CN102864729A - Pavement milling machine and operation method thereof - Google Patents
Pavement milling machine and operation method thereof Download PDFInfo
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- CN102864729A CN102864729A CN201210357751XA CN201210357751A CN102864729A CN 102864729 A CN102864729 A CN 102864729A CN 201210357751X A CN201210357751X A CN 201210357751XA CN 201210357751 A CN201210357751 A CN 201210357751A CN 102864729 A CN102864729 A CN 102864729A
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- 238000003801 milling Methods 0.000 title claims abstract description 216
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- 244000309464 bull Species 0.000 claims description 12
- 230000005540 biological transmission Effects 0.000 claims description 8
- 238000003701 mechanical milling Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 7
- 238000005259 measurement Methods 0.000 description 5
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Abstract
The invention discloses a road milling machine and an operation method thereof, the road milling machine comprises a milling depth display and leveling device, a support leg oil cylinder (4), a wheel mounting frame (5), a machine frame (8) and a milling drum (7) arranged below the machine frame (8), the wheel mounting frame (5) supports the machine frame (8) through the support leg oil cylinder (4), the milling depth display and leveling device comprises a depth simulation controller (1) and a coiling rope (2), the coiling rope (2) is coiled in the depth simulation controller (1) and extends out of the depth simulation controller and is fixedly connected to the wheel mounting frame (5), and the depth simulation controller (1) is used for detecting and displaying the variable quantity of the extending length of the coiling rope (2) and is arranged on the machine frame (8) to follow the lifting movement of the milling drum (7). The mechanical milling depth display and leveling device can be manually adjusted or reset, is convenient to operate, is particularly convenient for operators to carry out multi-cutter milling operation, and has higher milling precision and good smoothness.
Description
Technical field
The present invention relates to a kind of pavement milling machine, particularly, relate to a kind of pavement milling machine and milling and plane operation method thereof that can accurately show the milling degree of depth.
Background technology
As depicted in figs. 1 and 2, the small-sized pavement milling machine of the common small size maintenance milling construction that is used for town road, when milling and plane operation, generally adopt the scale 10(circle amplifier section with scale) directly be installed in the outer sleeve of milling machine rear support leg oil cylinder 4, when scale 10 is pressed certain installation requirement (namely on ground grading, when milling and planing drum 7 is down to the ground even contact, the scale value of stretching out of scale 10 is 0) install after, the milling degree of depth is directly reflected into stretching out on the scale of scale 10, namely along with the intensification of milling, the scale of extension represents the actual milling degree of depth on the scale 10.
But change need to be installed accurately and be difficult to afterwards to this scale on request when dispatching from the factory, and consider job area and the general job requirement of small-sized pavement milling machine, and the scale precision of this scale 10 is usually not high, can only reflect roughly the milling degree of depth.Scale 10 scales reflect that directly left and right wheels 6 that the milling degree of depth also is only applicable to this pavement milling machine is in the situation of same plane construction, and the scale 10 under this situation stretches out scale and just reflects the actual milling degree of depth, as shown in Figure 1.Yet when actual milling and plane operation, left and right wheels 6 often is not in the same plane construction, and as shown in Figure 2, the scale of the right scale 10 has reflected the actual milling degree of depth, and the scale of left side scale 10 can not reflect the actual milling degree of depth.Operating personnel obviously are difficult to intuitively with reference to graduated scale 10, be not easy to operation, and because the precision of scale 10 scales is not enough, although can be in milling width when milling the first cutter milling smooth, can there be error equally but the reading by scale when milling the second cutter calculates the milling degree of depth of the second cutter, causes being difficult to the second cutter milling road surface is connected smooth with the first cutter milling road surface.
Summary of the invention
The purpose of this invention is to provide a kind of pavement milling machine and operational method thereof, this pavement milling machine can accurately reflect the milling degree of depth when operation, handled easily, and the milling road surface is more smooth.
To achieve these goals, the invention provides a kind of pavement milling machine, this pavement milling machine comprises support oil cylinder, the wheel installing rack, frame and the milling and planing drum that is installed in this frame below, described wheel installing rack supports described frame by described support oil cylinder, wherein, this pavement milling machine also comprises milling Depth display and levelling device, this milling Depth display and levelling device comprise Simulation of depth controller and serving, one end of this serving is wound in the described Simulation of depth controller, the other end is connected on the described wheel installing rack, described Simulation of depth controller is installed on the described frame, to detect and to show the variable quantity of the extension elongation of described serving.
Preferably, described Simulation of depth controller comprises housing, be installed in the first axis of rotation and the second axis of rotation in this housing and be located at this housing outer pointer and dial, described the first axis of rotation is provided with the first drive, bull wheel and back-moving spring, described the second axis of rotation is provided with the second drive that is in transmission connection with described the first drive, wherein, described serving is wound on the described bull wheel, described back-moving spring is used for when described bull wheel rotation described the first axis of rotation applied to reset screwing power, and described pointer is installed on described the second axis of rotation to follow rotation.
Preferably, described the first drive and the second drive are gear.
Preferably, described back-moving spring is wind spring or torsion spring.
Preferably, described Simulation of depth controller also comprises the regulating part be used to the initial pretightning force of regulating described back-moving spring, and this regulating part is installed on outside the described housing and is connected in the end of described back-moving spring.
Preferably, described Simulation of depth controller also comprises a plurality of bearings that are installed in the described housing, and the two ends of described the first axis of rotation and the second axis of rotation are arranged in respectively in the described bearing.
Preferably, described Simulation of depth controller also comprises the pointer adjusting nut, the end that described pointer is installed on described the second axis of rotation forms the end of thread, this end of thread is provided with stage portion, and described pointer adjusting nut is bolted on the described end of thread and described pointer is resisted against on the stage portion of the described end of thread.
Preferably, this pavement milling machine also comprises the mounting bracket that is located at described support oil cylinder top, and described Simulation of depth controller is set to be fixedly mounted on the described mounting bracket so that described serving is tight and be connected in vertically described wheel installing rack.
In addition, the present invention also correspondingly provides a kind of operational method of pavement milling machine, this pavement milling machine is the above-mentioned pavement milling machine of the present invention, be respectively arranged with described milling Depth display and levelling device on the wheel installing rack of the frame both sides of this pavement milling machine, this operational method comprises: before carrying out milling and plane operation described Simulation of depth controller is carried out zero clearing, namely by described support oil cylinder described milling and planing drum is dropped to and contact road surface to be milled, simultaneously with the milling Depth display value zero clearing of two described Simulation of depth controllers; When carrying out milling and plane operation, by described support oil cylinder described milling and planing drum is descended, until the milling Depth display value of described Simulation of depth controller is to stop when presetting the milling depth value descending, then handle the forward milling of described pavement milling machine.
Preferably, dig the face that mills and first dig higher second the digging and mill on the face and described the second plane is milled face dig when milling operation of the face that mills than this if two wheels installing in the wheel installing rack of described frame both sides are in respectively first, obtaining first described first digs the face that mills and the second plane and mills difference in height A between the face, then described pavement milling machine is rested on the same level, to be in described second digs the described Simulation of depth controller mill face one side and carries out zero clearing, be in simultaneously the negative value that the described first milling Depth display value of digging the described Simulation of depth controller that mills face one side is set to described difference in height A, at last described the second plane milled face and carry out described milling and plane operation.
Pass through technique scheme, according to milling Depth display and levelling device are installed on the pavement milling machine of the present invention, serving one end is connected to the wheel installing rack, the other end is wound in the Simulation of depth controller, the Simulation of depth controller is followed together knee-action of frame and milling and planing drum, thereby can reflect the milling degree of depth by the overhang changing value that detects serving.But this mechanical device manual adjustment or zero clearing, handled easily, especially the handled easily personnel carry out the multitool milling and plane operation, and the milling precision is higher, and planarization is good.
Other features and advantages of the present invention will partly be described in detail in the specific embodiment subsequently.
Description of drawings
Accompanying drawing is to be used to provide a further understanding of the present invention, and consists of the part of manual, is used from explanation the present invention with the following specific embodiment one, but is not construed as limiting the invention.In the accompanying drawings:
Fig. 1 is the structural representation of small-sized pavement milling machine common in the prior art, and wherein, the both sides wheel of this pavement milling machine is in the same plane, and scale portion amplifies signal;
Fig. 2 is the structural representation of small-sized pavement milling machine shown in Figure 1, and wherein, the both sides wheel of this pavement milling machine is in respectively on two planes of differing heights;
Fig. 3 is the structural representation of the pavement milling machine of a preferred embodiment of the invention, and wherein, the both sides wheel of this pavement milling machine is in the same plane;
Fig. 4 is the structural representation of the Simulation of depth controller of a preferred embodiment of the invention;
Fig. 5 is pointer in the Simulation of depth controller shown in Figure 4 and the structural representation of dial;
Fig. 6 is the structural representation of pavement milling machine shown in Figure 3, and wherein, the both sides wheel of this pavement milling machine is in respectively on two planes of differing heights.
Description of reference numerals
1 Simulation of depth controller, 2 servings
3 drag hooks, 4 support oil cylinders
5 wheel installing racks, 6 wheels
7 milling and planing drums, 8 frames
9 mounting brackets, 10 scales
11 first axis of rotation, 12 second axis of rotation
13 housings, 14 pointers
15 dials, 16 bull wheels
17 first drives, 18 back-moving springs
19 second drives, 20 regulating parts
21 bearings, 22 pointer adjusting nuts
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is elaborated.Should be understood that, the specific embodiment described herein only is used for description and interpretation the present invention, is not limited to the present invention.
In the present invention, in the situation that do opposite explanation, the noun of locality of use as " upper and lower " normally for direction shown in the drawings or for vertically, each parts mutual alignment relationship description word on the vertical or gravity direction.
As shown in Figure 3, the invention provides a kind of pavement milling machine, this pavement milling machine comprises support oil cylinder 4, wheel installing rack 5, frame 8 and is installed in the milling and planing drum 7 of these frame 8 belows, and wheel installing rack 5 is by support oil cylinder 4 frames 8.Wherein, this pavement milling machine also comprises milling Depth display and levelling device, this device comprises Simulation of depth controller 1 and serving 2, this serving 2 is wound in the Simulation of depth controller 1 and therefrom stretches out and be fixedly attached on the wheel installing rack 5, and Simulation of depth controller 1 is for detection of with the variable quantity of the extension elongation that shows serving 2 and be installed on the frame 8 to follow the elevating movement of milling and planing drum 7.As total design, the invention is intended to avoid the nonadjustable signal that utilizes as shown in Figure 1 to show the shortcoming of the milling degree of depth, make pavement milling machine when milling and plane operation, can accurately reflect the milling degree of depth, and handled easily.Therefore, for the especially small-sized pavement milling machine of pavement milling machine, a kind of mechanical type milling Depth display and levelling device that can detect and show the milling degree of depth of ad hoc meter, for the milling Depth display of existing nonadjustable signal form, can have the more flexibility of high accuracy and installation, operation, as following will be descriptively, can can reflect the real milling degree of depth by the leveling operation, and non-mechanical scale value.And the planeness of more high-precision milling Depth display value can improve the multitool milling time.Wherein, can be connected to wheel installing rack 5 by drag hook 3 as shown in Figure 3 by the end with serving 2, thereby be in relative permanent position, and the other end is wound in the Simulation of depth controller 1.When the operating process of milling machine, milling and planing drum 7 and frame 8 move up or down together, and 1 of Simulation of depth controller is followed the vertical movement of carrying out the milling direction.During milling and planing drum 7 downward milling, 2 of servings bounce back in the Simulation of depth controller 1, when milling and planing drum 7 upwards promotes, 2 of servings are pulled out from Simulation of depth controller 1, Simulation of depth controller 1 then can converse the milling degree of depth by the extension elongation that detects serving 2, thereby the principle of this mechanical type milling Depth display and levelling device is all comparatively simple with installation, but compared to fixed scale, obviously can have more high accuracy, but and installation and all manual control or operations of show value.
Wherein it will be understood by those skilled in the art that, can be designed to various electronic type products for detection of the Simulation of depth controller 1 with the extension elongation variable quantity that shows serving 2, for example by displacement sensor induction and the accurate extension elongation that detects serving 2, then show by display screen.This electronic type product often needs to carry out somewhat complex design in conjunction with control system, and the development and production cost is higher, the electronic type levelling device that for example adopts on the large-scale pavement milling machine, and the single product cost is up to some ten thousand yuan.Therefore as a kind of preferred embodiment, at a kind of mechanical type Simulation of depth controller 1 corresponding to telescopic serving of this design.As shown in Figure 4 and Figure 5, this Simulation of depth controller 1 comprises housing 13, be installed in the first axis of rotation 11 and the second axis of rotation 12 in this housing 13 and be located at this housing 13 pointer 14 and dial 15 outward, the first axis of rotation 11 is provided with the first drive 17, bull wheel 16 and back-moving spring 18, the second axis of rotation 12 is provided with the second drive 19 that is in transmission connection with the first drive 17, wherein serving 2 is wound on the bull wheel 16, back-moving spring 18 is used for when bull wheel 16 rotation the first axis of rotation 11 applied to reset screwing power, and pointer 14 is installed on the second axis of rotation 12 to follow rotation.The operating principle of this mechanical type Simulation of depth controller 1 is: the tensioning serving 2(on being wound on bull wheel 16 is steel cable for example) when under the tension of back-moving spring 18, stretching with the change of the milling degree of depth, meanwhile, first drive 17 coaxial with bull wheel 16 drives the second drive 19 with certain gearratio rotation, and swing along with the rotation of the second drive 19 with the coaxial pointer 14 of the second drive 19, this moment, pointer 14 scale value on the indicated dial 15 when swinging can accurately be converted into the milling degree of depth as shown in Figure 5.
In the mechanical type of the above-mentioned Simulation of depth controller structure, for so that pointer 14 indicated values can accurately reflect the milling degree of depth, then need between each mechanical part operation especially transmission precisely and accuracy high.The wherein particularly importantly rotation of flexible drive first axis of rotation 11 of serving 2 and the transmission between the first and second axis of rotation.Therefore, be preferably simple in structure between the first drive 11 and the second drive 12 and with respect to the transmissions such as belt wheel transmission gear transmission mode more accurately.Wherein, gear ratio is larger between the second drive 19 and the first drive 17, namely in the constant situation of the number of teeth of the first drive 17, the number of teeth of the second drive 19 is more, then the shown milling depth value of whole circle is larger on the dial 15, measurement category is larger, but the scale relative accuracy on whole circle is little, and the plant bulk direct ratio amplifies.If the milling depth value of required measurement is little, then the gear ratio between the second drive 19 and the first drive 17 can reduce, namely in the constant situation of the number of teeth of the first drive 17, the number of teeth of the second drive 19 can reduce, the milling depth bounds that whole circle shows on the dial 15 is little, but precision improves, and installs also smaller and more exquisite.Therefore, can be according to parameters such as the type of milling machine, the especially milling degree of depth of milling machine size, select the suitable gear ratio between the second drive 19 and the first drive 17, when having enough measurement categorys with assurance, guarantee more excellent certainty of measurement and the reasonable size of Simulation of depth controller.
The flexible synchronous rotary that will drive the first axis of rotation 11 of serving 2 then needs to apply certain pretightning force by 18 pairs of the first axis of rotation 11 of back-moving spring.This back-moving spring 18 can be wind spring or torsion spring etc.As shown in Figure 4, for easy for installation, adopt the Mainspring type wind spring in the present embodiment, wind spring should be regulated as required to the pretightning force size that the first axis of rotation 11 applies, especially initial pretightning force.Therefore, Simulation of depth controller 1 in the present embodiment also can comprise the regulating part 20 for the initial pretightning force of regulating back-moving spring 18, this regulating part 20 is installed on outside the housing 13 and can acts on the back-moving spring 18, for example is connected in the end of back-moving spring 18.When back-moving spring 18 was wind spring, regulating part 20 can be hook-like part and is hooked on the inner of wind spring, loosened to screw wind spring or to make it by turn regulating part 20, to regulate the initial pretightning force of wind spring.As shown in Figure 4, this regulating part 20 in the present embodiment forms hook elements, is arranged on the outer so that manually-operated of housing 13, and this hook elements can be used to screw the wind spring in the housing 13, to adjust the initial tension of serving 2 under the wind spring effect.In addition as shown in Figure 4, the first axis of rotation 11 and the second axis of rotation 12 are bearing in respectively on a plurality of bearings 21 in the housing 13, and this bearing 21 can be installed on the bearing mounting base in the housing 13.
For pointer 14 being installed and being made it to follow the second axis of rotation 12 synchronous rotaries, in a kind of preferred mounting structure of pointer shown in Figure 4 14, the end that pointer 14 is installed on this second axis of rotation 12 forms the end of thread, be bolted with pointer adjusting nut 22 on the end of thread, pointer 14 can be set in (for example on the escape) on this end of thread by its erection loop, and is pressed against by screwing of pointer adjusting nut 22 on the stage portion of the end of thread.Like this when pointer adjusting nut 22 is tightened, pointer 14 is followed the second axis of rotation 12 synchronous rotaries, when needing the indicating positions of manual adjustment pointer 14, can unclamp pointer adjusting nut 22, stir pointer 14 and wanted corresponding indicating positions with indication, then tighten pointer adjusting nut 22 and get final product.
Above-mentioned milling Depth display and levelling device in use, serving 2 needs tight and vertical stretching, thus Simulation of depth controller 1 also should be arranged on serving 2 directly over, namely wheel installing rack 5 directly over.For making things convenient for the installation of Simulation of depth controller 1, this pavement milling machine also can comprise the mounting bracket 9 that is located at support oil cylinder 4 tops, Simulation of depth controller 1 can be installed in easily on this mounting bracket 9 and regulate horizontal installation site, so that serving 2 is tight and be connected in vertically wheel installing rack 5.Certainly in specific structure, Simulation of depth controller 1 also can be installed on other structure member, and for example on the outer sleeve of support oil cylinder 4, but this structure member should be able to move up and down synchronously with frame 8 and milling and planing drum 7 at least.
In addition, the present invention is also corresponding to provide a kind of the present invention of employing the operational method of above-mentioned pavement milling machine, be respectively arranged with above-mentioned milling Depth display and levelling device on the wheel installing rack 5 of frame 8 both sides of this pavement milling machine, this operational method comprises: before carrying out milling and plane operation Simulation of depth controller 1 is carried out zero clearing, namely by support oil cylinder 4 milling and planing drum 7 is dropped to and contact road surface to be milled, simultaneously with the milling Depth display value zero clearing of two Simulation of depth controllers 1, the point of a knife even contact of namely treating milling and planing drum 7 is during to ground, unclamp pointer adjusting nut 22, pointer 14 is allocated to 0 scale position on the dial 15, then tightens pointer adjusting nut 22.After finishing cleanup step, can rise frame 8 and milling and planing drum 7, milling machine enters the milling state for the treatment of.At this moment, carry out the milling construction if the left and right wheels of milling machine 6 is in the same plane, then when carrying out milling and plane operation, can by support oil cylinder 4 milling and planing drum 7 be descended on the level land outside road surface to be milled, until the milling Depth display value of Simulation of depth controller 1 stops to descend during for default milling depth value, then handle pavement milling machine forward milling get final product.This milling and plane operation method can first zero clearing before milling, and milling the degree of depth during milling will directly be presented on the analog controller, make things convenient for to a great extent operating personnel's operation.
As shown in Figure 6, when the milling of the first cutter elder generation road surface, the left side, when needing that then road surface, the right carried out the second cutter milling and plane operation, two wheels 6 then installing in the wheel installing rack 5 of frame 8 both sides be in respectively first dig mill face (road surface, the left side) and than this first dig the face that mills higher second dig that to mill face (road surface, the right) upper and the second plane is milled face dig and mill operation.At this moment, can obtain first first digs the difference that the face that mills and second digs the milling Depth display value of the Simulation of depth controller 1 that the difference in height A(that mills between the face can be by the left and right sides and obtains this difference in height A or directly obtain this difference in height A by measurement), then pavement milling machine is rested on the level land, to be in second digs the Simulation of depth controller 1 mill face one side and carries out zero clearing, be in simultaneously the negative value that the first milling Depth display value of digging the Simulation of depth controller 1 mill face one side is set to difference in height A and (A), so just finish adjustment before milling the second cutter.Like this, the wheel 6 with the left and right vehicle wheel both sides rest in respectively on the first milling face and the second milling face and with frame 8 and milling and planing drum 7 leveling (piston rod that is about to left side support oil cylinder 4 is adjusted height A downwards) after, when milling and planing drum 7 dropped on the second milling face, the show value of the Simulation of depth controller 1 of the right and left was 0.When on milling and planing drum 7 milling to the first milling faces, the show value of the Simulation of depth controller 1 on the right is A, and the show value of the Simulation of depth controller 1 on the left side also is A.Therefore, after the Simulation of depth controller 1 of the left and right sides is made above-mentioned adjustment, can carry out above-mentioned milling and plane operation, namely can by support oil cylinder 4 milling and planing drum 7 be descended milling road surface (the first milling face), until being, the milling Depth display value of two Simulation of depth controllers 1 of the left and right sides stops when presetting milling depth value (being A) descending, then handle forward milling of pavement milling machine, dig into the second milling facing cut parallel with the first milling face.Like this, comparatively simple and convenient when operation, can not make mistakes.When the milling multitool, detect and manual detection difference in height A and artificial adjustment according to the high accuracy of 1 pair of milling degree of depth of Simulation of depth controller, thereby obtain the high-flatness on the linking road surface of continuous two cutter millings.
Above-described milling Depth display and levelling device are particularly useful for small-sized pavement milling machine, and namely wheel type milling machine and milling and planing drum are arranged on the middle pavement milling machine of two rear wheels.Certainly, this milling Depth display and levelling device also can be used on milling and planing drum and usually are arranged in the large-scale pavement milling machine in the middle of the milling machine chassis.With respect to for the common small-sized pavement milling machine of scale, pavement milling machine of the present invention has more high accuracy and more intuitively operability.For the large-scale pavement milling machine that adopts the high electronic type levelling device of price, the milling Depth display in the pavement milling machine of the present invention and the price of levelling device are very cheap, and precision is higher equally.
Below describe by reference to the accompanying drawings preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in the above-mentioned embodiment; in technical conceive scope of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
Need to prove in addition, each concrete technical characterictic described in the above-mentioned specific embodiment in reconcilable situation, can make up by any suitable mode, for fear of unnecessary repetition, the present invention is to the no longer separately explanation of various possible combinations.
In addition, also can carry out any combination between the various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (10)
1. pavement milling machine, this pavement milling machine comprises support oil cylinder (4), wheel installing rack (5), frame (8) and be installed in the milling and planing drum (7) of this frame (8) below, described wheel installing rack (5) supports described frame (8) by described support oil cylinder (4), it is characterized in that, this pavement milling machine also comprises milling Depth display and levelling device, this milling Depth display and levelling device comprise Simulation of depth controller (1) and serving (2), one end of this serving (2) is wound in the described Simulation of depth controller (1), the other end is connected on the described wheel installing rack (5), described Simulation of depth controller (1) is installed on the described frame (8), to detect and to show the variable quantity of the extension elongation of described serving (2).
2. pavement milling machine according to claim 1, it is characterized in that, described Simulation of depth controller (1) comprises housing (13), be installed in the first axis of rotation (11) and the second axis of rotation (12) in this housing (13) and be located at this housing (13) outer pointer (14) and dial (15), described the first axis of rotation (11) is provided with the first drive (17), bull wheel (16) and back-moving spring (18), described the second axis of rotation (12) is provided with the second drive (19) that is in transmission connection with described the first drive (17), wherein, described serving (2) is wound on the described bull wheel (16), described back-moving spring (18) is used for when described bull wheel (16) rotates described the first axis of rotation (11) applied to reset screwing power, and described pointer (14) is installed on described the second axis of rotation (12) and goes up to follow rotation.
3. pavement milling machine according to claim 2 is characterized in that, described the first drive (17) and the second drive (19) are gear.
4. pavement milling machine according to claim 2 is characterized in that, described back-moving spring (18) is wind spring or torsion spring.
5. pavement milling machine according to claim 2, it is characterized in that, described Simulation of depth controller (1) also comprises the regulating part (20) be used to the initial pretightning force of regulating described back-moving spring (18), and this regulating part (20) is installed on outside the described housing (13) and is connected in the end of described back-moving spring (18).
6. pavement milling machine according to claim 2, it is characterized in that, described Simulation of depth controller (1) also comprises a plurality of bearings (21) that are installed in the described housing, and the two ends of described the first axis of rotation (11) and the second axis of rotation (12) are arranged in respectively in the described bearing (21).
7. pavement milling machine according to claim 2, it is characterized in that, described Simulation of depth controller (1) also comprises pointer adjusting nut (22), the end that described pointer (14) is installed on described the second axis of rotation (12) forms the end of thread, this end of thread is provided with stage portion, and described pointer adjusting nut (22) is bolted on the described end of thread and with described pointer (14) and is resisted against on the stage portion of the described end of thread.
8. pavement milling machine according to claim 1, it is characterized in that, this pavement milling machine also comprises the mounting bracket (9) that is located at described support oil cylinder (4) top, and described Simulation of depth controller (1) is set to be fixedly mounted on that described mounting bracket (9) is upper so that described serving (2) is tight and be connected in vertically described wheel installing rack (5).
9. the operational method of pavement milling machine, it is characterized in that, this pavement milling machine is the described pavement milling machine of any one in according to claim 1-8, be respectively arranged with described milling Depth display and levelling device on the wheel installing rack (5) of the frame of this pavement milling machine (8) both sides, this operational method comprises:
Before carrying out milling and plane operation, described Simulation of depth controller (1) is carried out zero clearing, namely by described support oil cylinder (4) described milling and planing drum (7) is dropped to and contact road surface to be milled, simultaneously with the milling Depth display value zero clearing of two described Simulation of depth controllers (1);
When carrying out milling and plane operation, by described support oil cylinder (4) described milling and planing drum (7) is descended, until the milling Depth display value of described Simulation of depth controller (1) is to stop when presetting the milling depth value descending, then handle the forward milling of described pavement milling machine.
10. the operational method of pavement milling machine according to claim 9, it is characterized in that, dig the face that mills and first dig higher second the digging and mill on the face and described the second plane is milled face dig when milling operation of the face that mills than this if two wheels (6) of installing in the wheel installing rack (5) of described frame (8) both sides are in respectively first, obtaining described first digs the face that mills and the second plane and mills difference in height A between the face, then described pavement milling machine is rested on the same level, to be in described second digs the described Simulation of depth controller (1) mill face one side and carries out zero clearing, being in simultaneously the negative value that the described first milling Depth display value of digging the described Simulation of depth controller (1) mill face one side is set to described difference in height A (A), digs described second at last and mills face and carry out described milling and plane operation.
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| CN201210357751.XA CN102864729B (en) | 2012-09-24 | 2012-09-24 | Pavement milling machine and operation method thereof |
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| CN201210357751.XA CN102864729B (en) | 2012-09-24 | 2012-09-24 | Pavement milling machine and operation method thereof |
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| CN201410293300.3A Division CN104074122A (en) | 2012-09-24 | 2012-09-24 | Depth simulation controller |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110258270A (en) * | 2019-06-19 | 2019-09-20 | 山推工程机械股份有限公司 | A kind of control method of milling machine, control system and milling machine |
| CN113202006A (en) * | 2021-04-16 | 2021-08-03 | 湖南三一路面机械有限公司 | Milling machine and support leg control method thereof |
| CN114150560A (en) * | 2021-12-03 | 2022-03-08 | 河南省高远公路养护技术有限公司 | High-precision full-width pavement milling equipment and milling method |
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| US4270801A (en) * | 1979-08-14 | 1981-06-02 | Cmi Corporation | Steering and cutter drum positioning in a paved roadway planing machine |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110258270A (en) * | 2019-06-19 | 2019-09-20 | 山推工程机械股份有限公司 | A kind of control method of milling machine, control system and milling machine |
| CN110258270B (en) * | 2019-06-19 | 2021-03-23 | 山推工程机械股份有限公司 | Control method and control system of milling machine and milling machine |
| CN113202006A (en) * | 2021-04-16 | 2021-08-03 | 湖南三一路面机械有限公司 | Milling machine and support leg control method thereof |
| CN114150560A (en) * | 2021-12-03 | 2022-03-08 | 河南省高远公路养护技术有限公司 | High-precision full-width pavement milling equipment and milling method |
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|---|---|
| CN102864729B (en) | 2015-04-15 |
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