CN211681817U - Engine piston link mechanism extracting tool - Google Patents
Engine piston link mechanism extracting tool Download PDFInfo
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- CN211681817U CN211681817U CN201922139248.7U CN201922139248U CN211681817U CN 211681817 U CN211681817 U CN 211681817U CN 201922139248 U CN201922139248 U CN 201922139248U CN 211681817 U CN211681817 U CN 211681817U
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- piston
- rod
- connecting rod
- sliding
- sliding sleeve
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Abstract
The utility model belongs to the technical field of automobile engine equipment tools, in particular to an engine piston link mechanism disassembling tool; comprises a sliding rod, a sliding sleeve, a connecting rod, a fixed pin, a piston supporting leg, a telescopic fixed rod and a rubber pad; the sliding rod is nested in the sliding sleeve, one end of the connecting rod is fixedly connected to the side face of the lower end of the sliding sleeve, one end of the piston supporting leg is connected to the side face of the lower end of the sliding rod through a fixing pin, the other end of the connecting rod is connected to the middle of the piston supporting leg through a bolt, and the telescopic fixing rod with the rubber pad at the head is connected to the bottom of the sliding rod in a threaded mode; the piston connecting rod mechanism is suitable for W-shaped pistons with various diameter sizes, and can be detached more efficiently and conveniently in a W-shaped combustion chamber piston connecting rod mechanism of a diesel engine.
Description
Technical Field
The utility model belongs to the technical field of automobile engine equips instrument, concretely relates to engine piston link mechanism extracting tool.
Background
In general, the service environment of the engine of the commercial vehicle is severe. Therefore, various engine failures are possible, and in many cases, the piston rod mechanism needs to be disassembled during maintenance, and the piston rod mechanism includes a plurality of easily worn parts, which require frequent maintenance and disassembly. In the process of actually disassembling the piston connecting rod, the general sequence is that the connecting rod cover and the connecting cover tile at the big end of the connecting rod are firstly disassembled, and then the bottom of the piston is knocked from bottom to top to push the piston connecting rod out of the cylinder. The work of taking out the piston connecting rod needs an operator to knock the piston upwards at the bottom of the engine, the actual operation space in the process is small, the position is difficult to align in the knocking process, the knocking force is difficult to control, oil drops are easy to splash, and the situation that the piston is scratched in the knocking process happens occasionally. To avoid the above problem, a tool for taking out the piston link mechanism from above is required.
The invention provides a piston extraction tool in the prior patent CN109571355A, and the invention provides the piston extraction tool, wherein axial force is changed into radial force pressing against the inner wall of a piston combustion chamber through the mutual matching of two conical surfaces, so that the piston is more conveniently taken out, the piston disassembly and assembly efficiency is improved, and the piston is firmly fixed during extraction.
The prior patent CN108177118A provides a tool for detaching a piston and a piston detaching method, and also relates to the technical field of detaching tools for engine pistons, in particular to a tool for detaching a piston and a piston detaching method. The tool and the method can realize tensioning of the piston from the inside of the top, can realize quick pulling of the piston, effectively reduce labor intensity and danger of workers, cannot damage the piston body when the piston is detached, and improve the recycling rate of the piston.
The two prior patents have basically the same principle, and both utilize a tool to convert an axial force into a radial force, the radial force acts on the surface of a combustion chamber of the piston to generate a friction force in the direction opposite to the radial force, and the piston is taken out by utilizing the friction force. However, these structures also have problems in use, for example, the surfaces of the combustion chamber are not protected during the process of taking out the piston by using friction force, and the piston is scratched; these structures are more suitable for the disassembly of the cylindrical deep pit type combustion chamber piston, and are not very suitable for the W type piston.
Disclosure of Invention
In order to overcome the problem, the utility model provides an engine piston link mechanism extracting tool is applicable to the W type piston of multiple diameter size, can realize the more high-efficient convenient dismantlement of diesel engine W type combustion chamber piston link mechanism.
An engine piston link mechanism disassembling tool comprises a sliding rod 1, a sliding sleeve 2, a connecting rod 5, a fixing pin 6, a piston supporting foot 7, a telescopic fixing rod 8 and a rubber pad 9; the sliding rod 1 is nested inside the sliding sleeve 2, one end of the connecting rod 5 is fixedly connected to the side face of the lower end of the sliding sleeve 2, one end of the piston supporting leg 7 is connected to the side face of the lower end of the sliding rod 1 through the fixing pin 6, the other end of the connecting rod 5 is connected to the middle of the piston supporting leg 7 through a bolt, and the telescopic fixing rod 8 with the rubber pad 9 at the head is connected to the bottom of the sliding rod 1 through threads.
The utility model has the advantages that:
1. the utility model can realize more efficient and convenient disassembly of the piston link mechanism of the W-shaped combustion chamber of the diesel engine;
2. the utility model discloses can realize the operation in narrow and small space.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the present invention.
Fig. 3 is a schematic view of a part of the structure of the present invention.
Fig. 4 is a schematic view of a part of the structure of the present invention.
Wherein: 1 a slide bar; 2, sliding sleeves; 3, a nut; 4, bolts; 5 connecting rods; 6, fixing pins; 7, supporting feet of the piston; 8, a telescopic fixing rod; 9 rubber pad.
Detailed Description
An engine piston link mechanism disassembling tool comprises a sliding rod 1, a sliding sleeve 2, a connecting rod 5, a fixing pin 6, a piston supporting foot 7, a telescopic fixing rod 8 and a rubber pad 9; the sliding rod 1 is nested inside the sliding sleeve 2, the upper end and the lower end of the sliding rod 1 extend out of the sliding sleeve 2, one ends of four connecting rods 5 are fixedly connected to four sides of the lower end of the sliding sleeve 2 respectively, one ends of four piston supporting legs 7 are connected to four sides of the lower end of the sliding rod 1 respectively through fixing pins 6, the other end of each connecting rod 5 is connected to the middle of the corresponding piston supporting leg 7 through bolts, and the head of each telescopic fixing rod 8 with a rubber pad 9 is connected to the bottom of the sliding rod 1 through threads.
The sliding rod 1 is integrally nested inside the sliding sleeve 2; one end of a connecting rod 5 is fixed at the bottom of the sliding sleeve 2 by using a bolt and a nut, and the other end of the connecting rod 5 is connected with the middle part of a piston supporting leg 7 by using a bolt and a nut; one end of a piston supporting leg 7 is fixed on the sliding rod 1 by using a fixing pin 6, and a telescopic fixing rod 8 with a rubber pad 9 at the head is connected to the bottom of the sliding rod 1 by using threads.
Wherein, the telescopic fixing rod 8 is a telescopic structure with a spring inside and is used for pressing the top of the combustion chamber; the head of the piston supporting leg 7, which contacts the end of the piston combustion chamber, is lined with brass to protect the piston surface during removal. The sliding rod 1, the sliding sleeve 2, the connecting rod 5 and the piston supporting leg 7 in the whole set of tool are all made of cast iron materials, the fixing pin 6 is made of low-carbon steel materials, and the rubber pad 9 is made of rubber materials.
The working principle is as follows:
the sliding rod 1 is nested in the sliding sleeve 2, the piston supporting legs 7 are fixed at the bottom of the sliding rod 1 through pin connection by the fixing pins 6, two ends of the connecting rod 5 are respectively fixed at the bottom of the sliding sleeve 2 and the middle of the piston supporting legs 7 by the nuts 3 and the bolts 4, the telescopic fixing rod 8 is installed at the bottom of the sliding rod 2 in a threaded connection mode, and the rubber pad 9 is installed at the bottom of the telescopic fixing rod 8.
When the tool is used, firstly, the connecting rod cover and the connecting cover tile of the big end of the connecting rod are detached; then, the piston supporting legs 7 and the telescopic fixing rods 8 extend into the W-shaped combustion chamber and the tool is vertically placed; then the sliding rod 1 is pressed downwards, the sliding sleeve 2 is pulled upwards, so that the telescopic fixing rod 8 is pressed against the top of the combustion chamber, and the four piston supporting legs 7 are pressed against the inner wall of the combustion chamber of the piston; finally, the handle which grasps the sliding rod 1 and the sliding sleeve 2 is lifted upwards to take out the piston connecting rod mechanism.
The piston supporting leg 7 can rotate in a large range, and a spring is arranged in the telescopic fixing rod 8 to realize telescopic movement in a large range, so that the tool can be suitable for W-shaped combustion chamber piston engines with various diameters.
Claims (1)
1. An engine piston link mechanism disassembling tool is characterized by comprising a sliding rod (1), a sliding sleeve (2), a connecting rod (5), a fixing pin (6), a piston supporting leg (7), a telescopic fixing rod (8) and a rubber pad (9); the sliding rod (1) is nested inside the sliding sleeve (2), one end of the connecting rod (5) is fixedly connected to the side face of the lower end of the sliding sleeve (2), one end of the piston supporting leg (7) is connected to the side face of the lower end of the sliding rod (1) through the fixing pin (6), the other end of the connecting rod (5) is connected to the middle of the piston supporting leg (7) through a bolt, and the telescopic fixing rod (8) with the rubber pad (9) at the head is connected to the bottom of the sliding rod (1) in a threaded mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922139248.7U CN211681817U (en) | 2019-12-03 | 2019-12-03 | Engine piston link mechanism extracting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922139248.7U CN211681817U (en) | 2019-12-03 | 2019-12-03 | Engine piston link mechanism extracting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211681817U true CN211681817U (en) | 2020-10-16 |
Family
ID=72789357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922139248.7U Active CN211681817U (en) | 2019-12-03 | 2019-12-03 | Engine piston link mechanism extracting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211681817U (en) |
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2019
- 2019-12-03 CN CN201922139248.7U patent/CN211681817U/en active Active
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