Pressing device for LNG fuel transport ship corrugated plate training
By designing a corrugated plate training compression device using worm gear and worm transmission and rack, the problem of insufficient compression during welding of corrugated plates in the prior art is solved, effective compression of corrugated plates and welding quality are improved, and training efficiency is improved.
Patent Information
- Application Number
- CN202421830250.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-31
AI Technical Summary
In the prior art, when welding the corrugated plates of LNG fuel transport ships, due to the size limitation of the magnitude of the magnitude pliers, the two middle welds cannot be effectively pressed, resulting in deformation of the corrugated plate after welding, affecting the welding quality of the lower welds. The number of magnitude pliers used is limited, and the compression effect of the training plate cannot be guaranteed, resulting in low training efficiency.
A compression device for corrugated plate training in LNG fuel transport ships is designed, using worm gear and worm transmission and rack matching, and the movement of the column is achieved through the connection parts and brackets, the flat part of the corrugated plate is achieved by using rubber pads and springs, and the length adjustment of the device is achieved through the fitting of the sliding grooves and screws.
It realizes effective compression of corrugated plates, reduces deformation of corrugated plates after welding, improves welding quality and training efficiency, and the device can be adjusted in length, suitable for workbenches of different lengths.
Smart Images
Figure CN222980089U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of corrugated plate welding, in particular to a pressing device for training the corrugated plates of an LNG fuel transport ship. Background Technique
[0002] The main screen wall of the MARKIII patented technology of the French company GTT is formed by welding stainless steel corrugated plates with a thickness of 1.2 mm, which requires very high welding level and stability of workers. The training cost of workers is between 200,000 and 250,000 yuan per person. The training investment cost is high but the efficiency is low. The conventional method of welding corrugated plates during training is to form a plate with 6 welds by spot welding 7 corrugated plates. During welding, a deep-throat strong clamp is used to press the corrugated plate training plate beside the weld to reduce the influence of the deformation of the training plate after welding on the welding quality of the next weld.
[0003] However, during the training welding process, since the throat depth of the strong clamp on the market is generally about 300 mm, and the width of the training plate assembly is about 825 mm, the two middle welds cannot be well pressed; when the strong clamp is installed, it will protrude outside the plate, affecting the standing position of the worker during welding, which is very inconvenient; moreover, the number of strong clamps used is limited, and the pressing effect of the training plate cannot be guaranteed, often resulting in the deformation of the training plate after welding, affecting the welding of the next weld. Therefore, a special pressing device for training during corrugated plate welding is designed to reduce the post-welding deformation of the training plate and improve the training efficiency. Content of the Utility Model
[0004] The purpose of the utility model is to provide a pressing device for training the corrugated plates of an LNG fuel transport ship to solve the problems raised in the above background technique.
[0005] To solve the above technical problems, the utility model provides the following technical solution: A pressing device for training the corrugated plates of an LNG fuel transport ship, including a first square tube, on which a number of columns are penetrated. The columns are arranged linearly. A connecting piece is welded to the top of the column. A bracket is welded above the first square tube. A worm is penetrated inside the bracket. One end of the worm serves as an operating end. Two worm wheels are arranged inside the first square tube. One of the worm wheels is arranged below the worm. A rack is arranged on one side of each of the two worm wheels. The rack is welded to the column on one side. A transmission shaft is penetrated through the center of the worm wheel. Transmission belts are penetrated through both ends of the transmission shaft. Two springs are respectively welded to both ends of the first square tube. The other ends of the two springs are welded to a second square tube. An opening is formed on one side of the second square tube. A fixing plate is welded inside the opening. A sliding groove is formed on the fixing plate. The length of the sliding groove is equal to the maximum stretching length within the elastic deformation of the spring;
[0006] According to the above technical solution, a pressing block is welded to the bottom of the column body, and a rubber pad is adhesively bonded to the bottom of the pressing block;
[0007] According to the above technical solution, the transmission shaft passes through the first square tube, and shaft caps are welded to both ends of the transmission shaft;
[0008] According to the above technical solution, a turntable is welded to one end of the worm;
[0009] According to the above technical solution, a screw rod is welded below the first square tube, and the screw rod is arranged in the sliding groove, and a nut is threadedly connected to one side of the screw rod;
[0010] According to the above technical solution, a support is welded to the bottom of the second square tube, a clamping plate is welded to one side of the second square tube, and a set screw is arranged through the center of the clamping plate.
[0011] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: For the present utility model,
[0012] (1) By setting the self-locking characteristic of the worm and worm gear transmission in cooperation with the rack, the gear is welded to a column body, and then the column body passing through the first square tube is connected through a connecting member. Manually rotating the turntable transmits the force through the mechanism until the rubber pad tightly presses on the corrugated plate, which is beneficial to realizing the pressing work on the flat part of the corrugated plate;
[0013] (2) By setting springs welded on both sides of the first square tube and inside the second square tube respectively, and the sliding cooperation between the sliding groove and the screw rod, it is beneficial for the device to cooperate with workbenches of different lengths for length adjustment work;
[0014] (3) By setting the support and the clamping plate welded on the second square tube, and the set screw threadedly connected to the clamping plate, it is beneficial for the self-support stability of the device and the fixing work on the workbench. Description of the Drawings
[0015] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:
[0016] Figure 1 is the overall axonometric structure schematic diagram of the present utility model;
[0017] Figure 2 is the overall front structure schematic diagram of the present utility model;
[0018] Figure 3 is the axonometric schematic diagram of the second square tube of the present utility model;
[0019] Figure 4It is an enlarged schematic diagram of area A of the present utility model;
[0020] In the figure: 1, square pipe one; 2, square pipe two; 21, notch; 3, column; 31, pressing block; 32, rubber pad; 33, rack; 34, connecting piece; 4, spring; 5, fixing plate; 51, sliding groove; 6, support; 7, screw rod; 8, nut; 9, clamping plate; 10, set screw; 11, worm gear; 111, transmission shaft; 112, shaft cover; 12, worm; 121, support; 122, turntable; 13, transmission belt. Specific embodiments
[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.
[0022] Please refer to Figures 1-4 , the present utility model provides a technical solution: a pressing device for LNG fuel transport ship corrugated plate training, including a square pipe one 1, several columns 3 are penetrated through the square pipe one 1, the columns 3 are linearly arranged, a connecting piece 34 is welded to the top of the column 3, a support 121 is welded above the square pipe one 1, a worm 12 is penetrated through the inside of the support 121, one end of the worm 12 is used as an operating end, two worm gears 11 are arranged inside the square pipe one 1, one of the worm gears 11 is arranged below the worm 12, the worm 12 and the worm gear 11 cooperate to realize worm and worm gear transmission, racks 33 are arranged on one side of the two worm gears 11, one side of the rack 33 is welded to the column 3, a transmission shaft 111 is penetrated through the center of the worm gear 11, the transmission shaft 111 is beneficial to fixing the worm gear 11, transmission belts 13 are penetrated through both sides of the transmission shaft 111, the transmission belts 13 rotate with the transmission shaft 111 and transmit the torque to the transmission shaft 111 on the other side, so as to drive the worm gear 11 and the rack 33 on the other side to mesh, so as to realize the simultaneous up and down movement of the columns 3 on the other side, ensure the simultaneous lifting and lowering of the columns 3 on both sides, and avoid the generation of height difference due to the movement of the columns 3 during the work process.
[0023] Two springs 4 are respectively welded to both ends of the square pipe one 1, and the other ends of the two springs 4 are both welded to the square pipe two 2. The springs 4 are beneficial to connecting the square pipe one 1 and the square pipe two 2, and can adjust the length of the pressing device for LNG fuel transport ship corrugated plate training through their own elastic deformation, so as to be well matched with workbenches of different lengths.
[0024] On one side of the square pipe two 2, there is a notch 21. Inside the notch 21, a fixing plate (5) is welded. The fixing plate 5 is beneficial to support the square pipe one 1. On the fixing plate 5, there is a sliding groove 51. The length of the sliding groove 51 is equal to the maximum stretching length within the elastic deformation of the spring 4. The sliding groove 51 is beneficial to cooperate with the spring 4 to realize the length adjustment work of the pressing device for LNG fuel carrier corrugated plate training to fit workbenches of different lengths.
[0025] At the bottom of the column 3, a pressing block 31 is welded. At the bottom of the pressing block 31, a rubber pad 32 is glued. The rubber pad 32 is beneficial to generate elastic deformation when the pressing block 31 presses the corrugated plate, so as to buffer the pressure and avoid scratches or grooves on the corrugated plate.
[0026] The transmission shaft 111 passes through the square pipe one 1. At both ends of the transmission shaft 111, shaft caps 112 are welded. The shaft caps 112 are beneficial to fix the position of the transmission shaft 111.
[0027] At one end of the worm 12, a turntable 122 is welded. The turntable 122 is beneficial for manual operation of its rotation to drive the worm 12 to rotate.
[0028] Below the square pipe one 1, a screw rod 7 is welded, and the screw rod 7 is arranged in the sliding groove 51. On one side of the screw rod 7, a nut 8 is threadedly connected. The nut 8 is beneficial for the connection and fixation work of the square pipe one 1 and the square pipe two 2;
[0029] At the bottom of the square pipe two 2, a support 6 is welded. On one side of the square pipe two 2, a clamping plate 9 is welded. In the center of the clamping plate 9, a set screw 10 is passed through. Rotating the set screw 10 for vertical displacement and cooperating with the support 6 and the clamping plate 9 is beneficial to complete the self-supporting stability of the pressing device for LNG fuel carrier corrugated plate training and its fixation on the workbench.
[0030] Working principle: Place the seven corrugated plates for training flat on the workbench. According to the length requirement of the workbench, pull the square tube 2 on both sides of the device. The square tube 2 drives the spring 4 to produce elastic deformation and stretch. At the same time, the screw 7 passing through the chute 51 is in threaded cooperation with the nut 8, which is beneficial to restricting the position between the square tube 1 and the square tube 2 so that it only produces left and right translational motion. Wait until the spring 4 is stretched to an appropriate length and the square tube 2 is closely attached to both sides of the workbench. Then move the device in the front and back directions to a suitable position on the corrugated plate plane, so that the workbench plane passes through between the support 6 and the clamping plate 9. Adjust the set screw 10 to tightly press it on the workbench surface to realize the fixing work of the device on the workbench; Rotate the turntable 122 to drive the worm 12 to rotate. Due to the cooperation of the worm and the worm gear, the worm wheel 11 is driven to rotate. The rotation of the worm wheel 11 meshes with the rack 33, thereby driving the column 3 welded on the rack 33 to move in the vertical direction. At the same time, due to the torque transmission of the transmission belt 13, the worm wheel 11 and the rack 33 on the other side are meshed, so that the column 3 on the other side moves accordingly. Also due to the connection of the connecting piece 34, the remaining columns 3 move accordingly until the rubber pad 32 is tightly pressed on the corrugated plate plane to realize the full pressing work of the corrugated plate. Since the worm and worm gear transmission has a self-locking characteristic, that is, the worm 12 can drive the worm wheel 11 to rotate, but the worm wheel 11 cannot drive the worm 12 to rotate, so that the device realizes the self-locking function without manually rotating the turntable 122, ensuring that the device will not move spontaneously due to the influence of gravity factors. This device not only helps to reduce the deformation of the corrugated plate after welding, but also reduces the welding training time of workers due to its convenience, improving the training efficiency.
[0031] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it should not be construed as a limitation of the present invention.
[0032] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A compression device for corrugated plate training of LNG fuel carrier, comprising a square tube (1), characterized in that: A plurality of columns (3) are provided on the square tube (1), the columns (3) are arranged in a linear manner, a connecting piece (34) is welded on the top of the column (3), a bracket (121) is welded on the top of the square tube (1), a worm (12) is provided inside the bracket (121), one end of the worm (12) serves as an operating end, two worm wheels (11) are provided inside the square tube (1), one of the worm wheels (11) is provided below the worm (12), a rack (33) is provided on one side of the two worm wheels (11), one side of the rack (33) is welded on the column (3), a transmission shaft (111) is provided in the center of the worm wheel (11), and transmission belts (13) are provided at both ends of the transmission shaft (111); Two springs (4) are welded to the two ends of the square tube (1), and the other ends of the two springs (4) are welded to the square tube (2). A notch (21) is provided on one side of the square tube (2), and a fixing plate (5) is welded inside the notch (21). A sliding groove (51) is provided on the fixing plate (5), and the length of the sliding groove (51) is equal to the maximum stretching length of the spring (4) within the elastic deformation.
2. The compression device for corrugated plate training of LNG fuel tanker according to claim 1, characterized in that: A pressing block (31) is welded to the bottom of the column (3), and a rubber pad (32) is glued to the bottom of the pressing block (31).
3. The compression device for corrugated plate training of LNG fuel tanker according to claim 2, characterized in that: The transmission shaft (111) passes through the square tube (1), and shaft covers (112) are welded to both ends of the transmission shaft (111).
4. The compression device for corrugated plate training of LNG fuel tanker according to claim 3 is characterized by: A rotating disc (122) is welded to one end of the worm (12).
5. The compression device for corrugated plate training of LNG fuel tanker according to claim 4, characterized in that: A screw rod (7) is welded below the square tube (1), and the screw rod (7) is inserted into the slide groove (51), and a nut (8) is threadedly connected to one side of the screw rod (7).
6. The LNG fuel tanker corrugated plate training pressing device according to claim 5 is characterized by: A support (6) is welded to the bottom of the second square tube (2), a clamping plate (9) is welded to one side of the second square tube (2), and a fixing screw (10) is passed through the center of the clamping plate (9).