CN211117189U - Ball bearing mounting structure - Google Patents

Abstract

The utility model relates to the technical field of shaft transmission systems, and discloses a ball bearing mounting structure, which comprises a limiting device, a first bearing seat and a second bearing seat, wherein the limiting device is arranged between the first bearing seat and the second bearing seat, and the first bearing seat and the second bearing seat are respectively provided with a first mounting hole for fixedly mounting a ball bearing; the limiting device comprises a limiting seat and a limiting cover detachably connected to the limiting seat, a second mounting hole for positioning a rotating shaft is formed between the limiting seat and the limiting cover, and the second mounting hole and the first mounting hole are oppositely arranged; and the limiting seat is provided with limiting pieces which are slidably clamped at the two end sides of the first mounting hole respectively. This ball bearing mounting structure can improve the quality of installing ball bearing among the transmission system, guarantees the stability of ball bearing operation to effectual saving human cost.

Description

Ball bearing mounting structure

Technical Field

The utility model relates to an axle type transmission system technical field especially relates to a ball bearing mounting structure.

Background

At present, the bearing is an important part in a shaft type transmission system and plays an important role in a movement mechanism, so that the quality of the bearing installation plays an important role in the performance of the movement mechanism. In the installation process of the bearing, besides the requirement that the matching of the inner diameter and the outer diameter of the bearing needs to meet the corresponding technical requirements, the axial play size in the bearing assembly process also needs to be ensured. The matching of the inner diameter and the outer diameter of the bearing is mainly guaranteed by processing the size of a hole shaft, and a reasonable method is selected for assembly, so that the requirement can be met. The size of the axial clearance completely depends on the experience of workers during manual assembly, if the axial clearance of the bearing is too small, the temperature of the bearing can continuously rise in the moving process, and the shaft body expands and extends, so that the bearing is subjected to overlarge axial pressure, the movement is difficult, and a large amount of heat is generated at the same time, the temperature of the bearing is continuously increased, vicious circle is caused, and the rolling body of the bearing is blocked or the bearing is damaged quickly when running at high temperature; if the axial play of the bearing is too large, the bearing loses the proper positioning function, the vibration of the moving mechanism is large, and the noise caused by the bearing is also large. The axial play of the bearing directly affects the performance of the kinematic mechanism. In the prior art, the assembly process of the bearing is usually determined by the experience of workers, which has very high requirements on the experience of the workers and causes high production cost, but the qualification rate of the product cannot be effectively controlled, the product quality is low, the yield is not high, and the process requirements cannot be met.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the not enough of prior art, provide a ball bearing mounting structure, can improve the quality of installing ball bearing among the transmission system, guarantee the stability of ball bearing operation to effectual saving human cost.

In order to achieve the above object, the present invention provides a ball bearing mounting structure, which includes a limiting device, a first bearing seat and a second bearing seat, wherein the limiting device is disposed between the first bearing seat and the second bearing seat, and the first bearing seat and the second bearing seat are respectively provided with a first mounting hole for fixedly mounting a ball bearing;

the limiting device comprises a limiting seat and a limiting cover detachably connected to the limiting seat, a second mounting hole for positioning a rotating shaft is formed between the limiting seat and the limiting cover, and the second mounting hole and the first mounting hole are oppositely arranged;

and the limiting seat is provided with limiting pieces which are slidably clamped at the two end sides of the first mounting hole respectively.

Optionally, a clamp spring is clamped in the first mounting hole, a clamp groove is formed in the inner wall of the first mounting hole, the clamp spring is positioned in the clamp groove, and the clamp spring is located in the first mounting hole and far away from one end of the limiting seat.

Optionally, the top of spacing seat is equipped with first constant head tank, the bottom of spacing lid is equipped with the second constant head tank, first constant head tank with the mutual amalgamation of second constant head tank forms the second mounting hole, be located on the spacing seat the both ends side department in first constant head tank has seted up the spacing groove respectively, spacing piece set up in the spacing inslot.

Optionally, the first positioning groove, the second positioning groove and the limiting groove are all semicircular grooves, and the limiting groove is arranged along the edge of the outer contour of the first positioning groove.

Optionally, the ball bearing mounting structure further includes a fixing seat, and the first bearing seat, the limiting seat and the second bearing seat are mounted on the fixing seat in parallel.

Optionally, both sides of the first bearing seat and both sides of the second bearing seat are fixedly connected to the fixing seat through first connecting pieces, and both sides of the limiting seat are fixedly connected to the fixing seat through second connecting pieces.

Optionally, the bottom of the two sides of the first bearing seat is provided with a first positioning hole respectively, the fixing seat is provided with a second positioning hole corresponding to the first positioning hole, a first fixing pin penetrates through the first positioning hole and the second positioning hole, and a first through hole for the first connecting piece to pass through is formed in the first fixing pin.

Optionally, the bottoms of the two sides of the limiting seat are respectively provided with a third positioning hole, the fixing seat is provided with a fourth positioning hole corresponding to the third positioning hole, a second fixing pin penetrates through the third positioning hole and the fourth positioning hole, and a second through hole for the second connecting piece to pass through is formed in the second fixing pin.

Optionally, the two sides of the limiting cover are connected with the limiting seat through a third connecting piece, fifth positioning holes are respectively formed in the bottoms of the two sides of the limiting cover, sixth positioning holes corresponding to the fifth positioning holes are formed in the limiting seat, third fixing pins penetrate through the fifth positioning holes and the sixth positioning holes, and third through holes for the third connecting piece to pass through are formed in the third fixing pins.

Optionally, a mounting groove is formed in the fixing seat, the first bearing seat, the second bearing seat and the limiting seat are all positioned in the mounting groove, and the two side faces of the first bearing seat, the two side faces of the second bearing seat and the two side faces of the limiting seat are all attached to the inner wall of the mounting groove.

The embodiment of the utility model provides a ball bearing mounting structure compares with prior art, and its beneficial effect lies in:

the utility model discloses ball bearing mounting structure can carry out the installation of the ball bearing in pairs among the axle type transmission system, can carry out effectual affirmation to the mounted position of axis of rotation and whole transmission system's axial clearance through the stop device who sets up between primary shaft bearing and secondary shaft bearing, and spacing lid that spacing seat and detachably on it are connected can conveniently install and dismantle the axis of rotation. The two end sides of the second mounting hole of the limiting seat are respectively clamped with limiting pieces, in the practical operation, the thickness of the limiting pieces can be reasonably selected according to the expected axial play range, the limiting pieces with proper thickness are clamped on the two end sides of the second mounting hole, when the rotating shaft is positioned in the second mounting hole, the limiting pieces are positioned between the end sides of the rotating shaft and the limiting seat, therefore, when the rotating shaft rotates smoothly, the limiting pieces can slide between the rotating shaft and the limiting seat according to the thickness of the limiting pieces, the sum of the axial rotation amount of the rotating shaft and the axial deformation amount generated by high temperature can be ensured to be in the theoretical axial play range of the bearing pair when the whole transmission system operates, the mounting quality of the paired bearings is improved, the stability of the ball bearing pair capable of operating in the whole transmission system is ensured, and the risk of bearing part damage caused by improper axial play setting is reduced, the service life of the ball bearing pair is prolonged, the cost of parts is saved, the corresponding requirements on workers can be reduced, and the labor cost is saved.

Drawings

Fig. 1 is a schematic view of a first axial structure of a ball bearing mounting structure according to an embodiment of the present invention;

fig. 2 is a schematic second axial-view structural diagram of the ball bearing mounting structure according to the embodiment of the present invention;

fig. 3 is a first cross-sectional structural schematic view of a ball bearing mounting structure of an embodiment of the present invention;

fig. 4 is a second cross-sectional structural schematic view of a ball bearing mounting structure of an embodiment of the present invention;

fig. 5 is a third cross-sectional structural schematic view of a ball bearing mounting structure of an embodiment of the present invention;

fig. 6 is a schematic structural view of a first bearing seat according to an embodiment of the present invention;

fig. 7 is a schematic cross-sectional view of a first bearing seat according to an embodiment of the present invention;

fig. 8 is a schematic structural view of a limiting seat according to an embodiment of the present invention;

fig. 9 is a schematic cross-sectional view of a spacing base according to an embodiment of the present invention;

fig. 10 is a schematic structural view of a limit cover according to an embodiment of the present invention;

fig. 11 is a schematic cross-sectional view of a position-limiting cover according to an embodiment of the present invention;

fig. 12 is a schematic structural view of a fixing base according to an embodiment of the present invention;

fig. 13 is a schematic sectional view of a fixing base according to an embodiment of the present invention;

fig. 14 is a schematic view of the entire structure of a rotating shaft according to an embodiment of the present invention.

In the figure, 1, a first bearing seat; 11. a first positioning hole; 12. a first connection hole; 2. a second bearing housing; 3. a limiting device; 31. a limiting seat; 311. a first positioning groove; 312. a limiting groove; 313. a third positioning hole; 314. a sixth positioning hole; 315. a third connection hole; 316. a sixth connection hole; 32. a limiting cover; 321. a second positioning groove; 322. a fifth positioning hole; 323. a fifth connecting hole; 4. a first mounting hole; 5. a second mounting hole; 6. a limiting sheet; 7. a clamp spring; 8. a card slot; 9. a fixed seat; 91. a second positioning hole; 92. a fourth positioning hole; 93. mounting grooves; 94. a second connection hole; 95. a fourth connection hole; 10. a first connecting member; 20. a second connecting member; 30. a first fixing pin; 40. a second fixing pin; 50. a third connecting member; 60. a third fixing pin; 70. a rotating shaft; 701. a splined end; 702. a non-splined end; 703. a first stage; 704. a second stage; 705. a third stage; 80. a ball bearing.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

As shown in fig. 1 to 14, a ball bearing 80 mounting structure according to a preferred embodiment of the present invention includes a limiting device 3, a first bearing seat 1 and a second bearing seat 2, and the limiting device 3 is disposed between the first bearing seat 1 and the second bearing seat 2, the first bearing seat 1 and the second bearing seat 2 are respectively provided with a first mounting hole 4 for fixedly mounting a ball bearing 80, the limiting device 3 includes a limiting seat 31 and a limiting cover 32 detachably connected to the limiting seat 31, a second mounting hole 5 for positioning a rotating shaft 70 is formed between the limiting seat 31 and the limiting cover 32, the second mounting hole 5 is arranged opposite to the first mounting hole 4, and a limiting piece 6 is slidably clamped at two end sides of the first mounting hole 4 on the limiting seat 31.

Based on the above structure, in the shaft transmission system, when the ball bearings 80 are installed in pairs, the installation position and the axial play can be effectively determined by using the installation structure of the ball bearings 80, the ball bearings 80 are respectively press-fitted in the corresponding first installation holes 4 on the first bearing seat 1 and the second bearing seat 2, so that the paired ball bearings 80 are positioned on the first bearing seat 1 and the second bearing seat 2, the first bearing seat 1 and the second bearing seat 2 on which the ball bearings 80 are already installed are installed on the corresponding positions of the rotating shaft 70, and the smooth operation of the rotating shaft 70 is ensured. The rotating shaft 70 is positioned and installed on the limiting seat 31, the limiting sheet 6 with proper thickness is selected according to the requirement of an actual transmission system, the limiting sheet 6 with the selected thickness is installed on the limiting seat 31 and positioned at the side end of the second installation hole 5, the normal rotation of the rotating shaft 70 on the limiting seat 31 and the limiting sheet 6 is ensured, the limiting cover 32 is covered on the limiting seat 31 to position the rotating shaft 70 in the closed second installation hole 5, the limiting sheet 6 is positioned between the end side of the rotating shaft 70 and the end side of the limiting seat 31, when the rotating shaft 70 rotates, the limiting sheet 6 can effectively slide between the rotating shaft 70 and the limiting shaft, so that the sum of the axial scraping amount and the axial deformation amount generated at high temperature when the rotating shaft 70 operates can be within the theoretical axial clearance of the ball bearing 80 pair in the system, and the perfect conversion of the axial clearance of the ball bearing 80 pair is realized, the axial clearance of the bearing pair is conveniently fixed in the range of the expected clearance through manual control. The installation quality of the paired ball bearing 80 in the transmission system can be improved through the matching of the first bearing seat 1, the second bearing seat 2 and the limiting seat 31, the wind direction of part damage caused during installation is reduced, the stability of the paired ball bearing 80 in the operation process of the system is ensured, and the reliability of an experiment is improved. This set of mounting structure can realize the definite to the axial internal clearance of ball bearing 80 pair through the reasonable selection to 6 thicknesses of spacing piece, improves and seeks the life of bearing in transmission system in pairs, practices thrift the cost of spare part, and the use of device meets the end to staff's empirical requirement, and then can practice thrift the human cost.

Wherein, 4 inside callipers of first mounting hole are equipped with jump ring 7, be equipped with draw-in groove 8 on the inner wall of first mounting hole 4, jump ring 7 location sets up in draw-in groove 8, and jump ring 7 is located the one end that spacing seat 31 was kept away from in first mounting hole 4 one end department jump ring 7 is located first bearing frame 1 and second bearing frame 2 one end that deviates from each other, can effectually avoid pressing the ball bearing 80 who locates in first bearing frame 1 and second bearing frame 2 to drop, make ball bearing 80 can be fixed a position between the distolateral of jump ring 7 and axis of rotation 70, guarantee the stability of ball bearing 80 installation. The top of the limiting seat 31 is provided with a first positioning groove 311, the bottom of the limiting cover 32 is provided with a second positioning groove 321, the first positioning groove 311 and the second positioning groove 321 are mutually spliced to form a second mounting hole 5, the limiting seat 31 is provided with a limiting groove 312 at the two end sides of the first positioning groove 311, the limiting sheet 6 is arranged in the limiting groove 312, the width of the limiting groove 312 at the two end sides of the limiting seat 31 is constant, and it is always larger than the thickness of the position-limiting sheet 6, so that after the rotating shaft 70 is mounted on the position-limiting device 3, the position-limiting sheet 6 can slide in the position-limiting groove 312, and then the axial displacement of the rotating shaft 70 and the axial deformation amount at high temperature of the system during operation can be conveniently calculated through the width of the limiting groove 312 and the thickness of the limiting sheet 6, so that the axial clearance of the ball bearing 80 pair can be conveniently ensured to be always kept in the expected clearance range. In this embodiment, the first positioning groove 311, the second positioning groove 321, and the limiting groove 312 are all semicircular grooves, and the limiting groove 312 is disposed along the outer contour edge of the first positioning groove 311, and the inner diameter of the limiting groove 312 is greater than the inner diameter of the first positioning groove 311, so that the limiting sheet 6 can be reliably ensured to be positioned at one end of the limiting seat 31, and after the rotating shaft 70 is positioned and installed, the limiting sheet 6 is defined between the end side of the rotating shaft 70 and the end side of the limiting seat 31.

In addition, this ball bearing 80 mounting structure still includes fixing base 9, and first bearing frame 1, spacing seat 31, the mutual parallel mount of second bearing frame 2 are on fixing base 9, and fixing base 9 can guarantee effective location and installation to first bearing frame 1, second bearing frame 2 and spacing seat 31, ensures the stability of each part installation. The two sides of the first bearing seat 1 and the two sides of the second bearing seat 2 are respectively fixedly connected with the fixed seat 9 through the first connecting piece 10, a first connecting hole 12 and a first positioning hole 11 which are mutually communicated are respectively arranged on the two sides of the first bearing seat 1 along the axial direction from top to bottom, the inner diameter of the first positioning hole 11 is larger than that of the first connecting hole 12, a second positioning hole 91 and a second connecting hole 94 which are mutually communicated are respectively arranged on the two sides of the fixed seat 9 opposite to the first bearing seat 1 along the axial direction from top to bottom, the inner diameter of the second positioning hole 91 is larger than that of the second connecting hole 94, the second positioning hole 91 and the first positioning hole 11 are oppositely arranged and have the same inner diameter, the second connecting hole 94 and the first connecting hole 12 are oppositely arranged and have the same inner diameter, a first fixing pin 30 penetrates through the first positioning hole 11 and the second positioning hole 91, and a first through hole with the same inner diameter as that of the first, when first connecting piece 10 is connected first bearing frame 1 and fixing base 9, pass first connecting hole 12, first through-hole and second connecting hole 94 in proper order to guarantee the reliability of connecting, can be convenient for first bearing frame 1 through first fixed pin 30 and fix a position on fixing base 9, easy to assemble the operation. The structural design of the second bearing seat 2 is completely the same as that of the first bearing seat 1, so that the machining process can be completed in batches, the machining efficiency is improved, and the machining quality is ensured.

Further, two sides of the position-limiting seat 31 are fixedly connected with the fixing seat 9 through the second connecting member 20, two sides of the position-limiting seat 31 are respectively provided with a third connecting hole 315 and a third positioning hole 313 which are communicated with each other from top to bottom along the axial direction, the inner diameter of the third positioning hole 313 is larger than that of the third connecting hole 315, two sides of the fixing seat 9 opposite to the position-limiting seat 31 are respectively provided with a fourth positioning hole 92 and a fourth connecting hole 95 which are communicated with each other from top to bottom along the axial direction, the inner diameter of the fourth positioning hole 92 is smaller than that of the fourth connecting hole 95, the fourth positioning hole 92 is arranged opposite to the third positioning hole 313, a second fixing pin 40 penetrates through the third positioning hole 313 and the fourth positioning hole 92, a second through hole for the second connecting member 20 to penetrate through is arranged in the second fixing pin 40, and when the position-limiting seat 31 and the fixing seat 9 are connected by the second connecting member 20, the, The second through hole and the fourth connecting hole 95 can further determine the connecting position of the limiting seat 31 on the fixing seat 9 through the second fixing pin 40, and the accuracy of the installation operation is improved. The two sides of the limiting cover 32 are connected with the limiting seat 31 through the third connecting piece 50, the two sides of the limiting cover 32 are provided with a fifth connecting hole 323 and a fifth positioning hole 322 in a communication manner from top to bottom along the axial direction, the position of the limiting seat 31 corresponding to the two sides of the limiting cover 32 is provided with a sixth positioning hole 314 and a sixth connecting hole 316 in a communication manner from top to bottom along the axial direction, the fifth positioning hole 322 and the sixth positioning hole 314 are arranged oppositely, and a third fixing pin 60 penetrates through the fifth positioning hole 322 and the sixth positioning hole 314, so that the limiting cover 32 and the limiting seat 31 can be effectively positioned when being connected. A third through hole communicating the fifth connecting hole 323 and the sixth connecting hole 316 penetrates through the third fixing pin 60, and when the third connecting member 50 is adopted to fixedly connect the limiting cover 32 and the limiting seat 31, the third positioning member sequentially penetrates through the fifth connecting hole 323, the third through hole and the sixth connecting hole 316, so that the reliability of connection between the limiting cover 32 and the limiting seat 31 is reliably ensured.

It should be noted that, in this embodiment, the first connecting piece 10, the second connecting piece 20 and the third connecting piece 50 are all bolts, which can ensure the fixing of the first bearing seat 1, the second bearing seat 2 and the limiting seat 31 on the fixing seat 9 and the fixing of the limiting cover 32 and the limiting seat 31, and is convenient to operate, and also convenient for the worker to detach, maintain and replace the system, and the connecting structure is simple in design, and is effective and reliable. However, in other embodiments, the types of the first connecting member 10, the second connecting member 20 and the third connecting member 50 are not limited to the embodiment, and the types can be selected according to actual needs.

In addition, be provided with mounting groove 93 on the fixing base 9, first bearing frame 1, second bearing frame 2 and spacing seat 31 are all fixed a position and are set up in mounting groove 93, and first bearing frame 1's both sides face, second bearing frame 2's both sides face, spacing seat 31's both sides face all laminates with the inner wall of mounting groove 93 mutually, mounting groove 93 structure on the fixing base 9 can be to first bearing frame 1, second bearing frame 2 and spacing seat 31 carry out effectual spacing, and guarantee the stability of structural installation, the second locating hole 91 that is equipped with on the fixing base 9, fourth locating hole 92, second connecting hole 94 and fourth connecting hole 95 all are located the tank bottom of mounting groove 93.

The utility model discloses a ball bearing 80 mounting structure is when assembling, refer to FIG. 14 for the structure of transmission system in the rotating shaft 70, it is including spline end 701 and non-spline end 702, and the middle part of rotating shaft 70 still including first section 703, second section 704 and the third section 705 that is connected in order, and the external diameter of cutting first section 703 and third section 705 all is greater than the external diameter of second section 704, installs this rotating shaft 70 and does in asking the concrete working process of bearing mounting structure:

s1, respectively pressing and mounting the two ball bearings 80 in the first bearing seat 1 and the second bearing seat 2 in a one-to-one corresponding manner by adopting a pressing and mounting machine, and then pressing the bearing seat assembly with the pressed and mounted ball bearings 80 into corresponding positions on the rotating shaft 70; wherein the splined end 701 of the rotating shaft 70 is located at the end side of the first bearing housing 1, and the non-splined end 702 of the rotating shaft 70 is located at the end side of the second bearing housing 2;

s2, installing the two clamp springs 7 in the clamping grooves 8 in the first bearing seat 1 and the clamping grooves 8 in the second bearing seat 2 in a one-to-one correspondence mode respectively;

s3, first installing the spline end 701 of the rotating shaft 70, respectively installing two first fixing pins 30 into the first positioning holes 11 on the first bearing block 1, then positioning the first fixing pins 30 in the second positioning holes 91 on the fixing base 9, and fixedly connecting the first fixing pins 30 and the first connecting hole 12 of the first bearing block 1 and the second connecting hole 94 on the fixing base 9 by the first connecting piece 10 penetrating through the first connecting hole 12 and the second connecting hole 94;

s4, rotating the rotating shaft 70, checking the smoothness of the rotation of the rotating shaft 70, and continuing the next step after confirming no problem;

s5, fixing the limit seat 31, inserting a second fixing pin 40 into the third positioning hole 313 of the limit seat 31 and the fourth positioning hole 92 of the fixed seat 9, and fixedly connecting the third connecting hole 315 of the limit seat 31 and the fourth connecting hole 95 of the fixed seat 9 through the second connecting piece 20;

s5, selecting a positioning clamp of a limiting sheet 6 with proper thickness to be arranged in the limiting groove 312 on the limiting seat 31, positioning the second section 704 of the rotating shaft 70 in the first positioning groove 311 on the limiting seat 31, and at the moment, arranging the first section 703 and the third section 705 of the rotating shaft 70 at two end sides of the limiting seat 31 respectively;

s6, checking the smoothness of the rotation of the rotating shaft 70, and continuing the next step after confirming no problem;

s7, mounting the non-splined end 702 of the rotating shaft 70, and after corresponding the first connecting hole 12 on the second bearing seat 2 to the corresponding connecting hole on the fixed seat 9, directly adopting the first connecting piece 10 to penetrate through for fixed connection;

s8, checking the smoothness of the rotation of the rotating shaft 70, and continuing the next step after confirming no problem;

s9, inserting the two third fixing pins 60 into the fifth positioning holes 322 of the position limiting cover 32, respectively, positioning the third fixing pins 60 in the sixth positioning holes 314 of the position limiting seat 31, and fixing the position limiting cover 32 and the position limiting seat 31 by using the third connecting member 50 to pass through the fifth connecting hole 323 and the sixth connecting hole 316, thereby completing the assembly of the whole installation structure.

To sum up, the embodiment of the utility model provides a ball bearing 80 mounting structure, it can carry out the installation of axle type transmission system's ball bearing 80 in pairs, can carry out effectual affirmation to the mounted position of axis of rotation 70 and whole transmission system's axial gap through setting up stop device 3 between primary shaft bearing 1 and secondary shaft bearing 2, spacing seat 31 and the spacing lid 32 that detachably on it is connected can conveniently install and dismantle axis of rotation 70. The two end sides of the first mounting hole 4 of the limiting seat 31 are respectively clamped with the limiting sheets 6, in the actual operation, the thickness of the limiting sheets 6 can be reasonably selected according to the expected axial play range, the limiting sheets 6 with proper thickness are clamped on the two end sides of the first mounting hole 4, when the rotating shaft is positioned in the first mounting hole 4, the limiting sheets 6 are positioned between the end sides of the rotating shaft and the limiting seat 31, therefore, when the rotating shaft rotates smoothly, the limiting sheets 6 can slide between the rotating shaft and the limiting seat 31 according to the thickness of the limiting sheets, the sum of the axial displacement of the rotating shaft and the axial deformation generated by high temperature can be ensured to be in the theoretical axial play range of the bearing pair when the whole transmission system operates, the mounting quality of the paired bearings is improved, and the running stability of the ball bearing 80 pair in the whole transmission system is ensured, reduce because the risk of the bearing part damage that the improper caused of axial play size setting, improve the life of ball bearing 80 pair, practice thrift the cost of spare part, also can reduce the corresponding requirement to the staff, practice thrift the cost of labor.

It should be understood that the terms "first", "second", etc. are used herein to describe various information, but the information should not be limited to these terms, and these terms are only used to distinguish one type of information from another. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information, without departing from the scope of the present invention.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and replacements can be made without departing from the technical principle of the present invention, and these modifications and replacements should also be regarded as the protection scope of the present invention.

Claims (10)

1. A ball bearing mounting structure is characterized by comprising a limiting device, a first bearing seat and a second bearing seat, wherein the limiting device is arranged between the first bearing seat and the second bearing seat, and first mounting holes for fixedly mounting a ball bearing are respectively formed in the first bearing seat and the second bearing seat;

the limiting device comprises a limiting seat and a limiting cover detachably connected to the limiting seat, a second mounting hole for positioning a rotating shaft is formed between the limiting seat and the limiting cover, and the second mounting hole and the first mounting hole are oppositely arranged;

and the limiting seat is provided with limiting pieces which are slidably clamped at the two end sides of the first mounting hole respectively.

2. The ball bearing mounting structure of claim 1, wherein a snap spring is clamped in the first mounting hole, a snap groove is formed in the inner wall of the first mounting hole, the snap spring is positioned in the snap groove, and the snap spring is located at one end of the first mounting hole, which is far away from the limiting seat.

3. The ball bearing mounting structure according to claim 1, wherein a first positioning groove is formed in a top portion of the retainer seat, a second positioning groove is formed in a bottom portion of the retainer cover, the first positioning groove and the second positioning groove are engaged with each other to form the second mounting hole, retaining grooves are respectively formed in the retainer seat at both end sides of the first positioning groove, and the retaining piece is disposed in the retaining groove.

4. The ball bearing mounting structure according to claim 3, wherein the first positioning groove, the second positioning groove, and the retainer groove are all semicircular grooves, and the retainer groove is provided along an outer contour edge of the first positioning groove.

5. The ball bearing mounting structure according to any one of claims 1 to 4, further comprising a fixing seat on which the first bearing seat, the stopper seat, and the second bearing seat are mounted in parallel with each other.

6. The ball bearing mounting structure of claim 5, wherein both sides of the first bearing seat and both sides of the second bearing seat are fixedly connected to the fixing seat through first connecting members, respectively, and both sides of the stopper seat are fixedly connected to the fixing seat through second connecting members.

7. The ball bearing mounting structure according to claim 6, wherein the first bearing seat is provided with first positioning holes at bottom portions of both sides thereof, the fixing seat is provided with second positioning holes corresponding to the first positioning holes, first fixing pins are inserted into the first positioning holes and the second positioning holes, and first through holes for the first connecting members to pass through are formed in the first fixing pins.

8. The ball bearing mounting structure of claim 6, wherein the bottom portions of the two sides of the limiting seat are respectively provided with a third positioning hole, the fixing seat is provided with a fourth positioning hole corresponding to the third positioning hole, a second fixing pin is inserted into the third positioning hole and the fourth positioning hole, and a second through hole for the second connecting member to pass through is formed in the second fixing pin.

9. The ball bearing mounting structure according to claim 6, wherein both sides of the position-limiting cover are connected to the position-limiting seat by third connecting members, bottom portions of both sides of the position-limiting cover are respectively provided with fifth positioning holes, the position-limiting seat is provided with sixth positioning holes corresponding to the fifth positioning holes, third fixing pins are inserted into the fifth positioning holes and the sixth positioning holes, and third through holes for the third connecting members to pass through are provided in the third fixing pins.

10. The ball bearing mounting structure of claim 5, wherein the fixing seat is provided with a mounting groove, the first bearing seat, the second bearing seat and the limiting seat are positioned in the mounting groove, and two side surfaces of the first bearing seat, two side surfaces of the second bearing seat and two side surfaces of the limiting seat are attached to the inner wall of the mounting groove.

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