CN214728392U

CN214728392U - Hydraulic lifting system of wide mining vehicle

Info

Publication number: CN214728392U
Application number: CN202121105915.0U
Authority: CN
Inventors: 袁希先; 李鸿儒
Original assignee: Hubei Jiaheng Technology Co ltd
Current assignee: Hubei Jiaheng Technology Co ltd
Priority date: 2021-05-22
Filing date: 2021-05-22
Publication date: 2021-11-16
Anticipated expiration: 2031-05-22

Abstract

The utility model discloses a hydraulic lifting system of a wide mining truck, which relates to the technical field of mining trucks and comprises a steering oil cylinder, a steering gear, a priority valve, a lifting oil cylinder, a first power takeoff, a second power takeoff, a limiting air valve, a control air valve, an air storage tank and an oil return tank; the steering oil cylinder, the steering gear, the priority valve, the first power takeoff and the oil return tank are sequentially connected through a pipeline; the limiting air valve, the control air valve, the second power takeoff and the oil return box are sequentially connected through a pipeline; the gas storage tank is connected with the control gas valve through a pipeline; the split pneumatic control distribution multi-way valve comprises an explosion-proof valve and an overflow valve which are connected; the explosion-proof valve is respectively connected with the lifting oil cylinder, the limiting air valve and the control air valve; the overflow valve is respectively connected with the priority valve and the second power takeoff.

Description

Hydraulic lifting system of wide mining vehicle

Technical Field

The utility model relates to a mining car technical field, specifically a wide body mining car hydraulic pressure system of lifting.

Background

The wide-body mining vehicle is used in a large scale in mines due to the load-carrying capacity of the wide-body mining vehicle, and the hydraulic control of the wide-body mining vehicle needs to be safe and explosion-proof. The existing designed integral pneumatic control distribution multi-way valve can only be installed on a special support due to heavy weight, and a hydraulic lifting system cannot realize explosion prevention.

Referring to fig. 1, the conventional hydraulic lifting system for a wide-body mining truck comprises a steering oil cylinder 1, a steering gear 2, a priority valve 3, an integral pneumatic control distribution multi-way valve 4, a lifting oil cylinder 5, a first power takeoff 6, a second power takeoff 7, a limit air valve 8, a control air valve 9, an air storage tank 10 and an oil return tank 11; the steering oil cylinder 1, the steering gear 2, the priority valve 3, the first power takeoff 6 and the oil return tank 11 are connected in sequence through pipelines; the limit air valve 8, the control air valve 9, the second power takeoff 7 and the oil return box 11 are sequentially connected through pipelines; the gas storage tank 10 is connected with the control gas valve 9 through a pipeline; the integral pneumatic control distribution multi-way valve 4 is respectively connected with the lifting oil cylinder 5, the priority valve 3, the second power takeoff 7, the limit air valve 8 and the control air valve 9. The return oil of the steering oil cylinder 1, the return oil of the lifting oil cylinder 5 and the overflow of the integral pneumatic control distribution multi-way valve 4 during the work pass through an oil filter of an oil tank and enter an oil tank 11; because integral gas accuse distribution multiple unit valve 4 can not directly install on the hydro-cylinder, can only install on oil tank or frame through the multiple unit valve installing support, though the system is with low costs, lifts efficiently, but the shortcoming is obvious: firstly, a high-pressure pipeline of the oil inlet cylinder cannot be explosion-proof; secondly, the valve body is easy to shake to generate noise during confluence and distribution; and designing a special mounting bracket.

SUMMERY OF THE UTILITY MODEL

To the defect that exists among the prior art, the utility model aims to provide a wide body mining truck hydraulic pressure lifts system can rationally install hydraulic pressure and lift the system, reaches safety, explosion-proof purpose.

In order to achieve the above purpose, the utility model adopts the technical proposal that: a hydraulic lifting system of a wide-body mining truck comprises a steering oil cylinder, a steering gear, a priority valve, a lifting oil cylinder, a first power takeoff, a second power takeoff, a limiting air valve, a control air valve, an air storage tank and an oil return tank; the steering oil cylinder, the steering gear, the priority valve, the first power takeoff and the oil return tank are sequentially connected through a pipeline; the limiting air valve, the control air valve, the second power takeoff and the oil return box are sequentially connected through a pipeline; the gas storage tank is connected with the control gas valve through a pipeline; the split pneumatic control distribution multi-way valve comprises an explosion-proof valve and an overflow valve which are connected; the explosion-proof valve is respectively connected with the lifting oil cylinder, the limiting air valve and the control air valve; the overflow valve is respectively connected with the priority valve and the second power takeoff.

The further improvement lies in that: the explosion-proof valve is arranged on the lifting oil cylinder, and an A port of the explosion-proof valve is directly connected with the lifting oil cylinder.

The further improvement lies in that: the overflow valve is directly installed on the oil return tank, and a T1 port of the overflow valve is directly connected with the oil return tank.

The further improvement lies in that: the port P of the overflow valve is connected with the second power takeoff through a pipeline, the port P1 of the overflow valve is connected with the port EF of the priority valve through a pipeline, the port A of the overflow valve is connected with the port P of the explosion-proof valve through a pipeline, and the port T of the explosion-proof valve is connected with the oil return tank through a pipeline.

The further improvement lies in that: the P port of the priority valve is connected with the first power takeoff through a pipeline, the LS port of the priority valve is connected with the LS port of the steering gear through a pipeline, the CF port of the priority valve is connected with the CF port of the steering gear through a pipeline, the L port of the steering gear and the R port of the steering gear are respectively connected with the steering oil cylinder through pipelines, and the T port of the steering gear is connected with the oil return tank through a pipeline.

The further improvement lies in that: the port A of the limiting air valve is connected with the explosion-proof valve through a pipeline, and the port P of the limiting air valve is connected with the control air valve through a pipeline.

The beneficial effects of the utility model reside in that:

the explosion-proof valve in the split type pneumatic control distribution multi-way valve has light weight and can be directly installed on the lifting oil cylinder; the overflow valve is arranged on the oil tank (no separate bracket is needed), wherein the overflow valve overflows and directly enters the oil tank; the return oil of the steering oil cylinder and the return oil of the lifting oil cylinder enter the oil tank through an oil filter of the oil tank. The utility model has the advantages of it is following: firstly, the system is explosion-proof; flow converging is stable, and noise is low; overflow in advance and energy conservation; fourthly, the lifting efficiency is high.

Drawings

FIG. 1 is a schematic view of a prior art hydraulic lifting system for a wide body mining vehicle;

fig. 2 is the embodiment of the utility model provides an in the wide body mining truck hydraulic pressure lift system's schematic diagram.

Reference numerals:

the hydraulic lifting device comprises a steering oil cylinder 1, a steering gear 2, a priority valve 3, an integral pneumatic control distribution multi-way valve 4, a split pneumatic control distribution multi-way valve 40, an explosion-proof valve 41, an overflow valve 42, a lifting oil cylinder 5, a first power takeoff 6, a second power takeoff 7, a limit air valve 8, a control air valve 9, an air storage tank 10 and an oil return tank 11.

Detailed Description

Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout.

In the description of the present invention, it should be noted that, for the orientation words, such as the terms "center", "lateral (X)", "longitudinal (Y)", "vertical (Z)", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and the positional relationship are indicated based on the orientation or the positional relationship shown in the drawings, and the description is only for convenience of describing the present invention and simplifying the description, but not for indicating or implying that the device or the element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and "a plurality" or "a plurality" in the description of the invention means two or more unless a specific definition is explicitly provided.

The technical solution and the advantages of the present invention will be more clear and clear by further describing the embodiments of the present invention with reference to the drawings of the specification. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.

Referring to fig. 2, an embodiment of the present invention provides a hydraulic lifting system for a wide-body mining vehicle, including a steering cylinder 1, a steering gear 2, a priority valve 3, a lifting cylinder 5, a first power takeoff 6, a second power takeoff 7, a limiting air valve 8, a control air valve 9, an air storage tank 10, and an oil return tank 11; the steering oil cylinder 1, the steering gear 2, the priority valve 3, the first power takeoff 6 and the oil return tank 11 are connected in sequence through pipelines; the limit air valve 8, the control air valve 9, the second power takeoff 7 and the oil return box 11 are sequentially connected through pipelines; the gas storage tank 10 is connected with the control gas valve 9 through a pipeline; the hydraulic lifting system of the wide body mining vehicle further comprises a split pneumatic control distribution multi-way valve 40, wherein the split pneumatic control distribution multi-way valve 40 comprises an anti-explosion valve 41 and an overflow valve 42 which are connected; the explosion-proof valve 41 is respectively connected with the lifting oil cylinder 5, the limiting air valve 8 and the control air valve 9; the relief valve 42 is connected to the priority valve 3 and the second power takeoff 7, respectively.

Specifically, the explosion-proof valve 41 is installed on the lifting cylinder 5, and the port a of the explosion-proof valve 41 is directly connected with the lifting cylinder 5. The relief valve 42 is directly mounted on the oil return tank 11, and the T1 port of the relief valve 42 is directly connected to the oil return tank 11. In this embodiment, the port P of the overflow valve 42 is connected to the second power takeoff 7 through a pipeline, the port P1 of the overflow valve 42 is connected to the port EF of the priority valve 3 through a pipeline, the port a of the overflow valve 42 is connected to the port P of the explosion-proof valve 41 through a pipeline, and the port T of the explosion-proof valve 41 is connected to the oil return tank 11 through a pipeline.

Specifically, a port P of the priority valve 3 is connected with the first power takeoff 6 through a pipeline, a port LS of the priority valve 3 is connected with a port LS of the steering gear 2 through a pipeline, a port CF of the priority valve 3 is connected with a port CF of the steering gear 2 through a pipeline, a port L of the steering gear 2 and a port R of the steering gear 2 are respectively connected with the steering cylinder 1 through pipelines, and a port T of the steering gear 2 is connected with the oil return tank 11 through a pipeline.

Specifically, the port a of the limiting air valve 8 is connected with the explosion-proof valve 41 through a pipeline, and the port P of the limiting air valve 8 is connected with the control air valve 9 through a pipeline.

In the description of the specification, reference to the description of "one embodiment," "preferably," "an example," "a specific example" or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention, and schematic representations of the terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

With the above structure and principle in mind, those skilled in the art should understand that the present invention is not limited to the above embodiments, and all modifications and substitutions based on the present invention and adopting the known technology in the art are within the scope of the present invention, which should be limited by the claims.

Claims

1. A hydraulic lifting system of a wide-body mining truck comprises a steering oil cylinder (1), a steering gear (2), a priority valve (3), a lifting oil cylinder (5), a first power takeoff (6), a second power takeoff (7), a limiting air valve (8), a control air valve (9), an air storage tank (10) and an oil return tank (11); the steering oil cylinder (1), the steering gear (2), the priority valve (3), the first power takeoff (6) and the oil return tank (11) are sequentially connected through pipelines; the limiting air valve (8), the control air valve (9), the second power takeoff (7) and the oil return box (11) are sequentially connected through pipelines; the air storage tank (10) is connected with the control air valve (9) through a pipeline; the method is characterized in that: the device also comprises a split pneumatic control distribution multi-way valve (40), wherein the split pneumatic control distribution multi-way valve (40) comprises an explosion-proof valve (41) and an overflow valve (42) which are connected; the explosion-proof valve (41) is respectively connected with the lifting oil cylinder (5), the limiting air valve (8) and the control air valve (9); the overflow valve (42) is respectively connected with the priority valve (3) and the second power takeoff (7).

2. The wide body mining vehicle hydraulic lifting system of claim 1, wherein: the explosion-proof valve (41) is arranged on the lifting oil cylinder (5), and an A port of the explosion-proof valve (41) is directly connected with the lifting oil cylinder (5).

3. The wide body mining vehicle hydraulic lifting system of claim 1, wherein: the overflow valve (42) is directly installed on the oil return tank (11), and a T1 port of the overflow valve (42) is directly connected with the oil return tank (11).

4. The wide body mining vehicle hydraulic lifting system of claim 1, wherein: the P port of the overflow valve (42) is connected with the second power takeoff (7) through a pipeline, the P1 port of the overflow valve (42) is connected with the EF port of the priority valve (3) through a pipeline, the A port of the overflow valve (42) is connected with the P port of the explosion-proof valve (41) through a pipeline, and the T port of the explosion-proof valve (41) is connected with the oil return tank (11) through a pipeline.

5. The wide body mining vehicle hydraulic lifting system of claim 1, wherein: the P port of the priority valve (3) is connected with a first power takeoff (6) through a pipeline, the LS port of the priority valve (3) is connected with the LS port of the steering gear (2) through a pipeline, the CF port of the priority valve (3) is connected with the CF port of the steering gear (2) through a pipeline, the L port of the steering gear (2) and the R port of the steering gear (2) are respectively connected with the steering oil cylinder (1) through pipelines, and the T port of the steering gear (2) is connected with the oil return tank (11) through a pipeline.

6. The wide body mining vehicle hydraulic lifting system of claim 1, wherein: the A port of the limiting air valve (8) is connected with the explosion-proof valve (41) through a pipeline, and the P port of the limiting air valve (8) is connected with the control air valve (9) through a pipeline.