CN219391189U - Portable stress tester - Google Patents
Portable stress tester Download PDFInfo
- Publication number
- CN219391189U CN219391189U CN202320158481.3U CN202320158481U CN219391189U CN 219391189 U CN219391189 U CN 219391189U CN 202320158481 U CN202320158481 U CN 202320158481U CN 219391189 U CN219391189 U CN 219391189U
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- China
- Prior art keywords
- cylinder body
- test piece
- support rod
- supporting ring
- lifting column
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- 238000012360 testing method Methods 0.000 claims abstract description 50
- 238000001179 sorption measurement Methods 0.000 claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000005259 measurement Methods 0.000 abstract description 6
- 238000005553 drilling Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009662 stress testing Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to the field of stress measuring instruments, in particular to a portable stress measuring instrument which comprises a test piece, a strain gauge, a stress measuring instrument body, a cylinder body, a support rod b, a lifting column and a spring, wherein the support rod b is arranged on the body of the stress measuring instrument; the strain gauge is arranged on the test piece and is electrically connected with the stress tester body; the outer walls of the bottom and the top of the cylinder body are respectively provided with a supporting ring a and a supporting ring b, and the outer wall of the supporting ring a is horizontally and equidistantly provided with four groups of supporting rods a; the top of the support rod b is provided with a sleeve frame, the sleeve frame is sleeved on the support rod a in a sliding manner, a locking bolt is arranged on the sleeve frame, and the bottom of the support rod b is provided with an adsorption component connected with the test piece; the lifting column penetrates through the cylinder body, an electric drill is arranged at the bottom of the lifting column, a drill bit is vertically arranged at the bottom of the electric drill, and a pressing plate is arranged at the top of the lifting column; the spring is sleeved on the cylinder body, and two ends of the spring are respectively connected with the supporting ring b and the pressing plate. The utility model has no size limitation on the test piece, can smoothly complete the measurement of the residual stress, and has wide application range.
Description
Technical Field
The utility model relates to the field of stress measuring instruments, in particular to a portable stress measuring instrument.
Background
The residual stress measurement is usually performed by a small hole release method, which is a semi-destructive method for measuring the welding residual stress, wherein a special resistance strain gauge is firstly attached, then a small hole with the diameter of 1-3 mm is drilled in the middle to release the residual stress part, and the resistance value change of the strain gauge before and after drilling is measured, so that the magnitude and the direction of the residual stress of the point can be calculated.
The Chinese patent with the publication number of CN204115919U discloses a portable residual stress testing device, which comprises a sleeve screw, a workbench, a lifting knob, a level meter, supporting legs, a miniature electric drill, a universal joint and a magnetic seat, wherein the sleeve screw is fixedly connected with the miniature electric drill, and the sleeve screw and the miniature electric drill penetrate through the center line of the workbench; the lifting knob is arranged in the workbench, the outer end of the lifting knob extends out of the workbench, and the inner end of the lifting knob is movably connected with a sleeve screw rod arranged in the workbench; a plurality of connecting arms extending outwards horizontally are uniformly arranged around the workbench, the tail ends of the connecting arms are movably connected with the supporting legs, and universal joints and magnetic seats are arranged at the bottoms of the supporting legs. The utility model can be suitable for stress test of uneven plates, and has accurate test structure.
However, the above disclosed solution has the following disadvantages: only the test piece is great, and this scheme can only be used when three magnetic force seats homoenergetic are placed on the test piece, if the test piece is less, or the test piece is rectangular form, and when three magnetic force seats can not adsorb simultaneously, this structure just is difficult to be suitable, and application range is limited.
Disclosure of Invention
The utility model aims to solve the problems that the prior art has requirements on the size of a test piece during drilling and measurement of a stress tester and the application range is limited, and provides a portable stress tester.
The technical scheme of the utility model is as follows: a portable stress tester comprises a test piece, a strain gauge and a stress tester body; the lifting device also comprises a cylinder body, a supporting rod b, a lifting column and a spring;
the strain gauge is arranged on the test piece and is electrically connected with the stress tester body;
the outer walls of the bottom and the top of the cylinder body are respectively provided with a supporting ring a and a supporting ring b, and the outer wall of the supporting ring a is horizontally and equidistantly provided with four groups of supporting rods a; the top of the support rod b is provided with a sleeve frame, the sleeve frame is sleeved on the support rod a in a sliding manner, a locking bolt is arranged on the sleeve frame, and the bottom of the support rod b is provided with an adsorption component connected with the test piece; the lifting column penetrates through the cylinder body, an electric drill is arranged at the bottom of the lifting column, a drill bit is vertically arranged at the bottom of the electric drill, and a pressing plate is arranged at the top of the lifting column; the spring is sleeved on the cylinder body, and two ends of the spring are respectively connected with the supporting ring b and the pressing plate.
Preferably, the support rod a is a round rod or a square rod.
Preferably, a baffle is arranged at the end part of the supporting rod a.
Preferably, the adsorption assembly comprises a universal joint and a magnetic seat; the universal joint sets up in bracing piece b bottom, and the magnetic force seat sets up in the universal joint bottom, sets up the switch on the magnetic force seat.
Preferably, the device also comprises a limit rod and a thread bush; the limiting rods are vertically arranged at the bottom of the pressing plate, a plurality of groups of limiting rods are arranged, and the limiting rods are positioned at the outer side of the supporting ring b; the thread bush is sleeved on the cylinder body, and threads matched with the thread bush are arranged on the peripheral wall of the cylinder body.
Preferably, a plurality of groups of auxiliary rotating rods are horizontally arranged on the outer wall of the threaded sleeve.
Preferably, scale marks are vertically arranged on the peripheral wall of the cylinder body.
Compared with the prior art, the technical scheme provided by the utility model has the following beneficial technical effects: when the size of the test piece is larger, the plurality of groups of magnetic seats are adsorbed at the top of the test piece to be fixed, when the test piece is strip-shaped, the two groups of magnetic seats in the same direction are adsorbed at the top of the test piece to be fixed, and when the size of the test piece is smaller, the positions of the magnetic seats are adjusted to enable the magnetic seats to be adsorbed at the outer side face of the test piece to be fixed, so that the test piece is free from size limitation, and the application range is wide.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
Fig. 2 is a schematic structural diagram of a second embodiment of the present utility model.
Fig. 3 is a schematic structural diagram of a third embodiment of the present utility model.
Reference numerals: 1. a test piece; 2. a strain gage; 3. a stress measuring instrument body; 4. a cylinder; 5. a support ring a; 6. a support ring b; 7. a supporting rod a; 8. a sleeve frame; 9. a baffle; 10. a support rod b; 11. a universal joint; 12. a magnetic base; 13. a locking bolt; 14. lifting columns; 15. electric drill; 16. a spring; 17. a pressing plate; 18. a limit rod; 19. a thread sleeve; 20. an auxiliary rotating rod; 21. graduation marks.
Detailed Description
Example 1
As shown in fig. 1, the portable stress tester provided by the utility model comprises a test piece 1, a strain gauge 2 and a stress tester body 3; the device also comprises a cylinder body 4, a support rod b10, a lifting column 14, a spring 16, a limit rod 18 and a thread sleeve 19;
the strain gauge 2 is arranged on the test piece 1, and the strain gauge 2 is electrically connected with the stress tester body 3;
the outer walls of the bottom and the top of the cylinder body 4 are respectively provided with a supporting ring a5 and a supporting ring b6, and four groups of supporting rods a7 are horizontally and equidistantly arranged on the outer wall of the supporting ring a 5; the top of the support rod b10 is provided with a sleeve frame 8, the sleeve frame 8 is sleeved on the support rod a7 in a sliding way, the sleeve frame 8 is provided with a locking bolt 13, and the bottom of the support rod b10 is provided with an adsorption component connected with the test piece 1; the lifting column 14 passes through the cylinder body 4, an electric drill 15 is arranged at the bottom of the lifting column 14, a drill bit is vertically arranged at the bottom of the electric drill 15, and a pressing plate 17 is arranged at the top of the lifting column 14; the spring 16 is sleeved on the cylinder 4, and two ends of the spring 16 are respectively connected with the supporting ring b6 and the pressing plate 17. The limiting rods 18 are vertically arranged at the bottom of the pressing plate 17, a plurality of groups of limiting rods 18 are arranged, and the limiting rods 18 are positioned on the outer side of the supporting ring b 6; the thread bush 19 is sleeved on the cylinder body 4, and threads matched with the thread bush 19 are arranged on the peripheral wall of the cylinder body 4.
In this embodiment, the four groups of adsorption components are adsorbed on the top of the test piece 1 to complete fixation, then the electric drill 15 is started, the pressing plate 17 is manually pressed downwards, and the drill is used for drilling, so that the stress measurement can be completed.
The supporting rod a7 is a round rod or a square rod, the end of the supporting rod a7 is provided with a baffle 9, and the baffle 9 can prevent the sleeve frame 8 from sliding down from the supporting rod a 7.
It should be noted that the adsorption assembly includes a universal joint 11 and a magnetic base 12; the universal joint 11 sets up in bracing piece b10 bottom, and magnetic seat 12 sets up the switch in universal joint 11 bottom, magnetic seat 12. When the size of the test piece 1 is larger, the plurality of groups of magnetic seats 12 are adsorbed on the top of the test piece 1 to complete fixation.
It should be noted that, the outer wall of the threaded sleeve 19 is horizontally provided with a plurality of groups of auxiliary rotating rods 20, so that the threaded sleeve 19 can be rotated more conveniently. Scale marks 21 are vertically arranged on the peripheral wall of the cylinder body 4, so that the penetration depth of the electric drill 15 can be conveniently mastered.
Example two
As shown in fig. 2, the portable stress tester provided by the utility model comprises a test piece 1, a strain gauge 2 and a stress tester body 3; the device also comprises a cylinder body 4, a support rod b10, a lifting column 14, a spring 16, a limit rod 18 and a thread sleeve 19;
the strain gauge 2 is arranged on the test piece 1, and the strain gauge 2 is electrically connected with the stress tester body 3;
the outer walls of the bottom and the top of the cylinder body 4 are respectively provided with a supporting ring a5 and a supporting ring b6, and four groups of supporting rods a7 are horizontally and equidistantly arranged on the outer wall of the supporting ring a 5; the top of the support rod b10 is provided with a sleeve frame 8, the sleeve frame 8 is sleeved on the support rod a7 in a sliding way, the sleeve frame 8 is provided with a locking bolt 13, and the bottom of the support rod b10 is provided with an adsorption component connected with the test piece 1; the lifting column 14 passes through the cylinder body 4, an electric drill 15 is arranged at the bottom of the lifting column 14, a drill bit is vertically arranged at the bottom of the electric drill 15, and a pressing plate 17 is arranged at the top of the lifting column 14; the spring 16 is sleeved on the cylinder 4, and two ends of the spring 16 are respectively connected with the supporting ring b6 and the pressing plate 17. The limiting rods 18 are vertically arranged at the bottom of the pressing plate 17, a plurality of groups of limiting rods 18 are arranged, and the limiting rods 18 are positioned on the outer side of the supporting ring b 6; the thread bush 19 is sleeved on the cylinder body 4, and threads matched with the thread bush 19 are arranged on the peripheral wall of the cylinder body 4.
In this embodiment, the two groups of adsorption components in the same direction are adsorbed on the top of the test piece 1 to complete fixation, then the electric drill 15 is started, the pressing plate 17 is manually pressed downwards, and the stress measurement can be completed by drilling through a drill bit.
The supporting rod a7 is a round rod or a square rod, the end of the supporting rod a7 is provided with a baffle 9, and the baffle 9 can prevent the sleeve frame 8 from sliding down from the supporting rod a 7.
It should be noted that the adsorption assembly includes a universal joint 11 and a magnetic base 12; the universal joint 11 sets up in bracing piece b10 bottom, and magnetic seat 12 sets up the switch in universal joint 11 bottom, magnetic seat 12. When the test piece 1 is in a strip shape, the two groups of magnetic seats 12 in the same direction are adsorbed on the top of the test piece 1 to finish fixation.
It should be noted that, the outer wall of the threaded sleeve 19 is horizontally provided with a plurality of groups of auxiliary rotating rods 20, so that the threaded sleeve 19 can be rotated more conveniently. Scale marks 21 are vertically arranged on the peripheral wall of the cylinder body 4, so that the penetration depth of the electric drill 15 can be conveniently mastered.
Example III
As shown in fig. 3, the portable stress tester provided by the utility model comprises a test piece 1, a strain gauge 2 and a stress tester body 3; the device also comprises a cylinder body 4, a support rod b10, a lifting column 14, a spring 16, a limit rod 18 and a thread sleeve 19;
the strain gauge 2 is arranged on the test piece 1, and the strain gauge 2 is electrically connected with the stress tester body 3;
the outer walls of the bottom and the top of the cylinder body 4 are respectively provided with a supporting ring a5 and a supporting ring b6, and four groups of supporting rods a7 are horizontally and equidistantly arranged on the outer wall of the supporting ring a 5; the top of the support rod b10 is provided with a sleeve frame 8, the sleeve frame 8 is sleeved on the support rod a7 in a sliding way, the sleeve frame 8 is provided with a locking bolt 13, and the bottom of the support rod b10 is provided with an adsorption component connected with the test piece 1; the lifting column 14 passes through the cylinder body 4, an electric drill 15 is arranged at the bottom of the lifting column 14, a drill bit is vertically arranged at the bottom of the electric drill 15, and a pressing plate 17 is arranged at the top of the lifting column 14; the spring 16 is sleeved on the cylinder 4, and two ends of the spring 16 are respectively connected with the supporting ring b6 and the pressing plate 17. The limiting rods 18 are vertically arranged at the bottom of the pressing plate 17, a plurality of groups of limiting rods 18 are arranged, and the limiting rods 18 are positioned on the outer side of the supporting ring b 6; the thread bush 19 is sleeved on the cylinder body 4, and threads matched with the thread bush 19 are arranged on the peripheral wall of the cylinder body 4.
In this embodiment, the four groups of adsorption components are adsorbed on the outer side surface of the test piece 1 to complete fixation, then the electric drill 15 is started, the pressing plate 17 is manually pressed downwards, and the stress measurement can be completed by drilling holes through a drill bit.
The supporting rod a7 is a round rod or a square rod, the end of the supporting rod a7 is provided with a baffle 9, and the baffle 9 can prevent the sleeve frame 8 from sliding down from the supporting rod a 7.
It should be noted that the adsorption assembly includes a universal joint 11 and a magnetic base 12; the universal joint 11 sets up in bracing piece b10 bottom, and magnetic seat 12 sets up the switch in universal joint 11 bottom, magnetic seat 12. When the size of the test piece 1 is smaller, the position of the magnetic seat 12 is adjusted to enable the magnetic seat to be adsorbed on the outer side face of the test piece 1 to finish fixation.
It should be noted that, the outer wall of the threaded sleeve 19 is horizontally provided with a plurality of groups of auxiliary rotating rods 20, so that the threaded sleeve 19 can be rotated more conveniently. Scale marks 21 are vertically arranged on the peripheral wall of the cylinder body 4, so that the penetration depth of the electric drill 15 can be conveniently mastered.
In the utility model, when the size of the test piece 1 is larger, the plurality of groups of magnetic seats 12 are adsorbed on the top of the test piece 1 to finish fixing, when the test piece 1 is in a strip shape, the two groups of magnetic seats 12 in the same direction are adsorbed on the top of the test piece 1 to finish fixing, when the size of the test piece 1 is smaller, the positions of the magnetic seats 12 are adjusted to ensure that the magnetic seats are adsorbed on the outer side surface of the test piece 1 to finish fixing, namely, the test piece 1 has no size limitation, and the application range is wide.
The embodiments of the present utility model have been described in detail with reference to the drawings, but the present utility model is not limited thereto, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present utility model.
Claims (7)
1. A portable stress tester comprises a test piece (1), a strain gauge (2) and a stress tester body (3); the device is characterized by further comprising a cylinder body (4), a supporting rod b (10), a lifting column (14) and a spring (16);
the strain gauge (2) is arranged on the test piece (1), and the strain gauge (2) is electrically connected with the stress tester body (3);
the outer walls of the bottom and the top of the cylinder body (4) are respectively provided with a supporting ring a (5) and a supporting ring b (6), and four groups of supporting rods a (7) are horizontally and equidistantly arranged on the outer wall of the supporting ring a (5); the top of the support rod b (10) is provided with a sleeve frame (8), the sleeve frame (8) is sleeved on the support rod a (7) in a sliding way, the sleeve frame (8) is provided with a locking bolt (13), and the bottom of the support rod b (10) is provided with an adsorption component connected with the test piece (1); the lifting column (14) penetrates through the cylinder body (4), an electric drill (15) is arranged at the bottom of the lifting column (14), a drill bit is vertically arranged at the bottom of the electric drill (15), and a pressing plate (17) is arranged at the top of the lifting column (14); the spring (16) is sleeved on the cylinder body (4), and two ends of the spring (16) are respectively connected with the supporting ring b (6) and the pressing plate (17).
2. A portable stress meter according to claim 1, characterized in that the support bar a (7) is a round bar or a square bar.
3. A portable stress meter according to claim 1, characterized in that the end of the support rod a (7) is provided with a baffle (9).
4. A portable stress meter according to claim 1, wherein the adsorption assembly comprises a universal joint (11) and a magnet holder (12); the universal joint (11) is arranged at the bottom of the supporting rod b (10), the magnetic base (12) is arranged at the bottom of the universal joint (11), and the magnetic base (12) is provided with a switch.
5. A portable stress meter according to claim 1, further comprising a stop lever (18) and a threaded sleeve (19); the limiting rods (18) are vertically arranged at the bottom of the pressing plate (17), a plurality of groups of limiting rods (18) are arranged, and the limiting rods (18) are positioned at the outer side of the supporting ring b (6); the thread sleeve (19) is sleeved on the cylinder body (4), and threads matched with the thread sleeve (19) are arranged on the peripheral wall of the cylinder body (4).
6. The portable stress measuring instrument according to claim 5, wherein a plurality of sets of auxiliary rotating rods (20) are horizontally arranged on the outer wall of the threaded sleeve (19).
7. The portable stress measuring instrument according to claim 5, wherein graduation marks (21) are vertically provided on the outer peripheral wall of the cylinder (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320158481.3U CN219391189U (en) | 2023-01-31 | 2023-01-31 | Portable stress tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320158481.3U CN219391189U (en) | 2023-01-31 | 2023-01-31 | Portable stress tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219391189U true CN219391189U (en) | 2023-07-21 |
Family
ID=87165528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320158481.3U Active CN219391189U (en) | 2023-01-31 | 2023-01-31 | Portable stress tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219391189U (en) |
-
2023
- 2023-01-31 CN CN202320158481.3U patent/CN219391189U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240319 Address after: No. 804, Building 2, China Merchants International E-City Office, No. 10 Xianlin East Road, Baohua Town, Jurong City, Zhenjiang City, Jiangsu Province, 212000 Patentee after: Spectral String Instrument (Jiangsu) Co.,Ltd. Country or region after: Zhong Guo Address before: Room B202, Building 2, No. 100, Lane 2891, Qilian Mountains South Road, Putuo District, Shanghai, 200331 Patentee before: Spectrum string testing technology (Shanghai) Co.,Ltd. Country or region before: Zhong Guo |