A bearing dismounting tool

Abstract

The utility model relates to a reducer bearing dismounting technology discloses a bearing dismounting frock, it includes bearing (1), bearing (1) still connects with the profiled tooth unit (3), the profiled tooth unit (3) is annular, the profiled tooth unit (3) is located on same rotation axis with gear shaft (2), and the profiled tooth unit (3) is contacted with the gear wheel end face of gear shaft (2), the profiled tooth unit (3) still connects with pull rod unit (5). The utility model in the limited dismounting space, utilizes the profiled tooth surface and avoids the interference with gear tooth surface, realizes the effective contact of frock and bearing end face, guarantees the rolling body not to be forced in the bearing dismounting process, ensures that the part is not damaged when dismounting, and the frock is simple in structure, convenient to make, low in cost, and high in labor-saving efficiency, convenient operation.

Description

Technical Field

[0001] This utility model relates to the technology of disassembling reducer bearings, and in particular to a bearing disassembly tool. Background Technology

[0002] With the design updates and changes in the internal structure of reducers, the space available for disassembling drive shafts and bearings is becoming increasingly limited. Alternatively, designers may have only considered the feasibility and convenience of assembly, neglecting the feasibility of disassembly. Currently, when using traditional pullers to disassemble some drive shafts and bearings, disassembly is inconvenient or impossible due to space and structure constraints, or the disassembly process may damage or render the parts unusable. To address these issues, specific disassembly fixtures are needed to achieve the disassembly of drive shafts and bearings. For example, existing technology: CN201320728230.0. Summary of the Invention

[0003] This utility model addresses the problem of damage or scrapping of parts caused by the disassembly process of reducer bearings in the prior art by providing a bearing disassembly tool.

[0004] To solve the above-mentioned technical problems, the present invention provides a solution through the following technical method: A bearing disassembly fixture includes a bearing and a gear shaft, and a profiled gear unit is connected to the bearing; the profiled gear unit is annular, the profiled gear unit and the gear shaft are located on the same rotation axis, and the profiled gear unit contacts the end face of the large gear of the gear shaft, and the profiled gear unit is also connected to a tie rod unit.

[0005] Preferably, a guide unit is also provided above the gear shaft, and the guide unit is positioned above the gear shaft by being positioned with the inner hole of the gear shaft.

[0006] Preferably, the contour tooth unit includes a first contour module, a second contour module, a third contour module, and a fourth contour module; The first, second, third, and fourth contouring modules are connected in sequence to form a ring.

[0007] By replacing or adjusting contour modules of different sizes to accommodate bearings of varying diameters and specifications, the applicability of the tooling is greatly expanded, and the cost of dedicated tooling for different equipment models is reduced. It facilitates installation and maintenance: in confined spaces, it can be installed in sections, solving the problem of inconvenient installation of integral ring-shaped components. Furthermore, damage to a single module only requires replacement of that module, eliminating the need to scrap the entire tooling, resulting in low maintenance costs.

[0008] Preferably, the first contouring module is provided with a first protrusion and a second protrusion; the second contouring module is provided with a third protrusion and a fourth protrusion; the third contouring module is provided with a fifth protrusion and a sixth protrusion; and the fourth contouring module is provided with a seventh protrusion and an eighth protrusion. Furthermore, each of the first, second, third, fourth, fifth, sixth, seventh, and eighth protrusions is provided with a through hole. The second and third protrusions are connected by bolts passing through the through holes; the fourth and fifth protrusions are connected by bolts passing through the through holes; the sixth and seventh protrusions are connected by bolts passing through the through holes; and the eighth protrusion is connected to the first protrusion by bolts passing through the through holes.

[0009] Preferably, the contouring modules arranged opposite each other in the first, second, third, and fourth contouring modules are provided with fixing holes for connecting the tie rod unit.

[0010] Preferably, the pull rod unit includes a pull rod, a first pull block, a second pull block, and a crossbar; the first pull block, pull rod, and second pull block pass through the crossbar sequentially. This symmetrical force-bearing design, where the first pull block, pull rod, and second pull block pass through the crossbar sequentially, ensures that the tension applied to the profile tooth unit is uniform and balanced. This avoids tilting of the profile tooth unit, poor contact with the bearing, or accidental disengagement caused by unilateral force, further ensuring a smooth and safe disassembly process.

[0011] Preferably, the pull rod is connected to the guide unit; the first pull block is connected to the first contouring module and the fourth contouring module through the fixing hole, and the second pull block is connected to the second contouring module and the third contouring module through the fixing hole.

[0012] Preferably, the thickness of the contour tooth unit is not less than 1.6 mm. By limiting the thickness of the contour tooth unit, it is ensured that the contour tooth unit has sufficient mechanical strength and rigidity, and can withstand the huge tensile stress generated during disassembly without bending, deforming or breaking, thereby ensuring the service life and reliability of the tooling.

[0013] This utility model, by adopting the above technical solution, has significant technical effects: This utility model avoids interference with the gear tooth surface by conforming to the tooth surface within a limited disassembly space, and achieves effective contact between the tooling and the bearing end face. This ensures that the rolling elements are not subjected to force during the bearing disassembly process and that the parts are not damaged during disassembly. This tooling has a simple structure, is easy to manufacture, has a low cost, and is labor-saving, efficient, and easy to operate.

[0014] This utility model ensures that the profile tooth unit has sufficient mechanical strength and rigidity by limiting the thickness of the profile tooth unit, so that it can withstand the huge tensile stress generated during disassembly without bending, deforming or breaking, thereby ensuring the service life and reliability of the tooling. Attached Figure Description

[0015] Figure 1 This is a structural diagram of the utility model.

[0016] Figure 2 This is a structural diagram of the unconnected contour tooth unit structure of this utility model.

[0017] Figure 3 This is a structural diagram of the profile tooth unit of this utility model.

[0018] Figure 4 This is a structural diagram of the utility model with a tie rod unit.

[0019] Among them, 1—bearing, 2—gear shaft, 3—following gear unit, 4—guide unit, 5—pull rod unit, 31—first following module, 32—second following module, 33—third following module, 34—fourth following module, 35—through hole, 36—fixing hole, 311—first protrusion, 312—second protrusion, 321—third protrusion, 322—fourth protrusion, 331—fifth protrusion, 332—sixth protrusion, 341—seventh protrusion, 342—eighth protrusion, 51—pull rod, 52—first pull block, 53—second pull block, and 54—crossbar. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0021] Example 1 A bearing disassembly fixture includes a bearing 1 and a gear shaft 2. A profile gear unit 3 is also connected to the bearing 1. The profile gear unit 3 is annular and is located on the same rotation axis as the gear shaft 2. The profile gear unit 3 is in contact with the end face of the large gear of the gear shaft 2. The profile gear unit 3 is also connected to a tie rod unit 5.

[0022] A guide unit 4 is also provided above the gear shaft 2. The guide unit 4 is positioned above the gear shaft 2 by being positioned with the inner hole of the gear shaft 2.

[0023] The contouring tooth unit 3 includes a first contouring module 31, a second contouring module 32, a third contouring module 33, and a fourth contouring module 34; The first contouring module 31, the second contouring module 32, the third contouring module 33, and the fourth contouring module 34 are connected in sequence to form a ring.

[0024] The first contouring module 31 is provided with a first protrusion 311 and a second protrusion 312; the second contouring module 32 is provided with a third protrusion 321 and a fourth protrusion 322; the third contouring module 33 is provided with a fifth protrusion 331 and a sixth protrusion 332; the fourth contouring module 34 is provided with a seventh protrusion 341 and an eighth protrusion 342; and each of the first protrusion 311, the second protrusion 312, the third protrusion 321, the fourth protrusion 322, the fifth protrusion 331, the sixth protrusion 332, the seventh protrusion 341 and the eighth protrusion 342 is provided with a through hole 35. The second protrusion 312 and the third protrusion 321 are connected by bolts passing through the through hole 35; the fourth protrusion 322 and the fifth protrusion 331 are connected by bolts passing through the through hole 35; the sixth protrusion 332 and the seventh protrusion 341 are connected by bolts passing through the through hole 35; and the eighth protrusion 342 and the first protrusion 311 are connected by bolts passing through the through hole 35.

[0025] Example 2 A bearing disassembly fixture includes a bearing 1 and a gear shaft 2. A profile gear unit 3 is also connected to the bearing 1. The profile gear unit 3 is annular and is located on the same rotation axis as the gear shaft 2. The profile gear unit 3 is in contact with the end face of the large gear of the gear shaft 2. The profile gear unit 3 is also connected to a tie rod unit 5.

[0026] A guide unit 4 is also provided above the gear shaft 2. The guide unit 4 is positioned above the gear shaft 2 by being positioned with the inner hole of the gear shaft 2.

[0027] The contouring tooth unit 3 includes a first contouring module 31, a second contouring module 32, a third contouring module 33, and a fourth contouring module 34; The first contouring module 31, the second contouring module 32, the third contouring module 33, and the fourth contouring module 34 are connected in sequence to form a ring.

[0028] The first contouring module 31 is provided with a first protrusion 311 and a second protrusion 312; the second contouring module 32 is provided with a third protrusion 321 and a fourth protrusion 322; the third contouring module 33 is provided with a fifth protrusion 331 and a sixth protrusion 332; the fourth contouring module 34 is provided with a seventh protrusion 341 and an eighth protrusion 342; and each of the first protrusion 311, the second protrusion 312, the third protrusion 321, the fourth protrusion 322, the fifth protrusion 331, the sixth protrusion 332, the seventh protrusion 341 and the eighth protrusion 342 is provided with a through hole 35. The second protrusion 312 and the third protrusion 321 are connected by bolts passing through the through hole 35; the fourth protrusion 322 and the fifth protrusion 331 are connected by bolts passing through the through hole 35; the sixth protrusion 332 and the seventh protrusion 341 are connected by bolts passing through the through hole 35; and the eighth protrusion 342 and the first protrusion 311 are connected by bolts passing through the through hole 35.

[0029] The first contouring module 31, the second contouring module 32, the third contouring module 33 and the fourth contouring module 34 are provided with fixing holes 36 for connecting the tie rod unit 5 in the contouring modules that are arranged opposite to each other.

[0030] The pull rod unit 5 includes a pull rod 51, a first pull block 52, a second pull block 53, and a crossbar 54; the first pull block 52, the pull rod 51, and the second pull block 53 pass through the crossbar 54 in sequence.

[0031] Pull rod 51 is connected to guide unit 4; first pull block 52 is connected to first contouring module 31 and fourth contouring module 34 through fixing hole 36, and second pull block 53 is connected to second contouring module 32 and third contouring module 33 through fixing hole 36.

[0032] Example 3 A bearing disassembly fixture includes a bearing 1 and a gear shaft 2. A profile gear unit 3 is also connected to the bearing 1. The profile gear unit 3 is annular and is located on the same rotation axis as the gear shaft 2. The profile gear unit 3 is in contact with the end face of the large gear of the gear shaft 2. The profile gear unit 3 is also connected to a tie rod unit 5.

[0033] A guide unit 4 is also provided above the gear shaft 2. The guide unit 4 is positioned above the gear shaft 2 by being positioned with the inner hole of the gear shaft 2.

[0034] The contouring tooth unit 3 includes a first contouring module 31, a second contouring module 32, a third contouring module 33, and a fourth contouring module 34; The first contouring module 31, the second contouring module 32, the third contouring module 33, and the fourth contouring module 34 are connected in sequence to form a ring.

[0035] The first contouring module 31 is provided with a first protrusion 311 and a second protrusion 312; the second contouring module 32 is provided with a third protrusion 321 and a fourth protrusion 322; the third contouring module 33 is provided with a fifth protrusion 331 and a sixth protrusion 332; the fourth contouring module 34 is provided with a seventh protrusion 341 and an eighth protrusion 342; and each of the first protrusion 311, the second protrusion 312, the third protrusion 321, the fourth protrusion 322, the fifth protrusion 331, the sixth protrusion 332, the seventh protrusion 341 and the eighth protrusion 342 is provided with a through hole 35. The second protrusion 312 and the third protrusion 321 are connected by bolts passing through the through hole 35; the fourth protrusion 322 and the fifth protrusion 331 are connected by bolts passing through the through hole 35; the sixth protrusion 332 and the seventh protrusion 341 are connected by bolts passing through the through hole 35; and the eighth protrusion 342 and the first protrusion 311 are connected by bolts passing through the through hole 35.

[0036] The first contouring module 31, the second contouring module 32, the third contouring module 33 and the fourth contouring module 34 are provided with fixing holes 36 for connecting the tie rod unit 5 in the contouring modules that are arranged opposite to each other.

[0037] The pull rod unit 5 includes a pull rod 51, a first pull block 52, a second pull block 53, and a crossbar 54; the first pull block 52, the pull rod 51, and the second pull block 53 pass through the crossbar 54 in sequence.

[0038] Pull rod 51 is connected to guide unit 4; first pull block 52 is connected to first contouring module 31 and fourth contouring module 34 through fixing hole 36, and second pull block 53 is connected to second contouring module 32 and third contouring module 33 through fixing hole 36.

[0039] The thickness of the contour tooth unit 3 is 1.6 mm.

[0040] Example 4 A bearing disassembly fixture includes a bearing 1 and a gear shaft 2. A profile gear unit 3 is also connected to the bearing 1. The profile gear unit 3 is annular and is located on the same rotation axis as the gear shaft 2. The profile gear unit 3 is in contact with the end face of the large gear of the gear shaft 2. The profile gear unit 3 is also connected to a tie rod unit 5.

[0041] A guide unit 4 is also provided above the gear shaft 2. The guide unit 4 is positioned above the gear shaft 2 by being positioned with the inner hole of the gear shaft 2.

[0042] The contouring tooth unit 3 includes a first contouring module 31, a second contouring module 32, a third contouring module 33, and a fourth contouring module 34; The first contouring module 31, the second contouring module 32, the third contouring module 33, and the fourth contouring module 34 are connected in sequence to form a ring.

[0043] The first contouring module 31 is provided with a first protrusion 311 and a second protrusion 312; the second contouring module 32 is provided with a third protrusion 321 and a fourth protrusion 322; the third contouring module 33 is provided with a fifth protrusion 331 and a sixth protrusion 332; the fourth contouring module 34 is provided with a seventh protrusion 341 and an eighth protrusion 342; and each of the first protrusion 311, the second protrusion 312, the third protrusion 321, the fourth protrusion 322, the fifth protrusion 331, the sixth protrusion 332, the seventh protrusion 341 and the eighth protrusion 342 is provided with a through hole 35. The second protrusion 312 and the third protrusion 321 are connected by bolts passing through the through hole 35; the fourth protrusion 322 and the fifth protrusion 331 are connected by bolts passing through the through hole 35; the sixth protrusion 332 and the seventh protrusion 341 are connected by bolts passing through the through hole 35; and the eighth protrusion 342 and the first protrusion 311 are connected by bolts passing through the through hole 35.

[0044] The first contouring module 31, the second contouring module 32, the third contouring module 33 and the fourth contouring module 34 are provided with fixing holes 36 for connecting the tie rod unit 5 in the contouring modules that are arranged opposite to each other.

[0045] The pull rod unit 5 includes a pull rod 51, a first pull block 52, a second pull block 53, and a crossbar 54; the first pull block 52, the pull rod 51, and the second pull block 53 pass through the crossbar 54 in sequence.

[0046] Pull rod 51 is connected to guide unit 4; first pull block 52 is connected to first contouring module 31 and fourth contouring module 34 through fixing hole 36, and second pull block 53 is connected to second contouring module 32 and third contouring module 33 through fixing hole 36.

[0047] The thickness of the contour tooth unit 3 is 2mm.

[0048] Example 5 In this embodiment, the contouring gear units are sequentially placed to mate with the tooth surfaces of the gear shaft. The contouring gear units are flush with the end face of the large gear on the gear shaft. The first contouring module 31, the second contouring module 32, the third contouring module 33, and the fourth contouring module 34 are sequentially connected to form a ring. Each of the first contouring module 31, the second contouring module 32, the third contouring module 33, and the fourth contouring module 34 has two bosses, each with a threaded hole and a through hole. After mating, bolts are used to sequentially connect the first contouring module 31, the second contouring module 32, the third contouring module 33, and the fourth contouring module 34 into a ring and pre-tighten them together. The contouring gear units are then lifted up to flush with the inner ring of the bearing, and bolts and nuts are used to lock the first contouring module 31, the second contouring module 32, the third contouring module 33, and the fourth contouring module 34 together, as shown.

[0049] The guide unit is positioned above the gear shaft by being positioned within the gear shaft's inner hole. The pull rod and crossbar are threaded together. Both the first and second pull blocks have square slots. The crossbar passes through these square slots, connecting the first and second pull blocks. The contour gear unit has threaded holes. The first and second pull blocks and the contour gear unit are fixed together with bolts. After the bolts are tightened, they contact the end face of the crossbar to ensure the pull blocks do not wobble. Finally, by driving the pull rod clockwise, the contour gear unit separates the bearing from the gear shaft. This disassembly method effectively solves the problem of being unable to disassemble the bearing due to insufficient space between parts.

Claims

1. A bearing disassembly fixture, comprising a bearing (1) and a gear shaft (2), characterized in that, The bearing (1) is also connected to a profile tooth unit (3); the profile tooth unit (3) is ring-shaped, the profile tooth unit (3) and the gear shaft (2) are located on the same rotating axis, and the profile tooth unit (3) is in contact with the large gear end face of the gear shaft (2). The profile tooth unit (3) is also connected to a tie rod unit (5).

2. The bearing disassembly fixture according to claim 1, characterized in that, A guide unit (4) is also provided above the gear shaft (2). The guide unit (4) is positioned above the gear shaft (2) by positioning with the inner hole of the gear shaft (2).

3. The bearing disassembly fixture according to claim 1, characterized in that, The contour tooth unit (3) includes a first contour module (31), a second contour module (32), a third contour module (33) and a fourth contour module (34); The first contouring module (31), the second contouring module (32), the third contouring module (33), and the fourth contouring module (34) are connected in sequence to form a ring.

4. The bearing disassembly fixture according to claim 1, characterized in that, The first contouring module (31) is provided with a first protrusion (311) and a second protrusion (312); the second contouring module (32) is provided with a third protrusion (321) and a fourth protrusion (322); the third contouring module (33) is provided with a fifth protrusion (331) and a sixth protrusion (332); the fourth contouring module (34) is provided with a seventh protrusion (341) and an eighth protrusion (342); and the first protrusion (311), the second protrusion (312), the third protrusion (321), the fourth protrusion (322), and the fifth protrusion (312) are ... second protrusion (312); the second contouring module (32) is provided with a third protrusion (321) and a fourth protrusion (322); the third contouring module (33) is provided with a fifth protrusion (331) and a sixth protrusion (332); the fourth contouring module (34) is provided with a seventh protrusion (341) and an eighth protrusion (342); and the fifth protrusion (311), the second protrusion (312), the third protrusion (321), the fourth protrusion (322 31) The sixth protrusion (332), the seventh protrusion (341) and the eighth protrusion (342) are all provided with through holes (35). The second protrusion (312) and the third protrusion (321) are connected by bolts passing through the through holes (35); the fourth protrusion (322) and the fifth protrusion (331) are connected by bolts passing through the through holes (35); the sixth protrusion (332) and the seventh protrusion (341) are connected by bolts passing through the through holes (35); the eighth protrusion (342) and the first protrusion (311) are connected by bolts passing through the through holes (35).

5. A bearing disassembly fixture according to claim 1, characterized in that, The first contouring module (31), the second contouring module (32), the third contouring module (33) and the fourth contouring module (34) are provided with fixing holes (36) for connecting the tie rod unit (5).

6. The bearing disassembly fixture according to claim 1, characterized in that, The pull rod unit (5) includes a pull rod (51), a first pull block (52), a second pull block (53), and a crossbar (54); the first pull block (52), the pull rod (51), and the second pull block (53) pass through the crossbar (54) in sequence.

7. A bearing disassembly fixture according to claim 6, characterized in that, The pull rod (51) is connected to the guide unit (4); the first pull block (52) is connected to the first contouring module (31) and the fourth contouring module (34) through the fixing hole (36), and the second pull block (53) is connected to the second contouring module (32) and the third contouring module (33) through the fixing hole (36).

8. A bearing disassembly fixture according to claim 1, characterized in that, The thickness of the contour tooth unit (3) is not less than 1.6 mm.

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