Steel wire rope clamping device of elevator speed governor

Abstract

The invention relates to the technical field of elevator shaft speed limiters, in particular to an elevator speed limiter steel wire rope clamping device which comprises a mounting base. The device is quickly disassembled; fixing the wheel disc; an adjustable clamping device; a brake wheel; and a centrifugal trigger device. The effect of limiting steel wire ropes of different sizes is achieved by adjusting the clamping device, the stability of the steel wire ropes in the transmission period is guaranteed, the clamp can be controlled to clamp the steel wire ropes of different sizes, and the centrifugal triggering device monitors the transmission speed of the steel wire ropes through the rotation eccentricity of a brake wheel. When the elevator rapidly falls, the centrifugal triggering device rapidly achieves braking work on the brake wheel through cooperation of eccentricity and the fixed wheel disc, preliminary braking of the steel wire rope is achieved, and meanwhile secondary clamping of the steel wire rope on the brake wheel is achieved in combination with the adjustable clamping device. And the quick dismounting device realizes quick mounting and dismounting of the whole mounting base.

Description

Technical Field

[0001] The present invention relates to the technical field of elevator shaft speed limiters, and specifically to a wire rope clamping device for an elevator speed limiter. Background Technique

[0002] In an elevator operation system, the speed limiter plays a crucial role. It can trigger the safety braking mechanism when the elevator is overspeed. The elevator speed limiter mainly monitors the running speed of the elevator and triggers the safety braking device when the elevator is overspeed. When the elevator is overspeed due to various reasons (such as the out-of-control of the traction machine, the failure of the control system, etc.) and the overspeed degree reaches the action speed preset by the speed limiter, it will immediately start the corresponding mechanism and cooperate with other safety components such as the safety tongs to stop the operation of the elevator car, thereby avoiding serious threats to the lives and safety of passengers caused by situations such as the high-speed fall or out-of-control overshoot of the elevator.

[0003] The wire rope works synchronously with the elevator on the steel cable on the speed limiter. When the elevator falls rapidly, the speed limiter that monitors the elevator overspeed by centrifugal force triggers an action, and quickly stops the wire rope through structures such as ratchets, pawls, and clamps. The stopped wire rope is used to pull the brake block on the safety tongs, so that the safety tongs tightly hold the elevator guide rail. Using the frictional force between the guide rail and the brake block, a braking force opposite to the movement direction is applied to the car (or counterweight), thereby forcing the elevator to stop running. When the existing elevator speed limiter is in use, the speed limiter cannot adapt to wire ropes of different sizes. The clamp is away from the wire rope under normal conditions. When an accident occurs, the clamp needs to quickly clamp the wire rope. However, the clamping positions required by wire ropes of different diameters are different, which leads to the need to select the speed limiter and its safety clamp according to the diameter of the on-site wire rope. In view of this, we propose a wire rope clamping device for an elevator speed limiter. Summary of the Invention

[0004] In view of the deficiencies of the prior art, the present invention provides a clamping device for the steel wire rope of an elevator speed limiter, which solves the problems raised in the above-mentioned background art. To achieve the above objectives, the present invention is realized through the following technical solutions: A clamping device for the steel wire rope of an elevator speed limiter includes a mounting base, on which a quick disassembly device is provided; a fixed wheel disc, which is fixedly connected to the mounting base, and an adjustable clamping device is provided on the fixed wheel disc; the adjustable clamping device includes a spacing adjustment device and symmetric drive ring seats, the drive ring seats rotate on the fixed wheel disc, a braking device is provided on one of the drive ring seats, and annularly arrayed downward pressure grooves are formed on each drive ring seat, a sliding shaft is slidably connected inside the downward pressure groove, a connecting base is fixedly connected to the sliding shaft, an adjustment groove is formed in the connecting base, a pulley is slidably connected inside the adjustment groove, an inner telescopic link is fixedly connected to the pulley, an outer telescopic link is slidably connected to the inner telescopic link, a front safety clamp and a rear safety clamp are respectively fixedly connected to the inner telescopic link and the outer telescopic link, and the surfaces of the front safety clamp and the rear safety clamp are slidably connected; a brake wheel, both ends of which are rotatably connected inside the fixed wheel disc, and a centrifugal trigger device is provided on the brake wheel.

[0005] Preferably, the spacing adjustment device includes fixed bases that are annularly arrayed, the surface of the fixed base is fixedly connected to the surface of the fixed wheel disc, a double-headed screw is rotatably connected inside the fixed base, a front retaining wheel disc and a rear retaining wheel disc are respectively threadedly connected to the surface of the double-headed screw, a gear is fixedly connected to the end of the double-headed screw, and an adjustment gear ring is engaged with the surface of the gear.

[0006] Preferably, limiting blocks are fixedly connected to both the front retaining wheel disc and the rear retaining wheel disc, and the front retaining wheel disc and the rear retaining wheel disc are respectively slidably connected to the front safety clamp and the rear safety clamp through the limiting blocks.

[0007] Preferably, the surfaces of the front retaining wheel disc and the rear retaining wheel disc are respectively slidably connected to the inner wall of the fixed wheel disc, the adjustment gear ring is an annular plate that rotates on the fixed base, and tooth segment portions that are the same in number as and correspond one-to-one to the fixed bases are provided on the annular plate.

[0008] Preferably, the braking device includes a control motor, the end of the control motor is mounted on the mounting base, a connecting worm is clamped to the output shaft of the control motor, a worm gear is engaged with the surface of the connecting worm, a connecting shaft disc is fixedly connected to the inside of the worm gear, the surface of the connecting shaft disc is fixedly connected to the surface of the drive ring seat, and the connecting shaft disc is rotatably connected to the fixed wheel disc.

[0009] Preferably, the centrifugal trigger device includes a chuck and a fixing ring. One side of the chuck is elastically rotated inside the fixed wheel disc through a torsion spring. The chuck is fixedly connected with clamping blocks distributed in an annular array. The inside of the fixing ring is elastically connected with an annular pipe through a spring. The end of the annular pipe is fixedly connected with a centrifugal block.

[0010] Preferably, a trigger groove is formed inside the fixed wheel disc. The surface of the chuck is rotatably connected with the inside of the trigger groove. An alarm button is installed on the inner wall of the trigger groove. The surface of the fixing ring is fixedly connected with the surface of the brake wheel. The centrifugal block is rotatably connected to the brake wheel through a positioning shaft.

[0011] Preferably, the quick-disassembly device includes a clamping base. The top of the clamping base is clamped with the bottom of the installation base through a limiting strip. Positioning members are slidably connected to both sides of the clamping base. A fixed shaft is clamped inside the positioning member. The end of the fixed shaft is fixedly connected with a clamping seat.

[0012] Preferably, the bottom of the clamping seat is slidably connected with the inner wall of the clamping base. The surface of the fixed shaft is slidably connected with the inside of the clamping base.

[0013] Preferably, the positioning member includes an upper clamping seat and a lower clamping seat. One sides of the upper clamping seat and the lower clamping seat are respectively slidably connected with one side of the clamping base. Control grooves are formed on the other sides of the upper clamping seat and the lower clamping seat. A separating shaft rod is slidably connected inside the control groove. The bottom of the upper clamping seat and the top of the lower clamping seat are magnetically connected through a magnet.

[0014] As can be seen from the above technical solutions, a wire rope clamping device for an elevator speed limiter provided by the embodiments of this specification has at least the following beneficial effects:

[0015] (1) By adjusting the clamping device, the present invention realizes the effect of limiting wire ropes of different sizes, not only ensuring the stability during the wire rope transmission, but also enabling the clamp to clamp wire ropes of different sizes. The centrifugal trigger device utilizes the centrifugal rate of the brake wheel rotation to monitor the transmission speed of the wire rope. When the elevator falls rapidly, the centrifugal trigger device quickly realizes the braking of the brake wheel through the cooperation of the centrifugal rate and the fixed wheel disc, realizes the preliminary braking of the wire rope, and at the same time combines with the adjustable clamping device to realize the secondary clamping of the wire rope on the brake wheel. The quick-disassembly device realizes the quick installation and disassembly of the whole installation base.

[0016] (2) The present invention realizes the braking of the brake wheel through the centrifugal trigger device. On the one hand, the braking work of the brake wheel is achieved. On the other hand, the front safety clamp and the rear safety clamp are driven by the braking device to quickly clamp the steel wire rope on the brake wheel during movement, thereby achieving the purpose of secondary positioning of the steel wire rope. After braking, the steel wire rope cooperates with the brake block on the safety clamp to tightly hold the elevator guide rail, forcing the elevator to stop running and completing the emergency self-rescue work of the elevator.

[0017] (3) The present invention adjusts the distance between the front wheel disc and the rear wheel disc by rotating the adjusting gear ring, thereby achieving the purpose of adaptively limiting both sides of the steel wire rope and the effect of limiting steel wire ropes with different diameters. At the same time, the front wheel disc and the rear wheel disc drive the inner telescopic connecting rod and the outer telescopic connecting rod to move back and forth through the front safety clamp and the rear safety clamp. The inner telescopic connecting rod and the outer telescopic connecting rod slide correspondingly through the pulley in the adjusting groove. The larger the distance between the front wheel disc and the rear wheel disc, the larger the diameter of the steel wire rope, and the farther the inner telescopic connecting rod and the outer telescopic connecting rod are from the axis of the driving ring seat, and the farther the front safety clamp and the rear safety clamp are from the steel wire rope, thus achieving the effect of adjusting the corresponding clamping distance for large-diameter steel wire ropes.

[0018] (4) The present invention separates the upper clamping seat and the lower clamping seat by rotating the separating shaft rod, and then drives the fixed shaft to move by an external force, thereby controlling the two groups of clamping seats to move away from each other, realizing the docking or disassembly of the limiting strip on the installation base and the clamping base. After completing the docking or disassembly work, the reset of the clamping seat is used to realize the installation or disassembly of the entire installation base, and then the effect of quickly installing or disassembling the entire installation base is achieved. Brief Description of the Drawings

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application:

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the fixed wheel disc in the present invention;

[0022] Figure 3 It is a schematic diagram of the structure of the brake wheel in the present invention;

[0023] Figure 4 It is a schematic diagram of the structure of the adjustable clamping device in the present invention;

[0024] Figure 5 It is a schematic diagram of the structure at the front safety clamp in the present invention;

[0025] Figure 6 It is a schematic diagram of the structure at the adjusting gear ring in the present invention;

[0026] Figure 7 Schematic diagram of the structure at the chuck in the present invention;

[0027] Figure 8 Schematic diagram of the structure at the driving ring seat in the present invention;

[0028] Figure 9 Schematic diagram of the internal structure of the fixing ring in the present invention;

[0029] Figure 10 Schematic diagram of the structure at the alarm button in the present invention;

[0030] Figure 11 Schematic diagram of the structure at the clamping block in the present invention;

[0031] Figure 12 Schematic diagram of the structure of the quick disassembly device in the present invention;

[0032] Figure 13 Schematic diagram of the structure of the positioning member in the present invention;

[0033] Figure 14 Schematic diagram of the structure of the fixed shaft in the present invention.

[0034] In the figure: 1, mounting base; 2, fixed wheel disc; 3, adjustable clamping device; 31, driving ring seat; 32, braking device; 321, control motor; 322, connecting worm; 323, worm gear; 324, coupling disc; 33, downward pressing groove; 34, sliding shaft; 35, connecting base; 36, adjusting groove; 37, pulley; 38, inner telescopic connecting rod; 39, outer telescopic connecting rod; 310, front safety clamp; 311, rear safety clamp; 4, spacing adjusting device; 41, fixed base; 42, double-headed screw; 43, front retaining wheel disc; 44, rear retaining wheel disc; 45, gear; 46, adjusting gear ring; 47, limiting block; 5, brake wheel; 6, centrifugal triggering device; 61, chuck; 62, clamping block; 63, fixing ring; 64, ring pipe; 65, centrifugal block; 66, triggering groove; 67, positioning shaft; 68, alarm button; 7, quick disassembly device; 71, clamping base; 72, positioning member; 721, upper clamping seat; 722, lower clamping seat; 723, control groove; 724, separating shaft rod; 73, fixed shaft; 74, clamping seat; 75, limiting strip. Specific embodiments

[0035] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0036] Embodiment 1

[0037] Please refer to Figure 1 - Figure 14 As shown in the figure, an elevator speed limiter wire rope clamping device includes an installation base 1, and a quick disassembly device 7 is arranged on the installation base 1; a fixed wheel disc 2, the fixed wheel disc 2 is fixedly connected to the installation base 1, and an adjustable clamping device 3 is arranged on the fixed wheel disc 2; the adjustable clamping device 3 includes a spacing adjustment device 4 and symmetric drive ring seats 31, the drive ring seats 31 rotate on the fixed wheel disc 2, a braking device 32 is arranged on one of the drive ring seats 31, and annular array-distributed downward pressure grooves 33 are formed on each of the drive ring seats 31, a sliding shaft 34 is slidably connected inside the downward pressure groove 33, a connecting base 35 is fixedly connected to the sliding shaft 34, an adjustment groove 36 is formed in the connecting base 35, a pulley 37 is slidably connected inside the adjustment groove 36, an inner telescopic connecting rod 38 is fixedly connected to the pulley 37, one end of the inner telescopic connecting rod 38 is slidably connected to an outer telescopic connecting rod 39, a front safety clamp 310 and a rear safety clamp 311 are respectively fixedly connected to the inner telescopic connecting rod 38 and the outer telescopic connecting rod 39, the surfaces of the front safety clamp 310 and the rear safety clamp 311 are slidably connected, the sides of the front safety clamp 310 and the rear safety clamp 311 close to the wire rope are both set in a cross shape, and the front safety clamp 310 and the rear safety clamp 311 are cross-connected (such as Figure 5As shown, the purpose of enabling a pair of clamps (i.e., the front safety clamp 310 and the rear safety clamp 311) to expand and contract is achieved, and then the purpose of adaptively clamping wire ropes with different diameters is achieved. The number of the front safety clamp 310 and the rear safety clamp 311 is set to at least one. The number of the corresponding structures for controlling the movement of the front safety clamp 310 and the rear safety clamp 311 corresponds to the number of the front safety clamp 310 and the rear safety clamp 311. The smaller the diameter of the wire rope, the smaller the distance between the front safety clamp 310 and the rear safety clamp 311; the larger the diameter of the wire rope, the larger the distance between the front safety clamp 310 and the rear safety clamp 311. Thus, when clamping a small-diameter wire rope, the problem of movement interference between the front safety clamp 310 and the rear safety clamp 311 with a large distance and the spacing adjustment device 4 is avoided; the brake wheel 5, both ends of the brake wheel 5 are rotatably connected in the fixed wheel disc 2, and a centrifugal trigger device 6 is arranged on the brake wheel 5. The effect of limiting wire ropes with different sizes is achieved through the adjustable clamping device 3, which not only ensures the stability during the transmission of the wire rope but also can control a pair of clamps to clamp wire ropes with different sizes. The centrifugal trigger device 6 monitors the transmission speed of the wire rope by using the centrifugal rate of the rotation of the brake wheel 5. When the elevator falls rapidly, the centrifugal trigger device 6 quickly stops the brake wheel 5 through the cooperation of the centrifugal rate and the fixed wheel disc 2, achieving the preliminary stop of the wire rope. At the same time, in combination with the adjustable clamping device 3, the wire rope on the brake wheel 5 is clamped for the second time, and the quick disassembly device 7 realizes the quick installation and disassembly of the whole installation base 1. When the elevator falls rapidly, on the one hand, the centrifugal trigger device 6 stops the brake wheel 5, and on the other hand, it drives the drive ring seat 31 to rotate clockwise through the stop device 32. The drive ring seat 31 drives the connection base 35 on the sliding shaft 34 to move through the pressing groove 33. The connection base 35 drives the front safety clamp 310 on the inner telescopic connecting rod 38 to move through the pulley 37 in the adjustment groove 36. At the same time, the inner telescopic connecting rod 38 drives the rear safety clamp 311 to move synchronously through the outer telescopic connecting rod 39. Since the front safety clamp 310 and the rear safety clamp 311 are restricted by the spacing adjustment device 4 and cannot move forward and backward, when the drive ring seat 31 rotates, the inner telescopic connecting rod 38 and the outer telescopic connecting rod 39 can only move closer to the axis of the drive ring seat 31, that is, the front safety clamp 310 and the rear safety clamp 311 move synchronously towards the axis of the drive ring seat 31. During the movement, the front safety clamp 310 and the rear safety clamp 311 can quickly clamp the wire rope on the brake wheel 5, and then achieve the purpose of secondary positioning of the wire rope. The stopped wire rope cooperates with pulling the brake block on the safety clamp, so that the safety clamp tightly holds the elevator guide rail, thereby forcing the elevator to stop running and completing the emergency self-rescue work of the elevator.

[0038] In this embodiment, the spacing adjustment device 4 includes fixed bases 41 distributed in an annular array. The surface of the fixed base 41 is fixedly connected to the surface of the fixed wheel disc 2. A double-headed screw 42 is rotatably connected inside the fixed base 41. The front retaining wheel disc 43 and the rear retaining wheel disc 44 are respectively threadedly connected to the surface of the double-headed screw 42. The front retaining wheel disc 43 and the rear retaining wheel disc 44 are located on the front and rear sides of the steel wire rope and are used to limit the steel wire rope to ensure the stability during the transmission of the steel wire rope. The surfaces of the front retaining wheel disc 43 and the rear retaining wheel disc 44 are respectively slidably connected to the inner wall of the fixed wheel disc 2. A gear 45 is fixedly connected to the end of the double-headed screw 42. The surface of the gear 45 is engaged with an adjusting gear ring 46. The adjusting gear ring 46 is an annular plate rotatable on the fixed base 41. The number of the fixed base 41 and its corresponding structures thereon is set to at least one. Tooth segments corresponding to the number of the fixed bases 41 and in one-to-one correspondence are provided on the annular plate. Limiting blocks 47 are fixedly connected to both the front retaining wheel disc 43 and the rear retaining wheel disc 44. The front retaining wheel disc 43 and the rear retaining wheel disc 44 are respectively slidably connected to the front safety clamp 310 and the rear safety clamp 311 through the limiting blocks 47. By rotating the adjusting gear ring 46, the adjusting gear ring 46 drives the double-headed screw 42 to rotate through the engaged gear 45. The double-headed screw 42 drives the front retaining wheel disc 43 and the rear retaining wheel disc 44 threadedly connected thereto to move relatively. The front retaining wheel disc 43 and the rear retaining wheel disc 44 move closer or farther away. The distance of moving closer or farther away is controlled according to the actual diameter of the steel wire rope, so as to achieve the purpose of adaptively limiting both sides of the steel wire rope and the effect of limiting steel wire ropes with different diameters. At the same time, the front retaining wheel disc 43 and the rear retaining wheel disc 44 drive the inner telescopic link 38 and the outer telescopic link 39 to move back and forth through the front safety clamp 310 and the rear safety clamp 311. The inner telescopic link 38 and the outer telescopic link 39 slide correspondingly in the adjusting groove 36 through the pulley 37. The larger the distance between the front retaining wheel disc 43 and the rear retaining wheel disc 44, the larger the diameter of the steel wire rope, and the farther the inner telescopic link 38 and the outer telescopic link 39 are from the axis of the driving ring seat 31, and the farther the front safety clamp 310 and the rear safety clamp 311 are from the steel wire rope, so as to achieve the effect of adjusting the corresponding clamping distance for the steel wire rope with a large diameter.

[0039] Furthermore, the braking device 32 includes a control motor 321. The end of the control motor 321 is mounted on the mounting base 1. A connecting worm 322 is clamped to the output shaft of the control motor 321. A worm gear 323 is engaged with the surface of the connecting worm 322. A coupling disk 324 is fixedly connected to the inside of the worm gear 323. The surface of the coupling disk 324 is fixedly connected to the surface of the driving ring seat 31, and the coupling disk 324 is rotatably connected to the fixed disk 2. After receiving an instruction, the control motor 321 drives the connecting worm 322 to rotate. The connecting worm 322 drives the driving ring seat 31 fixed on the coupling disk 324 to rotate through the engaged worm gear 323, so as to drive the front safety clamp 310 and the rear safety clamp 311 to quickly clamp the steel wire rope on the brake wheel 5, and then achieve the purpose of secondary positioning of the steel wire rope.

[0040] Furthermore, the centrifugal trigger device 6 includes a chuck 61 and a fixed ring 63. One side of the chuck 61 is elastically rotated inside the fixed disk 2 through a torsion spring. The surface of the fixed ring 63 is fixedly connected to the surface of the brake wheel 5. An inner ring of the chuck 61 is fixedly connected with clamping blocks 62 distributed in an annular array (as Figure 11 shown). An annular tube 64 is elastically connected to the inside of the fixed ring 63 through a spring. The annular tube 64 is elastically positioned by the spring at this place. The elastic force of the spring at this place determines the centrifugal force that the annular tube 64 can be thrown. An end of the annular tube 64 is fixedly connected with a centrifugal block 65. The centrifugal block 65 is rotatably connected to the brake wheel 5 through a positioning shaft 67. The positioning shaft 67 is used to limit one end of the centrifugal block 65 so that when it is affected by the centrifugal force of the overall transmission speed of the brake wheel 5, it can be rotated and thrown out. A plurality of trigger grooves 66 distributed in an annular array are opened inside the fixed disk 2 (as Figure 10 shown). The surface of the chuck 61 is rotatably connected to the inside of the trigger groove 66. An alarm button 68 is installed on the inner wall of one of the trigger grooves 66. An outer ring of the chuck 61 is provided with cams corresponding to the trigger grooves 66 in number and one-to-one correspondence. One of the cams is used to trigger the alarm button 68 to achieve an alarm.

[0041] In addition, the quick disassembly device 7 includes a clamping base 71. The top of the clamping base 71 is clamped to the bottom of the mounting base 1 through a limiting strip 75. The clamping base 71 is fixedly installed in the elevator shaft through mounting parts such as bolts. A clamping groove adapted to the limiting strip 75 is opened at the bottom of the mounting base 1. The initial installation and positioning of the mounting base 1 and the clamping base 71 are realized through the adaptation of the clamping groove and the limiting strip 75. Positioning members 72 are slidably connected to both sides of the clamping base 71. A fixed shaft 73 is clamped inside the positioning member 72. The surface of the fixed shaft 73 is slidably connected to the inside of the clamping base 71. An end of the fixed shaft 73 is fixedly connected with a clamping seat 74. The bottom of the clamping seat 74 is slidably connected to the inner wall of the clamping base 71.

[0042] In addition, the positioning member 72 includes an upper clamping seat 721 and a lower clamping seat 722. One side of the upper clamping seat 721 and the lower clamping seat 722 is respectively slidably connected to one side of the clamping base 71. The other side of the upper clamping seat 721 and the lower clamping seat 722 is provided with a control groove 723. A separation shaft rod 724 is slidably connected inside the control groove 723. Two sets of slightly shafts are arranged on the separation shaft rod 724. The two sets of slightly shafts are respectively slid in the control grooves 723 of the upper clamping seat 721 and the lower clamping seat 722, and then the separation shaft rod 724 is rotated to achieve the effect of externally separating the upper clamping seat 721 and the lower clamping seat 722. Threaded grooves are arranged inside the upper clamping seat 721 and the lower clamping seat 722, and threads are arranged on the fixed shaft 73. When the upper clamping seat 721 and the lower clamping seat 722 are combined, the fixing of the fixed shaft 73 can be achieved by using the thread effect. After they are separated, the operator can externally drive the fixed shaft 73 to move, so as to control the two clamping seats 74 to move away from each other, realizing the docking or disassembly of the mounting base 1 and the limiting strip 75 on the clamping base 71. After the docking or disassembly work is completed, the reset of the clamping seat 74 is used to realize the installation or disassembly of the whole mounting base 1, and then the effect of quickly installing or disassembling the whole mounting base 1 is achieved. Magnets are fixedly connected to the bottom of the upper clamping seat 721 and the top of the lower clamping seat 722, and the two magnets are in a magnetically adsorbed state, which is used to realize the preliminary positioning of the upper clamping seat 721 and the lower clamping seat 722, and the magnetic connection can realize external separation, thus facilitating the separation of the upper clamping seat 721 and the lower clamping seat 722 and achieving the disconnection effect of the fixed shaft 73.

[0043] When the wire rope clamping device of an elevator speed limiter of the present invention is in use, first, the clamping base 71 is fixedly installed in the elevator shaft through mounting parts such as bolts. The operator rotates the separating shaft rod 724. Two sets of pivot pins are arranged at the control groove 723 of the separating shaft rod 724 located inside the upper clamping seat 721 and the lower clamping seat 722. After the external force rotates the separating shaft rod 724, the upper clamping seat 721 and the lower clamping seat 722 can be driven to separate through these two sets of pivot pins. After separation, the upper clamping seat 721 and the lower clamping seat 722 lose the clamping effect on the fixed shaft 73. At this time, the two symmetrically distributed clamping seats 74 located on the clamping base 71 can move relatively. By controlling the two clamping seats 74 to move away from each other, the docking or disassembly of the mounting base 1 and the limit strip 75 on the clamping base 71 can be realized. After the docking or disassembly work is completed, the reset of the clamping seat 74 is used to realize the overall installation or disassembly of the mounting base 1, and then the effect of quickly installing or disassembling the entire mounting base 1 can be realized. The wire rope is driven on the brake wheel 5 during operation. The brake wheel 5 performs corresponding driving work under the influence of the wire rope. When the elevator is operating normally, the wire rope and the elevator steel cable are in synchronous transmission. When the elevator falls rapidly, the rapidly transmitted wire rope transmits the force to the brake wheel 5. When the brake wheel 5 rotates at a high speed, the centrifugal block 65 is thrown out by centrifugal force. The centrifugal force received by the centrifugal block 65 is greater than the spring force on the ring tube 64, and the ring tube 64 is also thrown out of the fixed ring 63. At this time, the centrifugal block 65 rotates out with the axis point of the positioning shaft 67 as the center of the circle. After the centrifugal block 65 rotates out, it will contact the latch 62 and synchronously transmit the force to the latch 62. After the latch 62 restricts the overall rotation of the chuck 61 in the fixed wheel disc 2 for a short time, the cam on the outer ring of the chuck 61 will contact and press the alarm button 68. The alarm button 68 receives the elevator fall information and transmits it to the control motor 321. At the same time, the chuck 61 is restricted by the trigger groove 66 and can only rotate slightly. After contacting the alarm button 68, the chuck 61 will be restricted by the trigger groove 66 and cannot rotate further. At this time, the chuck 61 transmits the restricting force to the centrifugal block 65 and the brake wheel 5, and the brake wheel 5 is braked and cannot continue to be driven by the wire rope. Therefore, by positioning the brake wheel 5, the effect of quickly braking the wire rope can be realized. The braked wire rope cooperates with the braking block on the safety tongs to make the safety tongs tightly hold the elevator guide rail, thereby forcing the elevator to stop running and completing the emergency self-rescue work of the elevator.Meanwhile, in order to improve the braking effect on the steel wire rope, the control motor 321 drives the connecting worm 322 to rotate after receiving an instruction. The connecting worm 322 drives the driving ring seat 31 fixed on the coupling disc 324 to rotate through the meshing worm wheel 323. When the driving ring seat 31 rotates clockwise, it drives the connecting base 35 on the sliding shaft 34 to move through the pressing groove 33. The connecting base 35 drives the front safety clamp 310 on the inner telescopic link 38 to move through the pulley 37 in the adjusting groove 36. At the same time, the inner telescopic link 38 drives the rear safety clamp 311 to move synchronously through the outer telescopic link 39. Since the front safety clamp 310 and the rear safety clamp 311 are restricted by the front retaining wheel disc 43 and the rear retaining wheel disc 44 and cannot move forward and backward, when the driving ring seat 31 rotates, the inner telescopic link 38 and the outer telescopic link 39 can only move closer to the axis of the driving ring seat 31, that is, the front safety clamp 310 and the rear safety clamp 311 move synchronously towards the axis of the driving ring seat 31. The front safety clamp 310 and the rear safety clamp 311 can achieve the effect of quickly clamping the steel wire rope on the brake wheel 5 during the movement, thereby achieving the purpose of secondary positioning of the steel wire rope.

[0044] The front retaining wheel disc 43 and the rear retaining wheel disc 44 are located on both sides of the steel wire rope and are used to limit the steel wire rope. When the operator needs to adjust the distance between the front retaining wheel disc 43 and the rear retaining wheel disc 44 according to the diameter of the steel wire rope, by rotating the adjusting gear ring 46, the adjusting gear ring 46 drives the double-headed screw 42 to rotate through the meshing gear 45. The double-headed screw 42 drives the front retaining wheel disc 43 and the rear retaining wheel disc 44 threadedly connected thereto to perform relative movement. The front retaining wheel disc 43 and the rear retaining wheel disc 44 move closer or farther away. The distance of approaching or moving away is controlled according to the actual diameter of the steel wire rope, so as to achieve the purpose of adaptively limiting both sides of the steel wire rope and the effect of limiting steel wire ropes with different diameters, thereby ensuring the stability during the transmission of the steel wire rope. At the same time, since the front safety clamp 310 and the rear safety clamp 311 are respectively limited and slide on the front retaining wheel disc 43 and the rear retaining wheel disc 44, when the distance between the front retaining wheel disc 43 and the rear retaining wheel disc 44 is adjusted, the front safety clamp 310 and the rear safety clamp 311 can be correspondingly driven to move forward and backward. When the front safety clamp 310 and the rear safety clamp 311 move forward and backward, they drive the inner telescopic link 38 and the outer telescopic link 39 to perform corresponding telescopic work forward and backward. The inner telescopic link 38 and the outer telescopic link 39 slide correspondingly in the adjusting groove 36 through the pulley 37, that is, the inner telescopic link 38 and the outer telescopic link 39 move closer to or away from the axis of the driving ring seat 31 along the axis of the driving ring seat 31. The larger the distance between the front retaining wheel disc 43 and the rear retaining wheel disc 44, the larger the diameter of the steel wire rope represents, and the farther the inner telescopic link 38 and the outer telescopic link 39 are from the axis of the driving ring seat 31, and the farther the front safety clamp 310 and the rear safety clamp 311 are from the steel wire rope, so as to achieve the effect of correspondingly adjusting the clamping distance for large-diameter steel wire ropes.

[0045] The above embodiments are only used to illustrate the embodiments of the present invention, rather than to limit the embodiments of the present invention. Those of ordinary skill in the relevant technical field can also make various changes and modifications without departing from the spirit and scope of the embodiments of the present invention. Therefore, all equivalent technical solutions also belong to the scope of the embodiments of the present invention. The patent protection scope of the embodiments of the present invention shall be defined by the claims.

Claims

1. An elevator speed governor wire rope clamping device, characterized in that: include A mounting base (1), wherein a quick disassembly device (7) is provided on the mounting base (1); A fixed wheel disc (2), the fixed wheel disc (2) being fixedly connected to the mounting base (1), and the fixed wheel disc (2) being provided with an adjustable clamping device (3); The adjustable clamping device (3) comprises a spacing adjustment device (4) and a symmetrical drive ring seat (31), wherein the drive ring seat (31) rotates on the fixed wheel disc (2), wherein one of the drive ring seats (31) is provided with a brake device (32), and each drive ring seat (31) is provided with a downward pressing groove (33) distributed in a ring array, wherein a sliding shaft (34) is slidably connected inside the downward pressing groove (33), and a connecting base (35) is fixedly connected to the sliding shaft (34), and the connecting base (35) is ) is provided with an adjustment groove (36), the interior of the adjustment groove (36) is slidably connected to a pulley (37), the pulley (37) is fixedly connected to an inner telescopic link (38), one end of the inner telescopic link (38) is slidably connected to an outer telescopic link (39), the inner telescopic link (38) and the outer telescopic link (39) are respectively fixedly connected to a front safety clamp (310) and a rear safety clamp (311), and the surface of the front safety clamp (310) and the surface of the rear safety clamp (311) are slidably connected; A brake wheel (5), both ends of which are rotatably connected to the fixed wheel disc (2), and a centrifugal trigger device (6) is provided on the brake wheel (5).

2. The elevator speed governor wire rope clamping device according to claim 1, characterized in that: The spacing adjustment device (4) comprises a fixed base (41) distributed in a ring array, the surface of the fixed base (41) is fixedly connected to the surface of the fixed wheel disc (2), the interior of the fixed base (41) is rotatably connected to a double-headed screw rod (42), the surface of the double-headed screw rod (42) is respectively threadedly connected to a front wheel disc (43) and a rear wheel disc (44), the end of the double-headed screw rod (42) is fixedly connected to a gear (45), and the surface of the gear (45) is meshed with an adjustment gear ring (46).

3. The elevator speed governor wire rope clamping device according to claim 2, characterized in that: The front wheel disc (43) and the rear wheel disc (44) are both fixedly connected to a limiting block (47), and the front wheel disc (43) and the rear wheel disc (44) are slidably connected to the front safety clamp (310) and the rear safety clamp (311) respectively through the limiting block (47).

4. The elevator speed governor wire rope clamping device according to claim 2, characterized in that: The surfaces of the front stopper wheel disc (43) and the rear stopper wheel disc (44) are respectively slidably connected to the inner wall of the fixed wheel disc (2); the adjusting gear ring (46) is a ring plate rotating on the fixed base (41); the ring plate is provided with tooth segments having the same number and one-to-one correspondence with the fixed base (41).

5. The elevator speed governor wire rope clamping device according to claim 1, characterized in that: The brake device (32) comprises a control motor (321), the end of which is mounted on a mounting base (1), the output shaft of the control motor (321) is clamped with a connecting worm (322), the surface of the connecting worm (322) is meshed with a worm wheel (323), the interior of the worm wheel (323) is fixedly connected with a coupling plate (324), the surface of the coupling plate (324) is fixedly connected to the surface of the drive ring seat (31), and the coupling plate (324) is rotatably connected to the fixed wheel plate (2).

6. The elevator speed governor wire rope clamping device according to claim 1, characterized in that: The centrifugal trigger device (6) comprises a chuck (61) and a fixed ring (63); one side of the chuck (61) is elastically rotated inside the fixed wheel disc (2) through a torsion spring; the chuck (61) is fixedly connected to clamping blocks (62) distributed in a ring array; the interior of the fixed ring (63) is elastically connected to a ring tube (64) through a spring; and the end of the ring tube (64) is fixedly connected to a centrifugal block (65).

7. The elevator speed governor wire rope clamping device according to claim 6, characterized in that: A trigger groove (66) is provided inside the fixed wheel disc (2), the surface of the chuck (61) is rotatably connected to the inside of the trigger groove (66), an alarm button (68) is installed on the inner wall of the trigger groove (66), the surface of the fixed ring (63) is fixedly connected to the surface of the brake wheel (5), and the centrifugal block (65) is rotatably connected to the brake wheel (5) via a positioning shaft (67).

8. The elevator speed governor wire rope clamping device according to claim 1, characterized in that: The quick disassembly device (7) comprises a clamping base (71), the top of the clamping base (71) is clamped with the bottom of the mounting base (1) via a limiting strip (75), both sides of the clamping base (71) are slidably connected with positioning members (72), the interior of the positioning member (72) is clamped with a fixed shaft (73), and the end of the fixed shaft (73) is fixedly connected with a clamping seat (74).

9. The elevator speed governor wire rope clamping device according to claim 8, characterized in that: The bottom of the clamping seat (74) is slidably connected to the inner wall of the clamping base (71), and the surface of the fixed shaft (73) is slidably connected to the inside of the clamping base (71).

10. The elevator speed governor wire rope clamping device according to claim 8, characterized in that: The positioning member (72) includes an upper card seat (721) and a lower card seat (722), one side of the upper card seat (721) and the lower card seat (722) are respectively slidably connected to one side of the card base (71), and the other side of the upper card seat (721) and the lower card seat (722) are each provided with a control groove (723), and the interior of the control groove (723) is slidably connected with a separation shaft (724), and the bottom of the upper card seat (721) and the top of the lower card seat (722) are magnetically connected via a magnet.

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