CN209164388U - A kind of motor bearings structure - Google Patents

Abstract

The utility model discloses a kind of motor bearings structures, including inner ring and main shaft, ball is provided on the outside of the inner ring, and the inside of raceway is set to above ball, and raceway is opened in the inside of outer ring, the inner front side of the outer ring offers card slot, and the inside of card slot is equipped with fixture block, and fixture block is fixed on the lower section side of sealing ring, the installed in front of the ball has holder, and holder is internally provided with connecting key, and the inside of connecting key offers through-hole, limited clamp dog is run through in the inside of the through-hole, and confinement block is fixed on the front side of lower retainer, the main shaft runs through into the inside of inner ring, and fixed block is provided with below main shaft, and the lower section side of fixed block is equipped with screw.The motor bearings structure, the installation between bearing and electric machine main shaft is more close, and more convenient when disassembly, and the sealing performance of the bearing is preferable, will not occur the case where unlubricated grease inside filled cavity after long-term use.

Description

A kind of motor bearings structure

Technical field

The utility model relates to technical field of bearings, specially a kind of motor bearings structure.

Background technique

The basis that bearing is rotated as mechanical equipment is one of contemporary mechanical equipment important part, main function It is the coefficient of friction for reducing mechanical equipment just in rotational movement process, and guarantees its rotating accuracy.

Existing motor bearings is mostly directly to be installed together the main shaft of bearing and motor interference fit, will be electric to reach The purpose that the main shaft and bearing of machine are fixed together, it is very inconvenient when needing replacing bearing, therefore we devise one Kind motor bearings structure, to solve the above problems.

Utility model content

The purpose of this utility model is to provide a kind of motor bearings structures, mentioned above in the background art existing to solve Some motor bearings are mostly directly to be installed together the main shaft of bearing and motor interference fit, reaching the main shaft of motor and The purpose that bearing is fixed together, very inconvenient problem when needing replacing bearing.

To achieve the above object, the utility model provides the following technical solutions: a kind of motor bearings structure, including inner ring and Main shaft is provided with ball on the outside of the inner ring, and is set to the inside of raceway above ball, and raceway is opened in outer ring Inside, the inner front side of the outer ring offers card slot, and the inside of card slot is equipped with fixture block, and fixture block is fixed on sealing The lower section side of circle, the installed in front of the ball have a holder, and holder is internally provided with connecting key, and even The inside for connecing key offers through-hole, and limited clamp dog is run through in the inside of the through-hole, and confinement block is fixed on the front side of lower retainer, The main shaft runs through into the inside of inner ring, and fixed block is provided with below main shaft, and the lower section side of fixed block is equipped with Screw is provided with filled cavity at the upper side of the inner ring.

Preferably, the equal angular inside for being opened in outer ring of the card slot, and the number of card slot and the number of fixture block are equal.

Preferably, the sealing ring engages installation with inner ring and outer ring, and sealing ring is nitrile rubber material.

Preferably, the confinement block includes the first elastic slice and the second elastic slice, and the first elastic slice and the second elastic slice are both secured to The front side of lower retainer, and the first elastic slice is located at the right side of the second elastic slice.

Preferably, the fixed block is L shape, and fixed block is symmetrical arranged about main shaft, and fixed block is provided with 4 It is a.

Preferably, the lubricating grease filled inside the filled cavity is lithium saponify, and inside filled cavity lithium saponify loading For the 20-30% of filled cavity.

Compared with prior art, the utility model has the beneficial effects that the motor bearings structure, bearing and electric machine main shaft it Between installation it is more close, and disassembly when it is more convenient, the sealing performance of the bearing is preferable, will not be after long-term use There is the case where unlubricated grease inside filled cavity:

1, the through-hole on lower retainer inside the first elastic slice and the second elastic slice and holder of fixation, which matches, to incite somebody to action Lower retainer, holder and ball three are fixedly installed togather, and can limit the distance between ball always, make Spacing of the bearing after long-term use between internal ball remains unchanged；

2, engaging of the sealing ring with inner ring and outer ring has achieved the purpose that sealing ring is fixed on the Bearing inner again by first, The cooperation of card slot and fixture block can again by sealing ring installation on the bearing, dual fixation ensure that sealing ring and the bearing it Between installation tautness.

Detailed description of the invention

Fig. 1 is the utility model schematic view of the front view；

Fig. 2 is the utility model diagrammatic side-view cross-sectional structural schematic diagram；

Fig. 3 is the utility model holder structural schematic diagram；

Fig. 4 is retainer structural schematic diagram under the utility model；

Fig. 5 is the utility model confinement block and lower retainer mounting structure schematic diagram.

In figure: 1, inner ring；2, ball；3, raceway；4, outer ring；5, card slot；6, sealing ring；7, holder；8, connecting key； 9, confinement block；901, the first elastic slice；902, the second elastic slice；10, through-hole；11, lower retainer；12, fixture block；13, main shaft；14, solid Determine block；15, screw；16, filled cavity.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-5 is please referred to, the utility model provides a kind of technical solution: a kind of motor bearings structure, including inner ring 1, rolling Pearl 2, raceway 3, outer ring 4, card slot 5, sealing ring 6, holder 7, connecting key 8, confinement block 9, through-hole 10, lower retainer 11, card Block 12, main shaft 13, fixed block 14, screw 15 and filled cavity 16, the outside of inner ring 1 is provided with ball 2, and the top of ball 2 is set It is placed in the inside of raceway 3, and raceway 3 is opened in the inside of outer ring 4, the inner front side of outer ring 4 offers card slot 5, and card slot 5 Inside fixture block 12 is installed, and fixture block 12 is fixed on the lower section side of sealing ring 6, and the installed in front of ball 2 has upper holding Frame 7, and holder 7 is internally provided with connecting key 8, and the inside of connecting key 8 offers through-hole 10, the inside of through-hole 10 Through limited clamp dog 9, and confinement block 9 is fixed on the front side of lower retainer 11, and main shaft 13 runs through into the inside of inner ring 1, and main shaft 13 lower section is provided with fixed block 14, and the lower section side of fixed block 14 is equipped with screw 15, the upper side setting of inner ring 1 There is filled cavity 16；

The equal angular inside for being opened in outer ring 4 of card slot 5, and the number of card slot 5 and the number of fixture block 12 are equal, angularly It is equal with number that multiple card slots 5 of 4 two sides of outer ring and fixture block 12 are installed together, sealing ring 6 to be fixed；

Sealing ring 6 and inner ring 1 and outer ring 4 engage installation, and sealing ring 6 is nitrile rubber material, engaging installation so that Sealing ring 6 can be stable be mounted between inner ring 1 and outer ring 4, nitrile rubber material allow sealing ring 6 it is stable will in It is sealed up between circle 1 and outer ring 4；

Confinement block 9 includes the first elastic slice 901 and the second elastic slice 902, and the first elastic slice 901 and the second elastic slice 902 are fixed In the front side of lower retainer 11, and the first elastic slice 901 is located at the right side of the second elastic slice 902, the first elastic slice 901 and the second elastic slice 902 match and holder 7 and lower retainer 11 can be fixedly installed togather, and ensure that holder 7 and lower retainer The tightness installed between 11；

Fixed block 14 is L shape, and fixed block 14 is symmetrical arranged about main shaft 13, and fixed block 14 is provided with 4, L shape allows fixed block 14 that main shaft 13 and inner ring 1 are fixedly installed togather with arranged symmetrically；

The lubricating grease filled inside filled cavity 16 is lithium saponify, and the loading of 16 inside lithium saponify of filled cavity is filled cavity 16 20-30%, the heat sinking function that lithium saponify has makes the bearing that can radiate when in use, so that bearing can With operation stable always, 20-30% is lubricated lithium saponify to the bearing to the greatest extent, and is not in lithium The case where base rouge is extruded the bearing because of the rolling of ball 2.

Working principle: according to Fig. 1-2, the main shaft 13 of the bearing and motor is fixed when using the motor bearings structure When being installed together, first by the bearing holder (housing, cover) on the main shaft 13 for holding hole successfully in advance, then pass through screw 15 for 4 fixed blocks 14 are fixedly installed togather the inner ring 1 of the bearing and main shaft 13, and the mounting means relative to traditional interference fit is more steady Gu and can be disassembled screw 15 when replacing bearing, it then can be very easily by the bearing from motor It is disassembled on the outside of main shaft 13, to be replaced, the 20- that is filled inside the filled cavity 16 between the bearing inner race 1 and outer ring 4 The lithium saponify of 30% amount can be lubricated and dissipate between ball 2, inner ring 1 and outer ring 4 when the main shaft 13 of motor rotates Heat, ensure that motor main shaft 13 can be stable rotation, the sealing ring 6 of nitrile rubber material can be by 1 He of bearing inner race It is isolated from the outside world and comes between outer ring 4, prevent the Bearing inner and then dust, and then influence the running accuracy of the bearing, seal The dual fixation of circle 6 is so that sealing ring 6 will not fall off from the bearing when bearing rotary；

According to Fig. 1 and 3-5, pass through the first elastic slice 901 of lower 11 front side of retainer between holder 7 and lower retainer 11 It is fastened togather with the second elastic slice 902 with the through-hole 10 inside holder 7, the spacing between ball 2 is always maintained at In a fixed numbers, it ensure that the bearing will not contact with each other between ball 2 when rotation, it is possible to reduce ball 2 The rate of wear extends the service life of the bearing.

Technical solution provided by the utility model embodiment is described in detail above, it is used herein specifically A example is expounded the principle and embodiment of the utility model embodiment, and the explanation of above embodiments is only applicable to help Assistant solves the principle of the utility model embodiment；At the same time, for those skilled in the art is implemented according to the utility model Example, there will be changes in terms of specific embodiments and scope of application, in conclusion the content of the present specification should not be construed as Limitations of the present invention.

Claims (6)

1. a kind of motor bearings structure, including inner ring (1) and main shaft (13), it is characterised in that: the outside of the inner ring (1) is arranged Have ball (2), and be set to the inside of raceway (3) above ball (2), and raceway (3) is opened in the inside of outer ring (4), The inner front side of the outer ring (4) offers card slot (5), and the inside of card slot (5) is equipped with fixture block (12), and fixture block (12) It is fixed on the lower section side of sealing ring (6), the installed in front of the ball (2) has holder (7), and holder (7) It is internally provided with connecting key (8), and the inside of connecting key (8) offers through-hole (10), the inside of the through-hole (10) is run through Limited clamp dog (9), and confinement block (9) is fixed on the front side of lower retainer (11), the main shaft (13) is run through into the interior of inner ring (1) Portion, and fixed block (14) are provided with below main shaft (13), and the lower section side of fixed block (14) is equipped with screw (15), institute It states and is provided with filled cavity (16) at the upper side of inner ring (1).

2. a kind of motor bearings structure according to claim 1, it is characterised in that: the card slot (5) is equal angular to be opened up In the inside of outer ring (4), and the number of card slot (5) and the number of fixture block (12) are equal.

3. a kind of motor bearings structure according to claim 1, it is characterised in that: the sealing ring (6) and inner ring (1) and Outer ring (4) engages installation, and sealing ring (6) is nitrile rubber material.

4. a kind of motor bearings structure according to claim 1, it is characterised in that: the confinement block (9) includes the first bullet Piece (901) and the second elastic slice (902), and before the first elastic slice (901) and the second elastic slice (902) are both secured to lower retainer (11) Side, and the first elastic slice (901) is located at the right side of the second elastic slice (902).

5. a kind of motor bearings structure according to claim 1, it is characterised in that: the fixed block (14) is L shape, and Fixed block (14) is symmetrical arranged about main shaft (13), and fixed block (14) is provided with 4.

6. a kind of motor bearings structure according to claim 1, it is characterised in that: filled inside the filled cavity (16) Lubricating grease is lithium saponify, and the loading of the internal lithium saponify of filled cavity (16) is the 20-30% of filled cavity (16).