CN210513941U - Building material tensile testing machine based on double screws - Google Patents
Building material tensile testing machine based on double screws Download PDFInfo
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- CN210513941U CN210513941U CN201921412065.1U CN201921412065U CN210513941U CN 210513941 U CN210513941 U CN 210513941U CN 201921412065 U CN201921412065 U CN 201921412065U CN 210513941 U CN210513941 U CN 210513941U
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- 238000009864 tensile test Methods 0.000 title claims abstract description 23
- 239000004566 building material Substances 0.000 title claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims abstract description 98
- 230000001360 synchronised effect Effects 0.000 claims abstract description 43
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 238000012360 testing method Methods 0.000 claims description 21
- 238000000034 method Methods 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 12
- 239000003638 chemical reducing agent Substances 0.000 claims description 11
- 239000004035 construction material Substances 0.000 claims 5
- 238000009661 fatigue test Methods 0.000 abstract description 5
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The utility model provides a building material tensile testing machine based on twin-screw, the top of bottom box is fixed with supporting platform, and supporting platform's top symmetry is fixed with first supporting box and second supporting box, is fixed with the roof at the top of first supporting box and second supporting box, and parallel support installs first drive screw and second drive screw between roof and the supporting platform, install tensile seat through the screw drive cooperation on first drive screw and the second drive screw, the top central point of tensile seat and the bottom central point of roof respectively through connecting rod fixed mounting be used for treating tensile test piece tight anchor clamps subassembly; the bottom end of the first transmission screw rod is connected with a power device for driving the first transmission screw rod to rotate, and the first transmission screw rod is connected with the second transmission screw rod through a synchronous belt mechanism. The tensile testing machine can be used for tensile fatigue test of building materials, adopts double screws and a synchronous driving mode, ensures the stability of double screw transmission, and effectively prevents the problem of jamming of the double screws.
Description
Technical Field
The utility model belongs to timber apron performance detection device field among the building engineering especially relates to a building material tensile test machine based on twin-screw.
Background
In the process of detecting the tensile fatigue strength of building materials, a tensile testing machine is required to be used, for example, CN 208171743U specifically discloses a strength test detector for fiber fabrics, which is used for measuring the tensile strength, in the tensile testing machine, although a transmission mode of double screw rods is adopted, independent motors are respectively adopted between two screw rods to drive the tensile testing machine, in the specific use process, if the motors rotate asynchronously, the interference between the two screw rods can be caused, and further the problem of jamming between two nut sleeves on the screw rods is caused, so that the normal sliding of the screw rods can not be caused, and even the equipment can be damaged.
Although a test device for tensile fatigue test of a concrete filled steel tube member is disclosed in CN 106289971 a, the test device changes the traditional hydraulic transmission and has the advantages of good transmission effect, high safety performance, energy saving, environmental protection and the like; however, in the test device, the synchronous belt is connected in the ball screw, the tensile clamp of the driving clamp moves through synchronous belt, obviously, the tensile force provided by adopting the synchronous belt cannot be used for high-strength stretching, and the structure of the test device has defects and cannot realize a tensile test.
SUMMERY OF THE UTILITY MODEL
For solving above technical problem, the utility model provides a building material tensile test machine based on twin-screw, this tensile test machine can be used for building material's tensile fatigue test, and it adopts the twin-screw and adopts the synchronous drive mode, has guaranteed twin-screw driven stability, effectively prevents that it from taking place the dead problem of card, has guaranteed whole experimental normal clear.
In order to realize the technical characteristics, the purpose of the utility model is realized as follows: the building material tensile testing machine based on the double screws comprises a bottom box body, wherein a supporting platform is fixed at the top of the bottom box body, a first supporting box body and a second supporting box body are symmetrically fixed at the top of the supporting platform, top plates are fixed at the tops of the first supporting box body and the second supporting box body, a first transmission screw and a second transmission screw are supported and installed between the top plates and the supporting platform in parallel, a tensile seat is installed on the first transmission screw and the second transmission screw in a matched mode through thread transmission, and a clamp assembly used for clamping a test piece to be tensile is fixedly installed at the top center position of the tensile seat and the bottom center position of the top plate through connecting rods; the bottom end of the first transmission screw rod is connected with a power device for driving the first transmission screw rod to rotate, and the first transmission screw rod and the second transmission screw rod are connected through a synchronous belt mechanism and are enabled to rotate synchronously.
The power device comprises a motor fixed inside the bottom box body, an output shaft of the motor is connected with the speed reducer, and an output shaft of the speed reducer is connected with the short connecting shaft at the bottom end of the first transmission screw rod through a sleeve coupling.
The synchronous belt mechanism comprises a driving synchronous belt wheel arranged on the first transmission screw rod, and the driving synchronous belt wheel is in meshing transmission with a driven synchronous belt wheel arranged on the second transmission screw rod through a synchronous belt.
The lower end of the first transmission screw rod is mounted on the supporting platform through a first thrust ball bearing, the top of the first transmission screw rod is mounted on the top plate through a second thrust ball bearing, and the first transmission screw rod and a first nut seat fixed on the stretching seat form threaded transmission fit.
The lower end of the second transmission screw rod is mounted on the supporting platform through a third thrust ball bearing, the top of the second transmission screw rod is mounted on the top plate through a fourth thrust ball bearing, and the second transmission screw rod and a second nut seat fixed on the stretching seat form threaded transmission fit.
The clamp assembly comprises a clamp seat connected with the connecting rod, a T-shaped groove is machined in the clamp seat, a first clamping block and a second clamping block are installed on the T-shaped groove in a sliding fit mode, the first clamping block and the second clamping block form a thread transmission fit through a clamping screw, and the first clamping block and the second clamping block are driven to clamp a test block to be subjected to tensile testing.
The utility model discloses there is following beneficial effect:
1. this tensile testing machine can be used for building material's tensile fatigue test, and it adopts the twin-screw and adopts the synchronous drive mode, has guaranteed twin-screw driven stability, effectively prevents it and takes place the dead problem of card, has guaranteed whole experimental normal clear.
2. The power device mainly provides stretching power, the motor drives the speed reducer in the working process, the output shaft of the speed reducer drives the first transmission screw, and the first transmission screw forms thread transmission fit with the first nut seat to finally drive the stretching seat to move.
3. Through foretell hold-in range mechanism, mainly used guarantees the synchronous rotation between first drive screw and the second drive screw, in the course of the work, drives initiative synchronous pulley through first drive screw, again by initiative synchronous pulley and hold-in range combined action drive second drive screw.
4. Can be in the use through foretell anchor clamps subassembly for treating the tight use of clamp of experimental test piece, in tensile test process, set up the test piece between first clamp splice and second clamp splice, then rotate and press from both sides tight screw, and then realize pressing from both sides tightly of test block through two clamp splices of tight screw drive.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a first perspective three-dimensional view of the present invention.
Fig. 2 is a second perspective three-dimensional view of the present invention.
Fig. 3 is a main sectional view of the present invention.
In the figure: the device comprises a motor 1, a speed reducer 2, a bottom box body 3, an output shaft 4, a sleeve coupling 5, a short connecting shaft 6, a synchronous belt 7, a driving synchronous belt pulley 8, a supporting platform 9, a first supporting box body 10, a first transmission screw 11, a stretching seat 12, a first nut seat 13, a driven synchronous belt pulley 14, a second supporting box body 15, a connecting rod 16, a clamp assembly 17, a second clamping block 18, a first clamping block 19, a clamping screw 20, a T-shaped groove 21, a clamp seat 22, a top plate 23, a second transmission screw 24, a second nut seat 25, a first thrust ball bearing 26, a second thrust ball bearing 27, a third thrust ball bearing 28 and a fourth thrust ball bearing 29.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
Referring to fig. 1-3, the building material tensile testing machine based on the twin-screw comprises a bottom box body 3, wherein a supporting platform 9 is fixed on the top of the bottom box body 3, a first supporting box body 10 and a second supporting box body 15 are symmetrically fixed on the top of the supporting platform 9, a top plate 23 is fixed on the tops of the first supporting box body 10 and the second supporting box body 15, a first transmission screw 11 and a second transmission screw 24 are supported between the top plate 23 and the supporting platform 9 in parallel, a tensile seat 12 is installed on the first transmission screw 11 and the second transmission screw 24 in a threaded transmission matching manner, and a clamp assembly 17 for clamping a test piece to be stretched is fixedly installed at the top center position of the tensile seat 12 and the bottom center position of the top plate 23 through connecting rods 16 respectively; the bottom end of the first transmission screw 11 is connected with a power device for driving the first transmission screw to rotate, and the first transmission screw 11 is connected with the second transmission screw 24 through a synchronous belt mechanism, so that the first transmission screw and the second transmission screw synchronously rotate. This tensile testing machine can be used for building material's tensile fatigue test, and it adopts the twin-screw and adopts the synchronous drive mode, has guaranteed twin-screw driven stability, effectively prevents it and takes place the dead problem of card, has guaranteed whole experimental normal clear. In specific working process, through the first drive screw 11 of power device drive, first drive screw 11 will be through synchronous drive second drive screw 24 of hold-in range mechanism, and then has guaranteed the synchronous rotation between first drive screw 11 and the second drive screw 24 to finally through the synchronous drive tensile seat 12 of the screw drive of two screw rods, effectively prevent the card dead problem that two screw rod transmissions asynchronous lead to.
Further, power device is including fixing motor 1 in bottom box 3 inside, the output shaft of motor 1 links to each other with reduction gear 2, output shaft 4 of reduction gear 2 passes through sleeve coupling 5 and links to each other with short connecting axle 6 of first drive screw 11 bottom. The power device mainly provides stretching power, in the working process, the motor 1 drives the speed reducer 2, the output shaft 4 of the speed reducer 2 drives the first transmission screw 11, the first transmission screw 11 forms thread transmission fit with the first nut seat 13, and finally the stretching seat 12 is driven to move.
Further, the synchronous belt mechanism comprises a driving synchronous belt wheel 8 arranged on the first transmission screw rod 11, and the driving synchronous belt wheel 8 is in meshing transmission with a driven synchronous belt wheel 14 arranged on the second transmission screw rod 24 through a synchronous belt 7. Through the synchronous belt mechanism, the synchronous rotation between the first transmission screw 11 and the second transmission screw 24 is ensured, in the working process, the first transmission screw 11 drives the driving synchronous belt pulley 8, and the driving synchronous belt pulley 8 and the synchronous belt 7 jointly act to drive the second transmission screw 24.
Further, the lower end of the first transmission screw 11 is mounted on the supporting platform 9 through a first thrust ball bearing 26, the top of the first transmission screw 11 is mounted on the top plate 23 through a second thrust ball bearing 27, and the first transmission screw 11 and the first nut seat 13 fixed on the stretching seat 12 form a threaded transmission fit. Through foretell bearing structure can guarantee the stable support of first drive screw 11, guarantee that it can rotate, thrust ball bearing makes it can bear the axial force of tensile in-process.
Further, the lower end of the second transmission screw 24 is mounted on the supporting platform 9 through a third thrust ball bearing 28, the top of the second transmission screw 24 is mounted on the top plate 23 through a fourth thrust ball bearing 29, and the second transmission screw 24 and the second nut seat 25 fixed on the stretching seat 12 form a threaded transmission fit. The stable support of the second transmission screw 24 can be ensured through the support structure, the second transmission screw can be ensured to rotate, and the thrust ball bearing can bear the axial force in the stretching process.
Further, anchor clamps subassembly 17 includes the anchor clamps seat 22 that links to each other with connecting rod 16, it has T type groove 21 to process on the anchor clamps seat 22, sliding fit installs first clamp splice 19 and second clamp splice 18 on T type groove 21, constitute screw thread transmission cooperation through clamping screw 20 between first clamp splice 19 and the second clamp splice 18 to it is tight that drive both treat the test block of tensile test. The clamp assembly 17 can be used for clamping a test piece to be tested in the using process, the test piece is arranged between the first clamping block 19 and the second clamping block 18 in the tensile test process, then the clamping screw 20 is rotated, and then the two clamping blocks are driven by the clamping screw 20 to clamp the test piece.
The utility model discloses a use as follows:
firstly, clamping a test piece to be subjected to a tensile test to a first clamping block 19 and a second clamping block 18, and manually rotating a clamping screw 20 to drive the two clamping blocks through the clamping screw 20 to clamp the test piece; then, starting a power device, driving a speed reducer 2 through a motor 1, driving a first transmission screw 11 through an output shaft 4 of the speed reducer 2, forming thread transmission fit on a first nut seat 13 through the first transmission screw 11, and finally driving a stretching seat 12 to move; meanwhile, the driving synchronous belt wheel 8 is driven through the first transmission screw rod 11, the second transmission screw rod 24 is driven through the combined action of the driving synchronous belt wheel 8 and the synchronous belt 7, the stretching seat 12 is driven to move through the matching between the second transmission screw rod 24 and the second nut seat 25, the driving synchronism is guaranteed, and finally the test piece is stretched through the stretching seat 12, so that the purpose of a stretching test is achieved.
Claims (6)
1. Building material tensile test machine based on twin-screw, its characterized in that: the device comprises a bottom box body (3), wherein a supporting platform (9) is fixed at the top of the bottom box body (3), a first supporting box body (10) and a second supporting box body (15) are symmetrically fixed at the top of the supporting platform (9), a top plate (23) is fixed at the tops of the first supporting box body (10) and the second supporting box body (15), a first transmission screw (11) and a second transmission screw (24) are supported and installed between the top plate (23) and the supporting platform (9) in parallel, a stretching seat (12) is installed on the first transmission screw (11) and the second transmission screw (24) in a matched manner through thread transmission, and a clamp assembly (17) for clamping a test piece to be stretched is fixedly installed at the top center position of the stretching seat (12) and the bottom center position of the top plate (23) through a connecting rod (16) respectively; the bottom end of the first transmission screw rod (11) is connected with a power device for driving the first transmission screw rod to rotate, and the first transmission screw rod (11) is connected with the second transmission screw rod (24) through a synchronous belt mechanism and enables the first transmission screw rod and the second transmission screw rod to rotate synchronously.
2. The twin-screw based construction material tensile tester of claim 1, wherein: the power device comprises a motor (1) fixed inside a bottom box body (3), an output shaft of the motor (1) is connected with a speed reducer (2), and an output shaft (4) of the speed reducer (2) is connected with a short connecting shaft (6) at the bottom end of a first transmission screw rod (11) through a sleeve coupler (5).
3. The twin-screw based construction material tensile tester of claim 1, wherein: the synchronous belt mechanism comprises a driving synchronous belt wheel (8) arranged on a first transmission screw rod (11), and the driving synchronous belt wheel (8) is in meshing transmission with a driven synchronous belt wheel (14) arranged on a second transmission screw rod (24) through a synchronous belt (7).
4. The twin-screw based construction material tensile tester of claim 1, wherein: the lower end of the first transmission screw rod (11) is mounted on the supporting platform (9) through a first thrust ball bearing (26), the top of the first transmission screw rod (11) is mounted on the top plate (23) through a second thrust ball bearing (27), and the first transmission screw rod (11) and a first nut seat (13) fixed on the stretching seat (12) form thread transmission matching.
5. The twin-screw based construction material tensile tester of claim 1, wherein: the lower end of the second transmission screw rod (24) is mounted on the supporting platform (9) through a third thrust ball bearing (28), the top of the second transmission screw rod (24) is mounted on the top plate (23) through a fourth thrust ball bearing (29), and the second transmission screw rod (24) and a second nut seat (25) fixed on the stretching seat (12) form thread transmission matching.
6. The twin-screw based construction material tensile tester of claim 1, wherein: anchor clamps subassembly (17) include anchor clamps seat (22) that link to each other with connecting rod (16), it has T type groove (21) to process on anchor clamps seat (22), sliding fit installs first clamp splice (19) and second clamp splice (18) on T type groove (21), constitute screw thread transmission cooperation through clamping screw (20) between first clamp splice (19) and second clamp splice (18) to drive both and treat that tensile test's test block presss from both sides tightly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921412065.1U CN210513941U (en) | 2019-08-28 | 2019-08-28 | Building material tensile testing machine based on double screws |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921412065.1U CN210513941U (en) | 2019-08-28 | 2019-08-28 | Building material tensile testing machine based on double screws |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210513941U true CN210513941U (en) | 2020-05-12 |
Family
ID=70545114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921412065.1U Expired - Fee Related CN210513941U (en) | 2019-08-28 | 2019-08-28 | Building material tensile testing machine based on double screws |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210513941U (en) |
-
2019
- 2019-08-28 CN CN201921412065.1U patent/CN210513941U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200512 |