CN112478982B - Method for installing vertical guide rail of ship elevator - Google Patents
Method for installing vertical guide rail of ship elevator Download PDFInfo
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- CN112478982B CN112478982B CN202011328128.2A CN202011328128A CN112478982B CN 112478982 B CN112478982 B CN 112478982B CN 202011328128 A CN202011328128 A CN 202011328128A CN 112478982 B CN112478982 B CN 112478982B
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- guide rail
- adjusting
- vertical guide
- center line
- flat plate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
- B66B7/023—Mounting means therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/02—Guideways; Guides
- B66B7/023—Mounting means therefor
- B66B7/027—Mounting means therefor for mounting auxiliary devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
- B66B7/1207—Checking means
- B66B7/1246—Checking means specially adapted for guides
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention discloses a method for installing a vertical guide rail of a ship elevator, which comprises the following steps: step one, manufacturing a bottom support; step two, drawing a flat cross center line on the bottom support; hoisting each section of vertical guide rail in place from bottom to top in sequence; adjusting the vertical guide rail through an adjusting device to ensure that the corresponding surfaces of the guide rails of all sections are aligned; step five, measuring the total thickness of the welding gasket and the adjusting gasket by using a caliper; step six, after the thickness measurement of the gasket is finished, installing a welding gasket; hoisting the vertical guide rail back according to the sequence of the serial numbers from bottom to top, utilizing a caliper to measure the thickness of the adjusting gasket, carrying out spot welding on the adjusting gasket which is installed in place, and installing a fastening bolt; and step eight, mounting a positioning pin and a fastening screw, and removing a base plate between the adjusting device and the vertical guide rail. The method can be operated without special training, and additional cost is not needed, and the training and operating cost is almost zero.
Description
Technical Field
The invention belongs to the field of ship construction, and particularly relates to a method for installing a vertical guide rail of a ship elevator.
Background
The guide rail of the elevator is a device for fixing and guiding the lifting platform to move, is a key for ensuring the lifting platform to realize accurate linear motion under the condition of high load, and has higher requirement on the installation precision of the guide rail. China starts late in the aspects of installation and application of the elevator, has a certain gap with foreign advanced technologies, and still has a large development space. The guide rails of the elevator in the ship are divided into two rows, each row of guide rails consists of an upper section, a middle section and a lower section, and each row of guide rails is provided with two transverse guide surfaces and two longitudinal guide surfaces, so that the good guide effect is ensured, the installation requirement on the guide rails of the elevator is higher, the parallelism between each guide surface and the vertical central plane of the platform within the height range of 1m is required to be less than or equal to 0.2mm, and the parallelism within the height range of 8.5m of the whole elevator is required to be less than or equal to 2 mm. In the installation process of the guide rail of the elevator, a steel wire drawing method is adopted to carry out relevant measurement, a guide rail installation drawing is referred, the center line of a guide rail hull base is taken as a reference to draw a wire to position and measure a guide rail welding cushion block on the guide rail base, the cross center line of a guide rail installation surface is taken as a reference, a guide rail horizontal drawing wire is respectively drawn at the proper position of the upper end and the lower end of each section of guide rail, and 6 guide rail horizontal drawing wires are drawn together, wherein the drawing wires are coplanar with the guide rail base surface and are parallel to the longitudinal center line of the platform.
The original process finds many defects in the actual operation process, such as a steel wire drawing method in the process, the number of drawn steel wires is large, each steel wire needs to be measured and adjusted to a theoretical position, the steel wire drawing progress is slow, and the measurement precision of the steel wires is not high. The method for measuring the thickness of the gasket by using the stay wire method is characterized in that one piece of data is measured at each position of the gasket to determine the thickness of the gasket, the measured data has certain defects, and the welded gasket possibly cannot be in an outward inclined state after the guide rail base is inclined inwards and is machined according to the inclination requirement of a drawing, so that the installation of the adjusting gasket is influenced. The bottom support of the guide rail has no horizontal requirement, the guide rail lifted by the crane can be in a relatively large inclined state by the bottom support which is not horizontally positioned on site, and the later adjustment workload is greatly increased. In the original process, the middle guide rail is detached and lifted off after the guide rail is installed, and then the platform guide wheel is installed, so that the step is labor-consuming and time-consuming and can be improved.
Disclosure of Invention
The invention provides a method for installing a vertical guide rail of a ship elevator, which starts from a plurality of aspects of bottom support, an adjusting tool, a guide rail flatness measuring method, a gasket measuring method and guide wheel pre-embedding, improves the installation precision of the vertical guide rail and improves the installation efficiency. The bottom support is used for providing a horizontal plane for the guide rail, so that the guide rail is in a vertical state after being hoisted on the guide rail, and the adjustment amount is reduced; by using the multi-directional adjusting tool, the adjusting efficiency of the guide rail can be higher, and the number of the adjusting tools and the installation workload of the tools are reduced; the flatness of the guide rail is measured by using an absolute laser instrument, and the guide rail can be adjusted more quickly due to high measuring speed and high precision; after the guide rail is adjusted, the thickness of the gasket is measured and the thickness is distributed, so that the inclination of the gasket is more reasonable, and the condition that the gasket shaped like an internal Chinese character 'ba' cannot be horizontally taken out is avoided; the guide wheels are embedded in advance, so that the hoisting of the guide rail for one time can be reduced, and the workload is reduced.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a method for installing a vertical guide rail of a ship elevator, which comprises the following steps:
manufacturing a bottom support, wherein the bottom support comprises an upper flat plate and an adjustable upright post, the adjustable upright post is used for supporting the upper flat plate, adjusting the levelness of the upper flat plate and the distance between the upper flat plate and a deck, and welding the bottom support on the deck;
drawing a platform cross center line on the elevator platform body according to the popping mark point of the center line on the elevator platform body, wherein the platform cross center line comprises a platform transverse center line and a platform longitudinal center line, drawing a platform longitudinal datum line on the elevator platform body according to the distance between the longitudinal center line perpendicular to the guide rail mounting surface and the platform longitudinal center line, dialing the straight line to the upper flat plate to knock the popping mark point and pop the flat plate longitudinal datum line on the platform longitudinal datum line by means of a total station, measuring the distance between the platform transverse center line and the base panel for multiple times and calculating an average value, calculating the actual distance between the guide rail mounting surface transverse center line and the base panel according to the distance between the transverse center line perpendicular to the guide rail mounting surface and the platform transverse center line, measuring the distance point on the upper flat plate, drawing a flat plate transverse center line, and the flat plate longitudinal datum line form the flat plate cross center line perpendicular to the guide rail theoretical mounting position (ii) a
Hoisting each section of vertical guide rail in place from bottom to top in sequence, aligning the cross center line of the guide rail of the lowest vertical guide rail with the cross center line of the flat plate, respectively installing two adjusting devices on two sides of each vertical guide rail, and fixing the vertical guide rails on the installation base through the adjusting devices;
adjusting the vertical guide rail through an adjusting device to enable corresponding surfaces of all sections of guide rails to keep aligned, measuring the planeness of the front surface and the side surface of the vertical guide rail by using an absolute laser instrument, adjusting the planeness of the vertical guide rail by using the absolute laser instrument until the planeness meets the requirement, measuring the horizontal distance from the mounting surface of the vertical guide rail to the horizontal central plane of the platform by using the absolute laser instrument, checking the horizontal central line of the flat plate marked on the flat plate on the bottom of the guide rail, recording a deviation value if the deviation exists, correcting the horizontal central line of the flat plate, and making a foreign-cut mark;
step five, after the guide rail meets the requirements through measurement, measuring the total thickness of the welding gasket and the adjusting gasket by using a caliper;
after the thickness measurement of the gasket is finished, hanging the vertical guide rails section by section from top to bottom, marking the position of each vertical guide rail, positioning the position of the welding gasket on the base, installing the welding gasket, and drilling an installation hole on the welding gasket and the installation base;
hoisting the vertical guide rails back according to the sequence of numbers from bottom to top, aligning the cross center line of the mounting surface of the bottom vertical guide rail with the checked latest flat plate cross center line on the bottom support panel, inserting a backing plate between the upper and lower sections of vertical guide rails, integrally embedding the platform transverse guide wheel into the vertical guide rails before hoisting the bottom vertical guide rail, utilizing a caliper to obtain the thickness of the adjusting gasket, processing the adjusting gasket according to the measurement size and installing the adjusting gasket in place, and carrying out spot welding on the adjusting gasket in place and installing a fastening bolt;
and step eight, mounting a positioning pin and a fastening screw, and removing a base plate between the adjusting device and the vertical guide rail.
As a preferable technical scheme, in the first step, 4 adjustable columns are provided, and the upper flat plate is a steel plate with the upper surface planed by a planer and the thickness of 50 mm.
As a preferred technical solution, in the third step, the adjusting device includes two installation adjusting mechanisms used in cooperation, each installation adjusting mechanism includes a U-shaped bottom plate, a fixing bolt, a support plate, a first adjusting mechanism, and a second adjusting mechanism, the width of a clamping groove of the U-shaped bottom plate is greater than the thickness of a base panel of the installation base, a bolt installation hole is penetratingly disposed through a side wall of the U-shaped bottom plate, the fixing bolt is installed in the bolt installation hole, the support plate is L-shaped, one end of the support plate is welded to a closed end of the U-shaped bottom plate, the first adjusting mechanism and the second adjusting mechanism are installed on the support plate, the first adjusting mechanism includes a first adjusting base and a first adjusting bolt, the first adjusting bolt is in threaded connection with the first adjusting base, the second adjusting mechanism includes a second adjusting base and a second adjusting bolt, the second adjusting bolt is in threaded connection with the second adjusting base, and the first adjusting bolt is perpendicular to the second adjusting bolt.
Preferably, the second adjusting mechanism is disposed on a side opposite to the U-shaped bottom plate.
In the third step, the vertical guide rails are set to be 3 sections, and a gap of 1mm is left between adjacent vertical guide rails.
As a preferred technical solution, in the fourth step, the measuring method of the vertical guide rail is as follows:
s1, placing the absolute laser on a platform, zeroing the absolute laser and selecting a reference;
s2, sequentially reading the position data of the measuring points at the end part of each section of the vertical guide rail by the light target;
s3, automatically processing and displaying the verticality of the vertical guide rail and the flatness deviation value of each measuring point relative to the plane where the side surface and the front surface of the vertical guide rail are located by the system;
and S4, based on the result, if the data does not meet the requirement, adjusting correspondingly by the adjusting device until the requirement is met.
As a preferable technical scheme, the measurement precision of the absolute laser instrument is 0.01 mm.
Compared with the prior art, the invention has the beneficial effects that:
(1) the upper flat plate surface of the bottom support is a plane planed by a machine, the upper flat plate of the bottom support can be adjusted to be horizontal by adjusting the bottom adjustable upright post by the level gauge, the upper flat plate surface of the bottom support is an ideal horizontal plane, and after the vertical guide rail is hoisted on the bottom support plate, the vertical state of the vertical guide rail can be better, and the subsequent adjustment workload can be reduced.
(2) The two adjusting bolts of the adjusting device can adjust the position of the vertical guide rail from two directions, so that the adjustment of the vertical guide rail is more convenient, and the number of the adjusting devices and the installation workload of the adjusting devices are reduced.
(3) The invention adopts the absolute laser to measure the flatness of the vertical guide rail, and the absolute laser has the measuring precision of 0.01mm and ultrahigh measuring precision, so that the position of the light target can be automatically tracked, the three-dimensional coordinate of the position can be read, the flatness and the accurate deviation value of each measuring point are displayed by system processing after the reading is finished, the measuring speed is high, and the adjusting efficiency is greatly improved.
(4) The thickness of the welding gasket is measured and calculated by the method, so that the plane of the base of the ship structure can be prevented from inclining inwards, and the condition that the adjusting gasket cannot be horizontally taken out after the welding gasket is welded is avoided.
(5) According to the invention, the transverse guide wheel of the platform is pre-embedded into the vertical guide rail in advance before the bottom guide rail is hung, so that the step of disassembling the guide rail hanging platform in the later period is omitted, and the step of disassembling and assembling is reduced.
(6) The adjusting device is simple to manufacture, low in cost, and strong in universality, and is suitable for ships of the same series.
(7) The method can be operated without special training, and additional cost is not needed, and the training and operating cost is almost zero.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of a base support according to the present invention.
Fig. 2 is a front view of the adjustment device of the present invention.
Fig. 3 is a top view of the adjustment device of the present invention.
FIG. 4 is a diagram illustrating the operation of the adjusting device of the present invention.
Fig. 5 is a schematic drawing of the elevator platform body and vertical guide mounting surface of the present invention.
FIG. 6 is a schematic drawing of a cross-sectional centerline of a flat panel according to the present invention.
Fig. 7 is a schematic view of the front measurement point of the vertical guide rail of the present invention.
Fig. 8 is a schematic view of the vertical guide rail side measurement points of the present invention.
Wherein the reference numerals are specified as follows: the adjustable base plate comprises a U-shaped bottom plate 1, fixing bolts 2, a supporting plate 3, a first adjusting base 4, a first adjusting bolt 5, a second adjusting base 6, a second adjusting bolt 7, an upper flat plate 8, an adjustable upright post 9, an upper flat plate 10, a platform transverse center line 11, a platform longitudinal center line 12 and a platform longitudinal reference line 13.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
Example 1
The embodiment provides a vertical guide rail installation adjusting device of an elevator, which comprises two installation adjusting mechanisms matched with each other for use, wherein the installation adjusting mechanisms are symmetrically arranged on two sides of a vertical guide rail. The mounting adjusting mechanism comprises a U-shaped bottom plate 1, a fixing bolt 2, a supporting plate 3, a first adjusting mechanism and a second adjusting mechanism.
The width of the clamping groove of the U-shaped bottom plate 1 is larger than the thickness of the base panel of the mounting base, the side wall penetrating through the U-shaped bottom plate 1 is provided with a bolt mounting hole in a penetrating mode, and the fixing bolt 2 is mounted in the bolt mounting hole. The U-shaped bottom plate 1 and the fixing bolts 2 form a bottom fixing mechanism, the U-shaped bottom plate 1 is clamped on the base panel of the vertical guide rail, and the U-shaped bottom plate 1 can be quickly fixed on the base panel of the vertical guide rail by fastening the U-shaped bottom plate 1 through the symmetrically distributed 2 fixing bolts 2.
The first adjusting mechanism and the second adjusting mechanism are arranged on the supporting plate 3, and the second adjusting mechanism is arranged on one side opposite to the U-shaped bottom plate 1. The first adjusting mechanism comprises a first adjusting base 4 and a first adjusting bolt 5, the first adjusting bolt 5 is in threaded connection with the first adjusting base 4, the second adjusting mechanism comprises a second adjusting base 6 and a second adjusting bolt 7, the second adjusting bolt 7 is in threaded connection with the second adjusting base 6, the first adjusting bolt 5 is perpendicular to the second adjusting bolt 7, and the first adjusting bolt 5 and the second adjusting bolt 7 can adjust the position of the vertical track from two directions perpendicular to each other. The fixing bolt 2 is arranged on one side of the U-shaped bottom plate 1 far away from the second adjusting mechanism.
The using process is as follows:
preparing each component according to the external dimension of the vertical guide rail, wherein the distance between the plates of the U-shaped bottom plate 1 is larger than the thickness of a base panel of the vertical guide rail, and assembling and welding the device;
and secondly, preliminarily hoisting the vertical guide rail in place, then symmetrically clamping the U-shaped bottom plate 1 provided with the adjusting mechanism on the base panel of the vertical guide rail near two ends of each section of guide rail, and installing the tool in place by screwing the fixing bolt 2.
Thirdly, according to actual needs, the front, back, left and right positions of the vertical guide rail are adjusted by symmetrically adjusting the first adjusting bolt 5 and the second adjusting bolt 7 until the position and the verticality of the vertical guide rail meet installation requirements;
step four, keeping the position of the vertical guide rail unchanged, and measuring the thickness of an adjusting gasket of the vertical guide rail by using a caliper;
processing an adjusting gasket according to the measured data, performing matched installation of the adjusting gasket, installing an installation bolt of the vertical guide rail, and fastening according to the required torque force;
step six, unscrewing each first adjusting bolt 5 and each second adjusting bolt 7 by using a wrench, then unscrewing the fixing bolt 2, and removing the installation adjusting mechanism;
and seventhly, finishing the tool and finishing the installation.
Example 2
The embodiment provides a method for installing a vertical guide rail of a ship elevator, which comprises the following steps:
the method comprises the following steps of firstly, manufacturing a bottom support, wherein the bottom support comprises an upper flat plate 8 and adjustable stand columns 9, the upper flat plate 8 is a steel plate with the upper surface planed by a planer and the thickness of 50mm, the number of the adjustable stand columns is 4, the adjustable stand columns 9 are used for supporting the upper flat plate 8, the levelness of the upper flat plate 8 and the distance between the upper flat plate 8 and a deck are adjusted to reach the theoretical value required by a drawing, then the upper flat plate 8 of the bottom support is adjusted to be horizontal by means of a level gauge through adjusting the adjustable stand columns 9 at the bottom, and spot welding is conducted after adjustment is completed.
Secondly, drawing a platform cross center line on the elevator platform body according to the ocean punching mark point of the center line on the elevator platform body, wherein the platform cross center line comprises a platform transverse center line 11 and a platform longitudinal center line 12, drawing a platform longitudinal datum line 13 on the elevator platform body according to the distance between the longitudinal center line vertical to the guide rail mounting surface and the platform longitudinal center line 12, dialing the straight line to the upper flat plate by taking a point on the platform longitudinal datum line 13 by means of a total station, knocking the ocean punching mark point and popping out the flat plate longitudinal datum line, measuring the distance L from the transverse center line 11 of the platform to the base panel for multiple times and calculating an average value, calculating the actual distance from the transverse center line of the guide rail mounting surface to the base panel according to the distance B from the transverse center line vertical to the platform transverse center line 11 of the guide rail mounting surface, measuring the distance point on the upper flat plate 10, and drawing a flat plate transverse center line, the horizontal center line of the flat plate and the longitudinal datum line of the flat plate form a cross center line of the flat plate perpendicular to the theoretical installation position of the guide rail.
And step three, hoisting the vertical guide rails in place sequentially from bottom to top, aligning the cross center line of the guide rail of the lowest vertical guide rail with the cross center line of the flat plate, paying attention to the orientation of the longitudinal guide surface of the vertical guide rail during hoisting, enabling the longitudinal guide surface of the vertical guide rail to face the longitudinal center line 11 of the platform, enabling each guide rail to be composed of an upper section, a middle section and a lower section, reserving 1mm between the upper section and the lower section of the guide rail, and temporarily padding and plugging the upper section and the lower section of the guide rail by using a 1mm padding plate during installation. Two adjusting devices are respectively arranged on two sides of each vertical guide rail, and the vertical guide rails are fixed on the mounting base through the adjusting devices.
And step four, adjusting the vertical guide rail through an adjusting device to enable corresponding surfaces of all sections of guide rails to keep aligned, measuring the planeness of the front surface and the side surface of the vertical guide rail by using an absolute laser instrument, adjusting the planeness of the vertical guide rail to meet requirements by using the absolute laser instrument, measuring the horizontal distance from the mounting surface of the vertical guide rail to the transverse central plane of the platform by using the absolute laser instrument, checking the transverse central line of the flat plate scribed on the upper flat plate 8 at the bottom of the guide rail, recording a deviation value if the deviation exists, correcting the transverse central line of the flat plate, and making a foreign-cut mark.
S1, placing the absolute laser on a platform, correcting the absolute laser to zero and selecting a reference;
s2, sequentially reading the position data of the measuring points at the end part of each section of the vertical guide rail by the light target;
s3, automatically processing and displaying the verticality of the vertical guide rail and the flatness deviation value of each measuring point relative to the plane where the side surface and the front surface of the vertical guide rail are located by the system;
and S4, based on the result, if the data does not meet the requirement, adjusting correspondingly by the adjusting device until the requirement is met. The side surface measurement of the vertical guide rail needs to place a light target on a longitudinal guide surface of the vertical guide rail, two points need to be arranged at the vertical guide rail at the bottom, and then the points are sequentially taken upwards for measurement, so that a measurement surface is guaranteed to be formed. The front surface of the vertical guide rail is provided with data which ensures to form a measuring surface by adopting a horizontal retracing point-taking measuring mode.
And step five, after the guide rail meets the requirements through measurement, measuring the total thickness of the welding gasket and the adjusting gasket by using a caliper. The position of each spacer is measured at the inner side and the outer side and recorded, and if deviation exists in the process of checking the transverse center line of the mounting surface by using an absolute laser instrument, the total thickness of the spacer is corrected by adding a deviation value on the basis of the actual measured total thickness. And after the measurement is finished, welding the theoretical thickness of the gasket by 15mm and adjusting the theoretical thickness of the gasket by 19mm according to the requirements of a drawing, and distributing the thickness of the gasket and marking the corresponding number according to the requirement that the thickness of the welded gasket and the thickness of the adjusted gasket are more than or equal to 10 mm. The contact surface of the welding gasket is processed to incline towards the outside (two sides) of the base, the inclination is 1:80, the surface roughness reaches Ra6.3 mu m, and aiming at the condition that the inner side measurement data is larger than the outer side measurement data (the base plane of the ship structure inclines towards the inner side), the inclination of the welding gasket needs to be increased according to the actual condition so as to ensure that the contact surface of the welding gasket and the adjusting gasket inclines towards the outside of the base.
And step six, after the thickness of the gasket is measured, hanging the vertical guide rails from top to bottom section by section, marking the position of each vertical guide rail, positioning the position of the welding gasket on the base, installing the welding gasket, and paying attention to the orientation of the welding gasket when the welding gasket is installed. And according to the guide rail installation drawing, finding out the centers of the bolt holes in the welding cushion blocks through a tape and a powder pulling line, and making ocean punching marks. And (4) drilling the welding gasket and the guide rail hull base together by using corresponding drilling equipment according to the aperture required by the drawing.
And step seven, the vertical guide rails are hung back from bottom to top according to the serial numbers, the cross center line of the installation surface of the bottom vertical guide rail is aligned with the checked latest cross center line on the upper flat plate 8, and a base plate with the thickness of 1mm is inserted between the upper vertical guide rail and the lower vertical guide rail. Note that the platform transverse guide wheels need to be integrally pre-buried in the vertical guide rails before the bottom vertical guide rails are hung. The flatness of the vertical guide rail is detected by using an absolute laser, and the position of the vertical guide rail is corrected and fixed by using an adjusting device, so that the verticality and the flatness of the vertical guide rail meet the installation requirement. And (4) utilizing calipers to measure the thickness of the adjusting gasket, and clamping four points of each gasket according to the records corresponding to the marks. And installing the machined adjusting gaskets in place according to the numbers, and grinding the corresponding gaskets when necessary. Adjusting the installation precision requirement of the gasket: checking that the mounting clearance is smaller than or equal to 0.05mm by using a feeler gauge, allowing the insertion depth of the feeler gauge of 0.05mm to be not larger than 10mm, and enabling the contact ratio to be larger than or equal to 60%, and performing spot welding on the adjusting gasket mounted in place and mounting a fastening bolt;
and step eight, drilling guide rail installation screw holes and positioning pin holes according to the guide rail installation drawing, installing vertical guide rail positioning pins, and symmetrically fastening screws and nuts from the connection parts of the sections of the guide rail to two sides by using a torque wrench. And (4) removing each vertical guide rail fixing and adjusting device, and removing the temporary gasket of the lower section of the vertical guide rail and the base plate between the two sections of guide rails.
Although the present invention has been described in detail with respect to the above embodiments, it will be understood by those skilled in the art that modifications or improvements based on the disclosure of the present invention may be made without departing from the spirit and scope of the invention, and these modifications and improvements are within the spirit and scope of the invention.
Claims (7)
1. A method for installing a vertical guide rail of a ship elevator is characterized by comprising the following steps:
manufacturing a bottom support, wherein the bottom support comprises an upper flat plate and an adjustable upright post, the adjustable upright post is used for supporting the upper flat plate, adjusting the levelness of the upper flat plate and the distance between the upper flat plate and a deck, and welding the bottom support on the deck;
secondly, drawing a platform cross center line on the elevator platform body according to the popping mark point of the center line on the elevator platform body, wherein the platform cross center line comprises a platform transverse center line and a platform longitudinal center line, drawing a platform longitudinal datum line on the elevator platform body according to the distance between the longitudinal center line vertical to the guide rail mounting surface and the platform longitudinal center line, dialing the platform longitudinal datum line to the upper flat plate by taking a point on the platform longitudinal datum line through a total station, knocking the platform longitudinal datum line and popping out the flat plate longitudinal datum line, measuring the distance from the platform transverse center line to the base panel for multiple times and calculating an average value, calculating the actual distance from the guide rail mounting surface transverse center line to the base panel according to the distance from the transverse center line vertical to the platform transverse center line, measuring the distance point on the upper flat plate, and drawing a flat plate transverse center line, the horizontal center line of the flat plate and the longitudinal datum line of the flat plate form a cross center line of the flat plate perpendicular to the theoretical installation position of the guide rail;
hoisting each section of vertical guide rail in place from bottom to top in sequence, aligning the cross center line of the guide rail of the lowest vertical guide rail with the cross center line of the flat plate, respectively installing two adjusting devices on two sides of each vertical guide rail, and fixing the vertical guide rails on the installation base through the adjusting devices;
adjusting the vertical guide rail through an adjusting device to enable corresponding surfaces of all sections of guide rails to keep aligned, measuring the planeness of the front surface and the side surface of the vertical guide rail by using an absolute laser instrument, adjusting the planeness of the vertical guide rail by using the absolute laser instrument until the planeness meets the requirement, measuring the horizontal distance from the mounting surface of the vertical guide rail to the horizontal central plane of the platform by using the absolute laser instrument, checking the horizontal central line of the flat plate marked on the flat plate on the bottom of the guide rail, recording a deviation value if the deviation exists, correcting the horizontal central line of the flat plate, and making a foreign-cut mark;
step five, after the guide rail meets the requirements through measurement, measuring the total thickness of the welding gasket and the adjusting gasket by using a caliper;
after the thickness measurement of the gasket is finished, hanging the vertical guide rails section by section from top to bottom, marking the position of each vertical guide rail, positioning the position of the welding gasket on the base, installing the welding gasket, and drilling an installation hole on the welding gasket and the installation base;
hoisting the vertical guide rails back according to the sequence of numbers from bottom to top, aligning the cross center line of the mounting surface of the bottom vertical guide rail with the checked latest flat plate cross center line on the bottom support panel, inserting a backing plate between the upper and lower sections of vertical guide rails, integrally embedding the platform transverse guide wheel into the vertical guide rails before hoisting the bottom vertical guide rail, measuring the thickness of the adjusting shim by using a caliper, processing the adjusting shim according to the measuring size and installing the adjusting shim in place, and performing spot welding on the adjusting shim in place and installing a fastening bolt;
and step eight, mounting a positioning pin and a fastening screw, and removing a base plate between the adjusting device and the vertical guide rail.
2. The method for installing the vertical guide rail of the ship elevator as claimed in claim 1, wherein in the first step, the number of the adjustable columns is 4, and the upper plate is a steel plate with a thickness of 50mm whose upper surface is planed by a planer.
3. The method for installing the vertical guide rail of the ship elevator as claimed in claim 1, wherein in the third step, the adjusting device comprises two installation adjusting mechanisms used in cooperation, the installation adjusting mechanisms comprise a U-shaped bottom plate, a fixing bolt, a supporting plate, a first adjusting mechanism and a second adjusting mechanism, the width of a clamping groove of the U-shaped bottom plate is larger than the thickness of a base panel of the installation base, a bolt installation hole penetrates through the side wall of the U-shaped bottom plate, the fixing bolt is installed in the bolt installation hole, the supporting plate is L-shaped, one end of the supporting plate is welded with the closed end of the U-shaped bottom plate, the first adjusting mechanism and the second adjusting mechanism are installed on the supporting plate, the first adjusting mechanism comprises a first adjusting base and a first adjusting bolt, and the first adjusting bolt is in threaded connection with the first adjusting base, the second adjusting mechanism comprises a second adjusting base and a second adjusting bolt, the second adjusting bolt is in threaded connection with the second adjusting base, and the first adjusting bolt is perpendicular to the second adjusting bolt.
4. The method of claim 3, wherein the second adjustment mechanism is disposed on a side opposite the U-shaped bottom plate.
5. The method for installing the vertical guide rail of the ship elevator as claimed in claim 1, wherein in the third step, the vertical guide rails are arranged in 3 sections, and a gap of 1mm is left between the adjacent vertical guide rails.
6. The method for installing the vertical guide rail of the ship elevator as claimed in claim 1, wherein in the fourth step, the measurement method of the vertical guide rail is as follows:
s1, placing the absolute laser on a platform, zeroing the absolute laser and selecting a reference;
s2, sequentially reading the position data of the measuring points at the end part of each section of the vertical guide rail by the light target;
s3, automatically processing and displaying the verticality of the vertical guide rail and the flatness deviation value of each measuring point relative to the plane where the side surface and the front surface of the vertical guide rail are located by the system;
and S4, based on the result, if the data does not meet the requirement, adjusting correspondingly by the adjusting device until the requirement is met.
7. The method of claim 6, wherein the absolute laser is measured with a precision of 0.01 mm.
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| CN113770611A (en) * | 2021-08-30 | 2021-12-10 | 中国船舶重工集团公司第七一六研究所 | Intelligent welding robot for ship cabin |
| CN117464345B (en) * | 2023-12-27 | 2024-04-19 | 南通中远海运船务工程有限公司 | Preparation method of bearing cushion block and related device |
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