CN115947225A

CN115947225A - Straight arm type aerial work vehicle winch hook mechanism

Info

Publication number: CN115947225A
Application number: CN202211693866.6A
Authority: CN
Inventors: 韩华
Original assignee: Qingdao Haikin Automobile Co ltd
Current assignee: Qingdao Haikin Automobile Co ltd
Priority date: 2022-12-28
Filing date: 2022-12-28
Publication date: 2023-04-11

Abstract

The invention discloses a straight arm type overhead working truck winch hook mechanism which comprises a top plate and a shell, wherein a movable plate is connected to the interior of the shell in a sliding mode, a hook main body is arranged at the lower end of the movable plate, a buffer mechanism used for buffering the movable plate is arranged in the shell, a guide rod is fixedly connected to the upper end of the shell, the guide rod is made of steel, a conductor is arranged in the guide rod, the guide rod is connected with the lower end of the top plate through a universal joint, two fixed rods which are symmetrically arranged are fixedly connected to the lower end of the top plate, and a transverse plate is fixedly connected to the lower ends of the fixed rods. The lifting hook mechanism is reasonable in structure, the guide rod can reduce the swing amplitude until the swing amplitude is gradually stable under the action of a magnetic field according to the electromagnetic damping principle by arranging the anti-swing mechanism, and compared with the traditional lifting hook mechanism, the lifting hook mechanism can effectively prevent materials from swinging due to inertia in the lifting process, prevents the materials from falling, and greatly improves the safety performance of the device.

Description

Straight arm type aerial work vehicle winch hook mechanism

Technical Field

The invention relates to the technical field of hoisting hooks, in particular to a hoisting hook mechanism of a straight-arm type overhead working truck.

Background

The hoisting hook is the most common hanger in hoisting machinery, and the hook is often hung on a steel wire rope of a hoisting mechanism by means of a pulley block and other parts, and most of the hoisting hooks are used in general high-altitude operation.

In the prior art, the traditional winch lifting hook has a large defect, and if most of the traditional winch lifting hooks are pulled by steel wire ropes, when some heavy objects are lifted and moved, the lifting hook is shaken due to inertia, so that lifted materials swing, the materials are easy to fall off and other dangerous conditions occur, and therefore the invention provides the straight-arm type overhead working truck winch lifting hook mechanism to solve the problems.

Disclosure of Invention

The invention aims to solve the defects in the prior art, and provides a straight-arm type overhead working truck winch hook mechanism.

In order to achieve the purpose, the invention adopts the following technical scheme:

the hoisting hook mechanism comprises a top plate and a shell, wherein a movable plate is slidably connected inside the shell, a hook body is arranged at the lower end of the movable plate, a buffer mechanism used for buffering the movable plate is arranged in the shell, a guide rod is fixedly connected to the upper end of the shell and made of steel, a conductor is arranged in the guide rod, the guide rod is connected with the lower end of the top plate through a universal joint, two symmetrically-arranged fixing rods are fixedly connected to the lower end of the top plate, a transverse plate is fixedly connected to the lower end of each fixing rod, a through groove is formed in the transverse plate, the guide rod penetrates through the through groove, an anti-swing mechanism used for preventing the hook body from swinging is arranged on the transverse plate and comprises a magnetic ring which is rotatably connected to the upper end of the transverse plate, the magnetic ring and the through groove are coaxially designed, the magnetic ring is composed of a plurality of first magnetic blocks and a plurality of second magnetic blocks, the first magnetic blocks and the second magnetic blocks are arranged in a staggered mode, and a rotating mechanism used for rotating the magnetic ring is arranged on the top plate.

Preferably, the buffer mechanism comprises two dampers which are fixedly connected to the upper end of the moving plate and symmetrically arranged, the upper ends of the dampers are fixedly connected to the inner top of the shell, and the upper end of the moving plate is elastically connected with the inner top of the shell through two symmetrically arranged springs.

Preferably, the rotating mechanism comprises a motor fixedly connected to the upper end of the top plate, a driving rod is fixedly connected to the tail end of an output shaft of the motor, and a gear is fixedly connected to the driving rod.

Preferably, a gear ring is fixedly sleeved on the magnetic ring and is meshed with the gear.

Preferably, two symmetrically arranged limiting rods are fixedly connected between the inner bottom and the inner top of the shell, and both the two limiting rods penetrate through the movable plate and are in sliding connection with the movable plate.

Preferably, the lower end of the shell is provided with a through hole, and the through hole is matched with the hook main body.

Compared with the prior art, the invention has the beneficial effects that:

1. through the arrangement of the anti-swing mechanism, when the hook main body moves when a suspended heavy object moves, the heavy object can drive the hook main body to swing under the action of inertia, at the moment, the swing of the hook main body drives the guide rod to swing, the swing of the guide rod drives the conductor inside the guide rod to swing, a magnetic induction line is cut in the magnetic ring, so that the conductor generates current, the conductor conveys the current to a controller of the motor, the motor is started to drive the driving rod and the gear to rotate, so as to drive the gear ring meshed with the driving rod to rotate, and drive the magnetic ring to rotate.

2. Through setting up buffer gear, when the lifting hook main part is when the hoist and mount the heavy object, under the effect of attenuator and spring, can carry out effectual buffering to the lifting hook main part, can effectually avoid the lifting hook main part because of lacking the buffering impaired, stability when also can improving the heavy object hoist and mount simultaneously avoids dangerous the emergence.

Drawings

FIG. 1 is a perspective view of a straight arm type aerial work vehicle hoisting hook mechanism provided by the invention;

fig. 2 is a bottom view of a hoisting hook mechanism of a straight-arm type aerial work platform provided by the invention;

FIG. 3 is a cross-sectional view of a straight arm type aerial work vehicle hoisting hook mechanism provided by the invention;

FIG. 4 is a sectional front view of a straight arm type aerial work platform hoist hook mechanism according to the present invention;

fig. 5 is a schematic structural view of a magnetic ring of the hoisting hook mechanism of the straight-arm type overhead working truck according to the present invention.

In the figure: the lifting hook comprises a shell 1, a lifting hook main body 2, a transverse plate 3, a fixing rod 4, a gear ring 5, a guide rod 6, a magnetic ring 7, a first magnetic block 701, a second magnetic block 702, a motor 8, a top plate 9, a gear 10, a driving rod 11, a through hole 12, a universal joint 13, a through groove 14, a limiting rod 15, a moving plate 16, a damper 17 and a spring 18.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein, but rather should be construed as broadly as the present invention is capable of modification in various respects, all without departing from the spirit and scope of the present invention.

Referring to fig. 1-5, a straight arm type overhead working truck hoisting hook mechanism comprises a top plate 9 and a casing 1, a movable plate 16 is slidably connected inside the casing 1, a hook main body 2 is arranged at the lower end of the movable plate 16, a buffer mechanism for buffering the movable plate 16 is arranged in the casing 1, the buffer mechanism comprises two symmetrically arranged dampers 17 fixedly connected to the upper end of the movable plate 16, the upper ends of the two dampers 17 are fixedly connected to the inner top of the casing 1, the upper end of the movable plate 16 is elastically connected to the inner top of the casing 1 through two symmetrically arranged springs 18, two symmetrically arranged limiting rods 15 are fixedly connected between the inner bottom and the inner top of the casing 1 together, the two limiting rods 15 penetrate through the movable plate 16 and are slidably connected with the movable plate 16, a through hole 12 is formed in the lower end of the casing 1, and the through hole 12 is matched with the hook main body 2.

The upper end of the shell 1 is fixedly connected with a guide rod 6, the guide rod 6 is made of steel, a conductor is arranged in the guide rod 6, the guide rod 6 is connected with the lower end of a top plate 9 through a universal joint 13, the lower end of the top plate 9 is fixedly connected with two symmetrically arranged fixing rods 4, the lower ends of the fixing rods 4 are fixedly connected with a transverse plate 3, a through groove 14 is formed in the transverse plate 3, the guide rod 6 penetrates through the through groove 14, an anti-swing mechanism used for preventing a hook main body 2 from swinging is arranged on the transverse plate 3 and comprises a magnetic ring 7 rotatably connected to the upper end of the transverse plate 3, the magnetic ring 7 and the through groove 14 are coaxially designed, the magnetic ring 7 is composed of a plurality of first magnetic blocks 701 and second magnetic blocks 702, the plurality of first magnetic blocks 701 and the plurality of second magnetic blocks are arranged in a staggered mode, the magnetic ring 7 forms a magnetic field around the guide rod 6, the guide rod 6 can reduce the swinging amplitude under the action of the magnetic field until the magnetic field is gradually stable effect according to the electromagnetic damping principle, when the conductor moves in the magnetic field, the direction of induced current can enable the conductor to always block the motion of the conductor, and accordingly electromagnetic damping can be generated.

Be provided with on roof 9 and be used for carrying out pivoted slewing mechanism to magnetic ring 7, slewing mechanism includes motor 8 of fixed connection in roof 9 upper end, motor 8's the terminal fixedly connected with actuating lever 11 of output shaft, fixedly connected with gear 10 on the actuating lever 11, the fixed ring that has connect on magnetic ring 7 has ring gear 5, ring gear 5 and gear 10 meshing, when lifting hook main part 2 is when the hoisting load heavy object, under the effect of attenuator 17 and spring 18, can carry out effectual buffering to lifting hook main part 2, can effectually avoid lifting hook main part 2 because of lacking the buffering impaired, stability when also can improve the heavy object hoisting simultaneously, avoid dangerous the emergence.

When the lifting hook is used, when a hanging weight moves, the weight can drive the hanging hook main body 2 to swing under the action of inertia, at the moment, the swinging of the hanging hook main body 2 drives the guide rod 6 to swing, the swinging of the guide rod 6 drives the conductor in the guide rod 6 to swing, a cutting magnetic induction line is made in the magnetic ring 7, so that the conductor generates current, the conductor transmits the current to a controller of the motor 8, the motor 8 is started to drive the driving rod 11 and the gear 10 to rotate, so as to drive the gear ring 5 meshed with the driving rod to rotate, and drive the magnetic ring 7 to rotate, because the magnetic ring 7 is formed by combining a plurality of first magnetic blocks 701 and a plurality of second magnetic blocks 702, and the first magnetic blocks 701 and the second magnetic blocks 702 are sequentially and alternately arranged, the magnetic ring 7 forms a magnetic field around the guide rod 6 when rotating, according to the electromagnetic damping principle, the swinging amplitude of the guide rod 6 can be reduced until the magnetic ring is gradually stabilized under the action of the magnetic field, compared with the traditional lifting hook mechanism, the swinging of materials in the lifting hook mechanism can be effectively prevented from swinging due to inertia in the lifting process of swinging of the guide rod 6, and the swinging effect can be improved;

when lifting hook main part 2 carries the heavy object in the hanging, under the effect of attenuator 17 and spring 18, can carry out effectual buffering to lifting hook main part 2, can effectually avoid lifting hook main part 2 because of lacking the buffering impaired, stability when also can improving the heavy object carry simultaneously avoids dangerous the emergence.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The hoisting hook mechanism of the straight-arm type overhead working truck comprises a top plate (9) and a shell (1), and is characterized in that a movable plate (16) is connected to the inside of the shell (1) in a sliding manner, a hook main body (2) is arranged at the lower end of the movable plate (16), a buffer mechanism used for buffering the movable plate (16) is arranged in the shell (1), a guide rod (6) is fixedly connected to the upper end of the shell (1), the guide rod (6) is made of steel, a conductor is arranged in the guide rod (6), the guide rod (6) is connected with the lower end of the top plate (9) through a universal joint (13), two symmetrically-arranged fixing rods (4) are fixedly connected to the lower end of the top plate (9), a transverse plate (3) is fixedly connected to the lower end of the fixing rods (4), a through groove (14) is formed in the transverse plate (3), the guide rod (6) penetrates through the through groove (14), an anti-swing mechanism used for preventing the hook main body (2) from swinging is arranged on the transverse plate (3), the anti-swing mechanism comprises a plurality of magnetic blocks (701) which are arranged between a plurality of second magnetic blocks (701) and a plurality of magnetic blocks (701) which are arranged in a staggered manner, and a rotating mechanism used for rotating the magnetic ring (7) is arranged on the top plate (9).

2. The hoisting hook mechanism of the straight arm type overhead working truck as claimed in claim 1, wherein the buffering mechanism comprises two symmetrically arranged dampers (17) fixedly connected to the upper end of the moving plate (16), the upper ends of the two dampers (17) are fixedly connected to the inner top of the housing (1), and the upper end of the moving plate (16) is elastically connected to the inner top of the housing (1) through two symmetrically arranged springs (18).

3. The hoisting hook mechanism of the straight arm type overhead working truck as claimed in claim 2, wherein the rotating mechanism comprises a motor (8) fixedly connected to the upper end of the top plate (9), the end of the output shaft of the motor (8) is fixedly connected with a driving rod (11), and a gear (10) is fixedly connected to the driving rod (11).

4. The hoisting hook mechanism of the straight arm type overhead working truck as claimed in claim 3, wherein the magnetic ring (7) is fixedly sleeved with a gear ring (5), and the gear ring (5) is meshed with the gear (10).

5. The hoisting hook mechanism of the straight-arm type overhead working truck as claimed in claim 4, wherein two symmetrically arranged limiting rods (15) are fixedly connected between the inner bottom and the inner top of the housing (1), and both limiting rods (15) pass through the movable plate (16) and are slidably connected with the movable plate.

6. The hoisting hook mechanism of straight arm type overhead working truck as claimed in claim 5, wherein the lower end of the housing (1) is provided with a through hole (12), and the through hole (12) is matched with the hook body (2).