Intelligent inspection device for tower crane

Abstract

The utility model relates to the technical field of crane detection, and discloses an intelligent inspection device for a tower crane, which comprises a base, the upper surface of the base is fixedly connected with two mutually symmetrical support plates, and a limiting roller is rotatably connected between the two support plates. By arranging the limiting roller and the limiting mechanism, one end of the rope can be wound on the surface of the limiting roller when the tension of the rope of the tower crane is detected, and then the lifting plate is driven by the lifting motor to move upwards, so that the two limiting columns are driven to be inserted into the positioning holes in the surface of the positioning ring; the other end of the rope is wound on the surface of the fixed roller, and the hydraulic push rod is used for driving the positioning pressing block to abut against and fix the rope, so that the stability of the two ends of the rope is improved, the strength of the rope can be detected, and the ropes with different lengths can be detected conveniently; the practicability of the inspection device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crane detection, and more specifically to an intelligent inspection device for tower cranes. Background Art

[0002] A tower crane is a commonly used lifting equipment on construction sites, also known as a tower hoist, which is used to lift construction raw materials such as steel bars, wooden beams, concrete, steel pipes, etc. The function of the tower crane tip is to bear the upper loads transmitted by the boom guy ropes and the counterweight guy ropes. The ropes of tower cranes need to be strictly tested for their strength to prevent problems such as rope breakage during use.

[0003] For example, a tower crane rope strength detection device with the publication number CN220473232U includes a workbench. The upper surface of the workbench is fixedly connected with a first vertical plate. The left side surface of the first vertical plate is fixedly connected with a support column. The left side surface of the support column is fixedly connected with a first limit ring. The upper surface of the workbench is fixedly connected with a second vertical plate. A bearing is fixedly embedded in the right side surface of the second vertical plate. The inner ring of the bearing is fixedly connected with a hydraulic rod, which can not only enable the device to perform tensile tests on ropes, but also facilitate the staff to view the tensile force values borne by the ropes.

[0004] In the actual use process of the rope strength detection device in the above patent document, there are the following problems: First, the structural spacing for fixing both ends of the rope is limited, which is not convenient for winding and limiting the rope, so it is not convenient to perform tensile tests on ropes of different lengths; second, the fixation of both ends of the rope is not firm enough, and it is easy for the rope to slip off during the process of stretching the rope, affecting the safety of the detection work. Summary of the Utility Model

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an intelligent inspection device for tower cranes to solve the problems existing in the above background art.

[0006] The utility model provides the following technical solutions: An intelligent inspection device for tower cranes includes a base. The upper surface of the base is fixedly connected with two symmetrically arranged support plates. A limit roller is rotatably connected between the two support plates. The limit roller is used for winding and limiting one end of the crane rope. A limit mechanism is arranged between the two support plates, and the limit mechanism is used for limiting the limit roller.

[0007] The upper surface of the base is fixedly connected with a fixing frame. A driving lead screw is rotatably connected inside the fixing frame. A T-shaped driving block is threadedly connected to the surface of the driving lead screw. The upper surface of the T-shaped driving block is fixedly connected with two extension plates. A fixing roller is fixedly connected between the opposite surfaces of the two extension plates. And the tops of the two extension plates are fixedly connected with a mounting plate. A hydraulic push rod is fixedly installed on the upper surface of the mounting plate. The telescopic rod of the hydraulic push rod extends below the mounting plate and is fixedly connected with a positioning pressing block. An arc-shaped limiting groove is formed on the lower surface of the positioning pressing block. The position of the positioning pressing block corresponds to that of the fixing roller. The size of the arc-shaped limiting groove matches that of the fixing roller;

[0008] The limiting mechanism includes a lifting motor fixedly installed on the upper surface of the base. A lifting lead screw is fixed to the output shaft of the lifting motor. A lifting plate is threadedly connected to the surface of the lifting lead screw. The upper surface of the lifting plate is fixedly connected with two limiting columns.

[0009] Further, a pressure sensor is fixedly installed on the surface of the fixing roller. The pressure sensor is used to detect the pressure generated by the rope on the surface of the fixing roller.

[0010] Further, a transmission box is fixedly installed on the right side of the fixing frame. A driving motor is fixedly installed on the surface of the transmission box. The output shaft of the driving motor extends into the interior of the transmission box and is fixedly connected with a driving gear.

[0011] Further, the right end of the driving lead screw extends into the interior of the transmission box, and a driven gear is fixedly arranged at the end of the driving lead screw. The driving gear meshes with the driven gear.

[0012] Further, a limiting slide bar is fixedly connected to the inner surface of the fixing frame. A limiting through hole matching the limiting slide bar is formed on the surface of the T-shaped driving block. The T-shaped driving block is slidably connected to the surface of the limiting slide bar through the limiting through hole.

[0013] Further, two rotating stop disks are fixedly connected to the surface of the limiting roller. Positioning rings are fixedly connected to the opposite surfaces of the two rotating stop disks. A plurality of positioning holes are formed on the surface of the positioning ring. The position of the positioning ring corresponds to that of the limiting column.

[0014] Further, the size of the positioning hole matches that of the limiting column, and the plurality of positioning holes are evenly distributed in an annular array on the surface of the positioning ring.

[0015] Further, a partition is fixedly connected between the two support plates. Two rectangular limiting holes are formed on the surface of the partition. The limiting column is slidably connected to the inner wall of the rectangular limiting hole. Two guide rods are fixed to the lower surface of the partition. The lifting plate is slidably connected to the surface of the guide rod.

[0016] Technical effects and advantages of the utility model:

[0017] 1. By setting the limiting roller and the limiting mechanism, when detecting the tensile force of the rope of the tower crane, one end of the rope can be wound around the surface of the limiting roller, and then the lifting motor is used to drive the lifting plate to move upward, so as to drive the two limiting columns to insert into the positioning holes on the surface of the positioning ring, thereby realizing the positioning of the limiting roller. Then the other end of the rope is wound around the surface of the fixed roller, and the hydraulic push rod is used to drive the positioning pressing block to press and fix the rope, thus improving the stability of both ends of the rope, which is beneficial to the strength detection of the rope and is convenient for detecting ropes of different lengths, improving the practicability of the inspection device.

[0018] 2. By providing an arc-shaped limiting groove on the lower surface of the positioning pressing block, the hydraulic push rod can be used to drive the arc-shaped limiting groove on the surface of the positioning pressing block to form a wrapping effect on the surface of the fixed roller, so as to limit the rope by using the arc-shaped limiting groove and improve the fixing effect of the rope, preventing the phenomenon of slipping at one end of the rope during the stretching process. Description of the drawings

[0019] Figure 1 is the front three-dimensional structure schematic diagram of the utility model;

[0020] Figure 2 is the rear three-dimensional structure schematic diagram of the utility model;

[0021] Figure 3 is the front structure schematic diagram of the fixed roller and the positioning pressing block of the utility model;

[0022] Figure 4 is the enlarged structure schematic diagram of the limiting mechanism of the utility model;

[0023] Figure 5 is the front sectional structure schematic diagram of the transmission box of the utility model.

[0024] Reference numerals are: 1, base; 2, support plate; 3, limiting roller; 4, limiting mechanism; 5, fixed frame; 6, driving lead screw; 7, T-shaped driving block; 8, extension plate; 9, fixed roller; 10, mounting plate; 11, hydraulic push rod; 12, positioning pressing block; 13, arc-shaped limiting groove; 14, pressure sensor; 15, transmission box; 16, driving motor; 17, driving gear; 18, driven gear; 19, limiting slide bar; 20, rotating blocking disc; 21, positioning ring; 22, positioning hole; 23, partition board; 24, guide rod;

[0025] 401, lifting motor; 402, lifting lead screw; 403, lifting plate; 404, limiting column. Detailed implementation manners

[0026] Next, in combination with the accompanying drawings in the present utility model, the technical solutions in the present utility model will be clearly and completely described. In addition, the forms of each structure described in the following embodiments are merely examples, and an intelligent inspection device for a tower crane related to the present utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present utility model.

[0027] Referring to Figures 1-5 , the present utility model provides an intelligent inspection device for a tower crane, including a base 1. Two symmetrically positioned support plates 2 are fixedly connected to the upper surface of the base 1. A limiting roller 3 is rotatably connected between the two support plates 2. The limiting roller 3 is used for winding and limiting one end of the crane rope. A limiting mechanism 4 is arranged between the two support plates 2, and the limiting mechanism 4 is used for limiting the limiting roller 3.

[0028] Two rotating stop disks 20 are fixedly connected to the surface of the limiting roller 3. Positioning rings 21 are fixedly connected to the opposite surfaces of the two rotating stop disks 20. A plurality of positioning holes 22 are formed on the surface of the positioning ring 21. The position of the positioning ring 21 corresponds to that of the limiting column 404, and the size of the positioning hole 22 matches that of the limiting column 404. Moreover, the plurality of positioning holes 22 are evenly distributed on the surface of the positioning ring 21 in an annular array.

[0029] Through the above technical solution, a partition 23 is fixedly connected between the two support plates 2. Two rectangular limiting holes are formed on the surface of the partition 23. The limiting column 404 is slidably connected to the inner wall of the rectangular limiting hole. Two guide rods 24 are fixed to the lower surface of the partition 23. The lifting plate 403 is slidably connected to the surface of the guide rod 24.

[0030] A fixing frame 5 is fixedly connected to the upper surface of the base 1. A driving lead screw 6 is rotatably connected to the inside of the fixing frame 5. A transmission box 15 is fixedly installed on the right side of the fixing frame 5. A driving motor 16 is fixedly installed on the surface of the transmission box 15. The output shaft of the driving motor 16 extends into the interior of the transmission box 15 and is fixedly connected with a driving gear 17. The right end of the driving lead screw 6 extends into the interior of the transmission box 15, and a driven gear 18 is fixedly arranged at the end of the driving lead screw 6. The driving gear 17 meshes with the driven gear 18.

[0031] Through the above technical solution, a T-shaped driving block 7 is threadedly connected to the surface of the driving lead screw 6. Two extension plates 8 are fixedly connected to the upper surface of the T-shaped driving block 7. A fixing roller 9 is fixedly connected between the opposite surfaces of the two extension plates 8. Moreover, mounting plates 10 are fixedly connected to the tops of the two extension plates 8.

[0032] The inner surface of the fixing bracket 5 is fixedly connected with a limiting slide bar 19. A limiting through hole matching the limiting slide bar 19 is formed on the surface of the T-shaped driving block 7. The T-shaped driving block 7 is slidably connected with the surface of the limiting slide bar 19 through the limiting through hole.

[0033] It should be noted that a pressure sensor 14 is fixedly installed on the surface of the fixed roller 9. The pressure sensor 14 is used to detect the pressure generated by the rope on the surface of the fixed roller 9. When the rope is stretched, the rope also gives the same pressure to the surface of the fixed roller 9, so as to detect the pressure received by the surface of the fixed roller 9 by using the pressure sensor 14, and then conveniently obtain the tensile force data of the rope.

[0034] Through the above technical solution, a hydraulic push rod 11 is fixedly installed on the upper surface of the mounting plate 10. The telescopic rod of the hydraulic push rod 11 extends below the mounting plate 10 and is fixedly connected with a positioning pressing block 12. An arc-shaped limiting groove 13 is formed on the lower surface of the positioning pressing block 12. The position of the positioning pressing block 12 corresponds to that of the fixed roller 9, and the size of the arc-shaped limiting groove 13 matches that of the fixed roller 9.

[0035] It is worth noting that by forming an arc-shaped limiting groove 13 on the lower surface of the positioning pressing block 12, the arc-shaped limiting groove 13 on the surface of the positioning pressing block 12 can be driven by the hydraulic push rod 11 to wrap the surface of the fixed roller 9, so as to limit the rope on the surface of the fixed roller 9 by using the arc-shaped limiting groove 13, improve the fixing effect of the rope, and prevent the phenomenon of slipping at one end of the rope during the stretching process.

[0036] The limiting mechanism 4 includes a lifting motor 401 fixedly installed on the upper surface of the base 1. The output shaft of the lifting motor 401 is fixed with a lifting lead screw 402. A lifting plate 403 is threadedly connected to the surface of the lifting lead screw 402. Two limiting columns 404 are fixedly connected to the upper surface of the lifting plate 403.

[0037] It should be noted that a control panel is fixedly arranged on the surface of the extension plate 8. The control panel is electrically connected to the pressure sensor 14, the driving motor 16 and the lifting motor 401 by wires. The pressure sensor 14 can synchronously display the detection data on the display screen of the control panel, which is convenient for the staff to view.

[0038] Through the above technical solution, the lifting motor 401 can be used to drive the limiting column 404 to insert into the positioning hole 22 on the surface of the positioning ring 21, so as to realize the limiting and fixing of the limiting roller 3.

[0039] Working principle: When detecting the tensile force of the rope of a tower crane, first wind one end of the rope around the surface of the limit roller 3 for several turns, and the number of winding turns can be adjusted according to the length of the rope. Then, drive the lifting lead screw 402 to rotate by the lifting motor 401, and then drive the lifting plate 403 to move upward on the surfaces of the two guide rods 24, and then drive the two limit posts 404 to insert into the positioning holes 22 on the surface of the positioning ring 21, so as to position the limit roller 3. Then, wind the other end of the rope around the surface of the fixed roller 9, and then drive the positioning pressing block 12 to move downward by the hydraulic push rod 11, and use the positioning pressing block 12 to press and fix the rope, so as to improve the stability of both ends of the rope at the same time, and then it is beneficial to detect the tensile force of the rope. Then, drive the driving gear 17 to rotate by the driving motor 16, and then drive the driven gear 18 and the driving lead screw 6 to rotate. The driving lead screw 6 drives the T-shaped driving block 7 to move horizontally at the bottom of the fixed frame 5, and then drives the extension plate 8 and the mounting plate 10 to move at the same time, so as to stretch and test the rope by the fixed roller 9. At the same time, use the pressure sensor 14 on the surface of the fixed roller 9 to detect the pressure on the surface of the fixed roller 9 exerted by the rope, and then obtain the real-time tensile force data and synchronously display the data on the control panel for the convenience of the staff to view. The whole process realizes intelligence and automation, which is beneficial to improving the efficiency of the detection work.

[0040] Finally, it should be noted that: In the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are involved. The above are only the preferred embodiments of the present invention and are not used to limit the present invention. 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. An intelligent inspection device for tower cranes, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected with two symmetrically arranged support plates (2). A limiting roller (3) is rotatably connected between the two support plates (2). The limiting roller (3) is used for winding and limiting one end of the crane rope. A limiting mechanism (4) is arranged between the two support plates (2), and the limiting mechanism (4) is used for limiting the limiting roller (3). The upper surface of the base (1) is fixedly connected with a fixed frame (5). The inner side of the fixed frame (5) is rotatably connected with a driving lead screw (6). The surface of the driving lead screw (6) is threadedly connected with a T-shaped driving block (7). The upper surface of the T-shaped driving block (7) is fixedly connected with two extension plates (8). A fixed roller (9) is fixedly connected between the opposite surfaces of the two extension plates (8). The tops of the two extension plates (8) are fixedly connected with a mounting plate (10). A hydraulic push rod (11) is fixedly installed on the upper surface of the mounting plate (10). The telescopic rod of the hydraulic push rod (11) extends below the mounting plate (10) and is fixedly connected with a positioning pressure block (12). An arc-shaped limiting groove (13) is formed on the lower surface of the positioning pressure block (12). The position of the positioning pressure block (12) corresponds to that of the fixed roller (9), and the size of the arc-shaped limiting groove (13) matches that of the fixed roller (9). The limiting mechanism (4) includes a lifting motor (401) fixedly installed on the upper surface of the base (1). The output shaft of the lifting motor (401) is fixed with a lifting lead screw (402). The surface of the lifting lead screw (402) is threadedly connected with a lifting plate (403). The upper surface of the lifting plate (403) is fixedly connected with two limiting columns (404).

2. The intelligent inspection device for tower crane according to claim 1, wherein: A pressure sensor (14) is fixedly installed on the surface of the fixed roller (9). The pressure sensor (14) is used for detecting the pressure generated by the rope on the surface of the fixed roller (9).

3. The intelligent inspection device for tower cranes according to claim 1, wherein: A transmission box (15) is fixedly installed on the right side of the fixed frame (5). A driving motor (16) is fixedly installed on the surface of the transmission box (15). The output shaft of the driving motor (16) extends into the interior of the transmission box (15) and is fixedly connected with a driving gear (17).

4. An intelligent inspection device for a tower crane according to claim 3, characterized in that: The right end of the driving lead screw (6) extends into the interior of the transmission box (15), and a driven gear (18) is fixedly arranged at the end of the driving lead screw (6). The driving gear (17) meshes with the driven gear (18).

5. An intelligent inspection device for a tower crane according to claim 1, characterized in that: A limiting slide bar (19) is fixedly connected to the inner side surface of the fixed frame (5). A limiting through hole matching the limiting slide bar (19) is formed on the surface of the T-shaped driving block (7). The T-shaped driving block (7) is slidably connected to the surface of the limiting slide bar (19) through the limiting through hole.

6. The intelligent inspection device for tower crane according to claim 1, characterized in that: Two rotating stop discs (20) are fixedly connected to the surface of the limiting roller (3). Positioning rings (21) are fixedly connected to the opposite surfaces of the two rotating stop discs (20). A plurality of positioning holes (22) are formed on the surface of the positioning ring (21). The position of the positioning ring (21) corresponds to that of the limiting columns (404).

7. An intelligent inspection device for a tower crane according to claim 6, characterized in that: The size of the positioning hole (22) matches that of the limiting post (404), and several positioning holes (22) are evenly distributed in an annular array on the surface of the positioning ring (21).

8. The intelligent inspection device for tower crane according to claim 1, wherein: A partition plate (23) is fixedly connected between the two support plates (2). Two rectangular limiting holes are formed in the surface of the partition plate (23). The limiting post (404) is slidably connected to the inner wall of the rectangular limiting hole. Two guide rods (24) are fixed to the lower surface of the partition plate (23). The lifting plate (403) is slidably connected to the surface of the guide rods (24).

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