A fixing device for stable operation of an incremental rotary encoder

Abstract

This utility model relates to a fixing device for stable operation of an incremental rotary encoder, belonging to the field of electrical equipment and electrical engineering technology. It includes a tubular support frame, inside which a flexible coupling is rotatably fitted. The two ends of the flexible coupling are connected to a motor and a rotary encoder, respectively. A fixing component is also fitted onto the outer surface of the tubular support frame. This utility model, through the cooperation of the tubular support frame and the flexible coupling, can effectively reduce the impact of vibration generated during motor operation on the encoder, ensuring stable and accurate signal output from the encoder. Simultaneously, the design of the fixing component makes the entire device more stable and reliable during installation and use, greatly improving the service life and performance of the equipment. Furthermore, the device has a simple structure, is easy to install, and has high practicality and promotional value.

Description

Technical Field

[0001] This utility model relates to a fixing device for stable operation of an incremental rotary encoder, belonging to the field of electrical equipment and electrical engineering technology. Background Technology

[0002] The RTO system is a device used to treat process exhaust gas. When treating process exhaust gas, air and exhaust gas are first fully mixed, and then enter the furnace through a rotary valve at the bottom of the furnace body. The rotary valve has 12 chambers, which are controlled by a time-programmed motor. It rotates 30 degrees every 15 seconds. Every 30 degrees of rotation, the direction of the furnace body's air inlet, outlet and sealing chamber is switched. In addition, a position switch detects its position every revolution to ensure accurate operation.

[0003] The heat exchange chamber in the center of the RTO furnace is also divided into 12 chambers. In a static state, each heat exchange chamber is connected to one chamber of a rotary valve. The rotation of the rotary valve causes the gas entering each heat exchange chamber to change in a regular pattern. The 30-degree rotation of the rotary valve every 15 seconds is calculated by counting the number of rotations using an incremental rotary encoder coaxial with the motor rotor.

[0004] However, in actual operation, incremental rotary encoders are prone to inaccurate counting, signal fluctuations, or unstable operation due to factors such as mechanical vibration, installation errors, external interference, or impacts. This can affect the rotational accuracy of the rotary valve and threaten the stable operation of the RTO system and the entire electrical system. Therefore, improvements are urgently needed. Utility Model Content

[0005] In order to overcome the shortcomings of existing rotary decoder and motor connection fixing devices, such as severe vibration during operation, difficulty in disassembly and assembly, and unstable connection status, this utility model designs a fixing device for stable operation of incremental rotary encoder. Its connection status is stable and reliable, and it is convenient and efficient to install and remove, and there is no obvious vibration during operation.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A fixing device for stable operation of an incremental rotary encoder includes a tubular support frame, in which a flexible coupling is rotatably fitted, with its two ends connected to a motor and a rotary encoder, respectively; a fixing component is also fitted on the outer surface of the tubular support frame.

[0007] In a preferred embodiment of the present invention, a locking plate is integrally provided at one end of the tubular support frame, and a plurality of locking holes are provided on the locking plate. The locking plate is connected to the motor through a connector passing through each locking hole.

[0008] In a preferred embodiment of the present invention, the flexible coupling has multiple spiral vibration absorption grooves; adjustment grooves are provided on both sides of the flexible coupling, and the sides of the adjustment grooves are provided with internal threaded holes that penetrate the flexible coupling, and locking screws for locking the adjustment grooves are screwed into the internal threaded holes.

[0009] In a preferred embodiment of the present invention, the fixing component includes an arc-shaped clamp and a fixing clamp. The arc-shaped clamp is sleeved on the outer surface of the tubular support frame. The fixing clamp is sleeved on the outside of the arc-shaped clamp, and the fixing clamp has connecting blocks at both ends. A second screw is threaded through between the two connecting blocks.

[0010] In a preferred embodiment of this utility model, the arc-shaped clamp includes a front arc-shaped clamp and a rear arc-shaped clamp. The front arc-shaped clamp is provided with a protective net for the viewing window. A viewing window corresponding to the protective net is opened on one side of the tubular support frame. The front arc-shaped clamp and the rear arc-shaped clamp are sequentially wrapped around and fastened to the outer surface of the tubular support frame along the axial direction. Anti-slip rubber pads are provided on the inner side of both the front arc-shaped clamp and the rear arc-shaped clamp.

[0011] Compared with the prior art, this utility model has the following features and beneficial effects: 1. This utility model effectively buffers mechanical vibrations from the motor or external environment through the flexible coupling vibration absorption groove structure, preventing the rotary encoder from counting deviation or damage due to vibration; the locking screw design makes the connection between the coupling and the shaft more secure and facilitates maintenance.

[0012] 2. This utility model provides rigid support for the entire device through the set tubular support frame locking plate structure, effectively preventing the rotary encoder from shaking or falling off; the viewing window design realizes the online observation function, which can conveniently check the connection status of the coupling and the rotary encoder without stopping the machine; the locking plate is firmly fixed to the motor with bolts to ensure that the whole device and the motor operate synchronously and stably.

[0013] 3. This utility model uses fixed components—arc-shaped clamp, clamp, and anti-slip rubber pad—to securely fix the rotary encoder body to the tubular support frame; the anti-slip rubber pad effectively increases friction and prevents displacement caused by vibration during operation; at the same time, the viewing window protective net protects the internal structure while ensuring that observation is not affected. Attached Figure Description

[0014] Figure 1 This is an exploded schematic diagram of this utility model; Figure 2 This is a schematic diagram of the assembled structure of this utility model; Figure 3 This is a half-sectional view of the present invention; Figure 4This is a schematic diagram of the flexible coupling structure of this utility model.

[0015] The attached figures are labeled as follows: 1. Tubular support frame; 2. Flexible coupling; 3. Fixing component; 4. Locking screw; 5. Motor; 6. Rotary encoder; 11. Locking plate; 12. Viewing window; 21. Vibration absorption groove; 23. Adjustment groove; 24. Internal threaded hole; 31. Arc-shaped clamp; 32. Fixing clamp; 41. Second screw; 111. Locking hole; 311. Front arc-shaped clamp; 312. Rear arc-shaped clamp; 313. Viewing window protective net; 314. Anti-slip rubber pad; 321. Connecting block. Detailed Implementation

[0016] The present invention will now be described in more detail with reference to the embodiments.

[0017] like Figures 1 to 3 As shown, the fixing device for stable operation of incremental rotary encoder in this embodiment includes a tubular support frame 1, a flexible coupling 2 is rotatably sleeved inside the tubular support frame 1, and the two ends of the flexible coupling 2 are respectively connected to the motor 5 and the rotary encoder 6; a fixing component 3 is also sleeved on the outer surface of the tubular support frame 1.

[0018] like Figures 1 to 2 As shown, the tubular support frame 1 has a locking plate 11 integrally provided at one end. The locking plate 11 has multiple locking holes 111. The locking plate 11 is connected to the motor 5 through a connector passing through each locking hole 111.

[0019] like Figure 4 As shown, the flexible coupling 2 has multiple spiral vibration absorption grooves 21; the flexible coupling 2 has adjustment grooves 23 on both sides, and the adjustment grooves 23 have internal threaded holes 24 that penetrate the flexible coupling 2 on the side, and the internal threaded holes 24 are screwed with locking screws 4 for locking the adjustment grooves 23.

[0020] like Figures 1 to 3 As shown, the fixing component 3 includes an arc-shaped clamp 31 and a fixing clamp 32. The arc-shaped clamp 31 is sleeved on the outer surface of the tubular support frame 1. The fixing clamp 32 is sleeved on the outside of the arc-shaped clamp 31. The fixing clamp 32 has connecting blocks 321 at both ends. A second screw 41 is threaded through between the two connecting blocks 321.

[0021] like Figures 1 to 2As shown, the arc-shaped clamp 31 includes a front arc-shaped clamp 311 and a rear arc-shaped clamp 312. The front arc-shaped clamp 311 is provided with a viewing window protective net 313. A viewing window 12 corresponding to the viewing window protective net 313 is opened on one side of the tube wall of the tubular support frame 1. The front arc-shaped clamp 311 and the rear arc-shaped clamp 312 are sequentially wrapped around and fastened to the outer surface of the tubular support frame 1 along the axial direction. The inner sides of the front arc-shaped clamp 311 and the rear arc-shaped clamp 312 are provided with anti-slip rubber pads 314.

[0022] The working principle of this invention is as follows: When the motor 5 starts, the rotational power it generates is first transmitted to the flexible coupling 2. The flexible coupling 2, with its multi-spiral vibration absorption grooves 21, effectively absorbs the mechanical vibrations generated during the operation of the motor 5, preventing these vibrations from being directly transmitted to the rotary encoder 6, thus ensuring the accuracy of the rotary encoder 6's counting. The adjustment grooves 23 at both ends of the flexible coupling 2 are connected to the motor 5 and the rotary encoder 6 respectively. The tightness of the connection between the flexible coupling 2 and the rotating shaft can be easily adjusted via the locking screw 4 on the internal threaded hole 24, ensuring a firm and reliable connection, and also facilitating subsequent maintenance and disassembly.

[0023] Meanwhile, the tubular support frame 1 is fixedly connected to the motor 5 via a locking disc 11 at one end. Multiple locking holes 111 on the locking disc 11 are tightly secured to the motor 5 with bolts, providing rigid support for the entire device and preventing the rotary encoder 6 from shaking or falling off during operation. Furthermore, the viewing window 12 on one side of the tubular support frame 1 allows operators to directly observe the connection status between the flexible coupling 2 and the rotary encoder 6 without stopping the machine, enabling timely detection and handling of any potential problems.

[0024] On the outer surface of the tubular support frame 1, the fixing assembly 3 plays a crucial role. The arc-shaped clamping plate 31 includes a front arc-shaped clamping plate 311 and a rear arc-shaped clamping plate 312, which sequentially encircle and secure to the outer surface of the tubular support frame 1 along the axial direction. The viewing window protective net 313 provided on the front arc-shaped clamping plate 311 protects the internal structure from external interference while ensuring that the observation function through the viewing window 12 is not affected. The anti-slip rubber pads 314 on the inner sides of the front arc-shaped clamping plate 311 and the rear arc-shaped clamping plate 312 effectively increase the friction between them and the tubular support frame 1, preventing displacement of the rotary encoder 6 due to vibration during operation. The fixing clamps 32 are fitted on the outer side of the arc-shaped clamping plate 31 and secured by the second screws 41 on the connecting blocks 321 at both ends, further enhancing the stability of the entire fixing assembly 3, ensuring that the rotary encoder 6 can output signals stably and accurately, and guaranteeing the stable operation of the RTO system and the entire electrical system.

[0025] Installation process: Connect the adjusting groove 23 at one end of the flexible coupling 2 to the shaft at the non-drive end of the motor 5, and tighten the locking screw 4 on that side.

[0026] Using multiple external hexagonal fixing bolts, the locking disc 11 on the tubular support frame 1 is pre-fixed to the small oil cap on the non-drive end of the motor 5. At this time, the bolts are not fully tightened. After adjusting the gap between the inner wall of the tubular support frame 1 and the shaft of the motor 5 to make it uniform, the fixing bolts are then tightened.

[0027] Next, insert the rotating shaft of the rotary encoder 6 into the adjustment groove 23 at the other end of the flexible coupling 2 to ensure that the body of the rotary encoder 6 is inserted into the tube wall of the tubular support frame 1; at the viewing window 12 of the tubular support frame 1, tighten the locking screw 4 on this side of the flexible coupling 2.

[0028] Finally, attach the front arc-shaped clamp 311 and the rear arc-shaped clamp 312 to the outer wall of the rotary encoder 6 body and the tubular support frame 1, align the viewing window 12 with the viewing window protective net 313, and use the fixing clamp 32 to lock and fix them.

[0029] In the description of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A fixing device for stable operation of an incremental rotary encoder, characterized in that: The device includes a tubular support frame (1), inside which a flexible coupling (2) is rotatably fitted. The two ends of the flexible coupling (2) are connected to a motor (5) and a rotary encoder (6) respectively. A fixing component (3) is also fitted on the outer surface of the tubular support frame (1).

2. The fixing device for stable operation of an incremental rotary encoder according to claim 1, characterized in that: The tubular support frame (1) is integrally provided with a locking plate (11) at one end. The locking plate (11) has multiple locking holes (111). The locking plate (11) is connected to the motor (5) through a connector passing through each locking hole (111).

3. The fixing device for stable operation of an incremental rotary encoder according to claim 1, characterized in that: The flexible coupling (2) has multiple spiral vibration absorption grooves (21); the flexible coupling (2) has adjustment grooves (23) on both sides; the adjustment grooves (23) have internal thread holes (24) that penetrate the flexible coupling (2) on the side; and the internal thread holes (24) are screwed with locking screws (4) for locking the adjustment grooves (23).

4. The fixing device for stable operation of an incremental rotary encoder according to claim 1, characterized in that: The fixing component (3) includes an arc-shaped clamp (31) and a fixing clamp (32). The arc-shaped clamp (31) is sleeved on the outer surface of the tubular support frame (1). The fixing clamp (32) is sleeved on the outside of the arc-shaped clamp (31). The fixing clamp (32) has connecting blocks (321) at both ends. A second screw (41) is threaded through between the two connecting blocks (321).

5. A fixing device for stable operation of an incremental rotary encoder according to claim 4, characterized in that: The arc-shaped clamp (31) includes a front arc-shaped clamp (311) and a rear arc-shaped clamp (312). The front arc-shaped clamp (311) is provided with a protective net (313). The tubular support frame (1) has a viewing window (12) on one side of its tube wall, which is located at a position corresponding to the protective net (313). The front arc-shaped clamp (311) and the rear arc-shaped clamp (312) are sequentially wrapped around and fastened to the outer surface of the tubular support frame (1) along the axial direction. The inner sides of the front arc-shaped clamp (311) and the rear arc-shaped clamp (312) are provided with anti-slip rubber pads (314).

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