CN216889846U

CN216889846U - Linkage rope supporting device for crane boom

Info

Publication number: CN216889846U
Application number: CN202123358093.XU
Authority: CN
Inventors: 胡雅柯
Original assignee: Sichuan Qiangli Construction Machinery Co ltd
Current assignee: Sichuan Qiangli Construction Machinery Co ltd
Priority date: 2021-12-29
Filing date: 2021-12-29
Publication date: 2022-07-05
Anticipated expiration: 2031-12-29

Abstract

The utility model discloses a linkage rope supporting device for a crane boom, which comprises a crane boom body, wherein a walking trolley is arranged on the crane boom body in a sliding manner, the linkage rope supporting device comprises a left rope supporting frame and a right rope supporting frame which are arranged on two sides of the walking trolley, the left rope supporting frame and the right rope supporting frame are of symmetrical structures, amplitude-changing pulleys are arranged at two ends of the crane boom body through bearings, walking steel ropes are sleeved on the two amplitude-changing pulleys, and the left rope supporting frame and the right rope supporting frame are fixed on the walking steel ropes; on the rope frame slides and sets up on the jib loading boom body and be fixed in the walking steel cable with right side support rope frame, left side support rope frame includes sill bar (2) and is fixed in first montant (3) and second montant (4) at sill bar (2) both ends, is fixed with two relative fixing base (5) that set up on sill bar (2), two fixing base (5) support bearing are fixed with spacing pivot (6), this internal play to rise wire rope of jib loading boom places on spacing pivot (6). The utility model has the advantage of protecting the crane boom.

Description

Linkage rope supporting device for crane boom

Technical Field

The utility model relates to the field of mechanical crane booms, in particular to a linkage rope supporting device for a crane boom.

Background

The tower crane structurally comprises a bottom frame, a tower body, a rotary support, a tower top, a balance arm, a crane boom, a cab, a ladder, a platform and the like; the mechanism is divided into a lifting mechanism, a swing mechanism, an amplitude variation mechanism, a hydraulic mechanism and the like, wherein the amplitude variation mechanism comprises an amplitude variation motor, a speed reducer, an amplitude variation winding drum, an amplitude variation trolley and the like, the lifting mechanism comprises a lifting steel wire rope and the like, and the crane boom is provided with tracks along the radial two sides.

The length of a cargo boom of some large-scale tower cranes reaches 80 meters, the maximum lifting capacity is continuously increased, and the diameter of a lifting steel wire rope is increased. Therefore, the problem that the hoisting steel wire rope has overlarge sag deflection when the tower crane is in no-load can be generated, and in large-scale construction projects, a plurality of large-scale tower cranes and other construction equipment usually work simultaneously, and the working amplitudes are overlapped in a staggered mode. Under the condition, the danger is brought to the building construction; the rope winding and unwinding time during hoisting can be increased, and the construction efficiency of the tower crane is reduced.

In the prior art, the droop is reduced by increasing the weight of the hook, but the lifting capacity of the top of the crane arm is reduced. The stress of the crane boom is increased under the same hoisting load condition.

In patent CN201920701923.8, a two reel luffing mechanism holds in palm rope device is disclosed, including luffing mechanism, luffing mechanism is including luffing the dolly, luffing the reel and pull the reel, and luffing the reel is equipped with first ring gear and connecting plate, rotates between two connecting plates to be connected with intermediate gear and pulls the reel, pulls the reel and is equipped with the second ring gear, and intermediate gear meshes with first ring gear and second ring gear respectively, and the diameter ratio of first ring gear and second ring gear is 2: 1; the hoisting arm is provided with a front rope supporting trolley positioned on the front side of the amplitude-variable trolley and a rear rope supporting trolley positioned on the rear side of the amplitude-variable trolley, which are used for supporting a hoisting steel wire rope and an amplitude-variable steel wire rope; the traction drum is used for driving the front rope supporting trolley, the rear rope supporting trolley and the amplitude variation trolley to slide back and forth along the track of the crane boom, and the amplitude variation trolley respectively touches and fixes the rope supporting trolleys on the front side and the rear side when the front end and the rear end of the stroke of the amplitude variation trolley are positioned. The device has good and stable rope supporting effect, simple structure and light weight, but the structure of the device is more complex.

In patent CN201220419523.6, it discloses a rope supporting device for hoisting steel rope of tower crane long boom, comprising boom body (1), walking trolley (2) is connected with boom body (1) by roller (3) in sliding way, its characterized in that: still be provided with on jib loading boom body (1) and play to rise steel cable and hold in the palm rope device (5), play to rise steel cable and hold in the palm rope device (5) and pass through fixed bolster (4) and jib loading boom body (1) fixed connection, this utility model has effectively solved current tower crane jib loading boom length and has reached certain length after, play to rise wire rope and take place flagging under self action of gravity to lead to certain potential safety hazard problem, also brought a great deal of inconvenience for the construction simultaneously, but the device's structure is comparatively complicated.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art and provide a linkage rope supporting device for a crane boom, so that the defects are overcome.

The purpose of the utility model is realized by the following technical scheme:

a linkage rope supporting device for a crane boom comprises a crane boom body, wherein a walking trolley is arranged on the crane boom body in a sliding mode.

The linkage rope supporting device comprises a left rope supporting frame and a right rope supporting frame which are arranged on two sides of the walking trolley, the left rope supporting frame and the right rope supporting frame are of symmetrical structures, amplitude-variable pulleys are mounted at two ends of the crane boom body through bearings, walking steel ropes are sleeved on the two amplitude-variable pulleys, and the left rope supporting frame and the right rope supporting frame are fixed on the walking steel ropes; the rope supporting frame comprises a bottom rod, a first vertical rod and a second vertical rod, wherein the first vertical rod and the second vertical rod are fixed at two ends of the bottom rod, two fixing seats which are arranged oppositely are fixed on the bottom rod, a support bearing of each fixing seat is fixed with a limiting rotating shaft, and a lifting steel wire rope in the crane boom body is placed in the rotating shaft.

Further, a slide way is arranged on the boom body, and a roller is arranged on the walking trolley and is arranged in the slide way in a sliding manner; all be provided with running gear on first montant and the second montant, running gear includes top running gear and side running gear, top running gear includes the first pivot that is fixed in first montant and second montant upper end through the bearing, the medial extremity of first pivot is fixed with the top gyro wheel, the top gyro wheel suits with the upper end surface of jib loading boom body.

Furthermore, the side walking assembly comprises two fixing plates fixed on the side surfaces of the first vertical rod and the second vertical rod respectively, a second rotating shaft is fixed between the two fixing plates through a bearing, a side roller is fixed on the second rotating shaft, and the outer surface of the side roller is matched with the side wall of the crane boom body.

Furthermore, two the extension end face of fixed plate is fixed with first mounting panel, the lateral surface of first mounting panel is fixed with first rubber buffer block.

Furthermore, still be fixed with the dead lever on first montant and the second montant, the extension end of dead lever is fixed with the second mounting panel, the outside of second mounting panel is fixed with second rubber buffer block, the dead lever is located relative both sides face with the fixed plate, the height that highly is higher than the dead lever of fixed plate.

Furthermore, an inner rod is fixed on the opposite sides of the first vertical rod and the second vertical rod respectively, a fixing piece is fixed on the end face of the extending end of the inner rod, a connecting rod is fixed on the inner side end of the fixing piece respectively, and the extending end of the connecting rod is connected and fixed with the fixing seat.

Furthermore, a first right-angle plate is fixed at the connecting part of the first vertical rod, the second vertical rod and the bottom rod, and a second right-angle plate is fixed between the fixed rod and the first vertical rod and between the fixed rod and the second vertical rod.

The utility model has the beneficial effects that:

according to the linkage rope supporting device for the crane boom, the left rope supporting frame and the right rope supporting frame are arranged to be impacted and pushed with the walking trolley, so that the lifting steel wire rope is supported from the middle part, the droop of the lifting steel wire rope is obviously reduced, and potential safety hazards are eliminated.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a side view of the present invention;

fig. 3 is a top view of the present invention.

In the figure, 2-bottom rod, 3-first vertical rod, 4-second vertical rod, 5-fixed seat, 6-limit rotating shaft, 7-first rotating shaft, 8-top roller, 9-fixed plate, 10-second rotating shaft, 11-side roller, 12-first mounting plate, 13-first rubber buffer block, 14-fixed rod, 15-second mounting plate, 16-second rubber buffer block, 17-inner rod, 18-fixed plate, 19-connecting rod, 20-first right angle plate and 21-second right angle plate.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only a few embodiments of the present invention, and not all embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In this embodiment, as shown in fig. 1 to 3, a linkage rope supporting device for a crane boom comprises a crane boom body, a walking trolley is slidably arranged on the crane boom body, the linkage rope supporting device comprises a left rope supporting frame and a right rope supporting frame which are arranged on two sides of the walking trolley, the left rope supporting frame and the right rope supporting frame are of a symmetrical structure, two ends of the crane boom body are both provided with amplitude-variable pulleys through bearings, two amplitude-variable pulleys are sleeved with walking steel ropes, and the left rope supporting frame and the right rope supporting frame are fixed on the walking steel ropes; the rope support frame and the right rope support frame are arranged on the crane boom body in a sliding mode and fixed on a walking steel rope, the left rope support frame comprises a bottom rod 2 and a first vertical rod 3 and a second vertical rod 4 which are fixed at two ends of the bottom rod 2, two fixing seats 5 which are arranged oppositely are fixed on the bottom rod 2, a support bearing of each fixing seat 5 is fixed with a limiting rotating shaft 6, and a lifting steel rope in the crane boom body is placed on the limiting rotating shaft 6.

In the embodiment, the boom body is provided with two driving wheels, the driving wheels are sleeved with driving belts, and the walking trolley is fixed on the driving belts; connecting sheets are further fixed on the first vertical bar 3 and the second vertical bar 4, two ends of each connecting sheet are respectively connected with a fixed steel rope, when the walking trolley walks for a certain distance, the corresponding left rope support frame or the right rope support frame can be impacted and pushed by the walking trolley, then the fixed steel rope can rotate, so that the other left rope support frame or the right rope support frame far away from the walking trolley can move, and then a lifting steel rope on the crane boom body is supported through a rotating shaft 6, the walking trolley is in the prior art, and the structure of the walking trolley is not repeated; the amplitude-variable pulley is driven by a motor.

The embodiment is further configured as follows: the crane boom body is provided with a slide way, the walking trolley is provided with a roller, and the roller is arranged in the slide way in a sliding manner; first montant 3 and 4 upper ends of second montant all are provided with running gear, running gear includes top running assembly and side running assembly, top running assembly includes is fixed in first montant 3 and the first pivot 7 of 4 upper ends of second montant through the bearing, the medial extremity of first pivot 7 is fixed with top gyro wheel 8, top gyro wheel 8 suits with the upper end surface of jib loading boom body.

A limiting block is fixed at the outer side end of the first rotating shaft 7; through the arrangement of the top walking assembly, the left rope supporting frame and the right rope supporting frame can be arranged on the crane boom body in a sliding mode.

The embodiment is further configured as follows: the side walking assembly comprises two fixing plates 9 fixed on the side faces of the first vertical rod 3 and the second vertical rod 4 respectively, a second rotating shaft 10 is fixed between the two fixing plates 9 through a bearing, a side roller 11 is fixed on the second rotating shaft 10, and the outer surface of the side roller 11 is matched with the side wall of the crane boom body.

Through the arrangement of the side walking assembly, the sliding of the left rope supporting frame and the right rope supporting frame is reduced to be smoother; the height of the top walking component is higher than that of the side walking component, and the top walking component and the side walking component are arranged at ninety degrees.

The embodiment is further configured as follows: two the extension end terminal surface of fixed plate 9 is fixed with first mounting panel 12, the lateral surface of first mounting panel 12 is fixed with first rubber buffer 13.

The embodiment is further configured as follows: still be fixed with dead lever 14 on first montant 3 and the second montant 4, the extension end of dead lever 14 is fixed with second mounting panel 15, the outside of second mounting panel 15 is fixed with second rubber buffer 16, dead lever 14 is located relative both sides face with fixed plate 9, fixed plate 9 highly is higher than the height of dead lever 14.

Through the setting of first rubber buffer 13 and second rubber buffer 16 for the side respectively plays the striking cushioning effect to the jib loading boom body, walking dolly about left side support rope frame and the right side support rope frame.

The embodiment is further configured as follows: an inner rod 17 is fixed on the opposite sides of the first vertical rod 3 and the second vertical rod 4 respectively, a fixing piece 18 is fixed on the end face of the extending end of the inner rod 17, a connecting rod 19 is fixed on the inner side end of the fixing piece 18 respectively, and the extending end of the connecting rod 19 is connected and fixed with the fixing seat 5.

The embodiment is further configured as follows: first right-angle plate 20 is fixed at the junction between first montant 3, second montant 4 and bottom bar 2, be fixed with second right-angle plate 21 between dead lever 14 and first montant 3, second montant 4.

Through the setting of connecting rod 19, first right-angle board 20 and second right-angle board 21 for the overall structure of left rope support frame is more firm with right rope support frame.

The working principle of the utility model is as follows:

still be fixed with the connection piece on first montant 3 and the second montant 4, fixed steel cable is connected respectively at the both ends of connection piece, and when the certain distance of walking dolly walking, corresponding left side holds in the palm rope frame or right side holds in the palm the rope frame then can be promoted by the dolly striking of walking, then fixed steel cable can rotate for another left side holds in the palm the rope frame or right side that keeps away from the walking dolly and holds in the palm the rope frame and remove, then holds in the palm through pivot 6 lifting wire rope who plays to rise on the jib loading boom body.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a linkage holds in palm rope device for on jib loading boom, includes the jib loading boom body, it is provided with walking dolly, its characterized in that to slide on the jib loading boom body:

linkage holds in palm rope device is including setting up in left support rope frame and the right support rope frame of walking dolly both sides, left side holds in the palm rope frame and right support rope frame and is symmetrical structure, the both ends of jib loading boom body are all installed through the bearing and are become width of cloth pulley, two become width of cloth pulley upper cover and be equipped with the walking steel cable, left side holds in the palm rope frame and right support rope frame slip set up on the jib loading boom body and be fixed in the walking steel cable on, left side holds in the palm rope frame and includes sill bar (2) and be fixed in first montant (3) and second montant (4) at sill bar (2) both ends, be fixed with two relative fixing base (5) that set up on sill bar (2), two fixing base (5) support bearing is fixed with spacing pivot (6), this internal play to rise wire rope and place on spacing pivot (6) of jib loading boom.

2. A linked rope-supporting device for a crane arm as claimed in claim 1, wherein: the crane boom body is provided with a slide way, the walking trolley is provided with a roller, and the roller is arranged in the slide way in a sliding manner; first montant (3) and second montant (4) upper end all are provided with running gear, running gear includes top running assembly and side running assembly, top running assembly is including being fixed in first montant (3) and first pivot (7) of second montant (4) upper end through the bearing, the medial extremity of first pivot (7) is fixed with top gyro wheel (8), top gyro wheel (8) suit with the upper end surface of jib loading boom body.

3. The linkage rope supporting device for the crane arm as claimed in claim 2, wherein: the side walking assembly comprises two fixing plates (9) fixed on the side faces of a first vertical rod (3) and a second vertical rod (4) respectively, a second rotating shaft (10) is fixed between the fixing plates (9) through a bearing, side rollers (11) are fixed on the second rotating shaft (10), and the outer surfaces of the side rollers (11) are matched with the side walls of the crane boom body.

4. A linked rope carrying device for a crane boom as claimed in claim 3, wherein: two the extension end face of fixed plate (9) is fixed with first mounting panel (12), the lateral surface of first mounting panel (12) is fixed with first rubber buffer block (13).

5. A linked rope carrying device for a crane boom as claimed in claim 3, wherein: still be fixed with dead lever (14) on first montant (3) and second montant (4), the extension end of dead lever (14) is fixed with second mounting panel (15), the outside of second mounting panel (15) is fixed with second rubber buffer block (16), dead lever (14) and fixed plate (9) are located relative both sides face, the height that highly is higher than dead lever (14) of fixed plate (9).

6. A linked rope-supporting device for a crane arm as claimed in claim 1, wherein: the utility model discloses a fixing base, including first montant (3), second montant (4), the opposite side of first montant (3) and second montant is fixed with interior pole (17) respectively, the extension end terminal surface of interior pole (17) is fixed with stationary blade (18), the medial extremity of stationary blade (18) is fixed with connecting rod (19) respectively, the extension end and the fixing base (5) of connecting rod (19) are connected fixedly.

7. A linked rope supporting device for a crane arm as claimed in claim 5, wherein: the connecting parts between the first vertical rod (3) and the bottom rod (2), between the second vertical rod (4) and the bottom rod (3), are fixed with a first right-angle plate (20), and between the fixed rod (14) and the first vertical rod (3) and between the fixed rod and the second vertical rod (4), are fixed with a second right-angle plate (21).