CN220206584U - Shaft torsion angle measuring device - Google Patents
Shaft torsion angle measuring device Download PDFInfo
- Publication number
- CN220206584U CN220206584U CN202321565548.1U CN202321565548U CN220206584U CN 220206584 U CN220206584 U CN 220206584U CN 202321565548 U CN202321565548 U CN 202321565548U CN 220206584 U CN220206584 U CN 220206584U
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- China
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- test piece
- changeover portion
- amesdial
- torsion angle
- string
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- 238000012360 testing method Methods 0.000 claims abstract description 85
- 230000007246 mechanism Effects 0.000 claims abstract description 7
- 238000004804 winding Methods 0.000 claims abstract description 6
- 238000005259 measurement Methods 0.000 abstract description 11
- 230000008859 change Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model belongs to the technical field of torsion angle measurement, in particular to a shaft torsion angle measuring device, the device includes first amesdial (2), second amesdial (5), changeover portion (8) and changeover portion (10) under the test piece on the test piece, shaft test piece (9) are fixed between two changeover portions, changeover portion (10) are fixed on test piece supporting flat board (11) under the test piece, changeover portion (8) are connected load loading mechanism on the test piece, two changeover portions are provided with the ring channel, ring channel internal fixation and winding of changeover portion (8) have first string (3) of connecting first amesdial (2) on the test piece, ring channel internal fixation and winding of changeover portion (10) have second string (6) of connecting second amesdial (5) under the test piece, two amesdial are fixed on stand (7). The torsion angle measuring device for the shaft is simple in composition, low in cost and high in practicality, and can be used for torsion angle measurement of different rotating parts.
Description
Technical Field
The application belongs to the technical field of torsion angle measurement, and particularly relates to a shaft torsion angle measurement device.
Background
In a mechanical transmission system there are a large number of shaft-like rotating parts. A static torsion test is required to be carried out to obtain the material performance of the material to verify the reliability and stability of the connection with other parts; in the shaft static torsion test, due to the different sizes of test pieces, the existing torsion angle measurement system, such as an encoder torsion angle measurement system, needs to select different types to be matched with shafts with different diameters, and has high cost.
Disclosure of Invention
In order to solve the technical problem, the application designs a shaft torsion angle measuring device, mainly include first amesdial, the second amesdial, changeover portion and changeover portion under the test piece on the test piece, the shaft test piece is fixed between changeover portion and the changeover portion under the test piece on the test piece, changeover portion is fixed on the test piece supports flat board under the test piece, changeover portion connects load loading mechanism on the test piece, changeover portion is provided with the ring channel along circumference under the test piece on the test piece, the ring channel internal fixation of changeover portion has first string in the test piece and twines, first amesdial is connected to first string, ring channel internal fixation of changeover portion has the second string in the test piece and twines, the second string is connected to the second amesdial, first amesdial and second amesdial are fixed on the stand.
Preferably, the first dial indicator is fixed on the upright post through a first clamping dial indicator bracket, and the second dial indicator is fixed on the upright post through a second clamping dial indicator bracket.
Preferably, a plurality of mounting holes are formed in the upright post along the height direction, the first clamping dial gauge bracket and the second clamping dial gauge bracket are provided with long strip-shaped holes, and the long strip-shaped holes are adapted to be mounted to different mounting holes of the upright post through fastening bolts so as to adjust the heights of the first clamping dial gauge bracket and the second clamping dial gauge bracket.
Preferably, a plurality of threaded holes are formed in the annular groove along the circumferential direction, bolts are adaptively arranged in at least one threaded hole, the end portions of the first string or the second string are fixed on the bolts, and no more than one circle of the first string or the second string is wound in the annular groove.
Preferably, the support plate is assumed to be on the test bed by a cross beam.
Preferably, the load loading mechanism is two rams connected to the adapter section on the test piece to provide a couple.
The shaft torsion angle measuring device is simple in composition, low in cost and high in practicality, and can be used for torsion angle measurement of shaft rotating parts with different diameters.
Drawings
Fig. 1 is a schematic overall structure of a preferred embodiment of the shaft torsion angle measuring apparatus of the present application.
Fig. 2 is a schematic diagram of connection between the upper and lower adapter sections and the test piece.
Fig. 3 is a schematic diagram of the structure of the upper and lower switching sections.
The device comprises a 1-first clamping dial gauge bracket, a 2-first dial gauge, a 3-first string, a 4-second clamping dial gauge bracket, a 5-second dial gauge, a 6-second string, a 7-upright post, an 8-test piece upper switching section, an 81-annular groove, an 82-threaded hole, an 83-bolt, a 9-shaft test piece, a 10-test piece lower switching section, an 11-supporting flat plate and a 12-cross beam.
Detailed Description
For the purposes, technical solutions and advantages of the present application, the following describes the technical solutions in the embodiments of the present application in more detail with reference to the drawings in the embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of the present application. The embodiments described below by referring to the drawings are exemplary and intended for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.
The application provides a torsion angle measuring device of axle class, as shown in fig. 1, mainly include first amesdial 2, second amesdial 5, changeover portion 8 and changeover portion 10 under the test piece on the test piece, axle class test piece 9 is fixed between changeover portion 8 under test piece and changeover portion 10 under the test piece, changeover portion 10 is fixed on test piece supporting plate 11 under the test piece, changeover portion 8 connects load loading mechanism on the test piece, changeover portion 8 is provided with ring channel 81 along circumference under the test piece under the changeover portion 8 and the test piece, the ring channel internal fixation of changeover portion 8 has first string 3 to twine on the test piece, first amesdial 2 is connected to first string 3, the ring channel internal fixation of changeover portion 10 under the test piece has second string 6 to twine, second amesdial 5 is connected to second string 6, first amesdial 2 and second amesdial 5 are fixed on stand 7.
In some alternative embodiments, the first dial indicator 2 is fixed to the upright 7 by the first clamping dial indicator bracket 1, and the second dial indicator 5 is fixed to the upright 7 by the second clamping dial indicator bracket 4.
The string of this application is inelastic string, and test piece 9 passes through bolt or key connection with upper and lower changeover portion of test piece, and during the use, with upper and lower changeover portion of axle type test piece 9 and test piece be connected, install two amesdials on stand 7, adjust the amesdial to with the test piece upper and lower changeover portion's ring channel 81 equal height, link together the measuring end of string and amesdial. Winding the other end of the string around the annular groove on the upper and lower switching sections and fixing the string on the annular groove; in the torque loading process, the upper switching section and the test piece rotate together, so that the string is driven to wind or unwind together. Finally, the torsion angle of the test piece is calculated by measuring the length change of the string wound on the concentric annular groove of the switching section of the test piece, and the torsion angle is realized by the following formula.
Wherein:
r 1 the radius of the annular groove of the upper adapter section 8 of the test piece;
ΔL 1 -the amount of change in length of the first string 3;
r 2 the radius of the annular groove of the lower test piece adapter section 10;
ΔL 2 ——the amount of change in the length of the second string 6;
θ—the torsion angle of the torsion axis, in degrees.
In some optional embodiments, the upright post 7 is provided with a plurality of mounting holes along the height direction, the first clamping dial gauge bracket 1 and the second clamping dial gauge bracket 4 are provided with elongated holes, and the elongated holes are adapted to be mounted to different mounting holes of the upright post 7 through fastening bolts so as to adjust the heights of the first clamping dial gauge bracket 1 and the second clamping dial gauge bracket 4.
According to the embodiment, the clamping dial indicator supports are fixed at different heights of the stand columns, alignment with annular grooves of the upper and lower switching sections of the test piece is achieved, in alternative embodiments, the clamping dial indicator supports can be adjusted in height in the form of sliding rail sliding blocks, the bottom plates of the first clamping dial indicator support 1 and the second clamping dial indicator support 4 are set to be sliding blocks, sliding grooves for sliding the sliding blocks are formed in the corresponding stand columns 7, through holes are formed in two sides of the sliding grooves, and after the sliding blocks slide in place, the sliding blocks are locked through screws penetrating through the through holes, so that the two clamping dial indicator supports are adjusted to be aligned with the annular grooves of the upper and lower switching sections of the test piece.
In some alternative embodiments, a plurality of threaded holes 82 are circumferentially arranged in the annular groove 81, at least one of the threaded holes is provided with a bolt 83 in a fit manner, and the end of the first string 3 or the second string 6 is fixed on the bolt 83 and is wound in the annular groove 81 for no more than one time.
As shown in fig. 2 and 3, a screw hole 82 is generally provided every 120 ° along the circumferential direction of the annular groove 81, and after a screw 83 is mounted to one of the screw holes 82, the string is fastened by the screw, and the string can be secured around 1/3 to 2/3 of the circumference of the annular groove 81.
In some alternative embodiments, the support plate 11 is assumed to be on a test stand by means of a cross beam 12.
In some alternative embodiments, the load loading mechanism is two rams coupled to the adapter section 8 on the test piece to provide a force couple.
According to the torsion testing device, the application of the rotation load to the upper test piece switching section 8 is realized through the couple actuating cylinder, the upper test piece switching section 8 drives the shaft type test piece 9 to rotate, meanwhile, the lower end of the shaft type test piece 9 is fixed with the lower test piece switching section 10, so that torsion of the shaft type test piece 9 is realized, during initial rotation, the rigidity of the shaft type test piece is larger than the connection locking force of the shaft type test piece 9, the upper test piece switching section 8 and the lower test piece switching section 10, the connection between the shaft type test piece 9 and the upper test piece switching section 8 and the lower test piece switching section 10 is firm, after a part of connection gap is eliminated, the shaft type test piece 9 starts to tend to twist, the clamp matched with the test piece can be replaced according to the section of the torsion shaft to realize the measurement of the torsion angle of the shaft, and the torsion angle of the rotating parts (shaft, disc and cylinder) with different diameters and different sections (non-standard circular sections) can be used for the measurement of the torsion angle of the rotating parts with different lengths; the torsion angle of the torsion component is calculated by arranging the upper and lower switching sections, so that the accuracy of the torsion angle can be improved, and the error influence on torsion angle measurement of the torsion shaft caused by the clearance and the non-pure rigid deformation of the fixed end, which are caused by the installation of the clamp and the test piece, is reduced. Meanwhile, the torsion angle measuring device is simple in composition, low in cost and high in practicality, and can be used for torsion angle measurement of different rotating parts.
The foregoing is merely specific embodiments of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions easily conceivable by those skilled in the art within the technical scope of the present application should be covered in the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (6)
1. The utility model provides a torsion angle measuring device of axle class, a serial communication port, including first amesdial (2), second amesdial (5), changeover portion (8) and changeover portion (10) under the test piece on the test piece, axle class test piece (9) are fixed between changeover portion (8) under the test piece and changeover portion (10), changeover portion (10) are fixed on test piece supporting flat board (11) under the test piece, changeover portion (8) are connected load loading mechanism on the test piece, changeover portion (8) are provided with ring channel (81) along circumference under the test piece under changeover portion (10) on the test piece, ring channel internal fixation and winding of changeover portion (8) have first string (3) on the test piece, first amesdial (2) are connected to first string (3), ring channel internal fixation and winding of changeover portion (10) have second string (6) under the test piece, second string (6) connect second amesdial (5), first amesdial (2) and second amesdial (5) are fixed on stand (7).
2. The shaft torsion angle measuring device according to claim 1, wherein the first dial indicator (2) is fixed on the upright (7) through the first clamping dial indicator bracket (1), and the second dial indicator (5) is fixed on the upright (7) through the second clamping dial indicator bracket (4).
3. The shaft torsion angle measuring device according to claim 2, wherein a plurality of mounting holes are formed in the upright (7) along the height direction, the first clamping dial gauge bracket (1) and the second clamping dial gauge bracket (4) are provided with elongated holes, and the elongated holes are adaptively mounted to different mounting holes of the upright (7) through fastening bolts so as to adjust the heights of the first clamping dial gauge bracket (1) and the second clamping dial gauge bracket (4).
4. The shaft torsion angle measuring device according to claim 1, characterized in that a plurality of threaded holes (82) are circumferentially arranged in the annular groove (81), at least one of the threaded holes is provided with a bolt (83) in a fitting manner, the end of the first string (3) or the second string (6) is fixed on the bolt (83), and no more than one winding is performed in the annular groove (81).
5. The shaft-like torsion angle measuring device according to claim 1, characterized in that the support plate (11) is assumed on a test stand by means of a cross beam (12).
6. The shaft torsion angle measuring device according to claim 1, characterized in that the load loading mechanism is two rams connected to the adapter section (8) on the test piece to provide a couple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321565548.1U CN220206584U (en) | 2023-06-19 | 2023-06-19 | Shaft torsion angle measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321565548.1U CN220206584U (en) | 2023-06-19 | 2023-06-19 | Shaft torsion angle measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220206584U true CN220206584U (en) | 2023-12-19 |
Family
ID=89140108
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321565548.1U Active CN220206584U (en) | 2023-06-19 | 2023-06-19 | Shaft torsion angle measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220206584U (en) |
-
2023
- 2023-06-19 CN CN202321565548.1U patent/CN220206584U/en active Active
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