CN209414091U - Compressor and refrigerating plant with it - Google Patents
Compressor and refrigerating plant with it Download PDFInfo
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- CN209414091U CN209414091U CN201822087244.4U CN201822087244U CN209414091U CN 209414091 U CN209414091 U CN 209414091U CN 201822087244 U CN201822087244 U CN 201822087244U CN 209414091 U CN209414091 U CN 209414091U
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- compressor
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- pin
- connecting rod
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- 238000005057 refrigeration Methods 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 47
- 230000000694 effects Effects 0.000 description 5
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 238000004512 die casting Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
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- Compressor (AREA)
Abstract
The utility model provides a kind of compressor and the refrigerating plant with it.Compressor includes: crankshaft, and crankshaft has the first connection structure；Link mechanism, the first end of link mechanism are provided with the second connection structure matched with the first connection structure, and link mechanism is connected by the second connection structure with crankshaft, and the second end of link mechanism with piston for being connected；Wherein, the second connection structure of part is located in the first connection structure.By will be in the first connection structure for being set to crankshaft of the second connection structure part of link mechanism, setting can increase the carrying bearing area of link mechanism and crankshaft in this way, enable the link mechanism to carry out well running without wearing under different loads, effectively improves the connection reliability between link mechanism and crankshaft.
Description
Technical Field
The utility model relates to a refrigeration plant technical field particularly, relates to a compressor and have its refrigerating plant.
Background
The connecting rod of the existing variable frequency piston compressor basically comprises a big end and a small end, wherein the big end in the compressor is connected with a crank pin, and the small end is connected with a piston pin. The big end part of the connecting rod is a round hole, and the crankpin part is a cylinder. During assembly, the connecting rod is sleeved on the outer ring of the crank pin, the motor drives the crank to rotate, and the connecting rod converts the rotating motion of the crank into the reciprocating motion of the piston to push the piston to do work.
The inverter compressor can run at a high frequency of 75Hz under the condition of large load (such as the environment temperature is over 35 ℃). Higher load requires more highly to the bearing, and prior art all is connected with the big end hole singleness of connecting rod through the crank pin, and only single wall plays the bearing support effect. When the load is higher, the bearing surface is easy to wear, the quality accident of the compressor is caused, and the reliability of the compressor is low.
Some prior art have used a connecting rod structure with a rolling bearing. The structure can play a certain role in reducing friction power consumption under the condition of light load, and is not suitable for heavy-load operation due to low bearing capacity of the ball bearing. And the connecting rod structure of the structure is not suitable for high-frequency operation, so that the ball is easy to lose efficacy, and the problem of reliability of operation of the compressor is caused.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a compressor and have its refrigerating plant to solve the problem that compressor reliability is low among the prior art.
In order to achieve the above object, according to an aspect of the present invention, there is provided a compressor including: a crankshaft having a first connection structure; the first end of the connecting rod structure is provided with a second connecting structure matched with the first connecting structure, the connecting rod structure is connected with the crankshaft through the second connecting structure, and the second end of the connecting rod structure is used for being connected with the piston; wherein part of the second connecting structure is positioned in the first connecting structure.
Further, the crankshaft includes: a main shaft; the main shaft is connected with the first connecting surface of the balance block; the second that the round pin, round pin and first connecting surface set up relatively is connected the face and is connected, and the axis of round pin sets up with the axis dislocation of main shaft, and first connecting hole has been seted up to the tip of round pin, and first connecting hole forms first connection structure.
Furthermore, a first oil outlet hole is formed in the hole wall of the first connecting hole.
Further, the outer peripheral face of crank pin is provided with the first oil groove of leading, and the first end and the first oil outlet of the first oil groove of leading are linked together, and the first second end of leading the oil groove extends and link up the terminal surface setting of crank pin along the axis direction spiral of crank pin.
Further, the outer peripheral face of main shaft is provided with the second oil outlet and the second leads the oil groove, and the second oil outlet is linked together with the inside central channel of main shaft, and the first end and the second oil outlet of oil groove are linked together are led to the second, and the second leads the axis direction spiral extension setting of oil groove along the main shaft and is linked together with first connecting hole.
Further, connecting rod structure's first end is the columnar structure, and the axis of columnar structure and the coaxial setting of the axis of crank pin, the ring channel that is used for holding the crank pin is offered to the tip of one side of the orientation crank pin of columnar structure, and the one side that is located the ring channel internal face and is close to columnar structure's geometric center of connecting rod structure forms the round pin post structure.
Furthermore, the bottom of the annular groove is provided with a plurality of oil leakage holes which are arranged at intervals along the circumferential direction of the annular groove.
Further, the pin column structure is a solid structure, or the pin column structure is provided with a through hole, and the axis of the through hole is arranged in a penetrating manner along the axis direction of the pin column structure.
Further, the pin structure has an outer diameter ofWherein,
further, the pin column structure is provided with a through hole, and the inner diameter of the through hole isWherein,
furthermore, the thickness of the groove wall of the side, far away from the geometric center of the columnar structure, of the annular groove is W1, wherein W1 is more than or equal to 2mm and less than or equal to 5mm, and/or the depth of the annular groove is L1, and the height of the columnar structure is L, wherein L1/L is more than or equal to 0.5 and less than or equal to 0.9.
Further, the wall thickness of the first connecting hole is W2, wherein, W2 is more than or equal to 0.5mm and less than or equal to 3 mm.
According to another aspect of the present invention, there is provided a refrigeration device, comprising a compressor, wherein the compressor is the above-mentioned compressor.
Use the technical scheme of the utility model, through with the second connection structure part of connecting rod structure set up in the first connection structure of bent axle, set up like this and to increase the bearing support area of connecting rod structure and bent axle for this connecting rod structure can carry out good operation and not take place wearing and tearing under different loads, has improved the reliability of being connected between connecting rod structure and the bent axle effectively.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 shows an exploded structural schematic of an embodiment of a compressor according to the present invention;
fig. 2 shows a perspective structural schematic of an embodiment of a crankshaft according to the present invention;
fig. 3 shows a schematic cross-sectional structural view of an embodiment of a crankshaft according to the present invention;
fig. 4 shows a schematic construction of a first embodiment of a connecting rod arrangement according to the invention;
fig. 5 shows a schematic construction of a second embodiment of a connecting rod arrangement according to the invention;
fig. 6 shows a schematic cross-sectional structural view of a third embodiment of a connecting rod arrangement according to the invention;
fig. 7 shows a schematic construction of a fourth embodiment of a connecting rod arrangement according to the invention;
fig. 8 shows a schematic construction of a fifth embodiment of a connecting rod arrangement according to the invention;
fig. 9 shows a schematic cross-sectional structure of a sixth embodiment of a connecting rod arrangement according to the invention.
Wherein the figures include the following reference numerals:
10. a crankshaft;
11. a main shaft; 111. a second oil outlet hole; 112. a second oil guide groove;
12. a counterbalance;
13. a crank pin; 131. a first connection hole; 132. a first oil outlet hole; 133. a first oil guide groove;
20. a connecting rod structure;
21. an annular groove; 211. an oil leak hole;
22. a pin structure; 221. a through hole;
30. a cylinder block; 31. and a bearing hole.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
Exemplary embodiments according to the present application will now be described in more detail with reference to the accompanying drawings. These exemplary embodiments may, however, be embodied in many different forms and should not be construed as limited to only the embodiments set forth herein. It is to be understood that these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art, in the drawings, it is possible to enlarge the thicknesses of layers and regions for clarity, and the same devices are denoted by the same reference numerals, and thus the description thereof will be omitted.
Referring to fig. 1 to 9, according to an embodiment of the present invention, a compressor is provided.
Specifically, as shown in fig. 1, the compressor includes a crankshaft 10 and a connecting rod structure 20. A first end of the crankshaft 10, which is provided with a first connecting structure and the connecting rod structure 20, is provided with a second connecting structure matched with the first connecting structure, the connecting rod structure 20 is connected with the crankshaft 10 through the second connecting structure, and a second end of the connecting rod structure 20 is used for being connected with a piston; wherein part of the second connecting structure is positioned in the first connecting structure.
In this embodiment, the second connection structure portion of the connection rod structure is arranged in the first connection structure of the crankshaft, so that the bearing and supporting areas of the connection rod structure and the crankshaft can be increased, the connection rod structure can well operate under different loads without abrasion, and the connection reliability between the connection rod structure and the crankshaft is effectively improved.
As shown in fig. 2 and 3, the crankshaft 10 includes a main shaft 11, a balance weight 12, and a crank pin 13. The main shaft 11 is connected to a first connecting surface of the balance weight 12. The second that crank pin 13 and first connecting surface set up relatively is connected, and the axis of crank pin 13 sets up with the axis dislocation of main shaft 11, and first connecting hole 131 has been seted up to the tip of crank pin 13, and first connecting hole 131 forms first connection structure. The arrangement effectively improves the connection reliability between the connecting rod structure and the crankshaft.
Wherein, a first oil outlet 132 is disposed on the hole wall of the first connecting hole 131. The outer peripheral face of crank pin 13 is provided with first oil groove 133 of leading, and first oil outlet 132 is linked together to the first end of leading oil groove 133, and the first end of leading oil groove 133 extends and link up the terminal surface setting of crank pin 13 along the axis direction spiral of crank pin 13. This arrangement enables the lubricating oil in the first connecting hole 131 to be discharged through the first oil outlet 132, and then lubrication of the crank pin 13 by the first oil guide groove 133 is avoided.
Further, the outer circumferential surface of the main shaft 11 is provided with a second oil outlet hole 111 and a second oil guide groove 112, the second oil outlet hole 111 is communicated with the inner central passage of the main shaft 11, a first end of the second oil guide groove 112 is communicated with the second oil outlet hole 111, and the second oil guide groove 112 is spirally extended along the axial direction of the main shaft 11 and is communicated with the first connection hole 131. This arrangement enables lubrication of the crank pin in lifting the lubricating oil in the oil sump to the first connection hole 131 through the second oil guide groove 112.
Specifically, as shown in fig. 4, the first end of the connecting rod structure 20 is a columnar structure, the axis of the columnar structure is coaxial with the axis of the crank pin 13, the end of the columnar structure facing one side of the crank pin 13 is provided with an annular groove 21 for accommodating the crank pin 13, and one side of the connecting rod structure 20, which is located on the inner wall surface of the annular groove 21 and close to the geometric center of the columnar structure, forms a pin column structure 22. The arrangement is such that both the outer and inner circumferential surfaces of the crank pin are connected to the connecting rod structure and form a load bearing surface.
In order to reduce the weight of the connecting rod structure, a plurality of oil leakage holes 211 may be provided at the bottom of the annular groove 21, and the plurality of oil leakage holes 211 may be provided at intervals in the circumferential direction of the annular groove 21.
As shown in fig. 6, the pin structure 22 is a solid structure. Of course, as shown in fig. 7 to 9, the pin structure 22 may be provided with a through hole 221, and an axis of the through hole 221 may be provided to penetrate in the axial direction of the pin structure 22. This arrangement can further reduce the weight of the link structure.
Preferably, the pin structure 22 has an outer diameter ofWherein,the pin column structure 22 is provided with a through hole 221, and the inner diameter of the through hole 221 isWherein,the thickness of the groove wall of the annular groove 21 on the side far away from the geometric center of the columnar structure is W1, wherein W1 is more than or equal to 2mm and less than or equal to 5mm, and/or the depth of the annular groove 21 is L1, the height of the columnar structure is L, wherein L1/L is more than or equal to 0.5 and less than or equal to 0.9. The wall thickness of the first connecting hole 131 is W2, wherein W2 is more than or equal to 0.5mm and less than or equal to 3 mm.
The compressor structure in the above-mentioned embodiment can also be used for refrigeration plant technical field, promptly according to the utility model discloses a further aspect provides a refrigerating plant, includes the compressor, and the compressor is the compressor in the above-mentioned embodiment. The refrigeration device may be a refrigerator.
Specifically, adopt the annular groove connecting rod of this application can guarantee that the inner wall and the outer wall of crank pin play the bearing support effect simultaneously with the bent axle cooperation, can improve the bearing capacity of bearing, solved the part reliability problems such as wearing and tearing that the compressor brought when high load operation. The matching part of the crank pin and the connecting rod adopts double-wall surface support, so that the bearing capacity of the bearing is improved, the height of the connecting rod can be lower, and the volume of the compressor can be smaller. In the embodiment, the bearing area is increased by the double bearing effect, the bearing capacity of parts is improved, and therefore the reliability of the compressor is improved.
The utility model relates to a connecting rod with annular groove structure, utility model a bent axle simultaneously, its characteristics are the crank pin of bent axle is cylindrical, and inside is the hollow cylinder counter bore. The connecting rod is matched with the inner wall and the outer wall of the crank pin, and the inner wall and the outer wall play a role of double bearings at the same time, so that the bearing capacity of the bearing is improved.
The crankshaft main shaft part is arranged in a bearing hole 31 of the cylinder block 30, and the crankshaft main shaft part and the bearing hole are in clearance fit. The crank pin part is in clearance fit with the big end of the connecting rod, and the wall surface of the crank pin is clamped in an annular groove in the big hole of the connecting rod. The inner wall surface and the outer wall surface of the crank pin are matched with the inner wall surface and the outer wall surface of the annular groove, so that the supporting area of the bearing surface is increased, and the bearing capacity of the bearing is improved.
The crankshaft comprises a main shaft and a crankshaft. The main shaft is provided with a second oil outlet, and the outer wall surface is provided with a spiral oil groove. The crank pin is a hollow cylinder, an oil hole is formed in the crank pin, namely a central channel, and a first oil guide groove is formed in the outer wall surface and plays an oil guide role as a part of an oil way. The thickness of the wall surface of the crank pin is generally 0.5mm-3mm, and an oil hole is arranged inside the crank pin. Lubricating oil passes through the oil pump effect during compressor operation, enters into the second by the second oil-out and leads the oil groove, and wherein, the second leads the afterbody of oil groove to set to the through-hole structure that is linked together with first connecting hole, leads the oil groove afterbody at the second and enters into the first connecting hole of crank pin through the oilhole, then rises to the top of bent axle along the crank pin outer wall through first oil-out to the form of parabola is thrown away. The inner wall and the outer wall of the crank pin are both matched with the big end of the connecting rod, so that the inner wall surface and the outer wall surface both need to be finished. The outer wall surface can be processed by an eccentric grinding machine, and the inner wall surface can be processed by an inner grinding machine.
The connecting rod structure comprises a large end and a small end, wherein the first end of the connecting rod structure is the large end, and the second end of the connecting rod structure is the small end. The inside of the big head is provided with an annular groove and a pin, and the center of the pin is provided with an apertureRound hole, pin outside diameterThe wall thickness of the big end of the connecting rod is 2mm-5mm, the depth of the annular groove is L1, and the height of the big end of the connecting rod is L1/L which is 0.5-0.9. 3-6 groups of trapezoidal oil leakage holes are formed in the wall surface formed by the annular groove and the end surface of the big end of the connecting rod, and the oil leakage holes can be designed to be round, square or other shapes. The connecting rod is light in weight and can be formed by die casting. Two walls of the annular groove are in precise clearance fit with the crank pin, and the two walls need to be subjected to finish machining, and the two walls can be generally subjected to internal grinding.
In addition to the foregoing, it should be noted that reference throughout this specification to "one embodiment," "another embodiment," "an embodiment," or the like, means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment described generally throughout this application. The appearances of the same phrase in various places in the specification are not necessarily all referring to the same embodiment. Further, when a particular feature, structure, or characteristic is described in connection with any embodiment, it is submitted that it is within the scope of the invention to effect such feature, structure, or characteristic in connection with other embodiments.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. A compressor, comprising:
a crankshaft (10), the crankshaft (10) having a first connection structure;
the first end of the connecting rod structure (20) is provided with a second connecting structure matched with the first connecting structure, the connecting rod structure (20) is connected with the crankshaft (10) through the second connecting structure, and the second end of the connecting rod structure (20) is used for being connected with a piston;
wherein a portion of the second connection structure is located within the first connection structure.
2. Compressor according to claim 1, characterized in that said crankshaft (10) comprises:
a main shaft (11);
a balance weight (12), wherein the main shaft (11) is connected with a first connecting surface of the balance weight (12);
crank pin (13), crank pin (13) with the second that first connecting surface set up relatively is connected, the axis of crank pin (13) with the axis setting of misplacing of main shaft (11), first connecting hole (131) have been seted up to the tip of crank pin (13), first connecting hole (131) form first connection structure.
3. The compressor as claimed in claim 2, wherein the first connecting hole (131) has a first oil outlet hole (132) formed on a hole wall thereof.
4. The compressor of claim 3, wherein the outer circumferential surface of the crank pin (13) is provided with a first oil guide groove (133), a first end of the first oil guide groove (133) communicates with the first oil outlet hole (132), and a second end of the first oil guide groove (133) extends spirally in the axial direction of the crank pin (13) and is disposed through an end surface of the crank pin (13).
5. The compressor of claim 2, wherein the outer circumferential surface of the main shaft (11) is provided with a second oil outlet hole (111) and a second oil guide groove (112), the second oil outlet hole (111) communicates with the inner central passage of the main shaft (11), a first end of the second oil guide groove (112) communicates with the second oil outlet hole (111), and the second oil guide groove (112) extends spirally along the axial direction of the main shaft (11) and communicates with the first connection hole (131).
6. The compressor of claim 2, wherein the first end of the connecting rod structure (20) is a cylindrical structure, an axis of the cylindrical structure is coaxial with an axis of the crank pin (13), an annular groove (21) for accommodating the crank pin (13) is opened at an end of the cylindrical structure facing one side of the crank pin (13), and a pin column structure (22) is formed at one side of an inner wall surface of the annular groove (21) close to a geometric center of the cylindrical structure of the connecting rod structure (20).
7. The compressor according to claim 6, wherein a bottom portion of the annular groove (21) is provided with a plurality of oil leakage holes (211), the plurality of oil leakage holes (211) being provided at intervals in a circumferential direction of the annular groove (21).
8. The compressor according to claim 6, wherein the pin structure (22) is a solid structure, or the pin structure (22) is provided with a through hole (221), and an axis of the through hole (221) is arranged in a manner of penetrating along an axial direction of the pin structure (22).
9. Compressor according to claim 6, characterized in that the pin structure (22) has an outer diameter ofWherein,
10. the compressor of claim 8, wherein the pin structure (22) defines a through hole (221), and the through hole (221) has an inner diameter ofWherein,
11. the compressor of claim 6,
the thickness of the groove wall of the annular groove (21) on the side far away from the geometric center of the columnar structure is W1, wherein W1 is more than or equal to 2mm and less than or equal to 5mm, and/or
The depth of the annular groove (21) is L1, the height of the columnar structure is L, and L1/L is more than or equal to 0.5 and less than or equal to 0.9.
12. The compressor as claimed in claim 2, wherein the first connection hole (131) has a hole wall thickness W2, wherein 0.5mm ≦ W2 ≦ 3 mm.
13. A refrigeration apparatus comprising a compressor, wherein the compressor is as claimed in any one of claims 1 to 12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822087244.4U CN209414091U (en) | 2018-12-11 | 2018-12-11 | Compressor and refrigerating plant with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822087244.4U CN209414091U (en) | 2018-12-11 | 2018-12-11 | Compressor and refrigerating plant with it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209414091U true CN209414091U (en) | 2019-09-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822087244.4U Active CN209414091U (en) | 2018-12-11 | 2018-12-11 | Compressor and refrigerating plant with it |
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| Country | Link |
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| CN (1) | CN209414091U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322815A (en) * | 2018-12-11 | 2019-02-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigerating plant with it |
-
2018
- 2018-12-11 CN CN201822087244.4U patent/CN209414091U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109322815A (en) * | 2018-12-11 | 2019-02-12 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and refrigerating plant with it |
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