CN202498507U - Device for assembling and disassembling air valve of junk head of engine - Google Patents
Device for assembling and disassembling air valve of junk head of engine Download PDFInfo
- Publication number
- CN202498507U CN202498507U CN2012200703910U CN201220070391U CN202498507U CN 202498507 U CN202498507 U CN 202498507U CN 2012200703910 U CN2012200703910 U CN 2012200703910U CN 201220070391 U CN201220070391 U CN 201220070391U CN 202498507 U CN202498507 U CN 202498507U
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- curved boom
- screw rod
- valve
- screw
- cylinder head
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Abstract
The utility model provides a device for assembling and disassembling the air valve of the junk head of an engine, which comprises a supporting part. The two longitudinal ends of the supporting part are respectively provided with a first curved boom and a second curved boom. After being curved, the first curved boom and the second curved boom are transversely extending in the same direction. A screw on the first curved boom and capable of axially moving is threadedly matched with the first curved boom. One end of the screw, which stretches into the space between the first curved boom and the second curved boom, is provided with a pressure head. The pressure head comprises an upper ring and a lower ring. The upper ring and the lower ring are connected through two symmetrical support columns to form a hollow integrated structure. The pressure head capable of rotating circumferentially is in positioning connection with the end shaft of the screw through the upper ring. The other end of the screw is provided with a structure for wrenching and rotating the screw. The second curved boom is provided with a crown pillar. The central axis of the crown pillar and the central axis of the screw are positioned on the same straight line. Due to the adoption of the device, the air valve of the junk head of an engine can be assembled or disassembled by only one person without any special equipment or frock clamps. The device has the advantages of convenient and easy assembly and disassembly, simple structure and low manufacturing cost.
Description
Technical field
The utility model relates to field of tool, particularly a kind of engine cylinder head valve tool for fastening/disengaging.
Background technology
The valve of motorcycle engine cylinder head or general-purpose petrol engine cylinder head is installed; Need valve is passed the valve guide bushing that cylinder head is provided with from the cylinder head combustion chamber, put valve spring, again valve cap is being pasted valve spring at the traversing through end of valve; Make the valve spring compression through pressing down valve cap; And then the assembling valve collet, through the locking of valve collet, the restriction valve cap withdraws from.In this process; Because the spring rate of valve spring is bigger; The pressure ratio that needs is bigger, when making the assembly cylinder head in enormous quantities, is that the frock clamp of cylinder head through special setting is fixed on the workbench of special equipment; The power of granting through dynamic power machine presses down valve cap and makes the valve spring compression, assembles valve collet then; But, for not having the environment assembling of Special Equipment, dismounting cylinder head valve, and countercylinder head valve keeps in repair, when changing; The completion of this work just has big difficulty, generally is to cooperate through two people, and a people adopts clamp firmly to press down valve cap and makes the valve spring compression; Another people valve collet that installs or removes during assembling, is responsible for personnel hand or clamp that the personnel's of mounting or dismounting valve collet sight line often is responsible for pressing down and is blocked; The installation of valve collet is difficult for putting in place; Operation is extremely inconvenient, and the also landing easily of less valve collet, and downforce also is not easy to grasp control; Sometimes also can cause the part bullet to fly to wound the people, cause security incident because of pressing down slippage.When especially installing and removing to the valve of monolithic cylinder head, its difficulty is just bigger.Structure (like Fig. 1) because of the monolithic cylinder head; It is the structure that cylinder head body and cylinder-head cover are formed in one; Only be provided with two valve installing holes 6 on the cylinder head 12, valve 7 11 passes from the combustion chamber, puts valve spring 10; Push down valve spring 10 with valve cap 9, valve collet 8 is arranged in valve cap 9 and locks valve; Only can carry out during assembling through narrow and small valve installing hole 6; Valve at the environment countercylinder head that does not have Special Equipment assembles, dismantles, and when maintenance, replacing, relies on two people's compounding practice; Its sight line and operating space are affected especially; Assembling, dismounting are wasted time and energy especially, concerning the personnel of lack of skill, almost are difficult to accomplish mounting or dismounting.
Summary of the invention
The purpose of the utility model is the deficiency that exists to prior art; A kind of engine cylinder head valve tool for fastening/disengaging is provided, and it is employed in the support portion and establishes first curved boom and second curved boom, threaded engagement screw rod on first curved boom; The pressure head of screw rod end assembling hollow structure is established fore-set on second curved boom.It does not need special equipment and frock clamp, only needs a people just can use this tool for fastening/disengaging the engine cylinder head valve is assembled or dismantles, and mounting or dismounting are easily convenient, and simple in structure, and cost of manufacture is low.
The purpose of the utility model is achieved in that and comprises the support portion; Vertical two ends of support portion have respectively after the bending to first curved boom and second curved boom of equidirectional horizontal expansion, and the spacing distance between said first curved boom and second curved boom is greater than the height of cylinder head, but the screw rod of threaded engagement one axially-movable on said first curved boom; One end of screw rod stretches between first curved boom and second curved boom; This end is provided with a pressure head, and said pressure head is for comprising ring and following ring, the last continuous integrative-structure that forms hollow of support columns that encircles and pass through two symmetries down between the ring; Spacing between last ring and the following ring is greater than the axial length of valve collet; The diameter of bore of following ring is greater than the external diameter of valve collet with less than the external diameter of valve cap, and what pressure head can circumferentially rotate through last ring is located by connecting with the screw rod end axis, and the other end of screw rod is provided with and is used to pull the structure that screw rod rotates; Said second curved boom is provided with a fore-set, and the axis of this fore-set and screw rod axis are positioned at same straight line.
Said screw rod end is provided with a detent, and going up of pressure head encircles in the groove that is fastened in the setting of screw rod end.
Said screw rod end face is provided with axial screw, and the ring of going up of pressure head is connected the screw rod end face through screw.
It is the jack that screw end head radially is provided with that being used to of screw rod pulled the structure that screw rod rotates.
It is square toes or the six rib heads that screw end head is provided with that being used to of screw rod pulled the structure that screw rod rotates.
The axle side of said pressure head is " worker " font structure, the space that the opening of " worker " font both sides passes through for operation.
The termination of said first curved boom, second curved boom is respectively equipped with thread bush with threaded hole; The screwed hole of two thread bush is same axis; The screwed hole of thread bush cooperates with screw flight on first curved boom; Screw rod can be moved axially through rotating, and the screwed hole of thread bush is threaded with fore-set on second curved boom.
A said fore-set and pressure head end in opposite directions is made as sphere.
Adopt such scheme that the utility model engine cylinder head valve tool for fastening/disengaging is had the following advantages:
1. vertical two ends of support portion have respectively after the bending to first curved boom and second curved boom of equidirectional horizontal expansion, and the spacing distance between said first curved boom and second curved boom is greater than the height of cylinder head.Like this can be through the spacing distance between first curved boom and second curved boom, for stretching into, a side of cylinder head steps down, and make first curved boom and second curved boom can arrive the operating position.
2. but the screw rod of threaded engagement one axially-movable on said first curved boom; One end of screw rod stretches between first curved boom and second curved boom; This end is provided with a pressure head, and said pressure head is for comprising ring and following ring, the last continuous integrative-structure that forms hollow of support columns that encircles and pass through two symmetries down between the ring; Spacing between last ring and the following ring is greater than the axial length of valve collet; The diameter of bore of following ring is greater than the external diameter of valve collet with less than the external diameter of valve cap, and what pressure head can circumferentially rotate through last ring is located by connecting with the screw rod end axis, and the other end of screw rod is provided with and is used to pull the structure that screw rod rotates; Said second curved boom is provided with a fore-set, and the axis of this fore-set and screw rod axis are positioned at same straight line.Can pass through rotating screw bolt like this, screw axial is moved, dwindle the distance between the fore-set on the pressure head and second curved boom; Clamp valve from two ends up and down, be rotated further screw rod then, press down valve cap through pressure head; Make the valve spring compression, let the valve upper end pass, expose the position that valve collet is installed from the endoporus that pressure head encircles down; Because screw rod can latched position after stopping operating, this be just can with valve collet from the ring of pressure head and the space between time encircling be assembled on the valve backward rotation screw rod then; Make valve spring recover former state, valve collet is formed in valve cap the valve locking, accomplish valve and install.During dismounting cylinder head valve, through rotating screw bolt with the valve spring compression after, expose valve collet, can valve collet be taken off, just can take off valve from cylinder head in regular turn.
3. adopt such structure, make the simple in structure of this tool for fastening/disengaging, make easily, cost is low.While is easy to carry again, only need a people just can under the situation that does not have Special Equipment and frock clamp, accomplish the assembling or the dismounting of engine cylinder head valve, and mounting or dismounting conveniently, easily.Be particularly useful for the valve installation of small lot batch manufacture cylinder head and maintenance, the replacing of cylinder head valve.Adopt this tool for fastening/disengaging mounting or dismounting cylinder head valve, can reduce operator's labour intensity, increase work efficiency.
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Description of drawings
Fig. 1 is the structural representation of engine monolithic cylinder head;
Fig. 2 is the sectional structure chart of the utility model;
Fig. 3 is the utility model structural representation;
Fig. 4 is that the A of Fig. 3 is to view;
Fig. 5 is that the B-B of pressure head among Fig. 3 is to profile;
Fig. 6 is that the C-C of pressure head among Fig. 3 is to profile;
Fig. 7 is the user mode figure of the utility model.
In the accompanying drawing, 1 is fore-set, and 2 is pressure head, and 2a is last ring, and 2b is for encircling down, and 2c is a support column; 2d is an opening, and 3 is screw rod, and 4 is jack, and 5 is the support portion, and 5a is first curved boom, and 5b is second curved boom; 6 is the valve installing hole, and 7 is valve, and 8 is valve collet, and 9 is valve cap, and 10 is valve spring; 11 is the combustion chamber, and 12 is cylinder head, and 13 is thread bush, and 14 is round bar, and 21 is endoporus.
The specific embodiment
Referring to Fig. 2 to Fig. 6; A kind of embodiment of engine cylinder head valve tool for fastening/disengaging; This engine cylinder head valve tool for fastening/disengaging comprises support portion 5; Vertical two ends of support portion 5 have respectively after the bending to the first curved boom 5a and the second curved boom 5b of equidirectional horizontal expansion, and the spacing distance between the said first curved boom 5a and the second curved boom 5b is greater than the height of cylinder head.But the said first curved boom 5b goes up the screw rod 3 of threaded engagement one axially-movable, and an end of screw rod 3 stretches between the first curved boom 5a and the second curved boom 5b, and this end is provided with a pressure head 2.Said pressure head 2 is for comprising ring 2a and encircling 2b down; Pass through the integrative-structure of the continuous formation of the support column 2c hollow of two symmetries between last 2a of ring and the following ring 2b; Spacing between last ring 2a and the following ring 2b is greater than the axial length of valve collet; Endoporus 21 diameters that encircle 2b down are greater than the external diameter of valve collet with less than the external diameter of valve cap, and pressure head 2 is located by connecting with screw rod 3 end axis through what last ring 2a can circumferentially rotate.Said screw rod 3 ends are provided with a detent, and the ring 2a that goes up of pressure head 2 is fastened in the groove of screw rod 3 ends setting, forms relatively turnable axle and is located by connecting.When pressure head 2 assembles with screw rod 3, can be enclosed within on the groove of screw rod 3 behind the reducing that make it to expand, be connected on the screw rod 3 through the cooling undergauge earlier with ring 2a heating on the pressure head.The axle side of said pressure head 2 is " worker " font structure, the space that the opening 2d of " worker " font both sides passes through for operation.The other end of screw rod 3 is provided with and is used to pull the structure that screw rod rotates, and being used to of said screw rod 3 pulled the jack 4 that structure that screw rod rotates can radially be provided with for screw rod 3 terminations, forms the arm of force through inserting round bar, just can easily pull screw rod and rotate; Perhaps being used to pull the structure that screw rod rotates can be square toes or the six rib heads that screw rod 3 terminations are provided with also, adopts spanner can easily pull screw rod and rotates.The said second curved boom 5b is provided with a fore-set 1, and this fore-set 1 is fixed on through being threaded on the second curved boom 5b, through being threaded, makes fore-set 1 change the fore-set 1 that varies in size according to the cylinder head and the valve of different size specifications.The axis of this fore-set 1 and screw rod 3 axis are positioned at same straight line, do not depart from when fore-set 1 direction moves to guarantee screw rod 3, make the pressure head 2 can be along straight line compression valve spring.
Be the weight and reduction material cost that alleviates this tool for fastening/disengaging; Said support portion 5 comprises that the first curved boom 5a and the second curved boom 5b can adopt steel plate cutting to be made; And be respectively equipped with thread bush with threaded hole 13 in the termination of the said first curved boom 5a, the second curved boom 5b; Two thread bush 13 are weldingly fixed on respectively on the first curved boom 5a, the second curved boom 5b, and the screwed hole of two thread bush 13 is same axis.The first curved boom 5a goes up the screwed hole and screw rod 3 threaded engagement of thread bush 13; Screw rod 3 can be moved axially through rotating; The screwed hole that the second curved boom 5b goes up thread bush 13 is threaded with fore-set 1; Adopt thread bush 13 can guarantee the fastness of the screw rod 3 and the first curved boom 5a threaded engagement, guarantee the fastness that fore-set 1 is threaded with the second curved boom 5b.
The utility model not only is confined to the foregoing description, and said screw rod 3 end faces also can be provided with axial screw, and the ring 2a that goes up of pressure head 2 is connected screw rod 3 end faces through screw, can form pressure head 2 equally and be located by connecting with screw rod 3 relatively turnable axles.
For making fore-set 1 when propping up valve, can not damage valve and better to neutrality, said fore-set 1 is made as sphere with pressure head 2 end in opposite directions.
Referring to Fig. 7, the utility model tool for fastening/disengaging assembles in order to adopt, the enforcement state of the valve of the monolithic cylinder head of dismounting motorcycle engine, at first valve 7 is contained in the conduit of cylinder head 12; Put valve spring 10 in valve 7 upper ends, valve cap 9 skies are enclosed within valve 7 upper ends and push down valve spring 10, then the support portion 5 of this tool for fastening/disengaging are drawn close from a side of cylinder head assembling valve; Make the fore-set 1 on second curved boom prop up the valve bottom, make the screw rod 3 on first curved boom face toward the valve installing hole, the jack that will insert on the screw rods 3 as the round bar 14 of the arm of force from the cylinder head combustion chamber; Utilize round bar 14 to pull screw rod 3 rotations and move, make the pressure head 2 on the screw rod 3 push down valve cap 9, the endoporus of 2 times rings of the corresponding pressure head in the upper end of valve 7 to the valve position; Be rotated further screw rod 3, press down valve cap 9, make valve spring 10 compressions through pressure head 2; The position of exposing valve 7 upper ends assembling valve collet 8; Just can be easily opening 2d from the pressure head 2 valve collet 8 is stuck in the annular groove of valve upper end, the backward rotation screw rod 3 then, make valve spring 10 recover former states; Just can valve collet 8 be locked valve 7 in valve cap 9, accomplish valve and install.As will the valve that assemble be dismantled down from cylinder head, after through rotating screw bolt 3 valve spring 10 being compressed, expose valve collet 8, can valve collet 8 be taken off, just can take off valve 7 from cylinder head 12 in regular turn.
Claims (8)
1. engine cylinder head valve tool for fastening/disengaging is characterized in that: comprise support portion (5), vertical two ends of support portion have after the bending first curved boom and second curved boom to the equidirectional horizontal expansion respectively; Spacing distance between said first curved boom and second curved boom is greater than the height of cylinder head; But the screw rod of threaded engagement one axially-movable on said first curved boom, an end of screw rod stretches between first curved boom and second curved boom, and this end is provided with a pressure head; Said pressure head comprises ring and encircles down; Last ring and down between the ring support columns through two symmetries link to each other and form the integrative-structure of hollow, last ring and encircle down between spacing greater than the axial length of valve collet, the diameter of bore of following ring is greater than the external diameter of valve collet with less than the external diameter of valve cap; What pressure head can circumferentially rotate through last ring is located by connecting with the screw rod end axis; The other end of screw rod is provided with and is used to pull the structure that screw rod rotates, and said second curved boom is provided with a fore-set, and the axis of this fore-set and screw rod axis are positioned at same straight line.
2. engine cylinder head valve tool for fastening/disengaging according to claim 1 is characterized in that: said screw rod end is provided with a detent, and going up of pressure head encircles in the groove that is fastened in the setting of screw rod end.
3. engine cylinder head valve tool for fastening/disengaging according to claim 1 is characterized in that: said screw rod end face is provided with axial screw, and the ring of going up of pressure head is connected the screw rod end face through screw.
4. engine cylinder head valve tool for fastening/disengaging according to claim 1 is characterized in that: it is the jack that screw end head radially is provided with that being used to of screw rod pulled the structure that screw rod rotates.
5. engine cylinder head valve tool for fastening/disengaging according to claim 1 is characterized in that: it is square toes or the six rib heads that screw end head is provided with that being used to of screw rod pulled the structure that screw rod rotates.
6. engine cylinder head valve tool for fastening/disengaging according to claim 1 is characterized in that: the axle side of said pressure head is " worker " font structure, the space that the opening of " worker " font both sides passes through for operation.
7. engine cylinder head valve tool for fastening/disengaging according to claim 1; It is characterized in that: the termination of said first curved boom, second curved boom is respectively equipped with thread bush with threaded hole; The screwed hole of two thread bush is same axis; The screwed hole of thread bush cooperates with screw flight on first curved boom, and screw rod can be moved axially through rotating, and the screwed hole of thread bush is threaded with fore-set on second curved boom.
8. engine cylinder head valve tool for fastening/disengaging according to claim 1 is characterized in that: a said fore-set and pressure head end in opposite directions is made as sphere.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200703910U CN202498507U (en) | 2012-02-29 | 2012-02-29 | Device for assembling and disassembling air valve of junk head of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200703910U CN202498507U (en) | 2012-02-29 | 2012-02-29 | Device for assembling and disassembling air valve of junk head of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202498507U true CN202498507U (en) | 2012-10-24 |
Family
ID=47035133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200703910U Expired - Fee Related CN202498507U (en) | 2012-02-29 | 2012-02-29 | Device for assembling and disassembling air valve of junk head of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202498507U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601763A (en) * | 2012-02-29 | 2012-07-25 | 重庆建设摩托车股份有限公司 | Tool for assembling and disassembling valve of engine cylinder head |
| CN103878739A (en) * | 2014-04-02 | 2014-06-25 | 广西玉柴机器股份有限公司 | Disassembly assembly for valve parts |
| CN106670372A (en) * | 2017-01-09 | 2017-05-17 | 天津鹏鹄科技有限公司 | Automatic centering device for clamp |
-
2012
- 2012-02-29 CN CN2012200703910U patent/CN202498507U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102601763A (en) * | 2012-02-29 | 2012-07-25 | 重庆建设摩托车股份有限公司 | Tool for assembling and disassembling valve of engine cylinder head |
| CN103878739A (en) * | 2014-04-02 | 2014-06-25 | 广西玉柴机器股份有限公司 | Disassembly assembly for valve parts |
| CN103878739B (en) * | 2014-04-02 | 2015-08-19 | 广西玉柴机器股份有限公司 | The disconnect assembly of valve parts |
| CN106670372A (en) * | 2017-01-09 | 2017-05-17 | 天津鹏鹄科技有限公司 | Automatic centering device for clamp |
| CN106670372B (en) * | 2017-01-09 | 2018-09-28 | 天津鹏鹄科技有限公司 | A kind of clamp automatic centring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121024 Termination date: 20150229 |
|
| EXPY | Termination of patent right or utility model |