Quick leakage-proof joint of high-pressure oil nozzle for dismounting and mounting wheel

Abstract

The utility model relates to the field of locomotive wheelset maintenance, and discloses a high-pressure oil nozzle quick leakproof joint for dismounting and mounting a wheel, which comprises an oil injection column, an oil injection head is arranged at the right end of the oil injection column, a connecting assembly is arranged at the left end of the oil injection column, external threads are arranged on the outer wall of the oil injection column, the connecting assembly comprises a connecting head, and the connecting head is connected with the oil injection column through the external threads. The connector is inserted into the left end of the oil injection column, internal threads are arranged on the inner wall of the connector, a sealing ring is arranged at the left end of the oil injection head, a sealing groove is formed in the right end of the oil injection column and matched with the sealing ring, a threaded ring is arranged at the left end of the sealing ring, and a threaded groove is formed in the left end of the sealing groove. And the threaded ring is matched with the threaded groove. According to the oil injection device, the detachable hemispherical oil injection head is used for replacing a traditional brass oil seal, the detachable hemispherical oil injection head can be taken out more conveniently during use, the oil injection column and the oil injection head are connected through threads, replacement is more convenient, and the whole device is more convenient to use.

Description

Technical Field

[0001] The utility model relates to the field of locomotive wheel set maintenance, in particular to a high-pressure nozzle quick anti-leakage joint for wheel disassembly and assembly. Background Technique

[0002] During the maintenance process of the SS4 electric locomotive wheel set, the disassembly and assembly of the wheels are bound to be encountered, and a high-pressure oil pump is used in the process. The regulations for wheel set disassembly state that to ensure the integrity rate of disassembly, high-pressure oil injection must be carried out on the wheel before wheel withdrawal, and wheel withdrawal can only be carried out after high-pressure oil seeps out from the interface; the regulations for wheel set assembly state that to ensure the success rate of wheel pressing, when the axle reaches the oil groove and is completely closed, oil injection starts, and wheel pressing can only be carried out after high-pressure oil seeps out from the interface. The pressure at the end of wheel pressing shall not be greater than 198 KN. Since the pressure of the nozzle is very high during use, how to ensure the sealing performance of the nozzle is the key.

[0003] In the prior art, generally, a brass oil plug is first placed into the oil hole of the wheel, and then the nozzle is screwed in. The nozzle and the brass oil plug are closely attached, and then the brass oil plug and the wheel oil hole are closely attached to achieve the sealing effect. However, in actual use, the sealing effect is not very ideal, and oil leakage often occurs. At the same time, the brass oil plug will be deformed after use and may not be able to be taken out. It can be discarded on the scrapped wheel during disassembly, but it must be taken out on the new wheel during assembly, which is rather troublesome in use. Therefore, a high-pressure nozzle quick anti-leakage joint for wheel disassembly and assembly is proposed to solve the above problems. Content of the Utility Model

[0004] To make up for the above deficiencies, the utility model provides a high-pressure nozzle quick anti-leakage joint for wheel disassembly and assembly, aiming to improve the problem of "using a brass oil plug for auxiliary sealing, which is rather inconvenient in use" in the prior art.

[0005] To achieve the above purpose, the utility model adopts the following technical scheme: A high-pressure nozzle quick anti-leakage joint for wheel disassembly and assembly, including an oil injection column, an oil injection head is arranged at the right end of the oil injection column, a connection assembly is arranged at the left end of the oil injection column, an external thread is arranged on the outer wall of the oil injection column, the connection assembly includes a connection head, the connection head is inserted at the left end of the oil injection column, and an internal thread is arranged on the inner wall of the connection head.

[0006] As a further description of the above technical solution:

[0007] A sealing ring is arranged at the left end of the oil injection head, a sealing groove is arranged at the right end of the oil injection column, and the sealing groove and the sealing ring are adapted to each other.

[0008] As a further description of the above technical solution:

[0009] A threaded ring is provided at the left end of the sealing ring, and a threaded groove is provided at the left end of the sealing groove. The threaded ring and the threaded groove are adapted to each other.

[0010] As a further description of the above technical solution:

[0011] The connection component further includes a connection ring, and the right end of the connection ring is fixedly connected to the left end of the oil injection column.

[0012] As a further description of the above technical solution:

[0013] A support frame is fixedly connected to the front end of the connection head. A buckle is rotatably connected to the outer wall of the support frame, and a connection groove is provided on the outer wall of the connection ring.

[0014] As a further description of the above technical solution:

[0015] The right end of the buckle is triangular, and the connection groove is adapted to the buckle.

[0016] As a further description of the above technical solution:

[0017] A torsion spring is fixedly connected to the outer wall of the support frame, and the bottom end of the torsion spring is fixedly connected to the inner wall of the buckle.

[0018] As a further description of the above technical solution:

[0019] A dial plate is fixedly connected to the left end of the buckle.

[0020] The present utility model has the following beneficial effects:

[0021] 1. In the present utility model, by using a detachable hemispherical oil injection head to replace the traditional brass oil seal, it is more convenient to take out during use, and threads are used to connect the oil injection column and the oil injection head, which is more convenient during replacement, and the overall device is more convenient to use.

[0022] 2. In the present utility model, by using a connection component to connect the oil injection gun and the oil injection column, the limit on the oil injection column can be released by pressing two groups of dial plates during use. In this way, it is not necessary to repeatedly screw the threads when replacing the oil injection column, and it is more convenient during replacement. Description of the Drawings

[0023] Figure 1 is a three-dimensional structural schematic diagram of the overall device in the present utility model;

[0024] Figure 2 is a three-dimensional structural sectional split schematic diagram of the overall device in the present utility model;

[0025] Figure 3 is a three-dimensional structural sectional split schematic diagram of the connection component in the present utility model.

[0026] Legend Explanation:

[0027] 1. Oil filling column; 11. External thread; 12. Sealing groove; 13. Thread groove; 2. Oil filling head; 21. Sealing ring; 22. Thread ring; 3. Connection assembly; 31. Connection ring; 32. Connection groove; 33. Connector; 34. Support frame; 35. Snap; 36. Dial plate; 37. Torsion spring; 38. Internal thread. Specific Embodiment

[0028] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0029] Refer to Figure 1 - Figure 3 As shown in [Figure Reference], an embodiment provided by the present invention: A high-pressure oil nozzle quick leak-proof connector for wheel disassembly and assembly, including an oil filling column 1 used to fix the overall device at the wheel interface. The right end of the oil filling column 1 is provided with an oil filling head 2 for injecting high-pressure oil into the wheel. The left end of the oil filling column 1 is provided with a connection assembly 3 for connecting an oil filling gun and the oil filling column 1. The outer wall of the oil filling column 1 is provided with an external thread 11 for fixing the oil filling column 1. The connection assembly 3 includes a connector 33 for fixing the overall connection assembly 3. The connector 33 is inserted into the left end of the oil filling column 1. After the connector 33 is inserted into the interior of the oil filling column 1, the two cannot rotate relative to each other. The inner wall of the connector 33 is provided with an internal thread 38 for connecting an oil filling gun.

[0030] Refer to Figure 1 - Figure 3 As shown in [Figure Reference], the left end of the oil filling head 2 is provided with a sealing ring 21 for increasing the connection tightness between the oil filling head 2 and the oil filling column 1. The right end of the oil filling column 1 is provided with a sealing groove 12 for accommodating the sealing ring 21. The sealing groove 12 and the sealing ring 21 are adapted to each other. The left end of the sealing ring 21 is provided with a thread ring 22 for fixing the oil filling head 2. The left end of the sealing groove 12 is provided with a thread groove 13 for accommodating the thread ring 22. The thread ring 22 and the thread groove 13 are adapted to each other. By screwing the oil filling head 2, the thread ring 22 can be driven to engage with the thread groove 13, thus driving the connection tightness between the oil filling head 2 and the oil filling column 1.

[0031] Refer to Figure 1 - Figure 3The connecting assembly 3 also includes a connecting ring 31 for connecting the oil filling column 1 and the connecting head 33. The right end of the connecting ring 31 is fixedly connected to the left end of the oil filling column 1. The oil filling column 1 can be fixed by fixing the connecting ring 31. The front end of the connecting head 33 is fixedly connected to a support frame 34 for supporting the rotation of the buckle 35. The outer wall of the support frame 34 is rotatably connected to the buckle 35 for fixing the connecting ring 31. The outer wall of the connecting ring 31 is provided with a connecting groove 32 for accommodating the buckle 35. The right end of the buckle 35 is set to a triangle. The connecting groove 32 and the buckle 35 is adapted to each other. When the buckle 35 is inserted into the interior of the connecting groove 32, the buckle 35 will contact the plane of the inner wall of the connecting groove 32 with its plane, so that the connecting ring 31 will be restricted from moving to the right and separating from the connecting head 33. The outer wall of the support frame 34 is fixedly connected to a torsion spring 37 for limiting the rotation of the buckle 35. The bottom end of the torsion spring 37 is fixedly connected to the inner wall of the buckle 35. The torsion spring 37 will always pull the buckle 35 to prevent it from detaching from the interior of the connecting groove 32. The left end of the buckle 35 is fixedly connected to a dial plate 36 for facilitating the operator to move the buckle 35.

[0032] Working principle: When oiling is required, the oiling head 2 can be inserted into the right end of the oiling column 1 first. At this time, the sealing ring 21 will be driven to insert into the inside of the sealing groove 12. Then, the threaded ring 22 can be driven to rotate by rotating the oiling head 2, so that the threaded ring 22 can be driven to engage with the threaded groove 13. The oiling head 2 and the oiling column 1 can be connected together through the cooperation of the threaded ring 22 and the threaded groove 13.

[0033] When it is necessary to connect the oil filling column 1 and the connecting head 33, the connecting head 33 can be installed at the gun head of the oil filling gun through the internal thread 38, and then the two sets of dial plates 36 can be pressed at the same time to drive the two sets of buckles 35 to rotate open, and then the oil filling column 1 can be inserted into the right end of the connecting head 33. When the oil filling column 1 and the connecting head 33 are fully inserted, the dial plate 36 can be released, and the torsion spring 37 will pull the buckle 35 to drive it to rotate inward and insert it into the interior of the connecting groove 32. In this way, the connecting ring 31 can be fixed, and the oil filling column 1 and the connecting head 33 will also be connected together. Since there is no need for relative movement between the components during the oil filling process, and the torsion spring 37 will always pull the buckle 35, the buckle 35 will not detach from the interior of the connecting groove 32 at will.

[0034] When all the components are connected, the oil filling column 1 and the oil filling head 2 can be inserted into the wheel. Then, the connecting head 33 can be rotated to drive the gun head part of the oil filling gun and the oil filling column 1 to rotate. The rotation of the oil filling column 1 will drive the external thread 11 to engage with the internal thread of the wheel. In this way, the entire device can be fixed inside the wheel, and then the oiling operation can be started.

[0035] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. High-pressure oil nozzle quick leak-proof joint for wheel disassembly and assembly, including an oil injection column (1), characterized in that: At the right end of the oil injection column (1), an oil injection head (2) is provided. At the left end of the oil injection column (1), a connection assembly (3) is provided. An external thread (11) is provided on the outer wall of the oil injection column (1). The connection assembly (3) includes a connection head (33). The connection head (33) is inserted into the left end of the oil injection column (1), and an internal thread (38) is provided on the inner wall of the connection head (33).

2. The high-pressure nozzle quick leak-proof joint for wheel disassembly and assembly according to claim 1, characterized in that: A sealing ring (21) is provided at the left end of the oil injection head (2), and a sealing groove (12) is provided at the right end of the oil injection column (1). The sealing groove (12) and the sealing ring (21) are adapted to each other.

3. The high-pressure nozzle quick anti-leak joint for wheel disassembly and assembly according to claim 2, characterized in that: A threaded ring (22) is provided at the left end of the sealing ring (21), and a threaded groove (13) is provided at the left end of the sealing groove (12). The threaded ring (22) and the threaded groove (13) are adapted to each other.

4. The high-pressure nozzle quick leak-proof joint for wheel disassembly and assembly according to claim 1, characterized in that: The connection assembly (3) further includes a connection ring (31). The right end of the connection ring (31) is fixedly connected to the left end of the oil injection column (1).

5. The high-pressure nozzle quick anti-leak joint for wheel disassembly and assembly according to claim 4, characterized in that: A support frame (34) is fixedly connected to the front end of the connection head (33). A buckle (35) is rotatably connected to the outer wall of the support frame (34). A connection groove (32) is provided on the outer wall of the connection ring (31).

6. The high-pressure nozzle quick anti-leak joint for wheel disassembly and assembly according to claim 5, characterized in that: The right end of the buckle (35) is triangular, and the connection groove (32) and the buckle (35) are adapted to each other.

7. The high-pressure nozzle quick leak-proof joint for wheel disassembly and assembly according to claim 5, characterized in that: A torsion spring (37) is fixedly connected to the outer wall of the support frame (34), and the bottom end of the torsion spring (37) is fixedly connected to the inner wall of the buckle (35).

8. The high-pressure nozzle quick anti-leak joint for wheel disassembly and assembly according to claim 5, characterized in that: A dial plate (36) is fixedly connected to the left end of the buckle (35).

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