CN204575026U - A kind of modified high precision conductive plastics angular displacement sensor - Google Patents
A kind of modified high precision conductive plastics angular displacement sensor Download PDFInfo
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- CN204575026U CN204575026U CN201520195314.1U CN201520195314U CN204575026U CN 204575026 U CN204575026 U CN 204575026U CN 201520195314 U CN201520195314 U CN 201520195314U CN 204575026 U CN204575026 U CN 204575026U
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- brush
- angular displacement
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- displacement sensor
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Abstract
The utility model relates to a kind of modified high precision conductive plastics angular displacement sensor, comprise rotating shaft, axle sleeve, the track substrate with film resistance, fixed point lead-out terminal, drive some output slide rail and brush assembly of electric, described brush assembly of electric comprises the first brush plate and the second brush plate, and described first brush plate is connected in aggregates with the second brush plate by reed; Also comprise neck bush, described neck bush is arranged between described brush assembly of electric and rotating shaft; Described first brush plate, the second brush plate respectively with resistance track, drive some output slide rails to contact.The structure of the utility model to former flow concentrating part simplifies, and such structure increases the contact area with film resistance on the one hand, reduces friction between the two, and then can reduce the moving noise of sensor; Structure also improves the reliability of product after simplifying simultaneously, and the miniaturization of structure of being more convenient for, also makes production technology simplify further, reduces production cost.
Description
Technical field
The utility model relates to a kind of modified high precision conductive plastics angular displacement sensor, be one and convert angle change the angular transducer of electric signal output to, be applicable to the acquisition of steering angle in the plant equipment that the various needs such as automobile, aircraft, steamer, crane, cannon, radar turn to, in the plant equipment such as transportation machinery, Petro-Chemical Machinery, building machinery, injection machine, need the occasion of carrying out angular metric measurement or control to be widely used.
Background technology
The principle of work of sensor is: flow concentrating part is by being contained in rotating shaft, axially fixed by collar, rotate together with rotating shaft, brush is pressed on the surface of film resistance, the two ends of film resistance output on binding post by the B alloy wire on output terminal, one end of afflux silk is connected with individual in binding post, the other end is pressed in the groove of collector ring, when such rotating shaft rotates, brush is just passed through in the angle position of brush, brush arm, afflux arm, collector ring and afflux silk are to binding post, three binding posts form three terminal potential device versions, so this angular displacement sensor is also potentiometric transducer, just the angular displacement of brush can be converted to voltage signal by constant pressure source or constant current source to export.
As shown in Figure 6, existing conductive plastics angular displacement sensor is made up of parts such as end cap 1 ', clip 2 ', insulation lining 3 ', binding post 4 ', B alloy wire 5 ', insulation base 6 ', film resistance 7 ', output terminal 8 ', brush 9 ', brush arm 10 ', afflux arm 11 ', rivet 12 ', collector ring 13 ', afflux silk 14 ', housing 15 ', collar 16 ' and rotating shafts 17 '.Wherein, flow concentrating part is made up of brush 9 ', brush arm 10 ', afflux arm 11 ', rivet 12 ' and collector ring 13 ' etc. again, and structure is more complicated, maximum to the performance impact of sensor.Insulation base is shaping through hot press moulding by ATP resin-oatmeal, and film resistance is formed through spraying or printing by resistance slurry, and be open circles circular orbit, brush slides in the above, through the outside output brush of output terminal angle position on the resistance track; Post assembly is made up of the insulation lining of DAP resin material and binding post.Binding post is contained in the hole of housing, is insulated and opens, be connected, outputted on binding post by signal between output terminal with binding post by B alloy wire by resin and housing.Other also has the parts such as afflux silk 14 ', rotating shaft 17 ', collar 16 ', housing 15 ', end cap 1 ', clip 12 ' and joint bolt, and concrete structure is shown in Fig. 6.
Existing conductive plastics angular displacement sensor structurally also exists flow concentrating part complex structure, the bifurcation structure very easily scratching film resistive surface of brush, add moving noise, between collector ring and rotating shaft, the on-insulated signal that causes is subject to external interference, carry out transition by B alloy wire between connection terminal with flow concentrating part to connect, belong to the dynamic contact of less stable, body seal is not high easily enters many deficiencies such as dust, and these structure problems cause the shortcomings such as the resistance precision of sensor is low, moving noise greatly, is easily disturbed.
Utility model content
The utility model will solve the problems of the technologies described above, thus provides a kind of modified high precision conductive plastics angular displacement sensor.
The technical scheme that the utility model solves the problem is as follows:
A kind of modified high precision conductive plastics angular displacement sensor, comprise rotating shaft, axle sleeve, the track substrate with film resistance, fixed point lead-out terminal, drive some output slide rail and brush assembly of electric, described brush assembly of electric comprises the first brush plate and the second brush plate, and described first brush plate is connected in aggregates with the second brush plate by reed; Also comprise neck bush, described neck bush is arranged between described brush assembly of electric and rotating shaft; Described first brush plate, the second brush plate respectively with resistance track, drive some output slide rails to contact.
Preferred as technique scheme, the integral installation that described first brush plate and the second brush plate are linked to be is loaded on described neck bush.
Preferred as technique scheme, described fixed point lead-out terminal has the shank of conduction, and described track substrate has spliced eye, and described fixed point lead-out terminal and described track substrate are connected by described shank and spliced eye; And the end of the shank of described conduction is connected by silver soldering with the end being attached to the on-chip film resistance of described track.
Preferred as technique scheme, described sensor also comprises upper cover and shell, transition fit between described upper cover and shell, and transition fit place adopts viscose glue to connect.
Preferred as technique scheme, described axle sleeve is also provided with setscrew nut, by described setscrew nut, described sensor is connected to mechanically tested.
The utility model has following beneficial effect:
The utility model structurally has following several respects to improve compared with existing sensor:
One is simplify the structure of former flow concentrating part; By original brush, brush arm, afflux arm makes two brush parts into and reed is connected into an entirety by Pressure Welding, be contained on neck bush, two brush heads, contact with resistance track, another brush head contacts with drive point output slide rail, angle position signal is exported; Such structure increases the contact area with film resistance on the one hand, reduces friction between the two, and then can reduce the moving noise of sensor; Structure also improves the reliability of product after simplifying simultaneously, and the miniaturization of structure of being more convenient for, also makes production technology simplify further, reduces production cost;
Two is the neck bush adding an insulation between rotating shaft and reed, makes insulation isolation between brush and rotating shaft; Collar in original structure is on-insulated, only plays axial location effect, can not the leakage of anti-stop signal and the importing of external interference; The interference free performance of sensor is improve after improving;
Three is improve the draw bail between fixed point lead-out terminal and resistance track, and adopt grafting to join merga pass silver soldering and connect, structure is originally that connection terminal is welded with resistance track by B alloy wire, and contact is little, and easy rosin joint connects, poor reliability; Dynamic some lead-out terminal adopts a slide rail one-piece construction, although more complicated than original, it and brush directly contact, instead of are stuck in the such structure of collector ring by two afflux silks, make contact more reliable and stable, improve the stability of output signal;
Four is improve in shell connection, mainly removes the sealing means of clamp connection housing and end cap, and upper cover and shell adopt transition fit to add glue bonding way, improve the reliability of sealing and connection;
Five is that the mounting means of sensor improves, and is directly connected to by nut on the fixed part of tested machinery, needs mechanically there is special mounting hole.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the syndeton schematic diagram of the utility model fixed point lead-out terminal and track substrate;
Fig. 3 is the structural representation of the utility model track substrate;
Fig. 4 is the structural representation of the utility model fixed point lead-out terminal;
Fig. 5 is the structural representation of the utility model brush assembly of electric;
Fig. 6 is the structural representation of prior art;
In figure, 1-upper cover, 2-shell, 3-track substrate, 4-axle sleeve, 5-drives a some output slide rail, 6-rotating shaft, 7-neck bush, 8-reed, 9-collar, and 10-fixes a point lead-out terminal, 11-plum blossom pad, 12-setscrew nut, 13-brush assembly of electric; 13-1-first brush plate, 13-2-second brush plate, 3-1-spliced eye, 3-2-film resistance, 10-1-shank, 103-silver soldering.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further detailed.
This embodiment is only to explanation of the present utility model, is not to restriction of the present utility model.The change that those skilled in the art are done after having read instructions of the present utility model, as long as in the scope of claims, all will be subject to the protection of Patent Law.
As Figure 1-5, the angular displacement of a kind of modified high precision conductive plastics, by upper cover 1, shell 2, the track substrate 3 with film resistance 3-2, copper bush 4, drives some output slide rail 5, rotating shaft 6, neck bush 7, reed 8, collar 9, fixed point lead-out terminal 10, plum blossom pad 11, nut 12, brush assembly of electric 13 etc. to form.Described brush assembly of electric 13 comprises the first brush plate 13-1 and the second brush plate 13-2, and the first brush plate 13-1 is connected in aggregates with the second brush plate 13-2 by reed 8; Neck bush 7 is arranged between described brush assembly of electric and rotating shaft 6; The integral installation that described first brush plate 13-1 and the second brush plate 13-2 is linked to be is loaded on described neck bush 7.Described first brush plate 13-1, the second brush plate 13-2 respectively with resistance track, drive some output slide rails 5 to contact.
Described fixed point lead-out terminal 10 has the shank 10-1 of conduction, and described track substrate 3 has spliced eye 3-1, and described fixed point lead-out terminal 10 is connected by described shank 10-1 and spliced eye 3-1 with described track substrate 3; And the end of the shank 10-1 of described conduction is connected by silver soldering 103 with the end of the film resistance be attached on described track substrate 3.
Transition fit between described upper cover 1 and shell 2, and transition fit place adopts viscose glue to connect.Described setscrew nut 12 is arranged on axle sleeve 4, by described setscrew nut 12, described sensor is connected to mechanically tested.
Claims (5)
1. a modified high precision conductive plastics angular displacement sensor, comprise rotating shaft (6), axle sleeve (4), the track substrate (3) with film resistance (3-2), fixed point lead-out terminal (10), drive some output slide rail (5) and brush assembly of electric (13), it is characterized in that: described brush assembly of electric (13) comprises the first brush plate (13-1) and the second brush plate (13-2), described first brush plate (13-1) is connected in aggregates with the second brush plate (13-2) by reed (8); Also comprise neck bush (7), described neck bush (7) is arranged between described brush assembly of electric and rotating shaft (6); Described first brush plate (13-1), the second brush plate (13-2) respectively with resistance track, drive some outputs slide rail (5) to contact.
2. a kind of modified high precision conductive plastics angular displacement sensor according to claim 1, is characterized in that: the integral installation that described first brush plate (13-1) and the second brush plate (13-2) are linked to be is loaded on described neck bush (7).
3. a kind of modified high precision conductive plastics angular displacement sensor according to claim 1, it is characterized in that: described fixed point lead-out terminal (10) has the shank (10-1) of conduction, described track substrate (3) has spliced eye (3-1), and described fixed point lead-out terminal (10) and described track substrate (3) are connected by described shank (10-1) and spliced eye (3-1); And the end of the shank of described conduction (10-1) is connected by silver soldering (103) with the end of the film resistance be attached on described track substrate (3).
4. a kind of modified high precision conductive plastics angular displacement sensor according to claim 1, it is characterized in that: described sensor also comprises upper cover (1) and shell (2), transition fit between described upper cover (1) and shell (2), and transition fit place adopts viscose glue to connect.
5. a kind of modified high precision conductive plastics angular displacement sensor according to claim 1, it is characterized in that: described axle sleeve (4) is also provided with setscrew nut (12), by described setscrew nut (12), described sensor is connected to mechanically tested.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520195314.1U CN204575026U (en) | 2015-04-02 | 2015-04-02 | A kind of modified high precision conductive plastics angular displacement sensor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520195314.1U CN204575026U (en) | 2015-04-02 | 2015-04-02 | A kind of modified high precision conductive plastics angular displacement sensor |
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| CN204575026U true CN204575026U (en) | 2015-08-19 |
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| CN201520195314.1U Active CN204575026U (en) | 2015-04-02 | 2015-04-02 | A kind of modified high precision conductive plastics angular displacement sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959321A (en) * | 2017-12-22 | 2019-07-02 | 中核核电运行管理有限公司 | A kind of device sealing interplanar distance, angle measurement for nuclear leve gate valve seat |
| CN111022807A (en) * | 2019-11-19 | 2020-04-17 | 江苏长龄液压股份有限公司 | Central swivel joint with high-precision angle sensor |
| CN112038027A (en) * | 2020-09-02 | 2020-12-04 | 中国电子科技集团公司第四十九研究所 | High-precision corner sensor and preparation method of resistance sensitive element thereof |
-
2015
- 2015-04-02 CN CN201520195314.1U patent/CN204575026U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109959321A (en) * | 2017-12-22 | 2019-07-02 | 中核核电运行管理有限公司 | A kind of device sealing interplanar distance, angle measurement for nuclear leve gate valve seat |
| CN109959321B (en) * | 2017-12-22 | 2024-03-19 | 中核核电运行管理有限公司 | Device for measuring distance and angle of sealing surface of valve seat of nuclear-grade gate valve |
| CN111022807A (en) * | 2019-11-19 | 2020-04-17 | 江苏长龄液压股份有限公司 | Central swivel joint with high-precision angle sensor |
| CN111022807B (en) * | 2019-11-19 | 2021-06-29 | 江苏长龄液压股份有限公司 | Central swivel joint with high-precision angle sensor |
| CN112038027A (en) * | 2020-09-02 | 2020-12-04 | 中国电子科技集团公司第四十九研究所 | High-precision corner sensor and preparation method of resistance sensitive element thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Shi Wen Inventor after: Wu Tao Inventor after: Wang Xiulin Inventor after: Yu Zhigen Inventor before: Shi Wen Inventor before: Wang Xiulin Inventor before: Yu Zhigen |
|
| CB03 | Change of inventor or designer information | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220323 Address after: 313000 room 406, floor 4, building 4, No. 1818, Gangnan Road, Kangshan street, Huzhou City, Zhejiang Province Patentee after: Huzhou Huiren Control Technology Co.,Ltd. Address before: 313000 building 4, No. 1818, Gangnan Road, development zone, Huzhou City, Zhejiang Province Patentee before: ZHEJIANG HUIREN ELECTRONIC CO.,LTD. |
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| TR01 | Transfer of patent right |