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Locking device for scissor-type hydraulic lifting platform

A technology of hydraulic lifting platform and locking device, which is applied in the direction of lifting device, lifting frame, transmission device, etc.

Inactive Publication Date: 2012-06-13
XIAN AEROSPACEMOTOR MACHINE FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003]In order to overcome the deficiency that the hydraulic components in the prior art cannot realize long-term self-locking under heavy load, or to avoid using hydraulic components for long-term self-locking under heavy load In the case of a lock, the present invention proposes a locking device for a scissor-type hydraulic lifting platform

Method used

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  • Locking device for scissor-type hydraulic lifting platform
  • Locking device for scissor-type hydraulic lifting platform
  • Locking device for scissor-type hydraulic lifting platform

Examples

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Embodiment Construction

[0030] This embodiment includes a hydraulic motor 1, a reducer 2, a lead screw 11, a lock nut 8 and a connecting rod shaft system.

[0031] like figure 1 , figure 2 , image 3 , Figure 4 shown. The hydraulic motor 1 is directly connected to the reducer 2, and the reducer 2 is installed on the driving base 3 with bolts, and the driving base 3 is fixed on one end of the platform 15 at the bottom of the elevating support by bolts. The reducer 2 is connected to the lead screw 11 through the coupling 4; the middle part of the lead screw 11 passes through the connecting rod shaft 10 of the lifting bracket 13 through the lead screw guide sleeve 9; the square lock nut 8 is set on the lead screw 11 and is located on One side of the connecting rod shaft 10. The square lock nut 8 is placed on the flat plate 7; the flat plate 7 is fixed on the platform 15 of the lifting bracket by screws. When the lead screw 11 rotates and drives the lock nut 8 to rotate accordingly, due to the r...

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Abstract

The invention discloses a locking device for a scissor-type hydraulic lifting platform. A reducer (2) is connected with a screw rod (11) through a coupling (4); the middle part of the screw rod (11) passes through a connecting rod shaft (10) of a lifting support (13); a square locking nut (8) is sleeved on the screw rod (11) and is positioned on one side of the connecting rod shaft (10); the square locking nut (8) is arranged on a flat plate (7) which is fixed on a platform (15) of the lifting support (13) and is used for preventing the locking nut (8) from rotating and making the locking nut(8) axially linearly move under the driving of the screw rod (11); and one end of the screw rod (11) close to the reducer (2) is provided with a thrust bearing (6). The locking device realizes mechanical self-locking in a hydraulic lifting system, is particularly suitable for places with heavy load and requiring long-time locking, can effectively overcome the defect that a hydraulic element cannot realize long-time self-locking under heavy load in the prior art, protects the hydraulic element and guarantees simple, convenient, safe and reliable operation.

Description

technical field [0001] The invention relates to a component of a lifting device, in particular to a locking device of a scissor type hydraulic lifting platform. [0002] Background technique [0003] The scissor hydraulic lifting platform is a kind of cargo lifting equipment with good lifting stability and wide application range. Relying on hydraulic cylinders and hydraulic locks, the platform can generally stay in the air for a short time for general aerial operations, but for heavy loads of more than 5 tons, it is required to keep self-locking in the air for several days or even dozens of days, and it is not allowed after self-locking. There are highly variable working conditions, and the general scissor hydraulic lifting platform cannot achieve long-term self-locking due to internal leakage of hydraulic cylinders and hydraulic locks. [0004] Contents of the invention [0005] In order to overcome the deficiency that the hydraulic components in the prior art cannot re...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66F7/28B66F7/08F16H25/20F16H21/12
Inventor 朱敏哲房华杨东海胡燕琳
Owner XIAN AEROSPACEMOTOR MACHINE FACTORY
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