A special top wheel device for electric locomotive

Abstract

The utility model provides a kind of special top wheel device of electric locomotive, comprising: jack, axle box support and safety stop, jack includes sleeve and jacking rod, jacking rod is telescopically set in sleeve;The bottom of axle box support is used to contact with the top of jacking rod, the top of axle box support is used to carry axle box;Safety stop is used to be inserted between axle box support and sleeve to support safety stop, the section of safety stop is U type, and is formed with opening and accommodating space, accommodating space is used to accommodate jacking rod, opening is used to cooperate jacking rod to pass through.U type section of safety stop can be installed around jacking rod, can be quickly inserted or removed without disassembling jack, provide mechanical safety support, prevent axle box 5 sudden drop when jack failure, the device structure is simple, safe and reliable, need not distribution, can be carried with electric locomotive, and the requirement of top wheel site is not high, can be carried out to top wheel on locomotive in general site.

Description

Technical Field

[0001] This utility model belongs to the field of electric locomotive technology, and more specifically, relates to a special top wheel device for electric locomotives. Background Technology

[0002] With the rapid development of my country's railway transportation industry, operating units are increasingly emphasizing the safety of locomotive operation. As a core component of electric locomotives, the wheelset motor drive system's operating status directly affects the locomotive's driving safety. Among these components, the axle box bearings, as key parts supporting wheelset rotation, require regular top-wheel tests to detect critical parameters such as bearing clearance, temperature rise, and vibration. This allows for accurate assessment of the bearing's health condition and prevention of serious accidents such as hot axle or burning axle.

[0003] Currently, the equipment used for axle box bearing top rollers in the industry generally suffers from the following problems: (1) Complex structure and high cost: Existing top wheel equipment mostly adopts integrated hydraulic lifting platform or electric screw lifting system, which integrates complex hydraulic pump station, electrical control system, sensor group and steel structure frame. The purchase cost of a single piece of equipment is as high as hundreds of thousands of yuan, and the maintenance cost is high and the maintenance cycle is long, which seriously increases the maintenance cost of the user unit.

[0004] (2) Large size and reliance on fixed positions: Traditional equipment needs to be installed in a special foundation or trench, with an overall height of more than 1.5 meters and a floor area of ​​4-6 square meters. It also requires a 380V industrial power supply and hydraulic pipelines. This means that the test can only be carried out in a maintenance depot with the necessary conditions, and cannot meet the testing needs of small stations, turnaround sections or sudden failure sites along the line.

[0005] (3) Redundant operation and low efficiency: Traditional equipment requires 3-4 people to work together to complete the equipment alignment, hydraulic system venting, electrical control calibration and other processes, and the preparation time for a single test exceeds 40 minutes.

[0006] Therefore, developing a lightweight top wheel device that is simple in structure, cost-controllable, requires no external power supply, and can adapt to ordinary ground conditions has become an urgent need to ensure the safety of railway transportation. Utility Model Content

[0007] The purpose of this invention is to provide a special top wheel device for electric locomotives, which solves the problems of complex structure, large size and redundant operation of existing axle box bearing top wheel devices.

[0008] To achieve the above objectives, this utility model provides a special top wheel device for electric locomotives, comprising: A jack, the jack including a sleeve and a lifting rod, the lifting rod being telescopically disposed within the sleeve; A shaft box support, the bottom of which is used to contact the top of the lifting rod, and the top of which is used to support the shaft box; A safety stop is inserted between the axle box support and the sleeve to support the safety stop. The safety stop has a U-shaped cross-section and forms an opening and a receiving space. The receiving space is used to accommodate the lifting rod, and the opening is used to allow the lifting rod to pass through.

[0009] Optionally, the bottom of the axle box support is provided with a blind hole, which is used to limit the lifting rod.

[0010] Optionally, the bottom of the axle box support is provided with a through groove, and the blind hole is provided in the through groove. The through groove is used to cooperate with the safety stop to insert and limit the safety stop.

[0011] Optionally, the top of the axle box support is V-shaped.

[0012] Optionally, the electric locomotive-specific top wheel device also includes: The base is disc-shaped, with its upper surface for contacting the bottom of the jack and its lower surface for contacting the ground.

[0013] Optionally, both the upper and lower surfaces of the base are provided with anti-slip textures.

[0014] Optionally, the diameter of the blind hole is larger than the outer diameter of the lifting rod.

[0015] Optionally, the width of the through groove is greater than the outer diameter of the safety stop.

[0016] Optionally, the inner diameter of the safety stop is larger than the outer diameter of the lifting rod, and the width of the opening is larger than the outer diameter of the lifting rod.

[0017] Optionally, the depth of the blind hole is 15 mm, and the width of the through groove is 91 mm.

[0018] The beneficial effects of this utility model are as follows: It provides a special top wheel device for electric locomotives, including: a jack, an axle box support, and a safety stop. The jack includes a sleeve and a lifting rod, which is telescopically installed inside the sleeve. The bottom of the axle box support is used to contact the top of the lifting rod, and the top of the axle box support is used to support the axle box. The safety stop is inserted between the axle box support and the sleeve to support the safety stop. The safety stop has a U-shaped cross-section, forming an opening and a receiving space. The receiving space is used to accommodate the lifting rod, and the opening is used to allow the lifting rod to pass through. The U-shaped safety stop can be installed around the lifting rod and can be quickly inserted or removed without disassembling the jack, providing mechanical safety support and preventing the axle box from suddenly falling when the jack fails. This device has a simple structure, is safe and reliable, does not require power distribution, can be carried with the electric locomotive, and has low requirements for the top wheel site, allowing for top wheel installation on locomotives in general sites.

[0019] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0020] The above and other objects, features and advantages of the present invention will become more apparent from the accompanying drawings, in which like reference numerals generally represent like parts.

[0021] Figure 1 A schematic structural diagram of a top wheel device for electric locomotives according to an embodiment of the present invention is shown.

[0022] Figure 2 A schematic structural diagram of an axle box support according to an embodiment of the present invention is shown.

[0023] Figure 3 A schematic structural diagram of a safety stop according to an embodiment of the present invention is shown.

[0024] Explanation of reference numerals in the attached figures: 1. Jack; 11. Sleeve; 12. Lifting rod; 2. Axle box support; 21. Blind hole; 22. Through groove; 3. Safety stop; 31. Opening; 32. Accommodation space; 4. Base; 5. Axle box. Detailed Implementation

[0025] Preferred embodiments of the present invention will now be described in more detail. While preferred embodiments of the present invention are described below, it should be understood that the present invention can be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0026] Example

[0027] like Figure 1-3 As shown, this embodiment provides a special top wheel device for electric locomotives, including: Jack 1, Jack 1 includes a sleeve 11 and a lifting rod 12, the lifting rod 12 is telescopically disposed inside the sleeve 11; Axle box support 2, the bottom of axle box support 2 is used to contact the top of lifting rod 12, and the top of axle box support 5 is used to support axle box 5; Safety stop 3 is inserted between axle box support 2 and sleeve 11 to support safety stop 3. Safety stop 3 has a U-shaped cross section and forms an opening 31 and a receiving space 32. The receiving space 32 is used to receive the lifting rod 12, and the opening 31 is used to allow the lifting rod 12 to pass through.

[0028] Specifically, the electric locomotive-specific top wheel device adopts a U-shaped cross-section safety stop 3, forming an opening 31 and a receiving space 32, which can be installed around the lifting rod 12. It can be quickly inserted or removed without disassembling the jack 1, providing mechanical safety support and preventing the axle box 5 from suddenly falling when the jack 1 fails. The device has a simple structure, is safe and reliable, does not require power distribution, can be carried with the electric locomotive, and has low requirements for the top wheel site, and can be used to top the locomotive in general sites.

[0029] Optionally, the bottom of the axle box support 2 is provided with a blind hole 21, which is used to limit the lifting rod 12.

[0030] Specifically, the blind hole 21 can center and limit the top of the lifting rod 12 to prevent lateral slippage and improve the stability of the device.

[0031] Optionally, the bottom of the axle box support 2 is provided with a through groove 22, and a blind hole 21 is provided in the through groove 22. The through groove 22 is used to cooperate with the safety stop 3 to insert and limit the safety stop 3.

[0032] Specifically, the through slot 22 provides an insertion path and lateral limit for the safety stop 3, forming dual protection and improving the stability of the device.

[0033] Optionally, the top of the axle box support 2 is V-shaped.

[0034] Specifically, the top of the axle box support 2 has a V-shaped structure, which can adapt to axle box journals of different diameters, improving versatility; it also increases the contact area, distributes the load, and avoids local damage to the axle box 5.

[0035] Optionally, the electric locomotive-specific top wheel device also includes: The base 4 is disc-shaped. The upper surface of the base 4 is used to contact the bottom of the jack 1, and the lower surface of the base 4 is used to contact the ground.

[0036] Specifically, the disc-shaped structure has good stability, adapts to complex terrain, and reduces the ground pressure exerted by the equipment.

[0037] Optionally, both the upper and lower surfaces of the base 4 are provided with anti-slip textures.

[0038] Specifically, the anti-slip texture design prevents the jack 1 or base 4 from slipping, improving operational safety.

[0039] Optionally, the diameter of the blind hole 21 is larger than the outer diameter of the lifting rod 12, which allows the lifting rod 12 to be inserted into the blind hole 21.

[0040] Optionally, the width of the through slot 22 is greater than the outer diameter of the safety stop 3, which allows the safety stop 3 to be smoothly inserted into the through slot 22.

[0041] Optionally, the inner diameter of the safety stop 3 is larger than the outer diameter of the lifting rod 12, and the width of the opening 31 is larger than the outer diameter of the lifting rod 12, so that the safety stop 3 can be installed around the lifting rod 12.

[0042] In this embodiment, the depth of the blind hole 21 is 15mm, and the width of the through groove 22 is 91mm.

[0043] The method of using the electric locomotive-specific top wheel device in this embodiment is as follows: Place the two sets of this device directly below the left and right axle boxes 5 of the same wheelset.

[0044] Two people simultaneously operate jack 1 to lift the wheelset, causing it to leave the rails.

[0045] After adjusting the wheelset height, insert the safety stop 3 into the groove of the axle box support 2, so that it is in close contact with the lifting sleeve 11 of the jack 1, and the top wheel is completed.

[0046] The various embodiments of the present invention have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A top wheel device for electric locomotives, characterized in that, include: Jack (1), the jack (1) includes a sleeve (11) and a lifting rod (12), the lifting rod (12) being telescopically disposed inside the sleeve (11); Axle box support (2), the bottom of which is used to contact the top of the lifting rod (12), and the top of which is used to support the axle box (5). Safety stop (3), the safety stop (3) is used to be inserted between the axle box support (2) and the sleeve (11) to support the safety stop (3). The safety stop (3) has a U-shaped cross section and forms an opening (31) and a receiving space (32). The receiving space (32) is used to receive the lifting rod (12). The opening (31) is used to allow the lifting rod (12) to pass through.

2. The electric locomotive-specific top wheel device according to claim 1, characterized in that, The bottom of the axle box support (2) is provided with a blind hole (21), which is used to limit the lifting rod (12).

3. The electric locomotive-specific top wheel device according to claim 2, characterized in that, The bottom of the axle box support (2) is provided with a through groove (22), and the blind hole (21) is provided in the through groove (22). The through groove (22) is used to cooperate with the safety stop (3) to insert and limit the safety stop (3).

4. The electric locomotive-specific top wheel device according to claim 1, characterized in that, The top of the axle box support (2) is V-shaped.

5. The electric locomotive-specific top wheel device according to claim 1, characterized in that, Also includes: The base (4) is in the shape of a disc. The upper surface of the base (4) is used to contact the bottom of the jack (1), and the lower surface of the base (4) is used to contact the ground.

6. The electric locomotive-specific top wheel device according to claim 5, characterized in that, The upper and lower surfaces of the base (4) are provided with anti-slip textures.

7. The electric locomotive-specific top wheel device according to claim 2, characterized in that, The diameter of the blind hole (21) is larger than the outer diameter of the lifting rod (12).

8. The electric locomotive-specific top wheel device according to claim 3, characterized in that, The width of the through groove (22) is greater than the outer diameter of the safety stop (3).

9. The electric locomotive-specific top wheel device according to claim 1, characterized in that, The inner diameter of the safety stop (3) is greater than the outer diameter of the lifting rod (12), and the width of the opening (31) is greater than the outer diameter of the lifting rod (12).

10. The electric locomotive-specific top wheel device according to claim 3, characterized in that, The depth of the blind hole (21) is 15 mm, and the width of the through groove (22) is 91 mm.

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