Crane suspension arm mechanism with protection function

Abstract

The invention belongs to the field of lazy arms, and particularly relates to a crane lazy arm mechanism with a protection function, the crane lazy arm mechanism comprises a lazy arm, a protection mechanism is arranged on one side of the lazy arm, the protection mechanism comprises an L-shaped mounting plate, an L-shaped buffer plate and a side buffer plate, the L-shaped mounting plate is mounted on the lazy arm through a detachable structure, and the L-shaped buffer plate is arranged on the L-shaped mounting plate. The L-shaped buffer plate is arranged on one side of the L-shaped mounting plate, two side buffer plates are rotationally mounted on the L-shaped buffer plate, the suspension arm is located between the two side buffer plates, a moving groove is formed in one side of the L-shaped mounting plate, a moving seat is slidably mounted in the moving groove, a first damper is fixedly mounted on one side of the moving seat, and a second damper is fixedly mounted on the other side of the moving seat. And an output shaft of the damper I is fixedly connected with the L-shaped buffer plate. The protection mechanism is reasonable in design, the protection mechanism can be conveniently installed at one end of the suspension arm, and under the cooperation of the L-shaped buffer plate and the protection plate, the purpose of carrying out buffer protection on the suspension arm can be achieved.

Description

Technical Field

[0001] The invention relates to the technical field of crane arms, and in particular to a crane crane arm mechanism with a protective function. Background Art

[0002] Truck cranes are widely used in transportation, construction, mining and road construction projects to load and unload parts and goods. Wire ropes, as one of the important parts of cranes, play an important role in boom extension and retraction, lifting heavy objects, etc. After searching, the patent document with the authorization announcement number CN209853606U discloses that the crane boom includes a terminal boom and a sub-terminal boom, the front end of the sub-terminal boom is rotatably equipped with a top support pulley, the rear end of the terminal boom is provided with a pulling connection structure, the top support pulley includes two parallel wheel grooves, the boom rope is wound around the top support pulley, and the rear end of the terminal boom is fixed with a split rope piece, and the split rope piece has a top support part. The crane of the utility model provides a split rope piece at the rear end of the terminal boom to support the corresponding wire rope of the boom rope to change the direction of the wire rope, so that the wire rope is aligned with or close to the alignment position with the top support pulley, thereby preventing the boom rope from coming off the traction pulley at the rear end of the terminal boom, that is, the boom rope is out of the groove.

[0003] In actual use, it is found that when the crane boom is working, the boom needs to rotate and move, which makes it easy for the boom to hit an object, thereby easily causing damage to the boom and posing a safety hazard. Therefore, we propose a crane boom mechanism with a protective function to solve the above problem. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a crane boom mechanism with a protective function.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A crane boom mechanism with a protective function comprises a boom, a protective mechanism is arranged on one side of the boom, the protective mechanism comprises an L-shaped mounting plate, an L-shaped buffer plate and a side buffer plate, the L-shaped mounting plate is mounted on the boom through a detachable structure, the L-shaped buffer plate is arranged on one side of the L-shaped mounting plate, two side buffer plates are mounted on the L-shaped buffer plate, and the boom is located between the two side buffer plates, a moving groove is provided on one side of the L-shaped mounting plate, a moving seat is slidably mounted in the moving groove, a damper 1 is fixedly mounted on one side of the moving seat, an output shaft of the damper 1 is fixedly connected to the L-shaped buffer plate, a compression spring 1 is fixedly mounted on one side of the moving seat, and one end of the compression spring 1 is fixedly mounted on the L-shaped buffer plate;

[0007] A second damper is installed on the top of the L-shaped mounting plate, a sliding groove is opened on the top inner wall of the L-shaped buffer plate, a sliding seat is slidably installed in the sliding groove, and the output shaft of the second damper is fixedly installed on the sliding seat, a second compression spring is fixedly installed on the top of the L-shaped mounting plate, and the second compression spring is fixedly installed on the sliding seat, a fixed spring is fixedly installed on the side of the two side buffer plates away from each other, and a same protective plate is fixedly installed on one end of multiple fixed springs located on the same side.

[0008] Preferably, the same limiting rod 1 is fixedly installed on the top and bottom inner walls of the movable groove, the movable seat sliding sleeve is arranged on the limiting rod 1, a buffer spring 1 is fixedly installed on the top and bottom inner walls of the movable groove, and one end of the buffer spring 1 is fixedly installed on the corresponding movable seat.

[0009] Preferably, the same limiting rod 2 is fixedly installed on the inner walls on both sides of the sliding groove, and the sliding seat is slidably sleeved on the limiting rod 2, and buffer springs 2 are fixedly installed on the inner walls on both sides of the sliding groove, and one end of the buffer spring 2 is fixedly installed on the sliding seat.

[0010] Preferably, a mounting hole is provided on one side of the L-shaped mounting plate, a threaded rod is welded on one side of the boom, the threaded rod passes through the mounting hole and a nut is threadedly installed on the threaded rod, and an operating hole is provided on one side of the L-shaped buffer plate, and the operating hole and the threaded rod are located on the same horizontal line.

[0011] Preferably, a holder is fixedly mounted on the top of the boom, a holder hole is opened on the top of the L-shaped mounting plate, and the holder is matched with the corresponding holder hole.

[0012] Preferably, a slot is provided on one side of the card seat, a rectangular groove is provided on the inner wall of one side of the card hole, an insertion rod is slidably installed in the rectangular groove, and the insertion rod is adapted to the corresponding slot.

[0013] Preferably, a threaded hole 1 is provided on an inner wall of one side of the rectangular groove, a driving screw is installed on the inner thread of the threaded hole 1, one end of the driving screw is rotatably installed on the insertion rod, and a knob is fixedly installed on the other end of the driving screw.

[0014] Preferably, a rotation groove is provided on one side of the insertion rod, an annular groove is provided on the inner wall of the rotation groove, an annular seat is fixedly mounted on the driving screw, and the annular seat is rotatably connected to the annular groove.

[0015] Preferably, two guide seats are fixedly installed on the inner wall of one side of the L-shaped buffer plate, the top of the guide seat is rotated to install a rotating shaft, the top of the rotating shaft extends to the top of the L-shaped buffer plate and is fixedly installed with a rotating plate, and the side buffer plate is fixedly installed on the rotating shaft.

[0016] Preferably, a fixing groove is provided on the top of the L-shaped buffer plate, a second threaded hole is provided on the top of the rotating plate, a fixing screw matched with the fixing groove is installed in the inner thread of the second threaded hole, and a handle is fixedly installed on the top of the fixing screw.

[0017] Beneficial effects of the present invention:

[0018] 1. When installing the protective mechanism, place the L-shaped mounting plate on the top of the boom so that the holder is inserted into the corresponding socket, and the threaded rod and the mounting hole are on the same horizontal line. Move the L-shaped mounting plate toward the boom so that the threaded rod can be inserted into the mounting hole, and install the nut on the threaded rod. The nut can fix the L-shaped mounting plate in the vertical direction.

[0019] 2. Through the action of the knob, the driving screw and the threaded hole, the driving screw can drive the insertion rod to move and insert into the corresponding slot, so that the L-shaped mounting plate can be fixed in the horizontal direction, and the purpose of disassembling and assembling the protective mechanism can be achieved;

[0020] 3. Through the action of the handle, the fixing screw and the threaded hole, the fixing screw can be inserted into or out of the fixing groove, so as to fix and release the rotating plate. By rotating the rotating plate, the rotating plate can drive the side buffer plate to rotate through the rotating shaft, thereby achieving the purpose of adjusting the angle of the side buffer plate;

[0021] 4. When the boom is working and the head of the boom hits an object, the protective plate can compress the fixed spring, so as to achieve the purpose of buffering and protecting the front and rear sides of the boom. When the L-shaped buffer plate moves in the horizontal direction due to the collision, the L-shaped buffer plate can move the damper 1 and the compression spring 1. The movement of the L-shaped buffer plate can squeeze the buffer spring 2, so that the buffer spring 2 is deformed, so as to achieve the purpose of buffering and protecting the boom in the horizontal direction.

[0022] 5. When the boom is hit and the L-shaped buffer plate moves in the vertical direction, the L-shaped buffer plate can compress damper 2 and compression spring 2 through the sliding seat, and the L-shaped buffer plate drives the moving seat to move through damper 1, and the moving seat can squeeze and deform buffer spring 1, thereby achieving the purpose of buffering protection of the boom in the vertical direction. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the main structure of a crane boom mechanism with a protective function proposed by the present invention;

[0024] Figure 2 A schematic diagram of the three-dimensional structure of a protective mechanism of a crane boom mechanism with a protective function proposed by the present invention;

[0025] Figure 3 This is a bottom-up stereoscopic structural schematic diagram of a protection mechanism of a crane boom mechanism with a protection function proposed by the present invention;

[0026] Figure 4 This is a schematic structural diagram of part A of a crane boom mechanism with a protective function proposed by the present invention;

[0027] Figure 5 This is a schematic structural diagram of part B of a crane boom mechanism with a protective function proposed by the present invention;

[0028] Figure 6 This is a schematic structural diagram of the C portion of a crane boom mechanism with a protective function proposed by the present invention;

[0029] Figure 7 A schematic side view of the structure of an L-shaped buffer plate of a crane boom mechanism with a protective function proposed by the present invention;

[0030] Figure 8 This is a structural schematic diagram of part D of a crane boom mechanism with a protective function proposed by the present invention.

[0031] In the figure: 1. boom; 2. protective mechanism; 3. L-shaped mounting plate; 4. L-shaped buffer plate; 5. side buffer plate; 6. mounting hole; 7. threaded rod; 8. nut; 9. operating hole; 10. moving slot; 11. moving seat; 12. limit rod 1; 13. buffer spring 1; 14. damper 1; 15. compression spring 1; 16. clamping hole; 17. clamping seat; 18. slot; 19. rectangular slot; 20. plug rod; 21. threaded hole 1; 22. drive screw; 23. knob; 24. damper 2; 25. compression spring 2; 26. sliding slot; 27. sliding seat; 28. limit rod 2; 29. ​​buffer spring 2; 30. guide seat; 31. rotating shaft; 32. fixed spring; 33. protective plate; 34. rotating plate; 35. fixed slot; 36. threaded hole 2; 37. fixed screw; 38. handle. DETAILED DESCRIPTION

[0032] The technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] When a component is referred to as being "disposed on" another component, it can be directly on the other component or there can also be an intermediate component. "Disposed" indicates a way of existence, which can be a connection method such as connection, installation, fixed connection, active connection, etc. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there can be an intermediate component at the same time.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0035] Reference Figure 1-8 A crane boom mechanism with a protective function comprises a boom 1, a protective mechanism 2 is arranged on one side of the boom 1, the protective mechanism 2 comprises an L-shaped mounting plate 3, an L-shaped buffer plate 4 and a side buffer plate 5, the L-shaped mounting plate 3 is mounted on the boom 1 through a detachable structure, the L-shaped buffer plate 4 is arranged on one side of the L-shaped mounting plate 3, two side buffer plates 5 are installed on the L-shaped buffer plate 4, and the boom 1 is located between the two side buffer plates 5, a moving groove 10 is opened on one side of the L-shaped mounting plate 3, a moving seat 11 is slidably installed in the moving groove 10, a damper 14 is fixedly installed on one side of the moving seat 11, the output shaft of the damper 14 is fixedly connected to the L-shaped buffer plate 4, and a compression spring 1 is fixedly installed on one side of the moving seat 11 15, and one end of the compression spring one is fixedly mounted on the L-shaped buffer plate 4, a damper two 24 is mounted on the top of the L-shaped mounting plate 3, a sliding groove 26 is opened on the top inner wall of the L-shaped buffer plate 4, a sliding seat 27 is slidably mounted in the sliding groove 26, and the output shaft of the damper two 24 is fixedly mounted on the sliding seat 27, a compression spring two 25 is fixedly mounted on the top of the L-shaped mounting plate 3, and the compression spring two 25 is fixedly mounted on the sliding seat 27, the two side buffer plates 5 are fixedly mounted with fixed springs 32 on the sides away from each other, and one end of the multiple fixed springs 32 located on the same side is fixedly mounted with the same protective plate 33, and by providing the protective plate 33, the purpose of protecting the front and rear sides of the boom 1 can be achieved.

[0036] In this embodiment, the same limiting rod 12 is fixedly installed on the top and bottom inner walls of the movable groove 10, and the movable seat 11 is slidably mounted on the limiting rod 12. Buffer springs 13 are fixedly installed on the top and bottom inner walls of the movable groove 10, and one end of the buffer spring 13 is fixedly installed on the corresponding movable seat 11. By providing the buffer spring 13, the L-shaped buffer plate 4 can be buffered in the vertical direction. The same limiting rod 28 is fixedly installed on the inner walls on both sides of the sliding groove 26, and the sliding seat 27 is slidably mounted on the limiting rod 28. Buffer springs 29 are fixedly installed on the inner walls on both sides of the sliding groove 26, and one end of the buffer spring 29 is fixedly installed on the sliding seat 27. By providing the buffer spring 29, the purpose of buffering and protecting the L-shaped buffer plate 4 in the horizontal direction can be achieved.

[0037] In this embodiment, a mounting hole 6 is provided on one side of the L-shaped mounting plate 3, and a threaded rod 7 is welded on one side of the boom 1. The threaded rod 7 passes through the mounting hole 6 and is threadedly installed with a nut 8. By providing the nut 8, the L-shaped mounting plate 3 can be initially pressed and fixed. An operating hole 9 is provided on one side of the L-shaped buffer plate 4. The operating hole 9 and the threaded rod 7 are located on the same horizontal line. A clamping seat 17 is fixedly installed on the top of the boom 1. A clamping hole 16 is provided on the top of the L-shaped mounting plate 3, and the clamping seat 17 is adapted to the corresponding clamping hole 16. Through the cooperation of the clamping seat 17 and the clamping hole 16, the L-shaped mounting plate 3 can be positioned.

[0038] In this embodiment, a slot 18 is provided on one side of the card seat 17, and a rectangular slot 19 is provided on the inner wall of one side of the card hole 16. A plug rod 20 is slidably installed in the rectangular slot 19, and the plug rod 20 is adapted to the corresponding slot 18. By providing the plug rod 20 and the slot 18, the stability of the L-shaped mounting plate 3 can be increased. A threaded hole 21 is provided on the inner wall of one side of the rectangular slot 19, and a driving screw 22 is threadedly installed in the threaded hole 21. One end of the driving screw 22 is rotatably installed on the plug rod 20, and the other end of the driving screw 22 is fixedly installed with a knob 23. By providing the driving screw 22, the driving screw 22 can drive the plug rod 20 to move. A rotating groove is provided on one side of the plug rod 20, and an annular groove is provided on the inner wall of the rotating groove. An annular seat is fixedly installed on the driving screw 22, and the annular seat is rotatably connected to the annular groove. By providing the annular groove and the annular seat, the driving screw 22 can be rotatably installed on the plug rod 20.

[0039] In this embodiment, two guide seats 30 are fixedly installed on the inner wall of one side of the L-shaped buffer plate 4, and the top of the guide seat 30 is rotated to install a rotating shaft 31, the top of the rotating shaft 31 extends to the top of the L-shaped buffer plate 4 and is fixedly installed with a rotating plate 34, and the side buffer plate 5 is fixedly installed on the rotating shaft 31. By providing the rotating plate 34, the rotating plate 34 can drive the side buffer plate 5 to rotate and adjust the angle through the rotating shaft 31. A fixing groove 35 is provided on the top of the L-shaped buffer plate 4, and a threaded hole 36 is provided on the top of the rotating plate 34. A fixing screw 37 compatible with the fixing groove 35 is installed in the inner thread of the threaded hole 36, and a handle 38 is fixedly installed on the top of the fixing screw 37. By cooperating with the fixing screw 37 and the fixing groove 35, the purpose of fixing and releasing the fixing of the rotating plate 34 can be achieved.

[0040] In the present invention, when the protective mechanism 2 is installed, the L-shaped mounting plate 3 is placed on the top of the boom 1, so that the holder 17 is inserted into the corresponding insertion hole, and at this time the threaded rod 7 and the mounting hole 6 are located on the same horizontal line, and the L-shaped mounting plate 3 is moved toward the direction of the boom 1, so that the threaded rod 7 can be inserted into the mounting hole 6, and the nut 8 is threadedly installed on the threaded rod 7, and the nut 8 can fix the L-shaped mounting plate 3 in the vertical direction, and by rotating the knob 23 and the driving screw 22, under the action of the threaded hole 21, the driving screw 22 can drive the insertion rod 20 to move, and the insertion rod 20 can be inserted into the corresponding slot 18, so that the L-shaped mounting plate 3 can be fixed in the horizontal direction, and the purpose of disassembling and assembling the protective mechanism 2 can be achieved;

[0041] By rotating the handle 38 and the fixing screw 37, the fixing screw 37 is rotated and moved under the action of the second threaded hole 36, and the fixing screw 37 can be inserted into or out of the fixing groove 35, so as to fix and release the rotating plate 34. By rotating the rotating plate 34, the rotating plate 34 can drive the side buffer plate 5 to rotate through the rotating shaft 31, thereby achieving the purpose of adjusting the angle of the side buffer plate 5.

[0042] When the boom 1 is working and the head of the boom 1 hits an object, the protective plate 33 can compress the fixed spring 32, thereby achieving the purpose of buffering and protecting the front and rear sides of the boom 1. When the L-shaped buffer plate 4 is collided and moves in the horizontal direction, the L-shaped buffer plate 4 can move the damper 14 and the compression spring 15. The movement of the L-shaped buffer plate 4 can squeeze the buffer spring 29, so that the buffer spring 29 is deformed, thereby achieving the purpose of buffering and protecting the boom 1 in the horizontal direction. When the boom 1 is collided and the L-shaped buffer plate 4 moves in the vertical direction, the L-shaped buffer plate 4 can compress the damper 24 and the compression spring 25 through the sliding seat 27. The L-shaped buffer plate 4 drives the moving seat 11 to move through the damper 14. The moving seat 11 can squeeze and deform the buffer spring 13, thereby achieving the purpose of buffering and protecting the boom 1 in the vertical direction.

[0043] The above is a detailed introduction to a crane boom mechanism with a protective function provided by the present invention. Specific embodiments are used in this article to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A crane boom mechanism with a protective function, characterized in that: The invention comprises a boom (1), wherein a protective mechanism (2) is arranged on one side of the boom (1), wherein the protective mechanism (2) comprises an L-shaped mounting plate (3), an L-shaped buffer plate (4) and a side buffer plate (5), wherein the L-shaped mounting plate (3) is mounted on the boom (1) via a detachable structure, wherein the L-shaped buffer plate (4) is arranged on one side of the L-shaped mounting plate (3), wherein two side buffer plates (5) are mounted on the L-shaped buffer plate (4), and wherein the boom (1) is located between the two side buffer plates (5); A movable groove (10) is provided on one side of the L-shaped mounting plate (3), a movable seat (11) is slidably mounted in the movable groove (10), a damper (14) is fixedly mounted on one side of the movable seat (11), an output shaft of the damper (14) is fixedly connected to the L-shaped buffer plate (4), a compression spring (15) is fixedly mounted on one side of the movable seat (11), and one end of the compression spring (15) is fixedly mounted on the L-shaped buffer plate (4); A second damper (24) is installed on the top of the L-shaped mounting plate (3); a sliding groove (26) is provided on the inner wall of the top of the L-shaped buffer plate (4); a sliding seat (27) is slidably installed in the sliding groove (26); and an output shaft of the second damper (24) is fixedly installed on the sliding seat (27); a second compression spring (25) is fixedly installed on the top of the L-shaped mounting plate (3); and the second compression spring (25) is fixedly installed on the sliding seat (27); A fixed spring (32) is fixedly mounted on one side of the two side buffer plates (5) that are away from each other, and a same protective plate (33) is fixedly mounted on one end of a plurality of fixed springs (32) located on the same side.

2. The crane boom mechanism with protective function according to claim 1, characterized in that: The same limiting rod 1 (12) is fixedly mounted on the top and bottom inner walls of the movable groove (10), the movable seat (11) is slidably sleeved on the limiting rod 1 (12), and a buffer spring 1 (13) is fixedly mounted on the top and bottom inner walls of the movable groove (10), and one end of the buffer spring 1 (13) is fixedly mounted on the corresponding movable seat (11).

3. The crane boom mechanism with protective function according to claim 1, characterized in that: The same limiting rod (28) is fixedly mounted on the inner walls on both sides of the sliding groove (26), and the sliding seat (27) is slidably sleeved on the limiting rod (28). The inner walls on both sides of the sliding groove (26) are fixedly mounted with a buffer spring (29), and one end of the buffer spring (29) is fixedly mounted on the sliding seat (27).

4. The crane boom mechanism with protective function according to claim 1, characterized in that: A mounting hole (6) is formed on one side of the L-shaped mounting plate (3); a threaded rod (7) is welded on one side of the boom (1); the threaded rod (7) passes through the mounting hole (6) and is threadedly mounted with a nut (8); an operating hole (9) is formed on one side of the L-shaped buffer plate (4); the operating hole (9) and the threaded rod (7) are located on the same horizontal line.

5. The crane boom mechanism with protective function according to claim 1, characterized in that: A clamping seat (17) is fixedly mounted on the top of the boom (1), a clamping hole (16) is provided on the top of the L-shaped mounting plate (3), and the clamping seat (17) is matched with the corresponding clamping hole (16).

6. The crane boom mechanism with protective function according to claim 5, characterized in that: A slot (18) is provided on one side of the card seat (17), a rectangular slot (19) is provided on the inner wall of one side of the card hole (16), an insertion rod (20) is slidably installed in the rectangular slot (19), and the insertion rod (20) is adapted to fit the corresponding slot (18).

7. The crane boom mechanism with protective function according to claim 6, characterized in that: A threaded hole (21) is provided on an inner wall of one side of the rectangular groove, a driving screw (22) is installed with an internal thread of the threaded hole (21), one end of the driving screw (22) is rotatably mounted on the insertion rod (20), and a knob (23) is fixedly mounted on the other end of the driving screw (22).

8. The crane boom mechanism with protective function according to claim 7, characterized in that: A rotation groove is provided on one side of the insertion rod (20), an annular groove is provided on the inner wall of the rotation groove, an annular seat is fixedly mounted on the driving screw rod (22), and the annular seat is rotationally connected to the annular groove.

9. The crane boom mechanism with protective function according to claim 1, characterized in that: Two guide seats (30) are fixedly mounted on an inner wall of one side of the L-shaped buffer plate (4); a rotating shaft (31) is mounted on the top of the guide seat (30); the top end of the rotating shaft (31) extends to the top of the L-shaped buffer plate (4) and is fixedly mounted with a rotating plate (34); and the side buffer plate (5) is fixedly mounted on the rotating shaft (31).

10. The crane boom mechanism with protective function according to claim 9, characterized in that: The top of the L-shaped buffer plate (4) is provided with a fixing groove (35), the top of the rotating plate (34) is provided with a second threaded hole (36), a fixing screw (37) adapted to the fixing groove (35) is installed in the internal thread of the second threaded hole (36), and a handle (38) is fixedly installed at the top of the fixing screw (37).

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