CN113089453B - Inverted arch trestle capable of being adjusted freely - Google Patents
Inverted arch trestle capable of being adjusted freely Download PDFInfo
- Publication number
- CN113089453B CN113089453B CN202110380581.6A CN202110380581A CN113089453B CN 113089453 B CN113089453 B CN 113089453B CN 202110380581 A CN202110380581 A CN 202110380581A CN 113089453 B CN113089453 B CN 113089453B
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- trestle
- rack
- hydraulic cylinder
- controller
- sides
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/10—Travelling bridges, i.e. roller bridges; Sliding bridges; Rotary cylinder bridges, i.e. rotating about longitudinal axis to invert and raise the road
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
Abstract
The invention discloses an inverted arch trestle capable of being freely adjusted; the device comprises a rack, wherein a controller and two parallel trestle plates are arranged on the rack, supporting beams are arranged on two sides of the rack, and two sides of each trestle plate are respectively connected with the two supporting beams in a sliding manner through walking rollers; meanwhile, an adjusting motor and an adjusting screw rod which are connected with each other through power are further arranged on the rack, two sides of the adjusting screw rod are connected with two trestle plates through screw threads which are opposite in rotating direction, a first jacking hydraulic cylinder and a second jacking hydraulic cylinder are further arranged on the cross beam and the rack, the adjusting screw rod is driven to rotate through the adjusting motor during use, and the adjusting screw rod is connected with the screw threads of the two trestle plates.
Description
Technical Field
The invention relates to the technical field of tunnel construction equipment, in particular to an inverted arch trestle capable of being freely adjusted.
Background
The inverted arch is a reverse arch structure arranged at the bottom of the tunnel for improving the stress condition of an upper supporting structure, is one of main components of the tunnel structure, and is used for effectively transmitting the pressure of the stratum at the upper part of the tunnel to the ground through a side wall structure of the tunnel or the load on the road surface and also effectively resisting the counter force transmitted from the stratum at the lower part of the tunnel. The inverted arch and the secondary lining form a whole tunnel, so that the structural stability is improved.
The inverted arch interferes with other processes during construction, and therefore, the inverted arch trestle needs to be used in conjunction with the inverted arch construction. The use of invert trestle can reduce the face and excavate the interference between construction transportation and the invert construction, and the frock utensil that the face was under construction can be followed the trestle and passed through, does not influence the construction of the invert of trestle lower part, and provides the line production working face for the invert construction, has improved the efficiency of construction.
However, in the prior art, the trestle plate on the inverted arch trestle generally adopts a fixed structure, the width of the trestle plate is limited, and the wheel tracks of different engineering vehicles are different, so that the condition that tires are suspended possibly occurs when a part of large vehicles pass through the trestle plate, and a great potential safety hazard exists.
Disclosure of Invention
Aiming at the defect that the space between trestles is not adjustable in the prior art, the invention discloses an inverted arch trestle which can be freely adjusted, and the invention can be adopted to randomly adjust the space between two trestle plates according to the type of a vehicle, thereby ensuring the safe passing of the vehicle and the safe operation of equipment; meanwhile, the structure is simple, and the adjustment is convenient.
The invention realizes the purpose through the following technical scheme:
a freely adjustable inverted arch trestle comprises a rack, wherein a controller and two parallel trestle plates are arranged on the rack, supporting beams are arranged on two sides of the rack, and two sides of the two trestle plates are respectively connected with the supporting beams in a sliding manner through walking rollers; the rack is also provided with an adjusting motor and an adjusting screw rod which are connected with each other through power, two sides of the adjusting screw rod are respectively connected with the screw threads of the two trestle plates through screw threads with opposite rotating directions, and the adjusting motor is connected with the controller; the frame middle part still is provided with the crossbeam, is provided with first shore hydraulic cylinder on the crossbeam, the both sides of frame still are provided with the second shore hydraulic cylinder that is used for shoring the side of stack bridge plate.
Preferably, the supporting beam is provided with a limiting groove matched with the walking roller.
Preferably, still rotate in the frame and be provided with two with adjust the parallel supplementary lead screws of lead screw, supplementary lead screw links to each other through drive chain power with adjusting between the lead screw, supplementary lead screw links to each other with two trestle board screw threads respectively through the connecting thread that turns to opposite.
Preferably, first shore the pneumatic cylinder and be the double-end pneumatic cylinder, the second shore the pneumatic cylinder and be the single-end pneumatic cylinder, all be provided with the grip block on first shore the pneumatic cylinder and the second shore the pneumatic cylinder.
Preferably, travel switches for controlling the travel of the trestle plates are arranged on two sides of the frame and are connected with the controller.
Preferably, an infrared sensor and a reflecting plate which are matched with each other are further arranged between the two trestle plates, and the infrared sensor is connected with the controller.
Preferably, the controller comprises a PLC controller and a touch screen, and the touch screen is connected to the PLC controller through 495 bus communication.
Compared with the prior art, the invention has the following beneficial effects:
1. the device comprises a rack, wherein a controller and two parallel trestle plates are arranged on the rack, supporting beams are arranged on two sides of the rack, and two sides of each trestle plate are respectively connected with the two supporting beams in a sliding manner through walking rollers; meanwhile, the frame is also provided with an adjusting motor and an adjusting screw rod which are connected by power, two sides of the adjusting screw rod are connected with two bridge decks by screw threads with opposite rotating directions, and the cross beam and the frame are also provided with a first top support hydraulic cylinder and a second top support hydraulic cylinder,
when the adjusting screw is used, the adjusting motor drives the adjusting screw to rotate, and the adjusting screw is connected with the screw threads of the two trestle plates, so that the distance between the two trestle plates can be changed by changing the rotating direction of the adjusting screw, and meanwhile, the adjustment of the adjusting screw is not limited, so that the adjusting requirement of a construction site is met to the maximum extent, the safe passing of various vehicle types is ensured, and the safe construction of a tunnel is ensured;
meanwhile, the invention has simple structure and convenient operation, and can effectively ensure the reliability and stability of the operation of the whole set of equipment.
2. The support beam is also provided with a limit groove matched with the walking roller, the movable range of the two stacked bridge plates is limited by the limit groove, the stacked bridge plates are prevented from being separated from the rack, and the stable work of the equipment is ensured.
3. The invention is also provided with two auxiliary screw rods on the frame, the auxiliary screw rods are parallel to the adjusting screw rods, the adjusting screw rods are connected with the auxiliary screw rods through transmission chains, and the auxiliary screw rods are respectively connected with the two bridge decks through connecting threads with opposite turning directions; on one hand, the three lifting rods are simultaneously connected with the two trestle plates, so that the time acting force on the trestle plates from all directions can ensure the synchronous motion of all parts of the trestle, further the trestle plates are prevented from being clamped obliquely outwards, the motion resistance is reduced, and the adjustment is more accurate; on the other hand, the lead screw can provide certain support for the trestle plate, and the bearing capacity of the trestle plate is ensured.
4. The first jacking hydraulic cylinder is a double-head hydraulic cylinder, the second jacking hydraulic cylinder is a single-head hydraulic cylinder, the first jacking hydraulic cylinder and the second jacking hydraulic cylinder are both provided with the clamping plates, the hydraulic cylinders are easy and convenient to operate, and can stably support the well-adjusted trestle plates so as to limit the positions of the trestle plates, so that the trestle plates are prevented from sliding due to impact force in the driving process of a vehicle, the stability and the safety of the trestle are improved, the load of an adjusting screw can be reduced, and the service life of the trestle is prolonged.
5. Travel switches are arranged on two sides of the rack, and an infrared sensor and a reflecting plate which are matched with each other are arranged at the same time, and the distance between the trestle plates is monitored through the infrared sensor and the reflecting plate, so that the distance between the trestle plates is accurately controlled, and a foundation is provided for automatic adjustment; and the travel switch is used for monitoring the limit position of the operation of the trestle, so that the condition that the regulating motor is stopped is ensured, and overload is avoided, thereby improving the safety and reliability of the operation of the whole set of equipment.
6. The controller comprises the PLC and the touch screen, the touch screen is in communication connection with the PLC through the 495 bus, and workers can conveniently set various adjusting parameters through the touch screen, so that the automatic adjustment of the space between the trestles is realized, and the working efficiency is improved.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic front view of the present invention;
fig. 4 is a schematic top view of embodiment 2 of the present invention;
reference numerals: 1. the device comprises a rack, 2, a controller, 3, a bridge plate, 4, a supporting beam, 5, a walking roller, 6, an adjusting motor, 7, an adjusting screw rod, 8, a beam, 9, a first jacking hydraulic cylinder, 10, a second jacking hydraulic cylinder, 11, a limiting groove, 12, an auxiliary screw rod, 13, a transmission chain, 14, a travel switch, 15, an infrared sensor, 16, a reflecting plate, 21, a PLC (programmable logic controller), 22 and a touch screen.
Detailed Description
The present invention will be further described with reference to the following description and examples, which include but are not limited to the following embodiments.
The embodiment is taken as a basic embodiment of the invention and discloses a freely adjustable inverted arch trestle, which has a specific structure as shown in fig. 1 to 3 and comprises a frame 1, wherein a controller 2 and two parallel trestle plates 3 are arranged on the frame 1, supporting beams 4 are arranged on two sides of the frame 1, two sides of the two trestle plates 3 are respectively connected with the supporting beams 4 in a sliding manner through walking rollers 5, and limiting grooves 11 matched with the walking rollers 5 are arranged on the supporting beams 4; the middle part of the rack 1 is also provided with an adjusting motor 6 and an adjusting screw 7, the adjusting motor 6 is in power connection with the adjusting screw 7 through a coupler, the controller 2 comprises a PLC (programmable logic controller) 21 and a touch screen 22, the touch screen 22 is in communication connection with the PLC 21 through a 495 bus, and the adjusting motor 6 is connected with the PLC 21;
the adjusting screw 7 is rotatably arranged on the rack 1 through a rolling bearing, and the left side and the right side of the adjusting screw are provided with connecting threads with opposite rotating directions and are connected with the two stacked bridge plates 3 through two connecting threads in a threaded manner; the middle part of the rack 1 is also provided with a cross beam 8, a first jacking hydraulic cylinder 9 is fixedly arranged on the cross beam 8, a plurality of second jacking hydraulic cylinders 10 are arranged on two side surfaces of the rack 1, the first jacking hydraulic cylinder 9 adopts a double-head hydraulic cylinder, the second jacking hydraulic cylinder 10 is a single-head hydraulic cylinder, and meanwhile, the rack 1 is also provided with an operating rod for controlling the first jacking hydraulic cylinder 9 and the second jacking hydraulic cylinder 10; and the telescopic rods of the first jacking hydraulic cylinder 9 and the second jacking hydraulic cylinder 10 are also fixedly provided with clamping plates.
The embodiment is used as a basic embodiment of the invention, and discloses an inverted arch trestle capable of being freely adjusted, and the structure of the inverted arch trestle is shown in fig. 4, the inverted arch trestle comprises a rack 1, a controller 2 and two parallel trestle plates 3 are arranged on the rack 1, support beams 4 are arranged on two sides of the rack 1, the trestle plates 3 are connected with the support beams 4 in a sliding manner through walking rollers 5, an adjusting motor 6 and an adjusting screw 7 which are connected with each other are arranged at the central position of the rack 1, auxiliary screws 12 are also rotatably arranged on two sides of the adjusting screw 7, the adjusting screw 7 and the auxiliary screws 12 have the same structure, the adjusting screw 7 is in power connection with the auxiliary screws 12 through a transmission chain 13, and the auxiliary screws 12 are respectively in thread connection with the two trestle plates 3 through connecting threads with opposite rotating directions;
When the adjusting screw rod is used, the adjusting motor drives the adjusting screw rod to rotate, and the adjusting screw rod is connected with the threads of the two trestle plates, so that the distance between the two trestle plates can be changed by changing the rotating direction of the adjusting screw rod, and meanwhile, the adjustment of the adjusting screw rod is not limited, the adjusting requirement of a construction site is met to the maximum extent, the safe passing of various vehicle types is ensured, and the safe construction of a tunnel is ensured;
meanwhile, the invention has simple structure and convenient operation, and can effectively ensure the reliability and stability of the operation of the whole set of equipment.
Claims (3)
1. The utility model provides an invert trestle that can freely adjust, includes frame (1), is provided with controller (2) and two trestle boards (3) that are parallel to each other on frame (1), its characterized in that: supporting beams (4) are arranged on two sides of the rack (1), and two sides of the two trestle plates (3) are respectively connected with the supporting beams (4) in a sliding manner through walking rollers (5); the rack (1) is also provided with an adjusting motor (6) and an adjusting screw rod (7) which are connected with each other through power, two sides of the adjusting screw rod (7) are respectively connected with the two stacked bridge plates (3) through threads with opposite rotating directions in a threaded manner, and the adjusting motor (6) is connected with the controller (2); a cross beam (8) is further arranged in the middle of the rack (1), a first jacking hydraulic cylinder (9) is arranged on the cross beam (8), and second jacking hydraulic cylinders (10) for jacking the side surfaces of the trestle bridge plates (3) are further arranged on two sides of the rack (1);
a limiting groove (11) matched with the walking roller (5) is formed in the supporting beam (4);
the rack (1) is also rotatably provided with two auxiliary screw rods (12) parallel to the adjusting screw rods (7), the auxiliary screw rods (12) are in power connection with the adjusting screw rods (7) through transmission chains (13), and the auxiliary screw rods (12) are in threaded connection with the two stacked bridge plates (3) through connecting threads with opposite rotation directions;
the first jacking hydraulic cylinder (9) is a double-head hydraulic cylinder, the second jacking hydraulic cylinder (10) is a single-head hydraulic cylinder, and clamping plates are arranged on the first jacking hydraulic cylinder (9) and the second jacking hydraulic cylinder (10);
and an infrared sensor (15) and a reflecting plate (16) which are matched with each other are also arranged between the two bridge decks (3), and the infrared sensor (15) is connected with the controller (2).
2. The freely adjustable invert trestle of claim 1, wherein: travel switches (14) used for controlling the travel of the bridge plate (3) are arranged on two sides of the rack (1), and the travel switches (14) are connected with the controller (2).
3. The freely adjustable invert trestle of claim 1, wherein: the controller (2) comprises a PLC (programmable logic controller) controller (21) and a touch screen (22), and the touch screen (22) is in communication connection with the PLC controller (21) through a 495 bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110380581.6A CN113089453B (en) | 2021-04-09 | 2021-04-09 | Inverted arch trestle capable of being adjusted freely |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110380581.6A CN113089453B (en) | 2021-04-09 | 2021-04-09 | Inverted arch trestle capable of being adjusted freely |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113089453A CN113089453A (en) | 2021-07-09 |
| CN113089453B true CN113089453B (en) | 2022-12-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110380581.6A Active CN113089453B (en) | 2021-04-09 | 2021-04-09 | Inverted arch trestle capable of being adjusted freely |
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| CN (1) | CN113089453B (en) |
Citations (10)
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|---|---|---|---|---|
| RU2102555C1 (en) * | 1996-04-02 | 1998-01-20 | Конструкторское бюро транспортного машиностроения | Bridge-laying machine |
| RU2212488C2 (en) * | 2001-09-20 | 2003-09-20 | 15 Центральный научно-исследовательский испытательный институт МО РФ им. Д.М. Карбышева | Unified bridge complex |
| CN201574349U (en) * | 2010-01-08 | 2010-09-08 | 余波 | Low pressure grounding trestle |
| CN103821077A (en) * | 2012-11-19 | 2014-05-28 | 天津海德天润海上工程技术有限公司 | Auto-telescoping trestle bridge applicable to movable platforms |
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| CN209211247U (en) * | 2018-11-01 | 2019-08-06 | 中铁十五局集团有限公司 | A kind of translating device of mobile inverted arch trestle |
| CN110778339A (en) * | 2019-11-29 | 2020-02-11 | 湖南五新模板有限公司 | Self-propelled hydraulic inverted arch trestle hydraulic automatic balancing system |
| CN211777452U (en) * | 2020-03-16 | 2020-10-27 | 中铁十八局集团有限公司 | Collapsible invert landing stage suitable for tunnel invert construction |
| CN211815501U (en) * | 2020-02-27 | 2020-10-30 | 中国铁建大桥工程局集团有限公司 | Self-moving trestle |
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| DE956686C (en) * | 1944-01-16 | 1957-01-24 | Augsburg Nuernberg A G Zweigni | Ferries, especially for railways |
| JPH0853941A (en) * | 1994-08-12 | 1996-02-27 | Taisei Corp | Construction work method of unit floor |
| DE19724575C1 (en) * | 1997-06-11 | 1999-04-15 | Man Technologie Gmbh | Modular frame for railway track bridge |
| CN108049303B (en) * | 2017-12-19 | 2023-12-15 | 成都锐龙机械制造有限公司 | Driving rear trestle, mounting method and adjusting method |
| CN110778338A (en) * | 2019-11-29 | 2020-02-11 | 湖南五新模板有限公司 | Self-propelled hydraulic pressure invert landing stage operation face width adjusting device |
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2021
- 2021-04-09 CN CN202110380581.6A patent/CN113089453B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2102555C1 (en) * | 1996-04-02 | 1998-01-20 | Конструкторское бюро транспортного машиностроения | Bridge-laying machine |
| RU2212488C2 (en) * | 2001-09-20 | 2003-09-20 | 15 Центральный научно-исследовательский испытательный институт МО РФ им. Д.М. Карбышева | Unified bridge complex |
| CN201574349U (en) * | 2010-01-08 | 2010-09-08 | 余波 | Low pressure grounding trestle |
| CN103821077A (en) * | 2012-11-19 | 2014-05-28 | 天津海德天润海上工程技术有限公司 | Auto-telescoping trestle bridge applicable to movable platforms |
| CN104499416A (en) * | 2014-11-24 | 2015-04-08 | 中铁隧道集团隧道设备制造有限公司 | Full-hydraulic crawler-type self-moving trestle |
| CN206722852U (en) * | 2017-05-05 | 2017-12-08 | 中铁十二局集团有限公司 | A kind of mobile inverted arch trestle of growing up for carrying inverted arch template |
| CN209211247U (en) * | 2018-11-01 | 2019-08-06 | 中铁十五局集团有限公司 | A kind of translating device of mobile inverted arch trestle |
| CN110778339A (en) * | 2019-11-29 | 2020-02-11 | 湖南五新模板有限公司 | Self-propelled hydraulic inverted arch trestle hydraulic automatic balancing system |
| CN211815501U (en) * | 2020-02-27 | 2020-10-30 | 中国铁建大桥工程局集团有限公司 | Self-moving trestle |
| CN211777452U (en) * | 2020-03-16 | 2020-10-27 | 中铁十八局集团有限公司 | Collapsible invert landing stage suitable for tunnel invert construction |
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| CN113089453A (en) | 2021-07-09 |
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