Cable flexible joint operation support

Abstract

The utility model discloses a cable flexible joint operation support, belongs to the field of cable equipment, and solves the problem that large potential quality hazards such as eccentricity of a cable flexible joint can be caused when a cable flexible joint tool mold is used for fixing and supporting in the prior art. According to the technical scheme, the two sets of clamp devices are arranged at the two ends of the support body; in the two groups of clamp devices, at least one group of clamp devices is a movable clamp device and is arranged on the bracket body in a sliding manner; the clamp device comprises a clamp seat, two clamp claws are arranged in the clamp seat, and a driving mechanism for driving the two clamp claws to be opened and closed is arranged between the two clamp claws. According to the cable flexible joint operation support, equipment operation is simple and reliable, good supporting and fixing can be provided in the manufacturing process of the cable flexible joint, the coaxiality of the manufactured cable flexible joint is guaranteed, and the occurrence probability of the eccentric condition is reduced.

Description

Technical Field

[0001] The utility model relates to a cable flexible joint operating bracket and belongs to the field of cable processing equipment. Background Art

[0002] In recent years, with the development of the national economy, long-distance ultra-high voltage direct current transmission projects have been widely used in China. Due to the limitations of production length and transportation conditions, a single cable cannot meet the actual needs of the project, so the cable joint manufacturing technology becomes particularly important. Especially for cables in special use scenarios such as submarine cables, they may need to withstand certain external forces and chemical reactions. Ordinary joint structures will be more prone to cracks, and the consequences of cracks will also be easier and faster to develop further.

[0003] In the prior art, the cable flexible joint operation is mainly prepared by the "two-step method" and the "one-step method". The "two-step method" is to first complete the filling and shaping of the insulating material in the injection molding device, and then complete the cross-linking of the filled insulating material in the molded structure in the cross-linking mold. The "one-step method" is to use a single-end extrusion process to fill the insulating material into a specific tooling mold, and directly heat and cross-link after the injection molding is completed. During the injection molding and cross-linking process of the insulating material, the coaxiality of the two sections of the cable flexible joint must be maintained at all times, so the fixation of the cable flexible joint during the preparation process is particularly important. In the prior art, most of them only have cable flexible joint tooling molds, and the fixing and supporting effects are extremely unstable. Especially when the outer diameter of the cable core is large and the length of the flexible joint is long, the use of cable flexible joint tooling molds for fixing and supporting will bring greater quality risks to the flexible joint operation, such as causing the cable flexible joint to be eccentric, etc., affecting the quality of the finished product of the cable flexible joint. Utility Model Content

[0004] In view of the problems existing in the prior art, the utility model provides a cable flexible joint operating bracket. The equipment is simple to operate and can provide better support and fixation during the preparation process of the cable flexible joint, thereby ensuring the coaxiality of the cable flexible joint and reducing the probability of eccentricity.

[0005] The technical solution adopted by the utility model is a cable flexible joint operating bracket, comprising a bracket body and two sets of clamp devices, wherein the two sets of clamp devices are arranged at both ends of the bracket body;

[0006] At least one of the two sets of clamping devices is a movable clamping device and is slidably disposed on the bracket body;

[0007] The clamp device comprises a clamp seat, in which two clamp claws are arranged, and between the two clamp claws there is a driving mechanism for driving the two clamp claws to open and close;

[0008] A supporting component for supporting the distance between the two groups of clamp devices is provided between the two groups of clamp devices, and the supporting component is respectively fixed to the two groups of clamp devices.

[0009] Optimally, the above-mentioned cable flexible joint operating bracket has a sliding drive assembly between the movable clamp device and the bracket body;

[0010] The sliding drive assembly includes a screw and a screw drive mechanism, and the screw drive mechanism is connected to the end of the screw in a power transmission manner;

[0011] One end of the screw rod has a screw rod rotating seat and is rotatably connected to the screw rod rotating seat, and the other end of the screw rod passes through the clamp seat of the movable clamp device;

[0012] A nut is fixed inside the clamp seat of the movable clamp device, and the screw rod passes through the nut and is threadedly connected with the nut.

[0013] Optimally, the cable flexible joint operating bracket has a hollow interior of the clamp seat, two clamp claws are installed in the clamp seat and the two clamp claws are arranged opposite to each other;

[0014] The middle section of the clamp jaw is rotatably connected to the clamp seat through a rotating shaft, the upper end of the clamp jaw is a clamping end, and the driving mechanism is connected to the lower end of the clamp jaw.

[0015] Optimally, the driving mechanism of the above-mentioned cable flexible joint operating bracket includes a clamping screw rod 2, a fixed rotating seat 2 and two rotating blocks;

[0016] The second fixed rotating seat is fixedly arranged in the clamp seat, and the middle section of the second clamping screw passes through the second fixed rotating seat and is rotatably connected to the second fixed rotating seat through a bearing;

[0017] The two rotating blocks are connected to the two clamp claws respectively; the lower section of the clamp claw is constructed with a mounting groove, the rotating block is installed in the mounting groove and is rotatably connected to the mounting groove through a rotating shaft;

[0018] Both ends of the clamping screw rod 2 are respectively constructed with external threads, and the external threads at both ends of the clamping screw rod 2 are arranged in opposite directions; the two ends of the clamping screw rod 2 respectively pass through the middle parts of the two rotating blocks and are threadedly connected with the two rotating blocks.

[0019] Optimally, in the cable flexible joint operating bracket, the rotating shaft between the rotating block and the mounting groove, and the rotating shaft between the middle section of the clamp claw and the clamp seat are arranged in parallel.

[0020] Optimally, the above-mentioned cable flexible joint operating bracket has a middle section of the clamp claw having a bend, and the bending angle of the middle section of the clamp claw is an obtuse angle.

[0021] Optimally, the cable flexible joint operating bracket has an upper end of the clamping claw rotatably connected to a clamping head via a rotating shaft;

[0022] The surface of the clamping head away from the upper end of the clamping claw is an arc surface.

[0023] Optimized, in the above-mentioned cable flexible joint operating bracket, a lower support block is installed in the clamp seat, the upper end of the lower support block has a groove, the groove is a V-shaped groove, and the bottom end of the V-shaped groove is constructed with a fine groove.

[0024] Optimally, the above-mentioned cable flexible joint operating bracket has a rod-shaped supporting component, and both ends of the supporting component are relatively fixed to two sets of clamping devices by bolts respectively.

[0025] Optimally, the above-mentioned cable flexible joint operating bracket, the supporting component includes a middle sleeve and two end rods, one end of the end rod is inserted into the middle sleeve and threadedly connected with the middle sleeve, and the other end of the end rod is constructed with a flat end; the flat end of the end rod is constructed with a through hole for the bolt to pass through;

[0026] The threads of the two end rods are in opposite directions, and an internal thread matched with the end rods is constructed in the middle sleeve.

[0027] The beneficial effects of this application are:

[0028] Compared with the prior art, the cable flexible joint operating bracket of the present application is suitable for clamping the cable with two clamp claws in the clamp seat, and the lower support block supports the lower part of the cable, forming a three-point clamping support for the cable, which can clamp cables of various outer diameters. The cable can be clamped and loosened by simply turning the clamping screw 2. The operation is simple and has a wide range of applications, and can be applied to the working requirements of various types of cables. In addition, better fixed support can be provided when making a cable flexible joint, so that the two ends of the cable flexible joint maintain good coaxiality when jointing, and at the same time, the failure of cable flexible joint preparation caused by cable shaking can be avoided.

[0029] The device of the cable flexible joint operating bracket of the present application has good support. During the cooling process of the joint after the cable flexible joint, a cold shrinkage effect will occur at the joint; during the injection process of the cable flexible joint, a thermal expansion effect will occur at the joint. In both cases, the support of the supporting components can ensure the position of the two sets of clamping devices and the stability of the two sets of clamping devices, and prevent the problem of reduced coaxiality at both ends of the cable joint caused by the offset and tilt of the two sets of clamping devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of this application;

[0031] Figure 2 This is a schematic diagram of the structure of the clamp device in this application when clamping a cable;

[0032] Figure 3 for Figure 2 Side view of. DETAILED DESCRIPTION

[0033] The technical features of the present invention are further described below in conjunction with the accompanying drawings and specific embodiments.

[0034] The present application discloses a cable flexible joint operating bracket, comprising a bracket body 3 and two sets of clamping devices, wherein the two sets of clamping devices are arranged at both ends of the bracket body 3. The bracket body 3 can be welded into a truss type using square steel pipes and angle steels to ensure a good degree of support and fixation, and the bracket body 3 can be fixed to the ground by bolts or not.

[0035] At least one of the two sets of clamp devices is a movable clamp device and is slidably arranged on the bracket body 3. By sliding the movable clamp device on the bracket body 3, it is convenient to adjust the spacing between the two sets of clamp devices when operating the flexible joints of cable core wires with different outer diameters, so as to reduce the hanging length of the two cable core wires to be jointed, reduce the hanging deformation of the cable core wires due to the deadweight problem, and ensure the coaxiality of the two cable core wires to be jointed to a certain extent.

[0036] Specifically, the clamp seat 201 of the movable clamp device is movably mounted on the bracket body 3, and a sliding drive assembly is provided between the movable clamp device and the bracket body 3. The sliding drive assembly includes a screw rod 401 and a screw rod driving mechanism 402, the screw rod driving mechanism 402 is connected to the end of the screw rod 401, one end of the screw rod 401 has a screw rod rotating seat 403 and is rotationally connected to the screw rod rotating seat 403, and the other end of the screw rod 401 passes through the clamp seat 201 of the movable clamp device. A nut 404 is fixed inside the clamp seat 201 of the movable clamp device, and the screw rod 401 passes through the nut 404 and is threadedly connected to the nut 404.

[0037] In this embodiment, a bevel gear is fixed to the end of the screw 401, and the power output end of the screw driving mechanism 402 cooperates with the bevel gear at the end of the screw 401. The screw driving mechanism 402 drives the bevel gear and the screw 401 to rotate, thereby driving the movable clamp device to move.

[0038] In the present application, two clamp jaws 202 are arranged in the clamp seat 201, and a driving mechanism for driving the two clamp jaws 202 to open and close is provided between the two clamp jaws 202.

[0039] In the present application, the clamp seat 201 is designed to be hollow inside. In this embodiment, the clamp seat 201 can be formed of a structure with two sides and an upper end open by using a plurality of thick steel plates. Two clamp jaws 202 are installed in the clamp seat 201 and the two clamp jaws 202 are arranged opposite to each other. In this embodiment, the clamp jaws 202 are arranged in a form with a bend in the middle section, and the bend angle of the middle section of the clamp jaws 202 is an obtuse angle. The bend openings of the two clamp jaws 202 of the same set of clamp devices are arranged opposite to each other.

[0040] The middle section of the clamp jaw 202 is rotatably connected to the clamp seat 201 via a rotating shaft, the upper end of the clamp jaw 202 is a clamping end, and the driving mechanism is connected to the lower end of the clamp jaw 202 .

[0041] The driving mechanism includes a clamping screw rod 501, a fixed rotating seat 502 and two rotating blocks 503. The fixed rotating seat 502 is fixedly arranged in the clamp seat 201, and the middle section of the clamping screw rod 501 passes through the fixed rotating seat 502 and is rotatably connected to the fixed rotating seat 502 through a bearing. The two rotating blocks 503 are respectively connected to the two clamp claws 202; the lower section of the clamp claw 202 is constructed with a mounting groove, and the rotating block 503 is installed in the mounting groove and is rotatably connected to the mounting groove through a rotating shaft. The two ends of the clamping screw rod 501 are respectively constructed with external threads, and the external threads at the two ends of the clamping screw rod 501 are arranged in opposite directions; the two ends of the clamping screw rod 501 pass through the middle of the two rotating blocks 503 and are threadedly connected to the two rotating blocks 503. The rotating shaft between the rotating block 503 and the mounting groove and the rotating shaft between the middle section of the clamp claw 202 and the clamp seat 201 are arranged in parallel.

[0042] During the clamping process, the lower ends of the two clamping jaws 202 can be relatively moved by rotating the clamping screw 2 501, so that the lower ends of the two clamping jaws 202 are moved closer or farther away. When the lower ends of the two clamping jaws 202 are moved closer, the upper ends of the two clamping jaws 202 are separated to release the clamped cable core wire. When the lower ends of the two clamping jaws 202 are moved away from each other, the upper ends of the two clamping jaws 202 are moved closer to each other and clamp the cable core wire.

[0043] The upper end of the clamp jaw 202 is rotatably connected to a clamp head 203 via a rotating shaft, and the surface of the clamp head 203 away from the upper end of the clamp jaw 202 is an arc surface. When the upper ends of the two clamp jaws 202 approach and clamp the cable core wire, the clamp heads 203 at the upper ends of the two clamp jaws 202 are adjusted so that the arc surfaces of the two clamp heads 203 fit the surface of the cable core wire, and the cable core wire is clamped by the arc surfaces of the two clamp heads 203. In order to avoid damaging the surface of the cable core wire, a nylon sheet can be set on the arc surface of the clamp head 203.

[0044] A lower support block 204 is installed in the clamp seat 201. The upper end of the lower support block 204 has a slot 205. The slot 205 is a V-shaped slot, and a thin groove is constructed at the V-shaped bottom of the slot 205. When clamping the cable core wire, the cable core wire can be placed in the slot 205 of the lower support block 204, and the cable core wire is supported from the bottom by the slot 205.

[0045] A support component is provided between the two clamping devices to support the distance between the two clamping devices, and the support component is respectively fixed to the two clamping devices. The support component is a rod type, and the two ends of the support component are respectively fixed to the two clamping devices by bolts.

[0046] The supporting component includes a middle sleeve 601 and two end rods 602. One end of the end rod 602 is inserted into the middle sleeve 601 and threadedly connected to the middle sleeve 601. The other end of the end rod 602 is constructed with a flat end. The flat end of the end rod 602 is constructed with a through hole for the bolt to pass through. The threads of the two end rods 602 are in opposite directions. The middle sleeve 601 is constructed with an internal thread that matches the end rod 602.

[0047] After the spacing between the two groups of clamping devices is adjusted, the support component is connected between the two groups of clamping devices to support the spacing between the two groups of clamping devices and prevent the spacing between the two groups of clamping devices from being stretched or shortened. Specifically, the clamp seat 201 of the clamping device can be provided with one or more tension bolts. After the spacing between the two groups of clamping devices is adjusted, the middle sleeve 601 is rotated to make the two end rods 602 extend or retract from the middle sleeve 601, and the overall length of the support component is adjusted, so that the through holes of the flat ends of the two end rods 602 can be sleeved on the tension bolts of the clamp seats 201 of the two clamping devices, and then the flat ends of the end rods 602 are fixed to the tension bolts of the clamp seat 201 using nuts, and the two groups of clamping devices are supported by the support component.

[0048] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention should fall within the protection scope of the present invention.

Claims

1. A cable flexible joint operating bracket, comprising a bracket body (3) and two sets of clamping devices, wherein the two sets of clamping devices are arranged at both ends of the bracket body (3); characterized in that: At least one of the two sets of clamping devices is a movable clamping device and is slidably arranged on the bracket body (3); The clamp device comprises a clamp seat (201), two clamp claws (202) are arranged in the clamp seat (201), and a driving mechanism for driving the two clamp claws (202) to open and close is provided between the two clamp claws (202); A supporting component for supporting the distance between the two groups of clamp devices is provided between the two groups of clamp devices, and the supporting component is respectively fixed to the two groups of clamp devices.

2. The cable flexible joint operating bracket according to claim 1, characterized in that: A sliding drive assembly is provided between the movable clamp device and the bracket body (3); The sliding drive assembly comprises a screw (401) and a screw drive mechanism (402), wherein the screw drive mechanism (402) is drivingly connected to the end of the screw (401); One end of the screw rod (401) has a screw rod rotating seat (403) and is rotatably connected to the screw rod rotating seat (403), and the other end of the screw rod (401) passes through the clamp seat (201) of the movable clamp device; A nut (404) is fixed inside the clamp seat (201) of the movable clamp device, and the screw rod (401) passes through the nut (404) and is threadedly connected with the nut (404).

3. The cable flexible joint operating bracket according to claim 1, characterized in that: The clamp seat (201) is hollow inside, and two clamp claws (202) are installed in the clamp seat (201) and the two clamp claws (202) are arranged opposite to each other; The middle section of the clamp jaw (202) is rotatably connected to the clamp seat (201) via a rotating shaft, the upper end of the clamp jaw (202) is a clamping end, and the driving mechanism is connected to the lower end of the clamp jaw (202).

4. The cable flexible joint operating bracket according to claim 3, characterized in that: The driving mechanism comprises a second clamping screw (501), a second fixed rotating seat (502) and two rotating blocks (503); The second fixed rotating seat (502) is fixedly arranged in the clamp seat (201), and the middle section of the second clamping screw (501) passes through the second fixed rotating seat (502) and is rotatably connected to the second fixed rotating seat (502) through a bearing; The two rotating blocks (503) are respectively connected to the two clamp claws (202); the lower section of the clamp claw (202) is formed with a mounting groove, and the rotating block (503) is installed in the mounting groove and is rotatably connected to the mounting groove through a rotating shaft; The two ends of the clamping screw rod 2 (501) are respectively constructed with external threads, and the external threads at the two ends of the clamping screw rod 2 (501) are arranged in opposite directions; the two ends of the clamping screw rod 2 (501) respectively pass through the middle parts of the two rotating blocks (503) and are threadedly connected with the two rotating blocks (503).

5. The cable flexible joint operating bracket according to claim 4, characterized in that: The rotating shaft between the rotating block (503) and the mounting groove, and the rotating shaft between the middle section of the clamp claw (202) and the clamp seat (201) are arranged in parallel.

6. The cable flexible joint operating bracket according to claim 4, characterized in that: The middle section of the clamp jaw (202) is bent, and the bending angle of the middle section of the clamp jaw (202) is an obtuse angle.

7. The cable flexible joint operating bracket according to claim 3, characterized in that: The upper end of the clamping claw (202) is rotatably connected to a clamping head (203) via a rotating shaft; The surface of the clamping head (203) away from the upper end of the clamping claw (202) is an arc-shaped surface.

8. The cable flexible joint operating bracket according to claim 3, characterized in that: A lower support block (204) is installed in the clamp seat (201), and the upper end of the lower support block (204) has a groove (205), the groove (205) is a V-shaped groove, and the V-shaped bottom end of the groove (205) is constructed with a fine groove.

9. The cable flexible joint operating bracket according to claim 1, characterized in that: The supporting component is rod-shaped, and two ends of the supporting component are relatively fixed to two sets of clamping devices through bolts respectively.

10. The cable flexible joint operating bracket according to claim 9, characterized in that: The support component comprises a middle sleeve (601) and two end rods (602), one end of the end rod (602) is inserted into the middle sleeve (601) and threadedly connected to the middle sleeve (601), and the other end of the end rod (602) is constructed with a flat end; the flat end of the end rod (602) is constructed with a through hole for a bolt to pass through; the threads of the two end rods (602) are in opposite directions, and the middle sleeve (601) is constructed with an internal thread that is configured to cooperate with the end rod (602).

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