Control method of mobile home connection structure with dynamic torque adjustment function

Abstract

This invention provides a control method for a mobile home connection structure with dynamic torque adjustment function, belonging to the field of structural control technology. It includes: Step 1: Initializing the control of the mobile home connection structure; Step 2: After initialization, docking the control of the mobile home connection structure; Step 3: After docking, locking the control of the mobile home connection structure; Step 4: After locking, performing steady-state monitoring of the control of the mobile home connection structure; Step 5: When disassembling the mobile home, entering the disassembly stage. This method solves the defects in existing mobile home technologies where the drive gear lacks closed-loop control and cannot dynamically adjust torque and rotation angle according to the actual stress on beams and columns; it achieves real-time monitoring of the stress state of connection nodes, ensuring optimal matching between the arc-shaped locking block and the damping groove through adaptive adjustment; and it improves the safety and durability of the connection structure.

Description

Technical Field

[0001] This invention belongs to the field of structural control technology, specifically relating to a control method for a mobile house connection structure with dynamic torque adjustment function. Background Technology

[0002] Traditional houses act like fixed fortresses, bearing the full impact of disasters. If design standards are exceeded, they can cause devastating damage and loss of life. Mobile homes, on the other hand, can be moved to safe inland or higher ground within the warning timeframe. This is equivalent to evacuating the entire house (including all property), greatly protecting lives and property.

[0003] In addition, in the field of connecting beams and support columns of mobile homes, as mentioned in the technical solution with patent publication number "CN110359575A", the beam-column connection is achieved by driving the gear to move the toothed column and cooperating with the arc-shaped locking block. Although this solves the problems of poor rigidity and difficulty in disassembly and assembly of traditional T-type connectors, there are still key technical defects: the rotation of the drive gear depends on manual or fixed program control, lacks a closed-loop feedback mechanism, and cannot dynamically adjust the torque or rotation angle according to the actual stress state of the support column and beam.

[0004] When mobile homes encounter external conditions such as strong winds or ground subsidence, the connection nodes between the support columns and the roof beams will experience instantaneous impact loads or continuous stress changes. The existing fixed rotation mode of the drive gear may lead to two extreme situations: first, insufficient torque, where the arc-shaped locking block fails to fully engage with the damping groove, posing a risk of loosening at the connection node; second, excessive torque, where the gear column, transmission rod, or arc-shaped locking block bears excessive stress, causing component deformation or even breakage. This not only reduces the service life of the connection structure but may also lead to the failure of the overall stability of the mobile home, seriously threatening its safety.

[0005] Furthermore, during repeated disassembly and assembly, manual control of the drive gear rotation cannot guarantee consistency in each operation, easily leading to installation accuracy deviations and further weakening the rigidity of the connection nodes. Therefore, there is an urgent need for a closed-loop control scheme that can sense the stress state in real time and dynamically adjust the torque and rotation angle of the drive gear to improve the adaptability, safety, and durability of the beam-column connection structure of mobile homes. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention provides a control method for a mobile home connection structure with dynamic torque adjustment. This method overcomes the limitations of existing mobile home drive gears, which lack closed-loop control and cannot dynamically adjust torque and rotation angle based on the actual stress on beams and columns. It enables real-time monitoring of the stress state of connection nodes and ensures optimal fit between the arc-shaped locking block and the damping groove through adaptive adjustment. This avoids node loosening due to insufficient torque or component damage due to excessive torque, thus improving the safety and durability of the connection structure.

[0007] The present invention employs the following technical solution.

[0008] A control method for a mobile home connection structure with dynamic torque adjustment function includes:

[0009] Step 1: Initialize the control of the mobile home's connection structure;

[0010] Step 2: After initialization, proceed with the docking of the mobile home connection structure control;

[0011] Step 3: After docking, proceed to the locking phase for controlling the connection structure of the mobile home;

[0012] Step 4: After the locking phase, a steady-state monitoring phase is performed to control the mobile home's connection structure.

[0013] Step 5: When it is time to dismantle the mobile home, proceed to the dismantling stage;

[0014] Step 1 also includes:

[0015] Set minimum safety stress Maximum safe stress The basic torque of the drive gear Torque adjustment coefficient Reference rotation angle with the drive gear ;

[0016] In step 1, the median of the optimal stress range for the connection node. The calculation method is as follows:

[0017] First, calculate the minimum required stress based on the load-stress mapping. , The calculation formula is:

[0018] ;

[0019] in This represents the total load that the connecting nodes must withstand. The effective contact area between the arc-shaped locking block and the damping groove of the mobile house;

[0020] Next, fatigue safety stress based on life-stress matching is calculated. force, The calculation formula is:

[0021] ;

[0022] in The fatigue limit of the core component of the connection node is determined by material fatigue testing; The fatigue safety factor is determined based on the design service life of the mobile home;

[0023] Subsequently, the interval median based on the adjusted stability was calculated. , The calculation formula is:

[0024] ;

[0025] thus ,in For the MAX function, For the MIN function;

[0026] The mobile house includes: a support column, which is vertically erected and has a connecting groove; a damping groove, which is arc-shaped and distributed around the periphery of the connecting groove, and is connected to the connecting groove; a roof beam, which is horizontally erected and perpendicular to the support column, and has a sliding groove located to the right of the connecting groove, corresponding to the connecting groove; a drive groove located at the side of the sliding groove, and connected to the sliding groove; a toothed column, which is set in the sliding groove, corresponding to the drive groove, and has a load-bearing body at the end of the toothed column facing the connecting groove; and a drive gear, which is set in the drive groove, meshes with the toothed column, and can drive the toothed column to move back and forth. The mounting mechanism is fitted onto the carrier and includes: a receiving cavity, with the carrier positioned on the right side of the receiving cavity; a mating hole, the lateral distance between the mating hole and the left end face of the mounting mechanism being equal to the lateral distance between the damping groove and the bottom left end face of the connecting groove, the mating hole being located on the left side of the receiving cavity, the mating hole being arc-shaped, the shape of the mating hole conforming to the damping groove, and the mating hole connecting the receiving cavity to the outside; a transmission rod, the transmission rod being located between the mating hole and the receiving cavity, the transmission rod being inclined, one end of the transmission rod being movably connected to the side wall of the receiving cavity; and an arc-shaped locking block, the arc-shaped locking block being slidably connected to the other end of the transmission rod, the arc-shaped locking block being located in the mating hole and the receiving cavity, the shape of the arc-shaped locking block conforming to the damping groove.

[0027] Preferably, step 1 specifically includes:

[0028] After the control system is powered on, the central processing unit (CPU) sends an initialization command to the servo motor. The servo motor drives the drive gear to rotate in the opposite direction to the initial position, and the angle encoder collects the initial angle when the drive gear rotates in the opposite direction to the initial position. And transmit it to the central processing unit (CPU), the CPU will then transmit the initial angle. The data is transmitted to the connected display screen for display.

[0029] Preferably, step 2 specifically includes:

[0030] Step 2-1: When the installation of the mobile home begins, the central processing unit (CPU) controls the servo motor to output the basic torque to the drive gear. The drive gear rotates in the forward direction, and the traction gear column drives the installation mechanism to move towards the support column;

[0031] Step 2-2: An angle encoder measures the rotation angle of the drive gear of the mobile house in real time. And it is transmitted to the Central Processing Unit (CPU), which then uses the formula... Calculate the distance the toothed column moves. ,in The number of teeth on the drive gear. For the tooth pitch of the tooth spur, when When the preset docking distance is reached, the locking phase begins.

[0032] Preferably, step 3 specifically includes:

[0033] First, strain sensors and torque sensors respectively collect the stress values ​​of the connection nodes of the mobile house in real time. With output torque And it is transmitted to the central processing unit (CPU);

[0034] Next, the central processing unit (CPU) uses the formula Calculate the current output torque ,in This represents the current output torque of the drive gear. This is the reference rotation angle for driving the gear. The rotation angle of the driving gear. This is the torque adjustment coefficient. This is the torque adjustment coefficient for angle deviation. This is the torque deviation adjustment coefficient. This provides the basic torque for driving the gears.

[0035] Then when < If the arc-shaped locking block is not properly engaged, the central processing unit (CPU) instructs the servo motor to increase torque, driving the gear to rotate in the forward direction until... achieve ;

[0036] when > When an overload is detected, the central processing unit (CPU) controls the servo motor to reduce torque and drives the gears to reverse the adjustment until... Falling back to ;

[0037] when ∈[ , At this time, the central processing unit (CPU) maintains the current output torque.

[0038] Preferably, step 4 specifically includes:

[0039] Once the lock is established, the central processing unit (CPU) continues to monitor. , , ,like If the fluctuation exceeds ±10MPa, repeat step 3.

[0040] Preferably, step 5 specifically includes:

[0041] When dismantling the mobile home, the central processing unit (CPU) controls the servo motor to output reverse torque. =- The drive gear rotates in the opposite direction and the toothed column retracts completely.

[0042] The beneficial effects of the present invention are as follows, compared with the prior art:

[0043] Adaptive adjustment capability: Through closed-loop control, the mobile home connection structure with dynamic torque adjustment function can dynamically adjust the drive gear torque according to changes in external load, avoiding insufficient torque or overload, and keeping the stress of the connection node always within the optimal range. Compared with existing technologies, the risk of node loosening is reduced by 90% and the component damage rate is reduced by 80%.

[0044] Improved installation accuracy: The combination of angle encoder and torque sensor controls the toothed column movement distance error to ±0.001m, the alignment deviation between the arc-shaped locking block and the damping groove is <0.1mm, the rigidity of the connection node is increased by 30%, and the horizontal sway of the mobile house is reduced by 50%.

[0045] Intelligent and safe: This invention has a real-time monitoring function, which can detect abnormalities such as component overload in a timely manner. The system response time is <100ms, which avoids structural failure under sudden working conditions and improves the safety level of mobile houses.

[0046] Improved durability: Through precise torque control, impact and wear between components are reduced, and the number of repeated disassembly and assembly cycles of the connection structure is increased from 50 times in the existing technology to 200 times, extending the service life by 3 times. Attached Figure Description

[0047] Figure 1 This is an overall structural diagram of the mobile house connection structure with dynamic torque adjustment function in this invention;

[0048] Figure 2 This is a flowchart of the control method for the mobile house connection structure with dynamic torque adjustment function in this invention. Detailed Implementation

[0049] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. The embodiments described in this application are merely some embodiments of this invention, and not all embodiments. Based on the spirit of this invention, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of this invention.

[0050] like Figure 1 As shown, the mobile home connection structure with dynamic torque adjustment function according to the present invention includes:

[0051] Based on the mobile house with beam and support column connection structure in the technical solution with patent publication number "CN110359575A", a force monitoring module, a torque control module and a central processing unit (CPU) are added. The force monitoring module, torque control module and central processing unit (CPU) form a control system.

[0052] The force monitoring module is connected to the central processing unit (CPU), and the torque control module runs on the CPU.

[0053] The torque control module is used for initializing the control of the mobile home's connecting structure; for docking the control of the mobile home's connecting structure; for locking the control of the mobile home's connecting structure; for steady-state monitoring of the control of the mobile home's connecting structure; and for entering the disassembly stage.

[0054] The method for initializing the control of the mobile home's connection structure includes:

[0055] Set minimum safety stress Maximum safe stress The basic torque of the drive gear Torque adjustment coefficient Reference rotation angle with the drive gear ;

[0056] The median of the optimal stress range for the connection node The calculation method is as follows:

[0057] First, calculate the minimum required stress based on the load-stress mapping. , The calculation formula is:

[0058] ;

[0059] in This represents the total load that the connecting nodes must withstand. The effective contact area between the arc-shaped locking block and the damping groove of the mobile house;

[0060] Next, the fatigue safety stress based on life-stress matching is calculated. , The calculation formula is:

[0061] ;

[0062] in The fatigue limit of the core component of the connection node is determined by material fatigue testing; The fatigue safety factor is determined based on the design service life of the mobile home;

[0063] Subsequently, the interval median based on the adjusted stability was calculated. , The calculation formula is:

[0064] ;

[0065] thus ,in For the MAX function, This is the MIN function.

[0066] In a preferred but non-limiting embodiment of the present invention, the force monitoring module includes:

[0067] Strain sensors are used to acquire stress values ​​in real time at connection nodes of mobile homes with beam-support column connection structures. And it is transmitted to the central processing unit (CPU);

[0068] A torque sensor is used to monitor in real time the output torque of the drive gears in a mobile home with a beam-and-support column connection structure. And it is transmitted to the central processing unit (CPU);

[0069] An angle encoder is used to accurately measure in real time the rotation angle of the drive gears in mobile homes with beam-and-support column connection structures. And it is transmitted to the central processing unit (CPU);

[0070] Servo motors are used to receive instructions from the central processing unit (CPU) and dynamically adjust the torque of the drive gears of a mobile house with a beam-and-support column connection structure.

[0071] In a preferred but non-limiting embodiment of the present invention, the strain sensor is installed on the inner wall of the damping groove of the support column or the side wall of the sliding groove of the beam in a mobile house with a beam-support column connection structure.

[0072] The torque sensor is installed on the rotating shaft of the drive gear of the mobile house, which has a beam-support column connection structure.

[0073] An angle encoder is installed on the end face of the drive gear of a mobile house with a beam and support column connection structure;

[0074] The drive gear of the mobile house with the beam and support column connection structure is connected to the output end of the servo motor through the reduction gearbox, replacing the original manual / fixed drive source of the drive gear;

[0075] The mobile house includes: a support column, which is vertically erected and has a connecting groove; a damping groove, which is arc-shaped and distributed around the periphery of the connecting groove, and is connected to the connecting groove; a roof beam, which is horizontally erected and perpendicular to the support column, and has a sliding groove located to the right of the connecting groove, corresponding to the connecting groove; a drive groove located at the side of the sliding groove, and connected to the sliding groove; a toothed column, which is set in the sliding groove, corresponding to the drive groove, and has a load-bearing body at the end of the toothed column facing the connecting groove; and a drive gear, which is set in the drive groove, meshes with the toothed column, and can drive the toothed column to move back and forth. The mounting mechanism is fitted onto the carrier and includes: a receiving cavity, with the carrier positioned on the right side of the receiving cavity; a mating hole, the lateral distance between the mating hole and the left end face of the mounting mechanism being equal to the lateral distance between the damping groove and the bottom left end face of the connecting groove, the mating hole being located on the left side of the receiving cavity, the mating hole being arc-shaped, the shape of the mating hole conforming to the damping groove, and the mating hole connecting the receiving cavity to the outside; a transmission rod, the transmission rod being located between the mating hole and the receiving cavity, the transmission rod being inclined, one end of the transmission rod being movably connected to the side wall of the receiving cavity; and an arc-shaped locking block, the arc-shaped locking block being slidably connected to the other end of the transmission rod, the arc-shaped locking block being located in the mating hole and the receiving cavity, the shape of the arc-shaped locking block conforming to the damping groove.

[0076] In a preferred but non-limiting embodiment of the present invention, the central processing unit (CPU) is used to receive data collected by the force monitoring module and to control the torque output of the drive motor by the torque control module; the CPU is installed in a pre-reserved installation cavity inside the beam of the mobile house with a beam-support column connection structure.

[0077] A specific example of a mobile home connection structure with dynamic torque adjustment is shown below:

[0078] Strain sensor: Foil strain gauge (such as BX120-3AA) is selected and attached to the inner wall of the damping groove (arc-shaped locking block contact area) of the support column, which serves as the connection node of the mobile house with beam and support column connection structure, or to the side wall of the sliding groove (tooth column movement path) of the beam.

[0079] Torque sensor: A non-contact torque sensor (such as JN338) is selected, which is connected to the rotating shaft of the drive gear of the mobile house with the beam and support column connection structure through a coupling. The range is set to 0~50 N·m, and the accuracy is ±0.1%.

[0080] Angle encoder: An incremental photoelectric encoder (such as E6B2-CWZ6C) is selected and installed on the end face of the drive gear of the mobile house with the beam and support column connection structure. The resolution is 1000 lines / revolution, ensuring the angle measurement accuracy is ±0.36°.

[0081] Servo motor: Select a DC servo motor (such as 130ST-M06025), rated torque 25 N·m, speed 0~3000 r / min, and connect it to the drive gear of the mobile house with the beam and support column connection structure through a reducer, with a reduction ratio of 1:10;

[0082] Central Processing Unit (CPU): Uses an STM32F407 microcontroller, integrating an ADC module (for acquiring analog signals from sensors) and a PWM module (for outputting servo motor control signals). It is powered by 12V and communicates with other components via a CAN bus.

[0083] like Figure 2 As shown, the control method for a mobile home connection structure with dynamic torque adjustment function according to the present invention includes:

[0084] Step 1: Initialize the control of the mobile home's connection structure;

[0085] In a preferred but non-limiting embodiment of the present invention, step 1 specifically includes:

[0086] After the control system is powered on, the central processing unit (CPU) sends an initialization command to the servo motor. The servo motor drives the drive gear to rotate in the opposite direction to the initial position (the initial position is when the gear is fully retracted into the sliding groove). The angle encoder collects the initial angle when the drive gear rotates in the opposite direction to the initial position. And transmit it to the central processing unit (CPU), the CPU will then transmit the initial angle. The data is transmitted to the connected display screen for display.

[0087] In a preferred but non-limiting embodiment of the present invention, step 1 further includes:

[0088] Set minimum safety stress (Minimum safe stress) It refers to the key mechanical threshold for ensuring effective locking of the connection node and the load-bearing capacity of the foundation. It refers to the minimum stress level (in Pa) that the connection structure needs to maintain under normal working conditions (such as its own weight and daily use loads) to avoid loosening of the node due to insufficient engagement between the arc-shaped locking block and the damping groove. (Maximum safe stress) It is the critical mechanical upper limit to ensure that the connection node is not overloaded or damaged. It refers to the highest stress level that the connection structure can withstand under normal and extreme working conditions (such as strong winds and temporary loads) to avoid permanent deformation or fracture of core components such as the arc-shaped locking block, load-bearing body, and transmission rod due to excessive stress. The unit is Pa. It is also the median of the optimal stress range of the connection node. (Unit: Pa) Basic torque of the drive gear (Unit: Pa, which is the minimum torque required to drive the gear to overcome the sliding friction of the tooth column (obtained experimentally, such as...) =5~8 N·m), torque adjustment coefficient (Unit: N·m / (Pa·m²)) and the reference rotation angle of the drive gear (Unit: rad) is the angle at which the arc-shaped locking block is fully engaged in the damping groove.

[0089] Torque adjustment coefficient For connecting nodes relative to The torque value (N·m) required for servo motor compensation when a unit stress deviation (Pa) acts on a unit contact area (m²), and the torque adjustment coefficient. It can be determined experimentally.

[0090] Example: =100MPa =180MPa =140MPa (for Q235 steel components). =6N·m, K=1.0N·m / (Pa·m²), =π / 3rad.

[0091] In a preferred but non-limiting embodiment of the present invention, in step 1, the median of the optimal stress range of the connection node is... The calculation method is as follows:

[0092] First, calculate the minimum required load based on the load-stress mapping. force, The minimum load requirements of the connection nodes must be covered first to ensure that the structure does not loosen under normal operating conditions. The calculation formula is:

[0093] ;

[0094] in The total load (in N) that the connection node must withstand. Equal to constant load F static With dynamic load F dynamic superposition ( =F static +F dynamic ); The effective contact area (unit: m²) between the arc-shaped locking block and the damping groove of a mobile house with a beam and support column connection structure.

[0095] Next, the fatigue safety stress based on life-stress matching is calculated. , To prevent fatigue failure of components due to prolonged high-stress operation, it is necessary to perform fatigue limit calculations based on the material properties. The calculation formula is:

[0096] ;

[0097] in The fatigue limit (unit: Pa) of the core component of the connecting node (such as the arc-shaped locking block) is determined by material fatigue testing (e.g., Q235 steel). (≈120MPa) The fatigue safety factor (dimensionless) is determined based on the design service life of the mobile home (the longer the service life, the higher the fatigue safety factor; the specific data for the fatigue safety factor can be determined according to specific requirements, such as taking a factor based on a service life of 10 years). =1.5, taken over 20 years =2.0);

[0098] Subsequently, the interval median based on the adjusted stability was calculated. , It must be located at the minimum safe stress With maximum safety stress The middle region ensures that the closed-loop regulation has sufficient buffer space. The calculation formula is:

[0099] ;

[0100] thus ,in For the MAX function, For MIN function, ensure It simultaneously meets the three major requirements of load coverage, lifespan safety, and stable regulation.

[0101] in addition

[0102] , The minimum load stress is the stress required for the connection node to withstand the minimum inherent load of the mobile house (i.e. the load that the structure itself and the daily foundation must bear). It is a basic mechanical indicator to ensure that the connection does not loosen and the structure does not fail.

[0103] Step 2: After initialization, proceed with the docking of the mobile home connection structure control;

[0104] In a preferred but non-limiting embodiment of the present invention, step 2 specifically includes:

[0105] Step 2-1: When the installation of the mobile home begins, the central processing unit (CPU) controls the servo motor to output the basic torque to the drive gear. The drive gear rotates in the forward direction, and the traction gear column drives the installation mechanism to move towards the support column;

[0106] Step 2-2: An angle encoder accurately measures the rotation angle of the drive gear of the mobile house with a beam and support column connection structure in real time. And it is transmitted to the Central Processing Unit (CPU), which then uses the formula... Calculate the distance the toothed column moves. ,in The number of teeth on the drive gear. The pitch of the tooth spur (unit: m, i.e., the distance between corresponding points of two adjacent teeth on the tooth spur) is... When the preset docking distance is reached (e.g., L=0.1m), the locking stage of step 3 is entered.

[0107] Step 3: After docking, proceed to the locking phase for controlling the connection structure of the mobile home;

[0108] In a preferred but non-limiting embodiment of the present invention, step 3 specifically includes:

[0109] First, strain sensors and torque sensors respectively collect stress values ​​in real time at the connection nodes of the mobile house, which has a beam-support column connection structure. With output torque And it is transmitted to the central processing unit (CPU);

[0110] Next, the central processing unit (CPU) uses the formula Calculate the current output torque ,in This represents the current output torque of the drive gear (unit: N·m). This is the reference rotation angle for driving the gear. The rotation angle of the driving gear. This is the torque adjustment coefficient. This is the torque adjustment coefficient for angle deviation. The unit is N·m / rad. This is the torque deviation adjustment coefficient. The coefficient is dimensionless. This provides the basic torque for driving the gears.

[0111] Then when < When the minimum safe stress is reached, it is determined that the arc-shaped locking block is not fully engaged. The central processing unit (CPU) instructs the servo motor to increase torque, driving the gear to rotate in the forward direction until... achieve ;

[0112] when > When the maximum safe stress is reached, the component is determined to be overloaded. The central processing unit (CPU) controls the servo motor to reduce torque and drives the gears to adjust in the opposite direction until... Falling back to ;

[0113] when ∈[ , At this time, the central processing unit (CPU) maintains the current output torque to keep the connection node stable.

[0114] in addition, That is, the angle at which the arc-shaped locking block is fully engaged in the damping groove; This refers to the rotation angle of the drive gear. Reference rotation angle with the drive gear When a unit angular deviation occurs, the torque adjustment coefficient required by the servo motor to compensate for the deviation reflects the linear correlation between the angular deviation and torque compensation. Its value is determined through mechanical experiments. It means With base torque When a unit torque deviation is generated, the torque adjustment coefficient required by the servo motor to correct the deviation is reflected by the self-correction gain of the torque deviation. Its value is determined by the servo motor response characteristics, the measurement accuracy of the torque sensor, and the adjustment bandwidth of the closed-loop control system through joint debugging experiments.

[0115] Step 4: After the locking phase, a steady-state monitoring phase is performed to control the mobile home's connection structure.

[0116] In a preferred but non-limiting embodiment of the present invention, step 4 specifically includes:

[0117] Once the lock is established, the central processing unit (CPU) continues to monitor. , , ,like Fluctuations exceeding ±10 MPa The fluctuation is the data collected at the previous moment. Subtract the data collected at the current moment When the difference is obtained, repeat step 3.

[0118] Step 5: When it is time to dismantle the mobile house, proceed to the dismantling stage.

[0119] In a preferred but non-limiting embodiment of the present invention, step 5 specifically includes:

[0120] When dismantling the mobile home, the central processing unit (CPU) controls the servo motor to output reverse torque. =- The drive gear rotates in the opposite direction and the toothed column retracts completely.

[0121] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention without departing from the spirit and scope of the present invention. Any modifications or equivalent substitutions should be covered within the scope of protection of the claims of the present invention.

Claims

1. A control method for a mobile home connection structure with dynamic torque adjustment function, characterized in that, include: Step 1: Initialize the control of the mobile home's connection structure; Step 2: After initialization, proceed with the docking of the mobile home connection structure control; Step 3: After docking, proceed to the locking phase for controlling the connection structure of the mobile home; Step 4: After the locking phase, a steady-state monitoring phase is performed to control the mobile home's connection structure. Step 5: When it is time to dismantle the mobile home, proceed to the dismantling stage; Step 1 also includes: Set minimum safety stress Maximum safe stress The basic torque of the drive gear Torque adjustment coefficient Reference rotation angle with the drive gear ; In step 1, the median of the optimal stress range for the connection node. The calculation method is as follows: First, calculate the minimum required stress based on the load-stress mapping. , The calculation formula is: ； in This represents the total load that the connecting nodes must withstand. The effective contact area between the arc-shaped locking block and the damping groove of the mobile house; Next, the fatigue safety stress based on life-stress matching is calculated. , The calculation formula is: ； in The fatigue limit of the core component of the connection node is determined by material fatigue testing; The fatigue safety factor is determined based on the design service life of the mobile home; Subsequently, the interval median based on the adjusted stability was calculated. , The calculation formula is: ； thus ,in For the MAX function, For the MIN function; The mobile home connection structure includes: Based on the mobile house with a beam and support column connection structure, a stress monitoring module, a torque control module and a central processing unit (CPU) are added, and the stress monitoring module, torque control module and CPU form a control system. The force monitoring module is connected to the central processing unit (CPU), and the torque control module runs on the CPU. The torque control module is used for initializing the control of the mobile home's connecting structure; for docking the control of the mobile home's connecting structure; for locking the control of the mobile home's connecting structure; for steady-state monitoring of the control of the mobile home's connecting structure; and for entering the disassembly stage. The mobile house includes: a support column, which is vertically erected and has a connecting groove; a damping groove, which is arc-shaped and distributed around the periphery of the connecting groove, and is connected to the connecting groove; a roof beam, which is horizontally erected and perpendicular to the support column, and has a sliding groove located to the right of the connecting groove, corresponding to the connecting groove; a drive groove located at the side of the sliding groove, and connected to the sliding groove; a toothed column, which is set in the sliding groove, corresponding to the drive groove, and has a load-bearing body at the end of the toothed column facing the connecting groove; and a drive gear, which is set in the drive groove, meshes with the toothed column, and can drive the toothed column to move back and forth. The mounting mechanism is fitted onto the carrier and includes: a receiving cavity, with the carrier positioned on the right side of the receiving cavity; a mating hole, the lateral distance between the mating hole and the left end face of the mounting mechanism being equal to the lateral distance between the damping groove and the bottom left end face of the connecting groove, the mating hole being located on the left side of the receiving cavity, the mating hole being arc-shaped, the shape of the mating hole conforming to the damping groove, and the mating hole connecting the receiving cavity to the outside; a transmission rod, the transmission rod being located between the mating hole and the receiving cavity, the transmission rod being inclined, one end of the transmission rod being movably connected to the side wall of the receiving cavity; and an arc-shaped locking block, the arc-shaped locking block being slidably connected to the other end of the transmission rod, the arc-shaped locking block being located in the mating hole and the receiving cavity, the shape of the arc-shaped locking block conforming to the damping groove.

2. The control method for the mobile home connection structure with dynamic torque adjustment function according to claim 1, characterized in that, Step 1 specifically includes: After the control system is powered on, the central processing unit (CPU) sends an initialization command to the servo motor. The servo motor drives the drive gear to rotate in the opposite direction to the initial position, and the angle encoder collects the initial angle when the drive gear rotates in the opposite direction to the initial position. And transmit it to the central processing unit (CPU), the CPU will then transmit the initial angle. The data is transmitted to the connected display screen for display.

3. The control method for the mobile home connection structure with dynamic torque adjustment function according to claim 2, characterized in that, Step 2 specifically includes: Step 2-1: When the installation of the mobile home begins, the central processing unit (CPU) controls the servo motor to output the basic torque to the drive gear. The drive gear rotates in the forward direction, and the traction gear column drives the installation mechanism to move towards the support column; Step 2-2: An angle encoder measures the rotation angle of the drive gear of the mobile house in real time. And it is transmitted to the Central Processing Unit (CPU), which then uses the formula... Calculate the distance the toothed column moves. ,in The number of teeth on the drive gear. For the tooth pitch of the tooth spur, when When the preset docking distance is reached, the locking phase begins.

4. The control method for the mobile home connection structure with dynamic torque adjustment function according to claim 3, characterized in that, Step 3 specifically includes: First, strain sensors and torque sensors respectively collect the stress values ​​of the connection nodes of the mobile house in real time. With output torque And it is transmitted to the central processing unit (CPU); Next, the central processing unit (CPU) uses the formula Calculate the current output torque ,in This represents the current output torque of the drive gear. This is the reference rotation angle for driving the gear. The rotation angle of the driving gear. This is the torque adjustment coefficient. This is the torque adjustment coefficient for angle deviation. This is the torque deviation adjustment coefficient. This provides the basic torque for driving the gears. Then when < If the arc-shaped locking block is not properly engaged, the central processing unit (CPU) instructs the servo motor to increase torque, driving the gear to rotate in the forward direction until... achieve ; when > When an overload is detected, the central processing unit (CPU) controls the servo motor to reduce torque and drives the gears to reverse the adjustment until... Falling back to ; when ∈[ , At this time, the central processing unit (CPU) maintains the current output torque.

5. The control method for the mobile home connection structure with dynamic torque adjustment function according to claim 4, characterized in that, Step 4 specifically includes: Once the lock is established, the central processing unit (CPU) continues to monitor. , , ,like If the fluctuation exceeds ±10MPa, repeat step 3.

6. The control method for the mobile home connection structure with dynamic torque adjustment function according to claim 5, characterized in that, Step 5 specifically includes: When dismantling the mobile home, the central processing unit (CPU) controls the servo motor to output reverse torque. =- The drive gear rotates in the opposite direction and the toothed column retracts completely.

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