NO116498B - - Google Patents

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Publication number
NO116498B
NO116498B NO152659A NO15265964A NO116498B NO 116498 B NO116498 B NO 116498B NO 152659 A NO152659 A NO 152659A NO 15265964 A NO15265964 A NO 15265964A NO 116498 B NO116498 B NO 116498B
Authority
NO
Norway
Prior art keywords
pressure
distribution
valve
channel
liquid
Prior art date
Application number
NO152659A
Other languages
Norwegian (no)
Inventor
A Reinhart
Original Assignee
A Reinhart
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 A Reinhart filed Critical A Reinhart
Publication of NO116498B publication Critical patent/NO116498B/no

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • B08B9/053—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction
    • B08B9/055—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes moved along the pipes by a fluid, e.g. by fluid pressure or by suction the cleaning devices conforming to, or being conformable to, substantially the same cross-section of the pipes, e.g. pigs or moles
    • B08B9/0553—Cylindrically shaped pigs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto 
    • B08B9/02—Cleaning pipes or tubes or systems of pipes or tubes
    • B08B9/027—Cleaning the internal surfaces; Removal of blockages
    • B08B9/04—Cleaning the internal surfaces; Removal of blockages using cleaning devices introduced into and moved along the pipes
    • E—FIXED CONSTRUCTIONS
    • E03—WATER SUPPLY; SEWERAGE
    • E03F—SEWERS; CESSPOOLS
    • E03F9/00—Arrangements or fixed installations methods or devices for cleaning or clearing sewer pipes, e.g. by flushing
    • E03F9/002—Cleaning sewer pipes by mechanical means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
    • F16L55/26—Pigs or moles, i.e. devices movable in a pipe or conduit with or without self-contained propulsion means
    • F16L55/28—Constructional aspects
    • F16L55/30—Constructional aspects of the propulsion means, e.g. towed by cables
    • F16L55/38—Constructional aspects of the propulsion means, e.g. towed by cables driven by fluid pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Fluid Mechanics (AREA)
  • Physics & Mathematics (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Cleaning In General (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Control Of Fluid Gearings (AREA)

Description

Fordelingsventilplate for hydrauliske gear. Distribution valve plate for hydraulic gears.

I italiensk patent nr. 479 686 er det vist In Italian patent No. 479 686 it is shown

et hydraulisk gear av skråplatetypen som tillater endring i forholdet mellom hastig-heten av to aksler fra direkte drift til en nøytral stilling av den ene aksel i forhold til den annen. Det nevnte gear omfatter en hydraulisk pumpe og en hydraulisk motor som er hydraulisk koblet med hverandre, idet pumpen og motoren har et flertall sylindere, i hvilke stempler kan bevege seg fram og tilbake under utførelse av va-riable slag svarende til skråstillingen av en skråplate, idet der videre mellom pumpen og motoren er anordnet en fordelingsventilplate for kontroll av passasje av væske fra pumpen til motoren. a hydraulic gear of the swash plate type which allows a change in the ratio between the speed of two axles from direct operation to a neutral position of one axle in relation to the other. The aforementioned gear comprises a hydraulic pump and a hydraulic motor which are hydraulically connected to each other, the pump and the motor having a plurality of cylinders, in which pistons can move back and forth during execution of variable strokes corresponding to the inclined position of an inclined plate, since there is further arranged between the pump and the motor a distribution valve plate for controlling the passage of liquid from the pump to the motor.

Foreliggende oppfinnelse har til øye-med å skaffe en konstruksjon av en slik fordelingsventilplate som ved anvendelse av en hjelpepumpe tillater innføring av væske under trykk i den del av det hydrauliske kretsløp for pumpen og motoren hvor trykket er lavt for å unngå at der dannes luftbobler i hovedkretsløpet og for å bringe stemplene til å bevege seg tilbake i sylin-deren på pumpens sugeside. The aim of the present invention is to provide a construction of such a distribution valve plate which, when using an auxiliary pump, allows the introduction of liquid under pressure into the part of the hydraulic circuit for the pump and the engine where the pressure is low in order to avoid air bubbles forming in the main circuit and to cause the pistons to move back into the cylinder on the suction side of the pump.

Fordelingsventilplaten ifølge oppfinnelsen er forsynt med et system av ventiler anordnet på en slik måte at væske under trykk som tilføres fra hjelpepumpen som følge av sitt eget trykk åpner ventilen som står i forbindelse med fordelingskanalen som står under lavere trykk, men ikke åpner den ventil som befinner seg i forbindelse med fordelingskanalen som står under høyere trykk, idet væsken fra hjelpepumpen deretter strømmer gjennom en annen ventil som holdes åpen under virkningen av trykket i fordelingskanalen, hvor trykket er høyest og føres ut gjennom en ventil hvor væskens trykk overvinner motstanden av en justert fjær som søker å holde den sistnevnte ventil stengt. The distribution valve plate according to the invention is provided with a system of valves arranged in such a way that liquid under pressure which is supplied from the auxiliary pump as a result of its own pressure opens the valve which is in connection with the distribution channel which is under lower pressure, but does not open the valve which is located itself in connection with the distribution channel which is under higher pressure, the liquid from the auxiliary pump then flows through another valve which is held open under the action of the pressure in the distribution channel, where the pressure is highest and is discharged through a valve where the pressure of the liquid overcomes the resistance of an adjusted spring which seeks to keep the latter valve closed.

Oppfinnelsen skal i det følgende be-skrives nærmere i forbindelse med tegningen hvor: Fig. 1 viser et skjematisk aksialsnitt In the following, the invention will be described in more detail in connection with the drawing where: Fig. 1 shows a schematic axial section

gjennom et komplett hydraulisk gear, og through a complete hydraulic gear, and

Fig. 2 i større målestokk viser et aksialsnitt gjennom en fordelingsplate ifølge en utførelsesform for oppfinnelsen, bestemt til å brukes i gearet på fig. 1. Fig. 2 on a larger scale shows an axial section through a distribution plate according to an embodiment of the invention, intended to be used in the gear in fig. 1.

På fig. 1 betegner A drivakselen, B den drevne aksel, C den hydrauliske pumpes sylinderlegeme og D den hydrauliske mo-tors sylinderlegeme. Mellom pumpens og motorens sylinderlegemer er fordelingsventilplaten 12 anordnet, som danner gjen-standen for foreliggende oppfinnelse. E betegner en hjelpepumpe anordnet på drivakselen 1 og drevet av denne, hvilken pumpe er innrettet til å levere væske under trykk til det hydrauliske kretsløp fol-den hydrauliske pumpe og motor gjennom fordelingsventilplaten 12. In fig. 1 denotes the drive shaft, B the driven shaft, C the cylinder body of the hydraulic pump and D the cylinder body of the hydraulic motor. Between the cylinder bodies of the pump and the motor, the distribution valve plate 12 is arranged, which forms the object of the present invention. E denotes an auxiliary pump arranged on the drive shaft 1 and driven by it, which pump is designed to supply liquid under pressure to the hydraulic circuit of the hydraulic pump and motor through the distribution valve plate 12.

På fig. 2 betegner 5 og 6 fordelingsven-tilkanaler i fordelingsventilplaten 12. Kanalen 5 danner forbindelse mellom pumpens trykkside og motoren, mens kanalen 6 danner forbindelse mellom motoren og pumpens sugeside. I samsvar med om-dreiningsretningen av den nevnte innret-ning og i samsvar med dens drift, dvs. som drivmotor eller som drevet del, vil trykket være størst enten i kanalen 5 eller i kanalen 6. Væsken som tilføres med hjelpepumpen blir tatt inn i den del av krets-løpet som er under lavest trykk. Denne væske kommer inn i ledningen 1, som står i forbindelse med den ene ende av de to In fig. 2 denotes distribution valve channels 5 and 6 in the distribution valve plate 12. Channel 5 forms a connection between the pump's pressure side and the motor, while channel 6 forms a connection between the motor and the pump's suction side. In accordance with the direction of rotation of the aforementioned device and in accordance with its operation, i.e. as a drive motor or as a driven part, the pressure will be greatest either in channel 5 or in channel 6. The liquid supplied with the auxiliary pump is taken into the part of the circuit that is under the lowest pressure. This liquid enters the line 1, which is connected to one end of the two

kanaler og har et trykk p, som er større channels and has a pressure p, which is greater

enn trykket p, i den del av kretsløpet som than the pressure p, in the part of the circuit which

er under lavest trykk, men er mindre enn is at the lowest pressure, but is less than

trykket p2 i den del av kretsløpet hvor det the pressure p2 in the part of the circuit where it

er høyest trykk. Trykket som oppstår på is the highest pressure. The pressure that occurs on

grunn av trykket på de omgivende overfla-ter virker slik at enten ventil 3 eller ventil 4 vil bli åpnet i avhengighet av om trykket due to the pressure on the surrounding surfaces acts so that either valve 3 or valve 4 will be opened depending on whether the pressure

på nedstrømsiden av den første eller den on the downstream side of the first or the

andre ventil er mindre enn trykket p. Ventilen på nedstrømsiden som er utsatt for second valve is less than the pressure p. The valve on the downstream side that is exposed to

størst trykk er derimot holdt lukket ved greatest pressure, however, is kept closed by

det samme trykk. Tegningen viser det til-felle hvor det laveste trykk er til stede i the same pressure. The drawing shows the case where the lowest pressure is present

ventilkanal 6. valve channel 6.

I henhold til den foretrukne form, According to the preferred form,

som er vist på tegningen, kan ventilene 3 shown in the drawing, the valves 3

og 4 være av kuletypen. and 4 be of the ball type.

Ved den andre ende av kanalene 5 og At the other end of channels 5 and

6 er plasert to ventiler 7 og 8, og åpning og 6 are placed two valves 7 and 8, and opening and

lukking av disse ventiler er kontrollert slik closing of these valves is controlled as follows

at den ene ventil ikke kan lukkes uten that one valve cannot be closed without it

samtidig og regulert å lukke den andre simultaneously and regulated to close the other

ventil. Ventilene 7 og 8 som er vist på tegningen omfatter to stempel-ventiler fast valve. The valves 7 and 8 shown in the drawing include two fixed piston valves

forenet med en bolt 11. united with a bolt 11.

Mellom åpningene av de to ventiler er Between the openings of the two valves is

det anordnet en uttapningsledning 2, som it arranged a drain line 2, which

er forbundet med en kuleventil eller lig-nende 9, som åpnes på grunn av trykket is connected to a ball valve or similar 9, which opens due to the pressure

av væsken, hvis det sistnevnte er i stand of the liquid, if the latter is capable

til å overvinne motstanden av fjæren 10. to overcome the resistance of the spring 10.

Som følge av trykket p2 i fordelingskanalen 5, som er større enn trykket p av As a result of the pressure p2 in the distribution channel 5, which is greater than the pressure p av

væsken som tilføres fra hjelpepumpen E, the liquid supplied from the auxiliary pump E,

vil stempelventilen 7 holdes stengt, og som the piston valve 7 will be kept closed, and as

følge derav stempelventilen 8 åpne slik at therefore open the piston valve 8 so that

der gjennom ventilen 8 vil strømme væske where liquid will flow through the valve 8

som tilføres fra hjelpepumpen og trer inn which is supplied from the auxiliary pump and enters

i fordelingskanalen 6 gjennom ventilen 4, in the distribution channel 6 through the valve 4,

idet trykket px i fordelingskanalen 6 er lavere enn trykket p. Væsken som strømmer as the pressure px in the distribution channel 6 is lower than the pressure p. The liquid that flows

ut fra ventilen 8 kommer inn i ledningen 2, from the valve 8 enters the line 2,

fra hvilken den vil eller ikke vil bli ført ut, from which it will or will not be exported,

beroende på hvorvidt dens trykk er i stand depending on whether its pressure is able

til å overvinne motstanden av fjæren 10 av to overcome the resistance of the spring 10 of

ventilen 9, hvilken uttapning av væsken the valve 9, which drains the liquid

foruten å sikre at trykket i fordelingskanalen 6 ikke overstiger en forut bestemt besides ensuring that the pressure in the distribution channel 6 does not exceed a predetermined one

verdi, sørger for at varmen som oppstår i value, ensures that the heat that occurs in

kretsløpet blir fjernet. the circuit is removed.

Claims (4)

1. Fordelingsventilplate for hydrauliske gear omfattende en hydraulisk pumpe1. Distribution valve plate for hydraulic gears comprising a hydraulic pump som ér hydraulisk forbundet med et lukket kretsløp med hydraulisk motor, og videre forsynt med en hjelpepumpe som leverer væske under trykk til det hydrauliske kretsløp, karakterisert ved at platen har et flertall fordelingskanaler (5, 6), en inn-løpskanal (1) fra hjelpepumpen og en ut-løpskanal (2) samt at der i utløpskanalen befinner seg en ventil (9) innrettet til å åpnes under et forutbestemt trykk, mens der mellom innløpskanalen (10) og hver av fordelingskanalene (5, 6) er ventilorganer (3, 4) for tilførsel av trykk fra innløpska-nalen til den av fordelingskanalene som står under lavt trykk, og ventilorganer (7, 8) mellom hver fordelingskanal og utløps-kanalen (2) innrettet til å stenges ved trykk i fordelingskanalene, hvilke ventil-anordninger er fast forbundet med hverandre slik at når den ene er stengt er den annen åpen.which is hydraulically connected to a closed circuit with a hydraulic motor, and further provided with an auxiliary pump that delivers liquid under pressure to the hydraulic circuit, characterized in that the plate has a plurality of distribution channels (5, 6), an inlet channel (1) from the auxiliary pump and an outlet channel (2) and that in the outlet channel there is a valve (9) arranged to open under a predetermined pressure, while between the inlet channel (10) and each of the distribution channels (5, 6) there are valve means (3) , 4) for supplying pressure from the inlet channel to the one of the distribution channels which is under low pressure, and valve means (7, 8) between each distribution channel and the outlet channel (2) arranged to be closed by pressure in the distribution channels, which valve- devices are firmly connected to each other so that when one is closed the other is open. 2. Fordelingsventilplate som angitt i påstand 1, karakterisert ved at ventilen (2) i innløpskanalen er utført i form av en kuleventil som påvirkes av en fjær (10) og er innrettet til å åpnes når trykket i fordelingskanalen som mottar væske fra hjelpepumpen, overstiger en forut bestemt verdi. 2. Distribution valve plate as stated in claim 1, characterized in that the valve (2) in the inlet channel is made in the form of a ball valve which is affected by a spring (10) and is designed to open when the pressure in the distribution channel that receives liquid from the auxiliary pump exceeds a predetermined value. 3. Fordelingsventilplate som angitt i påstand 1, karakterisert ved at ventilorga-nene (3, 4) mellom innløpskanalen og hver fordelingskanal dannes av to ventiler av hvilke den ene (4) åpner som følge av trykkdifferanse mellom hjelpevæsken og væsken i fordelingskanalen (6) hvor der hersker et lavere trykk mens den annen ventil (3) stenger som følge av trykkdifferanse mellom væsken i fordelingskanalen (5), hvor der hersker et større trykk, og hjelpevæsken. 3. Distribution valve plate as stated in claim 1, characterized in that the valve members (3, 4) between the inlet channel and each distribution channel are formed by two valves, one of which (4) opens as a result of a pressure difference between the auxiliary fluid and the liquid in the distribution channel (6) where a lower pressure prevails while the other valve (3) closes as a result of a pressure difference between the liquid in the distribution channel (5), where a greater pressure prevails, and the auxiliary liquid. 4. Fordelingsventilplate som angitt i påstand 1, karakterisert ved at ventilorga-nene mellom hver fordelingskanal og ut-løpskanalen utgjøres av to stempelventiler (7, 8) som er forbundet med hverandre med et stivt forbindelsesorgan (11), hvilke stempelventiler er innrettet til å stenges av trykket i fordelingskanalene.4. Distribution valve plate as specified in claim 1, characterized in that the valve means between each distribution channel and the outlet channel are made up of two piston valves (7, 8) which are connected to each other by a rigid connecting member (11), which piston valves are designed to is closed by the pressure in the distribution channels.
NO152659A 1963-04-05 1964-04-02 NO116498B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH420763A CH402531A (en) 1963-04-05 1963-04-05 Thruster for pipe cleaning device

Publications (1)

Publication Number Publication Date
NO116498B true NO116498B (en) 1969-03-31

Family

ID=4271784

Family Applications (1)

Application Number Title Priority Date Filing Date
NO152659A NO116498B (en) 1963-04-05 1964-04-02

Country Status (9)

Country Link
US (1) US3262143A (en)
AT (1) AT275430B (en)
BE (1) BE646046A (en)
CH (1) CH402531A (en)
DE (1) DE1300384B (en)
ES (1) ES298235A1 (en)
GB (1) GB1022860A (en)
NO (1) NO116498B (en)
SE (1) SE314340B (en)

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CN104511459A (en) * 2013-10-08 2015-04-15 天太·郭元焜 Pulling rope type internal automatic rotating cleaning machine for pipe
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CN106838542A (en) * 2017-03-08 2017-06-13 中南大学 A kind of pipe detection maintaining robot
US11446710B2 (en) * 2018-12-14 2022-09-20 The Boeing Company Wash and dry tool for enclosed channels and method for use
CN110345334B (en) * 2019-07-24 2020-09-08 江苏亚星波纹管有限公司 Corrugated pipe
CN110566750B (en) * 2019-08-01 2021-03-30 海宁立潮工程咨询有限公司 Method and detection equipment for track measurement and internal detection of buried pipeline
CN110761393A (en) * 2019-10-30 2020-02-07 无锡职业技术学院 Novel pipeline dredging device
CN111997175B (en) * 2020-08-10 2021-12-10 河海大学常州校区 Anti-roll device suitable for double-wheel crawler-type pipeline dredging robot
CN111877526B (en) * 2020-08-15 2021-07-23 魏颖旗 Municipal sewer line dredging vehicle and implementation method
CN112227517B (en) * 2020-10-12 2022-05-27 苏州品超智能设备有限公司 Sewer cleaning robot and use method
CN112963661B (en) * 2021-03-05 2022-09-02 郑州科技学院 Intelligent detection device based on automation
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CN114042575A (en) * 2021-12-22 2022-02-15 刘惠文 Environment-friendly spraying device and using method thereof
CN115183084B (en) * 2022-07-12 2024-01-23 安徽龙振建设有限公司 Anti-blocking structure of concrete embedded pipeline

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Also Published As

Publication number Publication date
US3262143A (en) 1966-07-26
GB1022860A (en) 1966-03-16
CH402531A (en) 1965-11-15
SE314340B (en) 1969-09-01
AT275430B (en) 1969-10-27
BE646046A (en) 1964-07-31
ES298235A1 (en) 1964-09-01
DE1300384B (en) 1969-07-31

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