CN204123068U - A kind of extracting tool of interference engagement bolt - Google Patents
A kind of extracting tool of interference engagement bolt Download PDFInfo
- Publication number
- CN204123068U CN204123068U CN201420588160.8U CN201420588160U CN204123068U CN 204123068 U CN204123068 U CN 204123068U CN 201420588160 U CN201420588160 U CN 201420588160U CN 204123068 U CN204123068 U CN 204123068U
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- bolt
- clip
- screw rod
- sleeve bearing
- stretching screw
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Abstract
The utility model provides a kind of interference engagement bolt disassembling tool, it is characterized in that, comprise stretching screw rod [1], rotating nut [2], sleeve bearing [3] and bolt clip [4], the lower end of stretching screw rod [1] penetrates in sleeve bearing [3], be connected with the upper end of the bolt clip [4] in sleeve bearing [3], the lower end of bolt clip [4] is provided with bolt bare terminal end, rotating nut [2] is provided with in the outside top of sleeve bearing [3], bolt card hoop [4] is driven to move upward by the cooperation of stretching screw rod [1] and rotating nut [2].
Description
Technical field
The invention belongs to aviation field, relating to one can in limited operation space, and the low damage of high efficiency, security are high, and the instrument of portable dismounting interference engagement bolt.
Background technology
Bolt is made up of bolt head and screw rod, and screw rod is divided into smooth areas and threaded area.Interference engagement bolt, i.e. interference fit bolt, refer to that the size of bolt hole deducts shank of bolt smooth areas with matching size, cooperation when its difference is negative in the coordinating of bolt hole and screw rod smooth areas.The tolerance range of bolt hole is under the tolerance range of screw rod.What the installation of interference-fitted fastener generally adopted hydraulic pressure press-in or riveting gun hammer driven at present forces mounting means.
Because interference engagement bolt has the advantage that can ensure bolt group stand under load uniformity when posting, when aeronautic structure connects, often adopt interference engagement bolt.But owing to producing in the work progress such as installation, may there is the situation that needs are changed in bolt.If do not have specific extracting tool, the dismantlement work of interference engagement bolt can be cumbersome.Inappropriate dismounting mode often destroys hole wall, causes damage, bury potential safety hazard to structure.On the other hand, some bolt is installed on the less region of construction space, because the withdrawal space is limited, further increases the difficulty of Bolt dismantling.How safely, efficiently, dismounting interference engagement bolt is a problem in aircraft work progress easily.
Summary of the invention
Task of the present utility model and object are that design is a kind of little to structural damage, efficient, safe, portable, and take into full account that the specific purpose tool of bolt is interfered in the dismounting of limited construction space.
In order to reach foregoing invention object, the technical solution of the utility model is achieved in that and the invention provides a kind of interference engagement bolt disassembling tool, comprise stretching screw rod [1], rotating nut [2], sleeve bearing [3] and bolt clip [4], the lower end of stretching screw rod [1] penetrates in sleeve bearing [3], be connected with the upper end of the bolt clip [4] in sleeve bearing [3], the lower end of bolt clip [4] is provided with bolt bare terminal end, rotating nut [2] is provided with in the outside top of sleeve bearing [3], bolt card hoop [4] is driven to move upward by the cooperation of stretching screw rod [1] and rotating nut [2].Sleeve bearing [3] not only limits the axial displacement of rotating nut [2], ensure that the axially-movable of bolt clip [4] along stretching screw rod [1] simultaneously, ensures to interfere relative motion between bolt and body construction, for whole mechanism provides support.The bolt bare terminal end of bolt clip [4], while ensureing that it has sufficient intensity, should reduce its thickness as far as possible.The length of sleeve bearing [3] and stretching screw rod [1] can adjust according to actual needs.
Bolt clip [4] is made up of two semicircle clips, is respectively the first clip [4-1] and the second clip [4-2], and the first clip [4-1] and the second clip [4-2] are hung on the bolt head of stretching screw rod [1] bottom.Bolt clip [4] is divided into two parts, is conducive to the assembling assembling of the manufacturing and extracting tool.
The internal diameter of sleeve bearing [3], slightly larger than the external diameter of bolt clip [4], prevents bolt clip [4] from dropping from stretching screw rod [1] bottom.The Circularhole diameter of sleeve bearing [3] upper end, slightly larger than the diameter of stretching screw rod [1], does not produce between the two and interferes and friction.In work progress, suitably can increase rotary torsion arm and make with lubricator to reduce difficulty of construction.
The beneficial effects of the utility model are: structure is simple, and be easy to produce, cost is low, is easy to carry, and the construction space of needs is less, easy to operate, easy left-hand seat, little to the damage of body construction especially hole wall.
Accompanying drawing explanation
Below in conjunction with drawings and Examples to the further detailed description of the utility model.In order to be illustrated more clearly in the technical scheme in the utility model embodiment technology, be briefly described to the accompanying drawing used required in the description of embodiment technology below, apparently, the accompanying drawing (except prior art figure) that the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, in the following detailed description, above-mentioned purpose of the present utility model, feature and advantage are by apparent; And under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the assembling schematic diagram of the extracting tool of the utility model interference engagement bolt;
Fig. 2 is stretching screw-rod structure schematic diagram;
Fig. 3 is stretching screw-rod structure cross-sectional schematic;
Fig. 4 is sleeve bearing structural representation;
Fig. 5 is sleeve bearing sectional structure schematic diagram;
Fig. 6 is bolt card cuff structure schematic diagram;
Fig. 7 is bolt card cuff structure cross-sectional schematic.
Numeral and the corresponding component title represented by letter in figure:
1 stretching screw rod
2 rotating nuts
3 sleeve bearings
4 bolt clips
Detailed description of the invention
Below, preferred embodiment of the present utility model is described in detail with reference to accompanying drawing.It should be noted that before this, the term used in this specification and claims book or word can not limited interpretation be implication in common implication or dictionary, and should based in order to illustrate that principle that its practical hair person of good sense can carry out suitably definition to the concept of term is interpreted as meeting implication and the concept of the utility model technological thought in the best way.Thereupon, the structure represented in embodiment described in this description and accompanying drawing is one of the utility model most preferred embodiment, technological thought of the present utility model can not be represented completely, therefore should be understood that the various equivalent and variation that may to exist for the utility model and can carry out replacing.
The invention provides a kind of interference engagement bolt disassembling tool, comprise stretching screw rod 1, rotating nut 2, sleeve bearing 3 and bolt clip 4, the lower end of stretching screw rod 1 penetrates in sleeve bearing 3, is connected with the upper end of the bolt clip 4 in sleeve bearing 3, and the lower end of bolt clip 4 is provided with bolt bare terminal end, above sleeve bearing 3 outside, be provided with rotating nut 2, drive bolt card hoop 4 to move upward by the cooperation of stretching screw rod 1 and rotating nut 2.Sleeve bearing 3 not only limits the axial displacement of rotating nut 2, ensure that the axially-movable of bolt clip 4 along stretching screw rod 1 simultaneously, ensures to interfere relative motion between bolt and body construction, for whole mechanism provides support.The bolt bare terminal end of bolt clip 4, while ensureing that it has sufficient intensity, should reduce its thickness as far as possible.The length of sleeve bearing 3 and stretching screw rod 1 can adjust according to actual needs.
Bolt clip 4 is made up of two semicircle clips, is respectively the first clip 4-1 and the second clip 4-2, and the first clip 4-1 and the second clip 4-2 is hung on the bolt head of stretching screw rod 1 bottom.Bolt clip 4 is divided into two parts, is conducive to the assembling assembling of the manufacturing and extracting tool.
The internal diameter of sleeve bearing 3, slightly larger than the external diameter of bolt clip 4, prevents bolt clip 4 from dropping from stretching screw rod 1 bottom.The Circularhole diameter of sleeve bearing 3 upper end, slightly larger than the diameter of stretching screw rod 1, does not produce between the two and interferes and friction.In work progress, suitably can increase rotary torsion arm and make with lubricator to reduce difficulty of construction.
(1) during demounting bolt, by knocking the end of thread being disassembled bolt gently, make to produce certain interval between bolt head and structural member, gap should meet and the bolt of bolt clip clamping end plug can be entered as well.
(2) bolt of bolt clip clamping end plug is entered the gap between bolt head and structural member, and ensure that the bolt head being disassembled bolt is positioned at its center as far as possible;
(3) tightening rotating nut by applying moment of torsion, making its compression sleeve bearing.Because sleeve bearing limits the axial displacement of rotating nut, so will produce move upward relative with sleeve bearing with the stretching screw rod that rotating nut coordinates.
(4) stretching screw rod stretches to hold with the screw rod of bolt clip and is connected, thus drives bolt clip upwards to pull bolt, and bolt " pulls out " from bolt hole the most at last.
It should be noted that, although above-mentioned explanation illustrate and describes some preferred embodiments of the present utility model, but as previously mentioned, be to be understood that the utility model is not limited to the form disclosed by this paper, should not regard the eliminating to other embodiments as, and can be used for other combinations various, amendment and environment, and and can in utility model contemplated scope described herein, changed by the technology of above-mentioned instruction or association area or knowledge.And the change that those skilled in the art carry out and change do not depart from spirit and scope of the present utility model, then all should in the protection domain of the utility model claims.
Claims (3)
1. an interference engagement bolt disassembling tool, it is characterized in that, comprise stretching screw rod [1], rotating nut [2], sleeve bearing [3] and bolt clip [4], the lower end of stretching screw rod [1] penetrates in sleeve bearing [3], be connected with the upper end of the bolt clip [4] in sleeve bearing [3], the lower end of bolt clip [4] is provided with bolt bare terminal end, rotating nut [2] is provided with in the outside top of sleeve bearing [3], bolt card hoop [4] is driven to move upward by the cooperation of stretching screw rod [1] and rotating nut [2].
2. interference engagement bolt disassembling tool according to claim 1, it is characterized in that, bolt clip [4] is made up of two semicircle clips, be respectively the first clip [4-1] and the second clip [4-2], the first clip [4-1] and the second clip [4-2] are hung on the bolt head of stretching screw rod [1] bottom.
3. interference engagement bolt disassembling tool according to claim 1, is characterized in that, the internal diameter of sleeve bearing [3], slightly larger than the external diameter of bolt clip [4], prevents bolt clip [4] from dropping from stretching screw rod [1] bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588160.8U CN204123068U (en) | 2014-10-11 | 2014-10-11 | A kind of extracting tool of interference engagement bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420588160.8U CN204123068U (en) | 2014-10-11 | 2014-10-11 | A kind of extracting tool of interference engagement bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204123068U true CN204123068U (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420588160.8U Active CN204123068U (en) | 2014-10-11 | 2014-10-11 | A kind of extracting tool of interference engagement bolt |
Country Status (1)
| Country | Link |
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| CN (1) | CN204123068U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109877572A (en) * | 2019-01-29 | 2019-06-14 | 航天科工防御技术研究试验中心 | A kind of bolt loading and unloading device and its installation, demounting bolt method |
-
2014
- 2014-10-11 CN CN201420588160.8U patent/CN204123068U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109877572A (en) * | 2019-01-29 | 2019-06-14 | 航天科工防御技术研究试验中心 | A kind of bolt loading and unloading device and its installation, demounting bolt method |
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| GR01 | Patent grant |