Adjustable support for crane

Abstract

The utility model discloses an adjustable bracket for a crane, relates to the technical field of crane brackets, aims to solve the technical problem that the conventional gantry bracket is inconvenient to adjust horizontally according to the inclination condition of a placement plane, and comprises a gantry bracket. The electric hydraulic push rods and the longitudinal adjusting structures are arranged at the bottoms of the triangular vertical frames, when the gantry support is used, the longitudinal adjusting structures can be adjusted up and down through the electric hydraulic push rods, and then the longitudinal adjusting structures at the bottoms of the two triangular vertical frames are controlled to be at different heights, namely proper height difference is achieved; the transverse horizontal angle of the gantry support can be adjusted by rotating a first supporting plate in the longitudinal adjusting structure, then the second supporting plate in the longitudinal adjusting structure is rotated to enable the second supporting plate to be located at different angles in the longitudinal direction, then limiting screws at the front end and the rear end of a first supporting plate are screwed to enable the first supporting plate to abut against the second supporting plate, and then the second supporting plate can be fixed. Therefore, the longitudinal horizontal angle of the gantry bracket can be adjusted.

Description

Technical Field

[0001] This utility model relates to the field of crane support technology, and more specifically, to an adjustable support for cranes. Background Technology

[0002] A crane is a multi-action lifting machine that vertically lifts and horizontally moves heavy objects within a certain range. It is also called an overhead crane, gantry crane, or gantry crane. Gantry cranes are a common type of crane. Gantry cranes are mainly composed of a support frame and a lifting structure. The support frame of a gantry crane is called a gantry support frame, which is a concave support frame composed of a set of horizontal beams and two sets of vertical frames.

[0003] When using existing gantry cranes, they usually need to be kept horizontal to ensure stability. This is because the bottom of the gantry crane is usually horizontal, making it difficult to adjust the level according to the inclination of the placement plane. If the placement plane is inclined, the gantry crane will be tilted after placement. When used in conjunction with a hoisting structure, this will greatly reduce the overall stability of the structure, making it easy to tip over during the hoisting process, posing a safety hazard. In view of this, we propose an adjustable support for cranes. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide an adjustable support for cranes to solve the technical problem that the current gantry support is not convenient to be horizontally adjusted according to the inclination of the placement plane.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an adjustable support for a crane, including a gantry support, the gantry support including a crossbeam, symmetrical triangular vertical frames arranged at both ends of the bottom of the crossbeam, an electric hydraulic push rod arranged at both ends of the bottom of the triangular vertical frame, a longitudinal adjustment structure arranged at the bottom of the triangular vertical frame, the longitudinal adjustment structure including a first support plate, the electric hydraulic push rod passing through the piston end of the triangular vertical frame and connected to the first support plate, a second support plate rotatably arranged at the bottom center of the first support plate, and limit screws screwed onto both ends of the second support plate;

[0006] The bottom end of the limiting screw is provided with a stable structure.

[0007] This invention incorporates an electric hydraulic push rod and a longitudinal adjustment structure at the bottom of the triangular vertical frame. During use, the electric hydraulic push rod allows for vertical adjustment of the longitudinal adjustment structure. By controlling the two sets of longitudinal adjustment structures at the bottom of the triangular vertical frame to achieve different height differences, the lateral horizontal angle of the gantry bracket can be adjusted. Rotating the second support plate in the longitudinal adjustment structure allows it to be positioned at different angles in the longitudinal direction. Tightening the limiting screws at the front and rear ends of the first support plate secures it to the second support plate, thus fixing the second support plate in place. This allows for longitudinal horizontal angle adjustment of the gantry bracket. Therefore, the gantry bracket can be appropriately adjusted according to the inclination of the placement plane to ensure it is in the correct position after placement. In a horizontal position, overall stability is ensured. Furthermore, through a designed robust structure, after the longitudinal angle of the second support plate is adjusted, the upper limit screw of the first support plate, in conjunction with the horizontal limiting component, allows the bottom surface of the top fixing plate to fully contact the second support plate. This increases the contact area between the limiting screw and the second support plate, ensuring the limiting screw's effective fixing of the second support plate. Simultaneously, with the cooperation of the vertical limiting component, the first and second support plates are limited, ensuring their stability and preventing rotation of the limiting screw during subsequent operation that could cause changes in the longitudinal angle of the second support plate. It also prevents changes in the height difference between the longitudinal adjustment structures at the bottom of the two sets of triangular vertical frames. Therefore, the stability of the gantry bracket angle adjustment is further guaranteed.

[0008] Preferably, the stabilizing structure includes a top fixing plate and a limiting structure, wherein the top of the top fixing plate is rotatably connected to the bottom of the limiting screw.

[0009] Preferably, the limiting structure includes a horizontal limiting component and a vertical limiting component. The horizontal limiting component includes a connecting rod, one end of which is rotatably connected to the top plate. Symmetrical concave frames are arranged on the front and rear sides of the connecting rod facing away from the top plate. The concave frames are arranged on the second support plate. A round rod is arranged on the end of the connecting rod facing away from the top plate. The round rod is located within the two sets of concave frames.

[0010] Preferably, the vertical limiting component includes a first connecting plate, which is rotatably arranged on two sets of concave frames. A second connecting plate is rotatably arranged on one end of the first connecting plate facing away from the concave frames. The second connecting plate has a rectangular through hole, and a fixing bolt is inserted into the rectangular through hole. The fixing bolt is screwed onto the first support plate.

[0011] Preferably, a mounting plate frame is slidably arranged on the second connecting plate, the fixing bolt passes through the mounting plate frame, a rack is arranged at the bottom of the mounting plate frame, and a toothed groove is opened at the bottom of the second connecting plate.

[0012] Preferably, the second connecting plate has limiting grooves on its front and rear sides, the mounting plate frame is concave, and a buckle plate is arranged on the opening edge of the mounting plate frame, and the buckle plate extends into the limiting groove. The height of the limiting groove is greater than the height of the buckle plate, and a round hole is provided in the center of the mounting plate frame.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model incorporates an electric hydraulic push rod and a longitudinal adjustment structure at the bottom of the triangular vertical frame. During use, the electric hydraulic push rod allows for vertical adjustment of the longitudinal adjustment structure. By controlling the two sets of longitudinal adjustment structures at the bottom of the triangular vertical frame to different heights (i.e., achieving a suitable height difference), the lateral horizontal angle of the gantry bracket can be adjusted. Rotating the second support plate in the longitudinal adjustment structure allows it to be positioned at different angles in the longitudinal direction. Tightening the limiting screws at the front and rear ends of the first support plate secures it to the second support plate, thus fixing the second support plate in place. This allows for longitudinal horizontal angle adjustment of the gantry bracket. Therefore, the gantry bracket can be appropriately adjusted according to the inclination of the placement plane to ensure it is horizontal after placement, guaranteeing overall stability. This solves the technical problem of current gantry brackets being inconvenient for horizontal adjustment based on the inclination of the placement plane. Therefore, this utility model possesses the advantage of horizontal adjustment based on the inclination of the placement plane.

[0015] 2. This utility model also features a robust structure. After the longitudinal angle of the second support plate is adjusted, the upper limit screw of the first support plate, in conjunction with the horizontal limiting component, allows the bottom surface of the top plate to fully contact the second support plate. This increases the contact area between the limiting screw and the second support plate, ensuring the limiting effect of the limiting screw on the second support plate. Simultaneously, with the cooperation of the vertical limiting component, the first and second support plates are limited, ensuring their stability and preventing the limiting screw from rotating during subsequent operation, which could cause changes in the longitudinal angle of the second support plate. It also prevents changes in the height difference between the longitudinal adjustment structures at the bottom of the two sets of triangular vertical frames. Therefore, it further ensures the stability of the gantry bracket angle adjustment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the triangular vertical frame structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the installation of the stabilizing structure and the longitudinal adjustment structure of this utility model;

[0019] Figure 4This is a schematic diagram of the second connecting plate structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the mounting plate frame structure of this utility model.

[0021] Explanation of the labels in the diagram:

[0022] 1. Gantry bracket; 2. Horizontal beam; 3. Triangular vertical frame; 4. Electro-hydraulic push rod; 5. Longitudinal adjustment structure; 6. First support plate; 7. Second support plate; 8. Limiting screw; 9. Stabilizing structure; 10. Top fixing plate; 11. Limiting structure; 12. Horizontal limiting component; 1201. Connecting rod; 1202. Round rod; 1203. Concave frame; 13. Vertical limiting component; 1301. First connecting plate; 1302. Second connecting plate; 1303. Rectangular through hole; 1304. Fixing bolt; 1305. Mounting plate frame; 1306. Rack; 1307. Gear groove; 1308. Limiting groove; 1309. Buckle plate; 13010. Round hole. Detailed Implementation

[0023] like Figures 1 to 5 As shown, this utility model relates to an adjustable support for a crane, including a gantry support 1. The gantry support 1 includes a crossbeam 2, with symmetrical triangular vertical frames 3 arranged at both ends of the bottom of the crossbeam 2. Electro-hydraulic push rods 4 are arranged at both ends of the bottom of the triangular vertical frames 3. A longitudinal adjustment structure 5 is arranged at the bottom of the triangular vertical frames 3. The longitudinal adjustment structure 5 includes a first support plate 6. The electro-hydraulic push rods 4 pass through the piston end of the triangular vertical frames 3 and connect to the first support plate 6. A second support plate 7 is rotatably arranged at the bottom center of the first support plate 6, and limit screws 8 are screwed onto both ends of the second support plate 7. When the gantry support 1 is in use, the longitudinal adjustment structure 5 can be adjusted up and down using the electro-hydraulic push rods 4. Then, by controlling the bottom longitudinal adjustment structure 5 of the two sets of triangular vertical brackets 3 to be at different heights, i.e., having a suitable height difference, the horizontal angle of the gantry bracket 1 can be adjusted. Then, by rotating the second support plate 7 in the longitudinal adjustment structure 5, the second support plate 7 can be placed at different angles in the longitudinal direction. Then, by turning the limiting screws 8 at the front and rear ends of the first support plate 6, it can be fixed to the second support plate 7, thereby fixing the second support plate 7. Thus, the longitudinal horizontal angle of the gantry bracket 1 can be adjusted appropriately according to the inclination of the placement plane, so that it is in a horizontal state after placement, ensuring the overall stability.

[0024] In this embodiment of the invention, a stabilizing structure 9 is arranged at the bottom end of the limiting screw 8; the stabilizing structure 9 includes a top fixing plate 10 and a limiting structure 11, the top of the top fixing plate 10 being rotatably connected to the bottom end of the limiting screw 8; the limiting structure 11 includes a horizontal limiting component 12 and a vertical limiting component 13; after the longitudinal angle of the second support plate 7 is adjusted, the limiting screw 8 on the first support plate 6, under the limiting cooperation of the horizontal limiting component 12, can make the bottom surface of the top fixing plate 10 fully contact the second support plate 7, thereby increasing the contact between the limiting screw 8 and the limiting screw 8. The contact area of ​​the second support plate 7 ensures the limiting screw 8's limiting effect on the second support plate 7. At the same time, with the cooperation of the vertical limiting component 13, the first support plate 6 and the second support plate 7 can be limited, ensuring the stability between them and preventing the limiting screw 8 from rotating during subsequent operation, which would cause changes in the longitudinal angle of the second support plate 7. It also prevents changes in the height difference of the longitudinal adjustment structure 5 at the bottom of the two sets of triangular vertical brackets 3. Therefore, it further ensures the stability of the angle adjustment of the gantry bracket 1.

[0025] Specifically, the horizontal limiting component 12 includes a connecting rod 1201. One end of the connecting rod 1201 is rotatably connected to the top fixing plate 10. Symmetrical concave frames 1203 are arranged on the front and rear sides of the connecting rod 1201 facing away from the top fixing plate 10. The concave frames 1203 are arranged on the second support plate 7. A round rod 1202 is arranged on the end of the connecting rod 1201 facing away from the top fixing plate 10. The round rod 1202 is located within the two sets of concave frames 1203. With the cooperation of the round rod 1202 and the concave frames 1203, the connecting rod 1201 can move back and forth within the concave frames 1203. It can rotate freely in the vertical direction, so it will not affect the rotation of the second support plate 7. However, under the limit of the concave frame 1203, that is, the connecting rod 1201 cannot rotate horizontally, so the horizontal limit of the top plate 10 can be achieved, avoiding the top plate 10 from rotating together when the limit screw 8 rotates. And the top plate 10 is rotatably connected to the limit screw 8, so the top plate 10 can rotate vertically. Thus, under the pushing of the limit screw 8, the top plate 10 will undergo adaptive vertical rotation, and the bottom of the top plate 10 will always be horizontally pressed against the second support plate 7.

[0026] Furthermore, the vertical limiting component 13 includes a first connecting plate 1301, which is rotatably arranged on two sets of concave frames 1203. A second connecting plate 1302 is rotatably arranged on one end of the first connecting plate 1301 facing away from the concave frame 1203. The second connecting plate 1302 has a rectangular through hole 1303, and a fixing bolt 1304 is inserted into the rectangular through hole 1303. The fixing bolt 1304 is screwed onto the first support plate 6. When the second support plate 7 is adjusted at an angle, the fixing bolt 1304 is loosened. At this time, the first connecting plate 1301... With the cooperation of the two connecting plates, the second connecting plate 1302 will move accordingly. At this time, the fixing bolt 1304 remains fixed. After the angle of the second support plate 7 is adjusted, the fixing bolt 1304 is tightened to firmly press the second connecting plate 1302 against the first support plate 6. This achieves the limitation of the first support plate 6 and the second support plate 7, ensuring the stability between them and preventing the limiting screw 8 from rotating during subsequent operation, which would cause the longitudinal angle of the second support plate 7 to change. It also prevents the height difference between the longitudinal adjustment structures 5 at the bottom of the two sets of triangular vertical brackets 3 from changing.

[0027] Furthermore, a mounting bracket 1305 is slidably arranged on the second connecting plate 1302, and a fixing bolt 1304 passes through the mounting bracket 1305. A rack 1306 is arranged at the bottom of the mounting bracket 1305, and a toothed groove 1307 is opened at the bottom of the second connecting plate 1302. Limiting grooves 1308 are opened on the front and rear sides of the second connecting plate 1302. The mounting bracket 1305 is concave, and a buckle plate 1309 is arranged on the opening edge of the mounting bracket 1305. The buckle plate 1309 extends into the limiting groove 1308, and the height of the limiting groove 1308 is greater than the height of the buckle plate 1309. A round hole 13010 is opened in the center of the mounting bracket 1305. The round hole 13010 facilitates the fixing bolt 1304 to pass through the mounting bracket 1305. With the cooperation of plate 1309, mounting bracket 1305 can slide along the second connecting plate 1302, and mounting bracket 1305 can move up and down to a certain extent. Therefore, when the fixing bolt 1304 is loosened, mounting bracket 1305 falls, and rack 1306 disengages from tooth groove 1307. When the fixing bolt 1304 is tightened, the fixing bolt 1304 presses mounting bracket 1305 onto the second connecting plate 1302. At this time, rack 1306 is engaged in tooth groove 1307, ensuring the stability of second connecting plate 1302 against first support plate 6 and preventing second connecting plate 1302 from sliding on first support plate 6. This further ensures the stability of vertical limiting component 13 in limiting the first support plate 6 and second support plate 7.

[0028] Working principle: This embodiment provides an adjustable support for a crane. First, when the gantry support 1 is in use, the longitudinal adjustment structure 5 can be adjusted up and down by the electric hydraulic push rod 4. Then, by controlling the bottom longitudinal adjustment structure 5 of the two sets of triangular vertical frames 3 to be at different heights, that is, having a suitable height difference, the horizontal angle adjustment of the gantry support 1 can be realized. Then, by rotating the second support plate 7 in the longitudinal adjustment structure 5, the second support plate 7 can be made to be at different angles in the longitudinal direction. Then, by turning the limiting screws 8 at the front and rear ends of the first support plate 6, it is fixed to the second support plate 7, thereby realizing the longitudinal horizontal angle adjustment of the gantry support 1. Therefore, the gantry support 1 can be appropriately adjusted according to the inclination of the placement plane to make it horizontal after placement, ensuring the overall stability.

[0029] Secondly, after the longitudinal angle of the second support plate 7 is adjusted, the upper limit screw 8 of the first support plate 6, under the limiting cooperation of the horizontal limiting component 12, can make the bottom surface of the top fixing plate 10 fully contact the second support plate 7, thereby increasing the contact area between the limiting screw 8 and the second support plate 7, ensuring the limiting effect of the limiting screw 8 on the second support plate 7. At the same time, with the cooperation of the vertical limiting component 13, the first support plate 6 and the second support plate 7 can be limited, ensuring the stability between them and preventing the limiting screw 8 from rotating during subsequent operation, which would cause a change in the longitudinal angle of the second support plate 7. It also prevents a change in the height difference between the longitudinal adjustment structures 5 at the bottom of the two sets of triangular vertical frames 3. Therefore, it further ensures the stability of the angle adjustment of the gantry bracket 1.

[0030] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. An adjustable support for a crane, characterized in that, The system includes a gantry support (1), which includes a crossbeam (2). Symmetrical triangular vertical frames (3) are arranged at both ends of the bottom of the crossbeam (2). Electric hydraulic push rods (4) are arranged at both ends of the bottom of the triangular vertical frames (3). A longitudinal adjustment structure (5) is arranged at the bottom of the triangular vertical frames (3). The longitudinal adjustment structure (5) includes a first support plate (6). The electric hydraulic push rod (4) passes through the piston end of the triangular vertical frame (3) and is connected to the first support plate (6). A second support plate (7) is rotatably arranged at the bottom center of the first support plate (6). Limit screws (8) are screwed onto both ends of the second support plate (7). The bottom end of the limiting screw (8) is provided with a stabilizing structure (9).

2. The adjustable support for a crane according to claim 1, characterized in that, The stabilizing structure (9) includes a top fixing plate (10) and a limiting structure (11), wherein the top of the top fixing plate (10) is rotatably connected to the bottom of the limiting screw (8).

3. The adjustable support for a crane according to claim 2, characterized in that, The limiting structure (11) includes a horizontal limiting component (12) and a vertical limiting component (13). The horizontal limiting component (12) includes a connecting rod (1201). One end of the connecting rod (1201) is rotatably connected to the top plate (10). Symmetrical concave frames (1203) are arranged on the front and rear sides of the connecting rod (1201) facing away from the top plate (10). The concave frames (1203) are arranged on the second support plate (7). A round rod (1202) is arranged on the end of the connecting rod (1201) facing away from the top plate (10). The round rod (1202) is located in the two sets of concave frames (1203).

4. An adjustable support for a crane according to claim 3, characterized in that, The vertical limiting component (13) includes a first connecting plate (1301), which is rotatably arranged on two sets of concave frames (1203). A second connecting plate (1302) is rotatably arranged on one end of the first connecting plate (1301) facing away from the concave frame (1203). The second connecting plate (1302) has a rectangular through hole (1303), and a fixing bolt (1304) is inserted into the rectangular through hole (1303). The fixing bolt (1304) is screwed onto the first support plate (6).

5. An adjustable support for a crane according to claim 4, characterized in that, A mounting plate frame (1305) is slidably arranged on the second connecting plate (1302), and the fixing bolt (1304) passes through the mounting plate frame (1305). A rack (1306) is arranged at the bottom of the mounting plate frame (1305), and a toothed groove (1307) is opened at the bottom of the second connecting plate (1302).

6. An adjustable support for a crane according to claim 5, characterized in that, The second connecting plate (1302) has a limiting groove (1308) on its front and rear sides. The mounting plate frame (1305) is concave, and a buckle plate (1309) is arranged on the opening edge of the mounting plate frame (1305). The buckle plate (1309) extends into the limiting groove (1308). The height of the limiting groove (1308) is greater than the height of the buckle plate (1309). A round hole (13010) is opened in the center of the mounting plate frame (1305).

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