CN110821569A - Pneumatic engine - Google Patents

Pneumatic engine Download PDF

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Publication number
CN110821569A
CN110821569A CN201911344410.7A CN201911344410A CN110821569A CN 110821569 A CN110821569 A CN 110821569A CN 201911344410 A CN201911344410 A CN 201911344410A CN 110821569 A CN110821569 A CN 110821569A
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China
Prior art keywords
air distribution
vent
pipe
rotating shaft
groove
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Granted
Application number
CN201911344410.7A
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Chinese (zh)
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CN110821569B (en
Inventor
陈海深
许辉
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Guangxi Normal University
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Guangxi Normal University
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Publication of CN110821569A publication Critical patent/CN110821569A/en
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Publication of CN110821569B publication Critical patent/CN110821569B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B1/00—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements
    • F01B1/08—Reciprocating-piston machines or engines characterised by number or relative disposition of cylinders or by being built-up from separate cylinder-crankcase elements with cylinders arranged oppositely relative to main shaft and of "flat" type
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B25/00—Regulating, controlling, or safety means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
    • F01B31/00—Component parts, details, or accessories not provided for in, or of interest apart from, other groups

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)

Abstract

The invention discloses a pneumatic engine, which comprises a gas distribution pipe and a gas distribution rotating shaft, wherein a front support and a rear support are respectively arranged at two ends of the gas distribution pipe, a first vent hole, a second vent hole, a first vent pipe and a second vent pipe are respectively connected with a first cylinder and a second cylinder, the gas distribution rotating shaft sequentially penetrates through the rear support, the gas distribution pipe and the front support, an eccentric driving rod is arranged at one end, penetrating through the front support, of the gas distribution rotating shaft, the eccentric driving rod is respectively connected with a first connecting rod and a second connecting rod, a first groove and a second groove are formed in the outer wall, wrapped in the gas distribution pipe, of the gas distribution rotating shaft, the gas distribution rotating shaft is milled with a first concave surface and a second concave surface, the first concave surface is not communicated with the second groove, the second concave surface is not communicated with the first vent pipe and the second vent pipe in turn when the gas distribution rotating shaft. The pneumatic engine has the advantages of low cost, simple assembly, high air conversion efficiency, low noise and the like.

Description

Pneumatic engine
Technical Field
The invention relates to a mechanical technology, in particular to a pneumatic engine.
Background
Pneumatic engines are widely used in many fields, from the earliest steam locomotives to modern pneumatic automobiles, and are mainly used for various pneumatic mechanical accessories originated from air compressors, such as pneumatic wrenches, air cannons and the like.
Disclosure of Invention
The invention aims to provide a pneumatic engine aiming at the defects of the prior art. The pneumatic engine has the advantages of low cost, simple assembly, high air conversion efficiency, low noise and the like.
The technical scheme for realizing the purpose of the invention is as follows:
a pneumatic engine comprises a hollow air distribution pipe and an air distribution rotating shaft, wherein a front support and a rear support are respectively arranged at two ends of the air distribution pipe, a first vent hole and a second vent hole with upward openings are arranged on the air distribution pipe, the connecting line of the central point of the first vent hole and the central point of the second vent hole is parallel to the central axis of the air distribution pipe, a first vent pipe and a second vent pipe which take the central axis of the air distribution pipe as a symmetry line are symmetrically arranged on the air distribution pipe, the central axes of the first vent pipe and the second vent pipe are both vertical to a plane formed by the connecting line of the central point of the first vent hole, the central point of the second vent hole and the central point of the central axis of the air distribution pipe, the outer ends of the first vent pipe and the second vent pipe are respectively connected with a first cylinder and a second cylinder, the first cylinder and the second cylinder are fixed on the front support, a first piston with a first connecting rod and a second piston with, the air distribution rotating shaft sequentially penetrates through the rear support, the air distribution pipe and the front support and can rotate freely, the outer wall of the air distribution rotating shaft is tightly attached to the inner wall of the air distribution pipe, the air distribution rotating shaft is sealed and airtight, one end of the air distribution rotating shaft penetrating through the front support is provided with an eccentric driving rod deviating from the central axis of the air distribution rotating shaft, the eccentric driving rod is respectively connected with one outward end of the first connecting rod and one outward end of the second connecting rod, the outer wall of the air distribution rotating shaft wrapped in the air distribution pipe is provided with a first groove and a second groove in a closed ring shape, the distance between the central line of the first groove and the central line of the second groove is equal to the distance between the central points of the first vent and the second vent, namely, the first groove is always communicated with the first vent, the second groove is always communicated with the second vent when the air distribution rotating shaft rotates, the first concave surface is milled on, the first concave surface is not communicated with the second groove, a second concave surface with the same shape as the first concave surface is milled at the opposite position of the other surface of the outer wall of the air distribution rotating shaft along the second groove to the direction of the first groove, the second concave surface is not communicated with the first groove, and the first concave surface and the second concave surface are communicated with the first vent pipe and the second vent pipe in turn when the air distribution rotating shaft rotates.
When the gas distribution rotating shaft rotates clockwise to the first concave surface and is communicated with the first vent pipe, gas enters the first groove through the first vent hole and then enters the first cylinder through the first vent pipe, the gas pressure pushes the first piston in the first cylinder to move outwards, the first piston pushes the first connecting rod to move, the first connecting rod continuously pushes the gas distribution rotating shaft to accelerate clockwise movement through the eccentric driving rod, at the moment, the eccentric driving rod pushes the second connecting rod to move, so that the second piston moves in the second cylinder to compress air in the second cylinder, the compressed air is discharged from the gas distribution pipe through the second vent pipe, the second groove and the second vent hole, when the eccentric driving rod moves to the farthest end away from the first cylinder, the first piston finishes driving, at the moment, the second groove is communicated with the second vent pipe, the gas starts to enter the second cylinder through the second vent pipe and pushes the second piston to move outwards, the second piston pushes the eccentric driving rod through the second connecting rod, so that the air distribution rotating shaft continues to accelerate clockwise, meanwhile, the first piston discharges the gas in the first cylinder out of the air distribution pipe through the first vent pipe and the first vent hole, and the air distribution rotating shaft is in a cycle, so that the circulating rotating motion of the air distribution rotating shaft can be realized by air filling and compacting of the first vent hole.
The pneumatic engine has the advantages of low cost, simple assembly, high air conversion efficiency, low noise and the like.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
fig. 2 is a schematic structural view of a gas distribution rotating shaft in the embodiment.
In the figure, 1, an air distribution rotating shaft 2, a first air vent 3, a second air vent 4, a front support 5, a first air vent 6, a first air cylinder 7, a first piston 8, a first connecting rod 9, an eccentric driving rod 10, a second connecting rod 11, a second piston 12, a second air cylinder 13, a second air vent 14, a rear support 15, an air distribution pipe 16, a first groove 17, a second groove 18, a first concave surface 19 and a second concave surface.
Detailed Description
The invention will be further elucidated with reference to the drawings and examples, without however being limited thereto.
Example (b):
referring to fig. 1, a pneumatic engine comprises a hollow air distribution pipe 15 and an air distribution rotating shaft 1, wherein a front support 4 and a rear support 14 are respectively arranged at two ends of the air distribution pipe 15, a first vent 2 and a second vent 3 with upward openings are arranged on the air distribution pipe 15, a connecting line of a central point of the first vent 2 and a central point of the second vent 3 is parallel to a central axis of the air distribution pipe 15, a first vent pipe 5 and a second vent pipe 13 which take the central axis of the air distribution pipe 15 as a symmetry line are symmetrically arranged on the air distribution pipe 15, the central axes of the first vent pipe 5 and the second vent pipe 13 are both vertical to a plane formed by connecting lines of the central point of the first vent 2, the central point of the second vent 3 and the central axis of the air distribution pipe 15, the outer ends of the first vent pipe 5 and the second vent pipe 13 are respectively connected with a first cylinder 6 and a second cylinder 12, the first cylinder 6 and the second cylinder 12 are, the first cylinder 6 and the second cylinder 12 are respectively provided with a first piston 7 with a first connecting rod 8 and a second piston 11 with a second connecting rod 10, the air distribution rotating shaft 1 sequentially passes through the rear bracket 14, the air distribution pipe 15 and the front bracket 4 and can rotate freely, the outer wall of the air distribution rotating shaft 1 is tightly attached to the inner wall of the air distribution pipe 15 and sealed and airtight, one end of the air distribution rotating shaft 1 passing through the front bracket 4 is provided with an eccentric driving rod 9 deviating from the central axis of the air distribution rotating shaft 1, the eccentric driving rod 9 is respectively connected with the first connecting rod 8 and the outward end of the second connecting rod 10, as shown in figure 2, the outer wall of the air distribution rotating shaft 1 wrapped in the air distribution pipe 15 is provided with a first groove 16 and a second groove 17 which are closed ring-shaped, the distance between the central line of the first groove 16 and the central line of the second groove 17 is equal to the distance between the central points of the first vent 2 and the second vent 3, namely, the first groove 16 is always, The second groove 17 is always communicated with the second vent 3, the air distribution rotating shaft 1 mills a first concave surface 18 along the first groove 16 to the direction of the second groove 17 by the length of one third of the circumference of the first groove 16 and the depth of the first groove 16, the first concave surface 18 is not communicated with the second groove 17, a second concave surface 19 with the same shape as the first concave surface 18 is milled along the second groove 17 to the direction of the first groove 16 at the opposite position of the other surface of the outer wall of the air distribution rotating shaft 1, the second concave surface 19 is not communicated with the first groove 16, and the first concave surface 18 and the second concave surface 19 are communicated with the first vent 5 and the second vent 13 in turn when the air distribution rotating shaft 1 rotates.
When the air distribution rotating shaft 1 rotates clockwise to the first concave 18 to be communicated with the first vent pipe 5, air enters the first groove 16 through the first vent hole 2 and then enters the first cylinder 6 through the first vent pipe 5, the air pressure pushes the first piston 7 in the first cylinder 6 to move outwards, the first piston 7 pushes the first connecting rod 8 to move, the first connecting rod 8 continues to push the air distribution rotating shaft 1 to accelerate clockwise through the eccentric driving rod 9, at the moment, the eccentric driving rod 9 pushes the second connecting rod 10 to move, so that the second piston 11 moves in the second cylinder 12 to compress air in the second cylinder 12, the compressed air passes through the second vent pipe 13, the second groove 17 and the second vent hole 3 to be discharged out of the air distribution pipe 15, when the driving rod 9 moves to the farthest end away from the first eccentric cylinder 6, the first piston 7 finishes driving, and at the moment, the second groove 17 is communicated with the second vent pipe 13, gas begins to enter the second cylinder 12 through the second vent pipe 13 to push the second piston 11 to move outwards, the second piston 11 pushes the eccentric driving rod 9 through the second connecting rod 10 to enable the gas distribution rotating shaft 1 to continue to accelerate clockwise, and meanwhile, the first piston 7 discharges the gas in the first cylinder 6 out of the gas distribution pipe 15 through the first vent pipe 5 and the first vent hole 2, so that a cycle is formed, and therefore the gas distribution rotating shaft 1 can rotate circularly by aerating and compacting the first vent hole 2.

Claims (1)

1. A pneumatic engine is characterized by comprising a hollow air distribution pipe and an air distribution rotating shaft, wherein a front support and a rear support are respectively arranged at two ends of the air distribution pipe, a first vent hole and a second vent hole with upward openings are arranged on the air distribution pipe, the connecting line of the central point of the first vent hole and the central point of the second vent hole is parallel to the central axis of the air distribution pipe, a first vent pipe and a second vent pipe which take the central axis of the air distribution pipe as a symmetry line are also symmetrically arranged on the air distribution pipe, the central axes of the first vent pipe and the second vent pipe are both vertical to a plane formed by the connecting line of the central point of the first vent hole, the central point of the second vent hole and the central point of the central axis of the air distribution pipe, the outer ends of the first vent pipe and the second vent pipe are respectively connected with a first air cylinder and a second air cylinder, the first air cylinder and the second air cylinder are fixed on the front support, a first piston with a first connecting rod, the air distribution rotating shaft sequentially penetrates through the rear support, the air distribution pipe and the front support and can rotate freely, the outer wall of the air distribution rotating shaft is tightly attached to the inner wall of the air distribution pipe, the air distribution rotating shaft is sealed and airtight, one end of the air distribution rotating shaft penetrating through the front support is provided with an eccentric driving rod deviating from the central axis of the air distribution rotating shaft, the eccentric driving rod is respectively connected with one outward end of the first connecting rod and one outward end of the second connecting rod, the outer wall of the air distribution rotating shaft wrapped in the air distribution pipe is provided with a first groove and a second groove in a closed ring shape, the distance between the central line of the first groove and the central line of the second groove is equal to the distance between the central points of the first vent and the second vent, namely, the first groove is always communicated with the first vent, the second groove is always communicated with the second vent when the air distribution rotating shaft rotates, the first concave surface is milled on, the first concave surface is not communicated with the second groove, a second concave surface with the same shape as the first concave surface is milled at the opposite position of the other surface of the outer wall of the air distribution rotating shaft along the second groove to the direction of the first groove, the second concave surface is not communicated with the first groove, and the first concave surface and the second concave surface are communicated with the first vent pipe and the second vent pipe in turn when the air distribution rotating shaft rotates.
CN201911344410.7A 2019-12-23 2019-12-23 Pneumatic engine Active CN110821569B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201911344410.7A CN110821569B (en) 2019-12-23 2019-12-23 Pneumatic engine

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Application Number Priority Date Filing Date Title
CN201911344410.7A CN110821569B (en) 2019-12-23 2019-12-23 Pneumatic engine

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CN110821569A true CN110821569A (en) 2020-02-21
CN110821569B CN110821569B (en) 2024-04-02

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Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910239A (en) * 1974-06-10 1975-10-07 Richard James Opposed piston power unit
CN2082764U (en) * 1990-10-29 1991-08-14 孟海东 Four-stroke engine distributing valve
US5671702A (en) * 1994-02-17 1997-09-30 Kesol Production Ab Valve system in a rotary radial-piston engine
KR19980043142A (en) * 1998-05-26 1998-08-17 김진환 Engine suction. exhaust
FR2838769A1 (en) * 2002-04-22 2003-10-24 Mdi Motor Dev Internat Variable flow reducing valve for compressed air injection engine comprising high pressure air tank and buffer capacity utilizes pilot valve cams controlling rocker arm rods to change lever arm ratio and determine valve lift
US20040106506A1 (en) * 2001-03-28 2004-06-03 Akihide Ninomiya Sealing apparatus and manufacturing process of soft article having sealed portion
US20060000206A1 (en) * 2004-07-02 2006-01-05 Stoudt Vernon C Vacuum engine
WO2006133531A1 (en) * 2005-06-16 2006-12-21 Arkady Ivanovich Tararuk Rotary engine
CN1987105A (en) * 2005-12-21 2007-06-27 比亚迪股份有限公司 Micro air pump
JP2011196305A (en) * 2010-03-23 2011-10-06 Kayseven Co Ltd Reciprocating steam engine
JP2013002403A (en) * 2011-06-20 2013-01-07 Hiromi Isozaki Engine, and engine system
KR20130040566A (en) * 2011-10-14 2013-04-24 김동섭 Engine of vehicle
WO2018067692A1 (en) * 2016-10-04 2018-04-12 Davis Global Engines, Llc Sliding linear internal combustion engine
CN208441929U (en) * 2018-07-16 2019-01-29 倪梓欣 A kind of multi-cylinder engine system
CN211524910U (en) * 2019-12-23 2020-09-18 广西师范大学 Pneumatic engine

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3910239A (en) * 1974-06-10 1975-10-07 Richard James Opposed piston power unit
CN2082764U (en) * 1990-10-29 1991-08-14 孟海东 Four-stroke engine distributing valve
US5671702A (en) * 1994-02-17 1997-09-30 Kesol Production Ab Valve system in a rotary radial-piston engine
KR19980043142A (en) * 1998-05-26 1998-08-17 김진환 Engine suction. exhaust
US20040106506A1 (en) * 2001-03-28 2004-06-03 Akihide Ninomiya Sealing apparatus and manufacturing process of soft article having sealed portion
FR2838769A1 (en) * 2002-04-22 2003-10-24 Mdi Motor Dev Internat Variable flow reducing valve for compressed air injection engine comprising high pressure air tank and buffer capacity utilizes pilot valve cams controlling rocker arm rods to change lever arm ratio and determine valve lift
US20060000206A1 (en) * 2004-07-02 2006-01-05 Stoudt Vernon C Vacuum engine
WO2006133531A1 (en) * 2005-06-16 2006-12-21 Arkady Ivanovich Tararuk Rotary engine
CN1987105A (en) * 2005-12-21 2007-06-27 比亚迪股份有限公司 Micro air pump
JP2011196305A (en) * 2010-03-23 2011-10-06 Kayseven Co Ltd Reciprocating steam engine
JP2013002403A (en) * 2011-06-20 2013-01-07 Hiromi Isozaki Engine, and engine system
KR20130040566A (en) * 2011-10-14 2013-04-24 김동섭 Engine of vehicle
WO2018067692A1 (en) * 2016-10-04 2018-04-12 Davis Global Engines, Llc Sliding linear internal combustion engine
CN208441929U (en) * 2018-07-16 2019-01-29 倪梓欣 A kind of multi-cylinder engine system
CN211524910U (en) * 2019-12-23 2020-09-18 广西师范大学 Pneumatic engine

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马一太, 管海清, 李敏霞, 杨俊兰: "CO_2摆动活塞式膨胀机进气控制阀的设计与分析", 压缩机技术, no. 06, 22 December 2004 (2004-12-22), pages 14 - 16 *

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