Synchronizing circuit of flow distributing and collecting valve for two-column gantry lifter

A technology of diverting and collecting valve and lift, which is applied in mechanical equipment, fluid pressure actuating device, servo motor, etc., can solve the problems of the speed and displacement of the hydraulic cylinder rising and falling, which are not easy to synchronize, and achieve simple structure and deviation correction. Powerful, easy-to-manufacture effects

Inactive Publication Date: 2014-12-10
芜湖高昌液压机电技术有限公司
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  • Summary
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  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the problem that the rising and falling speeds and displacements of the hydraulic cylinders are not easy to be synchronized during the working process of the existing two-column gantry lift, the present inventi

Method used

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  • Synchronizing circuit of flow distributing and collecting valve for two-column gantry lifter

Examples

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Example Embodiment

[0016] Example 1

[0017] Such as figure 1 As shown, the two-column gantry lift shunting and collecting valve synchronization circuit includes oil tank 1, hydraulic pump 2, overflow valve 3, reversing valve 4, hydraulic cylinder 5, hydraulic control check valve 6, shunting and collecting valve 7, The inlet oil pipe of the hydraulic pump 2 is connected to the oil tank 1, the outlet oil pipe is respectively connected to the overflow valve 3 and the reversing valve 4, and the return pipes of the overflow valve 3 and the reversing valve 4 are connected to the oil tank 1. The diverting and collecting valve 7 is connected to the B port of the reversing valve 4. The hydraulic control check valve 6 is connected in series on the connecting oil circuit of the hydraulic cylinder 5 and the diverting and collecting valve 7. The hydraulic control check valve The control oil circuit of 6 is connected to the A oil port of the reversing valve 4.

[0018] The reversing valve 4 is a three-position...

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Abstract

The invention discloses a synchronizing circuit of a flow distributing and collecting valve for a two-column gantry lifter and belongs to the field of hydraulic transmission. The two-column gantry lifter comprises an oil tank, a hydraulic pump, an overflow valve, a reversing valve, hydraulic cylinders, hydraulic control one-way valves and the flow distributing and collecting valve. An inlet oil pipe of the hydraulic pump is connected with the oil tank, an outlet oil pipe is respectively connected with the overflow valve and a reversing valve, an oil return pipe of the overflow valve and the reversing valve is connected with the oil tank, the flow distributing and collecting valve is connected with an oil port B of the reversing valve, the hydraulic control one-way valves are serially connected on connecting oilways of the hydraulic cylinders and the flow distributing and collecting valve, and control oilways of the hydraulic control one-way valves are connected on an oil port A of the reversing valve. The synchronizing circuit solves the problem that during operating of the two-column gantry lifter, ascending and descending speed and displacement are less synchronous of the hydraulic cylinders, and has the advantages of simple structure, reasonableness in design and manufacturability.

Description

technical field [0001] The invention belongs to the field of hydraulic transmission, and more specifically relates to a synchronous circuit of a hydraulic system of a lift. Background technique [0002] With the continuous development of the automobile industry, automobile repair and maintenance has gradually become a new industry. Among them, the lift, as an important tool in the process of car repair and maintenance, has also developed rapidly. The lift is mainly to raise the car from a safe height to another safe height, so as to facilitate manual operation and maintenance. At present, there are many types of lifts, which can be divided into mechanical transmission and hydraulic transmission according to the transmission mode. The mechanical transmission structure is simple and the price is cheap, but the lifting weight is limited, and the lead screw or working nut is prone to slipping, which poses a great safety hazard. The hydraulic transmission lift has good safety ...

Claims

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Application Information

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IPC IPC(8): F15B13/02F15B11/02
Inventor 高昌六
Owner 芜湖高昌液压机电技术有限公司
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