Single-oil-cylinder mechanical hydraulic type log grapple

Abstract

The utility model discloses a single-oil-cylinder mechanical hydraulic log grabber, which belongs to the technical field of hydraulic log grabbing machinery and comprises a connecting seat, a swing mechanism is arranged at the top of the connecting seat, and a driving box is fixedly connected to the bottom surface of the connecting seat. According to the wood grabbing device, the hydraulic oil cylinder is used for driving the driving base to move up and down, the spur rack and the spur gear on the side portion of the driving base are meshed to drive the two transmission shafts to rotate, the two transmission shafts are used for driving the two left claws and the two right claws to rotate, and therefore wood is grabbed through the two left claws and the two right claws. And meanwhile, only one hydraulic oil cylinder is used for driving the two left claws and the two right claws, the structure is simple, the cost is low, grabbed wood can be effectively supported through cooperation of the other two left claws and the two right claws, the wood is prevented from inclining, the wood grabbing stability is guaranteed, and the practicability of the single-oil-cylinder mechanical hydraulic type log grabber is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic wood-grabbing machinery, and more specifically, to a single-cylinder mechanical hydraulic wood grabber. Background Art

[0002] With the rapid development of the economy, sawmills and related factories mainly rely on wood grabbers to handle wood. Wood grabbers are important mechanical equipment in wood loaders, and the performance of wood grabbers directly affects the working efficiency of wood grabbing. The existing wood grabbers are mainly of two types: mechanical structure and hydraulic type. The mechanical type drives the closing or opening of the wood grabber through mechanical transmission between components, and the hydraulic type controls the movement of the wood grabber through a hydraulic pump, reducing component transmission. However, the current hydraulic wood grabbers mostly use double cylinders, with complex structures and high costs. In addition, they can only drive two grab clips to grab wood, resulting in poor stability of the grabbed wood. For this reason, we propose a single-cylinder mechanical hydraulic wood grabber. Content of the Utility Model

[0003] Aiming at the problems mentioned in the above background art, the purpose of the utility model is to provide a single-cylinder mechanical hydraulic wood grabber.

[0004] To solve the above problems, the utility model adopts the following technical solutions:

[0005] A single-cylinder mechanical hydraulic wood grabber includes a connecting seat. A slewing mechanism is arranged on the top of the connecting seat. The bottom surface of the connecting seat is fixedly connected with a driving box. Two transmission shafts are rotatably connected in the inner cavity of the driving box. The two ends of one transmission shaft respectively extend to both sides of the driving box and are fixedly sleeved with left claws, and the two ends of the other transmission shaft respectively extend to both sides of the driving box and are fixedly sleeved with right claws. The positions of the two left claws and the two right claws are adapted to each other. Straight gears are fixedly sleeved on the outer sides of the two transmission shafts and in the inner cavity of the driving box. A hydraulic cylinder is fixedly installed on the top of the inner cavity of the driving box. The output end of the hydraulic cylinder is fixedly connected with a driving seat. Straight racks are respectively arranged on both sides of the driving seat, and the two straight racks are respectively meshed with the two straight gears.

[0006] As a preferred scheme of the utility model, the slewing mechanism includes a slewing disc fixedly connected to the top surface of the connecting seat. A slewing base is rotatably connected to the outside of the slewing disc. A brake motor is fixedly installed on the top surface of the slewing base, and the output shaft of the brake motor is connected to the top surface of the slewing disc.

[0007] As a preferred embodiment of the present utility model, connecting blocks are fixedly connected to the two left claws and the two right claws respectively. Connecting holes are respectively formed in the connecting blocks. A reinforcing column is sleeved on two adjacent connecting holes. External thread grooves are respectively arranged at both ends of the reinforcing column, and fastening nuts are threadedly sleeved on the outer sides of the external thread grooves.

[0008] As a preferred embodiment of the present utility model, two mounting seats are fixedly connected to the top surface of the rotary base, and mounting holes are respectively formed in the two mounting seats.

[0009] As a preferred embodiment of the present utility model, the other two sides of the driving seat are respectively in contact with the inner wall of the driving box.

[0010] As a preferred embodiment of the present utility model, the inner diameter of the connecting hole is equal to the outer diameter of the reinforcing column.

[0011] The advantages of the present utility model are as follows:

[0012] In the present utility model, a hydraulic cylinder is used to drive the driving seat to move up and down. The meshing between the straight rack on the side of the driving seat and the straight gear drives the two transmission shafts to rotate. The two transmission shafts drive the two left claws and the two right claws to rotate, so as to realize the grasping of wood by the two left claws and the two right claws. At the same time, only one hydraulic cylinder is used to drive the two left claws and the two right claws. The structure is simple and the cost is low. In addition, the cooperation of the two left claws and the two right claws can effectively support the grasped wood, prevent the wood from tilting, ensure the stability of the grasped wood, and improve the practicability of the single-cylinder mechanical hydraulic wood grab. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 is an exploded view of the overall structure of the present utility model;

[0015] Figure 3 is a schematic cross-sectional view of the driving box of the present utility model;

[0016] Figure 4 is a schematic diagram of the structure of the reinforcing column of the present utility model.

[0017] Explanation of the reference numerals in the drawings:

[0018] 1. Connecting seat; 2. Driving box; 3. Rotary mechanism; 4. Transmission shaft; 5. Left claw; 6. Right claw; 7. Straight gear; 8. Hydraulic cylinder; 9. Driving seat; 10. Rotary disk; 11. Rotary base; 12. Brake motor; 13. Mounting seat; 14. Mounting hole; 15. Connecting block; 16. Connecting hole; 17. Reinforcing column; 18. External thread groove; 19. Fastening nut; 20. Straight rack. Detailed implementation manner

[0019] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0020] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "outer", "top / bottom end", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "provided with", "sleeved / connected", "connection", etc. should be understood in a broad sense. 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 directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0022] Embodiment:

[0023] Please refer to Figures 1 - 4, A single-cylinder mechanical hydraulic wood grabber, including a connecting seat 1. A slewing mechanism 3 is arranged at the top of the connecting seat 1. The bottom surface of the connecting seat 1 is fixedly connected with a driving box 2. Two transmission shafts 4 are rotatably connected in the inner cavity of the driving box 2. The two ends of one transmission shaft 4 respectively extend to both sides of the driving box 2 and are fixedly sleeved with a left claw 5. The two ends of the other transmission shaft 4 respectively extend to both sides of the driving box 2 and are fixedly sleeved with a right claw 6. The positions of the two left claws 5 and the two right claws 6 are adapted to each other. Straight gears 7 are fixedly sleeved on the outer sides of the two transmission shafts 4 and located in the inner cavity of the driving box 2. A hydraulic cylinder 8 is fixedly installed at the top of the inner cavity of the driving box 2. The output end of the hydraulic cylinder 8 is fixedly connected with a driving seat 9. Straight racks 20 are respectively arranged on both sides of the driving seat 9. The two straight racks 20 respectively mesh with the two straight gears 7.

[0024] Specifically, please refer to Figures 1 to 3 , The slewing mechanism 3 includes a slewing disc 10 fixedly connected to the top surface of the connecting seat 1. A slewing base 11 is rotatably connected to the outside of the slewing disc 10. A brake motor 12 is fixedly installed on the top surface of the slewing base 11. The output shaft of the brake motor 12 is connected to the top surface of the slewing disc 10.

[0025] In this embodiment, the brake motor 12 is used to drive the slewing disc 10, the connecting seat 1, the left claw 5 and the right claw 6 to rotate, so as to change the angle of grabbing wood.

[0026] Specifically, please refer to Figure 1 , Figure 2 and Figure 4 , Connecting blocks 15 are respectively fixedly connected to the two left claws 5 and the two right claws 6. Connecting holes 16 are respectively opened on the connecting blocks 15. Reinforcing columns 17 are sleeved on two adjacent connecting holes 16. External thread grooves 18 are respectively arranged at both ends of the reinforcing column 17. Tightening nuts 19 are threadedly sleeved on the outside of the external thread grooves 18.

[0027] In this embodiment, the two left claws 5 or the two right claws 6 are strengthened and connected through the cooperation of the connecting block 15, the connecting hole 16, the reinforcing column 17 and the tightening nut 19.

[0028] Specifically, please refer to Figure 3 , Two mounting seats 13 are fixedly connected to the top surface of the slewing base 11. Mounting holes 14 are respectively opened on the two mounting seats 13.

[0029] In this embodiment, the wood grabber is connected to the driving machine through the cooperation of the mounting seat 13 and the mounting hole 14.

[0030] Specifically, please refer to Figure 3 , The other two sides of the driving seat 9 are respectively in contact with the inner wall of the driving box 2.

[0031] In this embodiment, the inner wall of the drive box 2 is used to limit the drive seat 9 to ensure the stability of the drive seat 9 in the inner cavity of the drive box 2.

[0032] Specifically, please refer to Figure 2 , the inner diameter of the connecting hole 16 is equal to the outer diameter of the reinforcing column 17.

[0033] In this embodiment, the stability of the reinforcing column 17 sleeved in the connecting hole 16 is ensured, and further the stability of the connection between the reinforcing column 17 and the connecting block 15 is ensured.

[0034] Working principle: During use, first connect the grapple to the driving machine through the mounting seat 13 and the mounting hole 14, and use the driving machine to move the grapple above the wood to be grabbed. Then start the brake motor 12 to drive the rotary disk 10, the connecting seat 1, the left claws 5 and the right claws 6 to rotate, so that the two left claws 5 and the two right claws 6 are respectively aligned with the length direction of the wood. Then start the hydraulic cylinder 8 to drive the drive seat 9 to move downwards. The two straight racks 20 on the side of the drive seat 9 are respectively engaged with the two spur gears 7 for transmission. Thus, the spur gear 7 drives the transmission shaft 4 to rotate, and the two transmission shafts 4 drive the two left claws 5 and the two right claws 6 to expand outwards. At this time, the left claws 5 and the right claws 6 are used to grab the wood, so that the wood is placed inside the left claws 5 and the right claws 6. Finally, start the hydraulic cylinder 8 to drive the drive seat 9 to move upwards, and use the meshing transmission between the straight rack 20 and the spur gear 7 to drive the left claws 5 and the right claws 6 to close, so as to grab the wood. At the same time, the number of both the left claws 5 and the right claws 6 is two, which effectively supports the grabbed wood and prevents the grabbed wood from tilting, and that's it.

[0035] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A single-cylinder mechanical hydraulic log grapple, comprising a connecting seat (1), characterized in that: A rotary mechanism (3) is provided at the top of the connecting seat (1). A driving box (2) is fixedly connected to the bottom surface of the connecting seat (1). Two transmission shafts (4) are rotatably connected in the inner cavity of the driving box (2). The two ends of one transmission shaft (4) respectively extend to both sides of the driving box (2) and are fixedly sleeved with left claws (5). The two ends of the other transmission shaft (4) respectively extend to both sides of the driving box (2) and are fixedly sleeved with right claws (6). The positions of the two left claws (5) and the two right claws (6) are adapted to each other. Straight gears (7) are fixedly sleeved on the outer sides of the two transmission shafts (4) and located in the inner cavity of the driving box (2). A hydraulic cylinder (8) is fixedly installed at the top of the inner cavity of the driving box (2). The output end of the hydraulic cylinder (8) is fixedly connected to a driving seat (9). Straight racks (20) are respectively arranged on both sides of the driving seat (9). The two straight racks (20) respectively mesh with the two straight gears (7).

2. The single-cylinder mechanical hydraulic grapple according to claim 1, wherein: The rotary mechanism (3) includes a rotary disk (10) fixedly connected to the top surface of the connecting seat (1). A rotary base (11) is rotatably connected to the outside of the rotary disk (10). A brake motor (12) is fixedly installed on the top surface of the rotary base (11). The output shaft of the brake motor (12) is connected to the top surface of the rotary disk (10).

3. A single-cylinder mechanical hydraulic grapple according to claim 1, characterized in that: Connecting blocks (15) are respectively fixedly connected to the two left claws (5) and the two right claws (6). Connecting holes (16) are respectively formed in the connecting blocks (15). Reinforcing columns (17) are sleeved on two adjacent connecting holes (16). External thread grooves (18) are respectively arranged at both ends of the reinforcing column (17). Tightening nuts (19) are threadedly sleeved on the outside of the external thread grooves (18).

4. A single-cylinder mechanical hydraulic log grapple according to claim 2, characterized in that: Two mounting seats (13) are fixedly connected to the top surface of the rotary base (11). Mounting holes (14) are respectively formed in the two mounting seats (13).

5. A single-cylinder mechanical hydraulic log grapple according to claim 1, characterized in that: The other two sides of the driving seat (9) are respectively in contact with the inner walls of the driving box (2).

6. The single-cylinder mechanical hydraulic grapple according to claim 3, characterized in that: The inner diameter of the connecting hole (16) is equal to the outer diameter of the reinforcing column (17).

Images