Torque multiplier

A technology of torque multiplier and final stage, which is applied in the field of wrenches, can solve the problems of not being able to meet the requirements of operations in places with limited space, and achieve the effects of simple operation, high safety factor, and high strength

Inactive Publication Date: 2014-06-11
江苏金立电子机械科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional manual method of tightening bolts with a wrench is definitely unable to meet the requirements, especially the requirements of operations in places with limited space. Therefore, the development of torque multipliers has become an urgent research topic.

Method used

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Embodiment Construction

[0017] The present invention will be further described below according to the accompanying drawings and in conjunction with the embodiments.

[0018] Such as figure 1 and figure 2 As shown, a torque multiplier includes an input transmission shaft 5, a mounting cover 9 is arranged outside the transmission input shaft 5, a ratchet 8 and a shaft retaining spring 4 are arranged between the transmission input shaft 5 and the mounting cover 9, and the ratchet 8 is fixed by the limit pin 7, and the side of the transmission input shaft 5 is also provided with a reversing rod 6; the terminal gear of the input transmission shaft 5 and the first-stage planetary gear 12 fixed on the first-stage planetary carrier 10 by the first-stage planetary pin 11 Combination, the gear at the end of the first-stage planet carrier 10 is combined with the final-stage planetary gear 13 fixed on the final-stage planetary carrier 1 by the final-stage planetary pin 14; the outer ring of the final-stage pla...

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Abstract

The invention discloses a torque multiplier and belongs to the technical field of wrenches. The torque multiplier comprises an input transmission shaft, a mounting cover is arranged outside the input transmission shaft, a ratchet and a shaft snap spring, the ratchet is fixed through a limit pin, and one side of the transmission input shaft is provided with a reversing lever; the tail gear of the input transmission shaft is engaged with a first planet gear, which is fixed onto a first-stage planet carrier through a first-stage planet pin, and the tail gear of the first-stage planet carrier is engaged with a last-stage planet gear, which is fixed onto a last-stage planet carrier through a last-stage planet pin; a gear ring is arranged on the outer ring of the last-stage planet carrier, and rolling pins are arranged between the last-stage planet carrier and the gear ring; an external reducer gearbox is arranged under the mounting cover and above the last-stage planet carrier, the first-stage planet carrier and the gear ring, an inner snap spring is arranged between the mounting cover and the reducer gearbox, and another inner snap spring is arranged between the gear ring and the reducer gearbox. The torque multiplier can be used in cooperation with a manual torque wrench, thereby simplifying highly-difficult operations, achieving high-torque assembly of bolts and nuts and obtaining a high security coefficient.

Description

technical field [0001] The invention belongs to the technical field of wrenches and relates to a torque multiplier. Background technique [0002] With the continuous construction of large-capacity and high-voltage transmission lines, steel pipe towers with large carrying capacity and good comprehensive performance have been used in transmission line engineering unprecedentedly. In order to fully reflect the good performance of the steel pipe tower and ensure the safety of the line, it is particularly important that the flange connection bolts of the steel pipe main material be evenly stressed. However, the traditional manual method of tightening bolts with a wrench certainly cannot meet the requirements, especially the requirements of operations in places with limited space. Therefore, the development of torque multipliers has become an urgent research topic. Contents of the invention [0003] The object of the present invention is to solve the problems existing in the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B17/02
CPCB25B17/02B25B13/467
Inventor 方士君魏绍明
Owner 江苏金立电子机械科技有限公司
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