Double-screw mechanical adjusting disc type braking device and method thereof

Abstract

The invention discloses a double-screw mechanical adjusting disc type braking device and a method thereof, and belongs to the technical field of pay-off rack braking, the double-screw mechanical adjusting disc type braking device comprises a shifting fork plate, and the shifting fork plate is concentrically provided with a pay-off rack in a rotating mode through an intermediate transmission shaft; a brake disc is in concentric butt joint with the middle transmission shaft at the end, away from the shifting fork plate, of the pay-off rack, a mechanical brake seat is installed beside the brake disc, two tension rods distributed on the front side and the rear side of the brake disc are movably installed in the mechanical brake seat, and brake blocks located on the front side and the rear side of the brake disc are installed on each tension rod. The distance between the two sets of brake blocks is changed by adjusting the opening size of the two tension rods at the same time through one screw rod, and when the distance between the two sets of brake blocks is reduced, braking of the brake disc can be completed. According to the double-screw mechanical adjusting disc type brake device, the mechanical brake structure is additionally arranged, the pay-off rack rotating at a high speed can be braked, the structure is simple, operation is easy, and the use safety of equipment is greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of pay-off frame braking, and specifically relates to a double-screw mechanical adjustment disc brake device and method thereof. Background Art

[0002] A pay-off frame is a mechanical device used to support and guide the pay-off of cable reels, and is widely used in the fields of power construction and cable laying. It plays a key role in the cable laying process, being able to smoothly release the cable and avoid cable damage caused by improper operation.

[0003] Currently, other rotating devices such as pay-off frames still rely on manual operation to achieve braking. For some medium and large-sized pay-off frames, their speeds are too fast and their rotational inertia is large, making it impossible to achieve the manual braking effect by relying solely on manpower, and there are also certain safety hazards during braking. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a double-screw mechanical adjustment disc brake device and method thereof. By adding the above mechanical braking structure, this double-screw mechanical adjustment disc brake device can brake a high-speed rotating pay-off frame. During braking, only the screw needs to be rotated to quickly complete braking. Its structure is simple and the operation is easy, greatly improving the safety of equipment use.

[0005] The technical solution of the present invention is implemented as follows:

[0006] A double-screw mechanical adjustment disc brake device includes a fork plate, and the fork plate rotates concentrically with a pay-off frame through an intermediate transmission shaft;

[0007] A brake disc is concentrically butted on the intermediate transmission shaft at the end of the pay-off frame far from the fork plate. A mechanical brake seat is installed beside the brake disc. Two tension rods distributed on the front and rear sides of the brake disc are movably installed in the mechanical brake seat, and brake blocks located on the front and rear sides of the brake disc are installed on each tension rod;

[0008] The opening sizes of the two tension rods are simultaneously adjusted by a screw rod between the two tension rods to change the distance between the two groups of brake blocks. When the distance between the two groups of brake blocks is reduced, braking of the brake disc can be completed.

[0009] Adopting the above solution, this double-screw mechanical adjustment disc brake device can brake a high-speed rotating pay-off frame by adding the above mechanical braking structure. During braking, only the screw needs to be rotated to quickly complete braking. Its structure is simple and the operation is easy, greatly improving the safety of equipment use.

[0010] As a preferred embodiment of the double-screw mechanical adjustment disc brake device, the screw rod is penetrated and fitted on the tension rod at the front side of the brake disc, and the rod head of the screw rod can abut against the other tension rod;

[0011] Among them, the rod head of the screw is a round head with an arc surface.

[0012] Adopting the above solution, in order to achieve the simultaneous movement of two tension rods, the screw is installed on one of the tension rods, and the two tension rods are simultaneously driven to move by relying on the thread of the screw; the contact area between the round-headed screw and the tension rod is relatively small when they are in contact, making it more labor-saving to rotate the screw.

[0013] As a preferred embodiment of a double-screw mechanical adjustment disc brake device, a rotating seat is connected to the inner side of the tension rod. The tension rod rotatably connects the rotating seat and the mechanical brake seat through a rotating shaft at the same time, so that the tension rod can rotate around the rotating shaft.

[0014] Adopting the above solution, in order to adjust the opening size of the tension rod, the middle section of the tension rod is rotated by a rotating shaft. When the screw contacts the tension rod, the lever principle is used to change the opening size of the two tension rods.

[0015] As a preferred embodiment of a double-screw mechanical adjustment disc brake device, a return spring that simultaneously inhibits the two groups of brake blocks from moving towards each other is sleeved at the location of the rotating shaft.

[0016] Adopting the above solution, in order to prevent the brake blocks from interfering with the normal rotation of the brake disc, a return spring is used to simultaneously inhibit the two tension rods, thereby preventing the two groups of brake blocks from moving towards each other.

[0017] As a preferred embodiment of a double-screw mechanical adjustment disc brake device, the side surface of the brake block in contact with the brake disc is provided with a friction block containing copper and without asbestos. The brake block is fixedly installed on the tension rod under the cooperation of a bolt and a nut.

[0018] Adopting the above solution, in order to facilitate the disassembly of the brake block, when the brake block is worn after long-term use, the brake block can be easily replaced after disassembling the bolt and the nut.

[0019] As a preferred embodiment of a double-screw mechanical adjustment disc brake device, two mechanical brake seats are provided in total. The two mechanical brake seats are respectively fixedly installed on the positioning plate, and the two mechanical brake seats are symmetrically distributed with respect to the brake disc. The positioning plate is fixedly installed on the side surface of the wire pay-off frame.

[0020] Adopting the above solution, in order to facilitate quick braking, two mechanical brake seats are used for braking. The staff can operate with both hands at the same time, which is convenient for braking the wire pay-off frame faster.

[0021] As a preferred embodiment of a double-screw mechanical adjustment disc brake device, the intermediate transmission shaft is driven to rotate by a motor through a coupling.

[0022] With the above solution, in order to drive the pay-off reel to rotate, the motor drives the coupling to drive the intermediate transmission shaft to rotate, and finally drives the pay-off reel to rotate, so that the cable can be wound or released.

[0023] As a preferred embodiment of the double-screw mechanical adjustment disc brake device, a fork shaft is movably installed on the fork plate, and a limit groove for cooperating with the fork shaft is provided on the side of the pay-off reel. When the fork shaft is assembled in the limit groove, the pay-off reel can be locked.

[0024] With the above solution, in order to lock the pay-off reel, the cooperation of the fork shaft and the limit groove can be used to lock the pay-off reel, thereby ensuring the stability of the pay-off reel when it is not working.

[0025] A double-screw mechanical adjustment disc braking method is implemented by using the above double-screw mechanical adjustment disc brake device, and the steps are as follows:

[0026] S1. When the electric braking unit cannot perform braking work due to a fault light, at this time the pay-off reel is still rotating, and the staff can choose the mechanical brake seat to perform mechanical braking on the brake disc;

[0027] S2. The staff can rotate the two screws simultaneously with both hands, and use the screws to abut against the tension rods, so that the two tension rods rotate simultaneously around the rotating shaft;

[0028] 3S. Subsequently, the distance between the two groups of brake blocks continuously decreases, and finally the brake disc can be quickly braked through the brake blocks, and then the pay-off reel can be braked;

[0029] S4. When the pay-off reel is stable, insert the fork shaft on the fork plate into the limit groove on the side of the pay-off reel to lock the pay-off reel.

[0030] After adopting the above technical solution, the beneficial effects of the present invention are:

[0031] 1. By adding the above mechanical braking structure, the double-screw mechanical adjustment disc brake device can brake the high-speed rotating pay-off reel. When braking, only need to rotate the screw to quickly complete the braking. Its structure is simple and the operation is simple, which greatly improves the safety of equipment use;

[0032] 2. In order to make the two tension rods act simultaneously, the screw is installed on one of the tension rods, and the two tension rods are simultaneously driven to act by relying on the thread of the screw; the contact area between the round-headed screw and the tension rod is small when they abut, and it is more labor-saving to rotate the screw;

[0033] 3. In order to adjust the opening size of the tension rod, the middle section of the tension rod is rotated by a rotating shaft. When the screw rod contacts the tension rod, the opening size of the two tension rods is changed by the lever principle.

[0034] 4. In order to prevent the brake pads from interfering with the normal rotation of the brake disc, a return spring is used to simultaneously suppress the two tension rods, thereby preventing the two sets of brake pads from moving toward each other;

[0035] 5. To facilitate the removal of brake pads, which will wear out after long-term use, the bolts and nuts can be removed during replacement to easily complete the replacement of the brake pads.

[0036] 6. In order to facilitate quick braking, two mechanical brake seats are used for braking. The staff can use both hands to operate at the same time, so as to complete the braking of the pay-off stand faster;

[0037] 7. In order to realize the driving rotation of the pay-off frame, the motor drives the coupling to drive the intermediate transmission shaft to rotate, and finally drives the pay-off frame to rotate, so that the cable can be reeled in or released;

[0038] 8. In order to lock the pay-off stand, the fork shaft and the limit groove are used to lock the pay-off stand, thereby ensuring the stability of the pay-off stand when not working. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0040] Figure 1 The three-dimensional structure of the present invention when applied to the pay-off frame Figure 1 ;

[0041] Figure 2 The three-dimensional structure of the present invention when applied to the pay-off frame Figure 2 ;

[0042] Figure 3 For display Figure 1 A three-dimensional structural diagram of the internal structure;

[0043] Figure 4 It is a three-dimensional structural diagram of the present invention;

[0044] Figure 5 To hide Figure 4 The three-dimensional structure behind the middle brake disc;

[0045] Figure 6 forFigure 5 Stereoscopic structure diagram of the mechanical brake seat

[0046] Figure 7 For showing Figure 6 Stereoscopic structure diagram of the internal structure

[0047] Markings in the figure: 1 - fork plate; 2 - intermediate transmission shaft; 3 - wire pay - out frame; 4 - brake disc; 5 - mechanical brake seat; 6 - tension rod; 7 - brake block; 8 - screw; 9 - rotating seat; 10 - rotating shaft; 11 - return spring; 12 - bolt; 13 - nut; 14 - positioning plate; 15 - coupling; 16 - fork shaft; 17 - limit groove Specific implementation manners

[0048] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention

[0049] As Figures 1 to 7 shown, a double - screw mechanical adjustment disc brake device includes a fork plate 1, and the fork plate 1 rotates concentrically with a wire pay - out frame 3 through an intermediate transmission shaft 2; on the intermediate transmission shaft 2 at the end of the wire pay - out frame 3 away from the fork plate 1, a brake disc 4 is concentrically butted. A mechanical brake seat 5 is installed beside the brake disc 4. Two tension rods 6 distributed on the front and rear sides of the brake disc 4 are movably installed in the mechanical brake seat 5. A brake block 7 located on the front and rear sides of the brake disc 4 is installed on each tension rod 6; between the two tension rods 6, the opening size of the two tension rods 6 is adjusted simultaneously by a screw 8 to change the distance between the two groups of brake blocks 7. When the distance between the two groups of brake blocks 7 shrinks, the braking of the brake disc 4 can be completed. By adding the above - mentioned mechanical brake structure, the double - screw mechanical adjustment disc brake device can brake the wire pay - out frame 3 rotating at high speed. When braking, only the screw 8 needs to be rotated to quickly complete the braking. Its structure is simple and the operation is easy, which greatly improves the safety of equipment use

[0050] As Figure 7 shown, the screw 8 is penetrated and matched with the tension rod 6 at the front - side position of the brake disc 4, and the rod head of the screw 8 can abut against the other tension rod 6; among them, the rod head of the screw 8 is a round head with an arc surface. In order to enable the two tension rods 6 to act simultaneously, the screw 8 is installed on one of the tension rods 6, and the two tension rods 6 are driven to act simultaneously by relying on the thread of the screw 8; among them, the contact area between the round - headed screw 8 and the tension rod 6 is small when they abut, and it is more labor - saving when rotating the screw 8

[0051] As Figure 7As shown, a rotating seat 9 is connected to the inner side of the tension rod 6. The tension rod 6 rotatably connects the rotating seat 9 and the mechanical brake seat 5 through a rotating shaft 10 at the same time, so that the tension rod 6 can rotate around the rotating shaft 10. In order to adjust the opening size of the tension rod 6, the middle section of the tension rod 6 is rotated by the rotating shaft 10. When the screw rod 8 abuts against the tension rod 6, the lever principle is used to change the opening size of the two tension rods 6.

[0052] As Figure 7 shown, a return spring 11 that simultaneously inhibits the two groups of brake blocks 7 from moving towards each other is sleeved at the location of the rotating shaft 10. In order to prevent the brake blocks 7 from interfering with the normal rotation of the brake disc 4, a return spring 11 is used to simultaneously inhibit the two tension rods 6, thereby preventing the two groups of brake blocks 7 from moving towards each other.

[0053] As Figure 7 shown, the side surface of the brake block 7 in contact with the brake disc 4 is provided with a friction block containing copper and asbestos-free. The brake block 7 is fixedly installed on the tension rod 6 under the cooperation of the bolt 12 and the nut 13. In order to facilitate the disassembly of the brake block 7, when the brake block 7 is worn after long-term use, the brake block 7 can be easily replaced after the bolt 12 and the nut 13 are disassembled.

[0054] As Figures 4 to 5 shown, two mechanical brake seats 5 are provided in total. The two mechanical brake seats 5 are respectively fixedly installed on the positioning plate 14, and the two mechanical brake seats 5 are symmetrically distributed about the brake disc 4. The positioning plate 14 is fixedly installed on the side surface of the wire pay-off rack 3. In order to facilitate rapid braking, two mechanical brake seats 5 are used for braking, and the staff can operate with both hands at the same time, which is convenient for quickly braking the wire pay-off rack 3.

[0055] As Figure 3 shown, the intermediate transmission shaft 2 is driven to rotate by the motor through the coupling 15. In order to drive the wire pay-off rack 3 to rotate, the motor drives the coupling 15 to drive the intermediate transmission shaft 2 to rotate, and finally drives the wire pay-off rack 3 to rotate, so that the cable can be wound or released.

[0056] As Figure 3 shown, a fork shaft 16 is movably installed on the fork plate 1, and a limit groove 17 for cooperating with the fork shaft 16 is formed on the side surface of the wire pay-off rack 3. When the fork shaft 16 is assembled in the limit groove 17, the wire pay-off rack 3 can be locked.

[0057] Adopting the above scheme, in order to lock the wire pay-off rack 3, the cooperation of the fork shaft 16 and the limit groove 17 can be used to lock the wire pay-off rack 3, thereby ensuring the stability of the wire pay-off rack 3 during non-working.

[0058] A double-screw mechanical adjustment disc braking method, which is implemented by using the above double-screw mechanical adjustment disc braking device, and the steps are as follows:

[0059] S1. When the electric braking unit fails to perform braking work due to a fault light, at this time, the pay-off reel 3 is still rotating, and the staff can select the mechanical braking seat 5 to perform mechanical braking on the brake disc 4;

[0060] S2. The staff can rotate the two screws 8 simultaneously with both hands, use the screws 8 to abut against the tension rods 6, so that the two tension rods 6 rotate simultaneously around the rotating shaft 10 respectively;

[0061] S3. Subsequently, the distance between the two groups of brake pads 7 continuously decreases, and finally the brake disc 4 can be quickly braked through the brake pads 7, thereby completing the braking of the pay-off reel 3;

[0062] S4. After the pay-off reel 3 is stable, insert the fork shaft 16 on the fork plate 1 into the limit groove 17 on the side of the pay-off reel 3, and the locking of the pay-off reel 3 can be realized.

[0063] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A double-screw mechanical adjustment disc brake device, including a fork plate, and a wire pay-off frame is rotatably connected concentrically with the fork plate through an intermediate transmission shaft; Characterized in that: A brake disc is coaxially butted on the intermediate transmission shaft at the end of the wire pay-off frame away from the fork plate. A mechanical brake seat is installed beside the brake disc. Two tension rods distributed on the front and rear sides of the brake disc are movably installed in the mechanical brake seat. Brake blocks located on the front and rear sides of the brake disc are installed on each tension rod; The distance between the two tension rods is adjusted simultaneously by a screw rod to change the distance between the two groups of brake blocks. When the distance between the two groups of brake blocks is reduced, the braking of the brake disc can be completed.

2. The double-screw mechanical adjustment disc brake device according to claim 1, characterized in that: The screw rod is penetrated and matched with the tension rod at the front side of the brake disc, and the rod head of the screw rod can abut against the other tension rod.

3. The double-screw mechanically adjustable disc brake device according to claim 2, wherein: The rod head of the screw rod is a round head with an arc surface.

4. The double-screw mechanically adjustable disc brake device according to claim 3, characterized in that: A rotating seat is connected to the inner side of the tension rod. The tension rod rotatably connects the rotating seat and the mechanical brake seat through a rotating shaft at the same time, so that the tension rod can rotate around the rotating shaft.

5. The double-screw mechanically adjustable disc brake device according to claim 4, characterized in that: A return spring that simultaneously inhibits the two groups of brake blocks from moving towards each other is sleeved at the location of the rotating shaft.

6. The twin-screw mechanically adjustable disc brake device according to claim 5, characterized in that: The side surface of the brake block in contact with the brake disc is provided with a friction block containing copper and asbestos-free. The brake block is fixedly installed on the tension rod under the cooperation of a bolt and a nut.

7. The double-screw mechanical adjustment disc brake device according to claim 6, characterized in that: Two mechanical brake seats are provided. The two mechanical brake seats are respectively fixedly installed on a positioning plate, and the two mechanical brake seats are symmetrically distributed with respect to the brake disc. The positioning plate is fixedly installed on the side surface of the wire pay-off frame.

8. The double-screw mechanical adjustment disc brake device according to claim 7, characterized in that: The intermediate transmission shaft is driven to rotate by a motor through a coupling.

9. The double-screw mechanically adjustable disc brake device according to claim 8, wherein: A fork shaft is movably installed on the fork plate. A limiting groove for cooperating with the fork shaft is formed on the side surface of the wire pay-off frame. When the fork shaft is assembled in the limiting groove, the locking of the wire pay-off frame can be realized.

10. A dual-screw mechanical adjustment disc braking method, characterized in that: This method is implemented by using the double-screw mechanical adjustment disc brake device according to claim 9, and the steps are as follows: S1. When the electric braking unit fails to perform braking work due to a fault light, at this time, the wire pay-off frame is still rotating, and the staff can select the mechanical brake seat to perform mechanical braking on the brake disc; S2. The staff can rotate the two screw rods simultaneously with both hands, and use the screw rods to abut against the tension rods, so that the two tension rods rotate simultaneously around the rotating shaft respectively; 3S. Subsequently, the distance between the two groups of brake blocks is continuously reduced, and finally, the braking of the brake disc can be quickly completed through the brake blocks, and then the braking of the wire pay-off frame can be completed; S4. When the wire pay-off frame is stable, insert the fork shaft on the fork plate into the limiting groove on the side surface of the wire pay-off frame, and the locking of the wire pay-off frame can be realized.

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