Driving motor structure used for non-road vehicle

Abstract

A driving motor structure used for a non-road vehicle relates to the technical field of motor equipment, only a sealing cover needs to be opened when a sensor is overhauled, the overhauling is convenient, a rear end cover does not need to be integrally opened, and then the sealing performance is prevented from being influenced during overhauling; comprising a casing, two ends of the casing are respectively provided with a front end cover and a rear end cover, the casing is internally provided with a rotor assembly and a stator assembly, one side, far away from the casing, of the rear end cover is provided with a mounting hole, and the mounting hole is used for mounting a sensor; and a sealing cover is arranged at the end part of one side, far away from the shell, of the rear end cover.

Description

Technical Field

[0001] This utility model relates to the field of motor equipment technology, specifically to a drive motor structure for use in off-road vehicles. Background Technology

[0002] A drive motor is an electromagnetic device that converts or transmits electrical energy based on the law of electromagnetic induction. Its main structure includes a stator, rotor, bearings, end covers, frame, commutator (for DC motors), brushes (for DC motors), and sensors.

[0003] Non-road vehicles typically refer to construction machinery, agricultural machinery, forklifts, mining trucks, etc. The drive motors are exposed to dust, mud, and humid environments, which can cause problems such as corrosion to the internal circuit structure of the motor. Therefore, it is necessary to improve the protection level of the motor.

[0004] In actual use, the sensor is usually installed inside the end cover of the drive motor. During maintenance, the end cover needs to be disassembled, which is a complicated process. Furthermore, disassembling and resealing the end cover can easily lead to poor sealing and affect the service life of the drive motor. Utility Model Content

[0005] I. Technical problems to be solved

[0006] This utility model addresses the shortcomings of existing technologies by proposing a drive motor structure for off-road vehicles. When inspecting the sensor, only the sealing cover needs to be opened, making inspection convenient and eliminating the need to open the entire rear cover, thus avoiding affecting the sealing performance during inspection.

[0007] II. Specific Technical Solutions

[0008] A drive motor structure for off-road vehicles includes a housing, with a front cover and a rear cover at both ends of the housing. A rotor assembly and a stator assembly are respectively disposed inside the housing. A mounting hole is provided on the side of the rear cover away from the housing for sensor mounting. A sealing cover is provided at the end of the rear cover away from the housing.

[0009] Implementation principle and working principle:

[0010] In this solution, the sensor is installed on the side of the rear cover away from the housing, and the mounting hole on the rear cover is sealed by a sealing cover. The sealing cover can complete the sealing of the rear cover. When maintenance is required, only the sealing cover needs to be removed. After the sensor is assembled, the sealing cover and the rear cover form a double seal, which can still ensure the sealing performance. Unlike the existing technology, it is not necessary to remove the entire rear cover, which can avoid the problem of poor sealing caused by the disassembly and reassembly of the rear cover. At the same time, different sensors can be installed in the mounting hole. Multiple sensors can be matched while meeting the sealing requirements, and the compatibility is high.

[0011] Preferably, the mounting hole has a wiring hole on its wall, and a first sealing connector is installed in the wiring hole. The sensor's connection wire passes through the wiring hole via the first sealing connector. The advantage of this preferred embodiment is that the first sealing connector and the wiring hole effectively ensure the sealing performance of the sensor after installation.

[0012] Preferably, a sealing gasket is provided between the sealing cover and the housing; the advantage of this preferred embodiment is that the sealing gasket can effectively ensure the sealing performance between the sealing cover and the housing.

[0013] Preferably, a wire-changing base is provided on one side of the housing, and a second sealing joint is provided on the housing wall. The installation wire of the wire-changing base is connected to the housing through the second sealing joint. The advantage of this preferred embodiment is that by providing the wire-changing base and the second sealing joint, the airtightness of the housing can be ensured, while also ensuring the smooth wiring of the motor.

[0014] Preferably, a mounting bracket is provided on the other side of the housing, with the two ends of the mounting bracket connected to the front cover and the rear cover respectively. The advantage of this preferred option is that the mounting bracket facilitates the overall installation of the drive motor, and the two ends are located on the front cover and the rear cover respectively, resulting in a wider and larger installation area.

[0015] Preferably, the connection between the front cover and the housing is provided with an oil seal and an O-ring; the connection between the rear cover and the housing is provided with a stop, sealant, and an O-ring. The beneficial effect of this preferred embodiment is that, through this structure, the protection level and sealing level are effectively improved, and problems such as short circuits or corrosion caused by dust, mud, and moisture inside the motor are effectively solved.

[0016] The beneficial effects of this utility model are as follows:

[0017] 1. This solution facilitates sensor installation by opening mounting holes on the side of the rear cover away from the housing, and is applicable to different sensors, making it highly versatile. At the same time, during maintenance, there is no need to open the rear cover, which avoids the problem of poor sealing caused by disassembling and reassembling the rear cover. Moreover, the sensor replacement maintenance using this structure is simple and convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the drive motor structure for non-road vehicles according to this utility model.

[0019] Figure 2 for Figure 1 A mirror image of the structure of the middle and rear end cover 3.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Housing; 2. Front cover; 3. Rear cover; 4. Rotor assembly; 5. Stator assembly; 6. Mounting hole; 7. Sensor; 8. Sealing cover; 9. Connecting wire; 10. First sealing joint; 11. Sealing gasket; 12. Cable changer; 13. Second sealing joint; 14. Mounting wire; 15. Mounting bracket. Detailed Implementation

[0022] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings, so that the advantages and features of this utility model can be more easily understood by those skilled in the art, thereby providing a clearer and more definite definition of the scope of protection of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0023] like Figure 1-2 As shown:

[0024] A drive motor structure for off-road vehicles includes a housing 1, with a front cover 2 and a rear cover 3 at both ends of the housing 1. Specifically, the front cover 2 is fixed to the left side of the housing 1 by bolts, and to ensure the sealing between the front cover 2 and the housing 1, an oil seal and an O-ring are provided at the connection between the front cover 2 and the housing 1. In addition, to ensure the sealing between the rear cover 3 and the housing 1, a stop is provided at the connection between the rear cover 3 and the housing 1, and an O-ring and sealant are provided in the stop.

[0025] In implementation, a rotor assembly 4 and a stator assembly 5 are respectively installed inside the housing 1. The installation of the rotor assembly 4 and the stator assembly 5 is common knowledge to those skilled in the art and will not be described in detail here. The right side of the rear end cover 3 is integrally formed with a mounting hole. A sensor 7 is installed in the mounting hole 6, specifically by bolts or screws. The sensor 7 can be a Hall sensor, which is suitable for driving motors. A sealing cover 8 is provided at the end of the rear end cover 3 away from the housing 1. The sealing cover 8 is fixed by bolts and is used to seal the mounting hole 6 to ensure airtightness. A sealing gasket 11 is also provided between the sealing cover 8 and the housing 1 to further ensure the airtightness of the drive motor.

[0026] In practice, to facilitate the installation of sensor 7, a wiring hole is provided on the wall of mounting hole 6, and a first sealing connector 10 is installed at the wiring hole. The sensor 7 is first connected through the first sealing connector 10 through mounting hole 6 or wiring hole. Specifically, a wire changer 12 is fixed on one side of housing 1 by bolts. A wiring hole is provided on the wall of housing 1, and a second sealing connector 13 is provided in the wiring hole. The installation wire of wire changer 12 is introduced into housing 1 and connected to stator through the second sealing connector 13 to facilitate power input.

[0027] In the specific implementation of this solution, the sensor 7 is first installed on the side of the rear end cover 3 away from the housing 1, and the mounting hole 6 on the rear end cover 3 is sealed by the sealing cover 8. The sealing cover 8 can seal the rear end cover 3. When maintenance is required, only the sealing cover 8 needs to be removed. After reassembly, the sealing cover 8 and the rear end cover 3 form a double seal to ensure airtightness. Unlike existing technologies, it is not necessary to disassemble the entire rear end cover 3, which can avoid airtightness problems caused by disassembling and reassembling the rear end cover 3. At the same time, different sensors 7 can be installed in the mounting hole 6. Multiple sensors can be matched while meeting the airtightness requirements, resulting in high compatibility.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims.

Claims

1. A drive motor structure for use in off-road vehicles, comprising a housing (1), wherein a front end cover (2) and a rear end cover (3) are respectively provided at both ends of the housing (1), and a rotor assembly (4) and a stator assembly (5) are respectively provided inside the housing (1), characterized in that: The rear end cover (3) has a mounting hole (6) on the side away from the housing (1), and the mounting hole (6) is used for mounting the sensor (7); the rear end cover (3) has a sealing cover (8) on the end away from the housing (1).

2. The drive motor structure for off-road vehicles according to claim 1, characterized in that: The mounting hole (6) has a wiring hole on its wall. A first sealing connector (10) is installed in the wiring hole. The sensor (7) also includes a connecting wire (9), which passes through the wiring hole via the first sealing connector (10).

3. The drive motor structure for off-road vehicles according to claim 1, characterized in that: A sealing gasket (11) is provided between the sealing cover (8) and the housing (1).

4. The drive motor structure for off-road vehicles according to claim 1, characterized in that: A cable changer (12) is provided on one side of the housing (1), and a second sealing joint (13) is provided on the outer wall of the housing (1). The installation line (14) of the cable changer (12) is connected to the housing (1) through the second sealing joint (13).

5. The drive motor structure for off-road vehicles according to claim 1, characterized in that: On the other side of the housing (1), there is also a mounting bracket (15), and the two ends of the mounting bracket (15) are connected to the front cover (2) and the rear cover (3) respectively.

6. The drive motor structure for off-road vehicles according to claim 1, characterized in that: The connection between the front cover (2) and the housing (1) is provided with an oil seal and an O-ring; the connection between the rear cover (3) and the housing (1) is provided with a stop, sealant and an O-ring.

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