CN114454116A - Disassembling tool for piston connecting rod of engine - Google Patents
Disassembling tool for piston connecting rod of engine Download PDFInfo
- Publication number
- CN114454116A CN114454116A CN202210283971.6A CN202210283971A CN114454116A CN 114454116 A CN114454116 A CN 114454116A CN 202210283971 A CN202210283971 A CN 202210283971A CN 114454116 A CN114454116 A CN 114454116A
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- China
- Prior art keywords
- inner shell
- movable inner
- push rod
- piston push
- piston
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 6
- 239000007789 gas Substances 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 7
- 230000008569 process Effects 0.000 abstract description 6
- 230000009471 action Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Images
Classifications
-
- 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
Abstract
The invention is suitable for the field of disassembling tools, and provides an engine piston connecting rod disassembling tool which comprises a fixed outer shell, a movable inner shell, a first piston push rod and a second piston push rod, wherein the fixed outer shell is fixedly connected with the movable inner shell; one end of the fixed shell is of an n-shaped structure which is provided with two output heads and is transversely arranged, and a semicircular arc edge is arranged between the two output heads; the movable inner shell is movably arranged in the fixed outer shell, the movable inner shell can be switched between a left end state and a right end state, and when the movable inner shell is in the right end state, two output heads on the movable inner shell can extend out of the fixed outer shell; when the movable inner shell is in a left end state, the two output heads are retracted from the fixed outer shell; therefore, the piston connecting rod can be disassembled, the device has diversified functions, replaces the traditional multi-tool disassembly, simplifies the disassembly process and is convenient to disassemble.
Description
Technical Field
The invention relates to the field of disassembling tools, in particular to a disassembling tool for a piston connecting rod of an engine.
Background
Referring to fig. 1, a piston and a connecting rod group are key parts for engine operation, a plurality of pistons and connecting rod assemblies are generally connected with a crank-connecting rod mechanism in different engines, a single piston and connecting rod assembly weighs about 10-12 kg, the piston and the connecting rod group are very difficult to take out from a combustion chamber space of the engine during maintenance, an upper cover and an oil pan of an engine cylinder are completely opened, a connecting rod screw for fixing the connecting rod cover and the connecting rod below the engine is disassembled, a wood stick or a stretching hand is used for pushing the piston and the connecting rod assembly upwards from the lower part of the engine, and the piston and the connecting rod assembly are pushed out of the combustion chamber upwards.
When the piston connecting rod is disassembled, nuts for connecting the connecting cover 2 and the connecting rod 3 need to be disassembled, then, the connecting rod 3 is moved to a certain position by hammering a bolt with a small hammer, so that the connecting cover 2 is conveniently taken down from the crankshaft 1, the connecting cover 2 is taken down, and finally, the connecting rod 3 is jacked down from the crankshaft 1 by a push rod.
Above-mentioned dismantlement in-process has used multiple instrument, leads to whole dismantlement process comparatively loaded down with trivial details.
In view of the above, the prior art is obviously inconvenient and disadvantageous in practical use, and needs to be improved.
Disclosure of Invention
In view of the above-mentioned drawbacks, an object of the present invention is to provide a tool for detaching a piston rod of an engine, which can detach the piston rod, and the tool has various functions, replaces the conventional multi-tool detachment, simplifies the detachment process, and is convenient to detach.
In order to achieve the aim, the invention provides a tool for disassembling a piston connecting rod of an engine, which comprises a fixed outer shell, a movable inner shell, a first piston push rod and a second piston push rod, wherein the fixed outer shell is fixedly connected with the movable inner shell; one end of the fixed shell is of an n-shaped structure which is provided with two output heads and is transversely arranged, and a semicircular arc edge is arranged between the two output heads; the movable inner shell is movably arranged in the fixed outer shell, the position of the movable inner shell can be switched between a left end state and a right end state, and when the movable inner shell is in the right end state, two output heads positioned on the movable inner shell can extend out of the fixed outer shell; when the movable inner shell is in a left end state, the two output heads are retracted from the fixed outer shell; the elastic piece is arranged between the movable inner shell and the fixed outer shell; second piston push rods are respectively arranged at the positions of the two output heads of the movable inner shell, and a first piston push rod is arranged at the other end of the movable inner shell; when the first piston push rod is pushed into the movable inner shell, the second piston push rod can extend out of the movable inner shell; when the first piston push rod is pulled out of the movable inner shell, the second piston push rod retracts into the movable inner shell; and a detachable positioning assembly is arranged between the movable inner shell and the first piston push rod.
According to the tool for disassembling the engine piston connecting rod, the elastic piece is a spring.
According to the tool for disassembling the piston connecting rod of the engine, pistons are mounted at one ends, located inside the movable inner shell, of the second piston push rod and the first piston push rod, and gas with certain pressure is filled in the movable inner shell.
According to the tool for disassembling the engine piston connecting rod, the gas injected into the movable inner shell is nitrogen.
According to the tool for disassembling the engine piston connecting rod, the positioning assembly comprises two groups of lug plates which correspond to each other and are respectively arranged on the movable inner shell and the first piston push rod, a threaded hole is formed in the center of each lug plate, and a long rod bolt is screwed in the threaded hole.
According to the tool for disassembling the engine piston connecting rod, a rubber sleeve is arranged at one hammered end of the first piston push rod.
According to the engine piston connecting rod dismounting tool, the output end of the second piston push rod is provided with the protection pad.
The invention provides an engine piston connecting rod dismounting tool which comprises a fixed outer shell, a movable inner shell, a first piston push rod and a second piston push rod, wherein the fixed outer shell is fixedly connected with the movable inner shell; the one end of fixed shell is for having "n" type structure of horizontal placing of two output heads, is equipped with semicircular arc limit between two output heads, and this arc limit can laminate with the outer wall of bent axle, plays the effect of location. The movable inner shell is movably arranged in the fixed outer shell, and the movable inner shell can move left and right in the fixed outer shell, and when the movable inner shell is in a right end state, two output heads on the movable inner shell can extend out of the fixed outer shell; when the movable inner shell is in a left end state, the two output heads are retracted from the fixed outer shell; the elastic piece is arranged between the movable inner shell and the fixed outer shell; further, the elastic member is a spring. The movable inner shell can move from an initial left end state to a right end state (at the moment, the elastic piece is stretched) under the action of external force; when the movable inner shell loses the action of external force, the movable inner shell can be restored to the initial left end state under the action of the elastic force of the elastic piece. Second piston push rods are respectively arranged at the positions of the two output heads of the movable inner shell, and a first piston push rod is arranged at the other end of the movable inner shell; when the first piston push rod is pushed into the movable inner shell, the second piston push rod can extend out of the movable inner shell; when the first piston push rod is pulled out of the movable inner shell, the second piston push rod retracts into the movable inner shell. The piston connecting rod dismounting device can be used for dismounting the piston connecting rod, has diversified functions, replaces the traditional multi-tool dismounting, simplifies the dismounting process and is convenient to dismount.
Drawings
FIG. 1 is an installation view of a prior art connecting rod;
FIG. 2 is a schematic structural view of the present invention;
FIG. 3 is another angular schematic of FIG. 2;
FIG. 4 is an internal structural view of FIG. 2;
FIG. 5 is another operating state diagram of FIG. 4;
FIG. 6 is another operational state diagram of FIG. 5;
in the figure, 1-crankshaft, 2-connecting cover, 3-connecting rod, 4-fixed outer shell, 41-output head, 42-arc edge, 5-movable inner shell, 6-first piston push rod, 7-second piston push rod, 71-piston, 72-protective pad, 8-elastic piece, 9-lug plate, 91-threaded hole, 10-long rod bolt and rubber sleeve 11.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and embodiments, it being understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.
Referring to fig. 2, 3 and 4, the invention provides an engine piston connecting rod dismounting tool, which comprises a fixed outer shell 4, a movable inner shell 5, a first piston push rod 6 and a second piston push rod 7;
one end of the fixed shell 4 is of an n-shaped structure with two output heads 41 and is transversely arranged, a semicircular arc edge 42 is arranged between the two output heads 41, and the arc edge 42 can be attached to the outer wall of the crankshaft to achieve the positioning effect.
The movable inner shell 5 is movably arranged inside the fixed outer shell 4, and it is further explained that the movable inner shell 5 can move left and right inside the fixed outer shell 4, when the movable inner shell 5 is in a right end state, two output heads on the movable inner shell 5 can extend out from the inside of the fixed outer shell 4, the extended movable inner shell 5 can drive the second piston push rod 7 to move, and the second piston push rod 7 pushes the connecting rod 3 to move; when the movable inner shell 5 is in a left end state, the two output heads are retracted into the fixed outer shell 4;
the elastic piece 8 is arranged between the movable inner shell 5 and the fixed outer shell 4; further, the elastic member 8 is a spring. The movable inner shell 5 can move from an initial left end state to a right end state under the action of external force (at the moment, the elastic element 8 is stretched); when the movable inner shell 5 loses the external force action, the movable inner shell 5 can be restored to the initial left end state under the elastic force action of the elastic member 8.
Second piston push rods 7 are respectively arranged at the positions of the two output heads of the movable inner shell 5, and a first piston push rod 6 is arranged at the other end of the movable inner shell 5; when the first piston push rod 6 is pushed into the movable inner shell 5, the second piston push rod 7 can extend out of the movable inner shell 5; when the first piston push rod 6 is pulled out from the movable inner shell 5, the second piston push rod 7 retracts into the movable inner shell 5.
Piston 71 is all installed to the one end that second piston push rod 7 and first piston push rod 6 are located the inside of activity inner shell 5 to being filled with certain pressure's gas in the activity inner shell 5, this gas is nitrogen gas, and nitrogen gas's stability is higher, receives not dangerous after compressing in the twinkling of an eye. The first piston rod 6 is moved by driving the second piston rod 7 by air pressure.
A positioning assembly is arranged between the movable inner shell 5 and the first piston push rod 6, and the positioning assembly can fix the positions of the first piston push rod 6 and the movable inner shell 5;
the positioning assembly comprises two groups of lug plates 9 which correspond to each other and are respectively arranged on the movable inner shell 5 and the first piston push rod 6, a threaded hole 91 is formed in the center of each lug plate 9, and a long rod bolt 10 is screwed in the threaded hole 91; when the first piston push rod 6 and the movable inner shell 5 need to be fastened, the long rod bolt 10 is screwed between the two corresponding ear plates 9; when the fastening between the first piston push rod 6 and the movable inner shell 5 is cancelled, the long rod bolt 10 between the first piston push rod and the movable inner shell is detached.
Referring to fig. 4, 5 and 6, in the present example, the tool is in use;
first, the fixed case 4 with the arc edge 42 is fitted to the crankshaft 1 (the arc edge 42 is brought into close contact with the outer wall of the crankshaft 1).
Subsequently, the long-rod bolt 10 is screwed between the corresponding two lug plates 9 (the first piston push rod 6 and the movable inner case 5 are fixed).
Then, lightly hammering one end of the first piston push rod 6 by hand, during hammering, the movable inner shell 5 will continuously move on the fixed outer shell 4, the reciprocating movable inner shell 5 will drive the end of the second piston push rod 7 to impact the bolt of the fastening connection cover 2, and the connecting rod 3 will move properly; the first piston push rod 6 and the movable inner shell 5 are locked through the positioning assembly in the hammering process, so that the first piston push rod 6 drives the second piston push rod 7 to move, and the hammering effect is poor (the reason for the deterioration is that the buffering effect of air pressure can digest impact force generated by hammering).
The connecting rod 3 after moving can enable the connecting cover 2 to be in a movable state, and the connecting cover 2 is manually removed from the crankshaft;
subsequently, the long-rod bolt 10 is detached from between the first piston push rod 6 and the two ear plates 9 of the movable inner shell 5 (the first piston push rod 6 and the movable inner shell 5 are in an active state); and when the first piston push rod 6 is pushed, the first piston push rod 6 can push an air cavity in the movable inner shell 5 to move, the moved air cavity can push the second piston push rod 7 to extend out, and the extended second piston push rod 7 can push the connecting rod 3 out of the combustion chamber.
Preferably, the rubber sleeve 11 is arranged at the hammered end of the first piston push rod 6, and the rubber sleeve 11 can play a role in protection, so that the scratch of the metal end surface to an hand is avoided when the end of the first piston push rod 6 is hammered by a hand.
In addition, the output end of the second piston push rod 7 is provided with a protection pad 72, the protection pad 72 can play a role in buffering, and due to the fact that machining precision of parts inside a piston cylinder is high, in the stage of disassembling the connecting cover 2, hard collision between the second piston push rod 7 and a bolt rod is avoided, the bolt rod is prevented from being damaged, and subsequent re-assembling work is prevented from being influenced.
In summary, the invention provides an engine piston connecting rod dismounting tool, which comprises a fixed outer shell, a movable inner shell, a first piston push rod and a second piston push rod; the one end of fixed shell is for having "n" type structure of horizontal placing of two output heads, is equipped with semicircular arc limit between two output heads, and this arc limit can laminate with the outer wall of bent axle, plays the effect of location. The movable inner shell is movably arranged in the fixed outer shell, and the movable inner shell can move left and right in the fixed outer shell, and when the movable inner shell is in a right end state, two output heads on the movable inner shell can extend out of the fixed outer shell; when the movable inner shell is in a left end state, the two output heads are retracted from the fixed outer shell; the elastic piece is arranged between the movable inner shell and the fixed outer shell; further, the elastic member is a spring. The movable inner shell can move from an initial left end state to a right end state (at the moment, the elastic piece is stretched) under the action of external force; when the movable inner shell loses the action of external force, the movable inner shell can be restored to the initial left end state under the action of the elastic force of the elastic piece. Second piston push rods are respectively arranged at the positions of the two output heads of the movable inner shell, and a first piston push rod is arranged at the other end of the movable inner shell; when the first piston push rod is pushed into the movable inner shell, the second piston push rod can extend out of the movable inner shell; when the first piston push rod is pulled out of the movable inner shell, the second piston push rod retracts into the movable inner shell. The piston connecting rod dismounting device can be used for dismounting the piston connecting rod, has diversified functions, replaces the traditional multi-tool dismounting, simplifies the dismounting process and is convenient to dismount.
The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (7)
1. A tool for disassembling a piston connecting rod of an engine is characterized by comprising a fixed outer shell, a movable inner shell, a first piston push rod and a second piston push rod;
the fixed shell is of an n-shaped structure which is provided with two output heads and is transversely arranged, and a semicircular arc edge is arranged between the two output heads;
the movable inner shell is movably arranged in the fixed outer shell, the position of the movable inner shell can be switched between a left end state and a right end state, and when the movable inner shell is in the right end state, two output heads positioned on the movable inner shell can extend out of one end of the fixed outer shell; when the movable inner shell is in a left end state, the two output heads are retracted into the fixed outer shell;
the elastic piece is arranged between the movable inner shell and the fixed outer shell;
second piston push rods are respectively arranged at the positions of the two output heads of the movable inner shell, and a first piston push rod is arranged at the other end of the movable inner shell; when the first piston push rod is pushed into the movable inner shell, the second piston push rod can extend out of the movable inner shell; when the first piston push rod is pulled out of the movable inner shell, the second piston push rod retracts into the movable inner shell;
and a detachable positioning assembly is arranged between the movable inner shell and the first piston push rod.
2. The engine piston connecting rod disassembling tool according to claim 1, wherein the elastic member is a spring.
3. The engine piston connecting rod dismounting tool according to claim 1, wherein pistons are mounted at one ends, located inside the movable inner shell, of the second piston push rod and the first piston push rod, and gas with certain pressure is filled in the movable inner shell.
4. The tool for disassembling the piston connecting rod of the engine according to claim 3, wherein the gas injected into the movable inner shell is nitrogen.
5. The engine piston connecting rod disassembling tool according to claim 1, wherein the positioning assembly includes two sets of lug plates corresponding to each other and respectively disposed on the movable inner shell and the first piston push rod, a threaded hole is formed at a center of each lug plate, and a long rod bolt is screwed into the threaded hole.
6. The engine piston connecting rod dismounting tool according to claim 1, wherein a rubber sleeve is arranged at one hammered end of the first piston push rod.
7. The engine piston connecting rod disassembling tool according to claim 1, characterized in that a protective pad is arranged at an output end of the second piston push rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210283971.6A CN114454116B (en) | 2022-03-22 | 2022-03-22 | Frock is dismantled to engine piston connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210283971.6A CN114454116B (en) | 2022-03-22 | 2022-03-22 | Frock is dismantled to engine piston connecting rod |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114454116A true CN114454116A (en) | 2022-05-10 |
| CN114454116B CN114454116B (en) | 2024-04-05 |
Family
ID=81417062
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210283971.6A Active CN114454116B (en) | 2022-03-22 | 2022-03-22 | Frock is dismantled to engine piston connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114454116B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2610391A (en) * | 1947-08-19 | 1952-09-16 | Federal Mogul Corp | Tool for assembling and disassembling connecting rods and their bearings |
| US4541158A (en) * | 1983-07-05 | 1985-09-17 | Zumwalt Floyd A | Piston and connecting rod removing and installation tool |
| DE19636089A1 (en) * | 1995-09-07 | 1997-03-13 | Avl Verbrennungskraft Messtech | Tool to assemble and disassemble pistons, connecting rods and cylinder liners of internal combustion engine |
| US5644827A (en) * | 1993-11-19 | 1997-07-08 | Alcobia; Ed | Apparatus for installing and removing piston rods |
| CN203956845U (en) * | 2014-06-12 | 2014-11-26 | 神龙汽车有限公司 | Guiding device is joined in piston rod assembling |
| CN205386707U (en) * | 2016-02-03 | 2016-07-20 | 内蒙古欧意德发动机有限公司 | Piston rod guider |
| CN210998488U (en) * | 2019-11-22 | 2020-07-14 | 攀枝花学院 | Lossless dismounting device for piston connecting rod set |
| CN211967226U (en) * | 2020-03-19 | 2020-11-20 | 江苏百安科技有限公司 | Guide tool for piston connecting rod set of engine |
-
2022
- 2022-03-22 CN CN202210283971.6A patent/CN114454116B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2610391A (en) * | 1947-08-19 | 1952-09-16 | Federal Mogul Corp | Tool for assembling and disassembling connecting rods and their bearings |
| US4541158A (en) * | 1983-07-05 | 1985-09-17 | Zumwalt Floyd A | Piston and connecting rod removing and installation tool |
| US5644827A (en) * | 1993-11-19 | 1997-07-08 | Alcobia; Ed | Apparatus for installing and removing piston rods |
| DE19636089A1 (en) * | 1995-09-07 | 1997-03-13 | Avl Verbrennungskraft Messtech | Tool to assemble and disassemble pistons, connecting rods and cylinder liners of internal combustion engine |
| CN203956845U (en) * | 2014-06-12 | 2014-11-26 | 神龙汽车有限公司 | Guiding device is joined in piston rod assembling |
| CN205386707U (en) * | 2016-02-03 | 2016-07-20 | 内蒙古欧意德发动机有限公司 | Piston rod guider |
| CN210998488U (en) * | 2019-11-22 | 2020-07-14 | 攀枝花学院 | Lossless dismounting device for piston connecting rod set |
| CN211967226U (en) * | 2020-03-19 | 2020-11-20 | 江苏百安科技有限公司 | Guide tool for piston connecting rod set of engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114454116B (en) | 2024-04-05 |
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