Pull rope encoder with zero point
By using a combination of gears, tooth plates, sliding blocks, return springs and connecting plates in the rope pull encoder, automatic zero-point calibration of the encoder is achieved, solving the problem of the need for additional reset devices in the prior art, improving measurement accuracy and stability, and saving energy consumption.
Patent Information
- Application Number
- CN202421452436.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-06-24
AI Technical Summary
Existing drawstring encoders require additional reset devices or sensors to ensure that the encoder is in the correct initial position before each use, adding operational complexity and energy consumption.
A self-contained zero-point draw rope encoder is designed, which uses a combination of gears, tooth plates, sliding blocks, return springs and connecting plates to automatically move the tooth plate back to its initial position through the reaction force of the return spring, realizing automatic zero-point calibration of the signal sensor.
This design simplifies the design of the encoder, avoids the use of additional reset devices or sensors, improves measurement accuracy and stability, and saves energy consumption.
Smart Images
Figure CN222652252U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of draw-wire encoders, in particular to a draw-wire encoder with a self-contained zero point. Background Art
[0002] The draw wire displacement sensor is also called draw wire displacement sensor, draw wire sensor, draw wire electronic ruler, draw wire encoder, etc. It is a sophisticated integration of linear displacement sensor in structure, which fully combines the advantages of angle sensor and linear displacement sensor. The draw wire displacement sensor is mainly used in linear guide system, which can realize low-cost high-precision measurement requirements and has a wide range of applications.
[0003] After exploration and analysis, the following shortcomings exist in actual use:
[0004] The rope encoders commonly used in the market currently require additional resetting devices or sensors to ensure that the encoder is in the correct initial position before each use, requiring the user to perform additional operations, which affects the use of the operators.
[0005] In summary, the present application now proposes a self-contained zero-point draw-wire encoder to solve the above-mentioned problems. Utility Model Content
[0006] The utility model aims to provide a self-contained zero-point draw-wire encoder, which can solve the problem of requiring an additional reset device or sensor to ensure that the encoder is in a correct initial position before each use.
[0007] To achieve the above purpose, the utility model provides the following technical solution: a self-contained zero-point pull-wire encoder, comprising:
[0008] An outer box body, with a mounting shell fixedly mounted on the top of the outer box body;
[0009] The zeroing component is arranged on the outer box body, and the zeroing component includes a gear, a tooth plate, a sliding block, a reset spring and a connecting plate. The tooth plate is meshingly installed on the rear side of the gear, and the connecting plate is fixedly installed on one side of the tooth plate. The sliding blocks are fixedly installed on the top and bottom of the connecting plate, and the reset spring is fixedly installed on one side of the sliding block.
[0010] Preferably, a rotating column is rotatably mounted on the inner bottom of the outer box body for driving.
[0011] Preferably, a sleeve is fixedly mounted on the outer wall of the rotating column, and a pull rope is wound around the sleeve.
[0012] Preferably, the zeroing component also includes a fixed frame, two groups of fixed frames are fixedly installed on the inner wall of one side of the outer box body and are symmetrically distributed up and down, the sliding block is slidably installed inside the fixed frame, the other end of the reset spring is fixedly installed on the inner wall of one side of the fixed frame, and a damper is arranged inside the reset spring. Through the reaction force of the reset spring, when the pull rope is loosened, the reset spring will move the tooth plate back to the initial position, so that the signal sensor automatically returns to the zero position. This zero point calibration function ensures that the encoder is in a known starting position before each measurement, thereby improving the measurement accuracy and stability. The reaction force of the reset spring realizes the automatic reset function of the rope encoder, thereby simplifying the design of the encoder. No additional reset device or sensor is required to ensure that the encoder is in the correct initial position before each use, saving additional energy consumption.
[0013] Preferably, a transmission plate is fixedly installed on the top of the rotating column, an opening is opened on the top of the outer box body, a signal sensor is arranged in the opening, and the bottom of the signal sensor is rotatably installed with the top of the transmission plate. The signal sensor can convert the measured position information into a digital signal output, usually in the form of digital pulses or digital data.
[0014] Preferably, a connecting wire is fixedly mounted on the outer wall of the signal sensor, and the other end of the connecting wire extends to the outside of the mounting shell for connection with an external controller or computer.
[0015] Preferably, the tooth plate and the connecting plate are both located between the two sets of fixed frames, which can limit the movement of the tooth plate and avoid displacement during movement.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] The self-contained zero-point draw-wire encoder uses a gear, a tooth plate, a fixed frame, a sliding block, a reset spring and a connecting plate in coordination. Through the reaction force of the reset spring, when the draw wire is loosened, the reset spring moves the tooth plate back to the initial position, so that the signal sensor automatically returns to the zero point position. This zero-point calibration function ensures that the encoder is in a known starting position before each measurement, thereby improving the accuracy and stability of the measurement. The reaction force of the reset spring realizes the automatic reset function of the draw-wire encoder, thereby simplifying the design of the encoder. No additional reset device or sensor is required to ensure that the encoder is in the correct initial position before each use, thereby saving additional energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0019] Figure 1 It is a three-dimensional diagram of the utility model;
[0020] Figure 2 It is a three-dimensional cross-sectional view of the utility model;
[0021] Figure 3 It is a schematic diagram of the structure of the zeroing component of the utility model.
[0022] Figure numerals: 1. outer box body; 2. mounting shell; 3. rotating column; 4. sleeve; 5. pull rope; 6. gear; 7. tooth plate; 8. fixed frame; 9. sliding block; 10. reset spring; 11. connecting plate; 12. transmission plate; 13. signal sensor; 14. connecting line. DETAILED DESCRIPTION
[0023] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0024] See also Figure 1-3 The utility model provides a technical solution: a self-contained zero-point pull-wire encoder, comprising an outer box body 1 and a zeroing component, a mounting shell 2 is fixedly installed on the top of the outer box body 1, the zeroing component is arranged on the outer box body 1, the zeroing component comprises a gear 6, a tooth plate 7, a sliding block 9, a reset spring 10 and a connecting plate 11, the rear side of the gear 6 is meshingly installed with the tooth plate 7, one side of the tooth plate 7 is fixedly installed with the connecting plate 11, the top and bottom of the connecting plate 11 are fixedly installed with the sliding block 9, and one side of the sliding block 9 is fixedly installed with the reset spring 10.
[0025] Furthermore, a rotating column 3 is rotatably mounted on the inner bottom of the outer box body 1 for driving.
[0026] Furthermore, a sleeve 4 is fixedly installed on the outer wall of the rotating column 3 , and a pull rope 5 is wound around the sleeve 4 .
[0027] Furthermore, the zeroing component also includes a fixed frame 8. Two sets of fixed frames 8 are fixedly installed on the inner wall of one side of the outer box body 1 and are symmetrically distributed up and down. The sliding block 9 is slidably installed inside the fixed frame 8. The other end of the reset spring 10 is fixedly installed on the inner wall of one side of the fixed frame 8. A damper is arranged inside the reset spring 10. When the pull rope 5 is loosened, the reaction force of the reset spring 10 drives the sliding block 9 to slide inside the fixed frame 8, thereby driving the connecting plate 11 to push the tooth plate 7 to move to the right, which can drive the gear 6 to rotate in the opposite direction, thereby driving the rotating column 3 to rotate, so that the sleeve 4 pulls the pull rope 5. The rope 5 is wound up, and through the reaction force of the reset spring 10, when the rope 5 is loosened, the reset spring 10 will move the tooth plate 7 back to the initial position, so that the signal sensor 13 automatically returns to the zero position. This zero point calibration function ensures that the encoder is in a known starting position before each measurement, thereby improving the accuracy and stability of the measurement. The reaction force of the reset spring 10 realizes the automatic reset function of the rope encoder, thereby simplifying the design of the encoder. No additional reset device or sensor is required to ensure that the encoder is in the correct initial position before each use, saving additional energy consumption.
[0028] Furthermore, a transmission plate 12 is fixedly installed on the top of the rotating column 3, an opening is opened on the top of the outer box body 1, and a signal sensor 13 is arranged in the opening. The bottom of the signal sensor 13 is rotatably installed with the top of the transmission plate 12. The signal sensor 13 can convert the measured position information into a digital signal output, which is usually presented in the form of digital pulses or digital data.
[0029] Secondly, a connecting wire 14 is fixedly mounted on the outer wall of the signal sensor 13 , and the other end of the connecting wire 14 extends to the outside of the mounting shell 2 for connecting with an external controller or computer.
[0030] Secondly, the tooth plate 7 and the connecting plate 11 are both located between the two sets of fixed frames 8, which can limit the movement of the tooth plate 7 and prevent it from shifting during movement.
[0031] Working principle: when in use, hold the pull rod and pull the pull rope 5 to drive the rotating column 3 to rotate, so that the rotation of the rotating column 3 drives the gear 6 to rotate, and the rotation of the gear 6 drives the toothed plate 7 to move, so that the movement of the toothed plate 7 pushes the connecting plate 11 to move to the left side of the box, so that the connecting plate 11 drives the sliding block 9 to compress the reset spring 10, and at the same time, the rotating column 3 drives the transmission plate 12 to rotate, and the transmission plate 12 can convert the position change of the pull rope 5 into an electrical signal and transmit it to the signal sensor 13, and the signal sensor 13 converts the measured position information into a digital signal output. After use, when the pull rope 5 is loosened, the reaction force of the reset spring 10 drives the sliding block 9 to slide inside the fixed frame 8, thereby driving the connecting plate 11 to push the toothed plate 7 to move to the right, which can drive the gear 6 to rotate in the opposite direction, thereby driving the rotating column 3 to rotate, so that the sleeve 4 reels the pull rope 5, and at the same time drives the transmission plate 12 to rotate to the original position, so that the position can be easily reset to zero, so as to restart measurement or adjustment.
[0032] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.
Claims
1. A self-contained zero-point draw-wire encoder, characterized in that: include: An outer box body (1), a mounting shell (2) being fixedly mounted on the top of the outer box body (1); The zeroing component is arranged on the outer box body (1), and comprises a gear (6), a tooth plate (7), a sliding block (9), a reset spring (10) and a connecting plate (11). The rear side of the gear (6) is meshed with the tooth plate (7), one side of the tooth plate (7) is fixedly mounted with the connecting plate (11), the top and bottom of the connecting plate (11) are fixedly mounted with the sliding block (9), and one side of the sliding block (9) is fixedly mounted with the reset spring (10).
2. The self-contained zero-point wire-drawing encoder according to claim 1, characterized in that: A rotating column (3) is rotatably mounted on the inner bottom of the outer box body (1).
3. The self-contained zero-point wire-drawing encoder according to claim 2, characterized in that: A sleeve (4) is fixedly mounted on the outer wall of the rotating column (3), and a pull rope (5) is wound around the sleeve (4).
4. The self-contained zero-point wire-drawing encoder according to claim 3, characterized in that: The zeroing assembly also includes a fixed frame (8), two sets of fixed frames (8) are fixedly installed on the inner wall of one side of the outer box body (1) and are symmetrically distributed in the upper and lower directions, the sliding block (9) is slidably installed inside the fixed frame (8), the other end of the reset spring (10) is fixedly installed on the inner wall of one side of the fixed frame (8), and a damper is arranged inside the reset spring (10).
5. The self-contained zero-point wire-drawing encoder according to claim 4, characterized in that: A transmission plate (12) is fixedly mounted on the top of the rotating column (3); an opening is provided on the top of the outer box body (1); a signal sensor (13) is arranged in the opening; and the bottom of the signal sensor (13) is rotatably mounted on the top of the transmission plate (12).
6. The self-contained zero-point wire-drawing encoder according to claim 5, characterized in that: A connecting wire (14) is fixedly mounted on the outer wall of the signal sensor (13), and the other end of the connecting wire (14) extends to the outside of the mounting shell (2).
7. The self-contained zero-point wire-drawing encoder according to claim 6, characterized in that: The tooth plate (7) and the connecting plate (11) are both located between the two sets of fixed frames (8).