Safety protection structure of electric single-beam crane

Abstract

The utility model discloses a safety protection structure of an electric single-beam crane, which belongs to the technical field of electric single-beam cranes and comprises a steel track, moving frames are arranged on two sides of the steel track, two pulleys are rotatably arranged in the moving frames, and scraping frames are lapped on side surfaces of the pulleys. According to the safety protection structure of the electric single-beam crane, the scraping frame, the cam, the movable rod, the connecting rod, the knocking rod, the guide rod and the through hole are arranged, and the scraping frame, the cam, the movable rod, the connecting rod, the knocking rod, the guide rod and the through hole are matched with one another; the situation that due to the fact that the pulley is jammed, the crane operates unstably, and consequently a lifted object shakes or inclines is further avoided, a scraping frame can remove dust and jammed objects attached to the surface of the pulley, and meanwhile a cam drives a knocking rod to continuously knock and vibrate the scraping frame; and impurities on the surface of the scraping frame are shaken off to keep the self-cleaning of the scraping frame, so that the running stability of the crane body is ensured.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric single-girder cranes, and particularly relates to a safety protection structure for an electric single-girder crane. Background Art

[0002] An electric single-girder crane is a common lifting device, characterized by having a single beam truss structure as the main component for supporting and transporting loads. It realizes functions such as lifting, hoisting, and lateral movement through an electric drive system. In the field of industrial manufacturing, electric single-girder cranes are commonly used for operations such as loading, unloading, and stacking to improve production efficiency. The crane can also be used for cargo handling and stacking in places such as warehouses and logistics centers to achieve efficient logistics management. Since the crane moves with the cooperation of pulleys, when there are impurities remaining on the contact surface between the pulley and the track during long-term movement, the impurities are likely to get stuck on the pulley. The jamming of the pulley will cause the operation of the crane to be unstable, which may cause the lifted object to shake or tilt, resulting in the crane being unable to work properly. Therefore, a safety protection structure for an electric single-girder crane is needed to improve the above problems. Summary of the Utility Model

[0003] In order to overcome the above defects, the utility model provides a safety protection structure for an electric single-girder crane, which solves the problems that when there are impurities remaining on the contact surface between the pulley and the track, the impurities are likely to get stuck on the pulley, and the jamming of the pulley will cause the operation of the crane to be unstable, which may cause the lifted object to shake or tilt, resulting in the crane being unable to work properly.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A safety protection structure for an electric single-girder crane, including a steel track. Moving frames are arranged on both sides of the steel track. Two pulleys are rotatably arranged in the moving frames. A scraping frame is lapped on the side of the pulley. A positioning bearing is arranged in the scraping frame. A movable rod is arranged in the positioning bearing. A cam is arranged on the side of the movable rod. A connecting rod is lapped on the side of the cam. The top end of the connecting rod is hinged with a pin shaft frame, and the pin shaft frame is connected with the scraping frame. A knocking rod is arranged on one side of the connecting rod, and the knocking rod is lapped with the scraping frame.

[0005] As a further scheme of the utility model: Two guide rods are arranged in the scraping frame, and a perforation is formed in the scraping frame.

[0006] As a further scheme of the utility model: A first turntable is arranged on the side of the pulley, and a belt is arranged on the side of the first turntable.

[0007] As a further scheme of the utility model: A second turntable is lapped on the side of the belt, and the second turntable is connected with the movable rod.

[0008] As a further solution of the utility model: the scraping frame is connected to the moving frame, and a crane body is arranged under the steel track.

[0009] As a further solution of the utility model: a spring is arranged on the other side of the connecting rod, and the other end of the spring is connected to the scraping frame.

[0010] As a further solution of the utility model:

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. For the safety protection structure of the electric single-girder crane, by setting the scraping frame, cam, movable rod, connecting rod, knocking rod, guide rod and perforation, and through the mutual cooperation of the scraping frame, cam, movable rod, connecting rod, knocking rod, guide rod and perforation, it further avoids the situation that the jamming of the pulley may cause the unstable operation of the crane and may cause the lifted object to shake or tilt. The scraping frame can remove the dust and jamming substances adhered to the surface of the pulley. At the same time, the cam drives the knocking rod to continuously knock and vibrate the scraping frame, and shakes off the impurities on the surface of the scraping frame to keep the scraping frame clean by itself, thereby ensuring the stable operation of the crane body.

[0013] 2. For the safety protection structure of the electric single-girder crane, by setting the first turntable, belt and second turntable, and through the mutual cooperation of the first turntable, belt and second turntable, the power resource of the pulley rolling can be successfully converted into the power resource for the rotation of the movable rod, so that the whole has better energy saving performance. Description of the Drawings

[0014] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0015] Figure 2 is a three-dimensional structural schematic diagram of the pulley of the utility model in a bottom view;

[0016] Figure 3 is a three-dimensional structural schematic diagram of the scraping frame of the utility model in a top view section;

[0017] In the figure: 1. Steel track; 2. Moving frame; 3. Scraping frame; 4. Pulley; 5. Crane body; 6. First turntable; 7. Belt; 8. Second turntable; 9. Perforation; 10. Knocking rod; 11. Guide rod; 12. Movable rod; 13. Positioning bearing; 14. Cam; 15. Connecting rod; 16. Pin shaft frame; 17. Spring. Detailed Embodiment

[0018] The technical solutions of this patent will be further described in detail below in conjunction with the specific embodiments.

[0019] Such as Figures 1 - 3As shown in the figure, the utility model provides a technical solution: a safety protection structure for an electric single-girder crane, which includes a steel track 1. Moving frames 2 are provided on both sides of the steel track 1. Two pulleys 4 are rotatably arranged in the moving frame 2. A scraping frame 3 is lapped on the side surface of the pulley 4. The scraping frame 3 is connected to the moving frame 2. Two positioning bearings 13 are arranged in the scraping frame 3. By setting the positioning bearings 13, the positioning bearings 13 play a role in supporting and limiting the movable rod 12, so that the movable rod 12 rotates smoothly in the positioning bearings 13. An movable rod 12 is arranged in the positioning bearings 13. A cam 14 is arranged on the side surface of the movable rod 12. By setting the movable rod 12 and the cam 14, the movable rod 12 plays a role in supporting and limiting the cam 14, so as to ensure that the cam 14 does not shake randomly during the rotation process;

[0020] A connecting rod 15 is lapped on the side surface of the cam 14. The top end of the connecting rod 15 is hinged with a pin shaft frame 16. By setting the pin shaft frame 16, the pin shaft frame 16 plays a role in supporting and limiting the connecting rod 15, so that the connecting rod 15 swings smoothly in the pin shaft frame 16. The pin shaft frame 16 is connected to the scraping frame 3. A knocking rod 10 is arranged on one side of the connecting rod 15. The knocking rod 10 is lapped with the scraping frame 3. A spring 17 is arranged on the other side of the connecting rod 15. The other end of the spring 17 is connected to the scraping frame 3. A first turntable 6 is arranged on the side surface of the pulley 4. A belt 7 is arranged on the side surface of the first turntable 6. By setting the belt 7, the belt 7 smoothly transmits the power of the first turntable 6 to the second turntable 8. The belt 7 is lapped with a second turntable 8. The second turntable 8 is connected to the movable rod 12. A crane body 5 is arranged under the steel track 1. Two guide rods 11 are arranged in the scraping frame 3. A through hole 9 is opened in the scraping frame 3. By setting the guide rods 11 and the through hole 9, the guide rods 11 can guide dust and impurities into the through hole 9, and the dust and impurities are shaken off and cleaned through the through hole 9.

[0021] The working principle of the utility model is as follows:

[0022] During use, first, during the rolling process of the pulley 4, the scraping frame 3 scrapes and cleans the dust and impurities on its surface. At the same time, the pulley 4 drives the first turntable 6 to rotate, so that the first turntable 6 drives the second turntable 8 to rotate through the belt 7. The second turntable 8 drives the movable rod 12 to rotate, so that the movable rod 12 drives the cam 14 to rotate. During the rotation of the cam 14, the connecting rod 15 is squeezed, so that the connecting rod 15 compresses the spring 17;

[0023] The connecting rod 15 drives the knocking rod 10 to separate from the scraping frame 3. When the cam 14 separates from the connecting rod 15, the spring 17, in order to restore its own shape, drives the connecting rod 15 to reset. The connecting rod 15 drives the knocking rod 10 to knock and vibrate the scraping frame 3. Along with the vibration of the scraping frame 3, the dust and impurities on the surface of the scraping frame 3 are shaken off from the through hole 9, so that the pulley 4 runs smoothly and normally.

[0024] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it 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 components. 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.

[0025] The above has made a detailed description of the preferred embodiments of this patent. However, this patent is not limited to the above embodiments, and various changes can be made without departing from the spirit of this patent within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A safety protection structure for an electric single-beam crane, comprising a steel rail (1), characterized in that: A movable frame (2) is provided on both sides of the steel track (1), two pulleys (4) are rotatably provided in the movable frame (2), a scraping frame (3) is overlapped on the side of the pulley (4), two positioning bearings (13) are provided in the scraping frame (3), a movable rod (12) is provided in the positioning bearing (13), a cam (14) is provided on the side of the movable rod (12), a connecting rod (15) is overlapped on the side of the cam (14), a pin frame (16) is hinged on the top end of the connecting rod (15), the pin frame (16) is connected to the scraping frame (3), a knocking rod (10) is provided on one side of the connecting rod (15), and the knocking rod (10) is overlapped on the scraping frame (3).

2. The safety protection structure of an electric single-beam crane according to claim 1 is characterized in that: Two guide rods (11) are arranged in the scraper frame (3), and a through hole (9) is opened in the scraper frame (3).

3. The safety protection structure of an electric single-beam crane according to claim 1 is characterized in that: A first rotating disk (6) is provided on the side of the pulley (4), and a belt (7) is provided on the side of the first rotating disk (6).

4. The safety protection structure of an electric single-beam crane according to claim 3 is characterized in that: A second rotating disk (8) is overlapped on the side of the belt (7), and the second rotating disk (8) is connected to a movable rod (12).

5. The safety protection structure of an electric single-beam crane according to claim 1 is characterized in that: The scraping frame (3) is connected to the moving frame (2), and a crane body (5) is provided under the steel track (1).

6. The safety protection structure of an electric single-beam crane according to claim 1, characterized in that: A spring (17) is provided on the other side of the connecting rod (15), and the other end of the spring (17) is connected to the scraper frame (3).

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