All kinds of gear drive tooth side clearance elimination methods, for reference and understanding

Various methods of eliminating the side clearance of gear transmissions, for reference and understanding, unclear places or relatedGear processingIf you need, you can consult EP Technology for free.

The flexible anti-backlash method and the rigid anti-backlash method are methods to eliminate the side clearance of gear transmission. They have been well applied in the following anti-backlash mechanisms respectively.

XNUMX. Flexible anti-backlash method:

1. Disc spring anti-backlash mechanism:

薄片斜齿轮1和2同时与宽齿轮6啮合，螺母5通过垫片4调节碟形弹簧3的压力，从而消除侧隙。

2. Double-gear staggered-tooth anti-backlash mechanism:

Under the tension of the spring, the left and right tooth surfaces of the two thin gears are in contact with the left and right tooth surfaces of the wide gear respectively, thereby eliminating backlash.

3. Pressure spring anti-backlash mechanism:

The two ends of the spring 6 are respectively pressed against the protruding pawl 4 and the insert 7 so that the inner and outer ring gears are tangentially misaligned to eliminate backlash.

XNUMX. Rigid anti-backlash method:

1. Helical gear anti-backlash mechanism:

宽齿轮4同时与两相同齿数的窄斜齿轮1和2啮合。斜齿轮1和2的齿形和键槽均拼装起来同时加工，加工时在两窄斜齿轮间装入厚度为t的垫片3。

When assembling, by changing the thickness of the washer 3, the spiral surfaces of the two gears are misaligned, and the left and right tooth surfaces of the two gears are in contact with the tooth surfaces of the wide gear respectively to eliminate the tooth side clearance.

2. Eccentric shaft sleeve type anti-backlash mechanism:

The electric motor 1 is mounted on the box body through an eccentric shaft sleeve 2.Rotate the eccentric shaft sleeve to adjust the center distance of the two gears and eliminate the tooth side clearance.

3. Taper due to wheel anti-backlash mechanism:

Change the indexing cylinders of gears 1 and 2 to tapered conical surfaces to change the tooth thickness of the gears in the axial direction.When assembling, by changing the thickness of the washer 3, the relative position of the two gears in the axial direction is changed to eliminate the backlash.

For more instructions on how to eliminate the side clearance of gear transmission, please click EP Precision gear machining Free consultation at the consultation window on the right.