CN113003416B

CN113003416B - Rotating device of lifting hook

Info

Publication number: CN113003416B
Application number: CN201911316858.8A
Authority: CN
Inventors: 葛中原; 方晶
Original assignee: Jiangsu Goldwind Science and Technology Co Ltd
Current assignee: Jiangsu Goldwind Science and Technology Co Ltd
Priority date: 2019-12-19
Filing date: 2019-12-19
Publication date: 2022-07-15
Anticipated expiration: 2039-12-19
Also published as: CN113003416A

Abstract

The invention provides a rotating device of a lifting hook, which comprises a rack, at least two arm parts and a driving device, wherein the center of the rack is provided with a through hole for a middle shaft of the lifting hook to pass through; the first end of each arm part is rotatably connected to the rack, the second end of each arm part is provided with a rotating component, and the intermediate shaft can rotate around the axis of the intermediate shaft through the driving of the rotating component of each arm part; the driving device is hinged between each arm and the rack and used for driving each arm to rotate relative to the rack, and the middle shaft of the lifting hook can be driven to rotate under the action of the rotating assembly, so that the safety of the lifting hook is improved. On the other hand, the rotation efficiency of the lifting hook is also improved, and the trouble that the lifting hook is rotated manually by using a guy rope is avoided.

Description

Rotating device of lifting hook

Technical Field

The invention belongs to the field of hoisting equipment, and particularly relates to a rotating device of a lifting hook of a crane.

Background

When the wind generating set is hoisted, a crane is needed for hoisting. In the hoisting process of the wind generating set, the large parts are usually connected through flange face bolts, and the lifting hook is adjusted to rotate to a preset angle by manually pulling the cable rope, so that the purposes of fitting and butting the flange faces of the two parts are achieved.

However, with the increasing volume of the wind generating set, the difficulty of manually pulling the cable rope to rotate is increased more and more in the actual construction process, and certain potential safety hazards exist. Moreover, accurate counterpoint can not be realized to the guy rope to labor efficiency has been reduced. Besides, once the lifting hook is locked, the angle of the lifting hook cannot be adjusted manually by pulling the guy cable, so that the installation time of the wind generating set is prolonged.

Disclosure of Invention

An object of the present invention is to provide a rotation device of a hook for driving the hook to rotate, thereby improving rotation efficiency.

In one aspect of the invention, a rotating device of a lifting hook is provided, which comprises a frame, at least two arm parts and a driving device, wherein a through hole for a middle shaft of the lifting hook to pass through is formed in the center of the frame; the first end of each arm part is rotatably connected to the rack, the second end of each arm part is provided with a rotating assembly, and the intermediate shaft can rotate around the axis of the intermediate shaft through the driving of the rotating assembly of each arm part; the driving device is hinged between each arm and the rack and used for driving each arm to rotate relative to the rack, and the middle shaft of the lifting hook can be driven to rotate under the action of the rotating assembly, so that the safety of the lifting hook is improved. On the other hand, the rotating efficiency of the lifting hook is improved, and the trouble that the lifting hook is rotated by manually using the guy rope is avoided.

Specifically, the rotating assembly comprises a rotating unit and a power source for driving the rotating unit to rotate, when the rotating unit is attached to the outer peripheral surface of the intermediate shaft to rotate the intermediate shaft, the axis of the rotating unit is parallel to the axis of the intermediate shaft, and the intermediate shaft is driven to rotate by the rotating unit.

Furthermore, each arm portion further comprises a holding claw body fixed to the second end, a base is arranged on one side, facing the center line of the through hole, of the holding claw body, the rotating unit is rotatably arranged on the base, and the power source is fixed to the base.

Preferably, the rotating unit is plural and the plural rotating units are coaxially arranged.

As another exemplary embodiment, the rotating units are at least two groups of which axes are parallel to each other, and each group of the rotating units includes a plurality of rotating units coaxially arranged.

Preferably, the rack further comprises a limit sleeve fixed on the rack, and the intermediate shaft can penetrate through the limit sleeve.

Further preferably, the rack further comprises a box body arranged around the through hole and a limiting sleeve slidably arranged in the box body, and the intermediate shaft can penetrate through the limiting sleeve.

As another exemplary embodiment of the present invention, at least two of the arm portions are disposed at equiangular intervals around the intermediate shaft.

Preferably, the rotating unit is a roller; the driving device is a hydraulic cylinder, an air cylinder or a screw rod.

As another exemplary embodiment of the present invention, the rotation unit is a first gear, and a second gear engaged with the first gear is provided on an outer circumferential surface of the intermediate shaft.

Specifically, the rotating device of the hook further comprises a sensor and a controller, wherein the sensor is used for sensing the rotating angle of the intermediate shaft and sending a corresponding electric signal to the controller, and the controller controls the power source to rotate based on the received electric signal.

The rotating device of the lifting hook provided by the invention at least has the following beneficial effects: the rotary device of lifting hook includes frame, two at least arms and drive arrangement, and under drive arrangement's effect, the arm can move towards the jackshaft to make the peripheral surface laminating of rotating assembly and jackshaft, the rotating assembly is rotatory and the jackshaft of drive lifting hook is rotatory, and the rotary device simple structure of this lifting hook has improved the security of lifting hook. On the other hand, the rotation efficiency of the lifting hook is also improved, and the trouble that the lifting hook is rotated manually by using a guy rope is avoided.

Drawings

The above and/or other objects and advantages of the present invention will become more apparent from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

fig. 1 is a structural view of a rotating device of a hook according to an exemplary embodiment of the present invention.

Fig. 2 is a structural view of the arm portion in fig. 1.

Fig. 3 is a structural view of the holding claw body in fig. 1.

Fig. 4 is a structural view of the spacing sleeve in fig. 1 fixed in a box body.

Description of reference numerals:

1. a drive device; 2. A hinged seat;

3. an integrated control cabinet; 4. A frame;

5. a box body; 6. An arm portion;

7. a limiting sleeve; 9. A hook;

11. a power source; 13. A holding claw body;

14. a rotating unit; 61. A first recess;

62. a first pin hole; 63. A first pin shaft;

64. a second recess; 65. A second pin shaft;

41. a convex portion; 42. A recess.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

Referring to fig. 1, the rotating device of the hook comprises a frame 4, at least two arms 6 and a driving device 1, wherein a through hole for the middle shaft of the hook to pass through is arranged in the center of the frame 4. Each arm 6 is rotatably connected at a first end to the frame 4 and at a second end provided with a rotating assembly, the intermediate shaft being rotatable about its axis by the rotating assembly of each arm 6. The driving device 1 is hinged between each arm 6 and the rack 4 and used for driving each arm 6 to rotate relative to the rack 4, and the middle shaft of the lifting hook can be driven to rotate under the action of the rotating assembly, so that the structure is simple, and the safety of the lifting hook is improved. On the other hand, the rotation efficiency of the lifting hook is also improved, and the trouble that the lifting hook is rotated manually by using a guy rope is avoided.

The frame 4 may be in the form of a beam or a plate-shaped member, and the present invention will be described by taking the frame 4 in the form of a beam as an example. The rack 4 provided in this embodiment is in the form of a beam, wherein the rack 4 may include an integral beam or may include a plurality of beams and radially arranged from the center, and the rack 4 formed by two beams is taken as an example in this embodiment for description.

As another embodiment, the upper surface of the frame 4 is formed with a hinge base 2 protruding outward, the hinge base 2 is provided with a hinge hole, and one end of the driving device 1 is provided with another hinge hole matching with the hinge hole, and the driving device 1 and the frame 4 can be connected by a pin shaft simultaneously passing through the two hinge holes. Preferably, the driving device 1 may be a hydraulic cylinder, an air cylinder or a screw.

With continued reference to fig. 1, at least two arm portions 6 are disposed at equiangular intervals about the intermediate axis. In the case of two arm portions 6, the angular interval between the adjacent two arm portions 6 is 180 °, and similarly, in the case of 3 arm portions 6, the angular interval between the adjacent two arm portions 6 is 120 °, and in the case of 4 arm portions 6, the angular interval between the adjacent two arm portions 6 is 90 °. For the sake of understanding, the present invention has been described by taking as an example only a rotating device of a hook having two arms 6. Since each arm portion 6 has the same structure and similar connection manner, the arm portion 6 on the left side in fig. 1 will be selected as an example for explanation in the present embodiment.

Referring to fig. 1 and 2, the left arm 6 is pivotally connected to the frame 4 by a first pin 63, and the second end of the arm 6 is located below the frame 4 and the first end is located above the frame 4.

The left end of the frame 4 is provided with a connecting portion for connecting with the arm portion 6, wherein the right side wall of the arm portion 6 is provided with a first concave hole 61 formed by inward concave of the side wall, and a first pin hole 62 for a first pin 63 to pass through is arranged on the hole wall of the first concave hole 61. At least a part of the left end of the frame 4 may be inserted into the first concave hole 61, and the left end of the frame 4 may be provided with a second pin hole matching the first pin 63, and the arm 6 may be coupled to the frame 4 by inserting the first pin 63 into the second pin hole and the first pin hole 62.

Specifically, the connecting portion at the left end of the frame 4 includes a pair of recesses 42 and a protrusion 41 disposed between the two recesses 42, and when the protrusion 41 is inserted into the first concave hole 61 of the arm 6, two hole walls of the first concave hole 61 are respectively accommodated in the two recesses 42, and then the first pin 63 is inserted into the first pin hole 62 and the second pin hole.

In the present embodiment, the dimension of the arm portion 6 in the extending direction of the first pin hole 62 is smaller than the dimension of the beam body in the extending direction of the first pin hole 62, and as another alternative embodiment of the present embodiment, the dimension of the arm portion 6 in the extending direction of the first pin hole 62 is larger than the dimension of the beam body in the extending direction of the first pin hole 62, and the dimension of the first recessed hole 61 in the extending direction of the first pin hole 62 may be larger than or equal to the dimension of the beam body in the extending direction of the first pin hole 62, so that the entire end portion of the beam body can be inserted into the first recessed hole 61.

The arm portion 6 may also be provided with a second pin 65 for hinging with the driving device 1, and the second pin 65 may be located above the first pin 63 or below the first pin 63 as required. Only the embodiment in which the second pins 65 are located above the first pins 63 is shown in this embodiment.

Specifically, a second concave hole 64 is formed in the arm portion 6, the second concave hole 64 is located above the first concave hole 61, a second pin 65 is arranged in the second concave hole 64, the extending direction of the second pin 65 is approximately parallel to the extending direction of the first pin 63, one end of the driving device 1 is hinged to the upper portion of the left end of the rack 4, a pin hole matched with the second pin 65 is formed in the other end of the driving device 1, and the other end of the driving device 1 extends into the second concave hole 64 and is matched with the second pin 65, so that the driving device 1 can be hinged to the arm portion 6. As another alternative embodiment of the present embodiment, the second pin 65 may be formed on a convex portion (not shown) formed by protruding the side surface of the arm portion 6.

A holding claw body 13 is fixed at the second end of the arm part 6, a base 12 is arranged on one side of the holding claw body 13 facing the center line of the through hole, a rotating unit 14 is rotatably arranged on the base 12, and the power source 11 is fixed on the base 12 and is used for driving the power source 11 of the rotating unit 14 to rotate. The power source 11 may employ a motor. Specifically, a mounting hole for the pivot shaft to pass through is formed in the base 12, the pivot shaft is fixed to the rotating unit 14, the motor is fixed to the base 12, and an output shaft of the motor is fixedly connected to the pivot shaft of the rotating unit 14, so that the rotating unit 14 can be driven to rotate by driving the pivot shaft to rotate through the motor. When the intermediate shaft is rotated by the rotation unit 14 being fitted to the outer peripheral surface of the intermediate shaft, the axis of the rotation unit 14 is parallel to the axis of the intermediate shaft. Preferably, the rotating unit 14 is a roller. Further preferably, the roller may be a roller formed of a plastic or rubber material, and preferably, the rotating unit 14 may be formed of a nylon material to increase a friction coefficient between the hook 9 and the roller. Further, the rollers formed of nylon material can prevent the outer peripheral surfaces of the hooks 9 from being scratched.

Referring to fig. 1-3, preferably, the rotating unit 14 is multiple, and the multiple rotating units 14 are coaxially disposed, in this embodiment, only 3 coaxially disposed rotating units 14 are shown, but not limited thereto. As another exemplary embodiment, the rotating units 14 are at least two groups whose axes are parallel to each other, and each group of the rotating units 14 includes a plurality of rotating units 14 (not shown) coaxially arranged. The greater the number of the turning units 14, the greater the kinetic friction force that can be provided, and thus the easier it is to drive the hook 9 to rotate.

As another exemplary embodiment of the present invention, the rotation unit 14 is a first gear, and a second gear (not shown) engaged with the first gear is provided on an outer circumferential surface of the intermediate shaft. Specifically, the first gear may be driven by the power source 11 to rotate the second gear, and the second gear may be sleeved on the outer peripheral surface of the intermediate shaft of the hook 9 to rotate the hook 9.

The turning units 14 on different arm sections 6 may have the same direction of rotation to provide the same directional force to the intermediate shaft in common to drive the intermediate shaft in rotation.

Referring to fig. 1 and 4, preferably, the frame 4 may further include a limit sleeve 7 fixed on the frame 4, and the intermediate shaft can pass through the limit sleeve 7 to radially limit the hook 9, so as to prevent the hook 9 from swinging during rotation and accurately control the rotation of the hook 9. The bottom end of the limiting sleeve 7 can be fixed at the top of the frame 4, the limiting sleeve 7 can be provided with a cylindrical cavity for the middle shaft to pass through, and the central axis of the cylindrical cavity coincides with the central axis of the middle shaft. Further, the frame 4 further comprises a box body 5 arranged around the through hole, the bottom end or the side wall of the box body 5 is fixed on the beam body, the limiting sleeve 7 can be nested in the inner cavity of the box body 5, and the outer peripheral surface of the box body 5 can be fixed on the inner cavity wall of the box body 5.

Further preferably, in order to improve the versatility of the rotating device of the hook, the frame 4 further comprises a box 5 disposed around the through hole and a limit sleeve 7 slidably disposed in the box 5, wherein the middle shaft can pass through the limit sleeve 7. The limiting sleeve 7 is nested in the box body 5, the periphery of the limiting sleeve 7 abuts against the inner wall of the box body 5 respectively, and therefore the limiting sleeve 7 can be prevented from moving radially, and the central axis of the cylindrical cavity and the central axis of the intermediate shaft are kept coincident constantly. The rotary device of the lifting hook can comprise cylindrical cavities with different inner diameters and a plurality of limiting sleeves 7 which are respectively abutted to the outer peripheries of the cylindrical cavities on the inner side walls of the box body 5, so that intermediate shafts with different diameters can be matched, and the rotary device of the lifting hook has good universality.

Referring to fig. 1, a box 5 has a vertically penetrating structure, and a pair of beams are respectively fixed to a pair of outer walls of the box 5. In this embodiment, a through hole provided in the middle of the frame 4 for passing the intermediate shaft is provided in the case 5. Specifically, the right end of the beam on the left side of the box 5 is fixed to the left side wall of the box 5, and the left end of the beam on the right side of the box 5 is fixed to the right side wall of the box 5.

Preferably, the case 5 in this embodiment is a rectangular case, a cylindrical case, a triangular prism case, or the like.

Specifically, the rotating device of the lifting hook further comprises a sensor and a controller, wherein the sensor is used for sensing the rotating angle of the intermediate shaft and sending a corresponding electric signal to the controller, and the controller is used for controlling the motor to rotate based on the received electric signal. In this embodiment, further, an integrated control cabinet 3 is further disposed on the frame 4, and an electric control device or a hydraulic device is disposed in the integrated control cabinet 3, so as to realize remote control of the lifting hook. Preferably, the sensor is an angle sensor.

Specifically, the rotating device of the lifting hook may further include a controller and an angle sensor, the angle sensor may be configured to monitor a rotation angle of the rotating unit 14, and the controller may be electrically connected to the motor and the angle sensor, respectively, to receive an angle signal of the angle sensor and control start and stop of the motor and a rotation direction of the motor, wherein the controller may be located in the integrated electric control cabinet 3.

According to the rotating device of the lifting hook, in the lifting process of the lifting hook, when the lifting hook needs to lift, the remote controller is used for controlling the driving device 1 to extend, so that the second end of the arm part 6 moves towards the lifting hook until the rotating unit 14 is attached to the outer peripheral surface of the intermediate shaft, and the driving device 1 stops extending. At this time, the remote controller can be used to control the power source 11 to rotate, the hook rotates around the central line of the intermediate shaft to a predetermined angle under the circumferential pushing of the rotating unit 14, the angle sensor sends an angle signal to the controller, and the controller controls the power source 11 to stop rotating. At this time, the driving device 1 may be contracted to move the second end of the arm portion 6 in a direction away from the center line of the through hole to move the rotating unit 14 away from the intermediate shaft of the hook 9, thereby restoring the hook to the free state.

Compared with the mode of rotating the lifting hook in the prior art by pulling the cable rope by manpower, the rotating device of the lifting hook provided by the invention can accurately control the rotating angle of the lifting hook, reduce the manpower and improve the labor efficiency, thereby reducing the installation cost of the wind generating set. Except this, the rotary device of this lifting hook simple structure, the production preparation of being convenient for, the facilitate promotion has good economic benefits.

The described features, structures, or characteristics of the invention may be combined in any suitable manner in one or more embodiments. In the above description, numerous specific details are provided to give a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention.

Claims

1. The utility model provides a rotary device of lifting hook which characterized in that is applicable to wind generating set hoist and mount, rotary device of lifting hook includes:

a through hole for the middle shaft of the lifting hook to pass through is formed in the center of the rack (4);

at least two arms (6), wherein a first end of each arm (6) is rotatably connected to the frame (4), a second end of each arm is provided with a rotating component, and the rotating component can move towards the middle shaft or move away from the middle shaft under the driving of the arms (6), and the middle shaft can rotate around the axis of the middle shaft under the driving of the rotating component of each arm (6);

the driving device (1) is hinged between each arm (6) and the frame (4) and is used for driving each arm (6) to rotate relative to the frame (4).

2. A rotation device of a lifting hook as claimed in claim 1, wherein the rotation assembly comprises a rotation unit (14) and a power source (11) for driving the rotation unit (14) to rotate, and when the rotation unit (14) is engaged with the outer circumferential surface of the intermediate shaft to rotate the intermediate shaft, the axis of the rotation unit (14) is parallel to the axis of the intermediate shaft.

3. A rotation device of a lifting hook as claimed in claim 2, characterized in that each arm part (6) further comprises a clasping body (13) fixed to the second end, a base (12) is provided on one side of the clasping body (13) facing the center line of the through hole, the rotation unit (14) is rotatably provided on the base (12), and the power source (11) is fixed to the base (12).

4. A rotation device of a lifting hook as claimed in claim 3, characterized in that the rotation unit (14) is plural and plural rotation units (14) are coaxially arranged.

5. A rotation device of a lifting hook as claimed in claim 3, characterized in that the turning units (14) are at least two groups with their axes parallel to each other, each group of turning units (14) comprising a plurality of turning units (14) arranged coaxially.

6. A rotation device of a lifting hook as claimed in claim 1, characterized in that the frame (4) further comprises a limit socket (7) fixed to the frame (4), the intermediate shaft being able to pass through the limit socket (7).

7. A rotation device of a lifting hook as claimed in claim 1, characterized in that the frame (4) further comprises a box body (5) disposed around the through hole and a limit sleeve (7) slidably disposed in the box body (5), the intermediate shaft being capable of passing through the limit sleeve (7).

8. A hook rotation device as claimed in any one of claims 1 to 7, characterized in that at least two of the arm portions (6) are equiangularly spaced around the central axis.

9. A rotating device of a lifting hook as claimed in any one of the claims 2-5, characterized in that the turning unit (14) is a roller or a gear; the driving device (1) is a hydraulic cylinder, an air cylinder or a screw rod.

10. A rotating device of a lifting hook as claimed in claim 2, characterized in that the rotating device of a lifting hook further comprises a sensor for sensing the rotation angle of the intermediate shaft and sending a corresponding electrical signal to the controller, and the controller controls the power source (11) to rotate based on the received electrical signal.