CN2050605U - 50kn precision bending resistance tester - Google Patents
50kn precision bending resistance tester Download PDFInfo
- Publication number
- CN2050605U CN2050605U CN 89206456 CN89206456U CN2050605U CN 2050605 U CN2050605 U CN 2050605U CN 89206456 CN89206456 CN 89206456 CN 89206456 U CN89206456 U CN 89206456U CN 2050605 U CN2050605 U CN 2050605U
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- CN
- China
- Prior art keywords
- bending resistance
- oil cylinder
- plunger
- portal frame
- folding
- 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.)
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The 50 KN precision bending resistance tester of the utility model is a test instrument used to measure the bending resistance ultimate strength of the cement concrete. In the bending resistance tester, a manual double-embolism pump acts as the motive power element; an oil cylinder acts as the executive element. The operating lever is wrenched by hand, and then the pump starts working: the plunger piston moves downwards, and the standard specimen on the support machine installed on the work table panel gets the acting force of the upper ram; when the standard specimen reaches the bending resistance breaking limit, the bending resistance ultimate strength of the standard specimen can be learned from the Newton dictionary. The utility model which does not prepare the motive power source has the advantages of convenient and rapid test, accurate experiment, dapperness and portability.
Description
The utility model is about measuring a kind of test apparatus of the anti-folding of cement concrete ultimate strength.
In the prior art to the test of cement concrete ultimate strength, generally all be in testing station, minority center, to be undertaken by large-scale, universal testing machine, therefore sample is often wanted long-distance transporting, and is subjected to factor affecting such as sample presentation priority or power supply simultaneously again, so the test period is long, moreover large-scale, the universal testing machine of this class, it is complicated that texture ratio changes, and volume is big, and operation is also inconvenient, and cost an arm and a leg the experimentation cost height.
The purpose of this utility model is a kind of power source that need not of design, can be equipped with flexibly, and volume is small and exquisite, and conveniently moving help in time carrying out the anti-experimental test instrument of rolling over ultimate strength of on-site measurement cement concrete, and cost is low, and is easy for operation.
The purpose of this utility model reaches by following design philosophy and measure, on this tester portal frame right side duplex plunger pump is installed, and is connected with oil cylinder by oil pipe, and the duplex plunger pump operating rod is pulled in front and back, and the oil cylinder plunger is moved downward.On working plate, be provided with two groups of calibration mobile supporters, above standard sample is placed on, top die plate and plunger interlock, there are two groups can demarcate mobile last item and be fixedly placed on the top die plate, when plunger moves downward, transmit pressure by last item and act on constantly pressurization on the sample coupon, then can measure the limit rupture strength that test specimen destroys.Be to obtain concrete numerical value at this moment by newton's table on the tester.Last item on supporter on the working plate and the top die plate is calibration move, and changes the span that fractures.
The anti-folding of the utility model instrument is compared with large-scale, universal testing machine, its main advantages is to save the energy, shorten the test period, increase work efficiency, and can guarantee effectively that test data is accurate, the complete machine cost is low, simple in structure, easy to operate simultaneously, can apply in a flexible way in site test work.
Below in conjunction with embodiment, further specify the structure of the present utility model and the course of work with accompanying drawing.
Accompanying drawing 1 is the schematic appearance of the anti-folding of the utility model instrument.
Accompanying drawing 2 is duplex plunger pump structural drawing in the accompanying drawing 1.
Accompanying drawing 1 has been described one the 50000 anti-folding of Niu Jingmi instrument.Portal frame (1) is with No. 10 channel-section steels structural member as main body, and the right column inner chamber that utilizes portal frame (1) injects a certain amount of hydraulic oil as fuel tank in the fuel tank.Duplex plunger pump (2) is as the power source of this tester, pull operating rod (4) with hand, hydraulic oil can pass through fuel sucking pipe (3) and be pressed into oil cylinder plunger (6) through filtering surface, top die plate (8) is connected with oil cylinder plunger (6) with screw through web joint, on top die plate (8), be provided with two groups of calibration mobile last items (7), when pulling operating rod (4) repeatedly, oil cylinder plunger (6) can drive top die plate (8) and move downward.Portal frame (1) is connected and fixed with screw with the cross pedestal, working plate (10) is fixed on the cross pedestal, two groups of calibration mobile supporters (9) have the corresponding hole of demarcating span to install and fix on working plate (10), when standard specimen (11) is placed on the supporter (9), when being subjected to top die plate (8) backfin downwards, the newton's table (5) that is connected with oil cylinder plunger (6) can indicate pressure data at any time, when test specimen (9) reached anti-folding breaking limit and fractures, newton's table (5) then indicated the anti-folding of test specimen (9) ultimate strength.When being positioned at the extension spring (12) of oil cylinder plunger (6) side-by-side mounting on portal frame (1) and top die plate (8) web joint, shrinks by the relief lever that unclamps duplex plunger pump (2) (18) (among Fig. 2), make hydraulic oil oil sump tank in the cylinder, top die plate (8) is got back to the original position with oil cylinder plunger (6).
Accompanying drawing 2 has been described manual double plunger pump structure, two double plunger (2) arranged side by side are arranged in the pump housing (22), hand is pulled operating rod (4) can make briquetting (13) swing around bearing pin (14), and then drive double plunger (2) up-down alternative motion respectively through two plunger pins (15), thereby realize change oil cylinder volume and form suction, press the course of work of oil, plug screw (16), plug cock (23) and seal (17), (19), (20) etc. all play sealing function, steel ball (21) is positioned at double plunger (2) lower end and the fuel tank junction plays disconnected, open the effect of oil circuit, unclamp relief lever (18), can make pump be in unloading condition, then this handle (18) be locked during pump work.
The utility model is simple in structure, easy to make, duplex plunger pump overall dimensions 130mm * 76mm * 50mm, two plunger φ 8mm, oil cylinder adopt single acting plunger oil cylinder as executive component, cylinder diameter 50mm, stroke 50mm, it is through the pressure 50 thousand newton tables special with the conversion of cylinder diameter relation, maximum range 50,000 newton that two extension springs adopt B-2.5 * 22 * 86 specifications, newton's table. For the anti-folding ultimate strength of suitable on-site measurement cement concrete, good effect is arranged, and can develop series of products according to actual needs.
Claims (3)
1, the anti-folding of the precision instrument of the anti-folding of a kind of test water cement concrete ultimate strength, by duplex plunger pump, oil cylinder, newton's table, portal frame, working plate and supporter, compositions such as top die plate and last item, it is characterized in that duplex plunger pump (2) is installed in the right side of portal frame (1), be connected with oil cylinder plunger (6) by oil pipe (3), top die plate (8) is connected with oil cylinder plunger (6) with screw through web joint, be provided with two groups of calibration mobile last items (7) on top die plate (8), portal frame (1) is connected and fixed with screw with the cross pedestal, and working plate (10) is fixed on the cross pedestal, two groups of calibration mobile supporters (9) are arranged on its working plate (10), be provided with the extension spring (12) that is suspended on portal frame (1) and top die plate (8) web joint in oil cylinder plunger (6) both sides.
2, the anti-folding of precision according to claim 1 instrument is characterized in that being provided with steel ball (21) in double plunger (2) lower end and fuel tank junction.
3, the anti-folding of precision according to claim 1 instrument is characterized in that portal frame (1) adopts No. 10 channel-section steels, and its right column inner chamber is as fuel tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89206456 CN2050605U (en) | 1989-04-29 | 1989-04-29 | 50kn precision bending resistance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89206456 CN2050605U (en) | 1989-04-29 | 1989-04-29 | 50kn precision bending resistance tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2050605U true CN2050605U (en) | 1990-01-03 |
Family
ID=4863498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89206456 Withdrawn CN2050605U (en) | 1989-04-29 | 1989-04-29 | 50kn precision bending resistance tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2050605U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435499A (en) * | 2011-09-22 | 2012-05-02 | 王文明 | Method and device for detecting compressive strength of concrete by bending method |
| CN103630445A (en) * | 2013-11-30 | 2014-03-12 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Concrete core sample bending testing device |
| CN111337284A (en) * | 2020-03-27 | 2020-06-26 | 黄五月 | On-site detection device and detection method for building main body structure |
-
1989
- 1989-04-29 CN CN 89206456 patent/CN2050605U/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102435499A (en) * | 2011-09-22 | 2012-05-02 | 王文明 | Method and device for detecting compressive strength of concrete by bending method |
| CN102435499B (en) * | 2011-09-22 | 2013-05-29 | 王文明 | Method and device for detecting stress strength of concrete by bending method |
| CN103630445A (en) * | 2013-11-30 | 2014-03-12 | 安徽省（水利部淮河水利委员会）水利科学研究院 | Concrete core sample bending testing device |
| CN103630445B (en) * | 2013-11-30 | 2016-08-17 | 安徽省（水利部淮河水利委员会）水利科学研究院 | A kind of concrete core sample bending testing device |
| CN111337284A (en) * | 2020-03-27 | 2020-06-26 | 黄五月 | On-site detection device and detection method for building main body structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |