CN114111530A - Variable-pitch pull rod goniometer - Google Patents
Variable-pitch pull rod goniometer Download PDFInfo
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- CN114111530A CN114111530A CN202111382054.5A CN202111382054A CN114111530A CN 114111530 A CN114111530 A CN 114111530A CN 202111382054 A CN202111382054 A CN 202111382054A CN 114111530 A CN114111530 A CN 114111530A
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- Prior art keywords
- connecting rod
- lower connecting
- variable
- upper connecting
- rod
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/24—Measuring arrangements characterised by the use of mechanical techniques for measuring angles or tapers; for testing the alignment of axes
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A90/00—Technologies having an indirect contribution to adaptation to climate change
- Y02A90/10—Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
- Length-Measuring Instruments Using Mechanical Means (AREA)
Abstract
The invention provides a variable-pitch pull rod goniometer, which comprises: the dial plate comprises a clamping ring (1), a lower connecting rod (3), a dial plate (4), a pointer (5), an upper connecting rod (6) and a face measuring block (7); the clamping ring (1) is sleeved on the rod body of the variable-pitch pull rod, the first end of the lower connecting rod (3) is connected with the clamping ring (1), and the lower connecting rod (3) is arranged in parallel with the rod body of the variable-pitch pull rod; the second end of the lower connecting rod (3) is connected with the first end of the upper connecting rod (6), the upper connecting rod (6) is coaxial with the lower connecting rod (3), the upper connecting rod (6) can axially rotate, the second end of the upper connecting rod (6) is fixedly connected with a face measuring block (7), and the binding face of the face measuring block (7) is bound with the bearing face of the variable-pitch pull rod; a dial (4) is fixedly arranged at the second end of the lower connecting rod (3), and a pointer (5) is fixedly arranged at the first end of the upper connecting rod (6). The detection of the installation angle on the machine when the bearing surfaces of the variable-pitch pull rods are attached is realized.
Description
Technical Field
The invention belongs to the aviation technology, and particularly relates to a variable-pitch pull rod goniometer.
Background
When the variable-pitch pull rod is installed, the positioning tool precision of the bearing with the handle is poor, and the angle of the bearing with the handle of the variable-pitch pull rod exceeds the standard, so that the variable-pitch pull rod and the fixed ring are easily abraded.
However, the installation angle of the existing variable pitch pull rod on the machine cannot be detected, the variable pitch pull rod can only be detected on the ground after being disassembled, the deviation of the installation size after detection usually reaches 5-10 degrees, and even if the variable pitch pull rod is corrected and remounted, the variable pitch pull rod cannot reach the design angle due to poor precision of a positioning tool.
Disclosure of Invention
The invention provides a variable-pitch pull rod goniometer which can realize the detection of the on-machine installation angle of a variable-pitch pull rod.
The invention provides a variable-pitch pull rod goniometer, which comprises: the dial plate comprises a clamping ring 1, a lower connecting rod 3, a dial plate 4, a pointer 5, an upper connecting rod 6 and a face measuring block 7; wherein the content of the first and second substances,
the clamping ring 1 is sleeved on a rod body of the variable-pitch pull rod, the first end of the lower connecting rod 3 is connected with the clamping ring 1, and the lower connecting rod 3 is arranged in parallel with the rod body of the variable-pitch pull rod;
the second end of the lower connecting rod 3 is connected with the first end of the upper connecting rod 6, the upper connecting rod 6 is coaxial with the lower connecting rod 3, the upper connecting rod 6 can axially rotate, the second end of the upper connecting rod 6 is fixedly connected with the face measuring block 7, and the binding face of the face measuring block 7 is bound with the bearing face of the variable-pitch pull rod;
a dial 4 is fixedly arranged at the second end of the lower connecting rod 3, and a pointer 5 is fixedly arranged at the first end of the upper connecting rod 6.
Optionally, the angle measurement further includes: a pin shaft 2;
a bulge is arranged on one side of the clamping ring 1, and a rotating hole is formed in the bulge;
the first end of the lower connecting rod 3 is fixedly connected with the pin shaft 2, the pin shaft 2 penetrates through the rotating hole and can rotate around the shaft of the rotating hole to drive the lower connecting rod 3 to rotate.
Optionally, a second end of the lower connecting rod 3 is provided with a first groove;
Optionally, a second boss is arranged on one surface of the dial 4 facing the upper connecting rod 6;
a second groove is formed in the first end of the upper connecting rod 6; the second boss is in clearance fit with the second groove.
Optionally, the first end of the upper connecting rod 6 is further provided with a third groove, the pointer 5 is clamped in the third groove and sleeved on the second boss, and the pointer 5 is in clearance fit with the second boss.
Optionally, the face-measuring block 7 includes a fixing portion 71 and an expansion portion 72;
the fixed part 71 is fixedly connected to the second end of the upper connecting rod 6, and the telescopic part 72 is telescopically connected with the fixed part 71, so that the length of the face measuring block 7 can be adjusted.
Optionally, the telescopic portion 72 is a magnetic element for magnetically attracting to a bearing surface of the pitch link.
Optionally, the fixing portion 71 is provided with a sliding groove for the telescopic portion 72 to slide and a cavity for accommodating the telescopic portion 72.
The invention provides a variable-pitch pull rod goniometer, which comprises: the dial plate comprises a clamping ring 1, a lower connecting rod 3, a dial plate 4, a pointer 5, an upper connecting rod 6 and a face measuring block 7; the clamping ring 1 is sleeved on the rod body of the variable-pitch pull rod, the first end of the lower connecting rod 3 is connected with the clamping ring 1, and the lower connecting rod 3 is arranged in parallel with the rod body of the variable-pitch pull rod; the second end of the lower connecting rod 3 is connected with the first end of the upper connecting rod 6, the upper connecting rod 6 is coaxial with the lower connecting rod 3, the upper connecting rod 6 can axially rotate, the second end of the upper connecting rod 6 is fixedly connected with a surface measuring block 7, and the binding surface of the surface measuring block 7 is bound with the bearing surface of the variable-pitch pull rod; a dial 4 is fixedly arranged on the second end of the lower connecting rod 3, and a pointer 5 is fixedly arranged on the first end of the upper connecting rod 6. The different surfaces of the bearings with handles at the two ends of the variable-pitch pull rod have the characteristic of rotating around the axial direction of the rod body, the telescopic technology and the magnetic attraction technology are adopted, the dial plate 4 and the pointer 5 are additionally arranged in the connecting rod system which is axially parallel to the variable-pitch pull rod, the detection of the on-machine installation angle when the bearing surfaces of the variable-pitch pull rod are attached is realized, and the problems of the fixed ring and the variable-pitch pull rod caused by the out-of-tolerance of the on-machine installation angle of the variable-pitch pull rod are avoided.
Drawings
FIG. 1 is an axial view of a pitch link goniometer provided by the present invention;
FIG. 2 is a front view of a pitch link goniometer provided by the present invention;
FIG. 3 is a side view of a pitch link goniometer provided by the present invention;
FIG. 4 is a top view of a pitch link goniometer provided by the present invention;
description of reference numerals:
1-a snap ring;
2-a pin shaft;
3-a lower connecting rod;
4-dial plate;
5-a pointer;
6-upper connecting rod;
7-measuring the flour piece;
71-a stationary part;
72-telescoping section.
Detailed Description
The following explains the variable pitch pull rod goniometer provided by the invention with reference to the accompanying drawings.
Fig. 1 is an axial view of a pitch link goniometer provided by the present invention, fig. 2 is a front view of the pitch link goniometer provided by the present invention, fig. 3 is a side view of the pitch link goniometer provided by the present invention, fig. 4 is a top view of the pitch link goniometer provided by the present invention, as shown in fig. 1-4, the present invention provides a pitch link goniometer for onboard measurement of angular dimensions of a handled bearing of a pitch link, comprising: the device comprises a clamping ring 1, a pin shaft 2, a lower connecting rod 3, a dial 4, a pointer 5, an upper connecting rod 6 and a face measuring block 7; wherein, snap ring 1 is connected with lower connecting rod 3 with round pin axle 2, relates to dial plate 4 boss and 3 recess interference fit fixed connection of lower connecting rod, and design 5 bosses of pointer and 6 recess interference fit fixed connection of upper connecting rod, but design side piece 7 and upper connecting rod 6 bolted connection, the scalable regulation of fixed part 71 length in the design side piece 7.
Further:
(1) the snap ring 1 is provided with two lug pieces, and a through hole is designed on the left lug piece and is connected with the variable-pitch pull rod body through bolt fastening. The right lug is provided with a through hole which is fixedly connected with the lower connecting rod 3 through a pin shaft 2, and the pin shaft 2 penetrates through the rotating hole and can rotate around the shaft of the rotating hole to drive the lower connecting rod 3 to rotate.
(2) The lower connecting rod 3 is arranged in parallel with the rod body of the variable-pitch pull rod, and the end face of the first end of the lower connecting rod 3 and the lower end face of the clamping ring 1 are in the same plane.
(3) A first groove is formed in the second end of the lower connecting rod 3, and a first boss of one surface, facing the lower connecting rod 3, of the dial plate 4 is in interference fit in the groove;
(4) a second boss is arranged on one surface of the dial 4 facing the upper connecting rod 6, and the second boss is in clearance fit with a second groove at the first end of the upper connecting rod 6;
(5) the first end of the upper connecting rod 6 is also provided with a third groove, the pointer 5 is clamped in the third groove and sleeved on a second boss of the dial 4, and the pointer 5 is in clearance fit with the second boss.
(6) The fixed part 71 is fixedly connected to the groove at the second end of the upper connecting rod 6, and the telescopic part 72 is telescopically connected with the fixed part 71 to realize that the length of the face measuring block 7 is adjustable.
(7) The fixing portion 71 is provided with a sliding groove for the telescopic portion 72 to slide and a cavity for accommodating the telescopic portion 72.
(8) The fixing portion 72 is provided with a magnetic element capable of magnetically attracting the bearing attachment surface of the tape handle.
The invention mainly utilizes a variable-pitch pull rod bearing to adjust, mainly rotates around a central shaft, and designs a rotatable and telescopically adjustable variable-pitch pull rod goniometer.
The body of rod of snap ring 1 entangle the displacement pull rod after fixed with round pin axle 2, around round pin axle 2 the central line rotatory connecting rod 6, down the connecting rod 3 position place vertical position after, the accessible is rotatory to be gone up connecting rod 3 and is aimed at, carries out length through the fixed part 71 of side piece and stretches out and draws back.
The inner ring in the clamping ring 1 can be used for being fixedly connected with the variable-pitch pull rod; the pin shaft 2 and the lower connecting rod 3 can realize the two-dimensional space rotation of the goniometer; a fixing portion 71 of the side block 7, which can telescopically adjust the size of the space; the dial 4 and the pointer 5 can realize the angle measurement of the bearing surface of the variable-pitch pull rod; the fixed part 71 of the side block 7 can realize the angle measurement of two-dimensional space; the telescoping portion 72 in the side block 7 may be magnetically attached to the variable pitch tie rod bearing surface.
The goniometer provided by the invention has the following use process:
overlap the snap ring 1 inner circle on the displacement pull rod body of rod and through screwing up the bolt fastening, go up connecting rod 3 through round pin axle and snap ring 1 fastening connection, guarantee to go up connecting rod 3 and displacement pull rod body of rod axial direction parallel, connecting rod 6 in the back rotation, make side 7 and the first end bearing surface magnetism laminating of displacement pull rod, the laminating area of side 71 and displacement pull rod bearing surface is adjusted to accessible regulation side piece pars contractilis 72, because of pointer 5 and 6 interference fit of last connecting rod, record the relative dial plate 4's of pointer 5 angle size 1 this moment.
Unscrewing round pin axle connected mode, it is rotatory along round pin axle two-dimensional space with upper connecting rod 3, guarantee upper connecting rod 3 and displacement pull rod body of rod axial direction parallel, back rotation upper connecting rod 6, make side 7 and the bearing surface magnetism laminating of displacement pull rod, the laminating area of side 71 and displacement pull rod second end bearing surface is adjusted to accessible regulation side piece pars contractilis 72, the relative dial plate 4's of record pointer 5 angle size 2 this moment, can know the angle size of displacement pull rod both ends bearing surface through the difference of angle size 1 and angle size 2. After the measurement is finished, the bolt for connecting the snap ring 1 with the variable-pitch pull rod body is unscrewed, and the variable-pitch pull rod measuring instrument can be disassembled.
Claims (8)
1. A pitch-variable pull rod goniometer is characterized by comprising: the dial plate comprises a clamping ring (1), a lower connecting rod (3), a dial plate (4), a pointer (5), an upper connecting rod (6) and a face measuring block (7); wherein the content of the first and second substances,
the clamping ring (1) is sleeved on the rod body of the variable-pitch pull rod, the first end of the lower connecting rod (3) is connected with the clamping ring (1), and the lower connecting rod (3) is arranged in parallel with the rod body of the variable-pitch pull rod;
the second end of the lower connecting rod (3) is connected with the first end of the upper connecting rod (6), the upper connecting rod (6) is coaxial with the lower connecting rod (3), the upper connecting rod (6) can axially rotate, the second end of the upper connecting rod (6) is fixedly connected with the face measuring block (7), and the binding face of the face measuring block (7) is bound with the bearing face of the variable-pitch pull rod;
a dial (4) is fixedly arranged at the second end of the lower connecting rod (3), and a pointer (5) is fixedly arranged at the first end of the upper connecting rod (6).
2. The goniometer of claim 1, further comprising: a pin shaft (2);
a bulge is arranged on one side of the clamping ring (1), and a rotating hole is formed in the bulge;
the first end of the lower connecting rod (3) is fixedly connected with the pin shaft (2), the pin shaft (2) penetrates through the rotating hole and can rotate around the shaft of the rotating hole to drive the lower connecting rod (3) to rotate.
3. Goniometer according to claim 1, characterized in that the second end of the lower connecting rod (3) is provided with a first groove;
dial plate (4) orientation be provided with first boss on the one side of lower connecting rod (3), first boss with first recess interference fit.
4. Goniometer according to claim 3, characterized in that a second boss is provided on the face of the dial (4) facing the upper connecting rod (6);
a second groove is formed in the first end of the upper connecting rod (6); the second boss is in clearance fit with the second groove.
5. The goniometer according to claim 4, characterized in that the first end of the upper connecting rod (6) is further provided with a third groove, the pointer (5) is clamped in the third groove and sleeved on the second boss, and the pointer (5) is in clearance fit with the second boss.
6. Goniometer according to claim 1, characterized in that the side block (7) comprises a fixed part (71) and a telescopic part (72);
fixed part (71) fixed connection be in on the second end of last connecting rod (6), pars contractilis (72) with fixed part (71) telescopic connection realizes the length adjustable of side test piece (7).
7. Goniometer according to claim 6, characterized in that the telescoping part (72) is a magnetic element for magnetic attraction on the bearing surface of the pitch link.
8. The goniometer according to claim 6, characterized in that the fixing portion (71) is provided with a sliding groove for sliding the telescopic portion (72) and a cavity for receiving the telescopic portion (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111382054.5A CN114111530B (en) | 2021-11-19 | 2021-11-19 | Pitch-variable pull rod goniometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111382054.5A CN114111530B (en) | 2021-11-19 | 2021-11-19 | Pitch-variable pull rod goniometer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114111530A true CN114111530A (en) | 2022-03-01 |
| CN114111530B CN114111530B (en) | 2023-09-01 |
Family
ID=80396919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111382054.5A Active CN114111530B (en) | 2021-11-19 | 2021-11-19 | Pitch-variable pull rod goniometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114111530B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003040040A (en) * | 2001-07-30 | 2003-02-13 | Jeco Co Ltd | Pole driving apparatus |
| CN109533290A (en) * | 2018-11-15 | 2019-03-29 | 中国直升机设计研究所 | A kind of pitch-change-link angle positioning device |
| CN110979651A (en) * | 2019-12-24 | 2020-04-10 | 苏州韬讯航空科技有限公司 | Coaxial helicopter and control method |
| CN111044001A (en) * | 2019-12-25 | 2020-04-21 | 中国人民解放军陆军航空兵学院陆军航空兵研究所 | Measuring device |
| CN112441219A (en) * | 2020-11-26 | 2021-03-05 | 尚良仲毅(沈阳)高新科技有限公司 | A displacement device and unmanned aerial vehicle for unmanned aerial vehicle |
| CN214690171U (en) * | 2020-10-27 | 2021-11-12 | 北京清航紫荆装备科技有限公司 | Automatic inclinator of helicopter and unmanned helicopter with same |
-
2021
- 2021-11-19 CN CN202111382054.5A patent/CN114111530B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003040040A (en) * | 2001-07-30 | 2003-02-13 | Jeco Co Ltd | Pole driving apparatus |
| CN109533290A (en) * | 2018-11-15 | 2019-03-29 | 中国直升机设计研究所 | A kind of pitch-change-link angle positioning device |
| CN110979651A (en) * | 2019-12-24 | 2020-04-10 | 苏州韬讯航空科技有限公司 | Coaxial helicopter and control method |
| CN111044001A (en) * | 2019-12-25 | 2020-04-21 | 中国人民解放军陆军航空兵学院陆军航空兵研究所 | Measuring device |
| CN214690171U (en) * | 2020-10-27 | 2021-11-12 | 北京清航紫荆装备科技有限公司 | Automatic inclinator of helicopter and unmanned helicopter with same |
| CN112441219A (en) * | 2020-11-26 | 2021-03-05 | 尚良仲毅(沈阳)高新科技有限公司 | A displacement device and unmanned aerial vehicle for unmanned aerial vehicle |
Non-Patent Citations (2)
| Title |
|---|
| 李登安 等: "一种小型无人直升机振动调试方法研究", 《中国高新科技》 * |
| 王泽峰等: "基于实测载荷的直升机变距拉杆损伤计算方法研究", 《航空科学技术》 * |
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| Publication number | Publication date |
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| CN114111530B (en) | 2023-09-01 |
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