CN202344486U - Tool special for replacing air valve guide pipe and transverse bridge seat of diesel engine - Google Patents
Tool special for replacing air valve guide pipe and transverse bridge seat of diesel engine Download PDFInfo
- Publication number
- CN202344486U CN202344486U CN2011205020978U CN201120502097U CN202344486U CN 202344486 U CN202344486 U CN 202344486U CN 2011205020978 U CN2011205020978 U CN 2011205020978U CN 201120502097 U CN201120502097 U CN 201120502097U CN 202344486 U CN202344486 U CN 202344486U
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- diesel engine
- screw
- screw rod
- bridges
- valve guide
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Abstract
The utility model provides a tool special for replacing an air valve guide pipe and a transverse bridge seat of a diesel engine. The tool comprises a screw and a disassembly supporting seat and an assembly supporting pad which are sleeved on the screw, wherein a screw thread is processed on the screw, and a screw cap is arranged at one end of the screw thread in a matched mode; and the other end of the screw rod, which is not provided with a screw thread, is a cylindrical stopping head with an end platform. According to the tool, the problem about quick disassembly and replacement of the air valve guide pipe on the spot is solved. When the tool is applied on the spot, the maintenance efficiency is improved, and loss caused by replacement of an air cylinder cover is reduced; and when the air cylinder cover of the diesel engine is disassembled, detected and maintained, the air valve guide pipe and the transverse bridge seat which are abraded severely can be replaced timely, so that the reliability of the diesel engine is improved, and a good using effect is achieved. The tool has the advantages of simple structure, convenience in use and high maintenance efficiency.
Description
Technical field
The utility model relates to diesel engine spiracle conduit cross-bridges seat replacing technology, and specifically a kind of diesel engine spiracle conduit cross-bridges seat is changed specific purpose tool.
Background technology
The existing diesel serial diesel engine is after long-term the use, and 190 serial diesel engines particularly are because of reasons such as various make valve guide bushing and the heavy wear of cross-bridges seat; Valve stem and conduit, valve cross-bridges and the increase of shift fork fit clearance exceed standard; Faults such as valve guide bushing fracture, cross-bridges shift fork distortion fracture take place often, the parts such as changing valve guide bushing, cross-bridges shift fork that need repairing, but owing to lack special-purpose maintenance tool at the scene; The maintain and replace valve guide bushing generally adopted the iron rod hammering to take out and the mode of assembling at the scene in the past; Inefficiency very easily causes the damage of cylinder head valve guide bushing seat hole and conduit, can not guarantee installation quality.
In view of this, to the problems referred to above, propose a kind of diesel engine spiracle conduit cross-bridges seat reasonable in design and that effectively improve above-mentioned disappearance according to spiral pulling force principle and change specific purpose tool.
Summary of the invention
The purpose of the utility model is to provide diesel engine spiracle conduit cross-bridges seat to change specific purpose tool, and it has simple in structure, easy to use and reliable characteristics, and problem is changed in the field maintenance that solves 190 diesel engine spiracle conduits and cross-bridges shift fork with minimum input; Make things convenient for the field maintenance personnel, alleviate operator's labour intensity; Improve the service life of cylinder head, reduce because of valve guide bushing damages and change the damnous advantage of cylinder head.
In order to reach above-mentioned purpose; The utility model provides diesel engine spiracle conduit cross-bridges seat to change specific purpose tool; Comprise screw rod and all be enclosed within dismounting supporting base, the installation supporting pad on the screw rod; Being processed with screw thread on the said screw rod and in the cooperation of screw thread one end nut being installed, is to have the cylinder retaining head of holding platform at the non-threaded other end of screw rod.
The said internal diameter that is enclosed within the dismounting supporting base on the screw rod and supporting pad is installed is greater than the external diameter of screw rod and less than the external diameter of the cylinder retaining head of screw end head.
Screw thread on the said screw rod is a trapezoidal thread, offers a through hole perpendicular to screw axis on the cylinder retaining head of said screw end head; Said nut is thickening six square nuts identical with the screw rod button-type, with above-mentioned screw rod be clearance fit relationship.
Said dismounting supporting base is a cylinder type, and top is the pressure-bearing plane of middle processing circular hole.
Said installation supporting pad is the circular steel plate of a middle processing circular hole.
Compared to prior art, the utility model has solved valve guide bushing quick dismounting and change problem at the scene.Through using at the scene; Improved maintenance efficiency, reduced cylinder head and changed the loss that causes, opened and inspect the valve guide bushing and the cross-bridges seat that can exceed standard to wearing and tearing timely when safeguarding at cylinder cover for diesel engine and change; Improve the reliability of diesel engine, obtained extraordinary result of use.The utlity model has advantage simple in structure, easy to use, that maintenance efficiency is high.Be mainly used in 190 serial diesel engine valve guide bushings, the cross-bridges seat removes and installs.
Description of drawings
Fig. 1 is the structural representation that the utility model diesel engine spiracle conduit cross-bridges seat is changed specific purpose tool;
Fig. 2 changes the structure chart that specific purpose tool is used for the valve guide bushing disengaging section for the utility model diesel engine spiracle conduit cross-bridges seat;
Fig. 3 changes the structure chart that specific purpose tool is used for the valve guide bushing mounting portion for the utility model diesel engine spiracle conduit cross-bridges seat.
Among the figure: screw rod 1, dismounting supporting base 2, nut 3, installation supporting pad 4.
The specific embodiment
Detailed description of relevant the utility model and technology contents, conjunction with figs. are explained as follows, yet accompanying drawing only provides the usefulness of reference with explanation, are not to be used for the utility model is limited.
According to shown in Figure 1, diesel engine spiracle conduit cross-bridges seat is changed specific purpose tool, is made up of parts such as screw rod 1, dismounting supporting base 2, nut 3, installation supporting pads 4.This screw rod 1 top is the stock of processing trapezoidal thread, and the bottom is through hole of cylinder middle part processing; This nut 3 is thickening six square nuts identical with the screw rod button-type, with above-mentioned screw rod be clearance fit relationship; This dismounting supporting base 2 be a cylinder type, makes up with above-mentioned screw rod, nut when use for the pressure-bearing plane of middle processing circular hole on top and can accomplish valve guide bushing and valve cross-bridges seat is dismantled; It is the circular steel plate of a middle processing circular hole that supporting pad 4 is installed, and makes up the installation that can accomplish valve guide bushing with above-mentioned screw rod, nut.
As shown in Figure 2; Three parts such as the screw rod 1 during the dismounting valve guide bushing among use Fig. 1, dismounting supporting base 2, nut 3; At first screw rod 1 is penetrated in the valve guide hole from cylinder head valve major part nose end; Be inserted in dismounting supporting base 2 from cylinder head valve rod end then, screw on nut 2 usefulness spanners and tighten nut and can valve guide bushing be pulled out.
As shown in Figure 3; When being installed, valve guide bushing at first screw rod is penetrated in the valve guide hole by valve microcephaly section on the contrary during with dismounting; Supporting pad will be installed then be inserted in screw rod, and screw on nut and tighten continuously and can valve guide bushing be packed in the cylinder head valve guide bushing seat hole with spanner from valve major part nose end.
The above is merely the preferred embodiment of the utility model, and non-in order to limit the claim of the utility model, the equivalence of the patent spirit of other utilization the utility model changes, and all should all belong to the claim of the utility model.
Claims (5)
1. diesel engine spiracle conduit cross-bridges seat is changed specific purpose tool; It is characterized in that; Comprise screw rod and all be enclosed within dismounting supporting base, the installation supporting pad on the screw rod; Being processed with screw thread on the said screw rod and in the cooperation of screw thread one end nut being installed, is to have the cylinder retaining head of holding platform at the non-threaded other end of screw rod.
2. diesel engine spiracle conduit cross-bridges seat according to claim 1 is changed specific purpose tool, it is characterized in that, the said internal diameter that is enclosed within the dismounting supporting base on the screw rod and supporting pad is installed is greater than the external diameter of screw rod and less than the external diameter of the cylinder retaining head of screw end head.
3. diesel engine spiracle conduit cross-bridges seat according to claim 1 is changed specific purpose tool, it is characterized in that the screw thread on the said screw rod is a trapezoidal thread, offers a through hole perpendicular to screw axis on the cylinder retaining head of said screw end head; Said nut is thickening six square nuts identical with the screw rod button-type, with above-mentioned screw rod be clearance fit relationship.
4. diesel engine spiracle conduit cross-bridges seat according to claim 1 is changed specific purpose tool, it is characterized in that said dismounting supporting base is a cylinder type, and top is the pressure-bearing plane of middle processing circular hole.
5. diesel engine spiracle conduit cross-bridges seat according to claim 1 is changed specific purpose tool, it is characterized in that, said installation supporting pad is the circular steel plate of a middle processing circular hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205020978U CN202344486U (en) | 2011-12-06 | 2011-12-06 | Tool special for replacing air valve guide pipe and transverse bridge seat of diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205020978U CN202344486U (en) | 2011-12-06 | 2011-12-06 | Tool special for replacing air valve guide pipe and transverse bridge seat of diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202344486U true CN202344486U (en) | 2012-07-25 |
Family
ID=46533515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205020978U Expired - Fee Related CN202344486U (en) | 2011-12-06 | 2011-12-06 | Tool special for replacing air valve guide pipe and transverse bridge seat of diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202344486U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286736A (en) * | 2013-05-03 | 2013-09-11 | 东风朝阳朝柴动力有限公司 | Simple mounting instrument for engine valve guide |
| CN104476475A (en) * | 2014-12-17 | 2015-04-01 | 重庆欧帆门业有限公司 | Rapid doornail extraction tool |
-
2011
- 2011-12-06 CN CN2011205020978U patent/CN202344486U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103286736A (en) * | 2013-05-03 | 2013-09-11 | 东风朝阳朝柴动力有限公司 | Simple mounting instrument for engine valve guide |
| CN104476475A (en) * | 2014-12-17 | 2015-04-01 | 重庆欧帆门业有限公司 | Rapid doornail extraction tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20131206 |