Disassembling tool for driving axle main speed reducer driving bevel gear supporting bearing
By designing a combination tool of support frame and sleeve, the problem of difficult disassembly of active bevel gear bearing was solved, which simplified operation, reduced machining accuracy requirements, and reduced manufacturing costs.
Patent Information
- Application Number
- CN202422714951.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-10-24
- Estimated Expiration
- 2034-11-07
AI Technical Summary
In the existing technology, the bearings of the driving bevel gear are difficult to disassemble, and the precision requirements for machining the disassembly holes on the main reduction housing are high, which increases manufacturing costs and operational difficulty.
A tool for removing the supporting bearing of the active bevel gear of the final reducer of a driving axle is designed. It includes a support frame and a sleeve. By adjusting the relative position of the support plate, the push rod is aligned with the bearing removal hole. The impact force is transmitted by the sleeve to achieve smooth separation of the bearing, reducing the difficulty of disassembly and the processing accuracy requirements.
It effectively reduces the difficulty of disassembling the active bevel gear bearing, reduces the machining accuracy requirements of the bearing disassembly hole, simplifies the operation process, and reduces manufacturing costs.
Smart Images
Figure CN223466239U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of vehicle disassembly and assembly equipment, in particular to a tool for disassembling a supporting bearing of an active bevel gear of a driving axle main reducer. Background Art
[0002] The drive axle is a mechanism at the end of the drivetrain that changes the speed and torque from the transmission and transmits them to the drive wheels. A drive axle generally consists of a final drive unit, differential, wheel drive system, and drive axle housing. Steering drive axles also have constant velocity joints. Furthermore, the drive axle must withstand vertical, longitudinal, and lateral forces acting between the road surface and the vehicle frame or body, as well as braking torque and reaction forces. To achieve lightweight and high transmission efficiency, currently used single-stage reduction drive axles cast the driving bevel gear bearing seat and the main reducer housing as an integral structure. When assembling the driving bevel gear, first press the outer ring of the bearing into the main reducer housing. Then, install the driving bevel gear, which has been pressed into the inner ring of the bearing at the near-tooth end, into the main reducer housing. Finally, press the inner ring of the bearing at the far-tooth end onto the gear shaft of the driving bevel gear.
[0003] When disassembling the active bevel gear, since a pair of supporting bearings are in a "back-to-back" position, i.e., small end to small end, the bearing seat and the main reducer housing are cast into an integral structure. This structure increases the difficulty of disassembling the active bevel gear. In order to solve the problem of bearing disassembly difficulties, two threaded holes are machined on the assembly end face of the main reducer housing bearing to disassemble the outer ring of the bearing near the tooth end (such as the attached Figure 5 This structure increases the difficulty of machining the main reducer housing and places certain requirements on the position accuracy of the bearing removal holes, thereby increasing the manufacturing cost of the main reducer housing. Utility Model Content
[0004] In order to solve the difficulty in disassembling the tooth end bearing of the active bevel gear and reduce the problem of high precision and difficulty in operating the disassembly hole processing on the main reduction housing, the utility model provides a tool for disassembling the supporting bearing of the active bevel gear of the main reduction gear of the driving axle.
[0005] The utility model is realized through the following technical solutions:
[0006] A tool for removing the supporting bearing of the active bevel gear of the main reducer of a driving axle, comprising a support frame and a sleeve, wherein the support frame comprises a main support plate and a secondary support plate, and the secondary support plate is mounted on the main support plate by a locking member; one end of the main support plate is provided with a main push rod extending vertically downward, and the other end is mounted with the secondary support plate, and the secondary support plate is provided with a secondary push rod extending vertically downward; the sleeve and the main support plate are a split structure, and the two are used in combination to transmit the impact force to the outer ring of the near-tooth-end bearing of the active bevel gear, thereby realizing the removal of the tooth-end bearing.
[0007] According to the position of the two bearing dismounting holes, the position of the auxiliary support plate relative to the main support plate is adjusted in advance, and the two support plates are fixed through the locking member, so that the main push rod and the auxiliary push rod correspond to the two bearing dismounting holes respectively, the sleeve is knocked, the tooth end bearing is stably separated from the main reduction shell, and the inclination and jamming caused by uneven force of the tooth end bearing are avoided, the dismounting difficulty of the driving bevel gear tooth end bearing is reduced, and the machining precision requirement of the two bearing dismounting holes is reduced.
[0008] Further improvement of the utility model still has, the locking member is bolt, the main support plate is provided with locking hole that allows bolt to pass through, the diameter of locking hole is greater than the screw rod diameter of bolt and is smaller than the diameter of nut. Because the diameter of locking hole is greater than the screw rod diameter of bolt and is smaller than the diameter of nut, the radial position of bolt in locking hole is adjusted, so that the relative position of auxiliary support plate and main support plate is fixed after being adjusted by nut, and the adaptive adjustment of the position of two push rods is realized.
[0009] Further improvement of the utility model still has, the locking hole is counterbore structure, the diameter of the countersunk hole part of counterbore is greater than the diameter of nut of bolt, and the diameter of the through hole part of counterbore is greater than the screw rod diameter of bolt and is smaller than the diameter of nut. The nut part can be buried in the countersunk hole, and the radial adjustment of bolt in counterbore is realized.
[0010] Further improvement of the utility model still has, the auxiliary support plate is provided with threaded blind hole matched with bolt. The relative position adjustment and fixing of main support plate and auxiliary support plate by bolt are realized through the cooperation of threaded blind hole and counterbore.
[0011] Further improvement of the utility model still has, the bottom surface of main push rod is flush with the bottom surface of auxiliary push rod. It is helpful to guarantee synchronous contact with tooth end bearing.
[0012] Further improvement of the utility model still has, the sleeve and the support plate are connected in a split type.
[0013] Further improvement of the utility model still has, the main support plate (11) is provided with sleeve joint hole (16) allowing driving bevel gear (6) to pass through, and the sleeve (2) is arranged on the side of main support plate (11) away from main push rod (14), and the inner diameter of sleeve (2) is greater than the diameter of sleeve joint hole (16).
[0014] Further improvement of the utility model still has, the end of sleeve (2) away from support plate is closed structure.
[0015] Further improvement of the utility model still has, the outer side surface of sleeve is cylindrical as a whole. It is helpful to realize the installation of sleeve on main support plate and guarantee the pushing strength of support frame.
[0016] The further improvement of the utility model also has that the above-mentioned main support plate is integrally in L-shaped structure.
[0017] The further improvement of the utility model also has that the above-mentioned main support plate is integrally in L-shaped structure.
[0018] From the above technical scheme, the beneficial effects of the utility model are that according to the positions of the two bearing dismounting holes, the position of the auxiliary support plate relative to the main support plate is adjusted in advance, and the two support plates are fixed through the locking member, so that the main push rod and the auxiliary push rod correspond to the two bearing dismounting holes respectively, the sleeve is knocked, the stable separation of the tooth end bearing and the main reduction shell is completed, the situation that the tooth end bearing is tilted and stuck due to uneven force is avoided, and the dismounting difficulty of the driving bevel gear tooth end bearing and the machining precision requirement for the two bearing dismounting holes are reduced with the aid of the dismounting tool. BRIEF DESCRIPTION OF DRAWINGS
[0019] In order to more clearly illustrate the technical scheme of the utility model, the drawings needed to be used in the description will be simply introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained according to the drawings for the ordinary skilled in the art without paying creative labor.
[0020] Figure 1 It is the structural schematic diagram of the specific embodiment of the utility model.
[0021] Figure 2 It is the first schematic diagram of the support frame of the specific embodiment of the utility model.
[0022] Figure 3 It is the second schematic diagram of the support frame of the specific embodiment of the utility model.
[0023] Figure 4 It is the sleeve schematic diagram of the specific embodiment of the utility model.
[0024] Figure 5 It is the driving bevel gear assembly schematic diagram of the specific embodiment of the utility model.
[0025] In the drawings, 1, support frame;11, main support plate;12, locking hole;13, auxiliary support plate;14, main push rod;15, auxiliary push rod;16, sleeve joint hole;2, sleeve;3, locking member;4, main reduction shell;5, tooth end bearing;6, driving bevel gear;7, bearing dismounting hole. SPECIFIC EMBODIMENT
[0026] In order to make the purpose, characteristics and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be described clearly and completely in combination with the drawings in the specific embodiments below. Obviously, the embodiments described below are only some of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the patent, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the patent protection.
[0027] As Figure 1 shown, a kind of driving axle main reducer driving bevel gear support bearing dismounting tool, including support frame 1 and sleeve 2, the support frame 1 includes main support plate 11 and vice support plate 13, the main support plate 11 is overall L-shaped structure, the vice support plate 13 is overall L-shaped structure, and vice support plate 13 is set to the lower of main support plate 11;One side of main support plate 11 is horizontally arranged, the other side is vertical state, and main push rod 14 is installed on the vertical edge of support plate;The vertical edge of the structure of vice support plate 13 is also installed with vice push rod 15.The bottom surface of main push rod 14 is flush with the bottom surface of vice push rod 15;Help to guarantee the synchronous contact with gear end bearing 5.
[0028] As Figures 1-2 shown, the vice support plate 13 is installed on the main support plate 11 by locking member 3;Locking member 3 is bolt, locking hole 12 allowing bolt to penetrate is set on the main support plate 11, and locking hole 12 is counterbore structure;The diameter of the countersunk hole portion of counterbore is greater than the diameter of the nut of bolt, and the diameter of the through hole portion of counterbore is greater than the diameter of the screw rod of bolt and less than the diameter of the nut. The nut portion can be buried in the countersunk hole, and the radial adjustment of bolt in counterbore is realized. Threaded blind hole matched with bolt is provided on vice support plate 13. By the cooperation of threaded blind hole and counterbore, the relative position adjustment and fixing of main support plate and vice support plate by bolt are realized. By adjusting the radial position of bolt in locking hole 12, the relative position of vice support plate 13 and main support plate 11 is adjusted, and the adaptive adjustment of the position of two push rods is realized.
[0029] As Figures 1-4As shown, the sleeve 2 is mounted on the main support plate 11 in a split manner; the main support plate 11 is provided with a sleeve hole 16 allowing the shaft end of the driving bevel gear 6 to pass through, the sleeve 2 is arranged on the side of the main support plate 11 away from the main push rod 14, the inner diameter of the sleeve 2 is larger than the diameter of the sleeve hole 16, and the sleeve 2 abuts against the outer ring part of the sleeve hole 16 to realize the avoidance of the driving bevel gear 6, the impact force is conducted to the main support plate 11 and the auxiliary support plate 13 by knocking the sleeve 2, and the pushing strength of the support frame 1 is ensured, and the jamming caused by the inclined force of the tooth end bearing 5 is prevented.
[0030] As shown in the figure, Figure 5 As shown, the bearing dismounting hole 7 can be processed into a light hole capable of cooperating with the push rod.
[0031] In summary, the use principle of the device is that in order to improve the dismounting convenience of the tooth end bearing 5, the two bearing dismounting holes 7 need to be arranged on the outer side of the tooth end bearing 5 in an axial symmetry manner, so that the machining precision is increased, and therefore the relative position adjustment of the main support plate 11 and the auxiliary support plate 13 is realized to realize the cooperation of the main push rod 14 and the auxiliary push rod 15 with the two bearing dismounting holes 7.
[0032] The utility model discloses a kind of driving axle main reducer driving bevel gear support bearing dismounting tools, according to the position of two bearing dismounting holes, the position of auxiliary support plate relative to main support plate is adjusted in advance, and two support plates are fixed by locking member, so that main push rod and auxiliary push rod correspond with two bearing dismounting holes respectively, knock sleeve, complete tooth end bearing and the stable separation of main reduction shell, avoid the jamming situation caused by the uneven force of tooth end bearing, with the dismounting tool of the case, the difficulty of driving bevel gear tooth end bearing dismounting and the machining precision requirement of two bearing dismounting holes are reduced.
[0033] Each embodiment in the specification is described in a progressive manner, and each embodiment focuses on the difference from other embodiments.
[0034] In the specification, the claims and the above drawings, the terms "upper", "lower", "outer side" and "inner side" are used to distinguish the relative relationship in position, and do not have to be given a nature. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the utility model described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.
[0035] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A driving axle main reducer driving bevel gear support bearing dismounting tool, comprising a support frame (1) and a sleeve (2), characterized in that, The support frame (1) comprises a main support plate (11) and a sub support plate (13), the sub support plate (13) is installed on the main support plate (11) through a locking piece (3); one end of the main support plate (11) is provided with a main push rod (14) extending vertically downward, the other end is provided with the sub support plate (13), the sub support plate (13) is provided with a sub push rod (15) extending vertically downward; the main support plate (11) is connected with a sleeve (2) in a split mode.
2. A dismounting tool for a driving axle main reducer driving bevel gear support bearing according to claim 1, characterized in that, The locking piece (3) is a bolt, the main support plate (11) is provided with a locking hole (12) allowing the bolt to pass through, and the diameter of the locking hole (12) is larger than that of the bolt.
3. A dismounting tool for a driving axle main reducer driving bevel gear support bearing according to claim 2, characterized in that, The locking hole (12) is a counterbore structure.
4. A dismounting tool for a driving axle main reducer driving bevel gear support bearing according to claim 3, characterized in that, The sub support plate (13) is provided with a threaded blind hole matched with the bolt.
5. A dismounting tool for a driving axle main reducer driving bevel gear support bearing according to any one of claims 1 to 3, characterized in that, The bottom surface of the main push rod (14) is flush with that of the sub push rod (15).
6. A dismounting tool for a driving axle main reducer driving bevel gear support bearing according to claim 4, characterized in that, The main support plate (11) is provided with a sleeving hole (16) allowing the driving bevel gear (6) to pass through; the sleeve (2) is arranged on the side of the main support plate (11) away from the main push rod (14), and the inner diameter of the sleeve (2) is larger than the diameter of the sleeving hole (16).
7. A dismounting tool for a driving axle main reducer driving bevel gear support bearing according to claim 5, characterized in that, The end of the sleeve (2) away from the support plate is a closed structure.
8. A dismounting tool for a driving axle main reducer driving bevel gear support bearing according to claim 6, characterized in that, The outer side of the sleeve (2) is in a cylindrical shape.
9. The tool as set forth in claim 4, characterized in that, The main support plate (11) is in an L-shaped structure as a whole.
10. A dismounting tool for a driving axle main reducer driving bevel gear support bearing according to claim 9, characterized in that, The sub support plate (13) is in an L-shaped structure as a whole, and the sub support plate (13) is arranged below the main support plate (11).