CN218381377U - Tension sensor and tension measuring device equipped with the same - Google Patents
Tension sensor and tension measuring device equipped with the same Download PDFInfo
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- CN218381377U CN218381377U CN202222627196.XU CN202222627196U CN218381377U CN 218381377 U CN218381377 U CN 218381377U CN 202222627196 U CN202222627196 U CN 202222627196U CN 218381377 U CN218381377 U CN 218381377U
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- 230000001681 protective effect Effects 0.000 claims abstract description 21
- 230000000452 restraining effect Effects 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
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Abstract
The utility model belongs to the technical field of tension sensors, in particular to a tension sensor and a tension measuring device provided with the same, which comprises a limiting outer protective sleeve, a sensor component and a mounting plate; the periphery of the inner side surface of the mounting plate is in threaded connection with the limiting outer protective sleeve; the device also comprises a boss; the boss is arranged on the inner side surface of the mounting plate; the sensor assembly is mounted on the boss. The mounting plate is directly in threaded connection with the limiting outer protective sleeve; the boss keeps apart sensor module and mounting panel, and consequently the locking force that the mounting panel received is difficult to conduct to sensor module to reduce the stress that sensor module received, and then strengthened sensor module's measurement accuracy. When the tension sensor is assembled, the boss needs to be aligned to the inner cavity, the sensor assembly and the boss can be smoothly inserted into the inner cavity, and the mounting plate and the bearing connecting piece are aligned along with the axis, so that the boss also has a positioning effect when being assembled, the assembling process of the sensor can be simplified, and the assembling speed of the sensor is accelerated.
Description
Technical Field
The utility model belongs to the technical field of tension sensor, especially, relate to a tension sensor and be equipped with tension measuring device of this sensor.
Background
The tension sensor is an instrument for measuring the tension value of the coiled material in the tension control process, and is used for detecting and controlling the tension of the coiled material such as paper, thin films, battery pole pieces and the like. The strain gauge type is that the strain gauges are connected together in a bridge mode, the resistance value of the strain gauge is changed when external pressure is applied, and the change value is in direct proportion to the magnitude of the applied tension; according to the proportional relation between the tension and the change value, the tension can be obtained by reversely calculating through obtaining the change value.
The connection of each part between the inside of the existing tension sensor and the installation of the tension sensor and external equipment are realized through threaded connection, and the locking force generated by the threaded connection can increase the stress on the internal sensing part of the tension sensor, so that the measurement precision of the tension sensor is influenced. For example, the utility model patent application of application number CN201721022184.7, this application provides a circular tension sensor of tape bearing and is equipped with the tension measuring device of this sensor, including the sensor body, a bearing, the bearing connecting piece, spacing oversheath, bearing compress tightly upper cover and tension measuring roller, the inside fixed heavy groove of bearing that is used for the fixed mounting bearing that is equipped with of bearing connecting piece, the bearing is arranged in the fixed heavy inslot of bearing connecting piece, the bearing compresses tightly the upper cover and is fixed mutually with the bearing connecting piece, compress tightly the bearing and fix in the bearing connecting piece, spacing oversheath cover is established on the outer wall between bearing connecting piece and the sensor body, it is fixed mutually with the sensor body threaded connection, the locking force that threaded connection produced just can increase the stress that the sensor body received to influence the measurement accuracy of sensor. In addition, because the positioning design is lacked between the sensor body and the bearing connecting piece, when the sensor body and the bearing connecting piece are assembled, the assembly can be smoothly completed only by aligning the screw holes one by one after the axis of the sensor body and the axis of the bearing connecting piece are aligned, the assembly process is complicated, and the assembly efficiency is low.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tension sensor and be equipped with tension measuring device of this sensor, aim at solving current tension sensor, the locking force that threaded connection produced can increase the stress that the inside sensing part of tension sensor received, and then influences tension sensor's measurement accuracy's technical problem.
In order to achieve the above object, an embodiment of the present invention provides a tension sensor, which includes a limiting outer protective sleeve, a sensor assembly and a mounting plate; the periphery of the inner side surface of the mounting plate is in threaded connection with the limiting outer protective sleeve; the device also comprises a boss; the boss is arranged on the inner side surface of the mounting plate; the sensor assembly is mounted on the boss.
Optionally, a bearing connector and a bearing are also included; the bearing connecting piece is arranged in the limiting outer protective sleeve; an inner cavity is arranged in the bearing connecting piece; the bearing is arranged in the inner cavity; the sensor assembly and the boss are inserted into the inner cavity from one end of the bearing connector.
Optionally, the boss is integrally formed with the mounting plate.
Optionally, the sensor assembly comprises a spring beam and a strain gauge; the elastic beam is arranged on the boss and connected with the inner wall of the bearing connecting piece; the strain gauge is mounted on the surface of the elastic beam.
Optionally, the periphery of the mounting plate is provided with a plurality of first threaded holes for threaded connection with the limiting outer protective sleeve; the first threaded holes are circumferentially arranged; the diameter of the boss is larger than the width of the elastic beam and smaller than the diameter of the circumference formed by the first threaded hole.
Optionally, the periphery of the mounting plate is provided with a plurality of second threaded holes for connecting with external equipment; the second threaded hole is circumferentially arranged and is arranged on the same circumference as the first threaded hole.
Optionally, the center of the outer side surface of the mounting plate is provided with a clearance groove.
Optionally, a clamp spring groove is formed in the inner cavity, a clamp spring is detachably arranged in the clamp spring groove, and the clamp spring abuts against the bearing so as to limit the axial movement of the bearing along the inner cavity.
Optionally, a fixing head for passing a cable is arranged on the side surface of the limiting outer protective sleeve.
The embodiment of the utility model provides an above-mentioned one or more technical scheme in the tension sensor have one of following technological effect at least: the mounting plate is directly in threaded connection with the limiting outer protective sleeve; the boss keeps apart sensor module and mounting panel, and consequently the locking force that the mounting panel received is difficult to conduct to sensor module to reduce the stress that sensor module received, and then strengthened sensor module's measurement accuracy.
When the tension sensor is assembled, the boss needs to be aligned to the inner cavity, the sensor assembly and the boss can be smoothly inserted into the inner cavity, and the mounting plate and the bearing connecting piece are aligned along with the axis, so that the boss also has a positioning effect when being assembled, the assembling process of the sensor can be simplified, and the assembling speed of the sensor is accelerated.
The embodiment of the utility model also provides a tension measuring device, which comprises a guide roller; the two ends of the guide roller are respectively provided with the tension sensors.
The embodiment of the utility model provides an above-mentioned one or more technical scheme among the tension measuring device have one of following technological effect at least:
since the tension measuring device includes the tension sensor, the measurement accuracy of the tension measuring device is not affected by the stress of the assembly of internal components and the stress of the installation connection with external equipment, and the tension measuring device also has the advantage of convenient assembly.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive labor.
Fig. 1 is a schematic view of an overall structure of a tension sensor according to an embodiment of the present invention;
fig. 2 is an exploded schematic view of a tension sensor according to an embodiment of the present invention;
fig. 3 is an exploded view of another perspective of a tension sensor according to an embodiment of the present invention;
fig. 4 is a schematic view of an overall structure of a tension measuring apparatus according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
the limiting outer protective sleeve 100, the fixing head 110, the sensor assembly 200, the elastic beam 210, the strain gauge 220, the mounting plate 300, the first threaded hole 310, the second threaded hole 320, the clearance groove 330, the boss 400, the bearing connecting piece 500, the inner cavity 510, the clamp spring groove 511, the bearing 600, the clamp spring 700, the guide roller 800, the mounting flange 900 and the bolt hole 910.
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 reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary and intended to explain the embodiments of the present invention and are not to be construed as limiting the present invention.
In the description of the embodiments of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings only for the convenience of description of the embodiments of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element so indicated must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and therefore should not be construed as limiting the 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 embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly, e.g., as fixed or detachable connections or as an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.
In some embodiments of the present invention, as shown in fig. 1-3, a tension sensor is provided that includes a restraining outer protective sheath 100, a sensor assembly 200, and a mounting plate 300. The periphery of the inner side surface of the mounting plate 300 is in threaded connection with the limiting outer protective sleeve 100. The tension sensor also includes a boss 400. The bosses 400 are mounted to the inner side surface of the mounting plate 300. The sensor assembly 200 is mounted on the boss 400.
Due to the direct threaded connection with the positive displacement protective outer sheath 100 is the mounting plate 300. The boss 400 isolates the sensor assembly 200 from the mounting plate 300, so that the locking force applied to the mounting plate 300 is difficult to be transmitted to the sensor assembly 200, thereby reducing the stress applied to the sensor assembly 200 and enhancing the measurement accuracy of the sensor assembly 200.
In other embodiments of the present invention, as shown in fig. 1-3, the tension sensor further comprises a bearing connector 500 and a bearing 600. The bearing connector 500 is installed in the limiting outer protective sheath 100. The bearing connector 500 has an internal cavity 510 therein. The bearing 600 is mounted to the inner chamber 510. The sensor assembly 200 and the boss 400 are inserted into the inner cavity 510 from the other end of the bearing connector 500. Specifically, the boss 400 has a diameter that is 0.01mm to 3mm smaller than the inner diameter of the inner cavity 510 for assembly convenience and compactness.
During the equipment during tension sensor, boss 400 need aim at interior cavity 510 can be smoothly with sensor subassembly 200 with boss 400 inserts in the cavity 510, will boss 400 aligns behind the cavity 510, mounting panel 300 with bearing connection spare 500 just the axis is aligned thereupon, consequently boss 400 also has the effect of location when the equipment, the assembling process of sensor can be simplified to boss 400 to accelerate the assembly rate of sensor.
In other embodiments of the present invention, the width of the boss 400 is not less than 1mm. That is, the distance from the sensor assembly 200 to the inner side surface of the mounting plate 300 is not less than 1mm, and a sufficient distance can ensure that the screwing force applied to the mounting plate 300 is hard to be transmitted to the sensor assembly 200.
In other embodiments of the present invention, the boss 400 is integrally formed with the mounting plate 300, so that the connection strength between the boss 400 and the mounting plate 300 is enhanced.
In other implementations of the present invention, as shown in fig. 2-3, the sensor assembly 200 includes a spring beam 210 and a strain gage 220. The elastic beam 210 is mounted on the boss 400 and connected to the inner wall of the bearing connector 500. The strain gauge 220 is mounted on the surface of the elastic beam 210. Specifically, when the elastic beam 210 is installed in the bearing connector 500, the stress of the bearing 600 is transmitted to the elastic beam 210 through the bearing connector 500, so that the elastic beam 210 is slightly deformed. When the elastic beam 210 is deformed by a force, the strain gauge 220 is deformed, and the resistance value is changed accordingly.
In this embodiment, the strain gauge 220 is mounted on the elastic beam 210 by means of adhesion.
In other embodiments of the present invention, as shown in fig. 2, the mounting plate 300 is provided with a plurality of first threaded holes 310 for threaded connection with the outer protective spacing sleeve 100. The first threaded hole 310 is circumferentially disposed. The diameter of boss 400 is greater than the width of elastic beam 210, whole elastic beam 210 all install in on the boss 400, guarantee elastic beam 210 whole all not all with mounting panel 300 produces direct contact, mounting panel 300 with locking force between the spacing outer protective sheath 100 is difficult to conduct to elastic beam 210, moreover the diameter of boss 400 is less than the circumference diameter that first screw hole 310 constitutes, first screw hole 310 department is the concentrated region of locking force, boss 400 not with first screw hole 310 produces lug connection, and locking force is difficult to conduct naturally extremely boss 400 and then influence elastic beam 210's atress.
In other embodiments of the present invention, as shown in fig. 2, the mounting plate 300 is provided with a plurality of second screw holes 320 for connecting with an external device. The second threaded hole 320 is circumferentially disposed and disposed on the same circumference as the first threaded hole 310. First screw hole 310 with the setting of second screw hole 320 is concentrated on same circumference, can further improve the space utilization of mounting panel 300 terminal surface, compare in first screw hole 310 with the condition of second screw hole 320 decentralized distribution, the diameter of mounting panel 300 can be done littleer to reduce the whole volume that makes tension sensor, and then be applicable to the installation in the narrower and small position in other spaces.
In other embodiments of the present invention, as shown in fig. 2, a clearance groove 330 is formed in the center of the outer side surface of the mounting plate 300. Specifically, when the external device (not shown) is installed and connected, the outer side surface of the mounting plate 300 is in direct contact with the external device, so that the pressure of the external device on the mounting plate 300 is easily transmitted from the outer side surface of the mounting plate 300 to the elastic beam 210, resulting in an increase in the stress received by the elastic beam 210, thereby affecting the test accuracy. Since the clearance groove 330 is provided, the contact area between the outer surface of the mounting plate 300 and the external device is reduced, and thus, the pressure of the external device to the mounting plate 300 is concentrated on the portion other than the clearance groove 330, thereby preventing the elastic beam 210 from being affected by the pressure. The clearance groove 330 has a diameter larger than that of the elastic beam 210, thereby ensuring that the entire elastic beam 210 is not affected by the pressure of an external device.
Two clamp spring slots 511 are arranged in the inner cavity 510. The clamp spring groove 511 is detachably provided with a clamp spring 700. The clamp springs 700 are respectively abutted against two ends of the bearing 600 so as to limit the bearing 600 to move axially outwards along the inner cavity 510, so that the bearing 600 can only rotate in the cavity. The diameters of the inner ring holes of the two clamp springs 700 are smaller than the outer diameter of the bearing 600 and larger than the inner diameter of the bearing 600, so that the clamp springs 700 can limit the bearing 600.
It should be understood that the bearing 600 is limited by two clamp springs 700, and in other embodiments, the clamp spring 700 may be installed on one side of the bearing 600, and a spacer (not shown) may be installed on the other side of the bearing 600, and the clamp spring 700 and the spacer may also limit the bearing 600 from moving axially in the inner cavity 510. It is understood that the flexible variation of the position-limiting mode of the bearing 600 is not limited to the basic concept of the present invention, and the present invention is not limited to the above-mentioned embodiments.
In other embodiments of the present invention, as shown in fig. 2, the side of the position-limiting outer protective sheath 100 is provided with a fixing head 110 for passing the cable. The cables in the tension sensor are uniformly led out from the fixing head 110, so that the cables are convenient to arrange, and the cables can be prevented from being wound and knotted.
In other embodiments of the present invention, as shown in fig. 4, there is also provided a tension measuring device, which includes a guide roller 800. The tension sensors are respectively installed at both ends of the guide roller 800.
Since the tension measuring device includes the tension sensor, the measurement accuracy of the tension measuring device is not affected by the stress of the internal component assembly and the stress of the external connection, and the tension measuring device also has the advantage of convenient assembly.
In other embodiments of the present invention, as shown in fig. 4, the tension measuring device further includes a mounting flange 900 connected to the outer side of the mounting plate 300. The mounting flange 900 is provided with bolt holes 910. The tension measuring device can be mounted on an external device by connecting the mounting flange 900 and the external device through bolts. The tension measuring device is convenient and quick to install.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The tension sensor comprises a limiting outer protective sleeve, a sensor assembly and a mounting plate; the periphery of the inner side surface of the mounting plate is in threaded connection with the limiting outer protective sleeve; it is characterized by also comprising a boss; the boss is arranged on the inner side surface of the mounting plate; the sensor assembly is mounted on the boss.
2. The tension sensor of claim 1, further comprising a bearing connection and a bearing; the bearing connecting piece is arranged in the limiting outer protective sleeve; an inner cavity is arranged in the bearing connecting piece; the bearing is arranged in the inner cavity; the sensor assembly and the boss are inserted into the inner cavity from one end of the bearing connector.
3. The tension sensor of claim 1, wherein the boss is integrally formed with the mounting plate.
4. The tension sensor of claim 2, wherein the sensor assembly includes a spring beam and a strain gage; the elastic beam is arranged on the boss and connected with the inner wall of the bearing connecting piece; the strain gauge is mounted on the surface of the elastic beam.
5. The tension sensor according to claim 4, wherein the mounting plate is provided at its periphery with a plurality of first threaded holes for threaded connection with the restraining outer protective sheath; the first threaded holes are circumferentially arranged; the diameter of the boss is larger than the width of the elastic beam and smaller than the diameter of the circumference formed by the first threaded hole.
6. The tension sensor according to claim 5, wherein the mounting plate is provided at an outer circumference thereof with a plurality of second screw holes for connection with an external device; the second threaded hole is circumferentially arranged and is arranged on the same circumference as the first threaded hole.
7. A tension sensor as claimed in any one of claims 1 to 5, wherein a clearance groove is provided in the centre of the outer side of the mounting plate.
8. The tension sensor according to claim 2, wherein a clamp spring groove is formed in the inner cavity, a clamp spring is detachably arranged in the clamp spring groove, and the clamp spring abuts against the bearing so as to limit the axial movement of the bearing along the inner cavity.
9. A tension sensor as claimed in any one of claims 1 to 5, wherein the side of the restraining sheath is provided with a fixing head for passing a cable.
10. A tension measuring device comprises a guide roller; characterized in that the tension sensors of any one of claims 1 to 9 are respectively mounted at both ends of the guide roller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222627196.XU CN218381377U (en) | 2022-09-30 | 2022-09-30 | Tension sensor and tension measuring device equipped with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222627196.XU CN218381377U (en) | 2022-09-30 | 2022-09-30 | Tension sensor and tension measuring device equipped with the same |
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| Publication Number | Publication Date |
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| CN218381377U true CN218381377U (en) | 2023-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222627196.XU Active CN218381377U (en) | 2022-09-30 | 2022-09-30 | Tension sensor and tension measuring device equipped with the same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117516779A (en) * | 2023-10-31 | 2024-02-06 | 钛玛科（北京）工业科技有限公司 | Structure and working method of tension sensor |
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2022
- 2022-09-30 CN CN202222627196.XU patent/CN218381377U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117516779A (en) * | 2023-10-31 | 2024-02-06 | 钛玛科（北京）工业科技有限公司 | Structure and working method of tension sensor |
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