Electric single-beam crane for casting workshop

Abstract

The utility model discloses an electric single-beam crane in a casting workshop, which comprises a main beam, end beams are fixedly connected to the left end and the right end of the main beam respectively, an electric hoist is slidably connected to the bottom end of the main beam, and the electric single-beam crane further comprises an anti-collision mechanism; the anti-collision mechanism comprises grooves, first shock absorbers, first springs and sliding blocks, the grooves are formed in the front ends and the rear ends of the end beams correspondingly, the first shock absorbers are fixedly connected to the inner walls of the sides, close to the center of the main beam, of the grooves correspondingly, and the sliding blocks are slidably connected to the interiors of the grooves correspondingly. On the basis of original functions of the crane, the buffering and damping device is added, so that most impact force can be absorbed and dissipated, acting force transmitted to structural components such as a main beam, an end beam and wheels is effectively reduced, the probability of fatigue cracks and deformation of the components is reduced, and the overall service life of the crane is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of single-girder crane technology, specifically an electric single-girder crane for a foundry workshop. Background Technology

[0002] A single-girder crane is a common type of lifting equipment, mainly composed of a main girder, an electric hoist, a trolley traveling mechanism, and an electrical control system. It is widely used in various industrial fields and warehouses to complete the lifting and unloading of heavy objects. Foundry workshops are usually large spaces with complex equipment and production line layouts. Electric single-girder cranes can be installed on the top of the workshop to utilize the upper space for lifting operations without occupying ground space or interfering with other equipment and production operations in the workshop.

[0003] Existing electric single-girder cranes use sensors installed on the crane's beam or other critical components. These sensors detect the impact force or contact signal between external obstacles and the crane to trigger alarms or automatic stop mechanisms to avoid further collisions and damage. However, existing single-girder cranes can only stop working via the controller after a collision and cannot buffer the impact force. The impact force still causes varying degrees of damage to the crane. Therefore, we propose an electric single-girder crane for foundry workshops. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the existing defects and provide an electric single-girder crane for a foundry. Based on the original functions of the crane, a buffer and shock absorption device is added, which can absorb and dissipate most of the impact force, effectively reduce the force transmitted to structural components such as the main beam, end beam, and wheels, reduce the probability of fatigue cracks and deformation in these components, and extend the overall service life of the crane. This can effectively solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electric single-girder crane for a foundry workshop, comprising a main beam, end beams fixedly connected to the left and right ends of the main beam, an electric hoist slidably connected to the bottom end of the main beam, and an anti-collision mechanism;

[0006] Anti-collision mechanism: It includes a groove, a first shock absorber, a spring, and a slider. Grooves are respectively opened at the front and rear ends of the end beam. The first shock absorber is fixedly connected to the inner wall of the groove near the center of the main beam. The slider is slidably connected inside the groove. The telescopic ends of the first shock absorber are fixedly connected to the side of the slider located inside the same groove near the center of the main beam. The first spring is movably sleeved on the outside of the first shock absorber. The first spring is located between the inner wall of the groove near the center of the main beam and the side of the slider near the center of the main beam. Based on the original function of the crane, a buffer and shock absorption device is added, which can absorb and dissipate most of the impact force, effectively reduce the force transmitted to the main beam, end beam, wheels and other structural components, reduce the probability of fatigue cracks and deformation of these components, and extend the overall service life of the crane.

[0007] Furthermore, a microcontroller is installed on the outside of the main beam. The input terminal of the microcontroller is electrically connected to an external power source, and the input terminal of the electric hoist is electrically connected to the output terminal of the microcontroller, providing electrical connections for all electrical components.

[0008] Furthermore, the anti-collision mechanism also includes a wedge block, a groove, a sliding plate, and a second shock absorber. The top of the slider is fixedly connected to a wedge block, and the upper surface of the wedge block is provided with a guide groove. The left and right inner walls of the guide groove are provided with grooves. A sliding plate is slidably connected between two grooves located inside the same wedge block. The top wall of the groove is fixedly connected to a second shock absorber. The bottom of the telescopic end of the second shock absorber is fixedly connected to the upper surface of the sliding plate located inside the same groove to absorb residual impact force.

[0009] Furthermore, the anti-collision mechanism also includes a second spring, which is movably sleeved on the outside of the second shock absorber. The second spring is located between the top wall of the groove and the upper surface of the slide plate, providing secondary additional cushioning.

[0010] Furthermore, pressure sensors are fixedly connected to the side of the slider away from the center of the main beam. The pressure sensors are bidirectionally electrically connected to the microcontroller, which facilitates the microcontroller to stop the operation of each electrical component in a timely manner.

[0011] Furthermore, a slide rail is provided at the bottom end of the main beam, and an electric hoist is slidably connected to the inner wall of the slide rail to achieve stable hoisting of heavy objects.

[0012] Furthermore, rollers are rotatably connected inside the end beams, and motors are fixedly connected to the side of the end beams closest to the center of the main beam. The output shafts of the motors are fixedly connected to the rollers at the front end on the same side, and the input end of the motors is electrically connected to the output end of the microcontroller to realize the movement of the crane.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The electric single-girder crane in this foundry has the following advantages:

[0014] When the slider contacts the wall, the first shock absorber initially absorbs the impact force, and the first spring contracts to provide some buffering. As the slider moves closer to the main beam, the upper slide plate slides inside the groove, allowing the second shock absorber to further absorb the impact force. The second spring contracts to provide secondary additional buffering, thus protecting the crane. It can more effectively disperse and absorb impact force, significantly reducing the impact stress on key components such as the main beam, end beams, wheels, and drive shaft of the crane. This extends the service life of crane components, reduces downtime and failures caused by component damage, and improves the overall reliability of the crane. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0017] Figure 3 This is an enlarged structural diagram of point A of this utility model.

[0018] In the diagram: 1 Main beam, 2 End beam, 3 Slide rail, 4 Electric hoist, 5 Microcontroller, 6 Anti-collision mechanism, 61 Groove, 62 First shock absorber, 63 Spring 1, 64 Slider, 65 Wedge block, 66 Slide groove, 67 Slide plate, 68 Second shock absorber, 69 Spring 2, 7 Roller, 8 Motor, 9 Pressure sensor. Detailed Implementation

[0019] 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.

[0020] Please see Figure 1-3This embodiment provides a technical solution: an electric single-girder crane for a foundry workshop, including a main beam 1, end beams 2 fixedly connected to the left and right ends of the main beam 1, an electric hoist 4 slidably connected to the bottom end of the main beam 1, and an anti-collision mechanism 6. A microcontroller 5 is installed on the outside of the main beam 1, with its input terminal electrically connected to an external power source, and the input terminal of the electric hoist 4 electrically connected to the output terminal of the microcontroller 5. A slide rail 3 is provided at the bottom end of the main beam 1, and the electric hoist 4 is slidably connected to the inner wall of the slide rail 3. The connection method between the slide rail 3 and the electric hoist 4 is a commonly used method in existing crane technology. The end beams 2 are respectively rotated inside... The end beam 2 is connected to the roller 7. The end beam 2 is fixedly connected to the side of the main beam 1 near the center. The output shaft of the motor 8 is fixedly connected to the roller 7 at the front end on the same side. The input end of the motor 8 is electrically connected to the output end of the microcontroller 5. When a single beam crane is needed to move heavy objects in the foundry, the electric hoist 4 starts to run through the control of the microcontroller 5. The electric hoist 4 slides inside the slide rail 3 on the main beam 1 to the top of the heavy object. The cable is lowered to lift the heavy object. The microcontroller 5 controls the motor 8 to start running. The output shaft will drive the corresponding roller 7 to rotate, so that the heavy object is lifted to a suitable location.

[0021] Anti-collision mechanism 6: It includes a groove 61, a first shock absorber 62, a spring 63, and a slider 64. Grooves 61 are respectively opened at the front and rear ends of the end beam 2. The first shock absorber 62 is fixedly connected to the inner wall of the groove 61 near the center of the main beam 1. The slider 64 is slidably connected inside the groove 61. The telescopic ends of the first shock absorber 62 are fixedly connected to the side of the slider 64 located inside the same groove 61 near the center of the main beam 1. The spring 63 is movably sleeved on the outside of the first shock absorber 62. The spring 63 is located on the inner wall of the groove 61 near the center of the main beam 1 and the slider 64 near the center of the main beam 1. Between one side, the anti-collision mechanism 6 also includes a wedge block 65, a groove 66, a sliding plate 67, and a second shock absorber 68. The top of the slider 64 is fixedly connected to the wedge block 65. The upper surface of the wedge block 65 is provided with a guide groove. The left and right inner walls of the guide groove are provided with grooves 66. The sliding plate 67 is slidably connected between the two grooves 66 located inside the same wedge block 65. The top wall of the groove 61 is fixedly connected to the second shock absorber 68. The bottom of the telescopic end of the second shock absorber 68 is fixedly connected to the upper surface of the sliding plate 67 located inside the same groove 61. The anti-collision mechanism 6 also includes a second spring 69. Springs 69 are respectively movably sleeved on the outside of the second shock absorber 68. Both springs 69 are located between the top wall of the groove 61 and the upper surface of the slide plate 67. Pressure sensors 9 are fixedly connected to the side of the slider 64 away from the center of the main beam 1. The pressure sensors 9 are bidirectionally electrically connected to the microcontroller 5. When the end beam 2 drives the entire structure to move, if one end of the slider 64 collides with the wall, the wall will contact the pressure sensor 9 fixedly connected to the side of the slider 64 away from the center of the main beam 1. The pressure sensor 9 will transmit the monitoring data to the microcontroller 5, and the microcontroller 5 will immediately stop the operation of the controlled electrical components to prevent continuous operation of the controlled electrical components from causing lifting problems. To prevent damage to the crane, when the slider 64 comes into contact with and is pressed against the wall, the first shock absorber 62 is compressed, converting and absorbing the impact force. The spring 63 contracts, providing additional cushioning. When the slider 64 is compressed, it will drive the wedge block 65 to move backward, causing the slide plate 67 to slide inside the groove 61 towards the side closer to the main beam 1 (the upper surface of the wedge block 65 is tilted towards the side closer to the main beam 1), compressing the second shock absorber 68 fixedly connected to its top, further converting the impact force. The spring 69 contracts, providing secondary cushioning and better absorbing and dispersing the impact force, thus reducing the impact force twice to protect the crane.

[0022] The working principle of the electric single-girder crane for a foundry workshop provided by this utility model is as follows: When a single-girder crane is needed to move heavy objects in the foundry workshop, the electric hoist 4 starts to operate under the control of the microcontroller 5, causing the electric hoist 4 to slide inside the slide rail 3 on the main beam 1 to the upper end of the heavy object. The cable is lowered to lift the heavy object. The microcontroller 5 controls the motor 8 to start operating, and the output shaft drives the corresponding roller 7 to rotate, so that the heavy object is lifted to a suitable location. When the end beam 2 moves the whole, when one of the front and rear ends collides with the wall, the wall and the pressure sensor 9 fixedly connected to the side of the slider 64 away from the center of the main beam 1 come into contact. The pressure sensor 9 transmits the monitoring data to the microcontroller 5. Machine 5 will immediately stop the operation of the controlled electrical components to prevent the continuous operation of the controlled electrical components from damaging the crane. When the slider 64 comes into contact with and is squeezed against the wall, the first shock absorber 62 is compressed, converting and absorbing the impact force. Spring 63 contracts to provide additional cushioning. When the slider 64 is squeezed, it will drive the wedge block 65 to move backward, causing the slide plate 67 to slide inside the groove 61 towards the side closer to the main beam 1 (the upper surface of the wedge block 65 is tilted towards the side closer to the main beam 1), compressing the second shock absorber 68 fixedly connected to its top, further converting the impact force. Spring 69 contracts to provide secondary cushioning and can better absorb and disperse the impact force, thereby reducing the impact force twice to protect the crane.

[0023] It is worth noting that the microcontroller 5 disclosed in the above embodiments can be a PI C12F675, the motor 8 can be a Y180L-615, the pressure sensor 9 can be a TQ-716, and the electric hoist 4 can be a CD1 type crane. The microcontroller 5 controls the operation of the motor 8, the pressure sensor 9, and the electric hoist 4 using methods commonly used in the prior art.

[0024] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A casting plant electric single-beam crane, comprising a main beam (1), the left and right ends of the main beam (1) are respectively fixedly connected with end beams (2), and the bottom end of the main beam (1) is slidably connected with an electric hoist (4), characterized in that: It also includes the anti-collision mechanism (6); The anti-collision mechanism (6) comprises a groove (61), a first shock absorber (62), a spring (63) and a sliding block (64), the front and rear ends of the end beam (2) are respectively provided with the groove (61), the inner wall of the groove (61) near the center of the main beam (1) is respectively fixedly connected with the first shock absorber (62), the inner part of the groove (61) is respectively connected with the sliding block (64), the telescopic end of the first shock absorber (62) is fixedly connected with the sliding block (64) near the center of the main beam (1) in the same groove (61), and the outer part of the first shock absorber (62) is respectively movably sleeved with the spring (63), and the spring (63) is located between the inner wall of the groove (61) near the center of the main beam (1) and the side of the sliding block (64) near the center of the main beam (1).

2. A single beam electric overhead travelling crane for a foundry shop as defined in claim 1, characterized in that: The outer part of the main beam (1) is provided with a single-chip microcomputer (5), and the input end of the single-chip microcomputer (5) is electrically connected with an external power supply.

3. A single beam electric overhead travelling crane for a foundry shop as defined in claim 1, characterized in that: The anti-collision mechanism (6) further comprises a wedge block (65), a sliding groove (66), a sliding plate (67) and a second shock absorber (68), the top end of the sliding block (64) is fixedly connected with the wedge block (65), the upper surface of the wedge block (65) is provided with a guide groove, the left and right inner walls of the guide groove are provided with the sliding groove (66), the sliding plate (67) is slidably connected between the two sliding grooves (66) in the same wedge block (65), and the top wall of the groove (61) is fixedly connected with the second shock absorber (68), and the telescopic end bottom of the second shock absorber (68) is fixedly connected with the upper surface of the sliding plate (67) in the same groove (61).

4. A single beam electric crane for a foundry plant according to claim 3, characterized in that: The anti-collision mechanism (6) further comprises a spring (69), and the spring (69) is movably sleeved on the outer part of the second shock absorber (68), and the spring (69) is located between the top wall of the groove (61) and the upper surface of the sliding plate (67).

5. A single beam electric overhead travelling crane for a foundry shop as defined in claim 2, characterized in that: The side of the sliding block (64) away from the center of the main beam (1) is fixedly connected with a pressure sensor (9), and the pressure sensor (9) is bidirectionally connected with the single-chip microcomputer (5).

6. A single beam electric overhead travelling crane for a foundry shop as defined in claim 2, characterized in that: The bottom end of the main beam (1) is provided with a sliding rail (3), and the inner wall of the sliding rail (3) is slidably connected with the electric hoist (4).

7. A single beam electric overhead travelling crane for a foundry shop as defined in claim 2, characterized in that: The inner part of the end beam (2) is rotatably connected with a roller (7), and the side of the end beam (2) near the center of the main beam (1) is fixedly connected with a motor (8), and the output shaft of the motor (8) is fixedly connected with the roller (7) on the same side, and the input end of the motor (8) is electrically connected with the output end of the single-chip microcomputer (5).

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