Synchronous lifting and lifting posture monitoring system for vertical shaft slip form

Abstract

The invention discloses a shaft slip form synchronous lifting and lifting attitude monitoring system, which comprises a slip form lifting displacement data acquisition unit, a slip form lifting angle data acquisition unit, a slip form lifting angle data acquisition unit, a slip form lifting angle data acquisition unit and a slip form lifting angle data acquisition unit, the data collector is used for collecting displacement data of the displacement sensor and inclination angle data of the inclination angle sensor and uploading to the electrical control system; a lifting attitude monitoring module of the electrical control system analyzes the displacement data and the inclination angle data. The method has the beneficial effects that slip form platform horizontal posture monitoring is omitted, the requirements of underground constructors are reduced, and the construction efficiency is improved; in the aspect of construction safety, a high-precision sensor replaces manual measurement, the detection precision and reliability of various data of the platform are improved, the attitude of the slip form is continuously monitored in real time for 24 hours all day long, and it is ensured that the slip form is centrally and synchronously lifted; and in the aspect of construction quality, the slip form is centered and synchronously lifted, the perpendicularity and flatness of well wall concrete construction are guaranteed, and continuous construction of well wall concrete secondary lining is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of shaft construction equipment, in particular to a shaft slipform synchronous lifting and lifting posture monitoring system. Background Art

[0002] In recent years, investment in pumped storage has continued to increase. Vertical shaft construction, a key technical challenge in pumped storage projects, is characterized by narrow working surfaces, poor ventilation, workers working at height, and exposure to blasting smoke, falling rocks, water, and dust. Underground lining construction is often accompanied by risks such as difficult construction operations, difficult quality control, and high safety risks. Furthermore, the slipform process has been slow to update, with the main process having not undergone significant improvements compared to 40 years ago. Traditional slipform platforms present the following problems during the jacking process:

[0003] (1) The oil routes of all jacks in the sliding mode are composed of "one main oil route + oil distributor + multiple oil distribution routes". Once the oil pump is supplied with oil, all jacks can be supplied with oil. It is impossible to control the "oil inlet-oil return" of a single / multiple jacks, and it is impossible to achieve local jack lifting control;

[0004] (2) The improvement of sliding mode synchronization depends on the mechanical limit device. The mechanical limit buckle positioning efficiency is low and the accuracy is poor. It relies on manual leveling and laying out, and the degree of automation is low.

[0005] (3) Sliding mode attitude control relies on plumb bobs and manual level tube calibration, which also has problems such as low efficiency and poor accuracy.

[0006] The synchronization and posture control of the shaft slipform platform lifting process are key control factors for the quality of shaft wall concrete construction.

[0007] Therefore, in order to solve the above technical problems, it is necessary to propose a shaft sliding synchronous lifting and lifting posture monitoring system. Summary of the Invention

[0008] The purpose of the present invention is to provide a shaft slipform synchronous lifting and lifting posture monitoring system, which comprehensively considers factors such as on-site implementation feasibility and installation convenience to ensure that the new shaft slipform device and system have simple structure, reliable performance and high usability.

[0009] To achieve the above object, the present invention provides the following technical solutions:

[0010] A shaft sliding mode synchronous lifting and lifting posture monitoring system, including

[0011] The sliding mode lifting displacement data acquisition unit includes a jack and a displacement sensor.

[0012] The sliding mode lifting angle data acquisition unit includes an inclination sensor,

[0013] Electrical control cabinet, used to collect displacement data from the displacement sensor and inclination data from the inclination sensor and upload them to the electrical control system;

[0014] The lifting posture monitoring module of the electrical control system analyzes the displacement data and inclination data, and performs jack lifting stroke monitoring and sliding platform inclination monitoring.

[0015] The jack adopts a through-type jack, and the displacement sensor adopts a pull-rod displacement sensor. The jack is fixed on the lifting frame of the sliding main platform, and the lifting rod passes through the middle of the jack. The through-type jack drives the sliding main platform to lift upward along the lifting rod through "oil inlet lifting and oil return reset".

[0016] The displacement sensor is connected and fixed to the jack through a connecting piece, wherein the displacement sensor body is connected and fixed to the outside of the jack cavity, wherein the displacement sensor extension rod is connected and fixed to the jack piston. When the jack piston displaces, the sensor rod fixed to the piston also displaces accordingly. The displacement information is converted into an electrical signal by the displacement sensor and output to the electrical control system.

[0017] The electrical control cabinet includes a cabinet body, a control panel, control buttons and an over-limit alarm light, and the control panel, control buttons and over-limit alarm light are all arranged on the cabinet body.

[0018] Three inclination sensors are installed at three non-collinear points on the plane where the shaft sliding platform is located. The data collected by the inclination sensors are uploaded to the electrical control system, and the posture monitoring module in the electrical control system analyzes the relevant data.

[0019] Each jack's oil circuit is equipped with a hydraulic solenoid valve, which is controlled by an electrical cabinet. The manager controls the "oil inlet-return" of each oil circuit by opening and closing each single hydraulic solenoid valve.

[0020] The steps for monitoring the jack lifting stroke are as follows:

[0021] Determine whether the lifting error is within the control range. If so, no adjustment action is taken. If not,

[0022] The control panel alarm displays the number of the over-limit jack and the over-limit value. According to the over-limit value, the control panel inputs the lifting error compensation value, which is fed back to the hydraulic control station by controlling the opening and closing of the hydraulic solenoid valve, thereby compensating the jack stroke.

[0023] The sliding platform inclination monitoring includes X-axis inclination monitoring, Y-axis inclination monitoring and Z-axis inclination monitoring. The X-axis inclination monitoring steps are as follows:

[0024] Determine whether the X-axis inclination error is within the range. If so, no operation is performed. If not, the control panel will alarm, the pitch angle of the sliding mold around the X-axis is out of limit, the jacks in the upper half of the sliding mold range, and the jacks in the lower half range are lifted with different strokes input from the control panel end. By controlling the opening and closing of the hydraulic solenoid valve, the feedback is sent to the hydraulic control station, and the jacks in different ranges are lifted symmetrically and differently.

[0025] The Y-axis inclination monitoring steps are as follows: determine whether the Y-axis inclination error is within the range. If so, no operation is performed. If not, the control panel alarms, the pitch angle of the sliding mold around the Y-axis exceeds the limit, the jacks in the left half of the sliding mold and the jacks in the right half are lifted by different strokes input from the control panel end. By controlling the opening and closing of the hydraulic solenoid valve, the feedback is sent to the hydraulic control station, and the jacks in different ranges are lifted symmetrically and differently.

[0026] The Z-axis inclination monitoring steps are as follows: determine whether the Z-axis inclination error is within the range. If so, no operation is performed. If not, the control panel alarms and the pitch angle of the sliding mode around the Z-axis exceeds the limit. According to the positive and negative values ​​of the torsion angle, the left or right half jack is selected, and the control panel inputs the gradual stroke lifting. By controlling the opening and closing of the hydraulic solenoid valve, the feedback is sent to the hydraulic control station, and the jacks are lifted differentially within a limited range.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] 1. Construction period: Eliminate the leveling process every 3.0m platform lift, the manual leveling calibration and mechanical limiter installation process every 300mm lift, the horizontal posture monitoring of the sliding platform, and the manual level pipe measurement process, thereby reducing the need for underground construction personnel and improving construction efficiency.

[0029] 2. Construction safety: High-precision sensors replace manual measurement to improve the accuracy and reliability of various data detection on the platform. The sliding formwork posture is monitored in real time 24 hours a day to ensure that the sliding formwork is centered and raised synchronously;

[0030] 3. Construction quality: The sliding formwork is centered and lifted synchronously, the verticality and flatness of the shaft wall concrete construction are guaranteed, and uninterrupted construction of the secondary lining of the shaft wall concrete is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a system architecture diagram of the present invention;

[0032] Figure 2 This is a diagram showing the fixing of the through-type jack and the pull-rod type displacement sensor of the present invention;

[0033] Figure 3 This is the wiring arrangement diagram of the jack, hydraulic solenoid valve, hydraulic oil pump, and electrical control cabinet of the present invention;

[0034] Figure 4This is the wiring arrangement diagram of the displacement sensor, hydraulic solenoid valve, hydraulic oil pump, and electrical control cabinet of the present invention;

[0035] Figure 5 This is the wiring arrangement diagram of the tilt sensor, hydraulic solenoid valve, hydraulic oil pump, and electrical control cabinet of the present invention;

[0036] Reference numerals in the figures: 1, jack; 2, lifting rod; 3, connecting piece; 4, displacement sensor; 5, lifting frame. DETAILED DESCRIPTION

[0037] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0038] The embodiments of the present invention are described in detail below with reference to the accompanying drawings. However, the present invention can be implemented in many different ways as defined and covered by the claims.

[0039] like Figure 1 Combined with Figures 2 to 5 As shown, a shaft sliding mode synchronous lifting and lifting posture monitoring system includes

[0040] The sliding mode lifting displacement data acquisition unit includes a jack 1 and a displacement sensor 4.

[0041] The sliding mode lifting angle data acquisition unit includes an inclination sensor,

[0042] Electrical control cabinet, used to collect displacement data from the displacement sensor and inclination data from the inclination sensor and upload them to the electrical control system;

[0043] The lifting posture monitoring module of the electrical control system analyzes the displacement data and inclination data, and performs jack lifting stroke monitoring and sliding platform inclination monitoring.

[0044] The jack 1 is a through-type jack, and the displacement sensor 4 is a pull-rod displacement sensor. The jack 1 is fixed on the lifting frame 5 of the sliding main platform, and the lifting rod 2 passes through the middle of the jack 1. The through-type jack drives the sliding main platform to lift upward along the lifting rod by "inlet oil to lift and return oil to reset".

[0045] The displacement sensor 4 is connected and fixed to the jack 1 through the connecting piece 3, wherein the main body of the displacement sensor 4 is connected and fixed to the outside of the jack cavity, wherein the extended pull rod of the displacement sensor is connected and fixed to the jack piston. When the piston of the jack 1 is displaced, the sensor pull rod fixed to the piston also displaces accordingly. The displacement information is converted into an electrical signal by the displacement sensor and output to the electrical control system.

[0046] The electrical control cabinet includes a cabinet body, a control panel, control buttons and an over-limit alarm light, and the control panel, control buttons and over-limit alarm light are all arranged on the cabinet body.

[0047] Three inclination sensors are installed at three non-collinear points on the plane where the shaft sliding platform is located. The data collected by the inclination sensors are uploaded to the electrical control system, and the posture monitoring module in the electrical control system analyzes the relevant data.

[0048] A hydraulic solenoid valve is installed on the oil circuit of each jack 1, and the hydraulic solenoid valve is controlled by the electrical cabinet. The management personnel controls the "oil inlet-oil return" of each oil circuit by opening and closing each single hydraulic solenoid valve.

[0049] The steps for monitoring the lifting stroke of jack 1 are as follows:

[0050] Determine whether the lifting error is within the control range. If so, no adjustment action is taken. If not,

[0051] The control panel alarm displays the number of the over-limit jack and the over-limit value. According to the over-limit value, the control panel inputs the lifting error compensation value, which is fed back to the hydraulic control station by controlling the opening and closing of the hydraulic solenoid valve, thereby compensating the jack stroke.

[0052] The sliding platform inclination monitoring includes X-axis inclination monitoring, Y-axis inclination monitoring and Z-axis inclination monitoring. The X-axis inclination monitoring steps are as follows:

[0053] Determine whether the X-axis inclination error is within the range. If so, no operation is performed. If not, the control panel will alarm, the pitch angle of the sliding mold around the X-axis is out of limit, the jacks in the upper half of the sliding mold range, and the jacks in the lower half range are lifted with different strokes input from the control panel end. By controlling the opening and closing of the hydraulic solenoid valve, the feedback is sent to the hydraulic control station, and the jacks in different ranges are lifted symmetrically and differently.

[0054] The Y-axis inclination monitoring steps are as follows: determine whether the Y-axis inclination error is within the range. If so, no operation is performed. If not, the control panel alarms, the pitch angle of the sliding mold around the Y-axis exceeds the limit, the jacks in the left half of the sliding mold and the jacks in the right half are lifted by different strokes input from the control panel end. By controlling the opening and closing of the hydraulic solenoid valve, the feedback is sent to the hydraulic control station, and the jacks in different ranges are lifted symmetrically and differently.

[0055] The Z-axis inclination monitoring steps are as follows: determine whether the Z-axis inclination error is within the range. If so, no operation is performed. If not, the control panel alarms and the pitch angle of the sliding mode around the Z-axis exceeds the limit. According to the positive and negative values ​​of the torsion angle, the left or right half jack is selected, and the control panel inputs the gradual stroke lifting. By controlling the opening and closing of the hydraulic solenoid valve, the feedback is sent to the hydraulic control station, and the jacks are lifted differentially within a limited range.

[0056] Compared with the prior art, the present invention has the following beneficial effects:

[0057] 1. Construction period: Eliminate the leveling process every 3.0m platform lift, the manual leveling calibration and mechanical limiter installation process every 300mm lift, the horizontal posture monitoring of the sliding platform, and the manual level pipe measurement process, thereby reducing the need for underground construction personnel and improving construction efficiency.

[0058] 2. Construction safety: High-precision sensors replace manual measurement to improve the accuracy and reliability of various data detection on the platform. The sliding formwork posture is monitored in real time 24 hours a day to ensure that the sliding formwork is centered and raised synchronously;

[0059] 3. Construction quality: The sliding formwork is centered and lifted synchronously, the verticality and flatness of the shaft wall concrete construction are guaranteed, and uninterrupted construction of the secondary lining of the shaft wall concrete is achieved.

[0060] The specific operating steps of a shaft sliding form synchronous lifting and lifting posture monitoring device and system are as follows:

[0061] Step 1, consistent with conventional sliding formwork platforms, the number of through-type jacks used in the sliding formwork of the present invention is determined based on the maximum bearing capacity of a single jack and the total weight of the shaft sliding formwork and taking into account the safety factor, and the number of pull-rod displacement sensors is consistent with the number of through-type jacks.

[0062] Step 2: The through-type jack is fixed on the lifting frame of the sliding form main platform, and the lifting rod passes through the middle of the jack. The through-type jack drives the sliding form main platform to lift upward along the lifting rod by "inlet oil to lift and return oil to reset".

[0063] Step 3: The displacement sensor is connected and fixed to the jack through a customized connector, wherein the displacement sensor body is connected and fixed to the outside of the through-type jack cavity, and the displacement sensor extension rod is connected and fixed to the through-type jack piston (such as Figure 2 shown).

[0064] Step 4: The number of hydraulic solenoid valves is consistent with the number of jacks. Each jack oil circuit is equipped with a hydraulic solenoid valve and is uniformly connected to the sliding mode hydraulic oil pump. The hydraulic oil pump is connected to the electrical control cabinet (such as Figure 3 shown);

[0065] Step 5: The three-axis inclination sensors are arranged at three non-collinear points on the sliding platform. The area formed by the connection between the three inclination sensors is controlled to be an equilateral triangle as much as possible, and the inclination sensors are uniformly connected to the electrical control cabinet (such as Figure 5 shown);

[0066] Step 6: The electrical control system is mainly divided into two modules: synchronous lifting and lifting posture monitoring. The module function software and control interface need to be customized and developed, and the electrical control system is integrated into the electrical control cabinet;

[0067] Step 7: The displacement sensor and the inclination sensor are uniformly connected to the electrical control cabinet. The jacking displacement data collected by the displacement sensor and the X, Y, and Z axis angle data collected by the inclination sensor are uploaded to the electrical control system, which processes and analyzes the relevant data.

[0068] Step 8: Implementation steps of synchronization improvement function module (refer to Figure 4 ):

[0069] (1) The maximum single stroke of the jack is 25mm, and the slide form is lifted 300mm each time. That is, to complete one slide form lifting stroke, the jack needs to complete 12 liftings;

[0070] (2) The single lifting stroke of the jack is recorded as hi (i = 1, 2, 3, ..., 12), the standard lifting height of the sliding formwork is recorded as H0 = 300 mm, and the cumulative lifting is N times (N = 1, 2, 3 ...), and the actual lifting height of the sliding formwork is Hi = h1 + h2 + ... + h12, (i = 1, 2, 3, ..., N);

[0071] (3) During the 25mm lifting process of the jack with a single stroke, the jack with a shorter oil circuit reaches 25mm first. The displacement sensor collects the corresponding data and feeds it back to the electrical control system. The electrical control system then sends a command to the hydraulic solenoid valve to control the oil circuit to close and stop supplying oil. The jack with a longer oil circuit reaches 25mm later. Oil is continuously supplied until it reaches 25mm, and the oil circuit is closed.

[0072] (4) Sliding mode single synchronous lifting and alarm: During the sliding mode 300mm single lifting process, the difference between H0 and Hi of each jack is compared, and the electrical control system sets the alarm threshold, for example, 5mm. When H0-

[0073] When Hi≥5mm, the over-limit warning light of the electrical control cabinet flashes, and the control panel displays the over-limit jack number and over-limit value. According to the over-limit jack number and over-limit value, the management personnel switch to manual lifting control, input the corresponding compensation displacement on the control panel, and press the corresponding numbered jack lifting button on the control cabinet to complete the over-limit jack stroke compensation action. For example: the over-limit alarm threshold is set to 10mm. In the fourth lifting of the sliding mode, the actual lifting height values ​​of jacks 3# and 6# are H3(3#)=285mm, H3(6#)=290mm. The difference with H0 is greater than the alarm threshold, then the control panel displays

[0074] "The 4th sliding mode lifting, 3# jack (overlimit 15mm), 6# jack (overlimit 10mm)", based on the above information, the management personnel pressed the "manual-automatic" switch button on the electrical control cabinet, switched to manual lifting, entered the compensation jacking stroke 15mm on the control panel, and pressed the 3# jack manual jacking button. The electrical control cabinet controlled the hydraulic oil pump, 3# jack oil circuit hydraulic solenoid valve, 3# jack displacement sensor to complete the 3# jack's overlimit stroke compensation jacking action, and the same was true for the 6# jack's overlimit stroke compensation jacking action.

[0075] (5) Sliding mode cumulative synchronization lifting and alarm: During the sliding mode cumulative N (N = 1, 2, 3...) times of 300mm lifting, the difference between each jack H = N × H0 and H' = H1 + H2 + H3 + ... + HN is compared, and the electrical control system sets the alarm threshold, for example 15mm. When H-H' ≥ 15mm, the over-limit warning light of the electrical control cabinet flashes, and the control panel displays the over-limit jack number and over-limit value. The manager switches to manual lifting control according to the number and limit value of the over-limit jack, enters the corresponding compensation displacement on the control panel, and presses the corresponding numbered jack lifting button on the control cabinet to complete the over-limit jack stroke compensation action. For example: the over-limit alarm threshold is set to 20mm. In the cumulative 3 sliding mode lifts, the actual lifting height value of the 4# jack is H'(4#)=285+290+295=870mm, and the difference with H=3×300=900mm is greater than the alarm threshold. The control panel displays "Cumulative 3 sliding mode lifts, 4# jack (over-limit 30mm)". According to the above information, the manager presses the "Manual-Automatic" switch button on the electrical control cabinet to switch to manual lifting, enters the compensation lifting stroke of 30mm on the control panel, and presses the manual lifting button of the 4# jack. The electrical control cabinet controls the hydraulic oil pump, the hydraulic solenoid valve of the 4# jack oil circuit, and the 4# jack displacement sensor to complete the 4# jack's over-limit stroke compensation lifting action.

[0076] Step 9: Steps to implement the posture monitoring function module (refer to Figure 5 ):

[0077] (1) The three-axis inclination sensor can monitor the angle changes of an object around the three directions of X, Y, and Z. For a vertical shaft sliding platform, the inclination changes around the X and Y axes are mainly manifested as changes in the platform plane angle, and the inclination changes around the Z axis are manifested as changes in the torsion angle of the platform plane.

[0078] (2) Early warning of horizontal lifting of the sliding platform: During the sliding platform lifting process, the inclination angle value α around the X axis and the inclination angle value β around the Y axis of the sliding platform are monitored in real time. The electrical control system sets an alarm threshold, such as ±2° (it is stipulated that the value is positive when the axis is rotated clockwise, and negative when the axis is rotated clockwise). When α or β ≥ ±2°, the over-limit warning light of the electrical control cabinet flashes, and the control panel displays the over-limit axis number and angle value. The management personnel switches to manual lifting control and performs symmetrical and differential lifting on the jacks in different ranges. For example, the over-limit alarm threshold is set to ±3°. During the sliding platform lifting process, the control panel displays "The inclination angle around the X axis is out of limit, α = 4°", that is, the lifting displacement of the lower jack is greater than that of the upper jack. The management personnel enter the lifting displacement value of "1# jack ~ 5# jack, 15# jack ~ 18# jack" on the control panel, starting from 10mm and showing a gradually decreasing gradient. The displacement value of 1# jack (10mm) is greater than that of 2#, 18# jack (8mm) is greater than that of 3#, 17# jack (6mm) is greater than that of 4#, 16# jack (4mm) is greater than that of 5#, 15# jack (2mm), and multiple small-stroke differential lifting is performed to prevent structural mutation. Similarly, the over-limit calibration of the Y-axis inclination value β is divided into the left half (1# jack ~ 9# jack) and the right half (10# jack ~ 18# jack), and symmetrical multiple small-stroke differential lifting is also adopted.

[0079] (3) Early warning of horizontal lifting of the sliding platform: During the sliding platform lifting process, the inclination angle γ of the sliding platform around the Z axis is monitored in real time, and the electrical control system sets an alarm threshold, such as ±2° (it is stipulated that the value is positive when the axis rotates clockwise, and negative when it rotates clockwise). When γ≥±2°, the over-limit warning light of the electrical control cabinet flashes, and the control panel displays the over-limit axis number and angle value. The manager switches to manual lifting control and performs symmetrical differential lifting on the jacks in different ranges. For example: the over-limit alarm threshold is set to ±3°. During the sliding platform lifting process, the control panel displays "the inclination angle around the Z axis exceeds the limit, γ=4°", which means that there is a lifting error between the jacks on the sliding platform circumference. The manager enters the lifting displacement value of "1# jack ~ 18# jack" on the control panel, which starts from 20mm and gradually decreases. The displacement value of 18# jack (10mm) decreases from 1# jack to 1# jack, and multiple small stroke differential lifting is performed to prevent structural mutation. Similarly, the over-limit calibration of the inclination angle β around the Y-axis is divided into the left half (1# jack to 9# jack) and the right half (10# jack to 18# jack), and multiple small-stroke differential jacking is also adopted.

[0080] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the internal parts of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0081] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A shaft sliding form synchronous lifting and lifting posture monitoring system, characterized by: include The sliding mode lifting displacement data acquisition unit includes a jack and a displacement sensor. The sliding mode lifting angle data acquisition unit includes an inclination sensor, Electrical control cabinet, used to collect displacement data from the displacement sensor and inclination data from the inclination sensor and upload them to the electrical control system; The lifting posture monitoring module of the electrical control system analyzes the displacement data and inclination data, and performs jack lifting stroke monitoring and sliding platform inclination monitoring.

2. A shaft sliding form synchronous lifting and lifting posture monitoring system according to claim 1, characterized in that: The jack adopts a through-type jack, and the displacement sensor adopts a pull-rod displacement sensor. The jack is fixed on the lifting frame of the sliding main platform, and the lifting rod passes through the middle of the jack. The through-type jack drives the sliding main platform to lift upward along the lifting rod by "inlet oil to lift and return oil to reset".

3. The shaft sliding form synchronous lifting and lifting posture monitoring system according to claim 1, characterized in that: The displacement sensor is connected and fixed to the jack through a connecting piece, wherein the displacement sensor body is connected and fixed to the outside of the jack cavity, wherein the displacement sensor extension rod is connected and fixed to the jack piston. When the jack piston displaces, the sensor rod fixed to the piston also displaces accordingly. The displacement information is converted into an electrical signal by the displacement sensor and output to the electrical control system.

4. The shaft sliding form synchronous lifting and lifting posture monitoring system according to claim 1, characterized in that: The electrical control cabinet includes a cabinet body, a control panel, control buttons and an over-limit alarm light, and the control panel, control buttons and over-limit alarm light are all arranged on the cabinet body.

5. The shaft sliding form synchronous lifting and lifting posture monitoring system according to claim 1, characterized in that: Three inclination sensors are installed at three non-collinear points on the plane where the shaft sliding platform is located. The data collected by the inclination sensors are uploaded to the electrical control system, and the posture monitoring module in the electrical control system analyzes the relevant data.

6. The shaft sliding form synchronous lifting and lifting posture monitoring system according to claim 1, characterized in that: Each jack's oil circuit is equipped with a hydraulic solenoid valve, which is controlled by an electrical cabinet. The manager controls the "oil inlet-return" of each oil circuit by opening and closing each single hydraulic solenoid valve.

7. The shaft sliding form synchronous lifting and lifting posture monitoring system according to claim 1, characterized in that: The steps for monitoring the jack lifting stroke are as follows: Determine whether the lifting error is within the control range. If so, no adjustment action will be taken. If not, an alarm will be issued through the control panel, displaying the number of the over-limit jack and the over-limit value. According to the over-limit value, the lifting error compensation value is input into the control panel end, and the hydraulic solenoid valve is controlled to open and close, and the feedback is fed back to the hydraulic control station to compensate for the jack stroke.

8. The shaft sliding form synchronous lifting and lifting posture monitoring system according to claim 1, characterized in that: The sliding platform inclination monitoring includes X-axis inclination monitoring, Y-axis inclination monitoring and Z-axis inclination monitoring. The X-axis inclination monitoring steps are as follows: Determine whether the X-axis inclination error is within the range. If so, no operation is performed. If not, the control panel will alarm, the pitch angle of the sliding mold around the X-axis is out of limit, the jacks in the upper half of the sliding mold range, and the jacks in the lower half range are lifted with different strokes input from the control panel end. By controlling the opening and closing of the hydraulic solenoid valve, the feedback is sent to the hydraulic control station, and the jacks in different ranges are lifted symmetrically and differently.

9. The shaft sliding form synchronous lifting and lifting posture monitoring system according to claim 1, characterized in that: The steps for monitoring the Y-axis inclination are as follows: Determine whether the Y-axis inclination error is within the range. If so, no operation is performed. If not, the control panel will alarm, the pitch angle of the sliding mold around the Y-axis is out of limit, the jacks in the left half of the sliding mold and the jacks in the right half are lifted by different strokes input from the control panel end. By controlling the opening and closing of the hydraulic solenoid valve and feeding back to the hydraulic control station, the jacks in different ranges are lifted symmetrically and differently.

10. The shaft sliding form synchronous lifting and lifting posture monitoring system according to claim 1, characterized in that: The Z-axis inclination monitoring steps are as follows: Determine whether the Z-axis inclination error is within the range. If so, no operation is performed. If not, the control panel will alarm and the pitch angle of the sliding mode around the Z-axis is out of limit. According to the positive and negative values ​​of the torsion angle, the left or right half jack is selected, and the control panel inputs the gradual stroke lifting. By controlling the opening and closing of the hydraulic solenoid valve, feedback is given to the hydraulic control station, and the jacks are lifted differentially within a limited range.

Images