JP2016121478A - Evaluation device for compactor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an evaluation device for a compactor, which can reduce initial costs by using a single evaluation device shared between a plurality of compactors, eliminate complex input work and prevent a problem from occurring due to an input error by automatically configuring corresponding information of a compactor to be used.SOLUTION: By providing a mounting base 10 for an evaluation device 1 on each of a vibratory roller vehicle 2 and a rammer 3, the single valuation device 1 can be shared between the compactors. The device stores in advance in a memory 4a a calculation formula configured for each compactor to calculate the basic vibration frequency of the compactor and a turbulence factor that correlates with the compaction degree of a road surface during compaction work, and when using a compactor, automatically measures a basic vibration to identify which compactor the evaluation device 1 is currently mounted, reads out the calculation formula corresponding to the compactor from the memory 4a to apply it to the calculation of a turbulence factor.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a compaction machine evaluation apparatus, and more particularly to a compaction evaluation apparatus that evaluates the degree of compaction of a road surface during compaction work.

  This type of compacting machine, for example, a boarding type vibration roller vehicle on which an operator is boarded or a non-boarding type runner is widely used for road compaction work in road construction or the like. Since the compaction work must be performed until the road surface reaches the specified compaction degree, conventionally, the compaction work is interrupted as appropriate, and the operator measures the density (for example, sand replacement method, plate loading method, RI density) Etc.) to check whether or not the specified degree of compaction has been reached. However, such a manual management method requires a great amount of labor and time, and causes a delay in the compacting operation. Therefore, an evaluation that evaluates and displays the degree of compaction in real time during the compacting operation is performed. The device has been put into practical use.

  For example, the evaluation apparatus described in Patent Document 1 focuses on the fact that a correlation is established between the frequency component included in the vibration acceleration of the rolling wheel and the degree of compaction during the compacting operation by the vibration roller vehicle. Then, a quantitative turbulence rate is calculated from the vibration acceleration of the rolling wheel by frequency spectrum analysis, and based on the relationship between the turbulence rate and the degree of compaction obtained in advance, the road surface compaction degree is calculated from the calculated turbulence rate. It is evaluated and displayed.

Japanese Patent No. 3908031

  According to the evaluation apparatus described in Patent Document 1, since the degree of compaction can be grasped in real time without requiring labor and time and without interrupting the compaction work, the compaction work can be efficiently promoted. . However, if a large number of compacting machines are individually equipped with an evaluation device, a new problem of enormous initial costs arises.

  As a solution, it is conceivable that a single evaluation device can be arbitrarily attached to and detached from a plurality of compaction machines, and the evaluation device is reused (so-called reuse) between the compaction machines. . However, in order to calculate the disturbance rate by the evaluation device, specific information possessed by each compaction machine is required. Specifically, a calculation formula set in advance is applied to the calculation process of the turbulence rate (corresponding to the formula (1) described in the embodiment), and the calculation formula includes the basic frequency and the basic vibration of the compacting machine. It is necessary to substitute the order component of the number, and the fundamental frequency and the order of the frequency component to be substituted differ depending on the individual compaction machine. For this reason, when using a compacting machine, it is necessary to input these information each time, and the input work is complicated, and if the wrong compaction is evaluated due to erroneous input, the road surface quality deteriorates. There is also the possibility of letting you.

  The present invention has been made to solve such problems, and the object of the present invention is to reduce the initial cost by diverting a single evaluation device among a plurality of compaction machines. The present invention provides an evaluation device for a compacting machine that automatically sets information corresponding to the compacting machine to be used, eliminates the need for complicated input work, and avoids problems caused by erroneous input. There is.

  In order to achieve the above object, a compaction machine evaluation apparatus according to the present invention is a compaction machine evaluation apparatus that evaluates the degree of compaction of a road surface, and includes a plurality of devices that vibrate a vibrating body and compact a road surface. Quantitative turbulence rate is calculated by frequency spectrum analysis based on the frequency spectrum analysis of the mounting means that can be detachably attached to different types of compaction machines, the basic frequency of each compaction machine, and the vibration acceleration of the vibrating body accompanying compaction of the road surface. Storage means for storing each calculation formula set for each compaction machine, and during operation of the compaction machine attached by the attachment means, the basic frequency based on the vibration acceleration of the vibration body of the compaction machine And the basic frequency calculated by the basic frequency calculating means are compared with the basic frequency of each compaction machine stored in the storage means. The model identification means for identifying the type of the compacting machine attached by the above-mentioned method, and the calculation formula for the turbulence rate corresponding to the model of the compaction machine identified by the model identification means are read from the storage means and tightened using the calculation formula. A compaction degree evaluation means for calculating a disturbance rate based on the vibration acceleration of the vibrating body during the compacting operation by the compacting machine and evaluating the degree of compaction of the road surface based on the disturbance rate is provided.

  According to the compaction machine evaluation apparatus of the present invention, it is possible to reduce the initial cost by diverting a single evaluation apparatus among a plurality of compaction machines, and to provide information corresponding to the compaction machine to be used. It is possible to automatically set and eliminate complicated input work, and to avoid troubles caused by erroneous input.

It is explanatory drawing which shows typically the relationship between the evaluation apparatus of embodiment and the some compaction machine where the evaluation apparatus is diverted. It is a block diagram which shows the structure of an evaluation apparatus. It is a perspective view which shows the instrument panel and attachment base which were provided in the driver's seat of the vibration roller vehicle. It is a perspective view which shows the attachment base provided in the operation handle of the rammer. It is a graph which shows the vibration acceleration detected by the acceleration sensor in the case of a vibration roller vehicle. It is the graph which similarly represented the vibration acceleration as a distribution for every frequency range by frequency spectrum analysis. It is a graph which shows the vibration acceleration detected by the acceleration sensor in the case of a rammer. It is the graph which similarly represented the vibration acceleration as a distribution for every frequency range by frequency spectrum analysis. It is a flowchart which shows the model specific routine which a microcomputer performs.

Hereinafter, an embodiment of a compacting machine evaluation apparatus embodying the present invention will be described.
FIG. 1 is an explanatory view schematically showing the relationship between the evaluation apparatus of the present embodiment and a plurality of compacting machines to which the evaluation apparatus is diverted, and FIG. 2 is a block diagram showing the configuration of the evaluation apparatus.
As shown in FIG. 1, in this embodiment, the single evaluation apparatus 1 is diverted between the vibration roller vehicle 2 and the rammer 3 as a compacting machine. The evaluation device 1 has a box shape, and a microcomputer 4 (hereinafter referred to as a microcomputer) and a battery 5 are accommodated therein. The microcomputer 4 includes an input / output device (not shown), a memory 4a (storage means) such as a ROM and a RAM for storing control programs and control maps, a central processing unit (CPU), a timer counter, and the like.

  As will be described later, the microcomputer 4 receives power supplied from the battery 5 and executes a process for specifying the type of the compacting machine to which the evaluation device 1 is attached and a process for evaluating the degree of compaction of the road surface during the compacting operation. To do. Therefore, in the memory 4a, the basic frequency of the compaction machine (here, the vibration roller vehicle 2 and the rammer 3) to which the evaluation device 1 may be attached, and the vibration body accompanying the compaction of the road surface by each compaction machine. It was set for each compaction machine to calculate the turbulence rate that correlates with the degree of compaction of the road surface from the vibration acceleration of the front roller wheel 15 of the vibration roller vehicle 2 and the shoe 28 of the ramper 3 as will be described later. Each calculation formula is stored.

  The power supply of the evaluation apparatus 1 is not limited to the above. For example, the battery 5 in the evaluation apparatus 1 is omitted, and instead, the evaluation apparatus 1 is supplied with power from a compacting machine to which the evaluation apparatus 1 is currently attached. Also good.

  On the front surface of the evaluation device 1, a large number of LEDs 9 are arranged together with three types of switches 6 to 8 so as to draw a curve simulating a graph, and these switches 6 to 8 and the LEDs 9 are electrically connected to the microcomputer 4. Has been. The power switch 6 commands ON / OFF of the power supply of the evaluation device 1, the model specifying switch 7 commands specific processing of the type of the compacting machine to which the evaluation device 1 is attached, and the evaluation switch 8 is the degree of compaction of the road surface. The function of instructing the evaluation process is provided. Each LED 9 has a function of displaying the degree of compaction of the road surface during the compacting operation, and the LEDs 9 are sequentially lit from the left side as the compaction degree is improved.

  The evaluation device 1 as described above can be freely attached to and detached from the vibration roller vehicle 2 and the ramp 3. For this purpose, the instrument panel 19 of the vibration roller vehicle 2 and the operation handle 26 of the rammer 3 are each provided with an attachment base 10 (attachment means) having the same structure. Hereinafter, the outline of each compacting machine and the detachment of the evaluation apparatus 1 by the mounting base 10 will be described.

  The vibration roller vehicle 2 is a boarding type compacting machine on which an operator rides and operates, and is configured by connecting a front vehicle body 12 and a rear vehicle body 13 so as to be bent in the horizontal direction by an articulating mechanism 14. . The front vehicle body 12 is provided with a front roller wheel 15 (vibrating body) made of an iron wheel, and the rear vehicle body 13 is provided with a rear roller wheel 16 made of a rubber tire. An operator who has boarded the vibration roller vehicle 2 operates the steering wheel 17 and the forward / reverse lever 18 and the vibration roller vehicle 2 rotates the front and rear rolling wheels 15 and 16 accordingly to tighten the road surface while traveling. At the same time, it is bent by the articulate mechanism 14 and the course is changed appropriately. Although not shown, the front rolling wheel 15 includes a vibration generator having a weight at an eccentric position and a hydraulic motor that rotationally drives the vibration element. Accordingly, the front rolling wheel 15 is vibrated and the road surface is compacted efficiently.

FIG. 3 is a perspective view showing the instrument panel 19 and the mounting base 10 provided in the driver seat of the vibration roller vehicle.
The instrument panel 19 includes equipment necessary for driving the vibration roller vehicle 2 such as a steering wheel 17, a meter 20, and a switch 21, and a square mounting base 10 is provided on the left side of the instrument panel 19. Are integrally formed so as to open toward the rear (operator side). The evaluation device 1 can be fitted into the mounting base 10 and is prevented from falling out of the mounting base 10 by the magnetic force of the magnet 22 (mounting means) provided on the bottom surface of the mounting base 10. It can be gripped and pulled out from the mounting base 10. The means for attaching the evaluation apparatus 1 is not limited to the magnet 22 and can be arbitrarily changed. For example, the evaluation apparatus 1 may be attached by a thumbscrew or the like.

  On the other hand, as shown in FIG. 1, the rammer 3 is a non-boarding type compacting machine in which an operator grips and operates the operation handle 26 of the main body frame 25, and a guiding portion 27 is extended downward from the main body frame 25. The shoe 28 (vibrating body) is fixed to the lower end. A prime mover 29 is mounted in the main body frame 25 and is operated by supplying fuel from a fuel tank 30 disposed on the main body frame 25. The rotation of the prime mover 29 is converted into a reciprocating motion in the vertical direction by a crank mechanism (not shown), and this reciprocating motion is transmitted to the shoe 28 via a coil spring (not shown) built in the guiding portion 27 and vibrates. The operator grips the operation handle 26 of the ramper 3 and adjusts the rotation of the prime mover 29 with the accelerator lever to move the ramper 3 appropriately on the road surface for compaction.

FIG. 4 is a perspective view showing the mounting base 10 provided on the operation handle 26 of the rammer 3.
The operation handle 26 has a rectangular frame shape extending on the operator side (left side in the figure), and a mounting base 10 that is formed in a square shape and opens upward is disposed on the right side of the frame. Yes. Although not redundantly described, the evaluation device 1 can be arbitrarily attached to and detached from the mounting base 10 by using the magnet 22 in the same manner as the vibration roller vehicle 2 described above.

  On the other hand, the process of specifying the compaction machine type and the process of evaluating the degree of compaction by the evaluation apparatus 1 are performed based on detection information from the acceleration sensor 32. For this reason, as shown in FIG. 2, the evaluation apparatus 1 is provided with an acceleration sensor 32, and both 1 and 32 are always handled together. Further, the front roller wheel 15 of the vibration roller vehicle 2 and the shoe 28 of the rammer 3 are provided with a mechanism for detachably fixing the acceleration sensor 32, for example, a female screw portion for fixing the acceleration sensor 32 with a bolt. In the compaction operation by each compaction machine, the acceleration sensor 32 is fixed to the front rolling wheel 15 and the shoe 28 as shown in FIG.

As shown in FIG. 2, the evaluation apparatus 1 is provided with a cable connection portion 1a (connection portion), and an acceleration sensor 32 is detachably connected to the cable connection portion 1a via a power line 33 and a signal line 34. It is like that. As a result, the microcomputer 4 and the acceleration sensor 32 in the evaluation device 1 are connected by wire, and the acceleration sensor 32 is activated by the power supply from the evaluation device 1 through the power line 33, and the vibration acceleration of the front rolling wheel 15 and the shoe 28 is reduced. To detect. The detection signal output from the acceleration sensor 32 is input to the microcomputer 4 of the evaluation apparatus 1 through the signal line 34. Since the front rolling wheel 15 is rotating during the compacting operation by the vibration roller vehicle 2, the power line 33 and the signal line 34 are connected to the acceleration sensor 32 via a slip ring or the like.
The evaluation device 1 and the acceleration sensor 32 may be connected wirelessly. In this case, the acceleration sensor 32 is provided with a battery for supplying power, and the detection information is transmitted to the evaluation device 1 by radio waves or infrared rays. Just send it.

The evaluation apparatus 1 configured as described above is used in the form described below.
The end user of this type of compacting machine is, for example, a construction contractor or a rental contractor, and any one of them prepares a single evaluation device 1 (including an acceleration sensor 32) for the vibration roller vehicle 2 and the runner 3. deep. In the case of a construction contractor, an employee who actually uses a compacting machine, a subcontractor, or the like may use the evaluation device 1 between the vibration roller vehicle 2 and the ramp 3.

  In the case of a rental company, for example, a rental plan that does not include the evaluation device 1 and a rental plan that includes the evaluation device 1 are prepared and are selected by the customer. When a rental plan without the evaluation device 1 is selected, only the compacting machine is lent, and when a rental plan with the evaluation device 1 is selected, the evaluation device 1 and the acceleration sensor 32 may be lent together with the compaction machine.

  The actual compaction procedure is as follows. First, the evaluation device 1 is attached to the mounting base 10 of the vibration roller vehicle 2 or the runner 3, and the acceleration sensor 32 is fixed to the front rolling wheel 15 or the shoe 28 and connected to the evaluation device 1 by wire. After the power switch 6 of the evaluation apparatus 1 is turned ON, the evaluation switch 8 is operated together with the start of the compacting operation. The vibration acceleration of the front rolling wheel 15 and the shoe 28 detected by the acceleration sensor 32 is input to the evaluation device 1, and the degree of compaction of the road surface is sequentially evaluated by the microcomputer (consolidation degree evaluation means), and the evaluation result Accordingly, the LED 9 is turned on.

  The principle of evaluation of the degree of compaction by the microcomputer 4 at this time is disclosed in Patent Document 1 and the like, so only a brief description will be given. For example, in the case of the vibration roller vehicle 2, the vibration acceleration detected by the acceleration sensor 32 is represented by the graph shown in FIG. 5 with time on the horizontal axis and acceleration on the vertical axis. The graph of FIG. 6 represents the distribution for each region. The main component included in the vibration waveform at the beginning of the compaction operation is about 40 Hz, which is the basic frequency of the front compaction wheel 15, whereas the front compaction wheel is caused by the hardening of the road surface as the compaction work proceeds. The repulsive force to 15 becomes stronger, and the vibration waveform gradually contains more secondary and tertiary frequency components in addition to the fundamental frequency.

ここに、Ｆは前部転圧ローラの起振力、ｍ₁ は振動ローラ車両のフレーム質量、ｍ2 は前部転圧ローラの質量である。式(1)中の「高調波」が、各次数の振動数成分の総和を表し、この式では３次までの振動数成分が加算されるようになっている。 Therefore, the frequency component of the order that increases remarkably with the progress of compaction work is identified, and the turbulence rate according to the following formula (1) is used as a quantitative index that correlates with the degree of compaction based on the frequency component. Is calculated.

Here, F is the vibration force of the front roller, m ₁ is the frame mass of the vibrating roller vehicle, and m ₂ is the mass of the front roller. The “harmonic” in the equation (1) represents the sum of the frequency components of each order, and in this equation, the frequency components up to the third order are added.

  The relationship between the disturbance rate calculated in this way and the number of LEDs 9 to be lit by the evaluation apparatus 1 is determined in advance, and the microcomputer 4 turns on the LEDs 9 corresponding to the disturbance rate. As the vibration roller vehicle 2 travels (position displacement on the road surface), the microcomputer 4 sequentially calculates the disturbance rate, and the lighting state of the LED 9 is sequentially changed according to the disturbance rate. Therefore, the operator can grasp in real time whether or not the current point is sufficiently compacted based on the number of lighting of the LED 9, and can quickly perform the compaction of the deficient portion.

  On the other hand, for example, when the compacting operation by the vibration roller vehicle 2 is finished and then the rammer 3 is used, the evaluation device 1 is detached from the attachment base 10 of the vibration roller vehicle 2 and attached to the attachment base 10 of the rammer 3. Similarly, the acceleration sensor 32 is also attached from the vibration roller vehicle 2 to the ramp 3. As a result, the degree of road surface compaction by the RAMA 3 is displayed as the number of lighting of the LEDs 9 on the evaluation device 1 as described above.

  By the way, as described in [Problems to be Solved by the Invention], the fundamental frequency and the order of the frequency components to be substituted into the equation (1) differ depending on the individual compaction machines. For example, the vibration acceleration and frequency distribution after frequency spectrum analysis in the case of the ramper 3 are as shown in FIGS. As is clear from comparison with FIGS. 5 and 6, in the case of the ramper 3, the fundamental frequency is about 70 Hz higher than that of the vibration roller vehicle 2, and as can be seen from FIG. 8, the higher frequency range. It is necessary to substitute into equation (1). In other words, the turbulence rate calculation formula to be applied differs between the vibrating roller vehicle 2 and the ramp 3.

  Therefore, in this embodiment, the operation test of the vibration roller vehicle 2 and the rammer 3 is performed in advance, and the optimum calculation formulas for calculating the respective disturbance rates are derived, and those calculation formulas are calculated as described above. 4 is stored in the memory 4a. When using the compacting machine, a model is specified based on the automatically measured fundamental frequency, and a calculation formula corresponding to the model is selected and applied to the compaction degree evaluation. The process executed by will be described.

FIG. 9 is a flowchart showing a model specifying routine executed by the microcomputer 4. When the model specifying switch 7 of the evaluation device 1 is operated, the routine is executed by the microcomputer 4.
For example, when the vibration roller vehicle 2 is used, the operator operates the model specifying switch 7 and causes the vibration roller vehicle 2 to travel while operating the vibration generator as in the compacting operation. Alternatively, the front rolling wheel 15 may be vibrated by operating the vibrator while the vehicle 2 is stopped. The same applies to the case of the ramper 3, and the compacting operation may be actually performed, or the prime mover 29 may be operated and the shoe 28 may be simply vibrated.

ここに、ａは振動加速度の波形から求めた最大加速度、Ａは同じく波形の最大振幅である。 The microcomputer 4 starts the routine of FIG. 9 when the model specifying switch 7 is operated, reads the vibration acceleration from the acceleration sensor 32 at a predetermined interval (for example, every 10 msec) in step S1, and sequentially stores it in its own memory 4a. . When this process is repeated for a predetermined time, the process proceeds to step S2, and the basic frequency is calculated according to the following equation (2) based on the stored vibration acceleration data (basic frequency calculating means).

Here, a is the maximum acceleration obtained from the waveform of vibration acceleration, and A is the maximum amplitude of the waveform.

  In the subsequent step S3, the type of compaction machine is specified based on the calculated fundamental frequency. That is, the calculated fundamental frequency is compared with the fundamental frequency of each compaction machine stored in the memory 4a, and it is assumed that the evaluation device 1 is attached to the compaction machine having the same fundamental frequency. (Model identification means).

  If the vibration roller vehicle 2 is specified in step S3, the calculation formula corresponding to the vibration roller vehicle 2 is read from the memory 4a in step S4. If the random number 3 is specified in step S3, the random number is determined in step S5. After the calculation formula corresponding to 3 is read from the memory 4a, the routine is terminated.

Therefore, in the subsequent compaction operation, the disturbance rate is calculated according to the above procedure based on the read calculation formula, and the compaction degree is displayed by the LED 9.
Alternatively, the model specifying switch 7 may be omitted, and when the evaluation switch 8 is operated, the model specifying process may be performed first, and then the compaction degree evaluation process may be started based on the selected calculation formula.

  As described above, according to the compaction machine evaluation apparatus 1 of the present embodiment, since the single evaluation apparatus 1 is used between the vibration roller vehicle 2 and the rammer 3, these vibration roller vehicle 2 and The initial cost when purchasing the Ranma 3 can be minimized. Then, when using the compacting machine, the basic frequency is automatically measured to identify the compacting machine to which the evaluation device 1 is currently attached, and the corresponding calculation formula is read from the memory 4a and the disturbance is detected. This is applied to the rate calculation process. Therefore, since no complicated input work at the time of use is required and there is no possibility of erroneous input, good road surface quality can always be realized based on an appropriate evaluation of the degree of compaction.

  Further, since the acceleration sensor 32 can be arbitrarily fixed to the front roller wheel 15 of the vibration roller vehicle 2 and the shoe 28 of the rammer 3, the vibration roller vehicle 2 and the rammer 3 can be used not only for the evaluation device 1 but also for the acceleration sensor 32. Can be diverted between. Therefore, the vibration roller vehicle 2 and the rammer 3 can be operated only by the single acceleration sensor 32, and the initial cost can be further reduced.

  Further, without using the acceleration sensor 32 in this way, the acceleration sensor 32 may be provided in advance on the front rolling wheel 15 of the vibration roller vehicle 2 and the shoe 28 of the rammer 3, respectively. In this case, another effect of saving the effort of fixing the acceleration sensor 32 to the front rolling wheel 15 or the shoe 28 can be obtained. When the evaluation device 1 is attached to the compacting machine, the acceleration sensor 32 It is only necessary to connect the power line 33 and the signal line 34 to the cable connection part 1a of the evaluation apparatus 1.

This is the end of the description of the embodiment, but the aspect of the present invention is not limited to this embodiment. For example, in the above embodiment, the evaluation device 1 is diverted between the vibration roller vehicle 2 and the runner 3, but the invention is not limited to these, and it may be a compacting machine that vibrates a vibrating body and compacts the road surface. Can be arbitrarily changed. For example, it may be applied to a boarding type Macadam roller, or a non-boarding type plate compactor or a hand guide roller, and the evaluation device 1 may be used between these compacting machines.
Moreover, in the said embodiment, although the disturbance rate was displayed by the lighting state of LED9 provided in the evaluation apparatus 1, it does not restrict to this. For example, when the disturbance rate corresponding to a good degree of compaction is reached by repetition of compaction work, the light may be turned on to notify the operator. In addition, sound may be used instead of such visual notification. For example, the disturbance rate is read as a numerical value, or the tone of the notification sound emitted from the buzzer is changed from low to high according to the change of the disturbance rate. May be switched automatically or the period of the intermittent sound may be shortened.

DESCRIPTION OF SYMBOLS 1 Evaluation apparatus, 1a Cable connection part (connection part), 2 Vibrating roller vehicle (consolidation machine), 3 Ramma (consolidation machine), 4 Microcomputer (basic frequency calculation means, model specification means, compaction degree evaluation means) 4a memory (storage means), 10 mounting base (mounting means), 15 front rolling wheel (vibrating body), 22 magnet (mounting means), 28 shoe (vibrating body), 32 acceleration sensor

Claims (3)

A compaction machine evaluation device for evaluating the degree of compaction of a road surface,
Mounting means for detachably attaching to a plurality of different types of compaction machines that vibrate a vibrating body and compact a road surface;
In order to calculate the basic vibration frequency of each compacting machine and the vibration acceleration of the vibrating body accompanying the compaction of the road surface as a quantitative disturbance rate by frequency spectrum analysis, a calculation formula set for each compacting machine is used. Storage means for storing each;
Basic frequency calculation means for calculating a basic frequency based on vibration acceleration of a vibration body of the compacting machine during operation of the compacting machine mounted by the mounting means;
The fundamental frequency calculated by the fundamental frequency calculation means is compared with the fundamental frequency of each compaction machine stored in the storage means, and the compaction attached by the attachment means based on the comparison result. Model identification means for identifying the machine model,
The calculation formula of the disturbance rate corresponding to the compacting machine model specified by the model specifying means is read from the storage means, and the vibration acceleration of the vibrating body during the compacting work by the compacting machine is read using the calculation formula. A compaction machine evaluation apparatus comprising: a compaction degree evaluation unit that calculates the disorder rate based on the disturbance rate and evaluates a degree of compaction of the road surface based on the disorder rate. The evaluation device has an acceleration sensor that can be arbitrarily fixed to the vibrating body of each compaction machine,
The acceleration sensor is fixed to a vibration body of the compacting machine and connected to the evaluation device when the evaluation device is attached to any of the compacting machines by the mounting means.
2. The compacting machine evaluation device according to claim 1, wherein the basic frequency calculating means and the compaction degree evaluating means execute processing based on vibration acceleration detected by the acceleration sensor. 3. The evaluation device has a connection portion that can be arbitrarily connected to an acceleration sensor provided in each vibration body of the compaction machine, and when the evaluation device is attached to any compaction machine by the attachment means, Connected to the acceleration sensor of the compacting machine through the connection part,
2. The compacting machine according to claim 1, wherein the basic frequency calculating means and the compaction degree evaluating means execute respective processes based on vibration acceleration detected by the connected acceleration sensor. Evaluation device.

Images