CN201680981U - Impact property testing unit of rock drilling impactor - Google Patents
Impact property testing unit of rock drilling impactor Download PDFInfo
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- CN201680981U CN201680981U CN2010201281673U CN201020128167U CN201680981U CN 201680981 U CN201680981 U CN 201680981U CN 2010201281673 U CN2010201281673 U CN 2010201281673U CN 201020128167 U CN201020128167 U CN 201020128167U CN 201680981 U CN201680981 U CN 201680981U
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Abstract
The utility model discloses an impact property testing unit of a rock drilling impactor, which comprises a rock drilling impactor, a pressure hydraulic cylinder, an active hydraulic cylinder and a passive hydraulic cylinder, wherein the drill bit of the rock drilling impactor directly impacts the active hydraulic cylinder, the hydraulic pressure oil way between the active hydraulic cylinder and the passive hydraulic cylinder is provided with a damping component and a one-way valve, the active hydraulic cylinder and the passive hydraulic cylinder are respectively provided with a first pressure sensor and a second pressure sensor, the passive hydraulic cylinder is provided with an energy storage unit used for storing the energy which is transferred caused by the drive of the impact force, the active hydraulic cylinder and/or the passive hydraulic cylinder are/is respectively provided with a displacement sensor used for sensing the displacement of the piston thereof, and the signal output ends of the displacement sensor and the pressure sensor are connected with the signal input end of the property testing system. The testing unit of the utility model can reflect the impact frequency and energy of the impactor, and also can simulate the general effect of the crushing rock and punching speed of the impactor. The testing method of the testing unit of the utility model is simple and visual and is convenient to operate.
Description
Technical field
The utility model is a kind of impact property pick-up unit of rock drilling impacter, belongs to the renovation technique of the impact property pick-up unit of rock drilling impacter.
Background technology
Pneumatic or fluid pressure type rock drilling impacter all is to utilize high-pressure fluid as dynamic medium, drive the piston of knocker inside, make piston carry out high-speed, high-frequency to-and-fro movement, drill bit is applied a kind of periodical impulse force, thereby reach the effect of rubble boring with realization.The power performance of knocker directly influences the efficiency of breaking rock of percussion drilling.The frequency of impact of knocker and impact energy are most important two running parameters in the knocker various performance parameters.But research and actual field are used discovery, and these two running parameters have substantial connection with mechanical property, the knocker of rock to the conditions such as pre-pressing force size of rock again.Engineering circle has been studied the whole bag of tricks and has been solved the problem of this respect for a long time, but all respectively has its relative merits, particularly these methods to be difficult to accomplish the mechanical property of simulation rock easily, and carries out the serviceability test of high-speed high frequency contact on this basis.
Industry is interior at present is stress wave (seeing GB/T 5621-1999) to standard detecting method pneumatic or fluid pressure type rock drilling impacter impact property.According to relevant regulations in the standard, needed major equipment is the special or general drill steel that posts foil gauge, and the drill steel other end props up energy absorption device, and purpose is the energy reflection phenomenon not occur as far as possible.Even reflected energy occurs, also require reflected energy should not surpass 20% of incident wave energy, to simulate the energy that reflects by rock in actual applications.Strain-ga(u)ge transducer is posted in the appropriate location of drill steel, by gathering and handle the impact property that strain signal converses the knocker that impacts drill steel.This method has several key factors to handle well, otherwise the result who obtains has big difference.What for example, the length of drill steel and weight will be held is just right; Strain-ga(u)ge transducer will be calibrated, and generally calibrates by freely falling body, have any different with the situation of high-frequency percussion power, so error is bigger; Energy absorber must detect effect otherwise influence according to the energy-absorbing effect correspondence design of rock.Be exactly this method complexity specifically, influence factor is many, operation easier is big.
Also have in addition and be adapted at the so-called photoelectric displacement differential method, inductive electromagnetic method, contact method, high-speed photography method, pneumatic process, load-position diagram method and the energy method etc. that research institute adopts in the laboratory.But these methods substantially all are impact device pistons to be studied, and can only play the effect of indirect detection.Consider that the requirement of using in the actual production, these detection methods show test equipment and equipment complexity, inconvenient operation, people's operative technique is required too high, shortcomings such as workload is big, cost height.Because the actual working environment of knocker is abominable relatively, these methods all can't or be difficult in the working-yard and carry out real-time testing.Some method is in test process even will destroy some working mechanism of knocker inside, and the duty and the real work situation of knocker have bigger discrepancy when causing test.If when just requiring to carry out relatively to the knocker particular product performance parameters of different brands, different model, it is more unreliable, not directly perceived that these detection methods seem.
Knocker is in production application, no matter manufacturer or user, general all with the frequency of impact of knocker and impact energy as the quality of judging knocker or the main foundation of choosing knocker, if but the geographical environment and the service condition of complexity when considering that knocker is actual and using, also need on the basis of above-mentioned performance parameter, create a comprehensive performance reference quantity again, this comprehensive performance reference quantity not only can reflect the frequency of impact and the impact energy of knocker, and can also simulate the resultant effect that knocker smashes rock and punching speed.But existing method and device thereof all be difficult to satisfy this requirement.
The utility model content
The purpose of this utility model is to consider the problems referred to above and a kind of frequency of impact and impact energy that not only can detect knocker is provided, and can also simulate the impact property pick-up unit of rock drilling impacter that knocker smashes the resultant effect of rock and punching speed.It is all lower that the utility model is easy to demarcation, equipment cost and experimental cost.
The technical solution of the utility model is: the impact property pick-up unit of rock drilling impacter of the present utility model, include rock drilling impacter, knocker is fixed and is applied the hydraulic cylinder of exerting pressure of quantitative pre-pressing force, active hydraulic cylinder and passive hydraulic cylinder, the drill bit of rock drilling impacter directly hits initiatively hydraulic cylinder, initiatively on the hydraulic circuit between hydraulic cylinder and the passive hydraulic cylinder damping element and retaining valve are installed, initiatively hydraulic cylinder and passive hydraulic cylinder are respectively equipped with first pressure transducer and second pressure transducer of measuring its hydraulic parameter, be equipped with on the passive hydraulic cylinder and be used to store the energy storage device that drives the energy that passes over owing to impulsive force, initiatively hydraulic cylinder and/or passive hydraulic cylinder are respectively equipped with the displacement transducer of the displacement of measuring its piston, displacement transducer, the signal output part of first pressure transducer and second pressure transducer is connected with the signal input part of performance detecting system.
On the hydraulic circuit between above-mentioned active hydraulic cylinder and the passive hydraulic cylinder tensimeter is installed.
Above-mentioned performance detecting system is a computer-aided detection system.
Above-mentioned rock drilling impacter is pneumatic or the fluid pressure type rock drilling impacter.
Above-mentioned energy storage device is that weight or spring are or/and the composition body of weight and spring.
Above-mentioned damping element is the fluid damping hole.
The size of above-mentioned damping hole can be regulated.
The utility model has been avoided traditional detection method, and the impact device of having to is made the measure that some change its working mechanism in order directly to obtain the kinematic parameter of air hammer internal piston, thereby for guaranteeing that the accuracy that detects the performance parameter that deals provides the reliable premise condition; Device of the present utility model has been simulated the rock that knocker at the construction field (site) will smash boring well, and the working environment of knocker more approaches the working environment of working-yard when making test; Can obtain air hammer exactly and smash the final effect of exporting when the rock simulation is holed, rather than from the knocker internal piston, obtain indirectly; The utility model device is simple, easy to operate, be subjected to artificial influence less, can reuse, even the utility model device can be made into the checkout equipment of standard set air hammer, performance parameter to different air hammer products detects, compares, thereby reduces the cost that detects.In addition, the pressure that detects can be changed and depict a pressure curve as, for the design of optimizing air hammer provides foundation.The utility model is that a kind of design is ingenious, function admirable, the impact property pick-up unit of convenient and practical rock drilling impacter.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment 1;
Fig. 2 is the structural representation of the utility model embodiment 2.
Embodiment
Embodiment:
Structural representation of the present utility model as shown in Figure 1, the impact property pick-up unit of rock drilling impacter of the present utility model, include rock drilling impacter 1, knocker 1 is fixed and is applied the hydraulic cylinder 2 of exerting pressure of quantitative pre-pressing force, active hydraulic cylinder 4 and passive hydraulic cylinder 9, the drill bit 3 of rock drilling impacter 1 directly hits initiatively hydraulic cylinder 4, initiatively on the hydraulic circuit between hydraulic cylinder 4 and the passive hydraulic cylinder 9 damping element 6 and retaining valve 7 are installed, initiatively hydraulic cylinder 4 and passive hydraulic cylinder 9 are respectively equipped with first pressure transducer 5 and second pressure transducer 8 of measuring its hydraulic parameter, be equipped with on the passive hydraulic cylinder 9 and be used to store the energy storage device that drives the energy that passes over owing to impulsive force, initiatively hydraulic cylinder 4 and/or passive hydraulic cylinder 9 are respectively equipped with the displacement transducer 11 of the displacement of measuring its piston, displacement transducer 11, the signal output part of first pressure transducer 5 and second pressure transducer 8 is connected with the signal input part of performance detecting system.In the present embodiment, passive hydraulic cylinder 9 is provided with the displacement transducer 11 of the displacement of measuring its piston.
On the hydraulic circuit between above-mentioned active hydraulic cylinder 4 and the passive hydraulic cylinder 9 tensimeter is installed.
In the present embodiment, above-mentioned performance detecting system is a computer-aided detection system.
Above-mentioned rock drilling impacter 1 is pneumatic or the fluid pressure type rock drilling impacter.In the present embodiment, rock drilling impacter 1 is the pneumatic type rock drilling impacter.
Above-mentioned energy storage device 10 is that weight or spring are or/and the composition body of weight and spring.In the present embodiment, energy storage device 10 is a weight.
Above-mentioned damping element 6 is the fluid damping hole.The size of above-mentioned damping hole can be regulated.
The detection method of the impact property pick-up unit of the utility model rock drilling impacter, it comprises following process:
1) drill bit 3 of rock drilling impacter 1 directly hits initiatively hydraulic cylinder 4, first pressure transducer 5 and second pressure transducer 8 are measured the hydraulic parameter of active hydraulic cylinder 4 and passive hydraulic cylinder 9 respectively, first pressure transducer 5 is measured the initiatively mechanics data of hydraulic cylinder 4, energy storage device 10 on the passive hydraulic cylinder 9 stores owing to impulsive force drives the energy that passes over, and displacement transducer 11 is measured the displacement situation of active hydraulic cylinder 4 and/or passive hydraulic cylinder 9 pistons in real time;
2) performance detecting system is gathered the signal of first pressure transducer 5, second pressure transducer 8 and displacement transducer 11, thereby obtain simulating frequency of impact, percussion power and the impulsive force mechanics parameter of the experiment of rock drilling impacter 1 working-yard through Computer Processing, thereby obtain the practical working situation of rock drilling impacter 1.
Above-mentioned damping hole element 6 can be regulated damping, by regulating damping and can simulating the mechanical property of the rock that rock drilling impacter 1 hit in conjunction with hydraulic system.
Embodiment 2:
Structural representation of the present utility model as shown in Figure 2, the difference of present embodiment and embodiment 1 is that above-mentioned active hydraulic cylinder 4 is provided with the displacement transducer 11 of the displacement of measuring its piston, energy storage device 10 is a spring.
Claims (7)
1. the impact property pick-up unit of a rock drilling impacter, it is characterized in that including rock drilling impacter (1), knocker (1) is fixed and is applied the hydraulic cylinder of exerting pressure (2) of quantitative pre-pressing force, active hydraulic cylinder (4) and passive hydraulic cylinder (9), the drill bit (3) of rock drilling impacter (1) directly hits initiatively hydraulic cylinder (4), initiatively on the hydraulic circuit between hydraulic cylinder (4) and the passive hydraulic cylinder (9) damping element (6) and retaining valve (7) are installed, initiatively hydraulic cylinder (4) and passive hydraulic cylinder (9) are respectively equipped with first pressure transducer (5) and second pressure transducer (8) of measuring its hydraulic parameter, be equipped with on the passive hydraulic cylinder (9) and be used to store the energy storage device that drives the energy that passes over owing to impulsive force, initiatively hydraulic cylinder (4) and/or passive hydraulic cylinder (9) are respectively equipped with the displacement transducer (11) of the displacement of measuring its piston, displacement transducer (11), the signal output part of first pressure transducer (5) and second pressure transducer (8) is connected with the signal input part of performance detecting system.
2. the impact property pick-up unit of rock drilling impacter according to claim 1 is characterized in that on the hydraulic circuit between above-mentioned active hydraulic cylinder (4) and the passive hydraulic cylinder (9) tensimeter being installed.
3. the impact property pick-up unit of rock drilling impacter according to claim 1 is characterized in that above-mentioned performance detecting system is a computer-aided detection system.
4. the impact property pick-up unit of rock drilling impacter according to claim 1 is characterized in that above-mentioned rock drilling impacter (1) is pneumatic or fluid pressure type rock drilling impacter.
5. the impact property pick-up unit of rock drilling impacter according to claim 1, it is characterized in that above-mentioned energy storage device (10) for weight or spring or/and the composition body of weight and spring.
6. according to the impact property pick-up unit of each described rock drilling impacter of claim 1 to 5, it is characterized in that above-mentioned damping element (6) is the fluid damping hole.
7. the impact property pick-up unit of rock drilling impacter according to claim 6 is characterized in that the size of above-mentioned damping hole can be regulated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201281673U CN201680981U (en) | 2010-03-05 | 2010-03-05 | Impact property testing unit of rock drilling impactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201281673U CN201680981U (en) | 2010-03-05 | 2010-03-05 | Impact property testing unit of rock drilling impactor |
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| CN201680981U true CN201680981U (en) | 2010-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010201281673U Expired - Fee Related CN201680981U (en) | 2010-03-05 | 2010-03-05 | Impact property testing unit of rock drilling impactor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645100A (en) * | 2013-12-12 | 2014-03-19 | 中国地质大学（北京） | Single-tooth single-impact rock crushing experimental device |
| CN110631796A (en) * | 2019-10-09 | 2019-12-31 | 中国铁建重工集团股份有限公司 | Testing device |
| CN115356141A (en) * | 2022-10-21 | 2022-11-18 | 北京科技大学 | Impact performance testing system and method for hydraulic rock drill |
-
2010
- 2010-03-05 CN CN2010201281673U patent/CN201680981U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103645100A (en) * | 2013-12-12 | 2014-03-19 | 中国地质大学（北京） | Single-tooth single-impact rock crushing experimental device |
| CN103645100B (en) * | 2013-12-12 | 2015-08-26 | 中国地质大学（北京） | Monodentate single-impact detritus experimental provision |
| CN110631796A (en) * | 2019-10-09 | 2019-12-31 | 中国铁建重工集团股份有限公司 | Testing device |
| CN110631796B (en) * | 2019-10-09 | 2022-03-29 | 中国铁建重工集团股份有限公司 | Testing device |
| CN115356141A (en) * | 2022-10-21 | 2022-11-18 | 北京科技大学 | Impact performance testing system and method for hydraulic rock drill |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101222 Termination date: 20130305 |