CN102815650B - Falling-protection device - Google Patents
Falling-protection device Download PDFInfo
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- CN102815650B CN102815650B CN201210267615.1A CN201210267615A CN102815650B CN 102815650 B CN102815650 B CN 102815650B CN 201210267615 A CN201210267615 A CN 201210267615A CN 102815650 B CN102815650 B CN 102815650B
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- ratchet
- brake axle
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- falling
- shaft
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- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention discloses a falling-protection device. The falling-protection device comprises a shell formed by the connection of a mounting plate, a ratchet housing and an end cover, wherein ratchet teeth are arranged on the inner wall of the ratchet housing, a brake shaft is arranged inside the shell, one end of the brake shaft is provided with a loading shaft, one end of the loading shaft passes outside the shell, a slot is arranged on one side of the brake shaft along the radial direction, a pawl is arranged inside the slot, an inner end of the pawl is connected with the brake shaft by an elastic component, the outer end of the pawl is hinged with the brake shaft by an eccentric shaft, a high-speed rotation of the brake shaft can drive the inner end of the pawl to swing outwards, and the brake shaft and the ratchet teeth are matched so that the loading shaft and the ratchet housing are locked. The falling-protection device is simple in structure, small in volume, light in weight, stable in running and low in failure rate. When the falling-protection device normally runs at a lifting platform, execution components do not collide, so that the losses of the components are extremely low after the components are used for a long time, not only the running load of the lifting platform is not increased, but also an effective protection action can be applied once a falling accident happens.
Description
Technical field
The present invention relates to a kind of falling proof device.
Background technology
The lifting table of tank body circular seam welding machine all needs to install anti-falling mechanism, in case lose when auto-lock function or installation shaft are broken suddenly and shield at power motor.But existing anti-falling mechanism structure is comparatively complicated, volume is larger, therefore, poor work stability, very easily damages, and is difficult to play due protective effect.And; in lifting table course of normal operation, the execution unit of existing anti-falling mechanism is collision mutually all the time, can increase on the one hand the operating load of equipment; waste energy; on the other hand, in the long normal course of operation of lifting table, the execution unit of anti-falling mechanism can be because of collision loss fast; in the time there is falling danger in lifting table; anti-falling mechanism very easily lost efficacy because of wearing and tearing at ordinary times, did not have the effect of falling guard, directly affected user's safety of life and property.
Summary of the invention
Object of the present invention, is to provide a kind of falling proof device, and it is simple in structure, small volume, weight are lighter, stable, failure rate is low.And it is in the time that lifting table normally moves, its execution unit can not bump, and parts are long-term uses rear loss minimum, neither can strengthen the operating load of lifting table, also can guarantee, once falling accident occurs, can play actv. protective effect.
The object of the invention is to be achieved through the following technical solutions: falling proof device, comprise the housing being connected and composed by adapter plate, ratchet shell and end cap, the inwall of ratchet shell is provided with hook tooth; Brake axle is installed in housing, and weight loading axis is installed in one end of brake axle, and one end of weight loading axis passes outside housing; One side of brake axle is radially offered groove, and ratchet is installed in groove, and the inner of ratchet is connected with brake axle by elastomeric element, and the outer end of ratchet is hinged by eccentric shaft and brake axle; Brake axle High Rotation Speed, can make the inner of ratchet outwards swing, and coordinates with hook tooth weight loading axis and ratchet shell locking.
For further realizing object of the present invention, can also realize by the following technical solutions: on described brake axle, offer vertically axis hole, axis hole communicates with groove, eccentric shaft and shaft hole matching.On described brake axle, offer vertically removal hole, removal hole communicates with axis hole.Jack is offered in one end of described brake axle, and jack coordinates with weight loading axis, and jack communicates with groove and makes the inner formation of brake axle boss; One end of weight loading axis is provided with drive block, and drive block coordinates with boss.On described brake axle, offer the second adjusting hole, offer and the corresponding the first access of the second adjusting hole on ratchet shell, lag screw is installed in the second adjusting hole, lag screw is threaded with brake axle, and lag screw is connected with one end of elastomeric element.On described ratchet, offer through hole, elastomeric element anchor shaft is installed in through hole, ratchet is connected with the other end of elastomeric element by elastomeric element anchor shaft.The other end of described brake axle is provided with semiaxis, and a clutch shaft bearing is installed between semiaxis and ratchet shell; The periphery of weight loading axis is installed the second bearing, and the second bearing is between brake axle and adapter plate.Described elastomeric element is extension spring.
Good effect of the present invention is: lifting table normally moves, and its rotating speed is all in setting range, now; ratchet can be concealed in completely in groove under the effect of elastomeric element; do not contact with hook tooth, under this state, no matter weight loading axis forward or reverse; the operation of lifting table is influenced hardly; and each parts of falling proof device do not have collision loss, therefore; neither can affect the normal operation of lifting table, can guarantee that again falling proof device can normally bring into play protective effect.Only have and lose auto-lock function or installation shaft is broken suddenly when power motor; while making rotating speed moment of weight loading axis exceed setting speed; the inner of ratchet can outwards swing under the effect of centnifugal force; and coordinate with hook tooth; thereby; by weight loading axis and ratchet shell locking, make lifting table stop falling, to shield.The present invention also has advantages of compactness simple for structure, cheap for manufacturing cost and working stability is high.
Accompanying drawing explanation
Fig. 1 is the structural representation of falling proof device of the present invention; Fig. 2 is the backsight structural representation of Fig. 1; Fig. 3 is that structure for amplifying schematic diagram is looked by the A-A portion of Fig. 1; Fig. 4 is the structural representation of described brake axle, and Fig. 5 is the left TV structure schematic diagram of Fig. 4; Fig. 6 is the perspective view of Fig. 4; Fig. 7 is the backsight structural representation of Fig. 4; Fig. 8 is the B-B sectional structure schematic diagram of Fig. 5; Fig. 9 is the C-C sectional structure schematic diagram of Fig. 5; Figure 10 is the structural representation after described falling proof device is connected with transmission device; Figure 11 is the structural representation that Figure 10 omits ratchet shell and adapter plate; Figure 12 is the structural representation that Figure 11 omits brake axle.
Reference numeral: 1 heavy burden chain 2 heavy burden sprocket wheel 3 adapter plate 4 ratchet shell 5 end cap 6 weight loading axis 7 brake axle 8 clutch shaft bearing 9 lag screw 10 elastomeric element 11 ratchet 12 eccentric shaft 13 elastomeric element anchor shaft 14 hook tooth 15 power motor 16 drive sprocket 17 attaching parts 18 through hole 19 groove 20 the first access 21 second adjusting hole 22 second bearing 71 semiaxis 72 axis hole 73 removal hole 74 jack 75 boss 161 drive blocks.
The specific embodiment
Falling proof device of the present invention, comprises the housing being connected and composed by adapter plate 3, ratchet shell 4 and end cap 5.Adapter plate 3, ratchet shell 4 and end cap 5 can be made into one.But in order to overhaul conveniently, adapter plate 3, ratchet shell 4 and end cap 5 also can separate independent processing and fabricating, assemble afterwards again.Conventionally, adapter plate 3 can be also to be substituted by a part of body of equipment, to falling proof device and equipment connection are fixed.As shown in Figure 3, the inwall of ratchet shell 4 is provided with hook tooth 14.Brake axle 7 is installed in housing, and weight loading axis 6 is installed in one end of brake axle 7, and one end of weight loading axis 6 passes outside housing, to be connected with the heavy burden sprocket wheel 2 of lifting table.As shown in Fig. 4 to Fig. 9, a side of brake axle 7 is radially offered groove 19.As shown in Figure 3, the interior installation ratchet 11 of groove 19.The inner of ratchet 11 is connected with brake axle 7 by elastomeric element 10.The outer end of ratchet 11 is hinged by eccentric shaft 12 and brake axle 7.In the time of brake axle 7 High Rotation Speed, under the effect of centnifugal force, the inner of ratchet 11 outwards swings, and coordinates with hook tooth 14 weight loading axis 6 and ratchet shell 4 are locked.Hook tooth 14 and ratchet 11 form handle ratchet wheel mechanism.
As shown in Figure 3, ratchet 11 is concealed in groove 19 under the constraint of elastomeric element 10 conventionally.After power motor 15 loses auto-lock function or installation shaft and breaks suddenly, attaching parts 17 can sharply fall because losing stationary power, the chain 1 that makes to bear a heavy burden can drive heavy burden sprocket wheel 2, brake axle 7 fast rotational, thereby, ratchet 11 moment under the effect of inertia rotates around eccentric shaft 12, makes the inner of ratchet 11 block hook tooth 14; Because hook tooth hook tooth 14 and ratchet shell 4 are one, therefore, when ratchet 11 stops operating, can brake axle 7, weight loading axis 6, heavy burden sprocket wheel 2 be stopped the rotation by eccentric shaft 12, finally, heavy burden chain 1 can make lifting table rest on suspension status by attaching parts 17, is unlikely to because sharply falling to breaking.
For convenience of by hinged to ratchet 11 and brake axle 7, as shown in Figure 6 and Figure 8, on described brake axle 7, offer vertically axis hole 72, axis hole 72 communicates with groove 19.Eccentric shaft 12 coordinates with axis hole 72, and can rotate relative to axis hole 72.
Change for convenience ratchet 11, as shown in Figure 8, on described brake axle 7, offer vertically removal hole 73, removal hole 73 communicates with axis hole 72.With elongated hard thing insertion removal hole 73, eccentric shaft 12 outwards can be ejected.
Be connected with weight loading axis 6 for convenience of brake axle 7, as shown in Figure 8 and Figure 9, jack 74 is offered in one end of described brake axle 7, and jack 74 coordinates with weight loading axis 6.Jack 74 communicates with groove 19 and makes the inner formation boss 75 of brake axle 7.As shown in Figure 3, one end of weight loading axis 6 is provided with drive block 161.Drive block 161 coordinates with boss 75, makes weight loading axis 6 can synchronize and rotate with brake axle 7.This coordinated scheme, both can guarantee the synchronism that weight loading axis 6 and brake axle 7 rotate, and had reduced again the difficulty of job, thereby had reduced costs.
For convenience of elastomeric element 10 is fixedly connected with brake axle 7, as shown in Fig. 3, Fig. 4 and Fig. 9, on described brake axle 7, offer the second adjusting hole 21.As shown in Figure 3, on ratchet shell 4, offer and the corresponding the first access 20 of the second adjusting hole 21.The interior installation lag screw 9 of the second adjusting hole 21, lag screw 9 is threaded with brake axle 7, and lag screw 9 is connected with one end of elastomeric element 10.Also can perforate on lag screw 9, so that one end of elastomeric element 10 and lag screw 9 are mounted on one.Instrument can be adjusted to the position of lag screw 9 and brake axle 7 through the first access 20 and the second adjusting hole 21, thereby be adjusted the pulling force of elastomeric element 10.
For convenience of elastomeric element 10 is connected with the inner of ratchet 11, as shown in Figure 3, on described ratchet 11, offer through hole 18, the interior installation elastomeric element of through hole 18 anchor shaft 13, ratchet 11 is connected with the other end of elastomeric element 10 by elastomeric element anchor shaft 13.
The friction force rotating relative to ratchet shell 4 for reducing brake axle 7, as shown in Figure 1, the other end of described brake axle 7 is provided with semiaxis 71.As shown in Figure 1, a clutch shaft bearing 8 is installed between semiaxis 71 and ratchet shell 4.The periphery of weight loading axis 6 is installed the second bearing 22, the second bearings 22 between brake axle 7 and adapter plate 3.
As shown in Figure 3, described elastomeric element 10 can be extension spring, can be also other existing parts that predetermincd tension can be provided for ratchet 11.
Described falling proof device is also applicable to other equipment, in case weight falls suddenly while having an accident.
Technical solutions according to the invention are not restricted in the scope of embodiment of the present invention.The present invention not technology contents of detailed description is known technology.
Claims (6)
1. falling proof device, is characterized in that: comprise the housing being connected and composed by adapter plate (3), ratchet shell (4) and end cap (5), the inwall of ratchet shell (4) is provided with hook tooth (14); Brake axle (7) is installed in housing, and weight loading axis (6) is installed in one end of brake axle (7), and one end of weight loading axis (6) passes outside housing; One side of brake axle (7) is radially offered groove (19), ratchet (11) is installed in groove (19), the inner of ratchet (11) is connected with brake axle (7) by elastomeric element (10), and the outer end of ratchet (11) is hinged by eccentric shaft (12) and brake axle (7); Brake axle (7) High Rotation Speed, can make the inner of ratchet (11) outwards swing, and coordinates with hook tooth (14) weight loading axis (6) and ratchet shell (4) locking; Jack (74) is offered in one end of described brake axle (7), and jack (74) coordinates with weight loading axis (6), and jack (74) communicates with groove (19) and makes brake axle (7) inner formation boss (75); One end of weight loading axis (6) is provided with drive block (161), and drive block (161) coordinates with boss (75); On described brake axle (7), offer the second adjusting hole (21), on ratchet shell (4), offer and the corresponding the first access (20) of the second adjusting hole (21), lag screw (9) is installed in the second adjusting hole (21), lag screw (9) is threaded with brake axle (7), and lag screw (9) is connected with one end of elastomeric element (10).
2. falling proof device according to claim 1, is characterized in that: on described brake axle (7), offer vertically axis hole (72), axis hole (72) communicates with groove (19), and eccentric shaft (12) coordinates with axis hole (72).
3. falling proof device according to claim 1, is characterized in that: on described brake axle (7), offer vertically removal hole (73), removal hole (73) communicates with axis hole (72).
4. falling proof device according to claim 1, it is characterized in that: on described ratchet (11), offer through hole (18), elastomeric element anchor shaft (13) is installed in through hole (18), and ratchet (11) is connected with the other end of elastomeric element (10) by elastomeric element anchor shaft (13).
5. falling proof device according to claim 4, is characterized in that: the other end of described brake axle (7) is provided with semiaxis (71), between semiaxis (71) and ratchet shell (4), a clutch shaft bearing (8) is installed; The periphery of weight loading axis (6) is installed the second bearing (22), and the second bearing (22) is positioned between brake axle (7) and adapter plate (3).
6. falling proof device according to claim 1, is characterized in that: described elastomeric element (10) is extension spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210267615.1A CN102815650B (en) | 2012-07-31 | 2012-07-31 | Falling-protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210267615.1A CN102815650B (en) | 2012-07-31 | 2012-07-31 | Falling-protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102815650A CN102815650A (en) | 2012-12-12 |
| CN102815650B true CN102815650B (en) | 2014-07-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210267615.1A Active CN102815650B (en) | 2012-07-31 | 2012-07-31 | Falling-protection device |
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| CN (1) | CN102815650B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104444926A (en) * | 2014-12-06 | 2015-03-25 | 吉林赛金得智能机械制造有限公司 | Non-interference multipoint synchronization lifter |
| CN107459003A (en) * | 2017-09-06 | 2017-12-12 | 天津传世科技有限公司 | A kind of servo new system anti-drop device |
| CN108002319A (en) * | 2017-12-29 | 2018-05-08 | 青岛中海德自动化设备有限公司 | A kind of falling-proof safety device |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5950784A (en) * | 1997-09-03 | 1999-09-14 | Yang; Shu-Chiung C. | Hub structural improvement |
| CN201762073U (en) * | 2010-08-31 | 2011-03-16 | 李建成 | Self-locking device of spring balancer |
| CN101947363B (en) * | 2010-09-29 | 2012-02-22 | 北京工商大学 | A high-rise escape and transportation device |
| CN202717563U (en) * | 2012-07-31 | 2013-02-06 | 山东水泊焊割设备制造有限公司 | Anti-falling device |
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| CN102815650A (en) | 2012-12-12 |
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| Date | Code | Title | Description |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Cui Pengcheng Inventor before: Liu Xianfu |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180408 Address after: 272613 Cui Zhuang village, Han Gang Town, Liangshan County, Shandong Province, No. 022 Patentee after: Cui Pengcheng Address before: 272613, Shandong, Liangshan province Jining Town Industrial Zone boxing Patentee before: Shandong Shuibo Welding Cutting Equipment Manufacturing Co.,Ltd. |