A discharge conveyor

Abstract

The utility model relates to a kind of unloading conveyer, it is related to conveying belt technical field, including conveying belt body, multiple adjustable legs and driving device.Adjustable leg is formed by H-shaped movable leg and U-shaped fixed leg insertion, height is adjusted by driving device, realize conveying belt and car floor smooth butt joint, improve loading and unloading safety and efficiency.Driving device preferably telescopic cylinder or screw nut mechanism, the latter is driven screw nut movement by motor through right-angle transmission box, realize accurate lifting.Connection frame is arranged between adjacent legs, and the overall stiffness and torsional capacity are enhanced.Hinged baffle is arranged on both sides of conveying belt, and the adjustable inclination angle can be adjusted by adjusting mechanism, which facilitates material sliding, reduces labor intensity and protects fragile goods.A plugboard and an adjustable support platform are provided at one end to adapt to different working conditions.The utility model has stable structure, strong adaptability and is suitable for efficient unloading operation of different height carriages.

Description

Technical Field

[0001] This utility model relates to the field of conveyor belt technology, and in particular to a conveyor belt for unloading materials. Background Technology

[0002] In modern logistics and agricultural product transportation, the efficiency and safety of loading and unloading bulk materials, especially fragile items such as fruits, are crucial. Traditional unloading methods rely heavily on manual handling or fixed-height conveyor equipment. This is not only labor-intensive and time-consuming, but also prone to problems such as material falling, impact, and blockage due to height differences between the truck bed and the conveyor equipment when dealing with different types of transport vehicles. This severely impacts loading and unloading efficiency and increases the risk of cargo damage. Furthermore, while some existing mobile conveyor belts have certain adjustment functions, their leveling mechanisms are often rudimentary, such as pin-type systems, making it difficult to achieve precise, rapid, and stable height adaptation. This leads to poor docking and still requires significant manual intervention, failing to meet the demands of modern, efficient, and automated loading and unloading operations.

[0003] To solve the above problems, there is an urgent need for an unloading conveyor belt that can flexibly adapt to different chassis heights of transport vehicles, ensure smooth docking, and effectively protect materials. Utility Model Content

[0004] In order to overcome the shortcomings of the prior art, this utility model discloses a conveyor belt for unloading materials.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0006] A conveyor belt for unloading materials, comprising:

[0007] The conveyor belt body is used to transport materials;

[0008] Adjustable support legs, which are multiple legs spaced apart along the bottom of the conveyor belt body; used to adjust the height of the conveyor belt body.

[0009] The drive unit includes multiple drive actuators; the multiple drive actuators are respectively mounted on multiple adjustable outriggers; used to drive the height adjustment of the adjustable outriggers:

[0010] The adjustable outrigger includes:

[0011] The movable support leg has an H-shaped structure, and the vertical side of the movable support leg is a hollow tubular structure. The top of the movable support leg is fixedly connected to the bottom of the conveyor belt body.

[0012] The fixed support leg has a U-shaped structure; the two vertical sides of the fixed support leg are respectively movably connected to the two vertical sides of the movable support leg.

[0013] The drive actuator of the drive unit is installed between the crossbeams of the fixed leg and the movable leg.

[0014] Preferably, the drive actuator of the drive device is a telescopic cylinder, and multiple telescopic cylinders share the same power source.

[0015] Preferably, the drive actuator of the drive device is a lead screw and nut mechanism, and the power source of the drive device is a drive motor; the lead screw and nut mechanism includes:

[0016] A right-angle transmission box is mounted on a fixed support leg, with one of its output shafts facing vertically upwards; the output shaft of the drive motor is connected to the horizontal input shaft of the right-angle transmission box.

[0017] The lead screw is connected to the vertically upward-facing output shaft of the right-angle transmission box and is movably passed through the crossbeam of the movable support leg;

[0018] The nut is threadedly connected to the lead screw and securely fastened to the crossbeam of the movable support leg.

[0019] Preferably, there is one drive motor, which is connected to one of the right-angle transmission boxes; two adjacent right-angle transmission boxes are connected by a transmission shaft.

[0020] Preferably, a connecting frame is installed between each pair of adjacent movable legs.

[0021] Preferably, multiple baffles are provided on both sides of the conveyor belt body, and one side of the baffle is hinged to the frame of the conveyor belt body; an adjustment mechanism for adjusting the tilt angle of the baffle is installed between the baffle and the connecting frame.

[0022] The adjustment mechanism includes:

[0023] An adjusting rod, one end of which is hinged to a baffle; the adjusting rod body is provided with multiple insertion holes spaced apart along its axial direction.

[0024] The fixing sleeve is installed on the connecting bracket;

[0025] The connecting shaft has one end rotatably connected to the fixed sleeve, and the other end has a through hole, into which the adjusting rod is inserted.

[0026] The pin is inserted into one of the holes on the adjusting rod.

[0027] Preferably, one end of the conveyor belt body is vertically inserted with an insert plate.

[0028] Preferably, one end of the conveyor belt body to which the insert plate is inserted is equipped with a height-adjustable support platform; the support platform includes:

[0029] Support plate;

[0030] There are two adjustable support mechanisms, located on the bottom sides of the support plate respectively;

[0031] The adjustable support mechanism includes:

[0032] The connecting rod has one end fixedly connected to the movable support leg, and the other end is provided with a ring sleeve with a pin hole.

[0033] A support rod, the top of which is fastened to a support plate and movably inserted into a ring; the support rod body is provided with multiple limiting holes spaced apart along its axial direction.

[0034] The limiting pin is inserted into the pin hole of the ring sleeve and one of the limiting holes of the support rod.

[0035] By adopting the technical solution described above, this utility model has the following beneficial effects:

[0036] (1) This utility model achieves height adaptability adjustment of the conveyor belt body through adjustable outriggers, ensuring smooth docking with the floor of the transport vehicle, effectively avoiding material slippage, accumulation and blockage, or frequent manual intervention, and significantly improving the safety and efficiency of loading and unloading operations. A rigid connecting frame is set between two adjacent movable outriggers to connect multiple independent outriggers into an integral frame structure, which significantly enhances the lateral connection strength and overall rigidity of the support system. This design effectively improves the torsional resistance of the equipment under uneven ground or eccentric loading conditions, reduces structural deformation and operational shaking caused by uneven local stress, ensures stable operation of the conveyor belt in complex working environments, and extends the service life of the equipment.

[0037] (2) This utility model further includes adjustable baffles on both sides of the conveyor belt body. The baffles are connected to the frame via hinge shafts and can rotate and swing within a certain range. Combined with the adjustment mechanism, the baffles can be adjusted to an inclined guiding state, which facilitates the natural sliding of fruits stacked high in the truck bed onto the conveyor belt bearing surface, avoiding frequent manual bending over to pick up or push them, and significantly reducing the physical labor intensity of the operators. At the same time, this guiding method reduces the risk of collisions between the fruits and personnel during contact, effectively protecting the integrity of fragile materials and improving the continuity and safety of unloading operations.

[0038] (3) This utility model further includes a support platform below the discharge end of the conveyor belt for placing packaging boxes or other containers, realizing integrated continuous operation of unloading and packing, reducing intermediate transfer links, and improving overall operation efficiency. The height of the support platform can be adjusted to suit different sizes of packaging boxes, ensuring that the fruit can fall steadily into the box, avoiding damage caused by excessive drop or overflow caused by insufficient height, thus improving the quality and efficiency of packing operations. Attached Figure Description

[0039] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0040] Figure 2 This is a schematic diagram of the structure of this utility model;

[0041] Figure 3 This is a schematic diagram of the adjustable outriggers;

[0042] Figure 4 This is a schematic diagram of the adjustment mechanism;

[0043] Figure 5 A schematic diagram of the supporting platform.

[0044] In the diagram: 1. Conveyor belt body; 2. Adjustable support leg; 2-1. Movable support leg; 2-2. Fixed support leg; 3. Drive unit; 3-1. Drive motor; 3-2. Right-angle transmission box; 3-3. Lead screw; 3-4. Nut; 3-5. Drive shaft; 4. Connecting frame; 5. Baffle; 6. Adjusting mechanism; 6-1. Adjusting rod; 6-2. Fixing sleeve; 6-3. Connecting shaft; 6-4. Pin; 7. Insert plate; 8. Support platform; 8-1. Support plate; 8-2. Connecting rod; 8-3. Support rod; 8-4. Limit pin. Detailed Implementation

[0045] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0046] In the description of this utility model, it should be noted that the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. They are only used to facilitate the description of this utility model and to simplify the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] Example 1:

[0049] Combined with appendix Figures 1-3 A conveyor belt for unloading materials includes a conveyor belt body 1, adjustable support legs 2, and a drive unit 3. The conveyor belt body 1 adopts a commercially available standard structure and its function is to continuously transport bulk materials, particularly suitable for unloading fragile items such as fruit from transport vehicles. To meet the unloading docking requirements caused by differences in chassis height among different transport vehicles, multiple adjustable support legs 2 are spaced apart along the length of the bottom of the conveyor belt body 1. By adjusting the height of each adjustable support leg 2, the overall height of the conveyor belt body 1 can be adaptively adjusted, ensuring that the feed end of the conveyor belt can smoothly dock with the floor of the vehicle, effectively avoiding material slippage, impact, accumulation, blockage, or frequent manual intervention due to height misalignment, thus improving the safety and efficiency of loading and unloading operations.

[0050] The drive device 3 is used to perform the height adjustment action of the adjustable support leg 2. It includes multiple drive actuators, which are respectively installed between the structural components of each adjustable support leg 2 to achieve independent or synchronous drive control of each adjustable support leg 2. Specifically, the adjustable support leg 2 consists of a movable support leg 2-1 and a fixed support leg 2-2. The movable support leg 2-1 has an overall H-shaped frame structure, and its two vertical sides are made of hollow tubular profiles, which have high bending stiffness and guiding stability. The top of the movable support leg 2-1 is fixedly connected to the bottom of the support frame of the conveyor belt body 1 by welding or bolting, forming a liftable load-bearing unit. The fixed support leg 2-2 has a U-shaped structure, and its two vertical arms are respectively inserted into the hollow vertical side of the movable support leg 2-1 to form a sliding fit connection, so that the movable support leg 2-1 can move up and down in the vertical direction relative to the fixed support leg 2-2 to achieve the height adjustment function.

[0051] The drive actuator of the drive device 3 is located between the fixed support leg 2-2 and the movable support leg 2-1 in the transverse connecting beam, and the lifting drive is completed by the change in the relative position between the two. Two feasible structural solutions are provided for the specific structure of the drive device 3:

[0052] In the first scheme, the drive actuator adopts a telescopic cylinder structure. Multiple telescopic cylinders are respectively installed between the fixed outrigger 2-2 and the movable outrigger 2-1 of each adjustable outrigger 2, and all telescopic cylinders share the same hydraulic or pneumatic power source, which is supplied in parallel through pipelines to achieve multi-point synchronous lifting. This scheme has a compact structure, fast response speed, and is suitable for scenarios that require rapid height adjustment.

[0053] In the second embodiment, the drive actuator employs a lead screw and nut transmission mechanism, powered by a drive motor 3-1. This lead screw and nut mechanism includes a right-angle transmission box 3-2, a lead screw 3-3, and a nut 3-4. The right-angle transmission box 3-2 is mounted on the crossbeam of the fixed support leg 2-2, and has a horizontal input shaft and a vertically upward-extending output shaft. The output shaft of the drive motor 3-1 is connected to the horizontal input shaft of the right-angle transmission box 3-2 via a coupling or chain drive. The lead screw 3-3 is fixedly connected to the vertical output shaft of the right-angle transmission box 3-2 and extends vertically upward, passing through the central hole of the crossbeam of the movable support leg 2-1, forming a rotatable but axially fixed installation state. The nut 3-4 is fitted onto the lead screw 3-3 and forms a threaded engagement with it; simultaneously, the outer circumference of the nut 3-4 is securely connected to the crossbeam of the movable support leg 2-1. When the drive motor 3-1 starts, the power is transmitted to the lead screw 3-3 through the right-angle transmission box 3-2, causing it to rotate. This, in turn, drives the nut 3-4 to rise and fall along the axis of the lead screw. Since the lead screw 3-3 itself is restricted from axial movement, the rising and falling motion of the nut 3-4 will directly push the movable support leg 2-1 and the conveyor belt body 1 connected to it to rise and fall as a whole, thus completing the height adjustment.

[0054] Furthermore, to achieve synchronized operation among multiple adjustable legs 2 and reduce equipment costs, only one drive motor 3-1 is configured. If drive motor 3-1 is a bidirectional output motor, it is connected to the two right-angle transmission boxes 3-2 located in the middle. If drive motor 3-1 is a single output motor, it is connected only to the right-angle transmission box 3-2 located at one end. The remaining adjacent right-angle transmission boxes 3-2 transmit power through a transmission shaft 3-5, with both ends of the transmission shaft 3-5 connected to the input or output shaft of the adjacent right-angle transmission box 3-2, forming a series transmission chain. This arrangement ensures synchronized operation of all lead screw and nut mechanisms, preventing structural jamming or uneven force due to asynchrony, while also reducing the number of motors, saving manufacturing and maintenance costs, and improving system reliability.

[0055] Example 2:

[0056] Combined with appendix Figures 3-4 A conveyor belt for unloading has the same basic structure as Embodiment 1, but with the following difference: the overall structural stability and functionality are further enhanced based on Embodiment 1. Specifically, a connecting frame 4 is provided between each pair of adjacent movable legs 2-1. The connecting frame 4 is a rigid frame structure, with its two ends fixedly connected to the vertical arms or crossbeams of the movable legs 2-1 on both sides. By adding the connecting frame 4, the lateral connection strength between the multiple adjustable legs 2 is effectively improved, enhancing the overall rigidity and torsional resistance of the entire support system. Especially under uneven ground or uneven load conditions, it can significantly reduce operational instability caused by local deformation.

[0057] In addition, multiple baffles 5 are provided along the length of both sides of the conveyor belt body 1. One edge of each baffle 5 is hinged to the corresponding side of the frame of the conveyor belt body 1 via a hinge shaft, allowing the baffle 5 to rotate and swing within a certain angle range around the hinge shaft. An adjustment mechanism 6 is provided between the baffle 5 and the connecting frame 4 to adjust the tilt angle of the baffle 5 relative to the plane of the conveyor belt body 1. This design is suitable for the situation where fruit is transferred from the truck bed to the conveyor belt during unloading operations: when the fruit is piled high or close to the edge in the truck bed, the baffle 5 can be adjusted to an inclined guiding state by the adjustment mechanism 6, allowing the fruit to slide down the surface of the baffle 5 onto the bearing surface of the conveyor belt body 1 under the action of gravity. This eliminates the need for frequent bending over to pick up or manually push the fruit, reducing the physical burden on the operators and avoiding damage to the fruit caused by manual handling, thus improving the continuity and safety of the unloading operation.

[0058] The adjustment mechanism 6 comprises an adjustment rod 6-1, a fixed sleeve 6-2, and a connecting shaft 6-3. One end of the adjustment rod 6-1 is hinged to the outer surface of the baffle 5, while the other end is free. Multiple circular insertion holes are evenly distributed along the axial direction of the rod. The fixed sleeve 6-2, a tubular structure with its axis horizontally arranged, is fixedly mounted on the connecting frame 4. One end of the connecting shaft 6-3 is inserted into the fixed sleeve 6-2, achieving a circumferentially fixed but axially limited rotational connection. The other end has a through hole into which the free end of the adjustment rod 6-1 is inserted, forming a detachable hinged connection. A pin 6-4 is inserted into the insertion hole of the adjustment rod 6-1 near the fixed sleeve 6-2, thereby locking the length of the adjustment rod 6-1. By selecting different insertion holes to insert the pin 6-4, the effective support length of the adjustment rod 6-1 can be changed, thereby causing the baffle 5 to rotate around its hinge axis to different tilt angles, achieving step-like angle adjustment. After adjustment, pin 6-4 provides a reliable mechanical limit to prevent the baffle 5 from rotating unexpectedly during operation.

[0059] Example 3:

[0060] Combined with appendix Figure 5 A conveyor belt for unloading, based on Embodiment 1 or Embodiment 2, further optimizes the end-of-line material control and packing functions. Specifically, a vertical slot structure is provided at the tail end, i.e., the discharge end, of the conveyor belt body 1. An insert plate 7 is vertically inserted into the end frame of the conveyor belt body 1 through this slot, with its bottom extending below the conveyor belt bearing surface. The function of the insert plate 7 is to temporarily close the discharge port of the conveyor belt body 1 when needed, preventing fruit from falling from the end due to inertia or vibration during the conveying process. This is particularly suitable for short-distance conveying or when materials are retained on the belt surface during pauses in operation. The insert plate 7 is detachable or pull-out, facilitating flexible activation or removal according to the operating status.

[0061] Furthermore, a support platform 8 is installed at one end of the conveyor belt body 1 where the insert plate 7 is located. This support platform 8 is situated below the conveyor belt outlet and is used to place packaging boxes or other containers. By directly conveying the fruit into the packaging box above the support platform 8, unloading and packing are integrated, reducing intermediate transfer steps. To accommodate the height differences of packaging boxes of different sizes, the support platform 8 has a height adjustment function, which can be adjusted according to the actual height of the packaging box used, ensuring that the fruit falls smoothly from the conveyor belt into the box, avoiding throwing or overflowing.

[0062] The support platform 8 includes a support plate 8-1 and an adjustable support mechanism for adjusting its height. Two adjustable support mechanisms are provided, symmetrically arranged on the left and right sides of the bottom of the support plate 8-1 to ensure load-bearing balance. Each adjustable support mechanism consists of a connecting rod 8-2, a support rod 8-3, and a limiting pin 8-4. One end of the connecting rod 8-2 is bolted to the side wall or crossbeam of the movable leg 2-1, and the other end has a ring structure with radial pin holes. The top of the support rod 8-3 is welded or screwed to the bottom surface of the support plate 8-1. Its rod body is a vertically arranged solid or hollow rod, inserted into the ring of the connecting rod 8-2 to form a sliding insertion fit. Multiple limiting holes are equidistantly spaced along the axial direction on the support rod 8-3. The limiting pin 8-4 is a cylindrical pin structure, which passes through the pin hole on the ring of the connecting rod 8-2 and a limiting hole on the support rod 8-3 that is aligned with it, so as to position the support plate 8-1 at the current height.

[0063] When height adjustment is required, pull out the limit pin 8-4, manually move the support rod 8-3 up and down to the desired position, align the other limit hole with the ring pin hole, and then reinsert the limit pin 8-4 to complete the height setting. This structure is simple, reliable, and easy to operate, requiring no additional tools for adjustment, and meets the need for rapid on-site adaptation to different packaging containers.

[0064] The parts of this utility model not described in detail are prior art. It is obvious to those skilled in the art that this utility model is not limited to the details of the above exemplary embodiments, and that this utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and are intended to include all changes that fall within the meaning and scope of equivalents within this utility model.

Claims

1. A conveyor belt for unloading materials, characterized in that, include: Conveyor belt body (1), used for transporting materials; Adjustable support legs (2) are arranged at intervals along the bottom of the conveyor belt body (1); used to adjust the height of the conveyor belt body (1); The drive unit (3) includes multiple drive actuators; the multiple drive actuators are respectively mounted on multiple adjustable legs (2); Used to drive the height adjustment of the adjustable outriggers (2): The adjustable outrigger (2) includes: The movable support leg (2-1) has an H-shaped structure, and the vertical side of the movable support leg (2-1) is a hollow tubular structure. The top of the movable support leg (2-1) is fixedly connected to the bottom of the conveyor belt body (1). The fixed support leg (2-2) has a U-shaped structure; the two vertical sides of the fixed support leg (2-2) are respectively movably connected to the two vertical sides of the movable support leg (2-1); The drive actuator of the drive device (3) is installed between the crossbeams of the fixed leg (2-2) and the movable leg (2-1).

2. The unloading conveyor belt as described in claim 1, characterized in that: The drive actuator of the drive device (3) is a telescopic cylinder, and multiple telescopic cylinders share the same power source.

3. The unloading conveyor belt as described in claim 1, characterized in that, The drive actuator of the drive device (3) is a lead screw and nut mechanism, and the power source of the drive device (3) is a drive motor (3-1); the lead screw and nut mechanism includes: A right-angle transmission box (3-2) is mounted on a fixed support leg (2-2), with one of its output shafts facing vertically upwards; the output shaft of the drive motor (3-1) is connected to the horizontal input shaft of the right-angle transmission box (3-2). The lead screw (3-3) is connected to the vertically upward output shaft of the right-angle transmission box (3-2) and is movably passed through the crossbeam of the movable support leg (2-1); Nut (3-4) is threaded to lead screw (3-3) and fastened to the crossbeam of movable support leg (2-1).

4. The unloading conveyor belt as described in claim 3, characterized in that: The drive motor (3-1) is a single unit, which is connected to one of the right-angle transmission boxes (3-2); two adjacent right-angle transmission boxes (3-2) are connected by a transmission shaft (3-5).

5. The unloading conveyor belt as described in claim 1, characterized in that: A connecting frame (4) is installed between each of the two adjacent movable outriggers (2-1).

6. The unloading conveyor belt as described in claim 5, characterized in that: Multiple baffles (5) are provided on both sides of the conveyor belt body (1). One side of the baffle (5) is hinged to the frame of the conveyor belt body (1). An adjustment mechanism (6) for adjusting the tilt angle of the baffle (5) is installed between the baffle (5) and the connecting frame (4). The adjustment mechanism (6) includes: An adjusting rod (6-1) is hinged at one end to a baffle (5); the adjusting rod (6-1) has multiple insertion holes spaced apart along its axial direction; The fixing sleeve (6-2) is installed on the connecting bracket (4); The connecting shaft (6-3) has one end rotatably connected to the fixed sleeve (6-2), and the other end is provided with a through hole, into which the adjusting rod (6-1) is inserted; The pin (6-4) is inserted into one of the holes of the adjusting rod (6-1).

7. The unloading conveyor belt as described in claim 1, characterized in that: One end of the conveyor belt body (1) is vertically inserted with a plate (7).

8. The unloading conveyor belt as described in claim 7, characterized in that: The conveyor belt body (1) has an insert plate (7) inserted into one end, and a height-adjustable support platform (8) is installed thereon; the support platform (8) includes: Support plate (8-1); Two adjustable support mechanisms are located on the bottom sides of the support plate (8-1); The adjustable support mechanism includes: The connecting rod (8-2) has one end fastened to the movable support leg (2-1), and the other end is provided with a ring sleeve with a pin hole. The support rod (8-3) is fastened to the top of the support plate (8-1) and movably inserted into the ring sleeve; the support rod (8-3) has a plurality of limiting holes spaced apart along its axial direction; The limiting pin (8-4) is inserted into the pin hole of the ring sleeve and one of the limiting holes of the support rod (8-3).

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