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EP0116704A1 - Soupape pour barre de dispersion - Google Patents

Soupape pour barre de dispersion Download PDF

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Publication number
EP0116704A1
EP0116704A1 EP83112237A EP83112237A EP0116704A1 EP 0116704 A1 EP0116704 A1 EP 0116704A1 EP 83112237 A EP83112237 A EP 83112237A EP 83112237 A EP83112237 A EP 83112237A EP 0116704 A1 EP0116704 A1 EP 0116704A1
Authority
EP
European Patent Office
Prior art keywords
valve
spray bar
cone
valve spindle
spindle
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.)
Granted
Application number
EP83112237A
Other languages
German (de)
English (en)
Other versions
EP0116704B1 (fr
Inventor
Rainer Ketola
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dynapac AB
Original Assignee
Dynapac AB
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dynapac AB filed Critical Dynapac AB
Publication of EP0116704A1 publication Critical patent/EP0116704A1/fr
Application granted granted Critical
Publication of EP0116704B1 publication Critical patent/EP0116704B1/fr
Expired legal-status Critical Current

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B1/00—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means
    • B05B1/30—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages
    • B05B1/3033—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head
    • B05B1/304—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve
    • B05B1/3046—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice
    • B05B1/306—Nozzles, spray heads or other outlets, with or without auxiliary devices such as valves, heating means designed to control volume of flow, e.g. with adjustable passages the control being effected by relative coaxial longitudinal movement of the controlling element and the spray head the controlling element being a lift valve the valve element, e.g. a needle, co-operating with a valve seat located downstream of the valve element and its actuating means, generally in the proximity of the outlet orifice the actuating means being a fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B15/00—Details of spraying plant or spraying apparatus not otherwise provided for; Accessories
    • B05B15/60—Arrangements for mounting, supporting or holding spraying apparatus
    • B05B15/65—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits
    • B05B15/658—Mounting arrangements for fluid connection of the spraying apparatus or its outlets to flow conduits the spraying apparatus or its outlet axis being perpendicular to the flow conduit

Definitions

  • the present invention relates to a device for spreading bituminous binder and in particular to a valve device for achieving improved regulation of the amount of binder it is intended to spread.
  • the equipment generally used is a vehicle-mounted tank equipped with a spray tube or spray bar arranged transversely to the direction of travel of the tank. Arranged along the spray bar are a number of openings or nozzles through which the binder is sprayed, these being equipped with valves which can be opened and closed.
  • the control system for opening and closing the spray bar valves is generally arranged so as to enable simultaneous operation of an arbitrary number of valves as well as individual operation of each separate valve, which is essential for attaining the desired spreading conditions.
  • valve systems so far known radial forces on the valve spindle often arise with wear in the spindle seal and spindle guide as a result.
  • valve system according to the present invention purely axial movement of the valve spindle is obtained which results in longer cylinder and valve seat life and consequently more effective opening and closing of the valve.
  • Fig. 1 shows a longitudinal cross-section of a valve and its mounting in a spray bar.
  • F ig. 2 shows a cross-section through the valve along the line A-A in Fig. 1.
  • a spray bar 1 in which a valve 2 is mounted.
  • the valve is controlled by means of a pressure medium and is constructed like a conventional compressed air cylinder with attendant piston and piston rod.
  • the cylinder portion 3 is threaded into the spray bar 1 and the piston rod, which in the present case is called valve spindle 4, is extended and protrudes out of cylinder 3 into spray bar 1.
  • Valve spindle 4 is fitted at the end inside the cylinder portion 3 with a piston 5 and the other end with a valve cone 6 and extends diametrically from the cylinder portion 3 to the opposite wall of spray bar 1, into which a valve seat 7 corresponding to valve cone 6 is screwed.
  • Valve 2 opens and closes as valve cone 6 is moved into and out of contact with valve seat 7.
  • Valve piston 5 is capable of movement inside cylinder space 8, which communicates with an opening 9 in the cylinder wall through which pressure medium can be admitted to cylinder space 8, thus causing the piston 5 and with it valve cone 6 of valve spindle 4 to move away from contact with valve seat 7.
  • the valve is returned to contact with valve seat 7 by means of a spring 10, which is so pretensioned that it keeps the valve closed in the event of a loss of pressure medium.
  • spring 10 is to pretension the seal 11 which is designed to prevent binder from seeping out of spray bar 1 into cylinder 2 during the movement of the valve.
  • the seal 11 consists of V-rings which owing to the wedging effect are pressed against valve spindle 4 and cylinder housing 3.
  • the spring 10 is in this connection so dimensioned that it keeps the seal pretensioned even after a certain amount of wear has arisen in seal 11.
  • the cylinder space 8 is limited at the top by a sleeve-shaped cover 12 screwed onto the cylinder.
  • the outer wall of the cylinder housing is hexagonal in order to provide a better grip for an adjustable spanner, for example, when the housing is screwed into position in the wall of the spray bar.
  • the cover 12 is cylindrical, however, and so sized that gaps 13 are formed between the cylinder housing and the cover 12. These gaps serve as bleed channels for the air present above piston 5 when pressure medium is injected through opening 9 to press piston 5 upwards and consequently open the valve so that binder can flow out of spray bar 1 through the valve opening 14.
  • a sealing ring 15 which seals against valve spindle 4 and cylinder housing 3. If leakage of pressure medium or binder occurs as a result of wear in seal 15 or seal 11, for example, it will be diverted through a drain channel 16 arranged in the wall of the cylinder housing.
  • valve cone 6 is bowl-shaped and fitted over the lower end of valve spindle 4 with a certain degree of radial clearance.
  • a pin 17 which passes through a hole 18 in the lower end of spindle 4 and extends on either side of the spindle through holes in the cone wall, cone 6 is retained in place on valve spindle 4.
  • the diameter of hole 18 is larger than the diameter of pin 17, which enables cone 6 to move axially in relation to valve spindle 4.
  • a sealing ring 19 is fitted in valve seat 7.
  • This ring is of soft material and one of its properties is that the binder in spray bar 1 does not adhere to it. Since ring 19 is of soft material, sealing between it and valve cone 6, is assured even if a solid particle should find its way between the cone and the valve seat ring during the valve closing operation. The solid particle will in such event be pressed into the ring without any gap arising. Next time the valve is opened the solid particle will be flushed out with the binder through opening 14.
  • the hole in spray bar 1 into which the cylinder portion 3 is screwed can be suitably reinforced with an internally threaded bush 20.
  • the cylinder portion 3 is screwed into bush 20 until a stop nut or stop ring 21 on the cylinder housing abuts against a flange 22 arranged on bush 20.
  • a sealing ring 23 is arranged between the cylinder housing and the bush.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Lift Valve (AREA)
  • Road Paving Machines (AREA)
  • Nozzles (AREA)
EP83112237A 1983-02-10 1983-12-06 Soupape pour barre de dispersion Expired EP0116704B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8300723 1983-02-10
SE8300723A SE444331B (sv) 1983-02-10 1983-02-10 Rampventil

Publications (2)

Publication Number Publication Date
EP0116704A1 true EP0116704A1 (fr) 1984-08-29
EP0116704B1 EP0116704B1 (fr) 1987-03-04

Family

ID=20349984

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112237A Expired EP0116704B1 (fr) 1983-02-10 1983-12-06 Soupape pour barre de dispersion

Country Status (6)

Country Link
EP (1) EP0116704B1 (fr)
JP (1) JPS59154157A (fr)
AU (1) AU568329B2 (fr)
BR (1) BR8400069A (fr)
DE (1) DE3370039D1 (fr)
SE (1) SE444331B (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989004399A1 (fr) * 1987-11-03 1989-05-18 Teunis Burggraaff Pulverisateur de goudron a vanne
US4960242A (en) * 1988-07-28 1990-10-02 Rosco Manufacturing Company Asphalt distributor
FR2703702A1 (fr) * 1993-04-07 1994-10-14 Shell Int Research Vanne pour enduit de route, barre de pulvérisation munie d'une telle vanne et véhicule .
GB2277891A (en) * 1993-05-11 1994-11-16 Duffy Tony Eng Ltd Spray bar with pressure release valve
EP1270081A3 (fr) * 2001-06-26 2004-03-10 Spraying Systems Co. Pistolet de pulvérisation avec un dispositif d'étanchéité amélioré pour une soupape à pointeau
US8939387B2 (en) 2010-05-03 2015-01-27 Chapin Manufacturing, Inc. Spray gun
CN116809257A (zh) * 2023-06-06 2023-09-29 重庆嘉凯捷仪器仪表有限公司 气动喷淋阀

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62140962U (fr) * 1986-02-26 1987-09-05
JPS6332661U (fr) * 1986-08-18 1988-03-02
AU628360B2 (en) * 1988-07-25 1992-09-17 Commissioner Of Main Roads In The State Of Western Australia Spraying apparatus
JPH072507U (ja) * 1993-06-18 1995-01-13 範多機械株式会社 アスファルト溶液散布装置
CN104948816A (zh) * 2015-06-29 2015-09-30 洛阳栾川钼业集团股份有限公司 一种电磁气动阀
CN108149549B (zh) * 2018-01-24 2023-12-08 江苏徐工工程机械研究院有限公司 沥青发泡喷洒装置和沥青冷再生设备

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1018718A (fr) * 1950-05-23 1953-01-12 Houseman & Thompson Ltd Soupape de purge pour chaudière
DE1195123B (de) * 1961-02-02 1965-06-16 Shafer Valve Co Selbsttaetiges Ventil mit Druckmittelantrieb
DE2323852A1 (de) * 1973-05-11 1974-11-28 Hermann Beck Vorrichtung zum oeffnen und schliessen von federbelastet geschlossenen ventilen von geraeten zum bespruehen von strassen
FR2455125A1 (fr) * 1979-04-27 1980-11-21 Kozuti Gepellato Vallalat Dispositif de pulverisation de bitume

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1018718A (fr) * 1950-05-23 1953-01-12 Houseman & Thompson Ltd Soupape de purge pour chaudière
DE1195123B (de) * 1961-02-02 1965-06-16 Shafer Valve Co Selbsttaetiges Ventil mit Druckmittelantrieb
DE2323852A1 (de) * 1973-05-11 1974-11-28 Hermann Beck Vorrichtung zum oeffnen und schliessen von federbelastet geschlossenen ventilen von geraeten zum bespruehen von strassen
FR2455125A1 (fr) * 1979-04-27 1980-11-21 Kozuti Gepellato Vallalat Dispositif de pulverisation de bitume

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1989004399A1 (fr) * 1987-11-03 1989-05-18 Teunis Burggraaff Pulverisateur de goudron a vanne
US4960242A (en) * 1988-07-28 1990-10-02 Rosco Manufacturing Company Asphalt distributor
FR2703702A1 (fr) * 1993-04-07 1994-10-14 Shell Int Research Vanne pour enduit de route, barre de pulvérisation munie d'une telle vanne et véhicule .
GB2277891A (en) * 1993-05-11 1994-11-16 Duffy Tony Eng Ltd Spray bar with pressure release valve
EP1270081A3 (fr) * 2001-06-26 2004-03-10 Spraying Systems Co. Pistolet de pulvérisation avec un dispositif d'étanchéité amélioré pour une soupape à pointeau
US6776360B2 (en) 2001-06-26 2004-08-17 Spraying Systems Co. Spray gun with improved needle shut-off valve sealing arrangement
CN100430147C (zh) * 2001-06-26 2008-11-05 喷洒系统公司 带有改进的针式关闭阀的密封装置的喷枪
US8939387B2 (en) 2010-05-03 2015-01-27 Chapin Manufacturing, Inc. Spray gun
CN116809257A (zh) * 2023-06-06 2023-09-29 重庆嘉凯捷仪器仪表有限公司 气动喷淋阀

Also Published As

Publication number Publication date
BR8400069A (pt) 1985-02-12
SE8300723D0 (sv) 1983-02-10
DE3370039D1 (en) 1987-04-09
AU2443284A (en) 1984-08-16
SE8300723L (sv) 1984-08-11
SE444331B (sv) 1986-04-07
EP0116704B1 (fr) 1987-03-04
AU568329B2 (en) 1987-12-24
JPS59154157A (ja) 1984-09-03

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