CN201473138U - Novel positive and negative two-way overspeed protection anti-falling triggering device - Google Patents
Novel positive and negative two-way overspeed protection anti-falling triggering device Download PDFInfo
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- CN201473138U CN201473138U CN200920142265XU CN200920142265U CN201473138U CN 201473138 U CN201473138 U CN 201473138U CN 200920142265X U CN200920142265X U CN 200920142265XU CN 200920142265 U CN200920142265 U CN 200920142265U CN 201473138 U CN201473138 U CN 201473138U
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Abstract
The utility model relates to a novel positive and negative two-way overspeed protection anti-falling triggering device for building construction and lifter power of industrial and mining enterprises, comprising a U-shaped support, a centrifugal friction block, a friction drum, an electric switch, a triggering part and a shaft. When a power drive shaft is rotated in a positive way or a negative way, the centrifugal friction block is driven by the shaft to normally rotate and is in a normal working state. When the speed of the power drive shaft being rotated in the positive way or the negative way is faster than the normal speed, the centrifugal friction block drives the friction drum to rotate and touches the electric switch to power off for achieving stop under the action of centrifugal force. At the same time, the triggering part triggers anti-falling protection and triggers other power devices to stop. The device has the advantages of scientific and reasonable structure, easy use and reliable protection, is the regenerated novel positive and negative two-way overspeed protection anti-falling triggering device of the existing one-way speed limit protector of industrial and civil lifters, and can be widely used on the lifters.
Description
Technical field
The utility model belongs to the anti-fall flip flop equipment of novel positive and negative bidirection overspeed protective of the power overspeed protection device, particularly a kind of building hoist of a kind of building operation and industrial and mining enterprises' elevator.
Background technology
In the prior art, existing speed-limit device, as above Hypon reaches the SAJ type speed-limiting protection device that SC type elevator that construction machinery and equipment company produces uses, and it is that brake wheel, rotating shaft, centrifugal block for clutch use and the electric switch etc. of bevelled shell, cone are formed by interior circular hole.Device stage clip, stage clip head on the cone brake wheel in the conical shell afterbody, the brake wheel cone is provided with friction lining, and circular hole has interior ratchet in the brake wheel, and rotating shaft is passed from interior circular hole.Twisted point in the rotating shaft connects an end of centrifugal block for clutch use, and the other end is outer ratchet-like and is controlled by extension spring.When power rotates with working speed towards forward; centrifugal block for clutch use rotates with axle under the effect of extension spring power; when rotating speed is higher than working speed suddenly; the centnifugal force that the centrifugal block for clutch use rotation produces can overcome extension spring power; be outer ratchet one end and be thrown out of and insert in the interior ratchet, the drive brake wheel rotates and produces propulsive force and overcome stage clip power, and making friction lining and interior circular hole on the brake wheel cone is bevelled shell friction and propelling; the propelling of brake wheel touches the electric switch outage, and power is shut down after losing power supply.Because of centrifugal block for clutch use one end is connected on the twisted point, the other end has been thrown out of directivity, so this speed-limiting protection device can not be realized positive and negative beidirectional speed-limiting protection.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part, and a kind of anti-fall flip flop equipment of novel positive and negative bidirection overspeed protective of scientific and reasonable, elevator that reliable trigger is easy for installation and with low cost simple in structure is provided.
The technical solution of the utility model is: the cooresponding axle of on the U-shaped support two support plates are supporting axle, and fixedly centrifugal friction piece and running in bearings on the axle are provided with damping piece and electric switch on the U-shaped support; Drum and cover plate are tightened to one, and correspondence is assemblied on the bearing respectively, fixing part and the shifting block of triggering of the ectosome of drum or the ectosome of cover plate, and the interior hole circle wall of drum and centrifugal friction piece are concentric with axle; The ectosome of the corresponding drum of damping piece or the ectosome of cover plate, the track of the circle of the corresponding shifting block of the touching lever of electric switch can be by shifting block rotation back crash-active.In order to obtain better effect, the utility model can also adopt following technical measures; The ectosome of described drum and cover plate ectosome, preferably fixing respectively part or the shifting block of triggering.
Description of drawings
Accompanying drawing is an example structure scheme drawing of the present utility model
The specific embodiment
Embodiment: the cooresponding axle of on U type support two support plate 1 upper supports axle 2, centrifugal friction piece 6 be fixed on axle 2 middle parts and on the axle 2 of its both sides running in bearings 8 respectively, damping piece 9 and electric switch 11 are set on the U-shaped support.Drum 5 and cover plate 7 are tightened to one, and correspondence is assemblied on the bearing 8 respectively.The interior hole circle wall of drum 5 and centrifugal friction piece 6 are concentric with axle 2, the fixing part 4 that triggers of the ectosome of drum 5, and the ectosome of cover plate 7 is shifting block 10 fixedly.Damping piece 9 corresponding cover plates 7, the track of the circle of the corresponding shifting block 10 of the touching lever of electric switch 11, motor 3 is connected with axle 2.Its process was when the utility model used in reality: motor 3 is done to rotate forward or backwards with normal speed axle drive shaft 2, centrifugal friction piece 6 on the axle 2 is along with normal rotation, trigger part 4, drum 5, cover plate 7, shifting block 10 under the shock damping action of damping piece 9, transfixion on two bearings 8; Elevator does to rise or fall operation.Motor 3 just or oppositely directed rotating speed when being higher than normal speed suddenly, the centrifugal friction piece 6 that drives on the axle 2 produces centnifugal force, centrifugal friction piece 6 outwards moves under action of centrifugal force, press the resistance that contacts generation friction force drive drum 5 rotations and overcome damping piece 9 with drum 5 inwalls, drum 5 and cover plate 7 integral body are rotated around bearing 8.The track that shifting block 10 on the cover plate 7 is made circle simultaneously rotates, and electric switch 11 outages when it runs into the touching lever of electric switch 11 are shut down stop transport row and elevator of motor 3.Triggering part 4 on the drum 5 rotates synchronously, triggers the anti-fall device action at once, prevents elevator generation safety misadventure.Trigger part 4 and can also trigger other engine installation shutdown.
The utility model is rational in infrastructure, easy to use, protection is reliable.For the power that has industry and civilian elevator now provides a kind of novel positive and negative bidirection overspeed protective anti-fall flip flop equipment.
Claims (5)
1. anti-fall flip flop equipment of novel positive and negative bidirection overspeed protective, comprise U-shaped support, bearing and centrifugal friction piece, it is characterized in that two the cooresponding axle support plates (1) on the U-shaped support are supporting axle (2), axle (2) is gone up fixedly centrifugal friction piece (6) and running in bearings (8), and damping piece (9) and electric switch (11) are set on the U-shaped support; Drum (5) and cover plate (7) are tightened to one, and correspondence is assemblied on the bearing (8) respectively, fixing part (4) and the shifting block (10) of triggering of the ectosome of drum (5) or the ectosome of cover plate (7).
2. the anti-fall flip flop equipment of novel positive and negative bidirection overspeed protective according to claim 1 is characterized in that the ectosome of drum (5) and the fixing respectively part (4) or the shifting block (10) of triggering of ectosome of cover plate (7).
3. the anti-fall flip flop equipment of novel positive and negative bidirection overspeed protective according to claim 1 is characterized in that the interior hole circle wall of drum (5) and centrifugal friction piece (6) are concentric with axle (2).
4. the anti-fall flip flop equipment of novel positive and negative bidirection overspeed protective according to claim 1 is characterized in that the track of circle of the corresponding shifting block of touching lever (10) of electric switch (11), by shifting block (10) rotation back crash-active.
5. the anti-fall flip flop equipment of novel positive and negative bidirection overspeed protective according to claim 1 is characterized in that the ectosome of the corresponding drum of damping piece (9) (5) or the ectosome of cover plate (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920142265XU CN201473138U (en) | 2009-04-08 | 2009-04-08 | Novel positive and negative two-way overspeed protection anti-falling triggering device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920142265XU CN201473138U (en) | 2009-04-08 | 2009-04-08 | Novel positive and negative two-way overspeed protection anti-falling triggering device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201473138U true CN201473138U (en) | 2010-05-19 |
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ID=42409382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920142265XU Expired - Fee Related CN201473138U (en) | 2009-04-08 | 2009-04-08 | Novel positive and negative two-way overspeed protection anti-falling triggering device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201473138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510151A (en) * | 2018-11-16 | 2019-03-22 | 扬州东方吊架有限公司 | A kind of safety for high-voltage cable |
-
2009
- 2009-04-08 CN CN200920142265XU patent/CN201473138U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510151A (en) * | 2018-11-16 | 2019-03-22 | 扬州东方吊架有限公司 | A kind of safety for high-voltage cable |
| CN109510151B (en) * | 2018-11-16 | 2024-04-12 | 扬州东方吊架有限公司 | Safety device for high-voltage cable |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20130408 |