Torsion ring sensor

Abstract

The utility model provides a torsion ring sensor, which comprises a torsion ring elastic body and a plurality of resistance strain gauges, and is characterized in that the torsion ring elastic body comprises a loading end, an elastic body inner ring and an elastic body outer ring which are sequentially sleeved from inside to outside; the loading end and the elastomer inner ring are connected through a plurality of first spokes, so that a plurality of first through areas are separated between the loading end and the elastomer inner ring; the elastic body inner ring and the elastic body outer ring are connected through a plurality of second spokes, so that a plurality of second through areas are separated between the elastic body inner ring and the elastic body outer ring; the resistance strain gauges are respectively fixed on the upper and lower surfaces of the elastomer inner ring. According to the utility model, the sensitivity requirement of a small-capacity sensor is met by reasonably removing web materials (processed into through holes) on the inner side and the outer side of the strain ring (inner ring). The torsion ring sensor can be expanded to a smaller capacity, and the circuit board is placed in the elastic body, so that the limitation of small capacity is broken through, and the circuit board is prevented from being placed on the outer side of the elastic body.

Description

Technical Field

[0001] The utility model relates to the field of weighing sensors, in particular to a torsion ring sensor. Background Art

[0002] In the prior art, a torsion ring load cell is a high-precision load cell. Its unique torsion ring structure minimizes the impact of lateral forces, eccentric loads, impacts, and mechanical interference from its boundaries on its weighing accuracy.

[0003] Torsion ring load cells are cylindrical in appearance, welded and sealed, and have an IP68 protection rating. They are widely used in the chemical, pharmaceutical, and food industries, and are suitable for belt scales, platform scales, quantitative packaging scales, and tank scales.

[0004] Because digital sensors can achieve digital compensation, including sensitivity, linearity, hysteresis, and temperature performance, and can easily communicate with corresponding instruments or other peripherals through communication protocols, digital sensors are gaining increasing market applications. In recent years, there has been new market demand for small-capacity digital torsion ring sensors.

[0005] Typically, the capacity of a torsion ring sensor is related to the outer diameter of the elastomer and the thickness of the torsion ring. Generally, a torsion ring sensor with a small capacity has a small outer diameter of the elastomer and a small cross-sectional thickness of the torsion ring, but this thickness also has a lower limit.

[0006] Furthermore, because digital sensors have complex circuits and relatively large circuit boards, some manufacturers weld a metal box to the outer side of the torsion ring and place the circuit board inside. This structure is complex, costly, and unsightly. Consequently, the minimum capacity of torsion ring sensors currently on the market is limited by this structure.

[0007] For small-capacity digital torsion ring sensors, a new torsion ring elastomer structure needs to be designed to simultaneously meet the sensitivity requirements of the small-capacity sensor and the requirements for placing the circuit board.

[0008] In view of this, the inventor of the present application has designed a torsion ring sensor in order to overcome the above technical problems. Utility Model Content

[0009] The technical problem to be solved by the present invention is to overcome the defects of the prior art torsion ring sensor, such as complex structure and process, high cost, and structural limitation of the minimum capacity, and to provide a torsion ring elastomer and a torsion ring sensor including the same.

[0010] The utility model solves the above technical problems through the following technical solutions:

[0011] A torsion ring sensor, characterized in that the torsion ring sensor comprises a torsion ring elastic body and a plurality of resistance strain gauges, wherein the torsion ring elastic body comprises a loading end, an elastic inner ring and an elastic outer ring which are sequentially sleeved from the inside to the outside;

[0012] The loading end and the inner ring of the elastic body are connected by a plurality of first spokes, so that a plurality of first through-hole areas are separated between the loading end and the inner ring of the elastic body;

[0013] The inner and outer elastomer rings are connected to each other via a plurality of second spokes, such that a plurality of second through-hole areas are separated between the inner and outer elastomer rings;

[0014] The resistance strain gauges are respectively fixed to the upper and lower surfaces of the inner ring of the elastic body.

[0015] According to an embodiment of the present invention, the corresponding first spokes and second spokes are located on the same straight line.

[0016] According to one embodiment of the present invention, the first end of the first spoke is connected to the inner ring of the elastic body, and the second end is connected to the loading end, and the thickness of the second end of the first spoke at the connection is smaller than the thickness of the first end of the first spoke at the connection; and / or,

[0017] The first end of the second spoke is connected to the inner ring of the elastomer, and the second end is connected to the outer ring of the elastomer. The thickness of the second end connection part of the second spoke is smaller than the thickness of the first end connection part of the second spoke.

[0018] According to one embodiment of the present invention, when the loading end is loaded, the inner ring of the elastic body is twisted, and the angle between the vertical section passing through the center of the inner ring of the elastic body and the horizontal direction forms a torsion angle;

[0019] On the inner ring of the elastic body, the torsion angle at the first spoke and the second spoke is the maximum torsion angle, and the resistance strain gauge is arranged at a position where the torsion angle is the minimum.

[0020] According to an embodiment of the present invention, the torsion ring sensor further includes a circuit board, the lower end surface of the loading end and the outer ring of the elastic body form a receiving space, and the circuit board is arranged in the receiving space.

[0021] According to one embodiment of the present invention, the wire grid center of the resistance strain gauge is located at the intersection of the bisector of the angle formed by two adjacent first spokes or two second spokes and the inner ring of the elastic body.

[0022] According to an embodiment of the present invention, the resistance strain gauges located on the upper and lower surfaces of the inner ring of the elastic body are aligned with each other.

[0023] According to one embodiment of the present invention, a non-through threaded hole, or a bearing ball socket, or a bearing ball head is provided on the upper portion of the loading end.

[0024] According to one embodiment of the present invention, the radial width of the inner ring of the elastomer is 4 mm to 8 mm.

[0025] According to one embodiment of the present invention, the areas of the first through-region and the second through-region account for 55% to 95% of the total area, and the total area includes the areas of the first through-region and the second through-region, and the areas of the first spoke and the second spoke.

[0026] The positive progress effect of this utility model is:

[0027] The utility model of the torsion ring sensor has the following advantages:

[0028] 1. The sensitivity requirements of small-capacity sensors can be met by reasonably removing the inner and outer web materials of the strain ring (inner ring) (processing them into through areas);

[0029] Second, the load-bearing end is designed to be without through-holes, and the circuit board is fixed to the lower surface of the load-bearing end;

[0030] Third, the torsion ring sensor can be expanded to a smaller capacity and the circuit board can be placed inside the elastomer, thus breaking through the small capacity limitation and avoiding placing the circuit board outside the elastomer. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The above and other features, properties and advantages of the present invention will become more apparent through the following description in conjunction with the accompanying drawings and embodiments, in which the same reference numerals represent the same features throughout, wherein:

[0032] Figure 1 This is a structural diagram of the torsion ring sensor of the present utility model.

[0033] Figure 2 This is a top view of the twist ring sensor of the present invention.

[0034] Figure 3 This is a bottom view of the twist ring sensor of the present invention.

[0035] Figure 4 This is a schematic diagram of the torsion angle in the torsion ring sensor of the present invention.

[0036] Figure 5 This is a schematic diagram of the distribution of torsion angles on the upper surface of the inner ring of the elastic body in the torsion ring sensor of the present invention.

[0037] Figure 6This is a schematic diagram of the structure of the torsion ring sensor of the present invention, in which six first spokes and six second spokes are arranged.

[0038] Figure 7 This is a schematic diagram of the structure of the torsion ring sensor of the present invention, in which eight first spokes and eight second spokes are arranged.

[0039] Figure 8 This is a schematic diagram of the structure of the spokes in the twist ring sensor of the utility model. Figure 1 .

[0040] Figure 9 This is a schematic diagram of the structure of the spokes in the twist ring sensor of the utility model. Figure 2 .

[0041] Figure 10 The structure diagram of the loading end of the torsion ring sensor of this utility model is as follows: Figure 1 .

[0042] Figure 11 The structure diagram of the loading end of the torsion ring sensor of this utility model is as follows: Figure 2 .

[0043] Reference numerals

[0044] Torsion ring elastic body 10

[0045] Resistance strain gauge 20

[0046] Circuit board 30

[0047] Cable connector 40

[0048] Upper sealing cover 50

[0049] Lower sealing cover plate 60

[0050] Fixing 70

[0051] Sleeve 71

[0052] Loading terminal 11

[0053] Elastomer inner ring 12

[0054] Elastic outer ring 13

[0055] First spoke 14

[0056] First penetrating area A

[0057] Second spoke 15

[0058] Second penetrating area B

[0059] The first end 141 of the first spoke

[0060] The second end 142 of the first spoke

[0061] The first end 151 of the second spoke

[0062] The second end 152 of the second spoke

[0063] Mounting hole 111

[0064] threaded hole 112

[0065] Bearing ball socket 113

[0066] Bearing ball head 114

[0067] Bolt hole 131 DETAILED DESCRIPTION

[0068] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0069] Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numerals will be used throughout the drawings to represent the same or similar parts.

[0070] In addition, although the terms used in the present invention are selected from well-known and commonly used terms, some terms mentioned in the specification of the present invention may be selected by the applicant at his or her discretion, and their detailed meanings are explained in the relevant parts of the description of this article.

[0071] Furthermore, it is required that the present invention be understood not only by the actual terms used but also by the meanings connoted by each term.

[0072] Figure 1 This is a structural diagram of Example 1 of the torsion ring sensor of the present utility model. Figure 2 This is a top view of the first embodiment of the torsion ring sensor of the present invention. Figure 3 This is a bottom view of the first embodiment of the torsion ring sensor of the present invention.

[0073] like Figures 1 to 3The present invention discloses a torsion ring sensor, comprising a torsion ring elastic body 10, a plurality of resistance strain gauges 20, a circuit board 30, a cable connector 40, an upper sealing cover plate 50, and a lower sealing cover plate 60. The torsion ring elastic body 10 comprises a loading end 11, an elastic inner ring 12, and an elastic outer ring 13, which are sequentially arranged from the inside out. The loading end 11 and the elastic inner ring 12 are connected by a plurality of first spokes 14, thereby separating a plurality of first through-regions A between the loading end 11 and the elastic inner ring 12 (for example, the first through-regions A are formed by a hollowing process).

[0074] Similarly, the elastomeric inner ring 12 and the elastomeric outer ring 13 are connected by multiple second spokes 15, so that multiple second through-areas B are separated between the elastomeric inner ring 12 and the elastomeric outer ring 13 (for example, the second through-areas B are formed by a hollowing-out process).

[0075] For example, in this embodiment, four first spokes 14 are evenly connected between the loading end 11 and the elastomeric inner ring 12, thereby separating the circumference between the loading end 11 and the elastomeric inner ring 12 into eight evenly distributed first through-areas A. Simultaneously, four second spokes 15 are evenly connected between the elastomeric inner ring 12 and the elastomeric outer ring 13, thereby separating the circumference between the elastomeric inner ring 12 and the elastomeric outer ring 13 into eight second through-areas B.

[0076] In the prior art, a torsion ring elastic body is not hollowed out or perforated, but instead has resistance strain gauges attached at staggered angles. The capacity is adjusted by varying the thickness of the torsion ring elastic body. However, after the thickness of the torsion ring elastic body with this structure is reduced to a certain level, the thickness cannot be further reduced, and the capacity cannot be further reduced.

[0077] Therefore, the present application further reduces the capacity of the torsion ring elastic body 10 by hollowing out the torsion ring elastic body 10, configuring the torsion ring elastic body 10 into a ring structure with resistance strain gauges symmetrically arranged on the upper and lower surfaces. When the load-bearing end is loaded, the resistance strain gauge located on the upper surface of the torsion ring elastic body is compressed, while the resistance strain gauge located on the lower surface of the torsion ring elastic body is stretched, forming a tangential strain distribution on the strain ring, making the strain force evenly distributed.

[0078] Preferably, the corresponding first spokes 14 and second spokes 15 are arranged to be located on the same straight line. Further, the first spokes 14, the second spokes 15 and the elastic inner ring 12 can be arranged to be integrally formed, and the first spokes 14 and the second spokes 15 are respectively located on the inner and outer sides of the elastic inner ring 12.

[0079] Here, each of the first spokes 14 and the second spokes 15 can form a group of spoke structures. In this embodiment, the first spokes 14 and the second spokes 15 are respectively located on the inner and outer sides of the elastomer inner ring 12. Alternatively, the first spokes 14 and the second spokes 15 can be configured as an integral spoke, connecting the loading end 11, the elastomer inner ring 12, and the elastomer outer ring 13. The first spokes 14, the second spokes 15 (or both configured as an integral spoke structure), the elastomer inner ring, the loading end, and the elastomer outer ring can be integrally formed, that is, the entire torsion ring elastomer can be integrally formed. Of course, the structural form here is only an example and is not intended to be limiting. Other processing forms can also be used as long as the above-mentioned structure of the torsion ring elastomer is achieved.

[0080] The first end 141 of the first spoke 14 is connected to the inner elastomeric ring 12, and the second end 142 is connected to the loading end 11. At this time, the thickness of the connection between the second end 142 of the first spoke 14 and the loading end 11 is set to be smaller than the thickness of the connection between the first end 141 of the first spoke 14 and the inner elastomeric ring 12.

[0081] And / or, the first end 151 of the second spoke 15 is connected to the elastomeric inner ring 12, and the second end 152 is connected to the elastomeric outer ring 13, and the thickness of the connection between the second end 152 of the second spoke 15 and the elastomeric outer ring 13 is set to be smaller than the thickness of the connection between the first end 151 of the second spoke 15 and the elastomeric inner ring 12.

[0082] This structural arrangement allows the second section 142 of the first spoke 14 and the second end 152 of the second spoke 15 to deform significantly when the loading end 11 moves downward under load. By adjusting the thickness of the connecting structure, thinner areas (such as the second section 142 of the first spoke 14 and the second end 152 of the second spoke 15) can be deformed significantly, causing the elastomeric inner ring 12 to be subjected to tangential compression and tension, thereby achieving overall deformation.

[0083] like Figure 4 As shown, when the sensor is loaded, that is, when loading end 11 is loaded, the elastic inner ring 12 twists (for example, from horizontal to downwardly inclined). The angle between the vertical section passing through the center of the elastic inner ring 12 and the horizontal direction forms a twist angle α. After the elastic inner ring 12 twists, the twist angle varies at different locations.

[0084] like Figure 5 As shown in , when full-scale loading is applied, the torsion angle α reaches its maximum value β. For a sensor without a hollow on the elastic body, under a certain load, the torsion angle of the strain ring is basically uniform in the circumferential direction, as shown in Figure 5However, for the sensor hollowed out on the elastomer in this application, the torsion angle of the strain ring (i.e., the inner ring of the elastomer) is distributed regularly in the circumferential direction under a certain load. For example, for a sensor with 4 spokes (4 first spokes 14 and 4 second spokes 15) evenly distributed in the circumferential direction, under full-scale load, the torsion angle of the strain ring (i.e., the inner ring of the elastomer) is distributed in the circumferential direction as follows: Figure 5 Indicated by the dotted line.

[0085] Among them, the four peaks (high points, close to the β value in the figure) are located at the positions where the spokes are set, and the four troughs (low points, close to the β2 value in the figure) are located at the hollow positions. β2<β, and the patch position of the resistance strain gauge is preferably at the trough position. Therefore, on the elastic inner ring 12, the torsion angle at the first spoke 14 and the second spoke 15 of the corresponding group is the maximum torsion angle (such as Figure 5 The torsion angle at the resistance strain gauge 20 is the minimum torsion angle (e.g. Figure 5 The number of wave crests and troughs corresponds to the number of spoke groups evenly distributed on the circumference (each group includes a first spoke and a second spoke, or a single spoke connecting the loading end, the inner ring, and the outer ring), and they match each other.

[0086] In particular, the first spoke 14 and the second spoke 15 here are preferably flexible structures with a minimum thickness as thin as possible. For example, a small-capacity sensor can be as small as 0.3 mm. Its function is to isolate the bending moment from being transmitted to the elastic inner ring 12 attached to the resistance strain gauge 20.

[0087] Strain gauges 20 are attached to the upper and lower surfaces of the inner ring 12. When the loading end is loaded, the strain gauge 20 on the upper surface of the inner ring 12 experiences tangential compression, increasing its resistance. The strain gauge 20 on the lower surface of the inner ring 12 experiences tangential tension, decreasing its resistance.

[0088] The center of the wire grid of each resistance strain gauge 20 is located at the intersection of the angle bisector of the angle formed by two adjacent first spokes 14 or two adjacent second spokes 15 and the elastic inner ring 13. At the same time, the resistance strain gauges 20 located on the upper and lower surfaces of the elastic inner ring 12 are aligned with each other.

[0089] For example, in the present application, eight resistance strain gauges 20 are provided, with four of them evenly distributed on the upper and lower surfaces of the inner ring 12 of the elastic body.

[0090] Of course, the number of the resistance strain gauges 20 here varies according to the number of the first spokes 14 and the second spokes 15. For example, Figure 6As shown, when the number of the first spokes 14 and the second spokes 15 increases to 6, the number of the corresponding first through-areas A and the second through-areas B increases accordingly.

[0091] For example, Figure 7 As shown, when the number of the first spokes 14 and the second spokes 15 increases to 8, the number of the corresponding first through-areas A and the second through-areas B increases accordingly.

[0092] Furthermore, regarding the relationship between the number of strain gauges and spokes, generally speaking, the number of strain gauges is mostly 4 (forming a Wheatstone bridge), or 8 (every two are connected in series to form a Wheatstone bridge, and the embodiment of the present application has 8 strain gauges).

[0093] Of course, in theory, it is also possible to set up 12 or 16 strain gauges, which mainly depends on the input and output impedance requirements of the product and the cost acceptance. In fact, the number of strain gauges and the number of spokes do not need to be proportional. For example, when the number of spokes is increased to 8, the strain gauges can still be maintained at 4 on each of the upper and lower inner rings, evenly distributed on the circumference (the other 4 positions are left empty).

[0094] like Figure 3 Combine Figure 1 As shown, the lower end surface of the loading end 11 and the outer ring 13 of the elastomer define a receiving space C. The circuit board 30 is disposed within the receiving space C, that is, within the elastomer. At least one mounting hole 111, such as a screw hole, is defined in the lower end surface of the loading end 11. The circuit board 30 is secured to the mounting hole 111 via a fixing member 70. A sleeve 71 is also disposed between the bottom of the loading end 11 and the circuit board 30. The sleeve 71 is sleeved onto the fixing member 70 to isolate the loading end 11 from the circuit board 30.

[0095] The wire connected to the resistance strain gauge 20 is connected to the input end of the circuit board 30 , and the output end of the circuit board 30 is connected to the cable connector 40 .

[0096] like Figure 8 As shown, the shape of the first spoke 14 and the second spoke 15 can be set to be fan-shaped. The load-bearing effect of the spokes of this shape is better than that of the rectangular spokes. Further, considering the actual consideration of the radius of the milling cutter, the fan-shaped spokes, such as Figure 9 As shown, both side edges of the first spoke 14 and the second spoke 15 can be milled into arc shapes.

[0097] In addition, a threaded hole 112 or a bearing ball socket 113 (such as a ball socket 113) is provided on the upper portion of the loading end 11. Figure 10 As shown), or the bearing ball head 114 (as shown Figure 11 shown) for loading.

[0098] Preferably, the radial width of the elastomeric inner ring 12 in this embodiment is preferably 4 mm to 8 mm. For example, the radial width can be 4 mm, 5 mm, 6 mm, 7 mm, or 8 mm, all of which can implement the technical solution of this application. The radial width of the elastomeric inner ring 12 is determined based on whether the upper and lower surfaces of the elastomeric inner ring 12 can be tangentially attached to the resistance strain gauge 20, with an appropriate margin.

[0099] Further preferably, the areas of the first through-region A and the second through-region B account for 55% to 95% of the total area, for example, preferably 55%, 65%, 75%, 85%, or 95% of the total area, all of which can implement the technical solution of the present application. The total area includes the areas of the first through-region A and the second through-region B, as well as the areas of the first spoke 14 and the second spoke 15, but does not include the area of ​​the elastomer inner ring 12. The "area" referred to here is the projected area along the axial direction of the elastomer.

[0100] In the present application, the thickness of the elastic inner ring 12 and the widths of the first spoke 14 and the second spoke 15 are determined by finite element simulation calculation based on the sensitivity requirements of the sensor when fully loaded.

[0101] Furthermore, an upper sealing cover plate 50 is fixed to the top of the elastomer 10 to seal the space between the load-bearing end 11 and the elastomer outer ring 13. A lower sealing cover plate 60 is fixed to the bottom of the elastomer 10 to seal the hollow space within the elastomer outer ring 13. The elastomer outer ring 13 is fixedly connected via non-through bolt holes 131.

[0102] The utility model is aimed at a small-capacity twist ring sensor, especially a digital small-capacity twist ring sensor, and can meet the sensitivity requirements of the sensor. At the same time, the circuit board is placed inside the sensor structure to avoid the circuit board being exposed outside.

[0103] In summary, the twist ring sensor of the present invention has the following advantages:

[0104] 1. The sensitivity requirements of small-capacity sensors can be met by reasonably removing the inner and outer web materials of the strain ring (processing them into through holes);

[0105] Second, the load-bearing end is designed to be without through-holes, and the circuit board is fixed to the lower surface of the load-bearing end;

[0106] Third, the torsion ring sensor can be expanded to a smaller capacity and the circuit board can be placed inside the elastomer, thus breaking through the small capacity limitation and avoiding placing the circuit board outside the elastomer.

[0107] For those skilled in the art, the above utility model disclosure is intended only as an example and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and amendments to this application. Such modifications, improvements, and amendments are suggested in this application and therefore remain within the spirit and scope of the exemplary embodiments of this application.

[0108] At the same time, this application uses specific terms to describe the embodiments of this application. For example, "one embodiment," "an embodiment," and / or "some embodiments" refer to a certain feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that "one embodiment," "an embodiment," or "an alternative embodiment" mentioned twice or multiple times in different locations in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application may be appropriately combined.

[0109] Similarly, it should be noted that, in order to simplify the description of the present disclosure and thus facilitate understanding of one or more utility model embodiments, the foregoing descriptions of the present disclosure embodiments sometimes combine multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not mean that the subject matter of the present disclosure requires more features than those mentioned in the claims. In fact, the features of an embodiment may be fewer than the total features of a single disclosed embodiment.

[0110] Although specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications shall fall within the scope of protection of the present invention.

Claims

1. A torsion ring sensor, characterized in that: The torsion ring sensor includes a torsion ring elastic body and a plurality of resistance strain gauges, wherein the torsion ring elastic body includes a loading end, an elastic inner ring and an elastic outer ring which are sequentially sleeved from the inside to the outside; The loading end and the inner ring of the elastic body are connected by a plurality of first spokes, so that a plurality of first through-hole areas are separated between the loading end and the inner ring of the elastic body; The inner and outer elastomer rings are connected to each other via a plurality of second spokes, such that a plurality of second through-hole areas are separated between the inner and outer elastomer rings; The resistance strain gauges are respectively fixed to the upper and lower surfaces of the inner ring of the elastic body.

2. The torsion ring sensor according to claim 1, wherein: The corresponding first spokes and second spokes are located on the same straight line.

3. The torsion ring sensor according to claim 2, wherein: The first end of the first spoke is connected to the inner ring of the elastic body, and the second end is connected to the loading end, and the thickness of the second end of the first spoke at the connection point is smaller than the thickness of the first end of the first spoke at the connection point; and / or, The first end of the second spoke is connected to the inner ring of the elastomer, and the second end is connected to the outer ring of the elastomer. The thickness of the second end connection part of the second spoke is smaller than the thickness of the first end connection part of the second spoke.

4. The torsion ring sensor according to claim 2, wherein: When the loading end is loaded, the inner ring of the elastic body is twisted, and the angle between the vertical section passing through the center of the inner ring of the elastic body and the horizontal direction forms a torsion angle; On the inner ring of the elastic body, the torsion angle at the first spoke and the second spoke is the maximum torsion angle, and the resistance strain gauge is arranged at a position where the torsion angle is the minimum.

5. The torsion ring sensor according to claim 1, wherein: The torsion ring sensor further includes a circuit board. The lower end surface of the loading end and the outer ring of the elastic body form a receiving space, and the circuit board is arranged in the receiving space.

6. The torsion ring sensor according to claim 1, wherein: The wire grid center of the resistance strain gauge is located at the intersection of the angle bisector of the angle formed by two adjacent first spokes or two adjacent second spokes and the inner ring of the elastic body.

7. The torsion ring sensor according to claim 1, wherein: The resistance strain gauges located on the upper and lower surfaces of the inner ring of the elastic body are aligned with each other.

8. The torsion ring sensor according to claim 1, wherein: The upper portion of the loading end is provided with a threaded hole that is not penetrated, or a bearing ball socket, or a bearing ball head.

9. The torsion ring sensor according to claim 1, wherein: The radial width of the inner ring of the elastic body is 4 mm to 8 mm.

10. The torsion ring sensor according to claim 1, wherein: The areas of the first through-region and the second through-region account for 55% to 95% of the total area, and the total area includes the areas of the first through-region and the second through-region, and the areas of the first spoke and the second spoke.

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