Agricultural machine ploughing clamping mechanism with high wear resistance

Abstract

The application relates to the field of agricultural machinery technology, in particular to a high-wear-resistance agricultural ploughing clamping mechanism, which comprises a main frame, a bottom supporting plate, a mounting frame, a main rod, a share, a trigger mechanism, a storage box and a linkage mechanism, and is further provided with a bolt rod, an elastic compression air bag, a spring, an air pressure telescopic rod and other matched components; a preset fracture threshold is arranged at the arc-shaped easy-to-break gap at the end of the bolt rod, precise overload protection is realized when the share encounters an obstacle and generates an overload resistance, and the main rod, the share and other components are effectively prevented from being damaged; the linkage mechanism and the trigger mechanism are cooperatively linked, the broken bolt can be automatically removed and a new bolt can be automatically pushed to complete replacement, manual intervention is not needed; the spring and the air pressure structure are cooperatively used to realize automatic resetting of the mechanism, shutdown operation is not needed, the maintenance cost of the mechanism is reduced, the continuity and overall efficiency of ploughing operation are improved; the structure is compact, the wear resistance is high, and the mechanism is suitable for various agricultural ploughing scenes and operation requirements under different soil conditions.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, specifically to a plowing clamping mechanism for agricultural machinery with high wear resistance. Background Technology

[0002] The plowing clamping mechanism is a key component in agricultural plowing operations. It is mainly used to install and fix the plowshare, and drive the plowshare to insert into the soil to complete the plowing action. Its working stability, operating efficiency, and component protection capabilities directly affect the quality and continuity of agricultural plowing operations.

[0003] In existing technologies, agricultural machinery plowing clamping mechanisms are widely used in various agricultural plowing operations and can achieve basic plowing functions, but they still have the following drawbacks: Firstly, in the existing technology, when the pin component of the plowing mechanism breaks due to overload, the removal of the broken pin and the replacement of the new pin require manual shutdown. The operation process is cumbersome, which not only consumes a lot of manual operation time, but also causes downtime damage to the mechanism, resulting in operation delays and seriously affecting the overall efficiency of agricultural machinery plowing operations.

[0004] Secondly, the existing agricultural machinery plowing mechanism cannot automatically reset after overload protection and pin replacement, requiring manual intervention to restore it to its initial working state, which increases the labor intensity of operators. In addition, during the operation of the mechanism, operators cannot monitor the pin breakage, replacement, and the operating status of the mechanism in real time, making it difficult to detect abnormalities in a timely manner, posing a safety hazard and affecting the convenience and safety of operation.

[0005] Third, existing agricultural machinery plowing mechanisms lack targeted overload protection structures. When the plowshare encounters obstacles such as stones in the soil, it cannot remove the overload resistance in time, which can easily cause the main shaft, plowshare, and other components to deform or be damaged due to rigid impact. This not only increases the maintenance cost and frequency of maintenance, but also causes the agricultural machinery to stop due to plowshare jamming, disrupting the continuity of plowing operations and shortening the service life of components. Summary of the Invention

[0006] The purpose of this invention is to provide a highly wear-resistant agricultural machinery plowing clamping mechanism to solve the technical problems of existing agricultural machinery plowing clamping mechanisms, such as easy damage due to overload, cumbersome pin replacement, and the need for manual reset. Through the design of overload breakage protection for the pin rod, automatic pin replacement in cooperation with the linkage mechanism and the triggering mechanism, and automatic reset by the spring and pneumatic structure, the plowing operation can be carried out efficiently and stably.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: This invention provides a highly wear-resistant agricultural machinery plowing clamping mechanism, comprising a main frame, with multiple base plates mounted on the bottom end of the main frame, and a mounting frame on one side of each base plate. A main rod is hinged to the inner cavity of each mounting frame, and a plowshare is mounted at one end of each main rod. A triggering mechanism is slidably mounted on one side of each base plate. Storage boxes are mounted on both end side walls of the mounting frame, and multiple pins are mounted inside each storage box. One end of each pin has an arc-shaped breakable notch, and the other end has an elastic locking head. A linkage mechanism that drives the triggering mechanism is mounted on both end side walls of the mounting frame.

[0008] According to some embodiments of the present invention, the base plate is installed to the main frame by bolts, a notch is provided on one side of the base plate, a limiting rod and a first spring are provided on the side wall of the notch, and two positioning uprights are provided at the bottom end of the notch.

[0009] According to some embodiments of the present invention, one side of the mounting frame is open, and the side wall of the mounting frame is provided with a bearing hole for hinged main rod and a pin hole for insertion and engagement with the pin rod. Sliding grooves are provided on both ends of the side wall of the mounting frame. A fixing cover is provided on one side of the opening of the mounting frame, and the cross-section of the fixing cover is U-shaped.

[0010] According to some embodiments of the present invention, a reinforcing rod is provided on one side of the main rod, and an arc-shaped notch corresponding to the position of the pin hole is provided on one side of the reinforcing rod. A second spring is provided at the other end of the main rod, and the other end of the second spring is connected to the bottom wall of the mounting frame.

[0011] According to some embodiments of the present invention, the triggering mechanism includes a slider slidably connected to a limiting rod, one end of the slider being connected to a first spring, two sliding limiting grooves slidably connected to a positioning rod being provided on the slider, a triggering arm being provided on one side of the slider, an inclined slot being provided at the top of the slider, a wireless controller being provided at the top of the slider, and two electric grippers for clamping the pin rod being provided at the other end of the slider, the two electric grippers being electrically connected to the wireless controller via wires.

[0012] According to some embodiments of the present invention, the storage box has a feed inlet at its top, a cover plate hinged to the inner cavity of the feed inlet, a third spring at the top of the cover plate, a discharge outlet on one side of the storage box, and an elastic baffle block at the bottom of the discharge outlet; electric push rods are provided on both side walls of the storage box, and a weak magnetic ring is provided on the output end of each of the two electric push rods; a ring box is provided at the other end of the storage box, and multiple pin rings are provided inside the ring box; a trigger button electrically connected to the electric push rod is also provided on the side wall of the storage box.

[0013] According to some embodiments of the present invention, the linkage mechanism includes an elastic compression airbag disposed on the top wall of the fixed cover. One end of the elastic compression airbag is connected to two through pipes, and the other end of each of the two through pipes is connected to a pneumatic telescopic rod. The other end of the pneumatic telescopic rod is provided with a discharge push block. The discharge push block is slidably connected to the inner cavity of the slide groove. One side of the discharge push block is arc-shaped. The top end of the discharge push block is provided with a linkage rod. The linkage rod is connected to a third spring. The other end of the linkage rod is provided with a conical push post that cooperates with the inclined slot. One end of the linkage rod is slidably connected to a positioning block. One end of the positioning block is connected to the side wall of the mounting frame.

[0014] According to some embodiments of the present invention, one end of the main frame is provided with a connecting arm, one end of the connecting arm is connected to a implement connecting rod, the top of the main frame is provided with a lifting seat, and the end with the lifting seat is provided with a lifting rod hinged to the implement connecting rod.

[0015] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention achieves integrated operation of removing broken pins and automatically replacing them with new ones through the coordinated linkage mechanism and triggering mechanism. When the main rod is lifted, it squeezes the elastic compression airbag, causing the gas to push the pneumatic telescopic rod to extend through the pipe, which in turn drives the unloading push block to slide along the slide groove, pushing the broken pin out of the pin hole. Then, the conical push column on the linkage rod pushes the slider to slide, triggering the wireless controller to control the electric gripper to release the pin, and triggering the button to start the electric push rod, completing the insertion of the pin and fixing of the pin ring. The entire process does not require manual disassembly, cleaning, and replacement, thus saving manual operation time, reducing downtime losses, improving the overall efficiency of agricultural machinery plowing operations, and solving the problems of cumbersome pin replacement and disruption of operation in the prior art.

[0016] 2. This invention utilizes a second spring, a third spring, an elastic compression airbag, and a pneumatic telescopic rod to form an automatic reset structure. After the pin is replaced, the elastic force of the second spring drives the main rod to quickly reset, ensuring precise positioning between the main rod and the pin. Simultaneously, the third spring pushes the linkage rod and the unloading push block to reset, and the gas in the pneumatic telescopic rod flows back to the elastic compression airbag through the pipe, restoring the entire mechanism to its initial working state without manual intervention. Furthermore, by electrically connecting the trigger button to the alarm system in the tractor cab, real-time feedback on pin breakage and replacement information can be provided, allowing operators to promptly grasp the operating status of the mechanism. This reduces the operator's workload, improves operational safety and convenience, and solves the shortcomings of existing agricultural machinery plowing mechanisms that require manual operation for reset and whose operating status is difficult to monitor in real time.

[0017] 3. This invention utilizes a pin rod, a reinforcing rod, and a second spring to form a targeted overload protection structure. A pre-set fracture threshold is achieved by using an arc-shaped breakable notch at the end of the pin rod. When the plowshare encounters obstacles such as stones, generating overload resistance, the resistance is transmitted through the main rod and reinforcing rod to the breakable notch of the pin rod. When the resistance exceeds the pre-set fracture threshold, the pin rod breaks precisely, releasing the positioning restriction on the main rod. Under the combined action of the resistance and the second spring, the main rod swings and lifts the plowshare, effectively preventing deformation and damage to the main rod and plowshare caused by rigid impact. This reduces maintenance costs and frequency, while also preventing agricultural machinery shutdowns due to plowshare jamming, ensuring continuous plowing operations, and extending the service life of components such as the main rod and plowshare. This invention solves the defects of existing agricultural machinery plowing mechanisms, which lack effective overload protection and are prone to component damage due to obstacles.

[0018] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0019] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the plowshare cutter in its unfolded state according to the present invention; Figure 3 This is a schematic diagram of the pneumatic telescopic rod and unloading pusher structure of the present invention; Figure 4 This is a schematic diagram of the positioning block structure of the present invention; Figure 5 This is a schematic diagram of the triggering mechanism structure of the present invention; Figure 6 This is a schematic diagram of the limiting rod structure of the present invention; Figure 7 This is a schematic diagram of the elastic compression airbag structure of the present invention; Figure 8 This is a schematic diagram of the main rod and reinforcing rod structure of the present invention; Figure 9 This is a schematic diagram of the trigger arm and trigger button structure of the present invention; Figure 10 This is a schematic diagram of the elastic stop block structure of the present invention; Figure 11 This is a schematic diagram of the ring box and pin ring structure of the present invention.

[0021] In the diagram: 1. Main frame; 2. Base plate; 3. Mounting frame; 4. Main rod; 5. Plowshare cutter; 6. Trigger mechanism; 61. Slider; 62. Trigger arm; 63. Angled slot; 64. Wireless controller; 65. Electric gripper; 7. Storage box; 71. Pin rod; 72. Cover plate; 73. Third spring; 74. Elastic stop block; 75. Electric push rod; 76. Weak magnetic ring; 77. Ring box; 78. Pin ring; 79. Trigger button; 10. Elastic clamp; 8. Linkage mechanism; 81. Elastic compressed air bladder; 82. Through pipe; 83. Pneumatic telescopic rod; 84. Unloading push block; 85. Linkage rod; 86. Conical push column; 87. Positioning block; 9. Limiting rod; 10. First spring; 11. Positioning upright; 12. Slide groove; 13. Fixing cover; 14. Reinforcing rod; 15. Second spring; 16. Connecting arm; 17. Implement connecting rod; 18. Lifting seat; 19. Lifting rod. Detailed Implementation

[0022] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0023] like Figures 1-11 As shown, a highly wear-resistant agricultural machinery plowing clamping mechanism includes a main frame 1. Multiple base plates 2 are mounted on the bottom of the main frame 1. A mounting frame 3 is provided on one side of each base plate 2. A main rod 4 is hinged to the inner cavity of each mounting frame 3, and a plowshare blade 5 is provided at one end of each main rod 4. A triggering mechanism 6 is slidably provided on one side of each base plate 2. Storage boxes 7 are provided on both end side walls of the mounting frame 3. Multiple pins 71 are provided inside the storage boxes 7. One end of each pin 71 has an arc-shaped breakable notch, and the other end has an elastic locking head 710. A linkage mechanism that drives the triggering mechanism 6 is provided on both end side walls of the mounting frame 3. The main frame 1 provides a stable mounting base for the entire mechanism, the base plate 2 enhances the support stability of the main frame 1, the mounting frame 3 provides a mounting carrier for the main working parts, and the plowshare 5 enables efficient plowing operations. The arc-shaped breakable notch of the pin rod 71 provides structural protection for overload protection, the elastic clip 710 facilitates the precise matching and fixing of the pin rod 71 with the pin hole, the storage box 7 can store the pin rod 71 to be replaced, and the transmission cooperation between the linkage mechanism 8 and the triggering mechanism 6 provides the main support for subsequent overload protection, automatic pin replacement and mechanism reset, ensuring the stability and reliability of the overall operation of the mechanism.

[0024] The base plate 2 is installed to the main frame 1 by bolts. A notch is provided on one side of the base plate 2, and a limiting rod 9 and a first spring 10 are provided on the side wall of the notch. Two positioning rods 11 are provided at the bottom end of the notch. The base plate 2 is detachably connected to the main frame 1 by bolts, which facilitates the subsequent maintenance, repair and replacement of the base plate 2 and related components, and reduces maintenance costs. The limiting rod 9 and positioning rods 11 provided in the notch can accurately guide and limit the slider 61 of the triggering mechanism 6, and prevent the slider 61 from deviating during the sliding process. With the help of the first spring 10, the slider 61 can achieve stable sliding and automatic reset, providing a structural guarantee for the smooth linkage of the triggering mechanism 6 and ensuring accurate and reliable triggering action.

[0025] One side of the mounting frame 3 is open. The side wall of the mounting frame 3 has bearing holes for hinged connection of the main rod 4 and pin holes for insertion with the pin rod 71. Sliding grooves 12 are provided on both ends of the mounting frame 3. A fixing cover 13 is provided on the open side of the mounting frame 3. The outer surfaces of the base plate 2, fixing cover 13, and mounting frame 3 are coated with an epoxy ceramic wear-resistant coating. The fixing cover 13 has a U-shaped cross-section. The open design on one side of the mounting frame 3 facilitates the hinged installation of the main rod 4, subsequent maintenance, and component replacement, improving operational convenience. The bearing holes ensure the flexibility of the hinged rotation of the main rod 4 and reduce rotational friction wear. The main rod 4 is reliably positioned, ensuring the plowshare blade 5 maintains a stable posture during plowing and improving plowing quality. The slide groove 12 provides a stable track for the sliding of the unloading push block 84, ensuring the smooth movement of the unloading push block 84 to remove the broken push block 71. The outer wall of the push block 71 is coated with a tungsten carbide wear-resistant coating using supersonic spraying. The U-shaped fixing cover 13 can seal, dustproof, and protect the internal linkage mechanism 8 from collisions, preventing soil and debris from entering and affecting the operating accuracy of the linkage mechanism 8, further improving the durability of the mechanism.

[0026] A reinforcing rod 14 is provided on one side of the main rod 4. An arc-shaped notch corresponding to the position of the pin hole is opened on one side of the reinforcing rod 14. A second spring 15 is provided at the other end of the main rod 4. The other end of the second spring 15 is connected to the bottom wall of the mounting frame 3. The reinforcing rod 14 can effectively enhance the structural strength and load-bearing capacity of the main rod 4, prevent the main rod 4 from deforming or being damaged due to long-term plowing resistance, and extend the service life of the main rod 4. The arc-shaped notch and the pin rod 71 are precisely matched to achieve a firm positioning of the main rod 4, ensuring that the plowshare 5 maintains a stable posture during plowing and improving the plowing quality. The second spring 15 can use its own elasticity to drive the main rod 4 to quickly reset after the pin rod 71 breaks, ensuring the accurate positioning of the pin rod 71 in the future. At the same time, it buffers the impact force when the main rod 4 swings, further protecting the main rod 4 and related components from damage.

[0027] The triggering mechanism 6 includes a slider 61 slidably connected to the limiting rod 9. One end of the slider 61 is connected to the first spring 10. Two sliding limiting grooves are formed on the slider 61, which are slidably connected to the positioning rod 11. The inner walls of the sliding limiting grooves are coated with a graphite solid lubricant wear-resistant coating to reduce sliding friction and wear. A trigger arm 62 is provided on one side of the slider 61, and a slanted slot 63 is provided at the top of the slider 61. A wireless controller 64 is provided at the top of the slider 61. Two electric grippers 65 for clamping the pin rod 71 are provided at the other end of the slider 61. The two electric grippers 65 are electrically connected to the wireless controller 64 via wires. The slider 61 achieves precise sliding through the limiting rod 9 and the positioning rod 11. The sliding limiting grooves further enhance the sliding performance of the slider 61. The stability and guidance of the movement prevent the slider 61 from deviating and causing the triggering action to fail; the trigger arm 62 can precisely cooperate with the trigger button 79 on the storage box 7 to realize the timely triggering of the electric push rod 75 and ensure the orderly progress of the pin replacement process; the inclined slot 63 cooperates with the conical push column 86 on the linkage rod 85 to transmit the power of the linkage mechanism 8 to the slider 61, realizing the automatic drive of the slider 61; the wireless controller 64 is electrically connected to the electric gripper 65, which can realize the automatic release and clamping of the pin rod 71 without manual intervention, providing control guarantee for automatic pin replacement and improving work efficiency and convenience; the friction mating surfaces of the slider 61, the unloading push block 84, and the arc-shaped bayonet of the reinforcing rod 14 are sprayed with a wear-resistant polyurea layer to improve the wear resistance.

[0028] The storage box 7 has a feed inlet at its top, and a cover plate 72 is hinged to the inner cavity of the feed inlet. A third spring 73 is located at the top of the cover plate 72. A discharge outlet is located on one side of the storage box 7, and an elastic baffle block 74 is located at the bottom of the discharge outlet. Electric push rods 75 are located on both side walls of the storage box 7, and a weak magnetic ring 76 is located on the output end of each electric push rod 75. A ring box 77 is located at the other end of the storage box 7, and multiple pin rings 78 are located inside the ring box 77. A trigger button 79 electrically connected to the electric push rod 75 is also located on the side wall of the storage box 7. The storage box 7 can centrally store the pin rods 71, facilitating the replenishment of the pin rods 71 ​​at any time and ensuring the continuity of operation. (Feed inlet) The hinged cover 72, in conjunction with the third spring 73, facilitates the insertion of the pin 71 into the storage box 7 while effectively preventing soil and debris from entering the storage box 7 and contaminating the pin 71, thus ensuring the accuracy of the pin 71. The elastic stop block 74 can limit the pin 71 inside the storage box 7, preventing it from falling out, while not affecting its normal extension. The electric push rod 75, in conjunction with the weak magnetic ring 76, can automatically insert the pin 71 and automatically attract and fix the pin ring 78. The trigger button 79 can precisely control the action of the electric push rod 75, ensuring that the pin replacement process is efficient and accurate, further improving the automation level of the mechanism.

[0029] The linkage mechanism 8 includes an elastic compression airbag 81 mounted on the top wall of the fixed cover 13. One end of the elastic compression airbag 81 is connected to two through pipes 82, and the other end of each through pipe 82 is connected to a pneumatic telescopic rod 83. The other end of the pneumatic telescopic rod 83 is provided with a discharge push block 84, which is slidably connected to the inner cavity of the slide groove 12. One side of the discharge push block 84 is arc-shaped, and the top of the discharge push block 84 is provided with a linkage rod 85, which is connected to a third spring 73. The other end of the linkage rod 85 is provided with a conical push post 86 that mates with the inclined slot 63. One end of the linkage rod 85 is slidably connected to a positioning block 87, and one end of the positioning block 87 is connected to the side wall of the mounting frame 3. The components of the linkage mechanism 8 cooperate to provide elasticity. After being compressed by the main rod 4, the compressed air bag 81 can introduce gas into the pneumatic telescopic rod 83 through the pipe 82, realizing the automatic extension and retraction of the pneumatic telescopic rod 83, which in turn drives the unloading push block 84 to slide along the slide groove 12. The arc-shaped structure of the unloading push block 84 can precisely abut against the broken pin rod 71, ensuring that the broken pin rod 71 is completely pushed out of the pin hole, avoiding blockage of the pin hole, and providing space for the insertion of the pin rod 71. The linkage rod 85, together with the conical push column 86, can transmit power to the slider 61, driving the trigger mechanism 6 to act. The positioning block 87 can limit and guide the linkage rod 85, ensuring that the sliding of the linkage rod 85 is accurate and stable, ensuring the integrated linkage of broken pin removal and automatic pin replacement, and improving the continuity and reliability of the mechanism operation.

[0030] One end of the main frame 1 is provided with a connecting arm 16, and one end of the connecting arm 16 is connected to a implement connecting rod 17. The top of the main frame 1 is provided with a lifting seat 18, and one end of the lifting seat 18 is provided with a lifting rod 19 that is hinged to the implement connecting rod 17. The connecting arm 16 and the implement connecting rod 17 cooperate to achieve a stable connection between the mechanism and the agricultural machinery, ensuring that the agricultural machinery can stably drive the mechanism to carry out plowing operations when it is moving, and avoiding loose connections that affect the quality of operation. The lifting seat 18 and the lifting rod 19 cooperate to realize the lifting and lowering adjustment of the mechanism, which makes it easy to adjust the height of the plowshare 5 according to the plowing depth, and also makes it easy to quickly lift the plowshare 5 after the operation is completed or in special circumstances, improving the flexibility and convenience of operation and adapting to the plowing operation needs in different scenarios.

[0031] Working principle: In actual plowing operations, the workflow and inter-component relationships of this organization are as follows, specifically divided into the following four stages: I. Overload Protection Stage: When the agricultural machinery is plowing, the plowshare 5 inserts into the soil and completes the plowing action as the machinery moves. When the plowshare 5 encounters obstacles such as stones in the soil, the obstacles will create resistance, which is transmitted to the main rod 4 through the plowshare 5. Since the arc-shaped notch of the reinforcing rod 14 on one side of the main rod 4 forms a positioning and insertion fit with the pin 71, the above resistance will directly act on the arc-shaped breakage notch of the pin 71. When the resistance exceeds the preset breakage threshold of the pin 71, the arc-shaped notch of the reinforcing rod 14 squeezes the pin 71, causing the pin 71 to break along the breakage notch. The notch breaks; after the pin 71 breaks, it releases the positioning restriction on the main rod 4 hinged to the mounting frame 3, swings under the action of resistance and pulls the second spring 15, thereby driving the plowshare 5 to lift upward, realizing overload protection for the main rod 4 and the plowshare 5; the breakage of the pin 71 protects the main rod 4 and the plowshare 5, preventing the plowshare 5 from being damaged by rigid impact due to stones when plowing, reducing the frequency and cost of component maintenance, and at the same time preventing agricultural machinery operation failures caused by the plowshare 5 jamming, ensuring the continuity of plowing operations, and effectively extending the service life of the main rod 4 and the plowshare 5.

[0032] II. Broken Pin Removal Stage: During the upward lifting of the main rod 4, its end will squeeze the elastic compression airbag 81 in the linkage mechanism 8, causing the gas in the elastic compression airbag 81 to be introduced into the pneumatic telescopic rod 83 through the through pipe 82. After the gas enters, it pushes the pneumatic telescopic rod 83 to extend. The extended pneumatic telescopic rod 83 drives the unloading push block 84 to slide along the slide groove 12 to the bottom. Since one side of the unloading push block 84 has an arc-shaped structure design, it can effectively contact the broken pin rod 71 during its sliding process, and push the broken pin rod 71 out of the pin hole of the mounting frame 3. During this process, the broken pin rod 71 remaining in the pin hole can be removed, providing sufficient space for the subsequent insertion of the pin rod 71, avoiding the broken pin rod 71 blocking the pin hole, ensuring that the pin rod 71 can be smoothly inserted and positioned, ensuring the normal linkage of the linkage mechanism 8 and the triggering mechanism 6, and preventing the mechanism from failing to reset properly and subsequent operations from being unable to proceed smoothly due to the blockage of the pin hole.

[0033] III. Automatic Pin Changing Stage: When the unloading pusher 84 moves to the bottom and completely pushes the broken pin 71 out of the pin hole, the tapered pusher 86 at the end of the linkage rod 85 inserts into the inclined slot 63 on the slider 61. Through the inclined surface cooperation, the slider 61 is pushed to slide along the limit rod 9, while the slider 61 compresses the first spring 10. At this time, the wireless controller 64 on the slider 61 sends a control signal to control the electric gripper 65 to open and release the pin 71 in the storage box 7, so that the pin 71 moves out along the discharge port of the storage box 7. As the slider 61 continues to slide, the trigger arm 62 on one side abuts against the trigger button 79 on the side wall of the storage box 7, and the trigger button 79 triggers. A signal is sent to activate two electric push rods 75; one electric push rod 75 pushes the pin rod 71 into the pin hole of the mounting frame 3 to complete the positioning of the main rod 4; the other electric push rod 75 attracts the pin ring 78 in the ring box 77 through the weak magnetic ring 76 at its output end, and pushes the pin ring 78 to the end of the pin rod 71. The pin ring 78 is locked and fixed by the elastic clip 710 at the end of the pin rod 71, thus completing the automatic replacement of the pin rod 71. The automatic replacement of the pin rod 71 is achieved through this structure, without the need for manual disassembly and replacement operations, saving manual operation time and downtime losses, and effectively improving the overall efficiency of agricultural machinery plowing operations.

[0034] IV. Mechanism Reset Stage: It should be noted that the main rod 4, after being compressed by the elastic compression airbag 81, retracts and resets faster under the elastic force of the second spring 15 than the speed at which the gas extrusion unloading push block 84 and the trigger arm 62 contact the trigger button 79. Because the tapered push column 86 only contacts the inclined slot 63 of the slider 61 after the unloading push block 84 moves to the bottom and pushes the broken pin rod 71 out of the pin hole, there is a preset time difference between the two. The reset action of the main rod 4 occurs after the unloading push block 84 pushes out the broken pin rod 71, and later than the action of the electric push rod 75 pushing the pin rod 71 into the pin hole, ensuring that the main rod 4 can reset with the pin. The precise alignment of lever 71 achieves positioning; finally, the third spring 73 releases its elastic force, pushing the linkage lever 85 and the unloading push block 84 to reset. The pneumatic telescopic lever 83 contracts under the action of internal gas recirculation, and the gas flows back to the elastic compression air bag 81 through the pipe 82, restoring the entire mechanism to its initial working state and providing structural protection for the next overload protection and automatic pin replacement action. The entire mechanism achieves automatic reset without manual intervention, and the early warning function can be further optimized. By connecting the trigger button 79 to the alarm prompt system in the tractor cab, the operator can obtain relevant information about the breakage and replacement of the pin lever 71 as soon as possible and keep abreast of the operating status of the mechanism.

[0035] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A highly wear-resistant agricultural machinery plowing clamping mechanism, characterized in that, Includes a main frame (1), with multiple base plates (2) installed at the bottom of the main frame (1), and a mounting frame (3) provided on one side of each of the multiple base plates (2). A main rod (4) is hinged to the inner cavity of each mounting frame (3), and a plowshare (5) is provided at one end of each main rod (4). A triggering mechanism (6) is slidably provided on one side of each base plate (2). Storage boxes (7) are provided on both side walls of the mounting frame (3), and multiple pins (71) are provided in the inner cavity of each storage box (7). An arc-shaped easy-break notch is provided at one end of each pin (71), and an elastic clip (710) is provided at the other end of each pin (71). A linkage mechanism (8) that drives the triggering mechanism (6) is provided on both side walls of the mounting frame (3).

2. The agricultural machinery plowing clamping mechanism with high wear resistance according to claim 1, characterized in that, The bottom support plate (2) is installed to the main frame (1) by bolts. A notch is provided on one side of the bottom support plate (2). A limiting rod (9) and a first spring (10) are provided on the side wall of the notch. Two positioning rods (11) are provided at the bottom end of the notch.

3. The agricultural machinery plowing clamping mechanism with high wear resistance according to claim 2, characterized in that, The mounting frame (3) has an opening on one side. The side wall of the mounting frame (3) is provided with a bearing hole for hinged connection of the main rod (4) and a pin hole for insertion and cooperation with the pin rod (71). Sliding grooves (12) are provided on both sides of the mounting frame (3). A fixing cover (13) is provided on one side of the opening of the mounting frame (3). The cross section of the fixing cover (13) is U-shaped.

4. The agricultural machinery plowing clamping mechanism with high wear resistance according to claim 3, characterized in that, A reinforcing rod (14) is provided on one side of the main rod (4). An arc-shaped notch corresponding to the pin hole is opened on one side of the reinforcing rod (14). A second spring (15) is provided at the other end of the main rod (4). The other end of the second spring (15) is connected to the bottom wall of the mounting frame (3).

5. The agricultural machinery plowing clamping mechanism with high wear resistance according to claim 4, characterized in that, The triggering mechanism (6) includes a slider (61) slidably connected to the limiting rod (9). One end of the slider (61) is connected to the first spring (10). Two sliding limiting grooves are provided on the slider (61) and slidably connected to the positioning rod (11). A trigger arm (62) is provided on one side of the slider (61). A slanted slot (63) is also provided at the top of the slider (61). A wireless controller (64) is provided at the top of the slider (61). Two electric grippers (65) for clamping the pin rod (71) are provided at the other end of the slider (61). The two electric grippers (65) are electrically connected to the wireless controller (64) through wires.

6. The agricultural machinery plowing clamping mechanism with high wear resistance according to claim 1, characterized in that, The storage box (7) has a feed inlet at the top, and a cover plate (72) is hinged to the inner cavity of the feed inlet. A third spring (73) is provided at the top of the cover plate (72). The storage box (7) also has a discharge port on one side, and an elastic baffle block (74) is provided at the bottom of the discharge port. Both sides of the storage box (7) are provided with electric push rods (75). The output ends of the two electric push rods (75) are provided with weak magnetic rings (76). The other end of the storage box (7) is provided with a ring box (77), and multiple pin rings (78) are provided inside the ring box (77). The side wall of the storage box (7) is also provided with a trigger button (79) that is electrically connected to the electric push rod (75).

7. The agricultural machinery plowing clamping mechanism with high wear resistance according to claim 1, characterized in that, The linkage mechanism (8) includes an elastic compression airbag (81) installed on the top wall of the fixed cover (13). One end of the elastic compression airbag (81) is connected to two through pipes (82), and the other end of each of the two through pipes (82) is connected to a pneumatic telescopic rod (83). The other end of the pneumatic telescopic rod (83) is provided with a discharge push block (84). The discharge push block (84) is slidably connected to the inner cavity of the slide groove (12). One side of the discharge push block (84) is arc-shaped. The top of the discharge push block (84) is provided with a linkage rod (85). The linkage rod (85) is connected to a third spring (73). The other end of the linkage rod (85) is provided with a conical push column (86) that cooperates with the inclined slot (63). One end of the linkage rod (85) is slidably connected to a positioning block (87). One end of the positioning block (87) is connected to the side wall of the mounting frame (3).

8. The agricultural machinery plowing clamping mechanism with high wear resistance according to claim 1, characterized in that, One end of the main frame (1) is provided with a connecting arm (16), one end of the connecting arm (16) is connected to a farm implement connecting rod (17), the top of the main frame (1) is provided with a lifting seat (18), and one end of the lifting seat (18) is provided with a lifting rod (19) hinged to the farm implement connecting rod (17).

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