CN203583323U - Pulse spraying control assembly of pitch spraying paver - Google Patents
Pulse spraying control assembly of pitch spraying paver Download PDFInfo
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- CN203583323U CN203583323U CN201320522244.7U CN201320522244U CN203583323U CN 203583323 U CN203583323 U CN 203583323U CN 201320522244 U CN201320522244 U CN 201320522244U CN 203583323 U CN203583323 U CN 203583323U
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- nozzle base
- nozzle
- pitch
- spray nozzle
- pneumatic actuator
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Abstract
The utility model discloses a pulse spraying control assembly of a pitch spraying paver. The pulse spraying control assembly comprises a high-frequency electromagnetic valve, a pneumatic actuator and a spray nozzle base, wherein the pneumatic actuator is connected to the spray nozzle base through bolts, an air intake control hole of the pneumatic actuator is connected to an air outlet control hole of the high-frequency electromagnetic valve through a second transition joint, an air cylinder piston rod is in threaded connection with a sealing corrugated pipe, a 0.2mm-1mm unidirectional radial clearance is reserved between the air cylinder piston rod and the non-thread part of the sealing corrugated pipe, a sealing ring is arranged in a sealing groove of the spray nozzle base and compressed by the top of the sealing corrugated pipe, a threaded hole in the side surface of the spray nozzle base is connected to a pitch spraying pipe through a first transition joint, and a spray nozzle assembly is arranged at the lower end of the spray nozzle base. The sealing corrugated pipe has a good centering effect and can completely cling to a concave conical surface of the spray nozzle base so as to prevent the leakage of pitch.
Description
Technical field
The utility model relates to a kind of pitch sprinkling paver and sprays Control Component with pulse, belongs to paver component technology field.
Background technology
At present, in road maintenance construction, pitch sprinkling paver has obtained application more and more widely.Because pitch sprinkling paver can be integrated in one the bituminous mixture laying function of the mulseal spread function of special-purpose distribution vehicle and common paver, not only shorten construction period, reduced special construction apparatus quantity, and this new construction technology has also greatly reduced waste of material, so this construction equipment has alleviated constructor's labour intensity, has improved labor productivity.
But, in the sprinkling of pitch sprinkling paver, control and realize, existing technology still continues the Jet control mode of distribution vehicle, this control mode has following defect: existing spread Jet control device normally forms by the convex cone face of cylinder piston boom end and the concave cone face of shower nozzle the open and close that conical surface seal is controlled shower nozzle, this metal sealing form is not only very high to the conical surface of cylinder piston rod and the requirement of shower nozzle conical surface axiality, and cannot realize the pulse that the frequency is higher, the life-span is longer and spray.
The patent No. is the flusher that 200720052943.4 Chinese utility model patent discloses a kind of pitch sprinkling car, the technical characteristics of this device is that piston rod end is processed as to dome shape, and by lateral pin, metal sealing cone and cylinder piston rod are carried out to the active connection of intermittence, the recessed cone match of the convex cone face of then boring by metal sealing and nozzle carrier forms the open and close that conical surface seal is realized shower nozzle.Although spraying to control in the mulseal continous way of distribution vehicle, this device avoided the conical surface of cylinder piston rod to cause the problem of pitch leakage with the decentraction of the shower nozzle conical surface, but active connection that piston rod becomes with metal sealing taper, can in the situation that opening and closing, high frequency there is wearing and tearing quickening, finally cause the wide-angle tilt of sealing cone, and cause pitch to reveal; And this device needs the position of sealing also more, should not realize in the use, so this device can not open and close for shower nozzle the accurate control of the spread paver pulse sprinkling that the frequency is higher, sealing life is longer.
The patent No. is that 201120029353.6 Chinese utility model patent discloses a kind of nozzle cylinder for vehicle asphalt sprinkling equipment, the technical characteristics of this Jet control device is that the end of piston rod is processed as to the conical surface, and cone match direct and shower nozzle forms the keying that conical surface seal is realized shower nozzle.This device still can exist the axiality between core assembly and nozzle to be difficult to guarantee, and pitch leakage problem occurs, so this device also cannot spray and control for the pulse of spread paver mulseal.
Summary of the invention
The problem existing for above-mentioned prior art, the utility model provides a kind of pitch sprinkling paver to spray Control Component with pulse, and seal bellows centering is effective, makes on its indent conical surface that is fitted in nozzle base completely, avoids pitch to reveal.
To achieve these goals, the technical solution adopted in the utility model is: a kind of pitch sprinkling paver sprays Control Component with pulse, comprise high-frequency electromagnetic valve, pneumatic actuator and nozzle base, between pneumatic actuator and nozzle base, by screw, connect, the air inlet of pneumatic actuator is controlled mouthful control mouthful of giving vent to anger by the second transit joint and high-frequency electromagnetic valve and is connected, cylinder piston rod is connected by screw thread with seal bellows, the unidirectional radial clearance that has 0.2mm-1mm between the non-threaded position of cylinder piston rod and seal bellows, sealing ring is loaded in the seal groove of nozzle base, and compressed by the top of seal bellows, the screwed hole of nozzle base side is connected with pitch sprinkling pipe by First Transition joint, the lower end of nozzle base is provided with nozzle assembly.
Further, seal bellows material is fluorubber, and seal bellows is multi-layer annular structure.
Further, nozzle assembly is comprised of restriction choke and nozzle, and nozzle is arranged on the lower end of nozzle base, and restriction choke is arranged in the endoporus of nozzle.
The beneficial effects of the utility model are: when high-frequency electromagnetic valve is closed, spring reset in pneumatic actuator, drive cylinder piston rod stretches out, seal bellows also can stretch out thereupon, owing to there being certain radial clearance between seal bellows and cylinder piston rod, so when seal bellows is pressed onto on the indent conical surface of nozzle base, can make seal bellows produce less pivot angle is inclined on the centerline direction of nozzle base, and then make seal bellows there is the function of automatic centering, make on its indent conical surface that is fitted in nozzle base completely, good sealing effect, when asphalt distribution is closed, pitch can not revealed.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1, high-frequency electromagnetic valve, 2, pneumatic actuator, 3, cylinder piston rod, 4, sealing ring, 5.1, First Transition joint, the 5.2, second transit joint, 6, seal bellows, 7, nozzle base, 8.1, restriction choke, 8.2, nozzle, 9, pneumatic joint, A, air inlet port, B, charging aperture, C, sprinkling mouthful.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, this pitch sprinkling paver sprays Control Component with pulse, comprise high-frequency electromagnetic valve 1, pneumatic actuator 2 and nozzle base 7, between pneumatic actuator 2 and nozzle base 7, by screw, connect, the air inlet of pneumatic actuator 2 is controlled mouthful control mouthful of giving vent to anger by the second transit joint 5.2 and high-frequency electromagnetic valve 1 and is connected, cylinder piston rod 3 forms screw thread pair by the external screw thread of its end and the internal thread of seal bellows 6 and is connected, and has the unidirectional radial clearance of 0.2mm-1mm between cylinder piston rod 3 and the non-threaded position of seal bellows 6; Sealing ring 4 is loaded in the seal groove of nozzle base 7, and is compressed by the top of seal bellows 6, can form twice outside seal like this, guarantees sealing reliability; The screwed hole of nozzle base 7 sides is connected with pitch sprinkling pipe by First Transition joint 5.1, maybe the flexible pipe that is connected with pitch is attached thereto and is connect, and so not only can be independent of spraying pipeline by spraying Control Component, and it is more flexible that spraying pipeline is arranged; The lower end of nozzle base 7 is provided with nozzle assembly.
Operating principle is: bleed pressure is by pneumatic joint 9, import in the air inlet port A of high-frequency electromagnetic valve 1, high-frequency electromagnetic valve 1 can carry out " holding fast under the effect of pulse control signal, close " action, and then drive cylinder piston rod 3 to carry out " stretching, contracting " action, the bottom of seal bellows 6 is the indent cone match of convex cone face and nozzle base 7, and drive and make it stretch and realize opening and closing of nozzle assembly back and forth by cylinder piston rod 3, make mulseal from spraying pipeline, flow through the charging aperture B of nozzle base 7 to spraying a mouthful C under the effect of spray pressure, finally realize sprinkling and the closing function of pitch.
When high-frequency electromagnetic valve 1 is opened, air pressure promotes the piston retraction of pneumatic actuator 2, and then drive cylinder piston rod 3 to mention, seal bellows 6 also can shrink thereupon, seal channel between seal bellows 6 and nozzle base 7 is opened the most at last, and mulseal is sprayed onto on ground to spraying a mouthful C through the charging aperture B of nozzle base 7;
When high-frequency electromagnetic valve 1 is closed, spring reset in pneumatic actuator 2, drive cylinder piston rod 3 to stretch out, seal bellows 6 also can stretch out thereupon, owing to having certain radial clearance between seal bellows 6 and cylinder piston rod 3, so when seal bellows 6 is pressed onto on the indent conical surface of nozzle base 7, can make seal bellows 6 produce less pivot angle is inclined on the centerline direction of nozzle base 7, decentraction for compensation sealing bellows 6 end faces and nozzle base 7, and realize automatic centering effect, seal bellows 6 is fitted in completely on the indent conical surface of nozzle base 7, realize the sprinkling closing function of pitch, and close rear good sealing effect, pitch can not revealed.
Nozzle assembly is comprised of restriction choke 8.1 and nozzle 8.2, nozzle 8.2 is arranged on the lower end of nozzle base 7, restriction choke 8.1 is arranged in the endoporus of nozzle 8.2, nozzle 8.2 is fan shape for the mulseal that makes to spray, restriction choke 8.1, for regulating the flow of mulseal ejection, can meet and spray the higher needs of required precision.
Claims (3)
1. pitch sprinkling paver sprays a Control Component with pulse, comprises high-frequency electromagnetic valve (1), pneumatic actuator (2) and nozzle base (7), between pneumatic actuator (2) and nozzle base (7), by screw, connect, the air inlet of pneumatic actuator (2) is controlled mouthful control mouthful of giving vent to anger by the second transit joint (5.2) and high-frequency electromagnetic valve (1) and is connected, it is characterized in that, cylinder piston rod (3) and seal bellows (6) are threaded, the unidirectional radial clearance that has 0.2mm-1mm between the non-threaded position of cylinder piston rod (3) and seal bellows (6), sealing ring (4) is loaded in the seal groove of nozzle base (7), and compressed by the top of seal bellows (6), the screwed hole of nozzle base (7) side is connected with pitch sprinkling pipe by First Transition joint (5.1), the lower end of nozzle base (7) is provided with nozzle assembly.
2. a kind of pitch sprinkling paver according to claim 1 sprays Control Component with pulse, it is characterized in that, described seal bellows (6) material is fluorubber, and seal bellows (6) is multi-layer annular structure.
3. a kind of pitch sprinkling paver according to claim 1 sprays Control Component with pulse, it is characterized in that, described nozzle assembly is comprised of restriction choke (8.1) and nozzle (8.2), nozzle (8.2) is arranged on the lower end of nozzle base (7), and restriction choke (8.1) is arranged in the endoporus of nozzle (8.2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320522244.7U CN203583323U (en) | 2013-08-26 | 2013-08-26 | Pulse spraying control assembly of pitch spraying paver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320522244.7U CN203583323U (en) | 2013-08-26 | 2013-08-26 | Pulse spraying control assembly of pitch spraying paver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203583323U true CN203583323U (en) | 2014-05-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320522244.7U Expired - Lifetime CN203583323U (en) | 2013-08-26 | 2013-08-26 | Pulse spraying control assembly of pitch spraying paver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203583323U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087661A (en) * | 2016-08-01 | 2016-11-09 | 徐工集团工程机械股份有限公司道路机械分公司 | A kind of emulsified asphalt synchronizes spread paver |
| CN106568630A (en) * | 2016-10-28 | 2017-04-19 | 核工业北京地质研究院 | Full-metal small-volume container and volume determination system and method |
| CN106870950A (en) * | 2017-04-01 | 2017-06-20 | 朱洲山 | A kind of Double pump circulation feeding device |
| CN108221564A (en) * | 2018-01-05 | 2018-06-29 | 沈阳建筑大学 | A kind of plain type pitch sprinkling cylinder and its application method |
| CN109235200A (en) * | 2018-10-19 | 2019-01-18 | 广东华起建设工程有限公司 | A kind of venturi effect heated bitumen nozzle assembly and synchronous spread heated bitumen paver |
| CN109916560A (en) * | 2019-04-03 | 2019-06-21 | 宁波恒元精工管阀科技有限公司 | Compound steelplastic pipe part air-tightness detection device |
| CN110131379A (en) * | 2019-06-05 | 2019-08-16 | 儒拉玛特自动化技术(苏州)有限公司 | A kind of rotary motion driving device |
| CN113136780A (en) * | 2021-03-19 | 2021-07-20 | 中交第一公路勘察设计研究院有限公司 | Colorful pavement pulse type 3D printing nozzle |
-
2013
- 2013-08-26 CN CN201320522244.7U patent/CN203583323U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106087661A (en) * | 2016-08-01 | 2016-11-09 | 徐工集团工程机械股份有限公司道路机械分公司 | A kind of emulsified asphalt synchronizes spread paver |
| CN106568630A (en) * | 2016-10-28 | 2017-04-19 | 核工业北京地质研究院 | Full-metal small-volume container and volume determination system and method |
| CN106870950A (en) * | 2017-04-01 | 2017-06-20 | 朱洲山 | A kind of Double pump circulation feeding device |
| CN108221564A (en) * | 2018-01-05 | 2018-06-29 | 沈阳建筑大学 | A kind of plain type pitch sprinkling cylinder and its application method |
| CN109235200A (en) * | 2018-10-19 | 2019-01-18 | 广东华起建设工程有限公司 | A kind of venturi effect heated bitumen nozzle assembly and synchronous spread heated bitumen paver |
| CN109235200B (en) * | 2018-10-19 | 2024-04-02 | 广东华起建设工程有限公司 | Venturi effect hot asphalt nozzle assembly and synchronous spraying hot asphalt paver |
| CN109916560A (en) * | 2019-04-03 | 2019-06-21 | 宁波恒元精工管阀科技有限公司 | Compound steelplastic pipe part air-tightness detection device |
| CN110131379A (en) * | 2019-06-05 | 2019-08-16 | 儒拉玛特自动化技术(苏州)有限公司 | A kind of rotary motion driving device |
| CN113136780A (en) * | 2021-03-19 | 2021-07-20 | 中交第一公路勘察设计研究院有限公司 | Colorful pavement pulse type 3D printing nozzle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140507 |
|
| CX01 | Expiry of patent term |