Smashing suction cup motor sweeper hydraulic system

Abstract

The utility model relates to a hydraulic system of a crushing sucker sweeper. The hydraulic system comprises a hydraulic oil tank and a motor, the duplex gear pump is connected to the hydraulic oil tank and connected with the output end of the motor, and the downstream of the duplex gear pump is connected with a first main oil pipe and a second main oil pipe; a front sweeping unit, a rear sweeping unit, a rear door unit and a car hopper unit are connected to the first control valve set in parallel, the first control valve set is connected with a first main oil pipe, the tail end of the first main oil pipe is inserted into all the units, first branch oil return ways are arranged on all the units, and the first branch oil return ways sequentially penetrate through the first control valve set and then are all connected to the oil return pipe in parallel; the second control valve group is connected with two cutterhead motors connected in series, the second control valve group is connected with a second main oil pipe, the tail end of the second control valve group is inserted into the cutterhead motors, and the cutterhead motors are connected with a second branch oil return path which penetrates through the second control valve group and then is connected with the oil return pipe. By designing the independent control valve group, each working unit of the sweeper can be simultaneously or independently controlled, and the sweeping efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of garbage trucks, and in particular relates to a hydraulic system for a crushing suction cup sweeper. Background Art

[0002] With the multifunctional development of washing and sweeping vehicles, when washing and sweeping vehicles are cleaning, whole leaves on the road are sucked into the trash can through the suction nozzle. Some leaves that are too large cannot be completely sucked in, which requires the leaves to be crushed.

[0003] However, the existing hydraulic system of the sweeper equipped with a crushing suction cup causes the following defects during the operation of the sweeper: 1. The hydraulic system has a complex structure, which is prone to misoperation and has poor safety; 2. The pressure of the hydraulic oil circuit system is unstable, resulting in the hydraulic cylinder of each control unit unable to move normally, the movement is unstable, and at the same time increases the energy consumption of the entire system; technical personnel in this field urgently need to solve the above technical problems. Utility Model Content

[0004] In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a hydraulic system for a crushing suction cup sweeper, which can simultaneously or independently control the various working units of the sweeper by designing an independent control valve group, thereby improving the cleaning efficiency.

[0005] The utility model adopts the following technical solutions:

[0006] A hydraulic system for a crushing suction cup sweeper, comprising a hydraulic oil tank and a motor;

[0007] a double gear pump connected to the hydraulic oil tank and connected to the output end of the motor, wherein the downstream of the double gear pump is connected to a first main oil pipe and a second main oil pipe;

[0008] A first control valve group, to which a front sweep unit, a rear sweep unit, a rear door unit, and a vehicle bed unit are connected in parallel, the first control valve group being connected to a first main oil pipe, the ends of which are inserted into the units, and each unit being provided with a first branch oil return line, which passes through the first control valve group in sequence and is then all connected in parallel to the oil return line;

[0009] The second control valve group is connected to two cutter disc motors connected in series. The second control valve group is connected to the second main oil pipe. The end of the second main oil pipe is inserted into the cutter disc motor. The cutter disc motor is connected to a second branch oil return line. The second branch oil return line passes through the second control valve group and is connected to the return oil pipe.

[0010] In a preferred embodiment of the present invention, the double gear pump includes a first pump and a second pump;

[0011] The first pump has a first pump oil inlet and a first pump oil outlet;

[0012] The second pump has a second pump oil inlet and a second pump oil outlet, and the first pump oil inlet and the second pump oil inlet are connected to the hydraulic oil tank;

[0013] The first pump oil outlet is connected to the first main oil pipe, and the displacement of the first pump oil outlet is 10ml / r;

[0014] The second pump oil outlet is connected to the second oil outlet pipe, and the displacement of the second pump oil outlet is 20 ml / r.

[0015] In a preferred embodiment of the present invention, two groups of the forward sweeping units are provided, both of which are connected in parallel with the first control valve group and are configured as forward sweeping cylinders.

[0016] In a preferred embodiment of the present invention, the back-sweeping unit includes a suction nozzle cylinder and two back-sweeping cylinders, the suction nozzle cylinder and the two back-sweeping cylinders are connected in parallel, and the two back-sweeping cylinders are connected in parallel.

[0017] In a preferred embodiment of the present invention, the rear door unit includes a rear door cylinder.

[0018] In a preferred embodiment of the present invention, the truck bed unit includes a manual oil pump and two parallel lifting cylinders, the upstream oil pipe of the manual oil pump is connected in parallel to the branch oil inlet line of the lifting cylinder, and the downstream oil pipe is connected in parallel to the return oil pipe.

[0019] In a preferred embodiment of the present invention, the first control valve group includes a solenoid reversing valve, a two-way hydraulic lock and a back pressure valve;

[0020] The front sweep unit, the rear sweep unit and the rear door unit are all connected in sequence to a two-way hydraulic lock and an electromagnetic reversing valve, and the bucket unit is connected to a back pressure valve.

[0021] In a preferred embodiment of the present invention, the utility model further comprises a sweeping brush motor unit connected to the first control valve group, wherein four sweeping brush motors are arranged in the sweeping brush motor unit and adopt a differential connection.

[0022] In a preferred embodiment of the present invention, the first control valve group further includes an electromagnetic unloading valve.

[0023] Beneficial effects:

[0024] The utility model discloses a hydraulic system for a crushing suction cup sweeper. The first control valve group is responsible for controlling the flow of hydraulic oil in the front sweeping unit, the rear sweeping unit, the rear door unit, the vehicle bucket unit, the sweeping brush motor unit and the electromagnetic unloading valve. The hydraulic oil is supplied by the first main oil pipe to perform the cleaning action of each unit, the opening of the rear door and the control of the vehicle bucket. After each unit completes its work, the hydraulic oil returns through the first branch oil return line, passes through the first control valve group in sequence, and is finally connected in parallel to the oil return pipe. Each unit can operate independently.

[0025] The second control valve group controls the cutter head motor, which is responsible for the crushing function. The second main oil circuit provides hydraulic oil. After the work is completed, the hydraulic oil returns through the second branch return oil circuit, passes through the second control valve group, and finally returns to the return oil pipe.

[0026] The utility model can simultaneously or independently control the various working units of the sweeper by designing an independent control valve group, thereby improving the cleaning efficiency. The design of the double gear pump can reduce energy consumption and improve the working efficiency of the hydraulic system. The design of the control valve group can ensure the stable flow of hydraulic oil, reduce system pressure fluctuations, and improve operational safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural diagram of a hydraulic system for a crushing suction cup sweeper provided by the utility model;

[0028] Figure 2 A schematic diagram of the partial structure of the hydraulic system of a crushing suction cup sweeper provided by the utility model Figure 1 ;

[0029] Figure 3 A schematic diagram of the partial structure of the hydraulic system of a crushing suction cup sweeper provided by the utility model Figure 2 ;

[0030] Figure 4 A schematic diagram of the partial structure of the hydraulic system of a crushing suction cup sweeper provided by the utility model Figure 3 .

[0031] In the figure: 1 hydraulic oil tank;

[0032] 2 motors;

[0033] 3. Double gear pump;

[0034] 4. First main oil pipe;

[0035] 5. Second main oil pipe;

[0036] 6. First control valve group;

[0037] 7 forward scanning unit;

[0038] 8 rear sweep units;

[0039] 9 rear door units;

[0040] 10 truck bed units;

[0041] 11 oil return pipe;

[0042] 12 second control valve group;

[0043] 13. Cutter motor;

[0044] 14 motor units. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0046] like Figure 1-4 As shown, a hydraulic system of a crushing suction cup sweeper includes a hydraulic oil tank 1 and a motor 2;

[0047] A double gear pump 3 is connected to the hydraulic oil tank 1 and is connected to the output end of the motor 2. The downstream of the double gear pump 3 is connected to a first main oil pipe 4 and a second main oil pipe 5;

[0048] A first control valve group 6 is connected in parallel to a front sweep unit 7, a rear sweep unit 8, a rear door unit 9, and a truck bed unit 10. The first control valve group 6 is connected to the first main oil pipe 4. The ends of the first main oil pipe 4 are inserted into the above-mentioned units. Each of the above-mentioned units is provided with a first branch oil return line. The first branch oil return lines sequentially pass through the first control valve group 6 and are all connected in parallel to the oil return pipe 11.

[0049] A second control valve group 12 is connected to two cutterhead motors 13 connected in series. The second control valve group 12 is connected to the second main oil pipe 5. The end of the second main oil pipe 5 is inserted into the cutterhead motor 13. The cutterhead motor 13 is connected to a second branch oil return line. The second branch oil return line passes through the second control valve group 12 and is connected to the oil return pipe 11.

[0050] The working principle and beneficial effects of the above embodiment are as follows:

[0051] The power of the hydraulic system of the utility model comes from the motor 2, which drives the double gear pump 3 to provide hydraulic oil for the system. The double gear pump 3 distributes the hydraulic oil to two main oil pipes: the first main oil pipe 4 and the second main oil pipe 5;

[0052] The first control valve group 6 is responsible for controlling the flow of hydraulic oil in the front sweeping unit 7, rear sweeping unit 8, rear door unit 9, and truck bed unit 10. The hydraulic oil is supplied by the first main oil pipe 4 to each unit to perform the sweeping action, rear door opening, and truck bed control of each unit. After each unit completes its work, the hydraulic oil returns through the first branch oil return line, passes through the first control valve group 6 in sequence, and is finally connected in parallel to the return oil pipe 11, so that each unit can operate independently.

[0053] The second control valve group 12 controls the cutter head motor 13, which is responsible for the crushing function and is supplied with hydraulic oil by the second main oil circuit 5. After the work is completed, the hydraulic oil returns through the second branch oil return circuit, passes through the second control valve group 12, and finally returns to the oil return pipe 11;

[0054] The utility model can control each working unit of the sweeper simultaneously or independently through an independent control valve group, thereby improving the cleaning efficiency. The design of the double gear pump can reduce energy consumption and improve the working efficiency of the hydraulic system. The design of the control valve group can ensure the stable flow of hydraulic oil, reduce system pressure fluctuations, and improve operational safety.

[0055] In one embodiment,

[0056] The double gear pump 3 includes a first pump and a second pump;

[0057] The first pump has a first pump oil inlet and a first pump oil outlet;

[0058] The second pump has a second pump oil inlet and a second pump oil outlet, and the first pump oil inlet and the second pump oil inlet are connected to the hydraulic oil tank 1;

[0059] The first pump outlet is connected to the first main oil pipe 4. The displacement of the first pump outlet is 10 ml / r, supplying the front sweep unit 7, the rear sweep unit 8, the rear door unit 9 and the bucket unit 10.

[0060] The second pump outlet is connected to the second oil outlet pipe 5. The displacement of the second pump outlet is 20ml / r, supplying the cutter motor 13;

[0061] By rationally allocating and precisely controlling the hydraulic oil displacement, the working efficiency and reliability of the sweeper are improved, while also reducing its maintenance costs and energy consumption.

[0062] In one embodiment,

[0063] Two groups of forward sweeping units 7 are provided, both of which are connected in parallel with the above-mentioned first control valve group 6, which are set as forward sweeping cylinders; the operator can control the actions of the two groups of forward sweeping cylinders, such as extension and contraction, by controlling the first control valve group 6 to achieve cleaning actions. The two groups of forward sweeping cylinders can work simultaneously or separately to adapt to different cleaning needs and environments.

[0064] In one embodiment,

[0065] The rear sweep unit 8 includes a nozzle oil cylinder and two rear sweep oil cylinders. The nozzle oil cylinder and the two rear sweep oil cylinders are connected in parallel, and the two rear sweep oil cylinders are also connected in parallel.

[0066] The two rear sweep cylinders are arranged directly above the suction nozzle cylinder, and the suction nozzle cylinder is arranged in the middle position of the two rear sweep cylinders. The hydraulic oil is distributed to the rear sweep unit 8 through the first control valve group 6, thereby controlling the action of the suction nozzle cylinder and the two rear sweep cylinders. By operating the suction nozzle cylinder and the rear sweep cylinder at the same time, garbage can be collected and cleaned more effectively, thereby improving the cleaning efficiency.

[0067] In one embodiment,

[0068] The rear door unit 9 includes a rear door oil cylinder; it is responsible for controlling the opening and closing of the rear door so as to dump the garbage collected by the sweeper.

[0069] In one embodiment,

[0070] The truck bed unit 10 includes a manual oil pump and two lifting cylinders connected in parallel. The upstream oil pipe of the manual oil pump is connected in parallel to the branch oil inlet line of the lifting cylinder, and the downstream oil pipe is connected in parallel to the return oil pipe 11.

[0071] The manual oil pump can be operated independently of the main hydraulic system and can be used as an emergency measure to ensure basic operation of the truck body.

[0072] In one embodiment,

[0073] The first control valve group 6 includes a solenoid reversing valve, a two-way hydraulic lock and a back pressure valve.

[0074] The front sweep unit 7, rear sweep unit 8, and rear door unit 9 are all connected in sequence to a two-way hydraulic lock and an electromagnetic reversing valve, and the bucket unit 10 is connected to a back pressure valve;

[0075] The electromagnetic reversing valve is used to control the flow direction of the hydraulic oil to achieve the extension and contraction of the cylinder; the two-way hydraulic lock is used to keep the cylinder in a certain position to prevent the oil pressure from dropping and causing the cylinder to automatically retract; the back pressure valve is connected to the truck bed unit 10 to maintain a certain back pressure to ensure the stable operation of the hydraulic system and prevent the cylinder from descending too quickly; so that each working unit of the sweeper can be precisely controlled while maintaining stable and safe operation.

[0076] In one embodiment,

[0077] The cleaning system further comprises a sweeping motor unit 14 connected to the first control valve group 6 . Four sweeping motors are arranged in the sweeping motor unit 14 and a differential connection is adopted, so that the four sweeping motors can operate at different speeds and directions, thereby improving cleaning efficiency.

[0078] In one embodiment,

[0079] The first control valve group 6 also includes an electromagnetic unloading valve, whose main function is to realize unloading and loading of the system by controlling the pressure of the hydraulic system, thereby protecting the system and extending the life of the equipment.

[0080] In summary:

[0081] The utility model discloses a hydraulic system for a crushing suction cup sweeper. The first control valve group is responsible for controlling the flow of hydraulic oil in the front sweeping unit, the rear sweeping unit, the rear door unit, the vehicle bucket unit, the sweeping brush motor unit and the electromagnetic unloading valve. The hydraulic oil is supplied by the first main oil pipe to perform the cleaning action of each unit, the opening of the rear door and the control of the vehicle bucket. After each unit completes its work, the hydraulic oil returns through the first branch oil return line, passes through the first control valve group in sequence, and is finally connected in parallel to the oil return pipe. Each unit can operate independently.

[0082] The second control valve group controls the cutter head motor, which is responsible for the crushing function. The second main oil circuit provides hydraulic oil. After the work is completed, the hydraulic oil returns through the second branch return oil circuit, passes through the second control valve group, and finally returns to the return oil pipe.

[0083] The utility model can control each working unit of the sweeper simultaneously or independently through an independent control valve group, thereby improving the cleaning efficiency. The design of the double gear pump can reduce energy consumption and improve the working efficiency of the hydraulic system. The design of the control valve group can ensure the stable flow of hydraulic oil, reduce system pressure fluctuations, and improve operational safety.

[0084] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the above embodiments are merely illustrative of the technical concepts and features of the present invention, and are intended to enable those familiar with the art to understand and implement the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications based on the spirit and substance of the present invention are intended to fall within the scope of protection of the present invention.

Claims

1. A hydraulic system for a crushing suction cup sweeper, characterized by: It comprises a hydraulic oil tank (1) and a motor (2); a double gear pump (3) connected to the hydraulic oil tank (1) and connected to the output end of the motor (2); a first main oil pipe (4) and a second main oil pipe (5) are connected downstream of the double gear pump (3); A first control valve group (6) is connected in parallel to a front sweep unit (7), a rear sweep unit (8), a rear door unit (9) and a vehicle bed unit (10); the first control valve group (6) is connected to a first main oil pipe (4); the end of the first main oil pipe (4) is inserted into each of the units; each of the units is provided with a first branch oil return line; the first branch oil return lines sequentially pass through the first control valve group (6) and are all connected in parallel to the oil return pipe (11); A second control valve group (12) is connected to two cutterhead motors (13) connected in series. The second control valve group (12) is connected to a second main oil pipe (5). The end of the second main oil pipe (5) is inserted into the cutterhead motor (13). The cutterhead motor (13) is connected to a second branch oil return line. The second branch oil return line passes through the second control valve group (12) and is connected to the oil return pipe (11).

2. The hydraulic system for a crushing suction cup sweeper according to claim 1, characterized in that: The double gear pump (3) comprises a first pump and a second pump; The first pump has a first pump oil inlet and a first pump oil outlet; The second pump has a second pump oil inlet and a second pump oil outlet, and the first pump oil inlet and the second pump oil inlet are connected to the hydraulic oil tank (1); The first pump oil outlet is connected to the first main oil pipe (4), and the displacement of the first pump oil outlet is 10 ml / r; The second pump oil outlet is connected to the second main oil pipe (5), and the displacement of the second pump oil outlet is 20 ml / r.

3. The hydraulic system for a crushing suction cup sweeper according to claim 1, characterized in that: The forward sweeping units (7) are provided in two groups, both of which are connected in parallel with the first control valve group (6), and are provided as forward sweeping oil cylinders.

4. The hydraulic system for a crushing suction cup sweeper according to claim 1, characterized in that: The rear sweep unit (8) comprises a suction nozzle oil cylinder and two rear sweep oil cylinders, the suction nozzle oil cylinder and the two rear sweep oil cylinders are connected in parallel, and the two rear sweep oil cylinders are connected in parallel.

5. The hydraulic system for a crushing suction cup sweeper according to claim 1, characterized in that: The rear door unit (9) comprises a rear door oil cylinder.

6. The hydraulic system for a crushing suction cup sweeper according to claim 1, characterized in that: The truck bucket unit (10) comprises a manual oil pump and two parallel lifting cylinders. The upstream oil pipe of the manual oil pump is connected in parallel to the branch oil inlet line of the lifting cylinder, and the downstream oil pipe is connected in parallel to the return oil pipe (11).

7. The hydraulic system for a crushing suction cup sweeper according to claim 1, characterized in that: The first control valve group (6) includes an electromagnetic reversing valve, a two-way hydraulic lock and a back pressure valve; The front sweep unit (7), the rear sweep unit (8), and the rear door unit (9) are all connected in sequence to a two-way hydraulic lock and an electromagnetic reversing valve, and the bucket unit (10) is connected to a back pressure valve.

8. The hydraulic system for a crushing suction cup sweeper according to claim 1, characterized in that: The invention also comprises a sweeping brush motor unit (14) connected to the first control valve group (6), wherein four sweeping brush motors are arranged in the sweeping brush motor unit (14) and adopt a differential connection.

9. The hydraulic system for a crushing suction cup sweeper according to claim 1, characterized in that: The first control valve group (6) also includes an electromagnetic unloading valve.

Images