A kind of asphalt marshall compaction instrument measuring apparatus
Technical field
The utility model relates to measuring apparatus field, particularly relates to a kind of asphalt marshall compaction instrument measuring apparatus.
Background technology
Current JJG (traffic) 065-2006 " asphalt marshall compaction instrument vertification regulation " is the standard verification to asphalt marshall compaction instrument, due in process of the test, compaction hammer moves up and down, produce with guide rod in compaction hammer dropping process and rub, and the contact situation that compaction hammer and test specimen hit real face cannot ensure, so be difficult to ensure that test specimen obtains enough to hit actual effect fruit, it is inadequate for only measuring in stationary state the effect that the parameter such as the maximum lifting height of compaction hammer, the quality of compaction hammer evaluates specimen molding.
Utility model content
The purpose of this utility model is to propose a kind of asphalt marshall compaction instrument measuring apparatus, this asphalt marshall compaction instrument measuring apparatus can be made can to measure the compaction hammer hoisting depth of asphalt marshall compaction instrument accurately, and energy quantitative measurment compaction hammer is to the effect of specimen molding.
For reaching this object, the utility model by the following technical solutions:
A kind of asphalt marshall compaction instrument measuring apparatus, comprise the base on the plancon being positioned at marshall compaction instrument, be positioned at the force snesor on described base, be positioned at the cushion on described force snesor, also comprise sleeve and support, described base, force snesor, cushion is all fixed in sleeve, described support is provided with the first distance measuring sensor and the second distance measuring sensor, described asphalt marshall compaction instrument measuring apparatus also comprises and described force snesor, first distance measuring sensor, the signal picker that second distance measuring sensor all connects, the PC communicated to connect with described signal picker, described first distance measuring sensor is for measuring the jumping height of the guide rod of asphalt marshall compaction instrument, described second distance measuring sensor is for measuring the hoisting depth of the hammer of asphalt marshall compaction instrument, described force snesor is for measuring the impulsive force of the hammer of asphalt marshall compaction instrument.
Further, described first distance measuring sensor and the second distance measuring sensor all adopt laser range sensor, and described force snesor adopts dynamic impulsion force snesor.
Further, described support adopts A-frame, and described A-frame is provided with The Cloud Terrace, and described The Cloud Terrace is provided with slide bar, and described first distance measuring sensor and the second distance measuring sensor are all located on described slide bar.
Further, the axis collinear of the Laser emission end of described first distance measuring sensor and the guide rod of asphalt marshall compaction instrument, described second distance measuring sensor is positioned at below the first distance measuring sensor, and described second distance measuring sensor makes its laser beam reflex on the hammer of asphalt marshall compaction instrument by catoptron.
Further, described base is provided with the first groove, and described force snesor is located in described first groove, is fixed by briquetting and base.
Further, described base edge is provided with three slots, and described slot is used for the signal wire empty avoiding to force snesor.
Further, described base bottom is provided with the second groove, is provided with workbench between the plancon of asphalt marshall compaction instrument and base, and described workbench is provided with the projection with described second groove interference fit.
Further, the lower end of the sidewall of described sleeve has rectangular indentation.
Further, described cushion adopts industrial felt pad.
The beneficial effects of the utility model have:
A kind of asphalt marshall compaction instrument measuring apparatus that the utility model proposes, measures the hoisting depth of hammer automatically by the first distance measuring sensor, the second distance measuring sensor and signal picker; The impulsive force waveform is dynamically obtained by force snesor and signal picker; This measuring apparatus measurement result is accurate, and energy quantitative measurment compaction hammer, to the effect of specimen molding, adapts to industry needs.
Accompanying drawing explanation
Fig. 1 is the structural representation of the asphalt marshall compaction instrument measuring apparatus that the utility model embodiment provides;
Fig. 2 is the module frame chart of the asphalt marshall compaction instrument measuring apparatus that the utility model embodiment provides;
Fig. 3 is the front view of the force snesor that provides of the utility model embodiment and base;
Fig. 4 is the vertical view of the force snesor that provides of the utility model embodiment and base;
Fig. 5 is the front view of the sleeve that the utility model embodiment provides;
Fig. 6 is the vertical view of the sleeve that the utility model embodiment provides.
In figure, 1, asphalt marshall compaction instrument; 2, plancon; 3, base; 4, sleeve; 5, compaction head; 6, guide rod; 7, hammer; 8, limited block; 9, support; 10, force snesor; 11, cushion; 12, the first distance measuring sensor; 13, the second distance measuring sensor; 14, signal picker; 15, PC; 16, The Cloud Terrace; 17, slide bar; 18, Laser emission end; 19, catoptron; 20, briquetting; 21, slot; 22, the second groove; 23, rectangular indentation.
Embodiment
The technical solution of the utility model is further illustrated by embodiment below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2, a kind of asphalt marshall compaction instrument measuring apparatus, for the effect of hammer 7 pairs of specimen moldings of quantitative measurment asphalt marshall compaction instrument 1, in order to clearly show the embodiment of asphalt marshall compaction instrument measuring apparatus, the structure of asphalt marshall compaction instrument 1 is described at this, asphalt marshall compaction instrument 1 comprises plancon 2, compaction head 5, guide rod 6, be sheathed on the hammer 7 on guide rod 6, be located at the limited block 8 on guide rod 6 top, compaction head 5 and guide rod 6 are structure as a whole, at the trial, bitumen mixture specimen is put between plancon 2 and compaction head 5.
Asphalt marshall compaction instrument measuring apparatus comprise be positioned at marshall compaction instrument plancon on 2 base 3, be positioned at the force snesor 10 on base 3, be positioned at the cushion 11 on force snesor 10, also comprise sleeve 4 and support 9, described base 3, force snesor 10, cushion 11 is all fixed in sleeve 4, support 9 is provided with the first distance measuring sensor 12 and the second distance measuring sensor 13, asphalt marshall compaction instrument measuring apparatus also comprises and force snesor 10, first distance measuring sensor 12, the signal picker 14 that second distance measuring sensor 13 all connects, the PC 15 communicated to connect with signal picker 14, first distance measuring sensor 12 is for measuring the jumping height of the guide rod 6 of asphalt marshall compaction instrument, second distance measuring sensor 13 is for measuring the hoisting depth of the hammer 7 of asphalt marshall compaction instrument, force snesor 10 is for measuring the impulsive force of the hammer 7 of asphalt marshall compaction instrument, by force snesor 10, first distance measuring sensor 12, second distance measuring sensor 13 and signal picker 14 obtain the impulsive force waveform under dynamic test, impulsive force Wave data is processed by PC 15, on average added up compactive effort, thus improve the need calibrating project of asphalt marshall compaction instrument 1, the hoisting depth of dynamically lower hammer is obtained by the first distance measuring sensor 12, second distance measuring sensor 13 and signal picker 14.
Cushion 11 has elasticity, can obtain good signal waveform and simultaneously protection sensor 10.
In the present embodiment, the first distance measuring sensor 12 and the second distance measuring sensor 13 all adopt laser range sensor, and force snesor 10 adopts dynamic impulsion force snesor.
For the ease of regulating height, support 9 adopts A-frame, A-frame is provided with The Cloud Terrace 16, The Cloud Terrace 16 is provided with slide bar 17, and the first distance measuring sensor 12 and the second distance measuring sensor 13 are all located on slide bar 17, and The Cloud Terrace 16 has the balanced system of continuous variable, adjustable restraining horizontal stroke and lockable, The Cloud Terrace 16 has independently translation and pitch control subsystem, realizes translation and all-directional rotation, is convenient to the optimum position adjusting test.
The Laser emission end 18 of the first distance measuring sensor 12 and the axis collinear of guide rod, second distance measuring sensor 13 is positioned at below the first distance measuring sensor 12, second distance measuring sensor 13 makes its laser beam reflex on hammer 7 by catoptron 19, because the hammer 7 of current most of asphalt marshall compaction instrument 1 and guide rod 6 are all positioned at narrow box space, adopt catoptron 19 to reflect the laser beam of the second distance measuring sensor 13 on the upper surface of hammer 7, make the second distance measuring sensor 13 be convenient to install and the lifting displacement of energy Measurement accuracy hammer 7.
The structure of the base 3 that the present embodiment provides as shown in Figures 3 and 4, base 3 is provided with the first groove, force snesor 10 is located in the first groove, fixed by briquetting 20 and base 3, base 3 edge is provided with three slots 21, slot 21 is for the signal wire empty avoiding to force snesor 10, base 3 bottom is provided with the second groove 22, workbench is provided with between plancon 2 and base 3, workbench is provided with the projection with the second groove 22 interference fit, be convenient to firm banking 3, prevent force snesor 10 from hitting moving and beating in real process.
The structure of the sleeve 4 that the present embodiment provides as shown in Figure 5 and Figure 6, in the present embodiment, compaction head 5 is placed in sleeve 4, and be placed on cushion 11, sleeve 4 ensures that hammer 7 falls and compaction head 5 collision rift, compaction head 5 can not eject outside sleeve 4, thus guarantees that the impulsive force that hammer 7 falls can effectively be delivered on force snesor 10; The lower end of the sidewall of sleeve 4 has rectangular indentation 23, for carrying out empty avoiding to the signal wire of force snesor 10.
Cushion 11 adopts industrial felt pad, also can adopt other cushions.
Obviously, above-described embodiment of the present utility model is only to clearly demonstrate the utility model example, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.All do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., within the protection domain that all should be included in the utility model claim.