CN201707267U - Electro-hydraulic cement pressure tester - Google Patents
Electro-hydraulic cement pressure tester Download PDFInfo
- Publication number
- CN201707267U CN201707267U CN2010202348312U CN201020234831U CN201707267U CN 201707267 U CN201707267 U CN 201707267U CN 2010202348312 U CN2010202348312 U CN 2010202348312U CN 201020234831 U CN201020234831 U CN 201020234831U CN 201707267 U CN201707267 U CN 201707267U
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- oil cylinder
- testing machine
- piston
- oil
- pipe
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Abstract
The utility model discloses an electro-hydraulic cement pressure tester, which comprises an upper cross beam, a lower cross beam, a vertical column, a cylinder, a pressurizing component and a travel control device of the cylinder, wherein the vertical column is connected between the upper cross beam and the lower cross beam, the cylinder arranged on the lower cross beam is provided with a return pipe and an oil inlet pipe, the pressurizing component is mounted on a cylinder piston, the travel control device comprises a limiting oil pipe which is mounted on the cylinder and used for decompression of a non-rod end chamber, and an oil port of the limiting oil pipe disposed in the cylinder clings to the lower side of the piston when the piston runs to the upper limit position. The electro-hydraulic cement pressure tester with the technical scheme has simplified structure and fine reliability.
Description
Technical field
The utility model relates to a kind of electronic-hydraulic type cement pressure tester, is mainly used in the check of standard cement compressive strength of specimens, belongs to the metering outfit technical field.
Background technology
Known, electronic-hydraulic type cement pressure tester generally adopts limit switch that its oil cylinder is carried out Stroke Control, but travel switch has certain serviceable life, if the contact of travel switch is aging, ablation, cause reflection insensitive, and make spacing inefficacy, cause oil cylinder piston to cross stroke and damage the resistance to compression anchor clamps by pressure.
No. 200720144097 utility model patent of China discloses a kind of testing machine that uses travel switch control oil cylinder stroke, this testing machine comprises the testing machine sill, on, lower position block, on, lower position switch, the oil cylinder limited block, also comprise gag lever post, guide plate, limit spring and spacing collision block, spacing in order to form, this class formation not only is simply to install travel switch, and a lot of annexes of the installation that will mate and the treatment circuit after obtaining the limit switch trigger pip and executive circuit and corresponding hydraulic actuator, complex structure forms the complicacy that control must cause controlling unit, and system's safety factor is reduced.
Further, in order to obtain in the high reliability of using under the travel switch controlled condition, such scheme also further is distributed in above-mentioned spacing device on the same gag lever post that is connected on the examination platform, play chain interlock effect, upper limit position block is in the gag lever post top, lower position block is in the gag lever post middle part, both are in the gag lever post position-adjustable, on, having between the lower position block can be along on the gag lever post on the sill of being connected, mobile down guide plate, with last, on the lower position block linkage work, lower position switch is distributed in the gag lever post lower lateral, on, the spacing collision block that fuses with gag lever post is arranged in the middle of the lower position switch, on described, lower position switch adopts the travel switch support with on them, under link into an integrated entity, described gag lever post lower end also is connected with the oil cylinder limited block, reach oil cylinder limit pull rod with the co-ordination of oil cylinder limited block, increased the complicacy of system virtually again, according to mechanical principle, the reliability coefficient of system depends on the long-pending of a link reliability coefficient, the reliability coefficient of accumulation is very difficult guaranteed, and perhaps cost is too big.
Summary of the invention
For this reason, the utility model provides a kind of electronic-hydraulic type cement pressure tester that only changes cylinder structure in order to overcome the drawback of using travel switch control testing machine oil cylinder stroke, with simplified structure, and effectively improves the reliability of testing machine.
The utility model is by the following technical solutions:
This utility model electronic-hydraulic type cement pressure tester, comprise entablature, sill and be connected in column between lower and upper cross-member, be arranged at oil cylinder with recirculatory pipe and oil inlet pipe and the pressure-applying unit that is installed on the oil cylinder piston on the sill, and the travel control device of this oil cylinder, described travel control device comprises that one is installed on the spacing oil pipe that is used for the rodless cavity release on the described oil cylinder, and this spacing oil pipe is next-door neighbour's piston underside place when in-oil cylinder hydraulic fluid port is positioned at described piston and runs to the limes superiors position.
According to the electronic-hydraulic type cement pressure tester of technical solutions of the utility model, adopt the mode of a spacing oil pipe to solve spacing problem, than the existing spacing problem of means control oil cylinder that adopts travel switch, simplified the structure that forms control device greatly.Simultaneously,,, otherwise can not lose efficacy unless stop up fully because said spacing oil pipe is a simple oil pipe, its reliability than the serviceable life of oil cylinder be a negligible problem at this.
About validity; because in case piston base is higher than the hydraulic fluid port of spacing oil pipe; spacing oil pipe just is communicated to rodless cavity; must form emptying at once, rush down pressure; and finally form the balance of unloading oil mass of the oil inlet quantity and the spacing oil pipe of oil inlet pipe; piston stops to rise, and has protected the resistance to compression anchor clamps can not be damaged.The foundation of above-mentioned balance simultaneously also can guarantee the normal pressurization of experimental machine, can obtain the pressurization value of the limit, and is more effective than travel switch control.
Above-mentioned testing machine, described oil cylinder sidewall also is provided with the lubricating oil pipe of piston.
Above-mentioned testing machine, described spacing oil pipe are provided with the sensor that detects liquid stream, and this sensor is used to drive a warning device.
Above-mentioned testing machine, described pressure-applying unit comprises the square iron that is installed in pistons end, is fixed with the following platen of experimental machine on this square iron, then is fixed with the last platen of experimental machine on the entablature accordingly.
Above-mentioned testing machine is formed with receiver on the described square iron.
Above-mentioned testing machine also comprises the base as the sill pedestal.
Description of drawings
Below in conjunction with Figure of description the technical solution of the utility model is further elaborated, more clearly statement is according to other additional technological means and technique effect of the present utility model, wherein:
Fig. 1 is the main TV structure synoptic diagram according to the electronic-hydraulic type cement pressure tester of technical solutions of the utility model.
Fig. 2 is the left TV structure synoptic diagram corresponding to Fig. 1.
Among the figure: 1, entablature, 2, column, 3, piston, 4, oil cylinder, 5, cylinder bottom, 6, sill, 7, base, 8, square iron, 9, receiver, 10, platen down, 11, go up platen, 12, register pin, 13, gib screw, 14, scavenge pipe, 15, lubricating oil pipe, 16, spacing oil pipe, 17, oil inlet pipe.
Embodiment
With reference to the electronic-hydraulic type cement pressure tester shown in Figure of description 1 and 2, comprise entablature 1, sill 6 and be connected in column 2 between lower and upper cross-member, be arranged at oil cylinder with scavenge pipe 14 and oil inlet pipe 17 4 and the pressure-applying unit that is installed on the oil cylinder piston 3 on the sill, and the travel control device of this oil cylinder, described travel control device comprises that one is installed on the spacing oil pipe 16 that is used for the rodless cavity release on the described oil cylinder, and this spacing oil pipe is next-door neighbour's piston underside place when in-oil cylinder hydraulic fluid port is positioned at described piston and runs to the limes superiors position.Among the figure shown in the double dot dash line is the resistance to compression anchor clamps.
More than statement is base case according to technical solutions of the utility model, other structures that those skilled in the art will readily appreciate that out the experimental machine outside the travel control device can be general with existing experimental machine, for this reason, those skilled in the art can need not pay the additional corresponding technological means of creative work in view of the above.
In order to satisfy result of use preferably, described oil cylinder sidewall also is provided with the lubricating oil pipe 15 of piston, and lubricating oil here significant feature is lubricated and sealing.
Provide the caution service for more effective to experiment operator, described spacing oil pipe is provided with the sensor that detects liquid stream, and this sensor is used to drive a warning device.Nature, in case oil-feed is to equilibrium establishment in the spacing oil pipe, experimental machine is in equilibrium state, pressure no longer increases, the laboratory technician is a warranty test efficient as long as note a little also observing naturally, can adopt the mode that automated watch-keeping facility is set, also be not limited to the setting of the sensor, also can adopt other detection mode.
Add, described pressure-applying unit comprises the square iron 8 that is installed in pistons end, is fixed with the following platen 10 of experimental machine on this square iron, then is fixed with the last platen 11 of experimental machine on the entablature accordingly.
For easy to use, be formed with receiver 9 on the described square iron.
For ease of pressurization and installation, this experimental machine also comprises the base 7 as the sill pedestal.
Claims (6)
1. electronic-hydraulic type cement pressure tester, comprise entablature (1), sill (6) and be connected in column (2) between lower and upper cross-member, be arranged at the oil cylinder (4) on the sill and be installed on pressure-applying unit on the oil cylinder piston (3) with scavenge pipe (14) and oil inlet pipe (17), and the travel control device of this oil cylinder, it is characterized in that: described travel control device comprises that one is installed on the spacing oil pipe (16) that is used for the rodless cavity release on the described oil cylinder, and this spacing oil pipe is next-door neighbour's piston underside place when in-oil cylinder hydraulic fluid port is positioned at described piston and runs to the limes superiors position.
2. testing machine according to claim 1 is characterized in that: described oil cylinder sidewall also is provided with the lubricating oil pipe (15) of piston.
3. testing machine according to claim 1 and 2 is characterized in that: described spacing oil pipe is provided with the sensor that detects liquid stream, and this sensor is used to drive a warning device.
4. testing machine according to claim 3 is characterized in that: described pressure-applying unit comprises the square iron (8) that is installed in pistons end, is fixed with the following platen (10) of testing machine on this square iron, then is fixed with the last platen (11) of testing machine on the entablature accordingly.
5. testing machine according to claim 4 is characterized in that: be formed with receiver (9) on the described square iron.
6. testing machine according to claim 1 is characterized in that: also comprise the base (7) as the sill pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202348312U CN201707267U (en) | 2010-06-24 | 2010-06-24 | Electro-hydraulic cement pressure tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202348312U CN201707267U (en) | 2010-06-24 | 2010-06-24 | Electro-hydraulic cement pressure tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201707267U true CN201707267U (en) | 2011-01-12 |
Family
ID=43444428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202348312U Expired - Lifetime CN201707267U (en) | 2010-06-24 | 2010-06-24 | Electro-hydraulic cement pressure tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201707267U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907542A (en) * | 2010-06-24 | 2010-12-08 | 济南试金集团有限公司 | Electronic-hydraulic type cement pressure tester |
| CN104483191A (en) * | 2014-12-30 | 2015-04-01 | 长安大学 | Cement compression resistance clamp for compression testing machine and usage method of clamp |
-
2010
- 2010-06-24 CN CN2010202348312U patent/CN201707267U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907542A (en) * | 2010-06-24 | 2010-12-08 | 济南试金集团有限公司 | Electronic-hydraulic type cement pressure tester |
| CN104483191A (en) * | 2014-12-30 | 2015-04-01 | 长安大学 | Cement compression resistance clamp for compression testing machine and usage method of clamp |
| CN104483191B (en) * | 2014-12-30 | 2017-11-14 | 长安大学 | A kind of pressure testing machine concrete compression-resistanmodifier fixture and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110112 |