WO2013026191A1 - Connecteur rotatif et véhicule d'assainissement le comprenant - Google Patents

Connecteur rotatif et véhicule d'assainissement le comprenant Download PDF

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Publication number
WO2013026191A1
WO2013026191A1 PCT/CN2011/078690 CN2011078690W WO2013026191A1 WO 2013026191 A1 WO2013026191 A1 WO 2013026191A1 CN 2011078690 W CN2011078690 W CN 2011078690W WO 2013026191 A1 WO2013026191 A1 WO 2013026191A1
Authority
WO
WIPO (PCT)
Prior art keywords
annular groove
swivel joint
groove
casing
core
Prior art date
Application number
PCT/CN2011/078690
Other languages
English (en)
Chinese (zh)
Inventor
任永泰
黄磊
Original Assignee
长沙中联重工科技发展股份有限公司
湖南中联重科专用车有限责任公司
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 长沙中联重工科技发展股份有限公司, 湖南中联重科专用车有限责任公司 filed Critical 长沙中联重工科技发展股份有限公司
Priority to PCT/CN2011/078690 priority Critical patent/WO2013026191A1/fr
Publication of WO2013026191A1 publication Critical patent/WO2013026191A1/fr

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/006—Pivot joint assemblies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/62—Constructional features or details
    • B66C23/84—Slewing gear
    • B66C23/86—Slewing gear hydraulically actuated
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F3/00—Dredgers; Soil-shifting machines
    • E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
    • E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
    • E02F3/36—Component parts
    • E02F3/3604—Devices to connect tools to arms, booms or the like
    • E02F3/3677—Devices to connect tools to arms, booms or the like allowing movement, e.g. rotation or translation, of the tool around or along another axis as the movement implied by the boom or arms, e.g. for tilting buckets
    • E02F3/3681—Rotators
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02F—DREDGING; SOIL-SHIFTING
    • E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
    • E02F9/20—Drives; Control devices
    • E02F9/22—Hydraulic or pneumatic drives
    • E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
    • E02F9/2275—Hoses and supports therefor and protection therefor
    • 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
    • F16L27/00—Adjustable joints, Joints allowing movement
    • F16L27/08—Adjustable joints, Joints allowing movement allowing adjustment or movement only about the axis of one pipe
    • F16L27/087—Joints with radial fluid passages
    • F16L27/093—Joints with radial fluid passages of the "banjo" type, i.e. pivoting right-angle couplings
    • 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
    • F16L39/00—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies
    • F16L39/04—Joints or fittings for double-walled or multi-channel pipes or pipe assemblies allowing adjustment or movement

Definitions

  • the present invention relates to the field of construction machinery, and in particular to a swivel joint and a sanitation vehicle including the swivel joint. Background technique
  • the swivel joint is a multi-pass rotary oil circuit connection device suitable for construction machinery equipped with a slewing support structure.
  • Common rotary joints include hydraulic adapters and water-oil rotary joints.
  • the former is widely used in excavators, hydraulic cranes and other construction machinery for the transmission of pressure oil; the latter is mostly used in special vehicles such as fire engines and aerial work vehicles to complete the pressure oil, water and electric signals on the upper and lower platforms. Transfer between.
  • CN 201198577Y discloses an eight-channel hydraulic central rotary joint, which comprises a rotary body, a rotary shaft and an end cover.
  • the rotary shaft is axially inserted into the rotary body from the front end of the rotary body, and the front end of the rotary shaft extends out of the rotary body.
  • the cover is fixedly connected to the rear end of the rotary body, and the rotary shaft is provided with eight oil passage holes with different depths from the rear end of the front end phase, one of which is arranged at the center of the rotary shaft, which is a central drain hole, and the other seven are evenly distributed in the center
  • the outer periphery of the drain hole is the main oil passage hole, corresponding to the seven main oil passage holes on the rotary shaft.
  • the seven main oil ports on the rotary body are also in one-to-one correspondence with the seven main oil passage holes on the rotary shaft.
  • the above-mentioned rotary joint is only used to transfer hydraulic oil, and the hydraulic oil itself has lubrication and rust prevention function, so there is no special requirement for the material and rust prevention of the central shaft.
  • Corrosive liquids such as water and washing liquid may cause the shell and core of the swivel joint to rust, generate iron scraps and other impurities, scrape the seals, and cause liquid overflow and internal leakage into the other oil passages in the rotary joint.
  • An object of the present invention is to provide a swivel joint capable of preventing corrosive liquid flowing into the swivel joint from colliding with hydraulic oil.
  • a rotary joint including a core body and a casing sleeved outside the core body, the casing and the core body being rotatable relative to each other
  • An annular groove is formed between the core body and the casing, and the annular groove communicates with the outside of the rotary joint through a first passage on the casing and a second passage in the core, wherein
  • the annular groove includes a first annular groove, a second annular groove, and an isolation groove disposed between the first annular groove and the second annular groove, the isolation groove being in communication with an exterior of the housing.
  • a sealing ring is disposed between the isolation groove and the first annular groove, and/or between the isolation groove and the second annular groove.
  • the sealing ring comprises an O-ring and a Glyd ring disposed outside the O-ring.
  • the housing is provided with a flow guiding hole that communicates the isolation groove with the outside of the housing.
  • the swivel joint further includes a draft tube and a liquid collecting bottle, the liquid collecting bottle is disposed outside the casing, and the draft tube isolates the liquid collecting bottle from the liquid guiding hole through the guiding hole The slots are connected.
  • the collection bottle is transparent.
  • At least one of the first annular groove, the second annular groove and the isolation groove is disposed on an outer surface of the core.
  • the first annular groove is plural, and/or the second annular groove is plural.
  • the first passage is disposed on the housing in a radial direction.
  • the second passage includes an axial bore extending along an axial direction of the core and along the A radially extending radial bore of the core that communicates the axial bore with the first annular groove or the second annular groove.
  • At least one of an outer surface of the core, an inner surface of the casing, an inner surface of the first passage, and an inner surface of the second passage is provided with a chrome plating layer.
  • a sanitation vehicle including a swivel joint, wherein the swivel joint is the above-described swivel joint provided by the present invention.
  • the sanitation vehicle is a wall washer.
  • the number of the first annular grooves is three, the number of the second annular grooves is two, and correspondingly, the number of the first and second channels is respectively Five.
  • the invention provides an isolation groove between the first annular groove (for example, hydraulic oil) and the second annular groove (for example, water or washing liquid), and if the liquid in the first annular groove leaks, it flows into the isolation groove. If liquid leakage in the second annular groove also flows into the isolation groove, the problem of liquid mutual enthalpy in the first annular groove and the second annular groove is solved.
  • first annular groove for example, hydraulic oil
  • second annular groove for example, water or washing liquid
  • FIG. 1 is a front elevational view of a swivel joint in accordance with an embodiment of the present invention
  • Figure 2 is a T-direction view of the swivel joint shown in Figure 1;
  • Figure 3 is a P-direction view of the swivel joint shown in Figure 1;
  • Figure 4 is a partially enlarged schematic view of the swivel joint illustrated in Figure 1;
  • Figure 5 shows the installation position of the swivel joint provided in the sanitation vehicle according to the present invention. Intention. detailed description
  • a swivel joint is provided, and Fig. 1 is a front view of a swivel joint according to an embodiment of the present invention.
  • the swivel joint includes a core body 10 and a casing 20 sleeved outside the core body 10.
  • the casing 20 and the core body 10 are relatively rotatable, and a core 10 and the casing 20 are formed.
  • annular groove that communicates with the exterior of the swivel joint through the first passage 21 on the housing 20 and the second passage 14 in the core 10, wherein the annular groove includes a first annular groove 11 and a second annular groove 12 And an isolation groove 13 disposed between the first annular groove 11 and the second annular groove 12, the isolation groove 13 communicating with the outside of the casing 20.
  • hydraulic oil is introduced into the first annular groove 11 from the first passage 21 (second passage 14) corresponding to the first annular groove 11, and flows into the second passage 14 through the first annular groove 11 (
  • the first passage 21) transfers hydraulic oil from the upper portion (lower portion) of the swivel joint to the lower portion (upper portion) of the swivel joint.
  • Water or washing liquid flows into the second annular groove 12 from the first passage 21 corresponding to the second annular groove 12, and flows into the second passage 14 corresponding to the second annular groove 12 through the second annular groove 12, and passes through A steel pipe 15 communicating with the second passage 14 flows out of the swivel joint.
  • the hydraulic oil in the first annular groove 11 leaks, the hydraulic oil in the first annular groove 11 flows into the isolation groove 13 along the gap between the core 10 and the casing 20, and is led out from the isolation groove 13. It is outside the casing 20 and does not flow into the second annular groove 12.
  • the leaked liquid also flows into the isolation groove 13 and is led out of the isolation groove 13 to the outside of the casing 20 without flowing into the first annular groove 12. Thereby, the liquid in the first annular groove 11 and the second annular groove 12 is prevented from colliding with each other.
  • the isolation slot 13 can be in communication with the exterior of the housing 20 in a variety of ways, for example, in a housing
  • a flow path is provided in the body 20, and the isolation groove 13 is communicated with the outside of the casing 20.
  • a flow path may be provided in the core 10 to communicate the isolation groove 13 with the outside of the casing 20.
  • Seal ring 50 may be provided between the respective annular grooves to prevent liquid mutual entanglement between the different annular grooves.
  • the seal ring 50 may include an O-ring 51 and a grid 52 disposed outside the O-ring 51.
  • an alkaline washing liquid e.g., soapy water
  • the O-ring 51 and the Glyd ring 52 can have an alkali-proof property, thereby preventing the O-ring 51 and the Glyd ring 52 from being corroded.
  • a flow guiding hole 22 may be provided in the casing 20, which communicates the isolation groove 13 with the outside of the casing 20. Further preferably, the flow guiding holes 22 are disposed along the radial direction of the housing 20.
  • the swivel joint according to the present invention may further include a draft tube 30 and a liquid collection bottle 40, the liquid collection bottle 40 is disposed outside the casing 10, and the draft tube 30 passes the liquid collection bottle through the flow guiding hole 22. 40 is in communication with the isolation slot 13. The liquid flowing into the isolation tank 13 can be easily guided to the outside of the casing 20 by the draft tube 30.
  • the liquid collection bottle 40 is transparent.
  • the liquid in the liquid collection bottle 40 is mostly hydraulic oil, and if the seal between the second annular groove 12 and the isolation groove 13 fails, The liquid in the liquid collection bottle 40 is mostly water or a washing liquid.
  • the position at which the leak occurs can be judged by observing the color of the liquid in the liquid collection bottle 40, and the seal ring 50 at the position can be replaced.
  • the first annular groove 11, the second annular groove 12 and the isolation groove 13 may be disposed on the outer surface of the core 10 or on the inner surface of the casing 20.
  • the first annular groove 11, the first At least one of the two annular grooves 12 and the isolation grooves 13 is provided on the outer surface of the core 10.
  • the first annular groove 11, the second annular groove 12, and the isolation groove 13 are all disposed on the outer surface of the core 10.
  • the first annular groove 11, the second annular groove 12, and the isolation groove 13 can be obtained by ordinary turning.
  • first annular grooves 11, and/or a plurality of second annular grooves 12 there are a plurality of first annular grooves 11, and/or a plurality of second annular grooves 12.
  • first annular grooves 11 and two second annular grooves 12 are two.
  • the number of annular grooves and isolation grooves 13 is determined by the specific function of the swivel joint.
  • the first passage 21 is disposed on the housing 20 in a radial direction to facilitate machining of the first passage 21.
  • the second passage 14 includes an axial bore 14a extending in the axial direction of the core 10 and a radial bore 14b extending along the radial direction of the core 10, the radial bore 14b enclosing the axial bore 14a with the first ring
  • the groove 11 or the second annular groove 12 is in communication.
  • This form of second passage 14 is also very easy to obtain.
  • the outer surface of the core 10 the inner surface of the casing 20, the inner surface of the first passage 21, and the second passage 14 are provided. At least one of the inner surfaces is provided with a chrome plating layer.
  • a sanitation vehicle including a swivel joint, wherein the swivel joint is the above-described swivel joint provided in the present invention.
  • the swivel joint according to the present invention When the swivel joint according to the present invention is used for a sanitation vehicle, it is necessary to provide a shift fork 70 on the outer side of the casing 20 and a connecting plate 60 on the lower portion of the core body 10.
  • the shift fork 70 When the swivel joint is installed, the shift fork 70 is fixedly attached to the upper platform 80 of the sanitation vehicle, and the connecting plate 60 is fixedly attached to the lower platform 90.
  • the shift fork 70 When the upper platform 80 rotates, the shift fork 70 is rotated to drive the housing 20 to rotate.
  • the swivel joint of the present invention when the swivel joint of the present invention is used for a sanitation vehicle, it is connected to the second passage 14 through the steel pipe 15 to transfer hydraulic oil, water, washing liquid, and the like.
  • the hydraulic oil passes into the first annular groove 11 from the first passage 21 (second passage 14) corresponding to the first annular groove 11, and flows into the second passage 14 (the first passage 21) through the first annular groove 11 Transfer hydraulic oil from the upper part (lower part) of the swivel joint to the lower part (upper part) of the swivel joint.
  • Water or washing liquid flows into the second annular groove 12 from the first passage 21 corresponding to the second annular groove 12, and flows into the second passage 14 corresponding to the second annular groove 12 through the second annular groove 12, and passes through versus
  • the steel pipe 15 that communicates with the second passage 14 flows out of the swivel joint.
  • the hydraulic oil in the first annular groove 11 leaks, the hydraulic oil in the first annular groove 11 flows into the isolation groove 13 along the gap between the core 10 and the casing 20, and is led out from the isolation groove 13. It is outside the casing 20 and does not flow into the second annular groove 12.
  • the leaked liquid also flows into the isolation groove 13 and is led out of the isolation groove 13 to the outside of the casing 20 without flowing into the first annular groove 12. Thereby, the liquid in the first annular groove 11 and the second annular groove 12 is prevented from colliding with each other.
  • the sanitation vehicle is a wall washer. Hydraulic oil is introduced into the first annular groove 11, and water and/or washing liquid is introduced into the second annular groove 12 to clean the wall of the building.
  • the number of the first annular grooves 11 is three, and the number of the second annular grooves 12 is two, and accordingly, the numbers of the first passage and the second passage are respectively Five.
  • the three first annular grooves 11 are each for the passage of hydraulic oil, one of the two second annular grooves 12 for introducing water, and the other for introducing a washing liquid (e.g., soapy water, etc.). Thereby cleaning the wall.
  • the sanitation vehicle according to the present invention is not limited to a wall washing vehicle, but may also be a variety of sanitation vehicles such as a road cleaning vehicle and a water sprinkler.
  • the invention provides an isolation groove between the first annular groove (for example, hydraulic oil) and the second annular groove (for example, water or washing liquid), and if the liquid in the first annular groove leaks, it flows into the isolation groove. If liquid leakage in the second annular groove also flows into the isolation groove, the problem of liquid mutual enthalpy in the first annular groove and the second annular groove is solved.
  • first annular groove for example, hydraulic oil
  • second annular groove for example, water or washing liquid

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Joints Allowing Movement (AREA)

Abstract

Cette invention concerne un connecteur rotatif, comprenant un corps central (10) et un boîtier (20) qui forme le chemisage dudit corps central. Ledit boîtier est mobile par rapport au corps central (10) et une rainure annulaire est formée entre le corps central (10) et le boîtier (20). Ladite rainure annulaire communique avec l'extérieur du connecteur rotatif par l'intermédiaire d'un premier canal (21) ménagé dans le boîtier (20) et d'un second canal (14) ménagé dans le corps central (10), la rainure annulaire comprenant une première rainure annulaire (11), une seconde rainure annulaire (12) et une rainure de séparation (13) ménagée entre la première rainure annulaire (11) et la seconde rainure annulaire (12). La rainure de séparation (13) est en communication avec l'extérieur du boîtier (20). L'invention concerne en outre un véhicule d'assainissement comprenant ledit connecteur rotatif. La présence de la rainure de séparation (13) entre le corps central (10) et le boîtier (20) entraîne l'écoulement du liquide fuyant à partir de la première rainure annulaire (11) ou de la seconde rainure annulaire (12) à l'intérieur de la rainure de séparation (13) permet de résoudre le problème du contact par écoulement entre le liquide situé dans la première rainure annulaire (11) et le liquide situé dans la seconde rainure annulaire (12).
PCT/CN2011/078690 2011-08-22 2011-08-22 Connecteur rotatif et véhicule d'assainissement le comprenant WO2013026191A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/078690 WO2013026191A1 (fr) 2011-08-22 2011-08-22 Connecteur rotatif et véhicule d'assainissement le comprenant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/078690 WO2013026191A1 (fr) 2011-08-22 2011-08-22 Connecteur rotatif et véhicule d'assainissement le comprenant

Publications (1)

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WO2013026191A1 true WO2013026191A1 (fr) 2013-02-28

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2751473Y (zh) * 2004-12-06 2006-01-11 徐州工程机械科技股份有限公司徐工研究院 水电液多通路中心回转接头
WO2006135748A2 (fr) * 2005-06-09 2006-12-21 Williams Allan R Segment de piston a galet ellipsoidal
US20080134761A1 (en) * 2006-12-06 2008-06-12 Bryce Peter W Oil Entrapment and Containment Channel for Above Ground Pipelines
JP2008284514A (ja) * 2007-05-21 2008-11-27 Kao Corp 水中油型乳化組成物の製造方法
EP2006587A1 (fr) * 2007-06-22 2008-12-24 Peugeot Citroen Automobiles SA Système de clapet d'étanchéité
CN201198577Y (zh) * 2008-05-14 2009-02-25 江阴市长龄液压机具厂 八通道液压中央回转体

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2751473Y (zh) * 2004-12-06 2006-01-11 徐州工程机械科技股份有限公司徐工研究院 水电液多通路中心回转接头
WO2006135748A2 (fr) * 2005-06-09 2006-12-21 Williams Allan R Segment de piston a galet ellipsoidal
US20080134761A1 (en) * 2006-12-06 2008-06-12 Bryce Peter W Oil Entrapment and Containment Channel for Above Ground Pipelines
JP2008284514A (ja) * 2007-05-21 2008-11-27 Kao Corp 水中油型乳化組成物の製造方法
EP2006587A1 (fr) * 2007-06-22 2008-12-24 Peugeot Citroen Automobiles SA Système de clapet d'étanchéité
CN201198577Y (zh) * 2008-05-14 2009-02-25 江阴市长龄液压机具厂 八通道液压中央回转体

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