CN-121994111-A - Zero test device for large conical hole aligning roller bearing and taper sleeve

CN121994111ACN 121994111 ACN121994111 ACN 121994111ACN-121994111-A

Abstract

The invention discloses a zero position test device for a large conical hole aligning roller bearing and a taper sleeve, which comprises a support base, a dumbbell-shaped dummy shaft, a first pressing plate, a first bolt, a second bolt, a third bolt, a second pressing plate, a fourth bolt, a fifth bolt, a third pressing plate, a sixth bolt, a seventh bolt, a fourth pressing plate, an eighth bolt and a lock nut, wherein the support base is centrally arranged on the dumbbell-shaped dummy shaft, the first pressing plate, the bolt group, the second pressing plate and the bolt group are configured to perform zero position adjustment on the first bearing, and the third pressing plate, the bolt group, the fourth pressing plate, the bolt group and the lock nut form zero position adjustment on the second bearing. The device overcomes the defect of the zero position confirmation operation of the traditional bearing, designs a special control mode aiming at different taper sleeve types, realizes accurate limiting and center calibration through the combination of the pressing plate and the bolt group, ensures zero position state presetting and clearance accurate control, and effectively improves the efficiency of zero position confirmation operation.

Inventors

ZHANG XIE
JIANG ZHE

Assignees

宝武装备智能科技有限公司

Dates

Publication Date: 20260508
Application Date: 20251218

Claims (2)

1. The zero test device for the large conical hole aligning roller bearing and the taper sleeve is characterized by comprising a supporting base, a dumbbell-shaped dummy shaft, a first pressing plate, a first bolt, a second bolt, a third bolt, a second pressing plate, a fourth bolt, a fifth bolt, a third pressing plate, a sixth bolt, a seventh bolt, a fourth pressing plate, an eighth bolt and a locking nut; The left end face and the right end face of the dumbbell-shaped dummy shaft are respectively provided with steps, the inner side face of the right shaft end is provided with a shaft shoulder, and the support base is centrally arranged on the bottom face of the dumbbell-shaped dummy shaft; The first pressing plate is arranged on a step of the left end face of the dumbbell-shaped dummy shaft, the first bolt, the second bolt and the third bolt are sequentially arranged on the first pressing plate from bottom to top along the radial direction, the first bolt is screwed on the step of the left end face of the dumbbell-shaped dummy shaft, the second bolt is abutted to the left end face of a withdrawal sleeve arranged at the left end face of the dumbbell-shaped dummy shaft, and the third bolt is abutted to the left end face of a first bearing arranged at the left end face of the dumbbell-shaped dummy shaft; The second pressing plate is arranged on the inner end face of the left shaft end of the dumbbell-shaped dummy shaft, the fourth bolt and the fifth bolt are sequentially arranged on the second pressing plate from bottom to top along the radial direction, the fourth bolt is screwed on the inner end face of the left shaft end of the dumbbell-shaped dummy shaft, and the fifth bolt is abutted to the right end face of the withdrawal sleeve arranged on the left shaft end of the dumbbell-shaped dummy shaft; The third pressing plate is arranged on the inner end surface of the right shaft end of the dumbbell-shaped dummy shaft, the sixth bolt and the seventh bolt are sequentially arranged on the third pressing plate from bottom to top along the radial direction, the sixth bolt is screwed on the inner end surface of the right shaft end of the dumbbell-shaped dummy shaft, and the seventh bolt is abutted to the left end surface of the second bearing arranged on the right shaft end of the dumbbell-shaped dummy shaft; The fourth pressing plate is arranged on the step of the right end face of the dumbbell-shaped dummy shaft, the eighth bolt is arranged on the fourth pressing plate and screwed on the step of the right end face of the dumbbell-shaped dummy shaft, and the locking nut is screwed on the external thread of the tightening sleeve positioned on the outer ring of the right end of the dumbbell-shaped dummy shaft.
2. The zero test device for the large conical hole aligning roller bearing and the taper sleeve according to claim 1, wherein the first pressing plate, the second pressing plate, the third pressing plate and the fourth pressing plate are respectively annular pressing plates.

Description

Zero test device for large conical hole aligning roller bearing and taper sleeve Technical Field The invention relates to the technical field of mechanical equipment debugging, in particular to a zero test device for a large-sized conical hole aligning roller bearing and a conical sleeve. Background The conical hole aligning roller bearing generally needs to control the expansion of the inner ring of the bearing through the axial displacement of the taper sleeve (the fastening sleeve or the dismounting sleeve) so that the radial internal clearance reaches a design value, and the zero position is a key state that the taper sleeve is completely attached to the inner hole of the bearing to provide a reference for subsequent clearance adjustment. When the conical hole aligning roller bearing is installed on the shaft through the taper sleeve, the zero position is a state that the inner ring of the conical hole aligning roller bearing is just attached to the taper sleeve and no interference or gap occurs. This state is usually confirmed by controlling the reduction of the radial play or the axial thrust distance, and it is ensured that the bearing is neither excessively tight to generate heat nor excessively loose to cause slip or vibration. For large conical hole aligning roller bearings with the inner diameter more than or equal to 300mm (widely applied to equipment such as sintering machine mixers, large gear boxes and the like), zero position confirmation before existing installation is achieved mainly through a clearance measurement control method, namely after a taper sleeve is initially sleeved into an inner hole of a bearing, the taper sleeve is manually pushed through a locking nut, in the process, constructors repeatedly measure radial clearance by using a feeler gauge or a dial indicator until the bearing clearance reaches a designed range value, and zero position judgment is achieved indirectly. The above-mentioned play measurement control method mainly has the following drawbacks: the manual operation precision is low, the weight of the large conical hole aligning roller bearing can generally reach 200-300 kg, when a constructor pushes the taper sleeve, the axial displacement error of the bearing is large due to uneven force application, the axial displacement of the bearing is difficult to accurately control, the bearing needs to be measured for multiple times to obtain an average value, and the precision requirement of the large bearing on zero position cannot be met. The installation efficiency and repeatability are poor, 2-3 persons are generally required to cooperatively operate when the zero test is carried out, the time consumption is long for single zero confirmation, the link flows of adjustment, measurement and the like are complicated, and the influence of experience of operators is large. Disclosure of Invention The invention aims to solve the technical problem of providing a zero test device for a large-sized conical hole aligning roller bearing and a conical sleeve, which overcomes the defect of the conventional bearing zero confirmation operation, designs a special control mode aiming at different conical sleeve types, realizes accurate limiting and center calibration through the combination of a pressing plate and a bolt set, ensures zero state presetting and clearance accurate control, and effectively improves the efficiency of zero confirmation operation. In order to solve the technical problems, the zero test device for the large conical hole aligning roller bearing and the taper sleeve comprises a supporting base, a dumbbell-shaped dummy shaft, a first pressing plate, a first bolt, a second bolt, a third bolt, a second pressing plate, a fourth bolt, a fifth bolt, a third pressing plate, a sixth bolt, a seventh bolt, a fourth pressing plate, an eighth bolt and a locking nut; The left end face and the right end face of the dumbbell-shaped dummy shaft are respectively provided with steps, the inner side face of the right shaft end is provided with a shaft shoulder, and the support base is centrally arranged on the bottom face of the dumbbell-shaped dummy shaft; The first pressing plate is arranged on a step of the left end face of the dumbbell-shaped dummy shaft, the first bolt, the second bolt and the third bolt are sequentially arranged on the first pressing plate from bottom to top along the radial direction, the first bolt is screwed on the step of the left end face of the dumbbell-shaped dummy shaft, the second bolt is abutted to the left end face of a withdrawal sleeve arranged at the left end face of the dumbbell-shaped dummy shaft, and the third bolt is abutted to the left end face of a first bearing arranged at the left end face of the dumbbell-shaped dummy shaft; The second pressing plate is arranged on the inner end face of the left shaft end of the dumbbell-shaped dummy shaft, the fourth bolt and the fifth bolt are sequentially arranged on the second pressing plate from