CN110410481B - Elastic reset gear tooth driving wheel - Google Patents

Abstract

The present invention relates to an elastic reset gear driving wheel, the structure of which includes a wheel disc, a retaining ring, movable gear teeth and an elastic reset element, a plurality of movable gear teeth are distributed on the outer circumference of the wheel disc, and the movable gear teeth are axially connected to the wheel disc, the retaining ring is arranged on the disc surface of the wheel disc, and is used to limit the rotation position of the movable gear teeth, and the elastic reset element is used to reset the movable gear teeth after rotation. A plurality of fixed gear teeth are arranged on the wheel disc, and the movable gear teeth are respectively arranged on both sides of each of the fixed gear teeth, and a pin is connected through the fixed gear teeth and the corresponding movable gear teeth, so that the movable gear teeth are axially connected to the fixed gear teeth. The movable gear teeth of the present invention can rotate freely, so that there is a flexible contact between the steel cable plug disc and the gear teeth of the driving wheel, and the movable gear teeth can be fully meshed with the plug disc, thereby reducing the wear of the steel cable plug disc and reducing the maximum stress on the plug disc, which is suitable for long-distance feed transportation lines.

Description

A kind of elastic reset gear driving wheel

Technical Field

The invention relates to a feed transport driving device, in particular to an elastic reset gear driving wheel.

Background Art

With the improvement of social development, labor costs are getting higher and higher, and the requirements for automated breeding equipment are also getting higher and higher. Correspondingly, the livestock breeding mode has also transformed from the original small-scale farms and scattered households to large-scale integrated, group, intensive, high-quality, high-efficiency, unmanned management and feeding breeding mode. In the past, the breeding equipment had a high failure rate, unstable operation, difficult maintenance, high maintenance costs, and low comprehensive benefits, which no longer meet the needs of the existing market. The promotion of a feed transportation system with high quality, high efficiency, high stability, and high intelligence and automation is the only way to replace the existing complicated manual feeding and realize unmanned automation of livestock breeding.

The drive device in the feed conveyor line is one of the core components of the entire feed conveying system, and plays a vital role in the operation of the entire system. The entire feed conveying system circulates and feeds. In the main engine of the drive device, the plug chain (plug + wire rope or plug + steel chain) is dragged by the active wheel teeth to operate. Since the active wheel teeth and the plug cannot be truly meshed, the traditional fixed-tooth drive wheel cannot achieve surface contact torque drive no matter how the tooth shape is optimized, and can only achieve line contact. When the load is large, the contact properties are poor, the plug is easy to wear and damage, and the life is affected. When the length of a single machine feed line exceeds 200 meters, the contact stress and friction between the gear and the plug are large, and the plug is subject to a large bending moment. Therefore, the conveying distance and load of a single host are greatly limited, and can only be achieved by connecting multiple hosts in series or in parallel. At present, the industry improves the conveying distance of a single machine by optimizing the shape of the gear teeth, but it cannot really achieve a transportation range of 400 to 500 meters, and the plug is still locally subjected to large contact stress, friction and bending moment, which does not fundamentally solve the problem.

Summary of the invention

The purpose of the present invention is to provide a driving wheel with elastic reset gear to solve the problem of large contact stress between the driving wheel teeth and the plug disc of the main machine of the driving device in the feed conveying line.

The present invention is implemented as follows: a spring-reset gear driving wheel comprises a wheel disc, a retaining ring, movable gear teeth and an elastic reset element, a plurality of the movable gear teeth are distributed on the outer circumference of the wheel disc, and the movable gear teeth are axially connected to the wheel disc, the retaining ring is arranged on the disc surface of the wheel disc to limit the rotational position of the movable gear teeth, and the elastic reset element is used to reset the movable gear teeth after rotation.

A plurality of fixed gear teeth are arranged on the wheel disc, and the fixed gear teeth are evenly distributed on the outer circumference of the wheel disc. A steel cable groove is opened on the top of the fixed gear teeth, and the movable gear teeth are respectively arranged on both sides of each of the fixed gear teeth. A pin shaft is passed through the fixed gear teeth and the corresponding movable gear teeth, so that the movable gear teeth are axially connected to the fixed gear teeth.

Limiting blocks are evenly arranged on the outer circumference of the retaining ring, each of the limiting blocks corresponds to one of the movable gear teeth, and the limiting blocks are located at one side of the inner ring of the movable gear teeth.

Among them, the elastic reset element is a spring sheet, which is fixed on the retaining ring, and a clamping groove is opened on the retaining ring. One elastic arm of the spring sheet is fixed in the clamping groove, and the other elastic arm of the spring sheet is in contact with the movable gear tooth, and the contact position of the spring sheet and the movable gear tooth is on the same side as the limit block.

Meanwhile, the elastic reset element may also be a tension spring, one end of which is fixed on the movable gear tooth, and the other end is fixed on the retaining ring, and the connection point where the tension spring connects the movable gear tooth is located on a side away from the limit block.

In addition to being made into an integral body, the wheel disc may also be composed of two outer discs and an inner disc arranged between the two outer discs, the inner disc being annular, and having first gear tooth portions and second gear tooth portions evenly distributed on the outer circumference of the outer disc and the outer circumference of the inner disc respectively, the second gear tooth portion and the first gear tooth portions on both sides thereof together constitute the fixed gear teeth, an inclined surface is provided on the inner side of the first gear tooth portion, and the top of the second gear tooth portion and the two inclined surfaces on both sides thereof together constitute the steel cable groove.

An axial hole is opened at the center of the wheel disc, and a hub ring for passing a rotating shaft is installed on the axial hole.

The present invention evenly arranges movable gear teeth on the outer circumference of the wheel disc. The movable gear teeth can rotate around the pin shaft. The rotation of the movable gear teeth in one direction is limited by the retaining ring, and the rotation of the movable gear teeth in the other direction is reset by the elastic reset element. When the driving wheel rotates, the plugs on the cable plug disc mesh with the movable gear teeth one by one, and the plug disc changes from linear motion to curved motion with rotation. The movable gear teeth rotate a certain angle to bring the wire rope or steel chain of the cable plug disc into the groove of the cable. The plug disc causes the movable gear teeth to rotate under force, and the movable gear teeth stop after turning to the limit position of the retaining ring. When the plug disc continues to run until it is about to fall out of the driving wheel, the movable gear teeth will rotate adaptively, so that the gear teeth are always in a surface contact state with the plug disc, thereby improving the stress distribution of the plug disc, thereby reducing the wear and damage of the plug disc. When the plug disc falls out of the movable gear teeth, the movable gear teeth are automatically reset under the action of the elastic recovery element.

The movable gear teeth of the present invention can rotate freely, so that the steel cable plug disc and the gear teeth of the driving wheel are in flexible contact, and the movable gear teeth and the plug disc can be fully meshed, thereby reducing the wear of the steel cable plug disc and the maximum stress on the plug disc, and is suitable for long-distance feed transportation lines.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a schematic diagram of the structure of the elastic reset element of the present invention being a spring.

FIG. 2 is a cutaway view of the movable gear teeth of FIG. 1 .

FIG. 3 is a schematic diagram of the structure in which the elastic element of the present invention is a tension spring.

FIG. 4 is a cross-sectional view of the movable gear teeth of FIG. 3 .

In the figure: 1. wheel disc; 2. movable gear teeth; 3. retaining ring; 4. shaft hole; 5. hub ring; 6. limit block; 7. spring; 8. tension spring; 1-1. outer disc; 1-2. inner disc; 1-3. first gear tooth portion; 1-4. second gear tooth portion; 1-5. fixed gear teeth; 1-6. inclined surface; 1-7. steel cable groove; 2-1. pin shaft; 2-2. elastic retaining plate; 3-1. snap-in groove.

DETAILED DESCRIPTION

As shown in Figures 1 and 3, the present invention includes a wheel disc 1, a retaining ring 3, movable gear teeth 2 and an elastic reset element. A plurality of movable gear teeth 2 are distributed on the outer circumference of the wheel disc 1, and the movable gear teeth 2 are axially connected to the wheel disc 1. The retaining ring 3 is arranged on the disc surface of the wheel disc 1 to limit the rotation position of the movable gear teeth 2, and the elastic reset element is used to reset the movable gear teeth 2 after rotation.

As shown in Figures 2 and 3, a plurality of fixed gear teeth 1-5 are provided on the wheel disc 1. The fixed gear teeth 1-5 are evenly distributed on the outer circumference of the wheel disc 1. A steel cable groove 1-7 is provided on the top of the fixed gear teeth 1-5. A movable gear tooth 2 is provided on both sides of each fixed gear tooth 1-5. A pin shaft 2-1 is connected between the fixed gear tooth 1-5 and the corresponding movable gear tooth 2. Elastic baffles 2-2 are installed at both ends of the pin shaft 2-1. The elastic baffles 2-2 fix the pin shaft 2-1, so that the movable gear tooth 2 is axially connected to the fixed gear tooth 1-5.

Retaining rings 3 are respectively arranged on both sides of the wheel disc 1 , and limiting blocks 6 are evenly arranged on the outer circumference of the retaining rings 3 . Each limiting block 6 corresponds to a movable gear tooth 2 , and the limiting block 6 is located on one side of the inner circle of the movable gear tooth 2 .

The elastic restoring element is an element such as a spring 7 or a tension spring 8 that can provide a restoring force to the movable gear tooth 2 .

As shown in Fig. 1 and Fig. 2, the elastic reset element is a spring sheet 7, which is fixed on the retaining ring 3. A clamping groove 3-1 is provided on the retaining ring 3. One elastic arm of the spring sheet 7 is fixed in the clamping groove 3-1. Another elastic arm of the spring sheet 7 contacts the movable gear 2. The contact position of the spring sheet 7 and the movable gear 2 is on the same side as the limit block 6. Under the elastic force of the spring sheet 7, the movable gear 2 is pushed to rotate around the pin 2-1, and the bottom of the movable gear 2 leaves the limit block 6. When working, the cable plug disc is installed on the driving wheel, and the plug disc contacts the movable gear 2, so that the movable gear 2 rotates to contact the limit block 6, thereby limiting the position of the movable gear 2. The driving wheel rotates to gradually disengage the plug disc from the movable gear 2. In this process, the movable gear 2 can rotate continuously around the pin 2-1, so that the movable gear 2 is always in flexible contact with the plug disc. When the plug disc is disengaged from the driving wheel, the movable gear 2 is reset under the action of the spring sheet 7.

As shown in Fig. 3 and Fig. 4, the elastic reset element is a tension spring 8, one end of which is fixed on the movable gear teeth 2, and the other end is fixed on the retaining ring 3. The connection between the tension spring 8 and the movable gear teeth 2 is on the opposite side of the limit block 6. Under the elastic force of the tension spring 8, the movable gear teeth 2 are pulled to rotate around the pin shaft 2-1, and the bottom of the movable gear teeth 2 leaves the limit block 6. During operation, the cable plug disc is installed on the driving wheel, and the plug disc contacts the movable gear teeth 2, so that the movable gear teeth 2 rotate until they contact the limit block 6, thereby limiting the position of the movable gear teeth 2. The driving wheel rotates to gradually disengage the plug disc from the movable gear teeth 2. During this process, the movable gear teeth 2 can continuously rotate around the pin shaft 2-1, so that the movable gear teeth 2 are always in flexible contact with the plug disc. When the plug disc is disengaged from the driving wheel, the movable gear teeth 2 are reset under the action of the spring.

As shown in FIG. 3 and FIG. 4 , the wheel disc 1 can be made in one piece. The entire wheel disc 1 is die-cast and has strong rigidity and strength.

As shown in Fig. 1 and Fig. 2, the wheel disc 1 can also be composed of two outer discs 1-1 and an inner disc 1-2 arranged between the two outer discs 1-1, the inner disc 1-2 is annular, and the first gear teeth 1-3 and the second gear teeth 1-4 are evenly distributed on the outer circumference of the outer disc 1-1 and the outer circumference of the inner disc 1-2 respectively, the second gear teeth 1-4 and the first gear teeth 1-3 on both sides thereof together form fixed gear teeth 1-5, the inner side of the first gear teeth 1-3 is provided with an inclined surface 1-6, and the top of the second gear teeth 1-4 and the two inclined surfaces 1-6 on both sides thereof together form a steel cable groove 1-7. The split wheel disc 1 needs to be fixed by bolts, but because the inner disc 1-2 is annular, it can greatly reduce the weight of the wheel disc 1 while saving a lot of materials.

At the same time, an axial hole 4 is opened at the center of the wheel disc 1, and a hub ring 5 for passing the rotating shaft is installed on the axial hole 4.

The present invention evenly arranges movable gear teeth 2 on the outer circumference of the wheel disc 1. The movable gear teeth 2 can rotate around the pin shaft 2-1. The rotation of the movable gear teeth 2 in one direction is limited by the retaining ring 3, and the rotation of the movable gear teeth 2 in the other direction is reset by the elastic reset element. When the driving wheel rotates, the plugs on the cable plug disc mesh with the movable gear teeth 2 one by one, and the plug disc changes from linear motion to curved motion with rotation. The movable gear teeth 2 rotate a certain angle to bring the wire rope or steel chain of the cable plug disc into the cable groove 1-7. The plug disc makes the movable gear teeth 2 subject to force, and the movable gear teeth 2 stop after turning to the limit position of the retaining ring 3. When the plug disc continues to run until it is about to fall out of the driving wheel, the movable gear teeth 2 will rotate adaptively, so that the gear teeth are always in a surface contact state with the plug disc, thereby improving the stress distribution of the plug disc, thereby reducing the wear and damage of the plug disc. When the plug disc falls out of the movable gear teeth 2, the movable gear teeth 2 are automatically reset under the action of the elastic recovery element.

The movable gear 2 of the present invention can rotate freely, so that the steel cable plug disc and the gear teeth of the driving wheel are in flexible contact, and the movable gear 2 and the plug disc can be fully engaged, thereby reducing the wear of the steel cable plug disc and reducing the maximum stress on the plug disc. It is suitable for long-distance feed transportation lines.

Claims (3)

1. An elastic reset gear driving wheel, characterized in that it comprises a wheel disc, a retaining ring, a movable gear tooth and an elastic reset element, wherein a plurality of the movable gear teeth are distributed on the outer circumference of the wheel disc, and the movable gear teeth are axially connected to the wheel disc, the retaining ring is arranged on the disc surface of the wheel disc, and is used to limit the rotation position of the movable gear teeth, and the elastic reset element is used to reset the movable gear teeth after rotation; A plurality of fixed gear teeth are arranged on the wheel disc, and the fixed gear teeth are evenly distributed on the outer circumference of the wheel disc. A steel cable groove is provided on the top of the fixed gear teeth. The movable gear teeth are arranged on both sides of each of the fixed gear teeth. A pin is passed through the fixed gear teeth and the corresponding movable gear teeth, so that the movable gear teeth are axially connected to the fixed gear teeth. The movable gear teeth are used to contact the plug disc of the steel cable plug disc. Limit blocks are evenly arranged on the outer circumference of the retaining ring, each of the limit blocks corresponds to one of the movable gear teeth, and the limit blocks are located on one side of the inner ring of the movable gear teeth; The elastic reset element is a spring sheet, which is fixed on the retaining ring, and a clamping groove is formed on the retaining ring. One elastic arm of the spring sheet is fixed in the clamping groove, and the other elastic arm of the spring sheet is in contact with the movable gear teeth, and the contact position between the spring sheet and the movable gear teeth is on the same side as the limit block; or The elastic reset element is a tension spring, one end of which is fixed on the movable gear tooth, and the other end is fixed on the retaining ring. The connection point between the tension spring and the movable gear tooth is located on a side away from the limit block. 2. The elastic reset gear driving wheel according to claim 1 is characterized in that the wheel disc is composed of two outer discs and an inner disc arranged between the two outer discs, the inner disc is annular, and the first gear tooth portion and the second gear tooth portion are evenly distributed on the outer circumference of the outer disc and the outer circumference of the inner disc, respectively, the second gear tooth portion and the first gear tooth portions on both sides thereof together constitute the fixed gear teeth, the inner side of the first gear tooth portion is provided with an inclined surface, and the top of the second gear tooth portion and the two inclined surfaces located on both sides thereof together constitute the steel cable groove. 3. The elastic reset gear driving wheel according to claim 1 is characterized in that an axial hole is opened at the center of the wheel disc, and a hub ring for passing the rotating shaft is installed on the axial hole.