CN220540016U - Servo hydraulic power unit mechanism - Google Patents

Abstract

The utility model relates to the technical field of hydraulic servo systems, in particular to a servo hydraulic power unit mechanism, which comprises a motor and a gear pump for providing power for a hydraulic system; the gear pump is arranged at the output end of the motor; the motor comprises an end cover, a shell and a heat dissipation tail seat, wherein heat dissipation strips are integrally arranged on the periphery side of the shell at equal intervals, one ends of the heat dissipation strips are matched and arranged in grooves formed in the periphery side edges of the end cover, and the other ends of the heat dissipation strips are matched and arranged in holes formed in the periphery side edges of the heat dissipation tail seat; and a positioning ring is fixed at the edge of the end face of the end cover and the edge of the end face of the heat dissipation tail seat at equal intervals, and the positioning ring is connected with a limiting stud in a matched mode. The utility model forms a power unit by the motor and gear pump structure, provides power output for a hydraulic system, is convenient to maintain, works stably, and has higher practical value.

Description

Servo hydraulic power unit mechanism

Technical Field

The utility model relates to the technical field of hydraulic servo systems, in particular to a servo hydraulic power unit mechanism.

Background

The hydraulic servo system enables the output quantity of the system, such as displacement, speed or force, to automatically, quickly and accurately follow the change of the input quantity, and simultaneously, the output power is greatly amplified. The hydraulic servo system has been widely used in industrial control with the unique advantages of high response speed, high load stiffness, high control power, etc.

In the application of a hydraulic servo system, a hydraulic station is used as one of common equipment, the hydraulic station is also called a hydraulic pump station, a motor drives an oil pump to rotate, the oil pump sucks oil from an oil tank and then pumps the oil, mechanical energy is converted into pressure energy of hydraulic oil, the hydraulic oil is transmitted to an oil cylinder or an oil motor of a hydraulic machine through an external pipeline after direction, pressure and flow regulation by a hydraulic valve through an integrated block (or a valve combination), and therefore the direction change, the strength and the speed of the hydraulic machine are controlled, and various hydraulic machines are driven to do work.

The hydraulic station provides driving force for a hydraulic system by the motor and the gear pump, but in actual use, the structure is particularly a motor structure, the disassembly process of the shell is complex, the existing assembled shell is poor in stability, easy to generate noise and large in shaking amplitude, and therefore, the utility model provides a servo hydraulic power unit mechanism to improve the problems.

Disclosure of Invention

In order to achieve the above purpose, the present utility model provides the following technical solutions: a servo hydraulic power unit mechanism comprises a motor and a gear pump for providing power for a hydraulic system;

the gear pump is arranged at the output end of the motor;

the motor comprises an end cover, a shell and a heat dissipation tail seat, wherein heat dissipation strips are integrally arranged on the periphery side of the shell at equal intervals, one ends of the heat dissipation strips are matched and arranged in grooves formed in the periphery side edges of the end cover, and the other ends of the heat dissipation strips are matched and arranged in holes formed in the periphery side edges of the heat dissipation tail seat;

and a positioning ring is fixed at the edge of the end face of the end cover and the edge of the end face of the heat dissipation tail seat at equal intervals, and the positioning ring is connected with a limiting stud in a matched mode.

Preferably, the circumference of the end part of the limit stud is threaded, and the end part of the limit stud is provided with a hexagonal hole in an inward concave manner.

Preferably, the inner ring of the positioning ring is in a threaded arrangement, and the positioning ring is in a circumferential array arrangement with respect to the center of the end cover or the heat dissipation tailstock.

Preferably, arc grooves for installing the limit studs are formed in the peripheral sides of the end cover, the shell and the heat dissipation tail seat, and the limit studs are arranged in parallel.

Preferably, the gear pump comprises an ear seat fixed at the center of the end face of the end cover, the ear seat is fixed with a pump body, and a sealing cover is fixed at the corner of the front end of the pump body through bolts.

Preferably, the pump body is internally provided with a gear member, and the gear member is connected with a shaft lever of the motor.

Preferably, the pump body is communicated with a liquid path channel, and the liquid path channel is used for conveying liquid to enter and exit.

Preferably, a connecting plate is fixed at the bottom of the shell, and the connecting plate is fixed between the connecting plate and the mounting surface.

Compared with the prior art, the utility model has the beneficial effects that:

the motor structure is used for abandoning the traditional shell assembling mode, a three-section assembling structure is adopted, when the motor structure is assembled, the extending ends of the radiating strips arranged on the periphery of the shell are inserted into the end cover and the radiating tailstock in an inserting mode, and then are fixed by the limit studs and the threads of the locating rings through clamping, so that the positions of the end cover, the shell and the radiating tailstock are relatively fixed.

Drawings

FIG. 1 is a front schematic view of the overall structure of the present utility model;

FIG. 2 is a rear schematic view of the overall structure of the present utility model;

FIG. 3 is a schematic front view of the overall structure of the present utility model;

fig. 4 is a schematic diagram of a limit stud structure according to the present utility model.

In the figure: 1. a motor; 11. an end cap; 12. a housing; 13. a heat dissipation tailstock; 14. a positioning ring; 15. a limit stud; 2. a gear pump; 21. a pump body; 22. a liquid path channel; 23. ear seats.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

Referring to fig. 1-4, there is shown: the embodiment is a preferred implementation manner in the technical scheme, and the servo hydraulic power unit mechanism comprises a motor 1 and a gear pump 2 for providing power for a hydraulic system;

the gear pump 2 is arranged at the output end of the motor 1;

the motor 1 comprises an end cover 11, a shell 12 and a heat dissipation tail seat 13, wherein heat dissipation strips are integrally arranged on the periphery side of the shell 12 at equal intervals, one ends of the heat dissipation strips are matched and arranged in grooves formed in the periphery side edge of the end cover 11, and the other ends of the heat dissipation strips are matched and arranged in holes formed in the periphery side edge of the heat dissipation tail seat 13;

a positioning ring 14 is fixed at equal distance at the edges of the end faces of the end cover 11 and the heat dissipation tail seat 13, and the positioning ring 14 is connected with a limit stud 15 in a matched manner;

it should be noted that, the power unit is formed to motor 1 and gear pump 2 structure that this application relates to, for hydraulic system provides power take off, and wherein motor 1 structure abandons traditional casing assembled mode, adopts syllogic assembled structure, when the equipment, with the mode of pegging graft, will the extension end of the radiating strip that shell 12 week side set up peg graft in end cover 11 and heat dissipation tailstock 13, again by spacing double-screw bolt 15 and holding ring 14's screw thread is fixed to the centre gripping effect for keep the position relatively fixed between end cover 11, shell 12 and the heat dissipation tailstock 13 three, above-mentioned mounting means is simple, is convenient for expand totally to motor 1's casing part, and relative present integrated configuration, motor 1's casing structure in this application is more stable, and when motor 1 operation, the shake and the noise that produce are all less, thereby have higher practical value.

As shown in fig. 1 and 2, arc-shaped grooves for installing the limit studs 15 are formed on the peripheral sides of the end cover 11, the shell 12 and the heat dissipation tail seat 13, and a plurality of limit studs 15 are arranged in parallel;

it should be noted that, the middle part of the limit stud 15 is embedded in the peripheral sides of the end cover 11, the housing 12 and the heat dissipation tail seat 13, so that the overall structure is more stable, and the limit stud 15 does not cause larger noise and vibration influence when the motor 1 works;

the gear pump 2 comprises an ear seat 23 fixed at the center of the end face of the end cover 11, the ear seat 23 is fixed with a pump body 21, and a sealing cover is fixed at the corner of the front end of the pump body 21 through bolts; the pump body 21 is internally provided with a gear piece, and the gear piece is connected with a shaft lever of the motor 1; the pump body 21 is communicated with a liquid path channel 22, and the liquid path channel 22 is used for conveying liquid to enter and exit;

it should be noted that, the ear seat 23 is used for connecting and fixing the gear pump 2 and the motor 1, the gear pump 2 is a rotary pump that conveys or pressurizes the liquid by means of the working volume change and movement formed between the pump cylinder and the meshing gear, two closed spaces are formed by two gears, a pump body, 2 and a front cover and a rear cover, when the gears rotate, the volume of the space on the disengaging side of the gears is changed from small to large to form vacuum, the liquid is sucked, the volume of the space on the meshing side of the gears is changed from large to small, the liquid is extruded into the liquid channel 22, the suction cavity and the discharge cavity are separated by the meshing line of the two gears, the pressure of the discharge outlet of the gear pump is completely dependent on the resistance of the pump, and the gear pump 2 related in the application is a mature technology at present, only the principle of the gear pump is briefly described herein, and the structure of the servo hydraulic power unit mechanism is made clearly;

a connecting plate is fixed at the bottom of the shell 12, and the connecting plate is fixed between the connecting plate and the mounting surface;

after the connecting plate is fixed to the mounting surface by the bolts, the entire power unit mechanism is fixed in position.

As shown in fig. 3, the inner ring of the positioning ring 14 is in a threaded arrangement, and the positioning ring 14 is in a circumferential array arrangement with respect to the center of the end cover 11 or the heat dissipation tail seat 13;

it should be noted that, the positioning ring 14 is used for fixing the installation of the limit stud 15, under the linkage action of the positioning ring 14 and the limit stud 15, the distance between the end cover 11 and the heat dissipation tail seat 13 is fixed, so that the positions of the shell 12 and the end cover are further fixed, and the positioning rings 14 and the limit stud 15 are used for reinforcing the positions among the end cover 11, the shell 12 and the heat dissipation tail seat 13.

As shown in fig. 4, the circumferential side of the end of the limit stud 15 is threaded, and a hexagonal hole is concavely formed in the end of the limit stud 15;

it should be noted that, the middle part of the limit stud 15 is smooth, the screw thread that the tip set up is used for connecting the holding ring 14, under the effect of limit stud 15, the corresponding holding ring 14 keeps the distance fixed, the hexagonal hole that limit stud 15 inwards sunken set up is used with hexagonal wrench cooperation for the rotation of this limit stud 15 of auxiliary maintenance personnel degree.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (8)

1. A servo hydraulic power unit mechanism comprises a motor (1) and a gear pump (2) which provide power for a hydraulic system;

the method is characterized in that:

the gear pump (2) is arranged at the output end of the motor (1);

the motor (1) comprises an end cover (11), a shell (12) and a heat dissipation tail seat (13), wherein heat dissipation strips are integrally arranged on the periphery of the shell (12) at equal intervals, one end of each heat dissipation strip is matched and arranged in a groove formed in the periphery of the end cover (11), and the other end of each heat dissipation strip is matched and arranged in a hole formed in the periphery of the heat dissipation tail seat (13);

and a positioning ring (14) is fixed at equal distance at the edges of the end faces of the end cover (11) and the heat dissipation tailstock (13), and the positioning ring (14) is connected with a limiting stud (15) in a matched mode.

2. A servo hydraulic power unit mechanism as recited in claim 1, wherein: the periphery of the end part of the limit stud (15) is in threaded arrangement, and a hexagonal hole is formed in the end part of the limit stud (15) in an inward concave manner.

3. A servo hydraulic power unit mechanism as recited in claim 1, wherein: the inner ring of the positioning ring (14) is in threaded arrangement, and the positioning ring (14) is in circumferential arrangement with respect to the center of the end cover (11) or the heat dissipation tailstock (13).

4. A servo hydraulic power unit mechanism as recited in claim 1, wherein: arc-shaped grooves for installing the limit studs (15) are formed in the peripheral sides of the end cover (11), the shell (12) and the heat dissipation tail seat (13), and the limit studs (15) are arranged in parallel.

5. A servo hydraulic power unit mechanism as recited in claim 1, wherein: the gear pump (2) comprises an ear seat (23) fixed at the center of the end face of the end cover (11), the ear seat (23) is fixed with a pump body (21), and a sealing cover is fixed at the front end corner of the pump body (21) through bolts.

6. A servo-hydraulic power unit mechanism as recited in claim 5, wherein: the pump body (21) is internally provided with a gear part, and the gear part is connected with a shaft rod of the motor (1).

7. A servo-hydraulic power unit mechanism as recited in claim 5, wherein: the pump body (21) is communicated with a liquid path channel (22), and the liquid path channel (22) is used for conveying liquid to enter and exit.

8. A servo hydraulic power unit mechanism as recited in claim 1, wherein: a connecting plate is fixed at the bottom of the shell (12), and the connecting plate is fixed between the connecting plate and the mounting surface.