L-shaped rib plate unit and transverse plate assembly process state recognition and translation positioning method

Abstract

The present application relates to the L-shaped rib plate unit and the transverse partition assembly process state recognition and translation positioning method, including the following steps: step 1, equipment preparation;Step 2, traction flat push: in this process, the first pressure sensor and the second pressure sensor detect the tension of the two traction hydraulic cylinders acting on the traction beam respectively, and the distance between the transverse partition and the transverse partition is measured by the first distance sensor and the second distance sensor respectively, whether the tension reaches the adjustment condition is judged in real time, when the tension reaches the adjustment condition, whether the transverse partition satisfies the inclination condition is judged;If the transverse partition does not satisfy the inclination condition, it is judged that the butter residual amount is insufficient;The state recognition and translation positioning method of the present application realizes the quick recognition of friction state, the accurate positioning of reasons and the intelligent control of butter smearing time through integrated sensor technology and real-time data processing, improves the assembly efficiency and reduces the waste of butter.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, and in particular to a method for identifying the state and translating and positioning the L-shaped rib plate unit and the transverse diaphragm assembly process. Background Technology

[0002] To improve the fatigue resistance of the bridge deck system, the assembly gap between the diaphragm and the L-shaped stiffener must not exceed 2.0 mm. Since the L-shaped stiffener unit cannot be directly inserted into the slot above the diaphragm like the traditional U-rib and I-rib, it can only be pushed in from one side and the other side of the L-shaped stiffener. The L-shaped stiffener unit is 16 m long and has 13 L-ribs. The maximum pushing distance of the diaphragm is 7 m. Under the ideal condition that the straightness deviation of the L-shaped stiffener unit is within 2 mm over 7 m, the technical difficulties are: first, that the diaphragm does not deform during lateral movement; second, that the friction between the diaphragm and the L-rib is too large; and third, that there is friction damage on the surface of the L-rib.

[0003] Chinese invention patent CN118375062A discloses a method for parallel assembly of an L-shaped rib plate unit and a transverse partition plate with a small gap. By setting a U-shaped magnetic suction unit on the surface of the partition plate and placing it between adjacent L-shaped rib plate units, and then driving it in conjunction with two sets of traction hydraulic cylinders, the partition plate can be moved synchronously at all positions. Furthermore, a 0.1mm thick sheet metal structure is set on both sides of the L-shaped rib plate unit and coated with grease to isolate the contact position between the partition plate and the L-shaped rib plate unit, thereby reducing the friction between the partition plate and the L-shaped rib plate unit.

[0004] The above assembly method involves manual application of grease during actual operation. The friction between the partition and the L-shaped rib unit, as well as the amount of grease remaining, are visually observed before the grease is applied manually. This method is highly prone to inaccurate monitoring and lacks real-time feedback on the friction status. It may lead to uneven lubrication or increased localized friction. Furthermore, the inherent leakage risk of the hydraulic system can cause energy loss and transmission instability, interfering with the synchronicity of the partition's translation and causing it to tilt. This also exacerbates friction, a situation that cannot be accurately assessed visually. Even applying a large amount of grease in such cases cannot change the existing friction, instead increasing operational uncertainty.

[0005] Therefore, this invention proposes a method for identifying the state and translating and positioning the L-shaped rib plate unit and the transverse diaphragm during assembly to solve the above problems. Summary of the Invention

[0006] The technical problem to be solved by this invention is to provide a method for identifying the state and translating and positioning the L-shaped rib plate unit and the transverse diaphragm during the assembly process, quickly judging friction, accurately diagnosing the cause of friction, intelligently controlling the timing of grease application, ensuring translation synchronization, and realizing the rapid translation of the transverse diaphragm into place.

[0007] To solve the above technical problems, the technical solution of the present invention is: a method for state identification and translational positioning during the assembly process of an L-shaped rib plate unit and a transverse partition. The platform used for assembling the L-shaped rib plate unit and the transverse partition includes a support frame and a traction fixture. The L-shaped rib plate unit is placed on the support frame. The bottom of the transverse partition has slots corresponding to each L-shaped rib of the L-shaped rib plate unit. The traction fixture includes two traction hydraulic cylinders and a traction beam. The telescopic ends of the two traction hydraulic cylinders are connected to two traction points on the traction beam. The innovation lies in the following steps:

[0008] Step 1, Equipment Preparation: Install a first distance sensor and a first pressure sensor on one traction hydraulic cylinder, and a second distance sensor and a second pressure sensor on the other traction hydraulic cylinder. Mount the two traction hydraulic cylinders onto the two L-shaped ribs of the L-shaped rib unit. Insert the ends of each L-shaped rib of the L-shaped rib unit into the corresponding slots of the transverse diaphragm. Use U-shaped magnetic clamps to fix the traction beam to the transverse diaphragm. Extend and retract the piston rods of the two traction hydraulic cylinders to adjust the angle of the transverse diaphragm until it is perpendicular to the L-shaped ribs. Then, the first and second distance sensors detect the initial distance between the transverse diaphragm and the first distance sensor. , And use the traction beam to evenly spread the butter between the diaphragm and each L-shaped rib;

[0009] Step 2, Traction and Pushing: The two traction hydraulic cylinders are activated simultaneously, pulling the crossbeam and U-shaped magnetic chuck forward. During this process, the first and second pressure sensors detect the tension exerted by the two traction hydraulic cylinders on the traction crossbeam. , The distance to the diaphragm is measured using the first distance sensor and the second distance sensor, respectively. , It can determine in real time whether the tension has reached the adjustment condition. When the tension has reached the adjustment condition, it can determine whether the diaphragm meets the tilt condition.

[0010] If the diaphragm meets the tilting condition, it is determined that the diaphragm is tilted. The piston rods of the two traction hydraulic cylinders work together to adjust the angle of the diaphragm until the tilting condition is no longer met. If the diaphragm does not meet the tilting condition, it is determined that the grease is insufficient. The traction beam is used to reapply grease between the diaphragm and each L-shaped rib.

[0011] Furthermore, the adjustment conditions are as follows:

[0012] or

[0013] in, This is the preset tensile force threshold.

[0014] Furthermore, the tilting condition is:

[0015]

[0016] in, The vertical distance between the first and second distance sensors is the distance projected onto a plane perpendicular to the extension direction of the L-shaped rib. The maximum allowable tilt angle of the pre-set diaphragm is the maximum allowable angle between the diaphragm and the plane perpendicular to the extension direction of the L-shaped rib.

[0017] Furthermore, the aforementioned Not less than 1 / 3 of the length of the diaphragm.

[0018] Furthermore, the aforementioned Controlled by the assembly gap parameters of the transverse diaphragm and the L-shaped rib, as well as the unit parameters of the L-shaped rib, the calculation formula is as follows:

[0019]

[0020] in, The distance between the two L-shaped ribs at the two edges of the L-shaped rib unit. The thickness of the L-shaped rib in the L-shaped rib unit. This refers to the assembly gap between the diaphragm and the L-shaped rib.

[0021] Furthermore, in step 2, after the traction beam has finished reapplying grease between the diaphragm and each L-shaped rib, a time relay is used to start timing. If the tension still reaches the adjustment condition after 5-8 seconds, the second application of grease is started directly. After the second application of grease, if the tension still reaches the adjustment condition after 3-5 seconds, the two traction hydraulic cylinders stop operating and an abnormality is checked.

[0022] Furthermore, the traction beam has a built-in grease delivery line, and a number of grease nozzles are connected to the grease delivery line. The grease nozzles are spaced apart from the L-shaped ribs, and the grease openings of the grease nozzles extend outside the traction beam.

[0023] Furthermore, the butter nozzle has a Y-shaped structure, with one end of the butter nozzle being a butter inlet connected to the butter delivery pipe, and the other two ends being butter outlets facing the gap between the adjacent L-shaped ribs and the transverse partition.

[0024] The advantages of this invention are:

[0025] The state recognition and translation positioning method of the present invention adopts dual-sensor collaborative monitoring. On the one hand, the pressure sensor detects traction force fluctuations, and on the other hand, the distance sensor detects the relative displacement changes of the transverse partition in real time, dynamically feeding back the spatial angle changes of the transverse partition to realize transverse partition state recognition. When the pulling force values ​​of the two traction hydraulic cylinders exceed the set threshold, a friction warning is triggered. The cause of friction is determined based on the data detected by the distance sensor. After ruling out the possibility that the transverse partition tilts and causes friction due to unstable hydraulic transmission, the grease application mechanism is automatically triggered to complete grease application and lubrication, thereby ensuring translation synchronization and realizing rapid translation of the transverse partition into position.

[0026] The state recognition and translation positioning method of the present invention integrates sensor technology and real-time data processing to achieve rapid identification of friction state and accurate location of cause, as well as intelligent control of the timing of grease application, effectively improving assembly efficiency and reducing grease material waste. Attached Figure Description

[0027] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0028] Figure 1 This is a schematic diagram of the L-shaped rib plate unit and the diaphragm assembly platform of the present invention in the first direction.

[0029] Figure 2 This is a schematic diagram of the second direction of the L-shaped rib plate unit and the cross diaphragm assembly platform of the present invention. Detailed Implementation

[0030] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structures, features, and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0031] Example

[0032] This embodiment provides a method for identifying the state and translating the L-shaped rib plate unit and the diaphragm during the assembly process.

[0033] The platform used for assembling the L-shaped rib unit and the diaphragm includes a support frame 1 and a traction fixture. The L-shaped rib unit 3 is placed on the support frame 1. The bottom of the diaphragm 4 has slots that correspond one-to-one with each L-shaped rib of the L-shaped rib unit 3. The traction fixture includes two traction hydraulic cylinders 2 and a traction beam 12. The telescopic ends of the two traction hydraulic cylinders 2 are connected to two traction points on the traction beam 12. The traction beam 12 is detachably connected to the diaphragm 4 through several U-shaped magnetic suction pieces 11.

[0034] The traction beam 12 has a built-in grease delivery line, which is connected to a grease tank via a grease pump. Several grease nozzles are connected to the grease delivery line, spaced apart from the L-shaped ribs, with the grease openings of the nozzles extending outside the traction beam. Each grease nozzle has a Y-shaped structure, with one end serving as the grease inlet connected to the grease delivery line, and the other two ends serving as grease outlets facing the gaps between adjacent L-shaped ribs and transverse partitions.

[0035] Using the above-mentioned assembly platform, the state identification and translation positioning method for the assembly process of the L-shaped rib plate unit and the transverse diaphragm includes the following steps:

[0036] Step 1, Equipment Preparation: Install a first distance sensor and a first pressure sensor on one traction hydraulic cylinder, and install a second distance sensor and a second pressure sensor on another traction hydraulic cylinder. The distance sensor is installed on the cylinder seat of the corresponding traction hydraulic cylinder, and the pressure sensor is installed at the front end of the piston rod of the corresponding traction hydraulic cylinder.

[0037] After the sensor installation is completed, the two traction hydraulic cylinders are installed on the two L-shaped ribs of the L-shaped rib unit respectively. The ends of each L-shaped rib of the L-shaped rib unit are inserted into the corresponding slots of the transverse partition. The traction beam is fixed to the transverse partition using U-shaped magnetic suction components. When fixing the traction beam, pay attention to the assembly gap between the transverse partition and the L-shaped rib to ensure that the assembly gap meets the process requirements.

[0038] After the equipment is installed, the piston rods of the two traction hydraulic cylinders extend and retract, adjusting the angle of the transverse diaphragm so that it is perpendicular to the L-shaped rib. Then, the first and second distance sensors detect the initial distance between the transverse diaphragm and the first distance sensor. , And use the traction beam to evenly spread the butter between the diaphragm and each L-shaped rib;

[0039] Step 2, Traction and Pushing: The two traction hydraulic cylinders are activated simultaneously, pulling the crossbeam and U-shaped magnetic chuck forward. During this process, the first and second pressure sensors detect the tension exerted by the two traction hydraulic cylinders on the traction crossbeam. , The distance to the diaphragm is measured using the first distance sensor and the second distance sensor, respectively. , It can determine in real time whether the tension has reached the adjustment conditions;

[0040] The adjustment conditions are as follows:

[0041] or

[0042] in, This is the preset tensile force threshold.

[0043] When the tension reaches the adjustment condition, determine whether the diaphragm meets the tilt condition;

[0044] To avoid overall structural deviations due to cumulative displacement and to ensure a comprehensive assessment of the diaphragm's integrity, the evaluation criterion for the relative displacement change of the diaphragm is converted to the evaluation criterion for the tilt angle. Therefore, the tilt condition is:

[0045]

[0046] in, The vertical distance between the first and second distance sensors is the distance projected onto a plane perpendicular to the extension direction of the L-shaped rib. To ensure the rationality and representativeness of the detection data, it is required that... Not less than 1 / 3 of the length of the diaphragm;

[0047] The maximum permissible tilt angle of the diaphragm is the maximum allowable angle between the diaphragm and the plane perpendicular to the extension direction of the L-shaped rib. Controlled by the assembly gap parameters of the transverse diaphragm and the L-shaped rib, as well as the unit parameters of the L-shaped rib, the calculation formula is as follows:

[0048]

[0049] in, The distance between the two L-shaped ribs at the two edges of the L-shaped rib unit. The thickness of the L-shaped rib in the L-shaped rib unit. This refers to the assembly gap between the diaphragm and the L-shaped rib.

[0050] If the diaphragm meets the tilting condition, it is determined that the diaphragm is tilted. The piston rods of the two traction hydraulic cylinders work together to adjust the angle of the diaphragm until the tilting condition is no longer met. If the diaphragm does not meet the tilting condition, it is determined that the grease is insufficient. The traction beam is used to reapply grease between the diaphragm and each L-shaped rib.

[0051] After reapplying grease, start timing using a time relay. If the tension still reaches the adjustment condition after 5-8 seconds, start applying grease a second time. If the tension still reaches the adjustment condition after 3-5 seconds after the second application of grease, stop the two traction hydraulic cylinders and check for abnormalities.

[0052] The aforementioned state recognition and translation positioning method integrates sensor technology and real-time data processing, employing dual-sensor collaborative monitoring. On one hand, a pressure sensor detects traction force fluctuations; on the other hand, a distance sensor detects real-time changes in the relative displacement of the diaphragm, dynamically feeding back changes in the diaphragm's spatial angle. When the pulling force of the two traction hydraulic cylinders exceeds a set threshold, a friction warning is triggered. Based on the distance sensor data, the cause of friction is determined. After ruling out the possibility of hydraulic transmission instability causing diaphragm tilting and resulting friction, a grease application mechanism is automatically triggered to complete grease lubrication. This state recognition and translation positioning method achieves rapid identification of friction states, accurate location of causes, and intelligent control of grease application timing, thereby ensuring translational synchronization and enabling rapid diaphragm translation into position. This effectively improves assembly efficiency and reduces grease waste.

[0053] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. An L-shaped rib plate unit and transverse plate assembly process state recognition and translation positioning method, the platform used for assembling the L-shaped rib plate unit and the transverse plate comprises a support jig and a traction tool, the L-shaped rib plate unit is placed on the support jig, the bottom of the transverse plate is provided with a slot hole corresponding to each L-shaped rib plate of the L-shaped rib plate unit, the traction tool comprises two traction hydraulic cylinders and a traction beam, the extension ends of the two traction hydraulic cylinders are connected with two traction points on the traction beam, characterized in that: The state recognition and translation positioning method comprises the following steps: Step 1, equipment preparation: install the first distance sensor and the first pressure sensor on one traction hydraulic cylinder, install the second distance sensor and the second pressure sensor on another traction hydraulic cylinder, install the two traction hydraulic cylinders on the two L-shaped rib plates of the L-shaped rib plate unit respectively, pass the end of each L-shaped rib plate of the L-shaped rib plate unit in the corresponding slot hole of the transverse bulkhead, fix the traction cross beam on the transverse bulkhead by using the U-shaped magnetic attraction piece, extend and retract the piston rod of the two traction hydraulic cylinders to adjust the angle of the transverse bulkhead, and after the transverse bulkhead is perpendicular to the L-shaped rib plate, the first distance sensor and the second distance sensor detect the initial distance between the transverse bulkhead respectively , , and use the traction cross beam to evenly spread butter between the transverse bulkhead and each L-shaped rib plate; Step 2, pulling flat push: two traction hydraulic cylinders are started at the same time, the horizontal partition plate is pulled forward through the traction cross beam and the U-shaped magnetic attraction member, in this process, the first pressure sensor and the second pressure sensor detect the tension of the two traction hydraulic cylinders acting on the traction cross beam respectively 、 , and the first distance sensor and the second distance sensor measure the distance between the horizontal partition plate respectively 、 , to determine whether the tension reaches the adjustment condition in real time, and whether the horizontal partition plate meets the inclination condition when the tension reaches the adjustment condition. If the cross partition plate meets the tilt condition, it is judged that the cross partition plate is tilted, the piston rods of the two traction hydraulic cylinders are cooperatively operated to adjust the angle of the cross partition plate until the tilt condition is not met; if the cross partition plate does not meet the tilt condition, it is judged that the butter residual amount is insufficient, and the traction cross beam is used to reapply butter between the cross partition plate and each L-shaped rib plate; The adjustment condition is: or wherein, is a predetermined tension threshold value; The tilt condition is: wherein is the vertical distance between the first distance sensor and the second distance sensor, i.e. the distance projected on a plane perpendicular to the extension direction of the L-shaped rib web, is a preset maximum allowed inclination angle of the transverse bulkhead, i.e. the maximum allowed angle of the transverse bulkhead to the plane perpendicular to the extension direction of the L-shaped rib web.

2. The L-rib panel unit and cross panel assembly process state recognition and translation positioning method according to claim 1, characterized by: The not less than 1 / 3 of the bulkhead length.

3. The L-rib panel unit and crosshead assembly process state recognition and translational positioning method according to claim 1, characterized by: The The formula is controlled by the assembly gap parameters of the transverse plate and the L-shaped rib plate unit parameters, and is wherein is the distance between the two L-shaped floor slabs at the two side edges of the L-shaped floor slab unit, is the thickness of the L-shaped floor slab of the L-shaped floor slab unit, is the assembly gap of the cross bulkhead and the L-shaped floor slab.

4. The L-rib panel unit and crosshead assembly process state recognition and translational positioning method according to claim 1, characterized by: In step 2, after the reapplication of butter between the cross partition plate and each L-shaped rib plate by the traction cross beam is completed, a time relay is used to start timing, if the tension still reaches the adjustment condition after 5-8s, the second butter application is directly started, and after the second butter application, if the tension still reaches the adjustment condition after 3-5s, the two traction hydraulic cylinders stop operating, and the abnormality is checked.

5. The L-rib panel unit and crosshead assembly process state recognition and translational positioning method according to claim 1, characterized by: The traction cross beam is internally provided with a butter delivery pipeline, a plurality of butter spray heads are connected to the butter delivery pipeline, the butter spray heads are arranged at intervals between the L-shaped rib plates, and the butter openings of the butter spray heads extend out of the traction cross beam.

6. The L-rib panel unit and crosshead assembly process state recognition and translational positioning method according to claim 5, characterized in that: The butter spray head is in a Y-shaped structure, one end of the butter spray head is a butter inlet connected to the butter delivery pipeline, and the other two ends are butter outlets respectively facing the gap between the adjacent L-shaped rib plates and the cross partition plate.

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