WO2012003727A1

WO2012003727A1 - Road washing and sweeping vehicle

Info

Publication number: WO2012003727A1
Application number: PCT/CN2011/072629
Authority: WO
Inventors: 李建华; 谢永洲; 陈明; 傅立荣
Original assignee: 长沙中联重工科技发展股份有限公司; 湖南中联重科专用车有限责任公司
Priority date: 2010-07-07
Filing date: 2011-04-11
Publication date: 2012-01-12
Also published as: CN102312413A; CN102312413B

Abstract

A road washing and sweeping vehicle comprises a vehicle chassis, sweeping brushes (31, 33, 41, 43), a suction nozzle (6) and spraying rods (51, 53, 55). The vehicle chassis includes front wheels (11), rear wheels (13) and a vehicle frame (2), wherein the sweeping brushes (31, 33, 41, 43), the spraying rods (51, 53, 55) and the suction nozzle (6) are all located between the front wheels (11) and the rear wheels (13).

Description

Road Cleaning Sweeper This application claims priority on July 7, 2010 to the Chinese National Intellectual Property Office, Application No. 201010224804.1, and the invention titled "Road Sweeper". TECHNICAL FIELD The present invention relates to the field of sanitation machinery, and more particularly to a road sweeper. BACKGROUND OF THE INVENTION A sweeping vehicle is a sanitation vehicle that combines road surface cleaning, road surface cleaning, garbage collection and sewage collection functions. The cleaning device is usually composed of a sweeping plate, a high pressure water spray bar and a suction nozzle, and will sweep and high pressure. The water lance is arranged before the rear wheel of the sweeping vehicle, and the nozzle is arranged behind the rear axle. The nozzle of this structure is spaced apart from the rear wheel of the car by the sweeping disc and the spray bar, and the distance is large. Therefore, the garbage and sewage in front of the suction nozzle in the middle of the bottom of the vehicle can not be collected by the suction nozzle into the garbage can, and may be blown away by the airflow, causing the garbage and sewage to be sucked. Since garbage and sewage cannot be collected into the garbage can by the nozzle in time, it may be crushed by the rear wheel, causing secondary pollution. In addition, the nozzle is far away from the sweeping disc and the spray bar, and it is easy to leak during cornering, which affects the cleaning effect. In addition, the existing high-pressure water spray bar and the suction nozzle of the cleaning device require two sets of lifting mechanisms to be respectively lowered and lowered, and the cost is high. SUMMARY OF THE INVENTION An object of the present invention is to provide a road washing vehicle to solve the problem of the existing road sweeping vehicle, in which garbage and sewage are easily blown off by the airflow and pressed by the rear wheel, thereby causing the nozzle to suck. And the problem of leakage in the cornering work is easy to occur. In order to achieve the above object, the present invention provides a road sweeper including an automobile chassis, a sweeping disk, a suction nozzle and a spray bar, and the automobile chassis includes a front wheel, a rear wheel and a frame, and is characterized in that a sweeping disk and a spray bar are provided. And the nozzle is disposed between the front wheel and the rear wheel. Further, the suction nozzle includes a lifting mechanism and a nozzle body, and the lifting mechanism connects the nozzle body and the frame. Further, the sweeping disc is disposed on the frame, and the spray bar is fixed on the nozzle body. Further, the nozzle further includes a nozzle wheel disposed on the nozzle body, and the nozzle wheel is disposed on both sides of the nozzle body. Further, the spray bar includes a side spray bar disposed outside the nozzle body and an inner spray function disposed on the inner side of the nozzle body, and the side spray includes the left side spray and the right side spray, and each side spray includes a fixed spray. The stem and the swinging boom are fixedly connected to the nozzle, and the swinging boom is movably connected with the fixed boom. Further, the number of sweeps is at least three. Further, the road sweeper further includes a sub-frame connected to the frame, and the sub-frame is provided with at least one energy storage device, and at least one of the energy storage devices is dispersedly disposed in at least two. Further, the energy storage device includes an air reservoir, and the air reservoir includes a first air reservoir, a second air reservoir, and a third air reservoir that are disposed in a distributed manner. Further, the energy storage device further includes a storage battery, and the storage battery and the air storage cylinder are dispersedly disposed. Further, the energy storage device further includes a fuel tank, a fuel tank and each air reservoir, and a battery dispersion arrangement. Further, the nozzle is detachably connected to the frame. Since the sweeping plate, the spray bar and the suction nozzle are all arranged between the front wheel and the rear wheel, the suction nozzle is closer to the sweeping plate and the spray bar, and the sweeping disk sweeps the garbage in front of the suction nozzle, and the high-pressure water curtain cleans the road surface and then rushes to the surface. The sewage in front of the nozzle is immediately collected by the nozzle into the garbage can. Therefore, when the operation, the garbage and the sewage do not have the problem of being blown away by the airflow and being crushed by the rear wheel, and the suction nozzle is not sucked. Since the nozzle is placed in front of the rear wheel and close to the sweeping disk and the spray bar, the problem of leakage and leakage of the curve is overcome. Greatly improved the cleaning effect of the sweeper. In addition, the spray bar of the present invention is integrated with the main body of the nozzle, and the lifting and lowering of the spray bar and the suction nozzle can be realized by only one set of lifting mechanism, and two sets of lifting mechanisms are required for the spray bar and the suction nozzle of the existing cleaning device. Compared with the increase in the increase, the manufacturing cost is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in FIG In the picture: BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic plan view showing a road sweeper according to the present invention; and Fig. 2 is a side view showing the structure of a road sweeper according to the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. 1 and 2 schematically show the main structure of a road washing vehicle according to an embodiment of the present invention. As shown in FIGS. 1 and 2, a road washing vehicle according to an embodiment of the present invention includes a vehicle chassis, a sweeping wheel, a spray bar, and a suction nozzle 6, and the automobile chassis includes: a front wheel 11, a rear wheel 13, and a frame 2 The sweeping wheel, the spray bar and the suction nozzle 6 are disposed between the front wheel 11 and the rear wheel 13. As shown in FIG. 1, the dial, the spray bar and the suction nozzle 6 are disposed between the front wheel 11 and the rear wheel 13. Usually, the suction nozzle 6 is disposed behind the sweeping disc, and the spray boom is disposed behind and/or behind the sweeping disc. Since the sweeping plate, the spray bar and the suction nozzle are all disposed between the front wheel 11 and the rear wheel 13, the suction nozzle is closer to the sweeping plate and the spray bar, and the sweeping disk sweeps the garbage, high-pressure water in front of the suction port of the suction nozzle 6. After the curtain is cleaned, the sewage flushed to the front of the suction port of the suction nozzle 6 is immediately collected by the suction nozzle 6 into the garbage can. Therefore, when the operation is performed, the garbage and the sewage are not blown by the airflow, and there is no pressure by the rear wheel 13, and This will cause the suction nozzle 6 to suck the problem. Since the suction nozzle 6 is disposed in front of the rear wheel 13, it abuts against the sweeping disk and the spray bar, thereby overcoming the problem of leakage and leakage in the cornering operation. Greatly improved the cleaning effect of the sweeper. As shown in FIG. 1, in the present embodiment, the number of the sweeping disks is four, including: a front sweeping disc and a rear sweeping disc; the front sweeping disc includes a left front sweeping disc 31 and a right front sweeping disc 33 (the position of the front wheel is the front The position of the rear wheel is rear), and the rear dial includes the left rear dial 41 and the right rear dial 43 (the left side is left when the driver is in the driving position, and the right side is right when the driver is in the driving position) . The left front dial 31 and the right front dial 33, the left rear dial 41, and the right rear dial 43 may be disposed on the frame 2, for example, on both sides of the frame 2, respectively. Of course, the number of sweeps is not limited to four, and may be three or more. It is also possible to include only two sweeps of the left front dial 31 (or the left rear dial 41) and the right front dial 33 (or the right rear dial 43). Preferably, the number of sweeps is at least three. When the number of the discs is three, it is arranged in a triangle, and when the number of the discs is four, it is arranged in a quadrangular shape, for example, in a rectangular shape. Compared with the two sweeping discs, the cleaning area is increased, the sweeping position is more comprehensive, the cleaning corner is less, and the cleaning speed becomes 'I". As shown in Fig. 1 and Fig. 2, the suction nozzle 6 is, for example, The suction nozzle main body 63 provided on the frame 2, the lifting mechanism 61 connecting the suction nozzle main body 63 and the frame 2, and the suction pipe provided on the suction nozzle main body 63 may be included. 67. The front end portion of the nozzle body 63 has a suction port 65 for sucking garbage and sewage. The lifting mechanism 61 can lift and lower the suction main body 63 so that the suction port 65 picks up garbage during work and lifts it in a non-operating state to avoid damage. The lifting mechanism 61 of the present invention can utilize the structure of various suitable lifting mechanisms on the existing washing vehicle, such as a chain type lifting mechanism, and therefore, the structure of the lifting mechanism will not be described herein. The suction port 65 should be of a suitable size to be able to absorb waste and sewage within a certain range. The suction port 65 is provided with a suction port baffle 69 for increasing the degree of vacuum in the suction nozzle and increasing the air flow speed at the suction port 65. Generally, the suction port baffle 69 is a rubber plate, which can have better wear resistance. By the lifting mechanism 61, the suction main body 63 can be raised and lowered with respect to the frame 2, thereby achieving the raising and lowering of the suction port 65. Preferably, the lifting mechanism 61 includes a nozzle wheel 551 that positions and adjusts the position of the suction port 65. In the present embodiment, one suction nozzle wheel 551 is provided on each side of the nozzle body 63. The nozzle body 63 moves in synchronism with the nozzle wheel 551, so that the nozzle body 63 rises and falls with the nozzle wheel 551, and thus, the suction port 65 rises and falls with the nozzle wheel 551. In operation, the nozzle wheel 551 descends to the ground with the lifting mechanism and comes into contact with the ground, so that the large distance between the suction port 65 and the ground can be determined, and the road sweeping carriage can travel as the road sweeps the vehicle, and keeps the suction port during the running. The location of the location. After the cleaning is completed, the nozzle wheel 551 is lifted up with the lifting mechanism and leaves the ground. The existing positioning method uses the frame of the road washing vehicle as a reference object. The distance between the frame 2 and the ground is different depending on the load of the frame, and the difference between the two cases is large, thereby affecting the suction port 65. The large separation from the ground causes the suction port 65 to be too far from the ground to inhale the garbage or the suction port to rub against the ground or the suction port to be stuck on the ground. Since the nozzle wheel 551 for positioning the position of the suction port 65 of the present invention uses the ground as a reference, the disadvantages of the conventional positioning method described above are avoided. Preferably, the nozzle wheel 551 is disposed at the lower portion of the inner spray bar 55, so that the distance between the inner spray bar 55 and the ground can be controlled and positioned to improve the quality of the water spray. The sweeping disk is disposed on the frame 2, and the spray bar is fixed to the suction nozzle 6. For example, the side spray bar is fixed to the left and right sides of the nozzle body 63, and the inner spray bar 55 is fixed to the inner side of the nozzle body 63. Since the spray bar and the suction nozzle 6 are integrated, the lifting and lowering of the spray bar and the suction nozzle 6 can be realized by only one set of lifting mechanism, and the lifting rods and the suction nozzles of the existing cleaning device need two sets of lifting mechanisms respectively to be lifted and lowered. In comparison, manufacturing costs are reduced. Preferably, in the embodiment, the spray bar is a high pressure water spray bar. The spray bar includes a side spray bar disposed outside the nozzle body 63 and an inner spray 55 disposed in the nozzle body 63. The internal spray 55 can be disposed, for example, inside the nozzle body 63 and behind the suction port 65, and can be quickly attached and detached. For example, the inner spray bar 55 is screwed to the nozzle body 63, such as by screws or bolts. Connect, quick disassembly for easy maintenance and replacement. The side booms may include, for example, a left side boom 51 and a right side boom 53. The left side boom 51 and the right side boom 53 may be disposed on both sides of the suction nozzle 6, respectively. The fan-shaped high-pressure water curtain sprayed by the plurality of nozzles on the side spray bar flushes the road surface with a suitable rake angle and internal inclination angle, and the sewage flows forever in front of the suction port 65; the fan shape ejected by the plurality of nozzles 6 on the inner spray bar 55 After the high pressure water curtain washes the road surface, it bounces or is sent to the suction port 65 area of the suction nozzle 6 by the air flow. Therefore, the sewage flushed to the front of the suction nozzle 6 after being cleaned of the road surface is absorbed. Preferably, each side spray bar comprises: a fixed spray bar fixedly coupled to the suction nozzle 6 and a swing spray bar movably coupled to the fixed spray bar. In the present embodiment, the oscillating spray bar is coupled to the fixed spray bar through a hinge shaft to achieve a swing joint. When the oscillating spray bars of the two side spray bars are swinged to the maximum angle, the distance between the extreme ends of the two side spray bars is greater than the body width of the road sweeper itself, and the distance between the hinge axes of the two side swing spray bars is smaller than the width of the body. . Taking the left side spray bar 51 as an example (the structure of the right side spray bar is the same), the method includes: a fixed spray 513 fixed to the suction nozzle 6, and a swing spray 515 matched with the fixed spray 513, during normal operation. The distance between the swinging spray bar 515 of the left side spray bar 51 and the end of the swing spray bar of the right side spray bar (not separately labeled) is greater than the width of the body of the road sweeper so that the sweep width is greater than the body width during normal operation. The oscillating spray 4 dry 515 is oscillated by the hinge shaft 514. When not working, the oscillating spray 4 dry 515 is rotated from the front to the rear to the inside of the vehicle body and retracted into the interior of the vehicle body, thereby protecting the side spray. The road sweeper also includes a sub-frame 21 that is disposed on the frame 2. In the present embodiment, the sub-frame 21 is a bracket that is disposed on the frame 2 for facilitating suspension and installation of various energy storage devices (for example, various energy-saving devices such as a gas cartridge, a fuel tank, and a battery). By the sub-frame 21, the components carried by the road sweeper can be enlarged. Among the one or more energy storage devices on the sub-frame 21, at least one of the energy storage devices includes a plurality of discretely disposed, for example, the air reservoir includes at least two air reservoirs disposed in a dispersed manner. Preferably, the sub-frame 21 is provided with three air reservoirs. The first air reservoir 71 is located above the left front left dial 31 of the sub-frame, and the second air reservoir 72 is located above the right front right dial 33 of the sub-frame. The third air reservoir 73 is located above the right rear right dial 43 of the sub-frame. Compressed air is stored in the air reservoir for braking the vehicle, which provides a source of air for the road sweeper. The first air reservoir 71 and the second air reservoir 72 are the main working air reservoirs, and the third air reservoir 73 is the spare air reservoir. To complete the work task, the third air reservoir 73 may not be needed, but for the sake of safety, the first setting The three air reservoirs 73 can increase safety. In the past, road sweepers usually set the air reservoirs in a centralized manner. Take up a large whole space, so that other large parts do not have a suitable installation position, such as affecting the setting of components such as the sweeping disk. The invention disperses and disposes three gas storage cylinders, so that the gas storage cylinders can be disposed in a relatively small space, thereby allowing a larger overall space and arranging other components. For example, the present invention can Before the nozzle 6 is moved to the rear wheel 13, especially when three or four sweeping discs are used, three or four sweeping discs, the boom and the nozzle are used with respect to the two sweeping discs It is particularly difficult to provide between the front wheel 11 and the rear wheel 13, and the present invention solves this problem well by the above-described method of zeroing.布置 Layout of the road sweeper in this way makes the structure of the road sweeper more compact, which can reduce the length of the whole vehicle, reduce the weight, increase the flexibility of the road sweeper, and reduce the fuel consumption. Preferably, the road sweeper further includes a battery 8 disposed on the frame 2, and the battery 8 is dispersedly disposed with each of the air cylinders, for example, located at the rear of the right rear rear dial 43 of the frame and located at the right side of the suction nozzle 6. Above. The conventional battery 8 is usually located near the right front dial 31 and is disposed with a plurality of air reservoirs. The invention separates the storage battery from the air storage cylinder and has the effects of being reduced to zero and compact. Preferably, the road sweeper further includes a fuel tank 9 disposed on the frame 2, and the fuel tank 9 is dispersedly disposed with each of the air reservoirs and the battery 8, for example, located at the rear of the left rear rear dial 51 on the left side of the frame and located at the suction Above the left side of the mouth 6. Thus, the left side of the road sweeper is provided with a first air reservoir 71 and a fuel tank 9, and the right side of the road sweeper is provided with a second air reservoir 72, a third air reservoir 73 and a battery 8. Because the weight of the fuel tank is heavier, the road sweeper basically achieves the weight balance on the left and right sides on the basis of compact structure and optimized structure, which is conducive to the stability of the road sweeper operation. It can be seen that the dispersing arrangement of the energy storage devices such as the air reservoir, the battery 8 and the fuel tank 9 all contribute to the arrangement of the sweeping disc, the spray bar and the suction nozzle. Preferably, the suction nozzle 6 is detachably coupled to the frame 2, for example, the nozzle body 63 is screwed to the frame 2. In this way, quick disassembly of the suction nozzle 6 can be achieved to facilitate maintenance and replacement. Of course, the nozzle body 63 and the frame 2 can also be connected by other detachable means, such as a snapping manner, that is, the nozzle body 63 and the frame 2 are respectively arranged to be engaged with each other, and also The rod member can be passed through the nozzle body 63 and the frame 2, and then clamped by the C-shaped ring. The following describes the working process of the road sweeper: While the vehicle is moving forward, the front sweeping ^! The garbage on both sides of the sweeping car is swept to the middle of the vehicle, and then the rear plate is swept to ensure that the garbage is swept in front of the suction port 65 of the suction nozzle 6. At the same time, the fan-shaped high-pressure water curtain sprayed by a plurality of nozzles on both sides flushes the road surface with a suitable rake angle and internal inclination angle, and the sewage flows forever in front of the suction port of the nozzle; the inner spray rod 55 After the fan-shaped high-pressure water curtain sprayed by the plurality of nozzles washes the road surface, it is bounced or sent by the airflow to the suction port area in the suction nozzle. The suction nozzle 6 is connected to a garbage can (not shown) in the road sweeping vehicle through the suction pipe 67. The inside of the garbage can generates a vacuum under the action of the fan, so that a negative pressure is generated inside the suction port 65, and a flow direction is formed. High-speed airflow from the bin. The garbage and sewage reaching the suction zone i or the suction zone i are continuously conveyed to the garbage can by the high-speed airflow, thereby completing various road cleaning operations such as road cleaning, road cleaning, garbage collection and sewage collection. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

Claim

A road washing vehicle comprising a vehicle chassis, a sweeping disk, a suction nozzle (6) and a spray bar, the automobile chassis comprising a front wheel (11), a rear wheel (13) and a frame (2), characterized in that The sweeping disc, the spray bar and the suction nozzle (6) are both disposed between the front wheel (11) and the rear wheel (13).

2. The road sweeper according to claim 1, wherein the suction nozzle (6) comprises a lifting mechanism (61) and a nozzle body (63), and the lifting mechanism (61) connects the suction a mouth body (63) and the frame (2).

A road sweeper according to claim 2, wherein said sweeping wheel is provided on said frame (2), and said spray bar is fixed to said nozzle body (63).

4. The road sweeper according to claim 2, wherein the nozzle (6) further comprises a nozzle wheel (551) disposed on the nozzle body (63), the nozzle Wheels (551) are disposed on both sides of the nozzle body (63).

The road sweeper according to claim 4, wherein the spray bar includes a side spray bar disposed outside the nozzle body (63) and disposed inside the nozzle body (63) An inner spray bar (55), the side spray bar includes a left side spray bar (51) and a right side spray bar (53), each of the side spray bars including a fixed spray bar and a swing spray bar, the fixed spray Rod and the nozzle

(6) a fixed connection, the oscillating spray bar being movably connected to the fixed spray bar.

6. The road sweeper according to claim 1, wherein the number of the sweeping disks is at least three.

The road sweeper according to any one of claims 1 to 6, further comprising a sub-frame (21) connected to the frame (2), the sub-frame ( 21) at least one energy storage device is disposed, and at least one of the energy storage devices is dispersedly disposed in at least two.

The road sweeper according to claim 7, wherein the energy storage device comprises an air reservoir, and the air reservoir comprises a first air reservoir (71) and a second air reservoir (72) disposed in a distributed manner. And a third air reservoir (73).

The road sweeper according to claim 8, characterized in that the energy storage device further comprises a battery (8), and the battery (8) is dispersedly disposed with the respective air reservoirs.

10. The road sweeper according to claim 9, wherein the energy storage device further comprises a fuel tank (9), the fuel tank (9) and the respective air reservoirs and the battery (8) ) Decentralized settings.

The road sweeper according to any one of claims 1 to 6, characterized in that the suction nozzle (6) and the frame (2) are detachably connected.