Multi-field self-adjusting execution rocker arm

Abstract

The invention belongs to the technical field of forestry engineering maintenance, and particularly relates to a multi-field self-adjusting execution rocker arm which comprises a girder, a working arm, a connecting frame and a mounting seat. According to the invention, the motor I, the motor II and the motor III are controlled through the external integrated console. The mounting base mounting bolt is assembled on the movable carrier, then the positioning ring makes contact with the working face for use, and the positioning ring achieves the spraying effect on trunks or branches through the spraying holes in the inner side. When a working face is changed, for example, the diameter of a trunk is changed, a third motor drives a worm, when the worm rotates, a thread of the worm makes contact with a third shifting wheel, the third shifting wheel can be made to rotate, then a second shifting wheel is driven to rotate, when the second shifting wheel rotates, a shifting cylinder is shifted, a first shifting wheel is driven, then the first shifting wheel drives a second lead screw, and the second lead screw is driven to rotate. When the second lead screw rotates, the connecting rods on the two sides drive the positioning rings to move synchronously, and therefore the distance between the positioning rings is adjusted.

Description

Technical Field

[0001] This invention relates to the field of forestry engineering maintenance technology, specifically to a multi-field self-adjusting actuator rocker arm. Background Technology

[0002] As an important component of the ecological barrier system, trees along the Yellow River have ecological functions such as reinforcing dikes and protecting riverbanks, and preventing soil erosion. Tree diseases and pests are often prevalent and frequent, affecting the overall appearance of the project. Whitewashing trees, as an important means of preventing pests and frost damage, is widely used in the maintenance of the Yellow River flood control project. Traditional whitewashing methods mainly rely on manual labor.

[0003] Existing technologies have the following shortcomings: Currently, this operation mainly relies on traditional manual methods, which are characterized by low efficiency, difficulty in guaranteeing quality, and high overall costs. Faced with long stretches of protective forest along dikes, traditional manual operations are slow and cannot meet the requirements of large-scale, time-sensitive maintenance. In practice, the coating quality is significantly affected by the operator's skill and physical strength, often resulting in uneven coating thickness, missed areas, or incomplete bottom coverage, severely weakening the expected effects of the whitewash layer in terms of insect prevention and frost resistance. Simultaneously, the high-intensity repetitive labor leads to continuously increasing labor input and maintenance costs, hindering the improvement of the overall efficiency of engineering maintenance. It is worth noting that existing specialized tree trunk painting machinery on the market also suffers from structural design limitations; its end-positioning mechanism often lacks flexibility, limiting its application to a single tree trunk spraying task and making it unsuitable for other diverse operational scenarios, thus restricting its widespread application value. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a multi-domain self-adjusting actuator arm, solving the problem of poor versatility currently existing.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-field self-adjusting rocker arm, including a main beam, a working arm, a connecting frame, and a mounting base. A clamping plate is provided at the end of the working arm, and a positioning ring for positioning the working surface is provided on the side end of the clamping plate. A freely rotatable connecting shaft is provided on the inner side of the clamping plate, and a connecting rod is provided at the end of the positioning ring facing the connecting shaft. A lead screw is inserted into the inside of the connecting rod.

[0006] A gear four for transmission is provided on one side of the connecting shaft.

[0007] A gear three is provided on the side end of the gear four.

[0008] A dial is fitted on the outside of the lead screw 2 to control its rotation.

[0009] A lever is fitted onto the outside of the connecting shaft.

[0010] In some embodiments, the positioning ring has a semi-enclosed annular structure, and several sets of spray holes for spraying the agent are opened on the inner side of the positioning ring.

[0011] In some embodiments, the connecting rod and the positioning ring are connected to the inner side of the clamping plate by a lead screw, and the positioning ring rotates with the rotation of the clamping plate.

[0012] In some embodiments, the lead screws are positioned in a mirror-symmetrical manner on both sides of the midpoint of the connecting shaft.

[0013] In some embodiments, a second motor is provided on the side of the gear three to provide driving force to the connecting shaft. The output end of the second motor is connected to the gear three. The second motor transmits power to the connecting shaft through the meshing relationship between the gear three and the gear four, thereby driving the clamping plate and the positioning ring to rotate.

[0014] In some embodiments, a second dial wheel is provided above the dial cylinder to control the dial cylinder to slide outside the connecting shaft. A shaft is provided in the middle of the second dial wheel to support its rotation. A third dial wheel for transmission is also sleeved outside the shaft. A worm gear is provided below the third dial wheel to control the rotation of the third dial wheel. The end of the worm gear is provided with a motor three for providing driving force and controlling the worm gear; The outer side of the dial is provided with multiple sets of equally spaced annular bodies.

[0015] In some embodiments, a ball nut base is provided at the lower end of the main beam, a lead screw is inserted inside the ball nut base, baffles are bolted to both sides of the main beam, and the top of the ball nut base is embedded in the side end of the main beam.

[0016] In some embodiments, the main beam is detachably bolted to the side of the working arm, and crossbars are provided between the baffles to improve the stability of the main beam's movement.

[0017] In some embodiments, the side end of the ball nut base is provided with a connecting frame to help it achieve positioning and installation. The connecting frame is detachably assembled to the top of the mounting base by bolts, and then installed on a mobile vehicle by the mounting base to achieve mobile operation.

[0018] In some embodiments, a main shaft is provided on the top of the mounting base, the top of the main shaft is connected to a ball nut base, a gear one for transmission is provided at the bottom of the main shaft, a gear two is meshed on the side end of the gear one, and a motor one for providing driving force is provided at the bottom of the gear two. The bottom of the gear is equipped with a bearing seat, and the bearing seat is connected to the motor through an outer block structure to fix its position. The motor is fixed to the carrier after the mounting base is installed.

[0019] Compared with the prior art, the present invention provides a multi-domain self-adjusting actuator arm, which has the following beneficial effects: The multi-field self-adjusting rocker arm is controlled by an external integrated control console, which controls motors one, two, and three. It is mounted on a mobile carrier using mounting bolts, and then operates by contacting the working surface with positioning rings. The positioning rings spray the trunk or branches through inner nozzles. When the working surface changes, such as a change in trunk diameter, motor three drives a worm gear. When the worm gear rotates, its threads contact with dial wheel three, causing dial wheel three to rotate, which in turn drives dial wheel two. The rotation of dial wheel two then moves a shifting cylinder, causing it to shift and drive dial wheel one. Dial wheel one then drives lead screw two. The rotation of lead screw two causes the connecting rods on both sides to move the positioning rings synchronously, thus adjusting the positioning ring spacing. Alternatively, the ball bearing nut base and lead screw one can be used to achieve radial translation of the beam and working arm, thereby adjusting the specific working position. The above setup and process allow this structure, compared to traditional tree painting equipment, to be adjusted according to the operator's actual needs through the coordination of mechanical structures. This greatly improves its flexibility and expands its applicability, enabling it to be used in different work steps. Attached Figure Description

[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 side end structure of the present invention; Figure 3 This is a schematic diagram of the cross-section of the working arm of the present invention and the internal lever mounting position. Figure 4 This is a schematic diagram of the connection position structure of gear one and gear two in this invention; Figure 5 This is a schematic diagram of the installation positions of the lever and three dials of the present invention; Figure 6 This is a schematic diagram of the crossbar distribution position and the lead screw connection position of the present invention; Figure 7 This is a schematic diagram of the inner structure of the positioning ring of the present invention.

[0021] In the diagram: 1. Main beam; 2. Working arm; 3. Connecting frame; 4. Ball bearing nut base; 5. Main shaft; 6. Mounting seat; 7. Lead screw one; 8. Gear one; 9. Gear two; 10. Motor one; 11. Baffle; 12. Crossbar; 13. Storage box; 14. Clamping plate; 15. Positioning ring; 16. Spray nozzle; 17. Connecting shaft; 18. Motor two; 19. Gear three; 20. Gear four; 21. Dial cylinder; 22. Dial wheel one; 23. Lead screw two; 24. Connecting rod; 25. Dial wheel two; 26. Dial wheel three; 27. Worm gear; 28. Motor three. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0023] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] Please see Figure 1-7In this implementation scheme: a multi-field self-adjusting rocker arm includes a main beam 1, a working arm 2, a connecting frame 3, and a mounting base 6. A clamping plate 14 is provided at the end of the working arm 2, and a positioning ring 15 for positioning the working surface is provided on the side of the clamping plate 14. A freely rotatable connecting shaft 17 is provided on the inner side of the clamping plate 14. After the rotation of the positioning ring 15 is associated with the rotation of the connecting shaft 17, the positioning ring 15 can perform different types of operations as needed, such as pesticide spraying, trunk injection, and protective agent application. The angular rotation of the positioning ring 15 can also make it applicable to tree branches facing different angles.

[0026] Positioning ring 15 has a semi-enclosed ring structure (such as...) Figure 3 As shown, several sets of nozzles 16 for spraying the agent are opened on the inner side of the positioning ring 15.

[0027] To enable angle adjustment of the positioning ring 15, the clamping plate 14 is fixedly installed at the end of the connecting shaft 17, and a connecting rod 24 is provided at the end of the positioning ring 15 facing the connecting shaft 17 (e.g., Figure 7 As shown), a lead screw 23 is inserted inside the connecting rod 24. The connecting rod 24 and the positioning ring 15 are connected to the inner side of the clamping plate 14 through the lead screw 23. Thus, the positioning ring 15 rotates with the rotation of the clamping plate 14, and the clamping plate 14 can rotate with the connecting shaft 17 through the connection with the connecting shaft 17. It should be noted that the lead screw 23 is positioned in a mirror-symmetrical manner on both sides of the midpoint of the connecting shaft 17. Therefore, the thread directions of the lead screw 23 on both sides are opposite (e.g., ...). Figure 5 (As shown).

[0028] A gear 4 20 for transmission is provided at the other end of the connecting shaft 17, and a gear 3 19 is meshed on the side end of the gear 4 20. A motor 2 18 for providing driving force to the connecting shaft 17 is provided on the side of the gear 3 19. The output end of the motor 2 18 is connected to the gear 3 19. Thus, the motor 2 18 transmits power to the connecting shaft 17 through the meshing relationship between the gear 3 19 and the gear 4 20, thereby driving the clamping plate 14 and the positioning ring 15 to rotate.

[0029] Since the diameters of different tree trunks, wooden stakes and other working surfaces are different, in order to adjust the opening and closing distance between the positioning rings 15, a dial wheel 22 is fitted in the middle of the two lead screws 23 on both sides to control the rotation of the lead screws 23. When the dial wheel 22 rotates, the lead screws 23 rotate at the same time. Since the threads on both sides are opposite, the connecting rods 24 on both sides drive the positioning rings 15 to move outward or inward at the same time. The direction of this translation depends on the rotation direction of the dial wheel 22. A dial 21 is sleeved on the outside of the connecting shaft 17, and a second dial 25 is set above the dial 21 to control the sliding of the dial 21 on the outside of the connecting shaft 17. A shaft is set in the middle of the second dial 25 to support its rotation. A third dial 26 for transmission is sleeved on the outside of the shaft. A worm gear 27 for controlling the rotation of the third dial 26 is set below the third dial 26. Thus, when the worm gear 27 rotates, the third dial 26 can be rotated through its thread contact with the third dial 26, thereby driving the second dial 25 to rotate. When the second dial 25 rotates, it moves the dial 21 by actuating the dial 21, which in turn drives the first dial 22. The first dial 22 then drives the second lead screw 23. When the second lead screw 23 rotates, the connecting rods 24 on both sides drive the positioning ring 15 to move synchronously.

[0030] A motor 28 is installed at the end of the worm 27 to provide driving force and control the worm 27.

[0031] It should be noted that the outer side of the dial cylinder 21 is provided with multiple sets of equally spaced rings for transmission when in contact with dial wheel 1 22 and dial wheel 21.

[0032] A ball nut base 4 is installed at the lower end of the main beam 1, and a lead screw 7 is inserted inside the ball nut base 4. The ball nut base 4 is used to drive the lead screw 7 to achieve translational movement. To ensure the stability of the translational movement, baffles 11 are bolted to both sides of the main beam 1, and the top of the ball nut base 4 is embedded in the side end of the main beam 1. This helps to maintain the smooth sliding of the main beam 1. Thus, through the cooperation of the ball nut base 4 and the lead screw 7, the main beam 1 and the working arm 2 can achieve radial translational movement, thereby improving the operational flexibility of the positioning ring 15.

[0033] The main beam 1 is detachably mounted to the side of the working arm 2 by bolts. A crossbar 12 is set between the two side baffles 11. The crossbar 12 is used to improve the stability of the main beam 1 movement.

[0034] A connecting frame 3 is provided on the side of the ball nut base 4 to help it achieve positioning and installation. The connecting frame 3 is detachably assembled to the top of the mounting base 6 by bolts, and then installed on the mobile carrier through the mounting base 6 to achieve mobile operation.

[0035] A main shaft 5 is set on the top of the mounting base 6. The top of the main shaft 5 is connected to the ball nut base 4. A gear 8 for transmission is set at the bottom of the main shaft 5. A gear 9 is meshed on the side end of the gear 8. A motor 10 for providing driving force is set at the bottom of the gear 9. Thus, the gear 8 is driven by the motor 10, thereby rotating the gear 8, which in turn rotates the main shaft 5. The main shaft 5 is connected to the ball nut base 4 at the top, which causes the upper ball nut base 4, the main beam 1 and the working arm 2 to rotate simultaneously. This allows the working position of the positioning ring 15 to be adjusted by rotating different axes, further improving the flexibility of operation and expanding its application range.

[0036] A bearing seat (such as) is installed at the bottom of gear 8. Figure 4 As shown), the bearing is connected to the motor 10 through the outer block structure to achieve position fixation, and the motor 10 is fixed on the carrier after the mounting base 6 is installed.

[0037] By fixing the mounting base 6 to an external electric lifting platform (such as a commercial electric lifting arm or hydraulic lift), lifting operations within an 80 cm range can be achieved using the vertical lifting capacity provided by the external equipment. The mounting base 6 is designed with a standardized mechanical interface to ensure seamless docking with external lifting equipment.

[0038] All motion units (motor-driven lead screw 7, motor 10 driving spindle 5 to rotate, motor 2 18 driving connecting shaft 17 to rotate, and motor 3 28 driving worm gear 27 to rotate) are designed as controlled terminals that receive standard electrical signals (such as PWM, CAN bus, or IO control signals). Through an external central microcontroller control system (such as STM32 or Arduino Mega series), integrating a laser rangefinder (such as a laser rangefinder head) and an angle encoder, fully automatic, high-precision control of the entire rocker arm's spatial posture (including lifting, extension, and swing) and the opening, closing, and angle of the end effector (positioning ring 15) is achieved. The external control system, after calculation, sends coordinated control commands to the rocker arm, directing each motor to work in an orderly manner, ultimately achieving automatic positioning and operation.

[0039] In this embodiment, the operator controls motor 10, motor 28, and motor 38 via an external integrated control console. The mounting base 6 is assembled onto the mobile carrier using mounting bolts, and then the positioning ring 15 contacts the working surface. The positioning ring 15 sprays the trunk or branches through its inner nozzle 16. When the working surface changes, such as a change in the trunk diameter, motor 328 drives the worm gear 27. When the worm gear 27 rotates, its thread contacts the dial wheel 326, causing the dial wheel 326 to rotate, which in turn drives the dial wheel 25 to rotate. The rotation of dial wheel 25, in turn, moves the dial cylinder 21, causing it to shift and driving the dial wheel 12. The dial wheel 12 then drives the lead screw 23. When the lead screw 23 rotates, the connecting rods 24 on both sides move the positioning rings 15 synchronously, thereby adjusting the spacing of the positioning rings 15. The main beam 1 and the working arm 2 can also be radially translated by the cooperation of the ball nut base 4 and the lead screw 7, thereby adjusting the specific working position.

[0040] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A multi-field self-adjusting rocker arm, comprising a main beam (1), a working arm (2), a connecting frame (3), and a mounting base (6), characterized in that: The end of the working arm (2) is provided with a clamping plate (14), and a positioning ring (15) for positioning the working surface is provided on the side end of the clamping plate (14). A freely rotatable connecting shaft (17) is provided on the inner side of the clamping plate (14). A connecting rod (24) is provided on the side end of the positioning ring (15) facing the connecting shaft (17). A lead screw (23) is inserted into the inside of the connecting rod (24). A gear four (20) for transmission is provided on one side of the connecting shaft (17). A gear three (19) is provided on the side end of the gear four (20). A dial wheel (22) for controlling the rotation of the lead screw (23) is sleeved on the outside of the lead screw (23). A dial (21) is sleeved on the outside of the connecting shaft (17).

2. The multi-domain self-adjusting rocker arm according to claim 1, characterized in that: The positioning ring (15) has a semi-enclosed ring structure, and several sets of spray holes (16) for spraying the agent are opened on the inner side of the positioning ring (15).

3. The multi-domain self-adjusting rocker arm according to claim 1, characterized in that: The connecting rod (24) and the positioning ring (15) are inserted into the inner side of the clamping plate (14) through the screw rod (23), and the positioning ring (15) rotates with the rotation of the clamping plate (14).

4. The multi-domain self-adjusting rocker arm according to claim 3, characterized in that: The lead screw 2 (23) is positioned in a mirror-symmetrical manner on both sides of the midpoint of the connecting shaft (17).

5. The multi-domain self-adjusting rocker arm according to claim 4, characterized in that: A motor 2 (18) is provided on the side of the gear 3 (19) to provide driving force to the connecting shaft (17). The output end of the motor 2 (18) is connected to the gear 3 (19). The motor 2 (18) transmits power to the connecting shaft (17) through the meshing relationship between the gear 3 (19) and the gear 4 (20), thereby driving the clamping plate (14) and the positioning ring (15) to rotate.

6. The multi-domain self-adjusting rocker arm according to claim 5, characterized in that: A second dial wheel (25) is provided above the dial (21) to control the dial (21) to slide outside the connecting shaft (17). A shaft is provided in the middle of the second dial wheel (25) to support its rotation. A third dial wheel (26) for transmission is also sleeved on the outside of the shaft. A worm gear (27) for controlling the rotation of the third dial wheel (26) is provided below the third dial wheel (26). The end of the worm (27) is provided with a motor three (28) for providing driving force and controlling the worm (27); The outer side of the dial (21) is provided with multiple sets of equally spaced annular bodies.

7. The multi-domain self-adjusting rocker arm according to claim 1, characterized in that: A ball nut base (4) is provided at the lower end of the main beam (1). A screw rod (7) is inserted inside the ball nut base (4). Baffles (11) are bolted to both sides of the main beam (1) and the top of the ball nut base (4) is embedded in the side end of the main beam (1).

8. The multi-domain self-adjusting rocker arm according to claim 1, characterized in that: The main beam (1) is detachably assembled to the side of the working arm (2) by bolts, and a crossbar (12) is provided between the baffles (11) to improve the stability of the movement of the main beam (1).

9. The multi-domain self-adjusting rocker arm according to claim 7, characterized in that: The ball nut base (4) is provided with a connecting frame (3) on its side to help it achieve positioning and installation. The connecting frame (3) is detachably assembled to the top of the mounting base (6) by bolts, and then installed on the mobile vehicle by the mounting base (6) to achieve mobile operation.

10. The multi-domain self-adjusting rocker arm according to claim 9, characterized in that: The mounting base (6) is provided with a main shaft (5) at the top, the main shaft (5) is connected to a ball nut base (4) at the top, and a gear 1 (8) for transmission is provided at the bottom of the main shaft (5). A gear 2 (9) is meshed at the side end of the gear 1 (8), and a motor 1 (10) for providing driving force is provided at the bottom of the gear 2 (9). The bottom of the gear (8) is equipped with a bearing seat, and the bearing seat is connected to the motor (10) through an outer block structure to achieve position fixation. The motor (10) is fixed on the carrier after the mounting base (6) is installed.

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