CN203806898U - Elevator speed limiter - Google Patents
Elevator speed limiter Download PDFInfo
- Publication number
- CN203806898U CN203806898U CN201420065954.6U CN201420065954U CN203806898U CN 203806898 U CN203806898 U CN 203806898U CN 201420065954 U CN201420065954 U CN 201420065954U CN 203806898 U CN203806898 U CN 203806898U
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- CN
- China
- Prior art keywords
- wheels
- contact roller
- rid
- ratchet
- brace table
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- 239000002965 rope Substances 0.000 claims abstract description 57
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 19
- 239000010959 steel Substances 0.000 claims abstract description 19
- 238000007906 compression Methods 0.000 claims description 3
- 238000005299 abrasion Methods 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000002522 swelling Effects 0.000 description 2
- 238000005056 compaction Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Abstract
The utility model relates to an elevator speed limiter which comprises a supporting table and a pair of overhead safety tongs. The supporting table is hinged to the position of an upper cross beam of a car and penetrated by guide rails and provided with guide wheels in contact with the guide rails and pressing wheels for pressing the guide rails, wherein the pressing wheels are coaxially provided with main rope wheels, the guide wheels are coaxially provided with auxiliary rope wheels, the head ends of steel wire ropes are connected with the main rope wheels and bypass the auxiliary rope wheels, and the tail ends of the steel wire ropes are connected with the overhead safety tongs. Ratchet wheels are arranged between the pressing wheels and the main rope wheels, swing block mechanisms, clamping tools and stopping blocks are sequentially connected to the wheel surfaces of the pressing wheels, the clamping tools are in clamping connection with the stopping blocks, the stopping blocks are opposite to ratchet tooth gaps of the ratchet wheels, and the swing block mechanisms are further in linkage with press plates arranged on the main rope wheels. The elevator speed limiter is small in steel wire rope abrasion amount, can effectively reduce accidents caused by steel wire rope durability and is high in safety performance.
Description
Technical field
The utility model relates to a kind of elevator governor.
Background technology
Conventional elevator governor at present, all be mounted in elevator(lift) machine room (except machine-roomless lift, elevator speed limitor without machine room be generally mounted in cage guide or the mount pad that indirectly connects with cage guide on), but on the elevator governor of conventional all brand and models, speed limiter wire rope is all installed, this speed limiter wire rope is connected with lift car, velocity limiter is measured the speed of lift car by velocity limiter steel wire, and the safety tongs on this steel rope and lift car can form interlock, in the time there is overspeed situation (while exceeding amount speed 115%), velocity limiter can send signal in time, then produce mechanical action and cut off feed circuit, simultaneously, speed limiter wire rope can make safety tongs action by raising rod, car is forced to stop on guide rail.
The shortcoming of such scheme is: 1. on velocity limiter wheel, be wound with speed limiter wire rope, between velocity limiter and car, distance is longer, for tensioner steel rope, also needs to arrange steel rope swelling device, and this swelling device complex structure, takies installing space; 2. speed limiter wire rope friction force, stroke, the technical parameters such as tensile strength all will have influence on the safety interaction defencive function of elevator governor and safety tongs, if speed limiter wire rope goes wrong, may cause serious elevator accident.
Utility model content
The utility model is intended to provide a kind of installing space, higher elevator governor of safety saved.
The purpose of this utility model can reach by following measures: elevator governor, comprise brace table and inhead type safety tongs, described brace table is articulated with the entablatrance place of car and is run through by guide rail, brace table is provided with the track adjusting wheel contacting with guide rail, and the contact roller of compression guide rail, this contact roller is coaxially arranged with main rope sheave, track adjusting wheel is coaxially arranged with secondary rope sheave, and the head end of steel rope is connected with main rope sheave and walks around secondary rope sheave, and the end of steel rope is connected with inhead type safety tongs; Between described contact roller and main rope sheave, be provided with ratchet, on the wheel face of contact roller, be connected with in turn and get rid of block mechanism, swaging clamp and block, this swaging clamp and block clamping, block is relative with the ratchet gap of ratchet, this get rid of block mechanism also with main rope sheave with pressing plate interlock.
Technique scheme difference with the prior art is: the disclosed elevator governor of the utility model is arranged on the top of car, without between machine room and car, steel rope being set, save rope sheave tightening device, save installing space, in addition, by track adjusting wheel and contact roller clamping guide-rail, when car moves, track adjusting wheel and contact roller rotate, when car speed exceed command speed 115% time, get rid of block mechanism action and drive swaging clamp to depart from block, block inserts between the ratchet gap of ratchet, makes contact roller and ratchet form one; Now, get rid of block mechanism promotion pressing plate and compress main rope sheave, make winner's rope sheave, contact roller and ratchet form one, along with the movement of car, the steel rope being fixed on main rope sheave starts rolling, mention inhead type safety tongs, more card is tighter on guide rail for inhead type safety tongs, finally arrives the object of speed limit stop, and in the utility model, the abrasion loss of steel rope is little, can effectively reduce the accident occurring because of steel rope durability, safety performance is higher.
Further, described get rid of block mechanism comprise get rid of piece, under get rid of piece, the upper and lower piece that gets rid of connects by connecting rod, on get rid of piece and toggle is fixed, toggle is connected by retracing spring with contact roller wheel face, contact roller rotate exceed amount speed 115% time, the upper and lower piece that gets rid of can centrifugally throw away to contact roller wheel rim, drives connecting moves simultaneously.
Further, on described brace table, be provided with electric switch, this electric switch contacts with the wheel rim of contact roller, when on get rid of when piece gets rid of outside centrifugal and touch electric switch, thereby disconnect the electrical safety loop of elevator.
Further, described contact roller and brace table are hinged, and the compaction degree of adjustable contact roller and guide rail is also provided with the compressor arm being connected with the axle of contact roller on brace table, this compressor arm horizontally set and cover have holddown spring, and contact roller can be pressed on guide rail securely.
Brief description of the drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the structural representation of the utility model elevator governor embodiment;
Fig. 2 is the structural representation of main rope sheave and ratchet in Fig. 1.
Detailed description of the invention
As shown in Figure 1 and Figure 2: elevator governor, comprise brace table 1 and inhead type safety tongs 9, brace table 1 is hinged with the entablatrance 2 of car, and the guide rail 3 of elevator runs through this brace table 1, and inhead type safety tongs 9 is positioned at brace table 1 below and is connected with entablatrance 2.
The track adjusting wheel 4 contacting with guide rail 3 is installed on brace table 1, and the contact roller 5 of compression guide rail 3, contact roller 5 is hinged with brace table 1, and the compressor arm 6 being connected with the axle of contact roller 5 is also installed on brace table 1, and these compressor arm 6 transverse horizontal are installed and cover has holddown spring.Contact roller 5 is coaxially installed with main rope sheave 7, track adjusting wheel 4 is coaxially installed with secondary rope sheave 8, and the head end of steel rope is connected with main rope sheave 7 and walks around secondary rope sheave 8, and the end of steel rope is connected with inhead type safety tongs 9, on main rope sheave 7 with pressing plate 10.Between described contact roller 5 and main rope sheave 7, ratchet 15 is installed, on the wheel face of contact roller 5, be connected with in turn and get rid of block mechanism, swaging clamp 14 and block 17, get rid of block mechanism comprise get rid of piece 11, under get rid of piece 12, on get rid of piece 11, under get rid of piece 12 and connect by connecting rod, on get rid of piece 11 and fix with toggle, toggle is connected by retracing spring 13 with contact roller 5 wheel faces, and toggle is connected with swaging clamp 14.On block 17, with draw-in groove, swaging clamp 14 coordinates with this draw-in groove, and the gap between the ratchet of block 17 and ratchet 15 is relative.On get rid of piece 11 and link with the pressing plate 10 of main rope sheave 7.
The electric switch 16 of elevator is installed on brace table 1, and this electric switch 16 contacts with the wheel rim of contact roller 5, while above getting rid of centrifugal outer the getting rid of of piece 11, touches this electric switch 16, thereby cuts off the electrical safety loop of elevator.
In the situation of the normal operation of lift car, track adjusting wheel 4 and contact roller 5 compress guide rail 3 and rotate, and ratchet 15 and stay cord reel do not rotate.When car speed exceed command speed 115% time, getting rid of block mechanism action drives swaging clamp 14 to depart from block 17, block 17 inserts between the ratchet gap of ratchet 15, make contact roller 5 and ratchet 15 form one, now, get rid of block mechanism promotion pressing plate 10 and compress main rope sheave 7, make winner's rope sheave 7, contact roller 5 and ratchet 15 form one.Along with the movement of car, the steel rope being fixed on main rope sheave 7 starts rolling, mentions inhead type safety tongs 9, inhead type safety tongs 9 on guide rail 3 more card tighter, thereby by elevator brake on guide rail 3.
The foregoing is only the detailed description of the utility model preferred embodiment, be not used for limiting the utility model, the embodiment of all similar variations of doing according to creation spirit of the present utility model, all should be contained among the utility model.
Claims (4)
1. elevator governor, comprise brace table and inhead type safety tongs, it is characterized in that: described brace table is articulated with the entablatrance place of car and is run through by guide rail, brace table is provided with the track adjusting wheel contacting with guide rail, and the contact roller of compression guide rail, this contact roller is coaxially arranged with main rope sheave, track adjusting wheel is coaxially arranged with secondary rope sheave, and the head end of steel rope is connected with main rope sheave and walks around secondary rope sheave, and the end of steel rope is connected with inhead type safety tongs; Between described contact roller and main rope sheave, be provided with ratchet, on the wheel face of contact roller, be connected with in turn and get rid of block mechanism, swaging clamp and block, this swaging clamp and block clamping, block is relative with the ratchet gap of ratchet, this get rid of block mechanism also with main rope sheave with pressing plate interlock.
2. elevator governor according to claim 1, is characterized in that: described in get rid of block mechanism comprise get rid of piece, under get rid of piece, the upper and lower piece that gets rid of connects by connecting rod, above gets rid of piece and toggle is fixed, toggle is connected by retracing spring with contact roller wheel face.
3. elevator governor according to claim 2, is characterized in that: on described brace table, be provided with electric switch, this electric switch contacts with the wheel rim of contact roller.
4. elevator governor according to claim 1, is characterized in that: described contact roller and brace table are hinged, is also provided with the compressor arm being connected with the axle of contact roller on brace table, and this compressor arm horizontally set and cover have holddown spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065954.6U CN203806898U (en) | 2014-02-14 | 2014-02-14 | Elevator speed limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420065954.6U CN203806898U (en) | 2014-02-14 | 2014-02-14 | Elevator speed limiter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203806898U true CN203806898U (en) | 2014-09-03 |
Family
ID=51445685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420065954.6U Active CN203806898U (en) | 2014-02-14 | 2014-02-14 | Elevator speed limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203806898U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421674A (en) * | 2017-06-22 | 2017-12-01 | 赤峰市特种设备检验所 | Power and drop-down force tester are lifted on a kind of elevator governor rope |
| CN108033330A (en) * | 2017-12-14 | 2018-05-15 | 广州广日电梯工业有限公司 | The speed monitoring and brake apparatus of a kind of vertical lifting equipment |
| CN112897276A (en) * | 2021-04-02 | 2021-06-04 | 中建三局集团有限公司 | Safety anti-falling device for elevator |
| CN114074874A (en) * | 2020-08-17 | 2022-02-22 | 湖南大举信息科技有限公司 | Safety device for multi-car parallel elevator |
| CN107421674B (en) * | 2017-06-22 | 2023-09-22 | 内蒙古自治区特种设备检验研究院赤峰分院 | Lift-up tension and pull-down tension tester for elevator speed limiter rope |
-
2014
- 2014-02-14 CN CN201420065954.6U patent/CN203806898U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421674A (en) * | 2017-06-22 | 2017-12-01 | 赤峰市特种设备检验所 | Power and drop-down force tester are lifted on a kind of elevator governor rope |
| CN107421674B (en) * | 2017-06-22 | 2023-09-22 | 内蒙古自治区特种设备检验研究院赤峰分院 | Lift-up tension and pull-down tension tester for elevator speed limiter rope |
| CN108033330A (en) * | 2017-12-14 | 2018-05-15 | 广州广日电梯工业有限公司 | The speed monitoring and brake apparatus of a kind of vertical lifting equipment |
| CN114074874A (en) * | 2020-08-17 | 2022-02-22 | 湖南大举信息科技有限公司 | Safety device for multi-car parallel elevator |
| CN112897276A (en) * | 2021-04-02 | 2021-06-04 | 中建三局集团有限公司 | Safety anti-falling device for elevator |
| CN112897276B (en) * | 2021-04-02 | 2023-01-17 | 中建三局集团有限公司 | Safety anti-falling device for elevator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |