CN114150561B - Milling machine tool changing control method and milling machine - Google Patents
Milling machine tool changing control method and milling machine Download PDFInfo
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- CN114150561B CN114150561B CN202111536772.3A CN202111536772A CN114150561B CN 114150561 B CN114150561 B CN 114150561B CN 202111536772 A CN202111536772 A CN 202111536772A CN 114150561 B CN114150561 B CN 114150561B
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- 238000003801 milling Methods 0.000 title claims abstract description 225
- 238000000034 method Methods 0.000 title claims abstract description 36
- 230000001276 controlling effect Effects 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000002441 reversible effect Effects 0.000 claims description 2
- 230000001681 protective effect Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 22
- 230000005540 biological transmission Effects 0.000 description 8
- 230000006378 damage Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002344 surface layer Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/08—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades
- E01C23/085—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for roughening or patterning; for removing the surface down to a predetermined depth high spots or material bonded to the surface, e.g. markings; for maintaining earth roads, clay courts or like surfaces by means of surface working tools, e.g. scarifiers, levelling blades using power-driven tools, e.g. vibratory tools
- E01C23/088—Rotary tools, e.g. milling drums
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Milling Processes (AREA)
- Road Repair (AREA)
Abstract
The invention relates to the technical field of milling machines, and particularly discloses a milling machine tool changing control method and a milling machine, wherein the milling machine comprises a milling cabin, the control assembly comprises a safety switch, and the safety switch is in a closed state when the milling cabin covers the milling drum; when the milling cabin exposes the milling drum, the safety switch is in an open state; the milling machine tool changing control method comprises the following steps: s100: the safety switch is in a closed state; s200: adjusting the distance between the milling drum and the ground; s300: the safety switch is in an open state; s400: the milling drum is rotated intermittently or slowly. The method solves the problems that the existing method for overhauling and replacing the milling cutter on the milling drum has low efficiency and has no protective measures, and the operator is easily injured due to improper operation.
Description
Technical Field
The invention relates to the technical field of milling machines, in particular to a milling machine tool changing control method and a milling machine.
Background
The milling machine is special mechanical equipment for highway and urban road maintenance operation, is mainly used for excavating and repairing surface layers of roads, town roads, airports, goods yards, parking lots and the like, can efficiently remove the surface layers of damaged pavements and waste pavements, and excavates pavement pits and grooves. Milling machines are classified into mechanical and hydraulic machines according to the driving modes of the milling drum. The milling machine with the hydraulic driving type milling drum has the advantages of simplified mechanism, simple operation, easy realization of overload protection, stable transmission, long service life and the like, and is widely applied to medium-sized and small-sized milling machines.
During long-term use of milling machines, the milling cutters on the milling drum are subject to varying degrees of wear, so that regular maintenance and replacement of the milling cutters on the milling drum is required. When overhauling and changing milling drum, need the driver to operate milling drum in the cockpit, and then make milling drum raise and set up with ground interval, repair personnel manual drive milling drum simultaneously, and then make milling drum rotate, overhauls the cutter on the milling drum.
The above-mentioned maintenance and change mode to milling cutter on the milling drum not only has the inefficiency problem, does not have safeguard measure moreover, because the improper operation extremely easily causes the injury to maintainer.
Disclosure of Invention
The invention aims at: the milling machine tool changing control method and the milling machine are provided, so that the problems that the existing method for overhauling and replacing the milling cutter on the milling drum in the related art is low in efficiency, has no protective measures and is extremely easy to damage overhaulers due to improper operation are solved.
The invention provides a milling machine tool changing control method, which is characterized in that lifting and rotation of a milling drum are controlled through a control assembly, the milling machine comprises a milling cabin, the control assembly comprises a safety switch, and the safety switch is in a closed state when the milling cabin covers the milling drum; when the milling cabin exposes the milling drum, the safety switch is in an open state;
the milling machine tool changing control method comprises the following steps:
s100: the safety switch is in a closed state;
s200: adjusting the distance between the milling drum and the ground;
s300: the safety switch is in an open state;
s400: the milling drum is rotated.
As a preferable technical scheme of the milling machine tool changing control method, the control assembly further comprises a first control piece and a second control piece;
the step S200 specifically includes: the first control member is acted upon and the milling drum is moved in a direction away from the ground,
or, the second control member is acted on and the milling drum is moved in a direction approaching the ground.
As a preferable technical scheme of the milling machine tool changing control method, the control assembly further comprises a first control piece and a second control piece;
the step S400 specifically includes:
s401: judging whether the acting time of the first control piece or the second control piece is smaller than a preset value a seconds or not;
s402: when the time of acting the first control piece is smaller than a preset value a seconds, stopping the milling drum after rotating forward by a preset value b degrees;
or when the time of acting the second control member is smaller than a preset value a seconds, the milling drum reversely rotates by a preset value b degrees and then stops.
As a preferable technical solution of the milling machine tool changing control method, step S400 further includes S403: when the time of acting the first control piece is longer than a preset value a seconds, the milling drum rotates intermittently in the forward direction and rotates for a preset value b DEG each time, and the milling drum rotates for a preset value c seconds each time;
or when the time of acting the second control member is greater than a preset value a seconds, the milling drum rotates reversely and intermittently for a preset value b DEG each time, and a preset value c seconds each time.
As a preferable technical solution of the milling machine tool changing control method, the milling machine further includes a power source, the power source provides power for lifting and rotating the milling drum, S500 is required before executing step S400, and step S500 includes:
s501: detecting the rotating speed of the power source;
s502: and when the rotating speed of the power source is smaller than the preset value d turns per minute, executing S400.
As a preferable technical solution of the milling machine tool changing control method, step S500 further includes S503: and when the rotating speed of the power source is larger than the preset value d turns per minute, the rotating speed of the power source is regulated, and S501 is executed.
The invention also comprises a milling machine, the milling machine comprises a power source, a lifting upright post, a milling drum and a control component, wherein the milling machine adopts the milling machine tool changing control method in any scheme, the power source drives the lifting upright post to stretch and retract, the milling drum is driven to move along the direction vertical to the ground through the lifting upright post, and the power source drives the milling drum to rotate; the control assembly comprises a first control piece, a second control piece, a safety switch and a controller, wherein the first control piece, the second control piece and the safety switch are connected with the controller and are located at the position, close to the milling drum, of the casing of the milling machine.
As a preferred embodiment of the milling machine, the milling machine further comprises an independent drive motor.
As a preferable technical scheme of the milling machine, when the safety switch is in the closed state, the first control piece and the second control piece are simultaneously acted, and the power source is switched from the starting state to the flameout state.
As a preferred technical solution of the milling machine, the first control element and the second control element are both buttons.
The beneficial effects of the invention are as follows:
the invention provides a milling machine tool changing control method and a milling machine, wherein the milling machine comprises a milling cabin, a control component comprises a safety switch, and the safety switch is in a closed state when the milling cabin covers the milling drum; when the milling cabin exposes the milling drum, the safety switch is in an open state; the milling machine tool changing control method comprises the following steps: s100: the safety switch is in a closed state; s200: adjusting the distance between the milling drum and the ground; s300: the safety switch is in an open state; s400: the milling drum is rotated intermittently or slowly. When the milling drum of the milling machine is replaced by a milling cutter, the milling drum is firstly covered by the milling cabin, so that the safety switch is in a closed state, and the height of the milling drum relative to the ground can only be controlled. When the relative height of the milling drum and the ground is adjusted to a proper position, the milling cabin exposes the milling drum, so that the safety switch is in an on state, at the moment, the milling drum can only conduct autorotation adjustment, whether milling cutters at different positions on the milling drum need to be replaced or maintained can be checked by adjusting the rotation of the milling drum, and if the milling cutters need to be replaced or maintained, the milling cutters which need to be replaced or maintained are rotated to an optimal maintenance position. The method solves the problems that the existing method for overhauling and replacing the milling cutter on the milling drum has low efficiency and has no protective measures, and the operator is easily injured due to improper operation.
Drawings
FIG. 1 is a schematic diagram of a milling machine according to an embodiment of the present invention;
FIG. 2 is a control logic diagram of a control assembly according to an embodiment of the present invention;
FIG. 3 is a flow chart of a method for controlling tool changing of a milling machine according to an embodiment of the present invention;
fig. 4 is a flowchart of a method for controlling engine stall of a milling machine according to an embodiment of the present invention.
In the figure:
1. lifting the upright post; 2. a first control member; 3. a second control member; 4. a safety switch; 5. milling the cabin; 6. a milling cutter; 7. milling drum.
Detailed Description
The following description of the embodiments of the present invention will be made apparent and fully in view of the accompanying drawings, in which some, but not all embodiments of the invention are shown. 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.
In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Wherein the terms "first location" and "second location" are two distinct locations and wherein the first feature is "above," "over" and "over" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicates that the first feature is level above the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.
In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
As shown in fig. 1, the present embodiment provides a milling machine, which includes a power source, a lifting column 1 and a milling drum 7, wherein the power source can drive the lifting column 1 to work, so that the milling drum 7 moves along a direction perpendicular to the ground, and the power source can also drive the milling drum 7 to rotate. The control assembly comprises a first control piece 2, a second control piece 3, a safety switch 4 and a controller, wherein the first control piece 2, the second control piece 3 and the safety switch 4 are all positioned at one end of a shell of the milling machine, which is close to the milling drum 7, and maintenance personnel can control the milling drum 7 to move along the direction vertical to the ground and rotate by themselves only on the ground.
In this embodiment, the first control element 2 is a first button, and the second control element 3 is a second button. In other embodiments, the first control member 2 and the second control member 3 may also be knobs or rockers, etc.
Optionally, the milling machine further comprises an independent driving motor, and the power source can use an engine of the milling machine as the power source in the process of changing the cutter of the milling machine, and can also use the independent driving motor to replace the engine of the milling machine as the power source.
For the specific structure of the milling cabin 5, optionally, the milling cabin 5 includes left and right side plates, front and rear side plates and an upper cover plate, and the left and right side plates, the front and rear side plates and the upper cover plate enclose a containing cavity with an opening facing the ground. The milling drum 7 is located in the receiving space, in which case the milling chamber 5 shields the milling drum 7 and the safety switch 4 is closed. The rear side plate and the left side plate and the right side plate can both slide relative to the milling machine shell along the direction perpendicular to the ground, when a maintainer operates the rear side plate to move upwards, the milling drum 7 is exposed in the sight of the maintainer in the direction of the rear side plate, the safety switch is in an on state, and meanwhile, the left side plate and the right side plate move in the direction away from the ground, so that the left side plate and the right side plate of the milling drum 7 are also exposed in the sight of the maintainer.
In the following description of the present embodiment, the first control member 2 is regarded as a first button, and the second control member 3 is regarded as a second button.
As shown in fig. 2 and 3, the present embodiment further provides a method for controlling tool changing of a milling machine, in which the milling machine in any of the above schemes is used to replace the milling tool 6 on the milling drum 7, the method for controlling tool changing of the milling machine includes the following steps:
s100: the safety switch 4 is put in the off state.
In this embodiment, when the maintenance personnel operates the milling cabin 5 and further the milling drum 7 is located in the milling cabin 5, the safety switch 4 is in the off state. This arrangement can prevent misoperation of maintenance personnel.
S200: the distance of the milling drum 7 relative to the ground is adjusted.
In this embodiment, the step S200 specifically includes: the first button is activated and the milling drum 7 is moved away from the ground, or the second button is activated and the milling drum 7 is moved towards the ground. By controlling the first button and the second button, the milling drum 7 can be adjusted to a proper height, thereby being beneficial to maintenance or replacement of the milling cutter 6 on the milling drum 7 by maintenance personnel.
S300: putting the safety switch 4 in an open state;
in this embodiment, the maintenance personnel can operate the rear side plate of the milling chamber 5, and the milling drum 7 is exposed to the line of sight of the maintenance personnel by moving the rear side plate away from the ground, and at this time, the safety switch 4 is turned from the off state to the on state. This arrangement can prevent the self-rotation operation of the milling drum 7 due to the misoperation of the maintenance personnel from being the lifting of the milling drum 7, thereby preventing the damage to the maintenance personnel.
S400: the milling drum 7 is rotated.
Specifically, step S400 specifically includes:
s401: judging whether the acting time of the first control member 2 or the second control member 3 is smaller than a preset value a seconds or not;
s402: when the time of acting the first control member 2 is smaller than a preset value a seconds, the milling drum 7 is stopped after rotating forward by a preset value b DEG;
or, when the time of actuation of the second control member 3 is less than the preset value a seconds, the milling drum 7 is stopped after counter-rotating by the preset value b °. In this embodiment, the preset value b ° is an included angle between two adjacent rows of milling cutters 6 and the rotation axis of the milling drum 7 along the circumferential direction of the milling drum 7. Therefore, each time the first button or the second button is pressed, the milling drum 7 rotates the position of the row of milling cutters 6 forward or backward, so that after the maintenance personnel finishes maintaining the row of milling cutters 6 on the milling drum 7 at the optimal maintenance position, only the first button or the second button is pressed, the adjacent row of milling cutters 6 on the milling drum 7 can be at the optimal maintenance position, and then the maintenance personnel waits for maintenance and replacement. In this process, the time for pressing the first button and the second button should be less than a preset value of a seconds.
Preferably, the value of the preset value a is 3 seconds, and in this embodiment the time required for the milling drum 7 to rotate the preset value b ° is 3 seconds. In other embodiments, the value of the preset value a may also be determined according to the rotation speed of the milling drum 7 and the angle between the adjacent two rows of milling cutters 6 and the milling drum 7.
Optionally, step S400 further includes S403: when the time for pressing the first button is greater than a preset value a seconds, the milling drum 7 intermittently rotates in the forward direction and rotates a preset value b DEG each time, and a preset value c seconds each time is intermittently performed; or, when the time for pressing the second button is greater than the preset value a seconds, the milling drum 7 is intermittently rotated in the reverse direction and each time rotated by the preset value b °, each time intermittently for the preset value c seconds. In this embodiment, when the maintenance personnel performs the preliminary detection or performs the re-detection after the maintenance is completed, the milling drum 7 needs to be intermittently rotated, so that the maintenance personnel can observe each row of milling cutters 6 on the milling drum 7. In this embodiment, the preset value b ° is therefore the angle between two adjacent rows of milling cutters 6 and the rotation axis of the milling drum 7 along the circumferential direction of the milling drum 7. The specific value of the preset value c is determined according to the number of milling cutters 6 per row. If the number of milling cutters 6 per row is 5, the time for the maintenance personnel to detect each milling cutter 6 is 1 second, and the value of the preset value c is 5 seconds. When the first button or the second button is pressed for a time longer than the preset value a seconds, the intermittent rotation of milling drum 7 starts to start. When the service person releases the first button or the second button, the milling drum 7 is stopped. Preferably, the value of the preset value a is 3 seconds.
S500 needs to be performed before S400 is performed. Optionally, the milling machine further comprises a power source, the power source providing power for lifting and rotating the milling drum, step S500 comprises:
s501: the rotational speed of the power source is detected.
S502: when the rotation speed of the power source is less than the preset value d revolutions per minute, S400 is performed.
S503: when the rotation speed of the power source is greater than the preset value d revolutions per minute, the step S501 is executed after the rotation speed of the power source is adjusted.
In this embodiment, the preset value d is preferably 1000 rpm, and when the rotation speed of the power source is less than 1000 rpm, and the power source is connected to the power transmission device, the phenomenon that the power transmission device is damaged due to tooth striking and the like of the transmission gear inside the power transmission device is avoided, so that damage to the power transmission device is reduced. Therefore, the rotation speed of the power source needs to be adjusted to 1000 revolutions per minute or less. In other embodiments, the value of the preset value d may also be adjusted according to the rated load of the relevant transmission components inside the power transmission device.
As shown in fig. 4, the embodiment also provides an engine flameout control method, which includes the milling machine in the above scheme. The engine is turned off by the milling machine of any of the above aspects. The method comprises the following steps:
a100: the safety switch is in an off state.
A200: the first control member 2 and the second control member 3 are pressed simultaneously and the pressing time is greater than a seconds.
A300: the engine is turned off.
In the method, when the engine of the milling machine is to be shut down by the first and second buttons, it is first ensured that the milling drum 7 is in the milling compartment 5, i.e. the safety switch 4 is in the off state.
It is to be understood that the above examples of the present invention are provided for clarity of illustration only and are not limiting of the embodiments of the present invention. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are desired to be protected by the following claims.
Claims (8)
1. The milling machine tool changing control method is characterized in that a control component is used for controlling lifting and rotation of a milling drum (7), the milling machine comprises a milling cabin (5), the control component comprises a safety switch (4), and when the milling cabin (5) covers the milling drum (7), the safety switch (4) is in a closed state; when the milling cabin (5) exposes the milling drum (7), the safety switch (4) is in an open state; the control assembly further comprises a first control member (2) and a second control member (3);
the milling machine tool changing control method comprises the following steps:
s100: -bringing the safety switch (4) in the closed state;
s200: acting on the first control element (2) or the second control element (3) to adjust the distance of the milling drum (7) relative to the ground;
s300: -bringing the safety switch (4) in the open state;
s400: only the milling drum (7) can be rotated;
s400 specifically comprises:
s401: judging whether the acting time of the first control piece (2) or the second control piece (3) is smaller than a preset value a seconds or not;
s402: when the time of acting the first control piece (2) is smaller than a preset value a seconds, the milling drum (7) is stopped after rotating forwards by a preset value b DEG;
or when the time of acting the second control member (3) is smaller than a preset value a seconds, the milling drum (7) reversely rotates for a preset value b DEG and then stops; the preset value b DEG is an included angle between two adjacent rows of milling cutters (6) and the rotating shaft of the milling drum (7) along the circumferential direction of the milling drum (7);
the milling machine further comprises a power source, the power source provides power for lifting and rotating the milling drum (7), the step S500 is required to be executed before the step S400 is executed, and the step S500 comprises:
s501: detecting the rotating speed of the power source;
s502: and when the rotating speed of the power source is smaller than the preset value d turns per minute, executing S400.
2. The method for controlling tool changing of milling machine according to claim 1, wherein,
the step S200 specifically includes: the first control element (2) is acted upon and the milling drum (7) is moved away from the ground,
or, the second control element (3) is acted on and the milling drum (7) is moved in a direction approaching the ground.
3. The milling machine tool changing control method according to claim 1, wherein step S400 further comprises S403: when the time of acting the first control piece (2) is greater than a preset value a seconds, the milling drum (7) intermittently rotates in the forward direction and rotates for a preset value b DEG each time, and a preset value c seconds each time;
or when the time of acting the second control member (3) is greater than a preset value a seconds, the milling drum (7) rotates intermittently in the reverse direction and rotates for a preset value b DEG each time, and a preset value c seconds each time.
4. The milling machine tool changing control method according to claim 1, wherein step S500 further comprises S503: and when the rotating speed of the power source is larger than the preset value d turns per minute, the rotating speed of the power source is regulated, and S501 is executed.
5. A milling machine, characterized in that a milling machine tool changing control method according to any one of claims 1-4 is adopted, the milling machine comprises a power source, a lifting upright (1), a milling drum (7) and a control assembly, the power source drives the lifting upright (1) to stretch and retract, the milling drum (7) is driven to move along a direction perpendicular to the ground by the lifting upright (1), and the power source drives the milling drum (7) to rotate; the control assembly comprises a first control piece (2), a second control piece (3), a safety switch (4) and a controller, wherein the first control piece (2), the second control piece (3) and the safety switch (4) are connected with the controller and are located at one end, close to the milling drum (7), of a casing of the milling machine.
6. The milling machine of claim 5 further comprising an independent drive motor.
7. Milling machine according to claim 5, characterized in that the safety switch (4) acts on both the first control element (2) and the second control element (3) when in the closed state, the power source being switched from an activated state to a deactivated state.
8. Milling machine according to claim 5, characterized in that the first control element (2) and the second control element (3) are both push buttons.
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| CN202111536772.3A CN114150561B (en) | 2021-12-15 | 2021-12-15 | Milling machine tool changing control method and milling machine |
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| CN202111536772.3A CN114150561B (en) | 2021-12-15 | 2021-12-15 | Milling machine tool changing control method and milling machine |
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