CN116517808A - Eccentric piston connecting rod assembly and four-cylinder air compressor - Google Patents

Eccentric piston connecting rod assembly and four-cylinder air compressor Download PDF

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Publication number
CN116517808A
CN116517808A CN202310670533.XA CN202310670533A CN116517808A CN 116517808 A CN116517808 A CN 116517808A CN 202310670533 A CN202310670533 A CN 202310670533A CN 116517808 A CN116517808 A CN 116517808A
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CN
China
Prior art keywords
eccentric
rotating shaft
cylinder
piston
connecting rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310670533.XA
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Chinese (zh)
Inventor
陈三海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN202310670533.XA priority Critical patent/CN116517808A/en
Publication of CN116517808A publication Critical patent/CN116517808A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • 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
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • 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
    • F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
    • F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
    • 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
    • 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
    • F04B39/0027—Pulsation and noise damping means
    • F04B39/0083—Pulsation and noise damping means using blow off silencers
    • 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
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • 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
    • F04B39/06—Cooling; Heating; Prevention of freezing
    • F04B39/066—Cooling by ventilation
    • 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
    • F04B39/10—Adaptations or arrangements of distribution members
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/121—Casings
    • 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
    • F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
    • F04B39/122—Cylinder block
    • 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
    • F04B41/00—Pumping installations or systems specially adapted for elastic fluids
    • F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
    • 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
    • F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
    • F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
    • F04B9/04—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms
    • F04B9/045—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical the means being cams, eccentrics or pin-and-slot mechanisms the means being eccentrics
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressor (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

The invention discloses an eccentric piston connecting rod assembly and a four-cylinder compressor, which comprise a rotating shaft and four eccentric piston assemblies respectively sleeved on two ends of the rotating shaft, wherein the rotating shaft is formed by integrating a rotor rotating shaft part, two first eccentric rotating shaft parts and two second eccentric rotating shaft parts, the diameters of the rotor rotating shaft part, the first eccentric rotating shaft parts and the second eccentric rotating shaft parts are sequentially reduced, the two first eccentric rotating shaft parts are respectively positioned on two ends of the rotor rotating shaft part, the second eccentric rotating shaft parts are positioned at the outer ends of the first eccentric rotating shaft parts, the four eccentric piston assemblies are respectively sleeved on the two first eccentric rotating shaft parts and the two second eccentric rotating shaft parts, the rotor rotating shaft parts are directly arranged at the axle center of a stator, the transmission efficiency of the rotating shaft in a stepped manner is high, the energy loss in the transmission process is small, compared with the prior art, a gear box is removed, and the large cost is saved.

Description

Eccentric piston connecting rod assembly and four-cylinder air compressor
Technical Field
The invention relates to the technical field of air compressors, in particular to an eccentric piston connecting rod assembly and a four-cylinder air compressor.
Background
An air compressor is a device for compressing a gas. Air compressors are similar to water pumps in construction and can be classified into three major categories according to the principle of operation: volumetric, dynamic (speed or turbine), thermodynamic compressors; the performance can be divided into: low noise, variable frequency, explosion-proof, etc. The number of general air cylinders of the existing air compressor is 1-2, the air storage speed is seriously slow, the working efficiency is influenced, the machine volume is large, and the transportation is inconvenient.
Later Chinese patent with publication number CN110345043A discloses an eight-cylinder air compressor, which comprises a double-shaft motor, wherein the double-shaft motor comprises a stator and rotor shafts arranged at two ends of the stator, and the rotor shafts at two sides are respectively connected with gearboxes with the same structure; the gear box comprises a driving gear, a transmission gear and output gears, wherein the driving gear is fixed at the bottom of the gear box and is connected with the rotor shaft, the transmission gear is arranged in the middle of the gear box and is meshed with the driving gear, the two output gears are symmetrically arranged at the top of the gear box and are respectively meshed with the transmission gear, the center of each output gear is provided with an output shaft in a penetrating way, and the two ends of each output shaft are respectively provided with eccentric wheels; and a cylinder is correspondingly arranged above each eccentric wheel, and comprises a cylinder box, a connecting rod piston and an eccentric wheel bearing, wherein the top of the connecting rod piston is movably arranged on the cylinder box, and the bottom of the connecting rod piston is connected with the eccentric wheels through the eccentric wheel bearing. However, the eight-cylinder air compressor comprises a gear box, and is complex in structure and high in production cost.
Those skilled in the art have therefore focused on developing a simple and compact eccentric piston connecting rod assembly and four-cylinder air compressor.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, the present invention is directed to providing an eccentric piston connecting rod assembly and a four-cylinder air compressor that are simple and compact in structure.
In order to achieve the above purpose, the invention provides an eccentric piston connecting rod assembly, which comprises a rotating shaft and four eccentric piston assemblies respectively sleeved at two ends of the rotating shaft, wherein the rotating shaft is integrally formed by a rotor rotating shaft part, two first eccentric rotating shaft parts and two second eccentric rotating shaft parts, the diameters of the rotor rotating shaft part, the first eccentric rotating shaft parts and the second eccentric rotating shaft parts are sequentially reduced, the two first eccentric rotating shaft parts are respectively positioned at two ends of the rotor rotating shaft part, the second eccentric rotating shaft parts are positioned at the outer ends of the first eccentric rotating shaft parts, and the four eccentric piston assemblies are respectively sleeved on the two first eccentric rotating shaft parts and the two second eccentric rotating shaft parts.
Further, the eccentric piston assembly comprises a piston, a connecting rod and an eccentric wheel sleeve which are integrally formed from top to bottom, the eccentric wheel sleeve is sleeved on an eccentric wheel, and the eccentric wheel is sleeved on the rotating shaft; and an eccentric balancing weight next to the eccentric piston assembly is sleeved on the rotating shaft.
Further, a piston apron is also arranged at the top of the piston.
Furthermore, the front surface and the back surface of the connecting rod are respectively provided with two parallel weight reduction grooves which are concave inwards, and reinforcing ribs are arranged between the two weight reduction grooves.
Further, the outer end of the second eccentric rotary shaft part is also integrally extended with a fan rotary shaft part, and the diameter of the fan rotary shaft part is smaller than that of the second eccentric rotary shaft part.
The invention also provides a four-cylinder compressor, which comprises the eccentric piston connecting rod assembly and a stator, wherein the rotor rotating shaft part is inserted into the axle center of the stator, the piston of the eccentric piston assembly stretches into a cylinder, the cylinder is arranged in a cylinder accommodating structure, the eccentric piston assembly and the stator are arranged in a shell, and the cylinder accommodating structure is arranged at the top of the shell.
Further, the cylinder accommodating structure comprises a gas storage box cover, a cylinder pressing plate, a first cylinder fixing frame and a second cylinder fixing frame which are sequentially arranged in a stacked mode from top to bottom, and the second cylinder fixing frame is arranged at the top of the shell.
Further, the gas storage box cover is provided with a gas outlet hole and a gas inlet hole which are communicated with the outside, and the cylinder pressing plate is provided with two groups of gas inlet valves and gas outlet valves; and a cylinder sealing ring is arranged between the gas storage box cover and the cylinder pressing plate, and the gas inlet valve and the gas outlet valve are communicated with the inside of the gas storage box cover and the inside of the cylinder.
Further, the side faces of the first cylinder fixing frame and the second cylinder fixing frame are respectively provided with a penetrating radiating hole.
Furthermore, a plurality of heat dissipation plates are further arranged at the top of the gas storage box cover.
Further, an air inlet silencer is arranged in the air outlet hole.
The beneficial effects of the invention are as follows: the invention relates to an eccentric piston connecting rod assembly and a four-cylinder compressor, which comprises a rotating shaft and four eccentric piston assemblies respectively sleeved at two ends of the rotating shaft, wherein the rotating shaft is formed by integrating a rotor rotating shaft part, two first eccentric rotating shaft parts and two second eccentric rotating shaft parts, the diameters of the rotor rotating shaft part, the first eccentric rotating shaft parts and the second eccentric rotating shaft parts are sequentially reduced, the two first eccentric rotating shaft parts are respectively positioned at two ends of the rotor rotating shaft part, the second eccentric rotating shaft parts are positioned at the outer ends of the first eccentric rotating shaft parts, the four eccentric piston assemblies are respectively sleeved on the two first eccentric rotating shaft parts and the two second eccentric rotating shaft parts, the rotor rotating shaft parts are directly arranged at the axle center of a stator, the transmission efficiency of the stepped rotating shaft is high, the energy loss in the transmission process is small, and compared with the prior art, a gear box is omitted, and the cost is greatly saved.
Drawings
FIG. 1 is a schematic illustration of the construction of an eccentric piston connecting rod assembly of the present invention;
FIG. 2 is a schematic view of the structure of the spindle of the present invention;
FIG. 3 is a schematic view of the structure of the four-cylinder compressor of the present invention;
FIG. 4 is a schematic view of the structure of a gas storage tank cover of the present invention;
FIG. 5 is a side view of the structure of the four-cylinder compressor of the present invention;
FIG. 6 is a cross-sectional view taken at A-A of FIG. 5;
fig. 7 is a structural exploded view of the four-cylinder compressor of the present invention.
Detailed Description
The present invention will be further described with reference to the drawings and examples, and it should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific manner, and thus should not be construed as limiting the present invention. The terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 1 and 2, an eccentric piston connecting rod assembly comprises a rotating shaft 1 and four eccentric piston assemblies 2 respectively sleeved at two ends of the rotating shaft 1, wherein the rotating shaft 1 is formed by integrating a rotor rotating shaft part 11, two first eccentric rotating shaft parts 12 and two second eccentric rotating shaft parts 13, the diameters of the rotor rotating shaft part 11, the first eccentric rotating shaft parts 12 and the second eccentric rotating shaft parts 13 are sequentially reduced, the two first eccentric rotating shaft parts 12 are respectively positioned at two ends of the rotor rotating shaft part 11, the second eccentric rotating shaft parts 13 are positioned at the outer ends of the first eccentric rotating shaft parts 12, the four eccentric piston assemblies are respectively sleeved on the two first eccentric rotating shaft parts 12 and the two second eccentric rotating shaft parts 13, the rotor rotating shaft parts are directly installed at the axle center of a stator, the transmission efficiency of the rotating shaft in a stepped manner is high, the energy loss in the transmission process is small, and compared with the prior art, the gear box is omitted by adopting a motor to directly drive the eccentric piston assemblies, and the cost is saved.
In this embodiment, the eccentric piston assembly includes a piston 21, a connecting rod 22 and an eccentric wheel sleeve 23 integrally formed from top to bottom, the eccentric wheel sleeve 23 is sleeved on an eccentric wheel 24, and the eccentric wheel 24 is sleeved on the rotating shaft 1; the rotating shaft 1 is also sleeved with an eccentric balancing weight 25 adjacent to the eccentric piston assembly, and the eccentric balancing weight 25 and the adjacent eccentric piston assembly are sleeved on an eccentric rotating shaft part with the same diameter, so that stable operation of the eccentric piston assembly is ensured.
The front and back sides of the connecting rod 22 are respectively provided with two parallel weight-reducing grooves 27 which are concave inwards, a reinforcing rib 28 is arranged between the two weight-reducing grooves 27, and the overall structural strength is maintained while the weight is reduced.
The outer end of the second eccentric rotary shaft portion 13 is further integrally extended with a fan rotary shaft portion 14, the diameter of the fan rotary shaft portion 14 is smaller than that of the second eccentric rotary shaft portion 13, the fan rotary shaft portion 14 is used for installing a fan 4, and the fan 4 cools the lower ends of the housing 7 and the eccentric piston assembly 2.
As shown in fig. 1 to 7, a four-cylinder compressor comprises the eccentric piston connecting rod assembly, and further comprises a stator 3, wherein the rotor rotating shaft part 11 is inserted into the axle center of the stator 3, a piston 21 of the eccentric piston assembly 2 extends into a cylinder 5, the cylinder 5 is arranged in a cylinder accommodating structure 6, the eccentric piston assembly 2 and the stator 3 are arranged in a shell 7, the cylinder accommodating structure 6 is arranged at the top of the shell 7, a piston apron 26 is further arranged at the top of the piston 21, and the piston apron 26 is in sealing connection with the interior of the cylinder 5.
In this embodiment, the cylinder accommodating structure 6 includes a gas storage cover 61, a cylinder pressing plate 62, a first cylinder fixing frame 63 and a second cylinder fixing frame 64 which are sequentially stacked from top to bottom, the second cylinder fixing frame 64 is mounted on the top of the housing 7, a plurality of threaded holes 641 are provided at the edge of the second cylinder fixing frame 64, and the gas storage cover 61, the cylinder pressing plate 62 and the first cylinder fixing frame 63 are respectively provided with a first through hole 613, a second through hole 624 and a third through hole 631 coaxial with the threaded holes 641, and the threaded holes 641 are connected with bolts penetrating the first through hole 613, the second through hole 614 and the third through hole 615; the top of the shell 7 is provided with a mounting groove 71, and the bottom of the second cylinder fixing frame 64 is provided with a fixing strip 642 which is embedded in the mounting groove 71 and in interference fit; the shell 7 is formed by assembling a first fan cover 72, a first eccentric piston cover 73, a motor cover 74, a second eccentric piston cover 75 and a second fan cover 76 which are transversely connected, and is also connected in a bolt condensation mode; the whole device has simple structure and is convenient to assemble, disassemble and maintain.
The gas storage box cover 61 is provided with a gas outlet hole 611 and a gas inlet hole 612 which are communicated with the outside, a gas inlet silencer is arranged in the gas outlet hole 611, and the cylinder pressing plate 62 is provided with two groups of gas inlet valves 621 and gas outlet valves 623; an air cylinder sealing ring 65 is arranged between the air storage box cover 61 and the air cylinder pressing plate 62, an air storage cavity 616 is formed between the air storage box cover 61 and the air cylinder pressing plate 62, and the air inlet valve 621 and the air outlet valve 623 are communicated with the inside of the air storage cavity 616 and the inside of the air cylinder 5.
In order to prolong the service life of the device and reduce the working temperature of the device, the side surfaces of the first cylinder fixing frame 63 and the second cylinder fixing frame 64 are respectively provided with a penetrating radiating hole 66, cold air entering from the radiating holes 66 radiates heat and cools the cylinder 5, the top of the air storage box cover 61 is also provided with a plurality of radiating plates 67, the radiating plates 67 radiate heat and cool the air storage box cover 61, the fan rotating shaft part 14 is provided with a fan 4, and the fan 4 cools the lower ends of the shell 7 and the eccentric piston assembly 2.
The working principle of the four-cylinder compressor of the invention is as follows: the stator 3 and the rotor rotating shaft part 11 form a double-shaft motor, the double-shaft motor drives the eccentric piston assemblies 2 positioned at two sides to rotate at the same time, the double-shaft motor drives the eccentric wheel 24 to do rotary motion, the rotary motion of the eccentric wheel 24 carries the piston 21 and the connecting rod 22 to do linear reciprocating motion in the cylinder 5, so that compressed air is generated and pushed to the air storage cavity 616 for storage through the switch of the air outlet valve 623, and finally the compressed air is discharged from the air inlet hole 612 in use.
The foregoing describes in detail preferred embodiments of the present invention. It should be understood that numerous modifications and variations can be made in accordance with the concepts of the invention by one of ordinary skill in the art without undue burden. Therefore, all technical solutions which can be obtained by logic analysis, reasoning or limited experiments based on the prior art by the person skilled in the art according to the inventive concept shall be within the scope of protection defined by the claims.

Claims (10)

1. The utility model provides an eccentric piston connecting rod assembly, includes pivot (1) and respectively two liang cup joints four eccentric piston assemblies (2) at pivot (1) both ends, characterized in that: the rotating shaft (1) is formed by integrating a rotor rotating shaft part (11), two first eccentric rotating shaft parts (12) and two second eccentric rotating shaft parts (13), the diameters of the rotor rotating shaft part (11), the first eccentric rotating shaft parts (12) and the second eccentric rotating shaft parts (13) are sequentially reduced, the two first eccentric rotating shaft parts (12) are respectively positioned at two ends of the rotor rotating shaft part (11), the second eccentric rotating shaft parts (13) are positioned at the outer ends of the first eccentric rotating shaft parts (12), and the four eccentric piston assemblies are respectively sleeved on the two first eccentric rotating shaft parts (12) and the two second eccentric rotating shaft parts (13).
2. The eccentric piston connecting rod assembly as in claim 1 wherein: the eccentric piston assembly comprises a piston (21), a connecting rod (22) and an eccentric wheel sleeve (23) which are integrally formed from top to bottom, the eccentric wheel sleeve (23) is sleeved on an eccentric wheel (24), and the eccentric wheel (24) is sleeved on the rotating shaft (1); and the rotating shaft (1) is also sleeved with an eccentric balancing weight (25) which is close to the eccentric piston assembly.
3. The eccentric piston connecting rod assembly as in claim 2 wherein: a piston apron (26) is also arranged at the top of the piston (21).
4. The eccentric piston connecting rod assembly as in claim 2 wherein: the front and back sides of the connecting rod (22) are respectively provided with two parallel weight reduction grooves (27) which are concave inwards, and reinforcing ribs (28) are arranged between the two weight reduction grooves (27).
5. The eccentric piston connecting rod assembly as in claim 1 wherein: the outer end of the second eccentric rotary shaft part (13) is also integrally extended with a fan rotary shaft part (14), and the diameter of the fan rotary shaft part (14) is smaller than that of the second eccentric rotary shaft part (13).
6. A four-cylinder compressor, characterized in that: the eccentric piston connecting rod assembly according to any one of claims 1 to 5, further comprising a stator (3), wherein the rotor rotating shaft part (11) is inserted into the axle center of the stator (3), a piston (21) of the eccentric piston assembly (2) stretches into a cylinder (5), the cylinder (5) is arranged in a cylinder accommodating structure (6), the eccentric piston assembly (2) and the stator (3) are arranged in a shell (7), and the cylinder accommodating structure (6) is arranged at the top of the shell (7).
7. The four-cylinder compressor according to claim 6, wherein: the cylinder accommodating structure (6) comprises a gas storage box cover (61), a cylinder pressing plate (62), a first cylinder fixing frame (63) and a second cylinder fixing frame (64) which are sequentially arranged in a stacked mode from top to bottom, and the second cylinder fixing frame (64) is arranged at the top of the shell (7).
8. The four-cylinder compressor according to claim 7, wherein: the gas storage box cover (61) is provided with a gas outlet hole (611) and a gas inlet hole (612) which are communicated with the outside, and the cylinder pressing plate (62) is provided with two groups of gas inlet valves (621) and gas outlet valves (623); and a cylinder sealing ring (65) is arranged between the gas storage box cover (61) and the cylinder pressing plate (62), and the gas inlet valve (621) and the gas outlet valve (623) are communicated with the inside of the gas storage box cover (61) and the inside of the cylinder (5).
9. The four-cylinder compressor according to claim 7, wherein: the side surfaces of the first cylinder fixing frame (63) and the second cylinder fixing frame (64) are respectively provided with a penetrating radiating hole (66).
10. The four-cylinder compressor according to claim 7, wherein: the top of the gas storage box cover (61) is also provided with a plurality of heat dissipation plates (67).
CN202310670533.XA 2023-06-07 2023-06-07 Eccentric piston connecting rod assembly and four-cylinder air compressor Pending CN116517808A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310670533.XA CN116517808A (en) 2023-06-07 2023-06-07 Eccentric piston connecting rod assembly and four-cylinder air compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310670533.XA CN116517808A (en) 2023-06-07 2023-06-07 Eccentric piston connecting rod assembly and four-cylinder air compressor

Publications (1)

Publication Number Publication Date
CN116517808A true CN116517808A (en) 2023-08-01

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CN202310670533.XA Pending CN116517808A (en) 2023-06-07 2023-06-07 Eccentric piston connecting rod assembly and four-cylinder air compressor

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117404177A (en) * 2023-11-27 2024-01-16 北京氢璞创能科技有限公司 Internal combustion engine

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117404177A (en) * 2023-11-27 2024-01-16 北京氢璞创能科技有限公司 Internal combustion engine

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