A unilateral drive rigid chain push-pull actuator

An actuator and rigid technology, applied in the field of linear actuators, can solve problems such as high processing cost, insufficient rigidity, and harsh requirements, and achieve the effects of safe and reliable work, reduced difficulty and cost, and long service life
CN103470705BActive Publication Date: 2015-11-04GUANGZHOU GREED ENG MACHINERY
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGZHOU GREED ENG MACHINERY
Publication Date
2015-11-04

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Abstract

The invention relates to a single-side driven rigid chain push-and-pull actuating mechanism which consists of a rigid chain and a driver, and is characterized in that two drive pins are arranged at one side of each chain link of the rigid chain; a rigid and soft state conversion pin is arranged at the other side of each chain link of the rigid chain; two guide plates are arranged in the driver in an opposite way, and the inner surface of each guide plate is provided with a guide groove; a control groove is arranged at the bottom of each guide groove at the position where a rigid linear motion guide section is close to a soft curve motion guide section; in the movement process of the rigid chain, the rigid and soft state conversion pins are controlled to slide back and forth by the control grooves, so that the rigid chain can be converted between a rigid state and a soft state.
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Description

technical field

[0001] The invention relates to a linear actuator, in particular to an actuator using a rigid transmission chain, which is suitable for the occasion of pushing a load with a large stroke. Background technique

[0002] Rigid chain (also known as push-pull chain) is a special chain, which has both the flexibility of ordinary chain and certain rigidity, so the actuator composed of rigid chain and driver can replace hydraulic cylinder, air cylinder and electric push rod etc. are widely used in occasions that require a large stroke to push the load, so as to reduce the volume of the equipment and save space. Existing rigid chain mainly contains two big classes, and a class is the rigid chain of single row pin shaft, and another kind is the rigid chain of double row pin shaft.

[0003] The inner chain plate or the outer chain plate of the above-mentioned rigid chain with single row of pins is a limiting thrust plate. When the chain is pushed, the adjacent two limi...

Claims

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