CN2320995Y - Rotary position-limiting pressure transducer - Google Patents
Rotary position-limiting pressure transducer Download PDFInfo
- Publication number
- CN2320995Y CN2320995Y CN 98225759 CN98225759U CN2320995Y CN 2320995 Y CN2320995 Y CN 2320995Y CN 98225759 CN98225759 CN 98225759 CN 98225759 U CN98225759 U CN 98225759U CN 2320995 Y CN2320995 Y CN 2320995Y
- Authority
- CN
- China
- Prior art keywords
- force transferring
- transmission element
- pressure transducer
- force transmission
- rotary spacing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model discloses a rotary position-limiting pressure transducer which is composed of an upper force transferring element with a load-bearing spherical surface, a middle force transferring body, and a lower force transferring element with a load-bearing spherical surface. The upper force transferring element, the middle force transferring body and the lower force transferring element are orderly connected along the same shaft line. One side of the lower force transferring element and the upper force transferring element is provided with a rotary position-limiting surface, and the middle force transferring body is in an S shape. The middle force transferring body is provided with an upper hole slot, a lower hole slot and a central blind hole. The bottom of the central blind hole is fixed with a straining device. The utility model has the advantages of small signal nonlinearity, no linearity compensation and high weighing precision.
Description
The utility model relates to a kind of meausring apparatus, the structure of pressure transducer in the especially relevant meausring apparatus.
In weighing devices such as automobile and rolling stock, pressure transducer is used for supporting weighing platform or support, in order to eliminate the caused pressure measurement signal error of transverse force and eccentric load, the top force transmission element of pressure transducer and bottom force transmission element adopt the structure of band carrying sphere usually, make it have characteristic from alignment.The rotary spacing face is set on the force transmission element of bottom simultaneously, in use rotates gradually, influence metering performance and can pull apart the signal cable line to prevent pressure transducer.Though this class pressure sensor structure is more reasonable, measuring accuracy is also very high, but also come with some shortcomings, because this class pressure transducer has adopted right cylinder or solid square shaft as middle force transfer body, strain devices such as foil gauge just are fixed on around the central authorities of right cylinder or square shaft on the side, find that in use the pressure sensor signal of this structure is non-linear bigger, need carry out linear compensation.
It is a kind of non-linear little that the purpose of this utility model is to provide, and need not to carry out linear compensation, the pressure transducer with rotary spacing that weighing precision is high.
In order to achieve the above object, pressure transducer with rotary spacing of the present utility model, bottom force transmission element by the top force transmission element of band carrying sphere, middle force transfer body and band carrying sphere is formed, the three connects successively along same axis, there is the rotary spacing face side of one of bottom force transmission element and top force transmission element, middle force transfer body is the S type, and this centre force transfer body has upper and lower hole slot and central blind hole, and the central blind hole bottom surface is strain device fixedly.
For the area of the carrying sphere that makes the pressure transducer with rotary spacing of the present utility model does not reduce more because establishing the rotary spacing face, thereby influence the hunting range of sensor, and also for process, easy for installation, the rotation restraint face that the bottom of band carrying sphere or force transmission element side, top have hexagonal to distribute.
After adopting such structure, because middle the force transfer body with pressure transducer of rotary spacing has adopted S type structure, the fixing strain device in the central blind hole bottom surface of this S type centre force transfer body makes that the signal non-linear of this pressure transducer is little, thereby need not linear compensation, weighing precision is higher.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is the pressure sensor structure front schematic view with rotary spacing of the present utility model;
Fig. 2 is the cut-open view of Fig. 1 along the A-A line.
As shown in Figure 1, 2, pressure transducer with rotary spacing, top force transmission element (2) by band carrying sphere (1), the bottom force transmission element (7) of middle force transfer body (3) and band carrying sphere (8) is formed, the three connects successively along same axis, the three makes one in the present embodiment, also the three can be made respectively for easy to process, combines then.Top force transmission element (2) side is cylindrical, the rotary spacing face (9) that bottom force transmission element (7) side has hexagonal to distribute.Middle force transfer body (3) is the S type, force transfer body (3) profile is a rectangular parallelepiped in the middle of this S type, the first half at middle force transfer body (3) has hole slot (4), the latter half also has hole slot (6), two hole slots (4), (6) equal and opposite in direction, opening are opposite, and equate apart from the centre distance of middle force transfer body (3).The center of middle force transfer body (3) has central blind hole (5), and the bottom surface of central blind hole (5) is strain device fixedly, and the signal of strain device can be by output line (10) output through middle force transfer body (3) side.
Also there are some conversion in the utility model, and for example, the profile of force transfer body (3) is not limited to rectangular parallelepiped in the middle of the S type, also can be right cylinder or oblate cylinder etc.; Also rotary spacing face (9) can be located at top force transmission element (2) side, and bottom force transmission element (7) side is cylindrical; Rotary spacing face (9) also can be formed other shape as forming quadrilateral body or octagon body etc., all falls within the protection domain of the present utility model with up conversion.
Claims (3)
1, a kind of pressure transducer with rotary spacing, the bottom force transmission element (7) that is carried top force transmission element (2), middle force transfer body (3) and the band carrying sphere (8) of sphere (1) by band is formed, the three connects successively along same axis, bottom force transmission element (7) and top force transmission element (2) both one of the side rotary spacing face (9) is arranged, it is characterized in that: middle force transfer body (3) is the S type, this centre force transfer body (3) has upper and lower hole slot (4), (6) and central blind hole (5), and central blind hole (5) bottom surface is strain device fixedly.
2, the pressure transducer with rotary spacing according to claim 1 is characterized in that: the rotary spacing face (9) that bottom force transmission element (7) side of described band carrying sphere (8) has hexagonal to distribute.
3, the pressure transducer with rotary spacing according to claim 1 is characterized in that: the rotary spacing face (9) that top force transmission element (2) side of described band carrying sphere (1) has hexagonal to distribute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98225759 CN2320995Y (en) | 1998-01-08 | 1998-01-08 | Rotary position-limiting pressure transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98225759 CN2320995Y (en) | 1998-01-08 | 1998-01-08 | Rotary position-limiting pressure transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2320995Y true CN2320995Y (en) | 1999-05-26 |
Family
ID=33976382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98225759 Expired - Lifetime CN2320995Y (en) | 1998-01-08 | 1998-01-08 | Rotary position-limiting pressure transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2320995Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103557913A (en) * | 2013-11-08 | 2014-02-05 | 丹阳市利康机械有限公司 | Weighing sensing module |
| CN105579818A (en) * | 2013-07-26 | 2016-05-11 | 霍廷格-鲍德温测量技术设备公司 | Rod-shaped force transducer with simplified adjustment |
| CN109520650A (en) * | 2018-12-20 | 2019-03-26 | 蚌埠学院 | Rotation sensor of composite forces for high revolving speed equipment |
-
1998
- 1998-01-08 CN CN 98225759 patent/CN2320995Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105579818A (en) * | 2013-07-26 | 2016-05-11 | 霍廷格-鲍德温测量技术设备公司 | Rod-shaped force transducer with simplified adjustment |
| CN105579818B (en) * | 2013-07-26 | 2018-03-30 | 霍廷格-鲍德温测量技术设备公司 | With the shaft-like force snesor for simplifying adjustment |
| US10067009B2 (en) | 2013-07-26 | 2018-09-04 | Hottinger Baldwin Messtechnik Gmbh | Rod-shaped force transducer with simplified adjustment |
| CN103557913A (en) * | 2013-11-08 | 2014-02-05 | 丹阳市利康机械有限公司 | Weighing sensing module |
| CN109520650A (en) * | 2018-12-20 | 2019-03-26 | 蚌埠学院 | Rotation sensor of composite forces for high revolving speed equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: METTLER-TOLEDO (CHANGZHOU) SCALE & SYSTEM LTD. Free format text: FORMER NAME OR ADDRESS: METELE-TUOLIDUO WEIGHING APPARATUS CO LTD (CHANGZHOU) |
|
| CP01 | Change in the name or title of a patent holder |
Patentee after: Mettler-Toledo (Changzhou) Weighing Equipment System Co., Ltd. Patentee before: Mettler Toledo Changzhou Weighing Apparatus Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |