CN217002507U

CN217002507U - Water-cooled hydraulic system trucd mixer

Info

Publication number: CN217002507U
Application number: CN202121376529.5U
Authority: CN
Inventors: 姜亦鹏; 裴志军; 王瑞斌; 田伟; 王浩; 李鹏飞
Original assignee: Anhui Xingma Special Purpose Vehicle Co Ltd
Current assignee: Anhui Xingma Special Purpose Vehicle Co Ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2022-07-19
Anticipated expiration: 2031-06-21

Abstract

The utility model discloses a water-cooled hydraulic system mixer truck, which belongs to the field of concrete mixer trucks and comprises a truck chassis, a truck frame, a mixing drum and a pipeline system, wherein the mixing drum is arranged on the truck chassis, the tail end of the mixing drum is arranged on the truck frame, the front end of the mixing drum is provided with a hydraulic system and a water supply system, the water supply system is arranged on the hydraulic system, the tail end of the mixing drum is connected with a feeding and discharging system, and the feeding and discharging system is positioned on one side of the truck frame, which is back to the water supply system; the water supply system comprises a water supply tank, a cooling part is arranged in the water supply tank and is suitable for being surrounded by cooling water, an oil inlet and an oil outlet are respectively arranged at the bottom end of the cooling part, and a water inlet and a water outlet are arranged on the water supply tank; the utility model solves the problems that the existing hydraulic system has poor cooling effect and high cost, and can reduce the working efficiency and even stop the stirring truck when the oil temperature is too high.

Description

Water-cooled hydraulic system trucd mixer

Technical Field

The utility model belongs to the field of concrete mixer trucks, and particularly relates to a water-cooled hydraulic system mixer truck.

Background

The mixer truck consists of a vehicle chassis, a mixing drum, a hydraulic system, a waterway system, a feeding and discharging system, a frame supporting system, a protection device and other devices. The hydraulic system is also a transmission system of the mixer truck, the output rotation torque of the engine provides power for the oil pump, the oil pump generates high-pressure oil to drive the motor to rotate, and the motor provides rotation torque for the speed reducer to further control the forward and reverse rotation of the mixing drum to perform loading and unloading work.

The oil pump changes the intracavity space through the tilting axis or sloping cam plate, and the volume of compression hydraulic oil makes hydraulic oil pressure rise, exports pressure energy for the motor and converts into rotatory mechanical energy, can produce the heat in the energy conversion process, causes the oil temperature to rise, can reduce work efficiency and even stop work when the oil temperature is too high. Therefore, a heat dissipation device needs to be added in the hydraulic pipeline to prevent the temperature of the hydraulic oil from being too high, and the normal operation of the hydraulic system is ensured.

In the prior art, an air-cooled radiator is connected to the front end of an oil pump input oil port and the rear end of a motor output oil port. The air-cooled radiator is formed by an aluminum grid and an aluminum alloy oil tank which are additionally provided with radiating fans, the fans suck air at one side of the grid, the air at the other side of the grid flows into the grid and then is sucked by the fans, heat exchange is generated between the air and high-temperature hydraulic oil in the grid, and oil temperature cooling is completed.

However, the air-cooled radiator has relatively low metal radiating efficiency, air flow flux in unit time is improved depending on the rotating speed of the fan, and the fan is driven by a high-speed motor or a variable-frequency motor, so that the manufacturing cost is increased; when the constant-speed motor is used, the heat dissipation area needs to be increased to improve the heat dissipation capacity, so that the volume of the radiator is increased, and the occupied space and the cost are increased; in addition, a plurality of electronic components such as a built-in temperature sensor are needed to control the fan motor to work, the fan motor is stopped and started frequently or works for a long time, the motor is easily damaged, an electronic system is needed to control, if the sensor or a circuit fails, the radiator fan does not work, and the heat dissipation function fails.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the temperature of hydraulic oil in the hydraulic system is reduced, and the cost is saved.

In order to solve the technical problems, the technical scheme of the utility model is obtained by practice and summary of the utility model, and the utility model discloses a water-cooled hydraulic system mixer truck, which comprises a car chassis, a frame, a mixing drum and a pipeline system, wherein the mixing drum is arranged on the car chassis, the tail end of the mixing drum is arranged on the frame, the hydraulic system and a water supply system are arranged at the front end of the mixing drum, the water supply system is arranged on the hydraulic system, the tail end of the mixing drum is connected with a feeding and discharging system, and the feeding and discharging system is positioned on one side of the frame, which is back to the water supply system;

the water supply system comprises a water supply tank, a cooling piece is installed in the water supply tank and suitable for being surrounded by cooling water, an oil inlet and an oil outlet are formed in the bottom end of the cooling piece respectively, and a water inlet and a water outlet are formed in the water supply tank.

Furthermore, hydraulic system includes oil pump, motor and speed reducer, the input of oil pump is suitable for to be connected and rotatory with engine transmission, the output of oil pump is connected with the input pipeline, the input of input pipeline connection motor, the motor is suitable for the rotation of drive speed reducer and control to turn to, all be connected with back oil pipe way on oil pump and the motor, it is two sets of return oil pipe way is suitable for to communicate the back and connects in oil inlet department, oil-out department is connected with inhales oil pipe way, inhales oil pipe way is suitable for connecting oil-out and oil pump.

Furthermore, the cooling part comprises a flow dividing box and a cooling pipeline, the flow dividing box is provided with two groups, two groups of flow dividing boxes are arranged at two ends of the cooling pipeline, the cooling pipeline is communicated with the flow dividing boxes at the two ends, the two groups of flow dividing boxes are respectively communicated with the oil inlet and the oil outlet, the water inlet is positioned at one side of the oil outlet back to the cooling pipeline, and the water outlet is positioned at one side of the oil inlet back to the cooling pipeline.

Specifically, the cooling pipeline is not limited to a straight pipe shape, and may be a bent pipe or a mesh heat dissipation plate, etc., and has an effective path for dissipating heat of the hydraulic oil.

Furthermore, the both sides of dividing the flow box are the arc, divide flow box and water supply tank's inner wall fixed connection, water supply tank includes the box, the air inlet and outlet has been seted up to the upper end of box, the air inlet and outlet is suitable for reducing water supply tank's interior pressure. Specifically, the cooling pipeline is not limited to a straight pipe shape, and may be a bent pipe or a mesh heat dissipation plate, etc., and has an effective path for dissipating heat of the hydraulic oil.

Specifically, the shape of the shunting box is not limited to be only arc-shaped on two sides, but also rectangular and tubular; the flow distribution box plays the roles of storing oil and reducing flow speed.

Furthermore, be located fixedly connected with oiling pipe on the reposition of redundant personnel box of oil inlet department, the upper end of oiling pipe extends outside the water supply tank, be suitable for the upper end height that stores hydraulic oil and highly be higher than cooling pipeline in the oiling pipeline.

Further, a water inlet column is arranged on the water inlet and is suitable for penetrating through the box body and connected with the oil suction pipeline;

the height of the upper end of the water inlet column is higher than that of hydraulic oil in the oil injection pipeline.

Furthermore, the bottom ends of the flow distribution box and the cooling pipeline are provided with arc-shaped cavities.

Furthermore, a liquid level meter is installed outside the box body, the liquid level meter is C-shaped, and the upper end and the lower end of the liquid level meter are communicated with the inside of the box body.

Specifically, the liquid level meter is used for measuring the internal liquid level of the water supply tank, and a built-in sensor can be mounted on the inner wall of the water supply tank instead of the water supply tank for measuring the liquid level.

Further, the input pipeline is a high-pressure oil pipe.

Compared with the prior art, the utility model can obtain the following technical effects:

aiming at the problems that effective cooling cannot be achieved in the prior art, the cooling cost is too high, and the loss is too large, effective cooling is achieved through a cooling part designed in a water supply tank, most of cooling water in the water supply tank is used for ensuring the humidity in a mixing drum, the temperature does not need to be transited, and resources are further utilized through cooling in the water supply tank through the cooling part;

and secondly, the utility model reduces the need of an air-cooled radiator which is required to be independently arranged in the existing mixer truck, the existing air-cooled radiator needs electronic elements such as a motor, a fan, an aluminum fin radiating grid, a temperature sensor and the like, a power supply is required to be connected from a chassis and a control program is required to be arranged, and the failure frequency of the components such as the motor, the sensor and the like is higher, thereby influencing the stability of the overall work of the system. In addition, the structure is complex, and the manufacturing cost is too high; the hydraulic system for radiating by using the water supply tank has the advantages of few components, simple structure and low manufacturing cost, can complete the radiating function of the hydraulic system only by setting the lowest water level according to the system power, and saves the arrangement space of the components of the whole vehicle;

the arrangement of the arc-shaped cavity enhances the practicability of the mixer truck, and the oil injection pipe and the hydraulic oil in the oil injection pipe play a role in stabilizing the pressure of a cooling part of the water supply water tank; the height that the post was intake in the design is higher than notes oil pipe and inside hydraulic oil height, guarantees that water supply tank's water level is in higher position, guarantees the actual operating condition of cooling piece.

Drawings

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

FIG. 1 is a front view of the mixer truck of the present invention;

FIG. 2 is a connection diagram of the water supply tank and the hydraulic system of the present invention;

fig. 3 is an internal view of a water supply tank of the present invention;

FIG. 4 is a schematic view illustrating the operation of the water supply tank of the present invention;

fig. 5 is a side sectional view of the water supply tank of the present invention.

In the figure: 1. an oil pump; 100. an automobile chassis; 2. a water supply tank; 21. a box body; 22. a water inlet; 23. a water outlet; 24. an air inlet and an air outlet; 25. an oil inlet; 26. an oil outlet; 27. a shunt box; 28. a cooling pipeline; 29. an oil filling pipe; 200. a water supply system; 210. a water inlet column; 3. a motor; 300. a hydraulic system; 4. a speed reducer; 400. a mixing drum; 500. a frame; 600. a feeding and discharging system; 71. an input pipe; 72. an oil return line; 73. an oil suction pipeline; 700. a piping system.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

The application of the principles of the present invention will be further described with reference to the accompanying drawings and specific embodiments.

Example 1

As shown in fig. 1 to 5, in an embodiment of the present invention, a water-cooled hydraulic system mixer truck includes an automobile chassis 100, a frame 500, a mixing drum 400 and a piping system 700, wherein the mixing drum 400 is mounted on the automobile chassis 100, a tail end of the mixing drum 400 is mounted on the frame 500, a hydraulic system 300 and a water supply system 200 are mounted at a front end of the mixing drum 400, the water supply system 200 is mounted on the hydraulic system 300, a feeding and discharging system 600 is connected to the tail end of the mixing drum 400, and the feeding and discharging system 600 is located on a side of the frame 500 opposite to the water supply system 200;

the water supply system 200 comprises a water supply tank 2, a cooling member is installed in the water supply tank 2, the cooling member is suitable for being surrounded by cooling water, an oil inlet 25 and an oil outlet 26 are respectively arranged at the bottom end of the cooling member, and a water inlet 22 and a water outlet 23 are arranged on the water supply tank 2.

The hydraulic system 300 comprises an oil pump 1, a motor 3 and a speed reducer 4, wherein the input end of the oil pump 1 is suitable for being in transmission connection with an engine and rotating, the output end of the oil pump 1 is connected with an input pipeline 71, the input pipeline 71 is connected with the input end of the motor 3, the motor 3 is suitable for driving the speed reducer 4 to rotate and control steering, and the speed reducer 4 drives a stirring cylinder 400 to rotate. Oil return pipelines 72 are connected to the oil pump 1 and the motor 3, the two groups of oil return pipelines 72 are connected to the oil inlet 25 after being communicated, the oil outlet 26 is connected to an oil suction pipeline 73, and the oil suction pipeline 73 is connected to the oil outlet 26 and the oil pump 1.

Further, the cooling member includes a diversion box 27 and a cooling pipeline 28, the diversion box 27 is provided with two sets, the two sets of diversion boxes 27 are installed at two ends of the cooling pipeline 28, the cooling pipeline 28 is communicated with the diversion boxes 27 at the two ends, the two sets of diversion boxes 27 are respectively communicated with the oil inlet 25 and the oil outlet 26, the water inlet 22 is located at one side of the oil outlet 26, which is back to the cooling pipeline 28, and the water outlet 23 is located at one side of the oil inlet 25, which is back to the cooling pipeline 28.

For convenience of fixation, two sides of the flow dividing box 27 are set to be arc-shaped, the arc-shaped flow dividing box 27 is attached to the inner wall of the water supply tank 2, the flow dividing box 27 is fixedly connected with the inner wall of the water supply tank 2, the water supply tank 2 comprises a tank body 21, an air inlet and outlet 24 is formed in the upper end of the tank body 21, and the air inlet and outlet 24 is suitable for reducing the internal pressure of the water supply tank 2.

Further, be located fixedly connected with oiling pipe 29 on the reposition of redundant personnel box 27 of oil inlet 25 department, outside the upper end of oiling pipe 29 extended to water supply tank 2, oiling pipe 29 was said and is suitable for the upper end height and the upper end of storing hydraulic oil and highly being higher than cooling pipeline 28 and normally open, and the guarantee atmospheric pressure is sealed, and reduces the influence of water supply tank 2's inside air to cooling oil pressure.

Further, a water inlet column 210 is installed on the water inlet 22, and the water inlet column 210 is adapted to penetrate through the tank 21 and is connected with the oil suction pipeline 73;

the height of the upper end of the water inlet column 210 is higher than the height of the hydraulic oil in the oil filling pipe 29. The upper end height of water inlet 22 and intake column 210 is higher than the height of the hydraulic oil in filler pipe 29, be greater than the planar maximum height on cooling line 28 promptly, it maintains hydraulic system 300 normal work to remain sufficient cooling water in the water supply tank 2 in order to guarantee churn 400 during operation, the height of the hydraulic oil of water injection liquid level height assurance in filler pipe 29 promptly, can install level sensor additional in water supply tank 2 inside, output signal control water supply system water supply switch realizes stable water yield.

Further, the bottom ends of the flow distribution box 27 and the cooling pipe 28 are provided with arc-shaped cavities. An arc-shaped cavity is left between the lower part of the diversion box 27 and the box body 21 to ensure that the water in the water tank can be completely discharged through the water outlet 23, and the water tank is used for preventing the water tank from being frozen and damaged when the inside of the water supply water tank 2 is cleaned in a non-working state or the vehicle is stopped in a cold area

Further, a liquid level meter is arranged outside the box body 21 and is C-shaped, and the upper end and the lower end of the liquid level meter are communicated with the inside of the box body 21.

Further, the input pipeline 71 is a high-pressure oil pipe, and the oil pump 1 is driven by the generator, and the oil pump 1 changes the space in the cavity through an inclined shaft or an inclined disc to compress the volume of hydraulic oil so as to increase the pressure of the hydraulic oil, so that the high-pressure oil pipe is required to bear pressure.

The working principle is as follows:

before operation, it is necessary to inject hydraulic oil from the upper end of the oil feed pipe 29 of the water supply tank 2 at a level exceeding the maximum level of the upper surface of the cooling circuit 28, and then to close the oil feed pipe 29. When the mixing drum 400 works, the engine transmits a rotating torque to the oil pump 1 through the transmission shaft, high-pressure oil generated by the oil pump 1 is transmitted to the motor 3 through the high-pressure input pipeline 71, the motor 3 converts pressure energy generated by the oil pump into the rotating torque to drive the speed reducer 4 to rotate, and the speed reducer 4 drives the mixing drum 400 to rotate so as to achieve the working purpose of the mixing drum 400.

Meanwhile, the hydraulic oil enters the water supply tank 2 through the oil pump 1 and the oil return pipeline 72 of the motor 3, flows through the oil inlet 25, upwards flows through the diversion box 27 on the oil inlet 25, transversely flows through the cooling pipeline 28, then flows through the diversion box 27 on the oil outlet 26 to the oil outlet 26, enters the oil suction pipeline 73 of the oil pump 1, and enters the oil pump 1 again to complete the hydraulic circulation and the cooling circulation.

Oil pump 1 during operation produces the heat and causes the hydraulic oil temperature to rise, and hydraulic oil gives the cooling water in the water supply tank 2 with the heat cold and hot transmission when flowing through water supply tank 2 to outwards give off through box 21, accomplish heat dissipation cooling function.

When the water supply tank 2 is filled with water, the air inlet and outlet 24 is opened to exhaust air, the water inlet connector in the water supply system 200 is connected with an external water source, cooling water is added from the water inlet 22 of the water supply tank 2, the external water source is cut off when the water supply is finished, and the air inlet and outlet 24 is closed. When the water supply tank 2 performs a water supply function, the air inlet and outlet 24 is opened to be communicated with a high-pressure air source of the automobile chassis 100, a water supply switch of the water supply system 200 is opened, and cooling water reversely flows out from the water inlet 22 to supply water; the drain port 23 is in a normally closed state.

The height of the upper ends of the water inlet 22 and the water inlet column 210 is higher than the maximum height of the upper plane of the cooling pipeline 28, so as to ensure that enough cooling water is reserved in the water supply tank 2 to maintain the normal operation of the hydraulic system 300 when the mixer truck works; an arc-shaped cavity is reserved between the lower part of the diversion box 27 and the box body 21, so that water in the water tank can be completely discharged through the water outlet 23, and the water tank is used for preventing the water tank from being frozen and damaged when the interior of the water supply water tank 2 is cleaned in a non-working state or the vehicle is parked in a cold area.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a water-cooled hydraulic system trucd mixer which characterized in that: the automatic stirring device comprises an automobile chassis (100), a frame (500), a stirring cylinder (400) and a pipeline system (700), wherein the stirring cylinder (400) is installed on the automobile chassis (100), the tail end of the stirring cylinder (400) is installed on the frame (500), the front end of the stirring cylinder (400) is provided with a hydraulic system (300) and a water supply system (200), the water supply system (200) is installed on the hydraulic system (300), the tail end of the stirring cylinder (400) is connected with a feeding and discharging system (600), and the feeding and discharging system (600) is positioned on one side, back to the water supply system (200), of the frame (500);

the water supply system (200) comprises a water supply tank (2), a cooling piece is installed in the water supply tank (2), the cooling piece is suitable for being surrounded by cooling water, an oil inlet (25) and an oil outlet (26) are respectively arranged at the bottom end of the cooling piece, and a water inlet (22) and a water outlet (23) are formed in the water supply tank (2).

2. The water-cooled hydraulic system mixer truck of claim 1, wherein: hydraulic system (300) includes oil pump (1), motor (3) and speed reducer (4), the input of oil pump (1) is suitable for to be connected and rotatory with the engine transmission, the output of oil pump (1) is connected with input pipeline (71), the input of motor (3) is connected in input pipeline (71), motor (3) are suitable for to drive speed reducer (4) rotation and control and turn to, all be connected with oil return pipeline (72) on oil pump (1) and motor (3), two sets of oil return pipeline (72) are suitable for to connect the back and connect in oil inlet (25) department, oil-out (26) department is connected with oil absorption pipeline (73), oil absorption pipeline (73) are suitable for connecting oil-out (26) and oil pump (1).

3. The water-cooled hydraulic system mixer truck of claim 1, wherein: the cooling part comprises a flow dividing box (27) and a cooling pipeline (28), the flow dividing box (27) is provided with two groups, the two groups of flow dividing boxes (27) are arranged at two ends of the cooling pipeline (28), the cooling pipeline (28) is communicated with the flow dividing boxes (27) at the two ends, the two groups of flow dividing boxes (27) are respectively communicated with an oil inlet (25) and an oil outlet (26), the water inlet (22) is positioned at one side, back to the cooling pipeline (28), of the oil outlet (26), and the water outlet (23) is positioned at one side, back to the cooling pipeline (28), of the oil inlet (25).

4. The water-cooled hydraulic system mixer truck of claim 3, wherein: the both sides of reposition of redundant personnel box (27) are the arc, reposition of redundant personnel box (27) and the inner wall fixed connection of water supply tank (2), water supply tank (2) are including box (21), air inlet and outlet (24) have been seted up to the upper end of box (21), air inlet and outlet (24) are suitable for reducing the internal pressure of water supply tank (2).

5. The water-cooled hydraulic system mixer truck according to claim 4, wherein: an oil filling pipe (29) is fixedly connected to the flow dividing box (27) located at the oil inlet (25), the upper end of the oil filling pipe (29) extends out of the water supply water tank (2), and the oil filling pipe (29) is suitable for storing hydraulic oil and is higher than the upper end of the cooling pipeline (28).

6. The water-cooled hydraulic system mixer truck of claim 5, wherein: a water inlet column (210) is arranged on the water inlet (22), and the water inlet column (210) is suitable for penetrating through the box body (21) and is connected with the oil suction pipeline (73);

the height of the upper end of the water inlet column (210) is higher than that of hydraulic oil in the oil filling pipe (29).

7. The water-cooled hydraulic system mixer truck of claim 3, wherein: the bottom ends of the flow distribution box (27) and the cooling pipeline (28) are provided with arc-shaped cavities.

8. The water-cooled hydraulic system mixer truck of claim 4, wherein: the liquid level meter is arranged outside the box body (21) and is C-shaped, and the upper end and the lower end of the liquid level meter are communicated with the inside of the box body (21).

9. The water-cooled hydraulic system mixer truck of claim 2, wherein: the input pipeline (71) is a high-pressure oil pipe.