Bogie assembly of mine car and mine car with bogie assembly
By designing a rotatable wheel pair and elastic compensation structure, the problem of mine wheel pair chewing rails is solved, extending the wheel pair life and protecting the track, achieving stable operation of mine trucks.
Patent Information
- Application Number
- CN202422182690.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-06
- Publication Date
- 2025-08-15
- Estimated Expiration
- 2034-09-06
AI Technical Summary
When mine trucks transport ore, wheel pairs are prone to gnawing the rails, resulting in damage to the rails, and the wheel pairs have a short service life.
Bogie assembly is designed, in which the wheel pair is rotatably arranged relative to the bogie, adopts a vertical rotation axis, and through the design of elastic members and mating blocks, the wheel pair can automatically compensate for rotation when the mine car turns, extend the wheel pair service life, and extend the bearing life through bearing box protection and temperature detector.
It extends the service life of the wheelset, avoids damage to the track, and improves the operating stability and safety of the mine truck.
Smart Images

Figure CN223224342U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of mining equipment, in particular to a bogie assembly of a mining car and also to a mining car with the bogie assembly. Background Art
[0002] A mine cart is a vehicle used to transport ore. When transporting ore using a mine cart, multiple carts are connected in series and pulled by a locomotive. The carts themselves are quite heavy, and their weight increases further when loaded with ore. Utility Model Content
[0003] The present invention aims to solve at least one of the technical problems in the related art to a certain extent. To this end, the present invention provides a bogie assembly for a mine car and a mine car having the bogie assembly.
[0004] The bogie assembly of the mining car of the present invention comprises: a bogie, the bogie comprising a side frame; and a wheelset, the wheelset comprising an axle, a wheel and a bearing box, the wheels being arranged on the axle, the axle being supported on the bearing box, and the bearing box being arranged on the side frame, wherein the wheelset is rotatably arranged relative to the bogie, and the rotation axis of the wheelset extends in the vertical direction.
[0005] The bogie assembly of the mining car of the utility model has the advantages of long service life of the wheelset and no damage to the track.
[0006] Optionally, the side frame includes an assembly hole, which has a first side wall surface and a second side wall surface opposite to each other in a preset direction, and the bearing box is arranged in the assembly hole, and the bearing box is located between the first side wall surface and the second side wall surface in the preset direction. The bogie assembly further includes: a first elastic member, which is arranged between the first side wall surface and the bearing box, and the first elastic member is adjacent to the wall surface of the assembly hole and each of the bearing boxes, or the first elastic member is in contact with the wall surface of the assembly hole and each of the bearing boxes; and a second elastic member, which is arranged between the second side wall surface and the bearing box, and the second elastic member is adjacent to the wall surface of the assembly hole and each of the bearing boxes, or the second elastic member is in contact with the wall surface of the assembly hole and each of the bearing boxes.
[0007] Optionally, the first elastic member is plate-shaped and inclined, and the upper end of the first elastic member is adjacent to the second side wall surface relative to the lower end of the first elastic member in the length direction of the vehicle body; the second elastic member is plate-shaped and inclined, and the upper end of the second elastic member is adjacent to the first side wall surface relative to the lower end of the second elastic member in the length direction of the vehicle body.
[0008] Optionally, the bearing box has a first inclined surface and a second inclined surface opposite to each other in the length direction of the car body, the first inclined surface contacts the first elastic member, the upper edge of the first inclined surface is adjacent to the second side wall surface relative to the lower edge of the first inclined surface in the length direction of the car body, the second inclined surface contacts the second elastic member, and the upper edge of the second inclined surface is adjacent to the first side wall surface relative to the lower edge of the second inclined surface in the length direction of the car body.
[0009] Optionally, the bogie assembly of the mining car further includes: a first mating block, the first mating block is provided on at least one of the first side wall surface and the top wall surface of the assembly hole, the first mating block has a third inclined surface, the third inclined surface contacts the first elastic member, and the upper edge of the third inclined surface is adjacent to the second side wall surface in the length direction of the car body relative to the lower edge of the third inclined surface; and a second mating block, the second mating block is provided on at least one of the second side wall surface and the top wall surface, the second mating block has a fourth inclined surface, the fourth inclined surface contacts the second elastic member, and the upper edge of the fourth inclined surface is adjacent to the first side wall surface in the length direction of the car body relative to the lower edge of the fourth inclined surface.
[0010] Optionally, the bearing box includes a box body and a bearing, the box body has a receiving cavity, the bearing is arranged in the receiving cavity so that the box body surrounds the bearing, and the shaft is supported on the bearing.
[0011] Optionally, the housing includes an upper housing and a lower housing, and the upper housing and the lower housing are detachably connected to surround the bearing.
[0012] Optionally, the box body is provided with a mounting through hole, which is connected to the accommodating cavity. The bogie assembly further includes a temperature detector for detecting the temperature of the bearing, and the temperature detector is provided in the mounting through hole and adjacent to the accommodating cavity.
[0013] The mining car of the present invention comprises: a carriage; and a bogie assembly, wherein the bogie assembly is the bogie assembly of the mining car of the present invention, and the bogie of the bogie assembly is arranged at the bottom of the carriage.
[0014] The mining car of the utility model has the advantages of long service life of the wheel set and no damage to the track.
[0015] Optionally, the mining car further includes a lost car detector, which includes: a wire, which is arranged on the car body, and the wire has a first end and a second end; a first connector, which is connected to the first end, and the first connector is one of a male connector and a female connector; and a second connector, which is connected to the second end, and the second connector is one of a male connector and a female connector, wherein the car body is located between the first connector and the first connector in its length direction. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 1 is a structural schematic diagram of a bogie assembly of a mine car according to an embodiment of the present utility model;
[0017] Figure 2 1 is a partial structural schematic diagram of a bogie assembly of a mine car according to an embodiment of the present utility model;
[0018] Figure 3 1 is a partial structural schematic diagram of a wheelset of a bogie assembly of a mining vehicle according to an embodiment of the present utility model;
[0019] Figure 4 It is a structural schematic diagram of a mine car according to an embodiment of the utility model;
[0020] Figure 5 yes Figure 4 A magnified view of area A in FIG;
[0021] Figure 6 yes Figure 4 Magnified view of area B in FIG. DETAILED DESCRIPTION
[0022] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.
[0023] The following describes the bogie assembly 100 of the mining vehicle 1000 according to an embodiment of the present invention with reference to the accompanying drawings. Figure 1-Figure 3 As shown, the bogie assembly 100 of the mining vehicle 1000 according to the embodiment of the present invention includes a bogie 2 and a wheelset 3 .
[0024] The bogie 2 includes a side frame 21. The wheelset 3 includes an axle 32, a wheel 33, and a bearing housing 31. The wheel 33 is mounted on the axle 32, which is supported by the bearing housing 31, which is mounted on the side frame 21. The wheelset 3 is rotatably mounted relative to the bogie 2, with the rotation axis of the wheelset 3 extending vertically. In other words, the wheelset 3 is rotatably mounted relative to the bogie 2.
[0025] According to the embodiment of the utility model, the bogie assembly 100 of the mine car 1000 is rotatably arranged so that the wheelset 3 is rotated relative to the bogie 2, so that when the mine car 1000 passes through a curved track (the mine car 1000 turns), the wheelset 3 is rotated around a vertically extending rotation axis to perform rotation compensation, thereby preventing the wheelset 3 from gnawing the rail and extending the service life of the wheelset 3 and the track.
[0026] Therefore, the bogie assembly 100 of the mining car 1000 according to the embodiment of the present invention has the advantages of long service life of the wheelset 3 and no damage to the track.
[0027] like Figure 1-Figure 3 As shown, the bogie assembly 100 of the mining vehicle 1000 includes a bogie 2 and a wheelset 3 .
[0028] The bogie 2 includes a bolster 24 and two side frames 21. The length direction of the bolster 24 is consistent with the width direction of the car body 200 of the mine car 1000. The bolster 24 has a first end and a second end opposite to each other in the length direction. A side frame 21 is provided at the first end of the bolster 24, and another side frame 21 is provided at the second end of the bolster 24.
[0029] The side frame 21 of the bogie 2 includes an assembly hole 22. Specifically, the side frame 21 of the bogie 2 is provided with the assembly hole 22. The assembly hole 22 has a first side wall surface 231 and a second side wall surface 232 that are opposed to each other in a predetermined direction. When the bogie 2 of the bogie assembly 100 is mounted on the bottom of the car body 200, the predetermined direction coincides with the longitudinal direction of the car body 200.
[0030] like Figure 1-Figure 3 As shown, the wheelset 3 includes an axle 32, two wheels 33, and two bearing housings 31. One end of the axle 32 is supported on one bearing housing 31, and the other end of the axle 32 is supported on the other bearing housing 31. The two wheels 33 are arranged on the axle 32 at intervals along the axial direction of the axle 32. Optionally, one wheel 33 is adjacent to one bearing housing 31 in the axial direction of the axle 32, and the other wheel 33 is adjacent to the other bearing housing 31 in the axial direction of the axle 32. The bearing housing 31 is arranged in the assembly hole 22, and is located between the first side wall surface 231 and the second side wall surface 232 in the longitudinal direction (preset direction) of the car body 200.
[0031] like Figure 1 and Figure 2As shown, the truck assembly 100 further includes a first elastic member 51 and a second elastic member 52. The first elastic member 51 is disposed between the first side wall 231 and the bearing housing 31. The first elastic member 51 is adjacent to the wall of the assembly hole 22 and the bearing housing 31, or the first elastic member 51 is in contact with the wall of the assembly hole 22 and the bearing housing 31. The second elastic member 52 is disposed between the second side wall 232 and the bearing housing 31. The second elastic member 52 is adjacent to the wall of the assembly hole 22 and the bearing housing 31, or the second elastic member 52 is in contact with the wall of the assembly hole 22 and the bearing housing 31.
[0032] By utilizing the compressibility of the first elastic member 51 and the second elastic member 52, the wheelset 3 can be rotated more easily around the vertically extending rotation axis, and the wheelset 3 can be automatically reset after the mine car 1000 passes through the curved track (after the mine car 1000 turns).
[0033] like Figure 1 and Figure 2 As shown, the first elastic member 51 is plate-shaped and arranged at an angle. The upper end 511 of the first elastic member 51 is adjacent to the second side wall surface 232 relative to the lower end 512 of the first elastic member 51 in the longitudinal direction of the car body 200. The second elastic member 52 is plate-shaped and arranged at an angle. The upper end 521 of the second elastic member 52 is adjacent to the first side wall surface 231 relative to the lower end 522 of the second elastic member 52 in the longitudinal direction of the car body 200. This makes the structures of the bogie assembly 100 and the mining car 1000 more reasonable.
[0034] For example, the first elastic member 51 is located in front of the second elastic member 52, the upper end 511 of the first elastic member 51 is located behind the lower end 512 of the first elastic member 51, and the upper end 521 of the second elastic member 52 is located in front of the lower end 522 of the second elastic member 52. Figure 4 As shown by the arrow C in the figure, the up and down directions are as follows Figure 2 and Figure 4 As shown by arrow D in FIG.
[0035] like Figure 1 and Figure 2 As shown, the bearing housing 31 has a first inclined surface 311 and a second inclined surface 312 that are opposed to each other in the longitudinal direction of the carriage 200. The first inclined surface 311 contacts the first elastic member 51, and an upper edge 3111 of the first inclined surface 311 is adjacent to the second side wall surface 232 in the longitudinal direction of the carriage 200, opposite to a lower edge 3112 of the first inclined surface 311. The second inclined surface 312 contacts the second elastic member 52, and an upper edge 3121 of the second inclined surface 312 is adjacent to the first side wall surface 231 in the longitudinal direction of the carriage 200, opposite to a lower edge 3122 of the second inclined surface 312.
[0036] In this way, the inclination direction of the first inclined surface 311 can be consistent with the inclination direction of the first elastic member 51, and the inclination direction of the second inclined surface 312 can be consistent with the inclination direction of the second elastic member 52, so that the bearing box 31 can be more firmly matched with the first elastic member 51 and the second elastic member 52, so that the wheelset 3 can rotate more stably around the vertically extending rotation axis and automatically reset more stably.
[0037] like Figure 1 and Figure 2 As shown, the truck assembly 100 further includes a first mating block 6 and a second mating block 7. The first mating block 6 is disposed on at least one of the first side wall 231 and the top wall 233 of the assembly hole 22. The first mating block 6 has a third inclined surface 61 that contacts the first elastic member 51. An upper edge 611 of the third inclined surface 61 is adjacent to the second side wall 232 in the longitudinal direction of the car body 200, relative to a lower edge 612 of the third inclined surface 61.
[0038] The second engaging block 7 is disposed on at least one of the second side wall 232 and the top wall 233. The second engaging block 7 has a fourth inclined surface 71 that contacts the second elastic member 52. An upper edge 711 of the fourth inclined surface 71 is adjacent to the first side wall 231 in the longitudinal direction of the vehicle body 200, relative to a lower edge 712 of the fourth inclined surface 71.
[0039] That is, the first elastic member 51 contacts and engages with the wall surface of the assembly hole 22 via the first mating block 6, and the second elastic member 52 contacts and engages with the wall surface of the assembly hole 22 via the second mating block 7. This ensures that the inclination direction of the third inclined surface 61 is consistent with that of the first elastic member 51, and the inclination direction of the fourth inclined surface 71 is consistent with that of the second elastic member 52. This allows the first and second elastic members 51, 52 to more firmly engage with the sideframe 21 of the bogie 2, allowing the wheelset 3 to more stably rotate about the vertically extending rotation axis and more stably automatically reset.
[0040] like Figure 3 As shown, bearing housing 31 includes housing 313 and bearing 315, with shaft 32 supported on bearing 315. Housing 313 has a receiving cavity 314, and bearing 315 is disposed within receiving cavity 314 such that housing 313 surrounds bearing 315. By having housing 313 surround bearing 315, bearing housing 311 can protect bearing 315, thereby extending the service life of bearing 315 and bearing housing 31.
[0041] Those skilled in the art will appreciate that the wall of the accommodating cavity 314 is provided with a through hole for passing the shaft 32 .
[0042] Optionally, the housing 313 includes an upper housing 3131 and a lower housing 3132, and the upper housing 3131 and the lower housing 3132 are detachably connected to surround the bearing 315. This can make the structures of the housing 313 and the bearing housing 31 more reasonable.
[0043] like Figure 3 As shown, bogie assembly 100 further includes a temperature sensor 4 for detecting the temperature of bearing 315. Housing 313 is provided with a mounting hole 316, which communicates with accommodating cavity 314. Temperature sensor 4 is disposed within mounting hole 316, adjacent to accommodating cavity 314, to improve detection accuracy.
[0044] By arranging a temperature detector 4 for detecting the temperature of the bearing 315 on the box body 313, damage to the roller of the bearing 315 due to dry burning due to lack of lubricating oil can be avoided, so as to reduce the maintenance workload and detection workload of the bearing box 31, extend the service life of the bearing 315, and avoid accidents.
[0045] The present invention further provides a mining car 1000. The mining car 1000 according to an embodiment of the present invention comprises a carriage 200 and a bogie assembly 100. The bogie 2 of the bogie assembly 100 is provided at the bottom of the carriage 200.
[0046] Accordingly, the mining car 1000 according to the embodiment of the present invention has the advantages of long service life of the wheelset 3 and no damage to the track.
[0047] like Figure 4-Figure 6 As shown, the mining car 1000 further includes a lost vehicle detector, which includes a wire 81, a first connector 82, and a second connector 83. The wire 81 is provided on the car 200 and has a first end 811 and a second end 812. The first connector 82 is connected to the first end 811, and the second connector 83 is connected to the second end 812. The first connector 82 is either a male connector or a female connector, and the second connector 83 is either a male connector or a female connector. The car 200 is located between the first connector 82 and the second connector 82 in its longitudinal direction.
[0048] The first connector 82 of one of the two adjacent mine carts 1000 is connected to the second connector 83 of the other of the two adjacent mine carts 1000. In other words, the first connector 82 of one of the two adjacent mine carts 1000 is a male connector (female connector), and the second connector 83 of the other of the two adjacent mine carts 1000 is a female connector (male connector).
[0049] When the couplers of two adjacent mine cars 1000 are disconnected, the distance between the two adjacent mine cars 1000 will continue to increase, causing the first connectors 82 and the second connectors 83 of the two adjacent mine cars 1000 to disconnect. Therefore, the lost car detector can detect whether a mine car 1000 has been lost due to the disconnection of the first coupler 31 and the second coupler 32.
[0050] Optionally, the mining car 1000 further includes a protective tube 84, which is provided on the outer surface of the car body 200, and at least a portion of the wire 81 is located within the protective tube 84. This prevents damage to the wire 81, thereby extending the service life of the lost vehicle detector and improving the detection accuracy of the lost vehicle detector.
[0051] like Figure 4-Figure 6 As shown, the protective tube 84 includes a main tube 841, a first front short tube 842, a first rear short tube 843, a second front short tube 844, and a second rear short tube 845. The main tube 841 is provided on the outer surface of the carriage 200 and extends in the front-to-back direction. The longitudinal direction of the carriage 200 may be consistent with the front-to-back direction.
[0052] Each of the first front short tube 842 and the first rear short tube 843 extends along the width direction of the car body 200. One end of the first front short tube 842 is connected to the front end of the main tube 841, and the first front short tube 842 extends from the main tube 841 in a direction adjacent to the front coupler 210 along the width direction of the car body 200. One end of the first rear short tube 843 is connected to the rear end of the main tube 841, and the first rear short tube 843 extends from the main tube 841 in a direction adjacent to the rear coupler 220 along the width direction of the car body 200.
[0053] Each of the second front short tube 844 and the second rear short tube 845 extends in the front-to-back direction. The rear end of the second front short tube 844 is connected to the other end of the first front short tube 842, and the front end of the second rear short tube 845 is connected to the other end of the first rear short tube 843. The first end 811 of the wire 81 extends forward from the second front short tube 844, and the second end 812 of the wire 81 extends rearward from the second rear short tube 845.
[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention 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, and therefore should not be understood as a limitation to the present invention.
[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0056] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.
[0057] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0058] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.
[0059] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.
Claims
1. A bogie assembly for a mine car, characterized in that: include: a bogie, the bogie including a sideframe; and A wheelset comprising an axle, a wheel and a bearing box, wherein the wheel is arranged on the axle, the axle is supported on the bearing box, and the bearing box is arranged on the side frame, wherein the wheelset is rotatably arranged relative to the bogie, and the rotation axis of the wheelset extends in the vertical direction.
2. The bogie assembly of a mining vehicle according to claim 1, characterized in that: The side frame includes an assembly hole, the assembly hole having a first side wall surface and a second side wall surface that are opposite to each other in a preset direction, the bearing box is disposed in the assembly hole, and the bearing box is located between the first side wall surface and the second side wall surface in the preset direction, and the bogie assembly further includes: a first elastic member disposed between the first side wall and the bearing housing, the first elastic member being adjacent to or in contact with the wall of the assembly hole and the bearing housing; and A second elastic member, the second elastic member is arranged between the second side wall and the bearing box, the second elastic member is adjacent to the wall of the assembly hole and each of the bearing box or the second elastic member is in contact with the wall of the assembly hole and each of the bearing box.
3. The bogie assembly of a mining vehicle according to claim 2, wherein: The first elastic member is plate-shaped and is arranged obliquely, and the upper end of the first elastic member is adjacent to the second side wall surface relative to the lower end of the first elastic member in the longitudinal direction of the carriage of the mining vehicle; The second elastic member is plate-shaped and is arranged obliquely. The upper end portion of the second elastic member is adjacent to the first side wall surface relative to the lower end portion of the second elastic member in the longitudinal direction of the vehicle compartment.
4. The bogie assembly of a mining vehicle according to claim 3, wherein: The bearing housing has a first inclined surface and a second inclined surface that are opposite to each other in the longitudinal direction of the carriage. The first inclined surface contacts the first elastic member, and the upper edge of the first inclined surface is adjacent to the second side wall surface relative to the lower edge of the first inclined surface in the longitudinal direction of the vehicle compartment. The second inclined surface contacts the second elastic member, and an upper edge of the second inclined surface is adjacent to the first side wall surface relative to a lower edge of the second inclined surface in the longitudinal direction of the vehicle compartment.
5. The bogie assembly of a mining vehicle according to claim 3 or 4, characterized in that: Further including: a first mating block provided on at least one of the first side wall and the top wall of the assembly hole, the first mating block having a third inclined surface, the third inclined surface in contact with the first elastic member, an upper edge of the third inclined surface adjacent to the second side wall in the longitudinal direction of the carriage relative to a lower edge of the third inclined surface; and A second mating block, the second mating block is arranged on at least one of the second side wall surface and the top wall surface, the second mating block has a fourth inclined surface, the fourth inclined surface contacts the second elastic member, and the upper edge of the fourth inclined surface is adjacent to the first side wall surface relative to the lower edge of the fourth inclined surface in the length direction of the carriage.
6. The bogie assembly of a mining vehicle according to claim 1, wherein: The bearing box includes a box body and a bearing. The box body has an accommodating cavity. The bearing is arranged in the accommodating cavity so that the box body surrounds the bearing. The shaft is supported on the bearing.
7. The bogie assembly of a mining vehicle according to claim 6, wherein: The housing includes an upper housing and a lower housing, and the upper housing and the lower housing are detachably connected to surround the bearing.
8. The bogie assembly of a mining vehicle according to claim 6, wherein: The box body is provided with a mounting through hole, which is communicated with the accommodating cavity. The bogie assembly further includes a temperature detector for detecting the temperature of the bearing. The temperature detector is provided in the mounting through hole and is adjacent to the accommodating cavity.
9. A mining car, characterized in that: include: car; and A bogie assembly, wherein the bogie assembly is a bogie assembly of a mining car according to any one of claims 1 to 8, and the bogie of the bogie assembly is arranged at the bottom of the car.
10. The mining vehicle according to claim 9, characterized in that: The device further includes a lost vehicle detector, the lost vehicle detector including: A wire, the wire being provided on the carriage, the wire having a first end and a second end; a first connector connected to the first end, the first connector being one of a male connector and a female connector; and A second connector is connected to the second end, the second connector is one of a male connector and a female connector, wherein the carriage is located between the first connector and the first connector in the length direction thereof.