Climbing type material crane

Abstract

The utility model discloses a climbing type material crane which comprises a reduction gearbox body, the reduction gearbox body comprises a front cover and a rear cover, a first gear shaft, a second gear shaft and a third gear shaft are installed between the front cover and the rear cover, the first gear shaft is provided with a first gear set and a toothed driving disc, the second gear shaft is provided with a second gear set, and the third gear shaft is provided with a third gear set. A third gear set is arranged on the third gear shaft, the first gear set is meshed with the second gear set, the second gear set is meshed with the third gear set, and the third gear set is in meshed transmission with the toothed driving disc; the motor is fixed to one side of the reduction gearbox body, the first gear shaft is connected with the motor and provides rotating power, and a brake is arranged in the motor; the electric control system is mounted in the reduction gearbox body and comprises a control element and a handle switch; a rope inlet protection device, a rope outlet protection device and a rope pressing mechanism are arranged below the toothed driving disc, one end of the steel wire rope passes through the rope inlet protection device, the rope pressing mechanism, the toothed driving disc and the rope outlet protection device and then is freely hung, and the other end of the steel wire rope is connected with a second lifting hook.

Description

Technical Field

[0001] The utility model relates to the field of hoisting equipment, in particular to a climbing material hoist. Background Technique

[0002] During traditional building construction, simple winches and electric hoists are generally used as material lifting equipment. When in use, the length of the steel wire rope or chain is greatly limited, mainly used for building construction at lower heights. When the steel wire rope or chain is long, its external shape and volume will become very large, making transportation and installation inconvenient, and the use cost is also high. At the same time, due to the limited construction site, some hoisting equipment needs to be horizontally fixed on the ground, and some hoisting equipment needs to be suspended on the top of the building. Using a winch or an electric hoist, its fixing method is single and cannot meet complex installation requirements. Chinese Patent No. CN202558530U discloses a hoist that can lift goods, but it cannot ensure the use stability during suspension, and at the same time cannot provide high torque and has poor load capacity. Currently, material lifting equipment is increasingly difficult to meet the current construction of floors with increasing heights. There is an urgent need in the market for a device that can adapt to high floors, is convenient for installation and transportation, has a wide applicability, and has low use and maintenance costs. Content of the Utility Model

[0003] The purpose of the utility model is to provide a climbing material hoist to solve the problems of small adaptability and poor load capacity of the existing hoist.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A climbing material hoist, comprising:

[0005] A reduction gearbox body, the reduction gearbox body includes a front cover and a rear cover, a first gear shaft, a second gear shaft and a third gear shaft are installed between the front cover and the rear cover, a first gear set and a toothed drive disc are arranged on the first gear shaft, a second gear set is arranged on the second gear shaft, a third gear set is arranged on the third gear shaft, the first gear set and the second gear set are meshed, the second gear set and the third gear set are meshed, and the third gear set and the toothed drive disc are meshed and transmitted;

[0006] An electric motor, fixed on one side of the reduction gearbox body, the first gear shaft is connected to the electric motor to provide rotational power, and a brake is arranged in the electric motor;

[0007] An electric control system, installed in the reduction gearbox body, includes control elements and a handle switch for controlling the forward and reverse actions of the electric motor;

[0008] An inlet rope protection device, an outlet rope protection device and a rope pressing mechanism are arranged below the toothed drive disc, one end of a steel wire rope is freely suspended after passing through the inlet rope protection device, the rope pressing mechanism, the toothed drive disc and the outlet rope protection device, and the other end is connected with a second hook.

[0009] As a further improvement of the above technical solution:

[0010] A first hook is provided on the speed reduction box body, and the first hook is installed at the balance center of the speed reduction box body and the motor.

[0011] A handgrip is installed on the speed reduction box body.

[0012] The rope pressing mechanism includes a mounting frame, a rope guiding wheel and a rope pressing wheel are provided on the mounting frame, and a rope pressing spring is provided between the mounting frame and the rear cover.

[0013] A rope splitter is provided on the mounting frame. After the steel wire rope passes through the rope splitter, its running direction is changed and it enters the rope outlet protection device.

[0014] The rope inlet protection device and the rope outlet protection device have the same structure, and both include a return spring, a lever and a limit block; one side of the lever is connected to the control element, and the other side is connected to the limit block. The return spring abuts against the lever and does not trigger the control element under normal circumstances. The steel wire rope passes in and out of the crane through the limit block; when the limit block rotates, the lever rotates accordingly, thereby triggering the control element to act.

[0015] The bottom of the speed reduction box body is of a flat structure.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] Efficient transmission: Through the multi-stage gear transmission in the speed reduction box body, the output speed of the motor is effectively reduced, and the output torque is increased, making the crane more stable and reliable when lifting heavy objects, and improving the transmission stability and load capacity. The multi-stage reduction system is compactly arranged, has a small size and a light self-weight, and is convenient for transportation and installation and fixation.

[0018] Precise control: The handle switch and microswitch control elements in the electric control system achieve precise control of the forward and reverse rotation and stop of the motor, facilitating the operator to hoist materials under different working conditions.

[0019] Safety protection: The design of the rope inlet protection device and the rope outlet protection device effectively avoids equipment damage caused by excessive slack or excessive tension of the steel wire rope during the hoisting process, and improves the use safety.

[0020] Automatic stop function: When an object on the steel wire rope touches the control element, the movement of the motor can be immediately stopped, preventing the steel wire rope from being over-retracted or over-released, and ensuring the safety of the hoisting process.

[0021] Balanced design: The first hook is installed at the balance center of the speed reduction box body and the motor, ensuring that the crane remains balanced in the hanging state, and reducing vibration and safety hazards caused by the center of gravity deviation.

[0022] Convenient handling: The handle design on the reduction gearbox makes it more convenient to install and transport the crane.

[0023] Stable support: The flat bottom structure design of the reduction gearbox enables the crane to be stably installed on the top of the building, improving the stability of the equipment.

[0024] Good adaptability: The rope pressing mechanism is adopted to firmly connect the steel wire rope with the driving disc, and there is no storage of the steel wire rope inside, so that the whole mechanism is not restricted by the current length of the steel wire rope. Different lengths of steel wire ropes can be used to adapt to buildings of different heights, meeting the use requirements of the increasing floor heights. Description of the drawings

[0025] Figure 1 is a schematic diagram of the external structure of the climbing material hoist of the present utility model;

[0026] Figure 2 is one of the schematic diagrams of the internal structure of the climbing material hoist of the present utility model;

[0027] Figure 3 is another schematic diagram of the internal structure of the climbing material hoist of the present utility model;

[0028] Figure 4 is the third schematic diagram of the internal structure of the climbing material hoist of the present utility model;

[0029] Figure 5 is the fourth schematic diagram of the internal structure of the climbing material hoist of the present utility model;

[0030] Figure 6 is the fifth schematic diagram of the internal structure of the climbing material hoist of the present utility model.

[0031] Reference numerals: 1, reduction gearbox; 2, first hook; 3, handle; 4, electric motor; 5, electric control system; 6, rope pressing mechanism; 7, rope inlet protection device; 8, rope outlet protection device; 9, steel wire rope; 10, second hook; 101, front cover; 102, rear cover; 103, first gear shaft; 104, second gear shaft; 105, third gear shaft; 106, driving disc; 401, brake; 501, control element; 502, handle switch; 60, mounting bracket; 601, guide rope pulley; 602, rope pressing pulley; 603, rope splitter; 604, rope pressing spring; 701, return spring; 702, lever; 703, limit block. Detailed implementation manners

[0032] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with the specific implementation manners.

[0033] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0034] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0035] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0036] As Figures 1 to 6 shown, the climbing material hoist of this embodiment includes:

[0037] The reduction gearbox 1, the reduction gearbox 1 includes a front cover 101 and a rear cover 102. A first tooth shaft 103, a second tooth shaft 104, and a third tooth shaft 105 are installed between the front cover 101 and the rear cover 102. A first gear set and a toothed drive disc 106 are arranged on the first tooth shaft 103. The toothed drive disc 106 is rotatably installed on the first tooth shaft 103 through a bearing. The first gear set is fixedly arranged on the first tooth shaft 103 and rotates synchronously with the first tooth shaft 103. A second gear set is arranged on the second tooth shaft 104, and a third gear set is arranged on the third tooth shaft 105. The first gear set meshes with the second gear set, the second gear set meshes with the third gear set, and the third gear set meshes with the toothed drive disc 106 for transmission. The transmission process is that the power is transmitted from the first tooth shaft 103 to the first gear set, the first gear set transmits the power to the second gear set, the second gear set transmits the power to the third gear set, and the third gear set transmits the power to the toothed drive disc 106 to realize rope winding and unwinding.

[0038] The motor 4 is fixed to one side of the speed reduction box body 1. The first toothed shaft 103 is connected to the motor 4 to provide rotational power. A brake 401 is provided inside the motor 4. The motor 4 drives the first toothed shaft 103 to rotate as a power source, and the rope winding and unwinding control is realized by controlling the forward and reverse rotation of the motor 4.

[0039] The electric control system 5 is installed inside the speed reduction box body 1 and includes a control element 501 and a handle switch 502 for controlling the forward and reverse rotation actions of the motor 4. The control element 501 uses a micro switch. When an object on the steel wire rope 9 touches the control element 501, the control element 501 will control the motor 4 to stop moving.

[0040] An incoming rope protection device 7, an outgoing rope protection device 8 and a rope pressing mechanism 6 are arranged below the toothed drive disc 106. One end of the steel wire rope 9 is freely suspended after passing through the incoming rope protection device 7, the rope pressing mechanism 6, the toothed drive disc 106 and the outgoing rope protection device 8, and the other end is connected with a second hook 10.

[0041] A first hook 2 is arranged on the speed reduction box body 1. The first hook 2 is installed at the balance center of the speed reduction box body 1 and the motor 4. The first hook 2 is used to provide a hanging point for suspension installation. Installing at the balance center can ensure that the entire crane is in a relatively balanced state when fixed by the first hook 2. The selection of this balance center is adjusted through multiple tests. Generally

[0042] A handgrip 3 is installed on the speed reduction box body 1. During the installation and transportation of the equipment, the handgrip 3 can be used to carry the crane.

[0043] The rope pressing mechanism 6 includes an installation frame 60. A wire guiding wheel 601 and a rope pressing wheel 602 are arranged on the installation frame 60. A rope pressing spring 604 is arranged between the installation frame 60 and the rear cover 102. The setting of the rope pressing mechanism 6 is a conventional design and is not elaborated here.

[0044] A rope separator 603 is arranged on the installation frame 60. The steel wire rope 9 changes its direction after passing through the rope separator 603 and enters the outgoing rope protection device 8.

[0045] The incoming rope protection device 7 and the outgoing rope protection device 8 have the same structure, and both include a return spring 701, a lever 702 and a limit block 703. One side of the lever 702 is connected to the control element 501, and the other side is connected to the limit block 703. The return spring 701 abuts against the lever 702 and does not trigger the control element 501 under normal circumstances. The steel wire rope 9 enters and exits the crane through the limit block 703. When the limit block 703 rotates, the lever 702 rotates accordingly, thereby triggering the control element 501 to act.

[0046] The bottom of the speed reduction box body 1 is a flat structure. The flat structure can be stably attached to the installation surface to support its horizontal installation. During use, the equipment can be suspended or fixedly installed on the top of a building.

[0047] During specific operation, the power generated by the motor 4 is transmitted to the driving disc 106 successively through the first gear shaft 103, the second gear shaft 104, and the third gear shaft 105 in the reduction gearbox 1, driving it to rotate. After the steel wire rope 9 is threaded through, an included angle is formed on both sides of the wire guiding pulley 601 by the steel wire rope 9. Depending on the self-weight of the object, a pressure on the wire pressing pulley 602 is formed. At the same time, under the action of the wire pressing spring 604, the pressure is sufficient to tightly press the steel wire rope 9 in the rope groove of the driving disc 106, generating sufficient frictional force to drive the movement of the steel wire rope 9, thereby realizing the lifting of materials. The handle switch 502 is provided with buttons for controlling the forward rotation, reverse rotation, and stop of the motor 4. When the object at the lifting end of the steel wire rope 9 touches the limit block 703 of the incoming rope protection device 7, the limit block 703 rotates, driving the lever 702 to rotate and triggering the control element 501 to act, stopping the upward movement of the steel wire rope 9, that is, the forward rotation of the motor; similarly, when an object touches the outgoing rope protection device 8 at the free end of the steel wire rope 9, the control element 501 stops the reverse rotation of the motor, thus avoiding damage to the crane by the object. The brake 401 provided inside the motor 4 can stop the rotation of the motor 4 when power is cut off at any time, so that the lifted object can be stopped in the air without sliding down.

[0048] The above are only the embodiments of the present invention. Common knowledge such as the specific structures and characteristics known in the solutions is not described in detail here. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. A climbing material crane, characterized in that: include: A reduction gear box (1), the reduction gear box (1) comprising a front cover (101) and a rear cover (102), a first gear shaft (103), a second gear shaft (104) and a third gear shaft (105) being installed between the front cover (101) and the rear cover (102), a first gear shaft (103) being provided with a first gear set and a toothed drive disk (106), a second gear shaft (104) being provided with a second gear set, a third gear shaft (105) being provided with a third gear set, the first gear set being meshed with the second gear set, the second gear set being meshed with the third gear set, and the third gear set being meshed with the toothed drive disk (106) for transmission; The motor (4) is fixed to one side of the reduction gear box (1); the first gear shaft (103) is connected to the motor (4) to provide rotational power; and a brake (401) is provided inside the motor (4); An electric control system (5) is installed in the reduction gearbox (1), comprising a control element (501) and a handle switch (502), and is used to control the forward and reverse rotation of the motor (4); A rope feed protection device (7), a rope outlet protection device (8) and a rope pressing mechanism (6) are arranged below the toothed drive disk (106); one end of the steel wire rope (9) passes through the rope feed protection device (7), the rope pressing mechanism (6), the toothed drive disk (106) and the rope outlet protection device (8) and is freely suspended; the other end of the steel wire rope (9) is connected to a second hook (10).

2. The climbing material crane according to claim 1, characterized in that: The reduction gearbox (1) is provided with a first hook (2), and the first hook (2) is installed at the balance center of the reduction gearbox (1) and the motor (4).

3. The climbing material crane according to claim 1, characterized in that: A handle (3) is mounted on the reduction gearbox body (1).

4. The climbing material crane according to claim 1, characterized in that: The rope pressing mechanism (6) comprises a mounting frame (60), a rope guide wheel (601) and a rope pressing wheel (602) are arranged on the mounting frame (60), and a rope pressing spring (604) is arranged between the mounting frame (60) and the rear cover (102).

5. The climbing material crane according to claim 4, characterized in that: The mounting frame (60) is provided with a rope splitter (603), and the steel wire rope (9) changes its direction after passing through the rope splitter (603) and enters the rope outlet protection device (8).

6. The climbing material crane according to claim 1, characterized in that: The rope-in ​​protection device (7) and the rope-out protection device (8) have the same structure, and both comprise a return spring (701), a lever (702), and a limit block (703); one side of the lever (702) is connected to the control element (501), and the other side is connected to the limit block (703); the return spring (701) abuts against the lever (702), and under normal circumstances, the control element (501) is not triggered, and the wire rope (9) enters and exits the crane through the limit block (703); when the limit block (703) rotates, the lever (702) rotates accordingly, thereby triggering the control element (501) to operate.

7. The climbing material crane according to any one of claims 1 to 6, characterized in that: The bottom of the reduction gearbox body (1) is a flat structure.

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