WO2018018871A1 - 一种压缩机泵体及压缩机 - Google Patents

一种压缩机泵体及压缩机 Download PDF

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Publication number
WO2018018871A1
WO2018018871A1 PCT/CN2017/073152 CN2017073152W WO2018018871A1 WO 2018018871 A1 WO2018018871 A1 WO 2018018871A1 CN 2017073152 W CN2017073152 W CN 2017073152W WO 2018018871 A1 WO2018018871 A1 WO 2018018871A1
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Prior art keywords
rotating shaft
shaft
compressor
groove
piston
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PCT/CN2017/073152
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English (en)
French (fr)
Inventor
黄辉
胡余生
张金圈
张荣婷
杜忠诚
杨森
孔令超
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珠海格力节能环保制冷技术研究中心有限公司
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Publication of WO2018018871A1 publication Critical patent/WO2018018871A1/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
    • 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
    • F04C2240/00—Components
    • F04C2240/80—Other components

Definitions

  • the present invention relates to the field of compressor technology, and in particular to a compressor pump body and a compressor.
  • refrigeration compressors mainly include piston compressors, rotor compressors, scroll compressors, etc., which are suitable for different cooling applications.
  • piston compressors rotor compressors
  • scroll compressors etc.
  • the main structure of the piston compressor and the rotor compressor is combined to obtain a rotary cylinder piston compressor, which opens up a new world for the compressor refrigeration industry.
  • the piston and the cylinder are driven to rotate by the rotating shaft.
  • the long axis of the rotating shaft is connected with the rotor of the motor by hot sleeve or cold pressing; since the rotating shaft-motor rotor assembly belongs to the moving part and needs other parts to support, the pump body assembly can be stably and reliably operated.
  • the present invention provides a compressor pump body and a compressor, the main purpose of which is to axially support the rotating shaft and prevent axial rotation of the rotating shaft, so that the compressor pump body and the compressor can operate stably and reliably.
  • the present invention mainly provides the following technical solutions:
  • an embodiment of the invention provides a compressor pump body, the compressor pump body comprising:
  • first flange a first flange, the first flange being connected to an upper end of the cylinder liner
  • the rotating shaft is coupled to the piston for driving the piston and the cylinder to rotate;
  • a rotating shaft support structure for axially supporting the rotating shaft to prevent the rotating shaft from axially swaying.
  • the rotating shaft includes a first shaft and a second shaft; wherein an upper end of the second shaft is coupled to a lower end of the first shaft; a center hole is defined in the piston, and the second shaft is The central bore of the piston is adapted to drive the piston and cylinder to rotate.
  • the lower end surface of the first shaft includes a first portion and a second portion; wherein the first portion is a connection portion connected to the second shaft, and the second portion is engaged on the piston
  • the shaft support structure includes a first shaft support structure that cooperates with the lower end of the second shaft, the first shaft support structure is the second portion, such that the piston axially supports Said the shaft.
  • the rotating shaft support structure comprises a second rotating shaft supporting structure, and the second rotating shaft supporting structure is disposed on the second flange such that the second flange axially supports the rotating shaft.
  • the second rotating shaft support structure is a groove disposed on the second flange; a lower end of the second shaft is disposed in the groove, and the rotating shaft is defined by the second flange
  • the groove bottom of the upper groove is axially supported.
  • the groove bottom of the groove is provided with an oil inlet hole; the groove wall of the groove is provided There is an oil guiding groove.
  • the rotating shaft support structure comprises a third rotating shaft supporting structure; wherein the third rotating shaft supporting structure is a supporting plate connected to a lower end of the second flange;
  • the second flange is provided with a through hole for passing the lower end of the second shaft to support the lower end surface of the second shaft on the support plate, or
  • the second flange is provided with a through hole for passing the lower end of the second shaft, the support plate is provided with a support plate groove; the lower end of the second shaft is disposed at the support plate groove And the rotating shaft is axially supported by the groove bottom of the support plate groove.
  • the support plate is provided with an oil guiding hole and an oil guiding groove; wherein the oil guiding groove is in communication with the oil guiding hole.
  • the inside of the rotating shaft is provided with an axial oil hole extending through the entire rotating shaft;
  • the second shaft is provided with a piston supporting surface that cooperates with a central hole of the piston, wherein the piston supporting surface is opened
  • An oil groove wherein the oil groove is provided with an oil outlet hole; wherein the oil discharge hole is in communication with the axial oil hole.
  • an embodiment of the present invention provides a compressor comprising the compressor pump body of any of the above.
  • the compressor body and the compressor of the present invention have at least the following
  • the compressor pump body and the compressor provided by the embodiments of the present invention not only make the shaft of the compressor pump body axially supported by providing the rotating shaft support structure, but also can carry the motor connected with the upper end of the rotating shaft through the hot sleeve or the cold pressure.
  • the rotor and other components prevent the shaft from axially swaying, ensuring stable and reliable operation of the shaft and improving the operating stability of the compressor body and compressor.
  • the compressor pump body and the compressor provided by the embodiments of the present invention provide a first rotating shaft support structure on a lower end surface of a long axis (ie, a first shaft) of the rotating shaft, so that the piston axially supports the rotating shaft and is carried by the piston.
  • the weight of the rotating shaft and the rotor of the motor connected to the upper end of the rotating shaft through hot jacket or cold pressing ensures the stable and reliable operation of the rotating shaft.
  • the rotating shaft and the piston are in small area contact, which reduces the frictional power consumption of the compressor pump body and the compressor, and improves the efficiency of the compressor.
  • the compressor pump body and the compressor provided by the embodiments of the present invention are limited by providing a second axial support structure (ie, a groove adapted to the lower end of the short axis (second axis)) on the second flange.
  • the weight of the rotating shaft, and the weight of the motor rotor and other parts that are connected to the rotating shaft and the upper end of the rotating shaft through hot jacketing or cold pressing ensure the stable and reliable operation of the rotating shaft, the compressor pump body and the compressor.
  • by opening the oil hole in the groove bottom of the groove not only the pump oil of the compressor pump body and the compressor is smooth, but also the groove bottom and the lower end surface of the short shaft are immersed in the freezing oil, which reduces Frictional power consumption increases compressor efficiency.
  • the compressor pump body and the compressor provided by the embodiment of the present invention connect a support plate on the lower end surface of the second flange for axially supporting the rotating shaft, and carry the rotating shaft and the upper end of the rotating shaft through the hot sleeve or the cold pressing.
  • the weight of the components such as the motor rotor that are connected together.
  • the axial support mode ensures stable and reliable operation of the rotating shaft and prevents axial rotation of the rotating shaft.
  • an oil guiding hole and an oil guiding groove are formed on the supporting plate to cooperate with the axial oil hole on the rotating shaft to ensure smooth pumping of the compressor pump body and the compressor.
  • the support plate and the lower end surface of the short shaft are immersed in the refrigerating oil, the frictional power consumption is reduced, and the compressor efficiency is improved.
  • FIG. 1 is a schematic exploded view showing the structure of a compressor pump body according to an embodiment of the present invention
  • FIG. 2 is a schematic structural view of a compressor pump body according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural view of a rotating shaft according to an embodiment of the present invention.
  • FIG. 4 is a cross-sectional view showing the structure of a rotating shaft according to an embodiment of the present invention.
  • FIG. 5 is a cross-sectional view showing the structure of a compressor pump body according to an embodiment of the present invention.
  • FIG. 6 is a cross-sectional view showing the structure of another compressor pump body according to an embodiment of the present invention.
  • Figure 7 is a schematic structural view of the second flange of the pump body of the compressor of Figure 6;
  • Figure 8 is a schematic structural view of a support plate of the compressor pump body of Figure 6;
  • FIG. 9 is a cross-sectional view showing the structure of still another compressor pump body according to an embodiment of the present invention.
  • Figure 10 is a bottom plan view of the second flange of the compressor pump body of Figure 9;
  • Figure 11 is a cross-sectional view of the second flange of the compressor pump body of Figure 9;
  • Figure 12 is a perspective view showing the second flange of the compressor body of Figure 9;
  • Figure 13 is a perspective structural view showing the second flange of the compressor pump body of Figure 9;
  • FIG. 14 is a schematic structural view of a compressor according to an embodiment of the present invention.
  • Figure 15 is a schematic diagram of a cross slide of a rotary cylinder piston compressor according to an embodiment of the present invention.
  • the embodiment provides a compressor pump body.
  • the compressor pump body includes a cylinder 3 , a cylinder liner 4 , and a piston 2 .
  • the cylinder liner 4 is fitted on the cylinder 3.
  • the piston 2 is mounted in the cylinder 3.
  • the second flange 5 is connected to the lower end of the cylinder liner 4.
  • the rotary shaft 1 is coupled to the piston 2 for driving the piston 2 and the cylinder 3 to rotate.
  • the shaft support structure (preferably, the axial support structure may include at least one of the first shaft support structure 111 in FIG. 5, the third shaft support structure 9 in FIG. 6, and the second shaft support structure 54 in FIG. ) for axially supporting the rotating shaft 1 to prevent the rotating shaft 1 from axially swaying.
  • the compressor pump body in the embodiment is mainly applied to a rotary cylinder piston compressor
  • the rotary cylinder piston compressor belongs to a brand new refrigeration piston compressor, which essentially adopts a cross slider structure principle.
  • O1 is the center of the rotating shaft
  • O2 is the center of the cylinder
  • e is the center-to-center distance (i.e., the eccentric amount of the compressor and the compressor pump body)
  • the square is the piston center 21.
  • the rotating shaft rotates, the piston is driven to perform a circular motion, and the distance of the piston from the center of the cylinder is in the range of 0-e.
  • the rotating shaft is eccentrically assembled with the cylinder, and the rotating shaft drives the cylinder to rotate through the piston. Since the rotating shaft and the cylinder have an eccentric relationship, the rotating shaft and the cylinder rotate around the respective axes during operation, and the piston reciprocates relative to the cylinder, thereby realizing gas compression.
  • the compressor pump body provided by the embodiment provides axial support for the rotating shaft of the compressor pump body by providing a rotating shaft support structure, and can also carry a rotating shaft, a motor rotor connected to the upper end of the rotating shaft through a hot sleeve or a cold pressure, and the like.
  • the weight of the components ensures stable and reliable operation of the shaft, no axial turbulence, and improved operational stability of the compressor body and compressor.
  • the compressor pump body provided in this embodiment further includes a plurality of pump body screws 8 to realize the combination of the plurality of components of the compressor pump body of FIG. 1 into the compressor pump of FIG. body.
  • the cylinder liner 4 is further provided with a valve flapper 41 and an exhaust valve flap 43 to realize exhaust of the compressor pump body. Further, the valve flapper 41 and the exhaust valve flap 43 are attached to the cylinder liner 42 by the valve screw 42.
  • the lower end surface of the cylinder liner 4 is also provided with a cylinder limiting plate 7 to limit the cylinder 3.
  • the rotating shaft of the compressor pump body in this embodiment includes a first shaft (i.e., a long shaft) 11 and a second shaft 12 (i.e., a short shaft).
  • the upper end of the second shaft 12 is connected to the lower end of the first shaft 11.
  • a central hole is formed in the piston, and correspondingly, the second shaft 12 is
  • the center hole of the piston is adapted to drive the piston and cylinder to rotate.
  • the inside of the rotating shaft is provided with an axial oil hole 13 extending through the entire rotating shaft.
  • the second shaft 12 is provided with a piston bearing surface 121 that cooperates with a central bore of the piston.
  • An oil groove 122 is defined in the piston supporting surface 121, and an oil hole 123 is defined in the oil groove 122.
  • the oil outlet hole 123 is in communication with the axial oil hole 13 .
  • the present embodiment provides a compressor pump body.
  • the lower end surface of the first shaft 11 in the rotating shaft of the present embodiment includes a first portion and a second portion 111 as compared with the previous embodiment.
  • the first portion is a connecting portion connected to the second shaft 12, and the second portion 111 is engaged with the upper end surface of the piston 2.
  • the rotating shaft support structure in this embodiment includes a first rotating shaft supporting structure, and the first rotating shaft supporting structure is the second portion 111 of the lower end surface of the first shaft 11.
  • the second portion 111 of the lower end surface of the first shaft 11 forms a ring boss disposed around the upper end surface of the second shaft 12 with respect to the upper end of the second shaft 12, and is first when the compressor pump body is in operation.
  • the second portion 111 of the lower end surface of the shaft 11 is in contact with the upper end surface of the piston 2, so that the first shaft 11 is engaged with the piston 2, so that the shaft receives the axial support of the piston 2.
  • the compressor pump body provided by the embodiment provides a first rotating shaft support structure on the lower end surface of the first shaft 11 of the rotating shaft, so that the rotating shaft obtains the axial support of the piston 2, that is, the first shaft is restricted by the piston; and the rotating shaft, and The weight of the motor rotor and other components connected to the upper end of the rotating shaft is carried by the piston 2, ensuring stable and reliable operation of the rotating shaft without axial turbulence.
  • the first shaft 11 of the rotating shaft is in contact with the piston in a small area, thereby reducing the frictional power consumption of the compressor pump body and the compressor, and improving the efficiency of the compressor pump body and the compressor.
  • the embodiment provides a compressor pump body.
  • the shaft support structure in this embodiment includes a second shaft support structure.
  • the second rotating shaft support structure is disposed on the second flange of the compressor pump body such that the second flange axially supports the rotating shaft.
  • the second rotating shaft support structure is a groove 54 disposed on the second flange 5 ; wherein the lower end of the second shaft 12 is adapted to the groove 54 , The lower end of the two shafts 12 is disposed in the recess 54 such that the shaft is axially supported by the bottom of the groove 54 of the second flange 5.
  • the compressor pump body provided in this embodiment is provided with a groove 54 adapted to the lower end of the second shaft 12 of the rotating shaft on the second flange 5 so as to limit the lower end surface of the rotating shaft, and carries the rotating shaft and the motor connected to the rotating shaft.
  • the weight of the rotor and other parts ensures stable and reliable operation of the shaft, no axial turbulence, and improves the stability of the compressor pump and compressor operation.
  • the groove bottom of the groove 54 is provided with an oil inlet hole 55 communicating with the outside, and the groove wall of the groove 54 is provided with an oil guiding groove 56.
  • the oil inlet hole 55 communicates with the axial oil hole of the rotating shaft, and the oil inlet hole 55 communicates with the compressor refrigerating oil to ensure smooth flow of the compressor pump body and the compressor pump.
  • the groove bottom of the groove 54 on the second flange 5 is in small area contact with the lower end surface of the rotating shaft, and the groove bottom of the groove 54 and the lower end surface of the rotating shaft are made due to the oil inlet hole 55 and the oil guiding groove 56 provided in the groove 54. They are all immersed in the refrigerating oil, which reduces the frictional power consumption of the compressor pump and compressor, and improves the efficiency of the compressor pump and compressor.
  • the present embodiment provides a compressor pump body.
  • the shaft support structure in this embodiment includes a third shaft support structure.
  • the third rotating shaft support structure is a support plate 9 connected to the lower end of the second flange 5.
  • the second flange 5 is provided with a through hole 51 for passing the lower end of the rotating shaft (the lower end of the second shaft 12) so that the lower end surface of the rotating shaft is supported on the support plate 9.
  • the support plate 9 is provided with an oil guiding hole 91 and an oil guiding groove 92; wherein the oil guiding groove 92 is in communication with the oil guiding hole 91.
  • the oil guiding hole on the support plate 9 communicates with the axial oil hole on the rotating shaft to ensure smooth pumping of the compressor pump body and the compressor.
  • the second flange 5 is provided with a first screw hole 53 for connecting the second flange 5 to the cylinder liner.
  • the second flange 5 is provided with a second screw hole 52 for connecting the support plate to the second flange 5.
  • the compressor pump body provided in this embodiment realizes axial support to the rotating shaft and a motor supporting the rotating shaft and the rotating shaft by connecting a supporting plate 9 at the lower end surface of the second flange 5.
  • the oil guiding groove 92 and the oil guiding hole 91 are disposed on the supporting plate 9, not only the pump oil of the compressor pump body and the compressor is ensured, but also the lower end surface of the rotating shaft is immersed in the freezing oil, thereby reducing the compressor pump.
  • the frictional power consumption of the body and compressor improves the efficiency of the compressor pump and compressor.
  • a groove may be provided on the support plate 9; wherein the lower end of the second shaft 12 is adapted to the groove on the support plate, and the lower end of the second shaft 12 is disposed on the support plate.
  • the rotating shaft is axially supported by the groove bottom of the groove on the support plate 9.
  • the compressor pump body may also include the second rotating shaft support structure and the third rotating shaft support structure.
  • the second shaft 12 includes a third shaft and a fourth shaft, wherein the upper end of the fourth shaft is coupled to the lower end of the third shaft, and the diameter of the third shaft is larger than the diameter of the fourth shaft, and thus the third shaft is not
  • the portion of the fourth shaft connection forms an annular lower end;
  • the second shaft support structure is a groove 54 disposed on the second flange 5; wherein the annular lower end of the third shaft is adapted to the groove 54 and is disposed in the concave In the groove 54, the rotating shaft is axially supported by the groove bottom of the groove 54 on the second flange 5.
  • the second flange 5 is provided with a through hole 51 for passing the lower end of the fourth shaft (also the lower end of the second shaft 12) so that the lower end surface of the rotating shaft is supported on the support plate 9, or on the support plate 9.
  • a groove is provided such that the lower end of the fourth shaft (also the lower end of the second shaft 12) is disposed in the groove on the support plate such that the shaft is again axially supported by the groove bottom of the groove on the support plate 9.
  • the compressor pump body may be selected from any one or more of the shaft support methods described in Embodiment 2 to Embodiment 4.
  • the compressor pump body may adopt the first shaft support structure in the above embodiment, One of the two-axis support structure and the third shaft support structure; or the first shaft support structure and the second shaft support structure in the above embodiment; or the first shaft support structure and the first embodiment in the above embodiment Three-axis support structure; other two support structures can be used at the same time or three support structures can be used at the same time; the specific choice depends on the actual use of the compressor pump body.
  • the present embodiment provides a compressor including a dispenser member 101, an upper cover assembly 102, a housing assembly 103, a motor assembly 104, a compressor pump body 105, and a lower portion.
  • Cover assembly 106 The compressor pump body 105 in the present embodiment is the compressor pump body of any of the above embodiments.
  • the compressor in this embodiment is a rotary cylinder piston compressor.
  • the compressor in this embodiment adopts the compressor pump body of any of the above embodiments, so that the rotating shaft of the compressor pump body 105 and the rotor and other components of the motor assembly 104 connected to the upper end of the rotating shaft are axially obtained. Support, so that the compressor runs stably and reliably. In addition, since the frictional force between the rotating shaft support structure and the rotating shaft is small, the frictional power consumption and noise of the compressor are reduced, and the efficiency of the compressor is improved.
  • the compressor body and the compressor provided by the above embodiments of the present invention not only provide the axial support of the rotating shaft of the compressor pump body but also the upper end of the rotating shaft through the hot sleeve or the cold pressure by providing the rotating shaft support structure.
  • the motor rotor and other components are connected together to prevent axial rotation of the rotating shaft, ensuring stable and reliable operation of the rotating shaft, and improving the operating stability of the compressor pump body and the compressor.

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Abstract

一种压缩机泵体包括气缸（3）、气缸套（4）、活塞（2）、第一法兰（6）、第二法兰（5）、转轴（1）以及转轴支撑结构。其中，气缸套（4）套装在气缸（3）上；活塞（2）安装在气缸（3）中；第一法兰（6）与气缸套（4）的上端连接；第二法兰（5）与气缸套（4）的下端连接；转轴（1）与活塞（2）连接，用于驱动活塞（2）和气缸（3）旋转；转轴支撑结构用于使转轴得到轴向支撑，以防止转轴轴向窜动。一种压缩机包括上述的压缩机泵体。该压缩机泵体主要用于使压缩机的转轴及与转轴连接的电机转子等零部件得到轴向支撑，防止转轴轴向窜动，从而使压缩机泵体及压缩机能够稳定可靠的运行。

Description

一种压缩机泵体及压缩机 技术领域
本发明涉及一种压缩机技术领域，特别是涉及一种压缩机泵体及压缩机。
背景技术
目前，制冷压缩机主要有活塞压缩机、转子式压缩机、涡旋压缩机等，适用于不同冷量场合。其中，将活塞压缩机和转子式压缩机的主要结构相结合，得到一种转缸活塞压缩机，为压缩机制冷行业开辟了新的天地。
在转缸活塞压缩机的泵体组件中，由转轴驱动活塞和气缸旋转。其中，转轴的长轴与电机转子通过热套或冷压的方式连接在一起；由于转轴-电机转子组件属于运动部件，需要其他部件进行支撑，才能确保泵体组件稳定可靠地运行。
在现有转缸活塞压缩机的泵体组件中，并没有对转轴较好的轴向支撑方式，在压缩机运行过程中，转轴容易发生轴向窜动，造成压缩机出现机械撞击等强烈振动，使压缩机噪音增大，降低压缩机的工作效率和使用寿命。
发明内容
有鉴于此，本发明提供一种压缩机泵体及压缩机，主要目的在于使转轴得到轴向支撑，防止转轴轴向窜动，以使压缩机泵体及压缩机能够稳定可靠的运行。
为达到上述目的，本发明主要提供如下技术方案：
一方面，本发明的实施例提供一种压缩机泵体，所述压缩机泵体包括：
气缸；
气缸套，所述气缸套套装在所述气缸上；
活塞，所述活塞安装在所述气缸中；
第一法兰，所述第一法兰与所述气缸套的上端连接；
第二法兰，所述第二法兰与所述气缸套的下端连接；
转轴，所述转轴与所述活塞连接，用于驱动所述活塞和气缸旋转；
转轴支撑结构，所述转轴支撑结构用于使所述转轴得到轴向支撑，以防止所述转轴轴向窜动。
本发明的目的及解决其技术问题还可采用以下技术措施进一步实现。
优选地，所述转轴包括第一轴和第二轴；其中，所述第二轴的上端与所述第一轴的下端连接；所述活塞上开设有中心孔，且所述第二轴与所述活塞的中心孔相适配，以驱动所述活塞和气缸旋转。
优选地，所述第一轴的下端面包括第一部分和第二部分；其中，所述第一部分为与所述第二轴连接的连接部，所述第二部分卡合在所述活塞的上端面上；其中，所述转轴支撑结构包括与所述第二轴下端向配合的第一转轴支撑结构，所述第一转轴支撑结构为所述第二部分，以使所述活塞轴向支撑所述转轴。
优选地，所述转轴支撑结构包括第二转轴支撑结构，所述第二转轴支撑结构设置在所述第二法兰上，以使所述第二法兰轴向支撑所述转轴。
优选地，所述第二转轴支撑结构为设置在所述第二法兰上的凹槽；所述第二轴的下端设置在所述凹槽中，且所述转轴由所述第二法兰上凹槽的槽底轴向支撑。
优选地，所述凹槽的槽底上开设有进油孔；所述凹槽的槽壁上设 置有导油槽。
优选地，所述转轴支撑结构包括第三转轴支撑结构；其中，所述第三转轴支撑结构为连接在所述第二法兰的下端的支撑板；
所述第二法兰上设置有用于使所述第二轴下端穿过的通孔，以使所述第二轴的下端面支撑在所述支撑板上，或，
所述第二法兰上设置有用于使所述第二轴下端穿过的通孔，所述支撑板上设置有支撑板凹槽；所述第二轴的下端设置在所述支撑板凹槽中，且所述转轴由所述支撑板凹槽的槽底轴向支撑。
优选地，所述支撑板上开设有导油孔和导油槽；其中，所述导油槽与所述导油孔连通。
优选地，其中，所述转轴的内部开设有贯穿整个转轴的轴向油孔；所述第二轴设置有与所述活塞的中心孔配合的活塞支承面，其中所述活塞支承面上开设有油槽，且所述油槽上开设有出油孔；其中，所述出油孔与所述轴向油孔连通。
另一方面，本发明的实施例提供一种压缩机，所述压缩机包括上述任一项所述的压缩机泵体。
借由上述技术方案，本发明的压缩机泵体及压缩机至少具有下列
有益效果：
本发明实施例提供的压缩机泵体及压缩机通过设置转轴支撑结构不仅使压缩机泵体的转轴得到轴向支撑，还能承载与转轴上端通过热套或冷压的方式连接在一起的电机转子及其它零部件，从而防止转轴发生轴向窜动，确保了转轴稳定可靠运行，提高了压缩机泵体及压缩机的运行稳定性。
进一步地，本发明实施例提供的压缩机泵体及压缩机通过在转轴的长轴(即，第一轴)下端面设置第一转轴支撑结构，使活塞轴向支撑转轴，并由活塞来承载转轴、与转轴上端通过热套或冷压的方式连接在一起的电机转子等零部件的重量，保证了转轴稳定可靠运行。另 外，转轴与活塞为小面积接触，降低了压缩机泵体及压缩机的摩擦功耗，提高了压缩机的效率。
进一步地，本发明实施例提供的压缩机泵体及压缩机通过在第二法兰上设置第二轴向支撑结构(即，与短轴(第二轴)下端适配的凹槽)来限位转轴，并且承载转轴、与转轴上端通过热套或冷压的方式连接在一起的电机转子等零部件的重量，确保了转轴、压缩机泵体及压缩机的稳定可靠运行。另外，通过在凹槽的槽底上开设油孔，不仅确保压缩机泵体及压缩机的泵油顺畅，还使凹槽的槽底和短轴的下端面均浸泡在冷冻油里面，降低了摩擦功耗，提高了压缩机效率。
进一步地，本发明实施例提供的压缩机泵体及压缩机通过在第二法兰的下端面连接一支撑板用于轴向支撑转轴，并且承载转轴、与转轴上端通过热套或冷压的方式连接在一起的电机转子等零部件的重量。该轴向支撑方式保证了转轴稳定可靠运行，防止转轴轴向窜动。另外，在支撑板上开设导油孔和导油槽，与转轴上的轴向油孔相配合，确保了压缩机泵体及压缩机的泵油顺畅。此外，由于支撑板和短轴的下端面均浸泡在冷冻油里，降低了摩擦功耗，提高了压缩机效率。
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，并可依照说明书的内容予以实施，以下以本发明的较佳实施例并配合附图详细说明如后。
附图说明
图1是本发明的实施例提供的一种压缩机泵体的结构分解示意图；
图2是本发明的实施例提供的一种压缩机泵体的组合结构示意图；
图3是本发明实施例提供的一种转轴的结构示意图；
图4是本发明实施例提供的一种转轴的结构剖视示意图；
图5是本发明实施例提供的一种压缩机泵体的结构剖视示意图；
图6是本发明实施例提供的另一种压缩机泵体的结构剖视示意图；
图7是图6中压缩机机泵体的第二法兰的结构示意图；
图8是图6中压缩机泵体的支撑板的结构示意图；
图9是本发明实施例提供的又一种压缩机泵体的结构剖视示意图；
图10是图9中压缩机泵体的第二法兰的仰视图；
图11是图9中压缩机泵体的第二法兰的剖视图；
图12是图9中压缩机泵体的第二法兰的立体结构示意图；
图13是图9中压缩机泵体的第二法兰的立体结构剖视图；
图14是本发明实施例提供的一种压缩机的结构示意图；
图15是本发明实施例提供的转缸活塞压缩机的十字滑块原理图。
具体实施方式
为更进一步阐述本发明为达成预定发明目的所采取的技术手段及功效，以下结合附图及较佳实施例，对依据本发明申请的具体实施方式、结构、特征及其功效，详细说明如后。在下述说明中，不同的“一实施例”或“实施例”指的不一定是同一实施例。此外，一或多个实施例中的特定特征、结构、或特点可由任何合适形式组合。
实施例1
如图1、图2、图5、图6及图9所示，本实施例提供一种压缩机泵体，具体地，该压缩机泵体包括气缸3、气缸套4、活塞2、第一法兰6、第二法兰5、转轴1及转轴支撑结构。其中，气缸套4套装在气缸3上。活塞2安装在气缸3中。第一法兰6与气缸套4的上 端连接。第二法兰5与气缸套4的下端连接。转轴1与活塞2连接，用于驱动活塞2和气缸3旋转。转轴支撑结构(优选地，轴向支撑结构可包括图5中的第一转轴支撑结构111、图6中的第三转轴支撑结构9以及图11中的第二转轴支撑结构54中至少一种结构)用于使转轴1得到轴向支撑，以防止转轴1轴向窜动。
在此，本实施例中的压缩机泵体主要应用在转缸活塞压缩机中，转缸活塞压缩机属于一种全新的制冷活塞压缩机，其本质上是采用一种十字滑块结构原理。如图15所示，O1为转轴圆心，O2为气缸圆心，e为圆心距(即压缩机和压缩机泵体的偏心量)，方块为活塞质心21。转轴转动时，带动活塞进行圆周运动，活塞相对于气缸中心的距离在0-e的范围内进行。这样转轴与气缸成偏心装配，转轴通过活塞带动气缸旋转。由于转轴与气缸存在偏心关系，运行时转轴和气缸分别绕各自的轴心旋转，相对于气缸，活塞做往复运动，从而实现气体的压缩。
本实施例提供的压缩机泵体通过设置转轴支撑结构使压缩机泵体的转轴得到轴向支撑，还能承载转轴、与转轴上端通过热套或冷压的方式连接在一起的电机转子等其他零部件的重量，从而确保了转轴稳定可靠运行，不发生轴向窜动，提高了压缩机泵体及压缩机的运行稳定性。
如图1和图2所示，本实施例提供的压缩机泵体还包括多个泵体螺钉8，以实现将图1中压缩机泵体的多个零部件组合成图2中压缩机泵体。另外，气缸套4上还设置有阀片挡板41、排气阀片43，以实现压缩机泵体的排气。并且阀片挡板41、排气阀片43通过阀螺钉42安装在气缸套42上。另外，气缸套4的下端面还设置有气缸限位板7，以对气缸3进行限位。
如图3和图4所示，本实施例中压缩机泵体的转轴包括第一轴(即，长轴)11和第二轴12(即，短轴)。其中，第二轴12的上端与第一轴11的下端连接。活塞上开设有中心孔，相应地，第二轴12与 活塞的中心孔相适配，以驱动活塞和气缸旋转。转轴的内部开设有贯穿整个转轴的轴向油孔13。第二轴12设置有与活塞的中心孔配合的活塞支承面121。活塞支承面上121开设有油槽122，且油槽122上开设有出油孔123。其中，出油孔123与轴向油孔13连通。
实施例2
较佳地，如图5所示，本实施例提供一种压缩机泵体，与上一实施例相比，本实施例转轴中的第一轴11下端面包括第一部分和第二部分111。其中，第一部分为与第二轴12连接的连接部，第二部分111卡合在活塞2的上端面上。其中，本实施例中的转轴支撑结构包括第一转轴支撑结构，该第一转轴支撑结构即为第一轴11下端面的第二部分111。
本实施例中第一轴11下端面的第二部分111相对于第二轴12的上端而言形成围绕第二轴12上端面设置的一圈凸台，在压缩机泵体运行时，第一轴11下端面的第二部分111与活塞2的上端面接触，使第一轴11卡合在活塞2上，从而使转轴得到活塞2的轴向支撑。
本实施例提供的压缩机泵体通过在转轴的第一轴11下端面设置第一转轴支撑结构，使转轴得到活塞2的轴向支撑，即通过活塞来限位第一轴；并且转轴、与转轴上端连接的电机转子等零部件的重量均由活塞2来承载，确保了转轴稳定可靠运行，不发生轴向窜动。另外，本实施例中转轴的第一轴11与活塞为小面积接触，从而降低了压缩机泵体及压缩机的摩擦功耗，提高了压缩机泵体及压缩机的效率。
实施例3
较佳地，本实施例提供一种压缩机泵体，与实施例1相比，本实施例中的转轴支撑结构包括第二转轴支撑结构。其中，第二转轴支撑结构设置在压缩机泵体的第二法兰上，以使第二法兰轴向支撑转轴。
具体地，如图9至图13所示，第二转轴支撑结构为设置在第二法兰5上的凹槽54；其中，第二轴12的下端与凹槽54相适配，第 二轴12的下端设置在凹槽54中，使转轴由第二法兰5上凹槽54的槽底轴向支撑。
本实施例提供的压缩机泵体通过在第二法兰5上设置与转轴的第二轴12下端适配的凹槽54，使其限制转轴的下端面，并且承载转轴以及与转轴连接的电机转子等零件的重量，确保转轴稳定可靠运行，不发生轴向窜动，提高了压缩机泵体及压缩机运行的稳定性。
较佳地，本实施例中凹槽54的槽底上设置有与外界连通的进油孔55，凹槽54的槽壁上设置有导油槽56。进油孔55与转轴的轴向油孔连通，且进油孔55和压缩机冷冻油相通，以确保压缩机泵体及压缩机泵油顺畅。第二法兰5上凹槽54的槽底与转轴的下端面为小面积接触，同时由于凹槽54上设置的进油孔55和导油槽56使凹槽54的槽底与转轴的下端面均浸泡在冷冻油里，从而降低了压缩机泵体及压缩机的摩擦功耗，提高了压缩机泵体及压缩机的效率。
实施例4
较佳地，本实施例提供一种压缩机泵体，与实施例1相比，如图6、图7和图8所示，本实施例中的转轴支撑结构包括第三转轴支撑结构。其中，第三转轴支撑结构为连接在第二法兰5下端的支撑板9。相应地，第二法兰5上设置有用于使转轴下端(第二轴12的下端)穿过的通孔51，以使转轴的下端面支撑在支撑板9上。
较佳地，如图8所示，支撑板9上开设有导油孔91和导油槽92；其中，导油槽92与导油孔91连通。支撑板9上的导油孔与转轴上的轴向油孔相连通，确保压缩机泵体及压缩机的泵油顺畅。
如图7所示，第二法兰5上设置有第一螺孔53，用于实现第二法兰5与气缸套的连接。第二法兰5上设置有第二螺孔52，用于实现支撑板与第二法兰5的连接。
本实施例提供的压缩机泵体通过在第二法兰5的下端面连接一个支撑板9实现对转轴的轴向支撑以及承载转轴、与转轴连接的电机 转子等零部件的重量，以确保转轴稳定可靠运行，不发生轴向窜动，提高了压缩机泵体及压缩机运行的稳定性。另外，由于支撑板9上设置导油槽92与导油孔91，不仅确保压缩机泵体及压缩机的泵油顺畅，还能使转轴的下端面均浸泡冷冻油里，从而降低了压缩机泵体及压缩机摩擦功耗，提高了压缩机泵体及压缩机的效率。
优选地，也可如实施例3的结构，在支撑板9上设置凹槽；其中，第二轴12的下端与支撑板上的凹槽相适配，第二轴12的下端设置在支撑板上的凹槽中，使转轴由支撑板9上凹槽的槽底轴向支撑。
优选地，压缩机泵体也可以同时包括上述第二转轴支撑结构及第三转轴支撑结构。此时，第二轴12包括第三轴和第四轴，其中，第四轴的上端与第三轴的下端连接，第三轴的直径大于第四轴的直径，因此在第三轴未与第四轴连接的部分形成环状下端；第二转轴支撑结构为设置在第二法兰5上的凹槽54；其中，第三轴的环状下端与凹槽54相适配且设置在凹槽54中，使转轴由第二法兰5上凹槽54的槽底轴向支撑。同时，第二法兰5上设置有用于使第四轴下端(也是第二轴12的下端)穿过的通孔51，以使转轴的下端面支撑在支撑板9上，或者在支撑板9上设置凹槽，使得第四轴下端(也是第二轴12的下端)设置在支撑板上的凹槽中，使转轴由支撑板9上凹槽的槽底再次提供轴向支撑。在此，压缩机泵体可以选用实施例2-实施例4中所述的任一种或几种的转轴支撑方式，如，压缩机泵体可以采用上述实施例中第一转轴支撑结构、第二转轴支撑结构及第三转轴支撑结构中的一种；或同时采用上述实施例中的第一转轴支撑结构和第二转轴支撑结构；或同时采用上述实施例中的第一转轴支撑结构和第三转轴支撑结构；也可同时采用其他两种支撑结构或者同时采用三种支撑结构；具体选择根据压缩机泵体的实际使用情况而定。
实施例5
另一方面，如图14所示，本实施例提供一种压缩机，该压缩机包括分液器部件101、上盖组件102、壳体组件103、电机组件104、压缩机泵体105和下盖组件106。其中，本实施例中的压缩机泵体105为上述任一实施例的压缩机泵体。本实施例中的压缩机为转缸活塞压缩机。
本实施例中的压缩机由于采用了上述任一实施例的压缩机泵体，使得压缩机泵体105中的转轴及电机组件104中的与转轴上端连接的电机转子及其它零部件得到轴向支撑，从而使压缩机稳定可靠地运行。另外，由于转轴支撑结构与转轴的摩擦力较小，从而降低了压缩机的摩擦功耗和噪音，提高了压缩机的效率。
综上所述，本发明上述实施例提供的压缩机泵体及压缩机通过设置转轴支撑结构不仅使压缩机泵体的转轴得到轴向支撑，还能承载与转轴上端通过热套或冷压的方式连接在一起的电机转子及其它零部件，从而防止转轴发生轴向窜动，确保了转轴稳定可靠运行，提高了压缩机泵体及压缩机的运行稳定性。
综上，本领域技术人员容易理解的是，在不冲突的前提下，上述各有利方式可以自由地组合、叠加。
以上所述，仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明技术方案的范围内。

Claims (10)

  1. 一种压缩机泵体，其特征在于，所述压缩机泵体包括：
    气缸；
    气缸套，所述气缸套套装在所述气缸上；
    活塞，所述活塞安装在所述气缸中；
    第一法兰，所述第一法兰与所述气缸套的上端连接；
    第二法兰，所述第二法兰与所述气缸套的下端连接；
    转轴，所述转轴与所述活塞连接，用于驱动所述活塞和气缸旋转；
    转轴支撑结构，所述转轴支撑结构用于使所述转轴得到轴向支撑，以防止所述转轴轴向窜动。
  2. 根据权利要求1所述的压缩机泵体，其特征在于，所述转轴包括第一轴和第二轴；其中，所述第二轴的上端与所述第一轴的下端连接；
    所述活塞上开设有中心孔，且所述第二轴与所述活塞的中心孔相适配，以驱动所述活塞和气缸旋转。
  3. 根据权利要求2所述的压缩机泵体，其特征在于，所述第一轴的下端面包括第一部分和第二部分；其中，所述第一部分为与所述第二轴连接的连接部，所述第二部分卡合在所述活塞的上端面上；
    其中，所述转轴支撑结构包括第一转轴支撑结构，所述第一转轴支撑结构为所述第一轴下端面的第二部分，以使所述活塞轴向支撑所述转轴。
  4. 根据权利要求2或3所述的压缩机泵体，其特征在于，所述转轴支撑结构包括与所述第二轴的下端相配合的第二转轴支撑结构，所述第二转轴支撑结构设置在所述第二法兰上，以使所述第二法兰轴向支撑所述转轴。
  5. 根据权利要求4所述的压缩机泵体，其特征在于，所述第二转轴支撑结构为设置在所述第二法兰上的凹槽；所述第二轴的下端设 置在所述凹槽中，且所述转轴由所述第二法兰上凹槽的槽底轴向支撑。
  6. 根据权利要求5所述的压缩机泵体，其特征在于，所述凹槽的槽底上开设有进油孔；所述凹槽的槽壁上设置有导油槽。
  7. 根据权利要求2或3所述的压缩机泵体，其特征在于，所述转轴支撑结构包括第三转轴支撑结构；其中，所述第三转轴支撑结构为连接在所述第二法兰的下端的支撑板；
    所述第二法兰上设置有用于使所述第二轴下端穿过的通孔，以使所述第二轴的下端面支撑在所述支撑板上，或，
    所述第二法兰上设置有用于使所述第二轴下端穿过的通孔，所述支撑板上设置有支撑板凹槽；所述第二轴的下端设置在所述支撑板凹槽中，且所述转轴由所述支撑板凹槽的槽底轴向支撑。
  8. 根据权利要求7所述的压缩机泵体，其特征在于，所述支撑板上开设有导油孔和导油槽；其中，所述导油槽与所述导油孔连通。
  9. 根据权利要求2所述的压缩机泵体，其特征在于，
    其中，所述转轴的内部开设有贯穿整个转轴的轴向油孔；
    所述第二轴设置有与所述活塞的中心孔配合的活塞支承面，其中所述活塞支承面上开设有油槽，且所述油槽上开设有出油孔；
    其中，所述出油孔与所述轴向油孔连通。
  10. 一种压缩机，其特征在于，所述压缩机包括权利要求1-9任一项所述的压缩机泵体。
PCT/CN2017/073152 2016-07-28 2017-02-09 一种压缩机泵体及压缩机 WO2018018871A1 (zh)

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