Novel hollow encoder

Abstract

The utility model belongs to the field of encoders, particularly relates to a novel hollow encoder, and aims to solve the problems that most of existing hollow encoders are in a mechanical contact type, the service life is affected, signals are unstable, collected original signals easily contain a large amount of noise and interference, output signals are large in fluctuation, and the cost is low. According to the technical scheme, the device comprises a base, a rotating shaft is clamped in the base in a limiting mode, and a support is arranged at the top of the rotating shaft. When the encoder is used, time difference signals can be generated, rotation information of the rotating shaft can be conveniently and accurately obtained, the encoder is prevented from being affected by electromagnetic interference, electrostatic interference and the like, the signals can be processed so that stability and accuracy of output signals can be guaranteed, and a large amount of noise and interference existing in collected original signals can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of encoder technology, and in particular to a novel hollow encoder. Background Technology

[0002] A hollow encoder is a special type of rotary encoder, characterized by a central hole (hollow shaft) that runs through the entire encoder, allowing it to be directly fitted onto a motor shaft or other rotating parts for installation.

[0003] Most existing hollow encoders are mechanical contact type, which affects service life and makes the signal unstable. As a result, the acquired raw signal is prone to contain a lot of noise and interference, resulting in large fluctuations in the output signal and affecting the measurement accuracy of the encoder.

[0004] To address the aforementioned problems, this utility model document proposes a novel hollow encoder. Utility Model Content

[0005] This invention provides a novel hollow encoder that solves the problems of existing technologies, such as the difficulty in generating corresponding electrical signals in most hollow encoders, the inability of encoders to accurately acquire shaft rotation information, and the susceptibility of encoders to electromagnetic interference, electrostatic interference, etc., leading to unstable signals. As a result, the acquired raw signals are prone to contain a large amount of noise and interference, resulting in large fluctuations in the output signal and affecting the measurement accuracy of the encoder.

[0006] This utility model provides the following technical solution:

[0007] A novel hollow encoder includes:

[0008] A base, wherein a rotating shaft is internally limited and engaged, and a bracket is provided on the top of the rotating shaft, and the rotating shaft and the base are positioned and connected by the bracket;

[0009] Functional components are mounted on the base to enhance the functionality of the hollow encoder.

[0010] The riveting assembly is located on top of the base and is used to connect and rivet the base, shaft, and bracket together.

[0011] In one possible design, the functional components include a PCBA board, slotted optocouplers, a voltage signal stabilization processing circuit, and pins. The PCBA board is fixedly mounted on the inner wall of the base, and the two slotted optocouplers are both attached to the top side of the PCBA board. The two slotted optocouplers are staggered to achieve a time difference in the output signal.

[0012] In one possible design, both voltage signal stabilization circuits are fixedly mounted on the bottom side of the PCBA board to ensure stable signal output, and multiple pins are soldered to the bottom side of the PCBA board to facilitate the customization of power supply pins and output pins.

[0013] In one possible design, the inner wall of the rotating shaft is welded with multiple light-blocking teeth, which are used in conjunction with the slotted optocoupler on the PCBA board.

[0014] In one possible design, the riveting assembly includes a positioning spring, a protrusion, a positioning groove, a claw, a plug groove, and a limiting plate. Two positioning springs are fixedly disposed on the top side of the rotating shaft, each protrusion is welded to the top side of the positioning spring, and multiple positioning grooves are formed on the bottom side of the bracket and engage with the protrusions to generate a shifting feel.

[0015] In one possible design, the multiple claws and brackets are integrally stamped and fixed to the base. The multiple insertion slots are formed on the outer wall of the base for the claws to be inserted for limiting, so as to further limit the position by the claws. The limiting plate is welded to the outer wall of the bracket to provide further limiting.

[0016] In one possible design, both the bracket and the positioning spring are made of SUS stainless steel, which helps to increase wear resistance.

[0017] In this application, during use, the PCBA board is first installed onto the base and soldered securely. Then, the rotating shaft is snapped onto the base. Next, the positioning spring is soldered and installed onto the rotating shaft and secured. Finally, the bracket is fitted and riveted to form a finished product. When the rotating shaft rotates, the protrusions on the positioning spring move within the positioning grooves as the shaft rotates. As the protrusions move from one positioning groove to another, a tactile feedback is generated. This feedback helps the user perceive the rotating position of the shaft, achieving precise angular positioning. It also achieves the effect of connecting and securing the base, rotating shaft, and bracket, facilitating riveting and securing. A finished product has multiple claws integrally stamped on the outer wall of the bracket, while multiple insertion slots are opened on the outer wall of the base. During installation, the claws on the bracket are inserted into the insertion slots on the base to achieve the initial connection between the bracket and the base. This connection method can prevent relative rotation between the bracket and the base and further enhance the limiting stability. After the bracket is installed on the base, the limiting plate can cooperate with the corresponding structure on the base to further restrict the installation position of the bracket, prevent the bracket from moving in the axial and radial directions, and ensure the structural stability and operational reliability of the entire encoder.

[0018] The PCBA board is fixed to the inner wall of the base, providing a mounting platform for various electronic components. Two slotted optocouplers are mounted on the top side of the PCBA board in a staggered arrangement. Multiple light-blocking teeth welded to the inner wall of the rotating shaft rotate with the shaft. When the shaft rotates, the light-blocking teeth pass through the slots in the slotted optocouplers. When the light-blocking teeth block the light-emitting diodes on the slotted optocouplers, the receiving diodes on the slotted optocouplers cannot receive signals and generate voltage output (high level when blocking light, low level when not blocking light). This generates a time difference signal, which contains the rotation information of the shaft, such as the rotation direction and angle, facilitating accurate acquisition of the shaft's rotation information and avoiding electromagnetic and electrostatic interference to the encoder. Due to factors such as noise and interference, the signal becomes unstable. Two voltage signal stabilization circuits are fixed on the bottom side of the PCBA board. These circuits can process the signal, such as filtering, amplifying, and shaping, to ensure the stability and accuracy of the output signal. This provides a reliable guarantee for subsequent signal transmission and use, avoiding the presence of a large amount of noise and interference in the original acquired signal, which would cause large fluctuations in the output signal and affect the measurement accuracy of the encoder. At the same time, multiple pins are soldered to the bottom side of the PCBA board, and the processed stable signal is output to external devices through the pins. Users can customize the power supply pins and output pins according to their actual needs, making it convenient to connect and communicate with different external circuits.

[0019] The bracket and positioning spring are made of SUS stainless steel, which has excellent wear resistance. During long-term use of the encoder, the shaft will rotate continuously, the protrusions on the positioning spring will frequently contact the positioning groove, and the claws on the bracket will continuously cooperate with the insertion groove. The SUS stainless steel material can effectively reduce the wear between these components, ensuring the dimensional accuracy and shape stability of the positioning spring, protrusions, positioning groove, claws, and insertion groove, thereby ensuring the positioning accuracy and signal output stability of the encoder and extending the service life of the encoder.

[0020] In this utility model, the novel hollow encoder can generate a time difference signal through functional components, which facilitates accurate acquisition of the rotation information of the rotating shaft and avoids the encoder being affected by electromagnetic interference, electrostatic interference, etc., which would lead to signal instability.

[0021] In this utility model, the novel hollow encoder, through the riveting assembly, can help users perceive the rotation position of the rotating shaft, achieve precise angle positioning, facilitate the initial connection between the bracket and the base, prevent relative rotation between the bracket and the base, further enhance the limiting stability, and also achieve the effect of connecting and fixing the base, rotating shaft and bracket, which is conducive to riveting and pressing into a finished product.

[0022] In this invention, a time difference signal can be generated, which facilitates accurate acquisition of the rotation information of the shaft, avoids the encoder being affected by electromagnetic interference, electrostatic interference, etc., which would lead to signal instability, and can also process the signal to ensure the stability and accuracy of the output signal, avoiding the presence of a large amount of noise and interference in the acquired raw signal, which would cause large fluctuations in the output signal. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the main structure of a novel hollow encoder provided in an embodiment of the present utility model;

[0024] Figure 2 One of the schematic diagrams of the exploded state structure of a novel hollow encoder provided in an embodiment of this utility model;

[0025] Figure 3 A second schematic diagram of the exploded state structure of a novel hollow encoder provided for an embodiment of this utility model;

[0026] Figure 4 A third schematic diagram of the exploded state structure of a novel hollow encoder provided for an embodiment of this utility model;

[0027] Figure 5 This is a schematic diagram of a PCBA board structure for a novel hollow encoder provided in an embodiment of the present invention.

[0028] Figure label:

[0029] 1. Base; 2. PCBA board; 3. Slotted optocoupler; 4. Voltage signal stabilization processing circuit; 5. Pin; 6. Shaft; 7. Bracket; 8. Positioning spring; 9. Protrusion; 10. Positioning slot; 11. Claw; 12. Insertion slot; 13. Limiting plate; 14. Light blocking tooth. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0031] Example 1

[0032] The existing encoder field has problems because most hollow encoders are not conducive to generating corresponding electrical signals, and encoders are not easy to accurately obtain the rotation information of the shaft. At the same time, encoders are more susceptible to electromagnetic interference, electrostatic interference, etc., which leads to signal instability. As a result, the acquired raw signal is prone to contain a lot of noise and interference, resulting in large fluctuations in the output signal and affecting the measurement accuracy of the encoder. To address these problems, this solution designs an encoder.

[0033] Please refer to Figures 1-4 An encoder, comprising:

[0034] The base 1 has a rotating shaft 6 inside the limiting clamp. The top of the rotating shaft 6 is provided with a bracket 7. The rotating shaft 6 and the base 1 are positioned and connected by the bracket 7. The rotating shaft 6 is clamped on the base 1. Then, the positioning spring piece 8 is welded and installed on the rotating shaft 6 for fixation. Finally, the bracket 7 is put on and riveted to form a finished product.

[0035] The functional components, mounted on the base 1, enhance the functionality of the hollow encoder. These components include a PCBA board 2, slotted optocouplers 3, a voltage signal stabilization circuit 4, and pins 5. The PCBA board 2 is fixedly mounted on the inner wall of the base 1. Two slotted optocouplers 3 are fitted onto the top side of the PCBA board 2, and are staggered to achieve a time difference in the output signal. Multiple light-blocking teeth 14 are welded to the inner wall of the rotating shaft 6, corresponding to and cooperating with the slotted optocouplers 3 on the PCBA board 2.

[0036] PCBA board 2 is fixed to the inner wall of base 1, providing a mounting platform for various electronic components. Two slotted optocouplers 3 are attached to the top side of PCBA board 2 and are staggered. Multiple light-blocking teeth are set on the inner wall of the rotating shaft 6 14 rotates with the rotating shaft 6. The rotating shaft and the light-blocking tooth are integrally injection molded. When the rotating shaft 6 rotates, the light-blocking tooth 14 passes through the groove in the middle of the slotted optocoupler element 3. The light-blocking tooth 14 blocks the light-emitting tube on the slotted optocoupler element 3, so that the receiving tube on the slotted optocoupler element 3 cannot receive the signal to generate voltage output (high level when blocking the light, low level when not blocking the light). This can generate a time difference signal. This time difference signal contains the rotation information of the rotating shaft 6, such as the rotation direction and rotation angle, which makes it easy to accurately obtain the rotation information of the rotating shaft 6.

[0037] Both voltage signal stabilization circuits 4 are fixedly mounted on the bottom side of PCBA board 2 to ensure stable signal output. These circuits perform signal processing operations such as filtering, amplification, and shaping to guarantee the stability and accuracy of the output signal, providing reliable assurance for subsequent signal transmission and use. This avoids significant noise and interference in the acquired raw signal, which could lead to large fluctuations in the output signal and affect the encoder's measurement accuracy. Multiple pins 5 are soldered to the bottom side of PCBA board 2 to facilitate customization of power and output pins. The processed stable signal is output to external devices through pins 5. Users can customize the power and output pins according to their actual needs, facilitating connection and communication with different external circuits.

[0038] The riveting assembly, located on top of the base 1, is used to connect and rivet the base 1, the rotating shaft 6, and the bracket 7. The riveting assembly includes positioning springs 8, protrusions 9, positioning grooves 10, claws 11, insertion grooves 12, and limiting plates 13. Two positioning springs 8 are fixedly mounted on the top side of the rotating shaft 6, and each protrusion 9 is welded to the top side of the positioning spring 8. Multiple positioning grooves 10 are formed on the bottom side of the bracket 7 and engage with the protrusions 9 to create a sense of positioning. When the rotating shaft 6 rotates, the protrusions 9 on the positioning springs 8 move within the positioning grooves 10 as the shaft rotates. As the protrusions 9 move from one positioning groove 10 to another, a sense of positioning is generated. This sense of positioning helps the user perceive the rotational position of the rotating shaft 6, achieving precise angular positioning. It also achieves the effect of connecting and fixing the base 1, rotating shaft 6, and bracket 7, facilitating the riveting and clamping of the components into a finished product.

[0039] Multiple jaws 11 and brackets 7 are integrally stamped and fixed to the base 1. Multiple insertion slots 12 are formed on the outer wall of the base 1 for the jaws 11 to be inserted for limiting, so as to further enhance the limiting stability through the jaws 11. The limiting plate 13 is welded to the outer wall of the bracket 7 to provide further limiting. When the jaws 11 on the bracket 7 are inserted into the insertion slots 12 on the base 1, the bracket 7 and the base 1 are initially connected. This connection method can prevent relative rotation between the bracket 7 and the base 1, further enhancing the limiting stability. After the bracket 7 is installed on the base 1, the limiting plate 13 can cooperate with the corresponding structure on the base 1 to further limit the installation position of the bracket 7, prevent the bracket 7 from moving in the axial and radial directions, and ensure the structural stability and operational reliability of the entire encoder.

[0040] This application can be used in the field of encoders, or in other fields applicable to this application.

[0041] Example 2

[0042] refer to Figure 1 An improvement based on Embodiment 1: a novel hollow encoder, which is applied to the field of encoders;

[0043] Both the bracket 7 and the positioning spring 8 are made of SUS stainless steel, which helps to increase wear resistance. SUS stainless steel has good wear resistance. During the long-term use of the encoder, the shaft 6 will rotate continuously, the protrusion 9 on the positioning spring 8 will frequently contact the positioning groove 10, and the claw 11 on the bracket 7 will continuously cooperate with the insertion groove 12. The SUS stainless steel material can effectively reduce the wear between these components, ensuring the dimensional accuracy and shape stability of the positioning spring 8, protrusion 9, positioning groove 10, claw 11 and insertion groove 12, thereby ensuring the positioning accuracy and signal output stability of the encoder and extending the service life of the encoder.

[0044] However, as is well known to those skilled in the art, the working principles and wiring methods of the PCBA board 2, slotted optocoupler 3, and voltage signal stabilization processing circuit 4 are commonplace and are all conventional methods or common knowledge. They will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0045] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations, but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0046] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. In the absence of conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A novel hollow encoder, characterized in that, include: The base (1) has a rotating shaft (6) inside the base (1) and a bracket (7) is provided on the top of the rotating shaft (6). The rotating shaft (6) and the base (1) are connected by the bracket (7). Functional components are set on the base (1) to enhance the functionality of the hollow encoder; The riveting assembly is located on the top of the base (1) and is used to connect and rivet the base (1), the rotating shaft (6) and the bracket (7).

2. The novel hollow encoder according to claim 1, characterized in that, The functional components include a PCBA board (2), a slotted optocoupler (3), a voltage signal stabilization processing circuit (4), and a PIN (5). The PCBA board (2) is fixedly installed on the inner wall of the base (1). The two slotted optocouplers (3) are attached to the top side of the PCBA board (2). The two slotted optocouplers (3) are staggered to achieve a time difference in the output signal.

3. A novel hollow encoder according to claim 2, characterized in that, Both voltage signal stabilization processing circuits (4) are fixedly installed on the bottom side of the PCBA board (2) to ensure stable signal output. Multiple pins (5) are soldered to the bottom side of the PCBA board (2) to facilitate the customization of power supply pins and output pins.

4. A novel hollow encoder according to claim 3, characterized in that, The inner wall of the rotating shaft (6) is welded with multiple light-blocking teeth (14), which are used in conjunction with the slotted optocoupler (3) on the PCBA board (2).

5. A novel hollow encoder according to claim 1, characterized in that, The riveting assembly includes a positioning spring (8), a protrusion (9), a positioning groove (10), a claw (11), a plug groove (12), and a limiting plate (13). Two positioning springs (8) are fixedly set on the top side of the rotating shaft (6). Each protrusion (9) is welded to the top side of the positioning spring (8). Multiple positioning grooves (10) are opened on the bottom side of the bracket (7) and are engaged with the protrusions (9) to generate a shifting feel.

6. A novel hollow encoder according to claim 5, characterized in that, Multiple claws (11) and brackets (7) are integrally stamped and formed for snapping and fixing onto the base (1). Multiple insertion slots (12) are formed on the outer wall of the base (1) for the claws (11) to be inserted for limiting, so as to further limit by the claws (11). The limiting plate (13) is integrally stamped on the outer wall of the bracket (7) to provide further limiting.

7. A novel hollow encoder according to claim 6, characterized in that, Both the bracket (7) and the positioning spring (8) are made of SUS stainless steel, which helps to increase wear resistance.

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