Plate type conveying chain of elastic sealing structure

Abstract

The utility model discloses a plate type conveying chain with an elastic sealing structure, which comprises a pin shaft, two outer chain plates arranged on the pin shaft, a roller arranged between the two outer chain plates and sleeved on the pin shaft, two inner chain plates arranged on the roller and a roller arranged between the two inner chain plates and sleeved on the roller. A sealing ring I and a sealing ring II are sleeved on the pin shaft between the inner chain plate and the outer chain plate, the sealing ring I is positioned in an inner ring of the sealing ring II, a rubber ring I is arranged between the sealing ring I and the sealing ring II, and a rubber ring II and a rubber ring III are respectively arranged on two sides of the sealing ring I and are used for sealing between the outer chain plate and the inner chain plate; compared with the prior art, the conveying chain has the advantages that lubricating grease in the chain can be prevented from losing, materials can be prevented from entering the pin shaft sleeve, abrasion of the chain is reduced, and the service life of the conveying chain is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of building material conveying machinery, in particular to a plate conveying chain with an elastic sealing structure.

Background Art

[0002] The conveying chain is a key component of conveying machinery such as chain conveyors and is a chain with a wide range of applications. It has the advantages of diverse items that can be conveyed, strong adaptability to the working environment, arbitrary flow direction of items, good accuracy of conveying position, controllability of conveying rhythm, long conveying distance, and the ability to withstand heavy loads and impacts.

[0003] In a general plate conveying chain, during operation, the chain is driven by a transmission device. Frictional wear inevitably occurs between the inner link plate and the outer link plate, and between the surface of the pin shaft and the inner wall of the sleeve when being driven. Lubricating grease is added inside the chain to reduce chain wear, but usually, the lubricating grease will be lost or wasted due to various reasons over time. When the wear reaches a certain level, it is easy for materials to leak into the pin shaft sleeve of the conveying chain, further accelerating wear and shortening the service life of the chain.

Content of the Utility Model

[0004] The purpose of the utility model is to solve the problems in the prior art and propose a plate conveying chain with an elastic sealing structure, which can prevent the loss of lubricating grease inside the chain and the entry of materials into the pin shaft sleeve, reduce chain wear, and improve the service life of the conveying chain.

[0005] To achieve the above purpose, the utility model proposes a plate conveying chain with an elastic sealing structure, including a pin shaft. Two outer link plates are arranged on the pin shaft. A roller is sleeved on the pin shaft and located between the two outer link plates. Two inner link plates are arranged on the roller. A roller is sleeved on the roller and located between the two inner link plates. Sealing ring I and sealing ring II are sleeved on the pin shaft between the inner link plate and the outer link plate. Sealing ring I is located inside the inner circle of sealing ring II. A rubber ring I is arranged between sealing ring I and sealing ring II. Rubber ring II and rubber ring III are respectively arranged on both sides of sealing ring I for sealing between the outer link plate and the inner link plate. Rubber ring IV is respectively arranged on both sides of sealing ring II for sealing between the outer link plate and the inner link plate. Sealing ring I and sealing ring II are made of ultra-high molecular weight polyethylene material.

[0006] Preferably, the cross-section of the rubber ring I is circular.

[0007] Preferably, the cross-section of the rubber ring II is V-shaped.

[0008] Preferably, the cross-section of the rubber ring III is rectangular.

[0009] Preferably, the rubber ring IV is an O-ring.

[0010] Preferably, a latch is provided on the pin shaft.

[0011] Preferably, blocking bodies are provided on both the sealing ring II and the sealing ring I. The two blocking bodies are respectively located on the upper and lower sides of the rubber ring I, and the contact surface between the blocking body and the rubber ring I is an inclined surface.

[0012] The thickness of the sealing ring I is greater than that of the sealing ring II.

[0013] Preferably, a main oil passage is provided at one end of the pin shaft, several oil outlet passages communicating with the main oil passage are provided on the peripheral surface of the pin shaft, and an oil injection nozzle is provided at the input end of the main oil passage.

[0014] The beneficial effects of the present utility model are as follows: By adding a combination of rubber rings and sealing rings between the inner link plates, outer link plates or hopper connection plates, the present utility model improves the sealing performance, reduces the frictional resistance, and can also save the installation space; The use of ultra-high molecular weight polyethylene, this material has excellent wear resistance, self-lubrication, relatively high strength, stable chemical properties, and strong anti-aging performance, which can effectively extend the service life of the chain and avoid the phenomenon of the sealing ring breaking under the elastic compression state; The sealing ring I is sealed bidirectionally by the rubber ring II and the rubber ring III. When other rubber rings are worn, before re-clamping or replacement, the rubber ring IV rebounds to ensure tightness, preventing materials from entering the inside of the chain and causing wear. Compared with the prior art, it can prevent the loss of lubricating grease inside the chain and the entry of materials into the pin sleeve, reduce the wear of the chain, and improve the service life of the conveying chain.

[0015] The features and advantages of the present utility model will be described in detail through embodiments in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of a plate conveying chain with an elastic sealing structure of the present utility model.

[0017] In the figure: 1 - outer link plate, 2 - latch, 3 - inner link plate, 4 - sealing ring I, 5 - rubber ring II, 6 - rubber ring I, 7 - rubber ring III, 8 - sealing ring II, 9 - rubber ring IV, 10 - roller, 11 - pin shaft, 12 - roller, 13 - oil injection nozzle, 14 - main oil passage, 15 - oil outlet passage, 16 - blocking body.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Refer to Figure 1, a plate conveyor chain with an elastic sealing structure of the present utility model, includes a pin shaft 11, two outer link plates 1 are provided on the pin shaft 11, a roller 10 is sleeved on the pin shaft 11 and located between the two outer link plates 1, two inner link plates 3 are provided on the roller 10, a roller 12 is sleeved on the roller 10 and located between the two inner link plates 3, a sealing ring I 4 and a sealing ring II 8 are sleeved on the pin shaft 11 between the inner link plate 3 and the outer link plate 1, the sealing ring I 4 is located within the inner circle of the sealing ring II 8, a rubber ring I 6 is provided between the sealing ring I 4 and the sealing ring II 8, rubber rings II 5 and III 7 are respectively provided on both sides of the sealing ring I 4 for sealing between the outer link plate 1 and the inner link plate 3, rubber rings IV 9 are respectively provided on both sides of the sealing ring II 8 for sealing between the outer link plate 1 and the inner link plate 3, and the sealing ring I 4 and the sealing ring II 8 are made of ultra-high molecular weight polyethylene material.

[0019] The cross-section of the rubber ring I 6 is circular.

[0020] The cross-section of the rubber ring II 5 is V-shaped.

[0021] The cross-section of the rubber ring III 7 is rectangular.

[0022] The rubber ring IV 9 is an O-ring.

[0023] A cotter pin 2 is provided on the pin shaft 11.

[0024] Blocking bodies 16 are provided on both the sealing ring II 8 and the sealing ring I 4, the two blocking bodies 16 are respectively located on the upper and lower sides of the rubber ring I 6, and the contact surface between the blocking body 16 and the rubber ring I 6 is an inclined surface.

[0025] The thickness of the sealing ring I 4 is greater than that of the sealing ring II 8.

[0026] One end of the pin shaft 11 is provided with a main oil passage 14, several oil outlet passages 15 communicating with the main oil passage 14 are provided on the circumferential surface of the pin shaft 11, and an oil injection nozzle 13 is provided at the input end of the main oil passage 14.

[0027] The working process of the present utility model:

[0028] During the operation of a plate conveyor chain with an elastic sealing structure of the present utility model, an elastic sealing structure composed of a rubber ring and a sealing ring is added between the inner link plate 3, the outer link plate 1 or the hopper connecting plate to improve the sealing performance, reduce the frictional resistance, and at the same time save the installation space. When the chain is running, the frictional force originally generated between the inner link plate 3 and the outer link plate 1 is absorbed by the elastic sealing structure, greatly reducing the wear of the inner and outer link plates. The rubber ring IV9 has a spring-back characteristic and is originally in a compressed state in the elastic sealing structure combination, ensuring the sealing performance of the combination together with the rubber ring II5. The oil passage facilitates the regular addition of grease.

[0029] When the chain is running, the inner link plate 3 and the outer link plate 1 respectively transmit the force to the corresponding sealing rings through the contacting rubber rings, and the two sealing rings act on the rubber ring I6 with small smooth frictional force at the same time. The two rubber rings IV9 usually act on transmission and sealing. When other rubber rings are worn, before being re-compressed or replaced, the spring-back of the rubber rings IV9 is used to ensure tightness. Prevent materials from entering the inside of the chain and causing wear.

[0030] The two pairs of sealing rings play a stabilizing and protective role. Improve the service life of the whole set of seals.

[0031] The present invention can reduce the loss speed of the grease inside the chain, reduce the wear of the chain, and improve the service life of the conveyor chain;

[0032] Reduce the wear between the inner link plate and the outer link plate, and reduce the replacement of chain parts;

[0033] Prevent materials from entering the pin sleeve during the operation of the conveyor chain;

[0034] Prevent the tightness of the chain from decreasing after the chain is worn.

[0035] The above embodiments are illustrative of the present utility model, not limiting the present utility model. Any simple transformation of the present utility model belongs to the protection scope of the present utility model.

Claims

1. A plate conveyor chain with an elastic sealing structure, characterized in that: It includes a pin shaft (11). There are two outer link plates (1) provided on the pin shaft (11). A drum (10) is sleeved on the pin shaft (11) and located between the two outer link plates (1). There are two inner link plates (3) provided on the drum (10). A roller (12) is sleeved on the drum (10) and located between the two inner link plates (3). A sealing ring I (4) and a sealing ring II (8) are sleeved on the pin shaft (11) between the inner link plate (3) and the outer link plate (1). The sealing ring I (4) is located within the inner circle of the sealing ring II (8). A rubber ring I (6) is provided between the sealing ring I (4) and the sealing ring II (8). Rubber rings II (5) and rubber rings III (7) are respectively provided on both sides of the sealing ring I (4) for sealing between the outer link plate (1) and the inner link plate (3). Rubber rings IV (9) are respectively provided on both sides of the sealing ring II (8) for sealing between the outer link plate (1) and the inner link plate (3). The sealing ring I (4) and the sealing ring II (8) are made of ultra-high molecular weight polyethylene material.

2. The plate conveyor chain with an elastic sealing structure according to claim 1, characterized in that: The cross-section of the rubber ring I (6) is circular.

3. The plate conveyor chain with an elastic sealing structure according to claim 1, characterized in that: The cross-section of the rubber ring II (5) is V-shaped.

4. The plate conveyor chain with an elastic sealing structure according to claim 1, characterized in that: The cross-section of the rubber ring III (7) is rectangular.

5. The plate conveyor chain with an elastic sealing structure according to claim 1, characterized in that: The rubber ring IV (9) is an O-ring.

6. The plate conveyor chain with an elastic sealing structure according to claim 1, characterized in that: A cotter pin (2) is provided on the pin shaft (11).

7. The plate conveyor chain with an elastic sealing structure according to claim 1, characterized in that: Blocking bodies (16) are provided on both the sealing ring II (8) and the sealing ring I (4). The two blocking bodies (16) are respectively located on the upper and lower sides of the rubber ring I (6). The contact surface of the blocking body (16) with the rubber ring I (6) is an inclined surface.

8. The plate conveyor chain with an elastic sealing structure according to claim 1, characterized in that: The thickness of the sealing ring I (4) is greater than the thickness of the sealing ring II (8).

9. A plate conveyor chain with an elastic sealing structure according to any one of claims 1 to 8, characterized in that: One end of the pin shaft (11) is provided with a main oil passage (14). A number of oil outlet passages (15) communicating with the main oil passage (14) are provided on the peripheral surface of the pin shaft (11). An oil injection nozzle (13) is provided at the input end of the main oil passage (14).

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