Remote integrated control device for power takeoff and clutch

Abstract

The invention relates to the technical field of automobile machinery and electrics, in particular to a power takeoff and clutch remote integrated control device which comprises a power takeoff and a clutch, the power takeoff is connected with a power takeoff electromagnetic valve through an air pipe, and the power takeoff electromagnetic valve is linearly connected with an electromagnetic pressure pump. A delay closing relay, a power takeoff switch and a delay opening relay are sequentially arranged between the power takeoff electromagnetic valve and the electromagnetic pressure pump, so that the power takeoff electromagnetic valve and a power takeoff switch are controlled, the electromagnetic pressure pump is connected with a two-position three-way electromagnetic valve through a second oil pipe, and the two-position three-way electromagnetic valve is connected with a clutch slave cylinder through a third oil pipe. The two-position three-way electromagnetic valve controls the clutch slave cylinder and the electromagnetic pressure pump; power takeoff starting control and clutch remote control are integrated, when the power takeoff is controlled to be started under the vehicle, an operator does not need to step on the clutch in a cab, disconnection and engagement of the clutch are remotely controlled, cooperation of the operator in the cab and operation under the vehicle is reduced, and the remote operation safety of the vehicle is improved.

Description

Technical Field

[0001] This invention relates to the field of automotive mechanics and electrical technology, and specifically to a remote integrated control device for a power take-off and clutch. Background Technology

[0002] Work-type vehicles generally consist of two parts: a chassis and a superstructure. The superstructure is mainly powered by a power take-off (PTO) from the chassis. The power transmission route is: engine - transmission - PTO - drive shaft - superstructure drive unit. To ensure smooth power transmission, the clutch must be engaged when the PTO is engaged, so that the PTO and transmission can be smoothly connected.

[0003] Operational vehicles are generally parked for operation, with no one in the cab. Personnel need to be stationed in the cab to assist in operation, making the operation of the entire vehicle cumbersome and wasting human resources.

[0004] Furthermore, communication between the driver and the operator on the ground is difficult, and improper coordination can cause damage to the power take-off (PTO) engagement teeth, potentially leading to accidents. Therefore, a device for remotely controlling the clutch and PTO from the ground is needed to save resources and ensure safe operation. Summary of the Invention

[0005] In view of the problems existing in the prior art, the purpose of this invention is to provide a remote integrated control device for a power take-off and a clutch.

[0006] The technical solution adopted by the present invention to solve its technical problem is: a remote integrated control device for a power take-off (PTO) and a clutch, comprising a PTO and a clutch. The PTO is connected to a PTO solenoid valve via an air pipe. The PTO solenoid valve is linearly connected to an electromagnetic pressure pump. A time-delayed shut-off relay, a PTO switch, and a time-delayed open relay are sequentially provided between the PTO solenoid valve and the electromagnetic pressure pump, thereby controlling the switching of the PTO solenoid valve and the PTO. The electromagnetic pressure pump is connected to a two-position three-way solenoid valve via an oil pipe two. The two-position three-way solenoid valve is connected to the clutch slave pump via an oil pipe three. The two-position three-way solenoid valve controls the clutch slave pump and the electromagnetic pressure pump.

[0007] Preferably, after the power take-off switch is turned on, it is switched to be controlled by an electromagnetic pressure pump via a two-position three-way solenoid valve, thereby controlling the clutch to disengage. The power take-off solenoid valve is opened via a time-delayed opening relay, and the power take-off control air circuit is connected, thereby realizing the power take-off engagement. The electromagnetic pressure pump is turned off via a time-delayed closing relay, the clutch is engaged, and power output is realized, driving the upper structure operation through the power take-off.

[0008] Preferably, the two-position three-way solenoid valve is connected to the clutch master pump via an oil pipe, and the clutch master pump is connected to the clutch pedal. The clutch pushes the clutch master pump, and the hydraulic system pushes the clutch slave pump, thereby realizing the disengagement and engagement of the clutch.

[0009] Preferably, the power take-off solenoid valve is connected to the air storage tank via an air pipe.

[0010] Preferably, the electromagnetic pressure pump is connected to the liquid storage tank.

[0011] Preferably, the clutch slave cylinder is equipped with a clutch fork.

[0012] The present invention has the following advantages: the power take-off (PTO) activation control and clutch remote control are integrated, and a one-button control scheme is adopted. When the PTO is activated by control from below the vehicle, there is no need for the operator to press the clutch in the cab. The clutch can be remotely controlled to disengage and engage, reducing the need for coordination between the operator in the cab and the operator below the vehicle, and improving the safety of remote vehicle operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention.

[0014] In the diagram: 1-Clutch; 2-Clutch shift fork; 3-Clutch slave cylinder; 4-Power take-off (PTO); 5-Air pipe; 6-PTO solenoid valve; 7-Air reservoir; 8-Delayed opening relay; 9-PTO switch; 10-Delayed closing relay; 11-Reservoir; 12-Electromagnetic pressure pump; 13-Clutch pedal; 14-Clutch master cylinder; 15-Oil pipe one; 16-Two-position three-way solenoid valve; 17-Oil pipe two; 18-Oil pipe three. Detailed Implementation

[0015] The technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0016] Work-type vehicles are generally parked for operation, with work performed from below the vehicle. The power source for the superstructure is mainly driven by the chassis power take-off (PTO). The power transmission route is: engine - transmission - PTO - drive shaft - superstructure drive unit. To ensure smooth power transmission, the clutch must be engaged when the PTO is engaged, allowing the PTO and transmission to engage smoothly. After the PTO is engaged, the clutch engages automatically.

[0017] This invention solves the problem of controlling the opening and closing of the power take-off (PTO) 4 under the vehicle in work-type vehicles, eliminating the need for operators to depress the clutch in the cab. It enables remote control of clutch engagement and disengagement, integrating the PTO 4 opening control and clutch remote control into a one-button control scheme, reducing operational steps.

[0018] like Figure 1As shown, a remote integrated control device for a power take-off (PTO) and clutch includes a clutch 1, a clutch shift fork 2, a clutch master pump 14, a clutch slave pump 3, a PTO solenoid valve 6, a two-position three-way solenoid valve 16, a time-delayed opening relay 8, a time-delayed closing relay 10, a PTO switch 9, an electromagnetic pressure pump 12, oil pipes, and air pipes 5. The PTO 4 is connected to the PTO solenoid valve 6 via the air pipe 5. The PTO solenoid valve 6 is linearly connected to the electromagnetic pressure pump 12. A time-delayed closing relay 10, a PTO switch 9, and a time-delayed opening relay 8 are sequentially installed between the PTO solenoid valve 6 and the electromagnetic pressure pump 12 to control the opening and closing of the PTO solenoid valve 6 and the PTO 4. The electromagnetic pressure pump 12 is connected to the two-position three-way solenoid valve 16 via oil pipe 2 17. The two-position three-way solenoid valve 16 is connected to the clutch slave pump 3 via oil pipe 3 18. The two-position three-way solenoid valve 16 controls the clutch slave pump 3 and the electromagnetic pressure pump 12.

[0019] The power take-off solenoid valve 6 is connected to the air storage tank 7 through the air pipe 5, the electromagnetic pressure pump 12 is connected to the liquid storage tank 11, and the clutch slave pump 3 is equipped with a clutch shift fork 2.

[0020] The two-position three-way solenoid valve 16 can switch between the clutch main pump 14, the electromagnetic pressure pump 12, and the clutch slave pump 3. After the power take-off (PTO) 4 switch is turned on, it switches to the electromagnetic pressure pump 12 and the clutch slave pump 3, and the clutch 1 is disengaged. The PTO solenoid valve 6 is opened through the delayed-open relay 8, and the PTO 4 is connected through the air circuit and engaged. At this time, the delayed-close relay 10 closes the electromagnetic pressure pump 12, realizing the engagement of the clutch 1, thereby enabling the PTO 4 to output power smoothly and operate safely.

[0021] The PTO 4 activation control and clutch remote integrated control are provided. The PTO switch 9 simultaneously controls the disengagement / engagement of the clutch 1 and the opening / closing of the PTO 4 air circuit.

[0022] The two-position three-way solenoid valve 16 can realize the switching control between the vehicle clutch master pump 14 and the solenoid pressure pump 12 and the clutch slave pump 3.

[0023] The delay-on relay 8 and the delay-off relay 10 can be set to extend the time according to the disengagement / engagement of clutch 1 and the engagement of power take-off 4.

[0024] The clutch slave cylinder 3 is controlled in two modes. In the first mode, the clutch master pump 14 is pushed by the clutch pedal 13, and the hydraulic system pushes the clutch slave cylinder 3, thereby realizing the disengagement and engagement of the clutch 1. In the second mode, the high-pressure hydraulic oil is pumped by the electromagnetic pressure pump 12 to push the clutch slave cylinder 3, thereby realizing the disengagement and engagement of the clutch 1.

[0025] The power take-off (PTO) 4 is controlled by a remote integrated control system for opening and closing the clutch. After the PTO switch 9 is opened, it is switched to be controlled by the electromagnetic pressure pump 12 via the two-position three-way solenoid valve 16, thereby controlling the disengagement of the clutch 1. The PTO solenoid valve 6 is opened via the delayed opening relay 8, and the air circuit of the PTO 4 is connected, thereby enabling the PTO 4 to engage. The electromagnetic pressure pump 12 is closed via the delayed closing relay 10, and the clutch 1 engages, realizing power output and driving the upper structure operation via the PTO 4.

[0026] This invention enables remote control of the power take-off unit 4 and clutch 1 from under the vehicle, achieving smooth engagement of the power system and smooth power output, reducing the workload of operators, and improving the safety of vehicle operation.

[0027] This invention is not limited to the above-described embodiments. Anyone should know that any structural changes made under the guidance of this invention, and any technical solutions that are the same as or similar to this invention, fall within the protection scope of this invention.

[0028] The technologies, shapes, and structures not described in detail in this invention are all known technologies.

Claims

1. A remote integrated control device for a power take-off and clutch, characterized in that, The device includes a power take-off (PTO) and a clutch. The PTO is connected to a PTO solenoid valve via an air pipe. The PTO solenoid valve is linearly connected to an electromagnetic pressure pump. A time-delayed shut-off relay, a PTO switch, and a time-delayed open relay are sequentially installed between the PTO solenoid valve and the electromagnetic pressure pump to control the PTO solenoid valve and the PTO switch. The electromagnetic pressure pump is connected to a two-position three-way solenoid valve via an oil pipe. The two-position three-way solenoid valve is connected to a clutch slave pump via an oil pipe. The two-position three-way solenoid valve controls the clutch slave pump and the electromagnetic pressure pump.

2. The remote integrated control device for power take-off and clutch according to claim 1, characterized in that, After the power take-off switch is turned on, it switches to electromagnetic pressure pump control via a two-position three-way solenoid valve, thereby controlling the clutch to disengage. The power take-off solenoid valve is opened via a time-delayed opening relay, and the power take-off control air circuit is connected, thereby realizing power take-off engagement. The electromagnetic pressure pump is turned off via a time-delayed closing relay, the clutch is engaged, and power output is realized, driving the upper structure operation via the power take-off.

3. The remote integrated control device for power take-off and clutch according to claim 1, characterized in that, The two-position three-way solenoid valve is connected to the clutch master pump via an oil pipe. The clutch master pump is connected to the clutch pedal. The clutch pushes the clutch master pump, and the hydraulic system pushes the clutch slave pump, thereby realizing the disengagement and engagement of the clutch.

4. The remote integrated control device for power take-off and clutch according to claim 1, characterized in that, The power take-off solenoid valve is connected to the air storage tank via an air pipe.

5. The remote integrated control device for power take-off and clutch according to claim 1, characterized in that, The electromagnetic pressure pump is connected to the storage tank.

6. The remote integrated control device for power take-off and clutch according to claim 1, characterized in that, The clutch slave cylinder is equipped with a clutch fork.

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