CN115717649A - Wet brake hub reduction gear assembly for engineering machinery - Google Patents
Wet brake hub reduction gear assembly for engineering machinery Download PDFInfo
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- CN115717649A CN115717649A CN202211621235.3A CN202211621235A CN115717649A CN 115717649 A CN115717649 A CN 115717649A CN 202211621235 A CN202211621235 A CN 202211621235A CN 115717649 A CN115717649 A CN 115717649A
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- brake
- support shaft
- reduction gear
- hub reduction
- piston
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Abstract
The invention discloses a wet brake wheel-side reducer assembly for engineering machinery, which comprises a support shaft, wherein the support shaft is of a hollow structure, the inner side of the support shaft is rotatably connected with a sun wheel shaft, the sun wheel shaft is provided with a sun wheel, the outer side of the support shaft is provided with a planet carrier, the planet carrier is rotatably connected with a planet wheel, the outer side of the support shaft is rotatably connected with an output gear ring, the output gear ring is meshed with the planet wheel, the outer side of the support shaft is also provided with a brake shell, the inner side of the brake shell is provided with a driving friction plate, the outer side of the output gear ring is provided with a driven friction plate matched with the driving friction plate, the inner side of the brake shell is slidably connected with a piston capable of abutting against the driving friction plate, a reset device is arranged between the piston and the support shaft, the brake shell is provided with a brake oil inlet, and the brake oil inlet drives the piston to move. The brake and the hub reduction gear are integrally designed, so that the brake and the hub reduction gear are convenient to arrange, reasonable in layout and convenient to maintain and repair.
Description
Technical Field
The invention relates to the field of engineering machinery, in particular to a wet type brake wheel-side reducer assembly for engineering machinery.
Background
The wheel reduction gear and the brake of the existing engineering machinery are arranged in a split way, and the technical scheme has the following defects: the wheel reduction gear and the brake need respective positions when being installed, the layout design is troublesome, and meanwhile, because the line arrangement is also troublesome, the brake and the drive axle share lubricating oil, the heat exchange capacity of the friction pair of the brake is low, and the friction pair of the brake is easily overheated. In addition, when the brake is maintained and repaired, the hub reduction gear needs to be disassembled, and the brake is poor in maintenance and maintainability.
Disclosure of Invention
The invention aims to provide a wet brake hub reduction gear assembly for engineering machinery, which is designed by integrating a brake and a hub reduction gear.
In order to achieve the purpose, the invention discloses a wet brake wheel-side reducer assembly for engineering machinery, which comprises a support shaft, wherein the support shaft is of a hollow structure, the inner side of the support shaft is rotatably connected with a sun wheel shaft, a sun wheel is installed on the sun wheel shaft, a planet carrier is installed on the outer side of the support shaft, a planet wheel is rotatably connected onto the planet carrier, an output gear ring is rotatably connected onto the outer side of the support shaft, the output gear ring is meshed with the planet wheel, a brake shell is further installed on the outer side of the support shaft, a driving friction plate is installed on the inner side of the brake shell, a driven friction plate matched with the driving friction plate is installed on the outer side of the output gear ring, a piston capable of abutting against the driving friction plate is slidably connected onto the inner side of the brake shell, a reset device is arranged between the piston and the support shaft, a brake oil inlet is formed in the brake shell, the brake oil inlet drives the piston to move, and an oil drain plug is arranged on the brake shell. When the brake is needed, oil is discharged from an oil inlet of the brake, the piston moves under the action of the reset device, and the driving friction plate is contacted with the driven friction plate to complete braking.
Preferably, the piston is in a step shape, the inner side wall of the brake shell is in a step shape, and the brake oil inlet is communicated with the step of the inner side wall of the brake shell. When the brake is used, the space between the step of the inner side wall of the brake shell and the step of the piston forms an oil cavity, so that the brake is convenient to process and manufacture and convenient to use.
Preferably, the brake shell is provided with a vent plug, and the vent plug corresponds to the driving friction plate and the driven friction plate in position. When in use, the influence of air pressure on the piston is reduced.
Preferably, the reset device comprises a large spring and a small spring positioned on the inner side of the large spring, and the piston is provided with a spring groove for accommodating the large spring. When the brake is used, the piston is reset by the elastic force of the large spring and the small spring, and the brake is performed by the elastic force.
Preferably, an end cover is arranged on the output gear ring, and a wear-resistant pin shaft corresponding to the sun gear shaft is arranged on the end cover. When in use, the output gear ring is convenient to mount.
Preferably, a first supporting bearing and a second supporting bearing are installed between the output gear ring and the supporting shaft, and the supporting shaft is in threaded connection with a locking nut used for fixing the first supporting bearing. When the output gear ring is used, the output gear ring and the support shaft rotate smoothly, and the use is convenient.
Preferably, a first floating oil seal is arranged between the output gear ring and the brake shell, and a second floating oil seal is arranged between the output gear ring and the support shaft. When the brake is used, the sealing performance between the output gear ring and the brake shell and between the output gear ring and the support shaft is improved.
Preferably, the input spline housing is mounted on the sun wheel shaft, the input bearing is mounted between the input spline housing and the inner side of the support shaft, and the retainer ring for fixing the hole of the input bearing is mounted on the inner side of the support shaft. When in use, the sun wheel shaft rotates smoothly.
Preferably, the supporting shaft is connected with a mounting and fixing interface in the shape of an annular bulge. When in use, the power input structure is convenient to install.
Preferably, a large braking sealing ring and a small braking sealing ring are installed between the piston and the brake housing. When the brake is used, the sealing performance between the piston and the brake shell is improved.
In conclusion, the invention has the beneficial effects that: the brake and the hub reduction gear are integrally designed, so that the brake and the hub reduction gear are convenient to arrange, reasonable in layout and convenient to maintain and repair. When the brake is needed to be braked, an oil inlet of the brake discharges oil, the piston moves under the action of the resetting device, the driving friction plate is in contact with the driven friction plate to complete braking, oil is arranged in the brake shell, and the brake friction plate lubricating oil is independent from the drive axle gear lubricating oil, so that the heat exchange efficiency is improved.
Drawings
FIG. 1 is a schematic structural diagram of a wet brake hub reduction gear assembly for construction machinery according to the present invention;
fig. 2 isbase:Sub>A schematic view of the structure of sectionbase:Sub>A-base:Sub>A in fig. 1.
In the figure: 1. a support shaft; 2. a piston; 3. braking the large sealing ring; 4. a large spring; 5. braking the small sealing ring; 6. a small spring; 7. a venting plug; 8. a driven friction plate; 9. an active friction plate; 10. a brake housing; 11. a first floating oil seal; 12. an output gear ring; 13. a bolt; 14. an end cap; 15. a planet wheel; 16. a planet carrier; 17. a wear-resistant pin shaft; 18. a sun gear shaft; 19. a planet wheel bearing; 20. locking the nut; 21. an input bearing; 22. an oil drain plug; 23. a first support bearing; 24. a second support bearing; 25. a second floating oil seal; 26. inputting a spline housing; 27. a hole retainer ring; 28. adding an oil drain plug screw; 29. a screw; 30. an oil inlet of the brake; 31. installing a fixed interface; 32. a sun gear.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in this application will be understood to be a specific case for those of ordinary skill in the art.
The invention is further described with reference to the following figures and detailed description:
as shown in fig. 1 and 2, a wet brake wheel-side reducer assembly for engineering machinery, includes a support shaft 1, specifically, the support shaft 1 is conical, the size of the input end of the support shaft 1 is larger than the size of the output end of the support shaft, the support shaft 1 is of a hollow structure, the inner side of the support shaft 1 is rotatably connected with a sun wheel shaft 18, a sun wheel 32 is installed on the sun wheel shaft 18, a planet carrier 16 is installed on the outer side of the support shaft 1, a planet wheel 15 is rotatably connected on the planet carrier 16, a planet wheel bearing 19 is installed between the planet wheel 15 and the planet carrier 16, the outer side of the support shaft 1 is rotatably connected with an output gear ring 12, the output gear ring 12 is meshed with the planet wheel 15, the outer side of the support shaft 1 is further installed with a brake housing 10 through a screw 29, a driving friction plate 9 is installed on the inner side of the brake housing 10, a driven friction plate 8 matched with the driving friction plate 9 is installed on the outer side of the output gear ring 12, a piston 2 capable of abutting against the driving friction plate 9 is slidably connected on the inner side of the brake housing 10, a reset device is arranged between the piston 2 and the support shaft 1, a brake 30 is arranged on the brake housing 10, and the brake oil inlet 30 drives the piston 2 to move. The brake housing 10 is provided with an oil drain plug 22. During the use, sun gear shaft 18 rotates, drives planet wheel 15 and output ring gear 12 and rotates, carries out power transmission, and when needs were brakied, stopper oil inlet 30 goes out oil, and piston 2 moves under resetting means's effect, and initiative friction disc 9 contacts with driven friction disc 8, accomplishes the braking, has fluid in the stopper casing 10, improves heat exchange efficiency.
Preferably, the piston 2 is in a step shape, the inner side wall of the brake housing 10 is in a step shape, and the brake oil inlet 30 is communicated with the step of the inner side wall of the brake housing 10. When the brake is used, the space between the step of the inner side wall of the brake shell 10 and the step of the piston 2 forms an oil cavity, so that the brake is convenient to process and manufacture and convenient to use.
Preferably, the brake housing 10 is provided with a ventilation plug 7, and the ventilation plug 7 corresponds to the driving friction plate 9 and the driven friction plate 8 in position. When in use, the influence of the air pressure on the piston 2 is reduced.
The reset device comprises a large spring 4 and a small spring 6 positioned on the inner side of the large spring 4, and a spring groove used for accommodating the large spring 4 is formed in the piston 2. When in use, the piston 2 is reset by the elastic force of the large spring 4 and the small spring 6, and the brake is performed by the elastic force.
An end cover 14 is installed on the output gear ring 12 through a bolt 13, and a wear-resistant pin 17 corresponding to a sun gear shaft 18 is installed on the end cover 14. The end cover 14 is provided with an oil adding and discharging screw plug 28. When in use, the output gear ring 12 is convenient to mount.
A first supporting bearing 23 and a second supporting bearing 24 are installed between the output gear ring 12 and the supporting shaft 1, and a locking nut 20 for fixing the first supporting bearing 23 is connected to the supporting shaft 1 in a threaded manner. When in use, the output gear ring 12 and the support shaft 1 rotate smoothly, and the use is convenient.
A first floating oil seal 11 is installed between the output ring gear 12 and the brake housing 10, and a second floating oil seal 25 is installed between the output ring gear 12 and the support shaft 1. When in use, the sealing performance between the output ring gear 12 and the brake housing 10 and between the output ring gear 12 and the support shaft 1 is improved.
An input spline housing 26 is attached to the sun gear shaft 18, an input bearing 21 is attached between the input spline housing 26 and the inner side of the support shaft 1, and a hole retainer 27 for fixing the input bearing 21 is attached to the inner side of the support shaft 1. In use, the sun gear shaft 18 rotates smoothly.
The supporting shaft 1 is connected with a mounting fixing interface 31 in the shape of an annular bulge. When in use, the power input structure is convenient to install.
A large braking sealing ring 3 and a small braking sealing ring 5 are arranged between the piston 2 and the brake shell 10. When in use, the sealing performance between the piston 2 and the brake housing 10 is improved.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a wet brake hub reduction gear assembly for engineering machine tool, a serial communication port, including back shaft (1), back shaft (1) is hollow structure, back shaft (1) inboard rotates and is connected with sun gear axle (18), sun gear (32) are installed on sun gear axle (18), planet carrier (16) are installed to back shaft (1) outside, it has planet wheel (15) to rotate to be connected with on planet carrier (16), back shaft (1) outside rotates and is connected with output ring gear (12), output ring gear (12) and planet wheel (15) mesh mutually, back shaft (1) outside still installs brake casing (10), initiative friction disc (9) are installed to brake casing (10) inboard, driven friction disc (8) with initiative friction disc (9) matched with are installed in output ring gear (12) outside, brake casing (10) inboard sliding connection has piston (2) that can offset with initiative friction disc (9), be equipped with resetting means between oil feed piston (2) and back shaft (1), brake casing (10) has seted up brake oil inlet (30), brake oil inlet (30) drive piston (2) move, be equipped with oil drain plug (22) on brake casing (10).
2. The wet brake hub reduction gear assembly for construction machinery according to claim 1, wherein the piston (2) is stepped, the inner sidewall of the brake housing (10) is stepped, and the brake oil inlet (30) is communicated with the step of the inner sidewall of the brake housing (10).
3. A wet brake hub reduction gear assembly according to claim 1, wherein the brake housing (10) is provided with a breather plug (7), and the breather plug (7) corresponds to the positions of the driving friction plate (9) and the driven friction plate (8).
4. The wet brake hub reduction gear assembly for construction machinery according to claim 1, wherein the return device comprises a large spring (4) and a small spring (6) located inside the large spring (4), and the piston (2) is provided with a spring groove for accommodating the large spring (4).
5. The wet brake hub reduction gear assembly for construction machinery according to claim 1, wherein the output ring gear (12) is provided with an end cover (14), and the end cover (14) is provided with a wear-resistant pin (17) corresponding to the sun gear shaft (18).
6. The wet brake hub reduction gear assembly for construction machinery according to claims 1 to 5, wherein a first support bearing (23) and a second support bearing (24) are installed between the output ring gear (12) and the support shaft (1), and a lock nut (20) for fixing the first support bearing (23) is threadedly connected to the support shaft (1).
7. The wet brake hub reduction gear assembly for construction machinery according to claims 1 to 5, wherein a first floating oil seal (11) is installed between the output ring gear (12) and the brake housing (10), and a second floating oil seal (25) is installed between the output ring gear (12) and the support shaft (1).
8. A wet brake hub reduction gear assembly for construction machinery according to any one of claims 1 to 5, wherein the input spline housing (26) is mounted on the sun gear shaft (18), the input bearing (21) is mounted between the input spline housing (26) and the inner side of the support shaft (1), and the retainer ring (27) for fixing the input bearing (21) is mounted on the inner side of the support shaft (1).
9. The wet brake hub reduction gear assembly for construction machinery according to claims 1 to 5, wherein the support shaft (1) is connected with a mounting fixing interface (31) in the shape of a ring-shaped protrusion.
10. A wet brake hub reduction gear assembly for construction machinery according to claims 1 to 5, wherein a large brake seal ring (3) and a small brake seal ring (5) are installed between the piston (2) and the brake housing (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211621235.3A CN115717649A (en) | 2022-12-16 | 2022-12-16 | Wet brake hub reduction gear assembly for engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211621235.3A CN115717649A (en) | 2022-12-16 | 2022-12-16 | Wet brake hub reduction gear assembly for engineering machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115717649A true CN115717649A (en) | 2023-02-28 |
Family
ID=85257697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211621235.3A Pending CN115717649A (en) | 2022-12-16 | 2022-12-16 | Wet brake hub reduction gear assembly for engineering machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115717649A (en) |
-
2022
- 2022-12-16 CN CN202211621235.3A patent/CN115717649A/en active Pending
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 266500 No. 75 East Huanghe Road, Huangdao District, Qingdao City, Shandong Province Applicant after: Lovol Heavy Industry Group Co.,Ltd. Address before: 266500 No. 75 East Huanghe Road, Huangdao District, Qingdao City, Shandong Province Applicant before: LOVOL Engineering Machinery Group Co.,Ltd. |