A loading and unloading mechanism for a self-unloading vehicle

Abstract

The utility model provides a kind of loading and unloading mechanism for self-unloading vehicle, it is related to mechanical equipment technical field, the device includes base, the hinge of box with base, driving part, auxiliary self-unloading component, the side of box is equipped with unloading port and is hinged with the box door of controlling unloading port opening and closing, the movable part of driving part is hinged with box, the fixed part of driving part is hinged with base, driving part works to drive box overturn relative to base, auxiliary self-unloading component includes limiting piece, swing arm, pull rod, connecting arm, swing arm, pull rod, connecting arm are hinged in proper order, connecting arm is installed on box door, swing arm is hinged with box, limiting piece is installed on base. The device can effectively realize the automatic opening and closing of box door.

Description

Technical Field

[0001] This utility model relates to the field of mechanical equipment technology, and in particular to a loading and unloading mechanism for dump trucks. Background Technology

[0002] In modern logistics, construction, mining and other industries, dump trucks play a vital role as a means of transporting and unloading goods. The traditional dump truck loading and unloading mechanism relies excessively on manual operation in the locking and engagement of the door and the body. Traditional dump truck loading and unloading mechanisms usually rely on manual unlocking of the door and body before unloading, and also require manual pushing of the door to close the door and the body and locking them together.

[0003] The applicant has found that existing institutions have at least the following technical problems: requiring manual intervention, cumbersome operation, and high risk. Utility Model Content

[0004] The purpose of this utility model is to provide a loading and unloading mechanism for dump trucks to solve the technical problem that requires manual intervention in the prior art.

[0005] To solve the above problems, the loading and unloading mechanism for dump trucks involved in this utility model adopts the following technical solution: This utility model provides a loading and unloading mechanism for a dump truck, including a base, a housing hinged to the base, and a drive component. One side of the housing has a discharge port and a hinged door for controlling the opening and closing of the discharge port. The movable part of the drive component is hinged to the housing, and the fixed part of the drive component is hinged to the base. The drive component operates to cause the housing to rotate relative to the base. It also includes an auxiliary self-unloading assembly, which includes a limiting component, a swing arm, a pull rod, and a connecting arm. The swing arm, pull rod, and connecting arm are hinged sequentially, and the connecting arm is mounted on the housing. On the door, the swing arm is hinged to the box body, and the limiting component is installed on the base. During the rotation of the box body towards the base, the swing arm can abut against the limiting component and be pushed by the limiting component to flip towards the pull rod side, so that the swing arm pushes the box door towards the box body via the connecting arm and finally closes the box door. During the rotation of the box body away from the base, the swing arm moves upward with the box body and separates from the limiting component. The box door flips away from the box body due to its own weight, and the swing arm flips away from the box body due to the pressure of the box door via the connecting arm.

[0006] Preferably, the rotation center of the swing arm is located on the side of the limiting member facing the hinge between the door and the box body.

[0007] Preferably, the connecting arm extends downward along the height direction of the door to the outside of the door.

[0008] Preferably, the hinge point between the door and the body is located below the center of gravity of the door.

[0009] Preferably, two sets of auxiliary self-unloading components are provided, and the two sets of auxiliary self-unloading components are symmetrically arranged on both sides of the box body. Preferably, it also includes baffles disposed on both sides of the door, the side walls of the box body located on both sides of the door are parallel to any baffle, and the baffles are locked to the box body.

[0010] Preferably, the baffle is provided with a stop block and the box body is provided with a positioning element. As the baffle slides along the box body with the box door, the stop block and the positioning element can be abutted to limit the maximum angle between the box body and the box door.

[0011] The beneficial effects of this utility model are as follows: This utility model provides a loading and unloading mechanism for a dump truck, including a base, a housing hinged to the base, and a drive component. A discharge port is provided on one side of the housing, and a door for controlling the opening and closing of the discharge port is hinged to it. The movable part of the drive component is hinged to the housing, and the fixed part of the drive component is hinged to the base. The drive component operates to cause the housing to rotate relative to the base. The difference from existing technologies lies in the inclusion of an auxiliary self-unloading component, which includes a limiting component, a swing arm, a pull rod, and a connecting arm. The swing arm, pull rod, and connecting arm are sequentially hinged. The connecting arm is mounted on the door, the swing arm is hinged to the housing, and the limiting component is mounted on the door. On the base, as the box rotates towards the base, the swing arm can abut against the limiting component and be pushed by the limiting component to flip towards the pull rod side, so that the swing arm pushes the box door towards the box via the connecting arm and finally closes the box door. As the box rotates away from the base, the swing arm moves upward with the box and separates from the limiting component. The box door flips away from the box due to its own weight, and the swing arm flips away from the box via the connecting arm due to the pressure of the box door. This device can automatically open and close the box door according to the flipping of the box without manual intervention, reducing the risk of manual intervention and improving work efficiency. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below: Figure 1 This is a diagram showing the unloading state of a loading and unloading mechanism for a dump truck. Figure 2 This is a schematic diagram of the overall structure of a dump truck in its unloading state. Figure 3 for Figure 1 A magnified view of a portion of the image; Figure 4 This is a schematic diagram of the overall structure of a dump truck under normal operating conditions. Figure 5 for Figure 4 A magnified view of a portion of the image.

[0013] In the diagram: 1. Base; 2. Box body; 3. Drive component; 4. Limiting component; 5. Swing arm; 6. Pull rod; 7. Connecting arm; 8. Positioning component; 9. Box door; 10. Baffle. Detailed Implementation

[0014] To make the technical objectives, technical solutions, and beneficial effects of this utility model clearer, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0015] This utility model provides a loading and unloading mechanism for a dump truck, as shown in the figure. It includes a base 1, a housing 2 hinged to the base 1, a drive component 3, and an auxiliary unloading assembly. The base 1 is mounted on the lifting mechanism of the dump truck, moving up and down with the lifting mechanism while maintaining a constant horizontal angle. The drive component 3 is located at the bottom of the housing 2 and can be an electric push rod, hydraulic rod, or cylinder, etc. In this embodiment, a hydraulic rod is used as the drive component 3. The movable part of the hydraulic cylinder is hinged to the housing 2, and the fixed part is hinged to the base 1. The drive component 3 retracts to cause the housing 2 to flip (rotate) relative to the base 1. The side (the side facing downwards during the flipping process relative to the base 1) of the box body 2 is provided with a discharge port and a door for controlling the opening and closing of the discharge port is hinged to this side. The auxiliary self-unloading component includes a limiting member 4, a swing arm 5, a pull rod 6, and a connecting arm 7. The swing arm 5, the pull rod 6, and the connecting arm 7 are hinged in sequence. The swing arm 5 is hinged to the box body 2. The connecting arm 7 is installed on the door. The door rotates to push and pull the swing arm 5 relative to the box body 2 in sequence through the connecting arm 7 and the pull rod 6. The limiting member 4 is installed on the base 1. The hinge point of the swing arm 5 is located on the side of the limiting member 4 facing the hinge point between the door and the box body 2. The hinge point between the door and the box body 2 is located below the center of gravity of the door.

[0016] Normal operating conditions (box 2 is located on base 1): The door is closed on the box body 2, the swing arm 5 abuts against the limiting member 4, and the abutting surface of the swing arm 5 (defined as the side of the swing arm 5 that abuts against the limiting member 4) is located on the side of the limiting member 4 near the door. The relative position of the swing arm 5 on the box body 2 and the limiting member 4 is fixed. When the door has a tendency to rotate away from the box body 2 and push the swing arm 5 to rotate in the direction of the limiting member 4, the limiting member 4 restricts the rotation of the swing arm 5.

[0017] First operating condition (during which the drive component 3 gradually extends to rotate the housing 2 away from the base 1): The swing arm 5 moves upward with the box body 2 and separates from the limiting member 4. The box door tilts away from the base 1 along with the box body 2. The box door flips away from the box body 2 due to its own weight. The swing arm 5 is squeezed by the box door through the connecting arm 7 and flips away from the box body 2. The surface of the swing arm 5 that is in contact with the limiting member 4 rotates to the side of the limiting member 4 away from the box door.

[0018] Second operating condition (during which the drive component 3 gradually retracts to rotate the housing 2 toward the base 1): As the swing arm 5 moves downward (towards the base 1) along with the box body 2, the swing arm 5 abuts against the limiting member 4. Since the hinge point of the swing arm 5 is located on the side of the limiting member 4 facing the hinge between the box door and the box body 2, the swing arm 5 continues to move downward along with the box body 2 and is squeezed upward by the limiting member 4 and rotates (flips) towards the box door. This causes the swing arm 5 to push the connecting arm 7 and the box door towards the box body 2 via the pull rod 6 and finally fits against the box body 2 to close the box door.

[0019] Furthermore, the connecting arm 7 extends downward along the height direction of the door to the outside of the door, and the hinge point between the connecting arm 7 and the pull rod 6 is located on the outside of the door. The two ends of the pull rod 6 are respectively hinged to the connecting arm 7 and the swing arm 5.

[0020] Furthermore, two sets of auxiliary self-unloading components are provided, and the two sets of auxiliary self-unloading components are symmetrically arranged on both sides of the box body 2. The sides of the box door are provided with baffles that are perpendicular to it and located on the outside of the box body 2. The side walls of the box body 2 located on both sides of the box door are parallel to the baffles.

[0021] Furthermore, the baffle 10 is locked to the box 2 to limit the maximum opening angle of the box door relative to the box 2. Specifically, the baffle 10 is provided with a stop block, and the box 2 is provided with a positioning member 8. The positioning member 8 is located on the moving path of the stop block following the movement of the baffle 10, so that the stop block can abut against the positioning member 8 when the baffle 10 slides along the box 2 with the box door.

[0022] Finally, it should be noted that the above embodiments are only for illustration and not for limiting the technical solutions of this utility model. Any equivalent substitutions and modifications or partial substitutions that do not depart from the spirit and scope of this utility model should be covered within the scope of protection of the claims of this utility model.

Claims

1. A loading and unloading mechanism for a dump truck, comprising a base, a housing hinged to the base, and a drive component, wherein a discharge port is provided on one side of the housing and a door for controlling the opening and closing of the discharge port is hinged thereto, the movable part of the drive component is hinged to the housing, and the fixed part of the drive component is hinged to the base, the drive component operates to cause the housing to rotate relative to the base, characterized in that, It also includes an auxiliary self-unloading component, which includes a limiting member, a swing arm, a pull rod, and a connecting arm. The swing arm, pull rod, and connecting arm are hinged in sequence. The connecting arm is installed on the door, and the swing arm is hinged to the body. The limiting member is installed on the base. During the rotation of the body towards the base, the swing arm can abut against the limiting member and be pushed by the limiting member to flip towards the pull rod side, so that the swing arm pushes the door towards the body via the connecting arm to flip and finally close the door. During the rotation of the body away from the base, the swing arm moves upward with the body and separates from the limiting member. The door flips away from the body due to its own weight, and the swing arm flips away from the body due to the pressure of the door via the connecting arm.

2. The loading and unloading mechanism for a dump truck according to claim 1, characterized in that, The rotation center of the swing arm is located on the side of the limiting component facing the hinge between the door and the box body.

3. The loading and unloading mechanism for a dump truck according to claim 2, characterized in that, The connecting arm extends downwards along the height of the door to the outside of the door.

4. The loading and unloading mechanism for a dump truck according to claim 3, characterized in that, The hinge point between the door and the box body is located below the center of gravity of the door.

5. The loading and unloading mechanism for a dump truck according to claim 1, characterized in that, There are two sets of auxiliary self-unloading components, which are symmetrically arranged on both sides of the box.

6. The loading and unloading mechanism for a dump truck according to claim 1, characterized in that, It also includes baffles on both sides of the door, with the side walls of the box body on both sides of the door parallel to any baffle, and the baffles locking with the box body.

7. A loading and unloading mechanism for a dump truck according to claim 6, characterized in that, The baffle is equipped with a stop block, and the box body is equipped with a positioning component. As the baffle slides along the box body with the box door, the stop block and the positioning component can be abutted to limit the maximum angle between the box body and the box door.

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