CN103569918A - Automatic-detection and falling-protection safety device - Google Patents
Automatic-detection and falling-protection safety device Download PDFInfo
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- CN103569918A CN103569918A CN201210270291.7A CN201210270291A CN103569918A CN 103569918 A CN103569918 A CN 103569918A CN 201210270291 A CN201210270291 A CN 201210270291A CN 103569918 A CN103569918 A CN 103569918A
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- column guide
- pressing plate
- falling
- safety device
- pressure plate
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Abstract
An automatic-detection and falling-protection safety device comprises a pressure plate, wherein the pressure plate is hinged to a support; an electromagnet is arranged at one end of the pressure plate and is connected with an electrical control system; a hole is formed in the other end of the pressure plate; an upright column guide track is arranged in the hole and can vertically slide in the hole; a magnetic railing ruler is arranged on the upright column guide track and is provided with a measuring head; the lower portion of the pressure plate is positioned on the outer side of the upright column guide track and is provided with a slide way through a stand; a wedge-shaped sliding block is arranged between the slide way and the upright column guide track; and a spring is arranged between the lower end of the wedge-shaped sliding block and the stand. The automatic-detection and falling-protection safety device is reasonable in structure set, impact on a machine body can be effectively reduced, and permanent deformation on the structure can be avoided; and moreover, the automatic-detection and falling-protection safety device is high in practicability, is applicable to a steel wire rope type lifting platform, a chain type lifting platform, a lead screw type lifting platform and the like, has a power-off protection function, and can be safely locked after power is failed.
Description
Technical field
The present invention relates to a kind of automatic detection anti-falling safe self-locking device, for lifting table, when fracture occurs lifting process hoisting rope, by detection speed, change, safety arrestment lifting table effectively, prevents that platform from falling automatically.
Background technology
Existing lifting table falling-proof safety device is insert block type (or pawl type) rope-breaking safe device normally.Most at the omnidistance framework (or ratchet) of arranging of guide rail, the inserted block of installation activity on lifting table (or ratchet support) and spring, gravity while utilizing lifting table to be promoted (tension on hoisting cable) makes inserted block (or ratchet support) separated with framework (or ratchet), tension during disconnected rope on steel rope disappears, spring ejects inserted block (or ratchet support) rapidly, be stuck in framework (or ratchet) upper, instantaneous braking lifting table.This huge impulsive force, easily deforms inserted block (or ratchet support) and framework (or ratchet), and platform is caused to larger impact.Lifting table suspension centre position is limited to the installation site of inserted block (or ratchet) and framework (or ratchet), and is confined to the lifting table of steel wire rope type, inapplicable for the lifting table of other forms (as: chain-type, screw-type).
Summary of the invention
That technical matters to be solved by this invention is that the deficiency existing for above-mentioned existing turning device and a kind of structure providing arrange is reasonable, safe and reliable, reduce and impact and unnecessary distortion and practicality detects anti-falling safe self-locking device more widely automatically.
The object of the present invention is achieved like this:
A kind of automatic detection falling-proof safety device, it comprises the pressing plate being hinged on bearing, pressing plate one end is provided with electromagnet, electromagnet connects electric control system, the other end of pressing plate is provided with hole, in hole, be provided with column guide rail, pressing plate can slide up and down along column guide rail, column guide rail is provided with magnetic railings ruler, magnetic railings ruler is provided with measuring head, pressing plate bottom is positioned at column guide rail outside and is provided with slideway by support, between slideway and column guide rail, is provided with wedge block, between wedge block lower end and support, is provided with spring.
Above-mentioned electromagnet is arranged on the top of pressing plate, after electromagnet energising, pressing plate is produced to attractive force.
The present invention has obtained following technique effect:
Structure of the present invention arranges rationally, can effectively reduce the impact to body, also can not cause permanent distortion to structure; Practicality is wide, can be applicable to the lifting tables such as steel wire rope type, chain-type, screw-type; There is power-off protection function, after power-off, still can safe self-locking.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
Fig. 1 is structural representation of the present invention.
The specific embodiment
A kind of automatic detection falling-proof safety device as shown in Figure 1, it comprises the pressing plate 4 being hinged on bearing 10, pressing plate one end is provided with electromagnet 8, electromagnet connects electric control system 9, the other end of pressing plate is provided with hole 11, in hole, be provided with column guide rail 3, pressing plate can slide up and down along column guide rail, column guide rail is provided with magnetic railings ruler 1, magnetic railings ruler is provided with measuring head 2, pressing plate bottom is positioned at column guide rail outside and is provided with slideway 6 by support 12, is provided with wedge block 5 between slideway and column guide rail, is provided with spring 7 between wedge block lower end and support.Described electromagnet is arranged on the top of pressing plate, after electromagnet energising, pressing plate is produced to attractive force.
The omnidistance upper magnetic railings ruler 1 of installing of column guide rail 3, measuring head 2 is used in conjunction with magnetic railings ruler, detects the kinematic velocity of lifting table.According to actual requirement, determine the safe operation speed of lifting table, and this velocity amplitude is set to the trigger point in electric control system 9.
When the velocity amplitude detecting is less than or equal to safety movement speed, electric control system 9 judges that lifting table is in normal operation mode of operation, now, electric control system is controlled the coil electricity of electromagnet 8, produce enough suction, hold pressing plate 4, the other end of pressing plate is by Compress Spring 7, and make to keep certain interval between wedge block 5 and slideway 6, guarantee lifting table normal operation.
When the velocity amplitude detecting is greater than safety movement speed, electric control system 9 is judged lifting tables (or wire cable rupture, or chain breakage, or screw mandrel lost efficacy) in abnormal running mode of operation, now, electric control system is controlled the coil blackout of electromagnet 8, and electromagnetic attraction disappears, and pressing plate 4 loosens, spring 7 is by compression released wedge block 5, make by wedge block, to compress between column guide rail 3 and slideway 6, utilize the auto-lock function of wedge block, prevent to fall.
When lifting platform system opens circuit, the also power-off of the coil of electromagnet 8, electromagnetic attraction disappears, pressing plate 4 loosens, and spring 7 is by compression released wedge block 5, makes by wedge block 5, to compress between column guide rail 3 and slideway 6, utilize the auto-lock function of wedge block, prevent to fall.
This reaction time of automatically detecting anti-falling safe self-locking device can be controlled by calculating accurately, and brake safe is reliable, good stability.
Claims (2)
1. one kind is detected falling-proof safety device automatically, it is characterized in that: it comprises the pressing plate (4) being hinged on bearing (10), pressing plate one end is provided with electromagnet (8), electromagnet connects electric control system (9), the other end of pressing plate is provided with hole (11), in hole, be provided with column guide rail (3), pressing plate can slide up and down along column guide rail, column guide rail is provided with magnetic railings ruler (1), magnetic railings ruler is provided with measuring head (2), pressing plate bottom is positioned at column guide rail outside and is provided with slideway (6) by support (12), between slideway and column guide rail, be provided with wedge block (5), between wedge block lower end and support, be provided with spring (7).
2. automatic detection falling-proof safety device according to claim 1, is characterized in that: described electromagnet is arranged on the top of pressing plate, after electromagnet energising, pressing plate is produced to attractive force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210270291.7A CN103569918A (en) | 2012-07-31 | 2012-07-31 | Automatic-detection and falling-protection safety device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210270291.7A CN103569918A (en) | 2012-07-31 | 2012-07-31 | Automatic-detection and falling-protection safety device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103569918A true CN103569918A (en) | 2014-02-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210270291.7A Pending CN103569918A (en) | 2012-07-31 | 2012-07-31 | Automatic-detection and falling-protection safety device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103569918A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104016267A (en) * | 2014-05-12 | 2014-09-03 | 中色科技股份有限公司 | Falling prevention device of stacking machine |
| CN105779697A (en) * | 2014-12-23 | 2016-07-20 | 鞍钢股份有限公司 | Liquid iron pretreatment spray gun positioning device and positioning method |
| CN107720601A (en) * | 2016-08-12 | 2018-02-23 | 天津丰宁机电制品有限公司 | A kind of lifting tables platform for being provided with electromagnetic brake |
| CN109437070A (en) * | 2018-12-21 | 2019-03-08 | 核动力运行研究所 | A kind of long-range fall arrest arrestment mechanism |
| CN113525544A (en) * | 2021-07-23 | 2021-10-22 | 中国矿业大学 | Intelligent steel wire rope flaw detection climbing robot with magnetic type anti-falling system |
| WO2023130319A1 (en) * | 2022-01-06 | 2023-07-13 | 宁德时代新能源科技股份有限公司 | Control method and apparatus for lifting/lowering system, plc and storage medium |
-
2012
- 2012-07-31 CN CN201210270291.7A patent/CN103569918A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104016267A (en) * | 2014-05-12 | 2014-09-03 | 中色科技股份有限公司 | Falling prevention device of stacking machine |
| CN104016267B (en) * | 2014-05-12 | 2016-04-27 | 中色科技股份有限公司 | A kind of piler falling proof device |
| CN105779697A (en) * | 2014-12-23 | 2016-07-20 | 鞍钢股份有限公司 | Liquid iron pretreatment spray gun positioning device and positioning method |
| CN105779697B (en) * | 2014-12-23 | 2018-05-29 | 鞍钢股份有限公司 | A kind of hot metal pretreatment spray gun positioner and localization method |
| CN107720601A (en) * | 2016-08-12 | 2018-02-23 | 天津丰宁机电制品有限公司 | A kind of lifting tables platform for being provided with electromagnetic brake |
| CN109437070A (en) * | 2018-12-21 | 2019-03-08 | 核动力运行研究所 | A kind of long-range fall arrest arrestment mechanism |
| CN109437070B (en) * | 2018-12-21 | 2024-02-13 | 核动力运行研究所 | Remote anti-falling braking mechanism |
| CN113525544A (en) * | 2021-07-23 | 2021-10-22 | 中国矿业大学 | Intelligent steel wire rope flaw detection climbing robot with magnetic type anti-falling system |
| WO2023130319A1 (en) * | 2022-01-06 | 2023-07-13 | 宁德时代新能源科技股份有限公司 | Control method and apparatus for lifting/lowering system, plc and storage medium |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140212 |