CN218760665U

CN218760665U - Hydraulic oil circuit structure for grinding machine

Info

Publication number: CN218760665U
Application number: CN202220677833.1U
Authority: CN
Inventors: 张东阳; 张力; 郑丽
Original assignee: Haikun Transmission System Wuxi Co ltd
Current assignee: Haikun Transmission System Wuxi Co ltd
Priority date: 2022-03-25
Filing date: 2022-03-25
Publication date: 2023-03-28
Anticipated expiration: 2032-03-25

Abstract

The utility model discloses a hydraulic oil circuit structure for a winching machine; the hydraulic pump comprises a hydraulic oil tank and an integrated pump motor, wherein the hydraulic oil tank comprises an oil tank oil outlet and an oil tank oil return opening, the integrated pump motor comprises an oil inlet port, an oil outlet port, a regulating and controlling part, an input rotating shaft and an output rotating shaft, an oil inlet pipe is connected between the oil tank oil outlet and the oil inlet port, an oil outlet pipe is connected between the oil tank oil return opening and the oil outlet port, and the regulating and controlling part is connected with a controller for regulating and controlling the output rotating shaft to rotate forwards, reversely and stop rotating; the input rotating shaft is used for connecting a power input device, and the output rotating shaft is used for connecting a power output device. The utility model discloses in, hydraulic pressure oil circuit's simple structure, the pipeline is less, connects less, practices thrift the cost. The number of connecting points is small, oil leakage is not easy to occur, and the safety is high.

Description

Hydraulic oil circuit structure for grinding machine

Technical Field

The utility model relates to a hank grinds quick-witted technical field, especially relates to a hydraulic pressure oil circuit structure for hank grinds machine.

Background

The motor and the pump of the existing winching machine are usually in split structures, and more pipelines and joints are needed to connect the motor and the pump during connection, so that the cost of a hydraulic oil circuit is higher. And when the pipeline and the joint are more, the number of the connection points in the hydraulic oil circuit is more, the oil leakage phenomenon easily occurs at the connection points, and the safety is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the main technical problem who solves provides a hydraulic pressure oil circuit structure for hank mill, and it is more to solve pipeline, joint and tie point, and makes the higher and relatively poor problem of security of hydraulic pressure oil circuit cost.

In order to solve the technical problem, a technical scheme adopted by the utility model is to provide a hydraulic oil circuit structure for a winching machine, which comprises a hydraulic oil tank and an integrated pump motor, wherein the hydraulic oil tank comprises an oil tank oil outlet and an oil tank oil return port, the integrated pump motor comprises an oil inlet port, an oil outlet port, a regulating and controlling part, an input rotating shaft and an output rotating shaft, an oil inlet pipe is connected between the oil tank oil outlet and the oil inlet port, an oil outlet pipe is connected between the oil tank oil return port and the oil outlet port, and the regulating and controlling part is connected with a controller for regulating and controlling the forward rotation, the reverse rotation and the stalling of the output rotating shaft; the input rotating shaft is used for connecting a power input device, and the output rotating shaft is used for connecting a power output device.

Preferably, the hydraulic oil tank is further provided with an oil tank oil drainage port, the integrated pump motor is further provided with a control port, the control port is connected with a shuttle valve, the shuttle valve is connected with a sequence valve, one port of the sequence valve is connected with a brake pipe, the brake pipe is connected with a brake in the power output device, the other port of the sequence valve is connected with a first oil drainage pipe, and the first oil drainage pipe is connected with the oil tank oil drainage port.

Preferably, the regulation port includes a first regulation sub-port and a second regulation sub-port, and the first regulation sub-port and the second regulation sub-port are used for correspondingly regulating and controlling the forward rotation and the reverse rotation of the integral pump motor; the inlet of the shuttle valve comprises a first sub-inlet and a second sub-inlet, the first regulation sub-port is connected with the first sub-inlet through a hydraulic pipeline, and the second regulation sub-port is connected with the second sub-inlet through another hydraulic pipeline.

Preferably, the shuttle valve is further connected with a solenoid valve, the solenoid valve is connected with a second oil drainage pipe, and the second oil drainage pipe is connected with the oil drainage port of the oil tank.

Preferably, the shuttle valve is connected with a first three-way valve, a first port of the first three-way valve is connected with the shuttle valve, a second port of the first three-way valve is connected with a pressure gauge, a third port of the first three-way valve is connected with a second three-way valve, a first port of the second three-way valve is connected with a third port of the first three-way valve, the second port of the second three-way valve is connected with the electromagnetic valve, and the third port of the second three-way valve is connected with the sequence valve.

Preferably, the pressure gauge is an electric contact pressure gauge, is electrically connected to the electromagnetic valve, and is configured to switch on the electromagnetic valve when monitoring that the pressure in the hydraulic oil path reaches a preset maximum pressure value.

Preferably, the oil outlet pipe comprises a first oil outlet pipe and a second oil outlet pipe, and an air cooler is arranged between the first oil outlet pipe and the second oil outlet pipe.

Preferably, a temperature switch is arranged on the hydraulic oil tank and electrically connected with the air cooler.

Preferably, the hydraulic oil path structure further comprises a filter, and the filter is arranged on the inner side of the oil outlet of the oil tank.

Preferably, an air filter is arranged on the hydraulic oil tank, and the air filter is arranged at the top of the outer side of the hydraulic oil tank.

The beneficial effects of the utility model are that: make integral type pump motor start through power input device, in integral type pump motor starts the hydraulic oil that inhales the integral type pump motor with the hydraulic tank from advancing oil pipe, back in hydraulic oil enters into integral type pump motor, the output pivot of integral type pump motor rotates, drives the input pivot rotation of speed reducer, then the output pivot drive reel of speed reducer rolls. The utility model discloses in, hydraulic pressure oil circuit's simple structure, the pipeline is less, connects less, practices thrift the cost. The number of connecting points is small, oil leakage is not easy to occur, and the safety is high.

Drawings

Fig. 1 is a schematic structural view of an embodiment of a hydraulic oil circuit structure for a winching machine according to the present invention;

fig. 2 is a schematic connection diagram for supplying power to an embodiment of the hydraulic oil circuit structure of the grinder according to the present invention.

Detailed Description

To facilitate understanding of the present invention, the present invention will be described in more detail with reference to the accompanying drawings and specific embodiments. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It is to be noted that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 shows an embodiment of the hydraulic oil path structure for a winching machine of the present invention, which includes a hydraulic oil tank 10 and an integrated pump motor 20, wherein the hydraulic oil tank 10 includes an oil tank outlet 101 and an oil tank return port 102, the integrated pump motor 20 includes an oil inlet port 201, an oil outlet port 202, a control member, an input rotating shaft and an output rotating shaft, an oil inlet pipe 104 is connected between the oil tank outlet 101 and the oil inlet port 201, an oil outlet pipe 105 is connected between the oil tank return port 102 and the oil outlet port 202, and the control member is connected to a controller for controlling the forward rotation, the reverse rotation and the stoppage of the output rotating shaft; the input shaft is used for connecting a power input device, and the output shaft is used for connecting a power output device 30.

The power input device can be a gasoline engine, a diesel engine, a motor and the like. Preferably a gasoline engine. The power output device 30 includes a speed reducer, and an output rotating shaft of the integrated pump motor 20 is connected to an input rotating shaft of the speed reducer. The output rotating shaft of the speed reducer is connected with the winding drum to drive the winding drum to roll. Make integral type pump motor 20 start through power input device, integral type pump motor 20 starts and inhales integral type pump motor 20 with the hydraulic oil in the hydraulic tank 10 from advancing oil pipe 104 in, and hydraulic oil enters into integral type pump motor 20 in the back, and integral type pump motor 20's output pivot rotates, drives the input pivot rotation of speed reducer, then the output pivot drive reel of speed reducer rolls. The utility model discloses in, hydraulic pressure oil circuit's simple structure, the pipeline is less, connects less, practices thrift the cost. The number of connecting points is small, oil leakage is not easy to occur, and the safety is high.

Preferably, the integral pump motor 20 is a hydraulic continuously variable transmission (HST), which integrates a hydraulic pump, a hydraulic motor, a control valve, and an oil filter to form a closed system, and the output shaft is continuously variable rotated by adjusting the displacement of the hydraulic pump. Preferably, the integrated pump motor 20 is manufactured by medium-sized marine hydraulic company, inc: LY-HPVMF-37L 02C.

Preferably, a control on the integral pump motor 20 is used to control the forward, reverse, and stall of the integral pump motor 20. The control member may be an electrically controlled control button or a manual control lever.

Preferably, the hydraulic oil tank 10 further includes an oil tank oil drainage port 103, the integrated pump motor 20 further includes a control port, the control port is connected to the shuttle valve 40, the shuttle valve 40 is connected to the sequence valve 50, a port of the sequence valve 50 is connected to the brake pipe 501, the brake pipe 501 is connected to the brake of the speed reducer, another port of the sequence valve 50 is connected to the first oil drainage pipe 502, and the first oil drainage pipe 502 is connected to the oil tank oil drainage port 103.

The brake is preferably a normally closed hydraulic disc brake. The hydraulic winching machine is provided with a normally closed hydraulic disc brake, and is automatically opened during working and automatically closed during non-working, so that the safety is greatly improved.

When the integrated pump motor 20 rotates forwards or backwards, hydraulic oil enters the shuttle valve 40 from the regulating port of the integrated pump motor 20, enters the sequence valve 50 from the shuttle valve 40, enters the speed reducer from the brake pipe 501 of the sequence valve 50 to open the brake, and the speed reducer runs after the brake is opened. Excess hydraulic oil flows into the tank drain port 103 from the first drain pipe 502 and returns to the hydraulic oil tank 10.

Preferably, the regulation ports include a first regulation sub-port 203 and a second regulation sub-port 204, and the first regulation sub-port 203 and the second regulation sub-port 204 correspond to forward rotation and reverse rotation of the integrated pump motor 20; the inlet of the shuttle valve 40 comprises a first sub-inlet 401 and a second sub-inlet 402, the first regulator sub-port 203 is connected with the first sub-inlet 401 through a hydraulic pipeline, and the second regulator sub-port 204 is connected with the second sub-inlet 402 through another hydraulic pipeline.

When the integrated pump motor 20 rotates forward, the pressure at the first regulator sub-port 203 is higher than the pressure at the second regulator sub-port 204, and is high. Hydraulic oil enters the shuttle valve 40 from the first regulator sub port 203, the hydraulic oil enters the sequence valve 50 from an oil outlet of the shuttle valve 40, and a part of the hydraulic oil enters the speed reducer from the brake pipe 501 connected with the sequence valve 50, so that the brake of the speed reducer unlocks an input rotating shaft of the speed reducer, and the speed reducer starts to operate to drive the winding drum to operate. The excess hydraulic oil flows into the oil tank drain port 103 from the first drain pipe 502 and returns to the hydraulic oil tank 10.

When the integrated pump motor 20 is reversed, the pressure at the second regulator sub-port 204 is higher than the pressure at the first regulator sub-port 203, and is high. Hydraulic oil enters the shuttle valve 40 from the second regulator sub-port 204, the hydraulic oil enters the sequence valve 50 from the oil outlet of the shuttle valve 40, and a part of the hydraulic oil enters the speed reducer from the brake pipe 501 connected with the sequence valve 50, so that the brake of the speed reducer unlocks an input rotating shaft of the speed reducer, and the speed reducer starts to operate to drive the winding drum to operate. The excess hydraulic oil flows into the oil tank drain port 103 from the first drain pipe 502 and returns to the hydraulic oil tank 10.

Therefore, the running and the starting and stopping of the speed reducer can be controlled, the speed reducer can be infinitely variable, the starting and stopping are smooth, the starting and stopping impact and the gear shifting impact are greatly reduced, and the mechanical life of equipment is greatly prolonged.

Preferably, the shuttle valve 40 is further connected with a solenoid valve 60, the solenoid valve 60 is connected with a second oil drain pipe 601, and the second oil drain pipe 601 is connected with the oil tank oil drain port 103.

When the pressure in the hydraulic oil circuit reaches a preset maximum pressure value, the electromagnetic valve 60 is switched on, so that the electromagnetic valve 60 is electrically conducted. The maximum pressure value may be set in combination with the maximum load of the integral pump motor 20, so as to prevent the load from exceeding the maximum load of the integral pump motor 20, thereby protecting the integral pump motor. When the solenoid valve 60 is electrically conducted, the hydraulic oil enters the second oil drain pipe 601 from the shuttle valve 40, flows into the oil tank drain port 103 from the second oil drain pipe 601, and returns to the hydraulic oil tank 10. The pressures at the first and

second sub-control ports

203 and 204 are zero, hydraulic oil does not enter the sequence valve 50, the brake of the speed reducer is not activated, and the speed reducer is not operated, thereby preventing an overload of the integrated pump motor 20 due to an excessive load. Therefore, the hydraulic oil path structure can not cause pipe explosion to cause accidents. The safety is improved.

Preferably, the shuttle valve 40 is connected to a first three-way valve 70, a first port of the first three-way valve 70 is connected to the shuttle valve 40, a second port of the first three-way valve 70 is connected to a pressure gauge 110, a third port of the first three-way valve is connected to a second three-way valve 80, a first port of the second three-way valve 80 is connected to a third port of the first three-way valve 70, a second port of the second three-way valve is connected to the solenoid valve 60, and a third port of the second three-way valve is connected to the sequence valve 50. The arrangement of the first three-way valve 70 and the second three-way valve 80 is advantageous in reducing the number of pipe connections between the solenoid valve 60, the shuttle valve 40, and the pressure gauge 110, saving piping, and reducing cost and complexity.

Preferably, the pressure gauge 110 is an electric contact pressure gauge 110, the electric contact pressure gauge 110 is electrically connected to the electromagnetic valve 60, and when the electric contact pressure gauge 110 monitors that the pressure in the hydraulic oil path reaches a preset maximum pressure value, the electromagnetic valve 60 is powered on, and the electromagnetic valve 60 is powered on. The hydraulic oil enters the second drain pipe 601 from the shuttle valve 40, flows into the tank drain port 103 from the second drain pipe 601, and returns to the hydraulic oil tank 10.

Preferably, the oil outlet pipe 105 includes a first oil outlet pipe 1051 and a second oil outlet pipe 1052, and the air cooler 90 is disposed between the first oil outlet pipe 1051 and the second oil outlet pipe 1052.

One end of the first oil outlet sub-pipe 1051 is connected with the oil outlet port 202 of the integral pump motor, the other end is connected with the oil inlet port of the air cooler 90, one end of the second oil outlet sub-pipe 1052 is connected with the oil outlet port of the air cooler 90, and the other end is connected with the oil tank oil return port 102 of the hydraulic oil tank 10.

The air cooler 90 includes a heat sink, or a combination of a heat sink and a cooling fan. Preferably, the air cooler 90 includes a heat sink and a cooling fan. The hydraulic oil flows in the radiating fins, and the cooling fan is started to radiate the radiating fins.

Preferably, a temperature switch 106 is disposed on the hydraulic oil tank 10, and the temperature switch 106 is electrically connected to the air cooler 90. The hydraulic oil flows through the heat sink to dissipate heat, the cooling fan is connected to the temperature switch 106, and when the temperature in the hydraulic oil tank 10 reaches a predetermined temperature, the cooling fan is started.

The temperature switch 106 is connected with the cooling fan in series, and the two ends of the temperature switch are connected with a power supply DC12V. The temperature switch 106 is used for monitoring the temperature in the hydraulic oil tank 10, when the temperature in the hydraulic oil tank 10 reaches a preset temperature, the cooling fan is started.

The preset temperature is preferably 55 ℃, and when the temperature switch 106 detects that the temperature in the hydraulic oil tank 10 reaches 55 ℃, the temperature switch 106 starts the cooling fan to cool the hydraulic oil flowing back to the hydraulic oil tank 10. The cooling fan can be started only when the temperature is higher than the preset temperature, and the cooling fan is not started all the time, so that the energy consumption in daily use can be reduced, and the cost is saved. While maintaining the hydraulic oil temperature at the optimum operating temperature.

Preferably, as shown in fig. 2, the temperature switch 106 and the air cooler 90 are electrically connected in series to both ends of the power supply 1, and the electro-contact pressure gauge 110 and the solenoid valve 60 are also electrically connected in series to both ends of the power supply 1, and these two circuits are connected in parallel. As mentioned above, for the circuit temperature switch 106 and the air cooler 90, when the circuit temperature switch 106 senses that the temperature is too high, the circuit temperature switch is closed, the power is turned on to supply power to the air cooler 90, the air cooler 90 starts to operate, and when the circuit temperature switch 106 senses that the temperature is lower than the set temperature threshold, the circuit temperature switch is turned off, the power stops supplying power to the air cooler 90, and the air cooler 90 stops operating.

Preferably, the hydraulic oil circuit structure further comprises a filter 107, and the filter 107 is arranged on the inner side of the oil tank outlet 101 and is used for filtering hydraulic oil entering the oil inlet pipe 104 from the hydraulic oil tank 10 to ensure that the hydraulic oil is clean.

Preferably, an air filter 108 is disposed on the hydraulic oil tank 10, and the air filter 108 is disposed at the top of the outside of the hydraulic oil tank 10. The air filter 108 is used for filtering air entering the hydraulic oil tank 10 to ensure that the hydraulic oil is clean.

Therefore, the utility model discloses a hydraulic pressure oil circuit structure for grinder, through the operation of shuttle valve and sequence valve control speed reducer, can infinitely variable, open and stop gently, greatly reduce to open and stop to strike, shift gears and strike, improve equipment mechanical life greatly. The electromagnetic valve can avoid the overload of the integrated pump motor due to the overlarge load. The hydraulic oil temperature can be maintained at the optimal working temperature through the air cooler. The whole structure is simple, the number of pipelines is small, the number of joints is small, and cost is saved. The tie point is few, is difficult for the oil leak, and the security is high.

The above is only the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structure changes made in the specification and the attached drawings or directly or indirectly applied to other related technical fields are included in the same principle as the present invention.

Claims

1. A hydraulic oil circuit structure for a winching machine is characterized by comprising a hydraulic oil tank and an integrated pump motor, wherein the hydraulic oil tank comprises an oil tank oil outlet and an oil tank oil return opening, the integrated pump motor comprises an oil inlet port, an oil outlet port, a regulating and controlling part, an input rotating shaft and an output rotating shaft, an oil inlet pipe is connected between the oil tank oil outlet and the oil inlet port, an oil outlet pipe is connected between the oil tank oil return opening and the oil outlet port, and the regulating and controlling part is connected with a controller for regulating and controlling the forward rotation, the reverse rotation and the stop rotation of the output rotating shaft; the input rotating shaft is used for being connected with a power input device, and the output rotating shaft is used for being connected with a power output device.

2. The hydraulic oil circuit structure for the grinding mill as claimed in claim 1, wherein the hydraulic oil tank further comprises an oil tank oil drain port, the integrated pump motor further comprises a regulation port, the regulation port is connected with a shuttle valve, the shuttle valve is connected with a sequence valve, one port of the sequence valve is connected with a brake pipe, the brake pipe is connected with a brake in the power output device, the other port of the sequence valve is connected with a first oil drain pipe, and the first oil drain pipe is connected with the oil tank oil drain port.

3. The hydraulic oil circuit structure for the winching machine as claimed in claim 2, wherein the regulation ports comprise a first regulation sub-port and a second regulation sub-port, and the first regulation sub-port and the second regulation sub-port are used for correspondingly regulating the forward rotation and the reverse rotation of the integrated pump motor; the inlet of the shuttle valve comprises a first sub-inlet and a second sub-inlet, the first regulation sub-port is connected with the first sub-inlet through a hydraulic pipeline, and the second regulation sub-port is connected with the second sub-inlet through another hydraulic pipeline.

4. The hydraulic oil circuit structure for the winching machine as defined in claim 3, wherein the shuttle valve is further connected with a solenoid valve, the solenoid valve is connected with a second oil drainage pipe, and the second oil drainage pipe is connected with the oil drainage port of the oil tank.

5. The hydraulic oil circuit structure for the grinding mill according to claim 4, wherein the shuttle valve is connected with a first three-way valve, a first port of the first three-way valve is connected with the shuttle valve, a second port of the first three-way valve is connected with a pressure gauge, a third port of the first three-way valve is connected with a second three-way valve, a first port of the second three-way valve is connected with a third port of the first three-way valve, a second port of the second three-way valve is connected with the electromagnetic valve, and a third port of the second three-way valve is connected with the sequence valve.

6. The hydraulic oil circuit structure for the grinding machine as claimed in claim 5, wherein the pressure gauge is an electric contact pressure gauge, is electrically connected with the electromagnetic valve, and is used for conducting the electromagnetic valve when the pressure in the hydraulic oil circuit is monitored to reach a preset maximum pressure value.

7. The hydraulic oil circuit structure for the grinding mill as claimed in claim 1, wherein the oil outlet pipe comprises a first oil outlet pipe and a second oil outlet pipe, and an air cooler is arranged between the first oil outlet pipe and the second oil outlet pipe.

8. The hydraulic oil circuit structure for the grinding machine as claimed in claim 7, wherein a temperature switch is arranged on the hydraulic oil tank, and the temperature switch is electrically connected with the air cooler.

9. The hydraulic oil circuit structure for the grinding mill as claimed in claim 1, further comprising a filter disposed inside the oil outlet of the oil tank.

10. The hydraulic oil circuit structure for the winching machine as recited in claim 1, wherein an air filter is disposed on the hydraulic oil tank, and the air filter is disposed at the top of the outside of the hydraulic oil tank.