CN210953627U - Camera adjusting device - Google Patents
Camera adjusting device Download PDFInfo
- Publication number
- CN210953627U CN210953627U CN201921830733.2U CN201921830733U CN210953627U CN 210953627 U CN210953627 U CN 210953627U CN 201921830733 U CN201921830733 U CN 201921830733U CN 210953627 U CN210953627 U CN 210953627U
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- adjusting device
- camera
- supporting arm
- gear
- worm
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Abstract
A camera adjusting device comprises a clamping device, a first supporting arm, a second supporting arm, a height adjusting device, a horizontal adjusting device and a camera clamping ring; one end of the first supporting arm is provided with a clamping device, the other end of the first supporting arm is connected with one end of the second supporting arm, the other end of the second supporting arm is provided with a height adjusting device, the end part of the height adjusting device is provided with a horizontal adjusting device, and the end part of the horizontal adjusting device is provided with a camera clamping ring. The utility model discloses the motion of camera in the vertical direction can be solved in the application of turbine worm, the expansion condition of more comprehensive observation crackle. The utility model discloses the motion on the camera horizontal direction can be solved in rack and pinion's application, and the cooperation worm gear can the omnidirectional observation crackle trend.
Description
Technical Field
The utility model belongs to the technical field of camera position adjustment, in particular to camera adjusting device.
Background
With the development of science and technology, the application of steel structure is more and more common, involves the aspect of life. In order to ensure safety in application, researchers have conducted extensive studies on steel (and aluminum alloy materials), and fatigue crack growth performance is one of them. When the fatigue crack propagation performance is tested, a standard CT sample is adopted according to the ASTM E647 standard, the thickness B is 10mm, the width W is 70mm, the initial crack a0 is 14mm, a fatigue test is carried out by using a 8801 universal fatigue testing machine, under the condition of carrying out the test by a dead load method, the crack length is calculated by a flexibility method, the crack propagation condition is measured by using an own extensometer, but due to the range limitation, when the crack propagates to 40mm, the extensometer exceeds the range, but the CT test piece has not fatigue fracture, at the moment, the flexibility method is switched to a direct reading method, and meanwhile, the extensometer is taken down, and a camera which is 500 times held by hand is used for observing the crack propagation condition. The handheld camera not only wastes human resources, but also wastes time and labor, and the observation result is greatly influenced by human factors, thereby greatly influencing the smooth operation of the experiment. This causes great inconvenience to the progress of the fatigue crack propagation test and hinders the progress of the fatigue test.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a camera adjusting device to solve above-mentioned problem.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a camera adjusting device comprises a clamping device, a first supporting arm, a second supporting arm, a height adjusting device, a horizontal adjusting device and a camera clamping ring; one end of the first supporting arm is provided with a clamping device, the other end of the first supporting arm is connected with one end of the second supporting arm, the other end of the second supporting arm is provided with a height adjusting device, the end part of the height adjusting device is provided with a horizontal adjusting device, and the end part of the horizontal adjusting device is provided with a camera clamping ring.
Furthermore, the clamping device is formed by buckling two semicircular ring structures, the buckling positions are fixedly connected through bolts, and the clamping device is connected with the first supporting arm through a shaft pin.
Furthermore, the first supporting arm and the second supporting arm are both hollow tubular structures, one end of the second supporting arm is inserted into the first supporting arm, and the superposition position of the first supporting arm and the second supporting arm is connected through a shaft pin.
Further, the height adjusting device comprises a rack and a gear; one end of the rack is inserted into the second supporting arm, a gear mounting groove is formed in the side wall of the end part of the second supporting arm, the gear is mounted in the gear mounting groove, and the rack is meshed with the gear.
Furthermore, the gear is installed in the gear installation groove through the pivot, and the gear is connected with the pivot key.
Further, a worm wheel mounting groove is formed in the top of the rack of the horizontal adjusting device; the horizontal adjusting device comprises a worm wheel and a worm; the worm wheel is arranged in the worm wheel mounting groove, a worm is horizontally and transversely arranged in the rack above the worm wheel, and the worm wheel and the worm are meshed with each other; the end of the worm is provided with a camera clamping ring.
Compared with the prior art, the utility model discloses there is following technological effect:
the utility model discloses the motion of camera in the vertical direction can be solved in the application of turbine worm, the expansion condition of more comprehensive observation crackle.
The utility model discloses the motion on the camera horizontal direction can be solved in rack and pinion's application, and the cooperation worm gear can the omnidirectional observation crackle trend.
The utility model discloses back supporting arm can select certain one side of test piece to observe according to actual conditions in the rotation of circumferencial direction, and is narrow and small to the space, and the equipment that is difficult for observing has outstanding effect.
The utility model discloses the precision fit, mechanical shake is little, is difficult for appearing the shake during the observation, improves and observes the crackle precision.
The utility model relates to a rationally, simple structure, low in manufacturing cost.
Drawings
Fig. 1 is a schematic structural view (front view) of the camera adjusting device for observing fatigue crack growth for 8801 fatigue testing machine of the present invention.
Fig. 2 is a schematic structural view (right side view) of the camera adjusting device for observing fatigue crack growth for the 8801 fatigue testing machine of the utility model.
Fig. 3 is a schematic view of a second support arm according to the present invention.
In the figure: 1 is a clamping device, 2 is a first supporting arm, 3 is a second supporting arm, and 31 is a gear mounting groove; 4 is a gear rack group, 41 is a gear, and 42 is a rack; 5 is a worm wheel and worm group, 51 is a worm wheel, and 52 is a worm; and 6, a camera holding ring.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
referring to fig. 1 to 3, a camera adjusting device includes a clamping device, a first supporting arm 2, a second supporting arm 3, a height adjusting device, a horizontal adjusting device, and a camera holding ring 6; one end of the first supporting arm 2 is provided with a clamping device, the other end of the first supporting arm 2 is connected with one end of the second supporting arm 3, the other end of the second supporting arm 3 is provided with a height adjusting device, the end part of the height adjusting device is provided with a horizontal adjusting device, and the end part of the horizontal adjusting device is provided with a camera clamping ring 6.
The clamping device is in butt joint with two semicircular ring structures, the butt joint positions are fixedly connected through bolts, and the clamping device is connected with the first supporting arm 2 through a shaft pin.
The first supporting arm 2 and the second supporting arm 3 are both hollow tubular structures, one end of the second supporting arm 3 is inserted into the first supporting arm 2, and the superposition position of the first supporting arm 2 and the second supporting arm 3 is connected through a shaft pin.
The height adjusting means includes a rack 42 and a pinion 41; one end of the rack 42 is inserted into the second support arm 3, a gear mounting groove 31 is formed on the side wall of the end portion of the second support arm 3, the gear 41 is mounted in the gear mounting groove 31, and the rack 42 is engaged with the gear 41.
The gear 41 is installed in the gear installation groove 31 by a shaft pin, and the gear 41 is keyed with the shaft pin.
The top of the horizontal adjusting device rack 42 is provided with a worm wheel mounting groove; the level adjustment device includes a worm wheel 51 and a worm 52; the worm wheel 51 is arranged in the worm wheel mounting groove, the worm 52 is horizontally and transversely arranged in the rack 42 above the worm wheel 51, and the worm wheel 51 and the worm 52 are meshed with each other; the end of the worm 52 is provided with a camera clamping ring 6.
When a 8801 universal fatigue testing machine is used for fatigue crack propagation tests, after the measuring range of the extensometer is exceeded, the flexibility method is changed into the straightness method, and at the moment, a camera is used for observing the fatigue crack propagation condition. Firstly, clamping a clamping device on a frame of a 8801 fatigue testing machine, in order to prevent scratching the frame, a rubber pad can be padded around the clamping claw, and a fixing bolt is screwed after the clamping claw is screwed and adjusted to a proper height; aligning the notch of the first support frame 2 with the clamping lug, and fixing the position between the notch and the clamping lug by using 2 pins; then the second support frame 3 is inserted into the first support frame 2, the second support frame is provided with three pin holes, the length can be adjusted to be proper, the relative position is fixed by pins, and at the moment, the second support frame 3 can be rotated to control the positions of the cameras at the two sides of the test piece according to different placing positions of the testing machine; a rack 42 and a gear 41 are installed, and the gear position is fixed by a pin; a worm wheel 51 and a worm 52 are arranged in the groove, and the worm wheel is fixed; and (4) placing a camera clamping ring, and finishing the installation of the device at the moment.
When the test piece works, the vertical position of the camera can be controlled by rotating the turbine, and after the crack position is found, the camera is righted to be vertical to the test piece; the camera is controlled to move along with the crack by rotating the gear to control the position of the camera in the horizontal direction. And accurately measuring the crack length.
Claims (6)
1. A camera adjusting device is characterized by comprising a clamping device, a first supporting arm (2), a second supporting arm (3), a height adjusting device, a horizontal adjusting device and a camera clamping ring (6); one end of the first supporting arm (2) is provided with a clamping device, the other end of the first supporting arm (2) is connected with one end of the second supporting arm (3), the other end of the second supporting arm (3) is provided with a height adjusting device, the end part of the height adjusting device is provided with a horizontal adjusting device, and the end part of the horizontal adjusting device is provided with a camera clamping ring (6).
2. A camera adjusting device according to claim 1, wherein the clamping device is provided as two half-rings, the two half-rings are fastened together by a bolt, and the clamping device is connected with the first support arm (2) by a shaft pin.
3. A camera adjustment device according to claim 1, characterized in that the first support arm (2) and the second support arm (3) are both hollow tubular structures, one end of the second support arm (3) is inserted inside the first support arm (2), and the overlapping part of the first support arm (2) and the second support arm (3) is connected by a shaft pin.
4. A camera adjustment device according to claim 1, characterized in that the height adjustment device comprises a rack (42) and a gear (41); one end of the rack (42) is inserted into the second supporting arm (3), a gear mounting groove (31) is formed in the side wall of the end part of the second supporting arm (3), the gear (41) is mounted in the gear mounting groove (31), and the rack (42) is meshed with the gear (41).
5. A camera adjustment device according to claim 4, characterized in that the gear wheel (41) is mounted in the gear wheel mounting groove (31) by means of a pivot pin, the gear wheel (41) being keyed to the pivot pin.
6. The camera adjusting device according to claim 4, wherein a worm wheel mounting groove is formed at the top of the horizontal adjusting device rack (42); the horizontal adjusting device comprises a worm wheel (51) and a worm (52); a worm wheel (51) is arranged in the worm wheel mounting groove, a worm (52) is horizontally and transversely arranged in the rack (42) above the worm wheel (51), and the worm wheel (51) and the worm (52) are meshed with each other; the end part of the worm (52) is provided with a camera clamping ring (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921830733.2U CN210953627U (en) | 2019-10-28 | 2019-10-28 | Camera adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921830733.2U CN210953627U (en) | 2019-10-28 | 2019-10-28 | Camera adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210953627U true CN210953627U (en) | 2020-07-07 |
Family
ID=71397218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921830733.2U Expired - Fee Related CN210953627U (en) | 2019-10-28 | 2019-10-28 | Camera adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210953627U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631903A (en) * | 2019-10-28 | 2019-12-31 | 长安大学 | Camera adjusting device for fatigue crack propagation measurement |
-
2019
- 2019-10-28 CN CN201921830733.2U patent/CN210953627U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110631903A (en) * | 2019-10-28 | 2019-12-31 | 长安大学 | Camera adjusting device for fatigue crack propagation measurement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200707 Termination date: 20211028 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |