Motor twin trawling test structure with angle compensation

Abstract

The utility model discloses a motor twin trawling test structure with angle compensation, which comprises a test loading table, a loading motor is fixedly mounted on the test loading table, a position-adjustable support plate is mounted on the test loading table, and a tested motor is mounted on the support plate; an output shaft of the loading motor is provided with a first half coupling and a second half coupling connected to the first half coupling, and a torque sensor is arranged between the first half coupling and the second half coupling; an output shaft of the tested motor is inserted with an outer spline shaft, the outer spline shaft is connected with a third half coupling, the second half coupling and the third half coupling are both provided with switching structures, and a universal coupling is installed between the two switching structures; the device can be suitable for motor testing of the internal spline shaft and has certain angle compensation.

Description

Technical Field

[0001] The utility model relates to the technical field of motor load testing, in particular to a motor drag testing structure with angle compensation. Background Art

[0002] Common transportation equipment in coal mines, such as belt conveyors and elevators, and mining equipment such as tunneling machines and coal mining machines, are all powered by motors. Before installing the motor in related equipment, the load needs to be tested to avoid the risk of problems after installation and to ensure normal production.

[0003] Since some coal mining equipment uses motors with internal spline shafts as output shafts, existing test structures are all for testing motors that match the extension of cylindrical shafts. Therefore, it is necessary to improve the connection structure for motors with internal spline shafts. At the same time, since the same test structure is used, when different motors are tested, there may be a certain angle deviation in the axis after installation, so the connection structure is also required to have a certain degree of adaptability. Utility Model Content

[0004] 1. Technical issues

[0005] The utility model aims to provide a motor drag test structure with angle compensation, so as to solve the problem that the existing test structure improves the connection structure to be suitable for motor testing of internal spline shafts and has a certain angle compensation.

[0006] (II) Technical solution

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] A motor drag test structure with angle compensation comprises a test loading platform, on which a loading motor is fixedly mounted, on which a support plate with an adjustable position is mounted, on which a tested motor is mounted; a first half coupling and a second half coupling connected to the first half coupling are mounted on the output shaft of the loading motor, a torque sensor is arranged between the first half coupling and the second half coupling; an external spline shaft is inserted into the output shaft of the tested motor, a third half coupling is connected to the external spline shaft, adapter structures are mounted on the second half coupling and the third half coupling, and a universal coupling is mounted between the two adapter structures.

[0009] Preferably, the adapter structure includes an adapter plate connected to the universal coupling, the adapter plate is provided with tow rod mounting holes evenly distributed along the circumferential direction, pins are inserted into the mounting holes, and baffles for limiting the pins are installed on both side surfaces of the adapter plate.

[0010] Preferably, the pin is made of nylon.

[0011] Preferably, a semicircular key is provided in front of the external spline shaft, and a keyway cooperating with the semicircular key is provided on the third half coupling.

[0012] Preferably, the support plate comprises an adjustment plate mounted on the test loading platform and a mounting plate vertically fixed on the adjustment plate, and the mounting plate is used for mounting the motor to be tested.

[0013] Preferably, a strip hole is provided on the adjustment plate, and a fastener for locking on the test loading platform is provided in the strip hole.

[0014] Preferably, reinforcing ribs are provided between the mounting plate and the adjusting plate.

[0015] Preferably, a flange is detachably mounted on the mounting plate, the flange is provided with a plurality of fastening holes evenly distributed along the circumferential direction, and a plurality of first connecting holes concentric with the plurality of fastening holes, and the motor under test is provided with second connecting holes matching with the connecting holes.

[0016] (III) Beneficial effects

[0017] The first half coupling is connected to the output shaft of the loading motor, and the second half coupling is connected after the torque sensor is installed; the output shaft of the tested motor is connected through the external spline shaft, and the third half coupling is connected to the external spline shaft. A universal coupling is connected between the second half coupling and the third half coupling through a transfer structure, so that the angle can be adjusted to a certain deviation during the torque transmission process;

[0018] Specifically, during the test, a load is formed when the loading motor is running, and the tested motor forms a drag with the loading motor after running, so as to test the load condition of the tested motor, and the tested motor is tested by adjusting the torque change of the loading motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of a three-dimensional structure from a first viewing angle of an embodiment of the utility model;

[0020] Figure 2 A schematic diagram of a second perspective three-dimensional structure of an embodiment of the utility model;

[0021] Figure 3 for Figure 1 A schematic diagram of the partially enlarged structure at center A;

[0022] Figure 4 for Figure 2 A schematic diagram of the partially enlarged structure at B in the middle;

[0023] exist Figures 1 to 4 In the figure, the corresponding relationship between the component names or lines and the figure numbers is as follows:

[0024] Test loading platform 1, loading motor 2, support plate 3, adjustment plate 31, mounting plate 32, strip hole 33, fastener 34, reinforcing rib 35, flange 36, tested motor 4, first half coupling 5, second half coupling 6, torque sensor 7, external spline shaft 8, third half coupling 9, adapter structure 10, adapter plate 101, mounting hole 102, pin 103, baffle 104, universal coupling 11, semicircular key 12. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] See also Figure 1-Figure 4 As shown, in the embodiment of the utility model, a motor drag test structure with angle compensation is proposed, including a test loading platform 1, a loading motor 2 is fixedly installed on the test loading platform 1, a support plate 3 with an adjustable position is installed on the test loading platform 1, and a tested motor 4 is installed on the support plate 3. After the loading motor 2 and the tested motor 4 are installed correspondingly, it is only necessary to replace the tested motor 4 on the support plate 3 to realize batch testing. The specific test principle is that after the loading motor 2 is running, a torque that rotates opposite to the tested motor 4 is generated, and a drag is formed with the tested motor 4, and the load power condition of the tested motor 4 is tested after the running torque of the loading motor 2 is adjusted. The rated torque of the loading motor 2 is greater than the rated torque of the tested motor 4. It is rigidly connected during the test process, and the tested motor 4 has the form of a cylindrical shaft and an internal spline shaft, so it is necessary to optimize the connection structure to adapt to the two types of motors, and it can also be adaptively compensated when there is a certain axis angle deviation after installation.

[0027] Specifically, a first half coupling 5 and a second half coupling 6 connected to the first half coupling 5 are installed on the output shaft of the loading motor 2, and a torque sensor 7 is provided between the first half coupling 5 and the second half coupling 6. After the first half coupling 5 is connected to the output shaft of the loading motor 2, the torque sensor 7 is integrated and installed to detect the generated load torque, and the second half coupling 6 is connected to the torque sensor 7 to form a connection structure on the output shaft of the loading motor 2 that does not need to be disassembled.

[0028] At the same time, an external spline shaft 8 is inserted into the output shaft of the tested motor 4, and a third half coupling 9 is connected to the external spline shaft 8. The external spline shaft 8 is adapted to the tested motor 4 of the internal spline shaft for connection, and the third half coupling 9 is connected to the external spline shaft 8 to form a detachable connection structure.

[0029] The second half coupling 6 and the third half coupling 9 can be directly rigidly connected, but there may be a certain angle deviation between the axis and the loading motor 2 after the tested motor 4 is installed. Therefore, it is necessary to form an angle compensation on the connection without affecting the rigid connection of the test. Specifically, a transfer structure 10 is installed on the second half coupling 6 and the third half coupling 9, and a universal coupling 11 is installed between the two transfer structures 10. After the universal coupling 11 is installed through the transfer structure 10, angle compensation can be achieved through the action of the universal coupling 11 during the test, so as to adapt to the testing of different types of tested motors 4.

[0030] When testing the tested motor 4 of the cylindrical shaft, there is no need to use the external spline shaft 8, and the third half coupling 9 is directly connected to the cylindrical shaft of the tested motor 4. Therefore, a semicircular key 12 is provided in front of the external spline shaft 8, and a keyway matching the semicircular key 12 is provided on the third half coupling 9. A detachable spline connection is formed between the third half coupling 9 and the external spline shaft 8 through the semicircular key 12 and the keyway, and the spline connection can be disassembled or assembled for use.

[0031] Specifically, the adapter structure 10 includes an adapter plate 101 connected to the universal coupling 11, and the adapter plate 101 is provided with tow rod mounting holes 102 evenly distributed along the circumferential direction. A pin 103 is inserted into the mounting hole 102, and baffles 104 for limiting the pin 103 are installed on both side surfaces of the adapter plate 101. The adapter structure 10 is used to adapt to the connection between the universal coupling 11 and the half coupling, and can achieve torque buffering through the pin 103.

[0032] The pin 103 is made of nylon, which has good structural strength and a buffering effect.

[0033] Specifically, the support plate 3 is used to support and install the motor 4 under test, and specifically includes an adjustment plate 31 installed on the test loading platform 1 and a mounting plate 32 vertically fixed on the adjustment plate 31. The mounting plate 32 is used to install the motor 4 under test. The adjustment plate 31 can have a certain displacement adjustment relative to the test loading platform 1. Specifically, a strip hole 33 is opened on the adjustment plate 31, and a fastener 34 for locking on the test loading platform 1 is provided in the strip hole 33. The displacement of the adjustment plate 31 can be adjusted within a certain range through the strip hole 33. The fastener 34 is a bolt, and the strip hole 33 has an arrangement form in two directions.

[0034] In order to ensure the structural stability of the mounting plate 32 , a reinforcing rib 35 is provided between the mounting plate 32 and the adjusting plate 31 .

[0035] At the same time, a flange 36 is detachably mounted on the mounting plate 32, and the flange 36 is provided with a plurality of fastening holes evenly distributed along the circumferential direction, and a plurality of first connecting holes concentric with the plurality of fastening holes, and a second connecting hole matching the connecting hole is provided on the tested motor 4, and different types of tested motors 4 can be replaced by replacing the flange 36, and at the same time, the first connecting hole on the flange 36 is used to match the mounting plate 32 for fixation, and the second connecting hole is used to match the tested motor 4 for connection and fixation.

[0036] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0038] 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.

Claims

1. A motor drag test structure with angle compensation, characterized in that: The invention comprises a test loading platform (1), a loading motor (2) is fixedly mounted on the test loading platform (1), a support plate (3) with adjustable position is mounted on the test loading platform (1), and a motor (4) to be tested is mounted on the support plate (3); A first half coupling (5) and a second half coupling (6) connected to the first half coupling (5) are mounted on the output shaft of the loading motor (2), and a torque sensor (7) is provided between the first half coupling (5) and the second half coupling (6); An external spline shaft (8) is inserted into the output shaft of the tested motor (4), a third half coupling (9) is connected to the external spline shaft (8), a switching structure (10) is installed on both the second half coupling (6) and the third half coupling (9), and a universal coupling (11) is installed between the two switching structures (10).

2. The motor drag test structure with angle compensation according to claim 1, characterized in that: The adapter structure (10) comprises an adapter plate (101) connected to the universal coupling (11), the adapter plate (101) being provided with tow bar mounting holes (102) evenly distributed along the circumferential direction, pin shafts (103) being inserted into the mounting holes (102), and baffles (104) for limiting the pin shaft (103) are installed on both side surfaces of the adapter plate (101).

3. The motor drag test structure with angle compensation according to claim 2, characterized in that: The material of the pin shaft (103) is nylon.

4. The motor drag test structure with angle compensation according to claim 1, characterized in that: The outer spline shaft (8) is provided with a semicircular key (12) in front, and the third half coupling (9) is provided with a keyway matched with the semicircular key (12).

5. A motor drag test structure with angle compensation according to any one of claims 1 to 4, characterized in that: The support plate (3) comprises an adjustment plate (31) mounted on the test loading platform (1) and a mounting plate (32) vertically fixed on the adjustment plate (31); the mounting plate (32) is used for mounting the motor (4) to be tested.

6. The motor drag test structure with angle compensation according to claim 5, characterized in that: The adjustment plate (31) is provided with a strip-shaped hole (33), and a fastener (34) for locking onto the test loading platform (1) is provided in the strip-shaped hole (33).

7. The motor drag test structure with angle compensation according to claim 5, characterized in that: A reinforcing rib (35) is provided between the mounting plate (32) and the adjusting plate (31).

8. The motor drag test structure with angle compensation according to claim 5, characterized in that: A flange (36) is detachably mounted on the mounting plate (32), the flange (36) being provided with a plurality of fastening holes evenly distributed along the circumference, and a plurality of first connection holes concentric with the plurality of fastening holes, and a second connection hole matching the connection hole is provided on the motor (4) to be tested.

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