A kind of concrete pump
Technical field
The utility model relates to field of mechanical technique, particularly relates to a kind of concrete pump.
Background technique
Concrete pump is a kind of hydraulic pressure that utilizes, and with the machinery that concrete is carried continuously along pipeline, is mainly used in that the room is built, bridge and tunnel construction.Concrete pump has advantages such as flexibility is strong and widely applicable, has obtained using widely.
The rear end of concrete pump is provided with hopper, can carry out material loading for concrete pump through hopper, generally in operation process, can use concrete mixing and transporting car that concrete pump is carried out material loading, and concrete is leaked in the hopper.
Yet; The material loading height of concrete pump is certain in the existing technology, if run into some special operating modes (like some special tunnel construction etc.), concrete mixing and transporting car can't reach the desired height of material loading; Then can't carry out material loading, the material loading flexibility of concrete pump is very low.
The model utility content
The utility model embodiment provides a kind of concrete pump, the material loading height of its adjustable concrete pump, and to improve the flexibility of concrete pump material loading, for this reason, the utility model embodiment adopts following technological scheme:
A kind of concrete pump comprises pump body main body and at least three hoist cylinders, and the upper end of said hoist cylinder is fixed on the pump body main body, and the lower end of said hoist cylinder is equipped with the road wheel that can be supported in ground.
Preferably, also comprise outer sleeve and inner sleeve, wherein:
Outer sleeve is fixedly connected with the cylinder barrel of hoist cylinder;
Inner sleeve is fixedly connected with the piston rod of hoist cylinder;
Outer sleeve is sheathed on the outside of inner sleeve, is slidingly connected with inner sleeve.
Preferably, be fixed with mounting plate on the outer wall of outer sleeve, mounting plate is fixedly connected with pump body main body.
Preferably, the outer loop-shaped of the inner ring of the cross section of outer sleeve and the cross section of inner sleeve is identical, and is non-circular.
Preferably, the quantity of said hoist cylinder is four, and wherein two hoist cylinders are arranged at pump body main body rear side, and two other hoist cylinder is arranged at pump body main body front side;
The road wheel that is arranged at two hoist cylinders of pump body main body rear side is a directional wheel;
The road wheel that is arranged at two hoist cylinders of pump body main body front side is a deflecting roller.
Preferably, also comprise power plant and main hitch frame, the bottom of power plant is provided with wheel, and an end and the pump body main body of main hitch frame are hinged, and the other end and the power plant of main hitch frame are hinged.
Preferably, also comprise the link press span that is arranged between main hitch frame and the power plant, an end of main hitch frame and link press span is hinged, and the other end and the power plant of link press span are hinged;
The hinged rotatingshaft of main hitch frame and pump body main body hinged place and main hitch frame and link press span hinged place is the substantially horizontal axle;
The hinged rotatingshaft of link press span and power plant hinged place is the vertical direction axle.
Compared with prior art, the concrete pump that the utility model embodiment provides comprises pump body main body and at least three hoist cylinders, and the upper end of said hoist cylinder is fixed on the pump body main body, and the lower end of said hoist cylinder is equipped with the road wheel that can be supported in ground.Through stretching of hoist cylinder; Road wheel and the relative position of pump body main body on short transverse are changed; Road wheel is supported in ground makes pump body main body change with respect to the distance on ground, thus the material loading height of adjustable concrete pump, and then the flexibility that improves the concrete pump material loading.
Description of drawings
The structural representation of the concrete pump that Fig. 1 provides for the utility model embodiment;
The structural representation of the hoist cylinder in the concrete pump that Fig. 2 provides for the utility model embodiment, outer sleeve, inner sleeve, mounting plate, directional wheel;
The structural representation of the hoist cylinder in the concrete pump that Fig. 3 provides for the utility model embodiment, outer sleeve, inner sleeve, mounting plate, deflecting roller;
The structural representation of the concrete pump that comprises power plant that Fig. 4 provides for the utility model embodiment;
Fig. 5 is the plan view of Fig. 4;
Main hitch frame in the concrete pump that Fig. 6 provides for the utility model embodiment, the structural representation of link press span.
Marginal data
1, pump body main body 2, hoist cylinder
3, directional wheel 4, deflecting roller
5, outer sleeve 6, inner sleeve
7, mounting plate 8, power plant
9, main hitch frame 10, link press span
Embodiment
Be technological scheme and the effect that specifies the utility model, the utility model done detailed description below in conjunction with specific embodiment and accompanying drawing.
The utility model embodiment provides a kind of concrete pump; As shown in Figure 1; Comprise pump body main body 1 and at least three hoist cylinders 2, wherein: the upper end of hoist cylinder 2 is that cylinder barrel is fixed on the pump body main body 1, and the lower end of hoist cylinder 2 is that piston rod is equipped with the road wheel that can be supported in ground.Wherein, the support pump body main body 1 that the position of each road wheel needs can be stable, if the quantity of road wheel is three, three road wheels preferably distribute according to equilateral triangle so.Certainly, the cylinder barrel of hoist cylinder 2 also can be installed road wheel, and piston rod is fixedly connected with pump body main body 1.
In said structure, a plurality of hoist cylinders 2 can be flexible with identical speed simultaneously, can regulate the height of pump body main body 1 with respect to ground through the flexible of each hoist cylinder 2; When hoist cylinder extends, the height of pump body main body 1 will rise, when hoist cylinder shrinks; The height of pump body main body 1 will descend; Contact with ground until pump body main body 1, thus the material loading height also can reasonably be regulated, to adapt to various operating modes flexibly.
Concrete, road wheel can be that directional wheel 3 also can be a deflecting roller 4, for example, the situation of three road wheels can be provided with a deflecting roller 4 in pump body main body 1 front side, at two directional wheels 3 that are provided with of rear side correspondence.Preferably, the quantity of hoist cylinder 2 can be four, and wherein two hoist cylinders 2 are arranged at pump body main body 1 rear side, and two other hoist cylinder 2 is arranged at pump body main body 1 front side; The road wheel that is arranged at two hoist cylinders 2 of pump body main body 1 rear side is a directional wheel 3; The road wheel that is arranged at two hoist cylinders 2 of pump body main body 1 front side is a deflecting roller 4.The position of two directional wheels 3 can be symmetrical, lays respectively at pump body main body 1 bottom rear both sides, and the position of two deflecting rollers 4 can be symmetrical, lays respectively at both sides, bottom, pump body main body 1 front side.Adopt the structure of this four lines travelling wheel, promptly can guarantee the stable of pump body main body 1, pump body main body 1 can steadily be turned to.
Concrete, like Fig. 2, shown in Figure 3, also comprise outer sleeve 5 and inner sleeve 6, wherein: outer sleeve 5 is fixedly connected with the cylinder barrel of hoist cylinder 2; Inner sleeve 6 and the piston rod of hoist cylinder 2 are fixedly connected and are enclosed within the outside of cylinder barrel and piston rod; Outer sleeve 5 is sheathed on the outside of inner sleeve 6, is slidingly connected with inner sleeve 6.
Concrete, outer sleeve 5 can be installed on the supporting plate fixing on hoist cylinder 2 cylinder barrels through bolt.The mounting structure of inner sleeve 6, road wheel, piston rod can be: the connecting plate of inner sleeve 6 lower ends is provided with circular groove; Piston-rod lower end is provided with flange; Flange cooperates with circular groove; And through bolt, the connecting plate of inner sleeve 6 lower ends is connected through bolt with the wheel carrier top of road wheel.Adopt this inside and outside sleeve nested configuration can strengthen the intensity of hoist cylinder.
Preferably, the outer loop-shaped of the cross section of the inner ring of the cross section of outer sleeve 5 and inner sleeve 6 is identical, and is non-circular.Like this, when outer sleeve 5 is nested in inner sleeve 6 outsides, through its shape can constraining jacket tube 5 and inner sleeve 6 between rotation.This shape is preferably regular polygon (like square).
Preferably, be fixed with mounting plate 7 on the outer wall of outer sleeve 5, mounting plate 7 is fixedly connected with pump body main body 1.Because the relative cylinder barrel of volume of outer sleeve 5 is bigger, mounting plate 7 can strengthen the installation steadiness of rise-fall type road wheel on the sleeve 5 outside.
Preferably, like Fig. 4, Fig. 5, shown in Figure 6, concrete pump can also comprise power plant 8; And main hitch frame 9; The bottom of power plant 8 is provided with wheel, and wherein: an end and the pump body main body 1 of main hitch frame 9 are hinged, and the other end of main hitch frame 9 and power plant 8 are hinged.Power plant 8 move with pump body main body 1 through main hitch frame 9.Because main hitch frame 9 is hinged with pump body main body 1, power plant 8; When pump body main body 1 is gone up and down; Can not drive power plant 8 and go up and down, only the horizontal relative position between pump body main body 1, the power plant 8 is changed, so the energy consumption of lifting action be less.
Preferably, also comprise the link press span 10 that is arranged between main hitch frame 9 and the power plant 8, main hitch frame 9 is hinged with an end of link press span 10, and the other end of link press span 10 and power plant 8 are hinged; Main hitch frame 9 is the substantially horizontal axle with the hinged rotatingshaft of pump body main body 1 hinged place and main hitch frame 9 and link press span 10 hinged places; Link press span 10 is the vertical direction axle with the hinged rotatingshaft of power plant 8 hinged places.
Concrete, main hitch frame 9 is respectively arranged with hinged journal stirrup with pump body main body 1, and hinged through bearing pin, and bearing pin is fixed through pin; Main hitch frame 9 also is respectively arranged with hinged journal stirrup with link press span 10, and hinged through bearing pin, and bearing pin is fixed through pin; Link press span 10 also is respectively arranged with hinged journal stirrup with power plant 8, and hinged through bearing pin, and bearing pin is fixed through pin.The direction of the hinged rotatingshaft of several articulating points is selected vertical direction and substantially horizontal respectively, is pulled when advancing at pump body main body 1 and power plant 8, and each articulating point can rotate flexibly, and the flexibility of advancing is higher.
Among the utility model embodiment; Concrete pump comprises pump body main body and at least three hoist cylinders, and the upper end of said hoist cylinder is fixed on the pump body main body, and the lower end of said hoist cylinder is equipped with the road wheel that can be supported in ground; Thereby, the flexibility that can improve the concrete pump material loading.
The above only is the preferred implementation of the utility model; Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; Can also make some improvement and retouching, these improvement and retouching also should be looked the protection domain of the utility model.