CN113199435A - Pressure vessel disassembling tool and using method thereof - Google Patents
Pressure vessel disassembling tool and using method thereof Download PDFInfo
- Publication number
- CN113199435A CN113199435A CN202110601109.0A CN202110601109A CN113199435A CN 113199435 A CN113199435 A CN 113199435A CN 202110601109 A CN202110601109 A CN 202110601109A CN 113199435 A CN113199435 A CN 113199435A
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- pressure
- vertical cylinder
- pressure container
- pressure vessel
- pressure plate
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000005381 potential energy Methods 0.000 abstract description 6
- 238000005452 bending Methods 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract description 3
- 235000017491 Bambusa tulda Nutrition 0.000 abstract description 3
- 241001330002 Bambuseae Species 0.000 abstract description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract description 3
- 239000011425 bamboo Substances 0.000 abstract description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 239000013535 sea water Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Vessels And Lids Thereof (AREA)
Abstract
The invention relates to a pressure vessel disassembling tool and a using method thereof, wherein the pressure vessel disassembling tool comprises a vertical cylinder, a pressure plate which is arranged in the vertical cylinder in an axially movable manner, a thrust screw rod of which the lower end is connected with the pressure plate and can drive the pressure plate to move up and down, and an end cover which is detachably arranged at the top of the vertical cylinder and is used for supporting the thrust screw rod; the upright tube comprises a bottom wall, and the pressure plate and the bottom wall are used for limiting the top and the bottom of the pressure container respectively. Use this assembly and disassembly tools to carry out the dismouting to spring pressure vessel, dismouting easy operation, the dismouting is efficient, and pressure vessel's dismouting all can be accomplished in founding a section of thick bamboo, and pressure vessel's the risk of spring potential energy release can obtain reliable control, still can restrict the bending deformation of spring and make its axial motion along founding a section of thick bamboo, reduces the spring greatly and takes place the crooked risk of popping out and cause the damage at the in-process of extrusion or extension.
Description
Technical Field
The invention relates to the technical field of pressure vessel disassembly and assembly, in particular to a pressure vessel disassembly and assembly tool and a using method thereof.
Background
The ROV is an underwater extreme operation robot, and can be submerged in an underwater severe dangerous environment to replace a person to complete certain operations. Currently, underwater robots have become important tools for ocean development, which can submerge to 3000 meters for underwater operation, and have many advantages, such as human operation, system modularization, and the like. The compensator (one type of pressure container) is used as an important component of the ROV, and can constantly ensure that the internal pressure of the electronic hydraulic equipment of the ROV is higher than the external water pressure in a severe underwater environment, so that seawater can be effectively prevented from invading into an ROV system, and the normal operation of the ROV is ensured.
The compensator needs to contact an internal pressure spring with seawater in design, and the pressure spring is corroded due to fatigue stress and long-term soaking in seawater and is easy to break after being used for a certain period of time, so that the pressure compensation function of the compensator fails. After the pressure spring is broken, the function of the whole compensator fails, and the compensator is sent back to a manufacturer for maintenance or is integrally replaced, so that the equipment maintenance cost is high. The compression range of the pressure spring in the compensator is large, the spring stores a large amount of energy under the condition of compression, and very large destructive force can be caused when the pressure is released. Disassembling it without suitable tools usually requires at least three operations involved and the axial movement of the spring cannot be maintained at all times during the disassembling process, with a very high risk of spring jump and of personnel and equipment damage.
Therefore, there is a need to provide a portable special tool for assembling and disassembling a spring-type pressure vessel of this type to solve the above problems.
Disclosure of Invention
The present invention is directed to a pressure vessel mounting and dismounting tool for a spring-type pressure vessel and a method for using the same.
The technical scheme adopted by the invention for solving the technical problems is as follows: constructing a pressure vessel disassembling tool, which comprises a vertical cylinder, a pressure plate arranged in the vertical cylinder in an axially movable manner, a thrust screw rod with the lower end connected with the pressure plate and capable of driving the pressure plate to move up and down, and an end cover detachably arranged at the top of the vertical cylinder and used for supporting the thrust screw rod; the upright tube comprises a bottom wall, and the pressure plate and the bottom wall are used for limiting the top and the bottom of the pressure container respectively.
In some embodiments, the disassembly tool further comprises a handle connected to an upper end of the thrust screw; the handle is perpendicular to the thrust screw.
In some embodiments, the demolition tool further comprises a thrust bearing; the thrust bearing is arranged at the lower end of the thrust screw rod and used for bearing the thrust of the thrust screw rod and transmitting the thrust to the pressure plate.
In some embodiments, the bottom wall is provided with a limiting structure for limiting the pressure container; the limiting structure comprises a clamping position which is protruded upwards from the bottom wall and used for clamping the bottom of the pressure container.
In some embodiments, the at least two screens are evenly spaced along the circumference of the pressure vessel.
In some embodiments, the stand further comprises a cylindrical sidewall extending upwardly from a periphery of the bottom wall; the cylindrical side wall is provided with a notch, and the notch extends to the upper part of the bottom wall from the top surface of the cylindrical side wall.
In some embodiments, there are two notches, and the two notches are symmetrically arranged along the circumferential direction of the vertical cylinder.
In some embodiments, the vertical cylinder and the end cover are connected through a plurality of fixing bolts.
The invention also provides a use method of the pressure vessel disassembling tool, which comprises the following steps: s1, disassembling the pressure container by using the disassembling tool;
the S1 includes:
s11, removing the end cover from the vertical cylinder, placing the pressure container into the vertical cylinder, and fixing the bottom of the pressure container on the bottom wall;
s12, installing the end cover on the vertical cylinder, rotating the thrust screw rod along a first rotating direction, and driving the pressure plate to move downwards until the pressure plate presses the upper surface of the pressure container;
s13, opening a plunger fixing pin used for locking a spring in the pressure container, rotating the thrust screw rod along a second rotating direction opposite to the first rotating direction, driving the pressure plate to move upwards until the spring pressure in the pressure container is completely released, taking the end cover down from the vertical cylinder, and taking the pressure container out of the vertical cylinder.
The invention also provides a use method of the pressure vessel disassembling tool, which comprises the following steps: s2, mounting the pressure container by using the dismounting tool;
the S2 includes:
s21, taking the end cover off the vertical cylinder, putting the components of the pressure container into the vertical cylinder according to the assembly sequence, and fixing the bottom of the pressure container on the bottom wall;
s22, assembling the end cover on the vertical cylinder, rotating the thrust screw rod along a first rotating direction to drive the pressure plate to move downwards, so that the pressure plate compresses the spring of the pressure container until the plunger of the pressure container is aligned with the fixing pin mounting hole of the bottom shell of the pressure container;
and S23, installing the plunger fixing pin into the pressure container, locking the spring, taking the end cover off the vertical cylinder, and taking the pressure container out of the vertical cylinder.
The implementation of the invention has at least the following beneficial effects: the pressure container dismounting tool is simple to operate, dismounting efficiency of the pressure container can be greatly improved, dismounting of the pressure container is completed in the vertical cylinder, the risk of releasing potential energy of the spring of the pressure container can be reliably controlled, bending deformation of the spring can be limited to enable the spring to move along the axial direction of the vertical cylinder, and the risk of damage caused by bending ejection of the spring in the extrusion or extension process is greatly reduced.
Drawings
The invention will be further described with reference to the accompanying drawings and examples, in which:
FIG. 1 is a schematic perspective view of a pressure vessel removal tool according to some embodiments of the present disclosure;
FIG. 2 is an exploded view of the pressure vessel removal tool of FIG. 1;
FIG. 3 is a schematic cross-sectional view of the pressure vessel removal tool of FIG. 1;
fig. 4 is an enlarged schematic view of a structure at a in fig. 3.
Detailed Description
For a more clear understanding of the technical features, objects and effects of the present invention, embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1 to 4, the pressure vessel disassembling tool 1 according to some embodiments of the present invention may include a vertical cylinder 11, a pressure plate 14 disposed in the vertical cylinder 11 to be movable up and down, a driving assembly 13 connected to the pressure plate 14 and driving the pressure plate 14 to move up and down, and an end cap 12 disposed on the top of the vertical cylinder 11. The vertical cylinder 11, the end cap 12, and the platen 14 may be made of metal or metal alloy, such as stainless steel, aluminum alloy, cast iron, etc. The dismounting tool 1 can be applied to dismounting spring type pressure vessels, such as compensators for system liquid compensation in underwater hydraulic systems.
The vertical cylinder 11 may be cylindrical, and may include a disk-shaped bottom wall 112 for limiting the bottom of the pressure vessel and a cylindrical side wall 111 extending upward from the periphery of the bottom wall 112. The bottom wall 112 may be provided with a limiting structure for limiting the displacement of the bottom end of the pressure vessel shell. In some embodiments, the retention structure may include a detent 113 projecting upwardly from the bottom wall 112. In this embodiment, the two detents 113 are two, and the two detents 113 are respectively engaged with two opposite sides of the bottom end of the pressure vessel shell. In other embodiments, there may be a plurality of detents 113, the detents 113 may be evenly spaced along the circumference, and the bottom end of the casing of the pressure vessel may be inserted into the detents 113 for fixation. The cylindrical side wall 111 may form a protective structure around the pressure vessel to prevent damage from spring bounce out of the pressure vessel, and the cylindrical side wall 111 may limit the spring from bending and deforming such that it moves axially. The cylindrical side wall 111 can be further provided with a notch 110 which can be used for observing the state of the pressure container and is convenient for personnel to operate the plunger fixing pin in the pressure container. In the present embodiment, there are two notches 110, and the two notches 110 are symmetrically arranged in the circumferential direction. In some embodiments, the slot 110 may extend from the top of the cylindrical sidewall 111 down to the upper end face of the bottom wall 112. The side wall 111, the bottom wall 112 and the locking portion 113 may be integrally formed, or may be separately formed and then assembled together by welding.
The platen 14 is provided in the cylindrical side wall 111 so as to be movable up and down in the axial direction. A receiving space 140 may be formed between the platen 14 and the bottom wall 112 for receiving a pressure vessel. The platen 14 and bottom wall 112 limit the position of the top and bottom of the pressure vessel, respectively. The pressure plate 14 can press the upper surface of the pressure container and is used for fixing the upper end of the spring of the pressure container, so that the spring does not move along with the change of the potential energy of the spring. Platen 14 may include a disk-shaped platen 141 and an annular socket 142 extending downwardly from the periphery of platen 141 in some embodiments. The engaging portion 142 is engaged with the upper end of the pressure vessel, and the pressing plate 141 is used for pressing the upper end surface of the pressure vessel.
The drive assembly 13 may, in some embodiments, include a thrust screw 132 and a handle 131 disposed on top of the thrust screw 132. The thrust screw 132 is vertically disposed, and its central axis may coincide with the central axis of the vertical tube 11. The lower end of the thrust screw 132 passes through the end cover 12 and extends into the vertical cylinder 11 to be connected with the pressure plate 14, and the thrust screw 132 can transmit the input external force to the spring of the pressure vessel to control the potential energy of the spring and adjust the length of the spring. The handle 131 is horizontally disposed such that the handle 131 and the thrust screw 132 are integrally T-shaped. Handle 131 drives thrust screw 132 through twist grip 131 and rotates the mode that increases moment through application lever principle, reduces the external force that uses when being used for the extrusion and extending pressure vessel spring, improves dismouting efficiency. The thrust screw 132 and the handle 131 may be made of metal or metal alloy, such as stainless steel, aluminum alloy, and cast iron. The thrust screw 132 and the handle 131 may be integrally formed, or may be separately formed and then assembled together by welding or the like. It is understood that in other embodiments, the driving assembly 13 may drive the platen 14 to move up and down by a motor, hydraulic pressure, pneumatic pressure, etc.
In some embodiments, drive assembly 13 may also include a flange sleeve 133 and a thrust bearing 134. The flange sleeve 133 may be fixedly mounted on the upper end surface of the pressure plate 14 by a plurality of bolts, and the lower end of the thrust screw 132 is inserted into the flange 133. The thrust bearing 134 is used for bearing the thrust of the thrust screw 132 and transmitting the thrust to the pressure plate 14, and may be disposed in the flange sleeve 133 and sleeved outside the lower end of the thrust screw 132. Since the casing of the pressure vessel is usually made of plastic, the thrust screw 132 is connected to the pressure plate 14 via the thrust bearing 134, so that the casing of the pressure vessel can be prevented from being damaged by uneven external force due to rotation of the thrust screw 132 during the assembling and disassembling process. A plurality of washers 135 may be disposed between the upper end surface of the thrust bearing 134 and the flange sleeve 133 and between the lower end surface of the thrust bearing 134 and the pressure plate 14.
The end cap 12 is detachably disposed on the top of the vertical tube 11 and supports the thrust screw 132. The end cap 12 may include a cover 121 and a flange 122 in some embodiments. The lid 121 is detachably provided to cover the top opening of the cylindrical side wall 111. In some embodiments, the cover 121 and the cylindrical sidewall 111 may be fixed therebetween by a number of fixing bolts 15. The cylindrical side wall 111 and the lid 121 are respectively provided with a first mounting hole 1110 and a second mounting hole 1210 through which the fixing bolt 15 is inserted. In this embodiment, there are two first mounting holes 1110 and two second mounting holes 1210, which are symmetrically disposed on two circumferential sides of the vertical tube 11. The flange 122 is inserted into the top of the cover 121 and is fixed to the cover 121 by a plurality of bolts. The inner wall surface of the flange 122 is provided with an internal thread that is screw-fitted to the thrust screw 132.
The invention also provides a use method of the pressure vessel disassembling tool 1, which comprises the following steps:
and S1, detaching the pressure container by using the detaching tool 1.
Specifically, step S1 may include:
s11, removing the end cover 12 from the vertical cylinder 11, placing the pressure container into the vertical cylinder 11, and embedding the bottom of the shell of the pressure container into the clamping position 113 for fixing;
s12, installing the end cover 12 on the vertical cylinder 11 and ensuring that the fixing bolt 15 is tightened, rotating the handle 131 in a first rotating direction (for example, clockwise direction) to drive the thrust screw 132 to rotate, and driving the pressure plate 14 at the lower part of the thrust screw 132 to move downwards until the pressure plate 14 presses the upper surface of the pressure container;
s13, the plunger fixing pin for locking the spring inside the pressure vessel is opened, the handle 131 is slowly rotated in a second rotation direction (for example, counterclockwise direction) opposite to the first rotation direction to drive the thrust screw 132 to rotate, the pressure plate 14 is driven to move upward until the spring pressure in the pressure vessel is completely released, the end cap 12 is removed from the vertical tube 11, the pressure vessel is taken out from the vertical tube 11, and the pressure vessel is removed.
And S2, mounting the pressure container by using the dismounting tool 1.
Specifically, step S2 may include:
s21, taking the end cover 12 off the vertical cylinder 11, placing the components of the pressure container into the vertical cylinder 11 according to the correct assembly sequence of the components of the pressure container, and ensuring that the bottom shell of the pressure container is embedded into the clamping position 113;
s22, installing the end cover 12 on the vertical cylinder 11 and ensuring that the fixing bolt 15 is tightened, rotating the handle 131 in a first rotating direction (for example, clockwise direction) to drive the thrust screw 132 to rotate, driving the pressure plate 14 at the lower part of the thrust screw 132 to move downwards, and enabling the pressure plate 14 to slowly compress the spring of the pressure container until the plunger of the pressure container is aligned with the fixing pin installation hole of the bottom shell of the pressure container;
s23, the plunger fixing pin is fitted into the pressure vessel, the spring is locked, the end cap 12 is removed from the vertical tube 11, and the pressure vessel is taken out from the vertical tube 11 and the top end cap of the pressure vessel is attached.
The pressure container dismounting tool 1 is simple to operate, only one person can use the lever principle to increase the thrust of the moment to complete the compression and extension of the spring and even the whole dismounting process in the step of dismounting the pressure container, the purpose of efficiently dismounting and maintaining the pressure container is achieved, and the production cost is reduced. And the pressure vessel's dismouting is all accomplished in founding a section of thick bamboo 11, and the risk that spring potential energy released has obtained reliable control, has avoidd the spring and has taken place crooked the popping out and lead to the potential energy to release suddenly and thereby cause the risk of damage in extrusion or the extension in-process to greatly reduced the risk in the operation process.
It is to be understood that the above-described respective technical features may be used in any combination without limitation.
The above examples only express the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention; it should be noted that, for those skilled in the art, the above technical features can be freely combined, and several changes and modifications can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention; therefore, all equivalent changes and modifications made within the scope of the claims of the present invention should be covered by the claims of the present invention.
Claims (10)
1. The pressure vessel disassembling tool is characterized by comprising a vertical cylinder (11), a pressure plate (14) which is axially movably arranged in the vertical cylinder (11), a thrust screw (132) of which the lower end is connected with the pressure plate (14) and can drive the pressure plate (14) to move up and down, and an end cover (12) which is detachably arranged at the top of the vertical cylinder (11) and is used for supporting the thrust screw (132); the upright cylinder (11) comprises a bottom wall (111), and the pressure plate (14) and the bottom wall (111) are respectively used for limiting the top and the bottom of the pressure vessel.
2. The disassembly and assembly tool of claim 1, further comprising a handle (131) connected to an upper end of the thrust screw (132); the handle (131) is perpendicular to the thrust screw (132).
3. The disassembly and assembly tool of claim 1, further comprising a thrust bearing (134); the thrust bearing (134) is arranged at the lower end of the thrust screw rod (132) and is used for bearing the thrust of the thrust screw rod (132) and transmitting the thrust to the pressure plate (14).
4. The disassembly and assembly tool of claim 1, wherein the bottom wall (111) is provided with a limiting structure for limiting the pressure vessel; the limiting structure comprises a clamping position (113) which protrudes upwards from the bottom wall (111) and is used for clamping the bottom of the pressure container.
5. A disassembly and assembly tool according to claim 4, wherein there are at least two said detents (113), and at least two said detents (113) are evenly spaced along the circumference of the pressure vessel.
6. The disassembly and assembly tool of claim 1, wherein the stand (11) further comprises a cylindrical side wall (111) extending upward from a periphery of the bottom wall (111); be equipped with notch (110) on tube-shape lateral wall (111), notch (110) by the top surface of tube-shape lateral wall (111) extends to the top of diapire (111).
7. A disassembly and assembly tool according to claim 6, wherein there are two notches (110), and two notches (110) are symmetrically arranged along the circumference of the vertical cylinder (11).
8. The disassembly and assembly tool of claim 1, wherein the vertical cylinder (11) and the end cover (12) are connected through a plurality of fixing bolts (15).
9. A method of using the pressure vessel dismantling tool as claimed in any one of claims 1 to 8, comprising: s1, disassembling the pressure container by using the disassembling tool;
the S1 includes:
s11, removing the end cover (12) from the vertical cylinder (11), putting the pressure container into the vertical cylinder (11), and fixing the bottom of the pressure container on the bottom wall (111);
s12, installing the end cover (12) on the vertical cylinder (11), rotating the thrust screw (132) along a first rotating direction, and driving the pressure plate (14) to move downwards until the pressure plate (14) presses the upper surface of the pressure container;
s13, opening a plunger fixing pin used for locking a spring in the pressure container, rotating the thrust screw (132) along a second rotating direction opposite to the first rotating direction, driving the pressure plate (14) to move upwards until the spring pressure in the pressure container is completely released, taking the end cover (12) down from the vertical cylinder (11), and taking the pressure container out from the vertical cylinder (11).
10. A method of using the pressure vessel dismantling tool as claimed in any one of claims 1 to 8, comprising: s2, mounting the pressure container by using the dismounting tool;
the S2 includes:
s21, removing the end cover (12) from the vertical cylinder (11), putting the components of the pressure container into the vertical cylinder (11) according to the assembly sequence, and fixing the bottom of the pressure container on the bottom wall (111);
s22, installing the end cover (12) on the vertical cylinder (11), rotating the thrust screw (132) along a first rotating direction, driving the pressure plate (14) to move downwards, and enabling the pressure plate (14) to compress the spring of the pressure container until the plunger of the pressure container is aligned with the fixing pin mounting hole of the bottom shell of the pressure container;
s23, installing the plunger fixing pin into the pressure container, locking the spring, removing the end cover (12) from the vertical cylinder (11), and taking the pressure container out of the vertical cylinder (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110601109.0A CN113199435A (en) | 2021-05-31 | 2021-05-31 | Pressure vessel disassembling tool and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110601109.0A CN113199435A (en) | 2021-05-31 | 2021-05-31 | Pressure vessel disassembling tool and using method thereof |
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| Publication Number | Publication Date |
|---|---|
| CN113199435A true CN113199435A (en) | 2021-08-03 |
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ID=77023704
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110601109.0A Pending CN113199435A (en) | 2021-05-31 | 2021-05-31 | Pressure vessel disassembling tool and using method thereof |
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| Country | Link |
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| CN (1) | CN113199435A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116141266A (en) * | 2023-04-23 | 2023-05-23 | 东方空间技术(山东)有限公司 | Spring compression tool for rocket installation and parameter determination method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR7501227U (en) * | 1995-07-18 | 1997-11-18 | Fernando Polino | Hardware arrangement for disassembling the spring / damper assembly |
| CN203752094U (en) * | 2014-03-30 | 2014-08-06 | 河北省电力建设调整试验所 | Spring change appliance |
| CN204546452U (en) * | 2015-03-02 | 2015-08-12 | 广西防城港核电有限公司 | Air lock door spring regulating device |
| CN214870205U (en) * | 2021-05-31 | 2021-11-26 | 深圳海油工程水下技术有限公司 | Pressure vessel disassembling tool |
-
2021
- 2021-05-31 CN CN202110601109.0A patent/CN113199435A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BR7501227U (en) * | 1995-07-18 | 1997-11-18 | Fernando Polino | Hardware arrangement for disassembling the spring / damper assembly |
| CN203752094U (en) * | 2014-03-30 | 2014-08-06 | 河北省电力建设调整试验所 | Spring change appliance |
| CN204546452U (en) * | 2015-03-02 | 2015-08-12 | 广西防城港核电有限公司 | Air lock door spring regulating device |
| CN214870205U (en) * | 2021-05-31 | 2021-11-26 | 深圳海油工程水下技术有限公司 | Pressure vessel disassembling tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116141266A (en) * | 2023-04-23 | 2023-05-23 | 东方空间技术(山东)有限公司 | Spring compression tool for rocket installation and parameter determination method thereof |
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