CN110029614A - The suspended hood cleaned for expressway - Google Patents
The suspended hood cleaned for expressway Download PDFInfo
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- CN110029614A CN110029614A CN201910406722.XA CN201910406722A CN110029614A CN 110029614 A CN110029614 A CN 110029614A CN 201910406722 A CN201910406722 A CN 201910406722A CN 110029614 A CN110029614 A CN 110029614A
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- cover
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- pressure gas
- arc
- seat
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- 238000004140 cleaning Methods 0.000 claims abstract description 20
- 230000001105 regulatory effect Effects 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 13
- 239000007921 spray Substances 0.000 claims description 11
- 238000009423 ventilation Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 5
- 238000003466 welding Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 238000002955 isolation Methods 0.000 claims description 3
- 238000013016 damping Methods 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 230000001914 calming effect Effects 0.000 claims 1
- 239000011538 cleaning material Substances 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 9
- 239000010813 municipal solid waste Substances 0.000 description 22
- 238000010586 diagram Methods 0.000 description 13
- 238000010408 sweeping Methods 0.000 description 8
- 230000000149 penetrating effect Effects 0.000 description 7
- 241001417527 Pempheridae Species 0.000 description 6
- 230000010355 oscillation Effects 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
- E01H1/08—Pneumatically dislodging or taking-up undesirable matter or small objects; Drying by heat only or by streams of gas; Cleaning by projecting abrasive particles
- E01H1/0827—Dislodging by suction; Mechanical dislodging-cleaning apparatus with independent or dependent exhaust, e.g. dislodging-sweeping machines with independent suction nozzles ; Mechanical loosening devices working under vacuum
- E01H1/0836—Apparatus dislodging all of the dirt by suction ; Suction nozzles
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a kind of suspended hoods cleaned for expressway, the bleed-off passage of exhausting system is installed on covering on top, shock-absorbing support wheel assembly is separately installed at left and right sides of the front end of cover and at left and right sides of rear end, enable cover independent ambulation in ground, the front end fixed traction seat of cover is simultaneously connect with vehicle traction position, rear end inside cover is equipped with road cleaning rotary wind mechanism, the present invention can be applied to highway cleaning work, can satisfy and effectively cleans road surface under conditions of vehicle high-speed form.Along rotating clockwise, each air knife successively rotates from bottom to top for high pressure gas roller, when air knife smaller angle can high-pressure blast and ground face contact form air knife reflecting surface, ground attachment can be scooped up, with high pressure gas roller high-speed rotation, air knife, which is blown, penetrates face fast upward motion, to reach the cleaning material effect of lifting.
Description
Technical field
The invention belongs to expressway garbage sweeping technical fields, and in particular to a kind of air draught cleaned for expressway
Cover.
Background technique
Because of pavement garbage, meeting caused by falling object or shedding object or the factors such as toy corpse or explosion wheel body on expressway
Very big security risk is brought to the vehicle run at high speed, it is clear to be suitable for highway rubbish currently without a kind of refuse cleaning vehicle
Reason.Currently, artificial, heavy workload, low efficiency are relied primarily on to the cleaning of highway rubbish, and risk factors are high, part high speed
Although highway uses small-sized cleaning and assists vehicle, it is mainly used for refuse collection, as auxiliary tool and does not have expressway
The function of refuse sweeping, and clear trolley and be generally in edge area very narrow on the inside of fast traffic lane, or obstructed by cone,
Or can be travelled across sideline, also very big security risk can be brought to the vehicle run at high speed.
Tradition is garbage cleaning vehicle by rotational head, using the cleaning method of rotational head and ground face contact, is only suitable for
Low speed operation cleans, and can not be applied to running on expressway and the use of 60KM/ hours or more rate request, conventional brush hair style
Suspended hood sweeping efficiency is lower, experiments have shown that when vehicle high-speed operation when can not clean thoroughly, and high vehicle speeds be as
Fruit remains head contacts ground, and the service life of brush head greatly shortens, and abrasion is scrapped quickly.Strong for ground adherency is miscellaneous
Object and the larger heavier sundries of volume, brush head formula sweeper can not be cleared up effectively.
Summary of the invention
The present invention lacks the garbage cleaning vehicle problem for meeting speed type for current highway and conventional garbage is clear
It manages out and is generally only used for low speed form and rotational head is prone to wear problem, a kind of air draught cleaned for expressway is provided
Cover can satisfy and effectively clean road surface under conditions of vehicle high-speed form, is suitable for expressway garbage sweeping and uses.
The present invention solve scheme used by its technical problem first is that: it is a kind of for expressway clean high pressure gas roll-type inhale
Fan housing, cover and exhausting system including lower ending opening, the bleed-off passage of exhausting system are installed on covering on top, the front end of cover
It is separately installed with shock-absorbing support wheel assembly at left and right sides of the left and right sides and rear end, enables cover independent ambulation in ground, respectively subtracts
Bottom opening and ground is kept to keep controllable spacing d after shaking support wheel modular support cover, the front end fixed traction seat of cover is simultaneously
It is connect with vehicle traction position, the rear end inside cover is equipped with road cleaning rotary wind mechanism, the rotary wind machine
Structure includes high pressure gas roller, and high-pressure air pipe is connected in the hollow cavity of high pressure gas roller, is circumferentially uniformly divided in high pressure gas roller side
It is furnished with the air knife mouth parallel with axial direction, matching is set with semiclosed arc-shaped cover on the outside of high pressure gas roller, and high pressure gas roller both ends pass through
Bearing is mounted in bearing block, and bearing block is installed in the axis hole of semiclosed arc-shaped cover two sides end plate, semiclosed arc-shaped cover installation
In fixing seat, a lateral edge of semiclosed arc-shaped cover axially offers mouth as wafter is gone out in parallel, meets at least two groups of wind
The edge of a knife is located in wafter region simultaneously, is outlet air unit, and the air knife mouth being located in semiclosed arc-shaped cover is by semiclosed arc
Cover blocks not outlet air, and an end wall center of high pressure gas roller connects hollow rotating shaft, and hollow rotating shaft end extends outlet axis, gas sealing
It is set in rotary sleeve, high-pressure air pipe is connected in rotary sleeve and is connected to the cavity of hollow rotating shaft, the other end of high pressure gas roller
Wall center connects solid spindle, and hollow rotating shaft and solid spindle are set in the bearing, high pressure gas roller driven-mechanism
Its axial lasting rotation of drives edge.
The driving mechanism is to be equipped with driven wheel in the end of solid spindle, and the shaft of driving motor is equipped with actively
Wheel, driving wheel and driven wheel are sequentially connected.
The driving mechanism is that annular groove is circumferentially distributed with as ventilation slot, in ventilation slot in high pressure gas roller side
It is inside tangentially provided with tangential hole, tangential spray head is installed in tangential hole, the air knife mouth is vented slot isolation or air knife mouth
It is interspersed with ventilation slot.
It is provided with the traversing traversing regulating mechanism of driving traction seat.Traversing regulating mechanism first is that being set in traction seat two sidewalls
Axis placing hole is simultaneously equipped with long axis, and long axis outer sheath is equipped with casing, and draw bar is vertical with casing to be fixedly connected, and casing side is fixed with
Block machine, one end is fixed with electric pushrod in traction seat, and the pusher portion of electric pushrod presses against block machine side, on the long axis
One end far from electric pushrod is set with spring, and spring supporting is between casing and traction seat side wall.
The shock-absorbing support wheel assembly includes the support being fixed on cover lateral wall, is vertically fixed with casing on support,
It is set with screw rod in casing, is located at casing upper and lower side on screw rod and is separately installed with height adjustment nut, screw rod bottom, which is equipped with, to be subtracted
Device is shaken, damper bottom connects traveling wheel.
Matching is set with arc-shaped seat on the outside of semiclosed arc-shaped cover, and convex-concave structure is matched between semiclosed arc-shaped cover and arc-shaped seat
Conjunction is entrenched togather, and the angle for adjusting semiclosed arc-shaped cover can be rotated after semiclosed arc-shaped cover is detached from convex-concave structure
Degree；The arc-shaped seat direct or indirect connection fixing seat.Welding socket in fixing seat is set with stretching screw in pipe sleeve, tenses
The both ends of screw rod are threaded with locking silk, and connecting screw is fixed together with the arc-shaped seat.
The fixing seat matching clamps the semiclosed arc-shaped cover, and jackscrew is equipped in fixing seat and is sealed for holding out against connection half
Arc-shaped cover is closed, semiclosed arc-shaped cover can be rotated after unclamping jackscrew.
The present invention solve scheme used by its technical problem second is that: it is a kind of for expressway clean adjustable-angle inhale
Fan housing, cover and exhausting system including lower ending opening, the bleed-off passage of exhausting system are installed on covering on top, the front end of cover
It is separately installed with shock-absorbing support wheel assembly at left and right sides of the left and right sides and rear end, enables cover independent ambulation in ground, respectively subtracts
Bottom opening and ground is kept to keep controllable spacing d after shaking support wheel modular support cover, the front end fixed traction seat of cover is simultaneously
It is connect with vehicle traction position, the rear end inside cover is equipped with the air knife component of adjustable angle, transversely sets on the component
It is equipped with a series of high-pressure nozzles and constitutes high-pressure nozzle row, the gas seat that connects that each high-pressure nozzle passes through its rear end respectively connects high pressure gas
Pipe.
The air knife component of the adjustable angle includes wobble plate, and wobble plate lower end is hinged on attachment base by shaft, wobble plate
Upper end transverse direction solid welding has cylindrical sleeve, and matching is set with cylindrical body in cylindrical sleeve, has been disposed radially tapped through hole in the middle part of cylindrical body,
Screw rod is installed, screw rod is fixedly connected with stepping motor rotating shaft, is evenly distributed in the wobble plate a series of in tapped through hole
High-pressure nozzle constitutes high-pressure nozzle row, and the gas seat that connects that each high-pressure nozzle passes through its rear end respectively connects high-pressure air pipe.
It is provided with the traversing traversing regulating mechanism of driving traction seat.Traversing regulating mechanism first is that being set in traction seat two sidewalls
Axis placing hole is simultaneously equipped with long axis, and long axis outer sheath is equipped with casing, and draw bar is vertical with casing to be fixedly connected, and casing side is fixed with
Block machine, one end is fixed with electric pushrod in traction seat, and the pusher portion of electric pushrod presses against block machine side, on the long axis
One end far from electric pushrod is set with spring, and spring supporting is between casing and traction seat side wall.
The shock-absorbing support wheel assembly includes the support being fixed on cover lateral wall, is vertically fixed with casing on support,
It is set with screw rod in casing, is located at casing upper and lower side on screw rod and is separately installed with height adjustment nut, screw rod bottom, which is equipped with, to be subtracted
Device is shaken, damper bottom connects traveling wheel.
Beneficial effects of the present invention: 1. present invention can be applied to highway cleaning work, in conjunction with existing sweeper
Or the suspended hood is installed after the dedicated cleaning vehicle of setting, it can satisfy and effectively clean road surface under conditions of vehicle high-speed form.This
Invention suspended hood is independently of car body, so as to control holding and ground there are gap and gap is adjustable reaches cover and connect with ground
Close but discontiguous state utilizes raising pick-up performance.Air knife and air draft passage inside cover realize in suspended hood
Portion's circulation, there are lesser spacing d between suspended hood and ground, can be realized atmospheric pressure compensating, so the feature of environmental protection is very strong,
Whether do not will cause dust pollution question, it is ensured that its normal use always if sprinkling water.
2. the present invention is trailed while having the function of transverse translation, oscillation graticule can be effectively avoided, when avoiding its long
Between when operating in oscillation graticule because high-frequency vibration damages its internal each important component.Electric pushrod can be carried out by driver's cabin
Control, and then the lateral adjustments of cover are controlled, its damage is avoided, its service life is improved.
3. each air knife successively rotates from bottom to top as high pressure gas roller is along rotating clockwise in the present invention program, air knife compared with
Meeting high-pressure blast and ground face contact form air knife reflecting surface when low-angle, can scoop up ground attachment, as high pressure gas roller is high
Speed rotation, air knife, which is blown, penetrates face fast upward motion, and to reach the cleaning material effect of lifting, slubbing air knife blows the face of penetrating and lifts cleaning material
Second, third road air knife blow the face of penetrating and successively follow up constant lifting cleaning material quickly afterwards, and cleaning material is pushed close to exhausting
Pipeline opening is sucked away, is reached by the transmitting of high pressure air blowing to exhausting.
Detailed description of the invention
Fig. 1 is the schematic perspective view of product of the present invention.
Fig. 2 is the schematic diagram of internal structure of Fig. 1.
Fig. 3 is Fig. 2 mesohigh gas roller assembling structure schematic diagram.
Fig. 4 is Fig. 2 mesohigh gas roller cross section structure schematic diagram.
Fig. 5 is Fig. 4 mesohigh gas roller assembly vertical section (A-A section) structural schematic diagram.
Fig. 6 is the surface structure schematic diagram of Fig. 5 mesohigh gas roller.
Fig. 7 is another high pressure gas roller vertical section structure schematic diagram.
Fig. 8 is the surface structure schematic diagram of Fig. 7 mesohigh gas roller.
Fig. 9 is that air knife moves towards schematic diagram.
Figure 10 is the structural schematic diagram of traction adjustment mechanism in Fig. 1.
Figure 11 is the schematic diagram of internal structure of another product of the invention.
Figure 12 is partial enlargement structural representation in Figure 11.
Figure 13 is cylindricality cover and cylindrical body assembling schematic diagram in investment 12.
Figure 14 is a kind of application state schematic diagram of the invention.
Figure 15 is the structural schematic diagram of cover installation arc deflector.
Figure label: 1 is cover, and 2 be support, and 3 be traveling wheel, and 4 be damper, and 5 be casing, and 6 be height adjustment nut,
7 be traction seat, and 8 be draw bar, and 9 be long axis, and 10 be inner frame, and 11 be semiclosed arc-shaped cover, and 12 be fixing seat, and 13 be high pressure gas
Roller, 14 be radial hole, and 15 be high-pressure nozzle, and 16 be arc sealant, and 17 be end plate one, and 18 be end plate two, and 19 be end bearing, 20
It is solid spindle for hollow rotating shaft, 21,22 be rotary sleeve, and 23 be high-pressure air pipe, and 24 be inner bearing, and 25 be sealing ring, and 26 be gas
Axis, 27 be cavity, and 28 be high pressure air cleft, and 32 be bleed-off passage, and 33 be deck, and 34 be electric pushrod, and 35 be pusher portion, and 36 are
Casing, 37 be block machine, and 38 be spring, and 39 be attachment base, and 40 be wobble plate, and 41 be shaft, and 42 be cylindrical sleeve, and 43 be cylindrical body, 44
It is screw rod for stepper motor, 45,46 arrange for high-pressure nozzle, and 47 blow the face of penetrating to connect gas seat, 48 for air knife, and 49 be air knife reflecting surface,
50 be gear shaft terminal, and 51 be driven gear, and 52 be driving gear, and 53 be annular rubber ring, and 54 be closing Trash cache case, and 55 are
Vacuum pump, 56 be filter mantle, and 57 be regular garbage emission mouth, and 58 be high-pressure pump, and 64 be jackscrew, and 65 is go out wafter, and 67 be arc
Shape deflector, 68 be striker plate.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples.
Embodiment 1: the first is used for the high pressure gas roll-type suspended hood that expressway cleans, and appearance is as depicted in figs. 1 and 2,
The lower section of cover 1 is cuboid, and upper section is square cone body, contains the structural strength for improving cover 1 of inner frame 10 in cover 1.
1 top of cover is installed on positioned at 32 end of bleed-off passage of car body (sweeper) exhausting system.Exhausting system uses current road
Sweeper exhausting system needs running speed high, so can be in traditional exhausting since the present embodiment is cleaned for expressway
The caliber of intensified negative pressure wind pressure and bleed-off passage 32 in the system integration, to improve sweeping efficiency.The present embodiment can be used such as Figure 14
Shown in system model, vacuum pump 55 is installed at the top of closing Trash cache case 54, and the exhaust column of vacuum pump 55 is protruded into envelope
It closes in Trash cache case 54, and filter mantle 56 is set in exhausting nozzle, bleed-off passage is drawn in the upper end of closing Trash cache case 54
It is connected after 32 at the top of cover 1, the regular garbage emission mouth 57 of closing 54 bottom of Trash cache case setting is usually closed, and works as envelope
Closing garbage storing storage in Trash cache case 54 and opening regular garbage emission mouth 57 after reaching a certain level makes rubbish be discharged into interior rubbish
Rubbish case or the outer dustbin of vehicle.
Relative to the suspended hood of tradition ground connection rotary-brush type, the present invention claims the cleaning units in suspended hood to connect with ground
Touching enables cover 1 so being separately installed with shock-absorbing support wheel assembly at left and right sides of the front end of cover 1 and at left and right sides of rear end
Enough independent ambulations are in ground.Moreover, bottom opening and ground are kept after being able to maintain each shock-absorbing support wheel assembly support cover 1
There is spacing d, and spacing d is adjustable, reach appropriate choke effect, i.e., is evacuated by the air knife exhaust in cover 1 with pump-line real
When existing inner air circulation, external air flow can enter from spacing d carries out atmospheric pressure compensating in suspended hood, be beneficial to prevent dust and leak.
The settable one layer of annular rubber ring 53 in 1 bottom of cover is used for 1 edge of protective enclosure when the degree of jolting is larger, prevents 1 side of cover
Colliding with and deforming occur in edge, and influences its choke effect.
Each shock-absorbing support wheel assembly includes the support 2 being fixed on 1 lateral wall of cover it can be seen from Fig. 1 and Fig. 2,
It is vertically fixed with casing 5 on support 2, screw rod is set in casing 5, screw rod can slide in casing 5.But it is located on screw rod
5 top and bottom of casing are separately installed with height adjustment nut 6, and screw rod is fixed on casing 5 by adjusting nut.Again in spiral shell
Bar bottom is equipped with damper 4, and 4 bottom of damper connects traveling wheel 3.To, when which is moved ahead by traction, each damping branch
Support wheel assembly is capable of providing shock-absorbing function.
The present embodiment uses hitch structure as depicted in figs. 1 and 2.Cover 1 is not directly anchored to below car body,
But it is connect in the front end fixed traction seat 7 of cover 1 and with vehicle traction position.Further, the present embodiment is provided with drive again
The traversing traversing regulating mechanism of dynamic traction seat 7.As shown in Figure 10, a kind of form of traversing regulating mechanism is in 7 two sides of traction seat
Wall setting axis hole is simultaneously equipped with long axis 9, and 9 outer sheath of long axis is equipped with casing 36, and draw bar 8 is vertical with casing 36 to be fixedly connected.Set
36 side of pipe is fixed with block machine 37, and one end, which is arranged deck 33 and fixes, in traction seat 7 electric pushrod 34, and electric pushrod 34 pushes away
Bar part 35 presses against 37 side of block machine.One end on long axis 9 far from electric pushrod 34 is set with spring 38 again, and 38, spring
Support is between 7 side wall of casing 36 and traction seat.To casing 36 be pushed mobile, i.e., after controlling the stretching of electric pushrod 34
It keeps cover 1 transverse shifting occur relative to draw bar 8, after controlling electric putter contraction, cover 1 can be controlled along Xiang Fanfang
To transverse shifting.The present embodiment cover 1 is arranged the purpose of traversing regulating mechanism, is to prevent from inhaling cleaning vehicle in operation to high speed
When the left or right side of road, the shock-absorbing support wheel group of 1 surrounding of cover is easy to roll that (dot bulge sideline is dotted recessed in oscillation graticule
Sideline is fallen into, since the traveling wheel 3 of cover 1 is smaller, encountering oscillation graticule will appear high-frequency vibration, and long-play can be quickly damaged
Its internal each important component).Electric pushrod 34 is controlled by driver's cabin, so as to pass through traversing regulating mechanism control cover
The lateral adjustments of body 1 avoid its damage, improve its service life.
Traversing regulating mechanism can also have other forms, when guaranteeing above-mentioned essential structure and control 1 traverse moving function of cover,
Such as can use stepper motor substitution electric pushrod 34, screw hole is arranged on baffle platform, the spiral shell in stepping motor rotating shaft connecting screw
Bar is threadedly connected in screw hole, and block machine 37 can be driven after stepper motor rotation and then drives casing axial movement.And may be used also
It realizes, is not described in detail in a manner of using electromagnetism telescopic rod.
As shown in Fig. 2, the rear end inside cover 1 is equipped with road cleaning rotary wind mechanism, the rotary wind machine
Structure includes high pressure gas roller 13, semiclosed arc-shaped cover 11 and fixing seat 12 and rotary sleeve 22 and driving mechanism etc..
As shown in figure 14, the outlet of high-pressure pump 58 in compartment passes through the high pressure of high-pressure air pipe 23 and rotary wind mechanism
The connection of 13 hollow cavity 27 of gas roller.Semiclosed arc-shaped cover matching is sleeved on the outside of high pressure gas roller, but the side of semiclosed arc-shaped cover 11
Mouth is offered in parallel along axial direction as wafter 65 out, and one layer of arc is set between semiclosed arc-shaped cover 11 and high pressure gas roller
Sealant directly blocks each when not giving up high-pressure nozzle into each high-pressure nozzle 15(on the inside of semiclosed arc-shaped cover 11 for blocking
Radial hole).
As shown in figures 3 to 6, a plurality of air knife mouth, every air knife mouth point are circumferentially uniformly distributed in 13 side of high pressure gas roller
Not parallel with axial direction, every air knife mouth is as shown in Figure 5 and Figure 6 by multiple 15 groups of equally distributed high-pressure nozzles in the present embodiment
At (figure mesohigh spray head 15 is than actual picture ratio greatly in order to showing its construction).From figs. 5 and 6, it can be seen that in high pressure
Radially drilling forms radial hole 14 on 13 circumferential side wall of gas roller, assembles corresponding high-pressure nozzle for matching as mounting hole
15.Since multiple high-pressure nozzles 15 of every air knife are along arranged in a straight line, so foring after carrying out high-pressure jet simultaneously such as Fig. 9 institute
The air knife stated blows the face of penetrating 48 and air knife reflecting surface 49, and as high pressure gas roller 13 is along rotating clockwise, each air knife is successively from bottom to top
Rotation, when air knife smaller angle can high-pressure blast and ground face contact form air knife reflecting surface 49, ground attachment can be scooped up, with
13 high-speed rotation of high pressure gas roller, air knife blow 48 fast upward motion of the face of penetrating, to reach the cleaning material effect of lifting, slubbing air knife
It blows the face of penetrating 48 and lifts after cleaning material second, third road air knife quickly and blow the face of penetrating 48 and successively follow up constant lifting cleaning material,
Cleaning material is pushed and is sucked away close to exhaust column road junction, is reached by the transmitting of high pressure air blowing to exhausting.Further, in cover
Front interior in 1 is equipped with arc deflector 67 as shown in figure 15, and is tiltedly installed in the rear side of bleed-off passage 32
Striker plate 68, using arc deflector 67 and striker plate 68 can fast lifting cleaning material to pump orifice, improve using effect
Fruit and sweeping efficiency.Air draft passage can also be extended into cover 1, to reduce suction open height.
Matching is set with semiclosed arc-shaped cover 11 on the outside of high pressure gas roller 13 it can be seen from Fig. 3 and Fig. 4, can be with by Fig. 5
Find out, 13 both ends of high pressure gas roller are mounted in bearing block by end bearing 19, and bearing block is installed on semiclosed 11 two sides of arc-shaped cover
In the axis hole of end plate (end plate 1 and end plate 2 18), semiclosed arc-shaped cover 11 is mounted in fixing seat 12.
As shown in Figure 3 and Figure 4, a lateral edge of semiclosed arc-shaped cover 11 axially offers mouth in parallel and is used as wafter 65,
Satisfaction has three groups of air knife mouths while being located in wafter region, i.e., no matter how high pressure gas roller 13 rotates, and has three groups of air knives always
In wafter 65 out, as outlet air unit.And it is located at the air knife mouth in semiclosed arc-shaped cover 11 by semiclosed arc-shaped cover 11
Not outlet air is blocked, as wind sheltering unit.
As shown in Fig. 5 or Fig. 7, an end wall center of high pressure gas roller 13 connects hollow rotating shaft 20, and 20 end of hollow rotating shaft is prolonged
Gas axis 26 is stretched out, by inner bearing 24 and 25 sealing shroud of sealing ring loaded in rotary sleeve 22, high-pressure air pipe 23 is connected to gas axis 26
It is connected in rotary sleeve 22 and with the cavity of hollow rotating shaft 20, another end wall center of high pressure gas roller 13 connects solid spindle 21, empty
Heart shaft 20 and solid spindle 21 are set in the bearing, its axial direction of 13 driven-mechanism drives edge of high pressure gas roller continues
Rotation.
As shown in Figure 3 and Figure 7, driving mechanism is to be equipped with driven tooth on the end of solid spindle 21 i.e. gear shaft terminal 50
Wheel 51, the shaft of driving motor are equipped with driving gear 52, and driving gear 52 and driven gear 51 are sequentially connected.
The function that the present embodiment can reach has three as described above, when 13 high speed of high pressure gas roller rotates clockwise always
A air knife is located at 65 region of wafter, and per pass air knife quickly moves from bottom to top, and no sooner has one fallen than another steps into the breach constantly recycles, can be effective
Ground attachment is scooped up and is raised near pump orifice by ground, and cleaning speed is fast, high-efficient.Tradition passes through rotational head and ground
The cleaning method of contact is only suitable for low speed operation, can not be applied to the highway of 60KM/ hours or more speed, traditional brush head
Formula suspended hood a series of problems, such as there are sweeping efficiency is lower and wear block.The present embodiment, which is suitable for highway fast sweep, to be made
With providing cleaning instrument for highway ground, when it is used in common street, sweeping efficiency and effect are also obviously due to general
Logical brush head formula sweeper.As it can be seen that the air knife and air draft passage that are located inside cover 1 in the present embodiment are realized and are followed inside suspended hood
Ring can be realized atmospheric pressure compensating there are lesser spacing d between cover 1 and ground, so the feature of environmental protection is very strong, if
Watering not will cause dust pollution question, it is ensured that its normal use always.
Embodiment 2: second is used for the high pressure gas roll-type suspended hood that expressway cleans, for semiclosed arc in embodiment 1
What is formed between shape cover 11 and high pressure gas roller 13 goes out 65 regional structure of wafter, this implementation can be adjusted out on the basis of implementing 1
65 region of wafter towards angle.Control semiclosed arc-shaped cover 11 appropriateness rotation can control covering of the fan region towards angle
Degree realizes best cleaning effect so as to adjust according to different road conditions.The present embodiment is using structure as shown in Figure 3 and Figure 4
Make realization.In figs. 3 and 4, semiclosed arc-shaped cover 11 is clamped using the matching of fixing seat 12, and is vertically set in fixing seat 12
It sets screw hole and jackscrew 64 is installed, jackscrew 64 can incite somebody to action after holding out against adjusting for holding out against the semiclosed arc-shaped cover 11 of connection, jackscrew 64
Fixing seat 12 is fixed as one with semiclosed arc-shaped cover 11, can rotate semiclosed half envelope of the progress of arc-shaped cover 11 after unclamping jackscrew 64
Close the angular adjustment of arc-shaped cover 11.
Embodiment 3: the third is used for the high pressure gas roll-type suspended hood that expressway cleans, on that basis of example 1, driving machine
Structure is different, and the present embodiment is abandoned using the kinds of drive such as motor and gear or belt pulley, but using high pressure draught as driving
Specifically annular groove is circumferentially distributed with as ventilation slot, in ventilation slot tangentially in 13 side of high pressure gas roller in mechanism
It is provided with tangential hole, tangential spray head is installed in tangential hole, the air knife mouth is vented slot isolation or air knife mouth and ventilation slot
It is interspersed.The air knife difference formed is combined with high-pressure nozzle 15 described in embodiment 1, high-pressure nozzle 15 is radially (normal)
I.e. airflow direction vertically with semiclosed 11 inner wall of arc-shaped cover, so rotary power will not be brought to high pressure gas roller 13.But this implementation
Example is blown by the direction that air-flow can be approached tangent line by tangential spray head hits semiclosed 11 inner wall of arc-shaped cover, and air-flow can be from ring
It is discharged in connected in star, continues tangent line air-flow to realize, can blow can when hitting semiclosed arc-shaped cover 11 so continuing tangential gas flow
It causes high pressure gas roller 13 to rotate under reaction, reaches driving high pressure gas roller 13 and rotate purpose.13 rotation speed of high pressure gas roller by
High pressure level and tangential spray head spray tolerance and influence, after controlling the ejection tolerance of tangential spray head, the rotation speed of high pressure gas roller 13
Degree, which can also control, reaches optimal use state.The air-flow of tangential spray head moves towards discharge along annular groove, and tolerance is effective, substantially
Air knife will not be interfered.Obviously, the present embodiment can be further simplified the structure and cost of cover 1.
4: the four kinds of the embodiment high pressure gas roll-type suspended hoods cleaned for expressway, on that basis of example 1, using such as
Fig. 7 and air knife form shown in Fig. 8 are located at the uniformly distributed multiple tracks air knife of 13 circumferential side wall of high pressure gas roller, are some column edges respectively
The prolate high pressure air cleft 28 of bus, the high pressure draught being discharged from high pressure air cleft 28 are more likely formed air knife.
Embodiment 5: a kind of adjustable-angle suspended hood cleaned for expressway, cover 1 and exhausting system including lower ending opening
System, the present embodiment suspended hood can be applied in combination with the existing refuse cleaning vehicle containing exhausting system, when use the present embodiment air draught
After cover substitutes the existing suspended hood with rotational head, it is able to drive using effect required by the present embodiment.
The exhausting system of conventional garbage sweeper is generally arranged in compartment, and the bleed-off passage 32 of exhausting system is installed on
1 top of cover.
Shock-absorbing support wheel group is separately installed at left and right sides of the front end of cover 1 and at left and right sides of rear end in the present embodiment
Part, to enable 1 independent ambulation of cover in ground.And it can controllably realize each shock-absorbing support wheel assembly support cover
Bottom opening and ground is kept to keep controllable spacing d after 1.
As shown in figure 11, the shock-absorbing support wheel assembly of setting includes the support 2 being fixed on 1 lateral wall of cover, on support 2
It is vertically fixed with casing 5, screw rod is set in casing 5, is located at 5 upper and lower side of casing on screw rod and is separately installed with height adjustment nut
6, screw rod bottom is equipped with damper 4, and 4 bottom of damper connects traveling wheel 3.
As shown in figure 11, the rear end inside cover 1 is equipped with the air knife component of adjustable angle, transversely sets on the component
It is equipped with a series of high-pressure nozzles 15 and constitutes high-pressure nozzle row 46, each high-pressure nozzle 15 connects the connection of gas seat 47 by its rear end respectively
High-pressure air pipe 23.
Specifically, the air knife component that adjustable angle is shown in Figure 12 includes a main component wobble plate 40, under wobble plate 40
End is hinged on attachment base 39 by shaft 41, and the upper end transverse direction solid welding of wobble plate 40 has cylindrical sleeve 42.Wherein, interior of cylindrical sleeve 42
With cylindrical body 43 is set with, as shown in figure 13, it is disposed radially tapped through hole in the middle part of cylindrical body 43, has been equipped in tapped through hole
Screw rod 45, screw rod 45 are fixedly connected with 44 shaft of stepper motor.A series of 15 structures of high-pressure nozzle are evenly distributed in wobble plate 40
At high-pressure nozzle row 46, each high-pressure nozzle 15 connects high-pressure air pipe 23 by the gas seat 47 that connects of its rear end respectively.That is high-pressure air pipe
A series of gas-distributing pipes are connected on 23, the gas seat 47 that connects of each 15 rear end of high-pressure nozzle is connected respectively at corresponding gas-distributing pipe.
As shown in figure 11, the front end fixed traction seat 7 of cover 1 and with vehicle traction position connect.The present embodiment is also strictly according to the facts
It applies and is provided with the traversing traversing regulating mechanism of driving traction seat 7 described in example 1.Traversing regulating mechanism optimum configuration is in traction seat 7
Two sidewalls setting axis hole is simultaneously equipped with long axis 9, and 9 outer sheath of long axis is equipped with casing 36, the fixed company vertical with casing 36 of draw bar 8
It connects, 36 side of casing is fixed with block machine 37, and one end is fixed with electric pushrod 34, the pusher portion of electric pushrod 34 in traction seat 7
35 press against 37 side of block machine, and one end on the long axis 9 far from electric pushrod 34 is set with spring 38, and spring 38 is supported on
Between 7 side wall of casing 36 and traction seat.
Claims (10)
1. a kind of high pressure gas roll-type suspended hood cleaned for expressway, cover and exhausting system including lower ending opening, exhausting
The air draft passage of system is installed on covering on top, which is characterized in that at left and right sides of the front end of the cover and rear end left and right sides is respectively
Shock-absorbing support wheel assembly is installed, cover independent ambulation is enable to keep behind ground, each shock-absorbing support wheel assembly support cover
Bottom opening and ground keep controllable spacing d, and the front end fixed traction seat of cover is simultaneously connect with vehicle traction position, in cover
The rear end in portion is equipped with road cleaning rotary wind mechanism, which includes high pressure gas roller, high-pressure air pipe connection
In in the hollow cavity of high pressure gas roller, the air knife mouth parallel with axial direction is circumferentially evenly distributed in high pressure gas roller side, in height
Roller outside matching of calming the anger is set with semiclosed arc-shaped cover, and high pressure gas roller both ends are mounted in bearing block by bearing, bearing block peace
In axis hole loaded on semiclosed arc-shaped cover two sides end plate, semiclosed arc-shaped cover is mounted in fixing seat, and the one of semiclosed arc-shaped cover
Lateral edge axially offers mouth as wafter is gone out in parallel, meets at least two groups of air knife mouths and is located in wafter region simultaneously, is
Outlet air unit, and the air knife mouth being located in semiclosed arc-shaped cover blocks not outlet air, one end of high pressure gas roller by semiclosed arc-shaped cover
Wall center connects hollow rotating shaft, and hollow rotating shaft end extends outlet axis, and gas sealing is set in rotary sleeve, high-pressure air pipe connection
It is connected in rotary sleeve and with the cavity of hollow rotating shaft, another end wall center of high pressure gas roller connects solid spindle, hollow rotating shaft
It is set with solid spindle in the bearing, its axial direction of high pressure gas roller driven-mechanism drives edge persistently rotates.
2. the high pressure gas roll-type suspended hood according to claim 1 cleaned for expressway, which is characterized in that the driving
Mechanism is to be equipped with driven wheel in the end of solid spindle, and the shaft of driving motor is equipped with driving wheel, driving wheel and driven wheel
Transmission connection.
3. the high pressure gas roll-type suspended hood according to claim 1 cleaned for expressway, which is characterized in that the driving
Mechanism is that annular groove is circumferentially distributed with as ventilation slot in high pressure gas roller side, is tangentially provided in ventilation slot tangential
Hole is equipped with tangential spray head in tangential hole, and the air knife mouth is vented slot isolation or air knife mouth is interspersed with ventilation slot.
4. the high pressure gas roll-type suspended hood according to claim 1 cleaned for expressway, which is characterized in that be provided with drive
The traversing traversing regulating mechanism of dynamic traction seat；The traversing regulating mechanism is that axis hole is arranged in traction seat two sidewalls and is equipped with length
Axis, long axis outer sheath are equipped with casing, and draw bar is vertical with casing to be fixedly connected, and casing side is fixed with block machine, one in traction seat
End is fixed with electric pushrod, and the pusher portion of electric pushrod presses against block machine side, far from electric pushrod on the long axis
One end is set with spring, and spring supporting is between casing and traction seat side wall.
5. the high pressure gas roll-type suspended hood according to claim 1 cleaned for expressway, which is characterized in that in cover
Front interior arc deflector is installed, striker plate is tiltedly installed on rear side of bleed-off passage.
6. the high pressure gas roll-type suspended hood according to claim 1 cleaned for expressway, which is characterized in that the damping
Supporting wheel assembly includes the support being fixed on cover lateral wall, and casing is vertically fixed on support, is set with screw rod in casing,
It is located at casing upper and lower side on screw rod and is separately installed with height adjustment nut, screw rod bottom is equipped with damper, and damper bottom connects
Connect traveling wheel.
7. the high pressure gas roll-type suspended hood according to claim 1 cleaned for expressway, which is characterized in that semiclosed
Matching is set with arc-shaped seat on the outside of arc-shaped cover, and convex-concave structure cooperation is entrenched togather between semiclosed arc-shaped cover and arc-shaped seat, and
The angle for adjusting semiclosed arc-shaped cover can be rotated after semiclosed arc-shaped cover is detached from convex-concave structure；The arc-shaped seat is direct
Or it is indirectly connected with fixing seat, welding socket in fixing seat is set with stretching screw in pipe sleeve, and the both ends of stretching screw are threadedly coupled
There is locking silk, connecting screw is fixed together with the arc-shaped seat.
8. the high pressure gas roll-type suspended hood according to claim 1 cleaned for expressway, which is characterized in that the fixation
Seat matching clamps the semiclosed arc-shaped cover, and jackscrew is equipped in fixing seat for holding out against the semiclosed arc-shaped cover of connection, unclamps top
Semiclosed arc-shaped cover can be rotated after silk.
9. a kind of adjustable-angle suspended hood cleaned for expressway, cover and exhausting system including lower ending opening, exhausting
The air draft passage of system is installed on covering on top, which is characterized in that at left and right sides of the front end of the cover and rear end left and right sides is respectively
Shock-absorbing support wheel assembly is installed, cover independent ambulation is enable to keep behind ground, each shock-absorbing support wheel assembly support cover
Bottom opening and ground keep controllable spacing d, and the front end fixed traction seat of cover is simultaneously connect with vehicle traction position, in cover
The rear end in portion is equipped with the air knife component of adjustable angle, and a series of high-pressure nozzles are horizontally arranged on the component and constitute high pressure spray
Head row, the gas seat that connects that each high-pressure nozzle passes through its rear end respectively connect high-pressure air pipe.
10. the adjustable-angle suspended hood according to claim 9 cleaned for expressway, which is characterized in that the angle
Spending adjustable air knife component includes wobble plate, and wobble plate lower end is hinged on attachment base by shaft, and the upper end transverse direction solid welding of wobble plate has
Cylindrical sleeve, the interior matching of cylindrical sleeve are set with cylindrical body, and tapped through hole, installation in tapped through hole have been disposed radially in the middle part of cylindrical body
There is screw rod, screw rod is fixedly connected with stepping motor rotating shaft, and a series of high-pressure nozzles are evenly distributed in the wobble plate and constitute height
Spray head row is pressed, the gas seat that connects that each high-pressure nozzle passes through its rear end respectively connects high-pressure air pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910406722.XA CN110029614B (en) | 2019-05-16 | 2019-05-16 | Suction hood for cleaning expressway |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910406722.XA CN110029614B (en) | 2019-05-16 | 2019-05-16 | Suction hood for cleaning expressway |
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| CN110029614A true CN110029614A (en) | 2019-07-19 |
| CN110029614B CN110029614B (en) | 2024-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910406722.XA Active CN110029614B (en) | 2019-05-16 | 2019-05-16 | Suction hood for cleaning expressway |
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| CN (1) | CN110029614B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111871900A (en) * | 2020-06-18 | 2020-11-03 | 中铁十二局集团有限公司 | Air spiral-flow type insulator decontamination equipment |
| CN111893583A (en) * | 2020-06-30 | 2020-11-06 | 郑泽高 | Automatic clear board equipment of chemical fiber production |
| CN112146443A (en) * | 2020-09-29 | 2020-12-29 | 中冶北方（大连）工程技术有限公司 | Sintering machine trolley grate bar reset compression roller |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090113660A1 (en) * | 2007-11-05 | 2009-05-07 | Stell Edward B | High Efficiency Intake Hood System For Mobile Sweeper Vehicles |
| CN101838974A (en) * | 2010-04-22 | 2010-09-22 | 徐国栋 | Combined snow removing device |
| CN102041794A (en) * | 2009-10-12 | 2011-05-04 | 李犁 | Freeway sweeping truck |
| CN104790327A (en) * | 2014-01-22 | 2015-07-22 | 李犁 | High pressure airflow dust shovel machine |
| CN104963307A (en) * | 2015-08-05 | 2015-10-07 | 叶建新 | Road surface sweeper |
| CN105121745A (en) * | 2013-02-01 | 2015-12-02 | 国家运动汽车竞赛协会公司 | Apparatuses, systems, and methods for clearing a surface using air |
| US20150354156A1 (en) * | 2013-02-01 | 2015-12-10 | National Association For Stock Car Auto Racing, Inc. | Apparatuses, systems, and methods for clearing a surface using air |
| CN106087832A (en) * | 2016-07-25 | 2016-11-09 | 陈志华 | Air stream drives for road sweeper picks up dirt device and road sweeper |
| CN106120621A (en) * | 2016-06-30 | 2016-11-16 | 厦门纵横通电动车有限公司 | A kind of refuse sweeping mechanism and refuse cleaner |
| CN206570744U (en) * | 2017-01-16 | 2017-10-20 | 厦门纵横通电动车有限公司 | The refuse cleaner that a kind of malleation wind and negative pressure wind are used in combination |
| CN210341766U (en) * | 2019-05-16 | 2020-04-17 | 路直 | Air suction hood for cleaning highway |
-
2019
- 2019-05-16 CN CN201910406722.XA patent/CN110029614B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090113660A1 (en) * | 2007-11-05 | 2009-05-07 | Stell Edward B | High Efficiency Intake Hood System For Mobile Sweeper Vehicles |
| CN102041794A (en) * | 2009-10-12 | 2011-05-04 | 李犁 | Freeway sweeping truck |
| CN101838974A (en) * | 2010-04-22 | 2010-09-22 | 徐国栋 | Combined snow removing device |
| CN105121745A (en) * | 2013-02-01 | 2015-12-02 | 国家运动汽车竞赛协会公司 | Apparatuses, systems, and methods for clearing a surface using air |
| US20150354156A1 (en) * | 2013-02-01 | 2015-12-10 | National Association For Stock Car Auto Racing, Inc. | Apparatuses, systems, and methods for clearing a surface using air |
| CN104790327A (en) * | 2014-01-22 | 2015-07-22 | 李犁 | High pressure airflow dust shovel machine |
| CN104963307A (en) * | 2015-08-05 | 2015-10-07 | 叶建新 | Road surface sweeper |
| CN106120621A (en) * | 2016-06-30 | 2016-11-16 | 厦门纵横通电动车有限公司 | A kind of refuse sweeping mechanism and refuse cleaner |
| CN106087832A (en) * | 2016-07-25 | 2016-11-09 | 陈志华 | Air stream drives for road sweeper picks up dirt device and road sweeper |
| CN206570744U (en) * | 2017-01-16 | 2017-10-20 | 厦门纵横通电动车有限公司 | The refuse cleaner that a kind of malleation wind and negative pressure wind are used in combination |
| CN210341766U (en) * | 2019-05-16 | 2020-04-17 | 路直 | Air suction hood for cleaning highway |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111871900A (en) * | 2020-06-18 | 2020-11-03 | 中铁十二局集团有限公司 | Air spiral-flow type insulator decontamination equipment |
| CN111871900B (en) * | 2020-06-18 | 2023-06-20 | 中铁十二局集团有限公司 | Air spiral-flow type insulator decontamination equipment |
| CN111893583A (en) * | 2020-06-30 | 2020-11-06 | 郑泽高 | Automatic clear board equipment of chemical fiber production |
| CN112146443A (en) * | 2020-09-29 | 2020-12-29 | 中冶北方（大连）工程技术有限公司 | Sintering machine trolley grate bar reset compression roller |
| CN112146443B (en) * | 2020-09-29 | 2022-05-13 | 中冶北方（大连）工程技术有限公司 | Sintering machine trolley grate bar reset compression roller |
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|---|---|
| CN110029614B (en) | 2024-01-16 |
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