A network chain drive structure

Abstract

A mesh chain driving structure relates to the technical field of conveying equipment. It includes a conveying mesh chain, which includes a plurality of chain links plugged in sequentially along the conveying direction, a plurality of lugs arranged at intervals on both sides of the chain link, the ends of the lugs are arc-shaped surfaces, meshing grooves are respectively arranged on the chain links, and the meshing grooves are formed by splicing an open groove arranged on the back of the chain link and a lug on an adjacent chain link on one side of the conveying direction, and gears that cooperate with the meshing grooves are arranged at both ends of the conveying mesh chain, and a tangent surface tangent to the arc-shaped surface is arranged on the arc-shaped surface of the lug, and the tangent surface and the transmission contact tooth surface of the gear are in a parallel fit state during the meshing transmission process. In the present invention, a tangent surface is arranged on the lug of the chain link, and the tangent surface and the transmission contact tooth surface of the gear remain in a parallel fit state during the meshing transmission process, and the change between the two is only the size of the contact area, which will not cause the fluctuation of the conveying surface of the conveying mesh chain, thereby effectively improving the conveying effect and extending the service life of the mesh chain.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying equipment, and in particular to a network chain driving structure. Background Art

[0002] like Figure 6 , 7 As shown, the existing conveyor network chain includes a plurality of chain links 8 which are sequentially plugged in along the conveying direction, and there are equally spaced lugs 9 on both sides of the chain links. The lugs 9 of adjacent chain links 8 are staggered and rotatably connected through a rotating shaft 10. The ends of the lugs 9 are arc-shaped surfaces, and meshing grooves 11 are respectively arranged on the chain links 8. The meshing grooves 11 are composed of an open groove arranged on the back of the chain link and the lugs 9 on the adjacent chain links on one side of the conveying direction. Therefore, during the transmission process, there is a line contact between the transmission teeth of the gear 12 and the lugs 9, resulting in that the contact position of the transmission teeth of the gear 11 with the lug plate 9 is constantly changing during the rotation process. When the gear 11 rotates to the point where the top angle of the transmission teeth contacts the lugs 9, the lugs 9 will be subjected to a force F inclined upward in the conveying direction, thereby causing the conveying surface of the conveyor network chain to jump, thereby affecting the conveying effect and service life of the conveyor network chain. Summary of the invention

[0003] The purpose of the present invention is to provide a network chain driving structure, which can effectively solve the problems in the background technology, ensure the smooth transportation of the network chain, and effectively extend the service life of the network chain.

[0004] The technical solution to achieve the above-mentioned purpose is: a mesh chain drive structure, including a conveying mesh chain, the conveying mesh chain includes a plurality of chain links sequentially plugged in along the conveying direction, with equally spaced lugs on both sides of the chain links, the lugs of adjacent chain links are staggered and rotatably connected by a rotating shaft, the ends of the lugs are arcuate surfaces, meshing grooves are formed between the lugs of the chain links and adjacent chain links, and gears that cooperate with the meshing grooves for transmission are arranged at both ends of the conveying mesh chain, characterized in that a tangent surface tangent to the arcuate surface is arranged on the arcuate surface of the lug, and the tangent surface and the transmission contact tooth surface of the gear are in a parallel fit state during the meshing transmission process.

[0005] Beneficial effects of the present invention:

[0006] The present invention provides a cut surface on the lug of the chain link, and the cut surface and the transmission contact tooth surface of the gear maintain a parallel and fitting state during the meshing transmission process. The change between the two is only the size of the contact area, which will not cause the fluctuation of the conveying surface of the conveying mesh chain, thereby effectively improving the conveying effect and extending the service life of the mesh chain.

[0007] Furthermore, metal sheets are connected to two adjacent rotating shafts. The setting of the metal sheets can drive the chain links forward while the gears drive the metal sheets to indirectly pull the adjacent rotating shafts and chain links forward through the rotating shafts, thereby reducing the stress on the chain links during the conveying process and extending the service life of the chain links.

[0008] Furthermore, a plurality of pairs of equally spaced meshing grooves are provided on the back of the chain link, each pair of meshing grooves includes two meshing grooves connected to each other, and a plurality of metal sheets are provided on two adjacent rotating shafts, and the metal sheets are respectively arranged between the two meshing grooves connected to each other.

[0009] Through the reasonable arrangement of the meshing grooves and metal sheets, the conveying process of the conveyor chain can be made more labor-saving and smoother.

[0010] Furthermore, both ends of the metal sheet are provided with through holes matching the diameter of the rotating shaft, and the metal sheet is passed through the through holes at both ends on two adjacent rotating shafts; thereby, the metal sheet can assume the role of limiting the pitch of the plastic mesh chain, while the chain links do not assume this role, thereby further reducing the force on the chain links during transmission.

[0011] Furthermore, a receiving groove for receiving a metal sheet is provided on the conveying mesh chain, and the metal sheet is cooperatively arranged in the receiving groove to ensure the flatness of the conveying surface of the conveying mesh chain.

[0012] Furthermore, the metal sheet is made of stainless steel with a hardened surface, and the stainless steel has good hardness and corrosion resistance.

[0013] Furthermore, two side walls of the engagement groove along the width direction of the chain link are arranged as inclined surfaces inclined outwards.

[0014] The present invention designs the inner walls on both sides of the meshing groove to be inclined surfaces, thereby enlarging the size of the outer opening of the meshing groove and facilitating smooth meshing between the gear and the meshing groove.

[0015] Furthermore, the bottom of the meshing groove matches the tooth width of the gear, so that the gear and the meshing groove are tightly engaged during the meshing transmission process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the present invention;

[0017] Figure 2 for Figure 1 A partial enlarged view of the middle A part;

[0018] Figure 3 It is a schematic diagram of the structure of the meshing of gears and gear teeth;

[0019] Figure 4 This is a bottom view of the conveyor chain;

[0020] Figure 5 is a schematic diagram of the structure of a metal sheet;

[0021] Figure 6 It is a structural schematic diagram of the prior art;

[0022] Figure 7 This is the principle diagram of force analysis during the existing network chain conveying process. DETAILED DESCRIPTION

[0023] like Figures 1 to 5 As shown, the present invention includes a conveying network chain 1, which includes a plurality of chain links 1.1 plugged in sequentially along the conveying direction, a plurality of lugs 1.2 on both sides of the chain links 1.1, the lugs 1.2 of adjacent chain links 1.1 are arranged alternately and rotatably connected through a rotating shaft 3, the ends of the lugs 1.2 are arcuate surfaces 1.3, and a plurality of pairs of meshing grooves 4 arranged at equal intervals are arranged on the back of the chain link 1.1, each pair of meshing grooves 4 includes two meshing grooves 4.1 connected to each other, and the meshing grooves 4.1 are composed of an open groove 4.2 arranged on the back of the chain link and a lug 1.2 on an adjacent chain link 1.1 on one side of the conveying direction.

[0024] Gears 2 are provided at both ends of the conveying network chain 1, which are respectively meshed with the meshing grooves 4.1 on the back of the link 1.1. A protrusion 1.4 is provided on the arcuate surface 1.3 of the lug 1.2, and a tangent surface 1.5 tangent to the arcuate surface 1.3 is provided on the protrusion 1.4. The tangent surface 1.5 on the protrusion 1.3 and the transmission contact tooth surface 2.1 of the gear 2 are in a parallel fitting state during the meshing transmission process. The setting of the tangent surface 1.5 on the protrusion 1.3 enables the gear 2 and the lug 1.2 to always maintain surface contact during the transmission process, avoiding the change in the force direction of the conveying network chain caused by the line contact between the top angle of the gear transmission tooth and the lug in the background technology. The only change in the contact area between the tangent surface 1.5 on the protrusion 1.3 and the transmission contact tooth surface 2.1 of the gear 2 is the size of the contact area, which will not cause the fluctuation of the conveying surface of the conveying network chain 1, thereby effectively improving the conveying effect and extending the service life of the network chain.

[0025] As a further illustration of this embodiment, the design of the 1.5 angle b of the conveyor chain section needs to be designed at different angles according to the number of teeth of the matching gear to ensure smooth cutting in and out of the chain, while taking into account the outward thrust of the tooth surface angle on the chain.

[0026] In some optional embodiments, a plurality of metal sheets 5 are connected to two adjacent rotating shafts 2. The metal sheets 5 are made of stainless steel with a hardened surface. The metal sheets 5 are respectively arranged between two mutually connected meshing grooves 4.1. The conveying network chain 1 is respectively provided with accommodating grooves 1.6 for accommodating the metal sheets 5. The metal sheets 5 are cooperatively arranged in the corresponding accommodating grooves 1.6.

[0027] In this embodiment, the arrangement of the metal sheet 5 can drive the gear 2 to drive the chain link 1.1 forward, while the rotating shaft 3 drives the metal sheet 5 to indirectly pull the adjacent rotating shaft 3 and the chain link 1.1 forward, thereby reducing the force on the chain link 1.1 during the conveying process and extending the service life of the chain link 1.1.

[0028] In some optional embodiments, both ends of the metal sheet 5 are provided with through holes 5.1 matching the diameter of the rotating shaft 2. The metal sheet 5 is passed through the through holes 5.1 at both ends and is inserted into two adjacent rotating shafts 2, so that the metal sheet 5 plays the role of limiting the pitch of the conveying network chain 1, and the chain link 1.1 does not play this role, thereby further reducing the force on the chain link 1.1 during the transmission process.

[0029] In some optional embodiments, the two side walls of the meshing groove 4 along the width direction of the chain link 1.1 are set as outwardly inclined inclined surfaces 4.2, thereby expanding the size of the outer opening of the meshing groove to facilitate smooth meshing between the gear 2 and the meshing groove 4.

[0030] In some optional embodiments, the bottom of the meshing groove 4.1 is designed to match the tooth width of the gear 2, so that the gear 2 and the meshing groove 4.1 are tightly engaged during the meshing transmission process.

Claims

1. A mesh chain driving structure, comprising a conveying mesh chain, the conveying mesh chain comprising a plurality of chain links sequentially plugged in along the conveying direction, a plurality of lugs arranged at intervals on both sides of the chain links, the lugs of adjacent chain links are arranged alternately and rotatably connected through a rotating shaft, the ends of the lugs are arc-shaped surfaces, and meshing grooves are respectively arranged on the chain links, the meshing grooves are formed by splicing an open groove arranged on the back of the chain link and a lug on an adjacent chain link on one side of the conveying direction, and gears are arranged at both ends of the conveying mesh chain to cooperate with the meshing grooves, characterized in that: A tangent surface tangent to the arcuate surface is arranged on the arcuate surface of the lug, and the tangent surface and the transmission contact tooth surface of the gear are in a parallel fitting state during the meshing transmission process.

2. A network chain drive structure according to claim 1, characterized in that: Two adjacent rotating shafts are connected with metal sheets.

3. A network chain drive structure according to claim 2, characterized in that: The back of the chain link is provided with a plurality of pairs of meshing grooves arranged at equal intervals, each pair of meshing grooves includes two meshing grooves connected to each other, and a plurality of metal sheets are provided on two adjacent rotating shafts, and the metal sheets are respectively arranged between the two meshing grooves connected to each other.

4. A network chain drive structure according to claim 2, characterized in that: Both ends of the metal sheet are provided with penetration holes matching the diameter of the rotating shaft, and the metal sheet is penetrated on two adjacent rotating shafts through the penetration holes at both ends.

5. A network chain drive structure according to claim 2, characterized in that: The conveying network chain is provided with a receiving groove for receiving the metal sheet, and the metal sheet is arranged in the receiving groove.

6. A network chain drive structure according to claim 2, characterized in that: The metal sheet is made of stainless steel with a hardened surface.

7. A network chain drive structure according to claim 1, characterized in that: The two side walls of the engagement groove along the width direction of the chain link are arranged as inclined surfaces inclined outwards.

8. A network chain drive structure according to claim 7, characterized in that: The bottom of the meshing groove matches the tooth width of the gear.

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