A connecting assembly for a chain and a scraper

By setting a thrust element between the support lug and the lug plate to share the load stress of the pin, the problem of pin wear and breakage in the scraper-type slag remover is solved, and a high-strength, reliable connection and stable transmission between the chain and the scraper are achieved.

CN224449085UActive Publication Date: 2026-07-03QINGDAO HAIZHOU ELECTRIC POWER EQUIP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QINGDAO HAIZHOU ELECTRIC POWER EQUIP CO LTD
Filing Date
2025-08-25
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

During use, the pins of the scraper and chain of the slag removal machine are prone to wear and breakage, affecting the stable transmission of the equipment.

Method used

A thrust member is installed between the support lug and the lug plate to transmit the thrust between the support lug and the lug plate, thereby sharing the load stress of the pin and preventing the pin from being damaged by overload.

Benefits of technology

It effectively reduces the stress on the pin, prevents the pin from deforming or breaking due to long-term exposure to alternating thrust, improves the strength and reliability of the connecting components, and extends their service life.

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Abstract

This application relates to a connecting assembly for a chain and a scraper, belonging to the technical field of slag removal machines. It includes a connecting assembly for a chain and a scraper, comprising a support lug, a lug plate, a pin, and a thrust member. The pin passes through the support lug and the lug plate, detachably connecting them. The thrust member is disposed on the support lug and abuts against the lug plate, for transmitting the thrust between the support lug and the lug plate. This application effectively distributes the load stress borne by the pin, preventing overload damage, stabilizing transmission, and preventing derailment.
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Description

Technical Field

[0001] This application relates to the field of slag removal machine technology, and in particular to a connection assembly for a chain and a scraper. Background Technology

[0002] The scraper chain is the load-bearing and traction component of the scraper slag remover. The chain and scraper are detachably connected by a pin. During use, the scraper moves forward with the chain. However, because the scraper is under heavy load during material transportation, it is prone to wear and tear, which can lead to pin breakage and affect the stable transmission of the equipment. Utility Model Content

[0003] To address the problem that scraper-type slag remover equipment is prone to wear and tear during use, leading to pin breakage and affecting stable transmission, this application provides a connection component for the chain and scraper.

[0004] The technical solution provided in this application for a connection assembly between a chain and a scraper is as follows:

[0005] A connection assembly for a chain and a scraper, comprising:

[0006] Support ear blocks;

[0007] Ear plates;

[0008] A pin is provided, which passes through the support lug and the lug plate to detachably connect the support lug and the lug plate;

[0009] A thrust member is disposed on the support lug and abuts against the lug plate, for transmitting the thrust between the support lug and the lug plate.

[0010] By adopting the above solution, the connecting assembly provides a thrust member on the support lug, which directly abuts against the lug plate. When the chain moves forward, the thrust member can transmit the thrust between the support lug and the lug plate, thereby sharing the load stress borne by the pin and preventing it from being overloaded and damaged. The pin only serves as a hinge connection and mainly bears the rotational load, thus significantly reducing the stress on the pin and preventing it from deforming or breaking due to long-term exposure to alternating thrust.

[0011] Preferably, the support ear block includes two support plates and a support base, the two support plates are vertically fixed to the support base on the side away from the scraper, and the two support plates are arranged in parallel.

[0012] By adopting the above scheme, the supporting lug is vertically fixed to the supporting base by two parallel supporting plates. The supporting base is fixedly connected to the scraper to transmit power. The two supporting plates provide lateral limiting and guiding for the lug, so that it can be stably inserted and positioned between the supporting plates. This not only improves the assembly accuracy and connection rigidity of the chain and the scraper, but also effectively prevents the scraper from shifting laterally or twisting and derailing during operation. At the same time, it provides a structural foundation for the installation of the thrust component and enhances the reliability and durability of the overall connection.

[0013] Preferably, the ear plate is inserted between the support plates, and the thrust member is connected between the two support plates.

[0014] By adopting the above solution, the cooperation between the support plate and the ear plate achieves guiding and positioning, and has the advantages of convenient assembly, stable operation and strong impact resistance, which significantly improves the strength and service life of the connecting components.

[0015] Preferably, the ear plate has a clearance portion on the side near the thrust member, and the clearance portion abuts against the thrust member.

[0016] By adopting the above solution, the contact between the clearance part and the thrust member ensures reliable force transmission, stabilizes the transmission of the connecting components, and improves the service life of the transmission components.

[0017] In summary, this application has the following beneficial effects:

[0018] It effectively distributes the load stress borne by the pin shaft, preventing overload damage and wear, optimizes the power transmission path, improves connection strength and transmission stability, effectively prevents scraper deviation or derailment, and at the same time maintains a simple structure, convenient assembly and maintenance, extending the overall service life of the connecting components. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a connection assembly for a chain and a scraper according to Embodiment 1 of this application;

[0020] Figure 2 This is a cross-sectional view of a structural schematic diagram of a connection assembly for a chain and a scraper according to Embodiment 1 of this application;

[0021] Figure 3 This is a schematic diagram of the structure of a connection assembly for a chain and a scraper according to Embodiment 2 of this application;

[0022] Figure 4 This is a cross-sectional view of a structural schematic diagram of a connection assembly for a chain and a scraper according to Embodiment 2 of this application;

[0023] Figure 5 This is a schematic diagram of the structure of a connection assembly for a chain and a scraper according to Embodiment 3 of this application;

[0024] Figure 6 This is a schematic diagram of the structure of a connection assembly for a chain and a scraper according to Embodiment 4 of this application;

[0025] Explanation of reference numerals in the attached drawings: 1. Chain; 11. Ear plate; 12. Chain link; 121. Straight arm; 111. Clearance part; 2. Scraper; 21. Support ear block; 211. Support plate; 212. Support seat; 213. Thrust component; 3. Pin. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0027] Embodiment 1 of this application discloses a connection assembly for a chain 1 and a scraper 2. (Refer to...) Figure 1-2 The system includes a chain 1, a scraper 2, and a pin. An ear plate 11 is welded to the side of the chain 1 near the scraper 2. A support ear block 21 is welded to the side of the scraper 2 near the chain 1. The support ear block 21 includes two support plates 211 and a support base 212. The two support plates 211 are vertically fixed to the support base 212 on the side away from the scraper 2. The two support plates 211 are arranged parallel to each other. The ear plate 11 can be inserted between the support plates 211. The pin is inserted between the ear plate 11 and the support base 212. Between the supporting lugs 21, the lug plate 11 and the supporting lugs 21 are detachably connected by the pin. A thrust member 213 is welded between the two supporting plates 211. The thrust member 213 can be a thrust column, thrust block, thrust plate or other component used to transmit thrust. A clearance portion 111 is provided on the side of the lug plate 11 near the thrust member 213. The clearance portion 111 abuts against the thrust member 213. The thrust member 213 is located on the side of the lug plate 11 with the same direction of movement as the chain 1.

[0028] This connecting assembly features an ear plate 11 on the chain 1 and a support ear block 21 on the scraper 2, consisting of two support plates 211 and a support base 212. The ear plate 11 can be inserted between the support plates 211 and detachably connected via a pin. A thrust element 213 (such as a thrust column or thrust block) is welded between the support plates 211, and a clearance portion 111 is provided on the ear plate 11 to abut against it. The thrust element 213 is located on one side of the chain 1's direction of movement. When the chain 1 moves forward, the thrust element 213 directly pushes the ear plate 11 forward, transferring part of the thrust from the scraper 2 side to the chain 1, achieving multi-path power transmission. This not only effectively distributes the load stress borne by the pin, preventing overload damage, but also enhances the stability and guidance of the connection, preventing the scraper 2 from shifting or derailing. It combines the advantages of convenient assembly, easy maintenance, smooth transmission, and long service life, thus achieving a high-strength, highly reliable, and derailment-resistant stable connection and efficient transmission between the chain 1 and the scraper 2.

[0029] The implementation principle of a connection component for a chain 1 and a scraper 2 in this application embodiment is as follows: When the chain 1 moves forward, the lug 11 can push the thrust member 213 between the two support plates 211 to move forward, thereby driving the support lug 21 to move forward. The power is effectively transmitted to the scraper 2 through the support lug 21, thereby sharing part of the force acting on the pin, thus preventing damage to the pin, thereby achieving a synergistic effect of reliable connection, stable transmission and anti-derailment between the chain 1 and the scraper 2.

[0030] Example 2 of this application, referring to Figure 3-4 The system includes a chain 1, a scraper 2, and a pin. A support lug 21 is welded to the side of the chain 1 near the scraper 2. An ear plate 11 is welded to the side of the scraper 2 near the chain 1. Each support lug 21 includes two support plates 211 and a support base 212. The two support plates 211 are vertically fixed to the support base 212 on the side away from the chain 1. The two support plates 211 are arranged parallel to each other. The ear plate 11 is inserted between the support plates 211, and the pin is inserted into the ear plate 11. Between the ear plate 11 and the support ear block 21, the ear plate 11 and the support ear block 21 are detachably connected by the pin. A thrust member 213 is welded between the support plates 211. The thrust member 213 can be a thrust column, thrust block, thrust plate or other component used to transmit thrust. A clearance portion 111 is provided on the side of the ear plate 11 near the thrust member 213. The clearance portion 111 abuts against the thrust member 213. The thrust member 213 is located on the side of the ear plate 11 opposite to the direction of movement of the chain 1.

[0031] The implementation principle of a connection component for chain 1 and scraper 2 in this application embodiment is as follows: when chain 1 moves forward, the thrust member 213 between the two support plates 211 can push the ear plate 11 to move forward, thereby driving the scraper 2 to move forward, sharing part of the force acting on the pin, preventing damage to the pin, and thus achieving the synergistic effect of reliable connection, stable transmission and anti-derailment between chain 1 and scraper 2.

[0032] Example 3 of this application, referring to Figure 5 The chain 1 is a circular link chain, which is composed of multiple links 12. The ear plate 11 is connected to the straight arm 121 of the link 12 near the scraper 2. The ear plate 11 is parallel to the horizontal plane where the link 12 is located. The support ear block 21 is connected to the scraper 2 near the chain 1.

[0033] Example 4 of this application, referring to Figure 6 The chain 1 is a circular link chain, which is composed of multiple links 12. The support plate 211 is directly connected to the side of the circular link chain near the scraper 2. The two support plates 211 are respectively connected to the two straight arms 121 of the circular link chain. The two support plates 211 are perpendicular to the vertical plane where the links 12 are located. The ear plate 11 is connected to the side of the scraper 2 near the circular link chain.

[0034] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A connecting assembly for a chain (1) and a flight (2), characterized in that, include: Supporting ear block (21); Ear plate (11); A pin is provided, which passes through the support ear block (21) and the ear plate (11) to detachably connect the support ear block (21) and the ear plate (11); A thrust member (213) is disposed on the support ear block (21) and abuts against the ear plate (11) for transmitting the thrust between the support ear block (21) and the ear plate (11).

2. A connecting assembly for a chain (1) and a flight (2) according to claim 1, characterized in that: The support ear block (21) includes two support plates (211) and a support base (212). The two support plates (211) are vertically fixed to the support base (212) on the side away from the scraper (2), and the two support plates (211) are arranged in parallel.

3. A connecting assembly for a chain (1) and a flight (2) according to claim 2, characterized in that: The ear plate (11) is inserted between the support plates (211), and the thrust member (213) is connected between the two support plates (211).

4. A connecting assembly for a chain (1) and a flight (2) according to claim 2, characterized in that: The ear plate (11) has a clearance portion (111) on the side near the thrust member (213), and the clearance portion (111) abuts against the thrust member (213).