Steel strand inhaul cable bundling device and rapid traction installation method

Abstract

The invention discloses a bundling device of a steel strand inhaul cable and a rapid traction installation method, belongs to the technical field of steel strand inhaul cable traction, and solves the technical problem that in an existing traction installation method, each steel strand needs to be shredded and subjected to head upsetting. The bundling device comprises a water-drop-shaped buncher, the two ends of the water-drop-shaped buncher are respectively provided with a limiting section, the limiting sections are connected with limiting rings in a sleeved mode, gaps allowing the steel strand inhaul cables to penetrate through are formed between the limiting rings and the limiting sections, the end portions of the limiting sections are provided with limiting plugs enabling the steel strand inhaul cables to abut against the limiting rings, and one limiting plug is provided with a hanging ring. The water-drop-shaped buncher is combined with the limiting ring and the limiting plug, the water-drop-shaped appearance is designed, the shape of the cross section is changed, and therefore the friction angle of the center wire is changed, the friction contact length is increased, the friction force of the center wire is increased, and the friction force provides anchoring force needed by traction of the whole steel strand inhaul cable. The step of head upsetting of the center wire and extrusion of the center wire of the steel strand are reduced, and efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel strand cable traction, and more specifically, to a steel strand cable bundling device and a rapid traction installation method. Background Art

[0002] At present, the operation mode of steel strand cable traction is: after the steel strand retains the center wire, it passes through the wire dividing plate and then uses a head-end device to fix the center wire, and the outer ring of the wire dividing plate is provided with threads, and the wire dividing plate and the center wire are installed on the inner thread of one end of the traction head. A steel strand is installed at the other end of the traction head. When traction is performed, the steel strand is first manually passed through the embedded pipe, and then the traction is completed by the wire threading machine.

[0003] The shortcomings of the current process are: 1. Each steel strand must be cut into a wire head, which is inefficient; 2. The center wire must be cut off after traction is completed, otherwise the traction head cannot be removed; 3. During traction, the bundle is first manually threaded, and then mechanical traction can be used, and the degree of mechanization is low. Summary of the invention

[0004] The technical problem to be solved by the present invention is to address the above-mentioned deficiencies in the prior art. One purpose of the present invention is to provide a steel strand cable bundling device that does not require a wire cutting pier head.

[0005] The second purpose of the present invention is to provide a method for quickly pulling and installing a steel strand cable.

[0006] In order to achieve the above-mentioned purpose one, the present invention provides a bundling device for steel strand cables, including a teardrop-shaped bundler, wherein both ends of the teardrop-shaped bundler are respectively provided with limit sections, the limit sections are sleeved with limit rings, a gap is provided between the limit rings and the limit sections for passing the steel strand cables, and the ends of the limit sections are provided with limit plugs for pressing the steel strand cables against the limit rings, wherein one of the limit plugs is provided with a lifting ring.

[0007] As a further improvement, the limiting plug is threadably connected to the limiting section.

[0008] Furthermore, the lifting ring is provided with a threaded section, and the threaded section passes through the limiting plug and is threadedly connected to the limiting section.

[0009] Furthermore, another limiting plug is inserted into the limiting section through interference fit.

[0010] Furthermore, another limiting plug is connected to the limiting section via bolts.

[0011] Furthermore, the gap is adapted to the diameter of the center wire of the steel strand cable, the center wire passes through the limiting ring, and the limiting plug presses the center wire against the limiting ring.

[0012] Furthermore, an outer wall of one end of the limiting plug close to the limiting ring is provided with a conical surface or an arc surface.

[0013] In order to achieve the above-mentioned second objective, the present invention provides a method for quickly pulling and installing a steel strand cable, comprising the following steps:

[0014] Step 1. Preliminary preparation: install a traction mechanism at one end of the embedded pipe, arrange a steel strand cable at the other end of the embedded pipe, and retain the center wire of each steel strand cable, and reserve a set length of the center wire for subsequent threading;

[0015] Step 2. Pass the center wire through the limit rings at both ends of the teardrop-shaped clustering device and cling to the outer wall of the teardrop-shaped clustering device to complete the threading;

[0016] Step 3. Install the limit plug, and make the limit plug press the center wire tightly against the limit ring;

[0017] Step 4. Connect the lifting ring to one end of the steel wire rope, connect the other end of the steel wire rope to one end of the flexible wire, and connect the other end of the flexible wire to the plastic bullet head;

[0018] Step 5. Insert the plastic bullet into the high-pressure air cannon, and the high-pressure air pump sends high-pressure air into the high-pressure air cannon through the high-pressure air pipe to provide power for the plastic bullet;

[0019] Step 6. Aim the high-pressure air cannon at the pipe opening of the embedded pipe and fire, and pull the flexible wire to one end of the embedded pipe close to the traction mechanism through the plastic bullet head;

[0020] Step 7. Remove the plastic bullet head, fix the flexible wire on the automatic wire reel, tighten the flexible wire through the automatic wire reel to pull one end of the steel wire rope through the embedded pipe;

[0021] Step 8. Remove the flexible wire, fix one end of the steel wire rope on the traction mechanism, and operate the traction mechanism to pull the steel strand cable connected to the steel wire rope to the final installation position, thereby completing the traction of the entire bundle of steel strand cables.

[0022] As a further improvement, the traction mechanism is a winch, and the flexible line is a lightweight fishing line.

[0023] Beneficial Effects

[0024] Compared with the prior art, the present invention has the following advantages:

[0025] 1. The present invention utilizes a combination of a teardrop-shaped clustering device, a limiting ring and a limiting plug, and designs a teardrop-shaped appearance to change the shape of the cross section, thereby changing the friction angle of the center wire, lengthening the friction contact length, and increasing the friction force of the center wire. The friction force provides the anchoring force required for traction of the entire bundle of steel strands, reducing the steps of center wire header and the squeezing of the center wire of the steel strand, thereby improving efficiency.

[0026] 2. During traction, the present invention utilizes a high-pressure air pump, a high-pressure air pipe, a plastic bullet head, a high-pressure air cannon, a flexible line, and an automatic take-up wheel to form a power traction device. After first pulling the lightweight flexible line, the automatic take-up wheel quickly reels the wire rope to complete the traction, and then the traction mechanism provides power to complete the traction of the entire bundle of steel stranded wire cables. The entire traction is mechanized, avoiding manual threading and improving efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the clustering device in the present invention;

[0028] Figure 2 It is a schematic diagram of the quick traction installation method in the present invention.

[0029] Among them: 1-teardrop type buncher, 2-limiting section, 3-limiting ring, 4-steel wire rope, 5-limiting plug, 6-lifting ring, 7-bolt, 8-center wire, 9-embedded pipe, 10-traction mechanism, 11-steel wire rope, 12-flexible wire, 13-plastic bullet head, 14-high-pressure air cannon, 15-high-pressure air pump, 16-high-pressure air pipe, 17-automatic take-up wheel. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the specific embodiments in the accompanying drawings.

[0031] See also Figure 1-2 A bundling device for a steel strand cable comprises a teardrop-shaped bundler 1, that is, the outer wall of the teardrop-shaped bundler 1 has a teardrop-shaped structure. Limiting sections 2 are respectively provided at both ends of the teardrop-shaped bundler 1, and the limiting sections 2 are cylindrical structures. The limiting sections 2 are sleeved with limiting rings 3, and a gap for passing the steel strand cable 4 is provided between the limiting rings 3 and the limiting sections 2. A limiting plug 5 is provided at the end of the limiting section 2 for pressing the steel strand cable 4 against the limiting ring 3, and one of the limiting plugs 5 is provided with a lifting ring 6.

[0032] In one embodiment, the limiting plug 5 is threadedly connected to the limiting section 2 .

[0033] In one embodiment, the lifting ring 6 is provided with a threaded section, which passes through the limiting plug 5 and is threadedly connected to the limiting section 2 , that is, the limiting plug 5 is directly locked on the limiting section 2 through the lifting ring 6 .

[0034] In one embodiment, another limiting plug 5 is inserted into the limiting section 2 by interference fit, and after use, the limiting plug 5 is directly pulled out for disassembly.

[0035] In one embodiment, another limiting plug 5 is connected to the limiting section 2 via a bolt 7 .

[0036] Preferably, the gap is adapted to the diameter of the center wire 8 of the steel strand cable 4 , the center wire 8 passes through the limiting ring 3 , and the limiting plug 5 presses the center wire 8 against the limiting ring 3 .

[0037] The outer wall of one end of the limiting plug 5 close to the limiting ring 3 is provided with a conical surface or an arcuate surface, through which the whole bundle of central wires 8 is expanded and pressed against the limiting ring 3.

[0038] By utilizing the combination of a teardrop-shaped clustering device 1 and a limiting ring 3 and a limiting plug 5, the teardrop-shaped appearance is designed to change the shape of the cross section, thereby changing the friction angle of the center wire 8, lengthening the friction contact length, and increasing the friction force of the center wire 8. The friction force provides the anchoring force required for traction of the entire bundle of steel strands, reducing the steps of the center wire header and the squeezing of the center wire of the steel strand, thereby improving efficiency.

[0039] A method for quickly pulling and installing a steel strand cable comprises the following steps:

[0040] Step 1. Preliminary preparation: install a traction mechanism 10 at one end of the embedded pipe 9, arrange a steel strand cable 4 at the other end of the embedded pipe 9, and retain the center wire 8 of the steel strand cable 4 one by one, and reserve a set length of the center wire 8 for subsequent threading; in this embodiment, the traction mechanism 10 is a winch;

[0041] Step 2. Pass the center wire 8 through the limit rings 2 at both ends of the teardrop-shaped clustering device 1 and then stick it to the outer wall of the teardrop-shaped clustering device 1 to complete the threading;

[0042] Step 3. Install the limit plug 5, and make the limit plug 5 press the center wire 8 against the limit ring 3;

[0043] Step 4. Connect the lifting ring 6 to one end of the steel wire rope 11, connect the other end of the steel wire rope 11 to one end of the flexible wire 12, and connect the other end of the flexible wire 12 to the plastic bullet head 13; in this embodiment, the flexible wire 12 is a lightweight fishing line;

[0044] Step 5. Insert the plastic bullet 13 into the high-pressure air cannon 14, and the high-pressure air pump 15 sends high-pressure air into the high-pressure air cannon 14 through the high-pressure air pipe 16 to provide power for the plastic bullet 13;

[0045] Step 6. Aim the high-pressure air cannon 14 at the mouth of the embedded pipe 9 and fire, and pull the flexible wire 12 to one end of the embedded pipe 9 close to the traction mechanism 10 through the plastic bullet head 13;

[0046] Step 7. Remove the plastic bullet head 13, fix the flexible wire 12 on the automatic wire reel 17, tighten the flexible wire 12 through the automatic wire reel 17 to pull one end of the wire rope 11 through the embedded pipe 9;

[0047] Step 8. Remove the flexible wire 12, fix one end of the steel wire rope 11 on the traction mechanism 10, and the traction mechanism 10 operates to pull the steel strand cable 4 connected to the steel wire rope 11 to the final installation position, thereby completing the traction of the entire bundle of steel strand cables 4.

[0048] The above are only preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the structure of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A steel strand cable bundling device, characterized in that: The invention comprises a teardrop-shaped clustering device (1), wherein both ends of the teardrop-shaped clustering device (1) are respectively provided with a limit section (2), the limit section (2) is sleeved with a limit ring (3), a gap for passing a steel strand cable (4) is provided between the limit ring (3) and the limit section (2), and a limit plug (5) for pressing the steel strand cable (4) against the limit ring (3) is provided at the end of the limit section (2), wherein one of the limit plugs (5) is provided with a lifting ring (6).

2. The steel strand cable bundling device according to claim 1, characterized in that: The limiting plug (5) is threadedly connected to the limiting section (2).

3. The steel strand cable bundling device according to claim 1, characterized in that: The lifting ring (6) is provided with a threaded section, and the threaded section passes through the limiting plug (5) and is threadedly connected to the limiting section (2).

4. The steel strand cable bundling device according to claim 1, characterized in that: Another limiting plug (5) is inserted into the limiting section (2) through interference fit.

5. The steel strand cable bundling device according to claim 1, characterized in that: Another limiting plug (5) is connected to the limiting section (2) via a bolt (7).

6. A steel strand cable bundling device according to any one of claims 1 to 5, characterized in that: The gap is adapted to the diameter of the center wire (8) of the steel strand cable (4); the center wire (8) passes through the limiting ring (3); and the limiting plug (5) presses the center wire (8) against the limiting ring (3).

7. The steel strand cable bundling device according to claim 1, characterized in that: The outer wall of one end of the limiting plug (5) close to the limiting ring (3) is provided with a conical surface or an arc surface.

8. A method for rapid traction and installation of a steel strand cable, characterized in that: The following steps are involved: Step 1. Preliminary preparation: installing a traction mechanism (10) at one end of the embedded pipe (9), arranging a steel strand cable (4) at the other end of the embedded pipe (9), and retaining a center wire (8) of each steel strand cable (4), and the center wire (8) is reserved with a set length for subsequent threading; Step 2. Pass the center wire (8) through the limiting rings (2) at both ends of the teardrop-shaped clustering device (1) and then cling to the outer wall of the teardrop-shaped clustering device (1) to complete the threading; Step 3. Install the limit plug (5), and make the limit plug (5) press the center wire (8) against the limit ring (3); Step 4. Connect the lifting ring (6) to one end of the steel wire rope (11), connect the other end of the steel wire rope (11) to one end of the flexible wire (12), and connect the other end of the flexible wire (12) to the plastic bullet head (13); Step 5. Insert the plastic bullet head (13) into the high-pressure air cannon (14), and the high-pressure air pump (15) sends high-pressure air into the high-pressure air cannon (14) through the high-pressure air pipe (16) to provide power for the plastic bullet head (13); Step 6. Aim the high-pressure air cannon (14) at the mouth of the pre-buried pipe (9) and fire, and pull the flexible wire (12) to one end of the pre-buried pipe (9) close to the traction mechanism (10) through the plastic bullet head (13); Step 7. Remove the plastic bullet head (13), fix the flexible wire (12) on the automatic wire reel (17), tighten the flexible wire (12) by the automatic wire reel (17) to pull one end of the steel wire rope (11) through the embedded pipe (9); Step eight. Remove the flexible line (12), fix one end of the steel wire rope (11) on the traction mechanism (10), and operate the traction mechanism (10) to pull the steel strand cable (4) connected to the steel wire rope (11) to the final installation position, thereby completing the traction of the entire bundle of steel strand cables (4).

9. A method for rapid traction and installation of a steel strand cable according to claim 8, characterized in that: The traction mechanism (10) is a winch, and the flexible line (12) is a light fishing line.

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