CN114043215A

CN114043215A - Bearing eccentric adjusting mechanism based on in shaft transmission

Info

Publication number: CN114043215A
Application number: CN202111312335.3A
Authority: CN
Inventors: 余涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-08
Filing date: 2021-11-08
Publication date: 2022-02-15

Abstract

The invention relates to the technical field of bearing eccentric adjustment, and discloses a bearing eccentric adjustment mechanism based on shaft transmission, which comprises a transmission shaft, wherein a support roller is fixedly sleeved in the middle of the outer surface of the transmission shaft, a fixed shell is movably sleeved on the outer surface of the support roller, a fixed connecting rod is movably sleeved in the fixed shell, a movable shaft sleeve is fixedly sleeved in the middle of the outer surface of the fixed connecting rod, an adjusting roller is movably sleeved on the outer surface of the movable shaft sleeve, and the outer surface of the adjusting roller is in contact with the inner wall of the fixed shell. This eccentric guiding mechanism of bearing based on in axle transmission to the setting of support roller, fixed connecting rod and regulation roller to the radial skew that will support the roller changes the side-to-side movement of regulation roller and fixed connecting rod, can effectively keep the axiality at this transmission shaft both ends, has avoided leading to its problem that it is great at the rotatory in-process circle of high speed because of the processing or assembly error at its both ends.

Description

Bearing eccentric adjusting mechanism based on in shaft transmission

Technical Field

The invention relates to the technical field of bearing eccentricity adjustment, in particular to a bearing eccentricity adjusting mechanism based on shaft transmission.

Background

The bearing is used as an important part for supporting the rotation of a mechanical rotating body and reducing the friction coefficient of the mechanical rotating body in the rotating motion process, particularly in some shaft transmission mechanical structures, the bearing has extremely high requirements on the installation precision, the bearings are mostly designed to be arranged in pairs so as to ensure good rotation precision, the abrasion of the parts on the bearing in the high-speed rotating operation process is effectively reduced, the processing difficulty of the bearings on the mechanical parts at two ends of a transmission shaft is greatly increased, certain deviation exists between the coaxiality of two ends of the transmission shaft in some assembled mechanical parts inevitably, the circular runout of the transmission shaft in the high-speed rotating process is further caused to be larger, the abrasion of the parts on the transmission shaft is also increased, and in addition, the noise pollution and the vibration phenomenon to a larger degree can also be generated in the transmission process, the stability is poor and the service life is short.

Therefore, a bearing eccentric adjusting mechanism based on shaft transmission is needed to solve the precision problem of the existing bearing in the assembling process.

Disclosure of Invention

Technical problem to be solved

The invention provides a bearing eccentric adjusting mechanism based on shaft transmission, which can flexibly adjust the assembly precision of two ends of a transmission shaft on mechanical parts, can be suitable for the mechanical parts with poor machining or assembly precision for the installation of the transmission shaft, ensures that the transmission shaft has higher coaxiality, does not generate a larger degree of circular run-out phenomenon in the high-speed rotating process, has the advantages of smaller abrasion to the parts and the bearing on the transmission shaft, higher stability and longer service life, solves the problems that the existing bearings inevitably cause certain deviation between the coaxiality of the two ends of the transmission shaft due to the precision error of machining or assembly of the mechanical parts when being arranged in pairs, further causes the larger circular run-out of the transmission shaft in the high-speed rotating process, not only aggravates the abrasion of the parts on the transmission shaft, but also increases the abrasion to the bearing on the transmission shaft, and, still can produce the noise pollution and the vibration phenomenon of great degree at its driven in-process, stability is relatively poor and life is short problem.

(II) technical scheme

The invention provides the following technical scheme: the utility model provides an eccentric guiding mechanism of bearing based on in axle transmission, includes the transmission shaft, the fixed support roller that has cup jointed in middle part of transmission shaft surface, the surface activity of support roller has cup jointed fixed shell, and the inside activity of fixed shell has cup jointed fixed connecting rod, the fixed movable shaft sleeve that has cup jointed in middle part of fixed connecting rod surface, the surface activity of activity shaft sleeve has cup jointed the regulation roller, and contacts between the surface of regulation roller and the inner wall of fixed shell, one side of fixed connecting rod surface and the activity has cup jointed balanced spring between regulation roller and fixed shell, the outside threaded connection who just is located fixed shell at the both ends of fixed connecting rod has the locking nut.

Preferably, one end of the supporting roller, which is located at one side of the adjusting roller, is provided with an inclined structure, and one end of the adjusting roller, which is located at one side of the supporting roller, is provided with an inclined structure corresponding to the inclined structure, and the supporting roller and the adjusting roller are in contact with each other under the action of the elastic force of the balance spring.

Preferably, the inner diameter of the through hole formed at the two ends of the fixed shell is larger than the outer diameter of the transmission shaft, and an elastic sealing gasket is arranged in the inner diameter of the through hole.

Preferably, the outer diameter of the left side of the supporting roller is smaller than the inner diameter of the right side of the inner cavity of the fixed housing, and the left end of the supporting roller is contacted with the left side of the inner cavity of the fixed housing under the elastic force of the adjusting roller and the balance spring.

(III) advantageous effects

The invention has the following beneficial effects:

this eccentric guiding mechanism of bearing based on in axle transmission, to supporting roller, the setting of fixed connecting rod and regulation roller, in order to change the radial skew of supporting roller into the side-to-side movement of adjusting roller and fixed connecting rod, and carry out the fixed stay operation to the supporting roller above that through the lock nut on the fixed connecting rod, and then realize the adjustment to transmission shaft installation accuracy, compare with current bearing mechanism, can effectively keep the axiality at this transmission shaft both ends, avoided leading to its great problem of circle run-out at high-speed rotatory in-process because of the processing or assembly error at its both ends, make it can keep higher stability, and be difficult for causing excessive wearing and tearing and noise pollution or the vibration phenomenon of great degree to spare part above that.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the adjusting roller mounting structure of the present invention;

fig. 3 is a partial cross-sectional view of the structure of the present invention.

In the figure: 1. a drive shaft; 2. supporting the roller; 3. fixing the housing; 4. fixing the connecting rod; 5. a movable shaft sleeve; 6. adjusting the roller; 7. a balance spring; 8. and locking the nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, a bearing eccentric adjustment mechanism based on shaft transmission includes a transmission shaft 1, a support roller 2 is fixedly sleeved at the middle of the outer surface of the transmission shaft 1, a fixed housing 3 is movably sleeved at the outer surface of the support roller 2, a fixed link 4 is movably sleeved inside the fixed housing 3, the number of the fixed links 4 can be set according to the bearing pressure of the bearing eccentric adjustment mechanism, and a plurality of sets of the fixed links 4 are arranged in a circumferential array with the central axis of the transmission shaft 1, as shown in fig. 2, a movable shaft housing 5 is fixedly sleeved at the middle of the outer surface of the fixed link 4, an adjusting roller 6 is movably sleeved at the outer surface of the movable shaft housing 5, the outer surface of the adjusting roller 6 contacts with the inner wall of the fixed housing 3 to effectively relieve the radial load pressure borne by the fixed link 4 and prevent the fixed link from warping, a balance spring 7 is movably sleeved at one side of the outer surface of the fixed link 4 and between the adjusting roller 6 and the fixed housing 3, the balance spring 7 is kept in a compressed state in an initial state, locking nuts 8 are connected to two ends of the fixed connecting rod 4 and located outside the fixed shell 3 in a threaded mode, and the locking nuts 8 are used for fixing the positions of the fixed connecting rod 4 and the adjusting roller 6 on the fixed connecting rod after the bearing eccentric adjusting mechanism is installed, so that the supporting roller 2 can be effectively supported and fixed.

In the technical scheme, one end of the supporting roller 2, which is positioned at one side of the adjusting roller 6, is set to be an inclined structure, one end of the adjusting roller 6, which is positioned at one side of the supporting roller 2, is set to be an inclined structure corresponding to the inclined structure, and the supporting roller 2 is in contact with the inclined structure under the action of the elastic force of the balance spring 7, so that when the supporting roller 2 on the transmission shaft 1 is radially offset, the radial offset is compensated through the forward and backward movement of the adjusting roller 6, and the adjustment of the installation accuracy of the transmission shaft 1 is further realized.

As shown in fig. 3, in the present embodiment, the inner diameter of the through hole formed at both ends of the fixed housing 3 is larger than the outer diameter of the transmission shaft 1, and an elastic sealing pad is provided in the inner diameter thereof to form a sealing structure inside the fixed housing 3 to prevent the grease therein from leaking.

In the technical scheme, the outer diameter of the left side of the supporting roller 2 is smaller than the inner diameter of the right side of the inner cavity of the fixed shell 3, and the left end of the supporting roller 2 is in mutual contact with the left side of the inner cavity of the fixed shell 3 under the elastic force action of the adjusting roller 6 and the balance spring 7, so that the supporting roller 2 on the transmission shaft 1 can perform deviation action in any direction in the inner cavity of the fixed shell 3, and the processing or assembly errors of mechanical parts on the two ends of the transmission shaft 1 are compensated.

The use method and the working principle of the embodiment are as follows:

firstly, a group of bearing eccentric adjusting mechanisms are respectively and fixedly installed at two ends of a transmission shaft 1, locking nuts 8 are loosened before assembly, so that balance springs 7 on a fixed connecting rod 4 are in a free opening state to press adjusting rollers 6 on the balance springs and support rollers 2 on the transmission shaft 1 to be in a contact state, then two ends of a fixed shell 3 are respectively and fixedly installed on corresponding mechanical parts, when two ends of the transmission shaft 1 are not on the same central axis, under the self rigidity, the support rollers 2 on two ends are respectively driven to deflect in corresponding directions, under the elastic force action of the balance springs 7, the adjusting rollers 6 on corresponding positions and fixed connecting rods 4 on the support rollers are driven to move left and right to maintain the contact state between the adjusting rollers and the support rollers 2, and then the locking nuts 8 at two ends of the fixed connecting rod 4 are respectively screwed to fix the fixed connecting rod 4 and the adjusting rollers 6 on the fixed connecting rod 4, the adjusting rollers 6 can effectively support and fix the supporting rollers 2 on the transmission shaft 1, and the adjustment of the installation precision of the transmission shaft 1 is realized by adjusting the left and right movement of the adjusting rollers 6 and the fixed connecting rods 4 on the adjusting rollers, so that the abrasion of parts in the transmission of the shaft is effectively reduced.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an eccentric guiding mechanism of bearing based on in axle transmission, includes transmission shaft (1), its characterized in that: the fixed support roller (2) that has cup jointed in middle part of transmission shaft (1) surface, the surface activity of supporting roller (2) has cup jointed fixed shell (3), and the inside activity of fixed shell (3) has cup jointed fixed connecting rod (4), the fixed movable shaft sleeve (5) that has cup jointed in middle part of fixed connecting rod (4) surface, the surface activity of activity shaft sleeve (5) has cup jointed regulation roller (6), and contacts between the surface of regulation roller (6) and the inner wall of fixed shell (3), one side of fixed connecting rod (4) surface and the activity has cup jointed balancing spring (7) between regulation roller (6) and fixed shell (3), the outside threaded connection that the both ends of fixed connecting rod (4) just are located fixed shell (3) has lock nut (8).

2. A bearing eccentricity adjustment mechanism in a shaft-based transmission, as claimed in claim 1, wherein: one end of the supporting roller (2) positioned at one side of the adjusting roller (6) is arranged to be an inclined structure, and one end of the adjusting roller (6) positioned at one side of the supporting roller (2) is arranged to be an inclined structure corresponding to the inclined structure, and the supporting roller and the adjusting roller are mutually contacted under the action of the elastic force of the balance spring (7).

3. A bearing eccentricity adjustment mechanism in a shaft-based transmission, as claimed in claim 2, wherein: the inner diameter of the through hole formed at the two ends of the fixed shell (3) is larger than the outer diameter of the transmission shaft (1), and an elastic sealing gasket is arranged in the inner diameter of the through hole.

4. A bearing eccentricity adjustment mechanism in a shaft-based transmission, as claimed in claim 3, wherein: the outer diameter of the left side of the supporting roller (2) is smaller than the inner diameter of the right side of the inner cavity of the fixed shell (3), and the left end of the supporting roller (2) is in contact with the left side of the inner cavity of the fixed shell (3) under the elastic force action of the adjusting roller (6) and the balance spring (7).