Hydraulic motor with hot oil changeover device

Abstract

The utility model discloses a kind of hydraulic motor with hot oil conversion device, it is related to hydraulic motor technical field, including motor body, the outer surface of motor body is provided with oil outlet and oil inlet, the outer surface of motor body is fixedly connected with heat insulation pad, the outer side of heat insulation pad is fixedly connected with heat dissipation ring, spiral flow channel is arranged in the inside of heat dissipation ring, the outer side of heat dissipation ring is fixedly connected with heat conduction plate, the outer surface of motor body is fixedly connected with annular air flow plate in the lower side of heat conduction plate, annular air flow plate is arranged with annular flow channel in the inside, the upper end of annular air flow plate is penetrated with multiple evenly distributed air injection port, the utility model is cooled by setting spiral flow channel, heat dissipation fin and annular air flow plate to motor body is assisted heat dissipation, the speed of hot oil is accelerated, the stability of motor under long-term operation can be improved, the stability of motor under long-term operation is improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic motor technology, specifically to a hydraulic motor with a hot oil conversion device. Background Technology

[0002] Hydraulic motors are core power devices that convert high-pressure hydraulic energy in a hydraulic system into mechanical energy. Their working principle is to drive the internal rotor to rotate through high-pressure hydraulic oil, thereby driving the load to operate. They are widely used in heavy equipment such as excavators, loaders, and tunnel boring machines.

[0003] Traditional hydraulic motors rely solely on the natural heat dissipation of the motor casing, which is insufficient to quickly dissipate the heat generated by the hydraulic oil during operation. This leads to a continuous increase in hydraulic oil temperature, which not only reduces the viscosity and lubrication performance of the hydraulic oil and accelerates oil aging, but also raises the temperature of the motor body and shortens the service life of internal parts. To address these issues, a hydraulic motor with a heat exchanger is proposed. Utility Model Content

[0004] To solve the above-mentioned technical problems, a hydraulic motor with a hot oil conversion device is provided. This technical solution solves the problem mentioned in the background art that traditional hydraulic motors rely solely on the natural heat dissipation of the motor casing, which makes it difficult to quickly remove the heat generated by the hydraulic oil during work. This results in a continuous increase in the temperature of the hydraulic oil, which not only reduces the viscosity and lubrication performance of the hydraulic oil and accelerates oil aging, but also increases the temperature of the motor body and shortens the service life of internal parts.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A hydraulic motor with a hot oil conversion device includes a motor body. The outer surface of the motor body is provided with an oil outlet and an oil inlet. A heat insulation pad is fixedly connected to the outer surface of the motor body. A heat dissipation ring is fixedly connected to the outer side of the heat insulation pad. A spiral flow channel is opened inside the heat dissipation ring. A heat conduction plate is fixedly connected to the outer side of the heat conduction plate. An annular airflow plate is fixedly connected to the outer surface of the motor body below the heat conduction plate. An annular flow channel is opened inside the annular airflow plate. Multiple evenly distributed air jets are opened through the upper end of the annular airflow plate. A miniature air pump is fixedly installed at the lower end of the motor body.

[0006] Preferably, the outer surface of the heat-conducting plate is fixedly connected with a plurality of evenly distributed heat dissipation fins.

[0007] Preferably, the two ends of the spiral flow channel are respectively connected to an infusion pipe and a return pipe, and the other end of the infusion pipe is connected to the oil outlet.

[0008] Preferably, a protective shell is fixedly connected to the lower edge of the motor body by bolts.

[0009] Preferably, the output end of the micro air pump is fixedly connected to an air delivery pipe, and the other end of the air delivery pipe passes through the inner side of the protective shell and communicates with the interior of the annular airflow plate.

[0010] Preferably, the input end of the micro air pump is fixedly connected to an air inlet pipe, and the other end of the air inlet pipe penetrates the inside of the protective shell.

[0011] The advantages of this utility model compared with the prior art are: This solution proposes a hydraulic motor with a hot oil conversion device. By setting up a spiral flow channel, heat dissipation fins and an annular airflow plate, the motor body is provided with auxiliary heat dissipation, which accelerates the cooling speed of hot oil. This can avoid the performance degradation of hydraulic oil and motor overheating caused by excessive oil temperature, and improve the stability of the motor under long-term operation. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a structural schematic diagram of the present invention from another perspective; Figure 3 This is a schematic diagram of the installation of the miniature air pump in this utility model; Figure 4 This is a schematic diagram of the heat dissipation ring in this utility model; Figure 5 This is a schematic diagram of the annular airflow plate in this utility model; Figure 6 This is a schematic diagram of the heat-conducting plate in this utility model.

[0013] The numbers on the map are: 1. Motor body; 101. Oil outlet; 102. Oil inlet; 2. Heat insulation pad; 3. Heat dissipation ring; 301. Spiral flow channel; 4. Heat conduction plate; 5. Heat dissipation fins; 6. Annular airflow plate; 601. Annular flow channel; 602. Jet nozzle; 7. Miniature air pump; 8. Air delivery pipe; 9. Air inlet pipe; 10. Protective shell; 11. Infusion pipe; 12. Return pipe. Detailed Implementation

[0014] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art.

[0015] Reference Figures 1-6As shown, a hydraulic motor with a hot oil conversion device includes a motor body 1. The outer surface of the motor body 1 is provided with an oil outlet 101 and an oil inlet 102. A heat insulation pad 2 is fixedly connected to the outer surface of the motor body 1. A heat dissipation ring 3 is fixedly connected to the outer side of the heat insulation pad 2. A spiral flow channel 301 is opened inside the heat dissipation ring 3. A heat conduction plate 4 is fixedly connected to the outer side of the heat conduction plate 4. An annular airflow plate 6 is fixedly connected to the outer surface of the motor body 1 below the heat conduction plate 4. An annular flow channel 601 is opened inside the annular airflow plate 6. Multiple evenly distributed air jets 602 are opened through the upper end of the annular airflow plate 6. A micro air pump 7 is fixedly installed at the lower end of the motor body 1.

[0016] Furthermore, several evenly distributed heat dissipation fins 5 are fixedly connected to the outer surface of the heat-conducting plate 4.

[0017] Furthermore, the two ends of the spiral flow channel 301 are respectively connected to the infusion pipe 11 and the return pipe 12, and the other end of the infusion pipe 11 is connected to the oil outlet 101.

[0018] Furthermore, a protective shell 10 is fixedly connected to the lower edge of the motor body 1 by bolts.

[0019] Furthermore, the output end of the micro air pump 7 is fixedly connected to an air supply pipe 8, the other end of which penetrates the inner side of the protective shell 10 and communicates with the interior of the annular airflow plate 6. The input end of the micro air pump 7 is fixedly connected to an air inlet pipe 9, the other end of which penetrates the inner side of the protective shell 10.

[0020] Furthermore, when the motor body 1 is working, high-pressure hydraulic oil enters from the oil inlet 102, driving the rotor inside the motor body 1 to rotate and output mechanical energy. After the energy conversion is completed, the heated hydraulic oil is discharged from the oil outlet 101 and enters the spiral flow channel 301 of the heat dissipation ring 3 through the liquid delivery pipe 11.

[0021] Furthermore, both the heat dissipation ring 3 and the heat conduction plate 4 are made of copper alloy, which has a high thermal conductivity. The heat dissipation ring 3 serves as a heat dissipation carrier for the hot oil. When the hot oil passes through the spiral flow channel 301, the heat is transferred through the metal wall of the heat dissipation ring 3 to the outer heat conduction plate 4. The heat insulation pad 2 prevents the heat from being transferred back to the motor body 1. The spiral structure of the flow channel extends the residence time of the hot oil in the flow channel, ensuring that the heat is fully transferred and helping to improve the heat dissipation effect. The heat conduction plate 4 is used to further conduct the heat transferred by the heat dissipation ring 3 to the heat dissipation fins 5. The heat dissipation fins 5 increase the heat dissipation area and improve the efficiency of heat dissipation.

[0022] Furthermore, the return pipe 12 is sealed and connected to the outlet end of the spiral flow channel 301, and the other end is connected to an external hydraulic oil tank. Its function is to send the hydraulic oil that has been cooled by the heat dissipation ring 3 back to the oil tank, so that the hydraulic oil can be reused. Furthermore, the micro air pump 7 is a small high-pressure air pump. When the micro air pump 7 is working, it draws in external air through the air inlet pipe 9 and delivers it to the annular flow channel 601 of the annular airflow plate 6 through the air delivery pipe 8. The annular flow channel 601 will convert the concentrated airflow delivered by the micro air pump 7 into a uniformly distributed airflow and deliver it to the jet nozzle 602. The jet nozzle 602 sprays the high-pressure airflow in the annular flow channel 601 toward the heat dissipation fins 5 in a vertically upward direction, so that the airflow flows over the surface of the heat dissipation fins 5 and carries away the heat dissipated by the heat dissipation fins 5, thereby accelerating heat dissipation. Working principle: When the motor is in use, high-pressure hydraulic oil from the external hydraulic system enters the motor body 1 through the inlet 102, driving the internal rotor to rotate and converting hydraulic energy into mechanical energy. After the energy conversion is completed, the hydraulic oil temperature rises due to friction and energy loss, forming high-temperature hot oil, which is discharged from the outlet 101. The high-temperature hot oil enters the spiral flow channel 301 of the heat dissipation ring 3 through the inlet pipe 11 and flows slowly along the spiral path. Since the heat dissipation ring 3 is made of high thermal conductivity copper alloy, the heat of the hot oil is quickly transferred to the outer heat conduction surface through the heat dissipation ring 3. The heat is evenly transferred from plate 4 to heat dissipation fins 5. At the same time, micro air pump 7 starts and draws in ambient temperature air through air inlet pipe 9. After internal compression, it forms a high-pressure airflow, which is delivered to the annular flow channel 601 of the annular airflow plate 6 through air delivery pipe 8. The annular flow channel 601 evenly distributes the concentrated airflow to each jet nozzle 602. The jet nozzle 602 sprays the airflow onto the surface of heat dissipation fins 5 in a vertically upward direction. When the airflow flows through heat dissipation fins 5, it quickly removes the heat from the fin surface, accelerates the dissipation of heat from the hot oil, and further reduces the temperature of the hydraulic oil.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A hydraulic motor with a hot oil conversion device, characterized in that, The motor body (1) is provided with an oil outlet (101) and an oil inlet (102) on its outer surface. A heat insulation pad (2) is fixedly connected to the outer surface of the motor body (1). A heat dissipation ring (3) is fixedly connected to the outer side of the heat insulation pad (2). A spiral flow channel (301) is opened inside the heat dissipation ring (3). A heat conduction plate (4) is fixedly connected to the outer side of the heat conduction plate (4). An annular airflow plate (6) is fixedly connected to the lower side of the heat conduction plate (4) on the outer surface of the motor body (1). An annular flow channel (601) is opened inside the annular airflow plate (6). Multiple uniformly distributed jet nozzles (602) are opened through the upper end of the annular airflow plate (6). A micro air pump (7) is fixedly installed at the lower end of the motor body (1).

2. A hydraulic motor with a hot oil conversion device according to claim 1, characterized in that: The outer surface of the heat-conducting plate (4) is fixedly connected with several evenly distributed heat dissipation fins (5).

3. A hydraulic motor with a hot oil conversion device according to claim 1, characterized in that: The spiral flow channel (301) is connected to an infusion pipe (11) and a return pipe (12) at both ends, and the other end of the infusion pipe (11) is connected to the oil outlet (101).

4. A hydraulic motor with a hot oil conversion device according to claim 1, characterized in that: A protective shell (10) is fixedly connected to the lower edge of the motor body (1) by bolts.

5. A hydraulic motor with a hot oil conversion device according to claim 1, characterized in that: The output end of the micro air pump (7) is fixedly connected to an air supply pipe (8), and the other end of the air supply pipe (8) passes through the inner side of the protective shell (10) and communicates with the interior of the annular airflow plate (6).

6. A hydraulic motor with a hot oil conversion device according to claim 1, characterized in that: The input end of the micro air pump (7) is fixedly connected to an air inlet pipe (9), and the other end of the air inlet pipe (9) penetrates the inside of the protective shell (10).

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