Lifting passenger and roll-on bridge driving device

Abstract

The application discloses a jacking type passenger-vehicle roll bridge driving device, which comprises a vertically arranged track frame, the bottom of the track frame is hinged to a track frame hinge seat fixed on a hydraulic foundation, a vertically arranged jacking hydraulic cylinder is installed in the track frame, a top wheel frame is installed on the output end of the jacking hydraulic cylinder, a plurality of coaxially arranged top wheels are arranged in the top wheel frame, the top wheel frame and the top wheels are slidably connected with top wheel tracks on the track frame, a lifting chain is installed in the top wheel and passes through the top wheel, one end of the lifting chain is hingedly fixed on the hydraulic foundation through a foundation lifting point, and the other end of the lifting chain is hingedly fixed on a bridge plate through a bridge plate lifting point. The main features of the driving device are as follows: 1. the driving device has the function of increasing the stroke; 2. the load of the jacking hydraulic cylinder is doubled; and 3. compared with the existing passenger-vehicle roll bridge, the overall structure of the driving device is greatly simplified, the size of the hydraulic cylinder is reduced, the manufacturing and installation are relatively simple, and the cost is significantly reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of passenger-vehicle bridge drive device, in particular, jacking passenger-vehicle bridge drive device. BACKGROUND

[0002] At present, passenger-vehicle bridge is the necessary equipment of passenger-vehicle wharf, and the structure of most passenger-vehicle bridges currently used is as shown in the figure Figure 1 Wherein, the bridge plate 1` is the main component for bearing the vehicle load of getting on and off the ship, the tail shaft 6` is fixed on the water foundation, the bridge plate 1` can rotate around it, there is a lifting point hinge 3` on each side of the front part of the bridge plate 1`, which is hinged with the piston rod end of the lifting hydraulic cylinder 2`, the bridge plate 1` is driven by the lifting hydraulic cylinder 2` to move, and is adjusted to the appropriate angle, and then is overlapped with the springboard of the passenger-vehicle ship 8` to form the channel from the shore to the ship. The lifting hydraulic cylinder 2` is hung at the top end of the mast 5`, the bottom end of the mast 5` is seated on the mast pier 4`, and there is a portal frame 7` structure between the top ends of the two masts.

[0003] The main problems of this passenger-vehicle bridge are as follows: first, the cost is high, the stroke of the lifting hydraulic cylinder 2` must be consistent with the stroke of the lifting point, which is generally not less than 4` meters, in addition, the lifting hydraulic cylinder 2` also bears the vehicle passing load, and the cylinder diameter must be large enough. The price of such large-stroke and large-diameter hydraulic cylinder is not cheap, in addition, the mast 5`, the mast pier 4` and the portal frame 7` and other components and structures also need to be made, so that the overall cost is difficult to reduce. The second problem is high failure rate. Since the hydraulic cylinder bears the load in the lifting mode, all the loads act on the rod cavity, the piston area in the rod cavity is occupied by about 37% of the piston rod, and the effective area for bearing load is only about 63%, so the unit area pressure is very large. Under this huge pressure, the sealing element between the end cover of the hydraulic cylinder and the piston rod is damaged first, the hydraulic oil leaks, and the pressure disappears. In actual operation, such failures occur from time to time, the wharf has no ability to repair the hydraulic cylinder, and the hydraulic cylinder must be sent to the manufacturer for repair, which has high cost of funds and time. SUMMARY

[0004] According to the above technical problems, a jacking passenger-vehicle bridge drive device is provided. The technical means adopted by the present application is as follows:

[0005] The jacking type passenger-vehicle roll bridge driving device comprises a vertically arranged track frame, the bottom of the track frame is hinged to a track frame hinge seat fixed on a water foundation, can swing around the hinge shaft, a vertically arranged jacking hydraulic cylinder is installed in the track frame, the jacking hydraulic cylinder is contained in the track frame, a top wheel frame is installed on the output end of the jacking hydraulic cylinder, a plurality of coaxially arranged top wheels are arranged in the top wheel frame, the top wheel frame and the top wheels are in sliding connection with the top wheel tracks on the track frame, are constrained by the top wheel tracks and can only move linearly along the top wheel tracks in the track frame, hoisting chains are installed in the top wheels and pass through the top wheels, one end of the hoisting chains is hingedly fixed to the water foundation through a foundation lifting point, and the other end is hingedly fixed to a bridge plate through a bridge plate lifting point.

[0006] A leaning wheel assembly is installed on the bridge plate and arranged on both sides of the track frame, the leaning wheel assembly comprises a leaning wheel frame fixed on the bridge plate, two leaning wheels are installed on the leaning wheel frame and arranged on both sides of the leaning wheel tracks and in rolling connection with the leaning wheel tracks. The two leaning wheels "clamp" the leaning wheel tracks. The track frame is a steel cage structure with four longitudinal beams, the longitudinal beams form the top wheel tracks, and the track frame has two longitudinal beams on the side close to the bridge plate lifting point hinge, and the longitudinal beams form the leaning wheel tracks.

[0007] The present application has the following advantages:

[0008] The main features of the driving device are as follows: 1. The driving device has a range increasing effect, that is, the stroke of the bridge plate lifting point hinge is twice that of the piston rod, for example, if the stroke of the bridge plate lifting point hinge needs to be 4 meters, the stroke of the piston rod only needs to be 2 meters, and the running speed of the bridge plate lifting point hinge is twice that of the piston rod; 2. The load of the jacking hydraulic cylinder is doubled, for example, if the load of the bridge plate lifting point hinge is 150 tons, the hydraulic cylinder needs to bear a load of 300 tons, but since the load is all applied to the rodless cavity of the hydraulic cylinder, the piston area is all used for bearing pressure, and there is no sealing problem, so the working effect is better than that of the existing lifting type; 3. Compared with the existing passenger-vehicle roll bridge, the overall structure is greatly simplified, the size of the hydraulic cylinder is reduced, the manufacturing and installation are relatively simple, and the cost is significantly reduced. Figure 1 The jacking type passenger-vehicle roll bridge driving device comprises a vertically arranged track frame, the bottom of the track frame is hinged to a track frame hinge seat fixed on a water foundation, can swing around the hinge shaft, a vertically arranged jacking hydraulic cylinder is installed in the track frame, the jacking hydraulic cylinder is contained in the track frame, a top wheel frame is installed on the output end of the jacking hydraulic cylinder, a plurality of coaxially arranged top wheels are arranged in the top wheel frame, the top wheel frame and the top wheels are in sliding connection with the top wheel tracks on the track frame, are constrained by the top wheel tracks and can only move linearly along the top wheel tracks in the track frame, hoisting chains are installed in the top wheels and pass through the top wheels, one end of the hoisting chains is hingedly fixed to the water foundation through a foundation lifting point, and the other end is hingedly fixed to a bridge plate through a bridge plate lifting point.

[0009] Based on the above reasons, the present application can be widely popularized in the field of passenger-vehicle roll bridges. BRIEF DESCRIPTION OF DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments or prior art description. Obviously, the drawings described below are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0011] Figure 1 It is a schematic diagram of the existing passenger-roller bridge structure in the background art of the present application.

[0012] Figure 2 It is a schematic diagram of the driving device structure of the jacking passenger-roller bridge (the bridge plate is at the top point) in the specific embodiment of the present application.

[0013] Figure 3 It is a schematic diagram of the driving device structure of the jacking passenger-roller bridge (the bridge plate is at the bottom point) in the specific embodiment of the present application.

[0014] Figure 4 It is a schematic diagram of the wheel assembly structure in the specific embodiment of the present application. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the following will combine the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0016] As shown in Figures 2-4 The driving device of the jacking passenger-roller bridge comprises a vertically arranged track frame 11, the bottom of the track frame 11 is hinged to a track frame hinge base 9 fixed on a hydraulic foundation 20, can swing around the hinge shaft thereof, a jacking hydraulic cylinder 10 vertically arranged is installed in the track frame 11, the jacking hydraulic cylinder 10 is contained in the track frame 11, a top wheel frame 15 is installed at the top end of the piston rod 18 of the jacking hydraulic cylinder 10, and a plurality of coaxially arranged top wheels 14 are arranged in the top wheel frame 15, the top wheel frame 15 and the top wheels 14 are in sliding connection with the top wheel tracks 16 on the track frame 11, are constrained by the top wheel tracks 16 and can only move linearly along the top wheel tracks 16 in the track frame 11, a hoisting chain 13 passing through the top wheels 14 is installed in the top wheels 14, one end of the hoisting chain 13 is fixed on the hydraulic foundation 20 through a foundation lifting point hinge 19, and the other end is fixed on a bridge plate 1 through a bridge plate lifting point hinge 3.

[0017] The bridge plate 1 is provided with a leaning wheel assembly 17 arranged on both sides of the track frame 11, respectively. The leaning wheel assembly 17 comprises a leaning wheel frame 17-1 fixed on the bridge plate 1, and two leaning wheels 17-2 are arranged on the leaning wheel frame 17-1 and are in rolling connection with the leaning wheel track 12. The two leaning wheels 17-2 "clamp" the leaning wheel track 12. The track frame 11 is a steel cage structure with four longitudinal beams, and the longitudinal beams form the top wheel track 16. The track frame 11 is also provided with two longitudinal beams on the side close to the bridge plate lifting point hinge 3, and the longitudinal beams form the leaning wheel track 12.

[0018] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features can be replaced by equivalents. The modification or replacement does not make the essence of the corresponding technical solution deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A lifting-type passenger roll-on / roll-off bridge drive device, characterized in that, The system includes a vertically mounted track frame, the bottom of which is hinged to a track frame hinge seat fixed on a hydraulic foundation. A vertically mounted lifting hydraulic cylinder is installed inside the track frame. A top wheel frame is mounted on the output end of the lifting hydraulic cylinder, and multiple coaxially mounted top wheels are provided inside the top wheel frame. The top wheel frame and the top wheels are slidably connected to the top wheel track on the track frame. A lifting chain that passes around the top wheel is installed inside the top wheel, and one end of the lifting chain is fixed to the hydraulic foundation through a foundation lifting point hinge, and the other end is fixed to the bridge plate through a bridge plate lifting point hinge. The track frame is a steel cage structure with four longitudinal beams, which form the top wheel track. The track frame also has two longitudinal beams on the side near the bridge plate suspension point hinge, which form the wheel guide track. The bridge plate is equipped with wheel assemblies respectively arranged on both sides of the track frame, and the wheel assemblies are tactilely connected to the wheel tracks on both sides of the outer side of the track frame; The wheel assembly includes a wheel frame fixed to the bridge plate, on which two wheels are mounted, and the two wheels are arranged on both sides of the wheel track.

Images