Hoisting device for crane

Abstract

The utility model relates to the technical field of crane hoisting, and discloses a hoisting device for a crane, which comprises a steel wire hoisting rope and a limiting mechanism, the limiting mechanism comprises a hoisting piece, an open groove, a rotating hole, a sliding groove and a limiting groove are arranged in the hoisting piece, the hoisting piece is fixedly provided with a mounting frame through a mounting groove, and the mounting frame is provided with a limiting groove. A push plate can be driven to rotate through a limiting mechanism and rotation of a rotating handle, when the push plate abuts against the upper end of a sliding frame, the sliding frame can be pushed to slide along a sliding groove, and in the process, a push rod extrudes the strong spring, so that the sliding frame loses the limiting effect on a lifting hook; and after hoisting is completed, the sliding frame can automatically reset and fix the lifting hook only by loosening the rotating handle, and compared with a traditional crane, the mode is more convenient and rapid when the materials are hoisted, and unhooking is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of crane hoisting, in particular to a hoisting device for a crane. Background Art

[0002] A crane refers to a multi-action lifting machinery that vertically lifts and horizontally moves heavy objects within a certain range. It is also called an overhead crane, overhead crane, or crane. It usually consists of a lifting arm, a lifting mechanism, a running mechanism, a slewing mechanism, and a control system.

[0003] When hoisting materials, cranes in the prior art all connect the hooks with the ropes on the materials to lift the materials. However, most of the hooks are open and there is no limit on the hooks. The materials are prone to shaking and are prone to unhooking when shaking violently. Therefore, we propose a hoisting device for cranes. Utility Model Content

[0004] The purpose of the utility model is to provide a lifting device for a crane to solve the problem that most of the hooks proposed in the above background technology are open and have no limit on the hooks, so the materials are easy to shake and are easy to come off the hook when shaking violently.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a lifting device for a crane, comprising a steel wire rope and a limiting mechanism, the limiting mechanism comprising a lifting part, the interior of the lifting part is provided with a slot, a rotating hole, a sliding groove and a limiting groove, the lifting part is fixedly installed with a mounting frame through a mounting groove, the mounting frame is connected to a strong spring through a telescopic groove, the strong spring is connected to a sliding frame through a push rod, and the lifting part is connected to a rotating handle through a visual cover plate.

[0006] As a preferred solution, the lifting part is fixedly installed on the lower end of the wire rope, the visual cover is fixedly installed on the front of the lifting part, the rotating handle is rotatably connected to the outer wall of the visual cover, and its inner end extends to the interior of the lifting part, and a push plate is fixedly installed on the inner end of the rotating handle.

[0007] As a preferred solution, the mounting groove is opened on the outer wall of the lifting component, one end of the mounting frame is fixedly installed inside the mounting groove, the telescopic groove is opened inside the mounting frame, and one end of the strong spring is fixedly installed inside the telescopic groove.

[0008] As a preferred solution, one end of the push rod is inserted into the inside of the strong spring, and a limit plate is fixedly installed on its outer wall. The limit plate is abutted against the other end of the strong spring, and the sliding frame is fixedly installed on the other end of the push rod, and the sliding frame is slidably connected in the sliding groove.

[0009] As a preferred solution, a hoisting mechanism is provided at the lower end of the limiting mechanism, and the hoisting mechanism includes a rotating frame, which is fixedly mounted on the lower end of the hoisting member, and a hook is rotatably connected to the outer wall of the rotating frame.

[0010] As a preferred solution, a slot is provided at one end of the hook away from the rotating frame, and its size is adapted to the limit slot. The size of the slot is adapted to the sliding frame. The outer wall of the hook is sleeved with an anti-slip sleeve, and a stabilizing protrusion is fixedly installed on the inner surface of the anti-slip sleeve.

[0011] The technical effects and advantages of this utility model are:

[0012] 1. The limit mechanism is set up, and the push plate can be driven to rotate by turning the handle. When the push plate contacts the upper end of the sliding frame, it will push the sliding frame to slide along the sliding groove. During this process, the push rod squeezes the strong spring, so that the sliding frame loses its limiting effect on the hook, and the material can be hoisted. After the hoisting is completed, just release the handle, and the sliding frame will reset itself to fix the hook. Compared with traditional cranes, this method is more convenient when hoisting materials and will not get unhooked.

[0013] 2. Through the provided hoisting mechanism, the hook can be rotated along the rotating frame to realize the opening and closing of the hook and the hoisting of the material. The positioning can be completed by cooperating with the sliding frame through the card slot. At the same time, the anti-slip sleeve can prevent the material from slipping on the hook. The stabilizing protrusion can further stabilize the material during hoisting and reduce the shaking amplitude of the material during hoisting. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is one of the partial structural diagrams of the limiting mechanism of the utility model;

[0016] Figure 3 This is the second partial structural diagram of the limiting mechanism of the present utility model;

[0017] Figure 4 This is the third partial structural diagram of the limiting mechanism of the present utility model;

[0018] Figure 5 For the utility model Figure 4 Exploded view of the middle structure;

[0019] Figure 6 It is a schematic diagram of the three-dimensional structure of the lifting mechanism of the utility model;

[0020] Figure 7 This is one of the partial structural diagrams of the lifting mechanism of the utility model;

[0021] Figure 8 This is the second partial structural diagram of the lifting mechanism of the present utility model.

[0022] In the figure: 1. Wire rope; 2. Limiting mechanism; 201. Lifting part; 202. Visual cover; 203. Slot; 204. Rotation hole; 205. Mounting slot; 206. Sliding slot; 207. Limiting slot; 208. Rotating handle; 209. Push plate; 210. Mounting frame; 211. Telescopic slot; 212. Strong spring; 213. Push rod; 214. Limiting plate; 215. Sliding frame; 3. Lifting mechanism; 301. Rotating frame; 302. Hook; 303. Slot; 304. Anti-slip sleeve; 305. Stabilizing protrusion. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1:

[0025] Please see the attached Figure 1 - Attachment Figure 5 A lifting device for a crane includes a steel wire rope 1 and a limiting mechanism 2. The limiting mechanism 2 includes a lifting part 201. A slot 203, a rotating hole 204, a sliding slot 206 and a limiting slot 207 are provided inside the lifting part 201. The lifting part 201 is fixedly installed with a mounting frame 210 through a mounting slot 205. The mounting frame 210 is connected to a strong spring 212 through a telescopic slot 211. The strong spring 212 is connected to a sliding frame 215 through a push rod 213. The lifting part 201 is connected to a rotating handle 208 through a visual cover 202. The lifting part 201 is fixedly installed at the lower end of the steel wire rope 1. The visual cover 202 is fixedly installed on the front of the lifting part 201. The rotating handle 208 is rotatably connected On the outer wall of the visualization cover 202, its inner end extends to the interior of the hanging part 201, and a push plate 209 is fixedly installed on the inner end of the rotating handle 208. The mounting groove 205 is opened on the outer wall of the hanging part 201, and one end of the mounting frame 210 is fixedly installed inside the mounting groove 205. The telescopic groove 211 is opened inside the mounting frame 210, and one end of the strong spring 212 is fixedly installed inside the telescopic groove 211. One end of the push rod 213 is inserted into the interior of the strong spring 212, and a limit plate 214 is fixedly installed on its outer wall. The limit plate 214 is against the other end of the strong spring 212, and the sliding frame 215 is fixedly installed on the other end of the push rod 213. The sliding frame 215 is slidably connected in the sliding groove 206.

[0026] The visual cover 202 allows the components inside the lifting part 201 to be seen, which is convenient for operation. A hole consistent with the rotating hole 204 is opened on the front side. The rotating handle 208 passes through the hole and is rotated and connected in the rotating hole 204. Cooperating with the push plate 209, the rotating handle 208 can be stably installed on the visual cover 202. When the limiting piece 214 is against the mounting frame 210, the left end of the sliding frame 215 is just against the left end of the sliding groove 206, and its right end is just withdrawn from the limiting groove 207.

[0027] Specifically, by rotating the handle 208, the push plate 209 can be driven to rotate, and after abutting against the upper end of the sliding frame 215, the sliding frame 215 is driven to slide along the sliding groove 206. The push rod 213 squeezes the strong spring 212, so that the sliding frame 215 loses its limiting effect on the hook 302, so that the material can be hoisted. After the hoisting is completed, just loosen the rotating handle 208, and the sliding frame 215 can reset itself to fix the hook 302. Compared with traditional cranes, it is more convenient to hoist materials.

[0028] Example 2:

[0029] Please see the attached Figure 1 and attached Figure 6 - Attachment Figure 8 , and on the basis of Example 1, it is further obtained that a lifting mechanism 3 is provided at the lower end of the limiting mechanism 2, and the lifting mechanism 3 includes a rotating frame 301, the rotating frame 301 is fixedly installed at the lower end of the lifting member 201, and a hook 302 is rotatably connected to its outer wall, and a slot 303 is provided at the end of the hook 302 away from the rotating frame 301, and its size is adapted to the limiting slot 207, and the size of the slot 303 is adapted to the sliding frame 215, and the outer wall of the hook 302 is sleeved with an anti-slip sleeve 304, and the inner surface of the anti-slip sleeve 304 is fixedly installed with a stabilizing protrusion 305.

[0030] The hook 302 itself is arc-shaped and comes into contact with the rope the most during hoisting, making it prone to wear. The anti-slip cover 304 can provide protection and is easy to replace. The stabilizing protrusion 305 can further limit the rope and reduce shaking.

[0031] Specifically, the hook 302 can be rotated along the rotating frame 301 to open and close the hook 302 to lift the material. The card slot 303 can cooperate with the sliding frame 215 to complete the limitation. At the same time, the anti-slip sleeve 304 can prevent the material from slipping on the hook 302. The stabilizing protrusion 305 can further stabilize the material during lifting and reduce the shaking amplitude of the material during lifting.

[0032] Working principle of the utility model: The utility model is a lifting device for cranes. When lifting materials with a crane, first, the rotating handle 208 is rotated to rotate the push plate 209, pushing the sliding frame 215 to slide along the sliding groove 206. The limiting piece 214 squeezes the strong spring 212 to compress it in the mounting frame 210. The right end of the sliding frame 215 is pulled out from the slot 303 of the hook 302, so that the hook 302 rotates along the rotating frame 301. Open, hang the material rope to be hoisted between the stable protrusions 305 of the hook 302, then insert the right end of the hook 302 into the inside of the limit groove 207, release the rotating handle 208, and make the sliding frame 215 slide along the sliding groove 206 under the action of the strong spring 212, and its right end is stuck in the slot 303 of the hook 302, and then the hoisting can be carried out. During maintenance, the anti-slip cover 304 can be removed from the hook 302 and replaced to protect the hook 302.

[0033] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hoisting device for a crane, comprising a wire rope (1) and a limiting mechanism (2), characterized in that: The limiting mechanism (2) comprises a hanging part (201), wherein a slot (203), a rotation hole (204), a sliding slot (206) and a limiting slot (207) are provided inside the hanging part (201), a mounting frame (210) is fixedly mounted on the hanging part (201) via a mounting slot (205), the mounting frame (210) is connected to a strong spring (212) via a telescopic slot (211), the strong spring (212) is connected to a sliding frame (215) via a push rod (213), and the hanging part (201) is connected to a rotating handle (208) via a visual cover plate (202).

2. A hoisting device for a crane according to claim 1, characterized in that: The hanging part (201) is fixedly mounted on the lower end of the steel wire rope (1); the visual cover plate (202) is fixedly mounted on the front of the hanging part (201); the rotating handle (208) is rotatably connected to the outer wall of the visual cover plate (202); the inner end of the rotating handle (208) extends to the interior of the hanging part (201); and a push plate (209) is fixedly mounted on the inner end of the rotating handle (208).

3. A crane hoisting device according to claim 2, characterized in that: The mounting groove (205) is provided on the outer wall of the hanging member (201), one end of the mounting frame (210) is fixedly installed inside the mounting groove (205), the telescopic groove (211) is provided inside the mounting frame (210), and one end of the strong spring (212) is fixedly installed inside the telescopic groove (211).

4. A hoisting device for a crane according to claim 3, characterized in that: One end of the push rod (213) is inserted into the interior of the strong spring (212), and a limit plate (214) is fixedly installed on the outer wall thereof, and the limit plate (214) abuts against the other end of the strong spring (212). The sliding frame (215) is fixedly installed on the other end of the push rod (213), and the sliding frame (215) is slidably connected in the sliding groove (206).

5. The hoisting device for a crane according to claim 1, characterized in that: A hoisting mechanism (3) is provided at the lower end of the limiting mechanism (2). The hoisting mechanism (3) comprises a rotating frame (301). The rotating frame (301) is fixedly mounted on the lower end of the hoisting member (201), and a hook (302) is rotatably connected to the outer wall of the rotating frame.

6. A hoisting device for a crane according to claim 5, characterized in that: A slot (303) is provided at one end of the hook (302) away from the rotating frame (301), and the size of the slot (303) is adapted to the limit slot (207). The size of the slot (303) is adapted to the sliding frame (215). The outer wall of the hook (302) is sleeved with an anti-slip sleeve (304), and the inner surface of the anti-slip sleeve (304) is fixedly mounted with a stabilizing protrusion (305).

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