Hydraulic bolt type lifting device oil cylinder lug plate mounting process and welding equipment

Abstract

The invention provides a press bolt type lifting device oil cylinder lug plate installation technology, and relates to the technical field of hydraulic bolt type lifting devices, and the press bolt type lifting device oil cylinder lug plate installation technology comprises the steps that S1, a high-position oil cylinder lug plate and a low-position oil cylinder lug plate are distributed on a pile fixing chamber of a hull structure; s2, a first cross curve is drawn in the center of the pile fixing chamber, a total station is erected above the first cross curve, light emitted by the total station has a second cross curve, the first cross curve coincides with the second cross curve, and the positions of the high-position oil cylinder lug plate and the low-position oil cylinder lug plate are determined according to illumination of the total station; s3, the high-position oil cylinder lug plate and the low-position oil cylinder lug plate are welded through welding equipment; s4, the double faces of the high-position oil cylinder lug plate and the low-position oil cylinder lug plate are symmetrically welded; and S5, after welding is completed, UT + MT detection is conducted on a weld joint. Therefore, on the premise that the installation precision of the oil cylinder lug plate is guaranteed, the on-site machining procedure is omitted, operation is easy and convenient, implementation is easy, and meanwhile anti-deformation measures are provided.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic latch type lifting devices, and in particular to an installation process and welding equipment for an oil cylinder ear plate of a hydraulic latch type lifting device. Background Art

[0002] Self-elevating offshore platforms are widely used in marine engineering. Self-elevating offshore platforms include a platform body and a lifting system. The commonly used lifting system is a hydraulic latch type lifting system.

[0003] The hydraulic latch-type lifting system includes: pile legs, pile fixing frame, upper ring beam, lower ring beam, lifting cylinder and multiple latch assemblies. The upper ring beam, lower ring beam and pile fixing frame are arranged around the pile legs. Multiple latch assemblies are respectively installed on the upper ring beam and the lower ring beam. The two ends of the lifting cylinder are respectively installed on the upper ring beam and the lower ring beam. The pile legs are provided with multiple latch holes that cooperate with the latch assemblies along the length direction. The top of the pile fixing frame is a box-type structure and is connected to the upper ring beam through a balance assembly. The bottom of the pile fixing frame is connected to the pile fixing chamber of the hull structure of the self-elevating offshore platform. The pile fixing chamber is mainly composed of a roof top plate, a roof web plate and a roof bottom plate, while the existing lifting mechanism is to weld the ear plate directly under the roof bottom plate, so that the vertical force of the cylinder can be transmitted to the pile fixing chamber.

[0004] The prior art discloses, for example, patent CN201821124037.5, which discloses an embedded connection structure of the cylinder earring of a latch lifting mechanism, which only has a single earring directly welded on the ceiling web, and the double earrings on the lifting cylinder can pass through any embedded hole and be detachably connected to the single earring through a pin shaft. It does not explain how to specifically implement the technology of welding the ear plate, and the traditional method of installing the ear plate in the industry is to leave a certain processing allowance on the cylinder ear plate, and first weld each cylinder ear plate on the pile fixing chamber of the hull structure, and then perform on-site machining on each cylinder ear plate to meet the installation accuracy requirements.

[0005] However, due to on-site machining and small construction space, special tooling is required, which makes construction difficult, time-consuming and expensive. Therefore, a new installation process is needed to solve such problems. Summary of the invention

[0006] The technical problem to be solved by the present invention is how to ensure the installation accuracy of the oil cylinder ear plate, save the on-site machining process, and make the operation simple and easy to implement. In order to solve the above problem, the present invention provides a process for installing the oil cylinder ear plate of a press pin type lifting device, comprising:

[0007] S1: Distribute the high and low cylinder lugs on the pile fixing chamber of the hull structure;

[0008] S2: Draw a first cross line at the center of the pile fixing chamber, and set up a total station above the first cross line. The light emitted by the total station has a second cross line. The first cross line coincides with the second cross line. The positions of the high and low cylinder lugs are determined according to the illumination of the total station.

[0009] S3: Weld the high and low cylinder ear plates using welding equipment;

[0010] S4: Symmetrically weld both sides of the high and low cylinder ear plates;

[0011] S5: After welding is completed, perform UT+MT inspection on the weld.

[0012] Compared with the prior art, the cylinder ear plate installation process of the press-pin type lifting device of the present invention has the following beneficial effects: in step S2, by adjusting the total station to make it coincide with the cross line of the center of the pile fixing chamber, the positions of the high and low position cylinder ear plates can be easily determined, thereby ensuring the installation accuracy of the high and low position cylinder ear plates; in step S4, by welding both sides of the high and low position cylinder ear plates, anti-deformation measures are provided, thereby ensuring the installation accuracy of the cylinder ear plates, eliminating the on-site machining process, and the operation is simple and easy to implement.

[0013] In the preferred or optional solution, before step S1, check and ensure that the high and low oil cylinder ear plates have been fully finished in place as shown in the parts drawing. Ensure that the high and low oil cylinder ear plate products are qualified before welding, which is convenient for subsequent construction.

[0014] In the preferred or optional solution, in step S2, the third cross line and the sample punching point are respectively drawn at the center of both sides of the high and low oil cylinder ear plates, so as to serve as the detection reference point during the installation and inspection of the ear plates, thereby ensuring the installation accuracy of the oil cylinder ear plates.

[0015] In the preferred or optional solution, the welding in step S3 is required to be performed in accordance with the WPS welding requirements approved by the ship inspection, and the preheating temperature of the steel plate before welding needs to be above 150°C, and the temperature maintained during welding is 300±15°C for more than 2 hours. Strictly require welding to be performed in accordance with the WPS approved by the ship inspection, and control the temperature to ensure the welding effect.

[0016] In the preferred or optional solution, in step S3, when welding one-third of the way, the verticality of the high and low cylinder ear plates is checked by a plumb bob and is taken as the key control content. Then, when welding is halfway, the verticality is re-measured to avoid precision deviation. If the precision has been exceeded, and one side of the high and low cylinder ear plates is tilted, the other side of the high and low cylinder ear plates is welded to correct the precision deviation. After welding, the whole is measured again. During the welding process, the ear plates are repeatedly checked to ensure the precision of the ear plate welding, and when the precision deviation occurs, it can be corrected in time.

[0017] In a preferred or optional solution, in step S4, if the high and low oil cylinder ear plates are tilted to one side due to welding, the welding of the tilted side is stopped, and the other side of the high and low oil cylinder ear plates is welded, and double-sided welding is performed simultaneously after the deformation is adjusted. When welding errors occur, the ear plates can be corrected in time to facilitate anti-deformation measures.

[0018] In a preferred or optional solution, the welding equipment comprises:

[0019] frame;

[0020] Welding device, mounted on the frame;

[0021] A clamping device, arranged on the frame;

[0022] The hull structure pile fixing chamber is mounted on the frame by means of a clamping device;

[0023] There are at least two sets of welding devices, which are symmetrically arranged at both ends of the pile fixing chamber of the hull structure. The welding devices include a first displacement assembly arranged on the frame, a second displacement assembly arranged on the first displacement assembly, a lifting assembly installed on the second displacement assembly, and a welding gun symmetrically arranged on the lifting assembly;

[0024] The first displacement assembly includes:

[0025] A first support frame is fixed on the frame;

[0026] A first motor is mounted on the first support frame;

[0027] A first screw rod is rotatably mounted on the first support frame, and one end of the first screw rod is connected to an output end of the first motor;

[0028] A first threaded seat is sleeved on the first screw rod and is threadedly connected to the first screw rod;

[0029] There are at least two groups of clamping devices, which are symmetrically arranged at both ends of the pile fixing chamber of the hull structure, and the clamping devices include:

[0030] The first cylinder is fixed on the frame;

[0031] A clamping plate, fixedly mounted on the piston rod of the first cylinder;

[0032] One end of the clamping plate is in contact with the outer wall of the pile fixing chamber of the hull structure.

[0033] First, the hull structure pile fixing chamber is installed on the frame through the clamping device, and then the high and low position cylinder ear plates are distributed on the hull structure pile fixing chamber sections. Then, under the action of the first displacement component, the second displacement component and the lifting component, the welding gun is moved to the designated position to perform double-sided simultaneous welding of the high and low position cylinder ear plates, thereby improving the processing efficiency and reducing labor costs.

[0034] In a preferred or optional solution, the second displacement assembly includes:

[0035] A second support frame is fixedly mounted on the first threaded seat;

[0036] A second motor is mounted on the second support frame;

[0037] A second screw rod is rotatably mounted on the second support frame, and one end of the second screw rod is connected to an output end of the second motor;

[0038] The second threaded seat is sleeved on the second screw rod and is threadedly connected to the second screw rod. The second motor drives the second screw rod to rotate, and the second screw rod drives the second threaded seat to move, so as to provide a movement stroke for the welding gun, ensure that the welding gun moves to a specified position, and ensure the welding accuracy of the welding gun to the cylinder ear plate.

[0039] In a preferred or optional solution, the lifting assembly includes:

[0040] A first connecting frame, fixedly mounted on the second threaded seat;

[0041] A third motor is mounted on the first connecting frame;

[0042] A third screw rod is rotatably mounted on the first connecting frame, and one end of the third screw rod is connected to an output end of the third motor;

[0043] A third threaded seat is sleeved on the third screw rod and is threadedly connected to the third screw rod;

[0044] A second connecting frame is fixedly mounted on the third threaded seat;

[0045] The slide rails are symmetrically arranged on the first connecting frame;

[0046] The slider is symmetrically arranged on the second connecting frame and slidably cooperates with the slide rail. The third motor drives the third screw rod to rotate, the third screw rod drives the third threaded seat to move, and the third threaded seat drives the second connecting frame to move, providing a lifting motion stroke for the welding gun, ensuring that the welding gun moves to the specified position, and ensuring the welding accuracy of the welding gun to the cylinder ear plate. Under the action of the slider and the slide rail, stability is provided for the movement of the second connecting frame.

[0047] In a preferred or optional solution, the lifting assembly further comprises:

[0048] A second cylinder is mounted on the second connecting frame;

[0049] A first connecting shaft is provided on the piston rod of the second cylinder;

[0050] A third connecting frame, fixedly arranged on one end of the first connecting shaft;

[0051] The guide rods are symmetrically fixed on the second connecting frame;

[0052] One end of the guide rod passes through the third connecting frame and is slidably matched with the third connecting frame. The welding gun is installed on the second connecting frame. The first connecting shaft is driven down by the second cylinder, and the first connecting shaft drives the third connecting frame to move, so as to fine-tune the height of the welding gun to ensure the welding accuracy. Under the action of the guide rod, the movement of the third connecting frame is provided with stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] Figure 1 The overall structure of the welding equipment in the embodiment of the present invention is Figure 1 ;

[0054] Figure 2 for Figure 1 A magnified view of part A;

[0055] Figure 3 The overall structure of the welding equipment in the embodiment of the present invention is Figure 2 ;

[0056] Figure 4 for Figure 3 A magnified view of part B;

[0057] Figure 5 The overall structure of the welding equipment in the embodiment of the present invention is Figure 3 ;

[0058] Figure 6 for Figure 5 Enlarged view of part C;

[0059] Figure 7 The overall structure of the welding equipment in the embodiment of the present invention is Figure 4 ;

[0060] Figure 8 is a partial structural schematic diagram of the welding equipment in the embodiment of the present invention, mainly showing the support assembly Figure 1 ;

[0061] Fig. 9 is a partial structural schematic diagram of the welding equipment in the embodiment of the present invention, mainly showing the support assembly Figure 2 ;

[0062] Fig.10 This is a cylinder of a latch-type lifting device in an embodiment of the present invention.

[0063] Description of reference numerals:

[0064] 1. Frame;

[0065] 2. Hull structure pile fixing chamber;

[0066] 3. Oil cylinder; 300. High oil cylinder ear plate; 301. Low oil cylinder ear plate;

[0067] 4. Clamping device; 400. First cylinder; 401. Clamping plate;

[0068] 5. First displacement assembly; 500. First support frame; 501. First motor; 502. First screw rod; 503. First threaded seat;

[0069] 6. Second displacement assembly; 600. Second support frame; 601. Second motor; 602. Second screw rod; 603. Second threaded seat;

[0070] 7. Lifting assembly; 700. First connecting frame; 701. Third motor; 702. Third screw rod; 703. Second connecting frame; 704. Slide rail; 705. Sliding block; 706. Second cylinder; 707. First connecting shaft; 708. Third connecting frame; 709. Guide rod; 710. Fourth motor; 711. Rotating disk; 712. Support plate; 713. Fixed ring;

[0071] 8. Welding gun;

[0072] 9. Fixing device; 900. Third supporting frame; 901. First fixing rod; 902. Third cylinder; 903. Second connecting shaft; 904. Connecting plate; 905. Second fixing rod; 906. Casing; 907. Fifth motor; 908. First gear; 909. Second gear; 910. Transmission member; 911. Abutment plate; 912. Accommodating chamber; 913. First pin shaft; 914. First connecting rod; 915. Second pin shaft; 916. Second connecting rod; 917. First limiting groove; 918. First limiting rod; 919. Second limiting groove; 920. Second limiting rod. DETAILED DESCRIPTION

[0073] First, those skilled in the art should understand that these implementations are only used to explain the technical principles of the embodiments of the present application, and are not intended to limit the protection scope of the embodiments of the present application. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.

[0074] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0075] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0076] The present application is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0077] The present application embodiment discloses a process for installing an oil cylinder ear plate of a press pin type lifting device, comprising the steps of:

[0078] S1: Distribute the high-position oil cylinder ear plate 300 and the low-position oil cylinder ear plate 301 on the pile fixing chamber 2 of the hull structure;

[0079] S2: A first cross line is drawn at the center of the pile fixing chamber, and a total station is set up above the first cross line. The light emitted by the total station has a second cross line. The first cross line coincides with the second cross line. The positions of the high-position oil cylinder ear plate 300 and the low-position oil cylinder ear plate 301 are determined according to the illumination of the total station.

[0080] S3: welding the high-position oil cylinder ear plate 300 and the low-position oil cylinder ear plate 301 by welding equipment;

[0081] S4: Symmetrically weld both sides of the high-position oil cylinder ear plate 300 and the low-position oil cylinder ear plate 301;

[0082] S5: After welding is completed, perform UT+MT inspection on the weld.

[0083] In step S2, the total station is adjusted to coincide with the crosshairs of the center of the pile fixing chamber, and the positions of the high-position cylinder ear plate 300 and the low-position cylinder ear plate 301 are found out by illuminating with the total station according to the positioning diagram of the ear plate of the oil cylinder 3, and lines and marks are made on the structure of the pile fixing chamber to ensure the installation accuracy of the high-position cylinder ear plate 300 and the low-position cylinder ear plate 301; in step S4, the high-position cylinder ear plate 300 and the low-position cylinder ear plate 301 are welded on both sides to provide anti-deformation measures, thereby ensuring the installation accuracy of the ear plate of the oil cylinder 3, eliminating the on-site machining process, and the operation is simple and easy to implement.

[0084] Before step S1, first check and ensure that the high-position oil cylinder ear plate 300 and the low-position oil cylinder ear plate 301 have been fully finished in place as shown in the parts drawing. Ensure that the high-position oil cylinder ear plate 300 and the low-position oil cylinder ear plate 301 products are qualified before welding, which is convenient for subsequent construction.

[0085] In step S2, the third cross line and sample punching points are drawn at the center of both sides of the high-position oil cylinder ear plate 300 and the low-position oil cylinder ear plate 301, respectively, to serve as the detection reference point during the ear plate installation and inspection process, so as to ensure the installation accuracy of the oil cylinder 3 ear plate.

[0086] In step S3, welding is required to be performed in accordance with the WPS welding requirements approved by the ship inspection, and the preheating temperature of the EH36 steel plate before welding must be above 150°C, and the temperature maintained during welding is 300±15°C for more than 2 hours. Welding must be strictly performed in accordance with the WPS approved by the ship inspection, and the temperature must be controlled to ensure the welding effect.

[0087] In step S3, in order to improve the precision control during welding and reduce the welding deformation of the lug plate of the oil cylinder 3, it is necessary to perform shape control on the processing device, and reduce the welding deformation according to the welding guidance process and welding sequence. And the control method of the precision process of the high-position oil cylinder lug plate 300 and the low-position oil cylinder lug plate 301 can be used to check the verticality of the high-position oil cylinder lug plate 300 and the low-position oil cylinder lug plate 301 by a plumb bob when welding one-third, and use it as the key control content, and then re-measure it when welding is halfway to avoid precision deviation; if the precision has exceeded the deviation, at this time, the high-position oil cylinder lug plate 300 and the low-position oil cylinder lug plate 301 appear tilted on one side, then the high-position oil cylinder lug plate 300 and the low-position oil cylinder lug plate 301 are welded on the other side to correct the precision deviation; after welding, the overall measurement is performed. During the welding process, the lug plate is repeatedly checked to ensure the precision of the lug plate welding, and when the precision deviation occurs, it can be corrected in time. Thereby controlling the deviation of the positioning dimensions in each direction.

[0088] In step S4, if the high-position oil cylinder ear plate 300 and the low-position oil cylinder ear plate 301 are tilted to one side due to welding, the welding of the tilted side is stopped, and the other side of the high-position oil cylinder ear plate 300 and the low-position oil cylinder ear plate 301 is welded. After the deformation is adjusted, the double-sided welding is performed simultaneously. When welding errors occur, the ear plates can be corrected in time to facilitate deformation prevention measures.

[0089] In step S4, the double-sided groove welds of the high-position oil cylinder ear plate 300 and the low-position oil cylinder ear plate 301 are welded symmetrically as much as possible, and two welders may weld both sides simultaneously to prevent deformation.

[0090] See also Figures 1 to 10 As shown, in other embodiments, the present application can use mechanization to realize automatic welding of welding equipment to reduce labor costs. The welding equipment includes a frame 1, a welding device, and a clamping device 4; the welding device is at least two groups, and four groups of welding devices are used in this embodiment, which are symmetrically arranged on the end faces of the hull structure pile fixing chamber 2. The clamping device 4 is also at least two groups, and the present application is preferably four groups. The clamping device 4 is arranged on the frame 1, and the hull structure pile fixing chamber 2 is installed on the frame 1 through the clamping device 4. Among them, the clamping device 4 includes a first cylinder 400 and a clamping plate 401; the first cylinder 400 is fixedly arranged on the frame 1, the clamping plate 401 is fixedly arranged on the piston rod of the first cylinder 400, and one end of the clamping plate 401 abuts against the outer wall of the hull structure pile fixing chamber 2. The welding device includes a first displacement assembly 5 arranged on the frame 1, a second displacement assembly 6 arranged on the first displacement assembly 5, a lifting assembly 7 installed on the second displacement assembly 6, and a welding gun 8 symmetrically arranged on the lifting assembly 7. First, the hull structure pile fixing chamber 2 is installed on the frame 1 through the clamping device 4, and then the high and low cylinder ear plates 301 are distributed on the sections of the hull structure pile fixing chamber 2. Then, under the action of the first displacement component 5, the second displacement component 6 and the lifting component 7, the welding gun 8 is moved to the specified position to perform double-sided simultaneous welding of the high and low cylinder ear plates 301, thereby improving the processing efficiency and reducing labor costs.

[0091] See also Figure 1 to Figure 4As shown, the first displacement assembly includes a first support frame 500, a first motor 501, a first screw rod 502, and a first threaded seat 503; the first support frame 500 is fixedly arranged on the frame 1, the first motor 501 is installed on the first support frame 500, the first screw rod 502 is rotatably arranged on the first support frame 500, and one end is connected to the output end of the first motor 501, and the first threaded seat 503 is sleeved on the first screw rod 502 and is threadedly connected to the first screw rod 502. The second displacement assembly 6 includes a second support frame 600, a second motor 601, a second screw rod 602, and a second threaded seat 603; the second support frame 600 is fixedly arranged on the first threaded seat 503, the second motor 601 is installed on the second support frame 600, the second screw rod 602 is rotatably arranged on the second support frame 600, and one end is connected to the output end of the second motor 601, and the second threaded seat 603 is sleeved on the second screw rod 602 and is threadedly connected to the second screw rod 602. The first motor 501 drives the first screw rod 502 to rotate, the first screw rod 502 drives the first threaded seat 503 to move, and the first threaded seat 503 drives the second support frame 600 to move to the specified position. Then, the second motor 601 drives the second screw rod 602 to rotate, and the second screw rod 602 drives the second threaded seat 603 to move, so as to provide a movement stroke for the welding gun 8, thereby ensuring that the welding gun 8 moves to the specified position and the welding accuracy of the welding gun 8 on the ear plate of the cylinder 3 is ensured.

[0092] See also Figures 4 to 6 As shown, the lifting assembly 7 includes a first connecting frame 700, a third motor 701, a third screw rod 702, a third threaded seat, a second connecting frame 703, a slide rail 704, and a slider 705; the first connecting frame 700 is fixedly arranged on the second threaded seat 603, the third motor 701 is installed on the first connecting frame 700, the third screw rod 702 is rotatably arranged on the first connecting frame 700, and one end is connected to the output end of the third motor 701, the third threaded seat is sleeved on the third screw rod 702, and is threadedly connected to the third screw rod 702, the second connecting frame 703 is fixedly arranged on the third threaded seat, the slide rail 704 is symmetrically arranged on the first connecting frame 700, and the slider 705 is symmetrically arranged on the second connecting frame 703, and slides with the slide rail 704. The third motor 701 drives the third screw rod 702 to rotate, the third screw rod 702 drives the third threaded seat to move, and the third threaded seat drives the second connecting frame 703 to move, providing a lifting motion stroke for the welding gun 8, ensuring that the welding gun 8 moves to a specified position, and ensuring the welding accuracy of the welding gun 8 to the lug plate of the oil cylinder 3. Under the action of the slider 705 and the slide rail 704, stability is provided for the movement of the second connecting frame 703.

[0093] See also Figures 4 to 6As shown, the lifting assembly 7 also includes a second cylinder 706, a first connecting shaft 707, a third connecting frame 708, and a guide rod 709; the second cylinder 706 is installed on the second connecting frame 703, the first connecting shaft 707 is arranged on the piston rod of the second cylinder 706, the third connecting frame 708 is fixedly arranged on one end of the first connecting shaft 707, the guide rod 709 is symmetrically fixedly arranged on the second connecting frame 703, one end of the guide rod 709 penetrates the third connecting frame 708, and slides with the third connecting frame 708, and the welding gun 8 is installed on the second connecting frame 703. The first connecting shaft 707 is driven to descend by the second cylinder 706, and the first connecting shaft 707 drives the third connecting frame 708 to move, so as to fine-tune the height of the welding gun 8 to ensure the accuracy of welding. Under the action of the guide rod 709, stability is provided for the movement of the third connecting frame 708.

[0094] See also Figure 6 As shown, the third connecting frame 708 is further provided with a fourth motor 710, and a rotating disk 711 is provided on the output end of the fourth motor 710, and a supporting plate 712 is provided on the rotating disk 711, and a fixing ring 713 for fixing the welding gun 8 is provided on the supporting plate 712. Driven by the fourth motor 710, the rotating disk 711 and the supporting plate 712 are driven to rotate, thereby driving the rotation of the welding gun 8, and adjusting the angle of the welding gun 8, so as to facilitate better and more accurate welding work on some high and low cylinder ear plates 301 installed at a certain angle.

[0095] See also Figure 7 to Figure 9 As shown, the welding equipment also includes a fixing device 9 for supporting the pile fixing chamber 2 of the hull structure; the fixing device 9 includes a third support frame 900, a first fixing rod 901, a third cylinder 902, a second connecting shaft 903, a connecting plate 904, a second fixing rod 905, and a supporting assembly; the fixing rod is fixedly arranged at the bottom of the frame 1, the third support frame 900 is fixedly arranged at the bottom of the frame 1 through the fixing rod, the third cylinder 902 is installed on the third support frame 900, the second connecting shaft 903 is connected to the piston rod of the third cylinder 902, the connecting plate 904 is fixedly arranged on the second connecting shaft 903, the second fixing rod 905 is a plurality of pieces and fixedly arranged on the connecting plate 904, and the supporting assembly is installed on the second fixing rod 905. The second connecting shaft 903 is driven to rise and fall by the third cylinder 902, and the second connecting shaft 903 drives the connecting plate 904, the second fixing rod 905, and the supporting assembly to rise and fall together.

[0096] See also Figure 7 to Figure 9As shown, the support assembly includes a shell 906, a fifth motor 907, a first gear 908, a second gear 909, a transmission member 910, and an abutment plate 911; the shell 906 is fixedly arranged on the second fixed rod 905, and a accommodating cavity 912 is opened in the shell 906. The fifth motor 907 is installed at the bottom of the shell 906. The first gear 908 is rotatably located in the accommodating cavity 912, and one end is fixedly connected to the output end of the fifth motor 907. The second gear 909 is rotatably arranged in the accommodating cavity 912 and meshed with the first gear 908. The transmission member 910 and the abutment plate 911 are both in a plurality of groups, and the plurality of abutment plates 911 form a circular contour.

[0097] See also Figure 7 to Figure 9 As shown, the transmission member 910 includes a first pin shaft 913, a first connecting rod 914, a second pin shaft 915, and a second connecting rod 916; the first pin shaft 913 is fixedly arranged on the second gear 909, the first connecting rod 914 is rotatably arranged on the first pin shaft, the second pin shaft 915 is fixedly arranged on the first connecting rod 914, the second connecting rod 916 is rotatably arranged on the second pin shaft 915, and the abutment plate 911 is fixedly arranged on the second connecting rod 916. Among them, a first limiting groove 917 is provided on the second gear 909, and the limiting groove is in an arc shape. A first limiting rod 918 is provided in the first limiting groove 917, and both ends of the first limiting rod 918 are fixedly arranged on the inner wall of the accommodating cavity 912, and a second limiting groove 919 is provided on the inner wall of the accommodating cavity 912, and a second limiting rod 920 embedded in the second limiting groove 919 is provided on the second connecting rod 916. The first gear 908 is driven to rotate by the fifth motor 907, and the first gear 908 drives the second gear 909 to rotate. During the rotation of the second gear 909, the first connecting rod 914 is driven, and the first connecting rod 914 drives the second connecting rod 916 to move, and the second connecting rod 916 drives the abutment plate 911 to move. One end of the abutment plate 911 abuts against the end surface of the hull structure pile fixing chamber 2 to fix the hull structure pile fixing chamber 2 to ensure stability during the welding process. At the same time, under the action of the second limiting groove 919 and the second limiting rod 920, it is ensured that a plurality of abutment plates 911 can form a circular shape when moving.

[0098] In the description of the embodiments of the present application, it should be noted that in the description of the present application, terms such as "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings. This is only for the convenience of description, and does not indicate or imply that the device or component must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it cannot be understood as a limitation on the present application.

[0099] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "in the present embodiment", "specific example", or "some examples" etc. means that the specific features, mechanisms, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, mechanisms, materials or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0100] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A hydraulic pin-type lifting device cylinder ear plate installation process, characterized in that: include: S1: Distribute the high and low cylinder lugs on the pile fixing chamber of the hull structure; S2: Draw a first cross line at the center of the pile fixing chamber, and set up a total station above the first cross line. The light emitted by the total station has a second cross line. The first cross line coincides with the second cross line. The positions of the high and low cylinder lugs are determined according to the illumination of the total station. S3: Weld the high and low cylinder ear plates using welding equipment; S4: Symmetrically weld both sides of the high and low cylinder ear plates; S5: After welding is completed, perform UT+MT inspection on the weld.

2. The hydraulic latch type lifting device cylinder ear plate installation process according to claim 1 is characterized in that: Before step S1, check and ensure that the high and low cylinder ear plates have been fully finished in place as shown in the parts drawing.

3. The hydraulic latch type lifting device cylinder ear plate installation process according to claim 1 is characterized in that: In step S2, the third cross line and sample punching points are drawn at the centers of both sides of the high and low cylinder ear plates, respectively, to serve as detection reference points during the installation and inspection of the ear plates.

4. The hydraulic latch type lifting device cylinder ear plate installation process according to claim 1 is characterized in that: The welding in step S3 is required to be performed in accordance with the WPS welding requirements approved by ship inspection, and the preheating temperature of the steel plate before welding needs to be above 150°C, and the temperature maintained during welding is 300±15°C for more than 2 hours.

5. The hydraulic latch type lifting device cylinder ear plate installation process according to claim 4 is characterized in that: In step S3, when welding one-third of the way, the verticality of the high and low cylinder ear plates is checked by a plumb bob and is taken as the key control content. Then, when welding is halfway, the verticality is re-checked to avoid precision deviation. If the precision has exceeded the deviation and one side of the high and low cylinder ear plates is tilted, the other side of the high and low cylinder ear plates is welded to correct the precision deviation. After welding, the whole is measured again.

6. The hydraulic latch type lifting device cylinder ear plate installation process according to claim 1 is characterized in that: In step S4, if the high and low cylinder ear plates are tilted to one side due to welding, the welding of the tilted side is stopped, and the other side of the high and low cylinder ear plates is welded. After the deformation is adjusted, double-sided welding is performed simultaneously.

7. Welding equipment for use in the hydraulic latch type lifting device cylinder ear plate installation process as claimed in any one of claims 1 to 6, characterized in that: include: Rack (1); A welding device, mounted on the frame (1); A clamping device (4) is arranged on the frame (1); The hull structure pile fixing chamber (2) is installed on the frame (1) through the clamping device (4); The welding device comprises at least two groups, and is symmetrically arranged at both ends of the hull structure pile fixing chamber (2), and the welding device comprises a first displacement assembly (5) arranged on the frame (1), a second displacement assembly (6) arranged on the first displacement assembly (5), a lifting assembly (7) installed on the second displacement assembly (6), and a welding gun (8) symmetrically arranged on the lifting assembly (7); The first displacement assembly (5) comprises: A first support frame (500) is fixedly mounted on the frame (1); A first motor (501), mounted on the first support frame (500); A first screw rod (502) is rotatably mounted on the first support frame (500), and one end of the first screw rod is connected to the output end of the first motor (501); A first threaded seat (503) is sleeved on the first screw rod (502) and is threadedly connected to the first screw rod (502); The clamping device (4) comprises at least two groups, which are symmetrically arranged at the two ends of the pile fixing chamber (2) of the hull structure. The clamping device (4) comprises: A first cylinder (400) is fixedly mounted on the frame (1); A clamping plate (401) fixedly mounted on the piston rod of the first cylinder (400); One end of the clamping plate (401) is in contact with the outer wall of the pile fixing chamber (2) of the hull structure.

8. The welding device according to claim 7, characterized in that: The second displacement assembly (6) comprises: A second support frame (600) is fixedly mounted on the first threaded seat (503); A second motor (601) is mounted on the second support frame (600); A second screw rod (602) is rotatably mounted on the second support frame (600), and one end of the second screw rod is connected to the output end of the second motor (601); The second threaded seat (603) is sleeved on the second screw rod (602) and is threadedly connected to the second screw rod (602).

9. The welding device according to claim 8, characterized in that: The lifting assembly (7) comprises: A first connecting frame (700) is fixedly mounted on the second threaded seat (603); A third motor (701) is mounted on the first connecting frame (700); A third screw rod (702) is rotatably mounted on the first connecting frame (700), and one end of the third screw rod is connected to the output end of the third motor (701); A third threaded seat, sleeved on the third screw rod (702) and threadedly connected to the third screw rod (702); A second connecting frame (703) is fixedly mounted on the third threaded seat; A slide rail (704) symmetrically arranged on the first connecting frame (700); The sliding block (705) is symmetrically arranged on the second connecting frame (703) and is slidably matched with the sliding rail (704).

10. The welding device according to claim 9, characterized in that: The lifting assembly (7) further comprises: A second cylinder (706) is mounted on the second connecting frame (703); A first connecting shaft (707) is arranged on the piston rod of the second cylinder (706); A third connecting frame (708) is fixedly mounted on one end of the first connecting shaft (707); A guide rod (709) is symmetrically fixed on the second connecting frame (703); One end of the guide rod (709) passes through the third connecting frame (708) and is slidably matched with the third connecting frame (708), and the welding gun (8) is installed on the second connecting frame (703).

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