Transmission belt

Abstract

The utility model discloses a transmission belt, which belongs to the technical field of belt structures, and comprises a V-shaped belt, curtain cloth and an elastic strip, the elastic strip is positioned between the V-shaped belt and the curtain cloth, the V-shaped belt is provided with a through hole, the through hole penetrates through the V-shaped belt, an elastic film is mounted in the through hole, a balancing weight is mounted on the elastic film, the balancing weight is made of magnetic materials, and the V-shaped belt is arranged on the V-shaped belt. And the balancing weights in the two adjacent through holes attract each other. Through the arrangement of the through hole, the elastic film and the balancing weight, in the belt rotating process, the elastic film in the through hole is gradually in an overturning state along with rotation of the belt, when the balancing weight is located between the highest point and the lowest point, the balancing weight pulls the elastic film downwards, and at the moment, the space, located above the elastic film, in the through hole sucks air from the outside; by arranging the through holes, external low-temperature gas can be sucked into the through holes, so that the V-shaped belt and the curtain cloth can be cooled through heat exchange, the V-shaped belt made of rubber is ensured to keep elasticity and toughness, and the effect of protecting the V-shaped belt is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of belt structures, in particular to a transmission belt. Background Art

[0002] V-belts, also known as V-belts or triangular belts, are a general term for circular transmission belts with a trapezoidal cross section. They are divided into two categories: special core V-belts and ordinary V-belts. According to their cross-sectional shape and size, they can be divided into ordinary V-belts, narrow V-belts, wide V-belts, multi-ribbed belts, etc. According to the belt body structure, they can be divided into cloth-wrapped V-belts and trimmed V-belts. According to the belt core structure, they can be divided into cord core V-belts and rope core V-belts. They are mainly used in power transmission of mechanical equipment driven by electric motors and internal combustion engines.

[0003] When the transmission belt is in high-speed operation for a long time, a large amount of heat will be generated due to the effect of friction and the conversion of kinetic energy. During the working process, this heat will gradually accumulate, causing the temperature of the belt to continue to rise. When the heat dissipation conditions in the working environment are poor, the heat cannot be dissipated in time; at this time, the belt will experience material performance degradation due to overheating, and when the temperature exceeds the limit that the belt material can withstand, the belt will break.

[0004] For this purpose, a transmission belt is proposed. Summary of the invention

[0005] The utility model aims to provide a transmission belt, which can solve the problem of poor belt heat dissipation.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a transmission belt, comprising a V-belt and a curtain, and also comprising an elastic strip, wherein the elastic strip is located between the V-belt and the curtain, a through hole is opened on the V-belt, the through hole passes through the V-belt, an elastic membrane is installed in the through hole, a counterweight block is installed on the elastic membrane, the counterweight block is made of magnetic material, and the counterweight blocks in two adjacent through holes attract each other.

[0007] When the side wall of the pulley is perpendicular to the horizontal plane, during the rotation of the belt, the elastic membrane in the through hole is gradually in a flipping state as the belt rotates. When the counterweight is located between the highest point and the lowest point, the counterweight pulls the elastic membrane downward. At this time, the space above the elastic membrane in the through hole inhales air from the outside, thereby being able to inhale the outside low-temperature gas into the through hole, thereby being able to cool the V-belt and the cord through heat exchange, thereby ensuring that the rubber V-belt maintains its elasticity and toughness, and playing a role in protecting the V-belt; and two adjacent magnetic counterweights can play a follow-up role, so that when a certain counterweight moves, it can drive the adjacent counterweight to move, so that multiple elastic membranes can be deformed, thereby improving the heat dissipation effect of the V-belt.

[0008] Preferably, protrusions are evenly arranged on the side walls of the through hole.

[0009] Since the contact area between the low-temperature gas and the protrusion is large, the heat exchange effect is improved, which plays a role in accelerating the heat dissipation efficiency.

[0010] Preferably, the V-belt is evenly provided with flow-guiding channels communicating with the through holes.

[0011] Part of the gas in the through hole enters the guide channel, thereby increasing the contact area between the low-temperature gas and the V-belt, and further improving the cooling effect on the V-belt.

[0012] Preferably, a cord is sleeved on the outer wall of the curtain.

[0013] By sheathing the strong polyester rope, it can withstand the tension generated during operation, thus improving the protection effect of the cord and V-belt.

[0014] Preferably, the side wall of the V-belt is wavy.

[0015] The wave-like effect further increases the contact area between the V-belt and the air, improves the heat dissipation effect of the V-belt, and plays a role in protecting the V-belt.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The present application sets a through hole, an elastic membrane and a counterweight block. During the rotation of the belt, the elastic membrane in the through hole gradually turns over as the belt rotates. When the counterweight block is located between the highest point and the lowest point, the counterweight block pulls the elastic membrane downward. At this time, the space above the elastic membrane in the through hole draws air from the outside, so that the low-temperature gas from the outside can be sucked into the through hole, so that the V-belt and the curtain can be cooled by heat exchange, thereby ensuring that the rubber V-belt maintains its elasticity and toughness, thereby protecting the V-belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 This is the overall structural view of the utility model;

[0020] Figure 2 It is a cross-sectional view of the utility model;

[0021] Figure 3 This is a combination diagram of the elastic membrane and the counterweight block of the utility model.

[0022] Description of reference numerals:

[0023] 1. V-belt; 2. Curtain fabric; 3. Elastic strip; 4. Through hole; 5. Elastic membrane; 6. Counterweight; 7. Protrusion; 8. Guide channel; 9. Rope. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 3 , the utility model provides a technical solution:

[0026] A transmission belt comprises a V-belt 1 and a curtain fabric 2, and also comprises an elastic strip 3, wherein the elastic strip 3 is located between the V-belt 1 and the curtain fabric 2, the V-belt 1 is provided with a through hole 4, the through hole 4 penetrates the V-belt 1, an elastic membrane 5 is installed in the through hole 4, a counterweight 6 is installed on the elastic membrane 5, the counterweight 6 is made of a magnetic material, and the counterweights 6 in two adjacent through holes 4 attract each other.

[0027] When the side wall of the pulley is vertical to the horizontal plane, during the rotation of the belt, the elastic membrane 5 in the through hole 4 is gradually in a flipping state as the belt rotates. When the counterweight 6 is located between the highest point and the lowest point, the counterweight 6 pulls the elastic membrane 5 downward. At this time, the space above the elastic membrane 5 in the through hole 4 inhales air from the outside, so that the low-temperature gas from the outside can be sucked into the through hole 4, so that the V-belt 1 and the curtain 2 can be cooled by heat exchange, thereby ensuring that the rubber V-belt 1 maintains its elasticity and toughness, and plays a role in protecting the V-belt 1; and two adjacent magnetic counterweights 6 can play a follow-up role, so that when a certain counterweight 6 moves, it can drive the adjacent counterweight 6 to move, so that multiple elastic membranes 5 can all be deformed, thereby improving the heat dissipation effect of the V-belt 1.

[0028] Specifically, Figure 2 As shown, protrusions 7 are evenly arranged on the side walls of the through hole 4 .

[0029] By adopting the above technical solution, since the contact area between the low-temperature gas and the protrusion 7 is large, the heat exchange effect is improved, which plays a role in accelerating the heat dissipation efficiency.

[0030] Specifically, Figure 2 As shown, the V-belt 1 is evenly provided with flow-guiding channels 8 communicating with the through holes 4 .

[0031] By adopting the above technical solution, part of the gas in the through hole 4 enters the guide channel 8, thereby increasing the contact area between the low-temperature gas and the V-belt 1 and further improving the cooling effect on the V-belt 1.

[0032] Specifically, Figure 1 As shown, a cord 9 is sleeved on the outer wall of the curtain 2.

[0033] By adopting the above technical solution, the strong polyester cord 9 can withstand the tension generated during operation, thereby improving the protection effect of the cord 2 and the V-belt 1.

[0034] Specifically, Figure 1 As shown, the side wall of the V-belt 1 is wavy.

[0035] By adopting the above technical solution, the contact area between the V-belt 1 and the air is further increased under the action of the wave shape, the heat dissipation effect of the V-belt 1 is improved, and the V-belt 1 is protected.

[0036] Working principle: When the side wall of the pulley is perpendicular to the horizontal plane, during the belt rotation, the elastic membrane 5 in the through hole 4 is gradually in a flipping state as the belt rotates. When the counterweight 6 is located between the highest point and the lowest point, the counterweight 6 pulls the elastic membrane 5 downward. At this time, the space above the elastic membrane 5 in the through hole 4 inhales air from the outside, thereby sucking the low-temperature gas from the outside into the through hole 4, thereby cooling the V-belt 1 and the cord 2 through heat exchange, thereby ensuring that the rubber V-belt 1 maintains its elasticity and toughness, and plays a role in protecting the V-belt 1; and the two adjacent The counterweight block 6 made of magnetic material can play a follow-up role, so when a certain counterweight block 6 moves, it can drive the adjacent counterweight block 6 to move, so that multiple elastic membranes 5 can be deformed, thereby improving the heat dissipation effect of the V-belt 1; since the contact area between the low-temperature gas and the protrusion 7 is large, the heat exchange effect is improved, and part of the gas in the through hole 4 enters the guide channel 8, thereby increasing the contact area between the low-temperature gas and the V-belt 1. By sheathing the rope 9 made of strong polyester material, it can withstand the tension generated during operation, thereby improving the protection effect of the curtain cloth 2 and the V-belt 1.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. A transmission belt, comprising a V-belt (1) and a cord (2), characterized in that: It also comprises an elastic strip (3), the elastic strip (3) being located between the V-belt (1) and the curtain fabric (2), the V-belt (1) being provided with a through hole (4), the through hole (4) penetrating the V-belt (1), an elastic film (5) being installed in the through hole (4), a counterweight (6) being installed on the elastic film (5), the counterweight (6) being made of a magnetic material, and the counterweights (6) in two adjacent through holes (4) attract each other.

2. A transmission belt according to claim 1, characterized in that: Protrusions (7) are evenly arranged on the side walls of the through holes (4).

3. A transmission belt according to claim 1, characterized in that: The V-belt (1) is evenly provided with flow-guiding channels (8) that are in communication with the through holes (4).

4. A transmission belt according to claim 1, characterized in that: A cord (9) is sleeved on the outer wall of the curtain (2).

5. A transmission belt according to claim 1, characterized in that: The side wall of the V-belt (1) is wavy.

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