A rear frame for an articulated mine car

Abstract

The utility model relates to a car frame structure technical field especially relates to a rear car frame for hinged mine car, it includes the front plate, tail plate and two parallel longitudinal beams that are surrounded and welded into rectangle, the front plate is provided with the mounting flange of mounting articulated seat, the longitudinal beam is the open downward groove type beam that three steel plates weld, the longitudinal beam is provided with two steel plate spring seats for articulated steel plate spring along the length direction, the tail end of longitudinal beam is provided with the car bucket articulated seat of articulated car bucket, two longitudinal beams between are provided with two cross beams, two cross beams between are provided with the lifting oil cylinder mounting frame of installing car bucket lifting oil cylinder. The utility model's car frame adopts the cutting steel plate welding, many weight reduction holes, no curved surface structure, greatly reduce the car frame weight, reduce the production difficulty, and each structure can adopt the modular production, then general assembly group weld, improve the standardization and production efficiency of car frame.

Description

Technical Field

[0001] This utility model relates to the field of vehicle frame structure technology, and in particular to a rear frame for articulated mining cars. Background Technology

[0002] In articulated mining cars, the rear frame serves as a separate frame specifically for the cargo box, supporting the cargo box and connecting the cab. Especially in four-wheel-drive articulated mining cars, it also supports or stabilizes the power transmission system. Therefore, the problem this case aims to solve is how to design a frame that meets the above functions and vehicle operating strength requirements, while also being structurally simple, lightweight, and suitable for standardized production. Utility Model Content

[0003] The purpose of this utility model is to address the shortcomings of existing technologies by providing a rear frame for articulated mining cars. It is made by welding cut steel plates, and the welded steel plates and the welded structure have no curved surfaces, which reduces the difficulty of production. The overall structure of the frame is smooth and simple. The main body is made of thin steel plates, while the load-bearing parts are reinforced to meet the strength requirements of the frame and reduce the weight.

[0004] The technical solution adopted by this utility model to solve its technical problem is: a rear frame for an articulated mine car, including a front plate, a tail plate, and two parallel longitudinal beams welded together in a rectangle. The front plate is provided with a mounting flange for mounting the articulation seat. The longitudinal beam is a channel-shaped beam with an opening facing downward, welded from three steel plates. The longitudinal beam is provided with two leaf spring seats for articulating leaf springs along its length. The tail end of the longitudinal beam is provided with a car bucket articulation seat for articulating the car bucket. Two cross beams are provided between the two longitudinal beams. A lifting cylinder mounting frame for mounting the car bucket lifting cylinder is provided between the two cross beams.

[0005] Preferably, the thickness of the front plate is 3 to 5 times that of the longitudinal beam steel plate, and the front plate is provided with weight reduction holes around the mounting flange.

[0006] Preferably, a mounting plate for supporting the power transmission mechanism is welded between the two longitudinal beams near the front plate.

[0007] Preferably, the longitudinal beam is welded from a top plate, an inner plate, and an outer plate. The thickness of the top plate is greater than that of the inner and outer plates. The inner and outer plates are parallel, and the inner and outer plates are L-shaped with bevels and arcs at the wide and narrow portions. Both plates are T-shaped welded to the front plate at their wide portions.

[0008] Preferably, the leaf spring seat is built into the slot of the longitudinal beam. The leaf spring seat includes two thick steel plates with coaxial holes and welded to the inner side of the inner side plate or the outer side plate. The height of the thick steel plate is equal to the height of the inner side plate or the outer side plate at the welding point, and the top of the thick steel plate abuts against the top plate. In addition, the inner side plate and the outer side plate have holes coaxial with the mounting holes of the leaf spring seat.

[0009] Preferably, the outer side of the outer plate is provided with two mudguards in a figure-eight shape.

[0010] Preferably, the bottom of the truck bed hinge seat is welded with a locking device mounting seat for installing the truck bed rear panel locking device.

[0011] Preferably, the longitudinal beam is provided with a limiting rod on the outer side of the front section near the front plate to prevent the truck bed from swaying to the side, and the top of the limiting rod is provided with an inclined rod to facilitate correction when the truck bed falls.

[0012] Preferably, one of the crossbeams is hinged to a support rod that supports the truck bed when it is raised, and a support rod for placing the support rod is provided between the two longitudinal beams.

[0013] Preferably, the tail plate and the crossbeam have the same structure, both being welded together from a vertical plate and four horizontally placed reinforcing plates, and the tail plate is provided with a towing seat for dragging.

[0014] The beneficial effects of this utility model are as follows: A rear frame for an articulated mine car includes a front plate and a rear plate welded into a rectangle, and two parallel longitudinal beams. The front plate is provided with a mounting flange for mounting the articulation seat. The longitudinal beams are channel-shaped beams with downward openings, welded from three steel plates. Two leaf spring seats for articulating leaf springs are provided along the length of the longitudinal beams. A car bucket articulation seat for the articulated car bucket is provided at the tail end of the longitudinal beams. Two crossbeams are provided between the two longitudinal beams, and a lifting cylinder mounting bracket for mounting the car bucket lifting cylinder is provided between the two crossbeams. The frame of this utility model is made by welding cut steel plates, with multiple weight-reducing holes and a non-curved surface structure, greatly reducing the weight of the frame and lowering the manufacturing difficulty. Furthermore, each structure can be produced modularly and then assembled and welded, improving the standardization and production efficiency of the frame. Attached Figure Description

[0015] Figure 1 This is a perspective view of the rear frame of an articulated mine car according to the present invention. Figure 2 This is a front view of the rear frame of an articulated mine car according to the present invention. Figure 3 yes Figure 2 The right view; Figure 4This is a transverse sectional view of the longitudinal beam at the leaf spring seat.

[0016] Explanation of reference numerals in the attached figures: 1—Front plate, 2—Tail plate, 3—Longitudinal beam, 31—Top plate, 32—Inner side plate, 33—Outer side plate, 4—Leaf spring seat, 5—Cargo bed articulation seat, 6—Crossbeam, 7—Lifting cylinder mounting bracket, 8—Mudguard, 9—Locking device mounting seat, 10—Limit rod, 11—Support rod, 12—Traction seat. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the present invention.

[0018] like Figures 1-4 As shown, a rear frame for an articulated mine car according to this embodiment includes a front plate 1, a tail plate 2, and two parallel longitudinal beams 3 welded together in a rectangle. The front plate 1 is provided with a mounting flange for mounting the articulation seat. The longitudinal beam 3 is a channel-shaped beam with an opening facing downward, welded from three steel plates. The longitudinal beam 3 is provided with two leaf spring seats 4 for articulating leaf springs along its length. The tail end of the longitudinal beam 3 is provided with a car bucket articulation seat 5 for articulating the car bucket. Two crossbeams 6 are provided between the two longitudinal beams 3. A lifting cylinder mounting bracket 7 for mounting the car bucket lifting cylinder is provided between the two crossbeams 6.

[0019] The rear frame of this embodiment is used for articulated mining cars. The front end is hinged to the car head. An axle can be installed through two sets of leaf spring seats 4. The axle is connected to the gearbox of the car head through a differential to realize the driving of the rear frame.

[0020] The rear frame structure in this embodiment is flat and square, without any curved surfaces, which simplifies the structure as much as possible. Furthermore, it adopts modular design and production, which improves product standardization and production efficiency.

[0021] The front plate 1, which serves as a load-bearing plate hinged to the front of the vehicle, is made of a relatively thick steel plate. In order to increase the connection strength with the longitudinal beam 3, the top plate 31, inner side plate 32, and outer side plate 33 that make up the longitudinal beam 3 are welded into a T-shaped channel structure. The thickness of the top plate 31 is greater than that of the inner side plate 32 and the outer side plate 33. In addition, the inner side plate 32 and the outer side plate 33 are L-shaped, and the height of the end of the inner side plate 32 and the outer side plate 33 closest to the front plate 1 is approximately equal to the height of the front plate 1.

[0022] In order to prevent the truck bed from tilting when it is lowered and to prevent the truck bed from swaying when the vehicle is moving, a limiting rod 10 is provided on the outer side of the front section of the longitudinal beam 3 near the front plate 1 to prevent the truck bed from swaying. The top of the limiting rod 10 is provided with an inclined rod to facilitate the correction when the truck bed is lowered.

[0023] In order to facilitate subsequent maintenance of the vehicle frame, one of the two crossbeams 6 is hinged with a support rod 11 to support the vehicle bed when it is raised, and a support rod is provided between the two longitudinal beams 3 to place the support rod 11.

[0024] In addition, a mudguard 8 is provided on each side of the wheel mounting position. The two mudguards 8 are in a figure-eight shape and are welded to the outer side of the outer plate 33.

[0025] In addition, the tail plate 2 and the crossbeam 6 have the same structure, both of which are welded together from a vertical plate and four horizontal reinforcing plates. The tail plate 2 is provided with a towing seat 12 for dragging.

[0026] Additionally, a locking device mounting base 9 for installing a truck bed rear panel locking device is welded to the bottom of the truck bed hinged seat 5. For dump trucks, a hook plate that can lock the bottom of the truck bed rear panel is usually hinged to the rear bottom of the truck bed. One end of the hook plate is fixed with a chain that adjusts the limit of the hook plate's action, and the other end of the chain is fixed to the locking device mounting base 9 by an adjustable length screw.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model, and for the convenience of describing the technical solution, the front, back, left, right, top, middle, and bottom orientations are based on the accompanying drawings and are not a limitation on the protection scope of this utility model. 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 solution of this utility model without departing from the essence and scope of the technical solution of this utility model.

Claims

1. A rear frame for an articulated mine car, characterized in that: The vehicle includes a front plate and a rear plate welded together in a rectangle, and two parallel longitudinal beams. The front plate is provided with a mounting flange for mounting a hinge seat. The longitudinal beams are channel beams with downward openings, welded from three steel plates. The longitudinal beams are provided with two leaf spring seats for hinged leaf springs along their length. The rear end of the longitudinal beams is provided with a truck bed hinge seat for hinged truck beds. Two crossbeams are provided between the two longitudinal beams. A lifting cylinder mounting bracket for mounting truck bed lifting cylinders is provided between the two crossbeams.

2. The rear frame for an articulated mine car according to claim 1, characterized in that: The thickness of the front plate is 3 to 5 times that of the longitudinal beam steel plate, and the front plate has weight-reducing holes around the mounting flange.

3. The rear frame for an articulated mine car according to claim 1, characterized in that: A mounting plate for supporting the power transmission mechanism is welded between the two longitudinal beams near the front plate.

4. The rear frame for an articulated mine car according to claim 1, characterized in that: The longitudinal beam is welded from a top plate, an inner plate, and an outer plate. The thickness of the top plate is greater than that of the inner and outer plates. The inner and outer plates are parallel to each other. The inner and outer plates are L-shaped and transition with bevels and arcs at the wide and narrow parts. Both plates are T-shaped welded to the front plate at the wide part.

5. A rear frame for an articulated mine car according to claim 4, characterized in that: The leaf spring seat is built into the slot of the longitudinal beam. The leaf spring seat includes two thick steel plates with coaxial holes and welded to the inner side plate or the inner side of the outer side plate.

6. The rear frame for an articulated mine car according to claim 4, characterized in that: The outer side of the outer plate is provided with two mudguards in a figure-eight shape.

7. The rear frame for an articulated mine car according to claim 1, characterized in that: The bottom of the truck bed hinge seat is welded with a locking device mounting seat for installing the truck bed rear baffle locking device.

8. The rear frame for an articulated mine car according to claim 1, characterized in that: A limiting rod is provided on the outer side of the front section of the longitudinal beam near the front plate to prevent the truck bed from swaying to the side, and a diagonal bar is provided on the top of the limiting rod to facilitate correction when the truck bed falls.

9. A rear frame for an articulated mine car according to claim 1, characterized in that: One of the crossbeams is hinged to a support rod that provides support when the truck bed is raised, and a support rod for placing the support rod is provided between the two longitudinal beams.

10. A rear frame for an articulated mine car according to claim 1, characterized in that: The tail plate and the crossbeam have the same structure, both being welded together from a vertical plate and four horizontally placed reinforcing plates. The tail plate is equipped with a towing seat for dragging.

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