CN111852821B - Compressor crankshaft connecting rod mechanism, compressor and refrigeration equipment - Google Patents
Compressor crankshaft connecting rod mechanism, compressor and refrigeration equipment Download PDFInfo
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- CN111852821B CN111852821B CN202010753805.9A CN202010753805A CN111852821B CN 111852821 B CN111852821 B CN 111852821B CN 202010753805 A CN202010753805 A CN 202010753805A CN 111852821 B CN111852821 B CN 111852821B
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- connecting rod
- crankshaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0094—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 crankshaft
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
- F04B39/0022—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons piston rods
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/14—Provisions for readily assembling or disassembling
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention relates to a compressor crankshaft connecting rod mechanism, a compressor and refrigeration equipment, wherein the compressor crankshaft connecting rod mechanism comprises a connecting rod and a crankshaft, and the connecting rod is connected to the disk surface of the crankshaft; the connecting rod comprises a first connecting rod, a pin and a second connecting rod, and the first connecting rod and the second connecting rod are detachably connected through the pin; the crankshaft comprises an eccentric crankshaft body and an eccentric shaft, and the eccentric shaft is detachably arranged on the disc surface of the eccentric crankshaft body; each eccentric shaft comprises a mounting part and an eccentric connecting shaft, wherein the eccentric connecting shaft is arranged on one axial side end surface of the mounting part, and a preset interval is reserved between the central shaft of the eccentric connecting shaft and the central shaft of the mounting part. In the crankshaft connecting rod mechanism of the compressor, the crankshaft and the connecting rod are of split type structures which can be spliced, so that the requirement on assembly space is small, a crescent moon groove is not required to be arranged on a compressor cylinder, the perpendicularity error of a cylinder seat cylinder hole and a shaft hole caused by honing the cylinder seat cylinder hole is avoided, the cost is saved, and the working efficiency of the compressor is improved.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to a compressor crankshaft connecting rod mechanism, a compressor and refrigeration equipment.
Background
The compressor is a key part in refrigeration equipment, and along with the continuous improvement of energy-saving and environment-friendly requirements, people put forward the compressor to have small volume, energy conservation and electricity saving, and simultaneously have higher refrigeration efficiency. In a compressor, a crankshaft is usually driven to rotate by a motor, and then a crankshaft connecting rod mechanism connected with the crankshaft drives a suction cylinder of the compressor to drive heat energy to flow, so that heat is transferred from one position to another.
Most of the traditional piston compressors adopt an integral connecting rod structure, and in order to facilitate assembly, a crescent groove is arranged on a cylinder seat of the piston compressor, and an assembly space is provided for a crankshaft connecting rod mechanism through the crescent groove. However, such measures increase the material cost and the machining cost of the cylinder block, and the cylinder block reduces the perpendicularity of the cylinder block cylinder bore and the shaft bore during the machining honing process, so that the abrasion and the power consumption of the piston are increased during the operation of the compressor. Furthermore, the effective suction volume of the cylinder in the cylinder block is reduced, reducing the refrigeration efficiency of the compressor.
Disclosure of Invention
The application provides a compressor crankshaft connecting rod mechanism, compressor and refrigeration plant to the shortcoming of current mode for solve the integral connecting rod mechanism that prior art exists, because need set up the crescent moon groove that the assembly was used and the lower technical problem of refrigeration efficiency that leads to.
In a first aspect, embodiments of the present application provide a compressor crankshaft connecting rod mechanism comprising a connecting rod and a crankshaft, the connecting rod being connected to a disk face of the crankshaft;
the connecting rod comprises a first connecting rod, a pin and a second connecting rod, and the first connecting rod and the second connecting rod are detachably connected through the pin;
the crankshaft comprises an eccentric crankshaft body and an eccentric shaft, and the eccentric shaft is detachably arranged on the disc surface of the eccentric crankshaft body;
the disk surface of the eccentric crankshaft body is provided with a mounting groove;
each eccentric shaft comprises a mounting part and an eccentric connecting shaft, wherein the eccentric connecting shaft is arranged on one axial side end surface of the mounting part, and a preset interval is reserved between the central shaft of the eccentric connecting shaft and the central shaft of the mounting part; the installation part is matched with the installation groove, and is arranged in the installation groove;
the second connecting rod is sleeved on the eccentric connecting shaft and can rotate relative to the eccentric connecting shaft at the connecting position.
With reference to the first aspect and the foregoing implementation manner, in some implementation manners of the first aspect, the first connecting rod includes a first shaft sleeve and a hollow connecting rod, one end of the hollow connecting rod is integrally connected with the first shaft sleeve, and an axial direction of the hollow connecting rod is perpendicular to an axial direction of the first shaft sleeve; the hollow connecting rod is provided with a butt joint groove with a preset depth, and the side surface of the hollow connecting rod is provided with a first pin hole which penetrates through the hollow connecting rod;
the second connecting rod comprises a second sleeve and a butt joint part, and the butt joint part is connected with the butt joint groove in a matching way; the butt joint part is provided with a second pin hole;
the pin is inserted into the first pin hole and the second pin hole;
the second connecting rod is pivoted with the eccentric connecting shaft through the second sleeve.
With reference to the first aspect and the foregoing implementation manner, in certain implementation manners of the first aspect, the second connecting rod further includes a connecting portion, one end of the connecting portion is connected to the docking portion, and the other end of the connecting portion is connected to the second sleeve; the butt joint part is smaller than the connecting part.
With reference to the first aspect and the foregoing implementation manner, in certain implementation manners of the first aspect, a cross-sectional shape of the docking groove along a radial direction of the hollow connecting rod is a circle, and the docking portion is a cylinder.
With reference to the first aspect and the foregoing implementation manner, in some implementation manners of the first aspect, a first positioning block is disposed on an end surface of the hollow connecting rod, which is far away from the first shaft sleeve, and a second positioning block is disposed on a peripheral surface of the abutting portion; the first positioning block and the second positioning block are abutted against each other in the radial direction of the hollow connecting rod, and the second positioning block is abutted against the end face, far away from the first shaft sleeve, of the hollow connecting rod.
With reference to the first aspect and the foregoing implementation manner, in certain implementation manners of the first aspect, a cross-sectional shape of the mounting groove is an ellipse, and a cross-sectional shape of the mounting portion is an ellipse.
With reference to the first aspect and the foregoing implementation manner, in certain implementation manners of the first aspect, a threaded hole is formed from a side end surface of the eccentric crankshaft body to a side surface of an inner cavity of the mounting groove; and a blind hole is formed in the peripheral side of the mounting part, and corresponds to the threaded hole.
With reference to the first aspect and the foregoing implementation manners, in some implementation manners of the first aspect, the mounting portion is connected with the mounting groove in an interference fit manner.
In a second aspect, embodiments of the present application provide a compressor comprising a compressor crankshaft linkage as described in the first aspect of the present application.
In a third aspect, embodiments of the present application provide a refrigeration apparatus including a compressor as described in the second aspect of the present application.
The technical scheme provided by the embodiment of the invention has the following beneficial technical effects:
the crankshaft connecting rod mechanism of the compressor provided by the invention adopts the connecting rod with the split structure and the crankshaft with the split structure, the first connecting rod and the second connecting rod are directly and respectively butted with respective connecting parts during assembly, then the first connecting rod and the second connecting rod are butted, the connecting rod can be assembled into the cylinder body of the compressor cylinder, then the second connecting rod is connected with the eccentric shaft, and then the eccentric shaft is assembled onto the crankshaft body, so that the assembly of the whole crankshaft connecting rod mechanism can be completed, a crescent groove for reducing the cylinder volume is not required to be arranged on the compressor cylinder, the perpendicularity errors of the cylinder seat cylinder hole and the shaft hole caused by honing the cylinder hole of the cylinder seat are avoided, the cost is saved, and the working efficiency of the compressor is improved.
Additional aspects and advantages of the present application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
FIG. 1 is a schematic view of a partial assembly of a compressor crankshaft connecting rod mechanism in accordance with an embodiment of the present invention;
FIG. 2 is a schematic diagram of an assembly structure of a connecting rod according to an embodiment of the invention;
FIG. 3 is a schematic view of an assembled structure of a crankshaft according to an embodiment of the present invention;
FIG. 4 is a schematic view of a first link structure according to an embodiment of the present invention;
FIG. 5 is a schematic view of a second link structure according to an embodiment of the present invention;
FIG. 6 is a schematic view of an eccentric crankshaft body according to an embodiment of the present invention;
fig. 7 is a schematic structural view of an eccentric shaft according to an embodiment of the present invention.
Detailed Description
In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. The figures show possible embodiments of the invention. This invention may, however, be embodied in many different forms and is not limited to the embodiments described herein with reference to the accompanying drawings. The embodiments described by reference to the drawings are exemplary for a more thorough understanding of the present disclosure and should not be construed as limiting the present invention. Furthermore, if detailed descriptions of known techniques are unnecessary for the illustrated features of the present invention, such technical details may be omitted.
It will be understood by those skilled in the relevant art that all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs unless defined otherwise. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It should be understood that the term "and/or" as used herein includes all or any element and all combination of one or more of the associated listed items.
In the prior art, when a crankshaft connecting rod mechanism is installed in a compressor, a crescent groove is required to be arranged near the end face of one side of a cylinder of the compressor, and a connecting rod can be placed in a piston through the crescent groove, so that the assembly of the crankshaft connecting rod on a cylinder seat of the compressor is realized. The crescent groove vertically extends from the outer side wall of the cylinder to the inner side wall of the cylinder, so that the working volume of the cylinder can be reduced, the working stroke of a cylinder piston is reduced, and the working efficiency is adversely affected. In addition, the additional processing increases the cost of the mold or the processing cost, and the cylinder may be deformed in size during the processing.
The invention provides a compressor crankshaft connecting rod mechanism and a compressor, and aims to solve the technical problems in the prior art.
The following describes the technical solution of the present invention and how the technical solution solves the technical problems described above with specific examples.
Embodiments of the first aspect of the present application provide a compressor crankshaft connecting rod mechanism, as shown in fig. 1-3, comprising a connecting rod 100 and a crankshaft 200, wherein the connecting rod 100 is connected to a disk surface of the crankshaft 200. The link 100 includes a first link 110, a pin 130, and a second link 120, the first link 110 and the second link 120 being detachably connected by the pin 130. The crankshaft 200 includes an eccentric crankshaft body 210 and an eccentric shaft 220, the eccentric shaft 220 being detachably mounted on a disk surface of the eccentric crankshaft body 210; the eccentric crankshaft body 210 has a mounting groove 211 formed in a disk surface thereof.
Each eccentric shaft 220 includes a mounting portion 221 and an eccentric connecting shaft 222, the eccentric connecting shaft 222 being disposed on one axial side end surface of the mounting portion 221 with a predetermined interval between a central axis of the eccentric connecting shaft 222 and a central axis of the mounting portion 221; the mounting portion 221 is matched with the mounting groove 211, and the mounting portion 221 is provided in the mounting groove 211. The second connecting rod 120 is sleeved on the eccentric connecting shaft 222 and can rotate relative to the eccentric connecting shaft 222 at the joint.
The crankshaft and connecting rod mechanism of the compressor provided by the invention adopts the connecting rod 100 with a split structure and the crankshaft 200 with a split structure, when in assembly, the first connecting rod 110 and the second connecting rod 120 are directly and respectively in butt joint with respective connecting parts, then the first connecting rod 110 and the second connecting rod 120 are in butt joint, the connecting rod 100 can be assembled into the cylinder body of the compressor cylinder, then the second connecting rod 120 is connected with the eccentric shaft 220, and then the eccentric shaft 220 is assembled onto the crankshaft body 210, so that the assembly of the whole crankshaft and connecting rod mechanism can be completed, a crescent groove for reducing the cylinder volume is not required to be arranged on the compressor cylinder, the perpendicularity error of a cylinder seat cylinder hole and a shaft hole caused by honing a cylinder seat cylinder hole is avoided, the cost is saved, and the working efficiency of the compressor is improved.
Alternatively, as shown in FIG. 2, link 100 includes a first link 110, a pin 130, and a second link 120. The first connecting rod 110 comprises a first shaft sleeve 111 and a hollow connecting rod 112, one end of the hollow connecting rod 112 is integrally connected with the first shaft sleeve 111, and the axial direction of the hollow connecting rod 112 is perpendicular to the axial direction of the first shaft sleeve 111; the hollow connecting rod 112 is provided with a docking groove 112a of a predetermined depth, and a first pin hole 112b penetrating through a side surface of the hollow connecting rod 112. The second connecting rod 120 comprises a second shaft sleeve 121 and a butt joint part 122, and the butt joint part 122 is in matched connection with the butt joint groove 112 a; the abutting portion 122 is provided with a second pin hole 122a. The pin 130 is inserted into the first pin hole 112b and the second pin hole 122a.
As shown in fig. 2 and 4, through the hollow connecting rod 112 and the butt joint 122 provided on the first and second connecting rods 110 and 120, respectively, by inserting the butt joint 122 into the butt joint groove 112a and aligning the first and second pin holes 112b and 122a of the first and second connecting rods 110 and 120, and inserting the pin 130, the compressor crank-link mechanism can be split into two short parts, and can be synthesized into one crank-link mechanism having a size meeting the requirement, and power is transmitted with the pin 130 fixed. When the crankshaft rod mechanism of the compressor needs to be assembled between the crankshaft 200 and the cylinder, the crankshaft rod mechanism of the compressor is split into two parts, the first connecting rod 110 is firstly connected with the piston in the cylinder, and the compressor can directly enter the cylinder to be assembled and connected with the piston without a crescent groove which is originally arranged. The second connecting rod 120 is then connected to the crankshaft 200, and the connection point of the crankshaft 200 to the second connecting rod 120 is moved to the maximum position from the cylinder. Then, the butt groove 112a of the first connecting rod 110 is correspondingly connected with the butt portion 122 of the second connecting rod 120, and the pin 130 is mounted, so that the crankshaft 200 and the piston in the cylinder can be connected through the compressor crankshaft connecting rod mechanism.
Optionally, in an implementation manner of the embodiment of the first aspect, as shown in fig. 5, the second connecting rod 120 further includes a connecting portion 123, where one end of the connecting portion 123 is connected to the docking portion 122, and the other end is connected to the second sleeve 121; the abutting portion 122 is smaller than the connecting portion 123. By providing the connection portion 123, an assembly position mark is provided for the butt joint of the first link 110 and the second link 120, and since the size of the connection portion 123 is larger than that of the butt joint portion 122, when the butt joint portion 122 is inserted into the butt joint groove 112a, it is blocked at the connection portion 123 and cannot further enter into the butt joint groove 112a, and it is possible to facilitate the determination of the assembly size. It is possible that the connection 123 may be realized by providing a protruding block directly at a certain position of the docking portion 122.
Alternatively, in combination with the above-described implementation, in some implementations of the first aspect embodiment, as shown in fig. 2 and 4, the cross-sectional shape of the docking groove 112a along the radial direction of the hollow connecting rod 112 is circular, and the docking portion 122 is cylindrical. The cross-sectional shape of the abutting groove 112a and/or the abutting portion 122 may be circular, triangular, rectangular or pentagonal, etc., and may be determined according to practical situations, and the use of a circular shape is advantageous for processing.
Alternatively, in combination with the foregoing implementation manner, in other implementation manners of the embodiment of the first aspect, as shown in fig. 2 and fig. 5, a first positioning block 112c is provided on an end surface of the hollow connecting rod 112 away from the first shaft sleeve 111, and a second positioning block 122b is provided on a peripheral side surface of the abutting portion 122; the first positioning block 112c and the second positioning block 122b abut against each other in the radial direction of the hollow connecting rod 112, and the second positioning block 122b abuts against an end surface of the hollow connecting rod 112 remote from the first boss 111. The first pin hole 112b and the second pin hole 122a are respectively provided in the radial direction of the first link 110 and the second link 120, and besides the abutting positions of the first link 110 and the second link 120 in the axial direction, the abutting positions of the first link and the second link in the radial direction need to be accurately grasped, and the pin 130 can be smoothly inserted only if the positions of the first link and the second link in the radial direction are well determined. In order to ensure that the position butt joint is realized quickly in the radial direction, the first positioning block 112c and the second positioning block 122b are preset, and when the first positioning block 112c and the second positioning block 122b are mutually attached and abutted, the pin holes on the two connecting rods are indicated to be in butt joint. In the actual manufacturing process, it is necessary to accurately determine the positional relationship between the first positioning block 112c and the first pin hole 112b, and the positional relationship between the second positioning block 122b and the second pin hole 122a.
As described above, the crankshaft 200 provided in the embodiment of the first aspect of the present application specifically includes the eccentric crankshaft body 210 and the eccentric shaft 220, as shown in fig. 3, 6 and 7, the central axis of the eccentric connecting shaft 222 and the central axis of the mounting portion 221 are in the same plane and parallel to each other, and there is a certain interval between them, the interval can be specifically set according to actual needs, and the sizes of the preset intervals are different for different types of compressors.
The compressor crankshaft 200 provided in the above embodiment of the present application is a separable and assemblable crankshaft 200, in which the eccentric crankshaft body 210 is provided with the concave mounting groove 211, instead of the convex mounting protrusion, so that the crankshaft connecting rod mechanism can be put into the compressor cylinder when being mounted, and the process can be easily implemented without additionally providing the crescent groove on the compressor cylinder, that is, without reserving the assembly space for the piston connecting rod 100 mechanism, because there is no blocking of the mounting protrusion on the eccentric crankshaft body 210. From this, compare in ordinary compressor bent axle 200, the compressor bent axle 200 that this application provided is more favorable to the assembly, and need not to set up the crescent moon groove, can improve the refrigeration efficiency of compressor by a wide margin.
Furthermore, the eccentric shaft 220 of the present application is not integrally formed with the eccentric crankshaft body 210, and the eccentric connecting shaft 222 on the eccentric shaft 220 can be specifically adjusted according to actual needs, and each size of the eccentric shaft 220 corresponds to a type of compressor, specifically can be a piston type compressor, and only the processing size of the eccentric shaft 220 needs to be adjusted, without setting a new mold for the eccentric crankshaft body 210. Therefore, the compressor crankshaft 200 has good adaptability, can save the die opening cost and has higher use flexibility.
Alternatively, in certain implementations of the first aspect of the present application, the cross-sectional shape of the mounting groove 211 is elliptical and the cross-sectional shape of the mounting portion 221 is elliptical. By adopting the oval cross-sectional shape, the eccentric shaft 220 can be fixedly abutted according to the set position, so that the eccentric shaft 220 is ensured to be accurately installed and cannot autorotate in the running process, and the position deviation caused by autorotation cannot occur. Of course, the cross-sectional shape of the mounting groove 211 may be other shapes, such as triangle, rectangle, etc., but oval shape is more convenient for manufacturing.
Optionally, with reference to the first aspect and the foregoing implementation manner, in some implementation manners of the first aspect, a threaded hole is formed from a side end surface of the eccentric crankshaft body 210 to an inner cavity side surface of the mounting groove 211; the mounting portion 221 has a blind hole formed on the peripheral side thereof, the blind hole corresponding to the threaded hole. In order to fix the eccentric shaft 220 mounted on the eccentric crankshaft body 210 in position during operation, the structural strength of the eccentric shaft and the eccentric crankshaft body is ensured to meet the design requirement and the service life requirement, and the connecting structure of the eccentric shaft and the eccentric crankshaft body is ensured to be firm. Through the butt-jointed blind hole and the threaded hole, the eccentric shaft 220 can be firmly fixed on the eccentric crankshaft body 210 by adding a proper screw into the blind hole.
Alternatively, in combination with the first aspect and the foregoing implementation manner, in some implementation manners of the embodiment of the first aspect of the present application, the mounting portion 221 is connected with the mounting groove 211 in an interference fit manner. In addition to the detachable connection mentioned in the foregoing implementation manner, the mounting portion 221 and the mounting groove 211 may be connected by adopting an interference fit mechanical connection manner, and the eccentric shaft 220 and the eccentric crankshaft body 210 may be firmly connected.
Based on the same technical concept, embodiments of the second aspect of the present application provide a compressor including any one of the compressor crankshaft connecting rod mechanisms as described in the first aspect of the present application. It should be noted that the present application is mainly focused on the improvement of the crankshaft and connecting rod mechanism in the compressor, and does not indicate that the compressor only includes one component of the crankshaft and connecting rod mechanism of the compressor, and further includes other components such as a cylinder block, a piston, and a housing, and since the other components are known to those skilled in the relevant arts, no more detailed description is given.
In a third aspect, the present invention provides a refrigeration apparatus, which uses the compressor provided in the embodiment of the second aspect of the present invention. The refrigeration equipment can be household appliances such as a refrigerator, a freezer, an ice cream machine or a cold drink machine, and can also be large-scale equipment such as a mobile freezer or a refrigeration warehouse.
Those of skill in the art will appreciate that the various operations, methods, steps in the flow, actions, schemes, and alternatives discussed in the present application may be alternated, altered, combined, or eliminated. Further, other steps, means, or steps in a process having various operations, methods, or procedures discussed in this application may be alternated, altered, rearranged, split, combined, or eliminated. Further, steps, measures, schemes in the prior art with various operations, methods, flows disclosed in the present application may also be alternated, altered, rearranged, decomposed, combined, or deleted.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.
In the description of the present specification, a particular feature, structure, material, or characteristic may be combined in any suitable manner in one or more embodiments or examples.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, these steps are not necessarily performed in order as indicated by the arrows. The steps are not strictly limited in order and may be performed in other orders, unless explicitly stated herein. Moreover, at least some of the steps in the flowcharts of the figures may include a plurality of sub-steps or stages that are not necessarily performed at the same time, but may be performed at different times, the order of their execution not necessarily being sequential, but may be performed in turn or alternately with other steps or at least a portion of the other steps or stages.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for a person skilled in the art, several improvements and modifications can be made without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.
Claims (7)
1. The crankshaft connecting rod mechanism of the compressor is characterized by comprising a connecting rod and a crankshaft, wherein the connecting rod is connected to the disk surface of the crankshaft;
the connecting rod comprises a first connecting rod, a pin and a second connecting rod, and the first connecting rod and the second connecting rod are detachably connected through the pin; the first connecting rod comprises a first shaft sleeve and a hollow connecting rod, one end of the hollow connecting rod is integrally connected with the first shaft sleeve, and the axial direction of the hollow connecting rod is perpendicular to the axial direction of the first shaft sleeve; the hollow connecting rod is provided with a butt joint groove with a preset depth, and the side surface of the hollow connecting rod is provided with a first pin hole which penetrates through the hollow connecting rod; the second connecting rod comprises a second sleeve and a butt joint part, and the butt joint part is connected with the butt joint groove in a matching way; the butt joint part is provided with a second pin hole; the pin is inserted into the first pin hole and the second pin hole;
the crankshaft comprises an eccentric crankshaft body and an eccentric shaft, and the eccentric shaft is detachably arranged on the disc surface of the eccentric crankshaft body;
the disk surface of the eccentric crankshaft body is provided with a mounting groove;
each eccentric shaft comprises a mounting part and an eccentric connecting shaft, wherein the eccentric connecting shaft is arranged on one axial side end surface of the mounting part, and a preset interval is reserved between the central shaft of the eccentric connecting shaft and the central shaft of the mounting part; the installation part is matched with the installation groove, and is arranged in the installation groove; the second connecting rod is pivoted with the eccentric connecting shaft through the second sleeve;
the second connecting rod is sleeved on the eccentric connecting shaft and can rotate relative to the eccentric connecting shaft at the connecting position, a first positioning block is arranged on the end face, far away from the first shaft sleeve, of the hollow connecting rod, and a second positioning block is arranged on the peripheral side surface of the abutting part; the first positioning block and the second positioning block are mutually abutted against each other in the radial direction of the hollow connecting rod, the second positioning block is abutted against the end face, far away from the first shaft sleeve, of the hollow connecting rod, and the mounting portion is connected with the mounting groove in an interference fit mode.
2. The compressor crankshaft linkage of claim 1, wherein the second connecting rod further comprises a connecting portion having one end connected to the docking portion and the other end connected to the second bushing; the butt joint part is smaller than the connecting part.
3. The compressor crankshaft connecting rod mechanism of claim 1, wherein the cross-sectional shape of the abutting groove along the radial direction of the hollow connecting rod is circular, and the abutting portion is cylindrical.
4. The compressor crankshaft connecting rod mechanism of claim 1 wherein the mounting groove has an oval cross-sectional shape and the mounting portion has an oval cross-sectional shape.
5. The compressor crankshaft connecting rod mechanism according to claim 1, wherein a threaded hole is formed from a side end surface of the eccentric crankshaft body to a side surface of an inner cavity of the mounting groove; and a blind hole is formed in the peripheral side of the mounting part, and corresponds to the threaded hole.
6. A compressor comprising the compressor crankshaft connecting rod mechanism according to any one of claims 1 to 5.
7. A refrigeration apparatus comprising the compressor of claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010753805.9A CN111852821B (en) | 2020-07-30 | 2020-07-30 | Compressor crankshaft connecting rod mechanism, compressor and refrigeration equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010753805.9A CN111852821B (en) | 2020-07-30 | 2020-07-30 | Compressor crankshaft connecting rod mechanism, compressor and refrigeration equipment |
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| CN111852821A CN111852821A (en) | 2020-10-30 |
| CN111852821B true CN111852821B (en) | 2023-08-04 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060002165A (en) * | 2004-07-01 | 2006-01-09 | 삼성광주전자 주식회사 | Hermetic compressor |
| KR20080013143A (en) * | 2006-08-07 | 2008-02-13 | 삼성광주전자 주식회사 | Crankshaft for compressor and making method the same |
| CN101427027A (en) * | 2006-04-26 | 2009-05-06 | Lg电子株式会社 | Detachable connecting rod compressor having the same |
| CN204941821U (en) * | 2015-09-01 | 2016-01-06 | 安徽美芝制冷设备有限公司 | Compressor crank shaft and the compressor with it |
-
2020
- 2020-07-30 CN CN202010753805.9A patent/CN111852821B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20060002165A (en) * | 2004-07-01 | 2006-01-09 | 삼성광주전자 주식회사 | Hermetic compressor |
| CN101427027A (en) * | 2006-04-26 | 2009-05-06 | Lg电子株式会社 | Detachable connecting rod compressor having the same |
| KR20080013143A (en) * | 2006-08-07 | 2008-02-13 | 삼성광주전자 주식회사 | Crankshaft for compressor and making method the same |
| CN204941821U (en) * | 2015-09-01 | 2016-01-06 | 安徽美芝制冷设备有限公司 | Compressor crank shaft and the compressor with it |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111852821A (en) | 2020-10-30 |
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