Dumper

Abstract

The utility model relates to the field of transport vehicles, in particular to a dumper. A frame and a cargo compartment of the dumper are connected through a hinge device, the hinge device comprises an overturning seat arranged on the frame and an overturning support arranged on the cargo compartment and corresponding to the overturning seat, the overturning seat is provided with a shaft sleeve, the shaft sleeve is provided with a first oil injection hole, and the first oil injection hole is provided with a second oil injection hole. Lubricating oil can be injected into the shaft sleeve through the first oil injection hole, the overturning base is connected with the overturning support through a pin shaft, and the pin shaft penetrates through the interior of the shaft sleeve. The turnover seat of the connecting device between the frame and the cargo compartment of the dumper is provided with the first oil injection hole, and lubricating oil can be injected into the shaft sleeve of the turnover seat through the first oil injection hole, so that the friction between the pin shaft and the shaft sleeve is reduced, and the part loss of a hinge device is reduced.

Description

Technical Field

[0001] The utility model relates to the field of transport vehicles, in particular to a dump truck. Background Art

[0002] Wide-body mining dump trucks (also known as mining trucks) are heavy-duty trucks widely used in open-pit mines to transport rock and earth. With the continued development of mining resources both domestically and internationally, demand for mining trucks continues to grow. In the mining and quarrying industries, mining trucks play a crucial role in transportation, requiring close coordination with other mining equipment. They must be able to withstand harsh working conditions and operate reliably and stably, holding the key to efficient and productive mine operations.

[0003] Material unloading is a critical step in mining truck operations, requiring the lifting, unloading, and retraction of the cargo compartment. The cargo compartment and frame are typically connected by a tilting seat and connecting pins, with a limiter mechanism designed to lift and retract the cargo compartment. Over time and frequent operation, the limiter plates, tilting seat, and pins can wear to varying degrees, leading to poor fit. This can lead to problems such as unbalanced loading, movement, and cracking of the tilting seat, shortening the vehicle's service life. Utility Model Content

[0004] In view of this, the present invention provides a dump truck, thereby solving or at least alleviating one or more of the above-mentioned problems and other problems existing in the prior art.

[0005] In order to achieve the above-mentioned object, the present invention provides a dump truck, wherein the frame and the cargo box of the dump truck are connected by an articulated device, and the articulated device includes a flip seat provided on the frame and a flip support provided on the cargo box and corresponding to the flip seat.

[0006] The flip seat is provided with a shaft sleeve, and the shaft sleeve is provided with a first oil filling hole, through which lubricating oil can be injected into the interior of the shaft sleeve. The flip seat is connected to the flip support through a pin shaft, and the pin shaft passes through the interior of the shaft sleeve.

[0007] In the dump truck as described above, optionally, a bushing is provided on the outer periphery of the pin shaft, and the pin shaft together with the bushing passes through the interior of the sleeve.

[0008] In the dump truck as described above, optionally, a plurality of bushings are connected and sleeved outside the pin shaft, and the connecting gaps between adjacent bushings are used to store the lubricating oil.

[0009] In the dump truck as described above, optionally, the bushing is provided with a second oil filling hole for injecting lubricating oil.

[0010] In the dump truck as described above, optionally, an inner wall of the bushing is provided with an oil groove, and the oil groove is used to guide the lubricating oil to be evenly distributed on the inner wall of the bushing.

[0011] In the dump truck as described above, optionally, the inner wall of the bushing is uniformly distributed with a plurality of grooves, and the grooves are used to place grease.

[0012] In the dump truck as described above, optionally, the dump truck further includes a limiting device, which includes limiting components provided on both sides of the frame and limiting columns provided on both sides of the cargo compartment, and the limiting columns abut against the limiting components.

[0013] In the dump truck as described above, optionally, the limiting assembly includes a base plate and a wear-resistant plate, the base plate is fixedly mounted on both sides of the frame, and the wear-resistant plate is detachably mounted on the base plate.

[0014] In the dump truck as described above, optionally, the limiting assembly further includes one or more adjustment gaskets, and the adjustment gaskets are arranged between the base plate and the wear-resistant plate.

[0015] In the dump truck as described above, optionally, the wear-resistant plate and the adjustment gasket are mounted on the base plate by bolts.

[0016] The frame and cargo box of the dump truck of this utility model are connected by a lubricable articulated joint. Specifically, the tilting seat of the connecting device is provided with a first oil filling hole, through which lubricating oil can be injected into the interior of the tilting seat's shaft sleeve. Two bushings are arranged end-to-end inside the shaft sleeve. The connecting gap between the two bushings forms an oil reservoir for storing lubricating oil. The inner walls of the bushings are evenly distributed with grooves for storing grease. Lubricating oil is present both inside and outside the bushings, thereby reducing friction between the pin, bushing, and shaft sleeve, and minimizing wear and tear on the articulated joint components.

[0017] The utility model also provides an assembled cargo compartment limiting device, which includes a base plate fixed on the vehicle frame and a wear-resistant plate detachably mounted on the base plate. The wear-resistant plate makes the limiting device more wear-resistant and less prone to damage, thereby increasing the service life of the limiting device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The disclosure of the present invention will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0019] Figure 1 This is a partial side view of an embodiment of a dump truck of the present invention, showing a cargo compartment and a vehicle frame.

[0020] Figure 2 is an exploded view of the hinge device of an embodiment of the self-unloading vehicle of the present application.

[0021] Figure 3 is Figure 2 is a partial enlarged view of an embodiment of the self-unloading vehicle, showing a shaft sleeve.

[0022] Figure 4 is a perspective view of a bushing of an embodiment of the self-unloading vehicle of the present application.

[0023] Figure 5 is a perspective view of a bushing of another embodiment of the self-unloading vehicle of the present application, showing a groove inside the bushing.

[0024] Figure 6 is a perspective view of a bushing of another embodiment of the self-unloading vehicle of the present application.

[0025] Figure 7 is an exploded view of a limiting assembly of an embodiment of the self-unloading vehicle of the present application.

[0026] Reference signs: 1 - cargo compartment; 11 - vehicle frame; 13 - hinge device; 14 - vehicle tail; 15 - vehicle head; 2 - turnover seat; 21 - turnover support; 22 - first panel; 23 - second panel; 24 - mounting through hole; 3 - shaft sleeve; 31 - first oil hole; 32 - oil nozzle; 4 - bushing; 41 - groove; 42 - second oil hole; 43 - oil groove; 44 - connecting gap; 5 - pin shaft; 6 - limiting device; 61 - limiting column; 62 - base plate; 63 - adjusting gasket; 64 - wear plate; 65 - limiting assembly. DETAILED DESCRIPTION

[0027] The structure, composition, features and advantages of the self-unloading vehicle of the present application will be described below in an exemplary manner with reference to the accompanying drawings and specific embodiments, however, all the descriptions shall not be used to form any limitation on the present application.

[0028] In addition, for any single technical feature described or implied in the embodiments mentioned herein, or any single technical feature shown or implied in the drawings, the present application still allows any combination or deletion to be continued between these technical features (or their equivalents) without any technical obstacles, so it should be considered that more embodiments according to the present application are also within the scope of the description herein.

[0029] It should also be noted that the terms "inside" and "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships of the limiting device and the articulated device of the dump truck as shown in the accompanying drawings. These are only for the convenience of describing the present disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on the present disclosure.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Thus, features defined as "first" or "second" may explicitly or implicitly include at least one of these features.

[0031] In the description of the present disclosure, “a plurality of” means at least two, such as two, three or more, unless otherwise clearly defined.

[0032] from Figure 1 It can be seen that the dump truck of the present invention includes a cargo compartment 1 and a frame 11 , the cargo compartment 1 is located on the frame 11 , and an articulation device 13 is provided between the cargo compartment 1 and the frame 11 , and the cargo compartment 1 can be flipped around the articulation device 13 as an axis.

[0033] exist Figure 1 In the embodiment of the present invention, the articulated device 13 is provided near the rear end 14, so that the cargo box 1 can be tilted backward to unload the materials therein from the rear end 14. In other embodiments, the articulated device 13 can also be installed on one or both sides of the dump truck to achieve single-sided or double-sided tipping unloading of the cargo box.

[0034] Combine Figure 2 As shown, the articulated device 13 includes a tilting support 21 provided on the cargo box 1 and a tilting base 2 provided on the vehicle frame 11, with the tilting base 2 and the tilting support 21 being arranged correspondingly. Specifically, the tilting base 2 includes two opposing first panels 22, and the tilting base 21 includes two opposing second panels 23. Both the first panels 22 and the second panels 23 are provided with mounting holes 24. It is understood that the number of first panels 22 and second panels 23 is not limited to this.

[0035] The spacing between the two first panels 22 can be smaller than the distance between the two second panels 23. The two first panels 22 can be nested between the two second panels 23, i.e., the flip seat 2 is nested within the flip support 21, with the mounting holes 24 of the first and second panels 22 and 23 corresponding to each other. As shown by the dotted lines in the figure, the pin 5 can pass through the mounting holes 24 of the first and second panels 22, 23 to hinge the flip support 21 and flip seat 2 together, thereby allowing the cargo box 1 to be flipably connected to the vehicle frame 11.

[0036] A bushing 4 can be provided around the outer periphery of the pin 5. During installation, the bushing 4 is sleeved over the pin 5 and inserted into the mounting holes 24 of the flip support 21 and the flip seat 2. The bushing 4 can prevent the pin 5 from contacting or colliding with the flip support 21 and the flip seat 2. The bushing 4 has an interference fit in the mounting holes 24 and a clearance fit with the pin 5, thereby reducing wear between the pin 5, the flip support 21, and the flip seat 2, thereby extending the service life of the pin 5, the flip support 21, and the flip seat 2.

[0037] according to Figure 2 In the embodiment, a shaft sleeve 3 may be provided between the mounting holes 24 of the two first panels 22 of the flip seat 2. When installing, the bushing 4 passes through the shaft sleeve 3. Figure 3 As shown, the sleeve 3 is provided with a first oil injection hole 31, through which lubricating oil can enter the sleeve 3 to inject lubricating oil between the flip seat 2 and the bushing 4 therein, thereby further reducing lubrication between the outer periphery of the bushing 4 and the interior of the sleeve 3, thereby reducing friction between the bushing 4 and the sleeve 3, and at the same time lubricating the flip seat 2 to prevent cracking. Furthermore, an oil injection nozzle 32 can be installed or formed at the first oil injection hole 31 to facilitate the injection of lubricating oil.

[0038] Optionally, combined Figure 4 As shown, two bushings 4 are connected end to end and are sleeved on the outside of the pin 5 and are inserted into the shaft sleeve 3. The connecting gap 44 between the two bushings 4 can form an oil reservoir to store lubricating oil to maintain lubrication on the outer periphery of the bushings 4. In other embodiments, the number of bushings 4 connected end to end is not limited and can be multiple. In other embodiments, only one bushing 4 can be provided, and an annular oil reservoir recessed relative to the outer surface of the bushing 4 can be formed, or a plurality of arcuate oil reservoirs can be formed on the outer surface of the bushing 4 and radially penetrate the bushing 4. These arcuate oil reservoirs can be located on the same circular ring.

[0039] Furthermore, the inner wall of the bushing 4 may be provided with a groove 41, and the groove 41 is used to place grease to reduce the friction between the pin 5 and the bushing 4. Figure 4 As shown, the inner wall of the bushing 4 is uniformly distributed with a plurality of grooves 41 , which can be distributed along the circumference or axial direction of the bushing 4 so that the outer periphery of the pin 5 is lubricated in all directions of the inner wall of the bushing 4 to reduce friction.

[0040] In another embodiment, combined Figure 5 As shown, a bushing 4 can be provided inside the shaft sleeve 3 and sleeved outside the pin 5. In this embodiment, the bushing 4 can be provided with a second oil filling hole 42, and the lubricating oil can enter the interior of the bushing 4 through the second oil filling hole 42.

[0041] Furthermore, the inner wall of the bushing 4 may be provided with an oil groove 43 , which may be spirally distributed on the inner wall of the bushing 4 from the second oil filling hole 42 to guide the lubricating oil to be evenly distributed on the inner wall of the bushing 4 .

[0042] In another embodiment, the distance between the two first panels 22 is also greater than the distance between the two second panels 23, so that the two second panels 23 are embedded between the two first panels 22 for installation, that is, the flip support 21 is embedded in the flip seat 2, and a shaft sleeve 3 is provided between the mounting holes 24 of the two second panels 23. The shape and structure of the shaft sleeve 3 are similar to those of the first panels 22. Figure 1 The same, no longer repeated here.

[0043] from Figure 1 It can also be seen that the dump truck of the present invention is also provided with a limiting device 6, which includes limiting columns 61 arranged on both sides of the cargo compartment 1, and limiting components 65 arranged on both sides of the frame 11, and the limiting components 65 are arranged corresponding to the limiting columns 61.

[0044] according to Figure 1 In the embodiment, the limiting device 6 is provided near the front of the vehicle 15. Figure 1 In the embodiment, the cargo box 1 is lifted near the front end 15 and tilted backward, unloading at the rear end 14. Therefore, the position limiter 6 is located near the front end 15 to minimize lateral overloading and movement of the cargo box 1 during transportation. In other embodiments, the position limiter 6 can also be located at other locations on the dump truck as long as it can limit the lateral movement range of the cargo box 1.

[0045] Specifically, Figure 6 An exploded view of the limiting assembly 65 of the limiting device 6 on one side of the vehicle frame 11 is shown. As shown in the figure, the limiting assembly 65 includes a base plate 62 and a wear plate 64. The base plate 62 is fixedly mounted on the vehicle frame 11, and the wear plate 64 is detachably mounted on the base plate 62. That is, the wear plate 64 is located at the outermost side of the limiting assembly 65 and is used to abut the limiting column 61 of the cargo compartment 1. The wear plate 64 is a high-strength, high-hardness, and high-wear-resistant panel. The wear plate 64 can reduce wear of the limiting assembly 65, thereby reducing the replacement frequency of the limiting assembly 65 and saving maintenance costs.

[0046] It should be noted that the base plate 62 may be fixedly mounted by, but not limited to, welding, riveting, etc., and the wear plate 64 may be detachably mounted by, but not limited to, bolting. Due to the detachable mounting of the wear plate 64, when worn, the wear plate 64 can be conveniently replaced by bolts.

[0047] Further, one or more adjusting shims 63 can be arranged between the base plate 62 and the wear plate 64, and the number of adjusting shims 63 can be set according to the distance or position between the limiting posts 61 on the two sides of the cargo compartment 1, that is, the length of the wear plate 64 protruding from the vehicle frame 11 can be adjusted by increasing or decreasing the number of adjusting shims 63 to adapt to cargo compartments 1 of different widths.

[0048] According to Figure 6 According to an embodiment of the present application, the base plate 62, the adjusting shims 63 and the wear plate 64 are the same size and are stacked in sequence on one side of the vehicle frame 11.

[0049] When transporting goods, the cargo compartment 1 is located on the vehicle frame 11, and the limiting posts 61 on both sides of the cargo compartment 1 abut against the wear plate 64 of the limiting assembly 65, and the limiting assembly 65 limits the displacement range of the limiting posts 61 on both sides of the vehicle frame 11, thereby limiting the position of the cargo compartment 1 and preventing the cargo compartment 1 from moving during transportation.

[0050] The hinge device 13 connecting the vehicle frame 11 and the cargo compartment 1 of the dump truck of the present application adopts a lubricated turnover seat 2 structure, that is, the turnover seat 2 is provided with a first oil injection hole 31, and lubricating oil can be injected into the shaft sleeve 3 of the turnover seat 2 through the first oil injection hole 31, so that the bushing 4 and the inner wall of the shaft sleeve 3 are lubricated, the mutual friction is reduced, and the loss is reduced.

[0051] Further, the oil storage groove formed by the connecting gap 44 of the two bushings 4 connected end to end is used to store lubricating oil, so as to maintain the lubrication of the outer periphery of the bushing 4. The inner wall of the bushing 4 can also be uniformly distributed with grooves 41 to store lubricating grease, which can reduce the friction between the pin shaft 5 and the inner wall of the bushing 4 and reduce the loss.

[0052] The utility model also provides a prefabricated cargo compartment limiting device 6, which comprises a base plate 62 fixed on the vehicle frame and a wear plate 64 detachably mounted on the base plate 62, so that the limiting device 6 is more wear-resistant and less likely to be damaged, and the wear plate 64 can be easily replaced when it is worn out.

[0053] The technical scope of the present application is not limited to the above description, and those skilled in the art can make various modifications and changes to the above embodiments without departing from the technical concept of the present application, and these modifications and changes should be within the scope of the present application.

Claims

1. A dump truck, characterized in that: The frame (11) of the dump truck and the cargo compartment (1) are connected by an articulated device (13), wherein the articulated device (13) comprises a turning seat (2) provided on the frame (11) and a turning support (21) provided on the cargo compartment (1) and corresponding to the turning seat (2). The flip seat (2) is provided with a shaft sleeve (3), and the shaft sleeve (3) is provided with a first oil injection hole (31), through which lubricating oil can be injected into the interior of the shaft sleeve (3). The flip seat (2) and the flip support (21) are connected via a pin (5), and the pin (5) is provided inside the shaft sleeve (3).

2. The dump truck according to claim 1, wherein: The outer periphery of the pin shaft (5) is provided with a bushing (4), and the pin shaft (5) and the bushing (4) are inserted into the shaft sleeve (3).

3. The dump truck according to claim 2, wherein: A plurality of bushings (4) are connected and sleeved outside the pin shaft (5), and the connecting gaps (44) between adjacent bushings (4) are used to store the lubricating oil.

4. The dump truck according to claim 2, wherein: The bushing (4) is provided with a second oil injection hole (42) for injecting lubricating oil.

5. The dump truck according to claim 2, wherein: An oil groove (43) is provided on the inner wall of the bushing (4), and the oil groove (43) is used to guide the lubricating oil to be evenly distributed on the inner wall of the bushing (4).

6. The dump truck according to claim 2, wherein: The inner wall of the bushing (4) is evenly distributed with a plurality of grooves, and the grooves (41) are used for placing grease.

7. The dump truck according to claim 1, wherein: The dump truck further comprises a limiting device (6), wherein the limiting device (6) comprises limiting assemblies (65) provided on both sides of the vehicle frame (11) and limiting posts (61) provided on both sides of the cargo compartment (1), wherein the limiting posts (61) abut against the limiting assemblies (65).

8. The dump truck according to claim 7, wherein: The limiting assembly (65) comprises a base plate (62) and a wear-resistant plate (64), wherein the base plate (62) is fixedly mounted on both sides of the vehicle frame (11), and the wear-resistant plate (64) is detachably mounted on the base plate (62).

9. The dump truck according to claim 8, wherein: The limiting assembly (65) further includes one or more adjusting washers (63), and the adjusting washers (63) are arranged between the base plate (62) and the wear-resistant plate (64).

10. The dump truck according to claim 9, characterized in that The wear-resistant plate (64) and the adjustment gasket (63) are mounted on the base plate (62) via bolts.

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