CN220289674U - Traction motor test device - Google Patents

Abstract

The utility model relates to the technical field of test equipment, and discloses a traction motor test device which comprises a test bed, a first support assembly and a second support assembly. The first support assembly is arranged on the test bed and used for installing the tested motor and carrying out no-load test on the tested motor. The second support assembly is movably arranged on the test bed and used for installing the test accompanying motor, and the second support assembly can move to a preset position on the test bed along a preset direction so that the test accompanying motor is in transmission connection with the tested motor to finish the load test of the tested motor. After the test is finished, the connection between the accompanying motor and the tested motor is disconnected, and then the second support assembly is moved to be in place, so that no-load test of the next tested motor is not hindered. The traction motor test device can be used for testing the no-load performance of the tested motor and the load performance of the tested motor, can be used for completing two test tests, can effectively improve the overhaul efficiency of the tested motor and reduce the overhaul cost.

Description

Traction motor test device

Technical Field

The utility model relates to the technical field of test equipment, in particular to a traction motor test device.

Background

Locomotives such as rail trains and electric automobiles are driven to operate by traction motors, and when the locomotives are subjected to regular overhaul and maintenance, the traction motors are detached for overhaul and test so as to judge whether the operation parameters of the traction motors meet the requirements or not and ensure the operation safety of the locomotives. Specifically, after insulation and phase sequence detection are performed on the traction motor, no-load and load performance of the motor also needs to be tested.

The motor test bed in the prior art can only carry out no-load test alone or carry out load test alone, so that no-load test and load test of the traction motor are required to be carried out on different test beds, overhaul and maintenance of the traction motor are inconvenient, overhaul efficiency is low, and overhaul cost is high.

Therefore, there is a need for a traction motor test apparatus that solves the above-mentioned problems.

Disclosure of Invention

Based on the problems, the utility model aims to provide the traction motor test device which can carry out no-load test and load test of the traction motor, effectively improve the maintenance efficiency and reduce the maintenance cost.

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

provided is a traction motor test device including:

a test bed;

the first support assembly is arranged on the test bed and used for installing a tested motor;

the second support assembly is movably arranged on the test bed and used for installing the test accompanying motor, and the second support assembly can move to a preset position on the test bed along a preset direction so that the test accompanying motor is in transmission connection with the tested motor.

As a preferable scheme of the traction motor test device, the traction motor test device further comprises a driving assembly arranged on the test bed, wherein the output end of the driving assembly is connected with the second support assembly and is used for driving the second support assembly to move along the preset direction so as to be close to or far away from the first support assembly.

As a preferable scheme of the traction motor test device, the driving assembly comprises a rotary driving piece, a transmission assembly, a screw shaft and a nut seat which are in threaded connection, wherein the nut seat is fixed on the second support assembly, and the output end of the rotary driving piece is in transmission connection with the screw shaft through the transmission assembly.

As a preferable scheme of the traction motor test device, the transmission assembly comprises a speed reducing mechanism, a bearing seat and a first coupler positioned in the bearing seat, one end of the screw shaft, which is far away from the second bearing seat assembly, penetrates into the bearing seat and is rotationally connected with the bearing seat through a bearing, the output end of the rotary driving piece is connected with the input shaft of the speed reducing mechanism, and the output shaft of the speed reducing mechanism is connected with the screw shaft through the first coupler.

As a preferable mode of the traction motor test device, the traction motor test device further comprises a second coupler, and the accompanying test motor is in transmission connection with the tested motor through the second coupler.

As a preferable scheme of the traction motor test device, the test stand is provided with a support, a protective cover is arranged on the support, and the second coupling is positioned in the protective cover.

As a preferable scheme of the traction motor test device, the test bed is provided with a chute extending along the preset direction, the bottom of the second support assembly is provided with a guide rail, and the guide rail is clamped into the chute and is in sliding fit with the chute.

As a preferable scheme of the traction motor test device, at least two sliding grooves are formed in the test bed, at least two guide rails are arranged at the bottom of the second support assembly, the at least two guide rails are in one-to-one correspondence with the at least two sliding grooves, the cross section shapes of the at least two sliding grooves are different, and the cross section shape of the guide rails is the same as the cross section shape of the corresponding sliding grooves.

As a preferable scheme of the traction motor test device, the first support assembly comprises a first bottom plate and a first vertical plate arranged on the first bottom plate, the first bottom plate is fixed on the test bed, and the tested motor is detachably arranged on the first vertical plate.

As the preferable scheme of the traction motor test device, the second support assembly comprises a second bottom plate and a second vertical plate arranged on the second bottom plate, the second bottom plate is in sliding connection with the test bed, and the accompanying motor is detachably arranged on the second vertical plate.

The beneficial effects of the utility model are as follows:

when the traction motor test device provided by the utility model is used for carrying out no-load test on the tested motor, the tested motor is only required to be mounted on the first support assembly, then the test power supply is connected with the tested motor, the tested motor is started to run, various parameters (such as voltage, current, frequency, power, rotating speed, temperature and the like) of the tested motor are measured and recorded, and whether the no-load performance of the tested motor meets the requirement can be obtained by comparing the various parameters. When the load test is carried out on the tested motor, the tested motor is mounted to the first support assembly, the accompanying motor is mounted to the second support assembly, then the second support assembly is driven to move along the preset direction, the accompanying motor is made to be close to the tested motor, and after the accompanying motor moves to the preset position along with the second support assembly, the accompanying motor is connected with the tested motor in a transmission mode. And then respectively connecting test power supplies to the tested motor and the accompanying motor, starting the tested motor to drive the accompanying motor to operate, and respectively measuring and recording various parameters of the tested motor and the accompanying motor during the operation period to judge whether the load performance of the tested motor meets the requirements. And after the test is finished, the connection between the accompanying motor and the tested motor is disconnected, and then the second support assembly is moved to be in place, so that no-load test of the next tested motor is not hindered. The traction motor test device can test the no-load performance of the tested motor and the load performance of the tested motor, can complete two test tests, can effectively improve the overhaul efficiency of the tested motor and reduce the overhaul cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following description will briefly explain the drawings needed in the description of the embodiments of the present utility model, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the contents of the embodiments of the present utility model and these drawings without inventive effort for those skilled in the art.

FIG. 1 is a front view of a traction motor test apparatus provided in an embodiment of the present utility model;

FIG. 2 is a top view of a traction motor test apparatus provided in accordance with an embodiment of the present utility model;

FIG. 3 is a left side view of a traction motor testing apparatus provided in accordance with an embodiment of the present utility model;

FIG. 4 is a right side view of a traction motor testing apparatus provided in accordance with an embodiment of the present utility model;

FIG. 5 is an enlarged view of a portion of FIG. 1 at A;

FIG. 6 is a top view of a drive assembly provided in accordance with an embodiment of the present utility model;

fig. 7 is a schematic view of a pillar and shield provided in accordance with an embodiment of the present utility model.

In the figure:

1-a test bed; 2-a first mount assembly; 3-a second mount assembly; 4-a drive assembly; 5-a second coupling;

11-a chute; 12-supporting columns; 13-a protective cover;

21-a first bottom plate; 22-a first riser; 23-a first support plate; 24-a first connection plate; 25-first reinforcement

A riser; 26-a first stiffener;

31-a second bottom plate; 32-a second riser; 33-a second support plate; 34-a second connection plate; 35-second reinforcement

A riser; 36-a second stiffener;

41-a rotary drive; 42-a transmission assembly; 43-a screw shaft; 44-a nut seat;

421-a reduction mechanism; 422-bearing block; 423-first coupling; 424-bearings;

4211-flange plate;

100-tested motor; 200-accompany test motor.

Detailed Description

In order to make the technical problems solved by the present utility model, the technical solutions adopted and the technical effects achieved more clear, the technical solutions of the embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments 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 fall within the scope of the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first position" and "second position" are two different positions.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixed or removable, for example; 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 will be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 7, the present embodiment provides a traction motor test apparatus, which can perform no-load test and load test of a traction motor, improve maintenance efficiency, and reduce maintenance cost. The traction motor test device comprises a test stand 1, a first support assembly 2 and a second support assembly 3.

Referring to fig. 1 and 2, a first support assembly 2 is disposed on a test stand 1 for mounting a motor 100 to be tested. The second support component 3 is movably arranged on the test stand 1 and is used for installing the test accompanying motor 200, and the second support component 3 can move to a preset position on the test stand 1 along a preset direction so as to enable the test accompanying motor 200 to be in transmission connection with the tested motor 100.

In the traction motor test device provided in this embodiment, when the tested motor 100 is in no-load test, the tested motor 100 is only required to be mounted on the first support assembly 2, then the test power supply is connected with the tested motor 100, the tested motor 100 is started to operate, various parameters (such as voltage, current, frequency, power, rotation speed, temperature, etc.) of the tested motor 100 are measured and recorded, and whether the no-load performance of the tested motor 100 meets the requirements can be obtained by comparing the various parameters. When the load test is carried out on the tested motor 100, the tested motor 100 is mounted to the first support assembly 2, the test accompanying motor 200 is mounted to the second support assembly 3, then the second support assembly 3 is driven to move along the preset direction, the test accompanying motor 200 is made to be close to the tested motor 100, and after the test accompanying motor 200 moves to the preset position along with the second support assembly 3, the test accompanying motor 200 is connected with the tested motor 100 in a transmission mode. And then respectively connecting test power supplies to the tested motor 100 and the accompanying motor 200, starting the tested motor 100, enabling the tested motor 100 to drive the accompanying motor 200 to operate, and respectively measuring and recording various parameters of the tested motor 100 and the accompanying motor 200 during the operation period to judge whether the load performance of the tested motor 100 meets the requirement. After the test is finished, the connection between the accompanying motor 200 and the tested motor 100 is disconnected, and then the second support assembly 3 is moved to be in place, so that no-load test of the next tested motor 100 is prevented.

That is, the traction motor test device can not only perform no-load performance test of the tested motor 100, but also perform load performance test of the tested motor 100, and the same device can complete two test tests, thereby effectively improving the maintenance efficiency of the tested motor 100 and reducing the maintenance cost.

Alternatively, referring to fig. 1 and 3, the first stand assembly 2 includes a first base plate 21 and a first standing plate 22 disposed on the first base plate 21, the first base plate 21 is fixed to the test stand 1 (for example, by bolting), and the tested motor 100 is detachably mounted on the first standing plate 22. In this embodiment, the tested motor 100 is suspended on the first vertical plate 22, so that the installation state of the tested motor 100 is the same as the installation state of the tested motor on the locomotive, and the accuracy of the test result is ensured. Illustratively, the test motor 100 is fastened to the first riser 22 by bolts.

Further, referring to fig. 3, a first support plate 23 vertically connected to the first bottom plate 21 is provided on the first bottom plate 21, a first connection plate 24 parallel to the first bottom plate 21 is provided at a top end of the first support plate 23, and the first vertical plate 22 is vertically fixed to the first connection plate 24. The first upright plate 22 and the first bottom plate 21 form an L-shaped structure, and the tested motor 100 is fixed on the first upright plate 22 and then positioned in a hollow area of the L-shaped structure. The overall structural strength of the first support assembly 2 can be guaranteed through the arrangement, so that the tested motor 100 can be stably supported and fixed, and the accuracy of a test result is guaranteed.

Further, a first reinforcing vertical plate 25 is disposed on a side of the first vertical plate 22 facing away from the tested motor 100, and a bottom end of the first reinforcing vertical plate 25 is fixedly connected with the first connecting plate 24, so as to increase the supporting strength of the first vertical plate 22. A plurality of first stiffening plates 26 are connected between the first bottom plate 21 and the first connecting plate 24 to enhance the connection strength between the first bottom plate 21 and the first connecting plate 24.

Alternatively, referring to fig. 1 and 4, the second support assembly 3 includes a second bottom plate 31 and a second vertical plate 32 disposed on the second bottom plate 31, the second bottom plate 31 is slidably connected to the test stand 1, and the test accompanying motor 200 is detachably mounted on the second vertical plate 32. The accompanying motor 200 is suspended on the second vertical plate 32, so that the accompanying motor 200 and the tested motor 100 can be at the same height, and the load test of the tested motor 100 is convenient. Illustratively, the accompanying motor 200 is fastened to the second vertical plate 32 by bolts, and is convenient to assemble and disassemble.

Further, referring to fig. 4, a second support plate 33 vertically connected to the second bottom plate 31 is provided on the second bottom plate 31, a second connection plate 34 parallel to the second bottom plate 31 is provided at the top end of the second support plate 33, and the second vertical plate 32 is vertically fixed to the second connection plate 34. The second vertical plate 32 and the second bottom plate 31 form an L-shaped structure, and the accompanying motor 200 is fixed on the second vertical plate 32 and then positioned in a hollow area of the L-shaped structure. The overall structural strength of the second support assembly 3 can be guaranteed through the arrangement, so that the accompanying motor 200 is stably supported and fixed, and the accuracy of a test result is guaranteed.

Further, a second reinforcing vertical plate 35 is disposed on a side of the second vertical plate 32 facing away from the tested motor 100, and a bottom end of the second reinforcing vertical plate 35 is fixedly connected with the second connecting plate 34, so as to increase the supporting strength of the second vertical plate 32. A plurality of second stiffening plates 36 are connected between the second bottom plate 31 and the second connecting plate 34 to enhance the connection strength of the second bottom plate 31 and the second connecting plate 34.

Optionally, referring to fig. 1 and 2, the traction motor testing device further includes a driving assembly 4 disposed on the test stand 1, and an output end of the driving assembly 4 is connected to the second support assembly 3, for driving the second support assembly 3 to move along a preset direction so as to be close to or far away from the first support assembly 2. In this embodiment, the preset direction is the length direction of the test stand 1. In the initial state, the second support assembly 3 is far away from the first support assembly 2, and a sufficient distance is kept between the second support assembly 3 and the first support assembly 2, so that the second support assembly 3 does not interfere with the no-load test of the tested motor 100 on the first support assembly 2. When the load test of the tested motor 100 is required, the driving assembly 4 is started to drive the second support assembly 3 to move to the preset position in the direction close to the first support assembly 2, so that the accompanying motor 200 can be in transmission connection with the tested motor 100, and the load test of the tested motor 100 can be performed. After the test is finished, the second support assembly 3 is driven by the driving assembly 4 to move to the initial position in the direction away from the first support assembly 2.

The second support assembly 3 can be conveniently controlled to move by the driving assembly 4, the position of the accompanying motor 200 is adjusted, and the requirements of no-load test and load test of the tested motor 100 are met.

In this embodiment, referring to fig. 5 and 6, the driving assembly 4 includes a rotary driving member 41, a transmission assembly 42, and a screw shaft 43 and a nut seat 44 in threaded connection, where the nut seat 44 is fixed on the second support assembly 3, and an output end of the rotary driving member 41 is in transmission connection with the screw shaft 43 through the transmission assembly 42. In this embodiment, the nut seat 44 is mounted and fixed on the second support plate 33 of the second support assembly 3 (as shown in fig. 1 and 2). The rotary driving piece 41 drives the screw shaft 43 to rotate through the transmission assembly 42, so that the nut seat 44 moves linearly relative to the screw shaft 43, and the second support assembly 3 is driven to move on the test bed 1. The cooperation of the screw shaft 43 and the nut seat 44 can more precisely control the moving stroke of the second support assembly 3, thereby accurately controlling the distance between the accompanying motor 200 and the tested motor 100 and facilitating the subsequent connection operation.

In other embodiments, the driving assembly 4 may be a linear driving member such as an air cylinder, so long as the second support assembly 3 can be driven to linearly reciprocate on the test stand 1.

With continued reference to fig. 5 and 6, the transmission assembly 42 optionally includes a reduction mechanism 421, a bearing block 422, and a first coupling 423 disposed in the bearing block 422, where an end of the screw shaft 43 remote from the second support assembly 3 penetrates the bearing block 422 and is rotatably connected to the bearing block 422 through a bearing 424, and an output end of the rotary driving member 41 is connected to an input shaft of the reduction mechanism 421, and an output shaft of the reduction mechanism 421 is connected to the screw shaft 43 through the first coupling 423. The bearing seat 422 is fastened to the test stand 1 by bolts, the speed reducing mechanism 421 is fixedly connected to the bearing seat 422 by a flange plate 4211, and an output shaft of the speed reducing mechanism 421 extends into the bearing seat 422 and is positioned on the same axis as the screw shaft 43. Illustratively, the first coupling 423 is an elastic pin tooth coupling, the reduction mechanism 421 is a motor reducer, and the reduction is achieved through a gear set.

Optionally, referring to fig. 1 and 2, the traction motor test apparatus further includes a second coupling 5, and the test motor 200 is in transmission connection with the test motor 100 through the second coupling 5, so that the test motor 100 loads the test motor 200 to run, and the load test of the test motor 100 is completed.

Further, referring to fig. 1 and 7, the test stand 1 is provided with a support column 12, a protective cover 13 is mounted on the support column 12, and the second coupling 5 is located in the protective cover 13. The support column 12 is arranged to enable the second coupler 5 to be located at the same height as the tested motor 100 and the accompanying motor 200, so that connection operation is facilitated. The protective cover 13 can cover the second coupling 5, so that the test safety is improved.

Optionally, referring to fig. 3 and 4, the test stand 1 is provided with a chute 11 extending along a preset direction, and the bottom of the second support assembly 3 is provided with a guide rail (not shown) that is snapped into the chute 11 and slidingly engages with the chute 11. In this embodiment, the guide rail is disposed at the bottom of the second bottom plate 31, and the cooperation between the guide rail and the chute 11 can ensure that the second support assembly 3 always moves along the preset direction, so as to improve the movement stability of the second support assembly 3.

Optionally, at least two sliding grooves 11 are arranged on the test stand 1, at least two guide rails are arranged at the bottom of the second support assembly 3, the at least two guide rails are in one-to-one correspondence with the at least two sliding grooves 11, the cross section shapes of the at least two sliding grooves 11 are different, and the cross section shapes of the guide rails are identical to the cross section shapes of the corresponding sliding grooves 11.

In this embodiment, as shown in fig. 3 and fig. 4, two sliding grooves 11 are provided, corresponding two guiding rails are provided, one of the sliding grooves 11 is a rectangular groove, the other sliding groove 11 is a V-shaped groove, and when vertical load is applied, the two sliding grooves are matched with the V-shaped guiding rails, and after abrasion, the two sliding grooves can be automatically compensated, no gap is generated, and guiding precision can be ensured. The rectangular groove and the rectangular guide rail are matched to guide and bear the weight of the second support assembly 3, so that the movement stability of the second support assembly 3 is ensured.

In other embodiments, two rectangular grooves and one V-groove may be provided, not limited to the number recited in this embodiment.

In a further alternative embodiment, one of the two guide rails can also be designed as a planar guide rail and the other as a V-shaped guide rail, and the two slide grooves 11 are respectively a planar groove and a V-shaped groove.

Note that the above is only a preferred embodiment of the present utility model and the technical principle applied. It will be understood by those skilled in the art that the present utility model is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the utility model. Therefore, while the utility model has been described in connection with the above embodiments, the utility model is not limited to the embodiments, but may be embodied in many other equivalent forms without departing from the spirit or scope of the utility model, which is set forth in the following claims.

Claims (10)

1. Traction motor test device, its characterized in that includes:

a test stand (1);

the first support assembly (2) is arranged on the test bed (1) and is used for installing a tested motor (100);

the second support assembly (3), second support assembly (3) movably set up in test bench (1) for install and accompany test motor (200), second support assembly (3) can be in on test bench (1) along predetermineeing the direction and remove to predetermineeing the position, so that accompany test motor (200) with test motor (100) transmission connection.

2. Traction motor test apparatus according to claim 1, further comprising a drive assembly (4) arranged on the test bench (1), the output end of the drive assembly (4) being connected to the second support assembly (3) for driving the second support assembly (3) to move in the preset direction to approach or depart from the first support assembly (2).

3. Traction motor test apparatus according to claim 2, characterized in that the drive assembly (4) comprises a rotary drive (41), a transmission assembly (42) and a screw shaft (43) and a nut seat (44) in threaded connection, the nut seat (44) being fixed to the second support assembly (3), the output end of the rotary drive (41) being in transmission connection with the screw shaft (43) via the transmission assembly (42).

4. A traction motor test apparatus according to claim 3, wherein the transmission assembly (42) comprises a speed reducing mechanism (421), a bearing block (422) and a first coupling (423) located in the bearing block (422), one end of the screw shaft (43) away from the second bearing assembly (3) penetrates the bearing block (422) and is rotationally connected with the bearing block (422) through a bearing (424), an output end of the rotary driving member (41) is connected with an input shaft of the speed reducing mechanism (421), and an output shaft of the speed reducing mechanism (421) is connected with the screw shaft (43) through the first coupling (423).

5. The traction motor testing apparatus according to claim 1, further comprising a second coupling (5), wherein the test motor (200) is in driving connection with the tested motor (100) via the second coupling (5).

6. Traction motor test apparatus according to claim 5, characterized in that the test bench (1) is provided with a support (12), the support (12) is provided with a protective cover (13), and the second coupling (5) is located in the protective cover (13).

7. Traction motor test apparatus according to any one of claims 1-6, characterized in that the test bench (1) is provided with a chute (11) extending in the preset direction, the bottom of the second support assembly (3) is provided with a guide rail, which is snapped into the chute (11) and is in sliding fit with the chute (11).

8. The traction motor test apparatus according to claim 7, wherein at least two sliding grooves (11) are provided on the test stand (1), at least two guide rails are provided at the bottom of the second support assembly (3), at least two guide rails are in one-to-one correspondence with at least two sliding grooves (11), and the cross-sectional shapes of at least two sliding grooves (11) are different, and the cross-sectional shape of the guide rails is the same as the cross-sectional shape of the corresponding sliding groove (11).

9. The traction motor test apparatus according to any one of claims 1-5, wherein the first support assembly (2) comprises a first base plate (21) and a first riser (22) provided on the first base plate (21), the first base plate (21) is fixed to the test stand (1), and the tested motor (100) is detachably mounted on the first riser (22).

10. The traction motor test apparatus according to any one of claims 1-5, wherein the second support assembly (3) comprises a second bottom plate (31) and a second vertical plate (32) arranged on the second bottom plate (31), the second bottom plate (31) is slidably connected with the test stand (1), and the accompanying motor (200) is detachably mounted on the second vertical plate (32).