阅读说明：本技术 一种桥梁检测车防倾翻车桥锁紧装置 (Anti-tipping axle locking device of bridge inspection vehicle ) 是由 李根文 许黎明 邱剑飞 胡志林 孔令燕 姚金鹏 郑德玺 于 2021-10-29 设计创作，主要内容包括：本发明属于桥梁检测车辅助机构,具体涉及一种桥梁检测车防倾翻车桥锁紧装置,包括安装在底盘大梁上的连接贴板,连接贴板上设有支座A和支座B,支座A靠近底盘车桥一侧设置；支座A上铰接有带有U型锁口的锁钩,锁钩上铰接有油缸,油缸还与支座B铰接,所述底盘车桥上固定有与锁钩相配合的固定板。在桥梁检测车进行展车动作时,防倾翻车桥锁紧装置将上部作业装置与底盘车桥锁紧,若车辆底盘上出现较大左右偏载,防倾翻车桥锁紧装置可以有效避免车辆左右倾斜对底盘大梁扭动造成的损伤,保护车辆前车桥减震系统,同时也可以进一步提升车辆的整车稳定性。(The invention belongs to an auxiliary mechanism of a bridge inspection vehicle, and particularly relates to an anti-tipping axle locking device of the bridge inspection vehicle, which comprises a connecting attachment plate arranged on a crossbeam of a chassis, wherein a support A and a support B are arranged on the connecting attachment plate, and the support A is arranged close to one side of an axle of the chassis; a lock hook with a U-shaped lock opening is hinged to the support A, an oil cylinder is hinged to the lock hook, the oil cylinder is further hinged to the support B, and a fixing plate matched with the lock hook is fixed to the chassis axle. When the bridge inspection vehicle performs a vehicle unfolding action, the anti-tipping axle locking device locks the upper operation device and the chassis axle, if a large left-right unbalance load appears on a vehicle chassis, the anti-tipping axle locking device can effectively avoid the damage to the twisting of a chassis crossbeam caused by the left-right tilting of the vehicle, protect a front axle damping system of the vehicle, and further improve the stability of the whole vehicle of the vehicle.)

1. The utility model provides a bridge inspect vehicle anti-tilt axle locking device which characterized in that: the connecting attachment plate comprises a connecting attachment plate (1) arranged on a crossbeam of a chassis, wherein a support A (11) and a support B (12) are arranged on the connecting attachment plate (1), and the support A (11) is arranged close to one side of an axle of the chassis; a lock hook (7) with a U-shaped lock opening is hinged to the support A (11), an oil cylinder (4) is hinged to the lock hook (7), the oil cylinder (4) is further hinged to the support B (12), and a fixing plate (8) matched with the lock hook (7) is fixed to the chassis axle.

2. The anti-rollover axle locking device for the bridge inspection vehicle, according to claim 1, is characterized in that: the bottom of the oil cylinder (4) is hinged with the support B (12), and a piston rod of the oil cylinder (4) is hinged with the locking hook (7).

3. The anti-rollover axle locking device for the bridge inspection vehicle, according to claim 1, is characterized in that: the fixed plate (8) is welded on a chassis axle.

4. The anti-rollover axle locking device for the bridge inspection vehicle, according to claim 1, is characterized in that: the connecting flitch (1) is movably connected with the side surface of the chassis girder through a bolt (2).

Technical Field

The invention belongs to an auxiliary mechanism of a bridge inspection vehicle, and particularly relates to an anti-tipping axle locking device of the bridge inspection vehicle.

Background

The bridge inspection vehicle is a special vehicle for conveying workers to a designated position for bridge inspection or maintenance operation through an operation platform, the design layout of the whole vehicle is that an upper operation device is installed and fixed on a chassis crossbeam, when the bridge inspection vehicle carries out vehicle unfolding operation, the vehicle chassis is matched with the upper operation device in a cooperative mode, the vehicle chassis mainly provides a power source for the operation of the upper operation device, the traveling operation is realized by matching with a traveling system of the vehicle, and meanwhile, the self weight of the chassis is also an indispensable part in a whole vehicle stabilizing system.

However, when the bridge inspection vehicle is used for vehicle unfolding operation, the vehicle can have a left-right unbalance loading phenomenon, in order to avoid that a damping system of a chassis is seriously damaged due to local stress, the bridge inspection vehicle is generally provided with rigid walking support legs on one side or two sides of an auxiliary frame of an upper operation device, meanwhile, a stabilizer oil cylinder is arranged between the auxiliary frame of the upper operation device and a chassis axle, when the vehicle is used for vehicle unfolding operation, the stabilizer oil cylinder stretches out and the support legs sequentially, the gravity of the upper operation device is mainly transmitted to the ground through the support legs, meanwhile, part of the gravity is directly transmitted to the axle and then to the ground through the damping system by skipping the oil cylinder through the stabilizer, however, in this state, the stabilizer oil cylinder and the axle are supported in surface contact, and when the vehicle inclines due to unbalance loading, the stabilizer oil cylinder on one side far away from the gravity center is separated from the axle, and the stability of the whole vehicle is influenced.

Disclosure of Invention

In order to overcome the defects of the prior art, the invention provides the anti-tipping axle locking device of the bridge inspection vehicle, when the bridge inspection vehicle performs vehicle unfolding action, the anti-tipping axle locking device locks the upper operation device and the chassis axle, if larger left and right unbalance loads occur on a vehicle chassis, the anti-tipping axle locking device can effectively avoid the damage to the twisting of a chassis girder caused by the left and right inclination of the vehicle, protect a front axle damping system of the vehicle, and simultaneously can further improve the whole vehicle stability of the vehicle.

The invention is realized by the following technical scheme: an anti-rollover axle locking device of a bridge inspection vehicle comprises a connecting attachment plate arranged on a chassis crossbeam, wherein a support A and a support B are arranged on the connecting attachment plate, and the support A is arranged close to one side of a chassis axle; a lock hook with a U-shaped lock opening is hinged to the support A, an oil cylinder is hinged to the lock hook, the oil cylinder is further hinged to the support B, and a fixing plate matched with the lock hook is fixed to the chassis axle.

Furthermore, the bottom of the oil cylinder is hinged with the support B, and a piston rod of the oil cylinder is hinged with the locking hook.

Further, the fixing plate is welded on the chassis axle.

Furthermore, the connecting flitch plate is movably connected with the side surface of the chassis girder through a bolt.

The invention has the beneficial effects that: when the bridge inspection vehicle needs to be unfolded for operation, the stabilizer oil cylinder on the auxiliary frame of the upper operation device extends out to be supported on the chassis axle, and the anti-tipping axle locking device is opened to lock the upper operation device of the bridge inspection vehicle with the chassis axle. At the moment, when the bridge inspection vehicle performs vehicle unfolding action, if large left and right unbalance loads occur on a vehicle chassis, the upper operation device is locked with a chassis axle, so that the damage to the twisting of a chassis crossbeam caused by the left and right inclination of the vehicle can be effectively avoided, a vehicle front axle damping system is protected, and the whole vehicle stability of the vehicle can be further improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

in the figure, 1, a connecting flitch 11, supports A and 12, supports B and 2, bolts 3, pins I and 4, an oil cylinder 5, pins II and 6, pins III and 7, a latch hook 8, a fixing plate 9, a chassis girder 10 and a chassis axle.

Detailed Description

The invention is further illustrated below with reference to the figures and examples.

The auxiliary frame of the upper operation device of the bridge inspection vehicle is connected and fixed on a crossbeam of the chassis, and the upper operation device is positioned on the front side of a front axle of the vehicle. A set of anti-tipping axle locking device is arranged on chassis girders 9 on two sides of a bridge inspection vehicle. As shown in fig. 1, the anti-rollover axle locking device comprises a connecting plate 1 mounted on a chassis girder 9, and specifically, the connecting plate 1 is movably connected with the side surface of the chassis girder 9 through a bolt 2. The connecting flitch 1 is provided with a support A11 and a support B12, wherein the support A11 is arranged near one side of the chassis axle, and the support A11 and the support B12 can be integrally formed with the connecting flitch 1 or can be connected on the connecting flitch 1 through bolts and the like. A lock hook 7 with a U-shaped lock opening is hinged to the support A11, as shown in fig. 1, the lock hook 7 is F-shaped, and one end, far away from the U-shaped lock opening, of the lock hook 7 is hinged to the support A11 through a pin shaft II 5. An oil cylinder 4 is hinged to the lock hook 7 through a pin shaft III 6, the oil cylinder 4 is hinged to a support B12 through a pin shaft I3, specifically, the bottom of the oil cylinder 4 is hinged to a support B12 through a pin shaft I3, and a piston rod of the oil cylinder 4 is hinged to the lock hook 7 through a pin shaft III 6. A fixing plate 8 is welded on the chassis axle 10, and the fixing plate 8 is matched with a U-shaped locking opening of the locking hook 7.

When the bridge inspection vehicle needs to be unfolded for operation, the stabilizer oil cylinder extends out to be supported on the chassis axle 10, then the anti-rollover axle locking device switch of the vehicle is opened, the anti-rollover axle locking devices on two sides of the bridge inspection vehicle all control the piston rods of the oil cylinders 4 of the anti-rollover axle locking devices to extend out through the hydraulic system, the locking hooks 7 are pushed to rotate around the pin shafts II 5, after the oil cylinders 4 extend completely, the locking hooks 7 can hook the fixing plates 8 through the U-shaped locking openings, and locking of the upper operation device and the chassis axle 10 is achieved. When the vehicle is in the operation of exhibition, the center of gravity of the upper operation device moves, and when the unbalance loading about the center of gravity is large, the latch hook close to the center of gravity side is supported on the chassis axle, so that the vehicle damping system is effectively protected, the latch hook far away from the center of gravity side is locked with the chassis axle, the damage caused by the twisting of the chassis crossbeam due to the left and right inclination of the vehicle can be effectively avoided, and the stability of the whole vehicle of the vehicle can be further improved.

After the operation of the bridge inspection vehicle is finished, the switch of the anti-tipping axle locking device is closed, the piston rod of the oil cylinder 4 retracts, the locking hook 7 is driven to rotate around the pin shaft II 5 to the initial position, and the U-shaped locking opening of the locking hook 7 is separated from the fixing plate 8.