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

Abstract

The invention discloses a rear axle box access door protection device, an electric wheel mining dump truck and a protection method.The rear axle box access door protection device comprises a left support, a right support, 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 invention belongs to the field of electric wheel mining dump trucks, and in particular relates to a rear axle box inspection door protection device, an electric wheel mining dump truck and a protection method. Background Art

[0002] like Figure 1 The figure shows 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 box 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 box 11 is located above the frame 10. Wheel motors and tires are 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 box 11, and the two ends of the suspension cylinder 13 are respectively hinged to the car box 11 and the rear axle box 12. A lifting cylinder is hinged at the lower front of the car box 11, and the rear 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 box 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 pipelines, brakes and other components connected to 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, but when the dump truck lifts the car box to unload, stones or large pieces of minerals often roll down from the material pile, and 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 then affecting the normal use of the dump truck. Summary of the invention

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

[0006] To achieve the above purpose, the technical solution used in the present invention is:

[0007] The rear axle box maintenance door protection device comprises: 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 located, and comprise: 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 to 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 and 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] Furthermore, the bottom plate is rectangular, the limiting plate is provided with a central through hole, and the fastening member is inserted into the bottom plate through hole, the shaft through hole, and the central through hole.

[0009] Furthermore, 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.

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

[0011] Furthermore, the shaft portion, the anti-rotation plate, the upper support lug and the lower support lug are connected to the bottom plate by welding.

[0012] An electric wheel mining dump truck has suspension cylinder supports on both sides of the inspection door, and a left support and a right support are respectively connected to the suspension cylinder supports.

[0013] Preferably, the suspension cylinder support is provided with a support through hole, 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 surface 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.

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

[0015] Protection methods for access doors include:

[0016] When the electric wheel mining dump truck needs to unload materials, it reverses until the rear wheel approaches the material pile, the lifting cylinder lifts up the front of the car box, and the rear of the car box uses the upper part of the suspension cylinder as a fulcrum, and the materials slide from the car box to the material pile;

[0017] When materials roll down the side slope of the material pile to the inspection door, the iron chain blocks the materials to prevent them from impacting the inspection door.

[0018] Preferably, the right bracket and the left bracket are respectively installed on the suspension cylinder supports on both sides of the inspection door, the bottom plate contacts the side of the suspension cylinder support, the shaft passes through the support through hole, the anti-rotation plate contacts the rear plane of the suspension cylinder support, and the two ends of the iron chain are respectively connected to the support ear through holes of the left bracket and the right bracket by using shackles.

[0019] The technical effects of the present invention include:

[0020] The rear axle box inspection door protection device according to the above scheme has a simple structure and can be directly installed on the electric wheel mining dump truck, which can effectively protect the inspection door and prevent the inspection door from being damaged.

[0021] In the rear axle box inspection door protection device, the connection between the shackle and the bracket is removable and easy to install, and will not affect the normal use of the inspection door.

[0022] The rear axle box inspection door protection device is directly installed and limited by the suspension cylinder supports on both sides, and does not require additional fixing points on the rear axle box, so it has no effect on the rear axle box.

[0023] The two iron chains connecting the brackets on both sides can effectively protect the area between the suspension cylinder supports on both sides, reduce the risk of damage to the inspection door, and effectively improve safety. The two iron chains connecting the brackets on both sides are flexible structures. By properly adjusting the length of the iron chains, the height of the iron chains directly behind the inspection door can be reasonably controlled, thereby effectively blocking the rolling stones and protecting the inspection door. When blocking the impact of stones, the moderate swing of the iron chains can reduce the impact force of the stones, thereby reducing the force on the brackets on both sides and ensuring the reliability of the structure.

[0024] The inspection door protection device has a simple structure and is directly installed on the suspension cylinder support, with good structural reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the lateral structure of an electric wheel mining dump truck in the prior art;

[0026] Figure 2 It is a schematic diagram of the installation position of the rear axle box inspection door protection device in the present invention;

[0027] Figure 3 It is a front structural schematic diagram of the rear axle box inspection door protection device of the present invention;

[0028] Figure 4 yes Figure 2 The enlarged view of point A in the middle;

[0029] Figure 5 yes Figure 2 The enlarged view of point B in the middle;

[0030] Figure 6 It is a schematic diagram of the connection between the rear axle box inspection door protection device and the suspension cylinder support in the present invention;

[0031] Figure 7 This is an enlarged view of point C in 6;

[0032] Figure 8 It is a front structural schematic diagram of the right bracket in the present invention;

[0033] Fig. 9 It is a schematic diagram of the back structure of the right bracket in the present invention;

[0034] Fig.10 It is a schematic diagram of unloading of the electric wheel mining dump truck in the present invention.

[0035] Description of Reference Numerals

[0036] 1-electric wheel mining dump truck, 10-frame, 11-carriage box, 12-rear axle box, 121-suspension cylinder support, 121a-support through hole, 121b-rear plane, 122-inspection door, 13-suspension cylinder;

[0037] 2-Stockpile;

[0038] 3-Rear axle box inspection door protection device;

[0039] 30-left bracket, 30a-bottom plate, 30b-shaft, 30c-rotation stop plate, 30d-upper support ear, 30e-lower support ear;

[0040] 31-right bracket, 31a-bottom plate, 31a1-bottom plate through hole, 31b-shaft, 31b1-shaft through hole, 31c-rotation stop plate, 31d-upper support ear, 31d1-upper support ear through hole, 31e-lower support ear, 31e1-lower support ear through hole;

[0041] 32-limiting plate;

[0042] 33- Fastening components (bolts, washers, nuts);

[0043] 34-Shackle;

[0044] 35-Iron chain. DETAILED DESCRIPTION

[0045] The following description sufficiently illustrates specific embodiments of the invention to enable those skilled in the art to practice and reproduce the invention.

[0046] like Figure 2 As shown, it is a schematic diagram of the installation position of the rear axle box maintenance door protection device 3 in the present invention; Figure 3 The figure shows a front structural diagram of the rear axle box inspection door protection device 3 of the present invention.

[0047] An inspection door 122 is provided at the rear side of the rear axle box 12 , and suspension cylinder supports 121 are provided on both sides of the inspection door 122 . The upper portion of the suspension cylinder 13 is hinged to the vehicle frame 10 , and the lower portion is hinged to the suspension cylinder supports 121 .

[0048] The rear axle box inspection door protection device 3 is installed on the outside of the inspection door 122, and its two ends are respectively connected to the suspension cylinder support 121.

[0049] like Figure 4 As shown, Figure 2 The enlarged view of A in the middle; Figure 5 As shown, Figure 2 Enlarged view of point B in the middle.

[0050] The rear axle box inspection door protection device 3 includes: a left bracket 30, a right bracket 31, a limit plate 32, a fastening member 33, a shackle 34 and an iron chain 35; the two limit plates 32 are respectively connected to the left bracket 30 and the right bracket 31 by means of the fastening member 33, the left bracket 30 is connected to the suspension cylinder support 121 on the left side of the inspection door 122, the right bracket 31 is connected to the suspension cylinder support 121 on the right side of the inspection door 122, and the two ends of the iron chain 35 are respectively connected to the left bracket 30 and the right bracket 31 on both sides of the inspection door 122 by means of the shackle 34.

[0051] like Figure 6 As shown, it is a schematic diagram of the connection between the rear axle box inspection door protection device 3 and the suspension cylinder support 121 in the present invention; Figure 7 The figure shown is an enlarged view of point C in 6.

[0052] The limiting plate 32 is a circular plate with a central through hole, which is arranged on the outer side of the suspension cylinder support 121 , on the other side of the suspension cylinder support 121 opposite to the left bracket 30 and the right bracket 31 .

[0053] The fastening member 33 (including: fastening bolts, fastening nuts) passes through the through holes of the left bracket shaft, the right bracket shaft 31b (including: the bottom plate through hole 31a1, the shaft through hole 31b1), and the central through hole of the limit plate 32, and fixes the right bracket 31, the suspension cylinder support 121, and the limit plate 32 together.

[0054] The shackle 34 is a U-shaped structure with shackle through holes at both ends. The end of the iron chain 35 is connected to the U-shaped structure. The shackle bolt passes through the support ear through holes (including: upper support ear through hole 31d1, lower support ear through hole 31e1) and the shackle through holes to connect the shackle 34 to the left bracket 30 and the right bracket 31 respectively. The two ends of the iron chain 35 are connected to the left bracket 30 and the right bracket 31.

[0055] The shackle 34 is rotatably connected to the upper lug 31d and the lower lug 31e of the right bracket 31. Two iron chains 35 are provided, which are flexibly connected to the shackles 34 on the left and right sides.

[0056] like Figure 8 As shown, it is a front structural schematic diagram of the right bracket 31 in the present invention; Fig. 9 , which is a schematic diagram of the back structure of the right bracket 31 in the present invention.

[0057] The right bracket 31 includes: a rectangular bottom plate 31a, a shaft 31b, a stop plate 31c, an upper ear 31d and a lower ear 31e. The bottom plate 31a is provided with a bottom plate through hole 31a1. The shaft 31b, the stop plate 31c and the upper ear 31d are respectively connected to both sides of the bottom plate 31a. The upper ear 31d and the lower ear 31e are located on the same side. The shaft 31b is provided with a shaft through hole 31b1. The bottom plate through hole 31a1 and the shaft through hole 31b1 are connected. The stop plate 31c is provided at the edge of the bottom plate 31a. The upper ear 31d is provided with an upper ear through hole 31d1, and the lower ear 31e is provided with a lower ear through hole 31e1.

[0058] The shaft through hole 31 b 1 is located on the central axis of the shaft 31 b .

[0059] The shaft portion 31b, the anti-rotation plate 31c, the upper lug 31d and the lower lug 31e are connected to the bottom plate 31a by welding.

[0060] The suspension cylinder support 121 is provided with a support through hole 121a, and the right bracket 31 is installed on the inner side of the suspension cylinder support 121, its bottom plate 31a contacts the side surface of the suspension cylinder support 121, its shaft portion 31b penetrates into the support through hole 121a of the suspension cylinder support 121, and its anti-rotation plate 31c contacts the rear plane 121b of the suspension cylinder support 121.

[0061] When the right bracket 31 is installed on the cylinder support 121 with the help of the limiting plate 32 and the fastening member 33, the bottom plate 31a contacts the side of the cylinder support 121, the shaft 31b penetrates into the support through hole 121a of the cylinder support 121, and the anti-rotation plate 31c contacts the rear side plane 121b of the cylinder support 121, which completely restricts the six degrees of freedom of the right bracket 31 and completely fixes the right bracket 31 to the cylinder support 121.

[0062] The left bracket 30 and the right bracket 31 have the same structure and are opposite to each other, and are located on both sides of the inspection door 122. The left bracket 30 also includes: a rectangular bottom plate 30a, a shaft portion 30b, a rotation stop plate 30c, an upper support ear 30d and a lower support ear 30e.

[0063] Correspondingly, the left bracket 30, the suspension cylinder support 121 and the limit plate 32 are also integrally fixedly connected. The upper support ear 30d and the lower support ear 30e of the left bracket 30 are also connected with a shackle 34.

[0064] like Fig.10 , which is a schematic diagram of unloading of the electric wheel mining dump truck 1 in the present invention.

[0065] The protection method of the inspection door 122 of the electric wheel mining dump truck is as follows:

[0066] 1. The right bracket 31 and the left bracket 30 are respectively installed on the suspension cylinder support 121 on both sides of the inspection door 122, the bottom plate 31a contacts the side of the suspension cylinder support 121, the shaft portion 31b penetrates into the support through hole 121a, and the anti-rotation plate 31c contacts the rear side plane 121b of the suspension cylinder support 121; the two ends of the iron chain 35 are respectively connected to the support ear through holes of the left bracket 30 and the right bracket 31 by using shackles 34;

[0067] When the right bracket 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 bracket 31 are completely restricted, so that the right bracket 31 and the suspension cylinder support 121 are completely fixed.

[0068] 2. When the electric wheel mining dump truck 1 needs to unload materials, it reverses until the rear wheel approaches the material pile 2, and the lifting cylinder lifts up the front of the car box 11. The rear of the car box 11 uses the upper part of the suspension cylinder 13 as a fulcrum, and the materials slide from the car box 2 to the material pile 2;

[0069] 3. When materials roll down from the side slope of the material pile 2 to the inspection door 122 , the iron chain 35 blocks the materials to prevent the materials from impacting the inspection door 122 .

[0070] Since the material has an angle of repose, the side of the material pile 2 is always a slope. When the material in the car box 11 falls, large stones or other block materials will directly roll down the slope of the material pile, and then cause a collision with the rear axle box 12; the inspection door 122 is located in the middle position behind the rear axle box, and the probability of being hit is greater. When the inspection door 122 is damaged and cannot be used normally, the rear axle box inspection door protection device 3 can effectively protect the inspection door 122 and prevent the inspection door 122 from being damaged, thereby effectively solving the above problem.

[0071] The terms used in the present invention are illustrative and exemplary, rather than restrictive. Since the present invention can be implemented in various forms without departing from the spirit or essence of the technical solution, it should be understood that the above embodiments are not limited to any of the aforementioned details, but should be widely interpreted within the spirit and scope defined by the attached claims, so all changes and modifications falling within the scope of the claims or their equivalents should be covered by the attached 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 relatively located, comprising: 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 to 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.

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 inserted 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 through shackles respectively. 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 ear and the lower support ear are connected to the bottom 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 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 surface 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.

9. The method for protecting an access door according to claim 6, characterized in that: include: When the electric wheel mining dump truck needs to unload materials, it reverses until the rear wheel approaches the material pile, the lifting cylinder lifts up the front of the car box, and the rear of the car box uses the upper part of the suspension cylinder as a fulcrum, and the materials slide from the car box to the material pile; When materials roll down the side slope of the material pile to the inspection door, the iron chain blocks the materials to prevent them from impacting the inspection door.

10. The protection method according to claim 9, characterized in that: The right bracket and the left bracket are respectively installed on the suspension cylinder supports on both sides of the inspection door, the bottom plate contacts the side of the suspension cylinder support, the shaft passes through the through hole of the support, the anti-rotation plate contacts the rear plane of the suspension cylinder support, and the two ends of the iron chain are respectively connected to the support ear through holes of the left bracket and the right bracket by using shackles.

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