WO2015024271A1 - Appareil d'étanchéité pour pivot central de machine d'aspersion circulaire - Google Patents

Appareil d'étanchéité pour pivot central de machine d'aspersion circulaire Download PDF

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Publication number
WO2015024271A1
WO2015024271A1 PCT/CN2013/082258 CN2013082258W WO2015024271A1 WO 2015024271 A1 WO2015024271 A1 WO 2015024271A1 CN 2013082258 W CN2013082258 W CN 2013082258W WO 2015024271 A1 WO2015024271 A1 WO 2015024271A1
Authority
WO
WIPO (PCT)
Prior art keywords
spherical
sealing
seat
spherical seat
inlet pipe
Prior art date
Application number
PCT/CN2013/082258
Other languages
English (en)
Chinese (zh)
Inventor
韩自玺
韩自玉
韩登仑
张忠元
宋春林
刘建军
黄文平
朱希魁
王德宏
Original Assignee
甘肃华瑞农业股份有限公司
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 甘肃华瑞农业股份有限公司 filed Critical 甘肃华瑞农业股份有限公司
Publication of WO2015024271A1 publication Critical patent/WO2015024271A1/fr

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Classifications

    • 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
    • F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
    • F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
    • F16L27/06—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces with special sealing means between the engaging surfaces
    • F16L27/073—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces with special sealing means between the engaging surfaces one of the cooperating surfaces forming the sealing means
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G25/00—Watering gardens, fields, sports grounds or the like
    • A01G25/09—Watering arrangements making use of movable installations on wheels or the like
    • A01G25/092—Watering arrangements making use of movable installations on wheels or the like movable around a pivot centre
    • 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
    • F16L27/02—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction
    • F16L27/04—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces
    • F16L27/053—Universal joints, i.e. with mechanical connection allowing angular movement or adjustment of the axes of the parts in any direction with partly spherical engaging surfaces held in place by bolts passing through flanges
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/22—Improving land use; Improving water use or availability; Controlling erosion

Definitions

  • the invention belongs to the technical field of sprinkler irrigation and relates to a central pivot sealing device of a circular sprinkler.
  • sprinkler irrigation technology is a water-saving irrigation technology with advanced technology, stable performance, excellent water-saving effect and remarkable social and economic benefits.
  • the circular sprinkler has been widely promoted due to its large single irrigation area, strong adaptability to crops and terrain, high land utilization, high spray uniformity, high mechanization and automation, and energy saving. Good water saving and social and economic benefits have been achieved in irrigation.
  • the Chinese utility model patent 201220173311.4 discloses a sealing structure of a large circular sprinkler center center outlet pipe, which comprises a fixed inlet pipe and a rotating water pipe which are sleeved together, and a fixed inlet pipe or a rotating water pipe contact at the socket portion.
  • One or three annular grooves are arranged on the surface, and a Y-shaped rubber sealing ring is assembled in each annular groove.
  • the Chinese utility model patent 201120025484.7 discloses a water sealing device for the central fulcrum portion of the pointer type sprinkler, comprising an upper water supply pipe and a lower water supply pipe, and the upper water supply pipe is installed between the upper water supply pipe and the lower water supply pipe Lining, upper water supply pipe and upper water supply pipe lining welding Connected on the same axis, the outer wall of the upper water supply pipe is matched with the inner wall of the lower water supply pipe, and the inner wall of the lower water supply pipe is provided with a seal ring groove and a lip seal groove, and the seal ring groove and the lip seal groove are respectively installed There are 0 type seals and lip seals.
  • the Chinese utility model patent 201120293780.5 discloses a water-sealing structure of a central vertical pipe of a circular sprinkler, which comprises a rotating upper elbow, a central vertical pipe and a rotating lower elbow, and the upper end of the central vertical pipe is fixedly mounted with a rotating upper elbow, and the lower end of the central vertical pipe
  • the fixed installation of the rotating lower elbow is innovative: an annular projection is formed at the upper end of the central riser, a sealing rubber ring is installed in the annular projection, and the bottom end of the rotating upper elbow is inserted into the central vertical tube and passed through The sealing ring is sealed to the central standpipe.
  • the oscillating motion causes the frictional forces of the 0-type, Y-type, and lip-type seals in the above-mentioned patented technology to be different at each radial position, and the wear amount is uneven; 4)
  • the above-mentioned patented technology is installed on the rotary water pipe and fixed In the radial gap between the inlet pipes, the wear ring can not automatically compensate for the wear gap after the seal ring wears, resulting in serious leakage.
  • the transfer pipe and the fixed inlet pipe can be replaced and separated from each other, and the replacement and maintenance require large equipment such as a crane. The replacement work is labor intensive.
  • the top of the spherical seat is provided with a spherical seat upper flange, and an annular sealing gland is arranged above the upper flange of the spherical seat; the inner side of the sealing gland is provided with an annular second sealing groove An upper spherical sealing ring is mounted in the second sealing groove, and a side of the upper spherical sealing ring relative to the spherical body is a curved surface; and the upper flange of the spherical seat and the sealing gland are fixedly connected by bolts .
  • the design principle of the curved surface of the upper spherical seal is the same as that of the lower spherical seal.
  • a sealing adjustment washer is disposed between the upper flange of the spherical seat and the sealing gland, and the flange of the spherical seat, the sealing gland and the sealing adjusting washer are fixedly connected by bolts. Because there is a certain gap between the bottom of the upper spherical sealing ring and the upper flange of the spherical seat, when used, it can be equipped with sealing adjustment washers of different thicknesses. After the arc surface of the upper spherical sealing ring wears, the seal is replaced by a smaller thickness.
  • the inner wall of the second seal groove has an inclined surface at an angle of 45 degrees.
  • the inclined surface is designed to facilitate the oblique downward movement and the clearance compensation of the upper spherical sealing ring when the sealing adjustment washer with a small thickness is replaced, and the inclined upper surface spherical sealing ring has a diagonal downward pressing effect, which is favorable for the upper spherical sealing.
  • the circle fits to the spherical body.
  • the top opening of the spherical seat is in the same plane as the center of the spherical body. Further, the plane of the top opening of the spherical seat is slightly higher than the center of the spherical body. In this way, on the one hand, the degree of freedom of the upward movement of the spherical body can be limited; on the other hand, it is advantageous for the downward movement of the upper spherical sealing ring to compensate for the wear gap, because the upper spherical sealing ring and the spherical body are in the downward movement of the upper spherical sealing ring. The diameter of the contact surface is getting larger and larger, so that the relative clearance is getting smaller and smaller.
  • an expansion joint is disposed between the fixed inlet pipe and the spherical seat, and an upper end of the expansion joint is fixedly connected to a bottom end of the spherical seat, and a lower end of the expansion joint is fixedly connected to an upper end of the fixed inlet pipe.
  • the invention realizes the sealing by the spherical contact surface formed by the mutual pressing between the spherical seat and the spherical body, and the spherical shape formed by the gravity is compared with the cylindrical contact surface between the fixed inlet pipe and the rotating water pipe in the past.
  • the contact surface gap is extremely small, which can effectively solve the problem of water leakage due to the contact surface gap.
  • the sealing device of the invention is designed with a triple leakproof sealing structure: the lower spherical sealing ring functions as the first sealing, and the sealing is transported by the water pump from the fixed inlet pipe into the spherical seat and the spherical body.
  • the sealing gasket to function as the second seal, seal the leakage from the contact surface between the spherical body and the spherical seat after the leakage at the lower spherical sealing ring;
  • the upper spherical sealing ring serves as the third sealing
  • the function of sealing the leakage from the gap between the sealing gland and the spherical body, and the upper spherical sealing ring can also play a second sealing role to a certain extent.
  • the expansion or contraction of the fixed inlet pipe and the rotary water pipe eliminates the additional load on the sealing device caused by the expansion and contraction of the fixed inlet pipe and the rotary water pipe, reduces the stress and wear of the sealing device, and improves the service life of the sealing device. In order to minimize the leakage of seal failure.
  • FIG. 3 is a schematic structural view of a spherical seat of the present invention.
  • Figure 4 is a partial enlarged view of a portion A of Figure 3;
  • Figure 5 is a schematic structural view of a spherical body of the present invention.
  • Figure 6 is a schematic structural view of a lower spherical seal ring of the present invention.
  • Figure 8 is a schematic structural view of the upper spherical seal ring of the present invention.
  • Figure 9 is a schematic view showing the assembly of the upper spherical seal ring and the sealing gland according to the present invention.
  • Figure 11 is a schematic structural view of a fixed inlet pipe of the present invention
  • Figure 12 is a schematic view showing the structure of a rotary water pipe according to the present invention.
  • a circular sprinkler central fulcrum sealing device comprises a central fulcrum consisting of a fixed inlet pipe 2 and a rotating water pipe 3, a fixed inlet pipe 2 and a central tower of a circular sprinkler 1 fixed connection, the rotary water pipe 3 is connected to the central tower 1 through the bearing seat 4; a rotating spherical sealing assembly 5 is arranged between the fixed inlet pipe 2 and the rotary water pipe 3, and the rotating spherical sealing assembly 5 comprises a matching spherical surface
  • the water receiving hole 9 and the water passing hole 10 are respectively opened at the center of the spherical body 7 and the spherical body 8, and the spherical seat 7 and the spherical body 8, and the water passing hole 9 and the water passing hole 10 communicate with each other, and the inner side wall of the spherical seat 7 is provided.
  • the lower flange 18, the top end of the spherical body 8 is provided with a spherical upper flange 19, the upper end of the fixed inlet pipe 2 is provided with a fixed inlet pipe flange 22, and the lower end of the rotating water pipe 3 is provided with a rotating water supply pipe flange 23;
  • the upper end of the expansion joint 6 is fixedly connected to the bottom end of the spherical seat 7 through the expansion joint upper flange 21, the spherical seat lower flange 18 and the bolt, and the lower end of the expansion joint 6 passes through the expansion joint lower flange 20 and the fixed inlet water pipe flange 22
  • the bolt is fixedly connected to the upper end of the fixed inlet pipe 2;
  • the rotary water pipe 3 is fixedly connected to the spherical body 8 through the rotating water pipe flange 23, the spherical upper flange 19 and the bolt.
  • the irrigation water is passed through the fixed inlet pipe 2, the expansion joint 6, the water passing hole 9, the water passing hole 10, and the rotating water pipe 3 to reach the nozzle provided on the truss of the circular sprinkler to realize sprinkler irrigation.
  • the base seal is realized by the spherical contact surface formed by the squeeze between the spherical seat 7 and the spherical body 8 with a small gap, and the lower spherical seal ring 12, the upper spherical seal ring 17 and the seal adjusting washer 15 are simultaneously It acts as a seal to minimize water leakage.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Joints Allowing Movement (AREA)

Abstract

La présente invention porte sur un appareil d'étanchéité pour un pivot central d'une machine d'aspersion circulaire. L'appareil d'étanchéité comprend le pivot central, constitué par un tuyau d'entrée d'eau fixe (2) et un tuyau de distribution d'eau rotatif (3). Un ensemble d'étanchéité sphérique rotatif (5) est disposé entre le tuyau d'entrée d'eau fixe (2) et le tuyau de distribution d'eau rotatif (3). L'ensemble d'étanchéité comprend un siège sphérique (7) et un corps sphérique (8) qui sont en adaptation. Des trous d'écoulement d'eau communicants (9) sont disposés dans les centres du siège sphérique (7) et du corps cylindrique (8). Une première rainure d'étanchéité annulaire (11) est disposée sur un côté interne du siège sphérique (7). Une bague d'étanchéité sphérique inférieure (12) est disposée dans la première rainure d'étanchéité (11). L'extrémité inférieure du siège sphérique (7) est reliée de façon fixe au tuyau d'entrée d'eau fixe (2). L'extrémité supérieure du corps sphérique (8) est reliée de façon fixe au tuyau de distribution d'eau rotatif (3). L'étanchéité est réalisée à l'aide d'une surface de contact sphérique formée par serrage mutuel du siège sphérique et du corps sphérique, et les performances d'étanchéité sont bonnes. L'ensemble d'étanchéité sphérique rotatif a un degré élevé de liberté de mouvement, de telle sorte que le mouvement d'infléchissement et la charge additionnelle entre le tuyau de distribution d'eau rotatif et le tuyau d'entrée d'eau fixe peuvent être éliminés, de façon à éviter ainsi le phénomène d'usure non uniforme de la bague d'étanchéité, et à prolonger ainsi la durée de vie de l'appareil d'étanchéité.
PCT/CN2013/082258 2013-08-19 2013-08-26 Appareil d'étanchéité pour pivot central de machine d'aspersion circulaire WO2015024271A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310363974.1A CN103423535B (zh) 2013-08-19 2013-08-19 一种圆形喷灌机中心支轴密封装置
CN201310363974.1 2013-08-19

Publications (1)

Publication Number Publication Date
WO2015024271A1 true WO2015024271A1 (fr) 2015-02-26

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ID=49648695

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Application Number Title Priority Date Filing Date
PCT/CN2013/082258 WO2015024271A1 (fr) 2013-08-19 2013-08-26 Appareil d'étanchéité pour pivot central de machine d'aspersion circulaire

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CN (1) CN103423535B (fr)
AU (1) AU2013101705A4 (fr)
WO (1) WO2015024271A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109874476B (zh) * 2019-04-10 2021-10-26 山东农业工程学院 一种用于果树喷雾设备的立体可调式喷头
CN112931594A (zh) * 2021-04-02 2021-06-11 青岛丰禾星普科技有限公司 对虾分选装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR982411A (fr) * 1943-06-17 1951-06-11 Messier Sa Garnitures d'étanchéité sur plans de joint, rotules et autres
US4012060A (en) * 1975-03-31 1977-03-15 Reneau Bobby J Ball flex union
CN201496714U (zh) * 2009-09-08 2010-06-02 泰州市新方圆补偿器制造有限公司 耐高温波纹膨胀节
CN102261534A (zh) * 2011-05-04 2011-11-30 同济大学 一种具有大变形能力的新型管道柔性接头
CN102563254A (zh) * 2012-03-28 2012-07-11 天津佩霖分析仪器有限公司 新型旋转接头
CN202868155U (zh) * 2012-09-07 2013-04-10 江苏中兴水务有限公司 一种取水泵船的球形万向接头摇臂式联络管
CN203453675U (zh) * 2013-08-19 2014-02-26 甘肃华瑞农业股份有限公司 一种圆形喷灌机中心支轴密封装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2221680Y (zh) * 1995-01-24 1996-03-06 曹宗瑞 轴承接触式高效密封结构
JPH09229264A (ja) * 1996-02-19 1997-09-05 Ninomiya Sangyo Kk 屈曲・伸縮自在継手
CN2493725Y (zh) * 2001-06-03 2002-05-29 魏玺林 玻璃钢双玻节能保温推拉窗框料
CN2516613Y (zh) * 2001-12-01 2002-10-16 张书斌 浮沉式地漏
CN201706109U (zh) * 2010-05-11 2011-01-12 成都川路塑胶集团有限公司 校正密封水管接头
CN102878370A (zh) * 2012-09-19 2013-01-16 常州市常泰冷却设备有限公司 一种密封面为圆弧面的管接头装置
CN202812560U (zh) * 2012-09-22 2013-03-20 山东飞越机械有限公司 一种半分环法兰式球体旋转接头

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR982411A (fr) * 1943-06-17 1951-06-11 Messier Sa Garnitures d'étanchéité sur plans de joint, rotules et autres
US4012060A (en) * 1975-03-31 1977-03-15 Reneau Bobby J Ball flex union
CN201496714U (zh) * 2009-09-08 2010-06-02 泰州市新方圆补偿器制造有限公司 耐高温波纹膨胀节
CN102261534A (zh) * 2011-05-04 2011-11-30 同济大学 一种具有大变形能力的新型管道柔性接头
CN102563254A (zh) * 2012-03-28 2012-07-11 天津佩霖分析仪器有限公司 新型旋转接头
CN202868155U (zh) * 2012-09-07 2013-04-10 江苏中兴水务有限公司 一种取水泵船的球形万向接头摇臂式联络管
CN203453675U (zh) * 2013-08-19 2014-02-26 甘肃华瑞农业股份有限公司 一种圆形喷灌机中心支轴密封装置

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CN103423535A (zh) 2013-12-04
AU2013101705A4 (en) 2015-01-22
CN103423535B (zh) 2016-12-28

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