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CN-121429582-B - Head of piston type oil-free supercharger

CN121429582BCN 121429582 BCN121429582 BCN 121429582BCN-121429582-B

Abstract

The invention belongs to the technical field of air pressurization, and provides a nose of a piston type oil-free supercharger, which comprises a body and at least one cylinder arranged along the radial direction of the body, wherein the body and the cylinder are arranged into a hollow cavity structure surrounded by side walls, the cylinder comprises a first cylinder, a second cylinder, a third cylinder, a fourth cylinder, a fifth cylinder and a sixth cylinder, the first cylinder, the second cylinder, the third cylinder, the fourth cylinder, the fifth cylinder and the sixth cylinder are symmetrically and uniformly distributed along the radial central axis of the body, the axes of the first cylinder and the fifth cylinder are overlapped into the same straight line, and the axes of the second cylinder and the sixth cylinder are overlapped into the same straight line. The invention adopts six-cylinder design, has strong dynamic balance, low vibration, large heat dissipation area, high exhaust capacity and efficiency, and can easily realize the multi-stage compression structure to provide high pressurized gas.

Inventors

  • SUN HAIFENG
  • CHEN ZHIWEI
  • SUN XIAOYANG

Assignees

  • 杭州纽泰低温液化装备有限公司

Dates

Publication Date
20260512
Application Date
20251231

Claims (7)

  1. 1. The utility model provides a aircraft nose of piston type oilless supercharger, includes body (10) and at least one cylinder (20) that set up along body (10) radial direction, body (10) set up with cylinder (20) to be by the cavity structure that the lateral wall surrounds and form, characterized in that, cylinder (20) include first cylinder (201), second cylinder (202), third cylinder (203), fourth cylinder (204), fifth cylinder (205), sixth cylinder (206), first cylinder (201), second cylinder (202), third cylinder (203) and fourth cylinder (204), A fifth cylinder (205), The sixth cylinder (206) is arranged to be symmetrically and evenly distributed along the radial central axis of the body (10), the axes of the first cylinder (201) and the fifth cylinder (205) are overlapped to be the same straight line, the axes of the second cylinder (202) and the sixth cylinder (206) are overlapped to be the same straight line, the first cylinder (201) is provided with a first air inlet hole (2011) and a first air outlet hole (2012) on the end face of the body (10), the second cylinder (202) is provided with a second air inlet hole (2021) and a second air outlet hole (2022) on the end face of the body (10), the third cylinder (203) is provided with a third air inlet hole (2031) and a third air outlet hole (2032) on the end face of the body (10), the fourth cylinder (204) is provided with a fourth air inlet hole (2041) and a fourth air outlet hole (2042) on the end face of the body (10), the end face of the fifth cylinder (205) is provided with a fifth air inlet hole (2051) and a fifth air outlet hole (2052) on the end face of the body (10), the sixth cylinder (206) is provided with a third air inlet hole (2031) and a sixth air outlet hole (2062) on the end face of the body (10), and the fourth cylinder (206) is provided with a sixth air inlet hole (2062) on the end face of the body (201) and the body (206) The inner diameters of the third cylinder (203), the fourth cylinder (204) and the fifth cylinder (205) are respectively larger than the inner diameters of the second air inlet hole (2021), the second air outlet hole (2022), the third air inlet hole (2031), the third air outlet hole (2032), the fourth air inlet hole (2041), the fourth air outlet hole (2042), the third air inlet hole (2061) and the sixth air outlet hole (2062), The first exhaust hole (2012) of the first cylinder (201) is connected with the second intake hole (2021) of the second cylinder (202), the second exhaust hole (2022) is connected with the third intake hole (2031) of the third cylinder (203), the sixth exhaust hole (2062) of the sixth cylinder (206) is connected with the fifth intake hole (2021) of the fifth cylinder (205), and the fifth exhaust hole (2052) is connected with the fourth intake hole (2041) of the fourth cylinder (204) to form three-stage compression.
  2. 2. The head of a piston type oil-free supercharger according to claim 1, characterized in that a crankshaft (30) capable of rotating along the axis of the body (10) is arranged in the hollow chamber of the body (10), a piston capable of freely moving along the inner wall of the cylinder (20) is arranged in the cylinder (20), the crankshaft (30) and the piston are connected through a connecting rod, and the connecting rod can convert the rotary motion of the crankshaft (30) into the reciprocating linear motion of the piston.
  3. 3. The head of a piston type oil-free supercharger according to claim 1, characterized in that the surface of the first cylinder (201) is provided with first heat radiation fins (2013), the surface of the second cylinder (202) is provided with second heat radiation fins (2023), the surface of the third cylinder (203) is provided with third heat radiation fins (2033), the surface of the fourth cylinder (204) is provided with fourth heat radiation fins (2043), the surface of the fifth cylinder (205) is provided with fifth heat radiation fins (2053), and the surface of the sixth cylinder (206) is provided with sixth heat radiation fins (2063).
  4. 4. A head of a piston type oil-free supercharger according to claim 1 or 3, characterized in that the inner surfaces of the first cylinder (201), the second cylinder (202), the third cylinder (203), the fourth cylinder (204), the fifth cylinder (205) and the sixth cylinder (206) are provided with self-lubricating material coating, and form oil-free sealing with the piston moving at high speed.
  5. 5. A head of a piston type oil-free supercharger according to claim 1 or 3, characterized in that the second cylinder (202), the third cylinder (203), the fourth cylinder (204) and the fifth cylinder (205) are provided in a split structure, comprising an upper part remote from the body (10) and a lower part connected to the body (10), the upper part and the lower part being detachably connected, and the inner diameter of the upper part being smaller than the inner diameter of the lower part.
  6. 6. A head of a piston type oil-free supercharger according to claim 1 or 3, characterized in that the first cylinder (201), the second cylinder (202), the third cylinder (203), the fourth cylinder (204), the fifth cylinder (205) and the sixth cylinder (206) are arranged in an equiangular distribution structure forming an angle of 45 ° with each other.
  7. 7. A head of a piston oil-free supercharger according to claim 1 or 2, characterised in that the bottom of the body (10) is provided with a stand (101).

Description

Head of piston type oil-free supercharger Technical Field The invention relates to the technical field of air pressurization, in particular to a nose of a piston type oil-free supercharger. Background An oilless air supercharger is a device capable of compressing gas and increasing the pressure of the gas, and is generally composed of a machine head, a driving device, an air inlet, an air outlet and a control system, and in the technical field of air supercharging, the piston type oilless supercharger has become an indispensable power device for industries with strict requirements on air quality such as medical treatment, food, pharmacy and electronics because of the characteristic of providing oilless pure compressed air, when the device works, the motor drives the crankshaft connecting rod mechanism in the machine head to rotate to generate rotary motion, then the piston reciprocates through the connecting rod to change the volume of the cylinder, so that the pressure of gas in the cylinder is increased, and compressed gas is injected into the storage tank for use through the exhaust valve, the one-way valve and the pipeline. In the industrial application process of higher pressure, larger discharge capacity and continuous heavy load, the traditional oilless supercharger faces a series of serious technical bottlenecks, namely, firstly, the core friction pair depends on self-lubricating materials in an oilless lubrication state, but the limited heat dissipation area of a single/double-cylinder structure and the low-efficiency thermal management capability lead high temperature generated in the compression process to be led out in time, so that the thermal ageing and abrasion of the self-lubricating materials are accelerated, the service life of key parts is shortened, the frequent shutdown protection of equipment due to overheat is further caused, the reliability is difficult to ensure, secondly, the inherent unbalanced power problem is aggravated by the simple single-cylinder or double-cylinder reciprocating structure, severe vibration and noise are generated during operation, the basic installation requirement is high, the strong mechanical impact of the piston and the cylinder is further higher, the life and performance improvement of the equipment are limited, in addition, the single-stage or simple compression mode adopted for realizing high-pressure output is approximate to the limit of the exhaust volume temperature due to the compression ratio, and the low-energy efficiency and the high-free energy efficiency are difficult to be guaranteed under the conditions of both the high-pressure output. Disclosure of Invention The invention aims to provide a machine head of a piston type oil-free supercharger, and aims to overcome the defects that in the prior art, a single/double cylinder oil-free supercharger is unstable in structure operation, small in heat dissipation area, low in exhaust gas quantity and efficiency, short in service life and incapable of achieving two-stage or even three-stage compression. In order to solve the technical problems, the invention provides a nose of a piston type oil-free supercharger, which comprises a body and at least one cylinder arranged along the radial direction of the body, wherein the body and the cylinder are arranged into a hollow cavity structure surrounded by side walls, and the nose is characterized in that the cylinder comprises a first cylinder, a second cylinder, a third cylinder, a fourth cylinder, a fifth cylinder and a sixth cylinder, the first cylinder (201), the second cylinder (202), the third cylinder (203) and the fourth cylinder (204), the fifth cylinder (205) and the sixth cylinder (206) are symmetrically and uniformly distributed along the radial central axis of the body (10), the axes of the first cylinder (201) and the fifth cylinder (205) are overlapped into the same straight line, the axes of the second cylinder (202) and the sixth cylinder (206) are overlapped into the same straight line, and the first cylinder (201), the second cylinder (202), the third cylinder (203), the fourth cylinder (204), the fifth cylinder (205) and the sixth cylinder (206) are arranged into an equiangular distribution structure with 45 degrees. Further, a crankshaft capable of rotating along the axis of the body is arranged in the hollow cavity of the body, a piston capable of freely moving along the inner wall of the cylinder is arranged in the cylinder, the crankshaft is connected with the piston through a connecting rod, and the connecting rod can convert the rotation motion of the crankshaft into the reciprocating linear motion of the piston. Further, the first cylinder is provided with a first air inlet and a first air outlet on the end face of the body, the second cylinder is provided with a second air inlet and a second air outlet on the end face of the body, the third cylinder is provided with a third air inlet and a third air outlet on the end face of the