CN216971784U - Turning device for crosshead pin of marine low-speed diesel engine - Google Patents
Turning device for crosshead pin of marine low-speed diesel engine Download PDFInfo
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- CN216971784U CN216971784U CN202122948399.4U CN202122948399U CN216971784U CN 216971784 U CN216971784 U CN 216971784U CN 202122948399 U CN202122948399 U CN 202122948399U CN 216971784 U CN216971784 U CN 216971784U
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- crosshead pin
- conversion block
- bearing box
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Abstract
A turning device of a crosshead pin of a marine low-speed diesel engine comprises a turning conversion block, a laying cloth and a plurality of supporting blocks; the turnover conversion block comprises a bearing box body and a supporting part, the bearing box body is a box body type component, the upper plane is a bearing surface, the bottom surface comprises a large-radius arc surface and a small-radius arc surface which are used for realizing mutual smooth connection of the turnover conversion block along the ground, the supporting part is fixedly connected to the right end of the bearing box body and extends upwards, and the upper plane of the supporting part is a supporting surface; the cloth liner is laid on the bearing surface and the supporting part of the bearing box body and clamped between the turning conversion block and the crosshead pin; every two supporting blocks in the plurality of supporting blocks are a pair and are symmetrically arranged on the ground at the right side of the turning conversion block. The utility model realizes the turnover of the crosshead pin from the vertical state to the horizontal state, has safe and simple operation process, reduces the labor intensity of operators and improves the production efficiency.
Description
Technical Field
The utility model relates to process equipment for processing a diesel engine, in particular to a turnover device for a crosshead pin of a marine low-speed diesel engine, and belongs to the technical field of diesel engine manufacturing.
Background
The crosshead pin of the marine low-speed diesel engine is a cylindrical structural part, the outer circular surface and two end surfaces of the crosshead pin are provided with parts needing to be machined, and after the previous contents on the outer circular surface and the end surfaces are machined, the crosshead pin needs to be turned on a grinding machine to grind the outer circular surface of the crosshead pin, so that the crosshead pin needs to be turned over at the moment and is converted from a vertical state to a horizontal state.
The existing turning-over method of the crosshead pin comprises the steps that two lifting ring screws are installed on the upward end face of the crosshead pin and are lifted in a vertical state, after the crosshead pin is lifted to a certain height away from the ground, one of the lifting ring screws is detached and is refitted to a lifting hole on the other end face of the crosshead pin, then the height of two lifting hooks away from the ground is adjusted, the two ends of the crosshead pin are gradually leveled, and the crosshead pin is gradually changed into a horizontal state. However, the turning-over method needs an operator to disassemble and assemble the lifting ring screw in a state that the workpiece is suspended, potential safety hazards exist in operation, the turning-over process takes a long time, the operation efficiency is low, and in addition, the turning-over method also occupies driving resources for a long time, so that other production schedules are influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a turning device for a crosshead pin of a marine low-speed diesel engine, which can quickly and stably change the crosshead pin from a vertical state to a horizontal state so as to achieve the effects of improving the operation efficiency and reducing the potential safety hazard.
The technical scheme adopted by the utility model for solving the technical problem is as follows:
the utility model provides a turning device of marine low-speed diesel engine cross head pin, the cross head pin is including the little cylinder of the big cylinder in the middle of and both sides, its characterized in that: the turnover device comprises a turnover conversion block, a piece of cloth liner and a plurality of supporting blocks;
the turnover conversion block comprises a bearing box body and a supporting part, the bearing box body is a box body type component, the upper plane is a bearing surface and is used for placing the crosshead pin, the bottom surface comprises a large-radius arc surface and a small-radius arc surface and is used for realizing the rolling of the turnover conversion block along the ground, the small-radius arc surface is connected to the right side of the large-radius arc surface in a smooth mode and is connected with the right side surface of the bearing box body, the supporting part is fixedly connected to the right end of the bearing box body and extends upwards along the right side surface of the bearing box body, and the upper plane of the supporting part is a supporting surface and is used for supporting the step end face of a large cylinder of the crosshead pin;
the cloth liner is laid on the bearing surface of the bearing box body and the supporting part and clamped between the turning conversion block and the crosshead pin so as to protect the processed surface of the crosshead pin;
and every two of the supporting blocks are a pair, are symmetrically arranged on the ground on the right side of the turnover conversion block and are used for placing a cross head pin in a horizontal state.
Furthermore, the bearing box body is formed by welding steel plates, and a plurality of round holes used for reducing the whole weight of the turnover conversion block are formed in the steel plates on the side faces.
Furthermore, the supporting block is a trapezoidal wedge block, and one side of the supporting block is provided with an inclined supporting surface which is contacted with the outer circular surface of the crosshead pin.
Furthermore, the number of the supporting blocks is double, and the supporting surfaces of every two supporting blocks are arranged oppositely.
The beneficial effects obtained by the utility model are as follows: the turnover operation of the crosshead pin is safer and more convenient, the personal safety of workers is ensured, and the production efficiency is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a three-dimensional schematic of the present invention.
Fig. 3 is a schematic structural diagram of the turnover conversion block.
FIG. 4 is a schematic view of the support block.
Fig. 5 is one of schematic illustrations of the turn-over process of the cross pin.
Fig. 6 is a second schematic view of the turn-over process of the cross pin.
In the figure: the device comprises a turning conversion block 1, a bearing box body 11, a large-radius arc surface 111, a small-radius arc surface 112, a bearing surface 113, a circular hole 114, a supporting part 12, a supporting surface 121, a cloth liner 2, a crosshead pin 3, a flying ring 4, a steel wire rope 5, a supporting block 6, a supporting surface 61 and a ground 7.
Detailed Description
The utility model is described in further detail below with reference to the figures and examples.
The utility model is used for turning over operation of a crosshead pin of a marine low-speed diesel engine, the crosshead pin comprises a large cylinder in the middle and small cylinders at two sides, and the outer side of each small cylinder is an end face.
Referring to fig. 1 and 2, the turning device includes a turning conversion block 1, a cloth liner 2 and a plurality of support blocks 6.
Referring to fig. 3, the turning conversion block 1 is a box-type member, and includes a bearing box 11 and a support 12.
The bearing box body 11 is a box body formed by welding steel plates and is used for bearing the crosshead pin 3; the upper plane of the bearing box body 11 is a bearing surface 113 for placing the crosshead pin 3, the bottom surface comprises a large-radius arc surface 111 and a small-radius arc surface 112, the large-radius arc surface 111 is positioned at the bottom, the small-radius arc surface 112 is connected to the right side of the large-radius arc surface 111 and connected with the right side surface of the bearing box body 11, and the large-radius arc surface 111 and the small-radius arc surface 112 are connected smoothly to realize the rolling of the turnover conversion block 1 along the ground. A plurality of round holes 114 are arranged on the steel plate on the side surface of the bearing box body 11 so as to reduce the whole weight of the turning conversion block 1.
The support portion 12 is a plate-shaped member, is fixedly connected to the right end of the load-bearing box 11, and extends upward along the right side of the load-bearing box 11. The upper plane of the support portion 12 is a support surface 121 for supporting the end surface of the large cylinder of the crosshead pin 3.
Referring to fig. 2, the cloth liner 2 is sandwiched between the body turning conversion block 1 and the cross pin 3, and laid on the bearing surface 113 of the bearing box 11 and the supporting portion 12 to protect the cross pin 3, prevent damage to a machined surface, and ensure the quality of the cross pin 3.
Referring to fig. 4, the supporting block 6 is a trapezoidal wedge, and a supporting surface 61 is disposed at one side of the trapezoidal wedge. The number of the supporting blocks 6 is generally double, every two supporting blocks 6 are a pair, the supporting surfaces 61 are symmetrically arranged on the ground on the right side of the turnover conversion block 1 oppositely, the turnover crosshead pin 3 is contacted with the supporting surfaces 61 on the outer circular surface and is placed between the supporting blocks 6, and the crosshead pin 3 which is converted into a horizontal state is prevented from rolling on the ground.
The using process of the utility model is as follows:
referring to fig. 5, the turning conversion block 1 is placed on the ground 7, the large-radius arc surface 111 contacts with the ground 7, and the cloth liner 2 is placed on the bearing surface 113 and the supporting part 12 of the bearing box body 11; the steel wire rope 5 penetrates through a hanging ring 4 connected to the upper end face of the crosshead pin 3, the crosshead pin 3 in a vertical state is hung, the lower end face of a small cylinder is placed on a bearing face 113 of the turnover conversion block 1, meanwhile, the step end face of a large cylinder of the crosshead pin 3 is in contact with a supporting face 121 at the upper end of a supporting part 12, so that a supporting effect is achieved in the turnover process, and four supporting blocks 4 are placed on the ground 7 on the right side of the turnover conversion block 1 according to the size of the crosshead pin 3; the travelling crane is slowly moved towards the direction of the supporting block 4, the turning-over conversion block 1 is driven to roll on the ground 7 by virtue of the inclined gravity of the cross head pin 3, the contact point of the turning-over conversion block and the ground 7 is gradually transited from the large-radius arc surface 111 to the small-radius arc surface 112, and the cross head pin 3 is slowly converted from the vertical state to the horizontal state; slowly transferring the lifting hook to enable the cross head pin 3 to be gradually close to the ground 7, falling on the four supporting blocks 4, unloading a lifting ring of the upper end face, loading the lifting ring to a lifting hole of the lower end face, finally lifting the cross head pin 3 in a horizontal state, and finishing the whole turnover process.
By using the turnover device, the turnover of the crosshead pin from the vertical state to the horizontal state is realized, the operation process is safe and simple, the labor intensity of operators is reduced, and the production efficiency is improved.
The above embodiments are not intended to limit the scope of the present invention, and the claimed invention is not limited to the above embodiments, but also includes other obvious modifications and substitutions, and all equivalent changes and modifications made according to the contents of the present invention are within the scope of the present invention.
Claims (4)
1. The utility model provides a turnover device of marine low-speed diesel engine cross pin, the cross pin is including the little cylinder of the big cylinder in middle and both sides, its characterized in that: the turnover device comprises a turnover conversion block, a piece of cloth liner and a plurality of supporting blocks;
the turnover conversion block comprises a bearing box body and a supporting part, the bearing box body is a box body type component, the upper plane is a bearing surface and is used for placing the crosshead pin, the bottom surface comprises a large-radius arc surface and a small-radius arc surface and is used for realizing the rolling of the turnover conversion block along the ground, the small-radius arc surface is connected to the right side of the large-radius arc surface in a smooth mode and is connected with the right side surface of the bearing box body, the supporting part is fixedly connected to the right end of the bearing box body and extends upwards along the right side surface of the bearing box body, and the upper plane of the supporting part is a supporting surface and is used for supporting the step end face of a large cylinder of the crosshead pin;
the cloth liner is laid on the bearing surface of the bearing box body and the supporting part and clamped between the turning conversion block and the crosshead pin so as to protect the processed surface of the crosshead pin;
and every two of the supporting blocks are a pair, are symmetrically arranged on the ground on the right side of the turnover conversion block and are used for placing a cross head pin in a horizontal state.
2. The turning device of the crosshead pin of the marine low-speed diesel engine according to claim 1, wherein: the bearing box body is formed by welding steel plates, and a plurality of round holes used for reducing the whole weight of the turnover conversion block are formed in the steel plates on the side faces.
3. The turning device of the crosshead pin of the marine low-speed diesel engine according to claim 1, wherein: the supporting block is a trapezoidal wedge block, and one side of the supporting block is provided with an inclined supporting surface which is contacted with the outer circular surface of the crosshead pin.
4. The turning device of the crosshead pin of the marine low-speed diesel engine according to claim 3, wherein: the number of the supporting blocks is double, and the supporting surfaces of every two supporting blocks are arranged oppositely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122948399.4U CN216971784U (en) | 2021-11-29 | 2021-11-29 | Turning device for crosshead pin of marine low-speed diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122948399.4U CN216971784U (en) | 2021-11-29 | 2021-11-29 | Turning device for crosshead pin of marine low-speed diesel engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216971784U true CN216971784U (en) | 2022-07-15 |
Family
ID=82345795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122948399.4U Active CN216971784U (en) | 2021-11-29 | 2021-11-29 | Turning device for crosshead pin of marine low-speed diesel engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216971784U (en) |
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2021
- 2021-11-29 CN CN202122948399.4U patent/CN216971784U/en active Active
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