Self-climbing material lifting device

Abstract

The utility model relates to a self-climbing type material lifting device, and relates to the field of vertical transportation of materials. According to the technical scheme, an LTD630 elevator is integrated to serve as a power source, a supporting frame is installed on one side of the LTD630 elevator, a rotating shaft is rotationally connected into the supporting frame, the first end of the rotating shaft is connected with a center transmission shaft of a rope winding disc in the LTD630 elevator through a coupler, and the second end of the rotating shaft is connected with the supporting frame through a bearing; the rope winding disc is movably arranged on the rotating shaft in a sleeving manner in a key connection manner, so that the rope winding disc can axially float on the rotating shaft, and a steel wire rope led out of a rope outlet of the LTD630 elevator is wound on the rope winding disc; the first end of the hanging plate is installed at the bottom hanging point position of the LTD630 elevator, the second end of the hanging plate is hinged to a tension sensor, and the end, away from the hanging plate, of the tension sensor is used for being connected with materials needing to be lifted. In this case, a safe, efficient and reliable material lifting solution is provided.

Description

TECHNICAL FIELD

[0001] The utility model relates to material vertical transportation technical field, especially a kind of self-climbing material lifting device. BACKGROUND

[0002] In the field of construction, material hoist is one of indispensable vertical transportation equipment, mainly used to transport building materials such as bricks, concrete, reinforcing steel, etc. from the ground to the required height during building construction. The traditional material hoist is mainly of the following two forms:

[0003] (1) the lifting mechanism of winch type structure is adopted, and such material lifting mechanism is high in cost, bulky in structure, large in space occupation, inconvenient for transportation, installation and storage;

[0004] (2) the material is directly hoisted by the hoist, and the steel wire rope is free to drop, firstly, the steel wire rope is easy to wind around the lower building structure or other equipment, which has risks; secondly, the hoist itself has no load monitoring device, and it cannot guarantee whether the hoisted load is overloaded, which has the risk of overloading.

[0005] With the increasing expansion of construction engineering and the continuous improvement of construction efficiency requirements, the traditional fixed material hoist gradually shows limitations in flexibility, installation convenience, safety and adaptation to complex working conditions. SUMMARY

[0006] The utility model aims at providing a kind of self-climbing material lifting device to solve the problems existing in the prior art.

[0007] To achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0008] A self-climbing material lifting device, comprising an LTD630 hoist, the self-climbing material lifting device further comprises:

[0009] A steel wire rope, the first end of which is suspended on the reserved hanging point of the building or structure, and the second end of which is introduced from the rope inlet of the LTD630 hoist;

[0010] A support frame, installed on one side of the LTD630 hoist, with a rotating shaft rotatably connected inside, the first end of the rotating shaft is connected with the center transmission shaft of the rope winding disc inside the LTD630 hoist through a shaft coupling, and the second end of the rotating shaft is rotatably connected with the support frame through a bearing;

[0011] A rope winding disc, which is movably sleeved on the rotating shaft by key connection, so that the rope winding disc can axially move on the rotating shaft, and the steel wire rope introduced from the rope outlet of the LTD630 hoist is wound on the rope winding disc; and

[0012] A hanging plate is installed at the bottom hanging point of the LTD630 hoist, and a tension sensor is hinged at the second end of the hanging plate, and the end of the tension sensor away from the hanging plate is used to connect the material to be lifted, so that the weight of the lifted material can be monitored to avoid overload.

[0013] In a possible implementation, a compression spring is arranged on the outer periphery of the coupling, the first end of the compression spring abuts against the first side of the rope winding disc, and the second end of the compression spring abuts against the shell of the LTD630 hoist.

[0014] A nut is threadedly connected to the rotating shaft, the nut is located on the side of the bearing close to the rope winding disc, a disc spring and a friction plate are movably arranged on the rotating shaft, the first end of the disc spring abuts against the nut, the second end of the disc spring abuts against the first end of the friction plate, and the second end of the friction plate abuts against the second side of the rope winding disc.

[0015] In a possible implementation, the rope outlet of the LTD630 hoist is provided with a rope guide spring for transitioning the steel wire rope.

[0016] In a possible implementation, the tension sensor is a plate ring type tension sensor.

[0017] In a possible implementation, the coupling is a plum blossom type coupling.

[0018] In a possible implementation, a guide wheel is further arranged in the support frame and located above the rope winding disc, and the steel wire rope guided out of the rope outlet of the LTD630 hoist is wound on the rope winding disc through the guide wheel.

[0019] In a possible implementation, a control electric box is further installed on the shell of the LTD630 hoist, and the control electric box is electrically connected with the tension sensor and the LTD630 hoist.

[0020] In a possible implementation, the first end of the steel wire rope is hung on a reserved hanging point of a building or structure through a first U-shaped shackle.

[0021] In a possible implementation, the end of the tension sensor away from the hanging plate is connected with the material to be lifted through a second U-shaped shackle.

[0022] The technical scheme provided by the utility model has at least the following beneficial effects:

[0023] The technical scheme is characterized in that: the LTD630 hoist is integrated as a power source, a support frame is installed on one side of the LTD630 hoist, a rotating shaft is rotatably connected in the support frame, the first end of the rotating shaft is connected with the center transmission shaft of the rope winding drum in the LTD630 hoist through a shaft coupling, the second end of the rotating shaft is connected with the support frame through a bearing, the rope winding drum is movably sleeved on the rotating shaft through a key connection, the steel wire rope discharged from the rope outlet of the LTD630 hoist is wound on the rope winding drum, the first end of the hanging plate is installed at the bottom hanging point position of the LTD630 hoist, the second end of the hanging plate is hingedly connected with the tension sensor, and the end of the tension sensor away from the hanging plate is used for connecting the material to be lifted. BRIEF DESCRIPTION OF DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, and are used to explain the present application together with the embodiments of the present application, and do not constitute a limitation on the present application.

[0025] Figure 1 A structure schematic view of the self-climbing material lifting device provided by one exemplary embodiment of the present application is shown.

[0026] In the drawing: 1, steel wire rope; 2, first U-shaped unloading buckle; 3, control electric box; 4, LTD630 hoist; 5, shaft coupling; 6, compression spring; 7, rope winding drum; 8, support frame; 9, rope guide spring; 10, hanging plate; 11, tension sensor; 12, second U-shaped unloading buckle; 13, guide wheel; 14, rotating shaft; 15, bearing; 16, nut; 17, disc spring; 18, friction plate. DETAILED DESCRIPTION

[0027] The technical scheme in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0028] Wherein, same parts are denoted by same reference numerals. It should be noted that the words "front", "back", "left", "right", "upper" and "lower" used in the following description refer to the directions in the drawings of the utility model, and the words "bottom" and "top", "inner" and "outer" refer to the directions towards or away from a particular component. In addition, the terms "first" and "second" are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an implied indication of the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two.

[0029] The utility model will be further described below in combination with the drawings and examples.

[0030] Figure 1 The structure schematic diagram of the self-climbing material lifting device provided by one example embodiment of the utility model is shown, which comprises an LTD630 hoist 4, a steel wire rope 1, a support frame 8, a rope collecting disc 7 and a hanging plate 10. The first end of the steel wire rope 1 is hung on the reserved hanging point of a building or structure, and the second end of the steel wire rope 1 is introduced from the rope inlet of the LTD630 hoist 4. The support frame 8 is installed on one side of the LTD630 hoist 4, and a rotating shaft 14 is rotatably connected in the support frame 8. The first end of the rotating shaft 14 is connected with the central transmission shaft of the rope winding disc in the LTD630 hoist 4 through a coupling 5, and the second end of the rotating shaft 14 is rotatably connected with the support frame 8 through a bearing 15. The rope collecting disc 7 is movably sleeved on the rotating shaft 14 through a key connection, so that the rope collecting disc 7 can axially move on the rotating shaft 14 (but cannot radially move), and the steel wire rope 1 introduced from the rope outlet of the LTD630 hoist 4 is wound on the rope collecting disc 7. The first end of the hanging plate 10 is installed at the bottom hanging point position of the LTD630 hoist 4, and the second end of the hanging plate 10 is hingedly connected with a tension sensor 11. The end of the tension sensor 11 away from the hanging plate 10 is used to connect the material to be lifted, and the tension sensor 11 can monitor the weight of the hoisted material to avoid overload use.

[0031] In the embodiments of the present application, the self-climbing material lifting device is combined with the LTD630 hoist 4, the steel wire rope 1, the support frame 8, the rope collecting disc 7 and the hanging plate 10, and the connection of the rotating shaft 14 in the support frame 8 with the central transmission shaft of the rope winding disc in the LTD630 hoist 4 and the key connection design of the rope collecting disc 7 on the rotating shaft 14 ensure that the rope collecting disc 7 can not only axially move but also stably rotate, so as to realize the effective winding and release of the steel wire rope 1. At the same time, the tension sensor 11 hingedly connected at the end of the hanging plate 10 can monitor and feedback the weight of the hoisted material in real time, prevent overload use, and ensure the safety and accuracy of operation.

[0032] In one example, the tension sensor 11 is a plate ring type tension sensor. The plate ring type tension sensor (also known as a ring tension sensor or a sling type tension sensor) is a device specially designed for measuring tension or tension, which is usually in the shape of a ring or a plate ring structure. This type of sensor is very suitable for vertical hoisting or traction applications, because it can be directly integrated into the sling, chain or other hoisting tools to monitor the weight of the load in real time during material lifting.

[0033] It should be noted that the LTD630 hoist 4 is a device specially designed for high-altitude operation, which is driven by a three-phase asynchronous motor, and completes the climbing action along the wire rope through the speed reduction mechanism and the rope winding disc. This hoist is usually equipped with a centrifugal speed limiting device to ensure the safety of operation. In one example, the brand of the LTD630 hoist used in this application is Fenghong, the model is LTD630, the power mode is motor, the weight is 53 kg, the power is between 1.1 and 1.8 kilowatts, and the carrying capacity is between 500 and 1000 kilograms.

[0034] Further, the outer periphery of the coupling 5 movably sleeves a compression spring 6, the first end of the compression spring 6 abuts against the first side of the rope winding disc 7, and the second end of the compression spring 6 abuts against the shell of the LTD630 hoist 4; the shaft 14 is also threadedly connected with a nut 16, the nut 16 is located on the side of the bearing 15 close to the rope winding disc 7, and the shaft 14 movably sleeves a disc spring 17 and a friction plate 18, the first end of the disc spring 17 abuts against the nut 16, the second end of the disc spring 17 abuts against the first end of the friction plate 18, and the second end of the friction plate 18 abuts against the second side of the rope winding disc 7.

[0035] In the embodiment of the application, since the diameters of the rope winding disc in the LTD630 hoist 4 and the rope winding disc 7 are not completely consistent, during the ascending or descending process, the rope winding disc 7 needs to provide part of the braking torque through the cooperation of the friction plate 18, the disc spring 17, the nut 16 and the compression spring 6 (the compression spring 6 provides pressure on the left side of the rope winding disc 7, the disc spring 17 on the right side of the rope winding disc 7 provides pressure on the friction plate 18 by abutting against the nut 16, thereby making the friction plate 18 provide friction force to the rope winding disc 7, and the size of the friction force can be adjusted by adjusting the position of the nut 16 on the shaft 14), in order to balance the rope winding speed of the LTD630 hoist 4 and the rope winding disc 7, so that the rope winding speed of the two is consistent during the ascending or descending process.

[0036] In one example, the coupling 5 is a plum coupling. The plum coupling (also known as a resilient pin coupling or claw coupling) is a common mechanical transmission component used to connect two shafts and transmit torque. It is named after the shape of its middle part, which resembles a plum petal, usually made of metal (such as steel or aluminum alloy), and internally embedded with elastic elements (such as rubber, nylon or other synthetic materials). This design allows the plum coupling to provide both rigid connection for effective power transmission and certain flexibility and buffering capacity to absorb vibrations and compensate for slight shaft misalignment.

[0037] Preferably, the rope outlet of the LTD630 hoist 4 has a rope guide spring 9 that plays a transitional role for the steel wire rope 1, ensuring that the steel wire rope 1 can be smoothly and orderly wound or released when entering and leaving the LTD630 hoist 4, reducing wear and fatigue of the steel wire rope 1 due to sudden bending or friction, thereby improving the service life of the steel wire rope.

[0038] Preferably, a guide wheel 13 is also provided inside the support frame 8, located above the winding drum 7. The steel wire rope 1 led out of the rope outlet of the LTD630 hoist 4 is wound onto the winding drum 7 after passing through the guide wheel 13, ensuring that the steel wire rope 1 maintains the correct path and tension during winding, reducing friction and wear.

[0039] It is worth mentioning that the control electrical box 3 is also installed on the shell of the LTD630 hoist 4, and the control electrical box 3 is electrically connected with the tension sensor 11 and the LTD630 hoist 4. The control electrical box 3 has a programmable logic controller PLC for working with the tension sensor 11 and the LTD630 hoist 4.

[0040] As a supplement, the first end of the steel wire rope 1 is suspended on the reserved hanging point of the building or structure through the first U-shaped shackle 2. The end of the tension sensor 11 away from the hanging plate 10 is connected with the material to be lifted through the second U-shaped shackle 12.

[0041] Next, the working principle of a self-climbing material lifting device according to an embodiment of the present application is described.

[0042] The self-climbing material lifting device realizes the lifting of the material through the LTD630 hoist driving the steel wire rope, one end of the steel wire rope is fixed to the building reserved hanging point, the other end is wound on the rope winding disc connected with the driving shaft of the hoist; the rotating shaft in the support frame and the coupling ensure the effective transmission of power, and the rope winding disc is axially movable on the rotating shaft but not radially movable through the key connection, so as to adapt to the requirements in different working conditions. The compression spring between the rope winding disc and the hoist and the cooperation of the friction plate on the other side provide the necessary braking torque, ensure the uniformity of the winding and unwinding speed, and the guide wheel and the guide rope spring ensure the smooth winding of the steel wire rope and reduce the wear. In addition, the plate ring type tension sensor at the end of the hanging plate monitors the load weight in real time, and feeds back the data to the PLC controller in the control electric box, prevents overloading, and ensures the safety and accuracy of the operation, and provides a safe, efficient and reliable material lifting solution.

[0043] In the embodiments disclosed in the present application, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense. For example, "connecting" can be fixed connection, detachable connection or integral connection; "connecting" can be direct connection or indirect connection through an intermediate medium. For ordinary skilled in the art, the specific meaning of the above terms in the embodiments disclosed in the present application can be understood according to the specific circumstances.

[0044] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, some improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A self-climbing material hoisting device comprising an LTD630 hoist (4), characterized in that, The self-climbing material lifting device further comprises: a steel wire rope (1) having a first end suspended on a reserved hanging point of a building or structure and a second end introduced from a wire inlet of the LTD630 lifting machine (4); a support frame (8) installed on one side of the LTD630 lifting machine (4) and having a rotating shaft (14) rotatably connected inside the support frame (8), a first end of the rotating shaft (14) connected to a central transmission shaft of a wire winding drum inside the LTD630 lifting machine (4) through a coupling (5), and a second end of the rotating shaft (14) rotatably connected to the support frame (8) through a bearing (15); a wire winding drum (7) movably sleeved on the rotating shaft (14) through key connection, so that the wire winding drum (7) can axially move on the rotating shaft (14), and the steel wire rope (1) introduced from a wire outlet of the LTD630 lifting machine (4) is wound on the wire winding drum (7); and a hanging plate (10) having a first end installed at a bottom hanging point position of the LTD630 lifting machine (4) and a second end hingedly connected with a tension sensor (11), one end of the tension sensor (11) away from the hanging plate (10) being used for connecting a material to be lifted, and the tension sensor (11) being capable of monitoring the weight of the lifted material to avoid overload use.

2. The self-climbing material hoisting device according to claim 1, characterized in that The coupling (5) has a compression spring (6) movably sleeved on an outer periphery of the coupling (5), a first end of the compression spring (6) abutting against a first side of the wire winding drum (7), and a second end of the compression spring (6) abutting against an outer shell of the LTD630 lifting machine (4); the rotating shaft (14) further has a nut (16) threadedly connected thereon, the nut (16) being located on a side of the bearing (15) close to the wire winding drum (7), and the rotating shaft (14) further movably sleeving a disc spring (17) and a friction plate (18), a first end of the disc spring (17) abutting against the nut (16), a second end of the disc spring (17) abutting against a first end of the friction plate (18), and a second end of the friction plate (18) abutting against a second side of the wire winding drum (7).

3. The self-climbing material hoisting device according to claim 1, characterized in that The wire outlet of the LTD630 lifting machine (4) has a wire guide spring (9) for playing a transition role for the steel wire rope (1).

4. The self-climbing material hoisting device according to claim 1, characterized in that The tension sensor (11) is a plate ring type tension sensor.

5. The self-climbing material hoisting device according to claim 1, characterized in that The coupling (5) is a plum blossom type coupling.

6. The self-climbing material hoisting device according to claim 1, characterized in that The support frame (8) further has a guide wheel (13) located above the wire winding drum (7), and the steel wire rope (1) introduced from the wire outlet of the LTD630 lifting machine (4) is wound on the wire winding drum (7) through the guide wheel (13).

7. The self-climbing material hoisting device according to claim 1, characterized in that The outer shell of the LTD630 lifting machine (4) further has a control electric box (3) electrically connected with the tension sensor (11) and the LTD630 lifting machine (4).

8. The self- climbing material hoisting device according to claim 1, characterized in that The first end of the steel wire rope (1) is suspended on the reserved hanging point of the building or structure through a first U-shaped shackle (2).

9. The self-climbing material hoisting device according to claim 1, characterized in that One end of the tension sensor (11) away from the hanging plate (10) is connected with the material to be lifted through a second U-shaped shackle (12).

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