Encoder mounting bracket

Abstract

The utility model provides an encoder mounting support, which relates to the technical field of encoder measurement, and comprises a support body and a supporting structure, the support body comprises a circular chassis and an annular side wall extending along the edge of the circular chassis and perpendicular to the circular chassis, the supporting structure is connected with the annular side wall, the circular chassis is provided with a first through hole, and the circular chassis is provided with a second through hole. The side, away from the annular side wall, of the circular base plate is used for installing an encoder. A shaft of the encoder is used for penetrating through the first through hole to be connected with a rotating shaft of equipment. According to the utility model, the measurement accuracy of the encoder can be effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of encoder measurement, in particular to an encoder mounting bracket. Background Art

[0002] In modern industrial automation and control systems, encoders, as core components, play an indispensable role. Their primary function is to convert mechanical displacement or rotation into electrical signals for feedback control and precise measurement.

[0003] Conventional encoders measure rotating equipment by connecting the encoder shaft to the rotating equipment's shaft to measure the rotating equipment's speed. However, as the rotating equipment rotates, the axes of the encoder and the rotating equipment's shaft may become misaligned, causing the encoder to move eccentrically, resulting in a discrepancy between the encoder's measurement and the actual rotating equipment's speed. Utility Model Content

[0004] The problem solved by the utility model is: how to improve the measurement accuracy of the encoder.

[0005] In order to solve the above problems, the utility model provides an encoder mounting bracket.

[0006] In the first aspect, the utility model provides an instrument panel crossbeam assembly, including a bracket body and a support structure, the bracket body including a circular chassis, an annular side wall extending perpendicularly to the circular chassis along the edge of the circular chassis, the support structure being connected to the annular side wall, the circular chassis being provided with a first through hole, the side of the circular chassis away from the annular side wall being used for installing an encoder, and the shaft of the encoder being used to pass through the first through hole and be connected to the rotating shaft of the device.

[0007] Optionally, the support structure includes a support arm, a base foot and a bolt, one end of the support arm is fixedly connected to the outer wall of the annular side wall, the end of the support arm away from the annular side wall is provided with a rectangular through hole, and one end of the base foot is provided with a second through hole, and the bolt passes through the rectangular through hole and the second through hole respectively to connect the support arm and the base foot.

[0008] Optionally, a foot side arm is extended perpendicularly to the foot from one end of the foot away from the second through hole, and the foot side arm is used to be connected to the device.

[0009] Optionally, a fixing hole and a connecting assembly are provided on the base foot side arm, and the fixing hole is used to detachably connect the base foot side arm to the device through the connecting assembly.

[0010] Optionally, the encoder mounting bracket includes three supporting structures, one end of the three supporting structures is fixedly connected to the outer wall of the annular side wall, and the other end of the three supporting structures is connected to the device.

[0011] Optionally, a detection window is provided on the annular side wall.

[0012] Optionally, the mounting bracket further includes a soft connection structure, one end of the soft connection structure is connected to the encoder, and the other end of the soft connection structure is connected to the rotating shaft.

[0013] Optionally, the soft connection structure includes a first connection end, a second connection end and a spring, one side of the first connection end is connected to the encoder, the other side of the first connection end is connected to one end of the spring, the other end of the spring is connected to one side of the second connection end, and the other side of the second connection end is connected to the rotating shaft.

[0014] Optionally, the mounting bracket further comprises a hollow cylinder with one end open, the hollow cylinder being used to be sleeved on the encoder, and the open end of the hollow cylinder being connected to the circular chassis.

[0015] Optionally, a side arm of the hollow cylinder is provided with a third through hole, and the third through hole is used for passing the cable of the encoder.

[0016] The beneficial effects of the encoder mounting bracket of the present invention are as follows: the circular chassis and the annular sidewalls surrounding it form a basin-shaped space that can accommodate the rotating shaft, which can provide protection for the rotating shaft and prevent it from colliding with other objects when the rotating shaft rotates at high speed and causing damage. At the same time, the annular sidewalls can enhance the overall strength and rigidity of the mounting bracket, provide a larger contact area for the support structure, and enable the support structure to be more stably connected to the annular sidewalls, thereby ensuring the stability of the overall structure of the mounting bracket, avoiding deviation of the encoder during operation, allowing the encoder to measure in a stable working state, and improving the accuracy of the encoder measurement. In addition, the annular sidewalls can limit the rotating shaft, so that the encoder shaft can quickly and accurately connect to the rotating shaft located inside the annular sidewalls after passing through the first through hole, avoiding the time waste that may be caused by the installation process of the encoder and improving the detection efficiency of the encoder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the three-dimensional structure of the encoder mounting bracket in an embodiment of the present utility model;

[0018] Figure 2 Schematic diagram of the positional relationship between the support arm and the annular side wall in an embodiment of the present utility model;

[0019] Figure 3Schematic diagram of the soft connection structure in the embodiment of the present invention.

[0020] Description of reference numerals:

[0021] 1-bracket body; 11-circular chassis; 12-annular side wall; 2-hollow cylinder; 3-support structure; 31-support arm; 32-base; 321-base side arm; 4-detection window; 5-flexible connection structure; 51-first connection end; 52-spring; 53-second connection end. DETAILED DESCRIPTION

[0022] To make the above-mentioned objects, features, and advantages of the present invention more clearly understood, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. Although certain embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be construed as being limited to the embodiments described herein. Instead, these embodiments are provided to provide a more thorough and complete understanding of the present invention. It should be understood that the drawings and embodiments of the present invention are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0023] The term "including" and its variations used in this document are open inclusions, that is, "including but not limited to"; the term "based on" means "at least partially based on"; the term "one embodiment" means "at least one embodiment"; the term "another embodiment" means "at least one other embodiment"; the term "some embodiments" means "at least some embodiments"; the term "optionally" means "optional embodiments". The relevant definitions of other terms will be given in the following description. It should be noted that the concepts of "first", "second", etc. mentioned in this utility model are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0024] In related technologies, an encoder is a sensor device that converts mechanical motion (usually rotational motion) into electrical signals. It can provide the control system with information such as the speed and direction of moving parts and is widely used in many fields such as industrial automation, robotics, and CNC machine tools. The encoder is mainly composed of a light source (such as a light-emitting diode), a shaft, and a photosensitive element. The shaft is a circular disk with translucent and opaque areas. It is connected to the measured shaft. When the measured shaft rotates, the shaft rotates with it. The light emitted by the light source shines on the photosensitive element through the translucent area of ​​the shaft. The alternating changes in the translucent and opaque areas cause the light signal received by the photosensitive element to generate periodic pulses. By processing these pulse signals, the shaft speed information can be obtained. The finer the distribution of the translucent and opaque areas on the shaft, the more pulses are generated per revolution, and the higher the measurement accuracy. For example, when a roll-changing trolley in a hot rolling mill begins operating, its position is determined by an encoder connected to the motor shaft. The encoder detects pulse signals generated by the motor's rotational motion and counts the pulses to determine the trolley's position. As the trolley moves, the motor's speed is determined by changes in the encoder's pulse signals. This allows the control system to determine the trolley's position and speed in real time based on the measured speed. However, due to the complex environment of a hot rolling mill, the encoder and the connected shaft may shift during operation, causing the encoder's axis to misalign and resulting in eccentric encoder motion. When the encoder moves eccentrically, the center of rotation of the shaft (for photoelectric encoders) or the magnetic drum (for magnetic encoders) misaligns with the center of the measurement reference. This eccentricity causes the time and location at which the translucent and opaque areas pass through the photoelectric sensor to differ from normal. This causes the measured results to differ from the actual shaft rotation and leads to deviations in information such as speed measured by the encoder.

[0025] In view of the problems existing in the above-mentioned related technologies, the utility model provides an encoder mounting bracket.

[0026] Combine Figure 1 As shown, an encoder mounting bracket provided by an embodiment of the present invention includes a bracket body 1 and a support structure 3, the bracket body 1 includes a circular chassis 11, an annular side wall 12 extends perpendicular to the circular chassis 11 along the edge of the circular chassis 11, the support structure 3 is connected to the annular side wall 12, the circular chassis 11 is provided with a first through hole, the side of the circular chassis 11 away from the annular side wall 12 is used to install an encoder, and the axis of the encoder is used to pass through the first through hole and connect to the rotating axis of the device.

[0027] Specifically, the circular chassis 11 serves as the mounting platform for the encoder. It is necessary to select a suitable circular chassis 11 based on the size of the encoder and the size of the rotating shaft of the rotating device to be measured, so that the circular chassis 11 can match the encoder shaft and the rotating shaft. The annular sidewall 12 extending perpendicularly to the chassis along the edge of the circular chassis 11 forms a "basin-shaped" structure with the circular chassis 11. The height and thickness of the annular sidewall 12 can be determined based on specific usage needs and design requirements. The height must match the connection between the rotating shaft to be measured and the encoder shaft. If the height is too high, the rotating shaft may not be connected to the encoder, while if the height is too low, the support structure connected to it will not have sufficient contact surface, affecting the stability of the connection. At the same time, the annular sidewall 12 can also protect the connection part of the rotating shaft, preventing the shaft from being exposed and preventing external dust, impurities, moisture, etc. from contacting the shaft. Furthermore, the annular sidewall 12 can also enhance the overall strength and rigidity of the bracket body 1, providing safe and stable support for the encoder, preventing the encoder from being offset due to external factors such as vibration during operation, and ensuring the accuracy of the measurement results. For example, in some working environments with large vibrations, the annular side wall 12 can effectively reduce the deformation and shaking of the bracket, thereby ensuring the measurement accuracy of the encoder. The support structure 3 is connected to the outer wall of the annular side wall 12, and the connection method can be welding. The welded connection has high strength and stability, and can firmly fix the support structure 3 on the annular side wall 12. The end of the support structure 3 away from the annular side wall 12 can be used to connect to the device being detected or a relatively fixed infrastructure, ensuring that the position of the mounting bracket is relatively fixed, avoiding displacement when the encoder is working, and also providing support and positioning for the connection between the encoder and the rotating shaft. By adjusting and fixing the support structure 3, it can be ensured that the axis of the encoder coincides with the axis of the rotating shaft, thereby ensuring that the encoder can accurately measure information such as the rotational speed. The support structure 3 can be multiple and evenly distributed around the annular side wall 12. One end of each support structure 3 is fixedly connected to the annular side wall 12, and the other end is connected to the device being detected or a fixing device, so that the position of the encoder is relatively stable when working, ensuring the accuracy of the encoder measurement. A first through-hole is provided on the circular chassis 11. The first through-hole is located at or near the center of the circular chassis 11. Its size matches the size of the encoder shaft, ensuring that the encoder shaft can smoothly pass through the first through-hole while avoiding positional deviation caused by excessive clearance, which could affect measurement accuracy. The side of the circular chassis 11 away from the annular sidewall 12 is used to mount the encoder. The encoder shaft matches the position of the first through-hole. The encoder shaft is designed to pass through the first through-hole and connect to the rotating shaft of the device to be measured, thereby rotating the encoder shaft and the rotating shaft synchronously, allowing accurate measurement of the rotating shaft's rotational speed.

[0028] In this embodiment, the circular chassis 11 and the annular side wall 12 surrounding it constitute a basin-shaped space that can accommodate the rotating shaft, which can provide protection for the rotating shaft to prevent damage caused by collision with other objects when the rotating shaft rotates at high speed. At the same time, the annular side wall 12 can enhance the overall strength and rigidity of the mounting bracket, provide a larger contact area for the support structure 3, and enable the support structure 3 to be more stably connected to the annular side wall 12, thereby ensuring the stability of the overall structure of the mounting bracket, avoiding offset of the encoder during operation, and allowing the encoder to measure in a stable working state, thereby improving the accuracy of the encoder measurement. In addition, the annular side wall 12 can limit the rotating shaft, so that the encoder shaft can pass through the first through hole and quickly and accurately connect to the rotating shaft located inside the annular side wall 12, thereby avoiding the time waste that may be caused by the installation process of the encoder and improving the installation efficiency of the encoder.

[0029] like Figure 1 As shown, optionally, the support structure 3 includes a support arm 31, a base foot 32 and a bolt, one end of the support arm 31 is fixedly connected to the outer wall of the annular side wall 12, and a rectangular through hole is provided at the end of the support arm 31 away from the annular side wall 12, and a second through hole is provided at one end of the base foot 32, and the bolt passes through the rectangular through hole and the second through hole respectively to connect the support arm 31 and the base foot 32.

[0030] Specifically, one end of the support arm 31 is fixedly connected to the outer wall of the annular side wall 12, so that the support arm 31 and the annular side wall 12 form a stable connection. Figure 2 As shown, after being fixedly connected, the support arm 31 of the support structure 3 is perpendicular to the cross-section of the connection with the annular side wall 12, and the dotted line is the cross-section of the connection with the annular side wall 12. A rectangular through-hole is provided at the end of the support arm 31 away from the annular side wall 12. The rectangular through-hole is used to connect with the base 32. The shape of the rectangular through-hole is designed for various reasons such as easy installation, flexible adjustment, or structural strength. Compared with a circular hole, a rectangular through-hole can provide more precise positioning and adjustment functions in the longitudinal direction (vertical direction) of the through-hole, that is, there is more room for movement in the longitudinal direction of the rectangle, and the position of the base 32 can be fine-tuned to make the axis of the encoder coincide with the axis of the rotating shaft, so that the encoder shaft can accurately follow the rotating shaft and rotate synchronously, ensuring the accuracy of the encoder's measurement of the rotating shaft. The bolts pass through the rectangular through hole and the second through hole at one end of the base 32 respectively to connect the support arm 31 and the base 32. The position and size design of the second through hole need to match the rectangular through hole on the support arm 31 to ensure that the bolts can pass through smoothly and achieve a tight connection. In the hot rolling mill environment with large vibrations, high-strength bolts need to be used in combination with appropriate nuts and washers to ensure the stability of the connection.

[0031] In this optional embodiment, by means of a connection method in which bolts pass through the rectangular through hole and the second through hole, the position of the base 32 relative to the support arm 31 can be flexibly adjusted to a certain extent, which can cope with different installation environments and improve the stability and reliability of the installation. At the same time, this connection method makes the installation and disassembly process of the support leg relatively simple, thereby improving the efficiency of installation and maintenance.

[0032] like Figure 1 As shown optionally, a foot side arm 321 is extended perpendicularly to the foot 32 from one end of the foot 32 away from the second through hole, and the foot side arm 321 is used to connect with the device.

[0033] Optionally, a fixing hole and a connecting assembly are provided on the base foot side arm 321 , and the fixing hole is used to detachably connect the base foot side arm 321 to the device through the connecting assembly.

[0034] Specifically, at one end of the base 32 away from the second through hole, a base side arm 321 extends perpendicular to the plane where the base 32 is located. The base side arm 321 forms a right-angled "L"-shaped structure with the base 32 itself. In addition, a fixing hole can be provided on the base side arm 321. The fixing hole can be a through hole. The number of the fixing holes can be set according to the stability requirements. If high stability is required, multiple through holes can be provided. The connecting component can be a bolt to ensure the stability of the connecting part of the base side arm 321. For example, when measuring the speed of a rotating device such as a motor, a bolt can be passed through the through hole on the base side arm 321 to connect it to the motor housing, thereby fixing the entire mounting bracket to the motor housing. The stable connection between the base side arm 321 and the motor housing can provide a relatively stable working environment for the encoder, so that the encoder can accurately measure the speed of the motor.

[0035] like Figure 1 As shown, optionally, the encoder mounting bracket includes three supporting structures 3, one end of the three supporting structures 3 is respectively fixedly connected to the outer wall of the annular side wall 12, and the other end of the three supporting structures 3 is respectively connected to the device.

[0036] Specifically, the three support structures 3 are fixedly connected to the outer wall of the annular side wall 12 respectively. The fixed connection strengthens the connection strength between the support structure 3 and the annular side wall 12, thereby improving the overall stability of the mounting bracket. Moreover, connecting the support structure 3 to the outer wall of the annular side wall 12 can increase the contact area of ​​the connection part, further improve the stability of the connection, and ensure the accuracy of the encoder measurement. The three support structures 3 can be evenly distributed on the outer wall of the annular side wall 12, which can provide more stable support. The structure is relatively simple and symmetrical, and it is easier to find a suitable position and angle during layout and installation, which can effectively improve the installation efficiency.

[0037] like Figure 1 As shown optionally, the annular side wall 12 is provided with a detection window 4 .

[0038] In this optional embodiment, when installing the encoder mounting device, the operator can visually observe through the inspection window 4 whether the connection between the encoder shaft and the rotating shaft is accurately aligned. If there is eccentricity or angular deviation between the two shafts, adjustments can be made in a timely manner to ensure that the encoder can accurately measure the motion information of the rotating shaft. For example, during the installation and commissioning of the encoder on a CNC machine tool, the shaft connection observed through the inspection window 4 can help technicians quickly and accurately connect the encoder to the machine tool spindle. When the encoder is measuring the equipment, the operator can check at any time through the inspection window 4 whether the connection between the encoder shaft and the rotating shaft is firm. If there is a loose connection or worn coupling, etc., it can be discovered in time and appropriate maintenance measures can be taken to avoid measurement errors or equipment damage caused by abnormal connection.

[0039] like Figure 1 As shown, optionally, the encoder mounting bracket further includes a soft connection structure 5, one end of the soft connection structure 5 is connected to the encoder, and the other end of the soft connection structure 5 is connected to the rotating shaft.

[0040] Optionally, the soft connection structure 5 includes a first connection end 51, a second connection end 53 and a spring 52, one side of the first connection end 51 is connected to the encoder, the other side of the first connection end 51 is connected to one end of the spring 52, the other end of the spring 52 is connected to one side of the second connection end 53, and the other side of the second connection end 53 is connected to the rotating shaft.

[0041] In this optional embodiment, the encoder shaft and the rotating shaft are connected via a flexible connection structure 5. When the rotating shaft begins to rotate, the rotational motion and torque are transmitted to the connected spring 52 via the second connection end 53 connected to the rotating shaft. Upon receiving the torque, the spring 52 undergoes a certain elastic deformation based on its own elastic properties. The spring then transmits the buffered and regulated torque and rotational motion to the first connection end 51, which in turn transmits the torque and rotational motion to the connected encoder shaft. This allows the encoder shaft to rotate synchronously with the rotating shaft, accurately measuring the shaft's rotational speed, angle, and other motion parameters. If the rotating shaft experiences vibration, impact, or installation misalignment between the two shafts, the spring 52 expands and contracts to absorb the vibration and compensate for the misalignment, ensuring that the entire connection structure remains relatively stable and enabling the encoder to continuously and stably acquire accurate measurement data. The flexible connection structure 5 effectively isolates axial vibration and impact transmitted from the rotating shaft, significantly reducing the possibility of measurement errors or internal component damage due to external vibration interference, improving the encoder's reliability and stability under complex operating conditions, and extending the encoder's service life.

[0042] like Figure 1 As shown, optionally, the encoder mounting bracket further includes a hollow cylinder 2 with an open end, the hollow cylinder 2 is used to be sleeved on the encoder, and the open end of the hollow cylinder 2 is connected to the circular chassis 11.

[0043] Optionally, a side arm of the hollow cylinder 2 is provided with a third through hole, and the third through hole is used to pass the cable of the encoder.

[0044] In this optional embodiment, the encoder mounting bracket also includes an encoder protection structure, which is a hollow cylinder 2 with an open end. The overall shape is typically cylindrical, but can also adopt other regular or irregular cylindrical shapes, such as a rectangular parallelepiped, depending on the specific design requirements and the encoder's external profile. Through the open end, the hollow body 2 can be placed over the encoder mounted on the circular base. The open end of the hollow body 2 connects to the surface of the circular base, thereby enclosing the encoder. This protects the encoder from external dust, moisture, and other foreign objects that could damage the encoder, preventing them from entering the encoder and affecting its normal photoelectric detection, signal conversion, and other processes. Furthermore, the internal space of the hollow cylinder 2 allows for accurate positioning of the encoder, ensuring the stability of the encoder installation, providing a fundamental guarantee for accurately measuring the relevant motion of the rotating shaft, and ensuring the accuracy of the detection mechanism. The side arm of the hollow cylinder 2 is provided with a third through-hole for routing the encoder cable. The size of this third through-hole matches the diameter of the cable to prevent excessive gaps that could allow foreign objects to enter the hollow cylinder 2. If necessary, the hollow cylinder 2 can be sealed with a material such as sealing putty.

[0045] Although the present invention is disclosed as above, the protection scope of the present invention is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications will fall within the protection scope of the present invention.

Claims

1. An encoder mounting bracket, characterized in that: The invention comprises a bracket body (1) and a supporting structure (3), wherein the bracket body (1) comprises a circular chassis (11), an annular side wall (12) extends perpendicularly to the circular chassis (11) along the edge of the circular chassis (11), the supporting structure (3) is connected to the annular side wall (12), the circular chassis (11) is provided with a first through hole, and a side of the circular chassis (11) away from the annular side wall (12) is used for installing an encoder, and the shaft of the encoder is used to pass through the first through hole and be connected to the rotating shaft of the device.

2. The encoder mounting bracket according to claim 1, characterized in that: The support structure (3) comprises a support arm (31), a base (32) and a bolt. One end of the support arm (31) is fixedly connected to the outer wall of the annular side wall (12). An end of the support arm (31) away from the annular side wall (12) is provided with a rectangular through hole. One end of the base (32) is provided with a second through hole. The bolt passes through the rectangular through hole and the second through hole respectively to connect the support arm (31) and the base (32).

3. The encoder mounting bracket according to claim 2, characterized in that: One end of the base foot (32) away from the second through hole extends perpendicularly to the base foot (32) to form a base foot side arm (321), and the base foot side arm (321) is used to be connected to the device.

4. The encoder mounting bracket according to claim 3, characterized in that: The base foot side arm (321) is provided with a fixing hole and a connecting assembly, and the fixing hole is used to detachably connect the base foot side arm (321) to the device through the connecting assembly.

5. The encoder mounting bracket according to claim 1, characterized in that: The encoder mounting bracket comprises three supporting structures (3), one end of each of the three supporting structures (3) is fixedly connected to the outer wall of the annular side wall (12), and the other end of each of the three supporting structures (3) is connected to the device.

6. The encoder mounting bracket according to claim 1, characterized in that: The annular side wall (12) is provided with a detection window (4).

7. The encoder mounting bracket according to claim 1, characterized in that: It also includes a soft connection structure (5), one end of the soft connection structure (5) is connected to the encoder, and the other end of the soft connection structure (5) is connected to the rotating shaft.

8. The encoder mounting bracket according to claim 7, characterized in that: The soft connection structure (5) comprises a first connection end (51), a second connection end (53) and a spring (52), wherein one side of the first connection end (51) is connected to the encoder, the other side of the first connection end (51) is connected to one end of the spring (52), the other end of the spring (52) is connected to one side of the second connection end (53), and the other side of the second connection end (53) is connected to the rotating shaft.

9. The encoder mounting bracket according to claim 1, wherein: It also comprises a hollow cylinder (2) with an open end, the hollow cylinder (2) being used for being sleeved on the encoder, and the open end of the hollow cylinder (2) being connected to the circular chassis (11).

10. The encoder mounting bracket according to claim 9, characterized in that: The side arm of the hollow cylinder (2) is provided with a third through hole, and the third through hole is used for passing the cable of the encoder.

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