CN102992140A - Rate-limiting falling protector used for single rope lifting in vertical shaft - Google Patents
Rate-limiting falling protector used for single rope lifting in vertical shaft Download PDFInfo
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- CN102992140A CN102992140A CN2011102910417A CN201110291041A CN102992140A CN 102992140 A CN102992140 A CN 102992140A CN 2011102910417 A CN2011102910417 A CN 2011102910417A CN 201110291041 A CN201110291041 A CN 201110291041A CN 102992140 A CN102992140 A CN 102992140A
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- rope
- falling protector
- speed limit
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- hoisting
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Abstract
The invention discloses a rate-limiting falling protector used for single rope lifting in a vertical shaft. The rate-limiting falling protector comprises a rope clamp, a buffer, an electric drive pusher, guide wheels, rope sheaves, a support framework and an auxiliary buffer rope. The auxiliary buffer rope is wound on the buffer, with one end being fixedly arranged on a sheave wheel platform and the other end being fixedly arranged on a racking platform of a derrick; four vertical posts are arranged between a derrick platform and the racking platform; two guide wheels are fixedly arranged at each of the four corners of the sheave wheel platform and the racking platform; the guide wheels roll along the vertical posts so as to have a guide function; a rope race in the rope clamp is arranged in the direction along a lifting wire rope; the electric drive pusher is connected with the rope clamp to control the action of the rope clamp; the buffer is vertically and fixedly arranged at the lower layer of the support framework; two rope sheaves are fixedly arranged at the upper layer of the support framework; the lifting wire rope vertically threads through the rope races of the two rope sheaves and the rope race of the rope clamp from top to bottom; the electric drive pusher controls the rope clamp so as to retard and brake the lifting wire rope; and the auxiliary buffer rope and the buffer are used for absorbing the impact produced in the braking process.
Description
Technical field
The present invention relates to a kind of vertical single-rope hoisting speed limit falling protector, particularly a kind ofly act on hoisting cable but not the falling protector with speed limiting function of brake wire.
Background technology
The BF series falling protector device that present mine generally uses, can only when hoisting cable or connecting device fracture, the lifting container of tenesmus be supported on the check band, avoid lifting container to fall, and when the factors such as lifting container pulleying (putting), lifting winch misfunctioning of brake or misoperation cause the running velocity of lifting container to exceed the safe operation speed of setting, existing BF series falling protector will not play and slow down and anti-fall effect, thereby the safety that has had a strong impact on mine production is carried out.In real work was produced, the probability that hoist ropes break occurs was less, and the probability of hoisting cable generation hypervelocity is much bigger, and the potential safety hazard that produces therefrom is also just more.
Chinese patent CN2873719Y has proposed a kind of speed limit falling protector, see Fig. 1, when the speed that glides along guide rope when lifting container surpasses the running velocity of setting, when head pulley (1) rotating speed surpasses setting range, fee engine clutch works, cam (3) rotates extrapolation support arm (4), very heavy (5) are pulled out by support arm (4), make the drift (7) that is ready up along passive pressing body (10) inclined-plane under the promotion of Compress Spring (8), lifting container and guide rope (13) is stuck.Need lifting container up during releasing, pull down fixed handle (9), Compress Spring (8) is pressed on drift (7) top, makes very heavy (5) the inner block draw-in groove on the drift (7), recovers normal lifting state.But, reliability and the accuracy rate of the mechanical braking that this falling protector adopts are not very high, might produce mechanical breakdown, just can not be triggered or produce misoperation such as braking maneuver when having foreign material to block cam (3), the effective object of this falling protector is the same with existing BF series preventer simultaneously is brake wire, its function is the same with BF series falling protector, the purpose of invention is to substitute existing BF series falling protector rather than be used the safety factor that improves mine hoisting with BF series falling protector, this falling protector does not arrange impact mitigation measure, the inertia of lifting container can produce larger impact to hoisting cable and brake wire during braking, affects service life and the safety factor of steel rope.
Summary of the invention
The technical problem to be solved in the present invention is: for the deficiency of existing falling protector, a kind of all reliable and stable falling protectors of speed limiting function and pooling feature and cushion characteristic and deceleration and stopping performance that integrate are provided, both can when hoisting cable or connecting device fracture, in time brake lifting container, avoid lifting container to fall, can put because cross to lick again, when causing the lifting container running velocity to surpass maximum safe operation speed, the factors such as lifting winch misfunctioning of brake or misoperation brake, that hoisting cable is braked when simultaneously, this falling protector is worked.
In order to solve the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of vertical single-rope hoisting speed limit falling protector, comprise rope locking machine, energy disperser, electric pushrod, track adjusting wheel, column, support frame, rope sheave, base, auxiliary snub rope, this column vertically is fixed between sheave wheel platform and the two-layer platform, corner location stator wheel at sheave wheel platform and two-layer platform, track adjusting wheel relies on the guide pillar location during work, auxiliary snub rope is wrapped on the energy disperser, one end and the sheave wheel platform of rope are fixed, the other end is fixed on the two-layer platform, a whole set of speed limit falling protector is vertically hung, rope locking machine vertically is fixed on support frame lower floor geometric centre position, rope sheave vertically is fixed on the support frame upper strata, hoisting cable vertically passes the middle grooving of two rope sheaves and the conductor rope groove in the rope locking machine from top to bottom, electric pushrod is connected with rope locking machine, and electric pushrod is by accepting to be controlled by the automatic or manual electric signal that sends of elevator system control desk the action of rope locking machine.
Column will have two smooth planes to contact or leave small spacing with track adjusting wheel, and during this speed limit falling protector work, track adjusting wheel can be rolled flexibly along the column surface, and playing the role of positioning simultaneously guarantees that this falling protector keeps vertically along the hoisting cable direction.Auxiliary snub rope its length when the lifting container normal hoisting is state of nature, only bear the gravity of this speed limit falling protector, do not bear the pulling force of lifting container, when this falling protector is braked, stretch by the rotation of energy disperser in the auxiliary snub rope that is wrapped on the energy disperser, thus the impact that the inertia of lifting container produces when absorbing braking.
After adopting this structure, no matter be because hoisting cable or connecting device fracture, or put because cross to lick, the factors such as lifting winch misfunctioning of brake or misoperation cause the lifting container running velocity to surpass maximum safe operation speed, this falling protector can in time be braked, the impact that the inertia of lifting container produced when this falling protector can also utilize the shock absorber of self to absorb braking, when having reduced braking to the impact of hoisting cable and brake wire, effectively raise hoisting cable and brake wire life-span and safety, simultaneously, that hoisting cable is braked during this falling protector work, and existing BF series preventer is that brake wire is braked, to greatly improve reliability and the safety of mine hoisting if at the scene both are supported the use, therefore have good in-use performance and promotional value.
Description of drawings:
Fig. 1 is the structural representation of utility model among the patent CN2873719Y.
Fig. 2 is speed limit falling protector structural representation of the present invention.
The specific embodiment:
The present invention is a kind of vertical single-rope hoisting speed limit falling protector, as shown in Figure 2, speed limit falling protector of the present invention comprises rope locking machine 1, energy disperser 2, electric pushrod 3, track adjusting wheel 4, column 5, support frame 6, rope sheave 7, base 8, auxiliary snub rope 9, this column 5 vertically is fixed between sheave wheel platform and the two-layer platform, corner location stator wheel 4 at sheave wheel platform and two-layer platform, track adjusting wheel 4 relies on column 5 guide-localizations during work, auxiliary snub rope 9 is wrapped on the energy disperser 2, one end and the sheave wheel platform of rope are fixed, the other end is fixed on the two-layer platform, a whole set of speed limit falling protector is vertically hung, rope locking machine 1 vertically is fixed on support frame 6 lower floor geometric centre positions, rope sheave 7 vertically is fixed on support frame 6 upper stratas, and hoisting cable passes the grooving of two rope sheaves, 7 centres and the conductor rope groove in the rope locking machine 1 from top to bottom.Electric pushrod 3 is connected connection with rope locking machine, electric pushrod 3 is by accepting to be controlled by the automatic or manual electric signal that sends of elevator system control desk the action of rope locking machine 1.
Its principle of work is: require to preset a maximum security improvement speed according to " safety regulations in coal mine ", when the speed measuring device in the elevator system detects lifting container operation hypervelocity, can automatically issue the feedback signal of a representative hypervelocity of control center, control center can send an electric signal to electric pushrod 3 automatically or manually, electric pushrod 3 starts rope locking machine 1 action, and rope locking machine 1 is to be not more than 5m/s
2Deceleration/decel hoisting cable is braked, in braking procedure, the inertia of lifting container can produce larger impact to hoisting cable, whole speed limit falling protector also has certain vibration simultaneously, and excessive impact destroys hoisting cable easily, may make hoist ropes break when serious, may make hoisting cable break away from rope sheave 7 if whole speed limit falling protector vibrates when excessive, hoisting cable can not fully be contacted with rope locking machine 1 and reduce braking force.In this speed limit falling protector, track adjusting wheel 4 can be rolled along column 5 surfaces, thereby from four direction the speed limit falling protector is positioned guiding, avoid speed limit falling protector vibration-generating, stretch by the rotation of energy disperser 2 in the auxiliary snub rope 9 that is wrapped on the energy disperser 2, the impact that the inertia of lifting container produced when auxiliary snub rope 9 absorbed braking with energy disperser 2, consumed the kinetic energy of lifting container, impulsive force is to the destruction of hoisting cable and brake wire when having weakened greatly braking, and makes braking procedure more steady reliable.
Claims (5)
1. vertical single-rope hoisting speed limit falling protector, it is characterized in that: the speed limit falling protector comprises rope locking machine (1), energy disperser (2), electric pushrod (3), track adjusting wheel (4), column (5), support frame (6), rope sheave (7), base (8), auxiliary snub rope (9), this column (5) vertically is fixed between sheave wheel platform and the two-layer platform, corner location stator wheel (4) at sheave wheel platform and two-layer platform, auxiliary snub rope (9) is wrapped on the energy disperser (2), one end and the sheave wheel platform of rope are fixed, the other end is fixed on the two-layer platform, rope locking machine (1) vertically is fixed on support frame (6) lower floor geometric centre position, rope sheave (7) vertically is fixed on support frame (6) upper strata, and hoisting cable passes the middle grooving of two rope sheaves (7) and the conductor rope groove in the rope locking machine (1) from top to bottom.
2. vertical single-rope hoisting speed limit falling protector according to claim 1, it is characterized in that: rope locking machine (1) start and stop lever is connected with electric pushrod (3).
3. vertical single-rope hoisting speed limit falling protector according to claim 1 is characterized in that: column (5) will have two smooth planes and track adjusting wheel (4) to contact or leave spacing less than 3mm.
4. vertical single-rope hoisting speed limit falling protector according to claim 1 is characterized in that: two rope sheaves (7) are arranged point-blank, and hoisting cable passes the grooving center of upper that side that contacts with hoisting cable of rope sheave (7).
5. vertical single-rope hoisting speed limit falling protector according to claim 1, it is characterized in that: auxiliary snub rope (9) its length when the lifting container normal hoisting is state of nature, only bear the gravity of this speed limit falling protector, do not bear the pulling force of lifting container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102910417A CN102992140A (en) | 2011-09-18 | 2011-09-18 | Rate-limiting falling protector used for single rope lifting in vertical shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102910417A CN102992140A (en) | 2011-09-18 | 2011-09-18 | Rate-limiting falling protector used for single rope lifting in vertical shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102992140A true CN102992140A (en) | 2013-03-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102910417A Pending CN102992140A (en) | 2011-09-18 | 2011-09-18 | Rate-limiting falling protector used for single rope lifting in vertical shaft |
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| Country | Link |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110775793A (en) * | 2019-11-21 | 2020-02-11 | 中国矿业大学 | Split type flat tail rope swing control device and method for vertical shaft elevator |
| CN113291969A (en) * | 2021-04-15 | 2021-08-24 | 中建八局第二建设有限公司 | Portal is used in precast concrete component handling |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB894742A (en) * | 1957-05-02 | 1962-04-26 | Edoardo Giuseppe Bianca | Improvements in or relating to lifts comprising cabins suspended by cables |
| SU1234332A1 (en) * | 1984-09-28 | 1986-05-30 | Государственный Проектно-Конструкторский И Научно-Исследовательский Институт По Автоматизации Угольной Промышленности | Hoist for shaft sinking |
| CN1048013A (en) * | 1990-01-18 | 1990-12-26 | 中国矿业大学 | Gig friction braking method and device |
| CN200943009Y (en) * | 2006-08-26 | 2007-09-05 | 中国矿业大学 | Reversal-gliding preventing damping tank holding device |
| CN101327884A (en) * | 2008-07-09 | 2008-12-24 | 中煤第五建设公司 | Anti-drop bucket for shaft sinking |
| CN101875462A (en) * | 2009-11-20 | 2010-11-03 | 徐州市工大三森科技有限公司 | Cage buffer and support device with overwinding and overfalling vertical shaft hoisting rope |
-
2011
- 2011-09-18 CN CN2011102910417A patent/CN102992140A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB894742A (en) * | 1957-05-02 | 1962-04-26 | Edoardo Giuseppe Bianca | Improvements in or relating to lifts comprising cabins suspended by cables |
| SU1234332A1 (en) * | 1984-09-28 | 1986-05-30 | Государственный Проектно-Конструкторский И Научно-Исследовательский Институт По Автоматизации Угольной Промышленности | Hoist for shaft sinking |
| CN1048013A (en) * | 1990-01-18 | 1990-12-26 | 中国矿业大学 | Gig friction braking method and device |
| CN200943009Y (en) * | 2006-08-26 | 2007-09-05 | 中国矿业大学 | Reversal-gliding preventing damping tank holding device |
| CN101327884A (en) * | 2008-07-09 | 2008-12-24 | 中煤第五建设公司 | Anti-drop bucket for shaft sinking |
| CN101875462A (en) * | 2009-11-20 | 2010-11-03 | 徐州市工大三森科技有限公司 | Cage buffer and support device with overwinding and overfalling vertical shaft hoisting rope |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110775793A (en) * | 2019-11-21 | 2020-02-11 | 中国矿业大学 | Split type flat tail rope swing control device and method for vertical shaft elevator |
| CN113291969A (en) * | 2021-04-15 | 2021-08-24 | 中建八局第二建设有限公司 | Portal is used in precast concrete component handling |
| CN113291969B (en) * | 2021-04-15 | 2022-05-31 | 中建八局第二建设有限公司 | Portal is used in precast concrete component handling |
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Application publication date: 20130327 |