Combined sealing structure for high-speed shaft of heavy-duty gearbox

Abstract

The utility model discloses a combined sealing structure for a high-speed shaft of a heavy-duty gear box, which comprises a positioning pipe, a sealing ring is arranged on one side of the positioning pipe, a connecting ring is arranged on one side of the sealing ring, a connecting pipe is arranged on one side of the positioning pipe, and a fixing nail is arranged on one side of the connecting pipe. A connecting shaft is arranged on one side of the connecting pipe, an external thread strip is arranged on the outer circle wall of the connecting shaft, and an oil injection opening is formed in the outer circle wall of the positioning pipe. According to the combined sealing structure for the high-speed shaft of the heavy-duty gearbox, the high-speed shaft can be combined and sealed through the positioning pipe, the sealing ring, the connecting ring and the connecting pipe, and the high-speed shaft can be effectively connected and used in cooperation through the connecting pipe, the fixing nail and the connecting shaft; the joint of the high-speed shaft can be combined, installed and effectively closed, the problem that oil leaks from the closed position of the high-speed shaft after long-time use is effectively solved, and lubricating oil is prevented from leaking out and being attached to the surface of the device.

Description

Technical Field

[0001] The utility model relates to the technical field of closed structures, in particular to a combined closed structure for a high-speed shaft of a heavy-loaded gear box. Background Art

[0002] Gearbox is a basic transmission device. It has a wide range of applications. For example, it is used in wind turbines. Gearbox is an important mechanical component that is widely used in wind turbines. Its main function is to transfer the power generated by the wind rotor to the generator and make it get the corresponding speed. Usually, the speed of the wind rotor is very low, far from the speed required by the generator. It must be achieved through the speed increase of the gear pair of the gearbox, so the gearbox is also called a speed increaser.

[0003] However, the sealing port of the high-speed shaft of the traditional gearbox is mostly one-piece, and oil leakage may occur at the sealing portion of the high-speed shaft after long-term use, which will cause waste of lubricating oil and adhere to the surface of the device and be difficult to clean. Utility Model Content

[0004] The purpose of the utility model is to provide a combined closed structure for a high-speed shaft of a heavy-duty gearbox, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a combined closed structure for a high-speed shaft of a heavy-loaded gearbox, comprising a positioning tube, a closed ring is provided on one side of the positioning tube, a connecting ring is provided on one side of the closed ring, a connecting tube is provided on one side of the positioning tube, a fixing nail is provided on one side of the connecting tube, a connecting shaft is provided on one side of the connecting tube, an outer circular wall of the connecting shaft is provided with an external thread strip, and an oil filling port is provided on the outer circular wall of the positioning tube.

[0006] Preferably, a closed slot is provided inside the positioning tube, and an oil storage tank is provided inside the positioning tube.

[0007] Preferably, the inner circular wall of the oil storage tank is provided with an inner semicircular clamping tube, and a steel ball is provided on one side of the inner semicircular clamping tube.

[0008] Preferably, the outer circular wall of the closed ring is provided with a closed rubber ring, and the inner circular wall of the connecting ring is provided with an inner closed clamping ring.

[0009] Preferably, the inner circular wall of the connecting pipe is provided with an internal thread strip, and the inner circular wall of the connecting pipe is provided with a through hole.

[0010] Preferably, the outer circular wall of the connecting pipe is provided with an outer semicircular groove, and the outer circular wall of the connecting pipe is provided with a connecting groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The combined closed structure for the high-speed shaft of a heavy-duty gearbox can be combined and closed by means of a positioning tube and a closed ring, a connecting ring and a connecting tube. The high-speed shaft can be effectively connected by means of a connecting tube and a fixing nail and a connecting shaft. When used in conjunction with each other, the connection of the high-speed shaft can be combined and installed and effectively closed, effectively solving the problem of oil leakage at the closed part of the high-speed shaft after long-term use, and preventing the lubricating oil from leaking and adhering to the surface of the device.

[0013] This combined closed structure for the high-speed shaft of a heavy-duty gearbox can form a closed space during assembly and add lubricating oil at the same time through the provided positioning tube, connecting tube and oil filling port, which can effectively reduce the resistance problem at the connection of the high-speed shaft. The connecting tube, fixing pins and connecting shaft can be used to synchronously transmit the frequency of the high-speed shaft rotation to the connecting tube, and they can be used in conjunction with each other to effectively reduce the rotational resistance of the high-speed shaft connection part and effectively improve the transmission efficiency of the high-speed shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional exploded view of the utility model;

[0015] Figure 2 This is an exploded view of the positioning tube of the utility model;

[0016] Figure 3 This is an exploded view of the closed loop of the utility model;

[0017] Figure 4 This is an exploded view of the connecting pipe of the utility model.

[0018] In the figure: 1. positioning tube; 2. closing ring; 3. connecting ring; 4. connecting tube; 5. fixing nail; 6. connecting shaft; 7. external thread strip; 8. oil filling port; 9. closing slot; 10. oil storage tank; 11. inner semicircular clamping tube; 12. steel ball; 13. closing rubber ring; 14. inner closing clamping ring; 15. inner thread strip; 16. through hole; 17. outer semicircular slot; 18. connecting slot. DETAILED DESCRIPTION

[0019] 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.

[0020] like Figure 1-4As shown, the utility model provides a technical solution: a combined closed structure for a high-speed shaft of a heavy-duty gear box, comprising a positioning tube 1, the positioning tube 1 is used to fix the position of a connecting tube 4 to ensure that the high-speed shaft will not be offset during rotation, a closed ring 2 is provided on one side of the positioning tube 1, the closed ring 2 is used to close both sides of the positioning tube 1 to ensure that the lubricating oil inside the positioning tube 1 will not flow out from the connection, a connecting ring 3 is provided on one side of the closed ring 2, the connecting ring 3 is used to connect the closed ring 2 and the connecting tube to ensure that the lubricating oil will not flow out from the connection of the connecting tube 4, a connecting tube 4 is provided on one side of the positioning tube 1, the connecting tube 4 is used to connect the high-speed shaft to ensure that the high-speed shaft can efficiently transmit kinetic energy, a fixing nail 5 is provided on one side of the connecting tube 4, the fixing nail 5 is used to connect the connecting shaft 6 and the connecting tube 4 to ensure that the high-speed shaft can drive the connecting shaft 6 and the connecting tube 4 to rotate when the high-speed shaft rotates, a connecting shaft 6 is provided on one side of the connecting tube 4, the connecting shaft 6 is used to connect the high-speed shaft to ensure that the kinetic energy of the high-speed shaft can be directly transmitted to the connecting shaft 6, the outer cylindrical wall of the connecting shaft 6 An external thread strip 7 is provided, and the external thread strip 7 is used in conjunction with the internal thread strip 15 to ensure that the connecting shaft 6 and the connecting pipe 4 can be quickly connected. The outer circular wall of the positioning tube 1 is provided with an oil filling port 8, and the oil filling port 8 is used to guide the lubricating oil into the closed space formed by the positioning tube 1 and the connecting pipe 4 to ensure that the steel ball 12 can rotate quickly therein. The interior of the positioning tube 1 is provided with a closed card groove 9, and the closed card groove 9 is used to connect the closed ring 2 to ensure that the lubricating oil does not flow out from the connection. The interior of the positioning tube 1 is provided with an oil storage tank 1 0, the oil storage tank 10 is used to store lubricating oil to ensure that the steel ball 12 can rotate quickly inside it to reduce friction. The inner wall of the oil storage tank 10 is provided with an inner semicircular clamping tube 11, which is used in conjunction with the outer semicircular clamping groove 17 to ensure that the steel ball 12 can rotate quickly along a predetermined track to reduce friction. A steel ball 12 is provided on one side of the inner semicircular clamping tube 11. The steel ball 12 is used to reduce the rotational friction of the connection part of the positioning tube 1 and the connecting tube 4 to ensure that the kinetic energy transmitted by the high-speed shaft will not be excessively lost.

[0021] The outer circumferential wall of the closed ring 2 is provided with a closed rubber ring 13, which is used to connect the closed ring 2 and the closed card slot 9 to ensure that there is no oil leakage at the connection between the positioning tube 1 and the connecting tube 4. The inner circumferential wall of the connecting ring 3 is provided with an inner closed card ring 14, which is used in conjunction with the connecting card slot 18 to ensure that there is no oil leakage at the connection between the positioning tube 1 and the connecting tube 4. The inner circumferential wall of the connecting tube 4 is provided with an inner thread strip 15, which is used in conjunction with the outer thread strip 7 to ensure that the connecting shaft 6 and the connecting tube 4 can be quickly connected. The inner circular wall of the connecting tube 4 is provided with a through hole 16, which is used in conjunction with the fixing nail 5 to ensure that the connecting shaft 6 and the connecting tube 4 can be tightly connected. The outer circular wall of the connecting tube 4 is provided with an outer semicircular groove 17, which is used in conjunction with the inner semicircular clamping tube 11 to ensure that the steel ball 12 can rotate quickly along a predetermined track to reduce friction. The outer circular wall of the connecting tube 4 is provided with a connecting groove 18, which is used in conjunction with the inner closed clamp ring 14 to ensure that there will be no oil leakage at the connection between the positioning tube 1 and the connecting tube 4.

[0022] Working principle: The staff first connects the connecting ring 3 to the connecting pipe 4 through the inner closed clamp ring 14, and then connects the connecting ring 3 to the closed ring 2, and then connects it to the positioning pipe 1 through the closed rubber ring 13 to cooperate with the connecting pipe 4 to form an annular space. When connecting, put the steel ball 12 on the inner side of the inner semicircular clamping pipe 11 to cooperate with the outer semicircular clamping groove 17 to clamp the steel ball 12, and finally close the other side of the positioning pipe 1 through the closed ring 2 and the connecting ring 3 to form a closed space, and then connect the connecting pipe 4 to the transmission component through the internal thread strip 15, and then connect the connecting shaft 6 to the high-speed shaft, and drive the external thread strip 7 on the connecting shaft 6 to cooperate with the internal thread strip 15 by rotating the high-speed shaft, and then pass the fixing nail 5 through the connecting shaft 6 and the through-hole 16 on the connecting pipe 4 to fix it, and complete the installation of the combined seal.

[0023] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined closed structure for a high-speed shaft of a heavy-duty gearbox, comprising a positioning tube (1), characterized in that: A closed ring (2) is provided on one side of the positioning tube (1), a connecting ring (3) is provided on one side of the closed ring (2), a connecting tube (4) is provided on one side of the positioning tube (1), a fixing nail (5) is provided on one side of the connecting tube (4), a connecting shaft (6) is provided on one side of the connecting tube (4), an external thread strip (7) is provided on the outer circular wall of the connecting shaft (6), and an oil filling port (8) is provided on the outer circular wall of the positioning tube (1).

2. A combined closed structure for a high-speed shaft of a heavy-duty gearbox according to claim 1, characterized in that: A closed slot (9) is provided inside the positioning tube (1), and an oil storage tank (10) is provided inside the positioning tube (1).

3. The combined closed structure for a high-speed shaft of a heavy-duty gearbox according to claim 2, characterized in that: An inner semicircular clamping tube (11) is arranged on the inner circular wall of the oil storage tank (10), and a steel ball (12) is arranged on one side of the inner semicircular clamping tube (11).

4. The combined closed structure for a high-speed shaft of a heavy-duty gearbox according to claim 1, characterized in that: The outer circular wall of the closed ring (2) is provided with a closed rubber ring (13), and the inner circular wall of the connecting ring (3) is provided with an inner closed clamping ring (14).

5. The combined closed structure for a high-speed shaft of a heavy-duty gearbox according to claim 1, characterized in that: The inner circular wall of the connecting pipe (4) is provided with an internal thread strip (15), and the inner circular wall of the connecting pipe (4) is provided with a through hole (16).

6. The combined closed structure for a high-speed shaft of a heavy-duty gearbox according to claim 1, characterized in that: The outer circular wall of the connecting pipe (4) is provided with an outer semicircular clamping groove (17), and the outer circular wall of the connecting pipe (4) is provided with a connecting clamping groove (18).

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