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A car lifting device and a car lifting method

A technology for car seat and car body, applied in the field of car lifting, can solve the problems of slip wire, high quality requirements, thread wear, etc., and achieve the effect of less welding seams, and the process of loading, unloading, and lifting is firm and reliable.

Active Publication Date: 2019-03-05
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This lifting method has high requirements on the quality of the multiple welds at the connection between the screw and the car body, and non-destructive testing is required to ensure that there are no defects, and the threaded fit between the screw sleeve and the screw has the potential for repeated lifting for a long time. Thread wear, slipping wires and other unsafe hidden dangers

Method used

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  • A car lifting device and a car lifting method
  • A car lifting device and a car lifting method
  • A car lifting device and a car lifting method

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] Such as Figure 1 to Figure 3 As shown, a car lifting device is placed in a car lifting seat (not shown in the figure), including a housing 1, an anti-drop pin 4, a screw 6, and a lifting lug 7, and the screw 6 passes through the shells of the hollow structure in sequence. The body 1 and the anti-off pin 4, the end of the screw 6 is fixed relative to the housing 1 with a lock nut 9, and the tail is fixed with a round nut 3 to prevent the anti-off pin 4 from falling off from the tail of the screw 6, and the rotation of the screw 6 drives the anti-off pin 4 Move upward along the lifting device and contact the inner wall of the lifting seat to prevent falling off.

[0029] Such as Figure 1 to Figure 2 As shown, the housing 1 is a hollow structure, which is recommended to be cylindrical in the embodiment of the present invention...

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Abstract

The invention provides a vehicle lifting device. The vehicle lifting device is placed in a vehicle lifting base. The vehicle lifting device comprises a shell, an anti-dropping pin, a threaded rod and a lifting lug. The threaded rod sequentially penetrates through the shell and the anti-dropping pin which are each of a hollow structure. The end of the threaded rod is fixed in the opposite position of the shell through a locknut, a round nut is fixed to the tail of the threaded rod, and thus the anti-dropping pin is prevented from dropping off from the tail of the threaded rod. The threaded rod rotates to drive the anti-dropping pin to move upwards along the vehicle lifting device and make contact with the inner wall of the vehicle lifting base so that drop prevention can be achieved. Meanwhile, the invention provides a vehicle lifting method using the vehicle lifting device. According to the vehicle lifting device and the vehicle lifting method provided by the invention, the strength is enough, the anti-dropping function is achieved, and the vehicle body lifting process is fast, safe and reliable.

Description

technical field [0001] The invention relates to a vehicle lifting device in the hoisting process of a rail vehicle body and a vehicle lifting method using the vehicle lifting device. Background technique [0002] The hoisting and transportation of the low-floor vehicle body of the traditional rail vehicle adopts threaded cooperation between the screw sleeve and the screw rods located at the four corners of the upper side beam of the low-floor vehicle to realize the lifting and transportation of the vehicle body. This lifting method has high requirements on the quality of the multiple welds at the connection between the screw and the car body, and non-destructive testing is required to ensure that there are no defects, and the threaded fit between the screw sleeve and the screw has the potential for repeated lifting for a long time. The thread is worn out, and there are unsafe hidden dangers such as slipping wires. Contents of the invention [0003] The main purpose of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66C1/22
CPCB66C1/22
Inventor 宁海石万帅赵延强何智勇刘永刚高明晶
Owner CRRC QINGDAO SIFANG CO LTD
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