Multi-cylinder continuous propulsion system

A propulsion system and rear propulsion technology, applied in the direction of fluid pressure actuating devices, etc., can solve the problems of long retraction length, inability to process, difficult installation, etc., to achieve the effect of no pressure shock, stable operation, and realization of thrust over-limit protection.

CN103671337AActive Publication Date: 2014-03-26BEIJING INST OF SPACE LAUNCH TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2014-03-26

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Abstract

The invention belongs to a hydraulic execution mechanism, and particularly relates to a multi-cylinder continuous propulsion system. The system comprises a control valve set, rear propulsion cylinders, front propulsion cylinders, advancing plugging cylinders, retreating plugging cylinders, a front sliding frame, a rear sliding frame and guide rails. The advancing plugging cylinders and the front propulsion cylinders are all fixed to the sliding frames, the retreating plugging cylinders and the rear propulsion cylinders are all fixed to the sliding frames, one ends of the rear propulsion cylinders are connected with the control valve set, the other ends of the rear propulsion cylinders are connected with one ends of the front propulsion cylinders, and the front sliding frame and the rear sliding frame both can slide on the guide rails. The system is large in stroke, continuous in movement and adjustable in speed.
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Description

technical field

[0001] The invention belongs to a hydraulic actuator, in particular to a hydraulic cylinder propulsion system. Background technique

[0002] Linear motion is one of the most commonly used forms of motion for hydraulic actuators. When the motion stroke is long, the usual practice is to use a hydraulic cylinder with a large stroke. When the stroke is very long, the stroke of the hydraulic cylinder will be very large, which increases the processing difficulty of the hydraulic cylinder, and sometimes even cannot be processed at all. The retracting length of a hydraulic cylinder with a large stroke is also necessarily longer, and its installation is also more difficult. Contents of the invention

[0003] The object of the present invention is to provide a multi-cylinder continuous propulsion system with large stroke, continuous movement and adjustable speed.

[0004] The technical solution for realizing the purpose of the present invention: a multi-cylinder co...

Examples

Embodiment Construction

[0015] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0016] Such as figure 1 As shown, the multi-cylinder continuous propulsion system includes a control valve group 1, a rear propulsion cylinder 2, a forward propulsion cylinder 7, four forward insertion cylinders 4, four backward insertion cylinders 3, a front carriage 6, a rear carriage 5 and Rail 8. A stroke switch is installed on the forward plugging cylinder 4 and the backward plugging cylinder 3, and the stroke switch is triggered when the piston rod of the forward plugging cylinder 4 or the backward plugging cylinder 3 stretches out. The cylinder barrel of the forward plug-in cylinder 4 and the cylinder barrel of the forward push cylinder 7 are all fixed on the front carriage 6 with bolts respectively; On the rear carriage 5. One end of the rear propelling cylinder 2 is fixedly connected with the control valve group 1 by screws. The o...