CN112731141B - Hollow shaft torque motor performance testing device and method - Google Patents
Hollow shaft torque motor performance testing device and method Download PDFInfo
- Publication number
- CN112731141B CN112731141B CN202011447271.3A CN202011447271A CN112731141B CN 112731141 B CN112731141 B CN 112731141B CN 202011447271 A CN202011447271 A CN 202011447271A CN 112731141 B CN112731141 B CN 112731141B
- Authority
- CN
- China
- Prior art keywords
- hollow shaft
- torque motor
- shaft torque
- test
- loading
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides a device and a method for testing the performance of a hollow shaft torque motor, wherein the device comprises a test bench, a middle shaft and a loading structure; the test bench is provided with a plurality of mounting positions for mounting the hollow shaft torque motor; the middle shafts are rotatably arranged on the test bench, a plurality of the middle shafts are arranged in one-to-one correspondence with the mounting positions, and the middle shafts are used for being inserted into the hollow shafts of the hollow shaft torque motor and can synchronously rotate with the hollow shafts; the loading structure is detachably connected with the middle shaft and can synchronously rotate with the hollow shaft. The invention has convenient operation, can test the performance of a plurality of hollow shaft torque motors simultaneously in batches, and has higher test efficiency.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a device and a method for testing the performance of a hollow shaft torque motor.
Background
In recent years, in the field of agricultural machine navigation, the traditional hydraulic steering control device is gradually replaced by steering control of an environment-friendly and easy-to-install hollow shaft torque motor due to the large installation difficulty, poor matching performance and the like. With the mass production and application of the hollow shaft torque motor, the stability of the quality and continuous working performance of the motor is greatly tested. Therefore, there is an urgent need to perform performance testing of the motor for the hollow shaft torque motor.
Currently, a torque sensor test bed is mainly adopted for testing motor performance. The torque sensor test bed comprises a control cabinet and a test bed, wherein the test bed comprises a T-shaped groove platform, a motor to be tested, a torque sensor and a magnetic powder brake, the motor to be tested is fixed on the T-shaped groove platform through a tool, the output end of the motor to be tested is connected with one end of the torque sensor through a coupler, and the other end of the torque sensor is connected with the magnetic powder brake. During test, a tester can select test parameters through the control cabinet to test the torque of the motor.
However, the above-mentioned testing device can only perform torque test of a single motor, is inconvenient to mount and dismount the motor to be tested, and is not suitable for performing performance test of hollow shaft torque motors in a large batch.
Disclosure of Invention
The invention provides a device and a method for testing the performance of a hollow shaft torque motor, which are used for solving the problem that the performance test of the hollow shaft torque motor is difficult to be carried out in a large batch at present.
The invention provides a hollow shaft torque motor performance test device, which comprises:
the test bench is provided with a plurality of mounting positions for mounting the hollow shaft torque motor;
the middle shaft is rotatably arranged at the mounting position, is used for being inserted into a hollow shaft of the hollow shaft torque motor and can synchronously rotate with the hollow shaft;
and the loading structure is detachably connected with the middle shaft and can synchronously rotate with the hollow shaft.
According to the hollow shaft torque motor performance testing device provided by the invention, the loading structure comprises the loading block, and one end of the central shaft is detachably connected with one end of the hollow shaft through the loading block.
According to the hollow shaft torque motor performance testing device provided by the invention, the loading block is used for being detachably connected with the flange plate formed at one end of the hollow shaft; the loading block is sleeved on the central shaft through the first shaft hole, and a first circumferential positioning structure is formed between the side wall of the central shaft and the hole wall of the first shaft hole.
According to the hollow shaft torque motor performance testing device provided by the invention, the first stop step is formed on the central shaft, and the loading block is used for abutting against the stop surface of the first stop step towards one side surface of the hollow shaft torque motor; the loading block is used for being back to be formed with the constant head tank on the side of hollow shaft moment motor, the cooperation is equipped with the location briquetting in the constant head tank, just the constant head tank with realize circumference location between the location briquetting, the axis the loading block reaches the location briquetting passes through the bolt locking subassembly and connects.
According to the hollow shaft torque motor performance testing device provided by the invention, the bolt locking assembly comprises a locking screw rod and a locking spring, wherein the locking screw rod is arranged along the axis of the central shaft, and the locking spring is sleeved on the screw rod of the locking screw rod and is positioned between the positioning press block and the screw head of the locking screw rod; the loading block is in a round table shape, and loading holes distributed along the circumferential direction are formed in the loading block.
According to the hollow shaft torque motor performance testing device provided by the invention, the loading structure comprises a balance weight; the other end of the central shaft extends out of the other end of the hollow shaft, a second shaft hole is formed in the balance block, the balance block is sleeved on the other end of the central shaft through the second shaft hole, and a second circumferential positioning structure is formed between the side wall of the central shaft and the wall of the second shaft hole.
According to the hollow shaft torque motor performance testing device provided by the invention, the second stop step is formed on the central shaft, and the balance weight is used for abutting against the stop surface of the second stop step towards one side surface of the hollow shaft torque motor; the center shaft is in threaded connection with a nut assembly, and the nut assembly is used for being abutted to one side surface, opposite to the hollow shaft torque motor, of the balance weight.
According to the hollow shaft torque motor performance testing device provided by the invention, the area of the testing rack provided with the mounting position is used for being provided with the shock pad between the testing rack and the hollow shaft torque motor.
The invention provides a hollow shaft torque motor performance test device, which further comprises: the control device and the hollow shaft torque motor comprise a plurality of hollow shaft torque motors which are correspondingly arranged at the installation positions one by one, and the control device is respectively in communication connection with each hollow shaft torque motor.
The invention also provides a performance test method of the hollow shaft torque motor performance test device, which comprises the following steps:
s1, mounting the hollow shaft torque motors on all mounting positions on a test bench in a one-to-one correspondence manner, starting the hollow shaft torque motors, and testing the no-load performance of the hollow shaft torque motors;
s2, connecting a hollow shaft of the hollow shaft torque motor passing through the no-load performance test with a central shaft through a loading structure, starting the hollow shaft torque motor, and carrying out the moment of inertia loading test of the hollow shaft torque motor;
and S3, setting copying time for the hollow shaft torque motor passing the moment of inertia loading test, starting the hollow shaft torque motor, and performing aging test of the hollow shaft torque motor according to the copying time to generate a test report.
According to the device and the method for testing the performance of the hollow shaft torque motor, the test bench, the middle shaft and the loading structure are arranged, when the performance test is carried out on the hollow shaft torque, the hollow shaft torque motors can be firstly installed at all installation positions on the test bench in a one-to-one correspondence mode, the empty load performance test of the hollow shaft torque motors is carried out, then the hollow shafts of the hollow shaft torque motors passing through the empty load performance test are connected with the middle shaft through the loading structure, the rotational inertia loading test of the hollow shaft torque motors is carried out, and finally the aging test is carried out on the hollow shaft torque motors passing through the rotational inertia loading test. Therefore, the invention has convenient operation, can test the performance of a plurality of hollow shaft torque motors simultaneously in batches, and has higher test efficiency.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the invention, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic perspective view of a hollow shaft torque motor provided by the present invention;
FIG. 2 is a schematic illustration of a semi-sectional structure of a hollow axle torque motor provided by the present invention;
FIG. 3 is a schematic diagram of a hollow shaft torque motor performance test device provided by the invention;
FIG. 4 is a schematic cross-sectional view of a hollow axle torque motor provided by the present invention mounted on a test stand;
FIG. 5 is a schematic cross-sectional view of a bottom bracket of the present invention;
FIG. 6 is a flow chart of a testing method based on a hollow shaft torque motor performance testing device provided by the invention;
FIG. 7 is a workflow diagram of performance testing of an air spindle torque motor provided by the present invention;
reference numerals:
1: a hollow shaft torque motor; 110: an upper end cap; 111: a shell body;
112: a lower end cap; 113: a hollow shaft; 114: a flange plate;
115: a labyrinth seal structure; 116: a second sealing structure; 117: a third sealing structure;
118: a partition plate; 119: a first cavity; 120: a second cavity;
121: a stator; 122: a rotor; 123: a control board;
124: a code wheel; 125: a signal read/write head; 126: a wire outlet;
2: a test bench; 21: a frame; 22: a tooling table;
220: a mounting surface; 221: a through hole; 222: a motor mounting structure;
223: a horizontal connection surface; 224: an extension surface; 225: a cable fixing hole;
226: a vertical connection surface; 227: an observation port; 23: a slewing bearing structure;
24: a storage table; 25: a control device; 26: a power supply device;
27: a walking wheel; 28: adjusting the support legs; 3: a center shaft;
31: a first stop step; 32: a second stop step; 33: an annular fixed edge;
4: loading a block; 5: positioning a pressing block; 6: a bolt locking assembly;
7: a balance weight; 8: a nut assembly; 9: and a shock pad.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The following describes a hollow shaft torque motor performance test device and method in connection with fig. 1-7.
As shown in fig. 1 and 2, the present embodiment provides a hollow shaft torque motor 1, which includes a housing and a hollow shaft 113, wherein the hollow shaft 113 is rotatably connected with the housing, one end of the hollow shaft 113 is provided with a flange 114 extending out of an end of the housing, and opposite end surfaces of the flange 114 and the end of the housing are connected through a first sealing structure, so as to realize waterproof and dustproof between the flange 114 and the end of the housing.
Specifically, the first sealing structure shown in this embodiment includes a labyrinth sealing structure 115 known in the art, where the labyrinth sealing structure 115 includes a first annular protrusion and a first annular groove coaxially formed on the flange 114, and a second annular protrusion formed on an end portion of the casing, where the first annular protrusion is distributed on an outer side of the first annular groove, the first annular protrusion and the second annular protrusion are arranged in a staggered manner along a radial direction of the hollow shaft torque motor, and an end surface of the first annular protrusion is attached to an end surface of the end portion of the casing, the second annular protrusion extends into the first annular groove, and an end surface of the second annular protrusion is attached to a bottom surface of the first annular groove.
Further, in order to enhance the sealing effect of the labyrinth seal structure 115, the present embodiment is further provided with a first seal ring; the port surface at one end of the hollow shaft 113 in this embodiment is detachably connected with the flange 114 through a locking bolt; the notch of the first annular groove is also used for facing the port surface of one end of the hollow shaft 113, the first sealing ring is embedded in the first annular groove, one end of the first sealing ring is in sealing connection with the bottom surface of the groove of the first annular groove, and the other end of the first sealing ring is in sealing connection with the port surface of one end of the hollow shaft 113.
Preferably, the casing shown in this embodiment includes an upper end cover 110, a casing 111 and a lower end cover 112, where the upper end cover 110 is detachably connected to an upper port of the casing 111, a second sealing structure 116 is disposed between the upper end cover 110 and the upper port of the casing 111, a lower port of the casing 111 is detachably connected to the lower end cover 112, and a third sealing structure 117 is disposed between a lower port of the casing 111 and the lower end cover 112.
One end of the hollow shaft 113 in the embodiment is rotatably connected with the shaft hole of the upper end cover 110 through a sealing bearing; the other end of the hollow shaft 113 in the present embodiment is rotatably connected to the shaft hole of the lower end cap 112 via a seal bearing.
As shown in fig. 2, the periphery of the upper end cover 110 shown in this embodiment is formed with a first annular rim extending toward one side of the housing 111, and the second sealing structure 116 shown in this embodiment includes a second sealing ring and a first positioning notch, the first positioning notch is annular, and the first positioning notch is formed on the outer side wall of the first annular rim along the circumferential direction and is disposed toward the upper port of the housing 111; the port surface of the upper port of the shell 111 is attached to the radial notch surface of the first positioning notch, the inner side wall of the shell 111 is attached to the axial notch surface of the first positioning notch, and the second sealing ring is embedded between the inner side wall of the shell 111 and the axial notch surface of the first positioning notch.
Meanwhile, the third sealing structure 117 in this embodiment includes a third sealing ring and a second positioning notch, where the second positioning notch is annular, and the second positioning notch is formed on an outer sidewall near the lower port of the housing 111 along the circumferential direction and is disposed towards the lower end cover 112; the periphery of the lower end cover 112 is formed with a second annular edge extending towards one side of the shell 111, a port surface of the second annular edge is attached to a radial gap surface of the second positioning gap, a third sealing ring is embedded between the port surface of the second annular edge and the radial gap surface of the second positioning gap, and an inner side wall of the second annular edge is attached to an axial gap surface of the second positioning gap.
It should be noted here that the radial notch surface shown in this embodiment is an annular surface distributed along the radial direction of the hollow shaft torque motor, and the axial notch surface is an annular surface distributed along the axial direction of the hollow shaft torque motor.
Preferably, the diameter of the outer side wall of the second annular rim is greater than or equal to the diameter of the outer side wall of the shell 111, and the diameter of the outer side wall of the shell 111 is greater than or equal to the diameter of the outer side wall of the first annular rim, so that the hollow shaft torque motor is in a cone frustum structure in appearance, and the aesthetic property of the integral structure is ensured.
Preferably, a partition plate 118 is further installed in the casing shown in the embodiment, the partition plate 118, the hollow shaft 113, the upper end cover 110 and the casing 111 enclose a first cavity 119, the partition plate 118, the hollow shaft 113 and the lower end cover 112 enclose a second cavity 120, a stator 121 and a rotor 122 are arranged in the first cavity 119, the stator 121 is circumferentially installed on the inner side wall of the casing 111, and the rotor 122 is circumferentially installed on the hollow shaft 113 and is oppositely arranged with the stator 121 along the radial direction of the hollow shaft torque motor; a control board 123 is installed in the second cavity 120, and the control board 123 is electrically connected with the stator 121, wherein the control board 123 may be designed as a circular ring shape or a semi-circular ring shape according to the shape of the second cavity 120.
Specifically, the partition plate 118 shown in this embodiment is in a ring shape, and the inner edge of the partition plate 118 is in contact connection with the side surface of the hollow shaft 113; a third annular rim extending toward the inside of the housing body 111 is also formed at the lower port of the housing body 111, and the outer rim of the partition 118 is fixedly connected with the third annular rim, wherein the third annular rim in the embodiment may be specifically configured to extend in the radial direction of the hollow shaft torque motor.
Preferably, the present embodiment is further provided with a code wheel 124 and a signal read/write head 125; the code wheel 124 is coaxially installed on the hollow shaft 113 and is located in the first cavity 119, and the signal read-write head 125 is fixedly installed in the first cavity 119; the signal read-write head 125 is disposed along the axial direction of the hollow shaft 113 and vertically corresponds to the grating on the code wheel 124, and the signal read-write head 125 is communicatively connected to the control board 123.
Specifically, a fourth annular edge is further formed on the side surface of the hollow shaft 113 in the embodiment, the fourth annular edge is distributed in the first cavity 119, and the code disc 124 in the embodiment is installed on the fourth annular edge, and the code disc 124 is a high-precision photoelectric code disc known in the art; the third annular rim is provided with a signal pickup head 125. The signal pickup head 125 may be a light emitting diode or a proximity switch as known in the art.
Thus, during the rotation of the hollow shaft torque motor, the code wheel 124 rotates along with the hollow shaft 113 of the hollow shaft torque motor, and the signal read-write head 125 feeds back the rotation parameters of the hollow shaft torque motor to the control board 123 in real time, so as to realize the servo control of the hollow shaft torque motor.
Preferably, the outer side wall of the casing in this embodiment is further provided with an outlet 126, and an axis of the outlet 126 is disposed along a tangential direction on the outer side wall of the casing, where the outlet 126 is specifically disposed on the outer side wall where the second annular rim is located. The design of the outlet 126 ensures the smoothness of the wiring of the hollow shaft torque motor and prevents the wiring of the circuit from being damaged due to bending in the wiring process.
As shown in fig. 3 and fig. 5, based on the improvement of the above embodiment, the present embodiment further provides a hollow shaft torque motor performance testing device, which includes a testing bench 2, a middle shaft 3 and a loading structure; the test bench 2 is provided with a plurality of mounting positions for mounting the hollow shaft torque motor; the middle shaft 3 is rotatably arranged at the installation position, and the middle shaft 3 is used for being inserted into a hollow shaft 113 of the hollow shaft torque motor and can synchronously rotate with the hollow shaft 113; the loading structure is detachably connected to the central shaft 3 and can rotate synchronously with the hollow shaft 113.
Specifically, in this embodiment, when performing performance test on the moment of the hollow shaft 113 by setting the test bench 2, the central shaft 3 and the loading structure, the hollow shaft moment motors can be firstly installed at each installation position on the test bench 2 in a one-to-one correspondence manner to perform no-load performance test on the hollow shaft moment motors, then the hollow shaft 113 of the hollow shaft moment motor passing the no-load performance test is connected with the central shaft 3 through the loading structure to perform moment of inertia loading test on the hollow shaft moment motors, and finally, the hollow shaft moment motors passing the moment of inertia loading test are subjected to aging test. Therefore, the device shown in the embodiment is convenient to operate, can test the performance of a plurality of hollow shaft torque motors simultaneously in batches, and has higher test efficiency.
As shown in fig. 3, the present embodiment provides a hollow shaft torque motor performance test bench, the test bench 2 includes a frame 21, a tooling table 22 is mounted on the upper side of the frame 21, at least one mounting surface 220 is formed on the tooling table 22, a plurality of mounting positions are disposed on the mounting surface 220, the plurality of mounting positions are spaced from each other, and through holes 221 and a motor mounting structure 222 are disposed on the mounting positions; wherein, the through hole 221 is used for the middle shaft 3 to pass through; in the case of a threaded hole formed in the lower end cover 112 of the hollow shaft torque motor, the motor mounting structure 222 may be configured as a plurality of mounting holes circumferentially arranged around the through hole 221, the threaded holes in the lower end cover 112 of the hollow shaft torque motor may be in one-to-one correspondence with the mounting holes, and the fixture table 22 and the hollow shaft torque motor may be fixed by a spring plunger positioning pin penetrating through the threaded holes and the mounting holes; in the case that the lower end cover 112 of the hollow shaft torque motor is provided with a mounting seat, the motor mounting structure 222 may also be a fixing seat disposed at the mounting position, and by connecting the fixing seat with the mounting seat on the hollow shaft torque motor, the fixture table 22 and the hollow shaft torque motor may also be fixed.
Meanwhile, the tool table 22 shown in this embodiment is further provided with a slewing bearing structure 23, where the slewing bearing structure 23 is used to be mounted on a side surface of the tool table 22 far from the hollow shaft torque motor and is coaxially arranged with the through hole 221, the slewing bearing structure 23 is specifically disposed on a side surface of the tool table 22 far from the mounting surface 220, an annular fixing edge 33 is formed on a side portion of the middle part of the middle shaft 3, a shaft hole of the slewing bearing structure 23 is sleeved on the middle shaft 3, and the slewing bearing structure 23 is fixedly connected with the annular fixing edge 33 on the middle shaft 3.
Further, in order to facilitate the installation of the hollow shaft torque motor, the installation surface 220 in this embodiment is configured to be disposed obliquely downward along the axial direction perpendicular to the hollow shaft torque motor, where the axial direction of the hollow shaft torque motor is disposed obliquely upward.
Meanwhile, the mounting surface 220 shown in the present embodiment extends in the first direction, and a plurality of mounting positions are sequentially spaced apart in the first direction. The two mounting surfaces 220 in this embodiment are symmetrically disposed on two sides of a vertical plane.
Preferably, the tooling table 22 in this embodiment is further formed with a horizontal connection surface 223, the horizontal connection surface 223 extends along the first direction, one side surface of the horizontal connection surface 223 along the first direction is connected with one side edge of one mounting surface 220 along the first direction, the other side surface of the horizontal connection surface 223 along the first direction is connected with one side edge of the other mounting surface 220 along the first direction, and the horizontal connection surface 223 is used for mounting the control device 25 and the power supply device 26.
Preferably, the tooling table 22 in this embodiment is further formed with an extension surface 224, the extension surface 224 is disposed on a side of the mounting surface 220 away from the horizontal connection surface 223, and a plurality of cable fixing holes 225 are provided on the extension surface 224, wherein the cable fixing holes 225 are disposed in one-to-one correspondence with the mounting positions.
Preferably, the tooling table 22 shown in the embodiment further includes vertical connecting surfaces 226 disposed at two ends in the first direction, the vertical connecting surfaces 226 are respectively connected with the horizontal connecting surface 223 and the two mounting surfaces 220, and an observation port 227 is formed on the vertical connecting surfaces 226, so that an operator can check the mounting condition of the hollow shaft torque motor through the observation port 227, and the mounting and the dismounting of related parts are facilitated.
Preferably, the rack 21 in this embodiment is further provided with a storage table 24, where the storage table 24 is disposed below the tooling table 22, and is used for temporarily storing the hollow shaft torque motor to be tested and the hollow shaft torque motor after testing.
Preferably, the bottom of the stand 21 shown in this embodiment is further provided with a travelling mechanism, the travelling mechanism includes a travelling wheel 27 and an adjusting support leg 28, the adjusting support leg 28 includes a vertical rod and a support, the upper end of the vertical rod is connected with a mounting seat of the travelling wheel 27, the lower end of the vertical rod is in threaded connection with the support, and the mounting position of the support on the vertical rod is adjusted by rotating the support, so that the stand 21 can be controlled to stop at a position required for a test by controlling the lower end of the support to abut against the ground.
As shown in fig. 3 and 4, the loading structure in this embodiment includes a loading block 4, and one end of the central shaft 3 is detachably connected to one end of the hollow shaft 113 through the loading block 4.
Specifically, one end of the hollow shaft 113 in this embodiment is provided with a plurality of screw holes distributed along the circumferential direction, so that the flange 114 can be locked and connected with one end of the hollow shaft 113 through the screw holes, and then the loading block 4 in this embodiment is detachably connected with the flange 114 through the spring plunger positioning pin. The loading block 4 shown in this embodiment is formed with a first shaft hole, the loading block 4 is sleeved on the central shaft 3 through the first shaft hole, and a first circumferential positioning structure is formed between the side wall of the central shaft 3 and the hole wall of the first shaft hole.
It should be noted here that the first circumferential positioning structure shown in this embodiment includes a first positioning structure formed on a side wall of the central shaft 3 and a second positioning structure formed on a hole wall of the first shaft hole and adapted to the first positioning structure, where the first positioning structure includes a combination shape formed by at least one of a straight surface and an arc surface, for example, the first positioning structure may design the cross section of the central shaft 3 as a rectangle in the case of including only a plurality of straight surfaces, and in this case, the first shaft hole is a rectangular hole correspondingly; under the condition that the first positioning structure only comprises a straight surface and an arc surface, the section of the middle shaft 3 can be designed into a D shape, and at the moment, the first shaft hole is correspondingly a D-shaped hole, so that relative rotation between the middle shaft 3 and the loading block 4 along the circumferential direction can be effectively prevented based on the first circumferential positioning structure.
Further, as shown in fig. 5, in order to axially position the loading block 4 and prevent the loading block 4 from axially moving, a first stop step 31 is formed on the bottom bracket 3 shown in this embodiment, and the loading block 4 is used for abutting against a stop surface of the first stop step 31 towards a side surface of the hollow shaft torque motor; the loading block 4 is used for being formed with the constant head tank on the side of the hollow shaft moment motor that faces away from, is furnished with location briquetting 5 in the constant head tank, and realizes circumference location between constant head tank and the location briquetting 5, and axis 3, loading block 4 and location briquetting pass through bolt locking subassembly 6 and connect.
Specifically, in this embodiment, the positioning groove may be designed as a rectangular groove, and the positioning pressing block 5 may be designed as a rectangular pressing block, so that when the positioning pressing block 5 is embedded in the positioning groove, the circumferential positioning between the two can be achieved.
Meanwhile, the positioning groove and the first shaft hole on the loading block 4 can be designed to be coaxially arranged, and meanwhile, the bolt locking assembly 6 comprises a locking screw rod and a locking spring, the locking screw rod is arranged along the axis of the center shaft 3, and the locking spring is sleeved on the screw rod of the locking screw rod and is positioned between the positioning pressing block 5 and the screw head of the locking screw rod.
In addition, in order to ensure the stability of the spindle torque motor rotation during the motor performance test, the loading block 4 may be further provided in the shape of a truncated cone in this embodiment.
Furthermore, in this embodiment, loading holes distributed along a circumferential direction may be further formed in the loading block 4, and the loading holes may be threaded holes, through which different flying discs may be fixed to the loading block 4, so as to adjust the moment of inertia loaded on the hollow shaft torque motor.
Further, the loading structure shown in this embodiment further includes a balance weight 7, and the balance weight 7 may be a flywheel as known in the art; the other end of the central shaft 3 extends from the other end of the hollow shaft 113, a second shaft hole is formed in the balance block 7, the balance block 7 is sleeved at the other end of the central shaft 3 through the second shaft hole, and a second circumferential positioning structure is formed between the side wall of the central shaft 3 and the wall of the second shaft hole, wherein the second circumferential positioning structure can adopt the same structure as the first circumferential positioning structure shown in the embodiment, so that synchronous rotation of the central shaft 3 and the balance block 7 is realized.
Meanwhile, as shown in fig. 4, in order to prevent the weight 7 from axially moving on the bottom bracket 3, a second stop step 32 is formed on the bottom bracket 3 shown in this embodiment, and the weight 7 is used for abutting against a stop surface of the second stop step 32 toward a side surface of the hollow shaft torque motor; the middle shaft 3 is in threaded connection with a nut component 8, and the nut component 8 is used for abutting against one side surface of the balance weight 7, which is back to the hollow shaft torque motor.
Preferably, a shock pad 9 is disposed between the area of the test bench 2 where the mounting position is disposed and the hollow shaft torque motor, where the shock pad 9 may be a rubber pad with flame retardant, wear resistant and antistatic functions as known in the art.
Specifically, this embodiment through setting up shock pad 9, can effectively prevent that hollow shaft moment motor from transmitting to test rack 2 at the vibration that rotates the in-process produced, guaranteed the stability of hollow shaft moment motor at test rack 2 installation, avoid in motor performance test, each hollow shaft moment motor produces the influence each other because of the vibration each other to the accuracy of motor performance test result has been ensured.
Based on the improvement of the above embodiment, in the present embodiment, when performing performance test of the hollow shaft torque motors, a plurality of hollow shaft torque motors may be installed at each installation position on the tooling table 22 in a one-to-one correspondence manner, the power supply device 26 on the tooling table 22 is electrically connected with each hollow shaft torque motor, and the control device 25 on the tooling table 22 is connected with each hollow shaft torque motor in a communication manner through a CAN bus or other bus communication manners, so as to complete batch brushing of each hollow shaft torque motor and issuing of test instructions, and the operation condition of each tested hollow shaft torque motor may also be synchronously fed back to the control device 25 for real-time monitoring. The control device 25 may be an industrial personal computer or a desktop computer, and the power supply device 26 may be a dc regulated power supply.
As shown in fig. 6 and fig. 7, the present embodiment further provides a performance testing method of the hollow shaft torque motor performance testing device as described above, including: s1, mounting the hollow shaft torque motors on all mounting positions on a test bench in a one-to-one correspondence manner, starting the hollow shaft torque motors, and testing the no-load performance of the hollow shaft torque motors; s2, connecting a hollow shaft of the hollow shaft torque motor passing through the no-load performance test with a central shaft through a loading structure, starting the hollow shaft torque motor, and carrying out the moment of inertia loading test of the hollow shaft torque motor; and S3, setting copying time for the hollow shaft torque motor passing the moment of inertia loading test, starting the hollow shaft torque motor, and performing aging test of the hollow shaft torque motor according to the copying time to generate a test report.
Specifically, based on the installation structure of each hollow shaft torque motor shown in the above embodiment, when the performance test of the hollow shaft torque motor is performed in this embodiment, specific operation steps are as follows:
firstly, starting a direct-current stabilized power supply to supply power for a control device, opening a test system interface of the control device, and completing system self-checking;
then, each hollow shaft moment motor is arranged at a corresponding installation position on the tooling table, at the moment, the control device is connected with each hollow shaft moment motor through a communication cable, and the hollow shafts of each hollow shaft moment motor and the sleeved central shaft of each hollow shaft moment motor are ensured to be in a phase separation state, namely, when the hollow shaft moment motor is started, the hollow shafts of the hollow shaft moment motors and the sleeved central shaft of the hollow shaft moment motor do not synchronously rotate;
then, a brushing machine program is issued to each hollow shaft torque motor in batches through a control device so as to control each hollow shaft torque motor to rotate according to a steering test instruction set in the brushing machine program, and no-load performance test of the motor is carried out;
and after the no-load test of each hollow shaft torque motor is passed, sleeving the loading block on the central shaft, enabling one side surface of the loading block to be abutted against the stop surface of the first stop step on the central shaft, axially locking the other side surface of the loading block through the positioning press block and the bolt locking assembly, and connecting the loading block with a flange plate on the hollow shaft torque motor, so that the hollow shaft of the hollow shaft torque motor is connected with the central shaft while the loading block is installed and fixed. At the moment, starting the hollow shaft moment motor, and carrying out a moment of inertia loading test of the hollow shaft moment motor;
and finally, setting copying time for the hollow shaft torque motor passing the moment of inertia loading test, starting the hollow shaft torque motor, and performing aging test of the hollow shaft torque motor according to the copying time to generate a test report.
It should be noted that, for the problem or failure motor in no-load, moment of inertia loading and aging test, the motor repair can be uniformly performed, and after the motor is repaired, the repaired hollow shaft torque motor can be subjected to batch machine-brushing program again so as to perform corresponding performance test.
Meanwhile, in the testing process, for the motor with faults, an alarm function can be set in a testing system, a tester can be reminded of timely processing the motor with faults in real time, and a final test report about the no-load performance, the moment of inertia loading performance and the aging testing performance of the hollow shaft moment motor is printed.
In addition, after the current batch of hollow shaft torque motors are tested, a new batch of hollow shaft torque motors can be subjected to the on-frame test, and when all the hollow shaft torque motors are tested for performance, the system power-off treatment can be performed.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. The performance test method based on the hollow shaft torque motor performance test device is characterized in that the test device comprises a test bench, a middle shaft and a loading structure; the test bench is provided with a plurality of mounting positions for mounting the hollow shaft torque motor; the middle shaft is rotatably arranged at the mounting position, is used for being inserted into a hollow shaft of the hollow shaft torque motor and can synchronously rotate with the hollow shaft; the loading structure is detachably connected with the middle shaft and can synchronously rotate with the hollow shaft;
the test method comprises the following steps:
s1, mounting the hollow shaft torque motors on all mounting positions on a test bench in a one-to-one correspondence manner, starting the hollow shaft torque motors, and testing the no-load performance of the hollow shaft torque motors;
s2, connecting a hollow shaft of the hollow shaft torque motor passing through the no-load performance test with a central shaft through a loading structure, starting the hollow shaft torque motor, and carrying out the moment of inertia loading test of the hollow shaft torque motor;
s3, setting copying time for the hollow shaft torque motor passing through the moment inertia loading test, starting the hollow shaft torque motor, and performing aging test of the hollow shaft torque motor according to the copying time to generate a test report;
the loading structure comprises a loading block, and one end of the central shaft is detachably connected with one end of the hollow shaft through the loading block;
a first stop step is formed on the middle shaft, and the loading block is used for abutting against a stop surface of the first stop step towards one side surface of the hollow shaft torque motor; the loading block is used for being back to be formed with the constant head tank on the side of hollow shaft moment motor, the cooperation is equipped with the location briquetting in the constant head tank, just the constant head tank with realize circumference location between the location briquetting, the axis the loading block reaches the location briquetting passes through the bolt locking subassembly and connects.
2. The performance testing method based on the hollow shaft torque motor performance testing device according to claim 1, wherein the loading block is used for being detachably connected with a flange plate formed at one end of the hollow shaft; the loading block is sleeved on the central shaft through the first shaft hole, and a first circumferential positioning structure is formed between the side wall of the central shaft and the hole wall of the first shaft hole.
3. The performance testing method based on the hollow shaft torque motor performance testing device according to claim 1, wherein the bolt locking assembly comprises a locking screw rod and a locking spring, the locking screw rod is arranged along the axis of the center shaft, and the locking spring is sleeved on the screw rod of the locking screw rod and is positioned between the positioning press block and the screw head of the locking screw rod; the loading block is in a round table shape, and loading holes distributed along the circumferential direction are formed in the loading block.
4. The method for testing the performance of the hollow shaft-based torque motor performance testing device according to claim 1, wherein the loading structure comprises a balance weight; the other end of the central shaft extends out of the other end of the hollow shaft, a second shaft hole is formed in the balance block, the balance block is sleeved on the other end of the central shaft through the second shaft hole, and a second circumferential positioning structure is formed between the side wall of the central shaft and the wall of the second shaft hole.
5. The performance testing method based on the hollow shaft torque motor performance testing device according to claim 4, wherein a second stop step is formed on the center shaft, and the balance block is used for abutting against a stop surface of the second stop step towards one side surface of the hollow shaft torque motor; the center shaft is in threaded connection with a nut assembly, and the nut assembly is used for being abutted to one side surface, opposite to the hollow shaft torque motor, of the balance weight.
6. The performance testing method based on the hollow shaft torque motor performance testing device according to claim 1, wherein a shock pad is arranged between the area of the testing bench where the installation position is arranged and the hollow shaft torque motor.
7. The method for testing the performance of a hollow shaft torque motor based performance testing device according to any one of claims 1 to 6, wherein the testing device further comprises: the control device and the hollow shaft torque motor comprise a plurality of hollow shaft torque motors which are correspondingly arranged at the installation positions one by one, and the control device is respectively in communication connection with each hollow shaft torque motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011447271.3A CN112731141B (en) | 2020-12-09 | 2020-12-09 | Hollow shaft torque motor performance testing device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011447271.3A CN112731141B (en) | 2020-12-09 | 2020-12-09 | Hollow shaft torque motor performance testing device and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112731141A CN112731141A (en) | 2021-04-30 |
| CN112731141B true CN112731141B (en) | 2023-05-12 |
Family
ID=75599271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011447271.3A Active CN112731141B (en) | 2020-12-09 | 2020-12-09 | Hollow shaft torque motor performance testing device and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112731141B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203376091U (en) * | 2013-07-11 | 2014-01-01 | 河南科技大学 | Moment motor resistance moment test system |
| CN103576090A (en) * | 2013-10-25 | 2014-02-12 | 宝鸡航天华科机电工业有限公司 | Servo motor electromechanical time constant testing method and tester |
| CN207442656U (en) * | 2017-10-23 | 2018-06-01 | 浙江合众新能源汽车有限公司 | A kind of hub motor for electric automobile test-bed |
| WO2018102978A1 (en) * | 2016-12-06 | 2018-06-14 | 西安交通大学 | Testing system and method for servo characteristic of variable inertia of permanent magnet synchronous motor |
| CN208476442U (en) * | 2018-07-17 | 2019-02-05 | 杭州创耀科技有限公司 | A kind of magnetic hysteresis dynamometer machine |
-
2020
- 2020-12-09 CN CN202011447271.3A patent/CN112731141B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203376091U (en) * | 2013-07-11 | 2014-01-01 | 河南科技大学 | Moment motor resistance moment test system |
| CN103576090A (en) * | 2013-10-25 | 2014-02-12 | 宝鸡航天华科机电工业有限公司 | Servo motor electromechanical time constant testing method and tester |
| WO2018102978A1 (en) * | 2016-12-06 | 2018-06-14 | 西安交通大学 | Testing system and method for servo characteristic of variable inertia of permanent magnet synchronous motor |
| CN207442656U (en) * | 2017-10-23 | 2018-06-01 | 浙江合众新能源汽车有限公司 | A kind of hub motor for electric automobile test-bed |
| CN208476442U (en) * | 2018-07-17 | 2019-02-05 | 杭州创耀科技有限公司 | A kind of magnetic hysteresis dynamometer machine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112731141A (en) | 2021-04-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102426097B (en) | Dynamic loading device for high-speed motorized spindle | |
| CN202188954U (en) | High-speed electric spindle dynamic loading device | |
| CN109353168A (en) | A kind of automotive hub provision for disengagement | |
| US20100178125A1 (en) | Index device for machine tool | |
| CN106768642A (en) | A kind of dissection type automatic balancing arrangement for realizing rotating machinery on line auto balancing | |
| CN111855203A (en) | Steering bearing dynamic durability test device | |
| CN112731141B (en) | Hollow shaft torque motor performance testing device and method | |
| CN217359644U (en) | Adjustable three-axis electric welding machine and weld joint defect detection device | |
| CN110470428B (en) | Online dynamic balance adjusting device driven by shape memory alloy | |
| CN110702284B (en) | Dynamometer | |
| CN108663148B (en) | Chassis dynamometer driven by permanent magnet synchronous motor | |
| CN214292981U (en) | Hollow shaft torque motor performance test rack | |
| US10052704B2 (en) | Electric discharge machine with rotary table | |
| CN214125015U (en) | Hollow shaft torque motor | |
| CN218947522U (en) | Assembly fixture for workbench of numerical control machine tool | |
| CN208568127U (en) | The chassis dynamometer of permanent magnet synchronous motor driving | |
| CN214392369U (en) | Self-balancing electric spindle with automatic pre-tightening function | |
| CN103630342B (en) | A kind of rail vehicle built-in axle running test device | |
| CN209208369U (en) | A kind of automotive hub provision for disengagement | |
| EP0911947B1 (en) | Structure for centering between machine shaft and motor shaft | |
| CN108199538A (en) | A kind of servo wheel hub motor | |
| CN209802665U (en) | Steering bearing dynamic durability test device | |
| CN221124812U (en) | Tool for rapidly judging faults of motor and motor controller | |
| CN109029316B (en) | Automatic centering fixture device and method for comprehensive detection of disc-shaped rotor | |
| CN108705328B (en) | Hollow harmonic platform |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |