CN217207325U

CN217207325U - Wear-resistant four-point contact ball roller bearing

Info

Publication number: CN217207325U
Application number: CN202220475910.5U
Authority: CN
Inventors: 秦贞山; 陆兴龙
Original assignee: Awd Bearing Corp
Current assignee: Awd Bearing Corp
Priority date: 2022-03-07
Filing date: 2022-03-07
Publication date: 2022-08-16
Anticipated expiration: 2032-03-07

Abstract

The utility model discloses a four point contact ball roller bearing that stand wear and tear, including the installation axle body, the installation axle body is including fixed axle body, the axle body of fixed axle body leans on the upper end and all is provided with the axle body screw that four equidistance distribute by the position of lower extreme, the axle body of fixed axle body leans on the upper end and all has the outside fixed disk through axle body screw bolted connection with by the position of lower extreme, the outside fixed disk is including annular fixed disk, set up the fixed disk screw that four equidistance distribute on the inside wall of annular fixed disk, the lateral wall intermediate position of fixed axle body rotates and is connected with the middle level gyro wheel. The utility model discloses utilize a plurality of bolt structures for inside each component of gyro wheel can be more convenient maintenance, reduced the maintenance degree of difficulty, reduced the maintenance cost, utilize the contact surface area of inside and outside circle that the design can significantly reduce of inside and outside roller, reduceed the inside frictional force of axis body, make the rotation process level and smooth more.

Description

Wear-resistant four-point contact ball roller bearing

Technical Field

The utility model relates to a four point contact ball roller bearing field especially relates to four point contact ball roller bearing who stands wear and tear.

Background

The four-point contact ball bearing is a separated bearing, also can be said to be an angular contact ball bearing with a set of bearings capable of bearing bidirectional axial load, the inner and outer ring raceways are peach-shaped sections, when no load or pure radial load is applied, the steel ball and the ferrule are in four-point contact, this is also the name, when only a pure axial load is applied, the steel ball and the ferrule are in two-point contact, the four-point contact ball bearing can bear bidirectional axial load, can also bear torque load, has the functions of a single-row angular contact ball bearing and a double-row angular contact ball bearing, can ensure normal work only when the four-point contact ball bearing forms two-point contact, therefore, the four-point contact ball bearing is generally suitable for the occasions of two-point contact under pure axial loads or composite loads with large axial loads, and the four-point contact ball bearing has high limit rotating speed and is also suitable for the occasions of high-speed operation.

However, the friction force between the roller and the bearing excircle and the bearing inner circle of the existing four-point contact ball roller bearing is large, so that the friction force inside the shaft body is increased, the inner circle, the outer circle and the roller are easy to damage after long-term use, the later maintenance is also very difficult, and the maintenance is not convenient enough.

The prior patent (CN 205978099U) discloses a four-point contact ball roller bearing, which comprises a bearing outer ring, a bearing inner ring, and a plurality of balls arranged between the bearing outer ring and the bearing inner ring, wherein the bearing inner ring comprises a left half inner ring and a right half inner ring, the left half inner ring is provided with a through hole perpendicular to the radius direction of the left half inner ring, the right half inner ring is provided with a screw hole matched with the through hole for use, the through hole and the screw hole are fixed by a screw, and the through hole comprises a rear hole of a fastening bolt and a front hole connected with the rear hole and used for placing a nut; compared with the prior art, the utility model discloses a more balls can be adorned down to half inner circle structure, through the fix with screw between half inner circle on the left side and the half inner circle on the right side, and the installation is simple, is difficult for droing, and bearing capacity improves greatly.

However, this device still has some problems: the bearing inner ring outer ring is in direct contact with the bearing inner ring outer ring, the friction area is large, the rotation of the shaft body becomes not smooth enough, abnormal sound easily occurs, the inner circle and the outer circle are easy to damage after long-term friction, and the later maintenance cost is improved.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects in the prior art and providing a wear-resistant four-point contact ball roller bearing.

In order to achieve the above purpose, the utility model adopts the following technical scheme: wear-resisting four-point contact ball roller bearing, including the installation axle body, the installation axle body is including fixed axle body, the axle body of fixed axle body leans on the upper end and all is provided with the axle body screw that four equidistance distribute with the position of leaning on the lower extreme, the axle body of fixed axle body leans on the upper end and all has the outside fixed disk through axle body screw bolted connection with the position of leaning on the lower extreme, the lateral wall intermediate position of fixed axle body rotates and is connected with the middle level gyro wheel.

As a further description of the above technical solution:

the outside fixed disk is including having annular fixed disk, set up four equidistance distribution's fixed disk screw on the inside wall of annular fixed disk.

As a further description of the above technical solution:

the fixed disk screw hole is matched with the shaft body screw hole for use, and the outer side fixed disk is connected with the mounting shaft body bolt through the fixed disk screw hole.

As a further description of the above technical solution:

middle level gyro wheel is including rotating the wheel, fixed mounting has inboard collar on the inside wall of rotation wheel, the ring of inboard collar is installed the inboard roller on one's body, the up end of rotating the wheel all sets up four roller grooves that are the equidistance and distribute with lower terminal surface, the position fixed mounting that leans on the upper end is leaned on to the cell body inner wall in roller groove has the mounting pad, the top of mounting pad is provided with the annular, the up end bolted connection of mounting pad has the outside collar, roller inslot internally mounted has the outside roller.

As a further description of the above technical solution:

the outside collar is installed inside the annular groove.

As a further description of the above technical solution:

the outer rollers are movably connected with the upper side wall and the lower side wall of the annular fixed disc.

As a further description of the above technical solution:

the middle layer roller is rotatably connected with the mounting shaft body through the inner side roller.

As a further description of the above technical solution:

the mounting shaft body, the outer side fixing disc and the middle layer roller are all made of metal steel.

The utility model discloses following beneficial effect has:

in the utility model discloses, utilize axle body screw to couple together outside fixed disk bolted connection, made things convenient for the dismouting of outside fixed disk for operating personnel can be more convenient maintain the inside component of axis body, utilize inboard collar installation inboard roller, utilize roller groove installation inboard roller, utilize the annular with outside collar installation on the mount pad, can prevent that outside roller from droing from the roller inslot.

In the utility model, utilize outside roller will be connected outside fixed disk and middle level gyro wheel and rotate and be connected, reduced the area of contact surface of interior circle with the excircle, reduced the inside frictional force of axis body for the rotation of axis body is more level and smooth.

In the utility model discloses, utilize a plurality of bolt structures for each inside component of gyro wheel can be more convenient maintenance, reduced the maintenance degree of difficulty, reduced the maintenance cost, utilize the contact surface area of inside and outside circle that the design can significantly reduce of inside and outside roller, reduceed the inside frictional force of axis body, make the rotation process level and smooth more.

Drawings

Fig. 1 is an overall view of a wear-resistant four-point contact ball roller bearing according to the present invention;

FIG. 2 is a schematic view of the mounting shaft body of the wear resistant four point contact ball roller bearing of the present invention;

FIG. 3 is a schematic view of the outer stationary disk of the wear resistant four point contact ball roller bearing of the present invention;

FIG. 4 is a schematic view of a middle roller of the wear resistant four point contact ball roller bearing of the present invention;

FIG. 5 is a schematic view of the outer mounting ring and roller groove of the wear resistant four point contact ball roller bearing of the present invention;

fig. 6 is a schematic view of the mounting pads and ring grooves of the wear-resistant four-point contact ball roller bearing of the present invention.

Illustration of the drawings:

100. mounting a shaft body; 200. an outer side fixing disc; 300. a middle layer roller; 101. fixing the shaft body; 102. a shaft body screw hole; 201. an annular fixed disc; 202. a fixed disk screw hole; 301. a rotating wheel; 302. an inner side mounting ring; 303. an inner roller; 304. an outer roller; 305. an outer mounting ring; 306. a roller groove; 307. a mounting mat; 308. and a ring groove.

Detailed Description

Referring to fig. 1-6, the present invention provides an embodiment: wear-resistant four-point contact ball roller bearing, including installation axle body 100, installation axle body 100 is including fixed axle body 101, the axle body of fixed axle body 101 leans on the upper end and all is provided with the axle body screw 102 that four equidistance distribute with the position of leaning on the lower extreme, the axle body of fixed axle body 101 leans on the upper end and all has outside fixed disk 200 through axle body screw 102 bolted connection with the position of leaning on the lower extreme, outside fixed disk 200 is including annular fixed disk 201, set up four equidistance distributed's fixed disk screw 202 on the inside wall of annular fixed disk 201, fixed disk screw 202 uses with axle body screw 102 cooperation, outside fixed disk 200 passes through fixed disk screw 202 and installation axle body 100 bolted connection.

The middle position of the outer side wall of the fixed shaft body 101 is rotatably connected with a middle layer roller 300, the middle layer roller 300 comprises a rotating wheel 301, an inner side mounting ring 302 is fixedly mounted on the inner side wall of the rotating wheel 301, an inner side roller 303 is mounted on the ring body of the inner side mounting ring 302, four roller grooves 306 distributed at equal intervals are respectively formed in the upper end surface and the lower end surface of the rotating wheel 301, a mounting pad 307 is fixedly mounted at the position close to the upper end of the inner wall of the roller groove 306, a ring groove 308 is arranged above the mounting pad 307, the upper end surface of the mounting pad 307 is connected with an outer side mounting ring 305 through a bolt, an outer side roller 304 is mounted in the roller groove 306, the outer side mounting ring 305 is mounted in the ring groove 308, the outer side roller 304 is movably connected with the upper side wall and the lower side wall of the annular fixed disc 201, the middle layer roller 300 is rotatably connected with the mounting shaft body 100 through the inner side roller 303 to mount the shaft body 100, the outer fixed disc 200 and the middle roller 300 are made of metal steel.

The working principle is as follows: in the utility model discloses, utilize axle body screw 102 to couple together outside fixed disk 200 bolted connection, the dismouting of outside fixed disk 200 has been made things convenient for, make operating personnel can be more convenient the inside component of maintenance axis body, utilize inboard collar 302 installation inboard roller 303, utilize roller groove 306 installation inboard roller 303, utilize annular groove 308 to install outside collar 305 on mounting pad 307, can prevent that outside roller 304 from droing from roller groove 306, utilize outside roller 304 will be connected outside fixed disk 200 and middle level gyro wheel 300 and rotate and be connected, the contact surface area of interior circle and excircle has been reduced, the inside frictional force of axis body has been reduced, make the rotation of axis body more level and smooth.

Claims

1. Wear-resistant four-point contact ball roller bearing, including installation axle body (100), its characterized in that: installation axle body (100) is including fixed axle body (101), the axle body of fixed axle body (101) leans on the upper end and all is provided with axle body screw (102) that four equidistance distribute with the position of leaning on the lower extreme, the axle body of fixed axle body (101) leans on the upper end and all has outside fixed disk (200) through axle body screw (102) bolted connection with the position of leaning on the lower extreme, the lateral wall intermediate position of fixed axle body (101) rotates and is connected with middle level gyro wheel (300).

2. The wear resistant four-point contact ball roller bearing of claim 1 wherein: the outer side fixing disc (200) comprises an annular fixing disc (201), and four fixing disc screw holes (202) distributed at equal intervals are formed in the inner side wall of the annular fixing disc (201).

3. The wear resistant four-point contact ball roller bearing of claim 2 wherein: the outer side fixing disc (200) is connected with the mounting shaft body (100) through the fixing disc screw holes (202) in a bolt mode.

4. The wear resistant four-point contact ball roller bearing of claim 1 wherein: middle level gyro wheel (300) is including rotating wheel (301), fixed mounting has inboard collar (302) on the inside wall of rotation wheel (301), install inboard roller (303) on the ring body of inboard collar (302), four roller grooves (306) that are the equidistance and distribute are all seted up with lower terminal surface to the up end of rotation wheel (301), the position fixed mounting that leans on the upper end of the body inner wall of roller groove (306) has mounting pad (307), the top of mounting pad (307) is provided with annular (308), the up end bolted connection of mounting pad (307) has outside collar (305), roller groove (306) internally mounted has outside roller (304).

5. The wear resistant four-point contact ball roller bearing of claim 4 wherein: the outer mounting ring (305) is mounted inside the annular groove (308).

6. The wear resistant four-point contact ball roller bearing of claim 4 wherein: the outer rollers (304) are movably connected with the upper side wall and the lower side wall of the annular fixed disc (201).

7. The wear resistant four-point contact ball roller bearing of claim 4 wherein: the middle layer roller (300) is rotatably connected with the mounting shaft body (100) through the inner side roller (303).

8. The wear resistant four-point contact ball roller bearing of claim 1 wherein: the mounting shaft body (100), the outer side fixing disc (200) and the middle layer roller (300) are all made of metal steel.