CN219911052U

CN219911052U - Integrated pump drive unit

Info

Publication number: CN219911052U
Application number: CN202321344513.5U
Authority: CN
Inventors: 刘平; 蔡央; 张志超; 丁李宁; 徐星; 陈勇智
Original assignee: Zhuzhou Gear Co Ltd
Current assignee: Zhuzhou Gear Co Ltd
Priority date: 2023-05-30
Filing date: 2023-05-30
Publication date: 2023-10-27
Anticipated expiration: 2033-05-30

Abstract

The utility model provides an integrated pump drives unit, includes controller, motor, speed reducer and hydraulic pump, and the motor has the output shaft of connecting outside reduction gear, has the mounting platform that is used for the integrated installation controller casing on the casing of motor, and controller and motor pass through copper bar and motor winding wire electrical connection. The integrated pump driving unit provided by the utility model utilizes the shell of the motor to carry out integrated connection and installation of the controller, improves the integration degree of the pump driving unit, saves the installation space, can be applied to a special narrow space environment, saves the manufacturing cost and simplifies the installation steps. The copper bars are adopted to connect the output end of the controller and the input end of the motor, so that the connection of a longer switching wire harness is avoided, the reliability of electrical connection is improved, and the integration level is improved.

Description

Integrated pump drive unit

Technical Field

The utility model relates to the field of hydraulic control systems, in particular to an integrated pump driving unit.

Background

Pumps are important components in hydraulic systems, which are elements for converting mechanical energy of a driving element in the hydraulic system into hydraulic energy, and there are various types of hydraulic pumps, such as: gear pumps, vane pumps, plunger pumps, screw pumps, diaphragm pumps, and the like. In the hydraulic system, a pump control system is required to drive and control various pumps. In the prior art, a control unit drives and controls a motor, and an output shaft of the motor is connected with a primary speed reducer to drive and control a hydraulic pump. In some specific application scenarios, such as engineering machinery and special vehicles, a driving unit of a hydraulic pump is generally installed in a narrow space, and certain requirements are put on the design of an integrated structure of the driving unit in order to adapt to the installation of the driving unit in the narrow space.

By searching, related technical documents related to hydraulic pump driving control are disclosed in the prior art. For example, the publication number CN 111441926A is named as an utility model patent of a hybrid gearbox driving motor cooling electric oil pump system and a control method. The utility model provides a hybrid gearbox driving motor cooling electric oil pump system and control method, which comprises the following steps: the oil pump is used for pumping the oil absorbed by the oil suction filter, and the oil pump motor is used for providing rotating speed and torque for the oil pump; the oil pump motor is used for providing power for the oil pump motor, communicating with the HCU through LIN signals, feeding back the collected state signals of the electric oil pump integrated system to the HCU, and controlling the electric oil pump to provide oil liquid as a cooling medium for the hybrid gearbox in the working condition of-30 ℃ to 145 ℃ according to the control instruction of the HCU.

The publication No. CN 209627162U is named as an utility model patent of an integrated driver main board structure and a pump formed by the integrated driver main board structure. An integrated driver motherboard structure and pump composed thereof are disclosed. The integrated driver main board structure is connected with the stator assembly, the integrated driver main board structure and a pump formed by the integrated driver main board structure comprise a junction box, a junction box cover and an electric connection assembly, one end of the junction box is axially connected with a stator shell of the stator assembly, and the other end of the junction box is connected with the junction box cover, and the integrated driver main board structure is characterized in that: an integrated driver main board is arranged in the junction box, and a driving circuit unit and a display and control unit are integrated on the integrated driver main board. The integrated driver is integrated with the driving circuit unit and the display and control unit on the main board, is simple in arrangement and easy to assemble, and meets the requirements of most application occasions.

Although the above prior art publications relate to a pump driving control system or a control method, no related design scheme is proposed for the integrated structural design thereof, and thus it is of great importance in the art to provide an integrated pump driving unit.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides an integrated pump driving unit which comprises a controller, a motor, a speed reducer and a hydraulic pump, wherein the speed reducer is provided with an output shaft connected with the hydraulic pump, a shell of the motor is provided with a mounting platform for integrally mounting the shell of the controller, and the controller is electrically connected with the motor through a copper bar and a motor winding wire.

Further, the axis of the mounting platform is parallel to that of the output shaft, and the controller is arranged on the mounting platform and then positioned on the lateral direction of the motor shaft.

Or the mounting platform is perpendicular to the axis of the output shaft, and the controller is arranged on the mounting platform and then is positioned in the same axial direction of the motor.

Further, the front end cover and the rear end cover of the motor are respectively provided with a pair of supporting feet, the four supporting feet form an installation platform, and the lower shell of the controller is installed on the supporting feet.

Further, a flange which is matched and connected with the support leg is arranged around the lower shell of the controller, the lower shell is fixedly arranged on the support leg through bolts, and the upper shell is covered and fixedly arranged on the lower shell.

Further, the lower shell is provided with vertical heat dissipation grids, and the heat dissipation grids are distributed in clearance spaces formed by the support legs, the lower shell and the motor shell.

Or, the lower shell of the controller and the rear end cover of the motor are integrated into a whole to form a mounting platform, and the upper shell of the controller is covered and fixedly mounted on the mounting platform.

Further, the upper shell of the controller is provided with a control wire harness connecting piece, the lower shell is provided with a power wire connecting piece, the direction of leading out the control wire harness is perpendicular to the output shaft, and the direction of leading out the power wire is parallel to the output shaft.

Further, a control wire harness connecting piece and a power wire connecting piece are arranged on the lower shell of the controller, and the control wire harness leading-out direction and the power wire leading-out direction are parallel to the output shaft.

Further, a sealing cover for sealing the copper bars and the motor winding wires is arranged on the lower shell of the controller.

Compared with the prior art, the technical scheme of the utility model has the following beneficial effects: the integrated pump driving unit provided by the utility model utilizes the shell of the motor to carry out integrated connection and installation of the controller, improves the integration degree of the pump driving unit, saves the installation space, can be applied to a special narrow space environment, saves the manufacturing cost and simplifies the installation steps. The copper bars are adopted to connect the output end of the controller and the input end of the motor, so that the connection of a longer switching wire harness is avoided, the reliability of electrical connection is improved, and the integration level is improved.

Drawings

Fig. 1: first structural diagram of the first embodiment;

fig. 2: the first embodiment is a second structural schematic diagram;

fig. 3: a third structural schematic diagram of the first embodiment;

fig. 4: a structural diagram of the first embodiment is shown in the fourth embodiment;

fig. 5: fifth structural diagram of the first embodiment;

fig. 6: a first structural diagram of the second embodiment;

fig. 7: a second embodiment is a second structural schematic diagram;

fig. 8: fig. 1 is a partially enlarged view.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. 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.

An integrated pump driving unit comprises a controller 1, a motor 2, a speed reducer 3 and a hydraulic pump, wherein the speed reducer 3 is provided with an output shaft 24 (not shown in a hydraulic pump diagram) connected with the hydraulic pump, a shell of the motor 2 is provided with a mounting platform for integrally mounting the shell of the controller 1, and the controller 1 and the motor 2 are electrically connected through a copper bar 14 and a motor winding wire 25. In this embodiment, the housing of the motor 2 and the housing of the controller 1 are integrated, so that the housing of the motor 2 provides a mounting platform for the controller 1, and a connecting harness between the controller and the motor in the prior art is electrically connected with the copper bar 14, so that the integration degree is improved, the occupied space is smaller, and the mounting is more convenient. Two controller and motor integrated structural design embodiments are provided below for specific illustration:

embodiment one: the controller is integrated with the motor shaft side, and the embodiment can enable the motor output axial space of the controller and the motor shaft side to be smaller, so that the controller and the motor shaft side are suitable for application scenes in which the axial space is relatively narrow but the height space of the motor shaft side is relatively rich, and the motor shaft side is particularly shown in figures 1-5.

In this embodiment the mounting platform is parallel to the axis of the output shaft 24 and the controller 1 is mounted on the mounting platform and located axially to the motor 2.

Specifically, the front end cover 21 and the rear end cover 22 of the motor 2 are respectively provided with a pair of legs 23, four legs form a mounting platform, and the lower housing 11 of the controller 1 is mounted on the legs 23. Around the lower housing 11 of the controller 1, there is a flange 101 which is connected to the leg 23 in a fitting manner, the lower housing 11 is fixedly mounted to the leg 23 by a bolt, and the upper housing 12 is covered and fixedly mounted to the lower housing 11. The support legs 23 are in this embodiment integrally formed with the front end cover 21 and the rear end cover 22 of the motor 2, and after the motor end cover is assembled, the top parts of the four support legs 23 have the same mounting plane to form a mounting platform. The lower housing 11 of the controller 1 is then bolted between the bolts and the flange 101, fixedly mounting the controller 1 on the legs 23. The flange 101 is integrally formed with the lower case 11 of the controller 1, and the protruding remaining case 11 and the upper case 12 are capped, so that the controller 1 can be directly integrally mounted on the axial side of the case of the motor 2 by bolting the lower case 11. The design of the legs 23 not only provides an integrated mounting platform, but the four separate legs also have a lighter weight and save material costs than an integral mounting platform.

In addition, the four supporting legs 23 are integrally formed in the embodiment, the supporting legs 23 have a certain height, and the controller 1 is mounted on the supporting legs and has a certain clearance with the motor shell, so that the assembly is facilitated, and a certain accommodating space can be provided for the irregular surface of the controller shell. The lower housing 11 has a vertical heat-dissipating grill 13, and the heat-dissipating grill 13 is distributed in a clearance space formed by the legs 23, the lower housing 11, and the housing of the motor 2. This structural design also further optimizes the space occupation, utilizing the accommodation space between the feet 23 and the housing of the motor 2.

Based on the above-described integrated structural design, the respective harness lead-out directions of the controller 1 and the motor 2 are also particularly optimized to better utilize the space on the peripheral side of the pump drive unit. Specifically, the upper casing 12 of the controller 1 is provided with a control wire harness connector 16, the lower casing 11 is provided with a power wire connector 17, the control wire harness extraction direction is perpendicular to the output shaft 24, and the power wire extraction direction is parallel to the output shaft 24. Since this embodiment is generally suitable for application scenarios where the motor shaft side of the altitude space is relatively rich, it is more reasonable to design the control harness extraction direction perpendicular to the output shaft 24.

Embodiment two: the controller and the motor are coaxially integrated, and the embodiment ensures that the motor shaft side of the height space is smaller after the controller and the motor are integrated, so that the motor is suitable for application scenes in which the motor shaft side of the height space is relatively narrow but the axial space is relatively rich, and can be particularly shown in figures 6-8.

Specifically, the lower housing 11 of the controller 1 and the rear end cover 22 of the motor 2 are integrated into a whole to form a mounting platform, and the upper housing 12 of the controller 1 is covered and fixedly mounted on the mounting platform. In this embodiment, the lower case 11 of the controller 1 and the rear cover 22 of the motor 2 are integrally designed to use the axial space of the pump drive unit.

Because the length and width dimensions of the casing of the controller 1 are larger than those of the casing of the motor, after coaxial integration, the casing of the controller 1 has a certain available space along the axial direction of the motor. In this embodiment, the space is used to optimally design the trend of the electrical connection harness: the lower shell 11 of the controller 1 is provided with a control wire harness connecting piece 16 and a power wire connecting piece 17, and the control wire harness drawing direction and the power wire drawing direction are parallel to the output shaft 24. The wire harness utilizes the largest outline space of the integrated pump driving unit, and does not occupy extra space.

The copper bar 14 and the motor winding wire 25 are electrically connected in the two embodiments, the copper bar 14 extends vertically downwards into the motor housing along the lower housing 11 of the controller, the copper bar 14 and the motor winding wire 25 can be fixedly connected through bolts, and the sealing cover 15 is plugged with the lower housing 11 and the motor housing through bolts, so that the electrical connection is completed and the sealing reliability is ensured.

The two embodiments can be flexibly arranged according to the spatial characteristics of the practical application scene, so that the integrated pump driving unit provided by the embodiment has stronger spatial applicability.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an integrated pump drive unit, includes controller (1), motor (2), speed reducer (3), hydraulic pump, and speed reducer (3) have output shaft (24) of connecting the hydraulic pump, and its characterized in that has the mounting platform that is used for integrated installation controller (1) casing on the casing of motor (2), and controller (1) and motor (2) pass through copper bar (14) and motor winding line (25) electric connection.

2. An integrated pump drive unit according to claim 1, wherein the mounting platform and the output shaft (24) are axially parallel, and the controller (1) is mounted on the mounting platform and located axially to the motor (2).

3. An integrated pump drive unit according to claim 1, wherein the mounting platform is perpendicular to the axis of the output shaft (24), and the controller (1) is mounted on the mounting platform and then coaxially located with the motor (2).

4. An integrated pump drive unit according to claim 2, characterized in that the front end cap (21) and the rear end cap (22) of the motor (2) are provided with a pair of legs (23), respectively, four legs constituting the mounting platform, and the lower housing (11) of the controller (1) is mounted on the legs (23).

5. An integrated pump drive unit according to claim 4, characterized in that the lower housing (11) of the controller (1) is provided with a flange (101) around which the legs (23) are connected in a mating manner, the lower housing (11) is fixedly mounted on the legs (23) by bolts, and the upper housing (12) is covered and fixedly mounted on the lower housing (11).

6. An integrated pump drive unit according to claim 5, characterized in that the lower housing (11) has a vertical heat-dissipating grid (13), the heat-dissipating grid (13) being distributed in the interstitial space formed by the legs (23), the lower housing (11), the housing of the motor (2).

7. An integrated pump drive unit according to claim 3, characterized in that the lower housing (11) of the controller (1) and the rear end cap (22) of the motor (2) are integrated to form a mounting platform, and the upper housing (12) of the controller (1) is covered and fixedly mounted on the mounting platform.

8. An integrated pump drive unit according to claim 3, characterized in that the upper housing (12) of the controller (1) is provided with a control harness connector (16), the lower housing (11) is provided with a power supply wire connector (17), the control harness lead-out direction is perpendicular to the output shaft (24), and the power supply wire lead-out direction is parallel to the output shaft (24).

9. An integrated pump drive unit according to claim 6, characterized in that the lower housing (11) of the controller (1) is provided with a control harness connector (16) and a power cord connector (17), and the control harness extraction direction and the power cord extraction direction are parallel to the output shaft (24).

10. An integrated pump drive unit according to claim 6 or 7, characterized in that the lower housing (11) of the controller is provided with a sealing cover (15) for sealing off the copper bars (14) and the motor winding wires (25).