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Hydraulic lifting device, hydraulic lifting system with hydraulic lifting device and lifting cargo carrying platform

A hydraulic lifting device and technology of hydraulic lifting, applied in the direction of lifting device, fluid pressure actuating device, lifting frame, etc., can solve the problems of occupying the carrying space of the vehicle, increasing the weight of the vehicle and the transportation cost, and reducing the carrying space and improving the Transportation economic benefits, volume and weight reduction effect

Active Publication Date: 2021-09-07
CRRC YANGTZE GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, since the hoisting equipment is provided with the vehicle, it occupies the carrying space of the vehicle and increases the weight of the vehicle and the transportation cost.

Method used

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  • Hydraulic lifting device, hydraulic lifting system with hydraulic lifting device and lifting cargo carrying platform
  • Hydraulic lifting device, hydraulic lifting system with hydraulic lifting device and lifting cargo carrying platform
  • Hydraulic lifting device, hydraulic lifting system with hydraulic lifting device and lifting cargo carrying platform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] This embodiment provides a hydraulic lifting device.

[0053] Such as Figure 1 to Figure 14 As shown, the hydraulic lifting device includes a double-acting hydraulic cylinder 110 , an upper support 120 , a lower support 130 and a cylinder head support 140 .

[0054] Such as Figure 4 , Figure 5 As shown, the double-acting hydraulic cylinder 110 includes a cylinder body, a piston rod 111 and a valve block. The free end of the piston rod 111 is provided with a piston rod ball head 112 , the end of the piston rod ball head 112 is provided with an end plane 113 , and the middle part of the end plane 113 is provided with a ball head fixing screw hole 114 .

[0055] The double-acting hydraulic cylinder 110 is a standard general-purpose double-acting hydraulic cylinder 110, and a special cylinder can also be used according to specific requirements. In order to facilitate debugging and maintenance, two auxiliary adjustment holes with check valves are set on the valve bloc...

Embodiment 2

[0071] This embodiment provides a hydraulic lifting system.

[0072] Such as Figure 15 As shown, the hydraulic lifting system includes four hydraulic lifting devices 100 provided in Embodiment 1, and a hydraulic system that supplies hydraulic oil to the double-acting hydraulic cylinders 110 of each hydraulic lifting device 100 .

[0073] The hydraulic system includes a vehicle-mounted hydraulic oil circuit 300 and an external hydraulic station 200 set separately from it, wherein:

[0074] The on-board hydraulic oil circuit 300 includes a hydraulic locking element 310 arranged in front of each double-acting hydraulic cylinder 110 to make it expand and contract smoothly, a hydraulic synchronizing element 320 arranged on the hydraulic oil circuit to make each double-acting hydraulic cylinder 110 expand and contract synchronously, and a control double-acting hydraulic cylinder. The hydraulic reversing element 330 for switching the direction of hydraulic oil in and out of the cyl...

Embodiment 3

[0100] This embodiment provides an elevating cargo loading platform.

[0101] Such as Figure 16 ~ Figure 24 As shown, the lifting cargo platform includes a fixed platform 500, a lifting platform 600, a platform bracket 700 and the hydraulic lifting system provided in Embodiment 2.

[0102] Such as Figure 18 , Figure 19 As shown, the fixed platform 500 is composed of the lower floor 520, the lower longitudinal beam 530, the lower beam 540, the platform side column 510, the upper longitudinal beam 550, the upper beam 560, the lifting lug 570, the side column reinforcement plate 580, and the support rope bolt 590, goods rope bolt 660 etc. are formed.

[0103] Among them, the lower floor 520, the lower longitudinal beam 530, the lower beam 540, the platform side column 510, the side column rib 580, the upper longitudinal beam 550, and the upper beam 560 form a solid frame structure after welding, and the lifting lug 570 It is used to hoist the lifting cargo platform to the ...

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Abstract

The invention discloses a hydraulic lifting device, a hydraulic lifting system with the hydraulic lifting device and a lifting cargo carrying platform. The hydraulic lifting device comprises a double-acting hydraulic cylinder, a lower support arranged on the lower portion of the double-acting hydraulic cylinder and used for supporting the double-acting hydraulic cylinder, an upper support separated from the double-acting hydraulic cylinder and a cylinder head support used for fixing the double-acting hydraulic cylinder. The hydraulic lifting system comprises four hydraulic lifting devices and a hydraulic system for providing hydraulic oil for the double-acting hydraulic cylinders of the hydraulic lifting devices; the hydraulic system comprises a vehicle-mounted hydraulic oil way and an external hydraulic station separated from the vehicle-mounted hydraulic oil way; and the vehicle-mounted hydraulic oil way comprises a hydraulic locking element, a hydraulic synchronizing element and a hydraulic reversing element. The lifting cargo carrying platform comprises a fixed platform, a lifting platform, a platform bracket and the hydraulic lifting system. The hydraulic lifting device and the hydraulic system which are split are adopted, so that the size and the dead weight of a vehicle-mounted part are greatly reduced, and the transportation economic benefits are improved.

Description

technical field [0001] The invention relates to an elevating cargo loading platform, in particular to a hydraulic lifting device, a hydraulic lifting system with the same and an elevating cargo loading platform. Background technique [0002] The lifting cargo platform is mainly used in railway vehicles, automobile vehicles or construction machinery for transporting goods. During use, it needs to adapt to the transportation conditions and adjust the height of the lifting platform up and down, but the frequency of adjustment is low, usually several days It is even adjusted every hundreds of days. The adjustment is usually carried out at a fixed loading and unloading station, and the conditions are harsh during operation. [0003] In the prior art, the lifting of such platforms mainly adopts the following two methods: [0004] 1) At the loading and unloading station, use cranes, forklifts and other machinery to lift the platform and adjust it to a suitable height, then use the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66F7/20B66F7/28B66F3/25B66F3/26B66F3/46F15B11/22F15B13/06
CPCB66F7/20B66F7/28B66F3/25B66F3/26B66F3/46F15B11/22F15B13/06
Inventor 石峰刘凤伟史春江臧俊杰王首雄刘海涛何世球王松
Owner CRRC YANGTZE GRP CO LTD
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