CN217923843U

CN217923843U - Special braking integrated speed reducer for electric drive skid-steer loader

Info

Publication number: CN217923843U
Application number: CN202222172327.XU
Authority: CN
Inventors: 赵铁栓; 赵甜甜; 李粱
Original assignee: Xi'an Huixin Transmission Control Co ltd
Current assignee: Xi'an Huixin Transmission Control Co ltd
Priority date: 2022-08-18
Filing date: 2022-08-18
Publication date: 2022-11-29
Anticipated expiration: 2032-08-18

Abstract

The utility model discloses a dedicated braking integrated form speed reducer of electric drive skid-steer loader, including stopper part and gear reduction mechanism, gear reduction mechanism includes input shaft, reduction gear train, output shaft, sprocket and relevant annex, the input shaft passes through the spline and is connected with the motor, reduction gear train includes dead axle gear pair part and planet speed reduction part, dead axle gear pair part includes one-level driving gear and one-level driven gear; the utility model drives the input shaft of the speed reducer to rotate by the motor to drive the primary driving gear to rotate, realizes speed reduction and torque increase by the gear reduction mechanism, transmits torque to the chain wheel by the output shaft, and transmits single torque to the two wheels by chain transmission, thereby effectively reducing energy loss in the middle process and leading the transmission system to be more energy-saving and reliable; meanwhile, the speed reducer is integrated with a brake mechanism, so that the functions of driving and parking braking can be realized, and the whole transmission system is more compact.

Description

Special braking integrated speed reducer for electric drive skid-steer loader

Technical Field

The utility model belongs to the technical field of the engineering machine tool transmission, concretely relates to dedicated braking integrated form speed reducer of electric drive skid-steer loader.

Background

Skid-steer loader relies on 360 degrees to turn to and multi-functional characteristics obtain wide application in europe and america as international general small-size engineering machine tool product, and skid-steer loader adopts engine + walking pump or motor drive more at present, and its noise, energy consumption are big, inefficiency and have certain pollution to the environment during operation, and along with the arrival of new forms of energy era, the electric drive becomes the trend of new era, for this the utility model provides a dedicated braking integrated form speed reducer of electric drive skid-steer loader.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a dedicated braking integrated form speed reducer of electric drive skid-steer loader to solve the present skid-steer loader that proposes in the above-mentioned background art and adopt engine + walking pump or motor drive more, its noise, energy consumption are big, inefficiency and the environment has certain pollution problem when the operation.

In order to achieve the above object, the utility model provides a following technical scheme: the special braking integrated speed reducer for the electric drive skid-steer loader comprises a brake part and a gear reduction mechanism, wherein the gear reduction mechanism comprises an input shaft, a reduction gear train, an output shaft, a chain wheel and related accessories, the input shaft is connected with a motor through a spline, the reduction gear train comprises a fixed shaft gear pair part and a planetary reduction part, the fixed shaft gear pair part comprises a primary driving gear and a primary driven gear, the planetary reduction part comprises a central cycloid gear, a planet wheel, a planet carrier, a gear ring and a fixed seat, the related accessories comprise a bearing, a fixed seat and a locking device, the primary driving gear is fixed at the end part of the input shaft and meshed with the primary driven gear, the primary driven gear is fixed on the central cycloid gear, one end of the output shaft penetrates through the inner side of the fixed seat and is provided with the planet carrier, the planet carrier is arranged at the inner side of the gear ring, the plurality of gear rings are arranged at the inner side of the planet wheel and meshed with the end part of the central cycloid gear, the chain wheel is fixed at the other end part of the output shaft, the output shaft outputs torque through the gear reduction mechanism, the chain wheel transmits the torque provided by the motor to a brake friction disc, a brake metal disc, a spring, a brake disc, a brake pusher, a brake disc, a brake spring, a brake piston supporter, a brake sealing device and a brake sealing device, a brake metal sealing pusher, a brake disc and a brake sealing device are arranged at one side of the brake disc, and a brake metal sealing device, the brake disc, the brake spring, the brake disc, and a brake pusher are arranged at one side of the brake device, the brake pusher is positioned on one side of the brake friction disc, the brake elastic device is positioned on one side of the brake pusher, the brake piston is positioned on one side of the brake elastic device, the brake rod is rotatably arranged at one end of the brake shell, one end of the brake rod is contacted with the end part of the brake piston, and one end of the central cycloid gear penetrates through the inner side of the brake shell and is connected with the brake metal disc.

Preferably, the bearing is arranged between the fixed seat and the output shaft, the planet carrier is fixed at the end part of the output shaft through a locking device, and the locking device is a locking bolt.

Preferably, a sealing device and a piston sealing piece are respectively installed on the surfaces of two ends of the brake piston, a spring is arranged between the brake pusher and the brake friction disc, and a sealing gasket is arranged on the inner side of the brake shell.

Preferably, a base shaft is fixed at one end of the brake housing, and the brake lever is rotatably sleeved on the base shaft.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a motor drive speed reducer input shaft rotates and drives the rotation of one-level driving gear, realizes slowing down by gear reduction mechanism and increases the turn round, transmits the moment of torsion to the sprocket through the output shaft, and rethread chain drive transmits single moment distribution to two wheels, effectively reduces middle process energy loss, makes transmission system more energy-conserving reliable; meanwhile, the speed reducer integrates a brake mechanism, the functions of driving and parking braking can be realized, the whole transmission system is more compact, the integrated structure is two independent parts, and the maintenance is more convenient.

Drawings

FIG. 1 is a schematic diagram of the transmission of the present invention;

FIG. 2 is a schematic structural view of a brake part of the present invention;

fig. 3 is a schematic structural view of the gear reduction mechanism of the present invention;

in the figure: 1. a stopper portion; 2. a fixed-axis gear pair part; 3. a planetary reduction section; 4. an output shaft; 5. a sprocket; 6. an input shaft; 7. sealing gaskets; 8. a brake pusher; 9. a brake spring device; 10. a brake piston; 11. a sealing device; 12. a brake lever; 13. a brake friction disk; 14. a brake metal disc; 15. a spring; 16. a brake support member; 17. a piston seal; 18. a brake housing; 19. a primary driving gear; 20. a central cycloid gear; 21. a primary driven gear; 22. a planet wheel; 23. a planet carrier; 24. a ring gear; 25. a fixed seat; 26. and a bearing.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely 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.

Examples

Referring to fig. 1 to 3, the present invention provides a technical solution: the special braking integrated speed reducer for the electric drive skid-steer loader comprises a brake part 1 and a gear reducing mechanism, wherein the two parts are mutually independent, the gear reducing mechanism comprises an input shaft 6, a reducing gear train, an output shaft 4, a chain wheel 5 and related accessories, the input shaft 6 is connected with a motor through a spline to provide power, the reducing gear train comprises a fixed shaft gear pair part 2 and a planetary reducing part 3, the fixed shaft gear pair part 2 comprises a first-stage driving gear 19 and a first-stage driven gear 21, the planetary reducing part 3 comprises a central cycloid gear 20, a planetary gear 22, a planetary carrier 23, a gear ring 24 and a fixed seat 25, the related accessories comprise a bearing 26, a fixed seat 25 and a locking device, the first-stage driving gear 19 is fixed at the end part of the input shaft 6, the first-stage driving gear 19 is meshed with the first-stage driven gear 21, the first-stage driven gear 21 is fixed on the central cycloid gear 20, one end of an output shaft 4 penetrates through the inner side of a fixed seat 25 and is provided with a planet carrier 23, the planet carrier 23 is positioned on the inner side of a gear ring 24, a plurality of planet wheels 22 are positioned on the inner side of the gear ring 24 and are meshed with the end part of a central cycloid gear 20, a chain wheel 5 is fixed at the other end of the output shaft 4, the output shaft 4 outputs torque through a gear speed reducing mechanism, the chain wheel 5 transmits the torque provided by a motor to wheels through chain transmission, in the working process, the motor drives an input shaft 6 to reduce the speed in a first stage through a fixed shaft gear pair part 2, and then the torque is transmitted to the output shaft 4 through a planet speed reducing part 3 to be transmitted to the chain wheel 5 to realize power transmission, and a brake part 1 comprises a brake friction disc 13, a brake metal disc 14, a spring 15, a brake pusher 8, a brake piston 10, a brake support part 16, a brake lever 12, a brake elastic device 9, the brake device comprises a brake shell 18 and a sealing device 11, wherein a brake friction disc 13, a brake metal disc 14, a spring 15, a brake pusher 8, a brake piston 10, a brake support piece 16, a brake elastic device 9 and the sealing device 11 are all positioned on the inner side of the brake shell 18, the brake metal disc 14 is installed on one side of the brake support piece 16, the brake friction disc 13 is positioned on one side of the brake metal disc 14, the brake pusher 8 is positioned on one side of the brake friction disc 13, the brake elastic device 9 is positioned on one side of the brake pusher 8, the brake piston 10 is positioned on one side of the brake elastic device 9, a brake rod 12 is rotatably arranged at one end of the brake shell 18, one end of the brake rod 12 is contacted with the end of the brake piston 10, one end of a central cycloid gear 20 penetrates through the inner side of the brake shell 18 to be connected with the brake metal disc 14, and the brake part 1 controls the brake piston 10 to push oil in a brake cavity through a brake signal and transmits the signal to the brake pusher 8 to further compress the brake friction disc 13, so as to generate brake force.

In this embodiment, preferably, the bearing 26 is disposed between the fixed seat 25 and the output shaft 4, and the planet carrier 23 is fixed at the end of the output shaft 4 by a locking device, which is a locking bolt.

In this embodiment, it is preferable that the sealing device 11 and the piston sealing member 17 are respectively installed on both end surfaces of the brake piston 10, the spring 15 is disposed between the brake pusher 8 and the brake friction disk 13, the sealing gasket 7 is disposed on the inner side of the brake housing 18, and the sealing gasket 7 is used for sealing the joint surface of the brake housing 18 and the inner side joint portion.

In this embodiment, preferably, a base shaft is fixed at one end of the brake housing 18, and the brake lever 12 is rotatably sleeved on the base shaft.

The utility model discloses a theory of operation and use flow: the basic working principle of the brake integrated speed reducer is that a motor is connected with an input shaft 6 through a spline to input torque, then the torque is increased through a gear reduction mechanism to transmit the force to a chain wheel 5, then the torque is transmitted to wheels through the transmission of the chain wheel 5, when braking is needed, a signal of a brake rod 12 is applied to a brake piston 10, the brake piston 10 pushes oil in a cavity, the signal is transmitted to a brake pusher 8, and a brake friction disc 13 is pressed tightly to generate braking force;

the utility model discloses at least, have following improvement: firstly, the method comprises the following steps: the reduction ratio is adjustable; II, secondly: the speed reducer and the braking system are designed in two-in-one mode; 3. the gear reduction and the braking system are mutually independent, so that the maintenance is convenient; fourthly, the method comprises the following steps: the output power is transmitted to the wheels through a chain wheel 5; fifthly: the brake has the functions of driving and parking braking; sixthly, the method comprises the following steps: a wet disc service brake; seventhly, the steps of: the spring brakes the hydraulic release parking brake.

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

1. Dedicated braking integrated form speed reducer of electric drive skid-steer loader, its characterized in that: the brake device comprises a brake part (1) and a gear reduction mechanism, wherein the gear reduction mechanism comprises an input shaft (6), a reduction gear train, an output shaft (4), a chain wheel (5) and related accessories, the input shaft (6) is connected with a motor through a spline, the reduction gear train comprises a fixed-axis gear pair part (2) and a planetary reduction part (3), the fixed-axis gear pair part (2) comprises a first-level driving gear (19) and a first-level driven gear (21), the planetary reduction part (3) comprises a central cycloid gear (20), a planet wheel (22), a planet carrier (23), a gear ring (24) and a fixed seat (25), the related accessories comprise a bearing (26), a fixed seat (25) and a locking device, the first-level driving gear (19) is fixed at the end part of the input shaft (6), the first-level driving gear (19) is meshed with the first-level driven gear (21), the first-level driven gear (21) is fixed on the central cycloid gear (20), one end part of the output shaft (4) penetrates through the inner side of the fixed seat (25) and is provided with the fixed seat (23), the inner side of the gear ring (24), the planet carrier (22) is positioned at the other end part of the planet carrier (5), the brake device comprises an output shaft (4), a chain wheel (5), a brake part (1), a brake part and a brake part, wherein the output shaft (4) outputs torque through a gear reduction mechanism, the chain wheel (5) transmits the torque provided by a motor to wheels through chain transmission, the brake part (1) comprises a brake friction disc (13), a brake metal disc (14), a spring (15), a brake pusher (8), a brake piston (10), a brake elastic device (9), a brake support (16), a brake shell (18) and a sealing device (11), the brake friction disc (13), the brake metal disc (14), the spring (15), the brake pusher (8), the brake piston (10), the brake support (16), the brake elastic device (9) and the sealing device (11) are all located on the inner side of the brake shell (18), the brake metal disc (14) is installed on one side of the brake support (16), the brake friction disc (13) is located on one side of the brake metal disc (14), the brake elastic device (8) is located on one side of the brake friction disc (8), the brake piston (10) is located on one side of the elastic device (9), the brake pusher (12) is in contact with one end of the brake piston pusher (12), and the brake piston (12) is arranged on one end of the brake piston (12), one end of the central cycloid gear (20) penetrates through the inner side of the brake shell (18) to be connected with the brake metal disc (14).

2. The electric drive skid-steer loader dedicated brake integrated reduction gear of claim 1, wherein: the bearing (26) is arranged between the fixed seat (25) and the output shaft (4), the planet carrier (23) is fixed at the end part of the output shaft (4) through a locking device, and the locking device is a locking bolt.

3. The electric drive skid-steer loader dedicated brake integrated speed reducer of claim 1, wherein: the brake device is characterized in that sealing devices (11) and piston sealing pieces (17) are respectively installed on the surfaces of two ends of the brake piston (10), a spring (15) is arranged between the brake pusher (8) and the brake friction disc (13), and a sealing gasket (7) is arranged on the inner side of the brake shell (18).

4. The electric drive skid-steer loader dedicated brake integrated reduction gear of claim 1, wherein: one end of the brake shell (18) is fixed with a base shaft, and the brake lever (12) is rotatably sleeved on the base shaft.