Quick-change interface device for agricultural machinery

Abstract

This invention aims to provide a quick-change interface device for agricultural machinery, comprising a cylinder body, a power key shaft, a PTO key shaft, an actuating mechanism, a power transmission sleeve, and a PTO transmission sleeve. The cylinder body is mounted on a power mechanism, with the output ends of the power shaft and PTO shaft of the power mechanism located within the cylinder body. The cylinder body houses the power key shaft, PTO key shaft, actuating mechanism, power transmission sleeve, and PTO transmission sleeve. The power key shaft and PTO key shaft are fixedly connected to their respective output ends. The axial directions of the power key shaft, PTO key shaft, power shaft, and PTO shaft are parallel to the axial direction of the cylinder body. The inner surfaces of the power transmission sleeve and PTO transmission sleeve are keyway structures corresponding to the power key shaft and PTO key shaft, respectively. The actuating mechanism is mounted on the side wall of the cylinder body and connects to the power transmission sleeve and PTO transmission sleeve via a fork. This invention has a simple structure, is easy to use, and allows for convenient and quick replacement of rear-mounted agricultural machinery functional modules.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and more specifically to a quick-change interface device for agricultural machinery. Background Technology

[0002] Agricultural mechanization is a crucial means of developing modern agriculture in my country and an important component of modern agriculture. Currently, the types of agricultural machinery used in agriculture are increasing, such as seeders, weeders, and rotary tillers. These machines are very effective in field operations, but they are all individual units, each requiring a matching engine, which significantly increases the economic burden on farmers. Many agricultural machinery manufacturers are now incorporating modular design methods into their products, designing multiple functional modules with different functions while maintaining the same basic main power module. This "one machine, multiple uses" approach reduces costs and represents the future trend of agricultural machinery development. However, currently, replacing the main power module with functional modules requires manual positioning and installation, which is inconvenient and inefficient. Therefore, it is necessary to design a quick-change interface device that allows for rapid replacement of functional modules, taking into account practical needs. Summary of the Invention

[0003] The present invention aims to provide a quick-change interface device for agricultural machinery, which has a simple structure, is easy to use, and can conveniently and quickly replace the rear-mounted agricultural machinery functional modules.

[0004] The technical solution of the present invention is as follows: The aforementioned quick-change interface device for agricultural machinery includes a cylinder, a power key shaft, a PTO key shaft, a toggle mechanism, a power transmission sleeve, and a PTO transmission sleeve. The cylinder body is mounted on the power mechanism, and the output ends of the power shaft and PTO shaft of the power mechanism are placed inside the cylinder body. The cylinder body is equipped with a power key shaft, a PTO key shaft, a toggle mechanism, a power transmission sleeve, and a PTO transmission sleeve. The power key shaft and PTO key shaft are fixedly connected to the output ends of the power shaft and PTO shaft, respectively; the axial directions of the power key shaft, PTO key shaft, power shaft, and PTO shaft are parallel to the axial direction of the cylinder block. The inner circular surfaces of the power transmission sleeve and the PTO transmission sleeve are keyway structures corresponding to the power key shaft and the PTO key shaft, respectively. The actuating mechanism is installed on the side wall of the cylinder and is connected to the power transmission sleeve and the PTO transmission sleeve respectively through the actuating fork. It can drive the power transmission sleeve and the PTO transmission sleeve to slide along the power key shaft and the PTO key shaft by actuating the actuating fork, and connect to the key shaft on the agricultural machinery functional module to drive it to work or disconnect it from the key shaft.

[0005] The actuating mechanism includes a rotating shaft I, a rotating shaft sleeve, a connecting rod I, a connecting rod II, a guide slide rod, and a slider; One end of the guide slide rod is fixed to the end cover of the drive shaft, and the other end is connected to the bracket, which is installed on the inner wall of the cylinder. The slider is mounted on the guide slide rod and can slide along the guide slide rod. The slider is fixedly connected to the fork. The cylinder body sidewall is provided with a rotating shaft sleeve hole, the rotating shaft sleeve is fixedly installed in the rotating shaft sleeve hole, the rotating shaft I is installed in the rotating shaft sleeve and can slide relative to the rotating shaft sleeve; the rotating shaft I is arranged radially, the upper end of the rotating shaft I extends out of the cylinder body and the lower end extends into the cylinder body; the upper end of the rotating shaft I is connected to the handle. One end of connecting rod I is rotatably connected to rotating shaft I via a bushing, and the other end of connecting rod I is rotatably connected to rotating shaft II on one end of connecting rod II via a bushing. The other end of connecting rod II is rotatably connected to rotating shaft III on the slider via a bushing. The axes of rotating shaft I, rotating shaft II, and rotating shaft III are parallel.

[0006] The outer circular surfaces of the power transmission sleeve and the PTO transmission sleeve are provided with annular grooves. The two ends of the shift fork are respectively provided with semi-circular inserts corresponding to the annular grooves. The two ends of the shift fork are respectively inserted into the annular grooves of the power transmission sleeve and the PTO transmission sleeve through the semi-circular inserts, which can drive the power transmission sleeve and the PTO transmission sleeve to slide along the guide slide rod, without affecting the rotation of the power transmission sleeve and the PTO transmission sleeve.

[0007] The rotating shaft sleeve has a 150-degree groove on the side near the cylinder body, and the handle has a 60-degree protrusion on the end that contacts the rotating shaft sleeve, restricting the handle to rotate only within a 90-degree range. When the handle is rotated to its limit away from the drive shaft end cover, connecting rod I and connecting rod II are on the same straight line and parallel to the power key shaft.

[0008] The upper end of the rotating shaft I is provided with a connecting key, and the handle connecting part is provided with a keyway. The keyway and the connecting key cooperate to allow for immediate disassembly or assembly onto the rotating shaft I.

[0009] The quick-change interface device for agricultural machinery also includes a guide component, which includes a tapered pin and a connecting plate. The connecting plate is located at the end of the outer circular surface of the cylinder and has a guide hole. The tapered pin is located on the mounting plate of the agricultural functional module to be connected and is set corresponding to the guide hole to ensure that the PTO shaft of the power mechanism and the agricultural functional module is coaxial with the power shaft.

[0010] The aforementioned taper pin and guide hole mating structure is provided in two or more sets.

[0011] The quick-change interface device for agricultural machinery also includes a hook locking mechanism, which includes a hook locking handle, a pressure pin, a hook handle, a hook locking bracket, and a rotary pin. The hook lock bracket is located at the end of the cylinder body. A rotating pin perpendicular to the cylinder body's axial direction is mounted on the hook lock bracket. The hook lock handle is mounted on the rotating pin and can rotate based on it. A pressure pin is located in the middle of the hook lock handle, and the rear end of the hook handle is mounted on the pressure pin and can rotate based on it. A hook is located at the front end of the hook handle to hook onto... By lifting the hook handle outward and pressing it inward, the hook engages with the groove on the mounting plate of the agricultural functional module.

[0012] The working process of this invention is as follows: When connecting the power mechanism and the agricultural functional module, the power mechanism moves to the front of the agricultural functional module, aligning the cylinder block with the connection structure of the agricultural functional module. Under the guidance of the guide components, the PTO shafts of the power mechanism and the agricultural functional module are coaxial with the power shaft. Then, the hook-lock mechanism ensures a tight fit between the cylinder block and the connection structure of the agricultural functional module. Insert the handle, and then crank the handle to connect the PTO shaft of the main power module and the functional module to the power shaft, using the power transmission sleeve and PTO transmission sleeve. Then, remove the handle to complete the quick connection between the main power module and the functional module. To disconnect, open the hook-lock mechanism, insert the handle, and crank the handle to disconnect the main power module and the functional module, using the power transmission sleeve and PTO transmission sleeve.

[0013] This invention designs a unique quick-change interface device for agricultural machinery, enabling immediate switching and connection of agricultural functional modules. This is faster and more efficient, reducing preparation time for agricultural machinery and allowing for rapid switching between multiple functions on a single machine. When multiple machines are needed to work on a piece of land, the quick-change interface device allows for immediate switching of functional modules after completing one task, significantly shortening machine preparation time, ensuring sufficient time for other tasks to be completed, reducing operator workload, and increasing productivity.

[0014] This invention uses a quick-change interface device to guide the main power module and the functional module to be coaxial, and the quick-change interface device enables a rapid connection between the PTO shaft and the power shaft, further ensuring the accuracy and precision of the rapid connection.

[0015] The quick-change interface device of the present invention has a simple structure and is easy to operate. It can be easily operated by a single person to quickly change agricultural machinery functional modules, reduce labor intensity and labor costs, and liberate productivity. Attached Figure Description

[0016] Figure 1 This is a front view of the internal structure of the cylinder of the quick-change interface device of the present invention; Figure 2 This is a top view of the internal structure of the cylinder of the quick-change interface device of the present invention; Figure 3 This is a schematic diagram of the main structure of the invention. Figure 4 This is a schematic diagram of the hook-lock mechanism of the present invention; Figure 5 This is a schematic diagram of the shift fork structure of the present invention; Figure 6 This is a structural diagram of the quick-change interface device of the present invention connecting the power mechanism and the agricultural functional module; The names and numbers of the parts in the diagram are as follows: 1-Cylinder block, 2-Power key shaft, 3-PTO key shaft, 4-Power transmission sleeve, 5-PTO transmission sleeve, 6-Power shaft, 7-PTO shaft, 8-Shift fork, 9-Shaft I, 10-Shaft sleeve, 11-Connecting rod I, 12-Connecting rod II, 13-Guide slide rod, 14-Slider, 15-Drive shaft end cover, 16-Bracket, 17-Hook, 18-Shaft sleeve hole, 19-Handle, 20-Shaft II, 21-Shaft III, 22-Annular groove, 23-Semi-circular insert, 24-Groove, 25-Protrusion, 26-Connecting key, 27-Tapered pin, 28-Connecting plate, 29-Agricultural functional module, 30-Mounting plate, 31-Hook lock handle, 32-Pressure pin, 33-Hook handle, 34-Hook lock bracket, 35-Rotating pin. Detailed Implementation

[0017] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] Example 1 like Figure 1-6 As shown, the quick-change interface device for agricultural machinery includes a cylinder 1, a power key shaft 2, a PTO key shaft 3, a toggle mechanism, a power transmission sleeve 4, and a PTO transmission sleeve 5. The cylinder body 1 is mounted on the power mechanism. The output ends of the power shaft 6 and PTO shaft 7 of the power mechanism are placed inside the cylinder body 1. The cylinder body 1 is equipped with a power key shaft 2, a PTO key shaft 3, a toggle mechanism, a power transmission sleeve 4, and a PTO transmission sleeve 5. The power key shaft 2 and PTO key shaft 3 are fixedly connected to the output ends of the power shaft 6 and PTO shaft 7, respectively; the axial directions of the power key shaft 2, PTO key shaft 3, power shaft 6, and PTO shaft 7 are parallel to the axial direction of the cylinder block 1. The inner circular surfaces of the power transmission sleeve 4 and the PTO transmission sleeve 5 are respectively keyway structures for the power key shaft 2 and the PTO key shaft 3. The actuating mechanism is installed on the side wall of the cylinder 1 and is connected to the power transmission sleeve 4 and the PTO transmission sleeve 5 respectively through the fork 8. It can drive the power transmission sleeve 4 and the PTO transmission sleeve 5 to slide along the power key shaft 2 and the PTO key shaft 3 by actuating the fork 8, and connect to the key shaft on the agricultural machinery functional module to drive it to work or disconnect it from the key shaft.

[0019] The actuating mechanism includes a rotating shaft I9, a rotating shaft sleeve 10, a connecting rod I11, a connecting rod II12, a guide slide rod 13, and a slider 14; One end of the guide slide rod 13 is fixed on the drive shaft end cover 15, and the other end is connected to the bracket 16, which is installed on the inner wall of the cylinder body 1. The slider 14 is mounted on the guide slide rod 13 and can slide along the guide slide rod 13. The slider 14 is fixedly connected to the fork 8. The cylinder body 1 has a rotating shaft sleeve hole 18 on its side wall. The rotating shaft sleeve 10 is fixedly installed in the rotating shaft sleeve hole 18. The rotating shaft I9 is ​​installed in the rotating shaft sleeve 10 and can slide relative to the rotating shaft sleeve 10. The rotating shaft I9 is ​​arranged radially, with its upper end extending out of the cylinder body 1 and its lower end extending into the cylinder body 1. The upper end of the rotating shaft I9 is ​​connected to the handle 19. One end of the connecting rod I11 is rotatably connected to the rotating shaft I9 via a bushing, and the other end of the connecting rod I11 is rotatably connected to the rotating shaft II20 on one end of the connecting rod II12 via a bushing. The other end of the connecting rod II12 is rotatably connected to the rotating shaft III21 on the slider 14 via a bushing. The axes of the rotating shafts I9, II20, and III21 are parallel.

[0020] The outer circular surfaces of the power transmission sleeve 4 and the PTO transmission sleeve 5 are provided with annular grooves 22. The two ends of the shift fork 8 are respectively provided with semi-circular inserts 23 corresponding to the annular grooves 22. The two ends of the shift fork 8 are respectively inserted into the annular grooves 22 of the power transmission sleeve 4 and the PTO transmission sleeve 5 through the semi-circular inserts 23, which can drive the power transmission sleeve 4 and the PTO transmission sleeve 5 to slide along the guide slide rod 13, without affecting the rotation of the power transmission sleeve 4 and the PTO transmission sleeve 5.

[0021] The rotating sleeve 10 has a 150-degree groove 24 on the side near the cylinder body 1, and the handle 19 has a 60-degree protrusion 25 on the end that contacts the rotating sleeve 10, which restricts the handle 19 to rotate only within a 90-degree range. When the handle 19 is rotated to its limit away from the drive shaft end cover 15, connecting rod I 11 and connecting rod II 12 are on the same straight line and parallel to the power key shaft 2.

[0022] The upper end of the rotating shaft I9 is ​​provided with a connecting key 26, and the connecting part of the handle 19 is provided with a keyway. The keyway and the connecting key 26 cooperate to allow for immediate disassembly or assembly onto the rotating shaft I9.

[0023] The quick-change interface device for agricultural machinery also includes a guide component, which includes a tapered pin 27 and a connecting plate 28. The connecting plate 28 is located at the end of the outer circular surface of the cylinder 1 and has a guide hole. The tapered pin 27 is located on the mounting plate 30 of the agricultural functional module 29 to be connected and is set corresponding to the guide hole to ensure that the PTO shaft of the power mechanism and the agricultural functional module 29 is coaxial with the power shaft.

[0024] The mating structure of the tapered pin 27 and the guide hole is provided in two or more sets.

[0025] The quick-change interface device for agricultural machinery is characterized in that it further includes a hook locking mechanism, which includes a hook locking handle 31, a pressure pin 32, a hook handle 33, a hook locking bracket 34, and a rotary pin 35. The hook lock bracket 34 is located at the end of the cylinder body 1. A rotary pin 35 perpendicular to the axial direction of the cylinder body 1 is provided on the hook lock bracket 34. The hook lock handle 31 is mounted on the rotary pin 35 and can rotate based on the rotary pin 35. A pressure pin 32 is provided in the middle of the hook lock handle 31. The rear end of the hook handle 33 is located on the pressure pin 32 and can rotate based on the pressure pin 32. A hook 17 is provided at the front end of the hook handle 33, which can hook onto... By lifting the hook handle 31 outward and pressing it inward, the hook 17 hooks into the groove of the mounting plate 30 on the agricultural functional module 29.

Claims

1. A quick-change interface device for agricultural machinery, comprising a cylinder (1), a power key shaft (2), a PTO key shaft (3), an actuating mechanism, a power transmission sleeve (4), and a PTO transmission sleeve (5); characterized in that: The cylinder (1) is mounted on the power mechanism. The output ends of the power shaft (6) and PTO shaft (7) of the power mechanism are placed inside the cylinder (1). The cylinder (1) is equipped with a power key shaft (2), a PTO key shaft (3), a toggle mechanism, a power transmission sleeve (4), and a PTO transmission sleeve (5). The power key shaft (2) and PTO key shaft (3) are fixedly connected to the output ends of the power shaft (6) and PTO shaft (7), respectively; the axial directions of the power key shaft (2), PTO key shaft (3), power shaft (6), and PTO shaft (7) are parallel to the axial direction of the cylinder block (1); The inner circular surfaces of the power transmission sleeve (4) and the PTO transmission sleeve (5) are the keyway structures corresponding to the power key shaft (2) and the PTO key shaft (3), respectively. The actuation mechanism is installed on the side wall of the cylinder (1) and is connected to the power transmission sleeve (4) and PTO transmission sleeve (5) respectively through the fork (8). It can drive the power transmission sleeve (4) and PTO transmission sleeve (5) to slide along the power key shaft (2) and PTO key shaft (3) by actuating the fork (8), and connect to the key shaft on the agricultural machinery functional module to drive it to work or disconnect it from the key shaft. The actuating mechanism includes a rotating shaft I (9), a rotating shaft sleeve (10), a connecting rod I (11), a connecting rod II (12), a guide slide rod (13), and a slider (14). One end of the guide slide rod (13) is fixed on the drive shaft end cover (15), and the other end is connected to the bracket (16). The bracket (16) is installed on the inner wall of the cylinder body (1). The slider (14) is mounted on the guide slide rod (13) and can slide along the guide slide rod (13). The slider (14) is fixedly connected to the fork (8). The cylinder body (1) has a rotating shaft sleeve hole (18) on its side wall. The rotating shaft sleeve (10) is fixedly installed in the rotating shaft sleeve hole (18). The rotating shaft I (9) is installed in the rotating shaft sleeve (10) and can slide relative to the rotating shaft sleeve (10). The rotating shaft I (9) is arranged radially. The upper end of the rotating shaft I (9) extends out of the cylinder body (1) and the lower end extends into the cylinder body (1). The upper end of the rotating shaft I (9) is connected to the handle (19). One end of the connecting rod I (11) is rotatably connected to the rotating shaft I (9) through a bushing, and the other end of the connecting rod I (11) is rotatably connected to the rotating shaft II (20) on one end of the connecting rod II (12) through a bushing. The other end of the connecting rod II (12) is rotatably connected to the rotating shaft III (21) on the slider (14) through a bushing. The axial directions of the rotating shaft I (9), rotating shaft II (20), and rotating shaft III (21) are parallel.

2. The quick-change interface device for agricultural machinery as described in claim 1, characterized in that: The outer circular surfaces of the power transmission sleeve (4) and the PTO transmission sleeve (5) are provided with annular grooves (22). The two ends of the fork (8) are respectively provided with semi-circular inserts (23) corresponding to the annular grooves (22). The two ends of the fork (8) are respectively inserted into the annular grooves (22) of the power transmission sleeve (4) and the PTO transmission sleeve (5) through the semi-circular inserts (23), which can drive the power transmission sleeve (4) and the PTO transmission sleeve (5) to slide along the guide slide rod (13) without affecting the rotation of the power transmission sleeve (4) and the PTO transmission sleeve (5).

3. The quick-change interface device for agricultural machinery as described in claim 1, characterized in that: The rotating sleeve (10) has a 150-degree groove (24) on the side near the cylinder (1), and the handle (19) has a 60-degree protrusion (25) on the end that contacts the rotating sleeve (10), which restricts the handle (19) to rotate only within a 90-degree range. When the handle (19) is rotated to its limit away from the drive shaft end cap (15), connecting rod I (11) and connecting rod II (12) are on the same straight line and parallel to the power key shaft (2).

4. The quick-change interface device for agricultural machinery as described in claim 1, characterized in that: The upper end of the rotating shaft I (9) is provided with a connecting key (26), and the connecting part of the handle (19) is provided with a keyway. Through the cooperation of the keyway and the connecting key (26), it can be disassembled or assembled onto the rotating shaft I (9) in an instant.

5. The quick-change interface device for agricultural machinery as described in claim 1, characterized in that: It also includes a guide component, which includes a tapered pin (27) and a connecting plate (28). The connecting plate (28) is located at the end of the outer circular surface of the cylinder body (1). The connecting plate (28) is provided with a guide hole. The tapered pin (27) is located on the mounting plate (30) of the agricultural functional module (29) that needs to be connected, and is set in accordance with the guide hole to ensure that the PTO shaft of the power mechanism and the agricultural functional module (29) is coaxial with the power shaft.

6. The quick-change interface device for agricultural machinery as described in claim 5, characterized in that: The matching structure of the tapered pin (27) and the guide hole is provided in two or more sets.

7. The quick-change interface device for agricultural machinery as described in claim 1, characterized in that: It also includes a hook lock mechanism, which includes a hook lock handle (31), a pressure pin (32), a hook handle (33), a hook lock bracket (34), and a slewing pin (35). The hook lock bracket (34) is located at the end of the cylinder body (1). The hook lock bracket (34) is provided with a rotary pin (35) perpendicular to the axis of the cylinder body (1). The hook lock handle (31) is installed on the rotary pin (35) and can rotate based on the rotary pin (35). The middle part of the hook lock handle (31) is provided with a pressure pin (32). The rear end of the hook handle (33) is located on the pressure pin (32) and can rotate based on the pressure pin (32). The front end of the hook handle (33) is provided with a hook (17). By lifting outward and pressing inward with the hook handle (31), the hook (17) hooks into the groove of the mounting plate (30) on the agricultural functional module (29).

Images