Motor torque dynamic and static test equipment

Abstract

The utility model discloses motor torque dynamic and static test equipment, which comprises a workbench, a bottom plate, a telescopic guide rod, a cylinder seat, a telescopic cylinder, a push plate, a sliding table cylinder, a carrying table, an adaptive seat, a torsion tester, an adaptive shaft sleeve, a bracket, a transmission shaft and a magnetic powder brake, and is characterized in that the bottom plate is fixedly mounted at the bottom of the workbench, and the cylinder seat is fixedly mounted on the bottom plate; a cylinder body of the telescopic air cylinder is fixedly installed on the air cylinder seat. According to the equipment, the dynamic and static torques of the motor can be alternately tested through the braking effect of the magnetic powder brake, the test requirements of the dynamic and static torques of different types of motors can be met through the adaptive seat and the adaptive shaft sleeve, and the displacement efficiency of the adaptive seat can be improved through the telescopic air cylinder and the sliding table air cylinder; and the adaptive seat can be finely adjusted in the height direction through the matching effect of the supporting bolt and the locking bolt, and the problem that the stroke precision of the telescopic air cylinder is insufficient is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor testing, in particular to a motor torque dynamic and static testing device. Background Art

[0002] The dynamic operation rated torque and static start-stop torque of the motor are important parameters of its working performance. The dynamic operation rated torque is the maximum torque that maintains the operation of the motor. It is the torque that the motor can output for a long time under normal operation and is the basis of motor operation. The static start-stop torque is the maximum torque that the motor can maintain at zero speed, that is, the maximum torque that the motor can generate in the start-stop state. At present, the static torque of the motor is tested by braking the motor output shaft with a magnetic powder brake. Due to the large number of motor sizes and models, the existing test equipment has poor versatility. Different heights of motor bearing seats need to be selected according to different motor types to ensure that the sleeve of the motor output shaft torque tester is in a coaxial state. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a motor torque dynamic and static test device with high versatility.

[0004] In order to solve the above technical problems, the present invention is achieved through the following technical solutions: a motor torque dynamic and static testing equipment, including a workbench, a base plate, a telescopic guide rod, a cylinder seat, a telescopic cylinder, a push plate, a slide cylinder, a carrier, an adapter seat, a torque tester, an adapter sleeve, a bracket, a transmission shaft and a magnetic powder brake, the base plate is fixedly mounted on the bottom of the workbench, the cylinder seat is fixedly mounted on the base plate, the cylinder body of the telescopic cylinder is fixedly mounted on the cylinder seat, the upper and lower parts of the telescopic guide rod are fixedly connected to the push plate and the base plate respectively, the push plate is also fixedly connected to the piston rod of the telescopic cylinder, and the cylinder body of the slide cylinder is fixedly mounted on the base plate. The adapter seat is fixedly installed on the push plate, and the carrier is fixedly installed on the slide of the slide cylinder. The carrier is threadedly installed with a supporting bolt, and the adapter seat is placed on the supporting bolt. The adapter seat is fixedly connected to the carrier through a locking bolt. The torque tester, the bracket and the magnetic powder brake are all fixedly installed on the top of the workbench, and the adapter sleeve is fixedly installed on the right end of the test shaft of the torque tester. The transmission shaft is rotatably installed on the bracket through a ball bearing. The left and right ends of the transmission shaft are transmission-connected with the left end of the test shaft of the torque tester and the rotating shaft of the magnetic powder brake. A receiving groove is arranged on the top surface of the workbench, and the carrier is slidably installed in the receiving groove.

[0005] Furthermore, a cushion block is fixedly mounted on the bottom plate, and the lower end of the telescopic guide rod is fixedly mounted on the cushion block.

[0006] Furthermore, two guide rods are fixedly installed in the workbench, and the carrier is slidably installed on the guide rods.

[0007] Furthermore, the length dimension of the accommodating groove on the top surface of the workbench in the left-right direction is 1.5-2 times the length dimension of the carrier in the left-right direction.

[0008] Compared with the prior art, the benefits of the utility model are as follows: the equipment can alternately test the dynamic and static torque of the motor through the braking action of the magnetic powder brake, can meet the testing requirements of the dynamic and static torque of different types of motors through the adapter seat and the adapter sleeve, can improve the displacement efficiency of the adapter seat through the telescopic cylinder and the slide cylinder, and can fine-tune the height direction of the adapter seat through the cooperation of the support bolt and the locking bolt, thus compensating for the problem of insufficient stroke accuracy of the telescopic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The utility model is further described below in conjunction with the accompanying drawings.

[0010] Figure 1 It is a structural schematic diagram of the utility model.

[0011] Figure 2 yes Figure 1 Schematic diagram of the enlarged structure at M DETAILED DESCRIPTION

[0012] The utility model is described in detail below in conjunction with specific implementation methods:

[0013] like Figure 1 and Figure 2The motor torque dynamic and static testing equipment shown in the figure includes a workbench 1, a base plate 2, a telescopic guide rod 22, a cylinder seat 3, a telescopic cylinder 31, a push plate 4, a slide cylinder 41, a carrier 42, an adapter seat 43, a torque tester 5, an adapter sleeve 6, a bracket 7, a transmission shaft 71 and a magnetic powder brake 8. The base plate 2 is fixedly mounted on the bottom of the workbench 1, the cylinder seat 3 is fixedly mounted on the base plate 2, the cylinder body of the telescopic cylinder 31 is fixedly mounted on the cylinder seat 3, the upper and lower parts of the telescopic guide rod 22 are fixedly connected to the push plate 4 and the base plate 2 respectively, the push plate 4 is also fixedly connected to the piston rod of the telescopic cylinder 31, the cylinder body of the slide cylinder 41 is fixedly mounted on the push plate 4, the carrier 42 is fixedly mounted on the slide of the slide cylinder 41, the carrier 42 is screwed with a support bolt 44, and the adapter seat 43 Placed on the support bolt 44, the adapter seat 43 is fixedly connected to the carrier 42 by a locking bolt 45 to facilitate the disassembly and replacement of the adapter seat 43. The torque tester 5, the bracket 7 and the magnetic powder brake 8 are all fixedly installed on the top of the workbench 1. The right end of the test shaft of the torque tester 5 is fixedly installed with the adapter sleeve 6. The adapter sleeve 6 and the right end of the test shaft of the torque tester 5 are fixedly connected by a pin shaft. The pin shaft is radially plugged and installed on the adapter sleeve 6 and the right end of the test shaft to prevent the adapter sleeve 6 from being separated from the right end of the test shaft. The transmission shaft 71 is rotatably installed on the bracket 7 through a ball bearing. The left and right ends of the transmission shaft 71 are transmission-connected to the left end of the test shaft of the torque tester 5 and the rotating shaft of the magnetic powder brake 8. A receiving groove is provided on the top surface of the workbench 1, and the carrier 42 is slidably installed in the receiving groove.

[0014] A cushion block 21 is fixedly mounted on the bottom plate 2 , and the lower end of the telescopic guide rod 22 is fixedly mounted on the cushion block 21 , which can reduce the length of the telescopic guide rod 22 and further reduce the use cost of the telescopic guide rod 22 .

[0015] Two guide rods 11 are fixedly installed in the workbench 1, and the platform 42 is slidably installed on the guide rods 11. The platform 42 is provided with a longitudinal oblong hole matching the guide rods 11. The guide rods 11 are slidably installed in the longitudinal oblong hole. Through the guiding effect of the guide rods 11, the straightness of the platform 42 when moving left and right can be improved. The guide rods 11 limit the straightness of the platform 42 in the front-to-back direction, which can reduce the load shear force on the telescopic guide rod 22 and the telescopic cylinder 31 in the front-to-back direction.

[0016] The left-right length of the accommodating groove on the top surface of the workbench 1 is 1.6 times the left-right length of the carrier 42 to enable the left-right movement of the carrier 42 and facilitate the insertion, positioning or separation of the output shaft of the motor 9 under test and the adapter sleeve 6.

[0017] After the adapter seat 43 and adapter sleeve 6 suitable for the measured motor 9 and its output shaft are selected and fixedly installed, the measured motor 9 is fixedly installed on the adapter seat 43, and the telescopic cylinder 31 is started to drive the combination of the push plate 4, the slide cylinder 41, the carrier 42 and the adapter seat 43 to move up and down until the output shaft of the measured motor 9 and the adapter sleeve 6 are in a coaxial state. After placing a key in the keyway of the output shaft of the measured motor 9, the slide cylinder 41 is started to push the carrier 42, the adapter seat 43 and the measured motor 9 to move to the left, and the output shaft of the measured motor 9 and the key are embedded in the adapter sleeve 6. The output shaft of the measured motor 9 is connected to the adapter sleeve 6 through the key transmission. The measured motor 9 is started, and its output shaft drives the adapter sleeve 6, The test shaft, transmission shaft 71 and magnetic powder brake 8 shaft of the torque tester 5 rotate synchronously. When the motor 9 to be tested is started, the torque tester 5 tests its starting static torque. When the motor continues to run normally, the torque tester 5 tests its running dynamic torque. After the motor stops running, the magnetic powder brake 8 is started to limit the rotation of its shaft. At this time, the torque tester 5 tests its stopping static torque. An oblong hole in the front-to-back direction is provided on the adapter seat 43. The motor 9 to be tested is fixedly connected to the carrier 42 by a first bolt. The first bolt passes through the oblong hole in the front-to-back direction of the adapter seat 43. The position of the motor 9 to be tested in the front-to-back direction can be adjusted through the oblong hole in the front-to-back direction of the adapter seat 43.

Claims

1. A motor torque dynamic and static test equipment, characterized in that: The invention comprises a workbench (1), a base plate (2), a telescopic guide rod (22), a cylinder seat (3), a telescopic cylinder (31), a push plate (4), a slide cylinder (41), a carrier (42), an adapter seat (43), a torque tester (5), an adapter sleeve (6), a bracket (7), a transmission shaft (71) and a magnetic powder brake (8), wherein the base plate (2) is fixedly mounted on the bottom of the workbench (1), the cylinder seat (3) is fixedly mounted on the base plate (2), the cylinder body of the telescopic cylinder (31) is fixedly mounted on the cylinder seat (3), the upper and lower parts of the telescopic guide rod (22) are fixedly connected to the push plate (4) and the base plate (2) respectively, the push plate (4) is also fixedly connected to the piston rod of the telescopic cylinder (31), the cylinder body of the slide cylinder (41) is fixedly mounted on the push plate (4), and the carrier (4 2) is fixedly mounted on the slide of the slide cylinder (41), the carrier (42) is threadedly mounted with a support bolt (44), the adapter seat (43) is placed on the support bolt (44), the adapter seat (43) is fixedly connected to the carrier (42) through a locking bolt (45), the torque tester (5), the bracket (7) and the magnetic powder brake (8) are all fixedly mounted on the top of the workbench (1), the right end of the test shaft of the torque tester (5) is fixedly mounted with an adapter sleeve (6), the transmission shaft (71) is rotatably mounted on the bracket (7) through a ball bearing, the left and right ends of the transmission shaft (71) are transmission-connected with the left end of the test shaft of the torque tester (5) and the rotating shaft of the magnetic powder brake (8), the top surface of the workbench (1) is provided with a receiving groove, and the carrier (42) is slidably mounted in the receiving groove.

2. The motor torque dynamic and static test equipment according to claim 1, characterized in that: A cushion block (21) is fixedly mounted on the bottom plate (2), and a lower end of the telescopic guide rod (22) is fixedly mounted on the cushion block (21).

3. The motor torque dynamic and static test equipment according to claim 1, characterized in that: Two guide rods (11) are fixedly mounted inside the workbench (1), and the carrier (42) is slidably mounted on the guide rods (11).

4. The motor torque dynamic and static test equipment according to claim 1, characterized in that: The length dimension of the accommodating groove on the top surface of the workbench (1) in the left-right direction is 1.5 to 2 times the length dimension of the carrier (42) in the left-right direction.

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