Combined lifting appliance for crane

Abstract

The utility model discloses a combined lifting appliance for a crane, relates to the technical field of cranes, and aims to solve the technical problem that the stability is insufficient when cylindrical objects are lifted due to the fact that the conventional combined lifting appliance is not adaptive to the lifting of the cylindrical objects. Comprising a lifting frame, a driving mechanism mounted on the lifting frame and a lifting mechanism arranged at the lower end of the lifting frame, and the driving mechanism comprises a first mounting plate, a second mounting plate and a second rotating shaft rotationally mounted on the lifting frame, a first rotating shaft is rotatably mounted between the first mounting plate and the second mounting plate, a motor for driving the first rotating shaft is arranged on one side of the upper end face of the hoisting frame, the hoisting mechanism comprises a mounting shell, and mounting rods are symmetrically welded to the upper end of the mounting shell. The hoisting tool has the advantages that the hoisting tool is provided with a plurality of hoisting structures, the hoisting structures can be matched with the shapes of cylindrical objects, and the hoisting stability of the cylindrical objects can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of cranes, and more particularly to a combined sling for cranes. Background Art

[0002] A crane, also known as a hoist, is a multi-action lifting machine capable of vertically lifting and horizontally transporting heavy objects within a certain range. It is an essential piece of equipment in modern industrial production and logistics. The bridge is the crane's primary load-bearing structure and consists of a main beam, end beams, and a platform.

[0003] Cranes often use modular spreaders to lift long and heavy objects. Currently, these spreaders support objects from below, making them less suitable for cylindrical objects. For example, heavy wooden piles can easily roll on the spreader's supports, making it difficult to ensure balanced lifting. This leads to insufficient stability when lifting cylindrical objects, posing a safety risk. To address this issue, we propose a modular spreader for cranes. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide a combined sling for a crane to solve the technical problem that the current combined sling is not sufficiently suitable for lifting cylindrical objects, resulting in insufficient stability when lifting cylindrical objects.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a combined sling for a crane, comprising a lifting frame, a driving mechanism installed on the lifting frame, and a lifting mechanism arranged at the lower end of the lifting frame, wherein the side ends of the lifting frame are welded with lifting ears in an array, and the lifting ears are provided with hook holes;

[0006] The driving mechanism includes a first mounting plate and a second mounting plate welded to the upper end of the hanging frame and a second rotating shaft rotatably mounted on the hanging frame, the first rotating shaft being rotatably mounted between the first mounting plate and the second mounting plate, a motor driving the first rotating shaft being provided on one side of the upper end surface of the hanging frame, a first bevel gear being equidistantly provided on the first rotating shaft, a second bevel gear being installed on the upper end of the second rotating shaft, the second bevel gear being meshed with the first bevel gear, and a third bevel gear being installed on the lower end of the second rotating shaft extending to the lower side of the hanging frame;

[0007] The hanging mechanism comprises a mounting shell, an upper end of the mounting shell is symmetrically welded with a mounting rod, and the end of the mounting rod is welded and fixed to the side end of the hanging frame.

[0008] Preferably, the mounting shell is semi-annular in shape, and a first support plate and a second support plate are symmetrically arranged in the mounting shell, and outer surfaces of the first support plate and the second support plate are both provided with meshing teeth.

[0009] Preferably, the first support plate and the second support plate are both arranged in a semi-circular shape, the roundness of the first support plate and the second support plate is consistent with the roundness of the mounting shell, and the starting ends of the first support plate and the second support plate both extend out of the mounting shell.

[0010] Preferably, a third mounting plate and a fourth mounting plate are symmetrically installed on the side ends of the mounting shell, an inner rotating shaft is rotatably installed between the third mounting plate and the fourth mounting plate, a first gear is installed on the inner rotating shaft, and an outer rotating shaft is rotatably installed on the side end of the fourth mounting plate located outside the inner rotating shaft, and a second gear is installed on the outer rotating shaft.

[0011] Preferably, a driving opening is opened at the upper end of the mounting shell, the first gear and the second gear are both located in the driving opening, and the first gear and the second gear are respectively engaged with the meshing teeth of the first support plate and the second support plate.

[0012] Preferably, the end of the inner rotating shaft extends through the fourth mounting plate and is mounted with a fifth bevel gear, the outer rotating shaft extends through the fourth mounting plate and is mounted with a fourth bevel gear, and the third bevel gear is meshed and transmission-connected with the fourth bevel gear and the fifth bevel gear.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. The utility model designs a mounting shell structure. The semi-circular mounting shell can limit and install the semi-circular first support plate and the second support plate. The rotation of the first gear and the second gear can realize the adjustment of the two support plates, thereby limiting the hoisting of the cylindrical body. The setting of multiple mounting shells can increase the limiting and contact points of the cylindrical object, which can improve the stability of the cylindrical object hoisting.

[0015] 2. The present invention also designs the structure of the first support plate and the second support plate. The semi-circular first support plate and the second support plate can form a circle after adjustment, which can adapt to the shape of cylindrical objects. The first support plate and the second support plate are staggered and overlapped at the beginning to increase the support area of ​​the cylindrical object, thereby achieving the effect of stable support and limiting the cylindrical object, and solving the problem that the current combined sling is not suitable for lifting cylindrical objects, resulting in insufficient stability when lifting cylindrical objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view structural diagram of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the hoisting mechanism of the utility model;

[0018] Figure 3It is a partial cross-sectional structural schematic diagram of the utility model;

[0019] Figure 4 It is a partial top view structural diagram of the utility model;

[0020] Figure 5 This is a schematic diagram of a usage state of the utility model.

[0021] Explanation of the numbers in the figure: 101, lifting frame; 102, lifting ear; 200, driving mechanism; 201, first mounting plate; 202, second mounting plate; 203, first rotating shaft; 204, motor; 205, first bevel gear; 206, second bevel gear; 207, second rotating shaft; 208, third bevel gear; 300, lifting mechanism; 301, mounting shell; 302, mounting rod; 303, driving port; 304, first supporting plate; 305, second supporting plate; 306, meshing teeth; 307, third mounting plate; 308, fourth mounting plate; 309, inner rotating shaft; 310, first gear; 311, outer rotating shaft; 312, second gear; 313, fourth bevel gear; 314, fifth bevel gear. DETAILED DESCRIPTION

[0022] like Figures 1 to 5 As shown, the utility model relates to a combined lifting device for a crane, comprising a lifting frame 101, a driving mechanism 200 installed on the lifting frame 101, and a lifting mechanism 300 arranged at the lower end of the lifting frame 101. The side end of the lifting frame 101 is welded with a lifting lug 102 in an array, and the lifting lug 102 is provided with a hook hole;

[0023] The driving mechanism 200 includes a first mounting plate 201 and a second mounting plate 202 welded to the upper end of the hanging frame 101, and a second rotating shaft 207 rotatably mounted on the hanging frame 101. A first rotating shaft 203 is rotatably mounted between the first mounting plate 201 and the second mounting plate 202. A motor 204 for driving the first rotating shaft 203 is provided on one side of the upper end surface of the hanging frame 101. First bevel gears 205 are equidistantly provided on the first rotating shaft 203. A second bevel gear 206 is installed on the upper end of the second rotating shaft 207. The second bevel gear 206 is meshed with the first bevel gear 205. The lower end of the second rotating shaft 207 extends to the bottom of the hanging frame 101 and is installed with a third bevel gear 208.

[0024] The hoisting mechanism 300 includes a mounting shell 301, with mounting rods 302 symmetrically welded to the upper end of the mounting shell 301. The ends of the mounting rods 302 are welded and fixed to the side ends of the hoisting frame 101. The present invention provides multiple hoisting structures, and the hoisting structures can adapt to the shape of cylindrical objects. The multiple hoisting structures can increase the number of limiting and contact points for cylindrical objects, which can ensure the stability of the hoisting of cylindrical objects.

[0025] Specifically, the mounting housing 301 is semi-annular in shape, housing a symmetrically arranged first and second support plates 304, 305. The outer surfaces of each of the first and second support plates 304, 305 are provided with meshing teeth 306. The semi-annular mounting housing 301 allows for positioning and mounting of the semi-annular first and second support plates 304, 305. Rotation of the first and second gears 310, 312 adjusts the two support plates, thereby enabling position-limited hoisting of the cylindrical body.

[0026] Furthermore, the first support plate 304 and the second support plate 305 are both arranged in a semi-circular shape, and the roundness of the first support plate 304 and the second support plate 305 is consistent with the roundness of the mounting shell 301. The starting ends of the first support plate 304 and the second support plate 305 both extend outside the mounting shell 301. The semi-circular arrangement of the first support plate 304 and the second support plate 305 can be adjusted to form a circle, which can adapt to the shape of a cylindrical object. The staggered and overlapping starting ends of the first support plate 304 and the second support plate 305 increase the support area for the cylindrical object, thereby achieving the effect of stably supporting and limiting the cylindrical object.

[0027] It is worth noting that the side ends of the mounting shell 301 are symmetrically installed with a third mounting plate 307 and a fourth mounting plate 308, an inner rotating shaft 309 is rotatably installed between the third mounting plate 307 and the fourth mounting plate 308, and a first gear 310 is installed on the inner rotating shaft 309, and the side end of the fourth mounting plate 308 is located on the outside of the inner rotating shaft 309 and is rotatably installed with an outer rotating shaft 311, and a second gear 312 is installed on the outer rotating shaft 311.

[0028] It is worth noting that the upper end of the mounting housing 301 defines a drive opening 303, within which a first gear 310 and a second gear 312 are located. The first gear 310 and the second gear 312 are respectively engaged with the meshing teeth 306 of the first support plate 304 and the second support plate 305. The first gear 310 and the second gear 312 rotate to mate with the meshing teeth 306, allowing the first support plate 304 and the second support plate 305 to be adjusted, thereby limiting the position of the cylindrical body.

[0029] It is noteworthy that the end of the inner rotating shaft 309 extends through the fourth mounting plate 308 and is mounted with a fifth bevel gear 314, the outer rotating shaft 311 extends through the fourth mounting plate 308 and is mounted with a fourth bevel gear 313, and the third bevel gear 208 is meshed and transmission-connected with the fourth bevel gear 313 and the fifth bevel gear 314. When the motor 204 is in operation, it can rotate the first rotating shaft 203, the first bevel gear 205 can drive the second bevel gear 206 to rotate the second rotating shaft 207, and the third bevel gear 208 can respectively drive the fourth bevel gear 313 and the fifth bevel gear 314 to rotate the inner rotating shaft 309 and the outer rotating shaft 311, thereby rotating the first gear 310 and the second gear 312 to adjust the first support plate 304 and the second support plate 305.

[0030] Working principle: This embodiment provides a combined lifting device for cranes. When using it to lift a cylindrical object, the first support plate 304 and the second support plate 305 are located outside the cylindrical object. The motor 204 is used to rotate the first rotating shaft 203. Under the driving force of multiple gears, the first support plate 304 and the second support plate 305 can move along their own axis, such as Figure 5 The starting ends of the first support plate 304 and the second support plate 305 can be supported on the lower end of the cylindrical object. The cylindrical object can be stably limited through multiple lifting mechanisms 300, and then the crane can lift the cylindrical object to ensure the lifting stability.

[0031] The embodiments disclosed in the present invention are preferred embodiments, but are not limited to them. Ordinary technicians in this field can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. As long as they do not deviate from the spirit of the present invention, they are all within the scope of protection of the present invention.

Claims

1. A combined spreader for a crane, characterized in that: The invention comprises a hanging frame (101), a driving mechanism (200) installed on the hanging frame (101), and a hanging mechanism (300) arranged at the lower end of the hanging frame (101); the side ends of the hanging frame (101) are welded with hanging ears (102) in an array; and the hanging ears (102) are provided with hook holes. The driving mechanism (200) comprises a first mounting plate (201) and a second mounting plate (202) welded to the upper end of the hanging frame (101), and a second rotating shaft (207) rotatably mounted on the hanging frame (101); a first rotating shaft (203) is rotatably mounted between the first mounting plate (201) and the second mounting plate (202); a motor (204) for driving the first rotating shaft (203) is provided on one side of the upper end surface of the hanging frame (101); first bevel gears (205) are equidistantly provided on the first rotating shaft (203); a second bevel gear (206) is mounted on the upper end of the second rotating shaft (207); the second bevel gear (206) is meshedly connected with the first bevel gear (205); and a third bevel gear (208) is mounted on the lower end of the second rotating shaft (207) extending to the lower side of the hanging frame (101); The hanging mechanism (300) comprises a mounting shell (301), the upper end of the mounting shell (301) is symmetrically welded with a mounting rod (302), and the end of the mounting rod (302) is welded and fixed to the side end of the hanging frame (101).

2. A combined crane spreader according to claim 1, characterized in that: The mounting shell (301) is arranged in a semi-annular shape, and a first support plate (304) and a second support plate (305) are symmetrically arranged in the mounting shell (301), and the outer surfaces of the first support plate (304) and the second support plate (305) are both provided with meshing teeth (306).

3. The combined crane spreader according to claim 2, characterized in that: The first support plate (304) and the second support plate (305) are both arranged in a semi-circular shape, the roundness of the first support plate (304) and the second support plate (305) is consistent with the roundness of the mounting shell (301), and the starting ends of the first support plate (304) and the second support plate (305) both extend out of the mounting shell (301).

4. A combined crane spreader according to claim 3, characterized in that: A third mounting plate (307) and a fourth mounting plate (308) are symmetrically mounted on the side ends of the mounting shell (301); an inner rotating shaft (309) is rotatably mounted between the third mounting plate (307) and the fourth mounting plate (308); a first gear (310) is mounted on the inner rotating shaft (309); an outer rotating shaft (311) is rotatably mounted on the side end of the fourth mounting plate (308) outside the inner rotating shaft (309); and a second gear (312) is mounted on the outer rotating shaft (311).

5. The combined crane spreader according to claim 4, characterized in that: A driving opening (303) is provided at the upper end of the mounting shell (301), the first gear (310) and the second gear (312) are both located in the driving opening (303), and the first gear (310) and the second gear (312) are respectively engaged with the meshing teeth (306) of the first support plate (304) and the second support plate (305).

6. The combined crane spreader according to claim 5, characterized in that: The end of the inner rotating shaft (309) extends through the fourth mounting plate (308) and is mounted with a fifth bevel gear (314); the outer rotating shaft (311) extends through the fourth mounting plate (308) and is mounted with a fourth bevel gear (313); the third bevel gear (208) is meshed and transmission-connected with the fourth bevel gear (313) and the fifth bevel gear (314).

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