Efficient hydraulic driving mechanism of cleaning vehicle

Abstract

The utility model belongs to the technical field of hydraulic driving, and particularly relates to an efficient hydraulic driving mechanism of a cleaning vehicle, which comprises an oil tank, an oil delivery pump arranged in the oil tank, a central block assembled and connected to the oil delivery pump, a motor assembled and connected to the upper side of the central block and in transmission connection with the oil delivery pump, and an overlapping block assembled and connected to one side of the central block. Oil outlet passages and oil return passages which are connected with an oil delivery pump are arranged in the center block and the superposition block, two groups of oil outlet passages are arranged in the center block and the superposition block, electromagnetic valve groups for controlling the on-off of the oil outlet passages and the oil return passages are arranged on the two sides of the superposition block, and two oil outlets are formed in the two sides of the superposition block; the power unit can realize simultaneous work of two paths, so that the cleaning efficiency is improved, and the requirements of different cleaning scenes are met. Each hydraulic loop is provided with two electromagnetic valves, one electromagnetic valve is used for controlling flowing of hydraulic oil, the other electromagnetic valve is used for facilitating pressure relief, and operation safety and flexibility can be guaranteed.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic drive technology, specifically relating to a high-efficiency hydraulic drive mechanism for a cleaning vehicle. Background Technology

[0002] The hydraulic drive principle mainly involves converting mechanical energy into pressure energy through a hydraulic pump in the hydraulic system, and then transmitting energy through changes in fluid pressure. A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy, performing linear reciprocating or oscillating motion. It has a simple structure and reliable operation. When using a hydraulic cylinder to achieve reciprocating motion, a speed reduction device is unnecessary, there is no transmission backlash, and the movement is smooth. Therefore, it is widely used in various hydraulic systems.

[0003] However, in existing technologies, when cleaning a car, a single drive unit typically controls the operation of a single channel, which is inefficient. Utility Model Content

[0004] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a high-efficiency hydraulic drive mechanism for a cleaning vehicle to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned technical objectives, the technical solution adopted by this utility model is as follows:

[0006] A high-efficiency hydraulic drive mechanism for a cleaning vehicle includes an oil tank, an oil pump housed within the tank, a central block connected to the oil pump, a motor connected to the upper side of the central block and driven by the oil pump, a stacking block connected to one side of the central block, an oil outlet passage and a return passage connected to the oil pump within the central block and the stacking block, two sets of oil outlet passages within the central block and the stacking block, and solenoid valve groups on both sides of the stacking block for controlling the opening and closing of the oil outlet and return passages, with two oil outlets on both sides of the stacking block, and the return passage of the stacking block communicating with the oil outlets, the two sets of solenoid valve groups for individually controlling the oil outlet and return of the two oil outlets, and two one-way valves connected to both the central block and the stacking block, the four one-way valves for controlling the unidirectional flow of hydraulic oil.

[0007] Furthermore, the motor is equipped with a starter.

[0008] Furthermore, an air hood is fitted and connected to the outside of the fuel tank.

[0009] Furthermore, a pressure compensation valve connected to the oil return passage is provided on the lower side of the stacked block.

[0010] Further specified, the two sets of solenoid valve groups are located on the upper side and the left side of the stack block, respectively, and there are two solenoid valve groups. The two solenoid valve groups are used to control the oil outlet and oil return of a single oil hole.

[0011] Furthermore, the one-way valve assembled and connected to the stacked block is located on the right side of the stacked block.

[0012] Further specifying, an overflow valve is assembled and connected to one side of the center block on which the one-way valve is assembled and connected.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] This power unit can operate two circuits simultaneously, improving cleaning efficiency and adapting to the needs of different cleaning scenarios. Each hydraulic circuit is equipped with two solenoid valves: one to control the flow of hydraulic oil and the other for convenient pressure relief, ensuring operational safety and flexibility.

[0015] This utility model is ingeniously designed, achieving independent control of two hydraulic oil circuits through a single oil pump, reducing the use of the oil tank and improving the efficiency of both the oil tank and the oil pump. Attached Figure Description

[0016] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0017] Figure 1 This is a schematic diagram of the structure of a high-efficiency hydraulic drive mechanism for a cleaning vehicle according to the present invention;

[0018] Figure 2 This is a side view of a high-efficiency hydraulic drive mechanism for a cleaning vehicle according to the present invention.

[0019] Figure 3 This is a side view of the connection between the inside of the fuel tank and the central block of this utility model;

[0020] Figure 4 This is a side view of the interior of the fuel tank of this utility model;

[0021] Figure 5 This is a view of the stacking block of this utility model;

[0022] The symbols for the main components are explained below:

[0023] 1. Oil tank; 2. Oil pump; 3. Center block; 4. Motor; 5. Stacking block; 6. Solenoid valve assembly; 7. Check valve; 8. Starter; 9. Air cover; 10. Pressure compensation valve; 11. Overflow valve. Detailed Implementation

[0024] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] Unless otherwise defined, the technical or scientific terms used in this disclosure shall have the ordinary meaning understood by one of ordinary skill in the art to which this disclosure pertains; the terms “first,” “second,” and similar terms used in this disclosure do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as “comprising” or “including” mean that an element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as “connected” or “linked” are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0026] like Figure 1-5 As shown, a high-efficiency hydraulic drive mechanism for a cleaning vehicle includes an oil tank 1, an oil pump 2 installed inside the oil tank 1, a central block 3 connected to the oil pump 2, a motor 4 connected to the upper side of the central block 3 and driven by the oil pump 2, a stacking block 5 connected to one side of the central block 3, an oil outlet passage and a return passage connected to the oil pump 2 installed in the central block 3 and the stacking block 5, two sets of oil outlet passages in the central block 3 and the stacking block 5, and solenoid valve groups 6 on both sides of the stacking block 5 for controlling the opening and closing of the oil outlet and return passages, two oil outlets on both sides of the stacking block 5, and the return passage of the stacking block 5 is connected to the oil outlets, the two sets of solenoid valve groups 6 are used to individually control the oil outlet and return of the two oil outlets, and two one-way valves 7 are installed on both the central block 3 and the stacking block 5, the four one-way valves 7 are used to control the one-way flow of hydraulic oil respectively.

[0027] In this embodiment, the oil tank 1 contains hydraulic oil. The output and return of the hydraulic oil are controlled by the oil pump 2. The motor 4 drives the oil pump 2. The hydraulic oil transmitted to the stacking block 5 by the oil pump 2 is divided into two paths. The hydraulic oil passing through the central block 3 reaches the oil outlet of the stacking block 5. There are two sets of solenoid valves 6. One is used to control the flow of hydraulic oil to the oil outlet, and the other is used to release pressure, so that the hydraulic oil returns to the oil tank 1 from the oil outlet through the return path, ensuring the safety and flexibility of operation. The two sets of solenoid valves 6 control the oil output or return of the two oil outlets separately, so as to realize the simultaneous operation of the two paths, improve the cleaning efficiency, and adapt to the needs of different cleaning scenarios. The central block 3 is equipped with two check valves 7. The two check valves 7 connected to the central block 3 are used to make the hydraulic oil output in one direction. The stacking block 5 is equipped with two check valves 7. The two check valves 7 connected to the stacking block 5 are used to make the hydraulic oil return in one direction.

[0028] Reference Figure 1 The motor 4 is equipped with a starter 8. In this embodiment, the starter 8 is used to start the motor 4, thereby driving the oil pump 2 to work. Preferably, the oil pump 2 is a gear pump, which pumps the hydraulic oil 1 out of the oil tank and back in.

[0029] Reference Figure 1 An air cover 9 is mounted and connected to the outside of the fuel tank 1. In this embodiment, the air cover 9 is also the fuel tank air filter. The air cover 9 balances the pressure of the fuel tank 1 and prevents external impurities from entering the fuel tank 1.

[0030] Reference Figure 3 A pressure compensation valve 10 connected to the return oil passage is provided on the lower side of the stacked block 5. In this embodiment, the pressure compensation valve 10 is mainly used to maintain the pressure stability of the system, and to maintain a constant working pressure even under load changes; it senses the pressure changes in the system and adjusts the valve opening accordingly to control the inflow or outflow. Specifically, when the system pressure increases, the pressure compensation valve will automatically reduce the opening to limit more flow into the system, and conversely, it will increase the opening to allow more flow through the system.

[0031] Reference Figure 4 Two sets of solenoid valve groups 6 are located on the upper and left sides of the stacked block 5, respectively. There are two sets of solenoid valve groups 6, which are used to control the oil outlet and return of a single oil hole. In this embodiment, one set of solenoid valve groups 6 is used to control the operation of one cleaning unit.

[0032] Reference Figure 3 The one-way valve 7, which is assembled and connected to the stacking block 5, is located on the right side of the stacking block 5. In this embodiment, the position of the one-way valve 7 is further defined.

[0033] Reference Figure 4 A relief valve 11 is assembled and connected to one side of the center block 3, which is connected to the one-way valve 7. In this embodiment, the relief valve is a hydraulic pressure control valve, which mainly plays the roles of constant pressure relief, pressure stabilization, system unloading, and safety protection in hydraulic equipment.

[0034] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0035] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A high-efficiency hydraulic drive mechanism for a cleaning vehicle, comprising an oil tank (1), characterized in that: The oil tank (1) is equipped with an oil pump (2), which is connected to a central block (3). A motor (4) connected to the oil pump (2) is mounted on the upper side of the central block (3). A stacking block (5) is mounted on one side of the central block (3). An oil outlet passage and an oil return passage connected to the oil pump (2) are provided in the central block (3) and the stacking block (5). The oil outlet passage in the central block (3) and the stacking block (5) is provided with two sets. The stack block (5) is provided with solenoid valve groups (6) on both sides to control the opening and closing of the oil outlet and return channels. The stack block (5) is provided with two oil outlets on both sides. The return channel of the stack block (5) is connected to the oil outlet. The two sets of solenoid valve groups (6) are used to control the oil outlet and return of the two oil outlets separately. The center block (3) and the stack block (5) are each equipped with two check valves (7). The four check valves (7) are used to control the unidirectional flow of hydraulic oil.

2. The high-efficiency hydraulic drive mechanism for a cleaning vehicle according to claim 1, characterized in that: The motor (4) is equipped with a starter (8).

3. The high-efficiency hydraulic drive mechanism for a cleaning vehicle according to claim 1, characterized in that: An air hood (9) is fitted and connected to the outside of the oil tank (1).

4. The high-efficiency hydraulic drive mechanism for a cleaning vehicle according to claim 3, characterized in that: A pressure compensation valve (10) connected to the oil return passage is provided on the lower side of the stack block (5).

5. The high-efficiency hydraulic drive mechanism for a cleaning vehicle according to claim 3, characterized in that: The two sets of solenoid valve groups (6) are located on the upper side and the left side of the stack block (5), respectively. There are two solenoid valve groups (6), and the two solenoid valve groups (6) are used to control the oil outlet and oil return of a single oil hole.

6. The high-efficiency hydraulic drive mechanism for a cleaning vehicle according to claim 3, characterized in that: The one-way valve (7) connected to the stack block (5) is located on the right side of the stack block (5).

7. The high-efficiency hydraulic drive mechanism for a cleaning vehicle according to claim 3, characterized in that: An overflow valve (11) is assembled and connected to one side of the center block (3) which is equipped with a check valve (7).

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