CN202886204U - Axial deformation press - Google Patents
Axial deformation press Download PDFInfo
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- CN202886204U CN202886204U CN 201220220800 CN201220220800U CN202886204U CN 202886204 U CN202886204 U CN 202886204U CN 201220220800 CN201220220800 CN 201220220800 CN 201220220800 U CN201220220800 U CN 201220220800U CN 202886204 U CN202886204 U CN 202886204U
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- pressure block
- axial deformation
- pressing machine
- displacement transducer
- lower pressure
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Abstract
The utility model provides an axial deformation press which comprises a host machine, an upper bearing block, a lower bearing block and a hydraulic driving device; the host machine comprises a chassis, two vertical columns, an upper beam and a pressure sensor; the two vertical columns are fixed on the chassis; the upper beam is horizontally installed between the two vertical columns; the upper bearing block is fixed below the upper beam; the pressure sensor measures the pressure between the upper bearing block and the upper beam; the lower bearing block is installed in the chassis; the hydraulic driving device drives the lower bearing block to move vertically on the chassis up and down; one side of the upper bearing block, which is opposite to the lower bearing block, is provided with a horizontal plane for clamping a test sample; the axial deformation press further comprises a measuring device for measuring the deformation amount of the test sample at the vertical direction. According to the axial deformation press provided by the utility model, the measuring device capable of reading the deformation amount at the vertical direction is installed on the press, and can accurately measure the lateral-confinement-free compressive strength when the axial deformation of a bituminous mixture test sample is certain value at a certain temperature point.
Description
Technical field
The utility model relates to the fields of measurement of construction material, particularly a kind of axial deformation pressing machine.
Background technology
At present, along with the continuous thickening of bituminous pavement, the rut disease of bituminous pavement also more and more receives people's concern, and the unconfined compressive strength of the asphalt deformation size corresponding with it also more and more obtains insider's generally attention.
In existing pressing machine testing equipment, in the time of can't accurately measuring the bitumen mixture specimen axial deformation for certain certain value, the size of bitumen mixture specimen unconfined compressive strength when certain temperature definite value.
The utility model content
In view of this, the utility model provides a kind of axial deformation pressing machine, it is by reading the measuring equipment of vertical direction deformation quantity in the pressing machine installing, can accurately measure when certain temperature spot the unconfined compressive strength value of bitumen mixture specimen when axial deformation is certain definite value.
A kind of axial deformation pressing machine that the utility model provides comprises main frame, upper pressure block, lower pressure block and fluid pressure drive device,
Described main frame comprises cabinet, two columns, upper beam and pressure transducers, two columns are fixed on the cabinet vertically, put the beams in place and flatly be installed between two columns, described upper pressure block is fixed in the below of upper beam, pressure between pressure transducer is installed in described upper pressure block and puts the beams in place, in measurements between pressure block and the upper beam
Described lower pressure block is installed in cabinet, it is lower mobile in the vertical direction on cabinet that described fluid pressure drive device drives this time pressure block, the side that upper pressure block is relative with lower pressure block has the horizontal plane for the clamping sample, and two described horizontal planes can be bonded to each other;
This axial deformation pressing machine further comprises the measurement mechanism of the deformation quantity of measuring the sample vertical direction.
Preferably, described measurement mechanism is rule, and this rule is installed in one of them column surface,
This axial deformation pressing machine further comprises pointer, and this pointer is installed in lower pressure block, and described rule is pointed in its end.
Preferably, the end of described pointer has the magnifier that amplifies described rule scale.
Preferably, described measurement mechanism is displacement transducer, and this displacement transducer is fixed in the inboard of one of them column, measures the change in displacement value of described lower pressure block.
Preferably, described measurement mechanism is displacement transducer, and this displacement transducer is fixed in described upper pressure block, measures the change in displacement value of described lower pressure block.
Preferably, described measurement mechanism is displacement transducer, and this displacement transducer is fixed in described lower pressure block, measures the change in displacement value of this time pressure block.
Preferably, described measurement mechanism is displacement transducer, and this displacement transducer is fixed in described cabinet, measures the change in displacement value of described lower pressure block.
In axial deformation pressing machine of the present utility model, it is by reading the measuring equipment of vertical direction deformation quantity in the pressing machine installing, can accurately measure when certain temperature spot the unconfined compressive strength value of bitumen mixture specimen when axial deformation is certain definite value.
Description of drawings
Fig. 1 is the structural representation of the first embodiment of axial deformation pressing machine of the present utility model;
Fig. 2 is the structural representation of the second embodiment of axial deformation pressing machine of the present utility model;
Fig. 3 is the structural representation of the 3rd embodiment of axial deformation pressing machine of the present utility model;
Fig. 4 is the structural representation of the 4th embodiment of axial deformation pressing machine of the present utility model.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, referring to the accompanying drawing embodiment that develops simultaneously, the utility model is further described.
In the utility model, by can read the measuring equipment of vertical direction deformation quantity in the pressing machine installing, can accurately measure when certain temperature spot the unconfined compressive strength value of bitumen mixture specimen when axial deformation is certain definite value.
Fig. 1 is the structural representation of the first embodiment of axial deformation pressing machine of the present utility model.As shown in Figure 1, axial deformation pressing machine of the present utility model comprises main frame, upper pressure block 103, lower pressure block 105 and fluid pressure drive device.
Wherein, main frame comprises cabinet 114, two columns 110, upper beam 101 and pressure transducers 102, two columns 110 are fixed on the cabinet 114 vertically, upper beam 101 flatly is installed between two columns 106 and 110, upper pressure block 103 is fixed in the below of upper beam 101, pressure transducer 102 is installed in pressure block 103 and puts the beams in place between 101, is used for measuring the pressure between upper pressure block and the upper beam.
The measurement mechanism of this measurement sample deformation quantity vertically can adopt existing multiple different measurement mechanism, and the utility model carries out following explanation as an example of rule and two kinds of devices of displacement transducer example to structure and the method for operating of axial deformation pressing machine.
The first embodiment
Fig. 1 is the structural representation of the first embodiment of axial deformation pressing machine of the present utility model.As shown in Figure 1, the measurement mechanism that is used for measurement sample deformation quantity vertically is rule 106, and this rule can be arranged at the surface of one of them column 110, or one of them column is set to surface graduated scale column at quarter.
Correspondingly, axial deformation pressing machine of the present utility model further comprises the pointer 107 that is used to indicate scale value, and rule 106 is pointed in the end of this pointer 107.
Preferably, because the axial deformation amount of sample need to rely on the scale that manually reads rule 106, so the end of pointer 107 can further be provided for the magnifier of the scale of scale-amplifying chi 106.
In the utility model, because the position of upper pressure block 103 is fixed, and lower pressure block 105 carrying samples 104 move towards the direction of upper pressure block 103, therefore pointer 107 is arranged on the lower pressure block 105, be used for measuring the displacement variable of lower pressure block 105, namely measure the axial deformation amount of sample 104.
The step that the axial deformation pressing machine of present embodiment is measured the axial deformation amount of sample is:
(1), sample 104 is placed on the lower pressure block 105 of pressing machine, sample 104 needs the centrally aligned with the lower pressure block 105 of pressing machine, and end face was vertical when sample 104 needed pressure-bearing surfaces with moulding.
(2), press the "start" button of control device 111, primer fluid hydraulic driver.Close oil return valve 112, slowly open and send fuel tap 113, speed control on request send fuel tap to load, and drives lower pressure block 105 sample 104 is held up.With upper pressure block 103 contacted, until test specimen 104 breaks or reaches the regulation deformation values, the liquid crystal panel displayed value of control device 111 was pressure peak from sample 104.Liquid crystal screen display test specimen is from being loaded to the curve that breaks simultaneously.In this process, by pointer 107, manually read two place's scales of rule 106: the scale when sample 104 begins to contact with upper pressure block 103 and sample 104 break or the scale when reaching the regulation deformation values, and both subtract each other the axial deformation amount that obtains sample 104.
(3), open oil return valve 112, close and send fuel tap 113.
(4), remove the test specimen fragment, put into second test specimen, repeating step (1) ~ (3).
(5), press " printing " key and print whole detection data contents.
(6), off-test, under test mode, press " stopping " key on the panel of control device 111, the stop solution hydraulic driver.
Operation steps by above this first embodiment can be found out, the axial deformation pressing machine of present embodiment is by arranging the rule that can read the vertical direction deformation quantity, can measure the axial deformation amount of sample, by changing the loading amount, can accurately measure when certain temperature spot the unconfined compressive strength value of bitumen mixture specimen when axial deformation is certain definite value.
The second embodiment
Fig. 2 is the structural representation of the second embodiment of axial deformation pressing machine of the present utility model.As shown in Figure 2, be displacement transducer 206 for the measurement mechanism of measuring sample deformation quantity vertically.In the present embodiment, displacement transducer 206 uses stationary installation 207 to be fixed in the inboard of one of them column 210, for the displacement variable of measuring lower pressure block 205, namely measures the axial deformation amount of sample 204.Displacement transducer 206 measured displacements can transfer to control device 211, and show by the display panels of control device 211.
The step that the axial deformation pressing machine of present embodiment is measured the axial deformation amount of sample is:
(1), sample 204 is placed on the lower pressure block 205 of pressing machine, sample 204 needs the centrally aligned with the lower pressure block 205 of pressing machine, and end face was vertical when sample 204 needed pressure-bearing surfaces with moulding.
(2), press the "start" button of control device 211, primer fluid hydraulic driver.Close oil return valve 212, slowly open and send fuel tap 213, speed control on request send fuel tap to load, and drives lower pressure block 205 sample 204 is held up.With upper pressure block 203 contacted, until test specimen 204 breaks, the liquid crystal panel displayed value of control device 211 was pressure peak from sample 204.When simultaneously liquid crystal screen display test specimen breaks from being loaded to or reach the curve of regulation deformation values.In this process, the reading zero clearing of displacement transducer 206 when sample 204 begins to contact with upper pressure block 203, displacement transducer 206 can read the displacement variable of lower pressure block 203 when sample 204 broke, and namely obtained the axial deformation amount of sample 204.
(3), open oil return valve 212, close and send fuel tap 213.
(4), remove the test specimen fragment, put into second test specimen, repeating step (1) ~ (3).
(5), press " printing " key and print whole detection data contents.
(6), off-test, under test mode, press " stopping " key on the panel of control device 211, the stop solution hydraulic driver.
In the fluid pressure drive device of present embodiment, can further increase the break-make that a solenoid valve is controlled oil return valve 212 and sent fuel tap 213, then by displacement that displacement transducer 206 is read as the FEEDBACK CONTROL condition, can realize the automatic operation of axial deformation pressing machine.
Operation steps by above this second embodiment can be found out, the axial deformation pressing machine of present embodiment is by arranging the displacement transducer that can read the vertical direction deformation quantity, can automatically measure the axial deformation amount of sample, more accurate than manual read read off, eliminated the error effect that manually reads.And by changing the loading amount, can accurately measure when certain temperature spot the unconfined compressive strength value of bitumen mixture specimen when axial deformation is certain definite value.
The 3rd embodiment
Fig. 3 is the structural representation of the 3rd embodiment of axial deformation pressing machine of the present utility model.As shown in Figure 3, be displacement transducer 306 for the measurement mechanism of measuring sample deformation quantity vertically.In the present embodiment, displacement transducer 306 uses stationary installation 307 to be fixed in any side of pressure block 303, for the displacement variable of measuring lower pressure block 305, namely measures the axial deformation amount of sample 304.Displacement transducer 306 measured displacements can transfer to control device 311, and show by the display panels of control device 311.
Similarly, in the present embodiment, displacement transducer 306 also can use stationary installation 307 to be fixed in any side of lower pressure block 305, for the displacement variable of measuring lower pressure block 305, namely measures the axial deformation amount of sample 304.Displacement transducer 306 measured displacements can transfer to control device 311, and show by the display panels of control device 311.
The operation steps of present embodiment is identical with aforementioned two embodiment, does not repeat them here.
The 4th embodiment
Fig. 4 is the structural representation of the 4th embodiment of axial deformation pressing machine of the present utility model.As shown in Figure 4, be displacement transducer 406 for the measurement mechanism of measuring sample deformation quantity vertically.In the present embodiment, displacement transducer 406 uses stationary installation 407 to be fixed on the cabinet 414, the side of lower pressure block 405 has an indicating device that exposes 415, the pointer of displacement transducer 406 is aimed at this indicating device 415, be used for measuring the displacement variable of lower pressure block 405, namely measure the axial deformation amount of sample 404.Displacement transducer 406 measured displacements can transfer to control device 411, and show by the display panels of control device 411.
The operation steps of present embodiment is identical with previous embodiment, does not repeat them here.
In the utility model, by can read the measuring equipment of vertical direction deformation quantity in the pressing machine installing, can accurately measure when certain temperature spot the unconfined compressive strength value of bitumen mixture specimen when axial deformation is certain definite value.It is simple in structure, processing ease, and can realize automatic operation.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.
Claims (7)
1. an axial deformation pressing machine is characterized in that, comprises main frame, upper pressure block, lower pressure block and fluid pressure drive device,
Described main frame comprises cabinet, two columns, upper beam and pressure transducers, two columns are fixed on the cabinet vertically, put the beams in place and flatly be installed between two columns, described upper pressure block is fixed in the below of upper beam, pressure between pressure transducer is installed in described upper pressure block and puts the beams in place, in measurements between pressure block and the upper beam
Described lower pressure block is installed in cabinet, it is lower mobile in the vertical direction on cabinet that described fluid pressure drive device drives this time pressure block, the side that upper pressure block is relative with lower pressure block has the horizontal plane for the clamping sample, and two described horizontal planes can be bonded to each other;
This axial deformation pressing machine further comprises the measurement mechanism of the deformation quantity of measuring the sample vertical direction.
2. axial deformation pressing machine according to claim 1 is characterized in that, described measurement mechanism is rule, and this rule is installed in one of them column surface,
This axial deformation pressing machine further comprises pointer, and this pointer is installed in lower pressure block, and described rule is pointed in its end.
3. axial deformation pressing machine according to claim 2 is characterized in that, the end of described pointer has the magnifier that amplifies described rule scale.
4. axial deformation pressing machine according to claim 1 is characterized in that, described measurement mechanism is displacement transducer, and this displacement transducer is fixed in the inboard of one of them column, measures the change in displacement value of described lower pressure block.
5. axial deformation pressing machine according to claim 1 is characterized in that, described measurement mechanism is displacement transducer, and this displacement transducer is fixed in described upper pressure block, measures the change in displacement value of described lower pressure block.
6. axial deformation pressing machine according to claim 1 is characterized in that, described measurement mechanism is displacement transducer, and this displacement transducer is fixed in described lower pressure block, measures the change in displacement value of this time pressure block.
7. axial deformation pressing machine according to claim 1 is characterized in that, described measurement mechanism is displacement transducer, and this displacement transducer is fixed in described cabinet, measures the change in displacement value of described lower pressure block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220220800 CN202886204U (en) | 2012-05-16 | 2012-05-16 | Axial deformation press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220220800 CN202886204U (en) | 2012-05-16 | 2012-05-16 | Axial deformation press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202886204U true CN202886204U (en) | 2013-04-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220220800 Expired - Lifetime CN202886204U (en) | 2012-05-16 | 2012-05-16 | Axial deformation press |
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| Country | Link |
|---|---|
| CN (1) | CN202886204U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198246A (en) * | 2014-09-02 | 2014-12-10 | 辽宁科技大学 | Unconfined compressive strength part and demolding and strength measuring integrated testing machine |
| CN106404545A (en) * | 2016-11-21 | 2017-02-15 | 天津尚吉液压设备有限公司 | Stress and strain measurement system |
| CN109696368A (en) * | 2019-01-30 | 2019-04-30 | 济南鑫光试验机制造有限公司 | A kind of three axis fatigue tester of pitch |
-
2012
- 2012-05-16 CN CN 201220220800 patent/CN202886204U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198246A (en) * | 2014-09-02 | 2014-12-10 | 辽宁科技大学 | Unconfined compressive strength part and demolding and strength measuring integrated testing machine |
| CN106404545A (en) * | 2016-11-21 | 2017-02-15 | 天津尚吉液压设备有限公司 | Stress and strain measurement system |
| CN109696368A (en) * | 2019-01-30 | 2019-04-30 | 济南鑫光试验机制造有限公司 | A kind of three axis fatigue tester of pitch |
| CN109696368B (en) * | 2019-01-30 | 2020-10-30 | 济南鑫光试验机制造有限公司 | Asphalt triaxial fatigue testing machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |