A vibration isolation support for a marine precision measurement device

Abstract

A vibration isolation support for a marine precision measurement device, comprising a tray, a T-shaped bracket, an auxiliary bracket, and three groups of legs; the tray is rectangular; the T-shaped bracket includes a horizontal support and a vertical support connected to the bottom surface of the tray. The horizontal support is arranged along one side of the tray and has horizontal notches at both ends. The vertical support is arranged along the midline of one side of the tray, and its other end extends beyond the tray and has a vertical notch; the auxiliary bracket includes a horizontal auxiliary support and a vertical auxiliary support connected to the bottom surface of the tray, which are respectively parallel to the horizontal support and the vertical support; the three groups of legs are respectively installed at both ends of the horizontal support and the other end of the vertical support. The legs include a counterweight, a rubber shock absorber, and a U-shaped bottom foot, and the attitude of the U-shaped bottom foot is adjustable. The present invention avoids the influence of vibration, improves the erection and positioning stability in complex areas, reduces or eliminates the influence of vibration factors in the shipboard measurement environment on the precision measurement device, and ensures the accuracy and reliability of the precision measurement device in this environment.

Description

Technical Field

[0001] The invention belongs to the technical field of measuring devices, and in particular relates to a vibration isolation support for a precision measuring device for a ship. Background Art

[0002] In the field of shipbuilding, such as hull structure manufacturing and assembly, and component installation, precision measuring devices represented by automated laser measuring instruments are increasingly popular in dimensional measurement and positioning. The precision of precision measuring devices is usually high, but in actual situations, the equipment often has high precision but low precision in measurement results. The main reason is that the measuring equipment has high requirements for the on-site measurement environment. The influence of the measurement environment on precision measuring equipment may cause the measurement results to fail. For example, even slight vibrations around the measuring equipment will have a great impact on the reliability and accuracy of the measurement benchmark establishment and automatic feedback tracking process, which often causes large-scale shutdowns in shipbuilding with multiple types of work in parallel. When the measurement device is installed in the cabin and the installation site is a structural surface, the foothold of the tripod of the measuring device may collide with the structure, resulting in failure to set up or instability. Therefore, in addition to improving the accuracy of the measuring equipment itself, it is very important to avoid the influence of the environment on the measuring equipment and improve the adaptability and stability of the measurement equipment installation. Summary of the invention

[0003] In view of the above problems, the present invention provides a vibration isolation support for a precision measuring device for a ship.

[0004] The object of the present invention can be achieved by the following technical solutions: A vibration isolation support for a marine precision measuring device, comprising a tray, a T-shaped support, an auxiliary support, and three groups of legs;

[0005] The tray is rectangular;

[0006] The T-shaped bracket includes a transverse support and a longitudinal support. Both the transverse support and the longitudinal support are channel steels and their upper wing plates are connected to the bottom surface of the pallet. The transverse support is arranged along one side of the pallet. Both ends of the lower wing plate of the transverse support are provided with transverse notches. The longitudinal support is arranged along the center line of one side of the pallet, and one end of the longitudinal support is connected to the transverse support and the other end extends beyond the other side of the pallet. The other end of the lower wing plate of the longitudinal support is provided with a longitudinal notch.

[0007] The auxiliary bracket includes a transverse auxiliary support and a longitudinal auxiliary support, the transverse auxiliary support and the longitudinal auxiliary support are connected to the bottom surface of the tray and are respectively parallel to the transverse support and the longitudinal support, the transverse auxiliary support is arranged close to the other side of the tray, and the middle part is connected to the longitudinal support, the longitudinal auxiliary support is arranged on both sides of the longitudinal support, and the two ends of each longitudinal auxiliary support are respectively connected to the transverse support and the transverse auxiliary support;

[0008] The three groups of legs are respectively installed at the two ends of the lower wing plate supported laterally and at the other end of the lower wing plate supported longitudinally. Each group of legs includes a counterweight block, a rubber shock absorber, and a U-shaped base foot connected in sequence from top to bottom. The top surface of the counterweight block is connected to the lower wing plate supported by it through fasteners and slots.

[0009] Furthermore, the tray includes a rectangular bottom plate and a surrounding edge arranged at the edge of the rectangular bottom plate.

[0010] Furthermore, drainage holes are provided at the four corners of the rectangular bottom plate of the tray.

[0011] Furthermore, a plurality of longitudinal slots evenly distributed at equal intervals are provided at the other end of the longitudinal supporting lower wing plate along the extension direction.

[0012] Furthermore, the transverse auxiliary supports and the longitudinal auxiliary supports are both angle steels.

[0013] Furthermore, the plane where the lower edge of the transverse auxiliary support is located is higher than the plane where the lower wing plate of the longitudinal support is located.

[0014] Furthermore, the counterweight block is a cylinder, and threaded holes are provided in the center of the top and bottom surfaces of the counterweight block, and the first stud and the second stud are screwed into them respectively. The upper end of the first stud passes through the notch on the lower wing plate of the support and is connected to the nut, and the lower end of the second stud is screwed into the threaded hole opened at the top of the rubber shock absorber.

[0015] Furthermore, a bolt hole is provided at the bottom of the rubber shock absorber, and the U-shaped base foot is a groove block with a groove on one side. Threaded holes corresponding to the bolt holes are provided on the opposite side of the grooved surface of the U-shaped base foot and the adjacent side of the grooved surface. The rubber shock absorber and the U-shaped base foot are connected by inserting the connecting bolt into the bolt hole at the bottom of the rubber shock absorber and then screwing it into the threaded hole on the opposite side of the grooved surface of the U-shaped base foot or the adjacent side of the grooved surface; a threaded hole for matching with the tightening bolt is provided in the middle of the adjacent side of the other side of the grooved surface of the U-shaped base foot.

[0016] Furthermore, the number of bolt holes at the bottom of the rubber shock absorber is two and they are distributed symmetrically around the center, and two threaded holes are provided on the opposite surface of the slotted surface of the U-shaped foot and on the adjacent surface on one side of the slotted surface.

[0017] Furthermore, the grooved surface of the U-shaped foot, the surface opposite to the grooved surface, and the adjacent surfaces on both sides of the grooved surface are all flat.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The three sets of legs are distributed in a triangular pattern, providing the vibration isolation support with better adaptability and stability. Each set of legs can slide along the notch of the corresponding support, with adjustable positions, and can be locked in place by threaded fasteners. Thus, it can be flexibly adjusted according to the position of the structural stiffeners, suitable for the span of structural stiffeners of different ship types, ensuring the stable fixation of the vibration isolation support and achieving the best vibration isolation effect.

[0020] 2. The legs have good vibration isolation effects. Equipped with rubber shock absorbers, they can significantly weaken the vibration transmitted from the environment. Equipped with counterweights, they can reduce the natural frequency of the system, decrease the amplitude, and further weaken the vibration transmitted from the environment. The counterweights are also beneficial for maintaining the rigidity and stability of the support, and are convenient for handling, improving the portability during the erection and recovery of the vibration isolation support.

[0021] 3. Threaded holes matching the bottom screw holes of the rubber shock absorbers are provided on both the upper surface of the U-shaped bottom feet of the legs and the other side surface opposite to the slot. In this way, the attitude of the U-shaped bottom feet is adjustable, and they can be connected to the rubber shock absorbers whether placed horizontally or vertically. When the slot of the U-shaped bottom feet faces the side, i.e., when placed horizontally, it can clamp the panel of the structural stiffeners with the help of the tightening bolts, making the vibration isolation support stably fixed on the structural stiffeners. When the slot of the U-shaped bottom feet faces downwards, i.e., when placed vertically, the entire vibration isolation support can be directly placed on the hull plane structure. At this time, since the contact area between the side surface of the slot of the U-shaped bottom feet and the hull plane structure is small, if there are structural stiffeners on the lower surface of the hull plane structure, the side surface of the slot of the U-shaped bottom feet can be aligned with the structural stiffeners as much as possible to obtain a better vibration isolation effect.

[0022] 4. The tray provides sufficient and flat erection space for the tripod of the precision measuring device, ensuring that it is not blocked by the protruding hull structure.

[0023] 5. Drainage holes are provided at the four corners of the rectangular bottom plate of the tray, which can drain the accumulated water such as rainwater in the tray in time to avoid rusting.

[0024] 6. The overall height of the vibration isolation support is relatively low, facilitating the erection, debugging, and use of the measuring device, and having a better vibration isolation effect.

[0025] In summary, the vibration isolation support of the present invention can not only avoid the influence of vibration, but also improve the erection and positioning stability in complex areas, significantly reducing and even eliminating the influence of vibration factors in the shipboard measurement environment on the precision measuring device, and providing convenience and stability for the erection of the device when necessary, ensuring the accuracy and reliability of the precision measuring device in the shipboard environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural view of the present invention in an obliquely downward view direction.

[0027] Figure 2 It is a schematic structural view of the present invention in an obliquely upward view direction.

[0028] Figure 3 This is a schematic side view structure of the present invention.

[0029] Figure 4 This is a schematic rear view structure of the present invention.

[0030] Figure 5 This is a schematic structure diagram of a preferred embodiment of the present invention fastened to the deck stiffener.

[0031] Figure 6 This is a schematic structure diagram of another preferred embodiment of the present invention installed on the deck plane and aligned with the underlying deck stiffener.

[0032] The component reference numerals in the figure are as follows:

[0033] 1 Tray

[0034] 101 Drain hole

[0035] 2 Lateral support

[0036] 201 Lateral notch

[0037] 3 Longitudinal support

[0038] 301 Longitudinal notch

[0039] 4 Lateral auxiliary support

[0040] 5 Longitudinal auxiliary support

[0041] 6 Counterweight

[0042] 7 Rubber shock absorber

[0043] 8 U-shaped foot

[0044] 9 First stud

[0045] 10 Second stud

[0046] 11 Nut

[0047] 12 Connecting bolt

[0048] 13 Tightening bolt

[0049] 14 Deck

[0050] 15 Deck stiffener. Detailed implementation manners

[0051] The following details the specific implementation manners of the present invention with reference to the accompanying drawings, enabling those skilled in the art to more clearly understand how to practice the present invention. Although the present invention is described in conjunction with its preferred specific embodiments, these embodiments are merely illustrative and do not limit the scope of the present invention.

[0052] See Figures 1 to 4 , a vibration isolation support for a marine precision measuring device, comprising a tray 1, a T-shaped bracket, an auxiliary bracket, and three groups of legs.

[0053] The tray 1 is used to place the tripod of the precision measuring device. See Figure 1 , the tray 1 includes a rectangular bottom plate and a surrounding edge. The surrounding edge is provided at the edge of the rectangular bottom plate to prevent the tripod from slipping. Drainage holes 101 are provided at the four corners of the rectangular bottom plate for draining accumulated water.

[0054] The T-shaped bracket is fixedly connected to the bottom surface of the tray 1 to bear the weight of the tray 1 and the precision measuring device, maintain the rigidity of the tray 1, and transmit the weight downward. See Figure 2 , the T-shaped bracket includes a transverse support 2 and a longitudinal support 3. Both the transverse support 2 and the longitudinal support 3 can be made of channel steel or profiles with the same or similar cross-sections made of other light metal materials. The transverse support 2 is arranged along one side of the rectangular bottom plate, and its upper flange is connected to the bottom surface of the rectangular bottom plate. The length of the transverse support 2 is basically equal to the length of one side of the rectangular bottom plate; the longitudinal support 3 is arranged along the midline of one side of the rectangular bottom plate, and its upper flange is connected to the bottom surface of the rectangular bottom plate. One end of the longitudinal support 3 is connected to the transverse support 2, and the other end extends beyond the opposite side of the rectangular bottom plate. The length of the longitudinal support 3 is designed to be longer than the length of the adjacent side of one side of the rectangular bottom plate to better adapt to different rib pitches and complex structural forms of the ship's structure. Transverse notches 201 are provided at both ends of the lower flange of the transverse support 2, and a plurality of equally spaced longitudinal notches 301 are provided along the extension direction at the other end of the lower flange of the longitudinal support 3. In this embodiment, the number of longitudinal notches 301 is three, and the lengths and widths of the transverse notches 201 and the longitudinal notches 301 can be equal.

[0055] The auxiliary bracket is fixedly connected to the bottom surface of the tray 1 to cooperate with the T-shaped bracket to bear the weight of the tray 1 and the precision measuring device and maintain the rigidity of the tray 1. See Figure 2, the auxiliary support includes a transverse auxiliary support 4 and two longitudinal auxiliary supports 5. The transverse auxiliary support 4 and the longitudinal auxiliary supports 5 are both connected to the bottom surface of the rectangular base plate and are respectively parallel to the transverse support 2 and the longitudinal support 3. The transverse auxiliary support 4 is arranged near the other side of the rectangular base plate, and its middle part is connected to the longitudinal support 3. The two longitudinal auxiliary supports 5 are respectively arranged on both sides of the longitudinal support 3, each maintaining an appropriate distance from the corresponding side of the rectangular base plate, and the two ends are respectively connected to the transverse support 2 and the transverse auxiliary support 4. The cross-sectional specifications of the transverse auxiliary support 4 and the longitudinal auxiliary supports 5 are both smaller than those of the transverse support 2 and the longitudinal support 3 of the T-shaped frame, and angle steel or profiles with the same or similar cross-sections made of other lightweight metal materials can be used. The plane where the lower edge of the transverse auxiliary support 4 is located is higher than the plane where the lower wing plate of the longitudinal support 3 is located, as shown in Figure 3 , which is beneficial to adjusting the position of the legs installed on the longitudinal support 3. The lower edges of the transverse auxiliary support 4 and the longitudinal auxiliary supports 5 can be arranged on the same plane, and the lower wing plates of the transverse support 2 and the longitudinal support 3 can be arranged on the same plane.

[0056] The three groups of legs play the roles of supporting weight, fixing the support, and vibration isolation. Refer to Figures 1 to 4 , two groups of legs are respectively installed at both ends of the lower wing plate of the transverse support 2, and one group of legs is installed at one end of the lower wing plate of the longitudinal support 3. Each group of the legs includes a counterweight 6, a rubber shock absorber 7, and a U-shaped foot 8.

[0057] The counterweight 6 is a cylinder, and threaded holes are respectively opened at the centers of the top surface and the bottom surface of the counterweight 6, and the first stud 9 and the second stud 10 are respectively screwed in. The upper end of the first stud 9 passes through the notch on the lower wing plate of the corresponding support and is connected to the nut 11. By adjusting the tightness of the nut 11, each group of legs can slide along the notch and maintain the relative position, so as to flexibly determine the optimal positions of the three groups of legs according to the rib spacing of the ship structure and the specific environment. The lower end of the second stud 10 is screwed into the threaded hole opened at the top of the rubber shock absorber 7 to realize the connection between the counterweight 6 and the rubber shock absorber 7.

[0058] Two symmetrically centered bolt holes are opened at the bottom of the rubber shock absorber 7. After the two connecting bolts 12 are respectively inserted from the two bolt holes, they are screwed into the two threaded holes opened on the upper surface of the U-shaped foot 8 to realize the connection between the rubber shock absorber 7 and the U-shaped foot 8.

[0059] The U-shaped foot 8 is a steel groove block with a slot on one side. The slot is used to accommodate the edge of the protruding panel structure of the structure to realize the reliable fixation of the support. The upper surface, the lower surface, and the opposite side surface of the U-shaped foot 8 are all flat. Two threaded holes are also provided on the other side surface of the U-shaped foot 8 as on the upper surface. A threaded hole with a larger diameter is opened in the middle of the lower surface of the U-shaped foot 8, and the tightening bolt 13 can be screwed in from below.

[0060] As Figure 5 shown, when the support of the present invention is installed on the surface of the deck 14 with upward-turned stiffeners, the width direction of the support is consistent with the direction of the deck stiffeners 15. By sliding along the transverse notch 201 and longitudinal notch 301 on the T-shaped bracket, adjusting the relative positions of the three sets of legs and fixing them, the appropriate spacing is maintained between the two sets of legs on the transverse support 2. The span between the two sets of legs on the transverse support 2 and the legs on the longitudinal support 3 is consistent with the rib spacing between the two deck stiffeners 15. The slot of the U-shaped foot 8 of each set of legs accommodates the panel edge of the deck stiffener 15. Rotate the tightening bolt 13 of each set of legs so that its end rises to contact and tighten against the lower surface of the panel of the deck stiffener 15, thereby achieving reliable fixation of each set of legs and the entire support relative to the deck stiffener 15 and achieving a better vibration isolation effect.

[0061] Another embodiment of the present invention can also be adopted to enable the support of the present invention to adapt to an environment with a flat surface. As Figure 6 shown, when the deck stiffener 15 is located below the deck 14, the U-shaped foot 8 can be rotated 90° in the vertical plane so that the slot faces downward and stands upright on the surface of the deck 14. At this time, the bottom of the rubber shock absorber 7 contacts the other side of the U-shaped foot 8 and is connected and fastened by the connecting bolt 12. In this embodiment, the span between the two sets of legs on the transverse support 2 and the legs on the longitudinal support 3 should be adjusted to correspond to the rib spacing between the two deck stiffeners 15 below the deck 14, so that the slot side of the U-shaped foot 8 is basically aligned with the deck stiffener 15 below, minimizing the vibration of the deck 14 at the contact position.

[0062] It should be noted that for the present invention that has been fully described, there can also be various transformation and modification implementation schemes, which are not limited to the specific embodiments of the above implementation manners. The above embodiments are only used to illustrate the present invention, rather than to limit the present invention. In short, the protection scope of the present invention should include those transformations, substitutions and modifications that are obvious to those of ordinary skill in the art.

Claims

1. A vibration isolation support for a marine precision measuring device, characterized in that, Includes a tray, T-shaped bracket, auxiliary bracket, and three sets of legs; The tray is rectangular; The T-shaped bracket includes a transverse support and a longitudinal support. Both the transverse support and the longitudinal support are channel steels and their upper wing plates are connected to the bottom surface of the pallet. The transverse support is arranged along one side of the pallet. Both ends of the lower wing plate of the transverse support are provided with transverse notches. The longitudinal support is arranged along the center line of one side of the pallet, and one end of the longitudinal support is connected to the transverse support and the other end extends beyond the other side of the pallet. The other end of the lower wing plate of the longitudinal support is provided with a longitudinal notch. The auxiliary bracket includes a transverse auxiliary support and a longitudinal auxiliary support, the transverse auxiliary support and the longitudinal auxiliary support are connected to the bottom surface of the tray and are respectively parallel to the transverse support and the longitudinal support, the transverse auxiliary support is arranged close to the other side of the tray, and the middle part is connected to the longitudinal support, the longitudinal auxiliary support is arranged on both sides of the longitudinal support, and the two ends of each longitudinal auxiliary support are respectively connected to the transverse support and the transverse auxiliary support; The three groups of legs are respectively installed at both ends of the lower wing plate of the transverse support and the other end of the lower wing plate of the longitudinal support, and each group of legs includes a counterweight block, a rubber shock absorber, and a U-shaped foot connected in sequence from top to bottom, and the top surface of the counterweight block is connected to the lower wing plate of the support through fasteners and notches; The tray comprises a rectangular bottom plate and a surrounding edge arranged at the edge of the rectangular bottom plate; a plurality of longitudinal notches evenly distributed at equal intervals are provided at the other end of the longitudinal supporting lower wing plate along the extension direction.

2. The vibration isolation support for the marine precision measurement device according to claim 1, characterized in that The four corners of the rectangular bottom plate of the tray are all provided with drainage holes.

3. The vibration isolation support for the marine precision measurement device according to claim 1, characterized in that The transverse auxiliary supports and the longitudinal auxiliary supports are both angle steels.

4. The vibration isolation support for the marine precision measurement device according to claim 1, characterized in that, The plane where the lower edge of the transverse auxiliary support is located is higher than the plane where the lower wing plate of the longitudinal support is located.

5. The vibration isolation support for the marine precision measuring device according to claim 1, characterized in that, The counterweight block is a cylinder, and threaded holes are provided in the center of the top and bottom surfaces of the counterweight block, and the first stud and the second stud are screwed in respectively. The upper end of the first stud passes through the notch on the lower wing plate of the support and is connected to the nut, and the lower end of the second stud is screwed into the threaded hole opened at the top of the rubber shock absorber.

6. The vibration isolation support for the marine precision measurement device according to any one of claims 1 to 5, characterized in that, A bolt hole is provided at the bottom of the rubber shock absorber, and the U-shaped base foot is a groove block with a groove on one side. Threaded holes corresponding to the bolt holes are provided on the opposite side of the grooved surface of the U-shaped base foot and the adjacent side of the grooved surface. The rubber shock absorber and the U-shaped base foot are connected by inserting the connecting bolt into the bolt hole at the bottom of the rubber shock absorber and then screwing it into the threaded hole on the opposite side of the grooved surface of the U-shaped base foot or the adjacent side of the grooved surface. A threaded hole for matching with the tightening bolt is provided in the middle of the adjacent side of the other side of the grooved surface of the U-shaped base foot.

7. The vibration isolation support for the marine precision measurement device according to claim 6, characterized in that, The number of bolt holes at the bottom of the rubber shock absorber is two and they are centrally symmetrically distributed. Two threaded holes are provided on the opposite surface of the slotted surface of the U-shaped foot and on the adjacent surface on one side of the slotted surface.

8. The vibration isolation support for the marine precision measurement device according to claim 6, characterized in that, The grooved surface of the U-shaped foot, the surface opposite to the grooved surface, and the adjacent surfaces on both sides of the grooved surface are all flat.

Images