CN2286308Y - Multifunctional experimental bench for mechanics of materials - Google Patents
Multifunctional experimental bench for mechanics of materials Download PDFInfo
- Publication number
- CN2286308Y CN2286308Y CN 97207386 CN97207386U CN2286308Y CN 2286308 Y CN2286308 Y CN 2286308Y CN 97207386 CN97207386 CN 97207386 CN 97207386 U CN97207386 U CN 97207386U CN 2286308 Y CN2286308 Y CN 2286308Y
- Authority
- CN
- China
- Prior art keywords
- assembly
- frame
- worm
- fixed
- worm gear
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000463 material Substances 0.000 title claims abstract description 13
- 238000005452 bending Methods 0.000 claims abstract description 12
- 238000012360 testing method Methods 0.000 claims description 21
- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 6
- 230000002787 reinforcement Effects 0.000 claims description 3
- 238000002474 experimental method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000005259 measurement Methods 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 238000009864 tensile test Methods 0.000 abstract 1
- 241000237858 Gastropoda Species 0.000 description 1
- 230000005483 Hooke's law Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
A material mechanics experiment table is composed of a square frame consisting of enclosed beams, and the stretching or pressing rod assembly, sensor, bending-twisting assembly, bending moment assembly, cantilever beam assembly, etc. fixed to said square frame. The bottom of the frame is provided with the adjusting chassis, and the loading mechanism connected with each component is changed from the original direct-acting type of the lead screw to the worm gear transmission, so that the experimental operation is labor-saving, the loading speed is slow and uniform, the structure is reasonable, the integral rigidity is good, and the measurement precision is improved. And because the worm gear mechanism can be self-locked, the loaded final value can be kept unchanged. The method can increase the measurement of the elastic modulus E and the Poisson ratio mu and the eccentric tensile test, so that the application range is wider and the method is more practical.
Description
The utility model relates to a kind of testing tool, especially a kind of surveying instrument of material stress deformation.It is applicable to the test of the material that meets Hooke's law.
Existing materials mechanics experimental platform is by support body and crossbeam and be contained in handwheel on the support body and leading screw etc. forms, testing table is when loading test specimen, the handwheel turn, leading screw is rotated, drive is contained in slip shaft in the sleeve on the support body and moves up and down test specimen is loaded, when handwheel turns around, slip shaft moves 2mm, but when practical operation, often be not easy to grasp displacement, be difficult for accomplishing even loading, so measuring accuracy is relatively poor, loading procedure is difficult for reflecting, and its support body all adopts channel-section steel to be welded, and its rigidity is relatively poor, and these steel channel beams are easy to generate distortion when stand under load, sometimes the amount of deflection that its distortion produces is also bigger than the test specimen distortion, so bigger to the influence of test specimen measuring accuracy.
The purpose of this utility model is for overcoming a kind of new testing table that above-mentioned the deficiencies in the prior art part designs, improved the structure of its support body and load maintainer, make this testing table support body be difficult for distortion, and realize easily loading slowly evenly, improved measuring accuracy.
Task of the present utility model is implemented as follows: a kind of mechanics of materials multi-function experimental rig, it comprises that the frame front is equipped with and stretches or the depression bar assembly, upper rack is equipped with bending assembly and moment of flexure assembly, the semi-girder assembly is equipped with on rack table the right, it also comprises worm gearing and the sensor that is connected with stretching or depression bar assembly, bending assembly, moment of flexure assembly, and the frame bottom also is fixed with adjustable chassis; Sensor is connected with digital dynamometer, all posts resistance strain gage on each test specimen and is connected with electric wire strain gauge.Described frame is the quadra that is made of the enclosed beam that shaped steel is made, and the reinforcement gusset is arranged in the enclosed beam.
Described worm gearing comprise with worm gear between the worm gear main shaft that is connected of key, its left end is connected with slip shaft, the slip shaft removable mounting is in sleeve, and can slide vertically, the worm gear main shaft is by upper ball cover, connect in the enclosed beam that cage plate and rolling bearing be fixed on frame down, and sleeve is fixed on down and connects on the cage plate; The engagement of the worm and wheel of worm shaft, and be fixed in the enclosed beam of frame by left end cap and right end cap and rolling bearing, on the termination that worm shaft exposes handwheel is housed.
Described slip shaft is a multidiameter, there is the threaded hole that is opened on the right side at its center, its left end head is the external thread post, it and pulling force sensor revolve joins, its big end external cylindrical surface has an axial elongated slot, be fixed on sleeve that it cooperates on holding screw can stretch in this groove, when the worm gear main axis rotation, can drive slip shaft and move vertically.
The utility model has following advantage compared with the prior art:
This testing table rational in infrastructure simple, its frame structure has improved integral rigidity by the original closed formed steel construction that reinforcement is arranged in the middle of changing into channel-section steel, has reduced each beam stress deformation extent; Load maintainer changes Worm and worm-wheel gearing into, makes loading velocity slowly, steadily and evenly make test specimen stressed evenly, has improved measuring accuracy; Because worm mechanism has self-locking action, the stand under load final value can remain unchanged.Its underframe changes adjustable circular base plate into, can regulate the levelness of support body easily by it, in order to the mode of test specimens such as bent beam, torque tube; Because the improvement of structure can increase mensuration and the eccentric tension experiment of elasticity modulus of materials E, Poisson ratio μ, makes experiment table applied range, practical more.
Description of drawings:
Fig. 1 is an outside drawing of the present utility model.
Fig. 2 is a Worm and worm-wheel gearing structural drawing of the present utility model.
Fig. 3 is the A-A cut-open view of Worm and worm-wheel gearing structural drawing of the present utility model.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail: as Fig. 1,2 and shown in Figure 3, it is made up of stretching or depression bar assembly 1, worm gear snail gear train 2, pulling force sensor 3, bending assembly 4, moment of flexure assembly 5, semi-girder assembly 6, adjustable chassis 7 and frame 8 etc.; Its mid frame 8 is bilevel frame shape frames that the enclosed beam made of a channel-section steel and steel plate is formed, two pillar deck-molding planes on support body at its rear portion, be fixed with bending assembly 4 on it, on bending assembly 4 upper supports two end bearings moment of flexure assembly 5 is housed, be fixed with slider assembly 6 on the table top, stretching or depression bar assembly 1 are housed in the frame front, respectively be equipped with one on four angles of base of frame and regulate chassis 7, be used to adjust the levelness of frame 8, be fixed in addition in the frame enclosed beam respectively with stretching or depression bar assembly 1, bending assembly 4, three groups of Worm and worm-wheel gearings 2 that load usefulness that semi-girder assembly 6 and moment of flexure assembly 5 are connected.Wherein being contained in stretching between the undercarriage face on the framework front or depression bar assembly 1 comprises the Worm and worm-wheel gearing 2 of live strand bearing, the face of putting on the shelf that are contained in the frame bottom and is contained in pulling force sensor and test specimen between them.Bending assembly 4 comprises bearing, is fixed on the horizontal brace summer of two intercolumniations in rear portion, be fixed on fan-shaped afterburning frame and torque tube (test specimen) on the horizontal brace summer by bearing, the torque tube surface is posted multi-disc resistance strain gage assembly and is formed half-bridge or full-bridge, have a wire rope to be connected with sensor 3 epimere rope seats on the arm of force of fan-shaped afterburning frame, this sensor 3 is connected with worm gearing 2.Moment of flexure assembly 5 comprises be fixed on the horizontal brace summer two saddles, is fixed on the carrying crossbeam on the saddle, posts resistance strain gage on carrier bar, in the middle of the carrying underbeam be fixed on worm gearing 2 on sensor and pressure head contact.Semi-girder assembly 6 comprises that cantilever beam seat, an end declare a war admittedly on the cantilever beam seat, the other end is pressed in the semi-girder on the pulling force sensor pressure head, post the multi-disc resistance strain gage on semi-girder, insert dynamic resistance strain instrument, pulling force sensor is connected with worm gearing 2.When loading by worm gearing 2, can make the test specimen stress deformation on each assembly respectively, and show by electric wire strain gauge that by the resistance strain gage on the test specimen loading force is shown by digital dynamometer that through pulling force sensor its purposes is: 1. elastic constant E, the μ of material; 2. experiment is stretched in eccentric position; 3. the combination stressed analysis of bending; 4. semi-girder test; 5. compression bar stabilization testing; 6. the regularity of distribution of normal stress is tested on the pure bending beam xsect; 7. the demarcation of resistance strain gage sensitivity coefficient.Worm and worm-wheel gearing 2 comprises worm gear main shaft 2-3, it is a multidiameter, there is keyway at its middle part, it is connected by key with worm gear 2-2, the left end of worm gear main shaft 2-3 is the external thread post, it is threaded with slip shaft 2-7, and worm gear main shaft 2-3 is by upper ball cover 2-4, connect in the enclosed beam that cage plate 2-5 and rolling bearing be fixed on frame down, sleeve 2-6 by a plurality of screw retention under connect on the cage plate 2-5.The engagement of the worm and wheel of worm shaft 2-9 also is fixed in the enclosed beam by left and right sides end cap 2-10 and 2-1 and rolling bearing, and the termination that worm shaft 2-9 exposes is connected and fixed a handwheel by key; Slip shaft 2-7 is a multidiameter, there is the threaded hole that is opened on the right side at its center, its left end head is the external thread post, revolve with pulling force sensor and to join, the external cylindrical surface of its big end has an axial elongated slot, between its external cylindrical surface and sleeve 2-6 for movingly, being fixed on sleeve 2-6 holding screw 2-8 can stretch in the elongated slot of slip shaft 2-7, play the role of positioning, make this axle when worm gear main shaft 2-3 rotates, drive slip shaft 2-7 and move (can not rotate) vertically, load stressed to drive the sensor and the test specimen that are connected with it.
Claims (4)
1. mechanics of materials multi-function experimental rig, it comprises that frame (8) front is equipped with and stretches or depression bar assembly (1) that bending assembly (4) and moment of flexure assembly (5) are equipped with in frame (8) top, semi-girder assembly (6) is equipped with on frame (8) table top the right; It is characterized in that: it also comprises worm gearing (2) and the sensor (3) that is connected with stretching or depression bar assembly (1), bending assembly (4), moment of flexure assembly (5), and frame (8) bottom also is fixed with adjustable chassis (7); Sensor (3) is connected with digital dynamometer, all posts resistance strain gage on each test specimen and is connected with electric wire strain gauge.
2. mechanics of materials multi-function experimental rig according to claim 1 is characterized in that: described frame (8) is the quadra that is made of the enclosed beam that shaped steel is made, and the reinforcement gusset is arranged in the enclosed beam.
3. the dangerous platform of the multi-functional reality of the mechanics of materials according to claim 1 and 2, it is characterized in that: described worm gearing (2) comprise with worm gear (2-2) between the worm gear main shaft (2-3) that is connected of key, its left end is connected with slip shaft (2-7), slip shaft (2-7) removable mounting is in big sleeve (2-6), and can slide vertically, worm gear main shaft (2-3) by upper ball cover (2-4), connect cage plate (2-5) and rolling bearing down and be fixed in the enclosed beam of frame (8), sleeve (2-6) is fixed on down and connects on the cage plate (2-5); The engagement of the worm screw of worm shaft (2-9) and fly wheel, and be fixed in the enclosed beam of frame (8) by left end cap (2-10) and right end cap (2-1) and rolling bearing, on the termination that fly bar axle (2-9) exposes handwheel is housed.
4. mechanics of materials multi-function experimental rig according to claim 3, it is characterized in that: described slip shaft (2-7) is a multidiameter, there is the threaded hole that is opened on the right side at its center, its left end head is the external thread post, it and pulling force sensor revolve joins, its big end external cylindrical surface has an axial elongated slot, and the holding screw (2-8) that is fixed on the sleeve (2-6) that cooperates with it can stretch in this groove, can drive slip shaft (2-7) and move vertically when worm gear main shaft (2-3) rotates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97207386 CN2286308Y (en) | 1997-03-15 | 1997-03-15 | Multifunctional experimental bench for mechanics of materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97207386 CN2286308Y (en) | 1997-03-15 | 1997-03-15 | Multifunctional experimental bench for mechanics of materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2286308Y true CN2286308Y (en) | 1998-07-15 |
Family
ID=33927168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97207386 Expired - Fee Related CN2286308Y (en) | 1997-03-15 | 1997-03-15 | Multifunctional experimental bench for mechanics of materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2286308Y (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100407247C (en) * | 2005-03-28 | 2008-07-30 | 哈尔滨工业大学 | Cantilever part with mounting plate for mechanical experiment |
| CN101799372A (en) * | 2010-03-29 | 2010-08-11 | 上海建科检验有限公司 | Sunshade product performance test device |
| CN101526456B (en) * | 2009-03-31 | 2011-01-05 | 江苏大学 | Fine dried noodles elasticity modulus measuring method based on pressure lever post-buckling |
| CN101520375B (en) * | 2009-03-26 | 2011-02-09 | 河海大学 | Experimental device for comparing internal force properties of static and hyperstatic structures |
| CN101451904B (en) * | 2008-12-25 | 2012-01-25 | 陶泽成 | Stewpot handle bending strength test machine |
| CN103136991A (en) * | 2011-11-28 | 2013-06-05 | 南京航空航天大学 | Combined tensile experimental device |
| CN103136992A (en) * | 2011-11-28 | 2013-06-05 | 南京航空航天大学 | Multi-functional combined type mechanical testing method |
| CN104374634A (en) * | 2014-11-10 | 2015-02-25 | 安徽农业大学 | Material mechanical linkage test bed |
| CN107505354A (en) * | 2017-08-15 | 2017-12-22 | 神华集团有限责任公司 | Flash-point detection means |
-
1997
- 1997-03-15 CN CN 97207386 patent/CN2286308Y/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100407247C (en) * | 2005-03-28 | 2008-07-30 | 哈尔滨工业大学 | Cantilever part with mounting plate for mechanical experiment |
| CN101451904B (en) * | 2008-12-25 | 2012-01-25 | 陶泽成 | Stewpot handle bending strength test machine |
| CN101520375B (en) * | 2009-03-26 | 2011-02-09 | 河海大学 | Experimental device for comparing internal force properties of static and hyperstatic structures |
| CN101526456B (en) * | 2009-03-31 | 2011-01-05 | 江苏大学 | Fine dried noodles elasticity modulus measuring method based on pressure lever post-buckling |
| CN101799372A (en) * | 2010-03-29 | 2010-08-11 | 上海建科检验有限公司 | Sunshade product performance test device |
| CN101799372B (en) * | 2010-03-29 | 2012-10-03 | 上海建科检验有限公司 | Sunshade product performance test device |
| CN103136991A (en) * | 2011-11-28 | 2013-06-05 | 南京航空航天大学 | Combined tensile experimental device |
| CN103136992A (en) * | 2011-11-28 | 2013-06-05 | 南京航空航天大学 | Multi-functional combined type mechanical testing method |
| CN104374634A (en) * | 2014-11-10 | 2015-02-25 | 安徽农业大学 | Material mechanical linkage test bed |
| CN107505354A (en) * | 2017-08-15 | 2017-12-22 | 神华集团有限责任公司 | Flash-point detection means |
| CN107505354B (en) * | 2017-08-15 | 2020-03-06 | 神华集团有限责任公司 | Flash point detection device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103308404A (en) | In-situ nano-indentation tester based on adjustable stretching-bending preload | |
| CN101105433B (en) | Portable on-spot and indoor dual-purpose direct-cutting experiment instrument and its sampling method | |
| CN2286308Y (en) | Multifunctional experimental bench for mechanics of materials | |
| CN101144764A (en) | Dynamic and static mechanics integrated test platform | |
| CN103575463A (en) | Independent weight loading-unloading dead-load type torque measurement device | |
| CN101561376A (en) | Bidirectional tensile tester | |
| CN203337492U (en) | In-situ nanoindentation tester based on adjustable stretching-bending pre-load | |
| CN106769416A (en) | Portable crankling vibration test instrument | |
| CN109900408A (en) | A kind of electronic servo-loading unit of friction material chase testing machine | |
| CN114486522B (en) | Mechanical triaxial experiment instrument with controllable confining pressure | |
| CN203643278U (en) | Device for testing microscopic mechanical property of four-point bending material in situ under microscope | |
| CN105319135A (en) | Bend and twist combination test machine | |
| CN212391340U (en) | Portable belleville instrument | |
| CN210005438U (en) | In-situ Raman tensile testing device | |
| CN104897398B (en) | Scalable gear fatigue testbed and stress cycle number calculation method thereof | |
| CN200979518Y (en) | A combination test-bed for a material mechanism of a bridge-type beam structure | |
| CN209215110U (en) | A kind of experimental rig of the uniaxial tensile test suitable for viscoelastic material | |
| CN218382085U (en) | Multipurpose testing machine | |
| CN2692654Y (en) | Hand pulling pressing spring measurer | |
| CN210375724U (en) | Calibrating device of steering wheel angle measuring instrument for automobile test | |
| CN209589722U (en) | Pressure-shear test machine | |
| CN2466628Y (en) | Material tester | |
| CN210154958U (en) | Variable-range in-situ hardness testing device under prestress | |
| CN100348966C (en) | Compression bar stabilization testing machine | |
| CN218782136U (en) | Electronic cement strength anti-bending testing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |