CN114319095A - Noise-reduction multi-dimensional linkage control system and application thereof in analog-digital expansion device - Google Patents
Noise-reduction multi-dimensional linkage control system and application thereof in analog-digital expansion device Download PDFInfo
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- CN114319095A CN114319095A CN202210063690.XA CN202210063690A CN114319095A CN 114319095 A CN114319095 A CN 114319095A CN 202210063690 A CN202210063690 A CN 202210063690A CN 114319095 A CN114319095 A CN 114319095A
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Abstract
The invention belongs to an auxiliary mechanism of a telescopic device, and particularly relates to a noise reduction multi-dimensional linkage control system and application thereof in an analog-digital telescopic device. The noise reduction multi-dimensional linkage control system comprises parallel and spaced side and middle longitudinal beams, and the middle longitudinal beams are erected on the upper surface of the cross beam through elastic supporting elements; the elastic element is arranged on the positioning columns between the chain plates and the lower surfaces of the side longitudinal beams and the middle longitudinal beams, at least one parallelogram mechanism is formed by hinging adjacent sides, middle longitudinal beams or adjacent middle longitudinal beams through the chain plates, and the parallelogram mechanisms which are longitudinally adjacent and inclined in the same direction comprise a shared chain plate. The invention solves the problems of poor deflection uniformity, high noise and the like in the prior art, and has the advantages of good deflection uniformity, low noise and the like.
Description
Technical Field
The invention belongs to an auxiliary mechanism of a telescopic device, and particularly relates to a noise reduction multi-dimensional linkage control system and application thereof in an analog-digital telescopic device.
Background
With the rapid development of highways and sea-crossing highways in China, more and more bridges are built, and the span of the bridges is larger and larger, so that higher requirements are provided for the telescopic devices arranged between two beam ends of the bridges and between the beam ends and the bridge abutment. The bridge expansion device is used as an important device of the upper structure of the bridge, adjusts the displacement and connection between the upper structures caused by vehicle load and bridge building materials, and meets the requirements of free expansion and contraction of the beam end of the bridge, corner deformation and stable passing of the vehicle. The general technical conditions of highway bridge expansion devices (JT/T327-2016) provide clear requirements for the definition, classification, product performance and detection methods of expansion devices, and along with the wide application of the modular expansion devices, the problems of diseases are increasingly prominent, the displacement control system has poor displacement uniformity, high noise, falling off of sealing belts, water resistance failure, component corrosion, incapability of adapting to large transverse displacement, vertical displacement, sector corners and the like.
The displacement control structure of the present modulus type telescopic device mainly comprises a compression spring control type, a shear spring control type and a hinge control type. The uniform displacement control effect of the compression spring or the shearing spring in actual use is poor, the compression rigidity or the shearing rigidity can change due to frequent compression or shearing in the long-term use process, the rubber aging problem exists, the long-term use is not facilitated, and the service life is also influenced; because the two ends of the hinge are fixed in the displacement control box of the telescopic device, and the middle node is also fixed on the hanger, the hinge lacks the capability of adapting to transverse or vertical deformation; because no buffering exists between the chain plates, the vibration is large under the impact action of traveling loads and the like, the noise is large, and the service function and the service life are influenced.
Along with motor vehicles's scale, the flow, the increase by a wide margin of tonnage, the destruction of expansion joint is outstanding day by day, in order to guarantee that the vehicle goes safety and avoid the destruction to the bridge, how can improve the homogeneity that shifts at expansion joint, improve driving comfort level, reduce the noise and improve life, reduce the damage at expansion joint, adapt to the bridge simultaneously, especially large-scale suspension bridge, cable-stay bridge (easily in the vertical, horizontal, the vertical bridge construction who takes place great deflection) big displacement, the multidimension shifts the demand and becomes the current problem that awaits the solution urgently.
The applicant does not find the same or similar literature reports after searching.
Disclosure of Invention
The invention provides a noise reduction multi-dimensional linkage control system and application thereof in an analog-digital expansion device, which achieve the purposes of improving the displacement uniformity of an expansion joint, improving the driving comfort level, reducing noise, prolonging the service life and reducing the damage of the expansion joint by carrying out structure optimization design on the displacement control system of the analog-digital expansion device, and simultaneously adapting to the requirements of large displacement and multi-dimensional displacement of bridges, particularly large suspension bridges and cable-stayed bridges (bridge structures which are easy to generate large deformation in the longitudinal direction, the transverse direction and the vertical direction).
The overall technical concept of the invention is as follows:
the noise reduction multi-dimensional linkage control system comprises side longitudinal beams which are distributed in parallel at intervals and are respectively arranged on the upper surface of a displacement box, and middle longitudinal beams which are distributed between the side longitudinal beams at intervals and are parallel to the side longitudinal beams, wherein the middle longitudinal beams are erected on the upper surface of a cross beam through elastic supporting elements, and two ends of the cross beam are respectively erected in the displacement box; the elastic element is arranged between the lower surfaces of the chain plates and the side longitudinal beams or the middle longitudinal beams and sleeved on the positioning columns, at least one parallelogram mechanism is formed between the adjacent side longitudinal beams and the middle longitudinal beams or between the adjacent middle longitudinal beams through the hinging of the chain plates, and the parallelogram mechanisms which are longitudinally adjacent and inclined in the same direction comprise a shared chain plate.
The application of the noise reduction multi-dimensional linkage control system in an analog-digital telescopic device.
The specific technical structure of the invention is as follows:
in order to facilitate the arrangement of the noise-reduction multi-dimensional linkage control system and improve the compatibility of parts and different modulus type expansion devices, the preferable technical implementation means is that the chain plate comprises a long chain plate or a short chain plate, a positioning hole of the long chain plate is positioned in the center of the long chain plate, and working holes are positioned at two ends of the long chain plate; the positioning hole of the short chain plate is positioned at one end of the short chain plate, and the working hole is positioned at the other end of the short chain plate and is opposite to the positioning hole; the positioning hole is a round hole matched with the positioning column, and the working hole is a long round hole matched with the positioning column.
In order to improve the matching flexibility of the chain plate and the positioning column and reduce the abrasion of parts, the preferable technical implementation means is that the working surface of the long round hole and/or the positioning column is provided with a self-lubricating shaft sleeve.
In order to make the arrangement of parts more compact, the preferable technical implementation means is that the two long chain plate positioning holes are concentric and arranged in an X shape, and the two short chain plate working holes are concentric and arranged in a V shape.
In order to realize better adaptation of the structure of the positioning column and the chain plate, the preferable technical implementation means is that the positioning column adopts a long positioning column, a short positioning column or a combination thereof, the upper end of the long positioning column is fixed with the side longitudinal beam or the middle longitudinal beam and is adapted to the positioning hole and/or the working hole of the chain plate, and the positioning column adopts one of a cylinder shape or a cylinder shape with a boss.
The elastic element is mainly used for avoiding impact on parts caused by passing of a vehicle and adapting to the requirement of a vertical corner, and the preferable technical implementation means is that the elastic element is one or a combination of a pressure spring and a rubber spring.
In order to avoid loosening of parts and improve the matching reliability of the parts, the preferred technical implementation means is that the elastic element selects a pressure spring, a locking component is arranged on a positioning column outside the chain plate, the locking component selects a locking nut, a locking pin or double nuts, and the single nut is welded.
In order to prevent external rainwater and sundries from corroding and damaging parts and bridge structures, a preferable technical implementation means is that water stops are connected between adjacent side longitudinal beams and middle longitudinal beams and between the middle longitudinal beams.
The two ends of the cross beam are preferably arranged in the following mode, the lower parts of the two ends of the cross beam are erected in the first displacement box and the second displacement box through rubber plates respectively, and the upper parts of the two ends of the cross beam are in elastic fit with the inner surfaces of the first displacement box and the second displacement box through the rubber plates.
The middle part of the cross beam is preferably arranged in such a way that the middle part of the cross beam penetrates between the rubber plates arranged at the lower part of the middle longitudinal beam and the upper surface of the pressure plate at the bottom of the hanging bracket.
The more preferable technical implementation means is that the pressure plate is connected with the hanger through a screw and locking components, and a stop plate is arranged between the locking components.
In order to reduce the loss between the parts and increase the matching flexibility between the parts, the preferable technical implementation means is that self-lubricating sliding sheets are arranged between vertically superposed chain plates, between the chain plates and the elastic elements and between the chain plates and the locking members.
The invention has the substantive characteristics and the obvious technical progress that:
1. at least one group of parallelogram mechanisms are formed among the side longitudinal beams, the middle longitudinal beams and the chain plates by delicately arranging the chain plates at the lower parts of the side longitudinal beams and the middle longitudinal beams, and the linkage and displacement uniformity of the mechanisms during contraction and stretching can be ensured no matter how large the expansion amount is.
2. The long round holes arranged on the chain plates can ensure that the mechanism can effectively meet the requirement of transverse displacement when the mechanism generates transverse displacement, and each control assembly is independent from each other, has high degree of freedom and can adapt to fan-shaped corners.
3. When the two ends (between bridge beam ends or between a bridge beam end and a bridge abutment) of the expansion device generate vertical displacement (namely height difference), the middle longitudinal beam is driven by the cross beam to adapt to gradient change generated by the vertical displacement; because the side longitudinal beams positioned at the two sides of the mechanism are connected with the road surface, the side longitudinal beams at the two sides are still in a horizontal state, an included angle is generated between the side longitudinal beams and the side longitudinal beams, an included angle is also generated between the chain plate at the lower part of the middle longitudinal beam and the side longitudinal beams, and at the moment, the elastic elements arranged among the side longitudinal beams, the middle longitudinal beam and the chain plate can adapt to the included angle. The linkage control of the traditional transmission mechanism in a single direction is realized, the multidimensional linkage control is realized, and the requirements of large displacement and multidimensional deflection of large suspension bridges and cable-stayed bridges (bridge structures which are easy to generate large deformation in the longitudinal direction, the transverse direction and the vertical direction) can be met.
4. The elastic element is arranged between the chain plate and the side longitudinal beam and between the chain plate and the middle longitudinal beam, so that the impact between the chain plate and the side longitudinal beam or between the chain plate and the profile steel assembly is avoided, the vibration impact and noise caused by the impact of the load of the traveling crane and other loads are avoided, the comfort level of the traveling crane is improved, the noise pollution is avoided, and the use requirement of the municipal bridge can be further met.
5. Elastic element provides certain buffering and pretightning force, has reduced the link joint to the impact of reference column lower part lock nut, and locking effect is showing, has further improved coordinated control system's life, has guaranteed structure safety.
6. The elastic element can provide the same pretightening force, is convenient to implement and can ensure that the resistance at each position is consistent; further improve the smoothness and uniformity of the linkage control of the mechanism.
7. The design of self-lubricating axle sleeve, self-lubricating gleitbretter has avoided the dry grinding between the traditional hinge structure link joint, between link joint and the location axle, has reduced frictional resistance, has avoided because of wearing and tearing between the component, causes the clearance too big, and striking and noise, nut pine that produce between the driving in-process structure take place of harm such as pine take off, have improved coordinated control system's life, have guaranteed structural safety.
Drawings
The attached drawings of the invention are as follows:
fig. 1 is a schematic structural diagram of a noise reduction multi-dimensional linkage control system of a modular expansion device according to the present invention.
Fig. 2 is a bottom view of fig. 1.
Fig. 3 is a view from a-a of fig. 1.
Fig. 4 is a view from direction B of fig. 3.
Fig. 5 is a schematic view of the assembly structure of the middle longitudinal beam, the cross beam and the hanger in the invention.
Fig. 6 is a left side view of fig. 5.
FIG. 7 is a schematic diagram of a long chain plate structure in the present invention.
FIG. 8 is a schematic diagram of a short chain plate structure in the present invention.
Fig. 9 is a schematic structural diagram of the noise reduction multi-dimensional linkage control system according to the present invention when lateral displacement and longitudinal displacement occur.
FIG. 10 is a schematic diagram of the state of the noise reduction multi-dimensional linkage control system in the invention when vertical deflection occurs.
The reference numerals in the present invention are as follows:
1. a side stringer; 2. a middle longitudinal beam; 3. a long chain plate; 4. a short link plate; 5. a cross beam; 6. a first displacement tank; 7. a rubber support; 8. a locking member; 9. a rubber plate; 10. a stopper plate; 11. pressing a plate; 12. a second displacement box; 13. a water stop; 14. a long positioning column; 15. a short positioning column; 16. self-lubricating slip sheets; 17. an elastic element; 18. self-lubricating axle sleeve.
Detailed Description
The accompanying drawings are included to provide a further understanding of the embodiments of the invention, and are incorporated in and constitute a part of this specification.
Examples
The overall structure of the present embodiment is shown in the figure, wherein the noise reduction multi-dimensional linkage control system comprises side longitudinal beams 1 which are distributed in parallel at intervals and are respectively arranged on the upper surface of the displacement box, three middle longitudinal beams 2 which are distributed between the side longitudinal beams 1 at intervals and are parallel to the side longitudinal beams, the middle longitudinal beams 2 are erected on the upper surface of a cross beam 5 through elastic support elements, and two ends of the cross beam 5 are respectively erected in the displacement box; the longitudinal-direction-inclined parallel mechanism is characterized by further comprising a strip-shaped chain plate, a positioning hole is formed in one side or the center of the strip-shaped chain plate, working holes are formed in one side or two symmetrical sides of the positioning hole, the working holes and the positioning holes of the chain plate are respectively matched with the positioning columns arranged on the lower surfaces of the side longitudinal beams 1 and the middle longitudinal beams 2 in a sleeved mode, the elastic element 17 is arranged between the lower surfaces of the chain plate and the lower surfaces of the side longitudinal beams 1 or the middle longitudinal beams 2 and sleeved on the positioning columns, at least one parallelogram mechanism is formed between the adjacent side longitudinal beams 1 and the middle longitudinal beams 2 or between the adjacent middle longitudinal beams 2 in a hinged mode through the chain plate, and the longitudinally adjacent parallelogram mechanisms which are inclined in the same direction comprise a shared chain plate.
The application of the noise reduction multi-dimensional linkage control system in an analog-digital telescopic device.
The chain plates comprise long chain plates 3 or short chain plates 4, the positioning holes of the long chain plates 3 are positioned in the centers of the long chain plates, and the working holes are positioned at two ends of the long chain plates 3; the positioning hole of the short chain plate 4 is positioned at one end of the short chain plate, and the working hole is positioned at the other end of the short chain plate 4 and is opposite to the positioning hole; the positioning hole is a round hole matched with the positioning column, and the working hole is a long round hole matched with the positioning column. The side longitudinal beam 1 and the middle longitudinal beam 2 adjacent to the side longitudinal beam are connected through a short chain plate, the side longitudinal beam 1 is connected with the first middle longitudinal beam and the second middle longitudinal beam through long chain plates, the second middle longitudinal beam, the third middle longitudinal beam and the fourth middle longitudinal beam are connected through a second long chain plate, and the third middle longitudinal beam and the fourth middle longitudinal beam are connected with the other side longitudinal beam 1 through a third long chain plate.
And self-lubricating shaft sleeves 18 are arranged on the working surfaces of the long round holes, the round holes and the positioning columns.
The two long chain plates 3 are concentrically arranged with the positioning holes in an X shape, and the two short chain plates 4 are concentrically arranged with the working holes in a V shape.
The positioning columns are long positioning columns 14, short positioning columns 15 or a combination thereof, the upper ends of the long positioning columns 14 and the short positioning columns are fixed with the side longitudinal beams 1 or the middle longitudinal beams 2 and are matched with positioning holes and/or working holes in the chain plates, and the positioning columns are cylindrical or cylindrical with bosses.
The elastic element 17 is a pressure spring, the locking component 8 is arranged on the positioning column on the outer side of the chain plate, and the locking component is a locking nut or a locking pin.
The lower parts of the two ends of the crossbeam 5 are respectively erected in the first displacement box 6 and the second displacement box 12 through rubber plates 9, and the upper parts of the two ends of the crossbeam 5 are elastically matched with the inner surfaces of the first displacement box 6 and the second displacement box 12 through the rubber plates 7.
The middle part of the cross beam 5 passes through between the rubber plates 7 arranged at the lower part of the middle longitudinal beam 2 and the upper surface of the hanger bottom pressing plate 11.
The pressing plate 11 is connected with the hanger through a screw and locking components 8, and a stop plate 10 is arranged between the locking components 8.
Self-lubricating sliding sheets 16 are arranged between vertically overlapped chain plates, between the chain plates and the elastic elements and between the chain plates and the locking components 8.
The remainder being as described above.
Claims (13)
1. The noise reduction multi-dimensional linkage control system comprises side longitudinal beams (1) which are distributed in parallel at intervals and are respectively arranged on the upper surface of a displacement box, and middle longitudinal beams (2) which are distributed between the side longitudinal beams (1) at intervals and are parallel to the side longitudinal beams, wherein the middle longitudinal beams (2) are erected on the upper surface of a cross beam (5) through elastic supporting elements, and two ends of the cross beam (5) are respectively erected in the displacement box; the novel chain plate is characterized by further comprising a bar-shaped chain plate, a positioning hole is formed in one side or the center of the bar-shaped chain plate, working holes are formed in one side or two sides symmetrical to the positioning hole, the working holes and the positioning holes of the chain plate are respectively matched with positioning columns arranged on the lower surfaces of the side longitudinal beams (1) and the middle longitudinal beams (2) in a sleeved mode correspondingly, an elastic element (17) is arranged between the lower surfaces of the chain plate and the lower surfaces of the side longitudinal beams (1) or the middle longitudinal beams (2) and sleeved on the positioning columns, at least one parallelogram mechanism is formed between the adjacent side longitudinal beams (1) and the middle longitudinal beams (2) or between the adjacent middle longitudinal beams (2) in a hinged mode through the chain plate, and the parallelogram mechanisms which are longitudinally adjacent and inclined in the same direction comprise a shared chain plate.
2. A noise reduction multi-dimensional linkage control system according to claim 1, characterized in that the link plates comprise long link plates (3) or short link plates (4), the positioning hole of the long link plate (3) is located at the center thereof, and the working holes are located at both ends of the long link plate (3); the positioning hole of the short chain plate (4) is positioned at one end of the short chain plate, and the working hole is positioned at the other end of the short chain plate (4) and is opposite to the positioning hole; the positioning hole is a round hole matched with the positioning column, and the working hole is a long round hole matched with the positioning column.
3. A noise-reducing multidimensional linkage control system according to claim 2, wherein the working surface of the oblong hole and/or the circular hole and/or the positioning post is provided with a self-lubricating shaft sleeve (18).
4. A noise-reducing multi-dimensional linkage control system according to claim 3, wherein the positioning holes of the two long link plates (3) are concentric and arranged in an X shape, and the positioning holes of the two short link plates (4) are concentric and arranged in a V shape.
5. The noise reduction multi-dimensional linkage control system according to claim 1 or 2, wherein the positioning columns are long positioning columns (14), short positioning columns (15) or a combination thereof, the upper ends of the long positioning columns are fixed with the side longitudinal beams (1) or the middle longitudinal beams (2) and are matched with positioning holes and/or working holes in the chain plates, and the positioning columns are cylindrical or cylindrical with bosses.
6. A noise reduction multi-dimensional linkage control system according to claim 1, wherein the elastic element (17) is selected from one of a compression spring, a rubber spring or a combination thereof.
7. A noise reduction multi-dimensional linkage control system according to claim 6, wherein the elastic element (17) is a compression spring, a locking member (8) is arranged on the positioning column on the outer side of the chain plate, and the locking member is a locking nut, a locking pin or a double nut.
8. A noise-reducing multi-dimensional linkage control system according to claim 1, characterized in that water stops (13) are connected between adjacent side longitudinal beams (1) and middle longitudinal beams (2) and between middle longitudinal beams (2).
9. The noise-reducing multidimensional linkage control system according to claim 1, wherein the lower parts of the two ends of the beam (5) are respectively erected in the first displacement box (6) and the second displacement box (12) through rubber plates (9), and the upper parts of the two ends of the beam (5) are elastically matched with the inner surfaces of the first displacement box (6) and the second displacement box (12) through rubber plates (7).
10. A noise reducing multi-dimensional coordinated control system according to claim 1 or 9, characterized in that the middle part of the cross beam (5) passes through between rubber plates (7) arranged at the lower part of the middle longitudinal beam (2) and the upper surface of the hanger bottom pressing plate (11).
11. A noise-reducing multi-dimensional linkage control system according to claim 10, wherein the pressure plate (11) is connected to the hanger by a screw, a lock nut and a spring washer (8), and a stop plate (10) is provided between the lock nut and the spring washer (8).
12. A noise reducing multi-dimensional coordinated control system according to any one of claims 1, 2, 3, 4, 6, 7, characterized in that the link plates and the locking members (8) are provided with self-lubricating slides (16) between vertically stacked link plates, between link plates and elastic elements.
13. Use of a noise reducing multi-dimensional coordinated control system according to any of the claims 1-12 in a modular telescopic device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210063690.XA CN114319095A (en) | 2022-01-20 | 2022-01-20 | Noise-reduction multi-dimensional linkage control system and application thereof in analog-digital expansion device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210063690.XA CN114319095A (en) | 2022-01-20 | 2022-01-20 | Noise-reduction multi-dimensional linkage control system and application thereof in analog-digital expansion device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11229325A (en) * | 1998-02-13 | 1999-08-24 | Sumitomo Metal Ind Ltd | Horizontal link type expansion device of bridge beam joint |
| WO2007009332A1 (en) * | 2005-07-19 | 2007-01-25 | Bin Xu | A bridge expansion joint device for resisting vertical dislocation |
| CN202220324U (en) * | 2011-09-29 | 2012-05-16 | 衡水橡胶股份有限公司 | Multidirectional displacement modulus type bridge telescopic device |
| CN106120549A (en) * | 2016-07-22 | 2016-11-16 | 安徽尚德科技有限公司 | A kind of big displacement quantity equal distance deflection bridge extension joint |
| CN205839580U (en) * | 2016-06-13 | 2016-12-28 | 同济大学 | Uniformly displacement drag-line modulus expansion joint |
-
2022
- 2022-01-20 CN CN202210063690.XA patent/CN114319095A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11229325A (en) * | 1998-02-13 | 1999-08-24 | Sumitomo Metal Ind Ltd | Horizontal link type expansion device of bridge beam joint |
| WO2007009332A1 (en) * | 2005-07-19 | 2007-01-25 | Bin Xu | A bridge expansion joint device for resisting vertical dislocation |
| CN202220324U (en) * | 2011-09-29 | 2012-05-16 | 衡水橡胶股份有限公司 | Multidirectional displacement modulus type bridge telescopic device |
| CN205839580U (en) * | 2016-06-13 | 2016-12-28 | 同济大学 | Uniformly displacement drag-line modulus expansion joint |
| CN106120549A (en) * | 2016-07-22 | 2016-11-16 | 安徽尚德科技有限公司 | A kind of big displacement quantity equal distance deflection bridge extension joint |
Non-Patent Citations (2)
| Title |
|---|
| 罗建华: "《桥梁施工技术》", 31 August 2009, 西南交通大学出版社, pages: 37 - 38 * |
| 金孝权: "《建筑工程质量员继续教育培训课程》", 30 November 2014, 东南大学出版社, pages: 128 * |
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