Auxiliary wheel bearing dismounting tool

Abstract

The utility model discloses an auxiliary wheel bearing disassembling tool which comprises a disassembling support, a disassembling drag hook, a locking hoop, a hoop, a locking connecting piece and a mechanical separating device. A plurality of drag hook coupling parts in an annular array are arranged in the disassembling support, the disassembling drag hooks are L-shaped components, the multiple disassembling drag hooks are arranged, and the structures of the multiple disassembling drag hooks are the same; the upper ends of the plurality of dismounting drag hooks are respectively coupled in the plurality of drag hook coupling parts; the locking hoop sleeves the upper part of the dismounting bracket; a plurality of dismounting drag hooks can be locked and hooped to limit overturning; one end of the mechanical separation device is sleeved with the hoop, and the hoop is fixedly connected with the dismounting support through the locking connecting piece; the mechanical separation device separates the bearing from the transmission shaft rod. According to the invention, the bearing is pulled by a plurality of dismounting drag hooks, and the impact destructive force on the normal direction of the transmission shaft rod can be effectively reduced by a separation mode of applying acting force at multiple points by the bearing.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bearing dismounting equipment technical field, concretely relates to a kind of auxiliary wheel bearing dismounting tool. BACKGROUND

[0002] Auxiliary wheel will be provided on rail vehicle, auxiliary wheel is connected with transmission shaft by bearing;For safe and stable connection, bearing and transmission shaft adopt cold assembly, but bearing will appear damage, when, need to replace bearing, traditional mode is to adopt knock or electric saw cutting mode, bearing and transmission shaft are separated, these two modes can cause adverse effect to transmission shaft, to bury potential safety hazard;Therefore, need to pass through auxiliary mechanical equipment to bearing and transmission shaft safe and reliable dismounting separation device. SUMMARY

[0003] The utility model aims at solving above-mentioned problem, and provides a kind of auxiliary wheel bearing dismounting tool.

[0004] A kind of auxiliary wheel bearing dismounting tool, it includes: dismounting support, dismounting draw hook, locking hoop, hoop, lock fastening connecting piece connection, mechanical separation device;The dismounting support is equipped with multiple annular array draw hook shaft joint part, dismounting draw hook is L-shaped component, dismounting draw hook is equipped with multiple, multiple dismounting draw hook structure is same;Multiple dismounting draw hook upper end is respectively shafted in multiple draw hook shaft joint part;Locking hoop is sleeved in the upper portion of dismounting support;Multiple dismounting draw hook can locking hoop limit overturning;Hoop is sleeved in mechanical separation device one end, and hoop is fixedly connected with dismounting support by locking fastening connecting piece connection;Mechanical separation device separates bearing and transmission shaft.

[0005] Dismounting support is divided into lower dismounting support and upper dismounting support, and the lower dismounting support and the upper dismounting support are annular components;The center of the lower dismounting support is provided with a lower slide rod through hole, and the center of the upper dismounting support is provided with an upper slide rod through hole, and the upper end edge of the upper slide rod through hole is provided with a support ring;The upper slide rod through hole can correspond to the lower slide rod through hole, and the diameter of the upper slide rod through hole and the lower slide rod through hole is the same;The center of the locking hoop is provided with a sleeving ring, and the sleeving ring is sleeved on the support ring;The lower end of the hoop abuts against the upper end surface of the support ring.

[0006] The edge of the lower dismounting support is provided with a draw hook shaft joint lower part and a lower screw rod through hole;The edge of the upper dismounting support is provided with a draw hook shaft joint upper part and an upper screw rod through hole;The draw hook shaft joint lower part and the draw hook shaft joint upper part are arranged in the same number and are mutually butted to form a draw hook shaft joint part;The lower screw rod through hole and the upper screw rod through hole are arranged in the same number and are mutually butted.

[0007] The side of the dismounting draw hook is a draw hook edge rod;The lower end of the dismounting draw hook is provided with a hook head;The draw hook edge rod of the dismounting draw hook is inclined, and the upper end of the central axis extension line of multiple draw hook edge rods intersects with the central axis of the upper end of the dismounting support.

[0008] The sleeve joint ring is provided with an edge support on the outer diameter, and a plurality of pull hook deflection grooves are arranged on the edge support; the pull hook deflection grooves are arranged in the same number as the number of the dismounting pull hooks; the top side of the locking hoop is provided with a handle; the handle can make the pull hook deflection groove correspond to the dismounting pull hook, and the dismounting pull hook can be deflected at the pull hook deflection groove.

[0009] The first hoop and the second hoop can be combined into a circular ring member; the inner side of the first hoop is a first multi-rib clamping sleeve; the inner side of the second hoop is a second multi-rib clamping sleeve; the first multi-rib clamping sleeve and the second multi-rib clamping sleeve can form a hexagonal clamping sleeve; the hexagonal clamping sleeve is symmetrically provided with hoop ear holes on both sides.

[0010] The mechanical separation device is a screw rod type ejection mechanism, which comprises an ejection screw rod, a screw rod handle and an ejection nut; the ejection nut is sleeved in the hexagonal clamping sleeve; the ejection screw rod is sleeved in the ejection nut, and the screw rod handle is sleeved at the other end of the ejection screw rod; the front end of the ejection screw rod is provided with a screw rod top circle which can support the transmission shaft rod.

[0011] The mechanical separation device is a hydraulic push rod, one end of the hydraulic push rod is provided with a push rod connecting part, and the two sides of the push rod connecting part are provided with ear edges; one end of the hydraulic push rod is provided with a telescopic push rod; the push rod connecting part is sleeved in the hexagonal clamping sleeve, and the ear edges are sleeved in the hoop ear holes; the end of the telescopic push rod is provided with a hydraulic push rod top circle which can support the transmission shaft rod.

[0012] The technical scheme provides an auxiliary wheel bearing dismounting tool, which comprises a dismounting support, a dismounting pull hook, a locking hoop, a hoop, a locking connecting piece, and a mechanical separation device; a plurality of annular array pull hook shaft connecting parts are arranged in the dismounting support; the dismounting pull hook is an L-shaped member; a plurality of dismounting pull hooks are arranged, and the structures of the plurality of dismounting pull hooks are the same; the upper ends of the plurality of dismounting pull hooks are respectively connected to the plurality of pull hook shaft connecting parts; the locking hoop is sleeved on the upper part of the dismounting support; the plurality of dismounting pull hooks can be limited to turn over by the locking hoop; the hoop is sleeved at one end of the mechanical separation device, and the hoop is fixedly connected with the dismounting support through the locking connecting piece; the mechanical separation device separates the bearing and the transmission shaft rod. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is a whole schematic view of the screw rod type auxiliary wheel bearing dismounting tool.

[0014] Figure 2 It is a schematic view of the propelling screw rod mechanism of the screw rod type auxiliary wheel bearing dismounting tool.

[0015] Figure 3 is a kind of screw rod type auxiliary wheel bearing dismounting tool of the utility model a dismounting support overall schematic diagram;

[0016] Figure 4 is a kind of screw rod type auxiliary wheel bearing dismounting tool of the utility model a dismounting support structure exploded view;

[0017] Figure 5 is a kind of screw rod type auxiliary wheel bearing dismounting tool of the utility model a hoop structure schematic diagram;

[0018] Figure 6 is a kind of screw rod type auxiliary wheel bearing dismounting tool of the utility model a hoop butt joint schematic diagram;

[0019] Figure 7 is a kind of screw rod type auxiliary wheel bearing dismounting tool of the utility model a snap ring structure schematic diagram;

[0020] Figure 8 is a kind of screw rod type auxiliary wheel bearing dismounting tool of the utility model a structure schematic diagram of the snap hook shaft joint portion;

[0021] Figure 9 is a kind of hydraulic auxiliary wheel bearing dismounting tool of the utility model a whole schematic diagram;

[0022] Figure 10 is a kind of hydraulic auxiliary wheel bearing dismounting tool of the utility model a hydraulic push rod structure schematic diagram;

[0023] In the figure: 1, dismounting support, 11, lower dismounting support, 111, lower slide rod through hole, 112, pull hook shaft joint lower part, 113, lower screw rod through hole, 12, upper dismounting support, 121, upper slide rod through hole, 122, support ring, 123, pull hook shaft joint upper part, 124, upper screw rod through hole, 2, dismounting pull hook, 21, connecting shaft pin, 22, hook head, 3, locking hoop, 31, sleeve ring, 32, edge bracing, 33, pull hook deflection groove, 34, limit flange, 4, hoop, 41, first hoop, 411, first multi-rib clamping sleeve, 412, first hoop ear hole, 42, second hoop, 51, connecting screw rod, 52, connecting nut, 61, ejecting screw rod, 611, screw rod top circle, 62, screw rod handle, 63, ejecting nut, 7, hydraulic push rod, 71, push rod connecting portion, 711, ear along, 72, telescopic push rod, 721, hydraulic push rod top circle, 8, bearing, 9, transmission shaft rod. DETAILED DESCRIPTION

[0024] The technical solutions will be further clearly and completely described below with reference to the accompanying drawings of the technical solutions. The described embodiments are only a part of the technical solutions, and not all the embodiments. Based on the technical solutions, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0025] Embodiment 1: A screw rod type auxiliary wheel bearing dismounting tool

[0026] Referring to Figures 1 to 8 The screw rod type auxiliary wheel bearing dismounting tool comprises a dismounting support 1, a dismounting hook 2, a locking hoop 3, a clamping hoop 4, a locking connecting piece, and a screw rod type ejection mechanism.

[0027] The dismounting support 1 is divided into a lower dismounting support 11 and an upper dismounting support 12, and both the lower dismounting support 11 and the upper dismounting support 12 are annular members.

[0028] The lower dismounting support 11 is provided with a lower slide rod through hole 111 at the center, and the edge of the lower dismounting support 11 is provided with a hook shaft connecting lower part 112 and a lower screw rod through hole 113.

[0029] The hook shaft connecting lower part 112 is provided with a plurality of hook shaft connecting lower parts 112 arranged in an annular equidistant array. In this embodiment, the hook shaft connecting lower part 112 is provided with six hook shaft connecting lower parts 112 arranged in an annular equidistant array with the axis of the dismounting support 1 as the center.

[0030] The lower screw rod through hole 113 is provided with a plurality of lower screw rod through holes 113 arranged between two hook shaft connecting lower parts 112. In this embodiment, the lower screw rod through hole 113 is provided with four lower screw rod through holes 113 arranged in an annular equidistant array on the edge of the dismounting support 1.

[0031] The upper dismounting support 12 is provided with an upper slide rod through hole 121 at the center, and the upper end edge of the upper slide rod through hole 121 is provided with a support ring 122 with a height greater than the thickness of the upper dismounting support 12. The edge of the upper dismounting support 12 is provided with a hook shaft connecting upper part 123 and an upper screw rod through hole 124.

[0032] The upper slide rod through hole 121 can correspond to the lower slide rod through hole 111, and the diameter of the upper slide rod through hole 121 is the same as that of the lower slide rod through hole 111.

[0033] The hook shaft connecting upper part 123 is provided with the same number of hook shaft connecting lower parts 112, the hook shaft connecting upper part 123 and the hook shaft connecting lower part 112 are symmetrically the same in structure, and the hook shaft connecting upper part 123 corresponds to the hook shaft connecting lower part 112. The hook shaft connecting upper part 123 and the hook shaft connecting lower part 112 form a hook shaft connecting part.

[0034] The upper screw through hole 124 and the lower screw through hole 113 are arranged in the same number, the structure of the upper screw through hole 124 and the lower screw through hole 113 is symmetrical and the same, and the upper screw through hole 124 and the lower screw through hole 113 correspond to each other.

[0035] The dismounting hook 2 is an L-shaped component, the side of the dismounting hook 2 is a hook side rod, the top end of the hook side rod is provided with a connecting shaft pin 21, and the lower end of the dismounting hook 2 is provided with a hook head 22.

[0036] The dismounting hook 2 is provided with a plurality of dismounting hooks 2, the structures of the plurality of dismounting hooks 2 are the same, the plurality of dismounting hooks 2 are respectively connected to the hook shaft connecting part through the connecting shaft pin 21, the hook side rod of the dismounting hook 2 is in an inclined shape, the central axis extension lines of the plurality of hook side rods meet on the central axis of the upper end of the dismounting support 1.

[0037] The locking hoop 3 is provided with a sleeve joint ring 31 at the center, the outer diameter of the sleeve joint ring 31 is provided with an edge top support 32, the edge top support 32 is provided with a plurality of hook deflection grooves 33, at least one limiting flange 34 is arranged on the outer diameter of the sleeve joint ring 31, and the top side of the locking hoop 3 is provided with a handle 35.

[0038] The sleeve joint ring 31 is sleeved on the sleeve joint support ring 122, and the number of the hook deflection grooves 33 is the same as that of the dismounting hooks 2.

[0039] The locking hoop 3 can be deflected on the upper dismounting support 12, when the hook deflection grooves 33 correspond to the dismounting hooks 2 after the locking hoop 3 is deflected, the dismounting hooks 2 are in an unlocked position, and the dismounting hooks 2 can be deflected at the hook deflection grooves 33.

[0040] After the locking hoop 3 is deflected on the upper dismounting support 12 again, the edge top support 32 is on the inner side of the upper end of the dismounting hook 2, and the dismounting hook 2 is in a turned-over locking position, and the limiting flange 34 limits the turning-over of the dismounting hook 2.

[0041] The hoop 4 is composed of a first hoop 41 and a second hoop 42.

[0042] The first hoop 41 is a semicircular component, the annular inner side of the first hoop 41 is a first multi-rib clamping sleeve 411, one side of the multi-rib clamping sleeve 411 is provided with a first hoop ear hole 412, and the first hoop 41 is further provided with two hoop screw through holes, a screw nut counterbore 414 is arranged at the upper end of the hoop screw through hole, and the two hoop screw through holes can correspond to the two screw through holes respectively.

[0043] The second hoop 42 has the same structure as the first hoop 41, the annular inner side of the second hoop 42 is a second multi-rib clamping sleeve, the first hoop 41 and the second hoop 42 can be combined into a circular ring component, and the first multi-rib clamping sleeve 411 can form a hexagonal clamping sleeve together with the second multi-rib clamping sleeve.

[0044] The locking connector includes a connecting screw 51 and a connecting nut 52. The connecting nut 52 is fitted into the countersunk hole 414 of the nut. The connecting screw 51 passes through the lower screw through hole 113, the upper screw through hole 124, and the clamp screw through hole from bottom to top. The threaded part of the upper end of the connecting screw 51 is fitted into the connecting nut 52. That is, the disassembly bracket 1 and the clamp 4 are connected by the locking connector. The lower end of the clamp 4 abuts against the upper end face of the support ring 122.

[0045] The screw-type ejection mechanism includes: an ejection screw 61, a screw handle 62, and an ejection nut 63;

[0046] The ejector screw 61 has a screw top circle 611 at its front end and a shank connecting part 612 at its tail end. The screw shank 62 is sleeved in the shank connecting part 612. The ejector screw 61 body is sleeved in the ejector nut 63, and the ejector nut 63 is sleeved in the hexagonal clamping sleeve.

[0047] Using the screw-type auxiliary wheel bearing disassembly fixture described in this embodiment, when disassembling the bearing, the locking clamp 3 is in the unlocked position, and the hooks 22 of multiple disassembly hooks 2 hook onto one end face of the bearing 8. Then, the locking clamp 3 is turned, and the multiple disassembly hooks 2 are locked in a clamping bearing 8 position by the locking clamp 3. The operator uses the screw handle 62 to turn and push out the screw 61. The top circle 611 of the screw supports the transmission shaft 9, causing the bearing 8 and the transmission shaft 9 to separate. The multiple disassembly hooks 2 apply force to the bearing 8 at multiple points, reducing the impact and destructive force on the normal direction of the transmission shaft 9.

[0048] Example 2: A hydraulic push rod type auxiliary wheel bearing disassembly fixture

[0049] See appendix Figures 3-10 As shown, a hydraulic push rod type auxiliary wheel bearing disassembly fixture includes: a disassembly bracket 1, a disassembly hook 2, a locking clamp 3, a clamp 4, a locking connector, and a hydraulic push rod 7;

[0050] The disassembly bracket 1, disassembly hook 2, locking clamp 3, clamp 4, and locking connector are connected in the same way as described in Embodiment 1;

[0051] The hydraulic push rod 7 has a push rod connecting part 71 at one end, and lugs 711 on both sides of the push rod connecting part 71; the hydraulic push rod 7 has a telescopic push rod 72 at one end, and a hydraulic push rod top circle 721 at the end of the telescopic push rod 72; the clamp 4 has a first clamp 41 and a second clamp 42; the first clamp 41 and the second clamp 42 have the same structure; both the first clamp 41 and the second clamp 42 have clamp lugs; the two lugs 711 of the push rod connecting part 71 are respectively fitted into the two clamp lugs; the first clamp 41 and the second clamp 42 are connected and fixed to the disassembly bracket 1 by bolts; that is, one end of the hydraulic push rod is connected to the disassembly bracket 1 through the clamp 4;

[0052] When the bearing is disassembled by using the hydraulic push rod type auxiliary wheel bearing dismounting tool described in the embodiment, the locking hoop 3 is in the unlocked position, the hook heads 22 of the plurality of dismounting hooks 2 are hooked on one side end face of the bearing 8, then the locking hoop 3 is screwed, the plurality of dismounting hooks 2 are locked on the clamping bearing 8 by the locking hoop 3; the hydraulic push rod 7 is started, the hydraulic push rod top circle 721 supports the transmission shaft rod 9, so that the bearing 8 and the transmission shaft rod 9 are separated.

[0053] The cold assembly described in the background art is to cool the end of the transmission shaft rod 9 with liquid nitrogen first, so that its external dimensions shrink; the inner diameter of the bearing 8 is heated appropriately, so that the assembly gap between the bearing 8 and the assembly surface of the transmission shaft rod 9 is generated, which facilitates the bearing 8 to be sleeved on the transmission shaft rod 9; after the equipment is completed, the transmission shaft rod 9 is in interference fit with the bearing 8.

[0054] The screw rod type ejection mechanism is used to separate the bearing 8 and the transmission shaft rod 9 in embodiment 1; the hydraulic push rod 7 is used to separate the bearing 8 and the transmission shaft rod 9 in embodiment 2; the screw rod type ejection mechanism and the hydraulic push rod both belong to mechanical separation devices; the mechanical separation device is the same as applying force to the end face of the bearing 8 through the plurality of dismounting hooks 2, the plurality of dismounting hooks 2 are limited to turn over by the locking hoop 3, so that the hook heads 22 and the bearing 8 are stably stressed and are not easy to fall out; the separation mode of applying force to the bearing 8 at multiple points can effectively reduce the impact damage force to the normal direction of the transmission shaft rod 9.

Claims

1. An auxiliary wheel bearing dismounting tool comprising: The utility model discloses a detachable support (1), detachable hook (2), locking hoop (3), hoop (4), locking connecting piece connection, mechanical separation device, its characterized in that: the detachable support (1) in be equipped with multiple annular array's hook shaft joint part, detachable hook (2) is L shape component, detachable hook (2) is equipped with multiple, multiple detachable hook (2) structure is same, multiple detachable hook (2) upper end is respectively shafted in multiple hook shaft joint part, locking hoop (3) is sleeved in detachable support (1) upper portion, multiple detachable hook (2) can locking hoop (3) limit overturn, hoop (4) is sleeved in mechanical separation device one end, and hoop (4) is fixedly connected with detachable support (1) through locking connecting piece connection, and mechanical separation device separates bearing (8) and transmission shaft rod (9).

2. The auxiliary wheel bearing dismounting tool according to claim 1, characterized in that: The detachable support (1) is divided into lower detachable support (11) and upper detachable support (12), and the lower detachable support (11) and the upper detachable support (12) are both annular components; the center of the lower detachable support (11) is provided with a lower sliding rod through hole (111), the center of the upper detachable support (12) is provided with an upper sliding rod through hole (121), and the upper end edge of the upper sliding rod through hole (121) is provided with a supporting ring (122); the upper sliding rod through hole (121) can correspond to the lower sliding rod through hole (111), and the diameter of the upper sliding rod through hole (121) is the same as that of the lower sliding rod through hole (111); the center of the locking hoop (3) is provided with a sleeving ring (31), and the sleeving ring (31) is sleeved on the supporting ring (122); the lower end of the hoop (4) abuts against the upper end face of the supporting ring (122).

3. The auxiliary wheel bearing dismounting tool according to claim 2, characterized in that: The edge of the lower detachable support (11) is provided with a hook shaft joint lower part (112) and a lower screw rod through hole (113); the edge of the upper detachable support (12) is provided with a hook shaft joint upper part (123) and an upper screw rod through hole (124); the hook shaft joint lower part (112) and the hook shaft joint upper part (123) are arranged in the same number and are mutually butted to form a hook shaft joint part; and the lower screw rod through hole (113) and the upper screw rod through hole (124) are arranged in the same number and are mutually butted.

4. The auxiliary wheel bearing dismounting tool according to claim 3, characterized in that: The side of the detachable hook (2) is a hook side rod; the lower end of the detachable hook (2) is provided with a hook head (22); the hook side rod of the detachable hook (2) is inclined, and the upper end of the central axis extension line of multiple hook side rods intersects with the central axis of the upper end of the detachable support (1).

5. The auxiliary wheel bearing dismounting tool according to claim 4, characterized in that: The outer diameter of the sleeving ring (31) is provided with an edge supporting (32), and the edge supporting (32) is provided with multiple hook deflection grooves (33); the number of the hook deflection grooves (33) is the same as that of the detachable hook (2); the top side of the locking hoop (3) is provided with a handle (35); the handle (35) can make the hook deflection groove (33) correspond to the detachable hook (2), and the detachable hook (2) can be deflected at the hook deflection groove (33).

6. The auxiliary wheel bearing dismounting tool according to claim 5, characterized in that: The hoop (4) comprises a first hoop (41) and a second hoop (42), the first hoop (41) and the second hoop (42) can be combined into a circular ring member; the inner side of the first hoop (41) is a first multi-rib clamping sleeve (411); the inner side of the second hoop (42) is a second multi-rib clamping sleeve; the first multi-rib clamping sleeve (411) can be combined with the second multi-rib clamping sleeve into a hexagonal clamping sleeve; the hexagonal clamping sleeve is symmetrically provided with a hoop ear hole on both sides.

7. The auxiliary wheel bearing dismounting tool according to claim 6, characterized in that: The mechanical separation device is a screw type ejection mechanism, which comprises an ejection screw (61), a screw handle (62) and an ejection nut (63); the ejection nut (63) is sleeved in the hexagonal clamping sleeve; the ejection screw (61) is sleeved in the ejection nut (63), and the screw handle (62) is sleeved at the other end of the ejection screw (61); the ejection screw (61) is provided with a screw top circle (611) at the front end, and the screw top circle (611) can support the transmission shaft (9).

8. The auxiliary wheel bearing dismounting tool according to claim 6, characterized in that: The mechanical separation device is a hydraulic push rod (7), one end of the hydraulic push rod (7) is provided with a push rod connecting part (71), and the two sides of the push rod connecting part (71) are provided with ear edges (711); one end of the hydraulic push rod (7) is provided with a telescopic push rod (72); the push rod connecting part (71) is sleeved in the hexagonal clamping sleeve, and the ear edges (711) are sleeved in the hoop ear holes; the telescopic push rod (72) is provided with a hydraulic push rod top circle (721) at the end, and the hydraulic push rod top circle (721) can support the transmission shaft (9).

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