Strong-drive elevator suspension wheel rope winding structure

Abstract

The utility model relates to the technical field of forcibly-driven elevators, and particularly discloses a forcibly-driven elevator suspension wheel rope winding structure which comprises an elevator shaft, a rope wheel beam is arranged on the top of the elevator shaft, and a guide wheel assembly is arranged on the rope wheel beam. A position adjusting assembly used for adjusting the position is arranged at the joint of the guide wheel assembly and the rope wheel beam, and a first steel wire rope and a second steel wire rope are wound around the guide wheel assembly. The position adjusting assembly comprises a limiting block installed on one side of the guide wheel assembly, a rotating screw rod is arranged at one end of the limiting block in a penetrating mode and is in threaded connection with the limiting block, a transmission chain wheel is fixedly connected to the outer portion of the rotating screw rod, and the surface of the transmission chain wheel is sleeved with a transmission chain. A driven chain wheel is installed in the middle of the transmission chain, and an output shaft is fixedly connected to the middle of the driven chain wheel. The position of the installed guide wheel assembly can be finely adjusted, and the adjusting process is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of forced drive elevators, in particular to a rope winding structure of a suspension wheel of a forced drive elevator. Background Technique

[0002] With the slowdown of China's population growth and the increasing proportion of the elderly in the total population, the old villa communities do not have pre - reserved hoistways for elevator installation in advance, which causes troubles for the elderly to go up and down stairs. Conventional household elevators have relatively high requirements for the top floor of the elevator. For some hoistways with lower and smaller top floors, a down - mounted forced drive structure is more suitable. The main machine is placed on one side of the elevator, and the main machine is rotated by electricity to release the steel wire rope, and the car is forcibly lifted to make the car run.

[0003] When the top floor height is relatively low and the main machine is down - mounted, in order to maximize the width of the car size and meet the legal requirement ratio of the diameter of the deflecting sheave to the steel wire rope of 25 times, when the pitch circle of the deflecting sheave is relatively large, if the steel wire rope directly passes through the deflecting sheave and is wound back to connect the car rope head device on the side of the car, in order to avoid the wheel, it has a greater impact on the car width dimension.

[0004] The existing publicly - known technical solution, an elevator with a patent publication number of CN109733974B, includes car guide rails, a main machine, a deflecting sheave device, a car bottom assembly, and a traction rope; the car guide rails are symmetrically arranged on both sides of the hoistway; the main machine is fixed at the bottom of the hoistway; the deflecting sheave device is fixedly arranged on the upper part of the car guide rails; the car bottom assembly includes a car bottom support member, and the car bottom support member can reciprocally slide along the axial direction of the car guide rails on the car guide rails; one end of the traction rope is connected to the main machine, and the other end of the traction rope passes around the deflecting sheave device and then is connected to the car rope head plate. This elevator no longer needs to reserve support beam holes and ring beams on the top floor of the hoistway, reduces the requirements for the top floor height of the hoistway for elevator installation, saves the installation space on the top floor, and the force - bearing of the elevator structure is more stable.

[0005] When the above - mentioned technical solution is actually implemented, the deflecting sheave is above the car through the way of winding back the steel wire rope by the deflecting sheave group, which does not affect the car width. However, the deflecting sheave used in the deflecting sheave group is often directly fixed on the cross - beam, and it is relatively inconvenient to adjust subsequently once the installation position shifts. Summary of the Invention

[0006] The purpose of the utility model is to provide a rope winding structure of a suspension wheel of a forced drive elevator, which can finely adjust the position of the deflecting sheave assembly after installation, and the adjustment process is simple and convenient, so as to solve the problems raised in the above - mentioned background technique.

[0007] To achieve the above object, the utility model provides the following technical solutions: A rope winding structure for a strong drive elevator suspension wheel, including an elevator hoistway. A rope wheel beam is provided at the top of the elevator hoistway, and a guide wheel assembly is provided on the rope wheel beam. A position adjustment assembly for adjusting the position is provided at the connection between the guide wheel assembly and the rope wheel beam. A first steel wire rope and a second steel wire rope are wound around the guide wheel assembly. One end of the first steel wire rope is connected with a first connection rope head, and one end of the second steel wire rope is connected with a second connection rope head. An elevator main machine is installed on one side of the elevator hoistway, and a main machine protective cover for protection is provided outside the elevator main machine;

[0008] The position adjustment assembly includes a limit block installed on one side of the guide wheel assembly. A rotating screw rod penetrates through one end of the limit block. The rotating screw rod is in threaded connection with the limit block, and a transmission sprocket is fixedly connected to the outside of the rotating screw rod. A transmission chain is sleeved on the surface of the transmission sprocket, and a driven sprocket is installed in the middle of the transmission chain. An output shaft is fixedly connected to the middle of the driven sprocket.

[0009] Preferably, the guide wheel assembly includes a first guide wheel, and a reverse winding wheel is connected to one side of the first guide wheel. The axis of the reverse winding wheel coincides with that of the first guide wheel. A third guide wheel is arranged in parallel on one side of the reverse winding wheel, and a fourth guide wheel is arranged on one side of the third guide wheel. A second guide wheel is arranged on one side of the fourth guide wheel.

[0010] Preferably, the first guide wheel and the second guide wheel are arranged in the same vertical plane, the third guide wheel and the fourth guide wheel are arranged in the same vertical plane. The first steel wire rope is wound around the surfaces of the first guide wheel, the second guide wheel and the reverse winding wheel, and the second steel wire rope is wound around the surfaces of the third guide wheel and the fourth guide wheel.

[0011] Preferably, a drum is installed at the power output end of the elevator main machine, and the ends of the second steel wire rope and the first steel wire rope are both connected to the drum.

[0012] Preferably, connecting rods are fixedly connected to the middles of the first guide wheel, the second guide wheel, the third guide wheel and the fourth guide wheel. A slide bar slidably installed inside the limit block is arranged on one side of the connecting rod, and the other side of the connecting rod is connected to the end of the rotating screw rod through a bearing.

[0013] Preferably, the transmission sprockets on the first guide wheel and the third guide wheel are in sprocket transmission with the driven sprocket through the transmission chain, and the transmission sprockets on the second guide wheel and the fourth guide wheel are in sprocket transmission with the driven sprocket through the transmission chain. The two groups of driven sprockets are synchronously rotated through the output shaft.

[0014] Preferably, a buffer is provided below the rope wheel beam, and a speed limiter is installed on the inner wall of the elevator hoistway.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] 1. By means of the provided position adjustment assembly, when a set of rotating screws rotates, the driven sprocket can be driven to rotate through the transmission chain. Under the action of the driven sprocket, the output shaft rotates. Thus, the remaining three sets of rotating screws can be driven to rotate simultaneously by a set of rotating screws, and all the guide wheels on the guide wheel assembly can be symmetrically moved, facilitating the adjustment of the position of the guide wheel assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is the overall structural view of the present utility model;

[0019] Figure 2 is the winding structure schematic diagram of the first guide wheel and the second guide wheel of the present utility model;

[0020] Figure 3 is the winding structure schematic diagram of the third guide wheel and the fourth guide wheel of the present utility model;

[0021] Figure 4 is of the present utility model Figure 1 magnified view of A in.

[0022] DESCRIPTION OF THE REFERENCE NUMERALS:

[0023] 1, elevator shaft; 2, rope wheel beam; 3, elevator main machine; 4, guide wheel assembly; 401, first guide wheel; 402, second guide wheel; 403, third guide wheel; 404, fourth guide wheel; 405, reverse winding wheel; 406, connecting rod; 5, position adjustment assembly; 501, rotating screw; 502, limit block; 503, sliding rod; 504, driving sprocket; 505, driven sprocket; 506, transmission chain; 507, output shaft; 6, main machine protective cover; 7, first steel wire rope; 8, first connection rope end; 9, drum; 10, speed limiter; 11, second connection rope end; 12, second steel wire rope; 13, buffer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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.

[0025] The present invention provides a technical solution:

[0026] Please refer to Figures 1 to 4 , a rope winding structure for a strong-drive elevator suspension wheel, including an elevator hoistway 1, a rope wheel beam 2 is provided at the top of the elevator hoistway 1, and a guide wheel assembly 4 is provided on the rope wheel beam 2. A position adjusting assembly 5 for adjusting the position is provided at the connection between the guide wheel assembly 4 and the rope wheel beam 2. A first steel wire rope 7 and a second steel wire rope 12 are wound around the guide wheel assembly 4. One end of the first steel wire rope 7 is connected with a first connection rope head 8, and one end of the second steel wire rope 12 is connected with a second connection rope head 11. An elevator main machine 3 is installed on one side of the elevator hoistway 1, and a main machine protective cover 6 for protection is provided outside the elevator main machine 3;

[0027] The position adjusting assembly 5 includes a limit block 502 installed on one side of the guide wheel assembly 4. One end of the limit block 502 is provided with a rotating screw 501. The rotating screw 501 is threadedly connected with the limit block 502, and a transmission sprocket 504 is fixedly connected to the outside of the rotating screw 501. A transmission chain 506 is sleeved on the surface of the transmission sprocket 504, and a driven sprocket 505 is installed in the middle of the transmission chain 506. A output shaft 507 is fixedly connected to the middle of the driven sprocket 505.

[0028] By adopting the above technical solution, when adjusting the position of the guide wheel, in order to maintain the balance of the elevator, the guide wheel is balanced with respect to the car. If the width between the guide wheel and the car is not matched, the rotating screw 501 can be rotated, driving the transmission sprocket 504 to rotate. Thus, the driven sprocket 505 is driven to rotate through the transmission chain 506. At this time, the output shaft 507 can be driven to rotate under the action of the driven sprocket 505. Thus, a group of rotating screws 501 can drive the remaining three groups of rotating screws 501 to rotate at the same time, and the end of the rotating screw 501 can be pushed into the limit block 502, and the guide wheel assembly 4 can be pushed to move, facilitating the adjustment of the position of the guide wheel assembly 4.

[0029] Specifically, as Figure 4As shown in the figure, the guide wheel assembly 4 includes a first guide wheel 401, and a reverse winding wheel 405 is connected to one side of the first guide wheel 401. The axis of the reverse winding wheel 405 coincides with that of the first guide wheel 401. A third guide wheel 403 is arranged in parallel on one side of the reverse winding wheel 405, a fourth guide wheel 404 is arranged on one side of the third guide wheel 403, and a second guide wheel 402 is arranged on one side of the fourth guide wheel 404;

[0030] The first guide wheel 401 and the second guide wheel 402 are arranged in the same vertical plane, the third guide wheel 403 and the fourth guide wheel 404 are arranged in the same vertical plane. The first steel wire rope 7 is wound on the surfaces of the first guide wheel 401, the second guide wheel 402 and the reverse winding wheel 405. The second steel wire rope 12 is wound on the surfaces of the third guide wheel 403 and the fourth guide wheel 404. A drum 9 is installed at the power output end of the elevator main machine 3, and the ends of the second steel wire rope 12 and the first steel wire rope 7 are both connected to the drum 9;

[0031] Connecting rods 406 are fixedly connected to the middles of the first guide wheel 401, the second guide wheel 402, the third guide wheel 403 and the fourth guide wheel 404. Slide rods 503 which are slidably installed inside the limit blocks 502 are arranged on one side of the connecting rods 406. The other sides of the connecting rods 406 are connected to the ends of the rotating screws 501 through bearings. The driving sprockets 504 on the first guide wheel 401 and the third guide wheel 403 are in sprocket transmission with the driven sprockets 505 through transmission chains 506. The driving sprockets 504 on the second guide wheel 402 and the fourth guide wheel 404 are in sprocket transmission with the driven sprockets 505 through transmission chains 506. The two groups of driven sprockets 505 are synchronously rotated through an output shaft 507. A buffer 13 is arranged below the rope wheel beam 2, and a speed limiter 10 is installed on the inner wall of the elevator shaft 1.

[0032] By adopting the above technical solution, the first steel wire rope 7 goes from the elevator main machine 3 to the first guide wheel 401, to the second guide wheel 402, and then to the reverse winding wheel 405. The reverse winding wheel 405 and the first guide wheel 401 are installed on a group of connecting rods 406, but the reverse winding wheel 405 and the first guide wheel 401 can rotate independently. Finally, it is connected to the first connecting rope head 8 and fixed to the car. The second steel wire rope 12 directly goes from the elevator main machine 3 to the fourth guide wheel 404 and then directly to the second connecting rope head 11, realizing the installation work of the guide wheel assembly 4.

[0033] Working principle: The first steel wire rope 7 runs from the elevator main machine 3 to the first guide pulley 401, then to the second guide pulley 402, and then to the reverse winding pulley 405. The reverse winding pulley 405 and the first guide pulley 401 are installed on a set of connecting rods 406, but the reverse winding pulley 405 and the first guide pulley 401 can rotate independently. Finally, it is connected to the first rope socket 8 and fixed to the car. The second steel wire rope 12 directly runs from the elevator main machine 3 to the fourth guide pulley 404 and then directly to the second rope socket 11 to complete the installation of the guide pulley assembly 4. At this time, when the rotating screw 501 rotates, it can drive the driving sprocket 504 to rotate. Thus, the driven sprocket 505 is driven to rotate through the drive chain 506. At this time, the output shaft 507 can be driven to rotate under the action of the driven sprocket 505. Thus, the remaining three sets of rotating screws 501 can be driven to rotate simultaneously by a set of rotating screws 501. The end of the rotating screw 501 can be pushed into the limit block 502, and the connecting rod 406 can be pushed to move within the limit block 502. Thus, the slide rod 503 can be driven to move within the limit block 502 to adjust the position of the connecting rod 406, and thus drive the guide pulley to adjust its position.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A strong drive elevator suspension wheel roping structure, comprising an elevator shaft (1), characterized in that: A sheave beam (2) is provided at the top of the elevator shaft (1), and a guide wheel assembly (4) is provided on the sheave beam (2); a position adjustment assembly (5) for adjusting the position is provided at the connection between the guide wheel assembly (4) and the sheave beam (2); a first steel wire rope (7) and a second steel wire rope (12) are wound around the guide wheel assembly (4); one end of the first steel wire rope (7) is connected to a first connecting rope end (8), and one end of the second steel wire rope (12) is connected to a second connecting rope end (11); an elevator main unit (3) is installed on one side of the elevator shaft (1), and a main unit protection cover (6) for protection is provided on the outside of the elevator main unit (3); The position adjustment assembly (5) comprises a limit block (502) mounted on one side of the guide wheel assembly (4), and a rotating screw (501) is passed through one end of the limit block (502), the rotating screw (501) is threadedly connected to the limit block (502), and a transmission sprocket (504) is fixedly connected to the outside of the rotating screw (501), a transmission chain (506) is sleeved on the surface of the transmission sprocket (504), and a passive sprocket (505) is mounted in the middle of the transmission chain (506), and an output shaft (507) is fixedly connected to the middle of the passive sprocket (505).

2. A strong drive elevator suspension wheel rope winding structure according to claim 1, characterized in that: The guide wheel assembly (4) comprises a first guide wheel (401), and a rewinding wheel (405) is connected to one side of the first guide wheel (401), the axes of the rewinding wheel (405) and the first guide wheel (401) coincide with each other, a third guide wheel (403) is arranged in parallel to one side of the rewinding wheel (405), a fourth guide wheel (404) is arranged to one side of the third guide wheel (403), and a second guide wheel (402) is arranged to one side of the fourth guide wheel (404).

3. A strong drive elevator suspension wheel rope winding structure according to claim 2, characterized in that: The first guide wheel (401) and the second guide wheel (402) are arranged in the same vertical plane, the third guide wheel (403) and the fourth guide wheel (404) are arranged in the same vertical plane, the first steel wire rope (7) is wound around the surfaces of the first guide wheel (401), the second guide wheel (402) and the rewinding wheel (405), and the second steel wire rope (12) is wound around the surfaces of the third guide wheel (403) and the fourth guide wheel (404).

4. A strong drive elevator suspension wheel rope winding structure according to claim 3, characterized in that: A drum (9) is installed at the power output end of the elevator main unit (3), and the ends of the second steel wire rope (12) and the first steel wire rope (7) are both connected to the drum (9).

5. A strong drive elevator suspension wheel rope winding structure according to claim 4, characterized in that: The middle parts of the first guide wheel (401), the second guide wheel (402), the third guide wheel (403) and the fourth guide wheel (404) are all fixedly connected with a connecting rod (406); one side of the connecting rod (406) is provided with a sliding rod (503) slidably mounted inside the limit block (502); the other side of the connecting rod (406) is connected to the end of the rotating screw rod (501) via a bearing.

6. A strong drive elevator suspension wheel rope winding structure according to claim 5, characterized in that: The transmission sprockets (504) on the first guide wheel (401) and the third guide wheel (403) realize sprocket transmission with the driven sprocket (505) via a transmission chain (506); the transmission sprockets (504) on the second guide wheel (402) and the fourth guide wheel (404) realize sprocket transmission with the driven sprocket (505) via a transmission chain (506); the two groups of driven sprockets (505) realize synchronous rotation via an output shaft (507).

7. A strong drive elevator suspension wheel rope winding structure according to claim 1, characterized in that: A buffer (13) is provided below the sheave beam (2), and a speed limiter (10) is installed on the inner wall of the elevator shaft (1).

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