U.S. patent application number 16/030875 was filed with the patent office on 2018-11-08 for core-inlaid high manganese steel frog structure.
This patent application is currently assigned to SHANDONG YUANDA SPECIAL MATERIAL POLYTRON TECHNOLOGIES INC. The applicant listed for this patent is SHANDONG YUANDA SPECIAL MATERIAL POLYTRON TECHNOLOGIES INC. Invention is credited to Zhilei AN, Yanxue CAO, Zhimin DING, Zheng GU, Zhen LI, Xiaofan WANG, Yuansheng YANG, Guoqun ZHAO.
Application Number | 20180320322 16/030875 |
Document ID | / |
Family ID | 58962158 |
Filed Date | 2018-11-08 |
United States Patent
Application |
20180320322 |
Kind Code |
A1 |
CAO; Yanxue ; et
al. |
November 8, 2018 |
CORE-INLAID HIGH MANGANESE STEEL FROG STRUCTURE
Abstract
A core-inlaid high manganese steel frog structure includes a
high manganese steel frog body and an inlaid core. The high
manganese steel frog body includes a swing track connecting
section, a frog central section and a frog-and-track connecting
section. The wing track connecting section and the frog-and-track
connecting section are respectively arranged on front and rear ends
of the frog central section. A mounting groove for cooperatively
mounting the inlaid core is arranged in front of the frog central
section. The high manganese steel frog body and the inlaid core are
detachably connected. The high manganese steel frog body and the
inlaid core are detachably connected, which facilitates replacement
of vulnerable parts, saves cost, and meets user requirements. The
material and production procedure for the high-manganese steel frog
body can be different from those for the inlaid core, which helps
further improve the performance of the inlaid core.
Inventors: |
CAO; Yanxue; (Dezhou City,
CN) ; WANG; Xiaofan; (Dezhou City, CN) ; LI;
Zhen; (Dezhou City, CN) ; AN; Zhilei; (Dezhou
City, CN) ; DING; Zhimin; (Dezhou City, CN) ;
YANG; Yuansheng; (Dezhou City, CN) ; ZHAO;
Guoqun; (Dezhou City, CN) ; GU; Zheng; (Dezhou
City, CN) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
SHANDONG YUANDA SPECIAL MATERIAL POLYTRON TECHNOLOGIES INC |
Shandong |
|
CN |
|
|
Assignee: |
SHANDONG YUANDA SPECIAL MATERIAL
POLYTRON TECHNOLOGIES INC
Shandong
CN
|
Family ID: |
58962158 |
Appl. No.: |
16/030875 |
Filed: |
July 10, 2018 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
PCT/CN2017/000732 |
Dec 12, 2017 |
|
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|
16030875 |
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Current U.S.
Class: |
1/1 |
Current CPC
Class: |
C22C 22/00 20130101;
E01B 7/12 20130101 |
International
Class: |
E01B 7/12 20060101
E01B007/12; C22C 22/00 20060101 C22C022/00 |
Foreign Application Data
Date |
Code |
Application Number |
Mar 15, 2017 |
CN |
201710153588.8 |
Claims
1. A core-inlaid high manganese steel frog structure, comprising a
high manganese steel frog body and an inlaid core, in which the
high manganese steel frog body is molded in one unit, and includes
a swing track connecting section, a frog central section and a
frog-and-track connecting section; the wing track connecting
section and the frog-and-track connecting section are respectively
arranged on front and rear ends of the frog central section; a
mounting groove for cooperatively mounting the inlaid core is
arranged in front of the frog central section; the high manganese
steel frog body and the inlaid core are detachably connected.
2. The core-inlaid high manganese steel frog structure of claim 1,
wherein the inlaid core includes an upper connecting section which
has a triangle top view, a lower connecting section which is
connected with the mounting groove, in which an arc transition is
arranged between a tip of the upper connecting section and an upper
end surface of the lower connecting section; a rear end surface of
the upper connecting section is connected with a front end surface
of the frog central section; an upper end surface of the inlaid
core and an upper end surface of the frog central section are in
the same plane.
3. The core-inlaid high manganese steel frog structure of claim 2,
wherein a left side surface and a right side surface of the lower
connecting section are inclined from top to bottom and from outside
to inside; an angle of 2.degree. to 4.degree. is formed between the
side surfaces and vertical direction.
4. The core-inlaid high manganese steel frog structure of claim 2,
wherein the rear end surface of the inlaid core is inclined from
top to bottom and from inside to outside; an angle is formed
2.degree. to 4.degree. between the rear end surface of the inlaid
core and vertical direction.
5. The core-inlaid high manganese steel frog structure of claim 3,
wherein the rear end surface of the inlaid core is inclined from
top to bottom and from inside to outside; an angle is formed
2.degree. to 4.degree. between the rear end surface of the inlaid
core and vertical direction.
6. The core-inlaid high manganese steel frog structure of claim 1,
wherein first bolt holes are arranged along length direction of the
mounting groove at intervals; first bolt mounting holes
corresponding to the first bolt holes are arranged on lower end
surface of the inlaid core; the inlaid core and the steel frog body
are fixedly connected by bolts.
7. The core-inlaid high manganese steel frog structure of claim 2,
wherein first bolt holes are arranged along length direction of the
mounting groove at intervals; first bolt mounting holes
corresponding to the first bolt holes are arranged on lower end
surface of the inlaid core; the inlaid core and the steel frog body
are fixedly connected by bolts.
8. The core-inlaid high manganese steel frog structure of claim 3,
wherein first bolt holes are arranged along length direction of the
mounting groove at intervals; first bolt mounting holes
corresponding to the first bolt holes are arranged on lower end
surface of the inlaid core; the inlaid core and the steel frog body
are fixedly connected by bolts.
9. The core-inlaid high manganese steel frog structure of claim 6,
wherein an anti-rotation shim and a spring gasket are arranged
between the bolt and the high manganese steel frog body.
10. The core-inlaid high manganese steel frog structure of claim 2,
wherein arc transitions are respectively arranged between left and
right sides of the upper connecting section and the upper end
surface of the upper connecting section, and between left and right
sides of the upper connecting section and the upper end surface of
the low connecting section.
11. The core-inlaid high manganese steel frog structure of claim 2,
wherein a width of a read end of the upper end surface of the upper
connecting section is set to be 60 mm to 110 mm.
12. The core-inlaid high manganese steel frog structure of claim 2,
wherein left and right sides of the mounting groove are
respectively arranged with a flangeway; after the lower connecting
section is mounted into the mounting groove, left and right side
contours of the upper end surface of the lower connecting section
are respectively set to coincide with a center line of the bottom
of the flangeway.
13. The core-inlaid high manganese steel frog structure of claim
11, wherein left and right sides of the mounting groove are
respectively arranged with a flangeway; after the lower connecting
section is mounted into the mounting groove, left and right side
contours of the upper end surface of the lower connecting section
are respectively set to coincide with a center line of the bottom
of the flangeway.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This is a continuation of International Application No.
PCT/CN2017/000732, filed on Dec. 12, 2017, which claims the
priority benefits of China Application No. 201710153588.8, filed on
Mar. 15, 2017. The entirety of each of the above-mentioned patent
applications is hereby incorporated by reference herein and made a
part of this specification.
FIELD OF THE INVENTION
[0002] The present application relates to the field of railway
switches, especially to a core-inlaid high manganese steel frog
structure.
BACKGROUND OF THE INVENTION
[0003] Steel frog is an essential part of railway switch system, in
which high manganese steel frog has been widely used worldwide.
With growing development of railway operating mileage in China,
demand for high manganese steel frog is improving. Furthermore,
improvements on carrying capacity and speed also accelerate wastage
of high manganese steel frog, thus shortening service life of the
steel frog. Research finds that damages to the high manganese steel
frog are generally partial instead of overall, and there exists a
local defective space in which surface of the high manganese steel
frog is liable to be exfoliated and peeled, which degrades normal
use thereof. Furthermore, the high manganese steel frog is hard to
be renovated and may be scrapped simply due to partial damage,
which leads to significant waste.
SUMMARY OF THE INVENTION
[0004] The present application intends to provide a core-inlaid
high manganese steel frog for dealing with at least one issue
existing in the prior art, which saves the cost and meets the
demands at the same cost by switching the damaged parts
conveniently.
[0005] Technical solutions are as follows:
[0006] A core-inlaid high manganese steel frog structure includes a
high manganese steel frog body and an inlaid core, in which the
high manganese steel frog body is molded in one unit, and includes
a swing track connecting section, a frog central section and a
frog-and-track connecting section, the wing track connecting
section and the frog-and-track connecting section are respectively
arranged on front and rear ends of the frog central section; a
mounting groove for cooperatively mounting the inlaid core is
arranged in front of the frog central section; the high manganese
steel frog body and the inlaid core are detachably connected.
[0007] The inlaid core includes an upper connecting section which
has a triangle top view, a lower connecting section which is
connected with the mounting groove, in which an arc transition is
arranged between a tip of the upper connecting section and an upper
end surface of the lower connecting section; a rear end surface of
the upper connecting section is connected with a front end surface
of the frog central section; an upper end surface of the inlaid
core and an upper end surface of the frog central section are in
the same plane.
[0008] A left side surface and a right side surface of the lower
connecting section are inclined from top to bottom and from outside
to inside; an angle of 2.degree. to 4.degree. is formed between the
side surfaces and vertical direction, by which the lower connecting
section is easy to be mounted into and tightly fitted with the
mounting groove, forming a contact slope and improving
stability.
[0009] The rear end surface of the inlaid core is inclined from top
to bottom and from inside to outside; an angle is formed 2.degree.
to 4.degree. between the rear end surface of the inlaid core and
vertical direction, by which the upper connecting section is
tightly fitted with a front end surface of the frog central
section, which ensures smoothness and stability of the transition
between the inlaid core and the frog central section; the lower
connecting section is tightly fitted with the mounting groove; a
contact inclined surface is formed, which keeps the inlaid core
from moving upwards and downwards while the car is passing
over.
[0010] Bolt holes are arranged along length direction of the
mounting groove at intervals; bolt mounting holes corresponding to
the bolt holes are arranged on lower end surface of the inlaid
core; the inlaid core and the steel frog body are fixedly connected
by bolts, which is convenient for disassembly and assembly, and for
maintenance and replacement in case of damage, which further save
the cost.
[0011] An anti-rotation shim and a spring gasket are arranged
between the bolt and the high manganese steel frog body, which keep
the bolt from rotating, and ensure connection stability between the
inlaid core and the high manganese steel frog body.
[0012] Arc transitions are respectively arranged between left and
right sides of the upper connecting section and the upper end
surface of the upper connecting section, and between left and right
sides of the upper connecting section and the upper end surface of
the low connecting section.
[0013] A width of a read end of the upper end surface of the upper
connecting section is set to be 60 mm-110 mm as a standard for
design of the mounting groove and the inlaid core.
[0014] Left and right sides of the mounting groove are respectively
arranged with a flangeway; after the lower connecting section is
mounted into the mounting groove, left and right side contours of
the upper end surface of the lower connecting section are
respectively set to coincide with a center line of the bottom of
the flangeway.
[0015] Beneficial effects of the present application include:
[0016] 1. Since damages for the frog are generally partial instead
of overall and there exists a local defective space, in the present
application, the high-manganese steel frog body can be detachably
connected to the inlaid core, which facilitates replacement of
vulnerable parts, saves cost, and meets user requirements.
[0017] 2. Consider that the inlaid core is a vulnerable part, the
material and production procedure for the high-manganese steel frog
body can be different from those for the inlaid core, which helps
further improve the performance of the inlaid core, and reduce wear
capacity and rate.
[0018] 3. The rear end surface of the inlaid core is inclined from
top to bottom and from inside to outside to form the second contact
inclined surface, which keeps the inlaid core from moving upwards
and downwards while the car is passing over. A left side surface
and a right side surface of the lower connecting section are
inclined from top to bottom and from outside to inside to form the
first contact inclined surface, which is helpful for replacing the
inlaid core. The present application is appropriate in design and
is safe for use.
[0019] Above all, in comparison with the prior art, the present
application has prominent substantive features, and represents
notable progress and beneficial effects of the embodiments
described herein are obvious.
BRIEF DESCRIPTION OF THE DRAWINGS
[0020] FIG. 1 is a structural view of the present application;
[0021] FIG. 2 is a top view of the inlaid core of the present
application;
[0022] FIG. 3 is a front view of the inlaid core of the present
application;
[0023] FIG. 4 is a half section cut view of the inlaid core of the
present application;
[0024] FIG. 5 is a top view of the steel frog body of the present
application;
[0025] FIG. 6 is a front view of the steel frog body of the present
application;
[0026] FIG. 7 is a D-direction section cut view of FIG. 1;
[0027] FIG. 8 is an enlarged view of FIG. 7 at position B;
[0028] FIG. 9 is an E-direction section cut view of FIG. 1;
[0029] FIG. 10 is an F-direction section cut view of FIG. 1.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
[0030] In order to help understand the present application,
embodiments of the present application would be described in
detailed in accompany with the drawings.
Specific Embodiments
[0031] A core-inlaid high manganese steel frog structure includes a
high manganese steel frog body 1 and an inlaid core 2. The high
manganese steel frog body 1 is molded in one unit, and includes a
swing track connecting section, a frog central section 3 and a
frog-and-track connecting section 10. The wing track connecting
section and the frog-and-track connecting section 10 are
respectively arranged on front and rear ends of the frog central
section 3. A mounting groove 5 for cooperatively mounting the
inlaid core 2 is arranged in front of the frog central section 3.
The high manganese steel frog body 1 and the inlaid core 2 are
detachably connected.
[0032] The inlaid core 2 includes an upper connecting section 2-3
which has a triangle top view, a lower connecting section 2-2 which
is connected with the mounting groove 5. An arc transition 2-1 is
arranged between a tip of the upper connecting section 2-3 and an
upper end surface of the lower connecting section 2-2. A rear end
surface of the upper connecting section 2-3 is connected with a
front end surface of the frog central section 3. An upper end
surface of the inlaid core 2 and an upper end surface of the frog
central section 3 are in the same plane. A left side surface and a
right side surface of the lower connecting section 2-2 are inclined
from top to bottom and from outside to inside, thus forming a first
contact slope 2-6. A first angle 2-7 of the first contact slope 2-6
with respect to vertical direction is 2.degree. to 4.degree..
Through the design, the lower connecting section 2-2 is easy to be
mounted into the mounting groove 5, which is convenient for
replacing a damaged inlaid core 2. Rear end surfaces of the inlaid
core 2 includes a rear end surface of the upper connecting section
2-3 and a rear end surface of the lower connecting section 2-2. In
the present embodiment, the rear end surface of the upper
connecting section 2-3 is disposed coincidentally with the rear end
surface of the lower connecting section 2-2. The rear end surface
of the inlaid core 2 is inclined from top to bottom and from inside
to outside, foil ling a second contact inclined surface 2-4. A
second angle 2-8 of the second contact slope 2-4 with respect to
vertical direction is 2.degree. to 4.degree.. In the present
application, the second angel 2-8 is set to be 3.degree., whereas
the first angle 2-7 is also set to be 3.degree.. Through this
design, the upper connecting section is tightly fitted with a front
end surface of the frog central section 3, which ensures smoothness
and stability of the transition between the inlaid core 2 and the
frog central section 3. The lower connecting section 2-2 is tightly
fitted with the mounting groove 5, which keeps the inlaid core 2
from moving upwards and downwards while the car is passing
over.
[0033] A width of a read end of the upper end surface of the upper
connecting section 2-3 is set to be 60 mm to 110 mm. The arc
transitions 2-1 are respectively arranged between left and right
sides of the upper connecting section 2-3 and the upper end surface
of the upper connecting section 2-3, and between left and right
sides of the upper connecting section 2-3 and the upper end surface
of the lower connecting section 2-2. In the present embodiment, the
width of the read end of the upper end surface of the upper
connecting section 2-3 is set to be 80 mm.
[0034] As shown in FIG. 7, left and right sides of the mounting
groove 5 are respectively arranged with a flangeway 11. After the
lower connecting section 2-2 is mounted into the mounting groove 5,
the left and right side contours of the upper end surface of the
lower connecting section 2-2 are respectively set to coincide with
a center line of the bottom of the flangeway 11. During
preparation, length and size of the lower connecting section 2-2
can be adjusted accordingly, such that the size of the lower
connecting section 2-2 can be easy to be processed, which reduces
error remarkably.
[0035] First bolt holes 6 are arranged along length direction of
the mounting groove 5 at intervals. First bolt mounting holes 2-5
corresponding to the first bolt holes 6 are arranged on lower end
surface of the inlaid core 2. The inlaid core 2 and the high
manganese steel frog body 1 are fixedly connected to each other by
bolts 7. An anti-rotation shim 9 and a spring gasket 8 are arranged
between the bolt 7 and the high manganese steel frog body 1. Two
side walls of the high manganese steel frog body 1 are provided
with bolt mounting holes 4 for connecting with rails. The bolt
mounting holes 4 are located below the bottom surface of the
mounting groove 5.
[0036] Damages for the frog are generally partial instead of
overall and there exists a local defective space. In the present
application, the high-manganese steel frog body 1 can be detachably
connected to the inlaid core 2, which facilitates replacement of
vulnerable parts, saves cost, and meets user requirements. In
addition, consider that the inlaid core 2 is a vulnerable part, the
material and production procedure for the high-manganese steel frog
body 1 can be different from those for the inlaid core 2, which
helps further improve the performance of the inlaid core 2, and
reduce wear capacity and rate. The invention is reasonable in
design, and is safe and reliable for use and worthy of
promotion.
[0037] The above description and embodiments are not limitative of
the present application. Any change, modification, addition or
replacement made by those skilled in the art within substantial
scope of the present invention shall also be deemed as falling into
protection scope of the present invention.
* * * * *