CN220418358U - Miniature multi-turn absolute value stay wire displacement sensor - Google Patents
Miniature multi-turn absolute value stay wire displacement sensor Download PDFInfo
- Publication number
- CN220418358U CN220418358U CN202322085925.8U CN202322085925U CN220418358U CN 220418358 U CN220418358 U CN 220418358U CN 202322085925 U CN202322085925 U CN 202322085925U CN 220418358 U CN220418358 U CN 220418358U
- Authority
- CN
- China
- Prior art keywords
- miniature
- absolute value
- displacement sensor
- wire
- turn absolute
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 26
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 238000004804 winding Methods 0.000 claims abstract description 11
- 230000006698 induction Effects 0.000 claims description 8
- 239000000565 sealant Substances 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The utility model discloses a miniature multi-turn absolute value pull-wire displacement sensor, which comprises a multi-turn gear assembly and a miniature shell, wherein an outlet cap is assembled on one side of the miniature shell; a bearing is pressed in the miniature shell, the bearing is provided with a rotating shaft, and the rotating shaft consists of an encoder shaft, a winding wheel and a clamping groove column which are integrally arranged; the encoder shaft passes through the bearing and acts on the multi-ring gear assembly, the winding wheel is wound and provided with a steel wire rope, one end of the steel wire rope passes out of the miniature shell from the wire outlet cap and is connected with a pull head, and the clamping groove column is used for connecting the turbine spring. The utility model discloses an integrated form design of multiturn absolute value encoder structure and terminal box, pivot structure is by the integrative setting of encoder axle, reel, draw-in groove post promptly to reduce the whole volume of line sensor, in order to satisfy the user demand of narrow and small occasion. And moreover, the application of a multi-circle gear absolute positioning structure is realized, the absolute measurement of a stay wire sensor is achieved, and the advantage of high precision is achieved.
Description
Technical Field
The utility model relates to a stay wire displacement sensor, in particular to a miniature multi-turn absolute value stay wire displacement sensor.
Background
The traditional stay wire displacement sensor generally consists of two parts of structures of an encoder main body and an external stay wire box of the encoder, has larger volume and can not be applied to occasions with limited space. According to the multi-turn absolute value encoder disclosed in the patent CN211042261U, the effect of improving the rotation precision and realizing the absolute positioning is achieved through the arrangement of a multi-turn gear structure. Based on this, how to integrate the multi-turn absolute value encoder into the stay wire displacement sensor to meet the requirement of narrow application is a problem to be solved.
Disclosure of Invention
In order to solve the defects of the technology, the utility model provides a miniature multi-turn absolute value stay wire displacement sensor.
In order to solve the technical problems, the utility model adopts the following technical scheme: the miniature multi-turn absolute value pull-wire displacement sensor comprises a multi-turn gear assembly, and also comprises a miniature shell, wherein an outlet cap is assembled on one side of the miniature shell;
a bearing is pressed in the miniature shell, the bearing is provided with a rotating shaft, the rotating shaft is arranged in a cavity of the miniature shell, and the rotating shaft 5 consists of an integrally arranged encoder shaft, a winding wheel and a clamping groove column;
the encoder shaft passes through the bearing and acts on the multi-ring gear assembly, the winding wheel is wound and provided with a steel wire rope, one end of the steel wire rope passes out of the miniature shell from the wire outlet cap and is connected with a pull head, and the clamping groove column is used for connecting the turbine spring.
Further, an upper cover is assembled on the top of the micro-shell, and a lower cover is assembled on the bottom.
Further, a wire outlet hole is formed in the wire winding wheel, and the other end of the steel wire rope penetrates out of the wire outlet hole and is knotted.
Further, the turbine spring is arranged in the groove of the upper cover, and one end of the turbine spring is fixed in the clamping groove formed in the clamping groove column.
Further, a spacer is provided between the contact surfaces of the turbine spring and the spool.
Further, a ceramic head is arranged in the wire outlet cap, and a rubber pad for protecting the steel wire rope is arranged at the end part of the pull head.
Further, the multi-ring gear assembly comprises a main shaft gear and a secondary shaft gear meshed with the main shaft gear, and the shaft bottom of the main shaft gear and the shaft bottom of the secondary shaft gear are respectively provided with a magnet.
Further, a circuit board is arranged in the lower cover, a magnetic field induction chip is integrated on the circuit board, and each magnet corresponds to one magnetic field induction chip.
Further, the magnet part is sleeved with a magnetic shielding ring.
Further, after the components in the lower cover are completely assembled, pouring sealant into the lower cover.
The utility model discloses a miniature multi-turn absolute value stay wire displacement sensor, which realizes the integrated design of a multi-turn absolute value encoder structure and a stay wire box, namely, a rotating shaft structure is integrally arranged by an encoder shaft, a winding wheel and a clamping groove column, so that the whole volume of the stay wire sensor is reduced, and the use requirement of a narrow occasion is met. And moreover, the application of a multi-circle gear absolute positioning structure is realized, the absolute measurement of a stay wire sensor is achieved, and the advantage of high precision is achieved. In addition, the lower cover is treated by pouring sealant, so that the electronic component and the mechanical component are isolated, the waterproof effect is achieved, and the safety of the product is improved.
Drawings
Fig. 1 is an exploded view of the overall structure of the present utility model.
Fig. 2 is a cross-sectional view of the structure of the present utility model.
Fig. 3 is an overall assembly view of the present utility model.
FIG. 4 is a schematic view of the installation of the turbine spring of the present utility model.
FIG. 5 is a schematic view of the structure of the spindle of the present utility model.
Fig. 6 is a gear diagram of the present utility model.
In the figure: 1. an upper cover; 2. a turbine spring; 3. a gasket; 4. a wire rope; 5. a rotating shaft; 501. an encoder shaft; 502. a reel; 503. a clamping groove column; 504. a clamping groove; 505. a wire outlet hole; 6. a bearing; 7. a miniature housing; 8. a spindle gear; 8-1, countershaft gears; 9. a magnet; 10. a circuit board; 11. a lower cover; 12. a bolt; 13. a wire outlet cap; 14. a rubber pad; 15. a pull head; 16. pouring sealant.
Detailed Description
The utility model will be described in further detail with reference to the drawings and the detailed description.
The embodiment discloses a miniature multiturn absolute value displacement sensor that acts as go-between, including miniature casing 7, be equipped with upper cover 1 through bolt 12 at the top of miniature casing 7, be equipped with lower cover 11 through the bolt at the bottom of miniature casing 7, constitute the outside major structure of this displacement sensor that acts as go-between by upper cover 1, lower cover 11 and miniature casing 7 jointly.
First, as shown in fig. 1, a bearing 6 is press-fitted into a micro-housing 7, and the bearing 6 is used for mounting the rotary shaft 5. As shown in fig. 5, to satisfy the integrated design of the main structure of the encoder and the pull sensor, the rotating shaft 5 is disposed in the cavity of the micro-housing 7, and the rotating shaft 5 is composed of an encoder shaft 501, a winding wheel 502 and a clamping groove post 503 which are integrally disposed.
The wire rope 4 is wound on the wire winding wheel 502, the wire winding wheel 502 is provided with a wire outlet hole 505, and one end of the wire rope 4 passes through the wire outlet hole 505 and then is knotted to realize fixation; the other end extends out from the outlet cap 13 on the miniature housing 7 and is connected with a pull head 15.
And, the wire outlet cap 13 is fixed on one side of the miniature shell 7 through interference fit or bonding, and the ceramic head is arranged in the wire outlet cap 13, so that the wire outlet cap is more wear-resistant and durable, and the service life of pulling the steel wire rope can be prolonged to a certain extent. Meanwhile, the end part of the pull head 15 is provided with the rubber pad 14, and the buffer performance can be increased through the rubber pad 14 so as to prolong the service life of the steel wire rope.
The clamping groove column 503 is provided with a clamping groove 504, the turbine spring 2 is used as a stretching mechanism of the stay wire displacement sensor, as shown in fig. 4, and is placed in the groove of the upper cover 1, one end of the turbine spring 2 is fixed in the groove of the upper cover 1, and the other end is fixedly clamped in the clamping groove 504 of the clamping groove column 503.
A spacer 3 is provided between the contact surfaces of the turbine spring 2 and the reel 502 to prevent friction between the turbine spring and the reel. After the shaft 5 is assembled to the bearing 6, a spacer is placed, the turbine spring 2 is assembled into the upper cover 1, one end of the turbine spring is fixedly clamped in the clamping groove 504, and the upper cover 1 and the micro-housing 7 are fixed by the screw 12.
Wherein, after the encoder shaft 501 passes through the bearing 6 downwards, the encoder shaft acts on the multi-turn gear assembly, and when the pull head is pulled, the rotating shaft 5 rotates, so as to drive the multi-turn gear assembly to act.
As shown in fig. 1 and 6, the multi-ring gear assembly includes a main shaft gear 8, and a counter shaft gear 8-1 meshed with the main shaft gear 8; a magnet 9 is respectively arranged at the shaft bottom of the main shaft gear 8 and the shaft bottom of the auxiliary shaft gear 8-1. Meanwhile, a circuit board 10 is mounted in the lower cover 11, a magnetic field induction chip is integrated on the circuit board 10, and one magnet 9 corresponds to one magnetic field induction chip. Meanwhile, a magnetic shielding ring is sleeved on the upper part of the magnet 9, and the part of the magnet 9 exposed on the magnetic shielding ring is opposite to the corresponding magnetic field induction chip, so that the induction center of each chip and the axle center of the magnet 9 of the corresponding gear assembly are on the same line. The magnetic shielding ring can be used for shielding the mutual magnetic field interference of the magnets in each gear assembly and the external magnetic field interference.
After the circuit board 10 is connected into the lower cover 11 through screws and the completion of each component in the lower cover is completed, as shown in fig. 2, a black pouring sealant 16 is smeared in the lower cover by using a handheld electric dispenser for curing, so that the mechanical part and the electronic part in the stay wire displacement sensor are isolated, and the sealing and waterproof effects are achieved. After the black pouring sealant is cured, the lower cover 11 is connected to the micro-housing 7 by a screw 12. Thus, the assembly of the stay wire displacement sensor is completed.
Therefore, the miniature multi-turn absolute value stay wire displacement sensor disclosed by the utility model has the following working principle: when the steel wire rope at one end of the pull head is pulled out by external force, the rotating shaft 5 is driven to rotate, the rotating shaft synchronously drives the turbine spring and the main shaft gear to rotate, and the auxiliary shaft gear meshed through the gears also synchronously rotates, so that the corresponding magnet is driven to rotate. Similarly, when external force disappears after measurement, the resilience force of the turbine spring can drive the rotating shaft to rotate, so that the steel wire rope is retracted, in the process, the magnets assembled by the main shaft gear and the auxiliary shaft gear also synchronously rotate, the magnetic field sensing chip can detect the rotation angle of the corresponding magnet relative to the miniature shell, and further, the relation between the angle difference stored on the circuit board and the number of turns is calculated, so that measurement information is output, and the absolute positioning measurement effect is achieved.
The above embodiments are not intended to limit the present utility model, and the present utility model is not limited to the above examples, but is also intended to be limited to the following claims.
Claims (10)
1. The utility model provides a miniature multiturn absolute value draws linear displacement sensor, includes multiturn gear assembly, its characterized in that: the wire outlet device also comprises a miniature shell (7), wherein a wire outlet cap (13) is assembled on one side of the miniature shell (7);
a bearing (6) is pressed in the miniature shell (7), the bearing (6) is provided with a rotating shaft (5), the rotating shaft (5) is arranged in a cavity of the miniature shell (7), and the rotating shaft (5) consists of an encoder shaft (501), a winding wheel (502) and a clamping groove column (503) which are integrally arranged;
the encoder shaft (501) penetrates through the bearing (6) and acts on the multi-ring gear assembly, the wire winding wheel (502) is wound with the steel wire rope (4), one end of the steel wire rope (4) penetrates out of the miniature shell (7) from the wire outlet cap (13) and is connected with the pull head (15), and the clamping groove column (503) is used for connecting the turbine spring (2).
2. The miniature multi-turn absolute value pull-wire displacement sensor of claim 1, wherein: an upper cover (1) is arranged on the top of the miniature shell (7), and a lower cover (11) is arranged on the bottom of the miniature shell.
3. The miniature multi-turn absolute value pull-wire displacement sensor of claim 2, wherein: the wire coiling wheel (502) is provided with a wire outlet hole (505), and the other end of the steel wire rope (4) penetrates out of the wire outlet hole (505) and is knotted.
4. A miniature multi-turn absolute value pull-wire displacement sensor according to claim 3, wherein: the turbine spring (2) is arranged in the groove of the upper cover (1), and one end of the turbine spring (2) is fixed in a clamping groove (504) formed in the clamping groove column (503).
5. The miniature multi-turn absolute value pull-wire displacement sensor of claim 4, wherein: a spacer (3) is provided between the contact surface of the turbine spring (2) and the reel (502).
6. The miniature multi-turn absolute value pull-wire displacement sensor of claim 2 or 5, wherein: the ceramic head is arranged in the wire outlet cap (13), and a rubber pad (14) for protecting the steel wire rope is arranged at the end part of the pull head (15).
7. The miniature multi-turn absolute value pull-wire displacement sensor of claim 6, wherein: the multi-ring gear assembly comprises a main shaft gear (8) and a countershaft gear (8-1) meshed with the main shaft gear (8), and a magnet (9) is respectively arranged at the shaft bottom of the main shaft gear (8) and the shaft bottom of the countershaft gear (8-1).
8. The miniature multi-turn absolute value pull-wire displacement sensor of claim 7, wherein: a circuit board (10) is arranged in the lower cover (11), a magnetic field induction chip is integrated on the circuit board (10), and each magnet (9) corresponds to one magnetic field induction chip.
9. The miniature multi-turn absolute value pull-wire displacement sensor of claim 8, wherein: and a magnetic shielding ring is sleeved on the magnet (9).
10. The miniature multi-turn absolute value pull-wire displacement sensor of claim 9, wherein: after the components in the lower cover (11) are completely assembled, pouring sealant (16) into the lower cover (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322085925.8U CN220418358U (en) | 2023-08-03 | 2023-08-03 | Miniature multi-turn absolute value stay wire displacement sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322085925.8U CN220418358U (en) | 2023-08-03 | 2023-08-03 | Miniature multi-turn absolute value stay wire displacement sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220418358U true CN220418358U (en) | 2024-01-30 |
Family
ID=89660819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322085925.8U Active CN220418358U (en) | 2023-08-03 | 2023-08-03 | Miniature multi-turn absolute value stay wire displacement sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220418358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117968607A (en) * | 2024-03-28 | 2024-05-03 | 常熟理工学院 | Pull rope type displacement sensor |
-
2023
- 2023-08-03 CN CN202322085925.8U patent/CN220418358U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117968607A (en) * | 2024-03-28 | 2024-05-03 | 常熟理工学院 | Pull rope type displacement sensor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220418358U (en) | Miniature multi-turn absolute value stay wire displacement sensor | |
| CN220418357U (en) | Active winding displacement sensor with multiple turns of absolute value stay wires | |
| CN201829334U (en) | Rotating electric steering engine and contactless rotating transformer thereof | |
| JP2002084699A5 (en) | ||
| CN220583307U (en) | Multi-turn absolute value stay wire displacement sensor | |
| CN203274768U (en) | Integrated type photoelectric encoder with servo motor | |
| CN220002932U (en) | 3D rocker mounting structure | |
| CN101846488A (en) | Precise displacement sensor | |
| CN201511332U (en) | Novel electric screw driver | |
| CN208094302U (en) | A kind of integrated form has the DC brushless miniature motor of position sensing | |
| CN215897486U (en) | Rotary extension motor | |
| CN212588220U (en) | Integrated servo electric cylinder | |
| CN209424885U (en) | A kind of servo press | |
| CN108448777B (en) | Stator and motor | |
| CN202405935U (en) | Permanent-magnetic direct current motor of electric bed | |
| CN201740503U (en) | Precise displacement sensor | |
| CN221571429U (en) | Novel stay wire displacement sensor | |
| CN2840498Y (en) | Internal rotor type DC brushless electric machine with Hall element sensing | |
| CN209896791U (en) | Electric machine | |
| CN111203866A (en) | Brushless outer rotor steering wheel and robot | |
| CN209267378U (en) | A kind of deviation-rectifying system non-contact type magnetic position encoder | |
| CN221259906U (en) | Super-limit motion type SMR encoder | |
| CN206878635U (en) | A kind of multifunctional motor | |
| CN221729446U (en) | Integrated electric fishing reel with accurate counting function | |
| CN212254127U (en) | Contactless binary channels becomes transmitter structure soon |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |