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Pincer head resetting mechanism of open type power pincers

A reset mechanism and power tong technology, applied in drilling equipment, earthwork drilling, drill pipe, etc., can solve the problems of rapid wear, inconvenient switching and reset, etc., and achieve the effects of reducing wear, reasonable structure, and convenient switching and reset

Pending Publication Date: 2020-02-25
江苏如石机械股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a pliers head reset mechanism for open-type power tongs, which solves the above-mentioned existing technical problems of inconvenient switch and reset and rapid wear during braking

Method used

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  • Pincer head resetting mechanism of open type power pincers
  • Pincer head resetting mechanism of open type power pincers
  • Pincer head resetting mechanism of open type power pincers

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Embodiment Construction

[0016] Such as figure 1 As shown, the present invention proposes a pincer head resetting mechanism of an open-type power tong, including a rotary mechanism 5, a lifting mechanism 6, and a braking mechanism 3. The lifting mechanism 6 is installed on the body of the power tong, and the lifting mechanism 6 and the power tong The brake disc 2 and the floating body 4 are all connected with the slewing mechanism 5, and the brake disc 2 on the power caliper and the brake band fixing column 7 are all connected with the brake mechanism 3.

[0017] Among them, such as image 3 As shown, the lifting mechanism 6 includes a lifting slide frame 22, a lifting cylinder 23 and a guide bracket 24. The guide bracket 24 is fixedly mounted on the body of the power tong, and the guide bracket 24 is provided with a sliding groove. In the groove, the lifting cylinder 23 connects the lifting slide frame 22 and the guide bracket 24 through the upper hinge pin 21 and the lower hinge pin 25, and the sle...

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Abstract

The invention provides a pincer head resetting mechanism of open type power pincers. The pincer head resetting mechanism of the open type power pincers comprises a rotating mechanism, a lifting mechanism and a braking mechanism, wherein the lifting mechanism is arranged on a pincer body of the power pincers, the lifting mechanism, a brake disc on the power pincers and a floating body are all connected with the rotating mechanism, and the brake disc on the power pincers and a brake band fixing column are both connected with the braking mechanism. The pincer head resetting mechanism of the opentype power pincers has the advantages of facilitating switching and resetting and reducing the abrasion of a brake band.

Description

technical field [0001] The invention relates to a resetting mechanism of a pincer head of a power tong, in particular to a resetting mechanism of an open type power tong used in oil and gas mine operations. Background technique [0002] Generally, when the cam clamping caliper head clamps the pipe string, the brake disc and the floating body will rotate at a certain angle relative to each other, so that the relative position of the brake disc and the floating body will change; During the shackle action, the brake disc and the floating body must first be restored to the initial alignment position of the opening. Therefore, a resetting mechanism is provided on the pliers head, and switching and resetting are usually carried out by inserting and pulling positioning pins or turning the opening sleeve. The disadvantage is that it must be manually operated nearby and cannot be automated. To realize the relative rotation of the brake disc and the floating body, a brake band needs ...

Claims

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Application Information

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IPC IPC(8): E21B19/16
CPCE21B19/163
Inventor 刘志刚缪红建陈杰仲建军姜永兵朱留建王宏军陆海涛
Owner 江苏如石机械股份有限公司
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