Shaft tube spline type transmission shaft
By using sealing and fixing mechanisms in the shaft tube spline transmission, the problems of lubricating oil leakage and wear are solved, the stability and service life of the equipment are improved, and the maintenance process is simplified.
Patent Information
- Application Number
- CN202421121276.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-22
AI Technical Summary
Existing shaft and tube spline transmission devices are prone to gaps during long-term use, resulting in lubricating oil leakage and component wear, reducing the service life of the equipment.
A sealing mechanism and a fixing mechanism are adopted, including an inner shaft tube, an outer shaft tube, an oil nozzle, a first fixing ring, a second fixing ring, a sealing ring, a snap ring, a fixing shell, a fixing tube, a spring and a corrugated tube, through which the plug is The limit connection between the ring and the clamp and the fixed connection between the corrugated pipe and the outer shaft pipe form a firm installation structure to prevent loosening and leakage.
Improves installation safety and reliability, prevents lubricant leakage, extends the service life of the equipment, and simplifies maintenance and assembly processes.
Smart Images
Figure CN222185530U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transmission shafts, in particular to a shaft tube spline type transmission shaft. Background Art
[0002] The spline drive shaft is a common mechanical transmission device, usually used to transmit rotational motion to another shaft. This transmission device adopts a spline connection method, and the transmission between the shafts is realized by cutting corresponding grooves and keys on the shaft.
[0003] However, in the prior art, some existing transmission shafts often include two shaft tubes, and the inner and outer shaft tubes are matched through spline sleeves, that is, the outer spline is welded on the outer wall of one shaft tube, and the inner spline is welded on the inner wall of the other shaft tube. When in use, lubricating oil needs to be added between the two shaft tubes. However, after long-term use, gaps are likely to appear at the connection between the inner shaft tube and the outer shaft tube, resulting in lubricating oil leakage. After long-term use, the leakage of lubricating oil may cause wear between components, thereby reducing the service life of the equipment. Utility Model Content
[0004] The utility model aims to solve the shortcomings in the prior art and provides a shaft tube spline type transmission shaft.
[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a shaft tube spline transmission shaft, comprising: a sealing mechanism, the sealing mechanism comprising an inner shaft tube, an outer shaft tube is arranged on the surface of one end of the inner shaft tube, a fixing mechanism is arranged on the surface of the outer shaft tube, an oil nozzle is arranged on the top of the outer shaft tube, a first fixing ring and a second fixing ring are arranged on the surface of the connection between the inner shaft tube and the outer shaft tube, and the inner walls of the grooves opened by the first fixing ring and the second fixing ring are both provided with sealing rings.
[0006] As a preferred embodiment, retaining rings are provided on both sides of the bottom of the first fixing ring, fixing shells are provided on both sides of the top of the second fixing ring, fixing tubes are provided on one side of the inner walls of the two fixing shells, springs are provided on one side of the inner walls of the two fixing tubes, a clamping block is provided at one end of the two springs, and a pressing piece is provided on the other side of the two clamping blocks.
[0007] As a preferred embodiment, the fixing mechanism includes a bellows, and clamps are provided at both ends of the bellows surface. The inner walls of the two clamps are respectively connected to the two end surfaces of the bellows, and the bellows is fixedly connected to the surface of the outer shaft tube through the clamps.
[0008] As a preferred implementation, the surface of the extension portion at one end of the inner shaft tube is connected to the inner wall of one end of the outer shaft tube, and the inner wall of the groove opened on one side of the top of the outer shaft tube is fixedly connected to the surface of the oil nozzle.
[0009] As a preferred embodiment, the surface of the connection between the inner shaft tube and the outer shaft tube contacts the inner walls of the first fixing ring and the second fixing ring, and the two sealing ring surfaces are respectively fixedly connected to the inner walls of the grooves formed by the first fixing ring and the second fixing ring.
[0010] As a preferred implementation, the tops of the two clamping rings are respectively fixedly connected to the two sides of the bottom of the first fixing ring, and the clamping grooves provided in the two clamping rings are respectively fixedly engaged with the corresponding clamping blocks.
[0011] As a preferred implementation, the two surfaces of the fixing shells are respectively fixedly connected to the two sides of the top of the second fixing ring, and one end of the two fixing tubes is respectively fixedly connected to one side of the corresponding inner wall of the fixing shell.
[0012] As a preferred embodiment, one end of the two springs are respectively fixedly connected to one side of the corresponding inner wall of the fixed tube, the other ends of the two springs are respectively connected to the fixed block on one side of the corresponding clamping block, and the other sides of the two clamping blocks are respectively fixedly connected to one side of the corresponding pressing member.
[0013] Compared with the prior art, the advantages and positive effects of the utility model are:
[0014] The utility model utilizes the limiting connection between the clamping ring and the clamping block through the installed sealing mechanism, which can not only form a firm installation structure and improve the safety and reliability of use after installation, but also the components are limited after being clamped, which can effectively prevent loosening or falling off during use, thereby ensuring the stability after installation. At the same time, the entire installation process is completed through pressing and alignment operations, which is relatively simple to operate, does not require complicated tools or steps, and improves the installation efficiency. Moreover, by reinforcing the connection parts and preventing leakage, its service life can also be increased, and wear between components caused by leakage of lubricating oil can be avoided.
[0015] The fixed connection between the surface of the bellows and the surface of the outer shaft tube through the installed fixing mechanism can not only ensure that the connection is firm and stable, not easy to loosen or fall off, and avoid safety hazards during the operation of the equipment, but also through the fixed connection between the clamp and the outer shaft tube, the bellows can be easily disassembled and assembled when maintenance or replacement is required, which simplifies the difficulty and time-consuming maintenance work. At the same time, the fixed connection between the clamp and the outer shaft tube is also suitable for bellows and outer shaft tubes of various specifications and sizes, and has good versatility and adaptability. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The utility model provides a structural schematic diagram of a shaft tube spline type transmission shaft.
[0017] Figure 2The utility model provides a structural schematic diagram of the sealing mechanism and the fixing mechanism of the shaft tube spline type transmission shaft.
[0018] Figure 3 The utility model provides a structural schematic diagram of a side view of a sealing mechanism of a shaft tube spline type transmission shaft.
[0019] Figure 4 The utility model provides a structural schematic diagram of a sealing mechanism of a shaft tube spline transmission shaft provided by the utility model, which is a partial dissected side view.
[0020] Legend:
[0021] 1. Sealing mechanism; 11. Inner shaft tube; 12. Outer shaft tube; 13. Oil nozzle; 14. First fixing ring; 15. Snap ring; 16. Second fixing ring; 17. Sealing ring; 18. Fixing shell; 19. Fixing tube; 110. Spring; 111. Block; 112. Pressing piece
[0022] 2. Fixing mechanism; 21. Bellows; 22. Clamp. DETAILED DESCRIPTION
[0023] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in combination with the accompanying drawings by way of examples.
[0024] It should be noted that many specific details are set forth in the following description to facilitate a full understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited to the specific embodiments disclosed below.
[0025] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0026] In the present utility model, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral one; it can be directly connected, or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through an intermediate structure, but are connected to form a whole only through a connecting structure. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.
[0027] In the present utility model, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.
[0028] Example 1
[0029] like Figure 1-Figure 4 As shown, the utility model provides a technical solution: a shaft tube spline transmission shaft, comprising: a sealing mechanism 1, the sealing mechanism 1 comprises an inner shaft tube 11, an outer shaft tube 12 is arranged on the surface of one end of the inner shaft tube 11, a fixing mechanism 2 is arranged on the surface of the outer shaft tube 12, an oil nozzle 13 is arranged on the top of the outer shaft tube 12, a first fixing ring 14 and a second fixing ring 16 are arranged on the surface of the connection between the inner shaft tube 11 and the outer shaft tube 12, sealing rings 17 are arranged on the inner walls of the card grooves opened by the first fixing ring 14 and the second fixing ring 16, retaining rings 15 are arranged on both sides of the bottom of the first fixing ring 14, and fixing shells 18 are arranged on both sides of the top of the second fixing ring 16, fixing tubes 19 are arranged on one side of the inner walls of the two fixing shells 18, springs 110 are arranged on one side of the inner walls of the two fixing tubes 19, one end of the two springs 110 is provided with a card block 111, and the other side of the two card blocks 111 is provided with a pressing piece 112.
[0030] In this embodiment, the surface of the extension portion at one end of the inner shaft tube 11 is connected to the inner wall of one end of the outer shaft tube 12, the inner wall of the groove opened on one side of the top of the outer shaft tube 12 is fixedly connected to the surface of the oil nozzle 13, the surface of the connection between the inner shaft tube 11 and the outer shaft tube 12 is in contact with the inner walls of the first fixing ring 14 and the second fixing ring 16, and the surfaces of the two sealing rings 17 are respectively fixedly connected to the inner walls of the grooves opened by the first fixing ring 14 and the second fixing ring 16; the limiting connection between the clamping ring 15 and the clamping block 111 can not only form a firm installation structure, but also improve the safety and reliability of use after installation. After the components are clamped, the limiting is formed, and loosening or falling off during use can be effectively prevented, thereby ensuring the stability after installation. At the same time, the entire installation process is completed by pressing and alignment operations, which is relatively simple to operate, does not require complicated tools or steps, and improves the installation efficiency. In addition, by reinforcing and preventing leakage at the connection parts, its service life can also be increased to avoid wear between components caused by leakage of lubricating oil.
[0031] The surfaces of the two fixed shells 18 are fixedly connected to the two sides of the top of the second fixed ring 16 respectively, one end of the two fixed tubes 19 is fixedly connected to the corresponding one side of the inner wall of the fixed shell 18, one end of the two springs 110 is fixedly connected to the corresponding one side of the inner wall of the fixed tube 19, the other ends of the two springs 110 are respectively connected to the fixed blocks on one side of the corresponding clamping block 111, and the other sides of the two clamping blocks 111 are respectively fixedly connected to the corresponding one side of the pressing member 112; the operation of pressing the pressing member 112 is relatively simple, and does not require complicated tools and steps. It can not only quickly separate the connection between the outer shaft tube 12 and the inner shaft tube 11, but also improve the efficiency of the operation. In the process of pressing the pressing member 112, the limiting connection formed between the clamping block 111 and the clamping ring 15 is very tight, and it can also ensure the precise docking between the outer shaft tube 12 and the inner shaft tube 11, which improves the stability and reliability of the connection. At the same time, by separating the connection between the outer shaft tube 12 and the inner shaft tube 11 in this way, it is also convenient to carry out inspection or maintenance work, and maintenance personnel can more easily enter the connection part for operation.
[0032] Example 2
[0033] like Figure 1-Figure 2 As shown, the fixing mechanism 2 includes a bellows 21 , with clamps 22 provided at both ends of the surface of the bellows 21 , the inner walls of the two clamps 22 are respectively connected to the surfaces at both ends of the bellows 21 , and the bellows 21 is fixedly connected to the surface of the outer shaft tube 12 through the clamps 22 .
[0034] In this embodiment, the surface of the bellows 21 is fixedly connected to the surface of the outer shaft tube 12 through the clamp 22, which not only ensures that the connection is firm and stable and not easy to loosen or fall off, but also avoids safety hazards during the operation of the equipment. Through the fixed connection between the clamp 22 and the outer shaft tube 12, the bellows 21 can be easily disassembled and assembled when maintenance or replacement is required, which simplifies the difficulty and time consumption of maintenance work. At the same time, the fixed connection between the clamp 22 and the outer shaft tube 12 is also suitable for bellows 21 and outer shaft tubes 12 of various specifications and sizes, and has good versatility and adaptability.
[0035] Working principle:
[0036] like Figure 1-Figure 4 As shown, when the staff needs to dismantle and inspect the connection between the outer shaft tube 12 and the inner shaft tube 11, they can first press the two pressing pieces 112 at the same time. When the two pressing pieces 112 are pressed, they will synchronously push the corresponding clamping block 111 to squeeze the spring 110. When the spring 110 is pressurized, it will deform and shrink. During the deformation and shrinkage of the spring 110, the clamping block 111 will also release the limit from the clamping ring 15. After the limit is released, the staff can separate the first fixing ring 14 from the second fixing ring 16 to inspect the connection between the outer shaft tube 12 and the inner shaft tube 11. When the staff needs to install the device after inspection or maintenance, they can first align the first fixing ring 14 with the second fixing ring 16, and then align the clamping ring 15 connected to the two sides of the bottom of the first fixing ring 14 with the corresponding clamping groove opened on the top of the fixing shell 18, and finally press the two clamping rings 15 to engage with the corresponding clamping rings 15 to form a limit. When the clamping ring 15 and the clamping block 111 form a limit, the first fixing ring 14 and the second fixing ring 16 will also be limited. The described process completes the installation process.
[0037] Those skilled in the art should understand that the discussion of any of the above embodiments is merely illustrative and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples. Under the concept of the present invention, the technical features in the above embodiments or different embodiments may be combined, the steps may be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in detail for the sake of simplicity.
[0038] The utility model is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model should be included in the scope of protection of the utility model.
Claims
1. A shaft tube spline transmission shaft, characterized in that: include: A sealing mechanism (1), the sealing mechanism (1) comprising an inner shaft tube (11), an outer shaft tube (12) being arranged on one end surface of the inner shaft tube (11), a fixing mechanism (2) being arranged on the surface of the outer shaft tube (12), an oil nozzle (13) being arranged on the top of the outer shaft tube (12), a first fixing ring (14) and a second fixing ring (16) being arranged on the surface of the connection between the inner shaft tube (11) and the outer shaft tube (12), and sealing rings (17) being arranged on the inner walls of the slots formed by the first fixing ring (14) and the second fixing ring (16).
2. The shaft tube spline transmission shaft according to claim 1, characterized in that: Both sides of the bottom of the first fixing ring (14) are provided with snap rings (15), both sides of the top of the second fixing ring (16) are provided with fixing shells (18), one side of the inner wall of the two fixing shells (18) is provided with a fixing tube (19), one side of the inner wall of the two fixing tubes (19) is provided with a spring (110), one end of the two springs (110) is provided with a clamping block (111), and the other side of the two clamping blocks (111) is provided with a pressing piece (112).
3. The shaft tube spline transmission shaft according to claim 2, characterized in that: The fixing mechanism (2) comprises a bellows (21), and clamps (22) are provided at both ends of the surface of the bellows (21). The inner walls of the two clamps (22) are respectively connected to the surfaces at both ends of the bellows (21), and the bellows (21) is fixedly connected to the surface of the outer shaft tube (12) through the clamps (22).
4. The shaft tube spline transmission shaft according to claim 1, characterized in that: The surface of the extension portion at one end of the inner shaft tube (11) is connected to the inner wall at one end of the outer shaft tube (12), and the inner wall of the slot opened on one side of the top of the outer shaft tube (12) is fixedly connected to the surface of the oil nozzle (13).
5. The shaft tube spline transmission shaft according to claim 1, characterized in that: The surface of the connection between the inner shaft tube (11) and the outer shaft tube (12) contacts the inner walls of the first fixing ring (14) and the second fixing ring (16), and the surfaces of the two sealing rings (17) are respectively fixedly connected to the inner walls of the slots formed in the first fixing ring (14) and the second fixing ring (16).
6. The shaft tube spline transmission shaft according to claim 2, characterized in that: The tops of the two clamping rings (15) are respectively fixedly connected to the two sides of the bottom of the first fixing ring (14), and the clamping grooves provided in the two clamping rings (15) are respectively fixedly clamped to the corresponding clamping blocks (111).
7. The shaft tube spline transmission shaft according to claim 2, characterized in that: The surfaces of the two fixed shells (18) are respectively fixedly connected to the two sides of the top of the second fixed ring (16), and one end of the two fixed tubes (19) is respectively fixedly connected to one side of the inner wall of the corresponding fixed shell (18).
8. The shaft tube spline transmission shaft according to claim 2, characterized in that: One end of the two springs (110) is respectively fixedly connected to one side of the inner wall of the corresponding fixed tube (19), the other end of the two springs (110) is respectively connected to a fixed block on one side of the corresponding clamping block (111), and the other side of the two clamping blocks (111) is respectively fixedly connected to one side of the corresponding pressing member (112).