A mine dump truck transmission shaft protective cover and mine dump truck

Abstract

The utility model provides a kind of mine dump truck transmission shaft protective cover and mine dump truck, protective cover includes shield bottom plate, lower protective cover and upper protective cover;Upper protective cover and lower protective cover are both used U-shaped flanging structure, and there is flanging on both sides of U-shaped flanging structure, and the U-shaped flanging of upper protective cover and lower protective cover is butted together, and the two are fixed together by detachable connecting piece, so as to cover electric transmission dump truck transmission shaft, lower protective cover is welded on the side of shield bottom plate, and the other side of shield bottom plate is fixed on hydraulic pump support by fastener, and the overall structure of protective cover can be ensured to be stable by U-shaped flanging structure, and the amplitude of shield end portion is smaller during the operation of mine car, since lower protective cover and upper protective cover are connected by detachable connecting piece, during maintenance work, it is not necessary to disassemble integrally, and only a plurality of detachable connecting pieces need to be disassembled, so that upper protective cover can be disassembled for maintenance, time and labor are saved.

Description

Technical Field

[0001] This utility model relates to the technical field of mining dump trucks, and in particular to a protective cover for the drive shaft of a mining dump truck and the mining dump truck itself. Background Technology

[0002] The statements in this section are merely background information related to this utility model and do not necessarily constitute prior art.

[0003] In the field of driveshaft safety protection technology, protective covers are crucial safety devices, especially in mining machinery. The hydraulic pumps of mining dump trucks typically use driveshafts to transmit torque, making protective covers essential for driveshaft safety. Previously, the driveshafts of mining dump trucks were often directly exposed, lacking necessary protection. Considering the harsh road conditions and environments of mining dump trucks, mud and gravel can easily splash onto the high-speed rotating driveshaft during vehicle operation. This can not only damage the driveshaft but also potentially cause serious personal injury risks. To effectively prevent such accidents, installing protective covers on the driveshaft has become a necessary measure.

[0004] In mining dump trucks, the driveshaft is typically installed behind the engine or generator and at the front of the hydraulic pump bracket, leaving limited space for driveshaft protection. Existing driveshaft guards often use cylindrical or U-shaped plates joined together, with a mesh-like structure. These guards have poor overall strength and rigidity, resulting in significant vibration at the ends during truck operation. Furthermore, existing guards are usually installed as a single unit, requiring the entire protective mesh to be removed for driveshaft maintenance, which undoubtedly increases the complexity and time consumption of the maintenance work. Therefore, it is necessary to improve existing driveshaft guards, enhancing their strength and rigidity, and optimizing their installation and disassembly design to facilitate driveshaft maintenance. Utility Model Content

[0005] In view of the above-mentioned defects or improvement needs of the prior art, this utility model provides a protective cover for the drive shaft of a mining dump truck and a mining dump truck. It improves the existing drive shaft protective cover in the background art, enhances the strength and rigidity of the existing drive shaft protective cover, and solves the problem of inconvenient disassembly of the drive shaft protective cover. At the same time, it can also prevent the cover from shaking a lot during the operation of the mining dump truck and ensure that the jump of the end of the cover is small.

[0006] This utility model provides a protective cover for the drive shaft of a mining dump truck. The protective cover includes a base plate, a lower protective cover, and an upper protective cover. Both the upper and lower protective covers adopt a U-shaped flange structure, with flanges on both sides of the U-shaped flange structure. The U-shaped flanges of the upper and lower protective covers are joined together to cover the drive shaft of the electric drive dump truck. The upper and lower protective covers are fixedly connected together by detachable connectors. The lower protective cover is welded to one side of the base plate, and the other side of the base plate is fixed to a hydraulic pump bracket by fasteners.

[0007] Furthermore, both the upper and lower protective covers are made of a single piece of steel plate pressed together.

[0008] Furthermore, the upper and lower protective covers are provided with several through holes on both sides of the U-shaped flange, which serve as connection and fixing points for the upper and lower protective covers.

[0009] Furthermore, the through holes on the U-shaped flanges on both sides of the upper protective cover are of alternating sizes and are positioned correspondingly to each other.

[0010] Furthermore, the through holes on the U-shaped flanges on both sides of the lower protective cover are of alternating sizes and are positioned correspondingly to each other.

[0011] Furthermore, the detachable connector includes bolts, washers, and nuts, and the lower protective cover is connected to the upper protective plate through the cooperation of bolts, washers, and nuts.

[0012] Furthermore, the bottom surface of the lower protective cover has multiple evenly distributed elongated holes, and the two sides have evenly distributed and symmetrically positioned elongated holes. The bottom surface and the sides of the lower protective cover are connected by an arc transition.

[0013] Furthermore, the top surface of the upper protective cover has multiple evenly distributed elongated holes, and the two sides have evenly distributed and symmetrically positioned elongated holes. The top surface and the sides of the upper protective cover are connected by an arc transition.

[0014] Furthermore, the base plate of the protective cover is a U-shaped frame structure, with several through holes on the side and bottom of the U-shaped frame structure. The fasteners are the same as the detachable connectors, both using a combination of bolts, washers and nuts. The base plate of the protective cover is fixed to the hydraulic pump bracket by the cooperation of bolts, washers and nuts.

[0015] Mining dump trucks, including the aforementioned mining dump truck drive shaft protective cover.

[0016] The present invention has the following beneficial effects with respect to one or more of the above technical solutions: 1. This utility model adopts an integral U-shaped flange structure. The two flanges of the U-shaped plate can increase the overall rigidity of the cover, ensuring the overall structure of the cover is stable and preventing large shaking of the cover during the operation of the mining dump truck, i.e., the jumping amplitude of the end of the cover is small.

[0017] 2. The entire device of this utility model is simple and quick to install. The bottom plate of the protective cover can be fixed to the support of the hydraulic pump by means of fasteners. Then, the lower protective cover is welded to the side of the bottom plate of the protective cover away from the hydraulic pump support by welding. The upper protective cover is fixed together with the lower protective cover by detachable connectors.

[0018] 3. During maintenance, there is no need for complete disassembly. The lower and upper protective covers are connected by several sets of detachable connectors. When repairing and maintaining the drive shaft, the upper protective cover can be removed simply by disassembling a few detachable connectors, saving time and effort.

[0019] The advantages of this invention in additional aspects will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0021] Figure 1 This is a schematic diagram of the drive shaft structure for a mining dump truck according to this utility model; In the diagram: 1. Base plate of the protective cover, 2. Lower protective cover, 3. Upper protective cover, 4. Bolt, 5. Washer, 6. Nut. Detailed Implementation

[0022] It should be noted that the following detailed description is exemplary and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.

[0023] It should be noted that the terminology used herein is for the purpose of describing specific implementations only and is not intended to limit the exemplary implementations of this utility model. Unless otherwise specified, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0024] This embodiment provides a protective cover for the drive shaft of a mining dump truck. The protective cover includes a base plate 1, a lower protective cover 2, and an upper protective cover 3. Both the upper protective cover 3 and the lower protective cover 2 adopt a U-shaped flange structure. There are flanges on both sides of the U-shaped flange structure. The two U-shaped flanges of the upper protective cover 3 and the lower protective cover 2 are joined together. The upper and lower protective covers are fixedly connected together by detachable connectors, thereby covering the drive shaft of the electric drive dump truck. In this way, the U-shaped flange structure can ensure the overall structure of the cover is stable, and the vibration of the end of the cover is small during the operation of the mining truck. The lower protective cover 2 is welded to one side of the base plate of the cover, and the other side of the base plate of the cover is fixed to the hydraulic pump bracket by fasteners.

[0025] Specifically, the upper protective cover 3 is made of a single piece of steel plate and is pressed as a whole. Several through holes are provided on the U-shaped flanges on both sides of the upper protective cover as connection and fixing points between the upper and lower protective covers. In this embodiment, there are four through holes. The top surface of the upper protective cover has multiple evenly distributed elongated oval holes, and the two sides have evenly distributed and symmetrically positioned elongated oval holes. This design of elongated oval holes is both dignified and aesthetically pleasing. The top and sides of the upper protective cover are connected by an arc transition, which can effectively eliminate stress concentration. The lower protective cover 2 uses the same structure as the upper protective cover. It is also a U-shaped flange structure made of a single piece of steel plate and is pressed as a whole. Several through holes are also provided on the U-shaped flanges on both sides of the lower protective cover. The size, number and position of these through holes are the same as those of the upper protective cover. In this way, the through holes on the U-shaped flanges on both sides of the upper and lower protective covers are alternately sized and their positions correspond to each other vertically. The bottom surface of the lower protective cover has multiple evenly distributed elongated oval holes, and the two sides have evenly distributed and symmetrically positioned elongated oval holes. The bottom and sides of the lower protective cover are connected by an arc transition.

[0026] The mechanism by which the ground and sides of the upper protective cover 3 and the lower protective cover 2 are connected by arc transition to eliminate stress concentration is as follows: the arc transition can disperse the stress concentration in the local area at the connection. The maximum stress value and stress concentration at the connection of the component will decrease as the radius of the transition fillet increases, and the stress distribution will be more uniform, thereby improving the fatigue safety factor of the component.

[0027] In this embodiment, the detachable connector includes bolts 4, washers 5 and nuts 6. Since the upper and lower protective covers are provided with through holes on both sides of the U-shaped flanges, and the through holes of the upper and lower protective covers are of different sizes and are positioned corresponding to each other, the lower protective cover is connected to the upper protective cover by the cooperation of bolts 4, washers 5 and nuts 6.

[0028] The base plate 1 of the protective cover adopts a U-shaped frame structure. The two sides of the U-shaped frame structure do not have flanges. Several through holes are provided on the side and bottom of the U-shaped frame structure. In this embodiment, there are four through holes on the side and bottom of the protective cover base plate. The fastener has the same structure as the detachable connector, which is a combination of bolts, washers and nuts. The protective cover base plate, i.e. the entire protective cover, is fixed on the hydraulic pump bracket by the cooperation of bolts 4, washers 5 and nuts 6.

[0029] In use, the base plate 1 of the protective cover is first fixed to the hydraulic pump bracket using fasteners (bolts 4, washers 5, nuts 6) and the four through holes. Then, the lower protective cover 2 is welded to the side of the base plate away from the hydraulic pump bracket. The upper protective cover is then fixed to the lower protective cover using bolts 4, washers 5, and nuts 6. The base plate features a simplified design with numerous curves for transitions, meeting installation requirements in confined spaces while ensuring structural strength.

[0030] This utility model also provides a mining dump truck, including the aforementioned mining dump truck drive shaft protective cover.

[0031] Although the specific embodiments of the present utility model have been described above in conjunction with the accompanying drawings, this is not intended to limit the scope of protection of the present utility model. Those skilled in the art should understand that various modifications or variations that can be made by those skilled in the art without creative effort based on the technical solution of the present utility model are still within the scope of protection of the present utility model.

Claims

1. A protective cover for the drive shaft of a mining dump truck, characterized in that, The protective cover includes a base plate, a lower protective cover, and an upper protective cover; Both the upper and lower protective covers adopt a U-shaped flange structure, with flanges on both sides of the U-shaped flange structure. The U-shaped flanges of the upper and lower protective covers are joined together and fixed together by a detachable connector, thereby covering the drive shaft of the electric drive dump truck. The lower protective cover is welded to one side of the cover base plate, and the other side of the cover base plate is fixed to the hydraulic pump bracket by fasteners.

2. The protective cover for the drive shaft of a mining dump truck as described in claim 1, characterized in that, Both the upper and lower protective covers are made of a single piece of steel plate pressed together.

3. A protective cover for the drive shaft of a mining dump truck as described in claim 1, characterized in that, The upper and lower protective covers are provided with several through holes on both sides of the U-shaped flange, which serve as connection and fixing points for the upper and lower protective covers.

4. A protective cover for the drive shaft of a mining dump truck as described in claim 3, characterized in that, The through holes on the U-shaped flanges on both sides of the upper protective cover are of alternating sizes and are positioned correspondingly to each other.

5. A protective cover for the drive shaft of a mining dump truck as described in claim 3, characterized in that, The through holes on the U-shaped flanges on both sides of the lower protective cover are of alternating sizes and are positioned correspondingly to each other.

6. A protective cover for the drive shaft of a mining dump truck as described in claim 1, characterized in that, The detachable connector includes bolts, washers, and nuts, and the lower protective cover is connected to the upper protective plate by the cooperation of bolts, washers, and nuts.

7. A protective cover for the drive shaft of a mining dump truck as described in claim 1, characterized in that, The bottom surface of the lower protective cover has multiple evenly distributed elongated holes, and the two sides have evenly distributed and symmetrically positioned elongated holes. The bottom surface and the sides of the lower protective cover are connected by an arc transition.

8. A protective cover for the drive shaft of a mining dump truck as described in claim 1, characterized in that, The top surface of the upper protective cover has multiple evenly distributed elongated holes, and the two sides have evenly distributed and symmetrically positioned elongated holes. The top surface and the sides of the upper protective cover are connected by an arc transition.

9. A protective cover for the drive shaft of a mining dump truck as described in claim 1, characterized in that, The bottom plate of the protective cover is a U-shaped frame structure. Several through holes are provided on the side and bottom of the U-shaped frame structure. The protective cover device is fixed to the hydraulic pump bracket by bolts and nuts. The fasteners and detachable connectors have the same structure, both using a combination of bolts, washers and nuts to fix the base plate of the cover to the hydraulic pump bracket.

10. A mining dump truck, characterized in that: The invention includes a protective cover for the drive shaft of a mining dump truck as described in any one of claims 1 to 9.

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