A driving wheel with adjustable gear clearance

Abstract

The present invention relates to the technical field of gearboxes, and specifically discloses a driving wheel with adjustable gear clearance, including a gearbox and an adjustment structure; the adjustment structure is detachably arranged on the gearbox and is used to move the straight-tooth driving wheel. A first shaft structure or a second shaft structure is detachably installed on the adjustment structure. The first shaft structure cooperates with the adjustment structure to adjust the front-back movement of the bevel gear, and the second shaft structure cooperates with the adjustment structure to adjust the left-right movement of the straight-tooth gear. The present invention has the advantages of convenient operation, multi-directional adjustment, effective protection of gears, and comprehensive structural adaptation, can ensure that the bevel gear can maintain a good meshing state under different working conditions, meet the clearance adjustment requirements of gears in different positions and of different types, and can effectively protect the gears by adjusting the clearance of the driving wheel's movement.

Description

Technical Field

[0001] The present invention relates to the technical field of gearboxes, and specifically to a driving wheel with adjustable gear clearance. Background Art

[0002] When installing existing gearboxes, it is extremely inconvenient to dock the driving wheel and the driven wheel. Moreover, the driving wheel cannot be adjusted after assembly, resulting in poor fit between the driving wheel and the driven wheel, and differences and potential hazards in the clearance. An appropriate gear clearance can prevent rigid collisions between gears during transmission. If the clearance is too small, the gears are prone to jamming during operation, and the friction force between the tooth surfaces will increase sharply, resulting in unsmooth transmission, strong vibration, and noise. If the clearance is too large, obvious impacts will occur during the meshing of the gears, and vibration and noise will also be generated, affecting the normal operation of the equipment. For example, in the gear transmission system of an automobile gearbox, an appropriate clearance can enable smooth power output, make the gear shifting smooth during vehicle driving, and reduce the sense of jerk. A reasonable clearance can make the tooth surfaces of the gears contact evenly during meshing, avoid excessive local stress on the tooth surfaces due to unreasonable clearance, make the tooth surface wear more evenly, and reduce the transmission friction temperature. Summary of the Invention

[0003] Aiming at the defects of the existing technology, the present invention provides a driving wheel with adjustable gear clearance. This device solves the problem that the driving wheel cannot adjust the tooth gap of the driven wheel, realizes adjustable clearance, reduces gear friction and wear, improves the service life of the gears, and improves the transmission capacity.

[0004] To achieve the above object, the present invention provides the following technical solution: A driving wheel with adjustable gear clearance, including a gearbox and an adjustment structure; the adjustment structure is detachably arranged on the gearbox and is used to move the straight-tooth driving wheel. The first shaft structure or the second shaft structure is detachably installed on the adjustment structure. The first shaft structure cooperates with the adjustment structure to adjust the forward and backward movement of the bevel gear, and the second shaft structure cooperates with the adjustment structure to adjust the left and right movement of the straight-tooth gear.

[0005] Preferably, the adjusting structure includes a pair of adjusting boxes, an adjusting shaft, an adjusting gear, an adjusting rack, and a first adapter seat; the pair of adjusting boxes are detachably buckled relative to each other, and first moving openings are symmetrically formed in the middle of the front side walls of the adjusting boxes. A sliding plate is symmetrically arranged in each of the pair of adjusting boxes and is located on the front side of the center line. One end of the adjusting shaft movably penetrates through the middle of the upper wall of one of the adjusting boxes, and the other end of the adjusting shaft is movably inserted into the lower wall of the other adjusting box. The adjusting shaft cannot be separated from one of the adjusting boxes, and the upper wall of the other end of the adjusting shaft is an internal hexagonal structure. The adjusting gear is fixedly sleeved on the adjusting shaft and is located between the adjusting boxes. The upper and lower side walls of the adjusting rack are provided with sliding grooves. The adjusting rack is movably clamped between the sliding plates through the sliding grooves and is located in front of the adjusting gear. The adjusting rack meshes with the adjusting gear. One end of the first adapter seat is detachably arranged in the middle of the front side wall of the adjusting rack, and the other end of the first adapter seat is movably embedded in the first moving opening.

[0006] Preferably, the first shaft structure includes a first driving shaft, a pair of fixing bolts, a second adapter seat, a first shaft ring, and a second shaft ring; an installation opening adapted to the adjusting box is formed in the right side wall of the first driving shaft. Second moving openings penetrating through the front and rear side walls of the first driving shaft are formed in the middle of the front and rear side walls of the installation opening. One end of the first driving shaft is fixedly arranged on the gear box, and the first driving shaft rotates through the gear box. A force application hole communicating with the middle of the installation opening is formed in the upper wall of one end of the first driving shaft. The pair of fixing bolts respectively movably penetrate through one end of the first driving shaft and are symmetrically arranged on both sides of the force application hole. One end of the second adapter seat movably penetrates through the second moving opening in the front side wall of the first driving shaft, and one end of the second adapter seat is detachably connected to the other end of the first adapter seat. The first shaft ring is a semi-circular structure. One end of the first shaft ring is detachably arranged on the other end of the second adapter seat. A clamping block is arranged on the inner side wall of the other end of the first shaft ring, and the clamping block is movably inserted into the second moving opening in the rear side wall of the first driving shaft. Both ends of the second shaft ring are detachably connected to both ends of the first shaft ring. After the second shaft ring is docked with the first shaft ring, it is movably sleeved on one end of the first driving shaft.

[0007] Preferably, the second shaft structure includes a transfer arm, a bearing seat, and a second driving shaft; one end of the transfer arm is detachably arranged on the other end of the first adapter seat, and the transfer arm is located in front of the adjusting box. A shaft hole is formed in the middle of the other end of the transfer arm. One end of the bearing seat is fixedly arranged on the other end of the transfer arm. Driving bearings are symmetrically embedded in the middle of both ends of the bearing seat. The second driving shaft movably penetrates through the bearing seat, and the second bearing fixedly penetrates through the middle of the driving bearing.

[0008] Preferably, the first shaft ring and the second shaft ring outside the first driving shaft are used for sleeving a bevel gear.

[0009] Preferably, a spur gear is sleeved on the second drive shaft.

[0010] Preferably, when the second shaft structure is assembled with the adjusting structure, a docking groove is formed on the side wall of the gearbox, and one end of the shaft seat movably penetrates through the docking groove on the side wall of the gearbox.

[0011] Preferably, the first shaft structure is used for bevel gears that are relatively vertically interlocked.

[0012] Compared with the prior art, the present invention has the following beneficial effects: By using a hex wrench to drive the adjusting structure, the first shaft structure or the second shaft structure is driven by the adjusting structure to move, so as to adjust the gear clearance; The cooperation between the first shaft structure and the adjusting structure is used to realize the relative clearance adjustment of the bevel gears for relatively vertically docked input and output, that is, the front and back movement of the gears is realized through the cooperation between the first shaft structure and the adjusting structure; The combination of the adjusting structure and the second shaft structure is used to drive the driving wheel to move and adjust left and right; The two can also be used in combination according to needs, that is, on the same gearbox, the second shaft structure and the first shaft structure are respectively arranged for the driving wheel at the input end and the driven wheel at the output end, and the clearance of the driving wheel is adjusted, which can effectively protect the gears.

[0013] In summary, the beneficial effects of the present invention are as follows:

[0014] 1. The adjusting structure is driven by a hex wrench. A hex wrench is a common and easy-to-operate tool; This means that when adjusting the gear clearance, there is no need for specially customized or complex tools. Maintenance personnel or operators can easily obtain and use it, reducing the operation difficulty and dependence on professional tools, and improving the efficiency of the adjustment work.

[0015] 2. Multi-directional adjustment ability:

[0016] 2.1. Front and back movement adjustment: The relative clearance adjustment of the bevel gears for relatively vertically docked input and output is realized through the cooperation between the first shaft structure and the adjusting structure, which can accurately adjust the gear clearance in the front and back directions; This adjustment method is suitable for some scenarios with specific requirements for the transmission angle and clearance. For example, in some mechanical devices that need to change the power transmission direction, it can ensure that the bevel gears can maintain a good meshing state under different working conditions.

[0017] 2.2. Left and right movement adjustment: The combination of the adjusting structure and the second shaft structure is used to drive the driving wheel to move and adjust left and right, providing another dimension of adjustment method for adjusting the gear clearance; This left and right movement adjustment can adapt to different mechanical layouts and working requirements, such as playing a role in some systems that need to change the position of the driving wheel to optimize the transmission effect.

[0018] 2.3. Advantages of combined adjustment: The two can also be used in combination according to needs, that is, on the same gearbox, a second axis structure and a first axis structure are respectively set for the driving wheel at the input end and the driven wheel at the output end to adjust the clearance of the driving wheel; this combination method greatly improves the flexibility of adjustment, can cope with more complex and diverse gear transmission systems, meet the clearance adjustment needs of gears in different positions and types, and enable the entire gearbox system to better adapt to various working conditions and changes in working conditions.

[0019] 3. Effective protection of gears: The movable adjustment clearance of the driving wheel can effectively protect the gears; appropriate gear clearance can avoid excessive wear, impact, vibration and other problems caused by improper clearance during the transmission process, reduce the probability of tooth surface fatigue, pitting and other faults, thereby extending the service life of the gears, reducing the maintenance cost and downtime of the equipment, and improving the reliability and stability of the entire equipment.

[0020] 4. Adapt to a variety of gearbox layouts: It can be flexibly applied to gearboxes with different structures and layouts; whether it is a simple single-stage gear transmission or a complex multi-stage gear transmission system, it can achieve effective adjustment of gear clearances of different positions and types by reasonably setting the first axis structure, the second axis structure and the adjustment structure. It has strong versatility and adaptability and can meet the needs of a variety of industrial equipment and mechanical systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram showing the structure of the first use of the present invention;

[0022] Figure 2 This is a schematic diagram showing the structure of the second use of the present invention;

[0023] Figure 3 A schematic diagram of the enlarged structure for adjusting the structural split;

[0024] Figure 4 Schematic diagram of the structure assembly for regulating the structure;

[0025] Figure 5 This is a schematic diagram of the split structure of the first axis structure;

[0026] Figure 6 for Figure 5 Schematic diagram of the assembly structure;

[0027] Figure 7 A schematic diagram showing the structure for assembling the adjustment structure and the first axis structure;

[0028] Figure 8 for Figure 7 A schematic diagram of the local enlarged structure at B in FIG.

[0029] Figure 9This is a schematic diagram of the split structure of the second axis structure;

[0030] Figure 10 It is a schematic diagram of the assembly structure of the second axis structure and the adjustment structure.

[0031] In the figure: 1. gear box, 2. adjustment structure, 21. adjustment box, 22. adjustment shaft, 23. adjustment gear, 24. adjustment rack, 25. first adapter seat, 3. first shaft structure, 31. first drive shaft, 32. fixing bolt, 33. second adapter seat, 34. first shaft ring, 35. second shaft ring, 4. second shaft structure, 41. adapter arm, 42. bearing seat, 43. second drive shaft, 44. drive bearing, 5. first moving port, 6. installation port, 7. second moving port, 8. shaft hole, 9. force hole. DETAILED DESCRIPTION

[0032] The following will be combined with the attached embodiment of the present invention Figures 1 - 10 To provide further details:

[0033] The present invention provides a technical solution: Figure 1 and Figure 2 As shown, a driving wheel with adjustable gear clearance includes a gear box 1 and an adjusting structure 2; the adjusting structure 2 is detachably mounted on the gear box 1 and is used to move the spur gear driving wheel, and a first shaft structure 3 or a second shaft structure 4 is detachably mounted on the adjusting structure 2, the first shaft structure 3 cooperates with the adjusting structure 2 to adjust the forward and backward movement of the bevel gear, and the second shaft structure 4 cooperates with the adjusting structure 2 to adjust the left and right movement of the spur gear.

[0034] More specifically, Figure 3 and Figure 4As shown, the adjustment structure 2 includes a pair of adjustment boxes 21, an adjustment shaft 22, an adjustment gear 23, an adjustment rack 24, and a first adapter seat 25; the pair of adjustment boxes 21 are detachably buckled relative to each other, and symmetrically provided with first moving openings 5 in the middle of the front side walls of the adjustment boxes 21. A pair of sliding plates 10 are symmetrically arranged in each of the pair of adjustment boxes 21 and located on the front side of the center line. One end of the adjustment shaft 22 movably penetrates through the middle of the upper wall of one of the adjustment boxes 21, and the other end of the adjustment shaft 22 is movably inserted into the lower wall of the other adjustment box 21. The adjustment shaft 22 cannot be separated from one of the adjustment boxes 21, and the upper wall of the other end of the adjustment shaft 22 is an internal hexagonal structure. The adjustment gear 23 is fixedly sleeved on the adjustment shaft 22 and is located between the adjustment boxes 21. Both the upper and lower side walls of the adjustment rack 24 are provided with sliding grooves. The adjustment rack 24 is movably clamped between the sliding plates 10 through the sliding grooves and is located in front of the adjustment gear 23. The adjustment rack 24 meshes with the adjustment gear 23. One end of the first adapter seat 25 is detachably arranged in the middle of the front side wall of the adjustment rack 24, and the other end of the first adapter seat 25 is movably embedded in the first moving opening 5. By driving the adjustment gear 23 to rotate in the adjustment box 21 through the adjustment shaft 22, and through the meshing of the adjustment gear 23 and the adjustment rack 24, the adjustment rack 24 is driven to move on the sliding plate 10, thereby driving the first adapter seat 25 to move in the first moving opening 5.

[0035] More specifically, as Figure 5 , Figure 6 , Figure 7 and Figure 8As shown in the figure, the first shaft structure 3 includes a first drive shaft 31, a pair of fixing bolts 32, a second adapter seat 33, a first shaft collar 34, and a second shaft collar 35; an installation opening 6 that fits with the adjustment box 21 is provided on the right side wall of the first drive shaft 31. Second moving openings 7 penetrating through the front and rear side walls of the first drive shaft 31 are provided in the middle of the front and rear side walls of the installation opening 6. One end of the first drive shaft 31 is fixedly arranged on the gearbox 1, and the first drive shaft 31 rotates through the gearbox 1. A force application hole 9 communicating with the middle of the installation opening 6 is provided on the upper wall of one end of the first drive shaft 31. A pair of fixing bolts 32 respectively pass through one end of the first drive shaft 31 movably and are symmetrically located on both sides of the force application hole 9. One end of the second adapter seat 33 movably passes through the second moving opening 7 on the front side wall of the first drive shaft 31, and one end of the second adapter seat 33 is detachably connected to the other end of the first adapter seat 25. The first shaft collar 34 is of a semi-circular structure. One end of the first shaft collar 34 is detachably arranged on the other end of the second adapter seat 33. A clamping block 11 is provided on the inner side wall of the other end of the first shaft collar 34, and the clamping block 11 is movably inserted into the second moving opening 7 on the rear side wall of the first drive shaft 31. The second shaft collar 35 has the same diameter as the first shaft collar 34. Both ends of the second shaft collar 35 are detachably connected to both ends of the first shaft collar 34. After the second shaft collar 35 is docked with the first shaft collar 34, it is movably sleeved on one end of the first drive shaft 31; the adjustment box 21 is sleeved through the first drive shaft 31, the first shaft collar 34 is installed by docking the second adapter seat 33 with the first adapter seat 25, the first shaft collar 34 is limited on the second moving buckle through the clamping block 11, and the second shaft collar 35 is installed through the first shaft collar 34 and is movably sleeved on the first drive shaft 31.

[0036] More specifically, as Figure 9 and Figure 10 shown in the figure, the second shaft structure 4 includes a transfer arm 41, a bearing seat 42, and a second drive shaft 43; one end of the transfer arm 41 is detachably arranged on the other end of the first adapter seat 25, and the transfer arm 41 is located on the front side of the adjustment box 21. A shaft hole 8 is provided in the middle of the other end of the transfer arm 41. One end of the bearing seat 42 is fixedly arranged on the other end of the transfer arm 41. Drive bearings 44 are symmetrically embedded in the middle of both ends of the bearing seat 42. The second drive shaft 43 movably passes through the bearing seat 42, and the second bearing fixedly passes through the middle of the drive bearing 44; the transfer arm 41 is docked with the first adapter seat 25 to carry and drive the bearing seat 42 to move on the gearbox 1, and the second drive shaft 43 is carried by the drive bearings 44 on the bearing seat 42.

[0037] As a preferred solution, further, the first shaft collar 34 and the second shaft collar 35 outside the first drive shaft 31 are used to sleeve bevel gears for realizing the adjustment of the front and rear movement according to the design requirements.

[0038] As a preferred solution, further, a spur gear is sleeved on the second drive shaft 43 for adjusting the left and right docking clearance of the spur gear.

[0039] As a preferred solution, furthermore, when the second shaft structure 4 is assembled with the adjustment structure 2, a docking groove is formed in the side wall of the gearbox 1, and one end of the shaft seat movably penetrates through the docking groove in the side wall of the gearbox 1 to drive the movement for the design requirements.

[0040] As a preferred solution, furthermore, the first shaft structure 3 is used for bevel gears for relative vertical linkage.

[0041] Principle of operation one, as Figure 1 shown: When the adjustment structure 2 and the first shaft structure 3 are assembled and used on the gearbox 1, it can be used for the transmission of relatively vertical input and output ends, that is, bevel gears are provided at both the input end and the output end;

[0042] Step 1. During use, the adjustment box 21 is inserted into the installation port 6 of the first drive shaft 31 after being relatively buckled, and then the adjustment box 21 is fixed by the fixing bolt 32; at this time, the top of the adjustment shaft 22 corresponds to the force application hole 9, and the first adapter seat 25 located in the first moving port 5 corresponds to the second moving port 7;

[0043] Step 2. One end of the first drive shaft 31 installed with the adjustment structure 2 penetrates through the side wall of the gearbox 1 and is located inside the gearbox 1, then the second adapter seat 33 can be docked with the first adapter seat 25, and then the corresponding first shaft ring 34 is connected and limitedly installed by inserting the block 11 into the second moving port 7. Finally, the second shaft ring 35 is docked and fixed with the first shaft ring 34 to realize the docking of the first shaft ring 34 and the second shaft ring 35 into a circular shape and movably sleeved on the first drive shaft 31;

[0044] Step 3. Finally, the corresponding bevel gears are sleeved and fixed on the first shaft ring 34 and the second shaft ring 35. During use, the bevel gears drive the first drive shaft 31 to rotate on the gearbox 1 through the block 11 and the second adapter seat 33;

[0045] Step 4. When the gap needs to be adjusted, a hex wrench can be passed through the force application hole 9 and inserted into the top of the adjustment shaft 22 for rotation. The rotation of the adjustment shaft 22 will drive the adjustment gear 23 to rotate. The adjustment gear 23 meshes with the adjustment rack 24 to drive the adjustment rack 24 to move under the limitation of the slide plate 10. Finally, the adjustment rack 24 drives the first adapter seat 25, the second adapter seat 33, the first shaft ring 34 and the second shaft ring 35 to move, so as to drive the corresponding bevel gears to move back and forth for adjustment.

[0046] Principle of operation two, as Figure 2 shown: When the adjustment structure 2 and the second shaft structure 4 are assembled and used, it can be used for adjusting the gap of spur gears to move left and right;

[0047] S1. During use, fix the adjustment structure 2 on the gearbox 1. A docking groove needs to be opened on the side wall of the gearbox 1, and then fix the adjustment structure 2 corresponding to the left side of the docking groove. Then connect one end of the transfer arm 41 to the first transfer seat 25, align the bearing seat 42 at the other end of the transfer arm 41 with the docking groove, and pass or insert the bearing seat 42 through the docking groove on the side wall of the gearbox 1 so that one end of the second drive shaft 43 is located inside the gearbox 1 and can move left and right.

[0048] S2. After installation, sleeve a drive wheel (spur gear or bevel gear) on one end of the second drive shaft 43 located inside the gearbox 1. Then, the adjustment shaft 22 can be driven by a hex wrench. The rotation of the adjustment shaft 22 will drive the adjustment gear 23 to rotate inside the adjustment box 21. The engagement between the adjustment gear 23 and the adjustment rack 24 drives the adjustment rack 24 to move left and right under the limitation of the slide plate 10, thereby driving the second shaft structure 4 to move left and right, realizing the adjustment of the clearance by moving the drive wheel. During use, the second drive shaft 43 rotates through the drive bearing 44.

[0049] Similarly, the adjustment structure 2 and the first shaft structure 3 can be respectively arranged on the same gearbox 1 for combined use, and the adjustment structure 2 and the second shaft structure 4 can be combined for use to respectively realize the front and rear movement of the corresponding gear to adjust the clearance and the left and right movement to adjust the clearance. One of the combinations can be set according to requirements for the input end of the drive wheel.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Any other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.

Claims

1. A driving wheel with adjustable gear clearance, characterized in that: The invention comprises a gear box (1) and an adjustment structure (2); the adjustment structure (2) is detachably mounted on the gear box (1) and is used to move a driving wheel; a first shaft structure (3) or a second shaft structure (4) is detachably mounted on the adjustment structure (2); the first shaft structure (3) cooperates with the adjustment structure (2) to adjust the forward and backward movement of a bevel gear; and the second shaft structure (4) cooperates with the adjustment structure (2) to adjust the left and right movement of a spur gear; The adjustment structure (2) comprises a pair of adjustment boxes (21), an adjustment shaft (22), an adjustment gear (23), an adjustment rack (24) and a first adapter seat (25); The pair of adjustment boxes (21) are detachably buckled relative to each other, and the middle of the front side wall of the adjustment box (21) is symmetrically provided with a first moving opening (5), the inside of the pair of adjustment boxes (21) is symmetrically arranged on the slide plate (10) and is located in front of the center line, one end of the adjustment shaft (22) movably passes through the middle of the upper wall of one of the adjustment boxes (21), and the other end of the adjustment shaft (22) is movably inserted into the lower wall of the other adjustment box (21), the adjustment shaft (22) cannot be separated from one of the adjustment boxes (21), and the upper wall of the other end of the adjustment shaft (22) is a hexagonal structure, and the adjustment gear ( 23) is fixedly sleeved on the adjustment shaft (22), and the adjustment gear (23) is located between the adjustment boxes (21), the upper and lower side walls of the adjustment rack (24) are provided with sliding grooves, the adjustment rack (24) is movably clamped between the slide plates (10) through the sliding grooves, and the adjustment rack (24) is located in front of the adjustment gear (23), the adjustment rack (24) and the adjustment gear (23) are engaged, one end of the first adapter seat (25) is detachably arranged in the middle of the front side wall of the adjustment rack (24), and the other end of the first adapter seat (25) is movably embedded in the first moving opening (5).

2. A driving wheel with adjustable gear clearance according to claim 1, characterized in that: The first shaft structure (3) comprises a first drive shaft (31), a pair of fixing bolts (32), a second adapter seat (33), a first shaft ring (34) and a second shaft ring (35); The right side wall of the first drive shaft (31) is provided with an installation opening (6) matched with the adjustment box (21); the middle part of the front and rear side walls of the installation opening (6) are provided with a second movable opening (7) penetrating the front and rear side walls of the first drive shaft (31); one end of the first drive shaft (31) is fixedly arranged on the gear box (1), and the first drive shaft (31) rotates through the gear box (1); the upper wall of one end of the first drive shaft (31) is provided with a force application hole (9) connected with the middle part of the installation opening (6); a pair of fixing bolts (32) are respectively movably penetrated through one end of the first drive shaft (31) and are respectively located symmetrically on both sides of the force application hole (9); one end of the second adapter seat (33) is movably penetrated through the first drive shaft (31) and the first drive shaft (31) is rotated through the gear box (1); A second moving opening (7) on the front side wall of the driving shaft (31) is provided, and one end of the second adapter seat (33) is detachably connected to the other end of the first adapter seat (25); the first shaft ring (34) is a semicircular structure; one end of the first shaft ring (34) is detachably arranged on the other end of the second adapter seat (33); a clamping block (11) is provided on the inner side wall of the other end of the first shaft ring (34); and the clamping block (11) is movably inserted into the second moving opening (7) on the rear side wall of the first driving shaft (31); two ends of the second shaft ring (35) are detachably connected to two ends of the first shaft ring (34); and the second shaft ring (35) is movably sleeved on one end of the first driving shaft (31) after being docked with the first shaft ring (34).

3. The drive wheel with adjustable gear clearance according to claim 1, characterized in that: The second shaft structure (4) comprises a transfer arm (41), a bearing seat (42) and a second drive shaft (43); One end of the transfer arm (41) is detachably mounted on the other end of the first transfer seat (25), and the transfer arm (41) is located at the front side of the adjustment box (21). An axial hole (8) is provided in the middle of the other end of the transfer arm (41). One end of the bearing seat (42) is fixedly mounted on the other end of the transfer arm (41). Drive bearings (44) are symmetrically embedded in the middle of both ends of the bearing seat (42). The second drive shaft (43) movably passes through the bearing seat (42), and the second bearing is fixedly mounted through the middle of the drive bearing (44).

4. The drive wheel with adjustable gear clearance according to claim 2, characterized in that: The first shaft ring (34) and the second shaft ring (35) on the outside of the first drive shaft (31) are used to fit the bevel gear.

5. The driving wheel with adjustable gear clearance according to claim 3, characterized in that: A spur gear is mounted on the second drive shaft (43).

6. The driving wheel with adjustable gear clearance according to claim 5, characterized in that: When the second shaft structure (4) is assembled with the adjustment structure (2), a docking groove is provided on the side wall of the gear box (1), and one end of the shaft seat movably passes through the docking groove on the side wall of the gear box (1).

7. The driving wheel with adjustable gear clearance according to claim 4, characterized in that: The first shaft structure (3) is used for relatively vertically linked bevel gears.

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