CN216803300U - Disassembling tool for adjusting gasket between piston rod and crosshead pin - Google Patents
Disassembling tool for adjusting gasket between piston rod and crosshead pin Download PDFInfo
- Publication number
- CN216803300U CN216803300U CN202122754840.5U CN202122754840U CN216803300U CN 216803300 U CN216803300 U CN 216803300U CN 202122754840 U CN202122754840 U CN 202122754840U CN 216803300 U CN216803300 U CN 216803300U
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- cushion block
- piston
- cylinder sleeve
- baffle
- piston rod
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Abstract
The utility model discloses a dismounting tool for adjusting a gasket between a piston rod and a crosshead pin, which comprises a cushion block, a baffle plate and a handle, wherein the cushion block is arranged on the bottom of the cushion block; the top surface of the cushion block is a plane, the bottom surface of the cushion block is an arc-shaped surface, and the shape of the bottom surface of the cushion block is matched with the shape of a scavenging port on a cylinder sleeve of the piston assembly; the baffle is fixed on one end of the cushion block in an inclined mode, and the handle is fixed on the outer side of the baffle. The piston is fixed by means of the outer wall of the cylinder sleeve, and the piston fixing device is simple in structure, low in cost and convenient to use. When the adjusting gasket is disassembled, the cushion block is inserted into the cylinder sleeve through the scavenging port of the cylinder sleeve, and the crankshaft is coiled to support the piston skirt on the cushion block, so that the piston can be reliably fixed, and the piston rod can be effectively separated from the crosshead pin by continuously coiling the crankshaft, so that the adjusting gasket is taken out, the operation is time-saving and labor-saving, and the disassembling efficiency is high.
Description
Technical Field
The utility model relates to a gasket dismounting tool, in particular to a dismounting tool for adjusting a gasket between a piston rod and a crosshead pin of a low-speed diesel engine, and belongs to the technical field of dismounting tools.
Background
The reciprocating motion piece of the marine low-speed diesel engine comprises a piston assembly, a crosshead slide block and a connecting rod, wherein a piston rod of the piston assembly is connected with the crosshead slide block through a crosshead pin, and the crosshead slide block is connected with one end of the connecting rod. The positioning of the reciprocating member is an important part of the structure adjustment of the diesel engine, and can ensure that the piston assembly moves along the axis of the cylinder sleeve, thereby reducing the friction loss in the moving process. The premise that the reciprocating motion part is centered is to adjust the inclination of the piston, the adjusting shim is a key part for adjusting the inclination of the piston, and the adjusting shim is eccentrically worn to compensate for the inclination of the piston according to the measuring result of the inclination of the piston during adjustment so as to ensure that the piston assembly is centered in the cylinder sleeve.
Because the adjustment shim is mounted between the piston rod and the cross pin, the adjustment shim can be removed for eccentric wear only after the piston rod and the cross pin are separated. In a cold state, the diesel engine drives the connecting rod crosshead assembly and the piston assembly to move through the coiled crankshaft, and in order to separate the piston rod from the crosshead pin, the piston must be fixed, the crosshead pin moves downwards, and the piston and the crosshead pin are separated under the action of tensile force. At present, the conventional method for fixing the piston is to fix the piston head through a piston hoisting tool or fix the piston rod by a threaded hole on the lower plane of the cylinder body, but the two methods are complex to operate and have large workload.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a tool for assembling and disassembling an adjusting gasket between a piston rod and a crosshead pin, which has the advantages of simple structure, time-saving and labor-saving operation, safety and reliability.
The utility model is realized by the following technical scheme:
a disassembly and assembly tool for adjusting a gasket between a piston rod and a crosshead pin comprises a cushion block, a baffle plate and a handle; the top surface of the cushion block is a plane, the bottom surface of the cushion block is an arc-shaped surface, and the shape of the bottom surface of the cushion block is matched with the shape of a scavenging port on the cylinder sleeve; the baffle is obliquely fixed on one end of the cushion block, and the handle is fixed on the outer side of the baffle.
The object of the utility model is further achieved by the following technical measures.
In the tool for disassembling and assembling the adjusting gasket between the piston rod and the crosshead pin, the inclination angle alpha of the baffle plate is matched with the inclination angle of the scavenging port on the cylinder sleeve of the piston assembly.
In the dismounting tool for adjusting the gasket between the piston rod and the crosshead pin, the width L of the baffle is greater than the width of the scavenging port on the cylinder sleeve of the piston assembly.
In the tool for disassembling and assembling the adjusting shim between the piston rod and the crosshead pin, the handle is semicircular.
The piston rod and the crosshead pin are provided with a gasket, and the bottom of the piston skirt is supported on the top surface of the cushion block during assembling and disassembling.
The piston is fixed by means of the outer wall of the cylinder sleeve, and the piston fixing device is simple in structure, low in cost and convenient to use. When the adjusting gasket is disassembled, the cushion block is inserted into the cylinder sleeve through the scavenging port of the cylinder sleeve, and the crankshaft is coiled to support the piston skirt on the cushion block, so that the piston can be reliably fixed, and the piston rod can be effectively separated from the crosshead pin by continuously coiling the crankshaft, so that the adjusting gasket is taken out, the operation is time-saving and labor-saving, and the disassembling efficiency is high. The width of the baffle is larger than that of the scavenging port on the cylinder sleeve of the piston assembly, so that the utility model can be accurately positioned, is safe and reliable, and can further improve the working efficiency.
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 top view of FIG. 1;
fig. 3 is a schematic structural view of a use state of the present invention.
Detailed Description
The utility model is further illustrated by the following figures and examples.
As shown in fig. 1 and 2, the present invention includes a head block 1, a barrier 2, and a handle 3. The top surface 11 of cushion 1 is the plane, and the bottom sprag of piston skirt 4 is on the top surface 11 of cushion 1 during dismouting, and the bottom surface 12 of cushion 1 is the arcwall face, and the shape of the bottom surface 12 of cushion 1 matches with the shape of scavenging port 51 on the cylinder liner 5, and the length of cushion 1 is used not to touch the piston rod as the standard. The baffle 2 is welded and fixed on one end of the cushion block 1 in an inclined way, the inclined angle alpha of the baffle 2 is matched with the inclined angle of the scavenging port 51 on the cylinder sleeve, and the width L of the baffle 2 is larger than the width of the scavenging port 51 on the cylinder sleeve 5. The handle 3 is semicircular, and the handle 3 is welded and fixed on the outer side of the baffle 2.
As shown in fig. 3, when the adjusting shim is detached, the connecting bolt of the piston rod and the crosshead pin is firstly detached, then the crankshaft is turned to drive the piston to move upwards until the distance between the bottom of the piston skirt 4 and the root of the scavenging port 51 is slightly larger than the height of the cushion block 1, at this time, the cushion blocks 1 are respectively inserted into the cylinder sleeve 5 through the corresponding scavenging ports 51 and are positioned through the outer wall of the cylinder sleeve 5, the crankshaft is turned reversely to drive the piston to move downwards until the bottom of the piston skirt 4 is supported on the cushion blocks 1, at this time, the piston is fixed, the piston rod is fixed therewith, the crankshaft is turned reversely continuously, the crosshead pin moves downwards under the tensile force of the connecting rod to be separated from the piston rod, the crosshead pin continues to move downwards to a certain distance, and the adjusting shim can be taken out smoothly. And adjusting the reverse operation of the gasket installation process.
In addition to the above embodiments, the present invention may have other embodiments, and all technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the present invention.
Claims (5)
1. The utility model provides a mounting and dismounting tool of adjusting shim between piston rod and cross head pin which characterized in that: comprises a cushion block, a baffle plate and a handle; the top surface of the cushion block is a plane, the bottom surface of the cushion block is an arc-shaped surface, and the shape of the bottom surface of the cushion block is matched with the shape of a scavenging port on a cylinder sleeve of the piston assembly; the baffle is obliquely fixed on one end of the cushion block, and the handle is fixed on the outer side of the baffle.
2. The tool for removing shims according to claim 1, wherein: the inclination angle alpha of the baffle is matched with the inclination angle of the scavenging port on the cylinder sleeve of the piston assembly.
3. The tool for removing shims according to claim 2, wherein: the width L of the baffle is larger than the width of the scavenging port on the cylinder sleeve of the piston assembly.
4. The tool for removing shims according to claim 1, wherein: the handle is semicircular.
5. The tool for removing shims according to claim 1, wherein: the bottom of the piston skirt is supported on the top surface of the cushion block during disassembly and assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122754840.5U CN216803300U (en) | 2021-11-11 | 2021-11-11 | Disassembling tool for adjusting gasket between piston rod and crosshead pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122754840.5U CN216803300U (en) | 2021-11-11 | 2021-11-11 | Disassembling tool for adjusting gasket between piston rod and crosshead pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216803300U true CN216803300U (en) | 2022-06-24 |
Family
ID=82049331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122754840.5U Active CN216803300U (en) | 2021-11-11 | 2021-11-11 | Disassembling tool for adjusting gasket between piston rod and crosshead pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216803300U (en) |
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2021
- 2021-11-11 CN CN202122754840.5U patent/CN216803300U/en active Active
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