CN215953794U

CN215953794U - Motor testing device

Info

Publication number: CN215953794U
Application number: CN202122286834.1U
Authority: CN
Inventors: 马富东; 万鑫
Original assignee: Beijing Mecc Hydraulic Co ltd
Current assignee: Mcc Mike Tianjin Hydraulic Technology Co ltd
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-03-04
Anticipated expiration: 2031-09-22

Abstract

The utility model belongs to the technical field of engineering, and discloses a motor testing device which comprises a rack, a main shaft, a flywheel mechanism and a fixed flange, wherein a motor to be tested is arranged on the rack; the main shaft is connected with a motor to be tested, and the motor to be tested can drive the main shaft to rotate; the flywheel mechanism comprises a main flywheel and a flywheel assembly, and the main flywheel and the flywheel assembly are both arranged on the main shaft; the fixing flange sets up on the rack, and the main shaft passes fixing flange and connects in the motor that awaits measuring, and the flywheel subassembly can be connected with main flywheel or fixing flange selectively. The motor testing device provided by the utility model meets the performance testing requirements of various motors, is simple to operate and answer, occupies small space, is low in manufacturing cost and saves cost. And the flywheel assembly and the fixed flange are simple to disassemble and assemble, so that the labor is saved.

Description

Motor testing device

Technical Field

The utility model relates to the field of engineering machinery, in particular to a motor testing device.

Background

In the engineering machinery field, hydraulic motor is because of the difference of operational environment, and the operating mode that faces as the power supply is also different, sets up various complicated operating modes that flywheel testboard simulation motor met to the parameter of motor is tested, is convenient for follow-up structure to the motor improves. The flywheel test bench loads the tested motor to perform performance test by arranging the flywheels with different inertias. However, the flywheel used in the existing flywheel test bench has a single structure, and only a single inertia flywheel can be provided to test the loading performance of the motor, and only the motor with single performance can be tested. If a plurality of flywheel test tables are required to be arranged for testing the performance of various motors, the operation is complex, the occupied space is occupied, and the manufacturing cost is high, so that the serious resource waste is caused. And follow-up a plurality of flywheel testboards need the dismouting repeatedly, extravagant a large amount of manpowers.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a motor testing device which meets the performance test of motors of various models and is easy to operate and maintain.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a motor test apparatus comprising:

the motor to be tested is arranged on the rack;

the main shaft is connected to the motor to be tested;

the flywheel mechanism comprises a main flywheel and a flywheel assembly, and the main flywheel and the flywheel assembly are both arranged on the main shaft;

the fixing flange is arranged on the rack, the main shaft penetrates through the fixing flange to be connected with the motor to be tested, and the flywheel component can be selectively connected with the main flywheel or the fixing flange.

Preferably, the flywheel assembly comprises a first flywheel piece and a second flywheel piece, the main flywheel is located between the first flywheel piece and the second flywheel piece, and both the first flywheel piece and the second flywheel piece can be selectively connected with the main flywheel.

Preferably, the flywheel assembly further comprises a third flywheel piece, and the third flywheel piece is arranged on one side, far away from the main flywheel, of the first flywheel piece and can be selectively connected to the first flywheel piece.

Preferably, the flywheel assembly further comprises a connecting piece, and the third flywheel piece is connected to the first flywheel piece through the connecting piece.

Preferably, the motor testing device further comprises a dismounting assembly, and the dismounting assembly is used for dismounting the flywheel assembly.

Preferably, the dismouting subassembly includes screw rod and nut, the screw rod can pass the mounting flange with the flywheel subassembly, and threaded connection in the flywheel subassembly, nut threaded connection in the screw rod is kept away from the one end of flywheel subassembly, the nut can rotate so that the screw rod removes.

Preferably, the dismounting assembly further comprises a fixing piece, and the flywheel assembly is connected to the fixing flange through the fixing piece.

Preferably, the main shaft and the main flywheel are integrally formed.

Preferably, the motor testing device further comprises a coupler, and the spindle is connected to the motor to be tested through the coupler.

Preferably, the motor testing device further comprises a protective cover, and the protective cover is connected to the rack and covers the flywheel mechanism.

The utility model has the beneficial effects that:

according to the motor testing device, the motor to be tested is arranged on the rack, the loading performance of the motor to be tested is prepared to be tested, the flywheel component is connected with the fixed flange, only the main flywheel is used for testing, and the main flywheel can provide certain inertia for the testing of the motor to be tested; when the flywheel assembly is connected with the main flywheel, the provided inertia changes, different inertias are provided for testing the motors to be tested, and the loading performance of various motors to be tested can be tested. The motor testing device provided by the utility model meets the performance testing requirements of various motors, is simple to operate and answer, small in occupied space, low in manufacturing cost and cost, and simple in disassembly and assembly of the flywheel assembly and the fixed flange, so that the manpower is saved.

Drawings

FIG. 1 is a first perspective cross-sectional view of a motor testing apparatus according to an embodiment of the present invention;

fig. 2 is a second perspective cross-sectional view of a motor testing apparatus according to an embodiment of the present invention.

In the figure:

100. a motor to be tested;

1. a rack;

2. a main shaft;

3. a flywheel mechanism; 31. a main flywheel; 32. a flywheel assembly; 321. a first flywheel sheet; 322. a second flywheel sheet; 323. a third flywheel sheet; 33. a connecting member;

4. a fixed flange;

5. disassembling and assembling the components; 51. a screw; 52. a fixing member;

6. a coupling;

7. a protective cover;

8. a proximity switch;

9. a bearing;

10. and a bearing top cover.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

The embodiment provides a motor testing device, which belongs to the technical field of engineering, and as shown in fig. 1 and 2, the motor testing device comprises a rack 1, a main shaft 2, a flywheel mechanism 3 and a fixed flange 4, and a motor 100 to be tested is arranged on the rack 1; the main shaft 2 is connected to the motor 100 to be tested, and the motor 100 to be tested can drive the main shaft 2 to rotate; the flywheel mechanism 3 comprises a main flywheel 31 and a flywheel assembly 32, and the main flywheel 31 and the flywheel assembly 32 are both arranged on the main shaft 2; the fixed flange 4 is arranged on the stand 1, the main shaft 2 penetrates through the fixed flange 4 to be connected to the motor 100 to be tested, and the flywheel assembly 32 can be selectively connected with the main flywheel 31 or the fixed flange 4. Specifically, the fixing flange 4 and the bearing top cover 10 fix the bearing 9 on the rack 1, the main shaft 2 can penetrate through the bearing 9 to be connected to the motor 100 to be tested, and the bearing 9 plays a radial supporting role for the main shaft 2.

In the motor testing device provided by the embodiment, the motor 100 to be tested is arranged on the rack 1, the loading performance test of the motor 100 to be tested is prepared, the flywheel assembly 32 is connected with the fixed flange 4, the test is carried out only by using the main flywheel 31, and the main flywheel 31 can provide certain inertia for the test of the motor 100 to be tested; when the flywheel assembly 32 is connected with the main flywheel 31, the provided inertia changes, different inertias are provided for testing the motor 100 to be tested, and the loading performance of various motors 100 to be tested can be tested. The motor testing device provided by the embodiment meets the performance testing requirements of various motors, is simple to operate and answer, occupies small space, and is low in manufacturing cost and low in cost. And the flywheel assembly 32 and the fixed flange 4 are simple to disassemble and assemble, so that the labor is saved.

Specifically, as shown in fig. 1 and 2, the main shaft 2 and the main flywheel 31 are integrally provided. The main flywheel 31 and the main shaft 2 are integrally forged and then formed through turning, so that the strength of the main shaft 2 and the main flywheel 31 can be guaranteed, and the problems that the main shaft 2 is broken or a flywheel hole of the main flywheel 31 is damaged due to overload and the like are solved. The bearing 9 radially supports the main shaft 2 and the main flywheel 31.

Specifically, as shown in fig. 1 and 2, the motor testing apparatus further includes a coupler 6, and the spindle 2 is connected to the motor 100 to be tested through the coupler 6. More specifically, both ends of the main shaft 2 are connected to the motor 100 to be measured through two couplings 6, respectively.

Further, as shown in fig. 1 and 2, the flywheel assembly 32 includes a first flywheel plate 321 and a second flywheel plate 322, the main flywheel 31 is disposed between the first flywheel plate 321 and the second flywheel plate 322, and both the first flywheel plate 321 and the second flywheel plate 322 can be selectively connected with the main flywheel 31. During testing, the first flywheel plate 321 and the second flywheel plate 322 may be separately and separately connected to the main flywheel 31, so as to change the inertia provided by the motor testing device, or may be simultaneously connected to the main flywheel 31, so as to provide different inertias. It should be noted that, when the inertia provided by the first flywheel piece 321 or the second flywheel piece 322 is not needed, the first flywheel piece 321 or the second flywheel piece 322 is connected to the fixing flange 4, so that the first flywheel piece 321 or the second flywheel piece 322 is prevented from affecting the test result.

Specifically, as shown in fig. 1 and 2, the flywheel assembly 32 further includes a third flywheel plate 323, the third flywheel plate 323 is disposed on a side of the first flywheel plate 321 away from the main flywheel 31, and the third flywheel plate 323 can be selectively connected to the first flywheel plate 321. The present embodiment also provides a third flywheel plate 323 to change the inertia provided by the motor testing device to adapt to the performance testing needs of more motors. Likewise, the third flywheel tab 323 may be connected to the first flywheel tab 321, and the first flywheel tab 321 is connected to the spindle 2, thereby varying the inertia provided by the motor testing apparatus. The main flywheel 31, the first flywheel piece 321, the second flywheel piece 322, and the third flywheel piece 323 provided in the present embodiment have six combination modes, which are respectively: a main flywheel 31; the main flywheel 31 and the first flywheel piece 321; the main flywheel 31 and the second flywheel piece 322; the main flywheel 31, the first flywheel piece 321, and the second flywheel piece 322; the main flywheel 31, the first flywheel piece 321, and the third flywheel piece 323; a main flywheel 31, a first flywheel piece 321, a second flywheel piece 322, and a third flywheel piece 323.

More specifically, the first flywheel piece 321, the second flywheel piece 322 and the third flywheel piece 323 are matched with the main shaft 2 through shaft shoulders, so that the overall coaxiality of the flywheel is ensured, and the noise and the damage of the motor testing device caused by the fact that the first flywheel piece 321, the second flywheel piece 322 and the third flywheel piece 323 are not coaxial are reduced.

Specifically, as shown in fig. 1 and 2, the flywheel assembly 32 further includes a connecting member 33, and the third flywheel plate 323 is connected to the first flywheel plate 321 through the connecting member 33. In this embodiment, the connecting member 33 is a pin, and the pin drives the third flywheel plate 323 to rotate synchronously with the first flywheel plate 321 by resisting the shearing force and has no displacement. More specifically, in the present embodiment, the first flywheel tab 321 is connected to the main flywheel 31 by the connecting member 33, and the second flywheel tab 322 is connected to the main flywheel 31 by the connecting member 33.

Preferably, as shown in fig. 1, in this embodiment, a proximity switch 8 and a controller are further disposed at a position close to the fixed flange 4, the proximity switch 8 is electrically connected to the controller, the proximity switch 8 is used for detecting a distance between the flywheel assembly 32 and the fixed flange 4, and when any one of the first flywheel plate 321, the second flywheel plate 322, or the third flywheel plate 323 in the flywheel assembly 32 is close to the fixed flange 4, the controller controls the alarm unit to alarm to prompt a worker.

Further, as shown in fig. 2, the motor testing apparatus further includes a dismounting assembly 5, and the dismounting assembly 5 is used for dismounting the flywheel assembly 32. By means of a dismantling tool, the flywheel assembly 32 and the primary flywheel 31 can be separated and the flywheel assembly 32 can be attached to the fixing flange 4.

Specifically, as shown in fig. 1 and 2, the dismounting assembly 5 includes a screw 51 and a nut, the screw 51 can pass through the fixed flange 4 and the flywheel assembly 32 and is in threaded connection with the flywheel assembly 32, the nut is in threaded connection with one end of the screw 51 far away from the flywheel assembly 32, and the nut can rotate to enable the screw 51 to move. Taking the third flywheel plate 323 as an example of the attachment and detachment, a first unthreaded hole is formed in the bearing top cover 10, a second unthreaded hole is formed in the fixed flange 4 corresponding to the first unthreaded hole, and a first threaded hole is formed in the third flywheel plate 323. When the third flywheel piece 323 is detached, the connecting member 33 between the third flywheel piece 323 and the first flywheel piece 321 is detached, and then the screw 51 sequentially passes through the first unthreaded hole, the second unthreaded hole and the first threaded hole from the left to the right direction (i.e., from the left to the right direction as shown in fig. 2), and the screw 51 is connected to the first threaded hole in a threaded manner, so that the connection between the screw 51 and the third flywheel piece 323 is realized. The nut is tightened to the end of the screw 51 remote from the third flywheel blade 323, and the tester turns the nut, thereby moving the screw 51 from right to left (i.e., from right to left as viewed in fig. 2), and performing the disassembling operation of the third flywheel blade 323.

When the third flywheel tab 323 needs to be mounted, the screw 51 sequentially passes through the second threaded hole of the bearing top cover 10 and the third unthreaded hole of the fixing flange 4 from the left-to-right direction (i.e., from the left-to-right direction as shown in fig. 2), and the end of the screw 51 abuts against the end face of the third flywheel tab 323, so that the screw 51 is rotated to move the screw 51 to push the third flywheel tab 323, thereby pushing the third flywheel tab 323 to the mounting position, and fixing the first flywheel tab 321 and the third flywheel tab 323 by the connecting member 33. At this time, it should be noted that the screw 51 does not pass through the first threaded hole of the third flywheel plate 323. Because the third flywheel sheet 323 is heavy in weight and hard to move, and the dismounting tool is arranged, the effect of saving labor is achieved, and the testing efficiency is improved. The first flywheel piece 321 and the second flywheel piece 322 are assembled and disassembled in the same way as the third flywheel piece 323, and will not be described again.

Specifically, as shown in fig. 2, the dismounting assembly 5 further includes a fixing member 52, and the flywheel assembly 32 is connected to the fixing flange 4 through the fixing member 52. The fixing member 52 is provided to facilitate the connection between the fixing flange 4 and the first flywheel plate 321, the second flywheel plate 322 or the third flywheel plate 323 in the flywheel assembly 32. More specifically, the fixing member 52 is a screw.

Further, as shown in fig. 1 and 2, the motor testing apparatus further includes a protective cover 7, and the protective cover 7 is attached to the stage 1 and covers the flywheel mechanism 3. Because the main shaft 2 drives the flywheel mechanism 3 to rotate, in order to prevent the main flywheel 31, the first flywheel piece 321, the second flywheel piece 322 or the third flywheel piece 323 from flying out in the testing process, the protective cover 7 is arranged above the flywheel mechanism 3 to protect the testers.

In the description of the present embodiments, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In this embodiment, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the utility model. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A motor testing device, comprising:

the device comprises a rack (1), wherein a motor (100) to be tested is arranged on the rack (1);

the main shaft (2), the said main shaft (2) is connected to the said motor (100) to be measured;

the flywheel mechanism (3) comprises a main flywheel (31) and a flywheel assembly (32), and the main flywheel (31) and the flywheel assembly (32) are both arranged on the main shaft (2);

mounting flange (4), mounting flange (4) set up on rack (1), main shaft (2) pass mounting flange (4) connect in motor (100) await measuring, flywheel subassembly (32) can selectively with main flywheel (31) or mounting flange (4) are connected.

2. The motor testing device of claim 1, wherein the flywheel assembly (32) comprises a first flywheel plate (321) and a second flywheel plate (322), the primary flywheel (31) being located between the first flywheel plate (321) and the second flywheel plate (322), the first flywheel plate (321) and the second flywheel plate (322) each being selectively connectable with the primary flywheel (31).

3. The motor testing device of claim 2, wherein the flywheel assembly (32) further comprises a third flywheel plate (323), the third flywheel plate (323) being disposed on a side of the first flywheel plate (321) remote from the main flywheel (31) and being selectively connectable to the first flywheel plate (321).

4. The motor testing device of claim 3, wherein the flywheel assembly (32) further comprises a connector (33), the third flywheel plate (323) being connected to the first flywheel plate (321) by the connector (33).

5. The motor testing device of claim 1, further comprising a disassembly and assembly (5), wherein the disassembly and assembly (5) is used for disassembling and assembling the flywheel assembly (32).

6. The motor testing device according to claim 5, characterized in that the dismounting assembly (5) comprises a screw (51) and a nut, the screw (51) can pass through the fixing flange (4) and the flywheel assembly (32) and is in threaded connection with the flywheel assembly (32), the nut is in threaded connection with one end of the screw (51) far away from the flywheel assembly (32), and the nut can rotate to enable the screw (51) to move.

7. Motor testing device according to claim 6, characterized in that said dismounting assembly (5) further comprises a fixing member (52), said flywheel assembly (32) being connected to said fixing flange (4) by said fixing member (52).

8. Motor testing device according to claim 1, characterized in that the main shaft (2) and the main flywheel (31) are provided in one piece.

9. The motor testing device according to claim 1, further comprising a coupling (6), wherein the spindle (2) is connected to the motor (100) to be tested through the coupling (6).

10. The motor testing device according to claim 1, further comprising a protective cover (7), wherein the protective cover (7) is connected to the gantry (1) and covers over the flywheel mechanism (3).