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Opening hydraulic wrench

A hydraulic wrench, hydraulic cylinder technology, applied in the direction of wrenches, wrenches, screwdrivers, etc., can solve the problems of limited use scenarios, complex use environment conditions, slow tightening speed, etc. effect of exit

Pending Publication Date: 2020-08-18
JIANGSU JINLING INST OF INTELLIGENT MFG CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the shapes and lengths of various threaded workpieces are different, and the operating environment conditions are also relatively complicated.
However, the existing hydraulic wrench is in the closed form, suitable for regular edge shapes, and the tightening speed is slow, so its usage scenarios are greatly restricted

Method used

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  • Opening hydraulic wrench
  • Opening hydraulic wrench
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0042] The embodiment of the present invention provides an open-end hydraulic wrench, whose structure refers to Figure 1 to Figure 3As shown, the open-end hydraulic wrench 1 provided by the example of the present invention has two left and right handles, wherein the left handle 3 can be changed between vertical and horizontal states, and the left end of the right handle 4 is provided with a control button 6 . Preferably, the left and right handles are hollow cylinders, which are convenient to hold and reduce the overall weight of the hydraulic wrench. The reaction rod 5 is fixed in the mounting hole integrated with the housing 2 through the fixing knob 7 . Preferably, the reaction rod 5 is arranged on the right side of the housing 2 in this embodiment, so that the hydraulic wrench 1 can directly use the adjacent fixed workpiece 26 on the front side of the reaction rod to counteract the counterclockwise tightening reaction torque during use. The open hydraulic wrench 1 of the...

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Abstract

The invention discloses an opening hydraulic wrench. The opening hydraulic wrench is mainly composed of a motor-opening gear set mechanism, a hydraulic cylinder-ratchet wheel and pawl mechanism, a clamping mechanism, a reset mechanism, an arrival mechanism, a shell, a cover plate, a handle and a counter-force rod. The motor-opening gear set mechanism is driven by a hydraulic motor or motor, an opening gear set is used for driving an opening gear to continuously rotate, and the rapid screwing-on procedure is finished. The hydraulic cylinder-ratchet wheel and pawl mechanism is driven by a hydraulic cylinder, a ratchet wheel and pawl mechanism is used for pushing an opening ratchet wheel to intermittently rotate, and the preset-torque tight buckling procedure is finished. The clamping mechanism can conduct reliable clamping on a to-be-installed target, the reset mechanism is used for hydraulic wrench reverse rotating and positioning, and the arrival mechanism controls the maximum stroke of the hydraulic cylinder. According to the opening hydraulic wrench, the thread connecting process is divided into the screwing-on part and the tight buckling part which are achieved through the motor-opening gear set mechanism and the hydraulic cylinder-ratchet wheel and pawl mechanism, and tightening can be rapidly finished on the premise that the needed tightening torque is guaranteed.

Description

technical field [0001] The invention relates to a hydraulic wrench, in particular to an open hydraulic wrench suitable for screw connection. Background technique [0002] Threaded connections are widely used in modern industry, construction and other industries because of their reliability, convenience and detachability. However, the shapes and lengths of various threaded workpieces are different, and the operating environment conditions are also relatively complicated. However, the existing hydraulic wrench is in the closed form, suitable for regular edge shapes, and the tightening speed is slow, so its usage scenarios are greatly limited. The tightening of the thread can be divided into two processes, the make-up process requiring small torque but long rotation stroke, and the tightening process requiring large torque but short rotation stroke. In order to solve the above problems, it is necessary to develop a portable open hydraulic wrench with small size and light weig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25B21/00B25B23/00
CPCB25B21/00B25B23/00B25B21/004B25B21/005
Inventor 李侃刘昇李骏王保国黄伟陈俊远郭登飞曹克丰刘训茂童章顺
Owner JIANGSU JINLING INST OF INTELLIGENT MFG CO LTD
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