Abnormal vibration and noise sensing device for elevator
By introducing external and internal support structures and vibration sensors into the elevator guide rail bracket, the problems of poor noise reduction effect and insufficient vibration sensing of the guide rail bracket are solved, enabling timely detection and alarm of abnormal vibration of the guide rail, and ensuring the safe operation of the elevator.
Patent Information
- Application Number
- CN202423323405.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing elevator guide rail supports still need to be improved in terms of noise reduction, and they lack the ability to detect abnormal vibrations of the guide rails, making it difficult to detect and deal with safety hazards in a timely manner.
The guide rail support structure consists of an outer support and an inner support, combined with rubber shock-absorbing columns and vibration sensors. Abnormal vibrations are detected by the vibration sensors inside the guide rail support, and alarms are triggered through the electrical control box and an alarm buzzer, enabling the perception and timely handling of abnormal vibrations in the guide rail.
It enhances the vibration reduction and noise reduction effect of the guide rail support, and can promptly detect and alarm abnormal vibrations of the guide rail, ensuring the safe operation of the elevator and eliminating safety hazards.
Smart Images
Figure CN223561049U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to elevator safety protection technical field, concretely relates to an elevator abnormal vibration and noise perception device. BACKGROUND
[0002] The elevator mainly comprises a traction system, a guide system, a car system, a door system, a gravity balance system, a power drag system, an electrical control system and a safety protection system, wherein the power drag system is mainly composed of a traction motor, a power supply system, a speed feedback device and a motor speed regulating device. The guide system mainly functions to limit the freedom of movement of the car and the counterweight, so that the car and the counterweight can only move up and down along the guide rail, including guide shoes, elevator guide rails and guide rail supports and other supporting components.
[0003] The noise generated by the elevator operation has a great impact on the quality of life of the residents on the floor. In order to reduce the impact of elevator noise, a relatively thick sound insulation cotton is laid on the inner wall of many elevator shafts, but the sound insulation and noise reduction effect is not ideal. Because the elevator noise mainly comes from two aspects, one is the noise generated by the motor vibration of the power drag system, and the other is the noise generated by the guide rail vibration of the guide system. However, whether it is motor noise or guide rail noise, the essence is vibration conduction, and it is conducted through the solid medium of the building itself. The motor vibration is still good to handle, and the motor vibration noise can be improved by adjusting the motor balance and adding motor seat cushion to reduce the motor vibration. However, the guide rail vibration noise has always been a technical problem of elevator noise reduction, because the car guide rail and the counterweight guide rail of the traditional elevator are directly fixed on the inner wall of the elevator shaft by expansion screws, and the vertical distance of the guide rail is relatively long. Long time operation, inevitable will have part of the guide rail loose vibration aggravation problem, not only exist noise influence, moreover still increased the elevator operation's safety hidden danger.
[0004] With the popularization of old elevator reconstruction work, part of the elevator reconstruction is installed with guide rail support under the elevator guide rail (including car guide rail and counterweight guide rail), which plays a certain effect of guide rail noise control. However, the existing guide rail support is relatively simple, and the sound insulation and noise reduction effect still needs to be strengthened. In addition, the existing guide rail support does not have the function of vibration perception, and still cannot find the safety hidden danger caused by the loosening of the guide rail in time. UTILITY MODEL CONTENTS
[0005] In view of the above situation, the utility model provides an elevator abnormal vibration and noise perception device, which can not only enhance the vibration and noise reduction effect of the guide rail support, but also has the function of abnormal vibration perception of the guide rail.
[0006] In order to realize the above purpose, the utility model adopts the following technical scheme:
[0007] The application discloses an elevator abnormal vibration and noise sensing device, which comprises an elevator shaft, an elevator guide rail and a guide rail support, the elevator guide rail is fixedly connected on the front side of the guide rail support, and the guide rail support is fixedly connected on the inner side wall of the elevator shaft through a support mounting plate and expansion screws.
[0008] The guide rail support is composed of a rear-opening "H" shaped outer support and a front-opening "H" shaped inner support, the upper and lower edges of the opening of the outer support are integrally formed with inward 90-degree bent inner flange parts, the upper and lower edges of the opening of the inner support are integrally formed with outward 90-degree bent outer flange parts, the opening of the inner support is movably sleeved on the inner side of the opening of the outer support, and the two outer flange parts of the inner support and the two inner flange parts of the outer support are fastened and connected through a connecting screw I sleeved with a rubber shock absorbing column I.
[0009] The upper and lower parts of the rear side wall of the inner support are fixedly connected with the support mounting plate through a connecting screw II sleeved with a rubber shock absorbing column II, a vibration sensor is mounted on the rear side of the outer support, the elevator guide rail is vertically fixed and laid on the inner side wall of the elevator shaft through a plurality of vertically spaced guide rail supports, one vibration sensor is mounted in each guide rail support, a traction motor room is arranged on the top of the elevator shaft, and an electrical control box for receiving and displaying the detection signals of the vibration sensors is arranged in the traction motor room.
[0010] Further, the elevator guide rail is fixedly connected on the front side of the guide rail support through a rail fixing piece and a pressing screw, and a screw through hole I for penetrating the pressing screw is formed in the front side wall of the outer support.
[0011] Further, the two outer flange parts of the inner support and the two inner flange parts of the outer support are correspondingly and cooperatively formed with screw through holes II for penetrating the connecting screw I.
[0012] Further, the upper and lower parts of the rear side wall of the inner support are correspondingly formed with screw through holes III for penetrating the connecting screw II, and the upper and lower parts of the front side wall of the support mounting plate are correspondingly formed with internal thread holes for screwing the connecting screw II.
[0013] Further, the upper and lower parts of the support mounting plate are further formed with screw through holes IV for penetrating the expansion screws, and the centers of the screw through holes IV and the screw through holes I are on the same axis.
[0014] Further, the vibration sensor adopts a vibration acceleration sensor, a horizontally arranged vibration spring is fixedly connected on the rear side wall of the outer support, and a vibration sensor is mounted on the rear end of the vibration spring.
[0015] Further, the vibration spring is a tower spring with a large front end and a small rear end, the front end of the tower spring is fixedly connected with the rear side wall of the outer support through a locking screw one, and the rear end of the tower spring is fixedly connected with the mounting end of the vibration sensor through a locking screw two.
[0016] Further, a threading hole for threading the signal line of the vibration sensor is formed in the rear side wall of the inner support, a rubber wire protection ring is arranged in the threading hole, the aperture size of the rubber wire protection ring is larger than the wire diameter size of the signal line of the vibration sensor, a certain length of activity allowance is reserved for the signal line of the vibration sensor on the inner side of the rubber wire protection ring, and the other end of the signal line of each vibration sensor is electrically connected with the electrical control box.
[0017] Further, an indicator lamp screen for indicating the signal state of the vibration sensor is arranged on the front panel of the electrical control box, each indicator lamp on the indicator lamp screen corresponds to each vibration sensor, the number is equal, and an alarm buzzer is further arranged on the front panel of the electrical control box and used for issuing a vibration abnormality alarm.
[0018] The utility model also includes other components that enable normal use, which are conventional means in the field, in addition, the devices or components not limited in the utility model, such as the vibration acceleration sensor, the electrical control box and the internal circuit arrangement, the indicator lamp screen and the alarm buzzer, all adopt the prior art in the field.
[0019] The utility model has the advantages of the following:
[0020] The elevator abnormal vibration and noise sensing device can further enhance the vibration and noise reduction effect of the elevator guide rail support, has the guide rail abnormal vibration sensing and alarm reminding functions, helps the elevator maintenance personnel to better master the guide rail abnormal situation, timely handles and eliminates the safety hidden danger, ensures the safe operation of the elevator, and guarantees the personal and property safety of the user. BRIEF DESCRIPTION OF DRAWINGS
[0021] Figure 1 It is a structure schematic view of the elevator abnormal vibration and noise sensing device in the embodiment.
[0022] Figure 2 It is a structure schematic view of the elevator abnormal vibration and noise sensing device in the embodiment. Figure 1 It is an enlarged structure schematic view of part A in the embodiment. DETAILED DESCRIPTION
[0023] The technical scheme of the utility model will be clearly and completely described in combination with specific embodiments, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.
[0024] It should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", etc. indicating orientation or positional relationship are all based on the figures shown, and are only for the convenience of description.
[0025] Embodiment
[0026] As Figure 1 shown, an elevator abnormal vibration and noise perception device includes an elevator shaft 1, an elevator guide rail 2 and a guide rail bracket. The elevator guide rail is fixedly connected to the front side surface of the guide rail bracket, and the guide rail bracket is fixedly connected to the inner side wall of the elevator shaft through a bracket mounting plate 3 and expansion screws 4.
[0027] The guide rail bracket is composed of an outer bracket 5 in a "C" shape with an opening at the rear side and an inner bracket 6 in a "C" shape with an opening at the front side. Inner flanging parts 7 bent inward at 90° are integrally formed at the upper and lower edges of the opening of the outer bracket, and outer flanging parts 8 bent outward at 90° are integrally formed at the upper and lower edges of the opening of the inner bracket. The opening of the inner bracket is movably sleeved inside the opening of the outer bracket, and the two outer flanging parts of the inner bracket and the two inner flanging parts of the outer bracket are respectively and correspondingly fixedly connected through connecting screws 10 sleeved with rubber shock-absorbing columns 9.
[0028] The upper and lower parts of the rear side wall of the inner bracket are respectively fixedly connected to the bracket mounting plate through connecting screws 12 sleeved with rubber shock-absorbing columns 11. A vibration sensor 13 is installed on the rear side of the outer bracket. The elevator guide rail is vertically and fixedly laid on the inner side wall of the elevator shaft through a plurality of the guide rail brackets arranged at intervals in the vertical direction. A vibration sensor is installed in each guide rail bracket. A traction machine room is arranged at the top of the elevator shaft, and an electrical control box 14 for receiving and displaying the detection signals of each vibration sensor is arranged in the traction machine room.
[0029] The elevator guide rail is fixedly connected to the front side of the guide rail bracket through a track fixing member 15 and a pressing screw 16. A screw through hole 1 for passing through the pressing screw is opened on the front side wall of the outer bracket. The track fixing member is a prior art and will not be elaborated here.
[0030] Corresponding screw through holes 2 for passing through the connecting screw 1 are cooperatively opened on the two outer flanging parts of the inner bracket and the two inner flanging parts of the outer bracket.
[0031] Screw through holes 3 for passing through the connecting screw 12 are respectively opened on the upper and lower parts of the rear side wall of the inner bracket, and inner threaded holes 17 for screwing the connecting screw 12 are respectively correspondingly opened on the upper and lower parts of the front side wall of the bracket mounting plate.
[0032] The upper and lower parts of the support mounting plate are also provided with screw through holes four for the expansion screws, and the centers of the screw through holes four and the screw through holes one are on the same axis, so that the support mounting plate can continue to use the original expansion screws for directly fixing the corresponding rail fixing members of the elevator guide rails, without additional drilling and expansion screws, thereby reducing the workload.
[0033] The vibration sensor adopts a vibration acceleration sensor, a horizontally arranged vibration spring 18 is fixedly connected to the rear side wall of the outer support, and a vibration sensor is mounted on the rear end of the vibration spring. The vibration spring can amplify and conduct abnormal vibration of the elevator guide rail, thereby improving the sensitivity of the vibration sensor to the vibration detection of the elevator guide rail and eliminating abnormal vibration in the bud state.
[0034] The vibration spring is a tower spring with a large front end and a small rear end, the front end of the tower spring is fixedly connected to the rear side wall of the outer support through a locking screw one 19, and the rear end of the tower spring is fixedly connected to the mounting end of the vibration sensor through a locking screw two 20.
[0035] As shown in Figure 2 A threading hole for threading the signal line of the vibration sensor is formed in the rear side wall of the inner support, a rubber wire protection ring 21 is arranged in the threading hole, the hole diameter of the rubber wire protection ring is larger than the wire diameter of the signal line of the vibration sensor, a certain length of the signal line of the vibration sensor inside the rubber wire protection ring is provided with a certain length of activity allowance, the signal line of the vibration sensor inside the rubber wire protection ring is stripped of the outer sheath layer, the relatively thin power line and signal line of the vibration sensor are relatively soft, and the vibration of the vibration spring and the vibration sensor will not have a large interference effect, so as to ensure that the vibration of the vibration sensor is not limited, and the other end of the signal line of each vibration sensor is electrically connected to the electrical control box.
[0036] An indicator light screen 22 for indicating the signal state of the vibration sensor is arranged on the front panel of the electrical control box, each indicator light on the indicator light screen corresponds to each vibration sensor one by one, and the number is equal, and an alarm buzzer 23 is also arranged on the front panel of the electrical control box, which is used to issue a vibration abnormality alarm when the vibration sensor detects an abnormal vibration signal, so that the maintenance personnel can be reminded to be vigilant when checking the elevator operation, and the abnormal vibration of the guide rail support at the corresponding position can be easily found by checking the indicator light on the indicator light screen, so as to timely repair and eliminate the elevator guide rail vibration noise and safety hazards.
[0037] The technical scheme of the utility model is not limited by the above specific embodiments, and many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments, and any technical modification made within the spirit and principle of the utility model falls within the protection scope of the utility model.
Claims
1. An elevator abnormal vibration and noise sensing device, comprising an elevator shaft, an elevator guide rail and a guide rail bracket, the elevator guide rail is fixedly connected on the front side of the guide rail bracket, the guide rail bracket is fixedly connected on the inner side wall of the elevator shaft through a bracket mounting plate and expansion screws, characterized in that: The guide rail support is composed of a rear opening " " shaped outer support and a front opening " " shaped inner support, the upper and lower edges of the opening of the outer support are integrally formed with inward 90° bent inner flange parts, the upper and lower edges of the opening of the inner support are integrally formed with outward 90° bent outer flange parts, the opening of the inner support is movably sleeved on the inner side of the opening of the outer support, the outer flange parts of the inner support and the inner flange parts of the outer support are respectively fastened and connected through the sleeve of rubber shock column one and connecting screw one, the upper and lower parts of the rear side wall of the inner support are respectively fixedly connected with the support mounting plate through the sleeve of rubber shock column two and connecting screw two, the rear side of the outer support is mounted with a vibration sensor, the elevator guide rail is vertically fixed and laid on the inner side wall of the elevator shaft through a plurality of vertically spaced guide rail supports, one vibration sensor is mounted in each guide rail support, the top of the elevator shaft is provided with a traction motor room, and the traction motor room is provided with an electrical control box for receiving and displaying the detection signals of the vibration sensors.
2. The elevator abnormal vibration and noise sensing device according to claim 1, characterized by: The elevator guide rail is fixedly connected with the front side of the guide rail support through a rail fixing part and a compression screw.
3. The elevator abnormal vibration and noise sensing device according to claim 1, characterized by: Corresponding screw through holes two are respectively formed in the outer flange parts of the inner support and the inner flange parts of the outer support for passing the connecting screw one.
4. The elevator abnormal vibration and noise sensing device according to claim 3, characterized by: Screw through holes three are respectively formed in the upper and lower parts of the rear side wall of the inner support for passing the connecting screw two, and the upper and lower parts of the front side wall of the support mounting plate are respectively correspondingly provided with internal thread holes for screwing the connecting screw two.
5. The elevator abnormal vibration and noise sensing device according to claim 2, characterized by: The upper and lower parts of the support mounting plate are also provided with screw through holes four for passing the expansion screws, and the centers of the screw through holes four and the screw through holes one are on the same axis.
6. The elevator abnormal vibration and noise sensing device according to claim 1, characterized by: The vibration sensor adopts a vibration acceleration sensor, a horizontally arranged vibration spring is fixedly connected to the rear side wall of the outer support, and a vibration sensor is mounted on the rear end of the vibration spring.
7. The elevator abnormal vibration and noise sensing device according to claim 6, characterized by: The vibration spring is a tower spring with a large front end and a small rear end, the front end of the tower spring is fixedly connected with the rear side wall of the outer support through a locking screw one, and the rear end of the tower spring is fixedly connected with the mounting end of the vibration sensor through a locking screw two.
8. The elevator abnormal vibration and noise sensing device according to claim 7, characterized by: A threading hole is formed in the rear side wall of the inner support for passing the signal line of the vibration sensor, a rubber wire protection ring is arranged in the threading hole, the hole diameter of the rubber wire protection ring is larger than the wire diameter of the signal line of the vibration sensor, the signal line of the vibration sensor on the inner side of the rubber wire protection ring also has a certain amount of free movement, and the other end of the signal line of each vibration sensor is electrically connected with the electrical control box.
9. The elevator abnormal vibration and noise sensing device according to claim 8, characterized by: An indicator screen for indicating the signal state of the vibration sensor is arranged on the front panel of the electrical control box, each indicator on the indicator screen corresponds to one vibration sensor, and an alarm buzzer is also arranged on the front panel of the electrical control box.