Unlock instant, AI-driven research and patent intelligence for your innovation.

Hydraulic pulse tool having shutoff function

An oil pressure pulse, power tool technology, applied in power tools, lightweight impact tools, manufacturing tools, etc., can solve the problems of complex components, affecting the normal use of tools, and pressure exceeding a predetermined value.

Active Publication Date: 2015-04-15
TRANMAX MACHINERY
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned speed breaking mechanism mainly uses the pressure of the working oil as the driving source, and the pressure of the working oil is easily affected by the locking operation, so that the pressure sometimes exceeds the predetermined value prematurely, or cannot be in a stable state during the operation. Therefore, there will be a misjudgment situation that the speed will be cut off before reaching the rotational torque, which will affect the normal use of the tool
Furthermore, the components of the above-mentioned speed-stopping mechanism are relatively complicated, and the assembly is not easy, which increases the overall cost of the tool, and the application range of the controllable torque is relatively limited.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hydraulic pulse tool having shutoff function
  • Hydraulic pulse tool having shutoff function
  • Hydraulic pulse tool having shutoff function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The applicant first explains here that in the embodiments to be described below and the contents of the drawings, the same reference numerals represent the same or similar elements or structural features. Secondly, when it is mentioned that one element is arranged on another element, it means that the aforementioned element is directly arranged on the other element, or that the aforementioned element is indirectly arranged on the other element, that is, there is also a or multiple other elements.

[0019] Please see first Figure 1 to Figure 3 As shown, a preferred embodiment of the present invention provides an oil pressure pulse electric tool 10 with a speed-off function, mainly taking a hand-held electric tool 10 as an example. The electric tool 10 has a housing 12, and the housing 12 includes A power supply unit 20 , a drive unit 30 , an oil pressure pulse type torque generating unit 40 , and a circuit element 50 . The power supply unit 20 can be a lithium battery...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A hydraulic pulse tool includes a power supply unit, a drive unit electrically connected to the power supply unit, a hydraulic pulse torque generating unit coupled to the drive unit and rotatable by the drive unit to produce impacts for causing the drive to produce an electric current change, and a control unit for judging the electric current change and controlling the operation of the drive unit subject to the judgment result. Subject to the above-stated technical characteristics, the hydraulic pulse tool, in addition to the shutoff function, can reduce errors in judgment and achieve multi-stage torque output control.

Description

technical field [0001] The invention relates to electric tools, in particular to an oil pressure pulse electric tool with a speed-off function. Background technique [0002] In the field of pneumatic or electric tools that can produce impact force, they can be divided into two types: direct impact type and oil pressure pulse type. Since the oil pressure pulse type tool uses oil pressure to generate fastening torque, the use of driving components Long service life, and because the noise and vibration generated by the hydraulic pulse tool are small, and can prevent the problem of over-tightening, the hydraulic pulse tool has been widely used in the industry. [0003] In order to be able to control the output torque of the hydraulic pulse tool, a shutdown mechanism (shutoff mechanism) is usually provided inside the tool. For example, US5,080,181 patent is mainly used in the hydraulic impact torque generator 5, when the bushing 8 When the high pressure is generated by rotation,...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B25D16/00B25D17/00
CPCB25B23/1453B25B21/02B25B23/1475
Inventor 陈新吉
Owner TRANMAX MACHINERY