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Mine truck lifting prohibition walking hydraulic system

A technology for hydraulic systems and mine vehicles, which is applied in hoisting devices, fluid pressure actuating devices, servo motors, etc., to ensure walking safety and improve safety performance

Inactive Publication Date: 2015-08-05
CHANGZHOU DEV & MFR CENT
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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 propose a hydraulic system for lifting and prohibiting travel of a mining vehicle in which the vehicle cannot be shifted forward when the carriage is lifted.

Method used

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  • Mine truck lifting prohibition walking hydraulic system
  • Mine truck lifting prohibition walking hydraulic system

Examples

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Embodiment 1

[0009] See figure 1 and figure 2 , The mining vehicle has a front frame and a rear frame, the rear frame is provided with a lifting seat 11, and the lifting seat 11 is connected with a compartment 12.

[0010] The hydraulic system for lifting and prohibiting walking of the mining vehicle includes a fuel tank 1, a first hydraulic pump 2, a manual reversing valve 3, a lifting cylinder 4, a second hydraulic pump 5, a power cut-off valve 6, a gear selection operation valve 7, and a forward gear Clutch 8, reverse gear clutch 9. The select operation valve 7 includes a joystick 7-1. Lifting oil cylinder 4 controls elevating seat 11 lifting, and elevating seat 11 drives compartment 12 lifting, and the action of lifting oil cylinder 4 is controlled by manual reversing valve 3, and manual reversing valve 3 is installed on the carriage 12.

[0011] The oil inlets of the first hydraulic pump 2 and the second hydraulic pump 5 are connected with the oil tank 1, the oil outlet of the fi...

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Abstract

The invention discloses a mine truck lifting prohibition walking hydraulic system. The mine truck lifting prohibition walking hydraulic system comprises an oil tank, a first hydraulic pump, a manual reversing valve, a lifting oil cylinder, a second hydraulic pump, a power cutoff valve, a gear selection operation valve, an advancing gear clutch and a retreating gear clutch, wherein the gear selection operation valve comprises an operation rod; an oil outlet of the first hydraulic pump is connected with an oil inlet P of the manual reversing valve; execution ports A and B of the manual reversing valve are respectively connected with a rod cavity and a rodless cavity of the lifting oil cylinder; the rodless cavity of the lifting oil cylinder is connected with a control port K of the power cutoff valve; an oil inlet P and an execution port A of the power cutoff valve are respectively connected with an oil outlet of the second hydraulic pump and an oil inlet P of the gear selection operation valve; and execution ports A and B of the gear selection operation valve are respectively connected with the advancing gear clutch and the retreating gear clutch. When a carriage is in a lifting state, a mine truck cannot engage a gear to advance, so that the mine truck can safely pass through a place with smaller height to guarantee the walking safety.

Description

technical field [0001] The invention relates to a mining vehicle lifting prohibition hydraulic system. Background technique [0002] There are many high-altitude installation operations in coal mines, such as the installation of power cables and communication signal cables, and the installation of wind and water pipes. When engaging in these high-altitude installation operations, it is necessary to drive the mining vehicle to the installation site and control the lift by operating the manual reversing valve. The lifting cylinder moves, so that the vehicle compartment is lifted, and the personnel carry out installation work in the lifted compartment. In the actual operation process, it often happens that the compartment is still in the lifting state, and the driver shifts gears to drive the vehicle, while the coal mine downhole damper The height of places such as other places is low again, and collision accident takes place easily, and above-mentioned mine vehicle has potenti...

Claims

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Application Information

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IPC IPC(8): F15B11/17
CPCF15B11/17B66F11/04
Inventor 伍生宏饶俊良李保琴
Owner CHANGZHOU DEV & MFR CENT
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