Fixing device for main cable of portal crane

Abstract

The utility model discloses a main cable fixing device of a portal crane. The main cable fixing device is composed of a fixed roller, a rubber cushion block, an adjusting roller, an adjusting bolt and a fixed bolt. The fixed roller is fixed on a portal crane track foundation through a fixing bolt; the adjusting roller is fixed on the fixed roller through an adjusting bolt; the rubber cushion block is mounted between the fixed roller and the adjusting roller; the adjusting bolt is used for fixing the adjusting roller, the fixed roller and the rubber cushion block; and the fixing bolts are used for fixedly mounting the fixed roller.

Description

Technical Field

[0001] The utility model relates to a main cable fixing device, in particular to a main cable fixing device for a gantry crane. Background Art

[0002] Gantry cranes are commonly seen in outdoor freight yards, material yards, and bulk cargo handling sites. They are a commonly used lifting machine. Their structure is like a portal frame, and two legs are installed under the load-bearing main beam, allowing them to move directly on the ground track. Most gantry cranes are powered by cable drums. After the main power cable is fixed on the ground, it is wound around the cable drum through a cable guide. The slip rings of the cable drum provide power for the whole machine. If the main cable is not properly fixed at the ground fixing point and is stretched for a long time, the insulation skin of the main cable is likely to be damaged at the fixing point. Moreover, when the main cable bends left and right repeatedly at the fixing point, the insulation skin of the main cable at the fixing point will be damaged, and even the core may break, resulting in the scrapping of the main cable and causing relatively large economic losses. Content of the Utility Model

[0003] The technical problem to be solved by the utility model is to solve the problem that improper fixing of the main cable of a gantry crane on the ground will cause damage to the main cable, and a main cable fixing device is provided, which can effectively protect the main cable at the ground fixing point.

[0004] To solve this technical problem, the utility model provides a main cable fixing device for a gantry crane, specifically as follows:

[0005] A main cable fixing device for a gantry crane is composed of a fixed roller, a rubber cushion block, an adjusting roller, an adjusting bolt, and a fixing bolt. The fixed roller is fixed on the gantry crane track foundation through the fixing bolt. A rubber cushion block is installed on each of the fixed roller and the adjusting roller. After the fixed roller and the adjusting roller are connected together through the adjusting bolt, two holes for the main cable to pass through are formed between the two rubber cushion blocks, and the size of the holes is adjusted by the adjusting bolt.

[0006] As a further technical solution, the fixed roller is composed of a roller one and an L-shaped fixing plate. There is one roller one and two L-shaped fixing plates. The two L-shaped fixing plates are welded to both ends of the roller one. The width of the L-shaped fixing plate is slightly larger than the outer diameter of the roller one.

[0007] As a further technical solution, the roller one is made of a circular steel pipe, and its diameter is selected according to the multiple of the cable bending radius. Two bolt holes are opened at the corresponding positions for fixing the adjusting roller.

[0008] As a further technical solution, a water leakage hole is opened at the bottom position of the roller one for draining accumulated water.

[0009] As a further technical solution, a circular hole is opened on the vertical surface of the L-shaped fixing plate for a hand to reach into the first roller to fasten the adjusting bolt, and two bolt fixing holes are opened on the horizontal surface of the L-shaped fixing plate.

[0010] As a further technical solution, there are two rubber cushion blocks. Arc-shaped depressions are provided on both sides of each rubber cushion block. The radius of the arc-shaped depression on one side matches the fixed roller or the adjusting roller, and the two arc-shaped depressions on the other side are used to match the outer diameter of the main cable.

[0011] As a further technical solution, chamfers are provided at the edges of the rubber cushion blocks.

[0012] As a further technical solution, the adjusting roller is composed of a second roller and baffles. There is one second roller and two baffles. The two baffles are welded to both ends of the second roller; the diameter of the baffle is slightly larger than the outer diameter of the second roller.

[0013] As a further technical solution, the second roller is made of a circular steel pipe with the same diameter as the first roller, and two bolt holes are opened at corresponding positions. The bolt holes match the bolt holes on the first roller.

[0014] As a further technical solution, a water leakage hole is opened at the bottom of the second roller for draining accumulated water; and the length of the second roller is slightly shorter than that of the first roller to ensure that the baffles on both sides of the adjusting roller do not interfere with the L-shaped fixing plates on both sides of the fixed roller.

[0015] As a further technical solution, a circular hole is opened at the center position of the baffle for a hand to reach into the second roller to fasten the adjusting bolt.

[0016] The beneficial effects of the present utility model are as follows:

[0017] A main cable fixing device for a gantry crane proposed by the present utility model has a simple structural form, is convenient to manufacture and install, effectively solves the problem of fixing the main cable of the gantry crane at the ground fixing point, effectively protects the main cable; and the distance between the two rubber cushion blocks can be adjusted left and right through the adjusting bolt, so as to match main cables of various specifications, and has strong applicability.

[0018] In order to drain the accumulated water that may be generated in the fixed cylinder and the adjusting cylinder, the present utility model also opens water leakage holes at the middle positions of the cylinder walls of the fixed cylinder and the adjusting cylinder for draining the accumulated water that may be generated. Description of the Drawings

[0019] Figure 1 is the general assembly drawing of the present utility model;

[0020] Figure 2 is the structural drawing of the fixed roller of the present utility model;

[0021] Figure 3 Structural diagram of the adjusting roller of the present utility model;

[0022] Figure 4 Style diagram of the rubber cushion block of the present utility model;

[0023] Figure 5 Side view of the installation of the present utility model;

[0024] Figure 6 Application installation diagram of the present utility model;

[0025] In the figure: 1 fixed roller, 2 rubber cushion block, 3 adjusting roller, 4 adjusting bolt, 5 fixing bolt, 6 roller one, 7 L-shaped fixing plate, 8 roller two, 9 baffle. Specific implementation manner

[0026] It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in the present invention have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

[0027] It should be noted that the terms used herein are only for describing specific implementation manners and are not intended to limit the exemplary implementation manners according to the present invention. As used herein, unless the present invention clearly states otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof;

[0028] The specific implementation manners of the present utility model will be described in detail below in conjunction with the accompanying drawings.

[0029] Figure 1 General assembly drawing of the present utility model; A main cable fixing device for a gantry crane proposed in this embodiment is composed of a fixed roller 1, a rubber cushion block 2, an adjusting roller 3, an adjusting bolt 4, and a fixing bolt 5; the fixed roller 1 is fixed on the gantry crane track foundation through the fixing bolt 5; the adjusting roller 3 is fixed on the fixed roller 1 with the adjusting bolt 4; two rubber cushion blocks 2 are respectively fixed on the fixed roller 1 and the adjusting roller 3, and two holes for the main cable to pass through are formed between the two rubber cushion blocks 2, and the size of the holes is adjusted by the adjusting bolt 4; the rubber cushion block 2 is arranged on the barrel walls of the fixed roller 1 and the adjusting roller 3; the adjusting bolt 4 is used to fix the adjusting roller 3, the fixed roller 1 and the rubber cushion block 2, and the gap between the two rubber cushion blocks 2 can be adjusted through the adjusting bolt 4; the fixing bolt 5 is used to fixedly install the fixed roller 1.

[0030] Specifically, the main cable is passed upward between the two rubber pads 2, wound around the fixed drum 1 for one circle, then passed out between the two rubber pads 2, and then the main cable is clamped between the two rubber pads 2 by two adjusting bolts 4. The structure of the main cable fixing device of the gantry crane proposed by the present invention is simple in form, convenient to manufacture and install, effectively solves the problem of fixing the main cable at the ground fixing point of the gantry crane, effectively protects the main cable, can be adjusted left and right, matches main cables of various specifications, and has strong applicability.

[0031] Figure 2 The structure diagram of the fixed drum of the utility model is as follows; as Figure 2 shown, the fixed drum 1 is composed of a drum one 6 and L-shaped fixing plates 7. There is one drum one 6 and two L-shaped fixing plates 7. The two L-shaped fixing plates 7 are welded to both ends of the drum one 6. The widths of the two L-shaped fixing plates 7 are greater than the diameter of the drum one 6, and the extra edges are used to block the main cable and prevent it from slipping out of the drum one 6. Further, one of the rubber pads 2 is fixed on the barrel wall of the drum one 6.

[0032] Specifically, considering outdoor use, a water leakage hole is opened in the middle position of the barrel wall of the drum one 6 for draining possible accumulated water. A slightly larger round hole is opened on the vertical surfaces of the two L-shaped fixing plates 7 for reaching into the drum one 6 by hand to tighten the adjusting bolt 4. Two round holes are opened on the horizontal surfaces of the two L-shaped fixing plates 7 respectively, and the fixed drum 1 is fixed on the track foundation by fixing bolts 5.

[0033] Figure 3 The structure diagram of the adjusting drum of the utility model is as follows; as Figure 3 shown, the adjusting drum 3 is composed of a drum two 8 and baffles 9. There is one drum two 8 and two baffles 9. The two baffles 9 are welded to both ends of the drum two 8. The outer diameter of the baffle 9 is greater than the diameter of the drum two 8, and the extra edges are used to block the main cable and prevent it from slipping out of the drum two 8. Further, one of the rubber pads 2 is fixed on the barrel wall of the drum two 8, and the setting position of this rubber pad 2 corresponds to the setting position of the other rubber pad 2. After the two are combined, two holes for the main cable to pass through are formed.

[0034] Specifically, considering outdoor use, a water leakage hole is opened in the middle position of the barrel wall of the drum two 8 for draining possible accumulated water. A slightly larger round hole is opened at the center position of the two baffles 9 for reaching into the drum two 8 by hand to tighten the adjusting bolt 4.

[0035] Specifically, after the main cable is clamped between the two rubber pads 2, in order to avoid interference between the baffles 9 on both sides of the adjusting drum 3 and the L-shaped fixing plates 7 on both sides of the fixed drum 1, the total length of the adjusting drum 3 should be less than the length of the drum one 6.

[0036] Figure 4 This is the style diagram of the rubber cushion block of the present utility model; there are two rubber cushion blocks 2, one is closely attached to the fixed roller 1, and the other is closely attached to the adjusting roller 3, and they are connected by adjusting bolts 4. By adjusting the adjusting bolts 4, the main cable is clamped between the two rubber cushion blocks 2.

[0037] Specifically, when manufacturing the rubber cushion block 2, arc-shaped depressions are provided on both sides of each rubber cushion block 2, but the shapes of the arc-shaped depressions on both sides of each rubber cushion block 2 are different, mainly because the functions of the arc-shaped depressions on both sides are different; among them, the radius of the arc-shaped depression on one side of the rubber cushion block 2 installed on the fixed roller 1 matches the roller one 6, so that it can fit perfectly with the roller one, and the two arc-shaped depressions on the other side match the outer diameter of the main cable; the radius of the arc-shaped depression on one side of the rubber cushion block 2 installed on the adjusting roller 3 matches the roller two 8, so that it can fit perfectly with the roller two 8, and the two arc-shaped depressions on the other side match the outer diameter of the main cable; after the two rubber cushion blocks 2 are combined together, exactly two holes for the main cable to pass through are formed. After the main cable passes upward through one of the holes between the two rubber cushion blocks 2, then it winds around the fixed roller 1 for one circle, and then passes upward through the other hole between the two rubber cushion blocks 2, and then the main cable is clamped between the two rubber cushion blocks 2 by two adjusting bolts 4 to realize the fixation of the main cable.

[0038] Furthermore, all the edges and corners of each rubber cushion block 2 are chamfered; two bolt holes are provided on each rubber cushion block 2 for passing the adjusting bolts 4.

[0039] Figure 5 This is the installation side view of the present utility model; Figure 6 This is the application installation diagram of the present utility model; after the present utility model is assembled, it is installed directly above the cable trough, and the two L-shaped fixing plates 7 are respectively on both sides of the cable trough and are firmly fixed with fixing bolts 5; and it is ensured that the highest point of the present utility model is lower than the fairlead under the cable reel by a certain distance to avoid interference when the fairlead passes through the present utility model.

[0040] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A main cable fixing device for a gantry crane, characterized in that: It consists of a fixed roller, a rubber pad, an adjusting roller, an adjusting bolt and a fixing bolt; the fixed roller is fixed to the gantry crane track foundation by the fixing bolts; a rubber pad is installed on each of the fixed roller and the adjusting roller, and after the fixed roller and the adjusting roller are connected together by the adjusting bolts, two holes for the main cable to pass through are formed between the two rubber pads, and the size of the holes is adjusted by the adjusting bolts.

2. The main cable fixing device for a gantry crane according to claim 1, characterized in that: The fixed roller is composed of a roller 1 and an L-shaped fixing plate. The roller 1 has one and the L-shaped fixing plates have two. The roller 1 is sandwiched between the two L-shaped fixing plates.

3. The main cable fixing device for a gantry crane as claimed in claim 2, characterized in that: A water leakage hole is opened at the bottom of the drum to drain the accumulated water.

4. The main cable fixing device for a gantry crane as claimed in claim 2, characterized in that: A circular hole is opened on the vertical surface of the L-shaped fixing plate for a hand to reach into the roller to tighten the adjusting bolt, and two bolt fixing holes are opened on the horizontal surface of the L-shaped fixing plate.

5. The main cable fixing device for a gantry crane according to claim 1, characterized in that: Arc-shaped depressions are arranged on both sides of the rubber pad, wherein the radius of the arc-shaped depression on one side matches the fixed roller or the adjusting roller, and the two arc-shaped depressions on the other side are used to match the outer diameter of the main cable.

6. The main cable fixing device for a gantry crane according to claim 1, characterized in that: The edges of the rubber pads are all chamfered.

7. The main cable fixing device for a gantry crane according to claim 1, characterized in that: The regulating roller is composed of a roller 2 and a baffle. The roller 2 has one and the baffle has two. The roller 2 is sandwiched between the two baffles.

8. The main cable fixing device for a gantry crane as claimed in claim 7, characterized in that: A water leakage hole is opened at the bottom of the second drum to drain the accumulated water, and the length of the second drum is slightly shorter than that of the first drum, ensuring that the baffles on both sides of the adjustable drum do not interfere with the L-shaped fixing plates on both sides of the fixed drum.

9. The main cable fixing device for a gantry crane as claimed in claim 7, characterized in that: A circular hole is provided at the center of the baffle plate, which is used for inserting a hand into the second roller to tighten the adjusting bolt.

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