CN208867094U - Cylinder cover valve seat extracts tooling - Google Patents
Cylinder cover valve seat extracts tooling Download PDFInfo
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- CN208867094U CN208867094U CN201821393755.2U CN201821393755U CN208867094U CN 208867094 U CN208867094 U CN 208867094U CN 201821393755 U CN201821393755 U CN 201821393755U CN 208867094 U CN208867094 U CN 208867094U
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- valve seat
- shell
- screw rod
- nut
- hole
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Abstract
The utility model discloses a kind of cylinder cover valve seats to extract tooling, including struts screw rod, shell, the first nut, fixed frame and the second nut；The top for strutting screw rod is threaded portion, and tail portion is taper bulb；The shell is set in described strut outside screw rod, and the shell tail portion is tapered opening, the tapered opening can be strutted by the taper bulb for strutting screw rod tail so that the male cone (strobilus masculinus) of the tapered opening and the inner conical surface of valve seat to complement each other to form the conical surface self-locking；First nut is connect with the screw spiral that struts, and is locked on the top surface of the shell；The fixed frame offers central through hole, and the screw rod that struts is across the central through hole, by strutting the second nut locking that screw spiral is connect on the fixed frame with described.The cylinder cover valve seat of the utility model extracts tooling, and structure is simple, can it is safe and efficient, reliably dismantle cylinder cover valve seat.
Description
Technical field
The utility model relates to engine assembly technical fields, and in particular to a kind of cylinder cover valve seat extraction tooling.
Background technique
Gas engine engine inlet and outlet valve seat and cylinder head are interference fit, in overhaul or maintenance process valve seat and sealing
Valve seat need to be extracted when enclosing leak.Valve seat need to weld salient point in valve base cavity point before extracting, then with improved Three-claw pull-horse card
Firmly pedestal, then extracted valve seat out of mounting hole with hydraulic elongator.Using such mode extract valve seat it is time-consuming and laborious and
Energy consumption is high, and main performance is as follows: 1, needing that valve seat internal bore welding is first picked out salient point in order to which hydraulic elongator is taken root, need to employ spy
Kind equipment welding machine and welder's cooperation.2, seriously and at pedestal unbalance stress leads to valve seat to the deformation of welding rear valve base when extraction
It is difficult when extraction, multiple tooling crack conditions once occurred, there are security risks.3, welding heel row air valve seat (shape) deformation is tight
Weight is waste product after extraction, cannot reuse.As it can be seen that needing to extract valve seat, work with hydraulic elongator after first welding in the prior art
Sequence is cumbersome time-consuming and laborious, and increases power consumption.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the utility model is to provide a kind of cylinder cover valve seats to extract tooling, structure
Simply, easy to operate, cost and energy consumption are reduced, and can guarantee indeformable after valve seat is extracted.
In order to achieve the above objectives, the technical solution adopted in the utility model is as follows:
Cylinder cover valve seat extracts tooling, and key is: including strutting screw rod, shell, the first nut, fixed frame and the
Two nuts；The top for strutting screw rod is threaded portion, and tail portion is taper bulb；The shell struts screw rod described in being set in
Outside, and the shell tail portion is tapered opening, and the tapered opening can be by the taper bulb for strutting screw rod tail
Strut so that the male cone (strobilus masculinus) of the tapered opening and the inner conical surface of valve seat to complement each other to form the conical surface self-locking；First nut with
It is described to strut screw spiral connection, and be locked on the top surface of the shell；The fixed frame offers central through hole, the support
Screw rod is opened across the central through hole, by strutting the second nut locking that screw spiral is connect in the fixed frame with described
On.
Further, the lower part of the housing offers several inflation openings of uniform intervals setting along longitudinal direction.
Further, the top of the shell is hollow cylindrical body, and is formed on the periphery of the cylindrical body
Opposed plat part.
Further, the fixed frame includes cover board, and the cover board is connected to gas by the annular groove that bottom opens up
On cylinder cap, the fixed frame further includes sleeve, and what the sleeve was connected to that the cover board top opens up is adapted with the sleeve
Annular groove in, offer central through hole at the top of the sleeve, the screw rod that struts passes through institute across the central through hole
The second nut locking is stated on the top surface of the sleeve, the top of the shell and the first nut are contained in the sleeve.
Further, offer several waist typed through hole in the sleeve lateral wall, the shell with the waist typed through hole
Corresponding position offers circular through hole.
The remarkable result of the utility model is:
1, the cylinder cover valve seat of the utility model extracts tooling, is strutted shell using screw rod is strutted, so that shell tail portion
Male cone (strobilus masculinus) and valve seat inner conical surface formed the conical surface it is self-locking, when pulling out bolt, the biography of the power in self-locking structure can be passed through
Passing makes valve seat be drawn out disassembly, saves plenty of time and human cost and energy consumption, improves work efficiency, and can guarantee valve seat
It is indeformable after extraction；
2, the utility model has the advantages that structure simple, easy making process, low in cost.
Detailed description of the invention
Fig. 1 is that the cylinder cover valve seat of the utility model extracts tooling overall structure diagram；
Fig. 2 is that the cylinder cover valve seat of the utility model extracts the structural schematic diagram of shell in tooling；
Fig. 3 is that the cylinder cover valve seat of the utility model extracts tooling for extracting delivery valve seat (left side) and inlet valve seat (right side)
Usage state diagram.
Specific embodiment
Specific embodiment of the present utility model and working principle are described in further detail with reference to the accompanying drawing.
In conjunction with Fig. 1, Fig. 3, the cylinder cover valve seat of the utility model extracts tooling, including struts screw rod 1, shell 2, the first spiral shell
Mother 3, fixed frame 4 and the second nut 5.
The top for strutting screw rod 1 of the utility model is threaded portion 11, and tail portion is taper bulb 12；The shell
2 be set in it is described strut outside screw rod 1, and 2 tail portion of the shell is tapered opening 21, and the tapered opening 21 can be described
The taper bulb 12 for strutting 1 tail portion of screw rod struts so that the male cone (strobilus masculinus) 22 and the inner conical surface of valve seat of the tapered opening 21 are mutual
It is self-locking to cooperatively form the conical surface, referring to Fig. 3；First nut 3 is connect with 1 spiral of screw rod that struts, and is locked in the shell
On the top surface of body 2；The fixed frame 4 offers central through hole 6, the screw rod 1 that struts across the central through hole 6, by with
Second nut 5 for strutting the connection of 1 spiral of screw rod is locked on the fixed frame 4.
As shown in Fig. 2, 2 lower part of shell offers several inflation openings 23 of uniform intervals setting along longitudinal direction.Institute
It states being provided with for inflation openings 23 to be conducive to strut screw rod 1 and strut the shell 2, so that in the male cone (strobilus masculinus) and valve seat of 2 tail portion of shell
It is self-locking that the conical surface forms the conical surface, and can prevent from damaging the shell 2.
As shown in Fig. 2, the top of the shell 2 is hollow cylindrical body 24, and the shape on the periphery of the cylindrical body 24
At there is opposed plat part 25.During strutting screw rod 1 and strutting shell 2, it can use spanner and block on shell 2
Plat part 25 prevents shell 2 from rotating.
In the present embodiment, as shown in figure 3, the fixed frame 4 includes cover board 41, the ring that the cover board 41 is opened up by bottom
Connected in star is connected in cylinder head, and the fixed frame 4 further includes sleeve 42, and the sleeve 42 is connected to 41 top of cover board and opens
If with the sleeve 42 be adapted annular groove in, the top of the sleeve 42 offers central through hole 6, described to strut spiral shell
Bar 1 pass through the central through hole 6, be locked in by second nut 5 on the top surface of the sleeve 42, the shell 2 it is upper
Portion and the first nut 3 are contained in the sleeve 42.
In the present embodiment, offer several waist typed through hole 43 on 42 side wall of sleeve, the shell 2 with the waist typed through hole
43 corresponding positions offer circular through hole 26.After completing valve seat extraction, needs to extract tooling and disassembled from valve seat, unscrewed
During second nut 5, in the circular through hole 26 using thin iron rod insertion shell 2, rest part is blocked, prevents whole turn
It is dynamic, to facilitate the disassembly for extracting tooling.
According to the utility model cylinder cover valve seat extract tooling use process approximately as.
Screw rod 1 will first be strutted and be put into inlet valve seat 7,8 bottom of delivery valve seat, then shell 2 is set in and is strutted outside screw rod 1 simultaneously
Be put into inlet valve seat 7, then 8 bottom of delivery valve seat is pulled upwardly and struts screw rod 1 shell 2 is strutted so that strutting screw rod 1,
After strutting screw rod 1, shell 2, valve seat 7 or 8, fitting completely, the first nut 3 on shell 2 is tightened.Then, mounting and fixing support 4
And second nut 5, the cover board 41 of fixed frame 4 are connected in cylinder head, strut the central through hole 6 that screw rod 1 is pierced by cover board 41, second
Nut 5 is connect with 1 spiral of screw rod that struts, and is locked on fixed frame 4.The first nut 5 is rotated using spanner, by strutting
Screw rod 1 pulls out valve seat 7,8.
The utility model solves the problems, such as the disassembly of cylinder head intake and exhaust valve seat, tests prove that the utility model structure letter
It is single, it is easy to operate, it is low in cost, it can satisfy on-site maintenance needs.
Although above-described embodiment is made that detailed description to the utility model, it is only the utility model a part
Embodiment, rather than whole embodiments, people can also obtain other implementations according to the present embodiment under the premise of without creativeness
Example, these embodiments belong to scope of protection of the utility model.
Claims (5)
1. cylinder cover valve seat extracts tooling, it is characterised in that: including strutting screw rod, shell, the first nut, fixed frame and second
Nut；
The top for strutting screw rod is threaded portion, and tail portion is taper bulb；
The shell struts outside screw rod described in being set in, and the shell tail portion is tapered opening, and the tapered opening can
It is strutted by the taper bulb for strutting screw rod tail so that the male cone (strobilus masculinus) of the tapered opening and the inner conical surface of valve seat are mutual
It is self-locking to cooperatively form the conical surface；
First nut is connect with the screw spiral that struts, and is locked on the top surface of the shell；
The fixed frame offers central through hole, and the screw rod that struts is across the central through hole, by strutting screw rod with described
Second nut locking of spiral connection is on the fixed frame.
2. cylinder cover valve seat according to claim 1 extracts tooling, it is characterised in that: the lower part of the housing opens up along longitudinal direction
Several inflation openings for thering are uniform intervals to be arranged.
3. cylinder cover valve seat according to claim 1 extracts tooling, it is characterised in that: the top of the shell is hollow
Cylindrical body, and opposed plat part is formed on the periphery of the cylindrical body.
4. cylinder cover valve seat according to claim 1 extracts tooling, it is characterised in that: the fixed frame includes cover board, institute
It states cover board to be connected in cylinder head by the annular groove that bottom opens up, the fixed frame further includes sleeve, and the sleeve abuts
In the annular groove being adapted with the sleeve that the cover board top opens up, it is logical that center is offered at the top of the sleeve
Hole, the screw rod that struts is across the central through hole, through second nut locking on the top surface of the sleeve, the shell
The top of body and the first nut are contained in the sleeve.
5. cylinder cover valve seat according to claim 4 extracts tooling, it is characterised in that: if being offered in the sleeve lateral wall
Dry waist typed through hole, the shell are offering circular through hole with the waist typed through hole corresponding position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821393755.2U CN208867094U (en) | 2018-08-28 | 2018-08-28 | Cylinder cover valve seat extracts tooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821393755.2U CN208867094U (en) | 2018-08-28 | 2018-08-28 | Cylinder cover valve seat extracts tooling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208867094U true CN208867094U (en) | 2019-05-17 |
Family
ID=66465842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821393755.2U Active CN208867094U (en) | 2018-08-28 | 2018-08-28 | Cylinder cover valve seat extracts tooling |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208867094U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111702722A (en) * | 2020-06-28 | 2020-09-25 | 江苏核电有限公司 | Nuclear-grade plunger pump check valve seat dismounting device and dismounting method |
-
2018
- 2018-08-28 CN CN201821393755.2U patent/CN208867094U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111702722A (en) * | 2020-06-28 | 2020-09-25 | 江苏核电有限公司 | Nuclear-grade plunger pump check valve seat dismounting device and dismounting method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 400000 block B, Jiulong Park, Jiulongpo District, Chongqing Patentee after: Chongqing Pushi New Energy Technology Co.,Ltd. Address before: 400000 block B, Jiulong Park, Jiulongpo District, Chongqing Patentee before: CHONGQING PUSH MECHANISM Co.,Ltd. |