Aerial work platform

A high-altitude work platform and work platform technology, applied in the direction of lifting device, lifting frame, etc., can solve the problems of paint damage on the surface of the car body, prone to accidents, platform drop, etc., to improve the safe work area, ensure platform safety, and overall simple structure

Active Publication Date: 2014-01-29
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some operating platforms use telescopic devices, but when the telescopic part bears a large load, the lifting platform will rollover, which may easily lead to accidents
In addition, the lifting power source of most aerial work platforms is mainly driven by a single cylinder. If the pressure of the oil cylinder suddenly disappears, the platform will suddenly drop, which is prone to accidents.
Some movable lifting platforms use fuel engines as power sources, seriously affecting the air quality in the workshop
The locomotive roof assembly needs to be carried out after the car body shell is painted, and the improper operation of the telescopic platform will also cause damage to the car body surface paint

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as Figure 1 to Figure 3 As shown, an aerial work platform is used for locomotive roof assembly, including a platform chassis 1 , a traveling device, a lifting device, a working platform and a control unit 33 .

[0027] The control unit 33 controls the movement of the walking device, the lifting of the lifting device and the expansion and contraction of the work platform. The control unit 33 is connected to an operable control panel 2. The control panel 2 is arranged on the work platform to facilitate construction personnel to operate the control panel 2. The control unit 33 also has a remote controller, through the sending and receiving of remote control signals, realizes the remote control to walking gear, hoisting gear and work platform, makes the operation simpler and more convenient.

[0028] The operating platform includes a fixed platform 3 and a mobile platform 4, and the mobile platform 4 is arranged on the fixed platform 3. In order to ensure that the mob...

Embodiment 2

[0047] The difference from Embodiment 1 is that two mobile platforms 4 are arranged on the fixed platform 3, which are respectively telescopic in two directions forward and backward. The platform power transmission mechanism 36 adopts a bidirectional telescopic mechanism, and the piston rods on both sides of the bidirectional telescopic mechanism respectively It is fixedly connected with the two mobile platforms 4, and four platform power transmission mechanisms 36 can also be used. The bottom of each mobile platform 4 is fixedly connected with two platform power transmission mechanisms 36 to realize bidirectional expansion and contraction.

[0048] In order to avoid rollover accidents and ensure safe operation, in this embodiment, there are four ground support feet 25, and one ground support foot 25 is set at the four corners of the platform chassis 1. According to the telescopic direction of the mobile platform 4, the control phase The two ground legs 25 on the corresponding ...

Embodiment 3

[0050] The difference from Embodiment 1 is that the X-shaped scissor arm 11 can slide to both sides, and the bottommost first-stage inner scissor member 13 and first-stage outer scissor member 14 are all slidably connected to the platform chassis 1 A roller 19 is provided at the ends of the first-stage inner scissor member 13 and the first-stage outer scissor member 14, and a guide groove 20 is provided on the upper surface of the platform chassis 1. When the X-shaped scissor arm 11 is on When lifting under the drive of the lifting power hydraulic cylinder 12, the roller 19 slides in the guide groove 20. Both the top end of the top fourth-level inner scissor member 13 and the top end of the fourth-level outer scissor member 14 can be slidably connected to the lower surface of the fixed platform 3. The structure of the sliding connection is the same as above, and the guide groove 20 is fixed on the lower surface of the fixed platform 3, thereby ensuring the continuity and stabi...

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PUM

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Abstract

The invention relates to an aerial work platform. The aerial work platform comprises a platform chassis, a walking device, a lifting device, a work platform and a control unit. The work platform comprises a fixed platform and a movable platform, the movable platform can horizontally move in a telescopic mode towards at least one direction on the fixed platform, and the fixed platform is connected to the top of the lifting device. The aerial work platform is characterized in that the platform chassis is connected with at least one telescopic ground supporting foot supported on the ground, and the telescopic direction of the ground supporting foot is the same as that of the movable platform. The aerial work platform is simple in structure, has the functions of planar moving, longitudinal lifting and transverse telescoping, enables a scissor-type lifting platform to move flexibly, and facilitates timely work. Through change of the position of the supporting foot, the safety work area of the work platform is obviously increased, and the accidents of side turning and the like due to the fact that the side surface bears much are effectively prevented.

Description

technical field [0001] The invention relates to an aerial work platform, in particular to an aerial work platform used for the roof operation of railway vehicles. Background technique [0002] Existing mobile aerial work platforms mainly include traveling devices, lifting devices and operating platforms. Most of the operating platforms are directly above the lifting devices, and the operating range is relatively limited. Some work platforms use telescopic devices, but when the telescopic part bears a large load, the lifting platform will roll over, which may easily lead to accidents. In addition, the lifting power source of most aerial work platforms is mainly driven by a single cylinder. If the pressure of the oil cylinder suddenly disappears, the platform will suddenly drop, which is prone to accidents. Some movable lifting platforms use fuel engines as the power source, which seriously affects the air quality of the workshop. The locomotive roof assembly needs to be car...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F7/06B66F7/28
Inventor 法子利赵秀林孙笃玲王俊玲冯文文
Owner CRRC QINGDAO SIFANG CO LTD
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