CN202358850U

CN202358850U - Light lift-type cantilever crane

Info

Publication number: CN202358850U
Application number: CN2011204997209U
Authority: CN
Inventors: 何权
Original assignee: HUNAN ELECTRIC POWER COMPANY ULTRA-HIGH VOLTAGE ADMINISTRATION BUREAU
Current assignee: EHV ADMINISTRATION BUREAU OF HUNAN ELECTRIC POWER Co; State Grid Corp of China SGCC
Priority date: 2011-12-05
Filing date: 2011-12-05
Publication date: 2012-08-01
Anticipated expiration: 2021-12-05

Abstract

The utility model provides a light lift-type cantilever crane comprising a hydraulic chain hoisting device, a lower crane arm section, a guide pulley, a gear rack hoisting device, a middle crane arm section, an upper crane arm section, a lifting hook, a cantilever crane, a manual chain block, a power supply box, a winch, a five-step working pedal, a working platform and a foot-pad screw. The hydraulic chain hoisting device is located at the end part of the right side of the lower crane arm section; the guide pulley is mounted at the end part of the left side of the lower crane arm section; the lower crane arm section, the middle crane arm section and the upper crane arm section are sequentially connected together; the gear rack hoisting device is mounted in the middle of the middle crane arm section; the cantilever crane is connected with the upper crane arm section; the lifting hook is mounted at the upper part of the cantilever crane; the five-step working pedal is supported between the working platform and the lower crane arm section; and the foot-pad screw is mounted at the end part of the right side of the working platform. The light lift-type cantilever crane provided by the utility model is used for moving the crane to a proper position and adjusting a foot-pad to a proper height.

Description

Light-duty lifting mode boom crane

Technical field

The utility model relates to hoisting crane, is specially light-duty lifting mode boom crane.

Background technology

Engineer operation places such as indoor and outdoor electrical equipment installation are narrow and small, do not have large-scale driving, can't pass in and out special vehicle; Newly-built substation cement-free portal frame, under no crane situation, very difficult than the large equipment loading and unloading; Tradition lifting operation flow process existing problems: large special vehicle turnover operating area difficulty is big, turnover and operation greatly destroy the greening place; Working space is limited, is unfavorable for the operation simultaneously of two large specials; The off interval place is narrow and small, and safety distance can not get ensureing; Maintenance, cost of installation is higher, is difficult to realize the lean management; The chance production task is heavy, and the special vehicle full-load operation lacks enough special vehiclees and carries out the work.

The utility model content

The technical matters that the utility model solved is to provide light-duty lifting mode boom crane, to solve the shortcoming in the above-mentioned background technology.

The technical matters that the utility model solved adopts following technical scheme to realize:

Light-duty lifting mode boom crane; Comprise in joint under hydraulic chain lifting device, the crane arm, leading sheave, rack-and-gear lifting device, the crane arm that joint, suspension hook, cantilever hang on joint, the crane arm, manual chain block, electrical source of power case, winch, Pyatyi Working pedal, job platform, pad pin screw rod; Said hydraulic chain lifting device is positioned at joint right-hand end under the crane arm; Said crane arm joint left end down is equipped with leading sheave, saves on joint, the crane arm in joint, the crane arm under the crane arm to be connected in turn, and the joint middle part is equipped with the rack-and-gear lifting device in the said crane arm; Joint is connected with cantilever and hangs on the said crane arm; The top that said cantilever hangs is equipped with suspension hook, and said job platform and crane arm support through the Pyatyi Working pedal between the joint down, and said job platform right-hand end is equipped with pad pin screw rod; Said winch is installed on the job platform; And be connected with leading sheave through steel rope, the electrical source of power case is installed on the said job platform, said manual chain block is installed in and saves the bottom in the crane arm.

Beneficial effect

The transportation of the utility model loading is quick, mobile flexible, lifting is safe and efficient; The utility model aim at substation the part primary equipment technological transformation and installation and design; Its loop wheel machine considers that a lot of zones of substation are unfavorable for that large-scale crane carries out field operation; This type hoisting crane volume is little, is convenient to move and pass through equipment, can carry out the replacing and the installation of primary equipment below 1 ton.Be specially adapted to not have installation and the lightning arrester of 220kV and following voltage class at the GIS station of driving, the installation of disconnector.The utility model jenny is to correct position; The adjusting pad pin is to proper height; Guarantee platform level (can place sleeper in the pad underfooting during unfairness of ground), under the telescopic boom contraction state, hold up crane arm, utilize gear to go up and down to regulate to go up the joint height; Through in the regulation of hydraulic system, on save to proper height, and telescopic boom is fixed; Slowly hoisting heavy utilizes chain and tackle block to regulate cantilever and hangs angle, thereby realize accurate centering to correct position.

Description of drawings

Fig. 1 is the structural representation of the utility model.

The specific embodiment

For technological means, creation characteristic that the utility model is realized, reach purpose and be easy to understand understanding with effect, below in conjunction with concrete diagram, further set forth the utility model.

Referring to Fig. 1; The structural representation of light-duty lifting mode boom crane; Light-duty lifting mode boom crane; Comprise that hydraulic chain lifting device 1, crane arm save 5 down in joint 2, leading sheave 3, rack-and-gear lifting device 4, the crane arm, save 6 on the crane arm, suspension hook 7, cantilever hang 8, manual chain block 9, electrical source of power case 10, winch 11, Pyatyi Working pedal 12, job platform 13, pad pin screw rod 14, said hydraulic chain lifting device 1 is positioned at joint 2 right-hand end crane arm under, said crane arm saves 2 left end down leading sheave 3 is installed; Crane arm saves down 5 in joint 2, the crane arm, joint 6 is connected in turn on the crane arm; Joint 5 middle parts are equipped with rack-and-gear lifting device 4 in the said crane arm, and joint 6 is connected with cantilever and hangs 8 on the said crane arm, and said cantilever hangs 8 top suspension hook 7 is installed; Said job platform 13 and crane arm support through Pyatyi Working pedal 12 between the joint 2 down; Said job platform 13 right-hand end are equipped with pad pin screw rod 14, and said winch 11 is installed on the job platform 13, and is connected with leading sheave 3 through steel rope; On the said job platform 13 electrical source of power case 10 is installed, said manual chain block 9 is installed in joint 5 bottoms in the crane arm.

Crane arm goes up and down to lean on rack-and-gear lifting device 4 between saving 5 in joint 6 and the crane arm on the crane arm; Telescopic boom went up and down to lean on hydraulic chain lifting device 1 between joint 5 and crane arm saved 2 down in the crane arm; The crane arm that the other side's steel is done adopts U type pierced process, alleviates its weight, is convenient to; The inverted design of crane arm (under save correct position design rotating shaft), after crane arm fell, effectively reduce the space that occupies; Whole crane arm divide under the crane arm save 5 in joint 2, the crane arm, joint 6 three joint designs on the crane arm, can effectively reduce the hoisting crane transportation, enter the space that the storehouse occupies according to actual its height of sling height adjustment during use;

In the actual engineering, after the equipment that usually runs into rises and winches to correct position, need trickle adjustment can satisfy the situation that centering requires.The lever principle of utilizing the utility model has designed cantilever and has hung, and can hang tail end through 9 pairs of cantilevers of manual chain block and apply pulling force, raises up and the maximum angle that descends can reach 40 degree, can realize the angle fine setting in the centering process.

Playing ponderomotive force is that 10,000 Ns electric winch 11 provides by specified pulling force, slowly exports steel rope, steel rope through leading sheave 3 guiding after, via cantilever furred ceiling end fixed pulley, export moving suspension hook 7 again to, thus with the even hoisting heavy of 0.22 meter/component velocity.

Job platform adopts to overlook and is the design of H type, and the vacant part of front end is used for fixing the lifting power resources---and winch 11, the vacant part in rear end are used for when the lifting weight, as far as possible near position to be lifted; Two roller type wheels respectively are equipped with in 13 times front and back of job platform, and wherein two wheels of front end assemble side by side, are used for guiding.Job platform 13 drives and relies on manpower; The utility model is in 13 times assemblings of job platform metal mat pin screw rod 14, firm job platform 13 usefulness when supplying hoisting operation.Firmly, pulsation-free supports very key of 13 pairs of later stages of job platform safety hoisting heavy.This pad pin screw rod 14 be fixed on the supporting use of nut on the job platform 13, can appropriateness go up and down, thereby regulate job platform 13 levelnesss.

More than show and described groundwork of the utility model and the advantage of principal character and the utility model; The technical personnel of the industry should be understood; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification sheets that the utility model just is described, under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications; These variations and improvement all fall in the utility model scope that requires protection, and the utility model requires protection domain to be defined by appending claims and equivalent thereof.

Claims

1. light-duty lifting mode boom crane; Comprise in joint under hydraulic chain lifting device, the crane arm, leading sheave, rack-and-gear lifting device, the crane arm that joint, suspension hook, cantilever hang on joint, the crane arm, manual chain block, electrical source of power case, winch, Pyatyi Working pedal, job platform, pad pin screw rod; It is characterized in that; Said hydraulic chain lifting device is positioned at joint right-hand end under the crane arm; Said crane arm joint left end down is equipped with leading sheave, saves on joint, the crane arm in joint, the crane arm under the crane arm to be connected in turn, and the joint middle part is equipped with the rack-and-gear lifting device in the said crane arm; Joint is connected with cantilever and hangs on the said crane arm; The top that said cantilever hangs is equipped with suspension hook, and said job platform and crane arm support through the Pyatyi Working pedal between the joint down, and said job platform right-hand end is equipped with pad pin screw rod.

2. light-duty lifting mode boom crane according to claim 1; It is characterized in that said winch is installed on the job platform, and be connected with leading sheave through steel rope; The electrical source of power case is installed on the said job platform, and said manual chain block is installed in and saves the bottom in the crane arm.