CN202225298U

CN202225298U - Vehicle-mounted concrete mixing tank

Info

Publication number: CN202225298U
Application number: CN2011202105156U
Authority: CN
Inventors: 黄启明; 丘柳华; 张见斌; 吴锡毅
Original assignee: LIUZHOU CHENGLONG SPECIAL VEHICLE CO Ltd
Current assignee: LIUZHOU CHENGLONG SPECIAL VEHICLE CO Ltd
Priority date: 2011-06-21
Filing date: 2011-06-21
Publication date: 2012-05-23
Anticipated expiration: 2021-06-21

Abstract

The utility model discloses a vehicle-mounted concrete mixing tank which comprises a tank body helical blade and is arranged on a plane of a tank body rotating axis. The side surface of the helical blade intersects with the plane, so that a blade curve A can be formed; the inner side surface of a tank body intersects with the plane, so that a tank body intersecting line B can be formed; a crossing point C is formed by the blade curve A and the tank body intersecting line B which intersect with each other; the tank body intersecting line B is provided with a normal D at the crossing point C; included angles G formed between tangent lines of all points of tangency of the blade curve A on the plane and the normal D are reduced along with the increment of the distance between the points of tangency and the rotation center of the tank body; and the included angles G are within the range of 10-13 degrees. Compared with the prior art, the vehicle-mounted concrete mixing tank solves the problem that the existing vehicle-mounted concrete mixing tank is poor in the performance of mixing concrete, and is capable of ensuring the concrete to be evenly mixed, reducing the mixing resistance, improving the mixing efficiency and guaranteeing the concrete to be smoothly discharged.

Description

Vehicle-mounted concrete drums

Technical field

The utility model relates to construction machinery equipment and makes the field, and especially a kind of being contained in is used for splendid attire and stirs institute and adorn concretely on the vehicle chassis, and inside is provided with the tank body of helical blade.

Background technology

Existing vehicle-mounted concrete drums need stir the concrete in the agitator tank in vehicle shipment concrete process, and this stirring is under the rotation of vehicle-mounted concrete drums, relies on the helical blade of dress in the tank body to make concrete obtain stirring; When this haulage vehicle is delivered to concrete of its fortune dress the job location and need be unloaded concrete, also be under the rotation of vehicle-mounted concrete drums, the helical blade in relying on jar drives a concrete and exports out from discharging opening.Therefore, the setting of tank body position is very big to concrete mixing effect and discharging performance impact with the structure of jar internal helical blades and tank body installation.For concrete is uniformly mixed in tank body; And it is lower to make whole locomotive body in transportation, obtain a center of gravity; The structure that walking stability is good, the tank body of vehicle-mounted concrete drums need rotate it on vehicle chassis, and the axis of rotation of tank body is obliquely installed.To pack into concrete and in the concrete process of vehicles drive of vehicle-mounted concrete drums; Vehicle-mounted concrete drums need just change; Driving concrete through the helical blade on the inner tank wall flows downward in jar; When this part concrete that flows downward drops to a certain degree, make it and jar inwall and jar in when forming the position relation of toppling over and the power that under the concrete gravity effect, forms downward slippage between the helical blade that drives above the ultimate shearing stress of concrete itself, this part concrete is with downward landing; This part concrete of landing is driven the concrete that upwards flows with the below by helical blade to be mixed, and achieves even stirring; When vehicle-mounted concrete drums needed discharging, vehicle-mounted concrete drums then needed counter-rotating, let jar inner concrete discharging opening to the tank body upper end under the compound action of the gravity and the activation force of jar internal helical blades flow out.Therefore; The mounting structure of vehicle-mounted concrete drums and its internal helicoid blade is for the whipping performance of jar inner concrete; The discharging performance impact is very big, and especially the size of the established angle of the bus of helical blade and inner tank wall normal is to whipping performance, and the discharging performance impact is very big.

Vehicle-mounted concrete drums in the prior art; The established angle of helical blade in its jar on inner tank wall is vertical basically; Be that the bus of spiral blade hangs down and to overlap with the normal of this bus with the tank body intersection basically, the vehicle-mounted concrete drums whipping performance of this structure is relatively poor, promptly will make all even mixing fully of its inner concrete acquisition; Its mixing cycle is longer, and it is bigger to drive energy.

Summary of the invention

The utility model provides a kind of vehicle-mounted concrete drums, and it can solve the existing vehicle-mounted concrete drums problem not good to concrete whipping performance.

In order to address the above problem; The technical scheme that the utility model adopts is: this vehicle-mounted concrete drums includes tank body and the helical blade that is welded on this inner tank wall, on the plane of crossing said tank body axis of rotation; Said helical blade side and said Plane intersects form the blade curve A; Said tank body medial surface and said Plane intersects form tank body intersection B, and blade curve A and tank body intersection B intersect formation intersection point C, and said tank body intersection B has normal D at intersection point C place; The tangent line at said blade curve A each point of contact on said plane and the angle G of said normal D are along with the said point of contact and the said tank body centre of gyration diminish apart from increase, and the numerical value of said angle G is 10 °～13 °.

In the technical scheme of above-mentioned vehicle-mounted concrete drums, scheme can also be more specifically: said stirring vane is connected to wear-resisting rib towards the edge joint weld of tank body axis of rotation; Said tank body includes the inner cone tube; Middle tube; Rear conical-tube is welded to each other the part of formation, all is being welded with the auxiliary blade of retaining on the material channel that forms between the said helical blade on the inwall of said inner cone tube and said rear conical-tube, and these auxiliary blades are provided with a plurality of through holes.

Owing to adopted technique scheme, the utility model compared with prior art has following beneficial effect:

1, the mounting structure of helical blade and tank body, lifting can have been arranged the very much uniformity that stirs of concrete prevents that segregation phenomenon from appearring in concrete, can guarantee the smooth and easy of concrete output again; The auxiliary blade that on the inwall of inner cone tube and said rear conical-tube, increases pure agitating function has further promoted the smoothness of the inhomogeneity concrete output of concrete stirring;

2, blade increases the abrasionproof rib again on wear-resisting steel basis, has improved the durability of stirring vane greatly.

Description of drawings

Fig. 1 is the front view of the utility model embodiment;

Fig. 2 is the vertical view of the utility model embodiment;

Fig. 3 is the cutaway view at E-E place among Fig. 2;

Fig. 4 be among Fig. 3 F to view.

The specific embodiment

Implement the utility model is done further to detail below in conjunction with accompanying drawing:

Fig. 1 is to the vehicle-mounted concrete drums of basis shown in Figure 4, and its tank body 1 is mainly by inner cone tube, middle conical tube; Rear conical-tube and end socket welding constitute; Two helical blades 2 that have been welded on tank body 1 inwall, every helical blade 2 meets following condition with the relative position relation that tank body 1 welding forms: one cross tank body 1 axis of rotation the plane, promptly on the section plane among Fig. 1; The side of helical blade 2 and section plane intersect formation blade curve A; The medial surface of tank body 1 and section plane intersect formation tank body intersection B, and blade curve A and tank body intersection B intersect formation intersection point C, and tank body intersection B has normal D at intersection point C place; The tangent line at blade curve A each point of contact on section plane and the angle G of normal D diminish along with the increase of the centre of gyration distance of said point of contact and tank body 1, and the number range of angle G is 10 °～13 °.

Each sheet helical blade 2 all is welded with wear-resisting rib 3 towards the edge of tank body axis of rotation; Inner cone tube at tank body 1 partly and on the inwall of rear conical-tube part respectively is welded with the auxiliary blade 4 of two retainings on formed material channel between the helical blade 2; All be provided with a plurality of through holes as spout hole on these auxiliary blades 4; Through setting up auxiliary blade 4; Can increase the region to concrete agitating function, make concrete stir more evenly.

Claims

1. vehicle-mounted concrete drums; Include tank body and the helical blade that is welded on this inner tank wall; It is characterized in that: on the plane of crossing said tank body axis of rotation, said helical blade side and said Plane intersects form the blade curve A, and said tank body medial surface and said Plane intersects form tank body intersection B; Blade curve A and tank body intersection B intersect formation intersection point C, and said tank body intersection B has normal D at intersection point C place; The tangent line at said blade curve A each point of contact on said plane and the angle G of said normal D are along with the said point of contact and the said tank body centre of gyration diminish apart from increase, and the numerical value of said angle G is 10 °～13 °.

2. vehicle-mounted concrete drums according to claim 2 is characterized in that: said stirring vane is connected to rib towards the edge joint weld of tank body axis of rotation.

3. vehicle-mounted concrete drums according to claim 1 and 2; It is characterized in that: said tank body includes the inner cone tube; Middle tube; Rear conical-tube is welded to each other the part of formation, all is being welded with the auxiliary blade of retaining on the material channel that forms between the said helical blade on the inwall of said inner cone tube and said rear conical-tube, and these auxiliary blades are provided with a plurality of through holes.