CN115096505A - Vertical torque sensor calibration tool - Google Patents
Vertical torque sensor calibration tool Download PDFInfo
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- CN115096505A CN115096505A CN202210714788.7A CN202210714788A CN115096505A CN 115096505 A CN115096505 A CN 115096505A CN 202210714788 A CN202210714788 A CN 202210714788A CN 115096505 A CN115096505 A CN 115096505A
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- 238000000034 method Methods 0.000 abstract description 10
- 238000002474 experimental method Methods 0.000 abstract description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000005259 measurement Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L25/00—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency
- G01L25/003—Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency for measuring torque
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a vertical torque sensor calibration tool, which comprises: the device comprises a supporting assembly, a loading disc, an air-floating bearing assembly, a hanging wire and weights; the existing horizontal calibration tool is abandoned, and the vertical string weight assembly is matched with the air bearing assembly to eliminate mechanical friction generated in the torque loading process to the maximum extent, so that the whole device can provide high-precision standard torque; in addition, the position of the hanging wire and the clamping position of the supporting shaft can be adjusted according to experiment requirements, clockwise torque loading or anticlockwise torque loading is achieved, and the device has a good application prospect and a wide application range.
Description
Technical Field
The invention relates to the technical field of micro torque measurement, in particular to a vertical torque sensor calibration tool.
Background
The torque measurement is an important content in each link of mechanical product production, and the torque is also a key parameter for evaluating the quality of mechanical products such as bearings, speed reducers and the like. There are three main ways to measure torque: energy methods, balance methods, and transmission methods, wherein transmission is also called torsion shaft method, which is a method of measuring torque based on changes in physical parameters of the elastic shaft generated when transmitting torque, such as deformation, strain and stress of the elastic shaft. In order to realize accurate measurement of torque, a torque sensor designed based on a transmission method is mostly adopted in the current experiment, the torque sensor needs to be calibrated before use to obtain characteristic indexes such as linearity, sensitivity, hysteresis, repeatability and the like, the existing torque sensor calibration tool is mostly in a horizontal type, and due to the action of gravity, a larger radial load can be generated on a torque input shaft and a torque output shaft of the measured torque sensor, so that larger mechanical friction exists, accurate standard torque cannot be provided, and the actual engineering requirement is difficult to meet.
Therefore, the design of the torque sensor calibration tool capable of providing the standard torque with sufficient accuracy has important engineering significance.
Disclosure of Invention
The present invention aims to solve at least to some extent one of the above-mentioned technical problems of the prior art.
Therefore, an object of the present invention is to provide a vertical torque sensor calibration tool, including:
the lower part of the support component is connected with a torque sensor, and a torque input shaft of the torque sensor penetrates through the support component and extends to the upper part of the support component;
the loading disc is circular, a mounting seat is arranged in the middle of the loading disc, and the torque input shaft is connected with the mounting seat; the circumferential direction of the loading disc is inwards recessed to form a first annular groove;
the air bearing assembly comprises two bearing seats, an air bearing, a support shaft and air guide pipes, wherein the two bearing seats are symmetrically arranged on two sides of the support assembly and are fixedly connected with the support assembly; the air bearing is arranged in the bearing seat, the support shaft is arranged in the air bearing, and two ends of the support shaft extend out of the bearing seat; one end of the air duct penetrates through the bearing seat and is arranged corresponding to the air bearing, and the other end of the air duct is communicated with an external high-pressure air source; a second annular groove is formed in the outer surface of the supporting shaft;
and one end of the hanging wire is fixedly connected with the loading disc, the other end of the hanging wire is clamped into the first annular groove and the second annular groove in sequence and then extends downwards, and the other end of the hanging wire is connected with one or more weights.
In the above technical solution, the outer surface of the support shaft is provided with the second annular groove, and it should be understood that both ends extending to the outside of the bearing seat are provided with the second annular grooves.
The invention has the beneficial effects that:
the existing horizontal calibration tool is abandoned, and the mechanical friction generated in the torque loading process is eliminated to the maximum extent by adopting a vertical hanging weight assembly and an air bearing assembly, so that the whole device can provide high-precision standard torque; in addition, the clamping position of the hanging wire and the supporting shaft can be adjusted according to experiment requirements, clockwise torque loading or anticlockwise torque loading is achieved, and the device has a good application prospect and a good application range.
Furthermore, the loading disc comprises a circular ring and a connecting rod, the circumference of the circular ring is inwards sunken to form a first annular groove, one end of the connecting rod is fixedly connected with the circular ring, and the other end of the connecting rod is fixedly connected with the mounting seat.
In the technical scheme, the structure of the circular ring is similar to that of a metal inner wheel of a bicycle wheel, and one end of the hanging wire is fixedly connected with a certain point outside the circular ring and then can be wound along the first annular groove and then clamped into the second annular groove.
Furthermore, the air floating bearing device further comprises a quick connector, a screw hole is formed in the upper end of the bearing seat, the lower end of the screw hole extends into the bearing seat and corresponds to the air floating bearing in position, one end of the quick connector is in threaded connection with the screw hole, the other end of the quick connector is communicated with the air guide pipe, and the inside of the quick connector is hollow.
In above-mentioned technical scheme, equipment such as air duct can be demolishd fast to the quick-operation joint on the one hand after the experiment, and on the other hand also can fix the air duct in the experimentation, and the air duct is unstable under avoiding the high atmospheric pressure.
Further, still include first locking screw, supporting component includes supporting seat and support frame, the supporting seat set up in the support frame top, the support frame is injectd and is used for holding torque sensor's the chamber that holds, torque sensor install in hold the intracavity, first locking screw in proper order with torque sensor's outward flange with supporting seat threaded connection.
Furthermore, the loading device further comprises limiting blocks, wherein the limiting blocks are at least two and fixedly arranged on the upper surface of the supporting seat, the limiting blocks are located on the same side of the supporting seat, the limiting blocks are bent to form limiting plates which are horizontally arranged, the outer edge of the loading disc protrudes upwards to form a limiting part, and the height of the limiting part is higher than that of each limiting plate, and the limiting parts are located between every two adjacent limiting plates.
The beneficial effect of adopting above-mentioned technical scheme is:
a mechanical limiting structure is formed by the limiting block and the limiting part, so that the torque sensor is prevented from being damaged by excessive accidental loading torque.
Furthermore, the support seat further comprises a second locking screw, and the second locking screw is sequentially in threaded connection with the limiting block and the support seat.
Furthermore, the bearing seat further comprises a third locking screw, and the third locking screw is sequentially in threaded connection with the bearing seat and the supporting seat.
Furthermore, the support shaft further comprises a spring retainer ring, and the spring retainer ring is sleeved outside the support shaft and is fixedly connected with the support shaft.
The spring retainer ring is used for limiting the supporting shaft and avoiding the separation of the supporting shaft and the air bearing.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the prior art descriptions will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view;
FIG. 2 is a schematic view of a stopper structure;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a schematic cross-sectional view taken along the line B-B in FIG. 3;
fig. 6 is a schematic view of a spring retainer ring structure.
The device comprises a support assembly 1, a support seat 101, a support frame 102, a torque sensor 2, a torque input shaft 201, a loading disc 3, a circular ring 301, a connecting rod 302, a limiting part 303, a mounting seat 304, an air floating bearing assembly 4, a bearing seat 401, an air floating bearing 402, a support shaft 403, an air guide pipe 404, a hanging wire 5, a weight 6, a quick-connect joint 7, a first locking screw 8, a limiting block 9, a limiting block 901, a limiting plate 10, a second locking screw 11, a third locking screw and a spring retainer ring 12.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
As shown in fig. 1 to 6, an embodiment of the present invention discloses a vertical torque sensor calibration tool, including: the lower part of the support component 1 is connected with the torque sensor 2, and a torque input shaft 201 of the torque sensor 2 penetrates through the support component 1 and extends to the upper part of the support component 1; the loading disc 3 is circular, the middle part of the loading disc 3 is provided with a mounting seat 304, and the torque input shaft 201 is connected with the mounting seat 304; the circumferential direction of the loading disc 3 is inwards sunken to form a first annular groove; the air bearing assembly 4 comprises a bearing seat 401, an air bearing 402, a support shaft 403 and an air duct 404, wherein the two bearing seats 401 are symmetrically arranged at two sides of the support assembly 1 and fixedly connected with the support assembly 1; an air bearing 402 is installed in the bearing seat 401, a support shaft 403 is installed in the air bearing 402, and both ends of the support shaft 403 extend out of the bearing seat 401; one end of the air duct 404 penetrates through the bearing seat 401 and is arranged corresponding to the air bearing 402, and the other end is communicated with an external high-pressure air source; the outer surface of the support shaft 403 is provided with a second annular groove; and one end of the hanging wire 5 is fixedly connected with the loading disc 3, the other end of the hanging wire 5 is clamped into the first annular groove and the second annular groove in sequence and then extends downwards, and the other end of the hanging wire 5 is connected with one or more weights 6.
As shown in fig. 1, in the present embodiment, loading disc 3 includes a circular ring 301 and a connecting rod 302, the circumferential direction of circular ring 301 is recessed inwards to form a first annular groove, and one end of connecting rod 302 is fixedly connected to circular ring 301, and the other end is fixedly connected to mounting seat 304.
As shown in fig. 1, in this embodiment, the air-floating bearing further includes a quick connector 7, a screw hole is formed in the upper end of the bearing seat 401, the lower end of the screw hole extends into the bearing seat 401 and corresponds to the air-floating bearing 402, one end of the quick connector 7 is connected with the screw hole by a thread, the other end of the quick connector 7 is communicated with the air duct 404, and the quick connector 7 is hollow.
As shown in fig. 1, in this embodiment, four fabrication holes with large cross-sections are formed in the front and rear sides of the side surface of the supporting base 101, so as to facilitate the detachment and installation of the torque sensor 2, and meanwhile, no wiring space is left for the aerial insertion of the torque sensor 2.
As shown in fig. 5, in the present embodiment, the first locking screw 8 is further included, the supporting assembly 1 includes a supporting seat 101 and a supporting frame 102, the supporting seat 101 is disposed above the supporting frame 102, the supporting frame 102 defines a containing cavity for containing the torque sensor 2, the torque sensor 2 is installed in the containing cavity, and the first locking screw 8 is sequentially in threaded connection with an outer edge of the torque sensor 2 and the supporting seat 101.
As shown in fig. 1-2, in this embodiment, the supporting device further includes two limiting blocks 9, at least two limiting blocks 9 are fixedly disposed on the upper surface of the supporting seat 101, the multiple limiting blocks 9 are located on the same side of the supporting seat 101, the limiting blocks 9 are bent to form horizontally disposed limiting plates 901, the outer edge of the loading disc 3 protrudes upwards to form limiting portions 303, the height of the limiting portions 303 is higher than that of the limiting plates 901, and the limiting portions 303 are located between two adjacent limiting plates 901. The locking device further comprises a second locking screw 10, and the second locking screw 10 is sequentially in threaded connection with the limiting block 9 and the supporting seat 101. As shown in fig. 2, in this embodiment, a long hole is formed in the limiting block 9 for the second locking screw 10 to pass through (at this time, the second locking screw 10 is not in threaded connection with the long hole, but keeps threaded connection with the supporting seat 101), the second locking screw 10 is inserted into the long hole and then is in threaded connection with the supporting seat 101, the limiting block 9 can adjust the position in a small range along the length direction of the long hole, and the specific adjustment distance can be determined according to the limit torque that can be borne by the torque sensor 2.
As shown in fig. 4, in the present embodiment, a third locking screw 11 is further included, and the third locking screw 11 is sequentially in threaded connection with the bearing seat 401 and the supporting seat 101. When each locking screw is locked, the elastic washer can be inserted to achieve the anti-loosening purpose.
As shown in fig. 1 and fig. 6, in the present embodiment, a spring retainer 12 is further included, and the spring retainer 12 is sleeved outside the support shaft 403 and is fixedly connected to the support shaft 403.
The specific working process is as follows:
the application discloses 2 demarcation frocks of vertical torque sensor are applied to the occasion of 2 static demarcation of torque sensor. Specifically, before calibration operation, the torque sensor 2 to be measured needs to be mounted on the support base 101, and the loading disc 3 needs to be mounted on the torque input shaft 201 of the torque sensor 2; the two limit blocks 9 are arranged on the same side of the support seat 101, and the limit part 303 on the loading disc 3 is positioned between the two limit blocks 9; and finally, the hanging wire 5 is placed in the first ring cutting groove and the second ring cutting groove, one end of the hanging wire 5 is connected with the circular ring 301, and the other end of the hanging wire 5 vertically extends downwards to be connected with the weight 6.
High-pressure gas of 0.5MPa is introduced into the gas guide pipe 404, so that an air film is generated between the support shaft 403 and the air bearing 402, the support shaft 403 can realize frictionless axial and rotary motion in the air bearing 402, mechanical friction is effectively eliminated, and the whole device can provide high-precision standard torque. The diameter of the circular ring 301 of the loading disc 3 is D, the mass of the weights 6 hung on the two sides is M, and the standard torque T provided by the whole device is MgD.
The invention provides a vertical torque sensor calibration tool, which abandons the existing horizontal calibration tool and adopts a vertical hanging string weight component to match with an air bearing component to eliminate mechanical friction generated in the torque loading process to the maximum extent, so that the whole device can provide high-precision standard torque; in addition, the clamping position of the hanging wire and the supporting shaft can be adjusted according to experiment requirements, clockwise torque loading or anticlockwise torque loading is achieved, and the device has a good application prospect and a good application range.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (8)
1. The utility model provides a frock is markd to vertical type torque sensor which characterized in that includes:
the supporting component (1), the lower part of the supporting component (1) is connected with a torque sensor (2), and a torque input shaft (201) of the torque sensor penetrates through the supporting component (1) and extends to the upper part of the supporting component (1);
the loading disc (3) is circular, a mounting seat (304) is arranged in the middle of the loading disc (3), and the torque input shaft (201) is connected with the mounting seat (304); the circumferential direction of the loading disc (3) is inwards sunken to form a first annular groove;
the air bearing assembly (4), the air bearing assembly (4) includes a bearing seat (401), two air bearings (402), a support shaft (403) and air ducts (404), the two bearing seats (401) are symmetrically arranged on two sides of the support assembly (1) and are fixedly connected with the support assembly (1); the air bearing (402) is arranged in the bearing seat (401), the support shaft (403) is arranged in the air bearing (402), and two ends of the support shaft (403) extend out of the bearing seat (401); one end of the air duct (404) penetrates through the bearing seat (401) and is arranged corresponding to the air bearing (402), and the other end of the air duct is communicated with an external high-pressure air source; the outer surface of the supporting shaft (403) is provided with a second annular groove;
the loading disc comprises a hanging wire (5), one end of the hanging wire (5) is fixedly connected with the loading disc (3), the other end of the hanging wire is clamped into the first annular groove and the second annular groove in sequence and then extends downwards, and one or more weights (6) are connected to the other end of the hanging wire (5).
2. The vertical torque sensor calibration tool according to claim 1, wherein the loading disc (3) comprises a circular ring (301) and a connecting rod (302), the circumferential direction of the circular ring (301) is recessed inwards to form a first annular groove, one end of the connecting rod (302) is fixedly connected with the circular ring (301), and the other end of the connecting rod is fixedly connected with the mounting seat (304).
3. The vertical torque sensor calibration tool according to claim 1, further comprising a quick connector (7), wherein a screw hole is formed in the upper end of the bearing seat (401), the lower end of the screw hole extends into the bearing seat (401) and corresponds to the air bearing (402), one end of the quick connector (7) is in threaded connection with the screw hole, the other end of the quick connector is communicated with the air guide tube (404), and the quick connector (7) is hollow.
4. The upright torque sensor calibration tool according to claim 1, further comprising a first locking screw (8), wherein the support assembly (1) comprises a support seat (101) and a support frame (102), the support seat (101) is disposed above the support frame (102), the support frame (102) defines a receiving cavity for receiving the torque sensor (2), the torque sensor (2) is mounted in the receiving cavity, and the first locking screw (8) is sequentially in threaded connection with an outer edge of the torque sensor (2) and the support seat (101).
5. The vertical torque sensor calibration tool according to claim 4, further comprising at least two limiting blocks (9), wherein the limiting blocks (9) are fixedly arranged on the upper surface of the supporting seat (101), the limiting blocks (9) are located on the same side of the supporting seat (101), the limiting blocks (9) are bent to form horizontally arranged limiting plates (901), the outer edge of the loading disc (3) protrudes upwards to form limiting portions (303), the height of each limiting portion (303) is higher than that of each limiting plate (901), and each limiting portion (303) is located between two adjacent limiting plates (901).
6. The vertical torque sensor calibration tool according to claim 5, further comprising a second locking screw (10), wherein the second locking screw (10) is sequentially in threaded connection with the limiting block (9) and the supporting seat (101).
7. The vertical torque sensor calibration tool according to claim 4, further comprising a third locking screw (11), wherein the third locking screw (11) is sequentially in threaded connection with the bearing seat (401) and the support seat (101).
8. The upright torque sensor calibration tool according to claim 1, further comprising a spring retainer ring (12), wherein the spring retainer ring (12) is sleeved outside the support shaft (403) and is fixedly connected to the support shaft (403).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210714788.7A CN115096505A (en) | 2022-06-22 | 2022-06-22 | Vertical torque sensor calibration tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210714788.7A CN115096505A (en) | 2022-06-22 | 2022-06-22 | Vertical torque sensor calibration tool |
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| Publication Number | Publication Date |
|---|---|
| CN115096505A true CN115096505A (en) | 2022-09-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210714788.7A Pending CN115096505A (en) | 2022-06-22 | 2022-06-22 | Vertical torque sensor calibration tool |
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| CN (1) | CN115096505A (en) |
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| CN2604674Y (en) * | 2003-03-27 | 2004-02-25 | 洛阳轴研科技股份有限公司 | Bearing friction force torque measuring instrument |
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| CN210741848U (en) * | 2019-08-21 | 2020-06-12 | 中国船舶重工集团公司第七0四研究所 | Rigidity test device for large low-rigidity elastic coupling |
| CN211085606U (en) * | 2019-08-16 | 2020-07-24 | 天津大学 | Simple testing device for torsional rigidity parameters of flexible support |
| CN112108657A (en) * | 2020-06-29 | 2020-12-22 | 沙洋稀固纳米科技有限公司 | Hyperfine metal particle material preparation facilities |
| CN112985689A (en) * | 2020-02-29 | 2021-06-18 | 河南牛帕力学工程研究院 | Torque standard machine |
| CN215296555U (en) * | 2020-02-29 | 2021-12-24 | 河南牛帕力学工程研究院 | Torque standard machine for calibrating torque sensor |
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| CN2604674Y (en) * | 2003-03-27 | 2004-02-25 | 洛阳轴研科技股份有限公司 | Bearing friction force torque measuring instrument |
| CN205246277U (en) * | 2015-12-22 | 2016-05-18 | 昆山凯捷特电子研发科技有限公司 | Torsion calibrating device |
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| CN211085606U (en) * | 2019-08-16 | 2020-07-24 | 天津大学 | Simple testing device for torsional rigidity parameters of flexible support |
| CN210741848U (en) * | 2019-08-21 | 2020-06-12 | 中国船舶重工集团公司第七0四研究所 | Rigidity test device for large low-rigidity elastic coupling |
| CN112985689A (en) * | 2020-02-29 | 2021-06-18 | 河南牛帕力学工程研究院 | Torque standard machine |
| CN215296555U (en) * | 2020-02-29 | 2021-12-24 | 河南牛帕力学工程研究院 | Torque standard machine for calibrating torque sensor |
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