CN114275701A - Mute brake device for screw-driven elevator - Google Patents
Mute brake device for screw-driven elevator Download PDFInfo
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- CN114275701A CN114275701A CN202210025150.2A CN202210025150A CN114275701A CN 114275701 A CN114275701 A CN 114275701A CN 202210025150 A CN202210025150 A CN 202210025150A CN 114275701 A CN114275701 A CN 114275701A
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- elevator
- brake
- screw
- armature
- brake device
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- 239000011159 matrix material Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The invention discloses a mute brake device for a screw rod driven elevator, aiming at solving the problem that a friction plate can rub an armature iron at the lower part when the elevator is in a running state, so that on one hand, the abrasion of the friction plate is accelerated, and the risk of brake failure exists; on the other hand friction can produce the noise, and the noise that speed is faster can be big more, and the influence is taken the problem of experience, include perpendicularly to the multi-thread screw rod that sets up in the elevator well and set up the drive wheel in order to drive elevator car lift on the multi-thread screw rod, the week side of drive wheel is provided with the silence arresting gear of a plurality of from the side braking drive wheel when being used for elevator car to stop. The invention is particularly suitable for the mute brake of the elevator, and has higher social use value and application prospect.
Description
Technical Field
The invention relates to the technical field of household elevators, in particular to a mute brake device for a screw-driven elevator.
Background
A conventional screw-driven elevator, referring to fig. 7 to 8, has a screw 10 disposed in the middle of a brake 30, a driving pulley 20 connected to a friction plate 305 of the brake through splines, and the friction plate 305, an armature 303 and an electromagnetic chuck 302 of the brake can move up and down.
When the elevator is stopped, the brake 30 is powered off, the electromagnetic chuck 302 does not have suction force, the armature 303 is separated from the electromagnetic chuck 302 under the action of the internal spring force of the brake 30, the armature 303 and the electromagnetic chuck 302 are respectively tightly attached to the upper friction plate 305 and the lower friction plate 305 under the action of the spring force, positive pressure is given to the friction plates 305, and therefore friction force is generated, and the driving wheel 20 is braked on the screw 10;
when the elevator runs, an elevator running instruction is received, the electromagnetic chuck 302 is powered on, the armature 303 overcomes the spring force and is attracted with the electromagnetic chuck 302 together under the action of electromagnetic force, but the upper friction plate rubs with the armature 303 under the action of gravity, the weights of the electromagnetic chuck 302, the armature 303 and the upper friction plate 305 act on the lower friction plate 305, and when the driving wheel 20 rotates, the friction plate 305 rubs with the lower armature 303, so that on one hand, the abrasion of the friction plate 305 is accelerated, and the risk of brake failure exists; on the other hand, friction can generate noise, and the noise is larger when the speed is higher, so that the riding experience is influenced. Therefore, a silent braking device for a screw-driven elevator is provided.
Disclosure of Invention
It is an object of the present invention to solve or at least alleviate problems in the prior art.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the invention provides a mute brake device for a screw-driven elevator, which comprises a multi-thread screw rod vertically arranged in an elevator shaft and a driving wheel arranged on the multi-thread screw rod to drive an elevator car to ascend and descend, wherein a plurality of mute brake devices used for laterally braking the driving wheel when the elevator car stops are arranged on the peripheral side of the driving wheel.
Optionally, the mute brake device includes a plurality of friction plates disposed on the periphery of the driving wheel to brake the driving wheel from the side, the friction plates are fixed on the armature, the armature is fixed in a spring groove formed in the brake housing through a plurality of extension springs, the brake housing is fixed on the elevator car, and an electromagnetic chuck for adsorbing the armature is fixed in the brake groove formed in the middle of the brake housing.
Optionally, a plurality of protective pads for protection are fixed on one side of the electromagnetic chuck close to the armature.
Optionally, a detection switch for receiving an elevator operation command is fixed on the brake housing.
Optionally, a plurality of guide grooves are symmetrically formed in the brake housing, guide shafts are slidably mounted in the guide grooves, and the plurality of guide shafts are vertically fixed to the armature.
Optionally, the number of the telescopic springs is more than or equal to four, and the four telescopic springs are distributed in a matrix.
Optionally, the friction plate is fixed to the armature by a plurality of fixing pins distributed in a matrix.
Optionally, the number of the friction plates is more than or equal to two, and the two friction plates are arc-shaped, and the radius of the arc is the same as that of the contact surface of the driving wheel.
Optionally, a band-type brake gap exists between the electromagnetic chuck and the armature in a brake state of the brake, and the band-type brake gap is 0.3-1 mm.
The invention mainly has the following beneficial effects:
1. when the elevator is in a stop state, the friction plates surround the side wall of the driving wheel under the action of the spring force of the telescopic springs, and the positive pressure of the friction plates generates friction force, so that the driving wheel is in a braking state.
2. When the elevator runs, the armature iron is attracted with the brake shell under the action of the attraction force of the electromagnetic chuck, so that the friction plate is separated from the side wall surface of the driving wheel and is in a non-contact state, the driving wheel starts to run, and only the running sound of the motor is generated without abrasion and friction noise, so that the problem that the friction plate is damaged in the non-brake state is solved, the service life of the friction plate is greatly prolonged, and the running resistance is smaller and the power consumption is lower due to no friction.
Drawings
The above-mentioned characteristics, technical features, advantages and modes of realisation of a silent braking device for screw-driven elevators will be further described in the following, in a clearly understandable manner, in connection with the accompanying drawings, which illustrate preferred embodiments.
FIG. 1 is a front view of the structure of the present invention;
FIG. 2 is a schematic view of the brake of the present invention;
FIG. 3 is a schematic side view of the brake of the present invention;
FIG. 4 is a schematic view of the structure A-A of FIG. 3 according to the present invention;
FIG. 5 is a schematic view of the brake in-suction state structure of the present invention;
FIG. 6 is a structural diagram of the braking state of the brake of the present invention;
FIG. 7 is a schematic view of a brake in a pull-in state according to the prior art;
fig. 8 is a structural diagram of a brake state of the prior art brake.
In the figure: the multi-thread screw 10, the driving wheel 20, the mute brake device 30, a brake outer shell 301, an electromagnetic chuck 302, an armature 303, a detection switch 304, a friction plate 305, a telescopic spring 306, a guide shaft 307, a protection pad 308 and a fixing pin 309.
Detailed Description
The invention will be further illustrated with reference to the following figures 1 to 8 and examples:
example 1
The invention provides a mute brake device for a screw-driven elevator, which comprises a multi-thread screw 10 vertically arranged in an elevator shaft and a driving wheel 20 arranged on the multi-thread screw 10 to drive an elevator car to ascend and descend, wherein a plurality of mute brake devices 30 used for laterally braking the driving wheel 20 when the elevator car stops are arranged on the peripheral side of the driving wheel 20, and the mute brake devices refer to the attached drawings 1-6.
In this embodiment, as shown in fig. 2 to 4, the silent braking device 30 includes two friction plates 305 disposed on the periphery of the driving wheel 20 to brake the driving wheel 20 from the side, the friction plates 305 are fixed on the armature 303 through a plurality of fixing pins 309 distributed in a matrix, the number of the friction plates 305 is two, the two friction plates 305 are in an arc shape, the radius of the arc is the same as the radius of the contact surface of the driving wheel 20, the armature 303 is fixed in a spring slot formed in the brake housing 301 through a plurality of expansion springs 306, the number of the expansion springs 306 is more than or equal to four, the four expansion springs 306 are distributed in a matrix, the brake housing 301 is fixed on the elevator car, an electromagnetic chuck 302 for adsorbing the armature 303 is fixed in the brake slot formed in the middle of the brake housing 301, and a plurality of protection pads 308 are fixed on one side of the electromagnetic chuck 302 close to the armature 303; a detection switch 304 for receiving an elevator operation instruction is fixed on the brake shell 301; a plurality of guide grooves are symmetrically formed in the brake shell 301, guide shafts 307 are slidably mounted in the guide grooves, and the guide shafts 307 are vertically fixed on the armature 303;
in this embodiment, the silent braking device 30 is composed of two friction plates 305 symmetrically arranged, and is respectively disposed on two sides of the driving wheel 20, the friction plates 305 are arc-shaped, and the radius of the arc is the same as the radius of the contact surface of the driving wheel 20, when the elevator is in a stop state, due to the spring force of the extension spring 306, the friction plates 305 encircle the side wall of the driving wheel 20, and the positive pressure of the friction plates 305 generates friction force, so that the driving wheel 20 is in a braking state, and in extreme cases, such as when one side of the contracting brake fails, the other group of the friction plates can still brake, thereby increasing the reliability and redundancy of braking, and keeping safety;
when the elevator is in a running state, the armature 303 is attracted with the brake outer shell 301 under the action of the attraction force of the electromagnetic chuck 302, so that the friction plate 305 is separated from the side wall surface of the driving wheel 20 and is in a non-contact state, the driving wheel 20 starts to operate, only the running sound of the motor per se is generated, no abrasion is generated, no friction noise is generated, the problem that the friction plate 305 is damaged in the non-braking state is solved, the service life of the friction plate 305 is greatly prolonged, no friction is generated, the running resistance is smaller, and the power consumption is lower.
Example 2
The difference between this embodiment and embodiment 1 is that, as shown in fig. 4, a band-type brake gap exists between the electromagnetic chuck 302 and the armature 303 in the brake state, and the band-type brake gap is 0.3-1mm, so that the friction plate 305 has no wear on working parts under the elevator operating condition.
Other undescribed structures refer to example 1.
According to the mute brake device for the screw rod driven elevator in the above embodiment of the invention, when the elevator is in a stop state, the friction plates 305 surround the side wall of the driving wheel 20 due to the action of the spring force of the extension spring 306, and the positive pressure of the friction plates 305 generates friction force, so that the driving wheel 20 is in a braking state;
when the elevator is in a running state, the armature 303 is attracted with the brake outer shell 301 under the action of the attraction force of the electromagnetic chuck 302, so that the friction plate 305 is separated from the side wall surface of the driving wheel 20 and is in a non-contact state, the driving wheel 20 starts to operate, only the running sound of the motor per se is generated, no abrasion is generated, no friction noise is generated, the problem that the friction plate 305 is damaged in the non-braking state is solved, the service life of the friction plate 305 is greatly prolonged, no friction is generated, the running resistance is smaller, and the power consumption is lower.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (9)
1. The utility model provides a silence arresting gear for screw drive elevator, includes to set up multiwire screw rod (10) in the elevator well and set up in multiwire screw rod (10) with driving wheel (20) that the elevator car goes up and down that the drive wheel goes up and down that sets up perpendicularly, characterized in that, the week side of driving wheel (20) is provided with a plurality of and is used for the silence arresting gear (30) of elevator car braking driving wheel (20) from the side when stopping.
2. A silent brake device for a screw-driven elevator as claimed in claim 1, wherein: silence arresting gear (30) include that a plurality of sets up friction disc (305) in order from the side braking drive wheel (20) of drive wheel (20) week side, and friction disc (305) are fixed in on armature (303), and armature (303) are fixed in the spring groove that brake shell (301) were seted up through a plurality of expanding spring (306), and brake shell (301) are fixed in on the elevator car, and brake shell (301) middle part is seted up the brake groove internal fixation have be used for adsorbing electromagnet (302) of armature (303).
3. A silent brake device for a screw-driven elevator as claimed in claim 2, wherein: and a plurality of protective pads (308) for protection are fixed on one side of the electromagnetic chuck (302) close to the armature (303).
4. A silent brake device for a screw-driven elevator as claimed in claim 2, wherein: and a detection switch (304) for receiving an elevator operation command is fixed on the brake shell (301).
5. A silent brake device for a screw-driven elevator as claimed in claim 4, wherein: a plurality of guide grooves are symmetrically formed in the brake shell (301), guide shafts (307) are arranged in the guide grooves in a sliding mode, and the guide shafts (307) are perpendicularly fixed to the armature (303).
6. A silent brake device for a screw-driven elevator as claimed in claim 2, wherein: the number of the telescopic springs (306) is more than or equal to four, and the four telescopic springs (306) are distributed in a matrix.
7. A silent brake device for a screw-driven elevator as claimed in claim 2, wherein: the friction plate (305) is fixed on the armature (303) through a plurality of fixing pins (309) distributed in a matrix.
8. A silent brake device for a screw-driven elevator as claimed in claim 7, wherein: the number of the friction plates (305) is more than or equal to two, the two friction plates (305) are arc-shaped, and the radius of the arc is the same as that of the contact surface of the driving wheel (20).
9. A silent brake device for a screw-driven elevator as claimed in claim 1, wherein: and a band-type brake gap exists between the electromagnetic chuck (302) and the armature (303) when the brake is in a braking state, and the band-type brake gap is 0.3-1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210025150.2A CN114275701A (en) | 2022-01-11 | 2022-01-11 | Mute brake device for screw-driven elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210025150.2A CN114275701A (en) | 2022-01-11 | 2022-01-11 | Mute brake device for screw-driven elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114275701A true CN114275701A (en) | 2022-04-05 |
Family
ID=80880661
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210025150.2A Pending CN114275701A (en) | 2022-01-11 | 2022-01-11 | Mute brake device for screw-driven elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114275701A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200416358Y1 (en) * | 2006-02-28 | 2006-05-15 | 주식회사 세명엘리베이터 | An elevator bi-directional braking device |
| CN201932870U (en) * | 2010-07-15 | 2011-08-17 | 苏州安固科技有限责任公司 | Block type brake of elevator |
| CN201990426U (en) * | 2010-03-23 | 2011-09-28 | 成都瑞迪机械实业有限公司 | Safety brake of elevator tractor |
| CN102583186A (en) * | 2011-12-01 | 2012-07-18 | 苏州帝奥电梯有限公司 | Shock absorption device for brakes |
| CN209906144U (en) * | 2019-04-22 | 2020-01-07 | 天津奥森科技发展有限公司 | Steel belt type screw rod driving elevator |
| CN210457039U (en) * | 2019-09-17 | 2020-05-05 | 徐晓飞 | Flat-bed anti-sliding device of car elevator |
| CN111559683A (en) * | 2020-05-18 | 2020-08-21 | 黄松檀 | Elevator with power-off braking friction type brake with compact structure |
-
2022
- 2022-01-11 CN CN202210025150.2A patent/CN114275701A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR200416358Y1 (en) * | 2006-02-28 | 2006-05-15 | 주식회사 세명엘리베이터 | An elevator bi-directional braking device |
| CN201990426U (en) * | 2010-03-23 | 2011-09-28 | 成都瑞迪机械实业有限公司 | Safety brake of elevator tractor |
| CN201932870U (en) * | 2010-07-15 | 2011-08-17 | 苏州安固科技有限责任公司 | Block type brake of elevator |
| CN102583186A (en) * | 2011-12-01 | 2012-07-18 | 苏州帝奥电梯有限公司 | Shock absorption device for brakes |
| CN209906144U (en) * | 2019-04-22 | 2020-01-07 | 天津奥森科技发展有限公司 | Steel belt type screw rod driving elevator |
| CN210457039U (en) * | 2019-09-17 | 2020-05-05 | 徐晓飞 | Flat-bed anti-sliding device of car elevator |
| CN111559683A (en) * | 2020-05-18 | 2020-08-21 | 黄松檀 | Elevator with power-off braking friction type brake with compact structure |
Non-Patent Citations (1)
| Title |
|---|
| 张洪峰: "塑料模具设计与制造", 31 August 2006, 河南科学技术出版社, pages: 118 * |
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