Hydraulic slip form machine capable of automatically adjusting posture and construction method

Abstract

The invention discloses a hydraulic slip form machine capable of automatically adjusting postures and a construction method, and belongs to the field of building construction. The sliding formwork machine comprises a lifting system, a door type supporting system, a self-weighing platform system, a suspension operation frame posture balance system and a rail balance weight type water storage tank. Tilt angle sensors are arranged at the two ends of a main cross beam of the door type supporting system, a pressing type sensor of the self-weighing platform system can measure the load of a stacking platform, and a pulling and pressing two-way sensor of the suspension operation frame posture balance system monitors the specific load on an operation platform. The inclination angles of the same ends of the adjacent main cross beams are consistent through the rail counterweight type water storage tank; the position of the suspension frame is adjusted through the telescopic driving mechanism of the suspension operation frame posture balance system, so that the inclination angles of the two ends of the main cross beam tend to be consistent, posture balance and frame body stability of the slip-form machine are achieved, lateral overturning of the slip-form machine is prevented, and safety of the slip-form machine is guaranteed.

Description

Technical Field

[0001] This invention relates to a self-adjustable hydraulic slipform machine and its construction method, belonging to the field of building construction. Background Technology

[0002] Slipform construction, also known as sliding formwork construction, is a construction technique that uses hydraulic equipment to allow formwork to slowly slide upwards while concrete is being poured. In shallow circular silo construction, it enables continuous pouring of the silo wall concrete, reducing the number of construction joints and improving the integrity and waterproofing of the silo wall. Simultaneously, as the formwork slides upwards, processes such as rebar tying and concrete vibration can be carried out concurrently, improving construction efficiency.

[0003] In the construction of existing silos (represented by shallow circular silos), the design of the slipform system and the curing of concrete are crucial to ensuring the quality of silo formation and the airtightness of the stored material. The slipform system typically includes a platform system, a lifting system, a formwork system, and electrical and hydraulic systems. Traditional slipform systems often use a through-type jack lifting system, which can lead to overclimbing at individual or multiple jack positions, easily causing the entire slipform system to shift and indirectly affecting the silo construction quality. Furthermore, in the traditional application of slipform systems, it is necessary to ensure uniform distribution of the lifting frames and balanced loads to guarantee the stability and safety of the slipform. However, this is often difficult to effectively control during on-site operation and management, relying mainly on experience. Excessive localized loading can also lead to a lack of safety awareness among personnel.

[0004] Therefore, based on the application of traditional slipform systems, it is necessary to develop a self-adjusting posture hydraulic slipform machine and its supporting construction technology. Summary of the Invention

[0005] To address the problems existing in the prior art, this invention provides a self-adjustable hydraulic slipform machine and construction method. Through the comprehensive application of the suspension operating frame attitude balance system and its supporting sensors, the slipform machine can still achieve attitude balance and frame stability even when the load distribution of the slipform machine platform system is uneven or changing, thereby ensuring the quality of concrete molding.

[0006] To solve the above technical problems, the present invention includes the following technical solutions: A self-adjustable hydraulic slipform press, comprising: The lifting system includes embedded load-bearing limit rails and a climbing mechanism; At least two spaced portal support systems are provided. The portal support system includes a main beam and two main columns. The tops of the two main columns are fixedly connected to both ends of the main beam. A vertical hole is provided at the center of the main beam for the embedded load-bearing limit guide rail to pass through. The bottom of the climbing mechanism is fixedly connected to the main beam. The self-weighing platform system includes one self-weighing platform system on each side of the portal support system. Each self-weighing platform system includes a support frame, a loading platform, a pressure sensor, and an inclination sensor. The two ends of the support frame are fixedly connected to the main columns on the same side of the two portal support systems. A pressure sensor for measuring the load on the loading platform is installed between the support frame and the loading platform. An inclination sensor is installed at each end of the main beam of the portal support system. The suspension operating frame attitude balance system includes a suspension frame and an operating platform mounted on the suspension frame, rollers mounted on the top of the suspension frame, and a telescopic drive mechanism; the suspension frame is rolledly connected to the support frame via rollers, and the telescopic drive mechanism can drive the suspension frame to move horizontally, so that the inclination angles at both ends of the main crossbeam tend to be consistent; the suspension frame includes a vertical column, and a bidirectional tensile and compressive sensor for measuring axial force is mounted on the vertical column. The track-mounted counterweight water tank includes a track beam, a sliding block, a water tank, and a sliding drive mechanism. The track beam is mounted on a suspension frame, the sliding block is mounted on the track beam, and the water tank is fixedly connected to the sliding block. The sliding drive mechanism enables the sliding block to move along the track beam, adjusting the position of the water tank on the track beam. This allows the tilt angles of the same ends of the main crossbeams of two adjacent portal support systems to be made more consistent.

[0007] Furthermore, multiple square holes are equally spaced vertically on both sides of the embedded load-bearing limit guide rail; The climbing mechanism includes an upper support wing, a hydraulic cylinder, and a lower support wing. The upper and lower support wings are horizontally deployed and wedged into the square holes of the embedded load-bearing limit guide rail by built-in telescopic wedges. Due to the shape control of the telescopic wedges, the upper and lower support wings can only move upward in one direction. The lifting system drives the upper and lower support wings to alternately bear loads along the fixed-distance limit square holes of the embedded load-bearing limit guide rail through the hydraulic cylinder, thereby driving the entire slipform machine to climb upward.

[0008] Furthermore, the slipform machine also includes a momentum wheel attitude balancing system, which includes a servo motor and a momentum wheel. One end of the servo motor is fixedly connected to the main crossbeam, and the other end of the servo motor is connected to the momentum wheel. The servo motor can drive the momentum wheel to rotate, providing a reaction torque to balance the torque difference between the two ends of the main crossbeam.

[0009] Furthermore, two pressure sensors are installed at each end of the loading platform where it connects to the support frame, and the four pressure sensors are arranged in a rectangular pattern.

[0010] Furthermore, the tension-compression bidirectional sensor has screw-shaped upper and lower sides, which are connected to the vertical column through a flange with threaded holes.

[0011] Accordingly, the present invention also provides a construction method for the self-adjustable hydraulic slipform machine, comprising the following steps: Step 1: Install the hydraulic slipform machine; specifically: install the embedded load-bearing limit guide rail and climbing mechanism, install the gantry support system, and install the self-weighing platform system, the suspended operating frame attitude balance system and the track counterweight water tank on the same side of two adjacent gantry support systems. Step 2: Position the water tank in the middle of the track beam and calibrate the initial data of the pressure sensor, tension-compression bidirectional sensor, and tilt sensor to 0. Step 3: During construction, data from the tilt sensors are collected in real time. The tilt angle data from the four tilt sensors at both ends of the main beam of the two adjacent portal frame support systems are θ. L1 θ R1 θ L2 θ R2 ; Step 4: Judgment The values ​​are related to preset values ​​θ1 and θ2, where θ1 and θ2 are preset angle thresholds and θ1 < θ2. L =(θ L1 +θ L2 ) / 2、θ R =(θ R1 +θ R2 ) / 2; like <θ1, the slipform machine is safe and no adjustment is needed; If θ1≤ If θ2 <, the system issues a Level 1 warning and proceeds to step five. like θ2, the system issues a level-two warning and proceeds to step six; Step 5: Material on the side with the larger load can only be used and must not be further loaded until... <θ1, the Level 1 warning is lifted, proceed to step 3.

[0012] Step Six: First, adjust the positions of the water tanks on both sides so that θ L1 =θ L2 θ R1 =θ R2 The position of the suspension frames on both sides is adjusted using a suspension operating frame attitude balancing system. If θ1 ≤ θ1, proceed to step three. <θ2, proceed to step five.

[0013] Furthermore, in step six, data from the compression sensor and the tension-compression bidirectional sensor are collected in real time to determine the total weight of the loading platforms on both sides of the main crossbeam as G. L G R And the offset values ​​of the center of gravity of the two stacking platforms relative to the centroid. △X L1 , △Y L1 , △X R1 , △Y R1 Determine the weight F of the operating frames on both sides of the main crossbeam. L F R And the offset of the center of gravity of the operating platform relative to the centroid. △X L2 , △Y L2 , △X R2 , △Y R2 ; Adjust the positions of the water tanks on both sides so that θ L1 =θ L2 θ R1 =θ R2 Specifically, the distance between the water tanks on both sides is adjusted. ,in: , ; Where, m 空 This refers to the unloaded weight of the track-mounted counterweight water storage tank. , These represent the weight of water added to the two water tanks, respectively.

[0014] Furthermore, the position of the suspension frames on both sides is adjusted using a suspension operating frame attitude balancing system, specifically as follows: First, based on the principle of torque balance, calculate the distance that needs to be driven by the electric telescopic screw to move the suspension brackets on both sides in the same direction. ; The maximum distance that the two suspension brackets can move is denoted as follows: , ,and < ; like The electric drive telescopic screw causes the suspension brackets on both sides to move synchronously. ;like At that time, the system will deactivate the Level 2 early warning alarm; like First, drive the electric telescopic screw to move the suspension brackets on both sides synchronously. ,like When the time comes, the Level II warning alert will be lifted; if The alert level will be upgraded from Level II to Level I; if it remains unchanged... ,but: Based on the principle of torque balance, calculate the distance the suspension needs to continue moving before reaching its maximum travel distance. ; like - The electric drive telescopic screw is directly driven for adjustment until... The level-two warning alert was lifted. like - First, adjust the electric drive telescopic screw. - ,like When this happens, the system will deactivate the Level 2 warning alert; if The system changed from a Level 2 early warning alarm to a Level 1 early warning alarm; if it still does not... Work needs to be stopped to adjust the loads on both sides and the sensors need to be recalibrated.

[0015] Furthermore, the slipform machine also includes a momentum wheel attitude balancing system, which includes a servo motor and a momentum wheel. One end of the servo motor is fixedly connected to the main crossbeam, and the other end of the motor's shaft is connected to the momentum wheel. By collecting monitoring data from compression sensors and tension-compression bidirectional sensors, the bending moment difference between the two ends of the main crossbeam is calculated. The servo motor can drive the momentum wheel to rotate, providing a reaction torque to balance the bending moment difference between the two ends of the main crossbeam.

[0016] The present invention, by employing the above technical solutions, has the following advantages and positive effects compared with the prior art: The self-adjustable hydraulic slipform machine and construction method provided by the present invention can monitor the tilt state of the main crossbeam through tilt angle sensors, and ensure that the tilt angles of adjacent main crossbeams at the same end are consistent through track-mounted counterweight water tanks; it can monitor the specific load on the loading platform through pressure sensors, and monitor the specific load on the operating platform through tension-compression bidirectional sensors, obtaining the difference in bending moments on both sides of the main crossbeam; and it can adjust the position of the suspension frame through the telescopic drive mechanism of the suspension operating frame attitude balancing system, so that the tilt angles at both ends of the main crossbeam tend to be consistent, achieving attitude balance and frame stability of the slipform machine, thereby preventing lateral overturning of the slipform machine and ensuring its safety. In addition, the self-adjustable hydraulic slipform machine can keep the embedded load-bearing limit guide rail in a vertical state, which can better ensure the quality of concrete forming during slipform construction. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of a self-adjusting hydraulic slipform press. Figure 2 To improve the system's structural diagram; Figure 3 A structural diagram of the lifting system and the portal frame support system; Figure 4 This is a schematic diagram of the structure of a self-weighing platform system; Figure 5 This is a schematic diagram of the attitude balance system of the suspended operating frame; Figure 6 This is a schematic diagram of the momentum wheel attitude balancing system; Figure 7 A side view of a self-adjusting hydraulic slipform press; Figure 8 This is a front view of a self-adjusting hydraulic slipform press. Figure 9 This is a schematic diagram of the forces acting on the loading platform. Figure 10 This is a force diagram of the operating platform; Figures 11 to 13 A schematic diagram illustrating the construction process using a self-adjusting posture hydraulic slipform machine; Figures 14 to 16 This is a schematic diagram of the momentum wheel attitude balancing system.

[0018] The numbers in the diagram are as follows: 1-Lifting system; 11-Climbing mechanism; 111-Upper support wing; 112-Hydraulic cylinder; 113-Lower support wing; 12-Embedded load-bearing limit guide rail; 2-Portal support system; 21-Main crossbeam; 22-Main column; 3-Self-weighing platform system; 31-Tripod crossbeam; 32-Tripod diagonal bar; 33-Tripod lower crossbeam; 34-Stacking platform; 35-Pressure sensor; 36-Tilting sensor; 4-Suspension operating frame attitude balance system; 41-Short channel steel beam; 42-Long channel steel beam; 43-Vertical channel steel column; 44-Vertical square tube column; 45-Square tube beam; 46-Grid mesh panel; 47-Tension and compression bidirectional sensor; 48-Rolling wheel; 49-Electric drive telescopic screw; 5-Rail-mounted counterweight water storage tank; 511-Rail beam; 512-Sliding block; 521-Water storage tank; 522-Water inlet; 523-Sprinkler head interface; 6-Momentum wheel attitude balancing system; 61-U-shaped connector; 62-Fixed component; 63-Servo motor; 64-Momentum wheel. Detailed Implementation

[0019] The following detailed description, in conjunction with the accompanying drawings and specific embodiments, provides a self-adjustable hydraulic slipform machine and construction method provided by the present invention. The advantages and features of the present invention will become clearer from the following description. It should be noted that the accompanying drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.

[0020] Example 1 like Figure 1As shown, the self-adjusting posture hydraulic slipform machine provided in this embodiment includes a lifting system 1, a gantry support system 2, a self-weighing platform system 3, a suspended operating frame posture balancing system 4, and a track-mounted counterweight water tank 5.

[0021] like Figure 2 As shown, the lifting system includes a climbing mechanism 11 and an embedded load-bearing limiting guide rail 12. The embedded load-bearing limiting guide rail 12 is vertically arranged, with its bottom cast in a concrete structure. Multiple square holes are evenly spaced vertically on both sides of the embedded load-bearing limiting guide rail. The climbing mechanism 11 can climb upwards along the embedded load-bearing limiting guide rail 12 at a fixed distance. For example, the climbing mechanism 11 includes an upper support wing 111, a hydraulic cylinder 112, and a lower support wing 113. The upper support wing 111 and lower support wing 113 horizontally unfold and wedge into the square holes of the embedded load-bearing limiting guide rail 12 via built-in telescopic wedges. Due to the shape control of the telescopic wedges, the upper support wing 111 and lower support wing 113 can only move upwards in one direction. The lifting system 1 drives the upper and lower support wings to alternately bear loads along the fixed-distance limiting square holes of the embedded load-bearing limiting guide rail via the hydraulic cylinder 112, thus driving the entire slipform machine upwards. Existing technology can achieve unidirectional climbing of the upper support wing 111 and the lower support wing 113 by extending and retracting the hydraulic cylinder, which will not be elaborated further.

[0022] Combination Figures 1 to 3 As shown, the portal support system 2 is the main load-bearing component of the slipform machine. It adopts a portal frame structure system, including a main crossbeam 21 and two main columns 22. The tops of the two main columns 22 are fixedly connected to both ends of the main crossbeam 21. A vertical hole is provided at the center of the main crossbeam 21 for the embedded load-bearing limit guide rail 12 to pass through. For example, the main crossbeam 21 uses a double-channel steel structure with a gap in the middle to allow the embedded load-bearing limit guide rail 12 to pass through. The main columns 22 use single-channel steel and are vertically connected to both ends of the main crossbeam 21 by bolt welding. The main crossbeam 21 is bolted to the lower support wing 113 of the lifting system 1. The self-weighing platform system 3, the suspended operating frame attitude balancing system 4, and the momentum wheel attitude balancing system 6 are all connected as auxiliary systems to the main column 22 of the portal support system. The overall load is transferred through the portal support system to the lower support wing, further to the embedded load-bearing limit guide rail 12, and finally to the concrete structure.

[0023] Combination Figures 1 to 4 As shown, the self-weighing platform system 3 is the main material loading platform, including a support frame, a loading platform 34, a pressure sensor 35, and a tilt sensor 36. For example, as... Figure 4As shown, the support frame includes a triangular crossbeam 31, a triangular diagonal brace 32, and a lower triangular crossbeam 33. The triangular crossbeam 31, diagonal brace 32, and lower triangular crossbeam 33 are connected by bolts and serve as an auxiliary structure connected to the main column 22 of the portal support system 2, forming a stable triangular frame. Pressure sensors 35 are installed at the top of both ends of the support frame. These are cylindrical pressure sensors with a range of 100-10000 kg, an IP67 protection rating, and are characterized by low height, small deformation, small size, and accurate measurement. A loading platform 34 is mounted on two sets of four pressure sensors 35, arranged in a rectangular shape. The four pressure sensors are located at the four corner points of the rectangle. The loading platform 34 is mainly used for loading construction materials. The tilt sensor 36 is installed on the side end of the main beam 21 in the 2-gantry support system. It is used to measure the angle of rotation change of the main beam 21 caused by unbalanced loading, and to reflect the rotational deformation of the main beam 21. The tilt sensor 36 can be a screen-display tilt sensor with a built-in display screen to display the measurement data.

[0024] Combination Figures 1 to 5 As shown, the suspended operating frame attitude balancing system 4 serves as both an operating platform for construction workers repairing silo walls and an adjustment system for controlling the attitude balance of the slipform machine on both sides. The suspended operating frame attitude balancing system 4 is suspended below a set of two triangular frame beams 31, including a suspension frame and a grid plate supported on the suspension frame. Rollers and an electrically driven telescopic screw 49 are located at the top of the suspension frame. The suspension frame can move horizontally along the support frame of the self-weighing platform system 3. The grid plate 46 is used for construction workers to stand on and for stacking small tools. A tension-compression bidirectional sensor 47 is installed on the vertical column of the suspension frame above the grid plate. The tension-compression bidirectional sensor 47 has a cylindrical body and screw-shaped upper and lower sides, connected to the vertical column via a flange with threaded holes. Its measuring range is 100-10000 kg, its protection level is IP67, and it features small deformation and high dynamic response frequency. A set of four tension-compression bidirectional sensors 47 can identify the specific load on the grid plate 46. For example, the suspension frame includes a short channel steel beam 41, a long channel steel beam 42, a vertical channel steel column 43, a vertical square tube column 44, and a square tube beam 45; the rollers include a first rolling roller, a second rolling roller, and a third rolling roller. The first and second rolling rollers can roll in the groove of the triangular frame crossbeam 31, and the third rolling roller can roll in the groove of the lower crossbeam 33 of the triangular frame; the fixed end of the electric drive telescopic screw 49 is installed on the lower side of the triangular frame crossbeam 31, and the telescopic end is connected to the vertical channel steel column 43. It is used to pull the suspension frame to slide along the inside and outside of the groove to adjust the attitude of the slipform machine, so that the inclination angles at both ends of the main crossbeam tend to be consistent.

[0025] Combination Figure 1 and Figure 5As shown, the track-mounted counterweight water tank 5 serves as both a water source for construction workers to spray water for curing the concrete after demolding and a means to adjust the center of gravity of the self-weighing platform system 3. The track-mounted counterweight water tank 5 includes a track beam 511, a sliding block 512, a water tank 521, and a sliding drive mechanism. The track beam is mounted on the main columns of two adjacent portal support systems 2 on the same side at both ends. One end of the sliding block 512 is slidably connected to the track beam 511, and the other end is connected to the water tank 521. The top of the water tank 521 has a water inlet 522, and nozzle interfaces 523 at both ends are provided for construction workers to spray water. The water tank 521 has a built-in resistive liquid level sensor to read the water level. The sliding drive mechanism allows the sliding block to move along the track beam, adjusting the position of the water tank on the track beam and aligning the inclination angles of the same ends of the main crossbeams of the two adjacent portal support systems. The track beam 511 is connected to the vertical channel steel column 43. In one specific embodiment, such as Figure 6 As shown, the slipform machine also includes a momentum wheel attitude balancing system 6. The momentum wheel attitude balancing system 6 is another device that maintains the symmetrical balance between the slipform machine frame and the load. The momentum wheel attitude balancing system 6 includes a U-shaped connector 61, a fixing component 62, a servo motor 63, and a momentum wheel 64. One open end of the U-shaped connector 61 is fixed to both sides of the center position of the main crossbeam 21 in the portal support system 2, and the closed end is connected to the servo motor 63. The momentum wheel 64 is connected to one side of the end of the main crossbeam 21 in the portal support system 2 through the fixing component 62. The rotating shaft of the momentum wheel 64 is connected to the rotor of the servo motor 63. When the material load imbalance of the self-weighing platform systems on both sides reaches a certain level, and the tilt sensor detects a clockwise rotation tendency of the main crossbeam 21, reaching a certain threshold, the servo motor 63 is driven to rotate the momentum wheel 64 clockwise, thereby providing a counter-torque to rotate the main crossbeam 21 counterclockwise, maintaining the balance of the main crossbeam 21 and preventing the slipform machine from tilting to one side.

[0026] Example 2 This embodiment provides a self-adjustable hydraulic slipform machine and its construction method, which will be described below in conjunction with... Figures 1 to 16 The construction method will be further described in conjunction with the content of Example 1. It should be noted that the annular silo structure can also be a linear wall structure. The number and spacing of the lifting systems can be set as needed. The portal support system corresponds to the lifting system. A self-weighing platform system, a suspended operating frame attitude balancing system, and a track-mounted counterweight water tank are installed on both sides of the concrete structure. For ease of distinction, the two sides of the concrete structure are distinguished by L and R. The following description uses the construction of a silo as an example, with the left side representing the outer side of the silo wall and the right side representing the inner side. For ease of description, it is assumed that the load on the left side is greater than the load on the right side during normal construction. The construction method includes the following steps.

[0027] Step 1: Install the hydraulic slipform machine; specifically: install the embedded load-bearing limit guide rail and climbing mechanism, install the gantry support system, and install the self-weighing platform system, the suspended operating frame attitude balance system and the track counterweight water tank on the same side of two adjacent gantry support systems.

[0028] Step 2: Position the water tank in the middle of the track beam, and calibrate the initial data of the pressure sensor, the initial data of the tension-compression bidirectional sensor, and the initial data of the tilt sensor to 0.

[0029] After the initial installation, with the initial loading platform and water tank in an unloaded state, firstly, the drive sliding block 512 moves the water tank 521 to the middle position of the track beam. , These are the horizontal distances between the centroids of the left and right water tanks and the center point of the track beam, respectively.

[0030] like Figure 9 As shown, two pressure sensors are installed at each end of the loading platform where it connects to the support frame. The four pressure sensors are arranged in a rectangle. The two sides of the rectangle are S1 and W1, where S1 is the side length parallel to the cylinder wall and W1 is the side length perpendicular to the cylinder wall. The distance from the centroid of the loading platform 34 to the centroid of the embedded load-bearing limit guide rail 12 is T1. The readings of the pressure sensors are as follows: , Among them, G L1 G L2 G R1 G R2 This is the reading from a pressure sensor located far from the cylinder wall.

[0031] like Figure 10 As shown, the suspension frame includes four vertical columns, each equipped with a tension-compression bidirectional sensor. The four sensors are arranged in a rectangle, with two sides of length S2 and W2, where S2 is the side length parallel to the cylinder wall and W2 is the side length perpendicular to the cylinder wall. The readings of the compression sensors are as follows: , Among them, F L1 F L2 F R1 F R2 The readings are from a bidirectional tension / compression sensor located away from the cylinder wall.

[0032] The distances between the centroid of the operating platform of the suspension operating frame attitude balance system on the outer and inner sides of the cylinder wall and the center of the embedded load-bearing limit guide rail 12 are respectively , .

[0033] Among them, W1, S1, T1, W2, and S2 are quantitative. This is a variable that can be calculated based on the drive length of the electric telescopic lead screw 49. The reading of the tilt sensor is calibrated as follows: , .

[0034] Step 3: During construction, data from the tilt sensors are collected in real time. The tilt angle data from the four tilt sensors at both ends of the main beam of the two adjacent portal frame support systems are θ. L1 θ R1 θ L2 θ R2 ; The tilt angles extracted by the tilt sensors 36 on the left and right sides of the main beam of the portal frame support system are θ respectively. L1 θ R1 The tilt angles extracted by the tilt sensors 36 on the left and right sides of the main beam of the adjacent portal frame support system are θ and θ, respectively. L2 θ R2 .

[0035] Step 4: Judgment The values ​​are related to preset values ​​θ1 and θ2, where θ1 and θ2 are preset angle thresholds and θ1 < θ2. L =(θ L1 +θ L2 ) / 2、θ R =(θ R1 +θ R2 ) / 2; like <θ1, the slipform machine is safe and no adjustment is needed; If θ1≤ If θ2 <, the system issues a Level 1 warning and proceeds to step five. like θ2, the system issues a level 2 warning and proceeds to step six.

[0036] The preset values ​​θ1 and θ2 are related to the moment of inertia of the main beam and the moment of inertia of the embedded load-bearing limit guide rail. As an example, empirical values ​​are selected: θ1 = 0.38° and θ2 = 0.5°.

[0037] Step 5: Material on the side with the larger load can only be used and must not be further loaded until... <θ1, the Level 1 warning is lifted, proceed to step 3.

[0038] Step Six: First, adjust the positions of the water tanks on both sides so that θ L1 =θ L2 θ R1 =θ R2 The position of the suspension frames on both sides is adjusted using a suspension operating frame attitude balancing system. If θ1 ≤ θ1, proceed to step three. <θ2, proceed to step five.

[0039] The following section provides a further analysis of the forces acting on the loading platform, the operating platform, and the track-mounted counterweight water tank, as well as the location of their centers of gravity.

[0040] The pressure sensor 35 on the outside of the cylinder wall extracts G. L1 G L2 G L3 G L4 G was obtained L1 G L2 The pressure sensor 35 is distributed far from the cylinder wall, and the total weight extracted by the stacking platform 34 on the outside of the cylinder wall is G. L = G L1 +G L2 +G L3 +G L4 Considering the uneven load distribution, the offset values ​​of the center of gravity of the loading platform on the outer side of the cylinder wall relative to the centroid are respectively △X L1 , △Y L1 ,satisfy: , .

[0041] Similarly, G was extracted from the inner side of the cylinder wall. R1 G R2 G R3 G R4 The weight extracted from the loading platform 34 inside the cylinder wall is G. R =G R1 +G R2 +G R3 +G R4 Considering the uneven load distribution, the offset values ​​of the center of gravity of the loading platform on the inner side of the cylinder wall relative to the centroid are respectively △X R1 , △Y R1 ,satisfy: , .

[0042] At this moment, the weight extracted by the tension-compression bidirectional sensor 47 of the attitude balance system 4 of the suspension operating frame on the outer side of the cylinder wall is F. L1 F L2 F L3 F L4 F L = F L1 +F L2 +F L3 +F L4Considering the uneven weight distribution, the offset values ​​of the center of gravity of the operating platform on the outer side of the cylinder wall relative to the centroid are respectively... △X L2 , △Y L2 ,satisfy: , .

[0043] The weight F extracted by the tension-compression bidirectional sensor 47 of the attitude balance system 4 of the suspended operating frame inside the cylinder wall is... R1 F R2 F R3 F R4 F R = F R1 +F R2 +F R3 +F R4 Considering the uneven weight distribution, the offset values ​​of the center of gravity of the operating platform on the inner side of the cylinder wall relative to the centroid are as follows: △X R2 , △Y R2 ,satisfy: , .

[0044] The unloaded weight of the track-mounted counterweight water storage tank is m. 空 The weights of the outer and inner sides of the cylinder after water storage are respectively , The offset value of the outer track counterweight water storage tank 5 from the centroid is [value missing]. The offset value of the inner side track counterweight water storage tank 5 from the centroid is... .

[0045] As construction progresses into normal operation, differences in the amount of surcharge material used on the outer and inner sides of the silo gradually emerge (G appears). L >G R (For example, in a certain time period, the operator identifies θ using the tilt sensor 36) L >θ R First, determine The values ​​of θ1 and θ2 are compared with the preset values ​​θ1 = 0.38° and θ2 = 0.5°. Based on the judgment results, it is determined whether adjustments are needed. Specifically: exist At that time, the slipform machine is safe and no corresponding adjustments are made; exist At this time, the system issues a Level 1 warning alarm, alerting construction personnel that materials on the outside of the silo are for use only and must not be further piled up (because materials are usually piled in categories on both the inside and outside of the silo wall, and their attitude cannot be adjusted by moving them between the inside and outside sides), until... The Level 1 warning alert will be lifted at this time. At this point, the system issued a level-two warning alarm, indicating a significant safety hazard. To avoid disrupting normal construction, the operators intervened using the suspension operating frame's attitude balancing system to make adjustments.

[0046] The following section provides a further introduction to the specific operations of using the suspension maneuver's attitude balance system for adjustment.

[0047] First, drive the sliding block 512 to move the water storage tank 521 away from the centroid by the offset value. , so that: , , This ensures that the two main crossbeams of the gantry support system 2 of two adjacent machine positions have the same inclination angle on both the inner and outer sides, i.e., satisfying θ. L1 =θ L2 θ R1 =θ R2 .

[0048] Secondly, the suspension brackets on both sides of the moving cylinder wall are adjusted by the electric drive telescopic screw 49. ,like Figure 12 As shown, for ease of unified control, all adjustments are made towards the inside of the silo. First, calculate the distance that needs to be moved by the electric drive telescopic screw 49 to move the suspension bracket inside the silo wall. , so that: ; In the formula, ; make The adjustment distance can be calculated as follows: ; In actual construction, because both the outer and inner operating platforms are close to the cylinder wall, therefore, if Figure 2 As shown, when moving to the right, the left suspension has less room to move, while the right suspension has more room to move. Let the maximum movable distance of the left suspension be denoted as... The maximum movable distance of the right-side suspension bracket is denoted as... , < The following discussion will address different scenarios.

[0049] like The operator directly and synchronously drives the electric telescopic lead screws 49 on both sides for adjustment, and... At that time, the system will lift the Level 2 warning alert.

[0050] like The operator first synchronously drives the two electric drive telescopic screws 49 to move a distance. , obtain Real-time data, if When this happens, the system will deactivate the Level 2 warning alert; if The system upgraded from a Level 2 warning to a Level 1 warning and alerted construction personnel, reminding them that materials outside the silo were for use only and must not be further loaded, and that monitoring should continue. Real-time data, until The Level 1 alert will be lifted immediately. If it remains... If the level two warning alarm is not lifted, it is necessary to continue driving the electric telescopic screw 49 on the right side for adjustment, specifically as follows: First, calculate the distance that needs to be moved by the electric drive telescopic screw 49 to move the suspension bracket inside the cylinder wall. , so that: ; In the formula, ; make The adjustment distance can be calculated as follows: ; like - The operator directly drives the electric telescopic screw 49 for adjustment, and observes the adjustment through the tilt sensor 36. At that time, the system will deactivate the Level 2 early warning alarm; like - The operator first drives the electric telescopic screw 49 to adjust... and obtain Real-time data, if When this happens, the system will deactivate the Level 2 warning alert; if The system upgraded from a Level 2 warning to a Level 1 warning and alerted construction personnel, reminding them that materials outside the silo were for use only and must not be further loaded, and that monitoring should continue. Real-time data, until The Level 1 alert will be lifted immediately. If it remains... Work needs to be stopped to adjust the load on both sides of the silo and readjust the position of the operating platform to return to normal construction status.

[0051] In one specific embodiment, the self-adjusting attitude hydraulic slipform machine includes a momentum wheel attitude balancing system 6. The following specific examples, combined with... Figures 14 to 16 A detailed explanation follows. During periods of non-construction, sudden strong winds or other unforeseen circumstances may cause changes in the posture of the hydraulic slipform machine. When the tilt sensor 36 detects a clockwise rotation tendency in the main crossbeam 21 and reaches a certain threshold, it drives the servo motor 63 to rotate the momentum wheel 64 clockwise, thereby providing a counter-torque to rotate the main crossbeam 21 counterclockwise. This maintains the balance of the main crossbeam 21 and prevents the slipform machine from tipping to one side.

[0052] Because the momentum wheel can provide a limited reverse torque, it can typically only handle... In this situation, and given the short duration of the provided reverse torque, it is only a temporary measure. The specific construction method is as follows: After each construction is completed, confirm ; Taking a certain period of time as an example, if a sudden strong wind or other situation occurs at night during a period when construction is not underway, causing the hydraulic slipform machine's posture to change, the corresponding... If, no corresponding adjustments are made; if When this happens, the system issues a Level 1 warning alarm; such as Figure 16 As shown, the automatic drive servo motor 63 rotates the momentum wheel 64 counterclockwise, thereby providing a counter-torque to rotate the main crossbeam 21 clockwise. During this process, according to... The value dynamically controls the speed of servo motor 63, until... The rear momentum wheel 64 gradually stopped rotating, and the system deactivated the first-level warning alarm. like The system issued a level-two warning alarm, indicating a significant safety hazard. Construction workers were alerted and instructed to intervene manually to stabilize the sliding suspension frame by adjusting its position or taking other measures until the situation was resolved. After restoring the suspension to its initial position or removing other measures, the Level 2 warning alarm is then deactivated.

[0053] When the main beam is in equilibrium, the momentum wheel's angular velocity ω = 0, and its moment of inertia J = 1 / (2mR). 2At this point, angular momentum L = J × ω = 0, and net external torque M = 0. At this time, G = N. With the main beam tilted, the motor drives the momentum wheel to accelerate along the tilt direction, resulting in angular momentum ΔL = J × Δω. To satisfy the conservation of angular momentum, ΔL' = ΔL = J × Δω, providing a reverse torque M to the support system. At this point, the reaction force F' around point O is balanced with the resultant force of G and N, thus restoring the main beam to its equilibrium state and providing time to adjust the forces acting on both sides.

[0054] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0055] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the appended claims.

Claims

1. A self-adjustable hydraulic slipform press, characterized in that, include: The lifting system includes embedded load-bearing limit rails and a climbing mechanism; At least two spaced portal support systems are provided. The portal support system includes a main beam and two main columns. The tops of the two main columns are fixedly connected to both ends of the main beam. A vertical hole is provided at the center of the main beam for the embedded load-bearing limit guide rail to pass through. The bottom of the climbing mechanism is fixedly connected to the main beam. The self-weighing platform system includes one self-weighing platform system on each side of the portal support system. Each self-weighing platform system includes a support frame, a loading platform, a pressure sensor, and an inclination sensor. The two ends of the support frame are fixedly connected to the main columns on the same side of the two portal support systems. A pressure sensor for measuring the load on the loading platform is installed between the support frame and the loading platform. An inclination sensor is installed at each end of the main beam of the portal support system. The suspension operating frame attitude balance system includes a suspension frame and an operating platform mounted on the suspension frame, rollers mounted on the top of the suspension frame, and a telescopic drive mechanism; the suspension frame is rolledly connected to the support frame via rollers, and the telescopic drive mechanism can drive the suspension frame to move horizontally, so that the inclination angles at both ends of the main crossbeam tend to be consistent; the suspension frame includes a vertical column, and a bidirectional tensile and compressive sensor for measuring axial force is mounted on the vertical column. The track-mounted counterweight water tank includes a track beam, a sliding block, a water tank, and a sliding drive mechanism. The track beam is mounted on a suspension frame, the sliding block is mounted on the track beam, and the water tank is fixedly connected to the sliding block. The sliding drive mechanism enables the sliding block to move along the track beam, adjusting the position of the water tank on the track beam. This allows the tilt angles of the same ends of the main crossbeams of two adjacent portal support systems to be made more consistent.

2. The self-adjustable hydraulic slipform machine as described in claim 1, characterized in that, The embedded load-bearing limit guide rail has multiple square holes spaced equally vertically on both sides. The climbing mechanism includes an upper support wing, a hydraulic cylinder, and a lower support wing. The upper and lower support wings are horizontally deployed and wedged into the square holes of the embedded load-bearing limit guide rail by built-in telescopic wedges. Due to the shape control of the telescopic wedges, the upper and lower support wings can only move upward in one direction. The lifting system drives the upper and lower support wings to alternately bear loads along the fixed-distance limit square holes of the embedded load-bearing limit guide rail through the hydraulic cylinder, thereby driving the entire slipform machine to climb upward.

3. The self-adjustable hydraulic slipform machine as described in claim 1, characterized in that, The slipform machine also includes a momentum wheel attitude balancing system, which includes a servo motor and a momentum wheel. One end of the servo motor is fixedly connected to the main crossbeam, and the other end of the motor is connected to the momentum wheel. The servo motor can drive the momentum wheel to rotate, providing a reaction torque to balance the torque difference between the two ends of the main crossbeam.

4. The self-adjustable hydraulic slipform machine as described in claim 1, characterized in that, Two pressure sensors are installed at each end of the loading platform where it connects to the support frame, and the four pressure sensors are arranged in a rectangular pattern.

5. The self-adjustable hydraulic slipform machine as described in claim 1, characterized in that, The tension-compression bidirectional sensor has screw-shaped components on both the top and bottom, and is connected to the vertical column through a flange with threaded holes.

6. The construction method of the self-adjustable hydraulic slipform machine as described in claim 1, characterized in that, Includes the following steps: Step 1: Install the hydraulic slipform machine; specifically: install the embedded load-bearing limit guide rail and climbing mechanism, install the gantry support system, and install the self-weighing platform system, the suspended operating frame attitude balance system and the track counterweight water tank on the same side of two adjacent gantry support systems. Step 2: Position the water tank in the middle of the track beam and calibrate the initial data of the pressure sensor, tension-compression bidirectional sensor, and tilt sensor to 0. Step 3: During construction, data from the tilt sensors are collected in real time. The tilt angle data from the four tilt sensors at both ends of the main beam of the two adjacent portal frame support systems are θ. L1 θ R1 θ L2 θ R2 ; Step 4: Judgment The values ​​are related to preset values ​​θ1 and θ2, where θ1 and θ2 are preset angle thresholds and θ1 < θ2. L =(θ L1 +θ L2 ) / 2、θ R =(θ R1 +θ R2 ) / 2; like <θ1, the slipform machine is safe and no adjustment is needed; If θ1≤ If θ2 <, the system issues a Level 1 warning and proceeds to step five. like θ2, the system issues a level-two warning and proceeds to step six; Step 5: Material on the side with the larger load can only be used and must not be further loaded until... <θ1, the Level 1 warning is lifted, proceed to step 3.

7. Step Six: First, adjust the positions of the water tanks on both sides so that θ L1 =θ L2 θ R1 =θ R2 The position of the suspension frames on both sides is adjusted using a suspension operating frame attitude balancing system. If θ1 ≤ θ1, proceed to step three. <θ2, proceed to step five.

8. The construction method of the self-adjustable hydraulic slipform machine as described in claim 6, characterized in that, In step six, data from the compression sensor and the tension-compression bidirectional sensor are collected in real time to determine the total weight of the loading platforms on both sides of the main crossbeam as G. L G R And the offset values ​​of the center of gravity of the two stacking platforms relative to the centroid. △X L1 , △Y L1 , △X R1 , △ Y R1 Determine the weight F of the operating frames on both sides of the main crossbeam. L F R And the offset of the center of gravity of the operating platform relative to the centroid. △ X L2 , △Y L2 , △X R2 , △Y R2 ; Adjust the positions of the water tanks on both sides so that θ L1 =θ L2 θ R1 =θ R2 Specifically, the distance between the water tanks on both sides is adjusted. ,in: ， ； Where, m 空 This refers to the unloaded weight of the track-mounted counterweight water storage tank. , These represent the weight of water added to the two water tanks, respectively.

9. The construction method of the self-adjustable hydraulic slipform machine as described in claim 7, characterized in that, The position of the suspension frames on both sides is adjusted using a suspension operating frame attitude balancing system, specifically as follows: First, based on the principle of torque balance, calculate the distance that needs to be driven by the electric telescopic screw to move the suspension brackets on both sides in the same direction. ; The maximum distance that the two suspension brackets can move is denoted as follows: , ,and < ; like The electric drive telescopic screw causes the suspension brackets on both sides to move synchronously. ;like At that time, the system will deactivate the Level 2 early warning alarm; like First, drive the electric telescopic screw to move the suspension brackets on both sides synchronously. ,like When the time comes, the Level II warning alert will be lifted; if The alert level was changed from Level II to Level I. If still ,but: Based on the principle of torque balance, calculate the distance the suspension needs to continue moving before reaching its maximum travel distance. ; like - The electric drive telescopic screw is directly driven for adjustment until... The level-two warning alert was lifted. like - First, adjust the electric drive telescopic screw. - ,like When this happens, the system will deactivate the Level 2 warning alert; if The system changed from a Level II early warning alarm to a Level I early warning alarm; If still Work needs to be stopped to adjust the loads on both sides and the sensors need to be recalibrated.

10. The construction method of the self-adjustable hydraulic slipform machine as described in claim 6, characterized in that, The slipform machine also includes a momentum wheel attitude balancing system, which includes a servo motor and a momentum wheel. One end of the servo motor is fixedly connected to the main crossbeam, and the other end of the motor's shaft is connected to the momentum wheel. By collecting monitoring data from compression sensors and tension-compression bidirectional sensors, the bending moment difference between the two ends of the main crossbeam is calculated. The servo motor can drive the momentum wheel to rotate, providing a reaction torque to balance the bending moment difference between the two ends of the main crossbeam.

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