Material grabbing machine with oil supplementing function

Abstract

The utility model relates to the technical field of material carrying devices, in particular to a material grabbing machine with an oil supplementing function. The material grabbing machine with the oil supplementing function comprises a machine frame and a rotating platform installed on the machine frame, the rotating platform can rotate relative to the machine frame, a material grabbing arm installation base, an engine and a fuel tank matched with the engine are arranged on the rotating platform, the fuel tank on the rotating platform is a main fuel tank, and an auxiliary fuel tank for storing fuel is arranged on the machine frame. An oil supplementing pipeline is arranged between the auxiliary oil tank and the main oil tank and used for supplementing fuel oil in the auxiliary oil tank into the main oil tank, the working time of an engine is prolonged, when the main oil tank and the auxiliary oil tank do not have fuel oil, fuel oil filling operation is conducted, the fuel oil filling operation frequency is reduced, and the labor intensity of operators can be reduced.

Description

Technical Field

[0001] This utility model relates to the field of material handling device technology, specifically to a material handling machine with oil replenishment function. Background Technology

[0002] In modern industrial production and logistics, material handling machines are important equipment that grab and transfer materials. They are widely used in ports, docks, steel mills, mines, construction sites, and other locations. The appearance of a material handling machine can be found in the Chinese design patent with authorization announcement number CN308952818S. The basic structure of a material handling machine typically includes a frame and a rotating platform that can rotate relative to the frame. The frame is generally equipped with a traveling mechanism for moving the mobile material handling machine. The rotating platform houses the operator's cab, material handling arm mounting base, engine, hydraulic pump station, cooling system, fuel tank, counterweight, pipelines, electrical circuits, walkway, and other equipment and facilities. The fuel tank stores fuel for the engine. When the engine is running, it drives the hydraulic pump station. The hydraulic pump station drives the rotating platform, traveling mechanism, material handling arm, and other moving parts through different hydraulic pipelines. To connect the hydraulic pipelines on the rotating platform with those on the frame, a central swivel joint is used at the swivel connection point to allow hydraulic oil circuit conduction and the rotation of the rotating platform relative to the frame.

[0003] Currently, when the material handling machine runs out of fuel, it is either refueled using a fuel truck or manually. Operators either carry fuel drums up the platform to refuel, or they climb up the platform to use the fuel nozzle from the fuel truck. Because the rotating platform of the material handling machine needs to accommodate many devices and facilities, the fuel tanks are typically small in size and have limited fuel capacity due to space constraints. This results in frequent refueling operations, increasing the workload for operators. Furthermore, the high fuel filler neck poses a safety risk to operators. Utility Model Content

[0004] The purpose of this invention is to provide a material handling machine with a refueling function to solve the problem that the current material handling machine requires frequent refueling, which leads to high labor intensity for operators.

[0005] The technical solution of this utility model of a material handling machine with oil replenishment function is as follows:

[0006] A material handling machine with a refueling function includes a frame and a rotary platform mounted on the frame. The rotary platform can rotate relative to the frame. A material handling arm mounting seat, an engine, and a fuel tank for the engine are arranged on the rotary platform. The fuel tank on the rotary platform is the main fuel tank. An auxiliary fuel tank for storing fuel is provided on the frame. A refueling pipeline is provided between the auxiliary fuel tank and the main fuel tank. The refueling pipeline is used to replenish the fuel in the auxiliary fuel tank to the main fuel tank.

[0007] Beneficial effects: This utility model improves upon existing material handling machines by addressing the limited space on the rotating platform of the material handling machine, which limits the capacity of the fuel tank. By incorporating the machine's structure and utilizing the larger space on the frame to install an auxiliary fuel tank, the main fuel tank on the rotating platform serves as the primary fuel tank. When the main fuel tank is low, the auxiliary tank can replenish fuel to the main tank via a fuel supply line, extending engine operating time. Only when both the main and auxiliary tanks are empty can refueling be performed, reducing the frequency of refueling operations, thus lowering the workload for operators and reducing the risks associated with refueling.

[0008] Furthermore, the frame has an inner cavity including an oil reservoir, and the portion of the frame that surrounds the oil reservoir forms an auxiliary oil tank so that the auxiliary oil tank is integrated onto the frame.

[0009] Furthermore, the oil storage chamber is equipped with a partition, and the partition has a connecting port that connects the spaces on both sides.

[0010] Furthermore, the frame is a gantry structure, which includes two spaced-apart columns on both sides and a crossbeam connected to the top of the columns on both sides. The rotary platform is rotatably mounted on the crossbeam, and the oil storage chamber is located inside the crossbeam.

[0011] Furthermore, the frame includes a crossbeam, on which a slewing bearing is provided for the slewing platform to be rotatably mounted. An oil storage chamber is disposed inside the crossbeam, and an end cavity is provided inside the crossbeam. The oil storage chamber is located on the side of the end cavity near the slewing bearing.

[0012] Furthermore, a central cavity is provided in the middle of the crossbeam, and a central mounting seat is provided at the upper opening of the central cavity. A slewing bearing and a central slewing joint are installed on the central mounting seat. The slewing bearing is used for the slewing platform to rotate. The central slewing joint is coaxially arranged with the slewing bearing. The oil replenishment pipeline includes a pipeline located on the slewing platform and connected to the main oil tank, and a pipeline located on the frame and connected to the auxiliary oil tank. The oil replenishment pipeline also includes a fuel flow channel provided in the central slewing joint so that the pipeline of the oil replenishment pipeline located on the slewing platform is connected to the pipeline located on the frame through the central slewing joint. The pipeline of the oil replenishment pipeline located on the frame extends into the central cavity.

[0013] Furthermore, the frame is provided with a central mounting base, on which a slewing bearing and a central slewing joint are mounted. The slewing bearing is used for the slewing platform to rotate. The central slewing joint is coaxially arranged with the slewing bearing. The oil replenishment line includes a fuel flow channel provided in the central slewing joint so that the oil replenishment line located on the slewing platform is connected to the line located on the frame.

[0014] Furthermore, the frame is a gantry structure, which includes two spaced-apart columns on both sides and a crossbeam connected to the top of the columns on both sides. The rotating platform is rotatably mounted on the crossbeam, and the auxiliary oil tank is located on the crossbeam.

[0015] Furthermore, a walkway is provided on the crossbeam next to the auxiliary oil tank, and a ladder is fixed on the walkway for operators to climb.

[0016] Furthermore, an oil pump is installed on the oil replenishment line, and the oil pump is mounted on the rotary platform. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an embodiment of the material handling machine with oil replenishment function of this utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of the chassis of the material handling machine with oil replenishment function;

[0019] Figure 3 for Figure 2 A structural diagram of the chassis beams without the top plate;

[0020] Figure 4 for Figure 3 Front view of the structure shown;

[0021] Figure 5 for Figure 3 Top view of the structure shown;

[0022] Figure 6 for Figure 3 Left view of the structure shown;

[0023] Figure 7 for Figure 3 A cross-sectional schematic diagram of the structure shown.

[0024] In the diagram: 1. Frame; 101. Column; 102. Crossbeam; 1020. End cavity; 1021. Base plate; 1022. Side plate; 1023. Center mounting seat; 1024. Center cavity; 2. Rotary platform; 3. Engine; 4. Main oil tank; 41. Liquid level sensor; 5. Grab arm mounting seat; 6. Cab; 7. Walking frame; 8. Track; 9. Lower walkway; 10. Ladder; 11. Auxiliary oil tank; 111. Filler cap; 112. Partition plate; 113. Connecting port; 114. Scale; 115. Oil storage chamber; 12. Oil pump; 13. Slewing bearing; 14. Central slewing joint; 15. Travel drive oil circuit hard pipe; 16. Auxiliary oil tank connecting pipe. Detailed Implementation

[0025] The basic concept of this utility model of a material grabber with refueling function is to address the situation where the space on the rotating platform of the material grabber is limited, resulting in a limited fuel tank capacity on the rotating platform. Combining the structure of the material grabber, a secondary fuel tank is set up using the larger arrangement space on the frame, and the fuel tank on the rotating platform serves as the main fuel tank. The secondary fuel tank is used to refuel the main fuel tank, which can reduce the frequency of fuel refueling operations.

[0026] The technical solution of this utility model will be specifically described below with reference to the embodiments.

[0027] An embodiment of the material handling machine with oil replenishment function of this utility model:

[0028] like Figure 1 , Figure 2 As shown, the material handling machine with oil replenishment function includes a chassis, a rotary platform 2, and equipment and facilities mounted on the rotary platform 2. The chassis includes a frame 1 and a traveling mechanism. The traveling mechanism includes a traveling frame 7 and tracks 8 mounted on the traveling frame 7. In this embodiment, the material handling machine is a mobile material handling machine, which can move via the tracks 8. The rotary platform 2 is mounted on the frame 1, and the frame 1 is provided with a slewing bearing 13 for mounting the rotary platform 2. The rotary platform 2 can rotate relative to the frame 1. The rotary platform 2 is equipped with a cab 6, a material handling arm mounting seat 5, an engine 3, a hydraulic pump station, a cooling system, a fuel tank, a counterweight, pipelines, electrical circuits, a walkway, and other equipment and facilities. The material handling arm mounting seat 5 is used to mount the material handling arm, which is not shown in the figure. The material handling arm is hydraulically driven to perform the action of grabbing materials. The traveling mechanism is also hydraulically driven. When the engine 3 is running, it can drive the hydraulic pump station to work. The hydraulic pump station drives the rotary platform 2, the traveling mechanism, the material handling arm, and other moving parts to perform the action through different hydraulic pipelines.

[0029] The hydraulic pump station on the rotary platform 2 drives the traveling mechanism at the bottom of the frame 1 to move the material grabber. Correspondingly, the traveling drive oil circuit connected to the hydraulic pump station and the traveling mechanism includes hydraulic lines on the rotary platform 2 and hydraulic lines on the frame 1. The hydraulic lines on the frame 1 include rigid traveling drive oil lines 15 fixed to the side of the frame 1. The lines are segmented, and flexible hoses connect the different segments. To connect the hydraulic lines on the rotary platform 2 and the frame 1, a central rotary joint 14 is used at the rotary connection point to allow hydraulic oil circuit conduction and rotation of the rotary platform 2 relative to the frame 1. The installation of the rotary platform 2 on the frame 1 via the slewing bearing 13 and the application of the central rotary joint 14 are known technologies in the art, and their principles will not be elaborated further. Different oil passages of the central rotary joint 14 can be used to achieve the conduction of different oil circuits.

[0030] A fuel tank for the engine 3 is located on the slewing platform 2. Due to space constraints on the slewing platform 2, the fuel tank capacity is relatively small. To reduce the frequency of refueling, an auxiliary fuel tank 11 is installed on the frame 1. The fuel tank on the slewing platform 2 serves as the main fuel tank 4, directly supplying fuel to the engine 3. A replenishment line connects the auxiliary fuel tank 11 and the main fuel tank 4, used to replenish fuel from the auxiliary fuel tank 11 to the main fuel tank 4. This allows for the use of the relatively ample space on the frame 1 to house the larger-capacity auxiliary fuel tank 11. When the main fuel tank 4 is low on fuel, the replenishment line allows the auxiliary fuel tank 11 to replenish fuel, extending the engine 3's operating time. Refueling is only performed when both the main fuel tank 4 and the auxiliary fuel tank 11 are empty, reducing the frequency of refueling operations, lowering the workload for operators, and minimizing the risks associated with refueling.

[0031] Combination Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 Based on the structure of the frame 1 as a box-shaped component with an internal cavity, in this embodiment, the internal cavity of the frame 1 forms an oil storage chamber 115. The portion of the frame 1 that forms the oil storage chamber 115 constitutes an auxiliary fuel tank 11 capable of storing fuel, thereby integrating the auxiliary fuel tank 11 onto the frame 1. The internal cavity of the frame 1 includes the oil storage chamber 115, which constitutes the internal cavity of the auxiliary fuel tank 11. This integrated structure saves costs and avoids the auxiliary fuel tank 11 occupying additional space. In other embodiments, an external auxiliary fuel tank can also be used, which is manufactured separately and fixed to the outside of the frame.

[0032] A partition 112 is provided inside the oil storage chamber 115. The partition 112 has a connecting port 113 that connects the spaces on both sides. The partition 112 is fixedly connected to the inner wall of the oil storage chamber 115. The partition 112 can enhance the strength of the oil storage chamber 115, while the connecting port 113 keeps the oil in the oil storage chamber 115 interconnected. This prevents the structural strength of the frame 1 from being affected by the large volume of the oil storage chamber 115. In other embodiments, the partition may be omitted as needed.

[0033] The frame 1 is a gantry structure, comprising left and right side columns 101 spaced apart and crossbeams 102 connected to the top of the side columns 101. The bottom of the columns 101 is fixed to the traveling frame 7 of the traveling mechanism. The columns 101 are vertically arranged, while the crossbeams 102 are horizontally arranged. The bottom of each side column 101 is connected to a traveling mechanism, and the rotating platform 2 is rotatably mounted on the crossbeams 102. This gantry structure results in a high ground clearance for the crossbeams 102, allowing material containers to pass between the side columns 101. In other embodiments, the frame may not be a gantry structure; for example, it may only have a main beam connecting the two traveling mechanisms, with the auxiliary oil tank arranged on the main beam.

[0034] In this embodiment, the auxiliary fuel tank 11 is integrated onto the crossbeam 102. Both the crossbeam 102 and the column 101 are box-shaped components. The inner cavity of the frame 1 includes the inner cavity of the crossbeam 102 and the inner cavity of the column 101. The inner cavity of the crossbeam 102 forms an oil storage chamber 115, which is located within the crossbeam 102. The crossbeam 102 is relatively close to the rotary platform 2, which can shorten the pipeline length and reduce the pressure required for pumping fuel through the replenishment pipeline. In other embodiments, the oil storage chamber can also be located within the column, thus placing the auxiliary fuel tank on the column.

[0035] The crossbeam 102 includes a top plate, a bottom plate 1021, and side plates 1022 on both the front and rear sides. The top plate, bottom plate 1021, and side plates 1022 form the inner cavity of the crossbeam 102. To ensure structural strength, the crossbeam 102 is provided with longitudinally and transversely connected reinforcing plates to form a skeleton. The slewing bearing 13 is located at the top of the crossbeam 102 and in the middle of the crossbeam 102 in the left-right direction. The end cavity 1020 is provided at the end of the crossbeam 102 in the left-right direction. The oil storage cavity 115 is located on the side of the end cavity 1020 near the slewing bearing 13. The oil storage cavity 115 is a closed cavity and is separated from the end cavity 1020 by corresponding reinforcing plates. The oil storage cavity 115 is formed by using a part of the inner cavity of the crossbeam 102 near the slewing bearing 13. This satisfies the capacity of the auxiliary oil tank 11 while being close to the slewing connection, which can save pipeline length and facilitate pipeline connection using the central slewing joint 14, making the layout convenient. In other embodiments, the end cavity can also be used to form a closed oil storage cavity.

[0036] In this embodiment, oil storage chambers 115 are provided on both the left and right sides of the slewing bearing 13 within the crossbeam 102, and are arranged symmetrically. Correspondingly, end cavities 1020 are provided at both ends of the crossbeam 102. The sum of the volumes of the oil storage chambers 115 on both sides reaches 2000L, making the volume of the auxiliary oil tank 11 much larger than that of the main oil tank 4, which can significantly shorten the refueling frequency.

[0037] A central mounting base 1023 is provided in the middle of the crossbeam 102 of the frame 1. A slewing bearing 13 and a central slewing joint 14 are mounted on the central mounting base 1023, and the central slewing joint 14 is coaxially arranged with the slewing bearing 13. The oil replenishment pipeline includes a pipeline located on the slewing platform 2 and connected to the main oil tank 4, and a pipeline located on the frame 1 and connected to the auxiliary oil tank 11. The oil replenishment pipeline also includes a fuel flow channel provided in the central slewing joint 14 to connect the pipeline on the slewing platform 2 with the pipeline on the frame 1, enabling the auxiliary oil tank 11 to replenish fuel to the main oil tank 4. The central slewing joint 14 is a multi-way slewing joint, which can be selected according to the number of oil channels. In addition to meeting the hydraulic oil circuit requirements, it also meets the fuel delivery requirements. Using the central slewing joint 14 to connect the pipeline on the slewing platform 2 with the pipeline on the frame 1 results in a simple structure and reliable operation. In other embodiments, the oil replenishment pipeline can be omitted from the central rotary joint. The oil replenishment pipeline located on the rotary platform can be connected to the pipeline located on the frame via a flexible hose, allowing the rotary platform to swing relative to the frame within a certain range.

[0038] A central cavity 1024 is provided in the middle of the crossbeam 102. A central mounting seat 1023 is provided at the upper opening of the central cavity 1024. Pipelines can be arranged using the central cavity 1024. A clearance opening is provided on the side wall of the central cavity 1024 in the front-rear direction. The hydraulic pipeline connected to the lower end of the central rotary joint 14 can be arranged in the central cavity 1024. The hydraulic pipeline can be connected to the external travel drive oil circuit hard pipe 15 through the clearance opening. The oil replenishment pipeline located on the frame 1 extends into the central cavity 1024. This pipeline includes an auxiliary oil tank connecting pipe 16, which passes through the left-right sidewalls of the central cavity 1024 and connects to the corresponding oil storage chamber 115. Two auxiliary oil tank connecting pipes 16 are provided, one on the left and one on the right, to connect to the auxiliary oil tanks 11 on either side. The auxiliary oil tank connecting pipe 16 is located in the middle of the crossbeam 102 in the front-rear direction. One end of the auxiliary oil tank connecting pipe 16 extends into the central cavity 1024, and this end is connected to the central rotary joint 14 via a flexible hose. The central cavity 1024 facilitates pipeline arrangement. In other embodiments, the central cavity may be omitted, and a radially extending clearance channel may be provided on the central mounting base to allow for pipeline clearance. The hydraulic pipeline and the oil replenishment pipeline can then be arranged using the external space of the crossbeam.

[0039] An oil pump 12 is installed on the oil replenishment line and mounted on the rotary platform 2 for easy driving using the motor and battery on the rotary platform 2. The oil pump 12 is driven by the motor, and a switch for controlling the operation of the motor is located in the operator's cab 6. The motor is powered by the existing 24V battery of the material handling machine, saving costs. In other embodiments, the oil pump and the motor driving the oil pump can be mounted on the frame, in which case a separate battery can be configured.

[0040] A walkway is provided on the crossbeam 102. The walkway on the crossbeam 102 is the lower walkway 9, and the walkway provided on the rotating platform 2 is the upper walkway. The lower walkway 9 extends to the side of the auxiliary fuel tank 11. A ladder 10 for operators to climb is fixed on the lower walkway 9. The auxiliary fuel tank 11 is provided with a refueling port and a refueling cap 111. By opening the refueling cap 111, fuel can be added to the auxiliary fuel tank 11. The lower walkway 9 facilitates refueling operations for operators, and operators can also climb to the upper walkway via the lower walkway 9. In other embodiments, the lower walkway may not be provided to the side of the auxiliary fuel tank, and a refueling truck in conjunction with a ladder can be used to lift operators to refuel.

[0041] The auxiliary fuel tank 11 has a scale 114 on its side wall to display the fuel level, allowing operators to easily observe the remaining fuel. The main fuel tank 4 is equipped with a level sensor 41. The remaining fuel level is displayed on the instrument panel inside the cab 6. When the level sensor 41 shows 20% remaining fuel, the instrument panel sends an electrical signal, which connects the power supply to the 24V motor of the fuel pump 12. At this time, the fuel pump 12 starts working, drawing fuel from the auxiliary fuel tank 11, passing it through the pump 12, and entering the main fuel tank 4. The float of the level sensor 41 rises, and the fuel level displayed on the instrument panel inside the cab 6 increases. When the level sensor 41 shows 80% remaining fuel, the electrical signal from the instrument panel is disconnected, and the fuel pump 12 stops working until it restarts when the fuel level is low.

[0042] When the main fuel tank 4 is low on fuel, fuel can be replenished using the auxiliary fuel tank 11, allowing for refueling of the main fuel tank 4 without shutting down the engine. Since the space on the frame 1 is ample, the auxiliary fuel tank 11 has a much larger capacity than the main fuel tank 4. When the fuel in the auxiliary fuel tank 11 is low, the operator can then refuel, reducing the frequency of refueling, significantly reducing the driver's workload, and also lowering the risk of accidental injury to the operator during refueling due to the high height of the refueling nozzle.

[0043] Finally, it should be noted that the above description is only a preferred embodiment of this utility model and is not intended to limit this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still make modifications to the technical solutions described in the foregoing embodiments without creative effort, or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A grab with oil supplementing function, comprising a frame and a rotary platform installed on the frame, the rotary platform being rotatable relative to the frame, the rotary platform being provided with a grab arm mounting seat, an engine and an oil tank matched with the engine, characterized in that, The fuel tank on the rotary platform is a main fuel tank, a sub-fuel tank for storing fuel is arranged on the rack, and a fuel supplement pipeline is arranged between the sub-fuel tank and the main fuel tank, and the fuel supplement pipeline is used for supplementing the fuel in the sub-fuel tank into the main fuel tank.

2. The grabber with oil supplementing function according to claim 1, characterized in that, The rack has an inner cavity, and the inner cavity includes an oil storage cavity, and the part of the rack for enclosing the oil storage cavity forms the sub-fuel tank so that the sub-fuel tank is integrated on the rack.

3. The grabber with oil supplementing function according to claim 2, characterized in that, A partition plate is arranged in the oil storage cavity, and the partition plate is provided with a communication port for communicating the spaces on both sides of the partition plate.

4. The grabber with oil supplementing function according to claim 2 or 3, characterized in that, The rack is a portal frame structure, and the rack includes two side columns arranged at intervals and a cross beam connected to the top of the two side columns, the rotary platform is rotatably mounted on the cross beam, and the oil storage cavity is arranged in the cross beam.

5. The grabber with oil supplementing function according to claim 2 or 3, characterized in that, The rack includes a cross beam, the cross beam is provided with a rotary support for rotatably mounting the rotary platform, the oil storage cavity is arranged in the cross beam, and the cross beam is provided with an end cavity, and the oil storage cavity is located on the side of the end cavity close to the rotary support.

6. The grabber with oil supplementing function according to claim 5, characterized in that, A central cavity is arranged in the middle of the cross beam, a central mounting seat is arranged at the upper opening of the central cavity, the rotary support and a central rotary joint are mounted on the central mounting seat, the rotary support is used for rotatably mounting the rotary platform, the central rotary joint is coaxially arranged with the rotary support, the fuel supplement pipeline includes a pipeline connected to the main fuel tank and located on the rotary platform and a pipeline connected to the sub-fuel tank and located on the rack, the fuel supplement pipeline further includes a fuel flow channel arranged in the central rotary joint so that the pipeline of the fuel supplement pipeline located on the rotary platform is communicated with the pipeline of the fuel supplement pipeline located on the rack through the central rotary joint, and the pipeline of the fuel supplement pipeline located on the rack extends into the central cavity.

7. The grabber with oil supplementing function according to claim 1 or 2 or 3, characterized in that, The rack is provided with a central mounting seat, the central mounting seat is mounted with a rotary support and a central rotary joint, the rotary support is used for rotatably mounting the rotary platform, the central rotary joint is coaxially arranged with the rotary support, and the fuel supplement pipeline includes a fuel flow channel arranged in the central rotary joint so that the pipeline of the fuel supplement pipeline located on the rotary platform is communicated with the pipeline of the fuel supplement pipeline located on the rack.

8. The grabber with oil supplementing function according to claim 1 or 2 or 3, characterized in that, The rack is a portal frame structure, and the rack includes two side columns arranged at intervals and a cross beam connected to the top of the two side columns, the rotary platform is rotatably mounted on the cross beam, and the sub-fuel tank is arranged on the cross beam.

9. The grabber with oil supplementing function according to claim 8, characterized in that, A walkway is arranged on the cross beam beside the sub-fuel tank, and a ladder for the operator to climb is fixed on the walkway.

10. The grabber with oil supplementing function according to claim 1 or 2 or 3, characterized in that, An oil pump is arranged on the fuel supplement pipeline, and the oil pump is mounted on the rotary platform.

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