Off-highway dump truck having tippable dump body brim

Abstract

An off-highway dump truck having a tippable dump body brim, relating to the technical field of engineering machinery. The dump truck comprises a dump body (5) mounted on a frame (1), and a brim (2) hinged to the dump body (5), wherein a tipping mechanism (3) is hinged to the brim (2) and the dump body (5). The tipping mechanism (3) drives the brim (2) to tip, so as to realize battery swapping, and an inclined beam (302) of the tipping mechanism (3) serves as a support for the brim (2). In addition, lifting components are all mounted in the inclined beam (302), saving space while retaining the inclined beam, so that the brim is more stable and reliable during use; and the lifting components are driven by means of a ball screw and a ball nut cooperating with a driver, thus preventing potential safety hazards of insufficient support force caused by poor sealing performance of an oil cylinder after long-term use, thereby achieving a more stable performance.

Description

Off-highway dump truck turnable cargo box brim TECHNICAL FIELD

[0001] The utility model relates to engineering machinery technical field, concretely is a kind of off-highway dump truck turnable cargo box brim. BACKGROUND

[0002] Off-highway (mining) dump truck is a kind of heavy-duty dump truck used in open-pit mine to complete rock earthwork stripping and ore transportation task, its working characteristics are short haul, heavy load, commonly used large electric shovel or hydraulic shovel is loaded, and it is back and forth between mining point and ore unloading point. With people's increasing demand for environmental protection, off-highway dump truck is also driven by electric mode.

[0003] The existing off-highway dump truck with replaceable battery needs to lift the cargo box when replacing battery in mining area, which occupies a large space, so the brim of the cargo box needs to be turned over, and the power supply under the brim needs to be replaced, to solve the problem that the existing technology needs to lift the cargo box to replace the battery, which occupies a large space. However, the sealing performance of the oil cylinder cannot be guaranteed after a long time of use, so the safety cannot be guaranteed during battery replacement operation.

[0004] UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of off-highway dump truck turnable cargo box brim to solve the problem that the existing off-highway dump truck is inconvenient and safety cannot be guaranteed when replacing battery as described in the background.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a kind of off-highway dump truck turnable cargo box brim, including cargo box body installed on frame and the brim articulated on the cargo box body, the brim is articulated with the cargo box body and has turnover mechanism;

[0007] Wherein, the turnover mechanism includes inclined beam articulated with the brim, ball nut articulated on the inclined beam, ball screw matched with the ball nut and driver installed on the ball screw;

[0008] The inclined beam back provides a hollow slot extended when the ball screw rotates, the driver is articulated with the cargo box body, and the driver drives the ball screw and the ball nut to threadedly connect the brim articulated with the inclined beam to turn over around the articulated place of the cargo box body.

[0009] Preferably, the cargo box body is fixed with a vice support beam below the brim, for supporting and limiting after the brim falls down.

[0010] Preferably, the upper support is hinged on the inclined beam and fixed on the hat brim, and the inclined beam is turned around the ball nut hinge and the back is limited by the back plate of the upper support to limit the rotation between the upper support and the inclined beam when rising.

[0011] Preferably, the lower support is hinged on the driver and fixed on the box body.

[0012] Preferably, the ball nut is hinged on the inclined beam near the hollowed groove of the back.

[0013] Preferably, the inclined beam is in U-shaped square tube shape.

[0014] Preferably, the turning mechanism is provided with two groups of left-right symmetry.

[0015] Preferably, the driver is a self-locking motor or a hydraulic motor.

[0016] Preferably, the vice support beam is provided with two groups of left-right symmetry.

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] The utility model discloses a turning mechanism drives the hat brim to turn over and realizes the power exchange, and the inclined beam of the turning mechanism supports the hat brim, and all the rising components are installed in the inclined beam, which saves the space and makes the hat brim more stable and reliable in use, and the ball screw, the ball nut and the driver are used to drive the rising components, so that the safety hidden danger caused by the insufficient supporting force due to the poor sealing performance of the oil cylinder in the prior art is prevented, and the utility model is more stable. BRIEF DESCRIPTION OF DRAWINGS

[0019] Fig. 1 is a whole structure schematic diagram of the utility model;

[0020] Fig. 2 is a turning mechanism structure schematic diagram of the utility model;

[0021] Fig. 3 is a hat brim rising schematic diagram of the utility model.

[0022] Fig. 1 is a whole structure schematic diagram of the utility model; DETAILED DESCRIPTION

[0023] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0024] Please refer to FIG. 1-3, as shown in FIG. 1, the utility model provides a non - highway dump truck can turn over the brim of the cargo box, including the cargo box body 5 installed on the frame 1 and the brim 2 hinged on the cargo box body 5, the brim 2 is hinged with the cargo box body 5 and has the turnover mechanism 3;

[0025] Wherein, the turnover mechanism 3 includes the inclined beam 302 hinged with the brim 2, the ball nut 304 hinged on the inclined beam 302, the ball screw 303 matched with the ball nut 304 and the driver 305 installed on the ball screw 303;

[0026] The inclined beam 302 provides a hollow slot extended when the ball screw 303 rotates, the driver 305 is hinged with the cargo box body 5, the inclined beam 302 is driven by the driver 305 to drive the ball screw 303 and the ball nut 304 to screw connection, and the brim 2 hinged with the cargo box body 5 is turned over around the hinge.

[0027] Embodiment one

[0028] A non - highway dump truck can turn over the brim of the cargo box, including the cargo box body 5 installed on the frame 1 and the brim 2 hinged on the cargo box body 5, the brim 2 is hinged with the cargo box body 5 and has the turnover mechanism 3;

[0029] Wherein, as shown in FIG. 2, the turnover mechanism 3 includes the inclined beam 302 in the shape of U-shaped square tube, the ball nut 304 hinged on the inclined beam 302, the ball screw 303 matched with the ball nut 304 and the driver 305 installed on the ball screw 303;

[0030] The inclined beam 302 is hinged with the upper support 301 and the upper support 301 is fixed on the brim 2, when rising, the inclined beam 302 is turned over around the hinge of the ball nut 304 and the back is limited to the rotation between the upper support 301 and the inclined beam 302 by abutting against the back plate of the upper support 301.

[0031] The ball nut 304 is hinged at the hollow slot close to the back of the inclined beam 302.

[0032] The driver 305 is hinged with the lower support 306 and the lower support 306 is fixed on the cargo box body 5.

[0033] The back of the inclined beam 302 provides a hollow groove that extends when the ball screw 303 rotates, and the ball screw 303 is driven by the driver 305 to rotate the ball nut 304 to drive the inclined beam 302 to rotate around the hinge of the box body 5.

[0034] The box body 5 is fixed below the hat brim 2 with a vice support beam 4 for supporting and limiting the hat brim 2 after falling.

[0035] As a further improvement: the vice support beam 4 is symmetrically arranged in two groups.

[0036] In this embodiment, the driver 305 adopts a self-locking motor or a hydraulic motor.

[0037] It should be noted that: for the driver 305, the self-locking motor or the hydraulic motor can be selected by the person skilled in the art according to the actual needs, and the self-locking mechanism needs to be installed in the hydraulic system or the oil supply and return path to prevent the hydraulic motor from rotating and causing the hat brim 2 to fall when the oil supply is stopped.

[0038] When the hat brim 2 is rotated, the operator issues an instruction through the operation panel, and 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, the inclined beam 302 installed on the ball nut 304 will lift the hat brim 2 upward, and the hat brim 2 will rotate around the hinge with the box body 5.

[0039] When the inclined beam 302 is lifted, the upper support 301 limits the maximum angle of the inclined beam 302 to ensure that the lower end of the inclined beam 302 can reach the lower support 306 when falling. During the lifting process, the ball nut 304 is hinged on the inclined beam 302, so the ball screw 303 and the inclined beam 302 have a degree of freedom. When the upper support 301 abuts against the inclined beam 302, the ball screw 303 applies a supporting force to the inclined beam 302. Since the upper end is limited, the inclined beam 302 rotates around the hinge with the ball nut 304, the angle between the inclined beam 302 and the ball screw 303 becomes smaller, and the ball screw 303 is affected to pass through the hollow groove in the back of the inclined beam 302.

[0040] Embodiment two

[0041] A non-highway dump truck rotatable box hat brim, comprising a box body 5 installed on a vehicle frame 1 and a hat brim 2 hinged on the box body 5, the hat brim 2 is hinged with the box body 5 with two groups of rotation mechanisms 3 arranged symmetrically left and right;

[0042] As shown in Fig. 2, the turnover mechanism 3 comprises a U-shaped square tube-shaped inclined beam 302, a ball nut 304 hinged on the inclined beam 302, a ball screw 303 matched with the ball nut 304, and a driver 305 installed on the ball screw 303.

[0043] The upper support 301 is hinged on the inclined beam 302 and fixed on the hat brim 2. When the hat brim 2 is lifted up, the inclined beam 302 is turned around the hinge of the ball nut 304 and the back part is limited by the back plate of the upper support 301 to limit the rotation between the upper support 301 and the inclined beam 302.

[0044] The ball nut 304 is hinged on the inclined beam 302 close to the back part of the hollow groove.

[0045] The lower support 306 is hinged on the driver 305 and fixed on the box body 5.

[0046] The back part of the inclined beam 302 provides a hollow groove for the ball screw 303 to extend. The driver 305 drives the ball screw 303 to connect with the ball nut 304 by screw thread to drive the hat brim 2 hinged on the inclined beam 302 to turn around the hinge of the box body 5.

[0047] The box body 5 is fixed below the hat brim 2 with a vice support beam 4 for supporting and limiting the hat brim 2 after falling down.

[0048] As a further improvement, two groups of the vice support beam 4 are symmetrically arranged on the left and right sides.

[0049] In the embodiment, the driver 305 is a self-locking motor or a hydraulic motor.

[0050] It should be noted that for the driver 305, a self-locking motor or a hydraulic motor can be selected by a person skilled in the art according to actual needs. When a hydraulic motor is selected, a self-locking mechanism needs to be installed in the hydraulic system or the oil supply and return path to prevent the hydraulic motor from rotating and causing the hat brim 2 to fall down when the oil supply is stopped.

[0051] As shown in Fig. 3, when the hat brim 2 is turned over, the operator issues an instruction through the operation panel. After receiving the instruction, the controller starts two groups of drivers 305 to drive the ball screw 303 to rotate. Since the ball screw 303 is connected with the ball nut 304 by screw thread, the inclined beam 302 installed on the ball nut 304 lifts up the hat brim 2 when the ball screw 303 rotates, and the hat brim 2 turns around the hinge of the box body 5.

[0052] When the inclined beam 302 is lifted, the maximum angle of the lower swing is limited by the upper support 301 abutting against the inclined beam 302, and the lower end of the inclined beam 302 can reach the lower support 306 when falling. During the lifting process, the ball nut 304 is hinged on the inclined beam 302, so that the ball screw 303 has a degree of freedom with the inclined beam 302. When the upper support 301 abuts against the inclined beam 302, the ball screw 303 applies a supporting force to the inclined beam 302. Since the upper end of the inclined beam 302 is limited, the inclined beam 302 is turned around the hinge with the ball nut 304, the angle between the inclined beam 302 and the ball screw 303 is reduced, and the ball screw 303 is affected to pass through the hollow slot opened on the back of the inclined beam 302.

[0053] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A non-highway dump truck tiltable cargo box canopy comprising a cargo box body (5) mounted on a frame (1) and a canopy (2) hinged to said cargo box body (5), characterized in that, The brim (2) is hinged with the turnover mechanism (3) with the trunk body (5); Wherein, the turnover mechanism (3) includes the inclined beam (302) hinged with the brim (2), the ball nut (304) hinged on the inclined beam (302), the ball screw (303) matched with the ball nut (304) and the driver (305) installed on the ball screw (303); The inclined beam (302) provides a hollow slot extended when the ball screw (303) rotates, the driver (305) is hinged with the trunk body (5), the brim (2) hinged with the inclined beam (302) is driven to turn around the hinge of the trunk body (5) by the driver (305) driving the ball screw (303) and the ball nut (304) threadedly connected.

2. The off-highway dump truck invertible box canopy in accordance with claim 1, characterized in that: The trunk body (5) is fixed with the vice support beam (4) below the brim (2) for supporting and limiting the brim (2) after falling.

3. The off-highway dump truck invertible box canopy of claim 2, wherein: The upper support (301) is hinged on the inclined beam (302) and fixed on the brim (2), the inclined beam (302) turns around the hinge of the ball nut (304) and limits the rotation between the upper support (301) and the inclined beam (302) by the back plate of the upper support (301) when rising.

4. The off-highway dump truck invertible box canopy of claim 3, wherein: The lower support (306) is hinged on the driver (305) and fixed on the trunk body (5).

5. The off-highway dump truck invertible box canopy of claim 4, wherein: The ball nut (304) is hinged on the inclined beam (302) close to the hollow slot.

6. The off-highway dump truck invertible box canopy of claim 5, wherein: The inclined beam (302) is U-shaped square tube.

7. The off-highway dump truck invertible box canopy of any one of claims 1-6, wherein: The turnover mechanism (3) is symmetrically arranged in two groups.

8. The off-highway dump truck invertible box canopy of claim 7, wherein: The driver (305) adopts self-locking motor or hydraulic motor.

9. The off-highway dump truck invertible box canopy of any one of claims 1-6, wherein: The driver (305) adopts self-locking motor or hydraulic motor.

10. The off-highway dump truck invertible box canopy of claim 2, wherein: The vice support beam (4) is symmetrically arranged in two groups.

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