CN211978301U - High-precision fatigue test tool - Google Patents
High-precision fatigue test tool Download PDFInfo
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- CN211978301U CN211978301U CN202020691555.6U CN202020691555U CN211978301U CN 211978301 U CN211978301 U CN 211978301U CN 202020691555 U CN202020691555 U CN 202020691555U CN 211978301 U CN211978301 U CN 211978301U
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Abstract
A high-precision fatigue test tool comprises a single-lug piece, a double-lug piece, a distance adjusting block, a fixing block and a bolt fastening assembly, wherein the single-lug piece is provided with a first shaft hole; the double-lug piece and the single-lug piece are inserted oppositely and are provided with second shaft holes which can be coaxial with the first shaft holes; the distance adjusting block is detachably connected to the double-lug piece, a third shaft hole, a limiting groove and a distance adjusting groove are formed in the distance adjusting block, and the limiting groove and the distance adjusting groove are respectively communicated with the third shaft hole and are respectively positioned at two ends of the third shaft hole; the distance adjusting groove faces to the double-lug piece; the fixing block is detachably covered on the limiting groove of the distance adjusting block, and a through hole corresponding to the third shaft hole is formed in the fixing block; the bolt fastening assembly is used for detachably connecting the distance adjusting block, the fixing block and the double-lug piece together. The utility model discloses a distance regulating block agrees with the lockpin in the different operating modes of in-service use in-process, under different in service behavior, can select not unidimensional distance regulating block to test, therefore it can improve fatigue test's precision greatly.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a test fixture, in particular to high accuracy fatigue test frock.
[ background of the invention ]
With the continuous development of aviation technology, the requirements of aviation structural parts are higher and higher. The tail beam folding and locking device has the characteristics of light weight, small size, convenience in operation, simplicity in maintenance, long service life and the like, and is widely used in helicopters. Before the tail beam folding and locking device is delivered for use, the tail beam folding and locking device needs to be subjected to factory detection, and qualified products can be put into use. The tail beam folding and locking device needs to detect whether the fatigue strength of the upper lock pin and the lower lock pin meets the design requirements. Due to the limitation of the volume of the tail beam folding and locking device, the product cannot be integrally installed on a fatigue testing machine, and only the lock pin of the tail beam folding and locking device can be subjected to fatigue test independently. If only the upper and lower lockpins are tested without limiting the use conditions of the lockpins, the real use condition cannot be simulated, and the requirement of test precision cannot be met. Therefore, a novel fatigue test tool capable of simulating the actual use working condition of the lock pin is urgently needed so as to meet the precision requirement of the fatigue test.
[ Utility model ] content
The utility model aims at solving the above problem, and provide a can solve the folding locking device lockpin fatigue test high accuracy fatigue test frock of tail boom problem.
In order to solve the problems, the utility model provides a high-precision fatigue test tool which is characterized by comprising a single-lug piece, a double-lug piece, a distance adjusting block, a fixed block and a bolt fastening assembly, wherein the single-lug piece is provided with a first shaft hole; the double-lug piece and the single-lug piece are inserted oppositely and are provided with second shaft holes which can be coaxial with the first shaft holes; the distance adjusting block is detachably connected to the double-lug piece, a third shaft hole, a limiting groove and a distance adjusting groove are formed in the distance adjusting block, and the limiting groove and the distance adjusting groove are respectively communicated with the third shaft hole and are respectively located at two ends of the third shaft hole; the distance adjusting groove faces the double-lug piece; the fixed block is detachably covered on the limiting groove of the distance adjusting block, and a through hole corresponding to the third shaft hole is formed in the fixed block; the bolt fastening assembly is used for detachably connecting the distance adjusting block, the fixing block and the double-lug piece together.
Furthermore, the distance adjusting block is in a block shape, the distance adjusting groove is a straight through groove, and the distance adjusting groove is concavely formed on one side surface of the distance adjusting block and penetrates through two ends of the distance adjusting block; the limiting groove is an annular groove and is formed on the surface of one side, opposite to the distance adjusting groove, of the distance adjusting block in a recessed mode; the limiting groove and the third shaft hole form a stepped hole.
Further, the through hole is a U-shaped hole.
Further, the double-lug piece comprises a second thread connecting portion and a double-lug portion, the second thread connecting portion is integrally formed or integrally connected with the double-lug portion, the double-lug portion is arranged on the end portion of the second thread connecting portion, the double-lug portion is parallelly spaced to form an insertion space, and the double-lug portion is respectively provided with the second shaft holes.
Further, single ear spare includes first threaded connection portion and single ear portion, first threaded connection portion with single ear portion integrated into one piece or body coupling, single ear portion is located on the tip of first threaded connection portion, single ear portion can insert in the cartridge space between the two ear portions be equipped with in the single ear portion first shaft hole.
Further, the first shaft hole and the second shaft hole are perpendicular to the first threaded connection portion and the second threaded connection portion.
Further, when the first shaft hole and the second shaft hole are coaxial, the first threaded connection portion and the second threaded connection portion are in a coaxial state.
Furthermore, a plurality of internal thread holes are formed in the double-lug part facing the distance adjusting block, a plurality of first bolt mounting holes corresponding to the internal thread holes are formed in the distance adjusting block, and a plurality of second bolt mounting holes corresponding to the first bolt mounting holes are formed in the fixing block; the bolt fastening assembly comprises a bolt, a gasket and a self-locking nut, wherein the gasket and the self-locking nut are connected to the end part of the bolt; the bolt sequentially penetrates through the second bolt mounting hole and the first bolt mounting hole to be in threaded connection with the internal threaded hole; the gasket and the self-locking nut are respectively connected to the end or the near end part of the bolt facing the fixed block, so that the fixed block, the distance adjusting block and the double lug parts can be tightly connected together.
Furthermore, the internal thread holes are distributed on the periphery of the second shaft hole, the first bolt mounting holes are distributed on the periphery of the limiting groove, and the second bolt mounting holes are distributed on the periphery of the through hole.
The beneficial contributions of the utility model reside in that, it has effectively solved above-mentioned problem. The utility model discloses a high accuracy fatigue test frock, its simple structure, simple to operate, it is not only convenient to carry out fatigue test to the lockpin of the folding locking device of tail-boom, can simulate the in-service use operating mode moreover and test in order to improve experimental precision. The utility model discloses a distance regulating block agrees with the lockpin in the different operating modes of in-service use in-process, and under the operating mode of different in service behavior, the optional not unidimensional distance regulating block of using tests, therefore its precision that can improve fatigue test greatly. The utility model has the characteristics of simple structure, functional practicality, convenient to use etc, it has very strong practicality, should widely popularize.
[ description of the drawings ]
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is an exploded view of the present invention.
Fig. 3 is a structural sectional view of the present invention.
The single-lug piece 10, the first threaded connection part 11, the single-lug part 12, the first shaft hole 13, the double-lug piece 20, the second threaded connection part 21, the double-lug part 22, the first lug part 221, the second lug part 222, the insertion space 223, the second shaft hole 23, the internal threaded hole 24, the distance adjusting block 30, the third shaft hole 31, the distance adjusting groove 32, the limiting groove 33, the first bolt mounting hole 34, the fixing block 40, the through hole 41, the second bolt mounting hole 42, the bolt fastening component 50, the bolt 51, the gasket 52, the self-locking nut 53, the lock pin 60 and the convex edge 61.
[ detailed description ] embodiments
The following examples are further to explain and supplement the present invention, and do not constitute any limitation to the present invention.
As shown in fig. 1 to 3, the high-precision fatigue test tool of the present invention includes a single-lug element 10, a double-lug element 20, a distance adjusting block 30, a fixing block 40, and a bolt fastening assembly 50. The single-lug piece 10 and the double-lug piece 20 are inserted and connected, and are respectively provided with a first shaft hole 13 and a second shaft hole 23 which can be coaxially inserted with a lock pin 60, the single-lug piece 10 and the double-lug piece 20 form a rotary connection through the lock pin 60, and the rotary connection is used for simulating two parts connected in the actual use process of the lock pin 60 so as to simulate the actual application; the distance adjusting block 30 is used for adapting to the actual use working condition of the part to be tested, is a replaceable part, and can be selected to have different sizes to meet different part testing requirements; the fixing block 40 is used for limiting the part to be tested by matching with the distance adjusting block 30, and preventing the part to be tested from moving axially and falling off.
Specifically, as shown in fig. 1 to 3, the binaural 20 includes a second threaded connection portion 21 and a binaural portion 22. The second threaded connection portion 21 and the double lug portions 22 are integrally formed or integrally connected. In this embodiment, the second threaded connection portion 21 and the double lug portion 22 are integrally formed. The second threaded connection portion 21 is provided with an external thread, and the external thread is used for being in threaded connection with an existing fatigue testing machine so as to install the double-lug piece 20 on the existing fatigue testing machine. The double ears 22 are formed on the end surface of the second threaded portion 21, and extend in the axial direction of the second threaded portion 21. The double ear portion 22 comprises a first ear portion 221 and a second ear portion 222, wherein the first ear portion 221 and the second ear portion 222 are spaced in parallel, and an insertion space 223 for inserting the single ear piece 10 is formed therebetween. The distance between the first ear 221 and the second ear 222 can be set according to the requirement. In this embodiment, the first lug portion 221 and the second lug portion 222 are flat plates, and are parallel to the axial direction of the second threaded portion 21; and the first lug part 221 and the second lug part 222 are evenly offset on two sides of the axis of the second threaded connection part 21. Second shaft holes 23 are respectively formed in the double lug portions 22, namely the first lug portion 221 and the second lug portion 222. The second shaft hole 23 is used for inserting a lock pin 60 as a part to be tested. The second shaft hole 23 is perpendicular to the axial direction of the second threaded connection 21. The size of the second shaft hole 23 can be set according to the size of the part to be tested. The position of the second shaft hole 23 can be set according to requirements, and in this embodiment, the second shaft hole 23 is set at the central position of the first ear part 221 and the second ear part 222.
As shown in fig. 1 to 3, the single-lug element 10 includes a first threaded connection portion 11 and a single lug portion 12. The first threaded connection portion 11 and the single ear portion 12 are integrally formed or integrally connected. In this embodiment, the first threaded connection portion 11 and the single ear portion 12 are integrally formed. The first threaded connection portion 11 is provided with an external thread, and is used for being in threaded connection with an existing fatigue testing machine so as to install the single lug piece 10 on the existing fatigue testing machine. The single lug portion 12 is formed on an end surface of the first threaded portion 11, and extends in the axial direction of the first threaded portion 11. The single lug part 12 is arranged on the end face of the first threaded connection part 11 in the center. The thickness of the single ear 12 should be no greater than the distance separating the first ear 221 and the second ear 222 from the double ear 22. A first shaft hole 13 is provided on the single ear 12. The first shaft hole 13 is used for inserting a lock pin 60 which is a part to be tested. The first shaft hole 13 is perpendicular to the axial direction of the first threaded connection 11. The size of the first shaft hole 13 can be set according to the size of the part to be tested, and in this embodiment, the size of the first shaft hole 13 is the same as that of the second shaft hole 23.
As shown in fig. 1 to 3, when the single lug 12 of the single lug 10 is inserted into the insertion space 223 of the double lug 20, the first shaft hole 13 may correspond to the second shaft hole 23, and the first threaded connection portion 11 and the second threaded connection portion 21 are in a coaxial state, so that the lock pin 60, which is a part to be tested, may be inserted into the first shaft hole 13 and the second shaft hole 23 for fatigue testing.
As shown in fig. 1 to 3, in order to meet the requirements of working condition tests under different use conditions, a detachable distance adjusting block 30 is provided on the binaural 20.
As shown in fig. 1 to 3, the distance adjustment block 30 is in the shape of a block, and the specific shape thereof is not limited. A third shaft hole 31 is arranged on the distance adjusting block 30; the third shaft hole 31 is used for inserting a locking pin 60 which is a part to be tested. The size of the third shaft hole 31 can be set according to the size of the part to be tested, and in this embodiment, the size of the third shaft hole 31 is the same as that of the second shaft hole 23.
In the actual use process of the lock pin 60 of the tail boom folding and locking device, when the lock pin is extended to the maximum length, the convex edge 61 of the lock pin is attached to the gasket, and the gasket is spaced from the part to be connected, so that, in order to simulate the actual working condition, as shown in fig. 1 to 3, a distance adjusting groove 32 is formed on one side surface of the distance adjusting block 30. The distance adjusting groove 32 is formed on a surface of one side of the distance adjusting block 30 in a recessed manner, is a straight through groove, penetrates through both ends of the distance adjusting block 30, and penetrates through the third shaft hole 31. The third shaft hole 31 is located at the center of the distance adjustment groove 32. The depth of the distance adjusting groove 32 is set according to the distance between the gasket and the part to be connected; the thickness of the distance adjusting block 30 is set according to the actual distance between the convex edge 61 and the part to be connected when the convex edge is at the most extreme position. The thickness of the distance adjustment block 30 and the depth of the distance adjustment groove 32 may be different for different models of tail boom fold-lock devices, which are set according to the corresponding models of the lock pins 60. When different types of lock pins 60 are tested, the distance adjusting block 30 with the corresponding size is selected to be installed.
As shown in fig. 1 to 3, in order to limit the axial movement of the lock pin 60, which is a part to be tested, along the first shaft hole 13 and the second shaft hole 23 for facilitating the test, a limiting groove 33 is disposed on a side of the distance adjusting block 30 opposite to the distance adjusting groove 32, and a fixing block 40 capable of being covered is disposed at the limiting groove 33.
As shown in fig. 1 to 3, the limiting groove 33 is an annular groove, and is concavely formed on a surface of the distance adjusting block 30 opposite to the distance adjusting groove 32, and is penetrated through the third shaft hole 31. In other words, the stopper groove 33 and the distance adjustment groove 32 are respectively located on opposite side surfaces of the distance adjustment block 30, and are both penetrated through the third shaft hole 31. The limiting groove 33 and the third shaft hole 31 form a stepped hole which can limit the lock pin 60 to move axially along the direction of the double-lug piece 20. The depth of the limiting groove 33 is consistent with the thickness of the convex edge 61 of the lock pin 60; when the lock pin 60 is inserted into the third shaft hole 31, the convex edge 61 of the lock pin 60 is embedded in the limiting groove 33, and the surface of the convex edge 61 is flush with the surface of the distance adjusting block 30.
As shown in fig. 1 to 3, the fixing block 40 is adapted to cover the limiting groove 33 to limit the axial movement of the locking pin 60. The fixing block 40 is plate-shaped, and the specific shape thereof is not limited. The peripheral dimension of the fixing block 40 should be larger than the dimension of the limiting groove 33, so that the fixing block can cover the surface of the distance adjusting block 30 and limit the convex edge 61 in the limiting groove 33. The fixing block 40 is provided with a through hole 41 penetrating through the lock pin 60, and the through hole 41 has a size capable of conveniently penetrating through the lock pin 60 but incapable of penetrating through the convex edge 61 of the lock pin 60. In this embodiment, the through hole 41 is a U-shaped hole, which facilitates alignment installation.
As shown in fig. 1 to 3, in order to facilitate the disassembly and assembly for performing fatigue tests on different parts to be tested, the distance adjusting block 30 and the fixing block 40 are detachably mounted on the second ear portion 222 of the two-ear piece 20 by a bolt fastening assembly 50. The bolt fastening assembly 50 includes a bolt 51, a washer 52, and a self-locking nut 53. The bolt 51 is a headless bolt provided with an external thread. The washer 52 may be sleeved on the bolt 51, and the self-locking nut 53 may be screwed on the bolt 51.
As shown in fig. 1 to 3, in order to facilitate the disassembly and assembly, a plurality of female screw holes 24 for screwing the bolts 51 are provided on the double ears 22. The distance adjusting block 30 is provided with a plurality of first bolt mounting holes 34, and the fixing block 40 is provided with a plurality of second bolt mounting holes 42. The first bolt mounting hole 34 and the second bolt mounting hole 42 are through holes without screw threads. The internal screw holes 24 are distributed on the periphery of the second shaft hole 23, the first bolt mounting holes 34 are distributed on the periphery of the third shaft hole 31, and the second bolt mounting holes 42 are distributed on the periphery of the through holes 41. In this embodiment, the first bolt mounting hole 34 is disposed on the second ear 222, and is parallel to the second shaft hole 23.
As shown in fig. 1 to 3, during assembly, the bolt 51 may sequentially pass through the second bolt mounting hole 42 and the first bolt mounting hole 34 to be screwed with the internal threaded hole 24, and then, the spacer 52 and the self-locking nut 53 are respectively connected to the end portions of the bolt 51, so that the distance adjusting block 30 and the fixing block 40 may be detachably assembled to the second ear portion 222 of the binaural 20, and the second shaft hole 23 and the third shaft hole 31 may be coaxial.
By this, just formed the utility model discloses a high accuracy fatigue test frock. When the fatigue testing machine is used, the single-lug piece 10 and the double-lug piece 20 are respectively arranged on the fatigue testing machine, and the first shaft hole 13 and the second shaft hole 23 are ensured to be aligned; then, the distance adjusting block 30 is sleeved on a lock pin 60 which is a part to be tested, and then the lock pin 60 is inserted into the first shaft hole 13 and the second shaft hole 23, so that the distance adjusting groove 32 of the distance adjusting block 30 faces the double-lug piece 20, and the convex edge 61 of the lock pin 60 is embedded into the limiting groove 33 of the distance adjusting block 30; subsequently, the fixing block 40 is used for clamping the convex edge 61 of the locking pin 60, the bolt fastening assembly 50 is installed, the fixing block 40, the distance adjusting block 30 and the double-lug piece 20 are fastened together, and the locking pin 60 cannot move in the axial direction. After the installation is finished, a fatigue testing machine can be started to carry out a fatigue test; after the test is completed, the bolt fastening assembly 50 is loosened, the lock pin 60, the fixed block 40 and the distance adjusting block 30 can be taken down, and then the proper distance adjusting block 30 is selected to test the next part to be tested.
The utility model discloses a high accuracy fatigue test frock, its simple structure, simple to operate, its lockpin 60 that easily folds locking device to the tail-boom carries out the location installation to be convenient for carry out fatigue test. The utility model discloses accessible distance regulating block 30 agrees with the different work condition of lockpin 60 in the in-service use process, and under the operating mode of different in service behavior, the optional not unidimensional distance regulating block 30 of using tests, therefore its precision that can improve fatigue test greatly.
While the invention has been described with reference to the above embodiments, the scope of the invention is not limited thereto, and the above components may be replaced with similar or equivalent elements known to those skilled in the art without departing from the concept of the invention.
Claims (9)
1. The utility model provides a high accuracy fatigue test frock which characterized in that, it includes:
a single-lug piece (10) provided with a first shaft hole (13);
a double-ear piece (20) which is inserted into the single-ear piece (10) and is provided with a second shaft hole (23) which can be coaxial with the first shaft hole (13);
the distance adjusting block (30) is detachably connected to the double-lug piece (20), a third shaft hole (31), a limiting groove (33) and a distance adjusting groove (32) are formed in the distance adjusting block (30), and the limiting groove (33) and the distance adjusting groove (32) are respectively communicated with the third shaft hole (31) and are respectively positioned at two ends of the third shaft hole (31); the distance adjustment groove (32) faces the binaural (20);
the fixing block (40) is detachably covered on the limiting groove (33) of the distance adjusting block (30), and a through hole (41) corresponding to the third shaft hole (31) is formed in the fixing block (40);
and the bolt fastening assembly (50) is used for detachably connecting the distance adjusting block (30), the fixing block (40) and the double-lug piece (20).
2. The high-precision fatigue test tool according to claim 1, wherein the distance adjusting block (30) is block-shaped, the distance adjusting groove (32) is a straight through groove, and a recess of the straight through groove is formed on one side surface of the distance adjusting block (30) and penetrates through two ends of the distance adjusting block (30); the limiting groove (33) is an annular groove and is formed on the surface of one side, opposite to the distance adjusting groove (32), of the distance adjusting block (30) in a recessed mode; the limiting groove (33) and the third shaft hole (31) form a stepped hole.
3. The high-precision fatigue test tool according to claim 2, wherein the through hole (41) is a U-shaped hole.
4. The high-precision fatigue test tool according to claim 1, wherein the double-lug piece (20) comprises a second threaded connection portion (21) and a double-lug portion (22), the second threaded connection portion (21) and the double-lug portion (22) are integrally formed or connected, the double-lug portion (22) is arranged on an end portion of the second threaded connection portion (21), the double-lug portion (22) is spaced in parallel to form an insertion space (223), and the double-lug portion (22) is provided with the second shaft hole (23).
5. The high-precision fatigue test tool according to claim 4, wherein the single-lug piece (10) comprises a first threaded connection portion (11) and a single lug portion (12), the first threaded connection portion (11) and the single lug portion (12) are integrally formed or connected, the single lug portion (12) is arranged on the end portion of the first threaded connection portion (11), the single lug portion (12) can be inserted into an insertion space (223) between the two lug portions (22), and the first shaft hole (13) is formed in the single lug portion (12).
6. The high-precision fatigue test tool according to claim 5, wherein the first shaft hole (13) and the second shaft hole (23) are perpendicular to the first threaded connection portion (11) and the second threaded connection portion (21).
7. The high-precision fatigue test tool according to claim 6, wherein when the first shaft hole (13) and the second shaft hole (23) are coaxial, the first threaded connection portion (11) and the second threaded connection portion (21) are in a coaxial state.
8. The high-precision fatigue test tool according to claim 4, wherein a plurality of internal thread holes (24) are formed in the double ear portions (22) facing the distance adjusting block (30), a plurality of first bolt mounting holes (34) corresponding to the internal thread holes (24) are formed in the distance adjusting block (30), and a plurality of second bolt mounting holes (42) corresponding to the first bolt mounting holes (34) are formed in the fixing block (40);
the bolt fastening assembly (50) comprises a bolt (51), a gasket (52) connected to the end of the bolt (51) and a self-locking nut (53);
the bolt (51) sequentially passes through the second bolt mounting hole (42) and the first bolt mounting hole (34) and is in threaded connection with the internal threaded hole (24); the gasket (52) and the self-locking nut (53) are respectively connected to the end or the near end part of the bolt (51) facing the fixed block (40) so as to firmly connect the fixed block (40), the distance adjusting block (30) and the double-lug part (22).
9. The high-precision fatigue test tool according to claim 8, wherein the internal threaded holes (24) are distributed on the periphery of the second shaft hole (23), the first bolt mounting holes (34) are distributed on the periphery of the limiting groove (33), and the second bolt mounting holes (42) are distributed on the periphery of the through hole (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020691555.6U CN211978301U (en) | 2020-04-29 | 2020-04-29 | High-precision fatigue test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020691555.6U CN211978301U (en) | 2020-04-29 | 2020-04-29 | High-precision fatigue test tool |
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| Publication Number | Publication Date |
|---|---|
| CN211978301U true CN211978301U (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020691555.6U Active CN211978301U (en) | 2020-04-29 | 2020-04-29 | High-precision fatigue test tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211978301U (en) |
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2020
- 2020-04-29 CN CN202020691555.6U patent/CN211978301U/en active Active
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Address after: Building 101, Building B, Building C, Building D, Building E, Building F, No. 22, Fengqi Road, Fuchengao Community, Longgang District, Shenzhen, Guangdong 518000 Patentee after: Shenzhen Asia Pacific Aviation Technology Co.,Ltd. Address before: No.68, Jiahu Road, fuchengao community, Pinghu street, Longgang District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN ASIA-PACIFIC AVIATION TECHNOLOGY Co.,Ltd. |