CN206903760U

CN206903760U - cylinder assembly

Info

Publication number: CN206903760U
Application number: CN201720841178.8U
Authority: CN
Inventors: 黄顺坚
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-07-12
Filing date: 2017-07-12
Publication date: 2018-01-19
Anticipated expiration: 2027-07-12

Abstract

It the utility model is related to a kind of cylinder assembly, it includes the cylinder head and a cylinder seat that are arranged at a piston, cylinder head is integrated with cylinder seat castable, the cylinder seat further includes a ring wall face ring around the bottom for forming in its side wall, and multiple fixing hole hole formed therethroughs are on the ring wall face, the enterprising one step forming of the cylinder head has multiple fins, self interval of the fin and equidistantly form on cylinder head, and the fin of lowermost end extends downward into the relative position of piston bottom dead centre, the utility model is due to the shaping of cylinder head and will be assembled into a step, therefore it is more efficient in manufacture, and because all fins are all arranged on cylinder head, entirety in shape can be more uniform after it shapes, thus improve radiating efficiency of the present utility model.

Description

Cylinder assembly

Technical field

The utility model is on a kind of cylinder assembly, espespecially a kind of cylinder with cylinder head and cylinder seat.

Background technology

Refer to shown in Fig. 9, in the prior art, on the cylinder 90 in automobile equal power device, its main group As a cylinder head 91 and a cylinder seat 92, its cylinder seat can be cast aluminium or cast iron, it is however generally that, manufacture cylinder head 91 and cylinder After machining, cylinder head 91 is fixed on cylinder seat 92 by bolt 93 to be individually separated processing for the process of seat 92, To complete the assembling of cylinder 90.

And cylinder 90 is when in use, it is mounted on engine pistons, piston can be entered by a lower opening of cylinder seat 92 Enter in the inner space being collectively forming to cylinder head 91 and cylinder seat 92, and the internal face of cylinder head 91 connects provided with pipeline 94 To cigar lighter, it is intended that when engine start, the cigar lighter can trigger igniting and be produced with the oil gas in engine quick-fried Fried, gas caused by blast can drive piston to carry out upper and lower reciprocating motion in the inner space, and then operate engine.

Speech is changed, while engine operates, because the internal temperature of cylinder 90 constantly raises, how effectively by cylinder 90 The heat transfer in portion space simultaneously carries out the problem of radiating is particularly significant.

And in general, the radiating of cylinder 90 is by two parts, and first is that cylinder head 91 is provided with two steam vents 95 High-temp waste gas caused by blast can be discharged, second is multiple fins 96,97 in cylinder head 91 and the outside wall surface of cylinder seat 92, is led to The fin 96,97 is crossed further to reduce the temperature of inside.

However, the cylinder of prior art is upper in assembling and use, there is some following shortcoming.

First, because cylinder head 91 and cylinder seat 92 are to be formed separately, after molding and manufacturing and machine, producer Cylinder head 91 must be assembled to spiral shell to consolidate to cylinder seat 92, except increase processing procedure and man-hour, cause the process in assembling work to increase , also can be because of the tolerance stack caused by repeatedly assembling in structure outside adding.

Second, ideally, its shape of the fin 96,97 of heat transmission on cylinder head 91 and cylinder seat 92, lines, even It is in-between interval, if shaping that all should be uniform, equidistant, but due to cylinder head 91 and the separate machined of cylinder seat 92, The specification between fin 96,97 will be made to produce error during separate machined twice, further, since cylinder head 91 and cylinder seat The problem of 92 be assembling shaping, and its composition surface easily forms radiating obstacle, and combination is also easy to produce air-tightness, therefore cause fin 96th, 97 radiating effect is by a certain degree of reduction.

Utility model content

In view of the shortcomings that prior art and deficiency, the utility model provides a kind of cylinder assembly, and it is in the fabrication process Cylinder head and cylinder seat were processed and assembled with the time, and all fin distributions are arranged on cylinder head, therefore it is not only The assembling flow path after machining is saved, also because overall fin all forms in same surface and increases area of dissipation, and then is made Better heat-radiation effect of the present utility model.

It is a kind of cylinder assembly for the technological means that up to above-mentioned purpose of utility model, the utility model is taken, it is wrapped Containing the cylinder head and a cylinder seat being sheathed on above a piston：

The cylinder seat is a hollow base frame, and the piston can be arranged in the cylinder seat up or down, and the piston has There is a shift motion, the bottom of the shift motion is a bottom dead centre of the piston；

The cylinder cover is on the cylinder seat, and the cylinder head coats downwards the cylinder seat by the top of the cylinder seat Outside wall surface, is formed with multiple fins in the outside wall surface of the cylinder head, self interval of the fin and equidistantly forms in this The outside wall surface of cylinder head, and the fin of lowermost end extends downward into the relative position of the bottom dead centre of the piston.

The utility model has the advantage of because all fins are all formed from the outside wall surface of cylinder head, therefore only Need time processing just can complete, to overcome the mismachining tolerance caused by repeatedly processing, and in the uniform right of overall appearance Deserving to be called also has preferably performance, makes the flow direction of airflow radiating and passage is distributed more rational, therefore fin is compared with can be complete Play the function of its radiating.

Furthermore, foregoing cylinder assembly, the wherein cylinder head are castables on the cylinder seat.

Furthermore, foregoing cylinder assembly, the wherein enterprising one step forming of the cylinder seat have multiple fasteners, the card The internal face of component and the cylinder head fastens, and the cylinder head is inseparably sticked on the cylinder seat.

Brief description of the drawings

Fig. 1 is stereo appearance figure of the present utility model.

Fig. 2 is the stereo appearance figure at another visual angle of the utility model.

Fig. 3 is planar elevation view of the present utility model.

Fig. 4 is side view of the present utility model.

Fig. 5 is section plan of the present utility model.

Fig. 6 is the section plan for being the utility model and a piston.

Fig. 7 is the section plan that the utility model pours into a mould flow.

Fig. 8 is the cast flow section plan of another angle of the utility model.

Fig. 9 is the stereo appearance figure of the cylinder of prior art.

Primary clustering symbol description：

The ring wall face of 10 cylinder seat 11

The cylinder head of 12 fixing hole 20

21 fins

Embodiment

Coordinate schema and preferred embodiment of the present utility model below, it is predetermined real to reach that the utility model is expanded on further The technological means taken with new purpose.

Refer to shown in Fig. 1 and Fig. 2, cylinder assembly of the present utility model includes the cylinder being sheathed on a piston 81 The cylinder head 20 of seat 10 and one.

Refer to shown in Fig. 5 and Fig. 6, cylinder seat 10 is a hollow base frame, and the piston 81 can be arranged at up or down In cylinder seat 10, and piston 81 has about one shift motion, and this shift motion is that piston 81 can be along the inwall of cylinder seat 10 Face moves reciprocatingly up and down, and the bottom of the shift motion is the bottom dead centre of piston 81.

Refer to shown in Fig. 1, Fig. 3 and Fig. 5, a ring wall face 11, multiple fixing holes 12 are further includeed on cylinder seat 10 And multiple fasteners 13, ring wall face 11 form in the bottom of the side wall of cylinder seat 10 and stretched out, on the fixing hole 12 Under run through on the ring wall face 11, and the fixing hole 12 is around the ring wall face 11 and being intervally installed, in the present embodiment, institute It is screw to state fixing hole 12, but is not limited, and it also can be other kinds of hole；The fastener 13 forms in cylinder seat In 10 outside wall surface.

Refer to shown in Fig. 4 and Fig. 5, cylinder head 20 is covered on cylinder seat 10, cylinder head 20 by cylinder seat 10 top The outside wall surface of cladding cylinder seat 10 downwards, and cylinder seat 10 is fixed by the fastener 13 and the phase of cylinder head 20, by cylinder head 20 inseparably cover at outside it.

Refer to shown in Fig. 3, Fig. 4 and Fig. 5, cylinder head 20 further includes multiple fins 21, and the fin 21 is each other Between the upper and lower every and equidistantly form in the outside wall surface of cylinder head 20, and extend downward into the relative position of the bottom dead centre of the piston 81 Put.

Wherein, just it is combined integrally with cylinder seat 10 in the lump while shaping on cylinder head 20, its side shaped Method is as follows.

Refer to shown in Fig. 7 and Fig. 8, first, the cylinder seat 10 machined in advance is positioned on a teeming stage, and Half and half cylinder head casting mold 82 is set by its left and right sides cover, after the cylinder head casting mold 82 combines with cylinder seat 10, connect And injected the metal of molten condition in cylinder head casting mold 82 by the top sprue gate 84 of the cylinder head casting mold 82, because This, will the self-assembling formation cylinder head 20 after metal fills up the space between the cylinder head casting mold 82 and cylinder seat 10 Model, simultaneously as the fastener 13 of the outside wall surface of cylinder seat 10 protrudes from the outside wall surface, therefore cylinder head 20 is in shaping During will be combined into one with cylinder seat 10, and after forming can not be with cylinder seat by the fixing of the fastener 13 10 are separated.

The utility model is by the way that two steps of " make and shape " and " being combined with cylinder seat 10 " of cylinder head 20 are closed And it is one, and interior mould when pouring into a mould cylinder head 20 is substituted by cylinder seat 10, therefore cost can be greatly reduced, and improve and exist Efficiency in making, in addition, this procedure of processing also make the fin 21 it is overall need only be undergone jointly in making once plus Work process, therefore it can be reduced and be machined in the issuable error of institute on cylinder head 20 and cylinder seat 10 respectively, and it is because all Fin 21 all form in the outside wall surface of cylinder head 20, therefore also there is preferably performance in the well-balanced property of bulk shape, enter And make radiating effect more preferable, therefore the utility model is making and is all having its advantage using upper.

Furthermore, because the fin 21 of the lowermost end in the fin 21 is the bottom dead centre that extends downwardly into piston 81 (81 reciprocating minimum point of piston), therefore efficiently thermal source during piston operation can be taken out of and be radiated.

In foregoing preferred embodiment, the castable of cylinder head 20 is not limited on cylinder seat 10, also visually Situation and make cylinder head 20 and cylinder seat 10 respectively in advance, finally cylinder head 20 is arranged again and is incorporated into outside cylinder seat 10, such as This is one come still can be and preferable with the well-balanced property of bulk shape by the way that all fins 21 all to be formed in the outside wall surface of cylinder head 20 And radiating effect it is more preferable the effect of.

Described above is only preferred embodiment of the present utility model, not the utility model is done any formal Limitation, although the utility model is disclosed above with preferred embodiment, but is not limited to the utility model, any to be familiar with Professional and technical personnel, in the range of technical solutions of the utility model are not departed from, when in the technology using the disclosure above Hold the equivalent embodiment made a little change or be modified to equivalent variations, as long as being without departing from technical solutions of the utility model Hold, any simple modification, equivalent change and modification made according to the technical essence of the utility model to above example, still Belong in the range of technical solutions of the utility model.

Claims

1. a kind of cylinder assembly, it includes the cylinder head and a cylinder seat being sheathed on above a piston, it is characterised in that：

The cylinder seat is a hollow base frame, and the piston can be arranged in the cylinder seat up or down, and the piston has one Shift motion, the bottom of the shift motion are a bottom dead centre of the piston；

The cylinder cover is on the cylinder seat, and the cylinder head is coated downwards the outer wall of the cylinder seat by the top of the cylinder seat Face, is formed with multiple fins in the outside wall surface of the cylinder head, self interval of the fin and equidistantly forms in the cylinder The outside wall surface of head, and the fin of lowermost end extends downward into the relative position of the bottom dead centre of the piston.

2. cylinder assembly according to claim 1, the wherein cylinder head are castables on the cylinder seat.

3. cylinder assembly according to claim 1 or 2, the wherein enterprising one step forming of the cylinder seat have multiple fasteners, institute The internal face for stating fastener and the cylinder head fastens, and the cylinder head is inseparably sticked on the cylinder seat.