CN219953938U - Marine hydraulic cylinder shaft pin structure - Google Patents
Marine hydraulic cylinder shaft pin structure Download PDFInfo
- Publication number
- CN219953938U CN219953938U CN202321054824.8U CN202321054824U CN219953938U CN 219953938 U CN219953938 U CN 219953938U CN 202321054824 U CN202321054824 U CN 202321054824U CN 219953938 U CN219953938 U CN 219953938U
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- CN
- China
- Prior art keywords
- pin body
- shaft pin
- hole
- sealing cover
- clamping hole
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 51
- 239000010687 lubricating oil Substances 0.000 abstract description 16
- 238000012423 maintenance Methods 0.000 abstract description 4
- 238000004891 communication Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Clamps And Clips (AREA)
Abstract
The utility model discloses a marine hydraulic cylinder shaft pin structure, which comprises: the shaft pin body is provided with a clamping hole which is detachably connected with the dismounting tool along the length direction of the shaft pin body, the bottom wall of the clamping hole of the shaft pin body is provided with a first flow hole along the length direction of the shaft pin body, and the side wall of the shaft pin body is provided with a plurality of second flow holes which are communicated with the first flow holes at intervals; one end of the first sealing cover is detachably arranged in the clamping hole and used for sealing the clamping hole, and a third flow hole is formed in the first sealing cover along the length direction of the first sealing cover; and a second sealing cover having one end detachably disposed in the third flow hole for sealing the third flow hole. Through the mode, the marine hydraulic cylinder shaft pin structure disclosed by the utility model is convenient to detach, the shaft pin body can be detached from the base rapidly, the efficiency is high, lubricating oil can be filled into the shaft pin body, the shaft pin body can keep good lubricity, the lubricating oil does not need to be added frequently, and the maintenance cost is low.
Description
Technical Field
The utility model relates to the technical field of marine hydraulic cylinders, in particular to a shaft pin structure of a marine hydraulic cylinder.
Background
The hydraulic system of the ship hatch cover of the flexible ship is a hydraulic system for the folding hatch cover, the opening or closing of the ship hatch cover is realized through the extension and contraction of a hydraulic cylinder arranged between an articulated arm and a deck of an active cover plate, as shown in fig. 1, a first ear ring 11 is arranged at the bottom end of a cylinder barrel of the hydraulic cylinder 1, a second ear ring 12 is arranged at the top end of a piston rod of the hydraulic cylinder 1, the ship hatch cover is provided with a first base, a second base is arranged in the ship hatch cover, the first base is provided with a first bottom plate 20, a first clamping plate 21 and a second clamping plate 22 are arranged in the first bottom plate 20 at intervals, the second base comprises a second bottom plate 30, a third clamping plate 31 and a fourth clamping plate 32 which are arranged in the second bottom plate 30 at intervals, the first clamping plate 21 is provided with a first through hole corresponding to the first ear ring 11, the second clamping plate 22 is provided with a second through hole corresponding to the first through hole, the third clamping plate 31 is provided with a third through hole corresponding to the second ear ring 12, the fourth clamping plate 32 is provided with a fourth through hole corresponding to the third through hole, and when the first base is fixed, and the first base is provided with the first ear ring 41 passes through the first ear ring 21, the second ear ring 31 and the second ear ring 12 passes through the second through the first through hole 12 and the fourth through hole 12 to be fixed on the base.
However, since the hydraulic cylinder is exposed to the deck surface for a long period of time, the shaft pins (including the first shaft pin 41 and the second shaft pin 42) are easily rusted, and in order to prevent rusting, lubricating oil is often smeared or injected toward the shaft pins, but such an effect is poor, frequent lubricating oil addition is required, resulting in high maintenance costs, and once the added lubricating oil is too small, difficulty in disassembly is easily caused.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a marine hydraulic cylinder shaft pin structure to solve the technical problems.
In order to solve the technical problems, the utility model provides the following technical scheme: a marine cylinder pin structure, comprising: the shaft pin body is in a strip cylinder shape, one end of the shaft pin body is provided with a clamping hole which is detachably connected with a disassembling tool along the length direction of the shaft pin body, the bottom wall of the clamping hole of the shaft pin body is provided with a first flow hole along the length direction of the shaft pin body, and the side wall of the shaft pin body is provided with a plurality of second flow holes communicated with the first flow holes at intervals; the first sealing cover is cylindrical, one end of the first sealing cover is detachably arranged in the clamping hole and is used for sealing the clamping hole, and a third flow hole is formed in the first sealing cover along the length direction of the first sealing cover; a second sealing cover which is cylindrical and one end of which is detachably arranged in the third flow hole and is used for sealing the third flow hole; wherein, the aperture of the clamping hole is larger than the aperture of the first flow hole.
Further, a first groove is formed in the side wall of the shaft pin body along the length direction of the shaft pin body, and one end of the second flow hole is located in the first groove.
Further, one end of the shaft pin body is provided with a second groove.
Further, a plurality of blind holes are formed in the first sealing cover at intervals away from the other end of the clamping hole.
Further, the dismounting tool is a screw rod, a first internal thread in threaded connection with the screw rod is arranged on the inner wall of the clamping hole of the shaft pin body, and a first external thread in threaded connection with the first internal thread is arranged on the other end of the first sealing cover.
Further, a second internal thread is arranged on the inner wall of the third flow hole of the first sealing cover, and a second external thread in threaded connection with the second internal thread is arranged at one end of the second sealing cover.
Further, the length of the first sealing cover is smaller than the depth of the clamping hole.
Compared with the prior art, the utility model provides a marine hydraulic cylinder shaft pin structure, which has the following beneficial effects: the marine hydraulic cylinder shaft pin structure disclosed by the utility model is convenient to detach, the shaft pin body can be quickly detached from the base only by clamping the detaching tool in the clamping hole of the shaft pin body, the efficiency is high, lubricating oil can be filled into the shaft pin body, the shaft pin body is kept to have better lubricity, the lubricating oil does not need to be added frequently, and the maintenance cost is lower.
Drawings
FIG. 1 is a schematic diagram of a prior art hydraulic cylinder mounting structure;
FIG. 2 is a schematic structural view of the marine cylinder pin structure of the present utility model;
fig. 3 is a schematic view showing a sectional structure of the pin structure of the hydraulic cylinder for a ship in fig. 2.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 2 to 3, the present utility model provides a hydraulic cylinder pin structure for a ship, which includes a pin body 10, a first sealing cover 11, and a second sealing cover 12.
The shaft pin body 10 is in a long cylindrical shape, wherein one end of the shaft pin body 10 is provided with a clamping hole 100 detachably connected with a disassembling tool along the length direction thereof. It should be understood that the pin body 10 is caught on the bases (i.e., the first base and the second base in fig. 1), so that when the pin body 10 needs to be removed, the removal tool is caught in the catching hole 100 directly and then pulled by a person or a machine, thereby pulling the pin body 10 out of the base.
Preferably, the disassembling tool is a screw rod, and the inner wall of the clamping hole 100 of the shaft pin body 10 is provided with a first internal thread in threaded connection with the screw rod, so that when the shaft pin body 10 needs to be disassembled, one end of the screw rod is directly in threaded connection with the clamping hole 100 to realize disassembly. That is, the dismounting tool is detachably connected to the clamping hole 100 of the pin body 10 in a threaded manner, however, in other embodiments, the dismounting tool may be detachably connected to the clamping hole 100 of the pin body 10 in other manners, such as a snap connection, etc.
In the present embodiment, the bottom wall of the clamping hole 100 of the pin body 10 is provided with a first flow hole 101 along the length direction of the pin body 10, wherein a plurality of second flow holes 102 communicating with the first flow hole 101 are provided in the sidewall of the pin body 10 at intervals. It should be appreciated that the first flow hole 101 is used for inputting lubricating oil, and the lubricating oil of the first flow hole 101 can flow to the outer wall of the pin body 10 through the second flow hole 102, so that the pin body 10 maintains good lubricity, thus the frequent addition of lubricating oil is not needed, and the maintenance cost is low.
Preferably, the aperture of the chucking hole 100 is larger than the aperture of the first flow hole 101.
The first sealing cover 11 is cylindrical, wherein one end of the first sealing cover 11 is detachably arranged in the clamping hole 100 and is used for sealing the clamping hole 100.
Preferably, the other end of the first sealing cover 11 is provided with a first external thread in threaded connection with the first internal thread, so that the first sealing cover 11 is detachably connected with the clamping hole 101 of the shaft pin body 10 in a threaded manner.
It should be understood that, under normal circumstances, the pin body 10 is inserted into the base, and only when the pin body 10 needs to be disassembled, the pin body 10 needs to be disassembled from the base, so that under correct conditions (i.e. when the pin body 10 is clamped in the base), the clamping hole 100 can be sealed by the first sealing cover 11, on one hand, the clamping hole 100 can be not influenced by external environment, and also the clamping hole 100 can be kept with lubricating oil, so that the whole pin body 10 keeps better lubricity, and only when the pin body 10 needs to be disassembled, the first sealing cover 11 is pulled out from the clamping hole 100, and then a disassembling tool is clamped in the clamping hole 100 to pull out the pin body 10.
Preferably, the first sealing cover 11 is provided with a third communication hole 111 along its length direction, wherein the third communication hole 111 communicates with the chucking hole 100 such that lubricating oil can still be inputted into the chucking hole 100 through the third communication hole 111 when the first sealing cover 11 seals the chucking hole 100.
Further, the length of the first sealing cover 11 is smaller than the depth of the clamping hole 100, so that when the first sealing cover 11 is disposed in the clamping hole 100, there is still a residual space in the clamping hole 100 for storing lubricating oil.
In this embodiment, a plurality of blind holes 112 are disposed at intervals at the other end of the first sealing cover 11 away from the clamping hole 100. It should be appreciated that the plurality of blind holes 112 are provided to facilitate insertion of the clamping tool to clamp the blind holes 112, thereby enabling the first sealing cover 11 to be quickly removed from the clamping hole 100.
The second sealing cover 12 has a cylindrical shape, wherein one end of the second sealing cover 12 is detachably provided in the third communication hole 111 for sealing the third communication hole 111. It should be understood that the second sealing cover 12 is for sealing the third communication hole 111, so that the second sealing cover 12 can be detached from the third communication hole 111 when the addition of the lubricating oil is required, the lubricating oil is injected through the third communication hole 111, and then the third communication hole 111 is sealed by the second sealing cover 12.
In the present embodiment, the sidewall of the pin body 10 is provided with a first groove 103 along the length direction of the pin body 10, wherein one end of the second flow hole 102 is located in the first groove 103, so that lubricating oil can be stored through the first groove 103.
Further, the second groove 104 is provided at one end of the pin body 10, so that after the pin body 10 is pulled out for a certain length, the second groove 104 can be clamped by other tools, thereby accelerating the pulling-out speed.
It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A marine cylinder pin structure, comprising:
the shaft pin body is in a strip cylinder shape, one end of the shaft pin body is provided with a clamping hole which is detachably connected with a disassembling tool along the length direction of the shaft pin body, the bottom wall of the clamping hole of the shaft pin body is provided with a first flow hole along the length direction of the shaft pin body, and the side wall of the shaft pin body is provided with a plurality of second flow holes communicated with the first flow holes at intervals;
the first sealing cover is cylindrical, one end of the first sealing cover is detachably arranged in the clamping hole and is used for sealing the clamping hole, and a third flow hole is formed in the first sealing cover along the length direction of the first sealing cover;
a second sealing cover which is cylindrical and one end of which is detachably arranged in the third flow hole and is used for sealing the third flow hole;
wherein, the aperture of the clamping hole is larger than the aperture of the first flow hole.
2. The marine cylinder pin structure according to claim 1, wherein a side wall of the pin body is provided with a first groove along a length direction of the pin body, and one end of the second flow hole is located in the first groove.
3. The marine cylinder pin structure of claim 2, wherein one end of the pin body is provided with a second groove.
4. The marine cylinder pin structure of claim 3, wherein a plurality of blind holes are formed in the other end of the first sealing cover away from the clamping hole at intervals.
5. The marine hydraulic cylinder shaft pin structure according to claim 4, wherein the dismounting tool is a screw rod, a first internal thread in threaded connection with the screw rod is arranged on the inner wall of the clamping hole of the shaft pin body, and a first external thread in threaded connection with the first internal thread is arranged on the other end of the first sealing cover.
6. The marine cylinder pin structure according to claim 5, wherein the inner wall of the third flow hole of the first sealing cap is provided with a second internal thread, and one end of the second sealing cap is provided with a second external thread screwed with the second internal thread.
7. The marine cylinder pin structure of claim 6, wherein the length of the first seal cap is less than the depth of the snap-in hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321054824.8U CN219953938U (en) | 2023-05-06 | 2023-05-06 | Marine hydraulic cylinder shaft pin structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321054824.8U CN219953938U (en) | 2023-05-06 | 2023-05-06 | Marine hydraulic cylinder shaft pin structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219953938U true CN219953938U (en) | 2023-11-03 |
Family
ID=88534924
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321054824.8U Active CN219953938U (en) | 2023-05-06 | 2023-05-06 | Marine hydraulic cylinder shaft pin structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219953938U (en) |
-
2023
- 2023-05-06 CN CN202321054824.8U patent/CN219953938U/en active Active
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