CN114016416B - Vehicle-mounted two-component material nozzle assembly and spraying flow control method - Google Patents
Vehicle-mounted two-component material nozzle assembly and spraying flow control method Download PDFInfo
- Publication number
- CN114016416B CN114016416B CN202111330495.0A CN202111330495A CN114016416B CN 114016416 B CN114016416 B CN 114016416B CN 202111330495 A CN202111330495 A CN 202111330495A CN 114016416 B CN114016416 B CN 114016416B
- Authority
- CN
- China
- Prior art keywords
- spray
- spraying
- flow
- flow control
- vehicle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000463 material Substances 0.000 title claims abstract description 144
- 238000005507 spraying Methods 0.000 title claims abstract description 85
- 238000000034 method Methods 0.000 title claims description 28
- 239000007921 spray Substances 0.000 claims abstract description 148
- 230000005540 biological transmission Effects 0.000 claims abstract description 35
- 238000002347 injection Methods 0.000 claims description 48
- 239000007924 injection Substances 0.000 claims description 48
- 238000010438 heat treatment Methods 0.000 claims description 25
- 239000004615 ingredient Substances 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000012544 monitoring process Methods 0.000 claims description 2
- 238000002156 mixing Methods 0.000 abstract description 7
- 238000000889 atomisation Methods 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 230000001360 synchronised effect Effects 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 239000002346 layers by function Substances 0.000 description 2
- 239000005060 rubber Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000004506 ultrasonic cleaning Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/16—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials for applying or spreading liquid materials, e.g. bitumen slurries
- E01C19/17—Application by spraying or throwing
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/16—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials for applying or spreading liquid materials, e.g. bitumen slurries
- E01C19/17—Application by spraying or throwing
- E01C19/174—Apparatus with pump-discharge
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/16—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials for applying or spreading liquid materials, e.g. bitumen slurries
- E01C19/17—Application by spraying or throwing
- E01C19/176—Spraying or throwing elements, e.g. nozzles; Arrangement thereof or supporting structures therefor, e.g. spray-bars
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/08—Damp-proof or other insulating layers; Drainage arrangements or devices ; Bridge deck surfacings
- E01D19/083—Waterproofing of bridge decks; Other insulations for bridges, e.g. thermal ; Bridge deck surfacings
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Machines (AREA)
Abstract
The vehicle-mounted double-component material nozzle assembly comprises two parts which are symmetrically arranged front and back, wherein each part is provided with a plurality of groups of spraying units which are transversely arranged, and a spray head, a flow control valve, a miniature motor and a screw nut transmission mechanism are arranged in each spraying unit; the output shaft of the miniature motor is fixedly connected with a screw in the screw nut transmission mechanism; the spray head is provided with a spray hole, the feed inlet end of the spray hole is communicated with the material conveying pipeline, and the discharge outlet end of the spray hole is provided with an arc-shaped surface guide port; the flow control valve is a cylindrical rod piece, one end of the cylindrical rod piece is fixedly assembled with a rectangular nut in the screw nut transmission mechanism, and the other end of the cylindrical rod piece is a ball valve core extending into a flow control valve moving channel of the spray head. The invention realizes the atomization mixing of the two-component materials under the working conditions of different vehicle speeds and ground temperatures and uniformly sprays the two-component materials on the concrete bridge deck, thereby achieving the purpose of ensuring the paving quality of the waterproof bonding structure of the concrete bridge deck.
Description
Technical Field
The invention relates to a two-component material nozzle assembly and a spraying flow control method, in particular to a two-component material nozzle assembly arranged below the tail part of a spraying engineering truck and a spraying flow control method capable of ensuring uniform spraying of materials under different vehicle speeds and ground temperature conditions.
Background
The multi-medium strong-adhesion waterproof layer is a novel concrete bridge surface waterproof adhesion structure, and is a composite interlayer functional layer formed by spraying (or sprinkling) double-component reactive resin, rubber modified asphalt, fiber and rubber modified asphalt to a construction surface, and finally sprinkling single-particle-size aggregate, and performing physical and chemical reactions of various materials. The paving of the multi-medium strong-adhesion waterproof layer is realized by a special construction device, namely a multi-medium strong-adhesion synchronous sprinkling vehicle, and the multi-medium strong-adhesion synchronous sprinkling vehicle is also provided with a double-component material automatic sprinkling system so as to realize the atomization and mixing of the double-component materials and uniformly sprinkle the double-component materials on a concrete bridge deck.
The traditional two-component spraying system adopts a mode of mixing inside a spray gun, belongs to limited impact, has lower mixing efficiency and smaller output flow, cannot be directly applied to a multi-medium strong-bonding synchronous spraying vehicle, therefore, the mixing mode of materials in the two-component spraying system needs to be improved, meanwhile, the two-component material nozzle assembly needs to be optimally designed, and a spraying flow control method capable of ensuring uniform spraying of the materials under different vehicle speeds and ground temperature working conditions is innovated.
Disclosure of Invention
The invention provides a vehicle-mounted double-component material nozzle assembly and a material spraying control method, and aims to realize the atomization and mixing of double-component materials under different working conditions of vehicle speed and ground temperature through the improvement of a material nozzle assembly structure and the innovative design of a material spraying flow control method, and uniformly spray the double-component materials on a concrete bridge deck so as to achieve the aim of guaranteeing the paving quality of a waterproof bonding structure of the concrete bridge deck.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a vehicle-mounted two-component material nozzle assembly comprises two parts which are arranged in a front-back symmetrical way and are respectively communicated with a material tank of a material A and a material B through a material conveying pipeline, wherein each part is provided with a plurality of groups of spraying units which are transversely arranged, and a spray head, a flow control valve, a micro motor and a screw nut transmission mechanism are arranged in each spraying unit; the miniature motor is arranged below the cross beam at the tail part of the spraying vehicle through a fixed bracket, and an output shaft of the miniature motor is fixedly connected with a screw rod in the screw rod nut transmission mechanism; the screw rod in the screw rod nut transmission mechanism is provided with a thread circle number scale, and a nut matched with the screw rod is a rectangular nut; the spray head is provided with a spray hole, a feed inlet end of the spray hole is communicated with the material conveying pipeline, a discharge outlet end of the spray hole is provided with an arc-shaped surface guide port, and a flow control valve moving channel which is vertically intersected with the spray hole is arranged in the middle of the spray hole; the flow control valve is a cylindrical rod piece, one end of the cylindrical rod piece is fixedly assembled with a rectangular nut in the screw nut transmission mechanism, and the other end of the cylindrical rod piece is a ball valve core extending into a flow control valve moving channel of the spray head.
Above-mentioned on-vehicle two ingredient material nozzle assembly still be equipped with electromagnetic heating pipe in the injection unit, electromagnetic heating pipe and the jet orifice feed inlet end sealing connection of shower nozzle.
Above-mentioned on-vehicle two ingredient material nozzle assembly still be equipped with flow control valve supporting seat in the injection unit, flow control valve supporting seat passes through the fixed bolster and installs below the spray truck afterbody crossbeam, is equipped with flow control valve through the hole on flow control valve supporting seat to set up slide bearing in flow control valve through the hole.
In each part of the vehicle-mounted two-component material nozzle assembly which is arranged in a front-back symmetrical way, the number of the spraying units which are transversely arranged is not less than four groups, and the spraying units are arranged on a spraying pipe which is communicated with a material conveying pipeline at a set angle.
Above-mentioned on-vehicle two ingredient material nozzle assembly all is equipped with the material pump in the material conveying pipeline with A material and B material jar intercommunication.
A two-component material spraying flow control method relies on a spraying vehicle provided with the vehicle-mounted two-component material nozzle assembly, when A, B two materials are sprayed at different speeds, A, B are atomized and mixed through the two-component material nozzle assembly, the flow condition of a spray head in each group of spraying units is monitored in real time by means of a flow sensor, the monitored flow information of the spray head in each group of spraying units is compared with a spray head flow set value under the working condition, a PID control system controls a micro motor in each group of spraying units to act according to the difference condition of the two materials, the opening degree of a flow control valve is controlled, the flow of the spray head is adjusted, and specific control parameters are as follows:
in an initial state, the vehicle speed is 0km/h, a rectangular nut in a screw nut transmission mechanism is positioned at the forefront end of a screw, the screw thread scale is 0, at the moment, a ball valve core of a flow control valve in an injection unit completely seals an injection hole, and no material is sprayed out from a spray head;
when the speed of the vehicle is increased to 0-2 km/h, the micro motor drives the screw nut transmission mechanism to operate, so that the rectangular nut moves backwards to the position where the screw thread scale is 0-4 circles, at the moment, the ball head valve core of the flow control valve in the injection unit partially seals the injection hole, and the flow of the material sprayed from the spray heads of each group of injection units is 0-222 ml/s;
when the speed of the vehicle is increased to 2-4 km/h, the micro motor drives the screw nut transmission mechanism to operate, so that the rectangular nut moves backwards to the position where the screw thread scale is 4-8 circles, at the moment, the ball head valve core of the flow control valve in the injection unit partially seals the injection hole, and the flow of the material sprayed out of the spray heads of each group of injection units is 222-444 ml/s;
when the speed of the vehicle is increased to 4-6 km/h, the micro motor drives the screw nut transmission mechanism to operate, so that the rectangular nut moves backwards to the position where the screw thread scale is 8-12 circles, at the moment, the ball head valve core of the flow control valve in the injection unit partially seals the injection hole, and the flow of the material sprayed out of the spray heads of each group of injection units is 444-666 ml/s;
when the speed of the vehicle is increased to 6-8 km/h, the micro motor drives the screw nut transmission mechanism to operate, so that the rectangular nut moves backwards to the position where the screw thread scale is 12-16 circles, at the moment, the ball head valve core of the flow control valve in the injection unit partially seals the injection hole, and the flow of the material sprayed out of the spray heads of each group of injection units is 666-888 ml/s.
According to the control method for the spraying flow of the two-component material, the spraying angle and the spraying coverage area can be controlled according to the position of the spray head in each spraying unit, and specific control parameters are as follows:
when the distance b=300 mm between the spray heads in two adjacent spray units and the distance H=250 mm between the spray heads and the spray ground, controlling the spray angle 2α=45-49.6 degrees of each spray head to ensure that the area of the spray coverage area is 2.4-2.6 m 2 ；
When the distance b=300 mm between the spray heads in two adjacent spray units and the distance H=300 mm between the spray heads and the spray ground, controlling the spray angle 2α=38.1-42.1 degrees of each spray head to ensure that the area of the spray coverage area is 2.6-2.8 m 2 ；
When the distance b=350 mm between the spray heads in two adjacent spray units and the distance H=250 mm between the spray heads and the spray ground, the spray angle 2α=54.7-60 degrees of each spray head is controlled, so that the area of the spray coverage area in unit time is 2.8-3 m 2 ；
When the distance b=350 mm between the spray heads in two adjacent spray units and the distance H=300 mm between the spray heads and the spray ground, the spray angle 2α=46.7-51.4 degrees of each spray head is controlled, so that the area of the spray coverage area in unit time is 3-3.2 m 2 。
According to the control method for the spraying flow of the two-component material, the temperature of the material sprayed to the ground is monitored through the infrared temperature measuring device arranged at the bottom of the spraying vehicle, and the specific control parameters are as follows:
when the monitored total temperature loss delta t is less than or equal to 2 ℃, controlling the power of the electromagnetic heating pipe to be 1000W;
when the monitored total temperature loss is more than or equal to 4 ℃ and delta t is more than 2 ℃, controlling the power of the electromagnetic heating pipe to be 1500W;
when the monitored total temperature loss is more than or equal to 6 ℃ and delta t is more than 4 ℃, controlling the power of the electromagnetic heating pipe to be 2000W;
when the monitored total temperature loss is 8 ℃ or more and delta t is more than 6 ℃, controlling the power of the electromagnetic heating pipe to 2500W;
when the monitored total temperature loss is more than or equal to 10 ℃ and delta t is more than 8 ℃, controlling the power of the electromagnetic heating pipe to be 3000W.
According to the control method for the spraying flow of the double-component material, the ultrasonic generating device is additionally arranged on the AB material tank, so that the ultrasonic waves fed into the material tank stir the material, and the conveying pipeline and the spray nozzle are cleaned along with the conveying of the material.
According to the method for controlling the spraying flow of the two-component materials, the ultrasonic generator is an ultrasonic generator with adjustable frequency, and the requirements of smooth transmission in different component materials are met by adjusting the frequency of the ultrasonic generator.
The invention provides a vehicle-mounted double-component material nozzle assembly, which can drive a ball head valve core of a flow control valve to move back and forth through a micro motor and a screw nut transmission mechanism, so as to realize the adjustment of the flow area of spray holes of spray heads in each group of spray units, thereby completing the control of the spray flow of the spray heads. The invention also provides a control method for the spraying flow of the two-component material matched with the vehicle-mounted two-component material nozzle assembly, which is characterized in that the flow condition of the spray heads in each group of spray units is monitored in real time through a flow sensor, the monitored flow information of the spray heads in each group of spray units is compared with the flow set value of the spray heads under the working condition, and then the PID control system controls the micro motor in each group of spray units to act according to the difference value of the two flow information, so that the opening degree of a flow control valve is adjusted, and the flow control of the spray heads in each group of spray units is completed. In addition, the control method of the spraying flow of the two-component material can also control the spraying angle and the spraying coverage area according to the position of the spray head in each spraying unit; the infrared temperature measuring device arranged at the bottom of the spraying vehicle is used for monitoring the temperature of the material sprayed to the ground, and the working state of the electromagnetic heating pipe in each spraying unit is controlled according to the temperature difference between the sprayed material and the charging bucket, so that the loss of the temperature before and after the spraying of the material is compensated, the physical and chemical reactions of the two-component material under the set temperature condition are ensured, and the composite interlayer functional layer of the multi-medium strong-adhesion waterproof layer is formed. In a word, the invention realizes the two-component material atomization mixing and even spraying on the concrete bridge deck under the working conditions of different vehicle speeds and ground temperatures by improving the structure of the material nozzle assembly and designing the material injection flow control method, thereby achieving the purpose of ensuring the paving quality of the waterproof bonding structure of the concrete bridge deck.
Drawings
FIG. 1 is a schematic illustration of a vehicle-mounted two-component material nozzle assembly of the present invention in a material spraying system;
FIG. 2 is a side view of FIG. 1;
FIG. 3 is a schematic diagram of the structure of the spraying unit in the vehicle-mounted two-component material nozzle assembly according to the invention;
FIG. 4 is a schematic diagram of a spray head configuration;
FIG. 5 is a view in the K-direction of FIG. 4;
FIG. 6 is a schematic view of the M-M cross-section structure of FIG. 5;
FIG. 7 is a schematic view of the N-N cross-section structure of FIG. 5;
FIG. 8 is a schematic diagram of nozzle flow adjustment;
FIG. 9 is a schematic view of a material spraying state;
fig. 10 is a side view of fig. 9.
The list of the reference numerals in the drawings is:
1. an ultrasonic wave generating device;
2. a charging bucket;
3. a material flow pump;
4. a spray tube;
5. the device comprises an injection unit, 5-1, a spray head, 5-1-1, a flow control valve moving channel, 5-1-2, an injection hole, 5-1-3, an arc-shaped surface guide port, 5-2, an electromagnetic heating pipe, 5-3, a flow control valve supporting seat, 5-4, a fixed bracket, 5-5, a micro motor, 5-6, a lead screw, 5-7, a rectangular nut, 5-8 and a flow control valve.
Detailed Description
The invention will be further described with reference to the accompanying drawings and specific examples.
Referring to fig. 1 and 2, the vehicle-mounted two-component material nozzle assembly of the invention comprises two parts which are symmetrically arranged front and back and are respectively communicated with a material tank 2 of a material A and a material B through material conveying pipelines, wherein each part is provided with at least four groups of spraying units 5 which are transversely arranged, the spraying units 5 are arranged on a spraying pipe 5 communicated with the material conveying pipelines at a set angle, and a material flow pump 3 is arranged in the material conveying pipelines communicated with the material tank 2 of the material A and the material B.
Referring to fig. 3, 4, 5, 6 and 7, the vehicle-mounted two-component material nozzle assembly of the invention is provided with a spray head 5-1, an electromagnetic heating pipe 5-2, a flow control valve 5-8, a flow control valve supporting seat 5-3, a micro motor 5-5 and a screw nut transmission mechanism in each spray unit 5; the miniature motor 5-5 is arranged below the cross beam at the tail part of the spraying vehicle through the fixed bracket 5-4, and an output shaft of the miniature motor is fixedly connected with a screw rod 5-6 in the screw rod nut transmission mechanism; the screw rod 5-6 in the screw rod nut transmission mechanism is provided with a thread circle number scale, and a nut matched with the screw rod is a rectangular nut 5-7; the spray head 5-1 is provided with a spray hole 5-1-2, a feed inlet end of the spray hole 5-1-2 is communicated with a material conveying pipeline through an electromagnetic heating pipe 5-2 in sealing connection, an arc-shaped surface guide port 5-1-3 is arranged at a discharge outlet end of the spray head, and a flow control valve moving channel 5-1-1 which is vertically intersected with the spray hole 5-1-2 is arranged at the middle part of the spray hole; the flow control valve 5-8 is a cylindrical rod piece, one end of the cylindrical rod piece is fixedly assembled with a rectangular nut 5-7 in the screw nut transmission mechanism, and the other end of the cylindrical rod piece is a ball valve core extending into a flow control valve moving channel 5-1-1 of the spray head 5-1; the flow control valve supporting seat 5-3 is arranged below the cross beam at the tail part of the spraying vehicle through the fixed bracket 5-4, the flow control valve supporting seat 5-3 is provided with a flow control valve penetrating hole, and a sliding bearing is arranged in the flow control valve penetrating hole.
Referring to fig. 4, 5 and 9, the discharge port end of the spray head 5-1 in each spray feeding unit 5 is provided with an arc-shaped surface guide port 5-1-3, so that the impact energy of materials can be softened through the arc-shaped surface guide port 5-1-3, the spray angle is effectively controlled, the spray fan angle tends to be stable, the phenomenon of uneven spraying caused by concentrated material spray force is avoided, and the material spray quality is improved.
Referring to fig. 8 and 9, the control method of the spraying flow of the two-component material according to the invention relies on a spraying vehicle equipped with the vehicle-mounted two-component material nozzle assembly, and according to the flow calculation formula:
Q=（a*v*h*t）/ρ
where Q- -the flow value through the nozzle (m 3 /s）；
a-the spray width (m) of a group of spray heads;
v- -the travel speed (m/s) of the spray vehicle;
h, spraying the thickness (m) of the material on the road surface;
t- - -time of travel(s) of the spreader
Rho- - -AB density (kg/m) 3 ）；
In this example, a=0.4m, h=0.001 m, ρ=1 kg/m is known 2 T=1s; the relationship between the flow rate and the travel speed of the sprinkler was deduced to be q=0.0004 v.
According to the deduction result, the opening of the flow control valve 5-8 corresponding to different vehicle speed working conditions and the flow ejected by the nozzle 5-1 of each group of the ejecting units 5 can be calculated, and specific control parameters are as follows:
in an initial state, the vehicle speed is 0km/h, a rectangular nut 5-7 in a screw nut transmission mechanism is positioned at the forefront position of a screw 5-6, the screw thread scale is 0, at the moment, a ball valve core of a flow control valve 5-8 in an injection unit 5 completely seals an injection hole 5-1-2, and no material is injected from a nozzle;
when the speed of the vehicle is raised to 0-2 km/h, the miniature motor 5-5 drives the screw nut transmission mechanism to operate, so that the rectangular nut 5-7 moves backwards to the position where the screw thread scale is 0-4 circles, at the moment, the ball valve core of the flow control valve 5-8 in the injection unit 5 partially plugs the injection hole 5-1-2, and the flow of the material sprayed from the spray heads 5-1 of each group of injection units 5 is 0-222 ml/s;
when the speed of the vehicle is increased to 2-4 km/h, the miniature motor 5-5 drives the screw nut transmission mechanism to operate, so that the rectangular nut 5-7 moves backwards to the position where the screw thread scale is 4-8 circles, at the moment, the ball valve core of the flow control valve 5-8 in the injection unit 5 partially seals the injection hole 5-1-2, and the flow of the material sprayed from the spray heads 5-1 of each group of injection units 5 is 222-444 ml/s;
when the speed of the vehicle is increased to 4-6 km/h, the miniature motor 5-5 drives the screw nut transmission mechanism to operate, so that the rectangular nut 5-7 moves backwards to the position where the screw thread scale is 8-12 circles, at the moment, the ball valve core of the flow control valve 5-8 in the injection unit 5 partially seals the injection hole 5-1-2, and the flow of the material sprayed from the spray heads 5-1 of each group of injection units 5 is 444-666 ml/s;
when the speed of the vehicle is increased to 6-8 km/h, the miniature motor 5-5 drives the screw nut transmission mechanism to operate, so that the rectangular nut 5-7 moves backwards to the position where the screw thread scale is 12-16 circles, at the moment, the ball valve core of the flow control valve 5-8 in the injection unit 5 partially seals the injection hole 5-1-2, and the flow of the material sprayed from the spray heads 5-1 of each group of injection units 5 is 666-888 ml/s.
Referring to fig. 9 and 10, the control method of the spraying flow of the two-component material according to the present invention can also control the spraying angle and the spraying coverage area according to the position of the spray head 5-1 in each spraying unit 5, and specific control parameters are shown in the following table:
referring to fig. 3, 9 and 10, according to the method for controlling the spraying flow of the two-component material, the temperature of the material sprayed to the ground is monitored by the infrared temperature measuring device arranged at the bottom of the spraying vehicle, because the temperature field is uneven, such as the working conditions of local pavement water accumulation, tree shadow scattering and the like, the on-site pavement has reactive difference and coating curing behavior difference, the working state of the electromagnetic heating pipe in each spraying unit is controlled according to the temperature difference between the sprayed material and the spraying point in the charging tank, so as to compensate the loss of the temperature before and after spraying the material, ensure that the two-component material performs physical and chemical reactions under the set temperature condition, and further improve the quality uniformity of the coating, in the embodiment, the maximum output power of the electromagnetic heating pipe 5-2 is 3000W, and specific control parameters are as follows:
when the monitored temperature loss delta t is less than or equal to 2 ℃, controlling the power of the electromagnetic heating pipe 5-2 to be 1000W;
when the monitored temperature loss is more than or equal to 4 ℃ and delta t is more than 2 ℃, controlling the power of the electromagnetic heating pipe 5-2 to be 1500W;
when the monitored temperature loss is more than or equal to 6 ℃ and delta t is more than 4 ℃, controlling the power of the electromagnetic heating pipe 5-2 to be 2000W;
when the monitored temperature loss is more than or equal to 8 ℃ and delta t is more than 6 ℃, controlling the power of the electromagnetic heating pipe 5-2 to 2500W;
when the monitored temperature loss is more than or equal to 10 ℃ and delta t is more than 8 ℃, the power of the electromagnetic heating pipe 5-2 is controlled to be 3000W.
Referring to fig. 1 and 2, the method for controlling the spraying flow of the two-component material according to the invention further comprises the step of adding an ultrasonic generating device 1 on a charging bucket 2 of A, B two materials, wherein the ultrasonic generating device 1 is an ultrasonic generator with adjustable frequency, and the ultrasonic generator can meet the requirements of smooth transmission in different component materials by adjusting the frequency, so that the ultrasonic waves introduced into the charging bucket 2 stir the materials, and the ultrasonic cleaning can be applied to objects with complex surface shapes and difficult cleaning (such as precise objects with holes, slits, grooves, micropores, dark holes and the like on the surface), so that the ultrasonic waves introduced into the charging bucket 2 can be used for cleaning a conveying pipeline and a nozzle 5-1 along with the transmission of the materials.
Claims (10)
1. The utility model provides a on-vehicle two ingredient material nozzle assembly, includes two parts of front and back symmetrical arrangement, and they communicate with material tank (2) of A material and B material respectively through material conveying pipeline, and wherein every part all is equipped with a plurality of groups of injection unit (5) of transverse arrangement, characterized by: a spray head (5-1), a flow control valve (5-8), a micro motor (5-5) and a screw nut transmission mechanism are arranged in each spray unit (5); the miniature motor (5-5) is arranged below the cross beam at the tail part of the spraying vehicle through the fixed bracket (5-4), and an output shaft of the miniature motor is fixedly connected with a screw (5-6) in the screw nut transmission mechanism; the screw (5-6) in the screw-nut transmission mechanism is provided with thread circle number scales, and a nut matched with the screw is a rectangular nut (5-7); the spray head (5-1) is provided with a spray hole (5-1-2), a feed port end of the spray hole (5-1-2) is communicated with a material conveying pipeline, an arc-shaped surface guide port (5-1-3) is arranged at a discharge port end of the spray hole, and a flow control valve moving channel (5-1-1) which is vertically intersected with the spray hole (5-1-2) is arranged at the middle part of the spray hole; the flow control valve (5-8) is a cylindrical rod piece, one end of the cylindrical rod piece is fixedly assembled with a rectangular nut (5-7) in the screw nut transmission mechanism, and the other end of the cylindrical rod piece is a ball valve core extending into a flow control valve moving channel (5-1-1) of the spray head (5-1).
2. The vehicle-mounted two-component material nozzle assembly of claim 1, wherein: an electromagnetic heating pipe (5-2) is further arranged in the spraying unit (5), and the electromagnetic heating pipe (5-2) is in sealing connection with the feed inlet end of the spraying hole (5-1-2) of the spray head (5-1).
3. The vehicle-mounted two-component material nozzle assembly of claim 2, wherein: the spraying unit (5) is also provided with a flow control valve supporting seat (5-3), the flow control valve supporting seat (5-3) is arranged below the cross beam at the tail part of the spraying vehicle through a fixed bracket (5-4), the flow control valve supporting seat (5-3) is provided with a flow control valve penetrating hole, and a sliding bearing is arranged in the flow control valve penetrating hole.
4. A vehicle-mounted two-component material nozzle assembly according to claim 2 or 3, characterized in that: in each part of the two-stage horizontal spraying device, the number of the spraying units (5) arranged transversely is not less than four groups, and the spraying units are arranged on the spraying pipe (5) communicated with the material conveying pipeline at a set angle.
5. The vehicle-mounted two-component material nozzle assembly of claim 1, wherein: and material flow pumps (3) are arranged in the material conveying pipelines communicated with the material A and the material B material tanks (2).
6. A control method for the spraying flow of a double-component material is characterized by comprising the following steps: the spraying vehicle is provided with the vehicle-mounted two-component material nozzle assembly according to any one of claims 1 to 5, when A, B two materials are sprayed at different speeds, A, B two materials are atomized and mixed through the two-component material nozzle assembly, the flow condition of a spray head (5-1) in each group of spraying units (5) is monitored in real time by means of a flow sensor, the monitored flow information of the spray head (5-1) in each group of spraying units (5) is compared with a spray head flow set value under the working condition, a PID control system controls a miniature motor in each group of spraying units (5) to act according to the difference condition of the two materials, so that the opening degree of a flow control valve (5-8) is controlled, and the flow of the spray head is adjusted, wherein specific control parameters are as follows:
in an initial state, the vehicle speed is 0km/h, a rectangular nut (5-7) in a screw nut transmission mechanism is positioned at the forefront position of a screw (5-6), the screw thread scale of the screw is 0, at the moment, a ball valve core of a flow control valve (5-8) in an injection unit (5) completely seals an injection hole (5-1-2), and no material is injected from a nozzle;
when the speed of the vehicle is increased to 0-2 km/h, the miniature motor (5-5) drives the screw nut transmission mechanism to operate, so that the rectangular nut (5-7) moves backwards to the position where the screw thread scale is 0-4 circles, at the moment, the ball head valve core of the flow control valve (5-8) in the injection unit (5) partially seals the injection hole (5-1-2), and the flow of the material sprayed out from the spray heads (5-1) of each group of injection units (5) is 0-222 ml/s;
when the speed of the vehicle is increased to 2-4 km/h, the miniature motor (5-5) drives the screw nut transmission mechanism to operate, so that the rectangular nut (5-7) moves backwards to the position where the screw thread scale is 4-8 circles, at the moment, the ball head valve core of the flow control valve (5-8) in the injection unit (5) partially seals the injection hole (5-1-2), and the flow of the material sprayed out from the spray heads (5-1) of each group of injection units (5) is 222-444 ml/s;
when the speed of the vehicle is increased to 4-6 km/h, the miniature motor (5-5) drives the screw nut transmission mechanism to operate, so that the rectangular nut (5-7) moves backwards to the position where the screw thread scale is 8-12 circles, at the moment, the ball head valve core of the flow control valve (5-8) in the injection unit (5) partially seals the injection hole (5-1-2), and the flow of the material sprayed out from the spray heads (5-1) of each group of injection units (5) is 444-666 ml/s;
when the speed of the vehicle is increased to 6-8 km/h, the miniature motor (5-5) drives the screw nut transmission mechanism to operate, so that the rectangular nut (5-7) moves backwards to the position where the screw thread scale is 12-16 circles, at the moment, the ball head valve core of the flow control valve (5-8) in the injection unit (5) partially plugs the injection hole (5-1-2), and the flow of the material sprayed out from the spray heads (5-1) of each group of injection units (5) is 666-888 mL/s mL.
7. The method for controlling the spraying flow of the two-component material according to claim 6, wherein the method comprises the following steps: the spray angle and the spray coverage area can be controlled according to the position of the spray head (5-1) in each spray unit (5), and specific control parameters are as follows:
when the distance b=300 mm between the spray heads in two adjacent spray units and the distance H=250 mm between the spray heads (5-1) and the spray ground, the spray angle 2α=45-49.6 degrees of each spray head makes the area of the spray coverage area be 2.4-2.6 m 2 ；
When the distance b=300 mm between the spray heads in two adjacent spray units and the distance H=300 mm between the spray heads (5-1) and the spray ground, the spray angle 2α=38.1-42.1 degrees of each spray head, so that the area of the spray coverage area is 2.6-2.8 m 2 ；
When the spray head distance b=350 mm and the spray head (5-1) and the spray ground distance H=250 mm in two adjacent spray units, the spray angle 2α=54.7-60 degrees of each spray head, so that the spray coverage area is 2.8-3 m 2 ；
When the spray head distance b=350 mm and the spray head (5-1) and the spray ground distance H=300 mm in two adjacent spray units, the spray angle 2α=46.7-51.4 degrees of each spray head, so that the spray coverage area per unit time is 3-3.2 m 2 。
8. The method for controlling the spraying flow of the two-component material according to claim 6, wherein the method comprises the following steps: the infrared temperature measuring device arranged at the bottom of the spraying vehicle is used for monitoring the temperature of the material sprayed to the ground, and the specific control parameters are as follows:
when the monitored temperature loss delta t is less than or equal to 2 ℃, controlling the power of the electromagnetic heating pipe (5-2) to be 1000W;
when the monitored temperature loss is more than or equal to 4 ℃ and delta t is more than 2 ℃, controlling the power of the electromagnetic heating pipe (5-2) to be 1500W;
when the monitored temperature loss is more than or equal to 6 ℃ and delta t is more than 4 ℃, controlling the power of the electromagnetic heating pipe (5-2) to be 2000W;
when the monitored temperature loss is more than or equal to 8 ℃ and delta t is more than 6 ℃, controlling the power of the electromagnetic heating pipe (5-2) to 2500W;
when the monitored temperature loss is more than or equal to 10 ℃ and delta t is more than 8 ℃, the power of the electromagnetic heating pipe (5-2) is controlled to be 3000W.
9. The method for controlling the spraying flow of the two-component material according to claim 6, wherein the method comprises the following steps: the ultrasonic wave generating device (1) is additionally arranged on the charging bucket (2) of the A, B two materials, so that the ultrasonic waves introduced into the charging bucket (2) stir the materials, and the conveying pipeline and the spray head (5-1) are cleaned along with the transmission of the materials.
10. The method for controlling the spraying flow of the two-component material according to claim 9, wherein the method comprises the following steps: the ultrasonic generating device (1) is an ultrasonic generator with adjustable frequency, and the frequency of the ultrasonic generator can be adjusted to meet the requirements of smooth propagation in materials with different components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111330495.0A CN114016416B (en) | 2021-11-11 | 2021-11-11 | Vehicle-mounted two-component material nozzle assembly and spraying flow control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111330495.0A CN114016416B (en) | 2021-11-11 | 2021-11-11 | Vehicle-mounted two-component material nozzle assembly and spraying flow control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114016416A CN114016416A (en) | 2022-02-08 |
| CN114016416B true CN114016416B (en) | 2023-09-29 |
Family
ID=80063289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111330495.0A Active CN114016416B (en) | 2021-11-11 | 2021-11-11 | Vehicle-mounted two-component material nozzle assembly and spraying flow control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114016416B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3106346A (en) * | 1958-04-30 | 1963-10-08 | Auto Research Corp | System for distributing fluids |
| AU1783895A (en) * | 1994-05-09 | 1995-11-16 | Matthews Bros Engineering Pty Ltd | Spray valve |
| CN102493320A (en) * | 2011-12-19 | 2012-06-13 | 陕西长大实业有限公司 | Spraying apparatus, paving machine, and construction method of liquid-state asphalt |
| JP2013096191A (en) * | 2011-11-04 | 2013-05-20 | Kajima Corp | High-pressure nozzle device |
| CN206157585U (en) * | 2016-10-26 | 2017-05-10 | 重庆市智翔铺道技术工程有限公司 | Two ingredient fast cure waterproof layer spraying equipment of steel bridge face |
| JP2019118875A (en) * | 2018-01-04 | 2019-07-22 | 首都高速道路株式会社 | Painting device and painting method |
| CN110258255A (en) * | 2019-07-18 | 2019-09-20 | 山东大山路桥工程有限公司 | A kind of vehicle-mounted spread equipment sprinkling arm elevator apparatus |
| CN111074729A (en) * | 2019-12-25 | 2020-04-28 | 重庆市智翔铺道技术工程有限公司 | Integrated intelligent construction vehicle for bi-component road material with equal volume ratio |
| CN211057627U (en) * | 2019-10-08 | 2020-07-21 | 闫东波 | Intelligent spraying device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7124964B2 (en) * | 2002-09-13 | 2006-10-24 | Quy Duc Bui | Nozzle with flow rate and droplet size control capability |
-
2021
- 2021-11-11 CN CN202111330495.0A patent/CN114016416B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3106346A (en) * | 1958-04-30 | 1963-10-08 | Auto Research Corp | System for distributing fluids |
| AU1783895A (en) * | 1994-05-09 | 1995-11-16 | Matthews Bros Engineering Pty Ltd | Spray valve |
| JP2013096191A (en) * | 2011-11-04 | 2013-05-20 | Kajima Corp | High-pressure nozzle device |
| CN102493320A (en) * | 2011-12-19 | 2012-06-13 | 陕西长大实业有限公司 | Spraying apparatus, paving machine, and construction method of liquid-state asphalt |
| CN206157585U (en) * | 2016-10-26 | 2017-05-10 | 重庆市智翔铺道技术工程有限公司 | Two ingredient fast cure waterproof layer spraying equipment of steel bridge face |
| JP2019118875A (en) * | 2018-01-04 | 2019-07-22 | 首都高速道路株式会社 | Painting device and painting method |
| CN110258255A (en) * | 2019-07-18 | 2019-09-20 | 山东大山路桥工程有限公司 | A kind of vehicle-mounted spread equipment sprinkling arm elevator apparatus |
| CN211057627U (en) * | 2019-10-08 | 2020-07-21 | 闫东波 | Intelligent spraying device |
| CN111074729A (en) * | 2019-12-25 | 2020-04-28 | 重庆市智翔铺道技术工程有限公司 | Integrated intelligent construction vehicle for bi-component road material with equal volume ratio |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114016416A (en) | 2022-02-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1179397A (en) | Variable gas atomization | |
| US7431240B1 (en) | Hybrid deicing system and method of operation | |
| US3199790A (en) | Spraying apparatus for the production of foamed plastic materials for use as fillers and insulations | |
| US5579998A (en) | Method for coating a substrate with a reinforced resin matrix | |
| US5565241A (en) | Convergent end-effector | |
| CN203355927U (en) | Target type impinging stream nozzle with conical firing pin | |
| US3927833A (en) | Apparatus for forming multiple-component composite structures | |
| CN102574140A (en) | Method and device for producing a sprayed reactive plastic layer | |
| JPH1158371A (en) | Device and method for manufacturing polyurethane material | |
| CN114016416B (en) | Vehicle-mounted two-component material nozzle assembly and spraying flow control method | |
| CN104755244A (en) | Mixing head having enhanced mixing performance and discharging device thereof | |
| US4618098A (en) | Fiberglass spray nozzle | |
| CN112088754A (en) | Hydrodynamic force is penetrated fog dust fall and afforestation sprinkler | |
| CN2392616Y (en) | Multi-component spray coating device for internal wall of tube | |
| CN217140796U (en) | Multi-component polymer mixing spiral jet device | |
| CN113231216A (en) | Multi-component polymer mixing spiral jet device | |
| CN201398451Y (en) | Cigarette holder filter glycerin atomization device | |
| CN213255178U (en) | Special-shaped concrete spraying nozzle | |
| CN101949124B (en) | Device for automatically spraying heat-reflective coating for roads | |
| CN110863925A (en) | Hypersonic mechanical transmission type frequency modulation pulse injection device and method | |
| CN207913979U (en) | A kind of rapid hardening water-repellent paint spray equipment | |
| CN203834482U (en) | Closed continuous secondary watering wet shotcreting system | |
| CN103302866B (en) | Glass reinforced plastic forming method and glass reinforced plastic forming system | |
| CN218993756U (en) | Snow making machine | |
| CN115031458A (en) | Snow making machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |