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Imbeded type electric hoister

A car crane and embedded technology, applied in the direction of lifting frame, lifting device, etc., can solve the problems of unsafety, safety and maintenance hidden dangers, time-consuming and other problems, and achieve the effect of ensuring safe use and timely maintenance

Inactive Publication Date: 2004-11-10
岑健萸
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method of operation is time-consuming and unsafe
[0005] 3. Pneumatic crane; no synchronization, self-locking function, poor safety and reliability
[0006] 4. Hydraulic crane: no synchronization, self-locking function, heavy maintenance workload, poor safety and reliability
[0008] The embedded electric crane disclosed in Chinese patent ZL99254544.7 adopts an externally thre

Method used

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  • Imbeded type electric hoister

Examples

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Effect test

Example Embodiment

[0017] Referring to Figure 1 and Figure 2, the embedded electric car crane includes the following components:

[0018] 1) Machine base: including frame type bearing frame 27, bearing frame cover plate 56, fixed on the bottom plate of the bearing frame, sleeve 22 for supporting the lifting cylinder, gear box 17 and reducer 36 In the illustrated example, the gearbox 17 is fixed to the bottom of the sleeve 22 by bolts and tie rods 41. The gear box 17 has a driven gear 19 and a driving gear 38 that mesh with each other. The driven gear 19 is coaxial with the sleeve 22. The driving gear 38 is installed on the output shaft of the reducer 36. The reducer can adopt a cycloidal pin wheel. Reducer or gear speed or worm gear reducer.

[0019] 2) Lifting mechanism:

[0020] It includes a screw 25 coaxially sleeved from inside to outside, a lifting cylinder 13, a rotating cylinder 15 and an oil cylinder 7 whose bottom is sealed with an end cover 3. The axis coincides with the axis of the sleev...

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Abstract

The invention is a buried electric vehicle erector, including a bearing frame, a sleeve supporting lift tube and fixed on the bottom baseboard of the bearing frame, and gear box and reducer, and the lift mechanism includes screw, lift tube, rotary tube and oil tube, coaxially covered together from inside to outside, the lift tube is supported on the bearing nut screwed on the rotary screw rod, under the bearing nut is a safety nut screwed on the screw rod and loosely cooperating with the lift tube through key. When it does not work, the lift tube withdraws in the base plate, and the whole erector can be buried underground or under the basic surface. When used, by gear transfer, the reducer drives the rotary tube and the screw rod connected with the rotary tube to rotate, here, the lift tube rises and falls along the guide block. When the bearing nut are worn and shaved, the screw rod directly applies force on the safety nut, at this moment, the safety nut breaks away from the key so as to cause the idling of both the safety nut and the screw rod, thus the lift tube can not rise or fall any longer, and as a result it can both ensure the use safety and timely maintenance and repair.

Description

technical field [0001] The invention relates to a lifting and lifting machine. Background technique [0002] Since the development of self-owned railways, the lifting equipment and methods used for the manufacture and maintenance of railway locomotives, passenger cars, freight cars, subways and light rail vehicles are as follows: [0003] 1. Jack: Manual operation is not only labor-intensive, but also extremely poor in safety and reliability. [0004] 2. Driving: Use driving to lift the vehicle and put it on the iron horse for operation. This kind of operation method is time-consuming and unsafe. [0005] 3. Pneumatic crane; no synchronization, self-locking function, poor safety and reliability. [0006] 4. Hydraulic crane: no synchronization, self-locking function, heavy maintenance workload, poor safety and reliability. [0007] 5. Conventional electric crane: It has synchronization and self-locking functions, and is safe and reliable. Howeve...

Claims

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Application Information

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IPC IPC(8): B66F7/00
Inventor 岑健萸汪若瀛
Owner 岑健萸
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