Transmission shaft with high sealing performance, low temperature resistance and large torque
By installing heating tubes and sealing rings inside the drive shaft, and coordinating the slide grooves and slide bars, combined with nickel-chromium-molybdenum steel material and temperature sensors, the problem of performance degradation of traditional drive shafts in low temperature environments is solved, and high sealing and high torque transmission performance are achieved, making it suitable for heavy vehicles, ships and other equipment.
Patent Information
- Application Number
- CN202422714534.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-07
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-11-07
AI Technical Summary
Traditional drive shafts are prone to performance degradation in low-temperature environments due to brittle materials and lubricant failure, and their sealing performance is difficult to meet stringent requirements, limiting their application in specific fields.
A transmission shaft with high sealing performance, low temperature resistance and high torque is designed. By arranging heating tubes, sealing rings, and the cooperation of slide grooves and slide strips inside the shaft body, combined with nickel-chromium-molybdenum steel material, the shaft body is heated and the lubricant is evenly distributed. The temperature is monitored and controlled in real time through temperature sensors, and the internal structure is optimized to improve sealing performance and stability.
It maintains stable transmission performance in low temperature environments, improves sealing and durability, and can withstand large torque. It is suitable for mechanical equipment such as heavy vehicles and ships, extending service life and reducing friction and wear.
Smart Images
Figure CN223330946U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of industrial automation technology, and in particular to a transmission shaft with high sealing performance, low temperature resistance and high torque. Background Art
[0002] Although traditional drive shaft designs can meet the needs of general working conditions, they often exhibit poor performance in extreme environments, especially under low temperature conditions. Traditional drive shafts are prone to performance degradation or even damage due to problems such as material brittleness and lubricant failure. In addition, the sealing performance of traditional drive shafts is difficult to meet stringent dust and water resistance requirements, which limits their application scope in certain specific fields.
[0003] At present, in order to improve the performance of the drive shaft in a low-temperature environment, a common technical means is to use a shaft made of low-temperature resistant materials, which makes the production cost of the shaft higher. However, at too low temperatures, there is still the problem of increased lubricant viscosity or even failure. Utility Model Content
[0004] In response to the deficiencies of the prior art, the present application provides a transmission shaft with high sealing performance, low temperature resistance and high torque, which has the advantages of preventing lubricant failure in low temperature environments, thereby solving the problem.
[0005] To achieve the above-mentioned objectives, the present application provides the following technical solutions: a transmission shaft with high sealing performance, low temperature resistance and high torque, comprising a shaft body and a sleeve, wherein the shaft body is provided with a plurality of mounting holes arranged in a circular array, and a heating pipe is fixedly connected to the interior of the plurality of mounting holes, a lubrication cavity is provided inside the shaft body, and a plurality of oil storage tanks are provided outside the lubrication cavity, a sealing ring is fixedly connected to one side of the outer wall of the shaft body, a temperature sensor is fixedly connected to one side of the outer wall of the sealing ring, sliding grooves are provided at both ends of the outer wall of the sealing ring, sliding bars are fixedly connected at both ends of the inner wall of the sleeve, and an empty groove is provided inside the sleeve.
[0006] Through the above scheme, the heating tube arranged inside the shaft body can heat the drive shaft in a low temperature environment, preventing material brittleness or performance degradation caused by too low temperature, thereby ensuring that the drive shaft can still maintain stable transmission performance in a low temperature environment. Through the cooperation of the sealing ring, the slide groove and the slide bar, a close connection between the sleeve and the shaft body is achieved, which improves the sealing performance and durability of the drive shaft. The sturdy design of the shaft body and the sleeve, and the optimization of the internal structure enable the drive shaft to withstand a larger torque and is suitable for mechanical equipment that needs to transmit large torque, such as heavy vehicles, ships, etc., and the temperature sensor can monitor the temperature inside the shaft body in real time, and start or shut down the heating tube as needed, thereby realizing precise control of the temperature of the drive shaft and extending its service life. The design of the lubrication cavity and the oil storage tank enables the lubricant to be evenly distributed inside the shaft body, reducing friction and wear, and improving transmission efficiency and service life.
[0007] Furthermore, both ends of the shaft body are provided with mounting grooves, and bearings are fixedly connected inside the two mounting grooves.
[0008] Through the above scheme, the bearings arranged at both ends of the shaft can more effectively support the rotational movement of the shaft, reduce friction and wear, improve the stability and durability of the drive shaft, and make the drive shaft more stable when subjected to large torque, reducing shaking caused by vibration or instability.
[0009] Furthermore, a baffle is fixedly connected to one side of each of the two mounting grooves.
[0010] Through the above scheme, the baffle is set to prevent the bearing from falling off or loosening in the installation groove, thereby ensuring the stability and safety of the drive shaft. When rotating at high speed or bearing large torque, the baffle can prevent the bearing from shifting due to centrifugal force or vibration, ensuring the continuous and stable operation of the drive shaft.
[0011] Furthermore, two sealing rings distributed in a mirror image are fixedly connected to the inner walls of the two bearings.
[0012] Through the above solution, the sealing ring on the inner wall of the bearing prevents the lubricant from leaking and external impurities from entering the shaft body.
[0013] Furthermore, the sleeve is rotatably arranged on the outer wall of the shaft, and the two slide bars are both slidably arranged inside the slide groove.
[0014] Through the above solution, the sleeve cooperates with the sliding bar and the sliding groove to achieve relative rotation between the two, thereby limiting the radial movement of the sleeve and providing axial guidance, making the sleeve more stable during rotation and reducing vibration and noise.
[0015] Furthermore, the temperature sensor passes through the sealing ring and extends into the interior of the shaft body.
[0016] Through the above solution, the temperature sensor directly passes through the sealing ring and penetrates deep into the shaft body, which can monitor the temperature conditions inside the shaft body in real time and accurately, so that the drive shaft operates within the optimal operating temperature range, preventing performance degradation or damage caused by excessively high or low temperatures.
[0017] Furthermore, the temperature sensor is designed to slide inside the empty slot.
[0018] Through the above solution, the empty slot is used to provide a rotation space for the temperature sensor when the shaft body rotates.
[0019] Furthermore, the shaft is made of nickel-chromium-molybdenum steel.
[0020] Through the above solution, the shaft is made of nickel-chromium-molybdenum steel. Nickel-chromium-molybdenum steel has good low-temperature toughness and strength, and can maintain stable mechanical properties at extremely low temperatures. Therefore, the drive shaft can work normally in various low-temperature environments and is not prone to brittle fracture or performance degradation.
[0021] Compared with the existing technology, the technical solution of this application has the following beneficial effects:
[0022] This is a high-sealing, low-temperature-resistant, high-torque transmission shaft. The heating tube arranged inside the shaft body can heat the transmission shaft in a low-temperature environment to prevent material brittleness or performance degradation due to excessively low temperature, thereby ensuring that the transmission shaft can still maintain stable transmission performance in a low-temperature environment. The cooperation of the sealing ring, the slide groove and the slide bar achieves a tight connection between the sleeve and the shaft body, thereby improving the sealing performance and durability of the transmission shaft. The solid design of the shaft body and the sleeve, as well as the optimization of the internal structure, enable the transmission shaft to withstand a larger torque and is suitable for mechanical equipment that needs to transmit a large torque, such as heavy vehicles, ships, etc. The temperature sensor can monitor the temperature inside the shaft body in real time and start or shut down the heating tube as needed, thereby achieving precise control of the temperature of the transmission shaft and extending its service life. The design of the lubrication cavity and the oil storage tank enables the lubricant to be evenly distributed inside the shaft body, thereby reducing friction and wear, and improving transmission efficiency and service life. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 This is a schematic diagram of the overall structure of this application;
[0024] Figure 2 A schematic diagram of the internal structure of this application;
[0025] Figure 3 This is a schematic diagram of the sleeve structure of the present application;
[0026] Figure 4 This is a schematic diagram of the sleeve installation structure of the structure of this application.
[0027] In the picture:
[0028] 1. Shaft; 2. Mounting hole; 3. Heating tube; 4. Lubrication chamber; 5. Oil storage tank; 6. Sealing ring; 7. Temperature sensor; 8. Slide groove; 9. Sleeve; 10. Slide bar; 11. Empty groove; 12. Mounting groove; 13. Bearing; 14. Baffle; 15. Sealing ring. DETAILED DESCRIPTION
[0029] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.
[0030] See also Figure 1 、 Figure 2 and Figure 3 In this embodiment, a transmission shaft with high sealing performance, low temperature resistance and high torque includes a shaft body 1 and a sleeve 9. A plurality of mounting holes 2 arranged in a ring array are opened inside the shaft body 1. A heating tube 3 is fixedly connected to the inside of the plurality of mounting holes 2. The heating tube 3 arranged inside the shaft body 1 can heat the transmission shaft in a low temperature environment to prevent the material from becoming brittle or the performance from being degraded due to the low temperature, thereby ensuring that the transmission shaft can still maintain stable transmission performance in a low temperature environment. A lubrication cavity 4 is opened inside the shaft body 1, and a plurality of oil storage tanks 5 are opened outside the lubrication cavity 4. The outer wall of the shaft body 1 A sealing ring 6 is fixedly connected to one side, and a temperature sensor 7 is fixedly connected to one side of the outer wall of the sealing ring 6. The temperature sensor 7 can monitor the temperature inside the shaft body 1 in real time and start or shut down the heating tube 3 as needed, thereby achieving precise control of the temperature of the transmission shaft and extending its service life. Slide grooves 8 are provided at both ends of the outer wall of the sealing ring 6, and slide bars 10 are fixedly connected at both ends of the inner wall of the sleeve 9. An empty groove 11 is provided inside the sleeve 9. The design of the lubrication cavity 4 and the oil storage tank 5 enables the lubricant to be evenly distributed inside the shaft body 1, reducing friction and wear, and improving transmission efficiency and service life.
[0031] See also Figure 2 and Figure 4, both ends of the shaft body 1 are provided with mounting grooves 12, and bearings 13 are fixedly connected inside the two mounting grooves 12. The bearings 13 arranged at both ends of the shaft body 1 can more effectively support the rotational movement of the shaft body 1, reduce friction and wear, improve the stability and durability of the drive shaft, and make the drive shaft more stable when subjected to large torque, reducing the shaking caused by vibration or instability. A baffle 14 is fixedly connected to one side of the two mounting grooves 12. The baffle 14 is set to prevent the bearings 13 from falling off or loosening in the mounting groove 12, thereby ensuring the stability and safety of the drive shaft. When rotating at high speed or subjected to large torque, the baffle 14 can prevent the bearings 13 from shifting due to centrifugal force or vibration, thereby ensuring the continuous and stable operation of the drive shaft. Two mirror-distributed sealing rings 15 are fixedly connected to the inner walls of the two bearings 13. The sealing ring 15 on the inner wall of the bearing 13 prevents lubricant from leaking and external impurities from entering the interior of the shaft body 1.
[0032] See also Figure 1 、 Figure 3 and Figure 4 The sleeve 9 is rotatably arranged on the outer wall of the shaft body 1, and the two slide bars 10 are slidably arranged inside the slide groove 8. The sleeve 9 cooperates with the slide groove 8 through the slide bar 10 to achieve relative rotation between the two, thereby limiting the radial movement of the sleeve 9 and providing axial guidance, so that the sleeve 9 is more stable during rotation, reducing vibration and noise, and the temperature sensor 7 passes through the sealing ring 6 and extends into the interior of the shaft body 1. The temperature sensor 7 directly passes through the sealing ring 6 and penetrates deep into the interior of the shaft body 1, and can monitor the temperature inside the shaft body 1 in real time and accurately, so that the drive shaft operates within the optimal operating temperature range to prevent performance degradation or damage caused by excessively high or low temperature. The temperature sensor 7 is designed to slide inside the empty groove 11. The empty groove 11 is used to provide rotation space for the temperature sensor 7 when the shaft body 1 rotates. The shaft body 1 is made of nickel-chromium-molybdenum steel. The shaft body 1 is made of nickel-chromium-molybdenum steel. Nickel-chromium-molybdenum steel has good low-temperature toughness and strength, and can maintain stable mechanical properties at extremely low temperatures. Therefore, the drive shaft can work normally in various low-temperature environments and is not prone to brittle fracture or performance degradation.
[0033] In this embodiment, the transmission shaft with high sealing performance, low temperature resistance and high torque can heat the transmission shaft in a low temperature environment through the heating tube 3 arranged inside the shaft body 1, preventing material embrittlement or performance degradation caused by excessively low temperature, thereby ensuring that the transmission shaft can still maintain stable transmission performance in a low temperature environment. Through the cooperation of the sealing ring 6, the slide groove 8 and the slide bar 10, a tight connection between the sleeve 9 and the shaft body 1 is achieved, which improves the sealing performance and durability of the transmission shaft. The sturdy design of the shaft body 1 and the sleeve 9, as well as the optimization of the internal structure, enable the transmission shaft to withstand a larger torque and is suitable for mechanical equipment that needs to transmit large torque, such as heavy vehicles, ships, etc., and the temperature sensor 7 can monitor the temperature inside the shaft body 1 in real time, and start or shut down the heating tube 3 as needed, thereby realizing precise control of the temperature of the transmission shaft and extending its service life. The design of the lubrication cavity 4 and the oil storage tank 5 enables the lubricant to be evenly distributed inside the shaft body 1, reducing friction and wear, and improving transmission efficiency and service life.
[0034] It should be noted that the design of the lubrication cavity 4 and the oil storage tank 5 enables the lubricant to be evenly distributed inside the shaft body 1, effectively reducing friction and wear, and improving transmission efficiency and service life. The empty groove 11 provides space for the temperature sensor 7 to rotate, allowing it to move freely with the rotation of the shaft body 1 while maintaining real-time monitoring of the internal temperature of the shaft body 1.
[0035] The working principle of the above embodiment is:
[0036] First, the transmission shaft is in an unstarted state, and the heating tube 3 installed inside the shaft body 1 is not powered. Since the shaft body 1 is made of nickel-chromium-molybdenum steel, it has good low-temperature toughness and strength and can adapt to various low-temperature environments. The temperature sensor 7 passes through the sealing ring 6 and extends to the inside of the shaft body 1 to monitor the temperature inside the shaft body 1 in real time. According to the signal of the temperature sensor 7, when the ambient temperature is too low, the heating tube 3 is started to heat the shaft body 1 to keep the shaft body 1 and the lubricant within a suitable working temperature range. During the rotation of the shaft body 1, the lubricant is guided by the lubrication cavity 4 and the oil storage tank 5 to continuously lubricate the shaft body 1, reducing friction and wear. The sealing ring 15 on the inner wall of the bearing 13 prevents lubricant leakage and external impurities from entering the interior of the shaft body 1, further protecting the shaft body 1. The sleeve 9 passes through The cooperation between the slide bar 10 and the slide groove 8 realizes relative rotation with the shaft body 1. The empty groove 11 provides a rotation space for the temperature sensor 7, so that it can move freely with the rotation of the shaft body 1, while maintaining real-time monitoring of the internal temperature of the shaft body 1. The bearings 13 set at both ends of the shaft body 1 can more effectively support the rotational movement of the shaft body 1, reduce friction and wear, and the cooperation between the bearings 13 and the baffle 14 prevents the bearing 13 from falling off or loosening in the installation groove 12, ensuring the stability and safety of the drive shaft. When subjected to large torque, the drive shaft can remain stable, reducing shaking caused by vibration or instability. During the operation of the drive shaft, the temperature sensor 7 continuously monitors the temperature inside the shaft body 1, and starts or shuts down the heating tube 3 as needed to prevent the lubricant from reducing its lubrication performance due to low temperature.
[0037] 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 the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.
[0038] Although the embodiments of the present application 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 application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A transmission shaft with high sealing performance, low temperature resistance and high torque, comprising a shaft body (1) and a sleeve (9), characterized in that: The shaft body (1) is provided with a plurality of mounting holes (2) arranged in a circular array, and a heating tube (3) is fixedly connected to the interior of the plurality of mounting holes (2). The shaft body (1) is provided with a lubrication cavity (4), and a plurality of oil storage tanks (5) are provided outside the lubrication cavity (4). A sealing ring (6) is fixedly connected to one side of the outer wall of the shaft body (1), and a temperature sensor (7) is fixedly connected to one side of the outer wall of the sealing ring (6). Slide grooves (8) are provided at both ends of the outer wall of the sealing ring (6), and slide bars (10) are fixedly connected to both ends of the inner wall of the sleeve (9). An empty groove (11) is provided inside the sleeve (9).
2. The transmission shaft with high sealing performance, low temperature resistance and high torque according to claim 1, characterized in that: Both ends of the shaft body (1) are provided with mounting grooves (12), and bearings (13) are fixedly connected inside the two mounting grooves (12).
3. The transmission shaft with high sealing performance, low temperature resistance and high torque according to claim 2, characterized in that: A baffle (14) is fixedly connected to one side of each of the two mounting grooves (12).
4. The transmission shaft with high sealing performance, low temperature resistance and high torque according to claim 2, characterized in that: Two mirror-distributed sealing rings (15) are fixedly connected to the inner walls of the two bearings (13).
5. The transmission shaft with high sealing performance, low temperature resistance and high torque according to claim 1, characterized in that: The sleeve (9) is rotatably arranged on the outer wall of the shaft body (1), and the two slide bars (10) are both slidably arranged inside the slide groove (8).
6. The transmission shaft with high sealing performance, low temperature resistance and high torque according to claim 1, characterized in that: The temperature sensor (7) passes through the sealing ring (6) and extends into the interior of the shaft body (1).
7. The transmission shaft with high sealing performance, low temperature resistance and high torque according to claim 1, characterized in that: The temperature sensor (7) is designed to slide inside the empty slot (11).
8. The transmission shaft with high sealing performance, low temperature resistance and high torque according to claim 1, characterized in that: The shaft (1) is made of nickel-chromium-molybdenum steel.