CN112095700B - Double round slot milling machine cutter head device with pendulum sword unit - Google Patents
Double round slot milling machine cutter head device with pendulum sword unit Download PDFInfo
- Publication number
- CN112095700B CN112095700B CN202010987785.1A CN202010987785A CN112095700B CN 112095700 B CN112095700 B CN 112095700B CN 202010987785 A CN202010987785 A CN 202010987785A CN 112095700 B CN112095700 B CN 112095700B
- Authority
- CN
- China
- Prior art keywords
- milling
- wheel
- unit
- rotating
- rotating shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
The invention discloses a milling head device of a double-wheel slot milling machine with a swinging cutter unit, which comprises a connecting frame, wherein the connecting frame is connected with two mounting plates, milling wheels are respectively mounted on two sides of each mounting plate, a plurality of milling cutters are arranged at the milling wheels, the swinging cutter unit is further mounted at the milling wheels, guide rails matched with the swinging cutter unit are further mounted at the mounting plates, each guide rail comprises a sliding inclined surface and a guide inclined surface, and included angles between all intersecting lines formed by intersecting the plane of a milling wheel rotating shaft and the guide inclined surfaces and the rotating shaft of the milling wheel are all 70-85 degrees; the cutter swinging unit comprises a rotating unit arranged at the milling wheel, a swinging block fixedly connected with the rotating unit and a cutter swinging block fixedly connected with the rotating unit, and an included angle formed by a rotating shaft of the rotating unit and a rotating shaft of the milling wheel is 70-85 degrees; the swinging block can abut against the guide inclined plane of the guide track and the two sliding inclined planes, and a limiting block is arranged on the circumferential surface of the milling wheel. The milling head device can avoid blind areas during groove milling.
Description
Technical Field
The invention relates to the field of a groove washing machine, in particular to a milling head device of a double-wheel groove milling machine with a cutter swinging unit.
Background
The large mechanical engineering equipment is common large equipment in the foundation engineering construction process, such as a bulldozer, a pile driver, a slot milling machine and the like, so that the quality and the efficiency of engineering construction are improved. The double-wheel slot milling machine is large engineering equipment for milling slots, generally, milling wheels are arranged on two sides of a mounting plate, and milling cutters are mounted on the milling wheels and are used for milling the slots. However, the milling wheels of the double-wheel slot milling machine are arranged on two sides of the mounting plate, so that a blind area is easily formed between the two milling wheels when the slot is milled, the phenomenon of wall riding is formed, and the effect of the slot milling blind chess of the slot milling is poor.
Disclosure of Invention
The purpose of the invention is as follows: the invention aims to overcome the defects of the prior art and provides a milling head device of a double-wheel slot milling machine with a cutter swinging unit.
The technical scheme is as follows: a milling head device of a double-wheel slot milling machine with a cutter swinging unit comprises a connecting frame, wherein the connecting frame is connected with two mounting plates, milling wheels are mounted on two sides of each mounting plate, a plurality of milling cutters are arranged at the milling wheels, the milling wheels are driven by a milling wheel driving mechanism to rotate, the cutter swinging units are further mounted at the milling wheels, guide tracks matched with the cutter swinging units are further mounted at the mounting plates, each guide track comprises a sliding inclined plane positioned at two ends of each guide track and a guide inclined plane positioned between the two sliding inclined planes, and included angles between all intersecting lines formed by intersecting planes of rotating shafts of the milling wheels and the guide inclined planes and rotating shafts of the milling wheels are 70-85 degrees; the cutter swinging unit comprises a rotating unit arranged at the milling wheel, a swinging block fixedly connected with the rotating unit and a cutter swinging block fixedly connected with the rotating unit, and an included angle formed by a rotating shaft of the rotating unit and a rotating shaft of the milling wheel is 70-85 degrees; the swing block can abut against the guide slope and the two slide slopes of the guide rail; and when the swinging block passes through the guide rail, the swinging block is positioned between the guide rail and the limiting block.
Further, the rotating shaft of the rotating unit and the rotating shaft of the milling wheel intersect.
Furthermore, included angles between all intersecting lines formed by intersecting the plane passing through the milling wheel rotating shaft and the guide inclined plane and the rotating shaft of the milling wheel are equal.
Furthermore, included angles between all intersecting lines formed by intersecting the plane of the milling wheel rotating shaft and the guide inclined plane and the rotating shaft of the milling wheel are equal to included angles formed by the rotating shaft of the rotating unit and the rotating shaft of the milling wheel.
Furthermore, the included angles between all intersecting lines formed by intersecting the plane passing through the milling wheel rotating shaft and the guide inclined plane and the rotating shaft of the milling wheel are 77 degrees.
Furthermore, an included angle formed between the rotating shaft of the rotating unit and the rotating shaft of the milling wheel is 77 degrees.
Further, the included angle between the surface of the swinging block far away from the mounting plate and the surface of the swinging knife far away from the mounting plate is between 120 and 170 degrees.
Further, the distance from the farthest end of the swinging knife to the rotating shaft of the rotating unit is A, the distance from the farthest end of the swinging block to the rotating shaft of the rotating unit is B, wherein A is larger than B, and A is smaller than 2.5 times of B.
Further, a is greater than B, and a is less than 1.5 times B.
Furthermore, the rotating unit is a rotating shaft, an inserting sleeve is arranged at the milling wheel, a limiting bolt is arranged at the inserting sleeve, a groove is arranged at the rotating shaft, and the limiting bolt is inserted into the groove; or the rotating unit is a rotating sleeve, a fixed shaft inserted into the rotating sleeve is arranged at the milling wheel, a groove is formed in the fixed shaft, and a limiting bolt inserted into the groove is arranged at the rotating sleeve.
Furthermore, the rotating unit is a rotating shaft, an inserting sleeve is arranged at the milling wheel, a limiting bolt is arranged at the inserting sleeve, a groove is formed in the rotating shaft, the limiting bolt is inserted into the groove, an abutting plane is arranged at the end part of the rotating shaft, and an included angle formed by the abutting plane and the axis of the rotating shaft is 5-20 degrees; or the rotating unit is a rotating sleeve, a fixed shaft inserted into the rotating sleeve is arranged at the milling wheel, a groove is formed in the fixed shaft, a limiting bolt inserted into the groove is arranged at the rotating sleeve, an abutting plane is arranged at the end part of the rotating sleeve, and an included angle formed by the abutting plane and the axis of the rotating sleeve is 5-20 degrees.
The abutment plane is more favorable for sliding at the mounting plate when the pendulum knife unit is rotated to the position of the mounting plate. The abutting plane can slide along the mounting plate, so that the sliding of the swinging knife unit at the mounting plate is facilitated.
Further, both sides of the mounting plate are provided with guide rails and a swinging knife unit.
Furthermore, the guide rail is arc-shaped and is positioned at the bottom end of the mounting plate; the radian of the guide track is larger than 100 degrees and surrounds the milling wheel.
Further, the driving mechanism is a hydraulic motor.
Has the advantages that: the groove washing machine is provided with the swinging cutter unit, so that a blind area in groove milling can be avoided, and a better groove milling effect can be obtained.
Drawings
FIG. 1 is a first angular view of a milling head assembly;
FIG. 2 is a second angular view of the milling head assembly;
FIG. 3A is a first angle view of the knife swinging apparatus;
FIG. 3B is a schematic diagram of a second angle of the oscillating blade device;
FIG. 3C is a side view of the pendulum blade device;
FIG. 4A is a schematic view of a guide track;
fig. 4B is a schematic side view of the guide rail.
Detailed Description
Reference numerals are as follows: 1, a connecting frame; 2, mounting a plate; 3, milling a wheel; 3.1 milling cutter; 4a guide rail; 4.1 guide ramp; 4.2 sliding inclined plane; 5, a limiting block; 6, rotating the shaft; 6.1 swing block; 6.2 swinging the knife; 6.3, inserting a sleeve; 6.4 limiting bolts; 6.5 abutting the plane; 10.1 is a rotating shaft of the milling wheel; 10.2 is an intersection line formed by the intersection of the plane passing through the milling wheel rotating shaft and the guide inclined plane; beta is the angle between the intersection line and the axis of rotation of the cutterhead.
As shown in the figure: a milling head device of a double-wheel slot milling machine with a cutter swinging unit comprises a connecting frame 1, wherein the connecting frame 1 is connected with two mounting plates, milling wheels 3 are mounted on two sides of each mounting plate 2, a plurality of milling cutters 3.1 are arranged at the positions of the milling wheels 3, the milling wheels 3 are driven by a milling wheel driving mechanism to rotate, cutter swinging units are further mounted at the positions of the milling wheels 3, guide tracks matched with the cutter swinging units are further mounted at the positions of the mounting plates, each guide track comprises a sliding inclined plane 4.2 positioned at two ends of each guide track and a guide inclined plane 4.1 positioned between the two sliding inclined planes 4.2, and included angles between all intersecting lines formed by intersecting planes of rotating shafts (indicating rotating axes of the milling wheels) of the milling wheels 3 and the guide inclined planes and rotating shafts (indicating rotating axes of the milling wheels) of the milling wheels are all 70-85 degrees; the cutter swinging unit comprises a rotating unit arranged at the milling wheel, a swinging block 6.1 fixedly connected with the rotating unit and a swinging cutter 6.2 fixedly connected with the rotating unit, and an included angle formed by a rotating shaft of the rotating unit (referring to a rotating axis of the rotating unit) and the rotating shaft of the milling wheel is 70-85 degrees; the oscillating block 6.1 can abut against the guide ramp 4.1 and the two sliding ramps 4.2 of the guide track; and when the swinging block passes through the guide rail, the swinging block is positioned between the guide rail and the limiting block.
The rotating shaft of the rotating unit is intersected with the rotating shaft of the milling wheel 3. The included angles between all intersecting lines formed by intersecting the plane of the milling wheel rotating shaft and the guide inclined plane and the rotating shaft of the milling wheel 3 are equal. The included angles between all intersecting lines formed by the intersection of the plane of the milling wheel rotating shaft and the guide inclined plane 4.1 and the rotating shaft of the milling wheel 3 are equal to the included angles formed by the rotating shaft of the rotating unit and the rotating shaft of the milling wheel. Included angles between all intersecting lines formed by intersecting the plane of the milling wheel rotating shaft and the guide inclined plane and the rotating shaft of the milling wheel are 77 degrees; and an included angle formed by the rotating shaft of the rotating unit and the rotating shaft of the milling wheel is 77 degrees. The included angle between the surface of the swing block far away from the mounting plate and the surface of the swing knife far away from the mounting plate is between 120 and 170 degrees. The distance from the farthest end of the swinging knife to the rotating shaft of the rotating unit is A, the distance from the farthest end of the swinging block to the rotating shaft of the rotating unit is B, wherein A is larger than B, and A is smaller than 2.5 times of B; preferably, A is greater than B and A is less than 1.5 times B.
The milling wheel comprises a rotating unit, a milling wheel and a limiting bolt, wherein the rotating unit is a rotating shaft, an inserting sleeve is arranged at the milling wheel, the limiting bolt is arranged at the inserting sleeve, a groove is formed in the rotating shaft, the limiting bolt is inserted into the groove, an abutting plane is arranged at the end part of the rotating shaft, and an included angle formed by the abutting plane and the axis of the rotating shaft is 5-20 degrees.
Both sides of the mounting plate are provided with a guide rail and a swinging knife unit. The guide rail is arc-shaped and is positioned at the bottom end of the mounting plate; the radian of the guide track is larger than 100 degrees and surrounds the milling wheel.
The milling head device of the invention is shown in the figure, the driving mechanism drives two milling heads to mill the groove, and each milling head is provided with 2 milling wheels. The rotation unit of pendulum sword unit can rotate to the pendulum sword can rotate, as shown in the figure, when pendulum sword unit process guide unit, swing piece butt in proper order the slip inclined plane 4.2 of guide track 4, guide inclined plane 4.1 and the slip inclined plane 4.2 of the other end, when swing piece butt guide inclined plane 4.1, thereby make the pendulum sword to the direction skew of mounting panel, thereby when the milling flutes, can avoid the blind area of milling flutes. And when the pendulum sword was through the guide track, stopper and guide track were spacing to swing piece from both sides, and it is high not let to swing piece excessive climbing, makes swing piece between stopper and guide rail, and the clearance between swing piece and the stopper is smaller to play fine limiting displacement.
The utility model provides a rotation unit's pivot and guide inclined plane all have certain inclination, to the direction slope of mounting panel to make the pendulum sword incline to middle blind area more easily. Compared with the case that the axis of the rotating unit is perpendicular to the axis of the milling wheel, and the guide surface of the guide rail is perpendicular to the axis of the milling wheel, the design of the swinging knife can make the swinging knife shorter, so that the swinging knife unit can be more easily rotated to the guide rail under the guidance of the guide rail and can also be more easily rotated to a position without the guide rail from the guide rail.
In addition, the two sides of the mounting plate 2 are provided with the cutter swinging units, so that the groove milling effect on the position of the original blind area is better during groove milling. Certainly, in order to avoid putting up the two swinging knives 6.2 on two sides of the same mounting plate, the two swinging knife units on two sides of the same mounting plate can be installed in a staggered mode.
While the invention has been shown and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the scope of the invention as defined in the following claims.
Claims (11)
1. The milling head device of the double-wheel slot milling machine with the cutter swinging unit is characterized by comprising a connecting frame, wherein the connecting frame is connected with two mounting plates, milling wheels are mounted on two sides of each mounting plate, a plurality of milling cutters are arranged at the milling wheels, the milling wheels are driven by a milling wheel driving mechanism to rotate, the cutter swinging units are further mounted at the milling wheels, guide tracks matched with the cutter swinging units are further mounted at the mounting plates, each guide track comprises a sliding inclined plane positioned at two ends of each guide track and a guide inclined plane positioned between the two sliding inclined planes, and included angles between all intersecting lines formed by intersecting planes of rotating shafts of the milling wheels and the guide inclined planes and rotating shafts of the milling wheels are 70-85 degrees; the cutter swinging unit comprises a rotating unit arranged at the milling wheel, a swinging block fixedly connected with the rotating unit and a swinging cutter fixedly connected with the rotating unit, and an included angle formed by a rotating shaft of the rotating unit and a rotating shaft of the milling wheel is 70-85 degrees; the swing block can abut against the guide slope and the two slide slopes of the guide rail; the circumference of the milling wheel is provided with a limiting block, and when the swinging block passes through the guide track, the swinging block is positioned between the guide track and the limiting block; the rotating unit is a rotating shaft, an inserting sleeve is arranged at the milling wheel, a limiting bolt is arranged at the inserting sleeve, a groove is formed at the rotating shaft, and the limiting bolt is inserted into the groove; or the rotating unit is a rotating sleeve, a fixed shaft inserted into the rotating sleeve is arranged at the milling wheel, a groove is formed in the fixed shaft, and a limiting bolt inserted into the groove is arranged at the rotating sleeve.
2. The double-wheel slot milling machine head device with the pendulum cutter unit of claim 1, wherein the rotation axis of the rotating unit and the rotation axis of the milling wheel intersect.
3. The double-wheel slotter milling head device with the pendulum cutter unit of claim 1, wherein all intersecting lines formed by intersecting a plane passing through a milling wheel rotation axis and the guide slope are equal in angle to the rotation axis of the milling wheel.
4. The milling head device of a two-wheel slot milling machine with a pendulum cutter unit according to claim 1, wherein the included angles between all intersecting lines formed by the intersection of the plane of the milling wheel rotating shaft and the guide slope and the rotating shaft of the milling wheel are equal to the included angles formed by the rotating shaft of the rotating unit and the rotating shaft of the milling wheel.
5. The double-wheel slot milling machine head device with the pendulum cutter unit according to claim 1, wherein all intersecting lines formed by intersecting a plane of a milling wheel rotating shaft and the guide slope and an angle between the milling wheel rotating shaft and each intersecting line are 77 degrees; and an included angle formed by the rotating shaft of the rotating unit and the rotating shaft of the milling wheel is 77 degrees.
6. The milling head device of a double-wheel slot milling machine with a swinging cutter unit as claimed in claim 1, wherein the included angle between the surface of the swinging block far away from the mounting plate and the surface of the swinging cutter far away from the mounting plate is between 120 and 170 degrees.
7. The double-wheel slot milling machine head device with the swinging cutter unit as claimed in claim 1, wherein the distance from the farthest end of the swinging cutter to the rotating shaft of the rotating unit is A, the distance from the farthest end of the swinging block to the rotating shaft of the rotating unit is B, wherein A is larger than B, and A is smaller than 2.5 times of B.
8. The double-wheel slot milling head unit with the pendulum cutter unit of claim 7 wherein A is greater than B and A is less than 1.5 times B.
9. The double-wheel slot milling machine head device with the pendulum cutter unit as claimed in claim 1, wherein the end of the rotating shaft has an abutment plane, and the abutment plane and the axis of the rotating shaft form an included angle of between 5 and 20 degrees.
10. The double-wheel slot milling machine head device with the pendulum cutter unit as claimed in claim 1, wherein the end of the rotating sleeve has an abutment plane, and the angle formed by the abutment plane and the axis of the rotating sleeve is between 5 and 20 degrees.
11. The double-wheel slot milling machine head device with the pendulum cutter unit of claim 1, wherein the guide rail is arc-shaped and is located at the bottom end of the mounting plate; the radian of the guide track is larger than 100 degrees and surrounds the milling wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010987785.1A CN112095700B (en) | 2020-09-18 | 2020-09-18 | Double round slot milling machine cutter head device with pendulum sword unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010987785.1A CN112095700B (en) | 2020-09-18 | 2020-09-18 | Double round slot milling machine cutter head device with pendulum sword unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112095700A CN112095700A (en) | 2020-12-18 |
| CN112095700B true CN112095700B (en) | 2022-09-09 |
Family
ID=73759532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010987785.1A Active CN112095700B (en) | 2020-09-18 | 2020-09-18 | Double round slot milling machine cutter head device with pendulum sword unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112095700B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102022131341A1 (en) * | 2022-11-28 | 2024-05-29 | Liebherr-Werk Nenzing Gmbh | Diaphragm wall cutter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4022028A (en) * | 1971-12-23 | 1977-05-10 | Martin Charles F | Submarine pipe trenching apparatus |
| SU1469044A1 (en) * | 1987-07-07 | 1989-03-30 | Предприятие П/Я В-2632 | Milling cutter of trench- and pit-digging machine |
| DE10105475C1 (en) * | 2001-02-02 | 2002-05-29 | Thuemer Landschaftsbau Gmbh | Ditch digger, has digging wheels powered through a gearing, and can be hitched to a tractor with a protective upper shrouding and lower protective plate with height adjustment |
| EP2028319A1 (en) * | 2007-08-23 | 2009-02-25 | BAUER Maschinen GmbH | Milling device for earth working. |
| EP2597205A1 (en) * | 2011-11-23 | 2013-05-29 | BAUER Maschinen GmbH | Milling wheel assembly |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1009385C2 (en) * | 1998-06-12 | 1999-12-15 | Ihc Holland Nv | Cutting wheel with suction tube for a suction dredger. |
| DE10308539B3 (en) * | 2003-02-27 | 2004-06-03 | Bauer Maschinen Gmbh | Cutting device for cutting grooves in the ground comprises cutting elements arranged on the cutting wheels to remove soil using a rotary action |
| EP1580327B1 (en) * | 2004-03-26 | 2008-05-21 | BAUER Maschinen GmbH | Slotted wall milling cutter |
| ES2291788T3 (en) * | 2004-09-03 | 2008-03-01 | Bauer Maschinen Gmbh | MILLING WHEEL FOR A WALL SCREEN. |
| CN101285310B (en) * | 2008-06-05 | 2010-08-18 | 谢沃林 | Two-wheel slotter |
| CN103758169B (en) * | 2014-01-28 | 2016-02-24 | 徐工集团工程机械股份有限公司 | A kind of milling attachment of two-wheel flute milling machine and two-wheel flute milling machine |
| CN105625439B (en) * | 2014-10-28 | 2018-09-04 | 徐工集团工程机械股份有限公司 | The milling wheel and slotter of tooth are swung with radial type |
| EP3296468B1 (en) * | 2016-09-15 | 2019-11-06 | BAUER Maschinen GmbH | Method and trench cutter for creating a slit in the ground |
| CN106638743B (en) * | 2016-12-07 | 2019-03-19 | 天津市津勘岩土工程股份有限公司 | Two-wheel slotting attachment and two-wheel flute milling machine |
| CN106638624B (en) * | 2017-02-10 | 2019-06-21 | 徐工集团工程机械有限公司 | Milling wheel desludging device and slotter |
| DE102019101305A1 (en) * | 2019-01-18 | 2020-07-23 | Liebherr-Werk Nenzing Gmbh | Modular trench cutter |
| CN210587362U (en) * | 2019-09-23 | 2020-05-22 | 宁波三韩合金材料有限公司 | Multifunctional groove milling cutter |
-
2020
- 2020-09-18 CN CN202010987785.1A patent/CN112095700B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4022028A (en) * | 1971-12-23 | 1977-05-10 | Martin Charles F | Submarine pipe trenching apparatus |
| SU1469044A1 (en) * | 1987-07-07 | 1989-03-30 | Предприятие П/Я В-2632 | Milling cutter of trench- and pit-digging machine |
| DE10105475C1 (en) * | 2001-02-02 | 2002-05-29 | Thuemer Landschaftsbau Gmbh | Ditch digger, has digging wheels powered through a gearing, and can be hitched to a tractor with a protective upper shrouding and lower protective plate with height adjustment |
| EP2028319A1 (en) * | 2007-08-23 | 2009-02-25 | BAUER Maschinen GmbH | Milling device for earth working. |
| EP2597205A1 (en) * | 2011-11-23 | 2013-05-29 | BAUER Maschinen GmbH | Milling wheel assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112095700A (en) | 2020-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112095700B (en) | Double round slot milling machine cutter head device with pendulum sword unit | |
| US9416498B2 (en) | Method for profiling a laid rail and processing vehicle | |
| CN106285709B (en) | A kind of eccentric hobboing cutter translation cutterhead that section is cut for hard rock rectangle | |
| RU2267570C2 (en) | Method of and device for profiling rail rolling surface | |
| US20150330037A1 (en) | Method of grinding a two-lane roadway in two passes | |
| CN107876878A (en) | A kind of automatic rail saw | |
| US4583893A (en) | Reprofiling device for rails through continuous milling | |
| CN106863625A (en) | A kind of multi-directionally adjusts cutting machine | |
| CN204780491U (en) | Portable rail mills finish milling device of car | |
| CN103240464A (en) | Circular saw blade grinding machine | |
| CA1078417A (en) | Linear cutting rotary head continuous mining machine | |
| CN201511160U (en) | Milling machine for shelling and copying laminate | |
| CA1071883A (en) | Method of and apparatus for breaking brittle matter | |
| CN216551376U (en) | Movable rail milling vehicle set and rail milling vehicle | |
| CN210648845U (en) | Rolling cutting tool, tool assembly and beveling machine | |
| CN102049799B (en) | Cutting depth adjusting device for milling type cutter of an electric planer | |
| CN216515038U (en) | Asphalt pavement joint cutter | |
| CN218232998U (en) | Rail grinding device of subway maintenance operation | |
| JP4018128B1 (en) | Pavement surface groove cutting machine | |
| CN206010645U (en) | Blade tapping machine | |
| CN115815707A (en) | Drum-shaped helical gear machining device | |
| CN221271648U (en) | Cast-in-situ guard ridge chamfer cutting device | |
| CN108817503A (en) | A kind of automobile manufacture angle steel cutter device | |
| CN215758442U (en) | Angle-adjustable epoxy asphalt pavement joint cutter | |
| SU71698A1 (en) | Planer for the design of the side of the sleepers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |