CN218997867U - Motor cooling system in electric drive horizontal directional drilling machine - Google Patents
Motor cooling system in electric drive horizontal directional drilling machine Download PDFInfo
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- CN218997867U CN218997867U CN202221945403.XU CN202221945403U CN218997867U CN 218997867 U CN218997867 U CN 218997867U CN 202221945403 U CN202221945403 U CN 202221945403U CN 218997867 U CN218997867 U CN 218997867U
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Abstract
The application relates to the technical field of electric drive cooling systems in directional drilling machines, in particular to a motor cooling system in an electric drive horizontal directional drilling machine, which comprises a cooling component for cooling water for a motor and a water supply component for supplying water for the cooling component; the cooling assembly includes an oil cooler; the oil cooling piece comprises an oil cooling shell covered on the motor coil, a pair of oil filling ports are arranged on the oil cooling shell, and a water cooling piece is arranged on the oil cooling shell. This application has the effect that prevents motor temperature too high, guarantees motor life.
Description
Technical Field
The application relates to the technical field of electric drive cooling systems in directional drilling machines, in particular to a motor cooling system in an electric drive horizontal directional drilling machine.
Background
I have developed a directional drilling machine that uses multiple electric drives to replace the original hydraulic drive. The electric drive wants to obtain the torque output by the original hydraulic drive in the practical process, and the electric drive output shaft is required to pass through a gear box with a certain transmission ratio, so that the rotating speed of the motor is reduced, the output torque is increased, namely, after the rotating speed of the electric drive is increased, the output torques of a plurality of motors are integrated through the gear box and then are uniformly output, and therefore the torque requirement is met.
However, in the experimental stage, the motor rotation speed in the electric drive is found to be high, so that the friction heat and the inductance heat in the motor are too high, and are accumulated in a short time, and the condition of burning out the rotor coil in the electric drive is caused to occur. There is therefore a need for a cooling system for cooling an electrically driven horizontal directional drilling machine.
Disclosure of Invention
In order to solve the technical problem, the application provides a motor cooling system in an electric drive horizontal directional drilling machine, which has the advantages of preventing the motor from being too high in temperature and guaranteeing the service life of the motor.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
a motor cooling system in an electrically driven horizontal directional drilling machine comprises a cooling assembly for cooling water for a motor and a water supply assembly for supplying water for the cooling assembly;
the cooling assembly includes an oil cooler; the oil cooling piece comprises an oil cooling shell covered on the motor coil, a pair of oil filling ports are arranged on the oil cooling shell, and a water cooling piece is arranged on the oil cooling shell.
According to the technical scheme, the insulating cooling liquid can be injected into the oil cooling shell through the oil injection port, so that the motor is directly immersed in the insulating cooling liquid, and heat generated by the coil can be rapidly absorbed by the insulating cooling liquid, and the coil is prevented from being overhigh in temperature; in order to prevent the temperature of the insulating cooling liquid from being too high, the water cooling piece can cool the oil cooling shell and the cooling liquid in the oil cooling shell, so that the coil temperature is ensured not to be too high.
As a preferred scheme of this application, the water-cooling spare is including the cover and establish the water-cooling shell on oily cold shell, be provided with water inlet and delivery port on the water-cooling shell, the water inlet passes through the pipeline and is connected with water supply assembly.
The technical scheme is realized, namely cold water is supplied into the water cooling shell through the water supply assembly, so that the temperature of the oil cooling shell can be quickly reduced by the cooling water, heat in insulating cooling liquid in the oil cooling shell is taken away through the oil cooling shell, and the temperature of the cooling liquid is prevented from rising.
As a preferred scheme of this application, oil cooling shell and water-cooling shell are integrative to be made, be provided with a plurality of fin on the lateral wall that oil cooling shell is close to water-cooling shell one side, a plurality of fin of complaining are along the equidistant crisscross setting of oil cooling shell circumference inside and outside.
According to the technical scheme, the radiating fins extend into the insulating cooling liquid in part, and a part of the radiating fins extend into the cooling water, so that the heat exchange area between the insulating cooling liquid and the cooling water and the oil cooling shell is increased, the fan heating effect of the insulating cooling liquid is improved, and the cooling effect of coils in the motor is further guaranteed.
As a preferred scheme of this application, the water supply subassembly includes coolant tank, coolant tank passes through the pipeline and links to each other with the water inlet, be provided with the water pump on the connecting tube between coolant tank and the water inlet.
The technical scheme is realized, so that the water pump can supply cold water in the cold water tank into the water-cooling shell, and the continuous supply of the cold water is realized.
As a preferred solution of the present application, the water outlet is connected to the cooling water tank by a pipe.
According to the technical scheme, the water outlet is connected with the cooling water tank through the pipeline, so that cooling water in the water-cooled shell can flow back to the cooling water tank, and circulating cooling is completed.
As a preferable scheme of the application, a rotating groove for rotating the motor rotor is formed in the water cooling shell, and a shaft seal is arranged on the rotating groove.
The technical scheme is realized, so that the cooling water in the water-cooled shell can cool the rotating shaft of the rotor, and the service life of the motor is further ensured.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the insulating cooling liquid is injected into the oil cooling shell through the oil injection port, so that the motor is directly immersed in the insulating cooling liquid, and at the moment, heat generated by the coil can be rapidly absorbed by the insulating cooling liquid, and the coil is prevented from being overhigh in temperature; in order to prevent the temperature of the insulating cooling liquid from being too high, the water cooling piece can cool the oil cooling shell and the cooling liquid in the oil cooling shell, so that the coil temperature is ensured not to be too high.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of a motor cooling system in an electrically driven horizontal directional drilling machine according to an embodiment of the present application.
Fig. 2 is a cross-sectional view of a motor cooling system in an electrically driven horizontal directional drilling machine according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of an oil cooling shell in a motor cooling system in an electrically driven horizontal directional drilling machine according to an embodiment of the present application.
Reference numerals: 1. a cold-defect assembly; 11. an oil cooling shell; 12. an oil filling port; 13. a shaft seal; 14. a water-cooling shell; 15. a heat sink; 16. a water inlet; 17. a water outlet; 2. a water supply assembly; 21. a cooling water tank; 22. a water pump; 3. a rotor; 4. a coil.
Description of the embodiments
The present application is described in further detail below in conjunction with figures 1-3.
The embodiment of the application discloses a motor cooling system in an electrically-driven horizontal directional drilling machine. Referring to fig. 1, a motor cooling system in an electrically driven horizontal directional drilling machine includes a cooling assembly for cooling a motor and a water supply assembly 2 for supplying water to the cooling assembly.
The cooling assembly comprises an oil cooling shell 11, the oil cooling shell 11 is covered on a coil 4 of the motor, the coil 4 is located inside the oil cooling shell 11, a pair of oil filling ports 12 are formed in the oil cooling shell 11, an opening and closing valve is arranged on the oil filling ports 12, and insulating cooling liquid can be filled into the oil cooling shell 11 through the oil filling ports 12, so that the motor is directly immersed in the insulating cooling liquid, heat generated by the coil 4 can be quickly absorbed by the insulating cooling liquid, and the coil 4 is prevented from being overhigh in temperature. When the coil 4 is used as a stator, the coil 4 is fixed on the inner wall of the oil-cooled shell 11, and the oil-cooled shell 11 is made of high-temperature-resistant plastic so as to prevent the coil from interfering with the magnetic field of the coil. The oil cooling shell 11 is provided with a rotating groove for the rotor 3 to rotate, and a shaft seal is arranged between the rotating groove and the rotation, so that the normal performance of the motor function is ensured.
Meanwhile, in order to prevent the temperature of the insulating cooling liquid from being too high, a water cooling shell 14 is sleeved outside the oil cooling shell 11, and the water cooling shell 14 and the oil cooling shell 11 are integrally manufactured. The water-cooling shell 14 is provided with a water inlet 16 and a water outlet 17, and the water inlet 16 is connected with the water supply assembly 2 through a pipeline. Namely, the water supply assembly 2 is used for injecting cooling water into the water cooling shell 14, so that the cooling water can quickly reduce the temperature of the oil cooling shell 11, heat in insulating cooling liquid in the oil cooling shell 11 is taken away through the oil cooling shell 11, and the temperature of the cooling liquid is prevented from rising. Meanwhile, in order to increase the heat exchange rate between the cooling water and the cooling liquid, a plurality of cooling fins 15 are arranged on the side wall of the oil cooling shell 11, which is close to one side of the water cooling shell 14, and the cooling fins 15 are arranged at equal intervals in the circumferential direction of the oil cooling shell 11, so that the cooling fins 15 extend into the insulating cooling liquid partially, and a part of the cooling fins extend into the cooling water, so that the heat exchange area between the insulating cooling liquid, the cooling water and the oil cooling shell 11 is increased, the heat-dissipating effect of the insulating cooling liquid is improved, and the cooling effect of the coil 4 in the motor is further ensured.
The water supply assembly 2 comprises a cooling water tank 21, the cooling water tank 21 is connected with the water inlet 16 through a pipeline, and a water pump 22 is arranged on the pipeline between the cooling water tank 21 and the water inlet 16, so that the water pump 22 can supply cold water in the cooling water tank into the water cooling shell 14. The water outlet 17 is connected with the cooling water tank 21 through a pipe so that the cooling water in the water-cooled shell 14 can flow back into the cooling water tank 21, thereby completing the circulation cooling.
The implementation principle of the motor cooling system in the electric drive horizontal directional drilling machine is as follows: the insulating cooling liquid is injected into the oil cooling shell 11 through the oil injection port 12, so that the motor is directly immersed in the insulating cooling liquid, and at the moment, heat generated by the coil 4 can be quickly absorbed by the insulating cooling liquid, so that the coil 4 is prevented from being overhigh in temperature; in order to prevent the temperature of the insulating cooling liquid from being too high, the water supply assembly 2 supplies cooling water into the water cooling shell 14 to cool the oil cooling shell 11 and the cooling liquid therein, so that the temperature of the coil 4 is not too high.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (6)
1. A motor cooling system in an electrically driven horizontal directional drilling machine is characterized in that: comprises a cooling component for cooling water to the motor and a water supply component (2) for supplying water to the cooling component;
the cooling assembly includes an oil cooler; the oil cooling part comprises an oil cooling shell (11) covered on the motor coil (4), a pair of oil filling ports (12) are formed in the oil cooling shell (11), an opening and closing valve is arranged on the oil filling ports (12), and a water cooling part is arranged on the oil cooling shell (11).
2. The motor cooling system in an electrically driven horizontal directional drilling machine of claim 1, wherein: the water cooling piece comprises a water cooling shell (14) covered on the oil cooling shell (11), a water inlet (16) and a water outlet (17) are arranged on the water cooling shell (14), and the water inlet (16) is connected with the water supply assembly (2) through a pipeline.
3. The motor cooling system in an electrically driven horizontal directional drilling machine of claim 2, wherein: the oil cooling shell (11) and the water cooling shell (14) are integrally manufactured, a plurality of cooling fins (15) are arranged on the side wall, close to one side of the water cooling shell (14), of the oil cooling shell (11), and the cooling fins (15) are arranged at equal intervals in a staggered mode along the circumferential direction of the oil cooling shell (11).
4. The motor cooling system in an electrically driven horizontal directional drilling machine of claim 2, wherein: the water supply assembly (2) comprises a cooling water tank (21), the cooling water tank (21) is connected with the water inlet (16) through a pipeline, and a water pump (22) is arranged on a connecting pipeline between the cooling water tank (21) and the water inlet (16).
5. The motor cooling system in an electrically driven horizontal directional drilling machine of claim 4, wherein: the water outlet (17) is connected with the cooling water tank (21) through a pipeline.
6. The motor cooling system in an electrically driven horizontal directional drilling machine of claim 2, wherein: the water cooling shell (14) is provided with a rotating groove for the rotation of the motor rotor (3), and the rotating groove is provided with a shaft seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221945403.XU CN218997867U (en) | 2022-07-26 | 2022-07-26 | Motor cooling system in electric drive horizontal directional drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221945403.XU CN218997867U (en) | 2022-07-26 | 2022-07-26 | Motor cooling system in electric drive horizontal directional drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218997867U true CN218997867U (en) | 2023-05-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221945403.XU Active CN218997867U (en) | 2022-07-26 | 2022-07-26 | Motor cooling system in electric drive horizontal directional drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218997867U (en) |
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2022
- 2022-07-26 CN CN202221945403.XU patent/CN218997867U/en active Active
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