CN217266886U

CN217266886U - Bridge headstock gear of hidden slidable balancing weight

Info

Publication number: CN217266886U
Application number: CN202123406540.4U
Authority: CN
Inventors: 朱利明; 易晨阳; 魏涛涛
Original assignee: Nanjing University Of Technology Transportation Research Institute Chuzhou Co ltd
Current assignee: Nanjing University Of Technology Transportation Research Institute Chuzhou Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-08-23
Anticipated expiration: 2031-12-31

Abstract

The utility model discloses a bridge headstock gear of hidden slidable balancing weight, including slip balancing weight, screw rod support, motor, only lock subassembly, crossbeam and directional guide rail groove, the device mainly is applied to the draw bridge. When the bridge is opened, the motor drives the screw rod to rotate, so that the internal thread counterweight sliding block is driven to move towards the side span direction, the gravity center moves towards the side span position, additional bending moment is generated, and a maneuvering system formed by the cross beam, the flexible tether and the bridge deck moves. When the bridge is closed, the motor drives the screw rod to rotate, so that the internal thread counterweight sliding block is driven to move towards the midspan direction, the center of gravity moves towards the midspan position, and additional bending moment is generated to move a motorized system consisting of the cross beam, the flexible tether and the bridge deck.

Description

Bridge headstock gear of hidden slidable balancing weight

Technical Field

The utility model relates to a bridge technical field especially relates to a closing device is opened to bridge of hidden slidable balancing weight.

Background

The open bridge mainly refers to a bridge which is opened in modes of vertical rotation, horizontal rotation, lifting and the like in order to meet the requirements of both water transportation and land transportation. The Holland Amsterdam is characterized in that the landform is low, water nets in a city are staggered, various opening bridges are built in the Holland from the 17 th century for considering water and land transportation, the unique style of the Holland Amsterdam is formed, and the Holland painter Sanskrit is named after the opening and closing bridges of the Amsterdam created in 1883 above. The opening and closing suspension bridge has a maneuvering system consisting of the cross beam, the counterweight plate and the bridge deck, is just balanced under the dead weight, and the bridge overcomes the friction force in the opening process by applying smaller torque, thereby realizing the opening and closing.

In recent years, due to the aesthetic value of the opening and closing suspension bridge, a large number of opening and closing suspension bridges are built in various scenic spots and parks in China. The traditional suspension bridge has small span and low automation degree, and a full-time bridge manager generally opens and closes the suspension bridge, so that the bridge has high use cost; when the span of the power generator is further lifted, the power demand is increased due to the increased friction force and the inertia generated by the increased structural mass; the structure is out of control due to external forces such as wind load and the like easily applied in the opening and closing process. Therefore, an opening and closing suspension bridge opening device which has high automation degree and small power requirement, can accurately control the opening and closing postures and ensures the opening and closing safety is needed.

Disclosure of Invention

Defect and demand to prior art, the utility model provides a bridge opening device of hidden slidable balancing weight and application method thereof, the device and application method have not only can realize opening and shutting the automatic opening of draw bridge, and it is little to open process power demand, promotes the advantage of opening and shutting process safety etc..

In order to realize the technical purpose, the utility model adopts the technical scheme that:

a bridge opening and closing device of a hidden type slidable balancing weight comprises a cross beam, a sliding balancing weight, a screw rod support and a directional guide rail groove, wherein the cross beam is of a hollow structure, two ends of the cross beam are provided with cross beam end covers, a power supply wire groove and an inclination angle sensor are arranged in the cross beam, a power supply wire is led out through the power supply wire groove and is connected with a motor, the motor is arranged at one end close to a side span, a motor transmission shaft, a locking component and a motor-screw rod transmission component are sequentially connected, the locking component can lock the motor transmission shaft, the other end of the motor-screw rod transmission component is connected with the screw rod, the screw rod is sleeved with the sliding balancing weight, the center of the sliding balancing weight is provided with an internal thread matched with the screw rod, two sides of the sliding balancing weight are provided with sliding block wheels which can move in the directional guide rail groove, the directional guide rail groove is fixed on a cross beam longitudinal stiffening rib arranged in the same direction as the screw rod, the sliding balancing weight is driven to move back and forth in the directional guide rail groove when the screw rod rotates, the inside of the beam is also provided with a plurality of transverse beam transverse stiffening ribs for fixing, the screw rod is supported and fixed on any transverse beam transverse stiffening rib far away from the end of the motor and is used for supporting the other end of the screw rod,

the bridge column is provided with upright columns, the upright columns are fixed on the bridge column and a fixed bridge body through a plurality of rigid upright column inclined struts, a cross beam is arranged on the upright columns through a cross beam hinge, the cross beam is connected with a bridge deck through a flexible tether, the bridge deck is connected with the bridge column and the fixed bridge body through a bridge deck hinge, when the bridge is opened, a motor drives a screw rod to rotate, so that a sliding counterweight block is driven to move towards the side span direction, the gravity center moves towards the side span position, additional bending moment is generated, a motor system formed by the cross beam, a flexible tether and the bridge deck is driven to move, and the cross beam rotates upwards around the cross beam hinge and the bridge deck hinge; when the bridge is closed, the motor drives the screw rod to rotate, so that the sliding balancing weight is driven to move towards the midspan direction, the center of gravity moves towards the midspan position, additional bending moment is generated, a motorized system formed by the cross beam, the flexible tether and the bridge deck slab moves, and the cross beam rotates downwards around the cross beam hinge and the bridge deck slab rotates downwards around the bridge deck slab hinge.

On the basis of the above scheme, a further improved or preferred scheme further comprises:

further, the sliding weight is made of metal.

Furthermore, the sliding balancing weight is supported at the limit positions at the two ends by the motor-screw transmission assembly and the screw rod in the moving process, so that the sliding balancing weight cannot slide out of the screw rod and the directional guide rail groove.

Furthermore, the locking assembly releases the locking when the motor is started, and the locking assembly opens the locking when the motor is closed.

Furthermore, the beam hinge has a damping effect and can prevent the beam from rotating too fast, and the beam hinge also has a self-locking structure, so that when the beam reaches a target posture, the beam hinge is locked.

Furthermore, the locking assemblies are two in total, one is arranged at the transmission shaft of the motor, and the other is arranged at the tail part of the screw rod.

Furthermore, the beam end cover can be opened and closed, the beam can be overhauled by opening the beam end cover, and the components in the beam can be protected by closing the beam end cover.

The utility model provides a bridge headstock gear of hidden slidable balancing weight has following advantage:

1. the utility model can change the balance state of the opening and closing suspension bridge and realize the opening and closing of the suspension bridge; the utility model can reduce the power demand in the opening process of the suspension bridge and realize simple and safe opening; utilize the utility model discloses can promote the automation level that the in-process was opened to the suspension bridge that opens and shuts.

2. The crossbeam that this scheme provided sets up for cavity, and the sliding weight piece is hidden, various subassemblies in this scheme of protection that can be better in the use, increase of service life, the outward appearance is also more pleasing to the eye simultaneously.

Drawings

FIG. 1 is a longitudinal cross-sectional view of a cross beam embodying the present invention;

FIG. 2 is a cross-sectional view taken along line a-a of FIG. 1 in accordance with the present invention;

fig. 3 is a cross-sectional view taken along line b-b of fig. 2 in accordance with the present invention;

FIG. 4 is a detailed view of the prototype 1 of FIG. 2 according to the present invention;

FIG. 5 is a state diagram of the bridge during driving;

FIG. 6 is a state diagram of the bridge during sailing;

reference numerals: the device comprises a beam 1, a sliding balancing weight 2, a screw 3, a screw support 4, a directional guide rail groove 5, a beam end cover 6, a power supply wire groove 7, an inclination angle sensor 8, a motor 9, a motor drive shaft 10, a locking assembly 11, a motor screw drive assembly 12, a slider wheel 13, a beam longitudinal stiffening rib 14, a beam transverse stiffening rib 15, an upright post 16, a rigid upright post inclined strut 17, a beam hinge 18, a flexible tether 19, a bridge deck 20 and a bridge deck hinge 21.

Detailed Description

In order to clarify the technical solution and the working principle of the present invention, the present invention is described in detail with reference to the accompanying drawings and the specific embodiments.

As shown in fig. 1 and 2, the utility model provides a bridge headstock gear of hidden slidable balancing weight, including crossbeam 1, slip balancing weight 2, screw rod 3, screw rod support 4, directional guide rail groove 5, crossbeam end cover 6, power supply wire casing 7, inclination sensor 8, motor 9, motor drive shaft 10, locking subassembly 11, motor-screw drive subassembly 12, slider wheel 13, crossbeam vertical stiffening rib 14, the horizontal stiffening rib 15 of crossbeam.

In the manufacturing stage, the directional guide rail groove 5 and the power supply wire groove 7 are installed inside the crossbeam 1 in the manufacturing process of the crossbeam 1, in the installation stage, the sliding balancing weight 2 is firstly sleeved into the screw rod 3 by utilizing threads, then the screw rod support 4 in the middle of the screw rod 3 and the locking component 11 at the tail part are installed, the structure formed by the sliding balancing weight 2, the screw rod 3, the screw rod support 4 and the locking component 11 is installed on the crossbeam longitudinal stiffening rib 14 inside the crossbeam 1, and the locking component 11 at the tail part of the screw rod 3 is fixed inside the crossbeam 1. After that, the locking assembly 11, the motor-screw driving assembly 12 are installed to the motor driving shaft 10, and the assembly of the motor 9, the locking assembly 11, the motor-screw driving assembly 12 is connected to the screw 3 through the motor-screw driving assembly 12. And finally, installing the tilt angle sensor 8 on the cross beam 1, connecting various power supply and control wires, closing the cross beam end cover 6 and completing installation.

As shown in fig. 1, 3 and 5, the motor 9 rotates to drive the screw rod 3 to rotate, the sliding counterweight block 2 moves towards the midspan direction on the screw rod 3, the beam 1 rotates downwards around the beam hinge 18 and the bridge deck 20 rotates downwards around the bridge deck hinge 21 under the action of gravity, and when the inclination angle sensor 8 monitors that the beam 1 rotates to the position, the locking assembly 11 and the beam hinge 18 are unlocked and locked, so that the closing of the navigation channel is realized.

As shown in fig. 1, 4 and 6, the motor 9 rotates to drive the screw rod 3 to rotate, the sliding counterweight block 2 moves on the screw rod 3 in the side span direction, the beam 1 rotates upwards around the beam hinge 18 and the bridge deck 20 rotates upwards around the bridge deck hinge 21 under the action of gravity, and when the inclination angle sensor 8 monitors that the beam 1 rotates to the position, the locking assembly 11 and the beam hinge 18 are unlocked and locked, so that the opening of the navigation channel is realized.

The application method of the bridge opening and closing device with the hidden slidable balancing weight comprises the following steps:

step a: the locking state of the locking component 11 and the cross beam hinge 18 is released;

step b: starting the motor 9, driving the screw rod 3 to rotate by the motor 9, and moving the sliding balancing weight 2 on the screw rod 3;

step c: the posture of the beam 1 is mastered through the tilt angle sensor 8, and when the target posture is reached, the motor 9 is turned off;

step d: the unlocking locking assembly 11 and the beam hinge 18 are in a locked state.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A bridge opening and closing device of a hidden type slidable balancing weight comprises a cross beam (1), a sliding balancing weight (2), a screw rod (3), a screw rod support (4) and a directional guide rail groove (5), and is characterized in that the cross beam (1) is of a hollow structure, cross beam end covers (6) are arranged at two ends of the cross beam, a power supply wire groove (7) and an inclination angle sensor (8) are arranged inside the cross beam (1), the power supply wire is led out through the power supply wire groove (7) and is connected with a motor (9), the motor (9) is arranged at one end close to a side span and is sequentially connected with a motor transmission shaft (10), a locking component (11) and a motor-screw rod transmission component (12), the locking component (11) can lock the motor transmission shaft (10), the other end of the motor-screw rod transmission component (12) is connected with the screw rod (3), the sliding balancing weight (2) is sleeved on the screw rod (3), the center of the sliding balancing weight (2) is provided with an internal thread matched with the screw rod (3), two sides of the sliding balancing weight (2) are provided with slider wheels (13), the slider wheels (13) can move in the directional guide rail groove (5), the directional guide rail groove (5) is fixed on a transverse beam longitudinal stiffening rib (14) which is arranged in the same direction with the screw rod (3), the screw rod (3) drives the sliding balancing weight (2) to move back and forth in the directional guide rail groove (5) when rotating, a plurality of transverse beam transverse stiffening ribs (15) which play a role in fixing are also arranged in the transverse beam (1), a screw rod support (4) is fixed on any transverse beam transverse stiffening rib (15) far away from the end of the motor (9) and is used for supporting the other end of the screw rod (3),

the upright posts (16) are arranged on the bridge post, the upright posts (16) are fixed on the bridge post and the fixed bridge body through a plurality of rigid upright post inclined struts (17), the beam (1) is arranged on the upright post (16) through a beam hinge (18), the beam (1) is connected with a bridge deck (20) through a flexible tether (19), the bridge deck (20) is connected with the bridge column and the fixed bridge body through a bridge deck hinge (21), when the bridge is opened, the motor (9) drives the screw rod (3) to rotate, thereby driving the sliding balancing weight (2) to move towards the side span direction, thereby the center of gravity moves to the side span position, additional bending moment is generated, and a maneuvering system composed of the cross beam (1), the flexible tying rope (19) and the bridge deck (20) moves, wherein the crossbeam (1) rotates upwards around the crossbeam hinge (18) and the bridge deck plate (20) rotates upwards around the bridge deck plate hinge (21); when the bridge is closed, the motor (9) drives the screw rod (3) to rotate, so that the sliding balancing weight (2) is driven to move towards the midspan direction, the center of gravity moves towards the midspan position, additional bending moment is generated, a maneuvering system formed by the cross beam (1), the flexible tether (19) and the bridge deck (20) moves, and the cross beam (1) rotates downwards around the cross beam hinge (18) and the bridge deck (20) rotates downwards around the bridge deck hinge (21).

2. The device for opening and closing a bridge with hidden slidable counterweight according to claim 1, wherein said slidable counterweight (2) is made of metal.

3. The bridge opening and closing device of the hidden type slidable balancing weight according to claim 1, characterized in that the sliding balancing weight (2) is limited at both ends by the motor-screw transmission assembly (12) and the screw support (4) during the moving process, so that the sliding balancing weight cannot slide out of the screw (3) and the directional guide rail groove (5).

4. A hidden type bridge opening and closing device with a slidable weight block as claimed in claim 1, wherein the locking assembly (11) releases the locking when the motor (9) is turned on and releases the locking when the motor (9) is turned off.

5. The bridge opening and closing device of the hidden slidable counterweight according to claim 1, wherein the beam hinge (18) has a damping effect to prevent the beam (1) from rotating too fast, the beam hinge (18) further has a self-locking structure, and when the beam (1) reaches a target posture, the beam hinge (18) is locked.

6. The device for opening and closing a bridge with a concealed sliding counterweight according to claim 1, wherein there are two locking assemblies (11), one is installed at the motor shaft (10) and the other is installed at the tail of the screw (3).

7. The bridge opening and closing device of the hidden slidable counterweight according to claim 1, wherein the beam end cover (6) can be opened and closed, the beam (1) can be overhauled by opening the beam end cover (6), and the components in the beam (1) can be protected by closing the beam end cover (6).