Assembly type adjustable cushion block

Abstract

The invention relates to an assembly type adjustable cushion block which comprises a welding cushion block, an adjusting gasket and a supporting cushion block which are sequentially stacked and fixed through a plurality of compression bolts. A fastening threaded through hole is formed in the center of the welding cushion block, 2-6 pressing threaded holes matched with the pressing bolts are evenly distributed in the periphery of the fastening threaded through hole, and the depth of the pressing threaded holes is 1 / 2-3 / 4 of the height of the welding cushion block. In implementation, the thickness of the fabricated adjustable cushion block can be adjusted and changed according to an applicable scene, each group of formed adjustable cushion blocks can bear a supporting function in a certain spatial range, the multiple groups of adjustable cushion blocks form a cluster, and due to the uniform specification, the formed multiple groups of adjustable block clusters are high in accuracy and do not need to be frequently debugged one by one, so that the production efficiency of the fabricated adjustable cushion block is improved. The device can jointly act on adjustment and installation of large-size equipment, time and labor are saved, and the working efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of ship installation, in particular to an assembled adjustable cushion block, and in particular to an assembled adjustable cushion block used for installation of large-scale equipment. Background Art

[0002] With the development of the shipbuilding and marine equipment industries, there are more and more scenarios for installing large and large-scale equipment on ships. For example, large equipment distributed in strips is installed on a continuous and wide deck surface. The equipment can be composed of multiple units, and the total length can reach tens of meters or even hundreds of meters. The installation of such equipment has high requirements for straightness along the length direction, that is, high requirements for the flatness of the bottom and / or side installation surfaces of the equipment. However, it is difficult to avoid undulations on the surface of the hull structure, so it is necessary to insert gaskets between the equipment and the hull structure and adjust the thickness of the gaskets at different positions to make multiple discrete installation surfaces meet the overall flatness requirements.

[0003] For the above scenario, it is necessary to place multiple groups of pads on the hull structure, and the pads are arranged in appropriate positional relationships to form a pad cluster. For the thickness adjustment of these pads, the commonly adopted method is to prepare pads with sufficient thickness redundancy, install them in place, measure the target plane position of the equipment installation on site, and then perform overall cutting on the surface of each pad to remove excess thickness, so that the surface of each pad after processing is consistent with the target plane, thereby achieving the overall flatness requirement of the equipment installation.

[0004] The above method is feasible for conventional size equipment and when the number of pads is not too large. However, for large-scale equipment and the configuration of pad clusters, the above method is difficult to implement in practice for two main reasons.

[0005] First, the cutting device must be able to cover all the pads and maintain a uniform cutting benchmark. Therefore, the cutting device itself has a large stroke, and generally adopts a solution of setting up a track and running the cutting device along the track. The device is precisely manufactured and expensive, and often needs to be used with a precision measuring device. The flatness of the track is the prerequisite for the flatness of the pad cutting, and the laying and leveling of long-distance tracks brings a lot of workload.

[0006] 2. During the dock construction stage, the installation of hull modules and equipment will cause the hull to deform; during the dock mooring stage, changes in hydrology and ship buoyancy will also cause hull deformation. In addition, throughout the entire process of ship construction, changes in sunlight and temperature will cause hull deformation. Under the influence of the above factors, the ship structure is almost always deforming, which has a significant impact on the large-area distributed cluster of pads. Therefore, it is difficult to find a stable track erection benchmark and cutting processing benchmark. The time window left for measuring and cutting the pads is very short, and the construction is very difficult. After all the pads are processed, there is still a risk of flatness deviation due to hull deformation. Once it is out of tolerance, the cost of correction is very high.

[0007] It can be seen from the above that in situations where there are a large number of pads and a large distribution span, the pad thickness adjustment solution based on track installation and pad cutting is difficult and costly to construct, and there is a strong demand for the development of low-cost, simple and efficient alternative solutions. Summary of the invention

[0008] The purpose of the present invention is to provide an improved assembled adjustable pad, which can form a pad with adjustable thickness through structural improvement, can be used repeatedly, and at the same time achieve the adjustment requirement of the overall flatness, and is suitable for the needs of large-scale equipment using pad clusters.

[0009] In order to achieve the above-mentioned purpose, the technical solution of the present invention is: an assembled adjustable pad, characterized in that: the adjustable pad includes a welding pad, an adjustment pad and a supporting pad stacked in sequence, and the three are fixed by a plurality of clamping bolts; a fastening threaded through hole is provided at the center of the welding pad, and 2-6 clamping threaded holes matching the clamping bolts are evenly distributed around the fastening threaded through hole, and the depth of the clamping threaded hole is 1 / 2-3 / 4 of the height of the welding pad.

[0010] Preferably, at least one adjustment gasket is arranged between the welding pad and the supporting pad, and a fastening waist-shaped hole corresponding to the fastening threaded through hole is provided at the center of the adjustment gasket, and clamping waist-shaped holes corresponding to the clamping threaded holes are symmetrically provided on both sides of the fastening waist-shaped hole. The fastening waist-shaped hole and the clamping waist-shaped hole are hole types with one end open and the other end closed, which is convenient for inserting or withdrawing the adjustment gasket.

[0011] Further, the thickness of the adjustment gasket is 0.2-0.5mm, the diameter of the fastening waist-shaped hole is 0.1-0.3mm larger than the diameter of the fastening threaded through hole, and the diameter of the clamping waist-shaped hole is 0.1-0.3mm larger than the diameter of the clamping threaded hole.

[0012] Furthermore, the bottom of the support pad is a fitting surface, which matches the top surface of the adjustment gasket. The support pad is provided with an upper fastening threaded through hole that matches the fastening screw hole through hole, and an upper clamping threaded through hole that matches the clamping threaded hole.

[0013] Furthermore, a circular bolt groove is provided at the top of the upper clamping threaded through hole, and the bolt groove is used to place the bolt head of the clamping bolt, and a step is formed between the bolt groove and the upper clamping threaded through hole.

[0014] Furthermore, a folded edge is provided on one side of the welding pad, and a 90-degree angle is formed between the folded edge and the welding pad body.

[0015] Compared with the prior art, the technical solution of the present invention not only improves the overall technical solution, but also includes many improvements in details. Specifically, it has the following beneficial effects: 1. The improved scheme of the present invention, the adjustable pad includes a welding pad, an adjustment pad and a support pad stacked in sequence, the three are fixed by a plurality of clamping bolts, and the thickness of the adjustable pad can be adjusted by increasing or decreasing the number of the adjustment pads, so that the adjustable pads can be used in groups, suitable for different flat installation and side installation requirements, with a wide range of applications, the adjustable pads used in groups have highly uniform specifications, good use effect, save a lot of leveling time, and improve work efficiency; 2. In the technical solution of the present invention, a fastening threaded through hole is provided at the center of the welding pad, and 2-6 fastening threaded holes matching with the clamping bolts are evenly distributed around the fastening threaded through hole. The depth of the clamping threaded hole is 1 / 2-3 / 4 of the height of the welding pad. The welding pad is fastened by the clamping bolts when in use, ensuring that it will not fall off or move during use, thereby ensuring the stability of the pad and the safety during use; 3. In the structure of the present invention, at least one adjusting pad is arranged between the welding pad and the supporting pad, a fastening waist-shaped hole corresponding to the fastening threaded through hole is arranged at the center of the adjusting pad, and compression waist-shaped holes corresponding to the compression threaded holes are symmetrically arranged on both sides of the fastening waist-shaped hole, and the fastening waist-shaped hole and the compression waist-shaped hole are hole types with one end open and the other end closed, which is convenient for inserting or withdrawing the adjusting pad, so that the thickness of the overall adjustable pad can be effectively adjusted, with a wide range of applications, flexible and changeable use, and can be repeatedly used, which reduces costs and improves efficiency; 4. The present invention has a simple structure, reasonable layout, wide applicability, outstanding economic benefits, and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of an embodiment of the present invention.

[0017] Figure 2 It is a structural schematic diagram of another embodiment of the present invention.

[0018] Figure 3 It is a structural schematic diagram of the adjusting gasket of the present invention.

[0019] Figure 4 This is a reference diagram of the use status of an embodiment of the present invention.

[0020] Figure 5 This is a reference diagram of the use status of another embodiment of the present invention.

[0021] Figure 6 This is a reference diagram of the usage status of another embodiment of the present invention.

[0022] Reference numerals: 1 welding pad, 2 adjusting pad, 3 supporting pad, 4 clamping bolt, 5 stud, 6 nut, 7 second bolt; 11 tightening the threaded through hole, 12 pressing the threaded hole, 13 folding the edge; 21 tightens the waist-shaped hole, 22 presses the waist-shaped hole; 31 is a fastening threaded through hole, and 32 is a pressing threaded through hole. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] The present invention provides an assembled adjustable cushion block, see Figure 1 The difference between the present invention and the prior art lies in that the adjustable pad includes a welding pad, an adjusting pad and a supporting pad stacked in sequence, and the three are fixed by a plurality of clamping bolts; a fastening threaded through hole is provided at the center of the welding pad, and 2-6 clamping threaded holes matching with the clamping bolts are evenly distributed around the fastening threaded through hole, and the clamping threaded hole is not a through hole, and the depth of the clamping threaded hole is 1 / 2-3 / 4 of the height of the welding pad.

[0025] During implementation, the assembled adjustable pads of the present invention can adjust the thickness according to the applicable scenario. Each group of adjustable pads can assume the supporting function within a certain spatial range. Multiple groups of adjustable pads form a cluster. Due to the uniform specifications, the multiple groups of adjustable block clusters formed have high precision and do not need to be frequently debugged one by one. They can work together with the installation of large-scale equipment, saving time and effort and improving work efficiency.

[0026] At the same time, according to different installation positions, the adjustable spacers can be divided into two categories: flat installation and side installation, with a wide range of applications.

[0027] Example 1

[0028] In this embodiment, the adjustable pad includes a welding pad 1, an adjustment pad 2 and a support pad 3 stacked in sequence, and the three are fixed by a plurality of clamping bolts 4; a fastening threaded through hole 11 is provided at the center of the welding pad, and 2-6 clamping threaded holes 12 matching with the clamping bolts are evenly distributed around the fastening threaded through hole. The clamping threaded holes are not through holes, and the depth of the clamping threaded holes is 1 / 2-3 / 4 of the height of the welding pad. When acting on the side, a folded edge 13 is provided on one side of the welding pad, and a 90-degree angle is formed between the folded edge and the welding pad body, which plays the role of supporting the adjustment pad and partially supporting the pad to reduce the lateral load of the clamping bolt and improve reliability.

[0029] Specifically, at least one adjustment gasket 2 is arranged between the welding pad 1 and the supporting pad 3. The number of adjustment plates can be increased or decreased according to the use environment. A fastening waist-shaped hole 21 corresponding to the fastening threaded through hole is arranged at the center of the adjustment gasket, and compression waist-shaped holes 22 corresponding to the compression threaded holes are symmetrically arranged on both sides of the fastening waist-shaped hole. The fastening waist-shaped hole and the compression waist-shaped hole are hole types with one end open and the other end closed, which is convenient for inserting or withdrawing the adjustment gasket. The adjustment gasket is a group of thin steel sheets tightly stacked and inserted between the welding pad and the supporting pad. By increasing or decreasing the number of thin sheets, the function of finely adjusting the overall thickness is realized. The thickness of the adjustment gasket is 0.2-0.5mm, the diameter of the fastening waist-shaped hole is 0.1-0.3mm larger than the diameter of the fastening threaded through hole, and the diameter of the compression waist-shaped hole is 0.1-0.3mm larger than the diameter of the compression threaded hole.

[0030] The bottom of the support pad 3 is a fitting surface, which matches the top surface of the adjustment pad. The support pad is provided with an upper fastening threaded through hole 31 that matches the fastening screw hole through hole, and an upper pressing threaded through hole 32 that matches the pressing threaded hole. The front of the support pad contacts the equipment installation surface, and the back contacts the top adjustment pad. Its function is to directly contact and support the equipment, and to press the adjustment pad to prevent it from loosening or shifting.

[0031] The clamping bolt 4 passes through the support pad, the adjustment pad, and the welding pad in sequence to maintain the integrity and stability of the overall assembly structure. The head of the clamping bolt should not be higher than the surface of the support pad, so its head should sink into the latter, and its head should be in the form of a hexagonal socket to facilitate the use of a hexagonal socket wrench. A circular bolt groove is provided at the top of the upper clamping threaded through hole, and the bolt groove is used to place the bolt head of the clamping bolt, and a step is formed between the bolt groove and the upper clamping threaded through hole.

[0032] Beneficial effects of the present invention: (1) The pad has a simple structure and strong manufacturability. It can be mass-produced in the workshop with good uniformity. The surface roughness is guaranteed by machining in the workshop, avoiding on-site processing and saving man-hours.

[0033] (2) The pads are installed and adjusted on-site by assembly, meeting the flatness requirements and avoiding on-site cutting. There is no need for large-scale on-site cutting equipment, thus saving a lot of money.

[0034] (3) There is no need to set up large-scale, high-precision tracks required for cutting devices, saving a lot of work hours.

[0035] (4) To meet the needs of continuous changes in the hull state, the thickness of the pad can be adjusted repeatedly at any time, the construction window period is significantly extended, the construction flexibility is significantly improved, and it is conducive to ensuring the quality of equipment installation.

[0036] Example 2

[0037] In this embodiment, the adjustable pad includes a welding pad, an adjustment pad and a supporting pad stacked in sequence, and the three are fixed by a number of clamping bolts; a fastening threaded through hole is provided at the center of the welding pad, and 2-6 clamping threaded holes matching with the clamping bolts are evenly distributed around the fastening threaded through hole. The clamping threaded hole is not a through hole, and the depth of the clamping threaded hole is 1 / 2-3 / 4 of the height of the welding pad.

[0038] The assembled adjustable pads are used in groups, and multiple groups of pads work together to support the equipment. Each group of pads has the same form and structure, and is composed of a welded pad 1, an adjustment pad 2, and a support pad 3, and is connected as a whole by a clamping bolt 4.

[0039] The welding pad 1 is used for welding with the hull structure to fix the position of the whole set of pads. When the stud 5 is used for fastening the equipment, the welding pad is also the basis for fastening the equipment. The stud cooperates with the nut 6 and the second bolt 7 respectively. The welding pad 1 is used for flat installation. It is generally a rectangular thick steel plate. Its lower surface fits the hull structure. 2-4 tightening threaded holes are opened on the upper surface. Each hole is not drilled through and is used to screw in the tightening bolt. Each hole should be kept at an appropriate distance from the center area of ​​the pad; a tightening threaded through hole is opened in the center area of ​​the pad according to the tightening requirements, which is used to insert the tightening bolt or screw in the stud. The threaded hole is not drilled through; the tightening threaded through hole should generally be larger than the tightening bolt hole. The welding pad 1 is used for side installation. Its bottom extends a short horizontal folded edge toward the equipment. The folded edge can cover all the adjustment gaskets and part of the thickness of the support pad from the bottom, so that it can bear most of the weight of the adjustment gasket and the support pad, so that the tightening bolt mainly bears the axial force, improving the reliability of the device.

[0040] The adjustment gasket 2 is made of thin steel sheets. For example, according to the installation accuracy requirements, the thickness of a single layer can be 0.2-0.5mm, and multiple sheets can be stacked when used. The outline size of the adjustment gasket is consistent with that of the welding pad 1. For all the openings of the welding pad 1, the adjustment gasket 2 should have holes, and each hole is slightly larger, and all are waist-shaped holes with one end open. For flat installation, the waist-shaped hole opening should face the inside of the equipment; for side installation, the opening should face downward to facilitate the insertion or removal of the gasket from the outside to the inside.

[0041] The support pad 3 is generally a rectangular thick steel plate, the lower surface of which fits the adjustment pad 2, and the upper surface contacts the installation surface of the equipment foot. The support pad 3 should have corresponding holes corresponding to the positions and sizes of all the clamping bolt holes and fastening bolt (stud) holes of the corresponding welding pad 1, and each hole is a through hole for the bolt (stud) to pass through. The part of each clamping bolt hole close to the upper surface of the pad should be expanded to form a step to accommodate the head of the clamping bolt 4, so that the latter is completely hidden under the pad surface to avoid hindering the contact of the equipment foot.

[0042] The clamping bolt 4 is a bolt with a suitable diameter, length and sufficient strength, which is used to pass through the supporting pad 3, the adjusting pad 2 in sequence, and screw into the welding pad 1 to connect the three in series. The bolt head is a hexagon socket, so that when the bolt head is completely sunk into the pad, it can be tightened or loosened using a special wrench.

[0043] The specific method of using the cushion block of the present invention is as follows: (1) Place the welding pads according to the actual placement of the equipment, especially the position of the fastening bolt holes on the equipment base, or the position specified in the design and installation drawings, and weld them to the surface of the hull structure.

[0044] (2) Use an optical measuring device or wire drawing method to measure and record the height of the surface of each welding pad.

[0045] (3) Use the height of the target installation plane of the equipment, subtract the height of the surface of each welding pad and the thickness of the supporting pad, and calculate the total thickness of each set of adjustment pads. Based on this, place adjustment pads of corresponding thickness (number of layers) on the welding pads.

[0046] (4) Place a support block on top of the adjusting gasket and install and tighten the clamping bolt.

[0047] (5) Measure the surface height of each support pad. If it is inconsistent with the unified target installation height, loosen the clamping bolts and insert or remove the adjustment gaskets of appropriate thickness (number of layers) to make the surface of the support pad consistent with the theoretical installation plane. Finally, re-tighten the clamping bolts.

[0048] (6) Place the equipment on the surface of the support pad (flat installation) or make the two close to each other (side installation), insert the fastening bolts and tighten them to complete the equipment installation.

[0049] The above content is a further detailed description of the present invention in combination with specific preferred embodiments, and it cannot be determined that the specific implementation of the present invention is limited to the above descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the scope of protection of the present invention.

Claims

1. An assembled adjustable spacer, characterized in that: The adjustable pad includes a welding pad, an adjustment pad and a supporting pad stacked in sequence, and the three are fixed by a number of clamping bolts; a fastening threaded through hole is provided at the center of the welding pad, and 2-6 clamping threaded holes matching the clamping bolts are evenly distributed around the fastening threaded through hole, and the depth of the clamping threaded hole is 1 / 2-3 / 4 of the height of the welding pad.

2. The assembled adjustable spacer according to claim 1, characterized in that: At least one adjusting gasket is arranged between the welding pad and the supporting pad. A fastening waist-shaped hole corresponding to the fastening threaded through hole is arranged at the center of the adjusting gasket. Compression waist-shaped holes corresponding to the compression threaded holes are symmetrically arranged on both sides of the fastening waist-shaped hole. The fastening waist-shaped hole and the compression waist-shaped hole are hole types with one end open and the other end closed, which is convenient for inserting or withdrawing the adjusting gasket.

3. The assembled adjustable spacer according to claim 2, characterized in that: The thickness of the adjusting gasket is 0.2-0.5mm, the diameter of the fastening waist-shaped hole is 0.1-0.3mm larger than the diameter of the fastening threaded through hole, and the diameter of the clamping waist-shaped hole is 0.1-0.3mm larger than the diameter of the clamping threaded hole.

4. The assembled adjustable spacer according to claim 1, characterized in that: The bottom of the support pad is a fitting surface, which matches the top surface of the adjusting pad. The support pad is provided with an upper fastening threaded through hole matching the fastening screw hole through hole, and an upper clamping threaded through hole matching the clamping threaded hole.

5. The assembled adjustable spacer according to claim 1, characterized in that: A circular bolt groove is arranged at the top of the upper clamping threaded through hole. The bolt groove is used for placing the bolt head of the clamping bolt, and a step is formed between the bolt groove and the upper clamping threaded through hole.

6. The assembled adjustable spacer according to claim 1, characterized in that: A folded edge is provided on one side of the welding pad, and a 90-degree angle is formed between the folded edge and the welding pad body.

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