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Lifting and steering control method and system of self-discharging vehicle for rigid mining

A mining dump truck, steering control technology, applied in the direction of fluid steering mechanism, parallel bearing motion vehicles, etc., can solve the problems of overflow power loss, provide flow, etc., and achieve the effect of improving the use of power

Active Publication Date: 2009-02-18
INNER MONGOLIA NORTH HAULER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] As mining vehicles are transfer tools, they turn very frequently, and some mining vehicles use a circuit combining load sensing steering valves and priority valves, which realizes the function of stabilizing the steering flow to a certain extent, making the steering performance more stable and reliable. , but the pumps used in these circuits are quantitative pumps. Since the flow cannot be provided according to the needs of the load, some oil will always return to the oil tank through overflow. These oils will overflow under a certain workload of, therefore, the inevitable overflow power loss

Method used

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  • Lifting and steering control method and system of self-discharging vehicle for rigid mining
  • Lifting and steering control method and system of self-discharging vehicle for rigid mining
  • Lifting and steering control method and system of self-discharging vehicle for rigid mining

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Embodiment Construction

[0021] The main idea of ​​the invention is to realize the steering and compartment lifting actions of the rigid mining dump truck through the load sensing control mode. The load sensing control of the present invention can realize real-time provision of required flow according to different load requirements, and can realize no extra overflow loss during normal steering and cabin lifting.

[0022] In addition, in the steering and lifting hydraulic system of the present invention, except for the steering valve, the lifting direction control valve and the lifting balance valve, other components are integrated on an integral valve block, reducing a large number of pipeline connections, thereby reducing leakage possible.

[0023] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] refer to figure 1 As shown, it is a flow chart of the lifting and steering control method ...

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Abstract

The invention provides a method and a system for controlling the lifting and the steering of a rigid auto unloading vehicle, which are used for controlling the lifting and the steering of the rigid auto unloading vehicle by using a lifting control direction valve and a diversion valve. The method comprises the following steps of: (1) obtaining load sensing signals of the diversion valve and the lifting control direction valve; and (2) providing oil solution to the diversion valve and the lifting control direction valve according to the load sensing signals. The system for controlling the lifting and the steering for the rigid auto unloading vehicle comprises an oil tank, the diversion valve, and the lifting control direction valve, wherein the diversion valve comprises a first load sensing oil way; the lifting control direction valve comprises a second load sensing oil way; the system further comprises a load sensing plunger pump which is provided with a load sensing oil port; and the first load sensing oil way and the second load sensing oil way are respectively connected with the load sensing oil port of the load sensing plunger pump. The invention can supply the real-time flow rate meeting the demand according to the requirements of different loads without extra spill losses.

Description

technical field [0001] The invention belongs to the field of rigid mining dump truck engineering machinery, and in particular relates to a method and system for controlling the lift and steering of a rigid mining dump truck compartment. Background technique [0002] At present, the lifting and steering control system of rigid mining dump trucks usually uses two quantitative pumps to control the lifting and steering respectively. [0003] As mining vehicles are transfer tools, they turn very frequently, and some mining vehicles use a circuit combining load sensing steering valves and priority valves, which realizes the function of stabilizing the steering flow to a certain extent, making the steering performance more stable and reliable. , but the pumps used in these circuits are quantitative pumps. Since the flow cannot be provided according to the needs of the load, some oil will always return to the oil tank through overflow. These oils will overflow under a certain worklo...

Claims

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Application Information

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IPC IPC(8): B60P1/02B62D5/08
Inventor 杨军李来平王逢全孟有平贾占军
Owner INNER MONGOLIA NORTH HAULER