Cable wind device for suspension arm of large crane

Abstract

The utility model discloses a cable wind device for a lazy arm of a large crane. The cable wind device comprises a hoop capable of being detachably fixed to the lazy arm; the two ends of the L-shaped rod are rotatably hinged to the hinged through holes of the hoop, a triangular double-eye plate is arranged on the L-shaped rod, the steel wire rope can penetrate through the triangular double-eye plate, the triangular double-eye plate is bent reversely to form a rope loop, and a through hole is formed in the triangular double-eye plate; and the double-end rod is rotatably hinged with the L-shaped rod. The hoop is fixed to the suspension arm, the two ends of an L-shaped rod of the suspension arm cable wind device of the large crane are rotatably hinged to the hoop, the top end of a double-end rod is rotatably hinged to the L-shaped rod, and the bottom end of the double-end rod is rotatably hinged to the hoop, so that triangular double-eye plates on the suspension arm cable wind device of the two large cranes are connected with rope ferrules of the single-wheel pulley counterweight device in a sleeved mode. Due to the fact that the two ends of the L-shaped rod and the double-end rod are installed in a rotatable hinged mode to support the single-wheel pulley balance weight device, slight compensation can be obtained when large wind load displacement occurs, and the problem that the single-wheel pulley balance weight device cannot adapt to the large wind load environment is solved.

Description

Technical Field

[0001] The utility model relates to a wind cable device for a large crane boom, belonging to the technical field of wind cable devices. Background Art

[0002] Large cranes are often used for hoisting large components in wind power. When lifting and installing heavy objects, the main arm of the crane is subject to a large wind load, which will cause corresponding shaking, affecting the hoisting safety and installation docking accuracy. Therefore, it is necessary to install a cable wind device on the arm of the large crane to install a single-wheel pulley counterweight device for stability.

[0003] The existing cable wind device technology can be found in Chinese patent announcement number CN217808406U, and the disclosed technology is: one end of the first support rod and the second support rod are fixedly connected to the third support rod; it can be seen that the installation point constructed on the boom is composed of three rods fixedly connected, and the displacement caused by strong wind load cannot be slightly compensated, and there is a problem that it cannot adapt to the strong wind load environment. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a large crane boom wind cable device.

[0005] The utility model is realized through the following technical solutions.

[0006] The utility model provides a large crane boom wind cable device, comprising:

[0007] A clamp that can be detachably fixed to the boom;

[0008] An L-shaped rod with two ends rotatably connected to the hinged through holes of the hoop, the L-shaped rod is provided with a triangular double-eye plate for the wire rope to pass through and bend in the reverse direction to form a rope loop, and the triangular double-eye plate is provided with through holes;

[0009] A double-ended rod rotatably articulated with an L-shaped rod.

[0010] The clamp comprises an upper half ring, a lower half ring rotatably connected to the upper half ring via a rotating shaft C, connecting bolts for screwing and fixing the lower half ring with the upper half ring, and a double-ear connecting plate fixed on the lower half ring.

[0011] The double-ear connecting plate has a body, the body is provided with a hinged through hole, and reinforcement rings are fixed on both sides of the hinged through hole.

[0012] The L-shaped rod comprises a first double-ear plate provided with a docking through hole A, the first double-ear plate is fixed with a horizontal rod, the horizontal rod is vertically fixedly connected with a vertical rod, the vertical rod is fixedly connected with a second double-ear plate, and the second double-ear plate is provided with a docking through hole B.

[0013] A lifting lug is fixed at the vertical intersection of the horizontal rod and the vertical rod, and a triangular double eye plate is fixed at the end of the horizontal rod at the vertical intersection of the horizontal rod and the vertical rod.

[0014] The double-headed rod comprises a single-ear plate fixedly connected to the vertical rod, and the single-ear plate is rotatably hinged with an inclined rod through a third rotating hole and a rotating shaft on the third double-ear plate.

[0015] A fourth double-ear plate is fixed at the bottom of the oblique rod, and the fourth double-ear plate can be rotatably hinged with the hinged through hole of the clamp through the hinged rotating shaft.

[0016] The beneficial effects of the utility model are: the clamp is fixed on the boom, both ends of the L-shaped rod of a large crane boom wind cable device are rotatably hinged on the clamp, the top of the double-headed rod is rotatably hinged to the L-shaped rod, and the bottom of the double-headed rod is rotatably hinged to the clamp, so that the triangular double eye plates on the two large crane boom wind cable devices are connected to the rope loop of the single-wheel pulley counterweight device. Since the two ends of the L-shaped rod and the double-headed rod are rotatably hinged to support the single-wheel pulley counterweight device, the displacement of the strong wind load can be slightly compensated, thereby solving the problem of not being able to adapt to the strong wind load environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the main view of the counterweight device of a single-wheel pulley of the utility model;

[0018] Figure 2 It is a side view schematic diagram of the pulley structure and the connection structure of the single-wheel pulley counterweight device of the utility model;

[0019] Figure 3 It is a schematic diagram of a hoop in a wind cable device for a large crane boom of the utility model;

[0020] Figure 4 It is a schematic diagram of a double-ear connecting plate in a large crane boom wind cable device of the utility model;

[0021] Figure 5 It is a schematic diagram of the main view of the L-shaped rod in the wind cable device of the large crane boom of the utility model;

[0022] Figure 6 It is a schematic diagram of a top view of an L-shaped rod in a wind cable device for a large crane boom of the utility model;

[0023] Figure 7 It is a schematic diagram of the main view of the L-shaped rod and the double-headed rod in the large crane boom wind cable device of the utility model;

[0024] Figure 8 It is a schematic diagram of the utility model when the large crane boom wind cable device is connected with the single-wheel pulley counterweight device for use;

[0025] Fig. 9It is a schematic diagram of the lifting lug in the wind cable device of the large crane boom of the utility model;

[0026] In the figure: 1- pulley structure; 12- connecting steel plate; 13- long strip plate; 14- pulley frame; 15- pulley; 16- rotating shaft; 17- limit block;

[0027] 2-connection structure; 21-U-shaped end plate; 22-pin shaft; 23-baffle; 24-U-shaped connecting buckle; 25-O-shaped block;

[0028] 3-counterweight structure; 31-shackle; 32-shackle pin; 33-triangular plate; 34-counterweight body;

[0029] 4-rope loop structure; 41-rope loop; 42-clamping member; 43-wire rope;

[0030] 5-hoop; 51-upper half ring; 52-rotation axis C; 53-lower half ring; 54-connecting bolt; 55-double-ear connecting plate; 551-body; 552-hinged through hole; 553-reinforcement ring;

[0031] 6-L-shaped rod; 61-first double-ear plate; 62-butt-joint through hole A; 63-horizontal; 64-vertical rod; 65-hanging ear; 67-second double-ear plate; 68-butt-joint through hole B;

[0032] 7- double-headed rod; 71- single-ear plate; 72- third double-ear plate; 74- oblique rod; 75- fourth double-ear plate. DETAILED DESCRIPTION

[0033] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0034] like Figures 1 to 9 shown.

[0035] A large crane boom wind cable device of the present application comprises:

[0036] The hoop 5 can be detachably fixed to the boom. Each large crane boom wind cable device has three hoop 5. When two large crane boom wind cable devices are used to connect the rope loops 41 at both ends of the rope loop structure, there are six hoop 5.

[0037] The clamp 5 includes an upper half ring 51, a lower half ring 53 rotatably connected to the upper half ring 51 via a rotating shaft C52, a connecting bolt 54 for screwing and fixing the lower half ring 53 and the upper half ring 51, and a double-ear connecting plate 55 fixed to the lower half ring 53; the double-ear connecting plate 55 has a main body 551, the main body 551 is provided with a hinged through hole 552, and reinforcement rings 553 are fixed on both sides of the hinged through hole 552.

[0038] It also includes an L-shaped rod 6 in a vertical L-shape, and the two ends of the L-shaped rod 6 are rotatably hinged with the hinged through holes 552 of the hoop 5; the L-shaped rod 6 includes a first double-ear plate 61 with a docking through hole A62, the first double-ear plate 61 is fixed with a horizontal rod 63, the horizontal rod 63 is vertically fixedly connected with a vertical rod 64, the vertical rod 64 is fixedly connected with a second double-ear plate 67, and the second double-ear plate 67 is provided with a docking through hole B68; the horizontal rod 63 and the vertical rod 64 are vertically intersected with a hanging ear 65, and the end of the horizontal rod 63 at the vertical intersection of the horizontal rod 63 and the vertical rod 64 is fixed with a triangular double-eye plate 66, and the triangular double-eye plate 66 is provided with a through hole for the steel wire 43 to pass through the reverse bending and fastening with the clamping member 42 to form a rope loop 41. When the L-shaped rod 6 is installed on the boom, the horizontal rod 63 and the vertical rod 64 are in the same horizontal plane, and the bottom of the horizontal rod 63 and the vertical rod 64 are vertically supported by the double-headed rod 7.

[0039] The double-headed rod 7 includes a single-ear plate 71 fixedly connected to the vertical rod 64. The single-ear plate 71 is rotatably hinged with an inclined rod 74 through a third rotating hole 73 and a rotating axis on a third double-ear plate 72. A fourth double-ear plate 75 is fixed to the bottom of the inclined rod 74. The fourth double-ear plate 75 is rotatably hinged with a hinged through hole 552 of the clamp 5 through a hinged rotating axis.

[0040] The single-wheel pulley counterweight device comprises:

[0041] The rope loop structure 4 is connected to the counterweight structure 3 in a rolling and adjustable manner through the pulley structure 1 and the connecting structure 2.

[0042] The pulley structure 1 comprises a pulley frame 14 with a space in the middle, and a long strip 13 is fixedly installed on the outer side of the pulley frame 14 for reinforcement;

[0043] A pulley 15 is rotatably mounted in the space between the pulley frames 14 through a rotating shaft 16, and a connecting steel plate 12 is installed above and below the pulley 15. The connecting steel plate 12 limits the rolling matching space between the steel wire rope 43 and the pulley 15. The rotating shaft 16 has limit blocks 17 at both ends to limit the position outside the long strip 13.

[0044] The connecting structure 2 includes a U-shaped end plate 21 connected to the bottom of the pulley frame 14 through a pin shaft 22, a U-shaped connecting buckle 24 is welded and fixedly connected to the bottom of the U-shaped end plate 21, an O-shaped block 25 is hooked and installed on the U-shaped connecting buckle 24, and the bottom of the O-shaped block 25 is used to hook the shackle 31 of the counterweight structure 3; baffles 23 are provided at both ends of the pin shaft 22 for limiting.

[0045] The counterweight structure 3 includes a shackle 31 hooked with the bottom of the O-shaped block 25 . The shackle 31 is connected to a triangular plate 33 via a shackle pin 32 . The triangular plate 33 is fixedly connected to the counterweight body 34 .

[0046] The rope loop structure 4 includes a steel wire rope 43 that is inserted from the pulley frame 14 and can roll with the pulley 15. The two ends of the steel wire rope 43 are bent and clamped by a clamping member 42 to form a rope loop 41. The rope loop 41 is used to be inserted into the through hole of the triangular double eye plate 66.

[0047] The counterweight body 34 is pulled vertically downward through the triangular plate 33, the shackle pin 32, the shackle 31, the U-shaped end plate 21 and the pulley frame 14, and the wire rope 43 of the rope loop structure 4 is inserted into the pulley frame 14 at intervals and rollably cooperates with the pulley 15, thereby realizing a rolling and adjustable connection between the rope loop structure 4 and the counterweight structure 3 through the pulley structure 1 and the connecting structure 2.

[0048] When in use, the steel wire rope 43 passes through the pulley frame 14 and can roll with the pulley 15, and the two ends of the steel wire rope 43 are then passed through the through holes of the triangular double eye plate 66, and the two ends of the steel wire rope 43 are bent in the opposite direction, and the bent part of the steel wire rope 43 is tied with the clamping piece 42 to form a rope loop 41.

[0049] When the single-wheel pulley counterweight device is installed on the boom of the crane through the large crane boom cable wind device, two large crane boom cable wind devices are used, each of which has six clamps 5, and each large crane boom cable wind device has three clamps 5. The clamps 5 are fixed on the boom, and both ends of the L-shaped rod 6 of a large crane boom cable wind device are rotatably hinged on the clamps 5, the top of the double-headed rod 7 is rotatably hinged to the L-shaped rod 6, and the bottom of the double-headed rod 7 is rotatably hinged to the clamp 5, so that the triangular double eye plates 66 on the two large crane boom cable wind devices are connected with the rope loop 41 of the single-wheel pulley counterweight device. Since the two ends of the L-shaped rod 6 and the double-headed rod 7 are rotatably hinged to support the single-wheel pulley counterweight device, the displacement of the strong wind load can be slightly compensated, thereby solving the problem of not being able to adapt to the strong wind load environment.

Claims

1. A large crane boom wind cable device, characterized in that: include;: A hoop (5) that can be detachably fixed to the boom; An L-shaped rod (6) with two ends rotatably hinged to the hinged through holes (552) of the hoop (5), the L-shaped rod (6) being provided with a triangular double eye plate (66) for the steel wire rope (43) to pass through and bend in the reverse direction to form a rope loop (41), the triangular double eye plate (66) being provided with through holes; A double-headed rod (7) is rotatably hinged to the L-shaped rod (6).

2. The large crane boom wind cable device according to claim 1, characterized in that: The hoop (5) comprises an upper half ring (51), a lower half ring (53) rotatably connected to the upper half ring (51) via a rotation axis C (52), a connecting bolt (54) for screwing and fixing the lower half ring (53) and the upper half ring (51), and a double-ear connecting plate (55) fixed to the lower half ring (53).

3. The large crane boom wind cable device according to claim 2, characterized in that: The double-ear connecting plate (55) has a main body (551), the main body (551) is provided with a hinged through hole (552), and reinforcement rings (553) are fixed on both sides of the hinged through hole (552).

4. The large crane boom wind cable device according to claim 1, characterized in that: The L-shaped rod (6) comprises a first double-ear plate (61) provided with a docking through hole A (62), the first double-ear plate (61) is fixed with a horizontal rod (63), the horizontal rod (63) is vertically fixedly connected with a vertical rod (64), the vertical rod (64) is fixedly connected with a second double-ear plate (67), and the second double-ear plate (67) is provided with a docking through hole B (68).

5. The large crane boom wind cable device according to claim 4, characterized in that: A lifting lug (65) is fixed at the vertical intersection of the horizontal rod (63) and the vertical rod (64), and a triangular double eye plate (66) is fixed at the end of the horizontal rod (63) at the vertical intersection of the horizontal rod (63) and the vertical rod (64).

6. The large crane boom wind cable device according to claim 1, characterized in that: The double-headed rod (7) comprises a single-ear plate (71) fixedly connected to the vertical rod (64); the single-ear plate (71) is rotatably hinged with an inclined rod (74) through a third rotating hole (73) on a third double-ear plate (72) and a rotating shaft.

7. The large crane boom wind cable device according to claim 6, characterized in that: A fourth double-ear plate (75) is fixed to the bottom of the oblique rod (74), and the fourth double-ear plate (75) is rotatably hinged to the hinge through hole (552) of the hoop (5) via a hinge rotation axis.

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