CN115247396B - Construction equipment is filled to high and cold district lime soil subgrade - Google Patents
Construction equipment is filled to high and cold district lime soil subgrade Download PDFInfo
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- CN115247396B CN115247396B CN202210833951.1A CN202210833951A CN115247396B CN 115247396 B CN115247396 B CN 115247396B CN 202210833951 A CN202210833951 A CN 202210833951A CN 115247396 B CN115247396 B CN 115247396B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C21/00—Apparatus or processes for surface soil stabilisation for road building or like purposes, e.g. mixing local aggregate with binder
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Abstract
The invention discloses construction equipment for lime soil roadbed filling in alpine regions, which comprises a housing, wherein a traction frame is arranged on one side of the housing, a mixing roller is arranged in the housing, mixing blades are circumferentially arranged on the mixing roller, and the mixing roller is driven by a driving motor fixed on the housing; one side of the housing, which is away from the traction frame, is provided with a trowelling mechanism, and the trowelling mechanism is used for flatly paving the lime soil after being mixed by the mixing roller on the foundation. According to the invention, the mixed lime soil flows out from the gap under the pressure action of the trowelling tail plate and the trowelling roller and is flatly paved on the roadbed, so that the mixed lime soil is flatly paved on the roadbed, the construction procedure of a trowelling machine is not needed, and the time of roadbed filling construction is saved; the ash soil after flattening by the flattening roller is relatively solid, and dust is not easy to form when encountering wind; the leveling roller and the leveling tail plate which are hinged can deflect outwards when needed, so that the inside of the housing is opened, and the operator can maintain the inside mixing roller and the inside mixing blade conveniently.
Description
Technical Field
The invention belongs to the technical field of roadbed filling construction, and particularly relates to lime soil roadbed filling construction equipment in alpine regions.
Background
In various engineering constructions, for example, road construction and building construction, it is necessary to mix the lime and soil. The lime soil is formed by mixing quicklime and common soil according to a certain proportion. Especially in alpine regions, the quality of lime-soil mixing directly influences the firmness of the foundation. There are generally two ways of mixing: one is a plant mix and the other is a road mix.
In the lime soil roadbed filling construction process, lime soil and soil are required to be mixed, a road surface mixer is equipment for directly mixing lime soil on the roadbed, after the road surface mixer is mixed, a flattening machine is required to be used for flattening, then a road roller is used for compacting the soil, and the whole roadbed filling process is longer; particularly, in areas with higher local soil humidity, the soil is higher in humidity or contains large impurities, so that the soil cannot be thoroughly mixed in the mixing process, and agglomerated soil or the large impurities can remain on the roadbed to form an interlayer, so that the subsequent lime soil cracking and pavement damage are caused.
Disclosure of Invention
The invention aims to provide lime soil roadbed filling construction equipment in alpine regions, which solves the problems that a road surface mixer needs to be leveled by a leveling machine after mixing, then a road roller is used for soil compaction, and the whole roadbed filling process is longer.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the lime soil subgrade filling construction equipment in the alpine region comprises a housing, wherein a traction frame is arranged on one side of the housing, a mixing roller is arranged in the housing, mixing blades are circumferentially arranged on the mixing roller, and the mixing roller is driven by a driving motor fixed on the housing;
one side of the housing, which is away from the traction frame, is provided with a trowelling mechanism, and the trowelling mechanism is used for flatly paving the lime soil after being mixed by the mixing roller on the foundation.
Preferably, the trowelling mechanism comprises a trowelling tail plate, a tail groove is formed in the housing, the trowelling tail plate is rotatably installed on the tail groove through a hinge shaft fixedly connected to the top, and the trowelling tail plate is arranged to be of the same arc-shaped structure as the tail of the housing;
the middle part in the outside of trowelling tail board sets up the mounting bracket, the articulated roller of flattening is being passed through to the mounting bracket both sides, the lime soil after the flattening roll flattening mix.
Preferably, the cage dredging mechanism is arranged on one side of the traction frame of the housing, the cage dredging mechanism comprises a cage dredging toothed plate, the end part of the cage dredging toothed plate is arranged to be an arc mechanism attached to the foundation, two sides of the cage dredging toothed plate are rotatably arranged on the housing through hinge shafts, and torsion springs are sleeved on the hinge shafts of the cage dredging toothed plate.
Preferably, sliding rails are arranged on two sides of the housing, an adsorption block is slidably arranged on the sliding rails, the adsorption block is connected with the trowelling tail plate through a steel wire rope, and a half magnetic ring is fixed at the position of the mixing roller corresponding to the adsorption block; when the half magnetic ring corresponds to the adsorption block, the magnetic attraction adsorption block moves linearly towards the mixing roller.
Preferably, a marking mechanism is arranged on one side of the sliding rail, which is away from the mixing roller, and comprises an extrusion cylinder which is fixedly arranged on the inner side wall of the housing, a piston is slidably arranged in the extrusion cylinder, and a rod part is fixedly arranged on one side of the piston, which faces the adsorption block;
one side of the extrusion cylinder, which is away from the adsorption block, is connected with an injection head, and marking pigment is filled in the extrusion cylinder.
Preferably, one side of the mixing roller, which is away from the driving motor, is provided with an installation cavity, one end of the installation cavity penetrating through the housing is provided with threads, the installation cavity is internally connected with a heater in a threaded manner, and the heater is suspended in the installation cavity; the heater is used for heating the mixing roller during rotation.
The invention has the technical effects and advantages that: compared with the prior art, the construction equipment for filling the lime soil subgrade in the alpine region has the following advantages:
1. according to the invention, the mixed lime soil flows out from the gap under the pressure action of the trowelling tail plate and the trowelling roller and is flatly paved on the roadbed, so that the mixed lime soil is flatly paved on the roadbed, the construction procedure of a trowelling machine is not needed, and the time of roadbed filling construction is saved; the ash soil after flattening by the flattening roller is relatively solid, and dust is not easy to form when encountering wind; the leveling roller and the leveling tail plate which are hinged can deflect outwards when needed, so that the inside of the housing is opened, and the operator can maintain the inside mixing roller and the inside mixing blade conveniently.
2. According to the invention, the front cage dredging mechanism on the housing can enable the tooth parts of the cage dredging toothed plate to be clung to the surface of the roadbed under the action of the torsion spring, and the cage dredging toothed plate is pushed by forward power to dredge large impurities mixed in lime and soil, so that the large impurities are selected out on the cage dredging toothed plate, and the condition that the mixing roller is blocked by large stones during subsequent lime and soil mixing is avoided, so that the mixing action is continuous; and because the traveling equipment is in front, the tail of the traveling equipment pulls the lime soil stirring machine, so that the fluffy lime soil is compacted by the wheels of the traveling equipment and then stirred by the stirring roller, and the pre-cage-thinning mechanism can pre-cage the compacted lime soil into a fluffy state, so that the stirring roller in the subsequent step can be used for fully stirring, and the stirring uniformity is improved.
3. According to the invention, soil blocks and large impurities contained in the mixed ash soil can not forcedly cross the gap, so that the soil blocks and the large impurities are forcedly reserved in the housing, synchronous screening of soil layers is realized, the rotation of the mixing roller is stopped when needed, the half magnetic ring is separated from the magnetic attraction state of the adsorption block, the trowelling tail plate is pulled manually to deflect outwards to be opened, and the reserved soil blocks and the large impurities can be taken out for treatment in a concentrated manner; in addition, if more soil blocks and large impurities are accumulated, the suction effect of the half magnetic ring is exceeded, at the moment, the trowelling tail plate is pushed to deflect outwards to be opened, and the soil blocks and the large impurities in the housing are intensively discharged, so that the state of the trowelling tail plate has adjustability, the effect of sieving out the soil blocks and the large impurities in the soil layer can be realized, the sieved out soil blocks and the large impurities can be concentrated as much as possible, the subsequent treatment is convenient, and once the soil blocks or the large impurities are overloaded, the magnetically connected trowelling tail plate can adaptively deflect to discharge the soil blocks and the large impurities, and the follow-up trowelling action is ensured.
Drawings
Fig. 1 is a schematic three-dimensional structure of an embodiment of the present invention.
Fig. 2 is a schematic top view of the internal structure of the embodiment of the present invention.
FIG. 3 is a schematic cross-sectional view of the structure at A-A in FIG. 2 according to an embodiment of the present invention.
Fig. 4 is a schematic diagram of the internal structure of the marking mechanism according to the embodiment of the present invention.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. The specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides construction equipment for filling lime soil roadbed in alpine region as shown in figures 1-4,
the lime soil subgrade filling construction equipment in the alpine region comprises a housing 1, wherein a traction frame 2 is arranged on one side of the housing 1, a mixing roller 3 is arranged in the housing 1, mixing blades 4 are circumferentially arranged on the mixing roller 3, and the mixing roller 3 is driven by a driving motor 5 fixed on the housing 1;
the cover shell 1 is provided with a trowelling mechanism 6 on one side away from the traction frame 2, and the trowelling mechanism 6 is used for flatly paving the lime soil mixed by the mixing roller 3 on a foundation. In the lime soil roadbed filling construction process, lime soil and soil are required to be mixed, a road surface mixer is equipment for directly mixing lime soil on the roadbed, a leveling machine is required to level after the road surface mixer is used for mixing, then a road roller is used for compacting the soil, the whole roadbed filling process is longer, and in order to save the working procedure of the roadbed filling process, a leveling mechanism 6 is additionally arranged on the road surface mixer, namely, the lime soil after mixing is leveled in the road surface mixing process, so that the leveling construction step of the leveling machine is saved.
Further, the trowelling mechanism 6 includes a trowelling tail plate 61, a tail groove 62 is formed in the housing 1, the trowelling tail plate 61 is rotatably mounted on the tail groove 62 through a hinge shaft fixedly connected to the top, and the trowelling tail plate 61 is set to have the same arc structure as the tail of the housing 1;
the middle part in the outside of the trowelling tail plate 61 is provided with a mounting frame 63, the two sides of the mounting frame 63 are hinged with a flattening roller 65 through a hinging rod 64, and the flattening roller 65 rolls and flattens the mixed dust. When the device is used, the traction frame 2 is arranged on a walking device, the driving motor 5 is started, the mixing roller 3 and the mixing blade 4 are driven to crush and mix lime soil and soil, the lime soil after mixing is thrown onto the leveling tail plate 61, the leveling tail plate 61 is arranged to be in an arc structure which is attached to the housing 1, so that the guiding effect on the lime soil after mixing is realized, the leveling tail plate 61 is provided with an angle limiting block, the leveling tail plate 61 is limited to swing inwards to be in a state of being flush with the housing 1, under the action of the gravity of the leveling roller 65 on the outer side, the gap between the leveling tail plate 61 and a road surface is in a relatively stable state, the lime soil after mixing flows out from the gap under the action of the pressure of the leveling tail plate 61 and the leveling roller 65 and is flatly paved on the road bed, the lime soil after mixing is flatly paved on the road bed through the leveling effect of the leveling roller 65, the construction procedure of a pushing machine is not needed, and the filling construction time is saved; the ash soil after flattening by the flattening roller 65 is relatively solid, and dust is not easy to form when encountering wind; while the hingeably mounted flattening roller 65 and the screeding tail plate 61 may be deflected outwardly when needed to open the interior of the housing 1 for convenient maintenance of the interior mixing roller 3 and mixing blade 4 by personnel.
Further, a cage dredging mechanism 7 is installed on one side of the traction frame 2 of the housing 1, the cage dredging mechanism 7 comprises a cage dredging toothed plate 71, the end part of the cage dredging toothed plate 71 is arranged to be an arc mechanism attached to a foundation, two sides of the cage dredging toothed plate 71 are rotatably installed on the housing 1 through hinge shafts, and torsion springs 72 are sleeved on the hinge shafts of the cage dredging toothed plate 71. The front cage dredging mechanism 7 on the housing 1 can enable the tooth parts of the cage dredging toothed plate 71 to be clung to the surface of a roadbed under the action of the torsion spring 72, and the cage dredging toothed plate 71 is driven by forward power to dredge large impurities mixed in lime and soil, so that the large impurities are selected out on the cage dredging toothed plate 71, the condition that the mixing roller 3 is blocked by large stones during the subsequent lime and soil mixing is avoided, and the mixing action is continuous; and because the traveling equipment is in front, the tail of the traveling equipment pulls the lime soil, so that the fluffy lime soil is compacted by the wheels of the traveling equipment and then is mixed by the mixing roller 3, and the pre-cage-thinning mechanism 7 can pre-cage the compacted lime soil into a fluffy state, so that the subsequent mixing roller 3 can be fully mixed, and the mixing uniformity is improved.
Further, sliding rails 8 are arranged on two sides of the housing 1, an adsorption block 9 is slidably mounted on the sliding rails 8, the adsorption block 9 is connected with the trowelling tail plate 61 through a steel wire rope 10, and a half magnetic ring 11 is fixed at a position of the mixing roller 3 corresponding to the adsorption block 9; when the half magnetic ring 11 corresponds to the adsorption block 9, the magnetic attraction adsorption block 9 moves linearly toward the stirring roller 3. Because the soil is high in humidity or contains large impurities, the soil cannot be thoroughly mixed in the mixing process, and the agglomerated soil or the large impurities are larger than the gap between the trowelling tail plate 61 and the roadbed, so the trowelling tail plate 61 is pushed to swing outwards until the soil is forced to cross the trowelling tail plate 61, the trowelling tail plate 61 returns to the state overlapped with the housing 1 under the action of the dead weight and the gravity of the trowelling roller 65, and the lime soil trowelling work is continued; in the process, agglomerated soil and large impurities can remain on the roadbed to form an interlayer, so that the subsequent lime soil is cracked and the pavement is damaged; therefore, in order to reduce the dust and soil interlayer caused by soil blocks and large impurities, the semi-magnetic ring 11 fixed on the mixing roller 3 is utilized, the rotation speed is higher when the mixing roller 3 rotates and works, the effect of approximately continuously adsorbing the adsorbing block 9 is formed, the adsorbing block 9 is separated from an initial state and is converted to a position close to the mixing roller 3, the adsorbing block 9 approximately continuously pulls the connected steel wire rope 10, so that the trowelling tail plate 61 is difficult to deflect outwards, the gap between the trowelling tail plate 61 and a roadbed is kept unchanged, the soil blocks and the large impurities contained in the mixed dust and soil cannot be forced to cross the gap, the soil blocks and the large impurities are forced to stay in the housing 1, synchronous screening of the soil layer is realized, the rotation of the mixing roller 3 is stopped when needed, the semi-magnetic ring 11 is separated from the magnetic attraction state of the adsorbing block 9, the trowelling tail plate 61 is pulled manually to deflect outwards, and the reserved soil blocks and the large impurities are taken out for centralized taking out treatment; in addition, if more soil blocks and large impurities are accumulated, the attraction effect of the half magnetic ring is exceeded, at the moment, the trowelling tail plate 61 is pushed to deflect outwards to be opened, and the soil blocks and the large impurities in the housing 1 are intensively discharged, so that the state of the trowelling tail plate 61 has adjustability, the effect of sieving out the soil blocks and the large impurities in the soil layer can be realized, the sieved out soil blocks and the large impurities can be concentrated as much as possible, the subsequent treatment is convenient, the soil blocks or the large impurities are overloaded, the magnetically connected trowelling tail plate 61 can deflect adaptively, and therefore the soil blocks and the large impurities are discharged, and the follow-up trowelling action is ensured.
Further, a marking mechanism 12 is arranged on one side of the sliding rail 8 away from the mixing roller 3, the marking mechanism 12 comprises an extrusion barrel 121, the extrusion barrel 121 is fixedly arranged on the inner side wall of the housing 1, a piston 122 is slidably arranged in the extrusion barrel 121, and a rod part 123 is fixedly arranged on one side of the piston 122 facing the adsorption block 9;
the side of the extrusion barrel 121 facing away from the adsorption block 9 is connected with an injection head 124, and the inside of the extrusion barrel 121 is filled with marking pigment. When the soil blocks and the large impurities exceed the load of the trowelling tail plate 61, the trowelling tail plate 61 is pushed to deflect outwards, the trowelling tail plate 61 pulls the adsorption block 9 to move towards the extrusion barrel 121 through the steel wire rope 10, so that the extrusion rod portion 123 and the piston 122 are extruded, the extrusion barrel 121 is forcedly extruded with the marking pigment after the internal volume is reduced to be sprayed out from the spraying head 124, and the marking pigment falls on the soil blocks and the large impurities, so that the soil blocks and the large impurities are enabled to fall on the foundation for the display purpose, and the quick discovery and the centralized treatment of subsequent staff are facilitated.
Further, a mounting cavity 13 is formed in one side, away from the driving motor 5, of the mixing roller 3, threads are formed in one end, penetrating through the housing 1, of the mounting cavity 13, a heater 14 is connected with the inner threads of the mounting cavity 13, and the heater 14 is suspended in the mounting cavity 13; the heater 14 is used for heating the mixing roller 3 during rotation. When the novel stirring roller is used, firstly, workers screw-mount the heater 14 in the mounting cavity 13, and the heater 14 is started when the stirring roller 3 rotates, so that the stirring roller 3 is heated, heat can be dispersed in a relatively closed housing 1 space by the heated stirring roller 3, so that the soil with high humidity is dried briefly, the humidity of the stirring soil is reduced on one hand, the stirring is more uniform, the occurrence of soil blocks and a gray soil interlayer is reduced, and the quality of gray soil is ensured.
In the description of the present invention, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", "left", "right", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of description of the present invention and to simplify the description, rather than to indicate or imply that the apparatus or element in question must have a specific azimuth configuration and operation, and thus should not be construed as limiting the present invention.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present invention, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described above, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present invention.
Claims (4)
1. The lime soil roadbed filling construction equipment in the alpine region comprises a housing (1), wherein a traction frame (2) is arranged on one side of the housing (1), a mixing roller (3) is arranged in the housing (1), mixing blades (4) are circumferentially arranged on the mixing roller (3), and the mixing roller (3) is driven by a driving motor (5) fixed on the housing (1); the method is characterized in that: a trowelling mechanism (6) is arranged on one side of the housing (1) away from the traction frame (2), and the trowelling mechanism (6) is used for flatly paving the lime soil mixed by the mixing roller (3) on a foundation;
the trowelling mechanism (6) comprises a trowelling tail plate (61), a tail groove (62) is formed in the housing (1), the trowelling tail plate (61) is rotatably installed on the tail groove (62) through a hinge shaft fixedly connected to the top, and the trowelling tail plate (61) is arranged to be of the same arc-shaped structure with the tail of the housing (1);
the middle of the outer side of the trowelling tail plate (61) is provided with a mounting frame (63), two sides of the mounting frame (63) are hinged with a flattening roller (65) through a hinging rod (64), and the flattening roller (65) rolls and flattens the mixed lime soil;
the two sides of the housing (1) are provided with sliding rails (8), the sliding rails (8) are provided with adsorption blocks (9) in a sliding manner, the adsorption blocks (9) are connected with the trowelling tail plate (61) through steel wires (10), and a half magnetic ring (11) is fixed at the position of the mixing roller (3) corresponding to the adsorption blocks (9); when the half magnetic ring (11) corresponds to the adsorption block (9), the magnetic attraction adsorption block (9) moves towards the mixing roller (3) in a straight line.
2. The construction equipment for lime soil subgrade filling in alpine regions according to claim 1, which is characterized in that: cage dredging mechanism (7) are installed to one side that housing (1) set up traction frame (2), cage dredging mechanism (7) are including dredging cage pinion rack (71), cage dredging pinion rack (71) tip sets up to the arc mechanism of laminating with the ground, the both sides of cage dredging pinion rack (71) are all installed on housing (1) through the hinge rotation, and are equipped with torsional spring (72) on the hinge of cage dredging pinion rack (71).
3. The construction equipment for lime soil subgrade filling in alpine regions according to claim 1, which is characterized in that: a marking mechanism (12) is arranged on one side of the sliding rail (8) away from the mixing roller (3), the marking mechanism (12) comprises an extrusion barrel (121), the extrusion barrel (121) is fixedly arranged on the inner side wall of the housing (1), a piston (122) is slidably arranged in the extrusion barrel (121), and a rod part (123) is fixedly arranged on one side of the piston (122) facing the adsorption block (9);
one side of the extrusion cylinder (121) deviating from the adsorption block (9) is connected with an injection head (124), and the inside of the extrusion cylinder (121) is filled with marking pigment.
4. The construction equipment for lime soil subgrade filling in alpine regions according to claim 3, which is characterized in that: a mounting cavity (13) is formed in one side, away from the driving motor (5), of the mixing roller (3), threads are formed in one end, penetrating through the housing (1), of the mounting cavity (13), a heater (14) is connected with the inner threads of the mounting cavity (13), and the heater (14) is suspended in the mounting cavity (13); the heater (14) is used for heating the mixing roller (3) during rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210833951.1A CN115247396B (en) | 2022-07-14 | 2022-07-14 | Construction equipment is filled to high and cold district lime soil subgrade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210833951.1A CN115247396B (en) | 2022-07-14 | 2022-07-14 | Construction equipment is filled to high and cold district lime soil subgrade |
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| Publication Number | Publication Date |
|---|---|
| CN115247396A CN115247396A (en) | 2022-10-28 |
| CN115247396B true CN115247396B (en) | 2023-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210833951.1A Active CN115247396B (en) | 2022-07-14 | 2022-07-14 | Construction equipment is filled to high and cold district lime soil subgrade |
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| Country | Link |
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| CN (1) | CN115247396B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5955915A (en) * | 1982-09-24 | 1984-03-31 | Tokyu Constr Co Ltd | Soil agitator |
| CN103282583A (en) * | 2010-11-09 | 2013-09-04 | 德国宝马格公司 | Rotor shroud for a milling apparatus |
| EP2857108A1 (en) * | 2013-10-07 | 2015-04-08 | Wirtgen GmbH | Device and method for machining soil or roadways |
| DE102016004197A1 (en) * | 2016-04-06 | 2017-10-12 | Bomag Gmbh | Method for operating a ground milling machine, ground milling machine with a handset and handset for a ground milling machine |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7854566B2 (en) * | 2006-12-01 | 2010-12-21 | Hall David R | Nozzles incorporated into a milling machine |
| US8177456B2 (en) * | 2007-12-21 | 2012-05-15 | Asphalt Zipper, Inc. | Pavement milling assembly |
-
2022
- 2022-07-14 CN CN202210833951.1A patent/CN115247396B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5955915A (en) * | 1982-09-24 | 1984-03-31 | Tokyu Constr Co Ltd | Soil agitator |
| CN103282583A (en) * | 2010-11-09 | 2013-09-04 | 德国宝马格公司 | Rotor shroud for a milling apparatus |
| EP2857108A1 (en) * | 2013-10-07 | 2015-04-08 | Wirtgen GmbH | Device and method for machining soil or roadways |
| DE102016004197A1 (en) * | 2016-04-06 | 2017-10-12 | Bomag Gmbh | Method for operating a ground milling machine, ground milling machine with a handset and handset for a ground milling machine |
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| CN115247396A (en) | 2022-10-28 |
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