Brake increasing device for TMTB high-voltage cycloid motor

Abstract

The utility model discloses a TMTB high-voltage cycloid motor brake increasing device which comprises an output shaft and a shell, the output shaft rotationally penetrates through the middle of the shell, a connecting plate is connected to the side face of the shell, a rear shell is connected to the side face of the connecting plate, the output shaft is fixedly connected to a large connecting shaft, and the large connecting shaft is fixedly connected to the shell. The large connecting shaft is located in the shell, the connecting plate and the rear shell, the end of the large connecting shaft is connected with a small linkage shaft, the small linkage shaft is rotationally arranged in the rear shell, a rear partition plate is arranged between the rear shell and the stator and rotor pair, the rear partition plate is arranged on the outer side of the small linkage shaft in a sleeving mode, and a wet-type copper-based friction plate is adopted. The brake has the advantages that the belleville spring serves as a brake composition unit, the copper-based friction plate does not pollute the cleanliness of oil in the motor, the integrated shuttle valve is used in a matched mode, the brake can be released when the motor is started, synchronous braking is achieved when the motor stops running, the braking state during stopping can be effectively guaranteed, and safety and reliability are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor braking, and in particular relates to a TMTB high-voltage cycloid motor with an additional braking device. Background Art

[0002] Airport support vehicles and lawn and turf equipment require numerous low-speed, high-torque motors capable of holding a load in any desired position. However, due to the required clearance fit within hydraulic motor components, all motors experience some degree of slip when a load acts on a stationary motor output shaft, making it impossible to hold the load in the desired position. To address this issue, a TMTB high-pressure gerotor motor with an additional braking device was proposed. Utility Model Content

[0003] The utility model provides a TMTB high-pressure cycloid motor with an additional braking device, which adopts the principle of using the elastic deformation force of a butterfly spring to generate braking, and uses the friction force generated by a friction plate to brake the output shaft. When the motor needs to rotate normally, the pressure of the hydraulic oil pushes the piston to loosen the friction plate and release the brake.

[0004] In order to achieve the above-mentioned purpose, the utility model provides a TMTB high-voltage cycloid motor with an additional braking device, including an output shaft and a housing, the output shaft rotates through the middle of the housing, a connecting plate is connected to the side of the housing, and a rear housing is connected to the side of the connecting plate. The output shaft is fixedly connected to the large connecting shaft, and the large connecting shaft is located in the housing, the connecting plate and the rear housing. A small linkage shaft is connected to the end of the large connecting shaft, and the small linkage shaft is rotatably arranged in the rear housing. A rear partition is provided between the rear housing and the stator and rotor pair, and the rear partition is sleeved on the outside of the small linkage shaft.

[0005] Preferably, a compensation plate is provided in the rear housing, an oil distribution plate is provided in the rear housing, the oil distribution plate is provided on one side of the compensation plate, and the oil distribution plate is sleeved on the outside of the small linkage shaft.

[0006] Preferably, a seal is provided on the outer side of the output shaft, the seal is arranged in the housing, a middle bearing is provided in the housing, the middle bearing is sleeved on the output shaft and arranged close to the stator and rotor pair, a front bearing is provided in the housing, the front bearing is sleeved on the output shaft and arranged between the seal and the middle bearing.

[0007] Preferably, a friction plate is provided in the rear housing, and the friction plate is sleeved on the outside of the output shaft. A piston is provided in the housing, and the piston is provided on one side of the friction plate and sleeved on the outside of the output shaft. A butterfly spring is provided in the housing, and the butterfly spring is arranged around the outside of the output shaft, and the butterfly spring is arranged between the piston and the connecting plate.

[0008] The beneficial effects of the utility model are:

[0009] The utility model adopts wet copper-based friction plates and butterfly springs as brake components, which have the characteristics of compact structure, stable performance and long service life. In addition, the copper-based friction plates have the advantage of not polluting the cleanliness of the oil inside the motor.

[0010] When used in conjunction with the integrated shuttle valve, the brake can be released at the same time as the motor starts, and synchronous braking can be achieved when the motor stops, which can effectively ensure the braking state when stopping, safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the overall structure of the utility model TMTB high-voltage cycloid motor with a braking device added.

[0012] Figure 2 yes Figure 1 A partial enlarged view of point A in the middle.

[0013] In the figure: 1. output shaft; 2. seal; 3. housing; 4. front bearing; 5. friction plate; 6. piston; 7. butterfly spring; 8. middle bearing; 9. connecting plate; 10. large connecting shaft; 11. stator and rotor pair; 12. rear partition; 13. small linkage shaft; 14. oil distribution plate; 15. compensation plate; 16. rear housing. DETAILED DESCRIPTION

[0014] The following is combined with Figure 1-2 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0015] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, specific orientation structure and operation, and therefore cannot be understood as a limitation on the present invention.

[0016] The present embodiment provides a TMTB high-voltage cycloid motor with an additional braking device, including an output shaft 1 and a housing 3. The output shaft 1 rotates and passes through the middle of the housing 3. A connecting plate 9 is connected to the side of the housing 3, and a rear housing 16 is connected to the side of the connecting plate 9. The output shaft 1 is fixedly connected to a large connecting shaft 10. The large connecting shaft 10 is located in the housing 3, the connecting plate 9 and the rear housing 16. A small linkage shaft 13 is connected to the end of the large connecting shaft 10. The small linkage shaft 13 is rotatably arranged in the rear housing 16. A rear partition plate 12 is provided between the rear housing 16 and the stator and rotor pair 11. The rear partition plate 12 is sleeved on the outside of the small linkage shaft 13. A compensation plate 15 is provided in the rear housing 16. An oil distribution plate 14 is provided in the rear housing 16. The oil distribution plate 14 Located on one side of the compensation plate 15, the oil distribution plate 14 is sleeved on the outside of the small linkage shaft 13, and a seal 2 is sleeved on the outside of the output shaft 1. The seal 2 is provided in the housing 3. A middle bearing 8 is provided in the housing 3. The middle bearing 8 is sleeved on the output shaft 1 and is arranged close to the stator and rotor pair 11. A front bearing 4 is provided in the housing 3. The front bearing 4 is sleeved on the output shaft 1 and is arranged between the seal 2 and the middle bearing 8. A friction plate 5 is provided in the rear housing 16. The friction plate 5 is sleeved on the outside of the output shaft 1. A piston 6 is provided in the housing 3. The piston 6 is provided on one side of the friction plate 5 and sleeved on the outside of the output shaft 1. A butterfly spring 7 is provided in the housing 3. The butterfly spring 7 is arranged around the outside of the output shaft 1 and is arranged between the piston 6 and the connecting plate 9.

[0017] The working process of the TMTB high-pressure cycloid motor with a brake device in this embodiment is as follows: after the hydraulic oil enters the oil port 3AB of the motor housing, it is distributed through the oil distribution plate 14 and the rear partition 12, and the hydraulic oil enters the stator and rotor pair 11. The generated speed and torque are transmitted to the output shaft 1 through the large connecting shaft 10 to drive the load movement.

[0018] At the same time, the hydraulic oil passes through the shuttle valve oil port, enters the motor brake oil port, and enters the brake piston 6. The cavity created inside, the pressure oil pushes the piston 6 to move backward, forcing the butterfly spring 7 to compress, so that the piston 6 and the friction plate 5 group are separated to create a movement gap, so that the connecting shaft can drive the friction plate 5 to rotate with the motor at the same time.

[0019] When the hydraulic oil stops being input into the motor housing 3, the hydraulic oil between the pistons 6 is returned to the motor oil port through the internal oil channel due to the recovery pressure of the spring force, so that the piston 6 and the friction plate 5 fit tightly together, and friction is generated through the friction plate 5, which produces a braking function on the output shaft 1 and completes the braking state.

[0020] The above content is merely an example and explanation of the structure of the present utility model. Technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims, they should all fall within the scope of protection of the present utility model.

Claims

1. A TMTB high-voltage cycloid motor with a brake device, characterized in that: The invention comprises an output shaft (1) and a housing (3), wherein the output shaft (1) rotates and passes through the middle of the housing (3), a connecting plate (9) is connected to the side of the housing (3), and a rear housing (16) is connected to the side of the connecting plate (9), and the output shaft (1) is fixedly connected to a large connecting shaft (10), and the large connecting shaft (10) is located in the housing (3), the connecting plate (9) and the rear housing (16), and a small linkage shaft (13) is connected to the end of the large connecting shaft (10), and the small linkage shaft (13) is rotatably arranged in the rear housing (16), and a rear partition (12) is provided between the rear housing (16) and the stator and rotor pair (11), and the rear partition (12) is sleeved on the outside of the small linkage shaft (13).

2. The TMTB high-voltage cycloid motor braking device according to claim 1 is characterized in that: A compensation plate (15) is provided in the rear housing (16), an oil distribution plate (14) is provided in the rear housing (16), the oil distribution plate (14) is provided on one side of the compensation plate (15), and the oil distribution plate (14) is sleeved on the outside of the small linkage shaft (13).

3. The TMTB high-voltage cycloid motor braking device according to claim 1, characterized in that: The output shaft (1) is sleeved with a seal (2), the seal (2) is arranged in a housing (3), a middle bearing (8) is arranged in the housing (3), the middle bearing (8) is sleeved on the output shaft (1) and is arranged close to the stator and rotor pair (11), and a front bearing (4) is arranged in the housing (3), the front bearing (4) is sleeved on the output shaft (1) and is arranged between the seal (2) and the middle bearing (8).

4. The TMTB high-voltage cycloid motor braking device according to claim 1, characterized in that: A friction plate (5) is provided in the rear housing (16), and the friction plate (5) is sleeved on the outside of the output shaft (1). A piston (6) is provided in the housing (3), and the piston (6) is provided on one side of the friction plate (5) and sleeved on the outside of the output shaft (1). A butterfly spring (7) is provided in the housing (3), and the butterfly spring (7) is arranged around the outside of the output shaft (1). The butterfly spring (7) is arranged between the piston (6) and the connecting plate (9).

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