CN221100294U - Bending and compression testing machine - Google Patents
Bending and compression testing machine Download PDFInfo
- Publication number
- CN221100294U CN221100294U CN202322736044.8U CN202322736044U CN221100294U CN 221100294 U CN221100294 U CN 221100294U CN 202322736044 U CN202322736044 U CN 202322736044U CN 221100294 U CN221100294 U CN 221100294U
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- load
- folding
- bending
- movable
- fixed
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- 238000012360 testing method Methods 0.000 title claims abstract description 49
- 238000007906 compression Methods 0.000 title claims abstract description 35
- 230000006835 compression Effects 0.000 title claims abstract description 34
- 238000005452 bending Methods 0.000 title claims abstract description 31
- 230000003287 optical effect Effects 0.000 claims abstract description 5
- 238000009434 installation Methods 0.000 claims abstract description 4
- 230000002742 anti-folding effect Effects 0.000 claims description 35
- 238000005096 rolling process Methods 0.000 claims description 7
- 239000004568 cement Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000003028 elevating effect Effects 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model discloses a bending and compression resistant testing machine, which is technically characterized in that: including workstation and install anti-roll device, compressive device and the concrete test piece on the workstation side by side, set up load frame on the workstation, load frame includes stand and load crossbeam, anti-roll device includes anti-roll base, fixed support roller, movable support roller, anti-roll optical axis, anti-roll crossbeam, anti-roll sensor, connecting block and the anti-roll load roller of connecting block lower extreme installation, fixed slot and movable slot have been seted up respectively to anti-roll base, the diapire of movable slot includes the supporting part and the downward tilting part of self-supporting part to both sides slope of the level setting at middle part, movable support roller movable mounting is in the movable slot. According to the utility model, the support part and the inclined part are arranged, so that the concrete test piece can be inclined along with the pressed part on the movable groove after being pressed, and the torsional stress caused by the irregularity of the concrete test piece is eliminated.
Description
Technical Field
The utility model relates to concrete test equipment, in particular to a bending and compression resistant testing machine.
Background
The concrete fracture-resistant compression testing machine is mainly used for fracture-resistant compression strength test of cement, has the advantages of compact structure, simplicity in operation and the like, and can be used for testing the compression strength of cement in cement factories, building construction units and related specialized institutions and scientific research institutions, and can also be used for testing the compression strength of other nonmetallic materials.
In the flexural test, due to the fact that the concrete test piece is generally insufficient in precision, a certain inclination exists on the side face, the test piece is placed on the supporting round roller and slightly tilted, torsional stress is generated in the compression process, and the test precision of the flexural test is affected.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides a bending and compression resistant testing machine.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
The utility model provides an anti compression testing machine that rolls over, includes workstation and installs anti device, compression device and the concrete test piece of rolling over on the workstation side by side, set up load frame on the workstation, load frame includes stand and load crossbeam, the stand is fixed on the workstation, load crossbeam horizontal installation is at the stand top, anti upper end of rolling over device and compression device's upper end are fixed respectively on the load crossbeam, anti rolling over device is including fixing the anti base of rolling over the load crossbeam upside, install fixed support round roller and the movable support round roller on anti base, sliding fit wears to establish the anti roll over the optical axis of rolling over in anti base both sides, anti roll over crossbeam that anti roll over top set up, anti roll over load round roller of installing on anti roll over sensor lower extreme, fixed mounting is at anti roll over load round roller, fixed support round roller and the upper and lower both sides of movable support round roller of concrete test piece respectively, anti roll over base has seted up fixed slot and movable support round roller respectively, fixed support round roller installs in the inclined support round roller and inclined support round roller in the inclined portion, inclined support round roller and inclined portion in the inclined portion.
Preferably, the lower end of the anti-refraction shaft is connected with a lifting mechanism, and the lifting mechanism is arranged in the workbench.
Preferably, the mounting groove has been seted up to the downside of connecting block, the diapire middle part of mounting groove is provided with supporting platform and self-supporting platform towards the slope platform of both sides upward slope, anti load round roller that rolls over is installed in the mounting groove.
Preferably, positioning screw holes are formed in two sides of the mounting groove, positioning screws are inserted into the positioning screw holes in two sides of the mounting groove respectively, the front ends of the positioning screws are arranged to be conical, and the front ends of the positioning screws are abutted against the side wall of the anti-folding load round roller.
Preferably, the axial center of the positioning screw hole is lower than the axial center of the bending load resisting round roller.
Preferably, one side of the bending-resistant base is provided with two positioning rods, the concrete test piece is placed on the fixed supporting round roller and the movable supporting round roller, and the side wall is abutted to the positioning rods.
To sum up:
According to the technical scheme, the load frame is formed by the load cross beam arranged on the upright post, the anti-folding base fixed on the load cross beam, the anti-folding optical axis vertical to the anti-folding base, the anti-folding cross beam arranged at the top of the anti-folding optical axis, the anti-folding sensor arranged on the anti-folding cross beam and the load connecting block fixedly arranged at the lower end of the anti-folding sensor, so that the fixed supporting round roller, the movable supporting round roller and the anti-folding load round roller are mutually parallel in the axial direction, and the stability of the anti-folding load point of the concrete test piece is ensured.
Further, the bottom wall of the movable groove comprises a supporting part in the middle and a downward inclined part inclined from the supporting part to two sides, and the movable supporting round roller can incline to the inclined part along the supporting part in the vertical direction after being pressed so as to be attached to the lower side surface of the concrete test piece, so that the phenomenon that the lower side of the concrete test piece is tilted to be partially pressed, and the torsion stress caused by the tilting of the lower side of the concrete test piece is avoided, and the test precision is influenced; the bottom wall middle part of mounting groove is provided with supporting platform and self-supporting platform towards the tilt platform of both sides upward sloping, and anti load round roller that rolls over can follow supporting platform and want tilt platform to take place the slope in vertical direction after the pressurized to laminating concrete test piece upside, the local pressurized appears in the perk of concrete test piece upside, the torsional stress that causes is avoided appearing.
Further, the locating screw holes are formed in the two sides of the mounting groove, locating screws are inserted into the locating screw holes respectively, the front ends of the locating screws are arranged into conical shapes, the front ends of the locating screws are abutted against the side wall of the anti-folding load round roller, the axial center of the locating screw holes is lower than that of the anti-folding load round roller, the front ends of the locating screws are abutted against the lower side of the anti-folding load round roller in a abutted mode, the anti-folding load round roller can be inclined along the locating screws after being pressed, and the anti-folding load round roller is prevented from falling.
In addition, the setting of locating lever can be used for the location concrete test piece, makes the concrete test piece keep the level in the vertical direction.
Drawings
FIG. 1 is a schematic diagram of a bending and compression testing machine according to the present utility model;
FIG. 2 is a schematic diagram of a bending and compression testing machine according to the present utility model;
FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;
FIG. 4 is an enlarged view of the portion A of FIG. 3;
FIG. 5 is a schematic diagram III of a bending and compression testing machine according to the present utility model;
FIG. 6 is a cross-sectional view taken at B-B in FIG. 5;
Fig. 7 is a partial enlarged view of the outlet of fig. 6B.
Reference numerals: 1. a work table; 2. a column; 3. a load beam; 4. an anti-folding base; 5. a round roller is fixedly supported; 6. a movable supporting round roller; 7. an anti-refractive axis; 8. an anti-folding beam; 9. an anti-folding sensor; 10. a connecting block; 11. a roll-over load resistant round roller; 12. a support platform; 13. tilting the platform; 14. a support part; 15. an inclined portion; 16. and a positioning rod.
Detailed Description
A bending and compression testing machine according to the utility model is further described with reference to fig. 1-7.
The bending and compression testing machine comprises a workbench 1, and bending and compression devices, compression devices and concrete test pieces which are arranged on the workbench 1 side by side, wherein a load frame is arranged on the workbench 1, the load frame comprises a stand column 2 and a load beam 3, the stand column 2 is fixed on the workbench 1, the load beam 3 is horizontally arranged at the top of the stand column 2, the upper ends of the bending and compression devices and the upper ends of the compression devices are respectively fixed on the load beam 3, the bending and compression devices comprise a bending base 4 fixed on the upper side of the load beam 3, a fixed supporting round roller 5 and a movable supporting round roller 6 which are arranged on the bending base 4, bending and compression beams 8 which are vertically arranged on two sides of the bending base 4 in a sliding fit manner, bending and compression sensors 9 arranged on the bending and compression beams 8, a load connecting block 10 fixedly arranged at the lower end of the bending and compression sensors 9, and bending and load round rollers 11 arranged at the lower end of the connecting block 10, the lower side of the connecting block 10 is provided with a mounting groove, the middle part of the bottom wall of the mounting groove is provided with a supporting platform 12 and an inclined platform 13 which is inclined upwards from the supporting platform 12 towards two sides, the anti-folding load round roller 11 is arranged in the mounting groove, two sides of the mounting groove are provided with positioning screw holes, positioning screws are respectively inserted into the positioning screw holes on two sides, the front ends of the positioning screws are arranged into a cone shape, the front ends of the positioning screws are abutted against the side wall of the anti-folding load round roller 11, the axial center height of the positioning screw holes is lower than that of the anti-folding load round roller 11, the fixed supporting round roller 5 and the movable supporting round roller 6 are respectively abutted against the upper side and the lower side of a concrete test piece, the anti-folding base 4 is respectively provided with a fixed groove and a movable groove, the fixed support round roller 5 is installed in the fixed slot, the diapire of movable slot includes the supporting part 14 and the self-supporting part 14 of the level setting in middle part to the decurrent tilting part of both sides 15, movable support round roller 6 movable mounting is in the movable slot, anti-refraction axle 7 lower extreme is connected with elevating system, elevating system installs in workstation 1, elevating system includes driving motor, drive screw, drive nut and lift sleeve, driving motor fixes on workstation 1, drive screw passes through the speed reducer and connects on driving motor, the drive screw lower extreme is contradicted in workstation 1 bottom, drive nut and drive screw thread fit, lift sleeve welded fastening is on drive nut, anti-refraction axle 7 is fixed on the lift sleeve.
Further, two locating rods 16 are arranged on one side of the bending-resistant base 4, the concrete test piece is placed on the fixed supporting round roller 5 and the movable supporting round roller 6, and the side wall is abutted to the locating rods 16.
The above description is only a preferred embodiment of the present utility model, and the protection scope of the present utility model is not limited to the above examples, and all technical solutions belonging to the concept of the present utility model belong to the protection scope of the present utility model. It should be noted that modifications and adaptations to the present utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.
Claims (6)
1. The utility model provides an anti compression testing machine that rolls over, includes workstation and installs anti device, compression device and the concrete test piece of rolling over on the workstation side by side, characterized by: the utility model provides a concrete test piece, including the workstation, the workstation is last to set up load frame, load frame includes stand and load crossbeam, the stand is fixed on the workstation, load crossbeam horizontal installation is at the stand top, the upper end of anti-folding device and the upper end of resistance to compression device are fixed respectively on the load crossbeam, anti-folding device is including fixing the anti base of load crossbeam upside, install fixed support roller and the movable support roller on anti-folding base, slip fit wears to establish the anti-folding optical axis in anti-folding base both sides perpendicularly, anti-folding sensor of anti-folding beam top setting, anti-folding load roller of installation on the anti-folding sensor's load connecting block and the connecting block lower extreme of fixed mounting, anti-folding load roller, fixed support roller and movable support roller are contradicted respectively in the upper and lower both sides of concrete test piece, fixed slot and movable slot have been seted up respectively to anti-folding base, the fixed support roller is installed in the fixed slot, the both sides that the diapire of movable slot includes the horizontal setting of middle part and self-supporting portion incline to the movable support roller in the movable slot.
2. The bending and compression testing machine according to claim 1, wherein: the lower end of the anti-refraction shaft is connected with a lifting mechanism, and the lifting mechanism is installed in the workbench.
3. The bending and compression testing machine according to claim 2, wherein: the mounting groove has been seted up to the downside of connecting block, the diapire middle part of mounting groove is provided with supporting platform and self-supporting platform towards the slope platform of both sides upward sloping, anti load round roller of rolling over is installed in the mounting groove.
4. A bending and compression testing machine according to claim 3, characterized in that: positioning screw holes are formed in two sides of the mounting groove, positioning screws are inserted into the positioning screw holes in two sides of the mounting groove respectively, the front ends of the positioning screws are conical, and the front ends of the positioning screws are abutted against the side wall of the anti-folding load round roller.
5. The bending and compression testing machine according to claim 4, wherein: the axial center of the positioning screw hole is lower than the axial center of the bending load resistant round roller.
6. The bending and compression testing machine according to claim 1, wherein: and one side of the bending-resistant base is provided with two top positioning rods, the concrete test piece is placed on the fixed supporting round roller and the movable supporting round roller, and the side wall is abutted to the positioning rods.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322736044.8U CN221100294U (en) | 2023-10-12 | 2023-10-12 | Bending and compression testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322736044.8U CN221100294U (en) | 2023-10-12 | 2023-10-12 | Bending and compression testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221100294U true CN221100294U (en) | 2024-06-07 |
Family
ID=91320076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322736044.8U Active CN221100294U (en) | 2023-10-12 | 2023-10-12 | Bending and compression testing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221100294U (en) |
-
2023
- 2023-10-12 CN CN202322736044.8U patent/CN221100294U/en active Active
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