CN218934873U

CN218934873U - Hydrostatic drive multifunctional snow sweeper

Info

Publication number: CN218934873U
Application number: CN202023276099.8U
Authority: CN
Inventors: 郭旻昊; 仇迅; 王正国; 李玉雷; 万永海; 张冠文
Original assignee: Yangzhou Jiying Sanitation Equipment Technology Co ltd
Current assignee: Yangzhou Jiying Sanitation Equipment Technology Co ltd
Priority date: 2020-12-29
Filing date: 2020-12-29
Publication date: 2023-04-28
Anticipated expiration: 2030-12-29

Abstract

The utility model relates to the technical field of snow throwers, in particular to a hydrostatic drive multifunctional snow thrower. The hydraulic control system comprises a closed variable plunger pump, wherein the output end of the closed variable plunger pump is connected with a control system, two ends of the control system are connected with a front wheel hydraulic motor and a rear wheel hydraulic motor in parallel, the front wheel hydraulic motor and the rear wheel hydraulic motor are both connected with an oil tank, and the control system is connected with a servo system. The closed hydrostatic drive system with one pump and two motors is adopted, the pump is connected with the engine, the hydraulic motor is connected with the steering drive axle, hydraulic oil acts on the axle again through the pump to the motor, so that the functions of forward and backward steering and the like of the vehicle are realized, and the main shaft is free from transmission shaft parts and can be used by a rolling brush from the space below the middle frame, so that the change amount is reduced; the servo system is adopted, so that the response speed is high, the work is stable, the anti-interference capability is high, and the energy conservation and the high efficiency are realized.

Description

Hydrostatic drive multifunctional snow sweeper

Technical Field

The utility model relates to the technical field of snow throwers, in particular to a hydrostatic drive multifunctional snow thrower.

Background

With the strong development of airports in recent years and the importance of people on travel efficiency and safety, the airport snow remover needs to be in urgent need in winter, and the airport snow remover needs to be stable at low speed, high in working efficiency, small in noise and small in climbing gradient, and can be provided with a special rolling brush and a snow remover. At present, snow remover in domestic market is mainly formed by refitting truck chassis. Conventional vehicles typically employ an engine coupled clutch transmission, which is coupled to a transfer case via a drive shaft, which is coupled to front and rear axles, respectively, via drive shafts, to thereby effect vehicle actuation.

However, this driving method has the following problems: 1. the traditional mechanical structure is adopted, the rolling brush is difficult to install, or only a small-size rolling brush can be used, the snow removing efficiency is reduced, the chassis is greatly improved by additionally arranging the snow removing device, and the quality of the chassis is influenced due to difficult modification; 2. the running mode is generally only used for general road transportation of automobiles, has no four-wheel drive and four-wheel steering function, has unstable ultra-low running speed, and is obviously unsuitable for the driving mode of the snow remover because the special working environment of the snow remover needs to be provided as the chassis of the snow remover, and the four-wheel can be driven by the chassis of the snow remover.

Disclosure of Invention

The utility model aims to provide a hydrostatic drive multifunctional snow remover, which solves the problems in the background technology.

In order to solve the technical problems, the utility model provides the following technical scheme: the utility model provides a multi-functional snow breaker of hydrostatic drive, includes closed variable plunger pump, closed variable plunger pump output is connected with control system, control system both ends parallelly connected have front wheel hydraulic motor and rear wheel hydraulic motor, front wheel hydraulic motor and rear wheel hydraulic motor all connect the oil tank, control system is connected with servo.

The control system comprises a variable lever I, a high-pressure overflow valve II, an oil supplementing valve I and an oil supplementing valve II, wherein the front wheel hydraulic motor and the rear wheel hydraulic motor are connected in parallel at two ends of the variable lever I, the high-pressure overflow valve I and the high-pressure overflow valve II are connected with each other, the oil supplementing valve I and the oil supplementing valve II are connected with each other and are connected with two ends of the variable lever I in parallel, a pipeline between the high-pressure overflow valve I and the high-pressure overflow valve II is connected with a pipeline between the oil supplementing valve I and the oil supplementing valve II, the oil supplementing overflow valve I, a filter and the oil supplementing overflow valve II are connected with each other, the other end of the filter and the oil supplementing overflow valve I are connected with each other and are connected with an oil supplementing pump, the other end of the oil supplementing pump is connected with the oil tank, and the variable lever I is connected with the oil supplementing pump pipeline.

The servo system comprises a servo valve, a first lever, a second lever, a first proportional valve and a second proportional valve, wherein the first variable lever is respectively connected with the first lever and the servo valve, the servo valve is connected with the second lever, an oil inlet of the servo valve is connected with a pipeline between the first high-pressure overflow valve and the second high-pressure overflow valve, an oil return port of the servo valve is connected with the oil tank, an output end of the servo valve is respectively connected with two ends of the first lever, two ends of the second lever are respectively connected with the first proportional valve and the second proportional valve, and the first proportional valve and the second proportional valve are connected with an oil inlet pipeline of the servo valve.

The front wheel hydraulic motor comprises a variable lever II, a proportional valve III, a safety valve and a flushing valve, wherein the flushing valve and the variable lever II are connected in parallel at two ends of the variable lever I, the variable lever II is connected with the proportional valve III, one end of the proportional valve III is connected with the oil tank, the other end of the proportional valve III is connected with the control system, and the flushing valve is sequentially connected with the safety valve and the oil tank.

The rear wheel hydraulic motor and the front wheel hydraulic motor are identical in structure and are symmetrically arranged.

And a dragging valve is also connected between the two ends of the variable lever.

The control system and the servo system are connected with pressure compensation.

Compared with the prior art, the utility model has the following beneficial effects:

1. the closed hydrostatic drive system with one pump and two motors is adopted, the pump is connected with the engine, the hydraulic motor is connected with the steering drive axle, hydraulic oil acts on the axle again through the pump to the motor, so that the functions of forward and backward steering and the like of the vehicle are realized, and the main shaft is free from transmission shaft parts and can be used by a rolling brush from the space below the middle frame, so that the change amount is reduced;

2. the servo system is adopted, the variable is pushed by the front proportional valve and the back proportional valve, the response speed is high, the work is stable, the anti-interference capability is high, and the energy conservation and the high efficiency are realized.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

fig. 1 is a schematic diagram of a hydraulic system of the present utility model.

In the figure: the hydraulic pump comprises a closed variable plunger pump 1, a control system 2, a front wheel hydraulic motor 3, a rear wheel hydraulic motor 4, a fuel tank 5, a servo system 6, a variable lever 7, a high-pressure overflow valve 8, a high-pressure overflow valve 9, a fuel supplementing valve 10, a fuel supplementing valve 11, a fuel supplementing valve 12, a fuel supplementing overflow valve 13, a fuel supplementing overflow valve 14, a fuel supplementing pump 15, a servo valve 16, a first lever 17, a second lever 18, a proportional valve 19, a proportional valve 20, a pressure compensation 21, a variable lever 22, a proportional valve 23, a safety valve 24, a flushing valve 25 and a dragging valve 26.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, the present utility model provides the following technical solutions: the utility model provides a multi-functional snow breaker of hydrostatic drive, includes closed variable plunger pump 1, and closed variable plunger pump 1 output is connected with control system 2, and control system 2 both ends are parallelly connected with front wheel hydraulic motor 3 and rear wheel hydraulic motor 4, and oil tank 5 is all connected to front wheel hydraulic motor 3 and rear wheel hydraulic motor 4, and control system 2 is connected with servo 6.

The control system 2 comprises a variable lever I7, a high-pressure overflow valve I8, a high-pressure overflow valve II 9, an oil supplementing valve I10 and an oil supplementing valve II 11, wherein the front wheel hydraulic motor 3 and the rear wheel hydraulic motor 4 are connected in parallel at two ends of the variable lever I7, the high-pressure overflow valve I8 and the high-pressure overflow valve II 9 are connected with each other, the oil supplementing valve I10 and the oil supplementing valve II 11 are connected with each other in parallel at two ends of the variable lever I7, a pipeline between the high-pressure overflow valve I8 and the high-pressure overflow valve II 9 is connected with a pipeline between the oil supplementing valve I10 and the oil supplementing valve II 11, the other end of the oil supplementing valve II 13 is connected with the oil tank 5, the other end of the filter 14 and the other end of the oil supplementing overflow valve I12 are connected with each other and are connected with the oil supplementing pump 15, the other end of the oil supplementing pump 15 is connected with the oil tank 5, and the variable lever I7 is connected with the oil supplementing pump 15 in a pipeline.

The servo system 6 comprises a servo valve 16, a first lever 17, a second lever 18, a first proportional valve 19 and a second proportional valve 20, wherein the first variable lever 7 is respectively connected with the first lever 17 and the servo valve 16, the servo valve 16 is connected with the second lever 18, an oil inlet of the servo valve 16 is connected with a pipeline between the first high-pressure overflow valve 8 and the second high-pressure overflow valve 9, an oil return opening of the servo valve 16 is connected with the oil tank 5, an output end of the servo valve 16 is respectively connected with two ends of the first lever 17, two ends of the second lever 18 are respectively connected with the first proportional valve 19 and the second proportional valve 20, and the first proportional valve 19 and the second proportional valve 20 are connected with an oil inlet pipeline of the servo valve 16. The servo system 6 is adopted, the variable is realized by pushing the positive and negative proportional valves, the response speed is high, the work is stable, the anti-interference capability is strong, and the energy conservation and the high efficiency are realized.

The front wheel hydraulic motor 3 comprises a variable lever II 22, a proportional valve III 23, a safety valve 24 and a flushing valve 25, wherein the flushing valve 25 and the variable lever II 22 are connected in parallel at two ends of the variable lever I7, the variable lever II 22 is connected with the proportional valve III 23, one end of the proportional valve III 23 is connected with the oil tank 5, the other end of the proportional valve III is connected with the control system 2, and the flushing valve 25 is sequentially connected with the safety valve 24 and the oil tank 5.

The rear wheel hydraulic motor 4 and the front wheel hydraulic motor 3 are identical in structure and are symmetrically arranged.

A drag valve 26 is also connected between the two ends of the variable lever 7, thereby realizing the self-circulation of the loop,

the control system 2 and the servo system 6 are both connected with the pressure compensation 21.

The utility model adopts a closed hydrostatic drive system with one pump and two motors, the pump is connected with the engine, the hydraulic motor is connected with the steering drive axle, hydraulic oil is applied to the axle again through the pump to the motor, thus realizing the functions of forward and backward steering of the vehicle, and the like.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A hydrostatic drive multifunctional snow remover is characterized in that: including closed variable plunger pump (1), closed variable plunger pump (1) output is connected with control system (2), control system (2) both ends parallelly connected have front wheel hydraulic motor (3) and rear wheel hydraulic motor (4), oil tank (5) are all connected to front wheel hydraulic motor (3) and rear wheel hydraulic motor (4), control system (2) are connected with servo (6).

2. The hydrostatic drive multi-function snow plow of claim 1, wherein: the control system (2) comprises a variable lever I (7), a high-pressure overflow valve II (8), a high-pressure overflow valve II (9), an oil supplementing valve I (10) and an oil supplementing valve II (11), wherein the two ends of the variable lever I (7) are connected with a front wheel hydraulic motor (3) and a rear wheel hydraulic motor (4) in parallel, the high-pressure overflow valve I (8) and the high-pressure overflow valve II (9) are connected with each other, the oil supplementing valve I (10) and the oil supplementing valve II (11) are connected with each other, and are connected with the two ends of the variable lever I (7) in parallel, a pipeline between the high-pressure overflow valve I (8) and the high-pressure overflow valve II (9) is connected with a pipeline between the oil supplementing valve I (10) and the oil supplementing valve II (11), and is connected with an oil supplementing overflow valve I (12), a filter (14) and an oil supplementing valve II (13), the other end of the oil supplementing overflow valve II (13) is connected with the oil tank (5), the other end of the overflow valve I (12) is connected with the oil pump (15), and the other end of the oil pump (15) is connected with the oil pump (15).

3. The hydrostatic drive multi-function snow plow of claim 2, wherein: the servo system (6) comprises a servo valve (16), a first lever (17), a second lever (18), a first proportional valve (19) and a second proportional valve (20), wherein the first variable lever (7) is respectively connected with the first lever (17) and the second lever (16), the servo valve (16) is connected with the second lever (18), an oil inlet of the servo valve (16) is connected with a pipeline between the first high-pressure overflow valve (8) and the second high-pressure overflow valve (9), an oil return port of the servo valve (16) is connected with the oil tank (5), output ends of the servo valve (16) are respectively connected with two ends of the first lever (17), two ends of the second lever (18) are respectively connected with the first proportional valve (19) and the second proportional valve (20), and the first proportional valve (19) and the second proportional valve (20) are connected with an oil inlet of the servo valve (16) through pipelines.

4. The hydrostatic drive multi-function snow plow of claim 2, wherein: the front wheel hydraulic motor (3) comprises a variable lever II (22), a proportional valve III (23), a safety valve (24) and a flushing valve (25), wherein the flushing valve (25) and the variable lever II (22) are connected in parallel at two ends of the variable lever I (7), the variable lever II (22) is connected with the proportional valve III (23), one end of the proportional valve III (23) is connected with the oil tank (5), the other end of the proportional valve III is connected with the control system (2), and the flushing valve (25) is sequentially connected with the safety valve (24) and the oil tank (5).

5. The hydrostatic drive multi-function snow plow of claim 1, wherein: the rear wheel hydraulic motor (4) and the front wheel hydraulic motor (3) are identical in structure and are symmetrically arranged.

6. The hydrostatic drive multi-function snow plow of claim 2, wherein: and a dragging valve (26) is also connected between the two ends of the first variable lever (7).

7. The hydrostatic drive multi-function snow plow of claim 1, wherein: the control system (2) and the servo system (6) are connected with the pressure compensation (21).