CN110902553A

CN110902553A - Lifting hook for crane

Info

Publication number: CN110902553A
Application number: CN201911276777.XA
Authority: CN
Inventors: 周小军
Original assignee: Changde Dingcheng Rongtai Machinery Manufacturing Co ltd
Current assignee: Changde Dingcheng Rongtai Machinery Manufacturing Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-03-24

Abstract

The invention discloses a lifting hook for a crane, which belongs to the technical field of lifting hooks, wherein a heavy object is hung at the top of the inner side of the lifting hook, then the open loop position of the lifting hook is clamped through a hinged clamping piece, a driving motor is started by starting the crane to drive a take-up and pay-off roller to rotate, a rope is taken up around a drum driven by the take-up and pay-off roller so as to drive a tensile rope to move, a U-shaped fixed seat is driven by the tensile rope to move, the lifting hook is driven by the U-shaped fixed seat to move, and the buffering function is realized through an.

Description

Lifting hook for crane

Technical Field

The invention relates to a lifting hook, in particular to a lifting hook for a crane, and belongs to the technical field of lifting hooks.

Background

The lifting hook is divided into a single hook and a double hook according to the shape; the manufacturing method is divided into a forging lifting hook and a laminated lifting hook.

The single hook is simple to manufacture and convenient to use, but has poor stress condition, and is mostly used in working occasions with the lifting capacity of less than 80 tons; the double hooks with symmetrical stress are usually adopted when the lifting capacity is large, the laminated lifting hook is formed by riveting a plurality of steel plates which are cut and formed, the whole lifting hook cannot be damaged when individual plates crack, the safety is better, the dead weight is larger, the double hooks are mostly used on a crane for lifting the lifting capacity or the molten steel holding barrel, the lifting hook is often impacted in the operation process, and the double hooks need to be made of high-quality carbon steel with good toughness.

The hook classification is extremely broad, generally comprising: the shackle is applicable to factories, mines, petroleum, chemical engineering, ship wharf and the like. Ensure safety, quality factor of safety, static load reaches 3 times. The lifting capacity is from 5 tons to 150 tons.

The lifting hook in the prior art has no good buffering effect when a heavy object is lifted, and the lifting hook with the buffering function for the crane is designed to solve the problem that the problem is solved by easily breaking a rope.

Disclosure of Invention

The invention mainly aims to provide a lifting hook for a crane, a heavy object is hung at the top of the inner side of the lifting hook, then the open loop position of the lifting hook is clamped through a hinged clamping piece, a driving motor is started by starting the crane to drive a winding and unwinding roller to rotate, a winding drum rope is driven by the winding and unwinding roller to wind a rope, so that a stretching rope is driven to move, a U-shaped fixed seat is driven by the stretching rope to move, the lifting hook is driven by the U-shaped fixed seat to move, and the buffering function is realized through an adjusting spring.

The purpose of the invention can be achieved by adopting the following technical scheme:

the utility model provides a lifting hook for crane, includes the fixed cover body fixed with hoist sliding assembly and installs receive and release line cylinder of the inboard intermediate position department of the fixed cover body, receive and release line cylinder's outside winding has around a section of thick bamboo rope, just tensile rope is all installed at the both ends of winding a section of thick bamboo rope, the inboard bottom of tensile rope be equipped with the inboard gyro wheel of deciding of mutually supporting of tensile rope, decide the both ends of gyro wheel and pass through the bull stick and install the inboard top of U-shaped fixing base just can the inboard top of U-shaped fixing base is rotated.

Preferably, the bottom of the inner side of the U-shaped fixing seat is provided with a rotating disc which can rotate at the top of the inner side of the U-shaped fixing seat, and the bottom of the inner side of the rotating disc is provided with a compression cylinder which is integrally formed with the rotating disc.

Preferably, the inside of the compression cylinder is provided with a compression disc which can slide inside the compression cylinder, the top of the compression disc is provided with an adjusting spring, and the adjusting spring is positioned inside the compression cylinder and far away from the compression disc and is arranged on the top of the inside of the compression cylinder.

Preferably, the bottom of the compression disc penetrates through the compression cylinder and is provided with a lifting hook, an articulated clamping piece is hinged above the inner side of the lifting hook, and a torsion spring is arranged between the articulated clamping piece and the lifting hook.

Preferably, a rubber pad is arranged at the top of the inner side of the lifting hook.

Preferably, the driving motor is installed at the middle position of one side of the fixed cover body through a rotating shaft.

Preferably, fixing screws are installed on two sides of the top of the fixing cover body, and the fixing screws are fixed with the crane sliding assembly.

Preferably, the outside cover of driving motor is equipped with the motor cover, and the inboard of this motor cover is equipped with protection pad and shock attenuation cotton, the bearing is installed in the outside of compression section of thick bamboo, just the bearing is installed the inboard bottom of U-shaped fixing base.

The invention has the beneficial technical effects that:

according to the lifting hook for the crane, a heavy object is hung at the top of the inner side of the lifting hook, then the open loop position of the lifting hook is clamped through the hinged clamping piece, the crane is started, the driving motor is started to drive the winding and unwinding roller to rotate, the winding and unwinding roller drives the winding and unwinding rope to wind, so that the stretching rope is driven to move, the U-shaped fixing seat is driven to move through the stretching rope, the lifting hook is driven to move through the U-shaped fixing seat, and the buffering function is achieved through the adjusting spring.

Drawings

Fig. 1 is a schematic view of a preferred embodiment of a crane hook according to the invention;

fig. 2 is a schematic view of the construction of a preferred embodiment of a crane hook and its take-up drum assembly according to the present invention.

In the figure: 1-fixed cover body, 2-fixed screw rod, 3-take-up and pay-off roller, 4-drum winding rope, 5-tensile rope, 6-fixed roller, 7-driving motor, 8-U-shaped fixed seat, 9-rotating disc, 10-adjusting spring, 11-bearing, 12-compression disc, 13-lifting hook, 14-hinged fastener, 15-rubber pad and 16-compression drum.

Detailed Description

In order to make the technical solutions of the present invention more clear and definite for those skilled in the art, the present invention is further described in detail below with reference to the examples and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

As shown in fig. 1-2, the lifting hook for the crane provided in this embodiment includes a fixed cover 1 fixed to a crane sliding assembly and a wire winding and unwinding drum 3 installed at an intermediate position inside the fixed cover 1, a winding drum rope 4 is wound around an outer side of the wire winding and unwinding drum 3, tensile ropes 5 are installed at two end portions of the winding drum rope 4, a fixed roller 6 mutually matched with an inner side of the tensile rope 5 is installed at a bottom inside the tensile rope 5, and two ends of the fixed roller 6 are installed at a top inside a U-shaped fixed seat 8 through a rotating rod and can rotate at the top inside the U-shaped fixed seat 8.

Through hanging the heavy object at the inboard top of lifting hook 13, then give through articulated fastener 14 with the ring opening position of lifting hook 13 and block, through starting the hoist, start driving motor 7, drive take-up and pay-off cylinder 3 and rotate, take-up and pay-off cylinder 3 drives around a rope 4 and receive the rope through taking-up and pay-off cylinder, thereby drive tensile rope 5 motion, drive the motion of U-shaped fixing base 8 through tensile rope 5, thereby drive the motion of lifting hook 13 through U-shaped fixing base 8, the function of buffering has been realized through regulating spring 10.

In this embodiment, a rotating disc 9 which can rotate at the top of the inner side of the U-shaped fixed seat 8 is installed at the bottom of the inner side of the U-shaped fixed seat 8, and a compression cylinder 16 which is integrally formed with the rotating disc 9 is installed at the bottom of the inner side of the rotating disc 9.

In this embodiment, a compression plate 12 is installed inside the compression cylinder 16 and can slide inside the compression cylinder 16, and an adjustment spring 10 is installed on the top of the compression plate 12, wherein the adjustment spring 10 is located inside the compression cylinder 16 and is installed on the top of the inside of the compression cylinder 16 away from the compression plate 12.

In this embodiment, a hook 13 is mounted on the bottom of the compression plate 12 through the compression barrel 16, a hinged latch 14 is hinged above the inner side of the hook 13, and a torsion spring is mounted between the hinged latch 14 and the hook 13.

In this embodiment, a rubber pad 15 is provided on the top of the inside of the hook 13.

In this embodiment, a driving motor 7 is installed at a middle position of one side of the fixed cover 1 through a rotating shaft.

In this embodiment, the fixing screws 2 are installed on two sides of the top of the fixing cover 1, and the fixing screws 2 are fixed to the crane sliding assembly.

In this embodiment, the outside cover of driving motor 7 is equipped with the motor cover, and the inboard of this motor cover is equipped with protection pad and shock attenuation cotton, and bearing 11 is installed to the outside of compression section of thick bamboo 16, and bearing 11 installs the bottom at the inboard of U-shaped fixing base 8.

The above description is only for the purpose of illustrating the present invention and is not intended to limit the scope of the present invention, and any person skilled in the art can substitute or change the technical solution of the present invention and its conception within the scope of the present invention.

Claims

1. A lifting hook for a crane is characterized in that: include the fixed cover body (1) fixed with hoist sliding component and install receive and release line cylinder (3) of the inboard intermediate position department of the fixed cover body (1), the outside winding of receiving and releasing line cylinder (3) has around a section of thick bamboo rope (4), just tensile rope (5) are all installed around the both ends of a section of thick bamboo rope (4), the inboard bottom of tensile rope (5) be equipped with tensile rope (5) inboard fixed gyro wheel (6) of mutually supporting, the both ends of fixed gyro wheel (6) are passed through the bull stick and are installed the inboard top of U-shaped fixing base (8) and can the inboard top of U-shaped fixing base (8) is rotated.

2. A lifting hook for cranes, as claimed in claim 1, wherein: the bottom of the inner side of the U-shaped fixed seat (8) is provided with a rotating disc (9) which can rotate at the top of the inner side of the U-shaped fixed seat (8), and the bottom of the inner side of the rotating disc (9) is provided with a compression cylinder (16) which is integrally formed with the rotating disc (9).

3. A lifting hook for cranes, as claimed in claim 2, wherein: the inner side of the compression cylinder (16) is provided with a compression disc (12) which can slide on the inner side of the compression cylinder (16), the top of the compression disc (12) is provided with an adjusting spring (10), and the adjusting spring (10) is positioned on the inner side of the compression cylinder (16) and far away from the compression disc (12) and is arranged on the top of the inner side of the compression cylinder (16).

4. A crane hook as claimed in claim 3, wherein: the bottom of compression dish (12) runs through compression section of thick bamboo (16) installs lifting hook (13), just lifting hook (13) inboard top articulates there is articulated fastener (14), articulated fastener (14) with install torsion spring between lifting hook (13).

5. A lifting hook as claimed in claim 4, wherein: and a rubber pad (15) is arranged at the top of the inner side of the lifting hook (13).

6. A lifting hook for cranes, as claimed in claim 1, wherein: and a driving motor (7) is arranged in the middle of one side of the fixed cover body (1) through a rotating shaft.

7. A lifting hook for cranes, as claimed in claim 1, wherein: and fixing screw rods (2) are installed on two sides of the top of the fixing cover body (1), and the fixing screw rods (2) are fixed with the crane sliding assembly.

8. A lifting hook for cranes, as claimed in claim 1, wherein: the outside cover of driving motor (7) is equipped with the motor cover, and the inboard of this motor cover is equipped with protection pad and shock attenuation cotton, bearing (11) are installed in the outside of compression section of thick bamboo (16), just bearing (11) are installed the inboard bottom of U-shaped fixing base (8).