CN202221398U - Three point bending test device - Google Patents
Three point bending test device Download PDFInfo
- Publication number
- CN202221398U CN202221398U CN2011202605496U CN201120260549U CN202221398U CN 202221398 U CN202221398 U CN 202221398U CN 2011202605496 U CN2011202605496 U CN 2011202605496U CN 201120260549 U CN201120260549 U CN 201120260549U CN 202221398 U CN202221398 U CN 202221398U
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- pressure
- pedestal
- press
- pressure contact
- horizontal direction
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- Expired - Fee Related
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Abstract
The utility model provides a three point bending test device which aims to solve the problem that only the resistance force of a beam in a forward direction can be tested and the lateral force of the beam generated due to bending cannot be obtained in the existing bending test. The three point bending test device comprises a force application pressure head, two support arms, two pressure measuring devices, a base and a data display device. The two pressure measuring devices are respectively arranged at two opposite sides of the base. The pressure measuring devices comprise foundation supports. Pressure sensors are arranged on the foundation supports. The pressure sensors are divided into horizontal and vertical pressure sensors. Pressure contact plates are arranged on the pressure sensors. The two support arms are respectively arranged on the two foundation supports, meanwhile, the support arms are in contact with the horizontal and vertical pressure contact plates. The force application pressure head is arranged above the two pressure measuring devices and between the two pressure measuring devices. The data display device is connected with the pressure sensors by lead wires. The three point bending test device provided by the utility model is simple in design and can test the resistance force of the pressed beam in the forward direction and the lateral force of the pressed beam generated due to bending at the same time.
Description
Technical field
The utility model relates to a kind of proving installation, is specifically related to a kind of 3 press-bending experimental provisions.
Background technology
Bending test is commonly used to the bending property of test material and the bending property of welded plate, is one of Experiments of Machanics chamber conventional sense project.The present security performance when improving car crass and the strength test of the beam that need carry out is typical bending test; And 3 general bending test methods are merely able to test the resistibility of beam at frontal at present; And can't learn because of the crooked side force that produces, so just caused assessment to lack significant data to the overall performance of beam to beam.
The utility model content
The purpose of the utility model is the problem can only to test the power of frontal in existing 3 bending tests and can not measure side force in order to solve, provides a kind of and can measure the positive force of crossbeam and 3 press-bending experimental provisions of side force simultaneously.
In order to realize the foregoing invention purpose, the utility model adopts following technical proposals: a kind of 3 press-bending experimental provisions comprise application of force pressure head, two sway braces, two device for pressure measurement, base and data presentation devices; Two device for pressure measurement lay respectively at relative both sides on the base; And be fixedly connected with base, device for pressure measurement comprises pedestal, pedestal is provided with pressure transducer; Pressure transducer is connected with pedestal; Pressure transducer is divided into two kinds of horizontal direction and vertical directions, correspondingly on the pressure transducer of horizontal direction and the pressure transducer of vertical direction is provided with the pressure contact board of horizontal direction and the pressure contact board of vertical direction, and pressure contact board is fixedly connected with pressure transducer; Data presentation device links to each other with pressure transducer through lead; Two sway braces lay respectively on two pedestals, and sway brace contacts with the pressure contact board of horizontal direction and the pressure contact board of vertical direction simultaneously, and application of force pressure head is above between two device for pressure measurement.
As preferred version, pedestal is L shaped, and the pressure transducer of horizontal direction is positioned on the pedestal madial wall, and the pressure transducer of vertical direction is positioned on the pedestal inner bottom surface.L shaped pedestal is that the setting of sensor provides platform, and simple in structure.
As preferred version, sway brace is divided into the support column on top and the pressure contact of bottom, and the pressure contact contacts with the pressure contact board of horizontal direction and vertical direction simultaneously, and the pressure contact can better transmit pressure, guarantees the accuracy of experimental data.
As preferred version; The pressure contact is a right cylinder; The support column on sway brace top is fixedly connected with the middle part of tubular pressure contact, and cylindrical design can make the power of sway brace transmission can be delivered to better on level and the vertical direction, reduces the dispersion of power.
As preferred version, be provided with baffle plate at pressure contact board opposite side place on the pedestal with horizontal direction, baffle plate prevents that sway brace from falling down from pedestal.
As preferred version, the opposite position with sway brace upper support post on the baffle plate has breach, and gap width is greater than the width of sway brace upper support post, and it is that the activity of sway brace provides the space when being out of shape significantly that the breach design can take place at exemplar.
As preferred version, baffle plate and pedestal are structure as a whole.
As preferred version, said application of force pressure head be positioned in the middle of two device for pressure measurement lines directly over, two pressure test device stress equalizations about the application of force directly over the centre can guarantee.
As preferred version, said application of force pressure head bottom is a semisphere, and semisphere can be as far as possible dwindled the acting surface of power.
As preferred version, base is provided with many group positioning screw holes, and device for pressure measurement and base are fixed through bolt, organizes the design of bolt hole more and can provide convenience for the exemplar of different size size.
Owing to adopt technique scheme; The beneficial effect of the utility model is: when measuring the exemplar experiment; Can measure the pressure data of horizontal direction and vertical direction simultaneously, assessing for the overall performance of beam provides data, and better service is in the improve of vehicle safety performance.
Description of drawings
Fig. 1 is a kind of agent structure synoptic diagram of the utility model,
Fig. 2 is a kind of structural representation of the utility model pedestal,
Fig. 3 is a kind of structural representation of the utility model sway brace,
Fig. 4 is a kind of vertical view of the utility model base.
Among the figure:
1 application of force pressure head, 2 sway braces, 3 device for pressure measurement, 4 bases, 5 data presentation devices, 6 pedestals, 7 pressure transducers, 8 pressure contact boards, 9 baffle plates, 10 pressure contacts, 11 positioning screw holes.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 1, a kind of 3 press-bending experimental provisions comprise that a bottom is hemispheric application of force pressure head 1, two sway braces 2, two device for pressure measurement 3, base 4 and data presentation devices 5.Two device for pressure measurement 3 lay respectively on the base 4 both sides relatively, and as shown in Figure 4, base 4 is provided with many group positioning screw holes 11, and device for pressure measurement 3 and base 4 are fixed through bolt.As depicted in figs. 1 and 2; Device for pressure measurement 3 comprises L shaped pedestal 6; Pedestal 6 is provided with pressure transducer 7; Pressure transducer 7 is connected with pedestal 6, and pressure transducer 7 is divided into two kinds of horizontal direction and vertical directions, lays respectively on the madial wall of pedestal 6 on the inner bottom surface with pedestal 6; The corresponding pressure contact board 8 of horizontal direction and the pressure contact board 8 of vertical direction of being provided with on the pressure transducer 7 of horizontal direction and the pressure transducer 7 of vertical direction, pressure contact board 8 passes through bolt with pressure transducer 7.Data presentation device 5 links to each other with pressure transducer 7 through lead.As shown in figures 1 and 3; Two sway braces 2 lay respectively on two pedestals 6; Sway brace 2 is divided into the support column on top and the cylinder bodily form pressure contact 10 of bottom, the middle part welding of support column and tubular pressure contact 10, and pressure contact 10 contacts with the pressure contact board 8 of horizontal direction and the pressure contact board 8 of vertical direction simultaneously; Be provided with the baffle plate 9 that is structure as a whole with pedestal 6 at pressure contact board 8 opposite sides on the pedestal 6 with horizontal direction; Opposite position with sway brace 2 upper support posts on the baffle plate 9 has breach, and gap width is greater than the width of sway brace 2 upper support posts, application of force pressure head 1 be positioned in the middle of two device for pressure measurement 3 lines directly over.The many groups positioning screw hole 11 that is provided with on the base 4 can make the position of two device for pressure measurement 3 adjust, thereby the distance between two device for pressure measurement 3 is changed, to adapt to the not needs of same piece.The pressure transducer 7 of horizontal direction and vertical direction is separately fixed on the inwall and inner bottom surface of pedestal 6 through bolt; Corner in pedestal 6 is provided with a platform; Can be to the pressure transducer 7 of horizontal direction to support; Be provided with pressure contact board 8 respectively on the pressure transducer 7 simultaneously, two kinds of pressure contact boards 8 on the pedestal 6 have born the component of level and vertical direction, and pass to pressure transducer 7.Sway brace 2 is positioned on the pedestal 6; And power is delivered on the pressure contact board 8 through the pressure contact 10 of sway brace 2 lower ends; The baffle plate 9 of horizontal direction couple positioned opposite can prevent that sway brace 2 from dropping from pedestal 6 on pedestal 6, and the breach on the baffle plate 9 can provide a space for the activity of sway brace 2 in experimentation.Two sway braces 2 have constituted three dot structures jointly with application of force pressure head 1, carry out to impel test through 1 pair of exemplar application of force of application of force pressure head.
During experiment; At first exemplar is symmetrically welded on two sway braces 2; Through the 1 pair of exemplar application of force of application of force pressure head directly over the exemplar centre, exemplar is delivered to sway brace 2 with power then, and the pressure contact 10 of sway brace 2 lower ends is delivered to the pressure contact board 8 of horizontal direction and the pressure contact board 8 of vertical direction with power; Power is received by pressure transducer 7 then, and data are able to show through data presentation device 5.
Above-described embodiment is a kind of preferable scheme of the utility model, is not the utility model is done any pro forma restriction, under the prerequisite that does not exceed the technical scheme that claim puts down in writing, also has other variant and remodeling.
Claims (10)
1. 3 press-bending experimental provisions is characterized in that, comprise application of force pressure head (1), two sway braces (2), two device for pressure measurement (3), base (4) and data presentation device (5); Two device for pressure measurement (3) lay respectively at base (4) and go up relative both sides; And be fixedly connected with base (4); Device for pressure measurement (3) comprises pedestal (6); Pedestal (6) is provided with pressure transducer (7), and pressure transducer (7) is connected with pedestal (6), and pressure transducer (7) is divided into two kinds of horizontal direction and vertical directions; The pressure transducer (7) of pressure transducer of horizontal direction (7) and vertical direction is gone up correspondence and is provided with the pressure contact board (8) of horizontal direction and the pressure contact board (8) of vertical direction; Pressure contact board (8) is fixedly connected with pressure transducer (7), and data presentation device (5) links to each other with pressure transducer (7) through lead, and two sway braces (2) lay respectively on two pedestals (6); Sway brace (2) contacts with the pressure contact board (8) of horizontal direction and the pressure contact board (8) of vertical direction simultaneously, and application of force pressure head (1) is positioned at the top between two device for pressure measurement (3).
2. a kind of 3 press-bending experimental provisions according to claim 1; It is characterized in that; Pedestal (6) is L shaped, and the pressure transducer of horizontal direction (7) is positioned on pedestal (6) madial wall, and the pressure transducer of vertical direction (7) is positioned on pedestal (6) inner bottom surface.
3. a kind of 3 press-bending experimental provisions according to claim 1 and 2; It is characterized in that; Sway brace (2) is divided into the support column on top and the pressure contact (10) of bottom, and pressure contact (10) contacts with the pressure contact board (8) of horizontal direction and vertical direction simultaneously.
4. a kind of 3 press-bending experimental provisions according to claim 3 is characterized in that pressure contact (10) is a right cylinder, and the support column on sway brace (2) top is fixedly connected with the middle part of tubular pressure contact (10).
5. a kind of 3 press-bending experimental provisions according to claim 1 and 2 is characterized in that, pedestal (6) is gone up and is provided with baffle plate (9) at pressure contact board (8) opposite side with horizontal direction.
6. a kind of 3 press-bending experimental provisions according to claim 5 is characterized in that, baffle plate (9) is gone up and the opposite position of sway brace (2) upper support post has breach, and gap width is greater than the width of sway brace (2) upper support post.
7. a kind of 3 press-bending experimental provisions according to claim 5 is characterized in that, baffle plate (9) is structure as a whole with pedestal (6).
8. a kind of 3 press-bending experimental provisions according to claim 1 and 2 is characterized in that, said application of force pressure head (1) be positioned in the middle of two device for pressure measurement (3) line directly over.
9. a kind of 3 press-bending experimental provisions according to claim 1 and 2 is characterized in that said application of force pressure head (1) bottom is a semisphere.
10. a kind of 3 press-bending experimental provisions according to claim 1 and 2 is characterized in that, base (4) is provided with many group positioning screw holes (11), and device for pressure measurement (3) is fixed through bolt with base (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202605496U CN202221398U (en) | 2011-07-22 | 2011-07-22 | Three point bending test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202605496U CN202221398U (en) | 2011-07-22 | 2011-07-22 | Three point bending test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202221398U true CN202221398U (en) | 2012-05-16 |
Family
ID=46043422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202605496U Expired - Fee Related CN202221398U (en) | 2011-07-22 | 2011-07-22 | Three point bending test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202221398U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940679A (en) * | 2014-04-17 | 2014-07-23 | 南京航空航天大学 | Three-point externally extending bending creep parameter measurement device and operating method thereof |
| CN104655498A (en) * | 2015-03-19 | 2015-05-27 | 哈尔滨工业大学 | Device and method for measuring yarn bending rigidity |
| CN105092190A (en) * | 2015-08-28 | 2015-11-25 | 芜湖莫森泰克汽车科技有限公司 | Vehicle skylight air deflector elasticity testing tool and testing method thereof |
| CN108240887A (en) * | 2017-12-27 | 2018-07-03 | 安徽金大仪器有限公司 | A kind of radio data pressure meter with installation auxiliary device |
-
2011
- 2011-07-22 CN CN2011202605496U patent/CN202221398U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103940679A (en) * | 2014-04-17 | 2014-07-23 | 南京航空航天大学 | Three-point externally extending bending creep parameter measurement device and operating method thereof |
| CN103940679B (en) * | 2014-04-17 | 2015-11-18 | 南京航空航天大学 | A kind of 3 overhanging bending creep parameter measuring apparatus and method of work thereof |
| CN104655498A (en) * | 2015-03-19 | 2015-05-27 | 哈尔滨工业大学 | Device and method for measuring yarn bending rigidity |
| CN104655498B (en) * | 2015-03-19 | 2017-04-19 | 哈尔滨工业大学 | Device and method for measuring yarn bending rigidity |
| CN105092190A (en) * | 2015-08-28 | 2015-11-25 | 芜湖莫森泰克汽车科技有限公司 | Vehicle skylight air deflector elasticity testing tool and testing method thereof |
| CN108240887A (en) * | 2017-12-27 | 2018-07-03 | 安徽金大仪器有限公司 | A kind of radio data pressure meter with installation auxiliary device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20120516 Termination date: 20190722 |