CN101554968B - Traction-type construction lifting machine and gradual anti-falling safety device thereof - Google Patents
Traction-type construction lifting machine and gradual anti-falling safety device thereof Download PDFInfo
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- CN101554968B CN101554968B CN 200910064901 CN200910064901A CN101554968B CN 101554968 B CN101554968 B CN 101554968B CN 200910064901 CN200910064901 CN 200910064901 CN 200910064901 A CN200910064901 A CN 200910064901A CN 101554968 B CN101554968 B CN 101554968B
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- guide rod
- spring
- friction plate
- safety device
- falling safety
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Abstract
The invention discloses a gradual anti-falling safety device, comprising an automatic rail-grabbing device; the automatic rail-grabbing device is vertically fixed with a guide rod; the guide rod is sheathed with a spring clamping device which is used for connecting a hoisting cage of the lifting machine; the spring clamping device comprises a spring base which is sheathed on the guide rod; the spring base is internally provided with a friction plate which pushes against the guide rod closely by an elastic part; the matching surface between the friction plate and the guide rod is an inclined surface which is arranged on the guide rod, extends along the axial direction of the guide rod and is far away from the axis center of the guide rod gradually; by adopting the structure, the gradual anti-falling safety device has simple structure; after the automatic rail-grabbing device locks the track and the hoisting cage slides downwards for a certain distance along the guide rod by the spring base fixedly connected with the hoisting cage, the hoisting cage stops under the clamping match between the spring base and the guide rod, thus cushioning the persons and goods in the hoisting cage andeasily realizing the gradual stopping of the hoisting cage.
Description
Technical field
The present invention relates to the traction-type construction lifting machine that use a kind of building ground.
Background technology
At present, the cage of the traction-type construction lifting machine that people's goods that use domestic each building ground is dual-purpose all adopts the anti-dropping safety device of instantaneous braking, the anti-dropping safety device of this instantaneous braking comprises instantaneous automatic track-catching device, and the cage of elevator is fixedly connected on this instantaneous automatically grabbing on the rail device.
The patent No. of on August 15th, 2007 bulletin is that 200620104058.1 Chinese invention patent specification sheets discloses a kind of falling protector, this falling protector comprises falling protector master basket and the roller that is fixed on this main basket, also be close to track and be provided with fixture block on falling protector master basket, fixture block is outside equipped with tapered wedges, be connected with shift fork under fixture block, shift fork is connected with tractive magnet.During braking, the end that electromagnet promotes shift fork moves downward, and the other end of shift fork upwarps and promotes the fixture block grip track.But the falling protector stopping distance of this instantaneous braking is short, the impulsive force that produces during braking is larger, when being mounted with weight especially in cage, because its gravity strengthens, the acceleration due to gravity that produces when steel rope ruptures suddenly increases thereupon, the impulsive force that cage produces when instantaneous braking is greater than the holding capacity of human body, the health of driver and conductor in cage is very easy to because can't stand that the impulsive force that instantaneous braking produces causes somatic damage, simultaneously, excessive impulsive force also easily damages elevator craning cage and track, and the suitable elevator that makes causes secondary to damage.
Summary of the invention
The objective of the invention is for defects, a kind of traction-type construction lifting machine and gradual anti-falling device thereof that can slow down the braking impulsive force, protect human body to preserve from is provided.
technical scheme of the present invention is: a kind of gradual anti-falling safety device, what comprise instantaneous braking grabs the rail device automatically, this is automatically grabbed and vertically is fixed with a guide rod on the rail device, be set with on this guide rod for the fixture of the spring that connects elevator craning cage, this fixture of the spring comprises the spring perch that is set on guide rod, be provided with the friction plate that can move radially in this spring perch, friction plate is pressed on guide rod near the top by the elastic component of expandable, the frictional fit face of described guide rod and friction plate corresponding matching for arrange on guide rod vertically to downward-extension and gradually away from inclined-plane or the conical surface in guide rod axle center.
Described guide rod is big top and small bottom taper or wedge structure on the whole.
Also be provided with a pressure-adjustable plate in described spring perch, described elastic component pushes up and is contained between this pressure-adjustable plate and friction plate.
Described elastic component is disc spring film.
Bottom at described guide rod radially is equipped with anti-fall safety plug.
The described rail device of automatically grabbing comprises main frame, on main frame, symmetry is installed with the wedge seat, on the wedge seat, slidable fit is useful on the fixture block of grip track, be connected with on fixture block be used to the shift fork of stirring fixture block, also slidable fit has one to promote the action axle that shift fork moves on described main frame, and described guide rod vertically is fixed on this action axle.
the present invention also provides a kind of traction-type construction lifting machine, comprise crane, by guide rails assembling, the dual-purpose cage of people's goods is arranged on crane, be provided with anti-falling safety device between crane and cage, what described anti-falling safety device comprised instantaneous braking grabs the rail device automatically, this is automatically grabbed and vertically is fixed with a guide rod on the rail device, be set with on this guide rod for the fixture of the spring that connects elevator craning cage, this fixture of the spring comprises the spring perch that is set on guide rod, be provided with the friction plate that can move radially in this spring perch, friction plate is pressed on guide rod near the top by the elastic component of expandable, the frictional fit face of described guide rod and friction plate corresponding matching for arrange on guide rod vertically to downward-extension and gradually away from inclined-plane or the conical surface in guide rod axle center.
Described guide rod is big top and small bottom taper or wedge structure on the whole, radially is equipped with anti-fall safety plug in the bottom of described guide rod.
Described elastic component is disc spring film, described fixture of the spring comprises the spring perch that is set on taper guide bar, be provided with pressure-adjustable plate and friction plate in this spring perch, described pressure-adjustable plate is connected on spring perch by adjusting bolt, and described disc spring film pushes up to press-fit to fit between pressure-adjustable plate and friction plate and friction plate is pushed up and is pressed on the taper guide bar outside face.
The described rail device of automatically grabbing comprises main frame, on main frame, symmetry is installed with the wedge seat, on the wedge seat, slidable fit is useful on the fixture block of grip track, be connected with on fixture block be used to the shift fork of stirring fixture block, also slidable fit has one to promote the action axle that shift fork moves on described main frame, and described guide rod vertically is fixed on this action axle.
Adopt said structure, it is simple in structure for gradual anti-falling safety device of the present invention, it is after automatically grabbing rail device locking track, cage continues after one section of guide rod downslide by the spring perch that is connected with it, stop under the clamping engagement between spring perch and guide rod, people in cage and cage or goods are cushioned, realize that easily the gradual of cage stops; When the safety plug that wears at the end of guide rod can prevent that the gripping power of spring perch from reducing, be unlikely to deviate from guide rod, prevent that cage from falling; This gradual anti-falling safety device actv. slows down cage when stopping to the impact of human body and equipment, avoids the person and equipment to be subject to the injury of impulsive force.
Description of drawings
Fig. 1 is the structural representation of traction-type construction lifting machine in the present invention;
Fig. 2 is the structural representation of gradual anti-falling safety device in the present invention;
Fig. 3 grabs the K of rail device automatically to view in Fig. 2;
Fig. 4 is the left view of Fig. 2.
The specific embodiment
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, slidable fit has the dual-purpose cage 6 of people's goods on the track 4 of traction-type construction lifting machine, also be provided with gradual anti-falling safety device 1 and velocity limiter 2 between cage and track 4, be connected with kinematic link 3 between gradual anti-falling safety device 1 and velocity limiter 2.gradual anti-falling safety device 1 comprises grabs the rail device automatically, this is automatically grabbed the rail device and comprises main frame 11, one side of main frame 11 is provided with four rollers that coordinate with track 101 and two symmetrical wedge seats 12, on two wedge seats 12 respectively slidable fit be useful on the fixture block 102 of grip track, on the main frame of the bottom of two fixture blocks 102 respectively correspondence be rotatably equipped with shift fork 103, be connected with interlock bolt 105 between two shift forks 103, also slidable fit has one can promote the action axle 13 that shift fork rotates on main frame 11, vertically be fixed with a taper or wedge shape guide rod 15 on this action axle 13, be set with a spring perch 16 on guide rod 15, be fixed with regulating plate 17 by adjusting bolt on spring perch 16, regulating plate 17 pushes up to press-fit by belleville spring 18 is furnished with friction plate 20, this friction plate 20 only depends on the top to be pressed on guide rod 15, end at guide rod 15 also is equipped with anti-fall safety plug 19, the cage 6 of building hoist is fixedly connected on spring perch 16.
in building hoist work, when if the steel rope of towing suspension cage disconnects suddenly, cage 6 drives action axle 13 by the friction force between spring perch 16 and guide rod 15 and glides, action axle 13 is depressed an end of shift fork 103, make the other end perk of shift fork 103 fixture block 102 be promoted upper sliding, grip track, after automatic rail clamping device grip track, cage 6 is with flexible spring seat 16 to continue to glide along guide rod 15 under Action of Gravity Field, because guide rod is up-small and down-big taper or wedge shape, friction force between spring perch 16 and guide rod 15 is increasing, last spring perch 16 clamps guide rod and stops sliding, cage stops gliding simultaneously.Anti-fall safety plug 19 can open last safety effect, blocks spring perch 16 downslides and deviates from guide rod 15.
Gradual anti-falling safety device of the present invention is applicable to traction-type construction lifting machine, and it is domestic initiation, and every safety performance meets or exceeds up-to-date national safety standard, is suitable for comprehensively applying.
Claims (9)
1. gradual anti-falling safety device, it is characterized in that, what comprise instantaneous braking grabs the rail device automatically, this is automatically grabbed and vertically is fixed with a guide rod on the rail device, described guide rod is big top and small bottom taper or wedge structure, be set with on this guide rod for the fixture of the spring that connects elevator craning cage, this fixture of the spring comprises the spring perch that is set on guide rod, be provided with the friction plate that can move radially along guide rod in this spring perch, friction plate is by being pressed on guide rod near the top along the elastic component of guide rod radial expansion, inclined-plane or the conical surface to downward-extension of the frictional fit face of described guide rod and friction plate corresponding matching for arranging on guide rod.
2. gradual anti-falling safety device according to claim 1, is characterized in that, also is provided with a pressure-adjustable plate in described spring perch, and described elastic component pushes up and is contained between this pressure-adjustable plate and friction plate.
3. gradual anti-falling safety device according to claim 2, is characterized in that, described elastic component is disc spring film.
4. gradual anti-falling safety device according to claim 1, is characterized in that, radially is equipped with anti-fall safety plug in the bottom of described guide rod along guide rod.
5. gradual anti-falling safety device according to claim 1, it is characterized in that, the described rail device of automatically grabbing comprises main frame, on main frame, symmetry is installed with the wedge seat, on the wedge seat, slidable fit is useful on the fixture block of grip track, be connected with on fixture block be used to the shift fork of stirring fixture block, also slidable fit has one to promote the action axle that shift fork moves on described main frame, and described guide rod vertically is fixed on this action axle.
6. traction-type construction lifting machine, comprise crane, by guide rails assembling, the dual-purpose cage of people's goods is arranged on crane, be provided with anti-falling safety device between crane and cage, it is characterized in that, what described anti-falling safety device comprised instantaneous braking grabs the rail device automatically, this is automatically grabbed and vertically is fixed with a guide rod on the rail device, described guide rod is big top and small bottom taper or wedge structure, be set with on this guide rod for the fixture of the spring that connects elevator craning cage, this fixture of the spring comprises the spring perch that is set on guide rod, be provided with the friction plate that can move radially along guide rod in this spring perch, friction plate is by being pressed on guide rod near the top along the elastic component of guide rod radial expansion, inclined-plane or the conical surface to downward-extension of the frictional fit face of described guide rod and friction plate corresponding matching for arranging on guide rod.
7. traction-type construction lifting machine according to claim 6, is characterized in that, radially is equipped with anti-fall safety plug in the bottom of described guide rod along guide rod.
8. traction-type construction lifting machine according to claim 7, it is characterized in that, described elastic component is disc spring film, described fixture of the spring comprises the spring perch that is set on taper guide bar, be provided with pressure-adjustable plate and friction plate in this spring perch, described pressure-adjustable plate is connected on spring perch by adjusting bolt, and described disc spring film pushes up to press-fit to fit between pressure-adjustable plate and friction plate and friction plate is pushed up and is pressed on the taper guide bar outside face.
9. traction-type construction lifting machine according to claim 8, it is characterized in that, the described rail device of automatically grabbing comprises main frame, on main frame, symmetry is installed with the wedge seat, on the wedge seat, slidable fit is useful on the fixture block of grip track, be connected with on fixture block be used to the shift fork of stirring fixture block, also slidable fit has one to promote the action axle that shift fork moves on described main frame, and described taper guide bar vertically is fixed on this action axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910064901 CN101554968B (en) | 2009-05-14 | 2009-05-14 | Traction-type construction lifting machine and gradual anti-falling safety device thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910064901 CN101554968B (en) | 2009-05-14 | 2009-05-14 | Traction-type construction lifting machine and gradual anti-falling safety device thereof |
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| CN101554968A CN101554968A (en) | 2009-10-14 |
| CN101554968B true CN101554968B (en) | 2013-05-22 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103723595A (en) * | 2013-12-26 | 2014-04-16 | 李延海 | Cage falling preventing device of steel wire rope type lift |
| CN104071672A (en) * | 2014-06-20 | 2014-10-01 | 长沙环康环保科技有限公司 | Elevator emergency inductive speed-limiting device |
| CN104150312B (en) * | 2014-07-23 | 2016-06-01 | 河北东方富达机械有限公司 | Accidental movement of elevator cage safeguard protection device |
| EP3564172B1 (en) * | 2018-04-30 | 2023-11-22 | Otis Elevator Company | Elevator safety gear actuation device |
| CN112727058B (en) * | 2020-12-29 | 2021-09-07 | 广州达蒙安防科技有限公司 | Guide rail clamp anti-falling device |
| CN116084711B (en) * | 2023-03-03 | 2023-06-20 | 山西大学 | Building construction material lifting platform convenient to install and fix |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2067693U (en) * | 1990-02-12 | 1990-12-19 | 陈道银 | Falling protector |
| JP3003875B2 (en) * | 1991-01-28 | 2000-01-31 | 松下電工株式会社 | Photosensor manufacturing method |
| JP4164792B2 (en) * | 2001-07-20 | 2008-10-15 | ヴアブコ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Lock prevention system |
| CN201494981U (en) * | 2009-05-14 | 2010-06-02 | 郑州市鑫宇机械制造有限公司 | Traction type construction elevator and gradual anti-falling safety device thereof |
-
2009
- 2009-05-14 CN CN 200910064901 patent/CN101554968B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2067693U (en) * | 1990-02-12 | 1990-12-19 | 陈道银 | Falling protector |
| JP3003875B2 (en) * | 1991-01-28 | 2000-01-31 | 松下電工株式会社 | Photosensor manufacturing method |
| JP4164792B2 (en) * | 2001-07-20 | 2008-10-15 | ヴアブコ・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング | Lock prevention system |
| CN201494981U (en) * | 2009-05-14 | 2010-06-02 | 郑州市鑫宇机械制造有限公司 | Traction type construction elevator and gradual anti-falling safety device thereof |
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| CN101554968A (en) | 2009-10-14 |
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