CN217824515U

CN217824515U - Motor end cover of integrated hydraulic oil way, motor with motor end cover and hydraulic station with motor end cover

Info

Publication number: CN217824515U
Application number: CN202221839827.8U
Authority: CN
Inventors: 项久鹏; 庞建军; 王增新; 阎晓飞
Original assignee: Super Synchronization Co ltd
Current assignee: Super Synchronization Co ltd
Priority date: 2022-07-16
Filing date: 2022-07-16
Publication date: 2022-11-15
Anticipated expiration: 2032-07-16

Abstract

The application relates to a motor end cover integrated with a hydraulic oil circuit, which relates to the technical field of hydraulic stations and comprises an end cover body, wherein the oil circuit is integrated in the end cover body; the end cover body is provided with a first surface, a second surface and a side wall, wherein the first surface and the second surface are opposite to each other, the side wall is used for connecting the first surface and the second surface, and the first surface and the second surface are respectively convexly provided with a connecting part; the oil way is arranged on the side wall and extends to penetrate the second surface, the end cover further comprises a mounting hole penetrating the first surface and the second surface, and the mounting hole is separated from the oil way. Through adopting above-mentioned technical scheme, it is inside the end cover body to integrate the oil circuit, makes the motor end cover have the function of oil circuit piece to hydraulic pressure station can reduce the volume of hydraulic pressure station through the motor end cover replaces oil circuit piece when using the motor that has this motor end cover.

Description

Motor end cover of integrated hydraulic oil way, motor with motor end cover and hydraulic station with motor end cover

Technical Field

The application relates to the technical field of hydraulic stations, in particular to a motor end cover, a motor and a hydraulic station which are integrated with a hydraulic oil way.

Background

The hydraulic station is also called as a hydraulic pump station, a motor drives an oil pump to rotate, the pump pumps oil after absorbing oil from an oil tank, mechanical energy is converted into pressure energy of hydraulic oil, the hydraulic oil is subjected to direction, pressure and flow regulation by a hydraulic valve through an integrated block (or valve combination) and then is transmitted to an oil cylinder or an oil motor of the hydraulic machine through an external pipeline, so that the direction change of a hydraulic motor, the strength and the speed of the hydraulic motor are controlled, and various hydraulic machines are pushed to do work.

The power source part of the existing hydraulic station in the market mainly comprises a motor, a bell-shaped cover, a coupling, a hydraulic pump and the like. The bell-shaped cover is used as a middle body to connect the motor and the pump, and the connection between the motor shaft and the pump shaft is realized through a coupling. Still other hydraulic stations directly connect the pump to the motor, eliminating the bell (but the coupling) and saving space. However, the front end covers of the two motors have single functions, and the hydraulic station has large volume and is not suitable for occasions with small installation space.

In some occasions, such as high-grade numerical control machine tools, the hydraulic station is sometimes required to be arranged near the actuating mechanism (such as the top end of a main shaft and the like), so that high requirements are imposed on the overall size and weight of the corresponding hydraulic station, and the size and weight are required to be reduced as much as possible under the condition of unchanged functions.

SUMMERY OF THE UTILITY MODEL

The motor end cover is integrated with a hydraulic oil way, and a motor and a hydraulic station with the motor end cover are provided; the hydraulic station solves the problems that in the prior art, the hydraulic station is large in size and not easy to be suitable for high-grade numerical control machines and the like which need small size and have functions which are not reduced.

In a first aspect, the application provides a motor end cover of integrated hydraulic oil circuit adopts following technical scheme:

a motor end cover integrated with a hydraulic oil circuit comprises: the end cover comprises an end cover body, wherein an oil way is integrated in the end cover body; the end cover body is provided with a first surface, a second surface and a side wall, wherein the first surface and the second surface are opposite to each other, the side wall is used for connecting the first surface and the second surface, and the first surface and the second surface are respectively convexly provided with a connecting part; the oil way is arranged on the side wall and extends to penetrate the second surface, the end cover body further comprises a mounting hole penetrating the first surface and the second surface, and the mounting hole is separated from the oil way.

Through adopting above-mentioned technical scheme, integrate the oil circuit inside the end cover body, make the motor end cover have the function of oil circuit piece to hydraulic pressure station is when using the motor that has this motor end cover, can reduce the volume of hydraulic pressure station through the motor end cover replacement oil circuit piece.

Optionally, the mounting hole includes from the first hole that first surface seted up towards the second surface, from the second hole that the second surface seted up towards the first surface and connect the third hole in first hole and second hole, the diameter in first hole and second hole all is greater than the diameter in third hole.

Through adopting above-mentioned technical scheme, first hole is used for being connected with the motor, and the second hole is used for linking to each other with hydraulic pump, oil tank, and the third hole is used for the motor shaft of motor to pass to link to each other with the hydraulic pump of the other end.

Optionally, the side wall is provided with a plurality of spaced bosses, and outer surfaces of the bosses away from the side wall are flat surfaces.

By adopting the technical scheme, the motor end cover is convenient to be connected with the external actuating mechanism and the oil circuit block.

Optionally, the oil path includes an output path and an oil return path, and the output path and the oil return path are both opened from the outer surface of the same boss and respectively extend through the second surface.

By adopting the technical scheme, the basic function of the oil circuit block is realized, so that the volume and the weight of the oil circuit block are not required to be reduced, and the purpose of reducing the volume and the weight of the hydraulic station is achieved; one end of the output path and one end of the oil return path are both arranged on the outer surface of the same boss, so that the reaction force generated by the hydraulic oil flowing at high pressure is counteracted, and the structural connection is kept stable.

Optionally, the oil path further includes an overflow path, one end of the overflow path is communicated with the output path, the other end of the overflow path is communicated with the oil return path, an overflow hole is formed in the outer surface of the other boss of the end cover body, the overflow hole is communicated with the overflow path, and an overflow valve is arranged in the overflow hole.

Through adopting above-mentioned technical scheme, when hydraulic pump output pressure was too high, can carry out the pressure release through the overflow valve, in returning surplus hydraulic oil circulation oil tank, when needing hydraulic pressure station to possess the overflow function, this function can be realized to the integrated overflow flow path in the end cover body, and need not increase the oil circuit piece and realize the overflow function, if still need the oil circuit piece to realize other functions, also can be through reducing oil circuit piece overflow module, thereby reduce the volume and/or the weight of oil circuit piece, thereby reduce the volume and/or the weight of hydraulic pressure station.

Optionally, the connecting portion of the first surface and the connecting portion of the second surface of the end cover body are respectively provided with an external thread.

By adopting the technical scheme, the motor is connected with the motor and the oil tank.

Optionally, the power transmission device further comprises a ground pin, wherein the ground pin is arranged on the side wall and opposite to the boss provided with the output path.

Through adopting above-mentioned technical scheme for independently fix the motor end cover to reduce the impact of the effort of the high-pressure oil that flows in the oil circuit and end cover to the motor end cover, prevent that the connection between motor end cover and motor body, hydraulic pump and the oil tank is not hard up.

In a second aspect, the present application provides a motor that adopts the following technical solution:

a motor comprises a motor body and the motor end cover; the motor body is connected with the connecting portion of the first surface of the end cover body, the motor shaft of the motor body is inserted into the mounting hole, the motor body further comprises a motor bearing, and the motor bearing is arranged around the motor shaft and is also located in the mounting hole.

By adopting the technical scheme, the motor is integrated with the function of the oil circuit block to replace the oil circuit block or replace part of the function of the oil circuit block, and the oil circuit block is not used or the volume and the weight of the oil circuit block are reduced, so that the volume and the weight of the hydraulic station are reduced.

In a third aspect, the hydraulic station provided by the present application adopts the following technical scheme:

a hydraulic station is provided with the motor, an oil tank and an oil path block, wherein a hydraulic pump and an oil return pipe are arranged in the oil tank, and the hydraulic pump is connected with the second surface of an end cover body and is directly connected with a motor shaft of the motor body; the oil circuit block is connected with the side wall of the end cover body, and the oil circuit of the end cover body is communicated with the oil circuit of the oil circuit block and the oil circuit of the hydraulic pump.

Through adopting above-mentioned technical scheme, the oil circuit piece can increase the functionality of hydraulic pressure station, realizes hydraulic actuator's action, and the basic function of oil circuit piece has been integrated in the motor end cover simultaneously for the volume weight of oil circuit piece reduces correspondingly.

Optionally, an oil suction pipe is further arranged in the oil tank, and the oil suction pipe is communicated with the hydraulic pump.

Through adopting above-mentioned technical scheme, the hydraulic pump of being convenient for takes out the oil of oil tank bottom.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the oil way is integrated into the end cover body, so that the function of the oil way block is realized, and the function of replacing or partially replacing the oil way block is realized, so that the oil way block is not used or the volume and the weight of the oil way block are reduced, and the volume and the weight of a hydraulic station are reduced;

2. when hydraulic oil flows in the oil way, heat exchange can be carried out between the hydraulic oil and the end cover, and the end cover is cooled, so that the temperature of the motor is reduced.

Drawings

FIG. 1 is a schematic perspective view of embodiment 1 of the present application;

FIG. 2 is a schematic perspective view of another perspective view of embodiment 1 of the present application;

FIG. 3 is a schematic cross-sectional view showing the structure of example 1 of the present application;

FIG. 4 isbase:Sub>A schematic cross-sectional view taken along the line A-A in FIG. 3;

FIG. 5 is a left side view schematically showing the structure of embodiment 1 of the present application;

FIG. 6 is a schematic top view of the structure of embodiment 1 of the present application;

FIG. 7 is a cross-sectional structural schematic of the hydraulic station provided herein;

in the figure, 1, an end cap body; 11. a first surface; 12. a second surface; 13. a side wall; 14. a connecting portion; 15. a first hole; 16. a second hole; 17. a third aperture; 18. a boss; 2. an oil path; 21. an output path; 22. an oil return path; 23. an overflow path; 24. an overflow aperture; 25. an oil discharge path; 3. a motor body; 31. a motor shaft; 32. a motor bearing; 4. a hydraulic pump; 5. an oil tank; 51. an oil return pipe; 52. an oil suction pipe; 6. a ground margin; 7. an oil way block.

Detailed Description

The present application is described in further detail below with reference to fig. 1-7.

Example 1

Referring to fig. 1-2 and fig. 7, the present embodiment provides a motor end cover integrated with a hydraulic oil path, which specifically includes an end cover body 1, an oil path 2 is integrated in the end cover body 1, and the oil path 2 is a path through which oil flows and is a hole path formed at some specific positions of the end cover, so as to realize oil circulation in a hydraulic station to replace a pipeline. The end cap body 1 has opposite first and

second surfaces

11, 12. The second surface 12 is used for connecting with a motor, and the first surface 11 is connected with the hydraulic pump 4 and the oil tank 5; the side wall 13 connecting the first surface 11 and the second surface 12 is used for connecting with an external actuator, and the first surface 11 and the second surface 12 are respectively provided with a connecting part 14 in a protruding manner. The oil path 2 is opened from the side wall 13 and extends to the second surface 12, and the end cover body 1 further includes a mounting hole penetrating through the first surface 11 and the second surface 12, and the mounting hole is separated from the oil path 2.

The connecting part 14 of the first surface 11 and the connecting part 14 of the second surface 12 of the end cover body 1 are respectively provided with an external thread; respectively connected with the shell of the oil tank 5, the hydraulic pump 4 and the shell of the motor.

Referring to fig. 3 and 4, the mounting holes include a first hole 15 formed from the first surface 11 toward the second surface 12, a second hole 16 formed from the second surface 12 toward the first surface 11, and a third hole 17 connecting the first hole 15 and the second hole 16, the first hole 15, the second hole 16, and the third hole 17 are coaxially disposed, and diameters of the first hole 15 and the second hole 16 are larger than a diameter of the third hole 17. When the motor end cover is used for forming a hydraulic station, the first hole 15 is used for being connected with a shell of a motor, the second hole 16 is used for being connected with the hydraulic pump 4, and the third hole 17 is used for allowing a motor shaft 31 of the motor to penetrate through so that the motor shaft 31 of the motor is connected with the hydraulic pump 4.

The side wall 13 is provided with a plurality of spaced bosses 18, and the outer surface of the boss 18 away from the side wall 13 is a plane; the flat surface boss 18 facilitates the connection of an external actuator or oil circuit block to the end cap body 1.

Referring to fig. 5 and fig. 6, the oil path 2 includes an output path 21, an oil return path 22, an overflow path 23, and an oil discharge path 25, where the output path 21 and the oil return path 22 are both opened from the outer surface of the same boss 18 and respectively extend through to the second surface 12.

One end of the overflow path 23 is communicated with the output path 21, the other end is communicated with the oil return path 22, an overflow hole 24 is formed in the outer surface of the other boss 18 of the end cover body 1, the overflow hole 24 is communicated with the overflow path 23, and an overflow valve is arranged in the overflow hole 24.

The side wall 13 of the end cover body 1 is provided with a ground pin 6, and the ground pin 6 is opposite to a boss 18 provided with an output path 21. The ground feet 6 of the present application are arranged on the side walls 13 of the end cover body 1, enabling the whole hydraulic station to be fixed on the side walls or walls of one device.

Example 2

Referring to fig. 7, the present application further relates to a motor, which includes a motor body 3 and a motor end cover in embodiment 1; the motor body 3 is connected with the connecting portion 14 of the first surface 11 of the end cover body 1, the motor shaft 31 of the motor body 3 is inserted into the mounting hole, the motor body 3 further comprises a motor bearing 32, and the motor bearing 32 is arranged around the motor shaft 31 and also located in the mounting hole.

Example 3

Referring to fig. 7, the present application also relates to a hydraulic station having the motor, the oil tank 5, and the oil path block 7 in embodiment 2. A hydraulic pump 4, an oil return pipe 51 and an oil suction pipe 52 are arranged in the oil tank 5, and the hydraulic pump 4 is connected with the second surface 12 of the end cover body 1 and directly connected with a motor shaft 31 of the motor body 3; the oil path block 7 is connected with the side wall 13 of the end cover body 1, the oil path block 7 and the end cover body 1 can be fixedly connected through screws, oil holes at corresponding positions on contact surfaces of the oil path block and the end cover body are opposite, and communication of an oil path 2 is achieved, namely the oil path 2 of the end cover body 1 is communicated with the oil path of the oil path block 7 and the oil path of the hydraulic pump 4; an oil suction pipe 52 is further arranged in the oil tank 5, and the oil suction pipe 52 is communicated with the hydraulic pump 4.

The working principle of the hydraulic station of the embodiment is as follows: a motor shaft 31 on the motor rotates to drive the hydraulic pump 4 to work, hydraulic oil in the oil tank 5 is pumped out through the oil suction pipe 52 and is output to the oil path block 7 through the output path 21 in the end cover body 1 and is guided to an external execution mechanism; the return oil of the hydraulic oil in the external actuator enters the return oil path 22 through the oil path block 7 and returns to the oil tank 5 through the return oil pipe 51.

When the output pressure of the hydraulic oil in the output path 21 is too high, the relief valve is opened, and the excess hydraulic oil is guided back to the oil tank 5 through the relief path 23, thereby performing the function of relief protection.

During operation of the external actuator, the generated leakage oil flows back into the oil tank 5 through the oil discharge passage 25.

The motor end cover integrates the oil way 2 and is provided with the mounting hole, and the oil way 2 is positioned in the end cover body 1, so that an additional oil way pipeline is not needed, and a scattered hydraulic pipeline outside is avoided; the direct insertion of the motor and the hydraulic pump 4 is realized through the mounting hole, a coupling and a bell-shaped cover for protecting the coupling can be omitted, the size and the weight of the hydraulic station can be reduced, the structure is more compact, the motor end cover also realizes multifunctional integration, and the size of the hydraulic station can be reduced by adopting the motor end cover.

The embodiments of the present invention are preferred embodiments of the present application, and the protection scope of the present application is not limited thereby, wherein like parts are denoted by like reference numerals. Therefore, the method comprises the following steps: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A motor end cover integrated with a hydraulic oil circuit comprises: the end cover comprises an end cover body (1) and is characterized in that an oil way (2) is integrated in the end cover body (1);

the end cover body (1) is provided with a first surface (11), a second surface (12) and a side wall (13) for connecting the first surface (11) and the second surface (12), wherein the first surface (11) and the second surface (12) are opposite, and connecting parts (14) are respectively arranged on the first surface (11) and the second surface (12) in a protruding mode; the oil way (2) is formed in the side wall (13) and extends to penetrate through the second surface (12), the end cover body (1) further comprises a mounting hole penetrating through the first surface (11) and the second surface (12), and the mounting hole is separated from the oil way (2).

2. The end cover of the motor with the integrated hydraulic circuit, according to claim 1, is characterized in that the mounting holes comprise a first hole (15) formed from the first surface (11) towards the second surface (12), a second hole (16) formed from the second surface (12) towards the first surface (11), and a third hole (17) connecting the first hole (15) and the second hole (16), and the diameters of the first hole (15) and the second hole (16) are larger than the diameter of the third hole (17).

3. The motor end cover of the integrated hydraulic oil circuit as recited in claim 1, characterized in that the side wall (13) is provided with a plurality of spaced bosses (18), and the outer surface of the bosses (18) away from the side wall (13) is a plane.

4. The end cover of the motor with the integrated hydraulic oil circuit according to claim 3, wherein the oil circuit (2) comprises an output circuit (21) and an oil return circuit (22), and the output circuit (21) and the oil return circuit (22) are both opened from the outer surface of the same boss (18) and respectively extend through to the second surface (12).

5. The end cover of the motor with the integrated hydraulic oil circuit according to claim 4, wherein the oil circuit (2) further comprises an overflow circuit (23), one end of the overflow circuit (23) is communicated with the output circuit (21), the other end of the overflow circuit is communicated with the oil return circuit (22), an overflow hole (24) is formed in the outer surface of the other boss (18) of the end cover body (1), the overflow hole (24) is communicated with the overflow circuit (23), and an overflow valve is arranged in the overflow hole (24).

6. The motor end cover of the integrated hydraulic oil circuit as recited in claim 1, characterized in that the connecting part (14) of the first surface (11) and the connecting part (14) of the second surface (12) of the end cover body (1) are respectively provided with an external thread.

7. The motor end cover of the integrated hydraulic oil circuit is characterized by further comprising a ground pin (6), wherein the ground pin (6) is arranged on the side wall (13) and is opposite to a boss (18) provided with an output circuit (21).

8. An electric machine, characterized by comprising an electric machine body (3) and an electric machine end cover according to any one of claims 1-7; the motor body (3) is connected with a connecting portion (14) of a first surface (11) of the end cover body (1), a motor shaft (31) of the motor body (3) is inserted into the mounting hole, the motor body (3) further comprises a motor bearing (32), and the motor bearing (32) is arranged around the motor shaft (31) and is also located in the mounting hole.

9. A hydraulic station, characterized by: the end cover comprises the motor, an oil tank (5) and an oil path block (7) as claimed in claim 8, wherein a hydraulic pump (4) and an oil return pipe (51) are arranged in the oil tank (5), and the hydraulic pump (4) is connected with the second surface (12) of the end cover body (1) and is directly connected with a motor shaft (31) of the motor body (3); the oil circuit block (7) is connected with the side wall (13) of the end cover body (1), and the oil circuit of the end cover body (1) is communicated with the oil circuit of the oil circuit block (7) and the oil circuit of the hydraulic pump (4).

10. The hydraulic station according to claim 9, characterized in that an oil suction pipe (52) is also arranged inside the oil tank (5), the oil suction pipe (52) communicating with the hydraulic pump (4).