An inner support structure with stress monitoring compensation and a method of operation thereof

Abstract

The application relates to the technical field of structural engineering, in particular to an internal support structure with stress monitoring compensation and a working method thereof, which comprises a steel pipe internal support joint, a fixed joint mechanism is arranged on the left surface of the steel pipe internal support joint, and a quick mounting mechanism is arranged on the right surface of the steel pipe internal support joint. Through the cooperation of the fixed joint mechanism and the quick mounting mechanism, the quick mounting mechanism realizes quick butt joint, and the fixed joint mechanism quickly completes fixing during installation, so that the installation efficiency is greatly improved, the installation process is simplified, the stability is improved, the fixed joint mechanism is reliably fixed, the quick mounting mechanism provides fastening action, the structural stability is synergistically enhanced, the safety performance is improved, safety accidents are reduced, the components are conveniently disassembled and replaced, the maintenance time is shortened, the cost is reduced, component wear is reduced, the service life is prolonged, in addition, the fixed joint mechanism and the quick mounting mechanism can adapt to different working conditions, are flexibly connected with various components, have strong compatibility and high universality.

Description

Technical Field

[0001] This invention relates to the field of structural engineering technology, and in particular to an internal support structure with stress monitoring and compensation and its working method. Background Technology

[0002] Stress monitoring and compensation, also known as a stress servo adaptive support system, is a support system that combines modern mechatronics automatic control technology, computer information processing technology, and visual monitoring systems to continuously monitor the axial force of the support around the clock. Based on the parameter values ​​measured by high-precision sensors, it automatically or manually compensates for the axial force of the support in a timely manner to control the deformation of the foundation pit. Using an adaptive support system, real-time monitoring and control of the axial force of the steel support is achieved, solving the stringent deformation requirements and technical difficulties that conventional construction methods cannot control. This ensures that the project remains under control and predictable conditions, resulting in significant social, economic, and environmental benefits. Therefore, there is a particular need for an internal support structure and its working method that features stress monitoring and compensation.

[0003] Existing internal support structures with stress monitoring and compensation functions have many defects. In terms of axial force compensation, they use hydraulic cylinders as actuators. However, it is difficult to accurately control the slight changes in the extension and contraction of hydraulic cylinders, which makes it difficult to guarantee the accuracy of the compensation displacement. Moreover, this structure usually uses only a single compensation hydraulic cylinder, with its connection point located in the middle of the steel pipe end face. This cannot adapt to the stress differences in all directions of the steel pipe under actual working conditions, and cannot achieve targeted compensation of axial force. In addition, when there is unilateral settlement or inconsistent settlement height on both sides of the foundation pit, the height of the two ends of the steel pipe internal support becomes unbalanced, the main body tilts, and the connecting joints generate unilateral stress or even cracks, which seriously affects the stability of the support. At the same time, traditional internal support structures rely on fixed joints for connection and fixation, which is difficult to adapt to steel pipes of different sizes, has poor versatility, and lacks a quick installation mechanism when installing with other components, resulting in low efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide an internal support structure with stress monitoring and compensation and its working method, in order to solve the many defects of existing internal support structures with stress monitoring and compensation functions mentioned in the background art. In terms of axial force compensation, it uses a hydraulic cylinder as the actuator. However, it is difficult to accurately control the slight changes in the extension and contraction of the hydraulic cylinder due to the hydraulic pressure, which makes it difficult to guarantee the accuracy of the compensation displacement. Moreover, this structure usually only uses a single compensation hydraulic cylinder, and its connection point is located in the middle of the end face of the steel pipe. It cannot adapt to the stress differences in all directions of the steel pipe under actual working conditions, and cannot achieve targeted compensation of axial force. In addition, when there is unilateral settlement or inconsistent settlement height on both sides of the foundation pit, the height of the two ends of the internal support of the steel pipe is unbalanced, the main body tilts, and the connecting joint generates unilateral stress or even cracks, which seriously affects the stability of the support. At the same time, traditional internal support structures rely on fixed joints for connection and fixation, which is difficult to adapt to steel pipes of different sizes, has poor versatility, and lacks a quick installation mechanism when installing with other components, resulting in low efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an internal support structure with stress monitoring and compensation and its working method, comprising a steel pipe internal support section, a fixed section mechanism provided on the left side surface of the steel pipe internal support section, a waler provided on one side surface of the fixed section mechanism, a pile fixedly connected to the lower surface of the waler, a quick installation mechanism provided on the right side surface of the steel pipe internal support section, an axial force sensor fixedly connected to the outer side surface of the steel pipe internal support section, a main body outer sleeve provided on one side surface of the quick installation mechanism, a telescopic rod movably connected to one side surface of the main body outer sleeve, a ball screw fixedly connected to the inner side surface of the main body outer sleeve, a fixed plate fixedly connected to one side surface of the ball screw, and a bearing seat fixedly connected to one side surface of the ball screw. A servo motor is fixedly connected to one side of the surface of the servo motor. A reducer is fixedly connected to one side of the reducer. A gear shaft is fixedly connected to one side of the gear shaft. A drive gear is meshed with one side of the drive gear. A ball socket is fixedly connected to one side of the telescopic rod. Mounting plate a is fixedly connected to one side of the ball socket. Mounting plate b is fixedly connected to one side of mounting plate a. A guide rail is fixedly connected to one side of the mounting plate a. A guide wheel is fixedly connected to one side of the guide rail. Ear plate a is fixedly connected to one side of mounting plate a. Ear plate b is fixedly connected to one side of mounting plate b. A pin is used to connect ear plates a and b. A mounting bracket is fixedly connected to one side of mounting plate b.

[0006] The fixed section mechanism includes a base, a micro motor, a bevel gear, a rotating shaft, a slider, a slide rail, a connecting plate, a connecting frame, a column, a support plate, a clamp, and a rotating shaft. A base is fixedly connected to one side surface of the waler. A micro motor is fixedly connected to one side surface of the base. A bevel gear is fixedly connected to one side surface of the micro motor. A rotating shaft is fixedly connected to one side surface of the bevel gear. A slider is fixedly connected to the outer surface of the rotating shaft. A slide rail is fixedly connected to one side surface of the slider. A connecting plate is fixedly connected to one side surface of the slider. A connecting frame is fixedly connected to one side surface of the connecting plate. A column is fixedly connected to one side surface of the connecting frame. A support plate is fixedly connected to one side surface of the connecting frame. A clamp is fixedly connected to one side surface of the support plate. A rotating shaft is fixedly connected to one side surface of the clamp.

[0007] Preferably, four sets of axial force sensors are symmetrically arranged around the central axis of the inner support section of the steel pipe, and the rotating shaft forms a rotating structure with a micro motor through a bevel gear.

[0008] Preferably, the inner wall dimension of the bevel gear matches the outer wall dimension of the rotating shaft, and the slider is movably connected to the slide rail via the rotating shaft.

[0009] Preferably, the inner wall size of the slider matches the outer wall size of the slide rail, and two sets of support plates are symmetrically arranged around the central axis of the column.

[0010] Preferably, the clamps are provided with anti-slip pads, and five sets of clamps are symmetrically arranged around the central axis of the column.

[0011] Preferably, the quick installation mechanism includes a wedge, clamps, a connector, a first spring, a connecting flange, a locking pin base, a locking groove, a second spring, and a locking pin. A wedge is fixedly connected to one side surface of the inner support section of the steel pipe, a clamp is fixedly connected to one side surface of the wedge, a connector is fixedly connected to one side surface of the clamp, a first spring is fixedly connected to one side surface of the connector, a connecting flange is fixedly connected to one side surface of the first spring, a locking pin base is fixedly connected to one side surface of the connecting flange, a locking groove is provided on one side surface of the locking pin base, a second spring is fixedly connected to the inner surface of the locking pin base, and a locking pin is fixedly connected to one side surface of the locking pin base.

[0012] Preferably, one side surface of the inner support section of the steel pipe is provided with a connecting block that engages with the slot, and four sets of wedges are symmetrically arranged around the central axis of the inner support section of the steel pipe.

[0013] Preferably, the inner support section of the steel pipe is connected to the clamp via a wedge block, and two sets of the first spring are symmetrically arranged around the central axis of the clamp.

[0014] Preferably, the clamps are arranged symmetrically in four groups around the central axis of the connecting flange, and one side surface of the locking pin is provided with a locking groove for the insert block.

[0015] A method for operating an internally supported structure with stress monitoring and compensation further includes the following steps:

[0016] Step 1: Fix the inner support device in the designated position, place the steel pipe in the area where the clamp can operate, ensure the position is appropriate, start the micro motor, output rotational force to drive the bevel gear, the bevel gear meshes with the rotating shaft, causing it to rotate, the rotating shaft drives the slider to move linearly along the slide rail, the slider drives the connecting plate, the connecting plate drives the connecting frame, the connecting frame drives the column and support plate, so that the clamp is close to the steel pipe to complete the fixation.

[0017] Preferably, the quick installation mechanism is used to bring the component to be connected with the corresponding structure close to the inner support section of the steel pipe, so that the installation position is roughly aligned. The clamp of the connecting component on one side of the connecting flange is pushed so that it contacts the wedge. As the components approach, the wedge is squeezed, which drives the clamp to move. The clamp compresses the first spring through the connecting piece and closes, clamping the wedge. When the clamp moves, it pushes the locking pin to retract into the locking pin base, compressing the second spring. When the insert block of the inner support section of the steel pipe is inserted into the locking groove of the locking pin base, the locking pin pops out under the elastic force of the second spring. Its insert locking groove engages with the locking groove to fix the insert block, realizing quick positioning and initial locking.

[0018] Preferably, the equipment is started and preparation work is carried out. The axial force of the steel pipe support is monitored by the axial stress monitoring system. Four axial force sensors are installed on the upper, lower, left and right outer walls of the steel pipe to monitor the axial stress and transmit the signal to the DCS control system. The DCS control system controls the extension and retraction of the corresponding telescopic compensation device in the axial force compensation section according to the received axial force signal and the stress magnitude. The device ends are connected by ball joints and work independently. The upper and lower devices are controlled by the upper and lower axial force sensors respectively to achieve accurate compensation.

[0019] Preferably, when settlement occurs on one side of the foundation pit, the guide wheel between ear plate a and ear plate b slides on the guide rail, and mounting plates a and b can move up and down to achieve settlement compensation self-adaptation, prevent the two ends of the steel pipe internal support from tilting, and ensure the stability of the support. When the settlement is within a certain range, the laser beam can pass through the hole in ear plate b. When it exceeds a certain distance, the laser beam is blocked by ear plate b, the monitoring signal changes, and the DCS control system controls the alarm system to issue an alarm.

[0020] Compared with the prior art, the beneficial effects of the present invention are:

[0021] 1. Through the setting of the fixed section mechanism, during use, the components that need to be fixedly connected, such as steel pipes, are placed in a suitable position so that they are within the working range of the clamp. The power supply of the micro motor is turned on to provide power for subsequent work. The micro motor starts and outputs rotational power, driving the bevel gear fixedly connected to it to rotate. The rotation of the bevel gear transmits power to the rotating shaft through meshing, causing the rotating shaft to start rotating. When the rotating shaft rotates, since its outer surface is fixedly connected to the slider, the slider moves linearly along the slide rail under the drive of the rotating shaft. The movement of the slider will drive the connecting plate connected to it to move synchronously. The movement of the connecting plate will drive the connecting frame to move, and the connecting frame will in turn drive the column and support plate. The movement brings the chuck closer to the component that needs to be fixed. Once the chuck contacts the component, it applies clamping force as it continues to move, thus fixing the component. During this process, the rotating shaft allows the chuck to flexibly adjust its position and angle within a certain range, better adapting to components of different shapes and positions and enhancing the mechanism's adaptability to complex working conditions. Once the chuck has firmly clamped the component, the micro motor stops working, and the component is stably fixed in the corresponding position. This improves the adaptability to components of different shapes and positions, ensures the firmness of the component's fixation, and effectively prevents the component from loosening or shifting when subjected to external forces, ensuring the stability and safety of the working process.

[0022] 2. With the quick-installation mechanism, during use, the components to be connected with the corresponding structure are brought close to the inner support section of the steel pipe, so that their installation positions are roughly aligned. At this time, each component is in its initial state, and neither the first nor the second spring is compressed or stretched to its limit. The clamp of the connecting component on one side of the connecting flange is pushed so that it contacts the wedge. As the components move closer, the wedge is squeezed, which drives the clamp to move. The clamp compresses the first spring through the connector, and at the same time, the clamp begins to close, applying clamping force to the wedge to enhance the stability of the connection. While the clamp is moving, it pushes the locking pin to retract into the locking pin base, compressing the second spring. When the insert block on one side of the inner support section of the steel pipe is inserted into the locking groove on one side of the locking pin base, the locking pin pops out under the elastic force of the second spring, so that the locking groove on one side of the locking pin engages with the locking groove to fix the insert block, achieving quick positioning and initial locking. At this time, the wedge is clamped by the clamp, and the locking groove of the insert on the pin engages with the slot. The first spring and the second spring provide a certain preload force, so that the inner support section of the steel pipe is firmly connected to the part to be connected, completing the rapid installation. This effectively shortens the time for component installation and disassembly, and greatly improves work efficiency. Attached Figure Description

[0023] Figure 1 This is a side view of the structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the component structure of the settlement adaptation joint system of the present invention;

[0025] Figure 3 This is a schematic diagram of the telescopic compensation device of the present invention;

[0026] Figure 4 This is a schematic diagram of the connecting steel pipe inner support section of the quick installation mechanism of the present invention;

[0027] Figure 5 This is a schematic diagram of the quick installation mechanism of the present invention;

[0028] Figure 6 This is a schematic diagram of the pre-clamping structure of the fixed section mechanism of the present invention;

[0029] Figure 7 This is a schematic diagram of the fixed section mechanism of the present invention;

[0030] Figure 8 This is a schematic diagram of the operation power of the fixed section mechanism of the present invention.

[0031] In the diagram: 1. Inner support section of steel pipe; 2. Fixed section mechanism; 201. Base; 202. Micro motor; 203. Bevel gear; 204. Rotating shaft; 205. Slider; 206. Slide rail; 207. Connecting plate; 208. Connecting frame; 209. Column; 210. Support plate; 211. Clamp; 212. Rotating shaft; 3. Waler; 4. Pile; 5. Quick installation mechanism; 501. Wedge; 502. Clamp; 503. Connecting piece; 504. First spring; 505. Connecting flange; 506. 507. Locking pin base; 508. Locking slot; 509. Second spring; 5000. Locking pin; 6. Axial force sensor; 7. Main body outer sleeve; 8. Telescopic rod; 9. Ball screw; 10. Fixing plate; 11. Bearing seat; 12. Servo motor; 13. Reducer; 14. Gear shaft; 15. Driving gear; 16. Driven gear; 17. Ball socket; 18. Mounting plate a; 19. Mounting plate b; 20. Guide rail; 21. Guide wheel; 22. Ear plate a; 23. Ear plate b; 24. Pin shaft; 25. Mounting bracket. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Example

[0033] Please see Figure 1-8This invention provides a technical solution: an internal support structure with stress monitoring and compensation and its working method, comprising a steel pipe inner support section 1, a fixing mechanism 2 on the left side surface of the steel pipe inner support section 1, a waler 3 on one side surface of the fixing mechanism 2, a pile 4 fixedly connected to the lower surface of the waler 3, a quick installation mechanism 5 on the right side surface of the steel pipe inner support section 1, an axial force sensor 6 fixedly connected to the outer side surface of the steel pipe inner support section 1, a main body outer sleeve 7 on one side surface of the quick installation mechanism 5, a telescopic rod 8 movably connected to one side surface of the main body outer sleeve 7, a ball screw 9 fixedly connected to the inner side surface of the main body outer sleeve 7, a fixing plate 10 fixedly connected to one side surface of the ball screw 9, a bearing seat 11 fixedly connected to one side surface of the ball screw 9, a servo motor 12 fixedly connected to one side surface of the main body outer sleeve 7, and a reducer 13 fixedly connected to one side surface of the servo motor 12. A gear shaft 14 is fixedly connected to one side surface of the telescopic rod 8. A driving gear 15 is fixedly connected to one side surface of the gear shaft 14. A driven gear 16 is meshed with one side surface of the driving gear 15. A ball socket 17 is fixedly connected to one side surface of the telescopic rod 8. An a mounting plate 18 is fixedly connected to one side surface of the ball socket 17. A b mounting plate 19 is fixedly connected to one side surface of the a mounting plate 18. A guide rail 20 is fixedly connected to one side surface of the a mounting plate 18. A guide wheel 21 is fixedly connected to one side surface of the guide rail 20. An a ear plate 22 is fixedly connected to one side surface of the a mounting plate 18. A b ear plate 23 is fixedly connected to one side surface of the b mounting plate 19. A pin 24 is used to connect the a ear plate 22 and the b ear plate 23. A mounting bracket 25 is fixedly connected to one side surface of the b mounting plate 19.

[0034] The fixed section mechanism 2 includes a base 201, a micro motor 202, a bevel gear 203, a rotating shaft 204, a slider 205, a slide rail 206, a connecting plate 207, a connecting frame 208, a column 209, a support plate 210, a clamp 211, and a rotating shaft 212. The base 201 is fixedly connected to one side surface of the waler 3. The micro motor 202 is fixedly connected to one side surface of the base 201. The bevel gear 203 is fixedly connected to one side surface of the micro motor 202. The rotating shaft 204 is fixedly connected to one side surface of the bevel gear 203. The slider 205 is fixedly connected to the outer surface of the rotating shaft 204. The slide rail 206 is fixedly connected to one side surface of the slider 205. A connecting plate 207 is fixedly connected to one side surface of the slider 205. A connecting plate 207 has a connecting frame 208 fixedly connected to one side surface, a column 209 fixedly connected to one side surface of the connecting frame 208, a support plate 210 fixedly connected to one side surface of the connecting frame 208, a clamp 211 fixedly connected to one side surface of the support plate 210, and a rotating shaft 212 fixedly connected to one side surface of the clamp 211. Through the arrangement of the base 201, micro motor 202, bevel gear 203, rotating shaft 204, slider 205, slide rail 206, connecting plate 207, connecting frame 208, column 209, support plate 210, clamp 211, and rotating shaft 212, during use, components requiring fixed connection, such as steel pipes, are placed in suitable positions, positioning them within the working area of ​​the clamp 211. Within the operating range, the power supply to the micro motor 202 is turned on to provide power for subsequent work. The micro motor 202 starts and outputs rotational power, driving the bevel gear 203 fixedly connected to it to rotate. The rotation of the bevel gear 203 transmits power to the rotating shaft 204 through meshing, causing the rotating shaft 204 to start rotating. When the rotating shaft 204 rotates, since its outer surface is fixedly connected to the slider 205, the slider 205 moves linearly along the slide rail 206 under the drive of the rotating shaft 204. The movement of the slider 205 will drive the connecting plate 207 connected to it to move synchronously. The movement of the connecting plate 207 drives the connecting frame 208 to move, and the connecting frame 208 in turn drives the column 209 and the support plate 210 to move, so that the chuck... When the chuck 211 approaches the component that needs to be fixed, it applies clamping force to the component as it continues to move, thus fixing the component. During this process, the rotating shaft 212 allows the chuck 211 to flexibly adjust its position and angle within a certain range, better adapting to components of different shapes and positions, and enhancing the mechanism's adaptability to complex working conditions. Once the chuck 211 has firmly clamped the component, the micro motor 202 can stop working. At this point, the component is stably fixed in the corresponding position, thereby improving the adaptability to components of different shapes and positions, ensuring the firmness of the component's fixation, and effectively preventing the component from loosening or shifting when subjected to external forces, ensuring the stability and safety of the working process.

[0035] Furthermore, four sets of axial force sensors 6 are symmetrically arranged around the central axis of the inner support section 1 of the steel pipe. The rotating shaft 204 forms a rotating structure with the micro motor 202 through the bevel gear 203. Through the arrangement of the bevel gear 203, the power of the micro motor 202 can be efficiently transmitted to the rotating shaft 204 during use. The bevel gear 203 transmission can change the direction of power transmission, making the installation position of the motor more flexible. At the same time, it has high transmission efficiency and load-bearing capacity, ensuring that the fixed section mechanism 2 has stable power output during operation, and ensuring that the clamp 211 can reliably perform clamping and releasing actions.

[0036] Furthermore, the inner wall dimensions of the bevel gear 203 match the outer wall dimensions of the rotating shaft 204. The slider 205 is movably connected to the slide rail 206 via the rotating shaft 204. With the setting of the rotating shaft 204, the inner wall dimensions of the bevel gear 203 and the outer wall dimensions of the rotating shaft 204 match during use, ensuring a tight fit between the two and reducing the gap during transmission. During power transmission, it can effectively avoid power loss caused by the gap, enabling the bevel gear 203 to stably transmit the power of the micro motor 202 to the rotating shaft 204, ensuring the smooth operation of the fixed section mechanism 2.

[0037] Furthermore, the inner wall dimensions of the slider 205 match the outer wall dimensions of the slide rail 206. The support plate 210 is symmetrically arranged with two sets of support plates around the central axis of the column 209. Through the arrangement of the slider 205 and the slide rail 206, the slider 205 has higher stability when moving on the slide rail 206 during use. During the process of the micro motor 202 driving the slider 205 to move, due to the close cooperation between the two, the shaking and deviation of the slider 205 during the movement can be effectively reduced, ensuring that the movement path of the chuck 211 when clamping the component is accurate, thereby ensuring the accuracy of the action of the chuck 211.

[0038] Furthermore, the chuck 211 is provided with anti-slip pads. Five sets of chucks 211 are symmetrically arranged around the central axis of the column 209. By setting the chucks 211, the anti-slip pads on the chucks 211 greatly increase the friction between the chucks 211 and the fixed part during use. When the chucks 211 clamp the part, the anti-slip pads can effectively prevent the part from sliding inside the chucks 211, ensuring that the part maintains a stable position during the fixing process.

[0039] Furthermore, the quick-installation mechanism 5 includes a wedge 501, a clamp 502, a connector 503, a first spring 504, a connecting flange 505, a locking pin base 506, a locking groove 507, a second spring 508, and a locking pin 509. A wedge 501 is fixedly connected to one side surface of the inner support section 1 of the steel pipe. A clamp 502 is fixedly connected to one side surface of the wedge 501. A connector 503 is fixedly connected to one side surface of the clamp 502. A first spring 504 is fixedly connected to one side surface of the connector 503. A connecting flange 505 is fixedly connected to one side surface of the first spring 504. A connecting flange 505 is fixedly connected to one side surface of the connecting flange 505. A locking pin base 506 is fixedly connected. A locking groove 507 is provided on one side surface of the locking pin base 506. A second spring 508 is fixedly connected to the inner surface of the locking pin base 506, and a locking pin 509 is fixedly connected to one side surface of the locking pin base 506. Through the arrangement of wedge 501, clamp 502, connector 503, first spring 504, connecting flange 505, locking pin base 506, locking groove 507, second spring 508, and locking pin 509, during use, the components to be connected with corresponding structures are brought close to the inner support section 1 of the steel pipe, so that their installation positions are roughly aligned. At this time, all components are in their initial state. Neither spring 504 nor the second spring 508 is compressed or stretched to its limit. The clamp 502 on one side of the connecting flange 505 is pushed, bringing it into contact with the wedge 501. As the components move closer, the wedge 501 is squeezed, causing the clamp 502 to move. The clamp 502 compresses the first spring 504 through the connector 503. Simultaneously, the clamp 502 begins to close, applying clamping force to the wedge 501 to enhance connection stability. While the clamp 502 moves, it pushes the locking pin 509 to retract into the locking pin base 506, compressing the second spring 508. When the insert block on one side of the inner support section 1 of the steel pipe is inserted... The slot 507 on one side of the locking pin base 506 causes the locking pin 509 to pop out under the elastic force of the second spring 508, so that the insertion block locking groove on one side surface of the locking pin 509 and the slot 507 simultaneously engage and fix the insertion block, achieving quick positioning and initial locking. At this time, the wedge block 501 is clamped by the clamp 502, and the insertion block locking groove on the locking pin 509 engages with the slot 507. The first spring 504 and the second spring 508 respectively provide a certain preload force, so that the inner support section 1 of the steel pipe is firmly connected to the part to be connected, completing the quick installation, thereby effectively shortening the time for component installation and disassembly and greatly improving work efficiency.

[0040] Furthermore, one side surface of the inner support section 1 of the steel pipe is provided with a connecting block that engages with the slot 507. Four sets of wedge blocks 501 are symmetrically arranged around the central axis of the inner support section 1 of the steel pipe. With the inner support section 1 of the steel pipe, the connecting block on one side of the inner support section 1 engages with the slot 507 during use, which can achieve precise positioning during installation, ensuring that the parts to be connected are accurately aligned with the inner support section 1 of the steel pipe. This avoids connection instability or uneven stress on the structure caused by installation position deviation, and improves the installation accuracy and reliability of the entire structure.

[0041] Furthermore, the inner support section 1 of the steel pipe is engaged with the clamp 502 via a wedge 501. Two sets of first springs 504 are symmetrically arranged around the central axis of the clamp 502. Through the arrangement of the wedge 501 and the clamp 502, the inner support section 1 of the steel pipe is engaged with the clamp 502 via the wedge 501 during use. This connection method makes the installation process simpler and faster. During installation, simply align the wedge 501 with the clamp 502 and apply a certain external force to achieve quick engagement between the two. No complicated operating steps or additional connecting parts 503 are required, which greatly shortens the installation time and improves work efficiency.

[0042] Furthermore, four sets of clamps 502 are symmetrically arranged around the central axis of the connecting flange 505. A locking groove for the insert block is provided on one side surface of the locking pin 509. With the clamps 502 arranged in four sets symmetrically around the central axis of the connecting flange 505 during use, this layout can provide a more uniform distribution of clamping force. During use, the four sets of clamps 502 simultaneously apply clamping force to the wedge block 501 or other clamped objects. Compared with a smaller number of clamps 502, it can better resist external loads and vibrations and avoid loosening of the connection due to insufficient local clamping force.

[0043] Furthermore, a rubber pad is provided at the end of the locking pin 509. The locking pin 509 forms a telescopic structure with the locking pin base 506 through the second spring 508. With the setting of the locking pin 509, during use, the locking pin 509 forms a telescopic structure with the locking pin base 506 through the second spring 508, so that the locking pin 509 has an automatic telescopic function. During the installation process, when the locking pin 509 comes into contact with other parts, it is subjected to external force, and the locking pin 509 can compress the second spring 508 and automatically retract into the locking pin base 506. When the external force disappears, the locking pin 509 will automatically pop out under the elastic force of the second spring 508, realizing the automatic positioning and locking of the locking pin 509, improving the convenience and efficiency of installation. Example

[0044] A method for operating an internal support structure with stress monitoring and compensation, using an internal support structure with stress monitoring and compensation as described in Example 1, further includes the following steps:

[0045] Step 1: Fix the inner support device in the designated position, place the steel pipe in the area where the clamp 211 can operate, ensure the position is appropriate, start the micro motor 202, output rotational force to drive the bevel gear 203, the bevel gear 203 meshes with the rotating shaft 204, causing it to rotate, the rotating shaft 204 drives the slider 205 to move linearly along the slide rail 206, the slider 205 drives the connecting plate 207, the connecting plate 207 drives the connecting frame 208, the connecting frame 208 drives the column 209 and the support plate 210, so that the clamp 211 is close to the steel pipe to complete the fixation.

[0046] Step 2: Using the quick installation mechanism 5, bring the component to be connected with the corresponding structure close to the inner support section 1 of the steel pipe, roughly aligning the installation positions. Push the clamp 502 of the connecting component on one side of the connecting flange 505 so that it contacts the wedge block 501. As the components approach, the wedge block 501 is squeezed, causing the clamp 502 to move. The clamp 502 compresses the first spring 504 through the connecting piece 503 and closes, clamping the wedge block 501. When the clamp 502 moves, it pushes the locking pin 509 to retract into the locking pin base 506, compressing the second spring 508. When the insert of the inner support section 1 of the steel pipe is inserted into the slot 507 of the locking pin base 506, the locking pin 509 pops out under the elastic force of the second spring 508. Its insert locking groove engages with the slot 507 to fix the insert, achieving quick positioning and initial locking.

[0047] Step 3: Start the equipment preparation work. The axial force of the steel pipe support is monitored by the axial stress monitoring system. Four axial force sensors 6 are installed on the upper, lower, left and right outer walls of the steel pipe to monitor the axial stress and transmit the signal to the DCS control system. The DCS control system controls the extension and retraction of the corresponding telescopic compensation device in the axial force compensation section according to the received axial force signal and the stress magnitude. The device ends are connected by ball joints and work independently. The upper and lower devices are controlled by the upper and lower axial force sensors 6 respectively to achieve precise compensation.

[0048] Step 4: When settlement occurs on one side of the foundation pit, the guide wheel 21 between ear plate 22 (a) and ear plate 23 (b) slides on the guide rail 20, and mounting plates 18 (a) and 19 (b) can move up and down to achieve settlement compensation self-adaptation, prevent the two ends of the steel pipe internal support from tilting, and ensure the stability of the support. If the settlement is within a certain range, the laser beam can pass through the hole in ear plate 23 (b). When it exceeds a certain distance, the laser beam is blocked by ear plate 23 (b), the monitoring signal changes, and the DCS control system controls the alarm system to issue an alarm.

[0049] Working Principle: This internal support structure with stress monitoring and compensation and its working method, through the setting of the fixed joint mechanism 2, allows the components to be fixedly connected, such as steel pipes, to be placed in a suitable position during use, placing them within the working range of the clamp 211. The power supply to the micro motor 202 is then turned on to provide power for subsequent work. The micro motor 202 starts, outputting rotational power, which drives the bevel gear 203 fixedly connected to it to rotate. The rotation of the bevel gear 203 transmits power to the rotating shaft 204 through meshing, causing the rotating shaft 204 to start rotating. When the rotating shaft 204 rotates, because its outer surface is fixedly connected to the slider 205, the slider 205 moves linearly along the slide rail 206 under the drive of the rotating shaft 204. The movement of the slider 205 will... The connecting plate 207 moves synchronously with the component, which in turn moves the connecting frame 208. The connecting frame 208 then moves the column 209 and the support plate 210, bringing the clamp 211 closer to the component to be fixed. Once the clamp 211 contacts the component, it applies a clamping force to the component as it continues to move, thus fixing it. During this process, the rotating shaft 212 allows the clamp 211 to flexibly adjust its position and angle within a certain range, better adapting to components of different shapes and positions, and enhancing the mechanism's adaptability to complex working conditions. After the clamp 211 has firmly clamped the component, the micro motor 202 stops working, and the component is stably fixed in the corresponding position, thereby improving the stability of components of different shapes and positions. The adaptability of the components ensures the firmness of the fixed components. When subjected to external forces, it can effectively prevent the components from loosening or shifting, ensuring the stability and safety of the working process. Through the setting of the quick installation mechanism 5, during use, the components to be connected with the corresponding structure are brought close to the inner support section 1 of the steel pipe, so that the installation positions of the two are roughly aligned. At this time, each component is in the initial state, and neither the first spring 504 nor the second spring 508 is compressed or stretched to its limit. Push the connecting component clamp 502 on one side of the connecting flange 505 to make it contact the wedge block 501. As the components get closer, the wedge block 501 is squeezed, which drives the clamp 502 to move. The clamp 502 compresses the first spring 504 through the connecting member 503. At the same time, the clamp 502 begins to close, clamping the wedge block 501. 01. Applying clamping force enhances the stability of the connection. Simultaneously with the action of clamp 502, the locking pin 509 is pushed into the locking pin base 506, compressing the second spring 508. When the insert block on one side of the inner support section 1 of the steel pipe inserts into the slot 507 on one side of the locking pin base 506, the locking pin 509 pops out under the elastic force of the second spring 508. This causes the locking groove on one side of the locking pin 509 to simultaneously engage with the slot 507, securing the insert block and achieving rapid positioning and initial locking. At this time, the wedge block 501 is clamped by clamp 502, and the locking groove on the locking pin 509 engages with the slot 507. The first spring 504 and the second spring 508 respectively provide a certain preload, ensuring a secure connection between the inner support section 1 of the steel pipe and the component to be connected.This device enables rapid installation, effectively shortening the time for component installation and disassembly, and significantly improving work efficiency. Through the coordinated action of the fixed section mechanism 2 and the quick-installation mechanism 5, the quick-installation mechanism 5 achieves rapid docking during installation, while the fixed section mechanism 2 quickly completes fixation. The combined effect greatly improves installation efficiency and simplifies the installation process. In terms of stability, the fixed section mechanism 2 provides reliable fixation, while the quick-installation mechanism 5 provides a tightening effect, jointly enhancing structural stability, improving safety performance, and reducing accidents. For maintenance, it facilitates the disassembly and replacement of components, shortening maintenance time, reducing costs, and also reducing component wear and extending service life. Furthermore, these components can adapt to different working conditions, flexibly connect with various components, and have strong compatibility and high versatility. The micro motor 202 is model WL-37RS528, and the servo motor is model YE2-132S-4.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An internal support structure with stress monitoring and compensation, comprising a steel pipe inner support section (1), characterized in that: A fixing mechanism (2) is provided on the left side surface of the inner support section (1) of the steel pipe. A waler (3) is provided on one side surface of the fixing mechanism (2). A pile (4) is fixedly connected to the lower surface of the waler (3). A quick installation mechanism (5) is provided on the right side surface of the inner support section (1) of the steel pipe. An axial force sensor (6) is fixedly connected to the outer side surface of the inner support section (1). A main body outer sleeve (7) is provided on one side surface of the quick installation mechanism (5). A telescopic rod (8) is movably connected to one side surface of the main body outer sleeve (7). A ball screw (9) is fixedly connected to the inner side surface of the main body outer sleeve (7). A fixing plate (10) is fixedly connected to one side surface of the ball screw (9). A bearing seat (11) is fixedly connected to one side surface of the ball screw (9). A servo motor (12) is fixedly connected to one side surface of the main body outer sleeve (7). A reducer (13) is fixedly connected to one side surface of the servo motor (12). A gear shaft (14) is fixedly connected to one side surface of the telescopic rod (8). A drive gear (15) is fixedly connected to one side surface of the gear shaft (14). A driven gear (16) is meshed with one side surface of the drive gear (15). A ball socket (17) is fixedly connected to one side surface of the ball socket (17). An a mounting plate (18) is fixedly connected to one side surface of the a mounting plate (18). A b mounting plate (19) is fixedly connected to one side surface of the a mounting plate (18). A guide rail (20) is fixedly connected to one side surface of the guide rail (20). A guide wheel (21) is connected to one side surface of the guide rail (20). An a ear plate (22) is fixedly connected to one side surface of the a mounting plate (18). A b ear plate (23) is fixedly connected to one side surface of the b mounting plate (19). A pin (24) is connected through the a ear plate (22) and the b ear plate (23). A mounting bracket (25) is fixedly connected to one side surface of the b mounting plate (19). The fixed section mechanism (2) includes a base (201), a micro motor (202), a bevel gear (203), a rotating shaft (204), a slider (205), a slide rail (206), a connecting plate (207), a connecting frame (208), a column (209), a support plate (210), a clamp (211), and a rotating shaft (212). The base (201) is fixedly connected to one side surface of the waler (3), the micro motor (202) is fixedly connected to one side surface of the base (201), the bevel gear (203) is fixedly connected to one side surface of the micro motor (202), and the bevel gear (203) meshes with the rotating shaft (204). A slider (205) is connected to the outer surface of the rotating shaft (204). A slide rail (206) is connected to one side surface of the slider (205). A connecting plate (207) is fixedly connected to one side surface of the slider (205). A connecting frame (208) is fixedly connected to one side surface of the connecting plate (207). A column (209) is fixedly connected to one side surface of the connecting frame (208). A support plate (210) is fixedly connected to one side surface of the connecting frame (208). A chuck (211) is fixedly connected to one side surface of the support plate (210). A rotating shaft (212) is fixedly connected to one side surface of the chuck (211).

2. The internal support structure with stress monitoring and compensation according to claim 1, characterized in that: The axial force sensor (6) is symmetrically arranged in four groups around the central axis of the inner support section (1) of the steel pipe. The rotating shaft (204) forms a rotating structure with the micro motor (202) through the bevel gear (203).

3. The internal support structure with stress monitoring and compensation according to claim 2, characterized in that: The inner wall dimension of the bevel gear (203) matches the outer wall dimension of the rotating shaft (204), and the slider (205) is movably connected to the slide rail (206) through the rotating shaft (204).

4. The internal support structure with stress monitoring and compensation according to claim 3, characterized in that: The inner wall dimension of the slider (205) matches the outer wall dimension of the slide rail (206), and two sets of support plates (210) are symmetrically arranged around the central axis of the column (209).

5. The internal support structure with stress monitoring and compensation according to claim 4, characterized in that: The clamp (211) is provided with an anti-slip pad, and five sets of clamps (211) are symmetrically arranged around the central axis of the column (209).

6. The internal support structure with stress monitoring and compensation according to claim 5, characterized in that: The quick installation mechanism (5) includes a wedge (501), a clamp (502), a connector (503), a first spring (504), a connecting flange (505), a locking pin base (506), a locking groove (507), a second spring (508), and a locking pin (509). A wedge (501) is fixedly connected to one side surface of the inner support section (1) of the steel pipe. A clamp (502) is connected to one side surface of the wedge (501), and a connector (503) is fixedly connected to one side surface of the clamp (502). A first spring (504) is fixedly connected to one side surface of the connector (503), a connecting flange (505) is fixedly connected to one side surface of the first spring (504), a locking pin base (506) is fixedly connected to one side surface of the connecting flange (505), a locking groove (507) is provided on one side surface of the locking pin base (506), a second spring (508) is fixedly connected to the inner side surface of the locking pin base (506), and a locking pin (509) is connected to one side surface of the locking pin base (506).

7. An internal support structure with stress monitoring and compensation according to claim 6, characterized in that: One side surface of the inner support section (1) of the steel pipe is provided with a plug that engages with the slot (507), and four sets of wedges (501) are symmetrically arranged around the central axis of the inner support section (1) of the steel pipe.

8. The internal support structure with stress monitoring and compensation according to claim 7, characterized in that: The inner support section (1) of the steel pipe is engaged with the clamp (502) through a wedge (501), and the first spring (504) is symmetrically arranged in two sets around the central axis of the clamp (502).

9. An internal support structure with stress monitoring and compensation according to claim 8, characterized in that: The clamps (502) are arranged symmetrically in four groups around the central axis of the connecting flange (505), and the locking groove of the insert block is provided on one side surface of the locking pin (509).

10. A method for operating an internal support structure with stress monitoring and compensation, characterized in that: The internal support structure with stress monitoring and compensation as described in claim 9 further includes the following steps: Step 1: Fix the inner support device in the designated position, place the steel pipe in the area where the clamp (211) can operate, ensure the position is appropriate, start the micro motor (202), output rotational force to drive the bevel gear (203), the bevel gear (203) meshes with the rotating shaft (204) to make it rotate, the rotating shaft (204) drives the slider (205) to move linearly along the slide rail (206), the slider (205) drives the connecting plate (207), the connecting plate (207) drives the connecting frame (208), the connecting frame (208) drives the column (209) and the support plate (210) to make the clamp (211) close to the steel pipe to complete the fixation; Step 2: Using the quick installation mechanism (5), bring the component to be connected with the corresponding structure close to the inner support section (1) of the steel pipe, so that the installation position is roughly aligned. Push the clamp (502) of the connecting component on one side of the connecting flange (505) so that it contacts the wedge (501). When the component is close, the wedge (501) is squeezed, which drives the clamp (502) to move. The clamp (502) compresses the first spring (504) through the connector (503) and closes, clamping the wedge (501). When the clamp (502) moves, it pushes the locking pin (509) to retract into the locking pin base (506) and compresses the second spring (508). When the insert of the inner support section (1) of the steel pipe is inserted into the slot (507) of the locking pin base (506), the locking pin (509) pops out under the elastic force of the second spring (508). Its insert locking groove engages with the slot (507) to fix the insert, realizing quick positioning and initial locking. Step 3: Start the equipment preparation work. The axial force of the steel pipe support is monitored by the axial stress monitoring system. Four axial force sensors (6) are installed on the upper, lower and left and right outer walls of the steel pipe to monitor the axial stress and transmit the signal to the DCS control system. The DCS control system controls the extension and retraction of the corresponding telescopic compensation device in the axial force compensation section according to the received axial force signal and the stress magnitude. The device ends are connected by ball joints and work independently. The upper and lower devices are controlled by the upper and lower axial force sensors (6) respectively to achieve accurate compensation. Step 4: When settlement occurs on one side of the foundation pit, the guide wheel (21) between ear plate (22) a and ear plate (23) b slides on the guide rail (20), and mounting plate (18) a and mounting plate (19) b can move up and down to achieve settlement compensation self-adaptation, prevent the two ends of the steel pipe support from tilting, and ensure the stability of the support. If the settlement is within a certain range, the laser beam can pass through the hole of ear plate (23). When it exceeds a certain distance, the laser beam is blocked by ear plate (23), the monitoring signal changes, and the DCS control system controls the alarm system to issue an alarm.

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