CN210005354U - strain control type compressive strength instrument with counting function - Google Patents
strain control type compressive strength instrument with counting function Download PDFInfo
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- CN210005354U CN210005354U CN201920769419.1U CN201920769419U CN210005354U CN 210005354 U CN210005354 U CN 210005354U CN 201920769419 U CN201920769419 U CN 201920769419U CN 210005354 U CN210005354 U CN 210005354U
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- sensing module
- compressive strength
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- worm wheel
- rocking handle
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Abstract
The utility model discloses an have count function strain control formula compressive strength appearance, including meter circle device, drive mechanism, stress sensing module and displacement sensing module, meter circle device sets up in the lower extreme side of compressive strength appearance to adopt meter circle ware, this meter circle ware's pivot and main shaft pass through the coupling joint and are connected, drive mechanism includes worm wheel, worm, hand wheel rocking handle and lifter, worm and hand wheel rocking handle fixed connection, the hand wheel rocking handle sets up in the outer end of meter circle device to be connected with meter circle device, the bottom of lifter sets up at the worm wheel inner chamber, and with worm wheel inner chamber fixed connection, stress sensing module sets up in the upper end of compressive strength appearance to fixed connection is under the crossbeam, displacement sensing module sets up in the lower part of stress sensing module to connect under fixed the bottom of displacement sensing module and add the pressure plate.
Description
Technical Field
The utility model relates to an unconfined compressive strength measuring instrument especially relates to kinds of unconfined compressive strength detecting instrument who is used for having the tally function.
Background
The unconfined compressive strength is the ultimate strength of the sample for resisting axial pressure under the condition of no lateral pressure, and has important significance on projects such as roads and the like. In the unconfined compressive strength medium test, under the condition of not applying any lateral pressure, axial pressure is usually applied to a cylindrical sample until the sample is sheared and damaged, the axial strain is calculated and determined by the number of turns of a hand wheel and axial displacement reading recorded by a dial indicator, and data of a force measuring meter and the dial indicator are recorded at each strain point. Therefore, the process of manually recording the number of turns of the hand wheel rocking handle is very complicated according to engineering experience because the number of turns is the gravity center of unconfined compressive strength measurement. For example, in the conventional compression strength test of fine soil, the number of turns is more than 300.
The circle counting method of other strain control type unconfined compressive strength instruments in the market at present adopts manual counting, the traditional circle counting method is complicated in steps, circle counting errors are easy to occur, and finally measurement experiment data errors are caused, so that unconfined compressive strength instruments capable of automatically counting are very necessary to be designed.
Disclosure of Invention
For solving the technical problem, the utility model aims at providing kinds of be used for having the unconfined compressive strength appearance of tally function, this instrument circle ware is installed on the hand wheel rocking handle, thereby can realize coaxial rotation and take notes hand wheel number of turns function, and the number of turns of hand wheel rocking handle is the number of turns of circle ware promptly, can save the loaded down with trivial details improvement measurement of efficiency by a wide margin of manual count, can guarantee experimental data's reliability simultaneously again:
the purpose of the utility model is realized through the following technical scheme:
strain control type compressive strength meters with counting function, comprising a circle counting device, a transmission mechanism, a stress sensing module and a displacement sensing module;
the lap counting device is arranged on the side face of the lower end of the compressive strength meter, a lap counting device (105) is adopted, and a rotating shaft of the lap counting device (105) is connected with the main shaft through a coupling (108);
the transmission mechanism comprises a worm wheel, a worm, a hand wheel rocking handle (106) and a lifting rod (107); the worm is fixedly connected with a hand wheel rocking handle (106); the hand wheel rocking handle (106) is arranged at the outer end of the circle counting device and is connected with the circle counting device; the bottom end of the lifting rod (107) is arranged in the inner cavity of the worm wheel and is fixedly connected with the inner cavity of the worm wheel;
the stress sensing module is arranged at the upper end of the compressive strength meter and is fixedly connected below the cross beam;
the displacement sensing module is arranged at the lower part of the stress sensing module, and a lower pressurizing plate (104) is fixedly connected at the bottom end of the displacement sensing module.
Compared with the prior art, or more embodiments of the present invention can have the following advantages:
have the unconfined compressive strength appearance of count function strain control formula, through design money meter circle ware devices, simple and easy, with low costs can improve experiment measurement efficiency by a wide margin, guarantee that measured data is accurate, it is very practical in unconfined compressive strength measurement experiment.
Drawings
FIG. 1 is a schematic structural diagram of a strain-controlled compression strength tester with a counting function.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the following will describe the embodiments of the present invention in detail with reference to the accompanying drawings.
As shown in figure 1, the strain control type compressive strength tester structure with the counting function comprises a ring counting device, a transmission mechanism, a stress sensing module and a displacement sensing module, wherein the ring counting device is arranged on the side face of the lower end of the compressive strength tester and adopts a ring counting device 105, a rotating shaft of the ring counting device 105 is connected with a main shaft through a coupling 108, the transmission mechanism comprises a worm wheel, a worm, a hand wheel rocking handle 106 and a lifting rod 107, the worm is fixedly connected with the hand wheel rocking handle 106, the hand wheel rocking handle 106 is arranged at the outer end of the ring counting device and is connected with the ring counting device, the bottom end of the lifting rod 107 is arranged in a worm wheel inner cavity and is fixedly connected with a worm wheel inner cavity through threads, the stress sensing module is arranged at the upper end of the compressive strength tester and is fixedly connected below a cross beam, and the displacement sensing module is arranged at the lower part of the stress sensing module and is connected with a fixed lower pressurizing plate 104 at the bottom end.
Thereby the display dial plate of above-mentioned circle meter is fixed and is realized coaxial rotation and record hand wheel number of turns function in the base side.
The stress sensing module consists of a dynamometer 101 for measuring axial stress; the displacement sensing module is composed of a dial indicator 103 and is used for measuring axial micro displacement.
The outer cavity of the worm wheel is tightly matched with the worm, and the inner cavity of the worm wheel is provided with an internal thread and is in threaded fit connection with the lifting rod 107 through the internal thread.
The upper end of the displacement sensing module is provided with an upper pressurizing plate 102.
The working process of the embodiment comprises ① preparing a test piece, making the test piece into a cylinder with approximately equal bottom surface, recording the radius and height of the test piece, ② placing the prepared test piece on a lower pressure plate of the strain control type unconfined compressive strength tester, rotating a hand wheel to enable the test piece to be in right contact with the upper pressure plate, adjusting the reading of a dial indicator of a dynamometer to be zero, ③ continuously rotating the hand wheel, driving a worm and gear mechanism to work by the hand wheel, driving a lifting rod to ascend by a worm wheel, observing the reading of a lap meter, recording the reading of the dial indicator and the reading of the dynamometer when the lap meter displays that the number of turns reaches the design number of turns, and ④ stopping the test when the dial indicator reaches the peak value or the reading is stable.
The device that this embodiment provided can see directly perceivedly that the meter circle ware module simple structure, practicality are strong, safe and reliable, can make full use of automatic meter circle advantage, guarantee that the number of turns record is accurate. The outstanding problem that the circling step is loaded down with trivial details, the mistake causes the error too big in the current unconfined intensity measurement experiment can be effectively solved, through circling ware automatic counting, the loaded down with trivial details improvement measurement of efficiency by a wide margin that can save manual count can guarantee experimental data's reliability simultaneously again.
Although the embodiments of the present invention have been described above, the description is only for the convenience of understanding the present invention, and the present invention is not limited thereto. It will be apparent to persons skilled in the relevant art that various changes in form and detail can be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (4)
1, strain control type compressive strength meters with counting function, which are characterized by comprising a circle counting device, a transmission mechanism, a stress sensing module and a displacement sensing module;
the lap counting device is arranged on the side face of the lower end of the compressive strength meter, a lap counting device (105) is adopted, and a rotating shaft of the lap counting device (105) is connected with the main shaft through a coupling (108);
the transmission mechanism comprises a worm wheel, a worm, a hand wheel rocking handle (106) and a lifting rod (107); the worm is fixedly connected with a hand wheel rocking handle (106); the hand wheel rocking handle (106) is arranged at the outer end of the circle counting device and is connected with the circle counting device; the bottom end of the lifting rod (107) is arranged in the inner cavity of the worm wheel and is fixedly connected with the inner cavity of the worm wheel;
the stress sensing module is arranged at the upper end of the compressive strength meter and is fixedly connected below the cross beam;
the displacement sensing module is arranged at the lower part of the stress sensing module, and a lower pressurizing plate (104) is fixedly connected at the bottom end of the displacement sensing module.
2. The strain controlled compressive strength gauge with counting function according to claim 1, wherein the stress sensing module is composed of a load cell (101) to measure axial stress; the displacement sensing module consists of a dial indicator (103) and is used for measuring the axial micro displacement.
3. The strain control type compressive strength instrument with the counting function as claimed in claim 1, wherein the outer cavity of the worm wheel is tightly matched with the worm, and the inner cavity of the worm wheel is provided with internal threads and is in threaded fit connection with the lifting rod (107) through the internal threads.
4. The strain controlled compression strength gauge with counting function according to claim 1, wherein the upper end of the displacement sensing module is provided with an upper pressurizing plate (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920769419.1U CN210005354U (en) | 2019-05-27 | 2019-05-27 | strain control type compressive strength instrument with counting function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920769419.1U CN210005354U (en) | 2019-05-27 | 2019-05-27 | strain control type compressive strength instrument with counting function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210005354U true CN210005354U (en) | 2020-01-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920769419.1U Active CN210005354U (en) | 2019-05-27 | 2019-05-27 | strain control type compressive strength instrument with counting function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210005354U (en) |
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2019
- 2019-05-27 CN CN201920769419.1U patent/CN210005354U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 518053 1st floor, No.13, Shenyun Road, Nanshan District, Shenzhen City, Guangdong Province Patentee after: Taike Technology Co.,Ltd. Address before: 518053 1st floor, No.13, Shenyun Road, Nanshan District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN TAIKE TEST CO.,LTD. |
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| CP01 | Change in the name or title of a patent holder |