Deceleration buffer device for elevator rope sheave

Abstract

The utility model relates to the technical field of elevator rope sheaves, and discloses an elevator rope sheave deceleration buffer device which comprises a base, sliding plates are slidably connected to the left side and the right side of the interior of the base, a first rotating rod is rotatably connected to the upper middle portions of the adjacent sides of the two sliding plates, and a main rope sheave is fixedly connected to the middle of the outer wall of the first rotating rod. A plurality of first fixing rods are fixedly connected to the peripheries of the upper middle portions of the adjacent sides of the two sliding plates at equal intervals, the two ratchet wheels are in meshed connection with the corresponding pawls correspondingly, and a dismounting mechanism is arranged at the top of the inner side of the base and used for facilitating replacement of damaged parts by workers. According to the elevator traction device, when the traction device of the elevator breaks down, the steel wire rope can pull the auxiliary rope wheel to move upwards, then the first fixing rod is pulled to move upwards along the connecting block till the pawls on the two sides make contact with the ratchet wheel, the rotating speed of the main rope wheel is reduced, the speed reduction effect of the elevator rope wheel is better, and the use safety of the elevator is improved.

Description

Technical Field

[0001] This utility model relates to the field of elevator rope pulley technology, and in particular to an elevator rope pulley deceleration and buffer device. Background Technology

[0002] Elevator pulleys are important components in elevator systems, typically consisting of a hub, rim, and spokes. They transmit the power of the traction machine to the wire rope, thereby driving the elevator car. The diameter and rotational speed of the pulley affect the elevator's operating speed and acceleration.

[0003] Elevator pulleys are used in conjunction with deceleration and buffer devices. When it is necessary to control the speed of an object, the deceleration and buffer device can absorb impact energy under certain circumstances, thereby preventing the elevator from falling from a height or overshooting the top.

[0004] The existing elevator rope sheave deceleration and buffer device uses the friction between the friction wheel and the elevator rope sheave to achieve deceleration. However, as the friction plate gradually wears down over time, the deceleration and buffering effect of the elevator rope sheave becomes poor, thereby reducing the safety of elevator use and failing to meet the needs of users. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an elevator rope deceleration and buffer device, which aims to improve the problem of poor elevator rope deceleration and buffering effect in the existing elevator rope deceleration and buffer device.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: an elevator rope wheel deceleration and buffer device, comprising a base, wherein sliding plates are slidably connected to the left and right sides of the interior of the base, a first rotating rod is rotatably connected to the upper middle part of an adjacent side of two sliding plates, a main rope wheel is fixedly connected to the middle of the outer wall of the first rotating rod, a plurality of first fixing rods are equidistantly fixedly connected to the upper middle part of an adjacent side of two sliding plates, a common clamp is fixedly connected to an adjacent side of the plurality of first fixing rods, one end of the first rotating rod passes through the two clamps in sequence, a ratchet is fixedly connected to the left and right sides of the outer wall of the first rotating rod, a second rotating rod is rotatably connected to the lower front end of the opposite side of the two clamps, a connecting block is fixedly connected to the outer wall of each of the two second rotating rods, a common second fixing rod is fixedly connected to the bottom end of each of the two connecting blocks, a secondary rope wheel is rotatably connected to the middle of the outer wall of the second fixing rod, a pawl is fixedly connected to the left and right sides of the outer wall of the second fixing rod, the two ratchets are respectively engaged with the corresponding pawls, and a disassembly mechanism is provided on the top inner side of the base, the disassembly mechanism being used to facilitate the replacement of damaged parts by the operator.

[0007] As a further description of the above technical solution:

[0008] The disassembly mechanism includes a first motor, the bottom of which is fixedly connected to the inner bottom of the base. A first gear is fixedly connected to the output end of the first motor. A third rotating rod is rotatably connected to the right side of the bottom center of the inner wall of the base. A second gear is fixedly connected to the top of the third rotating rod. The first gear and the second gear are meshed together. A first fixing block is fixedly connected to the opposite side of the first gear and the second gear. A fourth rotating rod is rotatably connected to the opposite side of the two first fixing blocks. A first rotating block is rotatably connected to the middle of the two fourth rotating rods. A fifth rotating rod is rotatably connected to the left and right ends of the inner front side of the base. The tops of the two fifth rotating rods are rotatably connected to the corresponding first rotating blocks. A second rotating block is rotatably connected to the top of the outer wall of the two fifth rotating rods.

[0009] As a further description of the above technical solution:

[0010] Limiting blocks are fixedly connected to the opposite sides of the two clamping plates, and springs are fixedly connected to one side of each of the two limiting blocks. The other ends of the two springs are fixedly connected to the corresponding connecting blocks.

[0011] As a further description of the above technical solution:

[0012] Each of the two skateboards has a handle fixedly connected to its rear side, and a protective sleeve is fixedly connected to the middle of the outer wall of each of the two handles.

[0013] As a further description of the above technical solution:

[0014] Both the main sheave and the auxiliary sheave are internally connected to multiple steel wire ropes, and rubber pads are fixedly connected to the opposite sides of the two second rotating blocks.

[0015] As a further description of the above technical solution:

[0016] The two clamps are provided with the same baffle at the front and rear ends of adjacent sides, and the left and right sides of the two baffles are threaded with fixing caps.

[0017] As a further description of the above technical solution:

[0018] The base has positioning rods threaded at equal intervals around its inner top, and each of the positioning rods has a nut fixedly connected to its top.

[0019] As a further description of the above technical solution:

[0020] A controller is fixedly connected to the middle right side of the base, and the controller is electrically connected to the first motor.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the main rope wheel drives the first rotating rod to rotate, and then the ratchet wheels on both sides rotate accordingly. When the elevator's traction device malfunctions, the wire rope will pull the auxiliary rope wheel upward, which in turn pulls the first fixed rod to move upward along the connecting block until the pawls on both sides contact the ratchet wheels, restricting the rotation of the ratchet wheels, thereby reducing the speed of the main rope wheel, thus making the deceleration effect of the elevator rope wheel better, improving the safety of elevator use, and thus meeting the needs of users.

[0023] 2. In this utility model, the starting motor controls the first gear to rotate, thereby driving the meshing second gear. The first fixed block, which is fixed to the first gear and the second gear, will rotate accordingly, thereby pulling the first rotating block. When the first rotating block rotates, it will drive the fifth rotating rod, thereby causing the second rotating block to move away from the slide plate, thus making it convenient for the staff to pull out the slide plate to replace the damaged parts inside. Attached Figure Description

[0024] Figure 1 This is a perspective view of an elevator rope wheel deceleration and buffer device proposed in this utility model;

[0025] Figure 2 This is a front view of an elevator rope deceleration and buffer device proposed in this utility model;

[0026] Figure 3 This is a partial structural schematic diagram of an elevator rope wheel deceleration and buffer device proposed in this utility model;

[0027] Figure 4 This is a top view showing a partial structure of an elevator rope wheel deceleration and buffer device proposed in this utility model;

[0028] Figure 5 This is a top view of an elevator rope deceleration and buffer device proposed in this utility model.

[0029] Legend:

[0030] 1. Base; 2. Disassembly mechanism; 201. First motor; 202. First gear; 203. Third rotating rod; 204. Second gear; 205. First fixing block; 206. Fourth rotating rod; 207. First rotating block; 208. Fifth rotating rod; 209. Second rotating block; 3. Slide plate; 4. First rotating rod; 5. Main rope pulley; 6. First fixing rod; 7. Clamping plate; 8. Ratchet; 9. Second rotating rod; 10. Connecting block; 11. Second fixing rod; 12. Secondary rope pulley; 13. Pawl; 14. Limiting block; 15. Spring; 16. Rubber pad; 17. Steel wire rope; 18. Controller; 19. Positioning rod; 20. Nut; 21. Handle; 22. Protective sleeve; 23. Baffle; 24. Fixing cap. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of an elevator rope wheel deceleration and buffer device, comprising a base 1, with sliding plates 3 slidably connected to the left and right sides of the base 1, a first rotating rod 4 rotatably connected to the upper middle part of an adjacent side of two sliding plates 3, a main rope wheel 5 fixedly connected to the middle of the outer wall of the first rotating rod 4, multiple first fixing rods 6 equidistantly fixedly connected to the upper middle part of an adjacent side of two sliding plates 3, and a common clamping plate 7 fixedly connected to the adjacent side of the multiple first fixing rods 6, one end of the first rotating rod 4 passing through two clamping plates 7 in sequence, ratchet wheels 8 fixedly connected to the left and right sides of the outer wall of the first rotating rod 4, and a second rotating rod 9 rotatably connected to the lower front end of the side of the two clamping plates 7 that are far apart, a connecting block 10 fixedly connected to the outer wall of each of the two second rotating rods 9, and a common second fixing rod 11 fixedly connected to the bottom end of each of the two connecting blocks 10. A secondary rope wheel 12 is rotatably connected to the middle of the outer wall of the second fixed rod 11. Pads 13 are fixedly connected to the left and right sides of the outer wall of the second fixed rod 11. The two ratchet wheels 8 are respectively engaged with the corresponding pawls 13. A disassembly mechanism 2 is provided on the top inner side of the base 1. The disassembly mechanism 2 is used to facilitate the replacement of damaged parts by the staff. The front and rear ends of the two adjacent sides of the two clamping plates 7 are provided with the same baffle 23. The left and right sides of the two baffles 23 are threaded with fixing caps 24. Limiting blocks 14 are fixedly connected to the opposite sides of the two clamping plates 7. Springs 15 are fixedly connected to one side of the two limiting blocks 14. The other ends of the two springs 15 are respectively fixedly connected to the corresponding connecting blocks 10. Multiple steel wire ropes 17 are rotatably connected inside the main rope wheel 5 and the secondary rope wheel 12. Rubber pads 16 are fixedly connected to the opposite sides of the two second rotating blocks 209.

[0033] Specifically, during normal elevator operation, multiple steel wire ropes 17 slide within corresponding grooves inside the main sheave 5 and auxiliary sheave 12. When the main sheave 5 rotates, it drives the first rotating rod 4 to rotate, which in turn drives the ratchet 8 on both sides of the first rotating rod 4 to rotate as well. During operation, the steel wire ropes 17 pull the auxiliary sheave 12 closer to the main sheave 5. At this time, the springs 15 connected to the limit blocks 14 on both sides of the clamp 7 exert a downward force on the connecting block 10, thereby controlling the distance between the main sheave 5 and the auxiliary sheave 12. If the elevator's traction device malfunctions, the tension in the steel wire ropes 17 will increase. If the spring 15's thrust is insufficient to counteract the tension of the wire rope 17, the wire rope 17 will pull the second fixing rod 11 upward as the connecting block 10 moves upward. The second fixing rod 11 in the middle of the connecting block 10 will move upward, thereby moving the pawls 13 on both sides upward. When the pawls 13 contact the ratchet 8, the pawls 13 will restrict the rotation of the ratchet 8, thereby reducing the rotational speed of the main rope wheel 5, thus making the deceleration effect of the elevator rope wheel better. At the same time, in order to prevent the wire rope 17 from breaking, baffles 23 need to be installed on both sides of the clamping plate 7 to restrict the wire rope 17, improving the safety of elevator use.

[0034] Reference Figure 2 , Figure 3 and Figure 4 The disassembly mechanism 2 includes a first motor 201, the bottom end of which is fixedly connected to the inner bottom of the base 1. A first gear 202 is fixedly connected to the output end of the first motor 201. A third rotating rod 203 is rotatably connected to the right side of the bottom center of the inner wall of the base 1. A second gear 204 is fixedly connected to the top end of the third rotating rod 203. The first gear 202 and the second gear 204 are meshed. First fixing blocks 205 are fixedly connected to the opposite sides of both the first gear 202 and the second gear 204. Each of the two slide plates 3 is rotatably connected to a fourth rotating rod 206 on the side furthest from each other. The middle of each of the two fourth rotating rods 206 is rotatably connected to a first rotating block 207. The left and right ends of the front side of the base 1 are rotatably connected to a fifth rotating rod 208. The top of each of the two fifth rotating rods 208 is rotatably connected to the corresponding first rotating block 207. The top of the outer wall of each of the two fifth rotating rods 208 is rotatably connected to a second rotating block 209. The rear sides of each of the two slide plates 3 are fixedly connected to a handle 21. The middle of the outer wall of each of the two handles 21 is fixedly connected to a protective sleeve 22.

[0035] Specifically, the first motor 201 is turned on, causing its output to control the first gear 202 to rotate, thereby driving the second gear 204, which is fixed on the third rotating rod 203 and meshes with the first gear 202, to rotate. When the first gear 202 and the second gear 204 rotate together, they can drive the first fixed blocks 205 on both sides to rotate, which in turn drives the fourth rotating rod 206 on the right side of the two first fixed blocks 205 to rotate. At this time, the first rotating block 207 on the fourth rotating rod 206 will be driven to rotate in the same direction as the first fixed block 205. The two fifth rotating rods 208 can rotate on the base 1. When the first rotating block 207 is driven, the first rotating blocks 207 on both sides will simultaneously control the corresponding second rotating block 209 to move away from the slide plate 3, thereby releasing the second rotating block 209 from limiting the slide plate 3. A handle 21 is also installed on the rear side of the slide plate 3, which makes it convenient for the staff to use the handle 21 to pull out the slide plate 3 and replace the damaged parts inside.

[0036] Reference Figure 1 and Figure 5 The base 1 has positioning rods 19 threadedly connected at equal intervals around the top of the inner side, and the top of each positioning rod 19 is fixedly connected with a nut 20.

[0037] Specifically, multiple positioning rods 19 are provided on the base 1. The positioning rods 19 can be rotated to fix the base 1 in a specific position, and the nuts 20 are used for limiting the position.

[0038] Reference Figure 1 and Figure 3 A controller 18 is fixedly connected to the middle right side of the base 1, and the controller 18 is electrically connected to the first motor 201.

[0039] Specifically, a controller 18 is installed on the right side of the base 1. The first motor 201 is controlled by turning on the controller 18. The model of the first motor 201 is MSKO75E-0200.

[0040] Working principle: When using this device, the car and counterweight are first connected by the steel wire ropes 17 wound on the elevator pulleys, and then the traction machine is started to operate the elevator normally. At this time, multiple steel wire ropes 17 will slide in the corresponding grooves in the middle of the main pulley 5 and the auxiliary pulley 12. The main pulley 5 drives the first rotating rod 4 to rotate, which in turn drives the ratchet 8 on both sides to rotate. The steel wire ropes 17 will pull the auxiliary pulley 12 closer to the main pulley 5. At this time, the springs 15 connected to the limit blocks 14 on both sides of the clamping plate 7 begin to push the connecting block 10, controlling the distance between the main pulley 5 and the auxiliary pulley 12. When the elevator's traction device malfunctions, the tension of the wire rope 17 increases, and the thrust of the spring 15 is insufficient to counteract the tension of the wire rope 17. This causes the second fixed rod 11 to move upward along the connecting block 10. When the pawl 13 moves upward with the second fixed rod 11 and contacts the ratchet 8, the pawl 13 restricts the rotation of the ratchet 8, thereby reducing the rotational speed of the main rope wheel 5 and preventing the wire rope 17 from breaking due to insufficient tension. Therefore, baffles 23 need to be installed on both sides of the clamp 7 to restrict the wire rope 17, thereby improving the deceleration effect of the elevator rope wheel.

[0041] Furthermore, when internal parts need to be replaced, the controller 18 activates the first motor 201, causing its output to control the first gear 202, thereby driving the second gear 204 fixed on the third rotating rod 203. When the first gear 202 and the second gear 204 rotate, the first fixed blocks 205 on both sides of them rotate accordingly, thereby driving the two fourth rotating rods 206 to rotate. At this time, the first rotating block 207 will be driven to rotate in the same direction as the first fixed block 205. The two fifth rotating rods 208 rotate on the base 1. When the first rotating block 207 rotates, it will simultaneously control the second rotating blocks 209 on both sides to move away from the slide plate 3. At this time, the second rotating blocks 209 can release the limit on the slide plate 3, thereby making it convenient for the staff to use the handle 21 to pull out the slide plate 3 and replace the damaged internal parts.

[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An elevator rope pulley deceleration damping device comprising a base (1), characterized in that: The left and right sides of the base (1) are slidably connected with sliding plates (3), the adjacent upper sides of the two sliding plates (3) are rotatably connected with first rotating rods (4), the middle part of the outer wall of the first rotating rod (4) is fixedly connected with a main rope wheel (5), the upper sides of the adjacent sides of the two sliding plates (3) are fixedly connected with a plurality of first fixed rods (6) at equal intervals, the adjacent sides of the plurality of first fixed rods (6) are fixedly connected with the same clamping plates (7), one end of the first rotating rod (4) penetrates the two clamping plates (7) in sequence, the left and right sides of the outer wall of the first rotating rod (4) are fixedly connected with ratchets (8), the lower sides of the sides away from each other of the two clamping plates (7) are rotatably connected with second rotating rods (9) at the front ends, the outer walls of the two second rotating rods (9) are fixedly connected with connecting blocks (10), the bottom ends of the two connecting blocks (10) are fixedly connected with the same second fixed rod (11), the middle part of the outer wall of the second fixed rod (11) is rotatably connected with a secondary rope wheel (12), the left and right sides of the outer wall of the second fixed rod (11) are fixedly connected with pawls (13), the two ratchets (8) are meshedly connected with the corresponding pawls (13) respectively, and the inner top of the base (1) is provided with a dismounting mechanism (2).

2. An elevator sheave deceleration damping device according to claim 1, characterized in that The dismounting mechanism (2) comprises a first motor (201), the bottom end of the first motor (201) is fixedly connected to the inner bottom of the base (1), the output end of the first motor (201) is fixedly connected with a first gear (202), the inner wall bottom middle right side of the base (1) is rotatably connected with a third rotating rod (203), the top end of the third rotating rod (203) is fixedly connected with a second gear (204), the first gear (202) is meshedly connected with the second gear (204), the sides away from each other of the first gear (202) and the second gear (204) are fixedly connected with first fixed blocks (205), the sides away from each other of the two first fixed blocks (205) are rotatably connected with fourth rotating rods (206), the middle parts of the two fourth rotating rods (206) are rotatably connected with first rotating blocks (207), the inner front sides left and right ends of the base (1) are rotatably connected with fifth rotating rods (208), the top ends of the two fifth rotating rods (208) are rotatably connected with the corresponding first rotating blocks (207) respectively, and the outer wall top ends of the two fifth rotating rods (208) are rotatably connected with second rotating blocks (209).

3. The elevator sheave deceleration cushioning device of claim 1, wherein: The sides away from each other of the two clamping plates (7) are fixedly connected with limiting blocks (14), one side of the two limiting blocks (14) is fixedly connected with springs (15), and the other ends of the two springs (15) are fixedly connected with the corresponding connecting blocks (10).

4. The elevator sheave deceleration cushioning device of claim 1, wherein: The rear sides of the two sliding plates (3) are fixedly connected with handles (21), and the middle parts of the outer walls of the two handles (21) are fixedly connected with protective sleeves (22).

5. The elevator sheave deceleration cushioning device of claim 2, wherein: The inner part of the main rope wheel (5) and the auxiliary rope wheel (12) is rotationally connected with a plurality of steel wire ropes (17), and the sides away from each other of the two second rotation blocks (209) are fixedly connected with rubber pads (16).

6. The elevator sheave deceleration cushioning device of claim 1, wherein: The adjacent sides of the two clamping plates (7) are provided with the same baffle (23) at the front and rear ends, and the left and right sides of the two baffles (23) are threadedly connected with fixing caps (24).

7. The elevator sheave deceleration cushioning device of claim 1, wherein: The inner side top of the base (1) is threadedly connected with positioning rods (19) at equal intervals around, and the top ends of the plurality of positioning rods (19) are fixedly connected with nuts (20).

8. The elevator sheave deceleration cushioning device of claim 1, wherein: The right side of the base (1) is fixedly connected with a controller (18), and the controller (18) is electrically connected with the first motor (201).

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