CN219268592U - Shell of oil pump motor, oil pump motor and oil pump - Google Patents

Abstract

The application discloses casing, oil pump motor and oil pump of oil pump motor. The casing of oil pump motor is hollow cylinder, the one end of casing is the casing base, the other end of casing is open mounting hole, first flange and the second flange of circumference arrangement in proper order along the casing axial have on the lateral surface of casing, first flange and second flange all are used for setting up the mounting hole of casing, wherein, first flange is close to the mounting hole and along the setting of the outer edge of mounting hole, have a plurality of lugs that distribute along circumference on the first flange, the central point of every lug puts all is equipped with first kind screw via hole, first kind screw via hole is used for installing oil pump motor's collector ring and rear end cap, wherein, the collector ring is used for fixed oil pump motor's control panel, a plurality of through-holes have on the rear end cap, first kind screw via hole is unanimous with the position and the size of a plurality of through-holes on the rear end cap. The mounting position of the oil pump motor casing provided by the embodiment of the application is reasonable in arrangement, and the oil pump motor casing is simple in overall structure and convenient to produce and manufacture.

Description

Shell of oil pump motor, oil pump motor and oil pump

Technical Field

The application relates to the technical field of motors, in particular to a shell of an oil pump motor and the oil pump motor.

Background

The oil pump is one of important parts on an automobile gear box, and generally comprises an oil pump motor and an oil pump assembly, wherein the oil pump assembly mainly comprises an oil cavity and the like. When the gear box works, the control unit of the automobile controls the oil pump motor to be started, the oil pump motor is started and drives the oil pump to extract hydraulic oil from the oil tank of the gear box, and the needed hydraulic oil is provided for the hydraulic control system of the gear box.

Proper operation of the gearbox requires a tight fit of the oil pump, wherein the oil pump is mounted on the gearbox with most of the structure exposed to the exterior of the gearbox and a small portion below the housing immersed in the oil tank. During the operation of the gear box, the rotation speed of the oil pump motor may reach 1500r/min, so that larger rotation kinetic energy may be generated, and the oil pump installed in the gear box may shake. In addition, the oil pump is installed on the gear box, a part of the oil pump needs to be immersed in an oil tank of the gear box, in order to prevent oil from escaping, the installation joint surface of the oil pump and the gear box needs to be kept sealed, and if the oil pump shakes on the gear box, the tightness between the oil pump and the gear box can be affected. Therefore, in order to improve the stability of the installation of the oil pump on the gear box, it is necessary to propose a new casing of the oil pump motor.

Disclosure of Invention

To the technical problem that exists among the prior art, this application provides casing, oil pump motor, oil pump and the gear box of an oil pump motor for solve at least one technical problem.

The embodiment of the application provides a shell of an oil pump motor, which is characterized in that the shell is a hollow cylinder, one end of the shell is a shell base, the other end of the shell is an open mounting hole, a first flange and a second flange which are circumferentially arranged are arranged at the position, close to the mounting hole, of the outer side surface of the shell, the first flange and the second flange are both used for arranging mounting holes of the shell, wherein the first flange is arranged along the outer edge of the mounting hole, a plurality of lugs which are circumferentially distributed are arranged on the first flange, a first type screw through hole is arranged at the central position of each lug, the first type screw through hole is used for mounting a converging ring and a rear end cover of the oil pump motor, the converging ring is used for fixing a control plate of the oil pump motor, a plurality of through holes are formed in the rear end cover, and when the first type screw through holes are consistent with the positions and the sizes of the plurality of through holes in the rear end cover, the converging ring and the rear end cover are sequentially pressed onto the mounting hole of the shell, and the shell, the converging ring and the rear end cover are fixed together by screws matched with the first type screw through holes; the second flange is spaced from the first flange by a preset distance, a plurality of second type screw through holes are formed in the second flange, the positions of the second type screw through holes are staggered with the positions of the first type screw through holes, the second type screw through holes are used for mounting the oil pump motor to the gear box, and when the oil pump motor is mounted, the shell is fixed in the shell of the gear box through screws matched with the second type screw through holes.

Optionally, an annular boss is arranged below the second flange, the annular boss is connected with the second flange, the annular boss is an annular mounting surface when the casing is mounted in the gear box casing, and the annular mounting surface is sealed after the casing is mounted.

Optionally, the outer diameter of the annular boss is 60-60.2mm, the stator assembly of the oil pump motor is installed in the shell in a hot jacket mode, and after the hot jacket is completed, the outer diameter of the annular boss is smaller than or equal to 60.25mm, so that the annular installation surface is kept sealed after installation.

Optionally, a positioning pin hole is arranged on the second flange, a central axis of the positioning pin hole is parallel to a central axis of the second type screw through hole, and the central axis of the positioning pin hole is parallel to a central axis of the annular boss.

Optionally, the central axis of the positioning pin hole coincides with the central axis of the second type screw via hole, and the aperture of the positioning pin hole is larger than the aperture of the second type screw via hole.

Optionally, the number of the first type screw through holes is four, and the four first type screw through holes are unevenly distributed on the first flange along the circumferential direction; the number of the second screw through holes is four, and the four second type screw through holes are unevenly distributed on the second flange along the circumferential direction.

Optionally, central angles formed by two adjacent screw through holes in the four first-type screw through holes are sequentially as follows: 66-76 degrees, 78-88 degrees, 104-124 degrees and 92-82 degrees.

Optionally, central angles formed by two adjacent screw through holes in the four second-type screw through holes are sequentially as follows: 81-84 degrees, 113-115 degrees, 75-80 degrees and 85-90 degrees.

The embodiment of the application also provides an oil pump motor, and the shell of the oil pump motor adopts the shell.

The embodiment of the application further provides an oil pump, and the driving motor of the oil pump is the oil pump motor.

The first flange is arranged on the shell to firmly fix the shell on the shell of the gear box, in addition, the second type screw through holes are used as connecting structures connected with the rear end cover, and the first type screw through holes are arranged in a staggered mode, so that interference during assembly of the first type screw through holes and the second type screw through holes respectively corresponding to the first type screw through holes can be avoided, and assembly efficiency is improved.

Drawings

Preferred embodiments of the present application will be described in further detail below with reference to the attached drawing figures, wherein:

fig. 1 is a schematic perspective view of an oil pump motor housing according to an embodiment of the present disclosure;

FIG. 2 is an A-direction view of the structure of FIG. 1;

fig. 3 is a side cross-sectional view of an oil pump motor according to an embodiment of the present application.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the following detailed description, reference is made to the accompanying drawings, which form a part hereof, and in which is shown by way of illustration specific embodiments in which the application may be practiced. In the drawings, like reference numerals describe substantially similar components throughout the different views. Various specific embodiments of the present application are described in sufficient detail below to enable those skilled in the art to practice the teachings of the present application. It is to be understood that other embodiments may be utilized or structural, logical, or electrical changes may be made to the embodiments of the present application.

Fig. 1 is a schematic perspective view of an oil pump motor housing according to an embodiment of the present application. Fig. 2 is an a-direction view of the structure of fig. 1. As shown in fig. 1 and 2, the casing 100 of the oil pump motor is a cylinder, one end of the casing 100 is a casing base 101, the other end is an open mounting port 102, the mounting port 102 is used for press-fitting a stator assembly (not shown in the drawing) and a rotor assembly (not shown in the drawing) into an inner cavity 103 of the casing 100 of the oil pump motor, an outer side 110 of the casing of the oil pump motor is provided with a first flange 104 and a second flange 107, the first flange 104 is arranged along an outer edge 112 of the mounting port 102, the outer side of the first flange 104 is provided with a plurality of lugs 105 distributed along the circumferential direction, a first type screw through hole 106 is arranged at the center position of each lug 105, and the first type screw through hole 106 is used for being matched with a through hole on a rear end cover (not shown in the drawing) of the oil pump motor to fix the casing 100 of the oil pump motor with the rear end cover and a confluence ring (not shown in the drawing) arranged between the rear end cover and the casing 100 of the oil pump motor. The rear end cover is provided with a plurality of through holes, the positions and the sizes of the first type screw through holes are consistent with those of the through holes on the rear end cover, and when the rear end cover is installed, the rear end cover and the rear end cover are pressed onto the installation opening of the shell in sequence, and the shell, the rear end cover and the rear end cover are fixed together through bolts matched with the first type screw through holes.

The second flange 107 is disposed below the first flange 104 with a predetermined distance therebetween. The second flange 107 is in an irregular pattern, wherein an arc angle 109 is formed after two adjacent sides of the second flange 107 intersect, a second type screw through hole 108 is arranged at a circle center corresponding to the arc angle 109, and when a part below the second flange 107 on the casing 100 of the oil pump motor is installed in a casing of a gear box (not shown in the figure), the second type screw through hole 108 is used for fixing the casing 100 of the oil pump motor on the casing of the gear box. In some embodiments of the present application, optionally, for positioning during installation, one screw via 203 of the second type of screw via is processed into a positioning pin hole during assembly of the casing, the screw via 203 as the positioning pin hole includes a threaded hole and a positioning pin hole, which are coaxial, and the aperture of the positioning pin hole is larger than the aperture of the threaded hole. The sum of the depth of the threaded hole along the axial direction of the screw through hole and the depth of the positioning pin hole along the axial direction of the screw through hole is the thickness of the second flange. Thus, when the shell of the oil pump motor is installed into the gear box, the part below the second flange is used as a locating pin to be inserted into a corresponding installation hole of the gear box, the screw through hole 203 is used as another locating pin hole to be matched with a corresponding threaded hole on the gear box, two installation locating holes are formed, the whole machine is aligned, concentricity of an output shaft of the oil pump motor and an installation hole of the gear box after installation is ensured, and the working stability of the motor is further improved.

With continued reference to fig. 2, the number of the first type screw through holes 106 and the number of the second type screw through holes 108 are equal, and are four, and the first type screw through holes 106 and the second type screw through holes 108 at corresponding positions are arranged in a staggered manner, so that when the casing is assembled to the gear box, the positions of the first type screw through holes do not affect the installation of bolts in the second type screw through holes. In some embodiments of the present application, optionally, the distance between the center of the first type of screw via hole and the center of the second type of screw via hole in the horizontal direction is generally greater than 59mm, and it needs to be noted that, since the first type of screw via hole and the second type of screw via hole are not on a plane, the avoiding distance between the first type of screw via hole and the second type of screw via hole can also be limited by other parameters, such as the distance along the axial direction of the casing, for which, the limiting of the avoiding distance between the first type of screw via hole and the second type of screw via hole does not make other requirements, but only can ensure that the first type of screw via hole and the second type of screw via hole do not interfere with each other during assembly, and are within the protection scope of the present application.

Further, the positions of the four first type screw through holes are respectively: the central angles of the first type screw 1061 via and the second first type screw via 1062 are: 66-76 degrees, preferably, the central angle between the first type screw via hole and the second first type screw via hole is 71 degrees; the central angles of the second first-type screw through holes 1062 and the third first-type screw through holes 1063 are 78-88 degrees, and preferably, the central angles of the second first-type screw through holes 1062 and the third first-type screw through holes 1063 are 83 degrees; the central angles of the third first-type screw via 1063 and the fourth first-type screw via 1064 are: 104-124 °, preferably, the central angles of the third first-type screw via 1063 and the fourth first-type screw via 1064 are 109 °; the central angle between the fourth first-type screw via 1064 and the first-type screw via 1061 is 92 ° to 82 °, preferably, the central angle between the fourth first-type screw via 1064 and the first-type screw via 1061 is 97 °, where the first center is a point formed by intersecting the plane defined by the four first-type screw vias with the central axis of the oil pump motor housing.

In some embodiments of the present application, optionally, the positions of the four second type screw vias are respectively: the central angles of the first second-type screw via 1081 and the second-type screw via 1082 are: 81-84 °, preferably 82.7 °; the central angles of the second-type screw through holes 1082 and the third second-type screw through holes 1083 are 113-115 degrees, and the preferable value is 114.3 degrees; the central angles of the third second-type screw via 1083 and the fourth second-type screw via 1084 are: 75-80 °, preferably 77.8 °; the central angle between the fourth second-type screw via 1084 and the first second-type screw via 1081 is 85-90 degrees, preferably 85.2 degrees, wherein the second center is a point formed by intersecting the planes determined by the four second-type screw vias with the central axis of the oil pump motor casing.

With continued reference to fig. 1, an annular boss 202 is disposed below the second flange 107 on the outer side 110 of the casing 100, the annular boss 202 is connected with the second flange 107, the annular boss 202 is a sealing surface when the oil pump motor casing is installed in the gearbox casing, a sealing ring is disposed between the inner side of the gearbox casing and the annular boss, the casing from the sealing ring to the casing base is disposed in oil, and the sealing ring can prevent the oil from escaping when the gearbox works. When the oil pump motor is assembled to the housing of the gearbox, the annular boss 202 cooperates with the screw via 203 to locate the assembly of the oil pump motor and the gearbox. In some embodiments of the present application, optionally, the outer diameter of the annular boss is 60.2mm, after the stator assembly is thermally sleeved in the inner cavity 103 of the casing, the outer diameter of the annular boss 202 becomes 60.25mm, that is, after the stator assembly is thermally sleeved in the inner cavity 103 of the casing of the oil pump motor, the outer diameter of the annular boss changes by no more than 0.05mm, so that the tightness between the annular boss and the gear box can be ensured, and the tightness of the sealing ring is prevented from being influenced by the change of the annular boss after the thermal sleeve.

The first flange, the second flange and the first type screw through holes and the second type screw through holes arranged on the first flange are arranged on the shell, the shell is firmly fixed on the shell of the gear box, in addition, the positions of the first type screw through holes and the second type screw through holes are staggered, so that interference can be avoided when the first type screw through holes and the second type screw through holes are assembled with corresponding structures respectively, and the assembly efficiency is improved.

Fig. 3 is a side cross-sectional view of an oil pump motor according to an embodiment of the present application. As shown in fig. 3, the oil pump motor 300 at least comprises a stator assembly 301, a rear end cover 302 and a bus ring 303, and further comprises a casing 100 of the oil pump motor, wherein the stator assembly 301 is fixed on the inner side surface of the casing 100 of the oil pump motor in a hot-set process mode, the bus ring 303 is used for fixing a control board 304 of the oil pump motor, the rear end cover 302 is provided with a plurality of through holes 305, the positions and the sizes of the first type screw through holes 106 and the plurality of through holes 305 on the rear end cover are consistent, and when the oil pump motor is installed, the bus ring 303 and the rear end cover 302 are sequentially pressed onto an installation port 102 of the casing 100, and the casing 303 and the rear end cover 302 are fixed together by bolts 306 matched with the first type screw through holes 106.

The embodiment of the application also provides an oil pump which at least comprises the oil pump motor. The output end of the oil pump motor is connected with a driving wheel in the oil pump and is used for pumping oil in the oil tank into the gear box.

The embodiment of the application also provides a gear box, which at least comprises the oil pump, wherein the oil pump in the gear box is arranged on a shell of the gear box and is used for pumping oil into the gear box.

In summary, the casing that this application embodiment provided is through setting up first flange, second flange and setting up first class screw via hole and the second class screw via hole on first flange on with the casing of casing firmly fixed on the gear box above that, in addition, through setting up the pinhole in at least one second class screw via hole for this pinhole can be as location structure with the part below the casing second flange together, like this, when oil pump motor loads into the gear box, can align oil pump motor and gear box with these location structures, guarantees the concentricity of oil pump motor output shaft and gear box installing port after the installation, further improves the stability of motor work.

The above embodiments are provided for illustrating the present application and are not intended to limit the present application, and various changes and modifications can be made by one skilled in the relevant art without departing from the scope of the present application, therefore, all equivalent technical solutions shall fall within the scope of the present disclosure.

Claims (10)

1. The shell of the oil pump motor is characterized in that the shell is a hollow cylinder, one end of the shell is a shell base, the other end of the shell is an open mounting port, a first flange and a second flange which are circumferentially arranged along the axial direction of the shell are arranged on the outer side surface of the shell in sequence, the first flange and the second flange are both used for setting a mounting hole of the shell,

the first flange is close to the mounting opening and is arranged along the outer edge of the mounting opening, a plurality of lugs distributed along the circumferential direction are arranged on the first flange, first type screw through holes are formed in the center of each lug, the first type screw through holes are used for mounting a bus ring and a rear end cover of an oil pump motor, the bus ring is used for fixing a control plate of the oil pump motor, a plurality of through holes are formed in the rear end cover, the positions and the sizes of the first type screw through holes are consistent with those of the plurality of through holes in the rear end cover, and when the rear end cover is mounted, the bus ring and the rear end cover are sequentially pressed onto the mounting opening of the shell, and the shell, the bus ring and the rear end cover are fixed together through bolts matched with the first type screw through holes;

the second flange is spaced from the first flange by a preset distance, a plurality of second type screw through holes are formed in the second flange, the positions of the second type screw through holes and the positions of the first type screw through holes are arranged in a staggered mode in the circumferential direction, the second type screw through holes are used for mounting the oil pump motor to the gear box, and when the oil pump motor is mounted, the shell is fixed in the shell of the gear box through screws matched with the second type screw through holes.

2. The housing of claim 1, wherein an annular boss is disposed below the second flange on a side of the housing, the annular boss being connected to the second flange, the annular boss being an annular mounting surface when the housing is installed in a gearbox housing, the annular mounting surface being sealed with the gearbox after installation.

3. The housing of claim 2, wherein the annular boss has an outer diameter of 60-60.2mm, the stator assembly of the oil pump motor is shrink-fit into the housing, and the annular boss has an outer diameter of less than or equal to 60.25mm after shrink-fit is completed, such that the annular mounting surface remains sealed after installation.

4. The housing of claim 2, wherein a locating pin hole is provided in the second flange, a central axis of the locating pin hole is parallel to a central axis of the second type screw via, and a central axis of the locating pin hole is parallel to a central axis of the annular boss.

5. The housing of claim 4, wherein a central axis of the registration pin hole coincides with a central axis of the second type screw via, and wherein a pore size of the registration pin hole is larger than a pore size of the second type screw via.

6. The housing of claim 1, wherein the number of first-type screw vias is four, the four first-type screw vias being unevenly circumferentially distributed on the first flange; the number of the second type screw through holes is four, and the four second type screw through holes are unevenly distributed on the second flange along the circumferential direction.

7. The housing of claim 6, wherein the central angles formed by two adjacent screw vias in the four first type screw vias are in sequence: 66-76 degrees, 78-88 degrees, 104-124 degrees and 92-82 degrees.

8. The housing of claim 6, wherein the central angles formed by two adjacent screw vias in the four second type screw vias are in sequence: 81-84 degrees, 113-115 degrees, 75-80 degrees and 85-90 degrees.

9. An oil pump motor, characterized in that the casing of the oil pump motor employs the casing according to any one of claims 1-8.

10. An oil pump, characterized in that the driving motor of the oil pump is the oil pump motor of claim 9.

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