Anti-loosening rope guide for electric hoist of traveling crane reclaimer

Abstract

The utility model relates to the field of electric hoist lead looseness prevention, in particular to an anti-loose rope guide for a traveling crane reclaimer electric hoist, which comprises a rope guide, an elastic rotating and pressing device and a rope pressing wheel, the outer edge of the rope guide is provided with a rope guide hole for a lead to pass through, the outer edge of the rope guide is provided with an avoiding notch, and the elastic rotating and pressing device is arranged in the avoiding notch. The elastic rotating and pressing device is fixedly installed on the outer edge of the rope guide, the rope pressing wheel is fixedly installed on the elastic rotating and pressing device, the elastic rotating and pressing device applies elastic extrusion force towards a wire to the rope pressing wheel, and the rope pressing wheel penetrates through the avoiding notch to extrude the wire on the winding drum. The steel wire rope can be prevented from jumping upwards sometimes during unloading through elastic pressing force applied to the wire by the rope pressing wheel, so that the abrasion of the steel wire rope and the failure rate of the electric hoist are reduced, and the service life of the steel wire rope and the service life of the rope guide are prolonged.

Description

Technical Field

[0001] This utility model relates to the field of anti-loosening of electric hoist wires, specifically to an anti-loosening rope guide for electric hoists used in overhead cranes. Background Technology

[0002] As one of the most important accessories for electric hoists, the wire rope guide guides the wire rope to be neatly arranged along a specific trajectory on the drum. This effectively prevents the wire rope from becoming tangled or overlapping during operation, thereby improving the safety and stability of the electric hoist and increasing operational efficiency.

[0003] In actual production, the wire rope of an electric hoist sometimes jumps upwards during unloading, causing the neatly arranged wire rope on the drum to become tangled. This exacerbates wear between the wire rope and the drum and rope guide during subsequent operations, reduces the service life of the wire rope, and is detrimental to the safety and stability of the electric hoist. Utility Model Content

[0004] The purpose of this utility model is to provide an anti-loosening rope guide for electric hoists of overhead cranes.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A rope guide for an electric hoist of a crane is provided, comprising a rope guide, an elastic pressure device, and a rope pressing wheel. The outer edge of the rope guide has a rope guide hole for the wire to pass through, and an avoidance notch is provided on the outer edge of the rope guide. The elastic pressure device is fixedly installed on the outer edge of the rope guide, and the rope pressing wheel is fixedly installed on the elastic pressure device. The elastic pressure device applies an elastic compressive force toward the wire to the rope pressing wheel, and the rope pressing wheel passes through the avoidance notch to compress the wire on the drum.

[0007] Furthermore, the elastic pressure device includes a pressure wheel bracket, a connecting rod, and a torsion spring. The pressure wheel bracket is fixedly mounted on the rope guide. One end of the connecting rod is rotatably connected to the bracket, and the other end of the connecting rod is rotatably connected to the pressure wheel. The torsion spring is used to apply an elastic force close to the drum to the pressure wheel.

[0008] Furthermore, the connecting rod is rotatably connected to the bracket via the second hinge shaft. The torsion spring is a double torsion spring, which includes a torsion arm, two spring bodies, and two linear torsion arms. The two spring bodies are respectively connected to both ends of the torsion arm. The two spring bodies and the two linear torsion arms are arranged in a one-to-one correspondence, and one end of the linear torsion arm is connected to the other end of the spring body away from the torsion arm. The end of the linear torsion arm away from the spring body has a hook-shaped structure, which allows it to rotate freely after being connected to the pressure rope wheel bracket. The two spring bodies are sleeved on the second hinge shaft, and the torsion arm abuts against the connecting rod. A horizontal plate that abuts against the torsion arm is provided on the connecting rod.

[0009] Furthermore, the rope guide has a split structure, with symmetrical mounting holes along the split surface, and the mounting holes on both sides of the split surface are connected by bolts.

[0010] Furthermore, the rope pressing wheel is rotatably connected to the connecting rod via a hinge shaft, and a deep groove ball bearing is fixedly installed between the hinge shaft and the rope pressing wheel.

[0011] Furthermore, both the rope guide and the rope pressing wheel are made of ultra-high molecular weight polyethylene.

[0012] The beneficial effects of this utility model are as follows: An anti-loosening rope guide for an electric hoist of a crane material handling machine applies elastic clamping force to the wire rope through the pressure wheel, which can prevent the wire rope from jumping upwards during unloading, thereby reducing the wear of the wire rope and the failure rate of the electric hoist, and extending the service life of the wire rope and the rope guide. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments of this utility model will be briefly introduced below.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0015] Figure 2 This is an exploded three-dimensional structural diagram of the present invention;

[0016] In the diagram: 1. Rope guide; 2. Rope pressing wheel bracket; 3. Rope pressing wheel; 4. Connecting rod; 5. Torsion spring; 51. U-shaped torsion arm; 52. Spring body; 53. Torsion arm; 6. Hinge shaft one; 7. Hinge shaft two. Detailed Implementation

[0017] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0018] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product.

[0019] Reference Figures 1 to 2The diagram illustrates an anti-loosening rope guide for an electric hoist used in a crane-type material handling machine. It includes a rope guide 1, an elastic pressure device, and a rope pressing wheel 3. The outer edge of the rope guide 1 has a rope guide hole for the wire to pass through, and an clearance notch. The elastic pressure device is fixedly installed on the outer edge of the rope guide 1, and the rope pressing wheel 3 is fixedly installed on the elastic pressure device. The elastic pressure device applies an elastic compressive force towards the wire to the rope pressing wheel 3, which passes through the clearance notch and compresses the wire on the drum. The anti-loosening rope guide is fitted onto the outer edge of the drum and can slide along the drum's axis. When the wire is pulled out, it pushes the anti-loosening rope guide to slide horizontally along the drum. The wire passes through the rope guide hole, and the area where the wire is wound on the drum is pressed tightly against the drum by the rope pressing wheel 3, preventing the wire rope from jumping upwards during unloading.

[0020] The elastic pressure roller includes a pressure roller bracket 2, a connecting rod 4, and a torsion spring 5. The pressure roller bracket 2 is fixedly mounted on the rope guide 1. One end of the connecting rod 4 is rotatably connected to the bracket 2, and the other end of the connecting rod 4 is rotatably connected to the pressure roller 3. The torsion spring 5 applies an elastic force to the pressure roller 3, bringing it closer to the drum. By applying an elastic force to the connecting rod 4 through the torsion spring 5, the connecting rod 4 rotates along the hinge point with the torsion spring 5, allowing the connecting rod 4 to drive the pressure roller 3 closer to the drum.

[0021] Link 4 is rotatably connected to bracket 2 via hinge shaft 7. Torsion spring 5 is a double torsion spring, comprising a U-shaped torsion arm 51, two spring bodies 52, and two linear torsion arms 53. The two spring bodies 52 are connected to both ends of the U-shaped torsion arm 51, and the two spring bodies 52 and the two linear torsion arms 53 are arranged in a one-to-one correspondence. One end of each linear torsion arm 53 is connected to the other end of the spring body 52 away from the U-shaped torsion arm 51. The end of the linear torsion arm 53 away from the spring body 52 has a hook-shaped structure, allowing it to rotate freely after connecting to the pressure wheel bracket 2. The two spring bodies 52 are sleeved on hinge shaft 7. The U-shaped torsion arm 51 abuts against link 4, and a horizontal plate is provided on link 4 that abuts against the U-shaped torsion arm 51. When link 4 needs to push the pressure wheel 3 to press the conductor, the spring body 52 applies an elastic force to the U-shaped torsion arm 51, causing link 4 to be pushed downwards and rotated, thus pressing the pressure wheel 3 onto the conductor. The torsion arm 53 supports and limits the spring body 52.

[0022] The rope guide 1 has a split structure, with symmetrical mounting holes along the split surface. The mounting holes on both sides of the split surface are connected by bolts. This allows the rope guide 1 to be detached and installed on the outer edge of the drum.

[0023] The rope pressing wheel 3 is rotatably connected to the connecting rod 4 via a hinge shaft 6, and a deep groove ball bearing is fixedly installed between the hinge shaft 6 and the rope pressing wheel 3. By installing the deep groove ball bearing, the rope pressing wheel 3 can rotate more smoothly when pulled by the wire.

[0024] Both the rope guide 1 and the rope pressing wheel 3 are made of ultra-high molecular weight polyethylene. By using ultra-high molecular weight polyethylene, wear on the wire rope can be reduced.

[0025] The above are merely preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A rope guide for an electric hoist of a crane-type material handling machine, characterized in that, The device includes a rope guide (1), an elastic transformer, and a rope pressing wheel (3). The outer edge of the rope guide (1) has a rope guide hole for the wire to pass through. The outer edge of the rope guide (1) has a clearance notch. The elastic transformer is fixedly installed on the outer edge of the rope guide (1). The rope pressing wheel (3) is fixedly installed on the elastic transformer. The elastic transformer applies an elastic squeezing force toward the wire to the rope pressing wheel (3). The rope pressing wheel (3) squeezes the wire on the drum through the clearance notch.

2. The anti-loosening rope guide for an electric hoist of a crane material handling machine according to claim 1, characterized in that, The elastic pressure device includes a rope pressing wheel bracket (2), a connecting rod (4), and a torsion spring (5). The rope pressing wheel bracket (2) is fixedly installed on the rope guide (1). One end of the connecting rod (4) is rotatably connected to the bracket (2), and the other end of the connecting rod (4) is rotatably connected to the rope pressing wheel (3). The torsion spring (5) is used to apply an elastic force close to the drum to the rope pressing wheel (3).

3. The anti-loosening rope guide for an electric hoist of a crane material handling machine according to claim 1, characterized in that, The connecting rod (4) is rotatably connected to the bracket (2) through the hinge shaft (7). The torsion spring (5) is a double torsion spring. The torsion spring (5) includes a U-shaped torsion arm (51), two spring bodies (52) and two linear torsion arms (53). The two spring bodies (52) are respectively connected to the two ends of the U-shaped torsion arm (51). The two spring bodies (52) and the two linear torsion arms (53) are arranged one-to-one. One end of the linear torsion arm (53) is connected to the other end of the spring body (52) away from the U-shaped torsion arm (51). The end of the linear torsion arm (53) away from the spring body (52) has a hook structure, which is used to be able to rotate freely after being connected to the pressure rope wheel bracket (2). The two spring bodies (52) are sleeved on the hinge shaft (7). The U-shaped torsion arm (51) abuts against the connecting rod (4). A horizontal plate that abuts against the U-shaped torsion arm (51) is provided on the connecting rod (4).

4. The anti-loosening rope guide for an electric hoist of a crane material handling machine according to claim 2, characterized in that, The rope guide (1) has a split structure. The rope guide (1) has symmetrical mounting holes along the split surface. The mounting holes on both sides of the split surface are connected by bolts.

5. The anti-loosening rope guide for an electric hoist of a crane material handling machine according to claim 4, characterized in that, The rope pressing wheel (3) is rotatably connected to the connecting rod (4) via a hinge shaft (6), and a deep groove ball bearing is fixedly installed between the hinge shaft (6) and the rope pressing wheel (3).

6. The anti-loosening rope guide for an electric hoist of a crane material handling machine according to claim 2, characterized in that, The rope guide (1) and the rope pressing wheel (3) are both made of ultra-high molecular weight polyethylene.

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