Movable spraying rod for spreading paver

Abstract

The movable spraying rod comprises a spraying rod body, a rotating support, a driving mechanism and a supporting shaft, the supporting shaft is installed on a vehicle frame, the middle of the rotating support is hinged to the supporting shaft, and the rotating support rotates with the supporting shaft as a fulcrum; one end of the driving mechanism is connected with the frame, the other end of the driving mechanism is hinged to one end of the rotating support, and the other end of the rotating support is hinged to the spraying rod. When the driving mechanism pulls the rotating support downwards, the spraying rod moves upwards, and when the driving mechanism pushes the rotating support upwards, the spraying rod moves downwards. Through the structure of the driving device, the supporting shaft and the rotating support, the position of the spraying rod can move up and down, the position of the spraying rod can be adjusted according to the actual situation, the stability and the uniformity of the spraying amount are improved, and meanwhile the spraying rod is prevented from being touched and extruded in the transportation process.

Description

Technical Field

[0001] The utility model relates to the technical field of road construction machinery, in particular to a mobile spraying rod for a spreading paver. Background Art

[0002] During the construction of the spreading paver, the front spraying rod nozzle adopts a fan-shaped spray method to match the width of the emulsified asphalt spraying surface with the nozzle spacing to ensure the uniformity of the final spreading amount; under this working condition, the spraying rod usually needs to maintain a small distance from the driving surface to ensure the stability and uniformity of the spreading amount. When the paver is transported as a complete machine, it is necessary to drive the vehicle along the rear ladder of the transport vehicle to the transport vehicle. During the driving process, there is a risk of contact and squeezing with the front spraying rod; under this working condition, the spraying rod needs to maintain a large distance from the driving surface. However, the spraying rod of the existing spreading paver is fixedly installed on the frame, and the distance between the spraying rod and the ground cannot be adjusted according to different working conditions. Utility Model Content

[0003] Purpose of the invention: In view of the above shortcomings, the utility model provides a mobile spraying rod for a spreading and paving machine, which can adjust the position of the spraying rod according to different working conditions.

[0004] Technical solution: To solve the above problems, the utility model adopts a mobile spraying rod for a spreading paver, including a spraying rod, a rotating bracket, a driving mechanism, and a support shaft. The support shaft is installed on a frame, and the middle part of the rotating bracket is hinged to the support shaft, so that the rotating bracket rotates with the support shaft as a fulcrum; one end of the driving mechanism is connected to the frame, and the other end of the driving mechanism is hinged to one end of the rotating bracket, and the other end of the rotating bracket is hinged to the spraying rod; when the driving mechanism pulls the rotating bracket downward, the spraying rod moves upward, and when the driving mechanism pushes the rotating bracket upward, the spraying rod moves downward.

[0005] Furthermore, it also includes a lifting slide, which includes a guide rod fixed on the frame and a guide plate with a guide groove, the axis of the guide rod is perpendicular to the plane where the guide plate is located, and the guide rod is located in the guide groove, and the guide plate is connected to the spraying rod; when the spraying rod moves up and down, the guide plate moves up and down with the spraying rod.

[0006] Furthermore, a connecting plate is provided on the spraying rod, one end of the connecting plate is fixedly connected to the spraying rod, and the other end is hinged to the rotating bracket.

[0007] Furthermore, the driving mechanism is a linear drive, and the driving mode of the driving mechanism adopts one of pneumatic drive, hydraulic drive and electromagnetic drive.

[0008] Furthermore, a displacement sensor for identifying displacement is provided at one end of the driving mechanism.

[0009] Furthermore, the support shaft is provided with an angle sensor for identifying the rotation angle.

[0010] Furthermore, the spray rod is connected with a spray pipeline for supplying water, and a plurality of spray ports are arranged at the bottom of the spray rod.

[0011] Furthermore, the spray pipeline is made of flexible material.

[0012] Beneficial effect: Compared with the prior art, the significant advantage of the utility model is that the upward and downward movement of the spraying rod is achieved through the driving device, the supporting shaft and the rotating bracket structure, so that the position of the spraying rod can be adjusted according to actual conditions, thereby improving the stability and uniformity of the spraying amount and preventing the spraying rod from being touched and squeezed during transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of the mobile spraying rod of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the mobile spraying rod of the utility model from a top view;

[0015] Figure 3 This is a schematic diagram of the structure of the lifting slide and spraying rod of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the mobile spraying rod of the utility model in a high position;

[0017] Figure 5 This is a schematic diagram of the structure of the mobile spraying rod of the utility model in the low position state. DETAILED DESCRIPTION

[0018] like Figure 1 and Figure 2 As shown, a mobile spraying rod for a spreading machine in this embodiment includes a spraying rod 1, a rotating bracket 3, a lifting slide 5, a linear drive 6, and a support shaft 7. The support shaft 7 is installed on the frame, and the middle part of the rotating bracket 3 is hinged to the support shaft 7, so that the rotating bracket 3 can rotate with the support shaft 7 as a fulcrum. One end of the rotating bracket 3 is hinged to the linear drive 6, and the other end is hinged to the connecting plate 9, and the connecting plate 9 is fixedly connected to the spraying rod 1. The rotating bracket 3 and the linear drive 6 and the connecting plate 9 are all hinged through pins (2, 4). One end of the linear drive 6 is hinged to the rotating bracket 3, and the other end is fixed to the frame. The driving mode of the linear drive 6 can be pneumatic, hydraulic drive, electromagnetic drive, etc. A displacement sensor for identifying displacement is provided at one end of the linear drive 6, and an angle sensor for identifying the rotation angle is provided on the support shaft 7. The sensor monitors the up and down displacement of the spraying rod in real time.

[0019] like Figure 3As shown, the lifting slide 5 includes a guide rod 51 fixed on the frame and a guide plate 52 provided with a guide groove 53. The axis of the guide rod 51 is perpendicular to the plane where the guide plate 52 is located, and the guide rod 51 is located in the guide groove 53. The guide plate 52 is fixedly connected to the bottom of the spray rod 1. When the spray rod 1 moves up and down, the guide plate 52 moves up and down with the spray rod 1, the position of the guide rod 51 remains fixed, and the guide groove 53 slides up and down along the direction of the guide rod 51. The spray rod 1 is connected to a spray pipeline 11 for water supply. The spray pipeline 11 is made of flexible material, so the up and down movement of the spray rod 1 does not affect the water supply of the pipeline. A plurality of spray ports 12 for spraying water are provided at the bottom of the spray rod 1. A front baffle 8 of the frame is provided in front of the spray rod 1.

[0020] like Figure 4 and Figure 5 As shown, the spraying rod 1 is moved up and down by controlling the extension length of the linear actuator 6. When the linear actuator 6 is retracted and pulls the rotating bracket 3 downward, the spraying rod 1 moves upward; when the linear actuator 6 is extended and pushes the rotating bracket 3 upward, the spraying rod 1 moves downward.

Claims

1. A mobile spraying rod for a spreading paver, characterized in that: The invention comprises a spraying rod (1), a rotating bracket (3), a driving mechanism (6), and a supporting shaft (7); the supporting shaft (7) is mounted on a vehicle frame; the middle part of the rotating bracket (3) is hinged to the supporting shaft (7), so that the rotating bracket (3) rotates with the supporting shaft (7) as a fulcrum; one end of the driving mechanism (6) is connected to the vehicle frame; the other end of the driving mechanism (6) is hinged to one end of the rotating bracket (3); the other end of the rotating bracket (3) is hinged to the spraying rod (1); when the driving mechanism (6) pulls the rotating bracket (3) downward, the spraying rod (1) moves upward; when the driving mechanism (6) pushes the rotating bracket (3) upward, the spraying rod (1) moves downward.

2. The mobile spraying rod for a spreading and paving machine according to claim 1, characterized in that: The vehicle also comprises a lifting slideway (5), wherein the lifting slideway (5) comprises a guide rod (51) fixed on a vehicle frame and a guide plate (52) provided with a guide groove (53), wherein the axis of the guide rod (51) is perpendicular to the plane where the guide plate (52) is located, and the guide rod (51) is located in the guide groove (53), and the guide plate (52) is connected to the spraying rod (1); when the spraying rod (1) moves up and down, the guide plate (52) moves up and down along with the spraying rod (1).

3. The mobile spraying rod for a spreading and paving machine according to claim 2, characterized in that: The spraying rod (1) is provided with a connecting plate (9), one end of the connecting plate (9) is fixedly connected to the spraying rod (1), and the other end is hinged to the rotating bracket (3).

4. The mobile spraying rod for a spreading and paving machine according to claim 1, characterized in that: The driving mechanism (6) is a linear drive, and the driving mode of the driving mechanism (6) is one of pneumatic drive, hydraulic drive and electromagnetic drive.

5. The mobile spraying rod for a spreading and paving machine according to claim 1, characterized in that: A displacement sensor for identifying displacement is provided at one end of the driving mechanism (6).

6. The mobile spraying rod for a spreading and paving machine according to claim 1, characterized in that: The support shaft (7) is provided with an angle sensor for identifying the rotation angle.

7. The mobile spraying rod for a spreading and paving machine according to claim 1, characterized in that: The spraying rod (1) is connected to a spraying pipeline (11) for supplying water, and a plurality of spraying ports (12) are arranged at the bottom of the spraying rod (1).

8. The mobile spraying rod for a spreading and paving machine according to claim 7, characterized in that: The spraying pipeline (11) is made of flexible material.

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