CN220820183U - Linear loading aging testing device for screw rod stepping motor - Google Patents
Linear loading aging testing device for screw rod stepping motor Download PDFInfo
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- CN220820183U CN220820183U CN202322654634.6U CN202322654634U CN220820183U CN 220820183 U CN220820183 U CN 220820183U CN 202322654634 U CN202322654634 U CN 202322654634U CN 220820183 U CN220820183 U CN 220820183U
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- 238000009434 installation Methods 0.000 description 10
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Abstract
The utility model discloses a linear loading aging testing device of a screw rod stepping motor, which comprises a motor mounting plate, a nut plate, a sensor connecting plate and one or more tension springs, wherein the nut plate is driven by a nut to reciprocate along the axial direction of the motor to be tested; one end of the sensor connecting plate, which is opposite to the motor to be tested, is connected with a testing end of the tension sensor, and the tension sensor is fixedly arranged; one end of the tension spring is connected with the nut plate, and the other end of the tension spring is connected with the sensor connecting plate. One side of the nut plate is provided with a grating ruler and a grating reading head, wherein the grating ruler is axially arranged along the motor to be tested, the grating reading head is fixedly connected with the nut plate, and the grating reading head and the tension sensor are electrically connected with a control system. According to the utility model, the loading force is increased by adopting a tension spring mode, the moving stroke of the motor to be tested is not limited by the placing position of the tension spring, the motor to be tested can move to the maximum stroke, and the position change can be monitored in the testing process, so that the influence of the aging position accuracy can be better evaluated.
Description
Technical Field
The utility model relates to the technical field of motor testing, in particular to a linear loading aging testing device for a screw rod stepping motor.
Background
The traditional screw rod stepping motor loading aging can be divided into axial loading or radial loading, and the stress load is basically constant moment or nonlinear variation moment; secondly, most of loading mechanisms generally use brake or damping loading mechanisms, and the mechanism is more complicated in terms of assembly, cost, maintenance and the like.
The prior art also proposes a scheme for realizing linear loading by adopting a spring, but the scheme cannot feed back the real-time position of the aging process of the motor to be tested, cannot analyze the relation between the movement distance and the moment of the motor in detail, is still in an ideal stage, has low structural reliability, can only test loading by means of a compression spring, and can limit the movement stroke of the screw motor and the moment of the test (for example, when the spring is compressed to a limit, the screw stepping motor may not reach the stroke limit position).
In summary, how to design a linear loading motor aging testing device with reliable structure and unlimited motor movement stroke, and can synthesize multiple-aspect torque analysis to realize motor testing diversification is a technical problem to be solved at present.
Disclosure of utility model
The utility model provides a linear loading aging testing device for a screw rod stepping motor, which aims to solve the technical problems that a motor loading aging testing device in the prior art cannot feed back the real-time position of the aging process of a tested motor, test data are single, and the movement stroke of the motor is limited.
The technical scheme adopted for solving the technical problems is as follows: a linear loading aging testing device of a screw rod stepping motor comprises a motor mounting plate, a nut plate, a sensor connecting plate and one or more tension springs, wherein the motor mounting plate is used for fixing a motor to be tested; the nut plate is used for fixing a nut matched with the motor to be tested, and the nut plate is driven by the nut to reciprocate along the axial direction of the motor to be tested; one end of the sensor connecting plate, which is opposite to the motor to be tested, is connected with a testing end of the tension sensor, and the tension sensor is fixedly arranged; one end of the tension spring is connected with the nut plate, and the other end of the tension spring is connected with the sensor connecting plate.
One side of the nut plate is provided with a grating ruler and a grating reading head, wherein the grating ruler is axially arranged along the motor to be tested, the grating reading head is fixedly connected with the nut plate, and the grating reading head and the tension sensor are electrically connected with a control system.
Further, the device also comprises a base, wherein the motor mounting plate, the sensor connecting plate and the grid ruler are fixed with the base, and the nut plate and the base slide relatively.
Further, guide posts are fixed on two sides of the base, and the motor mounting plate, the nut plate and the sensor connecting plate all penetrate through the guide posts.
Further, a supporting plate is further arranged between the nut plate and the sensor connecting plate, and the supporting plate is fixedly arranged and is in running fit with the tail end of the screw rod of the motor to be tested.
Furthermore, the support plates are provided with spring holes which are in one-to-one correspondence with the tension springs and are used for the tension springs to pass through, so that the tension springs are stretched along the axial direction.
Further, tension spring columns are arranged on the opposite surfaces of the nut plate and the sensor connecting plate, and two ends of the tension springs are hooked on the tension spring columns.
Furthermore, a guide rod is fixed on one side of the base, a position sensor for controlling the maximum movement stroke of the motor to be tested is arranged on the guide rod, the position sensor and the motor to be tested are electrically connected with a control system, and when the nut plate and the position sensor are aligned, the motor to be tested stops moving.
Furthermore, U-shaped openings are formed in the motor mounting plate and the nut plate, a small mounting plate is fixed at the U-shaped opening, and the motor to be tested is fixed with the small mounting plate on the motor mounting plate; the nut is secured to a small mounting plate on the nut plate.
Further, a small bearing plate is fixed on the supporting plate, and a screw rod of the motor to be detected is connected with the small bearing plate through a bearing.
Further, a grating connecting plate is fixed on one side of the nut plate; and a grating reading head and a cable drag chain are fixed on the grating connecting plate.
Further, the test bench is further included, and the control system and the base are both placed on the test bench.
The beneficial effects of the utility model are as follows: according to the linear loading aging testing device for the screw rod stepping motor, the tension spring is used for axial loading, the loading force is increased in a tension spring mode, the moving stroke of the motor to be tested is not limited by the placing position of the tension spring, the motor can move to the maximum stroke, and after the grating is added, the position change can be monitored in the testing process, so that the influence of the aging position accuracy can be well evaluated.
Furthermore, the linear loading test of the screw rod stepping motor is realized through a perfect structural design, the testing device can ensure higher coaxiality, and the motor tests of different types can be met by increasing and decreasing the number of tension springs.
Drawings
The utility model will be further described with reference to the drawings and examples.
FIG. 1 is a perspective view of a particular embodiment of a linear loading burn-in device for a lead screw stepper motor according to the present utility model;
FIG. 2 is a perspective view of a test assembly according to the present utility model;
FIG. 3 is a schematic diagram of the assembly of a grating readhead according to this utility model.
In the figure, 1, a motor mounting plate, 2, a nut plate, 3, a sensor connecting plate, 4, a tension spring, 5, a motor to be tested, 501, a screw rod, 6, a grating ruler, 7, a grating reading head, 8, a base, 9, a guide post, 10, a supporting plate, 11, a tension spring post, 12, a spring hole, 13, a guide rod, 14, a position sensor, 15, a grating connecting plate, 16, a cable drag chain, 17, a U-shaped opening, 18, a small mounting plate, 19, a small bearing plate, 20, a tension sensor, 21, a control system, 22, a test bench, 23 and a test assembly.
Detailed Description
Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
Example 1:
As shown in fig. 1 and 2, a linear loading aging test device for a screw rod stepping motor comprises a motor mounting plate 1, a nut plate 2, a sensor connecting plate 3 and one or more tension springs 4, wherein the motor mounting plate 1 is used for fixing a motor 5 to be tested; the nut plate 2 is used for fixing a nut matched with the motor 5 to be tested, and the nut plate 2 is driven by the nut to reciprocate along the axial direction of the motor 5 to be tested; one end of the sensor connecting plate 3, which is opposite to the motor 5 to be tested, is connected with a testing end of the tension sensor 20, and the tension sensor 20 is fixedly arranged; one end of the tension spring 4 is connected with the nut plate 2, and the other end is connected with the sensor connecting plate 3.
The motor mounting plate 1, the nut plate 2 and the sensor connecting plate 3 are three plates which are arranged at intervals in parallel, the motor mounting plate 1 and the nut plate 2 are positioned on one side of the sensor connecting plate 3, the tension sensor 20 is positioned on the other side of the sensor connecting plate 3, during testing, the motor 5 to be tested rotates to drive the nut and the nut plate 2 to move towards the motor mounting plate 1, so that tension springs 4 apply tension to the sensor connecting plate 3, and the tension sensor 20 detects a tension value.
One side of the nut plate 2 is provided with a grating ruler 6 axially arranged along the motor 5 to be tested and a grating reading head 7 moving along the grating ruler 6, the grating reading head 7 is fixedly connected with the nut plate 2, and the grating reading head 7 and the tension sensor 20 are electrically connected with a control system. When the nut plate 2 moves along with the nut in a translational mode, the grating reading head 7 moves synchronously, and the grating reading head 7 reads the position of the grating ruler 6 opposite to the grating reading head, so that the position quantity change in the ageing process is read in real time in the testing process, the real-time position is fed back to the control system, and the whole running process distance is monitored.
When the tested motor reciprocates, the tension spring 4 is responsible for applying linear load, the tension sensor 20 feeds back load value, and the control system records tension and position value to realize linear loading aging test. In the utility model, the model of the tension sensor 20 is TJL-1, the model of the grating reading head 7 is HEDS-9730#250, the control system can comprise a controller and a display, the controller is a PLC or a singlechip, the grating reading head 7 and the tension sensor 20 transmit detection signals to the controller, and the controller outputs data to the display.
As shown in fig. 2, the opposite surfaces of the nut plate 2 and the sensor connecting plate 3 are respectively provided with a tension spring column 11, two ends of the tension spring 4 are hooked on the tension spring columns 11, and the tension spring 4 is assembled more simply and rapidly, so that the tension spring 4 can be replaced or increased or decreased conveniently and rapidly.
A grating connecting plate 15 is fixed on one side of the nut plate 2; the grating reading head 7 and the cable drag chain 16 are fixed on the grating connecting plate 15, and the grating reading head 7 is electrically connected with the control system through the cable drag chain 16.
Preferably, the device further comprises a base 8, the motor mounting plate 1, the sensor connecting plate 3 and the grating ruler 6 are fixed with the base 8, and the nut plate 2 and the base 8 slide relatively. All the components can be placed on the base 8, so that the whole carrying is convenient.
In order to ensure the coaxiality of the installation of the motor 5 to be tested and the straightness of the installation of the motor 5 to be tested and the spring, the guide posts 9 are preferably fixed on two sides of the base 8, and the motor mounting plate 1, the nut plate 2 and the sensor connecting plate 3 penetrate through the guide posts 9.
Example 2:
On the basis of the first embodiment, a supporting plate 10 is further arranged between the nut plate 2 and the sensor connecting plate 3, the supporting plate 10 is fixedly arranged and is in running fit with the tail end of the screw rod 501 of the motor 5 to be tested, and when the screw rod 501 rotates, the supporting plate 10 is kept fixed. The supporting plate 10 is used for supporting the tail end of the motor 5 to be tested, so that the screw rod 501 is prevented from tilting after the motor runs for a long time, and the nuts are difficult to move.
Preferably, the support plate 10 also passes through the guide post 9, so that positioning and installation are facilitated, and the tension springs 4 need to pass through the support plate 10, so that the support plate 10 is provided with spring holes 12 which are in one-to-one correspondence with the tension springs 4 and through which the tension springs 4 pass, so that the tension springs 4 stretch in the axial direction, and when the tension springs 4 are longer, the spring holes 12 can play a supporting role in the middle of the tension springs 4, so that the tension springs 4 are prevented from tilting or bending.
Example 3:
on the basis of the above embodiment, a guide rod 13 is further fixed on one side of the base 8, a position sensor 14 for controlling the maximum movement stroke of the motor 5 to be tested is arranged on the guide rod 13, the position sensor 14 and the motor 5 to be tested are electrically connected with the control system, and when the nut plate 2 and the position sensor 14 are aligned, the motor 5 to be tested stops moving.
The position sensor 14 is used for limiting protection in the aging test process, the position sensor 14 can be arranged in front of the motor mounting plate 1, the front refers to one side of the motor mounting plate 1 facing the nut plate 2, during the aging test, the nut drives the nut plate 2 to gradually move towards the motor mounting plate 1, and when the nut plate 2 moves to the axial position where the position sensor 14 is located, the control system sends a shutdown instruction to the motor 5 to be tested, so that the nut plate 2 is prevented from impacting the motor mounting plate 1.
Example 4:
On the basis of the embodiment, the motor mounting plate 1 and the nut plate 2 are provided with U-shaped openings 17, small mounting plates 18 are fixed at the U-shaped openings 17, and the motor 5 to be tested is fixed with the small mounting plates 18 on the motor mounting plate 1; the nut is secured to a small mounting plate 18 on the nut plate 2. The small mounting plate 18 has a small area and is not connected to the guide post 9.
Similarly, a small bearing plate 19 is fixed on the supporting plate 10, and a screw rod 501 of the motor 5 to be tested is connected with the small bearing plate 19 through a bearing. During installation, the motor 5 to be detected and the nuts can be firstly installed on the small installation plate 18 and the small bearing plate 19 outside the base 8, then the small installation plate 18 with the motor 5 to be detected is fixed with the motor installation plate 1, the small installation plate 18 with the nuts is fixed with the nut plate 2, the small bearing plate 19 is fixed with the support plate 10, and compared with the mode of being directly installed on the motor installation plate 1, the installation mode of the embodiment is more convenient and easy to operate. The tail end of the motor 5 to be tested is supported by the bearing in the small bearing plate 19, so that the inclination of the screw rod 501 after the motor runs for a long time is avoided, the running coaxiality is ensured, the running stability is kept, and the difficulty in moving the nut is avoided.
And the small mounting plate 18 is matched with the shapes of the nuts and the motors 5 to be tested, the small mounting plate 18 adopts a small-area design, and when the motors 5 to be tested with different models are replaced, only the small mounting plate 18 needs to be replaced.
In a further design, the utility model further comprises a test bench 22, wherein the control system 21 and the base 8 are both arranged on the test bench 22, a cavity is formed in the test bench 22, a power supply can be arranged in the test bench 22, as shown in fig. 1, the components above the base 8 form a test assembly 23, and rollers are arranged at the bottom of the test bench 22, so that the test bench is convenient to move.
In the description of the present utility model, it should be understood that the terms "front," "axial," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience of description and simplification of the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Furthermore, in the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In this specification, a schematic representation of the terms does not necessarily refer to the same embodiment. Furthermore, the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments.
With the above-described preferred embodiments according to the present utility model as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present utility model. The technical scope of the present utility model is not limited to the description, but must be determined according to the scope of claims.
Claims (10)
1. A linear loading aging test device of a screw rod stepping motor is characterized by comprising:
The motor mounting plate (1) is used for fixing a motor (5) to be tested;
The nut plate (2) is used for fixing a nut matched with the motor (5) to be tested, and the nut plate (2) is driven by the nut to reciprocate along the axial direction of the motor (5) to be tested;
The sensor connecting plate (3), one end of the sensor connecting plate (3) back to the motor (5) to be tested is connected with the testing end of the tension sensor (20), and the tension sensor (20) is fixedly arranged;
One end of the tension spring (4) is connected with the nut plate (2), and the other end of the tension spring (4) is connected with the sensor connecting plate (3);
One side of the nut plate (2) is provided with a grating ruler (6) axially arranged along the motor (5) to be tested and a grating reading head (7) moving along the grating ruler (6), the grating reading head (7) is fixedly connected with the nut plate (2), and the grating reading head (7) and the tension sensor (20) are electrically connected with the control system (21).
2. The lead screw stepper motor linear loading burn-in apparatus of claim 1, wherein: the device also comprises a base (8), wherein the motor mounting plate (1), the sensor connecting plate (3) and the grid ruler (6) are fixed with the base (8), and the nut plate (2) and the base (8) slide relatively.
3. The lead screw stepper motor linear loading burn-in apparatus of claim 2, wherein: guide posts (9) are fixed on two sides of the base (8), and the motor mounting plate (1), the nut plate (2) and the sensor connecting plate (3) all penetrate through the guide posts (9).
4. The lead screw stepper motor linear loading burn-in apparatus of claim 1, wherein: a supporting plate (10) is further arranged between the nut plate (2) and the sensor connecting plate (3), and the supporting plate (10) is fixedly arranged and is in running fit with the tail end of a screw rod (501) of the motor (5) to be tested.
5. The linear loading burn-in apparatus of claim 4, wherein: the support plates (10) are provided with spring holes (12) which are in one-to-one correspondence with the tension springs (4) and are used for the tension springs (4) to pass through so as to enable the tension springs (4) to stretch along the axial direction.
6. The lead screw stepper motor linear loading burn-in apparatus of claim 2, wherein: one side of the base (8) is also fixed with a guide rod (13), a position sensor (14) for controlling the maximum movement stroke of the motor (5) to be tested is arranged on the guide rod (13), the position sensor (14) and the motor (5) to be tested are electrically connected with a control system (21), and when the nut plate (2) is aligned with the position sensor (14), the motor (5) to be tested stops moving.
7. A lead screw stepper motor linear load burn-in apparatus as defined in claim 3, wherein: u-shaped openings (17) are formed in the motor mounting plate (1) and the nut plate (2), small mounting plates (18) are fixed at the U-shaped openings (17), and the motor (5) to be tested is fixed with the small mounting plates (18) on the motor mounting plate (1); the nut is fixed with a small mounting plate (18) on the nut plate (2).
8. The linear loading burn-in apparatus of claim 4, wherein: a small bearing plate (19) is fixed on the supporting plate (10), and a screw rod (501) of the motor (5) to be tested is connected with the small bearing plate (19) through a bearing.
9. The lead screw stepper motor linear loading burn-in apparatus of claim 1, wherein: a grating connecting plate (15) is fixed on one side of the nut plate (2); a grating reading head (7) and a cable drag chain (16) are fixed on the grating connecting plate (15).
10. The lead screw stepper motor linear loading burn-in apparatus of claim 1, wherein: the test bench (22) is further included, and the control system (21) and the base (8) are both placed on the test bench (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322654634.6U CN220820183U (en) | 2023-09-28 | 2023-09-28 | Linear loading aging testing device for screw rod stepping motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322654634.6U CN220820183U (en) | 2023-09-28 | 2023-09-28 | Linear loading aging testing device for screw rod stepping motor |
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| Publication Number | Publication Date |
|---|---|
| CN220820183U true CN220820183U (en) | 2024-04-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322654634.6U Active CN220820183U (en) | 2023-09-28 | 2023-09-28 | Linear loading aging testing device for screw rod stepping motor |
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| Country | Link |
|---|---|
| CN (1) | CN220820183U (en) |
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2023
- 2023-09-28 CN CN202322654634.6U patent/CN220820183U/en active Active
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