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Rotation type self-locking hydraulic oil cylinder

A hydraulic cylinder and self-locking technology, applied in the hydraulic field, can solve the problems of high application cost, difficult processing, complex structure, etc., and achieve the effect of easy processing, low cost and simple structure

Active Publication Date: 2015-02-18
娄底光华机械设备制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The locking method of the hydraulic locking circuit inevitably has leakage, which cannot guarantee the reliability of locking; and in some special applications, it is often required that the cylinder piston rotates at a small angle during the expansion and contraction process to perform specific operations, while the current trapezoidal groove There are many parts in the rotating mechanism, the structure is too complicated, it is difficult to process, and the application cost is high

Method used

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  • Rotation type self-locking hydraulic oil cylinder
  • Rotation type self-locking hydraulic oil cylinder
  • Rotation type self-locking hydraulic oil cylinder

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Embodiment Construction

[0028] In order to clarify the technical scheme and technical purpose of the present invention, the present invention will be further introduced below in conjunction with the accompanying drawings and specific implementation methods.

[0029] Such as Figure 1-Figure 3 As shown, a rotary self-locking hydraulic cylinder of the present invention is characterized in that it includes a transducing part 1 , a locking part 2 and a rotating part 3 which are sequentially sealed and connected.

[0030] The transducing part 1 is used to convert hydraulic energy into reciprocating motion output. The transducing part 1 includes a first oil cylinder body, and the first oil cylinder body is built with a first piston 12, a first piston rod 13, a first cylinder barrel 11 and a first cylinder barrel 11. One end cap 14. The first piston rod 13 and the first piston 12 are hermetically fixed and placed inside the first cylinder 11, and the other end of the first piston rod 13 passes through the ...

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Abstract

The invention belongs to the technical field of hydraulic pressure, and particularly discloses a rotation type self-locking hydraulic oil cylinder. The rotation type self-locking hydraulic oil cylinder comprises an energy transduction part, a locking part and a rotation applying part which are successively connected in a sealing mode, wherein a first piston, a first piston rod, a first cylinder barrel and a first oil port are arranged inside the energy transduction part; a locking device, a second piston rod, a second cylinder barrel, a second oil port and a third oil port are arranged in the locking part; a rotating device, a third piston rod and a third cylinder barrel are arranged in the rotation applying part. The piston rods are driven to stretch out of the oil cylinder through the oil feed of the first oil port, the rotation applying device forces the piston rods to rotate in the moving process, at the end point of the stroke of the oil cylinder, the locking device is driven to lock the piston rods through the oil feed of the third oil port, and the locking device is driven for unlocking operation through the oil feed of the second oil port. The rotation type self-locking hydraulic oil cylinder is simple in structure, easy to process and low in cost.

Description

technical field [0001] The invention relates to a hydraulic device, in particular to a rotary self-locking hydraulic oil cylinder which can be rotated during the telescoping process and automatically locked at the end of the stroke to maintain its stroke state, belonging to the field of hydraulic technology. Background technique [0002] The hydraulic cylinder is an actuator that converts hydraulic energy into mechanical energy in a hydraulic device to achieve linear reciprocating motion. In the application of equipment, it is often required that the oil shortage is reliably locked at any output working position and fixed for a long time. However, the current locking method is guaranteed by various hydraulic locking circuits. The locking method of the hydraulic locking circuit inevitably has leakage, which cannot guarantee the reliability of locking; and in some special applications, it is often required that the cylinder piston rotates at a small angle during the expansion ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/26F15B15/20F15B15/14
CPCF15B15/14F15B15/20F15B15/26
Inventor 许一卫
Owner 娄底光华机械设备制造有限公司
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