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Rotary speed reducer assembly and electric driving system

A technology of rotary reducer and assembly, which is applied in transmission devices, mechanical equipment, gear transmission devices, etc., can solve the problems of frequent start and stop of motors, and achieve the effect of reducing impact damage, vibration and noise.

Active Publication Date: 2020-04-24
柳工柳州传动件有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a rotary reducer assembly and an electric drive system, which can solve the problem that the motor frequently starts and stops when emergency braking is performed on the rotary reducer assembly by using the emergency braking structure that comes with the electric drive system

Method used

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  • Rotary speed reducer assembly and electric driving system
  • Rotary speed reducer assembly and electric driving system
  • Rotary speed reducer assembly and electric driving system

Examples

Experimental program
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Effect test

Embodiment 1

[0054] Such as Figure 1 to Figure 3 As shown, this embodiment provides a rotary reducer assembly, which is mainly suitable for the electric drive system driven by a motor. The deceleration structure, when the motor is working, drives the deceleration structure to act, and after deceleration by the deceleration structure, it is output by the output assembly 130 . Wherein, the deceleration structure includes at least two sets of planetary deceleration assemblies.

[0055] For the electric drive system driven by a motor, the speed ratio range of the rotary reducer assembly can be increased by using at least two sets of planetary reduction components for step-by-step reduction, so that the output torque and output speed of the rotary reducer assembly can meet Use requirements, and at the same time make the size of the rotary reducer assembly meet the space installation requirements.

[0056] In this embodiment, the structures of different planetary reduction assemblies are the ...

Embodiment 2

[0092] When the deceleration structure includes three planetary deceleration assemblies, the difference between this embodiment and Embodiment 1 is that, as Figure 4 As shown, the clutch-braking integrated structure is arranged between the second-stage planetary reduction assembly 110 and the third-stage planetary reduction assembly 120 . Specifically, the output end of the two-stage planetary reduction unit is connected to the clutch disc 21 , and the second end of the connecting shaft 1 passes through the brake disc 31 and is connected to the third sun gear 121 .

[0093] In order to simplify the structure of the rotary reducer assembly, in this embodiment, the first-stage planetary reduction assembly 100 and the second-stage planetary reduction assembly 110 share the same ring gear, that is, the first ring gear 102 and the second ring gear 112 are the same ring gear.

Embodiment 3

[0095] When the deceleration structure includes three planetary deceleration assemblies, the difference between this embodiment and Embodiment 1 is that, as Figure 5 As shown, the clutch-brake integrated structure is set at the output end of the three-stage planetary reduction assembly 120 . Specifically, the clutch disc 21 is connected to the output end of the three-stage planetary reduction unit, and the second end of the connecting shaft 1 passes through the brake disc 31 and is connected to the output shaft 131 .

[0096] In order to simplify the structure of the rotary reducer assembly, the primary planetary reduction assembly 100 and the secondary planetary reduction assembly 110 can share the same ring gear, that is, the first ring gear 102 and the second ring gear 112 have the same internal teeth The second ring gear 110 and the third ring gear 120 can also share the same ring gear, that is, the second ring gear 112 and the third ring gear 122 are the same ring gear. ...

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Abstract

The invention relates to the technical field of speed reducers, and discloses a rotary speed reducer assembly and an electric driving system. The rotary speed reducer assembly comprises a speed reducing structure and a clutch braking integrated structure for braking and power cutting off of the speed reducing structure, wherein the clutch braking integrated structure comprises a connecting shaft,a brake, a clutch, a moving assembly and a first elastic piece. When no working oil is input into a pressure oil port, the moving assembly enables the brake driving part to be abutted against the brake driven part under the action of the first elastic piece, meanwhile, the clutch driving part and the clutch driven part are separated, when the working oil is input into the pressure oil port, the moving assembly can overcome the resistance of the first elastic piece under the pressure effect of the working oil, enables the clutch driving part to be abutted against the clutch driven part, meanwhile, the brake driving part and the brake driven part are separated, the rotary speed reducer assembly has a parking braking function and an emergency braking function, the working oil is stopped beinginput into a hydraulic cavity, namely braking and power cut-off of the rotary speed reducer assembly are achieved, and a motor does not need to be started and stopped frequently.

Description

technical field [0001] The invention relates to the technical field of reducers, in particular to a rotary reducer assembly and an electric drive system. Background technique [0002] Some construction machinery is equipped with a slewing system. The existing slewing system is mainly based on the hydraulic drive system. Specifically, the engine or motor drives the hydraulic pump to convert mechanical or electrical energy into hydraulic energy, and then drives the hydraulic motor through distribution valve control. The action converts the hydraulic energy into mechanical energy, and then drives the rotating parts to rotate after being decelerated by the reducer. [0003] Among them, the hydraulic motor and the reducer are integrated into a rotary reducer assembly. The reducer usually adopts a planetary reduction mechanism, which mainly consists of sun gear, planetary carrier, planetary gear, internal gear, output gear and supporting shell, etc., and is mainly used for deceler...

Claims

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Application Information

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IPC IPC(8): F16H1/32F16H57/023F16H57/029F16H57/028F16H57/04F16H57/08F16H57/10
CPCF16H1/32F16H57/023F16H57/029F16H57/028F16H57/0413F16H57/0421F16H57/0457F16H57/0473F16H57/0479F16H57/082F16H57/10F16H2001/327
Inventor 卢再毅牛其林赵亚丽
Owner 柳工柳州传动件有限公司