Middle-pitch large wood conveying chain with sharp tooth structure formed by two-stage accessories

Abstract

A medium-pitch large wood conveying chain with a sharp tooth structure formed by two-stage accessories belongs to the technical field of chain transmission, comprises a sharp tooth type wood conveying chain body, and is characterized in that the sharp tooth type wood conveying chain body comprises sharp tooth outer chain plates and sharp tooth inner chain plates. Transverse second-level accessories are welded to the top ends of the oppositely-arranged sharp-tooth outer chain plates, the adjacent second-level accessories form an additionally-arranged sharp-tooth structure, the large wood is clamped between the two second-level accessories through the additionally-arranged sharp-tooth structures, and conveying of the large wood is achieved under the condition that the small pitch is kept. Stable conveying of large wood is guaranteed, the tensile strength and the wear resistance of the chain are considered, the functionality and the service life of the chain are guaranteed, and meanwhile, compared with an existing large wood sharp-tooth wood conveying chain, the pitch is remarkably reduced, the conveying efficiency can be improved, the size of the chain wheel can be reduced, and installation convenience is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of chain transmission, and in particular relates to a medium-pitch large-scale wood conveying chain with a sharp tooth structure formed by secondary accessories. Background Art

[0002] Existing wood conveyor chains, such as Figure 1 , 2 As shown, the wood is mainly carried by the sharp-toothed chain plate, wherein the sharp teeth prevent the wood from rolling, and the wood is effectively transported through the operation of the chain.

[0003] In actual use, the existing wood conveyor chain has the following problems:

[0004] 1. The small-sized wood conveying chain has small sharp teeth, which are easy to roll when conveying large wood; the chain plate is thin, and the chain tensile strength is weak. It is insufficient to withstand the impact of materials during the conveying of large wood. Under long-term material impact and force, the sharp tooth chain plate tooth tip will break, or the chain will break.

[0005] 2. Medium-sized wood conveyor chains have small teeth, so they are prone to rolling when conveying large wood and cannot operate effectively.

[0006] 3. Large-sized wood conveying chains are only suitable for lower speed conditions due to the large pitch of the sharp-toothed chain plates, and cannot meet the customer's speed requirements. The wear resistance of the chain is greatly reduced, affecting its service life. In addition, some customers' equipment transmission systems have limited reserved space and cannot install larger-sized sprockets. Summary of the invention

[0007] In response to the problems described in prior arts 1-3, the present invention discloses a medium-pitch large-scale wood conveying chain with a sharp tooth structure composed of secondary accessories. On the basis of realizing the effective transportation of large wood, the wood conveying chain reduces the pitch, greatly improves the conveying speed of the conveying chain, reduces the size of the sprocket, and improves the wear resistance and service life of the chain.

[0008] To achieve the above purpose, the technical solution of the present invention is:

[0009] A medium pitch large wood conveying chain with a sharp tooth structure formed by secondary accessories, comprising a sharp tooth type wood conveying chain body, wherein the sharp tooth type wood conveying chain body comprises a sharp tooth outer chain plate and a sharp tooth inner chain plate, and is characterized in that the top ends of the oppositely arranged sharp tooth outer chain plates are welded with transversely arranged secondary accessories, and adjacent secondary accessories form an additional sharp tooth structure, and the large wood is clamped between two secondary accessories by the additional sharp tooth structure, so that the transportation of large wood is achieved while maintaining a small pitch.

[0010] Preferably, the pointed-tooth wood conveying chain body also includes a pin shaft, a sleeve, and a roller. The two pointed-tooth inner chain plates are relatively arranged and connected by two sleeves, and the two ends of the two sleeves are respectively interference fit with a connecting hole of the corresponding pointed-tooth inner chain plate. The roller is sleeved outside the sleeve and is clearance fit with the sleeve. The inner chain plate, sleeve, and roller constitute an inner chain link; the two pointed-tooth outer chain plates are relatively arranged and connected by two pin shafts, and the two ends of the two pin shafts are respectively interference fit with the connecting holes of the corresponding pointed-tooth outer chain plates. The pointed-tooth outer chain plates and the pin shaft constitute an outer chain link. The inner chain links and outer chain links are alternately linked, and the pin shaft passes through the sleeves of adjacent inner chain links and is clearance fit with the sleeves.

[0011] Preferably, the pointed tooth inner link plate and the pointed tooth outer link plate have the same structure, and the top extends upward to form an inverted V-shaped structure. A positive V-shaped groove is opened at the top of the inverted V-shaped structure, and a secondary accessory is welded between the V-shaped grooves of the two opposite pointed tooth outer link plates.

[0012] Preferably, the secondary attachment is a solid iron block with a rectangular structure, the angle of the V-shaped groove is 90°, the side edge 1 of the solid iron block is tightly fitted with the inner edge of the V-shaped groove, the surfaces of the solid iron blocks on both sides of the side edge 1 are tightly fitted with the groove walls of the V-shaped groove and welded, the side edge 2 of the solid iron block opposite to the side edge 1 forms a ridge-shaped tooth tip, the two adjacent solid iron blocks and the V-shaped groove on the top of the sharp-tooth inner chain plate between them together constitute an additional sharp-tooth structure, thereby achieving support for the bottom of large logs and constraints on both sides.

[0013] Preferably, the inner edge of the V-shaped groove and each side edge of the secondary attachment are chamfered by R1, the corners at both ends of the side of the secondary attachment are chamfered by C1, the side wall of the V-shaped groove has a bright band covering at least 80% of the area, and one end of the secondary attachment is flush with the outer surface of the pointed tooth outer link plate on the same side.

[0014] Preferably, the width of the side surface of the secondary attachment is the same as the width of the wall of the V-shaped groove.

[0015] Preferably, the pointed tooth inner link plate and the pointed tooth outer link plate both include a chain plate mother body, an inverted V-shaped structure is integrally formed at the top of the chain plate mother body, an upright V-shaped groove is opened at the top of the inverted V-shaped structure, and the height of the bottom of the V-shaped groove is higher than the upper end of the chain plate mother body.

[0016] The beneficial effects of the medium pitch large wood conveying chain with a sharp tooth structure formed by a secondary attachment of the present invention are as follows:

[0017] 1. The present invention is based on the improvement of a medium-sized wood conveying chain with accessories, that is, on the basis of a medium-sized sharp-tooth wood conveying chain, a secondary accessory with a rectangular structure is added to form a chain for conveying large wood, thereby ensuring the stable conveying of large wood, taking into account the tensile strength and wear resistance of the chain, ensuring the functionality and service life of the chain, and at the same time, compared with the existing large-scale sharp-tooth wood conveying chain, the pitch is significantly reduced, the conveying efficiency can be improved, the sprocket size can be reduced, and the convenience of installation is improved.

[0018] 2. Welding the secondary attachment between the V-grooves of the opposite sharp-tooth outer chain plates can effectively enhance the strength of the chain. Changing the plate-shaped tooth tips of the prior art into ridge-shaped tooth tips can effectively improve the strength of the tooth portion, and the contact surface with the wood is changed from the plate-shaped tooth tips to the entire edge of the secondary attachment, thereby increasing the contact surface with the wood and providing stronger anti-destruction capability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of a sharp-toothed wood conveying chain of the prior art.

[0020] Figure 2 It is a top view of a prior art sharp-toothed wood conveying chain.

[0021] Figure 3 It is a front view structural schematic diagram of the present invention.

[0022] Figure 4 It is a schematic diagram of the top structure of the present invention.

[0023] Figure 5 It is a schematic diagram of the chamfering of the secondary attachment (the left figure shows that the corners at both ends of the side of the secondary attachment are chamfered by C1; the right figure shows that all side edges of the secondary attachment are chamfered by R1).

[0024] Figure 6 It is a comparison diagram of the pitch of the present invention (left) and the pitch of the large timber conveying chain of the prior art (right).

[0025] Figure 7 It is a top view comparison diagram of the present invention (left) and the large timber conveying chain of the prior art (right).

[0026] Figure 8 It is a schematic diagram of the outer shape design of the pointed inner / outer chain plates of the present invention.

[0027] The figure shows: 1-pointed tooth inner link plate, 2-pointed tooth outer link plate, 3-secondary attachment, 4-pin shaft, 5-sleeve, 6-roller, 7-V-groove, 8-link plate body, 81-upper end of link plate body, 82-lower end of link plate body. DETAILED DESCRIPTION

[0028] The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0029] The following embodiments may be understood as individually expressing a part of a local structure or method of the present invention, or may be understood as a combination of the embodiments to explain the connotation of a larger structure or method of the present invention.

[0030] Example 1

[0031] A medium pitch large wood conveying chain with a secondary attachment forming a sharp tooth structure, such as Figure 3-5 As shown, it includes a sharp-toothed wood conveying chain body, which includes a sharp-toothed outer chain plate 2 and a sharp-toothed inner chain plate 1. The top ends of the relatively arranged sharp-toothed outer chain plates 2 are welded with transversely arranged secondary accessories 3, and adjacent secondary accessories 3 constitute an additional sharp-tooth structure. By adding the sharp-tooth structure, large wood is clamped between two secondary accessories 3, and the transportation of large wood is achieved while maintaining a small pitch.

[0032] In this embodiment, the sharp-toothed wood conveying chain body can be a sharp-toothed wood conveying chain disclosed in the prior art. By welding the secondary attachments between the tops of the relatively arranged sharp-toothed outer chain plates, the adjacent secondary attachments can form an additional sharp-toothed structure. By adding the sharp-toothed structure, the large wood is stuck between the two secondary attachments, and the conveying of the large wood is achieved while maintaining a small pitch. The smaller pitch here is compared with the pitch of the large sharp-toothed wood conveying chain. Among them, the large sharp-toothed wood conveying chain of the prior art has a larger pitch, usually 50.8mm. Due to the large pitch, the running speed of the chain is very slow when the sprocket is driven, which is difficult to meet the use requirements. The present invention welds the secondary attachments between the tops of the relatively adherent outer chain plates of the outer chain links, so that the additional sharp-toothed structure formed can complete the rapid conveying of large wood while maintaining a small pitch. The pitch of the present invention can reach 38.1mm, which is significantly reduced compared with the pitch of the large sharp-toothed wood conveying chain of the prior art, thereby also realizing the miniaturization of the sprocket, which can effectively improve the conveying speed of large wood.

[0033] Example 2

[0034] like Figure 3 , 4As shown, the pointed-tooth wood conveying chain body also includes a pin 4, a sleeve 5, and a roller 6. Two pointed-tooth inner chain plates 1 are relatively arranged and connected by two sleeves 5. The two ends of the two sleeves 5 are respectively interference fit with a connecting hole of the corresponding pointed-tooth inner chain plate 1. The roller 6 is sleeved outside the sleeve 5 and has a clearance fit with the sleeve 5. The inner chain plate 1, sleeve 5, and roller 6 constitute an inner chain link; two pointed-tooth outer chain plates 2 are relatively arranged and connected by two pins 4. The two ends of the two pins 4 are respectively interference fit with the connecting holes of the corresponding pointed-tooth outer chain plates 2. The pointed-tooth outer chain plates 2 and the pins 4 constitute an outer chain link. The inner chain links and the outer chain links are alternately linked. The pins 4 pass through the sleeves 5 of adjacent inner chain links and have a clearance fit with the sleeves 5.

[0035] This embodiment provides the preferred structure of the sharp-toothed wood conveying chain body of the present invention.

[0036] Example 3

[0037] like Figure 3-5 As shown, the pointed tooth inner link plate 1 and the pointed tooth outer link plate 2 have the same structure, and the top extends upward to form an inverted V-shaped structure. A positive V-shaped groove 7 is opened at the top of the inverted V-shaped structure, and a secondary attachment 3 is welded between the V-shaped grooves 7 of the two opposite pointed tooth outer link plates.

[0038] like Figure 3-5 As shown, the secondary attachment 3 is a solid iron block of a rectangular structure, the angle of the V-shaped groove 7 is 90°, the side edge 1 of the solid iron block is tightly fitted with the inner edge of the V-shaped groove 7, the solid iron block surfaces on both sides of the side edge 1 are tightly fitted with the groove wall of the V-shaped groove 7 and welded, the side edge 2 of the solid iron block opposite to the side edge 1 forms a ridge-shaped tooth tip, the two adjacent solid iron blocks and the V-shaped groove 7 on the top of the sharp-tooth inner chain plate between them together form an additional sharp-tooth structure, thereby achieving the support of the bottom of the large log and the constraint on both sides.

[0039] In this embodiment, the secondary attachment is welded between the V-grooves of the opposite pointed tooth outer link plates, which can effectively enhance the strength of the chain. The plate-like tooth tips of the prior art are changed into ridge-like tooth tips, which can effectively improve the strength of the tooth portion. The contact surface with the wood is changed from the plate-like tooth tips to the entire edge of the secondary attachment, thereby increasing the contact surface with the wood and providing stronger resistance to damage.

[0040] Example 4

[0041] like Figure 3-5 As shown, the inner edges of the V-shaped groove 7 and the side edges of the secondary attachment 3 are chamfered by R1, the corners at both ends of the side of the secondary attachment 3 are chamfered by C1, the side wall of the V-shaped groove 7 has a bright band of at least 80% area, and one end of the secondary attachment 3 is flush with the outer surface of the sharp tooth outer link plate 2 on the same side to avoid interference with the equipment casing.

[0042] like Figure 3 As shown, the width of the side surface of the secondary attachment 3 is the same as the width of the groove wall of the V-shaped groove 7, and is preferably 12 mm in this embodiment.

[0043] like Figure 7 As shown, the pointed tooth inner link plate and the pointed tooth outer link plate both include a link plate matrix, an inverted V-shaped structure is integrally formed at the top of the link plate matrix, a positive V-shaped groove is opened at the top of the inverted V-shaped structure, and the height of the bottom of the V-shaped groove is higher than the upper end of the link plate matrix; by retaining a certain impact buffer distance between the bottom of the V-shaped groove and the upper end of the link plate matrix, the influence of vertical impact on the physical properties of the link plate matrix is ​​weakened.

[0044] Working principle of the present invention:

[0045] 1. The present invention is based on the improvement of a medium-sized wood conveying chain with accessories, that is, on the basis of a medium-sized sharp-tooth wood conveying chain, a secondary accessory with a rectangular structure is added to form a chain for conveying large wood, thereby ensuring the stable conveying of large wood, taking into account the tensile strength and wear resistance of the chain, ensuring the functionality and service life of the chain, and at the same time, compared with the existing large-scale sharp-tooth wood conveying chain, the pitch is significantly reduced, the conveying efficiency can be improved, the sprocket size can be reduced, and the convenience of installation is improved.

[0046] 2. The root of the V-shaped groove is designed to be R1 fillet, and the side end surface of the V-shaped groove has a bright band of at least 80% area to ensure a close fit with the secondary attachment and a firm welding. This V-shaped groove plays a beneficial role in preventing the secondary attachment from falling off.

[0047] 3. The four long edges and corners of the square column secondary attachment are made into R1 fillets, which are completely matched with the root of the V-groove of the sharp tooth chain plate; the end face is a square with a side length of 12mm, which is also completely matched with the opening of the V-groove. This structure makes the bottom of the secondary attachment contact with the root of the V-groove. When the secondary attachment is subjected to vertical force, the root is stressed, reducing the indirect force on both sides of the V-groove of the sharp tooth chain plate. When the secondary attachment is subjected to horizontal force, both sides of the V-groove can also play a certain reaction force, thereby improving the overall anti-destructive strength of the chain; the end face of the secondary attachment is made into C1 fillet, which is beneficial to enhance the welding strength.

[0048] 4. The V-shaped sharp teeth designed in the inner chain plate of the sharp teeth also play an effective stabilizing role in the transportation of large wood. Together with the adjacent secondary accessories, it constitutes an additional sharp tooth structure.

Claims

1. A medium pitch large wood conveying chain with a sharp tooth structure formed by secondary accessories, characterized by: The utility model comprises a sharp-toothed wood conveying chain body, wherein the sharp-toothed wood conveying chain body comprises a sharp-toothed outer chain plate and a sharp-toothed inner chain plate, and is characterized in that a transversely arranged secondary attachment is welded to the top end of the oppositely arranged sharp-toothed outer chain plates, and adjacent secondary attachments constitute an additional sharp-toothed structure. By adding the sharp-toothed structure, large wood is clamped between two secondary attachments, and the transportation of large wood is realized while maintaining a small pitch.

2. A medium pitch large wood conveying chain with a sharp tooth structure formed by secondary attachments as claimed in claim 1, characterized in that: The pointed-tooth wood conveying chain body also includes a pin shaft, a sleeve, and a roller. Two pointed-tooth inner chain plates are arranged opposite to each other and connected by two sleeves. The two ends of the two sleeves are respectively interference fit with a connecting hole of the corresponding pointed-tooth inner chain plate. The roller is sleeved outside the sleeve and is clearance fit with the sleeve. The inner chain plate, sleeve, and roller constitute an inner chain link; two pointed-tooth outer chain plates are arranged opposite to each other and connected by two pin shafts. The two ends of the two pin shafts are respectively interference fit with the connecting holes of the corresponding pointed-tooth outer chain plates. The pointed-tooth outer chain plates and the pin shaft constitute an outer chain link. The inner chain link and the outer chain link are alternately linked. The pin shaft passes through the sleeve of the adjacent inner chain link and is clearance fit with the sleeve.

3. A medium pitch large wood conveying chain with a sharp tooth structure formed by secondary attachments as claimed in claim 2, characterized in that: The pointed tooth inner link plate and the pointed tooth outer link plate have the same structure, and the top extends upward to form an inverted V-shaped structure. A positive V-shaped groove is opened at the top of the inverted V-shaped structure, and a secondary attachment is welded between the V-shaped grooves of the two opposite pointed tooth outer link plates.

4. A medium pitch large wood conveying chain with a sharp tooth structure formed by secondary attachments as claimed in claim 3, characterized in that: The secondary attachment is a solid iron block with a rectangular structure. The angle of the V-shaped groove is 90°. The side edge 1 of the solid iron block fits tightly with the inner edge of the V-shaped groove. The surfaces of the solid iron blocks on both sides of the side edge 1 fit tightly with the groove wall of the V-shaped groove and are welded. The side edge 2 of the solid iron block opposite to the side edge 1 forms a ridge-shaped tooth tip. The two adjacent solid iron blocks and the V-shaped groove on the top of the sharp-tooth inner chain plate between them together form an additional sharp-tooth structure, thereby achieving support for the bottom of large logs and constraints on both sides.

5. A medium pitch large wood conveying chain with a sharp tooth structure formed by secondary attachments as claimed in claim 4, characterized in that: The inner edges of the V-shaped groove and the side edges of the secondary attachment are all chamfered by R1, the corners at both ends of the side of the secondary attachment are chamfered by C1, the side wall of the V-shaped groove has a bright band covering at least 80% of the area, and one end of the secondary attachment is flush with the outer surface of the sharp tooth outer link plate on the same side.

6. A medium pitch large wood conveying chain with a sharp tooth structure formed by secondary attachments as claimed in claim 5, characterized in that: The width of the side surface of the secondary attachment is the same as the width of the wall of the V-shaped groove.

7. A medium pitch large wood conveying chain with a sharp tooth structure formed by secondary attachments as claimed in claim 6, characterized in that: The pointed tooth inner link plate and the pointed tooth outer link plate both include a link plate body, an inverted V-shaped structure is integrally formed at the top of the link plate body, an upright V-shaped groove is provided at the top of the inverted V-shaped structure, and the bottom of the V-shaped groove is higher than the upper end of the link plate body.

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