One-control-two parallel control system for closed sweeper of skid loader

Abstract

The utility model discloses a one-control-two parallel control system for a closed sweeper of a skid loader, belongs to the technical field of skid loader control, and solves the problems that a hydraulic pipeline is complicated and the cost is high due to the fact that a turnover cover of an existing material box is controlled through an accessory loop. The device comprises a hydraulic oil cylinder and an auxiliary hydraulic loop, a driving motor is arranged on the auxiliary hydraulic loop, the output end of the driving motor is connected with a rolling brush piece of the sweeper, and the device further comprises a hydraulic lock. An oil port A and an oil port B of a first oil way corresponding to the hydraulic lock are connected with a small cavity of the hydraulic oil cylinder and the auxiliary hydraulic loop on one side of the driving motor respectively to form a first control oil way, and an oil port A and an oil port B of a second oil way corresponding to the hydraulic lock are connected with a large cavity of the hydraulic oil cylinder and the auxiliary hydraulic loop on the other side of the driving motor respectively to form a second control oil way. According to the parallel control system, the number of parts can be effectively reduced, and the manufacturing and maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of skid loader control, and more specifically, to a one-control-two parallel control system of closed sweepers of a skid loader. Background Art

[0002] As an auxiliary actuator, the sweeper can be installed in a skid steer loader. At present, the lid flipping operation of the closed sweeper material box carried by the skid steer loader mostly adopts the control method of switching the auxiliary oil circuit by the electromagnetic reversing valve to drive the hydraulic cylinder. This control scheme involves multiple components such as the electromagnetic reversing valve, related wiring harness, and operating case. Not only does it have a large number of parts, the performance is unreliable, and the cost is relatively high.

[0003] Therefore, it is urgent to design a new type of one-control-two parallel control system of the closed sweeper of the skid loader to solve the above-mentioned technical problems. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide a one-control-two parallel control system for closed sweepers of a skid loader in view of the above-mentioned deficiencies in the prior art, which can effectively reduce the number of parts and components, reduce manufacturing and maintenance costs, and has the characteristics of simple structure and compact space.

[0005] The technical solution of the utility model is as follows: a one-control-two parallel control system of a closed sweeper of a skid loader, comprising a hydraulic cylinder and an auxiliary hydraulic circuit, wherein the hydraulic cylinder is installed between a material box and a material box flap of the sweeper, and the two ends of the hydraulic cylinder are respectively hingedly connected to the material box and the material box flap, a driving motor is provided on the auxiliary hydraulic circuit, the output end of the driving motor is connected to a roller brush of the sweeper, and a hydraulic lock is also included, wherein the AB oil ports of the first oil circuit corresponding to the hydraulic lock are respectively connected to the small cavity of the hydraulic cylinder and the auxiliary hydraulic circuit on one side of the driving motor to form a first control oil circuit, and the AB oil ports of the second oil circuit corresponding to the hydraulic lock are respectively connected to the large cavity of the hydraulic cylinder and the auxiliary hydraulic circuit on the other side of the driving motor to form a second control oil circuit.

[0006] As a further improvement, the hydraulic lock is installed on the top of the material box.

[0007] Furthermore, the hydraulic lock is detachably connected to the material box.

[0008] Furthermore, the first oil circuit, the second oil circuit and the auxiliary hydraulic circuit corresponding to the hydraulic lock are connected via a three-way joint.

[0009] Furthermore, the three-way joint is installed on the top of the material box.

[0010] Furthermore, the three-way joint is detachably connected to the material box.

[0011] Beneficial Effects

[0012] Compared with the prior art, the utility model has the following advantages:

[0013] The parallel control system of the utility model eliminates structural parts such as electromagnetic reversing valves, operating buttons and associated wiring harnesses, and utilizes hydraulic locks to achieve hydraulic oil communication between the hydraulic cylinders corresponding to the material box, which can effectively reduce the number of parts and components, reduce manufacturing and maintenance costs, and has the characteristics of simple structure, compact space and higher operating efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the control principle diagram of the utility model;

[0015] Figure 2 It is the layout structure diagram of the closed sweeper in the utility model.

[0016] Among them: 1-hydraulic cylinder, 2-auxiliary hydraulic circuit, 3-material box, 4-material box cover, 5-driving motor, 6-rolling brush, 7-hydraulic lock, 8-first control oil circuit, 9-second control oil circuit, 10-three-way connector. DETAILED DESCRIPTION

[0017] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0018] See also Figure 1-2 The utility model discloses a one-control-two parallel control system of a closed sweeper of a skid loader, comprising a hydraulic cylinder 1 and an auxiliary hydraulic circuit 2, wherein the hydraulic cylinder 1 is installed between a material box 3 and a material box flap 4 of the sweeper, and the two ends of the hydraulic cylinder 1 are respectively hingedly connected to the material box 3 and the material box flap 4, for driving the material box flap 4 to open or close, and a driving motor 5 is provided on the auxiliary hydraulic circuit 2, and the output end of the driving motor 5 is connected to a roller brush piece 6 of the sweeper, for driving the roller brush piece 6 to rotate to achieve cleaning. The control system also includes a hydraulic lock 7, which is a product in the prior art. It has a first oil circuit and a second oil circuit, and both the first oil circuit and the second oil circuit have AB oil ports. The specific structure is not repeated here. The AB oil ports of the first oil circuit corresponding to the hydraulic lock 7 are respectively connected to the small chamber of the hydraulic cylinder 1 and the auxiliary hydraulic circuit 2 on one side of the drive motor 5 to form a first control oil circuit 8, and the AB oil ports of the second oil circuit corresponding to the hydraulic lock 7 are respectively connected to the large chamber of the hydraulic cylinder 1 and the auxiliary hydraulic circuit 2 on the other side of the drive motor 5 to form a second control oil circuit 9.

[0019] In this embodiment, hydraulic oil is led out from one end of the auxiliary hydraulic circuit 2 and connected to the small cavity of the hydraulic cylinder 1 through the interface corresponding to the hydraulic lock 7 to form a first control oil circuit 8, while hydraulic oil is also led out from the other end of the auxiliary hydraulic circuit 2 and connected to the large cavity of the hydraulic cylinder 1 through the interface corresponding to the hydraulic lock 7 to form a second control oil circuit 9, so that the two actuators of the sweeper, the driving motor 5 and the hydraulic cylinder 1, form a parallel control circuit. Taking the state in which the sweeper roller brush piece 6 of the sweeper rotates forward when the first control oil circuit 8 is in oil supply, and the sweeper roller brush piece 6 of the sweeper rotates reversely when the second control oil circuit 9 is in oil supply as an example, when the sweeper roller brush piece 6 rotates forward, the small chamber of the hydraulic cylinder 1 retracts the piston rod under the action of the oil pressure, and drives the material box flap 4 to close, and in the cleaning process, the pressure-closed state is always maintained; when the material box 3 is full of material and needs to be dumped, the sweeper roller brush piece 6 reverses, and the hydraulic cylinder 1 extends the piston rod to drive the material box flap 4 to open, and the material can be dumped, that is, the forward and reverse rotation of the sweeper roller brush piece 6 can complete the opening and closing of the material box flap 4, realizing that one oil circuit of the auxiliary hydraulic circuit 2 controls two actuators to work simultaneously, that is, the concept of one controlling two, and the control is more convenient.

[0020] The parallel control system of the utility model eliminates structural parts such as the electromagnetic reversing valve, operating buttons and associated wiring harnesses, and utilizes the hydraulic lock 7 to achieve hydraulic oil communication between the hydraulic cylinders corresponding to the material box, which can effectively reduce the number of parts and components, reduce manufacturing and maintenance costs, and has the characteristics of simple structure, compact space and higher operating efficiency.

[0021] Preferably, the hydraulic lock 7 is installed on the top of the material box 3, so that there is enough space around the hydraulic lock 7 for easy disassembly and assembly. Further, the hydraulic lock 7 and the material box 3 are detachably connected. Specifically, the hydraulic lock 7 and the material box 3 can be fixed by bolts or plugged in. The detachable installation method makes disassembly and assembly more convenient.

[0022] Preferably, the first oil circuit and the second oil circuit corresponding to the hydraulic lock 7 are connected to the auxiliary hydraulic circuit 2 through a three-way joint 10 to achieve the connection of the hydraulic pipeline. Further, the three-way joint 10 is installed on the top of the material box 3, so that there is enough space around the three-way joint 10 for convenient disassembly and assembly. Furthermore, the three-way joint 10 and the material box 3 are detachably connected. Specifically, the three-way joint 10 and the material box 3 can be fixed by bolts or plugged in. The detachable installation method makes disassembly and assembly more convenient.

[0023] The above is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A parallel control system for a closed type sweeper of a skid loader, comprising a hydraulic cylinder (1) and an auxiliary hydraulic circuit (2), wherein the hydraulic cylinder (1) is installed between a material box (3) and a material box flap (4) of the sweeper, and the two ends of the hydraulic cylinder (1) are respectively hingedly connected to the material box (3) and the material box flap (4), and the auxiliary hydraulic circuit (2) is provided with a drive motor (5), and the output end of the drive motor (5) is connected to a roller brush sheet (6) of the sweeper, characterized in that: It also includes a hydraulic lock (7), wherein the AB oil ports of the first oil circuit corresponding to the hydraulic lock (7) are respectively connected to the small chamber of the hydraulic cylinder (1) and the auxiliary hydraulic circuit (2) on one side of the drive motor (5) to form a first control oil circuit (8), and the AB oil ports of the second oil circuit corresponding to the hydraulic lock (7) are respectively connected to the large chamber of the hydraulic cylinder (1) and the auxiliary hydraulic circuit (2) on the other side of the drive motor (5) to form a second control oil circuit (9).

2. A parallel control system for one-controlling-two closed-type sweepers of a skid loader according to claim 1, characterized in that: The hydraulic lock (7) is installed on the top of the material box (3).

3. The one-control-two parallel control system of the closed sweeper of a skid loader according to claim 2, characterized in that: The hydraulic lock (7) is detachably connected to the material box (3).

4. The one-control-two parallel control system of the closed sweeper of a skid loader according to claim 1, characterized in that: The first oil circuit and the second oil circuit corresponding to the hydraulic lock (7) are connected to the auxiliary hydraulic circuit (2) via a three-way connector (10).

5. A parallel control system for one-controlling-two closed-type sweepers of a skid loader according to claim 4, characterized in that: The three-way joint (10) is installed on the top of the material box (3).

6. A parallel control system for one-controlling-two closed-type sweepers of a skid loader according to claim 5, characterized in that: The three-way connector (10) is detachably connected to the material box (3).

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