Multi-degree-of-freedom supporting rope tensioning push rod device

By designing a multi-degree-of-freedom rope tensioning push rod device, and utilizing the cooperation of a fixed support and a two-way hinge assembly, the problem of damage to existing devices during multi-directional swing is solved, achieving a compact structure that is easy to install and maintain. This device is suitable for medium and small bridge grab unloaders.

CN223804760UActive Publication Date: 2026-01-16JIANGSU GONGLI HEAVY MACHINERY
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Patent Information

Application Number
CN202520125905.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-20
Publication Date
2026-01-16
Estimated Expiration
2035-01-20

AI Technical Summary

Technical Problem

The existing bridge grab unloader's rope tensioning device is easily damaged during multi-directional swinging, and the existing electro-hydraulic actuator is difficult to maintain and costly, making it difficult to meet the needs of medium and small-sized equipment.

Method used

A multi-degree-of-freedom rope tensioning push rod device was designed, which adopts a fixed support with spaced distribution and a two-way hinge assembly. The electro-hydraulic push rod can swing left and right within the two-way hinge assembly and swing up and down within the fixed support. Combined with the square structure of the U-shaped hinge and the seat plate, the electro-hydraulic push rod can be stably installed and disassembled.

Benefits of technology

This invention achieves a compact, easy-to-install and maintain electro-hydraulic actuator, improving work efficiency and safety while reducing maintenance difficulty and cost.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a multi-degree-of-freedom supporting rope tensioning push rod device which comprises fixed supports distributed at intervals, a two-way hinge sleeve assembly is installed between the fixed supports in a supporting mode, an electric-hydraulic push rod penetrates through the middle of the two-way hinge sleeve assembly, and the electric-hydraulic push rod can swing left and right in the two-way hinge sleeve assembly. The electric-hydraulic push rod and the bidirectional hinge sleeve assembly can swing up and down in the fixed support; the bidirectional hinge sleeve assembly structurally comprises a seat plate, a U-shaped hinge sleeve is mounted on the upper portion of the seat plate through a fastener, bushings are mounted in the middle of the U-shaped hinge sleeve and the middle of the seat plate, and the two outer end faces of the U-shaped hinge sleeve abut against the fixed support through seat covers and are locked through bolts. The electric-hydraulic pusher can be conveniently mounted and dismounted, the electric-hydraulic pusher is clear in stress, direct in force transmission, safe and reliable to use, attractive in appearance and easy and convenient to operate, great convenience is brought to field mounting and maintenance, and working efficiency is greatly improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to steel wire rope tensioner technical field, especially a kind of multi-degree-of-freedom rope supporting tensioning push rod device. BACKGROUND

[0002] The bridge type grab ship unloader can run on the track, the net height under the portal can pass transport vehicles, the grab is scattered after grabbing coal from the ship, and is unloaded to the conical hopper, and is sent to the belt conveyor on the wharf through the hopper discharge port, and then is sent to the stockyard. The bridge type grab ship unloader is suitable for unloading coal from ships or unloading coal from ships at power plant wharfs, and has high speed and high efficiency.

[0003] The rope supporting trolley system in the bridge type grab ship unloader needs to be equipped with a steel wire rope tensioner to ensure that the rope supporting trolley follows in time and is accurately positioned. At present, the rope tensioner in the existing technology mainly includes a ratchet manual tensioning device, an automatic hydraulic tensioning system and an electro-hydraulic push rod tensioning device. Among them, the ratchet manual tensioning device is difficult to operate, has many safety risks, and is gradually being eliminated. Among them, the automatic hydraulic tensioning system has high cost and high maintenance difficulty, and is mainly used for large equipment. Among them, the electro-hydraulic push rod tensioning device is widely used, and has the advantages of simple structure, compact structure, small size, light weight, low cost and easy maintenance. However, the conventional electro-hydraulic push rod can only swing in two directions along the hinge shaft, and the tensioning rope swings in multiple directions, such as up and down and left and right, due to the horizontal movement of the trolley during the operation of the ship unloader, which can easily damage the electro-hydraulic push rod in the constrained direction. UTILITY MODEL CONTENTS

[0004] In view of the above-mentioned shortcomings of the existing production technology, the present application provides a multi-degree-of-freedom rope supporting tensioning push rod device with a reasonable structure, so that it has the advantages of simple structure, small size, light weight, attractive appearance and easy disassembly and maintenance.

[0005] The technical scheme adopted by the utility model is as follows:

[0006] A multi-degree-of-freedom rope supporting tensioning push rod device comprises fixed supports that are spaced apart, a bidirectional hinge sleeve assembly is installed between the fixed supports, an electro-hydraulic push rod passes through the middle part of the bidirectional hinge sleeve assembly, the electro-hydraulic push rod can swing left and right in the bidirectional hinge sleeve assembly, and the electro-hydraulic push rod and the bidirectional hinge sleeve assembly can swing up and down in the fixed supports.

[0007] The structure of the bidirectional hinge sleeve assembly comprises a seat plate, a U-shaped hinge sleeve is installed on the upper part of the seat plate through fasteners, a bushing is installed at the middle position of the U-shaped hinge sleeve and the seat plate, the two outer end faces of the U-shaped hinge sleeve are abutted against the fixed supports through seat covers, and are locked by bolts.

[0008] As a further improvement of the above technical scheme:

[0009] The U-shaped hinge sleeve adopts an integral structure.

[0010] The U-shaped hinge sleeve has a U-shaped cross section.

[0011] The U-shaped hinge sleeve is provided with vertical hinge shafts on both sides.

[0012] The U-shaped hinge sleeve and the seat plate form a square structure, and a space for mounting the electro-hydraulic push rod is formed in the middle.

[0013] The space for mounting the electro-hydraulic push rod is larger than the outer diameter of the electro-hydraulic push rod.

[0014] The seat plate has a "convex" shaped cross section.

[0015] The seat plate is provided with holes for mounting fasteners.

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

[0017] The utility model has the advantages of compact and reasonable structure, convenient operation, convenient installation and dismounting of the electro-hydraulic push rod through the cooperation of the electro-hydraulic push rod, the fixed support and the bidirectional hinge sleeve assembly, clear stress, direct force transmission, safe and reliable use, beautiful appearance, simple operation, great convenience for on-site installation and maintenance, and greatly improved work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a front view of the utility model.

[0019] Figure 2 It is a top view of the utility model.

[0020] Figure 3 It is Figure 1 It is a full sectional view along section A-A.

[0021] Figure 4 It is a front view of the bidirectional hinge sleeve assembly of the utility model.

[0022] Figure 5 It is a sectional view of the bidirectional hinge sleeve assembly of the utility model.

[0023] Figure 6 It is a side view of the bidirectional hinge sleeve assembly of the utility model.

[0024] Figure 7 It is a structural schematic view of the U-shaped hinge sleeve of the utility model.

[0025] Among them: 1, electro-hydraulic push rod; 2, fixed support; 3, bidirectional hinge sleeve assembly;

[0026] 301, U-shaped hinge sleeve; 302, bushing; 304, bolt; 305, seat cover; 306, seat plate. DETAILED DESCRIPTION

[0027] The specific implementation of the present application will be described below in combination with the drawings.

[0028] As shown in the drawings, Figures 1-7 The multi-degree-of-freedom rope tensioning push rod device of the present embodiment comprises fixed supports 2 distributed at intervals, a bidirectional hinge sleeve assembly 3 is supported and installed between the fixed supports 2, an electro-hydraulic push rod 1 passes through the middle part of the bidirectional hinge sleeve assembly 3, the electro-hydraulic push rod 1 can swing left and right in the bidirectional hinge sleeve assembly 3, and the electro-hydraulic push rod 1 and the bidirectional hinge sleeve assembly 3 can swing up and down in the fixed supports 2.

[0029] The structure of the bidirectional hinge sleeve assembly 3 comprises a seat plate 306, a U-shaped hinge sleeve 301 is installed on the upper part of the seat plate 306 through fasteners, a bushing 302 is installed at the middle position of the U-shaped hinge sleeve 301 and the seat plate 306, and the two outer end faces of the U-shaped hinge sleeve 301 are abutted against the fixed supports 2 through seat covers 305 and locked through bolts 304.

[0030] The U-shaped hinge sleeve 301 adopts an integral structure, which is convenient to install and manufacture and also convenient to disassemble.

[0031] The cross section of the U-shaped hinge sleeve 301 is in a U-shaped structure, which is good in stability.

[0032] The U-shaped hinge sleeve 301 is provided with vertical hinge shafts on both sides.

[0033] The U-shaped hinge sleeve 301 and the seat plate 306 form a quadrangular structure and form a space for installing the electro-hydraulic push rod 1 in the middle part.

[0034] The space for installing the electro-hydraulic push rod 1 is greater than the outer diameter of the electro-hydraulic push rod 1.

[0035] The cross section of the seat plate 306 is in a "convex" character structure, which is good in matching degree, adopts concave-convex inlaying, does not move, guarantees and can guarantee the reliability of installation.

[0036] Holes for installing fasteners are opened on the seat plate 306, which is convenient for disassembly and assembly.

[0037] In actual working process, the quadrangular structure space surrounded by the U-shaped hinge sleeve 301 and the seat plate 306 is large, the electro-hydraulic push rod 1 is convenient to install, the electro-hydraulic push rod 1 can be very conveniently sleeved in the bidirectional hinge sleeve assembly 3 and has space to swing; when disassembly is needed, only the fasteners on the seat plate 306 are loosened and the seat plate 306 is removed, which brings great convenience to on-site installation and maintenance and greatly improves work efficiency.

[0038] The above description is an explanation of the present application, not a limitation of the present application, the scope defined by the present application is referred to the claims, and any form of modification within the protection scope of the present application can be made.

Claims

1. A multi-degree of freedom rope tensioning pushrod device, characterized by: The application relates to a two-way hinged sleeve assembly, which comprises interval fixed supports (2) supporting two-way hinged sleeve assemblies (3) installed thereon, a middle part of the two-way hinged sleeve assembly (3) penetrating an electro-hydraulic push rod (1), the electro-hydraulic push rod (1) being capable of swinging left and right in the two-way hinged sleeve assembly (3), and the electro-hydraulic push rod (1) and the two-way hinged sleeve assembly (3) being capable of swinging up and down in the fixed support (2). The two-way hinged sleeve assembly (3) comprises a seat plate (306), a U-shaped hinged sleeve (301) being installed on the seat plate (306) through fasteners, a bushing (302) being installed on the middle part of the U-shaped hinged sleeve (301) and the seat plate (306), and the two outer end faces of the U-shaped hinged sleeve (301) being abutted against the fixed support (2) through seat covers (305) and locked through bolts (304).

2. The multi-degree of freedom cable tensioning pushrod apparatus of claim 1, wherein: The U-shaped hinged sleeve (301) adopts an integrated structure.

3. The multi-degree of freedom cable tensioning pushrod apparatus of claim 1, wherein: The cross section of the U-shaped hinged sleeve (301) is in a U-shaped structure.

4. The multi-degree of freedom cable tensioning pushrod apparatus of claim 1, wherein: The U-shaped hinged sleeve (301) is provided with vertical hinge shafts on the two sides.

5. The multi-degree of freedom cable tensioning pushrod apparatus of claim 1, wherein: The U-shaped hinged sleeve (301) and the seat plate (306) form a quadrangular structure and form a space for installing the electro-hydraulic push rod (1) in the middle part.

6. The multi-degree of freedom cable tensioning pushrod apparatus of claim 5, wherein: The space for installing the electro-hydraulic push rod (1) is larger than the outer diameter of the electro-hydraulic push rod (1).

7. The multi-degree of freedom cable tensioning push-rod apparatus of claim 1, wherein: The cross section of the seat plate (306) is in a "convex" structure.

8. The multi-degree of freedom cable tensioning push-rod apparatus of claim 1, wherein: Holes for installing fasteners are formed on the seat plate (306).