CN113174892B - Split type floating suction nozzle system and sanitation vehicle - Google Patents
Split type floating suction nozzle system and sanitation vehicle Download PDFInfo
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- CN113174892B CN113174892B CN202110479506.5A CN202110479506A CN113174892B CN 113174892 B CN113174892 B CN 113174892B CN 202110479506 A CN202110479506 A CN 202110479506A CN 113174892 B CN113174892 B CN 113174892B
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- suction nozzle
- roller
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- suction
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- 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
-
- 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
- E01H2001/0881—Details for pneumatically dislodging or removing not related to the mouth-piece
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
- Cleaning In General (AREA)
Abstract
The application discloses split type suction nozzle system that floats includes: the suction nozzle comprises a suction nozzle body with a suction cavity and a plurality of rollers which are fixedly arranged on the suction nozzle body and provide rolling support for the suction nozzle body, and the suction nozzle body is formed by splicing a plurality of suction nozzle split bodies through deformable connecting pieces; the floating lifting system is respectively connected with each roller of the suction nozzle and used for dynamically controlling each roller to lift according to the current contact pressure of each roller so as to keep the constant contact pressure between each roller and the ground. On one hand, the suction nozzle is divided into a plurality of parts, and each part is independently controlled, so that the suction nozzle has better suction capacity; on the other hand, the floating lifting system transfers the lifting points of the suction nozzles from the suction nozzle body to the rollers for bearing the suction nozzles, so that the condition that the stress of the rollers is unbalanced due to the uneven quality of the suction nozzle body is reduced, and the stress of each roller can be kept consistent.
Description
Technical Field
The application relates to the field of sanitation equipment, in particular to a split type floating suction nozzle system and a sanitation vehicle.
Background
At present, most sanitation vehicles use suction nozzles to pick up garbage existing on the ground or garbage blown by a sweeping disc during the operation process. When the conventional sweeper is used for sweeping, the upper end of the suction nozzle is connected with the chassis through the structural part, the suction nozzle is supported by the roller on the suction nozzle to move forwards along with the sweeper, and most of the weight of the suction nozzle is borne by the roller, so that the roller is seriously abraded in the working process.
In order to change the current situation, a part of the sweeper truck uses a spring to pull the suction nozzle above the suction nozzle, so as to provide upward pulling force for the suction nozzle, and further reduce the pressure born by the roller; some of the cleaning vehicles use a hydraulic cylinder to provide upward pulling force to achieve the floating effect of the suction nozzle (for example, in patent: CN201510099066, a hydraulic system for achieving the floating of the cleaning disc/suction nozzle of the sanitation vehicle) however, there are several disadvantages in using a spring to provide pulling force to the suction nozzle: the length range of the spring capable of providing the pulling force is limited, and each trolley needs to be independently adjusted to reach the proper length during assembly, so that the assembly is inconvenient; and when the whole car is fully loaded, the suspension point of the spring also can be descended, the distance between the spring and the suction nozzle also can be shortened, and the pulling force provided by the spring also can be reduced, so that the pulling force provided by the spring is unstable, and the effect of reducing the abrasion is general by reducing the weight born by the roller. The oil cylinder is used for stretching the suction nozzle, upward pulling force is provided for the suction nozzle, the problem that the spring pulls the suction nozzle can be solved, and the characteristics of the suction nozzle during working are not considered no matter the spring is used for pulling or the oil cylinder is used for pulling: the suction nozzle is a very big complete rigid plane, and two oil cylinders are usually used for lifting in the middle of the suction nozzle, so when the suction nozzle works in an uneven place, the suction nozzle can be washed unclean or the local roller wheel is stressed too heavily to cause abrasion, and under the condition, the gap between the local part of the suction nozzle and the ground becomes very large, so that the negative pressure value of the suction nozzle is reduced, and the condition of insufficient suction force is caused.
Disclosure of Invention
This application provides a split type suction nozzle system that floats to the suction nozzle of solving current sanitation vehicle appears local gyro wheel atress overweight and leads to wearing and tearing, the not enough technical problem of suction power at unevenness place during operation.
The technical scheme adopted by the application is as follows:
a split floating nozzle system, comprising:
the suction nozzle comprises a suction nozzle body with a suction cavity and a plurality of rollers which are fixedly arranged on the suction nozzle body and provide rolling support for the suction nozzle body, and the suction nozzle body is formed by splicing a plurality of suction nozzle split bodies through deformable connecting pieces;
and the floating lifting system is respectively connected with each roller of the suction nozzle and is used for dynamically controlling each roller to ascend and descend according to the current contact pressure of each roller so as to keep the constant contact pressure between each roller and the ground.
Further, the deformable connecting piece is made of canvas, plastic, rubber or a high polymer material.
Further, the number of the suction nozzle split bodies is consistent with that of the rollers.
Further, the floating lift system comprises:
the plurality of floating lifting devices are arranged in parallel and are respectively connected with the corresponding rollers and used for driving each roller to lift;
the pressure sensors are respectively arranged on the rollers and used for acquiring the contact pressure of the rollers and the ground in real time;
and the controller is respectively in circuit connection with the pressure sensors and the floating lifting devices and is used for controlling the floating lifting devices to apply matched acting force to corresponding rollers according to the contact pressure acquired by the pressure sensors so as to keep the rollers and the ground at constant contact pressure.
Further, the floating lift device includes:
the electromagnetic reversing valve is connected with the controller circuit, and a port P of the electromagnetic reversing valve is connected with a vehicle-mounted pressure medium output device;
the electronic control pressure reducing valve is connected with the controller circuit, and the input end of the electronic control pressure reducing valve is connected with a port B of the electromagnetic directional valve;
two input ends of the shuttle valve are respectively connected with the port A of the electromagnetic directional valve and the output end of the electric control pressure reducing valve;
and one end of the lifting cylinder is connected with the vehicle body, the other end of the lifting cylinder is connected with the corresponding roller, and a rod cavity of the lifting cylinder is connected with the output end of the shuttle valve.
Furthermore, the electromagnetic directional valve, the electric control pressure reducing valve, the shuttle valve and the lifting cylinder are all air pressure control parts.
Further, the vehicle-mounted pressure medium output device comprises a chassis gas taking device, an auxiliary gas tank, a manual gas valve and a filter which are sequentially connected through a pipeline.
Furthermore, the electromagnetic directional valve, the electric control pressure reducing valve, the shuttle valve and the lifting cylinder are all hydraulic control parts.
Further, the vehicle-mounted pressure medium output device comprises a hydraulic oil tank, a hydraulic pump and a hydraulic filter which are sequentially connected through pipelines, and the hydraulic pump is in driving connection with the chassis power takeoff.
This application another aspect still provides a sanitation car, adopts split type floating suction nozzle system.
The application has the following beneficial effects:
the application provides a split type floating suction nozzle system and a sanitation vehicle, wherein the split type floating suction nozzle system comprises a suction nozzle and a floating lifting system, the suction nozzle comprises a suction nozzle body with a suction cavity and a plurality of idler wheels which are fixedly arranged on the suction nozzle body and provide rolling support for the suction nozzle body, and the suction nozzle body is formed by splicing a plurality of suction nozzle split bodies through deformable connecting pieces; the floating lifting system is respectively connected with each roller of the suction nozzle and used for driving each roller to lift so as to keep constant contact pressure between each roller and the ground. On one hand, the suction nozzle is divided into a plurality of parts, and each part is independently controlled, so that the suction nozzle can generate certain deformation to be attached to the ground during operation, the adaptability of the suction nozzle to different grounds, particularly uneven grounds, is improved, and the suction nozzle has better suction capacity; on the other hand, the lifting point of suction nozzle is shifted to each gyro wheel department that the suction nozzle bearing was used from the suction nozzle body to the lift system that floats of this application to reduce the condition because of the uneven gyro wheel atress that leads to of suction nozzle body quality is unbalanced, make the atress of every gyro wheel can both keep unanimous, not only avoid appearing the excessive wearing and tearing of local gyro wheel, the wearing and tearing of reducible all gyro wheels moreover.
In addition to the objects, features and advantages described above, other objects, features and advantages will be apparent from the present application. The present application will now be described in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application. In the drawings:
fig. 1 is a schematic structural view of a floating lift system of a split floating nozzle assembly according to a preferred embodiment of the present application.
Fig. 2 is a schematic view of the nozzle structure of the split floating nozzle system according to the preferred embodiment of the present application.
Fig. 3 is a partial schematic view of the floating lift system of the split floating nozzle assembly of the preferred embodiment of the present application.
Fig. 4 is a schematic structural view of a floating lift system of a split floating nozzle assembly according to another preferred embodiment of the present application.
In the figure:
1. a chassis air intake device; 2. an auxiliary gas tank; 3. a manual air valve; 4. a filter; 5. an electromagnetic directional valve; 6. a shuttle valve; 7. an electrically controlled pressure relief valve; 8. a lift cylinder; 9. a pressure sensor; 10. a roller; 11. a suction nozzle right front portion; 12. a right rear portion of the suction nozzle; 13. a left rear portion of the suction nozzle; 14. a suction nozzle left front portion; 15. a deformable connector; 16. a controller; 17. a hydraulic oil tank; 18. a chassis power takeoff; 19. a hydraulic pump; 20. and a hydraulic filter.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.
Referring to fig. 1 and 2, a preferred embodiment of the present application provides a split floating nozzle system including:
the suction nozzle comprises a suction nozzle body with a suction cavity and four rollers 10 fixedly arranged on the suction nozzle body and used for providing rolling support for the suction nozzle body, the suction nozzle body is formed by splicing four suction nozzle split bodies through deformable connecting pieces 15, and the deformable connecting pieces 15 are made of canvas, plastic, rubber or high polymer materials;
and the floating lifting system is respectively connected with each roller 10 of the suction nozzle and is used for dynamically controlling each roller 10 to ascend and descend according to the current contact pressure of each roller 10 so as to keep the constant contact pressure between each roller 10 and the ground.
The existing sweeper picks up the existing garbage on the ground or the garbage blown by a sweeping disc through a suction nozzle during working, the common suction nozzle in the market is a whole rigid structure, four rollers 10 are used for providing rolling supporting force for the suction nozzle at four corners of the whole rigid structure, and the sweeper walks forwards through the rollers 10. In the suction nozzle course of operation, what first to guarantee is the laminating degree of suction nozzle and ground, if the suction nozzle baffle all around has great clearance with ground, then can make the suction nozzle adsorption affinity reduce, if when the suction nozzle was worked in unevenness's place, the clearance between the part of current suction nozzle structure and the ground can become very big, lead to the negative pressure value of suction nozzle to reduce, thereby the not enough condition of suction affinity appears, in addition, because the integral structure of unevenness and suction nozzle on ground, also lead to partly gyro wheel 10 atress too big easily, cause the wearing and tearing of each gyro wheel 10 inconsistent, cause local gyro wheel 10 premature damage.
In view of the above, the present embodiment provides a split floating suction nozzle system, which includes a suction nozzle and a floating lifting system, wherein the suction nozzle includes a suction nozzle body having a suction cavity, and a plurality of rollers 10 fixedly disposed on the suction nozzle body for providing rolling support for the suction nozzle body, and the suction nozzle body is formed by splicing a plurality of suction nozzle split bodies through a deformable connecting member 15; the floating lifting system is respectively connected with each roller 10 of the suction nozzle and used for driving each roller 10 to lift so as to keep constant contact pressure between each roller 10 and the ground.
This embodiment divides the nozzle into four parts on the one hand, namely: the suction nozzle comprises a suction nozzle right front part 11, a suction nozzle right rear part 12, a suction nozzle left rear part 13 and a suction nozzle left front part 14, wherein the four parts are connected through a deformable connecting piece 15 and are provided with idler wheels 10 in various installation modes, each part is controlled independently, so that the suction nozzle is not a whole rigid structure any more, a certain deformation can be generated during the operation of the suction nozzle, and the suction nozzle is attached to the ground as far as possible; on the other hand, the floating lift system of the present embodiment transfers the lifting point of the suction nozzle from the suction nozzle body to each roller 10 for the suction nozzle bearing, dynamically controlling the rollers 10 to ascend and descend according to the current contact pressure of the rollers 10 to keep the rollers 10 at a constant contact pressure with the ground, thereby reducing the condition of unbalanced stress of the roller 10 caused by uneven mass of the suction nozzle body, keeping the stress of each roller 10 consistent, not only avoiding excessive abrasion of the local roller 10, but also reducing the abrasion of all the rollers 10, that is, the weight of the roller 10 given by the suction nozzle can be reduced as much as possible, and the suction capacity of the suction nozzle can be ensured under the condition of ensuring the attachment with the ground, and moreover, the stress of each roller 10 is small and balanced, the roller has certain self-adaptive capacity, the abrasion is reduced, the service life of each roller 10 is prolonged, and therefore the maintenance and use cost of the suction nozzle is reduced.
Since the weight of the suction nozzle cannot be uniformly distributed, the weight of each plate is different, and the stress of each roller 10 cannot be balanced in the conventional scheme, so that the roller 10 at a certain position is excessively worn under the action of excessive pressure for a long time. Compare in conventional scheme and pull up the wearing and tearing that the suction nozzle body reduced gyro wheel 10 through hydro-cylinder or cylinder, this embodiment is then more direct, directly promotes gyro wheel 10 through the lift system that floats and reduces gyro wheel 10's atress, and the atress of assurance gyro wheel 10 that is more effective is balanced and self-adaptation faster. That is to say, this embodiment is through carrying out the independent control to every gyro wheel 10 and the four suction nozzle components of a whole that can function independently that bear, realizes the real-time laminating of suction nozzle and different road conditions, promotes the work effect that the suction nozzle adsorbs rubbish, dust to reduce the wearing and tearing of gyro wheel 10.
In the preferred embodiment of the present application, the floating lift system comprises four floating lifts, four pressure sensors 9, a controller 16.
The four floating lifting devices are arranged in parallel and are respectively connected with the corresponding idler wheels 10 and used for driving each idler wheel 10 to lift;
the four pressure sensors 9 are respectively arranged on the rollers 10 and used for acquiring the contact pressure of each roller 10 and the ground in real time;
the controller 16 is respectively connected with the four pressure sensors 9 and the four floating lifting devices in a circuit manner, and is used for controlling each floating lifting device to apply a matched acting force to the corresponding roller 10 according to the contact pressure acquired by each pressure sensor 9, so that each roller 10 keeps constant contact pressure with the ground.
Specifically, the floating lifting device comprises an electromagnetic directional valve 5, an electronic control pressure reducing valve 7, a shuttle valve 6 and a lifting cylinder 8.
The electromagnetic directional valve 5 is in circuit connection with the controller 16, and a port P of the electromagnetic directional valve is connected with a vehicle-mounted pressure medium output device;
the electric control pressure reducing valve 7 is in circuit connection with the controller 16, and the input end of the electric control pressure reducing valve is connected with a port B of the electromagnetic directional valve 5;
two input ends of the shuttle valve 6 are respectively connected with the port A of the electromagnetic directional valve 5 and the output end of the electric control pressure reducing valve 7;
one end of the lifting cylinder 8 is connected with the vehicle body, the other end is connected with the corresponding roller 10, and a rod cavity of the lifting cylinder is connected with the output end of the shuttle valve 6.
In the preferred embodiment of the application, the electromagnetic directional valve 5, the electronic control pressure reducing valve 7, the shuttle valve 6 and the lifting cylinder 8 are all air pressure control elements, wherein the vehicle-mounted pressure medium output device comprises a chassis air taking device 1, an auxiliary air tank 2, a manual air valve 3 and a filter 4 which are sequentially connected through pipelines.
In the preferred embodiment of the present application, as shown in fig. 4, the electromagnetic directional valve 5, the electrically controlled pressure reducing valve 7, the shuttle valve 6 and the lifting cylinder 8 are all hydraulic control elements, wherein the vehicle-mounted pressure medium output device comprises a hydraulic oil tank 17, a hydraulic pump 19 and a hydraulic filter 20 which are connected in sequence through pipelines, the hydraulic pump 19 is in driving connection with the chassis power takeoff 18, and the chassis power takeoff 18 takes power from the transmitter to provide mechanical power for the hydraulic pump 19.
The operation principle of the present embodiment will be described in detail below.
Reducing wear on the roller 10, i.e., reducing friction on the roller 10, is currently possible by reducing the forces to which the roller 10 is subjected.
During the operation of the suction nozzle, the roller 10 is subjected to four forces:
1. the supporting force F on the ground is upward ×) in the direction;
2. the self-gravity G of the suction nozzle faces downwards ↓;
3. acting force F of suction nozzle lifting cylinder 8 Cylinder The direction is upward ↓;
4. negative pressure F generated by suction nozzle during operation Negative pressure Direction ↓downward.
Therefore, the supporting force F of the roller 10 is equal to the suction nozzle gravity G + the negative pressure F Negative pressure Force F of lifting cylinder Cylinder 。
Of the four forces mentioned above, the suction nozzle gravity G is a fixed value, while the suction nozzle negative pressure F Negative pressure The acting force F of the lifting cylinder 8 needs to be regulated and controlled in real time along with the change of the rotating speed of the fan during working Cylinder To ensure that the supporting force F of the roller 10 can be stabilized at a desired stress value of the roller 10 being worn.
As shown in fig. 3, since the operation of each roller 10 in the above embodiment is similar, taking the right front portion 11 of the suction nozzle and the corresponding roller 10 as an example, when the floating lifting device is an air pressure system, the specific operation process is as follows:
suction nozzle lifting process
The upper pneumatic system takes gas from the chassis through the chassis gas taking device 1, stores the gas through the auxiliary gas tank 2, and reaches the electromagnetic directional valve 5 through the manual gas valve 3 and the filter 4; in the default state, the electromagnetic directional valve 5 is in the left position, and the air flows to the port a through the port P of the electromagnetic directional valve 5, and then flows from the port a of the electromagnetic directional valve 5 to the left side of the shuttle valve 6, because the right side of the shuttle valve 6 has no pressure at this time, the high-pressure air from the chassis pushes the shuttle valve 6, and the high-pressure air on the left side passes through and flows to the rod cavity of the lifting cylinder 8, so that the front right part 11 of the suction nozzle and the roller 10 are lifted.
Suction nozzle float and adaptation process
When the environmental sanitation sweeper needs to work on the road, the controller 16 sends a control signal to the electromagnetic directional valve 5 to change the direction of the electromagnetic directional valve 5, the working position of the electromagnetic directional valve 5 is changed from the left side to the right side, at the moment, high-pressure gas from the chassis flows to the port B through the port P of the electromagnetic directional valve 5 and flows to the electronic control pressure reducing valve 7 from the port B of the electromagnetic directional valve 5, at the moment, the set pressure of the electronic control pressure reducing valve 7 is a default value which is set through calculation, therefore, the reduced high-pressure gas reaches the right side of the shuttle valve 6, at the moment, no pressure exists on the left side of the shuttle valve 6, the high-pressure gas from the electronic control pressure reducing valve 7 pushes the shuttle valve 6, the right high-pressure gas flows to the rod cavity of the lifting cylinder 8, so that the suction nozzle is descended against the dead weight and simultaneously gives an upward pulling force to the suction nozzle.
When the environmental sanitation sweeper starts to work, the fan for sucking and picking up the garbage starts to work, the garbage such as fallen leaves, stones or dust is picked up through the air duct on the suction nozzle, and at the moment, the suction nozzle is subjected to downward negative pressure, and the roller 10 on the suction nozzle can bear larger friction force. When the fan works at different rotating speeds, the generated negative pressure values are different.
The pressure value that controller 16 gathered through pressure sensor 9 on the detection gyro wheel 10 to PLC programmable control device through in the controller 16 calculates, reach the corresponding pulling force that the lift jar 8 in the pneumatic system need provide this moment, thereby the conversion reachs the pressure value on the automatically controlled relief pressure valve 7, adjust automatically controlled relief pressure valve 7 through controller 16 afterwards, change the pressure value of automatically controlled relief pressure valve 7 output, realize accurate control, the pressure that lets gyro wheel 10 on the suction nozzle bear is at reasonable within range. When the roller 10 of the part meets the uneven ground, the controller 16 can rapidly and actively adjust the electrically controlled pressure reducing valve 7 through the pressure value fed back by the pressure sensor 9, so that the right front part 11 of the suction nozzle and the roller 10 of the suction nozzle can be more rapidly adaptive to the ground.
The control process of other suction nozzle split bodies and the idler wheel 10 thereof is similar to that of the suction nozzle right front part 11 and the idler wheel 10 corresponding thereto, and similarly, when the floating lifting device is a hydraulic system, the specific working process is similar to that of the above embodiment, and no further description is given here, and a person skilled in the art can perform corresponding setting and adjustment as required.
The preferred embodiment of this application still provides a sanitation car, adopts split type floating nozzle system described in above-mentioned embodiment.
In summary, the above embodiments of the present application divide the suction nozzle into different blocks according to the number and position of the rollers 10, so that the suction nozzle can better adapt to different grounds; meanwhile, the lifting point of the suction nozzle is transferred to each roller 10 for bearing the suction nozzle from the suction nozzle body in the embodiment, so that the condition that the stress of the rollers 10 is unbalanced due to the uneven quality of the suction nozzle body is reduced, and the stress of each roller 10 can be kept consistent; in addition, the above embodiment can actively adjust the output pressure of the electrically controlled pressure reducing valve 7 through the pressure sensor 9 and the controller 16, so that the roller 10 can be adapted to different ground surfaces more quickly, and the applicability and the automation degree are greatly improved.
The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.
Claims (9)
1. A split floating nozzle system, comprising:
the suction nozzle comprises a suction nozzle body with a suction cavity and a plurality of rollers (10) which are fixedly arranged on the suction nozzle body and provide rolling support for the suction nozzle body, and the suction nozzle body is formed by splicing a plurality of suction nozzle split bodies through deformable connecting pieces (15);
the floating lifting system is respectively connected with each roller (10) of the suction nozzle and is used for dynamically controlling each roller (10) to lift according to the current contact pressure of each roller (10) so as to keep the constant contact pressure between each roller (10) and the ground; the floating lift system comprises:
the floating lifting devices are arranged in parallel and are respectively connected with the corresponding rollers (10) and used for driving each roller (10) to lift; the pressure sensors (9) are respectively arranged on the rollers (10) and are used for acquiring the contact pressure of the rollers (10) and the ground in real time; the controller (16) is respectively in circuit connection with the pressure sensors (9) and the floating lifting devices and is used for controlling the floating lifting devices to apply matched acting force to the corresponding rollers (10) according to the contact pressure acquired by the pressure sensors (9) so as to keep the rollers (10) and the ground at constant contact pressure; the floating lift device includes: the electromagnetic directional valve (5), the electromagnetic directional valve (5) is connected with the controller (16) through a circuit, and a port P of the electromagnetic directional valve is connected with a vehicle-mounted pressure medium output device; the electronic control pressure reducing valve (7), the electronic control pressure reducing valve (7) is connected with the controller (16) through a circuit, and the input end of the electronic control pressure reducing valve is connected with a port B of the electromagnetic directional valve (5); the two input ends of the shuttle valve (6) are respectively connected with the port A of the electromagnetic directional valve (5) and the output end of the electric control pressure reducing valve (7); and one end of the lifting cylinder (8) is connected with the vehicle body, the other end of the lifting cylinder (8) is connected with the corresponding roller (10), and a rod cavity of the lifting cylinder is connected with the output end of the shuttle valve (6).
2. The split floating nozzle system of claim 1,
the deformable connecting piece (15) is made of canvas, plastic or rubber.
3. The split floating nozzle system of claim 1,
the deformable connecting piece (15) is made of high polymer materials.
4. The split floating nozzle system of claim 1, wherein:
the number of the suction nozzle split bodies is consistent with that of the idler wheels (10).
5. The split floating nozzle system of claim 1, wherein:
the electromagnetic directional valve (5), the electric control pressure reducing valve (7), the shuttle valve (6) and the lifting cylinder (8) are all air pressure control parts.
6. The split floating nozzle system of claim 5, wherein:
the vehicle-mounted pressure medium output device comprises a chassis gas taking device (1), an auxiliary gas tank (2), a manual gas valve (3) and a filter (4) which are sequentially connected through pipelines.
7. The split floating nozzle system of claim 1, wherein:
the electromagnetic directional valve (5), the electric control pressure reducing valve (7), the shuttle valve (6) and the lifting cylinder (8) are all hydraulic control parts.
8. The split floating nozzle system of claim 7, wherein:
the vehicle-mounted pressure medium output device comprises a hydraulic oil tank (17), a hydraulic pump (19) and a hydraulic filter (20) which are sequentially connected through pipelines, and the hydraulic pump (19) is in driving connection with a chassis power takeoff (18).
9. A sanitation vehicle employing a split floating nozzle system as claimed in any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110479506.5A CN113174892B (en) | 2021-04-30 | 2021-04-30 | Split type floating suction nozzle system and sanitation vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110479506.5A CN113174892B (en) | 2021-04-30 | 2021-04-30 | Split type floating suction nozzle system and sanitation vehicle |
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| Publication Number | Publication Date |
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| CN113174892A CN113174892A (en) | 2021-07-27 |
| CN113174892B true CN113174892B (en) | 2022-08-16 |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2640147A1 (en) * | 2007-09-25 | 2009-03-25 | Roger P. Vanderlinden | Variable width pick-up head for a mobile sweeper |
| CN103215883A (en) * | 2013-04-03 | 2013-07-24 | 江苏华通动力重工有限公司 | Self-feedback floating scraping system of pavement milling machine |
| CN105603919B (en) * | 2014-11-07 | 2018-02-06 | 长沙中联重科环境产业有限公司 | Suction nozzle and cleaning car |
| CN110820656A (en) * | 2018-08-10 | 2020-02-21 | 郑州宇通重工有限公司 | Sanitation car and suction nozzle device thereof |
| CN209114408U (en) * | 2018-10-15 | 2019-07-16 | 长沙捷尔美环卫机械设备有限公司 | A kind of road cleaning suction nozzle |
| CN110884591A (en) * | 2019-11-12 | 2020-03-17 | 广东博智林机器人有限公司 | Steering wheel floating support device and AGV chassis with same |
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