CN102735397B - Device for calibrating pull pressure gauge - Google Patents
Device for calibrating pull pressure gauge Download PDFInfo
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- CN102735397B CN102735397B CN201210216097.0A CN201210216097A CN102735397B CN 102735397 B CN102735397 B CN 102735397B CN 201210216097 A CN201210216097 A CN 201210216097A CN 102735397 B CN102735397 B CN 102735397B
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Abstract
The invention relates to a device for calibrating a pull pressure gauge. The device comprises a vertical test frame, a force value weight (25) and a pull-press converting frame (40), wherein the vertical test frame is composed of a support body (11) and a flat plate (12); the pull-press converting frame (40) is mainly composed of a frame body, a coping piece and a drag hook; the pull pressure gauge (21) is fixedly arranged on the flat plate (12) of the vertical test frame through a bolt; a pulling force end (23) of a center rod of the pull pressure gauge (21) is vertical downward; the vertical test frame is in a bilateral symmetric regular shape; the coping piece is connected with the central position at the upper end of the frame body and is fixedly connected with a pressure end (22) of the center rod of the pull pressure gauge through a built-in threaded hole; the drag hook is connected with the central position of the lower end of the vertical test frame; and the force value weight (25) is hung on the drag hook. According to the device, the pull-press converting frame is smartly utilized to convert a pulling force of the force value weight into the pressure of the pull pressure gauge, so that the calibrations for the pulling force and the pressure of the pull pressure gauge are both realized.
Description
Technical field
The present invention relates to a kind of detection/calibrating installation of power value, be applicable to the device of pointer-type or digital pressure meter calibrating.
Background technology
For the accuracy that guarantees to measure, gauging instrument will often be calibrated.
At present, for the device of pressure meter calibrating as shown in Figure 1 and Figure 2.This device comprises by supporter 11 and the dull and stereotyped 12 vertical testing jigs that form, power value counterweight 25.Dull and stereotyped 12 are fixed on supporter 11, have fluting on it.Screw on pressure meter 21 back is taken off, then be fixed on through longer screw 13 on the fluting of flat board 12 of aforementioned testing jig, vertically down, vertically upward, its index dial 211 outwardly for the pressure end 22 of its center bar for the pulling force end 23 of its center bar.Standard accessory-drag hook 24 that pressure meter is equipped with is installed on the pulling force end 23 of the center bar of pressure meter, and power value counterweight 25 is suspended on drag hook 24 can carry out the calibration of pulling force.
But said apparatus, can only be used for the pulling force calibration of pressure meter.If pressure meter will carry out pressure (or thrust, be below referred to as pressure) calibration, also need to be equipped with in addition corresponding test board, standard dynamometer, standard force-measuring lever or by pressure transducer etc.
Summary of the invention
The present invention solve the existing device for pressure meter calibrating can only calibrate pulling force, cannot base measuring pressure problem.
For this reason, the invention provides a kind of device for pressure meter calibrating, except comprising by supporter and dull and stereotyped vertical testing jig form, power value counterweight, this device also comprises that the main pressure being made up of framework, the part that bears down on one, drag hook draws conversion frame; Aforementioned framework is symmetrical regular shape; Pressure meter is fixed on through screw on the flat board of aforementioned testing jig, and the pulling force end of its center bar vertically down; The part that bears down on one is connected to center, framework upper end and is fixedly connected with the pressure end of the center bar of pressure meter by built-in threaded hole; Drag hook is connected to center, framework lower end, and power value counterweight is suspended on drag hook.
The present invention, for the device of pressure meter calibrating, is on existing apparatus, to have added simple pressure of structure to draw conversion frame.Pressure draws conversion frame dexterously the power value counterweight that is originally pulling force to be changed into the pressure of the pressure end of the center bar to pressure meter, thereby the pressure calibration of pressure meter is achieved.Certainly, before pressure calibration, because pressure is drawn the existence that transforms the weight of frame own, should be by dial needle or digital displaying value's zero setting.Simultaneously for guarantee measurement range, press to draw transform frame weight own should be controlled at do not affect in pressure survey, be limited to good.
As a kind of preferred version, the present invention is for the device of pressure meter calibrating, and pressing and drawing the center, framework upper end of conversion frame is threaded hole; The part that bears down on one is the bolt of the built-in threaded hole of head, and its screw portion is threaded on the threaded hole of framework; Above-mentioned drag hook is fixedly connected in framework.When use, first the screw portion of the part that bears down on one is screwed in to the threaded hole in framework; Again the pressure end of the center bar of pressure meter is screwed in to the built-in threaded hole of the part head that bears down on one; Then the screw on pressure gauge back is taken off, be fixed on through longer screw on the dull and stereotyped fluting of testing jig; Draw the rotation that transforms frame to regulate by pressure, guarantee to press to draw to transform frame and testing jig vertical plane and keep spacing, to be not interfered when calibration.
Obviously, the present invention is for the device of pressure meter calibrating, and pressing and drawing the center, framework upper end of conversion frame is threaded hole, and the pressure end of the center bar of pressure meter also can directly be fixed in this threaded hole.
But the present invention is for the device of pressure meter calibrating, while formerly carrying out pulling force calibration (prior art), pressure meter has been fixed on the dull and stereotyped fluting of testing jig; Carry out again pressure calibration, pressure meter will be pulled down from the dull and stereotyped fluting of testing jig, and pressure draw transform frame install after be fixed again.If first carry out pressure calibration, also will be after pressure calibration pressure be drawn and is transformed frame and pull down and just can carry out pulling force calibration, otherwise press draw transform the framework of frame will be very long, put into for power value counterweight to reserve sufficient space.Like this, all more loaded down with trivial details with working routine.
For this reason, as further improvement, the present invention, for the device of pressure meter calibrating, presses the center of the upper and lower side that draws the framework that transforms frame to be unthreaded hole; The part that bears down on one is the bolt of the built-in threaded hole of head, is connected in framework through nut.Formerly carry out after pulling force calibration, then while carrying out pressure calibration, only the part that bears down on one need be spun on to the pressure end of the center bar of pressure meter, then framework is inserted in and is beared down on one on part screw rod, through nut fixing press to draw transform frame.In like manner, formerly carry out after pressure calibration, then carry out pulling force when calibration, only need nut to select to press to draw conversion frame, framework is taken off from the part screw rod that bears down on one, then the part that bears down on one is screwed out to the pressure end of the center bar of pressure meter.Above-mentioned working routine, all need not take off refitting from the flat board of testing jig by pressure meter, operates simpler.
But, consider that the screw rod of the part that bears down on one and the unthreaded hole of framework exist gap, be difficult to guarantee to press to draw to transform after pressure meter is ajusted, is fixed on to frame keep balance, thus the effect of impact calibration.Therefore, the present invention, for the device of pressure meter calibrating, also will consider balance adjustment problem.For this reason, framework can be split as to symmetrical upper frame body and lower frame body, connect through two groups of bolts, nut.Regulate the height of left and right upper frame body and lower frame body by cap rotation, then reach equilibrium pressure and draw the object that transforms frame.
In addition, draw for convenience of pressing the dismounting that transforms frame, draw the drag hook transforming on frame also can be adopted as the standard accessory that pressure meter is equipped with, be connected in framework through bolt.
Accompanying drawing explanation
Further illustrate the present invention below in conjunction with the drawings and specific embodiments.
Fig. 1 is the existing device schematic diagram for pressure meter calibrating;
Fig. 2 is the side view of Fig. 1 shown device, for clarity sake, has adopted analysing and observe in Fig. 1 centerline;
Fig. 3 is the device schematic diagram for pressure meter calibrating of the present invention;
Fig. 4 is the side view of Fig. 3 shown device, for clarity sake, has adopted analysing and observe in Fig. 3 centerline;
Fig. 5 is the schematic diagram that the pressure of the device for pressure meter calibrating of the present invention is drawn an embodiment who transforms frame, for clarity sake, has adopted semisectional view and the fracture technique of painting;
Fig. 6 is the schematic diagram that the pressure of the device for pressure meter calibrating of the present invention is drawn another embodiment that transforms frame, for clarity sake, has adopted semisectional view and the fracture technique of painting.
Embodiment
For technological means, creation characteristic that the present invention is realized, reach object and effect is easy to understand, below in conjunction with concrete diagram, further set forth the present invention.
As shown in Figure 3, Figure 4, the present invention comprises for the device of pressure meter calibrating: by supporter 11 and the dull and stereotyped 12 vertical testing jigs that form, the pressure being mainly made up of framework, the part that bears down on one, drag hook is drawn and transformed frame 40, power value counterweight 25.Dull and stereotyped 12 are welded on supporter 11, have fluting on it.Screw on pressure meter 21 back is taken off, then be fixed on through longer screw 13 on the fluting of flat board 12 of aforementioned testing jig, vertically down, the pressure end 22 of its center bar vertically upward for the pulling force end 23 of its center bar.Aforementioned framework is symmetrical hollow rectangular shape; The part that bears down on one is connected to center, framework upper end and is fixedly connected with by the pressure end 22 of built-in threaded hole and the center bar of pressure meter; Drag hook is connected to center, framework lower end, and power value counterweight 25 is suspended on drag hook.
The present invention is for the device of pressure meter calibrating, power value counterweight 25 transforms the pulling force of frame 40 and presses and draw the self gravitation that transforms frame 40 all to become pressure-acting in the pressure end 22 of the center bar of pressure meter pressing to draw, thereby can carry out pressure calibration to pressure meter.
Pressure is as shown in Figure 5 drawn in an embodiment who transforms frame, and pressing and drawing framework 41 centers, upper end of conversion frame 40 is threaded hole; Bear down on one part 43 for bolt, the built-in threaded hole 432 of its head 431, its screw portion is threaded on the threaded hole of framework 41; Drag hook 42 is arranged on the center of framework 41 lower ends.When pressure calibration, first the screw portion of the part 43 that bears down on one is screwed in to the threaded hole in framework 41; Again the pressure end of the center bar of pressure meter is screwed in to the built-in threaded hole 432 of the part head that bears down on one; Then the screw on pressure gauge back is taken off, be fixed on through longer screw on the dull and stereotyped fluting of testing jig; Draw and transform the rotary fine adjustment of frame by pressure, guarantee to press and draw dull and stereotyped the separating that transforms frame and testing jig, to be not interfered when calibration.This pressure draw transform frame 40 simple in structure, but design, make time should consider its equilibrium problem, precision is higher.
Pressure is as shown in Figure 6 drawn in another embodiment that transforms frame, and framework 30 is made up of symmetrical upper frame body 32 and lower frame body 31 two parts; Upper frame body 32 with lower frame body 31 through two groups of bolts 34/35 about its common center line symmetry, nut 1), nut 2 342/352 is connected; Upper frame body 32, lower frame body 31 centers are unthreaded hole; The bolt that the part 33 that bears down on one is the built-in threaded hole 332 of head, is connected in framework 32 through nut 333; Drag hook 36, for the standard tool that pressure meter is equipped with, is connected to through bolt 37 on the unthreaded hole of lower frame body 31 centers.Adopt the device for pressure meter calibrating of this embodiment, while conversion between pulling force and pressure calibration, pressure meter need not be taken off from the flat board of testing jig, more convenient to operate.Meanwhile, draw owing to can regulating relative position through nut 351/341,352/342 between upper frame body 32 and lower frame body 31, then reaching to press the balance that transforms frame, therefore need not consider himself equilibrium problem when designing, making.
Be more than one of embodiments of the present invention, for those skilled in the art, do not spend performing creative labour, on the basis of above-described embodiment, can do multiple variation, can realize equally object of the present invention.But this variation obviously should be in the protection domain of claims of the present invention.
Claims (4)
1. for the device of pressure meter calibrating, comprise the vertical testing jig being formed by supporter (11) and dull and stereotyped (12), power value counterweight (25); The flat board (12) that pressure meter (21) is fixed on aforementioned testing jig through screw (13) is upper, and the pulling force end (23) of its center bar vertically down; It is characterized in that: this device also comprise the pressure mainly being formed by framework (31,32,41), the part that bears down on one (33,43), drag hook (42,36) draw transform frame (30,40); Aforementioned framework (31,41) is symmetrical regular shape; The pressure end (22) that the part (33,43) that bears down on one is connected to framework (31,41) center, upper end and the center bar by built-in threaded hole (432,332) and pressure meter is fixedly connected with; Drag hook (42,36) is connected to framework (31,41) center, lower end, and power value counterweight (25) is suspended on drag hook (42,36).
2. the device for pressure meter calibrating as claimed in claim 1, is characterized in that: above-mentioned framework (41) center, upper end is threaded hole; The bolt that the part (43) that bears down on one is the built-in threaded hole of head (432), its screw portion is threaded on the threaded hole of framework (31,41); Above-mentioned drag hook (42) is fixedly connected in framework (41).
3. the device for pressure meter calibrating as claimed in claim 1, is characterized in that: above-mentioned framework (31,32,41) is made up of symmetrical upper frame body (32) and lower frame body (31) two parts; Upper frame body (32) is connected through two groups of bolts about its common center line symmetry (34,35), nut one (341,351), nut two (342,352) with lower frame body (31); Upper frame body (32) center is unthreaded hole; The bolt that the part (33) that bears down on one is the built-in threaded hole of head (332), is connected on upper frame body (32) through nut (333).
4. the device for pressure meter calibrating as claimed in claim 3, is characterized in that: the standard accessory that above-mentioned drag hook (42,36) is equipped with for pressure meter, is connected to through bolt (37) on the unthreaded hole of lower frame body (31) center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210216097.0A CN102735397B (en) | 2012-06-28 | 2012-06-28 | Device for calibrating pull pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210216097.0A CN102735397B (en) | 2012-06-28 | 2012-06-28 | Device for calibrating pull pressure gauge |
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| Publication Number | Publication Date |
|---|---|
| CN102735397A CN102735397A (en) | 2012-10-17 |
| CN102735397B true CN102735397B (en) | 2014-05-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210216097.0A Active CN102735397B (en) | 2012-06-28 | 2012-06-28 | Device for calibrating pull pressure gauge |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105444850B (en) * | 2015-12-30 | 2018-10-23 | 苏州钮曼精密机电科技有限公司 | Hyperboloid weighting platform leave from office mechanism |
| CN106153249B (en) * | 2016-05-28 | 2019-09-27 | 中国航空工业集团公司北京长城计量测试技术研究所 | One kind can trace to the source liquid sinusoidal pressure calibrating installation |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100202276B1 (en) * | 1997-07-14 | 1999-06-15 | 정명세 | 6-component force/moment calibration machine |
| TWM243644U (en) * | 2003-07-21 | 2004-09-11 | Jin-Wei Huang | Calibration device for pulling/pressing tester of steel bars |
| JP4559808B2 (en) * | 2004-09-27 | 2010-10-13 | 株式会社ミツトヨ | Torque calibration device and torque calibration method |
| CN201688943U (en) * | 2010-06-08 | 2010-12-29 | 中国航空动力机械研究所 | Load sensor calibrating device |
| CN201993200U (en) * | 2011-03-24 | 2011-09-28 | 东莞市世通仪器检测服务有限公司 | Tensile force calibration device |
| CN102426077B (en) * | 2011-08-19 | 2013-09-11 | 中国商用飞机有限责任公司 | Auxiliary calibration device of push-pull gauge |
| CN202648870U (en) * | 2012-06-28 | 2013-01-02 | 宁波奥克斯空调有限公司 | Device for calibrating pull/press force gauge |
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2012
- 2012-06-28 CN CN201210216097.0A patent/CN102735397B/en active Active
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Effective date of registration: 20170428 Address after: 315191 Yinzhou District Province, Ningbo City, Jiang Shan town on the village of summer ho Patentee after: AUX air conditioning Limited by Share Ltd Address before: 315191 Zhejiang city of Ningbo province Jiangshan town Yinzhou District Mingguang Road No. 1166 Patentee before: Ningbo AUX Group. |