CN110539272B - Soft seal removal end effector for limited space - Google Patents
Soft seal removal end effector for limited space Download PDFInfo
- Publication number
- CN110539272B CN110539272B CN201910675397.7A CN201910675397A CN110539272B CN 110539272 B CN110539272 B CN 110539272B CN 201910675397 A CN201910675397 A CN 201910675397A CN 110539272 B CN110539272 B CN 110539272B
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- sealing ring
- disassembly
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- sealing
- pliers
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- 239000012636 effector Substances 0.000 title claims description 9
- 238000007789 sealing Methods 0.000 claims abstract description 109
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 4
- 238000001125 extrusion Methods 0.000 claims description 20
- 210000003323 beak Anatomy 0.000 claims description 8
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims 1
- 230000006378 damage Effects 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract 1
- 230000000694 effects Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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Classifications
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- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention provides a soft sealing ring dismounting tail end actuating mechanism suitable for a limited space, which aims to solve the problem that a small sealing ring in the limited space is difficult to dismount and replace by manual operation. The sleeve dismounting tail end actuating mechanism can be used for conveniently dismounting a small soft sealing ring in a narrow space without dismounting an assembled component. Under the condition that the sealing ring is damaged, the set of tool avoids the damage of the sealing performance and other adverse effects possibly caused to the whole structure in the dismounting process, provides convenient conditions for the replacement of the easily damaged sealing ring, saves the time cost and improves the reliability of the whole structure.
Description
Technical Field
The invention relates to a soft sealing ring dismounting tail end actuating mechanism suitable for a limited space.
Background
The sealing ring-sealing groove is an essential structure of the solid rocket engine and is present in almost all component assembly structures needing sealing. The small sealing ring is high in mounting and dismounting difficulty, particularly when a delay igniter-fire tube of a small-diameter solid rocket engine is mounted, the sealing ring is easy to damage, and the small sealing ring needs to be dismounted and remounted under the condition. When the igniter is in a limited space, the sealing ring is difficult to detach and replace by adopting a visual-manual operation method.
Disclosure of Invention
The invention aims to provide a soft sealing ring dismounting tail end actuating mechanism suitable for a limited space.
In order to solve the above problems, the present invention provides an actuator for detaching an end of a soft seal ring, which is suitable for a limited space, comprising: comprises a sealing ring extruding pliers, a left disassembling hook and a right disassembling hook, wherein,
the front end of the sealing ring extrusion pliers is of a round sleeve structure with a notch, the inner contour of the sealing ring extrusion pliers is a semi-kidney-shaped groove matched with the sealing piston rod, the rear end of the sealing ring extrusion pliers is connected with the front end of the sealing ring extrusion pliers, and the rear end of the sealing ring extrusion pliers is of a positioning structure with a side cutting plane;
the left and right disassembly hook is of a left-right axial symmetry structure, the front ends of the left and right disassembly hooks are respectively provided with a slender structure of a barb, the barb is used for self-tapping to enter the bottom diameter of a to-be-disassembled sealing ring which is arranged on the outer wall of the sealing piston rod in a sleeved mode and is occluded to the to-be-disassembled sealing ring, the left and right disassembly hooks are handheld handles, the front ends of the left and right disassembly hooks are connected, and the left and right disassembly hooks are handheld handles which are of positioning structures respectively.
Further, in the soft seal ring dismounting end executing mechanism applicable to the limited space, the total length of the circular sleeve structure is less than or equal to the outer circle of the seal piston rod.
Further, in the soft seal ring dismounting end actuator suitable for the limited space, the positioning structure with the side cutting plane at the rear end of the seal ring extruding pliers comprises a cylindrical handle or a threaded positioning structure connected with a manipulator.
Further, in the soft sealing ring dismounting tail end actuating mechanism applicable to the limited space, the side cutting plane is flush with the notch plane of the circular sleeve structure.
Furthermore, in the soft sealing ring dismounting tail end executing mechanism suitable for the limited space, the side cutting plane is provided with a guide groove, and the handheld handle and the long and thin structure of the left and right dismounting hooks are respectively provided with a rectangular guide beak matched with the guide groove of the sealing ring extruding pliers.
Further, in the soft seal ring dismounting end actuator suitable for the limited space, the thickness of the rectangular guide beak is 1/2 of the width of the guide groove, and the height is less than or equal to the depth of the guide groove.
Further, in the soft sealing ring dismounting end actuator suitable for the limited space, the size of the barb changes along with the size of the sealing ring.
Furthermore, in the soft sealing ring disassembling end actuating mechanism applicable to the limited space, the positioning structures of the hand-held handles of the left disassembling hook and the right disassembling hook are flat rectangular bodies or threaded positioning structures connected with the manipulator.
Compared with the prior art, the sealing ring extrusion pliers, the left disassembly hook and the right disassembly hook are adopted, so that the situation that other parts which are installed in place possibly deviate due to the disassembly assembly for replacing the sealing ring because the sealing ring is damaged in a limited space is avoided, and the overall reliability of the engine is reduced. The tool set is simple and easy to operate, and time cost and labor cost of product production are reduced.
Drawings
FIG. 1 is a schematic diagram of a seal ring in a confined space according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a sealing ring extruding pliers according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a left hook according to an embodiment of the present invention;
FIG. 4 is a schematic view of a sealing ring extruding pliers according to an embodiment of the present invention;
fig. 5 is a schematic view of the working states of the left and right detaching hooks according to an embodiment of the present invention.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
As shown in FIGS. 1 to 4, the present invention provides an actuator for detaching a tail end of a soft seal ring suitable for a limited space, comprising a seal ring extruding pliers, a left detaching hook and a right detaching hook, wherein,
as shown in fig. 2, the front end of the sealing ring extrusion pliers is a circular sleeve structure 31 with a notch, the inner contour of the sealing ring extrusion pliers is a semi-kidney-shaped groove fitted with the sealing piston rod 1, the total length of the circular sleeve structure 31 is less than or equal to the outer circle of the sealing piston rod 1, the rear end of the sealing ring extrusion pliers is connected with the front end of the sealing ring extrusion pliers, the rear end of the sealing ring extrusion pliers is a positioning structure 32 connected with a manipulator such as a cylindrical handle or a thread with a side cutting plane, the side cutting plane is flush with the notch plane of the circular sleeve structure, the side cutting plane is provided with a guide groove 33, and the size can meet the requirement of the length of the inner space and is convenient to stretch into the sealing ring extrusion pliers;
as shown in fig. 3, the front ends of the left and right detaching hooks are respectively provided with a slender structure 41 with barbs, and have the functions of self-tapping into the bottom diameter of the sealing ring 2 to be detached sleeved in the groove on the outer wall of the sealing piston rod 1 and reliably 'biting' the sealing ring to be detached, the size of the barbs can be changed along with the size of the sealing ring, the handheld handles 42 of the left and right detaching hooks are connected with the front ends of the left and right detaching hooks, the handheld handles of the left and right detaching hooks are respectively a positioning structure connected with a manipulator such as a flat rectangular body or a thread, the handheld handles 41 and the slender structures 41 of the left and right detaching hooks are respectively provided with a rectangular guide beak 43 matched with the guide groove 33 of the sealing ring extruding pliers, the thickness of the rectangular guide beak is 1/2 of the width of the guide groove, the height is less than or equal to the depth of the guide groove, and the size meets the requirement of the length of the inner, The stretching is convenient; the right disassembly hook and the left disassembly hook are in a left-right axial symmetry structure and are matched with each other for use.
Here, the end effector of the present invention has a workflow as follows:
extending the sealing ring extruding pliers into the micro space until the notch is aligned with the sealing groove, and then translating the sealing ring extruding pliers to the position where the inner contour is attached to the sealing piston rod;
after the left and right disassembly hooks extend into the micro space along the guide groove to the position where the barb parts at the front ends of the left and right disassembly hooks contact the inner hole of the sealing ring 2, the sealing ring extrusion pliers are removed, and the left and right disassembly hooks are separated and removed to drive the sealing ring to be disassembled from the groove of the sealing piston rod.
As shown in fig. 1, 4 and 5, in order to solve the problem that the small-sized sealing ring in the limited space is difficult to disassemble and replace by manual operation, the invention provides a soft sealing ring disassembling end actuating mechanism suitable for the limited space, which comprises a sealing ring extruding clamp, a left disassembling hook and a right disassembling hook. The sleeve dismounting tail end actuating mechanism can be used for conveniently dismounting the small soft sealing ring 2 in a narrow space without dismounting the mounted assembly. Under the condition that sealing washer 2 damaged, this set of frock has avoided the dismouting in-process to the impaired and other harmful effects of leakproofness that overall structure probably caused, for the change of the sealing washer that easily receives the damage provides convenient condition, has practiced thrift the time cost, has promoted overall structure reliability.
Specifically, fig. 1 is a schematic diagram of a sealing ring structure in a limited space. In the embodiment, the structure is positioned at the joint of a head fire tube-delay igniter of a certain type of small-caliber solid rocket engine. Because the missile is in a shoulder-carrying type, after ignition, the launching engine works firstly, high-temperature gas ignites the delay igniter through the fire tube, and then the medicine box is ignited. Therefore, this connection structure is required to ensure sealability. After the sealing ring is installed, in the process that the fire transfer pipe is sleeved into the joint of the delay igniter with the sealing ring, the sealing ring is damaged by shearing force possibly because the inner wall of the fire transfer pipe is excessively rubbed with the sealing ring or the sealing ring is not installed in place, so that whether the sealing ring fails or not can not be judged. After the fire transmission pipe is installed, the joint is inspected in a visual inspection mode, if the sealing ring is extruded out, the sealing ring is not installed in place, and the sealing ring needs to be taken out and installed again.
In the process of disassembling the sealing ring, a sealing ring disassembling tool is required. Firstly, as shown in fig. 4, the sealing ring extruding pliers extend into the joint of the piston rod-shaped sealing structure, are sleeved into the mounting position of the sealing ring from the upper part, force is applied to the side surface, the soft sealing ring is extruded, and the gap 11 is formed between the soft sealing ring and the gap of the sealing ring extruding pliers. At this time, as shown in fig. 5, the left hand holds the extruding pliers, the right hand takes the left and right disassembling hooks to be combined together, the guide beak extends downwards into the gap of the sealing ring along the guide groove, then the sealing ring extruding pliers are taken out, the left hand and the right hand separate the left disassembling hook and the right disassembling hook to hook the sealing ring, and the left hand and the right hand separate the disassembling hooks and take out upwards.
The seal ring dismounting tool suitable for the limited space can be used for efficiently dismounting the seal ring under the special condition, and is simple and easy to operate. The structural tool is not limited by materials, and in the embodiment, the tool set is made of 45 steel. The proposal is that the tool set is used for manufacturing a matched packing box, so that the injury of people or the failure of fracture at a sharp part can be avoided.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It will be apparent to those skilled in the art that various changes and modifications may be made in the invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. A soft sealing ring dismounting tail end actuating mechanism suitable for a limited space is characterized by comprising a sealing ring extruding pliers, a left dismounting hook and a right dismounting hook, wherein,
the front end of the sealing ring extrusion pliers is of a round sleeve structure with a notch, the inner contour of the sealing ring extrusion pliers is a semi-kidney-shaped groove matched with the sealing piston rod, the rear end of the sealing ring extrusion pliers is connected with the front end of the sealing ring extrusion pliers, and the rear end of the sealing ring extrusion pliers is of a positioning structure with a side cutting plane;
the left and right disassembly hooks are of a left-right axial symmetry structure, the front ends of the left and right disassembly hooks are respectively provided with a slender structure with a barb, the barb is used for self-tapping into the bottom diameter of a sealing ring to be disassembled sleeved in a groove on the outer wall of the sealing piston rod and biting the sealing ring to be disassembled, the handheld handles of the left and right disassembly hooks are connected with the front ends of the left and right disassembly hooks, and the handheld handles of the left and right disassembly hooks are respectively of a positioning structure;
in the process of disassembling the sealing ring, firstly, a sealing ring extruding clamp extends into a joint of the piston rod-shaped sealing structure, the sealing ring extruding clamp is sleeved into a mounting position of the sealing ring from the upper part, force is applied to the side surface, the soft sealing ring is extruded, and the sealing ring extruding clamp is loosened at a gap, so that a gap is formed between the sealing ring extruding clamp and the piston rod-shaped sealing structure; at the moment, the left hand holds the extrusion pliers, the right hand takes the left disassembly hook and the right disassembly hook together, the guide beak extends downwards into the gap of the sealing ring along the guide groove, then the sealing ring extrusion pliers are taken out, the left hand and the right hand separate the left disassembly hook and the right disassembly hook to hook the sealing ring, and the left hand and the right hand separate the disassembly hooks and take out upwards.
2. The soft seal removal end effector for confined spaces as claimed in claim 1 wherein the overall length of said circular sleeve structure is less than or equal to the outer circumference of said sealing piston rod.
3. The soft seal ring removing end effector for confined spaces as claimed in claim 1, wherein the positioning structure with a lateral cut-out plane at the rear end of the seal ring extruding jaw comprises a cylindrical handle or a threaded positioning structure coupled to a robot.
4. The flexible seal ring removal end effector for confined spaces as claimed in claim 1, wherein said undercut plane is flush with said circular sleeve configuration notch plane.
5. The soft seal ring removing end effector for confined spaces as claimed in claim 1, wherein said lateral cutting plane is formed with a guide groove, and said left and right removing hooks are formed with a rectangular guide beak respectively formed on the handle and the elongated structure for mating with the guide groove of said seal ring extruding jaw.
6. The soft seal ring removal end effector for confined spaces as claimed in claim 5, wherein said rectangular guide beak has a thickness of 1/2 guide groove width and a height of less than or equal to said guide groove depth.
7. The flexible seal ring removal end effector for confined spaces as claimed in claim 1, wherein the barb dimensions vary with seal ring size.
8. The soft seal ring disassembly end effector mechanism for confined spaces as claimed in claim 1, wherein the positioning structure of the handle of said left and right disassembly hooks is a rectangular parallelepiped or a threaded positioning structure coupled to a robot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675397.7A CN110539272B (en) | 2019-07-25 | 2019-07-25 | Soft seal removal end effector for limited space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910675397.7A CN110539272B (en) | 2019-07-25 | 2019-07-25 | Soft seal removal end effector for limited space |
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| Publication Number | Publication Date |
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| CN110539272A CN110539272A (en) | 2019-12-06 |
| CN110539272B true CN110539272B (en) | 2021-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910675397.7A Active CN110539272B (en) | 2019-07-25 | 2019-07-25 | Soft seal removal end effector for limited space |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3401445A (en) * | 1967-04-10 | 1968-09-17 | Robinair Mfg Corp | Grappling device |
| DE3720486C1 (en) * | 1987-06-20 | 1988-11-03 | Uni Cardan Ag | Pressure medium probe |
| DE29706747U1 (en) * | 1997-04-15 | 1997-07-03 | Gukelberger, Dieter, 75417 Mühlacker | Sealing ring assembly device |
| FR2778358B1 (en) * | 1998-05-07 | 2000-06-23 | Facom | METHOD AND TOOL FOR EXTRACTING A JOINT |
| CN201863175U (en) * | 2010-11-16 | 2011-06-15 | 湖北中烟工业有限责任公司 | Special withdrawal tool for spider oil seal of cigarette making machine set PROTOS 70 |
| CN202462338U (en) * | 2012-02-29 | 2012-10-03 | 江苏理士电池有限公司 | Sleeve seal ring mould for water type motorcycle battery fluid hole plug |
| CN205057915U (en) * | 2015-09-25 | 2016-03-02 | 浙江开创环保科技股份有限公司 | Reverse osmosis membrane extracting tool |
| CN107756315A (en) * | 2016-08-22 | 2018-03-06 | 中国石油天然气股份有限公司 | Skeleton oil seal remover |
| CN207223878U (en) * | 2017-10-11 | 2018-04-13 | 重庆通用飞机工业有限公司 | A kind of engine double-lip sealing ring extracting tool |
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