CN219198052U

CN219198052U - Belt pulley

Info

Publication number: CN219198052U
Application number: CN202320059560.9U
Authority: CN
Inventors: 王方永; 竺剑秋; 尹祖国; 叶剑; 周龙灏
Original assignee: Zhejiang Cenfit Machinery Co ltd
Current assignee: Zhejiang Cenfit Machinery Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-06-16
Anticipated expiration: 2033-01-09

Abstract

The utility model discloses a belt pulley, which comprises a pulley body, wherein the pulley body comprises a bearing part and a bearing part, a wedge groove is formed in the bearing part, a limiting convex ring is arranged on the outer side wall of the pulley body, the limiting convex ring is positioned between the bearing part and the bearing part, and the outer diameter of the limiting convex ring is larger than that of the bearing part. The belt pulley is meshed with the V-shaped belt through the V-shaped belt grooves, so that the whole transmission operation is stable and reliable, the transmission capacity is larger, the position of the V-shaped belt can be limited through the design of the limiting convex ring, the V-shaped belt is limited in the V-shaped belt grooves through the limiting convex ring, the V-shaped belt is effectively prevented from falling out of the V-shaped belt grooves, the whole operation is stable, and the operation safety performance is improved.

Description

Belt pulley

Technical Field

The utility model belongs to the technical field of belt pulleys, and particularly relates to a belt pulley.

Background

Pulleys are widely used in the transmission of various mechanical devices in the automotive, agricultural and light textile industries, and in the continuous development of transmission technology, transmission forms are increasingly diversified, including flat pulleys, V pulleys and V-ribbed pulleys. The flat belt wheel is too smooth, so that the friction force is insufficient, and the belt wheel has larger impact force. The V belt wheel has larger vibration force, and compared with a chain and a gear, the V belt wheel can run unstably, and the service life of the belt is easy to be shortened. The V-ribbed belt wheel gathers the advantages of the flexibility of the flat belt wheel and the high transmission power of the V-belt wheel, but after a period of use, the V-ribbed belt and the V-ribbed belt wheel are easy to slip or fall off, and have great potential safety hazards.

Disclosure of Invention

The utility model aims to provide a technical scheme of the belt pulley aiming at the defects existing in the prior art, the belt pulley is simple and reasonable in structural design and strong in practicability, the belt pulley is meshed with the multi-wedge belt through the wedge belt grooves, so that the whole transmission operation is stable and reliable, the transmission capacity is larger, the position of the wedge belt can be limited through the design of the limiting convex ring, the wedge belt is limited in the wedge belt grooves through the limiting convex ring, the wedge belt is effectively prevented from falling out from the wedge belt grooves, the whole operation is stable, and the operation safety performance is improved.

In order to solve the technical problems, the utility model adopts the following technical scheme:

a belt pulley comprises a pulley body, wherein the pulley body comprises a bearing part and a belt bearing part, and a wedge belt groove is formed in the belt bearing part; the belt pulley is meshed with the V-ribbed belt through the V-ribbed belt grooves, so that the contact area and the friction force between the belt pulley and the V-ribbed belt are large, the load is uniformly distributed, the transmission capacity is larger, the transmission vibration is small during the integral operation, the operation is stable, and the noise is low; the outer side wall of the wheel body is provided with a limiting convex ring, the limiting convex ring is positioned between the bearing belt part and the bearing part, and the outer diameter of the limiting convex ring is larger than that of the bearing belt part; the position of the wedge belt can be limited by the limiting convex ring, the wedge belt is limited in the wedge belt groove through the limiting convex ring, the wedge belt is effectively prevented from falling out of the wedge belt groove, and the whole operation is stable.

Further, the installation cavity has been seted up on the wheel body, the installation cavity includes along the first cavity that holds the area portion and set gradually in the area portion along accepting portion, second cavity and third cavity, the internal diameter of first cavity, second cavity and third cavity increases gradually and sets up in proper order, the design of a plurality of cavities and the design of increasing gradually of cooperation cavity internal diameter for the installation cavity forms a plurality of step faces, thereby makes things convenient for the installation location of other parts in the installation cavity, and the equipment between belt pulley and other parts of being convenient for is fixed.

Further, be provided with the annular that blocks in the second cavity, the annular that blocks's design can be convenient for seal ring's installation, effectively improves connection fastness and compactness between other parts and the belt pulley through seal ring's the sealed effect for whole transmission operation is more steady reliable.

Further, the end part of the second cavity, which is close to the first cavity, is provided with a sealing arc groove, the sealing arc groove can be matched with the installation between other parts and the belt pulley, and a sealing ring is arranged in the sealing arc groove, so that the connection tightness and reliability between the other parts and the belt pulley are improved.

Further, the side of spacing bulge loop towards carrying the area portion is the inclined plane, and structural design is ingenious reasonable, and the inclined plane reduces gradually by spacing bulge loop to carrying area portion direction external diameter, further ensures the spacing effect to the wedge area, effectively avoids the wedge area to appear breaking away from the phenomenon, improves the safety in utilization.

Further, both ends all are provided with the buffering chamfer around the wheel body, and the processing burr at belt pulley both ends can be got rid of in the design of buffering chamfer, makes things convenient for taking of belt pulley, improves the operational safety, also makes things convenient for the actual assembly of belt pulley simultaneously.

Further, be provided with the arc transition groove between spacing bulge loop and the portion of accepting, adopt the arc transition groove transition design between spacing bulge loop and the junction of portion of accepting, can reduce stress concentration phenomenon, strengthen the joint strength between spacing bulge loop and the portion of accepting, the arc transition groove can also play the assistance-localization real-time effect when the belt pulley is assembled simultaneously to more make things convenient for the actual equipment of belt pulley.

Further, the wedge belt grooves are provided with at least two wedge teeth, the wedge teeth are formed between every two adjacent wedge belt grooves, the top ends of the wedge teeth are arc-shaped, the plurality of wedge belt grooves are designed, the contact area between the wedge belt and the belt pulley can be ensured, the whole transmission operation is stable and reliable, the safety is improved, meanwhile, the end parts of the wedge teeth are designed into arc-shaped structures, the abrasion of the wedge teeth is reduced, and the service life is prolonged.

Further, the bearing part and the bearing belt part are of an integrated structure, and the design of the integrated structure can ensure the structural firmness and the structural strength of the whole belt pulley.

Due to the adoption of the technical scheme, the utility model has the following beneficial effects:

the belt pulley is meshed and driven by the wedge belt grooves and the multi-wedge belt, the contact area and the friction force between the belt pulley and the multi-wedge belt are large, the load distribution is uniform, the transmission capacity is large, the transmission vibration is small during the whole operation, the operation is stable, the noise is low, and when the multi-wedge belt is used for a period of time, the multi-wedge belt is easy to deviate from the wedge belt grooves due to abrasion, so that the position of the wedge belt can be limited by adopting the design of the limiting convex ring, the wedge belt is limited in the wedge belt grooves through the limiting convex ring, the wedge belt is effectively prevented from deviating from the wedge belt grooves, the slipping phenomenon of the wedge belt is avoided, the whole operation is stable, and the whole operation safety is improved.

Drawings

The utility model is further described below with reference to the accompanying drawings:

FIG. 1 is a schematic diagram of a pulley according to the present utility model;

FIG. 2 is a schematic view of the rear side structure of FIG. 1;

FIG. 3 is a schematic diagram of the position distribution structure of a clamping ring groove and a sealing arc groove in an installation cavity;

FIG. 4 is a schematic side view of the present utility model;

FIG. 5 is a left side view of FIG. 4;

FIG. 6 is a schematic view of the internal cross-sectional structure of the present utility model;

FIG. 7 is a schematic view of the structure of FIG. 6 at II in a partially enlarged manner;

fig. 8 is a schematic view of a partial enlarged structure at I in fig. 6.

In the figure: 1-wheel body; 2-a receiving part; 3-wedge teeth; 4-limiting convex rings; 5-a mounting cavity; 6-a first cavity; 7-a second cavity; 8-a third cavity; 9-embedding ring grooves; 10-sealing the arc groove; 11-inclined plane; 12-buffering chamfering; 13-arc transition grooves; 14-wedge grooved; 15-wedge teeth.

Detailed Description

As shown in fig. 1 to 8, the belt pulley according to the present utility model comprises a pulley body 1, wherein the pulley body 1 comprises a receiving portion 2 and a belt bearing portion 3, the belt bearing portion 3 is used for connection between the belt pulley and a belt, the receiving portion 2 and the belt bearing portion 3 are integrally formed, and the integrally formed structure can ensure self structural firmness and structural strength of the whole belt pulley. The bearing belt part 3 is provided with a wedge belt groove 14; the belt pulley is meshed with the V-ribbed belt through the V-ribbed belt grooves 14, so that the contact area and the friction force between the belt pulley and the V-ribbed belt are large, the load is uniformly distributed, the transmission capacity is larger, the transmission vibration is small during the integral operation, the operation is stable, and the noise is low; the outer side wall of the wheel body 1 is provided with a limiting convex ring 4, the limiting convex ring 4 is positioned between the bearing part 3 and the bearing part 2, and the outer diameter of the limiting convex ring 4 is larger than the outer diameter of the bearing part 3; the position of the wedge belt can be limited by the limiting convex ring 4, the wedge belt is limited in the wedge belt groove 14 through the limiting convex ring 4, the wedge belt is effectively prevented from falling out of the wedge belt groove 14, and the whole operation is stable.

The wheel body 1 is provided with the installation cavity 5, the installation cavity 5 comprises a first cavity 6, a second cavity 7 and a third cavity 8 which are sequentially arranged along the bearing part 2 towards the bearing part 3, the inner diameters of the first cavity 6, the second cavity 7 and the third cavity 8 are sequentially increased, the design of the cavities and the increasing design of the inner diameters of the cavities are matched, a plurality of step surfaces are formed in the installation cavity 5, so that other components are conveniently installed and positioned in the installation cavity 5, and the belt pulley and other components are conveniently assembled and fixed.

The second cavity 7 is internally provided with the clamping ring groove 9, the sealing ring groove 9 is designed to be convenient for the installation of the sealing ring, and the connection firmness and the tightness between other parts and the belt pulley are effectively improved through the sealing effect of the sealing ring, so that the whole transmission operation is more stable and reliable.

The end part of the second cavity 7, which is close to the first cavity 6, is provided with a sealing arc groove 10, the sealing arc groove 10 can be matched with the installation between other parts and the belt pulley, a sealing ring is arranged in the sealing arc groove 10, and the sealing ring is matched with the sealing ring, so that the connection tightness and reliability between the other parts and the belt pulley are further improved.

The side of spacing bulge loop 4 towards carrying area portion 3 is inclined plane 11, and structural design is ingenious reasonable, and inclined plane 11 reduces the setting gradually by spacing bulge loop 4 to carrying area portion 3 direction external diameter, further ensures the spacing effect to the wedge area, effectively avoids the wedge area to appear breaking away from the phenomenon, improves the safety in utilization.

The front and back both ends of wheel body 1 all are provided with buffering chamfer 12, and the processing burr at belt pulley both ends can be got rid of in the design of buffering chamfer 12, makes things convenient for taking of belt pulley, improves the operational safety, also makes things convenient for the actual assembly of belt pulley simultaneously.

An arc-shaped transition groove 13 is formed between the limiting convex ring 4 and the bearing part 2, the arc-shaped transition groove 13 is adopted to be in transition design between the connecting positions of the limiting convex ring 4 and the bearing part 2, so that stress concentration phenomenon can be reduced, the connection strength between the limiting convex ring 4 and the bearing part 2 is enhanced, and meanwhile, the arc-shaped transition groove 13 can also play an auxiliary positioning role in assembling of the belt pulley, so that the actual assembling of the belt pulley is more convenient.

The wedge groove 14 is provided with at least two, forms wedge tooth 15 between two adjacent wedge groove 14, and wedge tooth 15's top is circular-arc, designs a plurality of wedge groove 14, can ensure the area of contact between wedge area and the belt pulley for whole transmission operation is more steady reliable, improves the security, designs wedge tooth 15's tip into circular-arc structure simultaneously, reduces wedge tooth 15's wearing and tearing, improves life.

The belt pulley is meshed and driven by the wedge belt grooves 14 and the multi-wedge belt, the contact area and friction force between the belt pulley and the multi-wedge belt are large, the load distribution is uniform, the transmission capacity is large, the transmission vibration is small during integral operation, the operation is stable, the noise is low, the position of the wedge belt can be limited by adopting the design of the limiting convex ring, the wedge belt is limited in the wedge belt grooves 14 by adopting the limiting convex ring, the wedge belt is effectively prevented from falling out from the wedge belt grooves 14, the integral operation is stable, and the integral operation safety is improved.

The above is only a specific embodiment of the present utility model, but the technical features of the present utility model are not limited thereto. Any simple changes, equivalent substitutions or modifications made on the basis of the present utility model to achieve substantially the same technical effects are included in the scope of the present utility model.

Claims

1. A belt pulley, includes wheel body, its characterized in that:

the wheel body comprises a bearing part and a bearing part, and the bearing part is provided with a wedge groove;

the outer side wall of the wheel body is provided with a limiting convex ring, the limiting convex ring is positioned between the bearing belt part and the bearing part, and the outer diameter of the limiting convex ring is larger than that of the bearing belt part.

2. A pulley as in claim 1, wherein: the wheel body is provided with an installation cavity, the installation cavity comprises a first cavity, a second cavity and a third cavity, the first cavity, the second cavity and the third cavity are sequentially arranged along the bearing part towards the bearing part, and the inner diameters of the first cavity, the second cavity and the third cavity are sequentially increased.

3. A pulley as claimed in claim 2, wherein: and a clamping ring groove is arranged in the second cavity.

4. A pulley as claimed in claim 2, wherein: and a sealing arc groove is formed in the end part, close to the first cavity, of the second cavity.

5. A pulley as in claim 1, wherein: the side surface of the limiting convex ring, which faces the bearing part, is an inclined surface.

6. A pulley as in claim 1, wherein: the front and back ends of the wheel body are provided with buffer chamfers.

7. A pulley as in claim 1, wherein: an arc transition groove is arranged between the limiting convex ring and the bearing part.

8. A pulley as in claim 1, wherein: at least two wedge grooves are formed, wedge teeth are formed between every two adjacent wedge grooves, and the top ends of the wedge teeth are arc-shaped.

9. A pulley as in claim 1, wherein: the bearing part and the bearing belt part are of an integrated structure.