Hub unit with fault early warning function

Abstract

The invention discloses a fault early warning hub unit, and relates to the field of railway vehicle body parts, the fault early warning hub unit comprises a rim and spokes, the inner wall of the rim is provided with a plurality of positioning blocks along the circumference, the two ends of each positioning block are provided with contact switches, the contact switches abut against each other, the side walls of the spokes are rotatably connected with air deflectors, and the air deflectors are rotatably connected with the spokes. A hydraulic mechanism is movably connected between the air guide plate and the spokes, a mounting groove is formed in the middle connecting part of the spokes, an oil storage shell is arranged in the mounting groove, the hydraulic mechanism is communicated with the oil storage shell, and the oil storage shell is filled with hydraulic oil. Monitoring of deformation of the whole hub unit is achieved through the circle of positioning blocks on the rim, when the rim deforms, the positioning blocks can be relieved from the abutting state, the contact switch is turned on, the positioning blocks are powered on, a vehicle owner is reminded that the position is deformed, and the early warning and monitoring effect of the hub unit on hub deformation is effectively improved.

Description

Technical Field

[0001] The invention relates to the field of railway vehicle body parts, in particular to a hub unit with fault early warning. Background Art

[0002] In railway operation, the safety and efficient operation of vehicles are of vital importance, and the wheel hub bearing unit, as one of the core components of railway vehicles, plays an irreplaceable role. It not only bears the huge weight of the vehicle, but also provides precise guidance for the smooth rotation of the wheels to ensure the safety and stability of the train during high-speed driving. This requires the wheel hub bearing unit to have a strong load-bearing capacity and be able to withstand complex axial and radial loads at the same time.

[0003] Existing railway vehicle hub units not only play a supporting role, but are also equipped with sensors to detect the tire pressure and hub temperature of the railway vehicle tires. However, when the hub unit is deformed, the deformation of the hub unit is often not particularly obvious and difficult to detect directly with the naked eye. Continuing to drive with a deformed wheel roller will cause vehicle driving instability and reduce tire life.

[0004] Therefore, the existing hub has insufficient fault warning monitoring for deformation, and can only be successfully discovered when obvious faults occur later, which will have an adverse effect on the normal driving of railway vehicles. Summary of the invention

[0005] Based on this, the purpose of the present invention is to provide a hub unit with fault warning to solve the technical problem of insufficient fault warning monitoring capability of general hubs.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a hub unit with fault warning, comprising a rim and spokes, the inner wall of the rim is provided with a plurality of positioning blocks along the circumference, both ends of each positioning block are provided with contact switches, and the contact switches abut against each other, the side wall of the spoke is rotatably connected with an air guide plate, a hydraulic mechanism is movably connected between the air guide plate and the spoke, an installation groove is provided at the middle connecting portion of the spoke, an oil storage shell is provided inside the installation groove, the hydraulic mechanism is connected to the oil storage shell, and the interior of the oil storage shell is filled with hydraulic oil.

[0007] The present invention is further configured such that a plurality of fixing grooves are provided on the outer wall of the oil storage shell, a rubber block is provided on the inner wall of the fixing groove, and a groove is provided on the inner wall of the installation groove.

[0008] The present invention is further configured such that a plurality of oil outlets are provided on the outer wall of the oil storage shell, the oil outlets are provided with connecting pipes, and one end of the connecting pipes is connected to the oil inlet of the hydraulic mechanism.

[0009] The present invention is further configured such that the hydraulic mechanism includes a cylinder body, a movable column, a spring and a rotating seat, the inner wall of the cylinder body is provided with a spring, one end of the spring is connected to the movable column, one end of the movable column is rotatably connected to the air guide plate through the rotating seat, and the cylinder body is rotatably connected to the spokes through the rotating seat.

[0010] The present invention is further configured such that a light bar is installed on the outer surface of the positioning block, a micro battery is installed inside the positioning block, and the micro battery supplies power to the light bar.

[0011] The present invention is further configured such that a temperature sensor is installed on the outer wall of the middle connecting portion of the spoke.

[0012] The present invention is further configured such that the positioning block is connected to the rim via positioning bolts.

[0013] In summary, the present invention mainly has the following beneficial effects: 1. The present invention realizes the monitoring of the deformation of the entire hub unit through a circle of positioning blocks on the rim. When the rim is deformed, the positioning blocks will be released from the abutment state, the contact switch will be turned on, and the positioning blocks will be energized to remind the owner that deformation has occurred at this position, which effectively improves the early warning monitoring effect of the hub unit on hub deformation; 2. The present invention achieves the heat dissipation effect of the wheel hub unit through the air guide plate. When the wheel hub unit is overheated, the temperature is transmitted to the oil storage shell, and the hydraulic oil inside the oil storage shell expands, pushing the hydraulic mechanism to control the rotation of the air guide plate. When the air guide plate is in the unfolded state, the air guide plate will form an air guide structure during the driving process of the vehicle, and the wind will be poured into the wheel hub, so that the wheel hub unit can be cooled, which effectively prevents the deformation of the wheel hub caused by overheating of the wheel hub unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of a three-dimensional structure of the present invention from a first viewing angle; Figure 2 is a schematic diagram of a three-dimensional structure of the present invention from a second viewing angle; Figure 3 This is a schematic diagram of the air guide plate of the present invention in an unfolded state; Figure 4 This is a schematic diagram of the internal structure of the oil storage shell of the present invention; Figure 5 It is a schematic diagram of the connection between the hydraulic mechanism and the oil storage shell of the present invention; Figure 6 This is a connection diagram of the positioning block of the present invention; Figure 7 It is a schematic diagram of the expansion of the positioning block of the present invention; Figure 8 For the present invention Figure 1 A magnified image of point A; Fig. 9 For the present invention Figure 4 Enlarged view of point C; Fig.10 For the present invention Figure 4 A magnified view of point B; Fig.11 It is a schematic diagram of the internal structure of the hydraulic mechanism of the present invention.

[0015] In the figure: 1. rim; 2. spokes; 3. positioning block; 4. contact switch; 5. positioning bolt; 6. oil storage shell; 7. connecting pipe; 8. hydraulic mechanism; 9. air guide plate; 10. rubber block; 11. groove; 12. light bar; 13. micro battery; 14. cylinder body; 15. movable column; 16. spring; 17. rotating seat; 18. temperature sensor. DETAILED DESCRIPTION

[0016] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0017] A hub unit with fault warning, such as Figure 1-11 As shown, the hub unit structure includes a rim 1 and spokes 2. The inner wall of the rim 1 is provided with a plurality of positioning blocks 3 along the circumference. The positioning blocks 3 are connected to the rim 1 by positioning bolts 5 to facilitate the installation of the positioning blocks 3. Contact switches 4 are provided at both ends of each positioning block 3, and the contact switches 4 abut against each other. A light bar 12 is installed on the outer surface of the positioning block 3. A micro battery 13 is installed inside the positioning block 3, and the micro battery 13 supplies power to the light bar 12. The positioning blocks 3 are arranged along the circumference to form a circle. The contact switch 4 in the abutting state turns off the light bar 12. When the rim 1 is deformed, the deformed rim 1 will push the positioning block 3 to deflect. The deflected positioning block 3 will release the abutting state of the contact switch 4. At this time, the light bar 12 is turned on, and the micro battery 13 supplies power to the light bar 12. The light bar 12 is turned on to remind the driver of deformation. At the same time, during the long-term operation of the railway vehicle, the hub unit may overheat, and the overheated hub unit may also cause the hub to deform, so the side wall of the spoke 2 is rotatably connected with an air guide plate 9, and a hydraulic mechanism 8 is movably connected between the air guide plate 9 and the spoke 2. A mounting groove is provided at the middle connecting part of the spoke 2, and an oil storage shell 6 is provided inside the mounting groove. The hydraulic mechanism 8 is connected to the oil storage shell 6, and the inside of the oil storage shell 6 is filled with hydraulic oil. When the hub unit is overheated, the heat is transferred to the inside of the oil storage shell 6, causing the hydraulic oil to expand due to the heat. The expanded hydraulic oil enters the hydraulic mechanism 8, and the hydraulic mechanism 8 controls the rotation of the air guide plate 9; The hydraulic mechanism 8 includes a cylinder body 14, a movable column 15, a spring 16 and a rotating seat 17. The inner wall of the cylinder body 14 is provided with a spring 16, one end of the spring 16 is connected to the movable column 15, one end of the movable column 15 is rotatably connected to the air guide plate 9 through the rotating seat 17, and the cylinder body 14 is rotatably connected to the spoke 2 through the rotating seat 17. The outer wall of the oil storage shell 6 is provided with a plurality of oil outlets, and the oil outlet is provided with a connecting pipe 7, one end of the connecting pipe 7 is connected to the oil inlet of the hydraulic mechanism 8. The air guide plate 9 is in an initial state due to the tension of the spring 16 and is flush with the spoke 2. When the hydraulic oil inside the oil storage shell 6 expands due to heat, the hydraulic oil enters the cylinder body 14 through the connecting pipe 7, pushing the spring 16 to stretch and pushing the movable column 15 to move outward. The outward moving active column 15 causes the air guide plate 9 to unfold. The unfolded air guide plate 9 will guide the airflow to the inside of the wheel hub unit during driving to take away the heat.

[0018] Furthermore, the outer wall of the oil storage shell 6 is provided with a plurality of fixing grooves, the inner wall of the fixing groove is provided with a rubber block 10, and the inner wall of the mounting groove is provided with a groove 11. When the hydraulic oil is subjected to high temperature expansion, but the temperature has not reached the corresponding limit, the rubber block 10 will be squeezed into the groove 11 until the subsequent temperature continues to rise, at which time the hydraulic oil will enter the connecting pipe 7 to perform corresponding actions.

[0019] At the same time, a temperature sensor 18 is installed on the outer wall of the middle connection part of the spoke 2. When the temperature of the hub unit rises to a level that is difficult to reduce through airflow, the temperature sensor 18 will transmit a temperature signal to the cab to remind the driver.

[0020] Through the above structure, the positioning block 3 monitors the deformation of the hub unit, and the air guide plate 9 guides the airflow to the inside of the hub unit. In conjunction with the temperature sensor 18, the hub unit can be effectively cooled down while warning of the deformation of the hub unit.

[0021] Although an embodiment of the present invention has been shown and described, this specific embodiment is merely an explanation of the present invention and is not a limitation of the invention. The specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions and variations to the embodiments without creative contributions as needed without departing from the principles and purpose of the present invention. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. A hub unit with fault warning, comprising a rim (1) and spokes (2), characterized in that: The inner wall of the wheel rim (1) is provided with a plurality of positioning blocks (3) along the circumference, and contact switches (4) are provided at both ends of each positioning block (3), and the contact switches (4) are in contact with each other. The side wall of the spoke (2) is rotatably connected with an air guide plate (9), and a hydraulic mechanism (8) is movably connected between the air guide plate (9) and the spoke (2). An installation groove is provided at the middle connecting portion of the spoke (2), and an oil storage shell (6) is provided inside the installation groove. The hydraulic mechanism (8) is connected to the oil storage shell (6), and the inside of the oil storage shell (6) is filled with hydraulic oil.

2. A hub unit with fault warning according to claim 1, characterized in that: The outer wall of the oil storage shell (6) is provided with a plurality of fixing grooves, the inner wall of the fixing groove is provided with a rubber block (10), and the inner wall of the installation groove is provided with a groove (11).

3. A hub unit with fault warning according to claim 1, characterized in that: The outer wall of the oil storage shell (6) is provided with a plurality of oil outlets, and the oil outlets are provided with connecting pipes (7), and one end of the connecting pipe (7) is connected to the oil inlet of the hydraulic mechanism (8).

4. A hub unit with fault warning according to claim 1, characterized in that: The hydraulic mechanism (8) comprises a cylinder body (14), a movable column (15), a spring (16) and a rotating seat (17); a spring (16) is provided on the inner wall of the cylinder body (14); one end of the spring (16) is connected to the movable column (15); one end of the movable column (15) is rotatably connected to the air guide plate (9) via the rotating seat (17); and the cylinder body (14) is rotatably connected to the spoke (2) via the rotating seat (17).

5. A hub unit with fault warning according to claim 1, characterized in that: A light bar (12) is mounted on the outer surface of the positioning block (3), a micro battery (13) is mounted inside the positioning block (3), and the micro battery (13) supplies power to the light bar (12).

6. A hub unit with fault warning according to claim 1, characterized in that: A temperature sensor (18) is installed on the outer wall of the middle connecting portion of the spoke (2).

7. A hub unit with fault warning according to claim 1, characterized in that: The positioning block (3) and the wheel rim (1) are connected via positioning bolts (5).

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