Light arc wheel variable hanging pitch conveying chain

Abstract

The utility model discloses a light arc wheel variable hanging pitch conveying chain which comprises a plurality of sets of middle connecting assemblies and chain pieces connected between the middle connecting assemblies, the middle connecting assemblies are connected with the ends of the chain pieces, installation holes are formed in the chain pieces, hanging pieces are connected to the installation holes, and the hanging pieces are connected with the middle connecting assemblies. The middle connecting assembly comprises a middle joint and two connecting shafts, the middle joint comprises two first bearings which are vertically connected, oil grooves are formed in the first bearings, the connecting shafts penetrate through the first bearings, the two ends of the connecting shafts penetrate through through holes formed in the ends of the chain pieces correspondingly and then are connected with second bearings, and external threads are formed in the outer walls of the ends of the connecting shafts; and a locking nut is in threaded connection with the rod body of the connecting shaft on the outer side of the second bearing. According to the utility model, the structure is simple, the disassembly and the maintenance are convenient, the proper chain sheets can be selected to adjust the hanging distance according to the change of the shape of the hanger, the hanging pitch can be changed under the condition that the chain pitch is not changed, the weight is light, and the production cost is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of chains, in particular to a light-weight arc wheel variable hanging pitch conveying chain. Background Art

[0002] Chains are generally metal links or rings, mostly used for mechanical transmission and traction, such as chains used for mechanical transmission. Chains generally include four series: transmission chains, conveyor chains, traction chains, and special professional chains. With the development of society and the advancement of science and technology, the level of industrial automation is getting higher and higher. Among them, industrial production lines are an important part of industrial automation, and conveyor chains are very important transmission components on industrial production lines.

[0003] The baggage carousel currently used in the baggage handling system of the airport has the links of the traction chain connected by a pin shaft to form a closed loop. In order to achieve the adjustable pitch of the links of the closed loop traction chain, European patent document EP0629566A2 discloses a structure in which adjacent links are connected by a pin shaft with an eccentric structure, and the adjustable link pitch is achieved by adjusting the relative installation position of the pin shaft of the eccentric structure. In addition, European patent document EP0753474A1 also discloses a structure in which adjacent links are connected by a pin shaft with an eccentric structure, and the adjustable link pitch is achieved by adjusting the relative installation position of the spacer of the eccentric structure. Both structures change the link pitch adjustment by changing the eccentric parts, so as to achieve the variable hanging pitch, which is very inconvenient, and has high requirements for the manufacturing of the eccentric parts. During installation, the installation requirements are also high, and the disassembly and maintenance are troublesome. In addition, the existing chains are heavy, and the production requires more raw materials, and the production cost will be relatively high. Utility Model Content

[0004] The utility model aims to provide a light arc wheel variable hanging pitch conveying chain to solve the above problems.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] The utility model discloses a light-weight arc wheel variable suspension pitch conveying chain, comprising a plurality of groups of intermediate connection components and chain plates connected between the intermediate connection components, wherein the intermediate connection components are connected to the ends of the chain plates, the chain plates are provided with mounting holes, the mounting holes are connected with hanging pieces, the intermediate connection components comprise an intermediate section and two connecting shafts, the intermediate section comprises two vertically connected first bearings, the first bearings are provided with an oil groove, the connecting shaft passes through the first bearings, the two ends of the connecting shaft respectively pass through the through holes provided at the ends of the chain plates and are connected to the second bearings, the end outer wall of the connecting shaft is provided with an external thread, and a locking nut is threadedly connected to the rod body of the connecting shaft outside the second bearing.

[0007] Furthermore, the chain plates include transverse chain plates and vertical chain plates, and the transverse chain plates and vertical chain plates are used alternately between the respective intermediate connecting components. The hangers installed on the vertical chain plates are vertical plates, and the hangers installed on the transverse chain plates are L-shaped plates.

[0008] Furthermore, the connecting shaft is connected to the first bearing via a sleeve.

[0009] Furthermore, both ends of the outer wall of the shaft sleeve are provided with a clamping groove, and the chain piece is clamped in the clamping groove.

[0010] Furthermore, the second bearing is a special-shaped bearing, and the width of the inner ring of the second bearing is greater than the width of the outer ring, so that the second bearing has a T-shaped outer shape.

[0011] Compared with the prior art, the beneficial technical effects of the utility model are:

[0012] The utility model has a simple structure and is easy to disassemble and maintain. It can select suitable chain pieces to adjust the hanging spacing according to the change of the hanger appearance. When the chain pitch remains unchanged, the hanging pitch can be changed. It is also light in weight and greatly reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model will be further described below in conjunction with the accompanying drawings.

[0014] Figure 1 This is the front view of the utility model lightweight arc wheel variable hanging pitch conveyor chain;

[0015] Figure 2 This is a schematic diagram of the side structure of the utility model light arc wheel variable hanging pitch conveyor chain;

[0016] Figure 3 is a cross-sectional view of an intermediate connection component;

[0017] Figure 4 Schematic diagram of the shaft sleeve structure;

[0018] Figure 5 It is a schematic diagram of the structure of the middle section;

[0019] Explanation of the reference numerals: 1. intermediate section; 101. first bearing; 2. connecting shaft; 3. oil tank; 4. second bearing; 5. locking nut; 6. mounting hole; 7. hanging piece; 8. horizontal chain piece; 9. vertical chain piece; 10. bushing; 11. slot. DETAILED DESCRIPTION

[0020] like Figure 1-5As shown, a light arc wheel variable suspension pitch conveyor chain includes a plurality of groups of intermediate connection components and chain plates connected between each of the intermediate connection components, wherein the intermediate connection components are connected to the ends of the chain plates, and mounting holes 6 are opened on the chain plates, and the mounting holes 6 are connected to hanging parts 7.

[0021] The intermediate connecting component includes an intermediate section 1 and two connecting shafts 2. The intermediate section 1 includes two vertically connected first bearings 101. The first bearing 101 is provided with an oil groove 3. The connecting shaft 2 passes through the first bearing 101 and is connected to the first bearing 101 through a sleeve 10. The outer walls of both ends of the sleeve 10 are provided with a slot 11. The chain piece is clamped in the slot 11. The two ends of the connecting shaft 2 are respectively passed through the through holes opened at the ends of the chain piece and are connected to the second bearing 4. The second bearing 4 is a special-shaped bearing. The inner ring width of the second bearing 4 is greater than the outer ring width, so that the second bearing 4 has a T-shaped appearance. The outer wall of the end of the connecting shaft 2 is provided with an external thread, and a locking nut 5 is threadedly connected to the rod body of the connecting shaft 2 outside the second bearing 4.

[0022] The chain plates include transverse chain plates 8 and vertical chain plates 9, which are used alternately between the intermediate connecting components. The hanger 7 installed on the vertical chain plates 9 is a vertical plate, and the hanger 7 installed on the transverse chain plates 8 is an L-shaped plate.

[0023] The embodiments described above are only descriptions of the preferred methods of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope determined by the claims of the present invention.

Claims

1. A light-duty arc wheel variable hanging pitch conveyor chain, characterized in that: The invention comprises a plurality of groups of intermediate connection components and chain plates connected between the intermediate connection components. The intermediate connection components are connected to the ends of the chain plates. The chain plates are provided with mounting holes (6). The mounting holes (6) are connected to the hanging parts (7). The intermediate connection components comprise an intermediate section (1) and two connecting shafts (2). The intermediate section (1) comprises two vertically connected first bearings (101). The first bearings (101) are provided with oil grooves (3). The connecting shafts (2) penetrate the first bearings (101). The two ends of the connecting shafts (2) respectively penetrate the through holes provided at the ends of the chain plates and are connected to the second bearings (4). The end outer wall of the connecting shaft (2) is provided with external threads. The rod body of the connecting shaft (2) outside the second bearing (4) is threadedly connected with a locking nut (5).

2. The light arc wheel variable hanging pitch conveyor chain according to claim 1 is characterized by: The chain plates include transverse chain plates (8) and vertical chain plates (9), and the transverse chain plates (8) and vertical chain plates (9) are used alternately between the intermediate connection components. The hanging piece (7) installed on the vertical chain plate (9) is a vertical plate, and the hanging piece (7) installed on the transverse chain plate (8) is an L-shaped plate.

3. The light arc wheel variable hanging pitch conveyor chain according to claim 1 is characterized by: The connecting shaft (2) is connected to the first bearing (101) via a shaft sleeve (10).

4. The light arc wheel variable hanging pitch conveyor chain according to claim 3 is characterized by: The outer walls at both ends of the shaft sleeve (10) are provided with clamping grooves (11), and the chain pieces are clamped in the clamping grooves (11).

5. The light arc wheel variable hanging pitch conveyor chain according to claim 1 is characterized by: The second bearing (4) is a special-shaped bearing; the width of the inner ring of the second bearing (4) is greater than the width of the outer ring, so that the second bearing (4) has a T-shaped appearance.

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