Ggland sealing device for high-speed gearbox
By designing a combined sealing structure of self-made joint components and rubber gaskets in the high-speed gearbox, the problem of oil leakage from the gland was solved, and good sealing effect and equipment stability were achieved.
Patent Information
- Application Number
- CN202422620346.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-10-29
AI Technical Summary
The gland of the high-speed gearbox is prone to oil leakage at high linear speeds, affecting the stable operation of the equipment.
A sealing device including a self-made joint assembly was designed. By combining a self-made joint body and a rubber gasket, a sealing isolation structure was added to prevent oil mist and air pressure from leaking out from the inside of the gearbox.
It effectively prevents oil mist and air pressure from entering the gearbox, completely solves the oil leakage problem, and improves the sealing performance and stability of the equipment.
Smart Images
Figure CN223375047U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of gear boxes, in particular to a gland sealing device for a high-speed gear box. Background Art
[0002] Gearboxes are important components widely used in mechanical transmissions. The main function of the cable glands used in high-speed gearboxes is to provide sealing performance for the threading holes. Usually, cable glands for high-speed gearboxes are purchased parts. The cable glands have their own external threads and are directly connected to the internal threaded holes on the gearbox. Since the linear speed at the meshing point of the gears in the high-speed gearbox is relatively high, the oil stirring speed is very fast, and the oil mist inside the gearbox is relatively large. At the same time, there will be a certain amount of air pressure squeezing out of the high-speed gearbox. After the cable gland parts are connected to the box body, the threading holes in the middle of the cable gland often leak oil, and after a period of time, there will be obvious oil leakage. Long-term oil leakage from the high-speed gearbox will have a serious impact on the stable operation of the equipment on site. For this reason, this application proposes a cable gland sealing device for a high-speed gearbox. Utility Model Content
[0003] In order to solve the problems raised in the above-mentioned background technology, the present invention provides the following technical solutions: a gland sealing device for a high-speed gearbox, comprising a homemade joint assembly and a gearbox body, the homemade joint assembly comprising homemade joint body one and homemade joint body two, homemade joint body one is inserted through the box wall of the gearbox body, homemade joint body two is connected to the end of homemade joint body one located outside the gearbox body, a connecting groove is provided at the end of homemade joint body two away from homemade joint body one, a gland is threadedly connected to the connecting groove at one end of homemade joint body two, a rubber gasket is provided between the butt joint of homemade joint body one and homemade joint body two, a water heating elbow is fixedly installed at the end of homemade joint body one located inside the gearbox body, and an electric control line extending to homemade joint body one and homemade joint body two is inserted at the open end of the water heating elbow.
[0004] Furthermore, both the homemade joint body 1 and the homemade joint body 2 have inner holes that pass through to the left and right, and the inner holes of the homemade joint body 1 and the homemade joint body 2 are connected to each other.
[0005] Furthermore, the number of rubber washers is four, and the rubber washers are located between the joints of the inner holes of the self-made joint body 1 and the self-made joint body 2.
[0006] Furthermore, the opening at one end of the water heating elbow is downward away from the self-made joint body.
[0007] Furthermore, a combined washer 1 is provided at the connection between the self-made joint body 1 and the gear box body and at the connection between the self-made joint body 1 and the self-made joint body 2.
[0008] Furthermore, a combined washer 2 is provided at the connection between the self-made joint body 2 and the gland.
[0009] Compared with the prior art, the beneficial effects of the present invention are:
[0010] To address oil leakage from cable gland threading holes, the connection structure has been improved based on the factors contributing to oil leakage. A sealing isolation device has been added between the cable gland and the high-speed gearbox. This effectively traps oil mist and air pressure inside the high-speed gearbox. The housing is connected to one end of the sealing isolation device, which is then connected to the cable gland. This isolation isolates air pressure and oil mist within the gearbox. The isolated air pressure and oil mist are then sealed by the secondary sealing properties of the cable gland, completely eliminating the oil leakage problem. This device effectively addresses leakage caused by air pressure and oil mist, offering excellent sealing effectiveness and high practicality. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0013] Figure 2 It is a structural schematic diagram of a partial section of the utility model;
[0014] In the figure: 1. Plumbing elbow; 2. Self-made joint body 1; 3. Combined gasket; 4. Rubber gasket; 5. Self-made joint body 2; 6. Cable gland; 7. Electric control line; 8. Gear box. DETAILED DESCRIPTION
[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only 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 ordinary technicians in this field without making creative work are within the scope of protection of the present invention.
[0016] Depend on Figure 1-2It is given that the utility model includes a homemade joint assembly and a gear box body 8, the homemade joint assembly includes a homemade joint body 1 2 and a homemade joint body 2 5, the homemade joint body 1 2 is inserted through the box wall of the gear box body 8, the homemade joint body 2 5 is connected to the end of the homemade joint body 1 2 located outside the gear box body 8, the homemade joint body 2 5 is provided with a connecting groove at the end of the homemade joint body 2 5 away from the homemade joint body 1 2, and a gland 6 is threadedly connected to the connecting groove at one end of the homemade joint body 2 5, a rubber gasket 4 is provided between the joint of the homemade joint body 1 2 and the homemade joint body 2 5, a water heating elbow 1 is fixedly installed at the end of the homemade joint body 1 2 located inside the gear box body 8, and an electric control line 7 extending to the homemade joint body 1 2 and the homemade joint body 2 5 is inserted at the open end of the water heating elbow 1.
[0017] like Figure 1 and Figure 2 As shown, the interiors of the self-made joint body 1 2 and the self-made joint body 2 5 are both provided with inner holes that pass through to the left and right, and the inner holes inside the self-made joint body 1 2 and the self-made joint body 2 5 are butt-connected.
[0018] like Figure 1 and Figure 2 As shown, there are four rubber gaskets 4, and the rubber gaskets 4 are located between the joints of the inner holes of the self-made joint body 1 2 and the self-made joint body 2 5. The four layers of rubber gaskets 4 can achieve an effective isolation and sealing effect.
[0019] like Figure 1 and Figure 2 As shown, the opening of the water heating elbow 1 is downward away from the self-made joint body 2, so that the oil mist isolated by the seal can be transformed into oil liquid and then slide from the water heating elbow 1 into the gear box body 8.
[0020] like Figure 1 and Figure 2 As shown, the connection between the self-made joint body 2 and the gear box body 8 and the connection between the self-made joint body 2 and the self-made joint body 2 5 are both provided with a combined gasket 3, which can further improve the sealing performance of the connection between the gear box body 8, the self-made joint body 2 and the self-made joint body 2 5.
[0021] like Figure 1 and Figure 2 As shown, a combination gasket 2 is provided at the connection between the self-made joint body 2 5 and the gland 6 , and the combination gasket 2 can increase the sealing performance of the connection between the self-made joint body 2 5 and the gland 6 .
[0022] Install according to the structure in the attached figure. The oil mist inside the gear box body 8 enters the inner hole of the self-made joint body 2 from the plumbing elbow 1. Since the gears of the gear box body 8 continuously stir the oil and the temperature of the oil mist increases during operation, the oil mist inside the gear box body 8 tends to expand outward, causing the oil mist to flow outward from the inner hole of the self-made joint body 2. The oil mist in this state diffuses quickly and continuously diffuses and impacts the rubber gasket 4. After the oil mist passes through the sealing isolation of the four layers of rubber gaskets 4, there is almost no oil mist or very little oil mist. Most of the sealed and isolated oil mist forms oil liquid and slides from the plumbing elbow 1 to the inside of the gear box body 8. A very small amount of oil mist reaches the inner hole of the self-made joint body 5 and then passes through the secondary seal of the gland 6 itself, which can be completely sealed without any leakage.
[0023] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.
[0024] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A gland sealing device for a high-speed gearbox, comprising a self-made joint assembly and a gearbox body (8), characterized in that: The self-made joint assembly comprises a self-made joint body (2) and a self-made joint body (5), the self-made joint body (2) is inserted through the box wall of the gear box (8), the self-made joint body (2) is connected to the end of the self-made joint body (2) located outside the gear box (8), a connecting groove is provided at the end of the self-made joint body (5) away from the self-made joint body (2), a gland (6) is threadedly connected in the connecting groove at one end of the self-made joint body (5), a rubber gasket (4) is provided between the joint of the self-made joint body (2) and the self-made joint body (5), a water heating elbow (1) is fixedly installed at the end of the self-made joint body (2) located inside the gear box (8), and an electric control line (7) extending into the self-made joint body (2) and the self-made joint body (5) is inserted at the open end of the water heating elbow (1).
2. The gland sealing device for a high-speed gearbox according to claim 1, characterized in that: The interiors of the self-made joint body 1 (2) and the self-made joint body 2 (5) are both provided with inner holes that pass through left and right, and the inner holes inside the self-made joint body 1 (2) and the self-made joint body 2 (5) are butt-jointed and connected.
3. The cable gland sealing device for a high-speed gearbox according to claim 2, characterized in that: The number of the rubber washers (4) is four, and the rubber washers (4) are located between the butt joints of the inner holes of the self-made joint body 1 (2) and the self-made joint body 2 (5).
4. The gland sealing device for a high-speed gearbox according to claim 1, characterized in that: The water heating elbow (1) is away from the opening at one end of the self-made joint body (2) and faces downward.
5. The gland sealing device for a high-speed gearbox according to claim 1, characterized in that: The connection between the self-made joint body 1 (2) and the gear box body (8) and the connection between the self-made joint body 1 (2) and the self-made joint body 2 (5) are both provided with a combined washer 1 (3).
6. The cable gland sealing device for a high-speed gearbox according to claim 1, characterized in that: A second combined washer is provided at the connection between the second self-made joint body (5) and the gland (6).