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Bi-stable ratchet mechanism

A ratchet mechanism and bistable technology, applied in the ratchet field, can solve problems such as poor braking effect, incomplete braking, and excessive rotation of the ratchet wheel, and achieve the effect of preventing excessive rotation and good braking effect

Inactive Publication Date: 2015-07-22
宁波宫铁智能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] This ratchet has a one-way braking effect and prevents the ratchet from rotating during transmission. At the same time, this ratchet mechanism also has the following technical problems. This ratchet mechanism can only brake in one direction, that is, it can only After the ratchet rotates, it prevents the ratchet from rotating, but the ratchet cannot achieve braking in the direction of its rotation, and the ratchet is easy to rotate excessively. Especially for some equipment with high transmission precision, the use of traditional ratchets will result in incomplete braking and poor braking effect. bad question

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 , figure 2 As shown, a bistable ratchet mechanism of the present invention is installed on the frame 1 and includes a rotating shaft 100 and a ratchet 110. Here, the ratchet 100 is an external ratchet, and the two ends of the rotating shaft 100 are connected to the frame 1 respectively. The frame 1 is also provided with a conveying device for conveying workpieces, the conveying device is connected with the rotating shaft 100, and a mounting plate 200 is also fixedly installed on the outer wall of the frame 1, and one end of the rotating shaft 100 runs through the frame 1 and the mounting plate 200 and A transmission part is formed on the outside of the mounting plate 200, and the ratchet 110 is sleeved on the transmission part and is fixedly connected with the transmission part. Through the mounting plate 200, the rotating shaft 100 can be prevented from moving laterally on the frame 1, and the ratchet 110 surrounds it. The outer surface has three gea...

Embodiment 2

[0044] The principles and partial structures of this embodiment are roughly the same as those of Embodiment 1, the difference being:

[0045] Such as Image 6 , Figure 7 As shown, in this embodiment, the ratchet 110 adopts an internal ratchet structure, and the ratchet 110 includes a ring gear 112 and a fixed plate 113. On the rotating shaft 100, six tooth blocks 111 are evenly distributed on the inner wall of the ring gear 112, the transmission sleeve 130 is located in the accommodating cavity, the push block 132 is against the tooth block 111, and the sprocket 140 drives the transmission sleeve 130 to rotate to push the ratchet 110 forward rotation.

[0046] A fixing seat 230 is installed on the outer wall of the frame 1, and the two ends of the fixing seat 230 are fixedly connected with the outer wall of the frame 1. part 232 , the forward stopper 210 and the reverse stopper 220 are hingedly connected to the two connecting parts 232 through the fixed shaft 233 respectiv...

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Abstract

The invention provides a bi-stable ratchet mechanism, and belongs to the technical field of ratchets. The bi-stable ratchet mechanism solves the technical problems that an existing ratchet can only achieve one-way braking and the stopping effect is poor. According to the technical scheme, the bi-stable ratchet mechanism comprises a rotating shaft, a transmission device and a stopping device. The rotating shaft is provided with a one-way rotating ratchet, and the ratchet is provided with a plurality of gear blocks. The transmission device is adjacent to the ratchet, and the ratchet can rotate when the transmission device makes forward motion. The stopping device is adjacent to the ratchet, and when the gear blocks make contact with the stopping device, the ratchet stops rotating. The transmission device moves reversely so that the stopping device can be pushed to move, and when the stopping device is disengaged from the gear blocks, the ratchet can continue rotating. The stopping device can fix the ratchet when the ratchet is in an intermittent rotating pause state, so that the ratchet achieves braking at the same time in two rotating directions, it is guaranteed that the ratchet can rotate after rotating normally, meanwhile, the ratchet can be prevented from rotating excessively, the braking effect is good, and the bi-stable ratchet mechanism is more guaranteed when serving as a transmission mechanism.

Description

technical field [0001] The invention belongs to the technical field of ratchets, and relates to a ratchet mechanism, in particular to a bistable ratchet mechanism. Background technique [0002] The ratchet mechanism is a common transmission mechanism, which is mainly composed of a rocker, a pawl and an outer ratchet. The rocker is a motion input component, and the ratchet is a motion output component. When the rocker swings in reverse, the pawl hinged on the rod is inserted into the teeth of the ratchet, so that the ratchet rotates through a certain angle at the same time. When the rocker swings continuously back and forth, the ratchet rotates intermittently in one direction. [0003] This ratchet has a one-way braking effect and prevents the ratchet from rotating during transmission. At the same time, this ratchet mechanism also has the following technical problems. This ratchet mechanism can only brake in one direction, that is, it can only After the ratchet rotates, it ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H27/00F16H27/02B65G23/40
CPCF16H27/00B65G23/40F16H27/02
Inventor 杨云林
Owner 宁波宫铁智能科技有限公司