Guide wheel capable of being automatically folded and folding mechanism for same

A folding mechanism and a guide wheel technology, applied in the field of guide wheels, can solve the problems of increased bearing capacity and complex structure of the guide wheels, and achieve the effects of high reliability and simple structure

Active Publication Date: 2011-05-18
SANY HEAVY IND CO LTD (CN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The self-folding guide wheel with crank linkage mechanism is relatively simple to operate, but the structure is too complicated, which limits the further increase of the bearing capacity of the guide wheel

Method used

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  • Guide wheel capable of being automatically folded and folding mechanism for same
  • Guide wheel capable of being automatically folded and folding mechanism for same
  • Guide wheel capable of being automatically folded and folding mechanism for same

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Experimental program
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Embodiment Construction

[0021] The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

[0022] figure 1 and figure 2 A structural view of the automatically foldable guide wheel according to the present invention is shown. Such as figure 1 and figure 2 As shown, the automatically foldable guide wheels include a lifting mechanism and a folding mechanism.

[0023] The lifting mechanism includes: a screw nut transmission mechanism composed of a screw rod 15 and a nut 1, an inner cylinder 2 and an outer cylinder 3 sleeved together, a driving box 16 and a driving box fixed to the top of the outer cylinder 3 for driving the screw. It is fixed to the bearing seat 6 at the lower end of the inner cylinder 2 , wherein the nut 1 is fixed to the inner cylinder 2 .

[0024] In this way, when the drive box 16 drives the screw rod 15 to rotate ...

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PUM

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Abstract

The invention discloses a guide wheel capable of being automatically folded and a folding mechanism for the same. The guide wheel comprises a hoisting mechanism and the folding mechanism, the folding mechanism comprises a supporting seat, a side plate, a drive rod and a gear, wherein the side plate is pivoted on the supporting seat by virtue of a pivot and is provided with wheels; the drive rod penetrates through the center of the supporting seat in a lifting way, a rack is formed at the lower end of the drive rod, and the upper end of the drive rod is provided with a return spring; and the gear is synchronously and rotatably connected with the pivot and the side plate, wherein the gear and the rack are in mesh transmission along the lifting path of the drive rod. The guide wheel capable of being automatically folded, provided by the invention, has the characteristics of simple structure and high reliability.

Description

technical field [0001] The invention relates to a guide wheel, in particular to an automatically foldable guide wheel and a folding mechanism for the guide wheel. Background technique [0002] The towed concrete pump needs to move in a short distance with the help of guide wheels. The guide wheels mainly play the role of support and steering. In the process, it can better avoid obstacles. [0003] In order to make the structure of the guide wheel more compact, it is required that its rising stroke should be as short as possible, and at the same time, the distance between the bottom of the guide wheel and the ground should be as large as possible. Usually, the guide wheel is designed in a foldable form. Before the guide wheel descends, the wheel Unfolding, the guide wheel can be lowered for a small distance to contact the ground. When the guide wheel rises, the wheel is folded, and the guide wheel rises for a small distance so that the bottom of the guide wheel has a larger ...

Claims

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Application Information

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IPC IPC(8): B60B33/00
Inventor 郑云魏昕谢红杰
Owner SANY HEAVY IND CO LTD (CN)
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