Auxiliary engine driven double-fan structure and high-speed sweeper truck

Abstract

The utility model relates to the technical field of road cleaning, and provides an auxiliary engine driven double-fan structure and a high-speed road sweeper. The output end of an auxiliary engine is connected with the input end of a belt wheel transmission assembly, the output end of the belt wheel transmission assembly is connected with a first fan, an adjusting plate is arranged on a mounting frame, and an adjusting frame is movably arranged on the upper portion of the adjusting plate through a first connecting piece; a tensioning wheel is rotationally arranged on the adjusting frame and abuts against a transmission belt of the belt wheel transmission assembly. A negative pressure pipeline is arranged at the top in the compartment and communicated with air inlets of the first fan and the second fan, two dust suction nozzles are symmetrically arranged below the chassis, connected with the first fan and the second fan respectively and connected with an inner cavity of the compartment through a suction and pickup pipeline, and the blocking cover is located above an outlet of the suction and pickup pipeline. The belt wheel transmission assembly is low in maintenance cost, and the transmission efficiency, the stability and the service life of the belt wheel transmission assembly are optimized by adjusting the position of the tensioning wheel.

Description

Technical Field

[0001] This utility model relates to the field of highway cleaning technology, and in particular to a dual-fan structure driven by an auxiliary engine and a high-speed sweeper. Background Technology

[0002] A high-speed sweeper truck is a sanitation vehicle specifically designed for the rapid and efficient cleaning of large areas such as roads, plazas, and airport runways. It combines high-speed driving capability with powerful sweeping power, enabling it to complete large-scale cleaning tasks in a short time, making it suitable for scenarios with high cleaning efficiency requirements.

[0003] Traditional sweepers rely on a single fan system, which is prone to airflow turbulence when running at high speeds, leading to secondary dust pollution. In addition, using the main engine to directly drive the fan results in energy loss of up to 25-30%. While existing sweepers use an auxiliary engine to drive the fan, completely separating it from the main engine that drives the vehicle, thus avoiding power diversion from the main engine and ensuring that driving and operation do not interfere with each other, they mostly use direct drive or gearbox drive. Direct drive is completely coupled and cannot be flexibly adjusted. The rated speeds of the engine and the fan need to be matched. Gearbox drive has high maintenance complexity, large efficiency loss, and requires an additional oil pump to lubricate the gears, resulting in higher costs.

[0004] Therefore, to address the above problems, a dual-fan structure driven by a secondary engine and a high-speed sweeper are proposed to solve these problems. Utility Model Content

[0005] This invention addresses the shortcomings of existing technologies by developing a dual-fan structure driven by a secondary engine and a high-speed road sweeper. This invention uses a pulley drive assembly that is easy to replace and maintain, has low maintenance costs, can isolate some vibrations, and ensures stable operation of the transmission system. By adjusting the position of the tension wheel, the transmission efficiency, stability, and lifespan of the pulley drive assembly are optimized.

[0006] The technical solution to the technical problem solved by this utility model is as follows: This utility model provides a dual-fan structure driven by an auxiliary engine, including an auxiliary engine, a first fan and a second fan, and also includes a pulley transmission assembly and a tensioning assembly. The output end of the auxiliary engine is connected to the input end of the pulley transmission assembly, and the output end of the pulley transmission assembly is connected to the first fan. The first fan and the second fan are connected by a coupling. The tensioning assembly includes a tensioning wheel and a support member for adjusting the position of the tensioning wheel. The support member includes a mounting frame, an adjusting plate and an adjusting bracket. The adjusting plate is set on the mounting frame, and the adjusting bracket is movably set on the upper part of the adjusting plate through a first connecting member. The tensioning wheel is rotatably set on the adjusting bracket, and the tensioning wheel abuts against the transmission belt of the pulley transmission assembly.

[0007] As an optimization, the support also includes a first support plate and a second support plate. The second support plate is horizontally arranged at the lower part of the adjustment plate, and the first support plate is arranged at the bottom of the adjustment frame. The first support plate and the second support plate are connected by a second connector, and the first support plate and the second support plate are parallel.

[0008] As an optimization, the second connector includes a second bolt, a second nut, a third nut, and a fourth nut. Bolt holes are opened at corresponding positions on the first support plate and the second support plate. The second bolt passes through the first support plate and the second support plate in sequence. The top of the second nut abuts against the bottom of the first support plate. The bottom of the third nut and the top of the fourth nut abut against the top and bottom of the second support plate, respectively.

[0009] As an optimization, the first connecting member includes a first bolt and a first nut. Elongated holes are symmetrically opened at both ends of the adjusting plate, and bolt holes corresponding to the elongated holes are symmetrically opened at both ends of the adjusting frame. The first bolt passes through the bolt hole of the adjusting frame and the elongated hole of the adjusting plate in sequence and is threadedly connected to the first nut.

[0010] As an optimization, the belt drive assembly also includes a driving wheel and a driven wheel. The output end of the auxiliary engine is connected to the driving wheel, and a drive belt is fitted on the outer wall of the driving wheel and the driven wheel. The driven wheel is connected to the first fan.

[0011] A high-speed sweeper includes the auxiliary engine-driven dual-fan structure described in any of the above claims, and also includes a cargo box and a chassis. The cargo box is mounted on the chassis, and a negative pressure pipe is installed on the top of the cargo box. The first fan, the second fan, the auxiliary engine, the pulley drive assembly, and the tensioning assembly are all mounted on the chassis and located at the front end of the cargo box. The negative pressure pipe is connected to the air inlets of the first fan and the second fan. Two dust suction nozzles are symmetrically arranged below the chassis, and the two dust suction nozzles are respectively connected to the first fan and the second fan. The two dust suction nozzles are connected to the inner cavity of the cargo box through suction pipes. A baffle is also installed on the top of the cargo box, and the baffle is located above the outlet of the suction pipe.

[0012] As an optimization, a cleaning mechanism is also included, which is located under the chassis and in front of the suction nozzle.

[0013] As an optimization, the suction nozzle is connected to the chassis via a lifting mechanism.

[0014] The effects provided in the utility model description are merely those of the embodiments, and not all the effects of the utility model. The above technical solution has the following advantages or beneficial effects:

[0015] 1. By setting up a pulley drive assembly, the pulley diameter ratio can be adjusted to achieve speed ratio regulation. At the same time, the pulley drive assembly is easy to replace and maintain, and the maintenance cost is low. By setting up a tension wheel and a support component to adjust the position of the tension wheel, some vibration can be isolated to ensure the stable operation of the transmission system. The position of the adjusting frame is adjusted through the first connecting component, thereby adjusting the position of the tension wheel to optimize the transmission efficiency, stability and life of the pulley drive assembly.

[0016] 2. The tensioning pulley maintains the tension of the transmission belt, ensuring the friction between the transmission belt and the pulley, and preventing slippage due to loosening, which would affect the power transmission efficiency. When adjusting the position of the tensioning pulley 7, the adjusting bracket is moved until the tensioning pulley is moved to a suitable position, so that the bolt holes of the adjusting bracket correspond to the elongated holes on the adjusting plate. Then, the adjusting bracket and the adjusting plate are fixed by the first bolt and the first nut. Then, the first support plate and the second support plate are fixed by the second connecting piece to support the tensioning pulley. Attached Figure Description

[0017] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0018] Figure 1 This is a diagram showing the internal structure of the high-speed sweeper truck of this utility model;

[0019] Figure 2 This is an overall structural diagram of the high-speed sweeper truck of this utility model;

[0020] Figure 3 This is a front view of the belt drive assembly of this utility model;

[0021] Figure 4 This utility model Figure 1 Enlarged view of point A in the middle.

[0022] In the diagram, 1. Auxiliary engine; 2. First fan; 3. Second fan; 4. Drive wheel; 5. Driven wheel; 6. Transmission belt; 7. Tensioner; 8. Mounting bracket; 9. Adjusting plate; 901. Long slot; 10. Adjusting bracket; 11. First support plate; 12. Second support plate; 13. Second bolt; 14. Second nut; 15. Third nut; 16. Fourth nut; 17. First bolt; 19. Carriage; 20. Chassis; 21. Negative pressure pipeline; 22. Dust suction nozzle; 23. Suction pipeline; 24. Carriage door; 25. Cover; 26. Cleaning mechanism. Detailed Implementation

[0023] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Furthermore, the present invention may repeat reference numerals and / or letters in different examples. This repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. It should be noted that the components illustrated in the drawings are not necessarily drawn to scale. The present invention omits descriptions of well-known components and processing techniques and processes to avoid unnecessarily limiting the present invention. The terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate orientation or positional relationships based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figure 3 , Figure 4As shown, a dual-fan structure driven by an auxiliary engine includes an auxiliary engine 1, a first fan 2, and a second fan 3. It also includes a pulley drive assembly and a tensioning assembly. The output end of the auxiliary engine 1 is connected to the input end of the pulley drive assembly, and the output end of the pulley drive assembly is connected to the first fan 2. The first fan 2 and the second fan 3 are connected by a coupling. The tensioning assembly includes a tensioning wheel 7 and a support for adjusting the position of the tensioning wheel 7. The support includes a mounting frame 8, an adjusting plate 9, and an adjusting frame 10. The adjusting plate 9 is mounted on the mounting frame 8, and the adjusting frame 10 is movably mounted on the upper part of the adjusting plate 9 through a first connecting member. The tensioning wheel 7 is rotatably mounted on the adjusting frame 10, and the tensioning wheel 7 abuts against the drive belt 6 of the pulley drive assembly. The connection structure between the first fan 2 and the second fan 3 is existing technology and will not be described in detail here. By setting up a pulley drive assembly, the pulley diameter ratio can be adjusted to achieve speed ratio regulation. At the same time, the pulley drive assembly is easy to replace and maintain, and the maintenance cost is low. By setting up a tension wheel 7 and a support for adjusting the position of the tension wheel 7, some vibration can be isolated to ensure the stable operation of the transmission system. The position of the adjusting frame 10 is adjusted by the first connecting piece, thereby adjusting the position of the tension wheel 7 to optimize the transmission efficiency, stability and life of the pulley drive assembly.

[0025] In this embodiment, the support also includes a first support plate 11 and a second support plate 12. The second support plate 12 is horizontally arranged at the lower part of the adjusting plate 9, and the first support plate 11 is arranged at the bottom of the adjusting frame 10. The first support plate 11 and the second support plate 12 are connected by a second connector, and the first support plate 11 and the second support plate 12 are parallel.

[0026] The second connector includes a second bolt 13, a second nut 14, a third nut 15, and a fourth nut 16. Bolt holes are provided at corresponding positions on the first support plate 11 and the second support plate 12. The second bolt 13 passes through the first support plate 11 and the second support plate 12 in sequence. The top of the second nut 14 abuts against the bottom of the first support plate 11. The bottom of the third nut 15 and the top of the fourth nut 16 abut against the top and bottom of the second support plate 12, respectively.

[0027] The first connecting component includes a first bolt 17 and a first nut. The adjusting plate 9 has elongated holes 901 symmetrically opened at both ends. The adjusting frame 10 has bolt holes symmetrically opened at both ends that correspond to the elongated holes 901. The first bolt 17 passes through the bolt holes of the adjusting frame 10 and the elongated holes 901 of the adjusting plate 9 in sequence and is threadedly connected to the first nut.

[0028] The support component is located below the pulley drive assembly. Because an overly tight drive belt 6 will accelerate belt wear and even damage the pulley bearings, while an overly loose drive belt 6 will cause belt vibration or skipped teeth, resulting in abnormal wear and shortening the service life of the drive belt 6, a tensioning pulley 7 is needed to maintain the tension of the drive belt 6, ensuring the friction between the drive belt 6 and the pulley, and preventing slippage due to looseness, which would affect power transmission efficiency. When adjusting the position of the tensioning pulley 7, the adjusting bracket 10 is moved until the tensioning pulley 7 is in the appropriate position, aligning the bolt holes of the adjusting bracket 10 with the elongated holes 901 on the adjusting plate 9. Then, the adjusting bracket 10 is fixed to the adjusting plate 9 using the first bolt 17 and the first nut. Finally, the first support plate 11 and the second support plate 12 are fixed using the second connecting component to support the tensioning pulley 7.

[0029] In this embodiment, the belt drive assembly also includes a drive wheel 4 and a driven wheel 5. The output end of the auxiliary engine 1 is connected to the drive wheel 4. A drive belt 6 is sleeved on the outer wall of the drive wheel 4 and the driven wheel 5. The driven wheel 5 is connected to the first fan 2.

[0030] like Figures 1 to 4 As shown, a high-speed sweeper includes the auxiliary engine-driven dual-fan structure described in any of the above-mentioned embodiments, and also includes a carriage 19 and a chassis 20. The carriage 19 is mounted on the chassis 20. A negative pressure pipe 21 is installed on the top of the carriage 19. The first fan 2, the second fan 3, the auxiliary engine 1, the pulley drive assembly, and the tensioning assembly are all mounted on the chassis 20 and are all located at the front end of the carriage 19. The negative pressure pipe 21 is connected to the air inlets of the first fan 2 and the second fan 3. Two dust suction nozzles 22 are symmetrically arranged below the chassis 20. The two dust suction nozzles 22 are respectively connected to the first fan 2 and the second fan 3. The two dust suction nozzles 22 are connected to the inner cavity of the carriage 19 through a suction pipe 23. A baffle 25 is also installed on the top of the carriage 19, and the baffle 25 is located above the outlet of the suction pipe 23. Negative pressure pipe 21 generates negative pressure airflow, which is delivered to suction nozzle 22 to pick up garbage. The negative pressure airflow carries the garbage into suction pipe 23. A baffle 25 slows down the airflow, causing the garbage to separate from the airflow under gravity and fall into the compartment. A garbage discharge outlet is provided at the rear of the compartment 19, and a door 24 is provided at the garbage discharge outlet. The door 24 can be closed or opened hydraulically. The compartment 19 can also be hydraulically driven to rotate around its rear as a hinge point, allowing the garbage to be discharged from the compartment 19.

[0031] In this embodiment, a cleaning mechanism is also included. The cleaning mechanism is located at the lower part of the chassis 20 and in front of the suction nozzle 22. The cleaning mechanism is existing technology and will not be described in detail here. After the cleaning mechanism cleans up the garbage on the road, it is sucked into the carriage 19 by the suction nozzle 22.

[0032] The suction nozzle 22 is connected to the chassis 20 via a lifting mechanism. The lifting mechanism can be a hydraulic cylinder or a pneumatic cylinder, etc., which are existing technologies and will not be described in detail here. By setting up the lifting mechanism, the height of the suction nozzle 22 from the ground can be adjusted so that it can adapt to uneven road surfaces.

[0033] Instructions for use: When cleaning the highway surface, adjust the position of the tension wheel 7 through the support, then start the auxiliary engine 1 to drive the first fan 2 and the second fan 3 to rotate. The cleaning mechanism cleans the road surface, and the suction nozzle 22 picks up the garbage. After being blocked by the baffle 25, the garbage falls into the compartment 19. Open the compartment door 24, and then drive the compartment 19 to rotate around the rear hinge point to dump the garbage.

[0034] Although the specific embodiments of the utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the utility model. Based on the technical solution of the utility model, various modifications or variations that can be made by those skilled in the art without creative effort are still within the scope of protection of the utility model.

Claims

1. A dual-fan structure driven by an auxiliary engine, comprising an auxiliary engine (1), a first fan (2), and a second fan (3), characterized in that: It also includes a pulley drive assembly and a tensioning assembly. The output end of the auxiliary engine (1) is connected to the input end of the pulley drive assembly, and the output end of the pulley drive assembly is connected to the first fan (2). The first fan (2) and the second fan (3) are connected by a coupling. The tensioning assembly includes a tensioning wheel (7) and a support for adjusting the position of the tensioning wheel (7). The support includes a mounting frame (8), an adjusting plate (9), and an adjusting frame (10). The adjusting plate (9) is set on the mounting frame (8), and the adjusting frame (10) is movably set on the upper part of the adjusting plate (9) through the first connecting member. The tensioning wheel (7) is rotatably set on the adjusting frame (10), and the tensioning wheel (7) abuts against the drive belt (6) of the pulley drive assembly.

2. The auxiliary engine-driven dual-fan structure according to claim 1, characterized in that: The support also includes a first support plate (11) and a second support plate (12). The second support plate (12) is horizontally arranged at the lower part of the adjusting plate (9), and the first support plate (11) is arranged at the bottom of the adjusting frame (10). The first support plate (11) and the second support plate (12) are connected by a second connector, and the first support plate (11) and the second support plate (12) are parallel.

3. The auxiliary engine-driven dual-fan structure according to claim 2, characterized in that: The second connector includes a second bolt (13), a second nut (14), a third nut (15), and a fourth nut (16). Bolt holes are opened at corresponding positions on the first support plate (11) and the second support plate (12). The second bolt (13) passes through the first support plate (11) and the second support plate (12) in sequence. The top of the second nut (14) abuts against the bottom of the first support plate (11). The bottom of the third nut (15) and the top of the fourth nut (16) abut against the top and bottom of the second support plate (12), respectively.

4. The auxiliary engine-driven dual-fan structure according to claim 1 or 2, characterized in that: The first connecting piece includes a first bolt (17) and a first nut. The adjusting plate (9) has elongated holes (901) symmetrically opened at both ends. The adjusting frame (10) has bolt holes symmetrically opened at both ends that are adapted to the elongated holes (901). The first bolt (17) passes through the bolt hole of the adjusting frame (10) and the elongated hole (901) of the adjusting plate (9) in sequence and is threadedly connected to the first nut.

5. The auxiliary engine-driven dual-fan structure according to claim 1 or 2, characterized in that: The belt drive assembly also includes a drive wheel (4) and a driven wheel (5). The output end of the auxiliary engine (1) is connected to the drive wheel (4). The drive wheel (4) and the driven wheel (5) are fitted with a drive belt (6). The driven wheel (5) is connected to the first fan (2).

6. A high-speed road sweeper, comprising the auxiliary engine-driven dual-fan structure as described in any one of claims 1-5, characterized in that: It also includes a carriage (19) and a chassis (20). The carriage (19) is set on the chassis (20). A negative pressure pipe (21) is set on the top of the carriage (19). The first fan (2), the second fan (3), the auxiliary engine (1), the pulley drive assembly and the tensioning assembly are all set on the chassis (20) and are all located at the front end of the carriage (19). The negative pressure pipe (21) is connected to the air inlet of the first fan (2) and the second fan (3). Two dust suction nozzles (22) are symmetrically set below the chassis (20). The two dust suction nozzles (22) are respectively connected to the first fan (2) and the second fan (3). The two dust suction nozzles (22) are connected to the inner cavity of the carriage (19) through the suction pipe (23). A baffle (25) is also set on the top of the carriage (19). The baffle (25) is located above the outlet of the suction pipe (23).

7. The high-speed road sweeper according to claim 6, characterized in that: It also includes a cleaning mechanism (26), which is located at the bottom of the chassis (20) and in front of the suction nozzle (22).

8. The high-speed road sweeper according to claim 6 or 7, characterized in that: The suction nozzle (22) is connected to the chassis (20) via a lifting mechanism.

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