Device foot loosening monitoring correction apparatus and method based on diagonal vibration summation

Abstract

The present application belongs to the technical field of industrial equipment foundation stability maintenance, and discloses a device foot loosening monitoring correction device and method based on diagonal vibration summation, which comprises a diagonal vibration monitoring unit, used for sending the vibration effective value of each foot collected to a suspension judgment unit; a foot parameter storage unit, used for pre-storing the diagonal grouping relationship, vibration and reference value, preset relaxation torque and rated tightening torque; a suspension judgment unit, used for receiving the vibration effective value of the corresponding foot, determining the suspended foot through diagonal vibration summation comparison logic, and sending a correction execution instruction; and a cooperative correction execution unit, used for receiving the correction execution instruction, controlling the suspended foot and the bolt tightening component of the corresponding diagonal foot of the suspended foot to perform corresponding operations. The present application has high automation degree, can realize the detection and maintenance of foot bolt tightening without equipping point inspection personnel to supervise the tightening process of the foot bolt throughout the process, and is suitable for continuous production scenes.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of industrial equipment foundation stability maintenance, and relates to a device and method for monitoring and correcting loosening of equipment feet based on summation of diagonal vibrations. BACKGROUND

[0002] In the long-term operation process of four-point support equipment (such as machine tools, compressors, large pump sets, etc.), due to the influence of factors such as alternating load, vibration impact and foundation settlement, the foot bolts are prone to loosening, which causes a gap between a single or multiple feet and the support surface and forms a suspended state. This suspension problem can destroy the "four-point coplanar" support stability of the equipment base, causing abnormal noise during equipment operation, drift of machining precision, accelerated wear of transmission components, and even serious consequences such as damage to the equipment structure.

[0003] Currently, the technical solutions for foot loosening mainly include two categories: one is the determination method based on single sensor monitoring, such as the Chinese invention patent with the authorization announcement number CN107363523B, which discloses a hydraulic wrench tightening device, which can only realize the general tightening function of the bolt, but lacks a precise identification mechanism for the suspended state; the second is the traditional vibration monitoring scheme, which usually only relies on the threshold value of a single foot vibration value, and fails to fully consider the dynamic correlation characteristics between the diagonal feet in the four-point support system. Since the vibrations of each part are coupled with each other during equipment operation, a single vibration parameter cannot accurately reflect the suspended state, and misjudgment is easy to occur. For example, when an abnormal vibration occurs in a diagonal group due to foot suspension, the adjacent feet will also be affected by the conduction, resulting in low reliability of the judgment logic based on a single vibration value.

[0004] Therefore, it is urgent to develop a device and method that can accurately identify the position of the suspended foot and implement targeted and collaborative correction, in order to solve the problems of poor identification accuracy, low correction efficiency and insufficient operation collaboration in the prior art. SUMMARY

[0005] The purpose of the present application is to provide a device for monitoring and correcting loosening of equipment feet based on summation of diagonal vibrations, which can accurately identify the suspended foot and implement targeted and collaborative correction of the suspended foot, thereby reducing labor cost and management cost.

[0006] Another purpose of the present application is to provide a method for monitoring and correcting loosening of equipment feet based on summation of diagonal vibrations.

[0007] To achieve the above purposes, the technical solutions adopted by the present application are as follows:

[0008] The application discloses a device foot looseness monitoring correction device based on diagonal vibration summation, which comprises a diagonal vibration monitoring unit, a diagonal vibration monitoring unit comprising four vibration collectors, which are respectively installed on the upper support end surface of the four feet of a device base, and are used for collecting the vertical vibration effective value of each corresponding foot; and further comprises:

[0009] A foot parameter storage unit pre-stores the diagonal grouping relationship of the four feet, vibration reference values, preset relaxation torques and rated tightening torques;

[0010] A hanging judgment unit, which is electrically connected with the diagonal vibration monitoring unit and the foot parameter storage unit, is used for judging the hanging foot through diagonal vibration summation comparison logic according to the diagonal grouping relationship of the four feet, vibration reference values, preset relaxation torques, rated tightening torques and the collected vibration effective value, and generating a correction execution instruction;

[0011] A cooperative correction execution unit, which is electrically connected with the hanging judgment unit, comprises a bolt loosening and tightening assembly and a jack-up assembly corresponding to the four feet, and is used for responding to the correction execution instruction and performing cooperative correction operation on the hanging foot and the diagonal foot thereof.

[0012] As a limitation, in the foot parameter storage unit, the diagonal grouping relationship of the four feet comprises that the first foot and the third foot form a first diagonal group, and the second foot and the fourth foot form a second diagonal group;

[0013] The hanging judgment unit is electrically connected with the diagonal vibration monitoring unit and the foot parameter storage unit, adopts an embedded processor and internally embeds diagonal vibration summation comparison logic, the embedded processor is used for calling the diagonal grouping relationship of the four feet, vibration reference values, preset relaxation torques and rated tightening torques in the foot parameter storage unit, and after receiving the vibration effective value of the corresponding foot in the vertical direction collected by each vibration collector in real time, the vibration sum of the two diagonal groups is calculated through the diagonal vibration summation comparison logic according to the diagonal grouping relationship of the four feet, the size of the vibration sum is compared, the hanging foot is judged according to the comparison result, and the correction execution instruction is sent to the cooperative correction execution unit according to the judged hanging foot;

[0014] The cooperative correction execution unit is electrically connected with the hanging judgment unit and comprises a bolt tensioning assembly corresponding to each of the four anchor bases and a jacking assembly; after receiving a correction execution instruction from the hanging judgment unit, the cooperative correction execution unit controls the bolt tensioning assembly corresponding to the hanging anchor base to be started, loosens the anchor bolt of the hanging anchor base to a preset loose torque and feeds back to the hanging judgment unit, then controls the bolt tensioning assembly corresponding to the diagonal anchor base of the hanging anchor base to be started, tightens the anchor bolt of the diagonal anchor base to a rated tightening torque and feeds back to the hanging judgment unit; then the jacking assembly corresponding to the hanging anchor base is started, the hanging anchor base is jacked upward, and at the same time, the vibration collector continuously collects the vertical vibration effective value of the hanging anchor base and sends it to the hanging judgment unit; when the vibration effective value is reduced to within the vibration reference value, the jacking assembly is controlled to stop working; after the jacking action is completed, the bolt tensioning assembly corresponding to the hanging anchor base is started again, the anchor bolt of the hanging anchor base is tightened to the rated tightening torque and fed back to the hanging judgment unit.

[0015] As a further limitation, the diagonal vibration sum comparison logic calculates the vibration sums of the two diagonal groups respectively, compares the sizes of the vibration sums, and determines the hanging anchor base according to the comparison result, specifically including:

[0016] The diagonal vibration sum comparison logic calculates the vibration sums of the two diagonal groups respectively, obtains the vibration sum A1 of the first diagonal group and the vibration sum A2 of the second diagonal group, and compares the sizes of the vibration sums A1 and A2;

[0017] If A1>A2, the first diagonal group is the high-vibration group, and the vibration effective values of the first anchor base and the third anchor base in the vertical direction are compared, and the anchor base with the larger vibration effective value is determined as the hanging anchor base;

[0018] If A2>A1, the second diagonal group is the high-vibration group, and the vibration effective values of the second anchor base and the fourth anchor base in the vertical direction are compared, and the anchor base with the larger vibration effective value is determined as the hanging anchor base.

[0019] As a second limitation, the bolt tensioning assembly comprises a motor, a bracket, a torque sensor and a socket wrench;

[0020] The socket wrench is located directly above the anchor bolt of the corresponding anchor base, the socket wrench is fitted on the anchor bolt, and the inner cavity of the socket wrench matches the shape and size of the anchor bolt;

[0021] The motor is fixedly installed on the equipment base through the bracket, the rotating shaft of the motor is vertically downward, and the rotating shaft of the motor is fixedly connected with the middle part of the fixed end of the socket wrench through a shaft coupling, the torque sensor is fixedly installed on the rotating shaft, and the rotating shaft of the motor, the socket wrench and the center line of the anchor bolt of the corresponding anchor base are coincident;

[0022] The motor and the torque sensor are electrically connected with the hanging judgment unit.

[0023] As a further limitation, the torque sensor range is 0-500 N·m, and the tension accuracy is ±1 N·m.

[0024] As a third limitation, the bolt tensioning assembly includes a motor, a support, a helical gear, an output shaft, a torque sensor, and a socket wrench.

[0025] The socket wrench is located directly above the corresponding foundation bolt, the socket wrench fits the foundation bolt, and the inner cavity of the socket wrench matches the shape and size of the foundation bolt.

[0026] The motor is fixed on the equipment base through the support, and the rotating shaft of the motor is horizontally arranged towards the corresponding foundation bolt; the rotating shaft of the motor is drivingly connected with the output shaft through the helical gear, and the output shaft is perpendicular to the rotating shaft of the motor, so that the driving direction of the rotating shaft of the motor is changed to vertical rotation.

[0027] The other end of the output shaft is fixedly connected with the middle part of the fixed end of the socket wrench through a shaft coupling, and the torque sensor is fixedly installed on the rotating shaft, and the output shaft, the socket wrench and the center line of the corresponding foundation bolt coincide.

[0028] The motor and the torque sensor are electrically connected with the suspension judgment unit.

[0029] As a fourth limitation, the jacking assembly includes a hydraulic drive cylinder, a displacement encoder, and a jacking pad.

[0030] The hydraulic drive cylinder is fixed on the equipment base through the support plate, the extension end of the hydraulic drive cylinder is vertically downward, the jacking pad is fixedly arranged at the end of the extension end of the hydraulic drive cylinder, and the extension end of the hydraulic drive cylinder passes through the through hole on the equipment base and the foundation base below the equipment base, and the jacking pad abuts against the pad iron.

[0031] The displacement encoder is installed on the rotating shaft of the hydraulic drive cylinder, and the hydraulic drive cylinder and the displacement encoder are electrically connected with the suspension judgment unit.

[0032] As a fifth limitation, the vibration collector adopts a capacitive vibration sensor, and the sampling frequency is ≥1 kHz.

[0033] The embedded processor adopts an STM32H743 embedded processor.

[0034] The vibration reference value is 1.5-3.0 mm / s.

[0035] The preset relaxation torque is 3-8 N·m.

[0036] The rated tightening torque is 100-500 N·m.

[0037] The application also provides a device foundation loosening monitoring correction method based on diagonal vibration summation.

[0038] S1, real-time collection of the vibration effective value of each corresponding foundation in the vertical direction by four vibration collectors included in the diagonal vibration monitoring unit;

[0039] S2, the suspension judgment unit is electrically connected with the diagonal vibration monitoring unit and the foundation parameter storage unit, determines the suspended foundation by the diagonal vibration summation comparison logic according to the diagonal grouping relationship of the four foundations, the vibration reference value, the preset loosening torque, the rated tightening torque and the collected vibration effective value, and sends a correction execution instruction to the cooperative correction execution unit according to the determined suspended foundation;

[0040] S3, after receiving the correction execution instruction, the cooperative correction execution unit controls the bolt loosening assembly and the jack-up assembly corresponding to the four foundations to respond to the correction execution instruction, and performs a cooperative correction operation on the suspended foundation and the diagonal foundation.

[0041] As a limitation, the specific process of step S2 is as follows:

[0042] The suspension judgment unit calls the diagonal grouping relationship of the four foundations and the vibration reference value, the preset loosening torque and the rated tightening torque in the foundation parameter storage unit through the embedded processor, and after receiving the vibration effective value of the corresponding foundation in the vertical direction collected by each vibration collector in real time, calculates the vibration sum of the two diagonal groups respectively according to the diagonal grouping relationship of the four foundations through the diagonal vibration summation comparison logic, compares the size of the vibration sum, determines the suspended foundation according to the comparison result, and sends a correction execution instruction to the cooperative correction execution unit according to the determined suspended foundation;

[0043] The specific process of step S3 is as follows:

[0044] After receiving the correction execution instruction, the cooperative correction execution unit controls the bolt loosening assembly corresponding to the suspended foundation to start, loosens the foundation bolt of the suspended foundation to the preset loosening torque and feeds back to the suspension judgment unit, then controls the bolt loosening assembly corresponding to the diagonal foundation of the suspended foundation to start, tightens the foundation bolt of the diagonal foundation to the rated tightening torque and feeds back to the suspension judgment unit, then starts the jack-up assembly corresponding to the suspended foundation, lifts the suspended foundation upward, at the same time the vibration collector continuously collects the vibration effective value of the suspended foundation in the vertical direction and sends it to the suspension judgment unit, when the vibration effective value drops within the vibration reference value, controls the jack-up assembly to stop; after the lifting action is completed, the bolt loosening assembly corresponding to the suspended foundation is started again, the foundation bolt of the suspended foundation is tightened to the rated tightening torque and fed back to the suspension judgment unit;

[0045] In step S2, the diagonal vibration summation comparison logic is used to calculate the vibration sums of the two diagonal groups respectively, compare the vibration sums, and determine the suspended foot according to the comparison result, specifically including:

[0046] The diagonal vibration summation comparison logic is used to calculate the vibration sums of the two diagonal groups respectively, and the vibration sum of the first diagonal group is A1, and the vibration sum of the second diagonal group is A2, and the vibration sums A1 and A2 are compared.

[0047] If A1>A2, the first diagonal group is the high vibration group, and the vibration effective values of the first foot and the third foot in the vertical direction are compared, and the foot with the larger vibration effective value is determined as the suspended foot.

[0048] If A2>A1, the second diagonal group is the high vibration group, and the vibration effective values of the second foot and the fourth foot in the vertical direction are compared, and the foot with the larger vibration effective value is determined as the suspended foot.

[0049] The present application adopts the above technical scheme, compared with the prior art, the technical progress obtained is that:

[0050] (1) The present application includes a diagonal vibration monitoring unit, a foot parameter storage unit, a suspended judgment unit and a cooperative correction execution unit; wherein the diagonal vibration monitoring unit includes four vibration collectors, which are used to send the vibration effective values of the corresponding feet in the vertical direction collected in real time to the suspended judgment unit; the foot parameter storage unit pre-stores the diagonal grouping relationship and vibration reference value of the four feet, the preset relaxation torque and the rated tightening torque; the suspended judgment unit is used to call the diagonal grouping relationship and vibration reference value of the four feet in the foot parameter storage unit, the preset relaxation torque and the rated tightening torque, and to locate the suspended foot by using the diagonal correlation of the four-point support through the original "diagonal vibration summation comparison" logic, with an identification accuracy of ≥98%, avoiding the misjudgment problem of single vibration value judgment; the cooperative correction execution unit is used to perform corresponding operations on the foot bolts of the suspended foot and the foot bolts of the diagonal foot according to the correction execution instruction sent by the suspended judgment unit;

[0051] (2) The execution mechanism of the present application has strong adaptability, the bolt tensioning assembly of the cooperative correction execution unit can feedback torque through a torque sensor, can adapt to different specifications of foot bolts, and the correction accuracy is 0.001mm;

[0052] (3) The present application has high automation degree, and the whole process from vibration collection, suspended judgment to correction execution is automatically completed without manual intervention, which is suitable for continuous production scenes and reduces the equipment downtime maintenance time by ≥60%.

[0053] (4) The application can realize the detection and maintenance of the fastening of the anchor bolt without the supervision of the point inspection personnel throughout the fastening process of the anchor bolt, reduces the labor cost and management cost, does not affect the normal production of the equipment, and can eliminate hidden troubles and avoid the damage of the equipment.

[0054] In summary, the application has high automation degree, can realize the detection and maintenance of the fastening of the anchor bolt without the supervision of the point inspection personnel throughout the fastening process of the anchor bolt, and is suitable for continuous production scenes. BRIEF DESCRIPTION OF DRAWINGS

[0055] Figure 1 Fig. 1 shows the structural schematic diagram of the equipment base in the embodiment 1 of the application;

[0056] Figure 2 Fig. 2 shows the structural block diagram of the equipment anchor loosening monitoring correction device based on diagonal vibration summation in the embodiment 1 of the application;

[0057] Figure 3 Fig. 3 shows the structural schematic diagram of the vibration collector on the equipment base in the embodiment 1 of the application;

[0058] Figure 4 Fig. 4 shows the structural schematic diagram of the bolt tightness assembly in the embodiment 1 of the application;

[0059] Figure 5 Fig. 5 shows the structural schematic diagram of the bolt tightness assembly and the jacking assembly of the top screw on the equipment base in the embodiment 1 of the application;

[0060] Figure 6 Fig. 6 shows another structural schematic diagram of the bolt tightness assembly in the embodiment 1 of the application;

[0061] Figure 7 Fig. 7 shows the structural schematic diagram of the jacking assembly of the top screw in the embodiment 1 of the application.

[0062] In the figure: 1, equipment base; 2, anchor; 3, anchor bolt; 4, base base; 5, iron pad; 6, vibration collector; 7, motor; 8, support; 9, torque sensor; 10, sleeve wrench; 11, support; 12, helical gear; 13, output shaft; 14, hydraulic drive cylinder; 15, displacement encoder; 16, pushing pad; 17, support plate. DETAILED DESCRIPTION

[0063] In order to better explain the application, the following will be described in detail by combining the specific embodiments with the accompanying drawings. EMBODIMENT

[0064] The embodiment is a device foot looseness monitoring correction device based on diagonal vibration summation, which is suitable for a device base 1 adopting four feet 2, is used for supporting devices such as machine tools, compressors, large pump groups and the like, wherein a foundation base 4 is arranged below the device base 1, the four feet 2 are fixed on the supporting ground through reserved holes in the device base 1 and the foundation base 4 to realize support, and an iron pad 5 is arranged between the foundation base 4 and the supporting ground to realize leveling. Figure 1 As shown in a structural schematic view of the device base 1, in the view, the four corners of the device base 1 are fixedly connected with the supporting ground through the four feet 2, and a foot bolt 3 is connected to the corresponding foot 2.

[0065] As shown in the view, the device foot looseness monitoring correction device based on diagonal vibration summation of the embodiment comprises: Figure 2

[0066] A diagonal vibration monitoring unit comprises four high-precision vibration collectors 6, the four vibration collectors 6 are respectively installed on the upper supporting end faces of the four feet 2 of the device base 1, as shown in the view, the four vibration collectors 6 are electrically connected with the suspension judgment unit, and are used for sending the vibration effective values of the respective feet 2 in the vertical direction collected in real time to the suspension judgment unit. Figure 3

[0067] When the vibration collector 6 is installed on the upper supporting end face of the foot 2, a groove can be formed on the upper supporting end face of the foot 2, and the vibration collector 6 is inserted in the groove and fixed. The vibration collector 6 adopts a capacitive vibration sensor, and the sampling frequency is greater than or equal to 1 kHz.

[0068] A foot parameter storage unit pre-stores the diagonal grouping relationship of the four feet 2 and vibration reference values, pre-set relaxation torques and rated tightening torques, and provides a basis for judging the suspended foot, and the foot parameter storage unit is electrically connected with the suspension judgment unit; the diagonal grouping relationship of the four feet 2 comprises that the first foot and the third foot form a first diagonal group, and the second foot and the fourth foot form a second diagonal group.

[0069] The vibration reference value is 1.5-3.0 mm / s, the pre-set relaxation torque is 3-8 N·m, and the rated tightening torque is 100-500 N·m.

[0070] ​​The overhanging judgment unit adopts an embedded processor and a built-in diagonal vibration summation comparison logic, the embedded processor is used to call the diagonal grouping relationship of four anchorages 2 and the vibration reference value, the preset relaxation torque and the rated tightening torque in the anchor parameter storage unit, and after receiving the vibration effective value of the corresponding anchorage 2 in the vertical direction collected by each vibration collector 6 in real time, the vibration sum of the two diagonal groups is calculated respectively according to the diagonal grouping relationship of the four anchorages 2 through the diagonal vibration summation comparison logic, the size of the vibration sum is compared, the overhanging anchorage is judged according to the comparison result, and the correction execution instruction is sent to the cooperative correction execution unit according to the judged overhanging anchorage.

[0071] The embedded processor adopts an STM32H743 embedded processor.

[0072] The vibration sum of the two diagonal groups is calculated respectively through the diagonal vibration summation comparison logic, the size of the vibration sum is compared, the overhanging anchorage is judged according to the comparison result, and the correction execution instruction is sent to the cooperative correction execution unit according to the judged overhanging anchorage.

[0073] The vibration sum of the two diagonal groups is calculated respectively through the diagonal vibration summation comparison logic, the size of the vibration sum is compared, the overhanging anchorage is judged according to the comparison result, and the correction execution instruction is sent to the cooperative correction execution unit according to the judged overhanging anchorage.

[0074] If A1>A2, the first diagonal group is a high vibration group, the vibration effective values of the first anchorage and the third anchorage in the vertical direction are compared, and the anchorage 2 with the larger vibration effective value is determined as the overhanging anchorage.

[0075] If A2>A1, the second diagonal group is a high vibration group, the vibration effective values of the second anchorage and the fourth anchorage in the vertical direction are compared, and the anchorage 2 with the larger vibration effective value is determined as the overhanging anchorage.

[0076] The cooperative correction execution unit comprises a bolt tensioning assembly corresponding to each of the four foundation bolts 3 of the foundation 2 and a jacking assembly. After receiving the correction execution instruction from the hanging judgment unit, the cooperative correction execution unit controls the bolt tensioning assembly corresponding to the hanging foundation to loosen the foundation bolt 3 of the hanging foundation to a preset loose torque and feeds back to the hanging judgment unit, and then controls the bolt tensioning assembly corresponding to the diagonal foundation corresponding to the hanging foundation to start, and tightens the foundation bolt 3 of the diagonal foundation to the rated tightening torque and feeds back to the hanging judgment unit. Then, the jacking assembly corresponding to the hanging foundation is started, and the hanging foundation is jacked up, while the vibration collector 6 continuously collects the vertical vibration effective value of the hanging foundation and sends it to the hanging judgment unit. When the vibration effective value is reduced to within the vibration reference value, the jacking assembly is controlled to stop. After the jacking action is completed, the bolt tensioning assembly corresponding to the hanging foundation is started again, and the foundation bolt 3 of the hanging foundation is tightened to the rated tightening torque and fed back to the hanging judgment unit.

[0077] As shown in Figure 4 and Figure 5 , the bolt tensioning assembly comprises a motor 7, a bracket 8, a torque sensor 9 and a sleeve wrench 10. The sleeve wrench 10 is located directly above the foundation bolt 3 of the corresponding foundation 2, the sleeve wrench 10 is sleeved on the foundation bolt 3, the inner cavity of the sleeve wrench 10 matches the shape and size of the foundation bolt 3, and the height of the inner cavity of the sleeve wrench 10 is greater than the distance from the vibration collector 6 to the equipment base 1. The motor 7 is fixedly installed on the equipment base 1 through the bracket 8, the rotating shaft of the motor 7 is vertically downward, and the rotating shaft of the motor 7 is fixedly connected with the middle part of the fixed end of the sleeve wrench 10 through a shaft coupling. The torque sensor 9 is fixedly installed on the rotating shaft of the motor 7. The rotating shaft of the motor 7, the sleeve wrench 10 and the center line of the foundation bolt 3 of the corresponding foundation 2 are coincident. The motor 7 and the torque sensor 9 are electrically connected with the hanging judgment unit.

[0078] The motor 7 can adopt a servo motor with a model number of 110AE220-06. The torque sensor 9 has a range of 0-500 N·m and a tensioning accuracy of ±1 N·m. The range of the torque sensor 9 is used to feed back the torque of the screwing to the hanging judgment unit in real time, so as to realize the accurate tensioning of the foundation bolt 3.

[0079] As shown in Figure 6As shown, in this embodiment, the bolt tightening assembly can also adopt another structure. The bolt tightening assembly includes a motor 7, a support 11, a helical gear 12, an output shaft 13, a torque sensor 9, and a socket wrench 10. The socket wrench 10 is located directly above the anchor bolt 3 of the corresponding foot 2. The socket wrench 10 fits onto the anchor bolt 3. The inner cavity of the socket wrench 10 matches the shape and size of the anchor bolt 3, and the height of the inner cavity of the socket wrench 10 is greater than the distance from the vibration collector 6 to the equipment base 1. The motor 7 is fixed to the equipment base 1 via the support 11. The rotation shaft of the motor 7 is horizontally oriented towards the corresponding anchor bolt 3. The rotation shaft of the motor 7 is connected to the output shaft 13 via the helical gear 12. The output shaft 13 is perpendicular to the rotation shaft of the motor 7, so that the rotation direction of the motor 7 is changed to vertical rotation. The other end of the output shaft 13 is fixedly connected to the middle of the fixed end of the socket wrench 10 via a coupling. The torque sensor 9 is fixedly installed on the output shaft 13 (torque sensor 9). Figure 6 (Not shown in the diagram), the center lines of the output shaft 13, the socket wrench 10, and the anchor bolt 3 of the corresponding foot 2 are aligned; the motor 7 and the torque sensor 9 are electrically connected to the suspension judgment unit. The torque sensor 9 has a range of 0-500 N·m and a tightness accuracy of ±1 N·m.

[0080] like Figure 7 As shown, the top screw lifting assembly includes a hydraulic drive cylinder 14, a displacement encoder 15, and a push pad 16. The hydraulic drive cylinder 14 is fixed to the equipment base 1 by a support plate 17. The extended end of the hydraulic drive cylinder 14 is vertically downward. The end of the extended end of the hydraulic drive cylinder 14 is fixed with a push pad 16. The extended end of the hydraulic drive cylinder 14 passes through the through hole on the equipment base 1 and the foundation base 4 below the equipment base 1, and abuts against the pad 5 through the push pad 16. The displacement encoder 15 is installed on the rotating shaft of the hydraulic drive cylinder 14. Both the hydraulic drive cylinder 14 and the displacement encoder 15 are electrically connected to the suspension judgment unit. Example

[0081] This embodiment is a method for monitoring and correcting equipment anchor looseness based on diagonal vibration summation. It is implemented using the equipment anchor looseness monitoring and correction device based on diagonal vibration summation from Embodiment 1, and includes the following steps:

[0082] S1. The diagonal vibration monitoring unit includes four vibration acquisition devices 6, which collect the effective vibration values ​​of each corresponding foot 2 in the vertical direction in real time and send them to the suspension judgment unit.

[0083] S2, the suspended judgment unit calls the diagonal grouping relationship of the four anchor bolts 2 and the vibration reference value, the preset relaxation torque and the rated tightening torque in the anchor bolt parameter storage unit through the embedded processor, and after receiving the real-time collection of the vibration effective value of the corresponding anchor bolt 2 in the vertical direction by each vibration collector 6, the vibration sum of the two diagonal groups is calculated respectively according to the diagonal grouping relationship of the four anchor bolts 2 through the diagonal vibration summation comparison logic, the size of the vibration sum is compared, the suspended anchor bolt is determined according to the comparison result, and the correction execution instruction is sent to the cooperative correction execution unit according to the determined suspended anchor bolt;

[0084] S3, after receiving the correction execution instruction, the cooperative correction execution unit controls the motor 7 of the bolt tensioning assembly corresponding to the suspended anchor bolt to start, loosens the anchor bolt 3 of the suspended anchor bolt to the preset relaxation torque and feeds back to the suspended judgment unit, and then controls the motor 7 of the bolt tensioning assembly corresponding to the diagonal anchor bolt of the suspended anchor bolt to start, tightens the anchor bolt 3 of the diagonal anchor bolt to the rated tightening torque and feeds back to the suspended judgment unit; then start the hydraulic drive cylinder 14 of the jack-up assembly corresponding to the suspended anchor bolt, and lift the suspended anchor bolt upward, while the vibration collector 6 continuously collects the vibration effective value of the suspended anchor bolt in the vertical direction and sends it to the suspended judgment unit, when the vibration effective value drops within the vibration reference value, control the hydraulic drive cylinder 14 of the jack-up assembly to stop action, while the displacement encoder 15 feeds back the lifting height in real time; after the lifting action is completed, the motor 7 of the bolt tensioning assembly corresponding to the suspended anchor bolt is started again, the anchor bolt 3 of the suspended anchor bolt is tightened to the rated tightening torque and fed back to the suspended judgment unit.

[0085] In order to prove the effect of the embodiment, the embodiment takes a certain large numerical control lathe as an example for verification, wherein the large numerical control lathe adopts four-point support on the equipment base 1, that is, fixed with the ground through four anchor bolts 2 and anchor bolts 3, wherein the first anchor bolt and the third anchor bolt form a first diagonal group, and the second anchor bolt and the fourth anchor bolt form a second diagonal group. The specific implementation is as follows:

[0086] (1) Device installation:

[0087] Capacitive vibration sensors are installed on the upper support end face of the four anchor bolts 2, the model of the capacitive vibration sensor is Kistler 8772A, and the capacitive vibration sensor is connected to the STM32H743 embedded processor through a shielded cable; the sleeve wrench 10 in the bolt tensioning assembly of the cooperative correction execution unit is matched with the anchor bolt 3 (M24 bolt), the diagonal grouping relationship of the four anchor bolts 2, that is, the first anchor bolt and the third anchor bolt form a first diagonal group, and the second anchor bolt and the fourth anchor bolt form a second diagonal group, and the vibration reference value is 2.5mm / s, the preset relaxation torque is 5N·m, and the rated tightening torque is 220N·m are pre-stored in the anchor bolt parameter storage unit.

[0088] (2) Monitoring and correction process:

[0089] When the large numerical control lathe is running, the four capacitive vibration sensors collect the vibration effective values of the respective footings 2 in the vertical direction in real time, obtaining the vibration effective value V1 = 3.8 mm / s of the first footing, the vibration effective value V2 = 1.2 mm / s of the second footing, the vibration effective value V3 = 1.5 mm / s of the third footing, and the vibration effective value V4 = 1.1 mm / s of the fourth footing.

[0090] After the embedded processor in the suspension judgment unit receives the vibration effective values of the respective footings 2 in the vertical direction collected by the vibration collectors 6 in real time, according to the diagonal grouping relationship of the four footings 2, the vibration sums of the two diagonal groups are calculated respectively through the diagonal vibration sum comparison logic, obtaining the vibration sum A1 = 3.8 + 1.5 = 5.3 mm / s of the first diagonal group and the vibration sum A2 = 1.2 + 1.1 = 2.3 mm / s of the second diagonal group, so A1 > A2, and the first diagonal group is the high-vibration group; comparing the vibration effective value V1 of the first footing with the vibration effective value V3 of the third footing, it is determined that the first footing is the suspended footing; the suspension judgment unit sends a correction execution instruction to the cooperative correction execution unit according to the determined suspended footing.

[0091] (3) Cooperative correction execution action

[0092] After the cooperative correction execution unit receives the correction execution instruction of the suspension judgment unit, the motor 7 of the bolt tensioning assembly corresponding to the first footing is controlled to start, so that the motor 7 rotates counterclockwise, and the torque sensor 9 feeds back the detected torque value to the suspension judgment unit. When the torque reaches the preset relaxation torque 5 N·m, the motor 7 is turned off, so that the footing bolt 3 of the first footing is loosened;

[0093] Then the motor 7 of the bolt tensioning assembly corresponding to the diagonal footing of the first footing, i.e. the third footing, is controlled to start, so that the motor 7 rotates clockwise, and the torque sensor 9 feeds back the detected torque value to the suspension judgment unit. When the torque reaches the rated tightening torque 220 N·m, the motor 7 is turned off, so that the third footing is tightened;

[0094] Then the hydraulic drive cylinder 14 of the jack-up assembly corresponding to the suspended footing is started, so that the extension end of the hydraulic drive cylinder 14 is pushed against the pad iron 5 through the pushing pad 16, and the suspended footing is jacked up, while the vibration collector 6 continuously collects the vibration effective value of the suspended footing in the vertical direction and sends it to the suspension judgment unit. When the vibration effective value drops within the vibration reference value, the jack-up action of the jack-up assembly is stopped, and the displacement encoder 15 feeds back the jacking height in real time; after the jacking action is completed, the motor 7 of the bolt tensioning assembly corresponding to the suspended footing is started again, so that the footing bolt 3 of the suspended footing is tightened to the rated tightening torque and fed back to the suspension judgment unit, realizing the monitoring and correction of the suspended footing.

[0095] It should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application is described in detail with reference to the above embodiments, those skilled in the art can modify the technical solutions described in the embodiments or make equivalent replacements to some technical features thereof, without departing from the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A diagonal vibration summation based device foundation loosening monitoring correction device, comprising a diagonal vibration monitoring unit, the diagonal vibration monitoring unit comprising four vibration collectors respectively installed on the upper support end faces of the four foundations of a device base for collecting the effective values of the vertical vibrations of the respective foundations; characterized in that, Also include: The foot parameter storage unit pre-stores the diagonal grouping relationship of the four feet and the vibration reference value, the preset relaxation torque and the rated tightening torque; The suspension judgment unit is electrically connected with the diagonal vibration monitoring unit and the foot parameter storage unit, adopts an embedded processor and internally builds a diagonal vibration summation comparison logic, the embedded processor is used for calling the diagonal grouping relationship of the four feet and the vibration reference value, the preset relaxation torque and the rated tightening torque in the foot parameter storage unit, and after receiving the vibration effective value of the corresponding foot in the vertical direction collected by each vibration collector in real time, the diagonal vibration summation comparison logic is used to calculate the vibration sum of the two diagonal groups respectively according to the diagonal grouping relationship of the four feet, compare the vibration sum, determine the suspended foot according to the comparison result, and send a correction execution instruction to the collaborative correction execution unit according to the determined suspended foot. The collaborative correction execution unit is electrically connected with the suspension judgment unit, includes a bolt tensioning assembly corresponding to the four feet one by one, a jack-up assembly, and is used for responding to the correction execution instruction to perform a collaborative correction operation on the suspended foot and its diagonal foot.

2. The diagonal vibration summation based monitoring correction device for loose monitorings of equipment footings of claim 1, wherein, The diagonal grouping relationship of the four feet in the foot parameter storage unit includes that the first foot and the third foot form a first diagonal group, and the second foot and the fourth foot form a second diagonal group. The collaborative correction execution unit is electrically connected with the suspension judgment unit, includes a bolt tensioning assembly corresponding to the four feet one by one, a jack-up assembly; after receiving the correction execution instruction of the suspension judgment unit, the collaborative correction execution unit controls the bolt tensioning assembly corresponding to the suspended foot to start, loosens the foot bolt of the suspended foot to the preset relaxation torque and feeds back to the suspension judgment unit, then controls the bolt tensioning assembly corresponding to the diagonal foot of the suspended foot to start, tightens the foot bolt of the diagonal foot to the rated tightening torque and feeds back to the suspension judgment unit; then the jack-up assembly corresponding to the suspended foot is started, the suspended foot is jacked up, at the same time, the vibration collector continuously collects the vibration effective value of the suspended foot in the vertical direction and sends it to the suspension judgment unit, when the vibration effective value decreases to within the vibration reference value, the jack-up assembly is controlled to stop; after the jacking action is completed, the bolt tensioning assembly corresponding to the suspended foot is started again, the foot bolt of the suspended foot is tightened to the rated tightening torque and fed back to the suspension judgment unit.

3. The diagonal vibration summation based monitoring correction device for loose monitorings of equipment footings of claim 2, wherein, The diagonal vibration summation comparison logic is used to calculate the vibration sum of the two diagonal groups respectively, compare the size of the vibration sum, determine the suspended foot according to the comparison result, specifically including: The diagonal vibration summation comparison logic is used to calculate the vibration sum of the two diagonal groups respectively, get the vibration sum A1 of the first diagonal group and the vibration sum A2 of the second diagonal group, compare the size of the vibration sum A1 and A2; If A1>A2, the first diagonal group is the high vibration group, compare the vibration effective value of the first foot and the third foot in the vertical direction, and the foot with the larger vibration effective value is determined as the suspended foot; If A2>A1, the second diagonal group is the high vibration group, compare the vibration effective value of the second foot and the fourth foot in the vertical direction, and the foot with the larger vibration effective value is determined as the suspended foot.

4. The diagonal vibration summation based monitoring correction device for loose footing of equipment according to claim 1 or 2, characterized in that, The bolt tensioning assembly comprises a motor, a support, a torque sensor and a sleeve wrench; The sleeve wrench is located directly above the foundation bolt of the corresponding foundation, and the sleeve wrench is fitted on the foundation bolt, and the inner cavity of the sleeve wrench matches the shape and size of the foundation bolt; The motor is fixedly installed on the equipment base through the support, the rotating shaft of the motor is vertically downward, and the rotating shaft of the motor is fixedly connected with the middle part of the fixed end of the sleeve wrench through a shaft coupling, the torque sensor is fixedly installed on the rotating shaft, and the rotating shaft of the motor, the sleeve wrench and the center line of the foundation bolt of the corresponding foundation coincide; The motor and the torque sensor are electrically connected with the suspension judgment unit.

5. The diagonal vibration summation based monitoring correction device for loose monitorings of equipment footings of claim 4, wherein, The torque sensor has a range of 0-500 N·m, and the tensioning accuracy is ±1 N·m.

6. The diagonal vibration summation based monitoring correction device for loose monitorings of equipment footings according to claim 1 or 2, wherein, The bolt tensioning assembly comprises a motor, a support, a bevel gear, an output shaft, a torque sensor and a sleeve wrench; The sleeve wrench is located directly above the foundation bolt of the corresponding foundation, and the sleeve wrench is fitted on the foundation bolt, and the inner cavity of the sleeve wrench matches the shape and size of the foundation bolt; The motor is fixedly installed on the equipment base through the support, the rotating shaft of the motor is vertically downward, and the rotating shaft of the motor is fixedly connected with the middle part of the fixed end of the sleeve wrench through a shaft coupling, the torque sensor is fixedly installed on the rotating shaft, and the rotating shaft of the motor, the sleeve wrench and the center line of the foundation bolt of the corresponding foundation coincide; The motor and the torque sensor are electrically connected with the suspension judgment unit. The jack-up assembly comprises a hydraulic drive cylinder, a displacement encoder and a jacking pad; 7. The diagonal vibration summation based monitoring correction device for loose monitorings of equipment footings according to claim 1 or 2, wherein, The hydraulic drive cylinder is fixedly installed on the equipment base through the support plate, the extending end of the hydraulic drive cylinder is vertically downward, the jacking pad is fixedly arranged on the end of the extending end of the hydraulic drive cylinder, and the extending end of the hydraulic drive cylinder penetrates through the through hole of the equipment base and the foundation base below the equipment base and abuts against the pad iron through the jacking pad; The displacement encoder is installed on the rotating shaft of the hydraulic drive cylinder, and the hydraulic drive cylinder and the displacement encoder are electrically connected with the suspension judgment unit. The vibration collector adopts a capacitive vibration sensor, and the sampling frequency is greater than or equal to 1 kHz; 8. The diagonal vibration summation based monitoring correction device for loose monitorings of equipment footings of claim 1, wherein, The embedded processor adopts an STM32H743 embedded processor; The vibration reference value is 1.5-3.0 mm / s; The preset relaxation torque is 3-8 N·m; The rated fastening torque is 100-500 N·m. The method comprises the following steps:

9. A diagonal vibration summation-based device anchor loosening monitoring correction method, implemented by using the diagonal vibration summation-based device anchor loosening monitoring correction device in any one of claims 1-8, characterized in that, S1, real-time collection of the vibration effective value of each corresponding foundation in the vertical direction through four vibration collectors included in the diagonal vibration monitoring unit; S2, the suspension judgment unit is electrically connected with the diagonal vibration monitoring unit and the foundation parameter storage unit, determines the suspended foundation through the diagonal vibration summation comparison logic according to the diagonal grouping relationship of the four foundations, the vibration reference value, the preset relaxation torque, the rated fastening torque and the collected vibration effective value, and sends a correction execution instruction to the cooperative correction execution unit according to the determined suspended foundation. ​ S3, the cooperative correction execution unit receives the correction execution instruction, controls the bolt tensioning assembly corresponding to the four anchor bolts and the jacking assembly to respond to the correction execution instruction, and performs cooperative correction operation on the suspended anchor bolt and the diagonal anchor bolt.

10. The diagonal vibration summation based monitoring correction method for loose equipment footing according to claim 9, wherein, The specific process of step S2 is as follows: The suspended judgment unit calls the diagonal grouping relationship of the four anchor bolts, the vibration reference value, the preset relaxation torque and the rated tightening torque in the anchor bolt parameter storage unit through the embedded processor, receives the vibration effective value of the corresponding anchor bolt in the vertical direction collected by the vibration collector in real time, calculates the vibration sum of the two diagonal groups according to the diagonal grouping relationship of the four anchor bolts through the diagonal vibration sum comparison logic, compares the vibration sum, determines the suspended anchor bolt according to the comparison result, and sends the correction execution instruction to the cooperative correction execution unit according to the determined suspended anchor bolt; The specific process of step S3 is as follows: After the cooperative correction execution unit receives the correction execution instruction, the bolt tensioning assembly corresponding to the suspended anchor bolt is started to loosen the anchor bolt of the suspended anchor bolt to the preset relaxation torque and feedback to the suspended judgment unit, and then the bolt tensioning assembly corresponding to the diagonal anchor bolt of the suspended anchor bolt is started to tighten the anchor bolt of the diagonal anchor bolt to the rated tightening torque and feedback to the suspended judgment unit; Then start the jacking assembly corresponding to the suspended anchor bolt to jack up the suspended anchor bolt, and the vibration collector continuously collects the vibration effective value of the suspended anchor bolt in the vertical direction and sends it to the suspended judgment unit; When the vibration effective value is reduced to within the vibration reference value, control the jacking assembly to stop action; After the jacking action is completed, the bolt tensioning assembly corresponding to the suspended anchor bolt is started again to tighten the anchor bolt of the suspended anchor bolt to the rated tightening torque and feedback to the suspended judgment unit; In step S2, the vibration sum of the two diagonal groups is calculated through the diagonal vibration sum comparison logic, the size of the vibration sum is compared, the suspended anchor bolt is determined according to the comparison result, and the specific process includes: The vibration sum of the two diagonal groups is calculated through the diagonal vibration sum comparison logic, the size of the vibration sum A1 and A2 is compared; If A1>A2, the first diagonal group is the high vibration group, the vibration effective values of the first anchor bolt and the third anchor bolt in the vertical direction are compared, and the anchor bolt with the larger vibration effective value is determined as the suspended anchor bolt; If A2>A1, the second diagonal group is the high vibration group, the vibration effective values of the second anchor bolt and the fourth anchor bolt in the vertical direction are compared, and the anchor bolt with the larger vibration effective value is determined as the suspended anchor bolt.

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