A gripping device suitable for assembling large-size web T-beams

Abstract

This utility model proposes a gripping device suitable for assembling large-size web T-beams. It includes a steel base plate, a slide rail, a steel clamp, a pneumatic motor, a pulley block, a lifting plate, and a clamping cylinder. The slide rail is symmetrically suspended on the lower surface of the steel base plate. The steel clamp is suspended on the slide rail and has opposing clamping arms that close to hold the large-size web T-beam. The pneumatic motor is connected to the clamping arms and drives them to hold the large-size web T-beam. The pulley block is located on the inner side of the lower part of the clamping arms and has arranged pulleys. The lifting plate is located above the pulley block and is used to support the panel of the large-size web T-beam. The clamping cylinder is located above the lifting plate and laterally fixed to the clamping arms to clamp the panel of the large-size web T-beam. This device uses pulleys to contact both sides of the web of the large-size web T-beam, and the clamping cylinder applies pressure to and fixes the panel of the large-size web T-beam, preventing slippage or shaking during gripping.

Description

Technical Field

[0001] This utility model relates to large-size web T-beams in the field of shipbuilding, and in particular to a gripping device suitable for assembling large-size web T-beams. Background Technology

[0002] There are various methods for assembling T-beams during shipbuilding. With technological advancements, the mainstream method has become using mobile gantry cranes and auxiliary devices. These cranes move along tracks in the X, Y, and Z directions, and the auxiliary devices are then driven by pneumatic or hydraulic power sources to perform a series of assembly actions, including gripping, moving, and positioning the T-beams. However, with the development of shipbuilding technology and the changing applications, the web height of T-beams is gradually increasing. In some large ships, the web height of T-beams used in the girders exceeds 1500mm. In such cases, using conventional mobile gantry cranes and auxiliary devices for assembly becomes extremely difficult.

[0003] However, in the process of implementing the inventive technical solution in the embodiments of this application, the inventors of this application discovered that the above-mentioned technology has at least the following technical problems: The first problem is that the large web significantly increases the weight of the T-beam, and the clamping force of conventional auxiliary devices may not be able to effectively clamp the T-beam, which may cause slippage. The second problem is that the center of gravity of a T-beam with a large web is much lower than that of a T-beam with a small web, which limits the size of the web of the T-beam that can be grabbed by conventional auxiliary devices; if the distance from the center of gravity is far, there may be swaying during the lateral movement of the T-beam after it has been grabbed. When the aforementioned sliding or swaying phenomena occur, they not only significantly affect the assembly accuracy of the T-beam, but also pose certain safety hazards. Summary of the Invention

[0004] To address the shortcomings of existing technologies and the problem of slippage or wobbling during the gripping of large-sized web T-beams, this application provides a gripping device suitable for assembling large-sized web T-beams. This device increases the contact area between pulleys and both sides of the web of the large-sized web T-beam, while simultaneously applying pressure to the T-beam panel, thereby increasing the stability of the assembly process and ensuring assembly accuracy, thus solving the technical problem of slippage or wobbling during the gripping of large-sized web T-beams.

[0005] The solution adopted by the embodiments of this application to solve the technical problem is: A gripping device suitable for assembling large-size web T-beams includes a steel base plate, a slide rail, a steel clamp, a pneumatic motor, a pulley block, a lifting plate, and a clamping cylinder. The upper surface of the steel base plate is equipped with a quick connector for connection to the gantry's attached device; symmetrical rails are suspended on the lower surface of the steel base plate; steel clamps are suspended on the rails, each clamp having opposing clamping arms that close together to hold a large-sized web T-beam; a pneumatic motor is connected to the clamping arms and is used to drive the clamping arms to hold the large-sized web T-beam; a pulley block is located on the inner side of the lower part of the clamping arms of the steel clamp, and the pulley block has arranged pulleys; a lifting plate is located above the pulley block and is used to lift the large-sized web T-beam panel; a clamping cylinder is located above the lifting plate and is laterally fixed to the clamping arms of the steel clamp, used to clamp the large-sized web T-beam panel.

[0006] In order to further solve the technical problems to be solved by the embodiments of this application, the steel clamp provided in the embodiments of this application includes a clamping arm, a slider and a lead screw; The clamping arm has ribs on both sides to enhance its strength; a slider is provided at the top of the clamping arm and is suspended on the slide rail; the slider is threadedly connected to the lead screw, which has threads with opposite directions of rotation, and the slider and lead screw are matched with each other; when the lead screw rotates, the slider moves in opposite directions along the lead screw axis, causing the clamping arm to close or open; the lead screw is cantilevered and fixed in the middle of the slide rail, and the outer end of the lead screw is connected to the pneumatic motor.

[0007] Furthermore, the pulley block includes pulleys and a base; the base has a U-shaped structure, through which the pulley block is laterally fixed to the inside of the clamping arm; the pulleys are arranged on the base for contacting the web of the large-size web T-beam.

[0008] Furthermore, there are four pulleys.

[0009] Furthermore, the lifting plate includes a support plate and a diagonal brace; the support plate is a rectangular plate, vertically connected to the inner side of the clamping arm, and the support plate contacts the lower surface of the large-size web T-beam panel. The upper surface of the support plate is smooth and flat, used to support the large-size web T-beam panel; the diagonal brace is a triangular plate, one side of which is connected to the inner side of the clamping arm, and the other side is connected to the lower surface of the support plate.

[0010] Furthermore, the lifting plate is positioned above the pulley block, so that when the large-sized web T-beam rests on the support plate, the center of gravity of the large-sized web T-beam is higher than the lower end of the pulley block.

[0011] Furthermore, the front end of the push rod of the pressing cylinder is equipped with a pressure plate, which contacts the upper surface of the large-size web T-beam panel, pressing the large-size web T-beam panel firmly onto the lifting plate.

[0012] Preferably, the minimum gap between the pressure plate of the clamping cylinder and the support plate of the lifting plate is greater than the thickness of the large-size web T-beam panel, so that the large-size web T-beam panel can be mounted on the lifting plate.

[0013] Positive effects: The technical solutions provided in this application embodiment have at least the following technical effects or advantages: 1. Because the embodiments of this application adopt the technical means of setting a pulley block on the inner side of the clamping arm, the pulley block rolls in contact with the web of the large-size web T-beam, which effectively solves the technical problem of sliding or shaking during the gripping process of the large-size web T-beam in the prior art. It can avoid the phenomenon of shaking during the gripping process of the large-size web T-beam, thereby achieving the technical effect of increasing the stability of the T-beam assembly process and ensuring the assembly accuracy.

[0014] 2. Because the embodiments of this application adopt the technical means of placing a large-size web T-beam on a lifting plate and setting a clamping cylinder above the lifting plate, the top rod of the clamping cylinder presses down and fixes the panel of the large-size web T-beam, which effectively solves the technical problem of sliding or shaking during the gripping process of the large-size web T-beam in the prior art. It can avoid the phenomenon of sliding during the gripping process of the large-size web T-beam, thereby achieving the technical effect of increasing the stability of the T-beam assembly process and ensuring the assembly accuracy.

[0015] In summary, it is suitable for use as a gripping device for assembling large-size web T-beams. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is the main view of the structure in this embodiment; Figure 2 This is a side view of the structure in this embodiment; Figure 3 This is a schematic diagram of the working state of this embodiment.

[0018] In the figure, 1. steel base plate, 2. slide rail, 3. steel clamp, 31. clamping arm, 311. rib plate, 32. slider, 33. lead screw, 4. pneumatic motor, 5. pulley block, 6. lifting plate, 7. clamping cylinder, 8. large-size web T-beam. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0020] This application provides a gripping device suitable for assembling large-size web T-beams, solving the problems of slippage or wobbling that easily occur during the gripping process of large-size web T-beams in the prior art. By using pulleys to increase contact with both sides of the web during the gripping process, the device effectively solves the wobbling problem. Simultaneously, pressure is applied to the T-beam panel, changing the traditional clamping method for gripping T-beams, and thus addressing potential slippage during the "lifting" of the large-size web T-beam and the "pressing" of its panel. This effectively ensures the assembly quality of large-size web T-beams and eliminates potential safety hazards.

[0021] As shown in the figure, a gripping device suitable for assembling large-size web T-beams includes a steel base plate 1, a slide rail 2, a steel clamp 3, a pneumatic motor 4, a pulley block 5, a lifting plate 6, and a clamping cylinder 7. The steel base plate 1 is a rectangular plate, which serves as the assembly platform for the gripping device. A quick connector is provided on the upper surface of the steel base plate 1 to connect with the gantry-attached device for hoisting operations. The slide rails 2 are symmetrically suspended on the lower surface of the steel base plate 1; The steel clamp 3 is hoisted on the slide rail 2. The steel clamp 3 has opposing clamping arms 31. The two clamping arms 31 close together to clamp the large-size web T-beam 8. The pneumatic motor 4 is connected to the clamping arm 31 and is used to drive the clamping arm 31 to clamp the large web T-beam 8. The pulley block 5 is located on the inner side of the lower part of the clamping arm 31 of the steel clamp 3. The pulley block 5 has a series of pulleys for rolling contact with the web of the large-size web T-beam 8, so as to avoid the phenomenon of shaking during the gripping process of the large-size web T-beam 8. The lifting plate 6 is set above the pulley block 5 to support the panel of the large-size web T-beam 8, thereby carrying the large-size web T-beam 8 for hoisting. The clamping cylinder 7 is positioned above the lifting plate 6 and is laterally fixed to the clamping arm of the steel clamp 3. It is used to clamp the panel of the large-size web T-beam 8, so that the panel of the large-size web T-beam 8 is fixed on the lifting plate 6, thus preventing the large-size web T-beam 8 from sliding during the gripping process.

[0022] The technical solutions described in the embodiments of this application above have at least the following technical effects or advantages: Since the inner side of the clamping arm 31 is equipped with a pulley block 5, the pulleys of the pulley block 5 roll in contact with the web of the large-size web T-beam 8, which increases the contact area between the pulleys and the web of the large-size web T-beam, thus avoiding the phenomenon of shaking during the gripping process of the large-size web T-beam 8.

[0023] Since the large-size web T-beam 8 rests on the lifting plate 6, and a clamping cylinder 7 is installed above the lifting plate 6, the top rod of the clamping cylinder 7 presses down and fixes the panel of the large-size web T-beam 8, which increases the stability of the large-size web T-beam and can prevent the large-size web T-beam 8 from sliding during the gripping process.

[0024] To ensure the stability of the structure in this embodiment, the steel clamp 3 includes a clamping arm 31, a slider 32, and a lead screw 33; The clamping arm 31 is a frame structure, with ribs 311 on both sides to enhance its strength. A slider 32 is provided at the top of the clamping arm 31 and is suspended on the slide rail 2. The slider 32 is threadedly connected to the lead screw 33, which has threads with opposite directions of rotation. The slider 32 and the lead screw 33 are matched with each other. When the lead screw 33 rotates, the slider 32 moves in opposite directions along the axial direction of the lead screw 33, causing the clamping arm 31 to close or open to clamp the large-size web T-beam 8. The lead screw 33 is cantilevered and fixed in the middle of the slide rail 2, and the outer end of the lead screw 33 is connected to the pneumatic motor 4.

[0025] To further ensure the stability of the structure in this embodiment, the pulley block 5 includes pulleys and a base; the base is a U-shaped structure, and the pulley block 5 is laterally fixed to the inside of the clamping arm 31 through the base; the pulleys are arranged on the base for contacting the web of the large-size web T-beam 8.

[0026] As a standard technical choice, four pulleys are used in this embodiment.

[0027] To optimize the structure of this embodiment, the lifting plate 6 includes a support plate and a diagonal brace; the support plate is a rectangular plate, vertically connected to the inner side of the clamping arm 31, and the support plate contacts the lower surface of the panel of the large-size web T-beam 8. The upper surface of the support plate is smooth and flat, used to support the panel of the large-size web T-beam 8; the diagonal brace is a triangular plate, one side of which is connected to the inner side of the clamping arm 31, and the other side is connected to the lower surface of the support plate, used to enhance the connection strength of the support plate.

[0028] Preferably, the lifting plate 6 is located above the pulley block 5, so that when the large-size web T-beam 8 rests on the support plate, the center of gravity of the large-size web T-beam 8 is higher than the lower end of the pulley block 5, thus avoiding swaying during the gripping process of the large-size web T-beam 8.

[0029] To further optimize the structure of this embodiment, a pressure plate is provided at the front end of the top rod of the pressing cylinder 7. The pressure plate contacts the upper surface of the panel of the large-size web T-beam 8, pressing the panel of the large-size web T-beam 8 firmly on the lifting plate 6, thus preventing slippage during the gripping process of the large-size web T-beam 8.

[0030] Preferably, the minimum gap between the pressure plate of the clamping cylinder 7 and the support plate of the lifting plate 6 is greater than the thickness of the panel of the large-size web T-beam 8, so that the panel of the large-size web T-beam 8 can be mounted on the lifting plate 6.

[0031] The working process of this embodiment: The construction of this device: A quick connector is welded to the upper end of the steel base plate 1 to connect with the gantry's attached device; a slide rail 2 is welded to the lower end of the steel base plate 1; a steel clamp 3 is welded from a slider 32 and a clamping arm 31 below it; the slider 32 and the slide rail 2 are welded onto the steel base plate 1; a pneumatic motor 4 with a lead screw 33 is mounted on the slide rail 2 via the slider 32; four pulleys are connected to the assembly base by bolts to form a pulley assembly 5; the assembly base is welded to the steel clamp 3; a steel lifting plate 6 is installed above the pulley assembly 5 and welded to the steel clamp 3; a clamping cylinder 7 is welded onto the lifting plate 6 at a certain distance above it; Use of this device: Before assembling the large-size web T-beam 8, multiple gripping devices are connected to the gantry's attached device. A pneumatic motor 4 rotates the lead screw 33, opening the gripping arm 31 of the steel clamp 3 on each gripping device outwards, and the push rod of the clamping cylinder 7 is in a retracted state. After moving the gripping device directly above the large-size web T-beam 8, it is lowered until the upper surface of the lifting plate 6 is below the lower surface of the large-size web T-beam 8 panel. The pneumatic motor 4 then moves the gripping arm 31 towards the center, using a sliding... The pulley block 5 contacts the web of the large-size web T-beam 8, and the gripping device is lifted so that the pulley block 5 slides upward along the web of the large-size web T-beam 8 until the lifting plate 6 contacts the panel of the large-size web T-beam 8. At this time, the center of gravity of the large-size web T-beam 8 is higher than the lower end of the pulley block 5. The gripping device is then lifted to raise the large-size web T-beam 8 a certain height off the ground. The cylinder push rod on the clamping cylinder 7 is used to press down on the upper surface of the panel of the large-size web T-beam 8, and it is moved to the target position for assembly.

[0032] It is worth noting that all content not described in detail in the specification belongs to existing technology known to those skilled in the art, and the model parameters of slide 2, pneumatic motor 4, pulley block 5, and clamping cylinder 7 are not specifically limited and can be determined using conventional equipment. Electrical control components not mentioned in this technical solution are not shown in the figures because they belong to existing technology, and will not be described further here. The description of this utility model is given for illustrative and descriptive purposes only, and is not intended to be exhaustive or to limit the utility model to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.

[0033] Finally, it should be noted that: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A gripping device suitable for assembling large-size web T-beams, characterized in that: It includes a steel base plate (1), a slide rail (2), a steel clamp (3), a pneumatic motor (4), a pulley block (5), a lifting plate (6), and a clamping cylinder (7); The upper surface of the steel base plate (1) is provided with a quick connector that can be connected to the gantry-attached device; The slide rails (2) are symmetrically suspended on the lower surface of the steel base plate (1); The steel clamp (3) is hoisted on the slide (2). The steel clamp (3) has opposing clamping arms (31). The two clamping arms (31) close together to clamp the large-size web T-beam (8). The pneumatic motor (4) is connected to the clamping arm (31) and is used to drive the clamping arm (31) to clamp the large-size web T-beam (8); The pulley block (5) is located on the inner side of the lower part of the clamping arm (31) of the steel clamp (3), and the pulley block (5) has a series of pulleys arranged in a row. The lifting plate (6) is set above the pulley block (5) to support the panel of the large web T-beam (8); The clamping cylinder (7) is located above the lifting plate (6) and is laterally fixed on the clamping arm of the steel clamp (3) for clamping the large-size web T-beam (8) panel.

2. The gripping device for assembling large-size web T-beams according to claim 1, characterized in that: The steel clamp (3) includes a clamping arm (31), a slider (32), and a lead screw (33). The clamping arm (31) is provided with ribs (311) on both sides to enhance the strength of the clamping arm (31); a slider (32) is provided at the top of the clamping arm (31), and the slider (32) is suspended on the slide rail (2); the slider (32) is threadedly connected to the lead screw (33), the lead screw (33) has threads with opposite directions of rotation, and the slider (32) and the lead screw (33) are matched with each other; when the lead screw (33) rotates, the slider (32) moves in opposite directions along the axial direction of the lead screw (33), driving the clamping arm (31) to close or open; the lead screw (33) is cantilevered and fixed in the middle of the slide rail (2), and the outer end of the lead screw (33) is connected to the pneumatic motor (4).

3. The gripping device for assembling large-size web T-beams according to claim 1, characterized in that: The pulley block (5) includes pulleys and a base; the base is a U-shaped structure, and the pulley block (5) is laterally fixed to the inside of the clamping arm (31) through the base; the pulleys are arranged on the base for contacting the web of the large-size web T-beam (8).

4. The gripping device for assembling large-size web T-beams according to claim 3, characterized in that: There are four pulleys.

5. The gripping device for assembling large-size web T-beams according to claim 1, characterized in that: The lifting plate (6) includes a support plate and diagonal bracing; The support plate is a rectangular plate, which is vertically connected to the inner side of the clamping arm (31). The support plate is in contact with the lower surface of the large-size web T-beam (8) panel. The upper surface of the support plate is smooth and flat, and is used to support the large-size web T-beam (8) panel. The diagonal brace is a triangular plate, which is connected to the inner side of the clamping arm (31) on one side and connected to the lower surface of the support plate on the other side.

6. A gripping device suitable for assembling large-size web T-beams according to claim 5, characterized in that: The lifting plate (6) is located above the pulley block (5), so that when the large-size web T-beam (8) rests on the support plate, the center of gravity of the large-size web T-beam (8) is higher than the lower end of the pulley block (5).

7. A gripping device suitable for assembling large-size web T-beams according to claim 6, characterized in that: The front end of the top rod of the pressing cylinder (7) is provided with a pressure plate. The pressure plate contacts the upper surface of the panel of the large-size web T-beam (8) and presses the panel of the large-size web T-beam (8) onto the lifting plate (6).

8. A gripping device suitable for assembling large-size web T-beams according to claim 7, characterized in that: The minimum gap between the pressure plate of the clamping cylinder (7) and the support plate of the lifting plate (6) is greater than the thickness of the panel of the large-size web T-beam (8), so that the panel of the large-size web T-beam (8) can be mounted on the lifting plate (6).

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