CN109356619B

CN109356619B - Novel concrete mould spouts equipment

Info

Publication number: CN109356619B
Application number: CN201811420647.4A
Authority: CN
Inventors: 蓝传雯
Original assignee: Sichuan Lanhai Intelligent Equipment Manufacturing Co Ltd
Current assignee: Sichuan Lanhai Intelligent Equipment Manufacturing Co Ltd
Priority date: 2018-11-26
Filing date: 2018-11-26
Publication date: 2024-03-29
Anticipated expiration: 2038-11-26
Also published as: CN109356619A

Abstract

The invention discloses novel concrete mould spraying equipment which comprises a carrier mechanism, a large arm mechanism, a template mechanism and a spray head assembly, wherein the large arm mechanism is arranged on the carrier mechanism and comprises a rotary large arm, the template mechanism and the spray head assembly are arranged at the front end of the rotary large arm, the template mechanism can form a mould cavity with an excavated rock surface, and the spray head assembly can adjust the spraying angle/direction relative to the mould cavity. By using the die spraying trolley, zero rebound can be realized, the concrete consumption can be reduced by 20% -40% in the same operation range, and meanwhile, the consumption of accelerator is reduced, so that the economic benefit and the social benefit are remarkable; the concrete surface has high smoothness, no need of post-shaping, shortened construction period and greatly improved production efficiency; the whole-course remote control operation mechanical construction can be realized, the construction safety is greatly improved, the dust suction amount of operators can be effectively reduced, and the probability of occupational diseases such as silicosis and the like is reduced.

Description

Novel concrete mould spouts equipment

Technical Field

The invention belongs to the technical field of engineering machinery, and particularly relates to a concrete mould spraying device which is used for being matched with a tunnel primary support and is designed completely.

Background

In the primary support construction of the tunnel, a construction mode of directly spraying concrete on an excavation surface is adopted, wherein the concrete spraying mode is divided into mechanical arm spraying and manual spraying. The current construction method of directly spraying concrete has the following defects:

the rebound rate is high, 20% -40% of rebound exists in the existing construction process, and rebound materials cannot be recycled, so that great waste is caused, and the rebound material is a main reason for high construction cost.

The usage amount of the accelerator is large, the construction mode of directly spraying concrete requires that the concrete is required to be adhered to the excavation surface within a short time when the concrete contacts the excavation surface, and the concrete is ensured not to fall off after being adhered. The common concrete cannot meet the construction requirement, and then the accelerator is required to be added into plain concrete to meet the requirement of concrete solidification in a short time, and the accelerator is large in dosage, so that the construction cost is increased.

The surface roughness is poor, the surface roughness is poor after the construction molding of the direct injection concrete in the construction mode, and the surface of the direct injection concrete is required to be shaped before the construction of the next working procedure so as to meet the construction requirement, thus the construction working procedure is undoubtedly increased, the construction period is prolonged, and the construction cost is increased.

The construction safety is poor, when artifical the spraying, operating personnel can be under the unsupported face and construct, exist by falling the stone and drop the risk in the concrete pounding, and traditional guniting dust is big, and harm to the health is big.

In addition, the accelerator is a chemical reagent, and when the accelerator is manually sprayed, an operator is closer to the spray head, and the long-time operation can further cause harm to the body health of the operator.

Aiming at the current situation, the applicant creatively puts forward a concrete mould spraying thought, and invents a complete set of equipment for mould spraying, and a mould cavity is formed between a template mechanism and an excavated rock wall by matching the template mechanism with the excavated rock wall so as to effectively reduce the rebound quantity of concrete.

However, in the process of the die spraying operation, the die plate mechanism and the traditional fixed die plate are quite different, dynamic adjustment is required to be continuously carried out, and the position adjustment of the nozzle assembly relative to the die plate mechanism and the die cavity is also required to be carried out continuously, so that the control action is quite complex and the accuracy is required, and the overall performance of the die spraying mechanism is quite high. However, how to design the die spraying device for the tunnel supporting layer to realize the die spraying operation is not ready for reference, and in the prior art, the above-mentioned use requirements are difficult to meet.

Disclosure of Invention

The invention aims at: aiming at the defects in the prior art, the novel concrete mould spraying equipment is provided with various control mechanisms for the template mechanism and the spray head assembly, so that diversified linkage operation can be realized, and the mould spraying of the tunnel supporting layer can be realized.

The technical scheme of the invention is realized as follows:

the utility model provides a novel concrete mould spouts equipment, includes carrier mechanism, big arm mechanism, template mechanism and shower nozzle subassembly, establishes big arm mechanism on the carrier mechanism, and big arm mechanism includes the gyration big arm to establish template mechanism and shower nozzle subassembly at the front end of gyration big arm, template mechanism can form the die cavity with the excavation rock face, the shower nozzle subassembly is located template mechanism top, and can adjust its concrete of for the die cavity and spout into angle/direction.

The novel concrete mould spraying equipment is characterized in that the spray head assembly is also connected with a spraying system, the spraying system comprises a concrete pumping mechanism, an accelerator pumping mechanism, a compressed air supply device and a material agent mixer, the concrete pumping mechanism, the accelerator pumping mechanism and the compressed air supply device are respectively connected to the material agent mixer through pipelines, and the material agent mixer is connected to the spray head assembly; the material agent mixer mixes the concrete with the accelerator, and the compressed air sprays the concrete mixed with the accelerator to the die cavity through the nozzle assembly.

The novel concrete mould spraying equipment comprises a concrete mould, a concrete mould spraying device and a concrete mould spraying device, wherein the concrete mould spraying device is characterized in that a quick-setting agent pumping mechanism is connected with a mixer, and sends a quick-setting agent into the mixer; the compressed air supply device is connected with the mixer, and sends compressed air into the mixer to be mixed with the accelerator and atomized; the mixer is connected with the material and agent mixer, and the atomized accelerator mixed with the compressed air is sent into the material and agent mixer to be mixed with concrete.

The novel concrete mould spraying equipment comprises a template, a template rotation adjusting mechanism and/or a template pitching adjusting mechanism, wherein the surface of the template is provided with an arc-shaped surface, and the template is arranged on the template rotation adjusting mechanism and/or the template pitching adjusting mechanism; the rotation adjusting mechanism can adjust the rotation angle of the template, and the template pitching adjusting mechanism can adjust the pitching angle of the template.

The novel concrete mould spraying equipment is characterized in that the mould plate is a combined mechanism and is formed by connecting more than two single mould plates in a horizontal and/or vertical manner in a foldable/turnover manner; the integral template formed after the template group is unfolded can be matched with a rock surface to form at least one die cavity; and an opening and closing control mechanism is arranged between the adjacent single templates.

The novel concrete mould spraying equipment is characterized in that a spray head component is connected with a spray head fine adjustment mechanism, the fine adjustment mechanism comprises a pitching angle control mechanism and a rotating angle control mechanism, and the pitching angle control mechanism adjusts the pitching angle/direction of the spray head component; the rotation angle control mechanism controls the rotation angle/direction of the spray head assembly; the pitch angle control mechanism and the rotation angle control mechanism are mutually connected and matched, so that the angle/direction of the spray head assembly for spraying concrete into the die cavity is not perpendicular to the rock surface.

According to the novel concrete mould spraying equipment, the rotating angle control mechanism is provided with the rotating oil cylinder, the rotating shaft of the rotating oil cylinder is provided with the spray head support plate, the spray head assembly is hinged to the spray head support plate, the pitching angle control mechanism is provided with the pitching oil cylinder, the cylinder body of the pitching oil cylinder is hinged to the spray head support plate, and the piston rod of the pitching oil cylinder is hinged to the spray head assembly.

The novel concrete mould spraying equipment is characterized in that the spray head fine adjustment mechanism is connected with a spray head displacement mechanism, the spray head displacement mechanism comprises a transverse moving mechanism and a longitudinal moving mechanism, and the longitudinal moving mechanism adjusts the displacement of a spray head assembly in the longitudinal direction by controlling the spray head fine adjustment mechanism; the lateral movement mechanism adjusts the displacement of the spray head assembly in the transverse direction by controlling the spray head fine adjustment mechanism; the longitudinal moving mechanism and the transverse moving mechanism are connected with each other and are matched with each other to control the spray head assembly to move to any displacement point on the same plane.

The large arm mechanism also comprises a large arm rotary table, wherein the large arm rotary table comprises a vertical rotating assembly and a horizontal rotating assembly, and the vertical rotating assembly is connected with the rotary large arm and controls the rotary large arm to relatively rotate on a vertical surface; the horizontal rotating assembly is arranged on the carrier mechanism and controls the large arm mechanism to rotate at any angle in the horizontal plane.

According to the novel concrete mould spraying equipment, the carrier mechanism is arranged as the trolley, the trolley frame is longitudinally provided with the sliding mechanism, the large arm mechanism is arranged on the sliding mechanism, and the sliding mechanism can control the large arm mechanism to move along the longitudinal direction of the carrier mechanism.

The sliding mechanism comprises a track mechanism and a movable seat mechanism arranged on the track mechanism, and the large-arm turntable is arranged on the movable seat mechanism and can move along the longitudinal direction of the track mechanism along with the movable seat mechanism.

According to the novel concrete mould spraying equipment, the front end of the rotary large arm is provided with the rotating mechanism, the rotating mechanism is provided with the front arm mechanism, the front arm mechanism is connected with the template mechanism and the spray head assembly, and the front arm mechanism can rotate in a plane by taking the rotating mechanism as a fulcrum along with the template mechanism and the spray head assembly.

Compared with the prior art, the invention has the beneficial effects that: the novel concrete mould spraying equipment realizes the mould spraying operation of the tunnel supporting layer, compared with the traditional wet spraying manipulator, zero rebound can be realized, the concrete dosage can be reduced by 20-40% in the same operation range, and meanwhile, the dosage of accelerator is reduced, so that the economic benefit and the social benefit are obvious; the surface smoothness is high, the post-shaping is not needed, the construction period is shortened, and the production efficiency is greatly improved; the construction safety is good, the whole-process remote control operation mechanical construction can be realized, the construction safety is greatly improved, and the possibility of occupational disease hazard occurrence is reduced.

Based on the actual condition of the die cavity between the template mechanism and the excavated rock wall, the spray head assembly can be adaptively adjusted and controlled in various aspects such as displacement, angle, direction, height and the like, so that the control requirement on the spray head assembly in site construction is met.

Simultaneously, the spray head assembly and the template mechanism can be synchronously moved, synchronously rotated and the like, so that the coordination between the template mechanism and the spray head assembly is greatly increased in the process of die spraying, the control difficulty is reduced, and the control accuracy is improved; the mould spraying operation is guaranteed to be realized, and the construction efficiency and the construction quality of the mould spraying pouring of the primary support of the tunnel are improved.

The template mechanism can be used for adjusting independent pitching angles, and corresponding adjustment can be carried out according to target rock walls at different positions so as to form a castable die cavity in an adaptive mode.

The large arm mechanism can realize that the maximum rotation angle of the rotary large arm in the vertical plane is more than 240 degrees, and meets the requirement of large-angle position adjustment of the template mechanism and the spraying and dragging assembly in tunnel die spraying.

The sliding mechanism is matched with the track mechanism through the movable seat mechanism, so that the movable seat mechanism and the large arm mechanism thereon can longitudinally move along with the movable seat mechanism in the track, and continuous die spraying pouring can be carried out in the depth of the excavated rock wall through single movement of the carrier mechanism, thereby avoiding the defect of frequent vehicle moving and greatly improving the construction efficiency.

Meanwhile, the mould spray agent injection system can enable concrete and accelerator to be mixed rapidly, fully and uniformly; and then the mixed concrete can be sprayed into the die cavity to quickly form the support layer, so that the purpose of quickly reinforcing the tunnel rock wall is achieved.

Drawings

FIG. 1 is a schematic diagram of the entire vehicle when the die-casting apparatus is a trolley;

FIG. 2 is a schematic diagram of a connection of a spray head fine tuning mechanism;

FIG. 3 is a schematic diagram of a driving structure of a nozzle holder;

FIG. 4 is a schematic diagram of a spray head movement assembly mechanism;

FIG. 5 is a schematic diagram of a nozzle traversing arm and forearm mechanism connection;

FIG. 6 is a schematic view of a forearm mechanism;

FIG. 7 is a schematic cross-sectional view of the forearm mechanism;

FIG. 8 is a top view of the forearm mechanism;

FIG. 9 is a schematic view of a rotation mechanism of the forearm mechanism;

FIG. 10 is a schematic view of a dobby turret of the dobby mechanism;

FIG. 11 is a schematic view of a horizontal rotation assembly of the large arm turntable;

FIG. 12 is a rear view of the large arm turret;

FIG. 13 is a schematic view of a turret riser of the large arm turret;

FIG. 14 is a schematic illustration of the connection of a swing boom to a mobile assembly mechanism;

FIG. 15 is a schematic view of a swing boom;

FIG. 16 is an enlarged view of a portion of a swing arm;

FIG. 17 is a schematic diagram of a template mechanism I;

FIG. 18 is a schematic diagram II of a template mechanism;

FIG. 19 is a schematic diagram of a template I;

FIG. 20 is a schematic diagram II of a template;

FIG. 21 is a schematic view of the position of the spray head assembly at the entrance of the mold cavity;

FIG. 22 is a block diagram of the feed injection system of example 21;

FIG. 23 is a block diagram of the feed injection system of example 21;

FIG. 24 is a schematic view showing a structure in which a feed pipe is composed of a diameter-variable hard pipe and a non-diameter-variable hard pipe;

FIGS. 25-28 are schematic illustrations of the placement of accelerator filler ports on a material mixer.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present technology will be described in further detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.

Example 1

The novel concrete mould spouts equipment, including carrier mechanism I, gyration big arm 4 and template mechanism 8, template mechanism 8 installs the front end at gyration big arm 4, and under the drive of gyration big arm 4, template mechanism 8 can be close the excavation rock face for template mechanism 8 and excavation rock face form die cavity, for shower nozzle assembly 9 sprays the concrete of temporary support from the direction of horizontal die cavity non-perpendicular to rock face.

The spray head assembly 9 is simultaneously mounted on the front end of the swing boom 4 and is positioned above the template mechanism 8. Further, the front end of the swing big arm 4 is provided with a front arm mechanism 5, the template mechanism is arranged at the front end of the front arm mechanism 5, and the spray head assembly 9 is arranged at the top end of the front arm mechanism 5 and can slide back and forth along the longitudinal direction of the front arm mechanism 5. The top end of the front arm mechanism 5 is provided with a transverse moving arm 6, and a nozzle fixing seat 7 with a nozzle assembly 9 is arranged on the transverse moving arm 6 and can transversely move left and right on the transverse moving arm 6.

The length of the transverse moving arm 6 is larger than the width of the template mechanism 8, so that the spraying path of the spray head assembly 9 can fully cover the transverse die cavity, and the purpose of dead-angle-free spraying pouring is achieved.

The tail end of the rotary large arm 4 is arranged on the large arm rotary table 3, and the large arm rotary table 3 comprises a vertical rotating component which can drive the rotary large arm 4 to relatively rotate in a vertical plane; the large arm turntable 3 further comprises a horizontal rotating component which can drive the rotary large arm 4 to horizontally rotate.

Further, the vertical rotating component of the large arm turntable 3 is a gear rotating component, and can drive the maximum rotating angle of the rotary large arm 4 in the vertical plane to exceed 240 degrees. Compared with the traditional large arm of the engineering vehicle supported by the hydraulic cylinder and providing rotary power, the rotation angle of the traditional large arm at one side can only reach about 60 degrees, and the full-angle die spraying requirement of the die spraying trolley on each section of a tunnel can not be met.

The carrier mechanism I is longitudinally provided with a track mechanism 1 along a vehicle body, the track mechanism 1 is provided with a movable seat mechanism 2, and the large-arm turntable 3 is rotatably arranged on the movable seat mechanism 2; the movable base mechanism 2 is movable in the longitudinal direction of the track mechanism 1 with the arm turret 3.

The movable seat mechanism 2 and the track mechanism 1 are arranged, so that in conventional tunnel construction, the mould spraying support construction of a wider rock face can be realized under the condition of not moving the vehicle, and the problem that the progress of construction is influenced due to frequent vehicle moving is avoided.

The mould spraying trolley further comprises a spraying system II which is connected to the spray head assembly 9 and can automatically convey concrete wet spraying materials to the spray head assembly 9 so that the spray head assembly 9 can spray concrete into a mould cavity.

Example 2

The tunnel supporting layer mould spraying mechanism comprises a spray head assembly 9, a template mechanism 8 and a spraying system II, wherein the spray head assembly 9 is connected to the spraying system II, the spray head assembly 9 is arranged above the template mechanism 8, and the template mechanism 8 and a rock wall can form a mould cavity to be poured; the spraying system II sends concrete to the nozzle assembly 9, and the nozzle assembly 9 sprays the concrete into the mold cavity above the template mechanism 8 in a direction which is not perpendicular to the rock wall. The spray head assembly 9 is connected with a spray head fine adjustment mechanism, and the spray head fine adjustment mechanism can control the angle of the spray head assembly 9 relative to the template mechanism/the mold cavity, so that the angle/direction of spraying the spray head assembly into the mold cavity can be adjusted.

The spray head fine adjustment mechanism comprises a pitching fine adjustment mechanism and a rotating fine adjustment mechanism, wherein the spray head assembly 9 is connected to the pitching fine adjustment mechanism and/or the rotating fine adjustment mechanism; the pitch fine adjustment mechanism can adjust the pitch angle/direction of the spray head assembly 9; the rotation fine adjustment mechanism can adjust the rotation angle/direction of the spray head assembly 9; the pitch and yaw micro-adjustments are interconnected and cooperate to adjust the angle/orientation of the spray head assembly 9 relative to the mold cavity.

The spray head assembly 9 and the template mechanism 8 are arranged on a common frame, and the spray head assembly 9 and the template mechanism 8 can move and/or rotate at the same time by the random frame; the frame and the spraying system II are mounted on a common carrier mechanism and can move together with the carrier mechanism.

The template mechanism 8 comprises a template body 81 and a template pitching adjusting mechanism, wherein the template body 81 is connected with the frame through a template support, and the template pitching adjusting mechanism can adjust the angle between the template body 81 and the rock wall. The template pitching adjusting mechanism is set as a template pitching oil cylinder, the cylinder body of the template pitching oil cylinder is hinged on the template support, and the piston rod of the template pitching oil cylinder is hinged on the template; the hinge point of the piston rod and the template is positioned below the hinge point of the template support and the template, so that the expansion and contraction of the template pitching oil cylinder controls the pitching angle of the template relative to the template support.

Example 3

The present embodiment provides a specific structure of a shower head fine adjustment mechanism on the basis of embodiment 1, the shower head fine adjustment mechanism including a pitch fine adjustment mechanism and a rotation fine adjustment mechanism, wherein the shower head assembly 9 is connected to the pitch fine adjustment mechanism and/or the rotation fine adjustment mechanism; the pitch fine adjustment mechanism can adjust the pitch angle/direction of the spray head assembly 9; the rotation fine adjustment mechanism can adjust the rotation angle/direction of the spray head assembly 9; the pitch and rotation fine tuning mechanisms are connected and matched with each other, and the angle/direction of the nozzle assembly 9 relative to the die cavity is adjusted to ensure the effect and quality of injection casting.

The fine adjustment mechanism further comprises a spray head fixing seat 7, and the rotary fine adjustment mechanism is fixed on the spray head fixing seat 7; the pitching fine tuning mechanism and the spray head assembly 9 are arranged on the rotating fine tuning mechanism, and the pitching fine tuning mechanism and the spray head assembly 9 integrally rotate under the action of the rotating fine tuning mechanism. The pitching fine tuning mechanism is arranged as an oil cylinder, an air cylinder, a gear mechanism or a chain transmission mechanism to adjust the front-back angle/direction of the spray head assembly 9 relative to the die cavity; the rotary fine adjustment mechanism is an oil cylinder, an air cylinder, a gear mechanism or a chain transmission mechanism, so as to adjust the left and right angles/directions of the spray head component relative to the die cavity.

Further, the rotary fine adjustment mechanism is a rotary oil cylinder 73, and a spray head support plate 74 is fixed on the rotating shaft of the rotary oil cylinder 73; the pitch fine adjustment mechanism is a pitch cylinder 75, the pitch cylinder 75 is hinged on the nozzle support plate 74, a piston rod 752 of the pitch cylinder 75 is hinged with the nozzle assembly 9, and the nozzle assembly 9 is hinged on the nozzle support plate 74 (in particular at a hinged support 741 at the lower end), so that the pitch cylinder 75 controls the pitch angle/direction of the nozzle assembly 9.

Further, two sets of pitching cylinders 75 are arranged in parallel, a piston rod 752 of each pitching cylinder 75 is hinged to the spray head assembly 9, and a cylinder body 751 of each pitching cylinder 75 is hinged to the spray head support plate 74. Thus, by introducing the spray head support plate 74, the spray head assembly 9 and the pitching cylinder 75 rotate together with the rotation of the rotating shaft of the rotating cylinder 73, so that the aim of controlling the rotation angle of the spray head assembly 9 is fulfilled.

Example 4

In this embodiment, on the basis of embodiment 2, the head fine adjustment mechanism is connected to the head displacement mechanism, whereby displacement control of the head assembly 9 with respect to the cavity (the die plate assembly 8) is achieved. So that the nozzle fine-tuning mechanism, the nozzle displacement mechanism, the nozzle component 9 and the template mechanism 8 form a nozzle moving assembly mechanism together to control the longitudinal and transverse distance relation between the nozzle component 9 and the mold cavity and the angle/direction relation between the nozzle component and the mold cavity.

The spray head displacement mechanism comprises a longitudinal displacement mechanism and a transverse displacement mechanism; the longitudinal moving mechanism and/or the transverse moving mechanism are/is provided with a spray head fine-tuning mechanism, the longitudinal moving mechanism can adjust the displacement of the spray head fine-tuning mechanism and the spray head assembly 9 in the longitudinal direction, and the transverse moving mechanism can adjust the displacement of the spray head fine-tuning mechanism and the spray head assembly 9 in the transverse direction; the longitudinal moving mechanism and the transverse moving mechanism are mutually connected and matched, and the spray head assembly 9 is controlled to move to any displacement point on the same plane.

The longitudinal moving mechanism adjusts the displacement of the spray head assembly 9 in the longitudinal direction by controlling the spray head fine adjusting mechanism; the lateral movement mechanism adjusts the displacement of the spray head assembly 9 in the transverse direction by controlling the spray head fine adjustment mechanism; the longitudinal moving mechanism and the transverse moving mechanism are connected with each other and cooperate with each other to control the spray head assembly 9 to move to any displacement point on the same plane. Through the comprehensive control of the spray head displacement mechanism and the spray head fine adjustment mechanism, the spray head assembly 9 has the best spraying position and spraying angle/direction relative to the die cavity, the best die spraying effect is achieved, and the die spraying efficiency can be effectively improved.

The transverse moving mechanism comprises a transverse moving arm 6 and a spray head fixing seat 7, wherein a transverse guide piece and a transverse moving driving piece are arranged on the transverse moving arm 6, the transverse guide piece is a transverse groove rail, a transverse sliding groove or a transverse sliding block, and the transverse moving driving piece is a transverse moving rack, a chain, an air cylinder, an oil cylinder or a steel rope; the nozzle fixing seat 7 is provided with a guide wheel/block/groove matched with the transverse guide piece and a driving piece matched with the transverse moving driving piece, so that the nozzle assembly can move in the transverse direction relative to the transverse moving arm 6.

The spray head fine adjustment mechanism is arranged on the spray head fixing seat 7, and the spray head fixing seat 7 is arranged on the transverse moving arm 6 and can drive the spray head fine adjustment mechanism and the spray head assembly 9 to move transversely on the transverse moving arm 6. Mainly solved the lateral longer removal problem of shower nozzle subassembly 9, the shower nozzle of traditional wet spraying manipulator is not sideslip function, so have very high sideslip demand in this patent technology, mainly because, template mechanism 8 and excavation rock wall form wait after the die cavity of pouring, just need make shower nozzle subassembly 9 transversely carry out the removal in a large scale to pour when carrying out the whole die cavity of ability coverage of large width, and then improve and spray pouring efficiency.

The longitudinal moving mechanism is arranged on the front arm mechanism 5, the front arm mechanism 5 is provided with a longitudinal moving seat 56, the transverse moving arm 6 is arranged on the longitudinal moving seat 56, and the front arm mechanism 5 can control the longitudinal moving seat 56, the transverse moving mechanism, the spray head fine adjusting mechanism and the spray head assembly 9 on the longitudinal moving seat to move in the longitudinal direction of the front arm mechanism 5. The forearm mechanism 5 and longitudinally movable mount 56 thus constitute one implementation of a longitudinally movable mechanism, but are not limited thereto.

The traversing arm 6 further comprises a transverse groove rail 61, the nozzle fixing seat 7 comprises a roller connecting seat 71, a roller 711 is arranged on the roller connecting seat 71, and the nozzle fixing seat 7 is integrally connected to the traversing arm 6 through the roller connecting seat 71. Further, the traverse arm 6 is provided with two parallel transverse groove rails 61, including a transverse groove rail 611 at the top end of the traverse arm 6 and a transverse lower groove rail 612 at the bottom end of the traverse arm 6, and the lengths of the transverse groove rail 611 and the transverse lower groove rail 612 are equal to the length of the traverse arm 6. The roller connection seat 71 further comprises a roller connection plate 712, and upper and lower rows of rollers 711 fixed on the roller connection plate 712, and the upper and lower rows of rollers 711 roll in the lateral groove rail 611 and the lateral lower groove rail 612, respectively.

The traverse arm 6 is provided with a traverse rack 63 and is engaged with a traverse drive gear 713 mounted on a roller connecting seat 71. The traversing arm 6 further comprises a detachable traversing front cover plate 621, the traversing front cover plate 621 is provided with a cover plate bar hole 621a along the transverse center line, and the traversing rack 63 is fixed inside the traversing front cover plate 624. The traversing rack 63 may be fixed to the inner side of the traversing front cover 621 by bolts and located above or below the cover bar hole 621 a.

The nozzle fixing seat 7 comprises a square section 7a and a hollow column section 7b, and is fixedly connected by welding, a transverse moving driving motor 714 is arranged in the inner cavity of the hollow column section 7b, a rotating shaft of the transverse moving driving motor 714 penetrates through the roller connecting plate 712 and stretches into the transverse moving arm 6 from a cover plate strip-shaped hole 621a of the transverse moving front cover plate 621, and the transverse moving driving gear 713 is fixed at the free end of the rotating shaft of the transverse moving driving motor 714 and meshed with the transverse moving driving rack 63.

The outer diameter of the traverse driving gear 713 is smaller than the width of the cover plate bar hole 621 a. This can further enhance the lateral stability of the nozzle holder 7. The traverse arm 6 is further provided with a cover plate 622 for protecting the traverse channel 611 from impurities entering the traverse channel 611.

Example 5

The embodiment further provides a specific structure of the forearm mechanism 5, so that the overall structure of the die spraying mechanism is clearer.

The spray head displacement mechanism is connected to the forearm mechanism 5 and comprises a longitudinal movement mechanism and a transverse movement mechanism, the longitudinal movement mechanism is arranged on the forearm mechanism 5, the transverse movement mechanism is arranged on the longitudinal movement mechanism, the fine adjustment mechanism is arranged on the transverse movement mechanism, and the fine adjustment mechanism comprises a pitching angle control mechanism and a rotating angle control mechanism.

The forearm mechanism 5 includes a forearm beam 52 and a rotation mechanism 51, a rotation support 58 is mounted at the bottom of the forearm beam 52, a connection plate 581 is provided at the bottom of the rotation support 58, and the connection plate 581 is fixable to the rotation mechanism 51 (the rotation mechanism 51 of the present embodiment is provided as a rotary speed reducer), and the rotation mechanism may be placed on a frame/trolley, and other similar carriers.

The forearm mechanism 5 comprises a forearm beam 52, a longitudinally movable seat 56 and a transmission member 57, wherein the longitudinally movable seat 56 and the transmission member 57 are fixed on the forearm beam 52, and the longitudinally movable seat 56 can slide along the longitudinal direction of the forearm mechanism 5 under the drive of the transmission member 57 so as to meet the requirement of adjusting the front and rear positions of the spray head assembly 9. The traversing mechanism of the head moving assembly mechanism is integrally fixed to the longitudinally movable base 56 for movement therewith.

The front end portion of the forearm beam 52 is provided with a forearm connection plate 53 for fixing a die plate support 85 of the die plate mechanism 8. The forearm beam 52 is of a hollow structure, a beam top plate 54 is covered at the top end of the forearm beam 52, two longitudinal sliding rails 55 are arranged in parallel along the two longitudinal sides of the beam top plate 54, and a longitudinal moving seat 56 is matched with the two longitudinal sliding rails 55 and can slide along the longitudinal sliding rails 55. Further, the longitudinal slide rail 55 may be replaced by two longitudinal slide plates, and the outer side surfaces of the longitudinal slide plates need to exceed the corresponding outer side edges of the beam top plate 54, so as to facilitate the clamping of the longitudinal slide plates into the sliding grooves of the longitudinal moving seat 56.

The transmission member 57 is mounted in the forearm beam 52, and the beam top plate 54 is provided with a top plate bar hole 541 along the center line thereof, so that the transmission member 57 can realize traction motion on the longitudinal movement seat 56.

The transmission piece 57 is a chain transmission mechanism; if other transmission mechanisms can achieve the same transmission function, the transmission mechanism can also be applied to the forearm mechanism 5, such as direct oil cylinder transmission, air cylinder transmission, gear transmission, rack transmission, belt transmission or rope transmission and the like.

Further, the chain transmission mechanism comprises two chains 571, a guide wheel set, a transmission frame 574 and a driving oil cylinder 576. The two chains 571 are respectively connected with the longitudinal moving seat 56 from the front end and the rear end thereof, the connectors can be positioned on the strip-shaped holes 541 of the top plate, the chains 571 form front-rear oblique pulling transmission for the longitudinal moving seat 56, and have longitudinal pulling force and downward pulling force for the longitudinal moving seat 56, so that the longitudinal moving seat 56 is fixed on the forearm mechanism 5 more firmly, and the chain transmission has extremely high buffering effect on irregular vibration of the spray head assembly 9 during spraying and has better protection effect on the power mechanism.

The guide wheel set comprises two fixed guide wheels and two movable guide wheels, namely a fixed guide front wheel 573a and a fixed guide rear wheel 573b, which are respectively arranged at the front end and the rear end of the inside of the forearm beam 52, and the chain driving wheel is positioned between the fixed guide front wheel 573a and the fixed guide rear wheel 573 b.

The movement guide wheels are a movement guide front wheel 572a and a movement guide rear wheel 572b, respectively; the chain includes a front zipper strip 571a and a rear zipper strip 571b; the moving guide front wheel 572a and the moving guide rear wheel 572b can slide between the fixed guide front wheel 573a and the fixed guide rear wheel 573b in synchronization.

One end of the front zipper 571a is connected with the front end of the longitudinal moving seat 56, and the other end is turned by the fixed guide front wheel 573a, and is tightly fixed on the front end of the inner wall of the forearm beam 52 after bypassing the moving guide front wheel 572 a; one end of the rear fastener chain 571b is connected to the rear end portion of the longitudinally movable seat 56, and the other end is turned by the fixed guide rear wheel 573b, and is fastened to the rear end of the inner wall of the forearm beam 52 after bypassing the movable guide rear wheel 572 b.

The front and rear moving guide wheels 572a and 572b are simultaneously fixed to a frame 574, the frame 574 includes two frame beams 574a on both sides, the front moving guide wheels 572a and the rear moving guide wheels 572b are located between the two frame beams 574a, and frame sliding grooves 575 for sliding the frame are provided on both inner walls of the front arm beam 52.

Further, the driving rack sliding grooves on each side are composed of an upper groove plate 575a and a lower groove plate 575b which are fixed on the inner wall of the forearm beam 52 at intervals and are parallel to each other.

The axles of the front chain drive wheel 572a and the rear chain drive wheel 572b penetrate through the transmission frame beams 574a at two sides, so that two ends of the axle are simultaneously placed in the driving frame sliding grooves 575 at two sides, and the axle plays a role of a guide axle.

Further, rollers 578 are mounted on the free ends of the axles of the front and rear moving guide wheels 572a and 572b, so that the transmission frame 574 can move more smoothly.

The power source of the chain transmission mechanism is provided by a driving oil cylinder 576, and any one end of the transmission frame 574 is connected with a piston rod 576b of the driving oil cylinder 576 so as to provide sliding power for the transmission frame 574. In this embodiment, the cylinder body 576a of the chain drive ram 576 is mounted at the rear end within the forearm beam 52 because the rear end has a longer mounting space for ease of installation and transmission.

The chain drive cylinders 576 are connected to two drive frame beams 574a of the drive frame 574 by connecting shafts 577.

The above-mentioned complete solution that is chain drive mechanism, the special design of this scheme can make the vertical movable seat 56 slide on forearm mechanism 5 in-process, and preceding zip fastener 571a and back zip fastener 571b all can keep the tensioning state, form balanced front and back holding power to vertical movable seat 56, avoided its slip process to appear the dead phenomenon of card for the slip is more stable, has effectively reduced the fault rate.

Example 6

On the basis of embodiment 4, it is often also necessary to provide a carrier mechanism, such as a frame, a dolly, etc., that directly supports and controls the forearm mechanism 5, as well as the mechanisms and components carried by the forearm mechanism 5. So as to achieve the purpose of integrally deflecting and integrally moving the connection mechanisms of the spray head assembly 9, the template mechanism 8, the related spray head displacement mechanism, the spray head fine adjustment mechanism and the like, and achieve the purpose of finer control.

As in the present embodiment, the forearm mechanism 5 is disposed on the trolley, and the injection system ii is integrally mounted on the trolley frame i, where a large arm mechanism is disposed on the trolley frame i of the trolley, the large arm mechanism includes a large arm turntable 3 capable of rotating relatively on a horizontal plane, a rotating large arm 4 capable of rotating relatively on a vertical plane is disposed on the large arm turntable 3, and the forearm mechanism 5 is disposed at the front end of the rotating large arm 4, and based on the relative rotation between the rotating large arm 4, the large arm turntable 3 and the base body of the large arm mechanism, the template mechanism 8 is moved along with the front end of the rotating large arm 4, and the distance and/or angle between the template mechanism 4 and the rock wall are controlled, so that the template mechanism 8 forms a mold cavity with the target rock wall at the target rock wall.

The large arm turntable 3 comprises a turntable frame 31, a horizontal rotating component and a vertical rotating component, the turntable frame 31 is fixed on the trolley through the horizontal rotating component and can horizontally rotate on the trolley, and the large rotating arm 4 is installed on the turntable frame 31 through the vertical rotating component and can rotate in a vertical plane by taking the vertical rotating component as a center.

The turntable frame 31 is of an L-shaped structure, and comprises a turntable bottom plate 311 and a turntable vertical plate 312; the horizontal rotation assembly includes a horizontal large gear 32 and a horizontal rotation driving gear 323 engaged with the horizontal large gear 32. The horizontal large gear 32 includes a second large gear ring 321 and a second ring gear shaft 322, and the horizontal large gear 32 is directly fixed on the bolt hole 281 of the top plate 28 by bolts; the turntable bottom plate 311 is fixed to the second ring gear shaft 322 of the horizontal large gear 32 by bolts. The second large gear ring 321 is provided with uniformly circumferentially spaced bolt connection holes 321a, and the first ring gear shaft 322 is also provided with uniformly circumferentially spaced bolt connection holes 322a.

The horizontal rotation driving gear 323 is installed on a rotation shaft of the horizontal rotation driving motor 324, and the horizontal rotation driving motor 324 is fixed to the turntable base plate 311 downward. The turntable floor 311 includes a motor mounting portion 311a beyond the outer side of the horizontal large gear 32, and the horizontal rotation driving motor 324 is fixed to the motor mounting portion 311a, and the motor mounting portion 311a is connected with the turntable floor 311 main body in a smooth transition.

The vertical rotation assembly includes a vertical large gear 33 and a vertical rotation driving gear 333 engaged with the vertical large gear 33. The vertical large gear 33 further includes a first large gear ring 331 and a first ring gear shaft 332, the first ring gear shaft 332 is fixed on the turntable riser 312, and the swivel large arm 4 is directly fixed on the first large gear ring 331. The first large gear ring 331 and the first ring gear shaft 331 are respectively provided with a plurality of bolt through holes 331a and bolt through holes 332a for fixing at equal intervals in the circumferential direction, that is, the first large gear ring 331 and the rotary large arm 4 are fixedly connected through bolts, and the first ring gear shaft 332 and the turntable riser 312 are fixedly connected through bolts.

The vertical rotation driving gear 333 is mounted on the turntable riser 312 by a vertical rotation driving motor 334. The vertical rotation driving gear 333 has one or more than one, and is distributed around the first large gear ring 331 while being engaged therewith. Further, there are four vertical rotation driving gears 333 symmetrically disposed on the left and right sides of the first large gear ring 331.

The rotary table riser 312 is provided with a fixing operation through hole 312a on the rotary circumference facing the bolt through hole 331a on the first large gear ring 331, so that the bolt is fed from the back of the rotary table riser 312 through the fixing operation through hole 312a, and the fixing between the rotary large arm 4 and the first large gear ring 331 is completed.

A plurality of reinforcing risers 313 are also connected between the turntable bottom plate 311 and the turntable risers 312. The back of the turntable riser 312 is provided with pipeline brackets 314 facing to both sides for supporting and fixing the pump pipe.

The rotary big arm 4 is of a telescopic structure, the front arm mechanism 5 is arranged at the front end of the rotary big arm 4, the rear end of the rotary big arm 4 is fixed on the first big gear ring 331 of the big arm turntable 3, and the maximum rotation angle of the rotary big arm 4 in a vertical plane is larger than 240 degrees.

The rotary large arm 4 is of a multi-section structure and stretches and contracts under the control of a hydraulic part. In this embodiment, three segments are included, including a pivoting rear arm 41, a pivoting middle arm 42, and a pivoting front arm 43. The tail end of the rotary rear arm 41 of the rotary large arm 4 is provided with a box type joint 412, a large arm connecting disc 411 is fixed on the box type joint 412, and the large arm connecting disc 411 is provided with a connecting disc bolt through hole 411a corresponding to the bolt through hole 331a on the second large gear ring 331.

The swing rear arm 41 is provided with a pipe clamp 413 in a longitudinal direction for fixing a concrete delivery pipe, a hydraulic pipe, a high-pressure air pipe, and the like. The pipe clamps 413 include two pipe clamps respectively fixed to the front end and the rear end of the side of the pivoting rear arm 41, and each pipe clamp 413 is fixed to the pivoting rear arm through a pipe clamp support 413 a.

The front end of the swing middle arm 42 and the pipe clamp 413 are provided with a hose guide frame 44 on the same side to support the related hose on the swing big arm 4, and similarly, the hose guide frame 44 may be arranged on the swing front arm 43, but the swing front arm 43 and the swing middle arm 42 are preferably not arranged at the same time, because after the swing big arm 4 is integrally recovered, there may be a problem that the related hose clamp 44 is clamped between the two hose guide frames, which affects the complete recovery of the swing front arm 4. The hose guide 44 includes a guide beam 441 and a bracket 442 fixed to the guide beam 441. The bracket 442 may be provided with more than two hoses that are spaced apart for different functions or orientations. Each bracket 442 includes two downward bracket risers 443 fixed to the bracket beam 441 and a bracket cross tube 444 connecting the two bracket risers 443 at the bottom. The bracket standpipe 443 and the bracket transverse tube 444 are respectively sleeved with a bracket roller 445 to reduce friction damage to related hoses and to enable guiding of related hoses to be smoother.

The front end of the rotary front arm 43 is provided with an upward rotary front arm elbow 431, the top surface of the rotary front arm elbow 431 is provided with an upward rotary front arm connecting seat 432, and a plurality of connecting holes 432a are circumferentially and uniformly arranged on the rotary front arm connecting seat 432 at intervals, so that the template mechanism 8 and the spray head assembly 9 can be conveniently installed.

Further, the front end of the swing big arm 4 is connected with a front arm mechanism 5, the template mechanism 8 and the spray head assembly 9 are both arranged on the front arm mechanism 5, and the front arm mechanism 5 is connected with the front end of the swing big arm 4 through a rotating mechanism 51, and specifically can be connected to a swing front arm connecting seat 432, and the template mechanism 8 and the spray head assembly 9 can rotate around the rotating mechanism 51 under the action of the rotating mechanism 51.

Example 7

On the basis of embodiment 5, a sliding mechanism is added, wherein the sliding mechanism comprises a track mechanism 1 and a movable seat mechanism 2. The large arm turntable 3 of the large arm mechanism is arranged on the movable seat mechanism 2, and the movable seat mechanism 2 is arranged on the track mechanism 1 and can move along the longitudinal direction of the track mechanism 1 with the large arm turntable 3. So that the large arm mechanism and the carrier template mechanism 9, the spray head assembly 8 and other related mechanisms and assemblies on the large arm mechanism can move along with the large arm mechanism in the longitudinal direction of the excavated rock wall, and the die cavity formed between the template mechanism 8 and the rock wall can be adjusted along the longitudinal direction of the rock wall. For example, in the case of preliminary tunnel support injection, a plurality of successive stages of rock walls can be performed by moving the carrier mechanism (e.g., the carriage) one time. The method avoids the defect that single-stage rock wall die spraying can only be carried out by single-time moving, and greatly improves the construction efficiency of die spraying.

Example 8

The embodiment discloses a concrete structure of a template mechanism, wherein the template mechanism can be connected to the forearm mechanism, and is suitable for tunnel support die spraying.

The template mechanism 8 comprises a template 81, a template rotation adjusting mechanism and/or a template pitching adjusting mechanism, wherein the surface of the template 81 is provided with an arc surface, and the template 81 is arranged on the template rotation adjusting mechanism and/or the template pitching adjusting mechanism; wherein the rotation adjusting mechanism can adjust the rotation angle of the template 81, and the template pitch adjusting mechanism can adjust the pitch angle of the template 81.

The template 81 is hinged on the template support 85, the template support 85 is connected with a template pitching adjusting mechanism, and the template pitching adjusting mechanism is connected to the template 81, so that the template pitching adjusting mechanism can adjust the pitching angle of the template 81 relative to the template support 85.

The hinge point of the template support 85 and the template 81 and the connection point of the template pitching angle adjusting mechanism and the template 81 are positioned at different heights in the same vertical direction of the template 81; the template pitching angle adjusting mechanism is set to be an oil cylinder, an air cylinder, a gear mechanism or a chain transmission mechanism.

Example 9

On the basis of the embodiment 7, the template pitching angle adjusting mechanism is set as a template pitching oil cylinder 86, a cylinder body 861 of the template pitching oil cylinder 86 is hinged on a template support 85, and a piston rod 862 of the template pitching oil cylinder is hinged on the template 81; wherein the hinge point of the piston rod 862 and the template 81 is positioned below the hinge point of the template support 85 and the template 81, so that the expansion and contraction of the template pitching cylinder 86 controls the pitching angle of the template 81 relative to the template support 85.

The die plate support 85 is connected to the forearm mechanism 5 through a die plate rotation adjustment mechanism (not shown) so that the die plate rotation adjustment mechanism can adjust the rotation angle of the die plate 81. The template rotation adjusting mechanism is a gear mechanism which is meshed with each other, and the gear mechanism enables the template support 85 and the forearm mechanism 5 to rotate relatively by a certain angle, so that the rotation angle of the template can be adjusted. The template rotation adjusting mechanism is not specifically shown in the figure, but the existing rotating mechanism can be applied to the position so as to realize the rotation control of the template support 85 by taking the axis of the forearm mechanism as the center line, so that the control of the template mechanism 8 is more accurate, and the adaptability to the working condition is stronger. The specific implementation of the template rotation adjustment mechanism may refer to the rotary cylinder 73 of the nozzle tip fine adjustment mechanism, and is a specific implementation.

The arc surface of the template 81 has the same radian as that of the steel arches arranged in the tunnel, and when the template is attached to more than two adjacent steel arches, more than one die cavity is formed between the template 81 and the steel arches including the rock wall. The surface of the form 81 is provided with a spacer 811, the spacer 811 being interposed between the concrete and the surface of the form 81 when the concrete is injected into the mould cavity so that the concrete does not directly contact the surface of the form 81.

Example 10

A mould spray injection system comprises a concrete pumping mechanism, an accelerator pumping mechanism, compressed air supply equipment and a material mixer; the concrete pumping mechanism is connected with the material agent mixer, and concrete is sent into the material agent mixer; the accelerator pumping mechanism is connected with the accelerator mixer, and the accelerator is sent into the accelerator mixer to be mixed with concrete; the compressed air supply equipment is connected with the material and agent mixer and sends compressed air into the material and agent mixer; the concrete and the accelerator are quickly, fully and uniformly mixed in a material mixer, and then power is provided for the ejection of the concrete; the material-agent mixer is connected with a spray head assembly 9. The spray head assembly 9 sprays concrete mixed with accelerator into the mold cavity. As shown in fig. 21, the spray head assembly 9 is disposed at the inlet above the mold cavity.

The material agent mixer II-4 is of a hollow structure, the outlet end of the material agent mixer II-4 is connected with the spray head assembly 9, and the inlet end of the material agent mixer II-4 is connected with the concrete pumping mechanism; the side wall of the material and agent mixer 4 is provided with a plurality of accelerator filling ports II-41, and the accelerator filling ports II-41 are connected with an accelerator pumping mechanism to mix accelerator and concrete in the material and agent mixer II-4. The inlet end or the side wall of the material and agent mixer is also provided with a gas filling port, and the gas filling port is connected with compressed air supply equipment.

And a plurality of accelerator filling ports II-41 arranged on the outer wall of the material and agent mixer II-4, wherein at least two accelerator filling ports II-41 are arranged on the material and agent mixer II-4 at equal intervals.

As shown in FIG. 25, the accelerator filling ports II-41 are provided at equal intervals in the circumferential direction.

As shown in FIG. 26, the accelerator filling ports II-41 are arranged at intervals in the oblique direction, and the interval between the accelerator filling ports II-41 is b from the front end rear section of the material mixer II-4; in the circumferential direction, the interval between the accelerator filling ports II-41 is a; the connecting line of each accelerator filling port II-41 is in a spiral line on the side wall of the material and agent mixer II-4.

The concrete pumping mechanism comprises pumping equipment II-1, a feeding pipe II-2 and a hose II-3, wherein the feeding pipe II-2 is connected to the pumping equipment II-1, and the feeding pipe II-2 is connected to the inlet end of a material mixer II-4 through the hose II-3; the diameter of the inlet end of the feeding pipe II-2 is equal to that of the outlet end of the pumping equipment II-1, the diameter of the outlet end of the feeding pipe II-2 is equal to that of the inlet end of the hose II-3, and the diameter of the inlet end of the feeding pipe II-2 is larger than that of the outlet end of the feeding pipe II-2.

The feeding pipe II-2 comprises a plurality of diameter-variable hard pipes; the diameter-variable hard pipes are sequentially butted along the extending direction of the feeding pipe II-2, so that the diameter of the inlet end of the feeding pipe II-2 is larger than that of the outlet end of the feeding pipe II-2; wherein, along the extending direction of the feeding pipe II-2, the diameter of each diameter-variable hard pipe gradually becomes smaller from the inlet end to the outlet end.

Along the extension direction of the feeding pipe, the diameter of the inlet end of each hard pipe is equal to the diameter of the outlet end of the last hard pipe; the diameter of the outlet end of each hard tube is equal to the diameter of the inlet end of the next hard tube; the butt joint of each hard pipe is connected by pipe clamps or screw threads.

The accelerator pumping mechanism comprises an accelerator storage tank II-7, an accelerator pump and an accelerator filling pipe II-6, wherein accelerator is stored in the accelerator storage tank II-7, the accelerator pump is configured on the accelerator storage tank II-7, the accelerator pump is connected with the accelerator filling pipe II-6, and the accelerator filling pipe II-6 is connected to an accelerator filling port II-41. Furthermore, two accelerator storage tanks II-7 are arranged, so that more accelerators can be stored, and meanwhile, the whole trolley can be balanced, thereby achieving the effect of achieving two purposes

The compressed air supply device comprises a gas compressor II-9 and a gas filling pipe II-8, wherein the gas compressor II-9 is connected with a gas filling port on the material agent mixer through the gas filling pipe II-8.

Example 11

This embodiment is substantially the same as embodiment 10 except that: the accelerator is uniformly mixed with the compressed air and then injected into the material mixer, so that the accelerator can be provided with a certain pressure, can be more fully mixed with the concrete, and also provides power for the ejection of the concrete. As shown in fig. 23, the accelerator pumping mechanism is connected with the mixer II-10, and the accelerator is sent into the mixer II-10; the compressed air supply device is connected with the mixer II-10, and compressed air is sent into the mixer II-10 to be mixed with the accelerator; and the mixer II-10 is connected with the material mixer, and the accelerator mixed with the compressed air is sent into the material mixer to be mixed with the concrete.

The material agent mixer II-4 is of a hollow structure, the outlet end of the material agent mixer II-4 is connected with the spray head II-5, and the inlet end of the material agent mixer II-4 is connected with the concrete pumping mechanism; the side wall of the material and agent mixer II-4 is provided with a plurality of accelerator filling ports II-41, the accelerator filling ports II-41 are connected with a mixer II-10, and the mixer II-10 is respectively connected with an accelerator pumping mechanism and compressed air supply equipment.

The accelerator pumping mechanism comprises an accelerator storage tank II-7, an accelerator pump and an accelerator filling pipe II-6, wherein accelerator is stored in the accelerator storage tank II-7, the accelerator storage tank II-7 is provided with the accelerator pump, the accelerator pump is connected with the accelerator filling pipe II-6, and the accelerator filling pipe II-6 is connected to the coagulant II-10; the mixer II-10 is connected to an accelerator filling port II-41 on the material and agent mixer through a filling pipe II-11.

The compressed air supply device comprises a gas compressor II-9 and a gas filling pipe II-8, wherein the gas compressor II-9 is connected to a mixer II-10 through the gas filling pipe II-8, and the mixer II-10 is connected to an accelerator filling port II-41 on the material mixer through the filling pipe II-11.

Example 12

This embodiment is substantially the same as embodiments 10 and 11, except that: one or more groups of accelerator filling ports II-41 are arranged on the outer wall of the material and agent mixer II-4, wherein the accelerator filling ports II-41 of the same group are positioned on the same circumference.

When the accelerator filling ports II-41 are a group of accelerator filling ports, the accelerator filling ports II-41 are arranged at equal intervals on the same circumference; as shown in fig. 24.

When the accelerator is provided with a plurality of groups of accelerator filling ports II-41, at least two groups of accelerator filling ports II-41 are arranged at equal intervals from the inlet end to the outlet end of the accelerator mixer II-4, and the accelerator filling ports II-41 of the same group are arranged at equal intervals on the same circumference; as shown in fig. 27 and 28.

In this embodiment, the accelerator filling ports ii-41 are multiple groups, and any two adjacent groups of accelerator filling ports ii-41 are aligned or offset on the circumference. As shown in FIG. 27, the accelerator filling ports II-41 are aligned.

As shown in FIG. 28, the accelerator filling ports II-41 are arranged in a staggered manner.

Example 13

This embodiment is substantially the same as embodiments 10, 11, 12 except that: the feeding pipe II-2 comprises a plurality of diameter-variable hard pipes and non-diameter-variable hard pipes; the diameter-variable hard pipe and the non-diameter-variable hard pipe are sequentially butted along the extending direction of the feeding pipe II-2, so that the diameter of the inlet end of the feeding pipe II-2 is larger than that of the outlet end of the feeding pipe II-2; wherein, along the extending direction of the feeding pipe II-2, the diameter of each diameter-variable hard pipe gradually becomes smaller from the inlet end to the outlet end.

As shown in FIG. 24, in this embodiment, the feeding pipe II-2 comprises five sections of rigid pipes, namely a rigid pipe I II-21, a rigid pipe II-22, a rigid pipe III-23, a rigid pipe IV-24 and a rigid pipe V-25, which are sequentially connected, and are steel pipes, wherein the rigid pipe I II-21 and the rigid pipe III-23 are bent pipes, the rigid pipe I II-21 is a non-reducer pipe, the inlet end of the rigid pipe I is connected with the pumping mechanism 1, the outlet end of the rigid pipe I is connected with the reducer pipe II, the rigid pipe III-23 is a reducer pipe or a non-reducer pipe, and the rigid pipe IV-24 and the rigid pipe V-25 are reducer pipes. The diameter of the entire feed tube II-2 decreases in sequence from the inlet end to the outlet end. And the butt joint of each hard pipe is connected through a pipe clamp. The inlet end of the feed pipe II-2 is connected to the pumping mechanism, and the outlet end is connected to the nozzle assembly 9 through a hose II-3. The hose II-3 is a non-reducer pipe.

Example 14

A method of die spraying a tunnel jacket, the method comprising the steps of:

s1: the large arm mechanism controls the template mechanism and the spray head assembly to be close to the target rock wall of the tunnel together, and the angle of the template body relative to the rock wall is adjusted through the template pitching oil cylinder, so that the template body, the rock surface and other accessory mechanisms/accessory structures are matched to form a die cavity for pouring;

s2: the front-back position and the transverse position of the spray head assembly relative to the die cavity are adjusted through the spray head displacement mechanism above the die plate mechanism, so that the spray head assembly is positioned right above the die cavity; then, the pitching angle and the transverse angle of the spray head assembly relative to the die cavity are adjusted through the spray head fine adjustment mechanism, so that the spray head assembly can face the pouring opening at the top of the die cavity at an optimal angle;

s3: starting an injection system, conveying concrete to a nozzle assembly, and injecting the concrete into a die cavity by a nozzle of the nozzle assembly until the die cavity pouring is completed;

s4: when the concrete in the die cavity is solidified, the die plate mechanism is disconnected and moves upwards along the rock wall of the tunnel, a new die cavity is formed according to the method of the step S1, the bottom of the die plate is overlapped with the solidified concrete adjacent to the lower part, and the bottom of the new die cavity is closed by the solidified concrete; repeating the steps S2 and S3, and completing pouring of a new die cavity.

S5: repeating the step S4 to finish the pouring of the support layer mould spraying of the wall of the section Shan Ceyan from bottom to top;

s6: and simultaneously turning the template mechanism and the spray head assembly to the other side of the same section of the tunnel, and repeating the steps S1-S5 to finish the mould spraying pouring of the rock wall at the other side of the section.

And S7, overlapping the tunnel with the supporting concrete layers poured on the left side wall and the right side wall of Duan Ci at the top of the tunnel, supporting and strickling the tunnel by using a template after filling up the overlapping part, and integrally finishing the mould spraying pouring of the tunnel profile of the section.

And after the mould spraying pouring of the section rock wall is completed, repeating the steps SI-S7, and continuously carrying out mould spraying pouring towards the depth of the tunnel.

The steel arches are arranged on the rock wall at intervals, and the templates are attached to more than two adjacent steel arches, so that a die cavity to be poured is formed among the templates, the rock wall, the steel arches and the bottom surface of the tunnel or the adjacent lower part solidified concrete.

In the process of forming the first layer of die cavity at the bottom of each section of the secondary rock wall of the tunnel, the bottom of the template is contacted with the bottom of the tunnel, so that the bottom of the tunnel is sealed to the bottom of the first layer of die cavity.

According to the distance between the target rock wall and the large arm turntable, the template mechanism and the spray head assembly are initially adjusted by the telescopic action of the rotary large arm and the rotation control of the large arm turntable vertical rotation assembly so as to approach the target rock wall.

When a transverse included angle exists between the template and the rock wall, the forearm mechanism is controlled by the rotating mechanism to rotate slowly with the template until the template is parallel to the target rock wall, so as to compensate the included angle between the template and the rock wall.

After the single-side rock wall mold spraying with Duan Ci is completed, the rotary large arm, the spray head assembly and the template mechanism are driven to rotate to the other side for mold spraying pouring under the action of the horizontal rotating assembly of the large arm rotary table.

After the integral mould spraying pouring of the rock wall of one section is completed, the large arm mechanism, the template mechanism on the large arm mechanism and the spray head assembly are moved longitudinally into the tunnel through the sliding of the movable seat mechanism of the sliding mechanism, so that the longitudinal position of the large arm mechanism in the tunnel is suitable for the mould spraying pouring of the next rock wall section.

When the movable seat mechanism slides to the end of the track mechanism and is combined with the rotation compensation of the large arm turntable, the rotation compensation of the large arm turntable and the rotation compensation accumulation of the rotation mechanism can not enable the template and the next section of rock wall to form a castable mold cavity, the movable seat mechanism can be retreated to the initial position of the track mechanism and the trolley can be moved forwards once.

As the template mechanism moves upward, the included angle between the template and the forearm mechanism is continuously reduced, which results in an increased distance between the top of the template mechanism and the spray head assembly, and the longitudinal slide of the spray head can be correspondingly adjusted to slide forward relative to the forearm mechanism, so that the distance between the spray head assembly and the newly formed mold cavity is maintained within a proper range.

In the process of continuously spraying the spray head assembly to the die cavity, the spray head fixing seat continuously moves left and right transversely on the transverse moving arm, so that the spray head assembly on the spray head fixing seat continuously moves left and right at the top of the die cavity.

In the continuous injection process of the nozzle component to the die cavity, when the nozzle component moves to two sides close to the die cavity, the nozzle fine-tuning mechanism controls the nozzle component to rotate left and right at a small angle so as to ensure the concrete pouring quality of the die cavity at the joint of the inner side of the steel arch and avoid hollowing at the joint.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. Novel concrete mould spouts equipment, its characterized in that: the concrete injection device comprises a carrier mechanism, a large arm mechanism, a template mechanism and a spray head assembly, wherein the large arm mechanism is arranged on the carrier mechanism, the large arm mechanism comprises a rotary large arm, the front end of the rotary large arm is provided with the template mechanism and the spray head assembly, the template mechanism can form a die cavity with an excavated rock surface, and the spray head assembly is arranged above the template mechanism and can adjust the concrete injection angle/direction relative to the die cavity; the spray head assembly is connected with a spray head fine adjustment mechanism, the spray head fine adjustment mechanism is connected with a spray head displacement mechanism, the spray head displacement mechanism comprises a transverse moving mechanism and a longitudinal moving mechanism, and the longitudinal moving mechanism adjusts the displacement of the spray head assembly in the longitudinal direction by controlling the spray head fine adjustment mechanism; the lateral movement mechanism adjusts the displacement of the spray head assembly in the transverse direction by controlling the spray head fine adjustment mechanism;

The transverse moving mechanism comprises a transverse moving arm which is transversely arranged relative to the large arm mechanism, and a transverse groove rail and a transverse moving rack are arranged on the transverse moving arm; the spray head fine adjustment mechanism is provided with a roller matched with the transverse groove rail and a gear meshed with the transverse moving rack, so that the spray head fine adjustment mechanism and the spray head assembly can move in the transverse direction relative to the transverse moving arm.

2. The novel concrete molding apparatus of claim 1, wherein: the spray head assembly is also connected with a spray system, the spray system comprises a concrete pumping mechanism, an accelerator pumping mechanism, compressed air supply equipment and a material agent mixer, the concrete pumping mechanism, the accelerator pumping mechanism and the compressed air supply equipment are respectively connected to the material agent mixer through pipelines, and the material agent mixer is connected to the spray head assembly; the material agent mixer mixes the concrete with the accelerator, and the compressed air sprays the concrete mixed with the accelerator to the die cavity through the nozzle assembly.

3. The novel concrete molding apparatus of claim 2, wherein: the accelerator pumping mechanism is connected with the flow mixer and sends accelerator into the flow mixer; the compressed air supply device is connected with the mixer, and sends compressed air into the mixer to be mixed with the accelerator and atomized; the mixer is connected with the material and agent mixer, and the atomized accelerator mixed with the compressed air is sent into the material and agent mixer to be mixed with concrete.

4. The novel concrete molding apparatus of claim 1, wherein: the template mechanism comprises a template, a template rotation adjusting mechanism and/or a template pitching adjusting mechanism, wherein the surface of the template is provided with an arc-shaped surface, and the template is arranged on the template rotation adjusting mechanism and/or the template pitching adjusting mechanism; the rotation adjusting mechanism can adjust the rotation angle of the template, and the template pitching adjusting mechanism can adjust the pitching angle of the template.

5. The novel concrete molding apparatus of claim 4, wherein: the template is a combined mechanism and is formed by connecting more than two single templates in a manner of being foldable/folded in the transverse direction and/or the vertical direction; the integral template formed after the template group is unfolded can be matched with a rock surface to form at least one die cavity; and an opening and closing control mechanism is arranged between the adjacent single templates.

6. Novel concrete spraying equipment according to one of claims 1 to 5, characterized in that: the fine adjustment mechanism comprises a pitching angle control mechanism and a rotating angle control mechanism, and the pitching angle control mechanism adjusts the pitching angle/direction of the spray head assembly; the rotation angle control mechanism controls the rotation angle/direction of the spray head assembly; the pitch angle control mechanism and the rotation angle control mechanism are mutually connected and matched, so that the angle/direction of the spray head assembly for spraying concrete into the die cavity is not perpendicular to the rock surface.

7. The novel concrete molding apparatus of claim 6, wherein: the rotary angle control mechanism is provided with a rotary oil cylinder, a spray head support plate is arranged on a rotating shaft of the rotary oil cylinder, the spray head assembly is hinged to the spray head support plate, the pitching angle control mechanism is provided with a pitching oil cylinder, a cylinder body of the pitching oil cylinder is hinged to the spray head support plate, and a piston rod of the pitching oil cylinder is hinged to the spray head assembly.

8. The novel concrete molding apparatus of claim 6, wherein: the longitudinal moving mechanism and the transverse moving mechanism are connected with each other and are matched with each other to control the spray head assembly to move to any displacement point on the same plane.

9. Novel concrete spraying equipment according to one of claims 1 to 5, characterized in that: the large arm mechanism further comprises a large arm rotary table, the large arm rotary table comprises a vertical rotary assembly and a horizontal rotary assembly, and the vertical rotary assembly is connected with the rotary large arm and controls the rotary large arm to relatively rotate on a vertical surface; the horizontal rotating assembly is arranged on the carrier mechanism and controls the large arm mechanism to rotate at any angle in the horizontal plane.

10. The novel concrete molding apparatus of claim 9, wherein: the carrier mechanism is arranged as a trolley, wherein a sliding mechanism is longitudinally arranged on a trolley frame, the large arm mechanism is arranged on the sliding mechanism, and the sliding mechanism can control the large arm mechanism to move along the longitudinal direction of the carrier mechanism.