Gearbox with good sealing performance
By using magnetic oil seal and telescopic pin and slot in the gear box to coordinate design, the problem of poor sealing performance of the gear box is solved, achieving efficient sealing and long life.
Patent Information
- Application Number
- CN202421456249.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-02-28
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
Due to poor sealing performance of the gear box, lubricant leakage, impurities intrusion and poor lubrication, affecting normal operation and may damage the entire mechanical system.
The magnetic oil seal and telescopic pin and the slot are designed to achieve efficient sealing through magnetic field action and lubricating oil lubrication. The telescopic pin is closely matched with the magnetic oil seal under the constraints of the slot to prevent the entry of lubricating oil or impurities.
It significantly improves the sealing performance of the gearbox, extends the service life, and reduces lubricant leakage and impurity intrusion caused by seal failure.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gear boxes, in particular to a gear box with good sealing performance. Background Art
[0002] As an important component of mechanical equipment, gearboxes are widely used in wind turbines, conveying equipment, chemical equipment, environmental protection machinery and other fields. Its core function is to transmit power to generators or other working parts, and to achieve speed change, direction change or change of transmission torque. However, in actual operation, gearboxes often face a series of problems due to poor sealing performance, such as lubricating oil leakage, impurity intrusion and poor lubrication. These problems not only affect the normal operation of the gearbox, but may also cause damage to the entire mechanical system.
[0003] Traditional gearbox sealing methods mostly use mechanical seals or rubber seals, but these sealing methods are often difficult to maintain stable sealing performance after long-term use or in harsh working environments. Mechanical seals may have problems such as friction and wear, and seal aging, while rubber seals may fail due to factors such as temperature changes and pressure fluctuations. Utility Model Content
[0004] (I) Purpose of the utility model
[0005] In view of this, the purpose of the present invention is to provide a gear box with good sealing performance, which solves the problems raised in the above background.
[0006] (II) Technical solution
[0007] A gearbox with good sealing performance comprises a gearbox body, a top cover is installed on the top of the gearbox body, an input end is provided on one side of the gearbox body and the top cover, and a fixing piece is installed on the outer surface of the input end, a thread is provided on the outer surface of the fixing piece, and a connecting ring is movably installed on the outer surface of the fixing piece, a plurality of groups of grooves are provided on the outer surface of the connecting ring, and a magnetic oil seal is movably installed on the inner wall of the connecting ring, a plurality of groups of grooves are provided on the outer surface of the magnetic oil seal, and a spring is installed in the groove, one end of the spring is connected to a telescopic pin, and the telescopic pin can be extended and retracted by the action of the spring, so that people only need to press the telescopic pin to remove the magnetic oil seal.
[0008] Preferably, the outer sides of the gearbox body and the top cover are respectively fixedly mounted with a first connecting piece and a second connecting piece, the outer surface of the first connecting piece is provided with multiple sets of screws, and the outer surface of the second connecting piece is provided with multiple sets of screw holes, and the gearbox body and the top cover are quickly and firmly connected by providing screws and screw holes. This connection method not only simplifies the installation steps and improves the assembly efficiency, but also ensures the overall structural stability of the gearbox, which helps to extend its service life.
[0009] Preferably, an abutment block is fixedly mounted on the outer surface of the top end of the second connecting member, and the outer surface of the abutment block is wrapped with rubber, so that when the gear box body and the top cover are closed, the abutment block can fit tightly in the abutment groove of the first connecting member, thereby further enhancing the sealing of the gear box as a whole. At the same time, the rubber material wrapped on the outer surface of the abutment block has good elasticity and sealing properties, which can further improve the sealing effect.
[0010] Preferably, an abutment groove is provided on the outer surface of the bottom end of the first connecting member, and the abutment groove serves as a limiting connection.
[0011] Preferably, a through slot is formed at the top of the top cover, and a heat sink is fixedly installed in the through slot. The heat sink helps to discharge the heat inside the gear box in time, reduce the working temperature, and improve the working efficiency and stability of the gear box.
[0012] Preferably, a slide plate is movably mounted on the inner wall of the top cover slot, and a handle is fixedly mounted on the outer surface of the slide plate. The slide plate can be closed to block the heat sink, thereby protecting the heat sink and other components inside the gear box from the external environment. The slide plate can be conveniently closed by pulling the handle, thereby adjusting the working state of the gear box to adapt to different environmental requirements.
[0013] Preferably, the outer surface of the connecting ring is serrated, and the serrated outer surface increases the friction of human skin, thereby facilitating the rotation and disassembly of the connecting ring.
[0014] It can be seen from the above technical solutions that the present application has the following beneficial effects:
[0015] 1. The utility model uses a connecting ring as a support and fixing structure for the magnetic oil seal, providing a stable installation foundation for the magnetic oil seal. This design not only simplifies the installation process of the magnetic oil seal, but also ensures that it can maintain stable sealing performance during use. Through the action of the magnetic field and lubricating oil lubrication, the magnetic oil seal achieves an efficient and lasting sealing effect. Compared with traditional mechanical seals or rubber seals, magnetic oil seals have better sealing performance and longer service life, and can significantly reduce the problems of lubricating oil leakage and impurity intrusion caused by sealing failure.
[0016] 2. The utility model further enhances the sealing performance of the gearbox through the matching design of the telescopic pin and the slot. During the continuous operation of the gearbox, the telescopic pin is tightly matched with the magnetic oil seal under the constraint of the slot, effectively blocking the entry of lubricating oil or impurities. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;
[0018] Figure 2 This is a schematic diagram of the first explosion structure of the utility model;
[0019] Figure 3 This is a schematic diagram of the second explosion structure of the utility model;
[0020] Figure 4 For this utility model Figure 2 The enlarged schematic diagram at A in the middle;
[0021] Figure 5 For this utility model Figure 2 The enlarged schematic diagram of point B in the middle;
[0022] Figure 6 For this utility model Figure 3 Enlarged schematic diagram at point C in the middle.
[0023] In the figure: 1. gearbox body; 2. top cover; 3. first connecting piece; 4. second connecting piece; 5. screw; 6. connecting ring; 7. magnetic oil seal; 8. telescopic pin; 9. slide plate; 911. heat sink; 912. handle; 111. fixing piece; 811. slot; 411. abutment block; 412. screw hole; 413. abutment slot. DETAILED DESCRIPTION
[0024] The following description is merely exemplary in nature and is not intended to limit the present disclosure, application, and use. It should be understood that in all of these figures, the same or similar reference numerals indicate the same or similar parts and features. The various drawings only schematically represent the concepts and principles of the embodiments of the present disclosure, and do not necessarily show the specific dimensions and proportions of the various embodiments of the present disclosure. Specific parts in specific drawings may be exaggerated to illustrate the relevant details or structures of the embodiments of the present disclosure.
[0025] See also Figure 1-6 , an embodiment provided by the utility model:
[0026] A gearbox with good sealing performance comprises a gearbox body 1, a top cover 2 is installed on the top of the gearbox body 1, an input end is provided on one side of the gearbox body 1 and a fixing piece 111 is installed on the outer surface of the input end, a thread is provided on the outer surface of the fixing piece 111, a connecting ring 6 is movably installed on the outer surface of the fixing piece 111, a plurality of groups of slots 811 are provided on the outer surface of the connecting ring 6, a magnetic oil seal 7 is movably installed on the inner wall of the connecting ring 6, a plurality of groups of grooves are provided on the outer surface of the magnetic oil seal 7, a spring is installed in the groove, a telescopic pin 8 is connected to one end of the spring, the telescopic pin 8 can be telescoped by the action of the spring, so that people only need to press the telescopic pin 8 to remove the magnetic oil seal 7.
[0027] Furthermore, the first connecting member 3 and the second connecting member 4 are fixedly installed on the outer sides of the gearbox body 1 and the top cover 2, respectively. The outer surface of the first connecting member 3 is provided with multiple sets of screw rods 5, and the outer surface of the second connecting member 4 is provided with multiple sets of screw holes 412. By providing the screw rods 5 and the screw holes 412, the gearbox body 1 and the top cover 2 are quickly and firmly connected. This connection method not only simplifies the installation steps and improves the assembly efficiency, but also ensures the overall structural stability of the gearbox, which helps to extend its service life.
[0028] Furthermore, an abutment block 411 is fixedly mounted on the outer surface of the top end of the second connecting member 4, and the outer surface of the abutment block 411 is wrapped with rubber, so that when the gear box body and the top cover are closed, the abutment block 411 can fit tightly in the abutment groove 413 of the first connecting member 3, thereby further enhancing the sealing of the gear box as a whole. At the same time, the rubber material wrapped on the outer surface of the abutment block has good elasticity and sealing properties, which can further improve the sealing effect.
[0029] Furthermore, an abutment groove 413 is formed on the outer surface of the bottom end of the first connecting member 3 , and the abutment groove 413 serves as a limiting connection.
[0030] Furthermore, a through slot is provided at the top of the top cover 2, and a heat sink 911 is fixedly installed in the through slot. The heat sink 911 helps to discharge the heat inside the gear box in time, reduce the working temperature, and improve the working efficiency and stability of the gear box.
[0031] Furthermore, a slide plate 9 is movably mounted on the inner wall of the through groove of the top cover 2, and a handle 912 is fixedly mounted on the outer surface of the slide plate 9. The slide plate 9 can be closed to cover the heat sink 911, thereby protecting the heat sink 911 and other components inside the gear box from the external environment. The slide plate 9 can be conveniently closed by pulling the handle 912, thereby adjusting the working state of the gear box to adapt to different environmental requirements.
[0032] Furthermore, the outer surface of the connecting ring 6 is serrated, and the serrated outer surface increases the friction of human skin, thereby facilitating the rotation and removal of the connecting ring 6.
[0033] Working principle: First, the gearbox body 1 and the top cover 2 are the main structural parts responsible for accommodating gears and other key components. The fixing part 111 is fixedly connected to the input end through the thread opened on its outer surface to ensure that the connecting ring 6 can be stably installed on the gearbox. The connecting ring 6 serves as the support and fixing structure of the magnetic oil seal 7. The multiple groups of grooves 811 opened on its outer surface are used to cooperate with the telescopic pin 8 to achieve the fixation and sealing of the magnetic oil seal. The magnetic oil seal 7 uses the magnetic field and lubricating oil lubrication to further enhance the sealing effect. As the gearbox continues to run, a small amount of lubricating oil or impurities may try to enter the gearbox through the input end. At this time, the telescopic pin 8, under the constraint of the groove 811, cooperates closely with the magnetic oil seal 7 to jointly block the entry of lubricating oil or impurities.
[0034] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.
Claims
1. A gearbox with good sealing performance, comprising a gearbox body (1), a top cover (2) being installed at the top of the gearbox body (1), characterized in that: The gearbox body (1) and one side of the top cover (2) are both provided with an input end, and a fixing member (111) is installed on the outer surface of the input end, the fixing member (111) is provided with a thread on the outer surface, and a connecting ring (6) is movably installed on the outer surface of the fixing member (111), the connecting ring (6) is provided with a plurality of groups of grooves (811) on the outer surface, and a magnetic oil seal (7) is movably installed on the inner wall of the connecting ring (6), the magnetic oil seal (7) is provided with a plurality of groups of grooves on the outer surface, and a spring is installed in the groove, and one end of the spring is connected to a telescopic pin (8).
2. A gearbox with good sealing performance according to claim 1, characterized in that: A first connecting member (3) and a second connecting member (4) are fixedly mounted on the outer sides of the gearbox body (1) and the top cover (2), respectively; a plurality of sets of screw rods (5) are arranged on the outer surface of the first connecting member (3), and a plurality of sets of screw holes (412) are arranged on the outer surface of the second connecting member (4).
3. A gearbox with good sealing performance according to claim 2, characterized in that: An abutment block (411) is fixedly mounted on the outer surface of the top end of the second connecting member (4), and the outer surface of the abutment block (411) is wrapped with rubber.
4. A gearbox with good sealing performance according to claim 2, characterized in that: An abutment groove (413) is provided on the outer surface of the bottom end of the first connecting member (3).
5. A gearbox with good sealing performance according to claim 1, characterized in that: A through slot is provided at the top end of the top cover (2), and a heat sink (911) is fixedly installed in the through slot.
6. A gearbox with good sealing performance according to claim 5, characterized in that: A slide plate (9) is movably mounted on the inner wall of the through slot of the top cover (2), and a handle (912) is fixedly mounted on the outer surface of the slide plate (9).
7. A gearbox with good sealing performance according to claim 1, characterized in that: The outer surface of the connecting ring (6) is in a sawtooth shape.