CN218733700U

CN218733700U - Motor cooling system of electric drive type excavator

Info

Publication number: CN218733700U
Application number: CN202221945587.XU
Authority: CN
Inventors: 梁敏
Original assignee: Suzhou Keyi Oil Gas Engineering Equipment Service Co ltd
Current assignee: Suzhou Keyi Oil Gas Engineering Equipment Service Co ltd
Priority date: 2022-07-26
Filing date: 2022-07-26
Publication date: 2023-03-24
Anticipated expiration: 2032-07-26

Abstract

The application relates to the technical field of motor cooling systems of electric driving excavators, in particular to a motor cooling system of an electric driving excavator, which comprises a water cooling frame, wherein a water cooling assembly and an air cooling assembly are arranged on the water cooling frame; the water cooling assembly comprises a cooling water tank sleeved on the motor, a water inlet and a water outlet are formed in the cooling water tank, and the water outlet is connected with a water spraying and heat dissipating piece through a pipeline. This application prevents that the motor temperature is too high to guarantee motor life's advantage.

Description

Motor cooling system of electric drive type excavator

Technical Field

The application relates to the technical field of motor cooling systems of electric driving excavators, in particular to a motor cooling system of an electric driving excavator.

Background

With the development of the existing brushless motor, the torque force and the rotating speed of the brushless motor are greatly improved compared with those of the existing brushless motor, so that a technical scheme that an electric drive system replaces the original diesel drive is developed. The power supply has the advantages of energy conservation and emission reduction, and meanwhile, in order to guarantee the endurance, working hours and the like of the power supply, the power supply is supplied to the motor in a mode of a towline type external power supply.

However, the cooling system can work in a constant theory because of the direction of the dragging line, but when the motor is started and rotated for a long time, the temperature in the motor gradually rises, and further, the metal fatigue period of parts in the motor is shortened, and the service life of the motor is further reduced, so that the development of the motor cooling system of the electric drive excavator is urgently needed.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the application provides an electric drive type excavator's motor cooling system, and it has the advantage that prevents the motor high temperature to guarantee motor life.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

a motor cooling system of an electric drive type excavator comprises a water cooling frame, wherein a water cooling assembly and an air cooling assembly are arranged on the water cooling frame;

the water cooling assembly comprises a cooling water tank sleeved on the motor, a water inlet and a water outlet are formed in the cooling water tank, and the water outlet is connected with a water spraying and heat dissipating piece through a pipeline.

The technical scheme is realized, so that the water inlet can be externally connected with a water source (such as tap water) through a pipeline, water is supplied to the cooling water tank through the water source, cold tap water gradually goes upwards through the cooling water tank and then is discharged from the water outlet, and therefore the cooling water can take away heat transferred to the cooling water tank by the motor, and the overhigh heat of the motor is prevented; and meanwhile, the cooling effect can be further improved by combining water cooling and air cooling, so that the service life of the motor is ensured.

As an optimal scheme of this application, water spray heat dissipation spare includes the annular spray pipe, the equidistant a plurality of water jets that are provided with of annular spray pipe, be provided with a plurality of cooling bath on the lateral wall of cooling water tank and motor laminating, the water jet sets up with the cooling bath relatively.

Realize above-mentioned technical scheme, be provided with a plurality of cooling bath relative with the water jet on the cooling water tank inner wall, and then make and bump mouth of a river spun rivers and can enter into the cooling bath and contact with the motor to make rivers can directly evaporate on motor housing, thereby improve the radiating effect.

As a preferable scheme of the application, an electric control timing opening and closing valve is arranged on a connecting pipeline between the annular water spraying pipe and the water outlet.

The technical scheme is realized, so that the effect of spraying water into the cooling tank at regular time is realized, and the effect of forcibly cooling by spraying water at regular time is achieved.

As a preferred scheme of this application, the cooling tank below is provided with the return water tank.

The technical scheme is realized, so that the cooling water can flow back to the water return tank for subsequent recycling.

As a preferable scheme of the application, a spiral climbing partition plate is arranged inside the cooling water tank.

By the technical scheme, after water flows enter from the water inlet, the water flows spirally climb to the water outlet, so that the water flow rate is increased, and the cooling effect is improved.

As a preferred scheme of this application, the forced air cooling subassembly is including setting up the annular blowing pipe in cooling water tank below, be provided with a plurality of slopes on the annular blowing pipe and upwards blow mouthful, just annular blowing pipe has the air-blower through the pipe connection.

The technical scheme is realized, namely, air flow is blown into the annular blowing pipes through the air blower and then blown out from each blowing port, so that the motor is subjected to air cooling; meanwhile, the air flow can also blow into the cooling tank, so that the evaporation of water in the cooling tank is accelerated, and the heat dissipation effect is improved.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the water inlet can be externally connected with a water source (such as tap water) through a pipeline, water is supplied to the cooling water tank through the water source, cold tap water gradually goes upwards through the cooling water tank and then is discharged from the water outlet, so that the cooling water can take away heat transferred to the cooling water tank by the motor, and the overhigh heat of the motor is prevented; meanwhile, the cooling effect can be further improved by combining water cooling and air cooling, so that the service life of the motor is ensured;

2. blowing air flow into the annular air blowing pipes through the air blower, and blowing the air flow out of each air blowing opening, so as to cool the motor in air; meanwhile, the air flow can also blow into the cooling tank, so that the evaporation of the moisture in the cooling tank is accelerated, and the heat dissipation effect is improved.

Drawings

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

Fig. 1 is a schematic view of a motor cooling system for an electric drive excavator.

Fig. 2 is a schematic view of the overall structure of a motor cooling system of an electric drive type excavator.

FIG. 3 is a cross-sectional view of a motor cooling system for an electric drive excavator.

Reference numerals: 1. a water-cooling frame; 2. a water-cooling assembly; 21. a cooling water tank; 22. a water inlet; 23. a water outlet; 24. a flow regulating valve; 25. a partition plate; 26. an annular water spray pipe; 261. a water jet; 27. an electric control timing opening and closing valve; 28. a cooling tank; 29. a water return tank; 3. an air-cooled assembly; 31. an annular blowpipe; 32. an air blowing port; 33. a blower.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses motor cooling system of electric drive formula excavator. Referring to fig. 1, a motor cooling system of an electric drive excavator comprises a water cooling frame 1, wherein a water cooling assembly 2 and an air cooling assembly 3 are arranged on the water cooling frame 1.

The water cooling component 2 comprises a cooling water tank 21 fixed on the water cooling frame 1, and the cooling water tank 21 is sleeved on the motor. Be provided with water inlet 22 on cooling water tank 21's the diapire, be provided with flow control valve 24 on water inlet 22, cooling water tank 21 top is provided with delivery port 23, and then make water inlet 22 can supply water to cooling water tank 21 through the water source through the external water source of pipeline (like the running water), cold running water passes through cooling water tank 21 and upwards gradually, then by delivery port 23 discharge, thereby make the cooling water can take away the heat that the motor transmission was given cooling water tank 21, thereby prevent that the motor heat is too high. Meanwhile, in order to increase the cooling effect on the motor, a partition plate 25 which ascends spirally is arranged inside the cooling water tank 21, so that water flow ascends spirally to the water outlet 23 after entering from the water inlet 22, the water flow rate is increased, and the cooling effect is improved.

Delivery port 23 has annular spray pipe 26 through the pipe connection, bumps the equidistant water jet 261 that is provided with of water pipe, is provided with a plurality of cooling bath 28 relative with delivery port 23 on the cooling water tank 21 inner wall, and then makes and bump mouth of a river spun rivers and contact with the motor in can entering into cooling bath 28 to make rivers can directly evaporate on motor housing, thereby improve the radiating effect. Meanwhile, an electrically controlled timing on-off valve 27 is arranged on a connecting pipeline between the water outlet 23 and the annular water spraying pipe, so that the effect of spraying water into the cooling tank 28 at regular time is realized, and the effect of regularly spraying water and forcibly cooling is achieved. In order to prevent the cooling water in the cooling tank 28 from directly dropping, a water returning tank 29 is provided below the cooling tank 28 so that the cooling water can flow back into the water returning tank 29 for subsequent recycling.

The air cooling assembly 3 comprises an annular blowpipe 31 arranged below the water cooling box, a plurality of air blowing ports 32 inclined upwards are arranged on the annular blowpipe 31, and the annular blowpipe 31 is connected with an air blower 33 through a pipeline, namely, an air flow is blown into the annular blowpipe 31 through the air blower 33 and then blown out from each air blowing port 32, so that the motor is cooled by air. Meanwhile, the wind flow can be blown into the cooling tank 28, so that the evaporation of the water in the cooling tank 28 is accelerated, and the heat dissipation effect is improved.

The implementation principle of the motor cooling system of the electric drive type excavator in the embodiment of the application is as follows: the water inlet 22 can be externally connected with a water source (such as tap water) through a pipeline, water is supplied to the cooling water tank 21 through the water source, cold tap water gradually goes upwards through the cooling water tank 21 and then is discharged from the water outlet 23, so that the cooling water can take away heat transferred to the cooling water tank 21 by the motor, and the overhigh heat of the motor is prevented; and meanwhile, the cooling effect can be further improved by combining water cooling and air cooling, so that the service life of the motor is ensured.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: equivalent changes in structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an electric drive formula excavator's motor cooling system which characterized in that: comprises a water cooling frame (1), wherein a water cooling component (2) and an air cooling component (3) are arranged on the water cooling frame (1);

the water cooling assembly (2) is established coolant tank (21) on the motor including the cover, be provided with water inlet (22) and delivery port (23) on coolant tank (21), delivery port (23) have water spray heat dissipation spare through the pipe connection.

2. The electric drive excavator motor cooling system of claim 1, wherein: the water spraying and heat dissipating piece comprises an annular water spraying pipe (26), a plurality of water spraying ports (261) are arranged on the annular water spraying pipe (26) at equal intervals, a plurality of cooling grooves (28) are formed in the side wall, attached to the motor, of the cooling water tank (21), and the water spraying ports (261) and the cooling grooves (28) are arranged oppositely.

3. The motor cooling system of an electric drive excavator according to claim 2, wherein: an electric control timing opening and closing valve (27) is arranged on a connecting pipeline between the annular water spraying pipe (26) and the water outlet (23).

4. The motor cooling system of an electric drive excavator according to claim 2, wherein: a water return tank (29) is arranged below the cooling tank (28).

5. The electric drive excavator motor cooling system of claim 1, wherein: and a spirally climbing partition plate (25) is arranged in the cooling water tank (21).

6. The electric drive excavator motor cooling system of claim 1, wherein: the air cooling assembly (3) comprises an annular blowing pipe (31) arranged below the cooling water tank (21), a plurality of air blowing ports (32) inclined upwards are formed in the annular blowing pipe, and the annular blowing pipe (31) is connected with an air blower (33) through a pipeline.