A cable-assisted vibration damping device for crane hoisting

Abstract

This utility model discloses a cable-assisted vibration damping device for crane hoisting, relating to the field of lifting equipment technology. It aims to solve the technical problem that current clamping limit rollers are prone to misalignment due to prolonged stress, increasing cable friction and affecting effective vibration damping. The device includes side plates, a connecting bridge, and a cable body. A hoisting frame is inserted into the upper side of the connecting bridge, and a roller is provided on the lower side of the connecting bridge. Both ends of the roller are slidably inserted into the central opening of two turntables. Guide blocks are arranged in a circular array on both sides of the roller's recess. Two side plates are provided, clamping and fitting against the sides of the connecting bridge. A rotating groove is formed in the middle of each side plate, and the turntable is rotatably mounted within the rotating groove. An inner plate is fixedly installed on the inner side of each side plate by fixing screws. This utility model has the advantages of effectively suppressing lateral vibration in multiple ways and improving the service life of the device.

Description

Technical Field

[0001] This utility model relates to the field of lifting equipment technology, and more specifically, to a cable-assisted vibration damping device for crane hoisting. Background Technology

[0002] A crane is a multi-action lifting machine that uses a hook or other lifting device to suspend heavy objects and vertically lift and horizontally move them within a certain range; it is also called a hoist. Cranes complete loading and unloading operations or equipment installation through repetitive, short work cycles. One work cycle includes lifting the object, raising the object, moving it horizontally, lowering it, unloading it, and then returning the empty crane to its original position.

[0003] Crane hoisting cables are connected to the suspended object via hooks. During hoisting and lifting, swaying occurs, causing the cable to vibrate skewed. In severe cases, this can lead to the cable derailing from the guide rollers, resulting in a safety accident. Most existing devices install limiting rollers on the outside of the guide rollers. These limiting rollers clamp and limit the cable by squeezing inwards, preventing derailment and suppressing vibration. However, this structure is prone to misalignment between the guide rollers and the limiting rollers over prolonged use, affecting the effective vibration suppression. Therefore, we propose a crane hoisting cable-assisted vibration suppression device. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide a cable-assisted vibration damping device for crane hoisting, so as to solve the technical problem that the current clamping limit roller is prone to deviation and misalignment due to long-term stress, which increases the friction of the cable and affects the effective vibration damping effect.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a cable-assisted vibration damping device for crane hoisting, comprising a side plate, a connecting bridge, and a cable body. A hoisting frame is inserted and installed on the upper side of the connecting bridge, and a roller is provided on the lower side of the connecting bridge. The two ends of the roller are slidably inserted into the middle opening of two turntables. Guide blocks are distributed in a circular array on both sides of the recess of the roller. There are two side plates, and the two side plates clamp and fit against the side of the connecting bridge. A rotating groove is opened in the middle of the side plate, and the turntable is rotatably installed in the rotating groove. An inner plate is fixedly installed on the inner side of the side plate by a fixing screw.

[0006] When this invention is in use, if the outer end of the cable body is pulling a heavy object, the roller drives the turntable to rotate. When the pulled heavy object sways at high altitude, causing the cable body to vibrate in a biased direction, the cable body drives the roller to move horizontally. The roller pushes one side of the turntable through the guide block, and the turntable squeezes the side plate, causing the corresponding side plate to move outward. The displacement of the side plate is controlled by the external pressure component and the internal pressure component, achieving elastic buffering. Through the above structural design, the device activates double effective limiting when the cable body vibrates and deviates laterally, effectively playing a role in vibration suppression and pressure resistance, avoiding safety hazards caused by the cable body deviating and falling off, and ensuring the safety of the device. The cable body is introduced through the lower end of one bias roller, then passes around the upper side of the roller, and is discharged through the outer side of another bias roller. The cable body is limited by the guide block inside the arc-shaped surface of the roller. At the same time, the compression spring of the bias component completes the connection limiting of the two side plates, realizing the movement limiting of the lower part of the side plate. Through the above structural design, the cable body is triple guided during the transmission process, effectively reducing the pressure on a single roller and ensuring the service life of the device.

[0007] Preferably, the front and rear ends of the connecting bridge are provided with storage openings on both sides, and an external pressure component is provided in the storage opening. The external pressure component consists of a spring and a telescopic rod, and the outer ends of the spring and the telescopic rod are fixed to the corresponding inner plate.

[0008] Preferably, the upper end of the connecting bridge is provided with a plug-in interface, and the hoisting frame is designed in a C-shape. The end of the hoisting frame is inserted into the plug-in interface and fixedly connected by bolts.

[0009] Preferably, the side plate has a first pressure hole and a second pressure hole on its outer side, and the first pressure holes of the two side plates are connected by an offset component, and an internal pressure component is installed in the second pressure hole.

[0010] Preferably, the internal pressure assembly consists of a spring and a bolt, with the spring sleeved on the outside of the bolt, the bolt threaded onto the side of the connecting bridge after passing through the second pressure hole, and the two ends of the spring fixed inside the second pressure hole and on the nut of the bolt, respectively.

[0011] Preferably, the biasing assembly consists of a biasing roller and a shaft. The two ends of the shaft are slidably inserted into the corresponding first pressure holes. The biasing roller is sleeved and fixed in the middle of the shaft. Both ends of the shaft are fixed with top plates. A compression spring is fixed inside the top plate, and the inner end of the compression spring is attached to the outer side of the side plate.

[0012] Preferably, the cable body passes through the outside of the deflector roller and the roller cylinder.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model designs a roller so that when the outer end of the cable body pulls a heavy object, the roller drives the turntable to rotate. When the pulled heavy object sways at high altitude, causing the cable body to vibrate in a biased direction, the cable body drives the roller to move horizontally. The roller pushes one side of the turntable through the guide block, and the turntable squeezes the side plate, causing the corresponding side plate to move outward. The displacement of the side plate is controlled by the external pressure component and the internal pressure component, achieving elastic buffering. Through the above structural design, this device can activate double effective limiting when the cable body vibrates and deviates laterally, effectively playing a role in vibration suppression and pressure resistance, avoiding safety hazards caused by the cable body deviating and falling off, and ensuring the safety of the device.

[0015] 2. This utility model also designs a biasing component. The cable body is introduced through the lower end of one biasing roller, then passes over the upper side of the roller, and is discharged through the outer side of another biasing roller. The cable body is limited by the guide block inside the arc-shaped surface of the roller. At the same time, the compression spring of the biasing component completes the connection and limitation of the two side plates, realizing the movement limitation of the lower part of the side plates. Through the above structural design, the cable body is triple guided during the transmission process, which effectively reduces the pressure on the single roller and ensures the service life of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the unfolded structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the connecting bridge structure of this utility model;

[0019] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 5 This is a schematic diagram of the linkage structure of this utility model;

[0021] Figure 6 This is a schematic diagram of the biasing component of this utility model;

[0022] Figure 7 This is a schematic diagram of the turntable structure of this utility model;

[0023] Figure 8 This is a schematic diagram of the roller structure of this utility model.

[0024] The following are the labels in the diagram: 1. Side plate; 101. Inner plate; 102. Rotating groove; 103. First pressure hole; 104. Second pressure hole; 2. Connecting bridge; 201. Storage port; 202. External pressure assembly; 203. Insertion interface; 3. Deflection assembly; 301. Deflection roller; 302. Shaft; 303. Top plate; 304. Compression spring; 4. Turntable; 5. Roller; 501. Guide block; 6. Internal pressure assembly; 7. Fixing screw; 8. Lifting frame; 9. Cable body. Detailed Implementation

[0025] like Figures 1 to 5 As shown, this utility model relates to a cable-assisted vibration damping device for crane hoisting, comprising a side plate 1, a connecting bridge 2, and a cable body 9. A hoisting frame 8 is inserted and installed on the upper side of the connecting bridge 2, and a roller 5 is provided on the lower side of the connecting bridge 2. The two ends of the roller 5 are slidably inserted into the middle opening of two turntables 4. Guide blocks 501 are distributed in a ring array on both sides of the recess of the roller 5. A receiving opening 201 is provided on both the front and rear end faces of the connecting bridge 2, and an external pressure component 202 is provided in the receiving opening 201. The external pressure component 202 is composed of a spring and a telescopic rod, and the outer ends of the spring and the telescopic rod are fixed to the corresponding inner plate 101. An insertion interface 203 is provided at the upper end of the connecting bridge 2, and the hoisting frame 8 is C-shaped. The end of the hoisting frame 8 is inserted into the... The cable body 9 is fixedly connected by bolts at the interface 203. When the cable body 9 pulls a heavy object at its outer end, the roller 5 drives the turntable 4 to rotate. When the pulled heavy object swings at high altitude, causing the cable body 9 to vibrate in a biased direction, the cable body 9 drives the roller 5 to move horizontally. The roller 5 pushes the turntable 4 on one side through the guide block 501. The turntable 4 presses the side plate 1, causing the corresponding side plate 1 to move outward. The displacement of the side plate 1 is controlled by the external pressure component 202 and the internal pressure component 6, achieving elastic buffering. Through the above structural design, the device can activate double effective limit when the cable body 9 vibrates and deviates laterally, effectively playing a role in vibration suppression and pressure resistance, avoiding the safety hazards caused by the cable body 9 deviating and falling off, and ensuring the safety of the device.

[0026] like Figures 3 to 8As shown, this utility model relates to a cable-assisted vibration damping device for crane hoisting, comprising a side plate 1, a connecting bridge 2, and a cable body 9. Two side plates 1 are provided, and the two side plates 1 clamp and fit against the side of the connecting bridge 2. A rotating groove 102 is provided in the middle of the side plate 1, and a turntable 4 is rotatably installed in the rotating groove 102. An inner plate 101 is fixedly installed on the inner side of the side plate 1 by a fixing screw 7. A first pressure hole 103 and a second pressure hole 104 are provided on the outer side of the side plate 1. The first pressure holes 103 of the two side plates 1 are connected by a biasing component 3. An inner pressure component 6 is installed in the second pressure hole 104. The inner pressure component 6 consists of a spring and a bolt, with the spring sleeved on the outside of the bolt. The bolt passes through the second pressure hole 104 and is threaded onto the side of the connecting bridge 2. The two ends of the spring are respectively fixed inside the second pressure hole 104 and on the nut of the bolt. The biasing component 3 consists of a biasing roller 301 and a shaft 302. The two ends of the shaft 302 are slidably inserted into the corresponding first pressure holes 103. The bias roller 301 is sleeved and fixed in the middle of the shaft 302. The two ends of the shaft 302 are fixed with top plates 303. A compression spring 304 is fixed inside the top plate 303, and the inner end of the compression spring 304 is attached to the outer side of the side plate 1. The cable body 9 passes through the bias roller 301 and the outer side of the roller 5. The cable body 9 is introduced through the lower end of one bias roller 301, then passes around the upper side of the roller 5, and is discharged through the outer side of another bias roller 301. The cable body 9 is limited by the guide block 501 inside the arc surface of the roller 5. At the same time, the compression spring 304 of the bias component 3 completes the connection limit of the two side plates 1, realizing the movement limit of the lower part of the side plate 1. Through the above structural design, the cable body 9 is triple guided during the transmission process, effectively reducing the pressure on the single roller and ensuring the service life of the device.

[0027] Working principle: This embodiment provides a cable-assisted vibration damping device for crane hoisting. When the cable body 9 pulls a heavy object at its outer end, the roller 5 drives the turntable 4 to rotate. When the pulled heavy object sways at high altitude, causing the cable body 9 to vibrate in a biased manner, the cable body 9 drives the roller 5 to move horizontally. The roller 5 pushes the turntable 4 on one side through the guide block 501. The turntable 4 squeezes the side plate 1, causing the corresponding side plate 1 to move outward. The displacement of the side plate 1 is controlled by the external pressure component 202 and the internal pressure component 6 to achieve elastic buffering. The cable body 9 is introduced through the lower end of the bias roller 301 on one side, then passes around the upper side of the roller 5, and is discharged through the outer side of the other bias roller 301. The cable body 9 is limited by the guide block 501 inside the arc-shaped surface of the roller 5. At the same time, the compression spring 304 of the bias component 3 completes the connection limit of the two side plates 1, realizing the movement limit of the lower part of the side plate 1.

[0028] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. A cable-assisted vibration damping device for crane hoisting, comprising a side plate (1), a connecting bridge (2), and a cable body (9), characterized in that: A hoisting frame (8) is inserted and installed on the upper side of the connecting bridge (2), and a roller (5) is provided on the lower side of the connecting bridge (2). The two ends of the roller (5) are slidably inserted into the middle opening of the two turntables (4). Guide blocks (501) are distributed in a ring array on both sides of the notch of the roller (5). There are two side plates (1), and the two side plates (1) clamp and fit the side of the connecting bridge (2). A rotating groove (102) is opened in the middle of the side plate (1), and the turntable (4) is rotatably installed in the rotating groove (102). An inner plate (101) is fixedly installed on the inner side of the side plate (1) by a fixing screw (7).

2. The cable-assisted vibration damping device for crane hoisting according to claim 1, characterized in that: The connecting bridge (2) has storage openings (201) on both the front and rear ends, and an external pressure component (202) is provided in the storage opening (201). The external pressure component (202) is composed of a spring and a telescopic rod, and the outer ends of the spring and the telescopic rod are fixed on the corresponding inner plate (101).

3. The cable-assisted vibration damping device for crane hoisting according to claim 2, characterized in that: The upper end of the connecting bridge (2) is provided with a plug-in interface (203), and the hoisting frame (8) is designed in a C-shape. The end of the hoisting frame (8) is inserted into the plug-in interface (203) and fixedly connected by bolts.

4. A cable-assisted vibration damping device for crane hoisting according to claim 3, characterized in that: The side plate (1) has a first pressure hole (103) and a second pressure hole (104) on its outer side, and the first pressure holes (103) of the two side plates (1) are connected by a biasing component (3), and an internal pressure component (6) is installed in the second pressure hole (104).

5. A cable-assisted vibration damping device for crane hoisting according to claim 4, characterized in that: The internal pressure assembly (6) consists of a spring and a bolt, with the spring sleeved on the outside of the bolt. The bolt passes through the second pressure hole (104) and is threaded onto the side of the connecting bridge (2). The two ends of the spring are respectively fixed inside the second pressure hole (104) and on the nut of the bolt.

6. A cable-assisted vibration damping device for crane hoisting according to claim 5, characterized in that: The biasing assembly (3) consists of a biasing roller (301) and a shaft (302). The two ends of the shaft (302) are slidably inserted into the corresponding first pressure hole (103). The biasing roller (301) is sleeved and fixed in the middle of the shaft (302). Both ends of the shaft (302) are fixed with a top plate (303). A compression spring (304) is fixed inside the top plate (303), and the inner end of the compression spring (304) is attached to the outer side of the side plate (1).

7. A cable-assisted vibration damping device for crane hoisting according to claim 6, characterized in that: The cable body (9) passes through the outside of the deflector roller (301) and the roller (5).

Images