CN101608952A - Temperature indicator segmentation compensating device - Google Patents
Temperature indicator segmentation compensating device Download PDFInfo
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- CN101608952A CN101608952A CNA2009103045018A CN200910304501A CN101608952A CN 101608952 A CN101608952 A CN 101608952A CN A2009103045018 A CNA2009103045018 A CN A2009103045018A CN 200910304501 A CN200910304501 A CN 200910304501A CN 101608952 A CN101608952 A CN 101608952A
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- push rod
- compensating plate
- temperature
- compensating
- rotating shaft
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Abstract
The invention discloses a kind of temperature indicator segmentation compensating device, it comprises temperature pointer (1), bucking-out system and bourdon tube (3), bucking-out system comprises compensating plate I (2) and compensating plate II (4), bucking-out system is fixedlyed connected with the rotating shaft of temperature pointer (1), coaxial connection compensating plate II (4) below compensating plate I (2) is equipped with push rod (5) below compensating plate II (4), bourdon tube (3) is housed below the push rod (5).The present invention is by being provided with the compensating plate II coaxial with compensating plate I, and between the rotating shaft with the rotating shaft of push rod and bucking-out system and temperature pointer an eccentric throw is set, and the track slotted disk is set perhaps, cam disc limits the track that push rod rotates, and the realization temperature section compensates.The present invention has carried out effective compensation to heat indicator, has further dwindled the temperature detection error.In addition, compensation system of the present invention is simple in structure, easily make, and cost is low, helps applying.
Description
Technical field
The present invention relates to a kind of temperature compensation means that is used for heat indicator, particularly can play the temperature compensation means of segmented compensation effect.
Background technology
Transformer, especially large-scale power transformer can produce a large amount of heats at work, cause the rising of transformer internal temperature, cause accident when temperature is too high easily, therefore, tend to be equipped with a temperature measuring equipment, are used to monitor transformer internal temperature situation.The temperature measuring equipment that adopts all is to stretch into the transformer oil box top by a probe at present, liquid or gas change because of temperature variation causes internal pressure in the probe, conduct to the multi-turn bourdon tube by kapillary, cause that multi-turn bourdon tube axle center rotates, and indicates temperature by pointer on index dial.Because the kapillary and the multi-turn bourdon tube of temperature measuring equipment place the transformer outside,, its internal liquid or gas causes that internal pressure changes the generation measuring error, therefore is necessary this influence is eliminated thereby can being subjected to the Temperature Influence of surrounding environment.So, the temperature measuring equipment that the band bucking-out system occurred: in whole thermometric process, bucking-out system goes to compensate the rotation that multi-turn bourdon tube axle center causes because of environment temperature because of the deformation that variation of ambient temperature self takes place, thereby eliminates the index error of bringing because of environment temperature.This compensating action all exists in whole temperature survey range, and the size of compensation rate is only relevant with environment temperature, and irrelevant with the height of dut temperature.In fact, the compensation rate that different dut temperatures is required is also inequality, some heat indicator does not even need ambient temperature compensation when measuring low temperature, therefore single temperature-compensated system can not be eliminated the error that environment temperature causes fully, some in addition in the local measurement scope, strengthen measuring error.This haves much room for improvement.
Summary of the invention
Technical matters to be solved by this invention is, a kind of temperature indicator segmentation compensating device is provided, and the heat indicator of monitoring transformer temperature is carried out the segmentation temperature compensation in whole measurement range ability.
Technical scheme of the present invention: for solving the problems of the technologies described above, temperature indicator segmentation compensating device of the present invention comprises temperature pointer, bucking-out system and bourdon tube, bucking-out system comprises compensating plate I and compensating plate II, bucking-out system is fixedlyed connected with the rotating shaft of temperature pointer, compensating plate II be connected compensating plate I below, below compensating plate II, push rod is housed, bourdon tube is housed below the push rod.
Described compensating plate I is a bimetallic strip, compensating plate II for compensating plate I at the synthermal sheet metal that down has thermal deformation difference.
Described bourdon tube coils shape in the shape of a spiral.
Described push rod is
Shape, its traversing section is fixed in the rotating shaft, and vertical section promotes the long handle of compensating plate I or the short handle of compensating plate II.
The cross section of the long handle of described compensating plate I is
Shape, the short handle of compensating plate II is positioned at
The lower right of shape.
As a kind of selection of the present invention, an eccentric throw a is arranged between the rotating shaft of the rotating shaft of push rod and bucking-out system and temperature pointer, push rod is coaxial with bourdon tube.
The length of described eccentric throw a is 0.5mm-4mm.
As another kind of selection the of the present invention, between the Kong Weiyi slotted hole that push rod cooperates with rotating shaft, push rod and bourdon tube the track slotted disk that cooperates the push rod rotation is housed.
Have the track groove on the described track slotted disk, the track groove comprises interior track and the outer track that joins, and the lower end of push rod vertical section snaps in the track groove.
As another selection of the present invention, the Kong Weiyi slotted hole that described push rod cooperates with rotating shaft is provided with cam disc and extension spring between push rod and the bourdon tube, and extension spring is positioned at the below of cam disc, and the lower end of push rod vertical section is stuck in the outer ledge of cam disc.
The present invention is by being provided with the compensating plate II coaxial with compensating plate I, and between the rotating shaft with the rotating shaft of push rod and compensating plate I and temperature pointer an eccentric throw is set, make temperature pointer when index dial left half side, compensating plate II is pushed, make this heat indicator be subjected to the temperature compensation function of compensating plate II, when temperature pointer when being in index dial right half side, push rod will not reach compensating plate II, thereby I promotes by compensating plate, thereby is subjected to the temperature compensation function of compensating plate I; Perhaps the hole that cooperates with rotating shaft of push rod is set to slotted hole, and be equipped with the track slotted disk of a band track groove, make push rod in rotation process, can outwards move, thereby make push rod promote, realize the temperature section compensation from being promoted to change to by the long handle of compensating plate I by the short handle of compensating plate II.Perhaps, utilize cooperating of cam disc and extension spring, make the track of push rod change, realize the temperature section compensation equally along the variation of cam disc outer ledge shape.The present invention has carried out effective compensation to heat indicator, has further dwindled thermometric error.In addition, compensation system of the present invention is simple in structure, easily make, and cost is low, helps applying.
Description of drawings
Fig. 1 is the structural representation when temperature pointer is pointed to the index dial left side in the prior art;
Fig. 2 is the plan structure synoptic diagram of Fig. 1;
Fig. 3 is the structural representation when temperature pointer is pointed to the index dial right side in the prior art;
Fig. 4 is the plan structure synoptic diagram of Fig. 3;
Fig. 5 is eccentric setting the between the rotating shaft of the rotating shaft of push rod among the present invention and bucking-out system and temperature pointer, and the structural representation of temperature pointer when pointing on the left of the index dial;
Fig. 6 is the plan structure synoptic diagram of Fig. 5;
Fig. 7 is eccentric setting the between the rotating shaft of the rotating shaft of push rod among the present invention and bucking-out system and temperature pointer, and the structural representation during temperature pointer sensing index dial right side;
Fig. 8 is the plan structure synoptic diagram of Fig. 7;
Fig. 9 is for being equipped with the track slotted disk between push rod among the present invention and the bourdon tube, and the structural representation of temperature pointer when pointing to the index dial left side;
Figure 10 is the plan structure synoptic diagram of Fig. 9;
Figure 11 is for being equipped with the track slotted disk between push rod among the present invention and the bourdon tube, and the structural representation of temperature pointer when pointing to the index dial right side;
Figure 12 is the plan structure synoptic diagram of Figure 11;
Figure 13 is for being equipped with cam disc and extension spring between push rod among the present invention and the bourdon tube, and the structural representation of temperature pointer when pointing to the index dial left side;
Figure 14 is the plan structure synoptic diagram of Figure 13;
Figure 15 is for being equipped with cam disc and extension spring between push rod among the present invention and the bourdon tube, and the structural representation of temperature pointer when pointing to the index dial right side;
Figure 16 is the plan structure synoptic diagram of Figure 15;
Figure 17 is the shape and structure synoptic diagram of cam disc;
Figure 18 is the plan structure enlarged diagram of the long handle of the short handle of compensating plate II among the present invention and compensating plate I.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further, at first, simply introduce the background technology related content, as Fig. 1-shown in Figure 4: in the process that dut temperature raises, temperature pointer 1 clockwise rotates from Fig. 1, Fig. 2 locality, turn to Fig. 3, locality shown in Figure 4, push rod 5 rotates together in company with temperature pointer 2, and bucking-out system 2 is under temperature variation, generation hinders clockwise rotating of push rod 5 to counter clockwise direction flexural deformation.This compensation way is the single temperature compensation of carrying out in the gamut scope.Next introduce the utility model for example in detail.
Embodiments of the invention 1: as Fig. 5-shown in Figure 8, temperature indicator segmentation compensating device of the present utility model comprises temperature pointer 1 (indicated temperature scale on index dial), bucking-out system, bourdon tube 3, bucking-out system comprises compensating plate I 2 and compensating plate II 4, and bucking-out system is fixedlyed connected with the rotating shaft of temperature pointer 1, coaxial connection compensating plate II 4 below compensating plate I 2, push rod 5 is housed below compensating plate II 4, bourdon tube 3 is housed below the push rod 5.It is the eccentric throw a of 0.5mm-4mm that one length is arranged between the rotating shaft of the rotating shaft of push rod 5 and compensating plate I 2 and temperature pointer 1, and push rod 5 is coaxial with bourdon tube 3.
Wherein, bourdon tube (Bourdon Tube) is a kind of hollow elasticity metal tube, when internal pressure changes, front end generation displacement is shown on index dial that by temperature pointer bourdon tube of the present utility model coils shape in the shape of a spiral, shape with mosquito-repellent incense, be fixed on by support on the chassis of temperature measuring equipment, front position is positioned at the axle center, can drive rotating shaft and rotate.
Embodiments of the invention 2: as second kind of embodiment of the present utility model, as Fig. 9-shown in Figure 12, it comprises temperature pointer 1 equally, bucking-out system, bourdon tube 3, bucking-out system is fixedlyed connected with the rotating shaft of temperature pointer 1, is coaxially connected with compensating plate II 4 below compensating plate I 2, push rod 5 is housed below compensating plate II 4, bourdon tube 3 is housed below the push rod 5.Wherein, push rod 5 is
Shape, its traversing section is fixed in the rotating shaft, and different is, between the Kong Weiyi slotted hole that push rod 5 cooperates with rotating shaft, push rod 5 and bourdon tube 3 the track slotted disk 6 that cooperates push rod 5 to rotate is housed.Have the track groove on the track slotted disk 6, the track groove comprises interior track 7 and the outer track 8 that joins, and the vertical section of push rod 5 is extended downwards, snaps in the track groove.
Equally according to setting (realizing) by setting departing between outer track 8 and the interior track 7, when temperature is low temperature (as 0-80 ℃) scope, temperature pointer 1 is positioned at the left half side of index dial, as Fig. 9, shown in Figure 10, the vertical section of push rod 5 contacts with the short handle of compensating plate II, heat indicator is not played compensating action, or play the compensating action that compensating plate II 4 brings.When temperature during in high temperature (as 80-160 ℃) scope, temperature pointer 1 is through clockwise rotating the right half side of index dial, as Figure 11, shown in Figure 12, push rod 5 in arriving track 7 and outside during the track intersection 9 of track 8, push rod 5 is outwards pulled out, and the track of its vertical section departs from and (substituted the eccentric throw among the embodiment a), thereby the vertical section of push rod 5 left the short handle of compensating plate II 4, contact with the long handle of compensating plate I 2, play compensating action heat indicator.
Other undeclared items and embodiment 1 are together.
Embodiments of the invention 3: as the third embodiment of the present utility model, as Figure 13-shown in Figure 16, compare with embodiment 2, substitute track slotted disks 6 with cam disc 10 and the extension spring 11 that is positioned at its below, the lower end of the vertical section of push rod 5 is stuck in the outer ledge of cam disc 10, and by extension spring 11 pullings, under the pulling of extension spring 11, the movement locus of push rod 5 is changed with the shape (shape of cam disc 10 is seen shown in Figure 17) of cam disc 10, the vertical section that realizes push rod 5 is promoted by the long handle of the short handle of compensating plate II or compensating plate I 2 respectively in the different temperatures scope, thereby realizes the segmented compensation of temperature.
Other undeclared items and embodiment 2 are together.
Claims (10)
1. temperature indicator segmentation compensating device, it comprises temperature pointer (1), bucking-out system and bourdon tube (3), it is characterized in that: bucking-out system comprises compensating plate I (2) and compensating plate II (4), bucking-out system is fixedlyed connected with the rotating shaft of temperature pointer (1), compensating plate II (4) be connected compensating plate I (2) below, push rod (5) is housed below compensating plate II (4), bourdon tube (3) is housed below the push rod (5).
2. temperature indicator segmentation compensating device according to claim 1 is characterized in that: described compensating plate I (2) is a bimetallic strip, compensating plate II (4) for compensating plate I (2) at the synthermal sheet metal that down has thermal deformation difference.
3. temperature indicator segmentation compensating device according to claim 1 is characterized in that: described bourdon tube (3) coils shape in the shape of a spiral.
4. temperature indicator segmentation compensating device according to claim 1 is characterized in that: described push rod (5) is
Shape, its traversing section is fixed in the rotating shaft, and vertical section promotes the long handle of compensating plate I (2) or the short handle of compensating plate II (4).
5. temperature indicator segmentation compensating device according to claim 4 is characterized in that: the cross section of the long handle of described compensating plate I (2) is
Shape, the short handle of compensating plate II (4) is positioned at
The lower right of shape.
6. temperature indicator segmentation compensating device according to claim 1 is characterized in that: between the rotating shaft of the rotating shaft of push rod (5) and bucking-out system and temperature pointer (1) an eccentric throw a is arranged, push rod (5) is coaxial with bourdon tube (3).
7. temperature indicator segmentation compensating device according to claim 6 is characterized in that: the length of described eccentric throw a is 0.5mm-4mm.
8. temperature indicator segmentation compensating device according to claim 1 is characterized in that: the track slotted disk (6) that cooperates push rod (5) to rotate is housed between the Kong Weiyi slotted hole that push rod (5) cooperates with rotating shaft, push rod (5) and bourdon tube (3)
9. according to claim 4 or 8 described temperature indicator segmentation compensating devices, it is characterized in that: have the track groove on the described track slotted disk (6), the track groove comprises interior track (7) and the outer track (8) that joins, and the lower end of push rod (5) vertical section snaps in the track groove.
10. according to claim 1 or 4 described temperature indicator segmentation compensating devices, it is characterized in that: the Kong Weiyi slotted hole that described push rod (5) cooperates with rotating shaft, be provided with cam disc (10) and extension spring (11) between push rod (5) and the bourdon tube (3), extension spring (11) is positioned at the below of cam disc (10), and the lower end of push rod (5) vertical section is stuck in the outer ledge of cam disc (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910304501 CN101608952B (en) | 2009-07-17 | 2009-07-17 | Temperature indicator segmentation compensating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910304501 CN101608952B (en) | 2009-07-17 | 2009-07-17 | Temperature indicator segmentation compensating device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101608952A true CN101608952A (en) | 2009-12-23 |
| CN101608952B CN101608952B (en) | 2013-10-02 |
Family
ID=41482782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910304501 Active CN101608952B (en) | 2009-07-17 | 2009-07-17 | Temperature indicator segmentation compensating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101608952B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102622008A (en) * | 2012-03-28 | 2012-08-01 | 大连众和光电科技有限公司 | Double-wire compensation type temperature controller for transformer |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB123751A (en) * | 1918-02-23 | 1919-11-27 | Motometer Company Inc | Improvements in and relating to Temperature-indicating Devices or Gages. |
| US2387909A (en) * | 1943-08-24 | 1945-10-30 | Manning Maxwell & Moore Inc | Temperature compensated bourdon tube instrument |
| GB1097691A (en) * | 1963-04-26 | 1968-01-03 | K D G Instr Ltd | Improvements in or relating to temperature responsive devices |
| CN201497584U (en) * | 2009-07-17 | 2010-06-02 | 杭州科宏仪器仪表有限公司 | Sectional compensating device of temperature indicator |
| CN201535698U (en) * | 2009-07-17 | 2010-07-28 | 杭州科宏仪器仪表有限公司 | Segmented compensation arrangement of temperature indicator |
| CN201561811U (en) * | 2009-07-17 | 2010-08-25 | 杭州科宏仪器仪表有限公司 | Segmental compensation device of a temperature indicating gauge |
| CN202101775U (en) * | 2011-04-08 | 2012-01-04 | 杭州科宏仪器仪表有限公司 | Temperature indicator segmented compensation device |
-
2009
- 2009-07-17 CN CN 200910304501 patent/CN101608952B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB123751A (en) * | 1918-02-23 | 1919-11-27 | Motometer Company Inc | Improvements in and relating to Temperature-indicating Devices or Gages. |
| US2387909A (en) * | 1943-08-24 | 1945-10-30 | Manning Maxwell & Moore Inc | Temperature compensated bourdon tube instrument |
| GB1097691A (en) * | 1963-04-26 | 1968-01-03 | K D G Instr Ltd | Improvements in or relating to temperature responsive devices |
| CN201497584U (en) * | 2009-07-17 | 2010-06-02 | 杭州科宏仪器仪表有限公司 | Sectional compensating device of temperature indicator |
| CN201535698U (en) * | 2009-07-17 | 2010-07-28 | 杭州科宏仪器仪表有限公司 | Segmented compensation arrangement of temperature indicator |
| CN201561811U (en) * | 2009-07-17 | 2010-08-25 | 杭州科宏仪器仪表有限公司 | Segmental compensation device of a temperature indicating gauge |
| CN202101775U (en) * | 2011-04-08 | 2012-01-04 | 杭州科宏仪器仪表有限公司 | Temperature indicator segmented compensation device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102622008A (en) * | 2012-03-28 | 2012-08-01 | 大连众和光电科技有限公司 | Double-wire compensation type temperature controller for transformer |
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| Publication number | Publication date |
|---|---|
| CN101608952B (en) | 2013-10-02 |
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| C14 | Grant of patent or utility model | ||
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| CB03 | Change of inventor or designer information |
Inventor after: Cai Zhiwen Inventor after: Sun Bing Inventor after: Yu Haizhen Inventor before: Yu Haizhen Inventor before: Sun Bing |