CN210437196U - Rail car bogie axle box spring prefabricating device and replacing tool - Google Patents
Rail car bogie axle box spring prefabricating device and replacing tool Download PDFInfo
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- CN210437196U CN210437196U CN201921057082.8U CN201921057082U CN210437196U CN 210437196 U CN210437196 U CN 210437196U CN 201921057082 U CN201921057082 U CN 201921057082U CN 210437196 U CN210437196 U CN 210437196U
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- spring
- axle box
- seat
- pull rod
- rod body
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Abstract
The utility model provides a prefabricated device of railcar bogie axle box spring and change instrument. The railway car bogie axle box spring prefabricating device comprises: a spring upper seat; the lower spring seat is arranged below the upper spring seat; an axle box outer spring disposed between the spring upper seat and the spring lower seat; an axle box inner spring disposed between the spring upper seat and the spring lower seat, the axle box inner spring being located within the axle box outer spring; the two pull rod assemblies are symmetrically arranged on the upper spring seat and the lower spring seat; the railcar bogie axle box spring replacement tool comprises: an upper pull rod body; and the lower pull rod body is arranged below the upper pull rod body. The utility model provides a prefabricated device of railcar bogie axle box spring and change instrument have easy operation, circulated use, change convenient advantage.
Description
Technical Field
The utility model relates to a railcar accessory technical field especially relates to a prefabricated device of railcar bogie axle box spring and change instrument.
Background
With the high-speed development of railway industry in China, the research and application technology of rail engineering vehicles matched with railways is gradually improved. The bogie is a running part of a rail engineering vehicle and is used for transferring various loads and ensuring the generation of traction force by utilizing adhesion between wheel rails. The axle box is used as a bearing mechanism of the bogie, vertical static load and dynamic load in the running process of the vehicle are mainly transmitted through the spring group, the axle weights of the rail vehicles with different functions have large deviation, the corresponding axle box springs have different rigidity, and after the whole rail vehicle is assembled, the rigidity of the axle box springs needs to be adjusted sometimes, namely the axle box springs are replaced, so that the requirement of the vibration damping performance of the whole rail vehicle is met. This requires that the axle box spring be prefabricated before loading and replaced after loading simply and quickly.
The prefabrication of current railcar bogie axle box spring and change work mainly have following problem: 1. the axle box spring is prefabricated mainly in a mode of a process pin and a flat pin, and due to the structural particularity, the number of required auxiliary tools is too large, and the operation flow is complex; 2. the process pin and the flat pin for prefabricating the axle box spring need to be assembled on a vehicle after the spring prefabricating work is finished, and cannot be reused; 3. when the axle box spring is checked and replaced, the whole vehicle needs to be lifted up, even the bogie is disassembled, and the labor and material resources consumed by the spring replacement work are too large.
Therefore, there is a need to provide a new device for prefabricating axle box springs of a railway car bogie and a replacing tool to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide an easy operation, circulated use, change convenient prefabricated device of railcar bogie axle box spring and change instrument.
In order to solve the technical problem, the utility model provides a prefabricated device of railcar bogie axle box spring includes: a spring upper seat; the lower spring seat is arranged below the upper spring seat; an axle box outer spring disposed between the spring upper seat and the spring lower seat; an axle box inner spring disposed between the spring upper seat and the spring lower seat, the axle box inner spring being located within the axle box outer spring; the two pull rod assemblies are symmetrically arranged on the upper spring seat and the lower spring seat.
Preferably, two positioning holes are symmetrically formed in the upper spring seat and the lower spring seat.
Preferably, the pull rod assembly comprises a pull rod and two first positioning pins, the two first positioning pins are fixedly welded on the pull rod, and pin heads of the two first positioning pins are located in corresponding positioning holes.
In order to solve the technical problem, the utility model provides a rail car bogie axle box spring changes instrument includes: an upper pull rod body; the lower pull rod body is arranged below the upper pull rod body; the two second positioning pins are fixedly welded on the upper pull rod body and the lower pull rod body respectively; and the adjusting screw is arranged on the upper pull rod body and the lower pull rod body in a threaded manner.
Preferably, threaded holes are formed in the upper pull rod body and the lower pull rod body, and two ends of the adjusting screw rod extend into the corresponding threaded holes and are in threaded connection with the inner walls of the corresponding threaded holes.
Preferably, the outer wall of the adjusting screw is provided with two sections of external threads, and the rotating directions of the two sections of external threads are opposite.
Compared with the prior art, the utility model provides a prefabricated device of railcar bogie axle box spring and change instrument have following beneficial effect:
the utility model provides a railway vehicle bogie axle box spring prefabricating device and a replacing tool, wherein the positioning holes are symmetrically formed on the upper spring seat and the lower spring seat, and after the outer spring of the axle box and the inner spring of the axle box are pre-compressed to the mounting height, the upper spring seat and the lower spring seat are positioned into a whole by adopting pull rod assemblies at two sides, so that the prefabrication work of the spring is realized; after the whole vehicle is assembled, the axle box outer spring and the axle box inner spring are compressed for the second time on the basis of the prefabricated compression height, at the moment, the first positioning pins on the pull rods on the two sides of the spring upper seat and the spring lower seat can be automatically separated from the positioning holes, and the pull rod assembly can be recycled; the utility model discloses change instrument in the device adopts the structure of components of a whole that can function independently assembly, go up the pull rod body with the pull-down body of rod passes through the middle part adjusting screw connects, during the change spring, through the rotating adjusting screw realizes the axle box outer spring with the recompression of axle box inner spring works as the axle box outer spring with when the axle box inner spring high compression takes out to can be smoothly from the axle box and bogie frame within a definite time, stops the rotating adjusting screw to realize the inspection and the change work to the spring.
Drawings
Fig. 1 is a schematic cross-sectional view of a preferred embodiment of a railcar truck axlebox spring prefabricating apparatus provided by the present invention;
fig. 2 is a schematic front view of a structure of a drawbar assembly in a railcar bogie axle box spring prefabricating device provided by the present invention;
fig. 3 is a schematic cross-sectional view of a preferred embodiment of a railcar truck axlebox spring replacement tool in accordance with the present invention;
fig. 4 is a front view of a railcar truck axlebox spring changer in accordance with a preferred embodiment of the present invention.
Reference numbers in the figures: 1. the spring upper seat 2, the spring lower seat 3, the axle box outer spring 4, the axle box inner spring 5, the positioning hole 6, the pull rod 7, the first positioning pin 8, the upper pull rod body 9, the lower pull rod body 10, the second positioning pin 11, the adjusting screw rod 12 and the threaded hole.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic cross-sectional view illustrating a structure of a preferred embodiment of a device for prefabricating axle box springs of a railway car bogie according to the present invention; fig. 2 is the utility model provides a rail car bogie axle box spring prefabricating device middle pull rod subassembly's structure schematic front view. Railcar bogie axle box spring prefabrication device includes: a spring upper seat 1; the lower spring seat 2 is arranged below the upper spring seat 1; an axle box outer spring 3, wherein the axle box outer spring 3 is arranged between the upper spring seat 1 and the lower spring seat 2; an axle box inner spring 4, wherein the axle box inner spring 4 is arranged between the upper spring seat 1 and the lower spring seat 2, and the axle box inner spring 4 is positioned in the axle box outer spring 3; the two pull rod assemblies are symmetrically arranged on the spring upper seat 1 and the spring lower seat 2.
Two positioning holes 5 are symmetrically formed in the upper spring seat 1 and the lower spring seat 2.
The pull rod assembly comprises a pull rod 6 and two first positioning pins 7, the two first positioning pins 7 are fixedly welded on the pull rod 6, and pin heads of the two first positioning pins 7 are located in the corresponding positioning holes 5.
Referring to fig. 3 and 4, fig. 3 is a schematic cross-sectional view of a preferred embodiment of a tool for replacing axle box springs of a railway car truck according to the present invention; fig. 4 is a front view of a railcar truck axlebox spring changer in accordance with a preferred embodiment of the present invention. Railcar bogie axle box spring replacement tool includes: an upper pull rod body 8; the lower pull rod body 9 is arranged below the upper pull rod body 8, and the lower pull rod body 9 is arranged below the upper pull rod body 8; the two second positioning pins 10 are respectively fixedly welded on the upper pull rod body 8 and the lower pull rod body 9; and the adjusting screw rod 11 is installed on the upper pull rod body 8 and the lower pull rod body 9 in a threaded manner.
Threaded holes 12 are formed in the upper pull rod body 8 and the lower pull rod body 9, and two ends of the adjusting screw rods 11 extend into the corresponding threaded holes 12 and are in threaded connection with the inner walls of the corresponding threaded holes 12.
Two sections of external threads are formed on the outer wall of the adjusting screw rod 11, and the rotating directions of the two sections of external threads are opposite.
The utility model provides a railcar bogie axle box spring prefabrication device and change instrument's theory of operation as follows:
the axle box outer spring 3 and the axial inner spring 4 are assembled in the spring positioning grooves of the spring upper seat 1 and the spring lower seat 2, the spring upper seat 1, the spring lower seat 2, the axle box outer spring 3 and the axle box inner spring are taken as a whole, the axle box outer spring 3 and the axle box inner spring 4 can realize pre-compression under the pressure action of a press machine, the distance between the spring upper seat 1 and the spring lower seat 2 is also reduced, after the axle box outer spring 3 and the axle box inner spring 4 are compressed to the assembling height, the spring upper seat 1 and the spring lower seat 2 are positioned by adopting two groups of pull rod assemblies, and when positioning is carried out, the pin heads of the four first positioning pins 7 on the two groups of pull rods 6 are all clamped into the corresponding positioning holes 5, so that the locking of the spring upper seat and the spring lower seat is realized, and the spring compression is ensured not to be released, thereby realizing the integral prefabrication work of the outer axle box spring 3 and the inner axle box spring 4, and then the upper spring seat 1, the lower spring seat 2, the outer axle box spring 3 and the inner axle box spring 4 can be integrally assembled in the bogie axle box, after the whole railway vehicle is equipped, the axle box outer spring 3 and the axle box inner spring 4 can bear larger vertical load, the outer journal spring 3 and the inner journal spring 4 are compressed again, as compared with the prefabricated height at the time of assembly, so that the distance between the upper spring seat 1 and the lower spring seat 2 is reduced, when the two first positioning pins 7 on the pull rod 6 are disengaged from the positioning holes of the upper spring seat 1 and the lower spring seat 2, the two pull rods 6 can be easily taken down, and the railway vehicle does not need any positioning of a pull rod assembly in the running process, so that the recovery and the reutilization of the pull rod assembly are realized;
when the axle box spring of the bogie of the rail car is dismounted and replaced, two groups of replacing tools are used, when the spring is replaced, firstly, the replacing tools can be adjusted to a proper length by rotating the adjusting screw rod 11 through the tools, two second positioning pins 10 on the replacing tools are ensured to be respectively inserted into the positioning holes 5 of the upper spring seat 1 and the lower spring seat 2, then, the adjusting screw rod 11 is rotated through the tools to simultaneously contract the upper pull rod body 8 and the lower pull rod body 9, so that the overall length of the replacing tools is shortened, further, the distance between the upper spring seat 1 and the lower spring seat 2 is shortened, further, the outer axle box spring 3 and the inner axle box spring 4 are compressed again, when the heights of the outer axle box spring 3 and the inner axle box spring 4 are compressed to be taken out from the space between the smooth axle box body and the bogie frame, the adjusting screw rod 11 is stopped to be rotated, at this time, the outer journal spring 3 and the inner journal spring 4 can be taken out of the bogie axle box together with the upper spring seat 1 and the lower spring seat 2, thereby realizing the inspection and replacement of the springs.
Compared with the prior art, the utility model provides a prefabricated device of railcar bogie axle box spring and change instrument have following beneficial effect:
the utility model provides a railway car bogie axle box spring prefabricating device and a replacing tool, wherein the positioning holes 5 are symmetrically arranged on the upper spring seat 1 and the lower spring seat 2, after the outer axle box spring 3 and the inner axle box spring 4 are pre-compressed to the mounting height, the upper spring seat 1 and the lower spring seat 2 are positioned into a whole by adopting pull rod assemblies at two sides, and the prefabrication work of the spring is realized; after the whole vehicle is assembled, the axle box outer spring 3 and the axle box inner spring 4 are compressed for the second time on the basis of the prefabricated compression height, at the moment, the first positioning pins 7 on the pull rods 6 on the two sides of the spring upper seat 1 and the spring lower seat 2 can be automatically separated from the positioning holes 5, and the pull rod assembly can be recycled; the utility model discloses change instrument among the device adopts the structure of components of a whole that can function independently assembly, go up pull rod body 8 with the pull rod body 9 passes through the middle part adjusting screw 11 is connected, during the change spring, through the rotating adjusting screw 11 realizes the axle box outer spring 3 with the recompression of spring 4 in the axle box works as the axle box outer spring 3 with when 4 high compression of spring in the axle box takes out to can be smoothly from axle box and bogie frame within a definite time, stop the rotating adjusting screw 11 to realize the inspection and the change work to the spring.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (6)
1. A rail car bogie axle box spring prefabricating device which is characterized by comprising:
a spring upper seat;
the lower spring seat is arranged below the upper spring seat;
an axle box outer spring disposed between the spring upper seat and the spring lower seat;
an axle box inner spring disposed between the spring upper seat and the spring lower seat, the axle box inner spring being located within the axle box outer spring;
the two pull rod assemblies are symmetrically arranged on the upper spring seat and the lower spring seat.
2. The apparatus of claim 1, wherein the upper spring seat and the lower spring seat have two positioning holes symmetrically formed thereon.
3. The apparatus of claim 1, wherein the tie rod assembly comprises a tie rod and two first alignment pins, the two first alignment pins are fixedly welded to the tie rod, and pin heads of the two first alignment pins are located in corresponding alignment holes.
4. A railcar truck axlebox spring changing tool, characterized by, comprising:
an upper pull rod body;
the lower pull rod body is arranged below the upper pull rod body;
the two second positioning pins are fixedly welded on the upper pull rod body and the lower pull rod body respectively;
and the adjusting screw is arranged on the upper pull rod body and the lower pull rod body in a threaded manner.
5. The tool for replacing a spring of a railway car bogie axle box according to claim 4, wherein the upper pull rod body and the lower pull rod body are both provided with threaded holes, and both ends of the adjusting screw rod extend into the corresponding threaded holes and are in threaded connection with the inner walls of the corresponding threaded holes.
6. The tool for replacing a spring of a railcar bogie axle box according to claim 4, wherein two sections of external threads are formed on the outer wall of the adjusting screw, and the rotation directions of the two sections of external threads are opposite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921057082.8U CN210437196U (en) | 2019-07-08 | 2019-07-08 | Rail car bogie axle box spring prefabricating device and replacing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921057082.8U CN210437196U (en) | 2019-07-08 | 2019-07-08 | Rail car bogie axle box spring prefabricating device and replacing tool |
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| Publication Number | Publication Date |
|---|---|
| CN210437196U true CN210437196U (en) | 2020-05-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921057082.8U Active CN210437196U (en) | 2019-07-08 | 2019-07-08 | Rail car bogie axle box spring prefabricating device and replacing tool |
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| CN (1) | CN210437196U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091176A (en) * | 2022-07-25 | 2022-09-23 | 中车大连机车车辆有限公司 | Locomotive axle box spring dismounting device and dismounting method applied to railway site |
-
2019
- 2019-07-08 CN CN201921057082.8U patent/CN210437196U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115091176A (en) * | 2022-07-25 | 2022-09-23 | 中车大连机车车辆有限公司 | Locomotive axle box spring dismounting device and dismounting method applied to railway site |
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