CN201671345U - Pumping device and allocating mechanism thereof and concrete pumping vehicle - Google Patents
Pumping device and allocating mechanism thereof and concrete pumping vehicle Download PDFInfo
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- CN201671345U CN201671345U CN2010202274681U CN201020227468U CN201671345U CN 201671345 U CN201671345 U CN 201671345U CN 2010202274681 U CN2010202274681 U CN 2010202274681U CN 201020227468 U CN201020227468 U CN 201020227468U CN 201671345 U CN201671345 U CN 201671345U
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Abstract
The utility model discloses a pumping device and allocating mechanism thereof and a concrete pump vehicle, the allocating mechanism of the pumping device comprises a first wearing-proof plate and a second wearing-proof plate, the working face of the first wearing-proof plate and the working face of the second wearing-proof plate are in rotatable matching; the first wearing-proof plate is also provided with a discharge port and a charge port, the second wearing-proof plate has a plurality of material transporting ports; each material transporting port can be communicated with the charge port and the discharge port; in the rotation direction, the arc degree of occupied by the discharge port is larger than the arc degree occupied by a blind plate part between any two material transporting ports. The allocating mechanism of the pumping device can enable the discharge port to be communicated with at least one material transporting port at any time, accordingly, the material pumping can be performed at any time to enable the pumping device to continuously pump sticky matters such as concretes outwardly, thereby eliminating the problem of break pumping time in prior art, and greatly decreasing the pulsating impact generated by the pulse type flowing of the concrete in the transporting tube.
Description
Technical field
The utility model relates to dope technology such as a kind of pumping of concrete or other, and particularly a kind of distributor gear of pumping installations comprises the pumping installations of this distributor gear, comprises the concrete mixer of this pumping installations.
Background technology
Concrete mixer is current application one of concreting machinery widely.Concrete mixer generally comprises pumping installations and boom system.Pumping installations generally comprises hopper again, carries cylinder, distributing valve; Boom system comprises jib and carrier pipe, and jib comprises more piece by being laterally hinged with the joint arm that the axle order is hinged and connected, and carrier pipe comprises the pipeline that more piece links to each other in proper order, and pipeline is separately fixed on the joint arm.Hopper is used to deposit concrete; Distributing valve can carry out the state conversion under oscillating oil cylinder drives, make in the predetermined very first time and carry cylinder to be connected with hopper, makes in the second predetermined time and carries cylinder to be connected with the carrier pipe of boom system.Carry the piston of cylinder can under Driven by Hydraulic Cylinder, carry out stretching motion; When carrying cylinder to be connected with hopper, contract after making the piston of conveying cylinder, suck an amount of concrete, finish suction; When carrying cylinder to be connected with the carrier pipe of boom system, make and carry the piston of cylinder overhanging, the concrete mud that sucks is pressed in the carrier pipe, carry out stock, and concrete is applied predetermined pressure, concrete is flowed along carrier pipe; Repeatedly suction and stock can make concrete arrive the carrier pipe end, and flow out from carrier pipe is terminal, arrive predetermined concrete work position.Change the position relation between the joint arm in the jib, can change the position of jib end, thereby make concrete arrive the precalculated position, make things convenient for the carrying out of concrete pouring operation.
According to the difference of concrete structure, the distributing valve of pumping installations can be skirt valve, C shape valve, slide valve or S valve.Though the specific constructive form of distributing valve exists different, but its operating principle is basic identical, both its basic function was to change by state, make pumping installations can carry out suction and stock in a predetermined manner repeatedly, and then pumping of concrete discontinuously, concrete discontinuous in carrier pipe is flowed.
Please refer to Fig. 1, this figure is in the prior art, the principle schematic that the discontinuous of concrete in carrier pipe flows.Concrete flowing velocity V is that variable carries out cyclically-varying with the time T, and during T1, under the pressure effect of carrying cylinder to produce, concrete flows in carrier pipe with speed V; During T2, distributing valve carries out state conversion, carries cylinder to commutate, and carries out suction simultaneously, for the stock of next process provides prerequisite; In the suction process, pumping installations stops outside stock, and the concrete in the carrier pipe stops to flow, and forms pumping blanking time; After suction finishes, the stock process that enters following one-period.So carry out cyclically-varying, form the discontinuous pumping, concrete discontinuous in carrier pipe is flowed.
Current, in order to shorten pumping blanking time, improve the transmission and concrete transmission amount of pumping installations, pumping installations is provided with two usually and carries cylinders, and two are carried cylinders also is to carry out suction and stock by a distributing valve; When carrying the cylinder suction for one, another carries cylinder pump material, and makes two to carry cylinders to carry out suction and stock in turn, and then shortens pumping break time.But when carrying cylinder to carry out the state conversion, will commutate equally, distributing valve also will carry out the state conversion, thereby can not eliminate pumping blanking time fully.
Discontinuous pumping and discontinuous flow and must produce the pulsed impact to pumping installations, boom system, make boom system produce corresponding vibration.In addition, for transmission and concrete transmission is arrived far away or higher position, boom system is the elongated rod shape structure on the whole; The vibration that the boom system of elongated rod shape structure also can produce boom system is amplified, and terminal the generation very significantly of jib vibrated.The frequency that the pulsed that produces when the compartment pumping of pumping installations is impacted is approaching with the eigentone of boom system or when equating, boom system will produce strong resonance, and under specific circumstances, the Oscillation Amplitude of jib end may reach more than the 1m; Boom system produces amplitude, the excessive vibration of intensity not only makes concrete be difficult to arrive the precalculated position, influences the quality of concrete work and carries out smoothly, also can cause the fatigue damage of pumping installations, boom system, and then influence the application life of concrete mixer.
In order to reduce the Oscillation Amplitude of jib end, stabilize the vibration of boom system, the technical scheme of stabilizing the boom system vibration is disclosed respectively as JP3040592B2, CN1486384A and CN1932215A.The disclosed technical scheme of these patent documentations only is to start with from the angle of control jib attitude with containing the amplitude that the jib tip vibration produces, and can not reduce the vibration source of boom system vibration; Because the discontinuous pumping is to cause one of greatest factor of boom system vibration, and the disclosed technical scheme of above-mentioned patent documentation can't reduce because the concrete discontinuous that the discontinuous pumping produces flows and vibration, therefore, can't fundamentally solve the problem of boom system vibration.In order to reduce the vibration of pumping installations, present disclosed technology has the passive type damping technology of stabilizing the jib vibration, commutating period, the buffering that attenuating distributing valve tilt cylinder impacts, shortens oscillating oil cylinder to carry cylinder reversing impact or the like technology; Though above-mentioned technology is reducing to have obtained certain effect aspect the jib vibration,, all can not solve owing to the discontinuous pumping makes the concrete discontinuous impact shock problem that produces that flows.
Therefore, how to eliminate the discontinuous pumping and concrete continuous ground is flowed, reducing or eliminating the living impact of concrete discontinuous flow movable property is the technical barrier that current art technology people faces.
The utility model content
At above-mentioned technical barrier, first purpose of the present utility model is, a kind of distributor gear of pumping installations is provided, and eliminates the pumping blanking time in the pumping process.
Providing on the basis of above-mentioned distributor gear, second purpose of the present utility model is, a kind of pumping installations is provided, to eliminate the vibration that produces owing to the discontinuous pumping.
Providing on the basis of above-mentioned pumping installations, the 3rd purpose of the present utility model is, a kind of concrete mixer also is provided, to eliminate the vibration that boom system produces owing to the discontinuous pumping.
The distributor gear of the pumping installations that the utility model provides comprises first wearing plate and second wearing plate, and the work plane of described first wearing plate is with second the wearing plate work plane is rotatable cooperates; Described first wearing plate also has at least one discharging opening and at least one material sucking port, and described second wearing plate has at least three defeated material mouths; In rotary course, described defeated material mouth is connected with discharging opening and material sucking port by predefined procedure; On described direction of rotation, the radian that the radian that described discharging opening takies partly takies greater than the blind plate between adjacent any two described defeated material mouths.
Preferably, on described direction of rotation, the radian that the radian that described material sucking port takies partly takies greater than the blind plate between adjacent any two described defeated material mouths.
Preferably, on described direction of rotation, described second wearing plate has equally distributed at least three defeated material mouths.
Preferably, on described direction of rotation, the radian that described discharging opening takies is at least 120 degree.
Preferably, on described direction of rotation, the radian that the radian that the blind plate between described material sucking port and the discharging opening partly takies takies greater than arbitrary material transport hole.
Preferably,, described discharging opening is or/and material sucking port is the waist shape structure of extending along direction of rotation.
Preferably, described waist shape structure is the annulus section that the semicircle transition is passed through at two ends; The radius of described defeated material mouth equates with the radius of the two ends semicircle of described waist shape structure.
Optionally, described waist shape structure is the annulus section that two ends have straight flange; Described defeated material mouth has the annulus section of straight flange for two ends.
In order to realize above-mentioned second purpose, the pumping installations that the utility model provides comprises discharge nozzle and at least three conveying cylinders, also comprise above-mentioned any distributor gear, described material sucking port is connected with hopper, described discharging opening is connected with discharge nozzle one end, and described conveying cylinder is connected with a described defeated material mouth respectively.
Preferably, also comprise feed pipe, described feed pipe one end is connected with the bottom of hopper, and the other end is connected with material sucking port.
In order to realize above-mentioned the 3rd purpose, the concrete mixer that the utility model provides comprises boom system and pumping installations, above-mentioned any pumping installations of described pumping installations, and the other end of described discharge nozzle is connected with the carrier pipe of described boom system.
With utilize distributing valve of the prior art and compare, in the distributor gear of the pumping installations that the utility model provides, because the radian that the radian that discharging opening takies partly takies greater than the blind plate between adjacent any two described defeated material mouths, like this, discharging opening can be connected with at least one defeated material mouth at any time, utilizing should defeated material mouthful again, just can carry out stock at any time, makes the pumping installations can the outside pumping of concrete in continuity ground; Therefore, utilize this distributor gear, just can eliminate the pumping break time that the prior art distributing valve causes, eliminate the vibration that produces owing to the discontinuous pumping, and then it is mobile to reduce even eliminate the pulsed of concrete in carrier pipe significantly.
In further technical scheme, on described direction of rotation, the radian that the radian that described material sucking port takies partly takies greater than the blind plate between any two described defeated material mouths.This technical scheme not only can realize the continuity of stock, can also realize the suction connectivity, and then can improve suction efficient greatly, for stock provides good prerequisite, improves the pumping efficiency of pumping installations; Simultaneously, can also avoid because suction is interrupted the impact that the boom system to pumping installations, concrete mixer causes, and then eliminate the vibration that produces owing to the discontinuous pumping, improve the application life of concrete mixer and the stability of pouring practice significantly.
In further optimal technical scheme, described discharging opening and material sucking port are the waist shape structure of extending along direction of rotation.The distributor gear that utilizes this technical scheme to provide, before and after the state conversion, defeated material mouth and material sucking port, or passage section can change in the mode of gradual change between defeated material mouth and the stock mouth, this gradual change type changes and can adapt with the stretching speed gradual change of carrying cylinder commutation front and back, in the suction process, can avoid or reduce the suction of conveying cylinder, when stock, can reduce the compression shock of high pressure to distributor gear.
Because distributor gear has above-mentioned technique effect, the pumping installations that comprises above-mentioned wear-resisting fit structure that provides also has the corresponding techniques effect, can eliminate pumping blanking time, reduces the vibration that produces in the pumping process.Equally, the concrete mixer that provides also has corresponding technique effect.
Description of drawings
Fig. 1 is in the prior art, the principle schematic that the discontinuous of concrete in carrier pipe flows;
Fig. 2 is the sectional structure schematic diagram of the concrete pumping device master apparent direction that provides of the utility model embodiment one;
Fig. 3 is an A-A sectional structure schematic diagram among Fig. 2;
Fig. 4 is a B-B sectional structure schematic diagram among Fig. 2;
The structural representation of distributor gear when Fig. 5-the 1st, concrete pumping device first state that embodiment one provides;
The structural representation of distributor gear when Fig. 5-the 2nd, concrete pumping device second state that embodiment one provides;
Fig. 5-the 3rd, the structural representation of distributor gear during the concrete pumping device third state that embodiment one provides;
The structural representation of distributor gear when Fig. 5-the 4th, concrete pumping device the 4th state that embodiment one provides;
The structural representation of distributor gear when Fig. 5-the 5th, concrete pumping device the 5th state that embodiment one provides;
The structural representation of distributor gear when Fig. 5-the 6th, concrete pumping device the 6th state that embodiment one provides;
The structural representation of distributor gear when Fig. 5-the 7th, concrete pumping device the 7th state that embodiment one provides;
The structural representation of distributor gear when Fig. 5-the 8th, concrete pumping device the 8th state that embodiment one provides;
Fig. 6 is the structural representation of second kind of distributor gear providing of the utility model;
Fig. 7 is the structural representation of the third distributor gear of providing of the utility model;
Fig. 8 is the structural representation of a kind of concrete pumping device of providing of the utility model embodiment two;
Fig. 9 is the structural representation of the 4th kind of distributor gear providing of the utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in detail, the description of this part only is exemplary and explanatory, should any restriction not arranged to protection domain of the present utility model.Should be noted that: though following be that example is described the utility model with the pumping of concrete, the technical scheme that the utility model provides also can be applied to similarly other dopes of pumping and concrete.
For the convenience of describing, in to the concrete pumping unit describe, the structure and the operating principle of the distributor gear of concrete pumping device is described, no longer separately distributor gear is described and describes.
Please refer to Fig. 2, this figure is the sectional structure schematic diagram of the concrete pumping device master apparent direction that provides of the utility model embodiment one.This concrete pumping device comprises feed pipe 2, discharge nozzle 1, carries cylinder 9, carries cylinder 10, carries cylinder 11 and distributor gear 7.For the convenience of describing, also show hopper 3 among the figure with double dot dash line.
Distributor gear 7 comprises first wearing plate 71 and second wearing plate 72, and in this example, first wearing plate 71 and second wearing plate 72 are respectively platy structure, and have predetermined anti-wear performance.With Fig. 2 is reference, first wearing plate, 71 right flanks are work plane, the left surface of second wearing plate 72 is a work plane, the rotatable cooperation of work plane of first wearing plate, 71 work planes and second wearing plate 72, form wear-resistant surface, second wearing plate 72 can be rotated with respect to first wearing plate 71 under suitable drive mechanism, and rotation is X-X; In rotary course, the work plane of two parts keeps in touch and seals.In this example, the work plane of first wearing plate 71 and second wearing plate 72 is respectively the plane, and the wear-resistant surface of formation also is the plane, and vertical with axis X-X; Convenience for location or driving also can be set to the conical surface by wear-resistant surface, can also be set to other shape that matches or structures.In order to keep the sealing performance between the wear-resistant surface, between first wearing plate 71 and second wearing plate 72, also be provided with sealing ring 6.
Please refer to Fig. 3 and Fig. 4, Fig. 3 is an A-A sectional structure schematic diagram among Fig. 2, and Fig. 4 is a B-B sectional structure schematic diagram among Fig. 2.First wearing plate 71 also has discharging opening 5 and material sucking port 4, and in this example, discharging opening 5 and material sucking port 4 are the waist shape structure of extending along direction of rotation, and waist shape structure is the annulus section that the semicircle transition is passed through at two ends; Described annulus section is the part of ring surface, and the part between discharging opening 5 and the material sucking port 4 forms the blind plate part.Second wearing plate 72 has three defeated material mouths 8; Fail for three and expect that mouth 8 is circular, fail the radius of expecting mouth 8 and equate substantially, fail formation blind plate part between the material mouth 8 with the radius of waist shape structure two ends semicircle.Preferably, two waist shape structure centre lines equate with distance between the axis X-X, and the distance between the center that makes defeated material mouthfuls 8 and the axis X-X and each waist shape structure centre line equate with distance between the axis X-X, so that the annular section of defeated material mouth 8 inswept formation covers discharging opening 5 and material sucking port 4 fully.
As shown in the figure, on described direction of rotation, establishing the radian that discharging opening 5 takies is a, the radian that material sucking port 4 takies is b, the radian that blind plate between material sucking port 4 and the discharging opening 5 partly takies is c, and failing material mouthful 8 radians that take is d, the radian e that the blind plate between two adjacent defeated material mouths 8 partly takies.The radian e that the radian a that discharging opening 5 takies partly takies greater than the blind plate between adjacent any two defeated material mouths 8.Preferably, make mouthful 8 evenly distributions of defeated material, the radian a that discharging opening 5 takies is 120 degree, and the radian b that material sucking port 4 is taken also is 120 degree; Making blind plate between material sucking port 4 and the discharging opening 5 partly take radian e is 60 degree, makes material sucking port 4 and discharging opening 5 symmetric arrangement.
With reference to figure 2, feed pipe 2 one ends link to each other with hopper 3 again, and the other end is connected with material sucking port 4; Preferably, feed pipe 2 is a bend pipe, and an end protrudes upward, and links to each other with the bottom of hopper 3.One end of discharge nozzle 1 is communicated with the carrier pipe (not shown) of boom system, and the other end is connected with discharging opening 5. Carry cylinder 9,10,11 and second wearing plate, 72 relative fixed, and be connected with a defeated material mouth 8 respectively.Flow for the ease of concrete, feed pipe 2 is set to arcuate structure with discharge nozzle 1.
Below be starting point with state shown in Figure 4, the course of work of above-mentioned concrete pumping device is described.
Please refer to Fig. 5-1, this figure be embodiment one provide concrete pumping device first state time distributor gear structural representation.With reference to shown in figure 2 arrows, under this state, carry cylinder 9 and carry the piston of cylinder 11 to move backward simultaneously; At this moment, carry cylinder 9 and conveying cylinder 11 to be connected with material sucking port 4 simultaneously by corresponding defeated material mouth 8, hopper 3 interior concrete enter into by corresponding two defeated material mouths 8 to be carried cylinder 9 and carries in the cylinder 11, carries cylinder 9 and carries cylinder 11 to carry out suction simultaneously.Simultaneously, carry the piston advances forward of cylinder 10, carry cylinder 10 to be connected with discharging opening 5, carry the concrete in the cylinder 10 to pass through discharging opening 5 outside pumping of concrete, carry out stock by corresponding defeated material mouth 8.Second wearing plate 72 of distributor gear 7 continues rotation with W direction in scheming, carry cylinder 10 to keep outside stock, carry cylinder 9 and carry cylinder 11 to keep suction, simultaneously, carry the passage section between cylinder 9 and the material sucking port 4 to reduce gradually, carry the passage section between cylinder 11 and the material sucking port 4 to increase gradually; Passage section is reduced to zero between conveying cylinder 9 and material sucking port 4, when the passage section between conveying cylinder 11 and the material sucking port 4 is increased to maximum, enters second state.
Please refer to Fig. 5-2, this figure be embodiment one provide concrete pumping device second state time distributor gear structural representation.Under second state, carry cylinder 10 and carry cylinder 11 to carry out stock and suction respectively; According to predetermined job requirement, carry cylinder 9 to stop suction, and can commutate, think that the stock of NextState is prepared.Second wearing plate 72 continues rotation with W direction in scheming, and each carries cylinder to keep above-mentioned state, carrying cylinder 9 to begin to be connected with discharging opening 5, when the passage section between conveying cylinder 10 and the discharging opening 5 begins to reduce, enters the third state.
Please refer to Fig. 5-3, this figure be embodiment one provide the concrete pumping device third state time distributor gear structural representation.When the third state, carry the passage section between cylinder 11 and the material sucking port 4 to remain unchanged, carry out suction constantly; Carry the passage section between cylinder 9 and the discharging opening 5 to increase gradually, carry cylinder 9 that the concrete of its suction is outwards extruded, carry out stock; Passage section reduces gradually between conveying cylinder 10 and the discharging opening 5, and keeps outside stock.Carrying the passage section between cylinder 9 and the discharging opening 5 to be increased to maximum, when the passage section between conveying cylinder 10 and the discharging opening 5 is reduced to zero, enter the 4th state.
Please refer to Fig. 5-4, this figure be embodiment one provide concrete pumping device the 4th state the time distributor gear structural representation.Under the 4th state, carry cylinder 9 and carry cylinder 11 to carry out stock and suction respectively; According to predetermined job requirement, carry cylinder 10 to stop stock, and can commutate, think that the suction of NextState is prepared.Second wearing plate 72 continues rotation with W direction in scheming, and each carries cylinder to keep above-mentioned state, carrying cylinder 10 to begin to be connected with material sucking port 4, when the passage section between conveying cylinder 11 and the material sucking port 4 begins to reduce, enters the 5th state.
Please refer to Fig. 5-5, this figure be embodiment one provide concrete pumping device the 5th state the time distributor gear structural representation.Under this state, carry cylinder 10 and carry cylinder 11 to carry out suction, carry cylinder 9 to carry out stock.Second wearing plate 72 of distributor gear 7 continues rotation with W direction in scheming, and carries the passage section between cylinder 11 and the material sucking port 4 to reduce gradually, carries the passage section between cylinder 10 and the material sucking port 4 to increase gradually; Passage section is reduced to zero between conveying cylinder 11 and material sucking port 4, when the passage section between conveying cylinder 10 and the material sucking port 4 is increased to maximum, enters the 6th state.
Please refer to Fig. 5-6, this figure be embodiment one provide concrete pumping device the 6th state the time distributor gear structural representation.Under this state, carry cylinder 9 and carry cylinder 10 to carry out stock and suction respectively; According to predetermined job requirement, carry cylinder 11 can carry out commutation process, think that the stock of NextState is prepared.Second wearing plate 72 continues rotation with W direction in scheming, and carrying cylinder 11 to begin to be connected with discharging opening 5, when the passage section between conveying cylinder 9 and the discharging opening 5 begins to reduce, enters the 7th state.
Please refer to Fig. 5-7, this figure be embodiment one provide concrete pumping device the 7th state the time distributor gear structural representation.When this state, carry the passage section between cylinder 10 and the material sucking port 4 to remain unchanged, carry out suction constantly; Carry the passage section between cylinder 11 and the discharging opening 5 to increase gradually, carry out stock constantly; Passage section reduces gradually between conveying cylinder 9 and the discharging opening 5, and keeps outside stock.Carrying the passage section between cylinder 11 and the discharging opening 5 to be increased to maximum, when the passage section between conveying cylinder 9 and the discharging opening 5 is reduced to zero, enter the 8th state.
Please refer to Fig. 5-8, this figure be embodiment one provide concrete pumping device the 8th state the time distributor gear structural representation.Under this state, carry cylinder 11 and carry cylinder 10 to carry out stock and suction respectively; According to predetermined job requirement, carry cylinder 9 to commutate, think that the suction of NextState is prepared.Second wearing plate 72 continues rotation with W direction in scheming, and carrying cylinder 9 to begin to be connected with material sucking port 4, when the passage section between conveying cylinder 10 and the material sucking port 4 begins to reduce, returns first state, enters next cycle period.The periodic cycle of above-mentioned state can make the outer continuously pumping of concrete of concrete pumping device.
In above-mentioned periodic cycle, in each conveying cylinder commutation process, all be in closed state, promptly carry cylinder to begin to finish for one to commutation from commutation, carry the blind plate part between corresponding defeated material mouth 8 maintenances of cylinder and material sucking port 4 and the discharging opening 5 relative with this.
According to foregoing description, as can be seen, any state in the concrete pumping device course of work, at least one of concrete pumping device carries cylinder to carry out stock, and then this concrete pumping device can be at arbitrary state, outside pumping of concrete of arbitrary moment, concrete continuous ground is flowed out from discharging opening 5, and then fundamentally eliminated the pumping break time that exists in the pumping process, concrete can be flowed in carrier pipe continuously, avoid eliminating the vibration that produces owing to the discontinuous pumping because pumping is interrupted the mobile interruption of the concrete that causes.Equally, this example provides the concrete pumping device also can guarantee under arbitrary state, and at least one carries cylinder to carry out suction; The continuity suction provides good prerequisite for stock on the one hand, on the other hand, the continuity suction can be eliminated the vibration that produces owing to the discontinuous suction further from according to the break time that exists the last elimination suction process, improves its job stability significantly.Under specific circumstances, also can make radian a that material sucking port 4 takies less than the radian e that the blind plates between adjacent two defeated material mouthfuls 8 partly take, can also on first wearing plate 71, be provided with a plurality of can with defeated material mouthful 8 a plurality of material sucking ports 4 that are connected.
The radian c that makes the blind plate part between material sucking port 4 and the discharging opening 5 is that the benefits of 60 degree are: make and respectively carry cylinder to have identical duty conversion time, convenient each is carried the control of cylinder working state conversion.Preferably, the radian d that takies greater than arbitrary material transport hole 8 of the radian c that the blind plate between material sucking port 4 and the discharging opening 5 is partly taken.Like this, in the time of can making material transport hole 8 corresponding, with material transport hole 8 sealings, guarantee the sealing performance of corresponding conveying cylinder by the blind plate part with the blind plate part; The radian e that the radian c that blind plate between material sucking port 4 and the discharging opening 5 is partly taken partly takies less than the blind plate between any two adjacent defeated material mouths 8 with at any time, makes at least one carry cylinder to carry out work, carries out suction or stock.
Be appreciated that defeated material mouthfuls 8 is not limited to be evenly distributed on second wearing plate 72, guaranteeing that each defeated material mouthfuls 8 can be according under predefined procedure and the prerequisite that discharging opening 5 and material sucking port 4 are connected; As long as on direction of rotation, the radian e that the radian b that discharging opening 5 takies partly takies greater than the blind plate between adjacent any two defeated material mouths 8, just can be under any state, make at least one carry cylinder to be connected with discharging opening 5, can make this conveying cylinder carry out continuous stock, realize the purpose of this utility model.Equally, when second wearing plate 72 has more a plurality of defeated material mouth 8, can reduce the radian b that discharging opening 5 takies.
Please refer to Fig. 6, this figure is the structural representation of second kind of distributor gear providing of the utility model.In this distributor gear, second wearing plate 72 comprises the defeated material mouth of 6 of even layout, and the radian b that discharging opening 5 takies equally is 120 degree.Utilize this distributor gear, can under arbitrary state, guarantee that at least two are carried cylinder to carry out stock, and then can improve the stability of stock so further.Based on identical principle, above-mentioned distributor gear can also make the concrete pumping device under any state, has at least two to carry cylinder to carry out suction.
In this example, material sucking port 4 and discharging opening 5 be the waist shape structure of extending along direction of rotation, the benefit of this structure is: the first, can guarantee that like this first wearing plate 71 of distributor gear 7 has enough intensity; The second, before and after state conversion because defeated material mouthfuls 8 and material sucking port 4 and and stock mouth 5 between the variation of passage section gradual change type; The gradual change of elastic speed that this structure can make this gradual change type change and the conveying cylinder commutates adapts, suction when avoiding suction, and the stock high pressure is to the compression shock of first wearing plate 71 during stock.Satisfying the intensity needs, satisfying with defeated and expect also material sucking port 4 and discharging opening 5 to be set to other waist shape structures or non-waist shape structure under mouthful 8 situations about being connected.The structural representation of the third distributor gear that the utility model as shown in Figure 7 provides, in this distributor gear, material sucking port 4 and discharging opening 5 just are respectively rectangular configuration.
Among the embodiment one, feed pipe 2 one ends in the concrete pumping device link to each other with the bottom of hopper 3, and this structure can be arranged concrete pumping device and distributor gear 7 in 3 minutes with hopper, avoided in the prior art, and distributing valve takies the deficiency in hopper 3 spaces; And then the dischargeable capacity of hopper 3 is increased, the hopper blade stirs more abundant; Simultaneously, feed pipe 2 is linked to each other with the bottom of hopper 3, can utilize concrete action of gravity, concrete is flowed to material sucking port 4, more help suction, be particularly conducive to concrete suction, make the suction efficient of concrete pumping device higher coarse aggregate, reduce the buildup in the hopper 3, can also make things convenient for the cleaning of hopper 3.
In addition, material sucking port 4 is directly linked to each other with hopper 2, please refer to Fig. 8, this figure is the structural representation of a kind of concrete pumping device of providing of the utility model embodiment two.Compare with the concrete pumping device that embodiment one provides, its difference is that material sucking port 4 directly is connected with hopper 3, and first wearing plate 71 can be the part of the wallboard of hopper 3, also can fix, make hopper 3 inner concretes can directly arrive material sucking port 4 with the wallboard of hopper 3.
Please refer to Fig. 9, this figure is the structural representation of the 4th kind of distributor gear providing of the utility model.Compare with the distributor gear among the embodiment one, the difference of this distributor gear is that three defeated material mouths 8 are respectively the annulus section that two ends have straight flange, and material sucking port 4 and discharging opening 5 also are waist shape structure, and this moment, waist shape structure was the annulus section that two ends have straight flange.In order to guarantee defeated material mouthful and to carry the cylinder cross-sections match, can also carry the cylinder cross section to be set to and defeated structure of expecting that mouth 8 is identical.Certainly, also can be with the discharging opening 5 of the defeated material mouth 8 of other shapes and other shapes or/and charging aperture 4 make up or mate.
On the basis that above-mentioned concrete pumping device is provided, the utility model also provides concrete mixer, this concrete mixer comprises boom system and concrete pumping device, described concrete pumping device is above-mentioned any concrete pumping device, and described discharge nozzle is connected with the carrier pipe of boom system.Because the concrete pumping device has above-mentioned technique effect, the concrete mixer that comprises this concrete pumping device also has the corresponding techniques effect, eliminate because discontinuous pumping and vibrative vibration source, make its boom system work more stable, vibrate littler, and then can be transported to the predetermined operation position with concrete is more accurate, and then improve the quality of concrete work greatly.Certainly, above-mentioned pumping installations is not limited to be used for concrete mixer, can also be applied in to drag on pump, Vehicle loaded pump or other pumping machines.Can produce the corresponding techniques effect equally.
Providing on the basis of above-mentioned concrete mixer, performance for the continuous stock of bringing into play above-mentioned concrete mixer better, a kind of control method that can control above-mentioned concrete mixer also is provided, compare with the control method of existing concrete pump truck, its difference is, second wearing plate 72 is rotated with predetermined speed or mode with respect to described first wearing plate 71, defeated material mouthfuls 8 is connected with discharging opening 5 and material sucking port 4 by predefined procedure, when predetermined defeated material mouth 8 is connected with discharging opening 5, make this defeated material mouth be the stock mouth, and make and this defeated material mouthful conveying cylinder pump material that is connected, when predetermined defeated material mouth 8 is connected with material sucking port, make this defeated material mouth be charging aperture, and make and be somebody's turn to do mouthful conveying cylinder suction that is connected of defeated material; Adopt above-mentioned control method, can make the concrete pump truck arm system outwards not hold output concrete continuously at any time, eliminate discontinuous and carry the vibration that causes, reduce the Oscillation Amplitude that jib is not held significantly.Second wearing plate 72 with respect to the rotation mode of first wearing plate 71 in predetermined scope intercycle rotation, preferred circumference formula rotation is to reduce the impact of reciprocally swinging to the concrete pumping device.
The above only is a preferred implementation of the present 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 improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (11)
1. the distributor gear of a pumping installations is characterized in that, comprises first wearing plate (71) and second wearing plate (72), the work plane of described first wearing plate (71) and second wearing plate (72) the rotatable cooperation of work plane; Described first wearing plate (71) also has at least one discharging opening (5) and at least one material sucking port (4), and described second wearing plate (72) has at least three defeated material mouthful (8); In rotary course, described defeated material mouth (8) is connected with discharging opening (5) and material sucking port (4) by predefined procedure; On described direction of rotation, the radian (e) that the radian (b) that described discharging opening (5) takies partly takies greater than the blind plate between adjacent any two described defeated material mouths (8).
2. the distributor gear of pumping installations according to claim 1 is characterized in that, on described direction of rotation, and the radian (e) that the radian (a) that described material sucking port (4) takies partly takies greater than the blind plate between adjacent any two described defeated material mouths (8).
3. the distributor gear of pumping installations according to claim 1 and 2 is characterized in that, on described direction of rotation, described second wearing plate (72) has equally distributed at least three defeated material mouthful (8).
4. the distributor gear of pumping installations according to claim 3 is characterized in that, on described direction of rotation, the radian (b) that described discharging opening (5) takies is at least 120 degree.
5. the distributor gear of pumping installations according to claim 3 is characterized in that, on described direction of rotation, and the radian (d) that the radian (c) that the blind plate between described material sucking port (4) and the discharging opening (5) partly takies takies greater than arbitrary material transport hole (8).
6. the distributor gear of pumping installations according to claim 3 is characterized in that, described discharging opening (5) is or/and material sucking port (4) is the waist shape structure of extending along direction of rotation.
7. the distributor gear of pumping installations according to claim 6 is characterized in that, described waist shape structure is the annulus section that the semicircle transition is passed through at two ends; The radius of described defeated material mouth (8) equates with the radius of the two ends semicircle of described waist shape structure.
8. the distributor gear of pumping installations according to claim 6 is characterized in that, described waist shape structure is the annulus section that two ends have straight flange; Described defeated material mouth (8) has the annulus section of straight flange for two ends.
9. pumping installations, comprise discharge nozzle and at least three conveying cylinders, it is characterized in that, also comprise each described distributor gear of claim 1-8, described material sucking port (4) is connected with hopper (3), described discharging opening (5) is connected with discharge nozzle (1) one end, and described conveying cylinder is connected with a described defeated material mouth (8) respectively.
10. pumping installations according to claim 9 is characterized in that, also comprises feed pipe (2), and described feed pipe (2) one ends are connected with the bottom of hopper (3), and the other end is connected with material sucking port (4).
11. a concrete mixer comprises boom system and pumping installations, it is characterized in that, described pumping installations is claim 9 or 10 described pumping installations, and the other end of described discharge nozzle (1) is connected with the carrier pipe of described boom system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202274681U CN201671345U (en) | 2010-06-11 | 2010-06-11 | Pumping device and allocating mechanism thereof and concrete pumping vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202274681U CN201671345U (en) | 2010-06-11 | 2010-06-11 | Pumping device and allocating mechanism thereof and concrete pumping vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN201671345U true CN201671345U (en) | 2010-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010202274681U Expired - Lifetime CN201671345U (en) | 2010-06-11 | 2010-06-11 | Pumping device and allocating mechanism thereof and concrete pumping vehicle |
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| CN (1) | CN201671345U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011153873A1 (en) * | 2010-06-11 | 2011-12-15 | 湖南三一智能控制设备有限公司 | Distribution mechanism of pumping device, pumping device, concrete pump truck and control method thereof |
| CN102588243A (en) * | 2012-03-15 | 2012-07-18 | 三一重工股份有限公司 | Engineering machinery, material pumping system and pumping method for material pumping system |
| CN102619743A (en) * | 2012-04-17 | 2012-08-01 | 三一重工股份有限公司 | Distributing valve, pumping system and engineering machinery |
| CN109989900A (en) * | 2019-05-24 | 2019-07-09 | 徐州徐工施维英机械有限公司 | Pasty material conveying device and its control method and engineering truck |
| CN109989900B (en) * | 2019-05-24 | 2024-06-07 | 徐州徐工施维英机械有限公司 | Paste material conveying device, control method thereof and engineering vehicle |
-
2010
- 2010-06-11 CN CN2010202274681U patent/CN201671345U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011153873A1 (en) * | 2010-06-11 | 2011-12-15 | 湖南三一智能控制设备有限公司 | Distribution mechanism of pumping device, pumping device, concrete pump truck and control method thereof |
| CN101845891B (en) * | 2010-06-11 | 2012-02-08 | 三一重工股份有限公司 | Concrete pump truck and control method thereof, pumping device and distribution mechanism thereof |
| CN102588243A (en) * | 2012-03-15 | 2012-07-18 | 三一重工股份有限公司 | Engineering machinery, material pumping system and pumping method for material pumping system |
| CN102619743A (en) * | 2012-04-17 | 2012-08-01 | 三一重工股份有限公司 | Distributing valve, pumping system and engineering machinery |
| CN109989900A (en) * | 2019-05-24 | 2019-07-09 | 徐州徐工施维英机械有限公司 | Pasty material conveying device and its control method and engineering truck |
| CN109989900B (en) * | 2019-05-24 | 2024-06-07 | 徐州徐工施维英机械有限公司 | Paste material conveying device, control method thereof and engineering vehicle |
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| C14 | Grant of patent or utility model | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20101215 Effective date of abandoning: 20120208 |