High-parallelism high-chain-length precision double-row top plate conveying chain

Abstract

The invention provides a high-parallelism high-chain-length precision double-row top plate conveying chain, and relates to the technical field of chain equipment. The high-parallelism high-chain-length precision double-row top plate conveying chain is formed by welding a left chain, a right chain and top plates, each of the left chain and the right chain comprises an inner chain plate, an outer chain plate A, an outer chain plate B, a connecting chain plate, a pin shaft, a connecting pin shaft, a sleeve and a roller, and the high-parallelism high-chain-length precision double-row top plate conveying chain is characterized in that the inner chain plates, the sleeves and the rollers form inner chain links, the pin shafts, the outer chain plates A and the outer chain plates B form outer chain links, and the outer chain links form outer chain links. The small ends of the pin shafts on the outer chain links are riveted, the outer chain plates can be effectively prevented from falling off, and the connecting pin shafts, the outer chain plates B and the connecting chain plates form connecting chain links. A high-quality product is finally manufactured, and various indexes of the chain meet the requirements of drawings, high parallelism requirements proposed by customers, high precision requirements of chain length and the like and the requirement that the distances from the centers of the chains on the two sides to the top surface of a top plate are consistent through detection.

Description

Technical Field

[0001] The present invention relates to the technical field of chain equipment, and particularly to a double-row top plate conveyor chain with high parallelism and high chain length accuracy. Background Art

[0002] The double-row top plate conveyor chain is an efficient material conveying equipment, which is widely used in various industrial production and logistics fields. When the equipment operates, it is driven by bilateral chains at the same time. A top plate is welded on the chain plates of the bilateral chains, and it runs stably and reliably. Materials are placed on the top plate. According to the technical parameters provided by customers, we designed a double-row top plate conveyor chain with high parallelism and high accuracy. Through the design of the product by the technical department, the product structure, materials and heat treatment of the chain, key technical index parameters are determined, the processes of each component and the design of related molds are compiled. Through the procurement of materials, each component is manufactured, and finally assembled into a complete chain, and finally the top plate is welded.

[0003] However, many problems will be encountered in the production of traditional double-row top plate conveyor chains. In some products, the two conveying chains cannot maintain a high degree of parallelism, and the distance from the center of the two side chains to the top surface of the top plate is required to be consistent. Such products will affect the transportation effect over time and even cause safety accidents. Summary of the Invention

[0004] (I) Technical Problems to be Solved Aiming at the deficiencies of the prior art, the present invention provides a double-row top plate conveyor chain with high parallelism and high chain length accuracy, and solves the problems that traditional products will affect the transportation effect over time and even cause safety accidents.

[0005] (II) Technical Solutions To achieve the above objectives, the present invention is realized through the following technical solutions: a double-row top plate conveyor chain with high parallelism and high chain length accuracy, which is welded by a left chain, a right chain and a top plate. The left chain and the right chain both include inner link plates, outer link plate A, outer link plate B, connecting link plates, pin shafts, connecting pin shafts, sleeves and rollers. It is characterized in that: the inner link plates, sleeves and rollers form inner link joints, the pin shafts, outer link plate A and outer link plate B form outer link joints. The small end of the pin shaft on the outer link joint adopts a riveting form, which can effectively prevent the outer link plate from falling off. The connecting pin shaft, outer link plate B and connecting link plate form a connecting link joint. The fit between the link joint pin shaft and the link plate adopts a clearance fit. When the customer uses the chain, they can install and connect the inner link joints by themselves to make the chain form a closed loop. The connecting pin shaft adopts a D-shaped flat structure to prevent the connecting pin shaft from rotating. A hole for installing a split pin is opened on the connecting pin shaft to install a split pin to lock the connecting link plate. After the chain is formed, it is pre-stretched and paired to ensure that the accuracies of the left and right chains are consistent. Finally, the top plate is welded to the chain through a welding fixture. The fixture should accurately position the relative positions of the chain and the top plate to ensure high parallelism of the left and right chains, the center distance dimension of the two sides of the chain, the height dimension of the top plate, and the flexible clearance of the chain, etc.

[0006] Preferably, the states of the left chain and the right chain need to be kept highly parallel, the chain length accuracies of the left chain and the right chain should be consistent, and the distances from the top plate to the center of the chain should be kept consistent.

[0007] Preferably, the left chain and the right chain are made of carbon steel, and the top plate is made of carbon steel 16Mn.

[0008] Working principle: This structure uses a double-row chain combination, which improves the strength of the chain. The top plate is made of high-quality carbon steel and adopts a forging process to improve the strength, greatly improving the welding reliability. The connecting pin shaft adopts a D-shaped flat structure, which effectively solves the problem of preventing rotation of the connecting link joint during use, improves the wear resistance of the connecting pin shaft, and extends the service life of the chain. A hole for installing a split pin is opened on the connecting pin shaft to install a split pin to lock the connecting link plate. The dimensions of the components of the chain remain stable to ensure the stability of the assembled chain. The left and right chains are pre-stretched and paired during installation. The chain length accuracy is controlled within 0.03%, which is the prerequisite for ensuring the synchronous operation of the bilateral chains. To ensure the stability of the top plate welding, the top plate is fixed on a special fixture, and at the same time, positioning blocks are used to clamp the inner and outer link joints of the left and right chains respectively, so that the top plate is located at the specified position of the chain. The chain is pressed by a pressing device to avoid deformation errors during welding. Only in this way can the high parallelism requirements after welding of the bilateral chains and the top plate, the requirement of flexible rotation at each hinge of the chain, and the requirement of consistent distance between the top surface of the top plate and the centers of the two sides of the chain be ensured. (III) Beneficial effects

[0009] The present invention provides a double-row top plate conveyor chain with high parallelism and high chain length accuracy, having the following beneficial effects: The double-row top plate conveyor chain with high parallelism and high chain length accuracy prepared by this structure can improve the strength of the chain, enhance the strength of the top plate, greatly improve the welding reliability, and also extend the overall life of the chain. During the chain assembly process, the dimensional stability is ensured from the components, and pre-tensioning and pairing are carried out during assembly. The chain length accuracy is controlled within 0.03% to ensure the synchronous operation of the double-sided chain. The top plate is fixed by a special fixture, and the chain is pressed by a pressing device to avoid deformation errors during welding. The present invention finally manufactures high-quality products, and the chain meets the requirements of the drawings after inspection, including the high parallelism requirement, high chain length accuracy requirement, and the requirement that the distance from the center of the two-sided chain to the top surface of the top plate is consistent. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic installation structure diagram of the left chain and the right chain of the present invention; Figure 2 It is a schematic structure diagram of the inner link of the present invention; Figure 3 It is a schematic structure diagram of the outer link of the present invention; Figure 4 It is a schematic structure diagram of the connecting link of the present invention; Figure 5 It is a schematic installation diagram of the top plate and the connecting link of the present invention; Figure 6 It is a schematic overall structure diagram of the present invention.

[0011] Wherein, 1, processing box; 2, hot press fan blade; 3, mounting seat; 4, mounting elbow; 5, suspension cylinder; 6, servo motor; 7, connecting rod; 8, electromagnetic attachment; 9, waste material collection box; 10, diversion protrusion; 11, heating lamp; 12, mounting long rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0012] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment

[0013] As Figure 1-6As shown in the figure, the embodiment of the present invention provides a double-row top plate conveying chain with high parallelism and high chain length accuracy, which is welded by a left chain, a right chain and a top plate. Both the left chain and the right chain include inner link plates, outer link plate A, outer link plate B, connecting link plates, pin shafts, connecting pin shafts, sleeves and rollers. The inner link plates, sleeves and rollers form inner link sections, and the pin shafts, outer link plate A and outer link plate B form outer link sections. The small end of the pin shaft on the outer link section adopts a riveting form, which can effectively prevent the outer link plate from falling off. The connecting pin shaft, outer link plate B and connecting link plate form a connecting link section. The fit between the link pin shaft and the link plate adopts a clearance fit. When the customer uses the chain, they can install and connect the inner link sections by themselves to make the chain form a closed loop. The connecting pin shaft adopts a D-shaped flat structure to prevent the connecting pin shaft from rotating. A hole for inserting an open split pin is opened on the connecting pin shaft for installing an open split pin to lock the connecting link plate. After the chain is formed, it is pre-stretched and paired to ensure that the accuracies of the left and right chains are consistent. Finally, the top plate is welded to the chain through a welding fixture. The fixture should accurately position the relative positions of the chain and the top plate to ensure that the left and right chains are highly parallel, and meet the requirements such as the center distance dimension between the two sides of the chain, the height dimension of the top plate, and the flexible chain clearance.

[0014] The states of the left chain and the right chain need to be kept highly parallel, and the chain length accuracies of the left chain and the right chain should be consistent. The distances from the top plate to the center of the chain should be the same. In this way, the chain will run smoothly on the equipment and will not deviate or get stuck. The left chain and the right chain are made of carbon steel to increase the strength index of the chain. The top plate is made of carbon steel 16Mn, which can meet the strength requirements of the parts and the weldability requirements without heat treatment. The strength of the top plate is improved through forging process to ensure the requirements of the external dimensions. Then, the thickness dimension tolerance of the top plate is ensured through subsequent machining, providing guarantee for the consistency of the welding distance. Considering the influence of welding deformation on the flexibility of the chain, the deformation amount should be considered in the design, and the clearance between the pin shaft and the sleeve and the side clearance between the inner and outer link plates should be enlarged to ensure that the inner and outer link sections will not get stuck or have dead joints after welding.

[0015] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirits of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-row top plate conveyor chain with high parallelism and high chain length accuracy, which is formed by welding a left chain, a right chain and a top plate. The left chain and the right chain both include inner link plates, outer link plate A, outer link plate B, connecting link plates, pin shafts, connecting pin shafts, sleeves and rollers, and are characterized in that: The inner link plate, sleeve and roller form an inner link. The pin shaft, outer link plate A and outer link plate B form an outer link. The small end of the pin shaft on the outer link is riveted, which can effectively prevent the outer link plate from falling off. The connecting pin shaft, outer link plate B and connecting link plate form a connecting link. The clearance fit is adopted between the link pin shaft and the link plate. When the customer uses the chain, the inner link can be installed and connected by himself to make the chain closed. The connecting pin shaft adopts a D-shaped flat structure to prevent the connecting pin shaft from rotating. A hole for installing a split pin is opened on the connecting pin shaft to lock the connecting link plate by installing a split pin. After the chain is formed, pre-tensioning and pairing are carried out to ensure that the accuracy of the left and right chains is the same. Finally, the top plate is welded to the chain through a welding fixture. The fixture should accurately position the relative positions of the chain and the top plate to ensure that the left and right chains are parallel in height, and meet the requirements such as the center distance dimension of the two chains, the height dimension of the top plate, and the flexible clearance of the chain.

2. The double-row top plate conveyor chain with high parallelism and high chain length accuracy according to claim 1, wherein: The states of the left chain and the right chain need to be kept parallel in height. The chain length accuracy of the left chain and the right chain should be the same. The distance from the top plate to the center of the chain should be kept the same.

3. The double-row top plate conveyor chain with high parallelism and high chain length accuracy according to claim 1, characterized in that: The left chain and the right chain are made of carbon steel, and the top plate is made of carbon steel 16Mn.

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