U.S. patent application number 15/387538 was filed with the patent office on 2017-04-13 for dual-step snow sweeper.
This patent application is currently assigned to ZHEJIANG YAT ELECTRICAL APPLIANCE CO., LTD. The applicant listed for this patent is ZHEJIANG YAT ELECTRICAL APPLIANCE CO., LTD. Invention is credited to Zhiqiang HE, Dong WANG, Jin ZHANG.
Application Number | 20170101756 15/387538 |
Document ID | / |
Family ID | 54270058 |
Filed Date | 2017-04-13 |
United States Patent
Application |
20170101756 |
Kind Code |
A1 |
ZHANG; Jin ; et al. |
April 13, 2017 |
DUAL-STEP SNOW SWEEPER
Abstract
A dual-step snow sweeper includes a body, on which a driving
device, a self-propelled device, a snow sweeping device, and a
handrail control device are arranged. The driving device drives the
operation of the self-propelled device and the snow sweeping
device, the snow sweeping device includes a snow scraping mechanism
and a snow throwing mechanism, and the driving device includes at
least one motor which is powered by a power supply device. The
power supply device can use battery supply separately, and can
supply power by being connected with alternating current through an
AC-DC power supply system as well, or operate in such a way that
the AC directly drives an AC motor.
Inventors: |
ZHANG; Jin; (Zhejiang,
CN) ; WANG; Dong; (Zhejiang, CN) ; HE;
Zhiqiang; (Zhejiang, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
ZHEJIANG YAT ELECTRICAL APPLIANCE CO., LTD |
Zhejiang |
|
CN |
|
|
Assignee: |
ZHEJIANG YAT ELECTRICAL APPLIANCE
CO., LTD
Zhejiang
CN
|
Family ID: |
54270058 |
Appl. No.: |
15/387538 |
Filed: |
December 21, 2016 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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PCT/CN2015/084737 |
Jul 22, 2015 |
|
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15387538 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B60K 1/00 20130101; E01H
5/098 20130101; B60Y 2200/225 20130101; B60K 2001/001 20130101;
E01H 5/04 20130101; E01H 5/045 20130101 |
International
Class: |
E01H 5/09 20060101
E01H005/09; E01H 5/04 20060101 E01H005/04 |
Foreign Application Data
Date |
Code |
Application Number |
Jun 11, 2015 |
CN |
201510321309.5 |
Claims
1. A dual-step snow sweeper, comprising: a body, on which a driving
device, a self-propelled device, a snow sweeping device, and a
handrail control device are arranged, wherein the driving device
drives the operation of the self-propelled device and the snow
sweeping device, and the snow sweeping device comprises a snow
scraping mechanism and a snow throwing mechanism, wherein the
driving device comprises at least one motor which is powered by a
power supply device.
2. The dual-step snow sweeper according to claim 1, wherein the
motor uses a single motor or double motors, wherein when a single
motor is used, one motor drives the operation of the self-propelled
device and the snow sweeping device simultaneously, while when
double motors are used, one motor drives the operation of the
self-propelled device and the other motor drives the operation of
the snow sweeping device.
3. The dual-step snow sweeper according to claim 1, wherein the
motor uses three motors, the first one of which drives the
operation of the self-propelled device, the second one of which
drives the operation of the snow scraping mechanism, and the third
one of which drives the operation of the snow throwing
mechanism.
4. The dual-step snow sweeper according to claim 2, wherein when a
single motor is used, the motor is a brushless motor, a magnetic
steel motor, or a series-excited motor, and when more than two
motors are used, the brushless motor, the magnetic steel motor and
the series-excited motor are used simultaneously or the combination
of any of the above motors is used.
5. The dual-step snow sweeper according to claim 1, wherein the
power supply device is a battery pack assembly or AC power supply,
in which the battery pack assembly uses a single battery pack or
the combination in series or in parallel of several battery packs
of the same volume, the same voltage, or different volumes,
different voltages.
6. The dual-step snow sweeper according to claim 1, wherein the
power supply device uses a hybrid power system formed by AC and
DC.
7. The dual-step snow sweeper according to claim 6, wherein the DC
power supply directly drives the operation of the motor when the
whole machine is connected with the DC power supply; the AC power
supply drives the operation of the motor when the whole machine is
connected with the AC power supply in the state that the DC power
supply is connected or not connected.
8. The dual-step snow sweeper according to claim 1, wherein the
handrail control device comprises a plurality of sections of
handrail, and the uppermost section of handrail is connected with a
control panel.
9. The dual-step snow sweeper according to claim 1, wherein the
snow sweeping device comprises a snow throwing impeller, a snow
scraper, and a snow sweeping decelerating mechanism, in which the
snow throwing impeller is mounted on the input end of the snow
sweeping decelerating mechanism, and the snow scraper is mounted on
the output end of the snow sweeping decelerating mechanism.
10. The dual-step snow sweeper according to claim 1, wherein the
self-propelled device comprises a self-propelled decelerating
mechanism which is provided with a clutch mechanism, the handrail
control device is provided with a stay wire which is connected with
the clutch mechanism, and the clutch mechanism is controlled by the
stay wire.
11. The dual-step snow sweeper according to claim 3, wherein when a
single motor is used, the motor is a brushless motor, a magnetic
steel motor, or a series-excited motor, and when more than two
motors are used, the brushless motor, the magnetic steel motor and
the series-excited motor are used simultaneously or the combination
of any of the above motors is used.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application is a continuation of PCT application serial
no. PCT/CN2015/084737, filed on Jul. 22, 2015, which claims
priority to and the benefit of China Patent Application No.
CN201510321309.5, filed on Jun. 11, 2015, the disclosure of which
is incorporated herein by reference in its entirety.
TECHNICAL FIELD
[0002] The invention relates to a dual-step snow sweeper.
BACKGROUND
[0003] The dual-step snow sweeper has the following definition: the
first step of snow sweeping is to operate a snow scraper, and the
second step of snow sweeping is to throw out snow by an impeller
through upper and lower nozzle assemblies. All the dual-step snow
sweepers in the market are powered by a general engine.
[0004] The engine snow sweeper is one of the most effective snow
sweepers currently due to its strong power, high efficiency, and
strong operability. However, the general engine snow sweeper has
the following disadvantages: 1, it is complicated in structure,
complicated in operation, heavy in whole machine, poor in
man-machine efficiency, high in cost, and low in safety; and 2, the
engine snow sweeper is large in noise, serious in environmental
pollution, large in fuel consumption, and unfavourable in energy
conservation and emission reduction.
SUMMARY
[0005] The technical problem to be solved by the invention is to
provide a dual-step snow sweeper, which is simple in structure,
stable in performance, convenient in operation, low in noise, and
no in environmental pollution so as to overcome the disadvantages
of the engine snow sweeper in the using process.
[0006] To solve the above technical problem, the invention uses the
following technical solution: a dual-step snow sweeper, comprising:
a body, on which a driving device, a self-propelled device, a snow
sweeping device, and a handrail control device are arranged,
wherein the driving device drives the operation of the
self-propelled device and the snow sweeping device, the snow
sweeping device comprises a snow scraping mechanism and a snow
throwing mechanism, and the driving device comprises at least one
motor which is powered by a power supply device.
[0007] Preferably, the motor uses a single motor or double motors,
wherein when a single motor is used, one motor drives the operation
of the self-propelled device and the snow sweeping device
simultaneously, while when double motors are used, one motor drives
the operation of the self-propelled device and the other motor
drives the operation of the snow sweeping device.
[0008] Preferably, the snow sweeping device comprises a snow
scraping mechanism and a snow throwing mechanism. The motor uses
three motors, the first one of which drives the operation of the
self-propelled device, the second one of which drives the operation
of the snow scraping mechanism, and the third one of which drives
the operation of the snow throwing mechanism
[0009] Preferably, when a single motor is used, the motor is a
brushless motor, a magnetic steel motor, or a series-excited motor,
and when more than two motors are used, the brushless motor, the
magnetic steel motor and the series-excited motor are used
simultaneously or the combination of any of the above motors is
used.
[0010] Preferably, the power supply device is a battery pack
assembly or AC power supply, in which the battery pack assembly
uses a single battery pack or the combination in series or in
parallel of several battery packs of the same volume, the same
voltage, or different volumes, different voltages.
[0011] Preferably, the power supply device uses a hybrid power
system formed by AC and DC.
[0012] Preferably, the DC power supply directly drives the
operation of the motor when the whole machine is connected with the
DC power supply; the AC power supply drives the operation of the
motor when the whole machine is connected with the AC power supply
in the state that the DC power supply is connected or not
connected.
[0013] Preferably, the handrail control device comprises a
plurality of sections of handrail, and the uppermost section of
handrail is connected with a control panel.
[0014] Preferably, the snow sweeping device comprises a snow
throwing impeller, a snow scraper, and a snow sweeping decelerating
mechanism, in which the snow throwing impeller is mounted on the
input end of the snow sweeping decelerating mechanism, and the snow
scraper is mounted on the output end of the snow sweeping
decelerating mechanism.
[0015] Preferably, the self-propelled device comprises a
self-propelled decelerating mechanism which is provided with a
clutch mechanism, the handrail control device is provided with a
stay wire which is connected with the clutch mechanism, and the
clutch mechanism is controlled by the stay wire.
[0016] The self-propelled device and the dual-step snow sweeper in
the invention are driven by the motor. In addition, the power
supply device used in the invention can use battery supply
separately, and can supply power by being connected with
alternating current through an AC-DC power supply system as well,
or operate in such a way that the AC directly drives an AC motor.
Therefore, the invention is simple in structure, stable in
performance, convenient in assembly, humanized in operating mode,
clean in energy, reducing in environmental pollution, and low in
noise so as to achieve the purpose of environmental protection.
BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The invention will be further described in combination with
the accompanying drawings and specific embodiments:
[0018] FIG. 1 shows an overall structural diagram of the
invention;
[0019] FIG. 2 shows a structural schematic diagram of the
self-propelled device (being driven by a single motor);
[0020] FIG. 3 shows a structural schematic diagram of the
wheels;
[0021] FIG. 4 shows a structural schematic diagram of the dual-step
snow sweeping device (being driven by a single motor);
[0022] FIG. 5 shows a structural schematic diagram of the motor and
the planetary gearbox;
[0023] FIG. 6 shows a structural schematic diagram of the dual-step
snow sweeper (being driven by double motors);
[0024] FIG. 7 shows a structural schematic diagram of the
self-propelled device (being driven by double motors);
[0025] FIG. 8 shows an electrical control schematic diagram of
using the battery pack assembly as the power supply device; and
[0026] FIG. 9 shows an electrical control schematic diagram of
using the battery pack assembly as the power supply device.
DETAILED DESCRIPTION
[0027] As shown in FIGS. 1 to 9, a dual-step snow sweeper
comprises: a body, on which a driving device, a self-propelled
device, a snow sweeping device 2, and a handrail control device 3
are arranged, wherein the driving device drives the operation of
the self-propelled device and the snow sweeping device 2, and the
driving device comprises at least one motor which is powered by a
power supply device.
[0028] The snow sweeping device comprises a snow throwing impeller,
a snow scraper, and a snow sweeping decelerating mechanism, in
which the snow throwing impeller is mounted on the input end of the
snow sweeping decelerating mechanism, and the snow scraper is
mounted on the output end of the snow sweeping decelerating
mechanism. The self-propelled device comprises a self-propelled
decelerating mechanism which is provided with a clutch mechanism.
The handrail control device comprises an upper handrail 31 and a
lower handrail 32. The handrail control device is provided with a
stay wire which is connected with the clutch mechanism, and the
clutch mechanism is controlled by the stay wire. The upper handrail
31 is connected with a control panel 33. The control panel is
provided with a gear selecting module and a power supply control
module so that the user achieves the control selection of the
forward and backward functions of the whole machine. The control
panel is provided with a self-propelled motor control module for
controlling the multistage speed rotation and direction change of
the self-propelled motor as well.
[0029] The motor uses a single motor or double motors. When a
single motor is used, one motor drives the operation of the
self-propelled device and the snow sweeping device simultaneously,
while when double motors are used, one motor drives the operation
of the self-propelled device and the other motor drives the
operation of the snow sweeping device.
[0030] In addition, the motor is not limited to the use of one or
two motors described above. The motor can use a plurality of motors
as well. For example, since the snow sweeping device comprises a
snow scraping mechanism and a snow throwing mechanism, the motor
can use three motors, the first one of which drives the operation
of the self-propelled device, the second one of which drives the
operation of the snow scraping mechanism, and the third one of
which drives the operation of the snow throwing mechanism.
[0031] The use of a single motor for driving has the following
advantages: it can save motor cost, but will also make the
structure of the drive system complicated, while the use of double
motors or a plurality of motors has the following advantages: each
system can be controlled separately so as to simply the structure
of the drive system.
[0032] When a single motor is used, the motor is a brushless motor,
a magnetic steel motor, or a series-excited motor, and when more
than two motors are used, the brushless motor, the magnetic steel
motor and the series-excited motor are used simultaneously or the
combination of any of the above motors is used.
[0033] As shown in FIGS. 2 to 5, the dual-step snow sweeper driven
by a single motor comprises a drive mechanism 1 which is connected
with a self-propelled device and a dual-step snow sweeping device
2. The self-propelled device and the dual-step snow sweeping device
use the same motor 12 as the driving source.
[0034] As shown in FIG. 4, the output end of the motor 12 is
connected with a planetary gearbox 13 which is provided with a gear
ring 131 and a planetary gear 132 therein. The output shaft of the
motor drives the planetary gear to rotate as a sun gear. The
planetary gear drives the output shaft 133 of the planetary gearbox
to rotate within the gear ring.
[0035] As shown in FIGS. 2 and 3, the self-propelled device
comprises wheels 11 provided on both sides of the drive mechanism,
and a drive shaft 15 and a self-propelled reduction gearbox 14
provided within the drive mechanism. The motor 12 transmits the
power through the self-propelled reduction gearbox 14 and the drive
shaft 15 so as to drive the wheels 11. The self-propelled reduction
gearbox is provided with a self-propelled worm and gear mechanism
therein. The planetary gearbox and the self-propelled reduction
gearbox are driven by a self-propelled belt mechanism therebetween.
The self-propelled belt mechanism comprises a self-propelled
driving pulley arranged on the output shaft of the planetary
gearbox. One end of the self-propelled worm in the self-propelled
worm and gear mechanism is provided with a self-propelled driven
pulley. A self-propelled belt is provided between the
self-propelled driving pulley and the self-propelled driven pulley.
The self-propelled worm gear in the self-propelled worm and gear
mechanism drives the drive shaft to rotate. The self-propelled belt
mechanism is provided with a self-propelled tensioning pulley 16
which is connected with a self-propelled tensioning stay wire. The
handrail is provided with a self-propelled tensioning control
handle connected with the self-propelled tensioning stay wire.
[0036] After being output by the motor, it is output by the
planetary gearbox after deceleration. The rotating speed slows down
and the self-propelled torque increases. It is connected to the
self-propelled worm and gear mechanism by the self-propelled belt
mechanism in a decelerating way. The self-propelled worm drives the
self-propelled worm gear to achieve deceleration and increase the
torque, and drives the drive shaft and the wheels to achieve
self-propel. Since the self-propelled worm and gear mechanism does
not have the self-locking function of the worm and gear, the
mechanism can control the self-propelled tensioning pulley to
tension the self-propelled belt through the self-propelled
tensioning control handle connected to the self-propelled
tensioning stay wire on the handrail so that the self-propelled
worm gear drives the drive shaft and the wheels to rotate.
[0037] As shown in FIG. 5, the dual-step snow sweeping device 2
comprises a snow scraping cover 27 and a snow outlet 28
communicated with the snow scraping cover. A snow scraper 21 is
provided within the snow scraping cover. An impeller 22 is provided
between the scraping cover and the snow outlet for feeding snow
within the snow scraping cover into the snow outlet. The snow
scraper is mounted on a snow scraping support shaft. The impeller
is mounted on a worm 23, one end of which drives the snow scraping
support shaft through a snow sweeping worm gear. The planetary
gearbox 13 and the worm 23 are driven by a snow sweeping belt
mechanism 24 therebetween. The snow sweeping belt mechanism
comprises a snow sweeping driving pulley arranged on the output
shaft of the planetary gearbox. The other end of the worm is
connected with a snow sweeping driven pulley. A snow sweeping belt
is provided between the snow sweeping driving pulley and the snow
sweeping driven pulley. The snow sweeping belt mechanism is
provided with a snow sweeping tensioning pulley 25 which is
connected with a snow sweeping tensioning stay wire. The handrail
is provided with a snow sweeping tensioning control handle
connected with the snow sweeping tensioning stay wire.
[0038] The motor drives the worm to rotate through the snow
sweeping belt mechanism, and then the worm drives the snow sweeping
worm gear to operate. The snow sweeping worm gear drives the snow
scraper to start operation through the snow scraping support shaft.
The first step is to sweep snow as the operation of the snow
scraper, and the second step is to throw out snow, that is to say,
the impeller starts to throw out snow through the snow outlet after
snow enters the snow scraping cover, so as to achieve the purpose
of dual-step snow sweeping.
[0039] The above self-propelled device and the dual-step snow
sweeping device are driven by the same motor. The single motor
drives the operation of the dual-step snow sweeping device and the
self-propelled device simultaneously through double pulleys and
double belts after passing through the planetary gearbox.
[0040] As shown in FIGS. 6 and 7, the dual-step snow sweeper driven
by double motors comprises a drive mechanism 1 which is connected
with a self-propelled device and a dual-step snow sweeping device
2. The self-propelled device comprises wheels 11 provided on both
sides of the drive mechanism. The dual-step snow sweeping device 2
comprises a snow scraping cover and a snow outlet communicated with
the snow scraping cover. A snow scraper 21 is provided within the
snow scraping cover.
[0041] As shown in FIG. 7, the self-propelled device comprises a
self-propelled motor 17 mounted within the drive mechanism and a
self-propelled drive structure 18 connected with the drive shaft 15
as well. The output shaft of the self-propelled motor is connected
with the input shaft of the self-propelled drive structure 18 via a
belt. The self-propelled drive structure 18 drives the drive shaft
to rotate after the deceleration and the direction change via a
gear pair. The drive shaft drives the wheels to rotate so as to be
self-propelled.
[0042] In addition, as another structure of the self-propelled
device, a planetary gear assembly can be mounted inside the wheels.
The wheels are driven to rotate by the planetary gear assembly. The
self-propelled motor is a double-output shaft motor. The planetary
gear assembly comprises a gear ring and a planetary gear engaged on
the internal circumference side of the gear ring. After being
output by the self-propelled motor, the output rotating speed after
the deceleration by the planetary gear assembly slows down and the
self-propelled torque increases. The motor output shaft on both
sides of the self-propelled motor drives the planetary gear to
rotate as a sun gear. The planetary gear rotates within the gear
ring. The wheels are driven to rotate by the output shaft of the
planetary gear so as to be self-propelled.
[0043] As shown in FIG. 6, the dual-step snow sweeping device 2
comprises an impeller 22 provided between the scraping cover and
the snow outlet for feeding snow within the snow scraping cover
into the snow outlet. The snow scraper and the impeller are driven
by a snow sweeping motor 26. The snow scraper is mounted on a snow
scraping support shaft. The impeller is mounted on a worm 23, one
end of which drives the snow scraping support shaft through a worm
gear, while the other end of which is connected with a driven
pulley. The output shaft of the snow sweeping motor is used as the
output shaft of the driving pulley. A belt is provided between the
driving pulley and the driven pulley. The snow sweeping motor
drives the worm to rotate through the belt, and plays a role of
reducing the output rotating speed of the snow sweeping motor after
the deceleration by the belt so as to increase the torque. And then
the worm drives the worm gear to operate. The worm gear drives the
snow scraper to start operation through the snow scraping support
shaft. The first step is to sweep snow as the operation of the snow
scraper, and the second step is to throw out snow, that is to say,
the impeller starts to throw out snow through the snow outlet after
snow enters the snow scraping cover, so as to achieve the purpose
of dual-step snow sweeping.
[0044] In addition, the bottom of the snow outlet 28 is fixed on
the rotating gear ring which is engaged with the control gear. The
driving handle 34 mounted on the handrail controls the control gear
to rotate. The direction of the snow sweeping outlet can be
controlled conveniently so as to control the direction of snow
throwing.
[0045] The snow sweeping motor and the self-propelled motor
described above are powered by power supply. The self-propelled
motor and the snow sweeping motor share the same power supply. Each
of the self-propelled motor and the snow sweeping motor separately
drives the self-propelled device and the dual-step snow sweeping
device to operate. No matter it is driven by a motor or double
motors or a plurality of motors, the same power supply device is
used. The power supply device is a battery pack assembly or AC
power supply. The AC power supply converts AC into DC which is the
same as the voltage of the battery pack via a rectifier or a
transformer. Of course, the power supply device can use a hybrid
power system formed by AC and DC as well.
[0046] As shown in FIG. 8, when the power supply device is a
battery pack assembly, the battery pack assembly uses a single
battery pack or the combination in series or in parallel of several
battery packs of the same volume, the same voltage, or different
volumes, different voltages. Various battery packs are selected
unidirectionally to supply power through a mechanical device or a
software device so as to satisfy the choice of a plurality of sets
of battery packs for users and improve the operational capability
of the whole machine.
[0047] As shown in FIG. 9, when the power supply device uses the
hybrid power system formed by AC and DC, AC and DC can be mutually
converted for use so as to be suitable for different working
environments and provide more choices for users. When the whole
machine is inserted into the DC power supply, it can drive the
system to operate directly; when taking out or not taking out the
DC power supply drive system, it can drive the system to operate
directly when being inserted into the AC power supply; when the DC
power supply drive system operates, it can immediately change from
the AC drive system into the DC drive system to operate when being
inserted into the AC power supply.
* * * * *