CN112091883A - Bearing disassembling device for axle box of train wheel set - Google Patents
Bearing disassembling device for axle box of train wheel set Download PDFInfo
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- CN112091883A CN112091883A CN202010976826.7A CN202010976826A CN112091883A CN 112091883 A CN112091883 A CN 112091883A CN 202010976826 A CN202010976826 A CN 202010976826A CN 112091883 A CN112091883 A CN 112091883A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
- B25B27/064—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races fluid driven
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Abstract
A bearing disassembling device for a train wheel set axle box can complete the disassembly of the wheel set axle box and a bearing without disassembling a wheel set shaft from a steel wheel; the oil cylinder support and the vertical plate are both arranged on the bottom plate, an oil cylinder is arranged on the oil cylinder support, a telescopic shaft of the oil cylinder penetrates through the vertical plate and then is fixedly assembled with a power sleeve, the power sleeve is sleeved on an anti-falling short shaft, the anti-falling short shaft is fixed at one end of a connecting shaft, the other end of the connecting shaft is arranged in a connecting screw hole and is assembled with the connecting screw hole in a screwing manner through threads, the connecting screw hole is arranged on a drawing shaft, a half hole and a drawing screw hole are also formed in the drawing shaft and are mutually communicated, and one end of a drawing bolt penetrates through the drawing screw hole and then is assembled with a bearing screw hole; the vertical plate is also assembled and fixed with one end of the blocking shaft, and the end face of the other end of the blocking shaft is tightly propped against the stress plate of the shell; the power sleeve is internally provided with a hollow power connecting cavity, the anti-falling short shaft is arranged in the power connecting cavity, and the anti-falling short shaft cannot move towards the shell relative to the power sleeve.
Description
Technical Field
The invention relates to a train maintenance technology, in particular to a bearing disassembling device for a train wheel set axle box.
Background
In the process of train maintenance, the shaft box is necessary to be disassembled and disassembled. The wheel pair axle box is mainly sleeved on a wheel pair shaft and then is arranged on a bogie, and the interior of the wheel pair axle box is assembled with the wheel pair shaft through a bearing so as to play a role in supporting the wheel pair shaft. During maintenance, the wheelset axle needs to be removed from the bogie, and then the bearing is pulled out of the wheelset axle box, so that the wheelset axle box can be taken out. The existing method is to integrally disassemble a wheel-shaft from a steel wheel, then connect and fix the assembled end of the wheel-shaft and the steel wheel with a tool, and apply thrust to the tool, so that a bearing is pushed out from between the wheel-shaft and a wheel-pair axle box. In this way, the steel wheels need to be disassembled, so the disassembly and the assembly are more complicated, and a fixing device for the wheel pair axle box needs to be added, thereby being convenient for applying thrust to the wheel pair axle independently. Obviously, the whole device is complex, the dismounting efficiency is low, and especially the steel wheel does not need to be dismounted generally, and the dismounting of the steel wheel is time-consuming and labor-consuming.
In view of the above, the inventor designs a bearing disassembling device for a train wheel-set axle box, which can complete the disassembly of the wheel-set axle box and a bearing without disassembling a wheel-set shaft from a steel wheel.
Disclosure of Invention
In view of the above-mentioned defects in the prior art, the technical problem to be solved by the present invention is to provide a bearing dismantling device for a train wheel-set axle box.
In order to achieve the aim, the invention provides a bearing disassembling device of a train wheel-set axle box, which is used for pulling a bearing out of the axle box, wherein the axle box comprises a shell, one end of the shell, facing a steel wheel, is provided with a shell stress plate, the shell is internally provided with an axle sleeve, the axle sleeve is sleeved on an outer ring of the bearing, and an inner ring of the bearing and the axle box can not be assembled in a relative circumferential rotation manner; one end of the wheel axle penetrates through the bearing and the shell and then is assembled with the steel wheel; the inside of the bearing is a hollow bearing inner hole which is sleeved on the counter wheel shaft; a bearing screw hole is processed at one end of the shaft sleeve far away from the steel wheel;
the oil cylinder support and the vertical plate are both arranged on the bottom plate, an oil cylinder is arranged on the oil cylinder support, a telescopic shaft of the oil cylinder penetrates through the vertical plate and then is fixedly assembled with a power sleeve, the power sleeve is sleeved on an anti-falling short shaft, the anti-falling short shaft is fixed at one end of a connecting shaft, the other end of the connecting shaft is arranged in a connecting screw hole and is assembled with the connecting screw hole in a screwing manner through threads, the connecting screw hole is arranged on a drawing shaft, a half hole and a drawing screw hole are also formed in the drawing shaft and are communicated with each other, and one end of a drawing bolt penetrates through the drawing screw hole and then is assembled with a bearing screw hole in a;
the vertical plate is also fixedly assembled with one end of the blocking shaft, and the end face of the other end of the blocking shaft is tightly propped against the stress plate of the shell; the power sleeve is internally provided with a hollow power connecting cavity, the anti-falling short shaft is arranged in the power connecting cavity, and the anti-falling short shaft cannot move towards the shell relative to the power sleeve.
Preferably, the drawing screw hole and the drawing bolt are assembled in a screwing mode through threads, and the half hole and the drawing wheel can be assembled in an axial sliding mode.
Preferably, the anti-drop short shaft and the power sleeve are respectively provided with a first through hole and a second through hole, and the connecting screw penetrates through the first through hole and the second through hole so as to realize the relative fixation of the anti-drop short shaft and the power sleeve in the axial direction.
Preferably, the drawing wheel is set as a drawing gear, the drawing gear is in meshing transmission with a latch on the inner side of the drawing gear sleeve, the drawing gear sleeve can be sleeved on the drawing shaft in a circumferential rotating mode, and the drawing gear penetrates through the half hole in the radial direction.
Preferably, the latches inside the draw sleeve are distributed along their axial direction.
Preferably, the end, far away from the steel wheel, of the drawing shaft is sleeved with a limiting sleeve, and the limiting sleeve is used for preventing the drawing gear sleeve from being pulled out of the drawing shaft in the axial direction.
Preferably, the clamping device further comprises a clamping assembly, the clamping assembly comprises a clamping mounting ring and a clamping power disc, the clamping mounting ring is sleeved and fixed on the power sleeve, the clamping power disc is sleeved on the power sleeve in a circumferentially rotatable and axially immovable manner, an inner gear part is arranged on the inner side of the clamping power disc, the inner gear part is meshed and driven with one end of a clamping gear, the clamping gear is sleeved on a gear shaft in a circumferentially rotatable manner, the gear shaft is mounted on the clamping mounting ring, the clamping gear is meshed with a clamping rack to form a gear rack transmission mechanism, the clamping rack penetrates through the side wall of the power sleeve to enter a clamping chute and is assembled and fixed with a clamping sliding block, and the clamping sliding block is clamped and slidably mounted in the clamping chute; the clamping rack can slide in the radial direction of the power sleeve;
the external diameter of anticreep minor axis is greater than the external diameter of connecting axle to form the anticreep platform at connecting axle and anticreep minor axis junction, the anticreep minor axis is located joint slider and power connection chamber blind end, the joint slider can not be passed to the anticreep platform in the connecting axle axial.
Preferably, the power connecting device further comprises an indicating assembly, wherein the indicating assembly comprises an indicating shell, an indicating ring and an indicating rod, the indicating shell is fixed on the outer wall of the power sleeve, a hollow indicating hole is formed in the indicating shell, the indicating hole is clamped with the indicating ring and can be assembled in an axial sliding mode, the indicating ring is sleeved and fixed on one end of the indicating rod, and the other end of the indicating rod penetrates through the side wall of the power sleeve and the indicating chute and then enters the power connecting cavity;
an indicating stress ring is arranged on the part of the indicating rod, which is positioned in the indicating chute, and the indicating chute is arranged in the power sleeve and is communicated with the power connecting cavity; an indication spring is sleeved on a part of the indication rod, which is positioned between the indication stress ring and the inner end surface of the indication sliding chute, which is close to one end of the indication shell, and the indication spring is used for applying elastic resistance to the indication rod to prevent the indication rod from moving towards the indication shell; the indicating stress ring can slide in the indicating chute along the axial direction thereof;
the indicating rod is arranged in the indicating chute, the indicating chute is arranged on the side wall of the anti-falling short shaft, the inner side of the indicating chute is provided with an indicating inclined plane, and the indicating rod is in direct or indirect compression fit with the indicating inclined plane.
Preferably, one end of the indicating rod, which is arranged in the power connecting cavity, is spherically and rollably assembled with the indicating ball, and the indicating ball is tightly assembled with the indicating chute.
Preferably, the indication inclined plane is gradually separated from the axis of the anti-falling short shaft along the axial direction of the anti-falling short shaft from one end close to the telescopic shaft to one end connected with the connecting shaft.
The invention has the beneficial effects that:
the invention has simple structure and convenient use, and can pull out the bearing without disassembling the steel wheel by utilizing the bearing screw hole on the end surface of the bearing to install the pulling shaft. And through the assembly of connecting axle and power cover to can exert pulling force to drawing the axle through the power cover, with pull out the bearing, it is very convenient to use.
The invention also adopts the clamping assembly to realize the axial limit of the anti-drop short shaft, thereby providing possibility for pulling the drawing shaft by the connecting shaft, being very simple to use and greatly improving the efficiency.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic structural diagram of the present invention.
Fig. 4-5 are schematic structural diagrams of the drawing gear sleeve and the drawing gear.
FIG. 6 is a schematic view of the structure of the present invention (a sectional view at the center plane of the axis of the pulling shaft).
Fig. 7 is a schematic view of the structure of the present invention (a cross-sectional view taken through a plane where the end face of the chuck turntable is located).
Fig. 8 is a sectional view at the center plane where the axis of the connecting shaft is located.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
Referring to fig. 1-8, in the present embodiment, the axle box comprises a housing 160, a housing stress plate 150 is mounted on one end of the housing 160 facing the steel wheel 140, a shaft sleeve 320 is mounted inside the housing 160, the shaft sleeve 320 is sleeved on the outer ring of a bearing 330, and the inner ring of the bearing 330 is assembled with the axle 340 in a non-rotatable manner. One end of the counter axle 340 penetrates through the bearing 330 and the shell 160 to be assembled with the steel wheel 140. The tool of this embodiment is to pull the bearing 330 out of the axle 340, and after pulling out the bearing, the axle housing can be taken out of the axle 340 for the subsequent maintenance process. The end of the shaft sleeve 330 far away from the steel wheel is provided with a bearing screw hole 331, the interior of the bearing 330 is a hollow bearing inner hole 332, and the bearing inner hole 332 is sleeved on the counter-axle 340.
Referring to fig. 1 to 8, the bearing disassembling apparatus for axle boxes of train wheel sets of this embodiment includes a bottom plate 110, a vertical plate 120, and a cylinder bracket 130, the oil cylinder bracket 130 and the vertical plate 120 are both arranged on the bottom plate 110, the oil cylinder 210 is arranged on the oil cylinder bracket 130, the telescopic shaft 211 of the oil cylinder 210 penetrates through the vertical plate 120 and then is assembled and fixed with the power sleeve 630, the power sleeve 630 is sleeved on the anti-falling short shaft 440, the anti-drop short shaft 440 is fixed at one end of the connecting shaft 430, the other end of the connecting shaft 430 is installed in the connecting screw hole 413 and is screwed and assembled with the connecting screw hole through threads, the connecting screw hole 413 is arranged on the drawing shaft 410, the drawing shaft 410 is also provided with a half hole 411 and a drawing screw hole 412, the half hole 411 and the drawing screw hole 412 are communicated with each other, the drawing screw hole 412 and the drawing bolt 530 are assembled in a screwing mode through threads, and one end of the drawing bolt 530 penetrates through the drawing screw hole 412 and then is assembled in a screwing mode through threads with the bearing screw hole 331;
the half-hole 411 is axially slidably fitted with a drawing wheel 520. The vertical plate 120 is further assembled and fixed with one end of the blocking shaft 310, and the end face of the other end of the blocking shaft 310 abuts against the housing stress plate 150, so as to limit the maximum displacement of the housing 160 to the vertical plate 120. The power sleeve 630 is internally provided with a hollow power connecting cavity 632, the anti-dropping short shaft 440 is arranged in the power connecting cavity 632, and the anti-dropping short shaft 440 cannot move towards the shell 160 relative to the power sleeve 630. The anti-drop short shaft 440 and the power sleeve 630 are respectively provided with a first through hole 631 and a second through hole 441, and the connecting screw (not shown) passes through the first through hole 631 and the second through hole 441 to realize the relative fixation of the anti-drop short shaft 440 and the power sleeve 630 in the axial direction.
When the device is used, the oil cylinder 210 is started, so that the telescopic shaft 211 is driven to move towards the direction away from the steel wheel 140, axial tension is applied to the drawing shaft 410 through the connecting shaft 430, the drawing shaft 410 applies axial tension to the bearing 330 through the drawing bolt 530, the shell 160 is limited by the blocking shaft 310 and cannot move towards the oil cylinder, and therefore the bearing 330 can move axially with the shell and the wheel shaft until the bearing is completely pulled out of the shell.
Preferably, in order to quickly screw the drawing bolt 530 into the bearing screw hole 331, the drawing wheel 520 is provided as a drawing gear, the drawing gear 520 is in meshing transmission with a latch inside the drawing sleeve gear 510, the drawing sleeve gear 510 is circumferentially rotatably sleeved on the drawing shaft 410, and the drawing gear 520 partially penetrates through the half hole 411 in the radial direction so that the drawing gear 520 can be meshed with the drawing sleeve gear 510. The latches inside the pull-out sleeve gear 510 are distributed along the axial direction thereof, so as to ensure that the pull-out bolt 530 can be engaged with the pull-out sleeve gear 510 for transmission on the premise of axial movement. The end, far away from the steel wheel 140, of the drawing shaft 410 is sleeved with a limiting sleeve 420, and the limiting sleeve 420 is used for preventing the drawing gear sleeve 510 from being drawn out of the drawing shaft 410 in the axial direction.
Because the oil cylinder 210 is required to drive the power sleeve 630 to move towards the anti-falling short shaft 440 when the power sleeve 630 and the anti-falling short shaft 440 are assembled, a high-precision stepping oil cylinder cannot be adopted for the oil cylinder, and because the cost is too high, the first through hole 631 and the second through hole 441 are difficult to face each other, so that the connecting bolt cannot easily pass through the first through hole 631 and the second through hole 441. In practical use, a skilled worker needs at least 1-2 minutes to pass through the first through hole 631 and the second through hole 441, which obviously seriously affects the efficiency, contrary to the high efficiency sought by the present case. Therefore, the inventor designs a clamping assembly, which comprises a clamping mounting ring 620 and a clamping power disc 610, wherein the clamping mounting ring 620 is sleeved and fixed on the power sleeve 630, the clamping power disc 610 is sleeved on the power sleeve 630 in a circumferentially rotatable and axially immovable manner, an inner gear part 611 is arranged on the inner side of the clamping power disc 610, the inner gear part 611 is meshed and driven with one end of a clamping gear 650, the clamping gear 650 is sleeved on a gear shaft 670 in a circumferentially rotatable manner, the gear shaft 670 is mounted on the clamping mounting ring 620, the clamping gear 650 is meshed with a clamping rack 640 to form a gear rack transmission mechanism, the clamping rack 640 penetrates through the side wall of the power sleeve 630 to enter a clamping chute 634 and is assembled and fixed with a clamping slide block 660, and the clamping slide block 660 is clamped and slidably mounted in the clamping chute 634; the snap rack 640 can slide in the radial direction of the power sleeve 630.
The outer diameter of the anti-falling short shaft 440 is larger than that of the connecting shaft 430, so that an anti-falling platform 443 is formed at the connecting position of the connecting shaft 430 and the anti-falling short shaft 440, the anti-falling short shaft 440 is located at the closed end of the clamping sliding block 660 and the power connecting cavity 632, and the anti-falling platform 443 cannot penetrate through the clamping sliding block 660 in the axial direction of the connecting shaft 430, so that when the telescopic shaft 211 moves away from the connecting shaft, the telescopic shaft 211 can be attached to the end face of the anti-falling platform 443 tightly through the clamping sliding block.
In the initial state, the clamping slider 660 is loaded into the clamping chute 634 and does not enter the power connection cavity 632. When the anti-dropping device is used, the telescopic shaft drives the power sleeve 630 to move towards the anti-dropping short shaft 440 and is sleeved on the anti-dropping short shaft 440 until the anti-dropping platform 443 penetrates through the clamping sliding block 660; then, the clamping power disc 610 is rotated, so that the clamping power disc 610 drives the clamping gear 650 to rotate circumferentially, the clamping gear 650 drives the clamping rack 640 to move downwards, the clamping slider 660 is driven to move downwards along the clamping sliding groove 634, and the clamping slider 660 is overlapped with the anti-falling table 443 in the axial direction of the connecting shaft. Then the oil cylinder drives the telescopic shaft to move reversely to stretch the drawing shaft.
After the anti-drop short shaft 440 is installed in the power connection cavity 632, the position of the anti-drop short shaft 440 relative to the power connection cavity 632 in the axial direction can be judged only by feeling, which easily causes the impact between the closed end of the power connection cavity 632 and the anti-drop short shaft 440, the light person causes the damage of the anti-drop short shaft 440, and the heavy person causes the damage of the bearing and the oil cylinder, so that it is very important to detect whether the anti-drop short shaft 440 is assembled in place in the power connection cavity 632, and the inventor improves the following steps:
an indication assembly is added, the indication assembly comprises an indication shell 710, an indication ring 720 and an indication rod 730, the indication shell 710 is fixed on the outer wall of the power sleeve 630, a hollow indication hole 711 is arranged in the indication shell 710, the indication hole 711 is clamped with the indication ring 720 and can be assembled in an axial sliding mode, the indication ring 720 is sleeved and fixed on one end of the indication rod 730, the other end of the indication rod 730 penetrates through the side wall of the power sleeve 630 and enters the power connection cavity 632 after passing through the indication sliding groove 633, one end of the indication rod 730, which is arranged in the power connection cavity 632, is assembled with an indication ball 740 in a spherical rolling mode, an indication stress ring 731 is arranged on the part of the indication rod 730, which is positioned in the indication sliding groove 633, and the indication sliding groove 633 is arranged in the power sleeve 630 and is communicated with; the indicating rod 730 is sleeved with an indicating spring 740 at a part between the indicating force bearing ring 731 and the inner end surface of the indicating chute 633 close to one end of the indicating shell 710, and the indicating spring 740 is used for applying elastic resistance to the indicating rod 730 to prevent the indicating rod 730 from moving towards the indicating shell 710. The indicating force ring 731 is slidable in the indicating slide groove 633 along the axial direction thereof.
An indication inclined groove 442 is arranged on the side wall of the anti-falling short shaft 440, an indication inclined surface 4421 is arranged on the inner side of the indication inclined groove 442, and the indication inclined surface 4421 is gradually separated from the axis of the anti-falling short shaft 440 along the axial direction of the anti-falling short shaft 440 from one end close to the telescopic shaft to one end of the connecting shaft 430. The indicating rod 730 is inserted into the indicating chute 442, and the indicating ball 740 is closely fitted to the indicating chute 442.
During the process that the anti-falling short shaft 440 is installed in the power connection cavity 632, the indicating rod 730 is installed in the indicating chute 442, and the indicating ball 740 is tightly assembled with the indicating chute 442; as the anti-separation stub shaft 440 moves toward the power connection cavity 632, the indicating rod 730 can be driven to move toward the indicating ring 720 against the elastic force of the indicating spring 740, and whether the anti-separation stub shaft 440 is assembled in place in the power connection cavity 632 can be determined by the relative position of the indicating ring 720 and the outer end surface of the indicating hole 711. In this embodiment, the fitting is in place once the outer end face of indicator ring 720 is flush with the outer end face of indicator hole 711. This design is intuitive and does not require empirical evaluation, which can greatly improve efficiency on the one hand and reduce the probability of impact of the anti-drop stub shaft 440 with the closed end of the power connection cavity 632 on the other hand.
The invention is not described in detail, but is well known to those skilled in the art.
The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.
Claims (10)
1. A bearing disassembling device of a train wheel-pair axle box is used for pulling a bearing out of the axle box, the axle box comprises a shell, one end of the shell, which faces a steel wheel, is provided with a shell stress plate, an axle sleeve is arranged in the shell and sleeved on an outer ring of the bearing, and an inner ring of the bearing and the axle box can not be assembled in a relative circumferential rotation mode; one end of the wheel axle penetrates through the bearing and the shell and then is assembled with the steel wheel; the inside of the bearing is a hollow bearing inner hole which is sleeved on the counter wheel shaft; a bearing screw hole is processed at one end of the shaft sleeve far away from the steel wheel;
the method is characterized in that: the oil cylinder support and the vertical plate are both arranged on the bottom plate, an oil cylinder is arranged on the oil cylinder support, a telescopic shaft of the oil cylinder penetrates through the vertical plate and then is fixedly assembled with a power sleeve, the power sleeve is sleeved on an anti-falling short shaft, the anti-falling short shaft is fixed at one end of a connecting shaft, the other end of the connecting shaft is arranged in a connecting screw hole and is assembled with the connecting screw hole in a screwing manner through threads, the connecting screw hole is arranged on a drawing shaft, a half hole and a drawing screw hole are also formed in the drawing shaft and are communicated with each other, and one end of a drawing bolt penetrates through the drawing screw hole and then is assembled with a bearing screw hole in a;
the vertical plate is also fixedly assembled with one end of the blocking shaft, and the end face of the other end of the blocking shaft is tightly propped against the stress plate of the shell; the power sleeve is internally provided with a hollow power connecting cavity, the anti-falling short shaft is arranged in the power connecting cavity, and the anti-falling short shaft cannot move towards the shell relative to the power sleeve.
2. The bearing disassembling apparatus according to claim 1, wherein: the drawing screw hole and the drawing bolt are assembled in a screwing mode through threads, and the half hole and the drawing wheel can be assembled in an axial sliding mode.
3. The bearing disassembling apparatus according to claim 1, wherein: the anti-drop short shaft and the power sleeve are respectively provided with a first through hole and a second through hole, and the connecting screw penetrates through the first through hole and the second through hole so as to realize the relative fixation of the anti-drop short shaft and the power sleeve in the axial direction.
4. The bearing disassembling apparatus according to claim 2, wherein: the drawing wheel is set as a drawing gear, the drawing gear is in meshing transmission with a latch on the inner side of the drawing gear sleeve, the drawing gear sleeve is sleeved on the drawing shaft in a circumferential rotating mode, and the drawing gear penetrates out of the half hole in the radial direction.
5. The bearing disassembling apparatus according to claim 2, wherein: the clamping teeth inside the drawing tooth sleeve are distributed along the axial direction of the drawing tooth sleeve.
6. The bearing disassembling apparatus according to claim 1, wherein: the end, far away from the steel wheel, of the drawing shaft is sleeved with a limiting sleeve which is used for preventing the drawing gear sleeve from being drawn out of the drawing shaft in the axial direction.
7. The bearing dismantling device as claimed in any one of claims 1 to 6, wherein: the clamping device is characterized by further comprising a clamping assembly, wherein the clamping assembly comprises a clamping mounting ring and a clamping power disc, the clamping mounting ring is fixedly sleeved on the power sleeve in a sleeved mode, the clamping power disc is sleeved on the power sleeve in a circumferentially rotatable and axially immovable mode, an inner gear part is arranged on the inner side of the clamping power disc and is in meshed transmission with one end of a clamping gear, the clamping gear is sleeved on a gear shaft in a circumferentially rotatable mode, the gear shaft is mounted on the clamping mounting ring, the clamping gear is meshed with a clamping rack to form a gear and rack transmission mechanism, the clamping rack penetrates through the side wall of the power sleeve to enter a clamping chute and is assembled and fixed with a clamping sliding block, and the clamping sliding block is clamped and slidably; the clamping rack can slide in the radial direction of the power sleeve;
the external diameter of anticreep minor axis is greater than the external diameter of connecting axle to form the anticreep platform at connecting axle and anticreep minor axis junction, the anticreep minor axis is located joint slider and power connection chamber blind end, the joint slider can not be passed to the anticreep platform in the connecting axle axial.
8. The bearing disassembling apparatus according to claim 7, wherein: the power sleeve is characterized by further comprising an indicating assembly, wherein the indicating assembly comprises an indicating shell, an indicating ring and an indicating rod, the indicating shell is fixed on the outer wall of the power sleeve, a hollow indicating hole is formed in the indicating shell, the indicating hole is clamped with the indicating ring and can be assembled in an axial sliding mode, the indicating ring is sleeved and fixed on one end of the indicating rod, and the other end of the indicating rod penetrates through the side wall of the power sleeve and the indicating sliding groove and then enters the power connecting cavity;
an indicating stress ring is arranged on the part of the indicating rod, which is positioned in the indicating chute, and the indicating chute is arranged in the power sleeve and is communicated with the power connecting cavity; an indication spring is sleeved on a part of the indication rod, which is positioned between the indication stress ring and the inner end surface of the indication sliding chute, which is close to one end of the indication shell, and the indication spring is used for applying elastic resistance to the indication rod to prevent the indication rod from moving towards the indication shell; the indicating stress ring can slide in the indicating chute along the axial direction thereof;
the indicating rod is arranged in the indicating chute, the indicating chute is arranged on the side wall of the anti-falling short shaft, the inner side of the indicating chute is provided with an indicating inclined plane, and the indicating rod is in direct or indirect compression fit with the indicating inclined plane.
9. The bearing disassembling apparatus according to claim 8, wherein: one end of the indicating rod, which is arranged in the power connecting cavity, is assembled with the indicating ball in a spherical rolling manner, and the indicating ball is assembled with the indicating chute in a clinging manner.
10. A bearing dismantling device as claimed in claim 8 or 9, wherein: the indication inclined plane is gradually away from the axis of the anti-falling short shaft from one end close to the telescopic shaft to one end of the connecting shaft along the axial direction of the anti-falling short shaft.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2020108215933 | 2020-08-15 | ||
| CN202010821593 | 2020-08-15 |
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| Publication Number | Publication Date |
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| CN112091883A true CN112091883A (en) | 2020-12-18 |
| CN112091883B CN112091883B (en) | 2022-01-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010976826.7A Active CN112091883B (en) | 2020-08-15 | 2020-09-17 | Bearing disassembling device for axle box of train wheel set |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116618982A (en) * | 2023-05-19 | 2023-08-22 | 龙铁纵横（北京）轨道交通科技股份有限公司 | Axle box disassembling device for motor car wheel set |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116618982A (en) * | 2023-05-19 | 2023-08-22 | 龙铁纵横（北京）轨道交通科技股份有限公司 | Axle box disassembling device for motor car wheel set |
| CN116618982B (en) * | 2023-05-19 | 2024-05-10 | 龙铁纵横（北京）轨道交通科技股份有限公司 | Axle box disassembling device for motor car wheel set |
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| CN112091883B (en) | 2022-01-18 |
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