CN113607404A - Threaded tension-compression loading device with direction-changeable pin hole - Google Patents
Threaded tension-compression loading device with direction-changeable pin hole Download PDFInfo
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- CN113607404A CN113607404A CN202111083267.8A CN202111083267A CN113607404A CN 113607404 A CN113607404 A CN 113607404A CN 202111083267 A CN202111083267 A CN 202111083267A CN 113607404 A CN113607404 A CN 113607404A
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- 238000007906 compression Methods 0.000 title claims abstract description 32
- 230000007704 transition Effects 0.000 claims abstract description 15
- 230000006835 compression Effects 0.000 claims abstract description 14
- 230000002441 reversible effect Effects 0.000 claims 3
- 238000012360 testing method Methods 0.000 description 8
- 230000003068 static effect Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The invention discloses a screw thread type tension-compression loading device with a pin hole capable of changing directions, which mainly comprises a screw thread loading rod, an upper fixing plate, a lower fixing plate, a loading transition piece, a sensor upper connecting piece, an S-shaped tension-compression sensor, a pin connecting piece, a pin, a bolt and a nut. The upper fixing plate and the lower fixing plate are provided with threaded holes, the upper fixing plate and the lower fixing plate are fixed on the fixing piece through bolts and nuts, and the fixable space is adjusted through replacing the bolts; the thread loading rod is in thread fit with the upper fixing plate and the lower fixing plate to carry out tension and compression loading; grooves are formed in the upper end and the lower end of the loading transition piece, the upper end groove is connected with the threaded loading rod, and the lower end groove is connected with the sensor upper connecting piece; the pin connecting piece is connected with the S-shaped pull-press sensor through threads, and loading in different pin directions is achieved by adjusting the threads. The invention has the advantages of flexible loading mode, simple structure, simple and convenient operation and low cost.
Description
Technical Field
The invention relates to the technical field of test loading, in particular to a screw thread type tension-compression loading device with a pin hole capable of changing directions.
Background
Static test verification is required after finite element analysis is carried out on the parts, but the parts cannot be directly loaded on the testing machine, corresponding clamps need to be designed, most testing machines can only carry out unidirectional loading, and the loading angle is not flexible enough. For the condition that the load working condition is small, the instability of the loading load caused by hydraulic fluctuation can be met when the testing machine is used for loading, the static test result is influenced, the testing machine is expensive, and a special site is needed for testing. Therefore, a tension and compression loading device with simple structure, flexible loading and low cost is urgently needed.
Disclosure of Invention
The invention aims to provide a screw thread type tension-compression loading device with a pin hole capable of changing directions, so as to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme:
the invention discloses a screw thread type tension-compression loading device with a pin hole capable of changing directions, which mainly comprises a screw thread loading rod, an upper fixing plate, a lower fixing plate, a loading transition piece, a sensor upper connecting piece, an S-shaped tension-compression sensor, a pin connecting piece, a pin, a bolt, a nut and a fixing piece. The upper fixing plate and the lower fixing plate are provided with threaded holes, the upper fixing plate and the lower fixing plate are fixed on the fixing piece through bolts and nuts, and the fixable space is adjusted through replacing the bolts; the thread loading rod is in thread fit with the upper fixing plate and the lower fixing plate to carry out tension and compression loading; grooves are formed in the upper end and the lower end of the loading transition piece, the upper end groove is connected with the threaded loading rod, and the lower end groove is connected with the sensor upper connecting piece; the pin connecting piece is connected with the S-shaped pull-press sensor through threads, and loading in different pin directions is achieved by adjusting the threads.
Furthermore, the upper fixing plate and the lower fixing plate are provided with threaded holes matched with the threaded loading rods, and the threaded loading rods are matched with the upper fixing plate and the lower fixing plate through threads to carry out tension and compression loading; the upper fixing plate and the lower fixing plate are fixed on the fixing parts through 4 bolt holes, and the sizes of the adjusting bolts are adjusted to realize the fixation of different fixing parts.
Furthermore, grooves are formed in the upper end and the lower end of the loading transition piece, the upper end groove is in contact fit with the surface of the thread loading rod, the lower end groove is in contact fit with the surface of the upper connecting piece of the sensor, and the positions of the thread loading rod and the upper connecting piece of the sensor in the grooves are adjusted to realize centering of the loading direction.
Furthermore, the pin connecting piece is matched with the S-shaped tension and compression sensor through threads, and the requirements of different pin loading directions can be met by adjusting the threads.
The working principle of the invention is as follows: selecting bolts with different sizes according to the size of the fixing piece to fix the upper fixing plate and the lower fixing plate, matching the thread loading rod with the upper fixing plate and the lower fixing plate through threads, rotating the thread loading rod to apply a torque to further drive the loading transition piece, then driving the sensor upper connecting piece to apply a force along the axis direction of the thread loading rod to the S-shaped tension and compression sensor, enabling the S-shaped tension and compression sensor to measure an electric signal and convert the electric signal into a force display, further driving the pin connecting piece, so that the force applied by the thread loading rod is transmitted to the pin, and finally force loading is achieved; during unloading, the thread loading rod is rotated to apply a torque opposite to the direction during loading, the thread loading rod is screwed out upwards, and finally the force unloading is realized.
The invention has the beneficial effects that: the threaded tension-compression loading device with the pin hole capable of changing directions is flexible in loading mode, novel in design thought, simple and reliable in structure, capable of feeding back loading conditions in real time by means of an S-shaped tension-compression sensor, capable of adjusting the direction of the pin hole through threads and capable of meeting requirements of different working conditions.
Drawings
The invention is further explained by the accompanying drawings.
Fig. 1 is a schematic view of the general structure of the present invention.
FIG. 2 is a schematic view of a threaded load bar of the present invention.
Fig. 3 is a schematic view of an upper fixing plate according to the present invention.
FIG. 4 is a schematic view of a loading transition piece of the present invention.
FIG. 5 is a schematic view of the upper connector of the sensor of the present invention.
Figure 6 is a schematic view of a pin connection according to the present invention.
In the figure: the sensor comprises a 1-thread loading rod, a 2-upper fixing plate, a 3-lower fixing plate, a 4-loading transition piece, a 5-sensor upper connecting piece, a 6-S-shaped tension and compression sensor, a 7-pin connecting piece, an 8-pin, a 9-nut, a 10-fixing piece (10) and an 11-bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
A screw thread type tension-compression loading device with a pin hole capable of changing directions mainly comprises a screw thread loading rod 1, an upper fixing plate 2, a lower fixing plate 3, a loading transition piece 4, a sensor upper connecting piece 5, an S-shaped tension-compression sensor 6, a pin connecting piece 7, a pin 8, a bolt 11, a nut 9 and a fixing piece 10. The upper fixing plate 2 and the lower fixing plate 3 are provided with threaded holes, the upper fixing plate and the lower fixing plate are fixed on a fixing piece 10 through bolts 11 and nuts 9, and the fixable space is adjusted by replacing the bolts 11; the thread loading rod 1 is in thread fit with the upper fixing plate 2 and the lower fixing plate 3 to carry out tension and compression loading; grooves are formed in the upper end and the lower end of the loading transition piece 4, the groove in the upper end is connected with the threaded loading rod 1, and the groove in the lower end is connected with the sensor upper connecting piece 5; the pin connecting piece 7 is connected with the S-shaped pull-press sensor 6 through threads, and loading in different directions of the pins 8 is achieved through adjusting the threads.
Further, the upper fixing plate 2 and the lower fixing plate 3 are provided with threaded holes matched with the threaded loading rod 1, and the threaded loading rod 1 is in threaded fit with the upper fixing plate 2 and the lower fixing plate 3 to carry out tension and compression loading; the upper fixing plate 2 and the lower fixing plate 3 are fixed on the fixing member 10 through 4 bolt holes, and the fixing of different fixing members 10 is realized by adjusting the size of the bolt 11.
Furthermore, the upper end and the lower end of the loading transition piece 4 are provided with grooves, the upper end groove is in surface contact fit with the threaded loading rod 1, the lower end groove is in surface contact fit with the sensor upper connecting piece 5, and the positions of the threaded loading rod 1 and the sensor upper connecting piece 5 in the grooves are adjusted to realize the alignment of the loading direction.
Furthermore, the pin connecting piece 7 is matched with the S-shaped tension and compression sensor 6 through threads, and the requirements of different pin 8 loading directions can be met by adjusting the threads.
The working principle of the invention is as follows: selecting bolts 11 with different sizes according to the size of a fixing piece 10 to fix an upper fixing plate 2 and a lower fixing plate 3, matching a thread loading rod 1 with the upper fixing plate 2 and the lower fixing plate 3 through threads, rotating the thread loading rod 1 to apply a torque to drive a loading transition piece 4, driving a sensor upper connecting piece 5 to apply a force along the axial direction of the thread loading rod 1 to an S-shaped tension and compression sensor 6, enabling the S-shaped tension and compression sensor 6 to measure an electric signal and convert the electric signal into a force display, driving a pin connecting piece 7, transmitting the force applied by the thread loading rod 1 to a pin 8, and finally realizing the force loading; during unloading, the thread loading rod 1 is rotated to apply a torque opposite to the direction during loading, the thread loading rod 1 is screwed out upwards, and finally the force unloading is realized.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The invention discloses a screw thread type tension-compression loading device with a pin hole capable of changing directions, which mainly comprises a screw thread loading rod (1), an upper fixing plate (2), a lower fixing plate (3), a loading transition piece (4), a sensor upper connecting piece (5), an S-shaped tension-compression sensor (6), a pin connecting piece (7), a pin (8), a bolt (11), a nut (9) and a fixing piece (10); the upper fixing plate (2) and the lower fixing plate (3) are provided with threaded holes, the upper fixing plate and the lower fixing plate are fixed on a fixing piece (10) through bolts (11) and nuts (9), and fixable space is adjusted by replacing the bolts (11); the thread loading rod (1) is in thread fit with the upper fixing plate (2) and the lower fixing plate (3) to carry out tension and compression loading; grooves are formed in the upper end and the lower end of the loading transition piece (4), the upper end groove is connected with the threaded loading rod (1), and the lower end groove is connected with the sensor upper connecting piece (5); the pin connecting piece (7) is connected with the S-shaped pull-press sensor (6) through threads, and loading in different directions of the pin (8) is achieved through adjusting the threads.
2. The pin hole reversible threaded tension-compression loading unit of claim 1, wherein: the upper fixing plate (2) and the lower fixing plate (3) are provided with threaded holes matched with the threaded loading rod (1), and the threaded loading rod (1) is matched with the upper fixing plate (2) and the lower fixing plate (3) through threads to carry out tension-compression loading; the upper fixing plate (2) and the lower fixing plate (3) are fixed on the fixing piece (10) through 4 bolt holes, and the sizes of the adjusting bolts are adjusted to realize the fixation of different fixing pieces (10).
3. The pin hole reversible threaded tension-compression loading unit of claim 1, wherein: the loading transition piece (4) is provided with grooves at the upper end and the lower end, the groove at the upper end is in surface contact fit with the thread loading rod (1), the groove at the lower end is in surface contact fit with the sensor upper connecting piece (5), and the positions of the thread loading rod (1) and the sensor upper connecting piece (5) in the grooves are adjusted to realize the centering of the loading direction.
4. The pin hole reversible threaded tension-compression loading unit of claim 1, wherein: the pin connecting piece (7) is matched with the S-shaped pull-press sensor (6) through threads, and the requirement of different pin (8) loading directions can be met by adjusting the threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111083267.8A CN113607404A (en) | 2021-09-16 | 2021-09-16 | Threaded tension-compression loading device with direction-changeable pin hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111083267.8A CN113607404A (en) | 2021-09-16 | 2021-09-16 | Threaded tension-compression loading device with direction-changeable pin hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113607404A true CN113607404A (en) | 2021-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111083267.8A Pending CN113607404A (en) | 2021-09-16 | 2021-09-16 | Threaded tension-compression loading device with direction-changeable pin hole |
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| CN (1) | CN113607404A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5199301A (en) * | 1991-09-03 | 1993-04-06 | Westinghouse Electric Corp. | Apparatus for applying a known axial force to a valve stem |
| US5598738A (en) * | 1995-04-03 | 1997-02-04 | Lockheed Idaho Technologies Company | Load apparatus and method for bolt-loaded compact tension test specimen |
| CN101082553A (en) * | 2007-07-05 | 2007-12-05 | 南京航空航天大学 | Complicated curved face object loading experimental method and device |
| CN201749059U (en) * | 2010-07-02 | 2011-02-16 | 贵州风雷航空军械有限责任公司 | Loading device for test |
| CN102798527A (en) * | 2012-07-27 | 2012-11-28 | 河南科技大学 | Tester for detecting performance of oil-retaining bearing and radial loading mechanism thereof |
| CN106680095A (en) * | 2017-03-08 | 2017-05-17 | 华北理工大学 | Assembled special-shaped-column-structured loading device and test method thereof |
| CN112461641A (en) * | 2020-12-08 | 2021-03-09 | 哈尔滨理工大学 | One-way thread transmission static force loading device |
-
2021
- 2021-09-16 CN CN202111083267.8A patent/CN113607404A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5199301A (en) * | 1991-09-03 | 1993-04-06 | Westinghouse Electric Corp. | Apparatus for applying a known axial force to a valve stem |
| US5598738A (en) * | 1995-04-03 | 1997-02-04 | Lockheed Idaho Technologies Company | Load apparatus and method for bolt-loaded compact tension test specimen |
| CN101082553A (en) * | 2007-07-05 | 2007-12-05 | 南京航空航天大学 | Complicated curved face object loading experimental method and device |
| CN201749059U (en) * | 2010-07-02 | 2011-02-16 | 贵州风雷航空军械有限责任公司 | Loading device for test |
| CN102798527A (en) * | 2012-07-27 | 2012-11-28 | 河南科技大学 | Tester for detecting performance of oil-retaining bearing and radial loading mechanism thereof |
| CN106680095A (en) * | 2017-03-08 | 2017-05-17 | 华北理工大学 | Assembled special-shaped-column-structured loading device and test method thereof |
| CN112461641A (en) * | 2020-12-08 | 2021-03-09 | 哈尔滨理工大学 | One-way thread transmission static force loading device |
Non-Patent Citations (1)
| Title |
|---|
| 叶本远等: "航空轴承试验器力载荷装置改进方法", 《燃气涡轮试验与研究》, vol. 28, no. 5 * |
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Application publication date: 20211105 |