CN113358079A - Linear displacement sensor functionality testing device - Google Patents
Linear displacement sensor functionality testing device Download PDFInfo
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- CN113358079A CN113358079A CN202110601702.5A CN202110601702A CN113358079A CN 113358079 A CN113358079 A CN 113358079A CN 202110601702 A CN202110601702 A CN 202110601702A CN 113358079 A CN113358079 A CN 113358079A
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- adjusting
- rod
- push rod
- shell
- subassembly
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
Abstract
The invention discloses a functional testing device of a linear displacement sensor, which comprises an adjusting component, an outer shell, a moving component, an external fixing component and an external wiring component, wherein the adjusting component is positioned inside the outer shell and is connected with the inside of the outer shell, the moving component penetrates through the side surface of the outer shell and is connected with the moving component, the external fixing component is connected with the outer shell, and the external wiring component is connected with the outer shell. The adjusting assembly is used for adjusting the expansion or contraction of the device caused by thermal expansion and cold contraction, the outer shell is used for protecting the internal components of the device, the moving assembly is used for measuring, the external fixing assembly is used for fixing the device, the external wiring assembly is used for processing data and transmitting the data, the adjusting assembly comprises an adjusting ring, an adjusting bulge and an adjusting rod body, the adjusting rod body comprises a rod shell, a rod spring, a first push rod, a second push rod and a throttle valve, and the device has very high practical usability and can be widely applied to practical production.
Description
Technical Field
The invention relates to the technical field of sensors, in particular to a device for testing the functionality of a linear displacement sensor.
Background
The linear displacement sensor, also called an electronic ruler, is often used in various directions requiring precise measurement, and has a function of converting a linear mechanical displacement into an electrical signal.
The linear displacement sensor includes two types, one is a pull rod type, and the other is a sliding type. The two forms of linear displacement sensors have the advantages that the linear displacement sensors can be adjusted and used according to different conditions.
With the continuous development of science and technology, the requirements of people on the linear displacement sensor are higher and higher, so that the accuracy of the device can be influenced by slight changes, the expansion and contraction with heat are phenomena occurring on all objects, the changes occurring on general objects are not problematic and can not be greatly influenced, but if the effects occur on the linear displacement sensor, errors can occur on the device, and especially under the condition that accurate data needs to be obtained.
Disclosure of Invention
The present invention is directed to a functional testing device for a linear displacement sensor, so as to solve the problems in the background art.
In order to solve the technical problems, the invention provides the following technical scheme: the utility model provides a linear displacement sensor functional test device includes adjustment subassembly, shell body, removal subassembly, external fixation subassembly, outside wiring subassembly, and inside the adjustment subassembly was located the shell body, the adjustment subassembly was connected with the shell body is inside, moves the subassembly and runs through the shell body side surface, and the adjustment subassembly is connected with the removal subassembly, and the external fixation subassembly is connected with the shell body, and outside wiring subassembly is connected with the shell body. The adjusting component is used for adjusting the expansion or contraction of the device caused by thermal expansion and cold contraction, the outer shell is used for protecting the internal components of the device, the moving component is used for measuring, the external fixing component is used for fixing the device, and the external wiring component is used for processing data and transmitting data. When the temperature becomes hot or cold, the moving components of the device expand or contract due to the effect of expansion with heat and contraction with cold, and the measurement accuracy changes due to the expansion or contraction, thereby causing measurement errors. The device is designed according to the above conditions, when the temperature becomes hot, the adjusting component can rotate due to the change of the temperature and then drive the moving component to rotate, the moving component is shortened after rotating to offset the thermal expansion effect, and the adjusting component can rotate in the opposite direction when the temperature becomes cold, so that the length of the edge of the moving component after rotating is long, and the cold contraction effect is offset. However, because the thermal expansion coefficient of air is different from that of the used material, the adjusting component of the device simulates the thermal expansion coefficient and curve of the used material of the device through forces with different magnitudes in different directions, so that the device can change at any time according to the change of temperature, and errors caused by expansion with heat and contraction with cold cannot occur.
Furthermore, the adjusting assembly comprises an adjusting ring, an adjusting protrusion and an adjusting rod body, the adjusting protrusion is fixedly connected with the side surface of the adjusting ring, the adjusting rod body is connected with the adjusting protrusion, one side of the adjusting rod body, far away from the adjusting protrusion, is connected with the inner surface of the outer shell, and the adjusting ring is connected with the moving assembly. The adjusting ring, the adjusting protrusion and the adjusting rod body are matched, after the temperature changes, the adjusting rod body can expand or contract along with the temperature changing or changing, the adjusting rod body is connected with the adjusting protrusion, so that the adjusting protrusion is driven to rotate, and the adjusting protrusion is fixedly connected with the side surface of the adjusting ring, so that the adjusting ring is continuously driven to rotate. Because the adjusting ring is connected with the moving component, the rotating of the adjusting ring can drive the moving component to rotate.
Further, the adjustment barred body includes the excellent casing, the excellent spring, first push rod, the second push rod, the air valve, first push rod cover is inside the second push rod, second push rod one end and excellent casing hinged joint are kept away from to first push rod, first push rod side surface is kept away from with excellent casing to excellent spring one end is connected, the excellent spring is kept away from excellent casing one end and is kept away from the side surface of first push rod with the second push rod and be connected, the air valve setting is kept away from first push rod side surface at excellent casing, the protruding hinged joint of second push rod and adjustment, excellent casing is connected with the shell body. The motion principle of the adjusting rod body is that when the temperature becomes high, air inside the shell becomes hot, so expansion can be generated, the first push rod is pushed, the second push rod moves oppositely, the second push rod is connected with the adjusting protrusion, so that the adjusting ring is pushed to rotate, when the temperature becomes low, air inside the shell shrinks due to cooling, the first push rod and the second push rod can be folded, the second push rod is connected with the adjusting protrusion, so that the ring can be pulled back, the ring rotates, and the adjusting ring is connected with the moving assembly, so that the moving assembly can be driven to rotate by rotation of the adjusting ring.
Further, the movable assembly comprises a movable rod and a movable base, the movable rod is in threaded connection with the movable base, the movable rod penetrates through the outer shell, the movable rod is fixedly connected with the adjusting ring, the movable base is located inside the outer shell, and the movable base is in contact with the outer shell. Because the movable rod is fixedly connected with the adjusting ring, when the adjusting ring rotates, the movable rod can also rotate, and because the movable rod is in threaded connection with the movable base, the movable rod can move inwards or outwards. In this case, if a plurality of adjusting rods are arranged, some pushing devices can be rotated, and other pushing devices can counteract the rotation of the devices, and through the simulation, the contraction or extension condition of the devices can be completely and basically the same as the expansion amount, so that the error caused by expansion and contraction caused by heat can be basically overcome.
Further, the external fixing component is four iron plates with threaded holes. The iron plate is used for fixing the device at a place needing to be fixed, and as the device is generally used in a specific scene, holes needed by the device are reserved at the place where the device is generally needed to be installed for installation.
Furthermore, the external wiring subassembly includes converter, external connection, and the external connection is connected with the converter, converter and shell body fixed connection. The converter carries out partial processing with data, and on the external connection conveyed data to outside display screen, we can be more convenient observation measured numerical value, also convenient reading numerical value when correcting the error, compare with exact numerical value, and then the decision aerifys to which adjustment barred body 13 of device inside, lets the device be in balanced state all the time.
More than four adjusting rod bodies are arranged. Because the material of the moving rod is mostly made of carbon steel, the thermal expansion coefficient of the material is different from that of air, so that the change of the device which can be driven by the heating or cooling of the air is different from that of the carbon steel material, a plurality of adjusting rods are needed, and the air in the device is adjusted through the valve, so that the air has certain force superposition and certain force enhancement to fit the thermal expansion coefficient of the carbon steel material.
Compared with the prior art, the invention has the following beneficial effects: firstly, this device adjustment subassembly includes the adjustment ring, the adjustment arch, the adjustment barred body, wherein the adjustment barred body includes the stick casing, the stick spring, first push rod, the second push rod, the air valve, can make the device adjust under the condition of expend with heat and contract with cold, secondly, the adjustment barred body sets up more than four, can be through the air in the air valve adjusting device behind it, make it some power coincidence, some power reinforcing, in order to laminate the coefficient of thermal expansion of carbon steel material, if the device material changes, also can continue to change gas density and adapt, it includes converter, the external connection line to have set up outside wiring subassembly at last, can be to external output device measuring result.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is an external view of a linear displacement transducer functionality testing device;
FIG. 2 is a schematic structural diagram of a device for testing the functionality of a linear displacement sensor;
FIG. 3 is a schematic view of the structure of the adjustment rod;
FIG. 4 is an external view of the adjustment rod;
FIG. 5 is a schematic structural view of an adjustment assembly;
FIG. 6 is a view of the adjustment protrusion and the adjustment ring;
FIG. 7 is a mating view of the travel bar and the travel base;
in the figure: 1-adjusting the assembly; 2-an outer shell; 3-a moving assembly; 4-an external fixation assembly; 5-an external wiring assembly; 11-adjusting the circular ring; 12-adjusting the projection; 13-adjusting the rod body; 31-a moving rod; 32-moving the base; a 51-converter; 52-external connection; 131-a rod housing; 132-a rod spring; 133-a first push rod; 134-a second push rod; 135-a gate valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides the following technical solutions:
according to fig. 1-7, a functional testing device for a linear displacement sensor comprises an adjusting component 1, an outer shell 2, a moving component 3, an external fixing component 4 and an external wiring component 5, wherein the adjusting component 1 is located inside the outer shell 2, the adjusting component 1 is connected with the inside of the outer shell 2, the moving component 3 penetrates through the side surface of the outer shell 2, the adjusting component 1 is connected with the moving component 3, the external fixing component 4 is connected with the outer shell 2, and the external wiring component 5 is connected with the outer shell 2. The adjusting assembly 1 is used for adjusting the expansion or contraction of the device caused by thermal expansion and cold contraction, the outer shell 2 is used for protecting the internal components of the device, the moving assembly 3 is used for measuring, the external fixing assembly 4 is used for fixing the device, and the external wiring assembly 5 is used for processing data and transmitting data. When the temperature becomes hot or cold, the moving assembly 3 of the device expands or contracts due to the effect of expansion and contraction, and the measurement precision changes due to the expansion or contraction, thereby causing measurement errors. The device is designed according to the above conditions, when the temperature becomes hot, the adjusting component 1 can rotate due to the change of the temperature and then drive the moving component 3 to rotate, the moving component 3 shortens after rotating to offset the thermal expansion effect, and when the temperature becomes cold, the adjusting component 1 can rotate towards the opposite direction, so that the length of the rear side of the moving component 3 is rotated to offset the cold contraction effect. However, because the thermal expansion coefficient of air is different from that of the used material, the adjusting component 1 of the device simulates the thermal expansion coefficient and curve of the used material of the device through forces with different magnitudes in different directions, so that the device can change at any time according to the change of temperature, and errors caused by expansion with heat and contraction with cold cannot occur.
According to fig. 1-7, the adjusting assembly 1 comprises an adjusting ring 11, an adjusting protrusion 12, and an adjusting rod 13, wherein the adjusting protrusion 12 is fixedly connected to a side surface of the adjusting ring 11, the adjusting rod 13 is connected to the adjusting protrusion 12, a side of the adjusting rod 13 away from the adjusting protrusion 12 is connected to an inner surface of the outer housing 2, and the adjusting ring 11 is connected to the moving assembly 3. The adjusting ring 11, the adjusting protrusion 12 and the adjusting rod 13 are matched, when the temperature changes, the adjusting rod 13 expands or contracts with the temperature increasing or decreasing, the adjusting protrusion 12 is driven to rotate due to the connection of the adjusting rod 13 and the adjusting protrusion 12, and the adjusting protrusion 12 is fixedly connected with the side surface of the adjusting ring 11, so that the adjusting ring 11 is continuously driven to rotate. Since the adjusting ring 11 is connected to the moving component 3, the moving component 3 is rotated by the rotation of the adjusting ring 11.
According to fig. 1-7, the adjusting rod 13 includes a rod housing 131, a rod spring 132, a first push rod 133, a second push rod 134, and a valve 135, wherein the first push rod 133 is sleeved inside the second push rod 134, an end of the first push rod 133 away from the second push rod 134 is hinged to the rod housing 131, an end of the rod spring 132 is connected to a side surface of the rod housing 131 away from the first push rod 133, an end of the rod spring 132 away from the rod housing 131 is connected to a side surface of the second push rod 134 away from the first push rod 133, the valve 135 is disposed on a side surface of the rod housing 131 away from the first push rod 133, the second push rod 134 is hinged to the adjusting protrusion 12, and the rod housing 131 is connected to the outer housing 2. The motion principle of the adjusting rod 13 is that when the temperature is high, the air inside the housing 131 is heated and expanded, so that the first push rod 133 and the second push rod 134 are pushed to move oppositely, because the second push rod 134 is connected with the adjusting protrusion 12, the adjusting ring 11 is pushed to rotate, when the temperature is low, the air inside the housing 131 is contracted because of cooling, at this time, the first push rod 133 and the second push rod 134 are folded, because the second push rod 134 is connected with the adjusting protrusion 12, the ring 11 is pulled back, so that the ring 11 rotates, and because the adjusting ring 11 is connected with the moving assembly 3, the moving assembly 3 is driven to rotate by the rotation of the adjusting ring 11.
According to fig. 1-7, the moving assembly 3 includes a moving rod 31 and a moving base 32, the moving rod 31 is connected with the moving base 32 by screw threads, the moving rod 31 penetrates through the outer casing 2, the moving rod 31 is fixedly connected with the adjusting ring 11, the moving base 32 is located inside the outer casing 2, and the moving base 32 is in contact with the outer casing 2. Since the moving rod 31 is fixedly connected with the adjusting ring 11, when the adjusting ring 11 rotates, the moving rod 31 also rotates, and since the moving rod 31 is in threaded connection with the moving base 32, the moving rod 31 moves inwards or outwards, when the temperature rises, the moving rod 31 is driven to contract inwards to counteract the thermal barrier effect through the rotation of the ring 11, and when the temperature is lower, the moving rod 31 is driven to expand outwards to counteract the cold contraction effect through the rotation of the ring 11. In this case, if a plurality of adjusting rods 13 are provided, some of the pushing devices can be rotated, and others can counteract the rotation of the devices, and through the simulation, the contraction or extension of the devices can be completely and basically the same as the expansion, so that the error caused by thermal expansion and cold contraction can be basically overcome.
According to fig. 1-7, the external fixation assembly 4 is four iron plates with threaded holes. The iron plate is used for fixing the device at a place needing to be fixed, and as the device is generally used in a specific scene, holes needed by the device are reserved at the place where the device is generally needed to be installed for installation.
According to fig. 1 to 7, the external connection module 5 comprises a switch 51 and an external connection 52, the external connection 52 is connected to the switch 51, and the switch 51 is fixedly connected to the outer housing 2. Converter 51 carries out partial processing with data, and on external connection 52 conveyed data transfer external display screen, we can be more convenient observation measured numerical value, also conveniently read numerical value when correcting the error, compare with correct numerical value, and then decide which adjustment barred body 13 of device inside aerifys, let the device be in balanced state all the time.
As shown in fig. 1 to 7, the number of the adjustment rods 13 is four or more. Since the material of the moving rod 31 is mostly carbon steel, the thermal expansion coefficient of the material is not consistent with that of air, so that the change of the device which can be driven by the air heating or cooling is not consistent with that of the carbon steel material, several adjusting rods 13 are needed, the air in the device is adjusted through the subsequent air valve 135, so that the force is overlapped and enhanced, and the air density can be continuously changed to fit the thermal expansion coefficient of the carbon steel material, as above, if the material of the device is changed, so as to adapt to the device.
The working principle of the invention is as follows: when the temperature is high, the air in the housing 131 is heated and expanded, so that the first push rod 133 and the second push rod 134 are pushed to move oppositely, the second push rod 134 is connected with the adjusting protrusion 12, so that the adjusting ring 11 is pushed to rotate, when the temperature is low, the air in the housing 131 is contracted due to cooling, so that the first push rod 133 and the second push rod 134 are folded, because the second push rod 134 is connected with the adjusting protrusion 12, the ring 11 is pulled back, so that the ring 11 is rotated, so that the adjusting protrusion 12 is driven to rotate, the adjusting ring 11 is continuously driven to rotate, because the moving rod 31 is fixedly connected with the adjusting ring 11, when the adjusting ring 11 is rotated, the moving rod 31 is also rotated, because the moving rod 31 is in threaded connection with the moving base 32, so that the moving rod 31 moves inwards or outwards, when the temperature rises, the moving rod 31 is driven to contract inwards through the rotation of the circular ring 11 to counteract the thermal barrier effect, when the temperature is lower, the moving rod 31 is driven to expand outwards through the rotation of the circular ring 11 to counteract the cold contraction effect, the material of the moving rod 31 is mostly made of carbon steel, so that the thermal expansion coefficient of the material is inconsistent with that of air, the change of the device which can be driven by the heating or cooling of the air is inconsistent with that of the carbon steel, so that a plurality of adjusting rod bodies 13 are needed, the air in the device is adjusted through a subsequent air valve 135, so that a plurality of forces are superposed and a plurality of forces are enhanced to be matched with the thermal expansion coefficient of the carbon steel, and the gas density can be continuously changed to adapt if the material of the device changes.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a linear displacement sensor functional test device which characterized in that: the utility model provides a functional testing arrangement of linear displacement sensor includes adjustment subassembly (1), shell body (2), removes subassembly (3), outside fixed subassembly (4), outside wiring subassembly (5), adjustment subassembly (1) is located inside shell body (2), adjustment subassembly (1) is connected with shell body (2) are inside, it runs through shell body (2) side surface to remove subassembly (3), adjustment subassembly (1) is connected with removal subassembly (3), outside fixed subassembly (4) are connected with shell body (2), outside wiring subassembly (5) are connected with shell body (2).
2. The linear displacement sensor functionality testing device of claim 1, wherein: the adjusting assembly (1) comprises an adjusting ring (11), an adjusting bulge (12) and an adjusting rod body (13), the adjusting bulge (12) is fixedly connected with the side surface of the adjusting ring (11), the adjusting rod body (13) is connected with the adjusting bulge (12), one side of the adjusting bulge (12) which is far away from the adjusting rod body (13) is connected with the inner surface of the outer shell (2), and the adjusting ring (11) is connected with the moving assembly (3).
3. The linear displacement sensor functionality testing device of claim 2, wherein: the adjusting rod body (13) comprises a rod shell (131), a rod spring (132), a first push rod (133), a second push rod (134) and a valve (135), the first push rod (133) is sleeved inside the second push rod (134), one end, away from the second push rod (134), of the first push rod (133) is hinged to the rod shell (131), one end of the rod spring (132) is connected with the side surface, away from the first push rod (133), of the rod shell (131), one end, away from the rod shell (131), of the rod spring is connected with the side surface, away from the first push rod (133), of the second push rod (134), the valve (135) is arranged on the side surface, away from the first push rod (133), of the rod shell (131), the second push rod (134) is hinged to an adjusting boss (12), and the rod shell (131) is connected to the outer shell (2).
4. The linear displacement sensor functionality testing device of claim 1, wherein: remove subassembly (3) including carriage release lever (31), removal base (32), carriage release lever (31) and removal base (32) threaded connection, outer shell (2) are run through in carriage release lever (31), carriage release lever (31) and adjustment ring (11) fixed connection, it is inside that removal base (32) are located outer shell (2), it contacts with outer shell (2) to remove base (32).
5. The linear displacement sensor functionality testing device of claim 1, wherein: the external fixing component (4) is four iron plates with threaded holes.
6. The linear displacement sensor functionality testing device of claim 1, wherein: the external wiring assembly (5) comprises a converter (51) and an external wiring (52), the external wiring (52) is connected with the converter (51), and the converter (51) is fixedly connected with the outer shell (2).
7. The linear displacement sensor functionality testing device of claim 1, wherein: the number of the adjusting rod bodies (13) is more than four.
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| CN202110601702.5A CN113358079B (en) | 2021-05-31 | 2021-05-31 | Linear displacement sensor functionality testing device |
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| CN202110601702.5A CN113358079B (en) | 2021-05-31 | 2021-05-31 | Linear displacement sensor functionality testing device |
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| CN113358079B CN113358079B (en) | 2023-04-11 |
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| CN205192422U (en) * | 2015-12-09 | 2016-04-27 | 深圳市贝斯特宁科技有限公司 | Linear displacement sensor |
| JP2018077193A (en) * | 2016-11-11 | 2018-05-17 | シチズンファインデバイス株式会社 | Length measuring instrument, and length measuring system |
| CN211576074U (en) * | 2020-03-11 | 2020-09-25 | 中国水利水电第八工程局有限公司 | Linear displacement sensor |
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2021
- 2021-05-31 CN CN202110601702.5A patent/CN113358079B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4206437A (en) * | 1978-10-02 | 1980-06-03 | The Bendix Corporation | Transducer with compensation features |
| US4549354A (en) * | 1983-05-03 | 1985-10-29 | Dr. Johannes Heidenhain Gmbh | Measuring system |
| US4554741A (en) * | 1983-05-03 | 1985-11-26 | Dr. Johannes Heidenhain Gmbh | Measuring system |
| US4505158A (en) * | 1983-06-29 | 1985-03-19 | Acer Automation Company | Thermal compensating gage |
| US4831737A (en) * | 1986-08-13 | 1989-05-23 | Maho Aktiengesellschaft | Apparatus for compensating for the thermal expansion of two relatively movable machine parts |
| CN102077059A (en) * | 2008-07-11 | 2011-05-25 | 马波斯S.P.A.公司 | Method for thermally compensating gaging device and thermally compensated gaging station |
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| CN211576074U (en) * | 2020-03-11 | 2020-09-25 | 中国水利水电第八工程局有限公司 | Linear displacement sensor |
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| CN113358079B (en) | 2023-04-11 |
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