A new type of lifting emergency mechanism

Abstract

The utility model discloses a novel hoisting emergency mechanism relates to hoisting emergency field, including main speed reducer and the sub speed reducer of main speed reducer top setting, the upper end of main speed reducer is provided with the base through mounting bolt, and the upper end of base is fixedly connected with the bottom of sub speed reducer through mounting bolt. The novel hoisting emergency mechanism, the output shaft of main speed reducer also is equipped with special sprocket, and the main driven sprocket is closely connected through high -strength chain, thereby constructs a whole transmission structure of synchronous operation, this design not only significantly reduces the space occupation of equipment in longitudinal and lateral, makes the overall layout more compact and reasonable, also greatly reduces the breakdown risk caused by complex transmission structure, when the equipment needs to overhaul and maintain, the staff can quickly locate the problem part, effectively shortens the maintenance time, improves the operability and work efficiency of equipment maintenance.

Description

Technical Field

[0001] This utility model relates to the field of lifting emergency technology, specifically a novel lifting emergency mechanism. Background Technology

[0002] The hoisting emergency mechanism is an important safety backup device in hoisting equipment. Its main function is to safely lower the hoisted load to the ground using backup manpower or an independent power source when the main hoisting power system (such as an electric motor) fails or the power supply is interrupted, thereby preventing the equipment from being suspended in the air and eliminating safety hazards.

[0003] In existing technologies, the installation locations are relatively loose during emergency lifting operations, making disassembly and replacement quite complex.

[0004] To overcome the above shortcomings, a Chinese patent (publication number CN220596841U) discloses an emergency safety device for the lifting / tilting mechanism of port lifting and unloading equipment, which relates to the field of port lifting and unloading equipment technology. It includes an emergency motor drive device, the output end of which is equipped with a first gear transmission device. The first gear transmission device is connected to a second gear transmission device via a chain. The second gear transmission device is installed on the input end of the reducer of the lifting / tilting mechanism. Compared with the prior art, it ensures power supply in emergency situations and is simple to disassemble and switch, with the characteristics of convenience, safety and efficiency.

[0005] While existing technologies can overcome the shortcomings mentioned above, other problems still exist in their operation, such as: the overall device is relatively loose and occupies a lot of space; and if a malfunction occurs, maintenance is cumbersome and can easily affect the maintenance efficiency of the staff. Utility Model Content

[0006] The purpose of this utility model is to provide a new type of lifting emergency mechanism to solve the problems mentioned in the background art, such as the overall device being relatively loose, occupying a lot of space, and the maintenance being cumbersome and easily affecting the maintenance efficiency of the staff when the mechanism malfunctions.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a novel lifting emergency mechanism, comprising a main reducer and an auxiliary reducer disposed above the main reducer. The upper end of the main reducer is provided with a base by mounting bolts, and the upper end of the base is fixedly connected to the bottom of the auxiliary reducer by mounting bolts. Both the output ends of the main reducer and the auxiliary reducer are equipped with sprockets, and the upper and lower sprockets are connected by a chain. An auxiliary temperature control mechanism is disposed inside the base.

[0008] Furthermore, the auxiliary temperature control mechanism is equipped with a drive motor, and the upper and lower ends of the drive motor are fixedly installed on the inner wall of the base, and an intake fan is fixedly installed at the output end of the drive motor.

[0009] Furthermore, air vents are provided on the upper and lower surfaces of the base, and the air vents correspond to the upper end of the main reducer and the lower end of the auxiliary reducer, respectively.

[0010] Furthermore, a cooler is fixedly installed on the inner wall of the base, and the cooling end of the cooler is located between the upper and lower air outlets.

[0011] Furthermore, a dustproof mesh is fixedly installed on the right side of the base, and the dustproof mesh is circular in shape and is arranged correspondingly to the air intake fan.

[0012] Furthermore, a positioning rod is fixedly installed at the middle of the outer side of the air intake fan, and the right side of the positioning rod passes through the dustproof mesh. A movable plate is fixedly installed at the end of the positioning rod, and the left side of the movable plate is attached to the surface of the dustproof mesh.

[0013] Furthermore, a reset spring is fixedly installed inside the movable plate, and a cleaning scraper is fixedly connected to the other end of the reset spring, with the left side of the cleaning scraper adhering to the surface of the dustproof mesh.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. A dedicated sprocket is also installed on the output shaft of the main reducer. The main and driven sprockets are tightly connected by a high-strength chain, thus forming a synchronously operating overall transmission structure. This design not only significantly reduces the space occupied by the equipment in the longitudinal and lateral directions, making the overall layout more compact and reasonable, but also greatly reduces the risk of failure caused by the complex transmission structure. When the equipment needs to be inspected and maintained, the staff can quickly locate the problem part, effectively shorten the maintenance time, and improve the operability and work efficiency of equipment maintenance. Furthermore, in terms of heat dissipation, after the specially designed airflow channel guides the cold air to fully contact the cooling end, it is diverted to the upper and lower directional air outlets, forming two independent airflows that blow onto the outer surfaces of the main reducer and the auxiliary reducer respectively. This directional active heat dissipation mechanism can promptly remove the heat generated during operation, significantly reducing the operating temperature of the core components, thereby effectively avoiding equipment overload problems caused by long-term high-load operation. By improving heat dissipation efficiency, not only is the overall working stability of the machine enhanced, but the service life of key components such as internal gears and bearings is also significantly extended.

[0015] 2. A flexible cleaning scraper is installed inside the movable plate via a reset spring mechanism. Under the continuous action of the spring, the scraper always adheres to the surface of the dustproof mesh, forming a uniform and effective contact pressure. As the intake fan continues to operate, the cleaning scraper can periodically oscillate synchronously, continuously peeling off and removing dust, fibers, and other impurities attached to the mesh surface. This self-cleaning mechanism effectively solves the problem of increased air resistance caused by the accumulation of impurities in the dustproof mesh, ensuring that the air intake channel remains unobstructed, thereby ensuring the stability of the equipment's air supply and avoiding equipment performance degradation or overheating failures caused by insufficient ventilation. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model.

[0017] Figure 2 This is a three-dimensional structural diagram of the present invention viewed from below.

[0018] Figure 3 This is a cross-sectional perspective view of the three-dimensional structure of the base of this utility model.

[0019] Figure 4 This is a top-section sectional view of the three-dimensional structure of the base of this utility model.

[0020] Figure 5 This is a side sectional view of the three-dimensional structure of the base of this utility model.

[0021] Figure 6 This utility model Figure 5 Enlarged structural diagram at point A in the middle.

[0022] In the diagram: 1. Main reducer; 2. Base; 3. Mounting bolts; 4. Auxiliary reducer; 5. Sprocket; 6. Chain; 7. Drive motor; 8. Intake fan; 9. Dustproof mesh; 10. Air outlet; 11. Cooler; 12. Positioning rod; 13. Movable plate; 14. Return spring; 15. Cleaning scraper. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example 1: As Figures 1-3The technical solution shown is a novel lifting emergency mechanism. In order to solve the problems of structural diffusion and inconvenient maintenance, it discloses: a main reducer 1 and an auxiliary reducer 4 set above the main reducer 1. The upper end of the main reducer 1 is provided with a base 2 by mounting bolts 3, and the upper end of the base 2 is fixedly connected to the bottom of the auxiliary reducer 4 by mounting bolts 3. The output ends of the main reducer 1 and the auxiliary reducer 4 are both equipped with sprockets 5, and the upper and lower sprockets 5 are connected by a chain 6.

[0025] The base 2 is installed using the existing holes on the main reducer 1 and mounting bolts 3. The auxiliary reducer 4 is then installed on the upper end of the base 2 using mounting bolts 3. A sprocket 5 is installed on the output shaft of the auxiliary reducer 4, and a sprocket 5 is also installed on the output shaft of the main reducer 1. The sprockets 5 are connected to each other by a chain 6, forming an integrated structure. This reduces the space required for installation, makes the overall structure compact, and makes maintenance easier for staff.

[0026] Example 2: Figures 1-5 The technical solution shown, based on Embodiment 1, discloses the following to address the problem of overload during prolonged use: an auxiliary temperature control mechanism is equipped with a drive motor 7, with the upper and lower ends of the drive motor 7 fixedly installed on the inner wall of the base 2, and an intake fan 8 fixedly installed at the output end of the drive motor 7. Air outlets 10 are provided on the upper and lower surfaces of the base 2, corresponding to the upper end of the main reducer 1 and the lower end of the auxiliary reducer 4, respectively. A cooler 11 is fixedly installed on the inner wall of the base 2, with the cooling end of the cooler 11 located between the upper and lower air outlets 10. A dustproof mesh 9 is fixedly installed on the right side of the base 2, and the dustproof mesh 9 is circular in shape and is correspondingly positioned to the intake fan 8.

[0027] When the lifting emergency mechanism is in use, the drive motor 7 inside the base 2 is started. The start of the drive motor 7 drives the intake fan 8 to rotate. When the intake fan 8 rotates, it can drive the air through the dustproof mesh 9. The dustproof mesh 9 initially blocks dust and impurities in the air, so that the air entering the base 2 is relatively clean. The relatively clean air comes into contact with the cooling end of the cooler 11. After contacting the cooling end, the air passes through the upper and lower air outlets 10. The air that passes through comes into contact with the main reducer 1 and the auxiliary reducer 4 respectively, so as to achieve active cooling and heat dissipation, improve the durability of the device, avoid overload of the device under long-term use, and extend the service life of internal parts.

[0028] Example 3: Figures 1-6The technical solution shown, based on Embodiment 2, discloses the following to address the problem that impurities can easily clog the air intake end due to prolonged use of the mechanism: a positioning rod 12 is fixedly installed at the middle of the outer side of the air intake fan 8, and the right side of the positioning rod 12 passes through the dustproof mesh 9. A movable plate 13 is fixedly installed at the end of the positioning rod 12, and the left side of the movable plate 13 is attached to the surface of the dustproof mesh 9. A return spring 14 is fixedly installed inside the movable plate 13, and the other end of the return spring 14 is fixedly connected to a cleaning scraper 15, and the left side of the cleaning scraper 15 is attached to the surface of the dustproof mesh 9.

[0029] When the intake fan 8 rotates to draw air, the middle of the intake fan 8 drives the positioning rod 12 to rotate. When the positioning rod 12 rotates, it can drive the movable plate 13 to rotate. When the movable plate 13 rotates, it can fit against the surface of the dustproof mesh 9. At the same time, a cleaning scraper 15 is installed inside the movable plate 13 through the return spring 14. Under the action of the return spring 14, the cleaning scraper 15 can press against the surface of the dustproof mesh 9. With the drive of the intake fan 8, it can continuously rotate and move the surface of the dustproof mesh 9, so that impurities no longer adhere to the dustproof mesh 9. This can improve the continuity of air intake and avoid insufficient air supply due to blockage.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A novel lifting emergency mechanism, comprising a main reducer (1) and an auxiliary reducer (4) disposed above the main reducer (1), characterized in that: The upper end of the main reducer (1) is provided with a base (2) by mounting bolts (3), and the upper end of the base (2) is fixedly connected to the bottom of the auxiliary reducer (4) by mounting bolts (3). The output ends of the main reducer (1) and the auxiliary reducer (4) are both equipped with sprockets (5), and the upper and lower sprockets (5) are connected by a chain (6). An auxiliary temperature control mechanism is provided inside the base (2).

2. The novel lifting emergency mechanism according to claim 1, characterized in that: The auxiliary temperature control mechanism is equipped with a drive motor (7), and the upper and lower ends of the drive motor (7) are fixedly installed on the inner wall of the base (2), and an air intake fan (8) is fixedly installed at the output end of the drive motor (7).

3. The novel lifting emergency mechanism according to claim 2, characterized in that: The upper and lower surfaces of the base (2) are provided with air outlets (10), and the air outlets (10) correspond to the upper end of the main reducer (1) and the lower end of the auxiliary reducer (4), respectively.

4. The novel lifting emergency mechanism according to claim 3, characterized in that: A cooler (11) is fixedly installed on the inner wall of the base (2), and the cooling end of the cooler (11) is located between the upper and lower air outlets (10).

5. The novel lifting emergency mechanism according to claim 4, characterized in that: A dustproof mesh (9) is fixedly installed on the right side of the base (2), and the dustproof mesh (9) is circular in shape and is correspondingly set with the air intake fan (8).

6. The novel lifting emergency mechanism according to claim 5, characterized in that: A positioning rod (12) is fixedly installed at the middle of the outer side of the air intake fan (8), and the right side of the positioning rod (12) passes through the dustproof mesh (9). A movable plate (13) is fixedly installed at the end of the positioning rod (12), and the left side of the movable plate (13) is attached to the surface of the dustproof mesh (9).

7. A novel lifting emergency mechanism according to claim 6, characterized in that: A reset spring (14) is fixedly installed inside the movable plate (13), and a cleaning scraper (15) is fixedly connected to the other end of the reset spring (14), and the left side of the cleaning scraper (15) is attached to the surface of the dustproof mesh (9).

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