Bridge sling blanking length calculation equipment

By installing a moving tube and measuring rope on the outside of the sling, combined with a driving mechanism and a locking mechanism, the problems of cumbersome calculation and insufficient accuracy of sling cutting length in the prior art are solved, and the rapid and accurate measurement of sling cutting length is realized.

CN224136512UActive Publication Date: 2026-04-17CHINA COMM SECOND PUBLIC OFFICE EAST CHINA CONSTR CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA COMM SECOND PUBLIC OFFICE EAST CHINA CONSTR CO LTD
Filing Date
2025-05-29
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

The existing method for calculating the cutting length of bridge suspension cables is cumbersome and prone to coordinate errors, resulting in insufficient cutting accuracy.

Method used

The system employs a combination of movable pipe fittings, mounting plates, crossbars, traveling wheels, a drive mechanism, and a measuring rope. It quickly measures the length of the sling through the external scale of the measuring rope and uses a locking mechanism to ensure the stability of the measuring rope.

Benefits of technology

The process of measuring sling length has been simplified, the accuracy of material cutting has been improved, the difficulty of coordinate measurement has been reduced, and the stability of the measurement process has been ensured.

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Abstract

The utility model discloses a bridge sling blanking length calculating device, and relates to the technical field of bridge sling processing, the bridge sling blanking length calculating device comprises a mobile pipe fitting and a measuring rope which are sleeved outside a sling, the inner wall of the mobile pipe fitting is fixedly provided with a plurality of groups of mounting plates which are uniformly distributed in a shaft pin manner, the number of each group of mounting plates is as follows: a cross rod is rotatably arranged between two adjacent mounting plates; the rod wall of the cross rod is fixedly sleeved with two symmetrically-arranged walking wheels, a locking mechanism is arranged on the outer wall of the movable pipe fitting, the measuring rope is arranged in the locking mechanism, and a driving walking mechanism used for driving the walking wheels to rotate is arranged on the outer wall of the movable pipe fitting. According to the utility model, equipment can be mounted outside the sling, so that the equipment can walk outside the sling, and the length of the sling can be quickly measured by means of the scales outside the measuring rope, thereby reducing the measurement difficulty of a plurality of original coordinate data and improving the blanking precision of the sling.
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Description

Technical Field

[0001] This utility model relates to the field of bridge cable processing technology, specifically to a device for calculating the cutting length of bridge cables. Background Technology

[0002] Bridge cable cutting refers to the process of precisely cutting and processing the raw materials such as steel wires and strands that make up the cables according to the bridge design drawings and construction process requirements. In order to ensure that the cable cutting length is tight, the length of the cable needs to be calculated. The traditional calculation method is to determine the coordinates of the main cable (arch rib), the coordinates of the main beam, and the cable spacing, and then use the formula on the drawings to calculate the cable length. However, the existing calculation method is relatively cumbersome and is prone to errors when determining the coordinate information of the beam and the cable, resulting in a large deviation in the overall cutting length of the cable and reducing the cutting accuracy. Utility Model Content

[0003] In view of the problems existing in the above-mentioned bridge cable cutting length calculation equipment, this utility model is proposed.

[0004] Therefore, the purpose of this utility model is to provide a bridge cable cutting length calculation device, which solves the problem that existing cable cutting calculations require determining multiple coordinate parameters, which can easily lead to calculation errors and reduce cutting accuracy.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A bridge cable cutting length calculation device includes a movable tube sleeved on the outside of the cable and a measuring rope. The inner wall of the movable tube is fixed with multiple sets of mounting plates evenly distributed with pivot pins. The number of mounting plates in each set is [number missing]. A crossbar is rotatably provided between two adjacent mounting plates. Two symmetrically arranged traveling wheels are fixedly sleeved on the wall of the crossbar. The outer wall of the movable tube is provided with a locking mechanism. The measuring rope is located inside the locking mechanism.

[0007] The outer wall of the movable pipe is provided with a driving mechanism for driving the walking wheels to rotate.

[0008] Preferably, the driving mechanism includes a drive motor, a mounting bracket is fixedly provided on the outer wall of the moving tube, the drive motor is fixedly provided on the outer wall of the mounting bracket, and the end of the output shaft passes through the mounting bracket. Synchronous pulleys are fixedly sleeved on the output shaft of the drive motor and the wall of the crossbar, and synchronous belts are provided on the outer sides of the two synchronous pulleys.

[0009] Preferably, the movable pipe includes an outer pipe and an arc-shaped plate, the arc-shaped plate and the outer pipe are hinged together, and a locking bolt is threaded between the lower sides of their adjacent ends.

[0010] Preferably, the locking mechanism includes a clamping bolt, a positioning ring is fixedly provided on the outer wall of the movable tube, the measuring rope is located inside the positioning ring, the clamping bolt is threaded on the side of the positioning ring, and its end is abutted against the measuring rope.

[0011] Furthermore, the outer wall of the measuring rope is provided with measuring scale.

[0012] Preferably, a DC power supply is fixedly provided on the outer wall of the mounting bracket, the drive motor is a DC motor and is electrically coupled with the DC power supply, and the outer wall of the moving tube is provided with a through hole for the synchronous belt to pass through.

[0013] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0014] 1. This utility model, through the provided movable pipe, mounting plate, crossbar, traveling wheel, driving mechanism and measuring rope, can install the equipment outside the sling, so that it can travel outside the sling and quickly measure the length of the sling by means of the scale on the outside of the measuring rope, which reduces the difficulty of measuring multiple coordinate data and improves the accuracy of sling cutting.

[0015] 2. This utility model, through the provided movable tube, measuring rope and locking mechanism, can stably fix the measuring rope and ensure its stability during the measurement process. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 For the present utility model Figure 1 Enlarged schematic diagram of part A;

[0019] Figure 3 This is a side view of the movable pipe fitting of this utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Moving pipe fitting; 2. Measuring rope; 3. Mounting plate; 4. Crossbar; 5. Traveling wheel; 6. Drive motor; 7. Mounting bracket; 8. Synchronous pulley; 9. Synchronous belt; 10. Outer pipe; 11. Arc plate; 12. Locking bolt; 13. Abutting bolt; 14. Positioning ring; 15. DC power supply; 16. DC motor. Detailed Implementation

[0022] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0023] This utility model discloses a device for calculating the cutting length of bridge suspension cables.

[0024] This utility model provides, for example Figure 1-3 The bridge cable cutting length calculation device shown includes a movable tube 1 and a measuring rope 2 sleeved on the outside of the cable. The outer wall of the measuring rope 2 has measuring scales. The movable tube 1 includes an outer tube 10 and an arc plate 11. The arc plate 11 and the outer tube 10 are hinged together, and a locking bolt 12 is threaded through the lower side of one end close to the other. Multiple sets of mounting plates 3 are fixedly provided on the inner wall of the movable tube 1 in a uniform distribution of axle pins. There are 2 mounting plates 3 in each set. A crossbar 4 is rotatably provided between two adjacent mounting plates 3. Two symmetrically arranged traveling wheels 5 are fixedly sleeved on the wall of the crossbar 4. The outer wall of the movable tube 1 is provided with a locking mechanism, and the measuring rope 2 is located inside the locking mechanism.

[0025] The outer wall of the movable pipe 1 is provided with a driving mechanism for driving the walking wheel 5 to rotate. The driving mechanism includes a drive motor 6. The outer wall of the movable pipe 1 is fixedly provided with a mounting bracket 7. The drive motor 6 is fixedly provided on the outer wall of the mounting bracket 7, and the end of the output shaft passes into the mounting bracket 7. The outer wall of the mounting bracket 7 is fixedly provided with a DC power supply 15. The drive motor 6 is a DC motor 16 and is electrically connected with the DC power supply 15. The outer wall of the movable pipe 1 is provided with a through hole for the synchronous belt 9 to pass through. The output shaft of the drive motor 6 and the wall of the crossbar 4 are both fixedly fitted with synchronous pulleys 8. The outer sides of the two synchronous pulleys 8 are provided with synchronous belts 9 for transmission.

[0026] In order to fix the position of measuring rope 2 and ensure stability during the sling unloading and measurement process, such as Figure 1-2 As shown, the locking mechanism includes a clamping bolt 13, a positioning ring 14 is fixedly provided on the outer wall of the movable tube 1, the measuring rope 2 is located inside the positioning ring 14, the clamping bolt 13 is threaded on the side of the positioning ring 14, and its end is abutted against the measuring rope 2.

[0027] Working principle: Before calculating the cutting length of the sling, first loosen the locking bolt 12, and put the movable tube 1, which consists of the outer tube 10 and the arc plate 11, on the outside of the sling and fix it with the locking bolt 12. This makes the traveling wheels 5 between the multiple sets of mounting plates 3 on the inner wall fit against the outer wall of the sling. Then, the DC power supply 15 supplies power to the drive motor 6. The motor output shaft drives the crossbar 4 to rotate through the synchronous wheel 8 and the synchronous belt 9, driving the traveling wheels 5 to make the movable tube 1 move at a constant speed along the axis of the sling. At the same time, the measuring rope 2 moves and unfolds with the equipment. When the movable tube 1 reaches the other end of the sling, the actual length of the sling is obtained by directly reading the measurement scale on its outer wall. Finally, the cutting length is obtained by correcting the parameters such as the anchor length and elastic elongation. Before use, the end of the measuring rope 2 is inserted into the positioning ring 14. By pressing the end of the measuring rope 2 with the end of the tightening bolt 13, the position of the measuring rope 2 can be fixed to ensure its stability when moving with the movable tube 1 and to ensure the cutting measurement accuracy.

[0028] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A bridge sling cutting length calculation device, comprising a movable tube (1) sleeved on the outside of the sling and a measuring rope (2), characterized in that, The inner wall of the movable pipe fitting (1) is fixed with multiple sets of mounting plates (3) evenly distributed in the form of axle pins. The number of mounting plates (3) in each set is 2. A crossbar (4) is rotatably provided between two adjacent mounting plates (3). Two symmetrically arranged walking wheels (5) are fixedly sleeved on the bar wall of the crossbar (4). The outer wall of the movable pipe fitting (1) is provided with a locking mechanism. The measuring rope (2) is located inside the locking mechanism. The outer wall of the movable pipe (1) is provided with a driving mechanism for driving the walking wheel (5) to rotate.

2. The bridge sling off- length calculation device of claim 1, wherein, The driving mechanism includes a drive motor (6), and a mounting bracket (7) is fixedly provided on the outer wall of the moving tube (1). The drive motor (6) is fixedly provided on the outer wall of the mounting bracket (7), and the end of the output shaft passes into the mounting bracket (7). The output shaft of the drive motor (6) and the rod wall of the crossbar (4) are both fixedly fitted with synchronous pulleys (8), and synchronous belts (9) are provided on the outer sides of the two synchronous pulleys (8).

3. The bridge sling off- length calculation device of claim 1, wherein, The movable pipe fitting (1) includes an outer pipe (10) and an arc plate (11). The arc plate (11) and the outer pipe (10) are hinged together, and a locking bolt (12) is threaded between the lower sides of their adjacent ends.

4. The bridge sling off- length calculation device of claim 1, wherein, The locking mechanism includes a clamping bolt (13), and a positioning ring (14) is fixedly provided on the outer wall of the movable tube (1). The measuring rope (2) is located inside the positioning ring (14). The clamping bolt (13) is threaded on the side of the positioning ring (14), and its end is abutted against the measuring rope (2).

5. The bridge sling off- length calculation device of claim 1, wherein, The outer wall of the measuring rope (2) is provided with measuring scale.

6. The bridge sling off- length calculation device of claim 2, wherein, The outer wall of the mounting bracket (7) is fixed with a DC power supply (15), the drive motor (6) is a DC motor (16) and is electrically connected with the DC power supply (15), and the outer wall of the moving pipe (1) is provided with a through hole for the synchronous belt (9) to pass through.