Turnover container brim of off-highway dumper

Abstract

The utility model discloses a turnover container brim of an off-highway dumper, which relates to the technical field of engineering machinery and comprises a container body mounted on a frame and a brim hinged to the container body, and a turnover mechanism is hinged to the brim and the container body. The turnover mechanism drives the brim to turn over so as to achieve battery replacement, the oblique beam of the turnover mechanism serves as a support of the brim, meanwhile, the lifting components are installed in the oblique beam, space is saved, the oblique beam is reserved so that the brim can be more stable and reliable in the using process, and the lifting components are driven through a ball screw, a ball nut and a driver in a matched mode. Potential safety hazards caused by insufficient supporting force due to poor sealing performance of the oil cylinder used for a long time in the prior art are prevented, and the oil cylinder is more stable.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a flippable cargo box brim of an off-highway dump truck. Background Art

[0002] Off-road (mining) dump trucks are heavy-duty dump trucks used in open-pit mines to complete rock and earth stripping and ore transportation tasks. They are characterized by short travel distances and heavy loads. They are usually loaded with large electric shovels or hydraulic shovels and travel back and forth between the mining site and the unloading site. As people's requirements for environmental protection become higher and higher, off-road dump trucks are also driven by electricity.

[0003] Existing battery-swappable off-road dump trucks need to lift the cargo box when performing battery swap operations in mining areas, which takes up a large space. Therefore, the brim of the cargo box needs to be flipped over and the power supply under the brim needs to be replaced. This solves the problem in the prior art that battery swapping requires lifting the cargo box, which takes up a large space. However, after long-term use, the sealing performance of the oil cylinder cannot be guaranteed when using the oil cylinder, resulting in the inability to ensure safety during the battery swap operation. Utility Model Content

[0004] The purpose of the utility model is to provide a flippable cargo box brim for an off-road dump truck, so as to solve the problems in the prior art that the existing off-road dump trucks are inconvenient when changing batteries and the safety cannot be guaranteed.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a flippable cargo box brim of an off-road dump truck, comprising a cargo box body mounted on a vehicle frame and a brim hinged on the cargo box body, wherein the brim is hinged to the cargo box body with a flipping mechanism;

[0006] Wherein, the flip mechanism comprises an inclined beam hinged to the brim, a ball nut hinged to the inclined beam, a ball screw matched to the ball nut, and a driver installed on the ball screw;

[0007] The back of the inclined beam provides a hollow slot that extends out when the ball screw rotates, and the driver is hinged to the cargo box body. The driver drives the ball screw and the ball nut to be threadedly connected to drive the brim hinged to the inclined beam to flip around the hinge of the cargo box body.

[0008] Preferably, a secondary support beam is fixed to the cargo box body below the brim, for supporting and limiting the brim after it falls.

[0009] Preferably, an upper support is hinged to the inclined beam, and the upper support is fixed to the brim. When rising, the inclined beam rotates around the hinge point of the ball nut, and the back abuts against the back plate of the upper support to limit the rotation between the upper support and the inclined beam.

[0010] Preferably, a lower support is hinged to the driver, and the lower support is fixed to the cargo box body.

[0011] Preferably, the ball nut is hinged to the inclined beam near the hollow grooved area of the back.

[0012] Preferably, the inclined beam is in a U-shaped square tube shape.

[0013] Preferably, two sets of the turning mechanisms are symmetrically arranged left and right.

[0014] Preferably, the driver adopts a self-locking motor or a hydraulic motor.

[0015] Preferably, two sets of the auxiliary support beams are symmetrically arranged left and right.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] The present utility model drives the brim to turn through the turning mechanism so as to realize battery replacement. The inclined beam of the turning mechanism serves as the support of the brim. At the same time, the lifting components are all installed inside the inclined beam, saving space while retaining the inclined beam, making the brim more stable and reliable during use. The lifting components are driven by a ball screw and a ball nut in cooperation with a driver, preventing the safety hazard caused by insufficient supporting force due to poor sealing performance of the oil cylinder during long-term use in the prior art, and being more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the structure of the turning mechanism of the present utility model;

[0020] Figure 3 is a schematic diagram of the brim rising of the present utility model.

[0021] In the figure: 1, vehicle frame; 2, brim; 3, turning mechanism; 301, upper support; 302, inclined beam; 303, ball screw; 304, ball nut; 305, driver; 306, lower support; 4, auxiliary support beam; 5, cargo box body. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1 - 3 , as Figure 1 shown, the present invention provides a reversible cargo box brim for a non-road dump truck, which includes a cargo box body 5 installed on a vehicle frame 1 and a brim 2 hinged to the cargo box body 5. A turning mechanism 3 is hinged between the brim 2 and the cargo box body 5;

[0024] Among them, the turning mechanism 3 includes a diagonal beam 302 hinged to the brim 2, a ball nut 304 hinged to the diagonal beam 302, a ball screw 303 adapted to the ball nut 304, and a driver 305 installed on the ball screw 303;

[0025] A hollow slot for the ball screw 303 to extend when rotating is provided on the back of the diagonal beam 302. The driver 305 is hinged to the cargo box body 5, and the ball screw 303 is driven by the driver 305 to be threadedly connected with the ball nut 304, driving the brim 2 hinged to the diagonal beam 302 to turn around the hinge point of the cargo box body 5.

[0026] Embodiment 1

[0027] A reversible cargo box brim for a non-road dump truck, which includes a cargo box body 5 installed on a vehicle frame 1 and a brim 2 hinged to the cargo box body 5. A turning mechanism 3 is hinged between the brim 2 and the cargo box body 5;

[0028] Among them, as Figure 2 shown, the turning mechanism 3 includes a diagonal beam 302 in a U-shaped square tube shape, a ball nut 304 hinged to the diagonal beam 302, a ball screw 303 adapted to the ball nut 304, and a driver 305 installed on the ball screw 303;

[0029] An upper support 301 is hinged to the diagonal beam 302 and the upper support 301 is fixed to the brim 2. When rising, the diagonal beam 302 turns around the hinge point of the ball nut 304 and the back abuts against the back plate of the upper support 301 to limit the rotation between the upper support 301 and the diagonal beam 302.

[0030] The ball nut 304 is hinged to the diagonal beam 302 near the hollow slot on the back.

[0031] A lower support 306 is hinged to the driver 305 and the lower support 306 is fixed to the cargo box body 5.

[0032] A hollow slot is provided on the back of the inclined beam 302 for the ball screw 303 to extend when rotating. The ball screw 303 is driven by the driver 305 to be threadedly connected with the ball nut 304, driving the brim 2 hinged to the inclined beam 302 to flip around the hinge of the cargo box body 5.

[0033] A secondary support beam 4 is fixed below the brim 2 of the cargo box body 5 for supporting and limiting the brim 2 after it falls.

[0034] As a further improvement: Two sets of secondary support beams 4 are arranged symmetrically left and right.

[0035] In this embodiment, the driver 305 uses a self-locking motor or a hydraulic motor.

[0036] It should be noted that for the selection of the self-locking motor or the hydraulic motor for the driver 305, those skilled in the art can make a suitable selection according to actual needs. Among them, when a hydraulic motor is selected, a self-locking mechanism needs to be installed in the hydraulic system or the supply and return oil circuits to prevent the hydraulic motor from failing to lock when the oil supply stops, resulting in rotation and causing the brim 2 to fall.

[0037] When flipping the brim 2, the operator issues an instruction through the operation panel. After receiving the instruction, the controller starts the driver 305 to drive the ball screw 303 to rotate. Since the ball screw 303 is threadedly connected with the ball nut 304, when the ball screw 303 rotates, the inclined beam 302 installed on the ball nut 304 jacks up the brim 2, and the brim 2 flips around the hinge with the cargo box body 5.

[0038] When the inclined beam 302 rises, it abuts against the inclined beam 302 through the upper support 301 to limit the maximum angle during the downward swing, ensuring that the lower end of the inclined beam 302 can reach the lower support 306 when it falls. During the rising process, the ball nut 304 is hinged to the inclined beam 302. Therefore, there is a degree of freedom between the ball screw 303 and the inclined beam 302. When the upper support 301 abuts against the inclined beam 302, the ball screw 303 exerts a supporting force on the inclined beam 302. Since the upper end of the inclined beam 302 is limited, the inclined beam 302 flips around the hinge with the ball nut 304, and the included angle between the inclined beam 302 and the ball screw 303 becomes smaller. The ball screw 303 is affected and passes through the hollow slot opened on the back of the inclined beam 302.

[0039] Embodiment 2

[0040] A flip-up cargo box brim for a non-road dump truck includes a cargo box body 5 installed on the vehicle frame 1 and a brim 2 hinged to the cargo box body 5. There are two sets of flip mechanisms 3 arranged symmetrically left and right for the hinge between the brim 2 and the cargo box body 5;

[0041] Among them, as Figure 2As shown in the figure, the flipping mechanism 3 includes an inclined beam 302 in the shape of a U-shaped square tube, a ball nut 304 hinged on the inclined beam 302, a ball screw 303 adapted to the ball nut 304, and a driver 305 mounted on the ball screw 303;

[0042] An upper support 301 is hinged on the inclined beam 302 and the upper support 301 is fixed on the brim 2. When rising, the inclined beam 302 rotates around the hinge of the ball nut 304 and its back abuts against the back plate of the upper support 301 to limit the rotation between the upper support 301 and the inclined beam 302.

[0043] The ball nut 304 is hinged on the inclined beam 302 near the hollowed-out slot at the back.

[0044] A lower support 306 is hinged on the driver 305 and the lower support 306 is fixed on the cargo box body 5.

[0045] A hollowed-out slot for the ball screw 303 to extend when rotating is provided on the back of the inclined beam 302. The driver 305 drives the ball screw 303 to be threadedly connected with the ball nut 304 to drive the brim 2 hinged on the inclined beam 302 to rotate around the hinge of the cargo box body 5.

[0046] A secondary support beam 4 is fixed below the brim 2 on the cargo box body 5 for supporting and limiting after the brim 2 falls.

[0047] As a further improvement: Two groups of secondary support beams 4 are arranged symmetrically on the left and right.

[0048] In this embodiment, the driver 305 adopts a self-locking motor or a hydraulic motor.

[0049] It should be noted that for the selection of the self-locking motor or the hydraulic motor for the driver 305, those skilled in the art can make a suitable choice according to actual needs. Among them, when a hydraulic motor is selected, a self-locking mechanism needs to be installed in the hydraulic system or the supply and return oil circuits to prevent the hydraulic motor from failing to lock and rotating when the oil supply stops, resulting in the falling of the brim 2.

[0050] As Figure 3 As shown in the figure, when flipping the brim 2, the operator issues an instruction through the operation panel. After receiving the instruction, the controller simultaneously starts two groups of drivers 305 to drive the ball screw 303 to rotate. Since the ball screw 303 is threadedly connected with the ball nut 304, when the ball screw 303 rotates, the inclined beam 302 mounted on the ball nut 304 jacks up the brim 2, and the brim 2 rotates around the hinge with the cargo box body 5.

[0051] When the inclined beam 302 rises, the upper support 301 abuts against the inclined beam 302 to limit the maximum angle during the downward swing, ensuring that the lower end of the inclined beam 302 can reach the lower support 306 when it falls. During the rising process, the ball nut 304 is hinged to the inclined beam 302. Therefore, there is a degree of freedom between the ball screw 303 and the inclined beam 302. When the upper support 301 abuts against the inclined beam 302, the ball screw 303 exerts a supporting force on the inclined beam 302. Since the upper end of the inclined beam 302 is limited, the inclined beam 302 rotates around the hinge point with the ball nut 304, and the included angle between the inclined beam 302 and the ball screw 303 becomes smaller. The ball screw 303 is affected and passes through the hollow slot opened on the back of the inclined beam 302.

[0052] Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An overturnable cargo box brim for a non-road dump truck, comprising a cargo box body (5) installed on a vehicle frame (1) and a brim (2) hinged on the cargo box body (5), characterized in that, The brim (2) is hinged to the cargo box body (5) by a turning mechanism (3); Among them, the turning mechanism (3) includes a diagonal beam (302) hinged to the brim (2), a ball nut (304) hinged on the diagonal beam (302), a ball screw (303) adapted to the ball nut (304), and a driver (305) installed on the ball screw (303); A hollow slot for the ball screw (303) to extend when rotating is provided on the back of the diagonal beam (302). The driver (305) is hinged to the cargo box body (5). By driving the ball screw (303) to be threadedly connected with the ball nut (304) by the driver (305), the brim (2) hinged to the diagonal beam (302) is driven to turn around the hinge of the cargo box body (5).

2. The non-road dump truck's reversible cargo box brim according to claim 1, characterized in that: A secondary support beam (4) is fixed below the brim (2) of the cargo box body (5) for supporting and limiting the brim (2) after it falls down.

3. The flip-up brim of the off-road dump truck cargo box according to claim 2, characterized in that: An upper support (301) is hinged on the diagonal beam (302) and the upper support (301) is fixed on the brim (2). When rising, the diagonal beam (302) turns around the hinge of the ball nut (304) and the back abuts against the back plate of the upper support (301) to limit the rotation between the upper support (301) and the diagonal beam (302).

4. The non-road dump truck's reversible cargo box brim according to claim 3, characterized in that: A lower support (306) is hinged on the driver (305) and the lower support (306) is fixed on the cargo box body (5).

5. The non-road dump truck's reversible cargo box brim according to claim 4, characterized in that: The ball nut (304) is hinged to the diagonal beam (302) near the hollow slot on the back.

6. The non-road dump truck's reversible cargo box brim according to claim 5, characterized in that: The diagonal beam (302) is in a U-shaped square tube.

7. The non-road dump truck's reversible cargo box brim according to any one of claims 1-6, characterized in that: Two sets of the turning mechanisms (3) are symmetrically arranged left and right.

8. The non-road dump truck's reversible cargo box brim according to claim 7, characterized in that: The driver (305) uses a self-locking motor or a hydraulic motor.

9. The non-road dump truck's reversible cargo box brim according to any one of claims 1-6, characterized in that: The driver (305) uses a self-locking motor or a hydraulic motor.

10. The non-road dump truck's reversible cargo box brim according to claim 2, characterized in that: Two sets of the secondary support beams (4) are symmetrically arranged left and right.

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