CN103924499B - Vibrated roller wheel support structure - Google Patents
Vibrated roller wheel support structure Download PDFInfo
- Publication number
- CN103924499B CN103924499B CN201410177657.5A CN201410177657A CN103924499B CN 103924499 B CN103924499 B CN 103924499B CN 201410177657 A CN201410177657 A CN 201410177657A CN 103924499 B CN103924499 B CN 103924499B
- Authority
- CN
- China
- Prior art keywords
- central shaft
- wheel body
- supporting base
- vibration wheel
- roller
- 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
Landscapes
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Road Paving Machines (AREA)
Abstract
The present invention has announced vibrated roller wheel support structure, and involving vibrations wheel body and central shaft are provided with supporting base on vibration wheel body, on supporting base, supports inner ring and supports outer ring along being axially disposed with of central shaft; Also comprise and be arranged on the seal cover that supports inner ring, threaded sleeve is also installed between seal cover and central shaft, and the outer surface of threaded sleeve is multiple thread, and multiple-threaded direction of rotation is vibration wheel body inner side. The outer surface that is arranged on the thin-walled threaded sleeve between seal cover and central shaft is provided with multiple thread, central shaft drives threaded sleeve to rotate, make the lubricating oil that is about to leak outside produce a rightabout power, force lubricating oil to the inner side motion of vibration wheel body, finally by supporting base, spill on central shaft and seal clearance in lubricating oil push back in supporting base, avoid the leakage of lubricating oil and cause central shaft temperature to continue to raise, when improving the stability of vibration wheel body, extend service life of the present invention.
Description
Technical field
The present invention relates to a kind of vibrated roller, specifically refer to vibrated roller wheel support structure.
Background technology
Road roller is a kind of compacting construction machinery taking special steel wheel or racing slick as apparatus for work, be widely used in the compacting operation to native stone embankment and paving material such as road engineering, harbour, airport, mine dam, urban construction, its effect is the packing that increases working face, thereby improve structural strength and the rigidity of working face, strengthen impermeabilisation ability and resistance to weather, reduce or eliminate depression, finally reaching the object that improves engineering bearing capacity, increases the service life, reduces maintenance cost. Because the operating mode of compacting operation varies, compacting machinary series and description are various, it simply can be divided into road roller, rammer compacter and compactor etc. Road roller is divided into again self-propelled, hand-held and drags formula, and rammer compacter (equipment is for dull and stereotyped) is divided into again impact plate compactor and vibratory plate compactor etc.
In conjunction with the concrete condition of Chinese road roller technology and production development, road roller can be divided into several large series such as quiet stone roller smooth-wheeled roller, single vibratory road roller, double-steel wheeled vibratory roller, combination roller, rubber-tyred roller, light-duty road roller and other extraordinary road rollers. In the use procedure of single vibratory road roller, because central shaft can produce a large amount of heat energy, and then cause central shaft self-temperature to raise and generation deformation, centered by making, the reserved gap of axle can not meet the deformation quantity of central shaft itself, cause central shaft to rotate dumb, also there will be the phenomenon of leakage of oil, and then affect the process efficiency of road roller.
Summary of the invention
The object of the present invention is to provide vibrated roller wheel support structure, expand and affect operating efficiency because being heated after avoiding central shaft to work long hours, improve the service life of central shaft vibrating wheels.
Object of the present invention is achieved through the following technical solutions:
Vibrated roller wheel support structure, involving vibrations wheel body and central shaft, one end of central shaft is run through and is vibrated the end of wheel body and rotation and be arranged on the other end of central shaft and the output of drive motors on vibration wheel body inwall and be connected, on described vibration wheel body, supporting base is installed, on supporting base, support inner ring and support outer ring along being axially disposed with of central shaft, on support inner ring, have groove, on groove inwall, have blind hole, in blind hole, rotate and be provided with roller bearing, roller bearing contacts with central shaft, junction at roller bearing and groove inwall is provided with floating sleeve, roller bearing is arranged in floating sleeve, between floating sleeve and blind hole inwall, be connected by spring, also comprise and be arranged on the seal cover that supports inner ring, threaded sleeve is also installed between described seal cover and central shaft, and the outer surface of described threaded sleeve is multiple thread, and multiple-threaded direction of rotation is vibration wheel body inner side. when the present invention works, drive motors drives central shaft to rotate, central shaft rotates and is arranged on supporting base, roller bearing contacts with central shaft, in the time that the operating temperature of central shaft raises, the radial expansion volume of central shaft is large, in the method that supports preset clearance on outer ring be not enough to the to make corrections swell increment of central shaft, be easy to cause supporting base impaired, reduce its service life, on support inner ring, offer groove, groove two ends are provided with blind hole, blind hole is connected with floating sleeve by spring, roller bearing rotates and is arranged in floating sleeve, floating sleeve can make roller bearing realize displacement radially, by size or the direction of roller bearing acceptor center axle radial stress, floating sleeve carries out movement in the same way, the compressed radial stress buffering that central shaft can be produced of spring, spring is replied and roller bearing can be resetted, realize the automatic adjusting of central shaft in the time being heated generation Volume Changes with this, avoid supporting base to cause larger damage, in the time that central shaft temperature raises, can inject lubricating oil to central shaft, when reducing friction, reduce the temperature of central shaft, the outer surface that is arranged on the thin-walled threaded sleeve between seal cover and central shaft is provided with multiple thread, central shaft can drive threaded sleeve to rotate while rotation, the direction of rotation of threaded sleeve is the inner side of vibration wheel body, this makes the lubricating oil that is about to leak outside produce a rightabout power, force lubricating oil to the inner side motion of vibration wheel body, finally by supporting base, spill on central shaft and seal clearance in lubricating oil push back in supporting base, avoid the leakage of lubricating oil and cause central shaft temperature to continue to raise, when improving the stability of vibration wheel body, extend service life of the present invention.
On vibration wheel body inwall corresponding to described supporting base, have rectangular channel, on the end of rectangular channel, rotate and be provided with roller, roller contacts with central shaft. After working long hours, central shaft can produce more heat, and then after causing central shaft to be heated, volume changes, in rectangular channel, sliding friction is become rolling friction by central shaft and the roller mode being connected of rolling, can reduce the generation of heat, ensure that central shaft is being subject to the follow-up continuous normal work of thermal stretching.
Movable eccentric block and two fixed eccentric blocks are installed on described central shaft, movable eccentric block is arranged between two fixed eccentric blocks, on fixed eccentric block, be provided with backing pin, described movable eccentric block rotates and is arranged on central shaft, and on movable eccentric block, projection is installed, described backing pin is positioned on the track that described projection moves in a circle. In the time that drive motors drives central shaft to turn clockwise, the quiet eccentric throw of movable eccentric block and fixed eccentric block is subtracted each other, thereby produces little amplitude, and, in the time that eccentric block arrives minimum point simultaneously, under the effect of centrifugal force, whole vibration wheel body is held by the earth; When central shaft is rotated counterclockwise, the quiet eccentric throw of movable eccentric block and fixed eccentric block is added, and then produces large amplitude, and, in the time that eccentric block peaks simultaneously, under the effect of centrifugal force, whole vibration wheel body is by unsettled; Do not changing under the condition of eccentric block quality, just can reach by changing the direction of rotation of central shaft the object that changes quiet eccentric throw, and then realizing the adjusting of the working amplitude of vibration wheel body.
Also comprise T-shaped muscle, described T-shaped muscle is arranged on the inwall of vibration wheel body. Because vibration wheel body ceaselessly rotates, central shaft rotary speed under the drive of drive motors is very fast, transmitted power is larger, must be to charging-up lubricant oil on central shaft, the T-shaped muscle arranging on vibration wheel body inwall, no matter vibration wheel body positive and negative rotation all can lift up lubricating oil and water on eccentric block, central shaft and supporting base, reach sufficient lubrication and accelerate the object of dispelling the heat, operating temperature can effectively delay oil ageing after reducing, and extends the service life of supporting base.
On described supporting base, also have air-vent, described air-vent is in communication with the outside vibration wheel body inside. In the time that the temperature of vibration wheel body inside raises; in wheel body, can accumulate more oil gas, can directly cause the oil seal failure leakage of oil of supporting base, the air-vent of offering can be got rid of oil gas fast; the containment member of protection vibration wheel body inside, extends its service life to greatest extent.
The present invention compared with prior art, has following advantage and beneficial effect:
1, vibrated roller wheel support structure of the present invention, in the time that central shaft temperature raises, can inject lubricating oil to central shaft, when reducing friction, reduce the temperature of central shaft, the outer surface that is arranged on the thin-walled threaded sleeve between seal cover and central shaft is provided with multiple thread, central shaft can drive threaded sleeve to rotate while rotation, the direction of rotation of threaded sleeve is the inner side of vibration wheel body, this makes the lubricating oil that is about to leak outside produce a rightabout power, force lubricating oil to the inner side motion of vibration wheel body, finally by supporting base, spill on central shaft and seal clearance in lubricating oil push back in supporting base, avoid the leakage of lubricating oil and cause central shaft temperature to continue to raise, when improving the stability of vibration wheel body, extend service life of the present invention,
2, vibrated roller wheel support structure of the present invention, under the effect of centrifugal force, whole vibration wheel body is by unsettled; Do not changing under the condition of eccentric block quality, just can reach by changing the direction of rotation of central shaft the object that changes quiet eccentric throw, and then realizing the adjusting of the working amplitude of vibration wheel body;
3, vibrated roller wheel support structure of the present invention, the T-shaped muscle arranging on vibration wheel body inwall, no matter vibration wheel body positive and negative rotation all can lift up lubricating oil and water on eccentric block, central shaft and supporting base, reach sufficient lubrication and accelerate the object of dispelling the heat, after operating temperature reduces, can effectively delay oil ageing, extend the service life of supporting base.
Brief description of the drawings
Accompanying drawing described herein is used to provide the further understanding to the embodiment of the present invention, forms the application's a part, does not form the restriction to the embodiment of the present invention. In the accompanying drawings:
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial enlarged drawing of Fig. 1;
Fig. 3 is the cutaway view of eccentric block;
Mark and corresponding parts title in accompanying drawing:
1-vibration wheel body, 2-central shaft, 3-supporting base, 4-rectangular channel, 5-space, 6-roller, 7-fixed eccentric block, 8-backing pin, 9-fixed eccentric block, the movable eccentric block of 10-, 11-support inner ring, 12-supports outer ring, 13-air-vent, 14-spring, 15-floating sleeve, 16-roller bearing, 17-groove, 18-T type muscle, 19-projection, 20-threaded sleeve, 21-seal cover.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, and exemplary embodiment of the present invention and explanation thereof are only for explaining the present invention, not as a limitation of the invention.
Embodiment 1
As shown in Figure 1 to Figure 3, vibrated roller wheel support structure 3 of the present invention, involving vibrations wheel body 1 and central shaft 2, one end of central shaft 2 is run through and is vibrated the end of wheel body 1 and rotation and be arranged on the other end of central shaft 2 and the output of drive motors on vibration wheel body 1 inwall and be connected, on described vibration wheel body 1, supporting base 3 is installed, on supporting base 3, support inner ring 11 and support outer ring 12 along being axially disposed with of central shaft 2, on support inner ring 11, have groove 17, on groove 17 inwalls, have blind hole, in blind hole, rotate and be provided with roller bearing 16, roller bearing 16 contacts with central shaft 2, in roller bearing 16 and the junction of groove 17 inwalls, floating sleeve 15 is installed, roller bearing 16 is arranged in floating sleeve 15, between floating sleeve 15 and blind hole inwall, be connected by spring 14, also comprise and be arranged on the seal cover that supports inner ring 11, between described seal cover 21 and central shaft 2, threaded sleeve 20 is also installed, the outer surface of described threaded sleeve 20 is multiple thread, and multiple-threaded direction of rotation is vibration wheel body inner side. when the present invention works, drive motors drives central shaft 2 to rotate, central shaft 2 rotates and is arranged on supporting base 3, roller bearing 16 contacts with central shaft 2, in the time that the operating temperature of central shaft 2 raises, the radial expansion volume of central shaft 2 is large, in the method that supports preset clearance on inner ring 11 be not enough to the to make corrections swell increment of central shaft 2, be easy to cause supporting base 3 impaired, reduce its service life, on support inner ring 11, offer groove 17, groove 17 two ends are provided with blind hole, blind hole is connected with floating sleeve 15 by spring 14, roller bearing 16 rotates and is arranged in floating sleeve 15, floating sleeve 15 can make roller bearing 16 realize displacement radially, by size or the direction of roller bearing 16 acceptor center axle 2 radial stresses, the movement that floating sleeve 15 carries out in the same way, the compressed radial stress buffering that central shaft 2 can be produced of spring 14, spring 14 is replied and roller bearing 16 can be resetted, realize the automatic adjusting of central shaft 2 in the time being heated generation Volume Changes with this, avoid supporting base 3 to cause larger damage, in the time that central shaft 2 temperature raise, can inject lubricating oil to central shaft 2, when reducing friction, reduce the temperature of central shaft 2, the outer surface that is arranged on the thin-walled threaded sleeve 20 between seal cover 21 and central shaft 2 is provided with multiple thread, when rotating, central shaft 2 can drive threaded sleeve 20 to rotate, the direction of rotation of threaded sleeve 20 is the inner side of vibration wheel body 1, this makes the lubricating oil that is about to leak outside produce a rightabout power, force lubricating oil to the interior lateral movement of vibration wheel body 1, finally by supporting base 3, spill on central shaft 2 and seal clearance in lubricating oil push back in supporting base 3, avoid the leakage of lubricating oil and cause central shaft 2 temperature to continue to raise, when improving the stability of vibration wheel body 1, extend service life of the present invention.
Embodiment 2
As shown in Figure 1, the present embodiment, on the basis of embodiment 1, has rectangular channel 4 on vibration wheel body 1 inwall of described supporting base 3 correspondences, on the end of rectangular channel 4, rotates and is provided with roller 6, and roller 6 contacts with central shaft 2. After working long hours, central shaft 2 can produce more heat, and then after causing central shaft 2 to be heated, volume changes, in the interior central shaft 2 of rectangular channel 4 and roller 6 mode being connected of rolling, sliding friction is become to rolling friction, can reduce the generation of heat, can compensate the thermal stretching that is subject to of central shaft 2, ensure that central shaft 2 is being subject to the follow-up continuous normal work of thermal stretching.
Embodiment 3
As shown in figures 1 and 3, the present embodiment is on the basis of embodiment 1, movable eccentric block 10 and two fixed eccentric blocks 7 are installed on described central shaft 2, movable eccentric block 10 is arranged between two fixed eccentric blocks 7, on fixed eccentric block 7, be provided with backing pin 8, described movable eccentric block 10 rotates and is arranged on central shaft 2, and projection 19 is installed on movable eccentric block 10, and described backing pin 8 is positioned on described protruding 19 tracks that move in a circle. In the time that drive motors drives central shaft 2 to turn clockwise, movable eccentric block 10 subtracts each other with the quiet eccentric throw of fixed eccentric block 7, thereby produces little amplitude, and, in the time that eccentric block arrives minimum point simultaneously, under the effect of centrifugal force, whole vibration wheel body 1 is held by the earth; When central shaft 2 is rotated counterclockwise, movable eccentric block 10 is added with the quiet eccentric throw of fixed eccentric block 7, and then produces large amplitude, and, in the time that eccentric block peaks simultaneously, under the effect of centrifugal force, whole vibration wheel body 1 is by unsettled; Do not changing under the condition of eccentric block quality, just can reach by changing the direction of rotation of central shaft 2 object that changes quiet eccentric throw, and then realizing the adjusting of the working amplitude of vibration wheel body 1.
Embodiment 4
As shown in Figure 1, the present embodiment, on the basis of embodiment 1, also comprises T-shaped muscle 18, and described T-shaped muscle 18 is arranged on the inwall of vibration wheel body 1. Because vibration wheel body 1 ceaselessly rotates, central shaft 2 rotary speed under the drive of drive motors is very fast, transmitted power is larger, must be to charging-up lubricant oil on central shaft 2, the T-shaped muscle 18 arranging on vibration wheel body 1 inwall, no matter vibration wheel body 1 positive and negative rotation all can lift up lubricating oil and water on eccentric block, central shaft 2 and supporting base 3, reach sufficient lubrication and accelerate the object of dispelling the heat, operating temperature can effectively delay oil ageing after reducing, and extends the service life of supporting base 3.
On described supporting base 3, also have air-vent 13, described air-vent 13 is in communication with the outside vibration wheel body 1 inside. In the time that the temperature of vibration wheel body 1 inside raises; in wheel body, can accumulate more oil gas, can directly cause the oil seal failure leakage of oil of supporting base 3, the air-vent 13 of offering can be got rid of oil gas fast; the containment member of protection vibration wheel body 1 inside, extends its service life to greatest extent.
Above-described detailed description of the invention; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only the specific embodiment of the present invention; the protection domain being not intended to limit the present invention; within the spirit and principles in the present invention all, any amendment of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (3)
1. vibrated roller wheel support structure, involving vibrations wheel body (1) and central shaft (2), one end of central shaft (2) is run through the other end that the end of vibration wheel body (1) and rotation be arranged on central shaft (2) on vibration wheel body (1) inwall and is connected with the output of drive motors, it is characterized in that: supporting base (3) is installed on described vibration wheel body (1), supporting base (3) is upper to be supported inner ring (11) and supports outer ring (12) along being axially disposed with of central shaft (2), on support inner ring (11), have groove (17), on groove (17) inwall, have blind hole, in blind hole, rotate and be provided with roller bearing (16), roller bearing (16) contacts with central shaft (2), junction at roller bearing and groove (17) inwall is provided with floating sleeve (15), roller bearing (16) is arranged in floating sleeve (15), between floating sleeve (15) and blind hole inwall, be connected by spring (14), also comprise and be arranged on the seal cover (21) that supports inner ring (11), between described seal cover (21) and central shaft (2), threaded sleeve (20) is also installed, the outer surface of described threaded sleeve (20) is multiple thread, and multiple-threaded direction of rotation is vibration wheel body (1) inner side, on vibration wheel body (1) inwall corresponding to described supporting base (3), have rectangular channel (4), on the end of rectangular channel (4), rotate and be provided with roller (6), roller (6) contacts with central shaft (2), also comprise T-shaped muscle (18), described T-shaped muscle (18) is arranged on the inwall of vibration wheel body (1).
2. vibrated roller wheel support structure according to claim 1, it is characterized in that: movable eccentric block (10) and two fixed eccentric blocks (7) are installed on described central shaft (2), (9), movable eccentric block (10) is arranged on two fixed eccentric blocks (7), (9) between, on fixed eccentric block (7), be provided with backing pin (8), described movable eccentric block (10) rotates and is arranged on central shaft (2), and projection (19) is installed on movable eccentric block (10), described backing pin (8) is positioned on the track that described projection (19) moves in a circle.
3. vibrated roller wheel support structure according to claim 1 and 2, is characterized in that: on described supporting base (3), also have air-vent (13), described air-vent (13) will vibrate wheel body (1) inside and be in communication with the outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410177657.5A CN103924499B (en) | 2014-04-30 | 2014-04-30 | Vibrated roller wheel support structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410177657.5A CN103924499B (en) | 2014-04-30 | 2014-04-30 | Vibrated roller wheel support structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103924499A CN103924499A (en) | 2014-07-16 |
| CN103924499B true CN103924499B (en) | 2016-05-11 |
Family
ID=51142879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410177657.5A Active CN103924499B (en) | 2014-04-30 | 2014-04-30 | Vibrated roller wheel support structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103924499B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106149523A (en) * | 2016-08-29 | 2016-11-23 | 成都艾维拓思科技有限公司 | A kind of smoother |
| CN111424501B (en) * | 2020-04-10 | 2021-10-08 | 长沙宁湖机械设备有限公司 | Road roller rolling wheel containing vibration excitation device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH559067A5 (en) * | 1971-12-18 | 1975-02-28 | Bechem Karl Guenther | |
| CN2433296Y (en) * | 2000-07-11 | 2001-06-06 | 三一重工股份有限公司 | Vibration roller of roller with chamber structure |
| CN2433295Y (en) * | 2000-07-11 | 2001-06-06 | 三一重工股份有限公司 | Circulation lubricating cooling structure of vibration roller |
| CN1382872A (en) * | 2002-05-16 | 2002-12-04 | 陈启方 | Vibration exciter with constant exciting force for vibration-type road roller and lubricating and cooling unit for vibration bearing |
| CN203284716U (en) * | 2013-04-10 | 2013-11-13 | 中联重科股份有限公司 | Road roller and vibration wheel supporting structure thereof |
| CN203821203U (en) * | 2014-04-30 | 2014-09-10 | 成都海凌达机械有限公司 | Wheel body structure of vibratory roller |
-
2014
- 2014-04-30 CN CN201410177657.5A patent/CN103924499B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH559067A5 (en) * | 1971-12-18 | 1975-02-28 | Bechem Karl Guenther | |
| CN2433296Y (en) * | 2000-07-11 | 2001-06-06 | 三一重工股份有限公司 | Vibration roller of roller with chamber structure |
| CN2433295Y (en) * | 2000-07-11 | 2001-06-06 | 三一重工股份有限公司 | Circulation lubricating cooling structure of vibration roller |
| CN1382872A (en) * | 2002-05-16 | 2002-12-04 | 陈启方 | Vibration exciter with constant exciting force for vibration-type road roller and lubricating and cooling unit for vibration bearing |
| CN203284716U (en) * | 2013-04-10 | 2013-11-13 | 中联重科股份有限公司 | Road roller and vibration wheel supporting structure thereof |
| CN203821203U (en) * | 2014-04-30 | 2014-09-10 | 成都海凌达机械有限公司 | Wheel body structure of vibratory roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103924499A (en) | 2014-07-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203821203U (en) | Wheel body structure of vibratory roller | |
| CN104164823A (en) | Road roller wheel supporting device and using method thereof | |
| CN103938530B (en) | A kind of vibration wheel body | |
| CN203821204U (en) | Wheel body structure of vibratory roller with single steel wheel | |
| CN101631975B (en) | Lubrication seal and wind turbine with lubrication seal | |
| CN109736212B (en) | Rolling friction type walking pushing device for bridge segment installation | |
| CN106149521A (en) | The vibration wheel body of road roller | |
| CN103924499B (en) | Vibrated roller wheel support structure | |
| CN202199493U (en) | Shaft type vibrator of vibrating screen | |
| CN106672658B (en) | A shotcrete pump and method of using the same | |
| CN104164824A (en) | Vibrating wheel body and using method thereof | |
| CN106245497A (en) | A kind of vibrating roller | |
| CN106245498A (en) | A kind of wheel body of single vibratory road roller | |
| CN106149522A (en) | A kind of pressure roller for road roller | |
| CN106245496A (en) | A kind of road roller | |
| CN204591659U (en) | A kind of plunger head rolling structure without piston shoes being applicable to radial plunger hydraulic pump | |
| CN107964855B (en) | Steel wheel system with oscillation and vibration functions | |
| CN205741847U (en) | A kind of civil engineering rammer | |
| CN202543776U (en) | Road roller and compaction device thereof | |
| CN105387072B (en) | A kind of structure of the alternative rolling bearing of hydraulic motor | |
| CN107687164A (en) | High-fill roadbed substrate tamps flattening device | |
| CN106149524A (en) | A kind of single-drum road roller for evenness of road surface | |
| CN106149523A (en) | A kind of smoother | |
| CN102888806A (en) | Combined type road leveling machine of steel wheel tire | |
| CN106149525A (en) | A kind of vibration wheel body of planisher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |