A height difference compensation device for opening bridge

Abstract

The present invention relates to a height difference compensation device for an open bridge, comprising a mounting crossbeam, a connecting pin, a double-hinged connecting load-bearing beam, a cover plate, a trolley frame, a large wheel group, a small wheel group, a tail plate, a right hinge plate, a left hinge plate, a left hinge plate cover plate, a hinge plate pin, a right hinge plate cover plate and a tail plate cover plate. The present invention connects the bridge deck of a movable bridge frame with a height difference and the bridge deck of a fixed bridge frame through the trolley frame, the cover plate and the tail plate cover plate through the height difference compensation device for an open bridge, so that the vehicle can safely pass the junction of the movable bridge frame and the fixed bridge frame with a height difference; the connection mechanism composed of the mounting crossbeam, the connecting pin and the double-hinged connecting load-bearing beam can rotate around the connecting pin, and when the height difference changes, the connecting pin rotates to change the inclination of the double-hinged connecting load-bearing beam to achieve compensation for different height differences.

Description

Technical Field

[0001] The invention belongs to the technical field of bridges, and specifically relates to a height difference compensation device, and in particular to a height difference compensation device for an opening bridge. Background Art

[0002] A bascule bridge is a bridge in which part of the span structure can be opened. It is generally used when there are ships sailing on the river but the bridge cannot be built above the navigation clearance. The opening and closing methods of bascule bridges include vertical rotation, horizontal rotation, lifting, telescopic, and side rotation. A vertical rotation bascule bridge is to rotate the span structure on the vertical plane to open and close the bridge; a horizontal rotation bascule bridge is to rotate the span structure on the horizontal plane to open and close the bridge; a lifting bascule bridge is to lift the span structure to a specified height to open the bridge; a telescopic bascule bridge is to retract the span structure and place it under a fixed bridge to open the bridge. For example, patent CN206736702U invented a drawer-type opening bridge, the power device of which includes a hydraulic device and a telescopic device. When opening, the hydraulic device works to raise the span structure of the opening bridge, and the telescopic device contracts to retract the span structure of the opening bridge; when closing, the telescopic device extends the cylinder to extend the span structure of the opening bridge, and the hydraulic device works to lower the span structure of the opening bridge to the closed position; for another example, patent CN106245513A invented a telescopic opening bridge, which realizes jacking support by adding a guide beam mechanism under the span structure. When opening, the hydraulic device is first lifted and the bridge pushing mechanism is moved to retract the span structure, and then the guide beam propulsion mechanism is used to retract the guide beam structure, and finally the opening process is completed; when closing, the guide beam structure is first pushed out by the guide beam propulsion mechanism, and then the bridge span structure is at the same height as the fixed abutment through the movement of the bridge pushing mechanism and the lowering of the hydraulic device.

[0003] The above patents all use a jacking hydraulic cylinder to complete the lifting action, and a telescopic device or a bridge pushing mechanism to complete the telescopic action. For traffic safety, the upper surface of the mobile bridge frame and the upper surface of the fixed bridge frame must be at the same level when the bridge span structure is closed, which requires extremely high construction accuracy. Summary of the invention

[0004] The purpose of the present invention is to provide a height difference compensation device for an opening bridge which is easy to use and capable of automatic compensation, so as to realize compensation for different height differences when the height difference between a movable bridge frame and a fixed bridge frame changes.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a height difference compensation device for an open bridge, characterized in that the device includes a trolley frame located on a fixed bridge frame, the first end of the trolley frame is movably connected to a movable bridge frame through a double-hinged load-bearing beam, and the second end of the trolley frame is provided with a tail plate, and the two ends of the double-hinged load-bearing beam are respectively connected to the mounting beam through connecting pins, the mounting beam at one end of the double-hinged load-bearing beam is connected to the first end of the trolley frame, and the mounting beam at the other end is connected to the movable bridge frame. When the height difference between the movable bridge frame and the fixed bridge frame changes, the connecting pin rotates to change the inclination degree of the double-hinged load-bearing beam to achieve compensation for different height differences.

[0006] Furthermore, a cover plate is provided above the double-hinged load-bearing beam, one end of which is connected to the first end of the trolley frame to cover the double-hinged load-bearing beam and the connecting pins and the mounting beam at both ends thereof, so as to protect the double-hinged load-bearing beam, the connecting pins and the mounting beam from being crushed.

[0007] Furthermore, a transverse groove and a longitudinal groove are provided at the bottom of the trolley frame, and the large wheel group and the small wheel group are fixed at the intersection of the transverse groove and the longitudinal groove. A transverse sliding device is also provided on the top of the large wheel group, so that the large wheel group can roll and move laterally along the longitudinal direction, and the small wheel group can roll along the longitudinal direction.

[0008] Furthermore, the second end of the trolley frame is connected to the tail plate through a movable connection mechanism, and the movable connection mechanism includes a left hinge plate and a right hinge plate. The left and right hinge plates are connected by a pin shaft and can rotate around the pin shaft; the right hinge plate is connected to the trolley frame through a right hinge plate cover plate, and the left hinge plate is connected to a tail plate cover plate arranged on the surface of the tail plate through a left hinge plate cover plate.

[0009] Furthermore, the cross section of the trolley frame is a right triangle or a right trapezoid with a small slope, and its slope is between 3% and 6%; the cross section of the tail board is a right triangle with a small slope, and the longitudinal slope ranges from 8% to 15%.

[0010] Furthermore, handles are provided on the tail plate and the cover plate for lifting and installing a height difference compensation device for an opening bridge.

[0011] Furthermore, two groups of support plates are symmetrically arranged below the cover plate to enhance the support strength of the cover plate.

[0012] Another object of the present invention is to provide a method for height difference compensation using a height difference compensation device for an opening bridge, so as to achieve compensation for different height differences when the height difference between a movable bridge frame and a fixed bridge frame changes.

[0013] In order to achieve the above object, the technical solution of the present invention is as follows: a method for height difference compensation using a height difference compensation device for an opening bridge, characterized in that the method comprises the following steps:

[0014] A. Lift the height difference compensation device for the open bridge to the side of the fixed bridge deck close to the movable bridge, and then install and fix the installation beam at the end of the movable bridge;

[0015] B. Rotate the connecting pin and hinge plate pin, adjust the angles of the installation beam, double hinge connection load beam, right hinge plate and left hinge plate so that the upper surfaces of the cover plate, trolley frame, double hinge connection load beam cover plate, left and right hinge plate cover plates and tail plate cover plate form a continuous slope, and complete the height difference compensation from the fixed bridge to the movable bridge;

[0016] C. When the movable bridge is driven to open or close, the height difference compensation device for the opening bridge moves along the fixed bridge deck;

[0017] D. When the height difference between the movable bridge and the fixed bridge changes, the connecting pin rotates to compensate for the height difference from the fixed bridge to the movable bridge.

[0018] The present invention uses an opening bridge height difference compensation device to connect the deck of a movable bridge frame with a height difference and the deck of a fixed bridge frame through a trolley frame, a cover plate and a tail plate cover plate, so that vehicles can safely pass the junction of the movable bridge frame and the fixed bridge frame with a height difference; the connection mechanism composed of an installation crossbeam, a connecting pin shaft and a double-hinged connecting load-bearing beam can rotate around the connecting pin shaft. When the height difference changes, the connecting pin shaft rotates to change the inclination degree of the double-hinged connecting load-bearing beam to achieve compensation for different height differences. The present invention has the characteristics of easy use, low cost, high degree of automation, strong adaptability, and good compensation. The beneficial effects of the present invention are:

[0019] 1. Low cost. The main parts of the invention include pins, box beams, cover plates, trolley frames, wheel sets, tail plates, hinge plates, etc., all of which can be processed from steel plates through various processes. There is no electronic control system and hydraulic components in the device, so the structure is simple and the cost is low.

[0020] 2. Easy to use and highly automated. The present invention automatically adjusts the angle of the connection mechanism consisting of the installation beam, the connection pin, and the double-hinged connection beam through the rotation of the connection pin and the double-hinged connection beam pin, so that the present invention can achieve height difference compensation without manual operation after installation.

[0021] 3. Strong adaptability. The present invention is not limited to compensating for a specified height difference between a movable bridge and a fixed bridge, but is applicable to a height difference that is variable within a certain range. When the height difference changes, the present invention can automatically adapt and make angle adjustments to complete the height difference compensation through the rotation of the connecting pin and the double-hinged connecting load beam.

[0022] 4. Good compensation effect. After the installation of the present invention is completed, the upper surface of the double-hinged connection load beam cover, trolley frame, left and right hinge plate cover, and tail plate cover forms a continuous slope to compensate for the height difference between the movable bridge and the fixed bridge, so that the vehicle can smoothly pass the connection surface of the movable bridge and the fixed bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is the front view of the height difference compensation device for the bascule bridge;

[0024] Figure 2 It is a top view of a height difference compensation device for a bascule bridge;

[0025] Figure 3 It is a partial enlarged cross-sectional view of the tail of the height difference compensation device for the opening bridge;

[0026] Figure 4 This is a partial enlarged view of the connection structure of the height difference compensation device for the opening bridge;

[0027] Numbers in the figure: 1-installing crossbeam; 2-connecting pin; 3-double-hinged connecting load-bearing beam; 4-cover plate; 5-trolley frame; 6-large wheel set; 7-small wheel set; 8-tail plate; 9-right hinge plate; 10-left hinge plate; 11-right hinge plate cover; 12-hinge plate pin; 13-left hinge plate cover; 14-tail plate cover; 15-movable bridge; 16-fixed bridge. DETAILED DESCRIPTION

[0028] The details of the present invention are given below by describing embodiments in conjunction with the accompanying drawings.

[0029] like Figure 1-Figure 4 As shown, the device consists of an installation crossbeam 1, a connecting pin 2, a double-hinged connecting load-bearing beam 3, a cover plate 4, a trolley frame 5, a large wheel group 6, a small wheel group 7, a tail plate 8, a right hinge plate 9, a left hinge plate 10, a right hinge plate cover plate 11, a hinge plate pin 12, a left hinge plate cover plate 13, a tail plate cover plate 14, a movable bridge frame 15 and a fixed bridge frame 16.

[0030] Among them, two groups of connecting pins 2 and mounting crossbeam 1 are symmetrically arranged on the left and right of the double-hinged load-bearing beam 3, and the double-hinged load-bearing beam 3 is connected to the mounting crossbeam 1 through the connecting pin 2; the cover plate 4 is fastened to the trolley frame 5 through hexagon socket screws, and two groups of support plates are symmetrically arranged under the cover plate 4 to strengthen the supporting strength of the cover plate 4 and protect the double-hinged load-bearing beam 3, the connecting pin 2 and the mounting crossbeam 1 from being crushed; the left end face of the mounting crossbeam 1 is fastened to the trolley frame 5 through hexagon socket screws; the trolley frame 5 is provided with transverse grooves and longitudinal grooves, and the large wheel group 6 and the small wheel group 7 are placed at the intersection of the transverse grooves and the longitudinal grooves, and the large wheel group 6 and the small wheel group 7 can roll; the large wheel group 6 is fastened to the trolley frame 5 through a transverse sliding device; the small wheel group 7 is The hexagon socket screw is fastened to the trolley frame 5; the left hinge plate 10 is connected to the right hinge plate 9 through the hinge plate pin 12, and both the right hinge plate 9 and the left hinge plate 10 can rotate around the hinge plate pin 12; the left hinge plate cover plate 13 and the right hinge plate cover plate 11 are symmetrically arranged above the hinge plate pin 12, the right hinge plate 9 is fastened to the right hinge plate cover plate 11 through the hexagon socket screw, and the right hinge plate cover plate 11 is connected to the trolley frame 5 through the hexagon socket screw; the left hinge plate 10 is fastened to the left hinge plate cover plate 13 through the hexagon socket screw, the left hinge plate cover plate 13 is fastened to the tail plate cover plate 14 through the hexagon socket screw, and the tail plate cover plate 14 is connected to the tail plate 8 through the hexagon socket screw; handles are provided on the tail plate cover plate 14 and the cover plate 4 for lifting and installing the height difference compensation device for the opening bridge. When in use, the mounting crossbeam 1 of the present invention is fixedly mounted on the left end surface of the movable bridge frame 15 , and the large wheel set 6 and the small wheel set 7 can fall onto the bridge deck of the fixed bridge frame 16 at the same time.

[0031] The basic principle of the height difference compensation device for the opening bridge of the present invention is:

[0032] 1. The opening action is that the movable bridge is driven to open to the left by power, pushing the height difference compensation device of the entire opening bridge to move. The height difference compensation device is pushed to make the large wheel group and the small wheel group roll on the fixed bridge deck until the movable bridge is completely moved to the opening position.

[0033] 2. The closing action is that the movable bridge is driven to close to the right by power, pulling the entire opening bridge height difference compensation device to move. The height difference compensation device is pulled to make the large wheel group and the small wheel group roll on the fixed bridge deck until the movable bridge is completely moved to the closed position.

[0034] 3. The compensation action is that the height of the movable bridge deck is slightly higher than that of the fixed bridge deck. After the height difference compensation device for the opening bridge is installed and placed, the connecting pin 2 rotates, and the angles of the mounting beam 1 and the double-hinged load-bearing beam 3 are adjusted so that the trolley frame 5 and the higher movable bridge 15 are connected through the connecting mechanism composed of the mounting beam 1, the connecting pin 2, and the double-hinged load-bearing beam 3; the hinge plate pin 12 rotates, and the angles of the right hinge plate 9 and the left hinge plate 10 are adjusted so that the tail plate 8 is connected to the trolley frame 5 when it is in full contact with the bridge deck of the fixed bridge 16 with a lower height; the slope formed by the upper surfaces of the cover plate 4, the trolley frame 5, the right hinge cover plate 11, the left hinge cover plate 13, and the tail plate cover plate 14 completes the height difference compensation from the fixed bridge 15 to the movable bridge 14.

[0035] The specific working process is as follows:

[0036] The height difference compensation device for the open bridge is hoisted to the left side of the movable bridge frame 15 and the bridge deck of the fixed bridge frame 16 through the handles provided on the tailgate cover 14 and the cover 4, and then the right end of the mounting beam 1 is fixedly mounted on the left end of the movable bridge frame 15, and the large wheel group 6 and the small wheel group 7 are made to fall on the bridge deck of the fixed bridge frame 16 at the same time; the connecting mechanism composed of the mounting beam 1, the connecting pin shaft 2 and the double-hinged connecting load-bearing beam 3 rotates, thereby automatically adjusting and compensating the height difference between the movable bridge frame 15 and the fixed bridge frame 16; the vehicles crossing the bridge can pass through the upper surfaces of the cover 4, the trolley frame 5, the right hinged plate cover 11, the left hinged plate cover 13 and the tailgate cover 14, so as to safely pass through the intersection of the movable bridge frame 15 bridge deck and the fixed bridge frame 16 bridge deck where there is a height difference.

[0037] The above is only an example of the application of the present invention in the field of bridge construction. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A height difference compensation device for an opening bridge, characterized in that The device includes a trolley frame located on a fixed bridge frame, a first end of the trolley frame is movably connected to a movable bridge frame through a double-hinged load-bearing beam, a tail plate is provided at the second end of the trolley frame, both ends of the double-hinged load-bearing beam are respectively connected to a mounting crossbeam through connecting pins, a mounting crossbeam at one end of the double-hinged load-bearing beam is connected to the first end of the trolley frame, and a mounting crossbeam at the other end is connected to the movable bridge frame, when the height difference between the movable bridge frame and the fixed bridge frame changes, the connecting pin rotates to change the inclination degree of the double-hinged load-bearing beam to achieve compensation for different height differences.

2. The height difference compensation device for a bascule bridge according to claim 1 is characterized in that A cover plate is provided above the double-hinged load-bearing beam, one end of which is connected to the first end of the trolley frame to cover the double-hinged load-bearing beam and the connecting pins and mounting beams at both ends thereof, so as to protect the double-hinged load-bearing beam, the connecting pins and the mounting beam from being crushed.

3. The height difference compensation device for a bascule bridge according to claim 1 is characterized in that The second end of the trolley frame is connected to the tail plate through a movable connection mechanism, and the movable connection mechanism includes a left hinge plate and a right hinge plate. The left hinge plate is connected to the right hinge plate through a hinge plate pin, and the left hinge plate and the right hinge plate can rotate around the hinge plate pin; the right hinge plate is connected to the trolley frame through a right hinge plate cover plate, and the left hinge plate is connected to the tail plate cover plate arranged on the surface of the tail plate through a left hinge plate cover plate.

4. The height difference compensation device for a bascule bridge according to claim 1 is characterized in that The bottom of the trolley frame is provided with a transverse groove and a longitudinal groove, the large wheel group and the small wheel group are fixed at the intersection of the transverse groove and the longitudinal groove, and a transverse sliding device is also provided on the top of the large wheel group, so that the large wheel group can roll and move transversely along the longitudinal direction, and the small wheel group can roll along the longitudinal direction.

5. The height difference compensation device for a bascule bridge according to claim 1 is characterized in that The cross section of the trolley frame is a right triangle or right trapezoid with a small slope, and its slope is between 3% and 6%; the cross section of the tail board is a right triangle with a small slope, and the longitudinal slope ranges from 8% to 15%.

6. The height difference compensation device for a bascule bridge according to claim 2 is characterized in that Two groups of support plates are symmetrically arranged below the cover plate to enhance the support strength of the cover plate.

7. The height difference compensation device for a bascule bridge according to claim 2 is characterized in that The tail plate and the cover plate are provided with handles for lifting and installing a height difference compensation device for an opening bridge.

8. A method for height difference compensation using the height difference compensation device for a bascule bridge as claimed in claim 1, characterized in that The method comprises the following steps: A. Lift the height difference compensation device for the open bridge to the side of the fixed bridge deck close to the movable bridge, and then install and fix the installation beam at the end of the movable bridge; B. Rotate the connecting pin and hinge plate pin, adjust the angles of the installation beam, double hinge connection load beam, right hinge plate and left hinge plate so that the upper surfaces of the cover plate, trolley frame, double hinge connection load beam cover plate, left and right hinge plate cover plates and tail plate cover plate form a continuous slope, and complete the height difference compensation from the fixed bridge to the movable bridge; C. When the movable bridge is driven to open or close, the height difference compensation device for the opening bridge moves along the fixed bridge deck; D. When the height difference between the movable bridge and the fixed bridge changes, the connecting pin rotates to compensate for the height difference from the fixed bridge to the movable bridge.

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