Telescopic-swivel hydraulic cylinder

A technology of telescopic rotation and hydraulic cylinders, which is applied in the field of hydraulic cylinders, can solve the problems of complex structure and high cost of the overall hydraulic system, and achieve the effects of simple structure, reduced costs, and improved economic benefits

Active Publication Date: 2012-01-18
无锡市长江液压缸有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used method is to realize the rotation of the hydraulic cylinder by adding other hydraulic systems, or using val

Method used

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  • Telescopic-swivel hydraulic cylinder
  • Telescopic-swivel hydraulic cylinder

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Example Embodiment

[0014] Please refer to figure 1 As shown, figure 1 It is a schematic diagram of the structure of the telescopic rotary hydraulic cylinder of the present invention. In this embodiment, the telescopic rotary hydraulic cylinder includes a piston 3, a piston rod 2, a cylinder block 1, and a first oil port 8 and a second oil port 9 communicating with the inner cavity of the cylinder block 1. A cylinder head 7 is fixed at both ends of 1, the piston rod 2 passes through the piston 3 and penetrates the entire cylinder 1, and a spiral guide groove 6 is opened on the piston rod 2 on one side of the piston 3. One end of the limit screw plug 5 is fixed on the inner wall of the cylinder 1, and the other end of the limit screw plug 5 is clamped in the spiral guide groove 6. When the piston rod 2 moves linearly, the limit screw plug 5 and the screw guide The action of the groove 6 can drive the piston rod 2 to perform a rotating action.

[0015] The working principle is: when the oil is supp...

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Abstract

The invention discloses a telescopic-swivel hydraulic cylinder comprising a cylinder body, a piston and piston rods, wherein the piston rods are arranged at two sides of the piston, a swivel guiding device is arranged between the piston rod on at least one side of the piston and the cylinder and comprises a spiral guiding groove arranged on the piston rod, a limiting plug screw is fixed on the inner wall of the cylinder, matched with the spiral guiding groove and clamped in the spiral guiding groove and can slide along the spiral guiding groove. In the telescopic-swivel hydraulic cylinder, the spiral guiding groove and a limiting pin which are matched with each other are additionally arranged between the piston rod and the cylinder; when the piston rod of the hydraulic cylinder performs rectilinear motion, the limiting pin clamped in the spiral guiding groove is used for driving the piston rod to swivel synchronously so that the piston rod swivels while performing the rectilinear motion. The telescopic-swivel hydraulic cylinder has the advantages of simple structure, reliable action, omittance of an additional mechanism required by completing compound actions, reduction of expenses and improvement of economic benefits.

Description

technical field [0001] The invention relates to a hydraulic cylinder, in particular to a telescopic rotary hydraulic cylinder. Background technique [0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy. When it is used to realize reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the movement is stable. It is widely used in hydraulic systems of various machines. The traditional hydraulic cylinder includes a cylinder body, a piston and a piston rod. There are oil inlet and outlet ports on the cylinder body. The movement of the piston and piston rod is realized through the entry and exit of hydraulic oil, and various control functions are realized through external components. The hydraulic rod The motions are linear motions, and the driven external components also do linear motions. [0003] In the actual production process, many external components driven by the hydrau...

Claims

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Application Information

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IPC IPC(8): F15B15/06
Inventor 宋国裕殷嘉寿潘志荣成宇杰张恬
Owner 无锡市长江液压缸有限公司
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