CN109837828B - Pavement cutting equipment and method for highway construction - Google Patents
Pavement cutting equipment and method for highway construction Download PDFInfo
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- CN109837828B CN109837828B CN201910175368.4A CN201910175368A CN109837828B CN 109837828 B CN109837828 B CN 109837828B CN 201910175368 A CN201910175368 A CN 201910175368A CN 109837828 B CN109837828 B CN 109837828B
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Abstract
The invention relates to a pavement cutting device and a method for highway construction, belonging to the technical field of pavement construction equipment, wherein the device comprises a frame body, a driving machine and a cutting blade driven by the driving machine are arranged on the frame body, a guide wheel is arranged at the front part of the frame body, the guide wheel is coplanar with the cutting blade, the guide wheel and the cutting blade are respectively supported by a guide shaft and a saw blade shaft which are movably arranged on the frame body in a corresponding way, a transmission shaft for connecting the cutting blade and the guide wheel is arranged on the frame body, and two ends of the transmission shaft are respectively connected with the guide shaft and the saw blade shaft in a corresponding; the support body is provided with a supporting rod, the supporting rod is provided with a strip-shaped hole, and the transmission shaft penetrates through the strip-shaped hole; a push rod is arranged in the bearing rod. The motor is adopted to drive the push rod to rotate, and the push rod is in threaded connection with the sliding sleeve, so that the rotating push rod can push the sliding sleeve and the transmission shaft penetrating through the sliding sleeve to one side close to the cutting blade, and further, the bevel gear transmission groups at the two ends of the transmission shaft are correspondingly connected with the cutting blade and the guide wheel respectively, and power transmission is realized.
Description
Technical Field
The invention relates to the technical field of pavement construction equipment, in particular to pavement cutting equipment and a pavement cutting method for highway construction.
Background
The method is characterized in that pits or sinks often appear on the road after the road is used for a long time, and the reasons for the pits or sinks include subgrade settlement and vehicle rolling, when the defects are repaired, the defective road sections need to be cleaned firstly, then new concrete or asphalt mixture is poured, so that the situation that the poured mixture is not flat in connection with the original road surfaces or is not firmly bonded with each other is avoided, if the defects are not thoroughly cleaned, more waste residues are left at the bottoms of the grooves of the road pits, the newly-poured structure is difficult to effectively combine with the plane at the bottoms of the grooves of the road pits, the poured layer is shallow, is easy to be pushed out by the vehicle rolling, is also easy to be fractured and crushed again, and cannot achieve the due repairing effect, therefore, people need equipment capable of thoroughly clearing the residual structures in the grooves of the road pits and improving the defect repairing quality.
A patent, named road cutting saw, was retrieved and filed under application No. 951911198, published 1999 12.1. which discloses a device for cutting cured and uncured (green) road surfaces containing concrete. The cutting apparatus can cut a longitudinal (straight) trough without operator guidance, and the apparatus also includes a soft contour wheel, which reduces, or in most cases eliminates, the possibility of leaving impressions in the freshly poured concrete. However, the invention has the following disadvantages: because the grooving needs to be performed by pre-pressing or pre-cutting marks by adopting the guide wheel, the device avoids the generation of marks and is not suitable for grooving the road surface.
Another patent for a road surface cutting machine, its application number is 2015102271498, and the open date is 2017 3 month 15 days, and it discloses a road surface cutting machine, including a turn to the support, the one end that turns to the support is connected with a water pump, and water pump and turn to support fixed connection, the water pump lower surface is connected with a cutting part, the cutting part articulates on the water pump, and is connected through the reinforcing plate between cutting part and the water pump, it turns to the support and is U type structure, it transversely installs a bearing bar near the opening part, the bearing bar is fixed in turning to support U type structure, it is connected with a controlling means to turn to the support other end, controlling means built-in motor, controlling means turns to the work of support through the control of a motor output shaft control that sets up on the motor, controlling means's lower surface vertical installation has a power rod. However, this solution still does not disclose the related guiding device and the features for cleaning the residual structure in the road pit, i.e. the following technical problems are still not solved: 1. guiding the cutting equipment by adopting a guide wheel; 2. and cleaning the residual part at the corner which is difficult to cut by the cutting equipment.
Disclosure of Invention
1. Problems to be solved
Aiming at the technical problem that a cutting saw blade is difficult to cut residual parts at corners in the prior art, the invention provides pavement cutting equipment and a pavement cutting method for highway construction.
2. Technical scheme
In order to solve the above problems, the present invention adopts the following technical solutions.
A road surface cutting device for highway construction comprises a frame body, wherein a driving machine and a cutting piece driven by the driving machine are installed on the frame body, a guide wheel is installed at the front part of the frame body, the guide wheel and the cutting piece are coplanar, the guide wheel and the cutting piece are respectively and correspondingly supported by a guide shaft and a saw blade shaft which are movably installed on the frame body, a transmission shaft for connecting the cutting piece and the guide wheel is arranged on the frame body, and two ends of the transmission shaft are respectively and correspondingly connected with the guide shaft and the saw blade shaft through bevel gear transmission sets; the rack body is provided with a supporting rod, the supporting rod is provided with a strip-shaped hole, and the transmission shaft penetrates through the strip-shaped hole; a push rod is arranged in the bearing rod, and a sliding sleeve is arranged on the part of the transmission shaft, which is positioned in the bearing rod; one side of the sliding sleeve is provided with a threaded hole, one end of the push rod penetrates into the sliding sleeve in a threaded fit mode, the other end of the push rod is driven to rotate by a motor, and the motor is fixedly installed on the bearing rod.
Preferably, the bevel gear transmission sets at the two ends of the transmission shaft are encapsulated by the shell, and each pair of bevel gear transmission sets are kept meshed continuously.
Preferably, a first circular groove is formed in the shaft end of the saw blade shaft, a protruding portion matched with the first groove is arranged at the input end of the bevel gear transmission set close to one side of the saw blade shaft, a spring groove is formed in the protruding portion, a spring is arranged in the spring groove, and balls are arranged at the end portion of the spring.
Preferably, a circular second groove is formed in the shaft end of the guide shaft, a rotating ball matched with the second groove is arranged at the output end of the bevel gear transmission group on one side close to the guide shaft, curved grooves extending along the warps or the wefts of the rotating ball are uniformly formed in the rotating ball, and a convex block in sliding fit with the curved grooves is arranged on the inner wall of the second groove.
Preferably, the spring groove is arranged along the radial direction of the protruding portion, an arc-shaped groove matched with the ball is arranged on the inner side wall of the first groove, and the arc-shaped groove extends to the opening of the first groove.
Preferably, the spring groove is arranged along the axial direction of the protruding portion, and an arc-shaped concave pit matched with the ball is arranged on the groove bottom surface of the first groove.
Preferably, a tension spring is arranged between the frame body and the transmission shaft.
Preferably, the spring is installed in the sleeve, a round hole is formed in one end of the sleeve, the ball extends out of a ball crown portion through the round hole, and the other end of the sleeve is turned outwards to clamp the sleeve in the spring groove.
Preferably, the driving machine is one or more of a fuel oil machine or a motor, and a belt is adopted between the driving machine and the cutting blade for transmission; the lower part of the frame body is provided with a roller, and one side of the frame body is provided with a pushing frame.
A use method of pavement cutting equipment for highway construction comprises the following steps:
s1, guiding: the motor drives the push rod to push the transmission shaft to one side of the cutting piece, so that the protruding part is clamped into the first groove, the ball is abutted into the first groove, the spring is compressed, the rotating saw blade shaft drives the transmission shaft to rotate through the ball, the bevel gear set drives the rotating ball to rotate, the rotating ball drives the guide shaft to rotate by the aid of a convex block and a curved groove sliding fit mechanism on the rotating ball, the guide wheel is driven to rotate, the road surface is cut, traces are cut, tracking cutting of the cutting piece is facilitated, and the road surface is cut into blocks;
s2, grooving: the driving machine drives the cutting blade to rotate in a belt transmission mode to cut the road surface;
s3, micro-modification: the cutting piece is circular, can not carry out thorough cutting to the road surface, can produce the leftover material of turning, changes the leading wheel for the cutting equipment that the diameter is less than the cutting piece diameter this moment and cuts the residual, and this cutting equipment' S drive principle goes on according to S1.
3. Advantageous effects
Compared with the prior art, the invention has the beneficial effects that:
(1) the motor is adopted to drive the push rod to rotate, the push rod is in threaded connection with the sliding sleeve, so that the rotating push rod can push the sliding sleeve and the transmission shaft penetrating through the sliding sleeve to one side close to the cutting blade, bevel gear transmission groups at two ends of the transmission shaft are correspondingly connected with the cutting blade and the guide wheel respectively, power transmission is completed, the guide wheel with a cutting structure (such as the cutting blade with a smaller size) is used for further cutting off corner residual structures which are difficult to reach by the cutting blade with a larger size, and thorough cleaning of the highway pit slot is realized.
(2) The guide wheel is rotated by utilizing the structure, traces can be cut out for the pre-advancing route of the cutting piece by utilizing the guide wheel, namely the direction is indicated for the cutting path of the cutting piece, and the construction efficiency is favorably improved.
(3) The invention uses the rotary guide wheel to process the foreign matters on the road surface in advance, improves the cutting effect of the cutting blade, prevents the cutting blade from directly contacting the foreign matters on the road to cause damage, and reduces the material consumption and use cost.
(4) The invention adopts the sliding fit of the convex block and the curved groove to realize the rotation of the rotating ball in the curved groove along the radial direction, namely, the relative swing of the rotating ball and the second groove is realized, when the convex part is matched with and separated from the first groove, the rotating ball is always matched with the second groove to keep the transmission state, reduce the vibration and impact when the transmission shaft is involved in a power transmission system, and also facilitate the realization of the purpose of controlling the power transmission process of the teasel root of the transmission shaft from one side by only adopting one set of driving equipment, simplify the use amount of the equipment and improve the transmission control stability.
(5) The invention adopts the buffer structure formed by the spring and the ball to reduce the power impact when the convex part is matched and intervened with the first groove, thereby protecting the safety of personnel and equipment, and also adopts the structure that the arc-shaped groove or the arc-shaped pit corresponding to the ball is arranged in the first groove in order to improve the friction force between the ball and the first groove and avoid the ball from completely eliminating the driving force between the ball and the first groove, thereby properly improving the driving force of the saw blade shaft to the convex part.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is an enlarged view of A in FIG. 1;
FIG. 4 is an enlarged view of B in FIG. 2;
FIG. 5 is a schematic view of the spring, balls, sleeve and spring groove of the present invention;
fig. 6 is a perspective view of a first groove of embodiment 1 of the present invention;
fig. 7 is a front view of the first groove of embodiment 2 of the present invention.
In the figure:
1. a frame body;
2. a driver;
3. cutting the slices; 301. a saw blade shaft; 302. a first groove; 303. an arc-shaped slot; 304. an arc-shaped pit;
4. a guide wheel; 401. a guide shaft; 402. a second groove; 403. a bump;
5. a drive shaft;
6a, an input end bevel gear transmission group; 6b, an output end bevel gear transmission group; 601. a projection; 602. a spring groove; 603. a spring; 604. a sleeve; 605. a circular hole; 611. rotating the ball; 612. bending a groove;
7. a support rod; 701. a strip-shaped hole; 702. a push rod;
8. tensioning the spring;
9. a ball bearing;
10. a pushing frame.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further explained below.
Example 1
As shown in fig. 1 to 6, a road surface cutting device for highway construction comprises a frame body 1, wherein a driving machine 2 and a cutting blade 3 driven by the driving machine 2 are installed on the frame body 1, a guide wheel 4 is installed at the front part of the frame body 1, the guide wheel 4 is coplanar with the cutting blade 3, the guide wheel 4 and the cutting blade 3 are respectively and correspondingly supported by a guide shaft 401 and a saw blade shaft 301 which are movably installed on the frame body 1, a transmission shaft 5 for connecting the cutting blade 3 and the guide wheel 4 is arranged on the frame body 1, a tensioning spring 8 is arranged between the frame body 1 and the transmission shaft 5, one end of the transmission shaft 5 close to the guide wheel 4 is always connected with a mechanism for driving the guide shaft 401 by using the tensioning spring 8, the purpose that the power transmission process of the transmission shaft can be controlled from one side by only one set of driving device is realized, the usage amount of; two ends of the transmission shaft 5 are correspondingly connected with the guide shaft 401 and the saw blade shaft 301 through the input end bevel gear transmission group 6a and the output end bevel gear transmission group 6b respectively, power transmission is achieved, the guide wheel 4 with the cutting structure (for example, the cutting blade with smaller size is used as the guide wheel 4) is used for further cutting off the corner residual structure of the road defect position which is difficult to be touched by the cutting blade 3 with larger size, thorough cleaning of the road pit slot is achieved, the mixture which is poured newly is conveniently and compactly matched in the pit slot, and the repairing effect is guaranteed to be firm and durable.
In order to realize controllable power transmission between the cutting blade 3 and the guide wheel 4, in this embodiment, a support rod 7 is arranged on the frame body 1, a strip-shaped hole 701 is arranged on the support rod 7, the transmission shaft 5 penetrates through the strip-shaped hole 701, a push rod 702 is arranged inside the support rod 7, and a sliding sleeve is arranged on a part of the transmission shaft 5, which is located in the support rod 7; one side of sliding sleeve is equipped with the screw hole, the one end of push rod 702 adopts screw-thread fit's mode to penetrate in the sliding sleeve, and the other end of push rod 702 is rotated by motor drive, motor fixed mounting is on bearing rod 7, and during the use, because push rod 702 and sliding sleeve (not shown in the figure) threaded connection, consequently pivoted push rod 702 can push sliding sleeve and the transmission shaft 5 that runs through wherein to one side near cutting piece 3, realizes that the bevel gear transmission group 6a and 6b at transmission shaft 5 both ends correspond respectively and are connected with cutting piece 4 and leading wheel 4, otherwise, then cuts off the connection between transmission shaft 5 and saw bit axle 301, realizes the controllable transmission of power.
In order to avoid the power separation between the bevel gear transmission sets 6a and 6b, the bevel gear transmission sets 6a and 6b are only used as mechanisms for adjusting the power transmission direction, and the power breakpoint positions of the whole transmission system are fixed and stable.
The shaft end of the saw blade shaft 301 is provided with a circular first groove 302, the input end of the bevel gear transmission set 6a close to one side of the saw blade shaft 301 is provided with a convex part 601 matched with the first groove 302, the convex part 601 is provided with a spring groove 602, the spring groove 602 is internally provided with a spring 603, the end part of the spring 603 is provided with a ball 9, the spring groove 602 is arranged along the radial direction of the convex part 601, the inner side wall of the first groove 302 is provided with an arc-shaped groove 303 matched with the ball 9, the arc-shaped groove 303 extends to the opening of the first groove 302, therefore, the embodiment adopts a buffer structure formed by the spring 603 and the ball 9, reduces the power impact when the convex part 601 and the first groove 302 are mutually intervened, protects the safety of personnel and equipment, and the arrangement of the arc-shaped groove 303 corresponding to the ball 9 in the first groove 302 improves the friction force between the ball 9 and the first groove 302, the ball 9 is prevented from completely eliminating the driving force between the two, and the driving force of the saw blade shaft 301 to the convex part 601 is properly improved.
Further, in order to avoid the spring 603 ejecting the ball 9, in this embodiment, a sleeve 604 is movably installed in the spring groove 602, the spring 603 is installed in the sleeve 604, one end of the sleeve 604 is provided with a circular hole 605, the ball 9 extends out of a spherical crown portion through the circular hole 605 for being matched with the arc-shaped groove 303, the other end of the sleeve 604 is turned outwards for clamping the sleeve 604 in the spring groove 602, and correspondingly, the spring groove 602 is provided with an inward bending structure for clamping the turned-up structure.
For the other end of the transmission shaft 5, in order to facilitate the purpose of controlling the power transmission process of the teasel of the transmission shaft from one side by only using one set of driving equipment, simplifying the usage amount of the equipment and ensuring the stability of the transmission control, in this embodiment, a circular second groove 402 is further provided at the shaft end of the guide shaft 401, a rotating ball 611 matched with the second groove 402 is provided at the output end of the bevel gear transmission set 6b near one side of the guide shaft 401, a curved groove 612 extending along the meridian of the rotating ball 611 is uniformly provided on the rotating ball 611, a convex block 403 in sliding fit with the curved groove 612 is provided on the inner wall of the second groove 402, the rotating ball 611 rotates in the curved groove 612 along the radial direction by adopting the sliding fit of the convex block 403 and the curved groove 612, that is, the relative swing between the rotating ball 611 and the second groove 402 is realized, when the convex portion 601 is matched with or disengaged from the first groove 302, the rotating ball 611 is always, the transmission state is continuously kept, vibration and impact when the transmission shaft 5 is involved in a power transmission system can be reduced, and the running stability of the equipment is improved.
Furthermore, the driving machine 2 is driven by a fuel oil machine to ensure sufficient power support for the cutting blade 3, and the driving machine 2 and the cutting blade 3 are in belt transmission so that the cutting blade 3 is protected by the slipping of a transmission belt when being stuck; the lower part of the frame body 1 is provided with a roller, and one side of the frame body 1 is provided with a push frame 10 convenient to hold by hands.
A use method of pavement cutting equipment for highway construction comprises the following steps:
s1, guiding: the motor drives the push rod 702 to push the transmission shaft 5 to one side of the cutting blade 3, so that the convex part 601 is clamped in the first groove 302, the ball 9 abuts against the first groove 302 and compresses the spring 603, the rotating saw blade shaft 301 drives the transmission shaft 5 to rotate through the ball 9, further the bevel gear set is used for driving the rotating ball 611 to rotate, the rotating ball 611 drives the guide shaft 401 to rotate by utilizing the sliding fit mechanism of the convex block 403 and the curved groove 612 on the rotating ball 611, further the guide wheel 4 is driven to rotate, the road surface is cut, traces are cut, the cutting blade 3 is convenient to cut along the traces, and the road surface is cut into blocks;
s2, grooving: the driving machine 2 drives the cutting blade 3 to rotate in a belt transmission mode to cut the road surface;
s3, micro-modification: the cutting blade 3 is circular and cannot cut the road surface completely, and corner remnants are generated, and at this time, the guide wheel 4 is replaced by a cutting device with a diameter smaller than that of the cutting blade 3 to cut the remnants, and the driving principle of the cutting device is performed according to S1.
Example 2
As shown in fig. 7, on the basis that the basic technical solution of embodiment 1 remains unchanged, the spring groove 602 is disposed along the axial direction of the protruding portion 601, the groove bottom surface of the first groove 302 is provided with an arc-shaped recess 304 that is matched with the ball 9, the friction between the ball 9 and the first groove 302 is increased by using the arc-shaped recess 304, the ball 9 is prevented from completely eliminating the driving force therebetween, and the driving force of the blade shaft 301 on the protruding portion 601 is appropriately increased.
In this patent, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in this patent may be understood by those of ordinary skill in the art as appropriate.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but that various changes and modifications may be made without departing from the spirit and scope of the invention, which shall fall within the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (5)
1. The utility model provides a road surface cutting equipment for highway construction, includes support body (1), install driving machine (2) on support body (1) and by driving machine (2) driven cutting piece (3), support body (1) forward-mounted has leading wheel (4), leading wheel (4) and cutting piece (3) coplane, leading wheel (4) correspond respectively with cutting piece (3) and are supported its characterized in that by guiding axle (401), saw bit axle (301) of movable mounting on support body (1):
a transmission shaft (5) connected with the cutting blade (3) and the guide wheel (4) is arranged on the frame body (1), and two ends of the transmission shaft (5) are correspondingly connected with the guide shaft (401) and the saw blade shaft (301) through bevel gear transmission sets (6 a and 6 b);
a support rod (7) is arranged on the frame body (1), a strip-shaped hole (701) is formed in the support rod (7), and the transmission shaft (5) penetrates through the strip-shaped hole (701);
a push rod (702) is arranged in the bearing rod (7), and a sliding sleeve is arranged on the part of the transmission shaft (5) positioned in the bearing rod (7); one side of the sliding sleeve is provided with a threaded hole, one end of the push rod (702) penetrates into the sliding sleeve in a threaded fit mode, the other end of the push rod (702) is driven to rotate by a motor, and the motor is fixedly arranged on the supporting rod (7);
a circular first groove (302) is formed in the shaft end of the saw blade shaft (301), a protruding portion (601) matched with the first groove (302) is arranged at the input end, close to the bevel gear transmission set (6 a) on one side of the saw blade shaft (301), a spring groove (602) is formed in the protruding portion (601), a spring (603) is arranged in the spring groove (602), and a ball (9) is arranged at the end portion of the spring (603); the spring groove (602) is arranged along the radial direction of the protruding part (601), an arc-shaped groove (303) matched with the ball (9) is arranged on the inner side wall of the first groove (302), and the arc-shaped groove (303) extends to the opening of the first groove (302);
the shaft end of the guide shaft (401) is provided with a circular second groove (402), the output end of the bevel gear transmission group (6 b) close to one side of the guide shaft (401) is provided with a rotating ball (611) matched with the second groove (402), the rotating ball (611) is uniformly provided with a curved groove (612) extending along the longitude or the latitude of the rotating ball (611), and the inner wall of the second groove (402) is provided with a convex block (403) in sliding fit with the curved groove (612).
2. A pavement cutting apparatus for road construction according to claim 1, wherein: the bevel gear transmission sets (6 a, 6 b) at the two ends of the transmission shaft (5) are all encapsulated by a shell, and the bevel gear transmission sets (6 a, 6 b) of each pair are kept meshed continuously.
3. A pavement cutting apparatus for road construction according to claim 2, wherein: a tension spring (8) is arranged between the frame body (1) and the transmission shaft (5).
4. A pavement cutting apparatus for road construction according to claim 2, wherein: a sleeve (604) is movably mounted in the spring groove (602), the spring (603) is mounted in the sleeve (604), a round hole (605) is formed in one end of the sleeve (604), the ball (9) extends out of a ball crown portion through the round hole (605), and the other end of the sleeve (604) is turned outwards to clamp the sleeve (604) in the spring groove (602).
5. A pavement cutting apparatus for road construction according to any one of claims 1-4, characterized in that: the driving machine (2) is one or more of a fuel oil machine or a motor, and the driving machine (2) and the cutting blade (3) are in belt transmission; the lower part of the frame body (1) is provided with a roller, and one side of the frame body (1) is provided with a pushing frame (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910175368.4A CN109837828B (en) | 2019-03-08 | 2019-03-08 | Pavement cutting equipment and method for highway construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910175368.4A CN109837828B (en) | 2019-03-08 | 2019-03-08 | Pavement cutting equipment and method for highway construction |
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| Publication Number | Publication Date |
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| CN109837828A CN109837828A (en) | 2019-06-04 |
| CN109837828B true CN109837828B (en) | 2020-02-28 |
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| CN201910175368.4A Expired - Fee Related CN109837828B (en) | 2019-03-08 | 2019-03-08 | Pavement cutting equipment and method for highway construction |
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| CN (1) | CN109837828B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827060A (en) * | 2020-06-15 | 2020-10-27 | 刘永 | Highway road surface joint-cutting equipment |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110656561B (en) * | 2019-09-15 | 2021-06-04 | 威海市市政工程有限公司 | Joint cutter for road construction |
| CN117030331B (en) * | 2023-08-26 | 2024-05-14 | 深圳市粤达科工程检测技术有限公司 | Road and bridge detection punching sampling method |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3710038A1 (en) * | 1987-03-30 | 1988-10-20 | Siegfried Goelz Kg | Mobile machine for cutting pavings |
| CN2561813Y (en) * | 2002-08-07 | 2003-07-23 | 深圳市夜明珠高新技术有限责任公司 | Road markline groove mill |
| US20100173742A1 (en) * | 2009-01-08 | 2010-07-08 | Apex Dynamics, Inc. | Epicyclic gearbox |
| CN104878682B (en) * | 2015-05-07 | 2017-03-15 | 广西长长路桥建设有限公司 | Pavement cutting machine |
| CN108393532A (en) * | 2018-05-10 | 2018-08-14 | 佛山市奔捷普机电科技有限公司 | A kind of cutting of aluminium alloy short tube with can high high adjustment clamping device |
| CN108914755B (en) * | 2018-07-20 | 2020-09-04 | 长乐雨盟机电科技有限公司 | Slotting equipment for bridge construction |
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2019
- 2019-03-08 CN CN201910175368.4A patent/CN109837828B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111827060A (en) * | 2020-06-15 | 2020-10-27 | 刘永 | Highway road surface joint-cutting equipment |
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