CN210454340U - Promote bearing structure and hub reduction gear of hub reduction gear shell rigidity - Google Patents
Promote bearing structure and hub reduction gear of hub reduction gear shell rigidity Download PDFInfo
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- CN210454340U CN210454340U CN201921306505.5U CN201921306505U CN210454340U CN 210454340 U CN210454340 U CN 210454340U CN 201921306505 U CN201921306505 U CN 201921306505U CN 210454340 U CN210454340 U CN 210454340U
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- reduction gear
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- wheel
- hub reduction
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Abstract
The utility model belongs to the technical field of the car, a promote bearing structure and wheel reduction gear of wheel reduction gear shell rigidity is disclosed, the utility model provides a promote bearing structure of wheel reduction gear shell rigidity includes wheel reduction gear shell, brake drum, rim and wheel hub, wheel hub's at least part of tip stretches into in the wheel reduction gear shell, wheel hub's tip is equipped with a plurality of support claws, support the claw and can support wheel reduction gear shell. The utility model has the advantages that: through increasing the support claw at wheel hub terminal surface, compare in original no bearing structure's hub reduction gear shell, can effectively play the effect of support to hub reduction gear shell, and then promoted hub reduction gear shell's reliability, reduced hub reduction gear shell fracture inefficacy's emergence.
Description
Technical Field
The utility model relates to the field of automotive technology, especially, relate to a promote bearing structure and wheel reduction gear of wheel reduction gear shell rigidity.
Background
The wheel reduction gear is one of the components of the automobile axle and can play a role in reducing the rotating speed transmitted by the main reduction gear and increasing the torque of the gear end. The hub reduction gear shell is a supporting part on the hub reduction gear, on one hand, the hub reduction gear shell plays a role in loading all other parts of the hub reduction gear, and on the other hand, the hub reduction gear shell plays a role in connecting a hub half shaft and a hub. The common connecting structure of the hub reduction gear shell and the hub comprises the following structures:
patent document 1(CN208885793U) discloses a locking mechanism of a hub reduction gear, which mainly solves the problems that the transition part between an external thread and a spline is difficult to process, the axial space utilization rate is low and the axial arrangement of the hub reduction gear is affected in the existing locking mode. It is mainly characterized in that: the device comprises a bearing sleeve, a speed reducer gear ring, a hub bearing and a screw rod; the gear ring of the speed reducer and the hub bearing are sequentially arranged at the end part of the excircle of the bearing sleeve; the bearing sleeve is provided with an internal thread, and the screw is matched with the internal thread to lock and install the gear ring of the speed reducer on the bearing sleeve.
Patent document 2(CN206017579U) discloses a hub reduction gear assembly, including the end cover, the planet wheel axle, first bearing, the ring gear, the axle housing assembly, keep off the dust hood and brake shoe and assembly thereof, end cover one side is passed through the bolt and is connected with the planet wheel, planet wheel bottom and kingpin are connected, the kingpin bottom is connected with first sun gear, first sun gear bottom is connected with the second sun gear, end cover bottom one side is equipped with the hub reduction gear shell, hub reduction gear shell one side is connected with the ring gear, first sun gear one side is equipped with first bearing, first bearing one side is equipped with wheel hub, the wheel hub top is equipped with the brake drum.
Patent document 3(CN103434339B) discloses a drive axle assembly and a vehicle including the same, the drive axle assembly includes a drive axle, and a hub reduction gear and a hub which are respectively mounted on the drive axle, the hub is mounted on the drive axle through an inner hub bearing and an outer hub bearing, and an outer hub oil seal is provided outside the outer hub bearing, wherein the drive axle assembly includes an inner hub oil seal provided between the inner hub bearing and the outer hub bearing.
In the structure, the hub reduction gear shell adopts a long circular ring structure, the wall thickness is thin, effective rigid support is lacked, and the hub reduction gear shell is often failed due to the breakage of the middle circular ring position.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a promote bearing structure and wheel reduction gear of wheel reduction gear shell rigidity to solve current wheel reduction gear shell and all adopt the long circle ring structure, the wall thickness is thinner, and lacks the problem that effectual rigidity supported.
To achieve the purpose, the utility model adopts the following technical proposal:
a supporting structure for improving rigidity of a hub reduction gear shell comprises the hub reduction gear shell, a brake drum, a rim and a hub, wherein at least part of the end of the hub extends into the hub reduction gear shell, a plurality of supporting claws are arranged at the end of the hub, and the supporting claws can support the hub reduction gear shell.
Preferably, the number of the supporting claws is 5.
Preferably, the support claw is attached to an outer edge of an end portion of the hub.
Preferably, the plurality of support claws are evenly distributed in the circumferential direction on the outer edge of the end of the hub.
Preferably, the support claw is integrally formed with the hub.
Preferably, the support claw is composed of an arc-shaped plate attached to the inner wall of the hub reduction gear shell and a rib plate connected to the inner side of the arc-shaped plate, and the rib plate is used for supporting and reinforcing the arc-shaped plate.
Preferably, the arc-shaped plate and the end part of the hub form a smooth continuous surface.
Preferably, the rib plate is connected to the middle of the arc-shaped plate.
Preferably, the front end of the hub reduction gear shell penetrates into the rim, and the rear ends of the hub, the brake drum and the hub reduction gear shell are fixed on the rim through bolts and nuts in a matched mode.
A hub reduction gear comprises the supporting structure for improving the rigidity of the hub reduction gear shell.
The utility model has the advantages that: through increasing the support claw at wheel hub terminal surface, compare in original no bearing structure's hub reduction gear shell, can effectively play the effect of support to hub reduction gear shell, and then promoted hub reduction gear shell's reliability, reduced hub reduction gear shell fracture inefficacy's emergence.
Drawings
Fig. 1 is a schematic structural view of a wheel reduction unit including a support structure for improving rigidity of a wheel reduction unit case according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a wheel hub including a support structure for increasing the stiffness of a wheel reduction housing according to an embodiment of the present invention;
figure 3 is an E-E cross-sectional view of a hub including a support structure for increasing the stiffness of a hub reduction gear shell according to an embodiment of the present invention.
In the figure:
1. a bolt; 2. a brake drum; 3. a hub; 4. a first O-ring; 5. a second O-ring; 6. a hub reduction gear case; 7. a rim; 8. a nut; 9. a mating surface; 10. and supporting claws.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element 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. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
As shown in the accompanying drawing 1, the utility model provides a promote bearing structure of hub reduction gear shell rigidity, including hub reduction gear shell 6, brake drum 2, rim 7 and wheel hub 3, in the front end of hub reduction gear shell 6 penetrated rim 7, wheel hub 3, brake drum 2 and hub reduction gear shell 6's rear end all fixed on rim 7 through bolt 1 and the cooperation of nut 8. Specifically, ten bolts 1 evenly distributed on the rim 7 in the circumferential direction are used to fix the hub 3, the brake drum 2 and the hub reduction gear case 6, and each bolt 1 penetrates through the hub 3, the hub reduction gear case 6, the brake drum 2 and the rim 7 in sequence and is fastened by a nut 8.
Further, at least part of the end part of the hub 3 extends into the hub reduction gear shell 6, a matching surface 9 is formed between the inner wall of the hub reduction gear shell 6 and the periphery of the hub 3, two coaxial rectangular ring grooves are formed in the hub 3 at the matching surface 9 and are formed by turning with a turning tool, and a first O-shaped ring 4 and a second O-shaped ring 5 which are used for sealing the matching surface 9 are respectively arranged in the two coaxial rectangular ring grooves.
Preferably, the first O-ring 4 and the second O-ring 5 are made of nitrile rubber, the nitrile rubber is formed by copolymerizing acrylonitrile and butadiene, the acrylonitrile content is 18% -50%, wherein the higher the acrylonitrile content is, the better the resistance to petroleum oil hydrocarbon fuel oil is, but the low temperature performance is poor, and the general use temperature range is-25-100 ℃. The nitrile rubber has good oil resistance, water resistance, solvent resistance and high-pressure oil resistance, has good compression deflection, wear resistance and elongation force, and is a rubber material which has the widest application and the lowest cost on the O-shaped ring at present.
As shown in fig. 2 to 3, the end of the hub 3 is provided with five support claws 10 capable of supporting the hub reduction gear case 6, and the support claws 10 are attached to the outer edge of the end of the hub 3. In order to facilitate manufacturing and ensure the structural strength of the supporting claws 10, the supporting claws 10 and the hub 3 are formed by forging and pressing integrally.
The forging and pressing integrated forming technology is a process of firstly injecting molten metal into a die cavity for forming by a pressure casting method and then immediately carrying out closed die forging and pressing on solidified metal in the same set of die. The technology combines casting and forging into a whole, has the dual characteristics of casting and forging, can form parts with complex shapes by pressure casting, can perform forced feeding and tissue compaction on solidified metal by closed die forging, and improves the tissue density and mechanical property of the parts. In addition, the casting and forging of the technology are finished in the same set of die without reheating and trimming, and the technology also has the advantages of less production process, less equipment and die investment, energy conservation, material conservation and the like. By adopting the forging and pressing integrated forming technology, the processing efficiency of the supporting claws 10 can be improved, and the structural strength of the connection between the supporting claws 10 and the hub 3 can be enhanced.
In order to better support the hub reduction gear shell 6, the support claw 10 is composed of an arc-shaped plate attached to the inner wall of the hub reduction gear shell 6 and a rib plate connected to the inner side of the arc-shaped plate, wherein the rib plate is used for supporting and reinforcing the arc-shaped plate, and the rib plate is connected to the middle of the arc-shaped plate, so that the torque borne by the rib plate is smaller.
In other embodiments, the arc plate and the end of the hub 3 may be welded together, and triangular ribs are welded between the arc plate and the hub 3 to reinforce the arc plate. On one hand, compared with a forging and pressing integrated forming technology, the welding connection has lower requirements on production equipment; on the other hand, it is convenient to adjust the number and arrangement positions of the support claws 10 depending on the actual situation.
Further, in the present embodiment, in order to make the supporting force distribution of the supporting claws 10 to the side reduction gear case 6 uniform, five supporting claws 10 are uniformly distributed in the circumferential direction at the outer edge of the end portion of the hub 3. Meanwhile, the connecting part of the arc-shaped plate and the end part of the hub 3 is designed to be provided with a smooth and continuous surface, so that the part can be prevented from being easily broken due to stress concentration, and the structure with the continuous transition surface is simpler when a casting mold is manufactured.
In conclusion, the hub reduction gear integrating the support structure for improving the rigidity of the hub reduction gear shell has the advantages that the support claws 10 are additionally arranged on the end face of the hub 3, so that the hub reduction gear shell 6 can be effectively supported compared with the original hub reduction gear shell without the support structure, the reliability of the hub reduction gear shell 6 is improved, and the occurrence of fracture failure of the hub reduction gear shell 6 is reduced.
It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, rearrangements and substitutions will now occur to those skilled in the art without departing from the scope of the invention. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. A supporting structure for improving the rigidity of a hub reduction gear shell comprises the hub reduction gear shell (6), a brake drum (2), a rim (7) and a hub (3), and is characterized in that at least part of the end of the hub (3) extends into the hub reduction gear shell (6), a plurality of supporting claws (10) are arranged at the end of the hub (3), and the supporting claws (10) can support the hub reduction gear shell (6).
2. A rigid support structure of a hoist wheel reduction cage according to claim 1, characterized in that the number of the support claws (10) is 5.
3. A rigid support structure of a hoist wheel reduction cage according to claim 1, characterized in that the support claw (10) is attached to the outer edge of the end of the hub (3).
4. A rigid support structure of a hoist pulley reducer case according to claim 1, characterized in that a plurality of the support claws (10) are evenly distributed in the circumferential direction at the outer edge of the end of the hub (3).
5. A rigid support structure of a hoist wheel reduction cage according to claim 1, characterized in that the support claw (10) is formed integrally with the hub (3).
6. The rigid support structure of the hub reduction gear shell according to claim 1, wherein the support claw (10) is composed of an arc-shaped plate attached to the inner wall of the hub reduction gear shell (6) and a rib plate connected to the inner side of the arc-shaped plate, and the rib plate is used for supporting and reinforcing the arc-shaped plate.
7. A rigid support structure of a hoisting hub gear box according to claim 6, characterized in that the arc-shaped plates form a smooth continuous surface with the end of the hub (3).
8. The rigid shell support structure of claim 6, wherein the cross brace is attached to a middle portion of the arcuate plate.
9. A rigid supporting structure for a hub reduction gear shell according to claim 1, wherein the front end of the hub reduction gear shell (6) penetrates into the rim (7), and the hub (3), the brake drum (2) and the rear end of the hub reduction gear shell (6) are fixed on the rim (7) through bolts (1) and nuts (8) in a matching manner.
10. A wheel reduction unit comprising a support structure according to any one of claims 1 to 9 for increasing the rigidity of the wheel reduction unit housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921306505.5U CN210454340U (en) | 2019-08-13 | 2019-08-13 | Promote bearing structure and hub reduction gear of hub reduction gear shell rigidity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921306505.5U CN210454340U (en) | 2019-08-13 | 2019-08-13 | Promote bearing structure and hub reduction gear of hub reduction gear shell rigidity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210454340U true CN210454340U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921306505.5U Active CN210454340U (en) | 2019-08-13 | 2019-08-13 | Promote bearing structure and hub reduction gear of hub reduction gear shell rigidity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210454340U (en) |
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- 2019-08-13 CN CN201921306505.5U patent/CN210454340U/en active Active
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