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A type of composite mechanical arm

A mechanical arm, a type of technology, applied in the parts, instruments and other directions of the instrument, can solve the problems of unstable operation of the working platform of the elevator, limited wider application, low load capacity, etc., to achieve increased rigidity and strength, The effect of large expansion ratio and improved load capacity

Active Publication Date: 2017-03-22
淮安市淮安区综合检验检测中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main disadvantage of most scissor mechanisms is that under the action of multi-directional force, the strength and rigidity of the structure in the direction of the force are not enough to bear the load-bearing effect of the force, it is prone to distortion, and the safety is not high
In addition, the load capacity of the current scissor mechanism is not high, and these weaknesses limit its wider application
If a double parallel scissor mechanism is used, although the load capacity can be enhanced, there will be a problem of asynchronous work between the two scissor mechanisms, resulting in problems such as unstable operation of the working platform of the elevator

Method used

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  • A type of composite mechanical arm
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  • A type of composite mechanical arm

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The connecting piece 5 is composed of two connecting plates 51, one ends of the two connecting plates 51 are fixed to each other, and the other ends of the two connecting plates 51 are respectively connected with the second pivot joint 2, and the two connecting plates 51 are connected to each other. The two second pivot joints 2 respectively belong to two sets of the expandable mechanisms, so that the design of the connecting piece 5 is simple and convenient in structural installation, as long as it is connected by a connecting shaft (such as a pin shaft or a similar structure, which is convenient for purchase) Parts) connect the other end of the connecting plate 51 with the connecting rod 4 in series, and fix the two ends of the connecting shaft, which improves the efficiency of installation and disassembly, and ensures the overall stability and flexibility of the composite mechanism; and The processing is convenient and the cost is low.

[0033] Such as image 3 As s...

Embodiment 2

[0036] Such as Figure 5 As shown, the connecting piece 5 is composed of two connecting plates 51, one ends of the two connecting plates 51 are fixed to each other, the other ends of the two connecting plates 51 are provided with a clamping groove 3, and the connecting rod 4 The groove body of the clamping groove 3 is pivotally connected to the other end of the connecting plate 51 , and the two second pivotal parts 2 belong to two sets of the expandable mechanisms respectively. When using such a structural design, it is necessary to insert the connecting rod 4 into the groove body of the clamping groove 3 at the other end of the connecting plate 51, and then connect the connecting rod 4 through the connecting shaft (such as a pin shaft or a similar structure, which is convenient to purchase). The other end of the plate 51 is connected in series with the connecting rod 4, and the two ends of the connecting shaft are fixed, so that the two long end surfaces of the connecting rod...

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PUM

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Abstract

A right-angled-u-type composite mechanical arm comprises connection parts and connection rod assemblies; the connection rod assemblies fall into two sets; each set of connection rod assembly is formed by connecting connection rods end to end in a pin joint mode; the end-to-end pin joint positions are second pin joint portions of the connection rods; the middles of the connection rods, corresponding to one another in position, in the two sets of connection rod assemblies are connected in a pin joint mode; the middle pin joint positions are first pin joint portions of the connection rods; the two sets of connection rod assemblies form a foldable mechanism stretching out and drawing back in one direction; in the three foldable mechanisms and the two connection parts, two second pin joint portions of two of the foldable mechanisms are connected with the two connection parts in a pin joint mode respectively, two second pin joint portions of the third foldable mechanism are connected with the two connection parts in a pin joint mode respectively, and the three foldable mechanisms form the right-angled-u-type composite mechanical arm. Rigidity and intensity are increased, the loading capacity is improved, and the magnification ratio is large under action of multi-direction force; operation is synchronous, and stretching out and drawing back are more stable.

Description

technical field [0001] The invention relates to the field of scissor mechanisms, in particular to a shank-type composite mechanical arm. Background technique [0002] The scissor mechanism has a wide range of applications and developments, such as foldable tents, retractable door curtains, elevators, foldable desk lamps or robotic arms, etc. It is characterized by a large expansion ratio, can be extended for a long distance and a large span, and when it shrinks, it occupies a small space, so it is used in many industries. What adopt in the application of most scissor mechanism at present is single-sided scissor mechanism or double parallel scissor mechanism, what adopt as door curtain is single-sided scissor mechanism, what elevator adopts is double parallel scissor mechanism. The main disadvantage of most scissor mechanisms is that under the action of multi-directional force, the strength and rigidity of the structure in the direction of the force are not enough to bear th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G12B3/00
Inventor 唐建柳刘江锋卢佩敏刘丹康馨馨
Owner 淮安市淮安区综合检验检测中心