CN212985797U

CN212985797U - Improved low-noise bearing

Info

Publication number: CN212985797U
Application number: CN202021529348.7U
Authority: CN
Inventors: 王丕琼
Original assignee: Guizhou Fangda Bearing Co ltd
Current assignee: Guizhou Fangda Bearing Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-04-16
Anticipated expiration: 2030-07-29

Abstract

The utility model discloses an improved generation low noise bearing, including the bearing inner race, bearing inner race outer lane fixedly connected with damping noise reduction layer, damping noise reduction layer outer lane is equipped with the ball spacing collar, and ball spacing collar external fixation has the vibration/noise reduction layer, and the vibration/noise reduction layer includes the snubber block, and the snubber block quantity is five, and space department between the snubber block is filled with the amortization cotton, and the vibration/noise reduction layer external connection has the bearing outer lane, the utility model discloses a set up the snubber block can reduce the vibration that the bearing produced when operating, reduce the noise that the bearing produced through amortization cotton, damping noise reduction layer of filling, so not only reduce the vibration that bearing spare part produced when operating, reduced the noise that the bearing sent from the root that the bearing produced, the noise reduction effect is good, carries out the lubricating oil to the bearing through the oil transportation hole on the ball shield that sets up, lubricating oil is introduced into the balls through the annular oil groove and the oil drain hole, and the balls are prevented from being dried during operation.

Description

Improved low-noise bearing

Technical Field

The utility model relates to a bearing field specifically is an improved generation low noise bearing.

Background

The bearing is an important part in the modern mechanical equipment, has the main functions of supporting a mechanical rotating body, reducing the friction coefficient in the movement process of the mechanical rotating body and ensuring that the rotation precision bearing is a part for supporting the shaft, is used for guiding the rotating movement of the shaft and bearing the load transmitted to a frame by the shaft, is widely used for a rotating shaft or a movable part of machinery and has better use effect.

With the pursuit of people for quiet comfort, the noise generated when the bearing works enters the sight of people. Bearing noise is an acoustic phenomenon generated by vibration and mutual collision of parts of a bearing during operation, elastic vibration and forced vibration of the parts of the bearing are called solid-borne noise, and air vibration caused by the solid-borne noise in an acoustic frequency range is noise of the bearing.

Most of low-noise bearings in the market are filled with some silencing materials to physically reduce noise, and although the noise generated by the bearing is reduced to a certain extent, the problem is not solved fundamentally, and the noise sound of the low-noise bearing is increased after the low-noise bearing is used for a long time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an improved generation low noise bearing to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides an improved generation low noise bearing, includes the bearing inner race, bearing inner race outer lane fixedly connected with damping noise reduction layer, damping noise reduction layer outer lane are equipped with the ball spacing collar, and ball spacing collar external fixation has the vibration/noise reduction layer, and the vibration/noise reduction layer includes the snubber block, and snubber block quantity is five, and space department fills there is the amortization cotton between the snubber block, and vibration/noise reduction layer external connection has the bearing inner lane.

As a further aspect of the present invention: the ball limiting ring is internally and fixedly provided with two balls, and the ball outside is provided with two ball retainers.

As a further aspect of the present invention: the outer portion of the ball limiting ring is fixedly connected with a bearing dustproof cover, an oil conveying hole is formed in the outer wall of the bearing dustproof cover, and an oil plug is arranged above the oil conveying hole.

As a further aspect of the present invention: the bearing dust cover is internally provided with an annular oil groove, an oil drain hole is formed in the annular oil groove, and a capillary tube is arranged in the oil drain hole.

As a further aspect of the present invention: the damping block is characterized in that a cushion block a is fixedly connected to the upper end of the middle of the inside of the damping block, the cushion block is fixedly connected to the top of the inner wall of the damping block, a fixing block is arranged at the lower end of the cushion block a, the fixing block is fixedly connected to the bottom of the inner wall of the damping block, and the cushion block a is fixedly connected with the fixing block through a spring a.

As a further aspect of the present invention: the fixed block left side is equipped with the telescopic link, and telescopic link fixed connection is in snubber block inner wall bottom, and telescopic link other end fixedly connected with cushion b, cushion b fixed connection are at snubber block inner wall left side top, and the telescopic link outside encircles and is connected with spring b.

As a further aspect of the present invention: and an antirust liquid protective layer is brushed on the outer ring of the bearing outer ring, and a resin layer is arranged inside the bearing outer ring.

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

1. the utility model discloses a snubber block that sets up can reduce the vibration that the bearing produced when the operation, and the noise that the layer of making an uproar reduces the bearing production is fallen through the amortization cotton of filling, damping, still reduces the vibration that bearing spare part produced when the operation like this when not only reducing the noise, has reduced the noise that the bearing sent on the root that produces from the bearing, and noise reduction effect is good.

2. The utility model discloses an oil transportation hole on the ball shield that sets up carries out lubricating oil to the bearing and adds, in making lubricating oil enter into the ball through annular oil groove and oil drain, has prevented that the ball is dry when the operation. The mode of adding lubricating oil avoids the problem that lubricating oil can be added only by disassembling bearing parts, so that the maintenance of the bearing is simpler and more convenient.

Drawings

Fig. 1 is a schematic structural diagram of an improved low-noise bearing outer ring.

Fig. 2 is a schematic structural view of an internal cross section of a bearing in an improved low noise bearing.

Fig. 3 is a schematic view of the interior of a ball dust cap in an improved low noise bearing.

Fig. 4 is a sectional structural view of a damper block in an improved low noise bearing.

Fig. 5 is a schematic structural view of a bearing outer ring in an improved low noise bearing.

In the figure: 1. a bearing outer race; 1-1, an antirust liquid protective layer; 1-2, a resin layer; 2. a damper block; 2-1, a cushion block a; 2-2, a spring a; 2-3, fixing blocks; 2-4, a telescopic rod; 2-5, spring b; 2-6, a cushion block b; 3. a ball bearing; 4. a ball retainer; 5. a ball limiting ring; 6. a damping noise reduction layer; 7. a bearing inner race; 8. a damping and noise reducing layer; 8-1, noise reduction cotton; 9. A ball dust cap; 10. an oil transfer hole; 10-1, oil plug; 10-2, an annular oil groove; 10-3, capillary; 10-4 parts of oil drain hole.

Detailed Description

The technical solution of the present patent will be described in further detail with reference to the following embodiments.

Referring to fig. 1-3, an improved low-noise bearing comprises a bearing inner ring 7, a damping noise reduction layer 6 is fixedly connected to an outer ring of the bearing inner ring 7, the damping noise reduction layer 6 is arranged to absorb noise generated during the operation of the bearing and vibration generated during the operation of the bearing, a ball limiting ring 5 is arranged on the outer ring of the damping noise reduction layer 6, a damping noise reduction layer 8 is fixed outside the ball limiting ring 5, the damping noise reduction layer 8 comprises damping blocks 2, the damping blocks 2 are five in number, the damping blocks 2 are double-arch-shaped, the ball limiting ring 5 can be supported by the double-arch, radial vibration generated during the operation of the balls is reduced by a damping device arranged inside the ball limiting ring 5, silencing cotton 8-1 is filled in gaps between the damping blocks 2, the outer part of the damping noise reduction layer 8 is connected with the bearing outer ring 1, and balls 3 are fixedly arranged in the ball limiting ring 5, the ball 3 is provided with two ball retainers 4 outside, the ball retainer 4 is fixedly connected with the bearing dustproof cover 9 outside, the outer wall of the bearing dustproof cover 9 is provided with an oil delivery hole 10, an oil plug 10-1 is arranged above the oil delivery hole 10, the bearing dust-proof cover 9 is internally provided with an annular oil groove 10-2, an oil drain hole 10-4 is arranged in the annular oil groove 10-2, a capillary tube 10-3 is arranged in the oil drain hole 10-4, the ball dust-proof cover 9 is arranged to prevent dust from entering balls, and lubricating oil can be added to the balls through the oil transmission hole 10, the annular oil groove 10-2 and the oil drain hole 10-4, the bearing is easy and convenient to maintain, and the capillary tube 10-3 is arranged for controlling the amount of lubricating oil entering the ball, so that waste caused by excessive amount of lubricating oil added at one time is prevented.

Referring to fig. 4-5, the upper end of the middle part inside the shock absorption block 2 is fixedly connected with a cushion block a2-1, the cushion block a2-1 is fixedly connected to the top of the inner wall of the shock absorption block 2, the lower end of the cushion block a2-1 is provided with a fixed block 2-3, the fixed block 2-3 is fixedly connected to the bottom of the inner wall of the shock absorption block 2, the cushion block a2-1 is fixedly connected with the fixed block 2-3 through a spring a2-2, the cushion block a2-1 and the fixed block 2-3 are arranged to absorb the extrusion vibration received by the middle part inside the shock absorption block 2, the left side of the fixed block 2-3 is provided with an expansion link 2-4, the expansion link 2-4 is fixedly connected to the bottom of the inner wall of the shock absorption block 2, the other end of the expansion link, the outer portion of the telescopic rod 2-4 is connected with a spring b2-5 in a surrounding mode, the telescopic rod 2-4 and the cushion block b2-6 are arranged to absorb extrusion vibration on two sides of the shock absorption block 2, an antirust liquid protective layer 1-1 is brushed on the outer ring of the bearing outer ring 1, a resin layer 1-2 is arranged inside the bearing outer ring 1, and the resin layer 1-2 is arranged to reduce extrusion force on the bearing outer ring 1 and prolong the service life of the bearing.

The utility model discloses a theory of operation is: the utility model discloses a noise that the bearing produced when the operation is reduced to the amortization cotton 8-1 that packs in damping layer 6, the vibration/noise reduction layer 8 of making an uproar that falls that set up. When the bearing operates, the ball limiting ring 5 and the balls can generate radial extrusion force, the arranged noise reduction damping layer 6 can reduce inward radial extrusion force, the arranged noise reduction layer 8 can reduce outward radial extrusion force, namely, when the radial extrusion force generated by the ball limiting ring 5 is firstly transmitted to the damping block 2, the cushion block a2-1, the spring a2-2 and the fixed block 2-3 which are arranged in the damping block 2 absorb the extrusion force received at the center of the damping block 2, the expansion rods 2-4, the cushion block b2-6 and the spring b2-5 which are arranged can absorb the extrusion force received at the two sides of the damping block 2, the design mode can ensure that the extrusion force received inside the damping block 2 is even, and the absorption effect on the radial extrusion force is better.

When the bearing ball is subjected to sample preservation of adding lubricating oil, only the oil plug 10-1 on the ball dust cover 9 needs to be opened, and the lubricating oil is injected into the annular oil groove 10-2 through the oil transmission hole 10, so that the bearing maintenance is simple and convenient.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present patent have been described in detail, the present patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present patent within the knowledge of those skilled in the art.

Claims

1. The utility model provides an improved generation low noise bearing, includes bearing inner race (7), its characterized in that, bearing inner race (7) outer lane fixedly connected with damping noise reduction layer (6), damping noise reduction layer (6) outer lane is equipped with ball spacing collar (5), ball spacing collar (5) external fixation has vibration/noise reduction layer (8), vibration/noise reduction layer (8) are including snubber block (2), snubber block (2) quantity is five, space department packs between snubber block (2) has amortization cotton (8-1), vibration/noise reduction layer (8) external connection has bearing outer lane (1).

2. The improved low-noise bearing as claimed in claim 1, wherein balls (3) are fixedly arranged in the ball retainer ring (5), ball holders (4) are arranged outside the balls (3), and the number of the ball holders (4) is two.

3. The improved low-noise bearing as claimed in claim 1, wherein a bearing dust cap (9) is fixedly connected to the outside of the ball retainer (5), an oil delivery hole (10) is formed in the outer wall of the bearing dust cap (9), and an oil plug (10-1) is arranged above the oil delivery hole (10).

4. An improved low-noise bearing according to claim 3, wherein the dustproof cover (9) is provided with an annular oil groove (10-2) inside, an oil drain hole (10-4) is formed in the annular oil groove (10-2), and a capillary (10-3) is formed in the oil drain hole (10-4).

5. The improved low-noise bearing as claimed in claim 1, wherein a cushion block a (2-1) is fixedly connected to the upper end of the middle inside the damping block (2), the cushion block a (2-1) is fixedly connected to the top of the inner wall of the damping block (2), a fixing block (2-3) is arranged at the lower end of the cushion block a (2-1), the fixing block (2-3) is fixedly connected to the bottom of the inner wall of the damping block (2), and the cushion block a (2-1) and the fixing block (2-3) are fixedly connected through a spring a (2-2).

6. The improved low-noise bearing as claimed in claim 5, wherein a telescopic rod (2-4) is arranged on the left side of the fixed block (2-3), the telescopic rod (2-4) is fixedly connected to the bottom of the inner wall of the damping block (2), a cushion block b (2-6) is fixedly connected to the other end of the telescopic rod (2-4), the cushion block b (2-6) is fixedly connected to the top of the left side of the inner wall of the damping block (2), and a spring b (2-5) is circumferentially connected to the outer portion of the telescopic rod (2-4).

7. The improved low-noise bearing according to claim 1, wherein the outer ring of the bearing outer ring (1) is brushed with a rust-proof liquid protective layer (1-1), and a resin layer (1-2) is arranged inside the bearing outer ring (1).