CN213622812U

CN213622812U - Double-damping structure for bottom wheel of elevator car

Info

Publication number: CN213622812U
Application number: CN202022660840.4U
Authority: CN
Inventors: 李婧
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-11-17
Filing date: 2020-11-17
Publication date: 2021-07-06
Anticipated expiration: 2030-11-17

Abstract

The utility model discloses a double-damping structure of elevator car bottom wheels, which relates to the technical field of elevators, and comprises car bottom wheels, wherein the car bottom wheels are provided with two symmetrical parts which are distributed at two sides of a connecting beam, the car bottom beam is arranged above the connecting beam, fixed plates are correspondingly arranged above the connecting beam and below the car bottom beam respectively, the two fixed plates are fixedly connected with a stress spring, a damper is arranged in the middle of the stress spring, the connecting beam and the car bottom beam respectively extend out of a supporting shaft and a second supporting shaft, the second connecting spring and a second damper are used for connecting the supporting shaft and the second supporting shaft, a shock-proof pad is arranged inside the car bottom beam, when an elevator operates, the second stress spring and the stress spring are both compressed to absorb the impact force of the operation of the elevator, the second damper and the damper can generate damping effect to slow down the compression of the elevator, and further control the tightness and rebound force of the second stress spring and the stress spring, the impact between the connecting beam and the car bottom beam is reduced, so that the vibration is reduced.

Description

Double-damping structure for bottom wheel of elevator car

Technical Field

The utility model relates to an elevator technical field, concretely relates to two shock-absorbing structure of elevator sedan-chair return pulley.

Background

In order to adapt to or reduce the top layer height of elevator well, the standard that accords with the elevator again and is about top layer height is tested and is accepted the requirement, the elevator can choose for use collet formula design, in collet formula design, can be at car bottom installation sedan-chair return pulley, realize the car motion through the sedan-chair return pulley, the general function of current sedan-chair return pulley is simple, can realize the motion of car, but the shock attenuation effect is poor and noise at work is big, because the sedan-chair return pulley sets up the bottom at the car, the vibrations of pulley are passed to the car easily, when the passenger carries on the elevator, the shock sensation is obvious.

SUMMERY OF THE UTILITY MODEL

In order to overcome prior art's above-mentioned defect, the utility model provides a two shock-absorbing structure of elevator sedan-chair return pulley, when using, two sedan-chair return pulleys are connected on the tie-beam, multiunit atress spring coupling on roof beam connection and the sedan-chair return beam pass through two bumper shock absorbers, when the function, the spring can receive the earlier atress, absorb elevator moving impact force through the elasticity, the attenuator is used for controlling spring elasticity and rebound dynamics, in order to guarantee the shock attenuation of sedan-chair return pulley, the inside antivrbration pad of sedan-chair return pulley can absorb the vibration after weakening and accomplish the secondary shock attenuation, the inside soundproof cotton of car lower wall can absorb partial noise, the multiunit reduction gear can guarantee the connection of beam connection and sedan-chair return pulley, and still can function when the part is inefficacy, in order to solve the problem that proposes among the above-mentioned background.

In order to achieve the above object, the utility model provides a following technical scheme: a double-damping structure for a bottom wheel of an elevator car comprises a bottom wheel of the elevator car, wherein the bottom wheel of the elevator car is provided with two symmetrical supporting shafts which are distributed on two sides of a connecting beam, the bottom wheel of the elevator car is connected with the connecting beam through a connecting shaft, the left side and the right side of the connecting beam are respectively and fixedly connected with two supporting shafts, the bottom beam of the elevator car is arranged above the connecting beam, fixing plates are respectively and correspondingly arranged above the connecting beam and below the bottom beam of the elevator car, the two fixing plates are fixedly connected with stress springs, dampers are arranged between the stress springs and are fixed on the two fixing plates, the left side and the right side of the bottom beam of the elevator car are respectively and fixedly connected with two second supporting shafts, the supporting shafts and the second supporting shafts respectively penetrate through upper and lower shaft holes of the dampers, each damper comprises an upper shaft, a lower shaft, a second fixing plate, a second stress spring and a second damper, the upper shaft and the lower shaft are respectively and fixedly connected with the second fixing plate, and the, sedan-chair floorbar top fixedly connected with car lower wall, the inside antivrbration pad that is equipped with of sedan-chair floorbar, the inside soundproof cotton that is equipped with of car lower wall.

In a preferred embodiment, the connecting shaft and the car bottom wheel are fixedly connected by a flat key, the car bottom wheel is connected inside the connecting beam, the connecting shaft is respectively connected to two walls of the connecting beam, the connecting shaft is provided with a bearing on the inner wall of the connecting beam, the bearing is connected with a bearing end cover, and the bearing end cover is fixed on the outer wall of the connecting beam.

In a preferred embodiment, the upper shaft is pressed between the upper shaft and the bottom beam by a shaft cover, the supporting shaft is a threaded shaft at one end far away from the bottom beam, the upper shaft is fixed on the threaded shaft through a nut, and the lower shaft is fixed in the same way as the upper shaft.

In a preferred embodiment, the fixing plate is circular, the fixing plate, the connecting beam and the bottom beam are fixedly connected by a taper pin, and the taper of the taper pin is 1: and 50, the conical pins are distributed in an annular array, the stressed springs and the dampers connected between the two fixing plates form second shock absorbers, and the number of the second shock absorbers is four.

In a preferred embodiment, the car bottom beam is the lower part of the elevator installation frame, four shock absorbers are arranged, and the shock absorbers are distributed in a pairwise symmetrical mode to connect the connecting beam and the car bottom beam.

In a preferred embodiment, the number of the bottom wheels is two, the bottom wheels are symmetrically distributed on two sides of the connecting beam, the connecting beam is in a hollow mode when being connected with the bottom wheels, and the connecting beam is in a hollow box mode when not being connected with the bottom wheels.

The utility model discloses a technological effect and advantage:

1. connect on the tie-beam through two sedan-chair return pulleys, let the sedan-chair return pulley have more connection faces, and then let two atress spring coupling roof beams connect and sedan-chair return beam on two bumper shock absorbers, when the function, the spring can atress earlier, absorb elevator moving impact force through the elasticity, and also can atress function with each atress spring complex attenuator, thickness degree through attenuator damping hole and oil slows down rate of movement and then control spring elasticity and rebound dynamics, thereby slow down the vibrations of elevator function, vibration and the partial noise that produces after can absorbing and weakening through the inside antivrbration pad of sedan-chair return beam and the inside soundproof cotton sedan-chair of car lower wall, and then accomplish secondary shock attenuation, compared with the prior art, there is the progress that slows down sedan-chair return pulley vibrations and a little sound insulation many times.

2. Come the tie-beam through the multiunit bumper shock absorber to connect and sedan-chair floorbar, let slowing down of sedan-chair bottom wheel vibrations more obvious, the multiunit bumper shock absorber can guarantee simultaneously that the connection of roof beam connection and sedan-chair floorbar is more stable to and still can function when partial bumper shock absorber became invalid, and then guarantee operation safety, compare with prior art, had the more obvious progress of shock attenuation effect.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a main sectional view of the connection beam of the present invention;

FIG. 3 is a partial sectional view taken along line A-B of the present invention;

FIG. 4 is a cross-sectional view taken along line C-D of the present invention;

fig. 5(a) is a connection diagram of the fixing plate of the present invention;

fig. 5(b) is a top view of the fixing plate of the present invention;

fig. 6 is a main sectional view of the car bottom wheel of the present invention.

The reference signs are: 1. the car bottom wheel, 2, a connecting beam, 3, a connecting shaft, 4, a supporting shaft, 5, a fixing plate, 6, a stress spring, 7, a damper, 8, a car bottom beam, 9, a second supporting shaft, 10, a shock absorber, 11, an upper shaft, 12, a lower shaft, 13, a second fixing plate, 14, a second stress spring, 15, a second damper, 16, a car lower wall, 17, a vibration pad, 18, soundproof cotton, 19, a flat key, 20, a bearing, 21, a bearing end cover, 22, a shaft cover, 23 and a nut.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1-6, the utility model provides a two shock-absorbing structure of elevator sedan-chair return pulley, including sedan-chair return pulley 1, sedan-chair return pulley 1 is equipped with two symmetric distributions in tie-beam 2 both sides, sedan-chair return pulley 1 and tie-beam 2 link to each other with connecting axle 3, the tie-beam 2 left and right sides is two supporting shafts 4 of fixedly connected with respectively, tie-beam 2 top is equipped with sedan-chair return beam 8, tie-beam 2 top and sedan-chair return beam 8 below correspond respectively and are equipped with fixed plate 5, two fixed plate 5 fixedly connected with atress spring 6, be equipped with attenuator 7 in the middle of the atress spring 6, attenuator 7 is fixed on two fixed plates 5, sedan-chair return beam 8 left and right sides is two second supporting shafts 9 of fixedly connected with respectively, supporting shaft 4 and second supporting shaft 9 pass the upper and lower shaft hole of bumper shock absorber 10 respectively, bumper shock absorber 10 is by upper shaft 11, The elevator car bottom beam comprises a lower shaft 12, a second fixing plate 13, a second stress spring 14 and a second damper 15, wherein the upper shaft 11 and the lower shaft 12 are respectively and fixedly connected with the second fixing plate 13, the second stress spring 14 and the second damper 15 are respectively fixed between the two second fixing plates 13, a car bottom wall 16 is fixedly connected above the car bottom beam 8, a shock pad 17 is arranged inside the car bottom beam 8, and soundproof cotton 18 is arranged inside the car bottom wall 16.

The connecting shaft 3 and the car bottom wheel 1 are fixedly connected through a flat key 19, the car bottom wheel 1 is connected inside the connecting beam 2, the connecting shaft 3 is connected to two walls of the connecting beam 2 respectively, the connecting shaft 3 is provided with a bearing 20 on the inner wall of the connecting beam 2, the bearing 20 is connected with a bearing end cover 21, the bearing end cover 21 is fixed on the outer wall of the connecting beam 2, the flat key 19 can fix the position of the car bottom wheel 1 on the connecting shaft 3, and the bearing 20 and the bearing end cover 21 are matched with the connecting shaft 3 and the car bottom wheel 1 to rotate.

The upper shaft 11 is tightly pressed between the upper shaft and the car bottom beam 8 through a shaft cover 22, the end, far away from the car bottom beam 8, of the supporting shaft 4 is a threaded shaft, the upper shaft 11 is fixed through a nut 23 and is not located on the threaded shaft, the fixing mode of the lower shaft 12 is the same as that of the upper shaft 11, connection between the car bottom beam 8 and the connecting beam 2 is guaranteed, and meanwhile the axial position of the shock absorber 10 is fixed.

The fixed plate 5 is circular, the fixed plate 5, the connecting beam 2 and the car bottom beam 8 are fixedly connected through the taper pin, and the taper of the taper pin is 1: and 50, the conical pins are distributed in an annular array, the stressed springs 6 and the dampers 7 connected between the two fixing plates 5 form second shock absorbers, and the number of the second shock absorbers is four, so that the reinforced car bottom beam 8 is connected with the connecting beam 2.

Sedan-chair floorbar 8 is the lower part of elevator installing frame, bumper shock absorber 10 is equipped with four, two bisymmetry distribution of bumper shock absorber 10 connect tie-beam 2 and sedan-chair floorbar 8.

The sedan-chair return pulley 1 has two, sedan-chair return pulley 1 symmetric distribution is in tie-beam 2 both sides, tie-beam 2 is the cavity pattern when connecting sedan-chair return pulley 1, tie-beam 2 is the cavity box pattern when not connecting with sedan-chair return pulley 1, increases tie-beam 2's load.

The implementation mode is specifically as follows:

when the elevator operates, the second stress spring 14 on the shock absorber 10 and the stress spring 6 on the second shock absorber are compressed to absorb the impact force of the operation of the elevator, the second damper 15 and the damper 7 also operate, the two dampers can reduce the moving speed by the viscosity degree of the damping holes and the oil, namely, a damping effect is generated, the rapid compression is reduced to control the tightness and the rebound force of the second stress spring 14 and the stress spring 6, the impact between the connecting beam 2 connected with the car bottom wheel 1 and the lower car bottom beam 8 of the elevator installing frame is reduced, so that the shock is reduced, the shock-proof pad inside the car bottom beam 8 can further absorb the shock, the shock transmitted to the car is reduced, the soundproof cotton 18 inside the lower car wall 16 can absorb part of the noise, and the multiple sets of shock absorbers 10 and the second shock absorbers can ensure that the connection between the car bottom beam 8 and the connecting beam 2 is firmer, and can still operate when partial bumper shock absorber is out of work, this embodiment has specifically solved the problem that sedan-chair bottom wheel vibrations that exist among the prior art passed to the car.

The utility model discloses the theory of operation: referring to fig. 1-6, when the elevator is in operation, the second stressed spring 14 and the stressed spring 6 are both compressed to absorb the impact force of the elevator operation, the second damper 15 and the damper 7 can generate a damping effect to slow down the compression of the second stressed spring 14 and the second stressed spring 6, and further control the tightness and the rebound force of the second stressed spring 14 and the second stressed spring 6 to reduce the impact between the connecting beam 2 and the car bottom beam 8, so as to slow down the vibration.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a two shock-absorbing structure of elevator sedan-chair return pulley, includes sedan-chair return pulley (1), its characterized in that: sedan-chair return pulley (1) is equipped with two symmetric distribution in tie-beam (2) both sides, sedan-chair return pulley (1) and tie-beam (2) link to each other with connecting axle (3), the tie-beam (2) left and right sides is two supporting shaft (4) of fixedly connected with respectively, tie-beam (2) top is equipped with sedan-chair return beam (8), tie-beam (2) top and sedan-chair return beam (8) below correspond respectively and are equipped with fixed plate (5), two fixed plate (5) fixedly connected with atress spring (6), be equipped with attenuator (7) in the middle of atress spring (6), attenuator (7) are fixed on two fixed plate (5), sedan-chair return beam (8) left and right sides is two second back shaft (9) of fixedly connected with respectively, upper and lower shaft hole of bumper shock absorber (10) is passed respectively to back shaft (4) and second back shaft (9), bumper shock absorber (10) are by upper shaft (11), The lower shaft (12), the second fixed plate (13), the second atress spring (14) and the second attenuator (15), the upper shaft (11) and the lower shaft (12) fixedly connected with second fixed plate (13) separately, be fixed with second atress spring (14) and second attenuator (15) between two second fixed plates (13) respectively, sedan-chair floorbar (8) top fixedly connected with car lower wall (16), sedan-chair floorbar (8) inside is equipped with antivrbration pad (17), the inside soundproof cotton (18) that is equipped with of car lower wall (16).

2. The double-damping structure for the bottom wheels of the elevator car as claimed in claim 1, wherein: connecting axle (3) and sedan-chair return pulley (1) are with flat key (19) fixed connection, sedan-chair return pulley (1) is at tie-beam (2) internal connection, connecting axle (3) are connected to tie-beam (2) two walls respectively, connecting axle (3) are equipped with bearing (20) on tie-beam (2) inner wall, bearing (20) are connected with bearing end cover (21), bearing end cover (21) are fixed on tie-beam (2) outer wall.

3. The double-damping structure for the bottom wheels of the elevator car as claimed in claim 1, wherein: the upper shaft (11) is tightly pressed between the upper shaft and the car bottom beam (8) by a shaft cover (22), one end of the support shaft (4) far away from the car bottom beam (8) is a threaded shaft, the upper shaft (11) is fixed by a nut (23) so as not to be on the threaded shaft, and the fixing mode of the lower shaft (12) is consistent with that of the upper shaft (11).

4. The double-damping structure for the bottom wheels of the elevator car as claimed in claim 1, wherein: the fixed plate (5) is circular, the fixed plate (5), the connecting beam (2) and the car bottom beam (8) are fixedly connected through the taper pin, and the taper of the taper pin is 1: and 50, the conical pins are distributed in an annular array, the stressed springs (6) and the dampers (7) connected between the two fixing plates (5) form second shock absorbers, and the number of the second shock absorbers is four.

5. The double-damping structure for the bottom wheels of the elevator car as claimed in claim 1, wherein: sedan-chair floorbar (8) are the lower part of elevator installing frame, bumper shock absorber (10) are equipped with four, two bisymmetry distribution connection tie-beam (2) and sedan-chair floorbar (8) in bumper shock absorber (10).

6. The double-damping structure for the bottom wheels of the elevator car as claimed in claim 1, wherein: the sedan-chair return pulley (1) have two, sedan-chair return pulley (1) symmetric distribution is in tie-beam (2) both sides, tie-beam (2) are the cavity pattern when connecting sedan-chair return pulley (1), be the cavity box pattern when tie-beam (2) are not connected with sedan-chair return pulley (1).