CN101555912B - Rotary-type self-latching safety braking device and working method thereof - Google Patents
Rotary-type self-latching safety braking device and working method thereof Download PDFInfo
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- CN101555912B CN101555912B CN200910107022A CN200910107022A CN101555912B CN 101555912 B CN101555912 B CN 101555912B CN 200910107022 A CN200910107022 A CN 200910107022A CN 200910107022 A CN200910107022 A CN 200910107022A CN 101555912 B CN101555912 B CN 101555912B
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- keyway
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- chute
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Abstract
The invention relates to a rotary-type self-latching safety braking device and a working method thereof. The rotary-type self-latching safety braking device comprises a rotating wheel, an axle, an axle base, a movable pin key and a pin key resetting device. An inner cylindrical surface of the rotating wheel, which is matched with the axle, is provided with a plurality of key slots. The axle is provided with a radial sliding chute which is internally provided with the movable pin key and the pin key resetting device. During the slow rotating process of the rotating wheel, the movable pin key makes slow radial reciprocating motion in the radial sliding chute of the axle correspondingly, and the axle can normally rotate; and when the rotation speed of the rotating wheel suddenly increases, the reciprocating motion of the movable pin key is damaged, one end of the movable pin key is propped into the key slot of the rotating wheel, and the rotating wheel is self-latching braked immediately.The invention has compact structure, simple construction, small volume, good sealing property, sensitive action, high reliability, short braking distance and safe use, and is applicable to the engine ering fields such as building, machinery, metallurgy, mining, vehicles, vessels and the like. When in normal work, the rotary-type self-latching safety braking device slowly runs; and when in dangerous situations, the device fast runs, and the self-latching safety braking device in running is stopped immediately.
Description
Technical field
The present invention relates to a kind of rotary-type self-latching safety braking device and method of work thereof, is slow running and be that danger situation must self-latching safety braking device out of service immediately when moving fast when being applicable to engineering field such as building, machinery, metallurgy, mine, vehicle, boats and ships proper functioning.
Background technique
The building attachment type raise scaffold is the equipment that uses in high-rise and the construction of super highrise building; In use or running; Its lifting or decline process are all slowly carried out; If fast tenesmus then be unusual condition can cause the high-altitude to fall or the device damage accident, it is safe in utilization to guarantee therefore the equipment self-latching safety braking device must to be set.
The construction elevator also is the equipment that uses in high-rise and the construction of super highrise building; In use or running; Its rising and descend is also slowly carried out, if therefore tenesmus then be to cause the high-altitude to fall or the device damage accident fast also must be provided with the equipment self-latching safety braking device.
The material that mechanical industry, metallurgical industry are used transports utensil or line belt; Apparatus of transport in the engineerings such as mining tunnel, boats and ships and ocean; Have many be requirement slowly at the uniform velocity or slowly clearance type operation; If fast operation then be unusual condition can cause casualties or the device damage accident, therefore the equipment self-latching safety braking device must be set.
The safety strip that uses on the vehicle can be pumped when occupant's regular event slowly, but when emergency brake of vehicle; Occupant's upper body sharply leans forward; Safety strip is extracted out fast, can cause personal injury, and therefore self-latching safety braking device must be set blocks safety strip to guarantee occupant's safety.
Engineering fields such as at present many buildings, machinery, metallurgy, mine, vehicle, boats and ships slowly at the uniform velocity or slowly clearance type operation, operation is a unusual condition fast, can cause casualties or the equipment major part of device damage accident is provided with self-latching safety braking device; But, the complex structure that these self-latching safety braking devices have, rate of fault is high; Influenced the normal progress of work, such as the balancing point type fall-preventing device that present attachment type raise scaffold is provided with, complex structure; Be provided with balancing point and follow-up device; Be easy to generate the jam phenomenon in the support body decline process simultaneously, some operator has brought great potential safety hazard with the balancing point human failure; The self-latching safety braking device volume that has is bigger; Lost efficacy easily after using a period of time, and, be easy to cause the high-altitude to fall or the device damage accident in case meet accident; Bring potential safety hazard; Get rid of the centrifugal force that the hammer device utilizes quick rotation to produce and brake such as the self-latching safety braking device of construction elevator is provided with one, it is bulky, and needs periodic maintenance; The self-latching safety braking device complex structure that has, accuracy of manufacturing is had relatively high expectations, such as the automatic triggering braking device on the safety strip of present many automobiles uses; The self-latching safety braking device that has is to adopt electromechanical integration control, and is not only complicated, and cost is also high, and the fault point is many, and line belt and the materials many such as mechanical industry and metallurgical industry at present deliver utensil etc.
Summary of the invention
One of the object of the invention provides that a kind of compact structure, simple structure, volume are little, good seal performance, be active in one's movements, reliability is high, accuracy of manufacturing is relatively low, manufacture cost is lower, stopping distance is short, safe in utilization rotary-type self-latching safety braking device; Slow running during its proper functioning, and be that danger situation must be out of service immediately when moving fast.
The present invention realizes like this; A kind of rotary-type self-latching safety braking device; The wheel shaft that comprises runner, is located in the said runner and is rotatably assorted with the inner cylindrical surface of this runner; Offer some keyways on the inner cylindrical surface of said runner, offer chute corresponding with said keyway and that radially run through on the said wheel shaft, be provided with in the said chute can be in this chute two-way slip and can when the runner quick rotation, snap in the movable pin key that runner is stopped operating; Said movable pin key is provided with the pin key resetting means that this activity pin key is resetted, and said loose pin key length is equal to or slightly less than the degree of depth sum of the diameter and the said keyway of said wheel shaft; Said movable pin key top axial one side is provided with and can touches and can oppress the inclined-plane that this activity pin key radially slides with the incline of said keyway, and the axial bilateral of said movable pin key tail end respectively is provided with and can touches and can oppress the inclined-plane that this activity pin key radially slides with the incline of said keyway.
Another kind of rotary-type self-latching safety braking device provided by the invention; The wheel shaft that comprises runner, is located in the said runner and is rotatably assorted with the inner cylindrical surface of this runner; Offer some keyways on the inner cylindrical surface of said runner; Offer, working position corresponding on the said wheel shaft at vertical position and the chute that radially runs through with said keyway; Be provided with in the said chute can be in this chute two-way slip and can when the runner quick rotation, snap in the movable pin key that runner is stopped operating, the top of said chute is located on the top of said movable pin key, the tail end of said movable pin key is located at the bottom of said chute; Said loose pin key length is equal to or slightly less than the degree of depth sum of the diameter and the said keyway of said wheel shaft; Said movable pin key top axial one side is provided with and can touches and can oppress the inclined-plane that this activity pin key radially slides with the incline of said keyway, and the axial bilateral of said movable pin key tail end respectively is provided with and can touches and can oppress the inclined-plane that this activity pin key radially slides with the incline of said keyway.
Two of the object of the invention provides a kind of method of work of rotary-type self-latching safety braking device, and this method of work is such: runner when slowly just changeing, the inclined-plane on the incline compressing activity pin key top of its keyway; Movable pin key slides to its tail end direction along the chute of wheel shaft; Its tail end slips in the keyway of runner, and runner continues just to change a skew back face of the incline compressing activity pin key tail end of the keyway of runner; Movable pin key slides to its top orientation along the chute of wheel shaft; Its top is slipped in the keyway of runner, so circulation, the forward rotation of realization runner; Runner when slow counter-rotating, a skew back face of the incline compressing activity pin key tail end of the keyway of runner, movable pin key slides to its top orientation along the chute of wheel shaft; Its top is slipped in the runner keyway, and runner continues counter-rotating, and its tail end changes the keyway position of runner over to; Under the effect of pin key resetting means or self gravitation, movable pin key tail end slips in the keyway of runner, and the keyway of runner is deviate from its top; So circulation, the backward rotation of realization runner; Its self-latching safety braking is achieved in that when the runner backward rotation speeds up; After the tail end of movable pin key is oppressed by the keyway incline of runner; Its time slot that resets is greater than the time slot on the incline compressing activity pin key top of the adjacent keyway of the keyway of this runner, and movable pin key can not in time reset, and its top heads in the keyway of runner to deviate from fully; Thereby pin the backward rotation of runner, realize the self-latching safety braking of operational outfit.
Compact structure of the present invention, simple structure, volume are little, good seal performance, be active in one's movements, reliability is high, stopping distance is short, safe in utilization, is slow running and be that danger situation must self-latching safety braking device out of service immediately when moving fast when being applicable to engineering field such as building, machinery, metallurgy, mine, vehicle, boats and ships proper functioning.
Description of drawings
Fig. 1 is the axial cross-section cutaway view of the rotary-type self-latching safety braking device that provides of the embodiment of the invention one;
Fig. 2 is the axial cross-section cutaway view of the runner backward rotation several angle among Fig. 1;
Fig. 3 is the axial cross-section cutaway view of the rotary-type self-latching safety braking device that provides of the embodiment of the invention two;
Fig. 4 is the application schematic representation that rotary-type self-latching safety braking device that the embodiment of the invention three is provided is applied in the attachment type raise scaffold field;
Fig. 5 is the A-A sectional view among Fig. 4.
Among the figure:
The 1-runner; The 11-keyway; The 12-runner boss;
The 2-wheel shaft; The 21-chute; The movable pin key of 3-;
The movable pin key of 31-top; The movable pin key tail end of 32-; 4-pin key resetting means;
The 5-guide rail; The 51-cross bar; The 6-guide bracket.
Embodiment
In order to make the object of the invention, technological scheme and advantage clearer,, the present invention is further elaborated below in conjunction with accompanying drawing and embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
Embodiment one:
Show like Fig. 1 and Fig. 2; A kind of rotary-type self-latching safety braking device that this example provides; The wheel shaft 2 that comprises runner 1, is located in the said runner 1 and is rotatably assorted with the inner cylindrical surface of this runner 1; Offer some keyways 11 on the inner cylindrical surface of said runner 1; Offer chute 21 corresponding with said keyway 11 and that radially run through on the said wheel shaft 2, be provided with in the said chute 21 can two-way slip in this chute 21 movable pin key 3, said movable pin key 3 is provided with the pin key resetting means 4 that this activity pin key 3 is resetted; This resetting means 4 specifically can be a pressure spring, and the length of said movable pin key 3 is equal to or slightly less than the degree of depth sum of the diameter and the said keyway 11 of said wheel shaft 2.When the top 31 of said movable pin key 3 headed in the said runner keyway 11,32 of tail ends were deviate from said runner keyway 11, or the tail end 32 of said movable pin key 3 heads in the said runner keyway 11, and said runner keyway 11 is deviate from 31 on its top.
Further, said wheel shaft 2 and an axle block fixedly (not shown) are connected, and are provided with the damping device (not shown) between said wheel shaft 2 and the axle block, and said damping device both was connected with said wheel shaft 2, also was connected with said axle block; In the working procedure, this damping device can produce certain buffer function when self-latching safety braking, to reduce the impact to wheel shaft 2.
Further; Top 31 axial sides of said movable pin key 3 are provided with and can touch and can oppress the inclined-plane 311 that this activity pin key 3 radially slides with the incline of said keyway 11, and the tail end 32 axial bilaterals of said movable pin key 3 respectively are provided with and can touch and can oppress the inclined-plane 321 that this activity pin key 3 radially slides with the incline of said keyway 11.
Compact structure of the present invention, simple structure, volume be little, be active in one's movements, reliability is high, accuracy of manufacturing is relatively low, manufacture cost is lower, stopping distance is short, safe in utilization; And workpiece is in complete sealing state during owing to work, and has significantly reduced the pollution of working environment to it.
Embodiment two:
Show like Fig. 3; This example is roughly the same with embodiment one; Institute's difference is: omitted pin key resetting means 4, chute 21 working positions of wheel shaft 2 are arranged on vertical position, the top of said chute 21 is located on the top 31 of said movable pin key 3; The tail end 32 of said movable pin key 3 is located at the bottom of said chute 21, and the applied field that the gravity of utilization activity pin key 3 produces is impelled and himself resetted.
Like Fig. 1 ~ shown in Figure 3, the present invention also provides embodiment one and embodiment two method of work of related a kind of rotary-type self-latching safety braking device: runner 1 when slowly just changeing, the inclined-plane 311 on incline compressing activity pin key 3 tops 31 of its keyway 11; Movable pin key 3 slides to its tail end 32 directions along the chute 21 of wheel shaft 2; Its tail end 32 slips in the keyway 11 of runner 1, and runner 1 continues just to change a skew back face 321 of incline compressing activity pin key 3 tail ends 32 of the keyway 11 of runner 1; Movable pin key 3 slides to its top 31 directions along the chute 21 of wheel shaft 2; Its top 31 is slipped in the keyway 11 of runner 1, so circulation, the forward rotation of realization runner 1; Runner 1 when slow counter-rotating, a skew back face 321 of incline compressing activity pin key 3 tail ends 32 of the keyway 11 of runner 1, movable pin key 3 slides to its top 31 directions along the chute 21 of wheel shaft 2; Its top 31 is slipped in the keyway 11 of runner 1; Runner 1 continues counter-rotating, and its tail end 32 changes keyway 11 positions of runner 1 over to, under the effect of pin key resetting means 4 or self gravitation; Movable pin key 3 tail ends 32 slip in the keyway 11 of runner 1; The keyway 11 of runner 1 is deviate from its top 31, so circulation, the backward rotation of realization runner 1; Its self-latching safety braking is achieved in that when runner 1 backward rotation speeds up; After the tail end 32 of movable pin key 3 is oppressed by keyway 11 inclines of runner 1; Its time slot that resets is greater than the time slot on incline compressing activity pin key 3 tops 31 of the adjacent keyway of the keyway 11 of this runner 1, and movable pin key 3 can not in time reset, and its top 31 heads in the keyway 11 of runner 1 to deviate from; Thereby pin the backward rotation of runner 1, realize the self-latching safety braking of operational outfit.
Further, the rotary-type self-latching safety installations that can be provided with through a plurality of coaxial mirror images in the real work, can realize can two-way slow running the equipment bidirectional self-locking safety brake during operation fast suddenly.
Embodiment three:
Consult Fig. 1 ~ Fig. 5; The present invention also provides a kind of rotary-type self-latching safety braking device to be applied in the instance in attachment type raise scaffold field; Be a kind of rotating wheel falling prevention device of attachment type raise scaffold, it comprises guide rail 5 and guide bracket 6, and said guide rail 5 is connected with guide bracket 6 sliding sleeves; Be arranged at intervals with cross bar 51 on the said guide rail 5, said guide bracket 5 be provided with can with the runner 1 of said cross bar 51 engagement in rotation; Foregoing a kind of rotary-type self-latching safety braking device is set on the wheel hub 12 of runner 1.
The method of work of the rotating wheel falling prevention device of a kind of attachment type raise scaffold provided by the present invention is following: scaffold is when slowly promoting, and cross bar 51 engagements at the interval that is provided with on runner 1 and the guide rail 5 are slowly just changeed; When scaffold slowly descends, the slowly counter-rotating of cross bar 51 engagements at the interval that is provided with on runner 1 and the guide rail 5.When scaffold slowly promotes; The inclined-plane 311 on incline compressing activity pin key 3 tops 31 of the keyway 11 of runner boss 12, movable pin key 3 slides to its tail end 32 directions along the chute 21 of wheel shaft 2, and its tail end 32 slips in the keyway 11 of runner 1; Runner 1 continues just to change; One skew back face 321 of incline compressing activity pin key 3 tail ends 32 of the keyway 11 of wheel hub 12, movable pin key 3 slides to its top 31 directions along the chute 21 of wheel shaft 2, and its top 31 is slipped in the keyway 11 of runner 1; So circulation realizes that scaffold slowly promotes.When scaffold slowly descends, a skew back face 321 of incline compressing activity pin key 3 tail ends 32 of the keyway 11 of runner boss 12, movable pin key 3 slides to its top 31 directions along the chute 21 of wheel shaft 2; Its top 31 is slipped in the keyway 11 of runner 1; Runner 1 continues counter-rotating, and its tail end 32 changes keyway 11 positions of runner 1 over to, under the effect of pin key resetting means 4 or self gravitation; Movable pin key 3 tail ends 32 slip in the keyway 11 of runner 1; The keyway 11 of runner 1 is deviate from its top 31, and so circulation realizes the slow decline of scaffold.Its self-latching safety braking is achieved in that when runner 1 backward rotation speeds up; After the tail end 32 of movable pin key 3 is oppressed by keyway 11 inclines of runner boss 12; Its time slot that resets is greater than the time slot on incline compressing activity pin key 3 tops 31 of the adjacent keyway of the keyway 11 of this runner boss 12; Movable pin key 3 can not in time reset, and its top 31 heads in the keyway 11 of runner boss 12 to deviate from, thus the backward rotation of pinning runner 1; And then make runner 1 block the cross bar 51 that is provided with at interval on the guide rail 5, prevent that scaffold from continuing to fall.
The above is merely preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of within spirit of the present invention and principle, being done, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. rotary-type self-latching safety braking device; The wheel shaft that comprises runner, is located in the said runner and is rotatably assorted with the inner cylindrical surface of this runner; It is characterized in that: offer some keyways on the inner cylindrical surface of said runner; Offer chute corresponding with said keyway and that radially run through on the said wheel shaft; Be provided with in the said chute can be in this chute two-way slip and can when the runner quick rotation, snap in the movable pin key that runner is stopped operating, said movable pin key is provided with the pin key resetting means that this activity pin key is resetted;
Said loose pin key length is equal to or slightly less than the degree of depth sum of the diameter and the said keyway of said wheel shaft; Said movable pin key top axial one side is provided with and can touches and can oppress the inclined-plane that this activity pin key radially slides with the incline of said keyway, and the axial bilateral of said movable pin key tail end respectively is provided with and can touches and can oppress the inclined-plane that this activity pin key radially slides with the incline of said keyway.
2. rotary-type self-latching safety braking device; The wheel shaft that comprises runner, is located in the said runner and is rotatably assorted with the inner cylindrical surface of this runner; It is characterized in that: offer some keyways on the inner cylindrical surface of said runner; Offer, working position corresponding on the said wheel shaft at vertical position and the chute that radially runs through with said keyway; Be provided with in the said chute can be in this chute two-way slip and can when the runner quick rotation, snap in the movable pin key that runner is stopped operating, the top of said chute is located on the top of said movable pin key, the tail end of said movable pin key is located at the bottom of said chute; Said loose pin key length is equal to or slightly less than the degree of depth sum of the diameter and the said keyway of said wheel shaft; Said movable pin key top axial one side is provided with and can touches and can oppress the inclined-plane that this activity pin key radially slides with the incline of said keyway, and the axial bilateral of said movable pin key tail end respectively is provided with and can touches and can oppress the inclined-plane that this activity pin key radially slides with the incline of said keyway.
3. like the method for work of each described a kind of rotary-type self-latching safety braking device in the claim 1 ~ 2, it is characterized in that: runner when slowly just changeing, the inclined-plane on the incline compressing activity pin key top of its keyway; Movable pin key slides to its tail end direction along the chute of wheel shaft; Its tail end slips in the keyway of runner, and runner continues just to change a skew back face of the incline compressing activity pin key tail end of the keyway of runner; Movable pin key slides to its top orientation along the chute of wheel shaft; Its top is slipped in the keyway of runner, so circulation, the forward rotation of realization runner; Runner when slow counter-rotating, a skew back face of the incline compressing activity pin key tail end of the keyway of runner, movable pin key slides to its top orientation along the chute of wheel shaft; Its top is slipped in the keyway of runner, and runner continues counter-rotating, and its tail end changes the keyway position of runner over to; Under the effect of pin key resetting means or self gravitation, movable pin key tail end slips in the keyway of runner, and the keyway of runner is deviate from its top; So circulation, the backward rotation of realization runner; Its self-latching safety braking is achieved in that when the runner backward rotation speeds up; After the tail end of movable pin key is oppressed by the keyway incline of runner; Its time slot that resets is greater than the time slot on the incline compressing activity pin key top of the adjacent keyway of the keyway of this runner, and movable pin key can not in time reset, and its top heads in the keyway of runner to deviate from fully; Thereby pin the backward rotation of runner, realize the self-latching safety braking of operational outfit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910107022A CN101555912B (en) | 2009-04-29 | 2009-04-29 | Rotary-type self-latching safety braking device and working method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910107022A CN101555912B (en) | 2009-04-29 | 2009-04-29 | Rotary-type self-latching safety braking device and working method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101555912A CN101555912A (en) | 2009-10-14 |
| CN101555912B true CN101555912B (en) | 2012-10-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910107022A Expired - Fee Related CN101555912B (en) | 2009-04-29 | 2009-04-29 | Rotary-type self-latching safety braking device and working method thereof |
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| CN (1) | CN101555912B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101929512B (en) * | 2010-09-09 | 2012-10-31 | 无锡市凯旋电机有限公司 | Full-automatic bidirectional clutch |
| CN104100077B (en) * | 2014-07-22 | 2017-01-18 | 江苏揽月工程科技发展股份有限公司 | Swing pointer type fall-protection wall attachment device |
| CN104818839A (en) * | 2015-05-11 | 2015-08-05 | 江苏省华建建设股份有限公司 | Falling preventing device of lifting type scaffold |
| CN106988523B (en) * | 2017-05-10 | 2023-05-23 | 深圳市中升建科科技发展有限公司 | Sliding pin brake wheel type anti-falling device |
| CN109131179A (en) * | 2018-05-08 | 2019-01-04 | 北京北汽模塑科技有限公司 | A kind of lightweight multiple-protection high security bumper |
| CN109098427B (en) * | 2018-08-03 | 2023-08-29 | 华西工程科技(深圳)股份有限公司 | Lifting scaffold falling maximum speed controllable anti-falling runner |
| CN112814357A (en) * | 2020-12-31 | 2021-05-18 | 深圳市特辰科技股份有限公司 | Shaft type centrifugal slider rotating wheel anti-falling climbing frame and assembling method thereof |
| CN115464440B (en) * | 2022-08-23 | 2024-05-17 | 浙江博秦精密工业有限公司 | Jig for CNC finish machining of side-pushing self-locking mobile phone accessory |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3776368A (en) * | 1971-12-13 | 1973-12-04 | A Brauss | Overspeed and positioning device for a shaft |
| CN2799738Y (en) * | 2005-05-27 | 2006-07-26 | 谢京刚 | Safety lock for high-rise operation cradle |
| CN101302890A (en) * | 2008-06-30 | 2008-11-12 | 深圳市特辰科技有限公司 | Runner drop proof positioning type elevating scaffold and working method thereof |
| EP1734995B1 (en) * | 2004-04-15 | 2010-07-14 | Galaxy Biotech, LLC | Monoclonal antibodies to hepatocyte growth factor |
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2009
- 2009-04-29 CN CN200910107022A patent/CN101555912B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3776368A (en) * | 1971-12-13 | 1973-12-04 | A Brauss | Overspeed and positioning device for a shaft |
| EP1734995B1 (en) * | 2004-04-15 | 2010-07-14 | Galaxy Biotech, LLC | Monoclonal antibodies to hepatocyte growth factor |
| CN2799738Y (en) * | 2005-05-27 | 2006-07-26 | 谢京刚 | Safety lock for high-rise operation cradle |
| CN101302890A (en) * | 2008-06-30 | 2008-11-12 | 深圳市特辰科技有限公司 | Runner drop proof positioning type elevating scaffold and working method thereof |
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| CN101555912A (en) | 2009-10-14 |
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Granted publication date: 20121003 |