A kind of boom
Technical field
The utility model relates to engineering machinery field, specially refers to a kind of concrete placing boom.
Background technology
In building operations, concrete placing boom is a kind of common construction machinery, it with drag pump, Vehicle loaded pump to be used, can improve the efficient of concrete distributing effectively.
Concrete placing boom mainly is made up of boom system, turntable, slew gear, mounting platform, hydraulic system, electric-control system, column.The mounting platform of boom is used to place hydraulic system, electric-control system, and operation is provided, safeguards the space for operating personnel.Usually, the method for arranging of the mounting platform of boom mainly contains two kinds: one of which and column link together, and do not move with turntable during boom work; Its two and turntable link together and be arranged in the afterbody of boom system, move with turntable during boom work.
Method two is because the load of reasonable distribution boom more, and stress system is more rationally used widely.Syndeton commonly used between platform and the turntable is a diagonal member; Method of attachment commonly used is welding, and this syndeton of diagonal member is slit into several portions with the mounting platform spatial, and this not only is unfavorable for the placement of hydraulic system and electric-control system; And increased hydraulic oil container designed constraints in the hydraulic system; Thereby what cause mounting platform design must be bigger, and boom weight is increased, and external form is not attractive in appearance yet; Weld this connected mode and then be unfavorable for the dismounting and the transportation of boom.
According to the above, the technical problem that prior art exists is: the syndeton between mounting platform and the turntable is unreasonable, and method of attachment is incorrect.
The utility model content
The utility model technical problem to be solved is: to the deficiency of prior art, provide a kind of simple and reasonable, can guarantee that platform space do not cut apart, helps the layout of hydraulic pressure and electric-control system, the boom of dismounting convenient transportation.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of boom; Comprise column, turntable, mounting platform, boom system, hydraulic system and electric-control system; Said turntable is connected with column through slew gear; Said boom system is connected with turntable, and said hydraulic system and electric-control system are positioned in the said mounting platform, and said mounting platform and turntable removably connect through the junction plate assembly.
As further improvement to the utility model:
The side bar of said junction plate assembly one side and mounting platform is affixed, and the opposite side of junction plate assembly removably connects through securing member and said turntable.
Said junction plate assembly comprises many junction plates that laterally arrange and be located in each riser both sides of turntable respectively; One side of said junction plate is provided with draw-in groove; Junction plate is established on the side bar that is fixed in mounting platform through said draw-in groove card; The opposite side of junction plate is provided with two connecting holes, is located between the junction plate of the same riser of turntable both sides to connect through the said securing member that is arranged in the corresponding connecting hole.
Said junction plate structure triangular in shape, said draw-in groove and two connecting holes are located at respectively on leg-of-mutton three angles.
Three limits of said junction plate all are the circular-arc of indent, connect for arc transition between three limits.
Said connecting hole is through hole or screw, and said securing member is bearing pin or bolt.
Said junction plate is welded on the side bar of said mounting platform through said draw-in groove.
Compared with prior art, the advantage of the utility model is:
The boom of the utility model; Through being set on the side bar of mounting platform, special-purpose junction plate assembly and turntable removably connect; Simple in structure, easy to manufacture, can guarantee that the mounting platform space is not cut apart; Thereby the design and the layout that help hydraulic pressure, electric-control system can solve effectively that current boom mounting platform causes platform space not to be fully utilized because of syndeton design is unreasonable, platform is heavier, the problem of the inconvenient dismounting of boom and transportation.Junction plate in the utility model is isosceles triangular structure roughly; Three limits all are the circular-arc of indent; The side bar card that draw-in groove and mounting platform are set on its drift angle is established welding, on two base angles connecting hole is set and is connected through securing member with turntable, and its stability under loading is reliable and handsome in appearance.
Description of drawings
Fig. 1 is the main TV structure sketch map of the utility model boom;
Fig. 2 is the plan structure sketch map of the utility model boom;
Fig. 3 is the three-dimensional syndeton sketch map of mounting platform and junction plate assembly in the utility model;
Fig. 4 is that the master of mounting platform and junction plate assembly looks the syndeton sketch map in the utility model;
Fig. 5 is the side-looking syndeton sketch map of mounting platform and junction plate assembly in the utility model;
Fig. 6 is the structural representation of junction plate in the utility model;
The three-dimensional syndeton sketch map of mounting platform and turntable in Fig. 7 the utility model;
The master of mounting platform and turntable looks the syndeton sketch map in Fig. 8 the utility model;
The side-looking syndeton sketch map of mounting platform and turntable in Fig. 9 the utility model.
Marginal data
1, mounting platform; 2, junction plate assembly; 21, junction plate; 211, draw-in groove; 212, connecting hole; 3, securing member; 4, turntable; 5, boom system; 6, column; 7, hydraulic system; 8, electric-control system.
The specific embodiment
Below in conjunction with specific embodiment and Figure of description the utility model is further described.
Like Fig. 1~shown in Figure 2; The boom of the utility model; Comprise column 6, turntable 4, mounting platform 1, boom system 5, hydraulic system 7 and electric-control system 8, turntable 4 is connected with column 6 through slew gear, and boom system 5 is connected with turntable 4; Hydraulic system 7 is positioned in the mounting platform 1 with electric-control system 8, and mounting platform 1 removably connects through junction plate assembly 2 with turntable 4.Than diagonal member welding connection structure of the prior art; Mounting platform of the utility model and turntable removably connect through the junction plate assembly; The space that can guarantee mounting platform is not cut apart; Thereby help the design and the layout of hydraulic pressure, electric-control system, hydraulic system and electric-control system can freely be positioned on the mounting platform, and leave the space of enough confession operator Operation and maintenance.Simple and reasonable, platform space can be fully utilized, and can under the design constraint prerequisite of elimination syndeton to hydraulic oil container, design mounting platform littler, makes the weight saving of platform.Easy accessibility between mounting platform and the turntable is convenient to transportation.
Like Fig. 3~shown in Figure 9, in the present embodiment, link together through junction plate assembly 2 usefulness securing members 3 between mounting platform 1 and the turntable 4.The side bar of junction plate assembly 2 one sides and mounting platform 1 is affixed, and the opposite side of junction plate assembly 2 is provided with connecting hole 212, and removably connects with turntable 4 through the securing member 3 that is arranged in the connecting hole 212.Junction plate assembly 2 comprises the junction plate 21 of many turntable 4 each the riser both sides that laterally arrange and be located in respectively; Comprise four junction plates 21 in the present embodiment; Four junction plates 21 laterally arrange and are located in the both sides of two risers on the turntable 4 in twos respectively; Be that two risers on the turntable 4 are inserted in respectively in two junction plates that laterally arrange 21, a side of junction plate 21 is provided with draw-in groove 211, and junction plate 21 is established on the side bar that is fixed in mounting platform 1 through draw-in groove 211 cards; Preferably fixing through welding; The opposite side of junction plate 21 is provided with two connecting holes 212, correspondingly also respectively is provided with two connecting holes 212 on two risers of turntable 4, is located between the junction plate 21 of turntable 4 same riser both sides to be connected with turntable 4 risers through in corresponding connecting hole 212, wearing securing member 3.Connecting hole 212 is through hole or screw, and securing member 3 is bearing pin or bolt.In the present embodiment, connecting hole 212 is a through hole, and securing member 3 is a bearing pin, and an end of bearing pin is provided with locking member.
In the present embodiment, as shown in Figure 6, junction plate 21 is a triangular structure; Be preferably isosceles triangular structure roughly, its three limits all are the circular-arc of indent, connect transition for circular arc between three limits; Both the stressed of junction plate 21 can be improved, also material can be saved, handsome in appearance.Draw-in groove 211 is a rectangular channel, is located on the drift angle of isosceles triangle, and two connecting holes 212 are symmetrically set on two base angles of isosceles triangle.In the present embodiment, it is shorter slightly than the lower side that is connected in mounting platform 1 bottom that draw-in groove 211 is connected in the upper side edge on mounting platform 1 top, makes its stressed support more reliable and more stable, and the space of shared mounting platform still less.
The above only is the preferred implementation of the utility model, and the protection domain of the utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to the protection domain of the utility model.Should be pointed out that for those skilled in the art,, all should be regarded as the protection domain of the utility model in the some improvement and the retouching that do not break away under the utility model principle prerequisite.