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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

Active Publication Date: 2015-11-04
GUANGZHOU GREED ENG MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned locking structure formed by the semicircular gaps on the adjacent two outer chain plates of the guide pins obviously has the following deficiencies: 1. The shape and diameter deviation of the guide pins and the semicircular gaps and the guide pins and The requirements for the position deviation of the semicircular notch are very strict, and the processing cost is high; 2. There is no clear locking structure, and only a little interference generated by the semicircular notch on the outer chain plate leaving the guide pin shaft ensures that the entire chain is in place. The stiffness in a straight line is obviously insufficient. Once the external force acting on the chain is slightly larger, its locking structure will become the weakest part of the entire chain and be destroyed; will be worn and lose the locking effect

Method used

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  • A unilateral drive rigid chain push-pull actuator
  • A unilateral drive rigid chain push-pull actuator
  • A unilateral drive rigid chain push-pull actuator

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0028] This embodiment is a push-pull actuator that stores chains horizontally and lifts loads vertically.

[0029] see figure 1 , the push-pull actuator in this example consists of a rigid chain 1 and a driver 2, where the rigid chain 1 is stored horizontally.

[0030] see figure 2 and combine Figure 7 , Figure 8 and figure 1 , the rigid chain 1 is made up of several chain links, and each chain link is mainly made up of a pair of outer chain plates 3, a pair of inner chain plates 4, a rigid-soft state conversion pin 5 and two transmission pins 6. Among them, the heads of a pair of outer chain plates 3 and a pair of inner chain plates 4 overlap each other, and two transmission pins 6 are arranged on one side of the chain link, and a pair of outer chain plates 3 and a pair of inner chain plates are connected from the middle. The plates 4 are respectively worn together, and the rigid-flexible state conversion pin 5 is arranged on the other side of the chain link. A pa...

example 2

[0038] The difference between this example and Example 1 is that the rigid chain 1 consists of several such as Figure 9 The link composition shown. see Figure 9 , Figure 10 and Figure 11 , the middle part of the inner side of the outer chain plate 3 is provided with a transverse boss 7, and the side of the boss 7 is closely attached to the head of the opposite inner chain plate 4; It is a long hole, and the long hole is parallel to the boss 7; the corner of the inner chain plate 4 where the head of the rigid-flexible state conversion pin 5 is in close contact with the side of the boss is a rounded corner, the The radius R of the fillet is equal to the distance H from the centerline of the hole 8 to the side of the boss 7 , and the center of the circle is located at the head of the centerline of the hole 8 .

[0039] The principle of rigid chain 1 rigid-flexible state transition described in this example is the same as rigid chain 1 described in embodiment 1, the public...

example 3

[0041] This example is a push-pull actuator that stores chain horizontal push-pull loads horizontally.

[0042] see Figure 12 , The rigid chain 1 in this example is the same as the above-mentioned embodiment 1 or embodiment 2.

[0043] see Figure 13 , in this example, according to the characteristics and states of the rigid chain 1 corresponding to each section of the guide groove 15, the guide grooves 15 provided on the opposite inner surfaces of the two guide plates 12 are sequentially guided by the horizontal flexible linear motion guide section 15-1 , a flexible bending motion guide section 15-2 and a horizontal rigid linear motion guide section 15-3, wherein the middle part of the bottom surface of the guide groove 15 is close to the flexible bending motion guide section 15-2 in the rigid linear motion guide section 15-3 A protrusion 16 is provided at the position, and a control groove 17 for controlling the rigid-flexible state conversion pin 5 to slide back and fort...

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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.

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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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16H7/06F16G13/06
Inventor 江帆蔡耿明方伟中
Owner GUANGZHOU GREED ENG MACHINERY