WO2018201827A1 - 一种滚动转子式压缩机 - Google Patents

一种滚动转子式压缩机 Download PDF

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Publication number
WO2018201827A1
WO2018201827A1 PCT/CN2018/080815 CN2018080815W WO2018201827A1 WO 2018201827 A1 WO2018201827 A1 WO 2018201827A1 CN 2018080815 W CN2018080815 W CN 2018080815W WO 2018201827 A1 WO2018201827 A1 WO 2018201827A1
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Prior art keywords
crankshaft
oil hole
support portion
upper support
type compressor
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PCT/CN2018/080815
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English (en)
French (fr)
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李海滨
周忆
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上海海立电器有限公司
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Publication of WO2018201827A1 publication Critical patent/WO2018201827A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
    • F04C29/02—Lubrication; Lubricant separation

Definitions

  • the utility model relates to the field of compressors, in particular to a rolling rotor type compressor with an upper support structure.
  • an upper support structure is usually provided in the compressor casing, and the upper end of the crankshaft is provided. Fixed.
  • crankshaft oil hole in the prior art generally adopts the following two design schemes:
  • a straight oil hole 31 extending in the axial direction of the crankshaft 3 is disposed in the crankshaft 3, and an oil plug 311 is mounted on an end of the straight oil hole 31 far from the cylinder.
  • the straight oil hole 31 is a through hole penetrating the entire crankshaft 3;
  • crankshaft 3 is provided with a straight oil hole 32 and a horizontal oil hole 33 extending in the axial direction of the crankshaft 3 to the crankshaft 3.
  • the horizontal oil hole 33 and the straight oil hole 32 are vertically disposed, and the horizontal The open end of the oil hole 33 is opened between the upper cylinder head 6 of the cylinder 2 and the rotor 7; that is, the straight oil hole 32 does not extend through the entire crankshaft 3 but extends to the vicinity of the rotor 7.
  • the upper support portion 4 can function to fix the upper end of the crankshaft 3, when the crankshaft 3 rotates, the corresponding portion of the outer surface of the crankshaft 3 has contact friction with the inner surface of the upper support portion 4, and if the friction is excessive, the upper support portion 4 is caused.
  • the relative loss between the crankshaft 3 and the crankshaft 3 is severe, reducing the service life of the device.
  • the top of the crankshaft 3 of the first scheme has oil flowing out, the oil flowing out from the top of the crankshaft 3 cannot be effectively lubricated to the contact surface of the upper support portion 4 and the crankshaft 3 during actual use;
  • the second intermediate oil hole 33 is opened between the upper cylinder head 6 and the rotor 7, and the oil flowing out is mainly for lubricating between the contact faces of the upper cylinder head 6 and the rotor 7, but the upper support portion 4 and the crankshaft 3 cannot be realized. Effective lubrication of the contact surfaces.
  • those skilled in the art are directed to developing a rolling rotor compressor that can achieve effective lubrication between the upper support and the crankshaft.
  • the object of the present invention is to provide a rolling rotor type compressor capable of lubricating the upper support portion and the crankshaft fitting portion, thereby reducing the wear of the contact surface and improving the rolling rotor type compressor. Reliability to solve the problems in the above background art.
  • the utility model provides a rolling rotor type compressor, which comprises a casing, a compression assembly and a supporting assembly; wherein the compression assembly comprises a crankshaft and a cylinder; and the crankshaft is provided with a first oil extending along the axial direction of the crankshaft a hole; the support assembly includes an upper support portion; the upper support portion is coaxially disposed with the crankshaft and fixed by a clearance fit; the crankshaft is further provided with a second oil hole; the second oil hole is connected The first oil hole and an outer surface of the first portion of the crankshaft that cooperates with the upper support portion.
  • first oil hole of the present invention extends to a first portion of the crankshaft that mates with the upper support portion.
  • the second oil hole of the present invention is a straight oil hole.
  • the axis of the second oil hole of the present invention is perpendicular to the axis of the crankshaft.
  • the second oil hole of the present invention is a spiral hole.
  • the rolling rotor type compressor of the present invention further includes a motor assembly including a fixed rotor electric motor, the stator of which is welded and fixed to the motor housing, and the rotor is sleeved outside the crankshaft.
  • the support assembly of the present invention further includes a lower support portion, and a lower end of the crankshaft passes through the rotor and is supported by the lower support portion.
  • the compression assembly of the present invention further includes a piston.
  • the rolling rotor type compressor provided by the utility model has the following beneficial effects: the second oil hole of the first part of the outer surface of the crankshaft and the upper support portion can be matched by the oil outlet.
  • the support portion and the crankshaft fitting portion are lubricated to reduce the wear of the crankshaft and improve the reliability of the rolling rotor compressor.
  • FIG. 1 is a schematic structural view of a rolling rotor type compressor in which a crankshaft is provided with a through-type straight oil hole in the prior art;
  • FIG. 2 is a schematic structural view of a crankshaft provided with a through-type straight oil hole shown in FIG. 1;
  • FIG. 3 is a schematic structural view of a rolling rotor type compressor in which a crankshaft is provided with a horizontal oil hole in the prior art;
  • Figure 4 is a schematic view showing the structure of the crankshaft provided with the oil hole shown in Figure 3;
  • Figure 5 is a schematic structural view of a rolling rotor type compressor according to an embodiment of the present invention.
  • Fig. 6 is a schematic structural view of a crankshaft of the rolling rotor type compressor shown in Fig. 5.
  • a rolling rotor type compressor includes a casing 1 , an upper casing cover, a lower casing cover, and a motor assembly fixed inside the casing 1 . , compression components and support components.
  • the motor assembly comprises an electric motor of a fixed rotor, the stator of which is welded and fixed to the motor housing, the rotor is sleeved outside the crankshaft, and the position of the rotor is limited to the inside of the stator through the fixing device of the crankshaft, and can be rotated by the stator; the motor assembly
  • the power can be selected according to the difference of displacement or frequency conversion performance, and the type of crankshaft is determined accordingly.
  • the compression assembly includes a cylinder 2, a crankshaft 3 and a piston 5.
  • the crankshaft 3 is a rod member that passes through the rotor/cylinder of the motor at a time.
  • the cylinder is internally provided with an eccentric portion, and the eccentric portion is connected to the piston 5.
  • the compressor crankshaft is fixed by double support.
  • the support assembly includes an upper support portion 4 and a lower support portion.
  • the upper end of the crankshaft 3 passes through the rotor and is supported by the upper support portion.
  • One end of the crankshaft passing through the rotor is the same as the upper support portion 4.
  • the shaft is disposed and the clearance fits, and the lower end of the crankshaft 3 also passes through the rotor and is supported by the lower support portion.
  • a first oil hole 34 extending in the axial direction of the crankshaft 3 is disposed in the crankshaft 3, and a second oil hole 35 is further disposed in the crankshaft 3.
  • the second oil hole 35 communicates with the first oil hole 34 and the upper and upper support portions 4 of the crankshaft 3.
  • the outer surface of the first portion 36 of the mating portion, the second oil hole 35 forms an oil port on the outer surface of the first portion 36 of the crankshaft 3 that cooperates with the upper support portion 4, and the lubricating oil flowing out from the oil outlet port can be opposite to the upper support portion 4.
  • the first portion 36 which is a mating portion with the crankshaft 3, is lubricated, thereby reducing the wear of the crankshaft 3 and improving the reliability of the rolling rotor compressor.
  • the first oil hole 34 extends to the first portion 36 and communicates with the second oil hole 35, wherein the axis of the second oil hole 35 is perpendicular to the axis of the crankshaft 3.
  • a two-cylinder rolling rotor type compressor is taken as an example, but the present invention is not limited to this type of compressor.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Applications Or Details Of Rotary Compressors (AREA)

Abstract

一种滚动转子式压缩机，包括壳体（1）、压缩组件和支撑组件，其中压缩组件包括曲轴（3）、气缸（2）与活塞（5），曲轴（3）内设置有沿曲轴（3）轴向延伸的第一油孔（34），支撑组件包括有用于固定曲轴（3）的上支撑部（4），曲轴（3）内还设置有第二油孔（35），第二油孔（35）连通第一油孔（34）以及曲轴（3）上与上支撑部（4）配合的第一部分（36）外表面。该滚动转子式压缩机设置位于上支撑部（4）与曲轴（3）配合部分的横油孔，能够对上支撑部（4）与曲轴（3）配合部分进行润滑，从而减小曲轴（3）相应部位的磨损，提高了滚动转子式压缩机的可靠性。

Description

一种滚动转子式压缩机 技术领域
本实用新型涉及压缩机领域，具体涉及一种带有上支撑结构的滚动转子式压缩机。
背景技术
随着压缩机应用领域的拓展，对于大功率压缩机的运行可靠性的要求越来越高，为了提高此类压缩机的稳定性，通常在压缩机壳体内设置上支撑结构，对曲轴的上端加以固定。
对于设置有上支撑结构的滚动转子式压缩机，现有技术中曲轴油孔通常采用以下两种设计方案：
(1)如图1、图2所示，曲轴3内设置沿曲轴3轴向延伸的直油孔31，且该直油孔31上离气缸较远的一端安装有油塞311，在这种设计方案中，该直油孔31为贯穿整个曲轴3的通孔；
(2)如图3、图4所示，曲轴3内设置沿曲轴3轴向延伸到曲轴3的的直油孔32与横油孔33，横油孔33与直油孔32垂直设置，横油孔33开口端开设在气缸2的上缸盖6与转子7之间；也即，该直油孔32并未贯穿整个曲轴3，而是延伸到转子7附近。
由于上支撑部4能起到对曲轴3的上端加以固定的作用，当曲轴3旋转时，曲轴3外表面相应部位与上支撑部4内表面存在接触摩擦，若摩擦过大会造成上支撑部4与曲轴3之间的相对损耗严重，降低设备的使用寿命。
基于上述两种方案，其中，方案一的曲轴3顶部虽有油液流出，但在实际使用过程中曲轴3顶部的流出油液无法实现对上支撑部4与曲轴3接触表面的有效润滑；方案二中横油孔33开设在上缸盖6与转子7之间，流出油液主要针对上缸盖6与转子7的接触面之间进行润滑，但无法实现对上支撑部4与曲轴3的接触面的有效润滑。现有技术中的以上两种方案，对于上支撑部4与曲轴3之间的接触面较难实现润滑，不能有效地减小二者之间的摩擦，容易造成上支撑部4与曲轴3的接触面磨损相对较为严重。
因此，本领域技术人员致力于研发一种可实现上支撑部与曲轴之间有效润滑的滚动转子式压缩机。
发明内容
鉴于现有技术中存在的问题，本实用新型的目的是提供一种滚动转子式压缩机，能够对上支撑部与曲轴配合部分进行润滑，从而减小接触面的磨损，提高滚动转子式压缩机的可靠性，以解决上述背景技术中存在的问题。
本实用新型提供一种滚动转子式压缩机，其包括壳体、压缩组件和支承组件；其中所述压缩组件包括曲轴和气缸；所述曲轴上设置有沿所述曲轴轴向延伸的第一油孔；所诉支承组件包括上支撑部；所述上支撑部与所述曲轴同轴设置且通过间隙配合的方式固定；所述曲轴上还设置有第二油孔；所述第二油孔连通所述第一油孔和所述曲轴上与所述上支撑部配合的第一部分的外表面。
进一步地，本实用新型的所述第一油孔延伸到所述曲轴上与所述上支撑部配合的第一部分。
进一步地，本实用新型的所述第二油孔为直油孔。
进一步地，本实用新型的所述第二油孔的轴线垂直于所述曲轴的轴线。
进一步地，本实用新型的所述第二油孔为螺旋形孔。
进一步地，本实用新型的滚动转子式压缩机还包括电机组件，所述电机组件包括定转子的电动马达，其定子同电机壳体焊接固定，其转子套于所述曲轴外部。
进一步的，本实用新型的所述支承组件还包括下支撑部，所述曲轴的下端穿出转子，通过所述下支撑部支承。
进一步的，本实用新型的所述压缩组件还包括活塞。
与现有技术相比，本实用新型提供的滚动转子式压缩机，具有以下有益效果：通过设置出油口位于曲轴上与上支撑部配合的第一部分外表面的第二油孔，能够对上支撑部与曲轴配合部分进行润滑，从而减小曲轴的磨损，提高了滚动转子式压缩机的可靠性。
附图说明
图1是现有技术中曲轴设置贯通型直油孔的滚动转子式压缩机的结构示意图；
图2是图1所示的设置贯通型直油孔的曲轴的结构示意图；
图3是现有技术中曲轴设置横油孔的滚动转子式压缩机的结构示意图；
图4是图3所示的设置横油孔的曲轴的结构示意图；
图5是本实用新型的一个实施例的滚动转子式压缩机的结构示意图；
图6是图5所示的滚动转子式压缩机的曲轴的结构示意图。
具体实施方式
下面详细描述本发明的实施例，所述实施例的示例在附图中示出，其中自始至终相同或类似的标号表示相同或类似的元件或具有相同或类似功能的元件。下面通过参考附图描述的实施例是示例性的，旨在用于解释本发明，而不能理解为对本发明的限 制。
在本发明的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。
如图5、图6所示，本实用新型的一个实施例的滚动转子式压缩机，包括位于机身外部的壳体1、上壳盖、下壳盖、固定在壳体1内部的电机组件，压缩组件和支承组件。
其中电机组件包括定转子的电动马达，其定子同电机壳体焊接固定，其转子套于曲轴外部，并通过曲轴的固定装置将其位置限定在定子内部，可通过定子驱动旋转；电机组件的功率可根据排量或变频性能的不同实际选择，并相应地决定了曲轴的种类。
其中压缩组件包括气缸2、曲轴3与活塞5，曲轴3为一根一次穿过电机转子/气缸的杆状件，气缸内部设置有偏心部，该偏心部部位与活塞5连接。
压缩机曲轴采用双支撑方式固定，其中支承组件包括上支撑部4和下支撑部，曲轴3上端穿出转子，通过上支撑部予以支承，曲轴穿出所述转子的一端与上支撑部4同轴设置且间隙配合，曲轴3下端同样穿出转子，通过下支撑部支承。
曲轴3内设置有沿曲轴3轴向延伸的第一油孔34，曲轴3内还设置有第二油孔35，第二油孔35连通第一油孔34以及曲轴3上与上支撑部4配合的第一部分36的外表面，第二油孔35在曲轴3上与上支撑部4配合的第一部分36的外表面形成出油口，从出油口流出的润滑油能够对上支撑部4与曲轴3配合部分即第一部分36进行润滑，从而减小曲轴3的磨损，提高了滚动转子式压缩机的可靠性。
本实施例中，第一油孔34延伸到第一部分36，与第二油孔35连通，其中第二油孔35的轴线垂直于曲轴3的轴线。
在本实施例中，以双缸滚动转子式压缩机为例，然而本实用新型不局限于该类型的压缩机。
以上详细描述了本实用新型的较佳具体实施例。应当理解，本领域的普通技术人员无需创造性劳动就可以根据本实用新型的构思做出诸多修改和变化。因此，凡本技术领域中技术人员依本实用新型的构思在现有技术的基础上通过逻辑分析、推理或者有限的实验可以得到的技术方案，皆应在由权利要求书所确定的保护范围内。

Claims (8)

  1. 一种滚动转子式压缩机，包括壳体、压缩组件和支承组件，其中所述压缩组件包括曲轴和气缸，所述曲轴上设置有沿所述曲轴轴向延伸的第一油孔，所述支承组件包括上支撑部，所述上支撑部与所述曲轴同轴设置且通过间隙配合的方式固定，其特征在于：所述曲轴上还设置有第二油孔，所述第二油孔连通所述第一油孔和所述曲轴上与所述上支撑部配合的第一部分的外表面。
  2. 如权利要求1所述的滚动转子式压缩机，其特征在于，所述第一油孔延伸到所述曲轴上与所述上支撑部配合的第一部分。
  3. 如权利要求1所述的滚动转子式压缩机，其特征在于，所述第二油孔为直油孔。
  4. 如权利要求3所述的滚动转子式压缩机，其特征在于，所述第二油孔的轴线垂直于所述曲轴的轴线。
  5. 如权利要求1所述的滚动转子式压缩机，其特征在于，所述第二油孔为螺旋形孔。
  6. 如权利要求1所述的滚动转子式压缩机，其特征在于，还包括电机组件；所述电机组件包括定转子的电动马达，其定子同电机壳体焊接固定，其转子套于所述曲轴外部。
  7. 如权利要求6所述的滚动转子式压缩机，其特征在于，所述支承组件还包括下支撑部；所述曲轴的下端穿出转子，通过所诉下支撑部支承。
  8. 如权利要求1所述的滚动转子式压缩机，其特征在于，所述压缩组件还包括活塞。
PCT/CN2018/080815 2017-05-03 2018-03-28 一种滚动转子式压缩机 WO2018201827A1 (zh)

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Publication number Priority date Publication date Assignee Title
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202597108U (zh) * 2012-04-27 2012-12-12 比亚迪股份有限公司 一种涡旋式压缩机
CN103573631A (zh) * 2013-11-05 2014-02-12 广东美芝制冷设备有限公司 高背压旋转式压缩机
CN103603804A (zh) * 2013-11-13 2014-02-26 安徽美芝精密制造有限公司 旋转式压缩机
CN104481877A (zh) * 2014-12-09 2015-04-01 广东美芝制冷设备有限公司 低背压旋转式压缩机
CN107131129A (zh) * 2017-06-30 2017-09-05 广东美芝制冷设备有限公司 压缩机的供油系统和旋转式压缩机
CN206801883U (zh) * 2017-05-03 2017-12-26 上海日立电器有限公司 一种滚动转子式压缩机

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202597108U (zh) * 2012-04-27 2012-12-12 比亚迪股份有限公司 一种涡旋式压缩机
CN103573631A (zh) * 2013-11-05 2014-02-12 广东美芝制冷设备有限公司 高背压旋转式压缩机
CN103603804A (zh) * 2013-11-13 2014-02-26 安徽美芝精密制造有限公司 旋转式压缩机
CN104481877A (zh) * 2014-12-09 2015-04-01 广东美芝制冷设备有限公司 低背压旋转式压缩机
CN206801883U (zh) * 2017-05-03 2017-12-26 上海日立电器有限公司 一种滚动转子式压缩机
CN107131129A (zh) * 2017-06-30 2017-09-05 广东美芝制冷设备有限公司 压缩机的供油系统和旋转式压缩机

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