Rear axle box access door protection device and electric wheel mining dump truck

Abstract

The utility model discloses a rear axle box access door protection device and an electric wheel mining dump truck, and the rear axle box access door protection device comprises a left bracket, a right bracket, a fastening component and an iron chain, the left support and the right support are the same in structure and opposite in position and comprise a bottom plate, a shaft part, a rotation stopping plate, an upper supporting lug and a lower supporting lug, the bottom plate is provided with a bottom plate through hole, the shaft part, the rotation stopping plate and the upper supporting lug are connected to the two sides of the bottom plate respectively, and the upper supporting lug and the lower supporting lug are located on the same side; the shaft part is provided with a shaft part through hole and a bottom plate through hole, the shaft part through hole is communicated with the bottom plate through hole, and the rotation stopping plate is arranged at the edge of the bottom plate; the upper support lug is provided with an upper support lug through hole, and the lower support lug is provided with a lower support lug through hole; the fastening component is arranged in the bottom plate through hole and the shaft part through hole in a penetrating mode, and the two ends of the iron chain are connected into the upper supporting lug through holes and the lower supporting lug through holes of the left support and the right support respectively. The access door can be effectively protected.

Description

Technical Field

[0001] The utility model belongs to the field of electric wheel mining dump trucks, and particularly relates to a rear axle box inspection door protective device and an electric wheel mining dump truck. Background Art

[0002] like Figure 1 1 is a schematic diagram of the side structure of an electric wheel mining dump truck in the prior art.

[0003] The main components of the electric wheel mining dump truck 1 include: a frame 10, a car body 11, a rear axle box 12, and a suspension cylinder 13. The rear axle box 12 is located at the rear of the frame 10 of the dump truck 1, and the car body 11 is located above the frame 10. Wheel motors and tires are respectively installed on both sides of the rear axle box 12, and the wheel motors drive the tires to rotate; the suspension cylinder 13 is located at the lower rear of the car body 11, and the two ends of the suspension cylinder 13 are respectively hinged to the car body 11 and the rear axle box 12. A lifting cylinder is hinged at the lower front of the car body 11, and the rear part of the frame 10 is supported on the rear axle box 12 by means of the suspension cylinder 13; the extension and retraction of the lifting cylinder drives the car body 11 to rotate.

[0004] The electric wheel mining dump truck 1 is a large-scale transport equipment used for transporting earth and minerals in open-pit mines. Wheel motors and tires are installed on both sides of its rear axle box 12 for driving. The rear axle box 12 is usually a cylindrical structure, and cables, hydraulic pipes and brakes connecting the wheel motors on both sides are arranged inside it. In order to facilitate the inspection and maintenance of internal components, an inspection door is designed on the rear side. However, when the dump truck lifts the car body to unload materials, stones or large pieces of minerals often roll down from the material pile. The rolling stones or large pieces of minerals can easily damage the rear axle box inspection door, affecting the normal use of the inspection door, and thus affecting the normal use of the dump truck. Utility Model Content

[0005] The purpose of the utility model is to provide a rear axle box inspection door protection device and an electric wheel mining dump truck, which can effectively protect the inspection door.

[0006] In order to achieve the above-mentioned purpose, the technical solution used in this utility model is:

[0007] The rear axle box inspection door protection device includes: a left bracket, a right bracket, a fastening member and an iron chain; the left bracket and the right bracket have the same structure and are relatively positioned, including: a bottom plate, a shaft, a stop plate, an upper support ear and a lower support ear, the bottom plate is provided with a bottom plate through hole, the shaft, the stop plate and the upper support ear are respectively connected on both sides of the bottom plate, and the upper support ear and the lower support ear are located on the same side; the shaft is provided with a shaft through hole, the bottom plate through hole and the shaft through hole are connected, and the stop plate is provided at the edge of the bottom plate; the upper support ear is provided with an upper support ear through hole, and the lower support ear is provided with a lower support ear through hole; the fastening member is passed through the bottom plate through hole and the shaft through hole, and the two ends of the iron chain are respectively connected to the upper support ear through hole and the lower support ear through hole of the left bracket and the right bracket.

[0008] Further, the bottom plate is rectangular, the limiting plate is provided with a center through hole, and the fastening member is arranged in the through hole of the bottom plate, the through hole of the shaft part and the center through hole.

[0009] Further, the iron chains are respectively connected with the upper supporting lug through holes and the lower supporting lug through holes of the left support and the right support through shackles, the shackles are U-shaped structures, the shackles are respectively provided with shackle through holes, the end portions of the iron chains are connected in the U-shaped structures, and the shackle bolts pass through the upper supporting lug through holes, the lower supporting lug through holes and the shackle through holes.

[0010] Further, the through hole of the shaft part is located on the central axis of the shaft part.

[0011] Further, the shaft part, the rotation-stopping plate, the upper supporting lug and the lower supporting lug are connected on the bottom plate through welding.

[0012] The electric wheel mine self-unloading vehicle is provided with the suspension cylinder support on both sides of the maintenance door, and the left support and the right support are connected on the suspension cylinder support.

[0013] Preferably, the suspension cylinder support is provided with a support through hole, the left support and the right support are respectively arranged on the inner side of the suspension cylinder support, the bottom plate is in contact with the side surface of the suspension cylinder support, the shaft part is arranged in the support through hole, and the rotation-stopping plate is in contact with the rear plane of the suspension cylinder support.

[0014] Preferably, the limiting plate and the bottom plate are respectively arranged on both sides of the suspension cylinder support.

[0015] The technical effects of the utility model include:

[0016] According to the rear axle box maintenance door protection device, the structure is simple, the device is directly installed on the electric wheel mine self-unloading vehicle, the maintenance door can be effectively protected, and the maintenance door is prevented from being damaged.

[0017] In the rear axle box maintenance door protection device, the shackles and the supports are detachably connected, and the installation is simple and convenient, and the normal use of the maintenance door is not affected.

[0018] The rear axle box maintenance door protection device is directly installed and limited by using the suspension cylinder supports on both sides, and other fixing points do not need to be additionally arranged on the rear axle box, and the rear axle box is not affected.

[0019] The two iron chains connecting the two supports can effectively protect the area between the two suspension cylinder supports, reduce the risk of damage to the maintenance door, and effectively improve the safety. The two iron chains connecting the two supports are flexible structures, the height of the iron chain in front of the maintenance door can be reasonably controlled by appropriately adjusting the length of the iron chain, the iron chain can effectively block the rolling stones, and the protection of the maintenance door is realized. When the stones are blocked, the appropriate swing of the iron chain can reduce the impact force of the stones, and the stress on the two supports is reduced, and the reliability of the structure is ensured.

[0020] The maintenance door protection device has simple structure, is directly installed on the suspension cylinder support and has good structural reliability. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a lateral structure schematic diagram of an electric wheel mine dump truck in the prior art;

[0022] Figure 2 is an installation position schematic diagram of the rear axle box maintenance door protection device in the utility model;

[0023] Figure 3 is a front structure schematic diagram of the rear axle box maintenance door protection device in the utility model;

[0024] Figure 4 is Figure 2 an enlarged view of A in 6;

[0025] Figure 5 is Figure 2 an enlarged view of B in 6;

[0026] Figure 6 is a connection schematic diagram of the rear axle box maintenance door protection device and the suspension cylinder support in the utility model;

[0027] Figure 7 is an enlarged view of C in 6;

[0028] Figure 8 is a front structure schematic diagram of the right support in the utility model;

[0029] Figure 9 is a back structure schematic diagram of the right support in the utility model;

[0030] Figure 10 is a dumping schematic diagram of the electric wheel mine dump truck in the utility model.

[0031] REFERENCE SIGNS

[0032] 1 - electric wheel mine dump truck, 10 - vehicle frame, 11 - vehicle box, 12 - rear axle box, 121 - suspension cylinder support, 121a - support through hole, 121b - rear plane, 122 - maintenance door, 13 - suspension cylinder;

[0033] 2 - material pile;

[0034] 3 - rear axle box maintenance door protection device;

[0035] 30 - left support, 30a - bottom plate, 30b - shaft part, 30c - rotation stopping plate, 30d - upper supporting lug, 30e - lower supporting lug;

[0036] 31 - right bracket, 31a - bottom plate, 31a1 - bottom plate through hole, 31b - shaft part, 31b1 - shaft part through hole, 31c - rotation stop plate, 31d - upper lug, 31d1 - upper lug through hole, 31e - lower lug, 31e1 - lower lug through hole;

[0037] 32 - limiting plate;

[0038] 33 - fastening member (bolt, washer, nut);

[0039] 34 - shackle;

[0040] 35 - iron chain. DETAILED DESCRIPTION

[0041] The following description fully illustrates the specific embodiments of the present application to enable a person skilled in the art to practice and reproduce the same.

[0042] As shown in Figure 2 , it is the installation position schematic diagram of the rear axle housing access door protection device 3 of the present application; as shown in Figure 3 , it is the front structure schematic diagram of the rear axle housing access door protection device 3 of the present application.

[0043] The rear axle housing 12 rear side is provided with an access door 122, and the access door 122 two sides are provided with a suspension cylinder support 121, the upper part of the suspension cylinder 13 is hinged with the frame 10, and the lower part is hinged with the suspension cylinder support 121.

[0044] The rear axle housing access door protection device 3 is installed outside the access door 122, and the two ends are connected on the suspension cylinder support 121 respectively.

[0045] As shown in Figure 4 , it is the enlarged view of A in Figure 2 ; as shown in Figure 5 , it is the enlarged view of B in Figure 2 .

[0046] The rear axle housing access door protection device 3 comprises: a left bracket 30, a right bracket 31, a limiting plate 32, a fastening member 33, a shackle 34 and an iron chain 35; two limiting plates 32 are connected on the left bracket 30 and the right bracket 31 respectively by the fastening member 33, the left bracket 30 is connected on the suspension cylinder support 121 of the left side of the access door 122, the right bracket 31 is connected on the suspension cylinder support 121 of the right side of the access door 122, and the two ends of the iron chain 35 are connected on the left bracket 30 and the right bracket 31 of the two sides of the access door 122 respectively by the shackle 34.

[0047] As shown in Figure 6 , it is the connection schematic diagram of the rear axle housing access door protection device 3 and the suspension cylinder support 121 of the present application; as shown in Figure 7 , it is the enlarged view of C in 6.

[0048] The limiting plate 32 is a circular plate with a center through hole, which is arranged on the outer side of the suspension cylinder support 121, and the other side of the suspension cylinder support 121 opposite to the left support 30 and the right support 31.

[0049] The fastening member 33 (including: fastening bolts, fastening nuts) penetrates the through holes (including: the bottom plate through hole 31a1, the shaft part through hole 31b1) of the left support shaft part and the right support shaft part 31b, the center through hole of the limiting plate 32, and integrally fixes and connects the right support 31, the suspension cylinder support 121 and the limiting plate 32.

[0050] The shackle 34 is a U-shaped structure, and the end of the iron chain 35 is connected in the U-shaped structure, and the shackle bolt penetrates the lug through holes (including: the upper lug through hole 31d1, the lower lug through hole 31e1), the shackle through hole, and connects the shackle 34 with the left support 30 and the right support 31 respectively, and the two ends of the iron chain 35 are connected to the left support 30 and the right support 31.

[0051] The shackle 34 is rotatably connected with the upper lug 31d and the lower lug 31e of the right support 31 respectively. The iron chain 35 is provided with two, which are flexibly connected with the shackles 34 on the left and right sides respectively.

[0052] As shown in Figure 8 , it is the front structure schematic view of the right support 31 in the utility model; as shown in Figure 9 , it is the back structure schematic view of the right support 31 in the utility model.

[0053] The right support 31 includes: the rectangular bottom plate 31a, the shaft part 31b, the rotation-stopping plate 31c, the upper lug 31d and the lower lug 31e, the bottom plate 31a is provided with the bottom plate through hole 31a1, the shaft part 31b, the rotation-stopping plate 31c, the upper lug 31d are connected on both sides of the bottom plate 31a respectively, and the upper lug 31d and the lower lug 31e are located on the same side; the shaft part 31b is provided with the shaft part through hole 31b1, the bottom plate through hole 31a1 and the shaft part through hole 31b1 are communicated, and the rotation-stopping plate 31c is arranged at the edge of the bottom plate 31a; the upper lug 31d is provided with the upper lug through hole 31d1, and the lower lug 31e is provided with the lower lug through hole 31e1.

[0054] The shaft part through hole 31b1 is located on the central axis of the shaft part 31b.

[0055] The shaft part 31b, the rotation-stopping plate 31c, the upper lug 31d and the lower lug 31e are connected on the bottom plate 31a by welding.

[0056] The right support 31 is installed on the inner side of the suspension cylinder support 121, the bottom plate 31a is in contact with the side surface of the suspension cylinder support 121, the shaft part 31b penetrates into the support through hole 121a of the suspension cylinder support 121, and the anti-rotation plate 31c is in contact with the rear flat surface 121b of the suspension cylinder support 121.

[0057] When the right support 31 is installed on the suspension cylinder support 121 by means of the limiting plate 32 and the fastening member 33, the bottom plate 31a is in contact with the side surface of the suspension cylinder support 121, the shaft part 31b penetrates into the support through hole 121a of the suspension cylinder support 121, and the anti-rotation plate 31c is in contact with the rear flat surface 121b of the suspension cylinder support 121, so that the six degrees of freedom of the right support 31 are completely limited, and the right support 31 is completely fixed with the suspension cylinder support 121.

[0058] The left support 30 is opposite to the right support 31 in structure and position and is located on both sides of the maintenance door 122.

[0059] Correspondingly, the left support 30, the suspension cylinder support 121 and the limiting plate 32 are integrally fixedly connected.

[0060] As shown in Figure 10 Fig. 4, it is the unloading schematic view of the electric wheel mining self-unloading vehicle 1 in the utility model.

[0061] The protection method of the maintenance door 122 of the electric wheel mining self-unloading vehicle is specifically as follows:

[0062] 1. The right support 31 and the left support 30 are respectively installed on the suspension cylinder supports 121 on both sides of the maintenance door 122, the bottom plate 31a is in contact with the side surface of the suspension cylinder support 121, the shaft part 31b penetrates into the support through hole 121a, and the anti-rotation plate 31c is in contact with the rear flat surface 121b of the suspension cylinder support 121; the iron chains 35 are respectively connected with the lug through holes of the left support 30 and the right support 31 by means of the shackles 34 at both ends;

[0063] When the right support 31 is installed on the suspension cylinder support 121 by means of the limiting plate 32 and the fastening member 33, the six degrees of freedom of the right support 31 are completely limited, and the right support 31 is completely fixed with the suspension cylinder support 121.

[0064] 2. When the electric wheel mining self-unloading vehicle 1 needs to be unloaded, the vehicle is reversed until the rear wheel approaches the material pile 2, the lifting cylinder lifts the front part of the vehicle box 11, the rear part of the vehicle box 11 is pivoted at the upper part of the suspension cylinder 13, and the material falls from the vehicle box 2 to the material pile 2;

[0065] 3. When the material falls from the side slope of the material pile 2 to the access door 122, the iron chain 35 blocks the material to prevent the material from impacting the access door 122.

[0066] Because of the repose angle of the material, the side of the material pile 2 is always a slope, when the material in the car box 11 falls, the big stone or other block material will directly roll along the slope of the material pile, and then impact the rear axle box 12; the access door 122 is located at the middle position behind the rear axle box, and the probability of being impacted is greater; when the access door 122 is damaged and cannot be normally used, the rear axle box access door protection device 3 can effectively protect the access door 122, prevent the access door 122 from being damaged, and effectively solve the above problems.

[0067] The terms used in the utility model are illustrative and not restrictive terms. Since the utility model can be embodied in various forms without departing from the spirit or essence of the technical scheme, it should be understood that the above examples are not limited to any of the above details, but should be widely interpreted within the spirit and scope defined by the appended claims, and therefore all changes and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A rear axle box inspection door protection device, characterized in that: include: Left bracket, right bracket, fastening members and chains; The left bracket and the right bracket have the same structure and are positioned relative to each other, including: a base plate, a shaft, a stop plate, an upper support ear and a lower support ear. The base plate is provided with a base plate through hole, and the shaft, the stop plate and the upper support ear are respectively connected to both sides of the base plate, and the upper support ear and the lower support ear are located on the same side; the shaft is provided with a shaft through hole, the base plate through hole and the shaft through hole are connected, and the stop plate is provided at the edge of the base plate; the upper support ear is provided with an upper support ear through hole, and the lower support ear is provided with a lower support ear through hole; the fastening member is passed through the base plate through hole and the shaft through hole, and the two ends of the iron chain are respectively connected to the upper support ear through hole and the lower support ear through hole of the left bracket and the right bracket.

2. The rear axle box inspection door protection device according to claim 1, characterized in that: The bottom plate is rectangular, the limiting plate is provided with a central through hole, and the fastening component is passed through the bottom plate through hole, the shaft through hole, and the central through hole.

3. The rear axle box inspection door protection device according to claim 1, characterized in that: The two ends of the iron chain are connected to the upper ear through holes and lower ear through holes of the left bracket and the right bracket respectively through shackles. The shackle is a U-shaped structure with shackle through holes at both ends. The end of the iron chain is connected in the U-shaped structure, and the shackle bolt passes through the upper ear through hole, the lower ear through hole and the shackle through hole.

4. The rear axle box inspection door protection device according to claim 1, characterized in that: The shaft through hole is located on the central axis of the shaft.

5. The rear axle box inspection door protection device according to claim 1, characterized in that: The shaft, the anti-rotation plate, the upper support lug and the lower support lug are connected to the base plate by welding.

6. An electric wheel mining dump truck using the rear axle box inspection door protection device according to any one of claims 1 to 5, wherein suspension cylinder supports are respectively provided on both sides of the inspection door, characterized in that: The left bracket and the right bracket are respectively connected to the suspension cylinder support.

7. The electric wheel mining dump truck according to claim 6, characterized in that: The suspension cylinder support is provided with a support through hole, the left bracket and the right bracket are respectively installed on the inner side of the suspension cylinder support, the bottom plate contacts the side of the suspension cylinder support, the shaft is passed through the support through hole, and the anti-rotation plate contacts the rear plane of the suspension cylinder support.

8. The electric wheel mining dump truck according to claim 6, characterized in that: The limit plate and the bottom plate are respectively located on both sides of the suspension cylinder support.

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