Eccentric shaft adjusting device for gear meshing backlash of rotating mechanism and adjusting method of eccentric shaft adjusting device

Abstract

The eccentric shaft adjusting device for the gear meshing backlash of the rotating mechanism comprises a rotating disc structure, an upper positioning ring and a lower positioning ring are welded to the top and the bottom of the rotating disc structure in advance, and the rotating disc structure is integrally machined and formed through a machining center so that the concentricity of the upper positioning ring and the lower positioning ring can be guaranteed; the speed reducer is installed in the rotating disc structure from top to bottom in the vertical direction, the central axis of the speed reducer and the central axis of the rotating disc structure are eccentrically arranged, the speed reducer is rotationally connected with a flange plate through a connecting flange, the flange plate is in bolt connection with the upper positioning ring, and the connecting flange, the flange plate and the rotating disc structure are concentrically arranged. The speed reducer can rotate in the circumferential direction around the central axis of the flange plate through the connecting flange. Through cooperation of the eccentric shaft structure and the positioning ring, rapid and accurate adjustment of the gear meshing backlash is achieved, on-site welding is avoided, and the assembly precision and efficiency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of rotary machinery transmission applications, and particularly to an eccentric shaft adjustment device for the meshing backlash of a rotary mechanism gear and an adjustment method thereof. Background Art

[0002] In large transportation machinery and equipment such as cranes, the meshing accuracy between the small gear on the output shaft of the speed reducer in the rotary mechanism and the internal gear ring directly affects the operation stability and service life of the equipment. The traditional method for adjusting the meshing backlash relies on on-site welding and positioning of the lower positioning ring. This method has the following defects: the adjustment accuracy of on-site welding is greatly affected by human factors, and it is difficult to ensure concentricity; the adjustment process is cumbersome, requiring multiple disassembly, assembly, and measurement, resulting in low efficiency; the welding thermal deformation may cause accuracy deviation of the positioning structure, affecting the long-term operation reliability. Therefore, the present invention proposes an eccentric shaft adjustment device for the meshing backlash of a rotary mechanism gear and an adjustment method thereof. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide an eccentric shaft adjustment device for the meshing backlash of a rotary mechanism gear and an adjustment method thereof, which realizes the rapid and precise adjustment of the meshing backlash of the gear through the cooperation of the eccentric shaft structure and the positioning ring, avoids on-site welding, and improves the assembly accuracy and efficiency.

[0004] To solve the above technical problem, a technical solution adopted by the present invention is: to provide an eccentric shaft adjustment device for the meshing backlash of a rotary mechanism gear, including a turntable structure. The upper positioning ring and the lower positioning ring are pre-welded to the top and bottom of the turntable structure respectively, and are integrally processed by a machining center to ensure the concentricity of the upper positioning ring and the lower positioning ring. The speed reducer is installed into the turntable structure vertically from top to bottom, and its central axis is eccentrically arranged with the central axis of the turntable structure. The speed reducer is rotationally connected with a flange plate through a connecting flange, and the flange plate is bolted to the upper positioning ring. The connecting flange, the flange plate, and the turntable structure are concentrically arranged. The speed reducer can rotate circumferentially around the central axis of the flange plate through the connecting flange. The eccentric shaft is installed at the output end of the speed reducer, and a driving gear meshing with an external internal gear ring is installed at the lower end of the eccentric shaft. The adjustment mechanism and the locking mechanism are bolted to a position near one side of the top of the flange plate, and are used to precisely control the rotation angle of the speed reducer and lock and limit it, so as to realize the adjustment of the meshing backlash between the driving gear and the internal gear ring. The positioning assembly is bolted to the bottom of the turntable structure and is used to stabilize the lower end of the eccentric shaft.

[0005] The present invention is further arranged as: a connecting flange is bolted to a position near the top of the outer wall of the speed reducer. A pressure-bearing bearing is arranged between the connecting flange and the flange plate, and the top and bottom of the pressure-bearing bearing are respectively interference-connected to the connecting flange and the flange plate.

[0006] Through the above technical solution, it is convenient to use a pressure-bearing bearing to enable the connecting flange to rotate stably during rotation, reduce the difficulties for the staff during adjustment, and improve the convenience and efficiency of adjustment.

[0007] The present invention is further configured as: a plurality of scale marking strips are evenly distributed in the circumferential direction near the inner wall at the top of the flange plate, and an identifier corresponding and cooperating with the scale marking strips is provided on the outer wall of the connecting flange.

[0008] Through the above technical solution, when the connecting flange is rotated, it is convenient to directly view the rotation angle through the movement of the identifier on the scale marking strip, so as to calculate the traveling distance of the bottom driving gear.

[0009] The present invention is further configured as: the adjusting mechanism includes a U-shaped frame bolted to the top of the flange plate. Threaded cylinders are fixedly connected to both sides of the U-shaped frame. Threaded rods are threadedly connected to the inner walls of the two threaded cylinders. Rotating torsion blocks are fixedly connected to the opposite end faces of the two threaded rods. The opposite end faces of the two threaded rods abut against both sides of a pushing column threadedly connected to the side wall of the connecting flange.

[0010] Through the above technical solution, the two rotating torsion blocks are adjusted successively. The rotation of one rotating torsion block drives the corresponding threaded rod to move inside the corresponding threaded cylinder, so that the end face of the threaded rod moves away from the pushing column, leaving a movable space for adjustment. The other rotating torsion block drives its corresponding threaded rod to squeeze the pushing column, and drives the connecting flange to rotate in a certain direction on the flange plate through it.

[0011] The present invention is further configured as: the two threaded rods respectively penetrate through the two threaded cylinders, and the opposite end faces of the two threaded rods are both tapered, and at the same time abut against the smooth planes opened on both sides of the pushing column.

[0012] Through the above technical solution, by using the tapered setting of the end face of the threaded rod, it can continuously squeeze the side of the pushing column and perform stable and precise pushing on the smooth plane, thereby driving the reducer on the connecting flange to perform fine adjustment operations.

[0013] The present invention is further configured as: the locking mechanism includes a locking block snap-fitted to the top of the flange plate. A fastening bolt penetrates through the middle of the locking block, and one end of the fastening bolt is threadedly connected to the inner wall of a locking hole opened on the side wall of the connecting flange.

[0014] Through the above technical solution, the fastening bolt can be used to connect and fix the locking block snap-fitted on the flange plate, so as to connect and fix the connecting flange and the flange plate.

[0015] The present invention is further configured such that: the locking block is sector-shaped, and a locking groove matching the scale marking strip is provided at the bottom thereof. The locking block is press-fitted and connected to a plurality of corresponding scale marking strips through a plurality of locking grooves provided at its bottom.

[0016] Through the above technical solution, the sector-shaped locking block is conveniently installed on the top of the flange, and the locking groove inside it enables it to be stably clamped on the top of the flange. The scale marking strip can limit and fix the locking block, thereby fixing the adjusted position of the connecting flange.

[0017] The present invention is further configured such that: the upper end of the eccentric shaft is connected to the output end of the reducer through a coupling, and its lower end penetrates the positioning assembly and is rotatably connected thereto.

[0018] Through the above technical solution, it is convenient for the output shaft of the reducer to stably drive the rotation of the eccentric shaft, and under the action of the positioning assembly, the eccentric shaft can rotate stably.

[0019] The present invention is further configured such that: the positioning assembly includes an end cover riveted to the inner wall of the turntable structure. An activity hole is provided at the center of the end cover. The eccentric shaft penetrates the activity hole and can be adjusted movably inside the activity hole. A positioning cover is bolted to the bottom of the end cover, and the positioning cover is sleeved on the outer wall of the eccentric shaft through a bearing with interference fit at its center.

[0020] Through the above technical solution, the activity hole provided inside the end cover facilitates the eccentric shaft to have a certain activity space during adjustment, and under the action of the positioning cover, the position of the adjusted eccentric shaft can be positioned, enabling it to rotate stably during driving and ensuring the stable side clearance between the driving gear and the internal gear ring.

[0021] On the other hand, a method for adjusting the eccentric shaft of a rotating mechanism gear meshing side clearance adjustment device is provided, including the following steps: S1. First, the upper positioning ring and the lower positioning ring are pre-welded to the top and bottom of the turntable structure, and the integration of the three is realized through a machining center to ensure the concentricity of the three; S2. The flange is installed at the bottom of the external connecting flange of the reducer through a pressure-bearing bearing, and then it is loaded into the inside of the turntable structure from top to bottom. The flange is pre-rotated and adjusted on the upper positioning ring to enable the driving gear and the internal gear ring to be pre-positioned and meshed, and the flange is installed on the upper positioning ring with bolts; S3. The end cover on the positioning assembly is pre-bolted to the bottom of the turntable structure, and the positioning cover is temporarily separated to facilitate the later positioning and fixation of the adjusted eccentric shaft; S4. Drive a rotating torsion block on the adjustment mechanism, which drives the corresponding lead screw to move inside the corresponding threaded barrel, so that the end face of the lead screw moves away from the push column, leaving an adjustable space for movement; S5. Then drive another rotating torsion block to drive the corresponding lead screw to move inside its corresponding threaded barrel, so that its end face abuts against the push column, and apply pressure to make the push column drive the connecting flange to rotate. At this time, the connecting flange drives the eccentrically installed reducer to rotate in a circle on the flange plate, and perform fine adjustment through the identifier on the connecting flange and the scale marking strip on the flange plate, so that the tooth surface of the drive gear at the end face of the eccentric shaft approaches the tooth surface of the internal gear ring to achieve the adjustment of the meshing clearance (there is an eccentricity e between the axis of the eccentric shaft and the central axis of the turntable structure. When the connecting flange rotates by an angle θ, the center of the drive gear at the lower end of the eccentric shaft moves a distance s = 2e*sin(θ / 2) along the circumferential direction, thereby changing the meshing clearance between the drive gear and the internal gear ring); S6. Return the rotating torsion block that reserves the space, so that the lead screw abuts against the adjusted push column, and press the locking block through the locking groove and lock it on the scale marking strip. At the same time, use the fastening bolt to fix it on the connecting flange to fix the adjusted reducer; S7. Finally, install the positioning cover on the end cover through bolts to ensure the stability of the rotation position of the lower end of the eccentric shaft, so that the drive gear and the internal gear ring maintain a stable side clearance during meshing operation.

[0022] The beneficial effects of the present invention are as follows: 1. High-precision positioning: The upper and lower positioning rings are integrally processed by a machining center to ensure concentricity and avoid the errors of traditional welding adjustment; 2. Convenient adjustment: Utilize the cooperation of the eccentric shaft and the rotatable flange, and the gear side clearance can be adjusted by rotating the flange, without on-site welding, reducing the number of disassembly and assembly; 3. Strong adaptability: The side clearance can be quantitatively adjusted through the identifier and the scale marking strip to meet the meshing accuracy requirements under different working conditions; 4. High reliability: Eliminate the influence of welding thermal deformation, with good structural stability and strong long-term operation accuracy retention. Brief Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the running trajectories of the rotating mechanism and the internal gear ring in the present invention; Figure 2 It is a connecting cross-sectional view of the rotating mechanism and the internal gear ring in the present invention; Figure 3 It is a connecting schematic diagram of the drive gear and the internal gear ring in the present invention; Figure 4 It is a partial structure diagram of the rotating mechanism in the present invention; Figure 5It is the partial sectional view structure diagram of the rotating mechanism in the present invention; Figure 6 It is the exploded view of the components installed on the reducer in the present invention; Figure 7 It is the structure diagram of the accelerator in the present invention; Figure 8 It is the connection schematic diagram of the eccentric shaft and the reducer in the present invention; Figure 9 is Figure 7 the enlarged view of part A in Figure 10 It is the structure diagram of the locking mechanism in the present invention.

[0024] In the figure: 1. Turntable structure; 11. Upper positioning ring; 12. Lower positioning ring; 2. Reducer; 21. Connecting flange; 211. Pushing column; 212. Locking hole; 3. Flange plate; 31. Scale marking strip; 4. Adjusting mechanism; 41. U-shaped frame; 42. Threaded barrel; 43. Lead screw; 44. Rotating knob; 5. Locking mechanism; 51. Locking block; 511. Locking groove; 52. Tightening bolt; 6. Eccentric shaft; 7. Driving gear; 8. Positioning component; 81. End cover; 82. Moving hole; 83. Positioning cover; 9. Internal gear ring. Specific implementation mode

[0025] The following elaborates on the preferred embodiments of the present invention in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making the protection scope of the present invention more clearly defined.

[0026] Such as Figures 1 - 6As shown in the figure, an eccentric shaft adjustment device for the backlash of a rotating mechanism gear engagement includes a turntable structure 1. Upper and lower positioning rings 11 and 12 are pre-welded to the top and bottom of the turntable structure 1 and are integrally machined by a machining center to ensure the concentricity of the upper positioning ring 11 and the lower positioning ring 12. A brake and a motor are sequentially connected to the top of the reducer 2. When the motor is started, its output shaft drives the input shaft of the reducer 2 to rotate through the brake, and the internal rotating shaft can be controlled to stop rotating through the brake. The reducer 2 is installed vertically into the turntable structure 1 from top to bottom, and its central axis is eccentrically arranged with the central axis of the turntable structure 1. The reducer 2 is rotatably connected to a flange plate 3 through a connecting flange 21. The flange plate 3 is bolted to the upper positioning ring 11. The connecting flange 21, the flange plate 3, and the turntable structure 1 are concentrically arranged. The reducer 2 can rotate circumferentially around the central axis of the flange plate 3 through the connecting flange 21. A connecting flange 21 is bolted to the outer wall of the reducer 2 near the top. A bearing under pressure is arranged between the connecting flange 21 and the flange plate 3, and the top and bottom of the bearing under pressure are respectively interference-fitted to the connecting flange 21 and the flange plate 3, which is convenient for the connecting flange 21 to rotate stably when rotating by using the bearing under pressure, reducing the difficulty for the staff during adjustment and improving the convenience and efficiency of adjustment. A plurality of scale marking strips 31 are evenly distributed circumferentially near the inner wall of the top of the flange plate 3. At the same time, an identifier corresponding to the scale marking strips 31 is arranged on the outer wall of the connecting flange 21, which is convenient for intuitively viewing the rotation angle by the movement of the identifier on the scale marking strips 31 when the connecting flange 21 is rotated, so as to calculate the traveling distance of the bottom driving gear 7; As Figure 7 and Figure 8 shown in the figure, an eccentric shaft 6 is installed at the output end of the reducer 2, and a driving gear 7 engaged with an external internal gear ring 9 is installed at the lower end of the eccentric shaft 6. The upper end of the eccentric shaft 6 is connected to the output end of the reducer 2 through a coupling. Its lower end passes through a positioning component 8 and is rotatably connected to it, which is convenient for the output shaft of the reducer 2 to stably drive the rotation of the eccentric shaft 6, and under the action of the positioning component 8, the eccentric shaft 6 can rotate stably.

[0027] As Figure 9 and Figure 10As shown in the figure, the adjustment mechanism 4 and the locking mechanism 5 are bolted to the top near one side of the flange 3, and are used to accurately control the rotation angle and locking limit of the reducer 2, so as to realize the adjustment of the meshing backlash between the driving gear 7 and the internal gear ring 9. The adjustment mechanism 4 includes a U-shaped frame 41 bolted to the top of the flange 3. Threaded cylinders 42 are fixedly connected to both sides of the U-shaped frame 41. The inner walls of the two threaded cylinders 42 are threadedly connected with lead screws 43. The two lead screws 43 respectively penetrate through the two threaded cylinders 42, and the opposite end faces of the two lead screws 43 are tapered. At the same time, they are pressed against the smooth planes opened on both sides of the push column 211. By using the tapered setting of the end face of the lead screw 43, it can continuously squeeze the side of the push column 211 and perform stable and precise pushing on the smooth plane, thereby driving the reducer 2 on the connecting flange 21 to perform fine adjustment operations. Opposite end faces of the two lead screws 43 are fixedly connected with rotation knobs 44. Opposite end faces of the two lead screws 43 are pressed against both sides of the push column 211 threadedly connected to the side wall of the connecting flange 21. The two rotation knobs 44 are adjusted respectively. The rotation of one rotation knob 44 drives the corresponding lead screw 43 to move inside the corresponding threaded cylinder 42, so that the end face of the lead screw 43 moves away from the push column 211, leaving an adjustable space for it. The other rotation knob 44 drives its corresponding lead screw 43 to squeeze the push column 211, and drives the connecting flange 21 to rotate in a certain direction on the flange 3 through it; The locking mechanism 5 includes a locking block 51 snap-fitted to the top of the flange 3. The locking block 51 is fan-shaped, and a locking groove 511 is opened at the bottom, which is matched with the scale marking strip 31. The locking block 51 is press-fitted and connected to a plurality of corresponding scale marking strips 31 through a plurality of locking grooves 511 opened at its bottom. The fan-shaped locking block 51 is convenient to be installed on the top of the flange 3, and the internal locking groove 511 enables it to be stably snap-fitted on the top of the flange 3. The scale marking strip 31 can limit and fix the locking block 51, so as to fix the position of the connecting flange 21 after adjustment. A fastening bolt 52 is penetrated through the middle of the locking block 51, and one end of the fastening bolt 52 is threadedly connected to the inner wall of the locking hole 212 opened on the side wall of the connecting flange 21. The fastening bolt 52 can connect and fix the locking block 51 snap-fitted on the flange 3, so as to connect and fix the connecting flange 21 and the flange 3.

[0028] As Figure 6As shown, the positioning component 8 is bolted to the bottom of the turntable structure 1 and is used to stabilize the lower end of the eccentric shaft 6. The positioning component 8 includes an end cover 81 riveted to the inner wall of the turntable structure 1. An activity hole 82 is provided at the center of the end cover 81. The eccentric shaft 6 passes through the activity hole 82 and can be adjusted movably inside the activity hole 82. A positioning cover 83 is bolted to the bottom of the end cover 81, and the positioning cover 83 is sleeved on the outer wall of the eccentric shaft 6 through a bearing with interference fit at its center. The activity hole 82 provided inside the end cover 81 facilitates the eccentric shaft 6 to have a certain activity space when being adjusted. And under the action of the positioning cover 83, the position of the adjusted eccentric shaft 6 can be positioned, so that it can rotate stably during driving, ensuring the stability of the side clearance between the driving gear 7 and the internal gear ring 9.

[0029] As Figures 1 - 10 shown, a method for adjusting an eccentric shaft of a gear meshing side clearance of a rotating mechanism includes the following steps: S1. First, the upper positioning ring 11 and the lower positioning ring 12 are pre-welded to the top and bottom of the turntable structure 1 respectively, and the integration of the three is realized through a machining center to ensure the concentricity of the three; S2. The flange 3 is installed at the bottom of the external connection flange 21 of the reducer 2 through a bearing under pressure, and then it is loaded into the turntable structure 1 from top to bottom. And the flange 3 is pre-rotated and adjusted on the upper positioning ring 11 so that the driving gear 7 and the internal gear ring 9 are pre-positioned and meshed, and the flange 3 is installed on the upper positioning ring 3 with bolts; S3. The end cover 81 on the positioning component 8 is pre-bolted to the bottom of the turntable structure 1, while the positioning cover 83 is temporarily separated to facilitate the positioning and stabilization of the adjusted eccentric shaft 6 later; S4. Drive a rotating block 44 on the adjustment mechanism 4, which drives the corresponding lead screw 43 to move inside the corresponding threaded barrel 42, so that the end face of the lead screw 43 moves away from the push column 211, leaving an activity space for adjustment; S5. Then drive another rotating torsion block 44 to drive the corresponding lead screw 43 to move inside its corresponding threaded barrel 42, so that its end face abuts against the push column 211, and apply pressure to make the push column 211 drive the connecting flange 21 to rotate. At this time, the connecting flange 21 drives the eccentrically installed reducer 2 to rotate circumferentially on the flange plate 3, and perform corresponding fine adjustment through the identifier on the connecting flange 21 and the scale marking strip 31 on the flange plate 3, so that the tooth surface of the driving gear 7 at the end face of the eccentric shaft 6 approaches the tooth surface of the internal gear ring 9 through the circumferentially rotating reducer 2, so as to achieve the adjustment of the meshing clearance (there is an eccentricity e between the axis of the eccentric shaft 6 and the central axis of the turntable structure 1. When the connecting flange 21 rotates by an angle θ, the center of the driving gear 7 at the lower end of the eccentric shaft 6 moves a distance s = 2e*sin(θ / 2) along the circumferential direction, thereby changing the meshing clearance between the driving gear 7 and the internal gear ring 9); S6. Return to drive the rotating torsion block 44 in the reserved space, so that the lead screw 43 abuts against the adjusted push column 22, and press and lock the locking block 51 on the scale marking strip 31 through the locking groove 511, and at the same time fix it on the connecting flange 21 with the fastening bolt 52 to realize the fixation of the adjusted reducer 2; S7. Finally, install the positioning cover 83 on the end cover 81 through bolts to ensure the stability of the rotation position of the lower end of the eccentric shaft 6, so that the driving gear 7 and the internal gear ring 9 maintain a stable side clearance during meshing operation.

[0030] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural or equivalent process transformations made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are equally included in the patent protection scope of the present invention.

Claims

1. An eccentric shaft adjustment device for the backlash of gear meshing in a rotating mechanism, characterized in that: including a turntable structure (1), an upper positioning ring (11) and a lower positioning ring (12) are pre-welded on the top and bottom of the turntable structure (1), and are integrally machined by a machining center to ensure the concentricity of the upper positioning ring (11) and the lower positioning ring (12); a speed reducer (2), the speed reducer (2) is installed into the turntable structure (1) vertically from top to bottom, its central axis is eccentrically arranged with the central axis of the turntable structure (1), and the speed reducer (2) is rotationally connected with a flange plate (3) through a connecting flange (21), the flange plate (3) is bolted to the upper positioning ring (11), the connecting flange (21), the flange plate (3) and the turntable structure (1) are concentrically arranged, and the speed reducer (2) can rotate circumferentially around the central axis of the flange plate (3) through the connecting flange (21); an eccentric shaft (6), the eccentric shaft (6) is installed at the output end of the speed reducer (2), and a driving gear (7) meshed with an external internal gear ring (9) is installed at the lower end of the eccentric shaft (6); an adjusting mechanism (4) and a locking mechanism (5), the adjusting mechanism (4) and the locking mechanism (5) are bolted to a position near one side of the top of the flange plate (3), and are used for accurately controlling the rotation angle and locking limit of the speed reducer (2) to realize the adjustment of the meshing backlash between the driving gear (7) and the internal gear ring (9); a positioning assembly (8), the positioning assembly (8) is bolted to the bottom of the turntable structure (1) and is used for stabilizing the lower end of the eccentric shaft (6).

2. The eccentric shaft adjusting device for the backlash of gear meshing of the rotation mechanism according to claim 1, characterized in that: A connecting flange (21) is bolted to a position near the top of the outer wall of the speed reducer (2), a pressure-bearing bearing is arranged between the connecting flange (21) and the flange plate (3), and the top and bottom of the pressure-bearing bearing are respectively interference-connected to the connecting flange (21) and the flange plate (3).

3. An eccentric shaft adjustment device for the backlash of gear meshing in a rotating mechanism according to claim 2, characterized in that: A plurality of scale marking strips (31) are evenly distributed in the circumferential direction near the inner wall of the top of the flange plate (3), and an identifier corresponding to the scale marking strip (31) is arranged on the outer wall of the connecting flange (21).

4. An eccentric shaft adjustment device for the backlash of gear meshing in a rotating mechanism according to claim 3, characterized in that: The adjusting mechanism (4) includes a U-shaped frame (41) bolted to the top of the flange plate (3), both sides of the U-shaped frame (41) are fixedly connected with threaded cylinders (42), the inner walls of the two threaded cylinders (42) are both threadedly connected with lead screws (43), the opposite end faces of the two lead screws (43) are both fixedly connected with rotating torsion blocks (44), and the opposite end faces of the two lead screws (43) abut against both sides of a pushing column (211) threadedly connected to the side wall of the connecting flange (21).

5. An eccentric shaft adjusting device for the backlash of gear meshing in a rotating mechanism according to claim 4, characterized in that: The two lead screws (43) respectively penetrate through the two threaded cylinders (42), and the opposite end faces of the two lead screws (43) are both tapered and simultaneously abut against the smooth planes opened on both sides of the pushing column (211).

6. An eccentric shaft adjusting device for the backlash of gear meshing of a rotating mechanism according to claim 5, characterized in that: The locking mechanism (5) includes a locking block (51) snap-fitted to the top of the flange plate (3), a fastening bolt (52) is arranged through the middle of the locking block (51), and one end of the fastening bolt (52) is threadedly connected to the inner wall of a locking hole (212) opened on the side wall of the connecting flange (21).

7. An eccentric shaft adjusting device for the backlash of gear meshing of a rotating mechanism according to claim 6, characterized in that: The locking block (51) is arranged in a sector shape, and a locking groove (511) matching the scale identification strip (31) is opened at the bottom. The locking block (51) is press-fitted and connected to a plurality of corresponding scale identification strips (31) through a plurality of locking grooves (511) opened at its bottom.

8. An eccentric shaft adjusting device for the backlash of gear meshing of a rotating mechanism according to claim 1, characterized in that: The upper end of the eccentric shaft (6) is connected to the output end of the reducer (2) through a coupling, and its lower end penetrates through the positioning assembly (8) and is rotatably connected thereto.

9. An eccentric shaft adjusting device for the backlash of gear meshing in a rotating mechanism according to claim 8, characterized in that: The positioning assembly (8) includes an end cover (81) riveted to the inner wall of the turntable structure (1). An activity hole (82) is opened at the center of the end cover (81). The eccentric shaft (6) penetrates through the activity hole (82) and can be adjusted movably inside the activity hole (82). A positioning cover (83) is bolted to the bottom of the end cover (81), and the positioning cover (83) is sleeved on the outer wall of the eccentric shaft (6) through a bearing with interference fit at its center.

10. A method for adjusting an eccentric shaft adjusting device for the backlash of gear meshing in a rotating mechanism according to any one of claims 1-9, characterized in that: It includes the following steps: S1. First, the upper positioning ring (11) and the lower positioning ring (12) are pre-welded to the top and bottom of the turntable structure (1), and the integration of the three is realized through a machining center to ensure the concentricity of the three. S2. The flange (3) is installed at the bottom of the external connection flange (21) of the reducer (2) through a bearing under pressure. Then, it is loaded into the inside of the turntable structure (1) from top to bottom, and the flange (3) is pre-rotated and adjusted on the upper positioning ring (11) so that the driving gear (7) and the internal gear ring (9) are pre-positioned and meshed, and the flange (3) is installed on the upper positioning ring (3) with bolts. S3. The end cover (81) on the positioning assembly (8) is pre-bolted to the bottom of the turntable structure (1), and the positioning cover (83) is temporarily separated to facilitate the later positioning and fixation of the adjusted eccentric shaft (6). S4. Drive a rotating torsion block (44) on the adjustment mechanism (4), which drives the corresponding lead screw (43) to move inside the corresponding threaded cylinder (42), so that the end face of the lead screw (43) is far away from the push column (211) to reserve an activity space for adjustment. S5. Then drive another rotating torsion block (44) to drive the corresponding lead screw (43) to move inside its corresponding threaded barrel (42), so that its end face abuts against the push column (211), and apply pressure to make the push column (211) drive the connecting flange (21) to rotate. At this time, the connecting flange (21) drives the eccentrically installed reducer (2) to rotate in a circle on the flange plate (3), and perform corresponding fine adjustment through the identifier on the connecting flange (21) and the scale marking strip (31) on the flange plate (3). Thus, the tooth surface of the driving gear (7) at the end face of the eccentric shaft (6) approaches the tooth surface of the internal gear ring (9) through the circumferentially rotating reducer (2) to achieve the adjustment of the meshing clearance (there is an eccentricity e between the axis of the eccentric shaft (6) and the central axis of the turntable structure (1). When the connecting flange (21) rotates by an angle θ, the center of the driving gear (7) at the lower end of the eccentric shaft (6) moves a distance s = 2e*sin(θ / 2) along the circumferential direction, thereby changing the meshing clearance between the driving gear (7) and the internal gear ring (9)); S6. Return to drive the rotating torsion block (44) in the reserved space, so that the lead screw (43) abuts against the adjusted push column (22), and press and lock the locking block (51) on the scale marking strip (31) through the locking groove (511). At the same time, use the fastening bolt (52) to fix it on the connecting flange (21) to realize the fixation of the adjusted reducer (2); S7. Finally, install the positioning cover (83) on the end cover (81) through bolts to ensure the stability of the rotation position of the lower end of the eccentric shaft (6), so that the driving gear (7) and the internal gear ring (9) maintain a stable side clearance during meshing operation.

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