CN112682414A - Locking plate, locking structure and mounting method - Google Patents
Locking plate, locking structure and mounting method Download PDFInfo
- Publication number
- CN112682414A CN112682414A CN202011313417.5A CN202011313417A CN112682414A CN 112682414 A CN112682414 A CN 112682414A CN 202011313417 A CN202011313417 A CN 202011313417A CN 112682414 A CN112682414 A CN 112682414A
- Authority
- CN
- China
- Prior art keywords
- locking plate
- bolt
- locking
- nut
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Connection Of Plates (AREA)
Abstract
The invention belongs to the technical field of helicopter rotor shaft parts, and discloses a locking plate, a locking structure and an installation method. The locking plate is a stepped locking plate and comprises a high-end part and a low-end part; the high-end part is provided with a circular inner hole, the low-end part is provided with a hexagonal square hole, interlocking between nuts is realized, and the interlocking bolt is suitable for bolts which bear larger load or larger vibration and need interlocking, and is particularly suitable for helicopter rotor shaft tension bolts.
Description
Technical Field
The invention belongs to the technical field of helicopter rotor shaft parts, and particularly relates to a locking plate, a locking structure and an installation method.
Background
In a mechanical system, a bolt and a nut generally need to be locked so as to prevent the bolt and the nut from loosening due to factors such as vibration in a working state, a fuse is generally arranged for locking, and the mode not only needs to punch a hole in the nut, but also frequently finds out the condition of loosening of the fuse in practical application as shown in fig. 1.
Disclosure of Invention
The invention aims to provide a locking plate, a locking structure and an installation method, which are used for realizing the interlocking between nuts, are suitable for bolts which bear larger load or larger vibration and need to be interlocked, and are particularly suitable for helicopter rotor shaft tension bolts.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the first technical scheme is as follows:
a locking plate is a stepped locking plate and comprises a high-end part and a low-end part; the high-end part is provided with a circular inner hole, and the low-end part is provided with a hexagonal square hole.
The first technical scheme of the invention has the characteristics and further improvements that:
(1) the outer contour of the high end part is an incomplete hexagon (is convenient to match with the appearance of the assembled nut), and the outer contour of the low end part is an incomplete circle.
(2) The height difference between the high end part and the low end part is smaller than the thickness of the nut.
(3) The height difference between the high end part and the low end part is half of the thickness of the nut. (reliability of securing lower end portion)
(4) The high end part of the locking plate is in clearance fit with the cylindrical section of the first bolt, and the low end part of the locking plate is in clearance fit with the head part of the nut corresponding to the second bolt.
(5) The thickness ranges of the high end part and the low end part are respectively 1mm-3 mm.
The second technical scheme is as follows:
a locking structure comprises N bolts, N nuts and N locking plates according to the first technical scheme;
the high-end position and the ith bolt cylinder section clearance fit of the ith locking plate, the low-end position and the nut head clearance fit that the (i + 1) th bolt corresponds of the ith locking plate, and the high-end position and the nth bolt cylinder section clearance fit of the nth locking plate, the low-end position and the nut head clearance fit that the 1 st bolt corresponds of the nth locking plate, i ═ 1, …, N-1, N is the positive integer.
The third technical scheme is as follows:
a method of installing a locking structure according to claim two, the method comprising:
the method comprises the steps of sleeving a round hole in a first locking plate into a first bolt cylindrical section, screwing a first nut into a first bolt slightly, sleeving a round hole in a second locking plate into a second bolt cylindrical section, screwing a second nut into a second bolt slightly, sleeving a hexagonal hole of the first locking plate into a second nut until the hexagonal hole of the last locking plate is sleeved into the first nut, and screwing a hexagonal head at the end of the bolt by using a wrench so as to lock a group of nuts.
The invention provides a locking plate, a locking structure and an installation method, which are used for realizing the interlocking between nuts, are suitable for bolts which bear larger load or larger vibration and need to be interlocked, and are particularly suitable for helicopter rotor shaft tension bolts.
Drawings
FIG. 1 is a schematic view of a conventional locking structure;
FIG. 2 is a schematic view of a locking plate structure provided by the present invention;
FIG. 3 is a schematic view of the locking tab installation provided by the present invention;
FIG. 4 is an enlarged view of a portion of the locking tab installation provided by the present invention;
1-rotor shaft, a-fuse, 2-locking plate, 3-nut, 4-bolt, 5-propeller hub.
Detailed Description
The technical solution of the present invention is further explained with reference to the drawings and the detailed description.
The embodiment of the invention provides a locking plate capable of realizing nut interlocking, and the structural schematic diagram of the locking plate is shown in figure 2. The locking plate is Z-shaped, and the thickness of the locking plate is about 2 mm. Two ends of the locking plate are respectively provided with a hole, and one end of the locking plate is hexagonal in appearance and internally provided with a round hole which is in clearance fit with the cylindrical section of the bolt; one end of the nut is round in shape, and a hexagonal square hole is arranged in the nut and is in clearance fit with the nut. The mounting is shown in figure 3.
Specifically, the embodiment of the invention provides a locking plate, which is a stepped locking plate and comprises a high-end part and a low-end part; the high-end part is provided with a circular inner hole, and the low-end part is provided with a hexagonal square hole.
Further:
(1) the outer contour of the high end part is an incomplete hexagon (is convenient to match with the appearance of the assembled nut), and the outer contour of the low end part is an incomplete circle.
(2) The height difference between the high end part and the low end part is smaller than the thickness of the nut.
(3) The height difference between the high end part and the low end part is half of the thickness of the nut. (reliability of securing lower end portion)
(4) The high end part of the locking plate is in clearance fit with the cylindrical section of the first bolt, and the low end part of the locking plate is in clearance fit with the head part of the nut corresponding to the second bolt.
(5) The thickness ranges of the high end part and the low end part are respectively 1mm-3 mm.
Furthermore, the embodiment of the invention also provides a locking structure, which comprises N bolts, N nuts and N locking plates;
the high-end position and the ith bolt cylinder section clearance fit of the ith locking plate, the low-end position and the nut head clearance fit that the (i + 1) th bolt corresponds of the ith locking plate, and the high-end position and the nth bolt cylinder section clearance fit of the nth locking plate, the low-end position and the nut head clearance fit that the 1 st bolt corresponds of the nth locking plate, i ═ 1, …, N-1, N is the positive integer.
Further, an embodiment of the present invention further provides an installation method of a locking structure, where the installation method is used to install the locking structure, and the method includes:
the round hole in the first locking plate is sleeved into the first bolt cylindrical section, the first nut is screwed into the first bolt slightly, the round hole in the second locking plate is sleeved into the second bolt cylindrical section, the second nut is screwed into the second bolt slightly, the hexagonal hole of the first locking plate is sleeved into the second nut, as shown in fig. 4, until the hexagonal hole of the last locking plate is sleeved into the first nut, the hexagonal head at the end of the bolt is screwed by a wrench, and therefore a group of nuts are locked.
The invention provides a locking plate, a locking structure and an installation method, which are used for realizing the interlocking between nuts, are suitable for bolts which bear larger load or larger vibration and need to be interlocked, and are particularly suitable for helicopter rotor shaft tension bolts.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A locking plate is characterized in that the locking plate is a step-type locking plate and comprises a high-end part and a low-end part; the high-end part is provided with a circular inner hole, and the low-end part is provided with a hexagonal square hole.
2. The locking plate of claim 1, wherein said high end portion has an incomplete hexagonal outer contour and said low end portion has an incomplete circular outer contour.
3. The locking tab of claim 1, wherein the difference in height between the high end and the low end is less than the thickness of the nut.
4. The locking tab of claim 1, wherein the difference in height between the high end and the low end is one-half of the thickness of the nut.
5. The locking plate of claim 1, wherein a high end of the locking plate is in clearance fit with the cylindrical section of the first bolt, and a low end of the locking plate is in clearance fit with a corresponding head of the second bolt.
6. The locking tab of claim 1, wherein the thickness of each of said high end portion and said low end portion is in the range of 1mm to 3 mm.
7. A locking structure comprising N bolts, N nuts and N locking tabs according to claims 1-6;
the high-end position and the ith bolt cylinder section clearance fit of the ith locking plate, the low-end position and the nut head clearance fit that the (i + 1) th bolt corresponds of the ith locking plate, and the high-end position and the nth bolt cylinder section clearance fit of the nth locking plate, the low-end position and the nut head clearance fit that the 1 st bolt corresponds of the nth locking plate, i ═ 1, …, N-1, N is the positive integer.
8. A method of installing a locking structure, the method being for installing a locking structure according to claim 7, the method comprising:
the method comprises the steps of sleeving a round hole in a first locking plate into a first bolt cylindrical section, screwing a first nut into a first bolt slightly, sleeving a round hole in a second locking plate into a second bolt cylindrical section, screwing a second nut into a second bolt slightly, sleeving a hexagonal hole of the first locking plate into a second nut until the hexagonal hole of the last locking plate is sleeved into the first nut, and screwing a hexagonal head at the end of the bolt by using a wrench so as to lock a group of nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011313417.5A CN112682414B (en) | 2020-11-20 | 2020-11-20 | Locking structure and mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011313417.5A CN112682414B (en) | 2020-11-20 | 2020-11-20 | Locking structure and mounting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112682414A true CN112682414A (en) | 2021-04-20 |
| CN112682414B CN112682414B (en) | 2022-11-08 |
Family
ID=75446658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011313417.5A Active CN112682414B (en) | 2020-11-20 | 2020-11-20 | Locking structure and mounting method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112682414B (en) |
Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2031546A (en) * | 1978-09-15 | 1980-04-23 | Bosch Gmbh Robert | Locking assembly for pressure valve retainers in fuel injection pumps |
| GB9217237D0 (en) * | 1991-10-02 | 1992-09-23 | Green Michael J | Improvements in or relating to road wheel assemblies |
| CN2133705Y (en) * | 1992-08-21 | 1993-05-19 | 谢尔甫丁艾孜子 | Chain lock sheet of connecting rod bolt |
| JP2000266030A (en) * | 1999-03-16 | 2000-09-26 | Toa Giken:Kk | Hexagon coupling bolt and tool for preventing nut loosening |
| CN2444083Y (en) * | 2000-07-12 | 2001-08-22 | 四平电力金具研究所 | Anti-loosing washer of dividing spacing bar |
| CN101806322A (en) * | 2010-04-02 | 2010-08-18 | 太原轨道交通装备有限责任公司 | Anti-loosing and antitheft device for bolt and nut |
| CN201973057U (en) * | 2010-12-31 | 2011-09-14 | 保定天威集团有限公司 | Extra-high voltage converter multiple-nut united locking mechanism |
| CN203847837U (en) * | 2014-04-11 | 2014-09-24 | 大连沃达丰管道联接技术有限公司 | Combined clamping pipe clamp with anti-looseness locking structure |
| CN204437021U (en) * | 2014-10-28 | 2015-07-01 | 中国航空工业集团公司西安飞机设计研究所 | A kind of nut anti-looseness locking plate |
| CN204961540U (en) * | 2015-09-25 | 2016-01-13 | 绍兴赛得空调设备有限公司 | Prevent riveting nut not hard up fixed structure that skids |
| CN205371227U (en) * | 2015-12-03 | 2016-07-06 | 重庆西华皮带轮机械制造有限公司 | Connect and use locking subassembly |
| CN106321601A (en) * | 2015-06-24 | 2017-01-11 | 周丽兵 | Porous stop washer for electric railway contact net |
| CN205956173U (en) * | 2016-08-29 | 2017-02-15 | 大运汽车股份有限公司 | Locking locking plate of many nuts |
| CN107314021A (en) * | 2017-06-22 | 2017-11-03 | 安徽江淮汽车集团股份有限公司 | One kind installs nut assembly and suspension swing arm mounting structure |
| CN108331828A (en) * | 2018-01-19 | 2018-07-27 | 马群 | Anti-loosing slice for hex nut and hexagon-headed bolt |
| CN207777384U (en) * | 2018-01-08 | 2018-08-28 | 三峡大学 | A kind of easy-disassembling-assembling anti-loosening device of bolt |
| CN209687898U (en) * | 2019-01-22 | 2019-11-26 | 湖南星邦重工有限公司 | A kind of screw retention locking plate |
| CN209737500U (en) * | 2019-01-21 | 2019-12-06 | 中国石油天然气股份有限公司 | Back-up tong for dismounting flange and dismounting device |
-
2020
- 2020-11-20 CN CN202011313417.5A patent/CN112682414B/en active Active
Patent Citations (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2031546A (en) * | 1978-09-15 | 1980-04-23 | Bosch Gmbh Robert | Locking assembly for pressure valve retainers in fuel injection pumps |
| GB9217237D0 (en) * | 1991-10-02 | 1992-09-23 | Green Michael J | Improvements in or relating to road wheel assemblies |
| CN2133705Y (en) * | 1992-08-21 | 1993-05-19 | 谢尔甫丁艾孜子 | Chain lock sheet of connecting rod bolt |
| JP2000266030A (en) * | 1999-03-16 | 2000-09-26 | Toa Giken:Kk | Hexagon coupling bolt and tool for preventing nut loosening |
| CN2444083Y (en) * | 2000-07-12 | 2001-08-22 | 四平电力金具研究所 | Anti-loosing washer of dividing spacing bar |
| CN101806322A (en) * | 2010-04-02 | 2010-08-18 | 太原轨道交通装备有限责任公司 | Anti-loosing and antitheft device for bolt and nut |
| CN201973057U (en) * | 2010-12-31 | 2011-09-14 | 保定天威集团有限公司 | Extra-high voltage converter multiple-nut united locking mechanism |
| CN203847837U (en) * | 2014-04-11 | 2014-09-24 | 大连沃达丰管道联接技术有限公司 | Combined clamping pipe clamp with anti-looseness locking structure |
| CN204437021U (en) * | 2014-10-28 | 2015-07-01 | 中国航空工业集团公司西安飞机设计研究所 | A kind of nut anti-looseness locking plate |
| CN106321601A (en) * | 2015-06-24 | 2017-01-11 | 周丽兵 | Porous stop washer for electric railway contact net |
| CN204961540U (en) * | 2015-09-25 | 2016-01-13 | 绍兴赛得空调设备有限公司 | Prevent riveting nut not hard up fixed structure that skids |
| CN205371227U (en) * | 2015-12-03 | 2016-07-06 | 重庆西华皮带轮机械制造有限公司 | Connect and use locking subassembly |
| CN205956173U (en) * | 2016-08-29 | 2017-02-15 | 大运汽车股份有限公司 | Locking locking plate of many nuts |
| CN107314021A (en) * | 2017-06-22 | 2017-11-03 | 安徽江淮汽车集团股份有限公司 | One kind installs nut assembly and suspension swing arm mounting structure |
| CN207777384U (en) * | 2018-01-08 | 2018-08-28 | 三峡大学 | A kind of easy-disassembling-assembling anti-loosening device of bolt |
| CN108331828A (en) * | 2018-01-19 | 2018-07-27 | 马群 | Anti-loosing slice for hex nut and hexagon-headed bolt |
| CN209737500U (en) * | 2019-01-21 | 2019-12-06 | 中国石油天然气股份有限公司 | Back-up tong for dismounting flange and dismounting device |
| CN209687898U (en) * | 2019-01-22 | 2019-11-26 | 湖南星邦重工有限公司 | A kind of screw retention locking plate |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112682414B (en) | 2022-11-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3309387B1 (en) | Bearing supporting apparatus for wind turbine generator system, installing method, and wind turbine generator system | |
| EP2044342A1 (en) | Locknut system | |
| EP0398092A1 (en) | Torque transmitting beam for wheel having brake torque drives | |
| WO2019040819A1 (en) | Connecting structural member | |
| CN112392665A (en) | Wind turbine tower section | |
| CN2200720Y (en) | Double-locking anti-loose combined nut | |
| CN112682414B (en) | Locking structure and mounting method | |
| CN101328859B (en) | Main shaft of wind power generator | |
| CN113107951B (en) | Bolt connection nut anti loosening structure | |
| CN113167221A (en) | Rotor for a wind energy plant and method | |
| CN113833598B (en) | Hub and main shaft connecting structure and connecting method in wind turbine generator system | |
| CN111779751A (en) | Locking bolt structure that moves | |
| CN208294976U (en) | Yielding coupling | |
| WO2016096854A1 (en) | Bolted attachment for attaching wind turbine parts | |
| CN215980346U (en) | Stud fastener for nuclear power engineering | |
| CN219388368U (en) | Fastening connection assembly | |
| CN219197903U (en) | Sliding bearing structure | |
| CN114536262B (en) | Electric torque wrench | |
| CN209977084U (en) | Axle subassembly, derailleur and vehicle | |
| CN214196911U (en) | Locknut with elastic anti-loosening structure | |
| CN219969288U (en) | All-terrain vehicle rim connecting disc | |
| CN217800119U (en) | Round nut dismounting tool for armored vehicle | |
| CN220581480U (en) | Anti-loose self-locking nut | |
| CN216077899U (en) | Be suitable for bolt of assembling in advance of aluminum alloy individual layer spherical shell structure | |
| CN209925409U (en) | Transaxle hub nut locking structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |