CN217498513U - Boom structure for live-line work hoisting device - Google Patents
Boom structure for live-line work hoisting device Download PDFInfo
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- CN217498513U CN217498513U CN202220769683.7U CN202220769683U CN217498513U CN 217498513 U CN217498513 U CN 217498513U CN 202220769683 U CN202220769683 U CN 202220769683U CN 217498513 U CN217498513 U CN 217498513U
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- jib
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- boom
- live working
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Abstract
The utility model discloses a live working lifts by crane device uses jib structure in jib technical field, including the big arm of jib and the jib forearm that mobile cup jointed, the rear end fixedly connected with cross sleeve of the big arm of jib, it installs the arm and adopts the bolt pin lock solid to peg graft in the cross sleeve, jib forearm front end is provided with the jib guide pulley, be provided with flexible adjustment mechanism between the big arm of jib and the jib forearm, the utility model discloses the convertible formation L type or I type structure to make things convenient for the jib to be connected the installation with the lifting machine main part, the utility model discloses a flexible length of the adjustable jib forearm of flexible adjustment mechanism is through shortening the jib forearm to interfere the touching with object on every side when avoiding the jib to swing, eliminate the construction operation and hinder.
Description
Technical Field
The utility model relates to a jib technical field specifically is a live working lifting device uses boom structure.
Background
The existing lifting device of the live working vehicle is provided with an I-shaped lifting rod, the angle of the lifting device is required to be adjusted to realize that the lifting rod is installed and a pulley is easy to block during installation, the operation process is complex, the speed is slow, personnel are required to stand on a bucket arm during installation, certain danger exists, the lifting rod is required to be connected with the lifting device in a vertical or horizontal state according to different installation use scenes, the existing lifting rod is in a fixed I shape, the lifting rod is required to be manually erected during vertical connection installation, the operation difficulty is large, in addition, the existing lifting rod is fixed in length, when the lifting device is operated in a narrow space, the swinging of the lifting rod can interfere with surrounding objects to touch, and construction operation is blocked.
Based on this, the utility model designs a live working is jib structure for hoisting accessory to solve above-mentioned problem.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a live working is jib structure for hoisting accessory to solve above-mentioned technical problem.
In order to realize the purpose, the utility model provides the following technical scheme: the utility model provides a live working is davit structure for hoisting accessory, includes the big arm of jib and the jib forearm that mobile cup jointed, the rear end fixedly connected with cross sleeve of the big arm of jib, it has jib installation arm and adopts the bolt pin lock solid to peg graft in the cross sleeve, jib forearm front end is provided with the jib guide pulley, be provided with flexible adjustment mechanism between big arm of jib and the jib forearm.
Preferably, flexible adjustment mechanism includes adjusting screw and adjusting nut, adjusting screw's front end passes through the bearing and rotates and install on an end plate, the end plate fixed set up in jib forearm front end, adjusting nut is fixed in on a locating plate, the locating plate is fixed in jib forearm inner chamber wall.
Preferably, the rear end of the adjusting screw is provided with a limiting cotter pin.
Preferably, the suspender guide wheel is rotatably installed on a U-shaped guide wheel frame, the top of the U-shaped guide wheel frame is fixed on a connecting sleeve, and the connecting sleeve is fixedly sleeved at the front end of the suspender forearm.
Preferably, through holes are formed in the cross center of the cross sleeve and one end of the suspender mounting arm, and the suspender mounting arm is horizontally or vertically arranged in the inner cavity of the cross sleeve in a penetrating mode and then is connected with the through holes through the bolt pins to achieve locking.
Preferably, the mounting end of the boom mounting arm is provided with two mounting holes at intervals.
Compared with the prior art, utility model's beneficial effect does:
the utility model discloses the rear end fixedly connected with cross sleeve of jib, it has jib installation arm and adopts the bolt pin lock solid to peg graft in the cross sleeve, during the in-service use, can be according to hoisting device's installation angle, with jib installation arm in advance with cross sleeve with the level or the structure of vertical state connection formation L type or I type to make things convenient for the jib to be connected the installation with the crane main part.
The utility model discloses the main part of jib includes the big arm of mobile jib and the jib forearm that cup joints, is provided with flexible adjustment mechanism between big arm of jib and the jib forearm, through the flexible length of the adjustable jib forearm of flexible adjustment mechanism, when hoisting accessory functions in narrow and small space, the accessible shortens the jib forearm to interfere the touching with object on every side when avoiding the jib to swing, eliminate the construction operation and hinder.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive work.
FIG. 1 is a schematic view of the overall L-shaped structure of the present invention;
FIG. 2 is a schematic view of the overall I-shaped structure of the present invention;
fig. 3 is a schematic view of the connecting structure of the boom guide wheel of the present invention.
In the drawings, the components represented by the respective reference numerals are listed below:
1-a large boom arm, 2-a small boom arm, 3-a cross sleeve, 4-a boom mounting arm, 5-a bolt pin, 51-a boom guide wheel, 6-an adjusting screw, 7-an adjusting nut, 8-an end plate, 9-a positioning plate, 10-a limiting cotter pin, 11-a U-shaped guide wheel frame, 12-a connecting sleeve and 13-a mounting hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by a person skilled in the art without any inventive work based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1-3, the utility model provides a technical solution: a boom structure for a live working hoisting device comprises a boom big arm 1 and a boom small arm 2 which are movably sleeved, wherein the boom big arm 1 and the boom small arm 2 are of square tube structures, the rear end of the boom big arm 1 is fixedly connected with a cross sleeve 3, a boom mounting arm 4 is inserted in the cross sleeve 3 and is locked by a bolt pin 5, and when the boom structure is actually used, the boom mounting arm 4 can be connected with the cross sleeve 3 in advance in a horizontal or vertical state according to the mounting angle of the hoisting device to form an L-shaped or I-shaped structure, so that the boom and a hoisting machine body can be conveniently connected and mounted; the front end of the boom forearm 2 is provided with a boom guide wheel 51, a telescopic adjusting mechanism is arranged between the boom big arm 1 and the boom forearm 2, the telescopic length of the boom forearm 2 can be adjusted through the telescopic adjusting mechanism, and when the lifting device operates in a narrow space, the boom forearm 2 can be shortened through the telescopic adjusting mechanism, so that the interference of the boom with surrounding objects during swing rotation is avoided, and the obstruction of construction operation is eliminated.
Specifically, flexible adjustment mechanism includes adjusting screw 6 and adjusting nut 7, adjusting screw 6's front end passes through the bearing and rotates and install on an end plate 8, end plate 8 is fixed to be set up in 2 front ends of jib forearm, 8 accessible screw locks or welded fastening of end plate, adopt the screw lock solid can make things convenient for later stage to dismantle to overhaul the maintenance, adjusting nut 7 is fixed in on a locating plate 9, locating plate 9 is fixed in 1 inner chamber wall of the big arm of jib, 9 centers of locating plate are punched and are supplied adjusting screw 6 to pass, adjusting nut 7 corresponds with this hole site and welds in locating plate 9 one side.
Furthermore, the rear end of the adjusting screw rod 6 is provided with a limiting cotter pin 10, the rear end of the adjusting screw rod 6 is radially perforated, and the limiting cotter pin 10 penetrates through the pin hole and is used for preventing the adjusting screw rod 6 from being separated from the adjusting nut 7, namely preventing the suspender large arm 1 and the suspender small arm 2 from being separated from the sleeving.
Specifically, the boom guide wheel 51 is rotatably mounted on a U-shaped guide wheel frame 11, the top of the U-shaped guide wheel frame 11 is fixed on a connecting sleeve 12, the connecting sleeve 12 is fixedly sleeved at the front end of the boom forearm 2, and the connecting sleeve 12 and the boom forearm 2 are prevented from sliding relatively by welding or locking with screws.
Specifically, the size of cross sleeve 3 is less than 1 size of the big arm of jib, 3 one ends of cross sleeve are inserted and are arranged in 1 rear end of the big arm of jib and welded fastening, the through-hole has all been seted up to cross center department and 4 one ends of jib installation arm of cross sleeve 3, jib installation arm 4 is along level or vertical after wearing to locate the 3 inner chambers of cross sleeve, utilize 5 connect-hole of bolt pin to realize the lock solid, when needing to alternate the jib gesture, dismantle back with bolt pin 5 earlier, jib installation arm 4 takes off, it can to utilize 5 locks solid of bolt pin after pegging graft with cross sleeve 3 from another direction.
Furthermore, the mounting end of the boom mounting arm 4 is provided with two mounting holes 13 at intervals for the mounting and locking of the boom mounting arm 4 by the pin shaft after being connected with the hoisting device.
Working principle embodiment:
the utility model discloses the rear end fixedly connected with cross sleeve 3 of jib, 3 interpolations of cross sleeve have jib installation arm 4 and adopt 5 locks of bolt pin, during the in-service use, can be according to hoisting accessory's installation angle, with jib installation arm 4 in advance with cross sleeve 3 with the level or the structure of vertical state connection formation L type or I type to make things convenient for the jib to be connected the installation with the lifting machine main part.
The utility model discloses the main part of jib includes the big arm 1 of mobile jib that cup joints and jib forearm 2, is provided with flexible adjustment mechanism between the big arm 1 of jib and the jib forearm 2, and through the flexible length of the adjustable jib forearm 2 of flexible adjustment mechanism, when hoisting accessory functions in narrow and small space, the accessible shortens jib forearm 2 to interfere the touching with object on every side when avoiding the jib to swing, eliminate the construction operation and obstruct.
In the description of the present invention, it is to be understood that the terms coaxial, bottom, one end, top, middle, other end, upper, one side, top, inner, front, center, two ends, etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present application, unless otherwise explicitly specified or limited, the terms mounting, disposing, connecting, fixing, screwing, etc. should be understood broadly, for example, they may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the term "connected" may refer to a direct connection, an indirect connection through an intermediate, a connection between two elements or an interaction relationship between two elements, and unless otherwise specifically defined, the term should be understood as having a specific meaning in the present application by those skilled in the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a live working lifting device is with davit structure which characterized in that: big arm of jib (1) and jib forearm (2) including mobile cup jointing, the rear end fixedly connected with cross sleeve (3) of big arm of jib (1), it has jib installation arm (4) and adopts bolt pin (5) lock solid to peg graft in cross sleeve (3), jib forearm (2) front end is provided with jib guide pulley (51), be provided with flexible adjustment mechanism between big arm of jib (1) and jib forearm (2).
2. The boom structure for a live working hoist according to claim 1, characterized in that: the telescopic adjusting mechanism comprises an adjusting screw rod (6) and an adjusting nut (7), the front end of the adjusting screw rod (6) is installed on an end plate (8) through rotation of a bearing, the end plate (8) is fixedly arranged at the front end of the small boom arm (2), the adjusting nut (7) is fixed on a positioning plate (9), and the positioning plate (9) is fixed on the inner cavity wall of the large boom (1).
3. The boom structure for a live working hoist according to claim 2, characterized in that: and a limiting cotter pin (10) is arranged at the rear end of the adjusting screw rod (6).
4. The boom structure for a live working hoist according to claim 1, characterized in that: the hanger rod guide wheel (51) is rotatably arranged on a U-shaped guide wheel frame (11), the top of the U-shaped guide wheel frame (11) is fixed on a connecting sleeve (12), and the connecting sleeve (12) is fixedly sleeved at the front end of the hanger rod small arm (2).
5. The boom structure for a live working hoist according to claim 1, characterized in that: through holes are formed in the cross center of the cross sleeve (3) and one end of the suspender installation arm (4), and the suspender installation arm (4) penetrates through the inner cavity of the cross sleeve (3) horizontally or vertically and is connected with the through holes through the bolt pins (5) to achieve locking.
6. The boom structure for a live-wire work hoisting device according to claim 1, characterized in that: the mounting end of the suspender mounting arm (4) is provided with two mounting holes (13) at intervals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220769683.7U CN217498513U (en) | 2022-04-01 | 2022-04-01 | Boom structure for live-line work hoisting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220769683.7U CN217498513U (en) | 2022-04-01 | 2022-04-01 | Boom structure for live-line work hoisting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217498513U true CN217498513U (en) | 2022-09-27 |
Family
ID=83347034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220769683.7U Active CN217498513U (en) | 2022-04-01 | 2022-04-01 | Boom structure for live-line work hoisting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217498513U (en) |
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2022
- 2022-04-01 CN CN202220769683.7U patent/CN217498513U/en active Active
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