Double-code-disc encoder

Abstract

The utility model discloses a double-coded-disc encoder, and relates to the technical field of encoders. Comprising a shell, an inner cavity of the shell is connected with a circuit board through a supporting plate, a first code disc and a second code disc which are arranged in a nested mode and are coaxial are installed on the side, located on the circuit board, of the inner cavity of the shell, and a first reading head for reading the first code disc and a second reading head for reading the second code disc are installed on the circuit board. A connecting wire electrically connected with the circuit board is installed on the shell, a fixing block is installed on the shell, the fixing block is detachably connected with a fixing cylinder, the fixing cylinder is detachably connected with an installation rod, and a wire clamp through which the connecting wire penetrates is installed on the installation rod. According to the double-code-disc encoder, the first code disc and the second code disc are coaxially nested in an open-phase manner and are separated from each other, and the first reading head and the second reading head on the circuit board are matched, so that numerical values of the code discs can be conveniently read.

Description

Technical Field

[0001] The utility model relates to the technical field of encoders, in particular to a double-code disc encoder. Background Art

[0002] The encoder is a part of the digital encoder that measures angular displacement. It has the advantages of strong resolution, high measurement accuracy and reliable operation. It is the most common displacement sensor for measuring the angular position of the shaft. The code disk is divided into two types: absolute encoder and incremental encoder. The former can directly give a digital code relative to the angular position, and the latter uses a computer system to add or subtract the pulse amount generated by the rotating code disk against a certain reference number to obtain the angular displacement.

[0003] In the encoder of the prior art, if two angular displacement data need to be measured in the measured system, two encoders need to be installed. The first encoder and the second encoder are far apart, occupying a large space and being inconvenient to install and disassemble. Utility Model Content

[0004] The utility model provides a double-code disc encoder to solve the problems in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a dual-code disc encoder, comprising a shell, an inner cavity of the shell is connected to a circuit board through a support plate, the inner cavity of the shell is located on one side of the circuit board and is installed with a first code disc and a second code disc that are nested and coaxial, a first reading head for reading the first code disc and a second reading head for reading the second code disc are installed on the circuit board, a connecting wire electrically connected to the circuit board is installed on the shell, a fixing block is installed on the shell, the fixing block is detachably connected to a fixing cylinder, the fixing cylinder is detachably connected to a mounting rod, and a wire card through which the connecting wire passes is installed on the mounting rod.

[0006] Furthermore, a reducer whose output shaft is connected to the first code disc is installed in the inner cavity of the shell, and an input shaft that passes through the output shaft of the reducer and is connected to the second code disc is installed on the shell.

[0007] Furthermore, a through hole is formed at the end of the fixing tube, and through slots connected to the through hole are formed on both sides thereof, and one end of the mounting rod passes through the through hole and the through slot.

[0008] Furthermore, the through hole at the end of the fixing tube is threadedly connected to a clamping column that can clamp the mounting rod.

[0009] Furthermore, an operation hole is provided at the end of the clamping column.

[0010] Furthermore, the material of the fixing block is iron, and a magnetic block connected to the magnetic core of the fixing block is installed at one end of the fixing cylinder.

[0011] Compared with the prior art, the utility model provides a dual-code disc encoder, which has the following beneficial effects: the dual-code disc encoder, the first code disc and the second code disc are coaxially nested and closely spaced, and cooperate with the first reading head and the second reading head on the circuit board to facilitate reading the value of the code disc. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a schematic diagram of the planar structure of the utility model;

[0014] Figure 3 It is an enlarged schematic diagram of point A of the utility model;

[0015] Figure 4 It is an enlarged schematic diagram of point B of the present utility model.

[0016] In the figure: 1. housing; 2. circuit board; 3. first code disc; 4. second code disc; 5. first reading head; 6. second reading head; 7. reducer; 8. input shaft; 9. connecting wire; 10. fixing cylinder; 11. mounting rod; 12. wire clamp; 13. slot; 14. clamping column; 15. operating hole; 16. fixing block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-4 The utility model discloses a dual-code disc encoder, comprising a shell 1, an inner cavity of the shell 1 is connected to a circuit board 2 through a supporting plate, a first code disc 3 and a second code disc 4 are installed on one side of the inner cavity of the shell 1 and are nested and coaxial, a first reading head 5 for reading the first code disc 3 and a second reading head 6 for reading the second code disc 4 are installed on the circuit board 2, a connecting line 9 electrically connected to the circuit board 2 is installed on the shell 1, a fixing block 16 is installed on the shell 1, the fixing block 16 is detachably connected to a fixing cylinder 10, the fixing cylinder 10 is detachably connected to a mounting rod 11, and a wire card 12 passed by the connecting line 9 is installed on the mounting rod 11.

[0019] The number of the first reading head 5 and the number of the second reading head 6 are both two, and the first reading head 5 and the second reading head 6 are located on the same plane.

[0020] Specifically, a reducer 7 whose output shaft is connected to the first code disc 3 is installed in the inner cavity of the housing 1 , and an input shaft 8 that penetrates the output shaft of the reducer 7 and is connected to the second code disc 4 is installed on the housing 1 .

[0021] Specifically, a through hole is formed at the end of the fixing tube 10 , and through slots 13 communicating with the through hole are formed on both sides of the fixing tube 10 . One end of the mounting rod 11 passes through the through hole and the through slot 13 .

[0022] In this embodiment, the mounting rod 11 can be detachably connected to the fixing cylinder 10, so that the line card 12 can be removed and installed.

[0023] Specifically, the through hole at the end of the fixing tube 10 is threadedly connected to a pressing column 14 that can press the mounting rod 11 .

[0024] In this embodiment, the outer wall of the clamping column 14 is provided with an external thread, and the inner wall of the fixing tube 10 is provided with an internal thread. When the clamping column 14 clamps the mounting rod 11 slightly loosely, the mounting rod 11 can rotate relatively to adjust the angle of the connecting line 9 limited by the line clamp 12.

[0025] Specifically, an operation hole 15 is formed at the end of the pressing column 14 .

[0026] In this embodiment, the operation hole 15 can be a hexagonal hole so as to be operated and installed by a hexagonal wrench, and the operation hole 15 can also be a cross hole.

[0027] Specifically, the material of the fixing block 16 is iron, and a magnetic block connected to the magnetic core of the fixing block 16 is installed at one end of the fixing cylinder 10 .

[0028] In this embodiment, the fixing barrel 10 is magnetically connected to the fixing block 16 through the magnetic block at the end thereof, so as to achieve the function of installing the fixing barrel 10 and the line card 12, and facilitate the removal and installation of the line card 12.

[0029] In summary, in the dual-code disc encoder, the first code disc 3 and the second code disc 4 are coaxially nested and closely spaced, and cooperate with the first reading head 5 and the second reading head 6 on the circuit board 2 to facilitate reading the value of the code disc.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A dual-disc encoder, comprising a housing (1), characterized in that: The inner cavity of the shell (1) is connected to the circuit board (2) via a support plate; the inner cavity of the shell (1) is provided with a first code disk (3) and a second code disk (4) which are nested and coaxial with each other, the circuit board (2) is provided with a first reading head (5) for reading the first code disk (3), and a second reading head (6) for reading the second code disk (4); the shell (1) is provided with a connecting wire (9) which is electrically connected to the circuit board (2); the shell (1) is provided with a fixing block (16); the fixing block (16) is detachably connected to a fixing cylinder (10); the fixing cylinder (10) is detachably connected to a mounting rod (11); the mounting rod (11) is provided with a wire card (12) through which the connecting wire (9) passes.

2. A dual code disc encoder according to claim 1, characterized in that: The inner cavity of the housing (1) is provided with a reducer (7) whose output shaft is connected to the first code disc (3), and the housing (1) is provided with an input shaft (8) which passes through the output shaft of the reducer (7) and is connected to the second code disc (4).

3. A dual code disc encoder according to claim 1, characterized in that: A through hole is formed at the end of the fixing tube (10), and through slots (13) communicating with the through hole are formed on both sides thereof. One end of the mounting rod (11) passes through the through hole and the through slot (13).

4. A dual code disc encoder according to claim 3, characterized in that: The through hole at the end of the fixing cylinder (10) is threadedly connected to a pressing column (14) which can press the mounting rod (11).

5. A dual code disc encoder according to claim 4, characterized in that: An operating hole (15) is provided at the end of the pressing column (14).

6. A dual code disc encoder according to claim 1, characterized in that: The material of the fixing block (16) is iron, and one end of the fixing cylinder (10) is provided with a magnetic block connected to the magnetic core of the fixing block (16).

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