CN203443725U - Double-range tension sensor - Google Patents
Double-range tension sensor Download PDFInfo
- Publication number
- CN203443725U CN203443725U CN201320373967.5U CN201320373967U CN203443725U CN 203443725 U CN203443725 U CN 203443725U CN 201320373967 U CN201320373967 U CN 201320373967U CN 203443725 U CN203443725 U CN 203443725U
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- elastic body
- range
- double
- self
- ball bearing
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Abstract
The utility model discloses a double-range tension sensor which comprises an elastic body, and Wheatstone bridges. The interior of the elastic body is provided with a central hole which is supplied for the installation of a bearing. The sensor is characterized in that the elastic body is provided with two grooves around the central hole from the inside to the outside, thereby forming an internal small-range elastic body and an external large-range elastic body; the Wheatstone bridges are respectively installed in the deformation zones of the internal small-range elastic body and the external large-range elastic body; meanwhile, the interior of the elastic body is provided with overload protection structures in the opposite directions, thereby effectively protecting the elastic body from overload deformation; and the center of the elastic body is equipped with a self-aligning ball bearing which is used for replacing a bearing pedestal, and meanwhile, the self-aligning ball bearing can rotate along with a rolling shaft at the same time, and is suitable for the occasions of dynamic rotation. Compared with the prior art, the tension sensor is applicable to the occasions which need frequent tension adjustment and have compact structures. The self-aligning ball bearing is placed inside the sensor, thereby eliminating the impact that the rolling shaft generates an error caused by the change of deflection, and improving the precision and stability of the sensor during a process of actual use.
Description
Technical field
The utility model relates to the sensor on a kind of dynamometry instrument, and what be specifically related to is a kind of tension pick-up.
Background technology
General axis through type tension sensor comprises the cover plate at elastic body, two ends, elastic body left and right, bearing and be affixed on the strainometer on elastic body.But general axis through type tension sensor only has a range, for the larger occasion of tension force power value fluctuation, often need more emat sensor, to production, bring some inconvenience.Built-in bearing is selected deep groove ball bearing, and because this bearing does not possess aligning ability, bearing and roll shaft decentraction during installation, cause measuring accuracy to decline.
Tension pick-up is mainly used in papermaking, iron and steel, weaving, coating, printing packaging, rubber and metal forming etc. and batches on opertaing device and production line.Because equipment has different requirements to Tensity size when processing different cultivars and width material, often emat sensor more, not only needs again to demarcate, and more impact is produced.
At Chinese patent literature library searching, with double-range, sensor and tension force, combine and retrieve, do not find documents.
Utility model content
Technical problem to be solved in the utility model is the double-dial tension pick-up of tension force while providing a kind of compact conformation, volume detection little, easy for installation to walk around rolling roll shaft for the above-mentioned state of the art.
Another technical matters to be solved in the utility model is to provide a kind of double-dial tension pick-up with aligning function.
The utility model solves the problems of the technologies described above adopted technical scheme: a kind of double-dial tension pick-up, and it comprises elastic body, resistance bridge, elastic body inside has the center pit of installing for bearing, it is characterized in that:
Elastic body has two grooves from the inside to the outside around center pit, thereby form the inside, is the elastic body of small-range, the elastic body that outside is wide range, and each elastic body has been installed resistance bridge in the distorted area of oneself.
Preferably, described elastomeric distorted area is by the upper and lower grooved bore of own elastic body and miscellaneous part junction, thereby forms crossbeam in junction, as the distorted area of oneself.
Further improve; between the elastic body of described small-range and the elastic body of wide range, be provided with forward and reverse overcurrent protection structure; its top and bottom between the elastic body of small-range and the elastic body of wide range have overload protection stepped hole, are plugged with power transmission pin in stepped hole.
Improve, described elastic body internal face has overload protection stepped hole for the elastic body left side of wide range, as forward and reverse overcurrent protection structure again.
As improvement, described elastic body inside center hole coordinates with self-aligning ball bearing, with circlip by self-aligning ball bearing axial location in center pit.Self-aligning ball bearing is axially located in elastic body inside like this, and when rolling roll shaft passes sensor, self-aligning ball bearing inner ring rolls together with roll shaft.When roll shaft stress deformation produces degree of disturbing, self-aligning ball bearing is adjusted angle thereupon, guarantees with roll shaft with one heart, reduces to change because of angle the error causing.
Finally, described elastic body left and right side is distributed with left and right cover plate, and wherein right cover plate has cooperation axis hole, and screw through left cover and elastic body, is connected with the threaded hole of right cover plate successively, and left and right cover plate, elastic body are assembled into one.
Compared with prior art, the utility model has the advantage of:
1, the utility model tension pick-up has two independently signal outputs, and non-interference, compact conformation.
2, the utility model tension pick-up is provided with self-aligning ball bearing, can be very easily by roll shaft through bearing, guarantee that roll shaft and self-aligning bearing are concentric, reduce the measuring error causing because of degree of disturbing that roll shaft stress deformation produces.
3, each range Duan Jun of the utility model LOAD CELLS has an overload protecting mechanism, all can play a protective role, thereby guarantee that sensor has extremely strong overload capacity on pressurized and tension both direction.
Accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Fig. 2 is the be hit by a bullet structural representation of gonosome of Fig. 1.
Embodiment
Below in conjunction with accompanying drawing, embodiment is described in further detail the utility model.
Fig. 1 is the structural representation of the utility model LOAD CELLS, comprises left cover 1, elastic body 2, self-aligning ball bearing 3, and circlip for hole 4, right cover plate 5 and socket head cap screw 6 have cooperation axis hole in the middle of right cover plate 5.Self-aligning ball bearing 3 is positioned at the center pit of elastic body 2, with two circlip for holes 4, carries out axial location, prevents self-aligning ball bearing axial float.Socket head cap screw 6 passes left cover 1 and elastic body 2 successively, thereby is connected and is assembled into one with the threaded hole of right cover plate 5.
As shown in Figure 2, after elastic body 2 warp cutting processing, around center pit, form from the inside to the outside two line cutting grooves 21,22, thereby forming the inside is the elastic body 24 of small-range, outside is the elastic body 25 of wide range, and wherein elastic body 25 distorted areas of wide range are to distinguish up and down grooved bore 25.1 in own elastic body right side and the outside junction of elastic body 2, thereby form crossbeam 25.2 in this junction, as own distorted area, install the resistance bridge that own strainometer forms; In like manner, elastic body 24 distorted areas of small-range are to distinguish up and down grooved bore 24.1 in the elastic body junction of own elastic body left side and wide range, thereby in this junction, form crossbeam 24.2, as own distorted area, install the resistance bridge that own strainometer forms;
In order to protect elastic body to produce plastic yield because of overload, between the elastic body of small-range and the elastic body of wide range, be provided with forward and reverse overcurrent protection structure, its top and bottom between the elastic body of small-range and the elastic body of wide range have overload protection stepped hole 23, are plugged with power transmission pin in stepped hole 23; And on the left of the elastic body of elastic body internal face for wide range, also have overload protection stepped hole 26, as own forward and reverse overcurrent protection structure, when the elastic body of wide range also transships, can rely on this stepped hole 26.
Its principle of work: transfer loads to by self-aligning ball bearing 3 on the elastic body 24 of small-range, make elastic body 24 stands under load of small-range, corresponding deformation occurs, by resistance bridge, power value is transformed into the voltage signal being directly proportional to power value.When load increases to a certain degree; elastic body 24 tops of small-range, to overload protection stepped hole 23, transfer loads to the elastic body 25 of wide range, make elastic body 25 stands under load of wide range; there is corresponding deformation, by resistance bridge, power value is transformed into the voltage signal being directly proportional to power value.As can be seen here, small-range place is first out of shape, along with the increase of deflection, and the effect of small-range overload protecting mechanism, wide range place starts working, thereby reaches two independently measuring-signals, and makes compact conformation.
So from structure, this product has changed the feature that tension pick-up only has a range, it possesses compact conformation, easy for installation, the advantage such as more economically.Say technically, the more single range of elastomer structure is more complicated, but it has realized two ranges of a sensor, and the use of self-aligning ball bearing has improved measuring accuracy and the stability of sensor.From practicality, because some equipment has different requirements to Tensity size when processing different cultivars and width material, frequent emat sensor more, not only need again to demarcate, more impact is produced, and can be used for detecting the Tensity size when walking around rolling rod axle such as papermaking, iron and steel, weaving, coating, printing packaging, rubber and metal forming.
Claims (6)
1. a double-dial tension pick-up, it comprises elastic body, resistance bridge, elastic body inside has the center pit of installing for bearing, it is characterized in that:
Elastic body has two grooves from the inside to the outside around center pit, thereby form the inside, is the elastic body of small-range, the elastic body that outside is wide range, and each elastic body has been installed resistance bridge in the distorted area of oneself.
2. double-dial tension pick-up according to claim 1, is characterized in that described elastomeric distorted area is by the upper and lower grooved bore of own elastic body and miscellaneous part junction, thereby at junction formation crossbeam, as the distorted area of oneself.
3. double-dial tension pick-up according to claim 1; it is characterized in that being provided with forward and reverse overcurrent protection structure between the described elastic body of small-range and the elastic body of wide range; its top and bottom between the elastic body of small-range and the elastic body of wide range have overload protection stepped hole, are plugged with power transmission pin in stepped hole.
4. according to the double-dial tension pick-up described in claim 1 or 2 or 3, it is characterized in that described elastic body internal face has overload protection stepped hole for the elastic body left side of wide range, as forward and reverse overcurrent protection structure.
5. double-dial tension pick-up according to claim 1, is characterized in that described elastic body inside center hole coordinates with self-aligning ball bearing, with circlip by self-aligning ball bearing axial location in center pit.
6. double-dial tension pick-up according to claim 1, it is characterized in that described elastic body left and right side is distributed with left and right cover plate, wherein right cover plate has cooperation axis hole, screw is successively through left cover and elastic body, be connected with the threaded hole of right cover plate, left and right cover plate, elastic body are assembled into one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320373967.5U CN203443725U (en) | 2013-06-26 | 2013-06-26 | Double-range tension sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320373967.5U CN203443725U (en) | 2013-06-26 | 2013-06-26 | Double-range tension sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203443725U true CN203443725U (en) | 2014-02-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320373967.5U Expired - Fee Related CN203443725U (en) | 2013-06-26 | 2013-06-26 | Double-range tension sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203443725U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316314A (en) * | 2014-11-18 | 2015-01-28 | 河海大学常州校区 | Big sensor and small sensor switching structure with pin shafts arranged side by side |
| CN107044898A (en) * | 2017-03-28 | 2017-08-15 | 东南大学 | A kind of six-dimension force sensor of flexible body structure |
| CN112067184A (en) * | 2020-10-15 | 2020-12-11 | 深圳市鑫精诚科技有限公司 | Penetration type tension sensor with overload protection |
-
2013
- 2013-06-26 CN CN201320373967.5U patent/CN203443725U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316314A (en) * | 2014-11-18 | 2015-01-28 | 河海大学常州校区 | Big sensor and small sensor switching structure with pin shafts arranged side by side |
| CN104316314B (en) * | 2014-11-18 | 2016-11-30 | 河海大学常州校区 | Bearing pin side-by-side size sensor transformational structure |
| CN107044898A (en) * | 2017-03-28 | 2017-08-15 | 东南大学 | A kind of six-dimension force sensor of flexible body structure |
| CN107044898B (en) * | 2017-03-28 | 2022-11-29 | 东南大学 | Six-dimensional force sensor with elastomer structure |
| CN112067184A (en) * | 2020-10-15 | 2020-12-11 | 深圳市鑫精诚科技有限公司 | Penetration type tension sensor with overload protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20200626 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |