CN101806221A - Brush-type spraying device for concrete sprayers - Google Patents
Brush-type spraying device for concrete sprayers Download PDFInfo
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- CN101806221A CN101806221A CN201010136199A CN201010136199A CN101806221A CN 101806221 A CN101806221 A CN 101806221A CN 201010136199 A CN201010136199 A CN 201010136199A CN 201010136199 A CN201010136199 A CN 201010136199A CN 101806221 A CN101806221 A CN 101806221A
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Abstract
The invention relates to a brush-type spraying device for concrete sprayers. The brush-type spraying device comprises a hollow cylindrical spraying device mounting seat 2, a first hydraulic motor 3, a second hydraulic motor 6 and a third hydraulic motor 18, wherein the first hydraulic motor 3 is installed in the cavity of the spraying device mounting seat 2; the first hydraulic motor 3 is connected with the second hydraulic motor 6 through a right-angled mounting rack 5, and the second hydraulic motor 6 is connected with a spraying nozzle mounting rack 7; the spraying nozzle mounting rack 7 is provided with a third motor seat 720 and a brush rack hinged support 9; the protruding end of a swing axle 102 is connected with the output shaft of the third hydraulic motor 18 through an eccentric disc 21 and a knuckle bearing, and the swing axle 102 is connected with the brush rack hinged support 9 through a ball joint structure; and a concrete delivery hard pipe 16 is fixed on a brush rack 10. The invention has the advantages of reducing the resiliency and the slump of concrete spraying, increasing the utilization ratio of the concrete, improving the tunnel construction environment, enhancing the concrete spraying quality and the like.
Description
Technical field
Type of the present invention relates to a kind of injection apparatus that is applied to concrete sprayer, particularly discloses a kind of brush-type spraying device for concrete sprayers.
Background technology
Two broad theories in the Tunnel Design construction: the one, lax load theory, its core content is that stable rock mass has self-stable ability, do not produce load, unsettled rock mass then may produce and cave in, need be supported with supporting and protection structure, the load that acts on like this on the supporting and protection structure is exactly that country rock is within the specific limits because rock mass gravity lax and the possibility slump; The 2nd, rock holds theory, and its core content is that adjoining rock stability obviously is that rock mass self has the carrying self-stable ability, and unstable country rock forfeiture is stable a process, if necessary restriction is provided in this process, then country rock still can enter stable state once more.This shows that preceding a kind of theory is more noted the result and to result's processing; Then a kind of theory is then more noted process and to the control of process, i.e. making full use of self.Because this difference is arranged, and the technological means that two kinds of theoretical systems cause being adopted in the constructing tunnel process is different with method.
New Austrian Tunneling Method (New Austrian Tunnelling Method) is that rock holds theoretical representative method in the construction of tunnel practice, has progressively become one of main stream approach of current constructing tunnel at present.An important important guiding theory that adopts New Austrian Tunneling Method to carry out constructing tunnel is exactly: rock mass is the main load bearing unit in the tunnel structure system, and the rock mass that must adequately protect in construction reduces the disturbance to it as far as possible, avoids excessively destroying the intensity of rock mass.In order to give full play to the supporting capacity of rock mass, allow the distortion of rock mass on the one hand, make country rock can form load-carrying ring; Must limit it again on the other hand, make the unlikely overrelaxation of rock mass and excessively reduce or the forfeiture supporting capacity.So the flexible support structure that block can be strengthened again at any time can closely connected with country rock, be in time built in general employing in construction, for example, bolt-spary supports etc.Like this, just can control the distortion of rock mass by intensity, rigidity and its stressed time of adjusting supporting and protection structure.In order to improve the stress performance of tunnel support layer, a sheath often needs quick sealing in the construction, forms the tubular construction of sealing.So in the set of tunneling construction based on New Austrian Tunneling Method, often need fast placing to prop up sheath after the preliminary cavitation.And adopt traditional artificial lining cutting supporting interval velocity too slow, and not only can reduce the constructing tunnel quality, more can prolong the constructing tunnel cycle, increase the economy and the social cost of tunnel construction.Fast, the quality of the concrete sprayer speed of application that props up sheath because of its lining cutting is high has for this reason become constructing tunnel, especially large tunnel construction imperative equipment gradually.
What the preliminary bracing lining cutting of early stage tunnel New Austrian Tunneling Method construction was adopted is concrete dry spraying construction technology, have technology simple, be simply equipped, characteristics such as dust pollution is serious, concrete strength is low, water/binder ratio is wayward, rebound degree is big, cause not only that concrete utilization rate is low, efficiency of construction is not high, the what is more important workmanship is difficult to reach designing requirement, constructor healthy has been caused very big negative effect.So concrete spraying technology occurred, promptly will make the concrete that water/binder ratio is suitable, have enough viscosityes earlier, by vane pump, impeller pump or plunger displacement pump this concrete is boosted then, be blended into the accelerating admixture of proper proportion to injector head import department by line transportation, introduce pressure-air again, concrete forms thin stream.Because compressed-air actuated potential energy constantly transforms kinetic energy, static pressure constantly reduces, and dynamic pressure constantly raises, and causes the flow velocity of thin concrete in injector head constantly to raise, concrete is released jet expansion fast the most at last, sprays on the scar of excavation and be attached on to form a sheath on the crag.Facts have proved that the concrete spraying technology can obviously raise the efficiency and construction quality, significantly improve tunnel construction environment.
Though concrete spraying technology is reduced to 15-30% with the rebound degree of dried pressure spray process about 50%, concrete utilization rate is increased to about 70%, but the movement locus of relative tertiary location, nozzle that still needs to be optimized discrete Dual-Phrase Distribution of Gas olid, nozzle and crag of concrete and pressure-air is to reduce the rebound degree and the slump of concrete injection, improve concrete utilization rate, save constructing tunnel economy and time cost, improve construction environment.
Summary of the invention
The purpose of type of the present invention is the construction operation technical characterictic at wet concrete sprayer in the prior art, a kind of brush-type spraying device for concrete sprayers is proposed, make nozzle have favorable applicability to the complex-shaped crag in surface, be easy to guarantee that the relative space position between jet expansion and the crag is in the suitable scope, reduce high velocity air the concrete aerodynamic interference that is attached on ot-yet-hardened on the crag is caused slump, thereby improve concrete utilization rate and construction quality.
Type of the present invention is achieved in that a kind of brush-type spraying device for concrete sprayers, comprise the flanged (FLGD) hollow cylindrical in two ends the moving frame 10 of injection apparatus mount pad 2, right angle type installing rack 5, I hydraulic motor 3, II hydraulic motor 6, III hydraulic motor 18, shower nozzle installing rack 7, brush, transmission and concrete transmission hard tube 16, with the transmission and concrete transmission hard tube 16 coaxial transmission and concrete transmission flexible pipes 20 that link to each other.Described I hydraulic motor 3 is installed in the internal cavities of injection apparatus mount pad 2 by the flange of injection apparatus mount pad 2 one ends, and the other end flange of described injection apparatus mount pad 2 links to each other with the injection mechanical arm.The clutch end face of described I hydraulic motor 3 links to each other with a straight flange of right angle type installing rack 5, and another straight flange of described right angle type installing rack 5 is installed II hydraulic motor 6, and the clutch end face of described II hydraulic motor 6 links to each other with shower nozzle installing rack 7; Described shower nozzle installing rack 7 is provided with the III motor seat 720 that is used to install III hydraulic motor 18, the moving frame free bearing 9 of brush that is used to connect the moving frame 10 of brush; The moving frame 10 of described brush is made of U-shaped seat 104, swinging axle 102, described U-shaped seat 104 interconnects " P " shape that is horizontal with swinging axle 102, the moving frame free bearing of the middle part of described swinging axle 102 and brush 9 links to each other by spherical hinge structure, thereby form first strong point of the moving frame 10 of brush, the moving frame 10 of brush can be made circle swing around this strong point in the certain angle scope; The external part of described swinging axle 102 links to each other by eccentric disc 21, the oscillating bearing that links to each other successively with the output shaft of III hydraulic motor 18, thereby forms second strong point of the moving frame 10 of brush; Be provided with a key 29 between the output shaft of described eccentric disc 21 and III hydraulic motor 18, the output axle head of described III hydraulic motor 18 is fastening to guarantee that eccentric disc 21 can not break away from the output shaft of III hydraulic motor 18 is unexpected with parts such as bolt, pressing plates.Described transmission and concrete transmission hard tube 16 is fixed on the U-shaped seat 104 of the moving frame 10 of brush.
Described shower nozzle installing rack 7 is provided with concrete pipe sheath 730, and described transmission and concrete transmission flexible pipe 20 passes concrete pipe sheath 730 and 16 coaxial linking to each other of transmission and concrete transmission hard tube.
Be provided with protection spring 19 in the described concrete pipe sheath 730, described transmission and concrete transmission flexible pipe 20 passes the protection spring 19 and 16 coaxial linking to each other of transmission and concrete transmission hard tube in the concrete pipe sheath 730.Described transmission and concrete transmission hard tube 16 links to each other with mixed flow device 11, and described mixed flow device 11 links to each other with nozzle 13, and described mixed flow device 11 is provided with pressure-air and takes over 12.Because between transmission and concrete transmission flexible pipe 20 and the transmission and concrete transmission hard tube 16 is to fixedly connected, and transmission and concrete transmission flexible pipe 20 has certain rigidity and intensity, so 730 of concrete pipe sheaths have been connected into the 3rd strong point that brush moves frame 10.Transmission and concrete transmission hard tube 16 with the mixed flow device, nozzle is coaxial is connected, concrete can enter transmission and concrete transmission hard tube 16, mixed flow device successively after transmission and concrete transmission flexible pipe 20 enters, enter nozzle in the mixed flow device with after the pressure-air blending, sprays to scar then.
The ball cover fixed cap 27 that described oscillating bearing comprises the ball cover fixed body 28 that links to each other with eccentric disc 21, be positioned at ball cover fixed body 28 and the ball cover 24 that links to each other with the external part of swinging axle 102, be used for fixing ball cover 24 and link to each other with ball cover fixed body 28.Described ball cover fixed body 28 fuses with ball cover fixed cap 27, forms a ball pivot overcoat.
Described ball cover fixed body 28 is provided with ball cover lubrication assembly 280.
The external part of described swinging axle 102 is a thread segment 101, and described ball cover 24 is fixing by locking nut 25 with thread segment 101.
Described oscillating bearing comprises and is fixed on bulb driving lever 214 on the eccentric disc 21, is located at the pit 105 on the external part of swinging axle 102 that the bulb of described bulb driving lever 214 is positioned at pit 105.
Described oscillating bearing comprises bulb driving lever 214 on the external part that is fixed on swinging axle 102, is located at the pit 105 on the eccentric disc 21, and the bulb of described bulb driving lever 214 is positioned at pit 105.
Described spherical hinge structure comprises the hemisphere jut 103 that is arranged on the swinging axle 102, be located at spherical pit 710 on the moving frame free bearing 9 of brush, with the ball pivot wedge 17 that hemisphere jut 103 is complementary, described hemisphere jut 103 is between spherical pit 710 and ball pivot wedge 17.The moving frame free bearing 9 of brush is connected to form the ball pivot shell with ball pivot wedge 17 by securing member.Moving frame free bearing 9 of brush and the ball pivot wedge 17 common hemisphere juts 103 that retrain on the moving frame 10 of brush.
Described brush moves on frame free bearing 9, the ball pivot wedge 17 and is respectively equipped with lubrication assembly 8.
Described spherical hinge structure comprises the spherical stepped hole 106 that is arranged on the swinging axle 102, is fixed on the bulb suspension rod 31 on the moving frame free bearing 9 of brush, and the bulb of described bulb suspension rod 31 is positioned at spherical stepped hole 106.
Described spherical hinge structure comprises the bulb pulling seat 107 that is positioned on the swinging axle 102, and the bulb of described bulb pulling seat 107 is restrained on the moving frame free bearing 9 of brush by bulb clamp 32.
The scope of described I hydraulic motor 3 reciprocally swingings is ± 150 °～± 190 °, and the scope of II hydraulic motor 6 reciprocally swingings is ± 90 °～± 140 °, and III hydraulic motor 18 rotates continuously.
Concrete after boosting imports from transmission and concrete transmission flexible pipe 20, enter transmission and concrete transmission hard tube 16, mixed flow device 11, the nozzle 13 of coaxial arrangement successively, and in mixed flow device 11 with the pressure-air blending of taking over 12 from pressure-air, form thin stream, acceleration forms discrete concrete injection stream from the outlet ejection of nozzle 13.
The beneficial effect of type of the present invention is: 1, under the cooperating of I hydraulic motor 3 and II hydraulic motor 6, the operative orientation scope of nozzle 13 is very wide, and injection direction is easy to control, matching between concrete injection stream and the complicated scar significantly can be improved, thereby can better reduce the rebound degree that concrete sprays, improve tunnel construction environment, improve compactness and the concrete utilization rate of concrete on scar;
Even 2, mixed accelerating admixture in the concrete, it solidifies also needs the regular hour, if be attached on concrete on the unit area crag sometime to the viscous force of the crag gravity less than concrete self, the concrete in so should the zone will slump.And among the present invention, because the brush that does not stop during nozzle 13 work is moving, the concrete injection stream can be for a long time facing to certain regional continuous injection on the crag, can make the concrete that drops on the scar in the unit interval be distributed in the much bigger zone like this, be equivalent to greatly reduce the amount of concrete that drops in the unit interval on the crag, thereby greatly reduce the concrete slump possibility that is attached on the crag, improved concrete utilization rate and operating efficiency.
3, after the concrete injection stream is left nozzle; situations such as the layering of different-diameter aggregate, aggregate and cement granules segregation appear in regular meeting under the effect of aerodynamic force; for example big size particles concentrates on the inside of the discrete awl of concrete easily; cement granules concentrates on the outside of discrete awl easily, thereby the concrete that is injected on the crag is difficult for ensuring the quality of products.As previously mentioned, owing to be moving during nozzle operation among the present invention at the brush that does not stop, prop up at the tunnel crag under the identical situation of thickness of sheath, concrete is sprayed from level to level back and forth, thereby the ingredients of concrete that is injected on the crag is more even, executes the spray quality thereby can improve concrete.
4, protection spring 19 and concrete pipe sheath 730 can effectively be protected transmission and concrete transmission flexible pipe 20 and this fragile position of transmission and concrete transmission hard tube 16 points of attachment; reduced and answered establishing to execute when spray to cause 20 explosions of transmission and concrete transmission flexible pipe because of factors such as vibrations, folding stress, concrete impacts or fracture, thereby can significantly prolong application life of transmission and concrete transmission flexible pipe 20.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention one;
Fig. 2 is the structural representation of the shower nozzle installing rack of the embodiment of the invention one;
Fig. 3 is the structural representation after the moving frame of the brush of the embodiment of the invention one and ball cover, locking nut are assembled;
Fig. 4 is the structural representation of the embodiment of the invention two;
Fig. 5 is the moving shelf structure schematic diagram of the brush of the embodiment of the invention two;
Fig. 6 is the eccentric disc structural representation of the embodiment of the invention two;
Fig. 7 is the structural representation of the embodiment of the invention three;
Fig. 8 is the moving shelf structure schematic diagram of the brush of the embodiment of the invention three;
Fig. 9 is the structural representation of the embodiment of the invention four;
Figure 10 is the moving shelf structure schematic diagram of the brush of the embodiment of the invention four;
Figure 11 is a fundamental diagram of the present invention.
Among the figure: 2, injection apparatus mount pad; 3, I hydraulic motor; 5, right angle type installing rack; 6, II hydraulic motor; 7, shower nozzle installing rack; 8, lubrication assembly; 9, the moving frame free bearing of brush; 10, the moving frame of brush; 11, mixed flow device; 12, pressure-air is taken over; 13, nozzle; 16, transmission and concrete transmission hard tube; 17, ball pivot wedge; 18, III hydraulic motor; 19, protection spring; 20, transmission and concrete transmission flexible pipe; 21, eccentric disc; 24, ball cover; 25, locking nut; 27, ball cover fixed cap; 28, ball cover fixed body; 29, key; 31, bulb suspension rod; 32, bulb clamp; 101, thread segment; 102, swinging axle; 103, hemisphere jut; 104, U-shaped seat; 105, pit; 106, spherical stepped hole; 107, bulb pulling seat; 214, bulb driving lever; 280, ball cover lubrication assembly; 710, spherical pit; 720, III motor seat; 730, concrete pipe sheath.
The specific embodiment
According to Fig. 1～Figure 10, the present invention includes the flanged (FLGD) hollow cylindrical in two ends the moving frame 10 of injection apparatus mount pad 2, right angle type installing rack 5, I hydraulic motor 3, II hydraulic motor 6, III hydraulic motor 18, shower nozzle installing rack 7, brush, transmission and concrete transmission hard tube 16, with the transmission and concrete transmission hard tube 16 coaxial transmission and concrete transmission flexible pipes 20 that link to each other.Described I hydraulic motor 3 is installed in the internal cavities of injection apparatus mount pad 2 by the flange of injection apparatus mount pad 2 one ends, and the other end flange of described injection apparatus mount pad 2 links to each other with the injection mechanical arm.The clutch end face of described I hydraulic motor 3 links to each other with a straight flange of right angle type installing rack 5, and another straight flange of described right angle type installing rack 5 is installed II hydraulic motor 6, and the clutch end face of described II hydraulic motor 6 links to each other with shower nozzle installing rack 7; Described shower nozzle installing rack 7 is provided with the III motor seat 720 that is used to install III hydraulic motor 18, the moving frame free bearing 9 of brush that is used to connect the moving frame 10 of brush; The moving frame 10 of described brush is made of U-shaped seat 104, swinging axle 102, described U-shaped seat 104 interconnects " P " shape that is horizontal with swinging axle 102, the moving frame free bearing of the middle part of described swinging axle 102 and brush 9 links to each other by spherical hinge structure, thereby form first strong point of the moving frame 10 of brush, the moving frame 10 of brush can be made circle swing around this strong point in the certain angle scope; The external part of described swinging axle 102 links to each other by eccentric disc 21, the oscillating bearing that links to each other successively with the output shaft of III hydraulic motor 18, thereby forms second strong point of the moving frame 10 of brush; Be provided with a key 29 between the output shaft of described eccentric disc 21 and III hydraulic motor 18, the output axle head of described III hydraulic motor 18 is fastening to guarantee that eccentric disc 21 can not break away from the output shaft of III hydraulic motor 18 is unexpected with parts such as bolt, pressing plates.Described transmission and concrete transmission hard tube 16 is fixed on the U-shaped seat 104 of the moving frame 10 of brush.Described shower nozzle installing rack 7 is provided with concrete pipe sheath 730, and described transmission and concrete transmission flexible pipe 20 passes concrete pipe sheath 730 and 16 coaxial linking to each other of transmission and concrete transmission hard tube.Be provided with protection spring 19 in the described concrete pipe sheath 730, described transmission and concrete transmission flexible pipe 20 passes the protection spring 19 and 16 coaxial linking to each other of transmission and concrete transmission hard tube in the concrete pipe sheath 730.Described transmission and concrete transmission hard tube 16 links to each other with mixed flow device 11, and described mixed flow device 11 links to each other with nozzle 13, and described mixed flow device 11 is provided with pressure-air and takes over 12.Because between transmission and concrete transmission flexible pipe 20 and the transmission and concrete transmission hard tube 16 is to fixedly connected, and transmission and concrete transmission flexible pipe 20 has certain rigidity and intensity, so 730 of concrete pipe sheaths have been connected into the 3rd strong point that brush moves frame 10.Transmission and concrete transmission hard tube 16 with the mixed flow device, nozzle is coaxial is connected, concrete can enter transmission and concrete transmission hard tube 16, mixed flow device successively after transmission and concrete transmission flexible pipe 20 enters, enter nozzle in the mixed flow device with after the pressure-air blending, sprays to scar then.The scope of described I hydraulic motor 3 reciprocally swingings is ± 150 °～± 190 °, and the scope of II hydraulic motor 6 reciprocally swingings is ± 90 °～± 140 °, and III hydraulic motor 18 rotates continuously.Concrete after boosting imports from transmission and concrete transmission flexible pipe 20, enter transmission and concrete transmission hard tube 16, mixed flow device 11, the nozzle 13 of coaxial arrangement successively, and in mixed flow device 11 with the pressure-air blending of taking over 12 from pressure-air, form thin stream, acceleration forms discrete concrete injection stream from the outlet ejection of nozzle 13.
The present invention is further elaborated with regard to specific embodiment below:
Embodiment one:
As Fig. 1, Fig. 2, Fig. 3, the ball cover fixed cap 27 that the present embodiment oscillating bearing comprises the ball cover fixed body 28 that links to each other with eccentric disc 21, be positioned at ball cover fixed body 28 and the ball cover 24 that links to each other with the external part of swinging axle 102, be used for fixing ball cover 24 and link to each other with ball cover fixed body 28, described ball cover fixed body 28 is provided with ball cover lubrication assembly 280.Described ball cover fixed body 28 fuses with ball cover fixed cap 27, forms a ball pivot overcoat.The external part of described swinging axle 102 is a thread segment 101, and described ball cover 24 is fixing by locking nut 25 with thread segment 101.
The present embodiment spherical hinge structure comprises the hemisphere jut 103 that is arranged on the swinging axle 102, be located at spherical pit 710 on the moving frame free bearing 9 of brush, with the ball pivot wedge 17 that hemisphere jut 103 is complementary, described brush moves on frame free bearing 9, the ball pivot wedge 17 and is respectively equipped with lubrication assembly 8.Described hemisphere jut 103 is between spherical pit 710 and ball pivot wedge 17.The moving frame free bearing 9 of brush is connected to form the ball pivot shell with ball pivot wedge 17 by securing member.Moving frame free bearing 9 of brush and the ball pivot wedge 17 common hemisphere juts 103 that retrain on the moving frame 10 of brush.
All the other structures such as above-mentioned.
Embodiment two:
As Fig. 4, Fig. 5, Fig. 6, the present embodiment oscillating bearing comprises and is fixed on bulb driving lever 214 on the eccentric disc 21, is located at the pit 105 on the external part of swinging axle 102 that the bulb of described bulb driving lever 214 is positioned at pit 105.Certainly this example also can be arranged at bulb driving lever 214 on the external part of swinging axle 102, and pit 105 is arranged on the eccentric disc 21.
All the other structures are with embodiment one.
Embodiment three:
As Fig. 7, Fig. 8, the spherical hinge structure of present embodiment comprises the spherical stepped hole 106 that is arranged on the swinging axle 102, is fixed on the bulb suspension rod 31 on the moving frame free bearing 9 of brush, and the bulb of described bulb suspension rod 31 is positioned at spherical stepped hole 106.
All the other structures are with embodiment one.
Embodiment four:
As Fig. 9, Figure 10, the spherical hinge structure of present embodiment comprises the bulb pulling seat 107 that is positioned on the swinging axle 102, and the bulb of described bulb pulling seat 107 is restrained on the moving frame free bearing 9 of brush by bulb clamp 32.
All the other structures are with embodiment one.
Operating principle of the present invention is as follows:
As Figure 11, and in conjunction with Fig. 1, whole injection apparatus of the present invention is installed on the spraying machine jib by described injection apparatus mount pad 2, and bears weight and other load of whole device.
Described I hydraulic motor 3 is manually controlled all parts of its downstream of drive according to the operation needs and is reciprocally swinging ω around the axis of rotation of I hydraulic motor 3 during the spraying machine operation
1, ω
1Span is ± 150 ° to ± 190 °, and described I hydraulic motor 3 is born weight and other load of its all parts of downstream.
Equally, described II hydraulic pressure 6 motors also can manually be controlled all parts of its downstream of drive by operating personnel and be reciprocally swinging ω around the axis of rotation of II hydraulic pressure 6 motors according to the operation needs
2, ω
2Span be ± 90 ° to ± 140 °, and described II hydraulic motor 6 is born weight and other load of its all parts of downstream.
Described shower nozzle installing rack 7 is in the weight of bearing its all parts of downstream and other load, become first positioning supports point of the moving frame 10 of brush in conjunction with the moving frame free bearing 9 of the brush on it, ball pivot wedge 17, and limited brush and moved the degree of freedom of the six direction translation of frame 10, but brush the rotary freedom that moving frame 10 still possesses 3 directions.
As long as spraying machine work, described III hydraulic motor 18 is with ω
3Rotate continuously, by its output shaft, key 29 drive eccentric discs 21 around the rotation of III hydraulic motor 18 also with ω
3The speed rotation, and further drive ball cover fixed body 28,27 rotations of ball cover fixed cap, the rotation that its geometric center rotational trajectory is an III hydraulic motor 18 is that the eccentric arm of axis, eccentric disc 21 is a circle of radius.Under described ball cover fixed body 28,27 actings in conjunction of ball cover fixed cap, drive ball cover 24 and together rotate, thereby make the moving frame 10 of described brush can center on the central point of the hemisphere jut 103 on it with ω
3Speed do continuous swing.
Because of the thread segment 101 on the moving frame 10 of ball cover 24 and brush is fixedly connected, and ball cover 24 is subjected to the common constraint of ball cover fixed body 28, ball cover fixed cap 27, thus 27 one-tenth of ball cover fixed bodies 28, ball cover fixed cap second strong point of the moving frame 10 of brush.Owing to have relative motion between the fixture corresponding matching surface of ball cover 24, hemisphere jut 103 external surfaces and periphery separately,, be provided with lubrication assembly 8 in order to reduce the wearing and tearing of relative motion face.
Because the moving frame 10 of brush all is fixedly connected with transmission and concrete transmission hard tube 16, mixed flow device 11, the nozzle 13 in downstream, so under the drive of the moving frame 10 of brush, the axis of nozzle 13 also can be with ω
3Speed brush moving, and to be in a cone angle be on the conical surface of 2 α in the axis of nozzle 13, the outlet position also can be with ω
3Speed make circular motion.When through the concrete that boosts after transmission and concrete transmission flexible pipe 20 enters, the transmission and concrete transmission of flowing through together hard tube 16, mixed flow device 11, in mixed flow device 11, carry out blending with the pressure-air 15 that is mixed with accelerating admixture, make in the pressure-air accelerating admixture with sneak into concrete and fully mix, and be thin stream by original closely knit rheology with concrete, flow velocity is accelerated, and enters nozzle 13.After leaving nozzle 13, the thin stream that concrete and pressure-air are formed enters the normal atmosphere environment; pressure-air meeting rapid expanding wherein; under the effect of aerodynamic force; concrete particle can further split; and sharply quicken; directive tunnel rock face is attached on the rock face, forms temporary lining layer in tunnel under the effect of accelerating admixture fast.
Can form when usually fluid leaves spout one from the center the discrete awl to the edge Normal Distribution, when I hydraulic motor 3 and II hydraulic motor 6 are failure to actuate, because it is on the conical surface of 2 α that the axis of nozzle 13 is in a cone angle, also to be in a cone angle be on the conical surface of 2 α so concrete 1 leaves discrete awl center line behind the nozzle 13, thereby the concrete that drops on the tunnel rock face mainly is in the zone of an annular.The size of this annular depends on the distance between nozzle 13 outlet and the tunnel scar, and the discrete cone angle of concrete when leaving nozzle 13; The concrete regularity of distribution depends on viscosity, the surface tension of discrete concrete in the circular annular region, and Weber number, Reynolds number etc.
After the physical dimension of described shower nozzle installing rack 7, the moving frame 10 of brush is determined, the movement locus of the axis of the swinging axle 102 on the moving frame 10 of brush also drops on the cone angle that cone angle is 2 α, the centre of gyration wire clamp angle of the axis of swinging axle 102 and III hydraulic motor 18 is α in other words, reaches the relative position of installing between the parts such as 720 according to the spherical pit 710 on the shower nozzle installing rack 7, III motor seat and determines eccentric arm on the eccentric disc 21.
On shower nozzle installing rack 7, be provided with concrete pipe sheath 730; and with the protection spring 19 of described concrete pipe guard shield 730 coaxial arrangement; the main effect of concrete pipe guard shield 730 is guide-localizations; the effect of protection spring 19 is guide-localization and buffering; can improve the smoothness that is connected between transmission and concrete transmission flexible pipe 20 and the transmission and concrete transmission hard tube 16 like this; reduce concrete in ducted flow resistance, prolong the life-span of transmission and concrete transmission flexible pipe 20 and transmission and concrete transmission hard tube 16 points of attachment.Because of transmission and concrete transmission flexible pipe 20 also has certain rigidity, under the common constraint of concrete pipe sheath 730 and protection spring, play brushing frame 10, the 16 sterically defined effects of transmission and concrete transmission hard tube, guarantee that the injection direction of nozzle 13 is controlled.
Claims (14)
1. brush-type spraying device for concrete sprayers is characterized in that: comprise the flanged (FLGD) hollow cylindrical in two ends the moving frame (10) of injection apparatus mount pad (2), right angle type installing rack (5), I hydraulic motor (3), II hydraulic motor (6), III hydraulic motor (18), shower nozzle installing rack (7), brush, transmission and concrete transmission hard tube (16), with the coaxial transmission and concrete transmission flexible pipe (20) that links to each other of transmission and concrete transmission hard tube (16); Described I hydraulic motor (3) is installed in the internal cavities of injection apparatus mount pad (2) by the flange of injection apparatus mount pad (2) one ends; The clutch end face of described I hydraulic motor (3) links to each other with a straight flange of right angle type installing rack (5), another straight flange of described right angle type installing rack (5) is installed II hydraulic motor (6), and the clutch end face of described II hydraulic motor (6) links to each other with shower nozzle installing rack (7); Described shower nozzle installing rack (7) is provided with the III motor seat (720) that is used to install III hydraulic motor (18), the moving frame free bearing (9) of brush that is used for connecting the moving frame (10) of brush; Described brush moves frame (10) and is made of U-shaped seat (104), swinging axle (102), described U-shaped seat (104) interconnects " P " shape that is horizontal with swinging axle (102), the external part of described swinging axle (102) links to each other by eccentric disc (21), the oscillating bearing that links to each other successively with the output shaft of III hydraulic motor (18), and described swinging axle (102) links to each other by spherical hinge structure with the moving frame free bearing (9) of brush; Described transmission and concrete transmission hard tube (16) is fixed on the U-shaped seat (104) of the moving frame (10) of brush.
2. a kind of brush-type spraying device for concrete sprayers according to claim 1, it is characterized in that: described shower nozzle installing rack (7) is provided with concrete pipe sheath (730), and described transmission and concrete transmission flexible pipe (20) passes concrete pipe sheath (730) and coaxial linking to each other of transmission and concrete transmission hard tube (16).
3. a kind of brush-type spraying device for concrete sprayers according to claim 2; it is characterized in that: be provided with protection spring (19) in the described concrete pipe sheath (730), described transmission and concrete transmission flexible pipe (20) passes the protection spring (19) and coaxial linking to each other of transmission and concrete transmission hard tube (16) in the concrete pipe sheath (730).
4. a kind of brush-type spraying device for concrete sprayers according to claim 1 is characterized in that: the ball cover fixed cap (27) that described oscillating bearing comprises the ball cover fixed body (28) that links to each other with eccentric disc (21), be positioned at ball cover fixed body (28) and the ball cover (24) that links to each other with the external part of swinging axle (102), be used for fixing ball cover (24) and link to each other with ball cover fixed body (28).
5. a kind of brush-type spraying device for concrete sprayers according to claim 4 is characterized in that: described ball cover fixed body (28) is provided with ball cover lubrication assembly (280).
6. a kind of brush-type spraying device for concrete sprayers according to claim 4 is characterized in that: the external part of described swinging axle (102) is thread segment (101), and described ball cover (24) is fixing by locking nut (25) with thread segment (101).
7. a kind of brush-type spraying device for concrete sprayers according to claim 1, it is characterized in that: described oscillating bearing comprises that being fixed on eccentric disc (21) goes up bulb driving lever (214), is located at the pit (105) on the external part of swinging axle (102), and the bulb of described bulb driving lever (214) is positioned at pit (105).
8. a kind of brush-type spraying device for concrete sprayers according to claim 1, it is characterized in that: described oscillating bearing comprises bulb driving lever (214) on the external part that is fixed on swinging axle (102), is located at the pit (105) on the eccentric disc (21), and the bulb of described bulb driving lever (214) is positioned at pit (105).
9. according to claim 1 or 4 or 7 or 8 described a kind of brush-type spraying device for concrete sprayers, it is characterized in that:
Be provided with a key (29) between the output shaft of described eccentric disc (21) and III hydraulic motor (18).
10. a kind of brush-type spraying device for concrete sprayers according to claim 1, it is characterized in that: described spherical hinge structure comprises the hemisphere jut (103) that is arranged on the swinging axle (102), be located at spherical pit (710) on the moving frame free bearing (9) of brush, with the ball pivot wedge (17) that hemisphere jut (103) is complementary, described hemisphere jut (103) is positioned between spherical pit (710) and the ball pivot wedge (17).
11. a kind of brush-type spraying device for concrete sprayers according to claim 10 is characterized in that: described brush moves on frame free bearing (9), the ball pivot wedge (17) and is respectively equipped with lubrication assembly (8).
12. a kind of brush-type spraying device for concrete sprayers according to claim 1, it is characterized in that: described spherical hinge structure comprises the spherical stepped hole (106) that is arranged on the swinging axle (102), is fixed on the bulb suspension rod (31) on the moving frame free bearing (9) of brush, and the bulb of described bulb suspension rod (31) is positioned at spherical stepped hole (106).
13. a kind of brush-type spraying device for concrete sprayers according to claim 1, it is characterized in that: described spherical hinge structure comprises the bulb pulling seat (107) that is positioned on the swinging axle (102), and the bulb of described bulb pulling seat (107) is restrained on the moving frame free bearing (9) of brush by bulb clamp (32).
14. a kind of brush-type spraying device for concrete sprayers according to claim 1, it is characterized in that: described I hydraulic motor (3) reciprocally swinging scope is ± 150 °～± 190 °, the scope of II hydraulic motor (6) reciprocally swinging is ± 90 °～± 140 °, and III hydraulic motor (18) is rotation continuously.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101361992A CN101806221B (en) | 2010-03-30 | 2010-03-30 | Brush-type spraying device for concrete sprayers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101361992A CN101806221B (en) | 2010-03-30 | 2010-03-30 | Brush-type spraying device for concrete sprayers |
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| Publication Number | Publication Date |
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| CN101806221A true CN101806221A (en) | 2010-08-18 |
| CN101806221B CN101806221B (en) | 2011-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101361992A Expired - Fee Related CN101806221B (en) | 2010-03-30 | 2010-03-30 | Brush-type spraying device for concrete sprayers |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102094657A (en) * | 2010-12-27 | 2011-06-15 | 长沙科达建设机械制造有限公司 | Sprayer wrist mechanism |
| CN102444287A (en) * | 2011-10-20 | 2012-05-09 | 中联重科股份有限公司 | Concrete sprayer brushing device and spray head assembly of concrete sprayer |
| CN102527557A (en) * | 2011-12-08 | 2012-07-04 | 吴江云峰金属购件涂装有限公司 | All-round spraying tube |
| CN102987771A (en) * | 2012-12-25 | 2013-03-27 | 大连理工计算机控制工程有限公司 | Three degree of freedom electric dynamic chair |
| WO2013056450A1 (en) * | 2011-10-20 | 2013-04-25 | 中联重科股份有限公司 | Brushing apparatus for shotcreting machine and sprayer assembly of shotcreting machine |
| CN103147762A (en) * | 2011-12-07 | 2013-06-12 | 秦皇岛天业通联重工股份有限公司 | Spraying device of wet spraying trolley |
| CN104061002A (en) * | 2014-06-09 | 2014-09-24 | 山东科技大学 | Mining concrete wet spraying manipulator device |
| CN104655515A (en) * | 2015-02-13 | 2015-05-27 | 长安大学 | Method for measuring wet spraying resilient rate of primary lining concrete in tunnel construction |
| CN105372158A (en) * | 2015-11-27 | 2016-03-02 | 长安大学 | Test device and method of cement mortar fluidity |
| CN107177483A (en) * | 2017-06-26 | 2017-09-19 | 国峰清源生物能源有限责任公司 | Zymolysis Equipment |
| CN107939048A (en) * | 2017-12-29 | 2018-04-20 | 湖南鹏翔星通汽车有限公司 | Injection apparatus, nozzle assembly and concrete ejection car |
| WO2018121142A1 (en) * | 2016-12-30 | 2018-07-05 | 中铁工程装备集团有限公司 | Mixing and guniting device of new type for tbm |
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| CN116371627A (en) * | 2023-05-31 | 2023-07-04 | 山西交通养护集团有限公司 | Be used for road and bridge tunnel lining maintenance equipment |
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| CN102094657A (en) * | 2010-12-27 | 2011-06-15 | 长沙科达建设机械制造有限公司 | Sprayer wrist mechanism |
| CN102444287A (en) * | 2011-10-20 | 2012-05-09 | 中联重科股份有限公司 | Concrete sprayer brushing device and spray head assembly of concrete sprayer |
| WO2013056450A1 (en) * | 2011-10-20 | 2013-04-25 | 中联重科股份有限公司 | Brushing apparatus for shotcreting machine and sprayer assembly of shotcreting machine |
| CN103147762B (en) * | 2011-12-07 | 2016-09-14 | 秦皇岛天业通联重工股份有限公司 | A kind of injection apparatus of wet shot chassis |
| CN103147762A (en) * | 2011-12-07 | 2013-06-12 | 秦皇岛天业通联重工股份有限公司 | Spraying device of wet spraying trolley |
| CN102527557A (en) * | 2011-12-08 | 2012-07-04 | 吴江云峰金属购件涂装有限公司 | All-round spraying tube |
| CN102987771A (en) * | 2012-12-25 | 2013-03-27 | 大连理工计算机控制工程有限公司 | Three degree of freedom electric dynamic chair |
| CN104061002A (en) * | 2014-06-09 | 2014-09-24 | 山东科技大学 | Mining concrete wet spraying manipulator device |
| CN104655515A (en) * | 2015-02-13 | 2015-05-27 | 长安大学 | Method for measuring wet spraying resilient rate of primary lining concrete in tunnel construction |
| CN105372158A (en) * | 2015-11-27 | 2016-03-02 | 长安大学 | Test device and method of cement mortar fluidity |
| WO2018121142A1 (en) * | 2016-12-30 | 2018-07-05 | 中铁工程装备集团有限公司 | Mixing and guniting device of new type for tbm |
| CN107177483A (en) * | 2017-06-26 | 2017-09-19 | 国峰清源生物能源有限责任公司 | Zymolysis Equipment |
| CN107177483B (en) * | 2017-06-26 | 2023-09-26 | 国峰清源生物能源有限责任公司 | Fermentation equipment |
| CN107939048A (en) * | 2017-12-29 | 2018-04-20 | 湖南鹏翔星通汽车有限公司 | Injection apparatus, nozzle assembly and concrete ejection car |
| CN109611126A (en) * | 2019-01-25 | 2019-04-12 | 蓝传雯 | A kind of arch spray booth vehicle |
| CN109611126B (en) * | 2019-01-25 | 2024-05-31 | 四川蓝海智能装备制造有限公司 | Arched spraying trolley |
| CN116371627A (en) * | 2023-05-31 | 2023-07-04 | 山西交通养护集团有限公司 | Be used for road and bridge tunnel lining maintenance equipment |
| CN116371627B (en) * | 2023-05-31 | 2023-08-08 | 山西交通养护集团有限公司 | Be used for road and bridge tunnel lining maintenance equipment |
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Address after: 201201 No. 277 Jinfeng Road, Shanghai, Pudong New Area Patentee after: SHANGHAI HONGDELI HEAVY INDUSTRY CO., LTD. Address before: 201201 No. 277 Jinfeng Road, Shanghai, Pudong New Area Patentee before: Shanghai Hold Heavy Industry Co., Ltd. |
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