Anti-jamming lifting chain

Abstract

The utility model discloses a kind of anti-jamming hoisting chains, it includes outer chain plate, the side surface of the outer chain plate is fixedly connected with pin shaft, the side surface of the pin shaft is rotatably connected with inner chain plate, the side surface of the inner chain plate is fixedly connected with sleeve, the end of the pin shaft away from outer chain plate is fixedly connected with fixed part, the side surface of the fixed part is fixedly connected with chain side edge wheel, the side surface of the outer chain plate is fixedly connected with mounting plate, the inner side of the mounting plate is rotatably connected with guide wheel. Through the above components, through the rotatable guide wheel that mounting plate is equipped on the outer chain plate of the same side of chain side edge wheel, the surface of guide wheel will be contacted with guide rail first in the process of use, avoid only when chain side edge wheel in the process of use, chain side edge wheel is easy to be jammed on guide rail, to cause device jamming and chain damage situation, reduce the cost caused by maintenance and replacement chain of customer, improve the service life of hoisting chain.

Description

Technical Field

[0001] This utility model relates to the field of lifting chain technology, and in particular to an anti-jamming lifting chain. Background Technology

[0002] Lifting chains are widely used in various lifting and conveying equipment; however, in actual operation, existing lifting chains have significant technical defects. The side pulleys of existing lifting chains are in direct contact with the guide rails. Due to the lack of effective guiding and drag-reducing designs, these pulleys are prone to jamming on the guide rails during operation. This jamming not only causes the entire device to suddenly stop and disrupt production, affecting the schedule, but also causes serious damage to the chain. Frequent jamming significantly increases the cost of chain maintenance and replacement for customers, while also significantly shortening the service life of the lifting chain, causing considerable inconvenience and economic losses for users. Utility Model Content

[0003] The purpose of this invention is to at least solve one of the technical problems existing in the prior art, and to provide an anti-jamming lifting chain. This is achieved by mounting a rotatable guide wheel on the outer chain plate on the same side as the chain side wheel via a mounting plate. The surface of the guide wheel, furthest from the outer chain plate, extends beyond the surface of the chain side wheel. During use, the surface of the guide wheel contacts the guide rail first, and rolling friction replaces sliding friction to reduce resistance. This avoids the situation where, when only the chain side wheel is present, it easily gets stuck on the guide rail, leading to machine jamming, shutdown, and chain damage. This reduces the cost to customers due to chain maintenance and replacement, and increases the service life of the lifting chain.

[0004] This utility model also provides an anti-jamming lifting chain, comprising: an outer chain plate, a pin fixedly connected to the side surface of the outer chain plate, an inner chain plate rotatably connected to the side surface of the pin, a sleeve fixedly connected to the side surface of the inner chain plate, a fixing member fixedly connected to the end of the pin away from the outer chain plate, a chain side wheel fixedly connected to the side surface of the fixing member, a mounting plate fixedly connected to the side surface of the outer chain plate, and a guide wheel rotatably connected to the inner side surface of the mounting plate. Through these components, and by mounting a rotatable guide wheel on the outer chain plate on the same side as the chain side wheel, the surface of the guide wheel will first contact the guide rail during use. This avoids the chain side wheel easily getting stuck on the guide rail when only the chain side wheel is present during use, thus preventing the device from jamming and stopping, and causing chain damage. This reduces the cost to customers due to chain maintenance and replacement, and increases the service life of the lifting chain.

[0005] According to the present invention, an anti-jamming lifting chain comprises multiple sets of two outer chain plates, with a pin located between the two outer chain plates. The two outer chain plates are fixed together by the pin.

[0006] According to the present invention, an anti-jamming lifting chain comprises multiple sets of inner chain plates, with two plates in each set, and a sleeve located between two inner chain plates. The sleeve secures the two inner chain plates.

[0007] According to the present invention, in an anti-jamming lifting chain, the side surface of the outer chain plate is rotatably connected to the inner chain plate, and the side surface of the pin is rotatably connected to the sleeve. This allows relative rotation between the outer and inner chain plates, facilitating the use of the lifting chain.

[0008] According to the present invention, an anti-jamming lifting chain is provided, wherein the inner chain plate is located between two outer chain plates, and the distance between the guide wheel and the end furthest from the outer chain plate is greater than the distance between the chain side wheel and the end furthest from the outer chain plate. During use, the side surface of the guide wheel contacts the guide rail first, thereby preventing the chain side wheel from jamming into the guide rail and causing the lifting chain to jam.

[0009] Beneficial effects:

[0010] This technical solution for an anti-jamming lifting chain utilizes a rotatable guide wheel mounted on an outer chain plate on the same side as the chain side wheel via a mounting plate. The guide wheel's surface, furthest from the outer chain plate, extends beyond the surface of the chain side wheel. This ensures that during operation, the guide wheel's surface contacts the guide rail first, utilizing rolling friction instead of sliding friction to reduce resistance. This prevents the chain side wheel from easily jamming on the guide rail, which can lead to machine jamming, shutdown, and chain damage when only the chain side wheel is present. This reduces customer costs associated with chain maintenance and replacement, and extends the lifting chain's lifespan. Attached Figure Description

[0011] The present invention will be further described below with reference to the accompanying drawings and embodiments;

[0012] Figure 1 This is a front view of the overall structure of the anti-jamming lifting chain of this utility model;

[0013] Figure 2 This is a rear view of the overall structure of the anti-jamming lifting chain of this utility model;

[0014] Figure 3 This is a structural diagram of the pin shaft and chain side wheel of the anti-jamming lifting chain of this utility model.

[0015] Legend:

[0016] 1. Outer chain plate; 2. Inner chain plate; 3. Pin; 4. Sleeve; 5. Chain side wheel; 6. Guide wheel; 7. Fixing component; 8. Mounting plate. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] Reference Figure 1-3 This utility model provides an anti-jamming lifting chain, comprising: an outer chain plate 1, a pin 3 fixedly connected to the side surface of the outer chain plate 1, an inner chain plate 2 rotatably connected to the side surface of the pin 3, a sleeve 4 fixedly connected to the side surface of the inner chain plate 2, a fixing member 7 fixedly connected to the end of the pin 3 away from the outer chain plate 1, a chain side wheel 5 fixedly connected to the side surface of the fixing member 7, a mounting plate 8 fixedly connected to the side surface of the outer chain plate 1, and a guide wheel 6 rotatably connected to the inner side surface of the mounting plate 8.

[0019] Specifically, a pin 3 is used to pass through the sleeve 4 to fix the outer chain plate 1 and the inner chain plate 2 together. On the outside of the outer chain plate 1, the chain side wheel 5 is fixed to the pin 3 by a fastener 7. The rolling friction generated by the chain side wheel 5 replaces the sliding friction of the traditional chain, reducing resistance and protecting the guide rail. It also prevents the lifting chain from deviating and improves the accuracy of the lifting chain. On the outer chain plate 1 on the same side as the chain side wheel 5, a rotatable guide wheel 6 is mounted on the mounting plate 8. The surface of the guide wheel 6 that is furthest from the outer chain plate 1 exceeds the surface of the chain side wheel 5. This means that during use, the surface of the guide wheel 6 will contact the guide rail first. Rolling friction is used instead of sliding friction to reduce resistance. This avoids the situation where the chain side wheel 5 is easily stuck on the guide rail when only the chain side wheel 5 is in use, which could lead to the device jamming and stopping, and damage to the chain.

[0020] There are multiple sets of outer chain plates 1, with two plates in each set. The pin 3 is located between two outer chain plates 1. There are multiple sets of inner chain plates 2, with two plates in each set. The sleeve 4 is located between two inner chain plates 2. The side surface of the outer chain plate 1 is rotatably connected to the inner chain plate 2. The side surface of the pin 3 is rotatably connected to the sleeve 4. The inner chain plate 2 is located between two outer chain plates 1. The distance of the guide wheel 6 from the end away from the outer chain plate 1 is greater than the distance of the chain side wheel 5 from the end away from the outer chain plate 1.

[0021] Specifically, the outer chain plate 1 and the inner chain plate 2 are fixed together by a pin 3 passing through the sleeve 4, so that the outer chain plate 1 and the inner chain plate 2 can rotate relative to each other, so that the lifting chain can move according to the guide rail trajectory. Furthermore, the guide wheel 6 is located further away from the side wheel 5 of the chain, so that the side surface of the guide wheel 6 will contact the guide rail first, thereby avoiding the situation where the side wheel 5 of the chain easily gets stuck on the guide rail, causing the device to stop and the lifting chain to be damaged.

[0022] Working principle: A pin 3 passes through a sleeve 4 to fix the outer chain plate 1 and the inner chain plate 2 together. On the outside of the outer chain plate 1, a fastener 7 fixes the chain side wheel 5 to the pin 3. The rolling friction generated by the chain side wheel 5 replaces the sliding friction of the traditional chain, reducing resistance and protecting the guide rail. It also prevents the lifting chain from deviating and improves the accuracy of the lifting chain. On the outer chain plate 1 on the same side as the chain side wheel 5, a rotatable guide wheel 6 is mounted on the mounting plate 8. The surface of the guide wheel 6 furthest from the outer chain plate 1 exceeds the surface of the chain side wheel 5. During use, the surface of the guide wheel 6 will contact the guide rail first. Rolling friction is used instead of sliding friction to reduce resistance. This avoids the situation where the chain side wheel 5 easily gets stuck on the guide rail when only the chain side wheel 5 is in use, which would cause the device to jam and stop, and damage the chain.

[0023] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A jam-proof lifting chain, characterized in that, include: An outer chain plate (1) is fixedly connected to a pin (3) on its side surface. An inner chain plate (2) is rotatably connected to the side surface of the pin (3). A sleeve (4) is fixedly connected to the side surface of the inner chain plate (2). A fastener (7) is fixedly connected to the end of the pin (3) away from the outer chain plate (1). A chain side wheel (5) is fixedly connected to the side surface of the fastener (7). An mounting plate (8) is fixedly connected to the side surface of the outer chain plate (1). A guide wheel (6) is rotatably connected to the inner side surface of the mounting plate (8).

2. The anti-jamming lifting chain according to claim 1, characterized in that, The outer chain plate (1) has multiple sets of two plates in each set, and the pin (3) is located between two outer chain plates (1).

3. The anti-jamming lifting chain according to claim 1, characterized in that, The inner chain plate (2) has multiple sets of two plates in each set, and the sleeve (4) is located between two inner chain plates (2).

4. The anti-jamming lifting chain according to claim 1, characterized in that, The side surface of the outer chain plate (1) is rotatably connected to the inner chain plate (2), and the side surface of the pin (3) is rotatably connected to the sleeve (4).

5. The anti-jamming lifting chain according to claim 1, characterized in that, The inner chain plate (2) is located between the two outer chain plates (1), and the distance of the guide wheel (6) away from the outer chain plate (1) is greater than the distance of the chain side wheel (5) away from the outer chain plate (1).

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