CN113666240B - Electromagnetic fixing system and floor removal lifting method - Google Patents

Abstract

An electromagnetic fixing system for dismantling and lifting a floor and a floor dismantling and lifting method belong to the technical field of engineering dismantling. The lifting device comprises a fixed limiting device, a traction device, a top block, a connecting rod grapple, a lifting frame, an electromagnetic traction block, a pin shaft A and a pin shaft B, wherein the traction device is firmly fixed on a probe rod of the lifting frame under the combined action of the electrified electromagnetic traction block and the connecting rod grapple, the fixed limiting device and the traction device are firmly fixed together through a locking pin shaft, finally, an electromagnetic ring is electrified to generate strong magnetism to suck an adjustable suction nut, the locking pin shaft is prevented from loosening during working operation, after the installation of an electromagnetic fixing system is completed, workers are not required to operate around during the whole floor dismantling and lifting process, the degree of automation is high, the anti-falling protection function is provided, the floor of the whole dismantling and lifting operation cannot shake, and the working efficiency is remarkably improved.

Description

Electromagnetic fixing system and floor removal lifting method

technical field

The invention relates to an electromagnetic fixing system and a lifting method for demolition of a floor slab, belonging to the technical field of engineering demolition.

Background technique

At present, building demolition (especially high-rise buildings) requires a lot of floor demolition and lifting work. Usually, the method of cutting, drilling and fixing, and then steel wire lifting is mainly used, but this method is inefficient and requires a lot of labor. Accident prone.

Existing devices in the prior art can be used for floor slab fixing and lifting operations. Invention patents with patent numbers 20181144388.7 and 201811443825.5 disclose two fixing systems and floor removal and lifting methods, which solve the problems that the steel wire rope is easy to wear during the removal process of the floor, and the smoothness of lifting is difficult to control. However, when using these two kinds of limit components to hoist the floor, the two ends of the first horizontal support are hinged, and the rotation instability and the shaking of the floor are prone to occur during work, and workers are always required to operate by the side. The operation is cumbersome, the degree of automation is low, and the efficiency is low. Low.

Contents of the invention

Aiming at the deficiencies of the prior art, the present invention provides an electromagnetic fixing system and a floor removal and lifting method, so as to realize the removal and lifting operation of the floor.

The present invention is achieved through the following technical solutions. The electromagnetic fixing system includes a fixed limit device, a traction device, a top block, a connecting rod grab, a lifting frame, an electromagnetic traction block, pin A and pin B, and the electromagnetic traction block is fixed on the lifting frame. The pin A is hinged with the lifting frame, the top block is inserted into the lifting frame and the electromagnetic traction block, the pin B is fixed on the top block, and forms a high pair connection with the hook of the connecting rod, and the upper end of the traction device is attracted to the electromagnetic traction block , The fixed limit device cooperates with the traction device.

The traction device is composed of an introduction electromagnet, a locking pin, a traction block, an adjustable suction nut, an electromagnetic ring, and a set screw. The introduction electromagnet is fixed on the traction block, and the electromagnetic ring is fixed on the traction block. The tight pin shaft is inserted into the traction block from the small diameter end and protrudes out of the traction block, and the adjustable suction nut is fixed on the protruding end of the locking pin shaft by a set screw.

Preferably, there are two or more introduction electromagnets.

A positioning shoulder is arranged on the locking pin.

The traction block is provided with a locking pin hole, the center of the locking pin hole is provided with a positioning hole shoulder, the lower end of the traction block is provided with an introduction electromagnet installation hole, and a positioning groove is arranged between the introduction electromagnet installation holes. An annular electromagnetic ring installation hole is provided on the other end of the traction block, and a traction lead-in hypotenuse is arranged on the uppermost end.

Two pin holes B are provided on the top block.

The connecting rod grapple has a symmetrical structure, a pin shaft guide groove and a pin shaft hole are provided on the left and right sides, and a locking grapple is provided at the bottom end for catching the traction device.

The main body of the lifting frame is a ring-shaped frame, and lifting lugs are arranged on the ring-shaped frame, and probe rods are uniformly arranged on the outside of the ring-shaped frame, and each probe rod is provided with a top block opening and a traction block port, and each of the two sides of the probe rod is provided with a Each pin seat is provided with a chamfer at both ends of each pin seat.

Preferably, there are three or more lifting lugs.

Preferably, there are three or more probe rods.

A through hole is opened in the middle of the electromagnetic traction block.

A hole with a size slightly larger than the outer contour of the fixed limiting device is opened in the middle of the floor to be removed.

The benefits of the present invention are: the strong magnetism is generated by electrifying the electromagnetic traction block, which drives the connecting rod grab to rotate around the pin axis A while attracting the traction device, and hooks the lower side of the traction block. The block and the connecting rod grabbing hook are firmly fixed on the probe rod of the lifting frame; then the fixed limit device is placed on the limit device, and the fixed limit device and the traction block are sucked tightly by the imported electromagnet, and Push the locking pin and the adjustable suction nut back into the traction block, the fixed limit device and the traction device are firmly fixed together through the locking pin, and finally the electromagnetic ring is energized to generate strong magnetism to push the adjustable suction nut Absorb to prevent the locking pin from loosening during work.

The electromagnetic fixing system and floor removal and lifting method provided by the present invention, after the electromagnetic fixing system is installed, workers no longer need to operate around, there is no potential safety hazard for personnel, the entire floor removal and lifting process is highly automated, and it has a fall protection function. In addition, the whole floor for dismantling and hoisting operations will not shake, and the operation efficiency is significantly improved.

Description of drawings

Fig. 1 is a structural schematic diagram of the working combined state of the electromagnetic fixing system of the present invention.

Fig. 2 is a partially enlarged view of A in Fig. 1 .

Fig. 3 is a structural schematic diagram of the electromagnetic fixing system of the present invention in a separated state before operation.

Fig. 4 is a schematic diagram of the structure of the traction device of the electromagnetic fixing system of the present invention in a locked state.

Fig. 5 is a schematic diagram of the structure of the traction device of the electromagnetic fixing system of the present invention in an unlocked state.

Fig. 6 is a schematic structural view of the locking pin of the electromagnetic fixing system of the present invention.

Fig. 7 is a structural sectional view of the traction block of the electromagnetic fixing system of the present invention.

Fig. 8 is a schematic structural view of the top block of the electromagnetic fixing system of the present invention.

Fig. 9 is a schematic structural view of the connecting rod grapple of the electromagnetic fixing system of the present invention.

Fig. 10 is a schematic structural view of the lifting frame of the electromagnetic fixing system of the present invention.

FIG. 11 is a partially enlarged view of B in FIG. 10 .

Fig. 12 is a schematic structural view of the electromagnetic traction block of the electromagnetic fixing system of the present invention.

Fig. 13 is a schematic diagram of the process of inserting the electromagnetic fixing system into the floor to be removed in the floor demolition lifting method according to the embodiment of the present invention.

Fig. 14 is a schematic diagram of the floor hoisting operation process of the electromagnetic fixing system in the floor removal and hoisting method according to the embodiment of the present invention.

In the figure, 1, fixed limit device 2, traction device 3, top block 4, connecting rod grab hook 5, lifting frame 6, electromagnetic traction block 7, pin A 8, pin B 9, floor to be removed 10, lifting Wire rope 21, lead-in electromagnet 22, locking pin 23, traction block 24, adjustable suction nut 25, electromagnetic ring 26, set screw 221, positioning shoulder 231, locking pin hole 232, lead-in electromagnet installation Hole 233, positioning groove 234, electromagnetic ring mounting hole 235, positioning hole shoulder 236, traction lead-in bevel 31, pin hole B 41, pin guide groove 42, pin hole A 43, locking grapple 51, ring Skeleton 52, lifting lug 53, probe rod 54, top block opening 55, traction block opening 56, chamfer 57, pin seat 61, top block perforation 91, hole

Detailed ways

All features disclosed in this specification, or steps in all methods or processes disclosed, can be combined in any way, except for mutually exclusive features and or steps.

Any feature disclosed in this specification (including any appended claims, abstract and drawings), unless expressly stated otherwise, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

In describing the present invention, it is to be understood that the terms "upper", "lower", "between", "upper", "middle", "inner", "end", "other end" etc. indicate orientation Or the positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does 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 cannot be construed as a limitation of the present invention.

In the present invention, terms such as "hinged", "installed", "fixed", "inserted", "set", "set", "opened", "fitted" shall be used as In a broad sense, it can be a fixed connection, a detachable connection, or an integration; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediary, and it can be an internal connection between two components. Communication or an interaction relationship between two elements, unless expressly defined otherwise. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention according to specific situations.

Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figure 1, Figure 2 and Figure 3, the electromagnetic fixing system includes a fixed limit device 1, a traction device 2, a top block 3, a connecting rod grab 4, a lifting frame 5, an electromagnetic traction block 6, a pin A7 and a pin B8, first fix the electromagnetic traction block 6 in the probe rod 53 of the lifting frame 5, the middle of the connecting rod grab 4 is hinged with the lifting frame 5 through the pin A7, and then insert the top block 3 into the lifting frame 5 and the electromagnetic traction block 6 The pin shaft B8 fixed on the top block 3 is inserted into the connecting rod grabber 4 at the same time to form a high-pair connection, the upper end of the traction device 2 is sucked together by the electromagnetic traction block 6, and the fixed limit device 1 cooperates with the traction device 2.

The traction device 2 shown in Fig. 4 and Fig. 5 is made up of lead-in electromagnet 21, locking pin shaft 22, traction block 23, adjustable suction nut 24, electromagnetic ring 25, set screw 26, two lead-in electromagnets 21 are respectively fixed in the guide electromagnet installation hole 232 on the traction block 23, and the electromagnetic ring 25 is fixed in the annular electromagnetic ring installation hole 234 of the traction block 23, and the locking pin 22 is inserted into the locking pin of the traction block 23 from the small diameter end. Inside the pin shaft hole 231, protrude out the traction block 23, and finally fix the adjustable suction nut 24 on the protruding end of the locking pin shaft 22 through the set screw 26, and adjust the adjustable suction nut 24 according to the usage conditions in the locking position. Position on the pin shaft 22.

As shown in FIG. 6 , a positioning shoulder 221 is provided on the locking pin shaft 22 .

As shown in Figure 7, the traction block 23 is provided with a locking pin shaft hole 231, and a positioning hole shoulder 235 is arranged in the middle of the locking pin shaft hole 231. Lead in between the electromagnet installation holes 232 and be provided with positioning groove 233, offer an annular electromagnetic ring installation hole 234 on the other end of traction block 23, the uppermost end is provided with the traction leading-in hypotenuse 236 that is convenient to traction block 23 importing hanger 5.

Two pin holes B31 are provided on the top block 3 as shown in FIG. 8 .

The connecting rod grapple 4 shown in Figure 9 has a symmetrical structure, and a pin shaft guide groove 41 and a pin shaft hole 42 are respectively provided on the left and right sides, and a locking grapple 43 is arranged at the lowermost end for hooking the traction device 2 .

The main body of the lifting frame 5 shown in Figures 10 and 11 is an annular skeleton 51, on which three lifting lugs 52 are arranged for the lifting operation of the whole system, and three probe rods 53 are evenly arranged on the outer side of the annular skeleton 51, Each probe rod 53 is provided with a top block port 54 and a traction block port 55, a pin seat 57 is respectively arranged on both sides of the probe rod 53, and a chamfer 56 is respectively provided at both ends of each pin seat 57 to prevent the connecting rod from grabbing. Hook 4 interferes with probe rod 53 and collides.

As shown in FIG. 12 , there is a through hole 61 through the middle of the electromagnetic traction block 6 .

When this embodiment is in use, the traction device 2 is first inserted into the traction block mouth 55 of the probe rod 53 on the lifting frame 5. At this time, the top block 3 is at a lower position due to its own weight, and the operator controls the electromagnetic traction block 6 to be energized to generate Strong magnetism, attracting the traction device 2 upwards, at the same time the traction device 2 will lift the top block 3 upwards, drive the connecting rod grab 4 to rotate around the pin axis A7, and hook the lower side of the traction block 23, at this time the traction device 2 It is firmly fixed on the probe rod 53 of the lifting frame 5 under the joint action of the energized electromagnetic traction block 6 and the connecting rod grab 4 .

Pull out the locking pin shaft 22 on the traction device 2 to the unlocked state shown in FIG. The traction block 23 is sucked tightly, and the locking pin 22 and the adjustable suction nut 24 are pushed back into the traction block 23, and the fixed limit device 1 and the traction device 2 are firmly fixed together through the locking pin 22, Finally, the operator controls the energization of the electromagnetic ring 25 to generate strong magnetism to hold the adjustable suction nut 24, preventing the locking pin shaft 22 from loosening during work.

The electromagnetic fixing system of the present invention is not only suitable for the removal and fixing of structural floors, but also suitable for the removal of other structures that can be drilled through.

According to an embodiment of the present invention, the present invention provides a method for removing and transporting a floor by using the electromagnetic fixing system of the present invention. As shown in FIG. 13 , it is a schematic diagram of the process of inserting the electromagnetic fixing system into the floor 9 to be removed in the method of lifting and removing the floor. , as shown in Figure 14, is a schematic diagram of the operation process of the electromagnetic fixing system hoisting the floor 9 to be removed in the floor removal lifting method, and the middle of the floor 9 to be removed is provided with a hole 91 slightly larger than the outer contour size of the shell.

Steps include:

1. A corresponding hole 91 is provided on the floor slab 9 to be removed, and the size of the hole 91 is slightly larger than the outer contour size of the fixed limiting device 1 .

2. Assemble the electromagnetic fixing system, assemble the traction device 2 and the fixing and limiting device 1 in sequence, so that the electromagnetic fixing system is assembled from a separated state before work to a combined state during work.

3. In the initial state, the fixing and limiting device 1 is in a non-working state, and the electromagnetic fixing system is hoisted to the top of the floor 9 to be removed through the wire rope 10 .

4. Align the hole 91 of the floor 9 to be removed, and insert the electromagnetic fixing system downward into the hole 91 of the floor 9 to be removed.

5. Start the motor to change the fixed limit device 1 from a non-working state to a working state.

6. Hoisting by the steel wire rope 10, the electromagnetic fixing system is raised, and the floor 9 to be removed is hoisted to complete the removal and lifting operation of the floor.

7. After the hoisting operation is completed, the operating and fixing limit device 1 changes from the working state to the non-working state, and the electromagnetic fixing system can be drawn out from the hole 91 of the floor slab 9 to be removed.

For those of ordinary skill in the art, according to the teaching of the present invention, without departing from the principle and spirit of the present invention, the changes, modifications, replacements and modifications to the implementation still fall within the protection scope of the present invention within.

Claims (10)

1. An electromagnetic fixing system, including a fixed limit device (1), a traction device (2), a top block (3), a connecting rod grab (4), a lifting frame (5), an electromagnetic traction block (6), The pin A (7) and the pin B (8) are characterized in that: the electromagnetic traction block (6) is fixed on the lifting frame (5), and the connecting rod grab (4) passes through the pin A (7) and the hoist The frame (5) is hinged, the top block (3) is inserted into the lifting frame (5) and the electromagnetic traction block (6), the pin shaft B (8) is fixed on the top block (3), and is connected with the connecting rod grab (4) A high pair connection is formed, the upper end of the traction device (2) is sucked together with the electromagnetic traction block (6), and the fixed limit device (1) cooperates with the traction device (2). 2. The electromagnetic fixing system according to claim 1, characterized in that: the traction device (2) is composed of a lead-in electromagnet (21), a locking pin (22), a traction block (23), an adjustable suction Nut (24), electromagnetic ring (25) and set screw (26), the lead-in electromagnet (21) is fixed on the traction block (23), the electromagnetic ring (25) is fixed on the traction block (23), and the lock The tight pin shaft (22) is inserted into the traction block (23) from the small diameter end and protrudes out of the traction block (23), and the adjustable suction nut (24) is fixed on the locking pin shaft (22) through the set screw (26). out. 3. The electromagnetic fixing system according to claim 2, characterized in that the position of the adjustable suction nut (24) on the locking pin shaft (22) can be adjusted. 4. The electromagnetic fixing system according to claim 2, characterized in that: a locking pin hole (231) is opened on the traction block (23), and a positioning hole shoulder (235) is arranged in the middle of the locking pin hole (231). ), the lowermost end of the traction block (23) is provided with a guide electromagnet installation hole (232), and a positioning groove (233) is provided between the guide electromagnet installation holes (232), and an annular electromagnetic The ring mounting hole (234) is provided with a traction lead-in bevel (236) at the uppermost end. 5. The electromagnetic fixing system according to claim 1, characterized in that: a pin hole B (31) is provided on the top block (3). 6. The electromagnetic fixing system according to claim 1, characterized in that: the connecting rod grab (4) has a symmetrical structure, and a pin shaft guide groove (41) and a pin shaft hole (42) are provided on the left and right sides, A locking grapple (43) is arranged at the lowermost end. 7. The electromagnetic fixing system according to claim 1, characterized in that: the main body of the lifting frame (5) is a ring frame (51), and the ring frame (51) is provided with lifting lugs (52), and the ring frame ( 51) Probe rods (53) are evenly arranged on the outside, each probe rod (53) is provided with a top block opening (54) and a traction block port (55), and a pin seat is provided on each side of the probe rod (53) (57), each pin seat (57) two ends respectively are provided with a chamfer (56). 8. The electromagnetic fixing system according to claim 7, characterized in that there are three or more probe rods (53). 9. The electromagnetic fixing system according to claim 1, characterized in that: a through hole (61) for the top block is opened in the middle of the electromagnetic traction block (6). 10. A method for floor removal and lifting using the electromagnetic fixing system described in any of claims 1-9, characterized in that it comprises: Corresponding holes (91) are opened on the floor (9) to be removed, and the size of the hole (91) opened on the floor (9) to be removed is slightly larger than the outer contour size of the fixed limit device (1); Assemble the electromagnetic fixing system, and assemble the traction device (2) and the fixed limit device (1) in sequence; Insert the electromagnetic fixing system into the hole (91) of the slab (9) to be removed; Operate the fixed limit device (1) from the non-working state to the working state, withstand the floor (9) to be removed, and prevent the floor (9) to be removed from falling; Hoisting by the steel wire rope (10), the electromagnetic fixing system is raised, and the floor (9) to be removed is hoisted to complete the removal and lifting operation of the floor.