Center cable wire rope winding structure for crane

Abstract

The application belongs to the field of deep well rescue hoist and relates to a center through cable steel wire rope winding structure for hoist, which comprises a winding drum, a bearing seat, a support shaft and a slip ring encoder integrated device; the bearing seat is arranged inside the winding drum, the support shaft and the slip ring encoder integrated device are respectively arranged on the two sides of the bearing seat; a winding drum side plate is arranged on the side of the winding drum, a winding drum side plate hole is arranged in the winding drum side plate, a reinforcing rib is arranged inside the winding drum, a process hole is arranged in the reinforcing rib, a center hole is arranged in the support shaft and the bearing seat, and a cable is embedded in the center of the steel wire rope; the steel wire rope head is pulled out through the winding drum side plate hole, wound back to the inside of the winding drum through the process hole, pulled out through the center hole of the support shaft and connected with the slip ring encoder integrated device. Through the improvement of the winding drum steel wire rope fixing mode, the cable in the center of the steel wire rope is pulled out from the winding drum support shaft, which meets the requirements of deep well rescue and the requirements of communication in the whole rescue process underground and on the ground.

Description

Technical Field

[0001] This invention relates to the field of deep well rescue cranes, and more particularly to a central cable wire rope winding structure for cranes. Background Technology

[0002] With the rapid development of the national economy, my country's demand for mineral resources has increased significantly, prompting the continuous expansion of underground mineral resource mining into deeper layers. As mining depths continue to increase, deep-well rescue has become a major concern. Currently, my country uses single-rope winding hoists and multi-rope friction hoists for deep-well hoisting. Due to the large size of these hoists, a hoist room needs to be constructed and fixed at the mine entrance for transporting personnel and materials.

[0003] When a mine shaft collapses or becomes blocked, it is necessary to re-drill holes above the trapped personnel to carry out rescue operations. Mobile deep well rescue cranes are vehicles specifically designed for emergency rescue. As an important auxiliary rescue tool, they can arrive at the scene as soon as possible after a disaster and begin rescue operations, thereby minimizing the loss of life and property caused by the disaster.

[0004] Mobile cranes are mainly used for vertical transportation of materials or personnel. The wire rope is reversed by a fixed pulley at the head of the main boom. The hoisting mechanism drum can rotate in both clockwise and counterclockwise directions to release and retract the wire rope, thereby lifting and lowering the load.

[0005] Mobile cranes use a wedge-shaped structure for wire rope fixing. This involves pre-drilling wedge holes in the drum during manufacturing, then placing one end of the wire rope around the wedge and securing it in the wedge hole. In this method, the wire rope end is inside the drum. The hoisting mechanism's wire rope also uses a wedge-shaped structure for fixing; in this case, the wire rope end is inside the drum, preventing the pre-embedded cable from being routed out. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention provides a central cable wire rope winding structure for cranes, in which a cable is pre-embedded in the center of the wire rope. By improving the fixing method of the drum wire rope, the cable in the center of the wire rope is led out from the drum support shaft, which not only meets the needs of deep well rescue but also meets the needs of underground and surface communication throughout the rescue process.

[0007] The technical solution provided by this invention is as follows:

[0008] A crane center-guided wire rope winding structure includes a drum, a bearing housing, a support shaft, and a slip ring encoder integrated device. The bearing housing is located inside the drum, and the support shaft and slip ring encoder integrated device are respectively located on both sides of the bearing housing. A drum side plate is provided on the side of the drum, and a drum side plate hole is provided in the drum side plate. A reinforcing rib is provided inside the drum, and a process hole is provided inside the reinforcing rib. A center hole is provided inside the support shaft and the bearing housing. A cable is pre-embedded in the center of the wire rope. The wire rope end passes through the drum side plate hole, winds back into the drum through the process hole, passes through the center hole of the support shaft, and is led out to connect with the slip ring encoder integrated device.

[0009] Furthermore, the cable is wound through the process hole to the inside of the center hole of the support shaft, and then passes through the center hole of the support shaft and the center hole of the bearing seat in sequence, and is connected to the slip ring encoder integrated device.

[0010] Furthermore, the slip ring encoder integrated device includes a slip ring and an encoder; the slip ring includes a slip ring rotor and a slip ring stator, and a wire harness is provided inside the slip ring stator. The cable transmits the signal through the wire harness on the rotor and stator of the slip ring.

[0011] Furthermore, the encoder includes an encoder rotor and an encoder stator. The encoder rotor is provided with a flat key. The encoder rotor is connected to the slip ring and the central shaft of the encoder integrated device through the flat key. The encoder signal is transmitted through a wiring harness.

[0012] Furthermore, the process holes are evenly arranged around the axis of the reinforcing rib, and there are 6 to 10 process holes.

[0013] Furthermore, a fixing device is provided on the outside of the drum for fixing the wire rope.

[0014] Furthermore, the fixing device is welded to the outside of the drum.

[0015] Furthermore, the fixing device is provided with a U-shaped channel steel and a channel pressure plate, the U-shaped channel steel is fixed with bolts, and the channel pressure plate is a single-sided arc-shaped channel pressure plate.

[0016] Furthermore, a radial hole is provided on the upper side of the support shaft, through which the wire rope passes after exiting the drum and connects to an external device.

[0017] The present invention also provides a crane, including the above-described crane center cable wire rope winding structure.

[0018] Beneficial effects

[0019] This invention solves the problem of wire rope end wrapping, allowing the pre-embedded cable inside the wire rope to be led out from the rope end. The central cable of the wire rope passes through the hole in the drum side plate, then winds back into the drum through the drum process hole, passes through the central hole of the support shaft, and connects to the slip ring and the three-turn protection integrated device, meeting the needs of underground and surface voice and video communication throughout the entire rescue process. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the central through-cable steel wire rope of the crane in Example 1;

[0021] Figure 2 This is an enlarged view of the cable exit point;

[0022] Figure 3 This is a schematic diagram of the roll structure;

[0023] Figure 4 and Figure 5 Cross-sectional view of the reinforcing rib;

[0024] Figure 6 Diagram showing the fixing of the wire rope end;

[0025] Figure 7 For slip ring encoder integrated device;

[0026] Figure 8 This is a schematic diagram of the structure for the central cable wire rope winding of the crane in Example 2.

[0027] 1-Drum; 2-Cable; 3-Reinforcing rib; 4-Fixing device; 5-Bearing seat; 6-Slip ring encoder integrated device; 7-Process hole; 8-Wire rope; 9-Drum side plate hole; 10-Support shaft; 11-Slip ring; 12-Encoder; 14-Wire harness; 15-Flat key; 16-Central shaft of slip ring encoder integrated device; 17-Radial hole of support shaft; 41-Bolt; 42-U-channel steel; 43-Slot pressure plate. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the invention without inventive effort are within the scope of protection of the invention.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0033] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0034] Example 1

[0035] A crane center-driven wire rope winding structure includes a drum 1, a bearing housing 5, a support shaft 10, and a slip ring encoder integrated device 6. The bearing housing 5 is disposed inside the drum 1, and the support shaft 10 and the slip ring encoder integrated device 6 are respectively disposed on both sides of the bearing housing 5. A fixing device 4 is disposed on the outer side of the drum 1. A drum side plate is disposed on the side of the drum 1, and a drum side plate hole 9 is disposed in the drum side plate. A reinforcing rib 3 is disposed inside the drum 1, and a process hole 7 is disposed inside the reinforcing rib 3. The process holes 7 are evenly arranged around the axis of the reinforcing rib 3, and there are 6 to 10 process holes 7. A center hole is disposed inside the support shaft 10 and the bearing housing 5, and the bearing housing 5 is connected to the slip ring encoder integrated device 6. A cable 2 is pre-embedded in the center of the wire rope 8.

[0036] A cable 2 is pre-embedded in the center of the wire rope 8. The end of the wire rope 8 passes through the hole 9 on the side plate of the drum and is fixed to the fixing device 4 on the outside of the drum 1. The fixing device 4 is welded to the outside of the drum 1 and is equipped with a U-shaped channel steel 42 and a groove pressure plate 43. Bolts 41 are fixed on the U-shaped channel steel 42. The groove pressure plate 43 is a single-sided arc-shaped groove pressure plate used to fix the wire rope 8. The pre-embedded cable 2 in the center of the wire rope 8 is wound into the support shaft 10 through the process hole 7 of the reinforcing rib 3 inside the drum 1. The cable 2 passes through the center hole of the support shaft 10 and the center hole of the bearing seat 5, and connects to the slip ring encoder integrated device 6. A cable 2 is then led out from the center hole of the support shaft 10 and enters the slip ring encoder integrated device 6. The slip ring encoder integrated device 6 includes a slip ring 11 and an encoder 12. The slip ring 11 includes a slip ring rotor and a slip ring stator. A wire harness 14 is installed inside the slip ring stator. The cable 2 transmits signals through the rotor and the wire harness 14 on the stator of the slip ring 11. The encoder 12 includes an encoder rotor and an encoder stator. The encoder rotor is equipped with a key 15. The rotor of the encoder 12 is connected to the central shaft 16 of the slip ring and encoder integrated device through the key 15. The signal from the encoder 12 is transmitted through the wire harness 14. This allows voice and video signals from inside the rescue cabin to be transmitted to the rescue vehicle via the cable inside the steel wire rope, enabling ground rescue personnel to monitor the situation inside the rescue cabin in real time.

[0037] The center cable of the wire rope passes through the hole in the side plate of the drum, then winds back into the drum through the process hole of the drum, passes through the center hole of the support shaft and is led out to connect with the slip ring encoder integrated device 6, so as to meet the needs of underground and surface communication throughout the rescue process.

[0038] Example 2

[0039] The upper side of the support shaft 10 is provided with a support shaft radial hole 17; after the steel wire rope center cable passes through the drum, it passes through the support shaft radial hole 17 and connects to the external device.

[0040] Definitions of abbreviations and key terms

[0041] 1. Deep Well Rescue Crane: A mobile crane used for emergency rescue in deep well accidents, enabling trapped personnel to return to the surface quickly, stably, and safely.

[0042] 2. Lifting mechanism: It consists of a lifting reducer, drum, wire rope, motor, control device, and brake. It is used to release and retract the wire rope to realize the vertical movement of the suspended load.

[0043] 3. Center-through steel wire rope: The steel wire rope is made by winding steel wires into strands, and then winding the strands into a rope; a cable for transmitting information and current is pre-embedded in the steel wire rope.

Claims

1. A center-through steel wire rope winding structure for a crane, characterized in that, The device includes a drum, bearing housing, support shaft, and slip ring encoder integrated device. The bearing housing is located inside the drum, and the support shaft and slip ring encoder integrated device are respectively located on both sides of the bearing housing. A drum side plate is provided on the side of the drum, and a drum side plate hole is provided in the drum side plate. A reinforcing rib is provided inside the drum, and a process hole is provided inside the reinforcing rib. A center hole is provided inside the support shaft and the bearing housing. A cable is pre-embedded in the center of the wire rope. The end of the wire rope passes through the hole in the drum side plate, winds back into the drum through the process hole in the drum, passes through the center hole of the support shaft, and is led out to connect with the slip ring encoder integrated device. The cable is wound through the process hole to the inside of the center hole of the support shaft, and then passes through the center hole of the support shaft and the center hole of the bearing seat in sequence to connect with the slip ring encoder integrated device; or the upper side of the support shaft is provided with a radial hole, and after the wire rope passes out of the drum, it passes through the radial hole of the support shaft to connect with the external device.

2. The crane center cable wire rope winding structure according to claim 1, characterized in that, The slip ring encoder integrated device includes a slip ring and an encoder; the slip ring includes a slip ring rotor and a slip ring stator, and a wire harness is provided inside the slip ring stator. The cable transmits the signal through the wire harness on the rotor and stator of the slip ring.

3. The crane center cable winding structure according to claim 1, characterized in that, The encoder includes an encoder rotor and an encoder stator. The encoder rotor is provided with a flat key. The encoder rotor is connected to the slip ring and the central shaft of the encoder integrated device through the flat key. The encoder signal is transmitted through a wiring harness.

4. The crane center cable wire rope winding structure according to claim 1, characterized in that, The process holes are evenly arranged around the axis of the reinforcing rib, and there are 6 to 10 process holes.

5. The crane center cable wire rope winding structure according to claim 1, characterized in that, A fixing device is provided on the outside of the drum for fixing the wire rope.

6. The crane center cable wire rope winding structure according to claim 5, characterized in that, The fixing device is welded to the outside of the drum.

7. The crane center cable wire rope winding structure according to claim 5, characterized in that, The fixing device is provided with a U-shaped channel steel and a channel pressure plate. Bolts are fixed on the U-shaped channel steel, and the channel pressure plate is a single-sided arc-shaped channel pressure plate.

8. A crane, characterized in that, Includes the crane center cable wire rope winding structure as described in any one of claims 1 to 7.

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