Aerial ladder truck hopper

Abstract

A hopper of an aerial ladder truck comprises a hopper body, the hopper body is in sliding connection with a track of the aerial ladder truck through rollers arranged on the bottom face of the hopper body, an anti-collision block is further arranged on the bottom face of the hopper body, the anti-collision block and the rollers are sequentially arranged in the advancing direction of the hopper body, and the anti-collision block is located on the rear side of the advancing direction of the rollers. The anti-collision block is of a triangular structure and is provided with an inclined face, the inclined face is close to the track and is an arc-shaped bottom face, the axis of the arc-shaped bottom face is parallel to the axis of the rolling wheel, and the lowest point of the arc-shaped bottom face is located above the connecting position of the rolling wheel and the track. The hopper body and the idler wheels can gradually move upwards by a certain height under the guiding effect of the arc-shaped bottom face, so that the arc-shaped bottom face can directly make contact with the outer circle faces of the idler wheels after making contact with the foremost end of the track, the distance between the arc-shaped bottom face and the track can be shortened, the idler wheels can be straightened to the track without colliding, and the production efficiency is improved. And the phenomenon that the roller or the connecting part of the roller and the hopper body directly collides with the foremost end of the track is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of aerial ladder vehicles, in particular to a hopper of an aerial ladder vehicle. Background Art

[0002] The hopper of the ladder truck is an important device on the ladder truck, mainly used for handling and unloading various materials, such as construction materials, goods, etc. The hopper is installed on the retractable ladder of the ladder truck through a mounting frame, and can drive the materials to move up and down and flip on the ladder.

[0003] The bottom surface of the hopper in the prior art is provided with rollers, and the rollers can roll on the track of the ladder. When unloading, the rollers and the front end part of the hopper need to pass over the front end of the ladder to facilitate the hopper to flip over a certain angle to pour out the materials. Then, the hopper is controlled to return. When the hopper returns, the rollers return to the track from a suspended state through the front end of the ladder. The rollers and the front end of the ladder will collide. If the rollers collide with the ladder for a long time, the rollers and the part connecting the rollers to the hopper will break, affecting the movement of the hopper on the ladder, and further affecting the rapid loading and unloading of the ladder truck. Utility Model Content

[0004] In order to solve the technical problems existing in the above-mentioned background technology, the utility model provides a hopper for a ladder truck.

[0005] The technical solution of this utility model is as follows:

[0006] A ladder truck hopper includes a hopper body, which is slidably connected to a track of the ladder truck through rollers arranged on the bottom surface of the hopper body, and an anti-collision block is also arranged on the bottom surface of the hopper body. The anti-collision block and the roller are arranged in sequence along the forward direction of the hopper body, and the anti-collision block is located at the rear side of the forward direction of the roller;

[0007] The anti-collision block is a triangular structure, and its thickness increases toward the side close to the roller. The anti-collision block has an inclined surface, and the inclined surface is the side close to the track. The inclined surface is set as an arc-shaped bottom surface, and the axis of the arc-shaped bottom surface is set parallel to the axis of the roller. The height of the lowest point of the arc-shaped bottom surface close to the roller is higher than the junction of the roller and the track, and the arc-shaped bottom surface does not interfere with the sliding of the roller on the track.

[0008] The anti-collision block is arranged on the rear side of the roller, so that after the hopper body is unloaded, the arc-shaped bottom surface of the anti-collision block first contacts the front end of the track, and the hopper body and the roller can be gradually moved up to a certain height under the guidance of the arc-shaped bottom surface, so that after the arc-shaped bottom surface contacts the front end of the track, it can directly contact the outer cylindrical surface of the roller. After the roller leaves the track, the distance when contacting the track can be shortened, and the roller can be straightened on the track without collision, thereby reducing the phenomenon that the roller or the part connected to the hopper body directly collides with the front end of the track.

[0009] In order to reduce the wear between the arc bottom surface and the front end of the track, a plurality of rotating wheels are rotatably arranged on the arc bottom surface, and the axis of the rotating wheel is parallel to the axis of the roller.

[0010] In order to prevent the rotating wheel from being damaged or falling off during long-term use, a plurality of wheel grooves are arranged at intervals along the circumferential direction on the arc-shaped bottom surface, and the rotating wheel is rotatably arranged in the wheel grooves. If the rotating wheel falls off, most of the area of ​​the arc-shaped bottom surface will still remain in contact with the track.

[0011] The above-mentioned arc bottom surface is set in a position where the circle where the arc bottom surface is located is circumscribed with the circle where the roller is located, so that after the arc bottom surface slides into the front end of the track, it is convenient for the roller to directly contact the upper surface of the track, thereby reducing the phenomenon of direct collision between the roller or its bracket and the track.

[0012] Regarding the installation position of the anti-collision block and the roller, the distance between the anti-collision block and the roller is set to 0.1-1cm, within the range, so that the roller can directly contact the upper surface of the track.

[0013] In order to enhance the strength of the roller and prevent the roller from being damaged during long-term use, the roller is rotatably connected to the bottom surface of the hopper body through a bracket, and a reinforcing rib plate is provided on the side of the bracket away from the anti-collision block.

[0014] Regarding the slotting positions of multiple wheel grooves, the spacing between adjacent wheel grooves is set to 0.1-1 cm. Within the spacing range, a certain area of ​​the arc bottom surface is guaranteed to be retained between adjacent wheel grooves to prevent the arc bottom surface from sliding with the track in a certain area when the rotating wheel is damaged and falls off; it can also make the track directly contact with multiple rotating wheels continuously, reducing the wear between the arc bottom surface and the track.

[0015] The beneficial effects of the present invention are:

[0016] The roller is arranged at the front end of the bottom surface of the hopper body, and the front end of the hopper body is the front end position when it moves upward, and the anti-collision block is located behind the roller. When unloading, the roller and part of the front end of the hopper body will leave the track, so that the hopper body can be turned over after reaching the specified position to pour out the material, and when the hopper body returns, the arc-shaped bottom surface of the anti-collision block will contact the front end of the track first, and the anti-collision block slides with the front end of the track. Under the guidance of the arc-shaped bottom surface, the hopper body and the roller can gradually move up to a certain height, shortening the contact distance between the roller and the front end of the track, so that after the arc-shaped bottom surface slides over the front end of the track, the outer cylindrical surface of the roller can directly contact the upper surface of the track, reducing the collision force between the roller and / or the roller bracket and the front end of the track, reducing the damage or breakage of the roller and the part connected to the hopper body, and extending its service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In the attached picture:

[0018] Figure 1 It is a structural schematic diagram;

[0019] Figure 2 It is a schematic diagram of the bottom structure of the hopper body;

[0020] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0021] The components represented by the reference numerals in the figure are:

[0022] 1. Hopper body; 2. Anti-collision block; 21. Arc bottom surface; 22. Wheel groove; 3. Roller; 4. Rotating wheel; 5. Reinforcement rib plate; 6. Bracket; 7. Track; 8. Mounting frame. DETAILED DESCRIPTION

[0023] See also Figure 1 As shown, a hopper for a ladder truck comprises a hopper body 1, which is mounted on a track 7 via a mounting frame 8. The mounting frame 8 can drive the hopper body 1 to move on the track 7, and the mounting frame 8 is provided with a hydraulic cylinder that can flip the hopper body 1. The mounting frame 8 is a prior art, and the front end of the hopper body 1 is slidably connected to the track 7 of the ladder truck via a roller 3 arranged on its bottom surface. An anti-collision block 2 is also provided on the bottom surface of the hopper body 1. The anti-collision block 2 and the roller 3 are arranged in sequence along the forward direction of the hopper body 1, and the anti-collision block 2 is located on the rear side of the forward direction of the roller 3. The roller 3 is rotatably connected to the bottom surface of the hopper body 1 via a bracket 6, and a reinforcing rib plate 5 is provided on the side of the bracket 6 away from the anti-collision block 2.

[0024] See also Figure 2 and Figure 3 As shown, the anti-collision block 2 is a triangular structure, and its thickness increases toward the side close to the roller 3. The anti-collision block 2 has an inclined surface, and the thickness of the anti-collision block 2 increases toward the direction close to the roller 3, so that the anti-collision block 2 forms a triangular block. The inclined surface of the triangular block is an inclined surface away from the bottom surface of the hopper body 1 and close to the upper surface of the track 7. The bottom surface of the anti-collision block 2 is provided with an arc bottom surface 21 that can contact the track 7. After the roller 3 leaves the track 7, the arc bottom surface 21 will contact the track 7 when the hopper body 1 returns. The axis of the arc bottom surface 21 is set parallel to the axis of the roller 3, and the height of the end of the arc bottom surface 21 close to the roller 3 is higher than the junction of the roller 3 and the track 7. Regarding the installation position of the anti-collision block 2 and the roller 3, the spacing between the anti-collision block 2 and the roller 3 is set to be within a range of 0.1-1㎝, so that the roller 3 can directly contact the upper surface of the track 7.

[0025] The above-mentioned arc bottom surface 21 is set in a position where the circle where the arc bottom surface 21 is located is circumscribed with the circle where the roller 3 is located, so that after the arc bottom surface 21 slides into contact with the front end of the track 7, it is convenient for the roller 3 to directly contact the upper surface of the track 7, thereby reducing the phenomenon of direct collision between the roller 3 or its bracket 6 and the track 7.

[0026] The anti-collision block 2 is arranged on the rear side of the roller 3, so that after the hopper body 1 is unloaded, the arc-shaped bottom surface 21 of the anti-collision block 2 first contacts the front end of the track 7, and the hopper body 1 and the roller 3 can be gradually moved up to a certain height under the guidance of the arc-shaped bottom surface 21, so that after the arc-shaped bottom surface 21 contacts the front end of the track 7, it can directly contact the outer cylindrical surface of the roller 3, and after the roller 3 leaves the track 7, the distance between the roller 3 and the track 7 can be shortened, thereby reducing the phenomenon that the roller 3 or the part connected to the hopper body 1 directly collides with the front end of the track 7.

[0027] In order to reduce the wear between the arc bottom surface 21 and the front end of the track 7, a plurality of rotating wheels 4 are rotatably arranged on the arc bottom surface 21, and the axis of the rotating wheel 4 is parallel to the axis of the roller 3. In order to prevent the rotating wheel 4 from being damaged or falling off after long-term use, a plurality of wheel grooves 22 are arranged at intervals along the circumferential direction on the arc bottom surface 21, and the rotating wheel 4 is rotatably arranged in the wheel groove 22. If the rotating wheel 4 falls off, the arc bottom surface 21 will still retain a large area in contact with the track 7. Regarding the slotting positions of the plurality of wheel grooves 22, the spacing between adjacent wheel grooves 22 is set to 0.1-1 cm. Within the spacing range, a certain area of ​​the arc bottom surface 21 is ensured to be retained between adjacent wheel grooves 22, so as to prevent the arc bottom surface 21 from still having a certain area in sliding contact with the track 7 when the rotating wheel 4 is damaged and falls off; it can also make the track 7 directly and continuously contact with the plurality of rotating wheels 4, reducing the phenomenon of wear between the arc bottom surface 21.

Claims

1. A ladder truck hopper, comprising a hopper body (1), which is slidably connected to a track (7) of the ladder truck through rollers (3) arranged on the bottom surface thereof, and is characterized in that: The bottom surface of the hopper body (1) is also provided with an anti-collision block (2), the anti-collision block (2) and the roller (3) are arranged in sequence along the forward direction of the hopper body (1), and the anti-collision block (2) is located at the rear side of the forward direction of the roller (3); The anti-collision block (2) is a triangular structure, and its thickness increases toward the side close to the roller (3). The anti-collision block (2) has an inclined surface, and the inclined surface is a side close to the track (7). The inclined surface is set as an arc bottom surface (21). The axis of the arc bottom surface (21) is arranged parallel to the axis of the roller (3), and the height of the arc bottom surface (21) close to one end of the roller (3) is higher than the connection between the roller (3) and the track (7).

2. The ladder truck hopper according to claim 1, characterized in that: A plurality of rotating wheels (4) are rotatably arranged on the arc-shaped bottom surface (21), and the axes of the rotating wheels (4) are parallel to the axes of the rollers (3).

3. The ladder truck hopper according to claim 2, characterized in that: The arc-shaped bottom surface (21) is provided with a plurality of wheel grooves (22) at intervals along the circumferential direction, and the rotating wheel (4) is rotatably arranged in the wheel grooves (22).

4. The ladder truck hopper according to claim 1, characterized in that: The circle where the arc-shaped bottom surface (21) is located is circumscribed to the circle where the roller (3) is located.

5. The ladder truck hopper according to claim 1, characterized in that: The distance between the anti-collision block (2) and the roller (3) is 0.1-1 cm.

6. The ladder truck hopper according to claim 1, characterized in that: The roller (3) is rotatably connected to the bottom surface of the hopper body (1) via a bracket (6), and a reinforcing rib plate (5) is provided on a side of the bracket (6) away from the anti-collision block (2).

7. The ladder truck hopper according to claim 3, characterized in that: The spacing between adjacent wheel grooves (22) is 0.1-1 cm.

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