Self-balancing crane windproof inhaul cable device

Abstract

The utility model discloses a self-balancing windproof inhaul cable device for a crane. The self-balancing windproof inhaul cable device comprises a balance beam, an inhaul cable, a connecting plate and a base, a balance beam is horizontally and longitudinally arranged in the middle of the bottom of the cart traveling mechanism which is horizontally and transversely arranged, and the middle of the upper end of the balance beam is vertically and rotatably connected with the cart traveling mechanism in the longitudinal direction; inhaul cables are further vertically and symmetrically arranged under the balance beam relative to the front side and the rear side of the cart walking mechanism, and the upper end of each inhaul cable is vertically and rotationally connected with the front end and the rear end of the balance beam in the longitudinal direction; the lower end of each inhaul cable is vertically and rotationally connected with the upper end of the corresponding connecting plate in the transverse direction, bases are further arranged on the ground corresponding to the positions of the two inhaul cables, and the lower end of each connecting plate is vertically and rotationally connected with the upper end of the corresponding base in the transverse direction. And the loads of the inhaul cables on the two sides are kept balanced all the time through free rotation of the balance beam. According to the utility model, the loads of the two inhaul cables and the two bases can be kept balanced all the time.

Description

A self-balancing crane windproof cable device Technical Field

[0001] This utility model relates to the field of windproof cable technology, specifically to a self-balancing crane windproof cable device. Background Technology

[0002] For large cranes, such as gantry cranes, quay container cranes, bridge grab unloaders, and portal cranes, in the event of extreme storms, the cranes may overturn because their own weight is insufficient to resist the wind load, resulting in huge property damage and even potentially serious casualties.

[0003] To prevent large cranes from overturning in storms, the industry generally adopts the measure of installing windproof cables at the crane's support points. Before a storm arrives, the windproof cables are connected to the cable bases on the ground to ensure the overall stability of the crane during storms. As a very common crane anti-overturning measure, windproof cable devices are equipped on almost all larger cranes and play a crucial role in the safety of the entire machine in storms. Therefore, the accuracy and reliability of the windproof cable device design are extremely important.

[0004] In the design or selection of windproof cables, the angular pressure at a certain support point of the crane is usually taken into account. If the angular pressure is negative, it means that the angle is off the ground and the whole structure is at risk of overturning. Windproof cables need to be installed at that support point. If the negative angular pressure value is large, one or more cables will be arranged symmetrically at each corner. The load of each cable is equal to the negative angular pressure divided by the number of cables.

[0005] However, when two or more cables are installed at a corner, it is assumed that all cables are subjected to equal tension. The load distribution of the cables is not considered, nor is it considered whether there are other factors besides negative angle pressure that can cause the cables to be stressed. This makes the calculation of cable load inaccurate. Moreover, the cables on both sides are independent of each other, and there are no measures to ensure the accurate distribution of cable load, so it is impossible to achieve equal load distribution. This poses a great threat to the safety of the whole machine.

[0006] Therefore, how to keep the load on both sides of the cable balanced has become an urgent problem to be solved. Summary of the Invention

[0007] The technical problem to be solved by this utility model is to provide a self-balancing crane windproof cable device. The upper ends of the two cables are vertically hinged to the two ends of the balance beam. Through the cooperation of the mounting plate, the balance beam and the pin I, it can be ensured that the load of the two cables and the two bases always remains balanced, and the influence of other factors on the load distribution of the cables is eliminated. This ensures that the design load is consistent with the actual load, ensures the reliability of the windproof cable design, ensures that there will be no huge load difference, and guarantees the safety of the windproof cable and the whole machine.

[0008] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: The innovation of this invention is a self-balancing crane windproof cable device, which includes a balance beam, cables, connecting plates, and bases; a balance beam is also horizontally and longitudinally arranged at the bottom center of the horizontally arranged trolley traveling mechanism, and the upper center of the balance beam is vertically and longitudinally rotatably connected to the trolley traveling mechanism; cables are also vertically and symmetrically arranged below the balance beam relative to the front and rear sides of the trolley traveling mechanism, and the upper end of each cable is vertically and longitudinally rotatably connected to the front and rear ends of the balance beam; the lower end of each cable is vertically and laterally rotatably connected to the upper end of the corresponding connecting plate; and bases are respectively provided on the ground relative to the two cable positions, with the lower end of each connecting plate vertically and laterally rotatably connected to the upper end of the corresponding base, thereby ensuring that the load on both cables remains balanced through the free rotation of the balance beam.

[0009] Preferably, the balance beam is an isosceles triangular box structure arranged along the horizontal longitudinal direction, with its two sides facing upwards, and ensuring that the longitudinal length of its base is greater than the longitudinal span of the trolley traveling mechanism, thereby ensuring that the cable does not interfere with the normal operation of the trolley traveling mechanism.

[0010] Preferably, it also includes a mounting plate and a pin I; a mounting plate is vertically welded at the middle of the bottom of the trolley traveling mechanism, and the longitudinal width of the mounting plate is less than half the longitudinal length of the bottom edge of the balance beam; a clearance groove I matching the mounting plate is vertically embedded through the two waist sides of the balance beam near its top, and the lower half of the mounting plate is inserted into the balance beam through the clearance groove I; a pin I is horizontally inserted through the middle of the lower half of the mounting plate, and the pin I is rotatably connected to the mounting plate about its own axis; the two ends of the pin I extend vertically from the left and right sides of the balance beam respectively, and are fixedly connected to the balance beam respectively, so that the balance beam and the trolley traveling mechanism are vertically rotatably connected in the longitudinal direction through the rotational cooperation of the pin I and the mounting plate.

[0011] Preferably, the height of the upper half of the mounting plate must ensure that the trolley traveling mechanism does not interfere with the rotation of the balance beam, and the length and width of the clearance groove I must ensure that the mounting plate does not interfere with the rotation of the balance beam.

[0012] Preferably, it also includes a liner plate I; a liner plate I matching the pin shaft I is coaxially sleeved and fixed on the left inner and outer sides and the right inner and outer sides of the balance beam, respectively. Each of the liner plates I is fixedly connected to the balance beam and does not interfere with the rotation of the balance beam around the mounting plate. Thus, the liner plate I strengthens the balance beam at the position relative to the pin shaft I and limits the axial movement of the pin shaft I.

[0013] Preferably, it further includes a pin II and a liner II; a pin II is horizontally and laterally inserted through the upper end of each cable, and each pin II is fixedly connected to the corresponding position of the upper end of the corresponding cable; both ends of each pin II extend vertically out of the corresponding positions of the left and right sides of the balance beam, and are respectively rotatably connected to the balance beam around its own axis; between the two waist sides of the balance beam and the front and rear ends of the base plate, clearance holes II matching the upper ends of the cables are vertically embedded and inserted, and the clearance holes II ensure that the balance beam does not interfere with the rotation of the cables; a liner II is coaxially sleeved and fixedly fitted on each pin II relative to the left and right sides of the balance beam, and each liner II is respectively fitted to the corresponding positions of the left and right sides of the balance beam, thereby axially limiting the corresponding pin II through the liner II.

[0014] Preferably, it also includes a pin III; a pin III is horizontally and longitudinally inserted through the lower end of each cable, and each pin III is fixedly connected to the corresponding position of the lower end of the corresponding cable; each connecting plate is a figure-eight structure arranged vertically and horizontally, and a waist-shaped hole is vertically embedded through the front surface of its upper half along the direction of cable force, each waist-shaped hole is matched with each pin III, and its setting position is corresponding to the setting position of each pin III, so that the upper end of the connecting plate is axially rotated and connected to the lower end of the corresponding cable around the pin III through the sleeve engagement of the pin III and the waist-shaped hole.

[0015] Preferably, the center distance of each of the waist-shaped holes is 10-20 mm.

[0016] Preferably, it also includes a pin IV and a liner IV; the position of each base corresponds to the position of each cable, and the two bases are symmetrically arranged on the front and rear sides of the trolley traveling mechanism; a pin IV is horizontally and longitudinally penetrating the upper end of each base, and a liner IV matching the pin IV is coaxially sleeved on each pin IV relative to the front and rear sides of the corresponding base, thereby axially limiting the corresponding pin IV through the liner IV, and strengthening the corresponding base at the position relative to the pin IV through the liner IV; the lower end of each connecting plate is coaxially sleeved on the corresponding pin IV relative to the inside of the base, and each connecting plate is rotatably connected to the corresponding pin IV around its own axis; a clearance hole IV matching the connecting plate is vertically embedded in the upper end of each base, and the clearance hole IV ensures that the base does not interfere with the rotation of the connecting plate.

[0017] The beneficial effects of this utility model are:

[0018] (1) This utility model vertically hinges the upper ends of the two cables to the two ends of the balance beam, and then, through the cooperation of the mounting plate, the balance beam and the pin I, it can ensure that the load of the two cables and the two bases is always balanced, and eliminate the influence of other factors on the load distribution of the cables, so that the design load is consistent with the actual load, ensuring the reliability of the windproof cable design, ensuring that there will be no huge load difference, and ensuring the safety of the windproof cable and the whole machine.

[0019] (2) This utility model can adjust the distance between the two pins II and I according to the actual situation to form different lever arm ratios, so that the two cables are always loaded in a certain ratio, ensuring that the cable load distribution is controllable and improving the safety of the whole machine. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 is a structural schematic diagram of a self-balancing crane windproof cable device according to the present invention.

[0022] Figure 2 is an enlarged schematic diagram of the cable section in Figure 1.

[0023] Among them, 1-Tractor traveling mechanism; 2-Mounting plate; 3-Balance beam; 4-Pin I; 5-Cable; 6-Pin II; 7-Pin III; 8-Connecting plate; 9-Pin IV; 10-Base. Detailed Implementation

[0024] The technical solution of this utility model will be clearly and completely described below through specific embodiments.

[0025] This utility model discloses a self-balancing crane windproof cable 5 device, including a balance beam 3, a cable 5, a connecting plate 8, and a base 10. The specific structure is shown in Figures 1 and 2. A balance beam 3 is also horizontally longitudinally arranged at the bottom middle position of the trolley traveling mechanism 1, and the upper middle position of the balance beam 3 is vertically rotatably connected to the trolley traveling mechanism 1 along the longitudinal direction. The balance beam 3 is an isosceles triangular box structure arranged along the horizontal longitudinal direction, with its two sides facing upwards, and ensuring that the longitudinal length of its base is greater than the longitudinal span of the trolley traveling mechanism 1, thereby ensuring that the cable 5 does not interfere with the normal operation of the trolley traveling mechanism 1.

[0026] As shown in Figures 1 and 2, a mounting plate 2 is vertically welded to the middle of the bottom of the trolley traveling mechanism 1, and the longitudinal width of the mounting plate 2 is less than half the longitudinal length of the bottom edge of the balance beam 3. A clearance groove I, matching the mounting plate 2, is vertically embedded and penetrated on both sides of the balance beam 3 near its top, and the lower half of the mounting plate 2 is inserted into the balance beam 3 through the clearance groove I. A pin I4 is horizontally inserted through the middle of the lower half of the mounting plate 2, and the pin I4 is rotatably connected to the mounting plate 2 around its own axis. Both ends of the pin I4 extend vertically from the left and right sides of the balance beam 3 and are fixedly connected to the balance beam 3. Through the rotational engagement of the pin I4 and the mounting plate 2, the balance beam 3 and the trolley traveling mechanism 1 are vertically rotatably connected longitudinally. The height of the upper half of the mounting plate 2 must ensure that the trolley traveling mechanism 1 does not interfere with the rotation of the balance beam 3, and the length and width of the clearance groove I must ensure that the mounting plate 2 does not interfere with the rotation of the balance beam 3.

[0027] In this invention, vertically symmetrical cables 5 are provided directly below the balance beam 3 on both sides of the trolley traveling mechanism 1. The upper end of each cable 5 is vertically rotatably connected to the front and rear ends of the balance beam 3 along the longitudinal direction. As shown in Figures 1 and 2, the lower end of each cable 5 is vertically rotatably connected to the upper end of the corresponding connecting plate 8 along the transverse direction. A base 10 is provided on the ground relative to the positions of the two cables 5, and the lower end of each connecting plate 8 is vertically rotatably connected to the upper end of the corresponding base 10 along the transverse direction. Thus, the load on the cables 5 on both sides is always kept balanced by the free rotation of the balance beam 3.

[0028] As shown in Figures 1 and 2, on the left inner and outer sides and right inner and outer sides of the balance beam 3, respectively, a bushing I that matches the pin I4 is coaxially sleeved and fixed. Each bushing I is fixedly connected to the balance beam 3 and does not interfere with the rotation of the balance beam 3 around the mounting plate 2. Thus, the bushing I strengthens the balance beam 3 at the position relative to the pin I4 and limits the axial movement of the pin I4.

[0029] As shown in Figures 1 and 2, a pin II 6 is horizontally inserted through the upper end of each cable 5, and each pin II 6 is fixedly connected to the corresponding position of the upper end of the corresponding cable 5. Both ends of each pin II 6 extend vertically to the corresponding positions of the left and right sides of the balance beam 3, and are respectively rotatably connected to the balance beam 3 around its own axis. Between the two waist sides of the balance beam 3 and the front and rear ends of the base plate, clearance holes II that match the upper ends of the cables 5 are vertically embedded and inserted, and the clearance holes II ensure that the balance beam 3 does not interfere with the rotation of the cables 5. On each pin II 6, a matching liner II is coaxially sleeved and fixed relative to the left and right sides of the balance beam 3, and each liner II is fitted to the corresponding positions of the left and right sides of the balance beam 3, thereby axially limiting the corresponding pin II 6 through the liner II.

[0030] As shown in Figures 1 and 2, a pin Ⅲ7 is horizontally and longitudinally inserted through the lower end of each cable 5, and each pin Ⅲ7 is fixedly connected to the corresponding position of the lower end of the corresponding cable 5. Each connecting plate 8 is a figure-eight structure arranged vertically and horizontally, and a waist-shaped hole is vertically embedded through the front surface of its upper half along the force direction of the cable 5. Each waist-shaped hole matches each pin Ⅲ7, and its setting position corresponds to the setting position of each pin Ⅲ7. Thus, through the sleeve engagement of the pin Ⅲ7 and the waist-shaped hole, the upper end of the connecting plate 8 and the lower end of the corresponding cable 5 are axially connected around the pin Ⅲ7. The center distance of each waist-shaped hole is 10-20mm.

[0031] As shown in Figures 1 and 2, the position of each base 10 corresponds to the position of each cable 5, and the two bases 10 are symmetrically arranged on the front and rear sides of the trolley traveling mechanism 1. A pin Ⅳ9 is horizontally and longitudinally inserted through the upper end of each base 10, and a liner Ⅳ matching the pin Ⅳ9 is coaxially sleeved on the front and rear sides of the corresponding base 10, thereby axially limiting the corresponding pin Ⅳ9 and strengthening the corresponding base 10 at the position of the pin Ⅳ9. The lower end of each connecting plate 8 is coaxially sleeved on the corresponding pin Ⅳ9 inside the base 10, and each connecting plate 8 is rotatably connected to the corresponding pin Ⅳ9 around its own axis. A clearance hole Ⅳ matching the connecting plate 8 is vertically embedded in the upper end of each base 10, and the clearance hole Ⅳ ensures that the base 10 does not interfere with the rotation of the connecting plate 8.

[0032] In addition to designing the pin hole corresponding to pin III7 as an oblong hole, this utility model can also design the pin holes corresponding to other pins such as pin I4, pin II6 and pin IV9 as oblong holes arranged vertically, thereby ensuring that the cable 5 can only be stretched and not compressed, and also facilitating the insertion and removal of the corresponding pins.

[0033] The working principle of this utility model:

[0034] In operation, the balance beam 3 can rotate freely around pin I4, automatically balancing the load on both sides of the cable 5. This ensures that the total load of the entire windproof cable 5 device is distributed to the two cables 5 and the two bases 10 in inverse proportion to the distance from the middle pin I4 to the two side pins II6 of the balance beam 3. Even when the trolley traveling mechanism 1 is tilted laterally, the free rotation of the balance beam 3 can still effectively ensure the reliability of the load distribution on the cables 5, thus guaranteeing the safety of the large crane under extreme storm conditions. This effectively avoids major accidents and property damage such as the overturning of the entire machine caused by the breakage of the cables 5 or bases 10 due to uneven load distribution on the windproof cables 5.

[0035] The beneficial effects of this utility model are:

[0036] (1) In this utility model, the upper ends of the two cables 5 are vertically hinged to the two ends of the balance beam 3 respectively. Then, through the cooperation of the mounting plate 2, the balance beam 3 and the pin I4, it can ensure that the loads of the two cables 5 and the two bases 10 are always balanced, and eliminate the influence of other factors on the load distribution of the cables 5, so that the design load is consistent with the actual load, ensuring the reliability of the windproof cable 5 design, ensuring that there will be no huge load difference, and ensuring the safety of the windproof cable 5 and the whole machine.

[0037] (2) This utility model can adjust the distance between the two pins II6 and I4 according to the actual situation to form different lever arm ratios, so that the two cables 5 are always loaded in a certain ratio, ensuring that the load distribution of the cables 5 is controllable and improving the safety of the whole machine.

[0038] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the concept and scope of the present utility model. Without departing from the design concept of the present utility model, all modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope of the present utility model. The technical content for which protection is sought in the present utility model has been fully recorded in the technical requirements.

Claims

1. A self-balancing crane windproof cable device, characterized in that: The system includes a balance beam, cables, connecting plates, and bases. A balance beam is horizontally positioned at the bottom center of the horizontally arranged trolley traveling mechanism, with its upper center connected to the trolley traveling mechanism vertically along the longitudinal direction. Cables are vertically symmetrically positioned below the balance beam relative to the front and rear sides of the trolley traveling mechanism, with the upper end of each cable connected vertically along the longitudinal direction to the front and rear ends of the balance beam. The lower end of each cable is connected vertically along the horizontal direction to the upper end of the corresponding connecting plate. Bases are also positioned on the ground relative to the two cable positions, with the lower end of each connecting plate connected vertically along the horizontal direction to the upper end of the corresponding base. This allows the free rotation of the balance beam to maintain a balanced load on the cables on both sides.

2. The self-balancing crane windproof cable device according to claim 1, characterized in that: The balance beam is an isosceles triangular box structure arranged in the horizontal longitudinal direction, with its two sides facing upwards, and its longitudinal length at the base is greater than the longitudinal span of the trolley traveling mechanism, thereby ensuring that the cable does not interfere with the normal operation of the trolley traveling mechanism.

3. The self-balancing crane windproof cable device according to claim 2, characterized in that: It also includes a mounting plate and pin I; a mounting plate is vertically welded to the middle of the bottom of the trolley traveling mechanism, and the longitudinal width of the mounting plate is less than half the longitudinal length of the bottom edge of the balance beam; a clearance groove I matching the mounting plate is vertically embedded through the two waist sides of the balance beam near its top, and the lower half of the mounting plate is inserted into the balance beam through the clearance groove I; a pin I is horizontally inserted through the middle of the lower half of the mounting plate, and the pin I is rotatably connected to the mounting plate around its own axis; the two ends of the pin I extend vertically out of the left and right sides of the balance beam respectively, and are fixedly connected to the balance beam respectively, so that the balance beam and the trolley traveling mechanism are vertically rotatably connected in the longitudinal direction through the rotational cooperation of the pin I and the mounting plate.

4. The self-balancing crane windproof cable device according to claim 3, characterized in that: The height of the upper half of the mounting plate must ensure that the trolley traveling mechanism does not interfere with the rotation of the balance beam, and the length and width of the clearance groove I must ensure that the mounting plate does not interfere with the rotation of the balance beam.

5. A self-balancing crane windproof cable device according to claim 3, characterized in that: It also includes a liner plate I; on the pin I, a liner plate I matching the pin I is coaxially sleeved and fixed on the left inner and outer sides and the right inner and outer sides of the balance beam, respectively. Each of the liner plates I is fixedly connected to the balance beam and does not interfere with the rotation of the balance beam around the mounting plate. Thus, the liner plate I strengthens the balance beam at the position relative to the pin I and limits the axial movement of the pin I.

6. A self-balancing crane windproof cable device according to claim 3, characterized in that: It also includes pins II and liners II; a pin II is horizontally and laterally inserted through the upper end of each cable, and each pin II is fixedly connected to the corresponding position of the upper end of the cable; both ends of each pin II extend vertically out of the corresponding positions of the left and right sides of the balance beam, and are respectively rotatably connected to the balance beam around its own axis; between the two waist sides of the balance beam and the front and rear ends of the base plate, clearance holes II matching the upper ends of the cables are vertically embedded and inserted, and the clearance holes II ensure that the balance beam does not interfere with the rotation of the cables; on each pin II, a matching liner II is coaxially sleeved and fixedly fitted to the left and right sides of the balance beam, and each liner II is respectively fitted to the corresponding positions of the left and right sides of the balance beam, thereby axially limiting the corresponding pin II through the liner II.

7. A self-balancing crane windproof cable device according to claim 1, characterized in that: It also includes a pin III; a pin III is horizontally and longitudinally inserted through the lower end of each cable, and each pin III is fixedly connected to the corresponding position of the lower end of the corresponding cable; each connecting plate is a figure-eight structure arranged vertically and horizontally, and a waist-shaped hole is vertically embedded through the front surface of its upper half along the direction of cable force, each waist-shaped hole matches each pin III, and its setting position corresponds to the setting position of each pin III, so that the upper end of the connecting plate is axially rotated and connected to the lower end of the corresponding cable around the pin III through the sleeve cooperation of the pin III and the waist-shaped hole.

8. A self-balancing crane windproof cable device according to claim 7, characterized in that: The center distance of each of the aforementioned waist-shaped holes is 10–20 mm.

9. A self-balancing crane windproof cable device according to claim 7, characterized in that: It also includes a pin IV and a liner IV; the position of each base corresponds to the position of each cable, and the two bases are symmetrically arranged on the front and rear sides of the trolley traveling mechanism; a pin IV is horizontally and longitudinally inserted through the upper end of each base, and a liner IV matching the pin IV is coaxially sleeved on the front and rear sides of the corresponding base on each pin IV, thereby axially limiting the corresponding pin IV and strengthening the corresponding base at the position of the pin IV; the lower end of each connecting plate is coaxially sleeved on the corresponding pin IV relative to the inside of the base, and each connecting plate is rotatably connected to the corresponding pin IV around its own axis; a clearance hole IV matching the connecting plate is vertically embedded in the upper end of each base, and the clearance hole IV ensures that the base does not interfere with the rotation of the connecting plate.

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