Traction machine host moment testing device

Abstract

The utility model discloses a traction machine host moment testing device, which comprises a bottom frame, a traction machine and a support are arranged on the bottom frame, a traction wheel of the traction machine is connected with a first flange through a bolt, the first flange is connected with a static torque sensor through a first coupler and a second coupler, and the static torque sensor is connected with the traction wheel of the traction machine. The side, away from the first flange, of the static torque sensor is connected to the support through a second flange. The beneficial effects of the utility model are that when testing is carried out, load testing does not need to be carried out, testing is simple, and manpower and material resources are saved.

Description

Technical Field

[0001] The utility model belongs to the field of traction machines, and in particular relates to a testing device for the torque of a main engine of a traction machine. Background Art

[0002] At present, the main methods for testing the braking torque of the unilateral brake of the traction machine are the traction wheel hanging weight method, the external motor drag method and the stall current measurement method. The first method is inefficient and time-consuming and is suitable for situations where the output is not large. The second method is also inefficient and is suitable for dynamic testing and situations where the brake needs to meet the requirements after running-in. Finally, although the current method has high testing efficiency and can be integrated into the pre-shipment test system and tested together with other parameters, the torque value given by the current conversion has errors with the values ​​measured by the other two methods. Utility Model Content

[0003] The utility model aims to provide a testing device for the torque of a main engine of a traction machine.

[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0005] A testing device for the torque of a traction machine main engine comprises a base frame, on which a traction machine and a bracket are arranged, the traction wheel of the traction machine is connected to a first flange by bolts, the first flange is connected to a static torque sensor by a first coupling and a second coupling, and the side of the static torque sensor away from the first flange is connected to the bracket by a second flange.

[0006] Preferably, a plurality of strip grooves for bolts to pass through are provided in a circumferential array on the first flange, and the height of the bracket is adjustable.

[0007] Preferably, the base frame is provided with a plurality of mounting grooves for mounting the traction machine and the bracket, the cross section of the mounting groove is inverted T-shaped, and the bracket is provided with a connecting groove perpendicular to the mounting groove.

[0008] Preferably, the bracket includes an L-shaped connecting plate and a supporting plate for increasing strength, a movable plate is slidably provided on the connecting plate in a vertical direction, and the second flange is connected to the movable plate.

[0009] Preferably, a thread groove and a slide groove are provided on the movable plate along its height direction, a screw rod is threadedly connected in the thread groove, a slide rod is slidably arranged in the slide groove, and the screw rod and the slide rod both penetrate the movable plate and are rotatably connected to the connecting plate.

[0010] Preferably, the movable plate is provided with a plurality of through holes in a circular array for the bolts to pass through, and an opening is provided at the center of the plurality of through holes, and a laser emitter is provided at the opening.

[0011] The beneficial effects of the utility model are as follows: the relationship between the traction machine winding current and the traction machine output torque is verified by testing to prove the feasibility and accuracy of the current method for testing the traction machine force, thereby obtaining the braking torque of the unilateral brake and the braking force of the traction machine; no load test is required during the test, the test method is simple, and manpower and material resources are saved; during the test, the height of the sliding plate is adjusted by the laser emitted by the laser transmitter, so that the static torque sensor and the traction wheel have a higher concentricity. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model.

[0013] Figure 2 yes Figure 1 A is an enlarged schematic diagram.

[0014] Figure 3 It is a front view of the utility model.

[0015] Among them: base frame 10, traction machine 12, traction wheel 14, first flange 16, strip groove 17, first coupling 18, second shaft coupling 22, static torque sensor 24, second flange 26, bracket 28, connecting plate 30, support plate 32, movable plate 34, screw 36, slide rod 38, installation groove 40, connecting groove 42. DETAILED DESCRIPTION

[0016] The technical solution of this patent is further described in detail below in conjunction with specific implementation methods.

[0017] like Figures 1 to 3 As shown, a test device for the torque of a main engine of a traction machine of the utility model comprises a base frame 10, on which a traction machine 12 and a bracket 28 are arranged, a traction wheel 14 of the traction machine 12 is connected with a first flange 16 by bolts, the first flange 16 is connected with a static torque sensor 24 by a first coupling 18 and a second coupling 22, a side of the static torque sensor 24 away from the first flange 16 is connected to the bracket 28 by a second flange 26, and the first coupling 18 adopts a diaphragm coupling, which can absorb impact and play a buffering role;

[0018] The first flange 16 and the static torque sensor 24 are connected through the first coupling 18 and the second coupling 22. The static torque sensor 24 is connected with a display screen (not shown in the figure) to display the value. The torque of the traction machine 12 is obtained by the test device. During the test, all brakes are powered on and opened. Different current values ​​are applied to the traction machine 12 to be tested, and 25%, 50%, 75%, 100%, 125% current values ​​(ratio to the rated current) and corresponding torque values ​​A are measured and recorded as A1, A2, A3, A4, A5 respectively. Then, one brake is powered off, and the other brakes are powered on and opened. The current values ​​of 25%, 50%, 75%, 100%, 125% and the corresponding torque values ​​B are measured again and recorded as B1, B2, B3, B4, B5 respectively. The above two sets of data are corrected and compared, that is, the corresponding value of A is subtracted from the corresponding value of B, which is the torque of the main machine. In this way, the torque of the main machine corresponding to different currents is verified.

[0019] The first flange 16 is provided with a plurality of strip grooves 17 in a circumferential array for the bolts to pass through, and the height of the bracket 28 is adjustable;

[0020] Different traction machines 12 have different specifications. The strip grooves 17 can adapt to traction machines 12 of different diameters. For traction machines 12 of different specifications, the center of the first flange 16 installed on the traction wheel 14 has different heights above the ground. In order to ensure the concentricity of the first flange 16 and the static torque sensor 24, the height of the bracket 28 needs to be adjusted.

[0021] The base frame 10 is provided with a plurality of mounting grooves 40 for mounting the traction machine 12 and the bracket 28. The cross section of the mounting groove 40 is inverted T-shaped. The bracket 28 is provided with connecting grooves 42 perpendicular to the mounting grooves 40.

[0022] The width of the bottom of the mounting groove 40 is greater than the diameter of the bolt end and greater than the width of the top of the mounting groove 40, so that the bolt will not be separated from the mounting groove 40 when connected by bolts, and is used to fix the traction machine 12 and the bracket 28 with the nut. The connecting groove 42 is long and strip-shaped, so that the lateral position of the bracket 28 can be adjusted during installation so that it corresponds to the traction machine 12 in the horizontal direction, thereby ensuring the concentricity of the traction wheel 14 and the static torque sensor 24.

[0023] The bracket 28 includes an L-shaped connecting plate 30 and a supporting plate 32 for increasing strength. A movable plate 34 is slidably arranged on the connecting plate 30 in a vertical direction, and the second flange 26 is connected to the movable plate 34.

[0024] One side of the connecting plate 30 is connected to the base frame 10 and the other side is connected to the second flange 26. The supporting plate 32 is used to increase the overall strength of the bracket 28. The sliding of the movable plate 34 is used to adjust the height of the static torque sensor 24 to ensure the concentricity between the static torque sensor 24 and the traction wheel 14.

[0025] The movable plate 34 is provided with a thread groove and a slide groove along its height direction, a screw rod 36 is threadedly connected in the thread groove, a slide rod 38 is slidably arranged in the slide groove, and both the screw rod 36 and the slide rod 38 penetrate the movable plate 34 and are rotatably connected to the connecting plate 30;

[0026] Through the rotation of the screw rod 36 and the limiting of the movable plate 34 by the slide rod 38 , the movable plate 34 moves up and down along with the rotation of the screw rod 36 , thereby adjusting the height of the movable plate 34 .

[0027] The movable plate 34 is provided with a plurality of through holes in a circumferential array for the bolts to pass through, and an opening is provided at the center of the plurality of through holes, and a laser emitter is provided at the opening;

[0028] When aligning the concentricity, the housing of the laser transmitter is connected to the movable plate 34 by bolts, and the laser emitted from the laser transmitter passes through the opening and is emitted to the traction machine 12. Through continuous adjustment, the laser is emitted to the center of the traction wheel 14. Then the laser transmitter is disassembled and the second flange 26 is installed on the movable plate 34 by bolts to ensure the concentricity between the static torque sensor 24 and the traction wheel 14.

[0029] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0030] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A test device for the torque of a traction machine main engine, characterized in that: The invention comprises a base frame, on which a traction machine and a bracket are arranged, wherein the traction wheel of the traction machine is connected to a first flange by bolts, the first flange is connected to a static torque sensor by a first coupling and a second coupling, and the side of the static torque sensor away from the first flange is connected to the bracket by a second flange.

2. The traction machine main engine torque testing device according to claim 1 is characterized in that: The first flange is provided with a plurality of strip grooves in a circumferential array for the bolts to pass through, and the height of the bracket is adjustable.

3. The traction machine main engine torque testing device according to claim 1, characterized in that: The base frame is provided with a plurality of installation grooves for installing the traction machine and the bracket, the cross section of the installation groove is in an inverted T shape, and the bracket is provided with a connecting groove perpendicular to the installation groove.

4. The traction machine main engine torque testing device according to claim 2 is characterized in that: The bracket includes an L-shaped connecting plate and a supporting plate for increasing strength. A movable plate is slidably arranged on the connecting plate in a vertical direction, and the second flange is connected to the movable plate.

5. The traction machine main engine torque testing device according to claim 4, characterized in that: The movable plate is provided with a thread groove and a slide groove along its height direction, a screw rod is threadedly connected in the thread groove, a slide rod is slidably arranged in the slide groove, and the screw rod and the slide rod both penetrate the movable plate and are rotatably connected to the connecting plate.

6. The traction machine main engine torque testing device according to claim 4, characterized in that: The movable plate is provided with a plurality of through holes in a circular array for the bolts to pass through, and an opening is provided at the center of the plurality of through holes, and a laser emitter is provided at the opening.

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