A wire reel brake device

Abstract

The application relates to the cable winding and unwinding technology field and discloses a wire reel brake device which comprises a base, an inclined hand push rod fixedly installed at the top end of the base, a plurality of groups of rollers installed at the bottom end of the base, a fixed plate fixedly installed at the top end of the base, an adjusting plate fixedly installed on the inner side of the fixed plate through bolts, an arc-shaped plate fixedly connected to the front end of the adjusting plate, a groove arranged at the front end of the arc-shaped plate, insulating rubber skins fixedly installed in the groove, and first fixing blocks fixedly installed on the two inner sides of the groove. The wire reel brake device is characterized in that the arc-shaped plate is arranged at the front end of the adjusting plate, the insulating rubber skins and the rotatable clamping plates are fixedly arranged in the groove at the front end of the arc-shaped plate, the base is pushed into the lower side of the wire reel, the insulating rubber skins and the clamping plates in the arc-shaped plate force the wire reel to stop rotating in time, and the problem that the wire is scattered out of the wire reel due to the fact that the wire reel is still rapidly rotating when the front wire is suddenly stopped due to a fault or a traction joint.

Description

Technical Field

[0001] This invention relates to the field of cable winding and unwinding technology, specifically to a cable reel braking device. Background Technology

[0002] Power cables are cables used to transmit and distribute electrical energy. They are commonly used in urban underground power grids, power plant lead-out lines, internal power supply for industrial and mining enterprises, and underwater transmission lines across rivers and seas. The proportion of cables in power lines is gradually increasing. Power cables are cable products used to transmit and distribute high-power electrical energy in the main lines of the power system, including power cables of various voltage levels from 1 to 500KV and above, and various types of insulation.

[0003] When laying conductors and ground wires on 220V and above power lines, since the reel does not have a fixed braking device, there may be a situation where the reel is running normally, and the wire pulling suddenly encounters a fault or stops at the traction joint, while the reel is still running rapidly, which may cause the wire to spill out of the reel. If the person in charge of the reel cannot deal with the situation in time and the signal transmission is not timely, and the traction machinery in front starts to pull at this time, the wire will often be damaged, or even an accident may occur. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a reel braking device, which has the advantages of being able to force the reel to stop rotating in a timely manner. This solves the problem that when the lead wire suddenly encounters a fault or stops at the traction joint, the reel is still rotating rapidly, causing the wire to spill out of the reel.

[0005] This invention provides the following technical solution: a coil brake device, comprising a base and an inclined push rod fixedly installed at the top of the base. Multiple sets of rollers are installed at the bottom of the base, and a fixing plate is fixedly installed at the top of the base. An adjusting plate is fixedly installed on the inner side of the fixing plate by bolts. An arc-shaped plate is fixedly connected to the front end of the adjusting plate. A groove is provided at the front end of the arc-shaped plate, and an insulating rubber sheet is fixedly installed inside the groove. First fixing blocks are symmetrically fixedly installed on the two inner sides of the groove. A pressure block is rotatably installed inside the first fixing block via a first rotating shaft. Second fixing blocks are symmetrically fixedly installed on the two sides of the groove near the insulating rubber sheet. A rotating plate is rotatably installed inside the second fixing block via a second rotating shaft. A clamping plate is fixedly installed at the end of the rotating plate away from the pressure block.

[0006] Preferably, there are two sets of fixing plates, which are symmetrically arranged on the top surface of the base along the transverse central axis. Both the adjusting plate and the fixing plate are provided with several sets of threaded grooves, which are locked and positioned by bolts.

[0007] Preferably, a sleeve is fixedly installed on the end face of the base, and a connecting tube is connected inside the sleeve by a torsion spring, with brake blocks connected to both ends of the connecting tube.

[0008] Preferably, the brake block is made of rubber and is detachably fixed to both ends of the connecting pipe by screws.

[0009] Preferably, the adjusting plates are provided in two sets, and are respectively fixed to the opposite inner sides of the fixing plate by bolts, and the front ends of the two sets of adjusting plates are fixedly connected to the back of the same arc-shaped plate.

[0010] Preferably, the first fixing block is symmetrically fixedly installed on the upper and lower sides of the groove of the arc plate near the outer edge, and a rotatable first rotating shaft runs through it, with a pressure block fixedly sleeved on the outer wall of the first rotating shaft.

[0011] Preferably, the side of the pressure block closest to the center of the arc-shaped plate is inclined, and its width is greater than the width of the first fixing block.

[0012] Preferably, the second fixing block is symmetrically fixedly installed on the side of the arc-shaped plate groove near the insulating rubber skin, and a second rotating shaft is fixedly inserted inside. The rotating plate axis is rotatably inserted through the second rotating shaft, and the end near the pressure block is located on the back of the pressure block.

[0013] Preferably, the clamping plate is arc-shaped, and the outer wall near the center of the arc-shaped plate has rubber protrusions arranged in an array.

[0014] Preferably, a gap is provided between the end of the rotating plate near the pressure block and the first fixed block, a gap is provided between the first rotating shaft and the inner wall of the groove of the arc plate for the rotating plate to rotate, a sliding groove is provided on the back of the rotating plate, and a telescopic cylinder is fixedly installed on the inner wall of the groove of the arc plate corresponding to the position of the sliding groove. The two ends of the telescopic cylinder are connected to the same spring, and the outer wall of the front end is slidably located inside the sliding groove. The telescopic cylinder is two hollow cylinders that are nested together.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. By setting an adjustable length fixed plate and adjustment plate at the top of the base, the braking device can adjust the braking height according to the height of the coil. An arc-shaped plate is set at the front end of the adjustment plate, and an insulating rubber sheet and a rotatable clamping plate are fixed inside the groove at the front end of the arc-shaped plate. When the coil needs to stop, the base can be pushed into the lower side of the coil, and the insulating rubber sheet and clamping plate inside the arc-shaped plate can be used to force the coil to stop rotating in time. This solves the problem that if the front wire suddenly encounters a fault or stops at the traction joint, the coil will still be rotating rapidly, causing the wire to spill out of the coil.

[0017] 2. By setting a sleeve on the end face of the base and setting a connecting pipe that can be reset by a torsion spring inside the sleeve, and detachably connecting brake blocks at both ends of the connecting pipe, the operator can step on the brake block with his foot after the base is pushed into the lower side of the spool, so that it rotates downward and fits against the ground, which plays a role in preventing slippage and preventing the arc plate from moving backward due to the rotation of the spool when braking the spool, thus failing to play a braking role.

[0018] 3. By setting a rotatable clamping plate inside the arc-shaped plate, the rotating plate is forced to rotate by the pressure block pushed by the wire spool, thereby driving the clamping plate to move to both sides of the wire spool until the wire spool is clamped. This structure can be used with insulating rubber to allow the arc-shaped plate to decelerate and brake on three sides of the wire spool, quickly forcing the wire spool to stop rotating, thus improving the braking efficiency of the wire spool. Attached Figure Description

[0019] Figure 1 This is a three-dimensional schematic diagram of the braking device of the present invention;

[0020] Figure 2 This is a side perspective three-dimensional schematic diagram of the braking device of the present invention;

[0021] Figure 3 This is a side view of the braking device of the present invention;

[0022] Figure 4 This is a three-dimensional schematic diagram of the clamping plate of the present invention;

[0023] Figure 5 This is a schematic diagram of the back of the clamping plate of the present invention;

[0024] Figure 6 The structure of this invention Figure 1 A magnified view of part A in the diagram;

[0025] Figure 7 This is a schematic cross-sectional view of the sleeve structure of the present invention;

[0026] Figure 8 This is a schematic cross-sectional view of the arc-shaped plate of the present invention;

[0027] Figure 9 This is a cross-sectional schematic diagram of the rotating plate inside the arc-shaped plate of the present invention;

[0028] Figure 10 The structure of this invention Figure 9 A magnified view of part B in the diagram.

[0029] The components are as follows: 1. Base; 2. Push rod; 3. Roller; 4. Fixing plate; 5. Adjusting plate; 6. Arc plate; 7. Insulating rubber sheet; 8. First fixing block; 9. First rotating shaft; 10. Pressure block; 11. Second fixing block; 12. Second rotating shaft; 13. Rotating plate; 14. Clamping plate; 15. Sleeve; 16. Connecting pipe; 17. Brake block; 18. Protrusion; 19. Telescopic cylinder; 20. Spring. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Please see Figure 1-10 A reel brake device includes a base 1 and an inclined push rod 2 fixedly mounted on the top of the base 1. Multiple sets of rollers 3 are mounted on the bottom of the base 1. A fixing plate 4 is fixedly mounted on the top of the base 1. An adjusting plate 5 is fixedly mounted on the inner side of the fixing plate 4 by bolts. An arc-shaped plate 6 is fixedly connected to the front end of the adjusting plate 5. A groove is provided at the front end of the arc-shaped plate 6, and an insulating rubber sheet 7 is fixedly mounted inside the groove. First fixing blocks 8 are symmetrically fixedly mounted on the two inner sides of the groove. A pressure block 10 is rotatably mounted inside the first fixing block 8 by a first rotating shaft 9. Second fixing blocks 11 are symmetrically fixedly mounted on the two sides of the groove near the insulating rubber sheet 7. A rotating block 10 is rotatably mounted inside the second fixing block 11 by a second rotating shaft 12. The rotating plate 13 has a clamping plate 14 fixedly installed at one end away from the pressure block 10. By setting an adjustable length fixed plate 4 and an adjusting plate 5 at the top of the base 1, the braking device can adjust the braking height according to the height of the coil. An arc plate 6 is set at the front end of the adjusting plate 5, and an insulating rubber sheet 7 and a rotatable clamping plate 14 are fixedly set inside the groove at the front end of the arc plate 6. When the coil needs to stop, the base 1 can be pushed into the lower side of the coil. The insulating rubber sheet 7 and the clamping plate 14 inside the arc plate 6 can force the coil to stop rotating in time. This solves the problem that the coil is still rotating rapidly when the front wire encounters a sudden fault or stops at the traction joint, causing the wire to spill out of the coil.

[0032] Please see Figure 1-2The adjusting plate 5 is fixed to the inner side of the symmetrically arranged fixed plate 4 with bolts. When braking the spool, several sets of threaded grooves are set through the adjusting plate 5 and the fixed plate 4, so the position of the adjusting plate 5 on the fixed plate 4 can be adjusted by removing and installing bolts. This adjusts the distance between the arc plate 6 at the front end of the adjusting plate 5 and the base, allowing the arc plate 6 to adjust its contact position with the spool according to the height of the spool, thus better braking the spool.

[0033] Please see Figure 2 and Figure 7 A sleeve 15 is fixedly installed on the end face of the base 1, and a torsion spring is set in the sleeve 15 to connect with the connecting pipe 16, so that the connecting pipe 16 can rotate inside the sleeve 15 and be reset by the torsion spring after the external force is removed. This is convenient for repeated use. When in use, after the base 1 is pushed into the lower side of the wire reel, the operator can step on the brake block 17 with his foot to make it rotate downward and fit against the ground, which plays a role in anti-slip and prevents the arc plate 6 from moving backward due to the rotation of the wire reel when braking the wire reel, thus failing to play a braking role.

[0034] Please see Figure 2 and Figure 7 The rubber brake block 17 increases the friction with the ground, providing excellent anti-slip properties. It is also detachably fixed to both ends of the connecting pipe 16 with screws, making it easy to replace after wear.

[0035] Please see Figure 1-2 , Figure 6 as well as Figure 8-10 A rotatable first rotating shaft 9 is inserted into the first fixed block 8, which is symmetrically installed on the upper and lower sides. This allows the first rotating shaft 9 to drive the pressure block 10, which is fixedly connected to its outer wall, to rotate between the first fixed blocks 8. As a result, the pressure block 10 rotates under the push of the wire reel and pushes the rotating plate on the back of the pressure block 10 to rotate, thereby driving the clamping plate 14 to move and clamp the wire reel.

[0036] Please see Figure 6 The pressure block 10 is tilted on the side closest to the center of the arc plate 6. This allows the coil to slide on the tilted surface of the pressure block 10 when it is being restricted, thus pushing the pressure block 10 to drive the clamping plate 14 to move more smoothly. This facilitates the coil's movement inside the arc plate 6. The width of the pressure block 10 is set to be greater than the width of the first fixing block 8, so that the rotating plate 13 can be pushed to rotate when the pressure block 10 rotates.

[0037] Please see Figure 2 and Figure 4The second rotating shaft 12 is fixedly inserted inside the second fixing block 11, which is symmetrically installed on the upper and lower sides. The second rotating shaft 12 is rotatably sleeved on the outer wall of the rotating plate 13 at the axis position, so that the rotating plate 13 can rotate around the second rotating shaft 12 as the center. The pressure block 10 is also driven to rotate at the back of the pressure block 10, thereby driving the clamping plate 14 to clamp the coil.

[0038] Please see Figure 4 and Figure 6 Rubber protrusions 18 are arranged in an array on the outer wall of the clamping plate 14 near the center of the arc plate 6. These protrusions can reduce the speed of the coil by friction when the clamping plate 14 clamps the coil. Together with the insulating rubber skin 7, the coil can be quickly decelerated and stopped rotating.

[0039] Please see Figure 4-6 and Figure 8-10 A gap is provided between the end of the rotating plate 13 near the pressure block 10 and the first fixed block 8, and a gap is provided between the first rotating shaft 9 and the inner wall of the groove of the arc plate 6 to allow the rotating plate 13 to rotate. This allows the rotating plate 13 to have sufficient rotation space when the coil pushes the pressure block 10 to rotate, preventing motion interference and preventing the coil from being clamped and decelerated. A sliding groove is provided on the back of the rotating plate 13, and a telescopic cylinder 19 is connected inside the sliding groove. The telescopic cylinder 19 consists of two hollow cylinders that are nested together. When the pressure block 10 pushes the rotating plate 13 to rotate, it can compress the telescopic cylinder 19 and the spring 20 inside it. The front end of the telescopic cylinder 19 slides inside the sliding groove. When the coil leaves the arc plate 6, the rotating plate 13 is pushed outward by the spring 20 to reset it. This can be repeated. This structure can achieve the function of automatically resetting the rotating plate 13 and the pressure block 10 after rotation.

[0040] During use, depending on the height of the spool, remove and install the bolts connecting the fixing plate 4 and the adjusting plate 5, adjust the position between the adjusting plate 5 and the fixing plate 4, and after adjustment, push the push lever 2 to push the base 1 towards the spool via the roller 3 at the bottom. When the spool enters the arc plate 6, the user steps on the brake block 17 to make it rotate downwards and fit against the ground, which provides anti-slip for the base 1 and prevents it from moving backwards due to the rotation of the spool. The brake block 17 can be reset by the torsion spring after the user removes their foot. After the spool enters the arc plate 6, it first contacts the pressure block 10 and pushes the pressure block 10 to rotate around the first rotating shaft 9. Simultaneously, the rotation drives the rotating plate 13 on the back of the pressure block 10... The end rotates around the second pivot 12, causing the clamping plate 14 connected to the other end of the rotating plate 13 to move towards the outer wall of the coil until the coil is clamped. At this time, the telescopic cylinder 19 on the back of the rotating plate 13 retracts, and its front end slides inside the groove on the back of the rotating plate 13. The spring 20 inside the telescopic cylinder 19 is compressed. Under the action of the insulating rubber skin 7 and the rubber material on the outer wall of the clamping plate 14, the rotating coil is decelerated, forcing the coil to stop rotating, thus acting as a brake. When the coil disengages from the arc plate 6, the coil disengages from the pressure block 10. Under the action of the spring 20, the rotating plate 13 is pushed to rotate in the opposite direction to reset. The pressure block 10 in contact with the rotating plate 13 is pushed to reset, and this cycle continues.

[0041] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A coil brake device, comprising a base (1) and an inclined push rod (2) fixedly mounted on the top of the base (1), wherein a plurality of rollers (3) are mounted on the bottom of the base (1), characterized in that: A fixing plate (4) is fixedly installed at the top of the base (1). An adjusting plate (5) is fixedly installed on the inner side of the fixing plate (4) by bolts. An arc plate (6) is fixedly connected to the front end of the adjusting plate (5). A groove is provided at the front end of the arc plate (6), and an insulating rubber sheet (7) is fixedly installed inside the groove. A first fixing block (8) is symmetrically fixedly installed on the two inner sides of the groove. A pressure block (10) is rotatably installed inside the first fixing block (8) by a first rotating shaft (9). A second fixing block (11) is symmetrically fixedly installed on the two sides of the groove near the insulating rubber sheet (7). A rotating plate (13) is rotatably installed inside the second fixing block (11) by a second rotating shaft (12). A clamping plate (14) is fixedly installed at the end of the rotating plate (13) away from the pressure block (10). The pressure block (10) is inclined on the side near the center of the arc plate (6), and its width is greater than the width of the first fixing block (8); The clamping plate (14) is arc-shaped, and the outer wall near the center of the arc plate (6) is arrayed with rubber protrusions (18). After the coil enters the interior of the arc plate (6), it first contacts the pressure block (10) and pushes the pressure block (10) to rotate around the first rotating shaft (9). While rotating, it drives one end of the rotating plate (13) on the back of the pressure block (10) to rotate around the second rotating shaft (12), so that the clamping plate (14) connected to the other end of the rotating plate (13) moves toward the outer wall of the coil until the coil is clamped.

2. The coil brake device according to claim 1, characterized in that: The fixing plate (4) is provided in two sets and is symmetrically arranged on the top surface of the base (1) along the transverse central axis. The adjusting plate (5) and the fixing plate (4) are both provided with several sets of threaded grooves, which are locked and positioned by bolts.

3. The coil brake device according to claim 1, characterized in that: A sleeve (15) is fixedly installed on the end face of the base (1). A connecting pipe (16) is connected inside the sleeve (15) by a torsion spring. Brake blocks (17) are connected to both ends of the connecting pipe (16).

4. A coil brake device according to claim 3, characterized in that: The brake block (17) is made of rubber and is detachably fixed to both ends of the connecting pipe (16) by screws.

5. A coil brake device according to claim 2, characterized in that: The adjustment plate (5) is provided in two sets, and is fixed to the opposite inner side of the fixing plate (4) by bolts respectively. The front ends of the two sets of adjustment plates (5) are fixedly connected to the back of the same arc plate (6).

6. A coil brake device according to claim 1, characterized in that: The first fixing block (8) is symmetrically fixedly installed on the groove of the arc plate (6) near the edge, and a rotatable first rotating shaft (9) runs through it. A pressure block (10) is fixedly sleeved on the outer wall of the first rotating shaft (9).

7. A coil brake device according to claim 1, characterized in that: The second fixing block (11) is symmetrically fixed on the side of the groove of the arc plate (6) near the insulating rubber skin (7), and the second rotating shaft (12) is fixedly inserted inside. The rotating plate (13) is rotatably inserted through the second rotating shaft (12), and the end near the pressure block (10) is located on the back of the pressure block (10).

8. A coil brake device according to claim 1, characterized in that: A gap is provided between the end of the rotating plate (13) near the pressure block (10) and the first fixed block (8). A gap is provided between the first rotating shaft (9) and the inner wall of the groove of the arc plate (6) for the rotating plate (13) to rotate. A sliding groove is provided on the back of the rotating plate (13). A telescopic cylinder (19) is fixedly installed on the inner wall of the groove of the arc plate (6) corresponding to the position of the sliding groove. The two ends of the telescopic cylinder (19) are connected to the same spring (20), and the outer wall of the front end is slidably located inside the sliding groove. The telescopic cylinder (19) consists of two hollow cylinders that are nested together.

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