CN105424206A - Electromechanical integrated temperature instrument with function of adaptive environment temperature change - Google Patents
Electromechanical integrated temperature instrument with function of adaptive environment temperature change Download PDFInfo
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- CN105424206A CN105424206A CN201510815942.XA CN201510815942A CN105424206A CN 105424206 A CN105424206 A CN 105424206A CN 201510815942 A CN201510815942 A CN 201510815942A CN 105424206 A CN105424206 A CN 105424206A
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- compensation
- instrument
- connecting rod
- movement
- spring pipe
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/20—Compensating for effects of temperature changes other than those to be measured, e.g. changes in ambient temperature
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- General Physics & Mathematics (AREA)
- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The invention relates to an electromechanical integrated temperature instrument with the function of an adaptive environment temperature change. The electromechanical integrated temperature instrument comprises an instrument case; and an installation core, a dial plate, and a main spring ring are installed in the instrument case. Besides, the instrument also includes a temperature compensation device for sensing an environment temperature and driving the core to make rotation reversely. The temperature compensation device consists of a compensation capillary tube, a compensation spring coil, a second connecting rod and a compensation mechanism; the compensation capillary tube and a main relation pipe have identical lengths and sizes; the compensation spring coil and the main spring ring have the same size; the compensation spring coil is arranged right below the main spring ring; the compensation capillary tube is connected with one end of the compensation spring coil and the other end of the compensation spring coil is hinged with the second connecting rod; the second connecting rod is connected with one end of the compensation mechanism; and the other end of the compensation mechanism is linked with the core reversely. With the instrument, the influence on the environment temperature change is effectively eliminated; the precision is high; and the dynamic performance is good.
Description
Technical field
The present invention relates to thermometric instrument, especially a kind of electromechanical integration thermometric instrument.
Background technology
Fluid pressure formula thermometer is widely used in the machinery industries such as steam turbine, generator, fan blower, compressor, is widely used in electronics, electric power, chemical industry, oil, metallurgy, shipbuilding industry simultaneously.Along with the occasion of practical application constantly increases, thermometric environment is further severe, there has been higher requirement in market to the reliability of pressure type thermometric instrument and operation terseness, and thus good stability, mechanical type thermometric instrument that antijamming capability is strong become the main temperature measuring device under the more occasion of undesired signal.And pressure type thermometric instrument common is in actual applications subject to environment temperature impact when remote temperature measurement makes gauge internal generation extra pressure cause measuring error, therefore, for the error research of mechanical type thermometric instrument be the important process realizing accurate temperature measurement under rugged surroundings.
The temperature-measuring range of pressure type thermometric instrument is-80 ~ 600 DEG C.Conventional pressure formula thermometric instrument feature performance benefit has: (1) structure is simple, cheap; (2) physical strength is high, good anti-vibration and do not need extra power; (3) its convenient reading clear signal can teletransmission.Defect has: (1) measuring accuracy is subject to the impact of variation of ambient temperature, and precision is relatively low; (2) thermal inertia is comparatively large, and dynamic property is poor, indicating value delayed comparatively large, not easily measures vertiginous temperature.
Summary of the invention
In order to overcome the impact being easily subject to variation of ambient temperature of existing pressure type thermometric instrument, precision is lower, dynamic property is poor deficiency, the invention provides and a kind ofly effectively avoid that the impact of variation of ambient temperature, precision are higher, the electromechanical integration thermometric instrument of the good adaptive environment temperature variation of dynamic property.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of electromechanical integration thermometric instrument of adaptive environment temperature variation, comprise meter housing, installing machine core in described meter housing, dial plate and main spring pipe, described pointer is fixedly mounted on movement, the temperature scale line of described dial plate is pointed in the end of described pointer, described main spring pipe one end is connected with external main kapillary, described main kapillary is connected with thermometer bulb, the other end and first connecting rod one end of described main spring pipe are hinged, the other end of described first connecting rod is connected with one end of temperature measuring mechanism, the middle part of described temperature measuring mechanism is arranged on rotating fulcrum, the other end and the described movement positive dirction of described temperature measuring mechanism link, described instrument also comprises for sense ambient temperature and drives the temperature compensation means of movement counter-rotation, described temperature compensation means comprises compensation kapillary, counterbalance spring pipe, second connecting rod and compensation mechanism, described compensation kapillary is all equal with size with the length of described primary relation pipe, described counterbalance spring pipe and main spring pipe in the same size, described counterbalance spring pipe is positioned at immediately below described main spring pipe, described compensation kapillary is connected with one end of described counterbalance spring, the other end and the second connecting rod of described counterbalance spring pipe are hinged, described second connecting rod is connected with one end of described compensation mechanism, and the other end of described compensation mechanism and movement link in the other direction.
Further, one end of described temperature measuring mechanism is provided with the first kidney slot, the other end of described first connecting rod is provided with the first pin, described first guide is contained in described first kidney slot, the other end of described temperature measuring mechanism is tooth-shape structure, fixed cover cogged on described movement, described tooth-shape structure and described gears meshing.
Further again, described movement installs pivot arm, and one end of described pivot arm is provided with connecting lever, and described connecting lever is provided with described rotating fulcrum.
One end of described compensation mechanism is provided with the second kidney slot, and the other end of described second connecting rod is provided with the second pin, and described second guide is contained in described second kidney slot, and the other end of described compensation mechanism is fixed on described movement.
Described instrument also comprises hairspring, and the inner of described hairspring is fixed on movement, and the outer end of described hairspring is fixed on the other end of described pivot arm.
Described instrument also comprises aviation plug, and described thermal resistance is connected with described aviation plug by wire.
Described instrument also comprises fixed arm, and described movement is sleeved on fixed arm rotationally, and fixed arm is fixed on described meter housing bottom surface.
Described counterbalance spring pipe and main spring Guan Juncheng 3/4 circular arc.
Technical conceive of the present invention is: temperature variation makes temperature sensing medium generation producing pressure by using temperature caused expansion and contraction change in thermometer bulb, be delivered in bourdon tube by kapillary, tube wall bears by measuring pressure, and bourdon tube deforms generation displacement, thus drives temperature measurement structure to rotate by connecting rod.Variation of ambient temperature causes temperature sensing medium pressure change in kapillary, then be delivered to bourdon tube to make it produce displacement to be rotated by connecting rod driven rotary arm again, and temperature measuring mechanism is securing with pivot arm, thus drive pointer oppositely to deflect, thus reach the effect of Contrary compensation.
Beneficial effect of the present invention is mainly manifested in: 1, reduce environment temperature to the impact of measuring, improve measuring accuracy; 2, dynamic property is good, indicating value delayed less, easily measures vertiginous temperature.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the electromechanical integration thermometric instrument of adaptive environment temperature variation.
Fig. 2 is the sectional view of meter housing.
Fig. 3 is the connection diagram of temperature measuring mechanism, and wherein, (a) is vertical view, and (b) is front elevation.
Fig. 4 is the connection diagram of compensation mechanism, and wherein, (a) is vertical view, and (b) is front elevation.
Fig. 5 is the schematic diagram of pivot arm, and wherein, (a) is vertical view, and (b) is front elevation.
Fig. 6 is the schematic diagram of temperature measuring mechanism, and wherein, (a) is vertical view, and (b) is front elevation.
Fig. 7 is the schematic diagram of compensation mechanism, and wherein, (a) is vertical view, and (b) is front elevation.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
With reference to Fig. 1 ~ Fig. 7, a kind of electromechanical integration thermometric instrument of adaptive environment temperature variation, comprise meter housing 3, installing machine core 13 in described meter housing 3, dial plate 2 and main spring pipe 1, described pointer is fixedly mounted on movement 13, the temperature scale line of described dial plate 2 is pointed in the end of described pointer, described main spring pipe 1 one end is connected with external main kapillary, described main kapillary is connected with thermometer bulb 11, the other end and first connecting rod 6 one end of described main spring pipe 1 are hinged, the other end of described first connecting rod 6 is connected with one end of temperature measuring mechanism 7, the middle part of described temperature measuring mechanism 7 is arranged on rotating fulcrum, the other end and described movement 13 positive dirction of described temperature measuring mechanism 7 link, described instrument also comprises for sense ambient temperature and drives the temperature compensation means of movement counter-rotation, described temperature compensation means comprises compensation kapillary, counterbalance spring pipe 9, second connecting rod 16 and compensation mechanism 8, described compensation kapillary is all equal with size with the length of described main kapillary, described counterbalance spring pipe 9 is in the same size with main spring pipe 1, described counterbalance spring 9 circle is positioned at immediately below described main spring pipe 1, described compensation kapillary is connected with one end of described counterbalance spring 9, the other end and the second connecting rod 16 of described counterbalance spring pipe 9 are hinged, described second connecting rod 16 is connected with one end of described compensation mechanism 8, and the other end of described compensation mechanism 8 and movement 13 link in the other direction.
Further, one end of described temperature measuring mechanism 7 is provided with the first kidney slot, the other end of described first connecting rod 6 is provided with the first pin, described first guide is contained in described first kidney slot, the other end of described temperature measuring mechanism 7 is tooth-shape structure, fixed cover cogged 17 on described movement 13, described tooth-shape structure and described gears meshing.
Further again, described movement 13 installs pivot arm 5, and one end of described pivot arm 5 is provided with connecting lever, and described connecting lever is provided with described rotating fulcrum.
One end of described compensation mechanism 8 is provided with the second kidney slot, and the other end of described second connecting rod 16 is provided with the second pin, and described second guide is contained in described second kidney slot, and the other end of described compensation mechanism 8 is fixed on described movement 13.
Described instrument also comprises hairspring 15, and the inner of described hairspring 15 is fixed on movement 13, and the outer end of described hairspring is fixed on the other end of described pivot arm 5.
Described instrument also comprises aviation plug 10, and described thermal resistance 12 is connected with described aviation plug 10 by wire.
Described instrument also comprises fixed arm 4, and described movement 13 is sleeved on fixed arm 4 rotationally, and fixed arm 4 is fixed on the bottom surface of described meter housing 3.
Described counterbalance spring pipe and main spring Guan Juncheng 3/4 circular arc.
In the present embodiment, described temperature measuring mechanism 7 is positioned in the middle of pivot arm 5, the symmetrical structure of pivot arm 5 for being bolted, the scallop of temperature measuring mechanism 7 is divided into tooth-shape structure, and temperature measurement structure 7 is connected with pivot arm 5 by axle, is meshed with the set gear 17 on movement 13, during thermometric, in thermometer bulb 11 and kapillary, pressure changes, drive the rotation of main spring pipe 1 free end travel, drive temperature measuring mechanism 7 to rotate by first connecting rod 6, realize movement 13 and rotate.
Described compensation mechanism 8 is the structure similar to temperature measuring mechanism 7, do not have thermometer bulb 11 etc. in long capillary pressure change and cause the change of counterbalance spring pipe 9 free end travel, drive compensation mechanism 8 oppositely to deflect by second connecting rod 16 thus drive rotating backward of movement 13 to realize compensating.
Described pivot arm 5, compensation mechanism 8, movement 13 are positioned in the middle of fixed arm 4, fixed arm 4 is bolted symmetrical structure, pivot arm 5, compensation mechanism 8 are positioned on movement 13, rotate together, separated by back-up ring 14, movement 13 is connected with fixed arm 4, and fixed arm 4 is fixed on meter housing 3.
Described hairspring 15 is positioned at immediately below set gear 17, thus when the temperature is changed, realizes reacting rapidly.
Described aviation plug 10 is positioned at the side of protective sleeve, and thermal resistance 12 is connected with aviation plug 10 by wire, to realize long-distance transmissions, as secondary instrument display dut temperature.
The course of work of the present embodiment is: when probe is put into testee, temperature sensing medium in thermometer bulb changes because of the pressure that expands with heat and contract with cold, be delivered in main spring pipe by main kapillary, tube wall bears by measuring pressure, main spring pipe deforms, and main spring pipe free end produces displacement, thus first connecting rod hinged with it drives temperature measuring mechanism to rotate, by being meshed with set gear, movement is driven to rotate; Environment temperature causes temperature sensing medium pressure in compensation kapillary to change simultaneously, then be delivered in counterbalance spring pipe, tube wall bears by measuring pressure, counterbalance spring pipe deforms, counterbalance spring pipe free end produces displacement, thus hinged with it second connecting rod drive compensation mechanism oppositely to deflect thus drives movement 13 rotate backward realize compensation.Due to testee temperature variation, the self-resistance of thermal resistance changes, and shows dut temperature by being connected with aviation plug as secondary instrument.
Claims (8)
1. the electromechanical integration thermometric instrument of an adaptive environment temperature variation, comprise meter housing, installing machine core in described meter housing, dial plate and main spring pipe, described pointer is fixedly mounted on movement, the temperature scale line of described dial plate is pointed in the end of described pointer, described main spring pipe one end is connected with external main kapillary, described main kapillary is connected with thermometer bulb, the other end and first connecting rod one end of described main spring pipe are hinged, the other end of described first connecting rod is connected with one end of temperature measuring mechanism, the middle part of described temperature measuring mechanism is arranged on rotating fulcrum, the other end and the described movement positive dirction of described temperature measuring mechanism link, it is characterized in that: described instrument also comprises for sense ambient temperature and drives the temperature compensation means of movement counter-rotation, described temperature compensation means comprises compensation kapillary, counterbalance spring pipe, second connecting rod and compensation mechanism, described compensation kapillary is all equal with size with the length of described primary relation pipe, described counterbalance spring pipe and main spring pipe in the same size, described counterbalance spring pipe is positioned at immediately below described main spring pipe, described compensation kapillary is connected with one end of described counterbalance spring, the other end and the second connecting rod of described counterbalance spring pipe are hinged, described second connecting rod is connected with one end of described compensation mechanism, and the other end of described compensation mechanism and movement link in the other direction.
2. the electromechanical integration thermometric instrument of adaptive environment temperature variation as claimed in claim 1, it is characterized in that: one end of described temperature measuring mechanism is provided with the first kidney slot, the other end of described first connecting rod is provided with the first pin, described first guide is contained in described first kidney slot, the other end of described temperature measuring mechanism is tooth-shape structure, fixed cover cogged on described movement, described tooth-shape structure and described gears meshing.
3. the electromechanical integration thermometric instrument of adaptive environment temperature variation as claimed in claim 1 or 2, it is characterized in that: described movement installs pivot arm, one end of described pivot arm is provided with connecting lever, and described connecting lever is provided with described rotating fulcrum.
4. the electromechanical integration thermometric instrument of adaptive environment temperature variation as claimed in claim 2, it is characterized in that: one end of described compensation mechanism is provided with the second kidney slot, the other end of described second connecting rod is provided with the second pin, described second guide is contained in described second kidney slot, and the other end of described compensation mechanism is fixed on described movement.
5. the electromechanical integration thermometric instrument of adaptive environment temperature variation as claimed in claim 3, it is characterized in that: described instrument also comprises hairspring, the inner of described hairspring is fixed on movement, and the outer end of described hairspring is fixed on the other end of described pivot arm.
6. the electromechanical integration thermometric instrument of adaptive environment temperature variation as claimed in claim 1 or 2, it is characterized in that: described instrument also comprises aviation plug, described thermal resistance is connected with described aviation plug by wire.
7. the electromechanical integration thermometric instrument of adaptive environment temperature variation as claimed in claim 1 or 2, it is characterized in that: described instrument also comprises fixed arm, described movement is sleeved on fixed arm rotationally, and fixed arm is fixed on the bottom surface of described meter housing.
8. the electromechanical integration thermometric instrument of adaptive environment temperature variation as claimed in claim 1 or 2, is characterized in that: described counterbalance spring pipe and main spring Guan Juncheng 3/4 circular arc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510815942.XA CN105424206A (en) | 2015-11-23 | 2015-11-23 | Electromechanical integrated temperature instrument with function of adaptive environment temperature change |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510815942.XA CN105424206A (en) | 2015-11-23 | 2015-11-23 | Electromechanical integrated temperature instrument with function of adaptive environment temperature change |
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| CN105424206A true CN105424206A (en) | 2016-03-23 |
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| CN201510815942.XA Pending CN105424206A (en) | 2015-11-23 | 2015-11-23 | Electromechanical integrated temperature instrument with function of adaptive environment temperature change |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2161915Y (en) * | 1993-05-27 | 1994-04-13 | 浙江工学院科教仪器仪表厂 | Hydraulic thermometer with self-compensating function of ambient temp. change |
| CN2807225Y (en) * | 2005-05-24 | 2006-08-16 | 大连市金州仪器仪表厂 | Thermometer for transformer |
| 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 |
| US20110150027A1 (en) * | 2009-12-21 | 2011-06-23 | Weiss Instruments, Inc. | Mechanical and electronic temperature reading system with built-in failure and inaccuracy detection |
| CN203349946U (en) * | 2013-06-08 | 2013-12-18 | 南阳市华业防爆仪表有限公司 | Pressure type thermometer |
| CN205228659U (en) * | 2015-11-23 | 2016-05-11 | 浙江工业大学 | Self -adaptation changes in ambient temperature's mechatronic temperature instrument |
-
2015
- 2015-11-23 CN CN201510815942.XA patent/CN105424206A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2161915Y (en) * | 1993-05-27 | 1994-04-13 | 浙江工学院科教仪器仪表厂 | Hydraulic thermometer with self-compensating function of ambient temp. change |
| CN2807225Y (en) * | 2005-05-24 | 2006-08-16 | 大连市金州仪器仪表厂 | Thermometer for transformer |
| 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 |
| US20110150027A1 (en) * | 2009-12-21 | 2011-06-23 | Weiss Instruments, Inc. | Mechanical and electronic temperature reading system with built-in failure and inaccuracy detection |
| CN203349946U (en) * | 2013-06-08 | 2013-12-18 | 南阳市华业防爆仪表有限公司 | Pressure type thermometer |
| CN205228659U (en) * | 2015-11-23 | 2016-05-11 | 浙江工业大学 | Self -adaptation changes in ambient temperature's mechatronic temperature instrument |
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Application publication date: 20160323 |
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