Gearbox hollow pipe sealing structure

Abstract

The utility model discloses a gearbox hollow pipe sealing structure which comprises a gearbox, a main shaft, a hollow pipe, a first sealing mechanism and a second sealing mechanism, the main shaft is arranged on one side of the gearbox, the hollow pipe penetrates through the main shaft and the gearbox, the first sealing mechanism is arranged in the hollow pipe, and the second sealing mechanism is arranged in the hollow pipe. A first sealing mechanism is arranged at one end of the hollow pipe, a second sealing mechanism is arranged at one end of the hollow pipe, the first sealing mechanism is arranged, a hose is arranged in the hollow pipe, and a slip ring communication cable penetrates through the hose, so that the hose plays a role in isolating the slip ring cable, and oil is prevented from entering the slip ring and the slip ring cable; on the basis that an O-shaped sealing ring is used for sealing, a first sealing flat washer, a second sealing flat washer, a first spring washer and a second spring washer are additionally arranged on the O-shaped sealing ring, so that the sealing performance is improved, and meanwhile, the O-shaped sealing ring is prevented from being damaged and losing efficacy.

Description

Technical Field

[0001] This utility model relates to the field of gearbox hollow tube technology, and more specifically, to a gearbox hollow tube sealing structure. Background Technology

[0002] A hollow tube in a gearbox is a component inside the gearbox, typically used to hold and transport lubricating oil or other media.

[0003] In existing technologies, after long-term operation, the O-ring seals at the connection seals of the hollow tubes of some gearboxes may fail, causing gear oil to leak out of the hollow tubes, resulting in contamination and corrosion damage to the slip rings and cables, and poor sealing performance.

[0004] No effective solutions have yet been proposed to address the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a hollow tube sealing structure for gearboxes to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] The gearbox hollow tube sealing structure includes a gearbox, a main shaft, a hollow tube, a first sealing mechanism, and a second sealing mechanism. The main shaft is provided on one side of the gearbox, and the hollow tube passes through the main shaft and the gearbox. The first sealing mechanism is provided inside the hollow tube, and the second sealing mechanism is provided at one end of the hollow tube.

[0008] As a further embodiment of this utility model, the first sealing mechanism includes a flexible tube that passes through the hollow tube, and a cable is inserted inside the flexible tube.

[0009] As a further embodiment of this utility model, the second sealing mechanism includes a first sealing flat washer, a first spring washer, an O-ring, a second spring washer, and a second sealing flat washer.

[0010] As a further embodiment of this utility model, a placement groove is provided at one end of the hollow tube, and the first sealing flat washer, the first spring washer, the O-ring, the second spring washer and the second sealing flat washer are placed in the placement groove in sequence.

[0011] As a further embodiment of this utility model, both the first sealing flat gasket and the second sealing flat gasket are made of 304 stainless steel.

[0012] As a further embodiment of this utility model, both the first spring washer and the second spring washer are made of stainless steel.

[0013] As a further embodiment of this invention, the O-ring is made of rubber.

[0014] As a further embodiment of this utility model, one end of the hollow tube is fixedly connected to the oil pipeline via a flange.

[0015] The beneficial effects of this utility model are as follows: By setting a first sealing mechanism, a flexible tube is installed inside the hollow tube, through which the slip ring communication cable passes, so that the flexible tube can isolate the slip ring cable and prevent oil from entering the slip ring and slip ring cable. By setting a second sealing mechanism, a first sealing flat washer and a second sealing flat washer, as well as a first spring washer and a second spring washer are added on the basis of the O-ring seal, which increases the sealing performance and prevents the O-ring seal from being damaged and failing. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the hollow tube sealing structure in the gearbox according to an embodiment of the present utility model;

[0018] Figure 2 This is a schematic diagram of the second sealing mechanism of the gearbox hollow tube sealing structure according to an embodiment of the present utility model;

[0019] Figure 3 This is a cross-sectional view of the hollow tube sealing structure in the gearbox according to an embodiment of the present utility model;

[0020] Figure 4 This is a cross-sectional view of the second sealing mechanism of the gearbox hollow tube sealing structure according to an embodiment of the present utility model.

[0021] In the picture:

[0022] 1. Gearbox; 2. Main shaft; 3. Hollow tube; 4. First sealing mechanism; 5. Second sealing mechanism; 6. Hose; 7. First sealing flat washer; 8. First spring washer; 9. O-ring seal; 10. Second spring washer; 11. Second sealing flat washer; 12. Placement groove. Detailed Implementation

[0023] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0024] According to an embodiment of the present invention, a sealing structure for a hollow tube in a gearbox is provided.

[0025] Please refer to the instruction manual appendix. Figure 1-4 According to an embodiment of the present invention, the gearbox hollow tube sealing structure includes a gearbox 1, a main shaft 2, a hollow tube 3, a first sealing mechanism 4, and a second sealing mechanism 5. The main shaft 2 is provided on one side of the gearbox 1, and the hollow tube 3 passes through the main shaft 2 and the gearbox 1. The first sealing mechanism 4 is provided inside the hollow tube 3, and the second sealing mechanism 5 is provided at one end of the hollow tube 3. The first sealing mechanism 4 includes a flexible tube 6, which passes through the hollow tube 3, and a cable is inserted inside the flexible tube 6.

[0026] By setting the first sealing mechanism 4, a flexible tube is installed inside the hollow tube 3, through which the slip ring communication cable passes, so that the flexible tube can isolate the slip ring cable and prevent oil from entering the slip ring and slip ring cable.

[0027] In one embodiment, please refer to the appendix to the specification. Figure 1-4 As a further embodiment of this utility model, the second sealing mechanism 5 includes a first sealing flat washer 7, a first spring washer 8, an O-ring 9, a second spring washer 10, and a second sealing flat washer 11. One end of the hollow tube 3 is provided with a placement groove 12. The first sealing flat washer 7, the first spring washer 8, the O-ring 9, the second spring washer 10, and the second sealing flat washer 11 are placed sequentially in the placement groove 12. The first sealing flat washer 7 and the second sealing flat washer 11 are both made of 304 stainless steel, the first spring washer 8 and the second spring washer 10 are both made of stainless steel, and the O-ring 9 is made of rubber. One end of the hollow tube 3 is fixedly connected to the oil pipeline through a flange.

[0028] By setting a second sealing mechanism 5, a first sealing flat washer 7 and a second sealing flat washer 11, as well as a first spring washer 8 and a second spring washer 10 are added to the O-ring seal 9 to increase the sealing performance and prevent the O-ring seal 9 from being damaged or failing.

[0029] In use, drill a screw hole on the end cap of the output end of the hollow tube 3, insert a flexible tube into the output end of the hollow tube 3, and then place the first sealing flat washer 7, the first spring washer 8, the O-ring seal 9, the second spring washer 10, and the second sealing flat washer 11 into the placement groove 12 in sequence. One end of the hollow tube 3 is fixedly connected to the oil pipeline through a flange. By setting the first sealing mechanism 4, a flexible tube is installed inside the hollow tube 3, and the slip ring communication cable passes through the flexible tube, so that the flexible tube can isolate the slip ring cable and prevent oil from entering the slip ring and slip ring cable. By setting the second sealing mechanism 5, the first sealing flat washer 7 and the second sealing flat washer 11, as well as the first spring washer 8 and the second spring washer 10, are added on the basis of the sealing of the O-ring seal 9, which increases the sealing performance and prevents the O-ring seal 9 from being damaged and failing.

[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A hollow pipe (3) sealing structure in a gear box, comprising a gear box (1), a main shaft (2), a hollow pipe (3), a first sealing mechanism (4) and a second sealing mechanism (5), characterized in that: The gear box (1) is provided with a main shaft (2) on one side, the hollow pipe (3) penetrates the main shaft (2) and the gear box (1), the inside of the hollow pipe (3) is provided with a first sealing mechanism (4), one end of the hollow pipe (3) is provided with a second sealing mechanism (5).

2. The gearbox hollow tube (3) sealing structure according to claim 1, characterized in that: The first sealing mechanism (4) comprises a hose (6), the hose (6) penetrates the hollow pipe (3), and a cable is inserted into the inside of the hose (6).

3. The gearbox hollow tube (3) sealing structure according to claim 1, characterized in that: The second sealing mechanism (5) comprises a first sealing flat washer (7), a first spring washer (8), an O-shaped sealing ring (9), a second spring washer (10) and a second sealing flat washer (11).

4. The gearbox hollow tube (3) sealing structure according to claim 3, characterized in that: One end of the hollow pipe (3) is provided with a placing groove (12), and the first sealing flat washer (7), the first spring washer (8), the O-shaped sealing ring (9), the second spring washer (10) and the second sealing flat washer (11) are sequentially placed in the placing groove (12).

5. The gearbox hollow tube (3) sealing structure according to claim 4, characterized in that: The first sealing flat washer (7) and the second sealing flat washer (11) are both made of 304 stainless steel.

6. The gearbox hollow tube (3) sealing structure according to claim 4, characterized in that: The first spring washer (8) and the second spring washer (10) are both made of stainless steel.

7. The gearbox hollow tube (3) sealing structure according to claim 4, characterized in that: The O-shaped sealing ring (9) is made of rubber.

8. The gearbox hollow tube (3) sealing structure according to claim 1, characterized in that: One end of the hollow pipe (3) is fixedly connected with an oil pipeline through a flange.

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