CN211815874U - Main rolling brush device of sweeper - Google Patents

Abstract

A main rolling brush device of a cleaning vehicle, comprising a rolling brush swing hinge shaft (2) hinged with a vehicle frame (1), and a first mounting plate whose first ends are respectively connected with two ends of the rolling brush swing hinge shaft (2) (3) and the second mounting plate (4), a roller brush (5) rotatably connected to the other ends of the first mounting plate (3) and the second mounting plate (4), and a roller brush driven wheel connected to the roller brush (6), the roller brush drive motor (7) connected with the frame, the drive belt (8) connected with the drive wheel of the roller brush drive motor (7) and the roller brush driven wheel (6), and the first mounting plate ( 3) The hinged pinch pulley support arm (9), the pinch pulley (10) connected with the pinch pulley support arm (9), the pull rod (12) hinged with the first mounting plate (3), the base and the vehicle The frame (1) is hinged, the telescopic mechanism (13) is hinged with the pull rod (12), and the rolling brush limit bolt (15) is connected with the frame (1).

Description

The main brush device of the sweeper

technical field

The utility model relates to the technical field of sweepers, in particular to a main roller brush device of a sweeper.

Background technique

With the development of the economy and the increase of labor costs, mechanized operations are generally realized in the cleaning of main roads in cities. In the process of road cleaning, sweepers are usually used to clean the road surface. The sweeper uses the principle of sweeping mechanical cleaning and straw pneumatic suction to collect road garbage into the garbage bin to achieve the purpose of road cleaning.

The roller-type sweeper is equipped with a roller-type sweeping brush at the bottom of the vehicle, just like the broom we use every day. When the vehicle moves forward, the aforementioned rolling brush will directly roll the garbage and sand on the ground to the waste collection box on the vehicle. In addition to the aforementioned roller sweeping brushes, this type of sweeper is equipped with one or two small rotating sweeping brushes (commonly known as side sweeping brushes), so that when working, the garbage and sand on the corner or roadside can be brought to the road through rotation. During the working stroke of the roller brush.

As an important component of the sweeper, the roller brush mainly cleans the road surface by rolling and rotating. At present, most of the roller brushes of the sweeper are installed on the vehicle chassis of the sweeper through a lifting mechanism, and the lifting mechanism can realize the lowering or lifting of the roller brush. When the sweeper needs to carry out cleaning operations, the roller brush can be lowered through the lifting device and contacted with the road surface to be cleaned; when the cleaning is completed, the passing performance of the sweeper can be enhanced by lifting the roller brush device through the lifting device. For example, the Chinese invention patent of CN101255680A discloses a cleaning vehicle. The cleaning vehicle includes a roller brush installed on the vehicle chassis. The roller brush is connected to a hanger, and the hanger is fixed on the vehicle chassis in a hinged manner. The middle of the hanger The position is also connected with a hydraulic cylinder. When cleaning, the roller brush can be moved to the working position by extending the hydraulic cylinder. When the cleaning is completed, the roller brush can be retracted by retracting the hydraulic cylinder.

The sweeper in the above-mentioned patent documents improves the obstacle avoidance ability of the sweeper in a non-working state, but during the cleaning operation of the sweeper, the roller brush is directly connected to the hanger, which results in a limited space for the roller brush. , When the road surface is uneven, the roller brush cannot avoid the obstacles on the road well, so that a rigid collision occurs between the roller brush and the obstacle. This collision will cause damage to the roller brush and reduce the service life of the roller brush. The working position of the roller brush is not easy to adjust. After the roller brush is worn, it needs to be replaced in time. Otherwise, the cleaning effect will be affected. The roller brush has a short service life, frequent replacement and heavy workload.

Utility model content

The technical problem to be solved by the utility model is to provide a main roller brush device of a cleaning vehicle which can solve the above-mentioned technical defects, and can easily adjust the working position of the main roller brush.

In order to solve the above-mentioned technical problems, the utility model provides a main rolling brush device of a cleaning vehicle, which includes a rolling brush swing hinge hinged with the vehicle frame, located on two sides of the vehicle frame, and the first end is respectively connected with the rolling brush swing hinge shaft. A first mounting plate and a second mounting plate connected at both ends, a roller brush whose two ends are rotatably connected to the other ends of the first mounting plate and the second mounting plate respectively, and a roller brush that is connected to the end of the roller brush near the first mounting plate A roller brush driven wheel, a roller brush drive motor connected to the side of the frame near the first mounting plate, a transmission belt drivingly connected with the drive wheel of the roller brush drive motor and the roller brush driven wheel, the first end of which is connected to the first mounting plate A hinged pinch pulley support arm, a pinch pulley that is pressed above the transmission belt and rotatably connected to the other end of the pinch pulley support arm, a pull rod whose first end is hinged with the first mounting plate, and the machine base is hinged with the frame and a telescopic mechanism hinged between the telescopic rod and the other end of the pull rod, and a rolling brush limit bolt connected to the frame under the second mounting plate.

As a further improvement of the above basic solution, the main rolling brush device of the sweeper provided by the present invention also has a torsion spring connected with the first mounting plate and used to provide pressure for the pinch pulley.

As a further improvement of the above improvement scheme, in the main rolling brush device of the sweeper provided by the present invention, the pull rod has an axial waist-shaped hole, and the pull rod passes through the first hinge shaft passing through the axial waist-shaped hole and the second A mounting plate is connected to the telescopic mechanism through a second hinge shaft passing through the axial waist-shaped hole, and both the first hinge shaft and the second hinge shaft can slide in the axial waist-shaped hole. The telescopic mechanism can be an electric push rod, a hydraulic cylinder, etc.

As a further improvement of the above basic solution, the main rolling brush device of the sweeper provided by the present invention also has a rolling brush limit bolt mounting plate connected with the frame, the rolling brush limit bolt and the rolling brush limit bolt Mounting plate screw connection.

As a further improvement of the above-mentioned basic solution, the main rolling brush device of the sweeper provided by the present invention also has tension springs whose ends are respectively connected with the vehicle frame and the first mounting plate.

In the case of no conflict, the above improved technical solutions can be implemented individually or in combination.

The beneficial effects of the utility model are: the roller brush swing hinge shaft, the first mounting plate, the second mounting plate and the roller brush form a parallelogram structure, the roller brush can rotate around the roller brush swing hinge shaft, and the expansion and contraction of the telescopic mechanism can drive the roller brush When the roller brush is lowered or lifted, the distance between the driven wheel of the roller brush and the driving wheel of the motor changes, and the pinch pulley can tension the transmission belt. During operation, the rolling brush limit bolt presses against the bottom surface of the second mounting plate to limit the descending range of the rolling brush. When the roller brush is worn and the ground clearance of the roller brush becomes larger, which affects the cleaning effect, the limit bolt of the roller brush can be adjusted, the elongation of the telescopic mechanism can be adjusted, the roller brush can be lowered, and the ground clearance of the roller brush can be reduced to achieve The normal cleaning effect can be adjusted two to three times, thereby extending the service life of the roller brush. A hinged pull rod is arranged between the first mounting plate and the telescopic mechanism. When the rolling brush encounters an obstacle, it can be automatically lifted to avoid damage to the rolling brush.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the present application, but do not constitute an improper limitation of the present invention. In the attached image:

Fig. 1 is the structural principle schematic diagram of the main roller brush device of the cleaning vehicle of the embodiment;

Fig. 2 is the schematic diagram of the structure principle of the right side view of the main roller brush device of the cleaning vehicle of the embodiment;

3 is a schematic diagram of the left side view of the structure principle of the main roller brush device of the cleaning vehicle according to the embodiment;

4 is a schematic top view structural principle diagram of the main rolling brush device of the cleaning vehicle of the embodiment;

FIG. 5 is a schematic diagram of the structure principle of the A-A direction of FIG. 3 .

Detailed ways

The embodiments of the present utility model will be further described in detail below with reference to the accompanying drawings.

As shown in Figures 1 to 5, the main rolling brush device of the sweeper includes a rolling brush swinging hinge shaft 2 hinged with the frame 1, located on two sides of the frame 1, and the first end is respectively connected with the rolling brush swinging hinge shaft 2 The first mounting plate 3 and the second mounting plate 4 connected at the two ends of the two ends of the roller brush 5 are rotatably connected with the other end of the first mounting plate 3 and the second mounting plate 4 respectively. The roller brush driven wheel 6 connected to the end of the mounting plate 3, the roller brush drive motor 7 connected to the side of the frame 1 near the first mounting plate 3, and the driving wheel of the roller brush drive motor 7 and the roller brush driven wheel 6 are drivingly connected. The transmission belt 8, the pinch pulley support arm 9 whose first end is hinged with the first mounting plate 3, the pinch pulley 10 which is pressed above the transmission belt 8 and is rotatably connected with the other end of the pinch pulley support arm 9, the first The pull rod 12 whose end is hinged with the first mounting plate 3, the telescopic mechanism 13 whose base is hinged with the frame 1 and the telescopic rod is hinged with the other end of the pull rod 12, is located under the second mounting plate 4 and is connected with the frame 1. Brush limit bolt 15.

Working principle: The roller brush swing hinge 2, the first mounting plate 3, the second mounting plate 4 and the roller brush 5 form a parallelogram structure, the roller brush 5 can rotate around the roller brush swing hinge 2, and the expansion and contraction of the telescopic mechanism 13 can drive the When the roller brush 5 is lowered or lifted, when the roller brush 5 is lowered or lifted, the distance between the roller brush driven wheel 6 and the driving wheel of the motor 7 will change, and the pinch pulley 10 can use gravity to tension the transmission belt 8 . During operation, the rolling brush limit bolt 15 is pressed against the bottom surface of the second mounting plate 4, so that the rolling brush 5 cannot descend any further, and the descending range of the rolling brush is limited. When the roller brush 5 is worn out, the ground clearance of the roller brush 5 becomes larger and the cleaning effect is affected, the roller brush limit bolt 15 can be adjusted, and the elongation of the telescopic mechanism 13 can be adjusted at the same time. The ground clearance of the brush 5 can achieve normal cleaning effect, and can be adjusted two to three times, thereby extending the service life of the roller brush 5. A hinged pull rod 12 is provided between the first mounting plate 3 and the telescopic mechanism 13 , when the rolling brush 5 encounters an obstacle, it can be automatically lifted to avoid damage to the rolling brush 5 .

Optionally, on the basis of the above basic technical solutions, the main rolling brush device of the sweeper provided by the present invention also has a torsion spring 11 connected to the first mounting plate 3 for providing pressure to the pinch roller 10 . The torsion spring 11 provides torsion force, which can supplement the lack of the weight of the pinch pulley, or reduce the weight of the pinch pulley 10 , so that the pinch pulley 10 can provide greater pressure and the transmission belt 8 has greater tension.

Optionally, on the basis of the above-mentioned basic technical solutions, in the main rolling brush device of the sweeper provided by the present invention, the pull rod 12 has an axial waist-shaped hole, and the pull rod 12 passes through the axial waist-shaped hole. The first hinge shaft is connected to the first mounting plate 3, and is connected to the telescopic mechanism 13 through the second hinge shaft passing through the axial waist-shaped hole. Both the first hinge shaft and the second hinge shaft can be in the axial direction. Slide in the waist hole. During operation, the telescopic mechanism 13 is extended, and the rolling brush limit bolt 15 touches the second mounting plate 4. When the rolling brush 5 encounters garbage particles or obstacles, the axial waist-shaped hole makes the rolling brush 5 automatically lift upward. Provide a buffering effect to avoid damage to the telescopic mechanism 13 and the roller brush 5 .

Optionally, on the basis of the above-mentioned basic technical solutions, the main rolling brush device of the sweeper provided by the present invention also has a rolling brush limit bolt mounting plate 16 connected with the frame 1, and the rolling brush limit bolt 15 is connected with the rolling brush limit bolt 15. The roller brush limit bolt mounting plate 16 is screwed.

Optionally, on the basis of the above-mentioned basic technical solutions, the main rolling brush device of the sweeper provided by the present invention further has tension springs 14 whose ends are respectively connected to the vehicle frame 1 and the first mounting plate 3 . The tension spring 14 provides a tension force for the roller brush 5 to prevent the roller brush 5 from jumping frequently and greatly when it encounters garbage particles. When lowering the brush 5, land more quickly.

Obviously, the present utility model is not limited to the above preferred embodiments, and can also be transformed and improved in various forms within the spirit defined in the claims and description of the present utility model, which can solve the same technical problem and achieve the expected technical effect, Therefore it will not be repeated. All solutions that those of ordinary skill in the art can directly or associate with the disclosed content of the present invention also belong to the protection scope of the present invention as long as they are within the spirit defined by the claims.

Claims (5)

1. The main rolling brush device of the sweeper is characterized by comprising a rolling brush swinging hinge shaft (2) hinged with a frame (1), a first mounting plate (3) and a second mounting plate (4) which are positioned at two sides and the first end of the frame (1) and are respectively connected with two ends of the rolling brush swinging hinge shaft (2), a rolling brush (5) with two ends respectively rotatably connected with the other ends of the first mounting plate (3) and the second mounting plate (4), a rolling brush driven wheel (6) connected with the end, close to the first mounting plate (3), of the rolling brush (5), a rolling brush driving motor (7) connected with one side, close to the first mounting plate (3), of the frame (1), a driving belt (8) in transmission connection with a driving wheel of the rolling brush driving motor (7) and the rolling brush driven wheel (6), and a pinch roller supporting arm (9) with a first end hinged with the first mounting plate (3), a pinch roller supporting arm (9) pressed above the driving belt (8), And the other end of the pinch roller supporting arm (9) is rotatably connected with the pinch roller (10), a pull rod (12) with a first end hinged with the first mounting plate (3), a telescopic mechanism (13) with a base hinged with the frame (1), a telescopic rod hinged with the other end of the pull rod (12), and a rolling brush limiting bolt (15) which is positioned below the second mounting plate (4) and connected with the frame (1).

2. The main roller brush device of sweeper truck according to claim 1, characterized in that it further has a torsion spring (11) connected to the first mounting plate (3) for providing pressure to the pinch roller (10).

3. The main roller brush device of a sweeper truck according to claim 1, characterized in that the pull rod (12) has an axial waist-shaped hole, the pull rod (12) being connected to the first mounting plate (3) by a first hinge shaft passing through the axial waist-shaped hole and to the telescoping mechanism (13) by a second hinge shaft passing through the axial waist-shaped hole, both the first hinge shaft and the second hinge shaft being slidable in the axial waist-shaped hole.

4. The main roll brush device of the sweeper truck according to claim 1, characterized in that a roll brush limit bolt mounting plate (16) connected with the frame (1) is further provided, and the roll brush limit bolt (15) is in threaded connection with the roll brush limit bolt mounting plate (16).

5. The main roll brush device of sweeper truck according to claim 1, characterized in that it further has a tension spring (14) with two ends connected to the frame (1) and the first mounting plate (3), respectively.

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