CN2669176Y - Mechanical loading device of small-load vicker hardness meter - Google Patents
Mechanical loading device of small-load vicker hardness meter Download PDFInfo
- Publication number
- CN2669176Y CN2669176Y CNU2003201229316U CN200320122931U CN2669176Y CN 2669176 Y CN2669176 Y CN 2669176Y CN U2003201229316 U CNU2003201229316 U CN U2003201229316U CN 200320122931 U CN200320122931 U CN 200320122931U CN 2669176 Y CN2669176 Y CN 2669176Y
- Authority
- CN
- China
- Prior art keywords
- cam
- lever
- counterweight
- suspension rod
- push rod
- 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
Images
Landscapes
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model relates to a mechanical loading device of a small-load vicker hardness meter, mainly comprising a lever, a main shaft, a press head and an eccentric wheel. The lower end of the main shaft is the press head, the lever is arranged on the upper part of the main shaft, the eccentric wheel which can swing and lift around the supporting point of the lever is arranged under the lever, and the lever can lift with the eccentric wheel to load or unload the main shaft. The other end of the supporting point of the lever is collocated with a push rod which can support the lever and a hanger rod loading on the lever, and the hanger rod is added with controllable counterweights having different quality. The combination of the push rod, the hanger rod and the counterweights in different loading state can form into various different load force values. A set of cam devices of the same cam shaft is used for controlling the positions of the push rod and the hanger rod and whether the counterweights need to be added or not and the amount of the counterweights needing to be added. Thus when a hand wheel controlling the cam shaft is rotated, load can be conveniently added according to different force values to obtain load values required by testing. Manual loading and unloading operation can be replaced by mechanical loading and unloading operation via selecting testing force values according to requirements to increase the efficiency of measurement.
Description
Technical field
The utility model relates to a kind of sclerometer, specifically refers to a kind of little load Vickers machinery loading and unloading device.
Background technology
Vickers is that a kind of test material superficial layer or material thickness of being used for is thin and the testing apparatus of the part hardness that hardness is high is characterized in that little load forces value stepping is thin, and power value span is big, and franchise is little.Its basic structure mainly is made up of lever, main shaft, pressure head, and the main shaft top is provided with the lever of loading, and the main shaft lower end is provided with pressure head, and the load on the main lever acts on the test specimen by main shaft, pressure head, makes test specimen impression occur.Calculate the hardness of material then according to the big or small depth of impression.Present little load sclerometer generally is to adopt manual mode to add off-load, promptly on the pallet of lever, adds or remove required counterweight with manual mode according to the test needs.
Summary of the invention
In order to overcome the inconvenience that manual operations brings, the purpose of this utility model is to propose a kind of little load Vickers machinery loading and unloading device, replaces present manual mode of operation, simplifies procedures, and improves testing efficiency.
Design of the present utility model is, fulcrum other end configuration one push rod and that can withstand lever at lever can add the suspension rod of load in lever, on described suspension rod, can also controllably add the counterweight of different quality, pass through push rod, suspension rod, the combination of the different stress states of counterweight, can form various different load power values, and all push rods, the position of suspension rod, add counterweight and do not reach how many counterweights of interpolation, by one group of cam gear control being located at same camshaft, therefore as long as the handwheel of Spin Control camshaft location, can be easily by different power value requirement loadings, to obtain the required load value of test.
A kind of little load Vickers machinery loading system of the present utility model mainly comprises lever 25, main shaft 28, pressure head 24, eccentric wheel 26; The lower end of main shaft 28 is a pressure head 24, and lever 25 is located at the top of main shaft 28, and lever 25 has and can make its eccentric wheel 26 around fulcrum 25a swing lifting, and lever 25 can be realized loading or off-load to main shaft 28 with the lifting of eccentric wheel 26; Described lever 25 with its fulcrum opposite end one push rod 6, a suspension rod 3 and some counterweights that is added on suspension rod 3 are arranged, all counterweights are provided with by different test force value requirement; Described push rod 6, suspension rod 3 and each counterweight all have two positions at least: can withstand lever 25 from below when push rod 6 is in a position, separate with lever 25 when being in the another location; When described suspension rod 3 is in a position and lever 25 throw off, be hung on when being in the another location on the lever 25; When described all counterweights are in a position and suspension rod 3 throw off, add when being in another position on each the corresponding pallet that rests suspension rod 3.
The position of described push rod 6 is by one group of push rod cam 21 and crown bar bracket 9 controls; The position of described suspension rod 3 is by one group of suspension rod cam 23 and boom crutch 8 controls; The position of described all counterweights is by some groups of counterweight cams and the control of counterweight crotch, and the group number of described counterweight cam and counterweight crotch is identical with the counterweight number.Described push rod cam 21, suspension rod cam 23 and counterweight cam are coaxial edge cam, and the working curve of cam is according to the requirement design that adds off-load.
Described push rod cam 21 and crown bar bracket 9, suspension rod cam 23 and boom crutch 8, and the counterweight crotch of all counterweight cams and correspondence all is located in the cam box; This cam box has a casing 22 and a camshaft 13, and described push rod cam 21, suspension rod cam 23 and all counterweight cams all are fixedly arranged on this camshaft 13, and crown bar bracket 9, boom crutch 8 and all counterweight crotch are located at by each corresponding cam.
Described crown bar bracket 9 is hubbed on the fulcrum 9x of cam box 22, the one end has a shelves nail or a roller 9a who contacts with the cam curve of described push rod cam 21, its other end is positioned at the below of the pallet 6a on the push rod 6, can be under the effect of cam curve around its fulcrum 9x swing, hold this pallet (6a) or throw off with this pallet; Described boom crutch 8 is hubbed on the fulcrum 8x of cam box 22, the one end has a shelves nail or a roller 8a who contacts with the cam curve of described suspension rod cam 23, its other end is positioned at the below of the pallet 3a on the suspension rod 3, can be under the effect of cam curve around its fulcrum 8x swing, hold this pallet (3a) or throw off with this pallet; Described counterweight crotch 10 is hubbed on the fulcrum 10x of cam box 22, the one end has a shelves nail 10a who contacts with the cam curve of described suspension rod cam 19, its other end is positioned at the top of the weight tray 12 on the suspension rod 3, can hold counterweight 11 or counterweight 11 is held on this weight tray 12 around its fulcrum 10x swing under the effect of cam curve; All the other each counterweight crotch are identical with counterweight crotch 10 structures.
360 ° of branches in if camshaft rotated a circle set out some angle positions, the power value of the corresponding a kind of loading in each angle position, like this, rotating cam axle 13 is to a certain angle position, whether loading is on main shaft 28 can to control lever 25, push rod 6, suspension rod 3 and each counterweight, regulates the power value of loading on main shaft 28 thereby reach.
As seen the beneficial effects of the utility model are: by aforementioned, as long as camshaft 13 is rotated to a certain angle position that designs, can form the various combinations whether lever 25, push rod 6, suspension rod 3 and each counterweight load on main shaft 28, thereby the power value when selecting test on demand, realization replaces the manual off-load operation that adds in the mode that machinery adds off-load, improves efficiency of measurement.
Description of drawings
Fig. 1 is the synoptic diagram of an embodiment of the present utility model;
Among the figure: 1 hook pin, 2 hooks, 3 suspension rods, 4 locating sleeves, 5 base plates, 6 push rods, 8 boom crutchs, 9 crown bar brackets, 10 counterweight crotch, 11 counterweights, 12 weight trays, 13 camshafts, 14 conical gears, 15 handwheels, 16 test specimens, 17 worktable, 19 counterweight edge cams, 21 push rod edge cams, 22 cam boxs, 23 suspension rod edge cams, 24 pressure heads, 25 levers, 26 eccentric wheels, 27 adjuster bars, 28 main shafts.
Embodiment
Now in conjunction with the embodiments and accompanying drawing the utility model is described in further detail.
By Fig. 1, the load that is added on the main shaft 28 is applied on the test specimen 16 by pressure head 24, forms impression, as the foundation of measuring material hardness.And the load that is added on the main shaft 28 is synthetic by the power that adjuster bar 27 is added on the main shaft by the weight and the load on the lever 25 of main shaft 28.
Be provided with a push rod 6 and that can withstand lever 25 at the other end of lever 25 and can be hung in suspension rod 3 and some counterweights that loads on suspension rod 3 on the lever 25 from below.Be added in payload on the main shaft then by described push rod position, suspension rod position and be added on counterweight weight decision on the suspension rod.Described push rod 6 withstands lever 25 when rising, and the load on the lever can not be added on the main shaft, and is inoperative to lever 25 during decline; Inoperative when described suspension rod 3 rises to lever, can hang on lever 25 by linking up with 2 during decline; Inoperative during described all counterweight jack-up, be pressed on the suspension rod 3 and by weight tray during decline and be applied on the test specimen 16 by lever 25, main shaft 28.
Whether each is controlled by a corresponding edge cam assembly for the lifting of push rod 6, suspension rod 3 and the loading of all counterweights.
Described each edge cam assembly all is located in the cam box, and this cam box is made up of as push rod cam 21, suspension rod cam 23, counterweight cam 19 and carriage, the crotch corresponding with each cam casing 22, camshaft 13 and some edge cam assemblies.Each edge cam state's axle altogether is located on the camshaft 13, and controls push rod, the lifting of suspension rod and the counterweight number of loading by separately carriage, crotch.The quantity of the described counterweight that loads on suspension rod 3 can be according to the shelves number needs setting of sclerometer load forces value, and the quantity that controls the cam pack that each counterweight loads is corresponding with the counterweight number.
The below of described camshaft 13 is provided with a pair of vertically disposed conical gear 14, and a handwheel 15 is housed on the bevel pinion shaft of horizontal level, and this handwheel is marked with the sign with rotational angle position relative stress value.
In the present embodiment, counterweight is only used one, and as shown in Figure 1, the power value is divided into 300g, 500g, totally 4 grades of 1kg, 3kg, and it is one grade that handwheel rotates 90 °, one grade of power value of every grade of correspondence, existing division is as follows:
1. rotate handwheel 15 and make camshaft 13 forward 0 ° of position to, at this moment the position of all edge cams just in time makes all carriages, crotch all be in horizontality, as the solid line position among Fig. 1.Because this moment, carriage 9 just in time was horizontal, push rod 6 has withstood lever 25, and carriage 8 also is horizontal simultaneously, and pallet 3a has held suspension rod 3, and crotch 10 levels have been held counterweight 11.During loading, eccentric wheel 26 rotates to extreme lower position, and lever 25 is still withstood and can not descend by push rod 6, so lever is inoperative to main shaft, its power value has only the weight 300g of main shaft self.
2. camshaft 13 is rotated to 90 ° of positions, at this moment because the inclined-plane of push rod cam 21 relation at first makes crown bar bracket 9 descend, and push rod 6 is thrown off with lever 25, the position of carriage 9 as shown in phantom in Figure 1, all the other carriages, fork bracket position are constant.At this moment when eccentric wheel 26 rotates to the extreme lower position loading, the also corresponding decline of lever 25,1 of the hook pin on the lever is swung in the elongated slot of hook 2, and simultaneously because the decline of lever, the power of lever is delivered on the main shaft 28 by adjuster bar 27.At this moment power value is the weight sum of main shaft deadweight and lever, is 500g.
3. when camshaft 13 rotated to 180 ° of positions, push rod 6 was still thrown off with lever 25, and because the inclined-plane of suspension rod cam 23 descends boom crutch 8, the suspension rod position is shown in the dotted line of Fig. 1 middle hanger.At this moment boom crutch 8 separates with pallet 3a, and suspension rod 3 is hung on lever 25.When eccentric wheel 26 rotated to the extreme lower position loading, lever 25 descended, and suspension rod 3 also descends, but this moment, counterweight did not add as yet, so the power value is that main shaft is conducted oneself with dignity, lever weight and suspension rod weight sum, is 1kg.
4. when camshaft 13 rotated to 270 °, the inclined-plane of counterweight cam 19 had played effect, and crotch 10 is descended, in the crotch 1 shown in the dotted line of crotch.Crotch 10 is thrown off with counterweight 11, and counterweight 11 is loaded on the lever 25 by pallet 12, suspension rod 3.When eccentric wheel 26 rotated to the extreme lower position loading, this moment, the power value was main shaft deadweight, lever weight, suspension rod weight and counterweight weight sum, was 3kg.
Analogize according to above-mentioned principle, increase power value stepping,, and the camshaft anglec of rotation is divided into corresponding five equilibrium for 360 ° as long as on camshaft 13, increase the edge cam and the crotch quantity of corresponding counterweight and control counterweight again as need.When for example the power value desires to be divided into 6 grades (300g, 500g, 1kg, 3kg, 5kg, 10kg), increase by two groups of counterweight edge cams, two crotch, two counterweights (make and satisfy weight and be 5kg, 10kg) on camshaft 13 again, the handwheel revolution is one grade and gets final product for moving 60 °.
Claims (6)
1. one kind little load Vickers machinery loading system mainly comprises lever (25), main shaft (28), pressure head (24), eccentric wheel (26); The lower end of main shaft (28) is pressure head (24), and lever (25) is located at the top of main shaft (28), and lever (25) has and can make its eccentric wheel (26) around fulcrum (25a) swing lifting; It is characterized in that:
Described lever (25) with its fulcrum opposite end one push rod (6) is arranged, a suspension rod (3) and some counterweights that is added on suspension rod (3), all counterweights are provided with by different test force value requirement;
Described push rod (6) has two positions at least: can withstand lever (25) from below when being in a position, separate with lever (25) when being in the another location;
Described suspension rod (3) has two positions at least: when being in a position and lever (25) throw off, be hung on when being in the another location on the lever (25);
Described all counterweights all have two positions at least: when being in a position and suspension rod (3) throw off, add when being in another position on each the corresponding pallet that rests suspension rod (3).
2. according to the described little load Vickers machinery loading system of claim 1, it is characterized in that having the push rod cam (21) and the crown bar bracket (9) of one group of described push rod of may command (6) position, the suspension rod cam (23) of one group of described suspension rod of may command (3) position and boom crutch (8), and the counterweight cam and the counterweight crotch of the some groups of described all counterweights of may command positions; The group number of counterweight cam and counterweight crotch is identical with the counterweight number.
3. according to the described little load Vickers machinery loading system of claim 2, it is characterized in that described push rod cam (21), suspension rod cam (23) and all counterweight cams are coaxial edge cam.
4. according to claim 2 or 3 described little load Vickers machinery loading systems, it is characterized in that described push rod cam (21) and crown bar bracket (9), suspension rod cam (23) and boom crutch (8), and the counterweight crotch of all counterweight cams and correspondence all is located in the cam box; This cam box has a casing (22) and a camshaft (13), described push rod cam (21), suspension rod cam (23) and all counterweight cams all are fixedly arranged on this camshaft (13), and crown bar bracket (9), boom crutch (8) and all counterweight crotch are located at by each corresponding cam.
5. according to the described little load Vickers machinery loading system of claim 4, it is characterized in that described crown bar bracket (9) is hubbed on the fulcrum (9x) of cam box (22), the one end has a shelves nail or a roller (9a) that contacts with the cam curve of described push rod cam (21), its other end is positioned at the below of the pallet (6a) on the push rod (6), can be under the effect of cam curve around its fulcrum (9x) swing, hold this pallet (6a) or throw off with this pallet;
Described boom crutch (8) is hubbed on the fulcrum (8x) of cam box (22), the one end has a shelves nail or a roller (8a) that contacts with the cam curve of described suspension rod cam (23), its other end is positioned at the below of the pallet (3a) on the suspension rod (3), can be under the effect of cam curve around its fulcrum (8x) swing, hold this pallet (3a) or throw off with this pallet;
One of described counterweight crotch (10) is hubbed on the fulcrum (10x) of cam box (22), the one end has a shelves nail or a roller (10a) that contacts with the cam curve of described suspension rod cam (19), its other end is positioned at the top of the weight tray (12) on the suspension rod (3), can hold counterweight (11) or counterweight (11) is held on this weight tray (12) around its fulcrum (10x) swing under the effect of cam curve; All the other each counterweight crotch are identical with counterweight crotch (10) structure.
6. according to the described little load Vickers machinery loading system of claim 4, the below that it is characterized in that described camshaft (13) is provided with a pair of vertically disposed conical gear (14), (14), one handwheel (15) is housed on the bevel pinion shaft of horizontal level, and this handwheel (15) is marked with the sign with rotational angle position relative stress value.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201229316U CN2669176Y (en) | 2003-12-30 | 2003-12-30 | Mechanical loading device of small-load vicker hardness meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2003201229316U CN2669176Y (en) | 2003-12-30 | 2003-12-30 | Mechanical loading device of small-load vicker hardness meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2669176Y true CN2669176Y (en) | 2005-01-05 |
Family
ID=34439237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2003201229316U Expired - Fee Related CN2669176Y (en) | 2003-12-30 | 2003-12-30 | Mechanical loading device of small-load vicker hardness meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2669176Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102393341A (en) * | 2011-08-03 | 2012-03-28 | 湘潭大学 | Device for testing hardness, fracture toughness and residual stress of brittle material with indentation method |
| CN102788733A (en) * | 2011-05-20 | 2012-11-21 | 上海奥龙星迪检测设备有限公司 | Automatic force adjustment device for micro-Vickers hardness meter |
| CN103765187A (en) * | 2011-09-06 | 2014-04-30 | 伊利诺斯工具制品有限公司 | Apparatus for microscopic detection of hardness |
| CN105043893A (en) * | 2015-07-31 | 2015-11-11 | 中国科学院长春光学精密机械与物理研究所 | Small-load loading mechanism applied to tensile test in vacuum state |
-
2003
- 2003-12-30 CN CNU2003201229316U patent/CN2669176Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102788733A (en) * | 2011-05-20 | 2012-11-21 | 上海奥龙星迪检测设备有限公司 | Automatic force adjustment device for micro-Vickers hardness meter |
| CN102393341A (en) * | 2011-08-03 | 2012-03-28 | 湘潭大学 | Device for testing hardness, fracture toughness and residual stress of brittle material with indentation method |
| CN102393341B (en) * | 2011-08-03 | 2015-04-08 | 湘潭大学 | Indentation method for testing hardness, fracture toughness and residual stress of brittle material |
| CN103765187A (en) * | 2011-09-06 | 2014-04-30 | 伊利诺斯工具制品有限公司 | Apparatus for microscopic detection of hardness |
| CN103765187B (en) * | 2011-09-06 | 2016-06-01 | 伊利诺斯工具制品有限公司 | For the microscope detection equipment of hardness |
| CN105043893A (en) * | 2015-07-31 | 2015-11-11 | 中国科学院长春光学精密机械与物理研究所 | Small-load loading mechanism applied to tensile test in vacuum state |
| CN105043893B (en) * | 2015-07-31 | 2017-09-12 | 中国科学院长春光学精密机械与物理研究所 | Side crops industry load maintainer applied to tension test under vacuum state |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101358892B (en) | Dead weight type standard force source device with independently loading and unloading counterweight | |
| CN2669176Y (en) | Mechanical loading device of small-load vicker hardness meter | |
| CN102346066A (en) | Roller way weighing device | |
| CN114018482B (en) | Crankshaft dynamic balancing machine | |
| CN1287966A (en) | Withdrawing-back balancing wt. for straight beam type high above ground platform | |
| CN211061345U (en) | High-low temperature environment lasting tensile testing machine | |
| CN2725260Y (en) | Two Piece shearing hydraulic lifting plat form synchronous lifting mechanical device | |
| CN104165725A (en) | Automatic precise counterweight loading mechanism of torque standard machine | |
| CN206248479U (en) | A kind of loading device under long-term, constant load effect | |
| CN2831093Y (en) | Metal pendulum bob impact testing machine | |
| CN202274917U (en) | Roller way weighing device | |
| CN2581970Y (en) | Strain controlled three-shaft apparatus shearing device | |
| CN204514728U (en) | A kind of liner testing machine | |
| JP4765787B2 (en) | Material testing machine | |
| CN103302470B (en) | Split horizontal cylinder assembling machine | |
| CN206556986U (en) | Multi-functional endurance test rack | |
| CN2831059Y (en) | Combined poise system | |
| CN201507504U (en) | Hydraulic cylinder hydraulic load test fixture | |
| CN201170757Y (en) | Hydraulic steerable wheel loading tester | |
| CN2669177Y (en) | Primary-testing force change-over device of double Rockwell hardometer | |
| CN205397988U (en) | Lifting device for fatigue testing machine loading crossbeam | |
| CN109387360B (en) | Variable inertia flywheel system of fixed test bed | |
| CN209292982U (en) | A kind of storage station's gate lifting device | |
| CN207245282U (en) | The wire rope synchronous device of Double-hydraulic lifting equipment and apply its multi-storied garage | |
| CN209014228U (en) | Automobile connecting bar deflection test pressure apparatus |
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 |