Tire mobile ship loader

Abstract

The utility model provides a kind of tyre mobile ship loader, it is related to ship loader device technical field, including frame body, frame body middle part is fixedly arranged with receiving hopper, receiving hopper side is rotatably arranged with springboard, receiving hopper bottom is fixedly arranged with material conveying mechanism, frame body bottom is provided with rotating part and the first drive source that can drive its rotation, rotating part bottom is provided with travelling wheel group and the second drive source that can drive its up-down telescopic, travelling wheel group includes rear axle differential and the driving connection of a pair of driving wheel with it, rear axle differential top is fixedly arranged with the third drive source that is drivingly connected with it, third drive source can drive driving wheel rotation, by the second drive source driving travelling wheel group telescopic, make the device can be quickly lifted and transfer, significantly improve cabin switching efficiency;Utilize rear axle differential to drive one side double-wheel rotation, provide greater ground contact area and anti-rollover ability, when turning or passing bumpy road, automatically adjust the speed difference of both sides wheel, avoid the risk of collision instability caused by deviation.

Description

Technical Field

[0001] This utility model relates to the technical field of ship loading equipment, and in particular to a tire-mounted mobile ship loading machine. Background Technology

[0002] Ship loaders are used to load bulk cargo into the cargo hold of ships. Their main body can be fixed or moved along the dock track. They transport cargo through a continuous conveying mechanism. The cargo is transported by a conveyor belt inside the boom to a telescopic and pitch-adjustable unloading chute at the end. The operator controls the boom posture and the position of the chute to make it hang above the target hatch. Finally, the cargo falls from the chute into the hold, completing the loading operation.

[0003] However, existing ship loaders have significant limitations in the loading process. First, after the equipment is positioned and fixed to begin loading operations, if it needs to be moved to load adjacent holds or serve another vessel, the movement process is often very inconvenient. Operators usually need to retract the cantilever, fold the ramp, and release necessary fixing or locking devices. This not only consumes time and reduces operational efficiency but also increases operational complexity. Second, for ship loaders with walking capabilities, they usually use a single drive source or multiple drive sources mechanically linked to drive the double-sided traveling wheels. When moving along the dock track, if they encounter turns or uneven road sections, the traveling wheels on both sides of the equipment are prone to slippage due to inconsistent travel, or the inner wheel may slip or the outer wheel may be dragged, resulting in a deviation in the travel trajectory. For large machines like ship loaders with high center of gravity and large mass, this deviation not only makes it difficult for the chute to accurately align with the target position but also creates safety hazards such as equipment derailment, collision with surrounding facilities, or structural instability during movement, threatening dock operation safety and the stability of the equipment itself. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this utility model provides a tire-mounted mobile ship loader, which solves the problems of cumbersome and time-consuming movement and adjustment of existing ship loaders, as well as the risk of trajectory deviation caused by rigid drive transmission, leading to positioning inaccuracies and collision instability.

[0005] According to an embodiment of this utility model, a tire-mounted mobile ship loader includes a frame, a receiving hopper fixedly disposed in the middle of the frame, a ramp rotatably disposed on one side of the receiving hopper, a conveying mechanism fixedly disposed at the bottom of the receiving hopper, a rotating component and a first drive source capable of driving its rotation disposed at the bottom of the frame, a traveling wheel set and a second drive source capable of driving its vertical extension and retraction disposed at the bottom of the rotating component, the traveling wheel set including a rear axle differential and a pair of drive wheels driven by it, a third drive source fixedly disposed at the top of the rear axle differential and driven by it, the third drive source capable of driving the drive wheels to rotate.

[0006] The technical principle of this utility model is as follows: When the device needs to be adjusted after loading operations have begun, the second drive source can be directly started to drive the walking wheel group to extend relative to the frame, thereby raising the entire device. Then, the third drive source is started to control the drive wheel to rotate, driving the device to move in a straight line. When the device needs to turn, the third drive source is started to drive the rotating parts to rotate, thereby realizing the device turning. When turning, the rear axle differential will automatically adjust the speed difference between the two drive wheels to maintain stable vehicle driving.

[0007] Furthermore, the rotating component includes a slewing bearing, which is rotatably connected to the four corners of the bottom of the frame. The first drive source includes a hydraulic motor, the output end of which is fixedly connected to the slewing bearing.

[0008] Furthermore, a first support arm is fixedly connected to the bottom of the slewing bearing, and a second support arm is hinged to the end of the first support arm. The rear axle differential is rotatably mounted at the end of the second support arm.

[0009] Furthermore, the second drive source includes a hydraulic cylinder, the bottom of which is hinged to the bottom of the first support arm, and one side of the output end of the hydraulic cylinder is hinged to the inner side of the second support arm.

[0010] Furthermore, a reducer is fixedly connected to the top of the rear axle differential, and the third drive source is fixedly installed on one side of the reducer. The third drive source includes a motor, the output end of which is fixedly connected to the input end of the reducer, and the output end of the reducer is fixedly connected to the input end of the rear axle differential.

[0011] Furthermore, a splined shaft is fixedly connected to the output end of the rear axle differential, and the splined shaft is fixedly connected to the drive wheel via a hub.

[0012] Furthermore, the drive wheel is configured as a parallel double wheel, the wheel hub is fixedly disposed between the double wheels, a wheel-side reducer is fixedly disposed at the end of the spline shaft, the spline shaft is fixedly connected to the input end of the wheel-side reducer, and the output end of the wheel-side reducer is fixedly connected to the wheel hub.

[0013] Furthermore, a brake drum is fixedly installed on the outer side of the wheel hub, a brake pad is provided with a gap on the inner side of the brake drum, and a brake is rotatably installed on one side of the brake pad, the brake being able to rotate to make the brake pad press against the brake drum.

[0014] Furthermore, the material conveying mechanism includes a conveyor belt and several support rollers fixedly installed at the bottom of the conveyor belt. A belt conveyor frame is fixedly extended on one side of the frame, and the support rollers are fixedly installed along the extension direction of the belt conveyor frame.

[0015] Furthermore, the number of the scaffolding planks is set to 1-3, and the scaffolding planks are hinged to the other three sides of the frame away from the conveyor belt frame. Support blocks for support are fixedly provided at the bottom of the scaffolding planks.

[0016] Compared with existing technologies, this utility model has the following advantages: By driving the extension and retraction of the walking wheel set through the second drive source, the device can quickly raise and transfer positions without storing the belt conveyor frame and ramp, significantly improving the efficiency of cabin switching; by using the rear axle differential to drive the rotation of the two wheels on one side, it can provide a larger ground contact area and anti-rollover capability. When turning or passing through bumpy roads, it automatically adjusts the speed difference between the two wheels to eliminate the risk of slippage or dragging, maintaining the accuracy of the straight driving trajectory and enhancing the stability of turning, effectively avoiding the risk of positioning inaccuracy and collision instability caused by deviation, and comprehensively improving the safety of movement and the reliability of operation. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0018] Figure 2 This is a schematic diagram of the walking wheel assembly structure according to an embodiment of the present utility model.

[0019] Figure 3 This is a schematic diagram of the walking wheel assembly according to an embodiment of the present utility model.

[0020] Figure 4 This is a schematic diagram of the braking structure assembly in the walking wheel assembly according to an embodiment of the present utility model.

[0021] In the above attached figures: 1. Frame; 2. Walking wheel set; 21. Rear axle differential; 22. Drive wheel; 221. Wheel-side reducer; 222. Dust cover; 223. Splined shaft; 224. Wheel hub; 23. Slewing bearing; 24. First support arm; 25. Second support arm; 251. Joint shaft; 26. Hydraulic cylinder; 27. Motor; 28. Reducer; 29. ​​Brake drum; 291. Brake; 3. Plank; 31. Support block; 4. Receiving hopper; 5. Belt conveyor frame; 51. Conveyor belt. Detailed Implementation

[0022] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0023] like Figure 1As shown in the figure, this utility model embodiment proposes a tire-mounted mobile ship loader, including a frame 1. A receiving hopper 4 is fixedly installed in the middle of the frame 1, and a ramp 3 is rotatably installed on one side of the receiving hopper 4. The ramp 3 can rotate to the end to overlap with the ground to form a travel channel for vehicles to unload. The ramp 3 can be driven to rotate to a vertical or ground-overlapping state by a winch, a high-power motor or a hydraulic motor, thereby realizing the raising and lowering of the ramp 3.

[0024] like Figure 1-3 As shown, in this embodiment, a conveying mechanism is fixedly installed at the bottom of the receiving hopper 4. The conveying mechanism includes a conveyor belt 51 and several support rollers fixedly installed at the bottom of the conveyor belt 51. A belt conveyor frame 5 is fixedly extended on one side of the frame 1 to provide rigid support for the conveying path of the conveyor belt 51. Several support rollers are equidistantly fixed along the extension direction of the belt conveyor frame 5 to form a continuous support surface. A discharge chute (not shown in the figure) is provided at the end of the belt conveyor frame 5. The discharge chute receives material from the conveyor belt 51 and guides the material to the target hatch. The conveyor belt 51 and the discharge chute are conventional installations in the art. The details will not be elaborated here. The bottom of the frame 1 is provided with a rotating component and a first drive source that can drive its rotation. The rotating component includes a slewing bearing 23 for load transfer and rotational support. Preferably, there are four slewing bearings 23, which are symmetrically rotatably connected at the four corners of the bottom of the frame 1. The first drive source includes, but is not limited to, a hydraulic motor, an electric motor, a pneumatic motor, or other mechanisms that can drive the slewing bearing 23 to rotate. In this embodiment, the first drive source is a hydraulic motor. The output end of the hydraulic motor is fixedly connected to the top of the slewing bearing 23. The direction of movement of this device is controlled by driving the slewing bearing 23 to rotate.

[0025] like Figure 1-3As shown, in this embodiment, the bottom of the slewing bearing 23 is provided with a walking wheel set 2 and a second drive source capable of driving its vertical extension and retraction. Specifically, a first support arm 24 is fixedly connected to the bottom of the slewing bearing 23. The first support arm 24 includes a disc surface that is fitted and fixed to the slewing bearing 23 and a support arm fixedly disposed on one side of the disc surface and extending outward at an obtuse angle to the disc surface. A second support arm 25 is hinged to the end of the support arm. A joint shaft 251 is fixedly disposed at the end of the second support arm 25. The walking wheel set 2 is rotatably disposed on the joint shaft 251. The joint shaft 251 can meet the rotation requirements of the walking wheel set 2, enabling it to adaptively adjust the contact angle with the ground, increasing the contact surface and grip. The ground stability ensures that the wheel sets on both sides of the axle can evenly touch the ground when encountering bumpy or slightly inclined roads. The second drive source includes, but is not limited to, a hydraulic cylinder 26, an electric push rod / electric cylinder, a cylinder, or other components that can drive the extension and retraction of the walking wheel set 2. In this embodiment, the second drive source is set as a hydraulic cylinder 26. The bottom of the hydraulic cylinder 26 is hinged to the bottom of the disc surface of the first support arm 24, and one side of the output end of the hydraulic cylinder 26 is hinged to the inner side of the second support arm 25. When the output end of the hydraulic cylinder 26 extends and retracts, it can drive the second support arm 25 to move relative to the first support arm 24, thereby changing the relative distance between the walking wheel set 2 and the frame 1, so that the entire device is lifted.

[0026] like Figure 1-3As shown, in this embodiment, the walking wheel set 2 includes a rear axle differential 21 and a pair of drive wheels 22 driven by it. The two drive wheels 22 are respectively rotatably disposed on both sides of the rear axle differential 21. A dust cover 222 is fixedly disposed on the side of the drive wheel 22 near the rear axle differential 21. The bottom of the rear axle differential 21 is rotatably connected to the joint shaft 251 at the end of the second support arm 25. A third drive source is fixedly disposed on its top and driven by it. The third drive source can drive the drive wheels 22 to rotate. Specifically, a reducer 28 is fixedly connected to the top of the rear axle differential 21. The third drive source is fixedly disposed on one side of the reducer 28. The third drive source includes, but is not limited to, a motor, a hydraulic motor, a pneumatic motor, an internal combustion engine, or other components capable of driving the drive wheels 22 to rotate. In this embodiment, the third drive source is a motor 27, preferably a high-power, high-torque AC servo motor or a brushless DC motor, which has precise speed and torque control capabilities. The reducer 28 can be a precision planetary gear reducer or a worm gear reducer. The output end of the motor 27 is fixedly connected to the input end of the reducer 28 through a coupling or flange. The output end of the reducer 28 is fixedly connected to the input end of the rear axle differential 21. The reducer 28 converts the high-speed, low-torque output of the motor 27 into the low-speed, high-torque output required by the drive wheel 22 to meet the heavy-load movement requirements. Furthermore, the output end of the rear axle differential 21 is fixedly connected to a splined shaft 223, which is fixedly connected to the drive wheel 22 through a hub 224.

[0027] The technical principle of this utility model is as follows: When the device needs to be adjusted after loading operations have begun, the hydraulic cylinder 26 can be directly started to drive the walking wheel group 2 to extend relative to the frame 1, thereby raising the entire device, lifting the belt conveyor frame 5 and the ramp 3 off the ground, and then starting the motor 27 to control the drive wheel 22 to rotate, driving the device to move in a straight line. When the device needs to turn, the hydraulic motor is started to drive the slewing bearing 23 to rotate, thereby realizing the device turning. When turning, the rear axle differential 21 will automatically adjust the speed difference of the two drive wheels 22 to maintain stable vehicle driving.

[0028] This invention uses a hydraulic cylinder 26 to drive the extension and retraction of the walking wheel assembly 2, enabling the device to quickly raise and transfer positions without folding in the belt conveyor frame 5 and the ramp 3, significantly improving the efficiency of cabin switching. Utilizing the rear axle differential 21 to drive the rotation of the two wheels on one side provides a larger ground contact area and anti-rollover capability. When turning or traversing bumpy roads, it automatically adjusts the speed difference between the two wheels, eliminating the risk of slippage or dragging. This maintains the accuracy of the straight-line driving trajectory while enhancing turning stability, effectively avoiding the risks of positioning inaccuracies and collision instability caused by deviation, and comprehensively improving mobile safety and operational reliability.

[0029] like Figure 2-3As shown, according to another embodiment, further, the drive wheel 22 is configured as a parallel double wheel, that is, two tires are arranged coaxially and rotate side by side to improve the load-bearing capacity of the device. Specifically, the two wheels (inner wheel and outer wheel) are respectively fitted onto the outer flange of the hub 224 through their central holes. The inner wheel is directly attached to the hub flange and fastened with an inner wheel nut, while the outer wheel is attached to the outside of the inner wheel and fastened with an outer wheel nut. The two wheels are rigidly and firmly clamped onto the same hub flange to form a stable whole. At the same time, the end of the spline shaft 223 is fixedly provided with... A wheel-side reducer 221 is provided. The wheel-side reducer 221 can be configured as a planetary gear type. The splined shaft 223 is fixedly connected to the input end of the wheel-side reducer 221 via an external spline, thereby transmitting power from the rear axle differential 21 to the wheel-side reducer 221. The output end of the wheel-side reducer 221 is fixedly connected to the wheel hub 224. The wheel-side reducer 221 provides an additional reduction ratio, thereby further reducing the rotational speed transmitted from the splined shaft 223 and significantly increasing the torque, enabling the drive axle to withstand a greater load.

[0030] like Figure 2-4 As shown, according to another embodiment, further, a brake drum 29 is fixedly sleeved on the outer side of the wheel hub 224. The brake drum 29 rotates synchronously with the wheel hub 224. An arc-shaped brake pad is hinged to the inner side of the brake drum 29 by a pin or support pin. Friction material is fixed on the outer arc surface of the brake pad to increase its service life. A preset working gap is maintained between the brake pad and the inner wall of the brake drum 29. One end of the brake pad is pulled towards the center of the brake drum 29 by a return spring to ensure that the brake pad is separated from the brake drum 29 in the non-braking state, maintaining the working gap. A brake 291 is rotatably arranged on the inner side of the other end of the brake pad. A cam is fixedly connected to the brake 291 near the end of the brake pad. The cam can rotate to abut against the brake pad and press the brake pad against the brake drum 29. A drive mechanism (not shown in the figure) is also fixedly provided at the end away from the brake pad. The drive mechanism includes an air chamber push rod, a hydraulic pump or a hand brake lever. The drive mechanism can drive the brake 291 to rotate around its axis. Based on the above improvement, when braking is required, the drive mechanism drives the brake 291 to rotate. The cam at one end of the brake 291 rotates to abut against the brake pad. The brake pad overcomes the tension of the return spring and rotates outward. The outer arc surface of the brake pad makes frictional contact with the inner wall of the rotating brake drum 29 and abuts against it, thereby generating a braking torque to decelerate or stop the wheel. When the brake is released, the drive mechanism resets, and the brake pad rotates back to the initial position under the action of the return spring to restore the working clearance. In this embodiment, each set of drive wheels 22 is equipped with an independent braking system, which can ensure that multiple sets of wheels brake synchronously during braking, further ensuring stable vehicle driving.

[0031] like Figure 1 As shown, further, the number of the scaffolding 3 is set to 1-3. The scaffolding 3 is hinged to the other three sides of the frame 1 away from the belt conveyor frame 5. The bottom of the scaffolding 3 is fixedly provided with a support block 31 for support. Multiple scaffolding 3 can be used for multiple vehicles to unload at the same time, which speeds up the material conveying speed.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A tire-mounted mobile ship loader, comprising a frame (1), wherein a receiving hopper (4) is fixedly disposed in the middle of the frame (1), a ramp (3) is rotatably disposed on one side of the receiving hopper (4), and a conveying mechanism is fixedly disposed at the bottom of the receiving hopper (4), characterized in that, The frame (1) has a rotating component and a first drive source that can drive it to rotate at the bottom. The rotating component has a walking wheel set (2) and a second drive source that can drive it to extend and retract up and down at the bottom. The walking wheel set (2) includes a rear axle differential (21) and a pair of drive wheels (22) connected to it. The rear axle differential (21) has a third drive source that is fixedly connected to it at the top. The third drive source can drive the drive wheels (22) to rotate.

2. The tire-mounted mobile ship loader as described in claim 1, characterized in that: The rotating component includes a slewing bearing (23), which is rotatably connected to the four corners of the bottom of the frame (1). The first drive source includes a hydraulic motor, and the output end of the hydraulic motor is fixedly connected to the slewing bearing (23).

3. The tire-mounted mobile ship loader as described in claim 2, characterized in that: The bottom of the slewing bearing (23) is fixedly connected to a first support arm (24), and the end of the first support arm (24) is hinged to a second support arm (25). The rear axle differential (21) is rotatably disposed at the end of the second support arm (25).

4. The tire-mounted mobile ship loader as described in claim 3, characterized in that: The second drive source includes a hydraulic cylinder (26), the bottom of which is hinged to the bottom of the first support arm (24), and the output end of the hydraulic cylinder (26) is hinged to the inner side of the second support arm (25).

5. A tire-mounted mobile ship loader as described in claim 1, characterized in that: A reducer (28) is fixedly connected to the top of the rear axle differential (21). The third drive source is fixedly installed on one side of the reducer (28). The third drive source includes a motor (27). The output end of the motor (27) is fixedly connected to the input end of the reducer (28). The output end of the reducer (28) is fixedly connected to the input end of the rear axle differential (21).

6. A tire-mounted mobile ship loader as described in claim 5, characterized in that: The output end of the rear axle differential (21) is fixedly connected to a spline shaft (223), and the spline shaft (223) is fixedly connected to the drive wheel (22) through a hub (224).

7. A tire-mounted mobile ship loader as described in claim 6, characterized in that: The drive wheel (22) is configured as a parallel double wheel, the hub (224) is fixedly disposed between the double wheels, and a wheel-side reducer (221) is fixedly disposed at the end of the spline shaft (223). The spline shaft (223) is fixedly connected to the input end of the wheel-side reducer (221), and the output end of the wheel-side reducer (221) is fixedly connected to the hub (224).

8. A tire-mounted mobile ship loader as described in claim 6, characterized in that: A brake drum (29) is fixedly installed on the outer side of the wheel hub (224). A brake pad is provided on the inner side of the brake drum (29). A brake (291) is rotatably installed on one side of the brake pad. The brake (291) can rotate to make the brake pad press against the brake drum (29).

9. A tire-mounted mobile ship loader as described in claim 1, characterized in that: The material conveying mechanism includes a conveyor belt (51) and several support rollers fixedly installed at the bottom of the conveyor belt (51). A belt frame (5) is fixedly extended on one side of the frame (1), and the support rollers are fixedly installed along the extension direction of the belt frame (5).

10. A tire-mounted mobile ship loader as described in claim 9, characterized in that: The number of the scaffolding planks (3) is set to 1-3. The scaffolding planks (3) are hinged to the other three sides of the frame (1) away from the belt conveyor frame (5). The bottom of the scaffolding plank (3) is fixedly provided with a support block (31) for support.

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