Fastening device

A technology of fastening devices and lifting devices, which is applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems of inconvenient use of fastening devices, and achieve the effect of simple operation and convenient use

Active Publication Date: 2015-11-04
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide an automatic tightening fastening device to solve the problem of inconvenient use of the tightening device in the prior art

Method used

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Embodiment Construction

[0019] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0020] Such as figure 1 As shown, the present invention provides a fastening device, which includes a base part 10 , a lifting device 20 , a rotating arm 30 , a support frame 40 and a tightening device 50 . Wherein, the lifting device 20 is disposed on the base portion 10 , and the rotating arm 30 is rotatably connected to the lifting device 20 with the upper end of the lifting device 20 as a rotating shaft. The supporting frame 40 is rotatably arranged on the lifting device 20 with the upper end of the lifting device 20 as a rotating shaft, and the supporting frame 40 is located above the rotating arm 30 . The tightening device 50 is fixedly connected with the rotating arm 30 and detachably ...

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Abstract

The invention provides a fastening device. The fastening device comprises a base part, a lifting device, a rotating arm, a supporting frame and a screwing device. The lifting device is arranged on the base part. The rotating arm is rotationally connected with the lifting device with the upper end of the lifting device as a rotating axle. The supporting frame is rotationally arranged on the lifting device with the upper end of the lifting device as a rotating axle, and the supporting frame is located above the rotating arm. The screwing device is fixedly connected with the rotating arm and detachably connected with the supporting frame. The base part is provided with the lifting device and the rotating arm. The rotating arm is arranged at the upper end of the lifting device and rotationally connected with the lifting device. The supporting arm is arranged at the upper end of the lifting device and arranged above the rotating arm. The rotating arm is provided with the screwing device, and the screwing device is fixedly connected with the rotating arm and detachably connected with the supporting arm. The rotary rotating arm, the supporting frame and the screwing device are arranged. The fastening device is easy to operate, convenient to use and capable of achieving the automatic screwing function.

Description

technical field [0001] The invention relates to the technical field of mechanical manufacturing, in particular to a fastening device. Background technique [0002] In the EMU unloading process, when installing the center pin, use a foot-operated hydraulic lift truck for installation, pre-tighten with a pneumatic wrench and tighten with a long-arm torque wrench, and perform torque operations. During the installation process, all work is done with high torque, and the installation of the central pin will be limited by the working space, which makes the operator's force uneven during the operation, which affects the output accuracy of the torque. Moreover, the use of artificial high-torque operations has increased the labor intensity of the operators, and there are potential safety hazards. Contents of the invention [0003] The main purpose of the present invention is to provide an automatic tightening fastening device to solve the problem of inconvenient use of the tighten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23P19/06
CPCB23P19/066
Inventor 赵成刚李丰魏京利孙笃玲刘志伟许士军邬哲
Owner CRRC QINGDAO SIFANG CO LTD
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