CN113279443A - Slot milling machine and slotting method applied to slot milling machine - Google Patents
Slot milling machine and slotting method applied to slot milling machine Download PDFInfo
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- CN113279443A CN113279443A CN202110569814.7A CN202110569814A CN113279443A CN 113279443 A CN113279443 A CN 113279443A CN 202110569814 A CN202110569814 A CN 202110569814A CN 113279443 A CN113279443 A CN 113279443A
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- 238000003801 milling Methods 0.000 title claims abstract description 97
- 238000000034 method Methods 0.000 title claims description 11
- 230000007246 mechanism Effects 0.000 claims abstract description 113
- 229910000831 Steel Inorganic materials 0.000 claims description 15
- 239000010959 steel Substances 0.000 claims description 15
- 238000009434 installation Methods 0.000 claims description 5
- 239000011435 rock Substances 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 3
- 239000002689 soil Substances 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 230000009471 action Effects 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/08—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches with digging wheels turning round an axis
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
- E02F3/188—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with the axis being horizontal and transverse to the direction of travel
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
- E02F3/20—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels
- E02F3/205—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels with tools that only loosen the material, i.e. mill-type wheels with a pair of digging wheels, e.g. slotting machines
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/18—Dredgers; Soil-shifting machines mechanically-driven with digging wheels turning round an axis, e.g. bucket-type wheels
- E02F3/22—Component parts
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F5/00—Dredgers or soil-shifting machines for special purposes
- E02F5/02—Dredgers or soil-shifting machines for special purposes for digging trenches or ditches
- E02F5/14—Component parts for trench excavators, e.g. indicating devices travelling gear chassis, supports, skids
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Machine Tool Units (AREA)
Abstract
The invention discloses a slot milling machine, which comprises: the device comprises a tool rest body, a working mechanism, a pressurizing mechanism and a supporting mechanism; the working mechanism is positioned at the bottom of the slot milling machine; the pressurizing mechanism is simultaneously connected with the supporting mechanism and the working mechanism; the supporting mechanism is used for providing a supporting point for the pressurizing mechanism on the groove wall of the milling groove so that the pressurizing mechanism applies downward pressure to the working mechanism; the supporting mechanism comprises at least one pair of supporting plates and one or more first tensioning devices, wherein each pair of supporting plates are arranged in opposite sides; each first tensioning device is provided with at least one pair of relatively movable hinge points, each pair of hinge points is connected with at least one pair of support plates, and the first tensioning device is used for driving each pair of support plates to open or retract through each pair of relatively movable hinge points. The invention realizes good pressurization effect and further deviation rectification effect in the groove milling process.
Description
Technical Field
The invention relates to the technical field of slot milling operation, in particular to a slot milling machine and a slot forming method applied to the slot milling machine.
Background
The slot milling machine mainly comprises a cutter frame body, a working device and the like, wherein the working device is arranged below the cutter frame body. The slot milling machine generally adopts a steel wire rope suspension mode to perform slot milling operation, and applies pressure to a working device through the weight of a tool holder body. Because the steel wire rope can not press downwards, under the condition that the specification of the main machine is certain, the weight of the slot milling machine is limited, and sufficient pressure can not be applied to the working device.
When the slot milling machine works in a hard rock stratum, especially when the working device adopts a spherical gear milling wheel, the requirement on the downward pressure is very high, if the weight of the cutter frame body is simply increased, the main machine is very heavy, and the cost of the whole machine is greatly increased.
Disclosure of Invention
The invention aims to provide a slot milling machine, which can realize effective pressurization of a working device.
The technical scheme provided by the invention is as follows:
the invention discloses a slot milling machine, which comprises:
the device comprises a tool rest body, a working mechanism, a pressurizing mechanism and a supporting mechanism;
the working mechanism is positioned at the bottom of the slot milling machine;
the pressurizing mechanism is simultaneously connected with the supporting mechanism and the working mechanism;
the supporting mechanism is used for providing a supporting point for the pressurizing mechanism on the groove wall of the milling groove so that the pressurizing mechanism applies downward pressure to the working mechanism;
the supporting mechanism comprises at least one pair of supporting plates, one or more first tensioning devices,
each pair of the support plates is arranged in opposite sides;
each first tensioning device is provided with at least one pair of relatively movable hinge points, each pair of hinge points is connected with at least one pair of support plates, and the first tensioning device is used for driving each pair of support plates to expand or retract through each pair of relatively movable hinge points.
Preferably, the first tensioning means is connected to the support plate by a support arm;
one end of the supporting arm is connected with the hinge point of the first tensioning device, and the other end of the supporting arm is connected with the supporting plate.
Preferably, the moving direction of the first tensioning device is a vertical direction, and the supporting arm and the moving direction of the first tensioning device form an included angle.
Preferably, the included angle is 5 ° to 70 °.
Preferably, the first tensioning device is a supporting oil cylinder;
the hinge point is respectively arranged on one side of the cylinder body of the supporting oil cylinder and one side of the piston rod of the supporting oil cylinder, and the supporting arm is hinged to the hinge point.
Preferably, the support mechanism includes a pair of support plates;
the hinge point at one side of the cylinder body of the supporting oil cylinder is hinged with a pair of supporting arms, and the supporting arms are connected with the supporting plates one by one;
the hinge point at one side of the piston rod of the support oil cylinder is hinged with another pair of support arms which are connected with the pair of support plates one by one;
two pairs of the supporting arms are arranged in a V shape and back to back or in a pair.
Preferably, the supporting mechanism further comprises a limiting pull rod, two ends of the limiting pull rod are respectively hinged to the pair of supporting plates, and the limiting pull rod is used for limiting the opening range of the supporting arm on one side of the cylinder body of the supporting oil cylinder and one side of the piston rod.
Preferably, the pressing mechanism comprises a second tensioning device having two relatively movable hinge points, one of which is connected to the support mechanism and the other of which is connected to the operating mechanism or the holder block.
Preferably, the second tensioning device is a pressurizing oil cylinder, one side of the pressurizing oil cylinder is hinged to the supporting mechanism, and the other side of the pressurizing oil cylinder is hinged to the working mechanism.
Preferably, a hinge point of the second tensioning device is connected with the supporting mechanism through a pulley assembly;
the pulley assembly comprises a steel wire rope and a pulley, the pulley is installed on the tool rest body, one end of the steel wire rope is connected with one hinge point of the second tensioning device, and the steel wire rope spans across the pulley and then is connected with the supporting mechanism.
Preferably, at least one supporting block is hinged to one of the hinge points of the first tensioning device, and the supporting block is limited in a sliding groove on the tool holder body;
the extending direction of the sliding groove is consistent with the advancing direction of the working mechanism.
Preferably, a gap exists between the supporting block and the sliding groove, and the size of the gap is 1-100 mm.
Preferably, the support block is located at a central position between the pair of support plates.
Preferably, one of the hinge points of the first tensioning device is hinged with a pair of the supporting blocks, the supporting blocks are respectively arranged at two sides of the hinge point, the supporting blocks are connected through a rotating shaft, and the rotating shaft penetrates through the hinge point.
Preferably, the slot milling machine further comprises:
the deviation rectifying mechanism is arranged at the upper part of the tool rest body;
the deviation rectifying mechanism comprises at least one telescopic deviation rectifying plate, and the deviation rectifying plate and the supporting plate are arranged on the same side.
Preferably, the distance between the deviation correcting plate and the rotating shaft is greater than the distance between the rotating shaft and the working mechanism.
Preferably, the distance between the deviation correcting plate and the rotating shaft is 1-5 times of the distance between the rotating shaft and the working mechanism.
Preferably, the tool rest body comprises a mounting frame, the mounting frame is arranged close to the working mechanism, and the pressurizing mechanism and the supporting mechanism are integrated on the mounting frame.
The invention also provides a grooving method used by the groove milling machine, which comprises the following steps:
milling rock soil to form a slot hole by using the working device arranged at the bottom of the tool holder body;
the supporting mechanism is fixed on the wall of the tank through the supporting plate;
the pressurizing mechanism applies downward pressure to the working device through the support of the support plate to improve the milling capacity of the working device;
wherein the supporting mechanism comprises the first tensioning device which drives the supporting plate to expand or retract through a relatively movable hinge point.
Preferably, the support block is used for guiding the tool holder body, so that the deviation of the slot milling machine in the slot milling process is prevented.
Preferably, by means of the deviation correcting plate, when the slot milling machine deflects in the slot milling process, the deviation correcting plate pushes the cutter holder body to rotate around the supporting block, so that deviation correction is achieved.
The slot milling machine provided by the invention can bring at least one of the following beneficial effects:
1. most slot milling machines are suspended for operation, and the slot milling machines are difficult to directly pressurize working mechanisms (milling wheels). The invention adds a pressurizing mechanism and is also provided with a supporting mechanism, a supporting force point is searched for the pressurizing mechanism on the groove wall of the milling groove through the supporting mechanism, and the pressurizing mechanism can pressurize the working mechanism at the other end by the aid of the supporting of the force point, so that the design is very ingenious.
2. The first tensioning device drives the supporting arm to stretch and retract the supporting device, and when the stretching direction of the supporting arm forms an included angle with the movement direction of the first tensioning device, stable supporting can be achieved by using fewer oil cylinders, namely fewer forces due to force conversion. Preferably, the moving direction of the first tensioning device is vertical, and the cylinder side and the piston rod side of the first tensioning device are respectively hinged with a pair of supporting arms, and the two pairs of supporting arms are arranged in a V shape and are arranged back to back or in pairs, that is, the extending direction of each supporting arm forms an included angle with the moving direction of the first tensioning device, and the included angle can be selected to be 5-70 degrees, so that the power in the moving direction of the first tensioning device is decomposed into the extending direction of the supporting arms, and a larger force can be obtained, and the supporting plates can be pushed to open more conveniently.
3. The invention also provides a first tensioning device which is arranged in the middle of the tool rest, a supporting block hinged on the first tensioning device can be used for guiding the tool rest body on one hand and reducing possible deflection of the tool rest body in the groove milling process on the other hand, the supporting block can be used as a supporting point after the tool rest body deflects in the groove milling process, and the tool rest body is pushed to rotate around the supporting block through a deviation rectifying plate arranged on the upper part of the tool rest body for rectification. Because the distance between the deviation correcting plate and the supporting block is far larger than that between the milling wheel and the supporting block, preferably, the ratio of the distance is 1-5 times, the deviation correcting plate can push the tool rest body to rotate by small thrust, and the corresponding deviation correcting plate can be smaller.
4. On the other hand, the second tensioning device pressurizes the tool rest body through the steel wire rope and the pulley, so that the placing position of the pressurizing oil cylinder can be more flexible, for example, the second tensioning device can be placed inside the tool rest body, so that the second tensioning device can be effectively protected on the one hand, and on the other hand, the pressurizing assembly can be more compact and can be suitable for construction in a smaller space.
5. Because the supporting scheme of the invention has more degrees of freedom, the supporting arm at one side of the cylinder body of the first tensioning device (such as a supporting oil cylinder) can be opened firstly, and the supporting arm at one side of the piston rod can also be opened firstly.
Drawings
The above characteristics, technical features, advantages and modes of realisation of the slot milling machine, the slot milling machine applied thereto and the damping method will be further described in the following, in a clearly understandable manner, with reference to the accompanying drawings, illustrating preferred embodiments.
FIG. 1 is a schematic structural view of one embodiment of a slot milling machine;
FIG. 2 is a schematic view of one embodiment of the support mechanism configured in a retracted state;
FIG. 3 is a schematic view of one embodiment of a support mechanism configured in a support state;
FIG. 4 is a cross-sectional view B-B of FIG. 3;
FIG. 5 is a schematic view of an embodiment of the pressurizing mechanism completing one pressurizing stroke;
FIG. 6 is an exploded view of the support mechanism of FIG. 3;
the reference numbers illustrate:
1-a groove milling machine, 11-a tool rest body, 12-a deviation correcting plate, 13-a working mechanism, 14-a milling wheel, 15-an installation frame, 20-a pressurizing assembly, 21-a support plate, 22-a support oil cylinder, 23-a support oil cylinder body, 24-a support oil cylinder piston rod, 25-a support arm, 26-a pulley, 27-a steel wire rope, 30-a pressurizing oil cylinder, 31-a pressurizing oil cylinder body, 32-a pressurizing oil cylinder piston rod, 35-a support block and 50-a sliding groove.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will be made with reference to the accompanying drawings. It is obvious that the drawings in the following description are only some examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be derived from them without inventive effort.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure as a product.
As shown in fig. 1, the present invention provides a slot milling machine 1, which includes a tool holder body 11, two working devices 13, a pressurizing mechanism and a supporting mechanism, wherein the two working devices 13 constitute the working mechanism, and the pressurizing mechanism and the supporting mechanism together constitute a pressurizing assembly 20 in the figure. The working device 13 is arranged at the bottom of the slot milling machine, and the pressurizing mechanism is simultaneously connected with the supporting mechanism and the working device 13 or simultaneously connected with the supporting mechanism and the mounting frame integrated with the working device 13. The support mechanism includes a pair of support plates 21, and the pair of support plates 21 are disposed in pairs, respectively on both sides of the mounting frame 15. Referring to fig. 2 to 5, the supporting mechanism further includes two first tensioning devices, i.e., two supporting cylinders 22, each supporting cylinder 22 has a hinge point on one side of the cylinder body and one side of the piston rod, and the two hinge points are relatively movable, and each hinge point of the two first tensioning devices is simultaneously connected to a pair of supporting plates 21.
Referring to the figure, the supporting cylinders 22 are arranged along the extending direction of the tool rack 11 and located in the middle of the two supporting plates 21, each supporting cylinder 22 mainly includes a supporting cylinder body 23 and a supporting cylinder piston rod 24, each supporting cylinder body 23 is hinged with two supporting arms 25, each supporting cylinder piston rod 24 is hinged with two supporting arms 25, and the other ends of the 8 supporting arms 25 are hinged to the two supporting plates 21 respectively.
The moving direction of the supporting cylinder 22 is vertical, that is, the extending direction of the tool holder body, and may also be the advancing direction of the working device. The support arm 25 and the movement direction of the support cylinder 22 form an included angle, and the included angle ranges from 5 degrees to 70 degrees, and can be 20 degrees, 30 degrees, 45 degrees, 50 degrees, 60 degrees and the like. Because the flexible direction of support arm becomes the contained angle with the direction of motion of supporting the hydro-cylinder, because the conversion of power, when the power of hydro-cylinder was converted to the support arm on, power can the grow, just so can realize stable support with less hydro-cylinder, less power promptly.
The two supporting arms 25 on the hinge point on one side of each supporting oil cylinder 22 and the two supporting arms 25 on the hinge point on the other side are arranged in a V shape and back direction, and can also be arranged in a V shape and opposite direction. The expansion or retraction of the 4 supporting arms 25 and further the expansion or retraction of the supporting plate 21 are driven by the expansion and retraction of the supporting cylinder 22.
The 4 supporting arms 25 hinged with each supporting cylinder 22 are arranged in a V shape and back to back, the supporting plate 21 can be supported by one supporting cylinder 22, when the supporting angle of the two supporting arms 25 at the same hinged point is larger, the device can multiply the thrust of the supporting cylinder 22, and the thrust direction of the supporting cylinder 22 is converted from the direction along the tool rest to the direction vertical to the tool rest and is acted on the supporting plate 21. Therefore, the invention can realize the expansion and the retraction of the support plate 21 by fewer and smaller support oil cylinders 22.
Because the supporting scheme of the invention has more degrees of freedom, the supporting arm at one side of the cylinder body of the first tensioning device (such as a supporting oil cylinder) can be opened firstly, and the supporting arm at one side of the piston rod can also be opened firstly. One side of the cylinder body of each supporting oil cylinder is provided with a pair of supporting arms, one side of the piston rod is provided with a pair of supporting arms, the maximum distance between two hinge points of the limiting pull rod is smaller than the hinge point distance between each pair of supporting arms 25, and the limiting pull rod can ensure that the opening angle of the two supporting arms on the same hinge point is not more than 180 degrees when the supporting plate is opened to the maximum.
Referring to fig. 2-6, the pressurization mechanism includes 4 pressurization cylinders 30, 4 pulleys 26, and 4 wire ropes 27. The pulley 26 is fixed on the upper portion of the mounting frame 15, one end of the pressurizing cylinder 30 is hinged on the bottom of the mounting frame 15, the other end is hinged on one end of the steel cable 27 wound on the pulley 26, and the other end of the steel cable 27 is hinged on the supporting plate 21. The pressurizing oil cylinder 30 is located inside the mounting frame 15, so that the pressurizing oil cylinder 15 can be well protected on one hand, and the width of the whole pressurizing assembly 20 can be effectively reduced on the other hand, thereby meeting the construction of a narrower slotted hole. In this embodiment, the pressurizing cylinder functions as a tensioning device, and in other embodiments, the tensioning device can be of other structures capable of providing power. In the embodiment, the pressurizing oil cylinder is connected with the supporting plate and the mounting frame through the steel wire rope and the pulleys, and in other embodiments, the pressurizing oil cylinder can be directly connected with the supporting plate and the mounting frame for the sake of simpler structure. In this embodiment, one end of the pressurizing cylinder is connected to a mounting frame, where the mounting frame serves as a carrier for the pressurizing cylinder to apply pressure to the cutterhead, and in other embodiments, the pressurizing cylinder may also be connected to the cutterhead or other power carriers.
As shown in fig. 2, the support plate 21 is in a contracted state at this time. In operation, the supporting cylinder 22 is extended to push the supporting plate 21 to be supported on the wall of the tank as shown in fig. 3, and then the steel cable 27 is driven by the contraction of the pressurizing cylinder 30 to apply a downward pulling force to the pulley 26, thereby pressurizing the working device 13. Meanwhile, the side plate of the mounting frame 15 is provided with a long hole avoiding the supporting arm 25, so that the mounting frame 15 can be ensured not to interfere with the supporting arm 25 when sliding up and down.
Two supporting blocks 35 are hinged to the hinged point at the upper part of each supporting oil cylinder 22, the supporting blocks 35 are installed in the sliding grooves 50 in the middle of the installation frame 15, a small gap exists between each supporting block 35 and the corresponding sliding groove 50, and the size of the gap is 1-100mm, preferably 5-20 mm. And the extending direction of the sliding groove is consistent with the advancing direction of the working mechanism, namely the milling wheel, so that the movement direction of the supporting block is limited to be consistent with the advancing direction of the milling wheel, the supporting block plays a role in guiding, and the effect of partial deviation correction is realized. After the support plate is supported to the groove wall, the support block 35 is in a fixed state. With the retraction of the pressure cylinder 30, the slot milling machine 1 is fed downwards and the support blocks 35 can guide the milling device 1 well, so that the working device 13 is prevented as far as possible from deflecting during slot milling.
The support block 35 is located at a central position between the pair of support plates 21, and the pair of support blocks 35 are connected by a rotation shaft disposed through a hinge point of the upper portion of the support cylinder 22. On the other hand, two deviation-correcting plates 12 are respectively arranged at the front and the rear of the upper part of the tool rest body, and the deviation-correcting plates 12 can do telescopic action. The two deviation correcting plates 12 are arranged on the same side as the pair of support plates 21. When the slot milling action is deflected, the slot wall can be used as a support by extending out of the corresponding deviation-correcting plate 12, and the whole tool holder body is pushed to rotate by taking the supporting block 35 as a hinge point. When the deviation correcting plate is in an open state, the deviation correcting plate is supported by the groove wall of the groove milling machine, and the whole structure of the groove milling machine rotates by taking the rotating shaft connected with the pair of supporting blocks 35 as a center and rotates to a position parallel to the extending direction of the groove wall supported by the deviation correcting plate. The stretching of the deviation rectifying plate can be manually controlled, and the inclination of the tool rest body can be measured through the inclination angle sensor.
Since the distance of the deviation correction plate 12 from the support block 35 is much greater than the distance of the cutterhead 14 from the support block 35, the ratio of the distances is preferably 1-5 times. Therefore, a smaller thrust of the deviation correcting plate 12 can realize a larger lateral force to the milling cutter 14, so that the milling cutter 14 can effectively and quickly mill off redundant groove walls, and the cutter holder body can be easily adjusted to an ideal position.
The aforesaid mounting frame 15 is arranged close to the cutterhead of the working mechanism, and the pressurizing mechanism and the supporting mechanism are integrated on the mounting frame 15, so that the whole structure is more compact.
When the pressurizing oil cylinder 30 is completely retracted, a pressurizing propulsion process is completed, then the supporting oil cylinder 22 is retracted, the corresponding supporting plate 21 is retracted, the pressurizing oil cylinder 30 is extended, and the supporting plate 21 slides downwards under the action of self gravity until the pressurizing oil cylinder 30 is completely extended. Then the supporting cylinder 22 is extended to support the supporting plate 21 on the wall of the tank for the next pressurizing and propelling process.
The invention also provides a grooving method used by the groove milling machine, which comprises the following steps:
milling rock soil to form a slotted hole by using a working device arranged at the bottom of the tool rest body; the supporting mechanism is fixed on the wall of the tank through a supporting plate; the pressurizing mechanism applies downward pressure to the working device by means of the support of the supporting plate, so that the milling capacity of the working device is improved; the supporting mechanism comprises a first tensioning device which drives the supporting plate to open or retract through a relatively movable hinge point.
Most slot milling machines are suspended for operation, and the slot milling machines are difficult to directly pressurize working mechanisms (milling wheels). The invention adds a pressurizing mechanism and is also provided with a supporting mechanism, a supporting force point is searched for the pressurizing mechanism on the groove wall of the milling groove through the supporting mechanism, and the pressurizing mechanism can pressurize the working mechanism at the other end by the aid of the supporting of the force point, so that the design is very ingenious.
The invention preferably has the function of further correcting the deviation through the supporting block and the deviation correcting plate. On one hand, the supporting block which can only move along the vertical direction can be used for guiding the cutter holder body, and the deviation of the slot milling machine in the slot milling process is prevented. On the other hand, the deviation correcting plate can be used, when the slot milling machine is deviated in the slot milling process, the deviation correcting plate pushes the cutter holder body to rotate around the supporting block, and the deviation correcting is further realized, so that the slot milling operation with high vertical precision can be ensured.
The support oil cylinder drives the support arm to stretch out and draw back, stable support can be realized by using fewer oil cylinders, the support oil cylinder is positioned in the middle of the cutter frame, the support block hinged on the support oil cylinder can be used for guiding the cutter frame body and reducing possible deflection of the cutter frame body in the groove milling process on the one hand, and the support block can be used as a support point after the cutter frame body deflects in the groove milling process on the other hand, the pair of support blocks are positioned between the pair of support plates, the rotating shaft between the pair of support blocks is positioned in the middle position between the pair of support plates, and the extending direction of the rotating shaft is positioned on the middle axial plane between the pair of support plates. The correction is realized by pushing the tool holder body to rotate around the supporting block through the correcting plate positioned on the upper part of the tool holder body. The distance between the deviation correcting plate and the supporting block is far larger than that between the milling wheel and the supporting block. Therefore, the deviation-correcting plate can push the tool rest body to rotate by small thrust, and the corresponding deviation-correcting plate can be made smaller. On the other hand, the pressurizing oil cylinder pressurizes the tool rest body through the steel wire rope, the placing position of the pressurizing oil cylinder can be more flexible, for example, the pressurizing oil cylinder can be placed inside the tool rest body, so that the pressurizing oil cylinder can be effectively protected on one hand, and on the other hand, the pressurizing assembly can be more compact, and the pressurizing assembly can be suitable for construction in smaller space.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (21)
1. A slot milling machine, comprising:
the device comprises a tool rest body, a working mechanism, a pressurizing mechanism and a supporting mechanism;
the working mechanism is positioned at the bottom of the slot milling machine;
the pressurizing mechanism is simultaneously connected with the supporting mechanism and the working mechanism;
the supporting mechanism is used for providing a supporting point for the pressurizing mechanism on the groove wall of the milling groove so that the pressurizing mechanism applies downward pressure to the working mechanism;
the supporting mechanism comprises at least one pair of supporting plates, one or more first tensioning devices,
each pair of the support plates is arranged in opposite sides;
each first tensioning device is provided with at least one pair of relatively movable hinge points, each pair of hinge points is connected with at least one pair of support plates, and the first tensioning device is used for driving each pair of support plates to expand or retract through each pair of relatively movable hinge points.
2. A slot milling machine as set forth in claim 1, wherein:
the first tensioning device is connected with the supporting plate through a supporting arm;
one end of the supporting arm is connected with the hinge point of the first tensioning device, and the other end of the supporting arm is connected with the supporting plate.
3. A slot milling machine as set forth in claim 2, wherein:
the movement direction of the first tensioning device is the vertical direction, and the support arm and the movement direction of the first tensioning device form an included angle.
4. A slot milling machine as set forth in claim 3, wherein:
the included angle is 5-70 degrees.
5. A slot milling machine as set forth in claim 2,
the first tensioning device is a supporting oil cylinder;
the hinge point is respectively arranged on one side of the cylinder body of the supporting oil cylinder and one side of the piston rod of the supporting oil cylinder, and the supporting arm is hinged to the hinge point.
6. A slot milling machine as set forth in claim 5,
the support mechanism includes a pair of support plates;
the hinge point at one side of the cylinder body of the supporting oil cylinder is hinged with a pair of supporting arms, and the supporting arms are connected with the supporting plates one by one;
the hinge point at one side of the piston rod of the support oil cylinder is hinged with another pair of support arms which are connected with the pair of support plates one by one;
two pairs of the supporting arms are arranged in a V shape and back to back or in a pair.
7. A slot milling machine according to claim 5 or 6,
the supporting mechanism further comprises a limiting pull rod, wherein two ends of the limiting pull rod are hinged to the pair of supporting plates respectively and used for limiting the opening range of the supporting arm on one side of the cylinder body of the supporting oil cylinder and one side of the piston rod.
8. A slot milling machine as set forth in claim 1, wherein:
the pressurizing mechanism comprises a second tensioning device, the second tensioning device is provided with two hinge points capable of moving relatively, one hinge point is connected with the supporting mechanism, and the other hinge point is connected with the working mechanism or the tool rest body.
9. A slot milling machine as set forth in claim 8, wherein:
the second tensioning device is a pressurizing oil cylinder, one side of the pressurizing oil cylinder is hinged to the supporting mechanism, and the other side of the pressurizing oil cylinder is hinged to the working mechanism.
10. A slot milling machine as claimed in claim 8 or 9, wherein:
one hinge point of the second tensioning device is connected with the supporting mechanism through a pulley assembly;
the pulley assembly comprises a steel wire rope and a pulley, the pulley is installed on the tool rest body, one end of the steel wire rope is connected with one hinge point of the second tensioning device, and the steel wire rope spans across the pulley and then is connected with the supporting mechanism.
11. A slot milling machine as set forth in claim 1, wherein:
at least one supporting block is hinged to one of the hinge points of the first tensioning device, and the supporting block is limited in a sliding groove in the tool rest body;
the extending direction of the sliding groove is consistent with the advancing direction of the working mechanism.
12. A slot milling machine as set forth in claim 11, wherein:
a gap exists between the supporting block and the sliding groove, and the size of the gap is 1-100 mm.
13. A slot milling machine as set forth in claim 11, wherein:
the support block is located at a central position between the pair of support plates.
14. A slot milling machine as set forth in claim 13, wherein:
one of the hinge points of the first tensioning device is hinged with a pair of supporting blocks, the supporting blocks are respectively arranged on two sides of the hinge point and are connected through a rotating shaft, and the rotating shaft penetrates through the hinge point.
15. A slot milling machine as set forth in claim 14, further comprising:
the deviation rectifying mechanism is arranged at the upper part of the tool rest body;
the deviation rectifying mechanism comprises at least one telescopic deviation rectifying plate, and the deviation rectifying plate and the supporting plate are arranged on the same side.
16. A slot milling machine as set forth in claim 15, wherein:
the distance between the deviation correcting plate and the rotating shaft is larger than the distance between the rotating shaft and the working mechanism.
17. A slot milling machine as set forth in claim 16, wherein:
the distance between the deviation correcting plate and the rotating shaft is 1-5 times of the distance between the rotating shaft and the working mechanism.
18. A slot milling machine as set forth in claim 1, wherein:
the tool rest body comprises an installation frame, the installation frame is close to the working mechanism, and the pressurizing mechanism and the supporting mechanism are integrated on the installation frame.
19. A grooving process for a slot milling machine as claimed in any one of claims 1 to 18:
milling rock soil to form a slot hole by using the working device arranged at the bottom of the tool holder body;
the supporting mechanism is fixed on the wall of the tank through the supporting plate;
the pressurizing mechanism applies downward pressure to the working device through the support of the support plate to improve the milling capacity of the working device;
wherein the supporting mechanism comprises the first tensioning device which drives the supporting plate to expand or retract through a relatively movable hinge point.
20. A grooving method as claimed in claim 19, wherein:
the supporting block is used for guiding the cutter holder body, so that the deviation of the slot milling machine in the slot milling process is prevented.
21. A grooving method as claimed in claim 20, wherein:
by means of the deviation correcting plate, when the slot milling machine deflects in the slot milling process, the deviation correcting plate pushes the cutter holder body to rotate around the supporting block, so that deviation correction is achieved, and high-vertical-precision slot milling operation can be guaranteed.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110569814.7A CN113279443A (en) | 2021-05-25 | 2021-05-25 | Slot milling machine and slotting method applied to slot milling machine |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110569814.7A CN113279443A (en) | 2021-05-25 | 2021-05-25 | Slot milling machine and slotting method applied to slot milling machine |
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| US3182817A (en) * | 1963-04-09 | 1965-05-11 | Mid West Abrasive Co | Mechanism for rotating slabs and billets |
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