CN201010397Y - Track speed-limiting device - Google Patents
Track speed-limiting device Download PDFInfo
- Publication number
- CN201010397Y CN201010397Y CNU2007200833222U CN200720083322U CN201010397Y CN 201010397 Y CN201010397 Y CN 201010397Y CN U2007200833222 U CNU2007200833222 U CN U2007200833222U CN 200720083322 U CN200720083322 U CN 200720083322U CN 201010397 Y CN201010397 Y CN 201010397Y
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- wheel
- friction
- speed
- track
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- Expired - Fee Related
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Abstract
The utility model relates to an orbit speed limiting device which belongs to the safe device field of steel wire pulling orbit type elevating transporter; the orbit speed limiting device comprises a friction speed limiting device, a clutch, a chain wheel driving mechanism and a clamping pressing mechanism; the friction speed limiting device, the clutch and the chain wheel driving mechanism are united as an integrated driving mechanism through the chain wheel driving mechanism; the clamping pressing mechanism consists of a pressing wheel supporting frame, a pressing spring supporting frame, a hinged supporting interlinking plate and a speed limiting device base, which are connected with each other through shaft pins and then constitutes a four connecting rod mechanism; the integrated driving mechanism is connected with the four connecting rod mechanism, and the hinged points are respectively the hinged point (B) and the hinged point (G), which makes a pressing wheel and a friction speed limiting wheel are close to the two sides of an orbit. When an elevator overspeeds unexpectedly, the speed limiting device can limit the speed of the elevator sensitively, synchronously and swiftly; the utility model has the advantages of reliable performance, safety and stability; as the friction speed limiting wheel is an independent component, the friction speed limiting wheel in one specification and one size can be replaced by the friction speed limiting wheel in the other specification and the other size according to the speed of an elevator and meets the needs of different orbit operation environments.
Description
Technical field
A kind of track speed-limit device of the utility model belongs to rope traction rail mounted lifting transport plane safety device field, particularly building hoist and cage lifter safety device.
Background technology
Building hoist and elevator are the rail transport machinery that is widely used in construction site and the high-rise, and its safety plays crucial effects to people's safety of life and property.Therefore, prevent the safety arrestment protection of lifting machinery overspeed and accidental falling, this relates to the key subjects of people's safety of life and property, is the target of insider's unremitting pursue forever.
The utility model content
The purpose of this utility model provides a kind of track speed-limit device, this device is installed on lift car or building hoist cage top, when lift car or building hoist up-and-down movement, the friction fifth wheel of track speed-limit device rolls thereupon in orbit, when gliding because of unforeseen circumstances lift car or building hoist cage hypervelocity or disconnected rope when falling, the friction fifth wheel is immediately by the transmission of chain wheel driving mechanism speedup, drive connected power-transfer clutch, and by the torque output wheel output torque of power-transfer clutch, traction steel wire by its captive joint drives safety tongs work, takes place to prevent lift car or building hoist cage operation hypervelocity or accidental falling accident.
The purpose of this utility model is achieved through the following technical solutions:
This track speed-limit device comprises that friction surveys mechanism, power-transfer clutch, and chain wheel driving mechanism and clamping hold-down mechanism, the friction velocity measurement mechanisms is made up of friction fifth wheel 11 and the friction wheel shaft 26 that tests the speed, and test the speed wheel shaft 26 of rub fifth wheel 11 and friction is captiveed joint by key;
Power-transfer clutch is by clutch spindle 15, steel ball 16, steel ball dish 17, engine side half coupling 18, the driven dish 19 that connects, torque output wheel 20, governing spring 22, speed adjustment screw 23 and clutch-bell cover 25 are formed, steel ball 16, steel ball dish 17, engine side half coupling 18 passes through the main spindle multiple spline sliding connection with clutch spindle 15, driven connect the dish 19 with clutch spindle 15 for being rotatably connected, engine side half coupling is a T type two-thread screw, the driven dish 19 that connects is T type double end nut, torque output wheel 20 is captiveed joint by key with the driven dish 19 that connects, be fixed with haulage cable 21 on the torque output wheel 20, clutch-bell cover 25 is by bearings clutch spindle 15;
Chain wheel driving mechanism is made up of drive sprocket 13, driven sprocket 14 and chain 12, drive sprocket 13 is captiveed joint by key and the friction wheel shaft 26 that tests the speed, driven sprocket 14 is captiveed joint with clutch spindle 15 by spline, make friction velocity measurement mechanisms, power-transfer clutch and chain wheel driving mechanism become one transmission device, i.e. velocity limiter main body;
The clamping hold-down mechanism is by contact roller support 4, holddown spring support 5, strand interlock plate 6 and velocity limiter base 24, connect and compose a secondary four-bar linkage through bearing pin respectively, compress support 4 lower ends and velocity limiter base 24 bearing pins are connected with wring abut A, compress support 4 upper ends and holddown spring support 5 bearing pins are connected with wring abut E, holddown spring support 5 other ends are connected with wring abut F with strand interlock plate 6 one an end bearing pin, the other end of a strand interlock plate 6 and the column bearing pin of velocity limiter base 24 are connected with wring abut C, holddown spring support 5 tops have the hole, holddown spring adjusting lever 9 therefrom passes, on holddown spring support 5 tops holddown spring 8 and holddown spring adjustment nut 7 are arranged, contact roller 3 is installed on the contact roller support 4, and track gear wheel 2 is installed on the velocity limiter base 24;
The velocity limiter main body that becomes with chain wheel driving mechanism by friction velocity measurement mechanisms, power-transfer clutch, be connected with wring abut B by bearing pin and velocity limiter base 24 columns respectively, be connected with wring abut G with holddown spring adjusting lever 9, contact roller 3 and friction fifth wheel 11 abut against track 1 both sides.
Wring abut B is positioned at the top of the O1-O2 line of friction speed limit wheel shaft axle center O1 and clutch spindle axle center O2, the center of gravity of velocity limiter main body is partial to wring abut B right side, it is power-transfer clutch one side, friction fifth wheel 11 lifts naturally and leans against on the cage lifter track 1 under state of nature, and rub fifth wheel 11 and track 1 plane points of tangency D become 10-15 ° of angle to the line of wring abut B and the friction wheel shaft axle center O1 that tests the speed approximately with the line of clutch spindle axle center O2.
When the construction cage lifter normally moves, this track velocity limiter friction fifth wheel 11 rolls on cage lifter track 1, and by the transmission of chain wheel driving mechanism speedup, drive clutch spindle 15 rotations, engine side half coupling 18, steel ball 16, steel ball dish 17, with main shaft 15 rotations, driven to connect dish 19 static, and power-transfer clutch is in treats mode of operation.When the construction cage lifter meets accident the descending or disconnected rope of hypervelocity when falling dangerous situation, friction fifth wheel 11 rotating speeds are accelerated synchronously with the car descending speed, also accelerate synchronously with drive sprocket 13 rotating speeds that friction fifth wheel 11 is coaxial, drive driven sprocket 14 by chain 12 and reach the clutch spindle 15 further rev ups that pass through the spline captive joint with it, when spindle speed is increased to power-transfer clutch setting working value, power-transfer clutch starts immediately and is mode of operation: the power-transfer clutch of receiving overspeed signal is under the axial component of steel ball centrifugal mechanism promotes, power-transfer clutch T type two-thread screw engine side half coupling 18 is when keeping rotation, the resistance that overcomes governing spring 22 moves axially, combine with the driven dish 19 that connects of T type double end nut, as threaded screw-in nut, make engine side half coupling 18 screw and combine with the driven dish 19 that connects, be difficult for throwing off voluntarily, the driven dish 19 that connects begins to rotate with engine side half coupling 18, and the torque output wheel 20 that drives by the key captive joint rotates, external output torque, and the safety arrestment pincers worker work by the supporting installation of 21 pullings of the haulage cable on the torque output wheel 20; The resistive torque that the fifth wheel 11 that meanwhile rubs is subjected to increases rapidly, have by on orbit plane, rolling to the excessive trend of sliding, friction drag increases rapidly between friction speed limited wheel and guide level, the friction drag of this increase produces the additional torque around wring abut B clickwise to the velocity limiter main body mechanism, impel friction fifth wheel 11 upwards to lift, further push track 1, as same eccentric hold-down mechanism, positive pressure between friction fifth wheel 11 and the track increases automatically, positive pressure is also increasing when friction force increases, the increase of positive pressure impels friction force to increase again, having guaranteed has enough power to make velocity limiter drive safety tongs work at the fifth wheel that rubs before slip excessively by rolling, the overspeed or the falling accident generation when restricting of breaking when the cage lifter of avoiding constructing meets accident.
The speed-limit device of the utility model velocity limiter as the overspeed of rail mounted elevator or when falling, its speed limit sensitivity, quick synchronously, when the accident hypervelocity takes place, this device can pass to power-transfer clutch with the synchronous speedup that exceeds the speed limit unexpectedly synchronously, by the rotary torque of clutch synchronization with the speedup generation, transmit the safety tongs of supporting installation by the moment of torsion output wheel synchronously and implement synchronous braking, its dependable performance, safety and stability, strong to different track operation condition comformabilitys, the friction fifth wheel that adopts is a stand-alone assembly, can adopt chain drive to carry out transmission of power and realize speedup between friction fifth wheel and the power-transfer clutch according to the different conversion friction of elevator speed speed limited wheel specification, this transmission device is simple and reliable and easy to implement, the clamping hold-down mechanism is a secondary four-bar linkage, by the ingenious configuration of wring abut position, make this velocity limiter friction speed limited wheel compacted setting of spring bar mention be close to track in, the hold-down mechanism contact roller also is close to track from the track opposite side, and is perfectly safe.
Description of drawings
Fig. 1 the utility model apparatus structure reaches and at track scheme drawing is set
Fig. 2 the utility model chain sprocket drive connection diagram
Fig. 3 the utility model velocity limiter agent structure scheme drawing
The specific embodiment
This velocity limiter base is mounted on lift car or loading building hoist cage top by four high strength bolts, make velocity limiter friction fifth wheel 11 and contact roller 3 place elevator or elevator track 1 both sides respectively, tie bolt on the fastening good velocity limiter base 24, adjust the pressure of holddown spring 8 by adjusting holddown spring adjustment nut 7 again, thereby adjust the suitable initial pressure of 1 on friction fifth wheel 11 and track, the initial pressure that also corresponding change contact roller 3 of while and track are 1, lock holddown spring adjustment nut 7 then, velocity limiter friction fifth wheel 11 and contact roller 3 are clamped at the both sides of track 1.Because wring abut B is positioned at the test the speed top of line of wheel shaft axle center O1 and clutch spindle axle center O2 of friction, the center of gravity of velocity limiter main body is partial to wring abut B right side, it is power-transfer clutch one side, under state of nature, velocity limiter friction fifth wheel 11 1 sides are lifted naturally, friction fifth wheel 11 leans against on the cage lifter orbit plane, and friction fifth wheel 11 and track 1 plane points of tangency D approximately become 10-15 ° angle with the speed limited wheel axle center O1 that rubs with Steel Ball Centrifugal Clutch O2 line to the line of wring abut B.
When lift car or elevator craning cage normally move up and down, friction fifth wheel 11 rolls on cage lifter track 1, and by chain drive drive sprocket 13, chain 12 and the rotation of driven sprocket 14 driving Steel Ball Centrifugal Clutch main shafts 15 speedups, steel ball 16, steel ball dish 17, engine side half coupling 18 all rotate with clutch spindle 15 synchronous speedups, the driven dish 19 that connects is in staticly, and power-transfer clutch is in treats mode of operation.
When the construction cage lifter meets accident the descending or disconnected rope of hypervelocity when falling situation, friction fifth wheel 11 rotating speeds are accelerated synchronously with car, also increase extraordinarily fast synchronously by chain-driving bonded assembly clutch spindle 15 rotating speeds, when this speed surpasses the command speed numerical value of power-transfer clutch setting, Steel Ball Centrifugal Clutch startup work, under the promotion of steel ball centrifugal mechanism, T type two-thread screw engine side half coupling 18 is when keeping rotation, the resistance axial motion that overcomes governing spring 22 combines as threaded screw-in nut with the driven dish 19 that connects of T type double end nut, and drive 20 rotations of torque output wheel, drive supporting safety tongs through haulage cable 21 external output torques and implement safety arrestment.The resistive torque that the fifth wheel 11 that meanwhile rubs is subjected to increases rapidly, have by on orbit plane by rolling to the excessive trend of sliding, friction drag increases rapidly between friction fifth wheel 11 and the track 1, the friction drag of this increase produces the additional torque around wring abut B clickwise to the velocity limiter main body, impel friction fifth wheel 11 upwards to lift further extruding elevator rail 1, its principle such as same eccentric hold-down mechanism, the positive pressure that friction fifth wheel 11 and track are 1 increases automatically, positive pressure is also increasing when friction force increases, the increase of positive pressure impels friction force to increase again, having guaranteed has enough power to make velocity limiter drive safety tongs work at the friction fifth wheel before sliding excessively by rolling, and by safety tongs lift car or loading building hoist cage are stopped in orbit, when the cage lifter of avoiding constructing meets accident when overspeed or disconnected rope falling accident take place.
Claims (6)
1. track speed-limit device, comprise the friction velocity measurement mechanisms, power-transfer clutch, chain wheel driving mechanism, the clamping hold-down mechanism, the velocity measurement mechanisms that it is characterized in that rubbing is made up of friction fifth wheel (11) and the friction wheel shaft (26) that tests the speed, friction fifth wheel (11) is captiveed joint by key with the friction wheel shaft (26) that tests the speed, power-transfer clutch is by clutch spindle (15), steel ball (16), steel ball dish (17), engine side half coupling (18), the driven dish (19) that connects, torque output wheel (20), governing spring (22), speed adjustment screw (23) and clutch-bell cover (25) are formed, chain wheel driving mechanism is by drive sprocket (13), driven sprocket (14) and chain (12) are formed, drive sprocket (13) and the friction wheel shaft (26) that tests the speed is captiveed joint by key, driven sprocket (14) is captiveed joint through spline with clutch spindle (15), make the friction velocity measurement mechanisms, power-transfer clutch, chain wheel driving mechanism is integral transmission device, it is the velocity limiter main body, the clamping hold-down mechanism is by compressing support (4), holddown spring support (5), a strand interlock plate (6) and velocity limiter base (24) connect and compose a four-bar linkage through bearing pin, track gear wheel (2) is installed on this four-bar linkage, contact roller (3) and holddown spring adjusting lever (9), this velocity limiter main body, be connected with velocity limiter base (24) column through bearing pin, wring abut (B) is arranged, be connected with holddown spring adjusting lever (9), wring abut (G) is arranged, and contact roller (3) and friction fifth wheel (11) abut against the both sides of track (1) respectively.
2. according to a kind of track speed-limit device of claim 1, it is characterized in that described support (4) lower end that compresses through bearing pin bonded assembly four-bar linkage is connected with velocity limiter base (24) bearing pin, wring abut (A) is arranged, compressing support (4) upper end is connected with holddown spring support (5) one end bearing pins, wring abut (E) is arranged, holddown spring support (5) other end is connected with strand interlock plate (6) one an end bearing pin, wring abut (F) is arranged, strand interlock plate (a 6) other end is connected with velocity limiter base (24) column bearing pin, wring abut (C) is arranged, holddown spring adjusting lever (9) vertically passes holddown spring support (5), holddown spring (8) and holddown spring adjustment nut (7) are arranged at the top of holddown spring adjusting lever (9), contact roller (3) is installed in and compresses on the support (4), and track gear wheel (2) is installed on the velocity limiter base (24).
3. according to a kind of track speed-limit device of claim 1, it is characterized in that described wring abut (B) is positioned at the test the speed top of line of wheel shaft axle center (O1) and clutch spindle axle center (O2) of friction, the point of contact (D) on rub fifth wheel (11) and track (1) plane and the line of wring abut (B) and the friction wheel shaft axle center (O1) of testing the speed becomes 10-15 ° of angle approximately with clutch spindle axle center (O2) line.
4. according to a kind of track speed-limit device of claim 1, the steel ball (16), steel ball dish (17), the engine side half coupling (18) that it is characterized in that described power-transfer clutch pass through the main spindle multiple spline sliding connection with clutch spindle (15), driven dish (19) and the clutch spindle (15) of connecing is for being rotatably connected, torque output wheel (20) is captiveed joint by key with the driven dish (19) that connects, and is fixedly connected with haulage cable (21) on the torque output wheel (20).
5. according to a kind of track speed-limit device of claim 4, it is characterized in that described engine side half coupling (18) is a T type two-thread screw, the driven dish (19) that connects is a T type double end nut.
6. according to a kind of track speed-limit device of claim 4, it is characterized in that the haulage cable (21) that installs on the described torque output wheel (20) is connected with outside supporting safety tongs actuating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200833222U CN201010397Y (en) | 2007-01-26 | 2007-01-26 | Track speed-limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200833222U CN201010397Y (en) | 2007-01-26 | 2007-01-26 | Track speed-limiting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201010397Y true CN201010397Y (en) | 2008-01-23 |
Family
ID=39045337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200833222U Expired - Fee Related CN201010397Y (en) | 2007-01-26 | 2007-01-26 | Track speed-limiting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201010397Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391615B (en) * | 2008-08-08 | 2010-12-29 | 北京世纪东方国铁科技股份有限公司 | Overspeed proof monitoring and recording device |
| CN102211726A (en) * | 2010-04-02 | 2011-10-12 | 涂翼民 | Speed sensing overspeed triggering device for cage and counterweight |
| CN102602770A (en) * | 2012-03-21 | 2012-07-25 | 希姆斯电梯(中国)有限公司 | Overspeed protection mechanism for assisting ladder |
| CN104058312A (en) * | 2014-06-09 | 2014-09-24 | 徐州市工大三森科技有限公司 | Force limiting double releasing cage locking device |
| CN103818797B (en) * | 2014-03-24 | 2016-01-20 | 袁昭成 | Based on velocity limiter and the safety tongs linked system of elevator |
| CN109110703A (en) * | 2018-09-27 | 2019-01-01 | 无锡星亿智能环保装备股份有限公司 | A kind of braking safety device for elevating mechanism |
| WO2020211662A1 (en) * | 2019-04-15 | 2020-10-22 | 杭州沪宁电梯部件股份有限公司 | Roller speed measuring apparatus |
-
2007
- 2007-01-26 CN CNU2007200833222U patent/CN201010397Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391615B (en) * | 2008-08-08 | 2010-12-29 | 北京世纪东方国铁科技股份有限公司 | Overspeed proof monitoring and recording device |
| CN102211726A (en) * | 2010-04-02 | 2011-10-12 | 涂翼民 | Speed sensing overspeed triggering device for cage and counterweight |
| CN102211726B (en) * | 2010-04-02 | 2014-06-18 | 涂翼民 | Speed sensing overspeed triggering device for cage and counterweight |
| CN102602770A (en) * | 2012-03-21 | 2012-07-25 | 希姆斯电梯(中国)有限公司 | Overspeed protection mechanism for assisting ladder |
| CN102602770B (en) * | 2012-03-21 | 2013-09-18 | 希姆斯电梯(中国)有限公司 | Overspeed protection mechanism for assisting ladder |
| CN103818797B (en) * | 2014-03-24 | 2016-01-20 | 袁昭成 | Based on velocity limiter and the safety tongs linked system of elevator |
| CN104058312A (en) * | 2014-06-09 | 2014-09-24 | 徐州市工大三森科技有限公司 | Force limiting double releasing cage locking device |
| CN104058312B (en) * | 2014-06-09 | 2016-03-30 | 徐州市工大三森科技有限公司 | A kind of limiter two release lock tank arrangement |
| CN109110703A (en) * | 2018-09-27 | 2019-01-01 | 无锡星亿智能环保装备股份有限公司 | A kind of braking safety device for elevating mechanism |
| WO2020211662A1 (en) * | 2019-04-15 | 2020-10-22 | 杭州沪宁电梯部件股份有限公司 | Roller speed measuring apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: CO-PATENTEE TO: JIANG ANJUN ^ |
|
| CU01 | Correction of utility model patent |
Correction item: Co-patentee Correct: Jiang Anjun Number: 04 Page: The title page Volume: 24 |
|
| CU03 | Correction of utility model patent gazette |
Correction item: Co-patentee Correct: Jiang Anjun Number: 04 Volume: 24 |
|
| ERR | Gazette correction |
Free format text: CORRECT: CO-PATENTEE; FROM: NONE ^ TO: JIANG ANJUN ^ |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080123 Termination date: 20150126 |
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| EXPY | Termination of patent right or utility model |