CN220866970U

CN220866970U - Tower crane boom capable of preventing rope from falling off

Info

Publication number: CN220866970U
Application number: CN202322819665.2U
Authority: CN
Inventors: 毛金
Original assignee: Jiangyin Hongquan Machinery Technology Co ltd
Current assignee: Jiangyin Hongquan Machinery Technology Co ltd
Priority date: 2023-10-20
Filing date: 2023-10-20
Publication date: 2024-04-30
Anticipated expiration: 2033-10-20

Abstract

The utility model discloses a tower crane boom capable of preventing rope from falling off, which comprises a boom outer shell, wherein a servo motor is arranged at the top of the boom outer shell, a gear is arranged at the output end of the servo motor, guide rails are symmetrically arranged at the two ends of the bottom of the interior of the boom outer shell, a boom is arranged in the interior of the boom outer shell, a rack is arranged at the top of the boom, and the rack is meshed with the gear; according to the utility model, the steel wire rope is always positioned in the middle of the guide wheel through the guide wheel shape structure, so that the swing of the steel wire rope is avoided, and the steel wire rope is prevented from falling off; and through the oil pump negative pressure through pipe with the inside lubricating oil extraction of lubricating oil tank to connecting pipe department, through the inside of connecting pipe transfer to its one side and rope wetting ring, through brush hair and the nozzle on it lubricate wire rope department to reduce the friction between the wire rope, prevent wire rope damage and appear broken wire or wearing and tearing, in order to prolong its life and security.

Description

Tower crane boom capable of preventing rope from falling off

Technical Field

The utility model relates to the technical field of tower crane booms, in particular to a tower crane boom capable of preventing rope from falling off.

Background

The tower crane is common hoisting equipment in a construction site, is also called as a tower crane, and is used for using construction raw materials such as steel bars, timber, concrete, steel pipes and the like for hoisting construction, and the existing tower crane is in an un-tensioned vertical hoisting state in the initial hoisting process, so that the steel wire rope is easy to separate from a guide fixed pulley arranged on a traction frame beam tail end support, and the steel wire rope is subjected to extrusion and flattening exercise, so that a rope-releasing accident is caused, namely, an casualty damage accident caused by falling and collapsibility of a heavy object from a binding hoisting rope;

According to related retrieval and common accident analysis of the existing tower crane boom, the existing bulletin number is CN219058369U, the tower crane boom comprises a first boom, one side end face of the first boom is fixedly connected with a mounting plate, a telescopic cavity is formed in the first boom, in the utility model, a second boom is slidably connected in the first boom, a second servo motor is arranged on one side of the first boom, the output end of the second servo motor is fixedly connected with a gear, the gear is meshed with a rack at the upper end of the second boom, and the second boom can be controlled to slide in the first boom by driving the gear to rotate through the second servo motor, so that the length of the boom is changed, the working radius is reduced, the use limitation of the tower crane is reduced, and the length of the tower crane is mainly adjusted; and depending on the usual wire rope pull-out, there may be the following reasons: wire rope wear: after long-time use, the steel wire rope can be worn or damaged, so that the rope is broken or worn, and the service life and the safety of the rope are influenced; if the manufacturing quality of the main winding drum of the tower crane is problematic, such as unbalance, unreasonable design and the like, the steel wire rope can shake or rock in the running process, and then the steel wire rope is separated; insufficient lubrication: if the lubrication of the main drum steel wire ropes of the tower crane is insufficient, friction between the steel wire ropes may be increased, thereby damaging the steel wire ropes.

Disclosure of utility model

The utility model aims to provide a tower crane boom capable of preventing rope from falling off, so as to solve the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the tower crane boom capable of preventing rope from falling comprises a boom outer shell, wherein a servo motor is arranged at the top of the boom outer shell, gears are arranged at the output end of the servo motor, guide rails are symmetrically arranged at two ends of the bottom of the interior of the boom outer shell, a boom is arranged in the interior of the boom outer shell, racks are arranged at the top of the boom, the racks are meshed with the gears, a plurality of groups of pulleys are arranged at two sides of the bottom of the boom, and the pulleys are in rolling fit with the guide rails;

The fixed shaft at one side of the two ends of the inner part of the lifting arm is rotationally connected with a guide wheel, the two ends of the guide wheel are of a round table type structure, the middle end of the guide wheel is of a cylindrical type, a steel wire rope is arranged on the outer side of the guide wheel, U-shaped plates are arranged on the outer sides of the two ends of the shaft part of the guide wheel, a connecting plate is arranged at the bottom of each U-shaped plate, a through hole is formed in one side of the bottom of the lifting arm, and a limiting hook is arranged in the connecting plate penetrating through the through hole;

The connecting pipe is installed under the guide pulley in the jib loading boom, the lubricating oil tank is installed to the inside bottom of jib loading boom, one side at lubricating oil tank top is equipped with the oil pump, the input of oil pump is connected with the inside of lubricating oil tank through the pipe, the output of oil pump is through the middle part interconnect of pipe and connecting pipe, the top of connecting pipe is equipped with the rope wetting ring.

Preferably, the shielding frame is installed at the top of the crane arm shell, guide plates are arranged at two ends of the top of the shielding frame, antirust paint is coated on the outer side of the crane arm shell, a long-strip-shaped through hole is formed in the bottom of the crane arm shell, and the steel wire rope extends out of the crane arm shell through the long-strip-shaped through hole.

Preferably, a groove is formed in one side of the connecting pipe, oil spraying ports and bristles are uniformly formed in the inner side of the groove, and the oil spraying ports and the bristles in the groove lubricate the steel wire rope contacted with the guide wheel.

Preferably, the rope wetting ring is made of a circular ring structure, and the inner side of the rope wetting ring is uniformly provided with an oil nozzle and soft bristles, and the oil nozzle and the soft bristles lubricate the steel wire rope so as to reduce friction between the steel wire ropes, prevent the steel wire rope from being damaged and broken or worn, and prolong service life and safety of the steel wire rope.

Preferably, an access cover is arranged at one end of the lifting arm, and the access cover corresponds to the lubricating oil tank.

Preferably, one side of the limiting hook is provided with an opening, and the limiting hook limits the steel wire rope so as to avoid the steel wire rope from swinging back and forth in the hoisting process, further achieve the auxiliary limiting effect and prevent rope falling.

Preferably, one side at the top of the lubricating oil tank is provided with an oil filling port, the oil filling port is provided with an oil filling cover, and the lubricating oil tank can be filled with oil through the oil filling port and sealed through the oil filling cover.

Compared with the prior art, the utility model has the beneficial effects that: the tower crane boom capable of preventing the rope from falling off enables the steel wire rope to be always positioned in the middle of the guide wheel through the guide wheel shape structure, so that the steel wire rope is prevented from swinging and falling off; and through the oil pump negative pressure through pipe with the inside lubricating oil extraction of lubricating oil tank to connecting pipe department, through the inside of connecting pipe transfer to its one side and rope wetting ring, through brush hair and the nozzle on it lubricate wire rope department to reduce the friction between the wire rope, prevent wire rope damage and appear broken wire or wearing and tearing, in order to prolong its life and security.

Drawings

FIG. 1 is a front cross-sectional view of the present utility model;

FIG. 2 is a second front cross-sectional view of the present utility model;

FIG. 3 is a front view of the present utility model;

FIG. 4 is a perspective view of a guide wheel of the present utility model;

fig. 5 is a front cross-sectional view of the rope wetting ring of the present utility model.

In the figure: 1. a boom outer housing; 2. a servo motor; 3. a gear; 4. a guide rail; 5. a boom; 6. a rack; 7. a pulley; 8. a guide wheel; 9. a U-shaped plate; 10. a connecting plate; 11. a through port; 12. a limit hook; 13. a connecting pipe; 14. a lubrication oil tank; 15. an oil pump; 16. a conduit; 17. and (5) wetting the rope ring.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, embodiments of the present utility model are provided: the utility model provides a tower crane jib of anticreep rope, including jib outer casing 1, servo motor 2 is installed at the top of jib outer casing 1, servo motor 2's output is equipped with gear 3, the both ends symmetry of the inside bottom of jib outer casing 1 are equipped with guide rail 4, the inside of jib outer casing 1 is equipped with jib 5, rack 6 is installed at the top of jib 5, and rack 6 and gear 3 intermeshing, the multiunit pulley 7 is arranged to the both sides of jib 5 bottom, multiunit pulley 7 and guide rail 4 rolling fit, the shielding frame is installed at the top of jib outer casing 1, and the both ends at shielding frame top are equipped with the guide plate, the outside of jib outer casing 1 is coated with rust-proof paint, prevent corrosion, rectangular through-hole has been seted up to the bottom of jib outer casing 1, wire rope extends the inside of jib outer casing 1 through rectangular through-hole, one end of jib 5 is equipped with the access cover, and the access cover corresponds with oil tank 14, the lubrication is convenient for overhaul;

One side fixed shaft at two ends of the inner part of the lifting arm 5 is rotationally connected with a guide wheel 8, two ends of the guide wheel 8 are of a round table type structure, the middle end of the guide wheel 8 is of a cylindrical type structure, a steel wire rope is arranged on the outer side of the guide wheel 8, a U-shaped plate 9,U is arranged at the outer sides of two ends of the shaft part of the guide wheel 8, a connecting plate 10 is arranged at the bottom of the U-shaped plate 9, a through hole 11 is formed in one side of the bottom of the lifting arm 5, the connecting plate 10 penetrates through the inside of the through hole 11 and is provided with a limiting hook 12, one side of the limiting hook 12 is provided with an opening, and the limiting hook 12 limits the steel wire rope so as to prevent the steel wire rope from swinging back and forth in the lifting process, further achieve the auxiliary limiting effect and prevent rope falling;

The connecting pipe 13 is installed under the guide pulley 8 in the crane boom 5, one side of the connecting pipe 13 is provided with a groove, the inner side of the groove is uniformly provided with an oil injection port and bristles, the steel wire rope contacted with the guide pulley 8 is lubricated by the oil injection port and the bristles in the groove, the lubricating oil tank 14 is installed at the bottom of the inner part of the crane boom 5, an oil pump 15 is arranged on one side of the top of the lubricating oil tank 14, the input end of the oil pump 15 is connected with the inner part of the lubricating oil tank 14 through a guide pipe 16, the output end of the oil pump 15 is connected with the middle part of the connecting pipe 13 through the guide pipe, the top of the connecting pipe 13 is provided with a rope wetting ring 17, the rope wetting ring 17 is made of a circular ring structure, the inner side of the rope wetting ring 17 is uniformly provided with an oil injection nozzle and soft bristles, the steel wire rope is lubricated through the oil injection nozzle and the soft bristles, friction between the steel wire rope is reduced, broken wires or worn is prevented from happening, the service life and safety of the lubricating oil tank 14 are prolonged, one side of the top of the lubricating oil tank 14 is provided with the oil injection port, the oil injection port is provided with an oil injection cover, the lubricating oil can be sealed inside the lubricating oil tank 14 through the oil injection port.

Working principle: the crane boom of the tower crane drives the gear 3 to rotate through the driving of the servo motor 2, and drives the crane boom 5 to move in the crane boom shell 1 through the mutual engagement between the gear 3 and the rack 6 and the rolling relation between the pulley 7 and the guide rail 4; the steel wire rope is always positioned in the middle of the guide wheel 8 through the shape structure of the guide wheel 8, so that the swing of the steel wire rope is avoided, and the steel wire rope is prevented from falling off; and negative pressure of the oil pump 15 pumps the lubricating oil in the lubricating oil tank 14 to the connecting pipe 13 through the guide pipe 16, and the lubricating oil is transferred to one side of the connecting pipe 13 and the inside of the rope wetting ring 17, and the brush hair and the oil nozzle on the lubricating pipe lubricate the steel wire rope so as to reduce friction between the steel wire ropes, prevent the steel wire ropes from being damaged, and prolong the service life and the safety of the steel wire ropes.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected" and "connected" are to be construed broadly, and may be either a fixed connection or a removable connection, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Claims

1. The utility model provides a tower crane jib for crane that anticreep rope, includes jib housing (1), its characterized in that: the lifting arm is characterized in that a servo motor (2) is arranged at the top of the lifting arm outer shell (1), gears (3) are arranged at the output end of the servo motor (2), guide rails (4) are symmetrically arranged at two ends of the bottom inside the lifting arm outer shell (1), a lifting arm (5) is arranged inside the lifting arm outer shell (1), racks (6) are arranged at the top of the lifting arm (5), the racks (6) are meshed with the gears (3), a plurality of groups of pulleys (7) are arranged at two sides of the bottom of the lifting arm (5), and the pulleys (7) are in rolling fit with the guide rails (4);

One side fixed shaft at two ends of the inner part of the lifting arm (5) is rotationally connected with a guide wheel (8), two ends of the guide wheel (8) are of a round table structure, the middle end of the guide wheel (8) is of a cylindrical structure, a steel wire rope is arranged on the outer side of the guide wheel (8), a U-shaped plate (9) is arranged on the outer side of two ends of a shaft part of the guide wheel (8), a connecting plate (10) is arranged at the bottom of the U-shaped plate (9), a through hole (11) is formed in one side of the bottom of the lifting arm (5), and the connecting plate (10) penetrates through the inner part of the through hole (11) and is provided with a limiting hook (12);

Connecting pipe (13) are installed under guide pulley (8) in cargo boom (5), lubricating oil tank (14) are installed to the inside bottom of cargo boom (5), one side at lubricating oil tank (14) top is equipped with oil pump (15), the input of oil pump (15) is connected with the inside of lubricating oil tank (14) through pipe (16), the output of oil pump (15) is through the middle part interconnect of pipe and connecting pipe (13), the top of connecting pipe (13) is equipped with wetting ring (17).

2. The anti-rope-release tower crane boom according to claim 1, wherein: the lifting arm is characterized in that a shielding frame is arranged at the top of the lifting arm outer shell (1), guide plates are arranged at two ends of the top of the shielding frame, antirust paint is coated on the outer side of the lifting arm outer shell (1), and a strip-shaped through hole is formed in the bottom of the lifting arm outer shell (1).

3. The anti-rope-release tower crane boom according to claim 1, wherein: one side of the connecting pipe (13) is provided with a groove, and the inner side of the groove is uniformly provided with an oil spraying port and bristles.

4. The anti-rope-release tower crane boom according to claim 1, wherein: the rope wetting ring (17) is made of a circular ring structure, and an oil nozzle and soft bristles are uniformly arranged on the inner side of the rope wetting ring (17).

5. The anti-rope-release tower crane boom according to claim 1, wherein: one end of the lifting arm (5) is provided with an access cover, and the access cover corresponds to the lubricating oil tank (14).

6. The anti-rope-release tower crane boom according to claim 1, wherein: an opening is arranged on one side of the limiting hook (12).

7. The anti-rope-release tower crane boom according to claim 1, wherein: an oil filling port is arranged on one side of the top of the lubricating oil tank (14), and an oil filling cover is arranged on the oil filling port.