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Jacking equipment capable of achieving uniform coating of grease

A coating and jacking technology, used in mechanical equipment, lifting equipment safety devices, lifting devices, etc., can solve the problems of nuts and lead screws not being lubricated, wasteful, difficult to retain grease, etc., and achieve good lubrication conditions. Effect

Pending Publication Date: 2022-01-25
BEIJING RAILWAY INST OF MECHANICAL & ELECTRICAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the nut is loaded, it is difficult to inject grease into the threaded meshing surface of the nut, and it is also difficult to retain grease. At the same time, the deflection between the nut and the screw is large, which also affects the uniformity of oil injection, resulting in a gap between the nut and the screw. Without good lubrication, in addition, a large amount of grease injected will be squeezed out by the nut and cause waste, and it is also very easy to pollute the environment in the crane and the maintenance workshop

Method used

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  • Jacking equipment capable of achieving uniform coating of grease
  • Jacking equipment capable of achieving uniform coating of grease

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 As shown, this embodiment provides a jacking device capable of evenly applying grease, including a guide assembly 1 , a support assembly 2 , an unloaded application assembly 3 and an oil supply assembly.

[0037]Wherein, the guide assembly 1 extends vertically, and the support assembly 2 is movably sleeved on the guide assembly 1 along the vertical direction. When using the jacking device, the support assembly 2 is supported under the mechanism to be lifted, and the support assembly 2 can hold up the mechanism to be lifted when it moves up relative to the guide assembly 1, and the guide assembly 1 can be a part of the mechanism to be lifted. Vertical movement acts as a guide. The no-load coating assembly 3 is sleeved on the guide assembly 1 and connected above the support assembly 2. When the support assembly 2 moves up and down relative to the guide assembly 1, the no-load coating assembly 3 can be synchronized with the support assembly 2 Moving up a...

Embodiment 2

[0047] This embodiment provides a jacking device capable of evenly applying grease, which is different from Embodiment 1 in that no additional connecting piece 4 is provided in this embodiment to connect the supporting assembly 2 and the unloaded coating assembly 3 . A first connection ring 51 is coaxially provided on the side of the no-load coating assembly 3 facing the support assembly 2 , and a second connection ring 52 is coaxially provided on the side of the support assembly 2 facing the no-load coating assembly 3 . see figure 2 The first connecting ring 51 is convexly provided with a plurality of limiting protrusions 511 in the circumferential direction, and the inner wall of the second connecting ring 52 is concavely provided with a plurality of limiting grooves 521 along the circumferential direction, and the limiting protrusions 511 are vertically inserted one by one. It is disposed in the limiting groove 521 , and there is a gap between the limiting protrusion 511 a...

Embodiment 3

[0049] This embodiment provides a jacking device capable of evenly applying grease, which is different from Embodiment 1 in that no additional connecting piece 4 is provided in this embodiment to connect the supporting assembly 2 and the unloaded coating assembly 3 . Instead, a plurality of connecting pins are arranged vertically on the side of the supporting assembly 2 facing the unloaded coating assembly 3, and a plurality of vertically extending pin holes are arranged on the side of the unloaded coating assembly 3 facing the bearing assembly. The plurality of connecting pins correspond to the plurality of pin holes one by one, and each connecting pin is inserted into the corresponding pin hole, and there is a gap between the hole wall of the pin hole. The cooperation of the connecting pin and the pin hole can make the unloaded coating assembly 3 move up or down with the supporting assembly 2 . And because there is a gap between the connecting pin and the hole wall of the pi...

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PUM

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Abstract

The invention belongs to the technical field of jacking equipment, and discloses jacking equipment capable of achieving even coating of grease. The jacking equipment comprises a guide assembly, a supporting assembly, a no-load coating assembly and an oil supply assembly, wherein the guide assembly extends in the vertical direction, and the supporting assembly is vertically and movably arranged on the guide assembly in a sleeving mode. The supporting assembly is supported below the to-be-jacked mechanism, and the bearing assembly can be used for supporting the to-be-jacked mechanism when moving upwards relative to the guide assembly. The the no-load coating assembly is arranged on the guide assembly in a sleeving mode, and connected to the upper portion of the supporting assembly; in the jacking process, the supporting assembly bears the gravity load of the to-be-jacked mechanism; although the no-load coating assembly and the supporting assembly are synchronously moved upwards, the no-load coating assembly runs in a no-load mode, and therefore the no-load coating assembly and the guide assembly are not deflected on the axis; lubricating grease between the no-load coating assembly and the supporting assembly cannot be extruded out, and therefore the grease coating uniformity is guaranteed; and the abrasion of the supporting assembly is reduced, and pollution to equipment and the surrounding environment is avoided.

Description

technical field [0001] The invention relates to the technical field of jacking equipment, in particular to jacking equipment capable of uniformly coating grease. Background technique [0002] Jacking equipment is widely used in the machinery industry. Its function is to hold up the mechanism to be lifted, so that a certain operating space is formed under the mechanism to be lifted. [0003] Exemplarily, in the transportation industry, vehicles need to be regularly inspected. When the transportation vehicle enters the workshop for maintenance, it needs to lift the vehicle body by the crane, so that the rolling stock can be inspected and repaired. The crane includes a vertically arranged lead screw and a nut sheathed on the lead screw, and a bracket is connected to the nut. When jacking up, support the bracket on the bottom of the car body, and drive the screw to rotate around its own axis, so that the nut can drive the bracket to move up to realize the jacking of the car bo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F3/08B66F17/00B66F13/00F16N7/00
CPCB66F3/08B66F17/00B66F13/00F16N7/00
Inventor 程远雄黎莎程利波
Owner BEIJING RAILWAY INST OF MECHANICAL & ELECTRICAL ENG