A crane wire rope pulley block with an anti-derailment mechanism

Abstract

This utility model relates to the technical field of anti-derailment devices, and in particular to a crane wire rope pulley block with an anti-derailment mechanism. The pulley block includes a pulley block and at least one anti-derailment mechanism. The pulley block has at least one pulley plate, and the pulley plate has a groove for cooperating with the crane wire rope. The anti-derailment mechanism includes a bracket and a bearing rotatably connected to the bracket. Each bearing corresponds to one pulley plate, and the outer rolling surface of the bearing near the pulley plate extends into the groove of the corresponding pulley plate. A gap exists between the outer rolling surface of the bearing and the inner wall of the groove. The crane wire rope pulley block with an anti-derailment mechanism provided by this utility model, by having the bearing of the anti-derailment mechanism extend into the corresponding groove in the pulley block, can prevent the crane wire rope from derailing during crane operation vibrations, thus improving equipment safety.

Description

Technical Field

[0001] This utility model relates to the field of anti-derailment device technology, and in particular to a crane wire rope pulley block with an anti-derailment mechanism. Background Technology

[0002] Gantry cranes are the most common lifting equipment in heavy industry production. They have a lifting mechanism, a lifting beam, and a traveling mechanism. Operators control the lifting and traveling through a controller to achieve the purpose of transferring goods.

[0003] Due to varying operating habits, the wire rope may jump up and down during crane operation due to crane vibrations, making it prone to detaching from the fixed pulley blocks of the crane (i.e., wire rope derailment). If not detected in time, this can lead to risks such as wear on the fixed pulley block shaft and failure of the lifting limit switch, posing a significant safety hazard. Therefore, this application proposes a crane wire rope pulley block with an anti-detachment mechanism. Utility Model Content

[0004] To solve the above technical problems, this utility model provides a crane wire rope pulley block with an anti-derailment mechanism. By having the bearing of the anti-derailment mechanism inserted into the corresponding groove in the pulley block, the crane wire rope can be prevented from derailing when the crane is vibrating during operation, thereby improving the safety of the equipment.

[0005] The proposed solution provides a wire rope pulley block for a crane with an anti-derailment mechanism, comprising a pulley block and at least one anti-derailment mechanism. The pulley block has at least one pulley plate, and the pulley plate has a groove for cooperating with the wire rope crane. The anti-derailment mechanism includes a bracket and a bearing rotatably connected to the bracket. The bearing corresponds one-to-one with the pulley plate, and the outer rolling surface of the bearing on the side closer to the pulley plate penetrates into the groove of the corresponding pulley plate. There is a gap between the outer rolling surface of the bearing and the inner wall of the groove.

[0006] The further defined technical solution of this utility model is:

[0007] Furthermore, the pulley plate is provided with three pieces, and there are two anti-detachment mechanisms, which are symmetrically arranged on both sides of the pulley block.

[0008] Furthermore, the outer rolling surface of the bearing extends 2mm into the wheel groove.

[0009] Furthermore, the bearing is a deep groove ball bearing.

[0010] Furthermore, the bearing has an inner diameter of 20 mm and an outer diameter of 42 mm.

[0011] The beneficial effects of this utility model are: the crane wire rope pulley block with anti-derailment mechanism provided by this utility model, through the bearing of the anti-derailment mechanism being inserted into the corresponding groove in the pulley block, can prevent the crane wire rope from derailing when the crane is vibrating during operation, thereby improving the safety of the equipment. At the same time, the use of a rolling bearing to replace the original anti-derailment rod can also reduce the wear of the wire rope and extend its service life. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the crane wire rope pulley block with anti-derailment mechanism in this utility model;

[0013] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0014] Figure 3 This is a schematic diagram showing the installation positions of the anti-derailment mechanism and the crane wire rope pulley block in a specific embodiment of this utility model;

[0015] Wherein: 100, pulley block; 110, pulley plate; 111, wheel groove; 200, anti-detachment mechanism; 210, bracket; 220, bearing; 230, outer rolling surface of bearing. Detailed Implementation

[0016] This embodiment provides a crane wire rope pulley block with an anti-derailment mechanism, such as... Figure 1 As shown, the system includes a pulley block 100 and anti-derailment mechanisms 200 symmetrically arranged on both sides of the pulley block 100. The pulley block 100 has three rotatable pulley plates 110, each of which has a groove 111 for cooperating with the wire rope trolley. Each anti-derailment mechanism 200 includes a bracket 210 and three bearings 220 rotatably connected to the bracket 210, wherein the bearings 220 correspond to the pulley plates 110.

[0017] like Figure 2 As shown, the outer rolling surface 230 of the bearing 220 on the side near the pulley 110 extends 2mm into the groove 111 of the corresponding pulley 110, so that there is a gap between the outer rolling surface 230 of the bearing and the inner wall of the groove 111.

[0018] As one of the optional embodiments of this application, the bearing 220 is specifically a deep groove ball bearing with an inner diameter of 20 mm and an outer diameter of 42 mm.

[0019] like Figure 3The diagram shows the installation positions of a pulley block 100 and two anti-derailment mechanisms 200. When the pulley block 100 is used with the crane wire rope, the outer rolling surface 230 of the bearing of the anti-derailment mechanism 200 penetrates into the groove 111 of the corresponding pulley plate 110, which can effectively prevent the wire rope from derailing. Through the improvement of this device, the use of rolling bearings to replace the previous anti-derailment rod can also reduce the wear of the wire rope, improve safety and equipment service life.

[0020] In addition to the above embodiments, this utility model may have other implementation methods; all technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by this utility model.

Claims

1. A crane wire rope pulley block with an anti-derailment mechanism, characterized in that, The system includes a pulley block (100) and at least one anti-derailment mechanism (200). The pulley block (100) has at least one pulley plate (110), and the pulley plate (110) has a groove (111) for cooperating with the wire rope trolley. The anti-derailment mechanism (200) includes a bracket (210) and a bearing (220) rotatably connected to the bracket (210). The bearing (220) corresponds to the pulley plate (110) one by one, and the outer rolling surface (230) of the bearing (220) on the side of the bearing (220) near the pulley plate (110) penetrates into the groove (111) of the corresponding pulley plate (110). There is a gap between the outer rolling surface (230) of the bearing and the inner wall of the groove (111). There are three pulley plates (110) and two anti-detachment mechanisms (200), with the two anti-detachment mechanisms (200) symmetrically arranged on both sides of the pulley block (100); The outer rolling surface (230) of the bearing extends 2 mm into the wheel groove (111); The bearing (220) has an inner diameter of 20 mm and an outer diameter of 42 mm.

2. The crane wire rope pulley block according to claim 1, characterized in that, The bearing (220) is a deep groove ball bearing.

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