CN114321353B - General structure of air cylinder and adjusting method - Google Patents
General structure of air cylinder and adjusting method Download PDFInfo
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- CN114321353B CN114321353B CN202111363850.4A CN202111363850A CN114321353B CN 114321353 B CN114321353 B CN 114321353B CN 202111363850 A CN202111363850 A CN 202111363850A CN 114321353 B CN114321353 B CN 114321353B
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- 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
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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Abstract
The invention discloses a general structure of an air cylinder and an adjusting method, comprising the following steps: the main shell, the gear selecting cylinder shell and the rear shell are fixedly connected; a first valve is arranged on the gear selecting cylinder shell; the first valve is communicated with the first air cavity; the air inlet pipe and the air outlet pipe are respectively communicated with the first valve; the piston rod penetrates through an inner hole of the main shell, and the first gear selecting piston is fixedly connected with the piston rod; the main shell and the gear selecting cylinder shell are sealed through a first sealing ring; the first gear selecting piston is sealed with the piston rod through a second sealing ring; the main shell is sealed with the piston rod through a third sealing ring; the first gear selecting piston is in sealing connection with the gear selecting cylinder shell through a first lip-shaped sealing ring; the first gear selecting piston and the second gear selecting piston are sealed through a second lip-shaped sealing ring; the second gear selecting piston is sealed with the gear selecting cylinder shell through a third lip-shaped sealing ring. The invention only needs to replace the rear end cover with the rear cylinder shell and the rear cylinder piston, can realize the conversion of the air cavity position, has simple and compact structure and reduces the failure rate of the actuating mechanism.
Description
Technical Field
The invention belongs to the field of speed changers, and relates to a general structure of an air cylinder and an adjusting method.
Background
At present, the gear selecting cylinder of the existing AMT transmission modularized XY actuating mechanism is almost a three-position cylinder and can be matched with a three-gear transmission; the corresponding transmission matched with four gears needs four-position gear selecting cylinders, and although manufacturers design execution mechanisms of the four-position gear selecting cylinders, reliability is poor, and the fault that gear selecting and positioning are inaccurate is frequently fed back in the market. In addition, the existing six-gear and twelve-gear transmission main box structure is four-gear, and if a three-position gear selecting cylinder is adopted, another gear cylinder and an air circuit are required to be rearranged, so that great inconvenience is caused to design.
Disclosure of Invention
The invention aims to solve the problems in the prior art, provides a general structure of an air cylinder and an adjusting method, realizes the exchange of a four-position air cylinder and a three-position air cylinder through the change of part parts, solves the problem of inaccurate gear selection of the four-position gear selection air cylinder, and realizes the general design matching of the three-position air cylinder and the four-position air cylinder structure.
In order to achieve the purpose, the invention is realized by adopting the following technical scheme:
a cylinder general structure comprising: the device comprises a main shell, a first gear selecting piston, a second gear selecting piston, a gear selecting cylinder shell, a rear shell, a piston rod, a first air cavity, an air inlet pipe and an exhaust pipe;
the main shell, the gear selecting cylinder shell and the rear shell are fixedly connected;
a first valve is arranged on the gear selecting cylinder shell; the first valve is communicated with the first air cavity;
the air inlet pipe and the air outlet pipe are respectively communicated with the first valve;
the piston rod penetrates through an inner hole of the main shell, and the first gear selecting piston is fixedly connected with the piston rod;
the main shell is in sealing connection with the gear selecting cylinder shell through a first sealing ring;
the first gear selecting piston is in sealing connection with the piston rod through a second sealing ring;
the main shell is in sealing connection with the piston rod through a third sealing ring;
the first gear selecting piston is in sealing connection with the gear selecting cylinder shell through a first lip-shaped sealing ring;
the first gear selecting piston is in sealing connection with the second gear selecting piston through a second lip-shaped sealing ring;
the second gear selecting piston is in sealing connection with the gear selecting cylinder shell through a third lip-shaped sealing ring.
The invention further improves that:
the rear shell adopts a rear cylinder shell, and the main shell, the gear selecting cylinder shell and the rear cylinder shell are fastened and matched through bolts;
the gear selecting cylinder shell and the following cylinder shell are sealed through a cylinder cover sealing gasket.
The rear cylinder piston is positioned on one side of the rear cylinder shell; the post cylinder piston is in sealing connection with the post cylinder shell through a fourth sealing ring.
The cylinder piston is characterized by further comprising a bushing and a circlip for a hole, wherein the bushing is pressed into the cylinder piston by interference, and the circlip for the hole is pressed and fixed by a gear selecting cylinder shell and the cylinder shell through bolts.
The air-conditioner also comprises a second air cavity, a third air cavity and a fourth air cavity;
the first air cavity is a cavity formed by a main shell, a piston rod, a gear selecting cylinder shell and a first gear selecting piston, one side of the first air cavity is sealed by a first sealing ring and a third sealing ring, and the other side of the first air cavity is sealed by a first lip-shaped sealing ring and a second sealing ring;
the second air cavity is a cavity formed by the first gear selecting piston, the second gear selecting piston and the gear selecting cylinder shell;
the third air cavity is a cavity formed by a first gear selecting piston, a second gear selecting piston, a piston rod, a rear cylinder piston, a gear selecting cylinder shell and a rear cylinder shell, one side of the third air cavity is sealed by a second lip-shaped sealing ring, a third lip-shaped sealing ring and a second sealing ring, and the other side of the third air cavity is sealed by a fourth sealing ring;
and the fourth air cavity is a cavity formed by the following cylinder piston and the following cylinder shell.
The gear selecting cylinder shell is provided with a second valve and a vent plug; a third valve is arranged on the rear cylinder shell; the second valve is communicated with the third air cavity, and the ventilation plug is communicated with the second air cavity; the third valve is communicated with the fourth air cavity;
the air inlet pipe and the air outlet pipe are respectively communicated with the second valve and the third valve;
the first valve, the second valve and the third valve are two-position three-way electromagnetic valves.
The rear shell adopts a rear end cover which is in fastening fit with the gear selecting cylinder shell through bolts and the main shell.
A fourth valve is arranged on the rear end cover; the fourth valve is communicated with the fifth air cavity; the fifth air cavity is a cavity formed by the first gear selecting piston, the second gear selecting piston, the piston rod, the gear selecting cylinder shell and the rear end cover;
the air inlet pipe and the air outlet pipe are respectively communicated with a fourth valve;
the fourth valve is a two-position three-way electromagnetic valve.
A method of cylinder universal structure adjustment, comprising:
when the rear shell is the cylinder structure of the rear cylinder shell, the control method of the cylinder is as follows:
opening a first valve, a second valve and a third valve, wherein gas passing through an air inlet pipe enters a first air cavity and a second valve respectively through the first valve, enters a third air cavity, the third valve enters a fourth air cavity, the gas of the third valve pushes a rear cylinder piston to a circlip for holes, and the first valve gas and the second valve gas enable a piston rod to be in a middle position;
the second valve is opened, the first valve and the third valve are closed, gas passing through the gas inlet pipe enters the third air cavity through the second valve to push the piston rod and the first gear selecting piston to move until the end face of the first gear selecting piston is attached to the end face of the main shell, and the gas in the first air cavity enters the exhaust pipe through the first valve to be discharged to the outside;
the first valve and the third valve are simultaneously opened, the second valve is closed, gas passing through the gas inlet pipe enters the first gas cavity through the first valve to push the piston rod and the second gear selecting piston until the end face of the piston rod is attached to the end face of the bushing, and the gas in the third gas cavity enters the gas outlet pipe through the second valve to be discharged to the outside;
opening the first valve, closing the second valve and the third valve, enabling gas passing through the gas inlet pipe to enter the first gas cavity through the first valve to push the piston rod and the rear cylinder piston to move until the end face of the rear cylinder piston is attached to the end face of the rear cylinder shell, enabling gas in the third gas cavity and the fourth gas cavity to enter the gas outlet pipe through the second valve and the third valve respectively and be discharged to the outside;
when the first valve, the second valve and the third valve are opened, the air inlet pipe is communicated with the first valve, the second valve and the third valve, and the air outlet pipe is closed with the first valve, the second valve and the third valve;
when the first valve, the second valve and the third valve are closed, the air inlet pipe is closed with the first valve, the second valve and the third valve, and the air outlet pipe is communicated with the first valve, the second valve and the third valve.
A method of cylinder universal structure adjustment, comprising:
when the rear shell is of a cylinder structure when the rear end cover is arranged, the control method of the cylinder comprises the following steps:
simultaneously opening a first valve and a fourth valve, wherein gas passing through an air inlet pipe enters a first air cavity through the first valve, enters a fifth air cavity through the fourth valve, and the first valve and the fourth valve enable a piston rod to be in a middle position;
the first valve is opened, the fourth valve is closed, gas passing through the gas inlet pipe enters the first gas cavity through the first valve to push the piston rod and the second gear selecting piston to move until the end face of the second gear selecting piston is attached to the end face of the rear end cover, and gas in the fifth gas cavity enters the gas exhaust pipe through the fourth valve to be discharged to the outside;
the fourth valve is opened, the first valve is closed, gas passing through the gas inlet pipe enters the fifth air cavity through the fourth valve to push the piston rod and the first gear selecting piston to move to the end face of the first gear selecting piston and to be attached to the end face of the main shell, and the gas in the first air cavity enters the gas exhaust pipe through the first valve to be discharged to the outside;
when the first valve and the fourth valve are opened, the air inlet pipe is communicated with the first valve and the fourth valve, and the air outlet pipe is closed with the first valve and the fourth valve;
when the first valve and the fourth valve are closed, the air inlet pipe is closed with the first valve and the fourth valve, and the air outlet pipe is communicated with the first valve and the fourth valve.
Compared with the prior art, the invention has the following beneficial effects:
according to the invention, the movement of the piston rod can be accurately controlled by controlling the air inlet and the air outlet of the first air cavity, the third air cavity and the fourth air cavity, so that four positions of gear selection are realized, and meanwhile, three positions of gear selection of the universal cylinder can be realized by replacing part parts. The invention can realize the conversion of the air cavity position by only replacing the rear end cover with the rear cylinder shell, the rear cylinder piston and the like without excessively changing the main box structure, reduces the design and development difficulty of the actuating mechanism, improves the gear selection precision, has simple and compact structure and reduces the failure rate of the actuating mechanism. The three-position cylinder and the four-position cylinder provided by the invention have strong interchangeability, and are favorable for design matching; the basic structures of the three-position and the four-position are unchanged, and the variety of parts is little; the end face of the piston of the rear cylinder is provided with a bushing, so that the wear resistance is good; the four-position rear cylinder piston is limited by adopting the circlip for the hole, and has simple structure and lower cost.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a block diagram of a four cylinder assembly of the present invention;
FIG. 2 is a schematic diagram of the pneumatic control of the four-cylinder solenoid valve of the present invention;
FIG. 3 is a block diagram of a three cylinder assembly of the present invention;
fig. 4 is a schematic diagram of the three-cylinder solenoid valve air path control of the present invention.
FIG. 5 is a schematic diagram of a first gear selection position of a four-cylinder engine according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of a second gear selection position for a four-cylinder engine according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a third gear selection position of a four-cylinder engine according to an embodiment of the present invention;
FIG. 8 is a fourth gear selection position schematic diagram of a four-cylinder engine according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a first gear selection position of a three-cylinder engine according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a second gear selection position of a three cylinder according to an embodiment of the present invention;
FIG. 11 is a schematic view of a third gear selection position of a three-cylinder engine according to an embodiment of the present invention;
wherein: 1-main housing, 2-first sealing ring, 3-second sealing ring, 4-first lip seal ring, 5-first gear selecting piston, 6-second gear selecting piston, 7-second lip seal ring, 8-third lip seal ring, 9-gear selecting cylinder housing, 10-cylinder head gasket, 11-third sealing ring, 12-following cylinder housing, 13-bushing, 14-following cylinder piston, 15-hole circlip, 16-lock nut, 17-fourth sealing ring, 18-piston rod, 19-rear end cap, 20-first air cavity, 21-second air cavity, 22-third air cavity, 23-fourth air cavity, 24-fifth air cavity, 25-first valve, 26-second valve, 27-third valve, 28-fourth valve, 29-intake pipe, 30-exhaust pipe.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "upper," "lower," "horizontal," "inner," and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and does not indicate or imply that the apparatus or element to be referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the term "horizontal" if present does not mean that the component is required to be absolutely horizontal, but may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
The invention is described in further detail below with reference to the attached drawing figures:
referring to fig. 1, 2, 3 and 4, fig. 1, 2, 3 and 4 disclose a cylinder general structure comprising:
the main shell 1, the gear selecting cylinder shell 9 and the rear shell are fixedly connected; when guaranteeing to shift gears, main casing 1, select shelves cylinder casing 9 and backshell can stabilize, prevent to appear the gap, guarantee the security of derailleur.
The gear selecting cylinder shell 9 is provided with a first valve 25; the first valve 25 is communicated with the first air cavity 20; the air inlet pipe 29 and the air outlet pipe 30 are respectively communicated with the first valve 25; during gear shifting, the first air chamber 20 can perform air exhaust and air intake operations through an air inlet pipe 29 and an air outlet pipe 30 connected with the first valve 25.
The piston rod 18 passes through the inner hole of the main shell 1, and the first gear selecting piston 5 is fixedly connected with the piston rod 18;
the main shell 1 and the gear selecting cylinder shell 9 are sealed through a first sealing ring 2; the first gear selecting piston 5 is in sealing connection with the piston rod 18 through the second sealing ring 3; the main shell 1 and the piston rod 18 are sealed by a third sealing ring 11; the first gear selecting piston 5 is in sealing connection with the gear selecting cylinder shell 9 through a first lip-shaped sealing ring 4; the first gear selecting piston 5 is in sealing connection with the second gear selecting piston 6 through a second lip-shaped sealing ring 7; the second gear selecting piston 6 is in sealing connection with the gear selecting cylinder housing 9 through a third lip seal ring 8.
The air tightness and the safety of each part in the cylinder are ensured through the first sealing ring 2, the second sealing ring 3, the first lip-shaped sealing ring 4, the second gear selecting piston 6, the third lip-shaped sealing ring 8 and the third sealing ring 11.
The first selector piston 5 is in a secure fit with the piston rod 18 via a lock nut 16.
The rear shell adopts a rear cylinder shell 12, and the main shell 1, the gear selecting cylinder shell 9 and the rear cylinder shell 12 are fastened and matched through bolts;
the selector cylinder housing 9 is sealed with the following cylinder housing 12 by a cylinder head gasket 10. The cylinder head gasket 10 seals to ensure air tightness between the selector cylinder housing 9 and the following cylinder housing 12.
And a following cylinder piston 14, the following cylinder piston 14 being located on one side of the following cylinder housing 12; the following cylinder piston 14 is sealingly connected to the following cylinder housing 12 by a fourth sealing ring 17. The fourth sealing ring 17 ensures the air tightness between the following cylinder piston 14 and the following cylinder housing 12;
the cylinder block further comprises a bushing 13 and a circlip 15 for holes, wherein the bushing 13 is pressed into the following cylinder piston 14 in an interference mode, and the circlip 15 for holes is pressed and fixed by the gear selecting cylinder shell 9 and the following cylinder shell 12 through bolts.
The air-conditioner also comprises a second air cavity 21, a third air cavity 22 and a fourth air cavity 23;
the first air cavity 20 is a cavity formed by the main shell 1, the piston rod 18, the gear selecting cylinder shell 9 and the first gear selecting piston 5, one side is sealed by the first sealing ring 2 and the third sealing ring 11, and the other side is sealed by the first lip-shaped sealing ring 4 and the second sealing ring 3;
the second air cavity 21 is a cavity formed by the first gear selecting piston 5, the second gear selecting piston 6 and the gear selecting cylinder shell 9;
the third air cavity 22 is a cavity formed by the first gear selecting piston 5, the second gear selecting piston 6, the piston rod 18, the rear cylinder piston 14, the gear selecting cylinder shell 9 and the rear cylinder shell 12, one side is sealed by the second lip seal ring 7, the third lip seal ring 8 and the second seal ring 3, and the other side is sealed by the fourth seal ring 17;
the fourth air chamber 23 is the chamber formed by the following cylinder piston 14 and the following cylinder housing 12.
The gear selecting cylinder shell 9 is provided with a second valve 26 and a ventilation plug; the following cylinder housing 12 is provided with a third valve 27; the second valve 26 is communicated with the third air cavity 22, and the vent plug is communicated with the second air cavity 21; the third valve 27 is communicated with the fourth air cavity 23;
the air inlet pipe 29 and the air outlet pipe 30 are respectively communicated with the second valve 26 and the third valve 27;
when the cylinder is shifted, the first air cavity 20, the third air cavity 22 and the fourth air cavity 23 can continuously enter and exhaust through the first valve 25, the second valve 26 and the third valve 27, so that the safety of the cylinder and the success of shifting are ensured;
the first valve 25, the second valve 26 and the third valve 27 are two-position three-way solenoid valves.
The rear shell adopts a rear end cover 19, and the rear end cover 19 is in fastening fit with the gear selecting cylinder shell 9 through bolts and the main shell 1.
The rear end cover 19 is provided with a fourth valve 28; the fourth valve 28 communicates with the fifth air chamber 24; the fifth air cavity 24 is a cavity formed by the first gear selecting piston 5, the second gear selecting piston 6, the piston rod 18, the gear selecting cylinder shell 9 and the rear end cover 19;
the air inlet pipe 29 and the air outlet pipe 30 are respectively communicated with the fourth valve 28;
the fourth valve 28 is a two-position three-way solenoid valve.
A method of cylinder universal structure adjustment, comprising:
when the rear case is the cylinder structure of the rear cylinder case 12, the control method of the cylinder is as follows:
as shown in fig. 5, the first valve 25, the second valve 26 and the third valve 27 are opened, the gas passing through the gas inlet pipe 29 enters the first gas cavity 20, the second valve 26 enters the third gas cavity 22 through the first valve 25, the third valve 27 enters the fourth gas cavity 23, the gas of the third valve 27 pushes the rear cylinder piston 14 to the circlip 15 for hole, and the gas of the first valve 25 and the gas of the second valve 26 enable the piston rod to be in the middle position;
as shown in fig. 6, the second valve 26 is opened, the first valve 25 and the third valve 27 are closed, the gas passing through the gas inlet pipe 29 enters the third gas cavity 22 through the second valve 26 to push the piston rod 18 and the first gear selecting piston 5 to move until the end surface of the first gear selecting piston 5 is attached to the end surface of the main shell 1, and the gas in the first gas cavity 20 enters the gas outlet pipe 30 through the first valve 25 and is discharged to the outside;
as shown in fig. 7, the first valve 25 and the third valve 27 are opened at the same time, the second valve 26 is closed, the gas passing through the gas inlet pipe 29 enters the first gas cavity 20 through the first valve 25 to push the piston rod 18 and the second gear selecting piston 6 until the end surface of the piston rod 18 is attached to the end surface of the bushing 13, and the gas in the third gas cavity 22 enters the gas outlet pipe 30 through the second valve 26 and is discharged to the outside;
as shown in fig. 8, the first valve 25 is opened, the second valve 26 and the third valve 27 are closed, the gas passing through the gas inlet pipe 29 enters the first gas cavity 20 through the first valve 25 to push the piston rod 18 and the following cylinder piston 14 to move until the end surface of the following cylinder piston 14 is attached to the end surface of the following cylinder shell 12, and the gas in the third gas cavity 22 and the fourth gas cavity 23 enters the gas outlet pipe 30 through the second valve 26 and the third valve 27 respectively and is discharged to the outside;
when the first valve 25, the second valve 26 and the third valve 27 are opened, the air inlet pipe 29 is communicated with the first valve 25, the second valve 26 and the third valve 27, and the air outlet pipe 30 is closed with the first valve 25, the second valve 26 and the third valve 27;
when the first valve 25, the second valve 26 and the third valve 27 are closed, the air inlet pipe 29 is closed with the first valve 25, the second valve 26 and the third valve 27, and the air outlet pipe 30 is communicated with the first valve 25, the second valve 26 and the third valve 27;
when the rear shell is the cylinder structure of the rear end cover 19, the control method of the cylinder is as follows:
as shown in fig. 9, the first valve 25 and the fourth valve 28 are opened simultaneously, the gas passing through the gas inlet pipe 29 enters the first gas cavity 20 through the first valve 25, enters the fifth gas cavity 24 through the fourth valve 28, and the gas of the first valve 25 and the fourth valve 28 makes the piston rod 18 in the middle position;
as shown in fig. 10, the first valve 25 is opened, the fourth valve 28 is closed, the gas passing through the gas inlet pipe 29 enters the first gas cavity 20 through the first valve 25 to push the piston rod 18 and the second gear selecting piston 6 to move until the end face of the second gear selecting piston 6 is attached to the end face of the rear end cover 19, and the gas in the fifth gas cavity 24 enters the gas outlet pipe 30 through the fourth valve 28 and is discharged to the outside;
as shown in fig. 11, the fourth valve 28 is opened, the first valve 25 is closed, the gas passing through the gas inlet pipe 29 enters the fifth gas cavity 24 through the fourth valve 28 to push the piston rod 18 and the first gear selecting piston 5 to move to the end face of the first gear selecting piston 5, and the end face of the first gear selecting piston is attached to the end face of the main shell 5, and the gas in the first gas cavity 20 enters the gas outlet pipe 30 through the first valve 25 and is discharged to the outside;
when the first valve 25 and the fourth valve 28 are opened, the air inlet pipe 29 is communicated with the first valve 25 and the fourth valve 28, and the air outlet pipe 30 is closed with the first valve 25 and the fourth valve 28;
when the first valve 25 and the fourth valve 28 are closed, the intake pipe 29 is closed with the first valve 25 and the fourth valve 28, and the exhaust pipe 30 is communicated with the first valve 25 and the fourth valve 28.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A cylinder general structure, characterized by comprising: the gear selecting device comprises a main shell (1), a first gear selecting piston (5), a second gear selecting piston (6), a gear selecting cylinder shell (9), a rear shell, a piston rod (18), a first air cavity (20), an air inlet pipe (29) and an exhaust pipe (30);
the main shell (1), the gear selecting cylinder shell (9) and the rear shell are fixedly connected;
a first valve (25) is arranged on the gear selecting cylinder shell (9); the first valve (25) is communicated with the first air cavity (20);
the air inlet pipe (29) and the air outlet pipe (30) are respectively communicated with the first valve (25);
the piston rod (18) penetrates through an inner hole of the main shell (1), and the first gear selecting piston (5) is fixedly connected with the piston rod (18);
the main shell (1) is in sealing connection with the gear selecting cylinder shell (9) through a first sealing ring (2);
the first gear selecting piston (5) is in sealing connection with the piston rod (18) through a second sealing ring (3);
the main shell (1) is in sealing connection with the piston rod (18) through a third sealing ring (11);
the first gear selecting piston (5) is in sealing connection with the gear selecting cylinder shell (9) through a first lip-shaped sealing ring (4);
the first gear selecting piston (5) is in sealing connection with the second gear selecting piston (6) through a second lip-shaped sealing ring (7);
the second gear selecting piston (6) is in sealing connection with the gear selecting cylinder shell (9) through a third lip-shaped sealing ring (8);
the rear shell adopts a rear cylinder shell (12), and the main shell (1), the gear selecting cylinder shell (9) and the rear cylinder shell (12) are fastened and matched through bolts;
the gear selecting cylinder shell (9) and the following cylinder shell (12) are sealed through a cylinder cover sealing gasket (10);
further comprising a following cylinder piston (14), said following cylinder piston (14) being located on one side of the following cylinder housing (12); the following cylinder piston (14) is in sealing connection with the following cylinder shell (12) through a fourth sealing ring (17);
the cylinder piston is characterized by further comprising a bushing (13) and a hole elastic retainer ring (15), wherein the bushing (13) is pressed into the rear cylinder piston (14) in an interference manner, and the hole elastic retainer ring (15) is pressed and fixed by a gear selecting cylinder shell (9) and the rear cylinder shell (12) through bolts;
the device also comprises a second air cavity (21), a third air cavity (22) and a fourth air cavity (23);
the first air cavity (20) is a cavity formed by a main shell (1), a piston rod (18), a gear selecting cylinder shell (9) and a first gear selecting piston (5), one side of the cavity is sealed by a first sealing ring (2) and a third sealing ring (11), and the other side of the cavity is sealed by a first lip-shaped sealing ring (4) and a second sealing ring (3);
the second air cavity (21) is a cavity formed by the first gear selecting piston (5), the second gear selecting piston (6) and the gear selecting cylinder shell (9);
the third air cavity (22) is a cavity formed by a first gear selecting piston (5), a second gear selecting piston (6), a piston rod (18), a rear cylinder piston (14), a gear selecting cylinder shell (9) and a rear cylinder shell (12), one side of the third air cavity is sealed by a second lip seal ring (7), a third lip seal ring (8) and a second seal ring (3), and the other side of the third air cavity is sealed by a fourth seal ring (17);
a fourth air chamber (23) is a chamber formed by the following cylinder piston (14) and the following cylinder housing (12);
a second valve (26) and a ventilation plug are arranged on the gear selecting cylinder shell (9); a third valve (27) is arranged on the following cylinder shell (12); the second valve (26) is communicated with the third air cavity (22), and the ventilation plug is communicated with the second air cavity (21); the third valve (27) is communicated with the fourth air cavity (23);
the air inlet pipe (29) and the air outlet pipe (30) are respectively communicated with the second valve (26) and the third valve (27);
the first valve (25), the second valve (26) and the third valve (27) are two-position three-way electromagnetic valves.
2. The cylinder universal structure according to claim 1, wherein the rear shell adopts a rear end cover (19), and the rear end cover (19) is in fastening fit with the gear selecting cylinder shell (9) through bolts and the main shell (1).
3. The cylinder generic structure according to claim 2, characterized in that the rear end cap (19) is provided with a fourth valve (28); the fourth valve (28) is communicated with the fifth air cavity (24); the fifth air cavity (24) is a cavity formed by the first gear selecting piston (5), the second gear selecting piston (6), the piston rod (18), the gear selecting cylinder shell (9) and the rear end cover (19);
the air inlet pipe (29) and the air outlet pipe (30) are respectively communicated with the fourth valve (28);
the fourth valve (28) is a two-position three-way electromagnetic valve.
4. A cylinder general structure adjustment method based on claim 1, comprising:
when the rear shell is a cylinder structure of the rear cylinder shell (12), the control method of the cylinder comprises the following steps:
opening a first valve (25), a second valve (26) and a third valve (27), wherein gas passing through an air inlet pipe (29) enters a first air cavity (20) through the first valve (25) and enters a third air cavity (22) through the second valve (26), the third valve (27) enters a fourth air cavity (23), the gas of the third valve (27) pushes a rear cylinder piston (14) to a hole elastic retainer ring (15), and the gas of the first valve (25) and the gas of the second valve (26) enable a piston rod to be in an intermediate position;
the second valve (26) is opened, the first valve (25) and the third valve (27) are closed, gas passing through the gas inlet pipe (29) enters the third gas cavity (22) through the second valve (26) to push the piston rod (18) and the first gear selecting piston (5) to move until the end face of the first gear selecting piston (5) is attached to the end face of the main shell (1), and the gas in the first gas cavity (20) enters the gas outlet pipe (30) through the first valve (25) to be discharged to the outside;
the first valve (25) and the third valve (27) are simultaneously opened, the second valve (26) is closed, gas passing through the gas inlet pipe (29) enters the first gas cavity (20) through the first valve (25) to push the piston rod (18) and the second gear selecting piston (6) until the end face of the piston rod (18) is attached to the end face of the bushing (13), and the gas in the third gas cavity (22) enters the gas outlet pipe (30) through the second valve (26) to be discharged to the outside;
opening a first valve (25), closing a second valve (26) and a third valve (27), enabling gas passing through an air inlet pipe (29) to enter a first gas cavity (20) through the first valve (25) to push a piston rod (18) and a rear cylinder piston (14) to move until the end face of the rear cylinder piston (14) is attached to the end face of a rear cylinder shell (12), enabling gas in the third gas cavity (22) and the fourth gas cavity (23) to enter an exhaust pipe (30) through the second valve (26) and the third valve (27) respectively, and discharging the gas to the outside;
when the first valve (25), the second valve (26) and the third valve (27) are opened, the air inlet pipe (29) is communicated with the first valve (25), the second valve (26) and the third valve (27), and the air outlet pipe (30) is closed with the first valve (25), the second valve (26) and the third valve (27);
when the first valve (25), the second valve (26) and the third valve (27) are closed, the air inlet pipe (29) is closed with the first valve (25), the second valve (26) and the third valve (27), and the air outlet pipe (30) is communicated with the first valve (25), the second valve (26) and the third valve (27).
5. A cylinder general structure adjustment method based on claim 3, comprising:
when the rear shell is of a cylinder structure when the rear end cover (19) is adopted, the control method of the cylinder comprises the following steps:
simultaneously, a first valve (25) and a fourth valve (28) are opened, gas passing through an air inlet pipe (29) enters the first air cavity (20) through the first valve (25), and enters the fifth air cavity (24) through the fourth valve (28), and the gas of the first valve (25) and the fourth valve (28) enables the piston rod (18) to be in a middle position;
the first valve (25) is opened, the fourth valve (28) is closed, gas passing through the gas inlet pipe (29) enters the first gas cavity (20) through the first valve (25) to push the piston rod (18) and the second gear selecting piston (6) to move until the end face of the second gear selecting piston (6) is attached to the end face of the rear end cover (19), and the gas in the fifth gas cavity (24) enters the gas outlet pipe (30) through the fourth valve (28) to be discharged to the outside;
the fourth valve (28) is opened, the first valve (25) is closed, gas passing through the gas inlet pipe (29) enters the fifth gas cavity (24) through the fourth valve (28) to push the piston rod (18) and the first gear selecting piston (5) to move to the end face of the first gear selecting piston (5), the piston rod is attached to the end face of the main shell (5), and the gas in the first gas cavity (20) enters the gas outlet pipe (30) through the first valve (25) and is discharged to the outside;
when the first valve (25) and the fourth valve (28) are opened, the air inlet pipe (29) is communicated with the first valve (25) and the fourth valve (28), and the air outlet pipe (30) is closed with the first valve (25) and the fourth valve (28);
when the first valve (25) and the fourth valve (28) are closed, the air inlet pipe (29) is closed with the first valve (25) and the fourth valve (28), and the air outlet pipe (30) is communicated with the first valve (25) and the fourth valve (28).
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| CN206478055U (en) * | 2016-08-29 | 2017-09-08 | 河南航天液压气动技术有限公司 | A kind of new four cylinders |
| CN108386406A (en) * | 2018-01-31 | 2018-08-10 | 东风商用车有限公司 | A kind of air cylinder structure and its application process |
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