CN112173167B - Box-type balance safety locking device - Google Patents
Box-type balance safety locking device Download PDFInfo
- Publication number
- CN112173167B CN112173167B CN202011020458.5A CN202011020458A CN112173167B CN 112173167 B CN112173167 B CN 112173167B CN 202011020458 A CN202011020458 A CN 202011020458A CN 112173167 B CN112173167 B CN 112173167B
- Authority
- CN
- China
- Prior art keywords
- locking
- nut
- safety locking
- support column
- locking device
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64F—GROUND OR AIRCRAFT-CARRIER-DECK INSTALLATIONS SPECIALLY ADAPTED FOR USE IN CONNECTION WITH AIRCRAFT; DESIGNING, MANUFACTURING, ASSEMBLING, CLEANING, MAINTAINING OR REPAIRING AIRCRAFT, NOT OTHERWISE PROVIDED FOR; HANDLING, TRANSPORTING, TESTING OR INSPECTING AIRCRAFT COMPONENTS, NOT OTHERWISE PROVIDED FOR
- B64F5/00—Designing, manufacturing, assembling, cleaning, maintaining or repairing aircraft, not otherwise provided for; Handling, transporting, testing or inspecting aircraft components, not otherwise provided for
- B64F5/60—Testing or inspecting aircraft components or systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G23/00—Auxiliary devices for weighing apparatus
- G01G23/02—Relieving mechanisms; Arrestment mechanisms
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01G—WEIGHING
- G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
- G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Transportation (AREA)
- Aviation & Aerospace Engineering (AREA)
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The invention belongs to the technical field of helicopter rotor tests, and discloses a box-type balance safety locking device, which comprises: the technical key point of the scheme is to control different depths of clamping grooves of the safety locking columns and the matching sizes of the structural sizes and the locking sleeves of the safety locking columns, and the sizes are determined according to the structure of a balance. The assembly relation among all spare parts is: the locking sleeve back-tightening nut is sleeved into the safety locking column, the safety locking column adjusting base is installed on the balance, the safety locking column is connected into the safety locking column adjusting base in series, the height of the safety locking column is adjusted, the safety locking column is controlled to be in a proper position, the locking sleeve is connected in series, and the back-tightening nut is screwed in. The invention can quickly and reliably provide locking and loosening states for the box-type strain balance and can control the adjustment amount.
Description
Technical Field
The invention belongs to the technical field of helicopter rotor tests, and particularly relates to a box type balance safety locking device.
Background
The box type strain rotor wing balance is special equipment for measuring force elements in a rotor wing system performance test and a durability test, and the rotor wing system is arranged on a balance floating frame. The rotor wing balance works in a periodic alternation and vibration environment, and the elastic connecting rod of the balance has the possibility of breaking, so the elastic connecting rod of the balance is protected, and the rotor wing system can be protected from being damaged.
There are two conditions under which the safety locking device operates. When the rotor balance is locked, the rotor balance mainly plays a role in protecting the elastic connecting rod of the balance in the processes of installation, disassembly and transportation, so that overlarge load is limited to be transmitted to the force measuring element, the sensor is prevented from being damaged due to the overlarge load, and the integral rigidity of the part above the balance of the test bed can be improved when the rotor balance is locked; the balance safety device is in a loose state, is mainly used for meeting the requirement that a force measuring element measures the force element generated by a rotor system, and can limit larger deformation of the balance in the working process to protect a test piece.
At present, according to the action of a balance, meanwhile, in order to conveniently convert the state, a safety locking device is required to limit the size of a locking load, the distance from a balance floating frame during loosening needs to be proper and cannot be large or small, and meanwhile, a good anti-loosening effect needs to be achieved.
Disclosure of Invention
The technical problems to be solved by the invention are as follows:
the purpose of the invention is: the safety locking device for the rotor wing balance can quickly and reliably provide locking and loosening states for the box type strain balance, and can control the adjustment amount.
The technical scheme of the invention is as follows:
a cassette balance safety locking device comprising: the device comprises a fixed frame, a floating frame, a measuring element and a plurality of locking columns;
the measuring element is arranged between the fixed frame and the floating frame;
one end of the locking column is fixedly connected with the fixed frame, and the other end of the locking column is connected with the floating frame;
the locking post includes: the adjusting base, the supporting column, the locking sleeve and the back nut are arranged;
the lower end of the adjusting base is fixedly connected with the fixing frame, and the upper end of the adjusting base is fixed at the lower end of the support column;
an annular table is arranged at the joint of the upper end of the supporting column and the floating frame; the upper end surface and the lower end surface of the annular table are respectively provided with a first groove and a second groove;
the locking sleeve is annular, and one end of the locking sleeve is provided with a latch; the latch is used for being matched with the first groove or the second groove on the annular table and realizing locking or floating of the floating frame through a back nut.
Further, the lock sleeve includes: an upper locking sleeve and a lower locking sleeve; the upper locking sleeve is arranged above the support column annular table; the lower locking sleeve is arranged below the support column annular table.
Further, the back nut includes: an upper back nut and a lower back nut; the upper back-up nut is arranged above the upper locking sleeve and is used for pressing the upper locking sleeve; the lower back nut is arranged below the lower locking sleeve and used for compressing the lower locking sleeve.
Further, the support column is provided with external threads.
Further, the first groove depth is less than the second groove depth.
Further, the difference between the depth of the first groove and the depth of the second groove is 0.5 mm.
Further, the locking device further comprises: an upper locknut and a lower locknut; the upper anti-loose nut is arranged above the upper back-tightening nut and used for preventing the upper back-tightening nut from loosening; the lower anti-loose nut is arranged below the lower back-tightening nut and used for preventing the lower back-tightening nut from loosening.
Furthermore, the upper end face of the adjusting base is provided with a threaded hole, and the lower end of the support column is screwed into the threaded hole through an external thread.
Furthermore, the locking device also comprises a support column back nut; the support post back-tightening nut is arranged above the adjusting base; the support column back-tightening nut is used for locking the support column in the threaded hole to prevent the support column from rotating.
The invention has the beneficial effects that:
(1) the environmental adaptability is strong, and the adjustment can be completed on the test site;
(2) the operation is simple and convenient, professional training is not needed, and the labor intensity of operators is low;
(3) the device has simple structure, easy processing, looseness prevention and safe and reliable protection;
(4) the box type strain balance can be suitable for box type strain balances with different structural sizes.
Drawings
FIG. 1 is a schematic view of the overall structure of the locking device;
FIG. 2 is a schematic view of the assembly of the locking device with the cassette balance;
FIG. 3 is a schematic view of a back nut;
FIG. 4 is a schematic view of a locking sleeve;
FIG. 5 is a schematic view of an adjustment base;
FIG. 6 is a schematic view of a support post;
in the figure, 1-upper locknut, 2-upper back-up nut, 3-upper locking sleeve, 4-lower locking sleeve, 5-lower back-up nut, 6-lower locknut, 7-support column, 8-support column back-up nut, and 9-adjusting base.
Detailed Description
The technical scheme of the invention is as follows: a box-type rotor balance safety locking device, as shown in fig. 1, comprising: go up locknut 1, go up back of the body lock nut 2, back of the body lock nut 5 down, lower locknut 6, support column back of the body lock nut 8, go up locking collar 3, lower locking collar 4, safe locking post 7, safe locking post adjustment base 9.
The technical key point of the scheme is that the structural sizes with different groove depths of the safety locking column and the matching sizes of the locking sleeve are controlled, the sizes are determined according to the structure of the balance, when the balance is in a locking state, the upper locking sleeve 3 and the lower locking sleeve 4 are attached to the floating frame, the upper locking sleeve latch and the lower locking sleeve latch are attached to the shallow groove of the safety locking column, and when the balance is screwed down by the back nut, the screw pre-tightening force is ensured to only transmit a part of force to the balance measuring element, so that the load transmitted to the measuring element is limited, and the measuring element is protected; when the balance is in a loosening state, the upper locking sleeve 3 and the lower locking sleeve 4 are separated from the floating frame and limit a certain distance, the upper locking sleeve latch and the lower locking sleeve latch are attached to the deep clamping groove of the safety locking column, normal use of the balance is guaranteed when the balance is screwed down by the back-up nut, and meanwhile, the movement distance of the floating frame is limited when the elastic connecting rod of the balance is broken, so that a rotor system is protected. The assembly relation among all spare parts is: the locking sleeve 4, the lower back-tightening nut 5, the lower locknut 6 and the support column back-tightening nut 8 are sleeved in the safety locking column 7; the base 9 is arranged on the balance, the safety locking column 7 is connected in series with the safety locking column adjusting base 9, the height of the safety locking column 7 is adjusted, the safety locking column 7 is controlled at a proper position, and the nut 8 is tightened by a support column; then the locking sleeve 3 is connected in series, and the upper back-tightening nut 2 and the upper locknut 1 are screwed in. The adjustment base is shown in fig. 5 and the support column is shown in fig. 6.
The working principle is as follows: as shown in fig. 2, the cassette balance is fixed by a plurality of locking devices, 3 in the figure. The box type rotor wing balance has two using states, one is a loosening state, and the other is a locking state. When in a loose state, the clamping tables of the upper locking sleeve 3 and the lower locking sleeve 4 are inserted into the shallow clamping groove of the safety locking column and are screwed by back nuts 1, 2, 5, 6 and 8 shown in figure 3. When in a locking state, the locking sleeves 3 and 4 shown in figure 4 are inserted into the deep clamping grooves of the safe locking columns and are screwed by the back-up nuts 1, 2, 5 and 6.
A method for protecting a balance using the safety locking device, the method comprising the steps of: adjusting the height of the safety locking column, and locking the safety locking column 7 by using a support column back-up nut 8; when in a loosening state, the clamping platforms of the upper locking sleeve 3 and the lower locking sleeve 4 are inserted into the shallow clamping groove of the safety locking column and are screwed up by the upper locknut 1, the upper back-up nut 2, the lower locknut 5 and the lower back-up nut 6. During the locking state, insert the deep draw-in groove of safe locking post to locking cover 3 on the lock sleeve and 4 ka tairs down, tighten up with locknut 1 on the back of the body nut, last back of the body nut 2, locknut 5 down, back of the body nut 6 down.
The invention can quickly and reliably provide locking and loosening states for the box-type strain balance and can control the adjustment amount.
Claims (8)
1. A box balance safety locking device which is characterized in that: the locking device includes: the device comprises a fixed frame, a floating frame, a measuring element and a plurality of locking columns;
the measuring element is arranged between the fixed frame and the floating frame;
one end of each locking column is fixedly connected with the fixed frame, and the other end of each locking column is connected with the floating frame;
each locking post includes: the adjusting base, the supporting column, the locking sleeve and the back nut are arranged;
the lower end of the adjusting base is fixedly connected with the fixing frame, and the upper end of the adjusting base is fixed at the lower end of the support column;
an annular table is arranged at the joint of the upper end of the supporting column and the floating frame; the upper end surface and the lower end surface of the annular table are respectively provided with a first groove and a second groove; the first groove depth is less than the second groove depth;
the locking sleeve is annular, and one end of the locking sleeve is provided with a latch; the latch is used for being matched with the first groove or the second groove on the annular table and realizing locking or floating of the floating frame through a back nut.
2. The safety locking device for a box balance according to claim 1, wherein: the lock sleeve includes: an upper locking sleeve and a lower locking sleeve; the upper locking sleeve is arranged above the annular table of the support column; the lower locking sleeve is arranged below the support column annular table.
3. The safety locking device for a box balance according to claim 2, wherein: the back nut includes: an upper back nut and a lower back nut; the upper back-up nut is arranged above the upper locking sleeve and is used for pressing the upper locking sleeve; the lower back nut is arranged below the lower locking sleeve and used for compressing the lower locking sleeve.
4. The safety locking device for a box balance according to claim 3, wherein: the support column is provided with external threads.
5. The safety locking device for a box balance according to claim 4, wherein: the difference between the depth of the first groove and the depth of the second groove is 0.5 mm.
6. The safety locking device for a box balance according to claim 5, wherein: the locking device further comprises: an upper locknut and a lower locknut; the upper anti-loose nut is arranged above the upper back-tightening nut and used for preventing the upper back-tightening nut from loosening; the lower anti-loose nut is arranged below the lower back-tightening nut and used for preventing the lower back-tightening nut from loosening.
7. The safety locking device for a box balance according to claim 6, wherein: the upper end face of the adjusting base is provided with a threaded hole, and the lower end of the support column is screwed into the threaded hole through external threads.
8. The safety locking device for a box balance according to claim 7, wherein: the locking device also comprises a support column back nut; the support column back-tightening nut is arranged above the adjusting base; the support column back-tightening nut is used for locking the support column in the threaded hole to prevent the support column from rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011020458.5A CN112173167B (en) | 2020-09-25 | 2020-09-25 | Box-type balance safety locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011020458.5A CN112173167B (en) | 2020-09-25 | 2020-09-25 | Box-type balance safety locking device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112173167A CN112173167A (en) | 2021-01-05 |
| CN112173167B true CN112173167B (en) | 2022-09-27 |
Family
ID=73943737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011020458.5A Active CN112173167B (en) | 2020-09-25 | 2020-09-25 | Box-type balance safety locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112173167B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112798218B (en) * | 2021-04-12 | 2021-07-02 | 中国空气动力研究与发展中心低速空气动力研究所 | Model and rod balance connecting structure for wind tunnel test |
| CN113984327A (en) * | 2021-10-18 | 2022-01-28 | 中国航空工业集团公司北京长城计量测试技术研究所 | Flexible part with cross structure and strain balance |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06114649A (en) * | 1992-10-01 | 1994-04-26 | Kanto Auto Works Ltd | Nut runner locating method |
| EP1191244A1 (en) * | 2000-09-26 | 2002-03-27 | Reliance Electric Technologies, LLC | Positive Lock for bearing subassembly and adjusting nut kit |
| WO2007022998A1 (en) * | 2005-08-26 | 2007-03-01 | Airbus Deutschland Gmbh | Linear actuating organ, in particular for the remote actuation of displaceable components in wind tunnel models |
| JP4710089B1 (en) * | 2010-06-03 | 2011-06-29 | イイファス株式会社 | Locking washer and locking fastener using the same |
| CN207064024U (en) * | 2017-07-31 | 2018-03-02 | 中国航发商用航空发动机有限责任公司 | Locking anti-loosening device and aeroengine rotor fastening system |
| CN207570752U (en) * | 2017-11-16 | 2018-07-03 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of anti-impact device applied to balance in intermittent wind tunnel |
| WO2018121399A1 (en) * | 2016-12-29 | 2018-07-05 | 上海蔚来汽车有限公司 | Circumferential locking mechanism and battery locking device comprising same, power battery pack, and vehicle |
| CN109774968A (en) * | 2019-01-22 | 2019-05-21 | 南京航空航天大学 | A kind of shaft part and support adjustable multi-bearing rotor testing stand |
| CN210196220U (en) * | 2019-07-18 | 2020-03-27 | 厦门巨林仪器有限公司 | Lock pipe connecting piece and scale |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH362247A (en) * | 1957-06-28 | 1962-05-31 | Meopta Praha Narodni Podnik | Scales for density measurement of liquids |
| PL2088406T3 (en) * | 2008-02-06 | 2012-08-31 | Mettler Toledo Gmbh | Weighing machine with windshield |
| DE102010053277A1 (en) * | 2010-12-02 | 2012-06-06 | Airbus Operations Gmbh | Locking fixture, recliner fixture, component system, main wing of an aircraft wind tunnel model and aircraft wind tunnel model with such a main wing |
| US10436239B2 (en) * | 2011-03-21 | 2019-10-08 | Jpb Système | Self-locking sealing device |
| CN202403901U (en) * | 2011-12-20 | 2012-08-29 | 中国直升机设计研究所 | Dynamic characteristic testing device for blades |
| CN103983393B (en) * | 2014-05-21 | 2016-08-17 | 中国航天空气动力技术研究院 | A kind of large-scale determination of six components of foree and varied angle support means |
| CN104316288B (en) * | 2014-08-26 | 2018-02-23 | 中国直升机设计研究所 | A kind of rotor model.test system large-tonnage rotor balances lift and moment of flexure caliberating device |
| CN105171643B (en) * | 2015-09-24 | 2018-01-09 | 四川野马汽车股份有限公司 | A kind of engine loads positioner |
| DK179408B1 (en) * | 2016-11-18 | 2018-06-06 | Ngi As | Locking device for transport protection of leveling unit with integrated weighing cell |
| CN206772550U (en) * | 2016-12-29 | 2017-12-19 | 中国航天空气动力技术研究院 | A kind of direct force balance protection device of engine |
| US10641307B2 (en) * | 2017-02-20 | 2020-05-05 | The Boeing Company | Radiused lead-in for interference fit fasteners |
| CN111256942B (en) * | 2020-04-27 | 2020-08-18 | 北京清航紫荆装备科技有限公司 | Unmanned helicopter rotor balance |
-
2020
- 2020-09-25 CN CN202011020458.5A patent/CN112173167B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06114649A (en) * | 1992-10-01 | 1994-04-26 | Kanto Auto Works Ltd | Nut runner locating method |
| EP1191244A1 (en) * | 2000-09-26 | 2002-03-27 | Reliance Electric Technologies, LLC | Positive Lock for bearing subassembly and adjusting nut kit |
| WO2007022998A1 (en) * | 2005-08-26 | 2007-03-01 | Airbus Deutschland Gmbh | Linear actuating organ, in particular for the remote actuation of displaceable components in wind tunnel models |
| JP4710089B1 (en) * | 2010-06-03 | 2011-06-29 | イイファス株式会社 | Locking washer and locking fastener using the same |
| WO2018121399A1 (en) * | 2016-12-29 | 2018-07-05 | 上海蔚来汽车有限公司 | Circumferential locking mechanism and battery locking device comprising same, power battery pack, and vehicle |
| CN207064024U (en) * | 2017-07-31 | 2018-03-02 | 中国航发商用航空发动机有限责任公司 | Locking anti-loosening device and aeroengine rotor fastening system |
| CN207570752U (en) * | 2017-11-16 | 2018-07-03 | 中国空气动力研究与发展中心高速空气动力研究所 | A kind of anti-impact device applied to balance in intermittent wind tunnel |
| CN109774968A (en) * | 2019-01-22 | 2019-05-21 | 南京航空航天大学 | A kind of shaft part and support adjustable multi-bearing rotor testing stand |
| CN210196220U (en) * | 2019-07-18 | 2020-03-27 | 厦门巨林仪器有限公司 | Lock pipe connecting piece and scale |
Non-Patent Citations (2)
| Title |
|---|
| 应用结构动力学模型进行弹翼静强度计算;宋彦国等;《上海航天》;20000425(第02期);全文 * |
| 盒式天平装配应力对测量结果的影响研究;乔迁等;《弹箭与制导学报》;20160815(第04期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112173167A (en) | 2021-01-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112173167B (en) | Box-type balance safety locking device | |
| US7823820B2 (en) | Inner shell intended for a gyratory crusher, and method of attaching such a shell on a crushing head | |
| KR20110063750A (en) | Horizontally and vertically adjustable bearing | |
| CN108680191B (en) | Device for monitoring loosening of bolt | |
| US4844418A (en) | Short stud tensioning apparatus | |
| CN202660169U (en) | Adjustable-type centring foot | |
| CN103967914A (en) | Safety nut device | |
| CN210068713U (en) | Screw structure for preventing nut from slipping | |
| CN112161730A (en) | Pressure sensor and protective sleeve structure | |
| CN109751455B (en) | Suspension device with composite function | |
| DE1063426B (en) | Adjusting device for machines | |
| KR200481559Y1 (en) | Prevent separating device for hammer wrench | |
| US6077008A (en) | Safety device for preloaded bolts | |
| CN204657889U (en) | A kind of assemble mechanism of highway mine truck front-wheel lining | |
| CN214698646U (en) | Fastener structure convenient to dismantle | |
| CN214031489U (en) | Torsion resisting device on building tower crane | |
| CN215733431U (en) | Signal intelligent overvoltage protection device | |
| CN104677616B (en) | Stop limiting and monitoring device for large-sized flywheel | |
| CN105173951B (en) | A kind of elevator workalike prevents device | |
| CN205099131U (en) | Elevator workalike prevents device | |
| CN211517380U (en) | Disassembling clamp for fixing screws of cover plate of bleed port of engine shell | |
| CN213946081U (en) | Convenient mounting structure of emery wheel for grinding machine | |
| CN114517804B (en) | Device capable of effectively preventing bolt from being broken due to fatigue damage | |
| CN210452325U (en) | Rotary portal frame | |
| CN213575066U (en) | Locking shell fragment lock nut that moves |
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 |