CN217002729U - Low-torque driving shaft bearing sealing ring - Google Patents

Abstract

The utility model discloses a low-torque drive shaft bearing seal ring, which comprises a bearing seal ring body, wherein a plastic outer ring is arranged on the outer side of the bearing seal ring body, an arc-shaped groove is formed in the upper surface of the plastic outer ring, a plastic inner ring is fixedly bonded on the outer side of the plastic outer ring, a stress hole and an oblique groove are formed in the upper surface of the plastic inner ring in a penetrating mode, the oblique groove is formed in the outer side of the plastic outer ring, a V-shaped cavity is formed in the outer side of the plastic outer ring, and one side of the plastic outer ring is connected with a dustproof inner lip strip in a clamping mode; the metal matrix skeleton, its built-in installation is inside the plastic outer lane, and the outside veneer of plastic outer lane is connected with rubber wire net, the outside bonding of plastic outer lane is fixed with the main contact lip. This low moment of torsion drive shaft bearing seal circle, the sealed design that is provided with new construction has changed the length of radial main lip on original seal structure, has increased the elasticity of radial main lip, and the contact angle of axial dustproof lip is increaseed simultaneously to the power of holding tightly of the axle that has suitably reduced.

Description

Low-torque driving shaft bearing sealing ring

Technical Field

The utility model relates to the technical field of bearing sealing rings, in particular to a bearing sealing ring of a low-torque driving shaft.

Background

The bearing sealing ring is an annular cover composed of one or more parts, is fixed on one ring or gasket of the bearing and contacts with the other ring or gasket or forms a narrow labyrinth gap to prevent the leakage of lubricating oil and the invasion of foreign matters. The bearing dustproof sealing ring is used for preventing dust and lubricating grease from leaking, and is of a unique sharp lip-shaped structure and low friction coefficient. The sealing ring can prevent external dust from entering the system, and meanwhile, the abrasion of the equipment is reduced. The basic function of the dust ring is to prevent external contaminants from entering the sealing system.

The normal operational environment of drive shaft bearing has only been considered to the original seal structure of bearing seal circle, the sealed design is also followed the sealed angle of axial and radial many lips contact, but the bearing moment of torsion is not considered to the bearing seal circle, moment indicates that the effort makes the object round axis of rotation or fulcrum pivoted trend in physics, moment, power produces the physical quantity of pivoted action to the object, can divide into the moment of power counter shaft and the moment of force counter point, can cause the outside of sealing washer to cause the deformation condition easily, and the junction formula structure as an organic whole of bearing seal circle and dustproof interior lip strip, the bearing seal circle junction is more single, can cause the sealing washer to take place deformation or broken condition in connecting the equipment process.

Aiming at the problems, innovative design is urgently needed on the basis of the original bearing sealing ring structure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a low-torque driving shaft bearing sealing ring, and aims to solve the problems that the bearing sealing ring does not consider the bearing torque, a sealing structure only considers the normal working environment of a driving shaft bearing, the joint of the bearing sealing ring and a dustproof inner lip strip is of an integrated structure, the joint of the bearing sealing ring is single, and the sealing ring is deformed or broken in the connecting and assembling process.

In order to achieve the purpose, the utility model provides the following technical scheme: including the bearing seal circle body, the outside of its bearing seal circle body is provided with the plastic outer lane, and the arc wall has been seted up to plastic outer lane upper surface, the outside bonding of plastic outer lane is fixed with the plastic inner circle, and the upper surface of plastic inner circle runs through and has seted up the stress hole, still includes: the oblique groove is formed in the outer side of the plastic outer ring, a V-shaped cavity is formed in the outer side of the plastic outer ring, and one side of the plastic outer ring is connected with the dustproof inner lip strip in a clamping mode; the metal matrix framework is internally installed inside the plastic outer ring, the outer side of the plastic outer ring is connected with a rubber steel wire mesh in a gluing mode, and a main contact lip is fixedly bonded to the outer side of the plastic outer ring; the slot, its outside of seting up at lip strip in preventing dust, and the draw-in groove has been seted up in the outside of lip strip in preventing dust.

Preferably, the width of the arc-shaped groove is one third of the width of the bearing sealing ring body, the bearing sealing ring body and the plastic inner ring are mutually attached, the width of the plastic inner ring is half of the width of the plastic outer ring, and the structural strength of the device is improved through the bearing sealing ring body and the plastic inner ring.

Preferably, the stress holes are circularly distributed on the outer side of the plastic inner ring, the plastic inner ring and the plastic outer ring are symmetrically distributed about the central line of the bearing seal ring body, the structural strength of the plastic inner ring is increased through the stress holes, and the bearing seal ring is prevented from deforming.

Preferably, the angle of main contact lip is 45 degrees, and main contact lip passes through slot connection with dustproof interior lip strip to the whole L style of calligraphy structure that is of dustproof interior lip strip, utilizes dustproof interior lip strip to increase the anti friction dynamics of bearing seal circle, influences the stability of bearing seal circle operation.

Preferably, rubber wire net and main contact lip hot pressing formula structure as an organic whole, and the surface of rubber wire net is less than the surface area of main contact lip, increases the anti friction dynamics in surface through rubber wire net, avoids the main contact lip to take place the deformation condition at the friction in-process.

Preferably, the width of draw-in groove is unanimous with the plastic outer lane width, and draw-in groove and plastic outer lane are parallel to each other to the material of plastic outer lane and dustproof interior lip strip is the nitrile rubber, increases the anti friction dynamics of junction through the plastic outer lane, promotes plastic outer lane positioning stability.

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

the low-torque driving shaft bearing sealing ring is provided with a new structure, the sealing design changes the length of a radial main lip on the original sealing structure, the elasticity of the radial main lip is increased, the appropriate holding force of a reduced shaft is properly reduced, the contact angle of an axial dust-proof lip is increased, the friction force between the axial lip and a water retaining ring is reduced, the sealing ring works in a low-torque state for a long time, and the effects of energy conservation and emission reduction are achieved. The novel sealing structure adopts the combination of the metal retainer ring and the rubber sealing ring, and the inner ring and the outer ring of the bearing do not need to be grooved, so that the production process is simplified, and the production cost is reduced;

this low moment of torsion drive shaft bearing seal circle, be provided with slot and metal matrix skeleton, utilize the metal matrix skeleton to fill the inside to the plastic outer lane, increase the inside structural strength in plastic outer lane, avoid the plastic outer lane to take place the deformation condition at the rotation in-process, ensure the stability of plastic outer lane at the operation in-process, utilize the slot to carry out the block location to plastic outer lane and dustproof interior lip strip, utilize the slot to carry out the location processing in the outside of dustproof interior lip strip, avoid dustproof interior lip strip to take place the deformation condition of rocking in the assembling process.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic side sectional view of the plastic outer ring according to the present invention;

FIG. 3 is a schematic view of the internal structure of the plastic outer ring according to the present invention;

FIG. 4 is a schematic view of a partial three-dimensional structure of the plastic outer ring according to the present invention;

fig. 5 is a schematic partial three-dimensional structure of the dustproof inner lip strip of the present invention.

In the figure: 1. a bearing seal ring body; 2. an arc-shaped slot; 3. a plastic outer ring; 4. a plastic inner ring; 5. a stress hole; 6. an oblique groove; 7. a V-shaped cavity; 8. a dust-proof inner lip strip; 9. a metal matrix skeleton; 10. a primary contact lip; 11. rubber steel wire mesh; 12. inserting slots; 13. a clamping groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: low moment of torsion drive shaft bearing seal circle, including bearing seal circle body 1, its bearing seal circle body 1's the outside is provided with plastic outer lane 3, and the arc wall 2 has been seted up to 3 upper surfaces of plastic outer lane, the width of arc wall 2 is the 1 width third of bearing seal circle body, and bearing seal circle body 1 is laminated for each other with plastic inner circle 4, and the width of plastic inner circle 4 is half for 3 width of plastic outer lane, the outside bonding of plastic outer lane 3 is fixed with plastic inner circle 4, and the upper surface of plastic inner circle 4 runs through and has seted up stress hole 5, stress hole 5 is the outside of circular distribution at plastic inner circle 4, and plastic inner circle 4 and plastic outer lane 3 are about 1 central line symmetric distribution of bearing seal circle body, still include:

the oblique groove 6 is formed in the outer side of the plastic outer ring 3, a V-shaped cavity 7 is formed in the outer side of the plastic outer ring 3, and one side of the plastic outer ring 3 is connected with a dustproof inner lip strip 8 in a clamping mode;

the metal matrix framework 9 is internally installed inside the plastic outer ring 3, the outer side of the plastic outer ring 3 is connected with a rubber steel wire mesh 11 in a gluing mode, the rubber steel wire mesh 11 and the main contact lip 10 are combined into an integral structure in a hot pressing mode, and the surface of the rubber steel wire mesh 11 is smaller than the surface area of the main contact lip 10; a main contact lip 10 is fixedly bonded on the outer side of the plastic outer ring 3, the angle of the main contact lip 10 is 45 degrees, the main contact lip 10 is connected with the dustproof inner lip strip 8 through a slot 12, and the dustproof inner lip strip 8 is integrally of an L-shaped structure;

the slot 12 is arranged on the outer side of the dustproof inner lip strip 8, the clamping groove 13 is arranged on the outer side of the dustproof inner lip strip 8, the width of the clamping groove 13 is consistent with that of the plastic outer ring 3, the clamping groove 13 is parallel to the plastic outer ring 3, and the plastic outer ring 3 and the dustproof inner lip strip 8 are made of nitrile rubber.

The working principle is as follows: when the low-torque drive shaft bearing seal ring is used, according to the figure 1, the device is firstly placed at a position where work is needed, an operator carries out heating treatment on the outer side of the rubber steel wire mesh 11, so that the rubber steel wire mesh 11 is attached to the outer side of the main contact lip 10, the structural strength of the outer side of the main contact lip 10 is increased, the operator then attaches the plastic outer ring 3 and the dustproof inner lip strip 8 to each other, so that the clamping groove 13 in the outer side of the dustproof inner lip strip 8 is attached to and connected with the plastic outer ring 3, meanwhile, the plastic outer ring 3 is inserted into the slot 12 through the main contact lip 10 in the outer side, and the dustproof inner lip strip 8 and the plastic outer ring 3 are assembled;

make up into plastic outer lane 3 with plastic outer lane 3 and dustproof interior lip strip 8 afterwards, make plastic outer lane 3 and plastic inner circle 4 carry out the heating connection, make the outside at antifriction bearing of plastic inner circle 4 nested fixation, make the outside of main contact lip 10 and bearing laminate and be connected, 4 outside structural strength of plastic inner circle increase through stress hole 5, operating personnel paints the inside at arc wall 2 with the butter, increase the lubricated degree in antifriction bearing and the 1 outside of bearing seal body, increase the contact angle of axial dustproof lip, reduce the frictional force of axial lip and water retaining ring, make the sealing washer work under the state of low moment of torsion for a long time.

Those not described in detail in this specification are well within the skill of the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. Low moment of torsion drive shaft bearing seal circle, including bearing seal circle body (1), the outside of its bearing seal circle body (1) is provided with plastic outer lane (3), and arc wall (2) have been seted up to plastic outer lane (3) upper surface, the outside bonding of plastic outer lane (3) is fixed with plastic inner circle (4), and the upper surface of plastic inner circle (4) runs through and has seted up stress hole (5), its characterized in that: further comprising:

the dustproof plastic outer ring comprises an oblique groove (6) which is formed in the outer side of a plastic outer ring (3), a V-shaped cavity (7) is formed in the outer side of the plastic outer ring (3), and a dustproof inner lip strip (8) is connected to one side of the plastic outer ring (3) in a clamping mode;

the metal matrix framework (9) is arranged in the plastic outer ring (3) in a built-in mode, the outer side of the plastic outer ring (3) is connected with a rubber steel wire mesh (11) in a gluing mode, and a main contact lip (10) is fixedly bonded to the outer side of the plastic outer ring (3);

the slot (12) is arranged at the outer side of the dustproof inner lip strip (8), and the clamping groove (13) is arranged at the outer side of the dustproof inner lip strip (8).

2. The low torque driveshaft bearing seal ring according to claim 1, wherein: the width of the arc-shaped groove (2) is one third of the width of the bearing sealing ring body (1), the bearing sealing ring body (1) and the plastic inner ring (4) are mutually attached, and the width of the plastic inner ring (4) is half of the width of the plastic outer ring (3).

3. The low torque driveshaft bearing seal ring according to claim 1, wherein: the stress holes (5) are circularly distributed on the outer side of the plastic inner ring (4), and the plastic inner ring (4) and the plastic outer ring (3) are symmetrically distributed about the central line of the bearing seal ring body (1).

4. The low torque driveshaft bearing seal ring according to claim 1, wherein: the angle of main contact lip (10) is 45 degrees, and main contact lip (10) is connected through slot (12) with interior lip strip (8) of preventing dust to lip strip (8) wholly is "L" style of calligraphy structure in preventing dust.

5. The low torque driveshaft bearing seal ring according to claim 1, wherein: rubber steel wire net (11) and main contact lip (10) hot pressing formula structure as an organic whole, and the surface of rubber steel wire net (11) is less than the surface area of main contact lip (10).

6. The low torque driveshaft bearing seal ring according to claim 1, wherein: the width of the clamping groove (13) is consistent with that of the plastic outer ring (3), the clamping groove (13) is parallel to the plastic outer ring (3), and the plastic outer ring (3) and the dustproof inner lip strip (8) are made of nitrile rubber.

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