Hoisting machine for dismantling chemical roof beam

Abstract

The utility model discloses a lifting machine for dismantling a chemical roof beam, which belongs to the technical field of engineering machinery and comprises a bottom plate, a support column is fixedly connected to the top of the bottom plate close to the middle position, a bearing plate is fixedly connected to the top of the support column, a winding drum is mounted at the output end of a first motor, and the winding drum is fixedly connected with the bearing plate. A first extending arm and a second extending arm are installed on one side of the bearing plate, a connecting strip is installed at the bottom of the connecting piece, two clamping mechanisms are arranged in the connecting strip, the clamping mechanisms are designed, a rotating strip and a semi-toothed plate are driven to rotate through a second motor, and under the action of the first connecting strip and the rotating strip, the clamping mechanisms are driven to rotate. By means of the clamping mechanism, the clamping strip below the second connecting strip is tightened, the roof beams of different sizes can be clamped, the universality of the device can be effectively improved through the clamping mechanism, and the situation that due to the sizes of the roof beams, the device is limited, and parts are frequently replaced is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to a chemical roof beam dismantling crane. Background Art

[0002] In the demolition project of a chemical plant, it is often necessary to demolish heavy structures such as large roof beams. These structures are usually made of concrete, steel and other materials. Professional lifting equipment is required during the demolition and lifting process to ensure the safety and efficiency of the work. Chemical roof beam removal crane, as a heavy lifting equipment, plays a vital role in such scenarios and provides a safe and efficient solution for chemical plant demolition projects.

[0003] The existing chemical roof dismantling crane can only dismantle and lift one size of roof due to structural fixing problems. However, when faced with a chemical plant composed of beams of various sizes, this type of chemical roof dismantling crane can only dismantle one size of roof, and it is also necessary to replace different dismantling mechanisms according to the size of the on-site chemical plant roof to meet the dismantling needs, which will affect the overall chemical plant dismantling work, is time-consuming and labor-intensive, and has low work efficiency.

[0004] Therefore, it is urgent to provide a kind of chemical industry roof beam dismantling crane to solve the above problems. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the existing chemical roof dismantling crane can only dismantle and lift the beams of one size due to the structural fixing problem. However, when faced with a chemical plant composed of beams of various sizes, this type of chemical roof dismantling crane can only dismantle the beams of one size, and it is also necessary to replace different dismantling mechanisms according to the size of the on-site chemical plant beams to meet the dismantling needs, which will affect the overall chemical plant dismantling work, is time-consuming and labor-intensive, and has low work efficiency.

[0006] In order to solve the above technical problems, a technical solution adopted by the utility model is: a chemical roof beam removal crane, comprising a bottom plate, a support column is fixedly connected to the middle position of the top of the bottom plate, a load-bearing plate is fixedly connected to the top of the support column, an operating room and a protective cover are respectively installed on the top of the load-bearing plate, a first motor is installed inside the protective cover, a drum is installed at the output end of the first motor, and a steel cable is installed on the outer wall of the drum;

[0007] A first extension arm and a second extension arm are respectively installed on one side of the load-bearing plate, and a connecting piece is rotatably connected to the outer wall of the steel cable near the first extension arm, and a connecting strip is installed at the bottom of the connecting piece;

[0008] Two clamping mechanisms are arranged inside the connecting strip, the front end and the rear end of the connecting strip are fixedly connected with fixed plates, the outer ends of the two fixed plates are provided with limiting slide grooves, the tops of the two fixed plates are installed with hydraulic cylinders, and the output ends of the two hydraulic cylinders are installed with cutting machines.

[0009] The utility model is further configured as follows: a fixing ring is installed at the end of the second extension arm, and the steel cable is connected to the inside of the fixing ring through a connecting piece.

[0010] Through the above technical solution, the different directions of rotation of the first motor are used to control the synchronous rotation of the reel, so that the connection part is controlled to rise or fall by winding the steel cable, which is convenient for subsequent operations.

[0011] The utility model is further configured as follows: the clamping mechanism includes a partition installed inside the connecting strip, two second motors are installed at the rear end of the partition, the output ends of the two second motors are fixedly connected to a rotating bar, the outer walls of the two rotating bars are fixedly connected to a half-toothed plate, the front end of the partition is rotatably connected to two first connecting bars, the other ends of the two first connecting bars are rotatably connected to a second connecting bar, and the bottoms of the two second connecting bars are fixedly connected to a clamping bar.

[0012] Through the above technical scheme, the rotation of the rotating bar and the semi-toothed plate is controlled by the rotation of the second motor. When the rotating bar rotates in different directions, the second connecting bar is limited by the first connecting bar, so that the second connecting bar can only make circular motion around the fixed point of the first connecting bar. While the second connecting bar moves, it will be limited by the second connecting bar, which finally makes the clamping bar retract or open to complete the clamping step of the beam.

[0013] The utility model is further configured as follows: two of the second motors are symmetrically installed at the rear end of the partition.

[0014] Through the above technical solution, the symmetrical structure makes the clamping mechanism look beautiful as a whole and is conducive to improving the stability of clamping.

[0015] The utility model is further configured as follows: the two half tooth plates mesh with each other.

[0016] Through the above technical solution, the mutual engagement can effectively transmit the rotational force, thereby realizing the transmission of the mechanical system, ensuring the smooth and efficient rotation and reducing energy loss.

[0017] The utility model is further configured as follows: the second connecting bar is installed between the rotating bar and the first connecting bar.

[0018] Through the above technical solution, when the second connecting bar moves, it will be restricted by the rotating bar and the first connecting bar at the same time, so that the clamping bar of the second connecting bar can achieve clamping and loosening actions.

[0019] The utility model is further configured as follows: a sliding block corresponding to the limiting sliding groove is installed on the outer wall of the cutting machine.

[0020] Through the above technical solution, the limiting slide groove can well limit the movement trajectory of the cutting machine, so that it can well cut the beams under the action of the hydraulic cylinder.

[0021] The beneficial effects of the utility model are as follows:

[0022] 1. The utility model designs a clamping mechanism, and drives the rotating bar and the semi-toothed plate to rotate through the second motor. Under the action of the first connecting bar and the rotating bar, the clamping bar below the second connecting bar is tightened, so that it can clamp beams of different sizes. The clamping mechanism can effectively improve the versatility of the device, and it is no longer limited by the size of the beam and the frequent replacement of parts.

[0023] 2. The utility model installs a hydraulic cylinder and a cutting machine at the front and rear ends of the connecting strip. After the clamping work is completed, the hydraulic cylinder can be started to push the cutting machine to cut the beam. After the cutting is completed, it can be lifted away to complete the removal of the beam, eliminating the step of manually cutting the beam, which is conducive to improving work efficiency and safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional diagram of the utility model;

[0025] Figure 2 It is a front view of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the connection strip of the utility model;

[0027] Figure 4 It is a schematic diagram of the clamping mechanism of the utility model.

[0028] In the figure: 1. bottom plate; 2. support column; 3. load-bearing plate; 4. operating room; 5. protective cover; 6. first motor; 7. reel; 8. steel cable; 9. first extension arm; 10. second extension arm; 11. connecting piece; 12. connecting strip; 13. clamping mechanism; 1301. partition; 1302. second motor; 1303. rotating strip; 1304. semi-toothed plate; 1305. first connecting strip; 1306. second connecting strip; 1307. clamping strip; 14. fixed plate; 15. limiting slide groove; 16. hydraulic cylinder; 17. cutting machine. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0030] See also Figure 1 - Figure 3 A chemical roof dismantling crane comprises a base plate 1, a support column 2 is fixedly connected to the middle position of the top of the base plate 1, a load-bearing plate 3 is fixedly connected to the top of the support column 2, an operating room 4 and a protective cover 5 are respectively installed on the top of the load-bearing plate 3, a first motor 6 is installed inside the protective cover 5, a drum 7 is installed at the output end of the first motor 6, a steel cable 8 is installed on the outer wall of the drum 7, a first extension arm 9 and a second extension arm 10 are respectively installed on one side of the load-bearing plate 3, a fixing ring is installed at the end of the second extension arm 10, and the steel cable 8 is connected to the inside of the fixing ring through a connecting piece 11, the different steering directions of the first motor 6 are used to control the synchronous steering of the drum 7, so that the connecting piece 11 is controlled to rise or fall by the winding of the steel cable 8, so as to facilitate subsequent operations, the outer wall of the steel cable 8 near the position of the first extension arm 9 is rotatably connected with the connecting piece 11, and a connecting strip 12 is installed at the bottom of the connecting piece 11.

[0031] like Figure 4As shown, two clamping mechanisms 13 are arranged inside the connecting bar 12, and the clamping mechanism 13 includes a partition 1301 installed inside the connecting bar 12, and two second motors 1302 are installed at the rear end of the partition 1301. The two second motors 1302 are symmetrically installed at the rear end of the partition 1301. The symmetrical structure makes the clamping mechanism 13 as a whole beautiful and is conducive to improving the stability of clamping. The output ends of the two second motors 1302 are fixedly connected with a rotating bar 1303, and the outer walls of the two rotating bars 1303 are fixedly connected with a half-tooth plate 1304. The two half-tooth plates 1304 are meshed with each other, and the mutual meshing can effectively transmit the rotational force, thereby realizing the transmission of the mechanical system, ensuring the smooth and efficient rotation, and reducing energy loss. The front end of the partition 1301 is rotatably connected to two first connecting bars 1305, and the other ends of the two first connecting bars 1305 are rotatably connected to the second connecting bar 1306. 6 is installed between the rotating bar 1303 and the first connecting bar 1305. When the second connecting bar 1306 moves, it will be restricted by the rotating bar 1303 and the first connecting bar 1305 at the same time, so that the clamping bar 1307 of the second connecting bar 1306 can achieve clamping and loosening actions. The bottoms of the two second connecting bars 1306 are fixedly connected with the clamping bars 1307. The rotation of the second motor 1302 is used to control the rotation of the rotating bar 1303 and the semi-toothed plate 1304. When the rotating bar 1303 rotates in different directions, the second connecting bar 1306 is limited by the first connecting bar 1305, so that the second connecting bar 1306 can only make a circular motion with the fixed point of the first connecting bar 1305. While the second connecting bar 1306 moves, it will be limited by the second connecting bar 1306, and finally the clamping bar 1307 is rolled up or opened to complete the clamping step of the beam.

[0032] like Figure 3 As shown, the front and rear ends of the connecting strip 12 are fixedly connected with a fixing plate 14, and the outer ends of the two fixing plates 14 are provided with a limiting slide groove 15. The tops of the two fixing plates 14 are installed with a hydraulic cylinder 16, and the output ends of the two hydraulic cylinders 16 are installed with a cutting machine 17. The outer wall of the cutting machine 17 is installed with a sliding block corresponding to the limiting slide groove 15. The limiting slide groove 15 can well limit the movement trajectory of the cutting machine 17, so that it can well cut the beam under the action of the hydraulic cylinder 16.

[0033] When the utility model is used, when the roof beam is to be dismantled, the staff needs to select the connecting strips 12 of different sizes according to the size of the roof beam in advance, and start to install the two clamping mechanisms 13. Now the partition 1301 is determined and installed inside the connecting strip 12, and then the second motor 1302 is installed at the specified position of the partition 1301, and then the rotating strip 1303 is fixedly connected to the output end of the second motor 1302 so that it can rotate synchronously with the operation of the second motor 1302. At this time, the semi-toothed plate 1304 is installed on the outer wall of the rotating bar 1303. After completing the installation of the related parts of the second motor 1302, the first connecting bar 1305 is installed at the position specified by the partition 1301 to ensure that it can rotate smoothly. Then the second connecting bar 1306 equipped with the clamping bar 1307 is installed between the rotating bar 1303 and the first connecting bar 1305. The rotation of the second motor 1302 is used to control the rotation of the rotating bar 1303 and the semi-toothed plate 1304. When the rotating bar 1303 rotates in different directions When the second connecting bar 1306 moves, the first connecting bar 1305 is used to limit the second connecting bar 1306, so that the second connecting bar 1306 can only make a circular motion with the fixed point of the first connecting bar 1305. While the second connecting bar 1306 is moving, it will be limited by the second connecting bar 1306, so that the clamping bar 1307 is finally continuously clamped to clamp the roof beam, which is convenient for the cutting machine 17 to cut it. After the installation of the clamping mechanism 13 is completed, the hydraulic cylinder 16 and the cutting machine 17 are installed in this way. After it is installed at the designated position, you can enter the operating room 4, control the connecting piece 11 to connect the connecting strip 12, and control the direction of the first motor 6 to mobilize the connecting strip 12 to rise and fall through the reel 7. After reaching the designated position, control the clamping mechanism 13 to clamp the beam. After completing the clamping and fixing work, you can control the hydraulic cylinder 16 to push the cutting machine 17 to cut the beam until it is completely cut and hoisted to the ground, and repeat the above steps until the cutting and removal of the entire beam is completed.

[0034] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A chemical roof dismantling crane, comprising a base plate (1), characterized in that: A support column (2) is fixedly connected to the middle of the top of the base plate (1), a load-bearing plate (3) is fixedly connected to the top of the support column (2), an operating room (4) and a protective cover (5) are respectively installed on the top of the load-bearing plate (3), a first motor (6) is installed inside the protective cover (5), a reel (7) is installed at the output end of the first motor (6), and a steel cable (8) is installed on the outer wall of the reel (7); A first extension arm (9) and a second extension arm (10) are respectively installed on one side of the load-bearing plate (3); an outer wall of the steel cable (8) near the first extension arm (9) is rotatably connected to a connecting piece (11); a connecting strip (12) is installed at the bottom of the connecting piece (11); Two clamping mechanisms (13) are arranged inside the connecting strip (12); the front end and the rear end of the connecting strip (12) are fixedly connected to a fixing plate (14); the outer ends of the two fixing plates (14) are provided with a limiting sliding groove (15); the tops of the two fixing plates (14) are installed with a hydraulic cylinder (16); and the output ends of the two hydraulic cylinders (16) are installed with a cutting machine (17).

2. A chemical roof dismantling crane according to claim 1, characterized in that: A fixing ring is installed at the end of the second extension arm (10), and the steel cable (8) is connected to the inside of the fixing ring through a connecting piece (11).

3. A chemical roof dismantling crane according to claim 1, characterized in that: The clamping mechanism (13) comprises a partition (1301) installed inside the connecting bar (12), two second motors (1302) are installed at the rear end of the partition (1301), the output ends of the two second motors (1302) are fixedly connected to a rotating bar (1303), the outer walls of the two rotating bars (1303) are fixedly connected to a semi-toothed plate (1304), the front end of the partition (1301) is rotatably connected to two first connecting bars (1305), the other ends of the two first connecting bars (1305) are rotatably connected to a second connecting bar (1306), and the bottoms of the two second connecting bars (1306) are fixedly connected to a clamping bar (1307).

4. A chemical roof dismantling crane according to claim 3, characterized in that: The two second motors (1302) are symmetrically mounted at the rear end of the partition (1301).

5. A chemical roof dismantling crane according to claim 3, characterized in that: The two half tooth plates (1304) mesh with each other.

6. A chemical roof dismantling crane according to claim 3, characterized in that: The second connecting bar (1306) is installed between the rotating bar (1303) and the first connecting bar (1305).

7. A chemical roof dismantling crane according to claim 1, characterized in that: The outer wall of the cutting machine (17) is provided with a sliding block corresponding to the limiting sliding groove (15).

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