Encoder structure with wire harness protection

Abstract

The utility model relates to the related technical field of encoders, in particular to an encoder structure with wire harness protection, which comprises an encoder, and a protection mechanism is arranged on the surface of a connecting end. According to the encoder structure with the wire harness protection function, when the wire harness protection function is installed, the threaded block of the connecting end is matched with the threaded groove of the connecting sleeve, the sleeve is rotated to be screwed into the connecting end, the protective sleeve gets close accordingly, the wire harness is contained in the protection range, after threaded connection is completed, the waterproof connector is tightened to form a waterproof barrier, and then the fixing device is operated; after the connecting sleeve is preliminarily connected, the spring enables the fixing rod to partially extend out of the positioning hole, when the sleeve rotates to a proper position, the fixing rod rapidly slides into the fixing hole through the conical guide head under the action of the spring to prevent the sleeve from displacing and being detached, the stop block is pushed to enable the fixing rod to retreat, and the protection mechanism and the connecting and fixing device can be easily taken down to be matched. The protection mechanism is ensured to be stably installed and is convenient to disassemble, and a guarantee is provided for long-term stable protection of the wire harness.

Description

Technical Field

[0001] This utility model relates to the field of encoder-related technology, and in particular to an encoder structure with wire harness protection. Background Technology

[0002] An encoder is a device that encodes and converts signals or data into a signal form that can be used for communication, transmission, and storage. Based on their working principle, common encoders can be divided into incremental encoders and absolute encoders. Incremental encoders determine position changes by measuring the number of pulses generated by the rotation or linear motion of a shaft. They have a code disk with a light-transmitting slit mounted on the shaft, along with a corresponding light source and photosensitive element. When the code disk rotates with the shaft, the light emitted by the light source passes through the slit and is received by the photosensitive element, generating pulse signals. One pulse is generated for every fixed rotation angle. By counting the pulses, the rotation angle or linear displacement of the shaft can be calculated. Incremental encoders have a simple structure and low cost, and are often used in applications where position accuracy requirements are not particularly high, such as measuring the speed of ordinary motors and monitoring the position of material conveying in automated production lines. Absolute encoders, on the other hand, can directly output a digital code corresponding to the position of the shaft. Their code disk has multiple concentric code tracks, each with a different coding pattern. The combination of these coding patterns represents the absolute position of the shaft. Regardless of the equipment's state, as long as the encoder's output code is read, the shaft's position can be immediately determined. Absolute encoders do not require cumulative counting like incremental encoders, allowing them to accurately acquire the current position even after power loss and restoration, preventing position loss. They are commonly used in applications with extremely high positional accuracy requirements, such as tool positioning in CNC machine tools and joint position control in robots. In terms of application areas, encoders are widely used in industrial automation, transportation, aerospace, and many other fields. In industrial automation, encoders are used to precisely control the speed and position of motors, ensuring that equipment on the production line operates according to predetermined programs. For example, on automated production lines in automobile manufacturing, encoders can precisely control the position of robotic arms, enabling precise assembly of parts. In the transportation sector, encoders are used to measure vehicle speed, wheel rotation angles, etc., providing crucial data for vehicle control systems and ensuring safe vehicle operation. In the aerospace field, encoders are used in critical components such as aircraft attitude control and navigation systems, playing a vital role in the precise flight and safe landing of aircraft. To protect the encoder's wiring harness from breakage due to external factors, an encoder structure with wiring harness protection is particularly needed.

[0003] However, existing encoders are susceptible to external forces such as pulling and bending during daily use. Frequent external forces can cause the internal wires of the harness to break or make poor contact. At the same time, the unprotected harness is exposed to complex environments for a long time and is susceptible to corrosion from dust, moisture and chemicals. In humid environments, the insulation layer of the harness will gradually be damaged, causing problems such as short circuits. In industrial environments with corrosive chemicals, the metal wires of the harness will be corroded, increasing resistance and affecting signal transmission quality. This will not only increase the maintenance cost of the equipment, but may also lead to equipment downtime and affect production efficiency. For example, in chemical production workshops, unprotected encoder harnesses may have their service life shortened from several years to several months due to corrosion from chemical gases. Utility Model Content

[0004] The purpose of this utility model is to provide an encoder structure with wire harness protection, so as to solve the problem of the existing encoder structure with wire harness protection mentioned in the background art. It has a protection mechanism to protect the wire harness and solves the problem that the wire harness of the existing encoder is easily broken due to external force.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an encoder structure with wire harness protection, comprising an encoder, one end of which is fixedly connected to a connection end, a wire harness being fixedly connected inside the connection end, and a protection mechanism being provided on the surface of the connection end;

[0006] The protection mechanism includes a connecting device and a fixing device, wherein the fixing device secures the protection mechanism based on the connecting device;

[0007] The fixing device includes a positioning hole, a spring, a stop block, a fixing rod, and a fixing hole. The surface of the connecting end is provided with a positioning hole. A spring is fixedly connected to the outside of the positioning hole. A stop block is fixedly connected to one end of the spring. A fixing rod is fixedly connected to the inner end of the stop block. The surface of the connecting device is provided with a fixing hole. The positioning hole and the fixing hole are positioned correspondingly.

[0008] Preferably, the connecting device includes a threaded block, a connecting sleeve, a threaded groove, a protective sleeve, and a waterproof connector. The threaded block is fixedly connected to the inside of the connecting end, and the connecting sleeve is connected to the inside of the connecting end. The surface of the connecting sleeve is provided with a threaded groove. One end of the connecting sleeve is fixedly connected with a protective sleeve, and one end of the protective sleeve is connected with a waterproof connector. A fixing hole is provided on the side of the threaded groove.

[0009] Preferably, the threaded block corresponds to the threaded groove, and the outer wall dimension of the threaded block matches the inner wall dimension of the threaded groove.

[0010] Preferably, the protective sleeve is made of high-strength, corrosion-resistant rubber material, and has a multi-layer fiber-reinforced structure inside, which can not only effectively resist external forces such as pulling and bending, but also prevent chemical corrosion and extend the service life of the wire harness.

[0011] Preferably, the waterproof connector uses a combination of sealing rings and threaded fastening to ensure that water cannot enter the protective sleeve and contact the wiring harness in humid environments or under conditions of water splashing, thereby further improving the waterproof performance of the wiring harness and ensuring the stability of signal transmission.

[0012] Preferably, the position of the positioning hole corresponds to the position of the fixing hole, and the outer wall dimension of the fixing rod matches the inner wall dimension of both the positioning hole and the fixing hole.

[0013] Compared with existing technologies, the beneficial effects of this utility model are as follows: This encoder structure with wire harness protection, through the setting of a connecting device and a fixing device, allows for easy connection of the wire harness when protective installation is required. First, a connecting sleeve is used to connect to the connecting end. The threaded block inside the connecting end cooperates with the threaded groove on the surface of the connecting sleeve. By rotating the connecting sleeve, it is slowly screwed in along the thread of the threaded block. This threaded connection method is not only simple to operate but also provides a stable connection foundation. As the connecting sleeve is screwed in, the protective sleeve fixed at one end also approaches the connecting end, gradually bringing the wire harness into the protection range. The protective sleeve is made of high-strength, corrosion-resistant rubber material, and the internal... The multi-layer fiber-reinforced structure gives it excellent resistance to external forces, effectively resisting pulling and bending that may occur during daily use, ensuring the integrity of the wire harness. After the connecting sleeve and the connecting end are connected by threads, the waterproof connector plays a crucial role. It uses a combination of a sealing ring and threaded fastening. When the protective sleeve is connected to external equipment or other connecting components, tightening the threaded part on the waterproof connector ensures that the sealing ring fits tightly against the gap at the connection point, thus forming a tight waterproof barrier. Whether in a humid environment or under conditions of water splashing, it effectively prevents water from entering the protective sleeve and contacting the wire harness, greatly improving the waterproof performance of the wire harness and ensuring signal transmission. To ensure stability, after the connecting sleeve is initially connected to the connecting end via threads, the installer will focus on operating the fixing device. At this time, the spring is in its natural extension state, providing a push force to the stop block outward of the positioning hole, causing the fixing rod to extend out of the positioning hole. When the connecting sleeve rotates to the appropriate position and the fixing hole and positioning hole are roughly aligned, the stop block, under the elastic force of the spring, drives the fixing rod to move quickly towards the fixing hole. Because the end of the fixing rod is designed with a tapered guide head, it can easily slide into the fixing hole until it is fully engaged. This tight fit effectively prevents the connecting sleeve from rotating relative to the other end during use due to vibration, external pulling, or other factors. Even when subjected to vibrations from different directions during equipment operation, the spring maintains its pushing force on the stop block, ensuring that the fixing rod is tightly embedded in the fixing hole and maintaining a stable connection between the protection mechanism and the connection end. When the protection mechanism needs to be disassembled, maintained, or replaced, the operator only needs to push the stop block towards the positioning hole to overcome the spring force and allow the fixing rod to exit from the fixing hole. At this time, the connecting sleeve can be easily rotated to remove the entire protection mechanism from the connection end. The operation process is simple and efficient. The entire fixing device, through its ingenious mechanical structure design, achieves stable installation and convenient disassembly of the protection mechanism, providing a strong guarantee for the long-term stable protection of the encoder wiring harness. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the left side view of the appearance of this utility model;

[0015] Figure 2 This is a schematic diagram of the right side view of the appearance of this utility model;

[0016] Figure 3 This is a schematic diagram of the protective mechanism structure of this utility model;

[0017] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0018] Figure 5 This utility model Figure 3 Enlarged structural diagram at point B.

[0019] In the diagram: 1. Encoder; 2. Connecting end; 3. Wiring harness; 4. Protection mechanism; 401. Threaded block; 402. Connecting sleeve; 403. Threaded groove; 404. Protective sleeve; 405. Waterproof connector; 406. Positioning hole; 407. Spring; 408. Stop block; 409. Fixing rod; 410. Fixing hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 This utility model provides a technical solution: an encoder structure with wire harness protection, including an encoder 1, a connection end 2 fixedly connected to one end of the encoder 1, a wire harness 3 fixedly connected inside the connection end 2, and a protection mechanism 4 provided on the surface of the connection end 2; the protection mechanism 4 includes a connecting device and a fixing device, and the fixing device fixes the protection mechanism 4 based on the connecting device.

[0022] The fixing device includes a positioning hole 406, a spring 407, a stop block 408, a fixing rod 409, and a fixing hole 410. The surface of the connecting end 2 has a positioning hole 406. A spring 407 is fixedly connected to the outer side of the positioning hole 406. One end of the spring 407 is fixedly connected to the stop block 408. The inner end of the stop block 408 is fixedly connected to the fixing rod 409. The surface of the connecting device has a fixing hole 410. The positioning hole 406 and the fixing hole 410 correspond in position. Through the fixing device, when the connecting sleeve 402 passes through the screw... After the initial connection between the thread and the connecting end 2, the installer will shift their attention to the operation of the fixing device. At this time, the spring 407 is in a naturally extended state, which provides the stop 408 with a push force towards the outside of the positioning hole 406, causing the fixing rod 409 to partially extend out of the positioning hole 406. When the connecting sleeve 402 rotates to the appropriate position and the fixing hole 410 is roughly aligned with the positioning hole 406, under the elastic force of the spring 407, the stop 408 drives the fixing rod 409 to move quickly towards the fixing hole 410. The end of the 9-piece sleeve is designed with a tapered guide head, which allows it to easily slide into the fixing hole 410 until it is fully fitted. This tight fit effectively prevents the connecting sleeve 402 from rotating or shifting due to vibration, external force, or other factors during use. During equipment operation, even if subjected to vibration from different directions, the spring 407 always maintains the pushing force on the stop block 408, thereby ensuring that the fixing rod 409 is tightly embedded in the fixing hole 410 and maintaining a stable connection between the protection mechanism 4 and the connecting end 2. When it is necessary to disassemble, maintain, or replace the protection mechanism 4, the operator only needs to push the stop block 408 towards the positioning hole 406 to overcome the elastic force of the spring 407, so that the fixing rod 409 can be removed from the fixing hole 410. At this time, the connecting sleeve 402 can be easily rotated to remove the entire protection mechanism 4 from the connecting end 2. The operation process is simple and efficient. The entire fixing device, through its ingenious mechanical structure design, achieves stable installation and convenient disassembly of the protection mechanism, providing a strong guarantee for the long-term stable protection of the encoder harness.

[0023] Furthermore, the connecting device includes a threaded block 401, a connecting sleeve 402, a threaded groove 403, a protective sleeve 404, and a waterproof connector 405. The threaded block 401 is fixedly connected inside the connecting end 2, and the connecting sleeve 402 is also connected inside the connecting end 2. The surface of the connecting sleeve 402 has a threaded groove 403. One end of the connecting sleeve 402 is fixedly connected to the protective sleeve 404, and one end of the protective sleeve 404 is connected to the waterproof connector 405. A fixing hole 410 is provided on the side of the threaded groove 403. Through the arrangement of the connecting device... When protective installation of the wire harness is required, the connecting sleeve 402 is first connected to the connecting end 2. The threaded block 401 inside the connecting end 2 cooperates with the threaded groove 403 on the surface of the connecting sleeve 402. By rotating the connecting sleeve 402, it is slowly screwed in along the thread of the threaded block 401. This threaded connection method is not only easy to operate, but also provides a stable connection foundation. As the connecting sleeve 402 is screwed in, the protective sleeve 404 fixed at one end also moves closer to the connecting end 2, gradually bringing the wire harness 3 into the protection zone. The protective sleeve 404 is made of high-strength, corrosion-resistant rubber material. Its internal multi-layer fiber-reinforced structure gives it excellent resistance to external forces, effectively resisting pulling and bending that may occur during daily use, ensuring the integrity of the wire harness 3. After the connecting sleeve 402 and the connecting end 2 are connected by threads, the waterproof connector 405 plays an important role. It uses a combination of sealing rubber ring and threaded fastening. When the protective sleeve 404 is connected to external equipment or other connecting parts, tightening the threaded part on the waterproof connector 405 makes the sealing rubber ring fit tightly against the gap at the connection, thus forming a tight waterproof barrier. Whether in a humid environment or facing water splashes, it can effectively prevent water from entering the protective sleeve 404 and contacting the wire harness 3, greatly improving the waterproof performance of the wire harness 3 and ensuring the stability of signal transmission. The design of the entire connection device, from the stable connection to the realization of the protective function, lays a solid foundation for the subsequent installation of the fixing device and the all-round protection of the wire harness, ensuring that the encoder can operate stably in complex working environments.

[0024] Furthermore, the threaded block 401 corresponds to the threaded groove 403, and the outer wall size of the threaded block 401 matches the inner wall size of the threaded groove 403. Through the setting of the threaded block 401 and the threaded groove 403, a stable and reliable initial connection between the connecting sleeve 402 and the connecting end 2 is achieved. This precisely matched thread structure allows the connecting sleeve 402 to be smoothly screwed into the connecting end 2 during installation without jamming or misalignment. At the same time, the tight fit ensures the stability of the connection. During equipment operation, even if subjected to a certain degree of vibration or external force, the connecting sleeve 402 will not easily loosen, laying a solid foundation for the effective operation of the subsequent fixing device and ensuring that the entire protection mechanism and the encoder connection end always maintain a tight connection.

[0025] Furthermore, the protective sleeve 404 is made of high-strength, corrosion-resistant rubber material with a multi-layer fiber-reinforced structure inside. This not only effectively resists external forces such as pulling and bending but also prevents chemical corrosion, extending the service life of the wire harness 3. The protective sleeve 404 creates a robust protective barrier for the wire harness 3. In practical applications, whether in industrial production sites where the wire harness may be accidentally pulled or in chemical environments where it faces the threat of chemical corrosion, the protective sleeve 404 can effectively prevent wire breakage and short circuits caused by external forces, as well as insulation degradation due to chemical corrosion. This ensures stable and reliable encoder signal transmission, reducing equipment downtime and maintenance costs caused by wire harness failures.

[0026] Furthermore, the waterproof connector 405 employs a combination of sealing rings and threaded fastening to ensure that water cannot enter the protective sleeve 404 and contact the wiring harness 3 in humid environments or under conditions of water splashing. This further improves the waterproof performance of the wiring harness 3 and ensures the stability of signal transmission. The waterproof connector 405 significantly expands the range of environments in which the encoder can be used. In outdoor equipment, underwater equipment, or humid workshop environments, the waterproof connector 405 can effectively prevent moisture intrusion. Once moisture enters the protective sleeve 404 and contacts the wiring harness 3, it may cause serious problems such as short circuits and signal interference. The design of the waterproof connector 405 ensures that even in harsh humid environments, the wiring harness 3 can remain dry, maintain good electrical performance, ensure stable encoder operation, and provide reliable protection for the normal operation of the equipment.

[0027] Furthermore, the position of the positioning hole 406 corresponds to the position of the fixing hole 410, and the outer wall dimension of the fixing rod 409 matches the inner wall dimension of both the positioning hole 406 and the fixing hole 410. Through the arrangement of the positioning block 406, the fixing rod 409, and the fixing hole 410, precise positioning and secure locking between the protection mechanism 4 and the connecting end 2 are achieved. During installation, when the connecting sleeve 402 rotates to the appropriate position, the positioning hole 406 and the fixing hole 410 can be quickly aligned. Under the action of the spring 407, the fixing rod 409 is precisely inserted into the fixing hole 410. The close fit ensures that the fixing rod 409 will not wobble in the hole, effectively preventing displacement or rotation of the protection mechanism 4 during use. During disassembly, the fixing rod 409 can also be easily pushed out of the fixing hole 410. This design ensures both the stability of the connection and the convenience of operation, providing great convenience for the installation and maintenance of the encoder harness protection mechanism.

[0028] Working Principle: Encoder 1 monitors physical quantities such as shaft rotation or linear displacement in real time and converts this information into corresponding electrical signals. The generated electrical signals are transmitted to connection terminal 2 through internal circuitry, and then transmitted to external devices along the wiring harness 3. Throughout this process, the protection mechanism 4 safeguards the safety of the wiring harness 3 and the stability of signal transmission. The protective sleeve 404 in the connection device, with its high-strength, corrosion-resistant rubber material and multi-layer fiber-reinforced structure, resists various physical damages from the outside world. In industrial production sites, if an object accidentally collides with the wiring harness, or if the wiring harness is accidentally pulled or bent, the protective sleeve 404 can effectively buffer the external force. To prevent damage to the internal wires of wire harness 3 and ensure the continuity of signal transmission, the protective sleeve 404 prevents chemical corrosion of wire harness 3 in environments containing chemicals, avoiding short circuits and leakage caused by decreased insulation performance. This ensures accurate signal transmission from encoder 1. The waterproof connector 405 plays a crucial role in humid environments. When the encoder is used outdoors, underwater, or in humid workshops, the sealing ring and threaded fastening design of the waterproof connector 405 effectively prevents moisture from entering the protective sleeve 404. This avoids short circuits and signal interference caused by moisture contact with wire harness 3, maintaining the stable electrical performance of wire harness 3. The fixing device ensures that the encoder output signal can be stably transmitted to external devices, ensuring the reliable operation of the entire system. The fixing device further guarantees a secure connection between the protection mechanism 4 and the connection end 2. During equipment operation, regardless of the direction of vibration, the spring 407 always provides a stable thrust to the stop block 408, causing the fixing rod 409 to be tightly embedded in the fixing hole 410, preventing displacement or rotation of the protection mechanism 4. This not only ensures the continuous and effective protection of the wiring harness 3 by the protective sleeve 404 and the waterproof connector 405, but also maintains the integrity of the entire encoder structure, providing reliable physical support for the normal operation of the encoder. When maintaining, upgrading, or replacing parts of the encoder, the fixing device can be easily operated. Pushing the stop 408 overcomes the elastic force of the spring 407, causing the fixing rod 409 to exit from the fixing hole 410. Then, rotate the connecting sleeve 402 to remove the protection mechanism 4 from the connecting end 2, making it convenient to inspect the wiring harness 3 or the inside of the encoder 1. After maintenance, the protection mechanism 4 can be quickly and accurately reinstalled by following the reverse steps, ensuring that the encoder can quickly return to normal working condition and continue to stably provide accurate position, speed, and other signal feedback to the equipment system. This completes the usage process of an encoder structure with wiring harness protection.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An encoder structure with wiring harness protection, comprising an encoder (1), characterized in that: One end of the encoder (1) is fixedly connected with a connecting end (2), the inside of the connecting end (2) is fixedly connected with a wire harness (3), and the surface of the connecting end (2) is provided with a protection mechanism (4). The protection mechanism (4) comprises a connecting device and a fixing device, and the fixing device fixes the protection mechanism (4) on the basis of the connecting device. The fixing device comprises a positioning hole (406), a spring (407), a stop block (408), a fixing rod (409) and a fixing hole (410), the surface of the connecting end (2) is provided with the positioning hole (406), the outer side of the positioning hole (406) is fixedly connected with the spring (407), one end of the spring (407) is fixedly connected with the stop block (408), the inner end of the stop block (408) is fixedly connected with the fixing rod (409), and the surface of the connecting device is provided with the fixing hole (410), and the positioning hole (406) and the fixing hole (410) are in position correspondence.

2. An encoder structure with wiring harness protection according to claim 1, characterized in that: The connecting device comprises a threaded block (401), a connecting sleeve (402), a threaded groove (403), a protective sleeve (404) and a waterproof joint (405), the inside of the connecting end (2) is fixedly connected with the threaded block (401), the inside of the connecting end (2) is connected with the connecting sleeve (402), the surface of the connecting sleeve (402) is provided with the threaded groove (403), one end of the connecting sleeve (402) is fixedly connected with the protective sleeve (404), one end of the protective sleeve (404) is connected with the waterproof joint (405), and the side of the threaded groove (403) is provided with the fixing hole (410).

3. An encoder structure with wiring harness protection according to claim 2, characterized in that: The threaded block (401) corresponds to the threaded groove (403), and the outer wall size of the threaded block (401) is consistent with the inner wall size of the threaded groove (403).

4. The encoder structure with wiring harness protection of claim 2, wherein: The protective sleeve (404) is made of high-strength and corrosion-resistant rubber material, and is provided with a multi-layer fiber reinforced structure inside, which can not only effectively resist external pulling, bending and other external forces, but also prevent chemical erosion and prolong the service life of the wire harness (3).

5. The encoder structure with wiring harness protection of claim 2, wherein: The waterproof joint (405) adopts the combination of sealing rubber ring and threaded fastening, so that water cannot enter the protective sleeve (404) to contact the wire harness (3) in a humid environment or a working condition with water splashing, further improving the waterproof performance of the wire harness (3) and ensuring the stability of signal transmission.

6. The encoder structure with wiring harness protection of claim 1, wherein: The position of the positioning hole (406) corresponds to the position of the fixing hole (410), and the outer wall size of the fixing rod (409) is consistent with the inner wall size of the positioning hole (406) and the fixing hole (410).

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