A load bearing cable armour restoration device

Abstract

The present application relates to a kind of load-bearing cable armor recovery device, comprising: armor recovery device: including the recovery device main body with the first axial through hole for cable passing through, and several recovery device handles and several armor teeth are respectively arranged in radial direction on recovery device main body;Armor rotator: including the rotator main body with the second axial through hole for cable passing through, and several support rods are arranged in radial direction on rotator main body, and the end of support rod is also provided with armor positioning block for fixing armor wire.Compared with prior art, the present application can effectively ensure that load-bearing cable armor wire is not deformed when opening, effectively ensure that load-bearing cable armor recovery is flat and meets the requirements, improve the efficiency of load-bearing cable armor opening and recovery, and more conducive to the improvement of load-bearing cable splicing quality and the popularization and application of splicing technology.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of opening and restoring load-bearing cable armor, and relates to a load-bearing cable armor restoring device. BACKGROUND

[0002] In the process of construction operations such as petrochemical industry, oil and gas field exploration and development, marine exploration, and mine machinery, load-bearing cables are often used. The load-bearing cable has good mechanical and electrical properties and is relatively expensive. The inner and outer cable armors of the load-bearing cable are made of high-quality steel wires treated by a special process, and have good toughness and corrosion resistance. The winding directions of the inner and outer armors are opposite, which reduces the rotation and length change of the load-bearing cable under stress. The cable core is wound by multiple layers of copper wires and has water blocking agents added. The cable core of the load-bearing cable is entirely wrapped in a shielding layer. In a complex use environment, a load-bearing cable with a length of several kilometers or even tens of kilometers may have local performance degradation and failure, causing it to be unusable. The faulty section of the cable needs to be cut off and re-spliced for use. During the splicing process of the load-bearing cable, the long armor steel wires need to be opened and restored, and the armor steel wires can only be restored to be flat to meet the requirements. Otherwise, it will affect the pressure seal, length measurement, and mechanical properties during the construction process. Currently, except for the production units of load-bearing cables, only manpower and simple ordinary tools are used to open and restore the load-bearing cable armor (after inquiry: no special tool for opening and restoring the load-bearing cable armor has been reported in China), and the opening and restoring effect and efficiency of the armor steel wires also vary greatly depending on the skills of the operators.

[0003] Currently, on the one hand, with the improvement of the manufacturing process of load-bearing cables, the performance indicators of load-bearing cables have improved to some extent; on the other hand, due to the need for construction technology, the use environment of load-bearing cables is more complex. Overall, the failure rate of load-bearing cables has increased. In order to save costs and ensure the use length and performance indicators of load-bearing cables, the technology of re-splicing the failed load-bearing cables has become more and more popular. The original work of splicing load-bearing cables by professional personnel has been extended to ordinary users. Ordinary users only undergo short-term training on load-bearing cable splicing, and cannot undergo long-term practical operation practice. The splicing quality of load-bearing cables is generally not high, especially the restoration of cable armor steel wires does not meet the requirements, causing re-splicing or affecting the use effect. SUMMARY

[0004] The purpose of the present application is to provide a load-bearing cable armor restoring device to ensure that the cable armor is not deformed during opening and restoring, and to improve the restoration quality and efficiency.

[0005] The purpose of the present application can be achieved by the following technical solutions:

[0006] A load-bearing cable armor restoring device comprises:

[0007] The armored restorer comprises a restorer body with a first axial through hole for the power cable to pass through, and a plurality of restorer handles and a plurality of armored teeth respectively arranged radially on the restorer body;

[0008] The armored rotator comprises a rotator body with a second axial through hole for the power cable to pass through, and a plurality of support rods arranged radially on the rotator body, and the end of the support rod is further provided with an armored positioning block for fixing the armored steel wire.

[0009] Further, the restorer body is formed by the axial sliding fit of the restorer main part and the restorer secondary part through the key and the key groove.

[0010] Further, the first wire hole for installing the restorer handle is machined on the restorer body, and at least one first wire hole penetrates the restorer main part and the restorer secondary part radially at the same time, so that when the restorer handle is inserted into the first wire hole, the restorer main part and the restorer secondary part are relatively fixed.

[0011] Further, the top end of the armored tooth is machined with a laterally protruding hemispherical cap.

[0012] Further, the armored teeth and the restorer handles are respectively provided with three corresponding equal intervals.

[0013] Further, the rotator body is formed by the axial sliding fit of the rotator main part and the rotator secondary part through the key and the key groove.

[0014] Further, the second wire hole for installing the support rod is machined on the rotator body, and at least one second wire hole penetrates the rotator main part and the rotator secondary part radially at the same time, so that when the support rod is inserted into the second wire hole, the rotator main part and the rotator secondary part are relatively fixed.

[0015] Further, the number of support rods corresponds to the number of restorer handles.

[0016] Further, the armored positioning block is further inlaid with a bearing, and the armored steel wire is fixed with the bearing during work.

[0017] Further, the restoration device further comprises an armored pitch changer, the armored pitch changer comprises a changer body with a third axial through hole for the power cable to pass through, and the changer body is further provided with a third wire hole connected with the third axial through hole radially, and a changer handle is matched and screwed into the third wire hole.

[0018] The present application is a special tool for opening and recovering the load-bearing cable armor. The common load-bearing cable user can master the use of the device after a short period of training. In the process of opening and recovering the load-bearing cable armor wire, the normal use of the device can effectively ensure that the load-bearing cable armor wire opening is not deformed, effectively ensure that the load-bearing cable armor recovery is flat and meets the requirements. Achieve the purpose of improving the efficiency of opening and recovering the load-bearing cable armor. It is more beneficial to improve the splicing quality of the load-bearing cable and promote the application of splicing technology. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present application;

[0020] Figure 2 It is a front view schematic diagram of the main body of the restorer;

[0021] Figure 3 It is a side view schematic diagram of the main body of the restorer;

[0022] Figure 4 It is a sectional view schematic diagram of the main part of the restorer;

[0023] Figure 5 It is a sectional view schematic diagram of the auxiliary part of the restorer;

[0024] Figure 6 It is a schematic diagram of the handle of the restorer;

[0025] Figure 7 It is a front view schematic diagram of the main body of the rotator;

[0026] Figure 8 It is a side view schematic diagram of the main body of the rotator;

[0027] Figure 9 It is a sectional view schematic diagram of the main part of the rotator;

[0028] Figure 10 It is a sectional view schematic diagram of the auxiliary part of the rotator;

[0029] Figure 11 It is a schematic diagram of the support rod;

[0030] Figure 12 It is a schematic diagram of the armor positioning block;

[0031] Mark description in the figure:

[0032] 1-armored restorer, 11-restorer main body, 12-restorer handle, 13-armored tooth, 14-first axial through hole, 15-restorer main part, 16-restorer auxiliary part, 17-first wire hole;

[0033] 2 - armored rotator, 21 - rotator body, 22 - support rod, 23 - armored positioning block, 24 - second axial through hole, 25 - rotator main part, 26 - rotator auxiliary part, 27 - second wire hole, 28 - bearing;

[0034] 3 - armored pitch changer, 31 - changer body, 32 - changer handle, 33 - third axial through hole. DETAILED DESCRIPTION

[0035] The application will be described in detail below with reference to the drawings and specific embodiments. The embodiments are implemented on the premise of the technical scheme of the application, and detailed implementation modes and specific operation processes are given, but the protection scope of the application is not limited to the following embodiments.

[0036] In the following embodiments or examples, if no specific function components or structures are mentioned, it means that they are all common components or structures used in the field to achieve the corresponding functions.

[0037] In order to improve the recovery effect and efficiency of the armored load-bearing cable, the application provides an armored load-bearing cable recovery device, the structure of which is shown in Figures 1 to 12 and includes:

[0038] The armored recovery device 1 includes a recovery device body 11 with a first axial through hole 14 for the cable to pass through, and a plurality of recovery device handles 12 and a plurality of armored teeth 13 arranged radially on the recovery device body 11, respectively.

[0039] The armored rotator 2 includes a rotator body 21 with a second axial through hole 24 for the cable to pass through, and a plurality of support rods 22 arranged radially on the rotator body 21, and the end of the support rod 22 is also provided with an armored positioning block 23 for fixing the armored steel wire. In the application, the armored recovery device 1 plays a role in opening and recovering the armored steel wire of the load-bearing cable, and the armored rotator 2 is mainly used to realize the synchronous rotation of the opened armored steel wire of the load-bearing cable, so as not to bear excess force and avoid deformation.

[0040] In a specific embodiment, please refer to Figures 2 to 6 The recovery device body 11 is formed by the key and key groove formed along the axial sliding fit of the recovery device main part 15 and the recovery device auxiliary part 16. The key and key groove of the recovery device main part 15 and the recovery device auxiliary part 16 can adopt any structure as long as they can be relatively slid along the central axis, so as to facilitate assembly and disassembly, and also facilitate positioning and fixing. Preferably, the division interface of the recovery device main part 15 and the recovery device auxiliary part 16 also divides the first axial through hole 14 into two parts. At the same time, the two ends of the recovery device body 11 are preferably processed into a circular truncated cone type, so as not to easily damage the armored steel wire in use.

[0041] In a more specific embodiment, the restorer body 11 is provided with a first wire hole 17 for mounting the restorer handle 12, and at least one first wire hole 17 penetrates the restorer main part 15 and the restorer auxiliary part 16 in the radial direction at the same time, so that when the restorer handle 12 is inserted into the first wire hole 17, the restorer main part 15 and the restorer auxiliary part 16 are relatively fixed.

[0042] In a specific embodiment, please refer to Figure 2 As shown, the top of the armored tooth 13 is provided with a laterally protruding hemispherical cap, so that the opened armored steel wire is in a relatively stable position and is not easy to deform.

[0043] In a specific embodiment, the armored tooth 13 and the restorer handle 12 are respectively provided with three corresponding equal intervals.

[0044] In a specific embodiment, please refer to Figures 7 to 12 As shown, the rotator body 21 is formed by the rotator main part 25 and the rotator auxiliary part 26 through the key and the key groove formed along the axial sliding fit, and the design requirements can refer to the restorer body 11.

[0045] Further, the rotator body 21 is provided with a second wire hole 27 for mounting the support rod 22, and at least one second wire hole 27 penetrates the rotator main part 25 and the rotator auxiliary part 26 in the radial direction at the same time, so that when the support rod 22 is inserted into the second wire hole 27, the rotator main part 25 and the rotator auxiliary part 26 are relatively fixed.

[0046] In a specific embodiment, the number of the support rod 22 corresponds to the number of the restorer handle 12.

[0047] In a specific embodiment, please refer to Figure 12 As shown, the armored positioning block 23 is also embedded with a bearing 28, and in operation, the armored steel wire is fixed with the bearing 28, and when the armored rotator 2 rotates, the armored steel wire placed in the armored positioning block 23 does not deform due to the rotation stress because the friction required for the rotation of the bearing 28 is small.

[0048] In a specific embodiment, please refer to Figure 1As shown, the recovery device further comprises an armored pitch changer 3, which comprises a changer body 31 having a third axial through hole 33 for the power cable to pass through, and a third wire hole is further provided on the changer body 31 along the radial direction and connected with the third axial through hole 33, and a changer handle 32 is matched and screwed into the third wire hole. The function of the armored pitch changer 3 is mainly to change the pitch of the single armored steel wire. In this way, when the pitch of a certain armored steel wire needs to be adjusted, one end of the armored steel wire is placed in the third axial through hole 33 of the changer body 31, and then the changer handle 32 is screwed into the third wire hole to fix the armored steel wire. By rotating as needed, the pitch of the single armored steel wire can be changed, that is, the pitch of the armored steel wire can be changed, so that the pitch of the armored steel wire is consistent with the pitch of the corresponding armored steel wire, and the load-bearing cable armor is restored to the required flatness. When the armored pitch changer 3 is in the working state, the distance between the armored pitch changer 3 and the armored positioning block 23 is relatively close, and the armored steel wire pitch is in a stable state by relying on the gravity of the changer handle 32, and is basically not affected by the normal work of the armored recovery device 1 and the armored rotator 2.

[0049] Each of the above embodiments can be implemented alone or in any two or more combinations.

[0050] The above embodiments will be described in more detail below in conjunction with specific examples.

[0051] Example 1:

[0052] In order to improve the recovery effect and efficiency of the load-bearing cable armor, the present embodiment proposes a load-bearing cable armor recovery device, the structure of which is shown in Figures 1 to 12 As shown, it comprises:

[0053] The armored recovery device 1 comprises a recovery device body 11 having a first axial through hole 14 for the power cable to pass through, and three recovery device handles 12 and three armored teeth 13 are arranged on the recovery device body 11 at equal intervals along the radial direction, respectively;

[0054] The armored rotator 2 comprises a rotator body 21 having a second axial through hole 24 for the power cable to pass through, and three support rods 22 are arranged on the rotator body 21 at equal intervals along the radial direction, and the end of the support rod 22 is further provided with an armored positioning block 23 for fixing the armored steel wire. In the present embodiment, the armored recovery device 1 plays a role of opening and recovering the armored steel wire of the load-bearing cable, and the armored rotator 2 mainly realizes the synchronous rotation of the opened armored steel wire of the load-bearing cable, so as not to bear the excess force and avoid deformation.

[0055] Please refer to Figures 2 to 6As shown, the restorer body 11 is formed by the restorer main part 15 and the restorer secondary part 16 through the formation of keys and keyways along the axial sliding fit, the key and keyway fit of the restorer main part 15 and the restorer secondary part 16 can adopt any structure, as long as the two can be relatively slid along the central axis direction, so as to facilitate assembly and disassembly, and also facilitate positioning and fixing. Preferably, the division interface of the restorer main part 15 and the restorer secondary part 16 also divides the first axial through hole 14 into two parts. At the same time, the two ends of the restorer body 11 are preferably machined into a circular truncated cone type, so that the armored steel wire is not easy to be damaged in use. The restorer body 11 is machined with a first wire hole 17 for installing the restorer handle 12, and at least one first wire hole 17 penetrates the restorer main part 15 and the restorer secondary part 16 at the same time along the radial direction, so that when the restorer handle 12 is inserted into the first wire hole 17, the restorer main part 15 and the restorer secondary part 16 are relatively fixed.

[0056] Please see again Figure 2 As shown, the top end of the armored tooth 13 is machined with a laterally protruding hemispherical cap, so that the opened armored steel wire can be kept in a relatively stable position and is not easy to deform.

[0057] Please see again Figures 7 to 12 As shown, the rotator body 21 is formed by the rotator main part 25 and the rotator secondary part 26 through the formation of keys and keyways along the axial sliding fit, and its design requirements can refer to the restorer body 11. The rotator body 21 is machined with a second wire hole 27 for installing the support rod 22, and at least one second wire hole 27 penetrates the rotator main part 25 and the rotator secondary part 26 at the same time along the radial direction, so that when the support rod 22 is inserted into the second wire hole 27, the rotator main part 25 and the rotator secondary part 26 are relatively fixed. The number of the support rod 22 corresponds to the number of the restorer handle 12.

[0058] Please see again Figure 12 As shown, the armored positioning block 23 is also embedded with a bearing 28, and during work, the armored steel wire is fixed with the bearing 28, and when the armored rotator 2 rotates, the armored steel wire placed in the armored positioning block 23 does not deform due to the rotating stress because the friction required for the rotation of the bearing 28 is small.

[0059] Please see again Figure 1As shown, the recovery device further comprises an armored pitch changer 3, which comprises a changer body 31 having a third axial through hole 33 for the power cable to pass through, and a third wire hole is further provided on the changer body 31 along the radial direction and connected with the third axial through hole 33, and a changer handle 32 is matched and screwed into the third wire hole. The function of the armored pitch changer 3 is mainly to change the pitch of the single armored steel wire. In this way, when the pitch of a certain armored steel wire needs to be adjusted, one end of the armored steel wire is placed in the third axial through hole 33 of the changer body 31, and then the changer handle 32 is screwed into the third wire hole to fix the armored steel wire. According to the need, the pitch of the single armored steel wire can be changed by rotating the changer handle 32, so that the pitch of the armored steel wire is consistent with the pitch of the corresponding armored steel wire, and the load-bearing cable armor is restored to the required flatness. When the armored pitch changer 3 is in the working state, the distance between the armored pitch changer 3 and the armored positioning block 23 is relatively close, and the armored steel wire pitch is in a stable state by relying on the gravity of the changer handle 32, and is basically not affected by the normal work of the armored restorer 1 and the armored rotator 2.

[0060] The working process of the recovery device of the embodiment is as follows:

[0061] When using the recovery device, the 7J46RX load-bearing cable is lowered by about 35 meters, the 24 armored steel wires of the outer layer of the load-bearing cable are divided into three groups (8 steel wires per group) and opened by about 1.5 meters, the inner layer armored and the cable core are fixed at a height of about 1.5 meters, a certain tension of 5-10KN is applied to the cable, and the cable to be opened is straightened to a height of not less than 1.1 meters from the ground. The armored restorer 1 is installed outside the inner layer armored of the cable, and the one end of the armored tooth 13 of the armored restorer 1 is close to the opening of the outer layer armored. The three groups of outer layer armored steel wires are placed between the three armored teeth 13 and the three restorer handles 12 (i.e. through the space between the armored teeth 13 and the restorer handles 12). The armored rotator 2 is installed outside the inner layer armored of the load-bearing cable, about 0.5 meters away from the cable end. The ends of the three groups of outer layer armored steel wires are placed in the armored positioning block 23 and fixed, and a proper tension is applied to the armored rotator 2 by hand to make the three groups of outer layer armored steel wires in a relatively straight state. According to the opening direction, the armored restorer 1 and the armored rotator 2 are rotated synchronously, the armored restorer 1 rotates forward close to the outer layer steel wire opening, and the armored rotator 2 remains relatively fixed position. The outer layer armored steel wires are opened in three groups, and when the outer layer armored steel wires are opened for a long time, the armored rotator 2 is installed. Ensure that the three groups of rotating steel wires do not collide with the inner layer armored.

[0062] The opened outer armor steel wire is spliced according to the needs of the cable end (defined as A) reserved, and the cable segment (defined as B) that needs to be spliced is cut off as described above. The armor recovery device 1 and the armor rotator 2 are disassembled, and the outer armor steel wire that has been opened is placed for standby use. After the splicing of the two-part cable core and the inner armor is completed, a certain tension 5-10KN is applied to the cable to straighten the cable segment that needs to be spliced, and the distance from the ground is not less than 1.1 meters. The armor recovery device 1 and the corresponding number of armor rotators 2 are installed in the opened armor manner. According to the needs, the armor recovery device 1 and the armor rotator 2 are synchronously rotated, and the three outer armor steel wires are restored to the inner armor. Generally, when the outer armor steel wire does not deform and the pitch does not change, the outer armor steel wire can be well restored to the inner armor. If it is found that the armor recovery steel wire is stacked and uneven, generally, the steel wire that has one side stacked and the other side with a gap is the steel wire with abnormal pitch. At this time, the end of the steel wire with abnormal pitch is installed on the armor pitch changer 3, and the armor pitch changer 3 is rotated according to the needs to restore the pitch of the steel wire with abnormal pitch to normal. Continue to recover the armor, and the flatness of the armor recovery reaches the requirements. The outer armor steel wire is restored to the reserved position of the outer steel wire of the other cable, and two outer armor steel wires are taken out from the armor positioner. Continue to recover the remaining steel wire, and open the corresponding 8 outer steel wires of the B segment as a group. The outer armor steel wire of the B segment is opened, and the outer armor steel wire of the A segment is restored to the slot opened by the B segment steel wire. If the recovery of this steel wire finds that one end is stacked with the outer armor steel wire of the B segment and the other end has a gap with the outer armor steel wire. Use the armor pitch changer 3 to change so that the pitch of the A segment cable is the same as that of the outer armor steel wire of the B segment, so that the outer armor steel wire is restored flat. When the B segment steel wire is opened for a long time, install the armor rotator 2 to fix the end of the steel wire, and the armor recovery device 1 and the armor rotator 2 are synchronously rotated. Make the outer armor steel wire of the A segment restore to the specified position. Cut off one steel wire of the opened steel wire of the B segment, which is reserved in the original position, and cut off the corresponding steel wire of the A segment, and the gap between the corresponding steel wires is less than 3mm. Remove the cut steel wire of the A segment, and continue to recover the steel wire for 6 pitches. Cut off one steel wire of the opened steel wire of the B segment, which is reserved in the original position, and cut off the corresponding steel wire of the A segment, and the gap between the corresponding steel wires is less than 3mm. Use the above method to complete the splicing of the remaining steel wires. At the gap of each group of steel wires, the end of the steel wire is fixed with a thin stainless steel sheet. Use the splicing method of one group of outer armor steel wires of the A segment and one group of outer armor steel wires of the B segment to splice the remaining two groups of outer armor steel wires of the A segment and the B segment. After splicing is completed, the armor pitch changer 3, the armor recovery device 1 and the armor rotator 2 are disassembled.

[0063] The protection device is designed in multiple ways to achieve the purposes of opening and restoring the armor of load-bearing cables of various types and improving the efficiency of opening and restoring the armor of load-bearing cables.

[0064] The foregoing description of the embodiments is for the purpose of enabling a person with ordinary skill in the art to understand and use the invention. Various modifications to these embodiments can be readily apparent to those skilled in the art and the generic principles described herein can be applied to other embodiments without departing from the scope of the invention. Thus, the present invention is not intended to be limited to the embodiments described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A loaded cable armor restoration device, characterized by, The application relates to a recovery device for armored cable. The recovery device comprises a recovery device main body with a first axial through hole for the armored cable, a plurality of recovery device handles and a plurality of armored teeth arranged on the recovery device main body in the radial direction respectively, and a rotation device main body with a second axial through hole for the armored cable, and a plurality of support rods arranged on the rotation device main body in the radial direction, the end of the support rod is further provided with an armored positioning block for fixing armored steel wires. The recovery device main body is formed by a recovery device main part and a recovery device secondary part through axial sliding fit of a key and a key groove. The recovery device main body is provided with a first wire hole for installing the recovery device handle, and at least one first wire hole penetrates the recovery device main part and the recovery device secondary part in the radial direction at the same time, so that the recovery device main part and the recovery device secondary part are fixed relative to each other when the recovery device handle is inserted into the first wire hole. The rotation device main body is formed by a rotation device main part and a rotation device secondary part through axial sliding fit of a key and a key groove. The rotation device main body is provided with a second wire hole for installing the support rod, and at least one second wire hole penetrates the rotation device main part and the rotation device secondary part in the radial direction at the same time, so that the rotation device main part and the rotation device secondary part are fixed relative to each other when the support rod is inserted into the second wire hole. The armored positioning block is further embedded with a bearing, and the armored steel wire is fixed with the bearing during work. The recovery device further comprises an armored pitch changer, the armored pitch changer comprises a changer main body with a third axial through hole for the armored cable, the changer main body is further provided with a third wire hole communicated with the third axial through hole in the radial direction of the changer main body, and a changer handle is matched and screwed into the third wire hole. The top end of the armored tooth is provided with a laterally protruding hemispherical cap.

2. A load-bearing cable armour restoration device according to claim 1, characterised in that, The armored tooth and the recovery device handle are respectively provided with three corresponding equidistant intervals.

3. A load bearing cable armour restoration device according to claim 1, characterised in that, The number of the support rods is consistent with that of the recovery device handles.

4. A load-bearing cable armour restoration device according to claim 1, characterised in that, ​

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