Protection device for main shaft loading system
By designing bearing housings and center-of-gravity adjustment components in the spindle loading system, the vibration problem caused by spindle center-of-gravity offset was solved, achieving stable support and accurate testing of the spindle loading system, and reducing equipment failure risk and maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING CAERI AUTOMOBILE TEST EQUIP DEV
- Filing Date
- 2025-03-14
- Publication Date
- 2026-04-17
AI Technical Summary
In wind turbine drivetrain testing, vibration and data fluctuations are caused by the shift of the center of gravity of the main shaft under different loads, which affects the test accuracy and may lead to equipment failure, and the test cost is high.
Design a protective device for a spindle loading system, including a bearing housing, a support assembly, and a center of gravity adjustment assembly. By cooperating with the guide assembly and the adjusting block, the center of gravity position of the bearing housing is adjusted to ensure the stability of the spindle in the axial direction and the reliability of the support.
It reduces the risk of fatigue damage to spindle and bearing components, extends service life, reduces maintenance costs and downtime, and improves the stability and accuracy of testing.
Smart Images
Figure CN224136894U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wind turbine transmission chain testing technology, and in particular to a protection device for a main shaft loading system. Background Technology
[0002] In the wind turbine drivetrain testing system, since the wind turbine test needs to simulate the angle requirements of the wind turbine in the actual environment, the wind turbine drivetrain testing platform needs to meet the test wind turbine elevation angle conditions of (6-10)°. The main shaft loading system, which is the most important part of the wind turbine drivetrain test, also needs to change with the angle of the testing platform.
[0003] During actual wind turbine operation, the torque, axial force, and other loads on the drivetrain are extremely unevenly distributed along the main shaft axis at different wind speeds. When simulating these conditions, this uneven load distribution causes the center of gravity of the entire main shaft loading system to shift along the shaft axis. Once the center of gravity deviates from its position, the testing equipment will experience more severe vibrations, which will not only interfere with data acquisition, leading to large data fluctuations and inaccurate reflection of the drivetrain's true performance, but may also cause equipment failure and test interruption. Wind turbine drivetrain testing often requires a long time and is costly; test interruptions mean a significant waste of manpower, resources, and time. Utility Model Content
[0004] The purpose of this invention is to provide a protective device for a spindle loading system, so as to solve the problem that the center of gravity of the spindle loading system changes in the direction of the spindle axis due to vibration and displacement caused by the spindle under different loads.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A protective device for a spindle loading system includes: a bearing housing and a support assembly, the bearing housing being used to mount the spindle of the spindle loading system, the bearing housing being movably mounted on the support assembly, and the bearing housing being able to move synchronously with the spindle loading system; a center of gravity adjustment assembly, the center of gravity adjustment assembly being mounted on the bearing housing, the center of gravity adjustment assembly being configured to adjust the center of gravity position of the bearing housing along the axial direction of the spindle; the center of gravity adjustment assembly includes a guide assembly and an adjustment block, the guide assembly extending along the axial direction of the spindle, the adjustment block being movably sleeved on the guide assembly to allow the adjustment block to move along the axial direction of the spindle; the adjustment block being movably mounted on the bearing housing to allow the adjustment block to adjust the center of gravity position of the bearing housing along the axial direction of the spindle.
[0007] Based on the aforementioned technical means, by moving the adjusting block on the guide assembly, the center of gravity of the bearing housing can be reasonably adjusted. This reduces uneven stress on key components such as the spindle and bearings, lowers the risk of fatigue damage, and extends their service life, thereby protecting the spindle loading system and reducing system maintenance costs and downtime. Secondly, the guide assembly in the center of gravity adjustment assembly extends along the spindle axial direction, and the adjusting block is movably fitted onto the guide assembly. This ensures the stability and accuracy of the adjusting block when moving along the spindle axial direction, thus ensuring that the center of gravity of the bearing housing can be adjusted when the spindle shifts in the axial direction. This allows the bearing housing and support assembly to effectively protect the spindle loading system and prevent the risk of displacement in the axial direction.
[0008] Furthermore, the guide assembly includes a first lead screw; the adjusting block is a first nut, the first lead screw is threadedly connected to the first nut, the first lead screw is mounted on the bearing seat, and the first lead screw extends along the axial direction of the main shaft so that the first nut can move along the axial direction of the first lead screw.
[0009] Based on the aforementioned technical means, the rotation of the first drive assembly can be converted into precise linear movement of the concave ball seat along the spindle axis through the cooperation of the first lead screw and the first nut. This enables precise adjustment of the support position of the spindle loading system, meeting the high-precision requirements for the support position under different working conditions. Secondly, the lead screw and nut drive typically has a large load-bearing capacity, capable of withstanding the weight of the spindle loading system and various forces generated during operation. It can reliably bear the corresponding load, ensuring the safety and stability of the support structure. Even when the spindle loading system is under a large load, it can effectively perform support and position adjustment, and is less prone to overload damage. Furthermore, the lead screw and nut drive has a self-locking function under certain conditions. That is, when the first drive assembly stops driving, the first lead screw and the first nut can maintain their current position, preventing the concave ball seat from moving unexpectedly due to external forces or other factors. This improves the reliability of the entire system and reduces the risk of failure caused by changes in the support position.
[0010] Furthermore, the guide assembly also includes a first drive member connected to the first lead screw, so that the first drive member can drive the first lead screw to rotate, and when the first drive member drives the first lead screw to rotate, the adjusting block can move along the axial direction of the first lead screw.
[0011] According to the above technical means, when the first driving component drives the first lead screw to rotate, the first nut can move along the axial direction of the lead screw, thereby driving the adjusting block to move, realizing precise adjustment of the bearing seat center of gravity position, improving the efficiency and accuracy of adjustment, reducing errors caused by human factors, and ensuring that the appropriate center of gravity position can be quickly and accurately adjusted under different working conditions.
[0012] Furthermore, it also includes a first guide rail, which is mounted on the bearing seat and extends along the axial direction of the main shaft, and is slidably connected to the adjusting block.
[0013] Based on the aforementioned technical means, the first guide rail can provide precise guidance for the movement of the first nut, ensuring that the first nut moves strictly along the axis of the main shaft, avoiding deviation or wobbling. This helps to ensure accurate docking and support between the concave ball seat and the convex ball head, improving the stability and reliability of the entire protection device's support for the main shaft loading system. Secondly, the first guide rail limits the movement path of the first nut, allowing it to slide only within the range permitted by the first guide rail. This effectively limits the position of the concave ball seat, ensuring that it performs support and adjustment operations within the design-required area, preventing it from exceeding the safe range and causing support failure or interference with other components.
[0014] Furthermore, the support assembly includes a telescopic member and a second driving member. The telescopic member extends radially along the main shaft, and the second driving member is connected to the telescopic member. The second driving member is capable of driving the telescopic member to move radially along the main shaft so that the telescopic member moves closer to or further away from the adjusting block.
[0015] Based on the above technical means, the telescopic component can move along the radial direction of the main shaft under the action of the second driving component. It can precisely control the telescopic component to move closer to or further away from the adjusting block, which helps to achieve fine adjustment of the position of the adjusting block in the radial direction of the main shaft. This allows for more precise adjustment of the center of gravity of the bearing seat to adapt to different working conditions and load requirements, thereby improving the stability and reliability of the entire main shaft loading system.
[0016] Furthermore, the telescopic component includes a second lead screw and a second nut, the second lead screw being threadedly connected to the second nut and extending radially along the main shaft; the second nut is connected to the second driving component, the second driving component being able to drive the second nut to rotate, thereby the second lead screw being able to move radially along the main shaft during the rotation of the second nut.
[0017] Based on the above technical means, the lead screw and nut transmission has high precision. The cooperation between the second lead screw and the second nut can accurately convert the rotational motion of the second driving component into the linear motion of the second lead screw along the direction perpendicular to the main shaft axis, thereby driving the convex ball head to achieve high-precision position adjustment, ensuring the matching accuracy between the convex ball head and the concave ball seat, and improving the stability and reliability of the entire support system.
[0018] Furthermore, the adjusting block includes a concave ball seat; the support assembly also includes a convex ball head, which is mounted on the second lead screw. The second lead screw can push the convex ball head closer to or away from the concave ball seat. When the concave ball seat approaches and abuts against the convex ball head, it can support the spindle loading system.
[0019] Based on the aforementioned technical means, the combination of the concave ball seat and the convex ball head can achieve universal connection. During the operation of the spindle loading system, various factors may cause the spindle to make slight axial, radial, and angular movements within a reasonable range. The convex ball head can rotate relatively flexibly within the concave ball seat, allowing the support point to adaptively adjust its angle and always maintain the best contact and support state with the spindle loading system. This effectively avoids local stress concentration or support instability caused by angular deviation, thus improving the reliability and stability of the support.
[0020] Furthermore, the second driving component includes a driven sprocket, a chain, a driving sprocket, and a first motor. The driven sprocket is connected to the driving sprocket via the chain. The driven sprocket is fixedly connected to the second nut. The driving sprocket is connected to the first motor. The first motor can drive the driving sprocket to rotate, so that during the rotation of the driving sprocket, it can drive the driven sprocket and the second nut to rotate.
[0021] Based on the aforementioned technical means, the first motor drives the drive sprocket to rotate, efficiently transmitting power to the driven sprocket via the chain, which in turn drives the second nut to rotate. This reduces energy loss during power transmission and improves the overall efficiency of the drive system. Secondly, the combination of the driven sprocket, chain, and drive sprocket results in a relatively simple chain drive structure that is easy to install and maintain. Furthermore, the meshing transmission between the chain and sprocket ensures stable power transmission and reduces the likelihood of slippage, thus ensuring the stability and reliability of the second nut's rotation.
[0022] Furthermore, the support assembly also includes a second guide rail and a housing. The second guide rail and the second lead screw are both mounted on the housing, and the second guide rail is connected to the second lead screw so that when the second lead screw moves, the second guide rail also moves synchronously.
[0023] Based on the aforementioned technical means, the second guide rail provides precise guidance for the movement of the second lead screw, ensuring it moves strictly along a direction perpendicular to the main shaft axis. This limits any lateral offset or swaying that may occur during the movement of the second lead screw, helping to ensure that the convex ball head moves along the designed trajectory. This improves the accuracy of the entire support assembly during position adjustment, allowing the convex ball head to more accurately engage with components such as the concave ball seat, ensuring the stability and reliability of the main shaft loading system. In situations requiring multiple adjustments to the convex ball head position, the second guide rail ensures that the second lead screw remains on the same precise path each time it moves, thereby improving the repeatability of the support assembly. This guarantees that the convex ball head accurately returns to the set position under different work cycles or operating conditions, ensuring the stable operation of the system.
[0024] Furthermore, the support assembly also includes a first trigger switch and a second trigger switch. The first trigger switch is mounted on the second lead screw, and the second trigger switch is mounted on the housing. The first trigger switch and the second trigger switch are respectively connected in communication with the second drive component. When the first trigger switch and the second trigger switch are in contact, the second drive component stops operating.
[0025] According to the above technical means, the first trigger switch is installed on the second lead screw, and the second trigger switch is installed on the housing. When the second lead screw moves to the set limit position, the first trigger switch will contact the second trigger switch. This design can accurately determine the movement boundary of the second lead screw, realize precise control of the stroke of the second lead screw, ensure that the convex ball head can only move within the specified range, meet specific working requirements, and improve the positioning accuracy of the entire support assembly.
[0026] The beneficial effects achieved by this utility model are:
[0027] This invention, by adjusting the movement of the adjusting block on the guide assembly, can rationally adjust the center of gravity of the bearing housing, reducing uneven stress on critical components such as the spindle and bearings, lowering the risk of fatigue damage, and extending their service life. This protects the spindle loading system and reduces system maintenance costs and downtime. Secondly, the guide assembly in the center of gravity adjustment assembly extends along the spindle axial direction, and the adjusting block is movably fitted onto the guide assembly, ensuring the stability and accuracy of the adjusting block's movement along the spindle axial direction. This ensures that when the spindle shifts in the axial direction, the center of gravity of the bearing housing can be adjusted, effectively protecting the spindle loading system and preventing the risk of displacement in the axial direction. Attached Figure Description
[0028] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0029] Figure 2 This is a structural diagram showing the connection relationship between the adjustment component and the support component of this utility model;
[0030] Figure 3 This is a schematic diagram of the structure of the support component of this utility model;
[0031] Figure 4 This is a schematic diagram showing the connection relationship between the bearing housing and the adjusting assembly of this utility model;
[0032] Figure 5 This is a schematic diagram showing the connection relationship between the convex ball head and the concave ball seat of this utility model.
[0033] Wherein, 1-bearing housing;
[0034] 2-Support assembly; 21-Telescopic component; 211-Second lead screw; 212-Second nut; 22-Second drive component; 221-Driven sprocket; 222-Chain; 223-Drive sprocket; 224-Second motor; 23-Convex ball head; 24-Second guide rail; 25-Housing; 26-First trigger switch; 27-Second trigger switch;
[0035] 3-Center for gravity adjustment assembly; 31-Guide assembly; 311-First lead screw; 312-First drive component; 32-Adjusting block; 321-Concave ball seat;
[0036] 4-First guide rail.
[0037] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. To better illustrate this embodiment, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings. The same or similar reference numerals correspond to the same or similar components. The terms describing positional relationships in the drawings are for illustrative purposes only and should not be construed as limiting the scope of this patent. Detailed Implementation
[0038] It should be noted that, unless otherwise specified, the embodiments and technical features in the embodiments of this application can be combined with each other, and the detailed descriptions in the specific embodiments should be understood as explanations of the purpose of this application and should not be regarded as undue limitations on this application.
[0039] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the specific technical solutions of this application will be further described in detail below with reference to the accompanying drawings of the embodiments of this application. The following embodiments are used to illustrate this application, but are not intended to limit the scope of this application.
[0040] In the embodiments of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this application, unless otherwise stated, "multiple" means two or more.
[0041] In the embodiments of this application, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral part; it can be a direct connection or an indirect connection through an intermediate medium.
[0042] In embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.
[0043] The technical solution of this embodiment will be described in detail below with reference to the accompanying drawings.
[0044] like Figure 1 As shown, this embodiment proposes a protective device for a spindle loading system, including: a bearing housing 1 and a support assembly 2. The bearing housing 1 is used to mount the spindle of the spindle loading system. The bearing housing 1 is movably mounted on the support assembly 2 and can move synchronously with the spindle loading system. A center of gravity adjustment assembly 3 is mounted on the bearing housing 1 and is configured to adjust the center of gravity position of the bearing housing 1 along the axial direction of the spindle. The center of gravity adjustment assembly 3 includes a guide assembly 31 and an adjusting block 32. The guide assembly 31 extends along the axial direction of the spindle, and the adjusting block 32 is movably sleeved on the guide assembly 31 so that the adjusting block 32 can move along the axial direction of the spindle. The adjusting block 32 is movably mounted on the bearing housing 1 so that the adjusting block 32 can adjust the center of gravity position of the bearing housing 1 along the axial direction of the spindle.
[0045] The specific steps for using the protection device designed above are as follows:
[0046] 1. Preparation stage: Install bearing housing 1 on the spindle of the spindle loading system, ensuring that bearing housing 1 can move synchronously with the spindle loading system, and then hoist the spindle to the predetermined installation position;
[0047] 2. Installation stage: The center of gravity adjustment component 3 is installed on the bearing housing 1 so that it can adjust the center of gravity position of the bearing housing 1. Among them, the guide component 31 extends along the axial direction of the main shaft, and the adjusting block 32 is movably sleeved on the guide component 31 to provide guidance for the movement of the adjusting block 32.
[0048] 3. Adjusting the center of gravity: When it is necessary to adjust the center of gravity of bearing housing 1, i.e., when the spindle is displaced in the axial direction, this can be achieved by moving the adjusting block 32 along the guide assembly 31 (along the axial direction of the spindle). Since the adjusting block 32 is movably mounted on bearing housing 1, as the position of the adjusting block 32 changes in the axial direction of the spindle, the center of gravity of bearing housing 1 will also change accordingly, thereby meeting the requirements for the center of gravity position under different working conditions, and achieving the purpose of optimizing system performance and protecting the spindle loading system.
[0049] 4. System Operation: After the above installation and center of gravity adjustment are completed, the spindle loading system can operate normally. The bearing housing 1 will move synchronously with the system. At the same time, the center of gravity adjustment component 3 is in a state where the center of gravity position can be finely adjusted at any time to deal with various situations that may occur during operation and ensure the stability and safety of the entire system.
[0050] By adjusting the movement of the adjusting block 32 on the guide assembly 31, the center of gravity of the bearing housing 1 can be reasonably adjusted. This reduces uneven stress on key components such as the spindle and bearings, lowers the risk of fatigue damage, and extends their service life, thereby protecting the spindle loading system and reducing system maintenance costs and downtime. Secondly, the guide assembly 31 in the center of gravity adjustment assembly 3 extends along the axial direction of the spindle, and the adjusting block 32 is movably fitted onto the guide assembly 31. This ensures the stability and accuracy of the adjusting block 32 when moving along the spindle axial direction, thus ensuring that the center of gravity of the bearing housing 1 can be adjusted when the spindle is displaced in the axial direction. This allows the bearing housing 1 and the support assembly 2 to effectively protect the spindle loading system and prevent the risk of axial displacement of the spindle loading system.
[0051] like Figure 4 As shown, in this embodiment, the guide assembly 31 includes a first lead screw 311; the adjusting block 32 is a first nut, the first lead screw 311 is threadedly connected to the first nut, the first lead screw 311 is mounted on the bearing seat 1, and the first lead screw 311 extends along the axial direction of the main shaft so that the first nut can move along the axial direction of the first lead screw 311.
[0052] Through the cooperation of the first lead screw 311 and the first nut, the rotation of the first drive assembly can be converted into precise linear movement of the concave ball seat 321 along the axis of the main shaft, realizing precise adjustment of the support position of the main shaft loading system and meeting the high precision requirements of the support position under different working conditions. Secondly, the lead screw and nut drive usually has a large load-bearing capacity, which can withstand the weight of the main shaft loading system and various forces generated during operation. It can reliably bear the corresponding load, ensuring the safety and stability of the support structure. Even when the main shaft loading system is under a large load, it can effectively perform support and position adjustment, and is not prone to overload damage. Moreover, the lead screw and nut drive has a self-locking function under certain conditions. That is, when the first drive assembly stops driving, the first lead screw 311 and the first nut can maintain their current position, preventing the concave ball seat 321 from moving unexpectedly due to external forces or other factors, improving the reliability of the entire system and reducing the risk of failure caused by changes in the support position.
[0053] like Figure 4 As shown, in this embodiment, the guide assembly 31 further includes a first drive member 312, which is connected to the first lead screw 311. When the first drive member 312 drives the first lead screw 311 to rotate, the first nut can move along the axial direction of the first lead screw 311.
[0054] To maintain the stability of the first lead screw 311, in this embodiment the first driving member 311 is a first motor, one end of the first lead screw 311 is connected to the first motor so that the first motor can drive the first lead screw 311 to rotate, the first driving member 312 is fixedly connected to the bearing seat 1, and the other end of the first lead screw 311 is rotatably connected to the bearing seat 1.
[0055] When the first driving component 312 drives the first lead screw 311 to rotate, the first nut can move along the axial direction of the lead screw, thereby driving the adjusting block 32 to move, realizing precise adjustment of the center of gravity position of the bearing seat 1, improving the efficiency and accuracy of adjustment, reducing errors caused by human factors, and ensuring that the appropriate center of gravity position can be quickly and accurately adjusted under different working conditions.
[0056] like Figure 4 As shown, in this embodiment, a first guide rail 4 is also included. The first guide rail 4 is mounted on the bearing seat 1 and extends along the axial direction of the main shaft. The first guide rail 4 is slidably connected to the adjusting block 32.
[0057] The first guide rail 4 provides precise guidance for the movement of the first nut, ensuring that the first nut moves strictly along the axis of the main shaft, avoiding deviation or wobbling. This helps to ensure accurate docking and support between the concave ball seat 321 and the convex ball head 23, improving the stability and reliability of the entire protection device's support for the main shaft loading system. Secondly, the first guide rail 4 limits the movement path of the first nut, allowing it to slide only within the range permitted by the first guide rail 4. This effectively limits the position of the concave ball seat 321, ensuring that it performs support and adjustment operations within the design requirements area, preventing it from exceeding the safe range and causing support failure or interference with other components.
[0058] like Figure 3 As shown, in this embodiment, the support component 2 includes a telescopic member 21 and a second driving member 22. The telescopic member 21 extends radially along the main shaft, and the second driving member 22 is connected to the telescopic member 21. The second driving member 22 can drive the telescopic member 21 to move radially along the main shaft so that the telescopic member 21 moves closer to or further away from the adjusting block 32.
[0059] When the spindle loading system is subjected to impact or vibration perpendicular to the spindle direction, the telescopic component 21 can play a role in buffering and shock absorption to a certain extent. By telescopic movement along the vertical direction, it absorbs and disperses part of the impact force, reduces the vibration energy transmitted to the spindle and other components, thereby reducing the risk of damage to the spindle loading system and extending the service life of the equipment.
[0060] like Figure 2 and Figure 3 As shown, in this embodiment, the telescopic member 21 includes a second lead screw 211 and a second nut 212. The second lead screw 211 is threadedly connected to the second nut 212, and the second lead screw 211 extends in the radial direction of the main shaft. The second nut 212 is connected to the second driving member 22, and the second driving member 22 can drive the second nut 212 to rotate. Thus, the second lead screw 211 can move in the radial direction of the main shaft during the rotation of the second nut 212.
[0061] The lead screw and nut drive has high precision. The cooperation between the second lead screw 211 and the second nut can accurately convert the rotational motion of the second drive component 22 into the linear motion of the second lead screw 211 along the direction perpendicular to the main shaft axis, thereby driving the convex ball head 23 to achieve high-precision position adjustment, ensuring the cooperation accuracy between the convex ball head 23 and the concave ball seat 321, and improving the stability and reliability of the entire support system.
[0062] like Figure 5As shown, in this embodiment, the adjusting block 32 includes a concave ball seat 321; the support assembly 2 also includes a convex ball head 23, which is mounted on the second lead screw 211. The second lead screw 211 can push the convex ball head 23 closer to or away from the concave ball seat 321. When the concave ball seat 321 approaches and abuts against the convex ball head 23, it can support the spindle loading system.
[0063] To achieve the automation effect of the first driving component 312, this embodiment also includes a detection device, which is installed on the adjustment block 32 and is used to detect the distance between the concave ball seat 321 and the convex ball head 23.
[0064] The mating method between the concave ball seat 321 and the convex ball head 23 enables universal connection. During the operation of the spindle loading system, various factors may cause the spindle to make slight axial, radial, and angular movements within a reasonable range. The convex ball head 23 can rotate relatively flexibly within the concave ball seat 321, allowing the support point to adaptively adjust its angle and always maintain optimal contact and support with the spindle loading system. This effectively avoids local stress concentration or support instability caused by angular deviation, thus improving the reliability and stability of the support.
[0065] like Figure 2 As shown, in this embodiment, the second driving component 22 includes a driven sprocket 221, a chain 222, a driving sprocket 223, and a first motor 224. The driven sprocket 221 is connected to the driving sprocket 223 via the chain 222. The driven sprocket 221 is fixedly connected to the second nut 212. The driving sprocket 223 is connected to the first motor 224. The first motor 224 can drive the driving sprocket 223 to rotate, so that during the rotation of the driving sprocket 223, the driven sprocket 221 and the second nut 212 can be driven to rotate.
[0066] The first motor 224 drives the drive sprocket 223 to rotate, and the power is efficiently transmitted to the driven sprocket 221 via the chain 222, which in turn drives the second nut 212 to rotate. This can reduce energy loss during power transmission to a certain extent and improve the working efficiency of the entire drive system. Secondly, the combination of the driven sprocket 221, chain 222 and drive sprocket 223 makes this chain drive structure relatively simple, easy to install and maintain; and during transmission, the meshing transmission between the chain and sprocket can ensure relatively stable power transmission and is not prone to slippage, thereby ensuring the stability and reliability of the rotation of the second nut 212.
[0067] like Figure 3As shown, in this embodiment, the support component 2 also includes a second guide rail 24 and a housing 25. The second guide rail 24 and the second lead screw 211 are both mounted on the housing 25, and the second guide rail 24 is connected to the second lead screw 211 so that when the second lead screw 211 moves, the second guide rail 24 also moves synchronously.
[0068] The second guide rail 24 provides precise guidance for the movement of the second lead screw 211, ensuring it moves strictly along a direction perpendicular to the spindle axis. This limits any lateral offset or swaying that may occur during movement, helping to ensure the convex ball head 23 moves along the designed trajectory. This improves the accuracy of the entire support assembly 2 during position adjustment, allowing the convex ball head 23 to more accurately engage with components such as the concave ball seat 321, ensuring the stability and reliability of the spindle loading system. When multiple adjustments to the position of the convex ball head 23 are required, the second guide rail 24 ensures that the second lead screw 211 remains on the same precise path with each movement, thereby improving the repeatability of the support assembly 2. This guarantees that the convex ball head 23 accurately returns to its set position under different working cycles or conditions, ensuring stable system operation.
[0069] like Figure 2 As shown, in this embodiment, the support component 2 also includes a first trigger switch 26 and a second trigger switch 27. The first trigger switch 26 is mounted on the second lead screw 211, and the second trigger switch 27 is mounted on the housing 25. The first trigger switch 26 and the second trigger switch 27 are respectively connected to the second drive component 22 in communication. When the first trigger switch 26 and the second trigger switch 27 are in contact, the second drive component 22 stops running.
[0070] The first trigger switch 26 is mounted on the second lead screw 211, and the second trigger switch 27 is mounted on the housing 25. When the second lead screw 211 moves to the set limit position, the first trigger switch 26 will contact the second trigger switch 27. This design can accurately determine the movement boundary of the second lead screw 211, realize precise control of the stroke of the second lead screw 211, ensure that the convex ball head 23 can only move within the specified range, meet specific working requirements, and improve the positioning accuracy of the entire support assembly 2.
[0071] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments. The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made based on the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.
Claims
1. A protection device for a spindle loading system, characterized in that include: The bearing housing (1) and the support assembly (2) are provided. The bearing housing (1) is used to install the spindle of the spindle loading system. The bearing housing (1) is movably mounted on the support assembly (2) and can move synchronously with the spindle loading system. A center of gravity adjustment assembly (3) is mounted on the bearing housing (1) and is configured to adjust the center of gravity position of the bearing housing (1) along the axial direction of the main shaft. The center of gravity adjustment assembly (3) includes a guide assembly (31) and an adjustment block (32). The guide assembly (31) extends along the axial direction of the main shaft, and the adjustment block (32) is movably sleeved on the guide assembly (31) so that the adjustment block (32) can move along the axial direction of the main shaft. The adjustment block (32) is movably mounted on the bearing seat (1) so that the adjustment block (32) can adjust the center of gravity position of the bearing seat (1) along the axial direction of the main shaft.
2. A protection device for a spindle loading system according to claim 1, characterized in that The guide assembly (31) includes a first lead screw (311); the adjusting block (32) is a first nut, the first lead screw (311) is threadedly connected to the first nut, the first lead screw (311) is mounted on the bearing seat (1), and the first lead screw (311) extends along the axial direction of the main shaft so that the first nut can move along the axial direction of the first lead screw (311).
3. A protection device for a spindle loading system according to claim 2, characterized in that The guide assembly (31) further includes a first drive member (312), which is connected to the first lead screw (311) so that the first drive member (312) can drive the first lead screw (311) to rotate. When the first drive member (312) drives the first lead screw (311) to rotate, the adjusting block (32) can move along the axial direction of the first lead screw (311).
4. A protection device for a spindle loading system according to claim 2, characterized in that It also includes a first guide rail (4), which is mounted on the bearing seat (1) and extends along the axial direction of the main shaft. The first guide rail (4) is slidably connected to the adjusting block (32).
5. A protection device for a spindle loading system according to claim 2, characterized in that The support assembly (2) includes a telescopic member (21) and a second drive member (22). The telescopic member (21) extends radially along the main shaft. The second drive member (22) is connected to the telescopic member (21). The second drive member (22) can drive the telescopic member (21) to move radially along the main shaft so that the telescopic member (21) moves closer to or further away from the adjusting block (32).
6. A protection device for a spindle loading system according to claim 5, characterized in that The telescopic component (21) includes a second lead screw (211) and a second nut (212). The second lead screw (211) is threadedly connected to the second nut (212), and the second lead screw (211) extends radially along the main shaft. The second nut (212) is connected to the second drive component (22), and the second drive component (22) can drive the second nut (212) to rotate. Thus, the second lead screw (211) can move radially along the main shaft during the rotation of the second nut (212).
7. A protection device for a spindle loading system according to claim 6, characterized in that The adjusting block (32) includes a concave ball seat (321); the support assembly (2) also includes a convex ball head (23), which is mounted on the second lead screw (211). The second lead screw (211) can push the convex ball head (23) closer to or away from the concave ball seat (321). When the concave ball seat (321) approaches and abuts against the convex ball head (23), it can support the spindle loading system.
8. A protection device for a spindle loading system according to claim 6, characterized in that The second driving component (22) includes a driven sprocket (221), a chain (222), a driving sprocket (223), and a first motor (224). The driven sprocket (221) is connected to the driving sprocket (223) through the chain (222). The driven sprocket (221) is fixedly connected to the second nut (212). The driving sprocket (223) is connected to the first motor (224). The first motor (224) can drive the driving sprocket (223) to rotate so that the driven sprocket (221) and the second nut (212) can rotate during the rotation of the driving sprocket (223).
9. A protection device for a spindle loading system according to claim 6, characterized in that The support assembly (2) further includes a second guide rail (24) and a housing (25). The second guide rail (24) and the second lead screw (211) are both mounted on the housing (25), and the second guide rail (24) is connected to the second lead screw (211) so that when the second lead screw (211) moves, the second guide rail (24) also moves synchronously.
10. A protection device for a spindle loading system according to claim 9, characterized in that The support assembly (2) further includes a first trigger switch (26) and a second trigger switch (27). The first trigger switch (26) is mounted on the second lead screw (211), and the second trigger switch (27) is mounted on the housing (25). The first trigger switch (26) and the second trigger switch (27) are respectively connected to the second drive unit (22) in communication. When the first trigger switch (26) and the second trigger switch (27) are in contact, the second drive unit (22) stops running.