A new type of gear set absolute value encoder

Abstract

The utility model discloses a novel gear group formula absolute value encoder, including the shell, the four -around of shell left surface all welds have threaded hole post, and have the mounting seat of threaded hole post left side bolt fixing, the shell inside is connected with input shaft structure, and input shaft structure left side and mounting seat are inserted and connected, the right side fixed in the shell inside has the barrier disc structure, the right -hand member of shell can bolt connection has the maintenance cover and carries out the sealing, the surface bolt fixing of maintenance cover has the circuit board, and can electrically connected with magnetic rotation angle sensor on the circuit board. The utility model discloses through the setting of barrier disc structure, cooperation shell to the filling damping lubricating grease between first drive gear, second drive gear, third drive gear and fourth drive gear, absorbs and dissipates vibration energy like this, inhibits the oscillation and noise of gear under the impact and avoids being worn and torn and influences the detection precision.

Description

Technical Field

[0001] This utility model belongs to the field of encoder technology, and in particular relates to a novel gear-type absolute encoder. Background Technology

[0002] Gear-type absolute encoders are a special type of absolute encoder that can accurately measure the absolute angular position of a shaft within a single revolution. They can also record the total number of shaft rotations through an internal mechanical gear set structure. However, when the gear transmission is subjected to impact, it is prone to vibration and noise, which can lead to wear and affect the accuracy of the detection. Furthermore, when the input shaft is subjected to vibration, the teeth of the transmission gears are prone to breakage or misalignment, affecting the overall operation. Summary of the Invention

[0003] The technical problem to be solved by this utility model is to provide a new type of gear-type absolute encoder, which realizes the function of lubrication protection of the gear transmission, avoiding wear during high-speed rotation that affects accuracy, and provides shock absorption protection for the input shaft, avoiding tooth breakage or misalignment of the transmission gear that affects the overall operation.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a novel gear-type absolute encoder, including a housing, with threaded post holes welded around the left surface of the housing, and a mounting base bolted to the left side of the threaded post holes; an input shaft structure is connected inside the housing, and the left side of the input shaft structure is inserted and connected to the mounting base; a barrier disk structure is fixed to the right side inside the housing; a maintenance cover can be bolted to the right end of the housing for sealing; a circuit board is bolted to the surface of the maintenance cover, and a magnetic rotation angle sensor can be electrically connected to the circuit board; a main drive is connected to the middle part of the barrier disk structure. The main drive shaft has a drive column, and a first drive gear is embedded on the outer wall of the main drive shaft. A secondary drive shaft is connected to the outer side of the barrier disk structure, and a second, third, and fourth drive gear are embedded on multiple secondary drive shafts surrounding the outer side of the barrier disk structure. The second, third, and fourth drive gears mesh with the first drive gear. Magnets are embedded at the front ends of both the main and secondary drive shafts. The barrier disk structure includes a sealing disk, inside which a sealing bearing is embedded. A sealing ring is bonded to the outer side of the sealing disk, and connecting holes are provided on the outer sides of both the sealing disk and the sealing ring.

[0005] Compared with the prior art, the beneficial effects of this utility model are as follows: In this invention, the magnetic rotation angle sensor, main drive shaft, auxiliary drive shaft, and magnet are configured to record the total number of rotations of the shaft and accurately measure the absolute angular position of the shaft within a single rotation during the rotation process.

[0006] In this invention, the sealing disc and sealing ring, together with the outer shell, fill the space between the first drive gear, the second drive gear, the third drive gear and the fourth drive gear with damping grease. This absorbs and dissipates vibration energy, suppresses gear oscillation and noise under impact, and prevents wear that could affect detection accuracy.

[0007] In this invention, the connecting hole and the sealed bearing are designed to be installed in a sealed connection with the sealing disc, and are also used for a movable connection with the main drive shaft and the auxiliary drive shaft. Attached Figure Description

[0008] Figure 1 This is a schematic diagram of the structure of this utility model.

[0009] Figure 2 This is a schematic diagram of the structure of this utility model.

[0010] Figure 3 This is a schematic diagram of the barrier disk structure of this utility model.

[0011] Figure 4 This is a schematic diagram of the input shaft structure of this utility model.

[0012] Figures 1 to 4 middle: 1. Housing; 2. Threaded post; 3. Mounting base; 4. Input shaft structure; 41. Input spindle; 42. Disc spring; 43. Flexible coupling; 5. Barrier disc structure; 51. Sealing disc; 52. Sealed bearing; 53. Sealing ring; 54. Connecting hole; 6. Maintenance cover; 7. Circuit board; 8. Magnetic rotation angle sensor; 9. Main drive shaft; 10. First drive gear; 11. Secondary drive shaft; 12. Second drive gear; 13. Third drive gear; 14. Fourth drive gear; 15. Magnet. Detailed Implementation

[0013] The present invention will be further described below with reference to the accompanying drawings: As attached Figure 1 and attached Figure 2As shown, the present invention discloses a novel gear-type absolute encoder, comprising a housing 1, with threaded post 2 welded around the left side of the housing 1, and a mounting base 3 bolted to the left side of the threaded post 2; an input shaft structure 4 is connected inside the housing 1, and the left side of the input shaft structure 4 is inserted and connected to the mounting base 3; a baffle plate structure 5 is fixed to the right side inside the housing 1; a maintenance cover 6 is bolted to the right end of the housing 1 for sealing; a circuit board 7 is bolted to the surface of the maintenance cover 6, and a magnetic rotation angle is electrically connected to the circuit board 7. Sensor 8; The middle part of the barrier disk structure 5 is connected to the main drive shaft 9, and a first drive gear 10 is embedded on the outer wall of the main drive shaft 9; The outer side of the barrier disk structure 5 is connected to the auxiliary drive shaft 11, and a second drive gear 12, a third drive gear 13 and a fourth drive gear 14 are embedded on multiple auxiliary drive shafts 11 around the outer side of the barrier disk structure 5; The second drive gear 12, the third drive gear 13 and the fourth drive gear 14 mesh with the first drive gear 10; Magnets 15 are embedded at the front ends of the main drive shaft 9 and the auxiliary drive shaft 11.

[0014] As attached Figure 3 As shown in the above embodiment, specifically, the barrier disk structure 5 includes a sealing disk 51, and a sealing bearing 52 is embedded inside the sealing disk 51; a sealing ring 53 is glued to the outside of the sealing disk 51, and a connection hole 54 is provided on the outside of both the sealing disk 51 and the sealing ring 53.

[0015] As attached Figure 4 As shown in the above embodiment, specifically, the input shaft structure 4 includes an input spindle 41, with a disc spring 42 sleeved on the left side of the input spindle 41; and an elastic coupling 43 inlaid on the right side of the input spindle 41.

[0016] In the above embodiment, specifically, the sealing disc 51 is fixed to the right side of the inside of the outer casing 1 by bolts through the connecting hole 54.

[0017] In the above embodiments, specifically, the sealing ring 53 on the outer side of the sealing disc 51 is a rubber ring.

[0018] In the above embodiments, specifically, multiple sealed bearings 52 are provided, and all multiple sealed bearings 52 are embedded and connected to the main drive shaft column 9 and the auxiliary drive shaft column 11.

[0019] In the above embodiment, specifically, the input spindle 41 is embedded in the left side of the housing 1 through a bearing, and the left side of the input spindle 41 is interlocked with the mounting base 3 to provide shock absorption and buffering at the connection point.

[0020] In the above embodiment, specifically, the flexible coupling 43 at the right end of the input spindle 41 is embedded and connected to the end of the main drive shaft 9 for further shock absorption and protection, so as to avoid the transmission gear teeth from breaking or misaligning and affecting the overall operation.

[0021] Working principle

[0022] The working principle of this utility model is as follows: When in use, the mounting base 3 is bolted to the designated mounting position, and the input spindle 41 is connected to the working position in conjunction with the disc spring 42. In this way, the working position drives the input spindle 41 to rotate, and through the elastic coupling 43, it drives the main drive shaft 9 to rotate. This, in turn, drives the first drive gear 10 to drive the second drive gear 12, the third drive gear 13, and the fourth drive gear 14 to rotate. Thus, the auxiliary drive shaft 11 and the fourth drive gear 14 can record the total number of rotations of the shaft and accurately measure the absolute angular position of the shaft within a single rotation through the magnetic rotation angle sensor 8 on the circuit board 7.

[0023] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution of this utility model, falls within the protection scope of this utility model.

Claims

1. A novel gear-type absolute encoder, comprising a housing (1), threaded post (2) welded around the left side of the housing (1), and a mounting seat (3) bolted to the left side of the threaded post (2); an input shaft structure (4) connected inside the housing (1), and the left side of the input shaft structure (4) being inserted into the mounting seat (3); a baffle plate structure (5) fixed inside the housing (1); a maintenance cover (6) bolted to the right end of the housing (1) for sealing; a circuit board (7) bolted to the surface of the maintenance cover (6), and a magnetic rotation angle sensor electrically connected to the circuit board (7). (8); A main drive shaft (9) is connected to the middle part of the barrier disk structure (5), and a first drive gear (10) is embedded on the outer wall of the main drive shaft (9); A secondary drive shaft (11) is connected to the outer side of the barrier disk structure (5), and a second drive gear (12), a third drive gear (13) and a fourth drive gear (14) are embedded on multiple secondary drive shafts (11) around the outer side of the barrier disk structure (5); the second drive gear (12), the third drive gear (13) and the fourth drive gear (14) mesh with the first drive gear (10); a magnet (15) is embedded at the front end of both the main drive shaft (9) and the secondary drive shaft (11), characterized in that, The barrier disk structure (5) includes a sealing disk (51), with a sealing bearing (52) embedded inside the sealing disk (51); a sealing ring (53) is glued to the outside of the sealing disk (51), and connecting holes (54) are provided on the outside of both the sealing disk (51) and the sealing ring (53).

2. The novel gear-type absolute encoder as described in claim 1, characterized in that, The input shaft structure (4) includes an input spindle (41), a disc spring (42) is sleeved on the left side of the input spindle (41), and an elastic coupling (43) is inlaid on the right side of the input spindle (41).

3. The novel gear-type absolute encoder as described in claim 1, characterized in that, The sealing disc (51) is fixed to the right side inside the outer casing (1) by bolts through the connecting hole (54).

4. The novel gear-type absolute encoder as described in claim 1, characterized in that, The sealing ring (53) on the outside of the sealing disc (51) is made of rubber.

5. The novel gear-type absolute encoder as described in claim 1, characterized in that, The sealed bearings (52) are provided in multiple ways, and all of the sealed bearings (52) are embedded and connected to the main drive shaft column (9) and the auxiliary drive shaft column (11).

6. The novel gear-type absolute encoder as described in claim 2, characterized in that, The input spindle (41) is embedded in the left side of the housing (1) by a bearing, and the left side of the input spindle (41) is interlocked with the mounting base (3).

7. The novel gear-type absolute encoder as described in claim 2, characterized in that, The elastic coupling (43) at the right end of the input spindle (41) is embedded and connected to the end of the main drive shaft column (9).

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