CN212079951U

CN212079951U - Sealed ball bearing

Info

Publication number: CN212079951U
Application number: CN201922420779.3U
Authority: CN
Inventors: 杨功辉
Original assignee: Wuxi Baosheng Precision Bearing Manufacturing Co ltd
Current assignee: Wuxi Baosheng Precision Bearing Manufacturing Co ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-12-04
Anticipated expiration: 2029-12-30

Abstract

The utility model discloses a sealed ball bearing relates to ball bearing technical field, for the problem of adopting rigid connection between the bearing among the solution prior art and the bearing frame. The top of bearing frame is provided with the fixed orifices, the fixed screw is installed to the top of sealed cowling, the internally mounted of sealed cowling has the sealing washer, the internally mounted of bearing frame has first bearing, the internally mounted of first bearing has the connecting cylinder, the internally mounted of first bearing has the holder, the pivot is installed to one side of holder, the rotor is installed to the one end of pivot, the outside of first bearing is provided with the spring, the top of bearing frame is provided with the rubber circle, the inside of bearing frame and sealing washer all is provided with the fixed screw hole, the internally mounted of connecting cylinder has the screw rod, rotatory handle is installed to the top of screw rod, the rear of first bearing is provided with the second bearing, the inside of bearing frame is provided with reinforcing block.

Description

Sealed ball bearing

Technical Field

The utility model relates to a ball screw bearing technical field specifically is a sealed ball screw bearing.

Background

The ball screw is an ideal product for converting rotary motion into linear motion or converting linear motion into rotary motion, is the most commonly used transmission element on tool machinery and precision machinery, has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency.

The ball screw bearing is suitable for various purposes, provides a standardized product with various types, is widely applied to machine tools, has the characteristics of high precision, high rotating speed, no maintenance and suitability for various electric main shaft devices, but most of bearing seats and bearings on the market are in rigid connection and are directly attached together, and the centrifugal force generated under the rotating condition of the ball screw can enable the bearings and the bearing seats to bear overhigh pressure, so that the bearings and the bearing seats are easy to damage; therefore, the market is urgently in need of developing a sealed ball screw bearing to help people solve the existing problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a sealed ball bearing to adopt rigid connection's problem between the bearing that proposes in solving above-mentioned background art and the bearing frame.

In order to achieve the above object, the utility model provides a following technical scheme: a sealed ball screw bearing comprises a bearing seat and a sealing cover, wherein a fixing hole is arranged above the bearing seat, a fixing screw is arranged above the sealing cover, a sealing ring is arranged in the sealing cover, a first bearing is arranged in the bearing seat, a connecting cylinder is arranged in the first bearing, a retainer is arranged in the first bearing, a rotating shaft is arranged on one side of the retainer, a rotor is arranged at one end of the rotating shaft, a spring is arranged on the outer side of the first bearing, a rubber ring is arranged above the bearing seat, fixing screw holes are arranged in the bearing seat and the sealing ring, a screw rod is arranged in the connecting cylinder, a rotating handle is arranged above the screw rod, a second bearing is arranged behind the first bearing, the inside of bearing frame is provided with the reinforcement piece, the inside of connecting cylinder is provided with the screw hole.

Preferably, the bearing seat and the fixing hole are arranged into an integral structure, the fixing hole is provided with six, the bearing seat and the fixing screw hole are arranged into an integral structure, and the fixing screw hole is provided with six.

Preferably, the sealed cowling sets up structure as an organic whole with the fixed screw hole, the fixed screw passes through fixed screw hole fixed connection with the sealed cowling, the sealed cowling passes through fixed screw with the bearing frame and is connected, the inside of sealed cowling is provided with the draw-in groove, the sealed cowling passes through draw-in groove fixed connection with the sealing washer.

Preferably, the first bearing is in threaded connection with the connecting cylinder, a groove is formed in the outer side of the rotating shaft, the rotating shaft is rotationally connected with the retainer through the groove, the rotating shaft is connected with the rotor in a welded mode, and the rotor is provided with a plurality of parts.

Preferably, the first bearing is attached to the spring, the bearing seat and the reinforcing block are arranged into a whole, the spring is attached to the reinforcing block, the spring is provided with a plurality of pieces, the first bearing is attached to the second bearing, and the inner structure of the second bearing is the same as that of the first bearing.

Preferably, the rotary handle is connected with the screw rod in a welding mode, the threaded hole and the connecting cylinder are arranged into an integral structure, the screw rod is fixedly connected with the connecting cylinder through the threaded hole, and the rotary handle, the screw rod and the threaded hole are all provided with two parts.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses a setting through the spring, after the bearing frame was installed at ball screw's both ends, can firmly install ball screw in the inside of bearing through the connecting cylinder, when ball screw was rotated by motor drive, the inner circle of bearing rotates along with ball screw, the outer lane then by the inside of firmly fixing at the bearing frame, the outside and the spring laminating of outer lane, install the spring through the outer lane evenly distributed with the bearing, thereby it changes rigid connection into elastic connection to make through the spring between bearing and the bearing frame, make ball screw rotate the centrifugal force of any direction when can both obtain the buffering, thereby the bearing pressure of bearing and bearing frame has been reduced, the wearing and tearing of bearing and bearing frame have been reduced, ball screw bearing's use quality has been improved.

2. The utility model discloses a setting through the sealed cowling, can be with external dust through the sealed cowling, the oil stain is isolated, ball screw itself is exactly the instrument of high accuracy, need seal its inside bearing, just can be the efficiency of non-maintaining, through setting up a sealing washer in the inside of sealed cowling, can support the bearing, make the bearing firmly fix the inside at the bearing frame, fix the sealed cowling in one side of bearing frame through the set screw, make the sealed cowling wrap up the whole parcels of inner structure of bearing frame, with the coincidence of the cover end and the rubber circle of sealed cowling simultaneously, make the sealed cowling fasten the laminating more with the part of bearing frame contact, make the inside of bearing frame sealed better, make the bearing obtain more effectual sealing.

Drawings

Fig. 1 is an overall schematic view of a sealed ball screw bearing according to the present invention;

fig. 2 is a schematic view of an internal structure of a sealed ball screw bearing according to the present invention;

fig. 3 is a cross-sectional view of the side view of the sealed ball screw bearing of the present invention.

In the figure: 1. a bearing seat; 2. a fixing hole; 3. a sealing cover; 4. fixing screws; 5. a seal ring; 6. a connecting cylinder; 7. a first bearing; 8. a holder; 9. a rotating shaft; 10. a rotor; 11. a spring; 12. a rubber ring; 13. fixing screw holes; 14. rotating the handle; 15. a screw; 16. a second bearing; 17. a reinforcing block; 18. a threaded bore.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, the present invention provides an embodiment: a sealed ball screw bearing comprises a bearing seat 1 and a sealing cover 3, wherein a fixing hole 2 is formed above the bearing seat 1, a fixing screw 4 is arranged above the sealing cover 3, a sealing ring 5 is arranged inside the sealing cover 3, a first bearing 7 is arranged inside the bearing seat 1, a connecting cylinder 6 is arranged inside the first bearing 7, a retainer 8 is arranged inside the first bearing 7, a rotating shaft 9 is arranged on one side of the retainer 8, a rotor 10 is arranged at one end of the rotating shaft 9, a spring 11 is arranged outside the first bearing 7, a rubber ring 12 is arranged above the bearing seat 1, fixing screw holes 13 are formed inside the bearing seat 1 and the sealing ring 5, a screw rod 15 is arranged inside the connecting cylinder 6, a rotating handle 14 is arranged above the screw rod 15, a second bearing 16 is arranged behind the first bearing 7, and a reinforcing block 17 is arranged inside the bearing seat 1, the interior of the connector barrel 6 is provided with a threaded bore 18.

Further, bearing frame 1 sets up structure as an organic whole with fixed orifices 2, and fixed orifices 2 are provided with six, and bearing frame 1 sets up structure as an organic whole with fixed screw hole 13, and fixed screw hole 13 is provided with six, and bearing frame 1 adopts the high fierce stainless steel punching technology of integral type, improves the rigidity of bearing frame 1, makes the hardness of bearing frame 1 stronger, the precision is higher.

Further, the sealing cover 3 and the fixed screw hole 13 are arranged to be of an integral structure, the fixed screw 4 and the sealing cover 3 are fixedly connected through the fixed screw hole 13, the sealing cover 3 is connected with the bearing seat 1 through the fixed screw 4, the clamping groove is formed in the sealing cover 3, the sealing cover 3 and the sealing ring 5 are fixedly connected through the clamping groove, and the sealing cover 3 and the bearing seat 1 are machined and formed through a Germany machine tool, so that the sealing cover 3 and the bearing seat 1 are tightly jointed when combined.

Further, first bearing 7 and 6 threaded connection of connecting cylinder, the outside of pivot 9 is provided with the recess, and pivot 9 passes through the recess rotation with holder 8 to be connected, and pivot 9 and rotor 10 welded connection, rotor 10 are provided with a plurality of, adopt high strength, high rigidity, rotor 10 of high accuracy for the inner circle rotates the time beat heart rate more lower.

Further, first bearing 7 and the laminating of spring 11, bearing frame 1 and reinforcing block 17 set up structure as an organic whole, and spring 11 and reinforcing block 17 laminating, spring 11 are provided with a plurality of, and first bearing 7 and the laminating of second bearing 16, the inner structure of second bearing 16 is the same with the inner structure of first bearing 7, adopts memory high resistance spring 11, long service life, and the quality is protected and is hindered highly.

Further, rotatory handle 14 and screw rod 15 welded connection, screw hole 18 sets up structure as an organic whole with connecting cylinder 6, and screw rod 15 passes through screw hole 18 fixed connection with connecting cylinder 6, and rotatory handle 14, screw rod 15 and screw hole 18 all are provided with two, and the screw thread deepens the processing for screw rod 15 fastens more when combining with screw hole 18.

The working principle is as follows: when in use, after one end of the ball screw is connected with the upper motor, one end of the ball screw is simultaneously installed with the bearing seat 1, an object which needs to do linear motion is installed on the ball screw pair, when the motor rotates, the ball screw rotates, the motor, the ball screw and the ball screw pair are mutually kept balanced and stable through the bearing seat 1, one end of the ball screw is fixed in the connecting cylinder 6, the screw 15 moves towards the inside of the connecting cylinder 6 through rotating the rotating handle 14, so that the upper screw 15 and the lower screw 15 and the ball screw are mutually stressed, the ball screw can be firmly fixed in the connecting cylinder 6, the connecting cylinder 6 is respectively fixed on the first bearing 7 and the second bearing 16 through threads, the attachment degree of the thread area outside the connecting cylinder 6 and the thread area of the bearing is higher, and the connecting cylinder 6 can not fall off when rotating at high speed, the inner ring through the bearing rotates, make rotor 10 rotate, make rotor 10 can not squint when rotating through the inside slide of bearing and holder 8, the outer lane of bearing is laminated with the one end atress of spring 11, the other end and the reinforcement block 17 atress of spring 11 are laminated, with the outer lane evenly distributed spring 11 of bearing, make the centre of a circle of bearing can not be cheap, make the inner ring atress even when rotatory simultaneously, make bearing frame 1 atress part rigidity intensity higher through reinforcement block 17, through sealed cowling 3 with first bearing 7, second bearing 16 and spring 11 protection in the inside of bearing frame 1, make bearing frame 1 and bearing form an organic whole structure, the occupation to the space has been reduced, and sealed effect has been played to the whole structure.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a sealed ball bearing, includes bearing frame (1) and sealed cowling (3), its characterized in that: the bearing seat is characterized in that a fixing hole (2) is formed in the top of the bearing seat (1), a fixing screw (4) is installed on the top of the sealing cover (3), a sealing ring (5) is installed inside the sealing cover (3), a first bearing (7) is installed inside the bearing seat (1), a connecting cylinder (6) is installed inside the first bearing (7), a retainer (8) is installed inside the first bearing (7), a rotating shaft (9) is installed on one side of the retainer (8), a rotor (10) is installed at one end of the rotating shaft (9), a spring (11) is arranged on the outer side of the first bearing (7), a rubber ring (12) is arranged on the top of the bearing seat (1), a fixing screw hole (13) is formed in each of the bearing seat (1) and the sealing ring (5), and a screw rod (15) is installed inside the connecting cylinder (6), the rotary handle (14) is installed above the screw rod (15), the second bearing (16) is arranged behind the first bearing (7), the reinforcing block (17) is arranged inside the bearing seat (1), and the threaded hole (18) is formed inside the connecting cylinder (6).

2. The sealed ball screw bearing of claim 1, wherein: the bearing seat (1) and the fixing hole (2) are arranged into an integral structure, the fixing hole (2) is provided with six, the bearing seat (1) and the fixing screw hole (13) are arranged into an integral structure, and the fixing screw hole (13) is provided with six.

3. The sealed ball screw bearing of claim 1, wherein: sealed cowling (3) set up structure as an organic whole with fixed screw hole (13), fixed screw (4) pass through fixed screw hole (13) fixed connection with sealed cowling (3), sealed cowling (3) are connected through fixed screw (4) with bearing frame (1), the inside of sealed cowling (3) is provided with the draw-in groove, sealed cowling (3) are through draw-in groove fixed connection with sealing washer (5).

4. The sealed ball screw bearing of claim 1, wherein: first bearing (7) and connecting cylinder (6) threaded connection, the outside of pivot (9) is provided with the recess, pivot (9) are connected through the recess rotation with holder (8), pivot (9) and rotor (10) welded connection, rotor (10) are provided with a plurality of.

5. The sealed ball screw bearing of claim 1, wherein: first bearing (7) and spring (11) laminating, bearing frame (1) and reinforcing block (17) set up structure as an organic whole, spring (11) and reinforcing block (17) laminating, spring (11) are provided with a plurality of, first bearing (7) and second bearing (16) laminating, the inner structure of second bearing (16) is the same with the inner structure of first bearing (7).

6. The sealed ball screw bearing of claim 1, wherein: rotatory handle (14) and screw rod (15) welded connection, screw hole (18) set up structure as an organic whole with connecting cylinder (6), screw rod (15) pass through screw hole (18) fixed connection with connecting cylinder (6), rotatory handle (14), screw rod (15) and screw hole (18) all are provided with two.