CN219495181U - Built-in rotation angle detection device of gear rack rotation mechanism - Google Patents
Built-in rotation angle detection device of gear rack rotation mechanism Download PDFInfo
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- CN219495181U CN219495181U CN202320433493.2U CN202320433493U CN219495181U CN 219495181 U CN219495181 U CN 219495181U CN 202320433493 U CN202320433493 U CN 202320433493U CN 219495181 U CN219495181 U CN 219495181U
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Abstract
The utility model discloses a built-in rotation angle detection device of a gear rack rotation mechanism, which comprises a turntable and a base body, wherein the turntable and a gear column are of an integrated structure, a mounting frame is arranged on the turntable, and a rotation encoder, a coupler and a bracket are arranged on the inner side of the turntable; the rotary encoder is arranged on the mounting frame, and the centers of the output shaft of the rotary encoder, the coupler and the bracket shaft are arranged on the same axis; the base body is provided with a bracket and a rack cylinder; the upper end of the coupler is connected with the rotary encoder, and the lower end of the coupler is connected with the bracket. The utility model adopts a built-in arrangement mode, has lower requirements on the installation position and the installation space, is convenient for maintenance, has high detection precision, simple structure, lower cost and high working reliability, and simultaneously has the advantages of radial and axial displacement self-correcting function.
Description
Technical Field
The utility model relates to the field of mechanical slewing mechanisms, in particular to a built-in slewing angle detection device of a gear rack slewing mechanism.
Background
In the field of mechanical slewing mechanisms, gear-rack transmission is used as a common mechanical transmission mode, and is widely applied to the field of engineering machinery such as lorry-mounted cranes, gantry trusses and the like with the advantages of high precision, high rigidity, heavy load and the like. Along with the improvement of the intelligent equipment and the control automation degree, the requirements of the engineering machinery related device on the rotation angle detection in the gear-rack transmission process are increasingly increased, and meanwhile, higher requirements on the detection precision are also provided. For detecting the rotation angle of the gear-rack transmission device, the conventional detection method converts the detection of the rotation angle into the measurement of the rotation angle through the number of teeth by using a proximity switch, has low detection precision, and cannot meet the use requirement for a device with higher automatic control requirement. Such as a lorry-mounted crane in the form of a rack-and-pinion drive.
Disclosure of Invention
The utility model aims to: aiming at the defects and the shortcomings of the prior art, the utility model provides the built-in rotation angle detection device for the rack-and-pinion rotation mechanism, which adopts a built-in arrangement mode, has lower requirements on the installation position and the installation space, is convenient to maintain and repair, has the advantages of high detection precision, simple structure, lower cost and high working reliability, and simultaneously has the self-correcting function of radial and axial displacement.
The technical scheme is as follows: the utility model relates to a built-in rotation angle detection device of a gear rack rotation mechanism, which is characterized in that: the rotary table comprises a rotary table and a base body, wherein the rotary table and a gear column are of an integrated structure, a mounting frame is arranged on the rotary table, and a rotary encoder, a coupler and a bracket are arranged on the inner side of the rotary table; the rotary encoder is arranged on the mounting frame, and the centers of the output shaft of the rotary encoder, the coupler and the bracket shaft are arranged on the same axis; the base body is provided with a bracket and a rack cylinder; the upper end of the coupler is connected with the rotary encoder, and the lower end of the coupler is connected with the bracket.
Wherein, the rotation angle detection device adopts a built-in structure.
The main body part of the rotation angle detection device is fixed on the turntable, and the shaft end part and the shaft coupler are fixed on the base body.
The gear column is movably connected with the rack cylinder through a corresponding gear.
Wherein, rotary encoder, shaft coupling and support from top to bottom set gradually.
The beneficial effects are that: compared with the prior art, the utility model has the following remarkable advantages: the mechanism adopts a built-in type rotary encoder driven by gear transmission to directly detect the rotation angle, has high detection precision, low requirements on the installation position and the installation space, is convenient to maintain and repair, has the advantages of high detection precision, simple structure, low cost and high working reliability, and simultaneously has the self-correcting function of radial and axial displacement.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
in the figure, 1 is a turntable; 2 is a mounting rack; 3 is a rotary encoder; 4 is a coupler; 5 is a bracket; 6 is a gear column; 7 is a rack cylinder; 8 is a base body.
Detailed Description
The technical scheme of the utility model is further described below with reference to the accompanying drawings and the specific embodiments.
Aiming at the problems that the conventional detection method is low in detection precision, even incapable of detection and the like, such as a lorry-mounted crane in a rack-and-pinion transmission mode, the following solutions are mainly provided: 1. the external arrangement form is adopted, the rotary encoder is driven by gear transmission to directly detect the rotation angle, the gear transmission precision is related to the number of teeth and the modulus of the gear, and the detection precision is not high. 2. The bottom of the rack cylinder is additionally provided with a hysteresis expansion displacement sensor, and the purpose of detecting the rotation angle is achieved by detecting the linear displacement of the rack. The existence detection precision is not high; high manufacturing cost, complex structure, poor maintainability, lower working reliability and the like.
In view of the above, the utility model provides a built-in rotation angle detection device of a rack-and-pinion rotation mechanism, which comprises a turntable 1 and a base body 8, wherein the turntable 1 and a gear column 6 are of an integrated structure, a mounting frame 2 is arranged on the turntable 1, and a rotation encoder 3, a coupler 4 and a bracket 5 are arranged on the inner side of the turntable 1; the rotary encoder 3 is arranged on the mounting frame 2, and the centers of an output shaft of the rotary encoder 3, the coupler 4 and a shaft of the bracket 5 are on the same axis; the base body 8 is provided with a bracket 5 and a rack cylinder 7; the upper end of the coupler 4 is connected with the rotary encoder 3, and the lower end is connected with the bracket 5. The rotation angle detection device adopts a built-in structure. The main body portion of the rotation angle detecting device is fixed to the turntable 1, the shaft end portion and the coupling 4 are fixed to the base body 8, and the main body portion rotates with the rotation of the turntable 1. The gear column 6 is movably connected with the rack cylinder 7 through corresponding gears. The rotary encoder 3, the coupler 4 and the bracket 5 are sequentially arranged from top to bottom.
Working principle: when the rack cylinder 7 moves, the gear column 6 is driven to rotate, the gear column 6 drives the turntable to rotate, the shaft connected with the coupler 4 of the rotary encoder 3 is not moved, and the upper end of the rotary encoder 3 rotates together with the turntable. The rotary encoder 3 can accurately detect the rotation angle.
The coupler 4 has radial and axial deviation rectifying capability, and the use of the coupler 4 reduces the installation precision requirement of the pinion, plays a certain role in buffering radial and axial offset loads generated in the meshing process of the gear and the rack, and has the function of self-rectifying radial and axial displacement. Thereby weakening or even blocking the transmission of unbalanced load to the rotary encoder 3, protecting the rotary encoder 3, improving the working reliability of the mechanism and prolonging the service life of the mechanism. The mounting frame 2 not only can be used for supporting the rotary encoder 3, but also can be used for protecting the coupler 4 and avoiding the influence of external force on the coupler 4.
Claims (5)
1. The utility model provides a built-in rotation angle detection device of rack and pinion rotation mechanism which characterized in that: the rotary table comprises a rotary table (1) and a base body (8), wherein the rotary table (1) and a gear column (6) are of an integrated structure, a mounting frame (2) is arranged on the rotary table (1), and a rotary encoder (3), a coupler (4) and a bracket (5) are arranged on the inner side of the rotary table (1); the rotary encoder (3) is arranged on the mounting frame (2), and the centers of an output shaft of the rotary encoder (3), the coupler (4) and a shaft of the bracket (5) are arranged on the same axis; a bracket (5) and a rack cylinder (7) are arranged on the base body (8); the upper end of the coupler (4) is connected with the rotary encoder (3), and the lower end is connected with the bracket (5).
2. The rack and pinion swing mechanism built-in swing angle detecting device according to claim 1, wherein: the rotation angle detection device adopts a built-in structure.
3. The rack and pinion swing mechanism built-in swing angle detecting device according to claim 1, wherein: the main body part of the rotation angle detection device is fixed on a turntable (1), and the shaft end part and a shaft coupling (4) are fixed on a base body (8).
4. The rack and pinion swing mechanism built-in swing angle detecting device according to claim 1, wherein: the gear column (6) is movably connected with the rack cylinder (7) through corresponding gears.
5. The rack and pinion swing mechanism built-in swing angle detecting device according to claim 1, wherein: the rotary encoder (3), the coupler (4) and the bracket (5) are sequentially arranged from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320433493.2U CN219495181U (en) | 2023-03-09 | 2023-03-09 | Built-in rotation angle detection device of gear rack rotation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320433493.2U CN219495181U (en) | 2023-03-09 | 2023-03-09 | Built-in rotation angle detection device of gear rack rotation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219495181U true CN219495181U (en) | 2023-08-08 |
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ID=87478822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320433493.2U Active CN219495181U (en) | 2023-03-09 | 2023-03-09 | Built-in rotation angle detection device of gear rack rotation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219495181U (en) |
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2023
- 2023-03-09 CN CN202320433493.2U patent/CN219495181U/en active Active
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