Quadrilateral composite mechanical arm driving mechanism
A driving mechanism and a quadrilateral technology, applied in the field of mechanical arms, can solve the problems of not being able to withstand the load-bearing effect, restricting wider applications, and the working platform of the lift is not running smoothly, etc.
Active Publication Date: 2015-03-04
淮安市淮安区综合检验检测中心
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Problems solved by technology
The main disadvantage of most expandable 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 deployable mechanism is not high, and these weaknesses limit its wider application
If two parallel extendable mechanisms are used, although the load capacity can be enhanced, there will be a problem of asynchronous work between the two extendable mechanisms, which will lead to problems such as unstable operation of the working platform of the elevator
Method used
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Embodiment Construction
[0025] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.
[0026] Such as Figure 1 to Figure 2 As shown, an X-type composite mechanical arm includes a connecting piece 5 and a connecting rod 4. A plurality of connecting rods 4 are pivotally connected head to tail to form a group of connecting rod assemblies. The head and tail pivoting position is the second pivoting part 2;
[0027] The connecting rods 4 corresponding to the positions in the two groups are pivotally connected to each other at the central position, and the central pivoting position is the first pivotal part 1 of the connecting rods; Expandable mechanism with telescopic direction;
[0028] There are four sets of the expandable mechanism, and the connecting rods 4 of the corresponding positions of each adjacent set of the expandable mechanism are also pivotally connected to the connecting me...
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The invention relates to the field of mechanical arms, in particular to a quadrilateral composite mechanical arm driving mechanism. A first connecting piece and a second connecting piece are arranged in a first sliding chute; a third connecting piece and a fourth connecting piece are arranged in a second sliding chute and a third sliding chute respectively; the sliding chutes are fixedly arranged on a mounting structure; the mechanism also comprises a driving device for driving along a straight line; the driving device is positioned in a quadrilateral composite mechanical arm and is arranged on the mounting structure by using a hinge; a driving end of the driving device acts on an expandable mechanism on a side opposite to the first sliding chute, and the acting point of the driving end is positioned on one of first pivoting parts; the driving direction of the driving device is parallel to the expandable mechanism on the side adjacent to the first sliding chute. Through the structure, the mechanical arm integrally moves towards one direction with one edge fixed during extension or shrinkage.
Description
technical field [0001] The invention relates to the field of manipulators, in particular to a driving mechanism for quadrilateral compound manipulators. Background technique [0002] Extensible mechanisms currently have a wide range of applications and developments, such as foldable tents, retractable door curtains, elevators, foldable desk lamps, or robotic arms. 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. At present, most of the applications of the extendable mechanism use a single-sided extendable mechanism or a double-parallel extendable mechanism. For example, the door curtain adopts a single-sided extendable mechanism, and the elevator adopts a double-parallel extendable mechanism. The main disadvantage of most expandable mechanisms is that under the action of multi-directional force, the strength and rigidity of the structure in ...
Claims
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Login to View More IPC IPC(8): B25J9/00B25J18/02
Inventor 唐建柳资凯亮刘仁昌岑永炽卢佩敏刘丹
Owner 淮安市淮安区综合检验检测中心