Dustproof bearing ring of multi-layer composite sealing structure

Abstract

The utility model relates to the technical field of dustproof bearing rings, and discloses a dustproof bearing ring with a multi-layer composite sealing structure, which solves the problem that the dustproof bearing ring is single in structure and does not have a multi-layer sealing structure in the using process, and comprises an upper hard sealing ring, a lower hard sealing ring is arranged under the upper hard sealing ring, and a sealing ring is arranged under the lower hard sealing ring. The outer diameter, the inner diameter and the thickness of the upper hard sealing ring are the same as those of the lower hard sealing ring, the upper hard sealing ring and the lower hard sealing ring are both made of hard materials which can be particularly made of engineering plastics or metal, and an annular elastic ring is fixedly installed between the upper hard sealing ring and the lower hard sealing ring. The annular elastic ring is made of an elastic rubber material, specifically nitrile rubber or fluororubber; according to the dustproof bearing ring disclosed by the utility model, the dustproof bearing ring has a multi-layer sealing structure in the use process, so that the dustproof bearing ring can achieve a better sealing effect, and better practicability can be conveniently achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to dustproof bearing ring technical field, concretely is a dustproof bearing ring of multilayer composite sealing structure. BACKGROUND

[0002] Bearing is an important spare part in contemporary mechanical equipment, its main function is supporting mechanical rotary body, reducing its friction coefficient in the movement process, and ensuring its rotation precision, dustproof bearing ring is the key part for blocking external pollutants from entering the raceway in bearing, usually integrated in bearing ring or as independent sealing structure exists, and the dustproof bearing ring in the process of using, single structure does not have multilayer sealing structure, lead to its unable to achieve better sealing effect, thereby not convenient to achieve better practicality. UTILITARY MODEL CONTENTS

[0003] In view of above situation, in order to overcome the defects of prior art, the utility model provides a dustproof bearing ring of multilayer composite sealing structure, effectively solve the dustproof bearing ring in the process of using, single structure does not have multilayer sealing structure, lead to its unable to achieve better sealing effect, thereby not convenient to achieve better practicality problem.

[0004] To achieve the above object, the utility model provides the following technical scheme: a dustproof bearing ring of multilayer composite sealing structure, including upper hard sealing ring, the lower hard sealing ring is arranged below the upper hard sealing ring, and the outer diameter, the inner diameter and the thickness of the upper hard sealing ring and the lower hard sealing ring are all same, the upper hard sealing ring and the lower hard sealing ring are all made of hard material, specifically can adopt engineering plastics or metal, the annular elastic ring is fixedly installed between the upper hard sealing ring and the lower hard sealing ring, and the annular elastic ring is made of elastic rubber material, specifically can adopt nitrile rubber or fluorine rubber.

[0005] Preferably, the top of the upper hard sealing ring and the bottom of the lower hard sealing ring are uniformly provided with mounting grooves, and the number of mounting grooves on the top of the upper hard sealing ring and the bottom of the lower hard sealing ring is twelve, the inside of the mounting groove is provided with a rolling block, the outside of the rolling block extends to the outside of the mounting groove, the shaft rod is fixedly penetrated and installed in the inside of the rolling block, the inner wall of the mounting groove is symmetrically provided with a shaft hole, and the both ends of the shaft rod are rotatably installed in the inside of the shaft hole.

[0006] Preferably, the bottom of the upper hard sealing ring is fixedly provided with a movable ring, the top of the lower hard sealing ring is fixedly provided with a ring sleeve, and the movable ring and the ring sleeve are located inside the annular elastic ring, the bottom end of the movable ring is slidably arranged inside the ring sleeve, a plurality of installation holes are uniformly arranged at the bottom end of the movable ring, the number of the installation holes is twelve, a spring is fixedly arranged at the top end of the installation hole, the bottom of the spring extends below the movable ring, a circular block is fixedly arranged at the bottom of the spring, and the circular block is fixedly arranged at the bottom end of the ring sleeve.

[0007] Preferably, the bottom end of the movable ring is uniformly provided with a positioning sliding block, and the outer side of the ring sleeve is uniformly provided with a positioning sliding groove, and the positioning sliding block is slidably arranged in the positioning sliding groove.

[0008] Compared with the prior art, the utility model has the advantages that:

[0009] 1) In the work, through the mutual action of the upper hard sealing ring, the lower hard sealing ring and the annular elastic ring, the dustproof bearing ring has a multi-layer sealing structure in the use process, which can achieve better sealing effect and better practicality.

[0010] 2) In the work, through the mutual action of the positioning sliding block and the positioning sliding groove, the movable ring can slide in the ring sleeve to achieve better stability, thereby ensuring the stability of the overall structure of the dustproof bearing ring. BRIEF DESCRIPTION OF DRAWINGS

[0011] The accompanying drawings are included to provide a further understanding of the utility model, constitute a part of the specification, and are used together with the embodiments of the utility model to explain the utility model, and do not constitute a limitation on the utility model.

[0012] In the drawings:

[0013] Figure 1 It is a structure schematic view of the utility model of a multi-layer composite sealing structure dustproof bearing ring;

[0014] Figure 2 It is a bottom structure schematic view of the utility model; Figure 1

[0015] Figure 3 It is a structure schematic view of the upper hard sealing ring of the utility model;

[0016] Figure 4 It is a structure schematic view of the rolling block of the utility model;

[0017] Figure 5 ​The utility model discloses a movable ring structure schematic diagram.

[0018] Figure 6 The utility model discloses a ring sleeve structure schematic diagram.

[0019] In the drawing: 101, upper hard sealing ring, 102, lower hard sealing ring, 103, annular elastic ring, 104, mounting groove, 105, rolling block, 106, shaft rod, 107, shaft hole, 108, movable ring, 109, ring sleeve, 1010, mounting hole, 1011, spring, 1012, circular block, 1013, positioning sliding block, 1014, positioning sliding slot. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0021] Embodiment one, by Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 and Figure 6 The utility model relates to a dustproof bearing ring of multilayer composite sealing structure, including upper hard sealing ring 101, the lower hard sealing ring 102 of the positive below of upper hard sealing ring 101 is provided with, and the outer diameter, inner diameter and thickness of upper hard sealing ring 101 and lower hard sealing ring 102 are all same, upper hard sealing ring 101 and lower hard sealing ring 102 all are made of hard material, specifically can adopt engineering plastics or metal, annular elastic ring 103 is fixedly installed between upper hard sealing ring 101 and lower hard sealing ring 102, and annular elastic ring 103 is made of elastic rubber material, specifically can adopt nitrile rubber or fluorine rubber;

[0022] The top of upper hard sealing ring 101 and the bottom of lower hard sealing ring 102 are evenly provided with mounting groove 104, and the number of mounting groove 104 on the top of upper hard sealing ring 101 and the number of mounting groove 104 on the bottom of lower hard sealing ring 102 are both twelve, the inside of mounting groove 104 is provided with rolling block 105, and the outside of rolling block 105 extends to the outside of mounting groove 104, the inside of rolling block 105 is fixedly penetrated and is provided with shaft rod 106, the inner wall of mounting groove 104 is symmetrically provided with shaft hole 107, and the both ends of shaft rod 106 are rotatably installed in the inside of shaft hole 107;

[0023] The bottom of the upper hard sealing ring 101 is fixedly installed with a movable ring 108, the top of the lower hard sealing ring 102 is fixedly installed with an annular sleeve 109, and the movable ring 108 and the annular sleeve 109 are located inside the annular elastic ring 103, the bottom end of the movable ring 108 is slidingly installed inside the annular sleeve 109, a plurality of installation holes 1010 are uniformly arranged in the bottom end of the movable ring 108, the number of the installation holes 1010 is twelve, a spring 1011 is fixedly installed in the inside top end of the installation hole 1010, the bottom of the spring 1011 extends below the movable ring 108, a circular block 1012 is fixedly installed at the bottom of the spring 1011, and the circular block 1012 is fixedly installed at the inside bottom end of the annular sleeve 109, a plurality of positioning sliding blocks 1013 are fixedly installed on the outside bottom end of the movable ring 108, a plurality of positioning sliding grooves 1014 are uniformly and penetratingly arranged on the outside of the annular sleeve 109, the positioning sliding blocks 1013 slidingly penetrate and are installed in the inside of the positioning sliding grooves 1014, and the side, away from the movable ring 108, of the positioning sliding block 1013 is vertically aligned with the outer cylinder wall of the annular sleeve 109.

[0024] In use, the mutual action of the upper hard sealing ring 101, the lower hard sealing ring 102 and the annular elastic ring 103 enables the dustproof bearing ring to have a multi-layer sealing structure in use, so that better sealing effect can be achieved, thereby facilitating better practicality, and the mutual action of the positioning sliding block 1013 and the positioning sliding groove 1014 enables the movable ring 108 to slide in the inside of the annular sleeve 109 to facilitate better stability, thereby ensuring the stability of the overall structure of the dustproof bearing ring.

[0025] Working principle: when working, the upper hard sealing ring 101 is pressed downward to push the movable ring 108 to slide downward in the inside of the annular sleeve 109, the movable ring 108 drives the positioning sliding block 1013 to slide downward in the inside of the positioning sliding groove 1014, so that better stability of the movable ring 108 in movement can be ensured, at the same time, the movable ring 108 moves downward to extrude the spring 1011, so that the spring 1011 is elastically deformed, at the same time, the upper hard sealing ring 101 moves downward to extrude the annular elastic ring 103, so that the annular elastic ring 103 is elastically deformed, the deformation of the annular elastic ring 103 improves the sealing tightness through elastic compensation, in addition, in use, the rolling block 105, the shaft rod 106 and the shaft hole 107 are arranged, so that the rolling block 105 can roll in the inside of the installation groove 104, external plane friction is converted into rolling friction, wear is reduced and service life is prolonged, so that the dustproof bearing ring has a multi-layer sealing structure in use, so that better sealing effect can be achieved, thereby facilitating better practicality.

Claims

1. A dust-proof bearing ring of a multi-layer composite seal structure comprising an upper hard seal ring (101), characterized in that: The upper hard sealing ring (101) is provided with a lower hard sealing ring (102) below, and the outer diameter, inner diameter and thickness of the upper hard sealing ring (101) and the lower hard sealing ring (102) are the same.

2. A dust-proof bearing race of a multi-layer composite seal structure according to claim 1, characterized in that: The top of the upper hard sealing ring (101) and the bottom of the lower hard sealing ring (102) are uniformly provided with mounting grooves (104), and the number of mounting grooves (104) on the top of the upper hard sealing ring (101) and the bottom of the lower hard sealing ring (102) is twelve, the inside of the mounting groove (104) is provided with a rolling block (105), and the outside of the rolling block (105) extends to the outside of the mounting groove (104), the inside of the rolling block (105) is fixedly penetrated with a shaft rod (106), and the inner wall of the mounting groove (104) is symmetrically provided with a shaft hole (107), and both ends of the shaft rod (106) are rotatably installed in the inside of the shaft hole (107).

3. A dust-proof bearing race of a multi-layer composite seal structure according to claim 1, characterized in that: The bottom of the upper hard sealing ring (101) is fixedly installed with a movable ring (108), and the top of the lower hard sealing ring (102) is fixedly installed with a ring sleeve (109), and the movable ring (108) and the ring sleeve (109) are located in the inside of the annular elastic ring (103), the bottom end of the movable ring (108) is slidably installed in the inside of the ring sleeve (109), the inside of the bottom end of the movable ring (108) is uniformly provided with a mounting hole (1010), and the number of the mounting hole (1010) is twelve, the inside of the mounting hole (1010) is fixedly installed with a spring (1011) at the top, and the bottom of the spring (1011) extends below the movable ring (108), the bottom of the spring (1011) is fixedly installed with a circular block (1012), and the circular block (1012) is fixedly installed in the inside bottom end of the ring sleeve (109).

4. A dust-proof bearing race of a multi-layer composite seal structure according to claim 3, characterized in that: The bottom outside of the movable ring (108) is uniformly fixedly installed with a positioning sliding block (1013), the outside of the ring sleeve (109) is uniformly penetrated with a positioning sliding groove (1014), and the positioning sliding block (1013) is slidably penetrated and installed in the inside of the positioning sliding groove (1014), and the side of the positioning sliding block (1013) away from the movable ring (108) is vertically aligned with the outer cylinder wall of the ring sleeve (109).

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