CN102642190B - Separation preventing device for screw - Google Patents
Separation preventing device for screw Download PDFInfo
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- CN102642190B CN102642190B CN201110418529.1A CN201110418529A CN102642190B CN 102642190 B CN102642190 B CN 102642190B CN 201110418529 A CN201110418529 A CN 201110418529A CN 102642190 B CN102642190 B CN 102642190B
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- screw
- long bolt
- loop bar
- spring
- bar
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Abstract
The invention relates to a separation preventing device for a screw. The separation preventing device is characterized by comprising a long bolt (1), a sleeve rod (2), a threaded sleeve (3), a circular plate (4), a spring (5) and a hexagonal rod (6); the spring (5) is mounted in the sleeve rod (2); one end of the spring leans against a ladder in the sleeve rod (2); the other end of the spring is in contact with the circular plate (4); after the long bolt (1) is screwed in from one section of the sleeve rod (2), along with the movement of the long bolt (1), the head of the long bolt (1) withstands the circular plate (4), so that the hexagonal rod (6) generates a displacement; and the circular plate (4) compresses the spring (5), so that the entering of a part to be mounted in the head of the hexagonal rod (6) is realized. By adopting the technical scheme, the hexagonal rod can move vertically and can be enabled to be correctly connected with a hexagonal hole in the head of the screw, and after the connection is completed, when the long bolt is rotated again, the screw, a flat washer and a spring washer assembly can be precisely and quickly mounted in a screw hole.
Description
Technical field
The present invention relates to a kind of mechanical connection anti-drop device, especially relate to a kind of screw anti-drop device.
Background technology
In Product Assembly process, all need to tighten screw, plain washer, spring washer assembly with instruments such as screwdriver, Allen wrenches.The position that unit is installed in Product Assembly process is different, the instrument such as screwdriver, Allen wrench all can not be installed in screw by screw, plain washer, spring washer assembly by Hen easily smoothly, and accidentally screw, plain washer and spring washer can be dropped in product in assembling process, sometimes in order to find one, drop to screw in product, plain washer or spring washer, just will can search out with several hours or several days time.Have a strong impact on like this cycle of product development, to product, brought very large hidden danger.
Product final assemble operating personnel have also taked a lot of measures to prevent that screw, plain washer, spring pad from dropping in product in assembling process, but effect is all not obvious.On domestic market, do not have suitable instrument to adopt yet.So the problem that solution screw, plain washer, spring pad drop on product is extremely urgent.
So need improve Product Assembly instrument, carry out the instruments such as alternate screwdriver, Allen wrench with a kind of new screw anti-drop device, to meet the needs of general assembly operating personnel in assembling.
Do not find at present explanation or the report of technology similar to the present invention, not yet collect both at home and abroad similarly data yet.
Summary of the invention
The technical problem to be solved in the present invention is: for tighten the deficiency of the instrument existence of screw, plain washer, spring washer assembly with instruments such as screwdriver, Allen wrenches in Product Assembly process, provide a kind of screw anti-drop device.
Technical scheme of the present invention is: a kind of screw secure mounting arrangements, is characterized in that: this device comprises long bolt, loop bar, swivel nut, plectane, spring, hexagonal bar, and wherein, the front end of described loop bar has a breach, for holding part to be installed; Swivel nut installs in loop bar, and the end face at swivel nut and loop bar after installing welds; Plectane is arranged on hexagonal bar by screw, and forms hexagonal bar assembly together with hexagonal bar; Spring fitting is in loop bar, its one end is resisted against on the ladder in loop bar, the other end contacts with plectane, long bolt is from one section of screw-in of loop bar, along with long bolt moves, the head of long bolt withstands plectane, makes hexagonal bar produce displacement, plectane Compress Spring, the head of realizing hexagonal bar enters part to be installed.Wherein, loop bar (2) adopted nitrogen treatment before fine finishining, loop bar case hardness after processing reaches RC50, it is 40Cr structural carbon steel that long bolt (1) adopts the trade mark, swivel nut (3) adopts the high 1Cr18Ni9Ti titaniferous stainless steel of corrosion resistance, guarantees that swivel nut (3) and long bolt (1) do not kill in rotation process.
Institute the invention has the beneficial effects as follows: stating long bolt has different lengths to regulate according to actual conditions, and accurately locates fast.Described hexagonal bar, can move up and down, and can guarantee and screw head inner hexagonal hole exact connect ion, while rotating long bolt again after connection, screw, plain washer, spring washer assembly accurately can be quickly installed in screw.
Accompanying drawing explanation
Fig. 1 screw anti-drop device of the present invention structure chart;
Fig. 2 loop bar structure chart of the present invention;
Fig. 3, loop bar flow process chart of the present invention,
Fig. 4, structure enlarged drawing of the present invention.
Wherein: 1-long bolt, 2-loop bar, 3-swivel nut, 4-plectane, 5-spring, 6-hexagonal bar;
The specific embodiment
Below in conjunction with accompanying drawing 1-4, technical scheme of the present invention is further described, wherein:
As shown in Figure 1, a kind of screw anti-drop device, this device comprises long bolt 1, loop bar 2, swivel nut 3, plectane 4, spring 5, hexagonal bar 6, wherein, the front end of described loop bar 2 has a breach, for holding part to be installed; Swivel nut 3 installs in loop bar 2, and the end face at swivel nut 3 and loop bar 2 after installing welds; Plectane 4 is arranged on hexagonal bar 6 by screw, and forms hexagonal bar assembly together with hexagonal bar; Spring 5 is arranged in loop bar 2, its one end is resisted against on the ladder in loop bar 2, the other end contacts with plectane 4, long bolt 1 is from one section of screw-in of loop bar 2, along with long bolt 1 moves, the head of long bolt 1 withstands plectane 4, makes hexagonal bar 6 produce displacement, plectane 4 Compress Springs 5, the head of realizing hexagonal bar 6 enters part to be installed.
Described long bolt 1 as shown in Figure 1, the length of long bolt 1 needs to regulate according to actual conditions, length has the plurality of specifications such as 120mm, 150mm, 200mm, 250mm, and the material that screw rod 1 is selected is that the intensity trade mark high and that have enough plasticity and toughness is that 40Cr (GB702-86) carbon constructional quality steel is made.
As shown in Figure 2, loop bar 2 is axial workpieces to described loop bar 2, is a critical component in this device, is again a main stressed part, in order to guarantee the requirements such as intensity, wearability and toughness of loop bar 2.Loop bar 2 first carries out roughing by the shape requirement of drawing, in order to prevent distortion, puts allowance 1mm～2mm, then carries out modifier treatment, makes the institutional framework of material become tempered sorbite and organizes to improve the intensity of body, plasticity and toughness.After modifier treatment, then carry out semifinishing, in process, put grinding allowance 0.2mm～0.3mm, in order to improve wearability and stability, before fine finishining, adopt nitrogen treatment.Loop bar case hardness (being Rockwell hardness) after via nitride is processed reaches RC50, has very strong wearability, improves its fatigue strength (improving 25% left and right) simultaneously.Finally carry out grinding.In order to strengthen loop bar 2 intensity and wearability, concrete processing process operates by the flow process chart of Fig. 3 loop bar.
The front end of described loop bar 2 has a breach, and this breach is rectangle breach, step surface for mounting screw, plain washer, spring pad assembly and guarantee that screw, plain washer, spring pad install correctness.
Described swivel nut 3 as shown in Figure 1, it is 1Cr18Ni9Ti titaniferous stainless steel that swivel nut 3 is selected the trade mark that corrosion resistance is high, guarantee the phenomenon that swivel nut 3 and long bolt 1 can not be killed in rotation process, if the phenomenon of selecting identical 1Cr18Ni9Ti titaniferous stainless steel material swivel nut 3 and long bolt 1 can kill in rotation process.
As shown in Figure 1, select the trade mark with enough plasticity and toughness is that the carbon constructional quality steel of 45 (GB702-86) is made to described plectane 4.
Described spring 5 as shown in Figure 1, selects the board with enough plasticity and toughness to be: 65Mn/GB/T3078-1994 spring steel wire.
Described hexagonal bar 6 as shown in Figure 1, is an important part in this device, and hexagonal bar is a main stressed part, in order to guarantee the requirements such as intensity, wearability and toughness of hexagonal bar.Hexagonal bar first carries out roughing by the shape requirement of drawing, in order to prevent distortion, puts allowance 0.5mm, then carries out modifier treatment, improves intensity, plasticity and the toughness of material body.After modifier treatment, then carry out semifinishing, in process, put grinding allowance 0.1mm～0.2mm, in order to improve wearability and stability, before fine finishining, adopt nitrogen treatment.Concrete processing process operates by the flow process chart of Fig. 3 loop bar.
As shown in Figure 4, described screw anti-drop device assembling process is as follows:
1, the sunk screw of plectane 4 use M3 * 5 is arranged on hexagonal bar 6, installs the rear seccotine sealing of using, form an assembly.
2, spring 5 is arranged in loop bar 2.
3, plectane 4 and hexagonal bar 6 assemblies are placed in spring 5.
4, swivel nut 3 is installed in loop bar 2, the end face at swivel nut 3 and loop bar 2 after installing welds, and anti-drop device component assembling is complete.
Described screw anti-drop device is used operating procedure structure enlarged drawing as shown in Figure 4, and the operating procedure that soket head cap screw, φ 6 plain washers and φ 6 spring pads are installed is as follows:
1, the soket head cap screw of M6 * 20, φ 6 plain washers and φ 6 spring pads are installed to the indentation, there of loop bar 2.
2, in swivel nut long bolt 1 being screwed on anti-drop device assembly.
3, along with long bolt 1 moves, the head of long bolt 1 withstands plectane 4, makes hexagonal bar 6 produce displacement, plectane 4 Compress Springs 5, and the head of realizing hexagonal bar 6 enters in soket head cap screw.
4, soket head cap screw assembly just can not fall down like this.The screw anti-drop device that soket head cap screw assembly is housed is carried out to the installation of satellite unit.
5, the continuation of long bolt 1 rotation is arranged on soket head cap screw, plain washer and spring pad on satellite unit by hexagonal bar 6 transmitting torques.
6, after soket head cap screw, plain washer and spring pad assembly install, long bolt 1 is screwed out gradually, compressed spring 5 bounce-backs are exited the head of hexagonal bar 6 in soket head cap screw.
7, screw anti-drop device is taken out from installation site.Soket head cap screw, plain washer and spring pad fitting operation complete.
Screw anti-drop device is used in satellite unit assembling process.Solve soket head cap screw, plain washer, spring pad and dropped to the problem on satellite.With screw anti-drop device, carry out the instruments such as alternate screwdriver, Allen wrench, greatly improve the security reliability in satellite installation process, improved operating efficiency, general assembly and Denso operating personnel are quite satisfied with.
Claims (2)
1. a screw anti-drop device, it is characterized in that: this device comprises long bolt (1), loop bar (2), swivel nut (3), plectane (4), spring (5), hexagonal bar (6), wherein, the front end of described loop bar (2) has a breach, for holding part to be installed; Swivel nut (3) installs in loop bar (2), and the end face at swivel nut (3) and loop bar (2) after installing welds; It is upper that plectane (4) is arranged on hexagonal bar (6) by screw, and form hexagonal bar assembly together with hexagonal bar; Spring (5) is arranged in loop bar (2), its one end is resisted against on the ladder in loop bar (2), the other end contacts with plectane (4), long bolt (1) is from one end screw-in of loop bar (2), along with long bolt (1) is mobile, the head of long bolt (1) withstands plectane (4), makes hexagonal bar (6) produce displacement, plectane (4) Compress Spring (5), the head of realizing hexagonal bar (6) enters part to be installed; Wherein, loop bar (2) adopted nitrogen treatment before fine finishining, loop bar case hardness after processing reaches RC50, it is 40Cr structural carbon steel that long bolt (1) adopts the trade mark, swivel nut (3) adopts the high 1Cr18Ni9Ti titaniferous stainless steel of corrosion resistance, guarantees that swivel nut (3) and long bolt (1) do not kill in rotation process.
2. a kind of screw anti-drop device as claimed in claim 1, is characterized in that: part to be installed is soket head cap screw, plain washer, spring pad assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110418529.1A CN102642190B (en) | 2011-12-15 | 2011-12-15 | Separation preventing device for screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110418529.1A CN102642190B (en) | 2011-12-15 | 2011-12-15 | Separation preventing device for screw |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102642190A CN102642190A (en) | 2012-08-22 |
| CN102642190B true CN102642190B (en) | 2014-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110418529.1A Active CN102642190B (en) | 2011-12-15 | 2011-12-15 | Separation preventing device for screw |
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| Country | Link |
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| CN (1) | CN102642190B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103317486B (en) * | 2013-05-24 | 2015-11-18 | 上海卫星装备研究所 | Adjustable satellite protection bracket |
| CN108082529B (en) * | 2017-11-30 | 2021-02-05 | 江西洪都航空工业集团有限责任公司 | Disassembling and assembling device for clamp standard part |
| CN108621089B (en) * | 2018-06-14 | 2020-03-06 | 上海卫星工程研究所 | Method for adjusting satellite remote sensing instrument installation precision based on drill plate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6330737B1 (en) * | 1997-09-26 | 2001-12-18 | Trego Maskin Ab | Tool for mounting disk valves in motor cylinder heads |
| CN2620125Y (en) * | 2003-05-16 | 2004-06-09 | 徐州精特矿用电器有限公司 | Long head bolt locking part with anti-loosening washer and insulation sleeve |
| CN201344478Y (en) * | 2009-01-24 | 2009-11-11 | 四川九洲铭伟半导体照明有限公司 | Shockproof, anti-loosening and anti-drop structure for light emitting diode (LED) |
| CN201428713Y (en) * | 2009-06-12 | 2010-03-24 | 贵州航天精工制造有限公司 | Anti-falling quickly-screwed type screw fastener |
-
2011
- 2011-12-15 CN CN201110418529.1A patent/CN102642190B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6330737B1 (en) * | 1997-09-26 | 2001-12-18 | Trego Maskin Ab | Tool for mounting disk valves in motor cylinder heads |
| CN2620125Y (en) * | 2003-05-16 | 2004-06-09 | 徐州精特矿用电器有限公司 | Long head bolt locking part with anti-loosening washer and insulation sleeve |
| CN201344478Y (en) * | 2009-01-24 | 2009-11-11 | 四川九洲铭伟半导体照明有限公司 | Shockproof, anti-loosening and anti-drop structure for light emitting diode (LED) |
| CN201428713Y (en) * | 2009-06-12 | 2010-03-24 | 贵州航天精工制造有限公司 | Anti-falling quickly-screwed type screw fastener |
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| Publication number | Publication date |
|---|---|
| CN102642190A (en) | 2012-08-22 |
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Owner name: SHANGHAI SATELLITE EQUIPMENT INSTITUTE Free format text: FORMER OWNER: SHANGHAI SATELLITE ENGINEERING RESEARCH INSTITUTE Effective date: 20130909 |
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Effective date of registration: 20130909 Address after: 200240 Shanghai city Minhang District Huaning Road No. 251 Applicant after: Shanghai Institute of Satellite Equipment Address before: 200240 Shanghai city Minhang District Huaning Road No. 251 Applicant before: Shanghai Satellite Engineering Research Institute |
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