CN102864729B - Pavement milling machine and operating method thereof - Google Patents
Pavement milling machine and operating method thereof Download PDFInfo
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- CN102864729B CN102864729B CN201210357751.XA CN201210357751A CN102864729B CN 102864729 B CN102864729 B CN 102864729B CN 201210357751 A CN201210357751 A CN 201210357751A CN 102864729 B CN102864729 B CN 102864729B
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Abstract
The invention discloses a pavement milling machine and an operating method of the pavement milling machine. The pavement milling machine comprises a milling depth displaying and leveling device, support oil cylinders (4), wheel installing frames (5), a machine frame (8) and milling drums (7) arranged below the machine frame (8), wherein the wheel installing frames (5) are used for supporting the machine frame (8) through the support oil cylinders (4); the milling depth displaying and leveling device comprises a depth simulating controller (1) and coiled ropes (2), wherein the coiled ropes (2) are coiled in the depth simulating controller (1), and extends outside and fixedly connected to the wheel installing frames (5); and the depth simulating controller (1) is used for detecting and displaying the variable of the extending length of the coiled ropes (2), and is arranged on the machine frame (8) so as to move along with the lifting of the milling drums (7). With the adoption of the pavement milling machine, the mechanical milling depth displaying and leveling device can be manually adjusted or zeroed; and the pavement milling machine is conveniently operated, and specifically the pavement milling machine is convenient for an operator to mill through a plurality of cutters, therefore, higher milling precision can be obtained, and high smoothness can be ensured.
Description
Technical field
The present invention relates to a kind of pavement milling machine, particularly, relate to a kind of pavement milling machine and the milling and plane operation method thereof that accurately can show the milling degree of depth.
Background technology
As depicted in figs. 1 and 2, in the small-sized pavement milling machine that the common small size maintenance milling for town road is constructed, scale 10(circle amplifier section with a scale is generally adopted when milling and plane operation) be directly installed in the outer sleeve of milling machine rear support leg oil cylinder 4, when scale 10 presses certain installation requirement (namely in ground grading, when milling and planing drum 7 is down to ground uniform contact, the scale value of stretching out of scale 10 is 0) install after, what the milling degree of depth was directly reflected into scale 10 stretches out on scale, namely along with the intensification of milling, on scale 10, the scale of extension represents the actual milling degree of depth.
But this scale needs to install on request accurately when dispatching from the factory and is difficult to change afterwards, and considers job area and the general job requirement of small-sized pavement milling machine, the scale precision of this scale 10 is usually not high, can only reflect roughly the milling degree of depth.Scale 10 scale directly reflects that left and right wheels 6 that the milling degree of depth is also 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.But when actual milling and plane operation, left and right wheels 6 is not often in same plane construction, and as shown in Figure 2, the scale of the right scale 10 reflects the actual milling degree of depth, and the scale of left side scale 10 then can not reflect the actual milling degree of depth.Operating personnel are obviously difficult to intuitively with reference to graduated scale 10, be not easy to operation, and due to the precision of scale 10 scale not enough, although when milling the first cutter can in milling width milling smooth, but can there is error in the milling degree of depth calculating the second cutter by the reading of scale when milling the second cutter, cause being difficult to the second cutter milling road surface to be connected smooth with the first cutter milling road surface equally.
Summary of the invention
The object 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, handled easily when operation, and 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, wheel mount, frame and the milling and planing drum be arranged on below this frame, described wheel mount 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 described Simulation of depth controller, the other end is connected on described wheel mount, described Simulation of depth controller is installed in described frame, to detect and to show the variable quantity of extension elongation of described serving.
Preferably, described Simulation of depth controller comprises housing, be arranged on the first axis of rotation in this housing and the second axis of rotation and the pointer be located at outside this housing and dial, described first axis of rotation is provided with the first drive, bull wheel and back-moving spring, described second axis of rotation is provided with the second drive be in transmission connection with described first drive, wherein, described serving is wound on described bull wheel, described back-moving spring is used for applying reset when described bull wheel rotates to described first axis of rotation and screws power, described pointer is installed on described second axis of rotation to follow rotation.
Preferably, described 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 of the initial pretightning force for regulating described back-moving spring, and it is outer and be connected to the end of described back-moving spring that this regulating part is installed on described housing.
Preferably, described Simulation of depth controller also comprises the multiple bearings be arranged in described housing, and the two ends of described first axis of rotation and the second axis of rotation are arranged in described bearing respectively.
Preferably, described Simulation of depth controller also comprises pointer adjusting nut, the one end described second axis of rotation being provided with described pointer is formed as the end of thread, this end of thread is provided with stage portion, and described pointer adjusting nut to be bolted on the described end of thread and to be resisted against by described pointer in the stage portion of the described end of thread.
Preferably, this pavement milling machine also comprises the mounting bracket be located at above described support oil cylinder, and described Simulation of depth controller is set to be fixedly mounted on described mounting bracket to make described serving tight and to be connected to described wheel mount vertically.
In addition, the present invention also accordingly 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, the wheel mount of the frame both sides of this pavement milling machine is respectively arranged with described milling Depth display and levelling device, this operational method comprises: reset described Simulation of depth controller before carrying out milling and plane operation, namely by described support oil cylinder, described milling and planing drum is dropped to contact road surface to be milled, the milling Depth display value of two described Simulation of depth controllers is reset simultaneously; When carrying out milling and plane operation, by described support oil cylinder, described milling and planing drum being declined, until the milling Depth display value of described Simulation of depth controller is for stopping declining when presetting milling depth value, then handling the milling forward of described pavement milling machine.
Preferably, if two wheels installed in the wheel mount of described frame both sides be in respectively the first plane milling face and than this first plane milling face higher second plane milling face on and to described second plane milling face carry out plane milling operation time, first obtain described first plane milling face and second and dig difference in height A between milling face, then described pavement milling machine is rested in same level, the described Simulation of depth controller being in described second plane side, milling face is reset, the milling Depth display value of the described Simulation of depth controller being in described first plane side, milling face is set to the negative value of described difference in height A simultaneously, finally described milling and plane operation is carried out to described second plane milling face.
Pass through technique scheme, according on pavement milling machine of the present invention, milling Depth display and levelling device are installed, serving one end is connected to wheel mount, the other end is wound in Simulation of depth controller, frame knee-action together with milling and planing drum followed by Simulation of depth controller, thus reflects the milling degree of depth by the overhang changing value detecting serving.This mechanical device can manual adjustment or clearing, and handled easily, especially handled easily personnel carry out multitool milling and plane operation, and milling precision is higher, and planarization is good.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for manual, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the structural representation of small-sized pavement milling machine common in 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 the small-sized pavement milling machine shown in Fig. 1, and wherein, the both sides wheel of this pavement milling machine is in two planes of differing heights respectively;
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;
The structural representation that Fig. 5 is the pointer in the Simulation of depth controller shown in Fig. 4 and dial;
Fig. 6 is the structural representation of the pavement milling machine shown in Fig. 3, and wherein, the both sides wheel of this pavement milling machine is in two planes of differing heights respectively.
description of reference numerals
1 Simulation of depth controller 2 serving
3 drag hook 4 support oil cylinders
5 wheel mount 6 wheels
7 milling and planing drum 8 frames
9 mounting bracket 10 scales
11 first axis of rotation 12 second axis of rotation
13 housing 14 pointers
15 dial 16 bull wheels
17 first drive 18 back-moving springs
19 second drive 20 regulating parts
21 bearing 22 pointer adjusting nuts
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, when not doing contrary explanation, the noun of locality of use as " upper and lower " normally for direction shown in the drawings or for each parts mutual alignment relationship description word vertically, on vertical or gravity direction.
As shown in Figure 3, the invention provides a kind of pavement milling machine, the milling and planing drum 7 that this pavement milling machine comprises support oil cylinder 4, wheel mount 5, frame 8 and is arranged on below this frame 8, wheel mount 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 to be wound in Simulation of depth controller 1 and therefrom to stretch out and be fixedly attached on wheel mount 5, Simulation of depth controller 1 for detect and show serving 2 extension elongation variable quantity and be installed in frame 8 to follow the elevating movement of milling and planing drum 7.As total design, the invention is intended to avoid as shown in Figure 1 utilize nonadjustable signal to show the shortcoming of the milling degree of depth, enable pavement milling machine accurately reflect the milling degree of depth when milling and plane operation, 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, the flexibility of more high accuracy and installation, operation can be had for the milling Depth display of existing nonadjustable signal form, as following will descriptively, the real milling degree of depth can be reflected by Levelling operation, and non-mechanical scale value.And the planeness of more high-precision milling Depth display value when can improve multitool milling.Wherein, by one end of serving 2 is connected to wheel mount 5 by drag hook 3 as shown in Figure 3, thus be in fixed position relative, and the other end is wound in Simulation of depth controller 1.When the operating process of milling machine, milling and planing drum 7 moves up or down together with frame 8, and the vertical movement carrying out milling direction followed by Simulation of depth controller 1.During milling and planing drum 7 milling downwards, serving 2 bounces back in Simulation of depth controller 1, when milling and planing drum 7 upwards promotes, serving 2 pulls out from Simulation of depth controller 1, Simulation of depth controller 1 then can converse the milling degree of depth by the extension elongation detecting serving 2, thus this mechanical type milling Depth display and levelling device principle and install all comparatively simply, but compared to fixed scale, obviously can have more high accuracy, and installation and show value all can manual control or operations.
Wherein it will be understood by those skilled in the art that, Simulation of depth controller 1 for the extension elongation variable quantity detecting and show serving 2 can be designed to various electronic type product, such as also accurately detected the extension elongation of serving 2 by displacement sensor induction, then shown by display screen.This electronic type product often needs to carry out somewhat complex design in conjunction with control system, and development and production cost is higher, and the electronic type levelling device that large-scale pavement milling machine such as, adopt, 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 arranged on the first axis of rotation 11 in this housing 13 and the second axis of rotation 12 and the pointer 14 be located at outside this housing 13 and dial 15, first axis of rotation 11 is provided with the first drive 17, bull wheel 16 and back-moving spring 18, second axis of rotation 12 is provided with the second drive 19 be in transmission connection with the first drive 17, wherein serving 2 is wound on bull wheel 16, back-moving spring 18 screws power for applying reset when bull wheel 16 rotates to the first axis of rotation 11, 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: when being wound on the tensioning serving 2(such as steel cable on bull wheel 16) flexible with the change of the milling degree of depth under the tension of back-moving spring 18 time, meanwhile, first drive 17 coaxial with bull wheel 16 drives the second drive 19 to rotate with certain gearratio, and the pointer 14 coaxial with the second drive 19 swings along with the rotation of the second drive 19, now as shown in Figure 5, the scale value on the dial 15 that pointer 14 is indicated when swinging can accurately be converted into the milling degree of depth.
In the mechanical type structure of above-mentioned Simulation of depth controller, for making pointer 14 indicated value can accurately reflect the milling degree of depth, then need the operation between each mechanical part especially transmission precisely and accuracy high.Transmission wherein significantly between the rotation of flexible drive first axis of rotation 11 of serving 2 and the first and second axis of rotation.Therefore, structure is preferably between the first drive 11 and the second drive 12 simple and relative to transmission gear transmission modes more accurately such as belt wheel transmission.Wherein, between second drive 19 and the first drive 17, gear ratio is larger, namely when the number of teeth of the first drive 17 is constant, the number of teeth of the second drive 19 is more, milling depth value then on dial 15 shown by whole circle is larger, measurement category is larger, but scale relative accuracy on whole circle is little, and plant bulk direct ratio amplifies.If the milling depth value of required measurement is little, gear ratio then between the second drive 19 and the first drive 17 can reduce, namely when the number of teeth of the first drive 17 is constant, the number of teeth of the second drive 19 can reduce, on dial 15, the milling depth bounds of whole circle display is little, but precision improves, and device is also smaller and more exquisite.Therefore, can according to parameters such as the type of milling machine, the milling machine size especially milling degree of depth, select the suitable gear ratio between the second drive 19 and the first drive 17, while ensureing that there is enough measurement categorys, ensure the reasonable size of more excellent certainty of measurement and Simulation of depth controller.
The flexible synchronous rotary that will drive the first axis of rotation 11 of serving 2, then need to apply certain pretightning force by back-moving spring 18 to the first axis of rotation 11.This back-moving spring 18 can be wind spring or torsion spring etc.As shown in Figure 4, for easy for installation, adopt Mainspring type wind spring in present embodiment, wind spring should regulate 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 present embodiment also can comprise the regulating part 20 of the initial pretightning force for regulating back-moving spring 18, this regulating part 20 is installed on outside housing 13 and also can acts on back-moving spring 18, such as, be connected to the end of back-moving spring 18.When back-moving spring 18 is wind spring, regulating part 20 can be hook-like part and is hooked on the inner of wind spring, to screw wind spring by turn regulating part 20 or to make it to loosen, to regulate the initial pretightning force of wind spring.As shown in Figure 4, this regulating part 20 in present embodiment is formed as hook elements, and be arranged on housing 13 outer so that manual operation, this hook elements can be used to screw the wind spring in housing 13, to adjust the initial tension of serving 2 under 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 on the multiple bearings 21 in housing 13 respectively, and this bearing 21 can be arranged on the bearing mounting base in housing 13.
For installing pointer 14 and making it to follow the second axis of rotation 12 synchronous rotary, in the preferred mounting structure of one of the pointer 14 shown in Fig. 4, the one end this second axis of rotation 12 being provided with pointer 14 is formed as the end of thread, the end of thread is bolted with pointer adjusting nut 22, pointer 14 is set in (such as on escape) on this end of thread by its erection loop, and is pressed against in the stage portion of the end of thread by screwing of pointer adjusting nut 22.Like this when pointer adjusting nut 22 is tightened, pointer 14 follows the second axis of rotation 12 synchronous rotary, when needing the indicating positions of manual adjustment pointer 14, can unclamp pointer adjusting nut 22, stir pointer 14 with instruction will corresponding to indicating positions, then tighten pointer adjusting nut 22.
In use, serving 2 needs tight and vertically stretches for above-mentioned milling Depth display and levelling device, and therefore Simulation of depth controller 1 also should be arranged on directly over serving 2, namely directly over wheel mount 5.For convenience of the installation of Simulation of depth controller 1, this pavement milling machine also can comprise the mounting bracket 9 be located at above support oil cylinder 4, Simulation of depth controller 1 can be arranged on easily on this mounting bracket 9 and to regulate horizontal installation site, to make serving 2 tight and to be connected to wheel mount 5 vertically.Certainly in specific structure, Simulation of depth controller 1 also can be arranged on other structure member, and such as, on the outer sleeve of support oil cylinder 4, but this structure member at least synchronously should be able to move up and down with frame 8 and milling and planing drum 7.
In addition, the present invention is the corresponding operational method providing a kind of pavement milling machine adopting the present invention above-mentioned also, the wheel mount 5 of frame 8 both sides of this pavement milling machine is respectively arranged with above-mentioned milling Depth display and levelling device, this operational method comprises: reset Simulation of depth controller 1 before carrying out milling and plane operation, namely by support oil cylinder 4, milling and planing drum 7 is dropped to contact road surface to be milled, the milling Depth display value of two Simulation of depth controllers 1 is reset simultaneously, namely when the point of a knife uniform contact of milling and planing drum 7 is to ground, unclamp pointer adjusting nut 22, pointer 14 is allocated to 0 graduation position on dial 15, then tighten pointer adjusting nut 22.After completing cleanup step, can rise frame 8 and milling and planing drum 7, milling machine enters treats milling state.Now, if the left and right wheels of milling machine 6 is in the same plane carry out milling construction, then when carrying out milling and plane operation, milling and planing drum 7 can be declined by support oil cylinder 4 by the level land outside road surface to be milled, until the milling Depth display value of Simulation of depth controller 1 is for stopping declining when presetting milling depth value, then handle pavement milling machine milling forward.This milling and plane operation method, first can reset before milling, and during milling, institute's milling degree of depth will directly be presented on analog controller, facilitates the operation of operating personnel to a great extent.
As shown in Figure 6, the road surface, the left side when the first milling of the first cutter, when then needing to carry out the second cutter milling and plane operation to road surface, the right, then two wheels 6 installed in the wheel mount 5 of frame 8 both sides be in the first plane milling face (road surface, the left side) respectively and second plane milling face (the right road surface) higher than this first plane milling face upper and plane milling operation is carried out to the second milling face of digging.Now, can first obtain the first plane milling face and second dig the difference in height A(between milling face by the milling Depth display value of the Simulation of depth controller 1 of the left and right sides difference to obtain this difference in height A or directly by measuring to obtain this difference in height A), then pavement milling machine is rested on level land, the Simulation of depth controller 1 being in the second side, plane milling face is reset, the milling Depth display value of the Simulation of depth controller 1 being in the first side, plane milling face is set to the negative value (-A) of difference in height A simultaneously, so just completes the adjustment before milling second cutter.Like this, the wheel 6 of left and right vehicle wheel both sides to be rested in respectively on the first milling face and the second milling face and by frame 8 and milling and planing drum 7 leveling (piston rod by left side support oil cylinder 4 adjusts height A downwards) after, when milling and planing drum 7 drops on the second milling face, the show value of the Simulation of depth controller 1 of the right and left is 0.When on milling and planing drum 7 milling to the first milling face, 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 is also A.Therefore, after above-mentioned adjustment is made to the Simulation of depth controller 1 of the left and right sides, above-mentioned milling and plane operation can be carried out, namely by support oil cylinder 4, milling and planing drum 7 can be declined on milling road surface (the first milling face), until stop declining when the milling Depth display value of two of the left and right sides Simulation of depth controllers 1 is default milling depth value (i.e. A), then handle pavement milling machine milling forward, the second milling facing cut is dug into parallel with the first milling face.Like this, comparatively simple and convenient when operating, can not make mistakes.When milling multitool, according to Simulation of depth controller 1 pair of milling degree of depth high precision test and manual detection difference in height A and manually adjust, thus 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 pavement milling machine in the middle of two rear wheels.Certainly, this milling Depth display and levelling device also can be used in the large-scale pavement milling machine that milling and planing drum is arranged in the middle of milling machine chassis usually.For the common small-sized pavement milling machine of band scale, pavement milling machine of the present invention has more high accuracy and more intuitive operability.For adopting the large-scale pavement milling machine of the high electronic type levelling device of price, the milling Depth display in pavement milling machine of the present invention and the price of levelling device very cheap, and precision is higher equally.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive 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.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible combination.
In addition, also can be combined between various different 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 (8)
1. pavement milling machine, this pavement milling machine comprises support oil cylinder (4), wheel mount (5), frame (8) and the milling and planing drum (7) be arranged on below this frame (8), described wheel mount (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 described Simulation of depth controller (1), the other end is connected on described wheel mount (5), described Simulation of depth controller (1) is installed in described frame (8) to follow the elevating movement of described milling and planing drum (7), thus detect and show the variable quantity of extension elongation of described serving (2),
Described Simulation of depth controller (1) comprises housing (13), be arranged on 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 outward (14) and dial (15), described first axis of rotation (11) is provided with the first drive (17), bull wheel (16) and back-moving spring (18), described second axis of rotation (12) is provided with the second drive (19) be in transmission connection with described first drive (17), wherein, described serving (2) is wound on described bull wheel (16), described back-moving spring (18) screws power for applying reset when described bull wheel (16) rotates to described first axis of rotation (11), described pointer (14) is installed on described second axis of rotation (12) to follow rotation,
Described Simulation of depth controller (1) also comprises pointer adjusting nut (22), the one end described second axis of rotation (12) being provided with described pointer (14) is formed as the end of thread, this end of thread is provided with stage portion, and described pointer adjusting nut (22) to be bolted on the described end of thread and to be resisted against in the stage portion of the described end of thread by described pointer (14).
2. pavement milling machine according to claim 1, is characterized in that, described first drive (17) and the second drive (19) are gear.
3. pavement milling machine according to claim 1, is characterized in that, described back-moving spring (18) is wind spring or torsion spring.
4. pavement milling machine according to claim 1, it is characterized in that, described Simulation of depth controller (1) also comprises the regulating part (20) of the initial pretightning force for regulating described back-moving spring (18), and this regulating part (20) is installed on described housing (13) and be connected to the end of described back-moving spring (18) outward.
5. pavement milling machine according to claim 1, it is characterized in that, described Simulation of depth controller (1) also comprises the multiple bearings (21) be arranged in described housing, and the two ends of described first axis of rotation (11) and the second axis of rotation (12) are arranged in described bearing (21) respectively.
6. pavement milling machine according to claim 1, it is characterized in that, this pavement milling machine also comprises the mounting bracket (9) being located at described support oil cylinder (4) top, and described Simulation of depth controller (1) is set to be fixedly mounted on described mounting bracket (9) to make described serving (2) tight and to be connected to described wheel mount (5) vertically.
7. the operational method of pavement milling machine, it is characterized in that, this pavement milling machine is for according to the pavement milling machine in claim 1-6 described in any one, the wheel mount (5) of frame (8) both sides of this pavement milling machine is respectively arranged with described milling Depth display and levelling device, and this operational method comprises:
Before carrying out milling and plane operation, described Simulation of depth controller (1) is reset, namely described milling and planing drum (7) is dropped to contact road surface to be milled by described support oil cylinder (4), the milling Depth display value of two described Simulation of depth controllers (1) is reset simultaneously;
When carrying out milling and plane operation, by described support oil cylinder (4), described milling and planing drum (7) is declined, until the milling Depth display value of described Simulation of depth controller (1) is for stopping declining when presetting milling depth value, then handle the milling forward of described pavement milling machine.
8. the operational method of pavement milling machine according to claim 7, it is characterized in that, if when two wheels (6) of installing in the wheel mount (5) of described frame (8) both sides to be in respectively on the first plane milling face and the second plane milling face higher than this first plane milling face and to carry out plane milling operation to the described second milling face of digging, obtain described first plane milling face and second and dig difference in height A between milling face, then described pavement milling machine is rested in same level, the described Simulation of depth controller (1) being in described second plane side, milling face is reset, the milling Depth display value of the described Simulation of depth controller (1) being in described first plane side, milling face is set to the negative value (-A) of described difference in height A simultaneously, finally described milling and plane operation is carried out to described second plane milling face.
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| CN201210357751.XA CN102864729B (en) | 2012-09-24 | 2012-09-24 | Pavement milling machine and operating method thereof |
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| CN201210357751.XA CN102864729B (en) | 2012-09-24 | 2012-09-24 | Pavement milling machine and operating method thereof |
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| CN201410293300.3A Division CN104074122A (en) | 2012-09-24 | 2012-09-24 | Depth analog controller |
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| CN102864729B true CN102864729B (en) | 2015-04-15 |
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| 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 |
| CN113202006B (en) * | 2021-04-16 | 2023-01-13 | 湖南三一路面机械有限公司 | Milling machine and support leg control method thereof |
| CN114150560B (en) * | 2021-12-03 | 2023-02-03 | 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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