CN105298807B - A kind of fastening structure of air compressor cylinder lid and seat board - Google Patents
A kind of fastening structure of air compressor cylinder lid and seat board Download PDFInfo
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- CN105298807B CN105298807B CN201510812895.3A CN201510812895A CN105298807B CN 105298807 B CN105298807 B CN 105298807B CN 201510812895 A CN201510812895 A CN 201510812895A CN 105298807 B CN105298807 B CN 105298807B
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- bolt
- main bearing
- bearing seat
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- 230000008901 benefit Effects 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000003754 machining Methods 0.000 abstract description 2
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- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000007789 sealing Methods 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 230000002153 concerted effect Effects 0.000 description 4
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- 230000007423 decrease Effects 0.000 description 3
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- 230000009471 action Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 230000004323 axial length Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
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- 210000003027 ear inner Anatomy 0.000 description 1
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- VIKNJXKGJWUCNN-XGXHKTLJSA-N norethisterone Chemical compound O=C1CC[C@@H]2[C@H]3CC[C@](C)([C@](CC4)(O)C#C)[C@@H]4[C@@H]3CCC2=C1 VIKNJXKGJWUCNN-XGXHKTLJSA-N 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
Abstract
The invention belongs to Compressor Technology field, it is related to a kind of fastening structure of air compressor cylinder lid and seat board, it includes main bearing seat, cylinder, seat board, cylinder head and the bolt being fastenedly connected seat board or/and cylinder head on main bearing seat, wherein cylinder is placed between seat board and main bearing seat, seat board is placed between cylinder head and cylinder, and the cylinder is pressed against on main bearing seat by seat board.The greatest feature of the present invention is：The bolt quantity that seat board or/and cylinder head are fastened on main bearing seat is reduced to no more than three by traditional no less than four, some advantages that arise therefrom is, on the one hand the number of components of compressor can be reduced and therefore reduce the workload of machining and installation, on the other hand the structure of main bearing seat can be greatly simplified, so as to which the good effect obtained is to improve the uniformity of each bolt tightness, improve the functional reliability of compressor, reduce the manufacturing cost of compressor, reduce the making material of compressor.
Description
Technical field
The invention belongs to Compressor Technology field, and be related to a kind of air compressor cylinder lid and seat board is fastenedly connected knot
Structure, relate in particular to one kind fast can reliably be fastenedly connected main bearing seat by air compressor cylinder lid and seat board
On structure.
Background technology
Existing air compressor mainly has motor, base bearing, main bearing seat, bent axle, connecting rod, piston, cylinder, valve seat
The parts such as plate and cylinder head, wherein bent axle are supported on main bearing seat by base bearing and it are driven by motor and rotated, living
Plug is arranged in cylinder and it driven by connecting rod to make the reciprocating motion relative to cylinder, cylinder head and seat board by bent axle
Then it is fastened by bolts on main bearing seat and cylinder is also pressed on the main bearing seat by cylinder head or seat board.Traditional
Compressor, typically all cylinder head and seat board are fastened on main bearing seat using the bolt no less than four, that so does examines
Worry is that the spacing between each bolt can be made smaller, ensures sealing between cylinder head and seat board with this, while also make
Compressor cylinder cover and seat board uniform force some.It will be apparent that for the compressor of those huge discharges, it is such
Fastening bolt layout is reasonably and necessary；But for the maximum widest middle float of current output and usage amount
For measuring air compressor, so do, some deficiencies can be brought, be mainly manifested in：1) bolt radical easily causes each spiral shell too much
The uniformity of tautness is deteriorated and therefore causes the unstable of compressor performance between bolt, main reason is that installation operation number
Increasing will be more prone to increase the frequency that each bolt tightens order and tightens dynamics appearance mistake；2) bolt radical is easily led too much
Cause the functional reliability of compressor to be deteriorated, be mainly the increase in position, process and the number of parts for needing to process, and each bolt material
There is bigger difference and be inclined in matter, so as to the probability increase for causing compressor to go wrong；3) bolt radical easily causes too much
The manufacturing cost increase of compressor, on the one hand adds mach number and time, on the other hand adds the installation of worker
With the workload of detection；4) bolt radical easily causes compressor increase volume and waste of materials too much, need to be mounted so that
Bolt position is more, even so it is the labyrinths such as crankcase that main bearing seat, which must just make space frame, thus not
Only footprint is big and consuming material is more.To sum up, conventionally employed four and more than four bolt fastening cylinder head and seat board
Way on to main bearing seat undoubtedly there are area for improvement, at least influence deep middle small displacement to having a large capacity and a wide range
It is the fact that be implicitly present in for air compressor.
The content of the invention
For existing compressor using more bolt by cylinder head and seat board be fastened on main bearing seat caused by not
Foot, the present invention propose a kind of fastening structure of air compressor cylinder lid and seat board, it is therefore intended that：By reducing gas
Cylinder cap and seat board are fastened to the quantity of the bolt on main bearing seat, improve the uniformity of each bolt tightness with this, improve and press
The functional reliability of contracting machine, the manufacturing cost for reducing compressor, the making material for reducing compressor.
The purpose of the present invention is achieved in that：A kind of air compressor cylinder lid and seat board are fastenedly connected knot
Structure, it includes main bearing seat, cylinder, seat board, cylinder head and seat board or/and cylinder head is fastened on main bearing seat
Bolt, cylinder is placed between seat board and main bearing seat, seat board is placed between cylinder head and cylinder, cylinder is by seat board pressure
Lean against on main bearing seat, it is characterised in that：At least one main bearing seat, a cylinder, a seat board and a cylinder head
It is common to participate in the same pump head of composition compressor, and its seat board or/and cylinder head are fastened to it among the pump head
The quantity of bolt on main bearing seat is no more than three.
The compressor of above-mentioned cylinder head and seat board fastening structure, the quantity one of its pump head share two, and
At least one pump head uses the bolt no more than two to cover tightly the seat board of respective pump head or/and cylinder in the two pump heads
It is affixed on its main bearing seat, while the two pump heads share a motor and are driven and split the two ends in the motor.
The compressor of above-mentioned cylinder head and seat board fastening structure is duplex cylinder compressor, and two pump head is not using
The seat board of respective pump head or/and cylinder head are fastened on its main bearing seat by the bolt more than two, and the two pump heads
The progress of work operation phase on difference be no less than 45 degree.
It is above-mentioned that the seat board of respective pump head or/and cylinder head are fastened to by its base bearing using the bolt no more than two
Duplex cylinder compressor on seat, the progress of work of two pump head differ 180 degree in operation phase.
All pump heads being fastened to seat board or/and cylinder head using two bolts on main bearing seat in above-mentioned pump head, its
In two bolts of at least one pump head separated and the bolt axis of this two bolts and the pump by the cylinder of the pump head
Planes that the cylinder-bore axis of cylinder is parallel in head and this three axis coexist.
It is above-mentioned to be parallel to each other and that two bolts and cylinder, their axis of the same pump head for the plane that coexists are coexisted
The plane of waving of that plane connecting rod for belonging to a pump head together with them overlap.
Above-mentioned pump head is fastened to the spiral shell on its main bearing seat at least in a pump head, by its seat board or/and cylinder head
The quantity of bolt is two, and at least one direct acts on is pressed in the cylinder head of the pump head and by this in this two bolts
Seat board and cylinder are pressed against main bearing seat by cylinder head.
Above-mentioned pump head is fastened to the spiral shell on its main bearing seat at least in a pump head, by its seat board or/and cylinder head
The quantity of bolt is two, and at least one direct acts on is pressed on the seat board of the pump head and by this in this two bolts
Seat board is by cylinder-pressing on main bearing seat.
At least one pump head in above-mentioned pump head, on the pump head an at least bolt by beam structure by the bolt
Active force be applied separately to two different parts of the pump head cylinder head, the beam structure directly opens up in cylinder head,
Or the beam structure is made up of an independent beam.
At least one pump head in above-mentioned pump head, up to there is a few bolt by beam structure by the bolt in the pump head
Active force be applied separately to two different parts of the pump head seat board, the beam structure directly opens up on seat board,
Or the beam structure is made up of an independent beam.
At least one pump head in above-mentioned pump head, seat board or/and cylinder head are fastened to the bolt on main bearing seat by it
Quantity there was only one, be provided with hook members by cylinder head and master across the relative side of cylinder with the bolt in the pump head
Bearing block links together, and the hook members are separate piece or the hook members and main bearing seat is structure as a whole making.
At least one pump head in above-mentioned pump head, seat board or/and cylinder head are fastened to the bolt on main bearing seat by it
Quantity only only have one, in the pump head with the bolt across the relative side of cylinder be provided with hook members by seat board with
Main bearing seat links together, and the hook members are separate piece or the hook members and the main bearing seat system of being structure as a whole
Make, while cylinder head in the pump head and seat board are linked together using trip bolt.
All pump heads being fastened to seat board or/and cylinder head using two bolts on main bearing seat in above-mentioned pump head, its
In two bolts of at least one pump head be disposed in parallel in the same side of cylinder and across two bolt phases of the cylinder and this
To side be provided with hook members and link together cylinder head or seat board with main bearing seat, the hook members are independent
Part or the hook members and main bearing seat are structure as a whole making.
Convex seam or spill seam are provided with above-mentioned main bearing seat, the main bearing seat passes through these convex seams
Or the barrel shell of spill seam and compressor electric motor is located by connecting.
Above-mentioned cylinder in thin wall cylinder shelly and has the structure type of double-turnup in its two ends.
The outstanding advantages that have compared with prior art of the present invention are：Using no more than three bolts by cylinder head and seat board
It is fastened on main bearing seat, the part of compressor is significantly reduced compared with the structure of no less than four bolt fastenings of tradition
Number, on the one hand reduce the process and workload of processing, on the other hand decrease the link of installation and debugging, reduce simultaneously
The difference tendentiousness of part material, especially, the main bearing seat of installation and compressor crank shaft in place have also obtained greatly simple
Change, thus can effectively improve the uniformity of each bolt tightness, while the functional reliability of compressor can be improved, reduce compression
The manufacturing cost of machine, the making material for reducing compressor.
Brief description of the drawings
Fig. 1 is that the single pump head of fastening structure of a kind of air compressor cylinder lid and seat board of the invention only arranges one
The axle of root fastening bolt and the embodiment being pressed in cylinder head is surveyed and blast assembling schematic diagram；
Fig. 2 is that the single pump head of fastening structure of a kind of air compressor cylinder lid and seat board of the invention only arranges one
The axle of root fastening bolt and the embodiment being pressed on seat board is surveyed and blast assembling schematic diagram；
Fig. 3 is that the single pump head of fastening structure of a kind of air compressor cylinder lid and seat board of the invention only arranges two
The axle of root fastening bolt and the embodiment being pressed in cylinder head is surveyed and blast assembling schematic diagram；
Fig. 4 is the single pump head of fastening structure of a kind of air compressor cylinder lid of the present invention shown in Fig. 3 and seat board
Only arrange the survey of the axle of two fastening bolts and the embodiment being pressed in cylinder head and partial schematic sectional view；
Fig. 5 is that the fastening structure of a kind of air compressor cylinder lid and seat board of the invention shown in Fig. 3 is configured double
Cylinder compressor and each pump head only arrange vertical view (one of pump of two fastening bolts and the embodiment being pressed in cylinder head
Head removes cylinder head, seat board, cylinder and bolt) schematic diagram；
Fig. 6 is that the single pump head of fastening structure of a kind of air compressor cylinder lid and seat board of the invention only arranges two
The axle of root fastening bolt and the embodiment being pressed on seat board is surveyed and blast assembling schematic diagram；
Fig. 7 is that the fastening structure arrangement of a kind of air compressor cylinder lid and seat board of the invention has integral crossbeam
The axle of the embodiment of structure compression cylinder lid is surveyed and blast assembling schematic diagram；
Fig. 8 is that the fastening structure arrangement of a kind of air compressor cylinder lid and seat board of the invention has split type crossbeam
The axle of the embodiment of structure compression cylinder lid is surveyed and blast assembling schematic diagram；
Fig. 9 is that the fastening structure arrangement of a kind of air compressor cylinder lid and seat board of the invention has integral crossbeam
The axle that structure compresses the embodiment of seat board is surveyed and blast assembling schematic diagram；
Figure 10 is that the fastening structure arrangement of a kind of air compressor cylinder lid and seat board of the invention has split type horizontal stroke
The axle that girder construction compresses the embodiment of seat board is surveyed and blast assembling schematic diagram；
Figure 11 is the single pump head arrangement three of fastening structure of a kind of air compressor cylinder lid of the present invention and seat board
Root fastening bolt and axle survey and the blast assembling schematic diagram for all tightening the embodiment on main bearing seat body；
Figure 12 is the single pump head arrangement three of fastening structure of a kind of air compressor cylinder lid of the present invention and seat board
Root fastening bolt and vertical view (one of pump head removing cylinder head, the valve seat for all tightening the embodiment on main bearing seat body
Plate, cylinder and bolt) schematic diagram；
Figure 13 is the single pump head arrangement three of fastening structure of a kind of air compressor cylinder lid of the present invention and seat board
Root fastening bolt and two tighten an other vertical view for tightening the embodiment on motor barrel shell on main bearing seat body
(one of pump head removes cylinder head, seat board, cylinder and bolt) schematic diagram；
Figure 14 is that the single pump head arrangement of fastening structure of a kind of air compressor cylinder lid and seat board of the invention has
Two fastening bolts and the axle for arranging to have the embodiment of configuration component are surveyed and blast assembling schematic diagram；
Figure 15 is the fastening structure main bearing seat and motor of a kind of air compressor cylinder lid of the present invention and seat board
The blast assembling schematic diagram of one embodiment of assembling structure.
Embodiment
With specific embodiment, the invention will be further described below, referring to Fig. 1-15：
A kind of fastening structure of air compressor cylinder lid and seat board, it includes main bearing seat 1, cylinder 2, valve seat
Plate 3, cylinder head 4 and the bolt 5 being fastened to seat board 3 or/and cylinder head 4 on main bearing seat 1, wherein cylinder 2 are placed in valve
Between seat board 3 and main bearing seat 1, seat board 3 is placed between cylinder head 4 and cylinder 2, cylinder 2 is pressed against base bearing by seat board 3
On seat 1；Except above-mentioned parts, the air compressor for configuring cylinder head 3 of the present invention and the fastening structure of seat board 4 also configures
Have a parts such as base bearing 6, bent axle 7, connecting rod 8 and piston 9, wherein bent axle 7 be supported on by base bearing 6 on main bearing seat 1 and by
Motor A is driven and rotated to it, and piston 9 is arranged in cylinder 2 and by bent axle 7 and it driven by connecting rod 8 to make relatively
In the reciprocating motion of cylinder 2；The greatest feature of the present invention is：Among the parts of composition compressor main body, at least one
Individual 2, one, the cylinder seat board 3 of main bearing seat 1, one and a cylinder head 4 participate in the same pump head of composition compressor jointly
B, and the quantity for the bolt 5 that its seat board 3 or/and cylinder head 4 are fastened on its main bearing seat 1 in pump head B does not surpass
Cross three；It is pointed out that the quantity for possessing the pump head B of such structure type in same compressor can only have one,
It can also be two, can also be three, can even possess more pump head B, wherein compressor is if an only cylinder 2
For single cylinder compressor, if being duplex cylinder compressor if having two cylinders 2, if having n cylinder 2 be by that analogy n cylinder compressors, from
Using certainly single cylinder compressor and duplex cylinder compressor are the most universal from the point of view of extensively, correspondingly possess the one of rule of the invention
Individual pump head B single cylinder compressor and two pump head B duplex cylinder compressor are the compressors of preferred versions, especially, possess double pump
Head B two pump head of duplex cylinder compressor B can split at motor A two axial ends (as shown in Figures 1 to 4), can also one
Act the same axial end (not shown) for being arranged in motor A；Seat board 3 or/and cylinder head 4 are fastened to main bearing seat 1
Its layout situation of bolt 5 can have three kinds：1) when pump head B is to fasten seat board 3 or cylinder head 4 using a bolt 5
During situation (as depicted in figs. 1 and 2), the fastening installation of compressor valve seat board 3 and cylinder head 4 is the simplest and simple and direct, now work
People, which only needs to tighten a bolt 5, fast and to be reliably completed the fastening installment work of seat board 3 or cylinder head 4, milli
Efficiency of assembling can be effectively improved and reduce production cost by so being done without query, it should be pointed out that in order to reduce or even completely
The additional moment being applied on bolt 5 is eliminated, should when only with a bolt 5 to fasten seat board 3 or cylinder head 4
Be located at the waving in plane of connecting rod 8, and the cylinder-bore axis Ob of the bolt axis Oa of bolt 5 and cylinder 2 when arranging bolt 5 as far as possible
It should try one's best and be arranged in parallel；2) when pump head B is using two bolt 5 to fasten the situation of seat board 3 and cylinder head 4, (such as Fig. 3 is extremely
Shown in Figure 10), the quantity of bolt 5 is now not only still greatly decreased than conventional mounting mode, and two bolts 5 of optimization can be passed through
Layout improve the force-bearing situation of bolt 5, the preferable distribution form of one of which is to split two bolts 5 the two of cylinder 2
By side and make the bolt axis Oa of this two bolt 5 parallel with the cylinder-bore axis Ob of cylinder 2 and coplanar setting (as shown in Figure 5), by
This can reduce or even be completely eliminated derives because the bolt axis Oa of two bolts 5 and the cylinder-bore axis Ob of cylinder 2 are non-coplanar
The additional moment for acting on bolt 5 (assuming that gas acts on the making a concerted effort along cylinder-bore axis Ob of seat board 3 when gas is compressed
Direction, there is offset distance in plane where cylinder-bore axis Ob to two bolt axis Oa, then the additional moment is equivalent to gas pressure
The product made a concerted effort with above-mentioned offset distance during contracting, as follows), so as to improve the functional reliability of bolt 5；In addition when only with
When two bolts 5 are to fasten seat board 3 or cylinder head 4, as far as possible this two bolts 5 should be arranged to be located at waving for connecting rod 8
In plane, it can so simplify the structure of main bearing seat 1, because now along motor A axial direction (and the axial direction side of bent axle 7
To) observed, the layout of two bolts 5 can make main bearing seat 1 have shorter protrusion structure, and main bearing seat 1 can in other words
To be made more shorter (therefore the axial length of certain compressor can also shorten), therefore main bearing seat 1 has fairly simple knot
Structure；Certainly, this two bolts 5 can also be set side by side as needed when fastening seat board 3 or cylinder head 4 using two bolts 5
Put and tighten on main bearing seat 1 (as shown in figure 14), or even a bolt 5 can also be tightened on main bearing seat 1 and another
A piece bolt 5 tightens the (not shown) on motor A barrel shell；3) when pump head B is to fasten seat board using three bolts 5
3 and cylinder head 4 situation when (as shown in Figure 11 to Figure 13), now bolt 5 can realize that more flexible layout is set, such as
Allow this three bolt 5 be all tightened on the body of main bearing seat 1 (by wherein one side for being arranged in cylinder 2 and other two
Simultaneously Column Layout is by the other side of cylinder 2 and the double joint bolt 5 of Column Layout is divided with the bolt 5 of independent one by cylinder 2 for root
Every as is illustrated by figs. 11 and 12), but such as this three bolts 5 have two to be tightened on the body of main bearing seat 1 into being main spiral shell
Bolt, a remaining bolt 5 can tighten on motor A barrel shell and turn into auxiliary bolt (referring to Figure 13) in addition, kingbolt
(undertaking predominant intermolecular forces) should close proximity to or fall in the waving in plane of compressor connecting bar 8, auxiliary bolt (prevents seat board 3
There is amplitude with 4 some positions of cylinder head or deformation be excessive) it can then implement flexible arrangement as needed；Especially need what is illustrated
Be, in the present invention operating of compressor be driven by motor A, due to main bearing seat 1 and motor A barrel shell to use
The mode being fastenedly connected, therefore every situation for having bolt 5 to be fastened to motor A barrel shells, either it is secured directly to motor A cylinder
Shell is still fastened to motor A barrel shell indirectly by other components, is regarded as the bolt 5 and base bearing in the present invention
Seat 1 is fastenedly connected, that is, belongs to the category that seat board 3 or/and cylinder head 4 are fastened to main bearing seat 1 with bolt 5, also may be used
With so think motor A barrel shell be main bearing seat 1 extension or it be exactly main bearing seat 1 a part；Additionally need
It is bright, in the present invention described connecting rod 8 wave plane refer to the connecting rod 8 made plane motion at work that is flat
Face, the plane is by the cylinder-bore axis Ob of cylinder 2 and vertical with the axis of rotation of bent axle 7, it is contemplated that various fit clearances are deposited
And exist it is various because manufacturing, assemble, the error caused by stress deformation and temperature deformation, connecting rod 8 actually waves plane
Be not one it is completely preferably static allocate face, therefore connecting rod 8 described in the present invention wave plane should include it is certain
Dynamic surface characteristic, it allows in certain amplitude range or waved or play or fluctuation, described from now on connecting rod 8
Mean at a time to overlap with a certain dynamic rocking plane of connecting rod 8 as long as waving the linguistic context of plane coincidence
Think that both meet the condition overlapped, similarly the parallel linguistic context of plane of waving with connecting rod 8 described from now on also means only
It is at a time parallel with a certain dynamic rocking plane generation of connecting rod 8 i.e. it is believed that both meet parallel condition；Also need
It is noted that in the present invention it is relevant seat board 3 or/and cylinder head 4 are fastened on its main bearing seat 1 using bolt 5 in
Appearance or the discussion and description similar to this content, refer both to there are one of behavior or content of following three aspects：1) exist
Its all bolt 5 is the valve that only direct pressuring action is echoed in cylinder head 4 and by the cylinder head 4 on same pump head B
Seat board 3 and cylinder 2 press to or are pressed against on main bearing seat 1 (as shown in Figure 3 and Figure 4), now cylinder head 4 and seat board 3 it
Between trip bolt 10 can be set not need trip bolt 10；2) its all bolt 5 is only direct on same pump head B
The cylinder 2 that pressuring action is echoed it on seat board 3 and by the seat board 3 is pressed against (such as Fig. 6 on main bearing seat 1
It is shown), it now should be taken that and tighten up seat board 3 and cylinder head 4, one of them preferable way is using fastening spiral shell
Nail 10 tightens together cylinder head 4 (as shown in Figure 2 and Figure 6) with seat board 3, and the number of trip bolt 10 can depending on concrete condition
With using one, can also use two, can also use more；3) on same pump head B in all bolts 5 part only
Remaining part only compresses the (not shown) of seat board 3 to compression cylinder lid 4 simultaneously；Being different from conventional air compressor must use
Seat board 3 or/and cylinder head 4 are fastened to the structure's practice on main bearing seat 1 by no less than four bolts 5, in the present invention only
Need using three bolts 5 or only need using two bolts 5, even only need can be complete using a bolt 5
Into same fastening seat board 3 and the function of cylinder head 4, some advantages that arise therefrom is obvious：On the one hand pressure can be reduced
The number of components of contracting machine and the workload for therefore reducing machining and installation, on the other hand can letter due to reducing installation site
Change the structure of main bearing seat 1；The manufacturing cost of compressor can be reduced accordingly first, reduce the making material of compressor, this is
Unquestionable；Secondly the reduction of production link, number of components decline to a great extent also reduce manufacture, install and debugging process in go out
The probability of existing mistake, or even material difference degree between the such as each bolt 5 of core stressed member can also reduce；In other words
Say, the cylinder head 4 of the air compressor based on above-mentioned good effect and the fastening structure of seat board 3, not only contribute to and
And the uniformity for effectively improving each tautness of bolt 5 proposed in the present invention can be realized completely, effectively improves compressor
The purpose of functional reliability.
In the present invention, the pump head B of compressor quantity could be arranged to two, and in the two pump heads B at least
It is that respective pump head B seat board 3 or/and cylinder head 4 are fastened into its main shaft using no more than two bolts 5 to have a pump head B
Situation in bearing 1, while the two pump heads B shares a motor A to be driven and split the two ends in motor A,
Also the two pump heads B is arranged at motor A two axial ends (as shown in Fig. 1 to Figure 14), now correspondingly each pump head B is equal
It is configured with a main bearing seat 1 and is respectively arranged in a motor A termination, best circumstance when using above-mentioned two pump heads B layouts
It is that now compressor is duplex cylinder compressor, i.e. compressor has and only two 2, two, cylinder, 9, two, piston, 8, two masters of connecting rod
(each pump head B typically only configures a base bearing 6 and is built on its main bearing seat 1 bearing 6, if pump head B needs configuration two
The individual base bearing 6 and present invention will regard the two close to the base bearing 6 of configuration as one etc. when being closely built in its main bearing seat 1
The base bearing 6 of effect i.e. belong to the category that pump head B only configures a base bearing 6), (two ends of the bent axle 7 are each for a bent axle 7
It is provided with a crank-pin to drive link 8).It is pointed out that using double pump head B and split in motor A two
The two choicests layout compressor that the duplex cylinder compressor at end is as nowadays commonly called as, the compressor of pattern layout can be to greatest extent
Land productivity motor A working characteristics, and can preferably be laid out design；Especially, an optimal two choicests layout compression
The situation of machine is that duplex cylinder compressor has and only two pump head B are to use to be no more than two bolts 5 by respective pump head B
Seat board 3 or/and cylinder head 4 are fastened on its pump head B main bearing seat 1 and by two pump head B's of the duplex cylinder compressor
The progress of work arranges difference in operation phase, and no less than 45 degree, (difference is no less than in other wordsRadian), now mean to work as it
In piston 9 in a pump head B run to top dead centre after must after bent axle 7 reruns more than or equal to 45 degree angles second pump
Piston 9 in head B gets to top dead centre, is that can separate the two pump heads B maximum compression the advantages of such way
One section of phase and do not overlap as far as possible, so to the functional reliability of compressor and to reduce noise highly beneficial, especially
When the two pump heads B progress of work is arranging difference 180 degree (both phase by pi radians in other words) on running phase,
Now mean the piston of another pump head B when one of pump head B piston 9 is in compression procedure or exhaust schedule
9 are in suction stroke, and vice versa；Certainly, using this two pump heads B progresses of work phase difference 180 degree layout
Two choicest duplex cylinder compressors will have the more stable course of work.
In the present invention, seat board 3 or/and cylinder head 4 are fastened on main bearing seat 1 using two bolts 5 for all
Pump head B, wherein at least one pump head B two bolts 5 can be arranged in by the both sides of the affiliated cylinders 2 of pump head B, change sentence
This two bolts 5 are talked about by pump head B cylinder 2 to be separated and in the bolt axis Oa of this two bolts 5 and pump head B
Planes that the cylinder-bore axis Ob of cylinder 2 is parallel and this three axis coexist, what Fig. 5 was provided is exactly this situation；Need to solve
Release, compressor is laid out using vertical structure in Figure 5, and now bolt 5 and cylinder 2 are in vertical state, so
Bolt axis Oa and cylinder-bore axis Ob, which degenerates, in top view shown by Fig. 5 is collected as a point, and this two bolt axis
That plane that Oa and cylinder-bore axis Ob is coexisted now also assembles L in alignment just.It is further to note that this
Diameter parallel described in invention is one and contains concept, because foozle, rigging error, stress become between its each axis of permission
Shape error and temperature deformation error and cause occur it is a little not parallel, as long as each diameter parallel error amount is limited in conventional machine
Them are regarded to be parallel within tool Engineering Error scope, such as are investigated in the range of the height dimension of cylinder 2 (i.e. along cylinder
Axes O b direction is measured), if 5 percent of each diameter parallel error amount without departing from the diameter of cylinder 2 regard these axis
To be parallel to each other；Similarly, three axis described in present invention coexistence, one plane is also a containing concept, and it allows each
Cause the theoretical uncommon of appearance between individual axis because of foozle, rigging error, stress deformation error and temperature deformation error
Face, as long as being investigated in the range of the height dimension of cylinder 2, if being put down with two ideals at intervals of the diameter 5 percent of cylinder 2
Row plane can cover completely clamps them without if exposed, you can regards these axis to be in co-planar.Also need to especially
, it is noted that the bolt axis Oa of two bolts 5 is parallel with the cylinder-bore axis Ob of cylinder 2 in pump head B and this three axis
The plane that coexists is an extraordinary distribution form, it is well known that bolt 5 can be compressed seat board 3 by pretightning force
On the cylinder 2 while cylinder 2 can be pressed on main bearing seat 1, when compressor proceeds to compression travel, gas is pressed
Counteragent will necessarily be produced after contracting, the making a concerted effort along the cylinder-bore axis Ob of cylinder 2 side of the counteragent is understood by mechanical knowledge
To being applied on seat board 3, and eventually it is delivered on bolt 5, it should be noted that be similarly subjected to gas compression on piston 9
The effect of power simultaneously final can also be delivered to bolt 5 (its bang path is：Piston 9 → connecting rod, 8 → bent axle, 7 → base bearing, 6 → main shaft
1 → bolt of bearing 5), it is seen that compressed gas derive from counteragent make a concerted effort to be bound to be delivered on bolt 5, now bolt 5 will be held
By powerful active force but still need to possess enough fastening forces to keep cylinder head 4, seat board 3, cylinder 2, main bearing seat 1
Between occur without and release, as the cylinder-bore axis Ob tri- of cylinder 2 in the bolt axis Oa and its pump head B for meet two bolts 5
During coplanar this condition of person, then bolt 5 only by pure responsive to axial force without being acted on by additional moment, now spiral shell
The force-bearing situation of bolt 5 will not deteriorate, therefore can improve the functional reliability of bolt 5.For using two bolts 5 by seat board
3 or/and cylinder head 4 be fastened to pump head B on main bearing seat 1, if this two bolts 5 are arranged in the two of the affiliated cylinders 2 of pump head B
By side and bolt axis Oa is parallel and coplanar with cylinder-bore axis Ob, then this plane can be allowed to be overlapped with the plane of waving of connecting rod 8,
So not only improve the force-bearing situation of bolt 5 but also can be simplified the structure of main bearing seat 1.
In a preferred embodiment of the invention (as shown in Figures 3 to 5), at least in a pump head B, by its valve seat
The quantity for the bolt 5 that plate 3 or/and cylinder head 4 are fastened on its main bearing seat 1 is set to two altogether, and in this two bolts 5
At least one directly effect is pressed in pump head B cylinder head 4, and by the cylinder head 4 by seat board 3 and cylinder 2
It is pressed against main bearing seat 1；Among this case, the sealing between seat board 3 and cylinder head 4 can be independent of other any measures
It can realize, naturally it is also possible to cylinder head 4 and seat board 3 are fastened together using trip bolt 10, then both is close
Sealing property will be relatively reliable.
(as shown in Figure 6) in another preferred embodiment of the invention, at least in a pump head B, by its seat board 3
Or/and it is two altogether that cylinder head 4, which is fastened to the quantity of the bolt 5 on its main bearing seat 1, and in this two bolts 5 at least
There is a directly effect to be pressed on pump head B seat board 3, and cylinder 2 is pressed on by main bearing seat by the seat board 3
On 1, in order to prevent cylinder head 4 from departing from seat board 3, the preferable way that can now use is, tight using at least one
Gu screw 10 tightens together seat board 3 with cylinder head 4.
In the present invention, there can be at least one pump head B, at least arrange there is a bolt 5 to pass through crossbeam on pump head B
The active force of the bolt 5 is applied separately to two different parts in pump head B cylinder head 4, the crossbeam knot by structure 11
Structure 11 can directly open up (beam structure 11 now is integral crossbeam, as shown in Figure 7), the crossbeam knot in cylinder head 4
Structure 11 can also be made up of an independent beam 11a, and (beam structure 11 now is split type crossbeam, such as Fig. 8 institutes
Show), directly being opened up in cylinder head 4 can be realized by engraved structure 43；It should be noted that the effect by the bolt 5
Power is applied separately to the way of two different parts in cylinder head 4, and its advantage is that the distribution for making active force more tends to extensively
Rationally, it can improve stressed member such as cylinder head 4 and the stress distribution of seat board 3, and can improve between cylinder head 4 and seat board 3
Sealing.Similarly, in the present invention it is possible to have at least one pump head B, at least arrange have a bolt 5 logical on pump head B
Cross two different parts that the active force of the bolt 5 is applied separately to pump head B seat board 3 by beam structure 11, the horizontal stroke
Girder construction 11 can directly open up (the as integral crossbeam of beam structure 11 now certainly, such as Fig. 9 institutes on seat board 3
Show), beam structure 11 can also be made up of an independent beam 11a, and (beam structure 11 now is split type certainly
Crossbeam, as shown in Figure 10), directly being opened up on air valve seat board 3 can also be realized by engraved structure 43.
In the present invention, there can be at least one pump head B, seat board 3 or/and cylinder head 4 are fastened to base bearing by it
The quantity of bolt 5 on seat 1 only one altogether, is provided with pump head B with the bolt 5 across the relative side of cylinder 2
Hook members 12 link together cylinder head 4 and main bearing seat 1, and the hook members 12 can be separate piece (such as Fig. 1 institutes
Show) or the hook members 12 and main bearing seat 1 be structure as a whole and make (not shown), the quantity of hook members 12 can
There can also be two to be one or there are more；It should be noted that on the one hand the purpose for setting configuration component 12 is can
On the other hand it is that can improve installation effectiveness to reduce the quantity of bolt 5, i.e., only need to tighten lesser amount of bolt 5 can be complete
Into fastening seat board 3 or/and the task of cylinder head 4.Similarly, in the present invention it is possible to have at least one pump head B, it is by valve
Seat board 3 or/and cylinder head 4 be fastened to the bolt 5 on main bearing seat 1 quantity altogether only one, in pump head B with the spiral shell
Bolt 5 is provided with hook members 12 across the relative side of cylinder 2 and links together seat board 3 and main bearing seat 1, the hook-type
Component 12 can be that separate piece (as shown in Figure 2) or the hook members 12 are structure as a whole making (in figure with main bearing seat 1
It is not shown), cylinder head 4 and seat board 1 in pump head B can be linked together using trip bolt 10.Or same road
Reason, in the present invention, all pump head B being fastened to seat board 3 or/and cylinder head 4 using two bolts 5 on main bearing seat 1 can
With allow wherein at least one pump head B two bolts 5 be disposed in parallel in cylinder 2 the same side and across the cylinder 2 and this two
The relative side of root bolt 5 is provided with hook members 12 and links together cylinder head 4 or seat board 3 with main bearing seat 1, described
Making that hook members 12 can be separate piece (as shown in figure 14) or the hook members 12 and main bearing seat 1 is structure as a whole
(not shown).
In the present invention, can be with together with order to which main bearing seat 1 more preferably more accurately can be located by connecting with motor A
Convex seam 1a is set on main bearing seat 1, and the main bearing seat 1 passes through the convex seam 1a and the motor A of compressor cylinder
Shell is located by connecting, and for this motor A barrel shell can be set to extend slightly out some relative to motor A stator and sunk as concave shaped
Platform A1, the spill sink platform A1 main body be actually motor A barrel shells inwall (referring to Fig. 4 and Figure 15), the concave shaped sinks platform A1
Docked with the convex seam 1a on main bearing seat 1 and form location fit；In addition, can also be set on main bearing seat 1
The structure (not shown) of spill seam, and allow the outer peripheral edge of the spill seam and motor A barrel shells (equivalent to outer rim boss)
Implementation is located by connecting, that is, allows motor A barrel shell outer rim to position within the spill seam on embedded main bearing seat 1；Need to illustrate
, for the duplex cylinder compressor of two choicests layout, can both be set simultaneously in motor A two ends using main bearing seat 1
Put the heavy platform A1 of convex seam 1a gas-distributing motor A barrel shells spill fit structure form, can also be used simultaneously in motor A two ends
Main bearing seat 1 set spill seam gas-distributing motor A barrel shells outer peripheral edges fit structure form (not shown), can also be in motor
A two ends one end using main bearing seat 1 set convex seam 1a and motor A barrel shells spill sink structure type that platform A1 matches and
The structure type for setting spill seam to match with motor A barrel shells outer peripheral edge using main bearing seat 1 in the other end simultaneously (is not shown in figure
Go out).
In the present invention, it is reliable in order to save material and installation, structure of the cylinder 2 for thin wall cylinder shelly can be used, together
When allow the cylinder 2 that there is the i.e. double-turnup 2a of two flange 2a structure type (as shown in Fig. 4, Fig. 7 to Figure 10), that is, the cylinder
2 all there are flange 2a structure in its two axial ends；Cylinder 2 is advantageous to radiate using thin wall cylinder shell structure, to improving compressor
Functional reliability it is favourable, while thin-walled barrel shell can use section bar make or using Sheet drawing shaping obtain, be advantageous to
Produce in batches and reduce it and manufacture cost；Relative to traditional only single flange 2a cylinder 2 (such as Fig. 1 to Fig. 3, Fig. 6,
Shown in Figure 11 and Figure 14), cylinder 2 can at least bring three benefits using double-turnup 2a structure：First benefit is that worker exists
During installation side (thin wall cylinder shelly cylinder 2 of the tradition with single flange 2a, its unique flange 2a quilt are selected without being carried out to cylinder 2
Arrange towards the side of seat board 3 and prevent high pressure gas leakage with the sealing strip snug fit of the seat board 3, must during assembling
Flange 2a direction must be seen clearly and can not be anti-loaded by its, but among actual production process, filling by mistake still occurs often in worker
Towards and make it that compressor breaks down, that is, reduce the functional reliability of compressor), without selecting the way on side obviously can be with
Raising work efficiency is simultaneously cost-effective, while also reduces the situation for dress by mistake occur；Article 2 benefit be no matter to main bearing seat 1 or
To seat board 3, cylinder 2 and their contact area are all bigger, compared with the single flange 2a of tradition structure, double-turnup 2a knot
It is more firm that structure is not only installed, and the numerical value of specific contact pressure also will be smaller between them, therefore can improve these installed parts
Reliability, in other words can equally improve the functional reliability of compressor；Article 3 benefit is can to strengthen cylinder 2 to resist change
The ability of shape, due to being thin shell-like structure, rigidity smaller, its resistance to compression (caused by the pretightning force of bolt 5) and the tension of cylinder 2 itself
The ability of (caused by gas compression power) is more small and weak, it is clear that the structure of one flange 2a of increase more can significantly improve cylinder 2
Composite bending modulus, in other words the double-turnup 2a structures of cylinder 2 of the present invention and same shell structure traditional single flange 2a structures
Compared to there will be more preferable rigidity, that is, mean that the cylinder 2 of double-turnup 2a structures of the present invention has more preferable functional reliability.
To sum up, the outstanding advantages that have compared with prior art of the present invention are：Same pump head B, which is used, is no more than three bolts 5
Cylinder head 4 and seat board 3 are fastened on main bearing seat 1, compared with the structure that no less than four bolts 5 of tradition fasten significantly
Ground reduces the number of parts of compressor, on the one hand reduces the process and workload of processing, on the other hand decreases installation
With the link of debugging, while reduce the difference tendentiousness with batch part material, especially, installation and compressor crank shaft 7 in place
Main bearing seat 1 also obtained greatly simplifying, thus can effectively improve the uniformity of each tautness of bolt 5, while can carry
The functional reliability of high compressor, the manufacturing cost for reducing compressor, the making material for reducing compressor.
Above-described embodiment is only one of presently preferred embodiments of the present invention, is not limited the scope of the invention according to this, therefore：
The various equivalence changes that all structures under this invention, shape, principle are done, all should be covered by within protection scope of the present invention.
Claims (4)
1. the fastening structure of a kind of air compressor cylinder lid and seat board, it include main bearing seat, cylinder, seat board,
Cylinder head and the bolt being fastened to seat board or/and cylinder head on main bearing seat, cylinder are placed in seat board and main bearing seat
Between, seat board is placed between cylinder head and cylinder, cylinder is pressed against on main bearing seat by seat board, it is characterised in that：At least
Participate in forming the same pump head of compressor jointly by a main bearing seat, a cylinder, a seat board and a cylinder head,
And the quantity for the bolt that its seat board or/and cylinder head are fastened on its main bearing seat among the pump head is no more than three
Root；
At least one pump head, at least a bolt is applied the active force of the bolt by beam structure respectively on the pump head
Two different parts of the pump head cylinder head are added to, the beam structure directly opens up in cylinder head or the beam structure passes through
One independent beam is formed；Or
At least one pump head, up to there is a few bolt to apply the active force of the bolt respectively by beam structure in the pump head
Two different parts of the pump head seat board are added to, the beam structure directly opens up on seat board or the beam structure passes through
One independent beam is formed；Or
At least one pump head, the quantity of its bolt being fastened to seat board or/and cylinder head on main bearing seat only have one,
The relative side of cylinder hook members are provided with the bolt in the pump head to link cylinder head and main bearing seat one
Rise, the hook members are separate piece or the hook members and main bearing seat is structure as a whole making；Or
At least one pump head, the quantity of its bolt being fastened to seat board or/and cylinder head on main bearing seat only have one,
The relative side of cylinder hook members are provided with the bolt in the pump head to link seat board and main bearing seat one
Rising, the hook members are separate piece or the hook members and main bearing seat is structure as a whole making, while in the pump head
Cylinder head and seat board are linked together using trip bolt.
2. the fastening structure of air compressor cylinder lid as claimed in claim 1 and seat board, it is characterised in that：It is all to adopt
The pump head being fastened to seat board or/and cylinder head with two bolts on main bearing seat, two of wherein at least one pump head
Bolt is disposed in parallel in the same side of cylinder and two relative sides of bolt of the cylinder and this is provided with hook members
Cylinder head or seat board are linked together with main bearing seat, the hook members are separate piece or the hook members and main shaft
Bearing is structure as a whole making.
3. the fastening structure of air compressor cylinder lid as claimed in claim 1 and seat board, it is characterised in that：In master
Convex seam or spill seam are provided with bearing block, the main bearing seat passes through these convex seams or spill seam and compression
The barrel shell of electromechanical machine is located by connecting.
4. the fastening structure of the air compressor cylinder lid and seat board as described in claims 1 to 3 any one, it is special
Sign is：The cylinder in thin wall cylinder shelly and has the structure type of double-turnup in its two ends.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510812895.3A CN105298807B (en) | 2015-11-21 | 2015-11-21 | A kind of fastening structure of air compressor cylinder lid and seat board |
| PCT/CN2015/097273 WO2017084133A1 (en) | 2015-11-21 | 2015-12-14 | Secure connection structure for cylinder head and valve seat plate of air compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510812895.3A CN105298807B (en) | 2015-11-21 | 2015-11-21 | A kind of fastening structure of air compressor cylinder lid and seat board |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105298807A CN105298807A (en) | 2016-02-03 |
| CN105298807B true CN105298807B (en) | 2017-12-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510812895.3A Active CN105298807B (en) | 2015-11-21 | 2015-11-21 | A kind of fastening structure of air compressor cylinder lid and seat board |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105298807B (en) |
| WO (1) | WO2017084133A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762550A (en) * | 2017-03-03 | 2017-05-31 | 浙江鸿友压缩机制造有限公司 | A kind of lightweight pump head mounting and the oil-free air compressor equipped with the pump head mounting |
| CN110173418A (en) * | 2019-01-10 | 2019-08-27 | 苏州欧圣电气股份有限公司 | A kind of air pressure pump and air compressor machine |
| CN109773362B (en) * | 2019-03-28 | 2023-09-26 | 昆山华恒焊接股份有限公司 | Compressor welding system |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63183287A (en) * | 1987-01-23 | 1988-07-28 | Matsushita Refrig Co | Reciprocating compressor |
| JPS63230975A (en) * | 1987-03-19 | 1988-09-27 | Sanyo Electric Co Ltd | Closed type compressor |
| GB2314593B (en) * | 1996-06-28 | 1999-11-10 | Thomas Industries Inc | Two-cylinder air compressor |
| GB2463824B (en) * | 2005-05-17 | 2010-06-09 | Thomas Industries Inc | Pump improvements |
| CN202468207U (en) * | 2012-03-09 | 2012-10-03 | 张立武 | Oil-free air compressor of ceramic cylinder |
| CN102748270A (en) * | 2012-05-30 | 2012-10-24 | 李官镐 | Belt driving oil-free wave type air compressor with dustproof structure |
| CN203297059U (en) * | 2013-06-08 | 2013-11-20 | 宁波华生压缩机有限公司 | Mute oil-free type air compressor |
| CN203297068U (en) * | 2013-06-08 | 2013-11-20 | 宁波华生压缩机有限公司 | Low-noise stable type oil-free compressor |
| CN205349669U (en) * | 2015-11-21 | 2016-06-29 | 浙江鸿友压缩机制造有限公司 | Fastening connection structure of air compressor cylinder head and disk seat board |
-
2015
- 2015-11-21 CN CN201510812895.3A patent/CN105298807B/en active Active
- 2015-12-14 WO PCT/CN2015/097273 patent/WO2017084133A1/en active Application Filing
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| Publication number | Publication date |
|---|---|
| WO2017084133A1 (en) | 2017-05-26 |
| CN105298807A (en) | 2016-02-03 |
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Denomination of invention: A fastening connection structure for the cylinder head and valve seat plate of an air compressor Effective date of registration: 20231229 Granted publication date: 20171229 Pledgee: Wenling branch of the Industrial Commercial Bank of China Ltd. Pledgor: ZHEJIANG HONGYOU AIR COMPRESSOR MANUFACTURING Co.,Ltd. Registration number: Y2023980074319 |
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