CN87212324U - Dual purpose wet pump type concrete injector - Google Patents

Abstract

The utility model relates to a device for conveying and jetting concrete, which belongs to the technical field of construction machines. The utility model is mainly composed of a compressing type concrete conveying pump, a closed type powdery accelerating agent quantitatively adding device, an air compressor and a nozzle, wherein, a rotor of the compressing type concrete conveying pump is an integral structure; pressure-regulating devices are arranged at two ends of a rotor shelf; a squeezing roller is arranged on an adjusting device and can rotate freely. The utility model can serve not only as a concrete jetting machine, but also as a concrete transporter. The utility model can be widely used for coal, railways, metallurgy, civil architecture, military industry and other underground constructions.

Description

Dual purpose wet pump type concrete injector

The utility model is a kind of transmission and concrete transmission and spraying equipment, belongs to the technical field of building machinery.

Available coagulation soil sprays machinery rotor-type dry cement spraying machine and pot type, piston type, squash type wet method concrete sprayer; all there is the shortcoming that dust is big, springback capacity is high in these spraying machines when work; and complex structure, production capacity is low, the phenomenon of plugging takes place through regular meeting.Owing to these reasons, above-described these several concrete sprayer tools fail to be widely used in various construction occasions always.In addition, these concrete sprayers can only spray usefulness as concrete separately, can not use by the double as concrete conveying equipment, and therefore, its scope of application also is subjected to certain restriction.

Goal of the invention of the present utility model is exactly the problem at above existence, has manufactured and designed that a kind of simple in structure, production capacity is big, the dust springback capacity is low, but and the dual-purpose wet method pump formula concrete sprayer that uses of double as concrete conveyer.

Dual-purpose wet method pump formula concrete sprayer of the present utility model is mainly by squeezing concrete pump, the quantitative adding set of closed powder accelerator, and air compressor and nozzle are formed.Wherein, squeezing concrete pump is by hopper (1), vibrosieve (2), stirring vane (3), rotor rack (4), compression roller (5), pump case (6), retaining roller (7), extruding sebific duct (8), adjusting device (9) and pressure indicating graduation plate are formed, its frame mode is: a high resiliency is housed on the inwall of circular pump case (6), the extruding sebific duct (8) of high abrasion, this sebific duct is laid along the inner peripheral wall of pump case (6), the one end links to each other with hopper (1), the other end links to each other with nozzle (20) by carrier pipe, the rotor rack (4) of an integral body is housed in the centre of pump case (6), two adjusting devices (9) of regulating compression roller (5) thrust are housed at the symmetrical two ends of rotor rack (4), the adjusting device (9) that just is installed in compression roller (5) goes up and can freely rotate, on the excircle of compression roller (5), be fixed with one deck rubber ring, the pointer of indication compression roller (5) thrust size also is housed on adjusting device (9), and its scale plate (10) is on the two ends and the corresponding position of pointer of rotor rack (4).In addition, 4 retaining rollers (7) are housed also on rotor rack (4), these four retaining rollers are all made the steel bushing of round end, are enclosed within on the retaining roll shaft, and can freely rotate on the retaining roll shaft, and the effect of this retaining roller is to block extruding sebific duct (8), makes it outwards not move.Utilize adjusting device (9) that compression roller (5) is pressed in extruding sebific duct (8) on the inner peripheral wall of pump case (6) tightly, make between the extruding sebific duct (8) on compression roller (5) both sides obstructed, when rotor rack (4) when rotating in the direction of the clock, directly drive two compression rollers (5), alternately the concrete in the extruding sebific duct (8) is produced extruding and progradation, the conveyance conduit that concrete in the extruded tube (8) is pressed to outside the pump case (6) is delivered to nozzle (20) at last as squeezing toothpaste out of a tube, meanwhile, the extruding sebific duct (8) that is crushed is under the effect of elastic restoring force own, recover original section configuration, in this moment, this section has produced vacuum, because the effect of atmospheric pressure just sucks the concrete in the hopper (1) extruding sebific duct (8), to keep continuous feeding.

The quantitative adding set of closed powder accelerator is by pressure-equalizing pipe (11), valve A(12), charge door (13), case lid (14), Arch-Breaking Device (15), casing (16), quantitatively feeding serew (17), valve B(18), main pressure ventilation pipe (19) formed.Wherein casing (16) is an airtight casing, case lid (14) and charge door (13) can be opened, when reinforced finishing, just charge door (13) lid is closely sealed, Lower Half in casing (16) is installed an Arch-Breaking Device (15), the bottom connects a quantitative feeding serew (17) outside casing, between the exit of quantitative feeding serew (17) and main pressure ventilation pipe (19) a valve B(18 is installed), mobile with the control accelerating admixture.Be connected with a pipe that plays all pressure effects at the first half of casing (16) and lead to valve A(12), this valve A(12) the other end be communicated with main pressure ventilation pipe (19) by pressure-equalizing pipe (11).Valve-off A(12 before feeding intake) and valve B(18), open charge door (13) again, powder accelerator is added in the casing (16), afterwards that charge door (13) is airtight.Before start with valve A(12) and valve B(18) open, make it to be connected with main pressure ventilation pipe (19), form a pressure balanced closed system, when drive unit drives Arch-Breaking Device (15) and quantitative feeding serew (17) simultaneously, accelerating admixture in the casing (16) will enter main pressure ventilation pipe (19) quantitatively, brought to nozzle by wind at last, be subjected to spray plane with spraying to after concrete mixes here.

Adopt dual-purpose its advantage of wet method pump formula concrete sprayer of the present utility model to be, Dust Capacity is very little during this machine work, reduces more than 80 percent than available coagulation soil spraying machine, only at the nozzle place micro-dust is arranged.In addition, during this machine work, concrete springback capacity is also low, reduce more than 50 percent than present employed concrete sprayer, and simple in structure, production capacity is strong, and no plugging phenomenon takes place.Simultaneously, this machine also can be used as concrete conveyer and uses, and has not only improved labor productivity widely, but also has alleviated working strength of workers greatly.Especially in the construction of large-scale some specific conditions of construction neutralization, this function directly is pumped into narrow packing space (being between the groove protecting plate and crag in tunnel) with concrete, pump pressure can directly be pressurized filing to all spaces and crack with concrete, than originally using artificial filling operation, not only work efficiency height, and quality is good.This function is widely applicable for coal, metallurgy, railway, water power, and the construction occasion of various underground construction and civilian construction.

Fig. 1 is a general structure schematic diagram of the present utility model.

Fig. 2 is the schematic diagram of squeezing concrete pump of the present utility model.

Fig. 3 is the structural representation of the quantitative adding set of the utility model closed powder accelerator.

Embodiment of the present utility model is as follows:

Hopper (1) is made large and small young cone suitable for reading, end opening is communicated with extruding sebific duct (8), and a vibrosieve of installation suitable for reading (2) is to block bigger sand grains, a stirring vane (3) is installed at middle part at hopper (1), so that concrete stirs more evenly.Pump case (6) adopts the cast iron moulding by casting, rotor rack (4) is as a whole, its center of rotation and pump case (6) concentric, at the two ends of rotor rack (4) adjusting device (9) is installed respectively, each adjusting device is by two screw, on this adjusting device, also has a pointer, scale plate is on rotor rack (4), with the pressure size of indication compression roller to the extruding sebific duct, compression roller (5) is installed on the adjusting device, and it can make adjusted in concert and can freely rotate on adjusting device with adjusting device (9), is fixed with one deck polyamine fat rubber ring on the excircle of compression roller, not only wear-resisting, and squeezing effect is good.On rotor rack (4), also be fixed with four retaining rollers (7), these four retaining rollers are that the center distributes one every 90 ° of angles with the axle center of rotor rack, this retaining roller is made up of axle center and axle sleeve, the axle center is fixed on the rotor rack, axle sleeve is enclosed within on the axle center, the front end of axle sleeve is made the semicircle sphere, and axle sleeve can freely rotate on the axle center.Extruding sebific duct (8) adopts high resiliency, and the material of high abrasion is generally made the lining of sebific duct with chemical fibre, coat high abrasion, elastomeric rubber resin then.Valve A(12) and valve B(18) adopt spherical stop valve, charge door (13) and case lid (14) are all wanted and can be sealed up, all press with main pressure ventilation pipe (19) to guarantee that casing (16) is interior, quantitatively feeding serew (17) is installed in the outer bottom of casing, connect with casing, Arch-Breaking Device (15) is in the Lower Half in the casing, mainly prevent the arch camber in casing of accelerating admixture powder, valve B(18) is placed in the outlet of quantitative feeding serew and the door of main pressure ventilation pipe, valve A(12) a end is communicated with main pressure ventilation pipe by pressure-equalizing pipe (11), the other end is communicated with the first half of casing (16), just can form dual-purpose wet method pump formula concrete sprayer of the present utility model according to the above.

Claims (4)

1, a kind of concrete sprayer, by concrete pump, air compressor machine, accelerating admixture adding set and nozzle are formed, it is characterized in that concrete pump adopts squeezing concrete pump, the accelerating admixture adding set adopts the quantitative adding set of closed powder accelerator, wherein squeezing concrete pump is by hopper (1), vibrosieve (2), stirring vane (3), rotor rack (4), compression roller (5), pump case (6), retaining roller (7), extruding sebific duct (8), adjusting device (9) and pressure indicating graduation plate (10) are formed, rotor rack (4) is an overall structure, pressure-regulating device (9) is installed in the two ends of rotor rack (4), the adjusting device (9) that is installed in compression roller (5) goes up and can make adjusted in concert with adjusting device (9), the quantitative adding set of closed powder accelerator is by pressure-equalizing pipe (11), valve A (12), charge door (13), case lid (14), Arch-Breaking Device (15), casing (16), quantitative feeding serew (17), valve B (18), main pressure ventilation pipe (19) is formed, quantitatively feeding serew (17) is installed in the outer bottom of casing (16), valve B (18) is installed between the outlet and main pressure ventilation pipe (19) of quantitative feeding serew, the end of valve A (12) is connected with main pressure ventilation pipe (19) by pressure-equalizing pipe (11), the other end is connected with the first half of casing (16), and Arch-Breaking Device (15) is installed in the Lower Half in the casing (16).

2, according to the described concrete sprayer of claim 1, it is characterized in that being fixed with one deck polyamine fat rubber ring on the excircle of compression roller (5), compression roller (5) can be gone up in adjusting device (9) and freely rotate.

3, it is characterized in that having four retaining rollers (7) according to claim 1 or 2 described concrete sprayers on rotor rack (4), this retaining roller is made up of axle center and axle sleeve, and the front end of axle sleeve is made the semicircle sphere.

4, according to the described concrete sprayer of claim 1, it is characterized in that valve A(12) and valve B(18) spherical stop valve all adopted.

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