CN-224227702-U - Suction vehicle

CN224227702UCN 224227702 UCN224227702 UCN 224227702UCN-224227702-U

Abstract

The utility model discloses a suction vehicle, which is characterized in that a first clutch in a broken shaft power takeoff keeps a second power take-off port and a first power take-off port to be connected in a normal running state, and meanwhile, the second clutch disconnects a third power take-off port and the first power take-off port. At this time, the power of the engine is transmitted to the rear axle via the first power take-off, the transmission, and the off-axis power take-off, and the vehicle travels in a conventional manner. If the vehicle is required to move at a low speed in the sucking process, a signal can be sent to the PLC through the remote controller. The PLC controller activates the first electromagnetic valve, so that the first clutch disconnects the second force taking port from the first force taking port, and meanwhile, the second clutch engages the third force taking port with the first force taking port. At this time, the engine drives the variable pump through the third power take-off, and hydraulic oil that the variable pump produced flows through the hydraulic unit and drives the hydraulic motor and rotate, and then drives the rear axle through the second power take-off and travel at a low speed.

Inventors

CHEN HUANG
XIAO HUIJIN
XIE RONGJUN
XU GUANGYUAN
CHEN ZHONG

Assignees

福建侨龙应急装备股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250102

Claims (10)

1. The suction vehicle is characterized by comprising a suction mechanism, a chassis with power and traveling functions, a control system and a hydraulic traveling system; The suction mechanism comprises a suction fan; The chassis is provided with an engine, a first power take-off, a gearbox and a broken shaft power take-off, the engine is respectively in transmission connection with the first power take-off and the gearbox, the first power take-off is in transmission connection with the suction fan, the broken shaft power take-off is provided with a first power take-off, a second power take-off, a third power take-off, a fourth power take-off, a first clutch, a second clutch and a first electromagnetic valve, the fourth power take-off is in transmission connection with the second power take-off, the first power take-off is in transmission connection with the gearbox, the second power take-off is in transmission connection with a rear axle of the chassis, the first clutch is used for enabling the second power take-off to be in connection with the first power take-off, or enabling the second power take-off to be in connection with the first power take-off, the second clutch is used for enabling the third power take-off to be in connection with the first power take-off, the first clutch is used for enabling the first clutch to be in connection with the first clutch and the first power take-off, and the first clutch to be in transmission connection with the first clutch respectively; The hydraulic traveling system comprises a variable pump, a hydraulic motor and a hydraulic unit, wherein the variable pump is in transmission connection with the third power take-off port, the hydraulic motor is in transmission connection with the fourth power take-off port, the variable pump drives the hydraulic motor to act through the hydraulic unit, and the hydraulic unit comprises a second electromagnetic valve electrically connected with the variable pump; The control system comprises a PLC controller and a remote controller, wherein the PLC controller is electrically connected with the first electromagnetic valve and the second electromagnetic valve, and is used for controlling the first clutch and the second clutch to be on and off through the first electromagnetic valve and controlling the displacement of the variable pump through the second electromagnetic valve, and the remote controller comprises a receiver and a transmitter, wherein the receiver is electrically connected with the PLC controller, and the transmitter is in communication connection with the receiver.
2. The suction vehicle according to claim 1, wherein two hydraulic motors are provided, two fourth force taking ports are provided, one hydraulic motor corresponds to one fourth force taking port, the hydraulic motor is arranged on a shell of the broken shaft force taking device, and the two fourth force taking ports are symmetrically arranged on the shell and are sequentially arranged along the length direction of the chassis.
3. The suction vehicle according to claim 1, wherein the variable pump is a closed type pump, and the two oil ports of the variable pump are connected with the two oil ports of the hydraulic motor through a first oil pipe and a second oil pipe of the hydraulic unit; The hydraulic traveling system further comprises an oil supplementing pump and an oil supplementing overflow valve, wherein an oil outlet of the oil supplementing pump is connected with oil inlets of two second electromagnetic valves through a third oil pipe of the hydraulic unit, two second electromagnetic valves are respectively provided with an electric proportional pressure valve, oil outlets of the two second electromagnetic valves are connected with a rod cavity and a rodless cavity of a variable displacement servo oil cylinder of the variable displacement pump through a fourth oil pipe and a fifth oil pipe of the hydraulic unit, an electromagnet of the second electromagnetic valve is electrically connected with the PLC, an oil inlet of the oil supplementing overflow valve is connected with the third oil pipe, and an oil return port of the oil supplementing overflow valve is connected with an oil tank; The hydraulic unit further comprises two pressure shut-off valves and/or two high-pressure overflow valves, wherein the oil inlet of the first pressure shut-off valve is connected with the first oil pipe, the oil outlet of the first pressure shut-off valve is connected with the fourth oil pipe, the oil inlet of the second pressure shut-off valve is connected with the second oil pipe, the oil outlet of the second pressure shut-off valve is connected with the fifth oil pipe, the oil inlet of the first high-pressure overflow valve is connected with the first oil pipe, the oil outlet of the first high-pressure overflow valve is connected with the oil tank, the oil inlet of the first high-pressure overflow valve is connected with the second oil pipe, and the oil outlet of the first high-pressure overflow valve is connected with the oil tank.
4. A suction vehicle according to claim 3, characterized in that the hydraulic unit further comprises a filter provided on the third oil pipe between the second solenoid valve and the oil make-up pump.
5. The suction vehicle according to claim 1, wherein the first clutch and the second clutch are pneumatic clutches, the first electromagnetic valve is a two-position five-way electromagnetic valve and is connected to a gas path matched with the pneumatic clutches, the working ports A of the first electromagnetic valve are respectively connected with the rodless cavity of the cylinder of the first clutch and the rod-containing cavity of the cylinder of the second clutch, and the working ports B of the first electromagnetic valve are respectively communicated with the rod-containing cavity of the cylinder of the first clutch and the rod-free cavity of the cylinder of the second clutch.
6. The aspiration vehicle of claim 5, wherein the first solenoid valve is energized, a rod cavity of a cylinder of the first clutch, a rodless cavity of a cylinder of the second clutch, a cylinder of the second clutch extending to engage the third force take-off port and the first force take-off port, a cylinder of the first clutch disconnecting the second force take-off port and the first force take-off port, power of the engine being input through the first force take-off port, the variable pump being driven through the third force take-off port, the variable pump driving the hydraulic motor, the hydraulic motor transmitting power to the rear axle through the fourth force take-off port and the second force take-off port, such that the aspiration vehicle travels; the first electromagnetic valve is not electrified, a rodless cavity of the cylinder of the first clutch and a rod cavity of the cylinder of the second clutch are used for air intake, the cylinder of the second clutch is disconnected from the third force taking port and the first force taking port, the cylinder of the first clutch extends out to be connected with the second force taking port and the first force taking port, and power of the engine is input through the first force taking port and is transmitted to the rear axle through the second force taking port, so that the suction vehicle can drive.
7. The suction vehicle according to claim 6, wherein when the electromagnet of the second electromagnetic valve has a given current of 178-440 ma, the displacement of the variable pump is 0-75 ml/r, and the vehicle speed of the suction vehicle is 0-5.2 km/h.
8. The aspiration vehicle of claim 1, wherein the control system further comprises a switch, wherein the switch is electrically connected to the PLC controller, wherein the PLC controller receives a signal from the switch and controls the first solenoid valve to disengage the first clutch of the off-axis power take-off from the second power take-off and the first power take-off.
9. The suction vehicle according to claim 1, wherein a knob for adjusting the rotation speed of the engine is provided on the transmitter, and the PLC controller is electrically connected to a throttle of the engine.
10. The aspiration vehicle of claim 1, further comprising a second power take-off in driving connection with the gearbox and an auxiliary action hydraulic system in driving connection with the second power take-off.

Description

Suction vehicle Technical Field The utility model relates to the technical field of suction vehicles, in particular to a suction vehicle. Background The suction vehicle is a special purpose vehicle, and is widely applied to the fields of municipal administration, industry, agriculture and the like, and is used for performing tasks such as sewage cleaning, pipeline dredging, dust or particulate matter collection and the like. Such vehicles are typically equipped with a powerful suction fan that is driven by the vehicle's engine through a power take-off to ensure adequate power support when performing suction operations. Meanwhile, the walking power of the suction vehicle also depends on an engine, and the engine is transmitted to a rear axle through a power takeoff to drive the vehicle to advance or retreat. To ensure performance and efficiency of the suction fan, it is necessary to maintain a constant engine speed during the suction operation. However, in practice, operators often face conditions that require the vehicle to travel at low speeds while drawing. In this case, the conventional speed regulation method of regulating the vehicle speed by means of a throttle conflicts with the requirement of the suction operation for stabilizing the engine speed. Disclosure of utility model Therefore, it is necessary to provide a suction vehicle to solve the problem that the conventional speed regulation method for regulating the vehicle speed through the throttle conflicts with the requirement of the suction operation on the stable engine speed. In order to achieve the above object, the present embodiment provides a suction vehicle, including a suction mechanism, a chassis having power and traveling functions, a control system, and a hydraulic traveling system; The suction mechanism comprises a suction fan; The chassis is provided with an engine, a first power take-off, a gearbox and a broken shaft power take-off, the engine is respectively in transmission connection with the first power take-off and the gearbox, the first power take-off is in transmission connection with the suction fan, the broken shaft power take-off is provided with a first power take-off, a second power take-off, a third power take-off, a fourth power take-off, a first clutch, a second clutch and a first electromagnetic valve, the fourth power take-off is in transmission connection with the second power take-off, the first power take-off is in transmission connection with the gearbox, the second power take-off is in transmission connection with a rear axle of the chassis, the first clutch is used for enabling the second power take-off to be in connection with the first power take-off, or enabling the second power take-off to be in connection with the first power take-off, the second clutch is used for enabling the third power take-off to be in connection with the first power take-off, the first clutch is used for enabling the first clutch to be in connection with the first clutch and the first power take-off, and the first clutch to be in transmission connection with the first clutch respectively; The hydraulic traveling system comprises a variable pump, a hydraulic motor and a hydraulic unit, wherein the variable pump is in transmission connection with the third power take-off port, the hydraulic motor is in transmission connection with the fourth power take-off port, the variable pump drives the hydraulic motor to act through the hydraulic unit, and the hydraulic unit comprises a second electromagnetic valve electrically connected with the variable pump; The control system comprises a PLC controller and a remote controller, wherein the PLC controller is electrically connected with the first electromagnetic valve and the second electromagnetic valve, and is used for controlling the first clutch and the second clutch to be on and off through the first electromagnetic valve and controlling the displacement of the variable pump through the second electromagnetic valve, and the remote controller comprises a receiver and a transmitter, wherein the receiver is electrically connected with the PLC controller, and the transmitter is in communication connection with the receiver. Further, the hydraulic motors are two, the number of the fourth force taking openings is two, one hydraulic motor corresponds to one fourth force taking opening, the hydraulic motors are arranged on the shell of the broken shaft force taking device, and the two fourth force taking openings are symmetrically arranged on the shell and are sequentially arranged along the length direction of the chassis. Further, the variable pump is closed type and proportional type, and two oil ports of the variable pump are connected with two oil ports of the hydraulic motor through a first oil pipe and a second oil pipe of the hydraulic unit; The hydraulic traveling system further comprises an oil supplementing pump and an oil supplementing overflow valve, wherein an oil outlet of the oil sup