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Double-oil cylinder synchronous system for bridge detection operation vehicle

A synchronous system and bridge detection technology, applied in bridges, bridge parts, bridge construction, etc., can solve the problems of asynchronous double cylinder drive, uncontrolled deployment speed, damage to the working platform, etc., to avoid damage and prevent chattering.

Inactive Publication Date: 2012-06-20
CABR CONSTR MACHINERY TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a double oil cylinder synchronous system of a bridge detection work vehicle, to solve the technical problem that the drive of the double oil cylinders is not synchronous, which may easily cause damage to the working platform; The problem of uncontrollable display speed

Method used

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  • Double-oil cylinder synchronous system for bridge detection operation vehicle
  • Double-oil cylinder synchronous system for bridge detection operation vehicle
  • Double-oil cylinder synchronous system for bridge detection operation vehicle

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Embodiment Construction

[0014] Such as figure 1 , a dual-drive cylinder synchronization system for a bridge inspection vehicle. The two ends of the drive cylinder 2 are respectively hinged with the fixing seat 6 and the U-shaped cross-section work platform 1. Under the action of the drive cylinder 2, the work platform 1 can go around its two sides. The hinge shaft 3 that the top is connected with the fixed seat 6 rotates to complete the retracting action.

[0015] Such as figure 2 , the system at least includes a double drive cylinder 2, a balance valve 5 and two one-way back pressure valves (groups) 4 that individually adjust the back pressure, the double drive cylinder is a double-acting drive cylinder, the two drive cylinders and their oil circuit connections For parallel connection, the one-way back pressure valve is respectively connected between the oil port of the rod chamber of the two driving cylinders and the working oil port of the balance valve, or connected between the oil port of the ...

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Abstract

The invention relates to a double-oil cylinder synchronous system for a bridge detection operation vehicle; the double-oil cylinder synchronous system at least comprises two drive oil cylinders, a balancing valve and two one-way back pressure valves for independently adjusting the back pressure, wherein each drive oil cylinder is a double-acting cylinder, and the two ends of the drive oil cylinder are respectively hinged with a fixed seat and a working platform with one U-shaped section; the two drive oil cylinders and oil ways thereof are connected in parallel; the one-way back pressure valves are respectively connected between rod cavity oil ports of the two drive oil cylinders and a working oil port of the balancing valve or are connected between the rod cavity oil ports of the two drive oil cylinders and a directional valve under the condition of not passing through the balancing valve; and after being intersected, rodless cavity oil ways of the two drive oil cylinders are respectively connected with another working oil port of the balancing valve. A substitute of each one-way back pressure valve is a one-way back pressure valve bank for independently adjusting the back pressure. The double-oil cylinder synchronous system has the beneficial effects that the creeping phenomenon of the working platform when the balancing valve is independently used can be avoided; compared with a closed-loop synchronous control and dynamic balancing valve and other schemes, the double-oil cylinder synchronous system has better economic effect; the synchronism of the oil cylinders at the two sides can be realized; and the damage caused by impact or asynchronism to the working platform can be effectively avoided.

Description

Background technique [0001] The invention relates to a double oil cylinder synchronous system under the condition of small rigidity, which is suitable for deploying the working platform of a bridge inspection vehicle (hereinafter referred to as a bridge inspection vehicle). [0002] The deployment of the existing bridge inspection vehicle working platform is driven by double oil cylinders arranged on both sides of the working platform. Since the working platform has a U-shaped cross-section and poor torsion resistance, the platform rigidity cannot be relied on to achieve balance during the deployment process of the working platform, and the out-of-synchronization of the oil cylinders may easily cause damage to the working platform. In addition, during the deployment process, due to the self-weight of the working platform, the oil cylinder is in a state of tension, which may easily cause the deployment speed to lose control, so it must be controlled. Contents of the invention...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/10
Inventor 罗文龙王涛姚金珂刘贺明陶阳
Owner CABR CONSTR MACHINERY TECH
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