Lifting oil pump motor meshing sleeve device

Abstract

The utility model belongs to the technical field of lifting oil pumps, and particularly relates to a lifting oil pump motor meshing sleeve device which comprises a rear end cover installed on a motor shell, a front end cover is arranged on the side, away from the rear end cover, of the motor shell, and a rotating oil pump shaft head piece fixedly connected with one end of a driving shaft is arranged on the front end cover. The rotating oil pump shaft head piece is used for being connected with a rotating oil pump, the other end of the driving shaft is connected with the lifting oil pump shaft head piece through a meshing sleeve assembly, the lifting oil pump shaft head piece is used for being connected with a lifting oil pump, and the meshing sleeve assembly comprises a sliding ring connected with the driving shaft in a sliding mode. The rotating oil pump and the lifting oil pump are driven by one set of motor equipment to work, and compared with the prior art that two sets of motor equipment are used for driving the rotating oil pump and the lifting oil pump, the rotating oil pump and the lifting oil pump are driven by one set of motor equipment, so that the rotating oil pump and the lifting oil pump are driven to rotate or stop rotating. The utilization rate of electrical equipment is improved, and the weight of the whole vehicle is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting oil pumps, in particular to a meshing sleeve device for a lifting oil pump motor. Background Art

[0002] Off-highway dump trucks are mainly used in mines and engineering, are more durable than general load trucks, and have a greater load capacity. The hydraulic steering system and hydraulic lifting system adopted by them are powered by two motors respectively. In actual use, the hydraulic oil pump of the steering system is always working, while the application frequency of the lifting system in the operation of the dump truck is relatively low, resulting in low application efficiency of the electrical equipment driving the lifting system. Moreover, the electrical equipment occupies a certain space on the vehicle body. The utility model provides a meshing sleeve device for a lifting oil pump motor, which realizes that one motor drives the hydraulic oil pump of the lifting system and the hydraulic oil pump of the steering system at the same time, improves the utilization rate of the electrical equipment, reduces the space occupied by the electrical equipment, and reduces the weight of the whole vehicle. Content of the Utility Model

[0003] In order to overcome the above-mentioned defects existing in the prior art, the utility model provides a meshing sleeve device for a lifting oil pump motor.

[0004] A meshing sleeve device for a lifting oil pump motor includes a rear end cover installed on the motor housing. A front end cover is provided on one side of the motor housing away from the rear end cover. A rotating oil pump shaft head part fixedly connected to one end of a driving shaft is provided at the front end cover. The rotating oil pump shaft head part is used to connect with a rotating oil pump. The other end of the driving shaft is connected to a lifting oil pump shaft head part through a meshing sleeve assembly. The lifting oil pump shaft head part is used to connect with a lifting oil pump. The meshing sleeve assembly includes a slip ring slidably connected to the driving shaft. The slip ring drives the lifting oil pump shaft head part to rotate or stop rotating by connecting or disconnecting with the lifting oil pump shaft head part.

[0005] Further, the rear end cover is fixedly connected to a meshing support cover. The slip ring is installed in the meshing support cover. An electromagnetic coil sleeve is provided at one end of the meshing support cover close to the lifting oil pump shaft head part. An electromagnetic coil is provided on the electromagnetic coil sleeve.

[0006] Further, a spring seat is provided at one end of the driving shaft close to the lifting oil pump shaft head part. An annular reset groove is provided on the slip ring. A reset spring is provided in the reset groove. One end of the reset spring is connected to the spring seat, and the other end is connected to the wall of the reset groove.

[0007] Further, a support cover end cover is provided at the open end of the meshing support cover. A through hole for connecting with a lifting oil pump is provided on the support cover end cover.

[0008] Further, spline holes are provided on both the lifting oil pump shaft head part and the rotating oil pump shaft head part for respectively mating and connecting with the spline shafts of the lifting oil pump and the rotating oil pump.

[0009] Further, a limiting spline is provided on the annular outer wall of the lifting oil pump shaft head part, and a limiting spline groove for mating and connecting with the limiting spline is provided on the inner wall of the slip ring near the end of the lifting oil pump shaft head part.

[0010] Further, the front end cover is connected to the mounting plate, and the mounting plate is used for mounting the motor housing.

[0011] Further, a rotating spline groove is provided on the inner wall of the slip ring away from the end of the lifting oil pump shaft head part, and the slip ring is in mating connection with the rotating spline on the drive shaft through the rotating spline groove.

[0012] Due to the adoption of the above technical solutions, the beneficial technical effects of the present utility model are as follows: By setting the engaging sleeve assembly in the present utility model, it realizes that a set of motor equipment drives the rotating oil pump and the lifting oil pump to work. Compared with the prior art where two sets of motor equipment are used to drive the rotating oil pump and the lifting oil pump, it improves the utilization rate of electrical equipment, saves energy, reduces the space occupied by electrical equipment, reduces the weight of the whole vehicle, and improves the transportation efficiency of the whole vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic cross-sectional structure view of a lifting oil pump motor engaging sleeve device of the present utility model;

[0014] Figure 2 It is a schematic cross-sectional structure view of the slip ring in the present utility model;

[0015] Figure 3 It is the front view of the slip ring in the present utility model;

[0016] Figure 4 It is a schematic cross-sectional structure view of the electromagnetic coil sleeve in the present utility model.

[0017] In the figure: 1. Motor housing, 2. Rear end cover, 3. Front end cover, 4. Drive shaft, 5. Rotating oil pump shaft head part, 6. Lifting oil pump shaft head part, 7. Slip ring, 8. Engaging support cover, 9. Electromagnetic coil sleeve, 10. Spring seat, 11. Reset groove, 12. Support cover end cover, 13. Through hole, 14. Spline hole, 15. Limiting spline, 16. Limiting spline groove, 17. Mounting plate, 18. Rotating spline groove. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] To more clearly illustrate the technical solution of the present utility model, the present utility model will be further described below in conjunction with the accompanying drawings. Obviously, the accompanying drawings described below are only one embodiment of the present utility model. For those of ordinary skill in the art, without creative efforts, according to this drawing and the embodiment, obtaining other embodiments all fall within the protection scope of the present utility model.

[0019] According to Figures 1-4 As shown, a meshing sleeve device for a lifting oil pump motor includes a rear end cover 2 installed on a motor housing 1. On one side of the motor housing 1 away from the rear end cover 2, there is a front end cover 3. At the front end cover 3, there is a rotating oil pump shaft head part 5 fixedly connected to one end of a driving shaft 4. The rotating oil pump shaft head part 5 is used to connect with a rotating oil pump. The other end of the driving shaft 4 is connected to a lifting oil pump shaft head part 6 through a meshing sleeve assembly. The lifting oil pump shaft head part 6 is used to connect with a lifting oil pump. The meshing sleeve assembly includes a slip ring 7 slidably connected to the driving shaft 4. The slip ring 7 drives the lifting oil pump shaft head part 6 to rotate or stop rotating by connecting or disconnecting with the lifting oil pump shaft head part 6.

[0020] In the above specific technical solution, by setting the meshing sleeve assembly, it realizes that a set of motor equipment drives the rotating oil pump and the lifting oil pump to work. Compared with the prior art where two sets of motor equipment are used to drive the rotating oil pump and the lifting oil pump respectively, it improves the utilization rate of electrical equipment, saves energy, reduces the space occupied by electrical equipment, lightens the weight of the whole vehicle, and improves the transportation efficiency of the whole vehicle.

[0021] During the specific use process, one end of the driving shaft 4 is fixedly connected to the rotating oil pump shaft head part 5, so as to ensure that the rotating oil pump is always in a working state during the operation of the motor. The other end of the driving shaft 4 is connected to the lifting oil pump through the meshing sleeve assembly. When the slip ring 7 moves towards the lifting oil pump shaft head part 6 and connects with it, the rotation of the driving shaft 4 drives the slip ring 7 and then drives the lifting oil pump shaft head part 6 to rotate. The lifting oil pump shaft head part 6 is connected to the lifting oil pump, so that the lifting oil pump works. When the slip ring 7 moves away from the lifting oil pump shaft head part 6, the slip ring 7 cannot drive the lifting oil pump shaft head part 6 to rotate, and the lifting oil pump will stop working. Through the design of the present utility model, it realizes that during the operation of a set of motors, the rotating oil pump is always in a working state, and the lifting oil pump can be started when needed.

[0022] The rear end cover 2 is fixedly connected to a meshing support cover 8. The slip ring 7 is installed in the meshing support cover 8. At one end of the meshing support cover 8 close to the lifting oil pump shaft head part 6, there is an electromagnetic coil sleeve 9, and an electromagnetic coil is provided on the electromagnetic coil sleeve 9.

[0023] In the above specific technical solution, when the electromagnetic coil is energized, the slip ring 7 slides toward the oil pump shaft head part under the action of electromagnetic force and is connected to the oil pump shaft head part. The power of the motor is transmitted to the oil pump shaft head part through the slip ring 7, and then transmitted from the oil pump shaft head part to the lifting oil pump to make it rotate.

[0024] One end of the drive shaft 4 close to the oil pump shaft head part 6 is provided with a spring seat 10. The slip ring 7 is provided with an annular reset groove 11. A reset spring is arranged in the reset groove 11. One end of the reset spring is connected to the spring seat 10, and the other end is connected to the wall of the reset groove 11. When the electric coil is powered off, the slip ring 7 resets under the action of the reset spring, and the connection relationship between the slip ring 7 and the oil pump shaft head part is released.

[0025] The open end of the meshing support cover 8 is provided with a support cover end cover 12. The support cover end cover 12 is provided with a through hole 13 for connecting with the lifting oil pump.

[0026] Both the lifting oil pump shaft head part 6 and the rotating oil pump shaft head part 5 are provided with spline holes 14 for respectively cooperating and connecting with the spline shafts of the lifting oil pump and the rotating oil pump.

[0027] In the above specific technical solution, the spline shafts of the lifting oil pump and the rotating oil pump are inserted into the spline holes 14 on the lifting oil pump shaft head part 6 and the rotating oil pump shaft head part 5, so that when the lifting oil pump shaft head part 6 and the rotating oil pump shaft head part 5 rotate, they drive the lifting oil pump and the rotating oil pump to rotate.

[0028] The outer circumferential wall of the lifting oil pump shaft head part 6 is provided with a limiting spline 15. The inner wall of one end of the slip ring 7 close to the lifting oil pump shaft head part 6 is provided with a limiting spline groove 16 that cooperates and connects with the limiting spline 15.

[0029] The inner wall of the end of the slip ring 7 far from the lifting oil pump shaft head part 6 is provided with a rotating spline groove 18. The slip ring 7 is connected with the rotating spline on the drive shaft 4 through the rotating spline groove 18.

[0030] In the above specific technical solution, the lifting oil pump shaft head part 6 is spline-connected with the slip ring 7, and the slip ring 7 is spline-connected with the drive shaft 4, so that the power of the motor is transmitted to the lifting oil pump shaft head part 6 through the slip ring 7, and the slip ring 7 can move closer to and away from the lifting oil pump shaft head part 6 relative to the drive shaft 4.

[0031] The front end cover 3 is connected to the mounting plate 17. The mounting plate 17 is used to mount the motor housing 1, which is convenient for the installation of the motor.

[0032] The above embodiments are only exemplary embodiments of the present utility model and are not used to limit the present utility model. The protection scope of the present utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements within the essence and protection scope of the present utility model, and such modifications or equivalent replacements should also be regarded as falling within the protection scope of the present utility model.

Claims

1. A lifting oil pump motor engagement sleeve device, comprising a rear end cover (2) mounted on a motor housing (1), characterized in that: A front end cover (3) is provided on a side of the motor housing (1) away from the rear end cover (2). A rotating oil pump shaft head (5) fixedly connected to one end of a drive shaft (4) is provided on the front end cover (3). The rotating oil pump shaft head (5) is used to connect to the rotating oil pump. The other end of the drive shaft (4) is connected to a lifting oil pump shaft head (6) through an engaging sleeve assembly. The lifting oil pump shaft head (6) is used to connect to the lifting oil pump. The engaging sleeve assembly includes a slip ring (7) slidably connected to the drive shaft (4). The slip ring (7) drives the lifting oil pump shaft head (6) to rotate or stop rotating by connecting or releasing the connection relationship with the lifting oil pump shaft head (6).

2. A lifting oil pump motor engagement sleeve device according to claim 1, characterized in that: The rear end cover (2) is fixedly connected to the meshing support cover (8), the slip ring (7) is installed in the meshing support cover (8), and an electromagnetic coil sleeve (9) is provided at one end of the meshing support cover (8) close to the lifting oil pump shaft head (6), and an electromagnetic coil is provided on the electromagnetic coil sleeve (9).

3. A lifting oil pump motor engagement sleeve device according to claim 1, characterized in that: A spring seat (10) is provided at one end of the drive shaft (4) close to the lifting oil pump shaft head (6), and an annular reset groove (11) is provided on the slip ring (7). A reset spring is provided in the reset groove (11), and one end of the reset spring is connected to the spring seat (10), and the other end is connected to the groove wall of the reset groove (11).

4. A lifting oil pump motor engagement sleeve device according to claim 2, characterized in that: The open end of the meshing support cover (8) is provided with a support cover end cover (12), and the support cover end cover (12) is provided with a through hole (13) for connecting with a lifting oil pump.

5. A lifting oil pump motor engagement sleeve device according to claim 1, characterized in that: The lifting oil pump shaft head piece (6) and the rotating oil pump shaft head piece (5) are both provided with spline holes (14) for respectively matching and connecting with the spline shaft of the lifting oil pump and the spline shaft of the rotating oil pump.

6. A lifting oil pump motor engagement sleeve device according to claim 2, characterized in that: A limiting spline (15) is provided on the annular outer wall of the lifting oil pump shaft head (6), and a limiting spline groove (16) which is matched and connected with the limiting spline (15) is provided on the inner wall of the slip ring (7) close to one end of the lifting oil pump shaft head (6).

7. A lifting oil pump motor engagement sleeve device according to claim 1, characterized in that: The front end cover (3) is connected to a mounting plate (17), and the mounting plate (17) is used to mount the motor housing (1).

8. A lifting oil pump motor engagement sleeve device according to claim 6, characterized in that: A rotating spline groove (18) is provided on the inner wall of the end of the slip ring (7) away from the lifting oil pump shaft head (6), and the slip ring (7) is connected to the rotating spline on the driving shaft (4) through the rotating spline groove (18).

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