CN203065936U - Vacuum impact combined type compaction device for asphalt pavement - Google Patents
Vacuum impact combined type compaction device for asphalt pavement Download PDFInfo
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- CN203065936U CN203065936U CN 201220746975 CN201220746975U CN203065936U CN 203065936 U CN203065936 U CN 203065936U CN 201220746975 CN201220746975 CN 201220746975 CN 201220746975 U CN201220746975 U CN 201220746975U CN 203065936 U CN203065936 U CN 203065936U
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- vacuum
- vacuum chamber
- rotating shaft
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Abstract
The utility model discloses a vacuum impact combined type compaction device for an asphalt pavement; the device comprises a pavement roller and a control panel arranged in a driving cab, wherein a vacuum chamber is arranged between front wheels and rear wheels of the pavement roller; the vacuum chamber is arranged under a stand of the pavement roller by a lifting device; a rotating shaft is arranged in the vacuum chamber along the longitudinal direction of a bodywork of the pavement roller; the rotating shaft is provided with a cam and a rotary sleeve; a push rod is arranged under the cam; a strike plate is welded at the lower end of the push rod; the push rod is connected on the rotary sleeve by a spring; the vacuum chamber is also provided with a vacuum pump and a motor; the motor is connected with the rotating shaft by a gear; and the motor, the vacuum pump and the lifting device are respectively connected with the control panel. Compared with the traditional pavement roller device, the vacuum impact combined type compaction device is high in rolling efficiency and good in compaction quality, shortens the construction time, and saves the construction cost.
Description
Technical field
The utility model relates to field of engineering technology, is specifically related to a kind of flexible pavement vacuum and impacts the combined type compaction apparatus.
Background technology
Asphalt concrete pavement has the performance of many excellences.The porosity of highway engineering medium pitch rigid pavement is generally 3～5%, and its porosity still has the space that reduces.The most important condition of compacting bituminous mixture is to apply necessary outer force and work, makes to be pressed the material internal particle to rearrange; Second condition pressed material must keep rock-steady structure in compacting process and " do not flowed " not under external force.At present the equipment that asphalt concrete pavement is carried out compacting mainly contains: rubber-tyred roller, quiet effect steel roller, double-steel wheeled vibratory roller etc., the domestic novel compacting equipments such as chaotic vibration road roller, oscillatory roller and intelligent pavement roller that also occurred in recent years.
Rubber-tyred roller is because the elasticity of rubber tyre makes that surface evenness can not get guaranteeing the roughness of surperficial undulate.Therefore, rubber-tyred roller is mainly used to flexible pavement is carried out multiple pressure or final pressure.
The weight that quiet effect steel roller increases road roller within the specific limits can improve degree of compaction, but surpasses certain limit, improves degree of compaction by gaining in weight and becomes difficult, can increase the complete machine energy consumption greatly on the contrary.Because static roller is less to being compacted the material plastic strain, thereby is the lower compacting machinary of a kind of efficient, is mainly used to flexible pavement is carried out first pressing.
Two steel wheels of double-steel wheeled vibratory roller contacts for " line " with flexible pavement, and this forms pusher, on the other hand the generation resilience of wheel back and micro-crack on the one hand with regard to making that compaction force is big and action time is shorter before wheel.Resilience has reduced compacting efficient, and steel wheel and asphalt road upper thread contact action time are shorter, is difficult to guarantee that air " extrudes " thoroughly, so be mainly used to flexible pavement is carried out multiple pressure or final pressure.
Novel compacting equipment such as chaotic vibration road roller have than the wideer vibration frequency band of single-frequency vibration, more violent velocity variations, thereby better consolidation effect is arranged, can improve 1.3～1.8 times of compacting effects in the identical time.This mainly is because under many vibration frequencies act on simultaneously near the dominant frequency, and the intergranular friction that all size differs significantly reduces, and presents flow regime and fills the space, thereby than the single-frequency vibration better vibrating effect is arranged.But, because chaotic vibration road roller technical sophistication, and the difficult measurement of each vibration parameters, also be at present in the theoretical research, be not put to production practices as yet.
Summary of the invention
Defective or deficiency at above-mentioned prior art existence, the purpose of this utility model is, provide a kind of flexible pavement vacuum to impact the combined type compaction apparatus, under vacuum condition, adopt the impact mode of the little amplitude of high frequency to carry out compacting to flexible pavement, improve the compaction quality that rolls the back flexible pavement, reduce the human and material resources cost.
For realizing above-mentioned technical assignment, the technical solution adopted in the utility model is:
A kind of flexible pavement vacuum is impacted the combined type compaction apparatus, comprise road roller and be installed in the interior control panel of driver's cabin, between the front-wheel of road roller and trailing wheel, be provided with vacuum chamber, vacuum chamber is installed in the frame below of road roller by lifting device, along the road roller vehicle body rotating shaft is installed vertically in the described vacuum chamber, cam and rotational sleeve are installed in the rotating shaft, the cam below is provided with push rod, the lower end of push rod is welded with shock plate, and push rod is connected on the rotational sleeve by spring; Vacuum pumping pump and motor also are installed on vacuum chamber, and motor is connected with described rotating shaft by gear, and described motor, vacuum pumping pump and lifting device all are connected to control panel.
Described vacuum chamber comprises the vacuum chamber framework, goes up sealing ring and lower seal, the hollow cuboid that described vacuum chamber framework is bottom-open, and the lower edge of vacuum chamber framework connects goes up sealing ring, and the lower edge of last sealing ring connects lower seal.
Described rotating shaft vertically evenly arranges two along the road roller vehicle body, rotating shaft is installed on the vacuum chamber framework by rolling bearing, 3 cams are installed in the rotating shaft wherein, 4 cams are installed in another root rotating shaft, first cam phase of same end differs 90 ° in two rotating shafts, and all the other cams in same rotating shaft all differ from 90 ° with adjacent cam phase.
Described lifting device adopts elevating ram.
The described sealing ring of going up adopts elastic seal ring.
Described lower seal adopts rubber seal.
Described road roller front-wheel adopts the quiet steel wheel that rolls, and trailing wheel adopts row rubber tyre arranged side by side.
Characteristics and the effect that the utlity model has are as follows:
Common road roller needs to adopt 3 types road roller to repeat road pavement in order to the flexible pavement compacting to carry out compacting at least; And adopt device only to need a compacting equipment to roll 2～3 times, can finish compacting operation 2～3 times with the double-steel wheeled vibratory roller compacting again.Therefore, compare with traditional pressure road device, the efficient height that rolls of the present utility model, compaction quality is good, shortens the engineering time, saves operating expenses.
Description of drawings
Fig. 1 is overall structure schematic diagram of the present utility model;
Fig. 2 is the mounting structure schematic diagram of the utility model cam, push rod and shock plate;
The implication of number in the figure: 1-road roller, 2-front-wheel, 3-vacuum pumping pump, 4-vacuum chamber framework, 5-lifting device, 6-shock plate, 7-push rod, 8-cam, 9-lower seal, the last sealing ring of 10-, 11-trailing wheel, 12-rotational sleeve, 13-rotating shaft, 14-spring;
Below by drawings and Examples, the utility model is described in further detail.
The specific embodiment
Defer to technique scheme, as shown in Figure 1, present embodiment provides a kind of flexible pavement vacuum and impacts the combined type compaction apparatus, comprise road roller 1 and be installed in the interior control panel of driver's cabin, between the front-wheel 2 of road roller 1 and trailing wheel 11, be provided with vacuum chamber, vacuum chamber is installed in the frame below of road roller 1 by lifting device 5, along road roller 1 vehicle body rotating shaft 13 is installed vertically in the described vacuum chamber, cam 8 and rotational sleeve 12 are installed in the rotating shaft 13, cam 8 belows are provided with push rod 7, the lower end of push rod 7 is welded with shock plate 6, and push rod 7 is connected on the rotational sleeve 12 by spring 14; Vacuum pumping pump 3 and motor also are installed on vacuum chamber, and motor is connected with described rotating shaft 13 by gear, and described motor, vacuum pumping pump 3 and lifting device 5 all are connected to control panel.
In the present embodiment, vacuum chamber is made up of vacuum chamber framework 4, last sealing ring 10 and lower seal 9, vacuum chamber framework 4 is the hollow cuboid of bottom-open, the lower edge of vacuum chamber framework 4 connects goes up sealing ring 10, the lower edge of last sealing ring 10 connects lower seal 9, wherein go up sealing ring 10 and adopt elastic seal ring, lower seal 9 adopts rubber seal.Vacuum chamber also links to each other with a vacuum pumping pump 3, and when pump was started working, flexible lower seal 9 can fit tightly to form a vacuum cavity with ground.
Further, rotating shaft 13 vertically evenly arranges two along the road roller vehicle body, i.e. rotating shaft 13 is parallel with the direction of advance of road roller 1; Rotating shaft 13 is by the motor-driven that is arranged in the vacuum chamber framework 4, rotating shaft 13 is installed on the vacuum chamber framework 4 by rolling bearing, 3 cams are installed in the rotating shaft wherein, 4 cams are installed in another root rotating shaft, and adjacent two cam phases in same rotating shaft are differed 90 °.Tangent what contact is a push rod 7 with each cam 8, and push rod 7 bottoms are welded with a shock plate 6, and push rod 7 is connected on the rotational sleeve 12, as shown in Figure 2 by a spring 14 with shock plate 6.
When adopting this device to carry out work, finish the construction operation of road foundation and basic unit earlier, the asphalt surface course that paves on the roadbase surface again adopts 1 pair of compacting road surface of this road roller to carry out compacting then, and concrete operations are:
This compacting equipment is travelled to the zone that needs operation, the control panel of operation driver's cabin the inside, regulating vacuum chamber lifting device 5 makes by vacuum chamber framework 4, goes up sealing ring 10 and open space that lower seal 9 is formed and move down up to lower seal 9 and closely contact with ground, form a closed area, and then open 3 pairs of these closed areas of vacuum pumping pump and vacuumize, until reach the vacuum value that needs and keep this state always; Next start and drive rotating shaft 13 motor rotating, drive rotating shaft 13 rotation at a high speed, and drive cam 8 rotation at a high speed thus, because cam 8 is tangent contacts with push rod 7, and push rod 7 links to each other with rotating shaft 13 with turnbarrel by a spring 14, so push rod 7 can be done under the promotion of cam 8 and pump, the shock plate 6 that is inconjunction with push rod 7 lower ends moves up and down, and broken height speed is not impacted the road surface.
Because 90 ° of the adjacent cams phase phasic differences in same rotating shaft 13, and first cam phase in two rotating shafts 13 also differs 90 °, thereby each shock plate 6 is the independent ground of impacting, and can not interfere the initiation covibration mutually.After shock plate 6 impacts ground and reaches predetermined time, close electric rotating machine and vacuum pumping pump 3, will move on the vacuum chamber framework 4, and steering vehicle is to next operating area, repeatedly road pavement is carried out shock compaction then.
Operating principle of the present utility model is as follows:
The front-wheel 2 of this device is a quiet steel wheel that rolls, and trailing wheel 11 is row's rubber tyre, is the vacuum impulse chamber in the middle of the two-wheeled.When road roller 1 travels to the working region, front-wheel 2 rolled the road surface, can certain compaction be arranged to bituminous mixture, and tentatively extrude gas inside, and each granular material is rearranged; Vacuum chamber drives to this top, zone then, vacuumizes the shock compaction of carrying out the little amplitude of high frequency again earlier, makes bituminous mixture internal gas active " overflowing " also further by closely knit; Last rubber tyre is sailed to the zone, road surface, reaches higher compactness by kneading action.Because through road surface and the out-of-flatness of overbump and kneading action, so adopt the double-steel wheeled vibratory roller road pavement to carry out compacting at last, under the vibration effect of opening and closing road roller, the road surface is rolled more smoothly.
Bituminous mixture under vacuum condition by shock compaction, its internal construction its main deformation process in by closely knit process is: the vacuum chamber of sealing is in the flexible pavement top, some microporous network of inside, road surface is placed under the vacuum chamber, and this has just destroyed the inner interactional gas, liquid, solid body three alternate unsettled dynamic balance relations of bituminous mixture; The pressure ratio atmospheric pressure of air duct is low in the supercrust, and the gas in the passage just moves towards the lower vacuum chamber of pressure.Simultaneously, the pressure differential that is enclosed in gas in gather materials intrapore gas pressure and the passage by asphalt film increases suddenly, asphalt film crack, the bubble admission passage of effusion and discharging; Go in the hole that this helps pitch to be filled under the effect of surface force to gather materials and the slit, pitch is evenly distributed again.Should also be noted that when gas passes supercrust and enters vacuum chamber that making gathers materials has produced translation and rotatablely move with respect to oneself equilbrium position, this helps the improvement of compound internal construction.Therefore, condition has all been created in the minimizing that exists for hole quantity and size of vacuum chamber, and this further provides very advantageous conditions for the compacting bituminous mixture.After the vacuum value of vacuum chamber reached requirements, shock plate 6 began to impact the road surface, and this forces bituminous mixture inside to gather materials again to rearrange under the percussion of the little amplitude of high frequency, and constantly gets rid of inner remaining gas.Under the double action of vacuum and impact, be in flexible pavement under the vacuum chamber constantly by closely knit, until meeting the requirements of degree of compaction.Certainly, vacuumize and impact two operations and both can take place simultaneously, also can vacuumize earlier and impact operation again.
Claims (7)
1. a flexible pavement vacuum is impacted the combined type compaction apparatus, comprise road roller (1) and be installed in the interior control panel of driver's cabin, between the front-wheel (2) of road roller (1) and trailing wheel (11), be provided with vacuum chamber, vacuum chamber is installed in the frame below of road roller (1) by lifting device (5), it is characterized in that, along road roller (1) vehicle body rotating shaft (13) is installed vertically in the described vacuum chamber, cam (8) and rotational sleeve (12) are installed in the rotating shaft (13), cam (8) below is provided with push rod (7), the lower end of push rod (7) is welded with shock plate (6), and push rod (7) is connected on the rotational sleeve (12) by spring (14); Vacuum pumping pump (3) and motor also are installed on vacuum chamber, and motor is connected with described rotating shaft (13) by gear, and described motor, vacuum pumping pump (3) and lifting device (5) all are connected to control panel.
2. flexible pavement vacuum as claimed in claim 1 is impacted the combined type compaction apparatus, it is characterized in that, described vacuum chamber comprises vacuum chamber framework (4), goes up sealing ring (10) and lower seal (9), described vacuum chamber framework (4) is the hollow cuboid of bottom-open, the lower edge of vacuum chamber framework (4) connects goes up sealing ring (10), and the lower edge of last sealing ring (10) connects lower seal (9).
3. flexible pavement vacuum as claimed in claim 1 is impacted the combined type compaction apparatus, it is characterized in that, described rotating shaft (13) vertically evenly arranges two along the vehicle body of road roller (1), rotating shaft (13) is installed on the vacuum chamber framework (4) by rolling bearing, 3 cams are installed in the rotating shaft wherein, 4 cams are installed in another root rotating shaft, first cam phase of same end differs 90 ° in two rotating shafts, and all the other cams in same rotating shaft all differ from 90 ° with adjacent cam phase.
4. flexible pavement vacuum as claimed in claim 1 is impacted the combined type compaction apparatus, it is characterized in that, described lifting device (5) adopts elevating ram.
5. flexible pavement vacuum as claimed in claim 2 is impacted the combined type compaction apparatus, it is characterized in that, the described sealing ring (10) of going up adopts elastic seal ring.
6. flexible pavement vacuum as claimed in claim 2 is impacted the combined type compaction apparatus, it is characterized in that, described lower seal (9) adopts rubber seal.
7. flexible pavement vacuum as claimed in claim 1 is impacted the combined type compaction apparatus, it is characterized in that, the front-wheel (2) of described road roller (1) adopts the quiet steel wheel that rolls, and trailing wheel (11) adopts row rubber tyre arranged side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220746975 CN203065936U (en) | 2012-12-28 | 2012-12-28 | Vacuum impact combined type compaction device for asphalt pavement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220746975 CN203065936U (en) | 2012-12-28 | 2012-12-28 | Vacuum impact combined type compaction device for asphalt pavement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203065936U true CN203065936U (en) | 2013-07-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220746975 Expired - Fee Related CN203065936U (en) | 2012-12-28 | 2012-12-28 | Vacuum impact combined type compaction device for asphalt pavement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203065936U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274927A (en) * | 2015-10-28 | 2016-01-27 | 林蓉瑶 | Road roller for rolling and compacting roads |
| CN109914214A (en) * | 2019-04-12 | 2019-06-21 | 张中元 | A kind of road reconstruction method and apparatus for construction of the highway |
| CN111155398A (en) * | 2020-01-05 | 2020-05-15 | 田亥心 | Highway construction is with flat native compaction device |
-
2012
- 2012-12-28 CN CN 201220746975 patent/CN203065936U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105274927A (en) * | 2015-10-28 | 2016-01-27 | 林蓉瑶 | Road roller for rolling and compacting roads |
| CN109914214A (en) * | 2019-04-12 | 2019-06-21 | 张中元 | A kind of road reconstruction method and apparatus for construction of the highway |
| CN109914214B (en) * | 2019-04-12 | 2020-06-26 | 张中元 | Road surface reconstruction method and equipment for highway construction |
| CN111155398A (en) * | 2020-01-05 | 2020-05-15 | 田亥心 | Highway construction is with flat native compaction device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130717 Termination date: 20151228 |
|
| EXPY | Termination of patent right or utility model |