CN201240730Y - Elevator overspeed limiting apparatus - Google Patents
Elevator overspeed limiting apparatus Download PDFInfo
- Publication number
- CN201240730Y CN201240730Y CNU2008201133087U CN200820113308U CN201240730Y CN 201240730 Y CN201240730 Y CN 201240730Y CN U2008201133087 U CNU2008201133087 U CN U2008201133087U CN 200820113308 U CN200820113308 U CN 200820113308U CN 201240730 Y CN201240730 Y CN 201240730Y
- Authority
- CN
- China
- Prior art keywords
- centrifugal
- brake
- wheel
- elevator overspeed
- restraint device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses an elevator overspeed limiter, comprising a cable pulley and a brake pulley installed on the same principal shaft with the cable pulley. The elevator overspeed limiter further comprises a pair of eccentric wheels and a pair of centrifugal blocks, which are respectively arranged in symmetry with respect to the principal shaft. The eccentric wheels are eccentrically connected with the cable pulley and are disposed at the outer circumference of the brake pulley, and the centrifugal blocks are respectively connected with the eccentric wheels. A spring bracket can also be rotatably installed on the principal shaft, and a spring is connected between the spring bracket and a centrifugal wheel. The elevator overspeed limiter adopts the centrifugal wheel and the brake pulley to brake, and the fit of the round surfaces enables the elevator overspeed limiter to brake at any point. The elevator overspeed limiter can brake timely and is quick in response.
Description
Technical field
The utility model relates to a kind of elevator overspeed restraint device.
Background technology
When elevator rose or descend operation, the over proof speed of its speed when perhaps the hauling rope of elevator ruptures, just needed safety device in time elevator device to be protected, to prevent the generation of contingency.Existing hypervelocity restraint device generally comprises rope sheave, brake ratchet that twines hauling rope and the ratchet that cooperates with brake ratchet, rope sheave and brake ratchet are installed on the same main shaft, ratchet and rope sheave are fixed, be connected with centrifugal device with ratchet, when rope sheave rotates in specified speed, centrifugal device is in state of equilibrium with rope sheave, ratchet, makes ratchet leave brake ratchet; And when rope sheave exceeds the speed limit, the balance of centrifugal device is broken and centrifugal motion is taken place, make the ratchet fastener at the brake ratchet edge, thereby driving brake ratchet rotates together, the rotation of brake ratchet then can drive the rope gripper action, rope gripper is clenched exceed the speed limit the hauling rope of motion, thus the driving over the speed limit of control elevator.But the cooperation of this brake ratchet, ratchet can only could be braked at appointment some (as 2 or 4 points), and braking may be inadequately fast, in time.
Summary of the invention
The utility model purpose provides a kind of elevator overspeed restraint device, and it adopts centrifugal wheel to cooperate braking with brake wheel, and the cooperation of disc can be braked at any point, brakes in time, is swift in response.
The technical solution of the utility model is: a kind of elevator overspeed restraint device, comprise rope sheave and be installed in brake wheel on the same main shaft with rope sheave, described hypervelocity restraint device also comprises respectively about the symmetrically arranged a pair of eccentric wheel of main shaft and a pair of centrifugal, described eccentric wheel and rope sheave be eccentric to be connected and to be positioned at the brake wheel periphery, described a pair of centrifugal is connected with eccentric wheel respectively, the also rotating spring bracket that is equipped with is connected with spring between described spring bracket and the centrifugal wheel on the described main shaft.
The further technical scheme of the utility model is: a kind of elevator overspeed restraint device, comprise rope sheave and be installed in brake wheel on the same main shaft with rope sheave, described hypervelocity restraint device also comprises respectively about the symmetrically arranged a pair of eccentric wheel of main shaft and a pair of centrifugal, described eccentric wheel and rope sheave be eccentric to be connected and to be positioned at the brake wheel periphery, described a pair of centrifugal is connected with eccentric wheel respectively, the also rotating spring bracket that is equipped with is connected with spring between described spring bracket and the centrifugal wheel on the described main shaft.
Described rope sheave is provided with protruding axle towards the spoke of brake wheel one side, and described eccentric wheel is rotating to be installed on the protruding axle.
Described centrifugal is the semicircle ring flat-plate, and two relative semicircular ring inner arc are partly encircled and are located at main shaft periphery, and straight line portion lays respectively at protruding axle both sides and is rotationally connected with eccentric wheel.
Described spring outer end and spring bracket are fixed, and inner and centrifugal fixing.
Also be provided with installation shaft on the described spring bracket, described centrifugal rotatingly is connected with installation shaft.
The utility model advantage is: the utility model adopts centrifugal wheel to cooperate with brake wheel, when elevator overspeed travels, centrifugal wheel can be adjacent to brake wheel and it is rotated under centrifugal effect, compare with in the past brake ratchet, click-fit, the cooperation of disc can be braked at any point, brakes in time, is swift in response.
Description of drawings
Fig. 1 is the Facad structure scheme drawing of the utility model specific embodiment;
Fig. 2 is the construction profile scheme drawing of the utility model specific embodiment.
Wherein: 1 rope sheave; 2 brake wheels; 3 eccentric wheel; 4 centrifugal; 5 main shafts; 6 spring brackets; 7 springs; 8 protruding axles; 9 installation shaft.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further described:
Embodiment: as depicted in figs. 1 and 2, a kind of elevator overspeed restraint device, comprise rope sheave 1 and be installed in brake wheel 2 on the same main shaft 5 with rope sheave 1, described hypervelocity restraint device also comprises respectively about main shaft 5 symmetrically arranged a pair of eccentric wheel 3 and a pair of centrifugal 4, described eccentric wheel 3 and rope sheave 1 be eccentric to be connected and to be positioned at brake wheel 2 peripheries, described a pair of centrifugal 4 respectively with eccentric wheel 3 pin joints, the also rotating spring bracket 6 that is equipped with is connected with spring 7 between described spring bracket 6 and the centrifugal wheel 4 on the described main shaft 5.
Described rope sheave 1 is provided with protruding axle 8 towards the spoke of brake wheel 2 one sides, described eccentric wheel 3 rotating being installed on the protruding axle 8.
Described centrifugal 4 is the semicircle ring flat-plate, and two relative semicircular ring inner arc are partly encircled and are located at main shaft 5 peripheries, and straight line portion lays respectively at protruding axle 8 both sides and is rotationally connected with eccentric wheel 3.
Described spring 7 outer ends and spring bracket 6 are fixing, and inner and centrifugal 4 fixing.Wherein spring bracket 6 is provided with the hook sheet towards centrifugal 4, centrifugal 4 fixed projection that is provided with towards spring bracket, and the two ends of spring are fixed with hook sheet and fixed projection respectively.
Also be provided with installation shaft 9 on the described spring bracket 6, described centrifugal 4 rotatingly is connected with installation shaft 9.
During work, when the steady lifting of elevator, rope sheave rotates with certain speed, and simultaneously eccentric wheel also rotates thereupon, does not contact between eccentric wheel and the brake wheel, and centrifugal keeps balance under the effect of eccentric wheel, spring bracket and spring; And it is up or when descending when elevator overspeed, rope sheave is overspeed rotation also, centrifugal at action of centrifugal force lower compression spring, make spring shrink, centrifugal has the trend of outside motion to make centrifugal installation shaft on spring bracket deflect, and then makes eccentric wheel generation eccentric rotary contact and make it with the brake wheel outer peripheral face to deflect.Drive up automatic brake system or the braking of descending automatic brake system by the deflection of brake wheel then, make the hypervelocity motion of elevator stop, ensureing passenger safety.
The utility model adopts centrifugal wheel to cooperate with brake wheel, when elevator overspeed travels, centrifugal wheel can be adjacent to brake wheel and it is rotated under centrifugal effect, compare with in the past brake ratchet, click-fit, the cooperation of disc can be braked at any point, brakes in time, is swift in response.
Claims (5)
1. elevator overspeed restraint device, comprise rope sheave (1) and be installed in brake wheel (2) on the same main shaft (5) with rope sheave (1), it is characterized in that: described hypervelocity restraint device also comprises respectively about the symmetrically arranged a pair of eccentric wheel of main shaft (5) (3) and a pair of centrifugal (4), described eccentric wheel (3) and rope sheave (1) be eccentric to be connected and to be positioned at brake wheel (2) periphery, described a pair of centrifugal (4) are connected with eccentric wheel (3) respectively, described main shaft (5) is gone up the also rotating spring bracket (6) that is equipped with, and is connected with spring (7) between described spring bracket (6) and the centrifugal wheel (4).
2. elevator overspeed restraint device according to claim 1 is characterized in that: described rope sheave (1) is provided with protruding axle (8) towards the spoke of brake wheel (2) one sides, and described eccentric wheel (3) is rotating to be installed on the protruding axle (8).
3. elevator overspeed restraint device according to claim 2, it is characterized in that: described centrifugal (4) are the semicircle ring flat-plate, two relative semicircular ring inner arc are partly encircled and are located at main shaft (5) periphery, and straight line portion lays respectively at protruding axle (8) both sides and is rotationally connected with eccentric wheel (3).
4. elevator overspeed restraint device according to claim 1 is characterized in that: described spring (7) outer end and spring bracket (6) are fixing, and inner and centrifugal (4) are fixing.
5. elevator overspeed restraint device according to claim 1 is characterized in that: also be provided with installation shaft (9) on the described spring bracket (6), described centrifugal (4) are rotating to be connected with installation shaft (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201133087U CN201240730Y (en) | 2008-07-29 | 2008-07-29 | Elevator overspeed limiting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201133087U CN201240730Y (en) | 2008-07-29 | 2008-07-29 | Elevator overspeed limiting apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201240730Y true CN201240730Y (en) | 2009-05-20 |
Family
ID=40714023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201133087U Expired - Lifetime CN201240730Y (en) | 2008-07-29 | 2008-07-29 | Elevator overspeed limiting apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201240730Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106698139A (en) * | 2017-02-06 | 2017-05-24 | 南通通洋机电制造有限公司 | Elevator speed limiter |
| CN107934816A (en) * | 2017-11-11 | 2018-04-20 | 华强方特（芜湖）文化科技有限公司 | It is a kind of possess auxiliary braking surround formula single-point crane system |
| CN115432609A (en) * | 2022-09-22 | 2022-12-06 | 江苏如神重工有限公司 | Multi-reel fast safety type winch for ship |
-
2008
- 2008-07-29 CN CNU2008201133087U patent/CN201240730Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106698139A (en) * | 2017-02-06 | 2017-05-24 | 南通通洋机电制造有限公司 | Elevator speed limiter |
| CN107934816A (en) * | 2017-11-11 | 2018-04-20 | 华强方特（芜湖）文化科技有限公司 | It is a kind of possess auxiliary braking surround formula single-point crane system |
| CN107934816B (en) * | 2017-11-11 | 2023-06-23 | 华强方特（芜湖）文化科技有限公司 | Surrounding type single-point suspension system with auxiliary braking function |
| CN115432609A (en) * | 2022-09-22 | 2022-12-06 | 江苏如神重工有限公司 | Multi-reel fast safety type winch for ship |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090520 |
|
| CX01 | Expiry of patent term |