Crane boom and crane
By designing a rotatable and retractable crane boom, combined with the use of lubricating oil, the crane boom in the prior art is solved, and the crane boom is inconvenient to operate and large losses in complex environments, achieving more flexible and efficient use.
Patent Information
- Application Number
- CN202510094350.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-04-11
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In complex environments such as offshore wind power installation, existing crane booms are difficult to operate flexibly and are susceptible to wind force, resulting in inconvenient rotation and machine loss.
A crane boom is designed, by dividing the boom into a lifting boom and a lifting forearm, and a first pusher and a second pusher are provided to control their rotation and retraction, reducing the influence of torque and wind force. At the same time, oil barrel, oil pipe and switch components are installed to ensure that lubricating oil drips in the rotating connection of the boom and reduce rotational losses.
It realizes flexible operation of the crane boom in complex environments, reduces the influence of torque and wind, reduces machine losses, and improves the convenience of the boom.
Smart Images
Figure CN119797197A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of cranes, and in particular to a crane boom and a crane. Background Art
[0002] The crane boom must not only work in conventional industrial environments, but also adapt to complex outdoor and special working conditions. For example, in the field of offshore wind power installation, the crane boom must withstand multiple adverse factors such as the swaying of ships caused by sea breeze and waves, and seawater corrosion. At the construction site, the boom may need to be flexibly operated in a narrow space while avoiding collisions with surrounding buildings, scaffolding and other obstacles. This requires the boom design to take into account multi-degree-of-freedom motion control, anti-collision systems, and wind and earthquake resistance.
[0003] In the prior art, a common crane boom is perpendicular to the crane body, the length of the boom is fixed, and then slides back and forth on the boom through a pulley, and a hook is provided on the pulley to drive the object to move far or near.
[0004] However, when the wind is strong at the dock or at sea, if you are only lifting things nearby, the long arm still needs to rotate at its original length and is still affected by the wind during the rotation. Due to the large torque, such a long arm is not only inconvenient to rotate, but also damages the machine during the rotation. Summary of the invention
[0005] The object of the present invention is to provide a crane boom to solve the problems raised in the above background technology.
[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a crane boom, comprising: a bottom plate, a base is fixedly installed on the upper surface of the bottom plate, a support rod is fixedly connected to the upper surface of the base, a connecting block is fixedly connected to the upper surface of the support rod, a driving assembly is arranged on one side of the connecting block, a first groove is provided on the upper surface of the connecting block, a lifting boom is arranged in the first groove, the lifting boom is divided into a left boom and a right boom, one end of the right boom extends into the first groove and is rotatably connected thereto through a rotating shaft, the left boom is arranged on one side of the right boom, a lifting jib is arranged at one end of the left boom, a second groove is provided on the top of the lifting jib, a third groove is provided on the bottom of the lifting jib, and a fifth groove is provided on one side of the lifting jib.
[0007] Preferably, a first fixed wheel is rotatably connected to the second groove via a rotating shaft, a second rotating shaft is installed below the first fixed wheel, one end of the left upper arm extends into the second groove and is rotatably connected to the second rotating shaft, and a fifth fixed wheel is rotatably connected to the bottom of the second groove via a rotating shaft.
[0008] Preferably, a third mounting plate is fixedly installed on one side of the fifth groove and the third groove, a fourth fixed wheel is rotatably connected in the second groove via the third mounting plate, a second fixed wheel is rotatably connected in the third groove via the third mounting plate, and a third fixed wheel is rotatably connected below the second fixed wheel via a rotating shaft.
[0009] Preferably, the bottom of the second groove is provided with an inclined surface.
[0010] Preferably, a plurality of first fixing plates are fixedly connected on both sides of the connection between the left upper arm and the right upper arm, and two opposite first fixing plates are fixedly connected by screws. A fourth groove is provided at one end of the left upper arm, and a connecting plate is fixedly connected to one end of the right upper arm, and the connecting plate extends into the fourth groove and is rotatably connected thereto through a rotating shaft.
[0011] Preferably, a second inclined surface is provided on one side of the left upper arm, a transverse groove and a longitudinal groove are opened at one end of the top of the left upper arm, the transverse groove and the longitudinal groove are connected, a first inclined surface is provided on one side of the right upper arm, a second pusher is provided below the second inclined surface, and a first pusher is provided below the first inclined surface.
[0012] Preferably, an oil drum is fixedly installed on the top of the left upper arm, one end of the oil drum is fixedly connected to an oil suction pump through an oil pipe, and the other end of the oil drum is connected to a switch assembly through an oil pipe.
[0013] Preferably, the switch assembly includes a switch box, a first motor, an oil inlet pipe and an oil outlet pipe, the oil inlet pipe is connected to the oil barrel through an oil pipe, one side of the switch box is connected to the oil inlet pipe, and the other side of the switch box is connected to the oil outlet pipe, and the first motor is fixedly connected to the top of the switch box.
[0014] Preferably, the driving assembly includes a first mounting plate, a driving box, a second mounting plate, a driving block, a driving wheel and a line collecting wheel, the first mounting plate is fixedly connected to one side of the connecting block, the driving box is fixedly connected to the upper surface of the connecting block, the two second mounting plates are fixedly connected to the upper surface of the first mounting plate, the line collecting wheel is rotatably connected between the two second mounting plates via a rotating shaft, the driving block is fixedly connected to the upper surface of the second fixed plate, one side of the driving block is rotatably connected to the driving wheel via a rotating shaft, the side wall of the line collecting wheel and the driving wheel are meshed with each other through teeth, and a support plate is fixedly connected between the first mounting plate and the support rod.
[0015] A crane comprises the above-mentioned crane boom.
[0016] Compared with the prior art, the present invention has the following beneficial effects:
[0017] 1. The crane boom is divided into a lifting boom and a lifting jib and related mechanical structures, so that the lifting boom and the lifting jib can rotate, and the first pusher and the second pusher are provided to control them, so that the lifting jib can be effectively folded after use, and the lifting jib does not need to be fully unfolded when nearby objects need to be lifted. This can reduce the moment of the object when lifting the object, and at the same time reduce the influence of wind and gravity, making the device more compact and convenient to use.
[0018] 2. By setting up the oil barrel, oil pipe, switch assembly, oil pump and related structures, the lubricating oil can effectively enter the transverse groove through the oil outlet pipe, enter the longitudinal groove through the transverse groove, and finally drip onto the rotating connection between the lifting boom and the lifting arm through the longitudinal groove, making the rotation process smoother and reducing the loss of energy and material during the rotation process. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;
[0020] Figure 2 It is a schematic diagram of the three-dimensional structure of the crane of the present invention;
[0021] Figure 3 This is a schematic structural diagram of the lifting boom, oil drum, switch assembly and oil suction pump of the present invention;
[0022] Figure 4 It is a schematic diagram of the three-dimensional structure of the switch assembly of the present invention;
[0023] Figure 5 It is a schematic diagram of the disassembled structure of the drive assembly of the present invention;
[0024] Figure 6 It is a schematic diagram of the three-dimensional structure of the lifting arm of the present invention;
[0025] Figure 7 It is a schematic diagram of the connection structure between the fifth fixed wheel and the second groove of the present invention.
[0026] In the figure: 1, bottom plate; 2, base; 3, support rod; 4, support plate; 5, first mounting plate; 6, drive assembly; 7, lifting arm; 8, connecting block; 9, lifting arm; 10, first groove; 11, first pusher; 12, first inclined surface; 13, second pusher; 14, second inclined surface; 15, second groove; 16, third groove; 17, oil drum; 18, oil suction pump; 19, switch assembly; 20, transverse groove; 21, longitudinal groove; 22, connecting plate; 23, fourth groove; 24, first Fixed plate; 25, switch box; 26, first motor; 27, oil inlet pipeline; 28, oil outlet pipeline; 29, drive box; 30, drive block; 31, driving wheel; 32, line collection wheel; 34, second mounting plate; 35, second fixed plate; 36, first fixed wheel; 37, second rotating shaft; 38, inclined plane; 39, third mounting plate; 40, second fixed wheel; 41, third fixed wheel; 43, fifth fixed wheel; 44, fourth fixed wheel; 45, fifth groove; 701, left upper arm; 702, right upper arm. DETAILED DESCRIPTION
[0027] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, not all of them, and are only used to explain the embodiments of the present invention, and are not used to limit 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.
[0028] Embodiment 1
[0029] See also Figure 1-Figure 2The present invention provides a technical solution: a crane boom, comprising: a bottom plate 1, a base 2 is fixedly installed on the upper surface of the bottom plate 1, the base 2 extends into the ground to ensure the stability of the machine, a support rod 3 is fixedly connected to the upper surface of the base 2, the support rod 3 plays a supporting role, a complex integrated circuit and a control system are arranged inside the support rod 3, a connecting block 8 is fixedly connected to the upper surface of the support rod 3, the connecting block 8 plays a central connecting role, a driving component 6 is arranged on one side of the connecting block 8, the driving component 6 plays a certain driving role, a steel wire is pulled on one side of the driving component 6, and the steel wire is fixed to the ground, a first groove 10 is opened on the upper surface of the connecting block 8, the first groove 10 runs through the top and both sides of the connecting block 8, a lifting boom 7 is arranged in the first groove 10, the lifting boom 7 is horizontally arranged under normal conditions, the lifting boom 7 is similar to an inverted trapezoidal block as a whole, the lifting boom 7 will slightly rotate up and down under the action of the first pusher 11, and the lifting boom 7 is divided into a left boom 701 and a right boom 702. The side boom 702 and the lifting boom 7 are provided with a connecting gap in the middle, one end of the right boom 702 extends into the first groove 10 and is rotatably connected thereto through a rotating shaft, and the right boom 702 will rotate in the first groove 10 under the action of the first pusher 11, and the left boom 701 is arranged on one side of the right boom 702, and the left boom 701 and the right boom 702 are rotatably connected, and can be folded when other components have not been installed during transportation, and a lifting jib 9 is arranged at one end of the left boom 701, and the lifting jib 9 can be folded under the lifting boom 7, and a second groove 15 is provided on the top of the lifting jib 9, and the second groove 15 is for installing the first fixed wheel 36 to ensure that the hook and the steel wire can pass through, and a third groove 16 is provided at the bottom of the lifting jib 9, and the third groove 16 is used to ensure two-sidedness, so a second fixed wheel 40 and a third fixed wheel 41 are provided, and a fifth groove 45 is provided on one side of the lifting jib 9 to ensure that the steel wire can pass through the fifth groove 45 smoothly.
[0030] A first fixed wheel 36 is rotatably connected to the second groove 15 through a rotating shaft. The first fixed wheel 36 is to ensure that the steel wire can be bent here without sliding friction with other parts. A second rotating shaft 37 is installed below the first fixed wheel 36. The second rotating shaft ensures that the lifting boom 7 and the lifting arm 9 can rotate smoothly. One end of the left arm 701 extends into the second groove 15 and is rotatably connected to it through the second rotating shaft. If you want to rotate the second rotating shaft, you only need to move the second pusher 13. The bottom of the second groove 15 is rotatably connected to the fifth fixed wheel 43 through a rotating shaft. The fifth roller is to help the steel wire to smoothly pass through the bending part of the lifting arm 9 and reach the bottom end of the lifting arm 9. A third mounting plate 39 is fixedly installed on one side of the fifth groove 45 and the third groove 16. The third mounting plate 39 is to ensure the protrusion of the fixed wheel so that the steel wire can lift the object without contacting the lifting arm 9. Lifting, the second fixed wheel 40 and the third fixed wheel 41 are arranged so that the third fixed wheel 41 is used when the lifting arm 9 is extended, and the second fixed wheel 40 is used when the lifting arm 9 is not unfolded. The second groove 15 is rotatably connected with the fourth fixed wheel 44 through the third mounting plate 39. In order to ensure that the steel wire at the bending part does not contact the lifting arm 9, the fourth fixed wheel 44 is rotatably connected with the second fixed wheel 40 through the third mounting plate 39 in the third groove 16. The lower part of the second fixed wheel 40 is rotatably connected with the third fixed wheel 41 through the rotating shaft. The second fixed wheel 40 and the third fixed wheel 41 do not contact each other, but the second fixed wheel 40 and the third fixed wheel 41 are almost in contact with each other, and the steel wire passing therebetween cannot escape from the gap in the side wall. The bottom of the second groove 15 is provided with an inclined surface 38. The inclined surface 38 is arranged so that when the lubricating oil in the oil barrel 17 falls, it will further fall on the second pusher 13 through the inclined surface 38.
[0031] In actual use, the steel wire that pulls the hook needs to pass through the driving mechanism, cross the first fixed wheel 36, the fifth fixed wheel 43, the fourth fixed wheel 44, and finally pass between the second fixed wheel 40 and the third fixed wheel 41, and then connect with the hook. The slight rotation of the lifting boom 7 can be controlled by using the first pusher 11, and the rotation of the lifting arm 9 can be controlled by controlling the second pusher 13. Under normal circumstances, the lifting arm 9 is retracted to reduce the torque.
[0032] Embodiment 2
[0033] See also Figure 3On the basis of the first embodiment, a plurality of first fixing plates 24 are fixedly connected on both sides of the connection between the left boom 701 and the right boom 702, and the plurality of first fixing plates 24 correspond to each other one by one. Screw holes are provided on the fixing plates, and the screws are used to further strengthen their function. The two opposite first fixing plates 24 are fixedly connected by screws, so that the left boom 701 and the right boom 702 can be connected. A fourth groove 23 is provided at one end of the left boom 701, and the fourth groove 23 is used to place the fixed wheel. A connecting plate 22 is fixedly connected to one end of the right boom 702, and the connecting plate 22 extends into the fourth groove 23 and is rotatably connected thereto through a rotating shaft. In this way, when the lifting boom 7 has not yet installed other components, it can be folded and transported, making transportation more convenient.
[0034] A second inclined surface 14 is provided on one side of the left boom 701, and the second inclined surface 14 is used to connect with the second pusher 13. A transverse groove 20 and a longitudinal groove 21 are opened at one end of the top of the left boom 701, and the transverse groove 20 and the longitudinal groove 21 are connected. The oil outlet pipeline 28 is arranged at one end of the transverse groove 20. A first inclined surface 12 is provided on one side of the right boom 702, and the first inclined surface 12 is used to connect with the first pusher 11. A second pusher 13 is provided below the second inclined surface 14, and the second pusher 13 is arranged between the second inclined surface 14 and the lifting arm 9. A first pusher 11 is provided below the first inclined surface 12, and the first pusher 11 is arranged between the first inclined surface 12 and the connecting block 8.
[0035] In actual work, since the mechanical boom is large, when the lifting boom 7 has not yet installed other components, it can be folded and transported to make transportation more convenient. During installation, the lifting boom 7 is unfolded and the left boom 701 and the right boom 702 are fixed together through the first fixing plate 24 using screws.
[0036] Embodiment 3
[0037] See also Figure 5-Figure 6On the basis of the second embodiment, an oil barrel 17 is fixedly installed on the top of the left arm 701, and lubricating oil is stored in the oil barrel 17. One end of the oil barrel 17 is fixedly connected to an oil suction pump 18 through an oil pipe. The oil suction pump 18 is connected to a related oil storage tank through an oil pipe to ensure that the oil suction pump 18 can suck lubricating oil from the oil storage tank. The other end of the oil barrel 17 is connected to a switch assembly 19 through an oil pipe. The switch assembly 19 is used to control the release of the oil in the oil barrel 17 to ensure that there is no excessive waste while playing a lubricating role. The switch assembly 19 includes a switch box 25, a first motor 26, an oil inlet pipeline 27 and an oil outlet pipeline 28. The oil inlet pipeline 27 is connected with the oil barrel 17 through the oil pipe, the oil in the oil barrel 17 enters the switch box 25 through the oil inlet pipe, one side of the switch box 25 is connected with the oil inlet pipe 27, and the other end side of the switch box 25 is connected with the oil outlet pipe 28. After the oil is discharged from the oil outlet pipe 28, it will directly flow into the transverse groove 20 and the longitudinal groove 21, and drip to the junction of the lifting boom 7 and the lifting arm 9 through the longitudinal groove 21. The first motor 26 is fixedly connected to the top of the switch box 25, and the output end of the first motor 26 is connected to a hemispherical valve. The pipeline is blocked or opened by rotating the hemisphere provided with a through hole. The rotation of the first motor 26 will drive the hemisphere to rotate.
[0038] The driving assembly 6 includes a first mounting plate 5, a driving box 29, a second mounting plate 34, a driving block 30, a driving wheel 31 and a line collecting wheel 32. The first mounting plate 5 is fixedly connected to one side of the connecting block 8. The first mounting plate 5 is used to install the entire driving assembly 6. The driving box 29 is fixedly connected to the upper surface of the connecting block 8. The main components of the driving assembly 6 are arranged in the driving box 29. The two second mounting plates 34 are fixedly connected to the upper surface of the first mounting plate 5. The second mounting plates 34 are used for supporting. The line collecting wheel 32 is rotatably connected between the two second mounting plates 34 through a rotating shaft. The collecting wheel 32 is used to rotate and release and collect the steel wire. The driving block 30 is fixedly connected to the upper surface of the second fixed plate 35. A plurality of driving elements are arranged in the driving block 30. One side of the driving block 30 is rotatably connected to the driving wheel 31 through a rotating shaft. The driving element in the driving block 30 will drive the driving wheel 31 to rotate. The side wall of the collecting wheel 32 and the driving wheel 31 are meshed with each other through teeth. Therefore, the rotation of the driving wheel 31 will drive the rotation of the collecting wheel 32. A support plate 4 is fixedly connected between the first mounting plate 5 and the support rod 3. The support plate 4 is used to ensure the stability of the first mounting plate 5.
[0039] In actual use, the steel wire that pulls the hook needs to pass through the driving mechanism, cross the first fixed wheel 36, the fifth fixed wheel 43, the fourth fixed wheel 44, and finally pass through the second fixed wheel 40 and the third fixed wheel 41, and then connect with the hook. The slight rotation of the lifting boom 7 can be controlled by using the first pusher 11, and the rotation of the lifting arm 9 can be controlled by controlling the second pusher 13. Under normal circumstances, the lifting arm 9 is retracted to reduce the torque. In actual work, since the mechanical boom is large, when the lifting boom 7 has not yet installed other parts, it can be folded and transported, making transportation more convenient. During installation, unfold the lifting boom 7 and use screws to fix the left boom 701 and the right boom 702 together through the first fixed plate 24.
[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A crane boom, comprising: A base plate (1), characterized in that: a base (2) is fixedly mounted on the upper surface of the base plate (1), a support rod (3) is fixedly connected to the upper surface of the base (2), a connecting block (8) is fixedly connected to the upper surface of the support rod (3), a driving assembly (6) is arranged on one side of the connecting block (8), a first groove (10) is opened on the upper surface of the connecting block (8), a lifting arm (7) is arranged in the first groove (10), and the lifting arm (7) is divided into a left arm (701) and a left arm (702). A right side boom (702), one end of the right side boom (702) extends into the first groove (10) and is rotatably connected thereto via a rotating shaft, the left side boom (701) is arranged on one side of the right side boom (702), one end of the left side boom (701) is provided with a lifting arm (9), a second groove (15) is provided at the top of the lifting arm (9), a third groove (16) is provided at the bottom of the lifting arm (9), and a fifth groove (45) is provided on one side of the lifting arm (9).
2. A crane boom according to claim 1, characterized in that: A first fixed wheel (36) is rotatably connected to the second groove (15) via a rotating shaft, a second rotating shaft (37) is installed below the first fixed wheel (36), one end of the left upper arm (701) extends into the second groove (15) and is rotatably connected to the second rotating shaft, and a fifth fixed wheel (43) is rotatably connected to the bottom of the second groove (15) via a rotating shaft.
3. A crane boom according to claim 2, characterized in that: A third mounting plate (39) is fixedly mounted on one side of the fifth groove (45) and the third groove (16); a fourth fixed wheel (44) is rotatably connected in the second groove (15) via the third mounting plate (39); a second fixed wheel (40) is rotatably connected in the third groove (16) via the third mounting plate (39); and a third fixed wheel (41) is rotatably connected below the second fixed wheel (40) via a rotating shaft.
4. A crane boom according to claim 3, characterized in that: The bottom of the second groove (15) is provided with an inclined surface (38).
5. A crane boom according to claim 4, characterized in that: A plurality of first fixing plates (24) are fixedly connected to both sides of the connection between the left upper arm (701) and the right upper arm (702), and two opposite first fixing plates (24) are fixedly connected by screws. A fourth groove (23) is provided at one end of the left upper arm (701), and a connecting plate (22) is fixedly connected to one end of the right upper arm (702), and the connecting plate (22) extends into the fourth groove (23) and is rotatably connected thereto via a rotating shaft.
6. A crane boom according to claim 5, characterized in that: A second inclined surface (14) is provided on one side of the left upper arm (701); a transverse groove (20) and a longitudinal groove (21) are provided at one end of the top of the left upper arm (701); the transverse groove (20) and the longitudinal groove (21) are connected; a first inclined surface (12) is provided on one side of the right upper arm (702); a second pusher (13) is provided below the second inclined surface (14); and a first pusher (11) is provided below the first inclined surface (12).
7. A crane boom according to claim 6, characterized in that: An oil barrel (17) is fixedly mounted on the top of the left upper arm (701), one end of the oil barrel (17) is fixedly connected to an oil suction pump (18) via an oil pipe, and the other end of the oil barrel (17) is connected to a switch assembly (19) via an oil pipe.
8. The crane boom according to claim 7, characterized in that: The switch assembly (19) comprises a switch box (25), a first motor (26), an oil inlet pipeline (27) and an oil outlet pipeline (28); the oil inlet pipeline (27) is connected to the oil barrel (17) through an oil pipe; one side of the switch box (25) is connected to the oil inlet pipeline (27); the other side of the switch box (25) is connected to the oil outlet pipeline (28); and the first motor (26) is fixedly connected to the top of the switch box (25).
9. A crane boom according to claim 8, characterized in that: The driving assembly (6) comprises a first mounting plate (5), a driving box (29), a second mounting plate (34), a driving block (30), a driving wheel (31) and a line collecting wheel (32); the first mounting plate (5) is fixedly connected to one side of the connecting block (8); the driving box (29) is fixedly connected to the upper surface of the connecting block (8); the two second mounting plates (34) are fixedly connected to the upper surface of the first mounting plate (5); the line collecting wheel (32) is rotatably connected between the two second mounting plates (34) via a rotating shaft; the driving block (30) is fixedly connected to the upper surface of the second fixed plate (35); one side of the driving block (30) is rotatably connected to the driving wheel (31) via a rotating shaft; the side wall of the line collecting wheel (32) and the driving wheel (31) are meshed with each other via teeth; a support plate (4) is fixedly connected between the first mounting plate (5) and the support rod (3).
10. A crane, characterized in that: The crane boom comprises the crane jib described in any one of claims 1 to 9.