CN217029668U

CN217029668U - Magnetic suction type high-sealing dustproof bearing

Info

Publication number: CN217029668U
Application number: CN202123192584.1U
Authority: CN
Inventors: 朱江锋
Original assignee: Hangzhou Zhuo'ao Technology Co ltd
Current assignee: Hangzhou Zhuo'ao Technology Co ltd
Priority date: 2021-12-19
Filing date: 2021-12-19
Publication date: 2022-07-22
Anticipated expiration: 2031-12-19

Abstract

A magnetic suction type high-sealing dustproof bearing relates to the field of rolling bearings and comprises a bearing outer ring and a bearing inner ring, wherein a transmission shaft is arranged in the bearing inner ring, the transmission shaft and the bearing inner ring are in transition fit, the utility model realizes the connection between an end cover and the bearing outer ring by adopting a magnetic suction type mode, a magnetic suction type guide groove is arranged, a butt suction block is fixedly arranged at the rear side of the end cover corresponding to the magnetic suction type guide groove, the shape of the butt suction block is consistent with that of the magnetic suction type guide groove, the guide and stabilization effects can be achieved, a sealing ring is arranged between the bearing outer ring and the end cover, the sealing ring can play a dustproof role in the circumferential direction and prevent oil or dust from invading into the bearing through a gap, a quick-disassembly mechanism is arranged in the bearing, the connection between a limiting clamping block and the butt suction block can be quickly disconnected, the disassembly and the assembly are convenient, and the device can ensure high sealing performance, the magnetic attraction type method can realize quick assembly and disassembly and is not limited by narrow operation space.

Description

Magnetic suction type high-sealing dustproof bearing

Technical Field

The utility model relates to the field of rolling bearings, in particular to a magnetic suction type high-sealing dustproof bearing.

Background

A rolling bearing is a precise mechanical element that reduces friction loss by changing sliding friction between a running shaft and a shaft seat into rolling friction. The rolling bearing generally comprises four parts, namely an inner ring, an outer ring, a rolling body and a retainer, wherein the inner ring is used for being matched with a shaft and rotating together with the shaft; the outer ring is matched with the bearing seat to play a supporting role; the rolling bodies are uniformly distributed between the inner ring and the outer ring by virtue of the retainer, and the shape, size and number of the rolling bodies directly influence the service performance and service life of the rolling bearing; the retainer can enable the rolling bodies to be uniformly distributed and guide the rolling bodies to rotate to play a lubricating role.

In order to keep the interior of the bearing clean, two dustproof end covers are often arranged at two ends of the bearing, so that dust invasion can be reduced, but the traditional dustproof cover is poor in sealing performance due to the installation mode, and the dustproof cover is limited on the outer ring of the bearing through a clamp in the traditional dustproof cover, so that the dustproof cover is very complex to assemble and disassemble and the operation space is small.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a magnetic high-sealing dustproof bearing to solve the problems in the background technology.

The technical problem to be solved by the utility model is realized by adopting the following technical scheme:

a magnetic suction type high-sealing dustproof bearing comprises a bearing outer ring and a bearing inner ring, wherein a transmission shaft is arranged in the bearing inner ring, the transmission shaft is in transition fit with the bearing inner ring, eight balls are arranged between the bearing inner ring and the bearing outer ring in a rolling manner, a retainer is arranged between the eight balls, six magnetic suction type guide grooves are uniformly formed in the front side surface and the rear side surface of the bearing outer ring around the circle center, the structures in the magnetic suction type guide grooves are consistent, a magnetic suction block is arranged at one end of each magnetic suction type guide groove, built-in spaces are arranged on the upper side and the lower side of each magnetic suction type guide groove, a limiting fixture block is rotatably arranged in each built-in space, a torsion spring is arranged between each limiting fixture block and the side wall of each built-in space, each limiting fixture block extends into each magnetic suction type guide groove, end covers are arranged on the front side and the rear side surfaces of the bearing outer ring, and a sealing ring is arranged between each end cover and the bearing outer ring, the end cover medial side is equipped with the perforating hole, the transmission shaft runs through the perforating hole, the terminal surface of each the end cover evenly is equipped with six butts around the centre of a circle and inhales the piece, the butt inhale the piece with the formula guide slot is inhaled to magnetism and is corresponded the setting, be equipped with quick detach mechanism in the butt inhales the piece.

Beneficially, each butt suction block is provided with two clamping grooves, the shape of each clamping groove is consistent with that of the limiting clamping block, the limiting clamping block abuts against the clamping groove formed in the butt suction block, and the limiting clamping block and the clamping grooves can play a role in preventing the end cover from loosening.

Beneficially, each the butt is inhaled and is equipped with quick detach mechanism in the piece, quick detach mechanism is including setting up the inside slip space of piece is inhaled to the butt, it is equipped with the minor axis to rotate in the slip space, the one end of minor axis is equipped with the screw thread, and the other end is equipped with little band pulley, six pass through between the minor axis little band pulley and the transmission of built-in connecting band, wherein the downside the minor axis is extended to outside in the space outward, the downside the minor axis can manual rotation, demolishs when needs, manual rotation downside the minor axis, through the transmission of little band pulley and connecting band, make all the minor axis homoenergetic rotates.

Advantageously, a threaded slider is slidably arranged in each sliding space, the threaded slider is in threaded connection with a threaded end of the short shaft, two through grooves are formed in the positions, corresponding to the clamping grooves, of the abutting suction blocks, an ejection block is slidably arranged in each through groove, a connecting rod is hinged between the ejection block and the threaded slider, the ejection block abuts against the limiting clamping block, when the short shaft rotates in the forward direction, the threaded slider slides in the forward direction, the ejection blocks on the two sides are ejected out through the connecting rod, the ejection blocks can eject the limiting clamping block out of the clamping grooves towards the two sides, and after the limiting clamping block is ejected out, the end cover can be directly detached.

Beneficially, the shape of formula guide slot is a regular hexagon structure is inhaled to the magnetism, the butt inhale the shape of piece be a regular hexagon structure, the butt inhale the piece with formula guide slot butt is inhaled to magnetism, because the formula guide slot is inhaled to magnetism with the butt is inhaled the shape of piece unanimously, and owing to be the hexagon structure, the butt inhale the piece with it is more to inhale the contact surface between the formula guide slot, can guarantee in the course of the work the end cover with connection between the bearing inner race is reliable, is difficult to appear becoming flexible.

Advantageously, the clearance between the drive shaft and the through hole is one millimeter, so that the intrusion of dust into the bearing can be reduced without affecting the rotational efficiency of the drive shaft.

Beneficially, the abutting suction block is a metal block, the abutting suction block is abutted with the magnetic suction block, and the magnitude of the magnetic attraction force between each set of the abutting suction block and the magnetic suction block is ten newtons.

The utility model has the advantages and positive effects that:

the magnetic attraction type connection device is characterized in that the connection between the end cover and the bearing outer ring is realized by adopting a magnetic attraction type mode, the magnetic attraction type guide groove is arranged, the butt attraction block is fixedly arranged on the rear side of the end cover and corresponds to the magnetic attraction type guide groove, the shape of the butt attraction block is consistent with that of the magnetic attraction type guide groove, the guide and stabilization effects can be achieved, the sealing ring is arranged between the bearing outer ring and the end cover, the sealing ring can play a dustproof effect in the circumferential direction, oil or dust is prevented from invading into the bearing through a gap, the quick-release mechanism is arranged in the magnetic attraction type connection device, the connection between the limiting clamping block and the butt attraction block can be quickly disconnected, the disassembly and the assembly are convenient, and the magnetic attraction type connection device can realize quick disassembly and assembly without being limited by narrow operation space under the condition of ensuring high sealing performance.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of an overall full-section front view structure of a magnetic high-sealing dustproof bearing according to the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 taken along the line A-A;

FIG. 3 is an enlarged view of a portion of FIG. 2 at B according to the present invention.

The scores in the figures are as follows: 11. an outer race of the bearing; 12. a bearing inner race; 13. a drive shaft; 14. a ball bearing; 15. a holder; 16. an end cap; 17. a through hole; 18. a seal ring; 19. a magnetic attraction type guide groove; 20. A magnetic suction block; 21. limiting the clamping block; 22. a built-in space; 23. abutting against the suction block; 24. a sliding space; 25. A short axis; 26. a small belt pulley; 27. a threaded slider; 28. ejecting a block; 29. a connecting rod.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

The utility model will now be described in detail with reference to fig. 1-3, wherein for ease of description the orientations described hereinafter are defined as follows: the up, down, left, right, front and rear directions described below correspond to the front, back, left, right, top and bottom directions of the view direction of fig. 1, fig. 1 is a front view of the apparatus of the present invention, and the directions shown in fig. 1 correspond to the front, back, left, right, top and bottom directions of the apparatus of the present invention.

The embodiments of the utility model will be described in further detail below with reference to the accompanying drawings:

referring to fig. 1-3, an embodiment of the present invention is shown: a magnetic suction type high-sealing dustproof bearing comprises a bearing outer ring 11 and a bearing inner ring 12, wherein a transmission shaft 13 is arranged in the bearing inner ring 12, the transmission shaft 13 is in transition fit with the bearing inner ring 12, eight balls 14 are arranged between the bearing inner ring 12 and the bearing outer ring 11 in a rolling manner, a retainer 15 is arranged between the eight balls 14, six magnetic suction type guide grooves 19 are uniformly arranged on the front side surface and the rear side surface of the bearing outer ring 11 around the circle center, the structures in the magnetic suction type guide grooves 19 are consistent, one ends of the magnetic suction type guide grooves 19 are provided with magnetic suction blocks 20, built-in spaces 22 are arranged on the upper side and the lower side of the magnetic suction type guide grooves 19, a limiting clamping block 21 is rotatably arranged in the built-in spaces 22, a torsion spring is arranged between the limiting clamping block 21 and the side wall of the built-in spaces 22, the limiting clamping block 21 extends into the magnetic suction type guide grooves 19, end covers 16 are arranged on the front side and the rear side of the bearing outer ring 11, the end cover 16 with be equipped with sealing washer 18 between the bearing inner race 11, the side is equipped with perforating hole 17 in the end cover 16, transmission shaft 13 runs through perforating hole 17, the terminal surface of each end cover 16 evenly is equipped with six butts around the centre of a circle and inhales piece 23, the butt inhale piece 23 with formula guide slot 19 corresponds the setting, be equipped with quick detach mechanism in the butt inhales piece 23.

In addition, in an embodiment, each butt suction block 23 is provided with two clamping grooves, the shape of each clamping groove is consistent with that of the limiting clamping block 21, the limiting clamping block 21 abuts against the clamping groove formed in the butt suction block 23, and the limiting clamping block 21 and the clamping grooves can play a role in preventing the end cover 16 from being loosened.

In addition, in an embodiment, each of the abutting suction blocks 23 is provided with a quick release mechanism, the quick release mechanism includes a sliding space 24 arranged inside the abutting suction block 23, a short shaft 25 is rotatably arranged in the sliding space 24, one end of the short shaft 25 is provided with a thread, the other end of the short shaft 25 is provided with a small pulley 26, six of the short shafts 25 are driven by the small pulley 26 and a built-in connecting belt, wherein the lowest short shaft 25 extends outwards into an outer space, the lowest short shaft 25 can be manually rotated, and when the dismounting is needed, the lowest short shaft 25 is manually rotated, and all of the short shafts 25 are correspondingly rotated through the transmission of the small pulley 26 and the connecting belt.

In addition, in an embodiment, a threaded slider 27 is slidably disposed in each sliding space 24, the threaded slider 27 is in threaded connection with a threaded end of the short shaft 25, two through grooves are disposed at positions of the abutting suction block 23 corresponding to the slots, an ejecting block 28 is slidably disposed in each through groove, a connecting rod 29 is hinged between the ejecting block 28 and the threaded slider 27, the ejecting block 28 abuts against the limiting block 21, when the short shaft 25 rotates forward, the threaded slider 27 slides forward, so that the ejecting blocks 28 on two sides are ejected out like two sides through the connecting rod 29, the ejecting block 28 can eject the limiting block 21 out of the slot towards two sides, and after the limiting block 21 is ejected, the end cap 16 can be directly removed.

In addition, in an embodiment, the shape of formula guide slot 19 is inhaled to magnetism is a regular hexagon structure, the shape that the piece 23 was inhaled to the butt is a regular hexagon structure, the butt inhale the piece 23 with formula guide slot 19 butt is inhaled to magnetism, because formula guide slot 19 is inhaled to magnetism with the butt shape that the piece 23 was inhaled is unanimous, and owing to be the hexagon structure, the butt inhale the piece 23 with it is more to inhale the contact surface between the formula guide slot 19, can guarantee in the course of the work end cover 16 with connection between the bearing inner race 11 is reliable, is difficult to appear becoming flexible.

In addition, in one embodiment, the size of the gap between the transmission shaft 13 and the through hole 17 is one millimeter, so that the dust can be prevented from entering the inside of the bearing under the condition of ensuring that the rotation efficiency of the transmission shaft 13 is not affected.

In addition, in one embodiment, the abutting absorption block 23 is a metal block, the abutting absorption block 23 abuts against the magnetic absorption block 20, and the magnitude of the magnetic attraction force between each set of the abutting absorption block 23 and the magnetic absorption block 20 is ten newtons.

In specific implementation, when the end cover 16 needs to be assembled and disassembled, firstly, the short shaft 25 at the lowest side is manually and correspondingly rotated, when the end cover 16 needs to be disassembled, the short shaft 25 at the lowest side is manually and positively rotated, all the short shafts 25 are positively rotated through the transmission of the small belt pulley 26 and the connecting belt, when the short shaft 25 is positively rotated, the threaded sliding block 27 is positively slid, so that the ejection blocks 28 at two sides are ejected out like two sides through the connecting rod 29, the ejection block 28 can eject the limiting clamping block 21 out of the clamping groove towards two sides, after the limiting clamping block 21 is ejected, the abutting suction block 23 is separated from the limiting clamping block 21, the end cover 16 can be directly disassembled, when in installation, the end cover 16 is opposite to the magnetic attraction type guide groove 19, because the magnetic attraction block 20 has magnetism, the abutting suction block 23 can be attracted by the magnetic attraction block 20 when being aligned to the magnetic type guide groove 19, and the abutting type guide groove 19 and the attraction type guide groove 23 are both in a regular hexagon structure, can accomplish the alignment and the fixed of end cover 16 fast, aim at the back when end cover 16, promote end cover 16 to bearing inner race 11 direction, the tip that the piece 23 was inhaled to the butt can at first back-off restriction fixture block 21, it is corresponding with the draw-in groove that the piece 23 was inhaled to the butt until restriction fixture block 21, restriction fixture block 21 can block into the draw-in groove under the effect of torsional spring this moment, because the structure of restriction fixture block 21 and draw-in groove, under the condition of not forward rotation minor axis 25, end cover 16 can be restricted.

It should be emphasized that the embodiments described herein are illustrative rather than restrictive, and thus the present invention is not limited to the embodiments described in the detailed description, but other embodiments derived from the technical solutions of the present invention by those skilled in the art are also within the scope of the present invention.

Claims

1. The utility model provides a formula high sealed dustproof bearing is inhaled to magnetism, includes bearing inner race (11) and bearing inner race (12), its characterized in that: the bearing comprises a bearing inner ring (12), a transmission shaft (13) is arranged in the bearing inner ring (12), the transmission shaft (13) is in transition fit with the bearing inner ring (12), eight balls (14) are arranged between the bearing inner ring (12) and the bearing outer ring (11) in a rolling manner, a retainer (15) is arranged between the eight balls (14), six magnetic attraction type guide grooves (19) are uniformly formed in the front side surface and the rear side surface of the bearing outer ring (11) around the circle center, the magnetic attraction type guide grooves (19) are consistent in structure, a magnetic attraction block (20) is arranged at one end of each magnetic attraction type guide groove (19), built-in spaces (22) are arranged on the upper side and the lower side surface of each magnetic attraction type guide groove (19), a limiting clamping block (21) is rotatably arranged in each built-in space (22), a torsion spring is arranged between each limiting clamping block (21) and the side wall of each built-in space (22), and each limiting clamping block (21) extends into each magnetic attraction type guide groove (19), both sides all are equipped with end cover (16) around bearing inner race (11), end cover (16) with be equipped with sealing washer (18) between bearing inner race (11), the side is equipped with perforating hole (17) in end cover (16), transmission shaft (13) run through perforating hole (17), the terminal surface of each end cover (16) evenly are equipped with six butts around the centre of a circle and inhale piece (23), the butt inhale piece (23) with magnetism is inhaled formula guide slot (19) and is corresponded the setting, be equipped with quick detach mechanism in butt inhale piece (23).

2. The magnetic high-seal dustproof bearing as claimed in claim 1, wherein: each piece (23) is inhaled to the butt all is equipped with two draw-in grooves, the shape of draw-in groove with the shape of restriction fixture block (21) is unanimous, restriction fixture block (21) with the butt is inhaled the draw-in groove butt that piece (23) set up.

3. The magnetic high-seal dustproof bearing as claimed in claim 2, wherein: each be equipped with quick detach mechanism in piece (23) is inhaled to the butt, quick detach mechanism is including setting up the inside slip space (24) of piece (23) is inhaled to the butt, it is equipped with minor axis (25) to rotate in slip space (24), the one end of minor axis (25) is equipped with the screw thread, and the other end is equipped with little band pulley (26), six pass through between minor axis (25) little band pulley (26) and built-in connecting band transmission, wherein the downside minor axis (25) outwards extend to in the outer space.

4. The magnetic high-seal dustproof bearing as claimed in claim 3, wherein: each sliding space (24) is internally provided with a threaded sliding block (27) in a sliding mode, the threaded sliding block (27) is in threaded connection with the threaded end of the short shaft (25), two through grooves are formed in the positions, corresponding to the clamping grooves, of the abutting suction blocks (23), an ejection block (28) is arranged in each through groove in a sliding mode, a connecting rod (29) is hinged between each ejection block (28) and the threaded sliding block (27), and the ejection blocks (28) abut against the limiting clamping blocks (21).

5. The magnetic high-sealing dustproof bearing as claimed in claim 1, wherein: the shape of formula guide slot (19) is inhaled to magnetism is a regular hexagon structure, the shape that piece (23) was inhaled to the butt is a regular hexagon structure, the butt inhale piece (23) with formula guide slot (19) butt is inhaled to magnetism.

6. The magnetic high-sealing dustproof bearing as claimed in claim 1, wherein: the size of the clearance between the transmission shaft (13) and the through hole (17) is one millimeter.

7. The magnetic high-seal dustproof bearing as claimed in claim 4, wherein: the butt is inhaled piece (23) and is the metal block, butt inhale piece (23) with inhale piece (20) butt and each group the butt inhale piece (23) with inhale the size of the magnetic attraction power between piece (20) for ten cattle.