CN210178481U

CN210178481U - Frequency conversion semi-precision piston mechanism

Info

Publication number: CN210178481U
Application number: CN201921183685.2U
Authority: CN
Inventors: Yaohui Zou; 邹耀辉
Original assignee: ZHEJIANG ZHONGPING POWDER METALLURGY CO Ltd
Current assignee: ZHEJIANG ZHONGPING POWDER METALLURGY CO Ltd
Priority date: 2019-07-25
Filing date: 2019-07-25
Publication date: 2020-03-24
Anticipated expiration: 2029-07-25

Abstract

The utility model discloses a semi-smart piston mechanism of frequency conversion, including burning jar, piston, round pin axle and connecting rod, a serial communication port, be connected with the piston through sliding fit's mode in the burning jar, the lower extreme of piston is connected with the connecting rod through round pin axle rotation, the piston lateral wall is from last to being equipped with two gas tanks and an oil groove down in proper order, and all be provided with corresponding gas ring and oil ring with it in gas tank and the oil groove, piston up end off-plate edge is equipped with the groove of taking a breath, the upper end of the groove lateral wall of taking a breath is the block rubber, the inslot of taking a breath evenly is equipped with sealing mechanism along its circumference direction, piston up end middle part is equipped with the seal groove, install. The utility model provides a half smart piston mechanism of frequency conversion, it can carry out timely clearance to the adsorbed carbon deposit of engine combustion chamber inner wall to the normal work of guarantee piston ring reaches the effect that improves fuel availability factor, extension engine life.

Description

Frequency conversion semi-precision piston mechanism

Technical Field

The utility model relates to an internal-combustion engine technical field especially relates to a half smart piston mechanism of frequency conversion.

Background

The piston is a part which does reciprocating motion in an engine cylinder body, the piston can transmit combustion pressure in the cylinder to a crankshaft through a piston pin and a connecting rod, various pits are often formed in the top of the piston in a diesel engine, the structural design of the piston is very important for the engine, and the existing piston has a plurality of problems in use:

the first problem is that: if carbon deposition generated during fuel combustion cannot be cleaned in time, a large amount of carbon deposition can be adhered to the inner wall of the combustion chamber, so that a piston ring is easily clamped in a ring groove, and the utilization rate of fuel is further influenced;

the second problem is that: once the piston ring is blocked in the ring groove, the piston is easy to pull, so that scratches are generated on the inner wall of the combustion chamber, the scratches influence the air tightness of the combustion chamber, and the service life of the engine can be directly shortened.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem of providing a variable frequency semi-precision piston mechanism to overcome the problems existing in the prior engine when the piston is used; so as to ensure the full combustion of the fuel and prolong the service life of the engine.

The utility model provides a technical scheme that above-mentioned technical problem adopted is: the utility model provides a half smart piston mechanism of frequency conversion, includes combustion cylinder, piston, round pin axle and connecting rod, be connected with the piston through sliding fit's mode in the combustion cylinder, the lower extreme of piston is connected with the connecting rod through round pin axle rotation.

The piston side wall is provided with two air grooves and an oil groove from top to bottom in sequence, and air rings and oil rings corresponding to the air grooves and the oil grooves are arranged in the air grooves and the oil grooves.

The outer edge of the upper end face of the piston is provided with a ventilation groove, the upper end of the outer side wall of the ventilation groove is provided with a rubber block, a sealing mechanism is uniformly arranged in the ventilation groove along the circumferential direction of the ventilation groove, the middle part of the upper end face of the piston is provided with a sealing groove, a cross rod is arranged in the sealing groove, the upper end of the cross rod is provided with a sealing plug through a sealing spring, a storage groove is arranged in the piston, the ventilation groove and the sealing groove are of an inverted cone structure, and the size of the sealing; during operation, under the effect of sealing spring and ventilation spring, when the piston begins to move upwards, the rubber block can clear up the combustion chamber carbon deposit, and the air produces the flow in the combustion chamber simultaneously.

The ventilation groove is communicated with the sealing groove through a communicating groove, and a dust removing branched chain is installed in the communicating groove.

The dust removing branch chain comprises dust removing springs arranged in upper and lower inner wall grooves of the communicating groove, a dust removing net is arranged between the upper and lower dust removing springs, the lower part of the lower dust removing spring is communicated with the storage groove through a connecting groove, and the lower end of the storage groove is in threaded connection with a chip removal plug; during operation, the dust removal branched chain can remove carbon deposition in gas.

The sealing mechanism comprises two supporting rods arranged in a ventilation groove, a ventilation spring is arranged on the upper end face of each supporting rod, the upper ends of the ventilation springs are connected through sealing rings, grooves are formed in the two ends of each sealing ring, the inner side wall and the outer side wall of the lower end face of each sealing ring are of arc-shaped structures, the size of each sealing ring is smaller than that of the upper end of the ventilation groove, the adjacent sealing rings are mutually clamped, and sealing clamping teeth are arranged at the clamping positions; during operation, the sealing mechanism and the sealing plug ensure the air tightness of the combustion chamber.

Compared with the prior art, the technical scheme of the utility model have following advantage:

1. the utility model provides a half smart piston mechanism of frequency conversion, it can carry out timely clearance to the adsorbed carbon deposit of engine combustion chamber inner wall to the normal work of guarantee piston ring reaches the effect that improves fuel availability factor, extension engine life.

2. The utility model discloses well gas exchange groove, the seal groove, block rubber and dust removal branch chain mutually support for the piston is when upwards promoting, gas in the combustion chamber can produce certain flow, when the block rubber cleared up the combustion chamber inner wall, the dust removal branch chain filters the carbon deposit in the gas, thereby reach the purpose of clearing up the carbon deposit in the combustion chamber, the cylinder problem of drawing that leads to is died to the piston ring card has been avoided, the availability factor of fuel has both been improved and the normal use of engine has been ensured, the life of engine has been prolonged.

3. The utility model discloses well sealing mechanism reaches certain atmospheric pressure after the combustion chamber, and sealing mechanism closes, and at this moment, the combustion chamber is encapsulated situation, has ensured that the piston head sets up the requirement that the hole groove does not influence the combustion chamber seal.

Drawings

FIG. 1 is a sectional view of the overall structure of the present invention;

fig. 2 is an enlarged view of a portion of fig. 1 according to the present invention;

FIG. 3 is a cross-sectional view taken along line B-B of FIG. 1 in accordance with the present invention;

fig. 4 is a schematic view of the sealing ring clamping of the present invention.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 4, the utility model provides a half smart piston mechanism of frequency conversion, including burning jar 1, piston 2, round pin axle 3 and connecting rod 4, be connected with piston 2 through sliding fit's mode in the burning jar 1, the lower extreme of piston 2 is connected with connecting rod 4 through round pin axle 3 rotations.

The side wall of the piston 2 is sequentially provided with two air grooves and an oil groove from top to bottom, and the air grooves and the oil groove are internally provided with air rings 21 and oil rings 22 corresponding to the air grooves and the oil grooves.

The outer edge of the upper end face of the piston 2 is provided with a ventilation groove 23, the upper end of the outer side wall of the ventilation groove 23 is provided with a rubber block 6, a sealing mechanism 24 is uniformly arranged in the ventilation groove 23 along the circumferential direction of the ventilation groove, the middle part of the upper end face of the piston 2 is provided with a sealing groove 25, a cross rod 26 is arranged in the sealing groove 25, the upper end of the cross rod 26 is provided with a sealing plug 28 through a sealing spring 27, a storage groove 29 is arranged in the piston 2, the ventilation groove 23 and the sealing groove 25 are of an inverted cone structure, and the size of the sealing groove 25; in operation, when the piston 2 moves upwards from the lowest end, at this time, under the action of the sealing spring 27 and the ventilation spring 242, the sealing plug 28 is separated from the sealing ring 243, the ventilation groove 23, the sealing groove 25, the communication groove 5 and the combustion chamber are communicated, when the piston 2 continues to move upwards, the rubber block 6 can clean carbon deposition attached to the inner wall of the combustion chamber, and meanwhile, a certain amount of air flows in the combustion chamber, the ventilation groove 23, the communication groove 5 and the sealing groove 25.

The ventilation groove 23 is communicated with the sealing groove 25 through a communicating groove 5, and a dust removing branched chain 51 is installed in the communicating groove 5.

The dust removing branched chain 51 comprises dust removing springs 511 arranged in upper and lower inner wall grooves of the communicating groove 5, a dust removing net 512 is arranged between the upper and lower dust removing springs 511, the lower part of the lower dust removing spring 511 is communicated with the storage groove 29 through a connecting groove, and the lower end of the storage groove 29 is in threaded connection with a chip removal plug 513; during operation, the air flows in last step, and because the groove 23 size of breathing out is greater than seal groove 25 size, the air can be discharged from seal groove 25 through the groove 23 of breathing out and intercommunication groove 5 by the combustion chamber and form the circulation, in this process, the air can be through dust removal net 512, thereby can clear away the carbon deposit in the gas, and simultaneously, dust removal net 512 passes through spring mounting in intercommunication groove 5, the change of atmospheric pressure can lead to dust removal net 512 to rock, shake off the carbon deposit of accumulation, and enter into in the deposit groove 29 through the spread groove, thereby can avoid the carbon deposit too much to cause the dead problem of piston 2 ring card, avoided drawing the jar phenomenon to reduce the machine life who sends.

The sealing mechanism 24 comprises two support rods 241 arranged in the ventilation groove 23, the upper end surfaces of the support rods 241 are provided with ventilation springs 242, the upper ends of the ventilation springs 242 are connected through sealing rings 243, grooves are arranged at the two ends of the sealing rings 243, the inner side wall and the outer side wall of the lower end surface of the sealing rings 243 are of arc-shaped structures, the size of each sealing ring 243 is smaller than that of the upper end of the ventilation groove 23, the adjacent sealing rings 243 are mutually clamped, and a sealing clamping tooth 244 is arranged at the clamping position; when the combustion chamber is in work, when the piston 2 continues to move upwards, the sealing rings 243 are clamped with each other and the sealing rings 243 are clamped with the ventilation groove 23, meanwhile, the sealing plug 28 is clamped with the sealing groove 25, the combustion chamber is in a sealing state at the moment, after fuel is combusted, the air pressure in the combustion chamber is changed greatly, the combustion chamber can still be kept sealed when the piston 2 moves downwards, after the piston 2 slides downwards to a certain position, a valve at the upper end of the combustion chamber is opened, at the moment, under the action of the sealing spring 27 and the ventilation spring 242, the sealing plug 28 and the sealing rings 243 are opened, the piston 2 moves upwards again, and the reciprocating circulation is carried out in sequence, so that carbon deposition on the inner wall of the combustion chamber is cleaned; thereby ensuring the sealing performance of the combustion chamber and improving the utilization efficiency of the fuel.

When in work:

air flow: when the piston 2 moves upwards from the lowest end, at the moment, under the action of the sealing spring 27 and the ventilation spring 242, the sealing plug 28 is separated from the sealing ring 243, the ventilation groove 23, the sealing groove 25, the communication groove 5 are communicated with the combustion chamber, when the piston 2 continues to move upwards, the rubber block 6 can clean carbon deposition attached to the inner wall of the combustion chamber, and meanwhile, certain air flows between the combustion chamber and the ventilation groove 23, the communication groove 5 and the sealing groove 25;

removing carbon deposit: in the previous step, air flows, and because the size of the ventilation groove 23 is larger than that of the sealing groove 25, the air can be discharged from the sealing groove 25 through the ventilation groove 23 and the communication groove 5 from the combustion chamber to form circulation, in the process, the air can pass through the dust removal net 512, so that carbon deposition in the air can be removed, meanwhile, the dust removal net 512 is installed in the communication groove 5 through a spring, the change of air pressure can cause the dust removal net 512 to shake, the accumulated carbon deposition is shaken off, and the accumulated carbon deposition enters the storage groove 29 through the connection groove;

ensuring sealing: when the piston 2 continues to move upwards, after the combustion chamber reaches a certain air pressure, the sealing rings 243 are clamped with each other, the sealing rings 243 are clamped with the ventilation groove 23, meanwhile, the sealing plug 28 is clamped with the sealing groove 25, the combustion chamber is in a sealing state at the moment, after fuel is combusted, the air pressure in the combustion chamber is changed greatly, the combustion chamber can still be kept sealed when the piston 2 moves downwards, after the piston 2 slides downwards to a certain position, a valve at the upper end of the combustion chamber is opened, at the moment, under the action of the sealing spring 27 and the ventilation spring 242, the sealing plug 28 and the sealing rings 243 are opened, the piston 2 moves upwards again, and the reciprocating circulation is performed in sequence, so that carbon deposition on the inner wall of the combustion chamber.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A variable-frequency semi-precision piston mechanism comprises a combustion cylinder (1), a piston (2), a pin shaft (3) and a connecting rod (4), and is characterized in that the combustion cylinder (1) is internally connected with the piston (2) in a sliding fit manner, and the lower end of the piston (2) is rotatably connected with the connecting rod (4) through the pin shaft (3);

the side wall of the piston (2) is sequentially provided with two air grooves and an oil groove from top to bottom, and air rings (21) and oil rings (22) corresponding to the air grooves and the oil grooves are arranged in the air grooves and the oil grooves;

an air exchange groove (23) is formed in the outer edge of the upper end face of the piston (2), sealing mechanisms (24) are uniformly arranged in the air exchange groove (23) along the circumferential direction of the air exchange groove, a sealing groove (25) is formed in the middle of the upper end face of the piston (2), a cross rod (26) is installed in the sealing groove (25), a sealing plug (28) is installed at the upper end of the cross rod (26) through a sealing spring (27), and a storage groove (29) is formed in the piston (2);

the sealing mechanism (24) comprises two supporting rods (241) arranged in the ventilation groove (23), the upper end faces of the supporting rods (241) are provided with ventilation springs (242), the upper ends of the ventilation springs (242) are connected through sealing rings (243), and grooves are formed in the two ends of the sealing rings (243);

the ventilation groove (23) is communicated with the sealing groove (25) through a communicating groove (5), and a dust removing branched chain (51) is arranged in the communicating groove (5).

2. The variable frequency semi-precision piston mechanism of claim 1, wherein: the dust removing branch chain (51) comprises dust removing springs (511) arranged in upper and lower inner wall grooves of the communicating groove (5), a dust removing net (512) is arranged between the upper and lower dust removing springs (511), the lower part of the lower dust removing spring (511) is communicated with the storage groove (29) through a connecting groove, and the lower end of the storage groove (29) is in threaded connection with a chip removal plug (513).

3. The variable frequency semi-precision piston mechanism of claim 1, wherein: the air exchange groove (23) and the sealing groove (25) are of an inverted cone structure, and the size of the sealing groove (25) is smaller than that of the air exchange groove (23).

4. The variable frequency semi-precision piston mechanism of claim 1, wherein: the adjacent sealing rings (243) are clamped with each other, and a sealing clamping tooth (244) is arranged at the clamping position.

5. The variable frequency semi-precision piston mechanism of claim 1, wherein: the inner side wall and the outer side wall of the lower end face of the sealing ring (243) are of arc-shaped structures, and the size of the sealing ring (243) is smaller than that of the upper end of the ventilation groove (23).

6. The variable frequency semi-precision piston mechanism of claim 1, wherein: the upper end of the outer side wall of the ventilation groove (23) is provided with a rubber block (6).