Sealed oil pump motor

Abstract

The utility model discloses a sealing type oil pump motor which comprises an upper end cover, a shell sleeve and a lower end cover, one end of the shell sleeve is connected with the upper end cover in a clamping mode, the lower end cover is connected with the other end of the shell sleeve in a clamping mode, the upper end cover and the lower end cover are detachably connected through a fastener, and the sealing type oil pump motor further comprises a rotor assembly and a stator component. The stator component is fixedly arranged between the upper end cover and the lower end cover, the rotor assembly is rotationally arranged between the upper end cover and the lower end cover, the rotor assembly is sleeved with the stator assembly, and the other end of the rotor assembly penetrates out of the upper end cover and is in transmission connection with an oil pump. The utility model belongs to the technical field of oil pump motors, and particularly relates to a sealed oil pump motor which solves the problems that an existing oil pump motor is complex in structure, high in cost, large in size and complex in installation.

Description

TECHNICAL FIELD

[0001] The utility model belongs to oil pump motor technical field especially relates to a sealed oil pump motor. BACKGROUND

[0002] The oil pump motor includes a motor main body, a front end cover and an output transmission shaft, and is mainly used for providing power for normal work of an oil pump. When the oil pump works, the oil pump motor drives a driving wheel in the oil pump to rotate, the driving wheel drives a driven wheel to rotate, and oil is pumped out by using the change of oil volume between the driving wheel and the driven wheel during rotation. Some existing oil pump motors are capacitor motors. The internal structure of the capacitor motor is complex, and the capacitor motor also has high cost. In addition, the capacitor motor generally has a large size and is complex to install. SUMMARY

[0003] The utility model solves the technical problem that some existing oil pump motors adopt capacitor motors, the internal structure of the capacitor motor is complex, the capacitor motor also has high cost, and the capacitor motor generally has a large size and is complex to install.

[0004] To solve the above technical problems, the utility model adopts the following technical scheme: a sealed oil pump motor, comprising an upper end cover, an outer shell sleeve and a lower end cover, one end of the outer shell sleeve is clamped with the upper end cover, the lower end cover is clamped with the other end of the outer shell sleeve, the upper end cover and the lower end cover are detachably connected through fasteners, further comprising a rotor assembly and a stator assembly, the stator assembly is fixedly arranged between the upper end cover and the lower end cover, the rotor assembly is rotatably arranged between the upper end cover and the lower end cover, the rotor assembly is sleeved in the stator assembly, and the other end of the rotor assembly penetrates out of the upper end cover and is connected with an oil pump in transmission.

[0005] Further, the rotor assembly comprises a rotating shaft and a magnetic ring, the rotating shaft is rotatably arranged between the upper end cover and the lower end cover, the magnetic ring is fixedly sleeved on the outer periphery of the rotating shaft, the magnetic ring is fixedly arranged in the stator assembly, one end of the rotating shaft penetrates out of the upper end cover and is connected with the oil pump in transmission, and the magnetic ring is in interference fit with the rotating shaft.

[0006] Further, the upper end cover is provided with a mounting protrusion one, the lower end cover is provided with a mounting protrusion two, the mounting protrusion one and the mounting protrusion two are oppositely arranged, mounting grooves are formed in the mounting protrusion one and the mounting protrusion two, rolling members are fixedly arranged in the mounting grooves, respectively, the rotating shaft is rotatably inserted into the rolling members in the two mounting grooves, respectively, two locking members are rotatably sleeved on the rotating shaft, and the two locking members fix the two rolling members on the upper end cover and the lower end cover, respectively.

[0007] Further, the stator assembly comprises a stator core and a stator winding, the stator core is provided with a locking groove, the fastener passes through the locking groove to fix the stator core between the upper end cover and the lower end cover, the stator winding is arranged in the internal cavity of the stator core, the inner side wall of the stator winding is provided with a protrusion, the stator winding is provided with a groove, and the protrusion and the groove are matched and clamped.

[0008] Further, an annular gasket is arranged between the inner top wall of the mounting groove and the rolling element, and the annular gasket is made of red steel paper.

[0009] Further, a wave-shaped gasket is arranged between the annular gasket in the mounting groove of the second mounting protrusion and the top wall of the mounting groove.

[0010] Further, the shell sleeve is provided with a wire hole, and the wire hole is fixedly provided with a wire outlet sheath.

[0011] After the above structure is adopted, the beneficial effects of the present application are as follows:

[0012] (1) By arranging the upper end cover, the shell sleeve and the lower end cover, the rotor assembly and the stator assembly are clamped with each other, the overall structure is simple and compact, the volume is small, the fastener can be disassembled and maintained, the installation is simple, and the production and maintenance costs are reduced.

[0013] (2) The structure is simple, heat is quickly dissipated, the heat accumulation in the oil pump motor is reduced, and the service life and performance of the oil pump motor are prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation on the present application.

[0015] Figure 1 The present application provides a whole structure schematic diagram of a sealed oil pump motor;

[0016] Figure 2 The present application provides an exploded view of a sealed oil pump motor;

[0017] Figure 3 The present application provides a rotor assembly structure schematic diagram of a sealed oil pump motor;

[0018] Figure 4 The present application provides an exploded view of a rotor assembly of a sealed oil pump motor;

[0019] Figure 5 The present application provides a sectional view of a sealed oil pump motor.

[0020] In the attached diagram: 1. Upper end cover, 2. Outer sleeve, 3. Lower end cover, 4. Fastener, 5. Rotor assembly, 6. Stator assembly, 7. Shaft, 8. Magnetic ring, 9. Mounting protrusion one, 10. Mounting protrusion two, 11. Mounting groove, 12. Rolling element, 13. Locking element, 14. Stator core, 15. Stator winding, 16. Locking groove, 17. Annular washer, 18. Wave washer, 19. Outlet sheath. Detailed Implementation

[0021] like Figures 1-2 As shown, a sealed oil pump motor includes an upper end cover 1, a housing sleeve 2, and a lower end cover 3. One end of the housing sleeve is snapped into the upper end cover 1, and the lower end cover 3 is snapped into the other end of the housing sleeve 2. The upper end cover 1 and the lower end cover 3 are detachably connected by fasteners 4. The motor also includes a rotor assembly 5 and a stator assembly 6. The stator assembly 6 is fixedly disposed between the upper end cover 1 and the lower end cover 3. The rotor assembly 5 is rotatably disposed between the upper end cover 1 and the lower end cover 3, and is sleeved inside the stator assembly 6. The other end of the rotor assembly 5 protrudes from the upper end cover 1. The end cover 1 is connected to the oil pump drive. The rotor assembly 5 includes a rotating shaft 7 and a magnetic ring 8. The rotating shaft 7 is rotatably located between the upper end cover 1 and the lower end cover 3. The magnetic ring 8 is fixedly sleeved on the outer circumference of the rotating shaft 7 and fixedly located inside the stator assembly 6. One end of the rotating shaft 7 passes through the upper end cover 1 and is connected to the oil pump drive. The magnetic ring 8 and the rotating shaft 7 are interference-fitted. The structure of the upper end cover, outer sleeve and lower end cover achieves the sealing of the motor and protects the rotor assembly 5 and the stator assembly 6. The rotor assembly 5 has a simple structure and is easy to produce and maintain.

[0022] like Figures 1-4 As shown, the upper end cover 1 is provided with a mounting protrusion 9, and the lower end cover 3 is provided with a mounting protrusion 10. The mounting protrusion 9 and the mounting protrusion 10 are arranged opposite to each other. Both mounting protrusion 9 and the mounting protrusion 10 are provided with mounting grooves 11. Rolling elements 12 are fixedly mounted in the mounting grooves 11 respectively. The two ends of the rotating shaft 7 are respectively inserted into the rolling elements 12 in the two mounting grooves 11. Two locking elements 13 are rotatably mounted on the rotating shaft 7. The locking elements 13 fix the two rolling elements 12 on the upper end cover 1 and the lower end cover 3 respectively. The rolling balls of the rolling elements 12 at both ends of the rotating shaft 7 reduce the wear of the rotating shaft 7. The locking elements 13 are used to fix the rolling elements 12, which is simple and secure.

[0023] like Figures 1-5As shown, the stator assembly 6 includes a stator core 14 and a stator winding 15, the stator core 14 is provided with a locking groove 16, the fastener 4 passes through the locking groove 16 to fix the stator core 14 between the upper end cover 1 and the lower end cover 3, the stator winding 15 is arranged in the internal cavity of the stator core 14, the inner side wall of the stator winding 15 is provided with a protrusion, the stator winding 15 is provided with a groove, the protrusion and the groove are matched and clamped, the stator core 14 and the stator winding 15 are clamped, the connecting parts such as bolts required for fixing are reduced, the types and quantities of parts for assembling the oil pump motor are reduced, the structure of the oil pump motor is simple, and the manufacturing cost of the oil pump motor is reduced.

[0024] The annular gasket 17 is made of red steel paper material, the red steel paper has excellent elasticity, wear resistance, corrosion resistance, heat resistance, mechanical strength, insulation performance and mechanical processing performance, is durable and low in cost, the annular gasket 17 in the mounting groove 11 of the mounting protrusion two 10 is provided between the top wall of the mounting groove 11 and the wave-shaped gasket 18, the wave-shaped gasket 18 provides better buffering, the shell sleeve 2 is provided with a wire hole, the wire hole is fixedly provided with a wire outlet sheath 19, the wire outlet sheath 19 is fixed on the shell sleeve 2, and the wire extends from the oil pump motor to the outside and is connected with external wires through the wire outlet sheath.

[0025] The sealed oil pump motor has the advantages that the whole aluminum shell is sealed, heat is quickly dissipated, the accumulation of heat inside the oil pump motor is reduced, the temperature rising speed is slow during work, and the service life is prolonged.

[0026] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents. In general, if those skilled in the art are inspired by it, without departing from the creative purpose of the utility model, similar structural modes and embodiments are not creatively designed without departing from the utility model, which should belong to the protection scope of the utility model.

Claims

1. A sealed oil pump motor, comprising an upper end cover, a housing sleeve, and a lower end cover, wherein one end of the housing sleeve is snapped into the upper end cover, and the lower end cover is snapped into the other end of the housing sleeve, and the upper and lower end covers are detachably connected by fasteners, characterized in that: It also includes a rotor assembly and a stator assembly. The stator assembly is fixedly disposed between the upper end cover and the lower end cover. The rotor assembly is rotatably disposed between the end cover and the lower end cover. The rotor assembly is sleeved inside the stator assembly. The other end of the rotor assembly extends out of the upper end cover and is connected to the oil pump drive.

2. The sealed oil pump motor according to claim 1, characterized in that: The rotor assembly includes a rotating shaft and a magnetic ring. The rotating shaft is rotatably disposed between an upper end cover and a lower end cover. The magnetic ring is fixedly sleeved on the outer circumference of the rotating shaft and is fixedly disposed inside the stator assembly. One end of the rotating shaft passes through the upper end cover and is connected to the oil pump for transmission. The magnetic ring and the rotating shaft are interference-fitted.

3. A sealed oil pump motor according to claim 2, characterized in that: The upper end cover is provided with a first mounting protrusion, and the lower end cover is provided with a second mounting protrusion. The first mounting protrusion and the second mounting protrusion are arranged opposite to each other. Each of the first mounting protrusion and the second mounting protrusion has a mounting groove. Rolling elements are fixedly mounted in the mounting grooves. The two ends of the rotating shaft are respectively inserted into the rolling elements in the two mounting grooves. Two locking elements are rotatably sleeved on the rotating shaft. The locking elements fix the two rolling elements to the upper end cover and the lower end cover respectively.

4. A sealed oil pump motor according to claim 3, characterized in that: The stator assembly includes a stator core and a stator winding. The stator core has a locking groove, and the fastener passes through the locking groove to fix the stator core between the upper end cover and the lower end cover. The stator winding is located in the internal cavity of the stator core. The inner sidewall of the stator winding has a protrusion and a groove, and the protrusion and the groove match and engage.

5. A sealed oil pump motor according to claim 4, characterized in that: An annular washer is provided between the top wall of the mounting groove and the rolling element, and the annular washer is made of red steel.

6. A sealed oil pump motor according to claim 5, characterized in that: A corrugated washer is provided between the annular washer in the mounting groove of the second mounting protrusion and the top wall of the mounting groove.

7. A sealed oil pump motor according to claim 6, characterized in that: The outer casing sleeve has a wire hole, and a wire outlet sleeve is fixedly installed on the wire hole. The wire outlet sleeve is fixed on the outer casing sleeve.

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