WO2014019311A1 - 喷雾装置和矿用机械 - Google Patents

喷雾装置和矿用机械 Download PDF

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Publication number
WO2014019311A1
WO2014019311A1 PCT/CN2012/085807 CN2012085807W WO2014019311A1 WO 2014019311 A1 WO2014019311 A1 WO 2014019311A1 CN 2012085807 W CN2012085807 W CN 2012085807W WO 2014019311 A1 WO2014019311 A1 WO 2014019311A1
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WIPO (PCT)
Prior art keywords
chamber
piston rod
piston
spray
air outlet
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.)
Ceased
Application number
PCT/CN2012/085807
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English (en)
French (fr)
Inventor
巴茵
戚克才
王天威
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Sany Heavy Equipment Co Ltd
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Sany Heavy Equipment Co Ltd
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Filing date
Publication date
Application filed by Sany Heavy Equipment Co Ltd filed Critical Sany Heavy Equipment Co Ltd
Publication of WO2014019311A1 publication Critical patent/WO2014019311A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
    • E21F5/02—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires by wetting or spraying
    • E21F5/04—Spraying barriers
    • 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
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
    • B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
    • B05B7/0433—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid with one inner conduit of gas surrounded by an external conduit of liquid upstream the mixing chamber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
    • B05B7/02—Spray pistols; Apparatus for discharge
    • B05B7/12—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages
    • B05B7/1254—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated
    • B05B7/1263—Spray pistols; Apparatus for discharge designed to control volume of flow, e.g. with adjustable passages the controlling means being fluid actuated pneumatically actuated
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B21/00—Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor
    • E21B21/01—Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes
    • E21B21/011—Dust eliminating or dust removing while drilling

Definitions

  • the utility model relates to the field of spray technology, in particular to a spray device and a mining machine. Background technique
  • the technical problem to be solved by the present invention is to provide a new spray device which can optimize the spray effect of the spray device and reduce the water consumption.
  • the present invention provides a spray device including a housing, a piston rod, a piston and a reset device, wherein: the housing is provided with an air inlet, a water inlet, an air outlet and a spray port, and The space enclosed by the casing is divided into a first chamber and a second chamber, and the air inlet communicates with the air outlet through the first chamber, and the water inlet passes through the second chamber Communicating with the spray port, the gas entering from the air inlet enters the air through the air outlet a second chamber is ejected from the spray port after mixing with water entering from the water inlet; the piston is sealingly fitted to the inner wall of the housing and slidably mounted in the first chamber, One end of the piston rod is fixed to the piston, and the other end is engaged with the inner wall of the air outlet.
  • the reset device drives the piston to bring the piston rod to reset to block the air outlet.
  • the piston rod when the gas pressure of the gas does not enter the first chamber from the air inlet or enters the first chamber from the air inlet is less than the pre-pressure of the reset device, the piston rod always blocks the air outlet, effectively preventing the gas from being effectively blocked.
  • the water entering the second chamber is mixed, and after mixing, a spray is formed, and the spray is sprayed from the spray port, which greatly improves the spray effect and the spray range of the spray device, the reaction is more sensitive, and since it is pressurized by air pressure, it does not need to be very
  • the high water pressure makes it easy to control the flow of water and effectively reduce water consumption.
  • the resetting device can be realized by an elastic member, for example, an elastic member can be disposed on one side of the piston, and when the elastic member is on the same side as the piston rod, a pre-tensioning force of the tension is set, when the elastic member is located on the other side of the piston Then set the compression preload.
  • an elastic member for example, an elastic member can be disposed on one side of the piston, and when the elastic member is on the same side as the piston rod, a pre-tensioning force of the tension is set, when the elastic member is located on the other side of the piston Then set the compression preload.
  • the end of the piston rod is tapered
  • the inner wall of the air outlet is an inner tapered surface that engages with the end of the piston rod.
  • the matching surface between the piston rod and the inner wall of the air outlet is a tapered surface, which reduces the contact area between the gas and the water, but increases the pressure of the gas, so that the atomization effect is better after the gas is ejected from the air outlet, and the spray coverage can be effectively improved. range.
  • the housing includes an end cover, a front cover, and a rear case, wherein: the end cover is fixedly coupled to the front case and encloses the second cavity with the front case room, The front case is fixedly coupled to the rear case and encloses the first chamber with the rear case; the spray port is disposed on the end cover, the water inlet, the air inlet and The air outlets are all disposed on the front case.
  • the housing is divided into an end cover, a front cover and a rear cover to facilitate the installation of components in the housing, and the spray device is more convenient to disassemble and assemble.
  • the spray device further includes a set screw and a nut, wherein: a bottom of the rear case is provided with a mounting hole, the set screw is installed in the mounting hole, and the screw of the set screw extends a through hole is formed in the piston; an end of the piston rod connected to the piston passes through a through hole in the piston and is connected to the nut, the nut and the The set screws cooperate to limit the maximum displacement of the piston rod.
  • the gas enters the first chamber from the air inlet and pushes the piston rod.
  • the displacement of the air outlet reaches the maximum, and the displacement of the piston rod excessively affects the pressure of the gas, which is formed by the spray device spray.
  • the time is too long, which in turn affects the work efficiency; the excessive displacement of the piston rod will cause the failure of the reset device, which will cause the dust to enter the air outlet and block the air outlet.
  • the nut and the set screw can cooperate to prevent the above. The occurrence of the situation makes the spray device more stable.
  • the end cap is threadedly coupled to the front shell, and/or the front shell is threadedly coupled to the rear shell.
  • the end caps are threaded to the front and/or front and rear shells for greater efficiency in the assembly and disassembly of the spray unit.
  • a sealing ring is further included between the end cover and the front case.
  • a second chamber is disposed between the end cover and the front case, water enters the second chamber from the water inlet, and the sealing ring is disposed between the end cover and the front case to ensure the sealing of the end cover and the front case, and prevent Water leaks from the joint between the end cap and the front shell.
  • the spray device further includes an elastic body, and the living A middle portion of the plug rod is provided with a boss, and the elastic body is sleeved on the piston rod and is engaged with the boss.
  • the elastomer is in sealing engagement with the inner wall of the front case.
  • the elastic body is sleeved on the piston rod, and the elastic body and the piston rod are installed in the first cavity body, which greatly reduces the volume of the cavity of the first cavity, and the gas is extruded from the air inlet into the first cavity, and the elastic body is extruded.
  • the elastic body is elastically deformed and cooperates with the inner wall of the front shell, which increases the sealing property of the first chamber and reduces the active volume of the gas in the first chamber, so that the atomization forming time of the spray device is greatly reduced, and the time is increased. Gas utilization rate.
  • the resetting device is a spring installed in the first chamber and provided with a compressive pre-tightening force, the spring is connected to the piston at one end and connected to the other end at the other end.
  • the bottom of the housing is a spring installed in the first chamber and provided with a compressive pre-tightening force, the spring is connected to the piston at one end and connected to the other end at the other end.
  • the present invention provides a mining machine comprising the spray device of any one of the above aspects.
  • the mining machine may be a roadheader, and the spray device may be provided on the roadhead cutting portion, the blade portion, and the conveyor.
  • the spray device provided by the utility model uses a gas to push the piston rod, so that the spray device has good spray atomization effect, large gas mist coverage, good dust reduction and cooling effect, is not easy to block, consumes small amount of water, and is installed and disassembled. Convenience. DRAWINGS
  • FIG. 1 is a cross-sectional view of a spray device in accordance with an embodiment of the present invention
  • FIG. 2 is a schematic view of the spray of the spray device of Figure 1.
  • FIG. 1 is a cross-sectional view of a spray device in accordance with an embodiment of the present invention.
  • FIG. 2 is a spray schematic view of the spray device of FIG.
  • the spray device of the present invention comprises a housing 2, a piston rod 3, a piston 5 and a resetting device, wherein: the housing 2 is provided with an air inlet 92, a water inlet 91, and an air outlet. 93 and the spray port 94, and the space enclosed by the casing 2 is divided into a first chamber 81 and a second chamber 82.
  • the air inlet 92 communicates with the air outlet 93 through the first chamber 81, and the water inlet 91 passes through
  • the second chamber 82 communicates with the spray port 94, and the gas entering from the air inlet 92 enters the second chamber 82 through the air outlet 93 and is mixed with the water entering from the water inlet 91, and then ejected from the spray port 94; the piston 5 and the shell
  • the inner wall of the body 2 is sealingly fitted and slidably mounted in the first chamber 81.
  • One end of the piston rod 3 is fixed to the piston 5 and the other end is engaged with the inner wall of the air outlet 93.
  • the gas push piston 5 drives the piston rod 3 to move, and the air outlet 93 is opened, when the air pressure in the first chamber 81 is less than a preset value.
  • the reset device drives the piston 5 to bring the piston rod 3 back to block the air outlet 93.
  • the piston rod when the gas pressure of the gas does not enter the first chamber from the air inlet or enters the first chamber from the air inlet is less than the pre-pressure of the reset device, the piston rod always blocks the air outlet, effectively preventing the gas from being effectively blocked.
  • the dust enters the first chamber from the air outlet to cause blockage of the air outlet; in another aspect, the utility model pushes the piston rod through the gas, and connects the air outlet to the air inlet, the gas It is sprayed from the air outlet and mixed with the water entering the second chamber from the water inlet, and then mixed to form a spray.
  • the spray is sprayed from the spray port, which greatly improves the spray effect and spray range of the spray device, and the reaction is more sensitive, and Since it is pressurized by air pressure, it does not need to have a high water pressure, so that the flow rate of water can be conveniently controlled, and the water consumption can be effectively reduced.
  • the end of the piston rod 3 is tapered, and the inner wall of the air outlet 93 is an inner tapered surface that engages the end of the piston rod 3.
  • the matching surface between the piston rod and the inner wall of the air outlet is a tapered surface, which reduces the contact area between the gas and the water, but increases the pressure of the gas, so that the atomization effect is better after the gas is ejected from the air outlet, and the spray coverage can be effectively improved. range.
  • the housing 2 includes an end cover 21, a front housing 22 and a rear housing 23, wherein: the end cover 21 is fixedly coupled to the front housing 22 and encloses a second chamber 82 with the front housing 22, the front housing 22 being fixedly coupled to The rear casing 23 and the rear casing 23 enclose a first chamber 81; the spray port 94 is disposed on the end cover 21, and the water inlet 91, the air inlet 92 and the air outlet 93 are disposed on the front casing 22.
  • the housing is divided into an end cover, a front cover and a rear cover to facilitate the installation of components in the housing, and the spray device is more convenient to disassemble and assemble.
  • the spraying device further comprises a set screw 1 and a nut 6, wherein: the bottom of the rear case 23 is provided with a mounting hole, the set screw 1 is installed in the mounting hole, and the screw of the set screw 1 extends into the first Inside the chamber 81; the piston 5 is provided with a through hole, and one end of the piston rod 3 connected to the piston 5 passes through the through hole in the piston 5 and is connected with the nut 6, and the nut 6 and the set screw 1 cooperate to limit the piston rod The maximum displacement of 3.
  • the gas enters the first chamber from the air inlet and pushes the piston rod.
  • the displacement of the air outlet reaches the maximum, and the displacement of the piston rod excessively affects the pressure of the gas, which is formed by the spray device spray.
  • the time is too long, which in turn affects the work efficiency; the excessive displacement of the piston rod will cause the failure of the reset device, which will cause the dust to enter the air outlet and block the air outlet.
  • the nut and the set screw can cooperate to prevent the above. The situation, Make the spray device more stable.
  • the end cap 21 is threadedly coupled to the front housing 22, and/or the front housing 22 and the rear housing 23 are threaded.
  • the end caps are threaded to the front and/or front and rear shells for greater efficiency in the assembly and disassembly of the spray unit.
  • the spray device further includes a sealing ring 12 mounted between the end cap 21 and the front housing 22.
  • a second chamber is disposed between the end cover and the front case, water enters the second chamber from the water inlet, and the sealing ring is disposed between the end cover and the front case to ensure the sealing of the end cover and the front case, and prevent Water leaks from the joint between the end cap and the front shell.
  • the spraying device further comprises an elastic body 4, and a central portion of the piston rod 3 is provided with a boss 31, and the elastic body 4 is sleeved on the piston rod 3 and is engaged with the boss 31.
  • the elastomer 4 is in sealing engagement with the inner wall of the front casing 22.
  • the elastic body is sleeved on the piston rod, and the elastic body and the piston rod are installed in the first cavity body, which greatly reduces the volume of the cavity of the first cavity, and the gas is extruded from the air inlet into the first cavity, and the elastic body is extruded.
  • the elastic body is elastically deformed and cooperates with the inner wall of the front shell, which increases the sealing property of the first chamber and reduces the active volume of the gas in the first chamber, so that the atomization forming time of the spray device is greatly reduced, and the time is increased. Gas utilization rate.
  • the resetting device can be realized by an elastic member, for example, an elastic member can be disposed on one side of the piston 5, and when the elastic member is on the same side as the piston rod 3, a pre-tensioning force of the tension is set, and when the elastic member is located at the piston 5
  • the compression preload is set on one side.
  • the resetting means is a spring 7, mounted in the first chamber 81 and provided with a compressive preload, the spring 7 being connected at one end to the piston 5 and at the other end to the bottom of the housing 2.
  • the present invention also provides a mining machine comprising at least one of the spray devices of any of the above aspects.
  • mining machinery can be a roadheader, at the roadhead cutting section,
  • the spray device can be provided on the blade portion and the conveyor.
  • the spray device provided by the utility model uses a gas to push the piston rod, so that the spray device has good spray atomization effect, large gas mist coverage, good dust reduction and cooling effect, is not easy to block, consumes small amount of water, and is installed and disassembled. Convenience.
  • the spray device provided by the utility model adopts gas to push the piston rod, so that the spray device has good spray atomization effect, large gas mist coverage, good dust reduction and cooling effect, is not easy to block, consumes small amount of water, and is convenient for installation and disassembly. Therefore, the utility model has industrial applicability.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • Nozzles (AREA)

Description

喷雾装置和矿用 w¾ 本申请要求于 2012 年 7 月 30 日提交中国专利局、 申请号为 201220375761.1、 实用新型名称为"喷雾装置和矿用机械 "的中国专利申请的 优先权， 其全部内容通过引用结合在本申请。 技术领域
本实用新型涉及喷雾技术领域， 具体而言， 涉及一种喷雾装置和一 种矿用机械。 背景技术
目前， 掘进机依靠内喷雾和外喷雾进行井下除尘和降温。 传统的喷 雾喷嘴利用水压和喷嘴结构产生喷雾效果， 需要用水将喷雾装置内部充 满才能够开始喷水， 耗水量大， 反应不够灵敏， 所以雾化效果不佳， 喷 雾系统降尘、驱散瓦斯效果均受到影响，严重危害了工人的健康和安全。
因此， 如何能够优化喷雾装置的喷雾效果， 降低耗水量， 是本领域 技术人员亟需解决的技术问题。 实用新型内容
本实用新型所要解决的技术问题在于， 提供一种新的喷雾装置， 能 够优化喷雾装置的喷雾效果， 降低耗水量。
有鉴于此， 本实用新型提供了一种喷雾装置， 包括壳体、 活塞杆、 活塞和复位装置， 其中： 所述壳体上设置有进气口、 进水口、 出气口和 喷雾口， 且所述壳体围成的空间内分为第一腔室和第二腔室， 所述进气 口通过所述第一腔室与所述出气口连通， 所述进水口通过所述第二腔室 与所述喷雾口连通， 从所述进气口进入的气体经所述出气口进入到所述 第二腔室与从所述进水口进入的水混合后从所述喷雾口喷出； 所述活塞 与所述壳体的内壁密封配合且可滑动地安装在所述第一腔室内， 所述活 塞杆一端与所述活塞固接、 另一端与所述出气口的内壁配合。
在该技术方案中， 当所述第一腔室内的气压大于预设值时气体推动 所述活塞带动所述活塞杆移动， 将所述出气口打开， 当所述第一腔室内 的气压小于预设值时， 所述复位装置驱动所述活塞带动所述活塞杆复位 从而封堵所述出气口。
一方面， 在气体未从进气口进入到第一腔室或者从进气口进入到第 一腔室的气体压力小于复位装置的预压力时， 活塞杆始终封堵出气口， 有效地防止了粉尘从出气口进入到第一腔室内造成出气口的堵塞； 另 ― 方面， 本实用新型通过气体推动活塞杆， 将出气口与进气口连通， 气体 从出气口喷出， 并与从进水口进入到第二腔室内的水混合， 混合后形成 喷雾， 喷雾从喷雾口喷出， 大大提升了喷雾装置的喷雾效果和喷雾范围， 反应更加灵敏， 而且由于通过气压加压， 所以不需要有很高的水压， 因 此可以方便地控制水的流量， 有效地减少水的消耗。
其中， 复位装置可以通过弹性元件实现， 例如可以在活塞的一侧设 置弹性元件， 当弹性元件与活塞杆位于同一侧时， 设置拉伸的预紧力， 当弹性元件位于活塞的另一侧时则设置压缩的预紧力。
在上述技术方案中， 优选地， 所述活塞杆的端部为锥形， 所述出气 口的内壁为与所述活塞杆的端部配合的内锥面。
活塞杆与出气口内壁配合面为锥形面，减小了气体与水的接触面积， 但提高了气体的压强， 使得气体从出气口喷出后雾化效果更好， 且可以 有效提高喷射覆盖范围。
在上述技术方案中， 优选地， 所述壳体包括端盖、 前壳和后壳， 其 中： 所述端盖固定连接在所述前壳上并与所述前壳围成所述第二腔室， 所述前壳固定连接在所述后壳上并与所述后壳围成所述第一腔室； 所述 喷雾口设置在所述端盖上， 所述进水口、 所述进气口和所述出气口均设 置在所述前壳上。
将壳体分为端盖、 前壳及后壳， 以达到方便安装壳体内的部件， 喷 雾装置拆装更加方便。
优选地， 所述喷雾装置还包括紧定螺钉和螺母， 其中： 所述后壳的 底部设置有安装孔， 所述紧定螺钉安装在所述安装孔内， 所述紧定螺钉 的螺杆伸入到所述第一腔室内； 所述活塞上设有通孔， 所述活塞杆与所 述活塞连接的一端穿过所述活塞上的通孔并与所述螺母连接， 所述螺母 和所述紧定螺钉相配合， 以限制所述活塞杆的最大位移。
气体从进气口进入到第一腔室并推动活塞杆， 活塞杆移动达到最大 位移后， 出气口的排量达到最大， 活塞杆的位移量过大会造成影响气体 的压强， 喷雾装置喷雾形成的时间过长， 进而影响工作效率； 活塞杆过 大的位移量会造成复位装置的失效， 进而造成粉尘进入到出气口将出气 口堵住， 通过螺母和紧定螺钉相配合可以很好地防止上述情况的发生， 使得喷雾装置更加稳定。
优选地， 所述端盖与所述前壳通过螺紋连接， 和 /或， 所述前壳与所 述后壳通过螺紋连接。
端盖与前壳和 /或前壳与后壳采用螺紋连接，使得喷雾装置装拆效率 更高。
优选地， 还包括密封圈， 安装在所述端盖与所述前壳之间。
端盖与前壳之间设置有第二腔室， 水从进水口进入到第二腔室， 将 密封圈设置在端盖与前壳之间， 保证了端盖与前壳的密封性， 防止水从 端盖与前壳的连接部泄露。
在上述技术方案中， 优选地， 所述喷雾装置还包括弹性体， 所述活 塞杆的中部设置有凸台， 所述弹性体套设在所述活塞杆上并卡接在所述 凸台上。
优选地， 所述弹性体与所述前壳的内壁密封配合。
弹性体套设在活塞杆上， 弹性体与活塞杆安装在第一腔体内， 大大 缩小了第一腔体空腔的体积， 气体从进气口进入到第一腔室内后， 挤压 弹性体， 弹性体弹性变形后与前壳内壁配合， 增加了第一腔室的密封性， 并且减小了气体在第一腔室内的活动体积， 使得喷雾装置雾化形成时间 大大减小， 并且提高了气体的利用率。
在上述任一技术方案中， 优选地， 所述复位装置为弹簧， 安装在所 述第一腔室内且设置有压缩的预紧力， 所述弹簧一端连接至所述活塞、 另一端连接至所述壳体的底部。
另一方面， 本实用新型还提供了一种矿用机械， 包括至少一个上述 技术方案中任一项的喷雾装置。 例如， 矿用机械可以为掘进机， 在掘进 机切割部、 铲板部、 运输机上均可设置所述喷雾装置。
综上所述， 本实用新型提供的喷雾装置采用气体推动活塞杆， 使得 喷雾装置的喷射雾化效果好、 气雾覆盖范围大、 降尘和冷却效果好、 不 易堵塞、 消耗水量小、 安装和拆卸方便。 附图说明
图 1是根据本实用新型实施例的喷雾装置的剖视图；
图 2是图 1中喷雾装置的喷雾示意图。
其中， 图 1和图 2中附图标记和部件之间的对应关系为：
1 紧定螺钉， 2 壳体， 21 端盖， 22 前壳， 23 后壳， 3 活塞杆，
31 凸台， 4 弹性体， 5 活塞， 6 螺母， 7 弹簧， 81 第一腔室，
82 第二腔室， 91 进水口， 92 进气口， 93 出气口， 94 喷雾口。 具体实施方式
为了能够更清楚地理解本实用新型的上述目的、 特征和优点， 下面 结合附图和具体实施方式对本实用新型进行进一步的详细描述。
在下面的描述中阐述了很多具体细节以便于充分理解本实用新型， 但是， 本实用新型还可以采用其他不同于在此描述的其他方式来实施， 因此， 本实用新型的保护范围并不受下面公开的具体实施例的限制。 需 要说明的是， 在不冲突的情况下， 本申请的实施例及实施例中的特征可 以相互组合。
图 1是根据本实用新型实施例的喷雾装置的剖视图； 图 2是图 1中 喷雾装置的喷雾示意图。
如图 1和图 2所示，本实用新型中的喷雾装置包括壳体 2、活塞杆 3、 活塞 5和复位装置， 其中： 壳体 2上设置有进气口 92、 进水口 91、 出气 口 93和喷雾口 94 , 且壳体 2围成的空间内分为第一腔室 81和第二腔室 82 , 进气口 92通过第一腔室 81与出气口 93连通， 进水口 91通过第二 腔室 82与喷雾口 94连通， 从进气口 92进入的气体经出气口 93进入到 第二腔室 82与从进水口 91 进入的水混合后从喷雾口 94喷出； 活塞 5 与壳体 2 的内壁密封配合且可滑动地安装在第一腔室 81 内， 活塞杆 3 一端与活塞 5固接、 另一端与出气口 93的内壁配合。
在该技术方案中，当第一腔室 81 内的气压大于预设值时气体推动活 塞 5带动活塞杆 3移动， 将出气口 93打开， 当第一腔室 81 内的气压小 于预设值时，复位装置驱动活塞 5带动活塞杆 3复位从而封堵出气口 93。
一方面， 在气体未从进气口进入到第一腔室或者从进气口进入到第 一腔室的气体压力小于复位装置的预压力时， 活塞杆始终封堵出气口， 有效地防止了粉尘从出气口进入到第一腔室内造成出气口的堵塞； 另 ― 方面， 本实用新型通过气体推动活塞杆， 将出气口与进气口连通， 气体 从出气口喷出， 并与从进水口进入到第二腔室内的水混合， 混合后形成 喷雾， 喷雾从喷雾口喷出， 大大提升了喷雾装置的喷雾效果和喷雾范围， 反应更加灵敏， 而且由于通过气压加压， 所以不需要有很高的水压， 因 此可以方便地控制水的流量， 有效地减少水的消耗。
优选地， 活塞杆 3 的端部为锥形， 出气口 93 的内壁为与活塞杆 3 的端部配合的内锥面。
活塞杆与出气口内壁配合面为锥形面，减小了气体与水的接触面积， 但提高了气体的压强， 使得气体从出气口喷出后雾化效果更好， 且可以 有效提高喷射覆盖范围。
优选地， 壳体 2 包括端盖 21、 前壳 22和后壳 23 , 其中： 端盖 21 固定连接在前壳 22上并与前壳 22围成第二腔室 82 , 前壳 22固定连接 在后壳 23上并与后壳 23围成第一腔室 81 ;喷雾口 94设置在端盖 21上， 进水口 91、 进气口 92和出气口 93均设置在前壳 22上。
将壳体分为端盖、 前壳及后壳， 以达到方便安装壳体内的部件， 喷 雾装置拆装更加方便。
优选地， 所述喷雾装置还包括紧定螺钉 1和螺母 6 , 其中： 后壳 23 的底部设置有安装孔， 紧定螺钉 1安装在安装孔内， 紧定螺钉 1的螺杆 伸入到第一腔室 81 内； 活塞 5上设有通孔， 活塞杆 3与活塞 5连接的一 端穿过活塞 5上的通孔并与螺母 6连接， 螺母 6和紧定螺钉 1相配合， 以限制活塞杆 3的最大位移。
气体从进气口进入到第一腔室并推动活塞杆， 活塞杆移动达到最大 位移后， 出气口的排量达到最大， 活塞杆的位移量过大会造成影响气体 的压强， 喷雾装置喷雾形成的时间过长， 进而影响工作效率； 活塞杆过 大的位移量会造成复位装置的失效， 进而造成粉尘进入到出气口将出气 口堵住， 通过螺母和紧定螺钉相配合可以很好地防止上述情况的发生， 使得喷雾装置更加稳定。
优选地， 端盖 21与前壳 22通过螺紋连接， 和 /或， 前壳 22与后壳 23通过螺紋连接。
端盖与前壳和 /或前壳与后壳采用螺紋连接，使得喷雾装置装拆效率 更高。
优选地， 所述喷雾装置还包括密封圈 12 , 安装在端盖 21与前壳 22 之间。
端盖与前壳之间设置有第二腔室， 水从进水口进入到第二腔室， 将 密封圈设置在端盖与前壳之间， 保证了端盖与前壳的密封性， 防止水从 端盖与前壳的连接部分泄露。
优选地， 所述喷雾装置还包括弹性体 4, 活塞杆 3 的中部设置有凸 台 31 , 弹性体 4套设在活塞杆 3上并卡接在凸台 31上。
优选地， 弹性体 4与前壳 22的内壁密封配合。
弹性体套设在活塞杆上， 弹性体与活塞杆安装在第一腔体内， 大大 缩小了第一腔体空腔的体积， 气体从进气口进入到第一腔室内后， 挤压 弹性体， 弹性体弹性变形后与前壳内壁配合， 增加了第一腔室的密封性， 并且减小了气体在第一腔室内的活动体积， 使得喷雾装置雾化形成时间 大大减小， 并且提高了气体的利用率。
其中， 复位装置可以通过弹性元件实现， 例如可以在活塞 5的一侧 设置弹性元件， 当弹性元件与活塞杆 3位于同一侧时， 设置拉伸的预紧 力， 当弹性元件位于活塞 5的另一侧时则设置压缩的预紧力。 例如， 复 位装置为弹簧 7 , 安装在第一腔室 81 内且设置有压缩的预紧力， 弹簧 7 一端连接至活塞 5、 另一端连接至壳体 2的底部。
本实用新型还提供了一种矿用机械， 包括至少一个上述技术方案中 任一项的喷雾装置。 例如， 矿用机械可以为掘进机， 在掘进机切割部、 铲板部、 运输机上均可设置所述喷雾装置。
综上所述， 本实用新型提供的喷雾装置采用气体推动活塞杆， 使得 喷雾装置的喷射雾化效果好、 气雾覆盖范围大、 降尘和冷却效果好、 不 易堵塞、 消耗水量小、 安装和拆卸方便。
以上所述仅为本实用新型的优选实施例而已， 并不用于限制本实用 新型， 对于本领域的技术人员来说， 本实用新型可以有各种更改和变化。 凡在本实用新型的精神和原则之内， 所作的任何修改、 等同替换、 改进 等， 均应包含在本实用新型的保护范围之内。 工业实用性
本实用新型提供的喷雾装置， 采用气体推动活塞杆， 使得喷雾装置的 喷射雾化效果好、 气雾覆盖范围大、 降尘和冷却效果好、 不易堵塞、 消 耗水量小、 安装和拆卸方便。 因此， 本实用新型具有工业实用性。

Claims

权利要求书
1. 一种喷雾装置， 其特征在于， 包括壳体（2) 、 活塞杆（3) 、 活 塞 （5) 和复位装置， 其中：
所述壳体上设置有进气口 （92) 、 进水口 （91 ) 、 出气口 （93 ) 和 喷雾口 （94) , 且所述壳体（2) 围成的空间内分为第一腔室 （81 )和第 二腔室 （82) , 所述进气口 （92) 通过所述第一腔室 （81 ) 与所述出气 口 （93 ) 连通， 所述进水口 （91 ) 通过所述第二腔室 （82) 与所述喷雾 口 （94) 连通， 从所述进气口 （92) 进入的气体经所述出气口 （93 ) 进 入到所述第二腔室 （82) 与从所述进水口 （91 ) 进入的水混合后从所述 喷雾口 （94) 喷出；
所述活塞 （5) 与所述壳体 （2) 的内壁密封配合且可滑动地安装在 所述第一腔室 （81 ) 内， 所述活塞杆 （3 ) —端与所述活塞 （5) 固接、 另一端与所述出气口 （93 ) 的内壁配合。
2. 根据权利要求 1所述的喷雾装置， 其特征在于， 所述活塞杆（3) 的端部为锥形， 所述出气口 （93)的内壁为与所述活塞杆（3)的端部配 合的内雄面。
3. 根据权利要求 1 所述的喷雾装置， 其特征在于， 所述壳体 （2) 包括端盖 （21 ) 、 前壳 （22) 和后壳 （23) , 其中：
所述端盖 （21 ) 固定连接在所述前壳 （22) 上并与所述前壳 （22) 围成所述第二腔室 （82) , 所述前壳 （22) 固定连接在所述后壳 （23 ) 上并与所述后壳 （23 ) 围成所述第一腔室 （81 ) ；
所述喷雾口 （94)设置在所述端盖 （21 )上， 所述进水口 （91) 、 所述进气口 （92) 和所述出气口 （93 ) 均设置在所述前壳 （22) 上。
4. 根据权利要求 3所述的喷雾装置， 其特征在于， 还包括紧定螺钉 ( 1 ) 和螺母（6) , 其中： 所述后壳（23)的底部设置有安装孔， 所述紧定螺钉（ 1 )安装在所 述安装孔内， 所述紧定螺钉（ 1 ) 的螺杆伸入到所述第一腔室 （81 ) 内； 所述活塞 ( 5 )上设有通孔， 所述活塞杆 ( 3 )与所述活塞 ( 5 )连接 的一端穿过所述活塞 （5) 上的通孔并与所述螺母 （6) 连接， 所述螺母 ( 6 )和所述紧定螺钉 ( 1 )相配合， 以限制所述活塞杆 ( 3 )的最大位移。
5. 根据权利要求 3所述的喷雾装置， 其特征在于， 所述端盖 （21 ) 与所述前壳（22)通过螺紋连接，和 /或， 所述前壳（22)与所述后壳（23) 通过螺紋连接。
6. 根据权利要求 5 所述的喷雾装置， 其特征在于， 还包括密封圈 ( 12) , 安装在所述端盖 （21 ) 与所述前壳 （22)之间。
7. 根据权利要求 1所述的喷雾装置，其特征在于，还包括弹性体（4), 所述活塞杆 （3 ) 的中部设置有凸台 （31 ) ， 所述弹性体 （4) 套设在所 述活塞杆 （3) 上并卡接在所述凸台 （31 ) 上。
8. 根据权利要求 7所述的喷雾装置， 其特征在于， 所述弹性体（4) 与所述前壳 （22) 的内壁密封配合。
9. 根据权利要求 1至 8中任一项所述的喷雾装置， 其特征在于， 所 述复位装置为弹簧（7) ， 安装在所述第一腔室（81 ) 内且设置有压缩的 预紧力， 所述弹簧 （7) —端连接至所述活塞 （5) 、 另一端连接至所述 壳体（2) 的底部。
10. 一种矿用机械， 其特征在于， 包括至少一个如权利要求 1 至 9 中任一项所述的喷雾装置。
PCT/CN2012/085807 2012-07-30 2012-12-04 喷雾装置和矿用机械 Ceased WO2014019311A1 (zh)

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CN2875606Y (zh) * 2005-12-13 2007-03-07 贵阳铝镁设计研究院 一种喷嘴装置
CN201280947Y (zh) * 2008-11-05 2009-07-29 邹城兖矿泰德工贸有限公司 风水喷雾装置

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CN105863719A (zh) * 2016-04-27 2016-08-17 太原理工大学 一种螺旋式雾化喷射降尘装置
CN105863719B (zh) * 2016-04-27 2017-10-27 太原理工大学 一种螺旋式雾化喷射降尘装置
DE202016105572U1 (de) 2016-10-06 2018-01-09 Stefan Widhalm Vorrichtung zum Binden von Staub
DE202016105570U1 (de) 2016-10-06 2018-01-09 Stefan Widhalm Vorrichtung zum Binden von Staub
DE202016105569U1 (de) 2016-10-06 2018-01-09 Stefan Widhalm Vorrichtung zum Binden von Staub
US11285501B2 (en) 2016-10-06 2022-03-29 Stefan Widhalm Device and method for binding dust
EP4019154A1 (de) 2016-10-06 2022-06-29 Stefan Widhalm Vorrichtung und verfahren zum binden von staub
CN116255187A (zh) * 2021-01-22 2023-06-13 湖南科技大学 应用于组合式掘进机外喷雾装置的防漏机构

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