A magnetic encoder mounting structure

Abstract

This invention addresses the problem of low integration in existing encoders, which leads to inconvenience in installation and debugging. It provides a magnetic encoder mounting structure comprising a housing, a code reader, an upper cover, a bottom cover, and an encoder disk. The encoder disk is rotatably positioned between the upper and bottom covers. The code reader is fixedly mounted on the upper cover, which is also connected to the housing. The housing, in a cover-like shape, covers the code reader, upper cover, bottom cover, and encoder disk within its inner side. This design offers high integration, facilitating pre-debugging and installation, and provides excellent protection.

Description

Technical Field

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

[0002] A magnetic encoder is a sensor that detects rotation angle and number of rotations based on the magnetic induction effect, and it is widely used in mechanical joints. In existing magnetic encoders, the PCB board detection part and the magnetic ring are usually installed separately, that is, on two relatively rotating parts of the device, as shown in patent application publication number CN112344970A. This separate installation method is susceptible to environmental influences; for example, loosening of the connection between the two parts in the mechanical structure can affect the encoder's detection results. More importantly, the separate installation method requires wiring and debugging after installation to adjust the encoder's detection results for joint rotation. The debugging process is complex, and it needs to be re-calibrated after each installation, increasing the difficulty of installation. Therefore, a magnetic encoder mounting structure that allows for pre-calibration and facilitates installation is needed. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies and provide a magnetic encoder mounting structure.

[0004] To solve the above problems, the present invention adopts the following solution: A magnetic encoder mounting structure includes a housing, a code reader, an upper cover, a bottom cover, and an encoder disk; wherein the encoder disk is rotatably disposed between the upper cover and the bottom cover; the code reader is fixedly disposed on the upper cover, and the upper cover is also connected to the housing; the housing is a cover that covers the code reader, the upper cover, the bottom cover, and the encoder disk on its inner side.

[0005] Furthermore, a shaft support is provided between the top cover and the outer shell; one end of the shaft support is fixedly connected to a screw passing through the outer shell; the other end of the shaft support is connected to the top cover.

[0006] Furthermore, the upper cover is provided with an oblong hole that mates with the shaft support member, and the shaft support member is provided with a plug corresponding to the oblong hole, which is embedded in the oblong hole.

[0007] Furthermore, two shaft support members are provided between the upper cover and the outer shell.

[0008] Furthermore, the bottom cover is generally annular, with a recessed circular hole in the middle, into which an encoding disk is embedded; the edge of the bottom cover is connected to the top cover by threads.

[0009] Furthermore, the edge of the encoder disk is generally annular, and a radial slip ring is provided on the outer edge of the encoder disk. The radial slip ring is embedded in the groove on the outer side of the encoder disk; the outer side of the radial slip ring is close to the inner wall of the circular hole on the bottom cover.

[0010] Furthermore, the upper and lower surfaces of the encoder disk are respectively provided with end face slip rings; the two end face slip rings are respectively embedded in the annular grooves provided on the upper and lower surfaces of the encoder disk near their edges.

[0011] Furthermore, the outer shell is provided with a first mounting hole for fixed connection with an external joint; the encoder disk is provided with a second mounting hole for fixed connection with an external joint.

[0012] Furthermore, the upper cover and the bottom cover are respectively provided with notches for alignment, and the notches are located at the outer edges of the upper cover and the bottom cover, respectively.

[0013] Furthermore, the code reading device includes a reading dock for reading information from the code disk; the upper cover is provided with a code reading hole corresponding to the reading dock; the code reading device is fixedly installed on the upper cover by screws, and the reading dock of the code reading device passes through the code reading hole and corresponds to the code disk.

[0014] The beneficial effects of this utility model are as follows: By designing the outer casing and coordinating the positions of the top cover, bottom cover, and encoder disk, an integrated setup is achieved, facilitating pre-debugging and installation. Furthermore, the encoder is protected against impacts and damage. By setting radial slip rings and end face slip rings, the sliding friction between the encoder disk and the upper and lower covers is reduced, thereby reducing the rotational impact on the joints of external connections. By setting up a shaft support component, the connection between the outer shell and the upper cover is realized, and the support adjustment is convenient to adjust the posture of the upper cover relative to the outer shell. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of Example 1; Figure 2 This is an exploded view of the overall structure of Example 1; Figure 3 This is an exploded view of the overall structure of Example 1 from another angle; Figure 4 This is a schematic diagram of the overall structure from another angle of Example 1; Figure 5 This is a bottom view of the overall structure of Example 1; Figure 6 for Figure 5 A schematic diagram of the AA cross-section.

[0016] Explanation of the reference numerals in the attached drawings: 1. Outer shell; 11. First mounting hole; 2. Code reader; 21. Reading dock; 3. Top cover; 31. Waist-shaped hole; 32. Code reader hole; 4. Bottom cover; 5. Encoding disk; 51. End face slip ring; 52. Radial slip ring; 53. Second mounting hole; 54. Magnetic ring; 6. Shaft support; 61. Insert. Detailed Implementation

[0017] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0018] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. Therefore, the figures only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components in the actual implementation. In the actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0019] Example 1: like Figures 1-6 As shown, a magnetic encoder mounting structure includes a housing, a reading device 2, an upper cover 3, a bottom cover 4, and an encoding disk 5. The encoding disk 5 is rotatably mounted between the upper cover 3 and the bottom cover 4. It should be noted that the encoding disk 5 is also fixedly connected to one end of an external mechanical joint, allowing the encoding disk 5 to rotate with that joint. The reading device 2 is fixedly mounted on the upper cover 3, which is also connected to the housing. The housing is also connected to the other end of the external mechanical joint. This fixes the encoding disk 5 and the housing to the two ends of the mechanical joint, allowing the information from the rotation of the encoding disk 5 relative to the reader fixed on the upper cover 3 to be encoded and read. The housing, in a cover-like shape, covers the reading device 2, the upper cover 3, the bottom cover 4, and the encoding disk 5 inside. This protects the magnetic encoding part from the external environment, preventing the magnetic encoding sensor from being bumped by the external mechanical joint during operation. Furthermore, integrating the magnetic encoding mechanism into the housing facilitates installation. It should be noted that a wiring hole is provided on the side of the housing for introducing wiring, which connects to the reading device.

[0020] A shaft support 6 is also provided between the upper cover 3 and the outer shell. One end of the shaft support 6 is provided with a threaded hole, which is fixedly connected to a screw passing through the outer shell. The other end of the shaft support 6 is connected to the upper cover 3. In this example, the upper cover 3 is provided with an oblong hole 31 that mates with the shaft support 6. The shaft support 6 is provided with a plug 61 that corresponds to the oblong hole 31. The plug 61 is embedded in the oblong hole 31, which can ensure the mating direction between the shaft support 6 and the upper cover 3. Two shaft supports 6 are provided between the upper cover 3 and the outer shell. The positional relationship of the two shaft supports 6 mutually restricts each other and forms a positional constraint. The mating relationship between the plug 61 on the two shaft supports 6 and the oblong hole 31 forms an angular mating constraint between the shaft support 6 and the upper cover 3. This allows the screw on the outer shell to be rotated to adjust the angle of the two shaft supports 6, thereby adjusting the tilt angle of the upper cover 3 relative to the outer shell. This allows the encoder to adjust to the posture of the external joint and form a tight mating relationship with the joint.

[0021] The bottom cover 4 is generally annular, with a recessed circular hole in the middle. An encoding disk 5 is embedded in this circular hole, with the edge of the encoding disk 5 close to the inner wall of the circular hole. The edge of the bottom cover 4 is connected to the top cover 3 by threads to clamp and limit the encoding disk 5, placing the encoding disk 5 between the bottom cover 4 and the top cover 3. The top cover 3 and the bottom cover 4 are also provided with notches for alignment, located on the outer edges of the top cover 3 and the bottom cover 4, respectively, to facilitate threaded connection after alignment of the bottom cover 4 and the top cover 3.

[0022] The encoder disk 5 is generally annular in shape, with a circular hole in the center for easy engagement with external joints. A radial slip ring 52 is provided on the outer edge of the encoder disk 5, embedded in a groove on its outer side; the outer surface of the radial slip ring 52 is close to the inner wall of the circular hole on the bottom cover 4. Two end-face slip rings 51 are also provided on the upper and lower surfaces of the encoder disk 5, respectively, embedded in annular grooves near their edges on the upper and lower surfaces. The slip rings reduce rotational friction between the encoder disk 5 and the bottom cover 4 and top cover 3, thereby minimizing the impact on the rotation of external joints. A magnetic ring 54 with magnetic encoding information is also provided on the encoder disk 5, embedded in a countersunk hole in the central area of ​​the encoder disk 5, restricting the position of the magnetic ring 54.

[0023] The outer shell is also provided with several first mounting holes 11 for fixed connection with external joints. The first mounting holes 11 penetrate the outer shell and are fixedly connected to the joints by long screws. The encoder disk 5 is provided with several second mounting holes 53 for fixed connection with external joints. The second mounting holes 53 are located in the area near the inner edge of the annular encoder disk 5. The second mounting holes 53 can fix the positional relationship between the encoder disk 5 and the fixedly connected external joints, and can also determine the position of the bottom cover 4 and the top cover 3 in combination with the connection relationship between the bottom cover 4, the top cover 3 and the encoder disk 5. It should be noted that the second mounting holes 53 also penetrate the magnetic ring 54 on the encoder disk 5 to determine the position of the magnetic ring 54 relative to the encoder disk 5.

[0024] The code reading device 2 includes a reading dock 21 for reading information from the encoder disk 5; the upper cover 3 is provided with a code reading hole 32 corresponding to the reading dock 21; the code reading device 2 is fixedly installed on the upper cover 3 by screws, and the reading dock 21 of the code reading device 2 passes through the code reading hole 32 to form a corresponding relationship with the encoder disk 5, which facilitates the reading of encoder information.

[0025] The above description is merely a specific example of this utility model and does not constitute any limitation on this utility model. Obviously, those skilled in the art, after understanding the content and principle of this utility model, may make various modifications and changes in form and details without departing from the principle and structure of this utility model. However, these modifications and changes based on the concept of this utility model are still within the protection scope of the claims of this utility model.

Claims

1. A magnetic encoder mounting structure characterized by comprising: It includes a housing (1), a code reader (2), a top cover (3), a bottom cover (4), and an encoding disk (5); wherein the encoding disk (5) is rotatably disposed between the top cover (3) and the bottom cover (4); the code reader (2) is fixedly disposed on the top cover (3) and forms a corresponding relationship with the encoding disk (5); the top cover (3) is also connected to the housing (1); the housing (1) is in the shape of a cover and covers the code reader (2), the top cover (3), the bottom cover (4), and the encoding disk (5) on its inner side.

2. A magnetic encoder mounting structure according to claim 1, wherein A shaft support (6) is also provided between the upper cover (3) and the outer shell (1); one end of the shaft support (6) is fixedly connected to a screw passing through the outer shell (1); the other end of the shaft support (6) is connected to the upper cover (3).

3. A magnetic encoder mounting structure according to claim 2, wherein The upper cover (3) is provided with a waist-shaped hole (31) that cooperates with the shaft support (6). The shaft support (6) is provided with a plug (61) that corresponds to the waist-shaped hole (31). The plug (61) is embedded in the waist-shaped hole (31).

4. A magnetic encoder mounting structure according to claim 2, wherein Two shaft support members (6) are provided between the upper cover (3) and the outer shell (1).

5. A magnetic encoder mounting structure according to claim 1, wherein The bottom cover (4) is generally ring-shaped, and the middle part of the bottom cover (4) is set as a recessed circular hole, in which a coding disk (5) is embedded; the edge of the bottom cover (4) is connected to the top cover (3) by threads.

6. A magnetic encoder mounting structure according to claim 5, wherein The encoder disk (5) is in the shape of an annular disk. A radial slip ring (52) is provided on the outer edge of the encoder disk (5). The radial slip ring (52) is embedded in the groove on the outer side of the encoder disk (5). The outer side of the radial slip ring (52) is close to the inner wall of the round hole on the bottom cover (4).

7. A magnetic encoder mounting structure according to claim 6, wherein The upper and lower surfaces of the encoder disk (5) are respectively provided with end face slip rings (51); the two end face slip rings (51) are respectively embedded in the annular grooves provided on the upper and lower surfaces of the encoder disk (5) near their edges.

8. A magnetic encoder mounting structure according to claim 1, wherein The outer shell (1) is also provided with a first mounting hole (11) for fixed connection with an external joint; the encoder disk (5) is provided with a second mounting hole (53) for fixed connection with an external joint.

9. A magnetic encoder mounting structure according to claim 1, wherein The upper cover (3) and the bottom cover (4) are respectively provided with notches for alignment, and the notches are located on the outer edge of the upper cover (3) and the outer edge of the bottom cover (4).

10. The magnetic encoder mounting structure of claim 1, wherein The reading device (2) includes a reading dock (21) for reading information from the encoding disk (5); the upper cover (3) is provided with a reading hole (32) corresponding to the reading dock (21); the reading device (2) is fixedly installed on the upper cover (3) by screws, and the reading dock (21) of the reading device (2) passes through the reading hole (32) and corresponds to the encoding disk (5).

Images