CN220902471U - Bogie axle box dismounting device - Google Patents
Bogie axle box dismounting device Download PDFInfo
- Publication number
- CN220902471U CN220902471U CN202322798932.2U CN202322798932U CN220902471U CN 220902471 U CN220902471 U CN 220902471U CN 202322798932 U CN202322798932 U CN 202322798932U CN 220902471 U CN220902471 U CN 220902471U
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- axle box
- bearing
- dismounting device
- support
- bogie axle
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- 238000000926 separation method Methods 0.000 claims 1
- 238000005260 corrosion Methods 0.000 abstract description 9
- 230000007797 corrosion Effects 0.000 abstract description 8
- 238000000034 method Methods 0.000 abstract description 6
- 238000005096 rolling process Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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Abstract
The utility model discloses a bogie axle box dismounting device which comprises a pressure plate, a support, a telescopic mechanism and a power mechanism, wherein the telescopic mechanism is arranged on the support, the front end of the support is detachably connected with an axle box body, the power mechanism drives the movable end of the telescopic mechanism to extend forwards to push the rear end of the pressure plate, so that the front end of the pressure plate is tightly propped against the outer ring of a bearing, and the support pulls the axle box body backwards, so that the axle box body is separated from the bearing. In the disassembly process, the movable end of the power mechanism drives the telescopic mechanism to extend out, the outer ring of the bearing is tightly propped up by the pressure plate, and meanwhile, the telescopic mechanism pushes the support to pull the axle box backwards, so that the axle box is separated from the bearing, the disassembly resistance generated by fretting corrosion is effectively overcome, the disassembly efficiency of the axle box is greatly improved, the condition that the bearing rolling body and the inner ring bear the drawing force when the axle box is disassembled can be avoided, the bearing is protected, and the reliability and the safety of disassembly are improved.
Description
Technical Field
The utility model relates to the field of rail transit, in particular to a dismounting device for a bogie axle box.
Background
The bogie axle box is an important part of a rail transit vehicle and comprises an axle box body and a bearing arranged in the axle box body, an axle penetrates through the bearing, an outer ring of the bearing is connected with the axle box body, an inner ring of the bearing is connected with the axle, and the axle box body is hinged with the axle box body, wherein the installation and the disassembly of the axle box body are all completed manually, and in the disassembly process, the axle box body is required to be knocked through a metal rod to separate the bearing.
The main reason that the axle box body can be manually installed is that the axle box body and the bearing are in clearance fit, and the matching surface of the axle box body and the bearing is machined and smeared with grease during installation. However, when the vehicle is disassembled, the vehicle often runs for several years or even ten years, the axle box body and the outer ring of the bearing are subjected to fretting corrosion, and the position where the fretting corrosion occurs has to be separated by knocking. However, after fretting corrosion, the disassembly difficulty of the axle box body is greatly improved, mainly because particles formed after fretting corrosion are clamped at the gap between the axle box body and the bearing, and the formed friction force is difficult to overcome by manual drawing.
Therefore, how to provide a bogie axle box dismounting device convenient to dismount is a technical problem that needs to be solved currently by those skilled in the art.
Disclosure of utility model
The utility model aims to provide a bogie axle box dismounting device, which effectively overcomes dismounting resistance generated by fretting corrosion through a telescopic mechanism and a power mechanism, greatly improves the dismounting efficiency of an axle box body, can avoid the condition that a bearing rolling body and an inner ring bear drawing force when the axle box body is dismounted, and protects a bearing.
In order to solve the technical problems, the utility model provides a bogie axle box dismounting device which comprises a pressure plate, a support, a telescopic mechanism and a power mechanism, wherein the telescopic mechanism is arranged on the support, the front end of the support is detachably connected with an axle box body, the power mechanism drives the movable end of the telescopic mechanism to extend forwards to push the rear end of the pressure plate, so that the front end of the pressure plate is propped against an outer ring of a bearing, and the support pulls the axle box body backwards, so that the axle box body is separated from the bearing.
Preferably, the telescopic mechanism is specifically a hydraulic cylinder, and the power mechanism is specifically an electric control hydraulic pump.
Preferably, the pressure plate is a circular plate, an annular convex edge extending forwards is arranged at the circular edge of the front end surface of the pressure plate, and the size of the annular convex edge is matched with that of the bearing outer ring and abuts against the bearing outer ring.
Preferably, a plurality of hand-held holes are formed in the middle of the pressure plate.
Preferably, the electric control hydraulic pump is provided with a pressure gauge and a control button.
Preferably, the support comprises a support plate and a base which are oppositely arranged, a connecting ring is fixedly arranged on the periphery of the support plate, a connecting column is arranged between the connecting ring and the base, a cylinder body of the hydraulic cylinder is fixedly arranged between the support plate and the base, the support plate is positioned in front of the base, and a through hole for extending out a piston rod of the hydraulic cylinder is formed in the middle of the support plate.
Preferably, the connecting ring is provided with a plurality of positioning holes, each positioning hole corresponds to a threaded hole in the axle box body, and the bolt penetrates through the positioning hole and then is connected with the threaded hole.
Preferably, four of the positioning holes are uniformly arranged in the connecting ring.
Preferably, a mounting groove is formed in the middle of the front end face of the base, and the rear end of the cylinder body of the hydraulic cylinder is embedded into the mounting groove.
Preferably, four connecting columns are uniformly arranged around the hydraulic cylinder, and the connection part of the connecting columns and the connecting ring is positioned between two adjacent positioning holes.
The utility model provides a bogie axle box dismounting device which comprises a pressure plate, a support, a telescopic mechanism and a power mechanism, wherein the telescopic mechanism is arranged on the support, the front end of the support is detachably connected with an axle box body, the power mechanism drives the movable end of the telescopic mechanism to extend forwards to push the rear end of the pressure plate, so that the front end of the pressure plate is tightly propped against the outer ring of a bearing, and the support pulls the axle box body backwards, so that the axle box body is separated from the bearing. In the disassembly process, the movable end of the power mechanism drives the telescopic mechanism to extend out, the outer ring of the bearing is tightly propped up by the pressure plate, and meanwhile, the telescopic mechanism pushes the support to pull the axle box backwards, so that the axle box is separated from the bearing, the disassembly resistance generated by fretting corrosion is effectively overcome, the disassembly efficiency of the axle box is greatly improved, the condition that the bearing rolling body and the inner ring bear the drawing force when the axle box is disassembled can be avoided, the bearing is protected, and the reliability and the safety of disassembly are improved.
Drawings
FIG. 1 is a schematic view of a specific embodiment of a disassembly device for a bogie axle box according to the present utility model;
FIG. 2 is a schematic illustration of a truck axle box in one embodiment of a truck axle box removal apparatus provided by the present utility model;
FIG. 3 is a schematic view of a platen in an embodiment of a bogie axle box dismounting device provided by the utility model;
Fig. 4 is a schematic structural view of a bracket in an embodiment of the bogie axle box dismounting device provided by the utility model.
The hydraulic device comprises a pressure plate 1, an annular convex edge 11, a handheld hole 12, a bracket 2, a supporting plate 21, a base 22, a connecting ring 23, a connecting column 24, a positioning hole 25, a hydraulic cylinder 3, an electric control hydraulic pump 4, a pressure gauge 41, a control button 42, an axle box 5, a bearing 6 and an axle 7.
Detailed Description
The utility model has the core of providing a bogie axle box dismounting device, which effectively overcomes the dismounting resistance generated by micro-corrosion through a telescopic mechanism and a power mechanism, greatly improves the dismounting efficiency of an axle box body, and simultaneously can avoid the condition that a bearing rolling body and an inner ring bear drawing force when the axle box body is dismounted, and protects a bearing.
In order to better understand the aspects of the present utility model, the present utility model will be described in further detail with reference to the accompanying drawings and detailed description.
Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram of an embodiment of a bogie axle box dismounting device according to the present utility model; fig. 2 is a schematic structural view of a bogie axle box in an embodiment of the bogie axle box dismounting device provided by the utility model.
The utility model provides a bogie axle box dismounting device which comprises a pressure plate 1, a support 2, a telescopic mechanism and a power mechanism, wherein the pressure plate is used for dismounting an axle box 5, a bearing 6 is arranged in the axle box 5, an axle 7 penetrates through the bearing 6, the outer ring of the bearing 6 is connected with the axle box 5, the inner ring of the bearing 6 is connected with the axle 7 to realize hinging with the axle box 5, one end, close to the axle box 5, of all parts of the dismounting device is the front end, and the end, far away from the axle box 5, is the rear end. The telescopic mechanism is arranged on the support 2, the front end of the support 2 is detachably connected with the axle box 5, the movable end of the power mechanism drives the telescopic mechanism to extend forwards to push the rear end of the pressure plate 1, the front end of the pressure plate 1 is tightly propped against the outer ring of the bearing 6, and the support 2 pulls the axle box 5 backwards, so that the axle box 5 is separated from the bearing 6.
In the disassembly process, firstly, the pressing plate 1 is placed on the end face of the bearing 6, then the front end of the support 2 is connected with the axle box 5, the pressing plate 1 is positioned between the bearing 6 and the support 2, the power mechanism is started, the movable end of the power mechanism drives the telescopic mechanism to extend forwards, the pressing plate 1 is pushed to move forwards, the outer ring of the bearing 6 is pushed to tightly press the pressing plate 1, meanwhile, the telescopic mechanism pushes the support 2 to move backwards, namely, the position of the bearing 6 is pushed to be fixed, the telescopic mechanism drives the support 2 to pull the axle box 5 to move backwards, the axle box 5 is separated from the bearing 6, the disassembly resistance generated by fretting corrosion is effectively overcome, the disassembly efficiency of the axle box 5 is greatly improved, meanwhile, the condition that the rolling body and the inner ring of the bearing 6 bear drawing force when the axle box 5 is disassembled can be avoided, the bearing 6 is protected, and the reliability and the safety of disassembly are improved.
In the bogie axle box dismounting device of the specific embodiment of the utility model, the telescopic mechanism is specifically a hydraulic cylinder 3, and the power mechanism is specifically an electric control hydraulic pump 4. The electric control hydraulic pump 4 is connected with a rodless cavity at the rear end of the hydraulic cylinder 3 through a hose, wherein a pressure gauge 41 and a control button 42 are arranged on the electric control hydraulic pump 4. After the device is installed, when the electric control hydraulic pump 4 inputs high-pressure oil to the hydraulic cylinder 3, a piston rod of the hydraulic cylinder 3 pushes the pressure plate 1, the pressure plate 1 is in contact with an outer ring of the bearing 6 installed on the axle 7, and when the electric control hydraulic pump 4 continues to input high-pressure oil to the hydraulic cylinder 3, the hydraulic cylinder 3 pushes the axle box 5 to move in the opposite direction of the extension of the piston rod, so that the bearing 6 is separated from the axle box 5.
Referring to fig. 3, fig. 3 is a schematic structural view of a pressure plate in an embodiment of a bogie axle box dismounting device provided by the utility model.
Specifically, the pressure plate 1 is a disc, and an annular convex edge 11 extending forwards is arranged at the circular edge of the front end face of the pressure plate 1 to form a round box structure with a concave front end, and the size of the annular convex edge 11 is matched with the outer ring of the bearing 6, so that the front end edge of the annular convex edge 11 contacts and abuts against the outer ring of the bearing 6. The middle concave structure avoids contacting with the axle 7 and the inner ring of the bearing 6, thereby avoiding damaging the rolling bodies and the inner ring of the bearing 6 in the process of pushing the pressure plate 1 by the hydraulic cylinder 3.
Further, the middle part of the pressure plate 1 is provided with a plurality of hand-held holes 12, so that the hand-held installation is convenient, in particular, four evenly distributed hand-held holes 12 are arranged, and meanwhile, the plurality of hand-held holes 12 need to avoid the middle part position and are used for being in contact with the piston rod of the hydraulic cylinder 3.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a bracket in an embodiment of a bogie axle box dismounting device provided by the utility model.
On the basis of the bogie axle box dismounting device provided by the above-mentioned each concrete embodiment, the support 2 includes the backup pad 21 and the base 22 that set up relatively, the backup pad 21 periphery is fixed to be provided with go-between 23, install spliced pole 24 between 23 and the base 22, backup pad 21, the base 22, spliced pole 23 and spliced pole 24 form frame construction, the cylinder body fixed mounting of pneumatic cylinder 3 is between backup pad 21 and base 22, backup pad 21 is located the base 22 the place ahead, the during operation backup pad 21 is close to bearing 6 promptly, the backup pad 21 middle part is provided with the through-hole, the piston rod of pneumatic cylinder 3 passes the through-hole, the piston rod of during operation pneumatic cylinder 3 can stretch out with pressure disk 1 contact by the through-hole. Wherein, the front end of the hydraulic cylinder 3 is connected with the center position of the rear end surface of the supporting plate 21, and the rear end of the hydraulic cylinder 3 is connected with the center position of the front end surface of the base 22.
In order to realize stable connection of the support 2 and the axle box 5, a plurality of positioning holes 25 are formed in the connecting ring 23, the positioning holes 25 correspond to threaded holes in the axle box 5, when the axle box is mounted, the positioning holes 25 are aligned to the corresponding threaded holes, bolts penetrate through the positioning holes 25 and then are connected with the threaded holes, stable connection of the support 2 and the axle box 5 is realized, and after the disassembly is completed, the bolts can be detached to separate the support 2 from the axle box 5. Specifically, the four positioning holes 25 are uniformly arranged on the connecting ring 23, and of course, the number and arrangement modes of the component structures can be adjusted according to the situation, which are all within the protection scope of the present utility model.
In the bogie axle box dismounting device provided by the specific embodiment of the utility model, the middle part of the front end surface of the base 22 is provided with the mounting groove, and the rear end of the cylinder body of the hydraulic cylinder 3 is embedded into the mounting groove. The four connecting columns 24 are uniformly arranged around the hydraulic cylinder 3, and the connection positions of the connecting columns 24 and the connecting rings 23 are positioned between two adjacent positioning holes 25, so that the connection positions are staggered from the positioning holes 25, and interference is avoided. Other structures of the support 2, such as a sleeve structure, can be adopted, the hydraulic cylinder 3 is arranged in the sleeve, and the front end surface of the sleeve is detachably connected with the axle box 5.
The bogie axle box dismounting device provided by the utility model is described in detail above. The principles and embodiments of the present utility model have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the method of the present utility model and its core ideas. It should be noted that it will be apparent to those skilled in the art that various modifications and adaptations of the utility model can be made without departing from the principles of the utility model and these modifications and adaptations are intended to be within the scope of the utility model as defined in the following claims.
Claims (10)
1. The utility model provides a bogie axle box dismounting device, its characterized in that, including pressure disk (1), support (2), telescopic machanism and power unit, telescopic machanism install in support (2), connection axle box (5) can be dismantled to support (2) front end, the power unit drive telescopic machanism's expansion end stretches out forward and promotes pressure disk (1) rear end makes the front end top of pressure disk (1) is tight bearing (6) outer lane, just support (2) backward pulling axle box (5), makes axle box (5) with bearing (6) separation.
2. The bogie axle box dismounting device according to claim 1, characterized in that the telescopic mechanism is in particular a hydraulic cylinder (3) and the power mechanism is in particular an electrically controlled hydraulic pump (4).
3. The bogie axle box dismounting device according to claim 2, wherein the pressure plate (1) is specifically a disc, an annular convex edge (11) extending forward is arranged at the circular edge of the front end surface of the pressure plate (1), and the size of the annular convex edge (11) is matched with the outer ring of the bearing (6) and abuts against the outer ring of the bearing (6).
4. A bogie axle box dismounting device according to claim 3, characterized in that the pressure plate (1) is provided with a plurality of hand-held holes (12) in the middle.
5. The bogie axle box dismounting device according to claim 2, characterized in that a pressure gauge (41) and a control button (42) are provided on the electrically controlled hydraulic pump (4).
6. The bogie axle box dismounting device according to any one of claims 2 to 5, wherein the bracket (2) comprises a supporting plate (21) and a base (22) which are oppositely arranged, a connecting ring (23) is fixedly arranged on the periphery of the supporting plate (21), a connecting column (24) is arranged between the connecting ring (23) and the base (22), a cylinder body of the hydraulic cylinder (3) is fixedly arranged between the supporting plate (21) and the base (22), the supporting plate (21) is positioned in front of the base (22), and a through hole for extending a piston rod of the hydraulic cylinder (3) is arranged in the middle of the supporting plate (21).
7. The bogie axle box dismounting device according to claim 6, wherein a plurality of positioning holes (25) are provided on the connecting ring (23), each positioning hole (25) corresponds to a threaded hole on the axle box body (5), and a bolt passes through the positioning hole (25) and then is connected with the threaded hole.
8. The bogie axle box dismounting device according to claim 7, characterized in that four of the positioning holes (25) are uniformly arranged in the connecting ring (23).
9. The bogie axle box dismounting device according to claim 8, wherein a mounting groove is provided in the middle of the front end face of the base (22), and the rear end of the cylinder body of the hydraulic cylinder (3) is embedded in the mounting groove.
10. The bogie axle box dismounting device according to claim 9, characterized in that four of the connection posts (24) are evenly arranged around the hydraulic cylinder (3), the connection of the connection posts (24) with the connection ring (23) being located between two adjacent positioning holes (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322798932.2U CN220902471U (en) | 2023-10-18 | 2023-10-18 | Bogie axle box dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322798932.2U CN220902471U (en) | 2023-10-18 | 2023-10-18 | Bogie axle box dismounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220902471U true CN220902471U (en) | 2024-05-07 |
Family
ID=90905269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322798932.2U Active CN220902471U (en) | 2023-10-18 | 2023-10-18 | Bogie axle box dismounting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220902471U (en) |
-
2023
- 2023-10-18 CN CN202322798932.2U patent/CN220902471U/en active Active
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