CN215100202U

CN215100202U - Heavy-duty HDPE efficient waterproof dustproof friction welding carrier roller

Info

Publication number: CN215100202U
Application number: CN202121024580.XU
Authority: CN
Inventors: 李高民
Original assignee: Shandong Keweiya Conveying Equipment Co ltd
Current assignee: Shandong Keweiya Conveying Equipment Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-12-10
Anticipated expiration: 2031-05-13

Abstract

The utility model discloses a heavy-duty HDPE high-efficiency waterproof dustproof friction welding carrier roller, which comprises a roller shaft, wherein the roller shaft is sleeved with a roller, bearing seats are respectively arranged between the two ends of the roller and the roller shaft, a bearing is arranged in each bearing seat, an inner sealing device positioned outside the bearing is arranged between each bearing seat and the roller shaft, and an outer sealing device is arranged outside each bearing seat; the outer sealing device comprises a sealing outer cover, a first sealing ring groove and a second sealing ring groove are arranged on the end surface of the sealing outer cover facing the bearing seat, a sealing convex ring in clearance fit with the first sealing ring groove is arranged on the bearing seat, and a waterproof sealing ring is arranged in the second sealing ring groove; when the carrier roller works, the inner sealing device and the outer sealing device form multiple sealing, the sealing convex ring is in clearance fit with the first sealing ring groove and is not in direct contact with the first sealing ring groove, the friction force is avoided, the overall friction coefficient of the carrier roller is reduced, and the energy consumption is reduced; the waterproof effect is good, the water spraying and soaking performances are excellent, and the friction force is not obviously increased.

Description

Heavy-duty HDPE efficient waterproof dustproof friction welding carrier roller

Technical Field

The utility model relates to a bearing roller sealing device especially relates to a high-efficient waterproof dustproof friction welding bearing roller of heavy load type HDPE.

Background

The rubber belt conveyor is a general series product, can be widely used in various industries such as metallurgy, mine, coal, ports, power stations, building materials, chemical industry, light industry, petroleum and the like, and belongs to a large number of products. The carrier roller is a device for supporting the conveying belt and materials borne by the conveying belt to ensure the stable operation of the conveying belt, has no substitution effect in equipment, has large consumption and belongs to a quick-wear part.

The quality of the carrier roller directly influences the normal use of the equipment. The quality of the sealing element for the carrier roller directly influences the service life of the carrier roller.

The structure of the existing carrier roller sealing element generally comprises an inner sealing ring, an outer sealing ring, a sealing disc, an inner retainer ring, an outer retainer ring, a V-shaped sealing ring, a cover cap and the like. Some consider the sealing effect, but increase the roller rotation resistance; some rollers reduce the rotation resistance of the rollers, but the sealing effect is not ideal; the existing carrier roller sealing element has more parts, brings inconvenience to production, assembly and maintenance, and increases the manufacturing cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a heavy-duty type HDPE high-efficient waterproof dustproof friction welding bearing roller that waterproof effect is good, drench and immersion performance is excellent and frictional force does not have and is showing the increase is provided.

In order to solve the technical problem, the technical scheme of the utility model is that: the heavy-duty HDPE efficient waterproof dustproof friction welding carrier roller comprises a roller shaft, wherein the roller shaft is sleeved with a roller, bearing seats are respectively arranged between two ends of the roller and the roller shaft, bearings are arranged in the bearing seats, an inner sealing device positioned outside the bearings is arranged between the bearing seats and the roller shaft, and an outer sealing device is arranged outside the bearing seats;

the outer sealing device comprises a sealing outer cover, the sealing outer cover faces a first sealing ring groove and a second sealing ring groove are formed in the end face of the bearing seat, a sealing convex ring in clearance fit with the first sealing ring groove is arranged on the bearing seat, and a waterproof sealing ring is arranged in the second sealing ring groove.

As a preferred technical scheme, one side of the waterproof sealing ring facing the bearing seat is provided with a waterproof brim extending obliquely outwards; the waterproof sealing ring is a rubber ring.

As a preferred technical scheme, the inner sealing device comprises an outer sealing element connected with the bearing seat and an inner sealing element connected with the roller shaft, the inner sealing element comprises a sealing cylinder sleeved with the roller shaft, a sealing ring seat extending outwards along the radial direction is arranged on the outer wall of the sealing cylinder, a plurality of annular inner sealing fixed teeth are arranged on two side surfaces of the sealing ring seat in an arrayed manner, a sealing cavity matched with the sealing ring seat and the inner sealing fixed teeth is arranged in the outer sealing element, the sealing ring seat and the inner sealing fixed teeth extend into the sealing cavity and are in clearance fit with the inner wall of the sealing cavity, inner sealing movable teeth extending to the positions between the inner sealing fixed teeth are arranged on the inner wall of the sealing cavity, and the inner sealing movable teeth and the inner sealing fixed teeth are also in clearance fit.

As a preferred technical scheme, the inner sealing fixed teeth on the two side surfaces of the sealing ring seat are consistent in number and are symmetrically arranged.

As a preferred technical scheme, a plurality of annular seal grooves are arranged on the end surface of the seal outer cover facing the outer seal member, and outer seal teeth in clearance fit with the seal grooves are arranged on the outer seal member.

As a preferred technical solution, the outer edge of the outer seal member is provided with an outwardly flared guide edge which is pressed against the bearing seat.

By adopting the technical scheme, the heavy-duty HDPE efficient waterproof dustproof friction welding carrier roller comprises a roller shaft, wherein the roller shaft is sleeved with a roller, bearing seats are respectively arranged between two ends of the roller and the roller shaft, a bearing is arranged in each bearing seat, an inner sealing device positioned on the outer side of each bearing is arranged between each bearing seat and the roller shaft, and an outer sealing device is arranged on the outer side of each bearing seat; the outer sealing device comprises a sealing outer cover, a first sealing ring groove and a second sealing ring groove are arranged on the end surface of the sealing outer cover facing the bearing seat, a sealing convex ring in clearance fit with the first sealing ring groove is arranged on the bearing seat, and a waterproof sealing ring is arranged in the second sealing ring groove; when the carrier roller works, the inner sealing device and the outer sealing device form multiple sealing, the sealing convex ring is in clearance fit with the first sealing ring groove and is not in direct contact with the first sealing ring groove, the friction force is avoided, the overall friction coefficient of the carrier roller is reduced, and the energy consumption is reduced; the waterproof effect is good, the water spraying and soaking performances are excellent, and the friction force is not obviously increased.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:

fig. 1 is a schematic structural diagram of an embodiment of the present invention;

in the figure: 11-a roll shaft; 12-a roller; 21-a bearing seat; 22-a bearing; 31-sealing the outer cover; 32-sealing convex ring; 33-waterproof sealing ring; 34-waterproof eaves; 41-an outer seal; 42-a sealed cylinder; 43-sealing ring seat; 44-inner seal fixed teeth; 45-inner sealing moving teeth; 46-outer seal teeth; 47-flared guide edge.

Detailed Description

The invention is further explained below with reference to the drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention have been described by way of illustration only. Needless to say, a person skilled in the art will recognize that the described embodiments can be modified in various different ways without departing from the spirit and scope of the invention. Accordingly, the drawings and description are illustrative in nature and not intended to limit the scope of the claims.

As shown in fig. 1, the heavy-duty HDPE high-efficiency waterproof dustproof friction welding carrier roller comprises a roller shaft 11, wherein a roller 12 is sleeved on the roller shaft 11, bearing seats 21 are respectively arranged between two ends of the roller 12 and the roller shaft 11, a bearing 22 is arranged in each bearing seat 21, an inner sealing device positioned on the outer side of each bearing 22 is arranged between each bearing seat 21 and the roller shaft 11, and an outer sealing device is arranged on the outer side of each bearing seat 21;

the outer sealing device comprises a sealing outer cover 31, a first sealing ring groove and a second sealing ring groove are formed in the end face, facing the bearing seat 21, of the sealing outer cover 31, a sealing convex ring 32 in clearance fit with the first sealing ring groove is arranged on the bearing seat 21, a waterproof sealing ring 33 is installed in the second sealing ring groove, and one side, facing the bearing seat 21, of the waterproof sealing ring 33 is provided with a waterproof eaves 34 extending outwards in an inclined mode; the waterproof sealing ring 33 is a rubber ring.

The inner sealing device comprises an outer sealing piece 41 connected with the bearing seat 21 and an inner sealing piece connected with the roller shaft 11, the inner sealing piece comprises a sealing cylinder 42 sleeved with the roller shaft 11, a sealing ring seat 43 extending outwards along the radial direction is arranged on the outer wall of the sealing cylinder 42, a plurality of annular inner sealing fixed teeth 44 are arranged on two side faces of the sealing ring seat 43 in an arrayed mode, a sealing cavity matched with the sealing ring seat 43 and the inner sealing fixed teeth 44 is arranged in the outer sealing piece 41, the sealing ring seat 43 and the inner sealing fixed teeth 44 extend into the sealing cavity and are in clearance fit with the inner wall of the sealing cavity, inner sealing movable teeth 45 extending to the positions between the inner sealing fixed teeth 44 are arranged on the inner wall of the sealing cavity, and clearance fit is also formed between the inner sealing movable teeth 45 and the inner sealing fixed teeth 44. The inner sealing fixed teeth 44 on the two side surfaces of the sealing ring seat 43 are consistent in number and are symmetrically arranged.

A plurality of annular sealing grooves are formed in the end face, facing the outer sealing element 41, of the sealing outer cover 31, and outer sealing teeth 46 in clearance fit with the sealing grooves are formed in the outer sealing element 41. The outer edge of the outer seal 41 is provided with a flared guide edge 47 which is pressed against the bearing seat 21.

The sealing ring seat 43 and the inner sealing fixed teeth 44 extend into the sealing cavity, the inner walls of the sealing cavity are in clearance fit, and the friction force of the carrier roller in the rotating process can be reduced through the clearance fit; the sealing groove is in clearance fit with the outer sealing teeth 46, and the friction force is small in the rotating process; the above design results in a reduced overall coefficient of friction.

The outer sealing element 41 and the inner sealing element are made of high-molecular polyethylene and glass fiber, so that the strength is high, the tensile strength is high, the abrasion is high, the friction coefficient is low, friction welding is realized, welding flux is avoided, the strength of the materials is not required to be weakened, and the welding effect is good.

When the sealing device works, the inner sealing device and the outer sealing device form multiple sealing, specifically, a first sealing ring groove and a second sealing ring groove are arranged on the sealing outer cover 31 of the outer sealing device, the first sealing ring groove is matched with the sealing convex ring 32 to form first heavy outer sealing, the second sealing ring groove is matched with the waterproof sealing ring 33 to form second heavy outer sealing, and outer sealing teeth 46 are arranged between a plurality of sealing grooves arranged on the sealing outer cover 31 and the outer sealing piece 41 and are matched with each other to form third heavy outer sealing; the inner seal and the outer seal 41 form a labyrinth multiple seal by mutually matching the inner seal fixed teeth 44 and the seal cavity. The setting of waterproof eaves 34 on waterproof sealing washer 33 can place outside water and dirt and enter into inside the bearing frame 21, and the inclined plane that waterproof eaves 34 extend from inside to outside slope can make the inside debris of bearing frame 21 lead out under the effect of the rotating force, and waterproof eaves 34 plays the effect of outside direction and inside shutoff.

Compared with the common structure, the technical scheme has the following advantages:

1. the adopted material has high tensile strength, does not rust and resists corrosion;

2. the abrasion is high, the friction coefficient is low, and the energy consumption is greatly reduced;

3. the welding flux is avoided, friction welding is realized, the bonding strength is high, and the welding flux is full fusion;

4. the weight is light, the weight is 1/3 made of iron, the energy consumption is greatly reduced, and the rotation resistance is low;

5. the waterproof effect is good, the water spraying and soaking performances are excellent, and the friction force is not obviously increased.

The basic principles, main features and advantages of the present invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. Heavy-duty type HDPE high-efficient waterproof dustproof friction welding bearing roller, including the roller, the cover is equipped with the roller on the roller, the both ends of roller with all install the bearing frame between the roller, install bearing, its characterized in that in the bearing frame: an inner sealing device positioned on the outer side of the bearing is arranged between the bearing seat and the roll shaft, and an outer sealing device is arranged on the outer side of the bearing seat;

2. The heavy-duty HDPE efficient waterproof dustproof friction welding carrier roller of claim 1, characterized in that: one side of the waterproof sealing ring facing the bearing seat is provided with a waterproof brim extending outwards in an inclined manner; the waterproof sealing ring is a rubber ring.

3. The heavy-duty HDPE efficient waterproof dustproof friction welding carrier roller of claim 1, characterized in that: the inner sealing device comprises an outer sealing element and an inner sealing element, the outer sealing element is connected with the bearing seat, the inner sealing element is connected with the roller shaft, the inner sealing element comprises a sealing barrel sleeved with the roller shaft, a sealing ring seat extending outwards along the radial direction is arranged on the outer wall of the sealing barrel, a plurality of annular inner sealing fixed teeth are arranged on two side faces of the sealing ring seat in an arrayed mode, a sealing cavity matched with the sealing ring seat and the inner sealing fixed teeth is formed in the outer sealing element, the sealing ring seat and the inner sealing fixed teeth extend into the sealing cavity and are in clearance fit with the inner wall of the sealing cavity, inner sealing movable teeth extending to the positions between the inner sealing fixed teeth are arranged on the inner wall of the sealing cavity, and the inner sealing movable teeth are also in clearance fit with the inner sealing fixed teeth.

4. The heavy-duty HDPE efficient waterproof dustproof friction welding carrier roller of claim 3, characterized in that: the inner sealing fixed teeth on the two side surfaces of the sealing ring seat are consistent in number and are symmetrically arranged.

5. The heavy-duty HDPE efficient waterproof dustproof friction welding carrier roller of claim 3, characterized in that: the sealing outer cover faces to the end face of the outer sealing piece, a plurality of annular sealing grooves are formed in the end face of the outer sealing piece, and outer sealing teeth in clearance fit with the sealing grooves are arranged on the outer sealing piece.

6. The heavy-duty HDPE efficient waterproof dustproof friction welding carrier roller of claim 3, characterized in that: and the outer edge of the outer sealing element is provided with an outward-expanding guide edge pressed on the bearing seat.