A medium-pitch large timber conveyor chain with a toothed structure composed of secondary attachments.

Abstract

A medium-pitch large timber conveying chain with a toothed structure composed of secondary attachments, belonging to the field of chain drive technology, includes a toothed timber conveying chain body. The toothed timber conveying chain body comprises a toothed outer chain plate and a toothed inner chain plate. The key feature is that the tops of the oppositely positioned toothed outer chain plates are welded with transversely arranged secondary attachments. Adjacent secondary attachments form an additional toothed structure, which secures the large timber between two secondary attachments, achieving the conveying of large timber while maintaining a relatively small pitch. This invention ensures stable conveying of large timber, balances the chain's tensile strength and wear resistance, guarantees chain functionality and service life, and significantly reduces the pitch compared to existing toothed large timber conveying chains, thereby improving conveying efficiency, reducing sprocket size, and enhancing installation convenience.

Description

Technical Field

[0001] This invention belongs to the field of chain drive technology, specifically relating to a medium-pitch large timber conveying chain with a toothed structure composed of two secondary attachments. Background Technology

[0002] Existing timber conveyor chains, such as Figure 1 , 2 As shown, the timber is mainly carried by toothed chain plates, where the teeth prevent the timber from rolling. The timber is effectively transported through the operation of the chain.

[0003] In practical use, existing timber conveyor chains have the following problems:

[0004] 1. Small-sized timber conveyor chains have small teeth, making it easy for large timbers to roll during transport; the chain plates are thin, and the chain has weak tensile strength, making it insufficient to withstand material impact during the transport of large timbers. Under prolonged material impact and stress, the tips of the chain plates may break or the chain may break.

[0005] 2. Medium-sized timber conveyor chains have small teeth, which makes it easy for large timbers to roll during transport, thus hindering effective operation.

[0006] 3. Large-size timber conveyor chains, due to the large pitch of the toothed chain plates, are only suitable for low-speed operating conditions and cannot meet the speed requirements of customers. The wear resistance of the chain is greatly reduced, affecting its service life. In addition, some customers' equipment transmission systems have limited reserved space, making it impossible to install larger-size sprockets. Summary of the Invention

[0007] In view of the problems described in the prior art 1-3, the present invention discloses a medium-pitch large timber conveying chain with a toothed structure composed of two secondary attachments. This timber conveying chain, while achieving effective transportation of large timber, reduces the pitch, significantly increases the conveying speed of the conveying chain, reduces the sprocket size, and improves the wear resistance and service life of the chain.

[0008] To achieve the above objectives, the technical solution of this invention is as follows:

[0009] A medium-pitch large timber conveying chain with a toothed structure composed of secondary attachments includes a toothed timber conveying chain body, which includes a toothed outer chain plate and a toothed inner chain plate. The key feature is that the top of the oppositely arranged toothed outer chain plate is welded with a transversely arranged secondary attachment, and adjacent secondary attachments form an additional toothed structure. By adding the toothed structure, large timber is held between two secondary attachments, achieving the conveying of large timber while maintaining a small pitch.

[0010] Preferably, the toothed wood conveyor chain body further includes pins, sleeves, and rollers. Two toothed inner chain plates are arranged opposite each other and connected by two sleeves. The two ends of the two sleeves are respectively interference-fitted with one connecting hole of the corresponding toothed inner chain plate. The rollers are sleeved outside the sleeves and are clearance-fitted with the sleeves. The inner chain plates, sleeves, and rollers constitute an inner chain link. Two toothed outer chain plates are arranged opposite each other and connected by two pins. The two ends of the two pins are respectively interference-fitted with the connecting holes of the corresponding toothed outer chain plates. The toothed outer chain plates and pins constitute an outer chain link. The inner chain links and outer chain links are linked alternately. The pins pass through the sleeves of adjacent inner chain links and are clearance-fitted with the sleeves.

[0011] Preferably, the inner and outer toothed chain plates have the same structure, with the top extending upward to form an inverted V-shaped structure. An upright V-shaped groove is provided at the top of the inverted V-shaped structure, and a secondary accessory is welded between the V-shaped grooves of the two opposite outer toothed chain plates.

[0012] Preferably, the secondary accessory is a solid iron block with a cuboid structure, the V-groove has an angle of 90°, the side edge of the solid iron block is in close contact with the inner edge of the V-groove, the surfaces of the solid iron blocks on both sides of the side edge are in close contact with and welded to the groove wall of the V-groove, the side edge of the solid iron block opposite to the side edge of the side edge forms a prismatic tooth tip, and the two adjacent solid iron blocks and the V-groove on the top of the inner chain plate of the tooth tip together constitute an additional tooth structure, thereby achieving the support of the bottom of the large round log and the constraint of both sides.

[0013] Preferably, the inner edge of the V-shaped groove and each side edge of the secondary accessory are rounded with R1, the corners at both ends of the side of the secondary accessory are rounded with C1, the sidewall of the V-shaped groove has a bright band covering at least 80% of its area, and one end of the secondary accessory is flush with the outer surface of the toothed outer chain plate on the same side.

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

[0015] Preferably, both the inner and outer toothed chain plates include a chain plate body, with an inverted V-shaped structure integrally formed at the top of the chain plate body. An upright V-shaped groove is formed at the top of the inverted V-shaped structure, and the bottom of the V-shaped groove is higher than the top of the chain plate body.

[0016] The beneficial effects of this invention, a medium-pitch large timber conveyor chain with a toothed structure composed of secondary attachments, are as follows:

[0017] 1. This invention is an improvement on a medium-sized timber conveyor chain with attachments. Specifically, it is based on a medium-sized toothed timber conveyor chain, which is modified by adding a secondary attachment with a cuboid structure to form a chain suitable for conveying large timbers. This ensures the stable conveying of large timbers, takes into account the tensile strength and wear resistance of the chain, and guarantees the functionality and service life of the chain. At the same time, compared with the existing toothed timber conveyor chains for large timbers, the pitch is significantly reduced, which can improve the conveying efficiency, reduce the size of the sprocket, and improve the convenience of installation.

[0018] 2. Welding the secondary attachments between the V-grooves of the corresponding pointed outer chain plates can effectively strengthen the chain. Changing the existing plate-shaped tooth tips to prismatic tooth tips can effectively improve the strength of the teeth. Furthermore, the contact surface with the wood changes from plate-shaped tooth tips to the entire edge of the secondary attachment, increasing the contact surface with the wood and making it more resistant to damage. Attached Figure Description

[0019] Figure 1 This is a front view of a conventional toothed timber conveyor chain.

[0020] Figure 2 This is a top view of a conventional toothed timber conveyor chain.

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

[0022] Figure 4 This is a top view of the structure of the present invention.

[0023] Figure 5 This is a schematic diagram of the chamfering of the secondary attachment (the left diagram shows that the corners at both ends of the side of the secondary attachment are rounded with C1; the right diagram shows that each side edge of the secondary attachment is rounded with R1).

[0024] Figure 6 This is a comparison diagram of the pitch of the present invention (left) and the pitch of a conventional large timber conveyor chain (right).

[0025] Figure 7 This is a top-view comparison of the present invention (left) and the existing large timber conveyor chain (right).

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

[0027] The diagram shows: 1-Inner chain plate with pointed teeth, 2-Outer chain plate with pointed teeth, 3-Secondary accessory, 4-Pin, 5-Sleeve, 6-Roller, 7-V-groove, 8-Chain plate body, 81-Upper end of chain plate body, 82-Lower end of chain plate body. Detailed Implementation

[0028] The following description is merely 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 within the scope of protection of the present invention.

[0029] The following embodiments can be understood as illustrating a part of the structure or method of the present invention individually, or as combining the embodiments to explain the broader structure or method of the present invention.

[0030] Example 1

[0031] A medium-pitch large timber conveyor chain with a toothed structure composed of secondary attachments, such as Figure 3-5 As shown, the material includes a toothed timber conveying chain body, which includes a toothed outer chain plate 2 and a toothed inner chain plate 1. The top of the toothed outer chain plate 2, which is arranged opposite to each other, is welded with a horizontally arranged secondary attachment 3. The adjacent secondary attachments 3 form an additional tooth structure. By adding the tooth structure, large timber is stuck between two secondary attachments 3, and the conveying of large timber is achieved while maintaining a small pitch.

[0032] In this embodiment, the toothed timber conveyor chain body can be a toothed timber conveyor chain disclosed in the prior art. By welding secondary attachments between the tops of the oppositely arranged toothed outer chain plates, adjacent secondary attachments can form an additional tooth structure. This additional tooth structure holds large timbers between two secondary attachments, achieving the conveying of large timbers while maintaining a small pitch. The "small pitch" here is compared to the pitch of existing large toothed timber conveyor chains, which typically have a large pitch of 50.8 mm. Due to the large pitch, the chain runs very slowly when driven by the sprocket, making it difficult to meet usage requirements. In this invention, the secondary attachments are welded between the tops of the oppositely arranged outer chain plates of the outer chain links. This additional tooth structure allows for rapid conveying of large timbers while maintaining a small pitch. The pitch of this invention reaches 38.1 mm, significantly smaller than the pitch of existing large toothed timber conveyor chains, thus achieving sprocket miniaturization and effectively improving the conveying speed of large timbers.

[0033] Example 2

[0034] like Figure 3 , 4As shown, the toothed wood conveyor chain body also includes pins 4, sleeves 5, and rollers 6. Two toothed inner chain plates 1 are arranged opposite each other and connected by two sleeves 5. The two ends of the two sleeves 5 are respectively interference-fitted with one connecting hole of the corresponding toothed inner chain plate 1. The rollers 6 are sleeved outside the sleeves 5 and are clearance-fitted with the sleeves 5. The inner chain plates 1, sleeves 5, and rollers 6 constitute an inner chain link. Two toothed outer chain plates 2 are arranged opposite each other and connected by two pins 4. The two ends of the two pins 4 are respectively interference-fitted with the connecting holes of the corresponding toothed outer chain plates 2. The toothed outer chain plates 2 and pins 4 constitute an outer chain link. The inner chain links and outer chain links are linked alternately. The pins 4 pass through the sleeves 5 of adjacent inner chain links and are clearance-fitted with the sleeves 5.

[0035] This embodiment provides a preferred structure for the toothed wood conveyor chain body of the present invention.

[0036] Example 3

[0037] like Figure 3-5 As shown, the inner toothed chain plate 1 and the outer toothed chain plate 2 have the same structure, with the top extending upward to form an inverted V-shaped structure. An upright V-shaped groove 7 is provided at the top of the inverted V-shaped structure, and a secondary accessory 3 is welded between the V-shaped grooves 7 of the two opposite outer toothed chain plates.

[0038] like Figure 3-5 As shown, the secondary accessory 3 is a solid iron block with a cuboid structure. The angle of the V-shaped groove 7 is 90°. The side edge of the solid iron block is in close contact with the inner edge of the V-shaped groove 7. The surfaces of the solid iron blocks on both sides of the side edge are in close contact with and welded to the groove wall of the V-shaped groove 7. The side edge of the solid iron block that is vertically opposite to the side edge of the side edge forms a prismatic tooth tip. The two adjacent solid iron blocks and the V-shaped groove 7 on the top of the inner chain plate of the toothed inner chain plate together form an additional toothed structure, thereby achieving the support of the bottom of the large round log and the constraint of both sides.

[0039] In this embodiment, the secondary attachment is welded between the V-grooves of the opposite pointed outer chain plates, which can effectively strengthen the chain. The plate-shaped tooth tips of the prior art are changed to prismatic tooth tips, which can effectively improve the strength of the teeth. Furthermore, the contact surface with the wood is changed from plate-shaped tooth tips to the entire edge of the secondary attachment, increasing the contact surface with the wood and making it more resistant to damage.

[0040] Example 4

[0041] like Figure 3-5 As shown, the inner edge of the V-groove 7 and each side edge of the secondary accessory 3 are rounded with R1, and the corners at both ends of the side of the secondary accessory 3 are rounded with C1. The sidewall of the V-groove 7 has a bright band covering at least 80% of its area. One end of the secondary accessory 3 is flush with the outer surface of the toothed outer chain plate 2 on the same side to avoid interference with the equipment casing.

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

[0043] like Figure 7 As shown, both the inner and outer toothed chain plates include a chain plate body. The top of the chain plate body is integrally formed with an inverted V-shaped structure. An upright V-shaped groove is formed at the top of the inverted V-shaped structure. The bottom of the V-shaped groove is higher than the top of the chain plate body. By maintaining a certain impact buffer distance between the bottom of the V-shaped groove and the top of the chain plate body, the impact of vertical impact on the physical properties of the chain plate body is weakened.

[0044] Working principle of the invention:

[0045] 1. This invention is an improvement on a medium-sized timber conveyor chain with attachments. Specifically, it is based on a medium-sized toothed timber conveyor chain, which is modified by adding a secondary attachment with a cuboid structure to form a chain suitable for conveying large timbers. This ensures the stable conveying of large timbers, takes into account the tensile strength and wear resistance of the chain, and guarantees the functionality and service life of the chain. At the same time, compared with the existing toothed timber conveyor chains for large timbers, the pitch is significantly reduced, which can improve the conveying efficiency, reduce the size of the sprocket, and improve the convenience of installation.

[0046] 2. The root of the V-groove is designed with an R1 rounded corner, and the side end face of the V-groove has a bright band covering at least 80% of its area, ensuring a tight fit and firm welding with the secondary accessories. This V-groove plays a beneficial role in preventing the secondary accessories from falling off.

[0047] 3. The four long edges of the square columnar secondary attachment are rounded with R1, perfectly fitting the root of the V-groove of the toothed chain plate; the end face is a square with a side length of 12mm, also perfectly fitting the opening of the V-groove. This structure ensures that the bottom of the secondary attachment contacts the root of the V-groove. When the secondary attachment is subjected to vertical force, the root bears the force, reducing the indirect force on both sides of the V-groove of the toothed chain plate. When the secondary attachment is subjected to horizontal force, the sides of the V-groove also provide a certain reaction force, improving the overall resistance to damage of the chain; the end face of the secondary attachment is rounded with C1, which helps to enhance welding strength.

[0048] 4. The inner chain plate with pointed teeth has the same V-shaped pointed teeth design, which also plays an effective stabilizing role in the conveying of large timbers. Together with the adjacent secondary accessories, it forms an additional pointed tooth structure.

Claims

1. A medium-pitch large timber conveyor chain with a toothed structure composed of secondary attachments, characterized in that: The invention includes a toothed timber conveying chain body, which comprises a toothed outer chain plate and a toothed inner chain plate. The invention is characterized in that a horizontally arranged secondary attachment is welded to the top of the oppositely arranged toothed outer chain plate, and the adjacent secondary attachments constitute an additional tooth structure. By adding the tooth structure, large timber is stuck between two secondary attachments, and the conveying of large timber is achieved while maintaining a small pitch. The inner and outer toothed chain plates have the same structure, with the top extending upward to form an inverted V-shaped structure. An upright V-shaped groove is provided at the top of the inverted V-shaped structure, and a secondary accessory is welded between the V-shaped grooves of the two opposite outer toothed chain plates. The secondary accessory is a solid iron block with a cuboid structure. The V-shaped groove has an angle of 90°. The first side edge 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 first side edge fit tightly with and are welded to the groove wall of the V-shaped groove. The second side edge of the solid iron block, which is opposite to the first side edge, forms a prismatic tooth tip. The two adjacent solid iron blocks and the V-shaped groove on the top of the inner chain plate with the pointed teeth together form an additional pointed tooth structure, thereby achieving support for the bottom of the large round log and constraint on both sides.

2. The medium-pitch large timber conveyor chain with a toothed structure composed of secondary attachments as described in claim 1, characterized in that: The toothed wood conveyor chain body also includes pins, sleeves, and rollers. Two toothed inner chain plates are arranged opposite each other and connected by two sleeves. The two ends of the two sleeves are respectively interference-fitted with one connecting hole of the corresponding toothed inner chain plate. The rollers are sleeved outside the sleeves and are clearance-fitted with the sleeves. The inner chain plates, sleeves, and rollers constitute an inner chain link. Two toothed outer chain plates are arranged opposite each other and connected by two pins. The two ends of the two pins are respectively interference-fitted with the connecting holes of the corresponding toothed outer chain plates. The toothed outer chain plates and pins constitute an outer chain link. The inner chain links and outer chain links are linked alternately. The pins pass through the sleeves of adjacent inner chain links and are clearance-fitted with the sleeves.

3. A medium-pitch large timber conveyor chain with a toothed structure composed of secondary attachments as described in claim 2, characterized in that: The inner edge of the V-shaped groove and each side edge of the secondary accessory are rounded with R1, and the corners at both ends of the side of the secondary accessory are rounded with C1. The sidewall of the V-shaped groove has a bright band covering at least 80% of its area. One end of the secondary accessory is flush with the outer surface of the toothed outer chain plate on the same side.

4. A medium-pitch large timber conveyor chain with a toothed structure composed of secondary attachments as described in claim 3, characterized in that: The width of the side of the secondary accessory is the same as the width of the V-groove wall.

5. A medium-pitch large timber conveyor chain with a toothed structure composed of secondary attachments as described in claim 4, characterized in that: Both the inner and outer toothed chain plates include a chain plate body. The top of the chain plate body is integrally formed with an inverted V-shaped structure. An upright V-shaped groove is formed at the top of the inverted V-shaped structure. The bottom of the V-shaped groove is higher than the top of the chain plate body.

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