CN209875795U - Two-way seal structure of wet-type brake transaxle - Google Patents
Two-way seal structure of wet-type brake transaxle Download PDFInfo
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- CN209875795U CN209875795U CN201920613883.1U CN201920613883U CN209875795U CN 209875795 U CN209875795 U CN 209875795U CN 201920613883 U CN201920613883 U CN 201920613883U CN 209875795 U CN209875795 U CN 209875795U
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Abstract
The utility model relates to a drive axle two-way seal structure technical field, and disclose a two-way seal structure of wet-type brake drive axle, it is poor to have solved the two-way seal structure of wet-type brake drive axle in the existing market pressure resistance, the slot structure is complicated, slot size is big, the sealing member wearability is poor, short service life, dismantle inconvenient, problem with high costs, it includes the axle, the one end of axle is fixed with the oil blanket seat, and the oil storage tank is installed at the top of oil blanket seat, and the top of oil storage tank is installed the gurley ring, and the O type circle is installed at the top of gurley ring, and the seal seat circle is installed at the top of O type circle, and the bolt is installed at the top of seal seat circle, and; the utility model has the advantages of realizing the two-way sealing, working pressure resistance up to 30MPa, simple groove structure and small groove size; the sealing element is provided with a lubricating oil storage tank, so that the sealing element is very wear-resistant and has long service life; can be repeatedly disassembled and assembled, and saves cost.
Description
Technical Field
The utility model belongs to the technical field of the two-way seal structure of transaxle, specifically be a two-way seal structure of wet brake transaxle.
Background
The bidirectional rotary sealing ring commonly used in China at present mainly has two forms: one is a common bidirectional sealing rotary skeleton sealing ring, and the other is a box type bidirectional sealing rotary skeleton sealing ring.
The problems of the current structure are as follows: the common bidirectional sealing pressure-resistant rotary framework sealing ring is provided with two bidirectional lips, and the interference magnitude between the lips and a shaft is large, so that the right-side lip is easy to damage or turn over during assembly; although the box-type bidirectional sealing rotary framework sealing ring is better assembled than the common sealing ring, because the interference magnitude of the inner ring of the box-type sealing ring and a shaft is larger, when a bridge needs to be maintained and disassembled, the inner ring and the outer ring of the box-type sealing ring can be separated and damaged, so that a new sealing ring needs to be replaced when the bridge needs to be maintained and disassembled, and the loss is larger; the pressure in the lubricating oil cavity of the wet brake can be unstable in the running process of the whole machine, the normal pressure is 0.03-0.05MPa, occasionally the normal pressure reaches 0.07MPa, and the problem of sealing ring failure can often occur because the maximum pressure resistance of two sealing rings is not more than 0.05 MPa.
SUMMERY OF THE UTILITY MODEL
To the above situation, for overcoming prior art's defect, the utility model provides a two-way seal structure of wet-type brake drive axle, the effectual wet-type brake drive axle two-way seal structure who has solved on the existing market pressure-resistant ability poor, groove structure is complicated, and the slot size is big, sealing member wear resistance is poor, and life is short, dismantle inconvenient, problem with high costs.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a two-way seal structure of wet-type brake transaxle, including the axle, the one end of axle is fixed with the oil blanket seat, the oil storage tank is installed at the top of oil blanket seat, the check circle is installed at the top of oil storage tank, O type circle is installed at the top of check circle, the sealed seat circle is installed at the top of O type circle, the bolt is installed at the top of sealed seat circle, stopper lubricating oil chamber is installed at the top of bolt, the side-mounting of stopper lubricating oil chamber has stopper friction disc group, transaxle hub reduction gear lubricating oil chamber is installed to the bottom position of stopper friction disc group, wet brake assembly is installed to the top position of stopper friction disc group, transaxle hub reduction gear assembly is installed to.
Preferably, the outer circle surface of the oil seal seat is processed by hardening, the surface of the oil seal seat is processed by a polishing process, and the oil seal seat is fixed on the axle shaft in an interference fit manner.
Preferably, the bottom of the lattice ring is installed in the sealing seat ring, and one side of the lattice ring is in threaded connection with one side of the drive axle wheel-side reducer assembly through a bolt.
Preferably, an oil transfer hole is formed in the surface of the oil storage tank, and lubricating oil is filled in the oil storage tank.
Preferably, the wet brake assembly and the oil seal seat are both fixed on the axle shaft, and the bottom of the wet brake assembly is provided with the spring set.
Preferably, a gurley ring is arranged between the drive axle hub reduction gear assembly and the wet brake assembly, and a drive axle hub reduction gear lubricating oil cavity is fixed on one side of the bottom of the drive axle hub reduction gear assembly.
Preferably, the surface of the seal race is connected with the surface of the drive axle hub reduction gear assembly.
Preferably, the inner cavity of the brake lubricating oil cavity is infused with high-pressure hydraulic oil, and the normal pressure of the brake lubricating oil cavity is 0.03-0.05 MPa.
Preferably, heavy-load gear oil is filled in the lubricating oil cavity of the drive axle hub reduction gear, and the lubricating oil cavity of the drive axle hub reduction gear is separated from the lubricating oil cavity of the brake through a Geiley ring.
Preferably, the O-ring is a circular object with an O-ring shape, and the O-ring is located in the middle of the gurley ring and the sealing seat ring.
Compared with the prior art, the beneficial effects of the utility model are that:
1) during operation, the drive axle hub reduction gear assembly and the Gellen ring rotate together, the oil seal seat and the wet brake assembly are fixed on the axle shaft and do not rotate, and the drive axle hub reduction gear assembly is braked by the friction force generated by the brake friction plate set during braking, so that the wet brake drive axle bidirectional sealing structure is ensured to have higher pressure bearing capacity;
2) the grating ring is made of special wear-resistant materials and is tightly held on the oil seal seat through the O-shaped ring serving as the elastic force application element, the oil storage groove for providing lubrication is formed in the contact surface of the grating ring and the oil seal seat, the friction force reduction of the two-way sealing structure of the wet braking drive axle is guaranteed, the service life of the grating ring is prolonged, and meanwhile, the grating ring is convenient to disassemble.
Drawings
The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a partially enlarged schematic view of A in FIG. 1 according to the present invention;
fig. 3 is a partially enlarged structural diagram of B in fig. 1 according to the present invention;
in the figure: 1. a bridge shaft; 2. an oil seal seat; 3. a Gray circle; 4. sealing the seat ring; 5. a bolt; 6. a wet brake assembly; 7. a brake pad set; 8. a drive axle wheel-side reducer assembly; 9. a brake lubricating oil cavity; 10. a lubricating oil cavity of the wheel-side reducer of the drive axle; 11. an O-shaped ring; 12. and an oil storage tank.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Embodiment one, given by fig. 1, fig. 2 and fig. 3, the utility model discloses a bridge shaft 1, bridge shaft 1's one end is fixed with oil seal seat 2, oil storage tank 12 is installed at oil seal seat 2's top, the check ring 3 is installed at the top of oil storage tank 12, O type circle 11 is installed at the top of check ring 3, seal seat circle 4 is installed at the top of O type circle 11, bolt 5 is installed at seal seat circle 4's top, stopper lubricating oil cavity 9 is installed at bolt 5's top, stopper lubricating oil cavity 9's side-mounting has stopper friction disc group 7, transaxle wheel limit reduction gear lubricating oil cavity 10 is installed to stopper friction disc group 7's bottom position, wet brake assembly 6 is installed to stopper friction disc group 7's top position, transaxle wheel limit reduction gear assembly 8 is installed to one side of stopper friction disc group 7.
In the second embodiment, on the basis of the first embodiment, the outer circumferential surface of the oil seal seat 2 is hardened, the surface of the oil seal seat 2 is polished, the oil seal seat 2 is fixed on the axle shaft 1 in an interference fit manner, the roughness of the surface of a workpiece is reduced and the surface is bright due to the arrangement of the oil seal seat 2, and meanwhile, the hardness of the oil seal seat 2 is improved due to the hardening processing.
In the third embodiment, on the basis of the first embodiment, the bottom of the greige ring 3 is installed inside the seal seat ring 4, one side of the greige ring 3 is in threaded connection with one side of the drive axle wheel reduction assembly 8 through the bolt 5, and the sealing performance of the two-way sealing structure of the wet brake drive axle is improved through the arrangement of the greige ring 3.
In the fourth embodiment, on the basis of the first embodiment, the surface of the oil storage tank 12 is provided with an oil transfer hole, and the oil storage tank 12 is filled with lubricating oil, so that the two-way sealing structure of the wet brake drive axle has better wear resistance and prolongs the service life of the two-way sealing structure of the wet brake drive axle through the arrangement of the oil storage tank 12.
In the fifth embodiment, on the basis of the first embodiment, the wet brake assembly 6 and the oil seal holder 2 are both fixed on the axle shaft 1, and the spring set is installed at the bottom of the wet brake assembly 6, so that the wet brake transaxle bidirectional sealing structure can effectively perform functions of decelerating, stopping or keeping a stopped state of a moving part or a moving machine through the arrangement of the wet brake assembly 6.
Sixth embodiment, on the basis of first embodiment, install the glede ring 3 between transaxle wheel reduction gear assembly 8 and the wet brake assembly 6, and one side of transaxle wheel reduction gear assembly 8 bottom is fixed with transaxle wheel reduction gear lubricating oil chamber 10, through the setting of transaxle wheel reduction gear assembly 8 for it can satisfy the needs that whole transmission system matches.
Seventh, on the basis of the first embodiment, the surface of the seal ring 4 is connected with the surface of the drive axle wheel-side reducer assembly 8, and the sealing performance of the seal ring 4 is improved by the arrangement of the seal ring.
Eighth embodiment, on the basis of the first embodiment, the inner cavity of the brake lubricating oil cavity 9 is filled with high-pressure hydraulic oil, and the normal pressure of the brake lubricating oil cavity 9 is 0.03-0.05MPa, so that the brake lubricating oil cavity 9 can effectively store the high-pressure hydraulic oil, supply of the high-pressure hydraulic oil is realized when necessary, and the high-pressure hydraulic oil also has the functions of energy transfer, wear resistance, system lubrication, corrosion prevention, rust prevention, cooling and the like.
In the ninth embodiment, on the basis of the first embodiment, heavy-load gear oil is filled in the lubricating oil cavity 10 of the drive axle hub reduction gear, the lubricating oil cavity 10 of the drive axle hub reduction gear is separated from the lubricating oil cavity 9 of the brake through the glede ring 3, and the heavy-load gear oil can be stored in the lubricating oil cavity 10 of the drive axle hub reduction gear through the arrangement of the lubricating oil cavity 10 of the drive axle hub reduction gear, so that the important functions of lubrication, wear resistance, cooling, heat dissipation, corrosion prevention, rust prevention, washing, reduction of tooth surface impact and noise and the like are achieved.
In the tenth embodiment, on the basis of the first embodiment, the O-ring 11 is a circular object having an O-shape, and the O-ring 11 is located in the middle of the gurley ring 3 and the seal seat ring 4, so that the sealing effect is enhanced and the occurrence of poor sealing effect is reduced by the arrangement of the O-ring 11.
The working principle is as follows: when the automobile brake device works, when an automobile runs or is braked, the drive axle wheel-side reducer assembly 8 and the grating ring 3 rotate together, the oil seal seat 2 and the wet brake assembly 6 are fixed on the axle shaft 1 and do not rotate, the drive axle wheel-side reducer assembly 8 is braked through friction force generated by the brake friction plate group 7 during braking, the grating ring 3 is used for separating heavy-load gear oil in a drive axle wheel-side reducer lubricating oil cavity 10 from high-pressure hydraulic oil in a brake lubricating oil cavity 9, the grating ring 3 is made of special wear-resistant materials and is tightly held on the oil seal seat 2 through an O-shaped ring 11 serving as an elastic force application element, an oil storage groove 12 for providing lubrication is formed in the contact surface of the grating ring 3 and the oil seal seat 2, friction force is reduced, and the service life of the grating ring 3 is prolonged.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides a two-way seal structure of wet brake transaxle, includes axle (1), its characterized in that: the one end of axle (1) is fixed with oil seal seat (2), oil storage tank (12) are installed at the top of oil seal seat (2), check circle (3) are installed at the top of oil storage tank (12), O type circle (11) are installed at the top of check circle (3), sealed seat circle (4) are installed at the top of O type circle (11), bolt (5) are installed at the top of sealed seat circle (4), brake lubricating oil chamber (9) are installed at the top of bolt (5), brake friction disc group (7) are installed to the side-mounting of brake lubricating oil chamber (9), transaxle hub reduction gear lubricating oil chamber (10) are installed to the bottom position of brake friction disc group (7), wet brake assembly (6) are installed to the top position of brake friction disc group (7), transaxle hub reduction assembly (8) are installed to one side of brake friction disc group (7).
2. The bidirectional sealing structure of a wet brake transaxle of claim 1, wherein: the outer circle surface of the oil seal seat (2) is processed through hardening, the surface of the oil seal seat (2) is processed through a polishing process, and the oil seal seat (2) is fixed on the axle shaft (1) in an interference fit mode.
3. The bidirectional sealing structure of a wet brake transaxle of claim 1, wherein: the bottom of the checked ring (3) is installed in the sealing seat ring (4), and one side of the checked ring (3) is in threaded connection with one side of the drive axle wheel-side reducer assembly (8) through the bolt (5).
4. The bidirectional sealing structure of a wet brake transaxle of claim 1, wherein: an oil transmission hole is formed in the surface of the oil storage tank (12), and lubricating oil is filled in the oil storage tank (12).
5. The bidirectional sealing structure of a wet brake transaxle of claim 1, wherein: the wet brake assembly (6) and the oil seal seat (2) are fixed on the axle shaft (1), and a spring set is installed at the bottom of the wet brake assembly (6).
6. The bidirectional sealing structure of a wet brake transaxle of claim 1, wherein: a gurley ring (3) is arranged between the drive axle hub reduction gear assembly (8) and the wet brake assembly (6), and a drive axle hub reduction gear lubricating oil cavity (10) is fixed on one side of the bottom of the drive axle hub reduction gear assembly (8).
7. The bidirectional sealing structure of a wet brake transaxle of claim 1, wherein: the surface of the sealing seat ring (4) is connected with the surface of a drive axle wheel-side reducer assembly (8).
8. The bidirectional sealing structure of a wet brake transaxle of claim 1, wherein: the inner cavity of the brake lubricating oil cavity (9) is filled with high-pressure hydraulic oil in an infusion mode, and the normal pressure of the brake lubricating oil cavity (9) is 0.03-0.05 MPa.
9. The bidirectional sealing structure of a wet brake transaxle of claim 1, wherein: heavy-load gear oil is filled in the lubricating oil cavity (10) of the drive axle hub reduction gear, and the lubricating oil cavity (10) of the drive axle hub reduction gear is separated from the lubricating oil cavity (9) of the brake through the Geilex ring (3).
10. The bidirectional sealing structure of a wet brake transaxle of claim 1, wherein: the O-shaped ring (11) is a circular object in the shape of an O, and the O-shaped ring (11) is positioned in the middle of the Gray ring (3) and the sealing seat ring (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920613883.1U CN209875795U (en) | 2019-04-30 | 2019-04-30 | Two-way seal structure of wet-type brake transaxle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920613883.1U CN209875795U (en) | 2019-04-30 | 2019-04-30 | Two-way seal structure of wet-type brake transaxle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209875795U true CN209875795U (en) | 2019-12-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920613883.1U Active CN209875795U (en) | 2019-04-30 | 2019-04-30 | Two-way seal structure of wet-type brake transaxle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209875795U (en) |
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2019
- 2019-04-30 CN CN201920613883.1U patent/CN209875795U/en active Active
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