Inclined plane lap joint chain structure capable of preventing foreign matter from entering

Abstract

The utility model is applicable to the technical field of chain transmission equipment, in particular to an inclined plane lap joint chain structure capable of preventing foreign matters from entering, which comprises a plurality of groups of chaining components hinged in pairs, each chaining component comprises a roller, inner chain plates are arranged on two sides of the roller, a pin shaft is connected inside the roller, and the inner chain plates are connected with the pin shaft. The two sides of the outer side of the pin shaft are sleeved with sleeves, a first outer chain plate and a second outer chain plate are arranged on the two sides of the surface of the pin shaft correspondingly, an inclined baffle is arranged at one end of the second outer chain plate, and a connecting plate is arranged at one end of the first outer chain plate. According to the utility model, the inclined baffle plates with the lap joint inclined surfaces are arranged, so that an upper shielding belt is formed between every two adjacent link components in the running process of the chain, the probability that foreign matters such as dust and particulate matters enter an internal rolling structure can be effectively reduced, and the free rotation performance between the rollers and the sleeves is improved; and energy consumption and abrasion caused by sliding friction are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to chain drive equipment technical field, concretely is a kind of inclined plane lap joint chain structure of preventing foreign matter from entering. BACKGROUND

[0002] In prior art, chain is widely used in various material conveying equipment and power transmission system, especially in open transmission environment with dust concentration or frequent existence of particulate, and the traditional chain is usually composed of basic components such as rollers, pins, inner and outer chain plates. However, such structure generally lacks effective protection for the internal rolling structure of the chain (such as the hinge pair between the roller and the pin) in actual application, which causes a large amount of dust, particles and other foreign matters to easily enter between the roller and the sleeve, between the pin and the chain plate during operation, forming accumulation or inclusion, and gradually causing a series of transmission failures such as non-rotation of the roller and jamming of the hinge pair as the use time is prolonged.

[0003] Under this background, some existing chain structures attempt to use additional parts such as sealing sheets and covers for partial protection, but such structures are often complex to manufacture and difficult to assemble, and cannot be adapted to transmission scenarios with limited operating space. In addition, the integrated structure cannot be upgraded on the existing chain system. Compared with the above, how to realize the foreign matter protection function of the chain body structure without significantly increasing the structural complexity and manufacturing cost is still a technical problem to be solved in this field. SUMMARY

[0004] The purpose of the embodiment of the utility model is to provide a kind of inclined plane lap joint chain structure of preventing foreign matter from entering, to solve the technical problems mentioned in the background art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A kind of inclined plane lap joint chain structure of preventing foreign matter from entering, comprising a plurality of component pairs of hinged connection link assembly, the link assembly includes roller, and the both sides of roller are provided with inner chain plate, the inside of roller is connected with pin, and the both sides of pin outside are sleeved with sleeve, the both sides of the surface of pin are provided with first outer chain plate and second outer chain plate, and the one end of second outer chain plate is provided with inclined baffle, and the one end of first outer chain plate is provided with connecting plate.

[0007] Further, the surface of the inclined baffle is attached to the surface of the connecting plate.

[0008] Further, the included angle between the inclined baffle and the second outer chain plate is 45 degrees.

[0009] Further, the both ends of the pin are connected with open heart pin.

[0010] Further, the connecting plate is provided with a first threaded hole penetrating through both end surfaces, the inclined baffle is provided with a second threaded hole penetrating through both end surfaces, one end of the first outer chain plate is provided with a threaded groove, and the threaded groove, the first threaded hole and the second threaded hole are jointly connected with a threaded rod inside.

[0011] The inclined baffle is detachably connected to the first outer chain plate through cooperation of the threaded rod, the threaded groove, the first threaded hole and the second threaded hole.

[0012] Further, the second threaded hole is internally provided with a receiving groove, and the shape of the receiving groove is matched with the shape of the head of the threaded rod.

[0013] The inclined surface lap joint chain structure provided by the utility model has the following beneficial effects:

[0014] By arranging the inclined baffle with the lap joint inclined surface, the upper shielding belt is formed between the adjacent link assemblies during the operation of the chain, the probability of foreign matters such as dust and particulate matter entering the internal rolling structure is effectively reduced, the free rotation performance between the roller and the sleeve is improved, and the energy consumption and abrasion caused by sliding friction are reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a structural schematic view of the inclined surface lap joint chain structure.

[0016] Figure 2 It is a side plan view of the link assembly in the inclined surface lap joint chain structure.

[0017] Figure 3 It is a side sectional view of the inclined baffle, the connecting plate and the first outer chain plate in the inclined surface lap joint chain structure.

[0018] In the figure: 1, first outer chain plate; 2, inner chain plate; 3, inclined baffle; 4, cotter pin; 5, pin shaft; 6, sleeve; 7, connecting plate; 8, threaded rod; 9, receiving groove; 10, first threaded hole; 11, threaded groove; 12, second threaded hole; 13, roller; 14, second outer chain plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and examples. It is a structural schematic view of the inclined surface lap joint chain structure.

[0016] Figure 2 It is a side plan view of the link assembly in the inclined surface lap joint chain structure.

[0017] Figure 3 It is a side sectional view of the inclined baffle, the connecting plate and the first outer chain plate in the inclined surface lap joint chain structure.

[0018] In the figure: 1, first outer chain plate; 2, inner chain plate; 3, inclined baffle; 4, cotter pin; 5, pin shaft; 6, sleeve; 7, connecting plate; 8, threaded rod; 9, receiving groove; 10, first threaded hole; 11, threaded groove; 12, second threaded hole; 13, roller; 14, second outer chain plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and examples. It is a structural schematic view of the inclined surface lap joint chain structure.

[0016] Figure 2 It is a side plan view of the link assembly in the inclined surface lap joint chain structure.

[0017] Figure 3 It is a side sectional view of the inclined baffle, the connecting plate and the first outer chain plate in the inclined surface lap joint chain structure.

[0018] In the figure: 1, first outer chain plate; 2, inner chain plate; 3, inclined baffle; 4, cotter pin; 5, pin shaft; 6, sleeve; 7, connecting plate; 8, threaded rod; 9, receiving groove; 10, first threaded hole; 11, threaded groove; 12, second threaded hole; 13, roller; 14, second outer chain plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and examples. It is a structural schematic view of the inclined surface lap joint chain structure.

[0016] Figure 2 It is a side plan view of the link assembly in the inclined surface lap joint chain structure.

[0017] Figure 3 It is a side sectional view of the inclined baffle, the connecting plate and the first outer chain plate in the inclined surface lap joint chain structure.

[0018] In the figure: 1, first outer chain plate; 2, inner chain plate; 3, inclined baffle; 4, cotter pin; 5, pin shaft; 6, sleeve; 7, connecting plate; 8, threaded rod; 9, receiving groove; 10, first threaded hole; 11, threaded groove; 12, second threaded hole; 13, roller; 14, second outer chain plate. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further described in detail below by combining with the drawings and examples.

[0020] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0021] like Figures 1-2 As shown in the figure, the inclined overlapping chain structure for preventing foreign object entry provided by this utility model embodiment includes several hinged connecting components. Each connecting component includes a roller 13, with inner chain plates 2 on both sides of the roller 13. A pin 5 is connected inside the roller 13, and sleeves 6 are fitted onto both outer sides of the pin 5. A first outer chain plate 1 and a second outer chain plate 14 are respectively provided on both sides of the pin 5 surface. A slanted baffle 3 is provided at one end of the second outer chain plate 14, and a connecting plate 7 is provided at one end of the first outer chain plate 1. The surface of the slanted baffle 3 is in contact with the surface of the connecting plate 7. The included angle between the slanted baffle 3 and the second outer chain plate 14 is 20 degrees. Open pins 4 are connected to both ends of the pin 5.

[0022] In one embodiment of this utility model, a sloping overlapping chain structure for preventing foreign object ingress is provided, comprising several sets of link components hinged together in a paired manner. Each link component includes a roller 13, with inner chain plates 2 respectively provided on both sides of the roller 13. A pin 5 passes through the inside of the roller 13, and a sleeve 6 is sleeved on the outside of the pin 5. The sleeve 6 is located between the roller 13 and the inner chain plate 2 to form a rotational fit structure. A first outer chain plate 1 and a second outer chain plate 14 are fixedly connected to both ends of the pin 5, wherein a sloping baffle 3 extends from one end of the second outer chain plate 14, and a connecting plate 7 is provided at one end of the first outer chain plate 1. The surface of the sloping baffle 3 is in contact with the outer surface of the connecting plate 7 in the adjacent link component, and the sloping baffle 3 and the second outer chain plate 14 form a 20° angle. Both ends of the pin 5 are connected to open-end pins 4 for limiting and preventing axial displacement.

[0023] The inclined baffle 3 and the connecting plate 7 form a covering structure through an angular fit. During chain operation, this structure prevents foreign objects from entering the area between the roller 13, pin 5, and sleeve 6 from above the chain, thus avoiding the accumulation of foreign objects in the hinge pair and preventing problems such as roller not rotating or pin jamming. This structure requires no additional seals; the chain protection function is achieved solely through the optimized geometry of the outer chain plate, making it suitable for open chain drive environments.

[0024] By incorporating a sloping baffle 3 with overlapping ramps, an upper shielding zone is formed between adjacent link components during chain operation. This effectively reduces the probability of foreign objects such as dust and particles entering the internal rolling structure, improves the free rotation performance between the rollers and bushings, and reduces energy consumption and wear caused by sliding friction. Simultaneously, by reducing interference from foreign objects, the overall chain's operational stability and service life are improved, and the failure rate of the chain drive system due to chain jamming or derailment is reduced, demonstrating promising industrial application prospects and adaptability.

[0025] likeFigure 3 As shown, in one embodiment of the present invention, the connecting plate 7 has a first threaded hole 10 that penetrates both ends of the surface, the inclined baffle 3 has a second threaded hole 12 that penetrates both ends of the surface, and one end of the first outer chain plate 1 has a threaded groove 11. The threaded groove 11, the first threaded hole 10 and the second threaded hole 12 are connected to the threaded rod 8 by meshing.

[0026] The inclined baffle 3 is detachably connected to the first outer chain plate 1 through the cooperation of the threaded thin rod 8, the threaded groove 11, the first threaded hole 10 and the second threaded hole 12.

[0027] In this embodiment, the connecting plate 7 has a first threaded hole 10 penetrating both ends of the surface, the inclined baffle 3 has a second threaded hole 12 penetrating both ends of the surface, and one end of the first outer chain plate 1 is provided with a threaded groove 11. The threaded groove 11, the first threaded hole 10 and the second threaded hole 12 are connected together by a threaded rod 8. The threaded rod 8 passes through the three threaded structures and is used to detachably install the inclined baffle 3 to the end of the first outer chain plate 1, thereby realizing the overlapping fit between the inclined baffle 3 and the connecting plate 7.

[0028] With this structural design, the inclined baffle 3 is no longer integrally formed with the outer chain plate, but is assembled and connected as an independent component via threaded fastening. This allows the inclined baffle 3, connecting plate 7, and first outer chain plate 1 to be processed, transported, assembled, and replaced as independent components, reducing the processing complexity of parts and the difficulty of assembly coordination, and improving the versatility and modularity of the entire chain structure. Especially in industrial applications, when some chain components are worn or damaged, the damaged parts can be quickly located and replaced individually, avoiding the need for disassembly of the entire chain and significantly improving maintenance efficiency.

[0029] Meanwhile, this improved structure is an extension and upgrade of the original inclined overlapping chain structure. While maintaining the foreign object protection performance, by adding threaded connection components, inclined baffle components can be directly added to the traditional chain structure, so that the original chain has a protective function. It has good backward compatibility and on-site modification adaptability, which is conducive to improving and upgrading the old chain structure without replacing the whole chain.

[0030] In this embodiment, a receiving groove 9 is provided inside the second threaded hole 12, and the shape of the receiving groove 9 is adapted to the head shape of the threaded rod 8. It is used to limit and store the head of the threaded rod 8 when it is tightened. Through this structural design, after the connection operation is completed, the head of the threaded rod 8 can be completely embedded in the receiving groove 9, thereby avoiding problems such as interference, bumping, or foreign object accumulation caused by the exposed head of the threaded rod, and further improving the compactness and smoothness of the chain structure.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sloping overlapping chain structure for preventing foreign object ingress, comprising a plurality of hinged connecting components, characterized in that, The link assembly includes a roller (13), and inner chain plates (2) are provided on both sides of the roller (13). A pin (5) is connected inside the roller (13), and sleeves (6) are sleeved on both sides of the outer side of the pin (5). A first outer chain plate (1) and a second outer chain plate (14) are respectively provided on both sides of the surface of the pin (5), and a slanted baffle (3) is provided at one end of the second outer chain plate (14), and a connecting plate (7) is provided at one end of the first outer chain plate (1).

2. The inclined overlapping chain structure for preventing foreign object entry according to claim 1, characterized in that, The surface of the inclined baffle (3) is in contact with the surface of the connecting plate (7).

3. The inclined overlapping chain structure for preventing foreign object entry according to claim 2, characterized in that, The angle between the inclined baffle (3) and the second outer chain plate (14) is 20 degrees.

4. The inclined overlapping chain structure for preventing foreign object entry according to claim 1, characterized in that, Both ends of the pin (5) are connected to open pins (4).

5. The inclined overlapping chain structure for preventing foreign object entry according to claim 1, characterized in that, The connecting plate (7) has a first threaded hole (10) penetrating both ends of the surface, the inclined baffle (3) has a second threaded hole (12) penetrating both ends of the surface, and one end of the first outer chain plate (1) has a threaded groove (11). The threaded groove (11), the first threaded hole (10) and the second threaded hole (12) are connected together by a threaded rod (8). The inclined baffle (3) is detachably connected to the first outer chain plate (1) through the cooperation of the threaded rod (8), the threaded groove (11), the first threaded hole (10) and the second threaded hole (12).

6. The inclined overlapping chain structure for preventing foreign object entry according to claim 5, characterized in that, The second threaded hole (12) has a receiving groove (9) inside, and the shape of the receiving groove (9) is adapted to the head shape of the threaded rod (8).

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