CN110712171A - Diesel engine air valve lock clamp dismounting device - Google Patents
Diesel engine air valve lock clamp dismounting device Download PDFInfo
- Publication number
- CN110712171A CN110712171A CN201911118281.XA CN201911118281A CN110712171A CN 110712171 A CN110712171 A CN 110712171A CN 201911118281 A CN201911118281 A CN 201911118281A CN 110712171 A CN110712171 A CN 110712171A
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- China
- Prior art keywords
- pressing
- air valve
- screw
- diesel engine
- dismounting device
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/023—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same using screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mechanically-Actuated Valves (AREA)
Abstract
The invention discloses a diesel engine air valve lock clamp dismounting device, which comprises a driving mechanism and a pressing mechanism, wherein the driving mechanism is arranged on the driving mechanism; the driving mechanism comprises two screw rods, two pairs of fixing nuts, two gaskets, two springs, an installation beam, a compression beam and a jack, wherein the two springs are sleeved on the two screw rods; the pressing mechanism comprises a pressing screw, an upper gasket, a lower gasket, a pressing nut and a pressing combination, the pressing combination comprises a sleeve, a pressing arm and a pressing block, the sleeve is sleeved on the pressing screw, the upper end of the pressing arm is fixedly connected with one side of the sleeve, and the pressing block is fixed at the lower end of the pressing arm. The invention has the advantages of time and labor saving in operation, improved working efficiency and reduced cost, and when the disassembly of the first air valve lock clamp is completed, the second air valve lock clamp can be directly disassembled just by rotating the pressing block to the second air valve rotating cap, so the use is very convenient.
Description
Technical Field
The invention relates to a dismounting device for an air valve on a cylinder cover of a diesel engine, in particular to a dismounting device for a locking clamp of the air valve on the top of the cylinder cover of the diesel engine, which is time-saving and labor-saving in operation and belongs to the technical field of maintenance tools for fitters.
Background
The four-stroke medium-speed diesel engine is characterized in that four air valves for air inlet and exhaust are arranged on an air cylinder cover of the four-stroke medium-speed diesel engine, an air valve rod is arranged on each air valve, two air valve springs are sleeved on each air valve rod, a rotating cap is installed at the top of each air valve spring, a conical air valve locking clamp is inserted into a rotating cap hole and clamped in a clamping groove of each air valve rod, and the number of the air valve locking clamps on one diesel engine is dozens according to the number of different cylinders of the diesel engine. The existing gas valve lock clamp dismounting tool is heavy, the operation process is complex, time and labor are wasted, at least two persons are needed to operate simultaneously, the working efficiency is low, the skill requirement on operators is high, the actual use effect is not ideal, the problems that the end part of a gas valve rod is napped, a clamping groove is damaged and the like can often occur, the manufacturing cost of products is increased, and the manufacturing period of the products is prolonged.
Disclosure of Invention
The invention aims to provide a dismounting device for a diesel engine air valve lock clamp, which has the advantages of simple structure, time-saving and labor-saving operation and high working efficiency.
The invention is realized by the following technical scheme:
a diesel engine air valve lock clamp dismounting device comprises a driving mechanism and a pressing mechanism; the driving mechanism comprises two screw rods, two pairs of fixing nuts, two gaskets, two springs, an installation crossbeam, a compression crossbeam and a jack, wherein the two pairs of fixing nuts and the two gaskets are respectively installed at the lower ends of the two screw rods; the pressing mechanism is arranged on the lower side of the middle of the installation beam and comprises a pressing screw, an upper gasket, a lower gasket, a pressing nut and a pressing combination, the upper end of the pressing screw is screwed on the bottom of the installation beam, the upper gasket is sleeved on the upper end of the pressing screw, the lower gasket and the pressing nut are installed at the lower end of the pressing screw, the pressing combination comprises a sleeve, a pressing arm and a pressing block, the sleeve is rotatably sleeved on the pressing screw, the upper end of the pressing arm is fixedly connected with one side of the sleeve, and the pressing block is fixed at the lower end of the pressing arm.
The object of the invention is further achieved by the following technical measures.
According to the dismounting device for the diesel engine air valve lock clamp, the bottom of the pressing cross beam is of a structure shaped like a Chinese character 'ji'.
According to the dismounting device for the diesel engine air valve lock clamp, the lower side of the pressing arm is provided with the inverted U-shaped groove.
According to the dismounting device for the diesel engine air valve lock clamp, the middle part of the pressing block is provided with the inverted taper hole.
According to the invention, the jack is used for replacing manual force application, the air valve locking clamp can be easily taken out by using the counterforce of the force, the air valve rod cannot be scratched, the clamping groove of the air valve rod cannot be damaged, and one operator can complete all operations. After the first air valve locking clamp is disassembled, the pressing block is rotated to the second air valve rotating cap by only rotating the pressing arm, so that the second air valve locking clamp can be directly disassembled, the air valve locking clamp does not need to be re-assembled, and the air valve locking clamp is very convenient to use. The pressure block is provided with a pressure block hole, the pressure block is provided with a pressure arm, the pressure arm is provided with a pressure head, the pressure head is provided with a pressure head support, the pressure head is.
Advantages and features of the present invention will be illustrated and explained by the following non-restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the structure of the invention installed on the top of the cylinder head of a diesel engine;
FIG. 3 is an enlarged view of section I of FIG. 2;
FIG. 4 is an enlarged schematic view of the valve clamp disengaged from the swivel cap after application of force;
fig. 5 is an enlarged structural schematic diagram of the return of the rotating cap after the jack releases pressure.
Detailed Description
The invention is further illustrated by the following figures and examples.
As shown in fig. 1, the present invention includes a driving mechanism 1 and a pressing mechanism 2. The driving mechanism 1 comprises two screw rods 11, two pairs of fixing nuts 12, two gaskets 13, two springs 14, an installation beam 15, a compression beam 16 and a jack 17, wherein the two pairs of fixing nuts 12 and the two gaskets 13 are respectively installed at the lower ends of the two screw rods 11, the two springs 12 are respectively sleeved on the two screw rods 11, the lower ends of the springs 12 are respectively supported on the corresponding gaskets 13, the two ends of the installation beam 15 are respectively movably sleeved in the middle parts of the two screw rods 11 and can move up and down along the middle parts of the screw rods 11, the two ends of the bottom of the installation beam 15 are respectively supported on the upper ends of the two springs 12, the two ends of the compression beam 16 are respectively sleeved on the upper ends of the two screw rods 11 and are respectively locked by the upper nuts 18 and the lower nuts 18, the bottom of the compression.
The lower pressing mechanism 2 is arranged on the lower side of the middle of the mounting cross beam 15, the lower pressing mechanism 2 comprises a lower pressing screw rod 21, an upper gasket 22, a lower gasket 23, a lower pressing nut 24 and a pressing combination 25, the upper end of the lower pressing screw rod 21 is screwed on the bottom of the mounting cross beam 15, the upper gasket 22 is sleeved on the upper end of the lower pressing screw rod 21, and the lower gasket 23 and the lower pressing nut 24 are mounted at the lower end of the lower pressing screw rod 21. The pressing combination 25 comprises a sleeve 251, a pressing arm 252 and a pressing block 253, the sleeve 251 is rotatably sleeved on the lower pressing screw 21 and can rotate around the lower pressing screw 21360 degrees, the upper end of the pressing arm 252 is fixedly connected with one side of the sleeve 251 in a welding mode, the pressing block 253 is fixedly connected to the lower end of the pressing arm 252 in a welding mode, an inverted U-shaped groove 254 is formed in the lower side of the pressing arm 252, and an inverted cone hole 255 is formed in the middle of the pressing block 253.
The operation process of the invention is as follows:
as shown in fig. 2 and 3, the lower ends of the two screws 11 with the fixed nuts 12 and the washers 13 are screwed into two positioning screw holes on the top surface of the cylinder head of the diesel engine, and then the other parts of the driving mechanism 1 and the parts of the pressing mechanism 2 are sequentially installed. The pressing arm 252 is rotated to enable the pressing block 253 at the lower end of the pressing arm to be located on the upper side of the air valve rotating cap 3, the rotating cap 3 is adjusted and centered, then the pressing rod 19 on the jack 17 is pressed downwards, at the moment, the top column of the jack 17 rises upwards, the pressing beam 16 is pressed upwards with force, as the pressing beam 16 is a fixed piece, the jack 17 presses the mounting beam 15 downwards, the mounting beam 15 moves downwards slowly, the two springs 12 contract, meanwhile, the mounting beam 15 drives the pressing block 253 to press the rotating cap 3 downwards through the pressing arm 252, the air valve spring 4 contracts until the air valve locking clamp 5 is completely separated from the inner hole of the rotating cap 3, as shown in figure 4, and finally the air valve locking clamp 5 is pulled out in a straight line. The jack 17 is released, the top column of the jack 17 is retracted, the mounting cross beam 15 returns under the action of the restoring force of the spring 12, the mounting cross beam 15 drives the pressing block 253 to move upwards to return through the pressing arm 252, the rotating cap 3 returns along with the pressing arm under the action of the restoring force of the air valve spring 4, and as shown in fig. 5, the rotating cap 3, the air valve spring 4 and the air valve rod 6 can be sequentially detached for maintenance. The remaining valve clamps 5 on the cylinder head can be removed in the same way.
According to the invention, only a small force is applied on the jack 17, and a large pressure can be applied on the rotating cap 3 through the pressing block 253, so that the air valve locking clamp 5 can be taken out smoothly.
In addition to the above embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the claims of the present invention.
Claims (4)
1. The utility model provides a diesel engine air valve collet dismounting device which characterized in that: comprises a driving mechanism and a pressing mechanism; the driving mechanism comprises two screw rods, two pairs of fixing nuts, two gaskets, two springs, an installation crossbeam, a compression crossbeam and a jack, wherein the two pairs of fixing nuts and the two gaskets are respectively installed at the lower ends of the two screw rods; the pressing mechanism is arranged on the lower side of the middle of the installation beam and comprises a pressing screw, an upper gasket, a lower gasket, a pressing nut and a pressing combination, the upper end of the pressing screw is screwed on the bottom of the installation beam, the upper gasket is sleeved on the upper end of the pressing screw, the lower gasket and the pressing nut are installed at the lower end of the pressing screw, the pressing combination comprises a sleeve, a pressing arm and a pressing block, the sleeve is rotatably sleeved on the pressing screw, the upper end of the pressing arm is fixedly connected with one side of the sleeve, and the pressing block is fixed at the lower end of the pressing arm.
2. The diesel engine air valve lock clamp dismounting device as set forth in claim 1, wherein: the bottom of the compressing beam is of a structure shaped like a Chinese character 'ji'.
3. The diesel engine air valve lock clamp dismounting device as set forth in claim 1, wherein: an inverted U-shaped groove is formed in the lower side of the pressing arm.
4. The diesel engine air valve lock clamp dismounting device as set forth in claim 1, wherein: the middle part of the pressing block is provided with an inverted taper hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911118281.XA CN110712171A (en) | 2019-11-15 | 2019-11-15 | Diesel engine air valve lock clamp dismounting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911118281.XA CN110712171A (en) | 2019-11-15 | 2019-11-15 | Diesel engine air valve lock clamp dismounting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110712171A true CN110712171A (en) | 2020-01-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911118281.XA Pending CN110712171A (en) | 2019-11-15 | 2019-11-15 | Diesel engine air valve lock clamp dismounting device |
Country Status (1)
| Country | Link |
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| CN (1) | CN110712171A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202212924U (en) * | 2011-07-21 | 2012-05-09 | 广西玉柴机器股份有限公司 | Assembling and disassembling tool for four-valve engine valve lock clamp |
| CN103029097A (en) * | 2011-09-30 | 2013-04-10 | 广东力宇新能源科技有限公司 | Disassembly-assembly tool of connecting rod bushing and disassembly-assembly craft thereof |
| CN103372589A (en) * | 2012-04-28 | 2013-10-30 | 无锡市阳通机械设备有限公司 | Air pipe hoop pressing device |
| CN104308528A (en) * | 2014-09-29 | 2015-01-28 | 中核（天津）机械有限公司 | Apparatus for assembling valve element assembly |
| US20150183103A1 (en) * | 2013-12-30 | 2015-07-02 | Pi-Liang Wu | Engine valve spring removing/installing kit |
| CN208215258U (en) * | 2018-05-15 | 2018-12-11 | 中国石油天然气集团有限公司 | A kind of press fitting of engine cylinder head system valve spring portable combined and extracting tool |
-
2019
- 2019-11-15 CN CN201911118281.XA patent/CN110712171A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202212924U (en) * | 2011-07-21 | 2012-05-09 | 广西玉柴机器股份有限公司 | Assembling and disassembling tool for four-valve engine valve lock clamp |
| CN103029097A (en) * | 2011-09-30 | 2013-04-10 | 广东力宇新能源科技有限公司 | Disassembly-assembly tool of connecting rod bushing and disassembly-assembly craft thereof |
| CN103372589A (en) * | 2012-04-28 | 2013-10-30 | 无锡市阳通机械设备有限公司 | Air pipe hoop pressing device |
| US20150183103A1 (en) * | 2013-12-30 | 2015-07-02 | Pi-Liang Wu | Engine valve spring removing/installing kit |
| CN104308528A (en) * | 2014-09-29 | 2015-01-28 | 中核（天津）机械有限公司 | Apparatus for assembling valve element assembly |
| CN208215258U (en) * | 2018-05-15 | 2018-12-11 | 中国石油天然气集团有限公司 | A kind of press fitting of engine cylinder head system valve spring portable combined and extracting tool |
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| PB01 | Publication | ||
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Application publication date: 20200121 |
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| RJ01 | Rejection of invention patent application after publication |