Agricultural machine chain with reinforcing ribs
By designing a reinforced agricultural machinery chain and utilizing the combination of sleeves and inner and outer pins, the problems of low assembly efficiency and weak tensile strength of the transmission chain were solved, achieving rapid installation and enhanced stability and service life.
Patent Information
- Application Number
- CN202520300814.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-02-25
AI Technical Summary
Existing transmission chains have complex structures, average assembly efficiency, lack quick installation structures, weak tensile strength, and lack reinforcing ribs.
Design a reinforced agricultural machinery chain. Through the cooperation of the sleeve and the movable inner chain plate, the installation stability is improved by using the coaxially set outer and inner pins. The outer chain plate is inlaid with I-shaped reinforcing ribs to enhance the tensile strength.
It enables rapid assembly of the chain, improves installation stability and tensile strength, and extends service life.
Smart Images

Figure CN223839662U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chain technology, specifically an agricultural machinery chain with reinforcing ribs. Background Technology
[0002] Chains can be classified into roller chains, toothed chains, and other types according to their structure, with roller chains being the most widely used. The structure of a roller chain consists of inner link plates, outer link plates, pins, bushings, and rollers. The inner link plates are fixed to the bushings, and the outer link plates are fixed to the pins with interference fits, called inner and outer link links. The rollers are fixed to the bushings, and the bushings are fixed to the pins with clearance fits. However, in existing traditional chains, the connection structure relies on the plastic deformation of metal parts to limit the movement of the connecting parts during use. This deformation of the metal parts is relatively complicated, making chain installation inconvenient.
[0003] Patent application CN222391869U discloses a high-strength, deformation-resistant transmission chain, aiming to solve the technical problem that current transmission chains rivet both ends of the drive shaft to an external connecting plate, which easily leads to wear or breakage of the drive shaft and inconvenience in replacement. The invention includes an external connecting plate and an internal connecting plate, both with identically sized through holes. A drive shaft is installed inside the through holes, and the drive shaft is surrounded by a pressure-resistant sleeve. Threaded holes are provided at both ends of the drive shaft, and limit sleeves are installed at both ends. This invention enables the drive shaft to be assembled on the transmission chain, avoiding the wear or breakage caused by riveting both ends of the drive shaft to the external connecting plate, thus saving operators time and reducing their labor intensity when replacing transmission chain components, and improving the convenience of disassembly and assembly of the transmission chain.
[0004] However, the transmission chains disclosed above have complex structures, average assembly efficiency, lack a quick installation structure, and have weak tensile strength, lacking a reinforcing rib structure. Utility Model Content
[0005] The purpose of this utility model is to provide an agricultural machinery chain with reinforcing ribs in order to solve the problems of existing transmission chains, such as complex structure, general assembly efficiency, lack of a quick installation structure, weak tensile strength, and lack of a reinforcing rib structure.
[0006] To achieve the above objectives, the technical solution of this utility model is as follows: an agricultural machinery chain with reinforcing ribs, comprising a fixed inner chain plate and a movable inner chain plate. A symmetrical sleeve is fixedly disposed on the inner side of the fixed inner chain plate, and the movable inner chain plate is installed on the outer side of the sleeve. A coaxial through hole is formed on the fixed inner chain plate, the movable inner chain plate, and the sleeve. An outer chain plate that mates with the sleeve is installed on the outer side of the fixed inner chain plate and the movable inner chain plate. An outer limiting groove is formed on the outer wall of the outer chain plate. An outer pin that limits the movement of the outer chain plates on both sides is installed inside the sleeve. Outer limiting bosses that mate with the outer limiting grooves are provided on both sides of the outer pin. A through-hole cavity is formed in the middle of the outer pin. Inner limiting grooves that are coaxial with the inner cavity are formed at both ends of the outer pin. An inner pin is installed inside the inner cavity. Inner limiting bosses that mate with the inner limiting grooves are provided at both ends of the inner pin. Reinforcing ribs are embedded on the inner wall of the outer chain plate.
[0007] As a further improvement of this utility model: a protruding ring is provided on the outer wall of the sleeve, and a groove that matches it is provided on the inner wall of the movable inner chain plate.
[0008] As a further embodiment of this utility model: a symmetrical first boss is provided on the outer wall of the fixed inner chain plate, and the first boss is coaxially arranged with the through hole; a symmetrical second boss is provided on the outer wall of the movable inner chain plate, and the second boss is coaxially arranged with the through hole; and an annular groove is provided on the inner wall of the outer chain plate to cooperate with the first boss and the second boss.
[0009] As a further improvement of this utility model, the reinforcing rib is an I-shaped structure.
[0010] Compared with the prior art, the present invention has the following beneficial effects:
[0011] This invention allows for quick assembly of the fixed inner chain plate via a cooperating sleeve and a movable inner chain plate. The coaxially arranged outer and inner pins enhance the installation stability and strength of the outer chain plates on both sides. During operation, the I-beam reinforcing ribs improve tensile strength, preventing the outer chain plate from tearing in the middle due to excessive stress. This design improves the stability and service life of the reinforced agricultural machinery chain. Attached Figure Description
[0012] The present invention will be further explained below with reference to the accompanying drawings and embodiments:
[0013] Figure 1 This is a three-dimensional structural diagram of the present invention;
[0014] Figure 2 This is a three-dimensional structural diagram of the sleeve and the fixed inner chain plate in this utility model;
[0015] Figure 3 This is a cross-sectional view of the movable inner chain plate in this utility model;
[0016] Figure 4 This is a cross-sectional view of the present invention.
[0017] Explanation of reference numerals in the attached figures:
[0018] 1. Fixed inner link plate; 2. Movable inner link plate; 3. Sleeve; 4. Outer link plate; 5. Through hole; 6. Protruding ring; 7. Groove; 8. First boss; 9. Second boss; 10. Ring groove; 11. Outer limiting groove; 12. Outer pin; 13. Outer limiting boss; 14. Inner cavity; 15. Inner limiting groove; 16. Inner pin; 17. Inner limiting boss; 18. Reinforcing rib. Detailed Implementation
[0019] The following will be combined with the appendix Figures 1 to 4 The technical solution of this utility model has been clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0020] This utility model provides an improved agricultural machinery chain with reinforcing ribs, such as... Figures 1-4 As shown, the device includes a fixed inner chain plate 1 and a movable inner chain plate 2. A symmetrical sleeve 3 is fixedly installed on the inner side of the fixed inner chain plate 1. The movable inner chain plate 2 is installed on the outer side of the sleeve 3. A coaxial through hole 5 is formed on the fixed inner chain plate 1, the movable inner chain plate 2, and the sleeve 3. An outer chain plate 4, which mates with the sleeve 3, is installed on the outer side of the fixed inner chain plate 1 and the movable inner chain plate 2. An outer limiting groove 11 is formed on the outer wall of the outer chain plate 4. Two outer chain plates are installed inside the sleeve 3. 4. An outer pin 12 for limiting is provided. The outer pin 12 has outer limiting bosses 13 on both sides that cooperate with the outer limiting groove 11. The middle of the outer pin 12 has a through inner cavity 14. The two ends of the outer pin 12 have inner limiting grooves 15 that are coaxial with the inner cavity 14. An inner pin 16 is installed in the inner cavity 14. The two ends of the inner pin 16 have inner limiting bosses 17 that cooperate with the inner limiting groove 15. The inner wall of the outer chain plate 4 is inlaid with reinforcing ribs 18.
[0021] This invention allows for quick assembly of the fixed inner chain plate 1 via a cooperating sleeve 3 and a movable inner chain plate 2. The coaxially arranged outer pin 12 and inner pin 16 enhance the installation stability and strength of the outer chain plates 4 on both sides. During operation, the I-beam reinforcing ribs 18 improve tensile strength, preventing the outer chain plate 4 from tearing in the middle due to excessive stress. This design improves the stability and service life of the reinforced agricultural machinery chain.
[0022] See appendix Figure 1 -Appendix Figure 3 A raised ring 6 is provided on the outer wall of the sleeve 3, and a groove 7 that mates with it is provided on the inner wall of the movable inner chain plate 2; a symmetrical first boss 8 is provided on the outer wall of the fixed inner chain plate 1, and the first boss 8 is coaxially arranged with the through hole 5; a symmetrical second boss 9 is provided on the outer wall of the movable inner chain plate 2, and the second boss 9 is coaxially arranged with the through hole 5; an annular groove 10 that mates with the first boss 8 and the second boss 9 is provided on the inner wall of the outer chain plate 4.
[0023] In this embodiment: During installation, the movable inner chain plate 2 is first installed on the outside of the sleeve 3, and the protruding ring 6 is aligned with the groove 7 opened on the inner wall of the movable inner chain plate 2. Then, the outer chain plates 4 on both sides are installed, so that the first boss 8 and the second boss 9 are both installed in the ring groove 10.
[0024] See appendix Figure 1 and attached Figure 4 The reinforcing rib 18 has an I-shaped structure.
[0025] In this embodiment, the reinforcing rib 18 of the I-shaped structure is horizontally embedded on the inner wall of the outer chain plate 4. When the chain is being conveyed, the reinforcing rib 18 can resist the tension in the horizontal direction.
[0026] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and inventive features disclosed herein.
Claims
1. A reinforced agricultural machinery chain, characterized in that: The system includes a fixed inner chain plate (1) and a movable inner chain plate (2). A symmetrical sleeve (3) is fixedly installed on the inner side of the fixed inner chain plate (1). The movable inner chain plate (2) is installed on the outer side of the sleeve (3). A coaxial through hole (5) is formed on the fixed inner chain plate (1), the movable inner chain plate (2), and the sleeve (3). An outer chain plate (4) that mates with the sleeve (3) is installed on the outer side of the fixed inner chain plate (1) and the movable inner chain plate (2). An outer limiting groove (11) is formed on the outer wall of the outer chain plate (4). A countersing element (4) is installed inside the sleeve (3) to counteract the outer chain plates (4) on both sides. The outer pin (12) is used for limiting the position. The outer pin (12) has outer limiting bosses (13) on both sides that cooperate with the outer limiting groove (11). The outer pin (12) has a through inner cavity (14) in the middle. The outer pin (12) has inner limiting grooves (15) coaxial with the inner cavity (14) at both ends. The inner pin (16) is installed in the inner cavity (14). The inner pin (16) has inner limiting bosses (17) at both ends that cooperate with the inner limiting groove (15). The inner wall of the outer chain plate (4) is inlaid with reinforcing ribs (18).
2. The agricultural machinery chain with reinforcing ribs according to claim 1, characterized in that: A protruding ring (6) is provided on the outer wall of the sleeve (3), and a groove (7) that matches it is provided on the inner wall of the movable inner chain plate (2).
3. The agricultural machinery chain with reinforcing ribs according to claim 1, characterized in that: The outer wall of the fixed inner chain plate (1) is provided with a symmetrical first boss (8), which is coaxial with the through hole (5); the outer wall of the movable inner chain plate (2) is provided with a symmetrical second boss (9), which is coaxial with the through hole (5); and the inner wall of the outer chain plate (4) is provided with an annular groove (10) that cooperates with the first boss (8) and the second boss (9).
4. The agricultural machinery chain with reinforcing ribs according to claim 1, characterized in that: The reinforcing rib (18) has an I-shaped structure.
Citation Information
Patent Citations
High-strength anti-deformation transmission chain
CN222391869U