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Hydraulic motor with integrated self-locking mechanism

A technology of hydraulic motor and self-locking structure, which is applied in the field of hydraulic motors, can solve the problems of self-locking, etc., and achieve the effect of compact structure, short wheelbase and preventing accidents

Inactive Publication Date: 2012-08-15
ZONI GREAT HYDRAULIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The hydraulic motor has a braking function, which can decelerate and brake the rotating motor. Its braking needs to rely on the control port to connect high-pressure oil, so it only has the braking function and cannot realize self-locking when static

Method used

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  • Hydraulic motor with integrated self-locking mechanism
  • Hydraulic motor with integrated self-locking mechanism
  • Hydraulic motor with integrated self-locking mechanism

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with the drawings and embodiments.

[0026] A hydraulic motor with integrated self-locking structure is composed of a hydraulic motor, a brake mechanism and a built-in shuttle valve.

[0027] Such as figure 1 As shown, the hydraulic motor in the embodiment takes a swash plate type plunger motor as an example, which includes a housing 3, a rear cover 11, an oil distribution plate 16, a plunger cylinder 17, a transmission shaft 18, and the plunger cylinder 17 is used as the hydraulic motor Rotor.

[0028] The housing 3 and the rear cover 11 are connected by bolts, and the oil distribution plate 16 is fixed on the rear cover by a cylindrical pin 13. The plunger cylinder 17 and the transmission shaft 18 are tightly matched, and the transmission shaft is matched with the housing and the rear cover through the front bearing 2 and the rear bearing 12. The transmission shaft and the housing are sealed by a rotating...

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Abstract

The invention relates to a hydraulic motor with an integrated self-locking mechanism; a brake mechanism is arranged between a shell and a rear cover of the hydraulic motor, and comprises a brake cylinder, a brake spring, a dynamic friction plate and a static friction plate; the brake spring is arranged between the rear cover and the brake cylinder; the dynamic friction plate is matched with a rotor of the motor by a spline; the static friction plate is arranged between the brake cylinder and the dynamic friction plate, and is fixed on the shell; an internal oil cavity is arranged between the brake cylinder and the shell, and is communicated with a control hole; a shuttle valve is arranged in the rear cover of the hydraulic motor; an oil inlet and an oil returning hole are connected with two inlets of the shuttle valve, and an outlet is arranged in the middle of the shuttle valve; and the outlet of the shuttle valve is connected with the control hole of the brake mechanism. The hydraulic motor is small in appearance, compact in structure and short in axle base; and the self-locking function of the hydraulic motor is independent of external high-pressure oil, so that the safety of hydraulic equipment can be improved. When the high-pressure oil is not available at the oil inlet, the speed is rapidly reduced, and the self-locking function can be realized, so that the occurrence of accidents can be prevented.

Description

Technical field [0001] The invention relates to a hydraulic motor, in particular to a hydraulic motor integrated with a self-locking mechanism. Background technique [0002] The swash plate type hydraulic motor is a kind of plunger type hydraulic motor. The top of the plunger is equipped with a sliding shoe. The sliding shoe rotates on an inclined plane to periodically change the volume in the plunger cavity so that the hydraulic oil is sucked in. Perform work with the discharge plunger cavity and push the drive shaft to rotate. The swash plate hydraulic motor has the advantages of simple structure, good low-speed performance, and large torque. It is often used as a power source to be installed on cranes, excavators and other mechanical equipment, as a power drive for the rotation and walking parts. [0003] However, the existing swash plate motor cannot realize self-locking. When there is no high-pressure oil at the oil inlet, the rotating shaft of the swash plate motor will rota...

Claims

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Application Information

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IPC IPC(8): F03C1/06
Inventor 邓开忠
Owner ZONI GREAT HYDRAULIC
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