CN205893989U - Special sucking and sweeping car of road milling - Google Patents

Abstract

The utility model discloses a special sucking and sweeping car of road milling, include the chassis and install in sucking and sweeping device and power device, the dust collector of top and the device that gathers materials of chassis below, dust collector's cyclone's entry intercommunication dust collector's entry, cyclone's gas outlet is connected with the centrifugal fan entry, and the collection plenum is connected with centrifugal fan's air outlet, the dust outlet of cyclone bottom feeds through the device that gathers materials. The utility model discloses to impress the secondary including the few partial air current of thin granule waste material with the malleation of centrifugal fan air outlet gathers materials the case and filters the back discharge through bag collector, the suction amount of wind of inhaling in the material cover is greater than the amount of wind of impressing, keeps negative pressure in making the cover, can only suck air current in the cover, can not take place to contain the excessive production sucking and sweeping operation secondary pollution of material air current, the utility model discloses for ordinary motor sweeper, can siphon away the tiny dust that produces effectively among the road milling, it is effectual to milling cleaning of planing surface, guarantee bond quality between follow -up construction middle level.

Description

A special suction sweeper for road milling

technical field

The utility model relates to the field of road surface cleaning machines, in particular to a special suction sweeper for road surface milling and planing.

Background technique

In modern road construction, due to the different characteristics of the semi-rigid base material and the asphalt surface material, it is difficult to ensure complete continuity between the base layer and the surface layer, and certain treatment measures must be taken to combine the two layers into one. If the interlayer treatment measures are not appropriate, it is easy to cause slippage, cracking and other phenomena, which is not conducive to the service life of the asphalt pavement. In engineering, fine milling is often used to treat the semi-rigid base in order to improve the surface texture of the base, improve the contact state between the base and the surface layer, and prolong the service life of the asphalt pavement. inter-bond strength.

In modern road maintenance, a milling machine is often used to mill the old road surface, and then add new materials on the milled surface to form a new road surface. Similarly, a large amount of waste remains on the working face after milling, which affects the bonding strength of the old and new layers.

In actual engineering, in order to clean the milled working surface and improve the bonding strength, manual blower cleaning is often used. Although the cleaning quality of this manual cleaning method is good, it has secondary dust pollution and the labor intensity of workers is high. Production The disadvantage of low efficiency. At present, the mechanical cleaning vehicles at home and abroad have a good cleaning effect on general garbage on the road, but the cleaning effect on the milled surface is not good, especially the fine dust is more difficult to achieve a good cleaning effect, which affects the interlayer adhesion. quality.

Utility model content

The purpose of the utility model is to provide a special suction sweeper for road surface milling to solve the above technical problems. The utility model is a special suction sweeper for road surface milling and planing with good quality and high efficiency.

In order to achieve the above object, the utility model adopts the following technical solutions to achieve:

A special suction and sweeping vehicle for road surface milling, including a chassis, a suction and sweeping device, a power device, a dust removal device, and a material collecting device; the suction and sweeping device is installed under the chassis, and the power device, dust removal device, and material collecting device are installed on the chassis; The suction and sweeping device includes a suction hood, a suction pipe, an air supply pipe, a deflector, a blowback port and a suction port; the suction hood is installed under the chassis of the suction sweeper, and the suction hood is divided into n rectangular deflectors. n+1 rectangular spaces, each rectangular space is equipped with a suction port in the middle, and a blowback port is installed at each end; n is a positive integer; the suction port communicates with the inlet of the dust removal device through the suction pipe, and the blowback port passes through the air supply The pipe is connected with the air collection chamber; the power device includes a power source and a centrifugal fan; the dust removal device includes a cyclone separator and an air collection chamber; the inlet of the cyclone separator is connected with the inlet of the dust removal device; the gas outlet of the cyclone separator is connected to the centrifugal fan through a connecting pipe. The inlet of the fan is connected, the air collection chamber is connected with the outlet of the centrifugal fan; the dust outlet at the bottom of the cyclone separator is connected to the collecting device.

Further, the dust removal device also includes a filter screen, a bag filter and a clean air chamber; the airflow sucked into the dust removal device by the suction pipe passes through the filter screen and then enters the inlet of the cyclone separator; Connected, the upper end of the bag filter is connected to the clean air chamber, and the clean air chamber communicates with the atmosphere through the exhaust port.

Further, the cyclone separator includes an inner cylinder, an outer cylinder, a reverse funnel baffle and a filter; the outer cylinder is arranged on the outer periphery of the inner cylinder, the top of the outer cylinder is sealed and connected to the outer wall of the inner cylinder, and the bottom is provided with a discharge port; the reverse funnel baffle The plates are staggeredly installed between the outer wall of the inner cylinder and the inner wall of the outer cylinder. The filter is connected to the inner cylinder and the reverse funnel baffle closest to the inner cylinder. The air outlet at the upper end of the outer cylinder of the cyclone separator is connected to the inlet of the centrifugal fan through a connecting pipe. .

Further, the power source is an internal combustion engine, an engine group or a power battery.

Further, the collecting device includes a primary collecting box, a secondary collecting box and a tertiary collecting box; the filter screen is installed above the primary collecting box, and is located at the outlet above the primary collecting box; the secondary collecting box is arranged on the cyclone Below the dust outlet at the bottom of the separator; the bag filter is installed at the upper end of the tertiary collecting box.

Further, small wheels are installed at the bottom of the primary collecting box and the secondary collecting box; guide grooves are provided at the bottom of the tertiary collecting box.

Further, there is a Venturi nozzle above the bag filter, and the Venturi nozzle is connected to the confluence chamber through a ball valve, which is used to open the ball valve when the dust blocked on the outer surface of the bag filter reaches a certain thickness, and the high-pressure airflow passes through the Venturi The nozzle clears the dust into the tertiary collection box.

Further, there is a dragging device at the front end of the suction hood and supporting small wheels are hinged around it, and a manual lifting device for controlling the height of the suction hood from the ground is provided between the suction hood and the chassis.

Further, in each rectangular space, the two blowback ports are inclined towards the central suction port, and both the suction port and the blowback port are flat.

Compared with the prior art, the utility model has the following beneficial effects:

In order not to produce material-containing airflow overflow during the suction and sweeping operation, the utility model uses the positive pressure of the air outlet of the centrifugal fan to filter a small part of the airflow containing fine particle waste through the bag filter and then discharge it. The suction air volume in the suction hood is greater than the pressure air volume, and the hood maintains a negative pressure state, and can only inhale the air flow in the hood, and there will be no secondary pollution caused by the overflow of the material-containing air flow.

Further, the dust removal device of the suction sweeper has three stages of filtration. The first stage of filtration is that the high-concentration material-containing air passes through the filter screen, and the low-concentration material-containing air is obtained through the primary filtration, and the filtered waste falls into the primary collection box. The obtained low-concentration material-containing airflow finally passes through the cyclone dust collector, and the waste falls into the secondary collection box, and the above is secondary filtration. The air flow is divided into two directions under the positive pressure of the centrifugal fan, most of one way is ejected from the blowback port of the air supply pipe, and a small part of the other way is discharged after being filtered by the bag filter, and the filtered waste falls into the third collection box, The above are three stages of filtration.

Further, when the dust blocked on the outer surface of the bag filter in the suction sweeper reaches a certain thickness, the ball valve is opened, and the high-pressure airflow in the confluence chamber clears the dust into the tertiary collecting box through the Venturi nozzle.

Further, after the suction and sweeping operation of the suction sweeper for a period of time, when the primary collection box and the secondary collection box are almost full, the collection box is pushed out to discharge through the small wheels.

Further, when the suction sweeper is performing suction and sweeping operations, the control device will lower the suction device, and control the distance between the small wheel and the suction hood from the ground to 0-50mm, and the control device will turn the The suction device goes up to facilitate transition.

Description of drawings

In order to illustrate the technical solution of the utility model more clearly, the accompanying drawings that need to be used in the implementation will be briefly introduced below. Obviously, the accompanying drawings in the following description are only some implementations of the utility model. Ordinary technicians can also obtain other drawings based on these drawings on the premise of not paying creative work.

Fig. 1 is the schematic structural view of the suction sweeper of the utility model embodiment;

Fig. 2 is a schematic structural diagram of the suction sweeping device of the utility model embodiment;

Fig. 3 is a schematic diagram of the flow direction of the material-containing airflow of the suction sweeper according to the embodiment of the present invention.

Among them: 1-chassis; 2-collecting device; 3-primary collecting box; 4-filter; 5-support small wheel; 6-suction sweeping device; 7-suction cover; 8-ball valve; 9-lift ;10-control device; 11-dragging device; 12-gathering chamber; 13-power device; 14-electric motor; 15-centrifugal fan; 16-reverse funnel baffle; 17-inner tube; 19-cyclone dust collector; 20-exhaust port; 21-clean air chamber; 22-venturi nozzle; 23-bag dust collector; 24-outer cylinder; 25-limit switch; -guide groove; 28-secondary collection box; 29-filter; 30-small wheels; 31-suction pipe; 32-air supply pipe; 33-deflector; .

detailed description

Referring to Fig. 1 and Fig. 2, the utility model is a special suction sweeper for road milling, including a chassis 1, a power unit 13, a control device 10, a collecting device 2, a dust removal device 18, a suction sweeper 6 and several connecting pipes.

The power unit 13 , the control unit 10 , the collecting device 2 , the dust removal device 18 , and the suction and sweeping device 6 are installed on the chassis 1 , and the connecting pipe connects the dust removal device 18 and the suction and sweeping device 6 .

The power unit 13 is made up of a power source, a motor 14 and a centrifugal fan 15 . The power source is an internal combustion engine, an engine block or a power battery.

The collecting device 2 includes a primary collecting box 3 , a secondary collecting box 28 and a tertiary collecting box 26 . The collecting device 2 is a pull-out device.

The dust removal device 18 includes a filter screen 4 , a cyclone separator 19 , a bag filter 23 , an air collection chamber 12 , a clean air chamber 21 and an exhaust port 20 . The filter screen 4 is installed on the top of the primary collecting box 3 and is located at the outlet above the primary collecting box 3 . The blanking opening at the lower end of the cyclone separator 19 communicates with the secondary collection box 28, the air outlet of the cyclone separator 19 is connected with the inlet of the centrifugal fan 15 through a connecting pipe, and the air collection chamber 12 is connected with the air outlet of the centrifugal fan 15. The bag filter 23 communicates with the confluence chamber 12 through the connecting pipe and is controlled by the ball valve 8. The bag filter 23 is installed on the upper end of the tertiary collecting box 26, and the lower end of the bag filter 23 communicates with the tertiary collecting box 26. The upper end of the type dust collector 23 communicates with the clean air chamber 21, and the clean air chamber 21 communicates with the atmosphere through the air outlet 20.

Further, small wheels 30 are installed at the bottom of the primary collection box 3 and the secondary collection box 28, and guide grooves 27 are arranged at the bottom of the three collection box 26. When the collection box is full of waste materials, the collection box can be passed through the small Wheel 30 or guide groove 27 are pulled out and prepare to unload.

Further, the upper space of the bag filter 23 in the tertiary collection box 26 is a clean air chamber 21, the filter bag in the bag filter 23 is located below the clean air chamber 21, and a Venturi nozzle is arranged above the filter bag 22. The Venturi nozzle 22 is connected to the air collection chamber 12 through the ball valve 8, and is used to open the ball valve 8 when the dust blocked on the outer surface of the bag filter 23 reaches a certain thickness, and the high-pressure airflow injected into the dust collector passes through the Venturi nozzle 22 dust is cleared and falls in the collecting box 26 for three times.

Further, the filter screen 4 in the dust removal device 18 has a mesh aperture of about 0 mm to 20 mm, and is arranged close to the air outlet of the primary collecting box 3 .

Further, the cyclone separator 19 of the dust removal device 18 is composed of an inner cylinder 17 , an outer cylinder 24 , a reverse funnel baffle 16 and a filter 29 . The air flow containing waste flows in from the inner cylinder 17, and the reverse funnel baffles 16 are staggeredly installed on the outer wall of the inner cylinder 17 and inside the outer cylinder 24, and the filter 29 connects the inner cylinder 17 and the reverse funnel baffle 16 closest to the inner cylinder 17 , A blanking opening is opened at the bottom of the outer cylinder 24, and the air outlet at the upper end of the outer wall of the cyclone separator is connected to the inlet of the centrifugal fan 15 through a connecting pipe.

Referring further to FIG. 2 and FIG. 3 , the suction sweeping device 6 includes a suction hood 7 , a suction pipe 31 , an air supply pipe 32 , a deflector 33 , a blowback port 34 and a material suction port 35 . The suction cover 7 is installed on the bottom of the suction sweeper, and the deflector 33 is installed on the suction cover 7 to divide the suction cover 7 into several rectangular spaces. A suction port 35 is installed in the middle of each rectangular space, and the suction port 35 passes through the suction port. The air pipe 31 communicates with the inlet of the dust removal device 18 , and the two ends are equipped with a blowback port 34 , and the blowback port 34 communicates with the air collection chamber 12 through the air supply pipe 32 . Under the action of the positive pressure air supply in the air collection chamber 12, the air sent by the air supply pipe 32 is ejected from the blowback port 34 and the air suction pipe 31 produces an inhaled airflow, and the waste in the airflow moves along the deflector 33 in a certain direction. Flow, suck the dust removal device from the suction port 35.

Further, there is a drag device 11 at the front end of the suction hood 7 and there are supporting small wheels 5 hinged around it. The control device 10 controls the rope on the suction hood 7 through the manual lifting device 9 to lift the suction hood 7. By controlling the support small Wheel 5 lands and avoids suction cover 7 from hitting the ground. The distance from the suction cover 7 to the ground is generally 0-50mm.

Furthermore, the suction hood 7 is divided into n+1 rectangular spaces by n rectangular deflectors 33 , and the distance between the deflectors 33 and the above-mentioned suction hood 7 is larger than that of the ground.

Furthermore, the material suction port 35 in the material suction cover 7 is located in the middle, while the blowback port 34 is located at both ends of the cover and slopes inward at a certain angle. Both the material suction port 35 and the blowback port 34 are flat.

Furthermore, the number of the air suction pipe 31 and the air supply pipe 32 is at least two, and the air suction pipe 31 and the air supply pipe 32 correspond one to one.

Working principle of the utility model:

The control device 10 controls the suction and sweeping device 6 to drop to a certain height, so that an airtight space is formed in the suction cover 7, and the motor 14 is turned on to drive the centrifugal fan 15. The inlet generates negative pressure, the outlet generates positive pressure, and the suction port 35 is under negative pressure. Under the action, the waste-containing airflow is sucked, and the waste-containing airflow enters the dust removal device 18, and is filtered through the filter screen 4. The large-particle waste falls into the primary collection box 3, and the airflow containing medium and small particle waste enters the cyclone separator 19. Under the action of the inner cylinder 17, a downward swirling airflow is generated, so that the small and medium particles are swirled into the secondary collection box 28, and the outside of the inner cylinder 17 and the inside of the outer cylinder 24 generate an upward swirling airflow, which passes through the bottom of the inner cylinder 17 And the filter 29 of the reverse funnel baffle 16 is discharged from the air outlet on the upper end of the outer cylinder 24 along the reverse funnel baffle 16 , so that the airflow through the secondary filter enters the centrifugal fan 15 . The air flow is divided into two directions under the positive pressure of the centrifugal fan 15, most of the air flow is ejected from the blowback port 34 of the air supply pipe 32, and a small part of the air flow is pressed into the bag filter 23 to filter and then falls into the tertiary collection box 26. When the dust blocked on the outer surface of the bag filter 23 reaches a certain thickness, the control device opens the ball valve 8, and the high-pressure airflow sprayed into the dust collector passes through the Venturi nozzle 22 to clear the dust into the tertiary collecting box 26. When the collecting device 2 is almost full, the control device turns off the centrifugal fan 15 to lift the suction sweeping device, the suction sweeping vehicle travels to the unloading yard, opens the limit switch 25 of the collecting device 2, pulls out the collecting device 2 and dumps it .

The above is a preferred embodiment of the present utility model, it should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present utility model, some improvements and modifications can also be made, these improvements and modifications It is also regarded as the protection of the utility model.

Claims (9)

1. a kind of special dust collecting and cleaning vehicles of road-surface milling it is characterised in that: include chassis (1), inhale sweeping device (6), power set (13), Dust arrester (18) and material-gathering device (2)；

Inhale the lower section that sweeping device is installed on chassis, power set, dust arrester and material-gathering device are installed on chassis；

Inhale sweeping device and include suction cover (7), aspiration channel (31), ajutage (32), deflector (33), back blow port (34) and material sucking port (35)；Suction cover is arranged on the lower section on dust collecting and cleaning vehicles chassis, and suction cover is divided into n+1 coffin by n rectangular guiding plate, each Material sucking port is installed in the middle of coffin, two ends are respectively provided with a back blow port；Material sucking port is entered with dust arrester by aspiration channel Mouth communicates, and back blow port is passed through ajutage and is connected with remittance air compartment (12)；N is positive integer；

Power set include power source and centrifugal blower (15)；

Dust arrester includes cyclone separator (19) and the air compartment that converges；The entrance of cyclone separator connects the entrance of dust arrester；Rotation The gas outlet of wind separator is connected with centrifugal blower entrance by connecting tube, and the air compartment that converges is connected with the air outlet of centrifugal blower Connect；The dust outlet connection material-gathering device of cyclone separator bottom.

2. a kind of special dust collecting and cleaning vehicles of road-surface milling according to claim 1 it is characterised in that: dust arrester also includes filter screen (4), sack cleaner (23) and air-purifying chamber (21)；The air-flow that aspiration channel sucks in dust arrester enters whirlwind after drainage screen and divides Entrance from device；Sack cleaner is passed through connecting tube and is connected with remittance air compartment, and sack cleaner upper end connects air-purifying chamber, and air-purifying chamber leads to Cross exhaust outlet to communicate with air.

3. a kind of special dust collecting and cleaning vehicles of road-surface milling according to claim 1 it is characterised in that: cyclone separator includes inner core (17), outer tube (24), reverse funnel baffle plate (16) and filter (29)；Outer tube is arranged at inner core periphery, outer tube top and inner core Outer wall is tightly connected, and bottom arranges blanking port；Reversely funnel baffle plate (16) is staggered installation of in inner core (17) outer wall and outer tube (24) Between inwall, filter is connected to inner core and from the nearest reverse funnel baffle plate of inner core, the gas of the outer tube upper end of cyclone separator Flow export is connected with centrifugal blower entrance by connecting tube.

4. a kind of special dust collecting and cleaning vehicles of road-surface milling according to claim 1 it is characterised in that: power source is internal combustion engine, sends out Motivation group or electrokinetic cell.

5. a kind of special dust collecting and cleaning vehicles of road-surface milling according to claim 2 it is characterised in that: material-gathering device includes once collecting Hopper (3), secondary Material collecting box for harvesting (28) and three Material collecting box for harvesting (26)；Filter screen is installed on above a Material collecting box for harvesting, positioned at once gathering materials Exit above case；Secondary Material collecting box for harvesting is arranged at below the dust outlet of cyclone separator bottom；Sack cleaner is arranged on three The upper end of secondary Material collecting box for harvesting.

6. a kind of special dust collecting and cleaning vehicles of road-surface milling according to claim 5 it is characterised in that: a Material collecting box for harvesting and secondary collection Hopper bottom is provided with small wheels (30)；Three times guide groove (27) is arranged at Material collecting box for harvesting bottom.

7. a kind of special dust collecting and cleaning vehicles of road-surface milling according to claim 5 it is characterised in that: be provided with above sack cleaner Venturi nozzle (22), Venturi nozzle connects remittance air compartment by ball valve, for the powder being blocked in sack cleaner outer surface When dirt reaches certain thickness, open ball valve, dust is fallen clearly in three Material collecting box for harvesting by high pressure draught through Venturi nozzle.

8. a kind of special dust collecting and cleaning vehicles of road-surface milling according to claim 1 it is characterised in that: there is dragging dress suction cover front end Put (11) and surrounding hinged support steamboat (5), be provided between suction cover and chassis for controlling suction cover terrain clearance Hand hoisting device (9).

9. a kind of special dust collecting and cleaning vehicles of road-surface milling according to claim 1 it is characterised in that: in each coffin, two The material sucking port at individual back blow port Jun Chao center tilts, and material sucking port and back blow port are in all flat pattern.