CN218971691U - Shaft coupling frock for motor test - Google Patents
Shaft coupling frock for motor test Download PDFInfo
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- CN218971691U CN218971691U CN202320019594.5U CN202320019594U CN218971691U CN 218971691 U CN218971691 U CN 218971691U CN 202320019594 U CN202320019594 U CN 202320019594U CN 218971691 U CN218971691 U CN 218971691U
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Abstract
The utility model relates to the technical field of motor testing, and provides a coupling tool for motor testing, which comprises the following components: a coupling having a first end for coupling with a drive shaft of a drive apparatus and a second end opposite the first end; the connecting shaft is connected to the second end and is provided with a connecting key for connecting a motor shaft of the motor to be tested; and a circumferential positioning member, through which at least the drive shaft is coupled to the first end, for circumferentially synchronizing the mechanical zero position of the drive device and the mechanical zero position of the connecting key and limiting rotation of the coupled shaft component relative to the coupling. According to the coupling tool for motor test, the driving equipment and the motor to be tested are stably connected to the coupling through the circumferential positioning component and the connecting shaft, circumferential fixation is achieved, the driving equipment and the motor to be tested are prevented from rotating relative to the coupling in the test process, mechanical zero positions of the driving equipment/the motor to be tested are conveniently and rapidly positioned in the mold changing process, and therefore test efficiency is improved, and test accuracy is guaranteed.
Description
Technical Field
The utility model relates to the technical field of motor testing, in particular to a coupling tool for motor testing.
Background
The motor is configured in products such as the electronic brake booster controller, and before the products are put into use, the motor needs to be tested so as to ensure that the performance of the products reaches the standard.
When testing a motor, a shaft part of a driving device is required to be connected with a shaft part of a motor to be tested by using a coupling device, the motor is driven to rotate by the driving device, and the output torque of the motor is tested.
Current coupling devices generally consist of a coupling sleeve and a clamping member; the shaft part of the driving device and the shaft part of the motor to be tested are sleeved through the coupling sleeve, and the corresponding shaft part and the coupling sleeve are clamped through the clamping piece. The shaft coupling device has the problems that the shaft component and the shaft coupling sleeve cannot be effectively circumferentially fixed, and rotation exists between the shaft component and the shaft coupling sleeve in the testing process; in addition, the motors to be tested usually have different specifications, and the motors to be tested need to be subjected to model change in the testing process, and because rotation is generated between the shaft part of the driving device/the shaft part of the motors to be tested and the coupling sleeve, mechanical zero positions of the driving device/the motors to be tested cannot be accurately aligned in model change, and testing accuracy and testing efficiency are affected.
It should be noted that the information disclosed in the above background section is only for enhancing understanding of the background of the utility model and thus may include information that does not form the prior art that is already known to those of ordinary skill in the art.
Disclosure of Invention
In view of the above, the utility model provides a coupling tool for testing a motor, which is characterized in that a driving device and a motor to be tested are stably connected to a coupling through a circumferential positioning member and a connecting shaft to realize circumferential fixation, so that the driving device and the motor to be tested are prevented from rotating relative to the coupling in the testing process, and mechanical zero positions of the driving device/the motor to be tested are conveniently and rapidly positioned in the mold changing process, thereby improving the testing efficiency and ensuring the testing accuracy.
According to one aspect of the present utility model, there is provided a coupling tool for motor testing, comprising: a coupling having a first end for coupling with a drive shaft of a drive apparatus and a second end opposite the first end; the connecting shaft is connected to the second end and is provided with a connecting key for connecting a motor shaft of the motor to be tested; a circumferential locating member, at least the drive shaft being coupled to the first end by the circumferential locating member, the circumferential locating member being adapted to circumferentially synchronize the mechanical zero position of the drive apparatus with the mechanical zero position of the connecting key and to limit rotation of the coupled shaft component relative to the coupling.
According to the coupling tool for motor test, the driving shaft of the driving device and the motor shaft of the motor to be tested are stably connected through the coupling through the circumferential positioning member and the connecting shaft; the circumferential positioning member can circumferentially synchronize the mechanical zero position of the driving device and the mechanical zero position of the connecting key, and the mechanical zero position of the motor to be tested can be conveniently positioned in a key alignment mode by the connecting key, so that the mechanical zero position of the driving device is aligned with the mechanical zero position of the motor to be tested, the circumferential positioning member also limits the rotation of the connected shaft part relative to the coupler, the corresponding shaft part is prevented from rotating in the test process, the accurate test of the motor to be tested is realized, and the test accuracy is ensured; in addition, the circumferential positioning member is used for keeping circumferential fixation between the coupled shaft component and the coupling, so that mechanical zero positions of the driving equipment/the motor to be tested can be positioned rapidly and accurately in the mold changing process, the mold changing time is shortened, and the testing efficiency is improved.
In some embodiments, the circumferential locating member is disposed in circumferential alignment with the mechanical zero position of the coupled shaft component and circumferentially interferes with movement of the coupled shaft component relative to the coupling.
The setting position of the circumferential positioning member is circumferentially aligned with the mechanical zero position of the coupled shaft component, so that when the corresponding shaft component is coupled to the coupler through the circumferential positioning member, the mechanical zero position of the shaft component is positioned at the circumferential positioning member, and the mechanical zero position of the driving device is conveniently aligned with the mechanical zero position of the motor to be tested; in addition, the coupled shaft member is restrained from rotating relative to the coupling by means of circumferential interference with the movement of the coupled shaft member relative to the coupling without requiring a complicated fixing structure, so that the coupled shaft member and the coupling are kept circumferentially fixed.
In some embodiments, the circumferential positioning member comprises: the key groove is formed in the first shaft hole at the first end; the flat key is embedded in the shaft wall of the driving shaft and circumferentially aligned with the mechanical zero position of the driving equipment; and the flat key is clamped into the key groove along with the driving shaft inserted into the first shaft hole, and circumferentially abuts against the driving shaft and the key groove.
Through flat key clamping mode, inlay the flat key of establishing with the mechanical zero position circumference counterpoint of actuating device at the axle wall of actuating shaft to make the flat key insert in the keyway in the first shaft hole at the in-process of actuating shaft inserting first shaft hole, with circumference butt drive shaft and keyway, can prevent that actuating device from rotating relative shaft coupling, be convenient for carry out high torque transmission test to the motor that awaits measuring.
In some embodiments, the axial extension of the keyway is greater than or equal to the axial extension of the flat key.
The axial extension length of the key groove is greater than or equal to that of the flat key, so that the key groove can be conveniently matched with driving shafts/flat keys with different axial specifications during the mold changing.
In some embodiments, the circumferential positioning member further comprises: and the set screw is radially inserted into the key slot from the outer wall of the first end to abut against the flat key.
The flat key is prevented from falling off by the laterally inserted positioning screw, so that the flat key is stably and circumferentially abutted against the driving shaft and the key groove.
In some embodiments, the circumferential positioning member comprises: the first groove and the first shoulder are respectively arranged on the end face of the first end and the shaft wall of the driving shaft, the first shoulder is inserted into the first shaft hole of the first end along with the driving shaft, and the first shoulder is clamped into and circumferentially abuts against the first groove; wherein, the circumferential positioning component arranged on the shaft wall of the driving shaft is circumferentially aligned with the mechanical zero position of the driving equipment; a non-circular second groove and a second shoulder which are respectively arranged on the end face of the second end and the shaft wall of the connecting shaft, and inserted into the second shaft hole of the second end along with the connecting shaft, wherein the second shoulder is clamped into and circumferentially abuts against the second groove; the circumferential positioning member arranged on the shaft wall of the coupling shaft is circumferentially aligned with the mechanical zero position of the connecting key, and the circumferential positioning member arranged on the end face of the second end is circumferentially aligned with the circumferential positioning member arranged on the end face of the first end.
The first shoulder is clamped into and circumferentially abuts against the first groove when the driving shaft is inserted into the first shaft hole through the non-circular first groove and the first shoulder, so that the driving equipment is prevented from rotating relative to the coupler; the connecting shaft is inserted into the two shoulders of the second shaft Kong Shidi through the non-circular second groove and the second shoulder to be clamped in and circumferentially abutted against the second groove, so that the motor to be tested is prevented from rotating relative to the coupler; the circumferential positioning members arranged on the driving shaft and the mechanical zero position of the driving equipment are circumferentially aligned, the circumferential positioning members arranged on the connecting shaft and the mechanical zero position of the connecting key are circumferentially aligned, and the circumferential positioning members arranged on the two ends of the coupler are circumferentially aligned, so that when the driving shaft and the connecting shaft are connected to the coupler, the precise alignment of the mechanical zero position is realized at the circumferential positioning members.
In some embodiments, the first groove is formed on an end surface of the first end, the first groove is axially recessed and circumferentially surrounds the first shaft hole, the first shoulder is formed on a shaft wall of the driving shaft, and the first shoulder is connected with a first insertion portion of the driving shaft for inserting into the first shaft hole and circumferentially exceeds the first insertion portion; the second groove is formed in the end face of the second end, the second groove is axially recessed and circumferentially surrounds the second shaft hole, the second shoulder is formed in the shaft wall of the coupling shaft, and the second shoulder is connected with a second insertion portion of the coupling shaft, which is used for being inserted into the second shaft hole, and circumferentially exceeds the second insertion portion.
Through the first groove which is formed on the end face of the first end, axially recessed and circumferentially surrounds the first shaft hole, the shaft wall of the driving shaft, and the first shoulder which is connected with the first insertion part of the driving shaft and circumferentially exceeds the first insertion part, the first shoulder is accurately clamped into the first groove along with the insertion of the first insertion part into the first shaft hole, and the driving shaft and the coupling are circumferentially fixed; through the second groove which is formed on the end face of the second end, axially sunken and circumferentially surrounds the second shaft hole, the shaft wall which is formed on the connecting shaft, the second shoulder which is connected with the second insertion part of the connecting shaft and circumferentially exceeds the second insertion part, the second shoulder is accurately clamped into the second groove along with the insertion of the second insertion part into the second shaft hole, and the connecting shaft and the coupling are circumferentially fixed. And the motor shaft and the connecting shaft can be circumferentially and firmly connected through external splines on the motor shaft and connecting keys of the connecting shaft.
In some embodiments, the first groove extends along a first radial line of the first shaft bore and the second groove extends along a second radial line of the second shaft bore; when the first shoulder is clamped into the first groove and the second shoulder is clamped into the second groove, the mechanical zero position of the driving device and the mechanical zero position of the connecting key fall into a plane formed by the first radial line and the second radial line.
When the first shoulder is clamped into the first groove, the second shoulder is clamped into the second groove, the mechanical zero position of the driving device and the mechanical zero position of the connecting key fall into a plane formed by the extending direction (first radial line) of the first groove and the extending direction (second radial line) of the second groove, so that the mechanical zero position of the driving device and the mechanical zero position of the motor to be detected can be aligned accurately.
In some embodiments, the circumferential positioning member further comprises: and the positioning pin shaft radially penetrates through the second shaft hole of the second end and the connecting shaft.
The coupling shaft is stably coupled to the coupling by a positioning pin shaft radially penetrating the second shaft hole and the coupling shaft.
Compared with the prior art, the utility model has the beneficial effects that at least:
according to the coupling tool for motor test, the driving shaft of the driving device and the motor shaft of the motor to be tested are stably connected through the coupling through the circumferential positioning member and the connecting shaft; the circumferential positioning member can circumferentially synchronize the mechanical zero position of the driving device and the mechanical zero position of the connecting key, and the mechanical zero position of the motor to be tested can be conveniently positioned in a key alignment mode by the connecting key, so that the mechanical zero position of the driving device is aligned with the mechanical zero position of the motor to be tested, the circumferential positioning member also limits the rotation of the connected shaft part relative to the coupler, the corresponding shaft part is prevented from rotating in the test process, the accurate test of the motor to be tested is realized, and the test accuracy is ensured; in addition, the circumferential positioning member is used for keeping circumferential fixation between the coupled shaft component and the coupling, so that mechanical zero positions of the driving equipment/the motor to be tested can be positioned rapidly and accurately in the process of changing the shape, the changing time is shortened, and the testing efficiency is improved;
when the coupling tool for motor test is applied to motor tests of two different specifications, namely a 10-tooth spline shaft motor and a 14-tooth spline shaft motor of an electronic brake booster controller, the type changing time can be obviously shortened and is reduced to 15 minutes from original 2 hours; and the stability and the accuracy of the test process are obviously improved, and the rate of one test passing is improved from 75% to 99.8%.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model. It is evident that the drawings in the following description are only some embodiments of the present utility model and that other drawings may be obtained from these drawings without inventive effort for a person of ordinary skill in the art.
Fig. 1 shows a schematic structural diagram of a coupling tool for motor testing in an embodiment of the present utility model;
FIG. 2 shows a schematic cross-sectional structural view of the motor test coupling tooling shown in FIG. 1;
fig. 3 shows a schematic structural diagram of a coupling of the coupling fixture for motor test shown in fig. 1;
FIG. 4 shows a schematic structural view of a coupling shaft of the coupling tool for motor test shown in FIG. 1;
fig. 5 is a schematic structural diagram of a coupling tool for motor testing according to another embodiment of the present utility model;
FIG. 6 shows a schematic cross-sectional structural view of the motor test coupling tooling shown in FIG. 5;
fig. 7 shows a schematic structural diagram of a coupling of the coupling fixture for motor test shown in fig. 5;
FIG. 8 shows a schematic structural view of a coupling shaft of the coupling tool for motor testing shown in FIG. 5;
FIG. 9 illustrates an axial projection schematic view of a first shoulder of the coupling tooling for motor testing shown in FIG. 5;
fig. 10 shows an axial projection schematic view of a second shoulder of the coupling tooling for motor testing shown in fig. 5.
The main reference numerals:
10. coupling device
11. First shaft hole
12. Second shaft hole
20. Coupling shaft
22. Connecting key
30. Circumferential positioning member
33. Key groove
36. First groove
37. Second groove
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus a repetitive description thereof will be omitted.
The use of the terms "first," "second," and the like in the description herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. It should be noted that, without conflict, the embodiments of the present utility model and features in different embodiments may be combined with each other.
Fig. 1 illustrates a structure of a coupling tool for motor test in one embodiment, fig. 2 illustrates a cross-sectional structure of the coupling tool for motor test illustrated in fig. 1, and fig. 3 and 4 illustrate structures of a coupling and a coupling shaft of the coupling tool for motor test illustrated in fig. 1, respectively; fig. 5 shows a structure of a coupling tool for motor test in yet another embodiment, fig. 6 shows a cross-sectional structure of the coupling tool for motor test shown in fig. 5, and fig. 7 and 8 show structures of a coupling and a coupling shaft of the coupling tool for motor test shown in fig. 5, respectively; referring to fig. 1 to 8, the coupling tool for motor test provided by the embodiment of the utility model includes:
a coupling 10 having a first end 10a for coupling with a drive shaft of a drive apparatus and a second end 10b opposite the first end 10 a;
a coupling shaft 20 coupled to the second end 10b and provided with a connection key 22 for coupling a motor shaft of the motor to be measured;
a circumferential positioning member 30, at least the drive shaft is coupled to the first end 10a by the circumferential positioning member 30, the circumferential positioning member 30 being adapted to circumferentially synchronize the mechanical zero position of the drive device and the mechanical zero position of the connecting key 22 and to limit rotation of the coupled shaft component relative to the coupling 10.
According to the coupling tool for motor test, the driving shaft of the driving device and the motor shaft of the motor to be tested are stably connected through the coupling 10 through the circumferential positioning member 30 and the connecting shaft 20; the circumferential positioning member 30 can circumferentially synchronize the mechanical zero position of the driving device and the mechanical zero position of the connecting key 22, and the mechanical zero position of the motor to be tested can be conveniently positioned in a key alignment mode with the connecting key 22, so that the mechanical zero position of the driving device is aligned with the mechanical zero position of the motor to be tested, the circumferential positioning member 30 also limits the rotation of the connected shaft part relative to the coupler 10, the corresponding shaft part is prevented from rotating in the test process, the accurate test of the motor to be tested is realized, and the test accuracy is ensured; in addition, the circumferential positioning member 30 is used for keeping circumferential fixation between the coupled shaft component and the coupling 10, so that mechanical zero positions of the driving equipment/the motor to be tested can be positioned rapidly and accurately in the process of changing the shape, the changing time is shortened, and the testing efficiency is improved.
In some embodiments, the circumferential locating members 30 are positioned in circumferential alignment with the mechanical zero position of the coupled shaft component and circumferentially interfere with the movement of the coupled shaft component relative to the coupling 10.
The circumferential positioning member 30 is disposed at a position circumferentially aligned with the mechanical zero position of the coupled shaft component, so that when the corresponding shaft component is coupled to the coupling 10 through the circumferential positioning member 30, i.e. the mechanical zero position of the corresponding shaft component is positioned at the circumferential positioning member 30, thereby facilitating the alignment of the mechanical zero position of the driving device with the mechanical zero position of the motor to be tested. Further, the circumferential positioning members 30 interfere circumferentially with the movement of the coupled shaft members relative to the coupling 10, and the rotation of the coupled shaft members relative to the coupling 10 can be restricted without requiring a complicated fixing structure, so that the coupled shaft members and the coupling 10 remain circumferentially fixed.
In some embodiments, the circumferential positioning member 30 comprises: a key groove 33 formed in the first shaft hole 11 of the first end 10 a; a flat key (not specifically shown in the figure) embedded in the shaft wall of the driving shaft and circumferentially aligned with the mechanical zero position of the driving device; as the drive shaft is inserted into the first shaft hole 11, the flat key snaps into the key groove 33 and circumferentially abuts the drive shaft and the key groove 33.
The key groove 33 may be formed in the first shaft hole 11 by milling; the shaft wall of the driving shaft can also be provided with a slotted hole for the flat key to be partially embedded in by milling, and the slotted hole is circumferentially aligned with the mechanical zero position of the driving device. Through the flat key clamping mode, the flat key which is circumferentially aligned with the mechanical zero position of the driving device is embedded in the shaft wall of the driving shaft, so that the flat key is clamped into the key groove 33 of the first shaft hole 11 in the process of inserting the driving shaft into the first shaft hole 11, circumferentially abuts against the driving shaft and the key groove 33, the driving device can be effectively prevented from rotating relative to the coupler 10 in the testing process, and the high torque transmission test is conveniently carried out on the motor to be tested.
In some embodiments, the axial extension of the keyway 33 is greater than or equal to the axial extension of the flat key. In this way, the key groove 33 can be easily adapted to drive shafts/flat keys of different axial specifications at the time of the mold change.
In some embodiments, the circumferential positioning member 30 further comprises: the set screw 34 is inserted radially into the keyway 33 from the outer wall of the first end 10a to bear against the flat key. The flat key is prevented from falling off by the laterally inserted set screw 34 abutting against the flat key, and the flat key is made to stably circumferentially abut against the drive shaft and the key groove 33.
In some embodiments, the circumferential positioning member 30 comprises: a non-circular first groove 36 and a first shoulder, which are respectively arranged on the end face of the first end 10a and the shaft wall of the driving shaft, and inserted into the first shaft hole 11 of the first end 10a along with the driving shaft, and the first shoulder is clamped into and circumferentially abuts against the first groove 36; wherein, the circumferential positioning component arranged on the shaft wall of the driving shaft is circumferentially aligned with the mechanical zero position of the driving equipment; a non-circular second groove 37 and a second shoulder 38 respectively provided on the end face of the second end 10b and the shaft wall of the coupling shaft 20, inserted into the second shaft hole 12 of the second end 10b along with the coupling shaft 20, the second shoulder 38 being snapped into and circumferentially abutting the second groove 37; wherein the circumferential positioning member (the second shoulder 38 in this embodiment) provided to the shaft wall of the coupling shaft 20 is circumferentially aligned with the mechanical zero position of the connecting key 22, and the circumferential positioning member (the second groove 37 in this embodiment) provided to the end face of the second end 10b is circumferentially aligned with the circumferential positioning member (the first groove 36 in this embodiment) provided to the end face of the first end 10 a.
The first shoulder is clamped into and circumferentially abuts against the first groove 36 when the driving shaft is inserted into the first shaft hole 11 through the non-circular first groove 36 and the first shoulder, so that rotation of the driving device relative to the coupler 10 is prevented; the second shoulder 38 is clamped into and circumferentially abuts against the second groove 37 when the coupling shaft 20 is inserted into the second shaft hole 12 through the non-circular second groove 37 and the second shoulder 38, so that the coupling shaft 20 is prevented from rotating relative to the coupling 10; and the circumferential positioning members arranged on the driving shaft and the mechanical zero position circumferential alignment of the driving equipment, the circumferential positioning members arranged on the coupling shaft 20 and the mechanical zero position circumferential alignment of the connecting keys 22 and the circumferential positioning members arranged on the two ends of the coupler 10 are circumferentially aligned, so that when the driving shaft and the coupling shaft 20 are coupled to the coupler 10, the precise alignment of the mechanical zero position can be realized at the circumferential positioning members 30.
In some embodiments, the first groove 36 is formed on an end surface of the first end 10a, the first groove 36 is axially recessed and circumferentially surrounds the first shaft hole 11, the first shoulder is formed on a shaft wall of the driving shaft, and the first shoulder is connected with a first insertion portion of the driving shaft for inserting into the first shaft hole 11 and circumferentially exceeds the first insertion portion; the second groove 37 is formed on the end surface of the second end 10b, the second groove 37 is axially recessed and circumferentially surrounds the second shaft hole 12, the second shoulder 38 is formed on the shaft wall of the coupling shaft 20, and the second shoulder 38 is connected with the second insertion portion 24 of the coupling shaft 20 for inserting into the second shaft hole 12 and circumferentially extends beyond the second insertion portion 24.
The first groove 36 which is formed on the end face of the first end 10a, axially recessed and circumferentially surrounds the first shaft hole 11, and the first shoulder which is formed on the shaft wall of the driving shaft, is connected with the first insertion part of the driving shaft and circumferentially exceeds the first insertion part, so that the driving shaft and the coupling 10 are circumferentially fixed as the first insertion part is inserted into the first shaft hole 11, the first shoulder is accurately clamped into the first groove 36; by the second groove 37 which is formed in the end surface of the second end 10b, axially recessed, and circumferentially surrounds the second shaft hole 12, and the second shoulder 38 which is formed in the shaft wall of the coupling shaft 20, connects the second insertion portion 24 of the coupling shaft 20, and circumferentially exceeds the second insertion portion 24, it is achieved that the second shoulder 38 is accurately engaged into the second groove 37 as the second insertion portion 24 is inserted into the second shaft hole 12, and the coupling shaft 20 and the coupling 10 are circumferentially fixed. And the motor shaft and the coupling shaft 20 can be circumferentially and firmly connected through external splines on the motor shaft and the connecting keys 22 of the coupling shaft 20.
FIG. 9 shows an axial projection of a first shoulder of the coupling tooling for motor testing shown in FIG. 5, and FIG. 10 shows an axial projection of a second shoulder of the coupling tooling for motor testing shown in FIG. 5; as shown in connection with fig. 5-10, in some embodiments, the first groove 36 is along a first radial line X of the first shaft bore 11 1 The second groove 37 extends along a second radial line X of the second axial bore 12 2 Extending; when the first shoulder 35 snaps into the first recess 36 and the second shoulder 38 snaps into the second recess 37, the mechanical zero 440 of the driving device 44 and the mechanical zero 220 of the connecting key 22 fall into a first radial line X 1 And a second radial line X 2 A plane is formed.
With the driving shaft 40 inserted into the first shaft hole 11 and the coupling shaft 20 inserted into the second shaft hole 12, the first shoulder 35 is engaged with the first groove 36 and the second grooveThe shoulder 38 snaps into the second recess 37, the mechanical zero 440 of the drive device 44 and the mechanical zero 220 of the connecting key 22 falling in the direction of extension (first radial line X) from the first recess 36 1 ) And the extending direction of the second groove 37 (second radial line X 2 ) The formed plane can facilitate the accurate alignment of the mechanical zero position 440 of the driving device 44 and the mechanical zero position of the motor to be tested (the alignment of the mechanical zero position of the motor to be tested and the mechanical zero position 220 of the connecting key 22 can be conveniently realized by the key alignment mode of the external spline on the motor shaft and the connecting key 22).
In other embodiments, the first groove 36 and the first shoulder may be interchanged, that is, the first groove 36 is formed in the shaft wall of the driving shaft and the first shoulder is formed on the end face of the first end 10a of the coupling 10, so that the first shoulder can be accurately clamped into the first groove 36 as the first insertion portion of the driving shaft is inserted into the first shaft hole 11 of the first end 10a, and the driving shaft and the coupling 10 are circumferentially fixed. The first recess 36 and the first shoulder may in particular be formed in the corresponding component by milling. The shape of the first groove 36 and the first shoulder may be set as desired as long as the circumferential anti-rotation function is achieved.
Similarly, in other embodiments, the second groove 37 and the second shoulder 38 may be disposed at the same position, that is, the second groove 37 may be formed in the shaft wall of the coupling shaft 20, and the second shoulder 38 may be formed on the end surface of the second end 10b of the coupling 10, so that the second shoulder 38 may be accurately engaged in the second groove 37 as the second insertion portion 24 of the coupling shaft 20 is inserted into the second shaft hole 12 of the second end 10b, thereby circumferentially fixing the coupling shaft 20 and the coupling 10. The second recess 37 and the second shoulder 38 may in particular be formed in the corresponding component by milling. The shapes of the second groove 37 and the second shoulder 38 may be set as required as long as the circumferential anti-rotation function is achieved.
Further, in each of the above embodiments, the circumferential positioning member 30 may further include: the positioning pin 39 radially penetrates the second shaft hole 12 of the second end 10b and the coupling shaft 20 to stably couple the coupling shaft 20 in the second shaft hole 12.
In summary, the coupling tool for motor test has at least the following beneficial effects:
the driving shaft 40 of the driving device 44 and the motor shaft of the motor to be measured are stably coupled through the coupling 10 by the circumferential positioning member 30 and the coupling shaft 20; the circumferential positioning member 30 can circumferentially synchronize the mechanical zero position 440 of the driving device 44 and the mechanical zero position 220 of the connecting key 22, and the mechanical zero position of the motor to be tested can be conveniently positioned in a key alignment mode with the connecting key 22, so that the mechanical zero position 440 of the driving device 44 is aligned with the mechanical zero position of the motor to be tested, the circumferential positioning member 30 also limits the rotation of the connected shaft component relative to the coupler 10, the corresponding shaft component is prevented from rotating in the test process, the accurate test of the motor to be tested is realized, and the test accuracy is ensured; in addition, the circumferential fixing between the coupled shaft component and the coupler 10 is realized through the circumferential positioning member 30, so that the mechanical zero position of the driving equipment/the motor to be tested can be quickly and accurately positioned in the process of changing the model, the model changing time is shortened, and the testing efficiency is improved;
when the coupling tool for motor test is applied to motor tests of two different specifications, namely a 10-tooth spline shaft motor and a 14-tooth spline shaft motor of an electronic brake booster controller, the type changing time can be obviously shortened and is reduced to 15 minutes from original 2 hours; and the stability and the accuracy of the test process are obviously improved, and the rate of one test passing is improved from 75% to 99.8%.
The foregoing is a further detailed description of the utility model in connection with the preferred embodiments, and it is not intended that the utility model be limited to the specific embodiments described. It will be apparent to those skilled in the art that several simple deductions or substitutions may be made without departing from the spirit of the utility model, and these should be considered to be within the scope of the utility model.
Claims (10)
1. Shaft coupling frock is used in motor test, its characterized in that includes:
a coupling having a first end for coupling with a drive shaft of a drive apparatus and a second end opposite the first end;
the connecting shaft is connected to the second end and is provided with a connecting key for connecting a motor shaft of the motor to be tested;
a circumferential locating member, at least the drive shaft being coupled to the first end by the circumferential locating member, the circumferential locating member being adapted to circumferentially synchronize the mechanical zero position of the drive apparatus with the mechanical zero position of the connecting key and to limit rotation of the coupled shaft component relative to the coupling.
2. The motor testing coupling tooling of claim 1, wherein the circumferential locating member is positioned in circumferential alignment with a mechanical zero position of the coupled shaft component and circumferentially interferes with movement of the coupled shaft component relative to the coupling.
3. The coupling tooling for motor testing of claim 2, wherein the circumferential locating member comprises:
the key groove is formed in the first shaft hole at the first end;
the flat key is embedded in the shaft wall of the driving shaft and circumferentially aligned with the mechanical zero position of the driving equipment;
and the flat key is clamped into the key groove along with the driving shaft inserted into the first shaft hole, and circumferentially abuts against the driving shaft and the key groove.
4. A coupling tooling for motor testing as set forth in claim 3, wherein said keyway has an axial extension greater than or equal to the axial extension of said flat key.
5. A coupling tooling for motor testing as set forth in claim 3, wherein said circumferential locating member further comprises:
and the set screw is radially inserted into the key slot from the outer wall of the first end to abut against the flat key.
6. A motor testing coupling fixture according to any one of claims 2-5, wherein said circumferential locating member comprises:
the first groove and the first shoulder are respectively arranged on the end face of the first end and the shaft wall of the driving shaft, the first shoulder is inserted into the first shaft hole of the first end along with the driving shaft, and the first shoulder is clamped into and circumferentially abuts against the first groove;
wherein, the circumferential positioning component arranged on the shaft wall of the driving shaft is circumferentially aligned with the mechanical zero position of the driving equipment;
a non-circular second groove and a second shoulder which are respectively arranged on the end face of the second end and the shaft wall of the connecting shaft, and inserted into the second shaft hole of the second end along with the connecting shaft, wherein the second shoulder is clamped into and circumferentially abuts against the second groove;
the circumferential positioning member arranged on the shaft wall of the coupling shaft is circumferentially aligned with the mechanical zero position of the connecting key, and the circumferential positioning member arranged on the end face of the second end is circumferentially aligned with the circumferential positioning member arranged on the end face of the first end.
7. The motor testing coupling tool according to claim 6, wherein the first groove is formed in an end face of the first end, the first groove is axially recessed and circumferentially surrounds the first shaft hole, the first shoulder is formed in a shaft wall of the driving shaft, and the first shoulder is connected with a first insertion portion of the driving shaft for being inserted into the first shaft hole and circumferentially exceeds the first insertion portion;
the second groove is formed in the end face of the second end, the second groove is axially recessed and circumferentially surrounds the second shaft hole, the second shoulder is formed in the shaft wall of the coupling shaft, and the second shoulder is connected with a second insertion portion of the coupling shaft, which is used for being inserted into the second shaft hole, and circumferentially exceeds the second insertion portion.
8. The motor testing coupling tooling of claim 7, wherein the first groove extends along a first radial line of the first shaft bore and the second groove extends along a second radial line of the second shaft bore;
when the first shoulder is clamped into the first groove and the second shoulder is clamped into the second groove, the mechanical zero position of the driving device and the mechanical zero position of the connecting key fall into a plane formed by the first radial line and the second radial line.
9. The motor testing coupling tooling of any one of claims 3-5, 7 or 8, wherein the circumferential locating member further comprises:
and the positioning pin shaft radially penetrates through the second shaft hole of the second end and the connecting shaft.
10. The motor testing coupling tooling of claim 6, wherein the circumferential locating member further comprises:
and the positioning pin shaft radially penetrates through the second shaft hole of the second end and the connecting shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320019594.5U CN218971691U (en) | 2023-01-05 | 2023-01-05 | Shaft coupling frock for motor test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320019594.5U CN218971691U (en) | 2023-01-05 | 2023-01-05 | Shaft coupling frock for motor test |
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| Publication Number | Publication Date |
|---|---|
| CN218971691U true CN218971691U (en) | 2023-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320019594.5U Active CN218971691U (en) | 2023-01-05 | 2023-01-05 | Shaft coupling frock for motor test |
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| Country | Link |
|---|---|
| CN (1) | CN218971691U (en) |
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2023
- 2023-01-05 CN CN202320019594.5U patent/CN218971691U/en active Active
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