A cable laying strand support device

Abstract

The application discloses a cable laying steel strand support device and relates to the technical field of cable laying.The support device comprises a fixed plate and an extrusion part which is installed on the fixed plate; wherein the extrusion part comprises two shaping rollers, the outer part of one of the shaping rollers is provided with a groove, and the steel strand is located in the groove during straightening; the outer part of the other shaping roller is provided with a plurality of extrusion balls which are distributed on the outer circle of the shaping roller and correspond to the groove. The cable laying steel strand support device effectively solves the technical problem that the existing cable laying steel strand support device cannot effectively straighten the steel strand during use, and the straightened steel strand is hammered, the steel wires in the steel strand are stretched, and the state of the straightened steel strand is maintained.

Description

Technical Field

[0001] This invention relates to the field of cable laying technology, and in particular to a cable laying steel strand support device. Background Technology

[0002] In power construction, before laying power cables, it is often necessary to lay and connect the steel strands used for the load-bearing structure. Currently, during the laying process, the steel strands are often placed directly on the ground. When dragging or moving the steel strands, they are in direct contact with the ground, resulting in high friction and the presence of many sharp and hard objects, which can easily cause surface wear and damage the anti-corrosion layer on the surface of the steel strands. Furthermore, dragging requires a lot of manpower, and barbs on the steel strands can prick workers.

[0003] Currently, Chinese patent publication number CN206985317U discloses a device that can reduce surface wear of steel strands during laying. Its features include multiple support wheels placed on a load-bearing base plate, two support plates placed on opposite sides of the base plate, rollers with bearings at both ends corresponding to the two support plates, two magnetic rods at both ends of the rollers, multiple semi-circular wire grooves on the rollers (the widths of these grooves are inconsistent, but the depths are the same), wear-resistant pads inside the grooves, two support rods with one end fixed to the base plate by screws and located on one side of the rollers, an adjusting pad with an adjusting screw on the other end of the support rod, a magnetic retaining ring on the adjusting pad, and two side stops with one end fixed to the base plate by screws and located on the other side of the rollers.

[0004] Chinese patent publication number CN213469386U discloses a steel strand straightening and straightening device, including a work platform. The work platform is equipped with a winding reel and a wire pulling frame. A wire inlet is located on the front side of the wire pulling frame. A wire feeding platform is positioned between the wire inlet and the winding reel. A straightening frame is located within the inner cavity of the wire pulling frame. A movable pressing frame and a fixed support frame are respectively arranged within the inner cavity of the straightening frame. The fixed support frame is mounted on the bottom plane of the wire pulling frame via a fixing plate. The movable pressing frame is mounted on the top plate of the wire pulling frame via a pushing device. The movable pressing frame and the fixed support frame are arranged in a mirror image. Clamping frames are installed on both the movable pressing frame and the fixed support frame. Clamping rollers are installed within each clamping frame, and arc-shaped grooves are provided on the roller surfaces of the clamping rollers. The clamping rollers move relative to the steel strands pressed inside, straightening and straightening the steel strands.

[0005] However, during the implementation of the above technical solution, at least the following technical problems were discovered:

[0006] Ineffective Straightening of Steel Strands: In power construction, before laying power cables, it is often necessary to pre-lay and connect the load-bearing steel strands. When not in use, the steel strands are often coiled up, resulting in a bent shape after being stretched, affecting normal use. It is difficult to quickly reshape the steel strands manually, impacting laying efficiency. Current straightening methods use reverse bending (bending the bent strands in the opposite direction) to restore them to a vertical position. However, because the steel strands have straight sections bent into arcs... When laying steel strands, the outer wires of the bend are stretched (L) and the inner wires are compressed (d). At this time, the wires inside the steel strand are squeezed against each other. When straightening by bending in the direction of the bend, the steel strands that have been stretched (L) are compressed when they recover, while the steel strands that have been bent (d) are stretched when they recover. This process will pull the wires inside the steel strand, causing the wires to be misaligned. Therefore, simply bending in the opposite direction will not only fail to achieve the desired effect, but will also affect the internal stress of the steel strand, leading to a reduction in the service life of the steel strand. To address this, we propose a steel strand support device for cable laying. Summary of the Invention

[0007] (a) Technical problems to be solved

[0008] To address the shortcomings of existing technologies, this invention provides a cable laying steel strand support device. By using a motor to drive the forming roller to rotate, the extrusion balls outside the forming tube hammer the steel strand, thereby compacting the straightened steel strand and relaxing the internal steel wires. This maintains the straightened steel strand's condition, avoids stress interactions within the strand, and solves the technical problem that existing cable laying steel strand support devices cannot effectively straighten the steel strand and have poor stability after straightening.

[0009] (II) Technical Solution

[0010] To achieve the above objectives, the present invention provides the following technical solution:

[0011] A cable laying steel strand support device includes a fixing plate for supporting the overall structure, and a pressing part is installed on the top of the fixing plate. The pressing part is straightened by steel strand, and has two shaping rollers that press against each other inside. One of the shaping rollers has a pressing ball on its outside.

[0012] A fixed plate is provided, under which casters can be installed to facilitate the movement of the device and avoid the need to spend time and effort to carry it.

[0013] The extrusion part is installed on the fixed plate and is used to straighten the steel strand, so that the steel strand supports the cable in the optimal state, avoiding further deformation or loosening of the steel strand when it is stressed;

[0014] Among them, the extrusion part includes two shaping rollers that correspond to each other up and down and are in contact with each other. An annular groove is formed on the outside of one shaping roller. During straightening, the steel strand is located in the groove, thereby restricting the movement range of the steel strand and avoiding loosening or deviation of the steel strand during straightening, thus improving the stability and accuracy of rectification;

[0015] On the outside of the other shaping roller, there are multiple extrusion balls with different diameters. By using extrusion balls with different diameters to extrude the steel strand, not only can the steel strand be deformed (straightened), but also the steel strand can be impacted by extrusion balls of different sizes, thereby forming a drop to increase the impact force on the steel strand. Moreover, the multiple extrusion balls are distributed in a circular pattern on the outer circle of the shaping roller. When the shaping roller rotates, it can drive different extrusion balls to move towards the groove direction and correspond to the groove, facilitating the impact on the steel strand inside the groove;

[0016] The shaping roller is driven by a motor to rotate, providing rotational torque for the shaping roller to make it rotate, and at the same time driving the extrusion balls outside the shaping roller to rotate together, thereby impacting and striking the steel strand and providing the power for the extrusion balls to strike.

[0017] By adopting the above technical solution: The extrusion balls can strike the steel strand during the rotation of the shaping roller, thereby loosening the steel wires inside the steel strand, enabling the steel wires inside the steel strand to recombine, and thus avoiding deformation of the shaped steel strand under the action of internal stress. By this method, not only can the stability of the steel strand be ensured, but also the steel strand can maintain good stability when subjected to external forces.

[0018] Preferably, the extrusion part further includes a connecting frame with a "C" - shaped structure with an upward opening, and both of the shaping rollers are installed in the opening of the connecting frame;

[0019] Among them, the connecting frame is embedded in the top of the fixed plate. When the connecting frame is impacted by an external force, the fixed plate can provide support for it, improving the stability of the connecting frame during use.

[0020] By adopting the above technical solution: It is possible to retract and release the shaping rollers, and at the same time limit the positions of the two shaping rollers, enabling them to stably clamp and straighten the steel strand.

[0021] Preferably, the outer side of the shaping roller is fitted with a collar, and the collar corresponds to a groove on the outer side of another shaping roller, so as to facilitate pressing the steel strand into the groove and avoid the position of the steel strand from shifting.

[0022] The outer wall of the collar is provided with a storage groove (for storing the extruded ball, providing storage space for the extruded ball), and the extruded ball is embedded in the storage groove and connected to the inner bottom surface of the storage groove by a spring.

[0023] By adopting the above technical solution, when the extrusion ball is subjected to the reaction force of the steel strand, it can be stored in the storage groove, avoiding hard extrusion between the extrusion ball and the outside of the steel strand, thus improving the safety and stability of steel strand straightening.

[0024] Preferably, the motor is installed inside the connecting frame, and the shaping roller with the extrusion ball is driven to rotate by the motor, thereby providing rotational power for the shaping roller. Alternatively, an external driver can be used for driving. This is a supplementary solution. When an external driver is used to drive the shaping roller to rotate, the output shaft of the external driver extends into the connecting frame and connects with the shaping roller, so the shaping roller is driven to rotate by the driver.

[0025] The motor's output shaft and the end of the shaping roller are connected by a linkage chain, and the motor drives the shaping roller to rotate through the linkage chain.

[0026] By adopting the above technical solution, when the motor is powered on and rotates, it can drive the shaping roller to rotate without the need for a connection between the motor output shaft and the shaping roller, which facilitates the adjustment of the motor position and avoids affecting the normal operation of the shaping roller.

[0027] Preferably, the linkage includes two gears and a chain sleeved on the outside of the two gears, providing a feasible solution for the aforementioned linkage;

[0028] The two gears are respectively mounted on the output shaft of the motor and the end of the shaping roller.

[0029] By adopting the above technical solution, when the motor rotates, it can drive the gear directly connected to its output shaft to rotate. Since the gear on the back of the output shaft is connected to the gear outside the shaping roller through a chain, the motor can drive the shaping roller to rotate when it rotates.

[0030] Preferably, a bracket is installed on the top of the fixing plate, and the bracket corresponds to the front and rear of the extrusion section for preliminary straightening of the steel strand, thereby cooperating with the extrusion section to facilitate and stably straighten the steel strand. Secondly, this application is not limited to this structure, and any structure with the same function can be used, which will not be elaborated here.

[0031] The bracket has two gravity guide rollers that fit together at the top. By pressing the bent steel strand in the direction of compression, the steel strand is bent in the opposite direction, thus restoring its original shape.

[0032] Preferably, one of the gravity guide rollers is fitted with an air bladder, and the air bladder is in an inflated state.

[0033] The airbag is equipped with a valve core on its exterior, and the airbag can be inflated through the valve core. The inflation state and degree of the airbag can be freely adjusted, which facilitates the compression of the steel strand and thus straightens the steel strand.

[0034] Preferably, a guide portion is installed on the top of the fixing plate, and the guide portion is located on the side of the extrusion portion away from the bracket, which is used to limit the range of motion of the steel strand.

[0035] By adopting the above technical solution, the position of the steel strand after straightening is avoided from shifting, or the straightening of the extrusion section is affected during the pulling process, thereby improving the stability and safety of straightening.

[0036] The guide section includes a guide cylinder and connecting rods connected to both sides of the guide cylinder. The guide cylinder is connected to the top of the fixed plate through the connecting rods, so that the guide cylinder corresponds to the extrusion section and is installed on the fixed plate.

[0037] Preferably, two pulleys are installed inside the guide cylinder, and limit grooves are formed at corresponding positions of the two pulleys, so as to squeeze the straightened steel strand between the two pulleys and transport it outward;

[0038] When the two pulleys are in contact, the limiting grooves are interconnected, and the steel strand passes through the limiting grooves, thereby confining the steel strand within the limiting grooves and preventing it from moving.

[0039] Preferably, the steel strand passes sequentially through the two gravity guide rollers, between the extrusion sections, and through the guide cylinder, thereby undergoing preliminary straightening, hammer straightening, and outward conveying in sequence.

[0040] (III) Beneficial Effects

[0041] 1. Because the forming roller is driven by a motor to rotate, the extrusion balls outside the forming tube hammer the steel strand. Therefore, it effectively solves the technical problem that the existing cable laying steel strand support device cannot effectively straighten the steel strand and has poor stability after straightening. It can then achieve the compaction of the straightened steel strand, so that the steel wires inside the steel strand can relax, thereby maintaining the state of the straightened steel strand and avoiding the interaction of stress inside the steel strand.

[0042] 2. Because the gravity guide roller with airbag is used to squeeze the steel strand, the technical problem of the existing cable laying steel strand support device being cumbersome to straighten and using rigid straightening is effectively solved. This achieves the initial straightening of the steel strand and also reduces the straightening structure of the steel strand.

[0043] 3. Because a guide cylinder is used to limit the movement of the steel strand, the technical problem of the steel strand easily shaking or shifting during use in existing cable laying steel strand support devices is effectively solved. This achieves the limitation of the steel strand, making the steel strand stable and straightening and improving the stability of the steel strand straightening. Attached Figure Description

[0044] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0045] Figure 1 This is an overall structural diagram of an embodiment of the present invention;

[0046] Figure 2 This is a structural diagram of the guide portion in an embodiment of the present invention;

[0047] Figure 3 This is a structural diagram of the extrusion section in an embodiment of the present invention;

[0048] Figure 4 This is an exploded view of the extrusion section in an embodiment of the present invention;

[0049] Figure 5 This is a schematic diagram of the driving structure of the shaping roller in an embodiment of the present invention;

[0050] Figure 6 This is a structural diagram of the shaping roller in an embodiment of the present invention;

[0051] Figure 7 This is a schematic diagram of the shaping of steel strands according to an embodiment of the present invention;

[0052] Figure 8 This is a cross-sectional view of the gravity guide roller in an embodiment of the present invention;

[0053] Figure 9 This is a schematic diagram of the steel strand structure in a bent state in an embodiment of the present invention;

[0054] Figure 10 For the present invention Figure 9 A schematic diagram of the structure of a steel strand after it has been straightened.

[0055] Legend: 1. Fixed plate; 2. Support; 3. Extrusion section; 31. Connecting frame; 32. Shaping roller; 33. Collar; 34. Extrusion ball; 35. Motor; 36. Linkage chain; 4. Guide section; 41. Guide cylinder; 42. Connecting rod; 5. Gravity guide roller. Detailed Implementation

[0056] This application provides a cable laying steel strand support device, which effectively solves the technical problem that existing cable laying steel strand support devices cannot effectively straighten the steel strands and have poor stability after straightening. In existing cable laying steel strand support devices, the use of a motor to drive the forming roller to rotate causes the extrusion balls outside the forming tube to hammer the steel strands, thereby compacting the straightened steel strands and relaxing the internal wires, thus maintaining the straightened state of the steel strands and avoiding stress interactions within the steel strands. The use of a gravity guide roller with an air bladder to compress the steel strands achieves preliminary straightening while reducing the size of the straightening structure. The use of a guide cylinder to limit the steel strands ensures stable straightening and improves the stability of the straightening process.

[0057] Example 1

[0058] The technical solution in this application embodiment effectively solves the technical problem that existing cable laying steel strand support devices cannot effectively straighten the steel strands and have poor stability after straightening. The overall idea is as follows:

[0059] To address the problems existing in the prior art, the present invention provides a cable laying steel strand support device. This support device includes a fixing plate 1 for supporting the overall structure, and a pressing part 3 is installed on the top of the fixing plate 1. The pressing part 3 straightens the steel strand and has two mutually pressing shaping rollers 32 inside. One of the shaping rollers 32 has a pressing ball 34 on its outside. The pressing ball 34 strikes the steel strand during the rotation of the shaping roller 32, loosening the internal steel wires and causing them to recombine. This prevents the shaped steel strand from deforming under internal stress. This method not only ensures the stability of the steel strand but also guarantees good stability when subjected to external forces.

[0060] Fixed plate 1, under which casters can be installed to facilitate the movement of the device and avoid the need to spend time and effort to move it;

[0061] The extrusion part 3 is installed on the fixed plate 1 and is used to straighten the steel strand, so that the steel strand is in the optimal state to support the cable, avoiding deformation or loosening of the steel strand when it is stressed, whether it is in the one-step method;

[0062] Among them, the extrusion part 3 includes two shaping rollers 32 that correspond to each other up and down and are in contact with each other. As Figure 4 shown, an annular groove is provided on the outside of one shaping roller 32. During straightening, the steel strand is located in the groove, thereby restricting the movement range of the steel strand and avoiding loosening or deviation of the steel strand during straightening, thus improving the stability and accuracy of correction;

[0063] On the outside of the other shaping roller 32, there are multiple extrusion balls 34 with different diameters. By using extrusion balls 34 with different diameters to extrude the steel strand, not only can the steel strand be deformed (straightened), but also the steel strand can be impacted by extrusion balls 34 of different sizes, thereby forming a drop to increase the impact force on the steel strand. Moreover, the multiple extrusion balls 34 are distributed in a circumferential manner on the outer circle of the shaping roller 32. When the shaping roller 32 rotates, it can drive different extrusion balls 34 to move towards the groove direction and correspond to the groove, facilitating the impact on the steel strand inside the groove;

[0064] The shaping roller 32 is driven to rotate by the motor 35, providing rotational torque for the shaping roller 32 to make the shaping roller 32 rotate, and at the same time driving the extrusion balls 34 outside the shaping roller 32 to rotate together, thereby impacting and shocking the steel strand and providing impact power for the extrusion balls 34.

[0065] In some examples, the extrusion part 3 further includes a connecting frame 31 with a "C" - shaped structure with an upward opening, and both shaping rollers 32 are installed in the opening of the connecting frame 31. As Figure 3 and Figure 4 shown, it can retract and release the shaping rollers 32, and at the same time can limit the positions of the two shaping rollers 32, enabling them to stably clamp and straighten the steel strand;

[0066] Among them, the connecting frame 31 is embedded in the top of the fixed plate 1. When the connecting frame 31 is impacted by an external force, the fixed plate 1 can provide support force for it, improving the stability of the use of the connecting frame 31.

[0067] In some examples, a collar 33 is sleeved on the outside of the shaping roller 32, and the collar 33 corresponds to the groove on the outside of the other shaping roller 32. As Figure 4 shown, it is convenient to press the steel strand into the groove and avoid the deviation of the position of the steel strand;

[0068] The outer wall of the collar 33 is provided with a storage groove (for storing the extrusion ball 34, providing storage space for the extrusion ball 34), and the extrusion ball 34 is embedded in the storage groove and connected to the inner bottom surface of the storage groove by a spring. When the extrusion ball 34 is subjected to the reaction force of the steel strand, it can be stored in the storage groove, avoiding hard extrusion between the extrusion ball 34 and the outside of the steel strand, thus improving the safety and stability of the steel strand straightening.

[0069] In some examples, the motor 35 is installed inside the connecting frame 31, and the shaping roller 32 with the extrusion ball 34 is driven to rotate by the motor 35, thereby providing rotational power for the shaping roller 32. Alternatively, an external driver can be used for driving. This is a supplementary solution. When an external driver is used to drive the shaping roller 32 to rotate, the output shaft of the external driver extends into the connecting frame 31 and connects with the shaping roller 32, so the shaping roller 32 is driven to rotate by the driver.

[0070] The motor 35 has a linkage chain 36 at the end of the output shaft and the shaping roller 32. The motor 35 drives the shaping roller 32 to rotate through the linkage chain 36. Therefore, when the motor 35 is energized and rotates, it can drive the shaping roller 32 to rotate without the need for a connection between the output shaft of the motor 35 and the shaping roller 32. This makes it convenient to adjust the position of the motor 35 and avoids affecting the normal operation of the shaping roller 32.

[0071] In some examples, the linkage 36 includes two gears and a chain fitted over the two gears, such as... Figure 5 As shown, a feasible solution is provided for the above-mentioned linkage chain 36;

[0072] Two gears are respectively mounted on the output shaft of the motor 35 and the end of the shaping roller 32. Therefore, when the motor 35 rotates, it drives the gear directly connected to its output shaft to rotate. Since the gear on the rear of the output shaft is connected to the gear outside the shaping roller 32 via a chain, the rotation of the motor 35 drives the shaping roller 32 to rotate. Figure 5 As shown.

[0073] In the specific implementation process, the pre-shaped steel strand is passed between two shaping rollers 32 and positioned in a groove outside one of the shaping rollers 32, such as... Figure 7As shown, the control motor 35 then drives another shaping roller 32 to rotate. Since the outer side of the shaping roller 32 is equipped with a collar 33 with extrusion balls 34, and the extrusion balls 34 are of different sizes, when the motor 35 drives the shaping roller 32 to rotate, it can drive the extrusion balls 34 to strike the straightened steel strand, thereby loosening the steel wires inside the steel strand (which were originally in a taut state). This causes the steel wires inside the steel strand to recombine, thereby preventing the shaped steel strand from deforming under the action of internal stress. In this way, not only can the stability of the steel strand be guaranteed, but also the steel strand can maintain good stability when subjected to external force.

[0074] Example 2

[0075] Based on Example 1, this application's embodiment effectively solves the technical problem that existing cable laying steel strand support devices are cumbersome to straighten and all use rigid straightening during use. The overall idea is as follows:

[0076] A bracket 2 is installed on the top of the fixing plate 1, and the bracket 2 corresponds to the front and rear of the extrusion part 3. It is used to perform preliminary straightening of the steel strand, so as to cooperate with the extrusion part 3 to facilitate and stably straighten the steel strand. Furthermore, this application is not limited to this structure, and any structure with the same function can be used, which will not be elaborated here.

[0077] The bracket 2 has two gravity guide rollers 5 that fit together on top. By squeezing the bent steel strand in the direction of compression, the steel strand is bent in the opposite direction, thus restoring its original shape.

[0078] In some examples, one of the gravity guide rollers 5 is fitted with an air bladder, and the air bladder is in an inflated state, such as... Figure 8 As shown;

[0079] The airbag has a valve core on its outside, and the airbag can be inflated through the valve core. The inflation state and degree of the airbag can be freely adjusted, which facilitates the compression of the steel strand and thus straightens the steel strand.

[0080] In the specific implementation process, the steel strand that needs to be straightened is passed through two gravity guide rollers 5, and the steel strand that was originally bent downwards is aligned with the bottom gravity guide roller 5. At this time, the air bladder outside the bottom gravity guide roller 5 squeezes the steel strand upwards, causing the steel strand that was originally bent downwards to bend upwards, thereby straightening the steel strand, which makes it convenient for the subsequent extrusion part 3 to hammer the steel strand.

[0081] Example 3

[0082] Based on Example 2, this application embodiment effectively solves the technical problem that the steel strands in existing cable laying steel strand support devices are prone to shaking or shifting during use. The overall idea is as follows:

[0083] The top of the fixing plate 1 is equipped with a guide part 4, and the guide part 4 is located on the side of the extrusion part 3 away from the bracket 2. It is used to limit the range of motion of the steel strand, prevent the position of the steel strand after straightening from shifting, or affect the straightening of the extrusion part 3 during the pulling process, and improve the stability and safety of straightening.

[0084] The guide section 4 includes a guide cylinder 41 and connecting rods 42 connected to both sides of the guide cylinder 41. The guide cylinder 41 is connected to the top of the fixing plate 1 through the connecting rods 42, so that the guide cylinder 41 corresponds to the extrusion section 3 and is installed on the fixing plate 1.

[0085] In some examples, two closely fitting pulleys are installed inside the guide cylinder 41, and limit grooves are provided at corresponding positions of the two pulleys, so as to squeeze the straightened steel strand between the two pulleys and transport it outward;

[0086] When the two pulleys are in contact, the limiting grooves are connected to each other, and the steel strand passes through the limiting grooves, thereby restricting the steel strand within the limiting grooves and preventing it from moving.

[0087] In some examples, the steel strand passes sequentially before the two gravity guide rollers 5, between the extrusion section 3, and through the guide cylinder 41, thereby sequentially performing preliminary straightening, hammer straightening, and outward conveying.

[0088] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A cable laying steel strand support device, characterized in that, The support device includes: A fixed plate (1); An extrusion part (3), which is installed on the fixed plate (1) and used for straightening the steel strand; Among them, the extrusion part (3) includes two shaping rollers (32) that correspond to each other up and down and are in contact with each other. An annular groove is formed on the outer surface of one of the shaping rollers (32), and when straightening, the steel strand is located in the groove; On the outer surface of the other shaping roller (32), there are multiple extrusion balls (34) with different diameters, and the multiple extrusion balls (34) are distributed around the outer circle of the shaping roller (32) in a surrounding manner; The shaping roller (32) is driven to rotate by a motor (35). When the shaping roller (32) rotates, the extrusion balls (34) correspond to the groove.

2. The cable laying steel strand support device as described in claim 1, characterized in that: The extrusion part (3) further includes a connecting frame (31), and the connecting frame (31) has a "U" - shaped structure with an upward opening; Among them, the two shaping rollers (32) are both installed in the opening of the connecting frame (31); The connecting frame (31) is installed on the top of the fixed plate (1) in an embedded manner.

3. The cable laying steel strand support device as described in claim 1, characterized in that: A collar (33) is sleeved on the outer surface of one of the shaping rollers (32) and corresponds to the groove on the outer surface of the other shaping roller (32); Among them, a receiving groove is formed on the outer wall of the collar (33), and the extrusion balls (34) are embedded in the receiving groove and are connected to the inner bottom surface of the receiving groove through springs.

4. The cable laying steel strand support device as described in claim 2, characterized in that: The motor (35) is installed inside the connecting frame (31), and the shaping roller (32) with the extrusion balls (34) is driven to rotate by the motor (35); Among them, a connecting chain (36) is provided on the output shaft of the motor (35) and the end of the shaping roller (32), and the motor (35) drives the shaping roller (32) to rotate through the connecting chain (36).

5. The cable laying steel strand support device as described in claim 4, characterized in that: The connecting chain (36) includes two gears and a chain sleeved on the two gears; Among them, the two gears are respectively arranged on the output shaft of the motor (35) and the end of the shaping roller (32).

6. The cable laying steel strand support device as described in claim 1, characterized in that: A bracket (2) is installed on the top of the fixed plate (1), and the bracket (2) corresponds to the extrusion part (3) front and back and is used for initially straightening the steel strand; Among them, two mutually contacting gravity - guiding rollers (5) are installed on the top of the bracket (2).

7. A cable laying steel strand support device as described in claim 6, characterized in that: An airbag is sleeved on the outer surface of one of the gravity - guiding rollers (5), and the airbag is in an inflated state; Among them, a valve core is provided on the outer surface of the airbag, and the airbag can be inflated through the valve core.

8. The cable laying steel strand support device as described in claim 6, characterized in that: A guiding part (4) is installed on the top of the fixed plate (1), and the guiding part (4) is located on the side of the extrusion part (3) away from the bracket (2) and is used for restricting the movement range of the steel strand; Among them, the guiding part (4) includes a guiding cylinder (41) and connecting rods (42) connected to both sides of the guiding cylinder (41), and the guiding cylinder (41) is connected to the top of the fixed plate (1) through the connecting rods (42).

9. A cable laying steel strand support device as described in claim 8, characterized in that: Two mutually contacting pulleys are installed inside the guiding cylinder (41), and limiting grooves are formed at the positions where the two pulleys correspond to each other; Among them, when the two pulleys are in contact, the limiting grooves are connected to each other, and the steel strand passes through the limiting grooves.

10. A cable laying steel strand support device as described in claim 8, characterized in that: The steel strand passes sequentially before the two gravity guide rollers (5), between the extrusion section (3), and through the guide cylinder (41).

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