CN208330564U

CN208330564U - A kind of auto parts and components manufacture self-seal type insulation piston cap

Info

Publication number: CN208330564U
Application number: CN201820747633.2U
Authority: CN
Inventors: 吴家柱; 梁建; 王志伟
Original assignee: Yangzhou Jiheng Machinery Manufacturing Co Ltd
Current assignee: Yangzhou Jiheng Machinery Manufacturing Co Ltd
Priority date: 2018-05-19
Filing date: 2018-05-19
Publication date: 2019-01-04
Anticipated expiration: 2028-05-19

Abstract

The utility model discloses a kind of auto parts and components manufacture self-seal type insulation piston caps, including piston only, piston only includes piston cap and piston boit, mounting blocks are equipped in the middle part of the bottom wall of the piston cap, the first gasket is symmetrically arranged at left and right sides of the mounting blocks, the lower section two sides of the mounting blocks are symmetrically arranged with barb member, the upper surface middle part of the piston boit is equipped with mounting groove, the two sides of the bottom of the mounting groove are symmetrically arranged with barb slot compatible with barb member, and the inner wall side of the barb member slot is equipped with limiting device.Auto parts and components manufacture self-seal type insulation piston cap, piston cap and piston boit are snapped connection by the mounting groove on the mounting blocks and piston boit in piston cap, mounting blocks the right and left is equipped with the first gasket, piston cap is installed with piston boit closer, card slot and fixture block are respectively equipped on piston cap and piston boit, the outer surface of fixture block is equipped with the second gasket, and the second gasket includes rubber sealant.

Description

A kind of auto parts and components manufacture self-seal type insulation piston cap

Technical field

The utility model relates to piston technical field, specially a kind of auto parts and components manufacture self-seal type insulation piston Lid.

Background technique

Piston cap is with piston boit as piston together parts reciprocating in Motor Engine Cylinder body, piston Basic structure can be divided into top, head and skirt section, top land is the major part for forming combustion chamber, shape with it is selected Combustion-chamber shape it is related, gasoline engine mostly uses flat-head piston, its advantage is that endotherm area is small.

Piston-mode motor is to push piston motion by fuel combustion, is then converted to crank rotation.

But existing piston is prone to wear and causes notch in cylinder, and in gaseous mixture compression and combustion process, partially quilt The gas of compression and burning expansion squeezes out from notch, cylinder pressure is made to accelerate decline, reduces the strength for pushing piston, existing After piston excessively uses abrasion, the abrasion opened gap of piston increases, and be easy to cause gas leakage, the air-tightness of piston is insufficient, burning Exhaust gas afterwards is readily permeable, is deposited in piston groove, gradually to will cause carbon deposit in piston groove excessive, cause piston ring stuck In annular groove, make piston ring lost its bounce, cause piston that cannot be in close contact and gas leakage with cylinder inner wall, reduce engine performance, The lubricating and wear-resisting deficiency of piston also results in cylinder excessive wear, and cylinder inner wall is pulled or scratched, serious to engine damage, The normal use of engine is seriously affected, piston often understands wear damage in long-time use, influences engine normal operation, It is very troublesome and laborious to replace piston.

Utility model content

The purpose of this utility model is to provide a kind of auto parts and components manufacture self-seal type insulation piston caps, to solve The problems mentioned above in the background art.

To achieve the above object, the utility model provides the following technical solutions: self-sealing is used in a kind of manufacture of auto parts and components Type insulation piston cap, the piston only include piston cap and piston boit, are equipped with mounting blocks, institute in the middle part of the bottom wall of the piston cap It states and is symmetrically arranged with the first gasket at left and right sides of mounting blocks, the lower section two sides of the mounting blocks are symmetrically arranged with barb member, described The upper surface middle part of piston boit is equipped with mounting groove, and the two sides of the bottom of the mounting groove are symmetrically arranged with barb compatible with barb member Slot, the inner wall side of the barb member slot are equipped with limiting device, and the limiting device includes limit clamp and spring, the limit One end of device is connected with pressing lever, and the pressing lever is connected with connecting rod far from one end of limiting device, and the connecting rod is remote One end from pressing lever is equipped with button, and the button is located at the outer surface of piston boit, and the upper surface two sides of the piston boit are all provided with Have a fixture block, the outer surface of the fixture block is equipped with the second gasket, the lower surface two sides of the piston cap be equipped with on piston boit The compatible card slot of surface fixture block, the outer surface of the piston cap are equipped with multiple piston grooves, are equipped with piston ring in the piston groove, The piston ring includes first gas ring, second gas ring and oil ring, and the first gas ring is identical as the structure of second gas ring, and described One compression ring is located at the top of second gas ring, and the oil ring is located at the lower section of second gas ring, the first gas ring and second gas ring it Between be equipped with the first wear ring, be equipped with the second wear ring between the second gas ring and oil ring, first wear ring and second resistance to Bull ring structure is identical, runs through on first wear ring and the second wear ring and is connected with rolling bar.

Preferably, the outer surface of the first gas ring is equipped with insulated enclosure wearing layer, and the insulated enclosure layer includes ceramics Inorganic coating, abrasive aggregates layer, chromium carbide coating and silastic-layer, the upper surface of the ceramic inorganic coating and abrasive aggregates layer Lower surface be fixedly connected, the upper surface of the abrasive aggregates layer is fixedly connected with the lower surface of chromium carbide coating, the carbonization The upper surface of chrome coating is fixedly connected with the lower surface of silastic-layer.

Preferably, second gasket includes rubber sealant and thunder Jingjing body fibrous layer, the rubber sealant Upper surface is fixedly connected with the lower surface of thunder Jingjing body fibrous layer.

Preferably, gap-clearance of piston rings is equipped on the first gas ring, second gas ring and oil ring, two neighboring piston ring is opened Mouth angle is 120 °.

Preferably, insulated enclosure pressure pad, the insulated enclosure pressure pad are lined on the mounting surface of the piston cap and piston boit Including electro-insulating rubber layer and polyimide layer, the fixed company in the upper surface of the electro-insulating rubber layer and the upper surface of polyimide layer It connects.

Compared with prior art, the utility model has the beneficial effects that

(1), auto parts and components manufacture self-seal type insulation piston cap, piston cap and piston boit pass through in piston cap Mounting blocks are snapped connection with the mounting groove on piston boit, and mounting blocks the right and left is equipped with the first gasket, make piston cap and work Stick harness installation is closer, and card slot and fixture block are respectively equipped in piston cap and piston boit, and the outer surface of fixture block is equipped with the second gasket, Second gasket includes rubber sealant, has the characteristics that insulation, resistance to compression and air-tightness are good, thunder Jingjing body fibrous layer has sealing The features such as property is good, Heat-resistant stable and good chemical stability, the coefficient of expansion is small, keeps fixture block and card slot gap-free sealed, further plus By force to the sealing of piston, the lower section of mounting blocks is equipped with barb member, and barb member is fixed by barb member slot hook limiting device, is limited One end of device is connected with pressing lever and connecting rod, and connecting rod is connected with button, and button can extrude limit to the pressure of connecting rod Device makes piston cap and piston post separation, facilitates the replacement and disassembly of piston cap, and first that the appearance wall of piston cap is equipped with is resistance to Rolling bar on bull ring and the second wear ring can be rotated with the movement of piston, can be mitigated the friction of piston, be extended making for piston Use the service life.

(2), auto parts and components manufacture self-seal type insulation piston cap, first gas ring are equipped with insulated enclosure layer, absolutely Edge sealant includes ceramic inorganic coating, has a high temperature resistant, the characteristic of wear-resisting and resistance to expansion, abrasive aggregates layer, have intensity it is high, Impact resistance, Corrosion Protection are good, chromium carbide coating, have high temperature resistant, wear-resisting, corrosion-resistant and oxidation resistance, silastic-layer tool Have that insulation, elasticity is good, high temperature resistant, pressure resistance, acid-alkali-corrosive-resisting and impervious characteristic, first gas ring and second gas ring structure phase Together, sealing performance is stronger, more wear resistant, greatly reinforces the wearability and leakproofness of piston, in addition excellent high temperature resistance is living Plug integral strength is higher, and the service life is longer, and insulated enclosure pressure pad, insulated enclosure are lined on the mounting surface of piston cap and piston boit Pressure pad includes electro-insulating rubber layer and polyimide layer, and electro-insulating rubber layer has the characteristics that insulation, resistance to compression and air-tightness are good, and polyamides is sub- Amine layer has high temperature resistant and high insulating property, keeps piston cap and piston column sealing seamless, internal not perishable and oxidation, whole Intensity is high, and the service life is longer.

Detailed description of the invention

Fig. 1 is the utility model piston structure explosion cross-sectional view；

Fig. 2 is the utility model button control structure schematic diagram；

Fig. 3 is the utility model piston cap structural schematic diagram；

Fig. 4 is the utility model gap-clearance of piston rings schematic diagram；

Fig. 5 is the utility model insulated enclosure wearing layer structure filling figure；

Fig. 6 is the utility model insulated enclosure pressure pad structural schematic diagram；

Fig. 7 is the second gasket structure of the utility model blank map；

Fig. 8 is the utility model insulated enclosure pressure pad structure filling figure.

In figure: piston only 1, piston cap 2, piston boit 3, mounting blocks 4, mounting groove 5, the first gasket 6, fixture block 7, card slot 8, barb member 9, limiting device 10, spring 11, limit clamp 12, button 13, pressing lever 14, barb member slot 15, connecting rod 16, the Two gaskets 17, rubber sealant 1701, thunder Jingjing body fibrous layer 1702, piston ring 18, piston groove 19, first gas ring 20, the Two compression rings 21, oil ring 22, the first wear ring 23, the second wear ring 24, rolling bar 25, insulated enclosure pressure pad 26, electro-insulating rubber layer 2601, polyimide layer 2602, insulated enclosure wearing layer 27, ceramic inorganic coating 2701, abrasive aggregates layer 2702, chromium carbide painting Layer 2703, silastic-layer 2704, gap-clearance of piston rings 28.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model；Meanwhile in this specification it is cited as "upper" ", "lower", "left", "right", " centre " and " one " etc. term, be merely convenient to being illustrated for narration, rather than to limit this The enforceable range of utility model, relativeness are altered or modified, under the content of no substantial changes in technology, when being also considered as this The enforceable range of utility model.

Please refer to Fig. 1-8, the utility model provides a kind of technical solution: a kind of auto parts and components manufacture self-seal type is exhausted Edge piston cap, piston only 1 include piston cap 2 and piston boit 3, and it is close that insulation is lined in piston cap 2 and the mounting surface of piston boit 3 Seal pressure pad 26, insulated enclosure pressure pad 26 include electro-insulating rubber layer 2601 and polyimide layer 2602, electro-insulating rubber layer 2601 it is upper Surface is fixedly connected with the upper surface of polyimide layer 2602, and mounting blocks 4, a left side for mounting blocks 4 are equipped in the middle part of the bottom wall of piston cap 2 Right two sides are symmetrically arranged with the first gasket 6, piston cap 2 and piston boit 3 and pass through on the mounting blocks 4 and piston boit 3 in piston cap 2 Mounting groove 5 snaps connection, the first gasket 6 that 4 the right and left of mounting blocks is symmetrically arranged with, and installs piston cap 2 and piston boit 3 Closer, the lower section two sides of mounting blocks 4 are symmetrically arranged with barb member 9, and barb member 9 passes through 15 hook position limit device of barb member slot 10, one end of limiting device 10 is connected with pressing lever 14 and connecting rod 16, and button 13 can extrude limit to the pressure of connecting rod 16 Device 10 separates piston cap 2 with piston boit 3, facilitates the replacement and disassembly of piston cap 2, and the upper surface middle part of piston boit 3 is equipped with Mounting groove 5, the two sides of the bottom of mounting groove 5 are symmetrically arranged with barb member slot 15 compatible with barb member 9, the inner wall of barb member slot 15 Side is equipped with limiting device 10, and limiting device 10 includes limit clamp 12 and spring 11, one end of limiting device 10 be connected with by Compression bar 14, pressing lever 14 are connected with connecting rod 16, the one end of connecting rod 16 far from pressing lever 14 far from one end of limiting device 10 Equipped with button 13, button 13 is located at the outer surface of piston boit 3, and the upper surface two sides of piston boit 3 are equipped with fixture block 7, fixture block 7 it is outer Surface is equipped with the second gasket 17, and the second gasket 17 includes rubber sealant 1701 and thunder Jingjing body fibrous layer 1702, rubber The upper surface of sealant 1701 is fixedly connected with the lower surface of thunder Jingjing body fibrous layer 1702, and the lower surface two sides of piston cap 2 are equal Equipped with card slot 8 compatible with 3 upper surface fixture block 7 of piston boit, the outer surface of fixture block 7 is equipped with the second gasket 17, the second sealing Pad 17 includes rubber sealant 1701, has the characteristics that insulation, resistance to compression and air-tightness are good, thunder Jingjing body fibrous layer 1702 has close The features such as envelope property is good, Heat-resistant stable and good chemical stability, the coefficient of expansion is small, keeps fixture block 7 and card slot 8 gap-free sealed, into one Step reinforces the sealing to piston only 1, and the outer surface of piston cap 2 is equipped with multiple piston grooves 19, is equipped with piston ring in piston groove 19 18, piston ring 18 includes first gas ring 20, second gas ring 21 and oil ring 22, on first gas ring 20, second gas ring 21 and oil ring 22 It is equipped with gap-clearance of piston rings 28, two neighboring 28 angle of gap-clearance of piston rings is 120 °, and the outer surface of first gas ring 20 is equipped with insulation Seal wear-resistant layer 27, insulated enclosure wearing layer 27 include ceramic inorganic coating 2701, abrasive aggregates layer 2702, chromium carbide coating 2703 and silastic-layer 2704, the upper surface of ceramic inorganic coating 2701 be fixedly connected with the lower surface of abrasive aggregates layer 2702, The upper surface of abrasive aggregates layer 2702 is fixedly connected with the lower surface of chromium carbide coating 2703, the upper surface of chromium carbide coating 2703 It being fixedly connected with the lower surface of silastic-layer 2704, first gas ring 20 is identical as the structure of second gas ring 21, and first gas ring 20 In the top of second gas ring 21, oil ring 22 is located at the lower section of second gas ring 21, is equipped between first gas ring 20 and second gas ring 21 First wear ring 23 is equipped with the second wear ring 24, the first wear ring 23 and the second wear ring between second gas ring 21 and oil ring 22 24 structures are identical, through being connected with rolling bar 25 on the first wear ring 23 and the second wear ring 24, piston cap 2 be equipped with first Rolling bar 25 on wear ring 23 and the second wear ring 24 can be rotated with the movement of piston only 1, can mitigate the friction of piston, Extend the service life of piston.

Working principle: piston only 1 includes piston cap 2 and piston boit 3, piston cap 2 and piston boit 3 by mounting blocks 4 and Mounting groove 5 is sealed docking, and the first gasket 6 is equipped at left and right sides of mounting blocks 4, when piston cap 2 is docked with piston boit 3, First gasket 6, which is squeezed, becomes flat, and leakproofness is stronger, and the two sides of piston cap 2 are equipped with card slot 8, the corresponding two sides of piston boit 3 Equipped with fixture block 7, fixture block 7 is equipped with the second gasket 17, and 17 air-tightness of the second gasket is good, and the coefficient of expansion is small and stability is strong, Piston cap 2 and piston boit 3 are docked by fixture block 7 and card slot 8, further strengthen the integral strength of piston only 1, piston cap 2 The bottom wall two sides of upper mounting blocks 4 are symmetrically arranged with barb member 9, and the bottom wall two sides of 3 mounting groove 5 of piston boit are equipped with suitable with 9 phase of barb member 9 slot of barb member matched, the inner wall side of 9 slot of barb member are equipped with limiting device 10, after piston cap 2 is docked with the sealing of piston boit 3, Hook 9 is connected under limiting device 10 and is fixed, and piston only 1 influences to start by prolonged use meeting wear damage The normal efficiency of machine, one end of limiting device 10 are connected with pressing lever 14 and connecting rod 16, and connecting rod 16 is connected with button 13, presses Button 13 can extrude limiting device 10 to the pressure of connecting rod 16, separates piston cap 2 with piston boit 3, facilitates the replacement of piston cap 2 With disassembly, the outer surface of piston cap 2 is equipped with multiple piston grooves 19, and piston groove 19 is equipped with first gas ring 20,21 and of second gas ring Oil ring 22, the notch of two neighboring ring, which is staggered 120 °, can block airflow, and in-cylinder pressure is high, and engine efficiency is higher, the One piston ring 18 is identical with 21 structure of second gas ring, and first gas ring 20 is equipped with insulated enclosure layer, including ceramic inorganic coating 2701, abrasive aggregates layer 2702, chromium carbide coating 2703 and silastic-layer 2704 have first gas ring 20 and second gas ring 21 The features such as sealing performance is stronger, and wearability is higher, and insulating capacity is strong, and voltage endurance capability is strong and Heat-resistant stable, in addition excellent resistance to height Warm nature can make 1 integral strength of piston only higher, and the service life is longer, and the outer surface of piston cap 2 is equipped with 23 He of the first wear ring Second wear ring 24, for the first wear ring 23 between first gas ring 20 and second gas ring 21, the second wear ring 24 is located at second Between compression ring 21 and oil ring 22, the first wear ring 23 is identical as 24 structure of the second wear ring, and running through on the first wear ring 23 has rolling Bar 25, rolling bar 25 is in the normal work of piston, the cylinder inner wall that fitting piston only 1 operates, the fortune of auxiliary piston ontology 1 It is dynamic, the friction of piston only 1 and cylinder inner wall is reduced, the friction pressure of piston ring 18 is mitigated, and does not influence the close of piston ring 18 Feng Xing operates piston only 1 more flexible, and friction pressure is small, and the service life is longer, on the mounting surface of piston cap 2 and piston boit 3 It is lined with insulated enclosure pressure pad 26, insulated enclosure pressure pad 26 includes electro-insulating rubber layer 2601 and polyimide layer 2602, electro-insulating rubber Layer 2601 has the characteristics that insulation, resistance to compression and air-tightness are good, and polyimide layer 2602 has high temperature resistant and high insulating property, makes Piston cap 2 seals seamless with piston boit 3, keeps the inside of piston only 1 not perishable and aoxidizes, leakproofness is strong, and then makes to live It is higher to fill in integral strength.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

Piston cap, including piston only (1) 1. a kind of auto parts and components manufacture self-seal type insulate, it is characterised in that: described Piston only (1) includes piston cap (2) and piston boit (3), is equipped with mounting blocks (4) in the middle part of the bottom wall of the piston cap (2), described It is symmetrically arranged at left and right sides of mounting blocks (4) the first gasket (6), the lower section two sides of the mounting blocks (4) are symmetrically arranged with barb The upper surface middle part of part (9), the piston boit (3) is equipped with mounting groove (5), and the two sides of the bottom of the mounting groove (5) are symmetrically arranged with The inner wall side of the compatible barb member slot (15) with barb member (9), the barb member slot (15) is equipped with limiting device (10), institute Stating limiting device (10) includes that limit clamp (12) and spring (11), one end of the limiting device (10) are connected with pressing lever (14), the pressing lever (14) is connected with connecting rod (16) far from the one end of limiting device (10), and the connecting rod (16) is separate One end of pressing lever (14) is equipped with button (13), and the button (13) is located at the outer surface of piston boit (3), the piston boit (3) Upper surface two sides be equipped with fixture block (7), the outer surface of the fixture block (7) is equipped with the second gasket (17), the piston cap (2) Lower surface two sides be equipped with the compatible card slot (8) of piston boit (3) upper surface fixture block (7), the appearance of the piston cap (2) Face is equipped with multiple piston grooves (19), is equipped with piston ring (18) in the piston groove (19), and the piston ring (18) includes the first gas Ring (20), second gas ring (21) and oil ring (22), the first gas ring (20) is identical as the structure of second gas ring (21), and described One compression ring (20) is located at the top of second gas ring (21), and the oil ring (22) is located at the lower section of second gas ring (21), and described first The first wear ring (23) are equipped between compression ring (20) and second gas ring (21), are set between the second gas ring (21) and oil ring (22) Have the second wear ring (24), first wear ring (23) is identical as the second wear ring (24) structure, first wear ring (23) and run through on the second wear ring (24) and be connected with rolling bar (25).
The piston cap 2. a kind of auto parts and components manufacture according to claim 1 self-seal type insulate, it is characterised in that: institute The outer surface for stating first gas ring (20) is equipped with insulated enclosure wearing layer (27), and the insulated enclosure layer includes ceramic inorganic coating (2701), abrasive aggregates layer (2702), chromium carbide coating (2703), silastic-layer (2704), the ceramic inorganic coating (2701) upper surface is fixedly connected with the lower surface of abrasive aggregates layer (2702), the upper surface of the abrasive aggregates layer (2702) It is fixedly connected with the lower surface of chromium carbide coating (2703), the upper surface of the chromium carbide coating (2703) and silastic-layer (2704) lower surface is fixedly connected.
The piston cap 3. a kind of auto parts and components manufacture according to claim 1 self-seal type insulate, it is characterised in that: institute Stating the second gasket (17) includes rubber sealant (1701) and thunder Jingjing body fibrous layer (1702), the rubber sealant (1701) upper surface is fixedly connected with the lower surface of thunder Jingjing body fibrous layer (1702).
The piston cap 4. a kind of auto parts and components manufacture according to claim 1 self-seal type insulate, it is characterised in that: institute It states and is equipped with gap-clearance of piston rings (28) on first gas ring (20), second gas ring (21) and oil ring (22), two neighboring piston ring is opened Mouth (28) angle is 120 °.
The piston cap 5. a kind of auto parts and components manufacture according to claim 1 self-seal type insulate, it is characterised in that: institute It states and is lined with insulated enclosure pressure pad (26) on the mounting surface of piston cap (2) and piston boit (3), the insulated enclosure pressure pad (26) includes Electro-insulating rubber layer (2601) and polyimide layer (2602), the upper surface of the electro-insulating rubber layer (2601) and polyimide layer (2602) upper surface is fixedly connected.