CN102720116B - A kind of asphalt paver pair tamping equipment waiting stroke - Google Patents

A kind of asphalt paver pair tamping equipment waiting stroke Download PDF

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Publication number
CN102720116B
CN102720116B CN201210208251.XA CN201210208251A CN102720116B CN 102720116 B CN102720116 B CN 102720116B CN 201210208251 A CN201210208251 A CN 201210208251A CN 102720116 B CN102720116 B CN 102720116B
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China
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eccentric
vibrates
bearing
segment
support
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Expired - Fee Related
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CN201210208251.XA
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Chinese (zh)
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CN102720116A (en
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赵利军
冯忠绪
王成
侯有良
沈建军
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Changan University
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Changan University
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Abstract

The invention discloses a kind of asphalt paver pair tamping equipment waiting stroke, comprise eccentric shaft and be arranged on the front tamping equipment on eccentric shaft, rear tamping equipment, left fixed support part and right fixed support part; Eccentric shaft comprises and setting gradually from left to right and non-eccentricity section and right outside side eccentric segment on the right side of interconnective left-external side eccentric segment, left side non-eccentricity section, left inside side eccentric segment, center non-eccentricity section, Right Inboard eccentric segment, first, left-external side eccentric segment is identical with the eccentric direction of right outside side eccentric segment and eccentric throw is e1, left inside side eccentric segment is identical with the eccentric direction of Right Inboard eccentric segment and eccentric throw is e2, e1=e2, the eccentric direction of left-external side eccentric segment and left inside side eccentric segment is contrary, and the eccentric direction of right outside side eccentric segment and Right Inboard eccentric segment is contrary.The present invention effectively can eliminate the impact of inertia force on paver, simplifies spreader vibration apparatus structure, reduces the vibration effect to screed in tamping equipment work.

Description

A kind of asphalt paver pair tamping equipment waiting stroke
Technical field
The present invention relates to a kind of spreader vibration device, especially relate to a kind of asphalt paver pair tamping equipment waiting stroke.
Background technology
Asphalt paver is requisite equipment in road machineization construction.Tamping equipment is one of groundwork device of paver, and it is close to before screed, plays tamping to material spreader, and its service behaviour has important impact to the planeness of paving concrete pavement and degree of compaction.Tamping equipment is generally divided into and singly vibrates and two two kinds of forms of vibrating, and wherein twoly vibrates because having higher precompressed solidity, so be widely adopted in paver.According to the direction of advance of paver, part of vibrating before two tamping equipment comprises and after to vibrate part, drive an eccentric shaft to rotate by power set, thus vibrate before driving part and after part of vibrating pump, realize making firm by ramming of bituminous mixture closely knit.
At present, two tamping equipment stroke that vibrates before being substantially all is that 0-3-6-9-12mm is adjustable, after the stroke that vibrates be the structure that 5mm is fixing.But, in practice of construction process, spreader vibration stroke infrequently regulating, the stroke that vibrates before mostly adopting is 6mm, after the stroke that vibrates be this mode of operation of 5mm.The stroke regulating mechanism that vibrates is made up of eccentric shaft and eccentric bushing, and eccentric bushing is placed on eccentric shaft, by the relative angle of eccentric adjustment cover with eccentric shaft, thus total offset that change eccentric shaft and eccentric bushing are formed, and then change the stroke that vibrates.Although before the stroke that vibrates adjustable, multiple parameter of vibrating can be provided for you to choose for user, bring adverse influence also to paver and performance thereof.First, because the stroke regulating mechanism that vibrates is comparatively complicated, require high to manufacture and installation accuracy, often easily cause the stroke at two ends, same tamping equipment left and right inconsistent during adjustment, cause tamping equipment normally to work; And more seriously two tamping equipment in reciprocating motion, because the stroke of forward and backward part of vibrating is different, the direction of motion is not contrary, it must be made to produce larger unbalance inertia force in the course of the work, thus negative interference and bad vibration effect are produced to screed, cause the spreading quality of the decline of machine functional performance and road pavement to reduce.Therefore, how effectively eliminate the inertia force that tamping equipment produces, be the problem paid special attention to of numerous paver manufacturer and technological difficulties always.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency of the prior art, there is provided a kind of and wait the two tamping equipment of the asphalt paver of stroke, effectively can eliminate the impact of inertia force on paver, not only simplify the structure of existing asphalt paver tamping equipment, make making and installation simpler, and service behaviour is also more reliable, and significantly can reduce to affect the bad vibration of screed in the tamping equipment course of work, effectively improve the spreading quality on road surface.
For achieving the above object, the technical solution used in the present invention is: a kind of asphalt paver pair tamping equipment waiting stroke, is characterized in that: comprise eccentric shaft and be arranged on the front tamping equipment on described eccentric shaft, rear tamping equipment, left fixed support part and right fixed support part, described eccentric shaft comprises and setting gradually from left to right and interconnective left-external side eccentric segment, left side non-eccentricity section, left inside side eccentric segment, center non-eccentricity section, Right Inboard eccentric segment, non-eccentricity section and right outside side eccentric segment on the right side of in the of first, described left-external side eccentric segment is identical with the eccentric direction of right outside side eccentric segment and eccentric throw is e 1, described left inside side eccentric segment is identical with the eccentric direction of Right Inboard eccentric segment and eccentric throw is e2, described e1=e2, the eccentric direction of described left-external side eccentric segment and left inside side eccentric segment is contrary, the eccentric direction of described right outside side eccentric segment and Right Inboard eccentric segment is contrary.
Above-mentioned a kind of asphalt paver pair tamping equipment waiting stroke, it is characterized in that: described front tamping equipment comprises front vibrating beam, the left front bearing that vibrates, the right front bearing that vibrates, left front bearing support and the right front bearing support that vibrates of vibrating, the described left front bearing support that vibrates is connected on the eccentric segment of left inside side by the left front bearing holder (housing, cover) that vibrates, the described right front bearing support that vibrates is connected on Right Inboard eccentric segment by the right front bearing holder (housing, cover) that vibrates, and the described left front bearing support that vibrates all is fixedly connected with front vibrating beam by the first bolt with the bottom of the right front bearing support that vibrates.
Above-mentioned a kind of asphalt paver pair tamping equipment waiting stroke, it is characterized in that: described rear tamping equipment comprises rear vibrating beam, the left back bearing that vibrates, the right back bearing that vibrates, left back bearing support and the right back bearing support that vibrates of vibrating, the described left back bearing support that vibrates is connected on left-external side eccentric segment by the left back bearing holder (housing, cover) that vibrates, the described right back bearing support that vibrates is connected on the eccentric segment of right outside side by the right back bearing holder (housing, cover) that vibrates, and the described left back bearing support that vibrates all is fixedly connected with rear vibrating beam by the second bolt with the bottom of the right back bearing support that vibrates.
Above-mentioned a kind of asphalt paver pair tamping equipment waiting stroke, it is characterized in that: described left fixed support portion divides and comprises left support bearing and left support bearing support, described left support bearing support is connected in the non-eccentricity section of left side by left support bearing holder (housing, cover); Described right fixed support portion divides and comprises right support bearing and right support bearing support, described right support bearing support be connected on first by right support bearing holder (housing, cover) on the right side of in non-eccentricity section.
Above-mentioned a kind of asphalt paver pair tamping equipment waiting stroke, is characterized in that: described e1=e2=2.5mm or e1=e2=3mm.
Above-mentioned a kind ofly wait the two tamping equipment of the asphalt paver of stroke, it is characterized in that: described eccentric shaft also comprise be arranged on right outside side eccentric segment right-hand member second on the right side of non-eccentricity section, on the right side of in the of described second, non-eccentricity section is connected with right outside side eccentric segment.
Above-mentioned a kind of asphalt paver pair tamping equipment waiting stroke, is characterized in that: on the right side of described left-external side eccentric segment, left side non-eccentricity section, left inside side eccentric segment, center non-eccentricity section, Right Inboard eccentric segment, first, on the right side of non-eccentricity section, right outside side eccentric segment and second, non-eccentricity section is one-body molded.
Above-mentioned a kind of asphalt paver pair tamping equipment waiting stroke, it is characterized in that: described left-external side eccentric segment and right outside side eccentric segment are symmetrical arranged, on the right side of described left side non-eccentricity section and first, non-eccentricity section is symmetrical arranged, and described left inside side eccentric segment and Right Inboard eccentric segment are symmetrical arranged.
Above-mentioned a kind of asphalt paver pair tamping equipment waiting stroke, is characterized in that: described front vibrating beam and rear vibrating beam be arranged in parallel.
The present invention compared with prior art has the following advantages:
1, in the present invention, because left-external side eccentric segment is identical with the eccentric direction of right outside side eccentric segment and eccentric throw is e1, left inside side eccentric segment is identical with the eccentric direction of Right Inboard eccentric segment and eccentric throw is e2, e1=e2, the eccentric direction of left-external side eccentric segment and left inside side eccentric segment is contrary, the eccentric direction of right outside side eccentric segment and Right Inboard eccentric segment is contrary, therefore make front tamping equipment and rear tamping equipment, when vibrating, phase place differ 180 °, so not only effectively eliminate the impact of vibrating inertia force on paver, and can significantly reduce to affect the bad vibration of screed in the tamping equipment course of work.
2, the front vibrating beam moved reciprocatingly in the course of the work due to two tamping equipment and the phase difference of rear vibrating beam are 180 °, and stroke is equal all the time, thus the reciprocal inertia force making front vibrating beam and rear vibrating beam produce can effectively be cancelled out each other, thus the negative interference of screed generation and the impact of bad vibration are reduced greatly.Two tamping equipments of this structure, eccentric distance e 1 and e2 are designed to 2.5mm or 3mm simultaneously, namely the stroke of front vibrating beam and rear vibrating beam is 5mm or 6mm, the paving operation of the conventional operating mode of great majority can be suitable for, particularly compared with two tamping equipments of traditional structure, not only save the eccentric bushing needed for stroke regulating mechanism, simplify tamping equipment structure, making and installation is simpler, also be convenient to ensure that the stroke of the front vibrating beam of same tamping equipment and rear vibrating beam is consistent, and effectively can eliminate the reciprocal inertia force that two tamping equipment produces in motion process, improve machine functional performance, guarantee that service behaviour is more reliable, and then ensure pavement spread quality.
3, the scope of application is wide, on the section of foundation screed that the present invention is not only configurable on mechanical flared crossing screed and lengthening section screed, on the basic segment screed being also configurable on hydraulic telescopic type screed and lengthening section screed.
Below by drawings and Examples, the present invention is described in further detail.
Accompanying drawing explanation
Fig. 1 is the structural representation of the first detailed description of the invention of the present invention.
Fig. 2 is the structural representation of eccentric shaft in the first detailed description of the invention of the present invention.
Fig. 3 is the left view that the first detailed description of the invention of the present invention is arranged on screed casing.
Fig. 4 is the structural representation of the second detailed description of the invention of the present invention.
Fig. 5 is the structural representation of eccentric shaft in the second detailed description of the invention of the present invention.
Description of reference numerals:
1-transmission joint; 2-left back the bearing support that vibrates; 3-left back the bearing that vibrates;
4-left support bearing support; 5-left support bearing; The left front bearing support that vibrates of 6-;
7-left front the bearing that vibrates; 8-1-center non-eccentricity section; 8-2-left inside side eccentric segment;
8-3-Right Inboard eccentric segment; 8-4-left-external side eccentric segment; 8-5-right outside side eccentric segment;
8-6-left side non-eccentricity section; Non-eccentricity section on the right side of 8-7-the first;
Non-eccentricity section on the right side of 8-8-the second; 9-right front the bearing support that vibrates;
10-right front the bearing that vibrates; 11-right support bearing support; 12-right support bearing;
13-right back the bearing support that vibrates; 14-right back the bearing that vibrates; 15-main drive;
16-front vibrating beam; 17-rear vibrating beam; 18-lengthening section screed casing;
19-1-the first bolt; 19-2-the second bolt.
Detailed description of the invention
Embodiment 1
As shown in Figure 1, a kind of asphalt paver pair tamping equipment waiting stroke, comprises eccentric shaft and is arranged on the front tamping equipment on described eccentric shaft, rear tamping equipment, left fixed support part and right fixed support part.
As shown in Figure 2, described eccentric shaft comprises and setting gradually from left to right and interconnective left-external side eccentric segment 8-4, left side non-eccentricity section 8-6, left inside side eccentric segment 8-2, center non-eccentricity section 8-1, Right Inboard eccentric segment 8-3, non-eccentricity section 8-7 and right outside side eccentric segment 8-5 on the right side of in the of first, described left-external side eccentric segment 8-4 is identical with the eccentric direction of right outside side eccentric segment 8-5 and eccentric throw is e1, described left inside side eccentric segment 8-2 is identical with the eccentric direction of Right Inboard eccentric segment 8-3 and eccentric throw is e2, described e1=e2, the eccentric direction of described left-external side eccentric segment 8-4 and left inside side eccentric segment 8-2 is contrary, the eccentric direction of described right outside side eccentric segment 8-5 and Right Inboard eccentric segment 8-3 is contrary, make front tamping equipment and rear tamping equipment, when vibrating, phase place differ 180 ° like this.
As shown in Figure 1, described front tamping equipment comprises front vibrating beam 16, the left front bearing 7 that vibrates, the right front bearing 10 that vibrates, left front bearing support 6 and the right front bearing support 9 that vibrates of vibrating, the described left front bearing support 6 that vibrates is socketed on left inside side eccentric segment 8-2 by the left front bearing 7 that vibrates, the described right front bearing support 9 that vibrates is socketed on Right Inboard eccentric segment 8-3 by the right front bearing 10 that vibrates, and the described left front bearing support 6 that vibrates all is fixedly connected with front vibrating beam 16 by the first bolt 19-1 with the bottom of the right front bearing support 9 that vibrates.
As shown in Figure 1, described rear tamping equipment comprises rear vibrating beam 17, the left back bearing 3 that vibrates, the right back bearing 14 that vibrates, left back bearing support 2 and the right back bearing support 13 that vibrates of vibrating, the described left back bearing support 2 that vibrates is socketed on left-external side eccentric segment 8-4 by the left back bearing 3 that vibrates, the described right back bearing support 13 that vibrates is socketed on right outside side eccentric segment 8-5 by the right back bearing 14 that vibrates, and the described left back bearing support 2 that vibrates all is fixedly connected with rear vibrating beam 17 by the second bolt 19-2 with the bottom of the right back bearing support 13 that vibrates.
As shown in Figure 1, described left fixed support portion divides and comprises left support bearing 5 and left support bearing support 4, and described left support bearing support 4 is socketed on the non-eccentricity section 8-6 of left side by left support bearing 5; Described right fixed support portion divides and comprises right support bearing 12 and right support bearing support 11, described right support bearing support 11 be socketed in first by right support bearing 12 on the right side of on non-eccentricity section 8-7.During use, left support bearing support 4 and right support bearing support 11 are all bolted on screed casing 18.
In the present embodiment, described e1=e2=2.5mm or e1=e2=3mm, the stroke that namely vibrates is 5mm or 6mm.
As shown in Figure 2, described left-external side eccentric segment 8-4 and right outside side eccentric segment 8-5 is symmetrical arranged, and on the right side of described left side non-eccentricity section 8-6 and first, non-eccentricity section 8-7 is symmetrical arranged, and described left inside side eccentric segment 8-2 and Right Inboard eccentric segment 8-3 is symmetrical arranged.
As shown in Figure 1, described front vibrating beam 16 and rear vibrating beam 17 be arranged in parallel.
The operating principle of the present embodiment is: the present embodiment is applicable to the lengthening section screed casing being installed on paver, during use, by bolt, left support bearing support 4 and right support bearing support 11 are all fixed on lengthening section screed casing (as shown in Figure 3), and all fixedly mount transmission joint 1(as shaft coupling at the left end of eccentric shaft 8 and right-hand member) can use.During work, transmission joint 1 is by being connected with active tamping equipment (transmission joint 1 as in embodiment 2) or power set (be adjacent and arrange and be arranged on the transmission joint of the two tamping equipment of asphalt paver on lengthening section screed casing) and obtaining power, thus drive eccentric shaft 8 to rotate, and then force and be arranged on front vibrating beam 16 on eccentric shaft 8 and rear vibrating beam 17 pumps and swing, the lower end of front vibrating beam 16 and rear vibrating beam 17 is constantly impacted loose compound, and then realize tentatively closely knit to compound, to reach the compaction requirement of paving layer.In the present embodiment, because eccentric shaft 8 has design feature as shown in Figure 2, therefore determine and be socketed in left inside side eccentric segment 8-2 by the left front bearing 7 that vibrates and be socketed in before on Right Inboard eccentric segment 8-3 vibrating beam 16 before tamping equipment bottom by the right front bearing 10 that vibrates, with be socketed in left-external side eccentric segment 8-4 by the left back bearing 3 that vibrates and make stroke all the time by the right back bearing 14 that the vibrates rear vibrating beam 17 be socketed on right outside side eccentric segment 8-5 equal, and phase difference is the reciprocating motion of 180 °, thus make the reciprocal inertia force equal and opposite in direction that front vibrating beam 16 and rear vibrating beam 17 produce, direction is contrary, can effectively cancel out each other, and then the negative interference of screed generation and the impact of bad vibration are reduced greatly.
Embodiment 2
As shown in Figure 4 and Figure 5, the present embodiment as different from Example 1: described eccentric shaft also comprise be arranged on right outside side eccentric segment 8-5 right-hand member second on the right side of non-eccentricity section 8-8, on the right side of in the of described second, non-eccentricity section 8-8 is connected with right outside side eccentric segment 8-5.During actual fabrication, on the right side of described left-external side eccentric segment 8-4, left side non-eccentricity section 8-6, left inside side eccentric segment 8-2, center non-eccentricity section 8-1, Right Inboard eccentric segment 8-3, first, on the right side of non-eccentricity section 8-7, right outside side eccentric segment 8-5 and second, non-eccentricity section 8-8 is one-body molded.The present embodiment is applicable to being installed on the section of foundation screed of paver, during work, by bolt, left support bearing support 4 and right support bearing support 11 are all fixed on screed casing 18, and fixedly mount transmission joint 1(as shaft coupling at the left end of eccentric shaft 8), fixedly mount main drive 15(as belt pulley at the right-hand member of eccentric shaft 8) can use.In the present embodiment, structure, the annexation of remainder are all identical with embodiment 1 with operating principle.
The above; it is only preferred embodiment of the present invention; not the present invention is imposed any restrictions, every above embodiment is done according to the technology of the present invention essence any simple modification, change and equivalent structure transformation, all still belong in the protection domain of technical solution of the present invention.

Claims (6)

1. wait the two tamping equipment of the asphalt paver of stroke, it is characterized in that: comprise eccentric shaft and be arranged on the front tamping equipment on described eccentric shaft, rear tamping equipment, left fixed support part and right fixed support part, described eccentric shaft comprises and setting gradually from left to right and interconnective left-external side eccentric segment (8-4), left side non-eccentricity section (8-6), left inside side eccentric segment (8-2), center non-eccentricity section (8-1), Right Inboard eccentric segment (8-3), non-eccentricity section (8-7) and right outside side eccentric segment (8-5) on the right side of in the of first, described left-external side eccentric segment (8-4) is identical with the eccentric direction of right outside side eccentric segment (8-5) and eccentric throw is e1, described left inside side eccentric segment (8-2) is identical with the eccentric direction of Right Inboard eccentric segment (8-3) and eccentric throw is e2, described e1=e2, the eccentric direction of described left-external side eccentric segment (8-4) and left inside side eccentric segment (8-2) is contrary, the eccentric direction of described right outside side eccentric segment (8-5) and Right Inboard eccentric segment (8-3) is contrary, described e1=e2=2.5mm or e1=e2=3mm, described front tamping equipment comprises front vibrating beam (16), the left front bearing that vibrates (7), the right front bearing that vibrates (10), the left front bearing support that vibrates (6) and the right front bearing support that vibrates (9), the described left front bearing support that vibrates (6) is socketed on left inside side eccentric segment (8-2) by the left front bearing that vibrates (7), the described right front bearing support that vibrates (9) is socketed on Right Inboard eccentric segment (8-3) by the right front bearing that vibrates (10), the described left front bearing support that vibrates (6) is all fixedly connected with front vibrating beam (16) by the first bolt (19-1) with the bottom of the right front bearing support that vibrates (9), described rear tamping equipment comprises rear vibrating beam (17), the left back bearing that vibrates (3), the right back bearing that vibrates (14), the left back bearing support that vibrates (2) and the right back bearing support that vibrates (13), the described left back bearing support that vibrates (2) is socketed on left-external side eccentric segment (8-4) by the left back bearing that vibrates (3), the described right back bearing support that vibrates (13) is socketed on right outside side eccentric segment (8-5) by the right back bearing that vibrates (14), the described left back bearing support that vibrates (2) is all fixedly connected with rear vibrating beam (17) by the second bolt (19-2) with the bottom of the right back bearing support that vibrates (13).
2. according to a kind of asphalt paver pair tamping equipment waiting stroke according to claim 1, it is characterized in that: described left fixed support portion divides and comprises left support bearing (5) and left support bearing support (4), described left support bearing support (4) is socketed on left side non-eccentricity section (8-6) by left support bearing (5); Described right fixed support portion divides and comprises right support bearing (12) and right support bearing support (11), described right support bearing support (11) be socketed in first by right support bearing (12) on the right side of in non-eccentricity section (8-7).
3. according to a kind of asphalt paver pair tamping equipment waiting stroke described in claim 1 or 2, it is characterized in that: described eccentric shaft also comprise be arranged on right outside side eccentric segment (8-5) right-hand member second on the right side of non-eccentricity section (8-8), on the right side of in the of described second, non-eccentricity section (8-8) is connected with right outside side eccentric segment (8-5).
4., according to a kind of asphalt paver pair tamping equipment waiting stroke according to claim 3, it is characterized in that: on the right side of described left-external side eccentric segment (8-4), left side non-eccentricity section (8-6), left inside side eccentric segment (8-2), center non-eccentricity section (8-1), Right Inboard eccentric segment (8-3), first, on the right side of non-eccentricity section (8-7), right outside side eccentric segment (8-5) and second, non-eccentricity section (8-8) is one-body molded.
5. according to a kind of asphalt paver pair tamping equipment waiting stroke described in claim 1 or 2, it is characterized in that: described left-external side eccentric segment (8-4) and right outside side eccentric segment (8-5) are symmetrical arranged, on the right side of described left side non-eccentricity section (8-6) and first, non-eccentricity section (8-7) is symmetrical arranged, and described left inside side eccentric segment (8-2) and Right Inboard eccentric segment (8-3) are symmetrical arranged.
6., according to a kind of asphalt paver pair tamping equipment waiting stroke described in claim 1 or 2, it is characterized in that: described front vibrating beam (16) and rear vibrating beam (17) be arranged in parallel.
CN201210208251.XA 2012-06-23 2012-06-23 A kind of asphalt paver pair tamping equipment waiting stroke Expired - Fee Related CN102720116B (en)

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104358206A (en) * 2014-10-29 2015-02-18 戴纳派克(中国)压实摊铺设备有限公司 Vibration bearing seat, vibration mechanism and screed
CN104929020B (en) * 2015-06-30 2017-01-18 戴纳派克(中国)压实摊铺设备有限公司 Dual vibrating mechanism provided with belt wheel, ironing plate and paver
CN104894951B (en) * 2015-06-30 2017-04-19 戴纳派克(中国)压实摊铺设备有限公司 Double vibrating mechanism with motor, ironing plate and paver

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Publication number Priority date Publication date Assignee Title
CN2479058Y (en) * 2001-04-27 2002-02-27 河南黄河旋风股份有限公司 Spreading and consolidating mechanism for cement concrete pavement spreading smoother
CN2844206Y (en) * 2005-05-10 2006-12-06 中外合资镇江华晨华通路面机械有限公司 Paver vibrator amplitude is determined mechanism
CN1982742A (en) * 2005-12-13 2007-06-20 王榕生 Dynamic balance driving mechanism with small tooth-differential planetary transmission
CN101649597A (en) * 2009-09-17 2010-02-17 长安大学 Vibrator for paver capable of controlling inertia force
CN202610691U (en) * 2012-06-23 2012-12-19 长安大学 Equal-stroke asphalt paver double-vibration device

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2479058Y (en) * 2001-04-27 2002-02-27 河南黄河旋风股份有限公司 Spreading and consolidating mechanism for cement concrete pavement spreading smoother
CN2844206Y (en) * 2005-05-10 2006-12-06 中外合资镇江华晨华通路面机械有限公司 Paver vibrator amplitude is determined mechanism
CN1982742A (en) * 2005-12-13 2007-06-20 王榕生 Dynamic balance driving mechanism with small tooth-differential planetary transmission
CN101649597A (en) * 2009-09-17 2010-02-17 长安大学 Vibrator for paver capable of controlling inertia force
CN202610691U (en) * 2012-06-23 2012-12-19 长安大学 Equal-stroke asphalt paver double-vibration device

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