The quick lift platform of a kind of bridge inspection vehicle
Technical field
The quick lift platform of a kind of bridge inspection vehicle of the present invention belongs to the bridge inspection apparatus field, particularly bridge lower edge inspection trolley.
Background technology
At present, the most frequently used checkout facility to the bridge edge of a wing and oblique web in domestic and abroad bridge field has Simple crawling ladder and bridge inspection vehicle etc.But its examination scope of Simple crawling ladder commonly used is limited because bottom that can not the full maintenance arch bridge, so can't carry out full section inspection to bridge, use also inconvenient, inefficiency; Existing mobile scissor aerial work platform, although can carry out bridge inspection, because the bottom is not fixed with the inspection trolley vehicle frame, because wind carries the impact of moving with inspection trolley, stability is not good yet, makes it to reexamine to check the bridge edge of a wing in the car moving process.And area of platform is little, structure is heavy.Now need can to check simultaneously the bridge edge of a wing under a kind of easy to operate, area of platform, can move in the bridge inspection vehicle lift platform of inspection, light in structure, good stability.
Summary of the invention
The invention provides the quick lift platform of a kind of bridge inspection vehicle, to realize that inspection trolley moves the quick lifting of stablizing of middle working platform, satisfy the needs to the high efficiency examination and maintenance of bridge bottom.
The present invention adopts following technical scheme:
The quick lift platform of a kind of bridge inspection vehicle of the present invention, comprise upper mounting plate, the foldable crane, electric pushrod mechanism and base, described foldable crane is comprised of travelling carriage, slide mechanism, bracing frame, link, brace, bracing frame is connected to form by two joint bracing frames up and down, its upper end is connected with upper mounting plate by bearing pin, travelling carriage is by its upper end slide mechanism and upper mounting plate sliding connection, and travelling carriage is connected the lower end and is connected with the base bearing pin to be separately fixed at and connects the inspection trolley vehicle frame with bracing frame; Link is horizontally disposed with, and the one end is connected with the link bearing pin of upper and lower joint bracing frame, consists of the break of bracing frame one side; Its other end is connected bearing pin with the brace lower end and is connected with travelling carriage, is the break of travelling carriage one side; This jib head is connected with the upper mounting plate bearing pin; The electric pushrod end of electric pushrod mechanism is connected with the travelling carriage bottom, and flexible by electric pushrod, travelling carriage slides along upper mounting plate, makes the foldable crane stretch or fold at the break place, thereby realizes the quick lifting of working platform.
Described slide mechanism is comprised of pulley, connecting axle, and pulley is installed in the travelling carriage top by connecting axle, and travelling carriage is slidingly matched by its top pulley and upper mounting plate.
Described upper mounting plate is provided with the chute that cooperates with travelling carriage top pulley.
Described electric pushrod mechanism is comprised of electric pushrod and the Connection Block of band brake, and the electric pushrod of band brake is connected with Connection Block by bearing pin and is fixed on the inspection trolley vehicle frame.
The quick lift platform of a kind of bridge maintenance of the present invention, to have mobile scissor aerial work platform now, Creative Design is can be in the folded truss structure of inspection trolley moving process use, it is strong to have stability, working platform is large, can in moving, inspection trolley check the bridge edge of a wing, safe characteristics, base and Connection Block with lift platform is fixed on the inspection trolley vehicle frame first, when needs check bridge, the travelling carriage that electric pushrod promotes the foldable crane rises around break, the slide mechanism at travelling carriage top is slip jack-up upper mounting plate one end in the chute of upper mounting plate, travelling carriage drives respectively brace and link, link drives bracing frame and rises around break, the other end of jack-up upper mounting plate, whole like this upper mounting plate rises to the operating position, at this moment the electric pushrod of band brake stops action, the brake that the electric pushrod of band brake carries locks electric pushrod, electric pushrod mechanism and travelling carriage are fixed on by base and Connection Block and form a stable triangular structure on the inspection trolley vehicle frame, guaranteed the firm of upper mounting plate, then staff's working face of climbing upper mounting plate by the cross bar on the bracing frame just can overhaul the bridge edge of a wing, otherwise, the electric pushrod retraction, upper mounting plate can descend; Even in the inspection trolley moving process, because the lift platform bottom is fixed on the support good stability, the staff need not to get off just can continue bridge is overhauled from upper mounting plate again, and whole operation use procedure is simple, safe and reliable, high efficiency not only, and integrated cost is low.
Description of drawings
Fig. 1 upper mounting plate of the present invention rises to rise to stablizes the elevation structural schematic diagram
The A-A schematic diagram of the above-mentioned Fig. 1 of Fig. 2 the present invention
The B-B schematic diagram of the above-mentioned Fig. 1 of Fig. 3 the present invention
Schematic diagram after Fig. 4 upper mounting plate of the present invention rises
Fig. 5 travelling carriage top sheave of the present invention end cross-sectional schematic
The specific embodiment
How now further specify by reference to the accompanying drawings the present invention implements:
The quick lift platform of a kind of bridge inspection vehicle of the present invention, comprise upper mounting plate 1, Foldable lift frame 2, electric pushrod mechanism 3 and base 4, described Foldable lift frame 2 is comprised of travelling carriage 5, bracing frame 6, link 7, slide mechanism 8 and brace 9, travelling carriage 2 upper ends are equipped with slide mechanism 8 and upper mounting plate 1 sliding connection, and travelling carriage 5 lower ends are connected with base 1 bearing pin that is installed in inspection trolley vehicle frame 0; Bracing frame 6 is connected to form by upper joint bracing frame 10 and lower joint bracing frame 11, and upper joint bracing frame 10 upper ends are connected with upper mounting plate 1 by bearing pin; Lower joint bracing frame 11 lower ends are connected with base 1 bearing pin that is installed in inspection trolley vehicle frame 0; Link 7 is horizontally disposed with, and link 7 one ends are connected with the link bearing pin of upper joint bracing frame 10, lower joint bracing frame 11, become the break Z1 of bracing frame 6 one sides; Link 7 other ends are connected the lower end and are connected with travelling carriage 5 by bearing pin with brace, become travelling carriage 5 one side break Z2; These brace 3 upper ends are connected with upper mounting plate 1 bearing pin; Electric pushrod mechanism 3 is connected with inspection trolley vehicle frame 0, the end of electric pushrod 13 is connected with travelling carriage 5 bottoms, by stretching of electric pushrod 13, travelling carriage 5 slides along the chute of upper mounting plate 1, make Foldable lift frame 2 in break Z1, the Z2 place stretching, extension or folding of its side frames, thereby realize quick rising or the decline of upper mounting plate 1, such as Fig. 1.
Slide mechanism 8 is arranged at described travelling carriage 5 tops, and this slide mechanism is comprised of pulley 14, connecting axle 15, and pulley 14 is installed in travelling carriage 5 tops by connecting axle 15, and travelling carriage 5 is slidingly matched with upper mounting plate 1 by its top pulley 14, such as Fig. 5.
Described upper mounting plate 1 is provided with the chute that the pulley 14 installed with the top of travelling carriage 5 cooperates.
Described electric pushrod mechanism 3 is comprised of electric pushrod 13 and the Connection Block 16 of band brake, and the electric pushrod 13 of band brake is connected with Connection Block 16 by bearing pin, and this Connection Block 16 is fixed on the vehicle frame 0.
Base 4 and the Connection Block 16 of lift platform are fixed on the inspection trolley vehicle frame 0, when needs check bridge, the travelling carriage 5 that the electric pushrod 13 of band brake promotes foldable crane 2 rises around break Z1, be installed in slide mechanism 8 slip jack-up upper mounting plate 1 one ends in the chute of upper mounting plate 1 at travelling carriage 5 tops, travelling carriage 5 drives respectively brace 9 and link 7, link 7 drives bracing frame 6 and rises around break Z2, the other end of jack-up upper mounting plate 1, whole like this upper mounting plate 1 rises to the operating position, at this moment the electric pushrod 13 of band brake stops action, the brake that the electric pushrod 13 of band brake carries locks electric pushrod, electric pushrod mechanism 3 and travelling carriage 5 are fixed on by base 4 and Connection Block 16 and form a stable triangular structure on the inspection trolley vehicle frame 0, guaranteed the firm of upper mounting plate 1, then staff's working face of climbing upper mounting plate 1 by the cross bar on the bracing frame 6 just can overhaul the bridge edge of a wing 20,5 directions of motion of travelling carriage shown in Fig. 4 arrow, good stability, the staff need not to get off just can continue the bridge edge of a wing 20 is overhauled from upper mounting plate again, simple to operate, safe and reliable, high efficiency.
Otherwise, electric pushrod 13 retractions of band brake, upper mounting plate 1 drops to the horizontal plane state.