Liquid-cooled motor with motor and pump connected

Abstract

The utility model discloses a liquid-cooled motor with a motor connected with a pump, which relates to the field of motor cooling and comprises a base, a motor shaft, a switching small shaft and an oil pump, a rear end cover is mounted at the rear end of the base, and the rear end of the motor shaft penetrates into an inner hole of the rear end cover and is fixedly connected with the switching small shaft. The other end of the adapter small shaft is connected with a pump shaft driving an oil pump through a coupler, and the oil pump is installed on the rear end cover through an adapter flange. The motor and the oil pump are connected through the small adapter shaft, the adapter flange, the coupler, the bolts and other parts, the overflow valve is additionally arranged on the oil pump, the flow entering the motor shell is controlled through the overflow valve, and the cooling effect of the motor is ensured.

Description

Technical Field

[0001] The utility model relates to the field of motor cooling, in particular to a liquid-cooled motor connected to a pump. Background Art

[0002] Current liquid-cooled motor cooling methods require an external motor-driven oil pump to circulate coolant within the motor housing, thereby reducing the motor's operating temperature. This structural solution also requires a separate motor for the oil pump, connected using a center bracket and coupling. This approach consumes a large amount of space, reduces the unit's space utilization, and is costly. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and to provide a liquid-cooled motor connected to a pump, wherein the motor and the oil pump are connected by components such as an adapter shaft, an adapter flange, a coupling and bolts.

[0004] The purpose of the utility model is achieved through the following technical solution: this liquid-cooled motor connected to the motor and the pump includes a base, a motor shaft, a switching shaft and an oil pump. The rear end of the base is installed with a rear end cover, the rear end of the motor shaft penetrates the inner hole of the rear end cover and is fixedly connected to the switching shaft. The other end of the switching shaft is connected to the pump shaft of the oil pump through a coupling, and the oil pump is installed on the rear end cover through an switching flange.

[0005] As a further technical solution, the adapter flange includes a flange plate, an end cover mating portion arranged on one side of the flange plate, and an oil pump mating portion arranged on the other side of the flange plate. The end cover mating portion extends into the inner hole, and a positioning groove is provided on the surface of the rear end cover so that the flange plate is embedded in the positioning groove and fixed, and the oil pump is fixedly connected to the oil pump mating portion.

[0006] As a further technical solution, the rear end of the motor shaft is supported in the inner hole of the rear end cover by a bearing, and a spring washer is installed between the bearing and the mating portion of the end cover.

[0007] As a further technical solution, a liquid inlet and a liquid outlet connected to the inner cavity of the motor are provided on the machine base, and a liquid delivery port and a liquid return port are provided on the oil pump. The liquid delivery port is connected to the liquid inlet through a pipeline, and coolant is introduced into the inner cavity of the motor. The liquid outlet is connected to the coolant tank through a pipeline. After the coolant is cooled by the cooling equipment, it is connected to the liquid return port through the pipeline to form a coolant circulation.

[0008] As a further technical solution, an overflow valve is installed on the oil pump to quantitatively control the flow of coolant entering the motor cavity to make the coolant flow constant.

[0009] The beneficial effects of the utility model are:

[0010] 1. The motor is combined with the oil pump, and the motor shaft directly drives the oil pump shaft, eliminating one oil pump drive motor. The overall structure is more compact and effectively reduces costs.

[0011] 2. It saves the installation space of the oil pump drive motor, making the space utilization rate of the unit higher;

[0012] 3. Install an overflow valve on the oil pump to quantitatively control the flow of coolant entering the motor cavity to keep the coolant flow constant. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the present utility model.

[0014] Figure 2 for Figure 1 A partial enlarged schematic diagram of area A in the middle.

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the utility model.

[0016] Figure 4 It is a schematic diagram of the assembly structure of the rear end cover and the adapter flange in the utility model.

[0017] Explanation of the accompanying reference numerals: machine base 1, liquid inlet 11, liquid outlet 12, rear end cover 2, inner hole 21, positioning groove 22, adapter flange 3, flange plate 31, end cover matching part 32, oil pump matching part 33, bearing 4, motor shaft 5, adapter small shaft 6, coupling 7, oil pump 8, liquid delivery port 81, liquid return port 82, pump shaft 9, spring washer 10. DETAILED DESCRIPTION

[0018] The following is a detailed introduction to the present invention with reference to the accompanying drawings:

[0019] Example: As shown in the attached Figures 1 to 4 As shown, this liquid-cooled motor connected to the pump includes a base 1, a liquid inlet 11, a liquid outlet 12, a rear end cover 2, an inner hole 21, a positioning groove 22, an adapter flange 3, a flange plate 31, an end cover mating part 32, an oil pump mating part 33, a bearing 4, a motor shaft 5, an adapter shaft 6, a coupling 7, an oil pump 8, a liquid delivery port 81, a liquid return port 82, a pump shaft 9 and a spring washer 10.

[0020] Reference Attachment Figure 1 、 2 The rear end cover 2 is installed at the rear end of the machine base 1, the rear end of the motor shaft 5 is inserted into the inner hole 21 of the rear end cover 2, and a small adapter shaft 6 is fixedly connected to the motor shaft 5 by bolts. The other end of the small adapter shaft 6 is connected to the pump shaft 9 of the oil pump 8 through a coupling 7. The oil pump 8 is installed on the rear end cover 2 through the adapter flange 3.

[0021] like Figure 3 、4 As shown, further, the adapter flange 3 includes a flange plate 31, an end cover mating portion 32 arranged on the left side of the flange plate 31, and an oil pump mating portion 33 arranged on the right side of the flange plate 31. The end cover mating portion 32 extends into the inner hole 21 of the rear end cover 2. An annular positioning groove 22 is opened on the surface of the rear end cover 2, so that the flange plate 31 is embedded in the positioning groove 22 and fixed. The oil pump 8 is fixedly connected to the oil pump mating portion 33 by bolts.

[0022] Preferably, the rear end of the motor shaft 5 is supported by a bearing 4 in the inner hole 21 of the rear end cover 2, with a spring washer 10 installed between the bearing 4 and the end cover mating portion 32. Furthermore, a relief valve is installed on the oil pump 8 to quantitatively control the flow of coolant entering the motor cavity, ensuring a constant coolant flow rate.

[0023] Reference Attachment Figure 3 A liquid inlet 11 and a liquid outlet 12 are provided on the top of the base 1, communicating with the inner cavity of the motor. A liquid delivery port 81 and a liquid return port 82 are provided on the oil pump 8. The liquid delivery port 81 is connected to the liquid inlet 11 via a pipeline, allowing coolant to flow into the inner cavity of the motor. The liquid outlet 12 is connected to a coolant tank via a pipeline. A cooling device is provided in the coolant tank. After the coolant is cooled by the cooling device, it is connected to the liquid return port 82 via a pipeline, forming a coolant circulation.

[0024] The working process of this utility model:

[0025] During operation, the motor shaft 5 drives the rotating small shaft 6, and the rotating small shaft 6 drives the pump shaft 9 to rotate through the coupling 7, so that the oil pump 8 starts to work, and the coolant is sucked into the oil pump 8 from the return liquid port 82 and sent out from the liquid delivery port 81, entering the liquid inlet 11 on the machine base 1 to cool the inner cavity of the motor. Then the coolant is discharged from the liquid outlet 12 on the machine base 1, flows to the coolant tank through the pipeline, and is cooled by the cooling equipment. Then, it is sent back to the return liquid port 82 of the oil pump 8 through the pipeline.

[0026] A relief valve is installed on oil pump 8 to control the flow rate into the motor housing, ensuring effective motor cooling. The relief valve threshold is set based on the cooling capacity at the motor's lowest speed. When the motor speed reaches a certain level, the pressure generated by the oil pump exceeds the relief valve threshold, causing excess coolant to flow directly into the coolant tank.

[0027] It is understandable that for those skilled in the art, any equivalent replacement or change of the technical solution and the concept of the utility model should fall within the scope of protection of the claims attached to the utility model.

Claims

1. A liquid-cooled motor connected to a pump, characterized in that: The invention comprises a machine base (1), a motor shaft (5), a transfer shaft (6) and an oil pump (8); a rear end cover (2) is installed at the rear end of the machine base (1); the rear end of the motor shaft (5) penetrates the inner hole (21) of the rear end cover (2) and is fixedly connected to the transfer shaft (6); the other end of the transfer shaft (6) is connected to a pump shaft (9) of the oil pump (8) through a coupling (7); and the oil pump (8) is installed on the rear end cover (2) through a transfer flange (3).

2. The liquid-cooled motor connected to a pump according to claim 1, characterized in that: The adapter flange (3) comprises a flange (31), an end cover matching portion (32) arranged on one side of the flange (31), and an oil pump matching portion (33) arranged on the other side of the flange (31). The end cover matching portion (32) extends into the inner hole (21). A positioning groove (22) is provided on the surface of the rear end cover (2), so that the flange (31) is embedded in the positioning groove (22) and fixed. The oil pump (8) is fixedly connected to the oil pump matching portion (33).

3. The liquid-cooled motor connected to a pump according to claim 2, characterized in that: The rear end of the motor shaft (5) is supported in the inner hole (21) of the rear end cover (2) through a bearing (4), and a spring washer (10) is installed between the bearing (4) and the end cover matching portion (32).

4. The liquid-cooled motor connected to a pump according to claim 1, characterized in that: The base (1) is provided with a liquid inlet (11) and a liquid outlet (12) which are in communication with the inner cavity of the motor; the oil pump (8) is provided with a liquid delivery port (81) and a liquid return port (82); the liquid delivery port (81) is connected to the liquid inlet (11) through a pipeline, and coolant is introduced into the inner cavity of the motor; the liquid outlet (12) is connected to a coolant tank through a pipeline, and after the coolant is cooled by a cooling device, it is connected to the liquid return port (82) through a pipeline, thereby forming a coolant circulation.

5. The liquid-cooled motor connected to a pump according to claim 1, characterized in that: The oil pump (8) is provided with an overflow valve for quantitatively controlling the flow of the coolant entering the inner cavity of the motor.

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