CN202885768U - Magnetic grid detection device for synchronization of boarding-bridge elevating mechanism - Google Patents
Magnetic grid detection device for synchronization of boarding-bridge elevating mechanism Download PDFInfo
- Publication number
- CN202885768U CN202885768U CN 201220525443 CN201220525443U CN202885768U CN 202885768 U CN202885768 U CN 202885768U CN 201220525443 CN201220525443 CN 201220525443 CN 201220525443 U CN201220525443 U CN 201220525443U CN 202885768 U CN202885768 U CN 202885768U
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- elevating mechanism
- magnetic grid
- magnetic
- detection device
- boarding
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model discloses a magnetic grid detection device for synchronization of a boarding-bridge elevating mechanism. The magnetic grid detection device comprises a magnetic grid ruler and a reading head. The magnetic grid ruler is fixed on a surface of an inner conduit of the elevating mechanism. The reading head is fixed on an outer conduit of the elevating mechanism via a rack and is interacted with a monitoring system by means of electromagnetic conversion signals. When the monitoring system detects that the synchronization of the elevating mechanism exceeds the predetermined deviation, then manual mode or the machine mode is adopted for the leveling purpose so as to guarantee the synchronous operation, thereby ensuring the safety of the boarding bridge device. Simple in structure and moderation in resolution, the magnetic grid detection device of the utility model adopts the magnetic grid detection mode and achieves a great decrease in cost, compared with a synchronous motor, a servo motor, a servo oil cylinder or other means.
Description
Technical field
The utility model relates to a kind of displacement detector, especially the synchronous magnetic grid pick-up unit of boarding bridge elevating mechanism.
Background technology
The elevating mechanism of existing connecting bridge mainly adopts the gantry structure form, by type of drive Organic Electricity and hydraulic pressure dual mode.Electromechanical lift boarding bridge generally adopts the motor-driven of two same model, is arranged in the passage left and right sides, drives connecting bridge and does elevating movement by driving ball screw; The hydraulic lifting connecting bridge is then by Hydraulic Station, and through fluid pressure line, the hydraulic actuating mechanism hydraulic cylinder servicing fluids force feed in the lifting column of both sides reaches the lifting connecting bridge, relies on the deadweight of connecting bridge when falling bridge, and the control throttling valve reaches and falls the bridge purpose.
The connecting bridge both sides are same structures under the perfect condition, and lifting should be synchronous, but always exist some to cause the factor of difference in the actual conditions, such as damping of response characteristic, actual speed, oil circuit etc., the accumulation of these differentia influences can cause beat, asynchrony phenomenon occurs.Overproof when excessive when synchronously, possible Anomalies Caused stops, even the concentrated structural break that causes elevating mechanism of stress, the serious consequence such as cave in.Therefore to monitoring and the control of the synchronization lifting state of connecting bridge both sides, be the important measures of guaranteeing the connecting bridge safe operation.
Although can adopt synchronous motor, servomotor and servo-cylinder to guarantee synchronization accuracy from technical standpoint, corresponding cost and accuracy requirement are all too high, and be from view point of value project, very uneconomical for connecting bridge.
The utility model content
The technical problems to be solved in the utility model provides the synchronous magnetic grid pick-up unit of boarding bridge elevating mechanism that a kind of accurate monitoring and cost control take into account.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: the synchronous magnetic grid pick-up unit of boarding bridge elevating mechanism, comprise a magnetic railings ruler, and this magnetic railings ruler is fixed in the inner catheter surface of elevating mechanism; One read head, this read head is fixed on the outer catheter of elevating mechanism by a support.
Further, each side between described outer catheter and the inner catheter is provided with the guiding carriage, and the guiding carriage of a corresponding side with magnetic railings ruler is provided with one and dodges groove, and inner catheter and elevating mechanism outer catheter are slidingly matched.
Further, described guiding carriage is a slide block.
Further, the fixed form of described magnetic railings ruler and inner catheter is that surface of contact is pasted, and the magnetic railings ruler upper and lower side is all reinforced with screw.
The beneficial effects of the utility model: adopt the magnetic grid test format, simple in structure, resolution is moderate, greatly reduces cost than means such as synchronous motor, servomotor and servo-cylinders; The slide block of a corresponding side with magnetic railings ruler is provided with one and dodges groove, and contactless form can be avoided mechanical damage, can stablize for a long time, reliability service, and convenient for installation and maintenance, be convenient to the maintenance displacement.
Description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described further.
Fig. 1 is the position view of magnetic grid pick-up unit in connecting bridge;
Fig. 2 is the synchronous magnetic grid structure of the detecting device of the utility model boarding bridge elevating mechanism synoptic diagram;
Fig. 3 is the cross-sectional view of the synchronous magnetic grid pick-up unit of the utility model on boarding bridge elevating mechanism.
Embodiment
Figure 1 shows that the position view of magnetic grid pick-up unit 1 in connecting bridge, magnetic grid pick-up unit 1 is located at elevating mechanism column 9, adopt magnetic grid to detect the elevating mechanism change in displacement, and come alternately synchronization lifting mechanism two heel posts 9 by supervisory system, simple in structure, resolution is moderate, can greatly reduce cost than means such as synchronous motor, servomotor and servo-cylinders.
Figure 2 shows that the synchronous magnetic grid structure of the detecting device of the utility model boarding bridge elevating mechanism synoptic diagram, magnetic grid pick-up unit 1 comprises magnetic railings ruler 2, read head 4, magnetic railings ruler 2 usefulness seccotines are fixed in inner catheter 3 surfaces of elevating mechanism, magnetic railings ruler 2 upper and lower sides are all reinforced with screw, and read head 4 is fixed on the outer catheter 6 of elevating mechanism by support 5.
Fig. 3 is the cross-sectional view of the synchronous magnetic grid pick-up unit 1 of the utility model on boarding bridge elevating mechanism, inner catheter 3 is slidingly matched with the elevating mechanism outer catheter, be provided with four guiding carriages 7 all around between outer catheter 6 and the inner catheter 3, described guiding carriage 7 is slide block, be provided with one with the slide block of magnetic railings ruler 2 corresponding sides and dodge groove 8, contactless form can be avoided mechanical damage, can stablize for a long time, reliability service, and convenient for installation and maintenance, be convenient to the maintenance displacement.
Synchronous magnetic grid pick-up unit 1 course of work of the boarding bridge elevating mechanism of present embodiment is, when lifting column inner catheter 3, when outer catheter 6 has relative displacement, produce the magnetic induction phenomenon between read head 4 and the magnetic railings ruler 2, directly read displacement by read head 4, measure the displacement of outer catheter 6, magnetoelectricity conversion by read head 4, the displacement magnetization signal that response location is changed converts electric signal to and flows to supervisory system, when the supervisory system synchronous counting exceeds specified allowed band, just can in time find, and adopt manually pattern to carry out leveling, perhaps carry out the synchronous error Real Time Monitoring by PLC, if discovery is overproof synchronously, then send the leveling signal to hydraulic system or drive motor, guarantee synchronous operation, to guarantee the security of connecting bridge equipment.
The above only is preferential embodiment of the present utility model; the utility model is not limited to above-mentioned embodiment; such as the difformity of read head 4 and magnetic railings ruler 2, size etc., as long as all belong within the protection domain of the present utility model with the technical scheme of basic identical means realization the utility model purpose.
Claims (4)
1. the synchronous magnetic grid pick-up unit of boarding bridge elevating mechanism is characterized in that described magnetic grid pick-up unit (1) comprises a magnetic railings ruler (2), and this magnetic railings ruler (2) is fixed in inner catheter (3) surface of elevating mechanism; One read head (4), this read head (4) is fixed on the outer catheter (6) of elevating mechanism by a support (5).
2. the synchronous magnetic grid pick-up unit of boarding bridge elevating mechanism according to claim 1, it is characterized in that each side between described outer catheter (6) and the inner catheter (3) is provided with guiding carriage (7), be provided with one with the guiding carriage (7) of the corresponding side of magnetic railings ruler (2) and dodge groove (8), inner catheter (3) is slidingly matched with elevating mechanism outer catheter (6).
3. the synchronous magnetic grid pick-up unit of boarding bridge elevating mechanism according to claim 2 is characterized in that described guiding carriage (7) is a slide block.
4. the synchronous magnetic grid pick-up unit of boarding bridge elevating mechanism according to claim 1 is characterized in that described magnetic railings ruler (2) and the fixed form of inner catheter (3) are that surface of contact is pasted, and magnetic railings ruler (2) upper and lower side is all reinforced with screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220525443 CN202885768U (en) | 2012-10-15 | 2012-10-15 | Magnetic grid detection device for synchronization of boarding-bridge elevating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220525443 CN202885768U (en) | 2012-10-15 | 2012-10-15 | Magnetic grid detection device for synchronization of boarding-bridge elevating mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202885768U true CN202885768U (en) | 2013-04-17 |
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ID=48077189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220525443 Expired - Lifetime CN202885768U (en) | 2012-10-15 | 2012-10-15 | Magnetic grid detection device for synchronization of boarding-bridge elevating mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202885768U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997830A (en) * | 2012-10-15 | 2013-03-27 | 蒂森克虏伯机场系统(中山)有限公司 | Synchronous grid detecting device of boarding bridge lifting mechanism |
| CN107352241A (en) * | 2017-07-19 | 2017-11-17 | 天奇自动化工程股份有限公司 | Lowering or hoisting gear and its function realizing method with belt fracture warning function |
-
2012
- 2012-10-15 CN CN 201220525443 patent/CN202885768U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102997830A (en) * | 2012-10-15 | 2013-03-27 | 蒂森克虏伯机场系统(中山)有限公司 | Synchronous grid detecting device of boarding bridge lifting mechanism |
| CN107352241A (en) * | 2017-07-19 | 2017-11-17 | 天奇自动化工程股份有限公司 | Lowering or hoisting gear and its function realizing method with belt fracture warning function |
| CN107352241B (en) * | 2017-07-19 | 2023-09-01 | 天奇自动化工程股份有限公司 | Lifting device with belt breakage early warning function and function implementation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130417 |