WO2021179410A1 - 一种叶轮驱动式旋转喷嘴及其旋转速度调节方法 - Google Patents

一种叶轮驱动式旋转喷嘴及其旋转速度调节方法 Download PDF

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WO2021179410A1
WO2021179410A1 PCT/CN2020/086553 CN2020086553W WO2021179410A1 WO 2021179410 A1 WO2021179410 A1 WO 2021179410A1 CN 2020086553 W CN2020086553 W CN 2020086553W WO 2021179410 A1 WO2021179410 A1 WO 2021179410A1
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rotating body
impeller
nozzle
damping device
rotating
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PCT/CN2020/086553
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English (en)
French (fr)
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朱兴业
袁寿其
姜晨龙
穆罕默德·伊姆兰·可罕
陆梦雅
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江苏大学
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Priority to JP2022554403A priority Critical patent/JP7288726B2/ja
Publication of WO2021179410A1 publication Critical patent/WO2021179410A1/zh

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
    • B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
    • B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
    • 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
    • A01G25/02—Watering arrangements located above the soil which make use of perforated pipe-lines or pipe-lines with dispensing fittings, e.g. for drip irrigation
    • 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 relates to the technical field of agricultural water-saving irrigation, in particular to an impeller-driven rotary nozzle and a method for adjusting its rotation speed.
  • Rotary spraying element is the key equipment in the sprinkler micro-irrigation system, and its performance directly affects the effect of irrigation.
  • the widely used rotary spraying element equipment has the following shortcomings in the application, which is realized in the spraying element equipment
  • the important hydraulic performance of the rotary spraying element is not easy to adjust, such as the rotation speed, spraying range, spraying uniformity, spraying water droplet particle size and other parameters; This kind of resistance can complete the spraying, resulting in high energy consumption. Therefore, the current rotary spraying element equipment is not suitable for simultaneous application in application scenarios with different hydraulic performance parameters.
  • the driving part cannot obtain sufficient driving force under special circumstances, causing the spraying element to fail to complete stable rotation work. The key technical issues.
  • the present invention provides an impeller-driven rotary nozzle and a method for adjusting its rotation speed.
  • the solution to be solved is that the structure of the rotary spray element is complex, the hydraulic performance parameters are not easy to adjust, the energy consumption is high, and the work is not enough.
  • the key technical issue of stability has the advantages of simple product structure, low energy consumption, and reliable operation.
  • the present invention achieves the above-mentioned technical objects through the following technical means.
  • An impeller-driven rotating nozzle including a damping device, a rotating body, a nozzle and an impeller;
  • the nozzle is installed on the support frame; one end of the rotating body can be rotatably installed on the nozzle; the rotating body is provided with an impeller, and the impeller drives the rotating body to rotate through the nozzle; the other end of the rotating body can be rotatably installed On the support frame, a damping device is provided between the rotating body and the support frame for adjusting the resistance during the rotation of the rotating body.
  • both ends of the rotating body are respectively provided with grooves, one end of the rotating body passes through the nozzle in the groove, and a plane thrust support is provided between one end of the rotating body and the nozzle; the other end of the rotating body is concave
  • a damping device is arranged in the groove, one end of the damping device is connected with one end of the shaft, a rolling bearing is arranged between the groove on the other end of the rotating body and the shaft; the other end of the shaft is connected with the support frame.
  • the damping device in the groove at the other end of the rotating body generates a positive pressure between one end of the rotating body and the planar thrust support, which is used for the frictional resistance generated by the rotating body during the rotation.
  • damping coefficient of the damping device is adjusted through the shaft for adjusting the rotation speed of the rotating body.
  • the structure of the impeller is a closed impeller or a semi-open impeller or an open impeller.
  • the blades on the impeller are flat blades, cylindrical blades or twisted blades.
  • the spraying pipeline includes a pressure gauge, a regulating valve, and a water inlet pipeline; Water pressure; a pressure gauge is provided on the water inlet pipeline to read the working pressure of the water flow in the pipeline.
  • the damping device is a damping shaft or spring damping or plastic material damping.
  • a method for adjusting the rotation speed of an impeller-driven rotating nozzle includes the following steps:
  • the positive pressure F set by one end of the rotating body and the plane thrust support is applied by a damping device, and the water stream is sprayed to the impeller through the nozzle to drive the rotating body to rotate;
  • the impeller-driven rotating nozzle of the present invention can change the rotation speed of the rotating body by changing the damping coefficient of the damping device, and realize the effective adjustment of the important hydraulic performance parameter of the rotation speed under any working pressure, so as to realize the operation
  • the technical effect of stable and reliable rotating work can also achieve the function of solving the technical problem that the spraying element cannot complete the stable rotating work.
  • the impeller-driven rotating nozzle of the present invention can change the rotation speed, spray range, spray uniformity, and spray water droplets by changing the structure of the impeller on the impeller, the number of blades, the shape of the blades and the form of the flow channel. Particle size hydraulic performance parameters.
  • the setting of a closed impeller can effectively increase its spray range, the setting of a half-open impeller can effectively improve its spray uniformity, and the setting of an open impeller can effectively reduce the particle size of its sprayed water droplets.
  • Fig. 1 is a schematic diagram of the structure of the impeller-driven rotary nozzle according to the present invention.
  • Fig. 2 is a view from the direction A in Fig. 1.
  • the impeller-driven rotary nozzle of the present invention includes a damping device 4, a rotating body 6, a nozzle 12, a spraying pipeline and an impeller 8;
  • the nozzle 12 is installed on the support frame 9, and the nozzle 12 is threadedly connected with the water inlet pipe 15, and the connection position of the nozzle 12 is fixed by a lock nut 11. Both ends of the rotating body 6 are respectively provided with grooves, one end of the rotating body 6 passes through the nozzle 12 in the groove, one end of the rotating body 6 is rotatably mounted on the nozzle 12, and one end of the rotating body 6 is connected to the nozzle 12 A plane thrust support is provided between the nozzles 12; a damping device 4 is provided in the groove at the other end of the rotating body 6 to adjust the resistance during the rotation of the rotating body 6.
  • One end of the damping device 4 is connected to one end of the shaft 1, a rolling bearing 5 is provided between the groove at the other end of the rotating body 6 and the shaft 1; the other end of the shaft 1 is screwed to the support frame 9.
  • An adjusting nut 2 is installed on the other end of the shaft 1, and the position of the shaft 1 is adjusted by the adjusting nut 2 to adjust the damping coefficient of the damping device 4 for adjusting the rotation speed of the rotating body 6.
  • a washer 3 is installed between the adjusting nut 2 and the shaft 1, the rotating body 6 is provided with an impeller 8, and the impeller 8 drives the rotating body 6 to rotate through the nozzle 12.
  • the spraying pipeline includes a pressure gauge 13, a regulating valve 14 and a water inlet pipe 15.
  • the water inlet pipe 15 is connected to the nozzle 12, and the water inlet pipe 15 is provided with a regulating valve 14 for adjusting the water flow in the pipeline. Water pressure;
  • the water inlet pipe 15 is provided with a pressure gauge 13 for reading the working pressure of the water flow in the pipe.
  • the planar thrust support of the present invention is a thrust ball bearing 10.
  • the damping device 4 generates a positive pressure between one end of the rotating body 6 and the thrust ball bearing 10, which is used for the frictional resistance generated by the rotating body 6 during the rotation process. .
  • the impeller 8 is provided with 6 cylindrical blades 16, and the blade 16 forms a curved flow channel 7.
  • the driving force of the water flow on the impeller 8 is generated, and the driving force is decomposed It is the radial force and the axial force, where the radial force of the water flow is used to realize the spraying work of the rotating element, and the axial force of the water flow is used to realize the rotational movement of the rotating body 6.
  • the three-dimensional structure of the impeller 8 is a space curved structure, which is composed of blades and front and rear cover plates.
  • the structure of the impeller 8 can be set to a closed impeller, a semi-open impeller, an open impeller, and other forms.
  • the structure of the impeller can effectively adjust many important hydraulic performance parameters such as range, spray uniformity, and spray droplet particle size.
  • the setting of the closed impeller can effectively improve its spray range
  • the setting of the semi-open impeller can effectively improve its spray uniformity
  • the setting of the open impeller The setting can effectively reduce the particle size of the sprayed water droplets.
  • the blades 16 on the impeller 8 are flat blades, cylindrical blades or twisted blades.
  • the function of the blade is to form a flow channel through the setting of the shape.
  • the driving force of the water flow on the impeller is generated.
  • the driving force can be decomposed into the radial force and the axial force.
  • the radial force of the water flow is used
  • the axial force of the water flow is used to realize the rotating movement of the rotating body.
  • the number of blades on the impeller, the shape of the blades, and the form of the flow channel have an impact on the rotation speed, spray range, spray uniformity, and spray droplet particle size.
  • the optimal hydraulic performance can be optimized by setting them. .
  • the damping device 4 is a damping shaft or spring damping or plastic material damping.
  • the damping shaft can be adjusted to change the rotation resistance between the rotating body and the bearing;
  • the spring damping can be adjusted to change the positive pressure between the rotating body 6 and the thrust ball bearing 10;
  • the plastic material damping can be changed at the same time by adjusting The rotation resistance between the rotating body 6 and the rolling bearing 5 and the positive pressure between the rotating body 6 and the thrust ball bearing 10.
  • Example 1 The structure of the impeller 8 is in the shape of a half-open impeller including blades and a rear cover.
  • the damping device 4 adopts spring damping.
  • the spray uniformity coefficient is 88%.
  • the range is 7.4 meters, and the median particle size of the sprayed water droplets is 0.7 mm.
  • the rotation speed can be changed to 60 seconds per revolution, the spray uniformity coefficient is 85%, the spray range is 7.9 meters, and the median diameter of sprayed water droplets is 0.9 mm.
  • Embodiment 2 The damping device 4 adopts spring damping.
  • the structure of the impeller 8 is a closed impeller shape including blades, front and rear cover plates, the rotation speed is 20 seconds per revolution, the spray uniformity coefficient is 75%, and the spray range is 9.8 meters, the median diameter of sprayed water droplets is 1.2 mm.
  • the spraying range of the adjustable rotating element with the impeller drive performance is improved.
  • Example 3 The damping device 4 adopts spring damping.
  • the structure of the impeller 8 is a semi-open impeller shape including blades and a rear cover.
  • the rotation speed is 20 seconds per revolution
  • the spray uniformity coefficient is 87%
  • the spray range is 7.6 M
  • the median particle size of the sprayed water droplets is 0.8 mm. Improved the spray uniformity of the rotating element with adjustable impeller drive performance.
  • Embodiment 4 The damping device 4 adopts spring damping.
  • the structure of the impeller 8 is an open impeller shape that only includes blades.
  • the rotation speed is 20 seconds per revolution, the spray uniformity coefficient is 84%, and the spray range is 4.9 meters.
  • the median particle size is 0.5 mm. The particle size of the sprayed water droplets of the rotating element with adjustable impeller drive performance is reduced.
  • Important hydraulic performance parameters of an impeller-driven rotating nozzle include rotation speed, spraying range, spraying uniformity, and spraying water droplet particle size. These important hydraulic performance parameters are simultaneously affected by the damping device 4 and the impeller 8. Through the above examples, it is proved that adjusting the damping device 4 can change its rotation speed.
  • the closed impeller can increase its spray range, and the semi-open impeller is used.
  • the uniformity of spraying can be improved, and the particle size of the sprayed water droplets can be reduced by using an open impeller.
  • a method for adjusting the rotation speed of an impeller-driven rotating nozzle includes the following steps:
  • the positive pressure F set by one end of the rotating body 6 and the plane thrust support is applied by the damping device 4, and the water flow is sprayed to the impeller 8 through the nozzle 12 to drive the rotating body 6 to rotate.
  • the damping coefficient of the damping device 4 is increased through the shaft 1 to increase the positive pressure F and increase the friction resistance of the rotating body 6 during the rotation, thereby reducing the rotation speed of the rotating body 6;

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  • Life Sciences & Earth Sciences (AREA)
  • Soil Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Water Supply & Treatment (AREA)
  • Environmental Sciences (AREA)
  • Nozzles (AREA)

Abstract

一种叶轮驱动式旋转喷嘴及其旋转速度调节方法，包括阻尼装置（4）、旋转体（6）、喷嘴（12）和叶轮（8）；喷嘴（12）安装在支撑架（9）上；旋转体（6）一端可旋转安装在喷嘴（12）上；旋转体（6）上设有叶轮（8），通过喷嘴（12）使叶轮（8）带动旋转体（6）旋转；旋转体（6）另一端可旋转安装在支撑架（9）上，旋转体（6）与支撑架（9）之间设有阻尼装置（4），用于调节旋转体（6）旋转过程中的阻力。

Description

一种叶轮驱动式旋转喷嘴及其旋转速度调节方法 技术领域
本发明涉及农业节水灌溉技术领域，特别涉及一种叶轮驱动式旋转喷嘴及其旋转速度调节方法。
背景技术
旋转式喷洒元件是喷微灌系统中的关键装备，其性能的好坏直接影响到灌溉的效果，目前广泛使用的旋转式喷洒元件设备在应用中存在着以下的缺点，喷洒元件设备中所实现的重要水力性能不容易进行调节，例如旋转速度、喷洒射程、喷洒均匀性、喷洒水滴的粒径等参数；旋转式喷洒元件驱动部件的结构形式较为复杂，在实现旋转的工作过程中需要克服各种阻力才能完成喷洒导致能耗高等情况。因此，目前的旋转式喷洒元件设备不适合同时应用于水力性能参数要求不同的应用场景，还存在着在特殊的情况下驱动部件不能获得足够大的驱动力，造成喷洒元件不能完成稳定的旋转工作的关键技术问题。
发明内容
针对现有技术中存在的不足，本发明提供了一种叶轮驱动式旋转喷嘴及其旋转速度调节方法，所要解决的是旋转式喷洒元件结构复杂、水力性能参数不易调节、能耗高、工作不够稳定的关键技术问题，具有产品结构简单、能耗低、运行可靠等优点。
本发明是通过以下技术手段实现上述技术目的的。
一种叶轮驱动式旋转喷嘴，包括阻尼装置、旋转体、喷嘴和叶轮；
所述喷嘴安装在支撑架上；所述旋转体一端可旋转安装在喷嘴上；所述旋转体上设有叶轮，通过喷嘴使所述叶轮带动旋转体旋转；所述旋转体另一端可旋转安装在支撑架上，所述旋转体与支撑架之间设有阻尼装置，用于调节所述旋转体旋转过程中的阻力。
进一步，所述旋转体两端分别设置有凹槽，所述旋转体一端凹槽内穿过所述喷嘴，所述旋转体一端与喷嘴之间设有平面推力支撑；所述旋转体另一端凹槽内设有阻尼装置，所述阻尼装置一端与轴一端连接，所述旋转体另一端凹槽与轴之间设有滚动轴承；所述轴另一端与支撑架连接。
进一步，旋转体另一端凹槽内的所述阻尼装置使所述旋转体一端与平面推力支撑之间产生正压力，用于旋转体在旋转过程中产生的摩擦阻力。
进一步，通过轴调节阻尼装置的阻尼系数，用于调节所述旋转体的旋转速度。
进一步，所述叶轮的结构形式为闭式叶轮或半开式叶轮或开式叶轮。
进一步，所述叶轮上的叶片为平板叶片或圆柱形叶片或扭曲叶片。
进一步，还包括喷洒管路，所述喷洒管路包括压力表、调节阀门和入水管路；所述入水管路与喷嘴连接，所述入水管路上设置调节阀门，用于调节管路中水流的水压；所述入水管路上设置有压力表，用于读取管路中水流的工作压力。
进一步，所述阻尼装置为阻尼转轴或弹簧阻尼或塑性材料阻尼。
一种叶轮驱动式旋转喷嘴的旋转速度调节方法，包括如下步骤：
通过阻尼装置施加所述旋转体一端与平面推力支撑设定的正压力F，水流通过喷嘴喷射至叶轮后带动旋转体旋转；
当所述旋转体旋转速度过快时，通过轴增加阻尼装置的阻尼系数，使正压力F增加，增加旋转体在旋转过程中的摩擦阻力，从而降低旋转体的旋转速度；
当所述旋转体旋转速度过慢时，通过轴减少阻尼装置的阻尼系数，使正压力F减少，减少旋转体在旋转过程中的摩擦阻力，从而提高旋转体的旋转速度。
本发明的有益效果在于：
1.本发明所述的叶轮驱动式旋转喷嘴，通过改变阻尼装置的阻尼系数，可以改变旋转体的转速，实现在任何工作压力下有效的调节旋转速度这项重要的水力性能参数，从而实现运行稳定可靠的旋转工作的技术效果，还可以达到解决喷洒元件不能完成稳定的旋转工作技术问题的作用。
2.本发明所述的叶轮驱动式旋转喷嘴，通过改变叶轮上叶轮的结构形式、叶片的数量、叶片的形状以及流道的形式，可以改变旋转速度、喷洒射程、喷洒均匀性、喷洒水滴的粒径水力性能参数。闭式叶轮的设置可以有效地提高其喷洒射程，半开式叶轮的设置可以有效地提高其喷洒均匀性，开式叶轮的设置可以有效地降低其喷洒水滴的粒径。通过叶轮结构的发明点和阻尼装置发明点的组合，可以方便可靠的对重要水力性能进行调节，从而实现了水力性能优化设置的技术效果，解决了喷洒设备在水力性能参数要求不同的应用场景中可以同时应用的实际问题。
附图说明
图1为本发明所述的叶轮驱动式旋转喷嘴结构示意图。
图2为图1的A向视图。
图中：
1-轴；2-调节螺母；3-垫片；4-阻尼装置；5-滚动轴承；6-旋转体；7-流道；8-叶轮；9-支撑架；10-推力球轴承；11-锁紧螺母；12-喷嘴；13-压力表；14-调节阀门；15-入水管路；16-叶片。
具体实施方式
下面结合附图以及具体实施例对本发明作进一步的说明，但本发明的保护范围并不限于此。
如图1所示，本发明所述的叶轮驱动式旋转喷嘴，包括阻尼装置4、旋转体6、喷嘴12、喷洒管路和叶轮8；
所述喷嘴12安装在支撑架9上，所述喷嘴12与入水管路15螺纹连接，通过锁紧螺母11对喷嘴12连接位置进行固定。所述旋转体6两端分别设置有凹槽，所述旋转体6一端凹槽内穿过所述喷嘴12，所述旋转体6一端可旋转安装在喷嘴12上，所述旋转体6一端与喷嘴12之间设有平面推力支撑；所述旋转体6另一端凹槽内设有阻尼装置4，用于调节所述旋转体6旋转过程中的阻力。所述阻尼装置4一端与轴1一端连接，所述旋转体6另一端凹槽与轴1之间设有滚动轴承5；所述轴1的另一端与支撑架9螺纹连接。所述轴1的另一端上安装调节螺母2，通过调节螺母2调节轴1的位置，从而调节阻尼装置4的阻尼系数，用于调节所述旋转体6的旋转速度。调节螺母2与轴1之间安装垫片3，所述旋转体6上设有叶轮8，通过喷嘴12使所述叶轮8带动旋转体6旋转。
所述喷洒管路包括压力表13、调节阀门14和入水管路15；所述入水管路15与喷嘴12连接，所述入水管路15上设置调节阀门14，用于调节管路中水流的水压；所述入水管路15上设置有压力表13，用于读取管路中水流的工作压力。
本发明所述的平面推力支撑为推力球轴承10，所述阻尼装置4使所述旋转体6一端与推力球轴承10之间产生正压力，用于旋转体6在旋转过程中产生的摩擦阻力。
如图2所示，所述叶轮8上设置有6片圆柱形叶片16，叶片16中形成弯曲流道7，水流通过流道7的时候，产生了水流对叶轮8的驱动力，驱动力分解为径向力和轴向力，其中水流的径向力用于实现旋转元件的喷洒工作，水流的轴向力用于实现旋转体6的旋转运动。
所述叶轮8的三维结构为空间曲面结构，由叶片与前、后盖板组成。所述叶轮8叶轮的结构形式可设置为闭式叶轮、半开式叶轮和开式叶轮等多种形式。叶轮的结构形式的设置可以有效的调节射程、喷洒均匀性和喷洒水滴的粒径等多项重要的水力性能参数。在其它结构工作参数设置相同的前提情况下，所述闭式叶轮的设置可以有效地提高其喷洒射程，所述半开式叶轮的设置可以有效地提高其喷洒均匀性，所述开式叶轮的设置可以有效地降低其喷洒水滴的粒径。所述叶轮8上的叶片16为平板叶片或圆柱形叶片或扭曲叶片。叶片的作用是通过形状的设置形成了流道，在水流通过流道的时候，产生了水流对叶轮的驱动力，驱动力可分解为径向力和轴向力，其中水流的径向力用于实现旋转元件的喷洒工作，水流的轴向力用于实现旋转体的旋转运动。叶轮上叶片的数量、叶片的形状、以及流道的形式对旋转速度、 喷洒射程、喷洒均匀性、喷洒水滴的粒径均有着影响，可以通过对它们的设定完成最佳水力性能的优化设置。打开调节阀门14，水流通过喷嘴12喷射至叶轮8，确定入水管路15上达到所需流量为0.35立方米每小时，压力表13上显示出喷嘴12上的工作压力为0.2兆帕，实现了旋转体6的旋转运动工作。
所述阻尼装置4为阻尼转轴或弹簧阻尼或塑性材料阻尼。所述阻尼转轴通过调节可以改变旋转体与轴承之间的旋转阻力；所述弹簧阻尼通过调节可以改变旋转体6与推力球轴承10之间的正压力；所述塑性材料阻尼通过调节同时可以改变旋转体6与滚动轴承5之间的旋转阻力和旋转体6与推力球轴承10之间的正压力。
实施例1：叶轮8的结构形式为包括叶片和后盖板的半开式叶轮形状，阻尼装置4采用弹簧阻尼，试验记录的转速为10秒每圈时，喷洒均匀性系数为88％，喷洒射程为7.4米，喷洒水滴中数粒径为0.7毫米。通过调节阻尼装置4的阻尼系数后，转速可以改变为60秒每圈，喷洒均匀性系数为85％，喷洒射程为7.9米，喷洒水滴中数粒径为0.9毫米。
实施例2：阻尼装置4采用弹簧阻尼，叶轮8的结构形式为包括叶片、前、后盖板的闭式叶轮形状，旋转速度为20秒每圈，喷洒均匀性系数为75％，喷洒射程为9.8米，喷洒水滴中数粒径为1.2毫米。提高了叶轮驱动性能可调式旋转元件的喷洒射程。
实施例3：阻尼装置4采用弹簧阻尼，叶轮8的结构形式为包括叶片和后盖板的半开式叶轮形状，旋转速度为20秒每圈，喷洒均匀性系数为87％，喷洒射程为7.6米，喷洒水滴中数粒径为0.8毫米。提高了叶轮驱动性能可调式旋转元件的喷洒均匀性。
实施例4：阻尼装置4采用弹簧阻尼，叶轮8的结构形式为仅包括叶片的开式叶轮形状，旋转速度为20秒每圈，喷洒均匀性系数为84％，喷洒射程为4.9米，喷洒水滴中数粒径为0.5毫米。降低了叶轮驱动性能可调式旋转元件的喷洒水滴的粒径。
一种叶轮驱动式旋转喷嘴的重要水力性能参数包括旋转速度、喷洒射程、喷洒均匀性、喷洒水滴的粒径。这些重要水力性能参数同时受到了阻尼装置4以及叶轮8的影响，通过以上实施例，证明了调节阻尼装置4可以改变它的旋转速度，采用闭式叶轮可以提高其喷洒射程，采用半开式叶轮可以提高其喷洒均匀性，采用开式叶轮可以降低其喷洒水滴的粒径。
一种叶轮驱动式旋转喷嘴的旋转速度调节方法，包括如下步骤：
结构装配：
1.完成喷嘴12与入水管路15的螺纹连接，通过锁紧螺母11对喷嘴12连接位置进行固定。所述旋转体6一端凹槽内穿过所述喷嘴12，所述旋转体6一端可旋转安装在喷嘴12上，所述旋转体6一端与喷嘴12之间设有推力球轴承10；
2.完成轴1与支撑架9之间的螺纹连接，将阻尼装置4一端与轴1固定，阻尼装置4的 另一端置于旋转体6上端凹槽的底部。
3.通过阻尼装置4施加所述旋转体6一端与平面推力支撑设定的正压力F，水流通过喷嘴12喷射至叶轮8后带动旋转体6旋转。
转速调节：
当所述旋转体6旋转速度过快时，通过轴1增加阻尼装置4的阻尼系数，使正压力F增加，增加旋转体6在旋转过程中的摩擦阻力，从而降低旋转体6的旋转速度；
当所述旋转体6旋转速度过慢时，通过轴1减少阻尼装置4的阻尼系数，使正压力F减少，减少旋转体6在旋转过程中的摩擦阻力，从而提高旋转体6的旋转速度。
所述实施例为本发明的优选的实施方式，但本发明并不限于上述实施方式，在不背离本发明的实质内容的情况下，本领域技术人员能够做出的任何显而易见的改进、替换或变型均属于本发明的保护范围。

Claims (9)

  1. 一种叶轮驱动式旋转喷嘴，其特征在于，包括阻尼装置(4)、旋转体(6)、喷嘴(12)和叶轮(8)；
    所述喷嘴(12)安装在支撑架(9)上；所述旋转体(6)一端可旋转安装在喷嘴(12)上；所述旋转体(6)上设有叶轮(8)，通过喷嘴(12)使所述叶轮(8)带动旋转体(6)旋转；所述旋转体(6)另一端可旋转安装在支撑架(9)上，所述旋转体(6)与支撑架(9)之间设有阻尼装置(4)，用于调节所述旋转体(6)旋转过程中的阻力。
  2. 根据权利要求1所述的叶轮驱动式旋转喷嘴，其特征在于，所述旋转体(6)两端分别设置有凹槽，所述旋转体(6)一端凹槽内穿过所述喷嘴(12)，所述旋转体(6)一端与喷嘴(12)之间设有平面推力支撑；所述旋转体(6)另一端凹槽内设有阻尼装置(4)，所述阻尼装置(4)一端与轴(1)一端连接，所述旋转体(6)另一端凹槽与轴(1)之间设有滚动轴承(5)；所述轴(1)另一端与支撑架(9)连接。
  3. 根据权利要求2所述的叶轮驱动式旋转喷嘴，其特征在于，所述旋转体(6)另一端凹槽内的所述阻尼装置(4)使所述旋转体(6)一端与平面推力支撑之间产生正压力，用于旋转体(6)在旋转过程中产生的摩擦阻力。
  4. 根据权利要求3所述的叶轮驱动式旋转喷嘴，其特征在于，通过轴(1)调节阻尼装置(4)的阻尼系数，用于调节所述旋转体(6)的旋转速度。
  5. 根据权利要求2所述的叶轮驱动式旋转喷嘴，其特征在于，所述叶轮(8)的结构形式为闭式叶轮或半开式叶轮或开式叶轮。
  6. 根据权利要求5所述的叶轮驱动式旋转喷嘴，其特征在于，所述叶轮(8)上的叶片(16)为平板叶片或圆柱形叶片或扭曲叶片。
  7. 根据权利要求1所述的叶轮驱动式旋转喷嘴，其特征在于，还包括喷洒管路，所述喷洒管路包括压力表(13)、调节阀门(14)和入水管路(15)；所述入水管路(15)与喷嘴(12)连接，所述入水管路(15)上设置调节阀门(14)，用于调节管路中水流的水压；所述入水管路(15)上设置有压力表(13)，用于读取管路中水流的工作压力。
  8. 根据权利要求1-7任一项所述的叶轮驱动式旋转喷嘴，其特征在于，所述阻尼装置(4)为阻尼转轴或弹簧阻尼或塑性材料阻尼。
  9. 一种根据权利要求1-7任一项所述的叶轮驱动式旋转喷嘴的旋转速度调节方法，其特征在于，包括如下步骤：
    通过阻尼装置(4)施加所述旋转体(6)一端与平面推力支撑设定的正压力F，水流通过喷嘴(12)喷射至叶轮(8)后带动旋转体(6)旋转；
    当所述旋转体(6)旋转速度过快时，通过轴(1)增加阻尼装置(4)的阻尼系数，使正 压力F增加，增加旋转体(6)在旋转过程中的摩擦阻力，从而降低旋转体(6)的旋转速度；
    当所述旋转体(6)旋转速度过慢时，通过轴(1)减少阻尼装置(4)的阻尼系数，使正压力F减少，减少旋转体(6)在旋转过程中的摩擦阻力，从而提高旋转体(6)的旋转速度。
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