CN208215258U - A kind of press fitting of engine cylinder head system valve spring portable combined and extracting tool - Google Patents
A kind of press fitting of engine cylinder head system valve spring portable combined and extracting tool Download PDFInfo
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- CN208215258U CN208215258U CN201820714316.0U CN201820714316U CN208215258U CN 208215258 U CN208215258 U CN 208215258U CN 201820714316 U CN201820714316 U CN 201820714316U CN 208215258 U CN208215258 U CN 208215258U
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- spring
- hold
- down bolt
- cylinder cap
- plate
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Abstract
The utility model relates to a kind of press fitting of engine cylinder head system valve spring portable combined and extracting tools, belong to the assembly tool field of engine.The tool includes cylinder cap attachment device, pressing device and spring-compressed plate, and cylinder cap attachment device includes cylinder cap connecting plate；Pressing device includes hold-down bolt, the middle and lower part of hold-down bolt is provided with sleeve, the middle and upper part of hold-down bolt is arranged with support device, the lower part of support device is set in outside sleeve, the top of support device is set in outside hold-down bolt and is provided with gap between hold-down bolt, clamp nut is provided at the top of support device, the lower part of hold-down bolt is provided with attaching nut, and the lower end of hold-down bolt screws in the threaded hole of cylinder cap connecting plate；Spring-compressed plate includes the ring of the vertical plate connecting with pressing device and the lower part for being welded on vertical plate.The utility model can guarantee personnel outdoors, field work when easy to carry, safe operation, it is time saving and energy saving, then improve removal efficiency.
Description
Technical field
The utility model relates to a kind of press fitting of engine cylinder head system valve spring portable combined and extracting tools, belong to and start
The assembly tool field of machine.
Background technique
Internal combustion engine cylinder head sub-assembly assemble, open and inspect or maintenance process in, can all be related to the installation of valve spring with
Disassembly, need to carry out a degree of compression for spring, be mounted on the spring seat of honour conducive to by valve tile or bayonet lock.To guarantee valve
The tightness of sealing, engine spring mostly use higher spring ratio, need to borrow specific purpose tool, equipment using biggish power pair
It is compressed.
Host manufacturer generally is configured with dedicated lathe to realize, using hydraulic cylinder or pneumatic cylinder as dynamic at present
Power makes cylinder cap generate the compression for moving in parallel and realizing to valve spring.Which is limited to the influence of the factors such as place, gas source, mesh
Before can only be realized in host manufacturer or specialized maintenance producer.But disassembly process outdoors, by the shadow of working site and environment
It rings, dedicated press-loading device can not support fortune production scene.
A kind of outdoor at present or more commonly used construction site spring disassembling fixture: using lever principle, by a compression bar,
Two support bar groups at.1, support rod can be replaced by two different lengths and the screw rod of model, different height easy to disassemble
Screw rod is mounted on cylinder cap by valve spring, fixed entire valve spring compressor；2, pressure head can be equipped with not according to different type of machines
With pullover, ensure disassembly when valve spring holder it is secured；3, manual depression compression bar makes spring-compressed, until spring base
Valve collet pop-up in circle, unclamps compression bar, takes out spring.
The major defect of above-mentioned dismantling device is caused high effort for during dismantling high-intensitive valve spring, is pressed pushing
During bar, pressure head be easy to cause the impaired and valve collet of engine valve stem to fly out, and wounds personnel's face, and risk is higher.
Utility model content
The utility model provides a kind of press fitting of engine cylinder head system valve spring portable combined and extracting tool, can protect
Witness person outdoors, field work when easy to carry, safe operation, it is time saving and energy saving, then improve removal efficiency.
In order to solve the above technical problems, the utility model offer technical solution is as follows:
The utility model provides a kind of press fitting of engine cylinder head system valve spring portable combined and extracting tool, including cylinder cap
Attachment device, pressing device and spring-compressed plate, in which:
The cylinder cap attachment device is connect by connecting bolt with cylinder cap, and the cylinder cap attachment device includes cylinder cap connection
Plate, the cylinder cap connecting plate are provided centrally with threaded hole；
The pressing device includes hold-down bolt, and the middle and lower part of the hold-down bolt is provided with sleeve, the hold-down bolt
Middle and upper part be arranged with support device, the lower part of the support device is set in outside the sleeve, the top of the support device
It is set in outside the hold-down bolt and is provided with gap between the hold-down bolt, pressure is provided at the top of the support device
Tight nut can provide required power by screwing the clamp nut for spring-compressed, and the lower part of the hold-down bolt is set
It is equipped with attaching nut, the lower end of the hold-down bolt screws in the threaded hole of the cylinder cap connecting plate；
The spring-compressed plate includes the ring of the vertical plate connecting with the pressing device and the lower part for being welded on the vertical plate
Circle, the spring-compressed plate can be generated under the action of the pressing device and be vertically moved with holddown spring.
Further, axial thrust bearing is provided between the clamp nut and support device of the pressing device.
Further, the side of the support device is provided with threaded skirt, if the side of the vertical plate is provided with
Dry connecting hole is fastened by bolts between the support device and vertical plate.
Further, the spring hanging of the ring of the spring-compressed plate and required compression.
Further, annular groove is provided on the contact surface with the spring seat of honour of the ring.
Further, the screw-in depth of the attaching nut makes the end of the hold-down bolt stretch out the cylinder cap connection
2~3mm of plate.
The utility model has the following beneficial effects:
The engine cylinder head system valve spring portable combined of the utility model is pressed and extracting tool, in use,
Integral demounting tool is connect with cylinder cap by the connection bolt 7 of cylinder cap attachment device I；Adjust clamp nut 3
Position makes the ring of spring-compressed plate III be placed on spring a top surface, the preparation before fulfiling assignment；Use spanner up time
Needle rotatably compresses nut 3, is moved downward by clamp nut 3 along 2 threaded upper ends of hold-down bolt, and support device 4 is made to drive spring
Compression plate III is pressing against spring and is moving downward, and compressed spring exposes the top surface of ring 9, energy until the locker installation annular groove of engine valve stem
The valve collet in seat ring is packed into or is taken out with hand；It rotatably compresses nut 3 counterclockwise using spanner, screws out clamp nut 3, make
Spring-compressed plate III moves upwards under spring force effect, takes out bullet when locker clamps engine valve stem, disassembly when realizing assembly
Spring.
Compared with conventional tool, the utility model at least has the following advantages:
(1) modular composite structure is used, is combined using different components, is turned conducive between different model cylinder cap
It changes；
(2) compression movement that spring is carried out using screw mechanism, larger power needed for adapting to large-scale cylinder cap spring-compressed；
(3) compression movement of spring is carried out using screw mechanism, the self-locking performance of screw mechanism can be in spring-compressed to just
Voluntarily stop when true position, can prevent that spring force from leading to that locker flies out and wait injury accidents, safety is higher；
(4) guide frame is used, it is ensured that spring vertical compression can be prevented to positions such as spring, engine valve stems
Damage.
Detailed description of the invention
Fig. 1 is the press fitting of engine cylinder head system valve spring portable combined and the main view of extracting tool of the utility model；
Fig. 2 is the press fitting of engine cylinder head system valve spring portable combined and the side view of extracting tool of the utility model；
Fig. 3 is the structural schematic diagram of Fig. 1 middle cylinder closure attachment means I；
Fig. 4 is the structural schematic diagram of pressing device II in Fig. 1；
Fig. 5 is the structural schematic diagram of spring compression plate III in Fig. 1.
Specific embodiment
In order to make the technical problems, technical solutions and advantages to be solved by the utility model clearer, below in conjunction with attached drawing
And specific embodiment is described in detail.
The utility model provides a kind of press fitting of engine cylinder head system valve spring portable combined and extracting tool, as Fig. 1~
Shown in Fig. 5, including cylinder cap attachment device I, pressing device II and spring-compressed plate III, in which:
Cylinder cap attachment device I is connect by connecting bolt 7 with cylinder cap, and cylinder cap attachment device I includes cylinder cap connecting plate 6, cylinder
Lid connecting plate 6 is provided centrally with threaded hole M1；
Pressing device II includes hold-down bolt 2, and the middle and lower part of hold-down bolt 2 is provided with sleeve 8, in hold-down bolt 2 on
Portion is arranged with support device 4, and the lower part of support device 4 is set in outside sleeve 8, and the top of support device 4 is set in hold-down bolt 2
It is provided with outside and between hold-down bolt 2 gap, the top of support device 4 is provided with clamp nut 3, by screwing clamp nut
3 can provide required power for spring-compressed, and the lower part of hold-down bolt 2 is provided with attaching nut 5, the lower end of hold-down bolt 2
It screws in the threaded hole of cylinder cap connecting plate 6；
Spring-compressed plate III includes the ring 9 of the vertical plate 1 connecting with pressing device II and the lower part for being welded on vertical plate 1, bullet
Spring compression plate III can be generated under the action of pressing device II and be vertically moved with holddown spring.
The engine cylinder head system valve spring portable combined of the utility model is pressed and extracting tool, in use, passing through cylinder
Integral demounting tool is connect by the connection bolt 7 of closure attachment means I with cylinder cap；The position for adjusting clamp nut 3, makes spring-compressed
The ring of plate III is placed on spring a top surface, the preparation before fulfiling assignment；Clamp nut is rotated clockwise using spanner
3, it is moved downward by clamp nut 3 along 2 threaded upper ends of hold-down bolt, makes support device 4 that spring-compressed plate III be driven to press against bullet
Spring moves downward, and compressed spring exposes the top surface of ring 9 until the locker installation annular groove of engine valve stem, can will be in seat ring with hand
Valve collet is packed into or takes out；It rotatably compresses nut 3 counterclockwise using spanner, screws out clamp nut 3, spring-compressed plate III is made to exist
It is moved upwards under spring force effect, takes out spring when locker clamps engine valve stem, disassembly when realizing assembly.
Compared with conventional tool, the utility model at least has the following advantages:
(1) modular composite structure is used, is combined using different components, is turned conducive between different model cylinder cap
It changes；
(2) compression movement that spring is carried out using screw mechanism, larger power needed for adapting to large-scale cylinder cap spring-compressed；
(3) compression movement of spring is carried out using screw mechanism, the self-locking performance of screw mechanism can be in spring-compressed to just
Voluntarily stop when true position, can prevent that spring force from leading to that locker flies out and wait injury accidents, safety is higher；
(4) guide frame is used, it is ensured that spring vertical compression can be prevented to positions such as spring, engine valve stems
Damage.
Further, axial thrust bearing is provided between the clamp nut 3 and support device 4 of pressing device II.Work as bullet
When the compression force request of spring is excessive, being provided with axial thrust bearing can be reduced between 4 top of clamp nut 3 and support device
Frictional force.
In the utility model, the side of support device 4 is provided with threaded skirt, and the side of vertical plate 1 is provided with several
Connecting hole is fastened by bolts between support device 4 and vertical plate 1.
Preparation before fulfiling assignment for convenience, the ring 9 of spring-compressed plate III and the spring top of required compression
Alignment.To adjust the position of clamp nut 3, the ring of spring-compressed plate III is set to be placed on spring a top surface, before fulfiling assignment
Preparation.
Preferably, annular groove is provided on the contact surface with the spring seat of honour of ring 9.For anti-skidding design.
Further, the screw-in depth of attaching nut 5 make the end of hold-down bolt 2 stretch out cylinder cap connecting plate 6 2~
3mm is advisable.The thickness of the visual cylinder cap connecting plate 6 of the screw-in depth of attaching nut 5 determines, guarantees the bottom end of hold-down bolt 2 as far as possible
It screws in but does not stretch out cylinder cap connecting plate 6, when stretching out cylinder cap connecting plate, making bolt protruded length is more than 6 thickness of cylinder cap connecting plate
2~3mm be advisable.
The material of main part of the utility model uses metal material.Wherein:
Cylinder cap attachment device I: for tool and cylinder cap to be linked together, according to different cylinder caps in housing face possessed by
The difference of screw thread hole site and model, cylinder cap connecting plate and shape possessed by cylinder cap connect hole site and structure size is also each
It is not identical, different cylinder cap connecting plates is designed according to the engine cylinder cover of different model.Cylinder cap connecting plate 6, design considerations: cylinder cap
The bolt hole position that top surface has in fact, and spring position is avoided, it is cut using the steel plate of σ=20 Q235B, is had thereon
There is common one to be located at the threaded hole at entire cylinder cap connecting plate center, and the hold-down bolt 2 of pressing device II and connect spiral shell
Mother 5 cooperates, and can fit together.It is illustrated in figure 3 connecting plate used in the cylinder cap bomb disposal spring of cylinder diameter 260, in evacuation bullet
Increase its size while spring as far as possible to obtain enough intensity.
Pressing device II: pressing device is the core of entire press mounting tool, has fixed structure and composition, by screwing
Clamp nut 3 provides required power for spring-compressed.Pressing device II in the utility model is the general part of fixed design,
The cylinder cap attachment device I and spring-compressed plate III of different model are dedicated selection part, and coupled by bolt, thus shape
At installation used in different model cylinder cap, dismantle spring tool.4 lower end of hold-down bolt screws in cylinder cap connecting plate 6, passes through connection
Nut 5 is connect with cylinder cap attachment device I；In 4 side of support device, design has threaded skirt, can be with spring-compressed plate III
It is attached by bolt.
Spring-compressed plate III: spring-compressed plate is welding sub-assembly, is welded to form by vertical plate and ring, according to different model
The distinctive spring seat of honour of cylinder cap, air valve structure and valve separately design different spring-compresseds from factors such as cylinder cap center spacing
Plate, convenient for carrying out operation to different model cylinder cap.As shown in figure 5, the design of vertical plate, according between valve center and cylinder cap center
Spacing determine size L1 and L2, be adapted it with the cylinder cap of corresponding model, formed using the steel plate air cutting of σ=10 Q235B,
The unthreaded hole center of vertical plate side is away from unified, with 4 side of support device skirt unification；The design of ring, according to outside the spring seat of honour
Circle determines size Φ 1, determines that size Φ 2, mesoporous use taper design, benefit according to the size at the taper maximum diameter of hole of the spring seat of honour
It is removed and placed into valve collet, is having annular groove with the design of spring seat of honour contact surface, be anti-skidding design.Spring-compressed plate III passes through
Several connecting holes (preferably 3~4) and pressing device II of side are connected as entirety, make it under the action of pressing device II
Generation vertically moves, holddown spring, and locker is packed into the annular groove of engine valve stem by the opening on vertical plate, was unclamped in spring
Automatically lock engine valve stem in journey.
The assembling mode of all parts of the utility model is as follows:
The assembling of pressing device II:
Hold-down bolt 2 is inserted in out of 4 upper end of support device hole, top screws in clamp nut 3, and bottom screws in connection spiral shell
Mother 5 completes the assembling of pressing device II.As the compression force request of spring it is excessive in the case where, can clamp nut 3 and support
Device is packed into axial thrust bearing between 4 top, to reduce the frictional force between 4 top of clamp nut 3 and support device；Connection
The thickness of the visual cylinder cap connecting plate 6 of the screw-in depth of nut 5 determines that making bolt protruded length is more than the 2 of 6 thickness of cylinder cap connecting plate
~3mm is advisable；
Connection between cylinder cap attachment device I and pressing device II:
The bottom end of hold-down bolt 2 is screwed in the threaded hole of cylinder cap connecting plate 6, guarantees that the bottom end of hold-down bolt 2 is revolved as far as possible
Enter but does not stretch out cylinder cap connecting plate 6；Attaching nut 5 is screwed, it is firm to make to connect between the two, hold-down bolt 2 and cylinder cap connecting plate 6
It does not generate and is mutually shifted；
Connection between pressing device II and spring-compressed plate III:
By the side skirt of several connecting holes and II support device 4 of pressing device on the vertical plate 8 of spring-compressed plate III
Screw hole fastens it with bolt.Pay attention to spring-compressed plate III towards in 6 side of cylinder cap connecting plate.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.A variety of modifications of embodiment will be readily apparent to those skilled in the art, it is as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present utility model, not give
The part presented with partial enlargement is described in detail, is the prior art, herein without repeating.Therefore, the utility model will not
It is intended to be limited to the embodiments shown herein, and is to fit to consistent with principles disclosed herein and feature widest
Range.
Claims (6)
1. a kind of engine cylinder head system valve spring portable combined press fitting and extracting tool, which is characterized in that connected including cylinder cap
Device, pressing device and spring-compressed plate, in which:
The cylinder cap attachment device is connect by connecting bolt with cylinder cap, and the cylinder cap attachment device includes cylinder cap connecting plate, institute
That states cylinder cap connecting plate is provided centrally with threaded hole；
The pressing device includes hold-down bolt, and the middle and lower part of the hold-down bolt is provided with sleeve, in the hold-down bolt
Top is arranged with support device, and the lower part of the support device is set in outside the sleeve, and the top of the support device is arranged
It is being provided with gap outside the hold-down bolt and between the hold-down bolt, compression spiral shell is provided at the top of the support device
Mother can provide required power by screwing the clamp nut for spring-compressed, and the lower part of the hold-down bolt is provided with
Attaching nut, the lower end of the hold-down bolt screw in the threaded hole of the cylinder cap connecting plate；
The spring-compressed plate includes the ring of the vertical plate connecting with the pressing device and the lower part for being welded on the vertical plate, institute
It states spring-compressed plate and can be generated under the action of the pressing device and vertically moved with holddown spring.
2. engine cylinder head system valve spring portable combined press fitting according to claim 1 and extracting tool, feature exist
In being provided with axial thrust bearing between the clamp nut and support device of the pressing device.
3. engine cylinder head system valve spring portable combined press fitting according to claim 2 and extracting tool, feature exist
In the side of the support device is provided with threaded skirt, and the side of the vertical plate is provided with several connecting holes, the branch
It is fastened by bolts between support arrangement and vertical plate.
4. engine cylinder head system valve spring portable combined press fitting according to claim 3 and extracting tool, feature exist
In the ring of the spring-compressed plate and the spring hanging of required compression.
5. engine cylinder head system valve spring portable combined press fitting according to claim 4 and extracting tool, feature exist
In being provided with annular groove on the contact surface with the spring seat of honour of the ring.
6. engine cylinder head system valve spring portable combined press fitting according to claim 5 and extracting tool, feature exist
In the screw-in depth of the attaching nut makes the end of the hold-down bolt stretch out 2~3mm of the cylinder cap connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820714316.0U CN208215258U (en) | 2018-05-15 | 2018-05-15 | A kind of press fitting of engine cylinder head system valve spring portable combined and extracting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820714316.0U CN208215258U (en) | 2018-05-15 | 2018-05-15 | A kind of press fitting of engine cylinder head system valve spring portable combined and extracting tool |
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| Publication Number | Publication Date |
|---|---|
| CN208215258U true CN208215258U (en) | 2018-12-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820714316.0U Active CN208215258U (en) | 2018-05-15 | 2018-05-15 | A kind of press fitting of engine cylinder head system valve spring portable combined and extracting tool |
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| CN (1) | CN208215258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110712171A (en) * | 2019-11-15 | 2020-01-21 | 中船动力有限公司 | Diesel engine air valve lock clamp dismounting device |
-
2018
- 2018-05-15 CN CN201820714316.0U patent/CN208215258U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110712171A (en) * | 2019-11-15 | 2020-01-21 | 中船动力有限公司 | Diesel engine air valve lock clamp dismounting device |
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