Double-shaft stay wire type encoder safety structure
By introducing buffering and wire-through mechanisms into the dual-axis wire-pull encoder, the problems of pull rope wear and dust entry are solved, and the stability and dust protection capabilities of the equipment are improved.
Patent Information
- Application Number
- CN202422075109.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-27
- Publication Date
- 2025-07-08
- Estimated Expiration
- 2034-08-27
AI Technical Summary
During use, the existing dual-axis wire-pull encoder has severe wear and easy to break. Dust enters the encoder and causes increased friction, affecting measurement accuracy and stability.
The design of the buffering mechanism and the wire-through mechanism is adopted, including the damping spring rod, the pad, the guide rod, the slider, the thrust spring and the mobile rod, reducing vibration transmission through two bufferings; the wire-through tube, cleaning cotton and balls prevent the wire rope from wear and dust entering.
It effectively reduces the wear of the encoder's internal structure by vibration, extends the service life of the wire rope, and improves the dustproof ability and use stability of the encoder.
Smart Images
Figure CN223076103U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of encoder safety structures, in particular to a double-axis wire-drawing encoder safety structure. Background Art
[0002] The draw-wire encoder is a device that adds a spring-loaded draw-wire box to the encoder to measure displacement. It converts linear displacement into rotational motion of the encoder shaft, fully combining the advantages of angle sensors and linear displacement sensors. It is a sensor with small installation size, compact structure, large measuring stroke and high precision. The stroke ranges from several hundred millimeters to more than ten meters.
[0003] In actual use, the existing dual-axis wire-drawn encoder has severe wear between the wire and the interface due to the frequent need to pull out or retract the wire. Long-term use may cause the wire to break. In addition, the extended wire rope will carry dust, which will be brought into the encoder when it retracts, causing increased friction and wear between the internal structures. Vibrations in the environment during storage and operation may also cause inaccurate measurements of the displacement sensor.
[0004] Therefore, in view of this, the shortcomings of the existing structure are studied and improved, and a dual-axis wire-drawing encoder safety structure is proposed. Utility Model Content
[0005] The utility model aims to provide a double-axis wire-drawing encoder safety structure to solve the problems raised in the above-mentioned background technology.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dual-axis wire-pull encoder safety structure, including a wire pull box, an encoder body is fixedly installed in the middle of the upper surface of the wire pull box, mounting feet are fixedly provided at the four corners of the lower surface of the wire pull box, and the mounting feet are arranged in an "L" shape. A buffer mechanism is arranged in the middle of the lower surface of the wire pull box, a wire passing mechanism is installed on the front side of the surface of the wire pull box, a wire pull head is attached to the front side of the wire passing mechanism, and the rear side of the surface of the wire pull head is connected to the inside of the wire pull box by passing the wire passing mechanism through a steel wire rope.
[0007] Preferably, the buffer mechanism comprises a damping spring rod fixedly mounted on the lower surface of the wire draw box, and the lower end of the damping spring rod is fixedly mounted with the same pad.
[0008] Preferably, the buffer mechanism further comprises a guide rod fixedly installed inside the upper surface of the pad, and sliders are slidably provided on both left and right sides of the surface of the guide rod.
[0009] Preferably, the buffer mechanism further includes a thrust spring sleeved on the opposite side of the surface of the slider and fixedly installed on the outer side of the guide rod. The end of the thrust spring is fixedly connected to the inner wall of the backing plate. The upper end of the slider is rotatably arranged on the movable rod, and the upper ends of the two corresponding movable rods on the left and right are fixedly connected to the lower surface of the wire drawing box by the same rotating shaft seat.
[0010] Preferably, the wire passing mechanism includes a wire passing tube fixedly installed on the front side of the surface of the wire drawing box, and a cleaning cotton is fixedly arranged in the middle of the inner surface of the wire passing tube.
[0011] Preferably, the wire passing mechanism further includes fixing rings fixedly installed at the front and rear ends of the inner surface of the wire passing tube, and balls are evenly distributed and rotatably arranged on the inner side surfaces of the fixing rings.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. Through the setting of the buffer mechanism, damping spring rod, backing plate, guide rod, slider, thrust spring and movable rod, the present utility model can greatly reduce the transmission of vibration through two-stage buffering, avoid the loosening of the precision structure inside the encoder caused by vibration, and thus improve the stability and safety of equipment use;
[0014] 2. Through the setting of the wire passing mechanism, wire passing tube, cleaning cotton, fixing ring and ball, when pulling the wire drawing head to extend the steel wire rope, the steel wire rope first contacts the balls at the front and rear end parts of the wire passing tube, that is, no matter at what angle the steel wire rope is pulled, it can roll friction with the balls, avoiding the wear of the steel wire rope and prolonging the service life. At the same time, when the steel wire rope contracts, it will pass through the cleaning cotton. The cleaning cotton fits on the surface of the steel wire rope to wipe the steel wire rope, which can clean the dust adhered to the surface of the steel wire rope in the outside world, thus preventing the dust from entering the equipment interior along with the steel wire rope and improving the dust-proof ability of the encoder. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic diagram of the overall structure of the present utility model;
[0016] Figure 2 is a schematic diagram of the structure of the buffer mechanism of the present utility model;
[0017] Figure 3 is a schematic cross-sectional view of the wire passing mechanism of the present utility model.
[0018] In the figure: 1, wire drawing box; 2, encoder main body; 3, mounting foot; 4, buffer mechanism; 401, damping spring rod; 402, backing plate; 403, guide rod; 404, slider; 405, thrust spring; 406, movable rod; 5, wire passing mechanism; 501, wire passing tube; 502, cleaning cotton; 503, fixing ring; 504, ball; 6, wire drawing head. Detailed implementation mode
[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0020] As Figure 1 - Figure 2 shown, a double-axis wire-pulling type encoder safety structure includes a wire-pulling box 1. The middle part of the upper surface of the wire-pulling box 1 is fixedly installed with an encoder main body 2. Installation feet 3 are fixedly arranged at the four corners of the lower surface of the wire-pulling box 1. The installation feet 3 are set in an "L" shape. A buffer mechanism 4 is arranged in the middle of the lower surface of the wire-pulling box 1. A wire-passing mechanism 5 is installed on the front side of the surface of the wire-pulling box 1. A wire-pulling head 6 is attached to the front side of the wire-passing mechanism 5. The rear side of the surface of the wire-pulling head 6 is connected to the inside of the wire-pulling box 1 through a steel wire rope passing through the wire-passing mechanism 5.
[0021] By adopting the above technical solution, the installation feet 3 can lift the entire device by a certain distance for assembly, giving the buffer mechanism 4 a working space, and the wire-pulling head 6 can be used to pull out the extension of the steel wire rope.
[0022] Further, the buffer mechanism 4 includes a damping spring rod 401 fixedly installed on the lower surface of the wire-pulling box 1, and the same backing plate 402 is fixedly installed at the lower end of the damping spring rod 401;
[0023] The damping spring rod 401 is composed of a damper and a telescopic spring, and the lower surface of the backing plate 402 is on the same horizontal plane as the lower surface of the installation feet 3.
[0024] By adopting the above technical solution, the damper can buffer the vibration and prevent the telescopic spring from oscillating; the backing plate 402 can be attached to the surface of the installation part to effectively absorb and transmit the vibration force.
[0025] Further, the buffer mechanism 4 further includes a guide rod 403 fixedly installed inside the upper surface of the backing plate 402, and sliders 404 are slidably arranged on the left and right sides of the surface of the guide rod 403.
[0026] By adopting the above technical solution, the guide rod 403 makes the movement of the slider 404 more stable.
[0027] Further, the buffer mechanism 4 further includes a thrust spring 405 sleeved on the surface of the slider 404 on the opposite side and fixedly installed on the outer side of the guide rod 403. The end of the thrust spring 405 is fixedly connected to the inner wall of the backing plate 402. The upper end of the slider 404 is rotatably arranged on the movable rod 406, and the upper ends of the two movable rods 406 corresponding to the left and right are fixedly and rotatably connected to the lower surface of the wire drawing box 1 through the same rotating shaft seat.
[0028] By adopting the above technical solution, when the backing plate 402 moves upward, the movable rod 406 can push the slider 404 to slide to both sides, thereby squeezing the thrust spring 405, causing the thrust spring 405 to generate an elastic reaction force. The reaction elastic force is transmitted in the reverse direction and interacts with the vibration force, thereby buffering the vibration again.
[0029] As Figure 1 and Figure 3 shown, the wire passing mechanism 5 includes a wire passing pipe 501 fixedly installed on the front side of the surface of the wire drawing box 1. A cleaning cotton 502 is fixedly arranged in the middle of the inner surface of the wire passing pipe 501;
[0030] The wire passing pipe 501 is internally connected to the wire drawing box 1.
[0031] By adopting the above technical solution, when the steel wire rope contracts, it will pass through the cleaning cotton 502. By using the cleaning cotton 502 to fit the surface of the steel wire rope, the steel wire rope can be wiped, and the dust adhered to the surface of the steel wire rope in the outside world can be cleaned.
[0032] Further, the wire passing mechanism 5 further includes fixing rings 503 fixedly installed at the front and rear ends of the inner surface of the wire passing pipe 501. Ball bearings 504 are evenly distributed and rotatably arranged on the inner side surfaces of the fixing rings 503;
[0033] The steel wire rope at the rear side of the wire drawing head 6 passes through the middle parts of the fixing ring 503 and the cleaning cotton 502.
[0034] By adopting the above technical solution, at the front and rear end parts of the wire passing pipe 501, the steel wire rope preferentially contacts the ball bearings 504. That is, no matter at what angle the steel wire rope is pulled, it can roll-friction with the ball bearings 504, avoiding wear of the steel wire rope.
[0035] Working principle: When using this dual-axis wire-pulling type encoder safety structure, first, when pulling the wire-pulling head 6 to extend the wire rope, the wire rope first contacts the ball 504 at the front and rear ends of the wire conduit 501. That is, no matter at what angle the wire rope is pulled, it can have rolling friction with the ball 504, avoiding wear of the wire rope and extending its service life. At the same time, when the wire rope contracts, it will pass through the cleaning cotton 502. By using the cleaning cotton 502 to fit the surface of the wire rope, the wire rope is wiped, which can clean the dust adhering to the surface of the wire rope in the outside world, thereby preventing the dust from entering the equipment interior along with the wire rope and improving the dust-proof ability of the encoder. During the installation and use of this encoder, the vibration on the surface of the installation part will be transmitted to the backing plate 402, causing the backing plate 402 to move upward. When moving, it will squeeze the damping spring rod 401 to buffer the vibration. At the same time, it will also use the movable rod 406 to push the slider 404 to move along the guiding rod 403, squeezing the thrust spring 405. The thrust spring 405 uses its own elastic force to push the slider 404 in the opposite direction, thereby buffering the vibration force for the second time. It can greatly reduce the transmission of vibration through two buffers, avoiding the loosening of the precision structure inside the encoder caused by vibration. This is the working principle of this dual-axis wire-pulling type encoder safety structure.
Claims
1. A safety structure of a biaxial wire-pulling encoder, including a wire-pulling box (1), characterized in that, In the middle of the upper surface of the wire drawing box (1), an encoder main body (2) is fixedly installed. At the four corners of the lower surface of the wire drawing box (1), mounting feet (3) are fixedly arranged. The mounting feet (3) are arranged in an "L" shape. In the middle of the lower surface of the wire drawing box (1), a buffer mechanism (4) is arranged. On the front side of the surface of the wire drawing box (1), a wire passing mechanism (5) is installed. A wire drawing head (6) is attached to the front side of the wire passing mechanism (5). The rear side of the surface of the wire drawing head (6) is connected to the inside of the wire drawing box (1) through a steel wire rope passing through the wire passing mechanism (5).
2. The safety structure of a biaxial wire-pulling encoder according to claim 1, characterized in that, The buffer mechanism (4) includes a damping spring rod (401) fixedly installed on the lower surface of the wire drawing box (1). The lower end of the damping spring rod (401) is fixedly installed with the same backing plate (402).
3. A dual-axis wire-pulling type encoder safety structure according to claim 1, characterized in that The buffer mechanism (4) further includes a guide rod (403) fixedly installed inside the upper surface of the backing plate (402). On the left and right sides of the surface of the guide rod (403), sliding blocks (404) are slidably arranged.
4. A double-axis wire-pulling encoder safety structure according to claim 1, characterized in that The buffer mechanism (4) further includes a thrust spring (405) sleeved on the opposite sides of the surface of the sliding block (404) and fixedly installed on the outer side of the guide rod (403). The end of the thrust spring (405) is fixedly connected to the inner wall of the backing plate (402). The upper end of the sliding block (404) is rotatably arranged on a movable rod (406). The upper ends of the two corresponding movable rods (406) on the left and right are rotatably connected to a fixed point on the lower surface of the wire drawing box (1) through the same rotating shaft seat.
5. A dual-axis wire-pulling encoder safety structure according to claim 1, characterized in that, The wire passing mechanism (5) includes a wire passing pipe (501) fixedly installed on the front side of the surface of the wire drawing box (1). In the middle of the inner surface of the wire passing pipe (501), a cleaning cotton (502) is fixedly arranged.
6. The safety structure of a dual-axis wire-pulling encoder according to claim 1, characterized in that, The wire passing mechanism (5) further includes fixed rings (503) fixedly installed at the front and rear ends of the inner surface of the wire passing pipe (501). Inside the inner side of the fixed ring (503), balls (504) are evenly distributed and rotatably arranged.