CN107314850B - Capacitive induction type silk thread tension measuring device - Google Patents
Capacitive induction type silk thread tension measuring device Download PDFInfo
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- CN107314850B CN107314850B CN201710586141.XA CN201710586141A CN107314850B CN 107314850 B CN107314850 B CN 107314850B CN 201710586141 A CN201710586141 A CN 201710586141A CN 107314850 B CN107314850 B CN 107314850B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/04—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands
- G01L5/10—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands using electrical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
- B65H59/16—Braked elements rotated by material
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- Force Measurement Appropriate To Specific Purposes (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
The invention discloses a capacitance induction type silk thread tension measuring device, which comprises a fixed disc, a rotating disc and a fixed shaft, wherein the fixed disc is connected with the rotating disc through the fixed shaft; the fixed plate is provided with a first coaxial annular groove, the lower surface of the rotating disk is provided with a second coaxial annular groove, the first coaxial annular groove and the second coaxial annular groove are respectively provided with a fixed polar plate frame and a rotating polar plate frame, the fixed polar plate frame is connected with the fixed polar plate, the rotating polar plate frame is connected with the rotating polar plate, and the fixed polar plate and the rotating polar plate form a polar plate pair with a fixed gap; the slide block is provided with a fixed guide wheel which is fixedly connected with the fixed shaft through a connecting arm, and the rotary disk is provided with a first rotary guide wheel and a second rotary guide wheel respectively. According to the capacitance induction type silk thread tension measuring device, silk thread tension is converted into a relative rotation angle of an induction capacitance array, the area of an induction capacitor is changed, and the capacitance variation is detected through a capacitance measuring circuit, so that the size of the silk thread tension is reflected.
Description
Technical Field
The invention relates to a capacitance induction type silk thread tension measuring device.
Background
Yarn tension measurement is an important link in the textile process, and real-time measurement of yarn tension relates to quality and production efficiency of fabrics. The tension measurement method mostly adopts a cantilever beam and strain resistance method to convert the tension into an electric signal. Tension measurement using capacitance sensing has found application in other fields, such as the methods described in documents CN201110376420, CN201110376461 for measuring wire rope tension using capacitance sensing. However, the tension measured by the method changes along with the gap of the capacitor plate, the tension and the gap are in inverse proportion, and the linearization difficulty is high; and the tiny gap change can cause larger change of the measurement result, is easily influenced by external vibration and impact, has higher requirements on application environment, and is not suitable for measuring the tension of the silk thread.
Disclosure of Invention
The invention aims to provide a capacitance induction type silk thread tension measuring device which converts silk thread tension into a relative rotation angle of an induction capacitor array, changes the area of an induction capacitor, and detects the capacitance variation through a capacitance measuring circuit so as to reflect the size of silk thread tension.
In order to achieve the above purpose, the technical scheme of the invention is as follows:
the capacitive induction type silk thread tension measuring device comprises a fixed disc, a rotating disc and a fixed shaft, wherein the fixed disc is connected with the rotating disc through the fixed shaft; the fixed plate is provided with more than 1 first coaxial annular grooves, the lower surface of the rotating disc is provided with more than 1 second coaxial annular grooves, the first coaxial annular grooves and the second coaxial annular grooves are respectively provided with a fixed polar plate frame and a rotating polar plate frame, the fixed polar plate frame and the rotating polar plate frame are arranged at intervals, the fixed polar plate frame is connected with a fixed polar plate, the rotating polar plate frame is connected with a rotating polar plate, and the fixed polar plate and the rotating polar plate form a polar plate pair with a fixed gap; the upper surface of the rotary disk is provided with an arc-shaped groove, a sliding block and a spring are respectively arranged in the arc-shaped groove, one end of the spring is connected with the sliding block, and the other end of the spring is connected with the inner side wall of the arc-shaped groove of the rotary disk; the fixed guide wheels are fixedly connected with the fixed shaft through connecting arms, and the rotary disk is provided with a first rotary guide wheel and a second rotary guide wheel respectively.
An included angle between a connecting line between the first rotating guide wheel and the fixed shaft and a connecting line between the second rotating guide wheel and the fixed shaft is 90 degrees.
The arc-shaped groove is a quarter ring, and the guide wheel axial leads of the first rotary guide wheel and the second rotary guide wheel are positioned on the same ring with the arc-shaped groove.
The shielding cover is arranged outside the rotating disc, the shielding shell is connected with the shielding cover, and an arc-shaped hole is formed in the shielding cover.
The fixed shaft comprises a shaft shoulder, the shaft shoulder is connected with a first step column, the first step column is connected with a second step column, the second step column is connected with a third step column, the third step column is connected with a threaded rod, and a first key slot is formed in the third step column; the fixed disc and the fixed shaft are coaxially arranged, and the fixed disc is arranged on the first step column; the second step column is connected with the inner ring of the bearing, and the outer ring of the bearing is connected with the rotating disc.
The fixed plate passes through the first fixed positioning pinholes and the second fixed positioning pinholes through the fixed positioning needles and then is connected with the fixed polar plate frame, and the fixed polar plate frame is adhered with the fixed polar plate; the rotary plate is characterized in that a first rotary positioning pinhole is formed in the side wall of the rotary plate frame, a second rotary positioning pinhole is formed in the side wall of the rotary plate frame, the rotary plate passes through the first rotary positioning pinhole and the second rotary positioning pinhole through rotary positioning needles and then is connected with the rotary plate frame, and a rotary plate is bonded on the rotary plate frame.
The connecting arm is characterized in that a first shaft hole is formed in one end of the connecting arm, a second key groove is formed in the inner side wall of the first shaft hole, the first shaft hole is fixedly arranged on the third step column, keys are arranged in the second key groove and the first key groove, a locking nut is arranged on a threaded rod above the first shaft hole, and the locking nut is in abutting installation with the connecting arm; the other end of the connecting arm is provided with a second shaft hole.
The sliding block is provided with a fixed guide wheel shaft, the fixed guide wheel shaft comprises a fixed guide wheel shaft threaded rod, the fixed guide wheel shaft threaded rod is connected with a fixed guide wheel shaft hexagonal column, the fixed guide wheel shaft hexagonal column is connected with a first fixed guide wheel shaft optical axis, the first fixed guide wheel shaft optical axis is connected with a second fixed guide wheel shaft optical axis, and a fixed guide wheel shaft groove is formed in the second fixed guide wheel shaft optical axis; the fixed guide wheel shaft threaded rod is connected with the sliding block, the first fixed guide wheel shaft optical axis penetrates through the second shaft hole and then is connected with the connecting arm, the second fixed guide wheel shaft optical axis is provided with a fixed guide wheel, and the fixed guide wheel shaft groove is internally provided with a fixed guide wheel shaft clamp spring.
The rotary disc is provided with a first rotary guide wheel shaft, the first rotary guide wheel shaft comprises a first rotary guide wheel shaft threaded rod, the first rotary guide wheel shaft threaded rod is connected with a first rotary guide wheel shaft hexagonal column, the first rotary guide wheel shaft hexagonal column is connected with a first rotary guide wheel shaft optical axis, and a first rotary guide wheel shaft groove is formed in the first rotary guide wheel shaft optical axis; the first rotating guide wheel shaft threaded rod is connected with the rotating disc, a first rotating guide wheel is installed on the optical axis of the first rotating guide wheel shaft, and a first rotating guide wheel shaft clamp spring is installed in the first rotating guide wheel shaft groove.
The rotating disc is provided with a second rotating guide wheel shaft, the second rotating guide wheel shaft comprises a second rotating guide wheel shaft threaded rod, the second rotating guide wheel shaft threaded rod is connected with a second rotating guide wheel shaft hexagonal column, the second rotating guide wheel shaft hexagonal column is connected with a second rotating guide wheel shaft optical axis, and a second rotating guide wheel shaft groove is formed in the second rotating guide wheel shaft optical axis; the second rotary guide wheel shaft threaded rod is connected with the rotary disc, a second rotary guide wheel is arranged on the optical axis of the second rotary guide wheel shaft, and a second rotary guide wheel shaft clamp spring is arranged in the second rotary guide wheel shaft groove.
The beneficial effects of the invention are as follows: (1) The invention adopts the capacitor plate array form to improve the structure of the induction capacitor, effectively increases the induction area and improves the measurement sensitivity; (2) The tension of the silk thread is converted into the relative rotation angle of the capacitor polar plate, the induction area is changed, the nonlinear problem caused by the change of the polar plate gap is avoided, the stability of signals is improved, and the difficulty of signal processing is reduced.
Drawings
FIG. 1 is a schematic view of a non-shielded assembly according to the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is a schematic view of a stationary shaft;
FIG. 4 is a schematic view of a structure of a fixed disk;
FIG. 5 is a schematic diagram of a structure of a sensing capacitor;
FIG. 6 is a schematic diagram of the top surface structure of a rotary disk;
FIG. 7 is a schematic view of the bottom surface structure of the rotary disk;
FIG. 8 is a schematic view of a fixed idler shaft;
FIG. 9 is a schematic view of a first rotary idler shaft;
FIG. 10 is a schematic view of a second rotary idler shaft;
FIG. 11 is a schematic view of a connecting arm structure;
fig. 12 is a schematic view of a shield shell structure;
fig. 13 is a schematic view of a shield cover structure;
FIG. 14 is a schematic diagram of capacitive coupling;
fig. 15 is a schematic view showing a state of initial winding position;
fig. 16 is a schematic view of a position of the rotating disc after rotating a certain angle.
Detailed Description
Example 1
As shown in fig. 1, 2, 4, 5, 6 and 7, a capacitive sensing type yarn tension measuring device comprises a fixed disc 1, a rotating disc 2 and a fixed shaft 3, wherein the fixed disc 1 is connected with the rotating disc 2 through the fixed shaft 3; the fixed disc 1 is provided with more than 1 first coaxial annular grooves 11, the lower surface of the rotary disc 2 is provided with more than 1 second coaxial annular grooves 21, the first coaxial annular grooves 11 and the second coaxial annular grooves 21 are respectively provided with a fixed polar plate frame 41 and a rotary polar plate frame 42, the fixed polar plate frame 41 and the rotary polar plate frame 42 are arranged at intervals, the fixed polar plate frame 41 is connected with a fixed polar plate 43, the rotary polar plate frame 42 is connected with a rotary polar plate 44, and the fixed polar plate 43 and the rotary polar plate 44 form a polar plate pair with a fixed gap; an arc-shaped groove 22 is formed in the upper surface of the rotary disk 2, a sliding block 23 and a spring 24 are respectively arranged in the arc-shaped groove 22, one end of the spring 24 is connected with the sliding block 23, a spring seat is arranged in the arc-shaped groove 22 of the rotary disk 2, and the other end of the spring 24 is connected with the spring seat; the fixed guide wheel 4 is arranged on the sliding block 23, the fixed guide wheel 4 is fixedly connected with the fixed shaft 3 through the connecting arm 5, and the first rotary guide wheel 6 and the second rotary guide wheel 7 are respectively arranged on the rotary disk 2. The fixed disk 1, the rotary disk 2, the fixed pole plate frame 41 and the rotary pole plate frame 42 are all made of insulating materials. The fixed electrode plate 43 and the rotary electrode plate 44 are made of copper foil or aluminum foil, and aluminum oxide is sprayed on the surfaces to insulate the surfaces.
The included angle between the connecting line between the first rotating guide wheel 6 and the fixed shaft 3 and the connecting line between the second rotating guide wheel 7 and the fixed shaft 3 is 90 degrees.
The arc-shaped groove 22 is a quarter ring, and the guide wheel axial leads of the first rotary guide wheel 6 and the second rotary guide wheel 7 and the arc-shaped groove 22 are positioned on the same ring.
As shown in fig. 12 and 13, a shielding shell 91 is installed outside the fixed disk 1, a shielding cover 92 is installed outside the rotating disk 2, the shielding shell 91 is connected with the shielding cover 92, and an arc-shaped hole 93 is formed in the shielding cover 92. The bottom plate of the shielding shell 91 is provided with a central hole, four round holes are formed around the central hole, and the four round holes correspond to the four round holes on the shaft shoulder 31 of the fixed shaft 3 and the four threaded holes on the fixed disk 1. The shield 91 is mounted between the shoulder 31 of the fixed shaft 3 and the fixed disk 1, and the three are fixed by screws. The shield cover 92 includes a top plate having a diameter larger than that of the side wall of the shield case 91 and a skirt so that the side wall of the shield case 91 can be fitted into the skirt of the shield cover 92 and brought into close contact. After the shield cover 92 is installed, the fixed sheave shaft 61 is placed in the edge circular hole, and the first rotary sheave shaft 71 and the second sheave shaft 81 are placed in the arc-shaped hole. The shield shell 91 and the shield cover 92 are made of conductive materials.
As shown in fig. 3, the fixed shaft 3 comprises a shaft shoulder 31, and four round holes are formed in the end face of the shaft shoulder 31; four threaded holes are formed around the central hole of the fixed disc 1 and correspond to four round holes on the shaft shoulder 31 of the fixed shaft 3. The shaft shoulder 31 is connected with the first step post 32, the first step post 32 is connected with the second step post 33, the second step post 33 is connected with the third step post 34, the third step post 34 is connected with the threaded rod 35, and the third step post 34 is provided with a first key slot 36; the fixed disc 1 and the fixed shaft 3 are coaxially arranged, and the fixed disc 1 is arranged on the first step column 32; the second step post 33 is connected with an inner ring of a bearing 37, and an outer ring of the bearing 37 is connected with the rotating disc 2.
A first fixed positioning pinhole 12 is formed in the side wall of the fixed disc 1, a second fixed positioning pinhole 13 is formed in the lower side wall of the fixed polar plate frame 41, the fixed disc 1 passes through the first fixed positioning pinhole 12 and the second fixed positioning pinhole 13 through fixed positioning needles and then is connected with the fixed polar plate frame 41, and a fixed polar plate 43 is adhered to the fixed polar plate frame 41; the side wall of the rotary disk 2 is provided with a first rotary positioning pinhole 25, the side wall of the rotary polar plate frame 42 is provided with a second rotary positioning pinhole 26, the rotary disk 2 is connected with the rotary polar plate frame 42 after passing through the first rotary positioning pinhole 25 and the second rotary positioning pinhole 26 through rotary positioning needles, and the rotary polar plate frame 42 is adhered with a rotary polar plate 44.
As shown in fig. 11, a first shaft hole 51 is formed at one end of the connecting arm 5, a second key groove 52 is formed on the inner side wall of the first shaft hole 51, the first shaft hole 51 is fixedly mounted on the third step post 34, keys 53 are mounted in the second key groove 52 and the first key groove 36, a lock nut 55 is mounted on the threaded rod 35 above the first shaft hole 51, and the lock nut 55 is tightly abutted against the connecting arm 5; the other end of the connecting arm 5 is provided with a second shaft hole 54.
As shown in fig. 8, the slider 23 is provided with a fixed idler shaft 61, the fixed idler shaft 61 includes a fixed idler shaft threaded rod 62, the fixed idler shaft threaded rod 62 is connected with a fixed idler shaft hexagonal column 63, the fixed idler shaft hexagonal column 63 is connected with a first fixed idler shaft optical axis 64, the first fixed idler shaft optical axis 64 is connected with a second fixed idler shaft optical axis 65, and the second fixed idler shaft optical axis 65 is provided with a fixed idler shaft groove 66; the fixed guide wheel shaft threaded rod 62 is connected with the sliding block 23, the first fixed guide wheel shaft optical axis 64 passes through the second shaft hole 54 and then is connected with the connecting arm 5, the fixed guide wheel 4 is installed on the second fixed guide wheel shaft optical axis 65, the fixed guide wheel shaft clamp spring 67 is installed in the fixed guide wheel shaft groove 66, and the fixed guide wheel shaft clamp spring 67 is arranged to prevent the fixed guide wheel 4 from falling off.
As shown in fig. 9, a first rotating guide wheel shaft 71 is installed on the rotating disc 2, the first rotating guide wheel shaft 71 includes a first rotating guide wheel shaft threaded rod 72, the first rotating guide wheel shaft threaded rod 72 is connected with a first rotating guide wheel shaft hexagonal column 73, the first rotating guide wheel shaft hexagonal column 73 is connected with a first rotating guide wheel shaft optical axis 74, and a first rotating guide wheel shaft groove 75 is formed in the first rotating guide wheel shaft optical axis 74; the first rotating guide wheel shaft threaded rod 72 is connected with the rotating disc 2, the first rotating guide wheel 6 is installed on the first rotating guide wheel shaft optical axis 74, the first rotating guide wheel shaft clamp spring 76 is installed in the first rotating guide wheel shaft groove 75, and the first rotating guide wheel shaft clamp spring 76 is arranged to prevent the first rotating guide wheel 6 from falling off.
As shown in fig. 10, a second rotary guide wheel shaft 81 is mounted on the rotary disk 2, the second rotary guide wheel shaft 81 includes a second rotary guide wheel shaft threaded rod 82, the second rotary guide wheel shaft threaded rod 82 is connected with a second rotary guide wheel shaft hexagonal post 83, the second rotary guide wheel shaft hexagonal post 83 is connected with a second rotary guide wheel shaft optical axis 84, and a second rotary guide wheel shaft groove 85 is formed in the second rotary guide wheel shaft optical axis 84; the second rotating guide wheel shaft threaded rod 82 is connected with the rotating disc 2, the second rotating guide wheel 7 is installed on the second rotating guide wheel shaft optical axis 84, the second rotating guide wheel shaft clamp spring 86 is installed in the second rotating guide wheel shaft groove 85, and the second rotating guide wheel shaft clamp spring 86 is arranged to prevent the second rotating guide wheel 7 from falling off.
As shown in fig. 14, 15 and 16, a capacitive sensing type wire tension measuring device works according to the following principle: after the device is installed, each plate on the fixed plate 43 is connected together by a wire to form one pole of the induction capacitor, and each plate on the rotating plate 44 is connected together by a wire to form the other pole of the induction capacitor. In the initial position, the fixed plate 43 and the rotary plate 44 are positioned at the same position, the area of the sensing capacitor is maximum, and the capacitance value is also maximum. When rotating, the fixed guide shaft 61 fixes the slider 23, and the spring 24 has one end fixed and the other end rotated together with the rotating disk 2, thereby compressing the spring 24. When the silk thread is wound around the fixed guide wheel 4, the first rotating guide wheel 6 and the second rotating guide wheel 7 respectively, a rotating moment is generated on the rotating assembly and the silk thread is driven to rotate in the direction of compressing the spring 24 until the compression force of the spring 24 is balanced. The larger the wire tension, the larger the rotational moment generated, and the larger the rotation angle of the rotating disc 2. The rotating disk 2 rotates to drive the rotating polar plate 44 to generate dislocation, so that the area of the induction capacitor is reduced, and the capacitance value is reduced. As described above, the larger the tension of the yarn, the larger the rotation angle of the rotary disk 2, the smaller the area of the induction capacitor, and the larger the capacitance value change. The capacitance change can be accurately measured by a capacitance measuring circuit (CV circuit), and thus the capacitance change is converted into the tension of the wire. In addition, the shield case 91 and the shield cover 92 enclose the induction capacitance, and reduce the influence of external electromagnetic interference on the induction capacitance.
According to the capacitive sensing type silk thread tension measuring device, silk thread tension is converted into a relative rotation angle of a sensing capacitor array, the area of a sensing capacitor is changed, and the capacitance change is detected through a capacitance measuring circuit, so that the size of the silk thread tension is reflected.
Claims (8)
1. A capacitive sensing wire tension measurement device, characterized in that: the device comprises a fixed disc (1), a rotating disc (2) and a fixed shaft (3), wherein the fixed disc (1) is connected with the rotating disc (2) through the fixed shaft (3); the fixed disc (1) is provided with more than 1 first coaxial annular grooves (11), the lower surface of the rotating disc (2) is provided with more than 1 second coaxial annular grooves (21), the first coaxial annular grooves (11) and the second coaxial annular grooves (21) are respectively provided with a fixed polar plate frame (41) and a rotating polar plate frame (42), the fixed polar plate frame (41) is arranged at intervals with the rotating polar plate frame (42), the fixed polar plate frame (41) is connected with the fixed polar plate (43), the rotating polar plate frame (42) is connected with the rotating polar plate (44), and the fixed polar plate (43) and the rotating polar plate (44) form a polar plate pair with a fixed gap; an arc-shaped groove (22) is formed in the upper surface of the rotary disk (2), a sliding block (23) and a spring (24) are respectively arranged in the arc-shaped groove (22), one end of the spring (24) is connected with the sliding block (23), and the other end of the spring (24) is connected with the inner side wall of the arc-shaped groove (22) of the rotary disk (2); the fixed guide wheel (4) is mounted on the sliding block (23), the fixed guide wheel (4) is fixedly connected with the fixed shaft (3) through the connecting arm (5), and the first rotary guide wheel (6) and the second rotary guide wheel (7) are respectively mounted on the rotary disk (2);
the fixed shaft (3) comprises a shaft shoulder (31), the shaft shoulder (31) is connected with a first step column (32), the first step column (32) is connected with a second step column (33), the second step column (33) is connected with a third step column (34), the third step column (34) is connected with a threaded rod (35), and a first key groove (36) is formed in the third step column (34); the fixed disc (1) and the fixed shaft (3) are coaxially arranged, and the fixed disc (1) is arranged on the first step column (32); the second step column (33) is connected with the inner ring of the bearing (37), and the outer ring of the bearing (37) is connected with the rotating disc (2); a first fixed positioning pinhole (12) is formed in the side wall of the fixed disc (1), a second fixed positioning pinhole (13) is formed in the lower side wall of the fixed polar plate frame (41), the fixed disc (1) passes through the first fixed positioning pinhole (12) and the second fixed positioning pinhole (13) through fixed positioning needles and then is connected with the fixed polar plate frame (41), and a fixed polar plate (43) is adhered to the fixed polar plate frame (41); the rotary plate comprises a rotary plate frame (42), and is characterized in that a first rotary positioning pinhole (25) is formed in the side wall of the rotary plate frame (2), a second rotary positioning pinhole (26) is formed in the upper side wall of the rotary plate frame (42), the rotary plate (2) passes through the first rotary positioning pinhole (25) and the second rotary positioning pinhole (26) through rotary positioning needles and then is connected with the rotary plate frame (42), and a rotary plate (44) is bonded on the rotary plate frame (42).
2. A capacitive sensing wire tension measuring device as defined in claim 1, wherein: an included angle between a connecting line between the first rotary guide wheel (6) and the fixed shaft (3) and a connecting line between the second rotary guide wheel (7) and the fixed shaft (3) is 90 degrees.
3. A capacitive sensing wire tension measuring device as defined in claim 2, wherein: the arc-shaped groove (22) is a quarter ring, and the guide wheel axial leads of the first rotary guide wheel (6) and the second rotary guide wheel (7) and the arc-shaped groove (22) are positioned on the same ring.
4. A capacitive sensing wire tension measuring device as defined in claim 1, wherein: the shielding cover is characterized in that a shielding shell (91) is arranged outside the fixed disc (1), a shielding cover (92) is arranged outside the rotating disc (2), the shielding shell (91) is connected with the shielding cover (92), and an arc-shaped hole (93) is formed in the shielding cover (92).
5. A capacitive sensing wire tension measuring device as defined in claim 1, wherein: a first shaft hole (51) is formed in one end of the connecting arm (5), a second key groove (52) is formed in the inner side wall of the first shaft hole (51), the first shaft hole (51) is fixedly arranged on the third step column (34), keys (53) are arranged in the second key groove (52) and the first key groove (36), a locking nut (55) is arranged on a threaded rod (35) above the first shaft hole (51), and the locking nut (55) is tightly abutted to the connecting arm (5); the other end of the connecting arm (5) is provided with a second shaft hole (54).
6. A capacitive sensing wire tension measuring device as defined in claim 1, wherein: the fixed guide wheel shaft (61) is arranged on the sliding block (23), the fixed guide wheel shaft (61) comprises a fixed guide wheel shaft threaded rod (62), the fixed guide wheel shaft threaded rod (62) is connected with a fixed guide wheel shaft hexagonal column (63), the fixed guide wheel shaft hexagonal column (63) is connected with a first fixed guide wheel shaft optical axis (64), the first fixed guide wheel shaft optical axis (64) is connected with a second fixed guide wheel shaft optical axis (65), and a fixed guide wheel shaft groove (66) is formed in the second fixed guide wheel shaft optical axis (65); the fixed guide wheel shaft threaded rod (62) is connected with the sliding block (23), the first fixed guide wheel shaft optical axis (64) passes through the second shaft hole (54) and then is connected with the connecting arm (5), the fixed guide wheel (4) is installed on the second fixed guide wheel shaft optical axis (65), and the fixed guide wheel shaft clamp spring (67) is installed in the fixed guide wheel shaft groove (66).
7. A capacitive sensing wire tension measuring device as defined in claim 1, wherein: the rotary disc (2) is provided with a first rotary guide wheel shaft (71), the first rotary guide wheel shaft (71) comprises a first rotary guide wheel shaft threaded rod (72), the first rotary guide wheel shaft threaded rod (72) is connected with a first rotary guide wheel shaft hexagonal column (73), the first rotary guide wheel shaft hexagonal column (73) is connected with a first rotary guide wheel shaft optical axis (74), and a first rotary guide wheel shaft groove (75) is formed in the first rotary guide wheel shaft optical axis (74); the first rotating guide wheel shaft threaded rod (72) is connected with the rotating disc (2), a first rotating guide wheel (6) is installed on the first rotating guide wheel shaft optical axis (74), and a first rotating guide wheel shaft clamp spring (76) is installed in the first rotating guide wheel shaft groove (75).
8. A capacitive sensing wire tension measuring device as defined in claim 1, wherein: the rotary disc (2) is provided with a second rotary guide wheel shaft (81), the second rotary guide wheel shaft (81) comprises a second rotary guide wheel shaft threaded rod (82), the second rotary guide wheel shaft threaded rod (82) is connected with a second rotary guide wheel shaft hexagonal column (83), the second rotary guide wheel shaft hexagonal column (83) is connected with a second rotary guide wheel shaft optical axis (84), and a second rotary guide wheel shaft groove (85) is formed in the second rotary guide wheel shaft optical axis (84); the second rotary guide wheel shaft threaded rod (82) is connected with the rotary disc (2), a second rotary guide wheel (7) is installed on the second rotary guide wheel shaft optical axis (84), and a second rotary guide wheel shaft clamp spring (86) is installed in the second rotary guide wheel shaft groove (85).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710586141.XA CN107314850B (en) | 2017-07-18 | 2017-07-18 | Capacitive induction type silk thread tension measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710586141.XA CN107314850B (en) | 2017-07-18 | 2017-07-18 | Capacitive induction type silk thread tension measuring device |
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| CN107314850A CN107314850A (en) | 2017-11-03 |
| CN107314850B true CN107314850B (en) | 2023-04-25 |
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| CN109238540B (en) * | 2018-09-20 | 2020-12-11 | 哈尔滨工业大学 | Integrated measuring force device of fixed pulley |
| CN118007310A (en) * | 2024-04-09 | 2024-05-10 | 泉州市弘扬精密机械有限公司 | Knitting circular knitting machine with adjustable silk thread tension |
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