Reinforced mine car wheel pair with high sealing performance

Abstract

The utility model discloses a reinforced mine car wheel set with high sealing performance, which comprises a wheel axle and two hubs, the hubs are mounted on the wheel axle through bearings, inner end covers are mounted on the inner sides of the hubs in a sealing manner, reinforcing rings are mounted in the hubs, reinforcing support rods are mounted on the periphery of the reinforcing rings, and the reinforcing support rods are mounted on the periphery of the reinforcing rings. The ends, away from the reinforcing circular ring, of the reinforcing supporting rods are fixedly connected with the inner ring of the hub, auxiliary bearings are installed in the reinforcing circular ring, limiting plates are installed on the periphery of the interior of the hub, a reinforcing sealing plate is arranged in the hub, limiting grooves are formed in the periphery of the inner side of the reinforcing sealing plate, and the limiting grooves are matched with the limiting plates. The mining wheel hub has the beneficial effects that the strength of the hub is increased, the hub is prevented from being bent to generate deformation, the use and maintenance cost is reduced, the service life of the hub is prolonged, the bearing capacity of the mining wheel pair is increased, the sealing effect is improved, abrasion and corrosion to the bearing and the auxiliary bearing are avoided, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of mine wheel sets, in particular to a reinforced mine wheel set with high sealing performance. Background Art

[0002] Special vehicles for mine rail transportation are compact in size to adapt to the narrow conditions of underground tunnels. They include trucks, manpower cars, material cars, etc. Mine cars are narrow-gauge railway transport vehicles for transporting bulk materials such as coal, ore and waste rock in mines. They are generally towed by locomotives or winches. Their main moving mechanism is the mine car wheel set installed at the bottom of the mine car in contact with the track. The mine car wheel set is mainly composed of wheels, shafts, bearings and sealing materials, and is one of the core structures of mine car transportation.

[0003] The utility model with application number CN202121058165.6 discloses a mine wheel set with high sealing performance. By setting a double-layer seal on the contact surface between the mine wheel set and the outer end cover and the inner end cover, and sealing between the oil seal and the wheel shaft, the wheel set bearing position is ensured to be relatively sealed from the outside world, and the axial hole and radial hole connected are respectively set through the shaft end and the outer side of the wheel shaft, so that the pressure difference generated by the heat generated by the mine wheel set bearing during operation is discharged from the axial hole and the radial hole.

[0004] The middle part of the wheel hub is hollow. During the use of the mine wheel set, the wheel hub is in contact with the track. After long-term use, the mine wheel set bears a large weight, and the contact position between the wheel hub and the track is prone to bending and deformation. The strength of the wheel hub is low, and the load-bearing capacity of the mine wheel set is low, which reduces the service life and increases the cost of use and maintenance.

[0005] It should be noted that the above contents belong to the technical knowledge of the inventor and do not necessarily constitute prior art. Utility Model Content

[0006] The utility model aims to solve the above problems and designs a reinforced mining wheel pair with high sealing performance.

[0007] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0008] A reinforced mining car wheel pair with high sealing performance comprises a wheel axle and two wheel hubs, wherein the two wheel hubs are mounted at both ends of the wheel axle, the wheel hubs are mounted on the wheel axle through bearings, an inner end cover is sealedly mounted on the inner side of the wheel hub, a reinforcing ring is mounted inside the wheel hub, reinforcing struts are mounted around the reinforcing ring, one end of the reinforcing struts away from the reinforcing ring is fixedly connected to the inner ring of the wheel hub, an auxiliary bearing is mounted inside the reinforcing ring, the inner ring of the auxiliary bearing is connected to the wheel axle, a limiting plate is mounted around the inside of the wheel hub, a reinforcing sealing plate is arranged inside the wheel hub, limiting grooves are arranged around the inner side of the reinforcing sealing plate, and the limiting grooves are matched with the limiting plates.

[0009] Furthermore, the reinforcing ring is connected to an oiling nozzle, the oiling nozzle is located between the bearing and the auxiliary bearing, an annular groove is provided at one end of the reinforcing ring, an O-ring is provided in the annular groove, and the inner side of the reinforcing sealing plate is tightly fitted with the O-ring.

[0010] Furthermore, an oil seal is installed between the inner end cover and the wheel axle, and the inner end cover is connected to the wheel hub through inner bolts.

[0011] Furthermore, the reinforcing struts, the limiting plates and the limiting grooves are each provided with six, and the reinforcing struts and the limiting grooves are staggered with each other.

[0012] Furthermore, the reinforced sealing plate is connected to the limiting plate by external bolts, and weight-reducing air holes are arranged around the reinforced sealing plate.

[0013] Compared with the prior art, this technical solution has the following beneficial effects:

[0014] The wheel hub is strengthened by reinforcing the ring, reinforcing the strut, limiting plate and reinforcing the sealing plate, thereby increasing the strength of the wheel hub, avoiding deformation caused by bending of the wheel hub, reducing the maintenance cost, increasing the service life of the wheel hub, and increasing the load-bearing capacity of the mine wheel set;

[0015] The reinforcing ring is sealed by a reinforcing sealing plate, and the wheel axle is sealed by an inner end cover and an oil seal. The reinforcing sealing plate fits tightly with the O-ring in the annular groove, thereby increasing the sealing effect of the reinforcing ring. Double-sided sealing is provided, thereby increasing the sealing effect of the bearing and auxiliary bearing, preventing dust and rain from entering the reinforcing ring, avoiding wear and corrosion on the bearing and auxiliary bearing, and increasing the service life.

[0016] By strengthening the weight-reducing air holes around the sealing plate, the weight of the strengthened sealing plate is reduced, and at the same time, heat dissipation of the strengthened ring is facilitated to avoid thermal wear during the temperature process of the bearing and the auxiliary bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1The utility model is a structural schematic diagram of a reinforced mining wheel set with high sealing performance.

[0018] Figure 2 This is an enlarged cross-sectional view of the wheel hub.

[0019] Figure 3 This is an enlarged front view of the wheel hub.

[0020] Figure 4 An enlarged front view of the reinforced sealing plate.

[0021] In the figure: 1. wheel axle; 2. wheel hub; 3. bearing; 4. inner end cover; 5. reinforcement ring; 6. reinforcement support rod; 7. auxiliary bearing; 8. limit plate; 9. reinforcement sealing plate; 10. limit groove; 11. oil filling nozzle; 12. annular groove; 13. O-ring; 14. oil seal; 15. inner bolt; 16. outer bolt; 17. weight-reducing ventilation hole. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0024] The utility model provides Figure 1-4A reinforced mining car wheel pair with high sealing performance shown in the figure comprises a wheel shaft 1 and two wheel hubs 2, the two wheel hubs 2 are mounted at both ends of the wheel shaft 1, the wheel hub 2 is mounted on the wheel shaft 1 through a bearing 3, an inner end cover 4 is installed on the inner side of the wheel hub 2 for sealing, a reinforcing ring 5 is installed inside the wheel hub 2, reinforcing struts 6 are installed around the reinforcing ring 5, one end of the reinforcing struts 6 away from the reinforcing ring 5 is fixedly connected to the inner ring of the wheel hub 2, an auxiliary bearing 7 is installed inside the reinforcing ring 5, the inner ring of the auxiliary bearing 7 is connected to the wheel shaft 1, a limiting plate 8 is installed around the inside of the wheel hub 2, a reinforcing sealing plate 9 is provided inside the wheel hub 2, limiting grooves 10 are provided around the inner side of the reinforcing sealing plate 9, and the limiting grooves 10 are consistent with the limiting plate 8,

[0025] The wheel hub 2 is docked with the track, and the wheel hub 2 rotates along the wheel shaft 1 and the reinforcing ring 5 through the bearing 3 and the auxiliary bearing 7. The wheel hub 2 is reinforced by the reinforcing ring 5, the reinforcing strut 6, the limit plate 8 and the reinforcing sealing plate 9, thereby increasing the strength of the wheel hub 2, preventing the wheel hub 2 from bending and deforming, reducing the use and maintenance costs, and increasing the service life of the wheel hub 2, and the reinforcing ring 5 is sealed by the reinforcing sealing plate 9.

[0026] Refer to the instruction manual Figure 2 And the instruction manual Figure 3 The reinforcing ring 5 is connected with an oiling nozzle 11, which is located between the bearing 3 and the auxiliary bearing 7. An annular groove 12 is provided at one end of the reinforcing ring 5, and an O-type sealing ring 13 is provided in the annular groove 12. The inner side of the reinforcing sealing plate 9 is tightly fitted with the O-type sealing ring 13.

[0027] Lubricating oil can be conveniently added to the bearing 3 and the auxiliary bearing 7 through the oiling nozzle 11, and the O-ring 13 in the reinforcing sealing plate 9 fits tightly with the annular groove 12, thereby increasing the sealing effect of the reinforcing ring 5, preventing dust and rain from entering the reinforcing ring 5, avoiding wear and corrosion on the bearing 3 and the auxiliary bearing 7, and increasing the service life.

[0028] Refer to the instruction manual Figure 2 An oil seal 14 is installed between the inner end cover 4 and the wheel shaft 1, and the inner end cover 4 is connected to the wheel hub 2 through an inner bolt 15.

[0029] The wheel shaft 1 is sealed by the inner end cover 4 and the oil seal 14 , and double-sided sealing is provided to increase the sealing effect on the bearing 3 . The inner end cover 4 can be easily disassembled and assembled through the inner bolt 15 , and the oil seal 14 can be easily replaced.

[0030] Refer to the instruction manual Figure 3 And the instruction manual Figure 4 , six reinforcing struts 6, six limiting plates 8 and six limiting grooves 10 are provided, and the reinforcing struts 6 and the limiting grooves 10 are staggered with each other.

[0031] The limiting groove 10 on the reinforcing sealing plate 9 is matched with the limiting plate 8, so that the reinforcing sealing plate 9 and the limiting plate 8 form a whole. The reinforcing sealing plate 9 and the limiting plate 8 increase the strength of the wheel hub 2, and the bearing capacity of the mine wheel pair is higher.

[0032] Refer to the instruction manual Figure 2 And the instruction manual Figure 4 The reinforcing sealing plate 9 is connected to the limiting plate 8 by an external bolt 16, and weight-reducing air holes 17 are arranged around the reinforcing sealing plate 9.

[0033] The external bolts 16 facilitate disassembly and assembly of the reinforced sealing plate 9, thereby improving work efficiency. The weight-reducing air holes 17 around the reinforced sealing plate 9 reduce the weight of the reinforced sealing plate 9, while facilitating heat dissipation of the reinforced ring 5, thereby avoiding thermal wear of the bearing 3 and the auxiliary bearing 7 during the temperature process.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A reinforced mining wheel pair with high sealing performance, comprising a wheel shaft (1) and two wheel hubs (2), wherein the two wheel hubs (2) are mounted at both ends of the wheel shaft (1), the wheel hubs (2) are mounted on the wheel shaft (1) via bearings (3), and an inner end cover (4) is sealed on the inner side of the wheel hub (2), characterized in that: A reinforcing ring (5) is installed inside the wheel hub (2), and reinforcing struts (6) are installed around the reinforcing ring (5), and one end of the reinforcing struts (6) away from the reinforcing ring (5) is fixedly connected to the inner ring of the wheel hub (2), and an auxiliary bearing (7) is installed inside the reinforcing ring (5), and the inner ring of the auxiliary bearing (7) is connected to the wheel axle (1), and a limiting plate (8) is installed around the inside of the wheel hub (2), and a reinforcing sealing plate (9) is provided inside the wheel hub (2), and limiting grooves (10) are provided around the inner side of the reinforcing sealing plate (9), and the limiting grooves (10) are matched with the limiting plates (8).

2. A reinforced mining wheel set with high sealing performance according to claim 1, characterized in that: The reinforcing ring (5) is connected to an oiling nozzle (11), and the oiling nozzle (11) is located between the bearing (3) and the auxiliary bearing (7). An annular groove (12) is provided at one end of the reinforcing ring (5), and an O-type sealing ring (13) is provided in the annular groove (12). The inner side of the reinforcing sealing plate (9) is tightly fitted with the O-type sealing ring (13).

3. A reinforced mining wheel set with high sealing performance according to claim 1, characterized in that: An oil seal (14) is installed between the inner end cover (4) and the wheel axle (1), and the inner end cover (4) is connected to the wheel hub (2) via an inner bolt (15).

4. A reinforced mining wheel set with high sealing performance according to claim 1, characterized in that: The reinforcing support rods (6), the limiting plates (8) and the limiting grooves (10) are each provided in six numbers, and the reinforcing support rods (6) and the limiting grooves (10) are staggered with each other.

5. A reinforced mining wheel set with high sealing performance according to claim 1, characterized in that: The reinforced sealing plate (9) is connected to the limiting plate (8) via external bolts (16), and weight-reducing air holes (17) are provided around the reinforced sealing plate (9).

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