CN107476182B - Automatic second-stage springboard overturning mechanism with locking device - Google Patents
Automatic second-stage springboard overturning mechanism with locking device Download PDFInfo
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- CN107476182B CN107476182B CN201710519677.XA CN201710519677A CN107476182B CN 107476182 B CN107476182 B CN 107476182B CN 201710519677 A CN201710519677 A CN 201710519677A CN 107476182 B CN107476182 B CN 107476182B
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- springboard
- oil cylinder
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- connecting rod
- rod
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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
- E01D15/12—Portable or sectional bridges
- E01D15/127—Portable or sectional bridges combined with ground-supported vehicles for the transport, handling or placing of such bridges or of sections thereof
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Abstract
The invention discloses a two-stage springboard turnover mechanism with a locking device, which can reliably realize automatic turnover of a large springboard and a small springboard and turnover locking of the large springboard. The turnover mechanism comprises a large springboard turnover mechanism, a locking device of the large springboard turnover mechanism and a small springboard turnover mechanism; in the process of turning and unfolding, the small springboard is automatically turned in place through the small springboard turning mechanism, and then the springboard is unfolded and turned through the large springboard turning mechanism under the unlocking state of the locking device; when the large springboard needs to be fixed when being overturned at a certain angle, the overturning oil cylinder stops moving, the locking device is operated to be in a locking state, and locking and fixing of the large springboard are achieved.
Description
Technical Field
The invention relates to an automatic turnover mechanism, in particular to a two-stage turnover mechanism with a locking device.
Background
The two shore ends of the crawler self-propelled pontoon bridge are usually provided with shore-connecting gangplank, and the gangplank is a two-stage gangplank generally and comprises a first-stage gangplank (hereinafter referred to as a large gangplank) and a second-stage gangplank (hereinafter referred to as a small gangplank), wherein one end of the large gangplank is hinged with the end of the box body of the crawler self-propelled pontoon bridge, and the other end of the large gangplank is hinged with the small gangplank. The large springboard turnover mechanism can turn over the large springboard away from the crawler self-propelled pontoon bridge box body to a specified position (or withdraw the large springboard to the specified position on the crawler self-propelled pontoon bridge box body); the small springboard is turned away from the big springboard to a designated position (or is manually retracted to the designated position on the big springboard) through manual turning.
The large springboard is required to be turned at a certain angle and fixed in operation, other operations are carried out, a hydraulic turning system is usually adopted for turning the large springboard at present, turning locking of the large springboard is achieved through internal valve members of the hydraulic system, the large springboard is not high in reliability though having a locking function, and the large springboard is prone to being turned over accidentally to cause damage to personnel and equipment due to locking failure of the large springboard. And the small springboard adopts a manual overturning operation mode, so that the operation process is low in control degree and low in efficiency.
Disclosure of Invention
In view of this, the present invention provides a two-stage springboard automatic turning mechanism with a locking device, which can reliably realize automatic turning of a large springboard and a small springboard and turning locking of the large springboard, and ensure automation and safety of the springboard turning operation.
The technical scheme of the invention is as follows:
the utility model provides an automatic tilting mechanism of second grade springboard of area locking device, includes: the first-stage springboard turnover mechanism and the second-stage springboard turnover mechanism; the locking device is used for locking the position of the first-stage springboard;
the first-level springboard turnover mechanism comprises: a first turnover oil cylinder and a connecting rod; an oil cylinder push-pull rod is arranged at the end part of the first overturning oil cylinder; one end of the connecting rod is hinged with the oil cylinder push-pull rod, and the other end of the connecting rod is hinged with a connecting rod support on the springboard; a rack is arranged on the outer circumferential surface of the oil cylinder push-pull rod;
the locking device includes: the locking mechanism comprises a support, a locking nut and a power mechanism for driving the locking nut to rotate; the locking nut is coaxial with the oil cylinder push-pull rod, is arranged in the positioning groove of the support and can rotate in the positioning groove of the support along the axial direction of the positioning groove; the inner circumferential surface of the locking nut is provided with inner teeth, the oil cylinder push-pull rod penetrates through the locking nut, and when the locking nut is driven by the power mechanism to rotate until the inner teeth correspond to the rack in position, the inner teeth and the rack are meshed to lock the oil cylinder push-pull rod;
second grade springboard tilting mechanism includes: the second turnover oil cylinder, the straight connecting rod and the curved connecting rod; the end part of the second overturning oil cylinder is hinged with a second oil cylinder seat fixed on the large springboard; one ends of the curved connecting rod and the two straight connecting rods are hinged with a piston rod of the second turnover oil cylinder respectively, the other end of the curved connecting rod is hinged with a curved connecting rod seat fixed on the large springboard, the other ends of the two straight connecting rods are hinged with two straight connecting rod seats fixed in the middle of the small springboard respectively, and the end part of the small springboard is hinged with the end part of the end connected with the large springboard.
As a preferred mode of the present invention, a locking identification rod is disposed in the locking device, the locking identification rod is connected to the locking nut through a connecting plate, and a locking position identification is disposed on the locking identification rod.
As a preferred mode of the invention, the power mechanism for driving the locking nut to rotate is a locking oil cylinder; the locking nut is hinged with a piston rod of the locking oil cylinder through a connecting plate, so that the locking oil cylinder drives the locking nut to rotate in the positioning groove of the support along the axial direction of the positioning groove.
As a preferred mode of the invention, the first-stage springboard turnover mechanism is also provided with a guide roller and a guide groove for guiding; the guide roller is arranged on the oil cylinder push-pull rod, and the guide groove is arranged in the moving direction of the guide roller; when the first overturning oil cylinder works, the oil cylinder push-pull rod makes linear motion along the guide groove through the guide roller. Advantageous effects
(1) The turnover mechanism realizes automatic turnover of the second-level springboard, changes the operation modes of automatic turnover of a large springboard and manual turnover of a small springboard in the prior art, and has high operation process control degree, low labor intensity and high efficiency.
(2) The locking device is arranged in the large springboard turnover mechanism, so that the locking reliability of the large springboard is improved, and the safety is high.
Drawings
FIG. 1 is a schematic overall structure diagram of a secondary springboard turnover mechanism with a locking device of the invention;
FIG. 2 is a schematic structural view of a small springboard turnover mechanism in the invention;
FIG. 3 is a schematic view of a large gangway turnover cylinder according to the present invention;
FIG. 4 is a schematic view of the operation of locking the large springboard in the present invention;
fig. 5 is a schematic view of the operation process of the two-stage springboard turnover mechanism with the locking device of the present invention.
Wherein: 1-a first oil cylinder seat, 2-a first overturning oil cylinder A, 3-a locking device, 4-an oil cylinder push-pull rod, 5-a connecting rod, 6-a second oil cylinder seat, 7-a second overturning oil cylinder, 8-a straight connecting rod seat, 9-a straight connecting rod, 10-a curved connecting rod seat, 11-a curved connecting rod, 12-a guide roller, 13-a locking oil cylinder, 14-a locking identification rod, 15-a locking nut, 16-a support
Detailed Description
The invention is further illustrated by the following figures and examples.
The embodiment provides a second grade springboard tilting mechanism that is used for taking locking device of track boat bridge by oneself, can reliably realize the automatic upset of big or small springboard and the upset locking of big springboard.
The two-stage springboard turnover mechanism comprises a large springboard turnover mechanism, a locking device of the large springboard turnover mechanism and a small springboard turnover mechanism.
As shown in fig. 1 and 2, the large springboard turnover mechanism comprises: the device comprises a first oil cylinder base 1, a first overturning oil cylinder 2, an oil cylinder push-pull rod 4 and a connecting rod 5; the first oil cylinder seat 1 is welded in the crawler self-propelled pontoon bridge box body and is connected with a connecting hole at the tail part of the first overturning oil cylinder 2 through a pin shaft. The head of the piston rod of the first overturning oil cylinder 2 is connected with an oil cylinder push-pull rod 4, two racks with certain length are symmetrically arranged on the circumferential surface of the oil cylinder push-pull rod 4 along the axial direction, and two groups of guide rollers 12 are arranged on the outer side of a connecting lug at the head of the oil cylinder push-pull rod 4. One end of the connecting rod 5 is hinged with the head of the oil cylinder push-pull rod 4, and the other end is hinged with a connecting rod support on the large springboard. Therefore, the oil cylinder push-pull rod 4 linearly moves in the guide groove in the pontoon bridge box body through the telescopic motion of the first overturning oil cylinder 2 (in the linear motion process, the guide roller 12 is matched with the guide groove to play a guide role), and then the large springboard is driven through the connecting rod 5, so that the automatic overturning operation of the large springboard is realized.
When the large springboard is turned to a certain angle and needs to be stopped and fixed in the operation process, the oil cylinder is stopped to stretch out and draw back, the locking device is operated, and the piston rod of the first turning oil cylinder 2 is locked, so that the piston rod cannot axially move, and the large springboard is firmly fixed at the angle.
The locking device 3, as shown in fig. 4, includes: the locking device comprises a locking nut 15, a locking oil cylinder 13, a locking identification rod 14 and a support 16. Wherein the support 16 is fixed in the self-propelled pontoon bridge box of track, and locking nut 15 is installed in the support 16 constant head tank, and locking nut 15 is coaxial with the piston rod of first upset hydro-cylinder 2, and its outer circumference can rotate along the axial in support 16 with the cooperation of support 16, for the card phenomenon of dying appears when preventing to rotate, processes its constant head tank into kidney slot, makes locking nut 15 can squint from top to bottom in the constant head tank and carries out self-adaptation regulation. Two symmetrical inner teeth are axially arranged on the inner circumference of the locking nut 15, the oil cylinder push-pull rod 4 penetrates through the locking nut 15, and when the rack on the oil cylinder push-pull rod 4 corresponds to the inner teeth in the locking nut 15 in position, the rack is meshed together, so that the purpose of locking the piston rod of the first overturning oil cylinder 2 is achieved. Two connecting plates are arranged on the outer circumference of the locking nut 15, one connecting plate is hinged with the locking oil cylinder 13, when a piston rod of the locking oil cylinder 13 moves, the connecting plate drives the locking nut 15 to rotate in a positioning groove of the support 16 along the axial direction of the locking nut, so that internal teeth in the locking nut 15 are meshed with and separated from a rack of the oil cylinder push-pull rod 4, and the locking and unlocking of the position of the springboard are realized. The other connecting plate is connected with a locking mark rod 14, a locking position mark is arranged on the locking mark rod 14, and when the locking nut 15 rotates, the locking mark rod 14 is driven to move up and down, so that whether the locking device 3 is locked or not is judged. The locking oil cylinder 13 is fixed in the crawler self-propelled pontoon bridge box body through a hinged support.
As shown in fig. 1 and 3, the small-jumper turnover mechanism includes: a second oil cylinder seat 6, a second overturn oil cylinder 7, a straight connecting rod seat 8, a straight connecting rod 9, a curved connecting rod seat 10 and a curved connecting rod 11. The second oil cylinder base 6 is a double-lug base, the bottom of the second oil cylinder base is connected with a large springboard welding machine, and the end part of the second overturning oil cylinder 7 is hinged with the second oil cylinder base 6 through a bolt; the front end of a piston rod of the second overturning oil cylinder 7 is a double-lug head, one end of a curved connecting rod 11 is hinged between the double-lug head, and the other end of the curved connecting rod is hinged with a curved connecting rod seat 10 fixed on the large springboard; one end of each of the two straight connecting rods 9 is hinged with a double lug head at the front end of a piston rod of the second turnover oil cylinder 7, the other end of each of the two straight connecting rods is hinged with two straight connecting rod seats 8 fixed in the middle of the small springboard, and the end part of the small springboard is hinged with the end part of the end connected with the large springboard. The three-lug seat welded on the small springboard can respectively realize the hinging with the two straight connecting rods 9 and the large springboard; the double-lug head of the piston rod, the curved connecting rod 11 and the two straight connecting rods 9 are hinged through a bolt. When the second turnover oil cylinder 7 stretches, the link mechanism consisting of the straight link 9 and the curved link 11 is driven to move, and the small springboard is unfolded on the large springboard.
As shown in fig. 5, the springboard unfolding process of the two-stage springboard turnover mechanism is as follows: initially, the large springboard and the small springboard are both in a folded state, and the small springboard is folded above the large springboard. When the large springboard turnover mechanism needs to be unfolded, the locking oil cylinder 13 is firstly operated to move, so that the internal teeth of the locking nut 15 and the rack of the oil cylinder push-pull rod 4 are in an open state (namely, are not meshed), namely, the piston rod of the first turnover oil cylinder 2 in the large springboard turnover mechanism is ensured to be in an unlocked state. And then the second turnover oil cylinder 7 is operated to enable a piston rod of the second turnover oil cylinder to move towards the outside of the cylinder body, so that the curved connecting rod 11 and the straight connecting rod 9 are driven to move to enable the small springboard to be opened and turned until the small springboard is completely opened. In the process of opening and turning the small springboard, the small springboard is firstly turned upwards from a horizontal state to a vertical state and then is unfolded outwards to a horizontal state which is in the same horizontal plane with the large springboard. After the small springboard is completely opened, the first overturning oil cylinder 2 is operated to enable a piston rod of the first overturning oil cylinder to drive an oil cylinder push-pull rod 4 to move towards the cylinder body, the first overturning oil cylinder linearly moves in a guide groove through a head guide roller 12, and in the moving process, the connecting rod 5 is firstly driven to rotate around a pin joint end of the connecting rod and the oil cylinder push-pull rod 4, so that the large springboard is overturned to be in a vertical state; then the piston rod of the first overturning oil cylinder 2 continues to move into the cylinder body of the first overturning oil cylinder, and the big springboard is driven to rotate around a hinged joint of the big springboard and the end part of the pontoon bridge box body through the connecting rod 5, so that the big springboard is unfolded and overturned. When the large springboard is required to be fixed when being overturned at a certain angle, the first overturning oil cylinder 2 is stopped to move, and the locking oil cylinder 13 is controlled to move to enable the inner teeth of the locking nut 15 and the rack on the oil cylinder push-pull rod 4 to be in a combined state (namely the inner teeth are meshed with the rack), so that locking and fixing of the large springboard are realized, and the large springboard is firmly fixed at the angle. The springboard withdrawing operation process is opposite to the unfolding process.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (2)
1. The utility model provides an automatic tilting mechanism of second grade springboard of area locking device, includes: the first-stage springboard turnover mechanism and the second-stage springboard turnover mechanism; the device is characterized by also comprising a locking device (3) for locking the position of the first-stage springboard;
the first-level springboard turnover mechanism comprises: a first overturning oil cylinder (2) and a connecting rod (5); an oil cylinder push-pull rod (4) is arranged at the end part of the first overturning oil cylinder (2); one end of the connecting rod (5) is hinged with the oil cylinder push-pull rod (4), and the other end of the connecting rod is hinged with a connecting rod support on the springboard; two axially symmetrical racks are arranged on the outer circumferential surface of the oil cylinder push-pull rod (4);
the locking device (3) comprises: the locking device comprises a support (16), a locking nut (15) and a power mechanism for driving the locking nut (15) to rotate; the locking nut (15) is coaxial with the oil cylinder push-pull rod (4), and the locking nut (15) is arranged in a positioning groove of the support (16) and can rotate in the positioning groove of the support (16) along the axial direction of the positioning groove; two axially symmetrical inner teeth are arranged on the inner circumferential surface of the locking nut (15), the oil cylinder push-pull rod (4) penetrates through the locking nut (15), and when the locking nut (15) is driven by the power mechanism to rotate until the inner teeth correspond to the rack in position, the inner teeth and the rack are meshed to lock the oil cylinder push-pull rod (4);
second grade springboard tilting mechanism includes: a second turnover oil cylinder (7), a straight connecting rod (9) and a curved connecting rod (11); the end part of the second overturning oil cylinder (7) is hinged with a second oil cylinder seat (6) fixed on the large springboard; one ends of the curved connecting rod (11) and the two straight connecting rods (9) are respectively hinged with a piston rod of the second turnover oil cylinder (7), the other end of the curved connecting rod (11) is hinged with a curved connecting rod seat (10) fixed on the large springboard, the other ends of the two straight connecting rods (9) are respectively hinged with two straight connecting rod seats (8) fixed in the middle of the small springboard, and the end part of the small springboard is hinged with the end part of the end connected with the large springboard;
the power mechanism for driving the locking nut (15) to rotate is used for locking the oil cylinder (13); the locking nut (15) is hinged with a piston rod of the locking oil cylinder (13) through a connecting plate, so that the locking oil cylinder (13) drives the locking nut (15) to rotate in a positioning groove of the support (16) along the axial direction of the positioning groove;
a locking identification rod (14) is arranged in the locking device (3), the locking identification rod (14) is connected with the locking nut (15) through a connecting plate, and a locking position identification is arranged on the locking identification rod (14);
the first-stage springboard turnover mechanism is also provided with a guide roller (12) and a guide groove for guiding; the guide roller (12) is arranged on the oil cylinder push-pull rod (4), and the guide groove is arranged in the moving direction of the guide roller (12); when the first overturning oil cylinder (2) works, the oil cylinder push-pull rod (4) makes linear motion along the guide groove through the guide roller (12);
when the large springboard is turned to a certain angle and needs to be stopped and fixed in the operation process, the oil cylinder is stopped from stretching, the locking device is operated, and the piston rod of the first turning oil cylinder (2) is locked so as not to axially move and firmly fix the large springboard at the angle;
when the second turnover oil cylinder (7) stretches, a connecting rod mechanism consisting of a straight connecting rod (9) and a curved connecting rod (11) is driven to move, and the small springboard is unfolded on the large springboard.
2. The automatic turning mechanism of the secondary springboard with the locking device of claim 1, wherein: the positioning groove used for installing the locking nut (15) on the support (16) is a kidney-shaped groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710519677.XA CN107476182B (en) | 2017-06-30 | 2017-06-30 | Automatic second-stage springboard overturning mechanism with locking device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710519677.XA CN107476182B (en) | 2017-06-30 | 2017-06-30 | Automatic second-stage springboard overturning mechanism with locking device |
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| CN107476182A CN107476182A (en) | 2017-12-15 |
| CN107476182B true CN107476182B (en) | 2020-10-20 |
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| CN201710519677.XA Active CN107476182B (en) | 2017-06-30 | 2017-06-30 | Automatic second-stage springboard overturning mechanism with locking device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111041974B (en) * | 2020-01-14 | 2021-01-29 | 安徽水安建设集团股份有限公司 | Lap joint bridge for water conservancy ditch |
| CN112682452B (en) * | 2020-12-15 | 2022-03-18 | 中铁武汉大桥工程咨询监理有限公司 | Built-in locking type multifunctional adjustable damper and bridge structure |
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| CN2609964Y (en) * | 2003-04-18 | 2004-04-07 | 中国人民解放军63983部队 | Drawboard lifting device |
| CN201784151U (en) * | 2010-09-07 | 2011-04-06 | 宁波新海太塑料机械有限公司 | Die locking device of two-plate pull rod telescopic injection-molding machine |
| CN103203621A (en) * | 2013-03-21 | 2013-07-17 | 浙江正裕工业股份有限公司 | Automobile shock absorber piston rod locking device |
| CN204036784U (en) * | 2014-07-10 | 2014-12-24 | 宁波新海太塑料机械有限公司 | A kind of two plate clamping apparatus |
| CN105603864A (en) * | 2015-12-29 | 2016-05-25 | 湖北华舟重工应急装备股份有限公司 | Bridge deploying mechanism for mechanical bridge |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ATE281921T1 (en) * | 2000-05-23 | 2004-11-15 | Bosch Rexroth Ag | INJECTION UNIT FOR A PLASTIC INJECTION MOLDING MACHINE |
| CN106544951A (en) * | 2016-10-18 | 2017-03-29 | 湖北华舟重工应急装备股份有限公司 | A kind of crawler belt vehicular mechanization obstacle detouring passage |
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2017
- 2017-06-30 CN CN201710519677.XA patent/CN107476182B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2609964Y (en) * | 2003-04-18 | 2004-04-07 | 中国人民解放军63983部队 | Drawboard lifting device |
| CN201784151U (en) * | 2010-09-07 | 2011-04-06 | 宁波新海太塑料机械有限公司 | Die locking device of two-plate pull rod telescopic injection-molding machine |
| CN103203621A (en) * | 2013-03-21 | 2013-07-17 | 浙江正裕工业股份有限公司 | Automobile shock absorber piston rod locking device |
| CN204036784U (en) * | 2014-07-10 | 2014-12-24 | 宁波新海太塑料机械有限公司 | A kind of two plate clamping apparatus |
| CN105603864A (en) * | 2015-12-29 | 2016-05-25 | 湖北华舟重工应急装备股份有限公司 | Bridge deploying mechanism for mechanical bridge |
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| CN107476182A (en) | 2017-12-15 |
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