CN211314690U - Hydrostatic control system for underground concrete mixer truck of coal mine - Google Patents
Hydrostatic control system for underground concrete mixer truck of coal mine Download PDFInfo
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- CN211314690U CN211314690U CN202020838902.3U CN202020838902U CN211314690U CN 211314690 U CN211314690 U CN 211314690U CN 202020838902 U CN202020838902 U CN 202020838902U CN 211314690 U CN211314690 U CN 211314690U
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Abstract
The utility model discloses a quiet hydraulic control system of colliery underground concrete mixer, relate to the concrete mixer technical field, including hydraulic tank, still include variable plunger pump, control valve, switching-over valve and variable motor, the oil supplementing port B mouth of variable plunger pump pass through hydraulic line and the hydraulic tank link to each other, the F mouth of variable plunger pump with the F mouth of control valve links to each other, the Y, Z mouth of variable plunger pump respectively with the A, B mouth of control valve links to each other, and control through the control valve, the P, S mouth of variable plunger pump is connected the A, B mouth of variable motor is used for driving the variable motor; and the A, B port of the reversing valve is respectively connected with the X2 port and the X1 port of the control valve. Under the conditions of underground moisture and much dust, the effect of ensuring the normal operation of the transmission mechanism is realized.
Description
Technical Field
The utility model relates to a concrete mixer truck technical field especially relates to a quiet hydraulic control system of colliery underground concrete mixer truck.
Background
At present, most concrete mixing transport vehicles for underground coal mine operation adopt a mechanical transmission mode, and can cause the clamping stagnation of a transmission mechanism under the conditions of underground moisture and dust, so that the failure rate is high, and the use cost is increased. Therefore, a hydrostatic drive system is urgently needed to replace the traditional mechanical transmission system.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a quiet hydraulic control system of colliery underground concrete mixer truck under the condition of moist, many dusts in the pit, the realization can guarantee the effect of drive mechanism normal operating.
In order to achieve the effect, the utility model discloses a hydrostatic drive system of a concrete mixing transport vehicle under a coal mine, which comprises a hydraulic oil tank, a variable plunger pump, a control valve, a reversing valve and a variable motor, wherein an oil supplementing port B of the variable plunger pump is connected with the hydraulic oil tank through a hydraulic pipeline, a port F of the variable plunger pump is connected with a port F of the control valve, a port Y, Z of the variable plunger pump is respectively connected with a port A, B of the control valve and is controlled through the control valve, and a port P, S of the variable plunger pump is connected with a port A, B of the variable motor and is used for driving the variable motor; and the A, B port of the reversing valve is respectively connected with the X2 port and the X1 port of the control valve.
Further, a filter is arranged between the hydraulic oil tank and the variable displacement plunger pump.
The utility model provides a quiet hydraulic drive system of colliery underground concrete mixing transport vechicle utilizes engine drive variable plunger pump, links to each other variable plunger pump and variable motor through hydraulic pressure pipeline, drives variable motor, and variable motor dress provides the moment of torsion for the transaxle on the transaxle, and transaxle drive engineering vehicle goes forward. The reversing valve and the control valve provide accurate control, and guarantee is provided for stable operation of the engineering vehicle.
Simultaneously has the following advantages:
1. the hydraulic transmission can output large thrust or large torque, and can realize low-speed large-tonnage movement, which is a prominent advantage that other transmission modes cannot compare.
2. The hydraulic transmission can conveniently realize stepless speed regulation, has a large speed regulation range, and can regulate the speed in the operation process of the engineering vehicle.
3. Under the same power condition, the hydraulic transmission device has small volume, light weight and compact structure. The hydraulic elements can be connected by pipelines or integrated, the layout and installation of the hydraulic elements are very flexible, and a complex system which is difficult to form by other transmission modes can be formed.
4. The hydraulic transmission can make the movement of the actuating element very uniform and stable, and the moving part has no reversing impact when reversing. And because the reaction speed is high, frequent reversing can be realized.
5. The operation is simple, the adjustment and control are convenient, the overload protection is convenient to realize, and the use is safe and reliable. Because the moving parts in each hydraulic element all work in the fluid, can lubricate by oneself, the life of component is long.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is obvious that the drawings in the following description are some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic view of the hydraulic oil circuit of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The first embodiment is as follows:
the hydrostatic driving system of the underground concrete mixing carrier vehicle for the coal mine as shown in fig. 1 comprises a hydraulic oil tank 1, a variable plunger pump 2, a control valve 3, a reversing valve 4 and a variable motor 5, wherein an oil supplementing port B of the variable plunger pump 2 is connected with the hydraulic oil tank 1 through a hydraulic pipeline, a port F of the variable plunger pump 2 is connected with a port F of the control valve 3, ports Y, Z of the variable plunger pump 2 are respectively connected with a port A, B of the control valve 3 and are controlled through the control valve 3, and a port P, S of the variable plunger pump 2 is connected with a port A, B of the variable motor 5 and is used for driving the variable motor 5; the A, B ports of the reversing valve 4 are respectively connected with the X2 and the X1 ports of the control valve 3.
Example two:
the hydrostatic driving system of the underground concrete mixing carrier vehicle for the coal mine as shown in fig. 1 comprises a hydraulic oil tank 1, a variable plunger pump 2, a control valve 3, a reversing valve 4 and a variable motor 5, wherein an oil supplementing port B of the variable plunger pump 2 is connected with the hydraulic oil tank 1 through a hydraulic pipeline, a port F of the variable plunger pump 2 is connected with a port F of the control valve 3, ports Y, Z of the variable plunger pump 2 are respectively connected with a port A, B of the control valve 3 and are controlled through the control valve 3, and a port P, S of the variable plunger pump 2 is connected with a port A, B of the variable motor 5 and is used for driving the variable motor 5; the A, B ports of the reversing valve 4 are respectively connected with the X2 and the X1 ports of the control valve 3. Wherein a filter 6 is arranged between the hydraulic oil tank 1 and the variable displacement plunger pump 2.
In the using process, the technical scheme includes that the hydraulic oil tank 1 is used, hydraulic oil reaches a port B of the variable plunger pump 2 through the filter 6 to be used as oil supplement of the variable plunger pump, a port A of the variable plunger pump 2 is connected to a port P of the control valve 3, and a port F of the control valve 3 is connected to a port F of the variable plunger pump 2 to finish oil supplement of the variable plunger pump 2. The port X of the control valve 3 is connected to the port P of the reversing valve 4 to provide pressure oil for the reversing valve 4. When the handle of the reversing valve 4 is turned to the left side, hydraulic oil flows into a port P of the reversing valve 4 from a port X of the control valve 3, then flows out of the port A of the reversing valve 4 and is connected to a port X2 of the control valve 3 to push a valve core to reverse, pressure oil flows into a port Y of the variable displacement plunger pump 2 from the port B of the control valve 3 to push a piston of the variable displacement plunger pump 2 to move, the inclination angle of a swash plate is changed, high-pressure hydraulic oil flows out of the port P of the variable displacement plunger pump 2 to enter a port A of the variable displacement motor 5, low-pressure hydraulic oil flows into a port S of the variable displacement plunger pump 2 from the port B of the variable displacement motor 5, the hydrostatic energy of the process variable displacement plunger pump 2 is transmitted to the variable displacement motor 5, and the variable displacement motor 5 converts the hydrostatic energy into mechanical energy to drive a drive bridge to drive the engineering vehicle to. And conversely, the handle of the reversing valve 4 is turned to the right side, and the engineering vehicle moves backwards.
The innovation point of the system is the design of the control valve 3, the traveling speed of the engineering vehicle depends on the rotating speed of the engine and the displacement of the variable displacement plunger pump 2, the displacement of the variable displacement plunger pump 2 depends on the pressure difference of Y, Z ports on the variable displacement plunger pump 2, when the rotating speed of the engine is increased, the flow of the P port of the control valve 3 is increased, the opening degree of the NV1 valve on the control valve 3 is set to be proper, the pressure difference of the Y, Z ports can be linearly and stably increased along with the increase of the rotating speed of the engine, the swash plate angle of the variable displacement plunger pump 2 starts to change when the rotating speed of the engine set by us is reached, namely, the vehicle can start to run when the rotating speed of the engine set by us is reached, and the speed is smoothly and maximally increased along with the gradual increase.
The above-mentioned embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (2)
1. The utility model provides a quiet hydraulic control system of colliery underground concrete mixer, includes hydraulic tank (1), its characterized in that: the hydraulic control system is characterized by further comprising a variable plunger pump (2), a control valve (3), a reversing valve (4) and a variable motor (5), wherein an oil supplementing port B of the variable plunger pump (2) is connected with the hydraulic oil tank (1) through a hydraulic pipeline, a port F of the variable plunger pump (2) is connected with a port F of the control valve (3), a port Y, Z of the variable plunger pump (2) is respectively connected with a port A, B of the control valve (3) and is controlled through the control valve (3), and a port P, S of the variable plunger pump (2) is connected with a port A, B of the variable motor (5) and is used for driving the variable motor (5); and an A, B port of the reversing valve (4) is respectively connected with an X2 port and an X1 port of the control valve (3).
2. The hydrostatic control system of the underground coal mine concrete mixer truck according to claim 1, wherein: and a filter (6) is also arranged between the hydraulic oil tank (1) and the variable plunger pump (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020838902.3U CN211314690U (en) | 2020-05-19 | 2020-05-19 | Hydrostatic control system for underground concrete mixer truck of coal mine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020838902.3U CN211314690U (en) | 2020-05-19 | 2020-05-19 | Hydrostatic control system for underground concrete mixer truck of coal mine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211314690U true CN211314690U (en) | 2020-08-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020838902.3U Active CN211314690U (en) | 2020-05-19 | 2020-05-19 | Hydrostatic control system for underground concrete mixer truck of coal mine |
Country Status (1)
| Country | Link |
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| CN (1) | CN211314690U (en) |
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2020
- 2020-05-19 CN CN202020838902.3U patent/CN211314690U/en active Active
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