Special portal frame for crane
By designing the slide block and slide rail structure and the hydraulic adjustment system in the gantry crane, the problem of shaking when the gantry crane lifts goods and the inconvenience of adjusting the gantry is solved, achieving higher stability and a wider scope of application.
Patent Information
- Application Number
- CN202411550386.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-01
- Publication Date
- 2025-01-21
Smart Images
Figure CN119330213A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of crane parts and components, and in particular to a special gantry for cranes. Background Art
[0002] Gantry crane refers to a multifunctional crane that can lift and transport heavy objects vertically and horizontally within a certain range. It belongs to material handling machinery. The working characteristic of gantry crane is intermittent movement, that is, the corresponding mechanisms of material collection, transportation, unloading and other actions work alternately in one working cycle. The crane is a lifting and transportation equipment that reduces heavy physical labor, improves work efficiency and achieves safe production. In the circulation of materials, cranes are widely used as key process equipment or main auxiliary machinery.
[0003] In the circulation of materials, in order to improve the work efficiency of handling goods, a gantry crane is usually required. The goods are lifted and the gantry is moved by the hook of the gantry crane to achieve the purpose of handling the goods. In the prior art, although the stability of the crane support can be improved and the service life can be extended, it is difficult to avoid the problem of shaking when the gantry crane lifts the goods. The current gantry crane will also have a certain impact on the overall stability of the gantry when handling goods. In addition, the existing gantry is not easy to adjust during use, and after long-term use, the instability of the hook sliding is prone to occur, which affects the service life. Summary of the invention
[0004] In view of the defects in the prior art, an object of the present invention is to provide a gantry specifically for a crane.
[0005] A gantry for cranes provided by the present invention comprises: a rectangular frame, columns and a lifting device, wherein the bottoms of the four sides of the rectangular frame are respectively fixedly connected with corresponding columns, the lifting device is slidably connected to the rectangular frame, the rectangular frame comprises a long side fixing rod and a short side fixing rod, the two long side fixing rods and the two short side fixing rods are connected end to end, and the two long side fixing rods are mirror-distributed along the central axis of the short side fixing rods; A protrusion is provided on the side of the long side fixing rod, a slide rail is provided on the protrusion, limit seats are provided at both ends of the slide rail, a matching slider is provided on the slide rail, a driver is provided on the slider, and the sides of two adjacent sliders are connected to the two ends of the reinforcing rib, and an engine is provided on the outside of the short side fixing rod, the engine is electrically connected to the reducer and the driver respectively, the reducer is fixed on the outside of the short side fixing rod, and the reducer is located on the side of the engine; The raised side and the sliding block side are provided with matching electromagnetic generators. The sliding block slides on the slide rail through the driver and the electromagnetic generator, and slides at a limited speed in two limit seats in the same group through a reducer.
[0006] Preferably, the column comprises a first column, a second column and a third column, the second column is arranged on the first column, the third column is sleeved in the second column, a mounting assembly is arranged at the bottom of the first column, and the top of the third column is connected to the bottom end position of the long side fixing rod; A hydraulic device is installed in the second column, and the third column slides in the second column through the hydraulic device. The column is lifted or lowered in height through the cooperation of the hydraulic device and the third column.
[0007] Preferably, the mounting assembly comprises an arc-shaped reinforcement block, which is wrapped and welded on the bottom outer wall of the first column, and evenly distributed mounting holes are provided on the lower surface of the arc-shaped reinforcement block; A buffer component is filled between the arc-shaped reinforcement block and the outer wall of the bottom of the first column. The buffer component includes a buffer strip, a braided reinforcement block and a buffer block. One side of the buffer strip is bonded to the outer wall of the first column, and the other side of the buffer strip is bonded to the braided reinforcement block. The braided reinforcement block is filled with buffer cotton. The braided reinforcement block is provided with a buffer block, and the buffer block is attached to the inner wall of the arc-shaped reinforcement block. Preferably, the size of the first cylinder is larger than that of the second cylinder, and the size of the second cylinder is larger than that of the third cylinder.
[0008] Preferably, linear slide rails are provided on both sides of the reinforcing rib, and a lifting device adapted thereto is slidably connected to the linear slide rails.
[0009] Preferably, the lifting device includes a concave slider, a mounting seat and a lifting machine, the concave slider is clamped on the reinforcing rib, and the concave slider is slidably connected to the linear slide rail, the mounting seat is installed at the bottom of the concave slider, and the lifting machine is installed at the bottom of the mounting seat.
[0010] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention adopts an adaptive slider and a slide rail to realize the movement of the slider, and cooperates with an electromagnetic generator to strengthen the fixed connection between the slider and the slide rail, so that the two are tightly fixed, effectively preventing the slider from derailing, and improving production safety performance; and the reinforcing ribs connected to the side of the slider can effectively realize the simultaneous movement of the slider, ensuring the stability of the structure, and the lifting device is clamped on the reinforcing ribs for sliding, which not only effectively enhances the stability of the concave slider, but also improves the bearing capacity of the lifting device, so that the overall gantry structure increases the bearing capacity and has a wider range of applications; (2) The present invention uses a reducer in conjunction with a driver to drive the slider to slide at a uniform speed on the slide rail, which can effectively brake, improve movement accuracy, enhance sliding stability, and effectively reduce the impact force on the gantry; in conjunction with the use of a limit seat, it can effectively ensure the safe operation of the slider on the slide rail and improve production safety; (3) The present invention realizes height adjustment of the column through a hydraulic device, so that the column can adapt to more venues and expand the scope of application. Combined with the use of the buffer component, the close connection between the column and the arc-shaped reinforcement block is effectively strengthened, thereby improving the bearing capacity of the column. The multi-layer structure of the buffer component not only has a strong buffering effect and a high structural density, but also can effectively achieve the stability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Other features, objects and advantages of the present invention will become more apparent from the detailed description of non-limiting embodiments made with reference to the following drawings: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic structural diagram of the long side fixing rod in the present invention; Figure 3 It is a schematic diagram of the structure of the reinforcing rib in the present invention; Figure 4 It is a structural schematic diagram of the middle column of the present invention; Figure 5 It is a structural schematic diagram of the lifting device in the present invention; Figure 6 It is a schematic diagram of the structure of the buffer component in the present invention.
[0012] The figure shows: a rectangular frame 1, a long side fixing rod 11, a short side fixing rod 12, a protrusion 13, a slide rail 14, a limit seat 15, a driver 16, a reinforcing rib 17, a linear slide rail 171, an engine 18, a reducer 19, a slider 20, a column 2, a first column 21, a second column 22, a third column 23, a mounting assembly 24, an arc-shaped reinforcement block 241, a buffer assembly 242, a buffer strip 243, a braided reinforcement block 244, a buffer block 245, a lifting device 3, a concave slider 31, a mounting seat 32, and a lifting machine 33. DETAILED DESCRIPTION
[0013] The present invention is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, several changes and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.
[0014] Example 1
[0015] According to the present invention, a special gantry for a crane is provided, such as Figure 1-3As shown, it includes: a rectangular frame 1, columns 2 and a lifting device 3. The bottom of the rectangular frame 1 is fixedly connected with corresponding columns 2. The lifting device 3 is slidably connected to the rectangular frame 1. The rectangular frame 1 includes a long side fixing rod 11 and a short side fixing rod 12. The two long side fixing rods 11 and the two short side fixing rods 12 are connected end to end. The two long side fixing rods 11 are mirror-distributed along the central axis of the short side fixing rod 12. The overall rectangular frame structure is provided to make the structure more stable. The lifting device 3 slides on the rectangular frame 1 to adjust forward, backward, left and right.
[0016] A protrusion 13 is provided on the side of the long side fixing rod 11, and a slide rail 14 is provided on the protrusion 13. Limit seats 15 are provided at both ends of the slide rail 14. A matching slider 20 is provided on the slide rail 14, and a driver 16 is provided on the slider 20. The sides of two adjacent sliders 20 are connected to the two ends of the reinforcing rib 17. An engine 18 is provided on the outside of the short side fixing rod 12. The engine 18 is electrically connected to the reducer 19 and the driver 16 respectively. The reducer 19 is fixed to the outside of the short side fixing rod 12, and the reducer 19 is located on the side of the engine 18; a matching electromagnetic generator is provided on the side of the protrusion 13 and the side of the slider 20. The slider 20 slides on the slide rail 14 through the driver 16 and the electromagnetic generator, and slides at a limited speed in the two limit seats 15 of the same group through the reducer 19, so that it can slide at a uniform speed, and can effectively brake during the movement, thereby improving the sliding stability. Linear slide rails 171 are provided on both sides of the reinforcing rib 17, and a lifting device 3 adapted thereto is slidably connected to the linear slide rail 171. As shown in FIG. Figure 5 As shown, the lifting device 3 includes a concave slider 31, a mounting seat 32 and a hoist 33. The concave slider 31 is clamped on the reinforcing rib 17, and the concave slider 31 is slidably connected to the linear slide rail 171. The mounting seat 32 is installed at the bottom of the concave slider 31, and the hoist 33 is installed at the bottom of the mounting seat 32.
[0017] Working principle: After placing the four columns 2 at the target position and connecting the whole gantry to the special equipment for the crane, the whole structure of the gantry can be used. Turn on the engine 18, and the driver 16 drives the slider 20 to slide left and right on the slide rail 14 on the long side fixed rod 11; cooperate with the electromagnetic generator to generate magnetic attraction to achieve a stable connection between the slider 20 and the slide rail 14 to prevent the slider 20 from derailing; under the action of the reducer, the slider 20 moves at a uniform speed, thereby driving the reinforcement 17 to move left and right, and the hoist 33 on the reinforcement 17 slides forward and backward through the cooperation of the concave slider 31 and the linear slide rail 171, thereby realizing the front and back left and right sliding of the hoist 33.
[0018] Example 2
[0019] This embodiment 2 is completed on the basis of embodiment 1, mainly to further explain the column 2, such as Figure 4As shown, specifically: The column 2 includes a first column 21, a second column 22 and a third column 23. The size of the first column 21 is larger than that of the second column 22, and the size of the second column 22 is larger than that of the third column 23. The second column 22 is arranged on the first column 21, and the third column 23 is sleeved in the second column 22. The bottom of the first column 21 is provided with a mounting assembly 24, and the top of the third column 23 is connected to the bottom end position of the long side fixing rod 11; a hydraulic device is installed in the second column 22, and the third column 23 slides in the second column 22 through the hydraulic device. The column 2 is height-lifted through the cooperation of the hydraulic device and the third column 23. The overall column 2 can be adjusted in height, with a wide range of adaptability, and the hydraulic device can stably realize the simultaneous adjustment of the four columns 2, ensuring the stable operation of the overall gantry.
[0020] The installation assembly 24 includes an arc-shaped reinforcement block 241, which is wrapped and welded on the bottom outer wall of the first column 21, and the lower surface of the arc-shaped reinforcement block 241 is provided with evenly distributed installation holes. After the column 2 is placed at the target position, the fixing nails can be nailed into the ground through the installation holes to achieve the overall fixation of the column 2, which is convenient to install and has low cost. The buffer assembly 242 is filled between the arc-shaped reinforcement block 241 and the bottom outer wall of the first column 21 to buffer the column 2, improve the pressure resistance and stability of the column 2 and its overall gantry, and extend its service life. Figure 6 As shown, the buffer assembly 242 includes a buffer strip 243, a woven reinforcement block 244 and a buffer block 245. One side of the buffer strip 243 is bonded to the outer wall of the first column 21, and the other side of the buffer strip 243 is bonded to the woven reinforcement block 244. The woven reinforcement block 244 is filled with buffer cotton. The woven reinforcement block 244 is provided with a buffer block 245. The buffer block 245 is attached to the inner wall of the arc-shaped reinforcement block 241. The connection of the multi-layer structure not only achieves a close fit between the first column 21 and the arc-shaped reinforcement block 241, but also enhances the overall impact resistance of the column 2, so that the crane 33 will not only cause instability to the overall structure due to sliding during use, thereby enhancing the firmness of the overall gantry, extending the service life, and improving the structural stability.
[0021] Working principle: fill the buffer assembly 242 on the inner wall of the arc-shaped reinforcement block 241, and then weld the arc-shaped reinforcement block 241 to the outer wall at the bottom of the first column 21 to realize the connection of the overall structure. In addition, nail the fixing nails through the installation holes and nail them into the ground to realize the overall fixation of the column 2. According to actual needs, drive the hydraulic device to realize the height adjustment of the column 2 to make it adaptable to multiple venues.
[0022] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0023] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other arbitrarily.
Claims
1. A gantry for crane, characterized in that: include: A rectangular frame (1), columns (2) and a lifting device (3), wherein the bottom of each of the four sides of the rectangular frame (1) is fixedly connected to the corresponding columns (2), and the lifting device (3) is slidably connected to the rectangular frame (1), and the rectangular frame (1) comprises a long side fixing rod (11) and a short side fixing rod (12), wherein two long side fixing rods (11) and two short side fixing rods (12) are connected end to end, and the two long side fixing rods (11) are distributed in a mirror image along the central axis of the short side fixing rod (12); The long side fixing rod (11) is provided with a protrusion (13) on the side, the protrusion (13) is provided with a slide rail (14), both ends of the slide rail (14) are provided with limit seats (15), the slide rail (14) is provided with a matching slider (20), the slider (20) is provided with a driver (16), the sides of two adjacent sliders (20) are connected to the two ends of the reinforcing rib (17), the outside of the short side fixing rod (12) is provided with an engine (18), the engine (18) is electrically connected to a reducer (19) and the driver (16), the reducer (19) is fixed to the outside of the short side fixing rod (12), and the reducer (19) is located on the side of the engine (18); The side of the protrusion (13) and the side of the slider (20) are provided with electromagnetic generators that match them. The slider (20) slides on the slide rail (14) through the driver (16) and the electromagnetic generator, and slides at a limited speed in the two limit seats (15) of the same group through the speed reducer (19).
2. The crane-specific gantry according to claim 1, characterized in that: The upright column (2) comprises a first column (21), a second column (22) and a third column (23); the second column (22) is arranged on the first column (21); the third column (23) is sleeved inside the second column (22); a mounting assembly (24) is arranged at the bottom of the first column (21); and the top of the third column (23) is connected to the bottom end of the long side fixing rod (11); A hydraulic device is installed in the second column (22), and the third column (23) slides in the second column (22) through the hydraulic device, and the column (2) is raised or lowered in height through the cooperation of the hydraulic device and the third column (23).
3. The crane-specific gantry according to claim 1, characterized in that: The mounting assembly (24) comprises an arc-shaped reinforcement block (241), the arc-shaped reinforcement block (241) is wrapped and welded on the bottom outer wall of the first column (21), and evenly distributed mounting holes are provided on the lower surface of the arc-shaped reinforcement block (241); A buffer component (242) is filled between the arc-shaped reinforcement block (241) and the outer wall of the bottom of the first column (21); the buffer component (242) comprises a buffer strip (243), a braided reinforcement block (244) and a buffer block (245); one side of the buffer strip (243) is bonded to the outer wall of the first column (21); the other side of the buffer strip (243) is bonded to the braided reinforcement block (244); the braided reinforcement block (244) is filled with buffer cotton; the braided reinforcement block (244) is provided with the buffer block (245); and the buffer block (245) is attached to the inner wall of the arc-shaped reinforcement block (241).
4. The crane-specific gantry according to claim 2, characterized in that: The size of the first column (21) is larger than that of the second column (22), and the size of the second column (22) is larger than that of the third column (23).
5. The crane-specific gantry according to claim 1, characterized in that: Linear slide rails (171) are respectively provided on both sides of the reinforcing rib (17), and the linear slide rails (171) are slidably connected to the lifting devices (3) adapted thereto.
6. The crane-specific gantry according to claim 5, characterized in that: The lifting device (3) comprises a concave slider (31), a mounting seat (32) and a lifting machine (33); the concave slider (31) is clamped on the reinforcing rib (17), and the concave slider (31) is slidably connected to the linear slide rail (171); the mounting seat (32) is installed at the bottom of the concave slider (31), and the lifting machine (33) is installed at the bottom of the mounting seat (32).