CN110615380B - Stacker objective table overspeed protection device - Google Patents
Stacker objective table overspeed protection device Download PDFInfo
- Publication number
- CN110615380B CN110615380B CN201910963342.6A CN201910963342A CN110615380B CN 110615380 B CN110615380 B CN 110615380B CN 201910963342 A CN201910963342 A CN 201910963342A CN 110615380 B CN110615380 B CN 110615380B
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- traction
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- rope
- safety
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- 230000036632 reaction speed Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F17/00—Safety devices, e.g. for limiting or indicating lifting force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
- B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Transportation (AREA)
- Warehouses Or Storage Devices (AREA)
Abstract
The stacker stage overspeed protection device is arranged on a stacker stage, the stacker stage can move up and down along a guide rail preset on a stacker upright post under the traction of a traction rope, the stacker stage overspeed protection device consists of a safety tongs and a safety tongs triggering mechanism, the safety tongs triggering mechanism comprises a pulley traction part and a lever triggering part, and the pulley traction part is movably connected with the lever triggering part; the pulley guiding part is connected with the traction rope, the lever triggering part is connected with the safety rope, the safety rope is connected with the speed limiter of the objective table, the pulley traction part is provided with the spring mechanism, and the traction force of the traction rope and the elasticity of the spring mechanism are balanced with the tension of the safety rope conducted by the lever triggering part. By the mode, the automatic speed limiting adjustment device can realize instant reaction when the traction rope breaks and automatic speed limiting adjustment when the traction rope exceeds the speed, and is high in reaction speed and reliability.
Description
Technical Field
The invention relates to the field of storage automation, in particular to an overspeed protection device for a stacker objective table.
Background
Because the working efficiency and the automation technology level of the automatic stereoscopic warehouse can greatly improve the logistics efficiency of enterprises, the basic technology of the stereoscopic warehouse is also mature increasingly, and more enterprises begin to adopt the automatic stereoscopic warehouse. Many enterprises not only build medium-and-large-sized stereoscopic libraries, but also build many medium-and-small-sized automatic stereoscopic libraries according to the needs, and along with the increase of the automatic stereoscopic libraries, the stacker is also increasingly widely applied. The stacker is in the during operation and realizes the transfer to the high-rise goods in the three-dimensional storehouse through the objective table that controls on the stacker reciprocates along the stand of stacker, because the objective table needs to reciprocate often, can sometimes lead to the objective table to be out of control because of the goods is overweight or equipment trouble, the objective table falling speed is too fast can produce great potential safety hazard when out of control, to this problem, some overspeed protection device has been on the market at present, but current overspeed protection device often react inadequately to the overspeed falling phenomenon of this kind of short distance, often the objective table has fallen to overground overspeed protection device and has not started in time yet.
Disclosure of Invention
The invention mainly solves the technical problem of providing an objective table overspeed protection device which can effectively reduce potential safety hazards during operation of the objective table.
In order to solve the technical problems, the invention adopts a technical scheme that: the stacker carrier overspeed protection device is arranged on a stacker carrier, the stacker carrier can move up and down along a preset guide rail on an upright post under the traction of a traction rope, the stacker carrier protection device consists of a safety tongs 1 and a safety tongs triggering mechanism, the safety tongs triggering mechanism consists of a pulley traction part and a lever triggering part, and the pulley traction part is movably connected with the lever triggering part; the pulley traction part consists of a traction pulley, a pulley mounting plate, a pulley fixing plate, a bolt and a push rod, wherein the pulley mounting plate is fixed on the objective table through the bolt, the pulley fixing plate is mounted on the traction pulley, a traction rope of the objective table passes through the traction pulley, the pulley fixing plate is connected with the push rod through a plurality of bolts with the same specification, the pulley mounting plate is provided with corresponding smooth through holes for the screw rods of the bolt to pass through, and a spring structure is arranged on the screw rods between the push rod and the pulley mounting plate; the lever triggering part consists of a triggering lever and a safety rope, the safety rope is connected with the objective table speed limiter, the triggering lever comprises a lever center shaft, a lever long arm and a lever short arm, the lever center shaft is movably connected with the push rod through the lever long arm, the lever short arm is connected with the safety rope and the lever center shaft, and the lever center shaft is fixed on the objective table; the safety tongs are fixed on the objective table, the clamping parts of the safety tongs are attached to the guide rails of the upright posts, and the switch positions of the safety tongs are arranged on the paths of the long arms of the levers rotating around the central axes of the levers.
In a preferred embodiment of the invention, the pulley mounting plate is provided with a U-shaped groove into which the axle of the traction pulley extends.
In a preferred embodiment of the invention, when the axle of the traction sheave reaches the bottom of the U-shaped groove, there is still a gap between the bottom of the sheave fixing plate and the bottom of the sheave mounting plate.
In a preferred embodiment of the present invention, the diameter of the smooth through hole is 1.1 to 1.3 times the diameter of the screw.
In a preferred embodiment of the present invention, a plurality of traction return springs are also mounted between the pushrod and the pulley mounting plate.
In a preferred embodiment of the invention, the traction return springs are symmetrically mounted.
In a preferred embodiment of the invention, the total strength of the traction return spring is not more than 1/5 of the total spring strength of the spring structure on the screw.
In a preferred embodiment of the invention, a safety rope tensioning sleeve is arranged at the position where the short arm of the lever is connected with the safety rope.
In a preferred embodiment of the invention, the length ratio between the short arm of the lever and the trigger lever is 1:4-10.
In a preferred embodiment of the invention, the safety tongs are symmetrically arranged at two sides of the stacker stage.
The beneficial effects of the invention are as follows: according to the technical scheme, the traction buffer device is arranged between the objective table and the traction rope, the braking travel during overspeed is amplified by utilizing the lever principle while the spring compression structure in the buffer device balances the traction force of the traction rope and the tension of the safety rope, the instant reaction during breakage of the traction rope and the automatic speed limiting adjustment during overspeed are realized, the whole technical scheme has high reaction speed and high reliability in actual operation, and the risk during out-of-control of the objective table at a short distance can be effectively reduced.
Drawings
FIG. 1 is a schematic front view of a preferred embodiment of the present invention;
the components in the drawings are marked as follows:
1. safety tongs, 2 pulley mounting plates, 3 bolts, 4 traction ropes, 5 safety ropes, 6 tensioning sleeves, 7 lever center shafts, 8 lever long arms, 9 lever short arms, 10 return springs, 11 push rods, 12 pulley fixing plates, 13 pulleys, 14 objective tables and 15 stand columns.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making clear and defining the scope of the present invention.
Referring to fig. 1, an embodiment of the present invention includes:
the stacker stage overspeed protection device is arranged on a stacker stage 14, the stacker stage 14 can move up and down along a preset guide rail on a stacker upright 15 under the traction of a traction rope 4, the stacker stage overspeed protection device consists of a safety tongs 1 and a safety tongs triggering mechanism, the safety tongs triggering mechanism consists of a pulley traction part and a lever triggering part, and the pulley traction part is movably connected with the lever triggering part; the pulley traction part consists of a traction pulley 13, a pulley mounting plate 2, a pulley fixing plate 12, bolts 3 and a push rod 11, wherein the pulley mounting plate 2 is fixed on an objective table 14 through bolts, the pulley fixing plate 12 is mounted on the traction pulley 13, a traction rope 4 of the objective table 14 passes through the traction pulley 13, the pulley fixing plate 12 is connected with the push rod 11 through a plurality of bolts 3 with the same specification, corresponding smooth through holes are formed in the pulley mounting plate 2 for the screw rods of the bolts 3 to pass through, and a high-strength spring structure is arranged on the screw rods between the push rod 11 and the pulley mounting plate 2; the lever triggering part consists of a triggering lever and a safety rope 5, the safety rope 5 is connected with the objective table speed limiter, the triggering lever comprises a lever center shaft 7, a lever long arm 8 and a lever short arm 9, the lever center shaft 7 is movably connected with a push rod 11 through the lever long arm 8, the lever short arm 9 is connected with the safety rope 5 and the lever center shaft 7, and the lever center shaft 7 is fixed on the objective table 14; the safety tongs 1 are shared and are fixed on two sides of the objective table 14, the safety tongs can act simultaneously after triggering, uneven stress and damage to the structure of the objective table 14 are prevented, the clamping parts of the safety tongs 1 are attached to preset guide tracks on the upright posts 15, the switch positions of the safety tongs 1 are arranged on paths of the long lever arms 8 rotating around the central lever shaft 7, and when the push rod 11 pushes forwards or the safety rope 5 pulls the short lever arms 9, the rod bodies of the long lever arms 8 can trigger the switch of the safety tongs 1.
The pulley mounting plate 2 is provided with a U-shaped groove, the axle of the traction pulley 13 extends into the U-shaped groove, and the U-shaped groove can standardize the moving track of the traction pulley 13 and prevent the traction pulley 13 from shaking left and right.
When the axle of the traction pulley 13 reaches the bottom of the U-shaped groove, a gap is still reserved between the bottom of the pulley fixing plate 12 and the bottom of the pulley mounting plate 2, so that the pulley fixing plate 12 can be prevented from being directly impacted with the pulley mounting plate 2 in the rapid falling process due to the reset of the compressed spring structure of the bolt 3 when the traction rope 4 breaks.
The diameter of the smooth through hole is 1.1-1.3 times of the diameter of the screw, and the reason that the diameter of the smooth through hole is larger than the diameter of the screw is that the push rod 11 at the top of the bolt 3 makes arc movement on the long arm 8 of the lever in the process of pushing the long arm of the lever, and if the through hole is too tightly matched with the screw, the push rod 11 is easy to be blocked, so that the aim of triggering the safety tongs 1 cannot be achieved.
And 2 traction return springs 10 are further arranged between the push rod 11 and the pulley mounting plate 2, the traction return springs 10 are symmetrically arranged on the outer side of the bolt 3, and the total strength of the traction return springs 10 is not more than 1/5 of the total strength of the springs of the spring structure on the screw rod. The traction return spring 10 has the function of driving the push rod 11 to restore to the original state after the overspeed problem of the objective table 14 is solved, so that the total strength of the traction return spring 10 cannot be too high or too low.
The short lever arm 9 is connected with the safety rope 5, and is provided with a safety rope tensioning sleeve 6, so that the tension of the safety rope 5 can be adjusted to a design state by rotating the safety rope tensioning sleeve 6 in the equipment installation process.
The length ratio between the short lever arm 9 and the long lever arm 8 is 1:4-10, so that the lifting stroke of the safety rope 5 can be effectively enlarged, and the response sensitivity of the protection device is improved.
The operation principle of the invention is as follows:
in the process that the traction rope 4 pulls the bolt 3 through the traction pulley 13 to drive the stacker stage 14 to move, traction force acts on the pulley mounting plate 2 fixed on the stage 14 through the bolt 3, a spring on the bolt 3 is stressed and compressed, meanwhile, a fixed push rod 11 at the top end of the bolt 3 is connected with the long lever arm 8, and the short lever arm 9 is connected with the pre-tensioned speed limiting safety rope 5. When the object stage 14 normally operates, the elasticity of the spring balances the traction force of the traction rope 4 and the tension force of the safety rope 5, and when the traction rope 4 is accidentally broken, the traction force on the traction rope 4 disappears, the spring on the bolt 3 is reset, the whole bolt is driven to push the push rod 11 downwards, the push rod 11 pushes the long lever arm 8 to trigger the safety tongs 1, when only overspeed occurs, the speed limiter clamps the safety rope 5, the tension force of the safety rope 5 is increased, the short lever arm 9 is pulled, the long lever arm 8 is driven to rotate, and the switch of the safety tongs 1 is triggered.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related technical fields are included in the scope of the present invention.
Claims (8)
1. The stacker stage overspeed protection device is arranged on a stacker stage and can move up and down along a guide rail preset on a stacker upright post under the traction of a traction rope, and is characterized by comprising safety tongs and a safety tongs triggering mechanism, wherein the safety tongs triggering mechanism comprises a pulley traction part and a lever triggering part, and the pulley traction part is movably connected with the lever triggering part;
the pulley traction part consists of a traction pulley, a pulley mounting plate, a pulley fixing plate, a bolt and a push rod, wherein the pulley mounting plate is fixed on the objective table through the bolt, the pulley fixing plate is mounted on the traction pulley, the pulley mounting plate is provided with a U-shaped groove, a wheel shaft of the traction pulley extends into the U-shaped groove, a traction rope of the objective table passes through the traction pulley, the pulley fixing plate is connected with the push rod through a plurality of bolts with the same specification, a corresponding smooth through hole is formed in the pulley mounting plate for a screw rod of the bolt to pass through, and a spring structure is arranged on the screw rod between the push rod and the pulley mounting plate;
the lever triggering part consists of a triggering lever and a safety rope, the safety rope is connected with the objective table speed limiter, the triggering lever comprises a lever center shaft, a lever long arm and a lever short arm, the lever center shaft is movably connected with the push rod through the lever long arm, the lever short arm is connected with the safety rope and the lever center shaft, the lever center shaft is fixed on the objective table, and a safety rope tensioning sleeve is arranged at the connection position of the lever short arm and the safety rope;
the safety tongs are fixed on the objective table, the clamping parts of the safety tongs are attached to the guide rails of the upright posts, and the switch positions of the safety tongs are arranged on the paths of the long arms of the levers rotating around the central axes of the levers;
when the objective table normally operates, the elasticity of the spring structure is balanced with the traction force of the traction rope and the tension of the safety rope, and when the traction rope is disconnected to cause the traction force to disappear or the tension of the safety rope to become large due to overspeed, the push rod drives the lever long arm to rotate under the action of resultant force to trigger the switch of the safety tongs.
2. The stacker stage overspeed protection apparatus of claim 1 wherein a gap remains between the pulley securing plate bottom and the pulley mounting plate bottom when the axle of the traction pulley reaches the U-shaped groove bottom.
3. The stacker stage overspeed protection apparatus of claim 1 wherein said smooth through hole has a diameter of 1.1 to 1.3 times the diameter of the screw.
4. The stacker stage overspeed protection apparatus of claim 1 wherein a plurality of traction return springs are also mounted between said pushrod and pulley mounting plate.
5. The stacker stage overspeed protection apparatus of claim 4 wherein said traction return springs are symmetrically mounted.
6. The stacker stage overspeed protection apparatus of claim 4 wherein the total strength of said traction return spring is no more than 1/5 of the total spring strength of the spring structure on the screw.
7. The stacker stage overspeed protection apparatus of claim 1 wherein a length ratio between a short lever arm and a long lever arm of said trigger lever is 1:4-10.
8. The stacker stage overspeed protection apparatus of claim 1 wherein said safety gear is two in total and symmetrically mounted on both sides of said stacker stage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910963342.6A CN110615380B (en) | 2019-10-11 | 2019-10-11 | Stacker objective table overspeed protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910963342.6A CN110615380B (en) | 2019-10-11 | 2019-10-11 | Stacker objective table overspeed protection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110615380A CN110615380A (en) | 2019-12-27 |
| CN110615380B true CN110615380B (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910963342.6A Active CN110615380B (en) | 2019-10-11 | 2019-10-11 | Stacker objective table overspeed protection device |
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| Country | Link |
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| CN (1) | CN110615380B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113824202B (en) * | 2021-08-09 | 2023-12-22 | 罗伯泰克自动化科技（苏州）有限公司 | Wireless power supply stacking machine, stacking system and stacking method based on energy storage element |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140061025A (en) * | 2012-11-13 | 2014-05-21 | 주식회사 에스에프에이 | Stacker crane |
| CN205575529U (en) * | 2016-05-01 | 2016-09-14 | 长沙长泰智能装备有限公司 | Stacker carries cargo bed prevents protection device that falls |
| CN109592608A (en) * | 2018-12-27 | 2019-04-09 | 湖北科德智能装备有限公司 | A kind of safety tongs and loading platform |
| CN209065371U (en) * | 2018-10-18 | 2019-07-05 | 重庆驰骋轻型汽车部件股份有限公司 | A kind of heavily loaded stacker loading platforms mechanical anti-falling device of stereo garage |
| CN210313309U (en) * | 2019-05-13 | 2020-04-14 | 天海欧康科技信息(厦门)有限公司 | Stacker carries cargo bed overspeed protection device |
| CN211310698U (en) * | 2019-10-11 | 2020-08-21 | 罗伯泰克自动化科技（苏州）有限公司 | Stacker objective table overspeed protection device |
| CN212246097U (en) * | 2020-04-21 | 2020-12-29 | 长春融成智能设备制造股份有限公司 | Safety device for instant reaction of stacker |
-
2019
- 2019-10-11 CN CN201910963342.6A patent/CN110615380B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20140061025A (en) * | 2012-11-13 | 2014-05-21 | 주식회사 에스에프에이 | Stacker crane |
| CN205575529U (en) * | 2016-05-01 | 2016-09-14 | 长沙长泰智能装备有限公司 | Stacker carries cargo bed prevents protection device that falls |
| CN209065371U (en) * | 2018-10-18 | 2019-07-05 | 重庆驰骋轻型汽车部件股份有限公司 | A kind of heavily loaded stacker loading platforms mechanical anti-falling device of stereo garage |
| CN109592608A (en) * | 2018-12-27 | 2019-04-09 | 湖北科德智能装备有限公司 | A kind of safety tongs and loading platform |
| CN210313309U (en) * | 2019-05-13 | 2020-04-14 | 天海欧康科技信息(厦门)有限公司 | Stacker carries cargo bed overspeed protection device |
| CN211310698U (en) * | 2019-10-11 | 2020-08-21 | 罗伯泰克自动化科技（苏州）有限公司 | Stacker objective table overspeed protection device |
| CN212246097U (en) * | 2020-04-21 | 2020-12-29 | 长春融成智能设备制造股份有限公司 | Safety device for instant reaction of stacker |
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| Publication number | Publication date |
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| CN110615380A (en) | 2019-12-27 |
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