Oil level observation mirror for gearbox of high-speed rail

By using the sintering and fusion technology of metal shell and sintered glass in the oil level observation mirror of the high-iron gear box, combined with the CNC edge-graining and buffering glue coating of the composite sealing ring and explosion-proof glass, the existing oil level observation mirror is solved, which is easy to seep oil, short service life and difficult to withstand high impact vibration, and achieves better sealing effect and impact resistance.

CN222864064UActive Publication Date: 2025-05-13ZHUZHOU DONGCHUANG ELECTROMECHANICAL TECH CO LTD
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Patent Information

Application Number
CN202420930263.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-04-30
Publication Date
2025-05-13
Estimated Expiration
2034-04-30

AI Technical Summary

Technical Problem

The oil level observation mirror of the existing rail transit vehicle drive gearbox is prone to oil seepage, shortened service life, and it is difficult to withstand the high impact vibration caused by high-speed rail, affecting the long-term stable operation reliability of the vehicle.

Method used

A high-iron gearbox oil level observation mirror was designed, using a metal shell and sintered glass during production, combining a composite sealing ring and explosion-proof glass, grinding the edges through a CNC edge grinder, and applying buffer glue to improve sealing effect and impact resistance.

Benefits of technology

It achieves better sealing effect and impact resistance, avoids explosion-proof glass edge fragmentation, improves the service life of the oil level observation mirror and adaptability to the high-speed rail environment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of oil level observation mirrors, and discloses a high-speed rail gear box oil level observation mirror which is characterized in that one side in a second inner groove is provided with a first composite sealing ring, the other side in the first composite sealing ring is provided with a second composite sealing ring, one side of the first composite sealing ring is connected with explosion-proof glass in an attached mode, and the other side of the first composite sealing ring is connected with a second inner groove in an attached mode. The other side of the explosion-proof glass is attached to one side of the second composite sealing ring, a third inner groove is formed in the third metal shell, and a locking ring is arranged in the third inner groove. According to the explosion-proof glass, the first metal shell and the first sintered glass are fused into a whole in the manufacturing process through sintering, the good sealing effect can be achieved when the sintered glass is arranged in the first inner groove, the edge of the explosion-proof glass is ground through a numerical control edge grinding machine before the explosion-proof glass is assembled, the surface roughness of the edge of the explosion-proof glass can be improved, and the service life of the explosion-proof glass is prolonged. Therefore, the sealing effect is further enhanced when the explosion-proof glass is assembled.
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Description

Technical Field

[0001] The utility model relates to the technical field of oil level observation mirrors, in particular to an oil level observation mirror for a high-speed railway gearbox. Background Art

[0002] The high-speed train drive gearbox is an important part of rail transit vehicles. Since the oil position and color inside the gearbox need to be checked regularly, a reliable position sight glass is required on the gearbox. The original rail transit vehicle drive gearbox oil level sight glass is prone to oil leakage after a certain period of time, and its service life is shortened after the high and low temperature of the external environment changes continuously. It is also difficult to withstand the high impact vibration caused by the high speed of the high-speed rail. Affecting the reliability of the long-term stable operation of the vehicle. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes an oil level observation mirror for a high-speed railway gearbox.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-speed railway gearbox oil level observation glass, comprising an oil tank and an observation glass assembly, the observation glass assembly comprising a metal shell one, one side of the metal shell one is fixedly connected with an inner groove two, the side of the inner groove two away from the metal shell one is fixedly connected with a metal shell three, the metal shell one is provided with an inner groove one, the inner groove one is provided with sintered glass, the metal shell two is provided with an inner groove two, one side of the inner groove two is provided with a composite sealing ring one, the other side of the composite sealing ring one is provided with a composite sealing ring two, one side of the composite sealing ring one is bonded with explosion-proof glass, the other side of the explosion-proof glass is bonded to one side of the composite sealing ring two, the metal shell three is provided with an inner groove three, and the inner groove three is provided with a locking ring.

[0005] As a further description of the above technical solution:

[0006] The locking ring is provided with a clamping opening, which is provided in two groups and symmetrically divided, and is arranged between the second metal shell and the third metal shell. The third metal shell is provided with connecting holes, which are provided in three groups and arranged in a ring shape.

[0007] As a further description of the above technical solution:

[0008] The sintered glass and explosion-proof glass are both made of transparent glass.

[0009] As a further description of the above technical solution:

[0010] The observation mirror assembly comprises a metal shell 1, an inner groove 1, sintered glass, a composite sealing ring 1, explosion-proof glass, a composite sealing ring 2, a metal shell 2, an inner groove 2, a locking ring, a clamping port, a metal shell 3, and a connecting hole.

[0011] As a further description of the above technical solution:

[0012] A connecting plate is fixedly connected to the metal shell 1, and a threaded hole 2 is arranged in the connecting plate. A threaded hole 1 is arranged on the oil tank, and screws are threadedly connected in the threaded hole 1 and the threaded hole 2. An observation port is arranged on the oil tank.

[0013] As a further description of the above technical solution:

[0014] The connecting plate, the second threaded hole and the screws are provided in two groups and are arranged on both sides of the first metal shell; the first threaded hole is provided in two groups and is arranged on both sides of the oil tank.

[0015] As a further description of the above technical solution:

[0016] The composite sealing ring 1 and the composite sealing ring 2 are both composed of an outer layer 1, an inner layer and an outer layer 2. The lower surface of the outer layer 1 is fixedly connected to the inner layer, the lower surface of the inner layer is fixedly connected to the outer layer 2, and the inner layer is arranged between the outer layer 1 and the outer layer 2.

[0017] As a further description of the above technical solution:

[0018] The outer layer 1 and the outer layer 2 are both made of a mixture of titanium alloy materials, the inner layer is made of a combination of rubber materials, and the outer surfaces of the composite sealing ring 1 and the composite sealing ring 2 are coated with buffer rubber.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, a metal shell and a sintered glass are fused together by sintering during manufacture, so that a good sealing effect can be achieved when the sintered glass is arranged in an inner groove. The edge of the explosion-proof glass is ground and edged by a CNC edge grinding machine before assembly, so that the edge surface roughness of the explosion-proof glass can be improved, thereby further enhancing the sealing effect when the explosion-proof glass is assembled.

[0021] 2. In the utility model, buffer glue is applied on the outer surfaces of the composite sealing ring 1 and the composite sealing ring 2, so that the explosion-proof glass between the composite sealing ring 1 and the composite sealing ring 2 can play a buffering effect during transportation, avoiding the edge breakage of the explosion-proof glass during operation, and greatly improving the performance of the explosion-proof glass in resisting the impact of external gravel during actual use.

[0022] 3. In the utility model, the inner layer is composed of rubber materials, so that the composite sealing ring 1 and the composite sealing ring 2 have good sealing performance and elastic recovery ability, can effectively fill the sealing gap, and quickly return to its original state after being affected by external force. By providing the composite sealing ring 1 and the composite sealing ring 2, the traditional gluing technology is replaced, and the sealing of the explosion-proof glass is made stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the disassembled structure of a high-speed railway gearbox oil level observation mirror proposed by the utility model;

[0024] Figure 2 The three-dimensional structure diagram of the observation mirror assembly proposed by the utility model Figure 1 ;

[0025] Figure 3 The three-dimensional structure diagram of the observation mirror assembly proposed by the utility model Figure 2 ;

[0026] Figure 4 This is an exploded view of the observation mirror assembly proposed by the utility model;

[0027] Figure 5 It is a schematic diagram of the layer structure of the composite sealing ring 1 and the composite sealing ring 2 proposed in the utility model.

[0028] Legend:

[0029] 1. Oil tank; 2. Threaded hole one; 3. Observation port; 4. Connecting plate; 5. Threaded hole two; 6. Screws; 7. Metal shell one; 8. Inner groove one; 9. Sintered glass; 10. Composite sealing ring one; 11. Explosion-proof glass; 12. Composite sealing ring two; 13. Metal shell two; 14. Inner groove two; 15. Locking ring; 16. Clamping port; 17. Metal shell three; 18. Inner groove three; 19. Outer layer one; 20. Inner layer; 21. Outer layer two; 22. Connecting hole. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0031] Reference Figure 1-Figure 5The utility model provides an embodiment: an oil level observation mirror for a high-speed railway gearbox, an oil tank 1, an observation mirror assembly, the observation mirror assembly comprising a metal shell 17, one side of the metal shell 17 is fixedly connected with an inner groove 2 14, the inner groove 2 14 is fixedly connected with a metal shell 3 17 on a side away from the metal shell 17, the metal shell 17 is provided with an inner groove 18, the inner groove 18 is provided with a sintered glass 9, the metal shell 2 13 is provided with an inner groove 2 14, one side of the inner groove 2 14 is provided with a composite sealing ring 10, the other side of the composite sealing ring 10 is provided with a composite sealing ring 2 12, one side of the composite sealing ring 10 is fitted with an explosion-proof glass 11, and the other side of the explosion-proof glass 11 is fitted with one side of the composite sealing ring 2 12, the metal shell 3 17 is provided with an inner groove 3 18, the inner groove 3 18 is provided with a locking ring 15, the locking ring 15 is provided with a clamping opening 16, the clamping opening 16 is provided with two groups and is symmetrically divided, and the clamping opening 16 is provided on the metal shell 2 1 3 and the metal shell three 17, the metal shell three 17 is provided with connecting holes 22, and the connecting holes 22 are provided in three groups and are arranged in a ring shape. The sintered glass 9 and the explosion-proof glass 11 are both made of transparent glass. The metal shell one 7 and the sintered glass 9 are fused into one by sintering during production, so that the sintered glass 9 can achieve a good sealing effect when it is arranged in the inner groove one 8. The edge of the explosion-proof glass 11 is ground and edged by a CNC edge grinder before assembly, so that the edge surface roughness of the explosion-proof glass 11 can be improved, thereby further enhancing the sealing effect of the explosion-proof glass 11 when it is assembled. The outer surfaces of the composite sealing ring one 10 and the composite sealing ring two 12 are coated with buffer glue, so that the explosion-proof glass 11 between the composite sealing ring one 10 and the composite sealing ring two 12 can play a buffering effect during transportation, thereby avoiding the phenomenon of edge breakage of the explosion-proof glass 11 during operation, and greatly improving the performance of the explosion-proof glass 11 in resisting the impact of external gravel during actual use.

[0032] The observation mirror assembly includes a metal shell 17, an inner groove 18, a sintered glass 9, a composite sealing ring 10, an explosion-proof glass 11, a composite sealing ring 2 12, a metal shell 2 13, an inner groove 2 14, a locking ring 15, a clamping port 16, a metal shell 3 17, and a connecting hole 22. The metal shell 17 is fixedly connected with a connecting plate 4, in which a threaded hole 2 5 is provided. The oil tank 1 is provided with a threaded hole 2, in which the threaded hole 2 and the threaded hole 2 5 are both threadedly connected with a screw 6. The oil tank 1 is provided with an observation port 3. The connecting plate 4, the threaded hole 2 5, and the screw 6 are all provided in two groups and are arranged on both sides of the metal shell 17. The threaded hole 12 is provided in two groups and are arranged on both sides of the oil tank 1. The composite sealing ring 10 and the composite sealing ring 2 12 are both composed of an outer layer 19, an inner layer 20, and an outer layer 21. The lower surface of the outer layer 19 is fixedly connected with the inner layer 20, and the lower surface of the inner layer 20 is fixedly connected with the outer layer 2 2 1. The inner layer 20 is arranged between the outer layer 19 and the outer layer 21. The outer layer 19 and the outer layer 21 are both made of a mixture of titanium alloy materials. The inner layer 20 is composed of a combination of rubber materials. The outer surfaces of the composite sealing ring 10 and the composite sealing ring 2 12 are coated with buffer rubber. The outer layer 19 and the outer layer 21 are both made of a mixture of titanium alloy materials, so that the composite sealing ring 10 and the composite sealing ring 2 12 have good corrosion resistance and high temperature resistance, and can maintain a sealing effect in a harsh working environment. The inner layer 20 is composed of a combination of rubber materials, so that the composite sealing ring 10 and the composite sealing ring 2 12 have good sealing performance and elastic recovery ability, can effectively fill the sealing gap, and quickly restore to its original state after being acted upon by an external force. The composite sealing ring 10 and the composite sealing ring 2 12 replace the traditional gluing technology, so that the explosion-proof glass 11 has a stronger sealing performance.

[0033] Working principle: The metal shell 7 and the sintered glass 9 are fused together during manufacturing, so that the sintered glass 9 can achieve a good sealing effect when it is arranged in the inner groove 8. The edge of the explosion-proof glass 11 is ground and edged by a CNC edge grinder before assembly, so that the edge surface roughness of the explosion-proof glass 11 can be improved, thereby further enhancing the sealing effect of the explosion-proof glass 11 during assembly. The outer surfaces of the composite sealing ring 10 and the composite sealing ring 2 12 are coated with buffer glue, so that the explosion-proof glass 11 between the composite sealing ring 10 and the composite sealing ring 2 12 can play a buffering effect during transportation, avoiding the phenomenon of edge breakage of the explosion-proof glass 11 during operation, greatly improving the explosion-proof glass In order to improve the performance of the glass 11 in resisting the impact of external gravel in actual use, the outer layer 19 and the outer layer 21 are both made of a mixture of titanium alloy materials, so that the composite sealing ring 10 and the composite sealing ring 2 12 have good corrosion resistance and high temperature resistance, and can maintain the sealing effect in harsh working environments. The inner layer 20 is composed of a rubber material, so that the composite sealing ring 10 and the composite sealing ring 2 12 have good sealing performance and elastic recovery ability, can effectively fill the sealing gap, and quickly return to its original state after being acted upon by external force. The composite sealing ring 10 and the composite sealing ring 2 12 replace the traditional gluing technology, making the explosion-proof glass 11 more sealed.

[0034] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-speed railway gearbox oil level observation mirror, characterized in that: The invention comprises an oil tank (1) and an observation mirror assembly, wherein the observation mirror assembly comprises a metal shell (7), one side of the metal shell (7) is fixedly connected to an inner groove (14), a side of the inner groove (14) away from the metal shell (7) is fixedly connected to a metal shell (3) (17), an inner groove (8) is arranged inside the metal shell (7), a sintered glass (9) is arranged inside the inner groove (8), a metal shell (2) (13) is arranged outside the inner groove (8), and the metal shell (2) (13) An inner groove 2 (14) is provided inside, a composite sealing ring 1 (10) is provided on one side of the inner groove 2 (14), a composite sealing ring 2 (12) is provided on the other side of the composite sealing ring 1 (10), one side of the composite sealing ring 1 (10) is bonded to an explosion-proof glass (11), and the other side of the explosion-proof glass (11) is bonded to one side of the composite sealing ring 2 (12), an inner groove 3 (18) is provided inside the metal shell 3 (17), and a locking ring (15) is provided inside the inner groove 3 (18).

2. The high-speed railway gearbox oil level observation mirror according to claim 1, characterized in that: The locking ring (15) is provided with a clamping opening (16), the clamping opening (16) is provided with two groups and is symmetrically divided, the clamping opening (16) is arranged between the second metal shell (13) and the third metal shell (17), the third metal shell (17) is provided with a connecting hole (22), the connecting holes (22) are provided with three groups and are arranged in a ring shape.

3. The high-speed railway gearbox oil level observation mirror according to claim 1, characterized in that: The sintered glass (9) and the explosion-proof glass (11) are both made of transparent glass.

4. The high-speed railway gearbox oil level observation mirror according to claim 1, characterized in that: The observation mirror assembly comprises a metal shell (7), an inner groove (8), sintered glass (9), a composite sealing ring (10), explosion-proof glass (11), a composite sealing ring (12), a metal shell (13), an inner groove (14), a locking ring (15), a clamping opening (16), a metal shell (17), and a connecting hole (22).

5. The high-speed railway gearbox oil level observation mirror according to claim 1, characterized in that: The metal shell (7) is fixedly connected to a connecting plate (4), the connecting plate (4) is provided with a threaded hole (5), the oil tank (1) is provided with a threaded hole (2), the threaded hole (2) and the threaded hole (5) are both threadedly connected with screws (6), and the oil tank (1) is provided with an observation port (3).

6. The high-speed railway gearbox oil level observation mirror according to claim 5, characterized in that: The connecting plate (4), the second threaded hole (5), and the screw (6) are each provided in two groups and are arranged on both sides of the first metal shell (7); the first threaded hole (2) is provided in two groups and is arranged on both sides of the oil tank (1).

7. The high-speed railway gearbox oil level observation mirror according to claim 1, characterized in that: The composite sealing ring 1 (10) and the composite sealing ring 2 (12) are both composed of an outer layer 1 (19), an inner layer (20), and an outer layer 2 (21); the lower surface of the outer layer 1 (19) is fixedly connected to the inner layer (20); the lower surface of the inner layer (20) is fixedly connected to the outer layer 2 (21); and the inner layer (20) is arranged between the outer layer 1 (19) and the outer layer 2 (21).

8. The high-speed railway gearbox oil level observation mirror according to claim 7, characterized in that: The outer layer 1 (19) and the outer layer 2 (21) are both made of a mixture of titanium alloy materials, the inner layer (20) is made of a combination of rubber materials, and the outer surfaces of the composite sealing ring 1 (10) and the composite sealing ring 2 (12) are coated with buffer rubber.