CN215374459U - Device for compression test of wave spring - Google Patents
Device for compression test of wave spring Download PDFInfo
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- CN215374459U CN215374459U CN202121196263.6U CN202121196263U CN215374459U CN 215374459 U CN215374459 U CN 215374459U CN 202121196263 U CN202121196263 U CN 202121196263U CN 215374459 U CN215374459 U CN 215374459U
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- cam
- end cover
- rotating shaft
- compression test
- wave spring
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Abstract
A device for a wave spring compression test comprises a shell, a driving motor, a rotating shaft, an upper cam and a lower cam, wherein the shell comprises an upper end cover and a lower end cover, the upper end cover is fixedly connected to the lower end cover, a yielding hole is reserved in the upper end cover, a yielding groove is reserved in the lower end cover and used for mounting the rotating shaft, the upper cam and the lower cam, the bottom end of the rotating shaft is supported at the bottom of the yielding groove, the upper end of the rotating shaft extends to the upper end cover and is driven by the driving motor, the upper cam is fixedly mounted at the upper part of the rotating shaft, the lower cam is located below the upper cam and is sleeved on the rotating shaft in an empty mode, a spring is placed between the lower end face of the lower cam and the yielding groove, a plurality of teeth are arranged on the lower end face of the upper cam and the upper end face of the lower cam in the circumferential direction, the teeth of the upper cam are matched with the teeth of the lower cam, and the lower cam is circumferentially fixed with the shell through a stop pin; the lower part of the rotating shaft is fixedly connected with an induction bracket which corresponds to a counter arranged on the lower end cover, and a position sensor is fixedly arranged in the shell and corresponds to the lower cam; an oil plug is arranged on the side wall of the lower end cover.
Description
Technical Field
The utility model relates to the technical field of spring test equipment, in particular to a device for a wave spring compression test.
Background
The wave spring is widely applied to the field of automobile gearboxes, in the practical use process, the wave spring can increase the compression times along with the increase of the automobile service time, the performance of the wave spring can be attenuated after long-time operation and back-and-forth compression, such as the attenuation of spring force, the change of spring stroke and the like, and the wave spring can be influenced by temperature and lubricating oil in the use process. The conventional spring test device does not consider the actual working condition and working environment of the spring, test equipment is not suitable to be moved frequently, and the test can only be carried out in a fixed place, so that the test process is carried out under the condition of normal temperature in the air, lubricating oil is not added in the test process, and after the test of the conventional spring test device, the attenuation condition of the spring is greatly different from the actual condition.
Disclosure of Invention
In order to solve the problems in the prior art, the utility model provides a device for a compression test of a wave spring, which can be filled with lubricating oil and can be placed in a temperature bin to simulate the actual use environment of the spring, and the technical scheme of the utility model is as follows:
a device for a wave spring compression test comprises a shell, a driving motor, a rotating shaft, an upper cam and a lower cam, wherein the shell comprises an upper end cover and a lower end cover, the upper end cover is fixedly connected to the lower end cover, a yielding hole is reserved in the upper end cover, a yielding groove is reserved in the lower end cover and used for mounting the rotating shaft, the upper cam and the lower cam, the bottom end of the rotating shaft is supported at the bottom of the yielding groove, the upper end of the rotating shaft extends to the upper end cover and is driven by the driving motor, the upper cam is fixedly mounted at the upper portion of the rotating shaft, the lower cam is located below the upper cam and is sleeved on the rotating shaft in a hollow mode, a spring is placed between the lower end face of the lower cam and the yielding groove, a plurality of teeth are arranged on the lower end face of the upper cam and the upper end face of the lower cam in the circumferential direction, the teeth of the upper cam are matched with the teeth of the lower cam, and the lower cam is circumferentially fixed with the shell through a stop pin; the lower part of the rotating shaft is fixedly connected with an induction bracket which corresponds to a counter arranged on the lower end cover, and a position sensor is fixedly arranged in the shell and corresponds to the lower cam; and an oil plug is arranged on the side wall of the lower end cover.
The tooth heights of the upper cam and the lower cam are the same as the working stroke of the spring.
The side surfaces of the upper cam and the lower cam, which are matched with the teeth, are inclined surfaces, and the inclined surfaces and the horizontal plane form an included angle of 30 degrees.
The receding groove of the lower end cover is in a stepped blind hole shape, the large-diameter section of the stepped blind hole is arranged above the small-diameter section, and the hole shoulder of the stepped blind hole is used for placing a spring.
A gasket is arranged on a hole shoulder of the stepped blind hole, and the upper end face of the gasket is used for placing a spring.
The groove bottom of the abdicating groove of the lower end cover is provided with a mounting groove which is used for supporting the rotating shaft and is in sliding fit with the bottom end of the rotating shaft.
The upper end of the rotating shaft is in spline fit with an output connecting sleeve of a driving motor, and the driving motor is installed on the shell.
The upper cam is arranged on the rotating shaft through a positioning pin.
The position sensor is an eddy current sensor, the position sensor is installed on the upper end cover, and a gap of 1mm is reserved between the position sensor and the lower cam.
The counter counts by detecting the number of times of rotation of the induction support, and the distance between the counter and the induction support is 2 mm.
Adopt above-mentioned technical scheme: the upper end cover is fixedly connected to the lower end cover, a yielding hole is reserved in the upper end cover, a yielding groove is reserved in the lower end cover and used for installing the rotating shaft, the upper cam and the lower cam, the bottom end of the rotating shaft is supported at the bottom of the yielding groove, the upper end of the rotating shaft extends to the upper end cover and is driven by the driving motor, the upper cam is fixedly installed on the upper portion of the rotating shaft, the lower cam is located below the upper cam and is sleeved on the rotating shaft in an empty mode, a spring is placed between the lower end face of the lower cam and the yielding groove, a plurality of teeth are arranged on the lower end face of the upper cam and the upper end face of the lower cam along the circumferential direction, the teeth of the upper cam are matched with the teeth of the lower cam, and the lower cam is circumferentially fixed with the shell through a stop pin; the lower part of the rotating shaft is fixedly connected with an induction bracket which corresponds to a counter arranged on the lower end cover, and a position sensor is fixedly arranged in the shell and corresponds to the lower cam; and an oil plug is arranged on the side wall of the lower end cover. Therefore, during the experiment, it is rotatory through driving motor drive pivot, the pivot drives the upper cam rotatory, the tooth of upper cam acts on the tooth of cam down, cause the lower cam to carry out up-and-down reciprocating motion, make the lower cam can the cyclic compression spring, such testing arrangement, can fill lubricating oil through the oil plug and place analogue spring's in the temperature storehouse actual conditions and operational environment in, and can judge whether the experiment is normally gone on through position sensor real-time judgement, through the counter record compression number of times, the result that the experiment reachs is little with actual conditions difference, the reliability is high.
The tooth heights of the upper cam and the lower cam are the same as the working stroke of the spring, so that each test is guaranteed to be carried out on the working stroke of the spring.
The side surfaces of the upper cam and the lower cam, which are matched with the teeth, are inclined planes, and the inclined planes and the horizontal plane form an included angle of 30 degrees, so that the situation of blocking when the upper cam rotates is avoided.
The receding groove of the lower end cover is in a stepped blind hole shape, the large-diameter section of the stepped blind hole is arranged above the small-diameter section, and the hole shoulder of the stepped blind hole is used for placing a spring. Put a gasket on the hole shoulder of ladder blind hole, the gasket up end is used for placing the spring, can select not co-altitude gasket according to the specification or the working stroke of spring to satisfy the spring of more specifications and test, promote testing device's commonality.
The upper end of the rotating shaft is in spline fit with an output connecting sleeve of the driving motor, so that the driving motor can drive the rotating shaft to rotate, and the driving motor is installed on the shell.
The upper cam is arranged on the rotating shaft through a positioning pin, so that the rotating shaft can drive the upper cam to rotate.
The position sensor is an eddy current sensor, the position sensor is installed on the upper end cover, a gap of 1mm is reserved between the position sensor and the lower cam, the precision of the position sensor is high under the gap, and whether the test process is normally carried out can be fed back through the position change condition of the lower cam.
The utility model is further described with reference to the drawings and the specific embodiments in the following description.
Drawings
FIG. 1 is an isometric view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic view of the present invention with the housing removed and the drive motor;
FIG. 5 is a schematic structural view of the rotating shaft and the upper cam;
fig. 6 is a schematic structural view of the lower cam.
Detailed Description
The utility model relates to an embodiment of a device for a compression test of a wave spring, wherein the spring involved in the embodiment is the wave spring:
referring to fig. 1-6, a device for wave spring compression test, includes casing, driving motor 3, pivot 11, upper cam 7, lower cam 9, the casing includes upper end cover 2, lower end cover 1, 2 fixed connection of upper end cover is on lower end cover 1, leaves the hole of stepping down on upper end cover 2, leaves the groove 12 of stepping down on lower end cover 1 and is used for installing pivot 11, upper cam 7, lower cam 9, and in this embodiment, upper cam 7 is arranged in the hole of stepping down of upper end cover 2, and lower cam 9 is arranged in the groove 12 of stepping down of lower end cover 1. The bottom end support of pivot 11 is at the tank bottom of groove 12 of stepping down, the 12 tank bottoms of groove of stepping down of lower end cover 1 are equipped with a mounting groove, the mounting groove be used for supporting pivot 11 and with 11 bottom sliding fit of pivot. The upper end of pivot 11 extends to upper end cover 2 and is driven by driving motor 3, and 16 spline fits of output adapter sleeve of pivot 11 upper end and driving motor 3 for driving motor 3 can drive pivot 11 rotatory, driving motor 3 installs on the casing, and in this embodiment, driving motor 3 passes through the bolt fastening on upper end cover 2. The upper cam 7 is fixedly installed on the upper portion of the rotating shaft 11, and the upper cam 7 is installed on the rotating shaft 11 through a positioning pin 17, so that the rotating shaft 11 can drive the upper cam 7 to rotate, wherein the positioning pin 17 is a roll pin in this embodiment. The lower cam 9 is located below the upper cam 7 and is sleeved on the rotating shaft 11 in an empty mode, a spring 13 is placed between the lower end face of the lower cam 9 and the abdicating groove 12, the abdicating groove 12 of the lower end cover 1 is in a stepped blind hole shape, the large-diameter section of the stepped blind hole is located above the small-diameter section, and the hole shoulder of the stepped blind hole is used for placing the spring 13. A gasket 10 is placed on the shoulder of the stepped blind hole, the upper end face of the gasket 10 is used for placing a spring 13, and the gaskets 10 with different heights can be selected according to the specification or the working stroke of the spring so as to meet the requirement of testing the springs with more specifications and improve the universality of the testing device. A plurality of teeth 14 are arranged on the lower end face of the upper cam 7 and the upper end face of the lower cam 9 along the circumferential direction, the teeth of the upper cam 7 are matched with the teeth of the lower cam 9, the number of the teeth of the upper cam 7 is consistent with that of the teeth of the lower cam 9, and the heights of the teeth of the upper cam 7 and the teeth of the lower cam 9 are consistent, wherein in the embodiment, the heights of the teeth of the upper cam 7 and the teeth of the lower cam 9 are both 3 mm. The lower cam 9 is provided with a pin hole 18, and the pin hole 18 is matched with a stop pin 8, so that the lower cam 9 and the shell are circumferentially fixed; the lower portion of the rotating shaft 11 is fixedly connected with an induction support 15, the induction support 15 corresponds to a counter 6 arranged on the lower end cover 1, the counter 6 counts by detecting the number of rotation times of the induction support 15, the distance between the counter 6 and the induction support 15 is 2mm, in the embodiment, the number of teeth of the upper cam 7 and the number of teeth of the lower cam 9 are four, and therefore 4 times of the number of rotation times of the induction support 15 detected by the counter 6 is the actual number of compression times of the spring. A position sensor 4 of fixed mounting corresponds with lower cam 9 in the casing, position sensor 4 is eddy current sensor, and position sensor 4 passes through the bolt and installs on upper end cover 2 to extend to the groove of stepping down 12 in, leave 1 mm's clearance between position sensor 4 and the lower cam 9, position sensor 4's precision is higher under this clearance, can be through the position change condition feedback test process of cam 9 down whether normally go on. And an oil plug 5 is arranged on the side wall of the lower end cover 1. The heights of the teeth 14 of the upper cam 7 and the lower cam 9 are the same as the working stroke of the spring 13, so that each test is ensured to be carried out on the working stroke of the spring. The side surfaces of the upper cam 7 and the lower cam 9, which are matched with the teeth 14, are inclined surfaces, and the inclined surfaces and the horizontal plane form an included angle of 30 degrees, so that the upper cam 7 is prevented from being locked when rotating. Therefore, during the experiment, it is rotatory to drive pivot 11 through driving motor 3, pivot 11 drives cam 7 rotatoryly, the tooth of upper cam 7 acts on the tooth of cam 9 down, cause cam 9 to carry out up-and-down reciprocating motion down, make cam 9 can the cyclic compression spring 13 down, such testing arrangement, can fill lubricating oil through oil plug 5 and place analog spring's in the temperature storehouse actual conditions and operational environment in, and can normally go on through position sensor 4 real-time judgement test, record the compression number of times through counter 6, the result that the experiment reachs is not big with the actual conditions difference, high reliability.
During the experiment, pour into lubricating oil from oil plug 5 into, driving motor 3 drive pivot 11 is rotatory, and pivot 11 drives cam 7 rotatory, and the tooth of upper cam 7 acts on the tooth of cam 9 down, causes cam 9 to carry out up-and-down reciprocating motion for cam 9 can circulate compression spring 13 down, and in the testing process, can judge whether the experiment normally goes on in real time through position sensor 4, and 4 times that 15 rotatory times of induction support that counter 6 detected are the actual compression number of times of spring.
Claims (10)
1. A device for wave spring compression test, its characterized in that: comprises a shell, a driving motor (3), a rotating shaft (11), an upper cam (7) and a lower cam (9), wherein the shell comprises an upper end cover (2) and a lower end cover (1), the upper end cover (2) is fixedly connected on the lower end cover (1), a yielding hole is reserved on the upper end cover (2), a yielding groove (12) is reserved on the lower end cover (1) and is used for installing the rotating shaft (11), the upper cam (7) and the lower cam (9), the bottom end of the rotating shaft (11) is supported at the groove bottom of the yielding groove (12), the upper end of the rotating shaft (11) extends to the upper end cover (2) and is driven by the driving motor (3), the upper cam (7) is fixedly installed on the upper part of the rotating shaft (11), the lower cam (9) is positioned below the upper cam (7) and is sleeved on the rotating shaft (11) in an empty mode, a spring (13) is arranged between the lower end surface of the lower cam (9) and the yielding groove (12), a plurality of teeth (14) are arranged on the lower end face of the upper cam (7) and the upper end face of the lower cam (9) along the circumferential direction, the teeth of the upper cam (7) are matched with the teeth of the lower cam (9), and the lower cam (9) is circumferentially fixed with the shell through a stop pin (8); the lower part of the rotating shaft (11) is fixedly connected with an induction bracket (15) which corresponds to a counter (6) arranged on the lower end cover (1), and a position sensor (4) is fixedly arranged in the shell and corresponds to the lower cam (9); an oil plug (5) is arranged on the side wall of the lower end cover (1).
2. The apparatus for a wave spring compression test of claim 1, wherein: the heights of the teeth (14) of the upper cam (7) and the lower cam (9) are the same as the working stroke of the spring (13).
3. The apparatus for a wave spring compression test of claim 1, wherein: the side surfaces of the upper cam (7) and the lower cam (9) which are matched with the teeth (14) are inclined planes, and the inclined planes and the horizontal plane form an included angle of 30 degrees.
4. The apparatus for a wave spring compression test of claim 1, wherein: the abdicating groove (12) of the lower end cover (1) is in a stepped blind hole shape, the large-diameter section of the stepped blind hole is arranged above the small-diameter section, and the hole shoulder of the stepped blind hole is used for placing the spring (13).
5. The apparatus for a wave spring compression test of claim 4, wherein: a gasket (10) is arranged on the shoulder of the stepped blind hole, and the upper end face of the gasket (10) is used for placing a spring (13).
6. The apparatus for a wave spring compression test of claim 1, wherein: the tank bottom of the abdicating groove (12) of the lower end cover (1) is provided with a mounting groove which is used for supporting the rotating shaft (11) and is in sliding fit with the bottom end of the rotating shaft (11).
7. The apparatus for a wave spring compression test of claim 1, wherein: the upper end of the rotating shaft (11) is in spline fit with an output connecting sleeve (16) of the driving motor (3), and the driving motor (3) is installed on the shell.
8. The apparatus for a wave spring compression test of claim 1, wherein: the upper cam (7) is arranged on the rotating shaft (11) through a positioning pin (17).
9. The apparatus for a wave spring compression test of claim 1, wherein: the position sensor (4) is an eddy current sensor, the position sensor (4) is installed on the upper end cover (2), and a gap of 1mm is reserved between the position sensor (4) and the lower cam (9).
10. The apparatus for a wave spring compression test of claim 1, wherein: the counter (6) counts by detecting the rotating times of the induction bracket (15), and the distance between the counter (6) and the induction bracket (15) is 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121196263.6U CN215374459U (en) | 2021-05-31 | 2021-05-31 | Device for compression test of wave spring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121196263.6U CN215374459U (en) | 2021-05-31 | 2021-05-31 | Device for compression test of wave spring |
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| Publication Number | Publication Date |
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| CN215374459U true CN215374459U (en) | 2021-12-31 |
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| CN202121196263.6U Active CN215374459U (en) | 2021-05-31 | 2021-05-31 | Device for compression test of wave spring |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113310678A (en) * | 2021-05-31 | 2021-08-27 | 重庆青山工业有限责任公司 | Device for compression test of wave spring |
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2021
- 2021-05-31 CN CN202121196263.6U patent/CN215374459U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113310678A (en) * | 2021-05-31 | 2021-08-27 | 重庆青山工业有限责任公司 | Device for compression test of wave spring |
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