A kind of derrick crane convenient for construction
Technical field
The utility model relates to design of tower crane technical field, specially a kind of derrick crane convenient for construction.
Background technique
Derrick crane abbreviation tower crane, also known as tower crane originate from West Europe, are mainly used for carrying article to high-altitude.Crane arm
Revolving crane mounted in towering tower body top.Working space is big, is mainly used for the vertical and water of material in housing construction
Flat conveying and the installation of building element.It is made of metal structure, operating mechanism and electrical system three parts.Metal structure includes tower
Body, swing arm and pedestal etc..There are raising, four parts of luffing, revolution and walking in operating mechanism.Because the crane arm of derrick crane compared with
It is long, although realizing a wide range of operation, work as the case where machine work is of long duration, and crane arm will appear certain bending, knot
Structure stability reduces, and there are some potential safety problemss.In addition, traditional suspension apparatus is that wirerope is directly connected to suspension hook, work as steel
Cord has the possibility of fracture because of load-bearing when excessive, cargo has the danger fallen.
Utility model content
The purpose of this utility model is to provide a kind of derrick cranes convenient for construction, to solve in above-mentioned background technique
The problem of proposition.
To achieve the above object, the utility model provides the following technical solutions: a kind of derrick crane convenient for construction, packet
Tower body and pedestal are included, the tower body is fixedly connected with pedestal, and pinnacle of a pagoda is arranged in the tower body upper end, and the tower body top is horizontally mounted
Crane arm, the pinnacle of a pagoda top are fixedly connected with crane arm by lifting pull rod, and the crane arm opposite direction is provided with counter-jib,
The pinnacle of a pagoda is fixedly connected with counter-jib by balancing pull rod, and balance weight is arranged in the counter-jib left end, and the tower body top is set
Set body panel is set, the stock is fixedly connected with set body panel, and one group of revolution dress is respectively set in the top and middle part of the tower body
It sets, and the slewing equipment at top is fixedly connected with tower body, the middle part slewing equipment is slidably connected with tower body, turns round described in two groups
Device includes revolving platform and revolving support, and two groups of revolving supports be it is concentric, the revolving support includes a pair of of socket peace
Telescopic rod is fixedly mounted in the inner ring in the outer ring and inner ring of dress, and the output end of telescopic rod is provided with and tower body clamping fixed
Hydraulic claw, support rod is set between the slewing equipment and crane arm, at least three groups of sliding blocks are provided on the crane arm,
It is connected with electric hoist below each sliding block, the lower end of multiple electric hoists is connected to fixation by different wirerope
The different parts of plate, and suspension hook is installed below fixed plate.
Preferably, the telescopic rod is planetary ball screw type electric pushrod or single pole double-action hydraulic push rod.
Preferably, the support rod is fixedly connected with the outer ring of lower part revolving support, and the other end of support rod and lifting
Arm is also to be fixedly connected.
Preferably, taper roller is uniformly installed between the inner ring and outer ring.
Compared with prior art, the utility model has the beneficial effects that the utility model on tower body by being arranged two groups
Concentric revolving support, and the revolving support of lower part is fixedly connected with crane arm with support rod, is realized when crane arm is around tower
When body center axis rotation, the support rod of lower part can also rotate simultaneously, and when tower body increases, the revolving support of lower part is in support rod
Same distance is slided under drive relatively upward, keeps angle constant, plays the role of keeping stable structure at any time.Secondly, setting
Wirerope lower end is all fixed in fixed plate by multiple groups electric hoist, in lift cargo, even if wherein one break, also not
It causes cargo to fall, improves safety, extend the service life of derrick crane.
Detailed description of the invention
FIG. 1 is a schematic structural view of the utility model;
Fig. 2 is the perspective view of crane arm in the utility model;
Fig. 3 is the top view of slewing equipment in the utility model.
In figure: 1 tower body, 2 pedestals, 3 pinnacles of a pagoda, 4 crane arms, 5 lifting pull rods, 6 counter-jibs, 7 balancing pull rods, 8 balance weights, 9
Cover body panel, 10 slewing equipments, 101 revolving supports, 102, revolving platform, 103 inner ring, 104 outer rings, 11 sliding blocks, 12 electric hoists,
13 wirerope, 14 fixed plates, 15 suspension hooks, 16 stocks, 17, telescopic rod, 18 support rods, 19 hydraulic claws.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the technical solution in the utility model, those of ordinary skill in the art are not making creative work premise
Under every other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of derrick crane convenient for construction, including
Tower body 1 and pedestal 2, tower body 1 are fixedly connected with pedestal 2, and pinnacle of a pagoda 3 is arranged in 1 upper end of tower body, and 1 top of tower body is horizontally mounted crane arm
4,3 top of pinnacle of a pagoda is fixedly connected with crane arm 4 by lifting pull rod 5, and 4 opposite direction of crane arm is provided with counter-jib 6, and pinnacle of a pagoda 3 is logical
Overbalance pull rod 7 is fixedly connected with counter-jib 6, and balance weight 8,1 top of tower body setting set body panel 9, set is arranged in 6 left end of counter-jib
Frame 16 is fixedly connected with set body panel 9, and one group of slewing equipment 10, and the revolution at top is respectively set in the top and middle part of tower body 1
Device 10 is fixedly connected with tower body 1, and middle part slewing equipment 10 is slidably connected with tower body 1, and two groups of slewing equipments 10 include that revolution is flat
Platform 102 and revolving support 101, and two groups of revolving supports 101 be it is concentric, revolving support 101 includes the outer of a pair of of socket installation
Telescopic rod 17 is fixedly mounted in inner ring 103 for ring 104 and inner ring 103, and the output end of telescopic rod 17 is provided with and 1 clamping of tower body
Fixed hydraulic claw 19 is arranged support rod 18, is provided at least three groups on crane arm 4 between slewing equipment 10 and crane arm 4
Sliding block 11, electric hoist 12 is connected with below each sliding block 11, and the lower end of multiple electric hoists 12 passes through different wirerope 13 and connects
The different parts in fixed plate 14 are connect, and the lower section of fixed plate 14 is equipped with suspension hook 15.
Further, telescopic rod 17 is planetary ball screw type electric pushrod or single pole double-action hydraulic push rod.
Further, support rod 18 is fixedly connected with the outer ring 104 of lower part revolving support 101, and support rod 18 is another
End is also to be fixedly connected with crane arm 4.
Further, taper roller is uniformly installed between inner ring 103 and outer ring 104.
Working principle: when derrick crane starts, tower body 1 is remained stationary, and drives crane arm 4 to surround by slewing equipment 10
Tower body 1 rotates, while the slewing equipment 10 of lower part also drives support rod 18 to rotate, and when tower body 1 increases, crane arm 4 drives branch
The slewing equipment 10 of 18 lower end of strut moves up identical height, and the telescopic rod 17 in inner ring 103 pushes forward hydraulic claw
19, it is fixed on it on tower body 1, keeps support rod 18 and 1 angle of tower body constant.The device is driven more using multiple electric hoists 12
A wirerope 13, to form stable suspended structure to suspension hook 15, and the fracture of any wirerope 13 will not all make suspension hook
The cargo lifted on 15 is fallen, to ensure the safety of lifting, has very high practical value.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.