Installation and positioning method and device for steel bridge patching blocks

Abstract

Provided is a method and device for installing and positioning a steel bridge patch block, including the following steps: installing a suspension unit and a bracket unit, installing a power unit, fixing a motor, starting four motors simultaneously to drag and lift the bracket unit to send the patch block to the installation position, using a guide unit to guide the patch block to slowly enter the installation position, spot welding the patch block after it is lifted into place, and fixing the steel bridge, removing the bracket unit and the suspension unit to complete the installation. The present invention can achieve non-destructive installation of the bridge body and the patch block, without drilling holes to destroy the bridge body structure; it is simple to operate, has high installation accuracy, low safety risks, and high production efficiency, and has significant effects in terms of safe operation and production efficiency, and has high practical and promotion value.

Description

Technical Field

[0001] The invention belongs to the technical field of fixed building bridge connection, and in particular relates to a method and a device for installing and positioning a steel bridge patch block. Background Art

[0002] Steel bridges generally increase the stiffness of steel bridge decks by setting reinforcing ribs to meet the force requirements of steel bridges. During the installation of steel bridges, in order to meet the requirements of staggered joints between adjacent segment bridge decks and reinforcing ribs, patch blocks are often set at the joints of bridge decks. When the weight of the patch blocks is large, installation is extremely difficult. The main reasons are: (1) The space of the steel bridge box is small, and large construction equipment is difficult to deploy in the box; (2) Manual installation is difficult, especially when the patch blocks are in the top plate position, the patch blocks need to be lifted to a high place, which poses a great safety risk; (3) The installation environment in the box is complex, and the quality of manual installation is difficult to guarantee; (4) The production efficiency is low. In this regard, the following technical solutions are proposed. Summary of the invention

[0003] The technical problem solved by the present invention is to provide a method and device for installing and positioning steel bridge patching blocks, so as to solve the technical problems of small installation space, high risk, difficult quality assurance and low production efficiency of steel bridge patching blocks.

[0004] The technical solution adopted by the present invention is a method for installing and positioning a steel bridge patch block, comprising the following steps:

[0005] S001. According to the size of the patch block, the suspension unit is fixedly installed on the steel bridge on the left and right sides of the patch block installation position symmetrically with the left and right axes; the bracket unit is fixedly installed on the patch block symmetrically with the left and right axes;

[0006] S002. Install the power unit and the wire rope: fix one end of the wire rope to the wire rope eye of the bracket unit; the other end of the wire rope is passed around the fixed pulley of the suspension unit and fixedly connected to the winding shaft of the motor in the power unit;

[0007] S003. The four motors in the power unit are fixedly installed at four points coplanarly just below the mounting position of the patch block;

[0008] S004, the four motors in the power unit are started simultaneously, the four motors synchronously reel in the wire ropes to drag and lift the bracket unit, and the bracket unit lifts the patching block and sends the patching block to the installation position;

[0009] S005. After the patching block enters the guide unit at the installation position, the four motors of the power unit decelerate at the same time to slow down the lifting speed;

[0010] S006. The patching block is lifted into place, and the patching block is spot welded to the steel bridge to form a whole;

[0011] S007. Remove the bracket unit on the patch block and the suspension unit on the steel bridge to complete the positioning and installation of the patch block.

[0012] It also includes a steel bridge patching block installation and positioning device used in the steel bridge patching block installation and positioning method, the device includes a suspension unit, a fixing unit, a power unit, a bracket unit and a guide unit; the fixing unit is used to fix the suspension unit on the steel bridge; the fixing unit is used to fix the bracket unit on the patching block, and the bracket unit is used to lift the patching block; the power unit has an electric motor; the motor is wound around one end of a steel wire rope, and after the other end of the steel wire rope is wound around the fixed pulley of the suspension unit, the hanging point end of the steel wire rope is fixedly connected to the bracket unit to lift the bracket unit, and the bracket unit is used to lift the patching block and send the patching block to the installation position under the linear guidance of the guide unit.

[0013] In the above technical scheme, further: the suspension unit includes a U-shaped frame I, and the U-shaped opening I of the U-shaped frame I is plugged and adapted to the steel bridge plate; the vertical frame body I of the U-shaped frame I is symmetrical about the front and rear axes, and fixed pulley hangers that are symmetrical about the front and rear axes and inclined upward are respectively fixedly installed; the fixed pulley hangers are respectively rotatably installed at the inclined top ends; the U-shaped frame I is provided with a clamping unit; the U-shaped frame I is fixedly connected to the steel bridge as a whole through the clamping unit; the U-shaped frame I is also provided with a guide unit; the guide unit provides a linear guide for sending the patch block into the installation position.

[0014] In the above technical solution, further: the inclination angle of the fixed pulley hanger relative to the vertical frame is 25° to 35°.

[0015] In the above technical solution, further: there are two groups of suspension units, and the two groups of suspension units are fixedly installed on the steel bridge on the left and right sides of the patch block installation position respectively, and the two groups of suspension units are symmetrically installed with the patch block installation position as the symmetry axis.

[0016] In the above technical scheme, further: the bracket unit includes a U-shaped frame II, the U-shaped opening II of the U-shaped frame II lifts the bottom of the patching block, and the U-shaped opening II is vertically plugged into and adapted with the patching block; the top of the vertical frame II symmetrical about the front and rear axes of the U-shaped frame II is respectively provided with a fixing unit; the bottom of the vertical frame II is respectively provided with a wire rope lifting ring symmetrical about the front and rear axes; the wire rope lifting ring is fixedly connected with the wire rope.

[0017] In the above technical solution, further: there are two groups of bracket units, the two groups of bracket units horizontally support and lift the patching block, and the two groups of bracket units are fixedly installed on the patching block body symmetrically with the left and right axes.

[0018] In the above technical solution, further: the guide unit is a guide roller; the guide roller is vertically fixed on the vertical inner side of the suspension unit, and there are no less than four groups of guide rollers, and the roller bodies of no less than four groups of guide rollers form a vertical guide channel, which provides a linear guide for the lifting of the embedded block 7.

[0019] In the above technical solution, further: the fixing unit includes a fixing bolt; the suspension unit and the bracket unit are respectively fixedly installed by the fixing bolt.

[0020] In the above technical scheme, further: the power unit includes an electric motor and a steel wire rope; there are four electric motors; the four electric motors are positioned and fixed horizontally and coplanarly at four points directly below the installation position of the patching block; the winding shafts of the four electric motors are respectively connected to and wound with four steel wire ropes of equal length; the four steel wire ropes synchronously lift the bracket unit from four horizontally coplanar lifting points to lift the patching block on the bracket unit.

[0021] The advantages of the present invention compared with the prior art are:

[0022] 1. The patching block of the present invention is directly lifted into place by the device, thus avoiding manual lifting operations and effectively reducing operational safety risks.

[0023] 2. The patch block of the present invention is directly positioned by the guide unit, which improves the installation positioning accuracy and is beneficial to the installation welding quality control of the patch block.

[0024] 3. The use of the device of the present invention for installation and positioning of large patching blocks can effectively reduce the labor intensity of workers and greatly improve production efficiency.

[0025] 4. The device of the present invention is light in weight, and is convenient to install, disassemble and carry, and is suitable for the installation of embedded patch blocks in bridge boxes with narrow spaces.

[0026] 5. The present invention can install the bridge body and the patching blocks without drilling holes to damage the bridge body structure; it is simple to operate, has high installation accuracy, low safety risks, and high production efficiency, and has significant effects in terms of safe operation and production efficiency, and has high practical and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A three-dimensional diagram of a partial unit of the device of the present invention;

[0028] Figure 2 is a three-dimensional diagram of the suspension unit of the present invention;

[0029] Figure 3 This is a three-dimensional diagram of the installation and use status of the suspension unit of the present invention on a steel bridge;

[0030] Figure 4 is a three-dimensional diagram of a bracket unit of the present invention;

[0031] Figure 5 A three-dimensional diagram of the installation and use state of the bracket unit of the present invention on the patch block;

[0032] Figure 6This is a schematic diagram of the suspension unit, bracket unit and power unit of the present invention being assembled;

[0033] Figure 7 This is a schematic diagram of the use state of the patching block of the present invention entering the guide system;

[0034] Figure 8 This is a schematic diagram of the use state of the patching block of the present invention being lifted into place;

[0035] In the figure: 1-suspension unit, 2-fixed unit, 3-power unit, 4-bracket unit, 5-guide unit, 6-steel bridge, 7-patch block; 11-fixed pulley; 13-fixed pulley suspension rod; 21-tightening bolt, 31-motor, 32-wire rope; 12-U-shaped frame Ⅰ, 121-U-shaped opening Ⅰ, 122-vertical frame Ⅰ; 41-U-shaped frame Ⅱ, 411-U-shaped opening Ⅱ, 412-vertical frame Ⅱ; 413-wire rope lifting ring; 51-guide roller, 52-guide channel; 31-motor, 32-wire rope. DETAILED DESCRIPTION

[0036] The following will be combined with the attached embodiment of the present invention Figure 1-8 , the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] A method for installing and positioning a steel bridge patch block, characterized in that it comprises the following steps: (combined with Figure 6 , Figure 7 , Figure 8 )

[0038] Step S001: According to the size of the patch block 7, the suspension unit 1 is fixedly installed on the steel bridge 6 on the left and right sides of the patch block 7 installation position in a left-right axisymmetric manner; the bracket unit 4 is fixedly installed on the patch block 7 in a left-right axisymmetric manner. The suspension unit 1 is arranged in an axisymmetric manner to enhance stability.

[0039] Step S002, installing the power unit 3 and the wire rope 32: fixing one end of the wire rope 32 to the wire rope eye 413 of the bracket unit 4; the other end of the wire rope 32 passes around the fixed pulley 11 of the suspension unit 1 and is fixedly connected to the winding shaft of the motor 31 in the power unit 3.

[0040] Step S003, the four motors 31 in the power unit 3 are fixedly mounted on the ground directly below the mounting position of the patch block 7 at four points in the same plane, which provides a guarantee for smooth lifting.

[0041] Step S004, the four motors 31 in the power unit 3 are started simultaneously, and the four motors 31 respectively wind up four steel wire ropes 32 of equal length to synchronously drag the lifting bracket unit 4 from four lifting points through the four steel wire ropes 32, and the bracket unit 4 lifts the patching block 7 and sends the patching block 7 close to the installation position. Synchronous lifting and winding ensures smooth lifting.

[0042] Step S005: After the patching block 7 enters the guide unit 5 at the installation position, the four motors 31 of the power unit 3 are decelerated at the same time to slow down the lifting speed. Guided by the guide unit, the installation accuracy is improved and the quality consistency is guaranteed.

[0043] Step S006: The patch block 7 is lifted into place, and the patch block 7 is spot welded and fixedly connected to the steel bridge 6. This replaces manual position maintenance, is easy and labor-saving, stable, safe and reliable.

[0044] Step S007: Remove the bracket unit 4 on the patch block 7 and the suspension unit 1 on the steel bridge 6 to complete the positioning and installation of the patch block 7. The device is recovered and prepared for use in the next station.

[0045] (like Figures 1 to 6 (as shown) also includes a steel bridge patch block installation and positioning device used in a steel bridge patch block installation and positioning method.

[0046] The device comprises a suspension unit 1 , a fixing unit 2 , a power unit 3 , a bracket unit 4 and a guide unit 5 .

[0047] The fixing unit 2 is used to fix and install the suspension unit 1 on the steel bridge 6. The fixing unit 2 is used to fix and install the bracket unit 4 on the patching block 7, and the bracket unit 4 is used to lift the patching block 7.

[0048] The power unit 3 has an electric motor 31; the electric motor 31 is wound around one end of a steel wire rope 32, and after the other end of the steel wire rope 32 passes around the fixed pulley 11 of the suspension unit 1, the hanging point end of the steel wire rope 32 is fixedly connected to the bracket unit 4 to lift the bracket unit 4, and the bracket unit 4 is used to lift the patching block 7 and send the patching block 7 to the installation position under the linear guidance of the guide unit 5.

[0049] In the above embodiment, further: (such as Figure 6 As shown in FIG. 1 , the suspension unit 1 includes a U-shaped frame Ⅰ12, and a U-shaped opening Ⅰ121 of the U-shaped frame Ⅰ12 is plugged and adapted to the steel bridge plate 6; the U-shaped frame Ⅰ can be as Figure 6 It can be installed by plugging and fixing from the bottom of the steel bridge 6, or it can be installed upside down on the steel bridge 6. When it is installed upside down, the fixed pulley hanger 13 on the U-shaped frame I 12 is still matched and fixedly installed with an upward tilt. The U-shaped frame I 12 is made of welded steel plates. The structural support is stable and the structural strength is high.

[0050] The U-shaped frame I12 is respectively fixedly mounted with the vertical frame bodies I122 which are symmetrical with respect to the front and rear axes and are tilted upwards with the fixed pulley suspension rods 13 which are respectively rotatably mounted with the fixed pulleys 11 at the tilted top ends thereof.

[0051] In the above embodiment, further: the inclination angle of the fixed pulley suspension rod 13 relative to the vertical frame body Ⅰ122 is 25° to 35°.

[0052] The U-shaped frame Ⅰ12 is provided with a fixing unit 2; the U-shaped frame Ⅰ12 is fixedly connected to the steel bridge 6 through the fixing unit 2.

[0053] In the above embodiment, further: there are two groups of suspension units 1, and the two groups of suspension units 1 are respectively fixedly installed on the steel bridge 6 on the left and right sides of the installation position of the patch block 7, and the two groups of suspension units 1 are symmetrically installed with the installation position of the patch block 7 as the symmetry axis.

[0054] When in use, after starting four motors at the same time, the bracket unit is dragged up. During the rising process, the fixed pulley hanger 13 of the suspension unit uses the lever principle to give an auxiliary clamping force to the ribs of the steel bridge 6 to prevent the suspension unit from sliding down; at the same time, the fixed pulley 11 is tilted toward the side of the patch block 7 at an angle of 25° to 35° to ensure that the wire rope is always in the fixed pulley track during the rising process of the patch block 7 to prevent it from falling off.

[0055] In the above embodiment, further: the fixing unit 2 includes a fixing bolt 21; the suspension unit 1 and the bracket unit 4 are respectively fixedly installed by the fixing bolt 21. The fixing bolt 21 is used to fix the suspension unit 1 and the bracket unit 4, which is convenient for installation and disassembly.

[0056] It should be noted that the suspension unit 1 of the device should be strong enough to ensure that it can withstand the force requirements of the patch block 7 and the device itself during lifting; before lifting, the patch block 7 and the bracket unit 4 should be directly below the lifting device to avoid unbalanced loading.

[0057] To improve the positioning and installation accuracy: the U-shaped frame Ⅰ12 is also provided with a guide unit 5; the guide unit 5 provides a linear guide for the patch block 7 to be sent into the installation position. The guide unit 5 here includes a vertically arranged guide rail.

[0058] In the above embodiment, further: the bracket unit 4 includes a U-shaped frame Ⅱ41, the U-shaped opening Ⅱ411 of the U-shaped frame Ⅱ41 supports the bottom of the patching block 7, and the U-shaped opening Ⅱ411 is vertically plugged and adapted with the patching block 7; the top of the vertical frame body Ⅱ412 symmetrical about the front and rear axes of the U-shaped frame Ⅱ41 is respectively provided with a fixing unit 2; the bottom of the vertical frame body Ⅱ412 is respectively provided with a wire rope eyelet 413 symmetrical about the front and rear axes; the wire rope eyelet 413 is fixedly connected to the wire rope 32.

[0059] In the above embodiment, further: the bracket units 4 have two groups, the two groups of bracket units 4 support the patch block 7 horizontally, and the two groups of bracket units 4 are fixedly installed on the patch block 7 with left-right axis symmetry. The bracket units 4 of the U-shaped frame II 41 have a simple structure, convenient installation, and stable support.

[0060] In the above embodiment, further: the guide unit 5 is a guide roller 51; the guide roller 51 is vertically fixedly installed on the vertical inner side of the suspension unit 1, and there are no less than four groups of guide rollers 51, and the roller bodies of no less than four groups of guide rollers 51 form a vertical guide channel 52, and the guide channel 52 provides a linear guide for the lifting of the patch block 7. The use of the guide roller 51 to provide a linear guide has a simple structure and a small friction resistance for the guide lifting.

[0061] In the above embodiment, further: the power unit 3 includes an electric motor 31 and a steel wire rope 32; there are four electric motors 31; the four electric motors 31 are positioned horizontally and coplanarly and fixedly installed at four points directly below the installation position of the patching block 7; the winding shafts of the four electric motors 31 are respectively connected to and wound with four steel wire ropes 32 of equal length; the four steel wire ropes 32 respectively and synchronously lift the bracket unit 4 from four horizontally coplanar lifting points to stably lift the patching block 7 on the bracket unit 4.

[0062] To ensure synchronization, the four motors 31 are connected in series and share a switch and then connected to a power supply circuit to achieve synchronization.

[0063] From the above description, it can be found that: first, the suspension unit and the bracket unit of the present invention do not need to drill holes on the existing bridge structure to destroy the bridge structure. Fixation is achieved by combining snap-in and plug-in with tightening, which effectively ensures the integrity of the bridge body and the structural strength.

[0064] Furthermore, the patching block of the present invention is directly lifted into place by the device, which avoids manual lifting operations and can effectively reduce operational safety risks. The patching block of the present invention is directly positioned by the guide unit, which improves the installation alignment and positioning accuracy, and is beneficial to the quality control of the patching block installation welding. The use of the device of the present invention for installation and positioning of large patching blocks can effectively reduce the labor intensity of workers and greatly improve production efficiency. The device of the present invention is light in weight, and is relatively convenient to install, disassemble and carry, and is suitable for the installation of patching blocks in bridge boxes with narrow spaces.

[0065] In summary, the present invention can install the bridge body and the patching blocks non-destructively without drilling holes to destroy the bridge body structure; it is simple to operate, has high installation accuracy, low safety risks, and high production efficiency, and has significant effects in terms of safe operation and production efficiency, and has high practical and promotion value.

[0066] Each embodiment in this specification is described in a related manner, and the same or similar parts between the embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the protection scope of the present invention.

Claims

1. A steel bridge patching block installation and positioning device, characterized in that: The invention comprises a suspension unit (1), a fixing unit (2), a power unit (3), a bracket unit (4) and a guide unit (5); the fixing unit (2) is used to fix the suspension unit (1) on a steel bridge (6); the fixing unit (2) is used to fix the bracket unit (4) on a patching block (7), and the bracket unit (4) is used to lift the patching block (7); the power unit (3) has an electric motor (31); the electric motor (31) is wound around one end of a steel wire rope (32), and after the other end of the steel wire rope (32) passes around a fixed pulley (11) of the suspension unit (1), the hanging point end of the steel wire rope (32) is fixedly connected to the bracket unit (4) to lift the bracket unit (4), and the bracket unit (4) is used to lift the patching block (7) and send the patching block (7) into the installation position under the linear guidance of the guide unit (5); The suspension unit (1) comprises a U-shaped frame I (12), wherein the U-shaped opening I (121) of the U-shaped frame I (12) is plugged and adapted to the plate of the steel bridge (6); the vertical frame body I (122) of the U-shaped frame I (12) which is symmetrical about the front and rear axes respectively fixes and installs fixed pulley hangers (13) which are symmetrical about the front and rear axes and tilted upward; the fixed pulleys (11) are respectively rotatably installed at the tilted top ends of the fixed pulley hangers (13); the U-shaped frame I (12) is provided with a fixing unit (2); the U-shaped frame I (12) is fixedly connected to the steel bridge (6) as a whole through the fixing unit (2); the U-shaped frame I (12) is also provided with a guide unit (5); the guide unit (5) provides a linear guide for sending the patch block (7) into the installation position.

2. The steel bridge patching block installation and positioning device according to claim 1 is characterized in that: The inclination angle of the fixed pulley suspension rod (13) relative to the vertical frame body I (122) is 25° to 35°.

3. The steel bridge patching block installation and positioning device according to claim 1 is characterized in that: The suspension units (1) have two groups, and the two groups of suspension units (1) are respectively fixedly installed on the steel bridge (6) on the left and right sides of the patch block (7) installation position, and the two groups of suspension units (1) are symmetrically installed with the patch block (7) installation position as the symmetry axis.

4. The steel bridge patching block installation and positioning device according to claim 1 is characterized in that: The bracket unit (4) comprises a U-shaped frame II (41), wherein a U-shaped opening II (411) of the U-shaped frame II (41) supports the bottom of the patching block (7), and the U-shaped opening II (411) is vertically plugged and adapted with the patching block (7); the tops of the vertical frames II (412) symmetrical about the front and rear axes of the U-shaped frame II (41) are respectively provided with fixing units (2); the bottoms of the vertical frames II (412) are respectively provided with wire rope eyelets (413) symmetrical about the front and rear axes; the wire rope eyelets (413) are fixedly connected to the wire rope (32).

5. The steel bridge patching block installation and positioning device according to claim 4 is characterized in that: The bracket units (4) have two groups, the two groups of bracket units (4) support and lift the patching block (7) horizontally, and the two groups of bracket units (4) are fixedly mounted on the patching block (7) body in a symmetrical manner with respect to the left and right axes.

6. The steel bridge patching block installation and positioning device according to claim 1 is characterized in that: The guide unit (5) is a guide roller (51); the guide roller (51) is vertically fixedly installed on the vertical inner side surface of the suspension unit (1); there are no less than four groups of guide rollers (51); the roller bodies of the no less than four groups of guide rollers (51) form a vertical guide channel (52); the guide channel (52) provides a linear guide for lifting the patch block (7).

7. The steel bridge patching block installation and positioning device according to claim 1 or 4, characterized in that: The fixing unit (2) comprises a fixing bolt (21); the suspension unit (1) and the bracket unit (4) are respectively fixedly installed by the fixing bolt (21).

8. The steel bridge patching block installation and positioning device according to claim 1 is characterized in that: The power unit (3) comprises an electric motor (31) and a steel wire rope (32); there are four electric motors (31); the four electric motors (31) are positioned horizontally and coplanarly fixedly installed at four points directly below the mounting position of the patching block (7); the winding shafts of the four electric motors (31) are respectively connected to and wound with four steel wire ropes (32) of equal length; the four steel wire ropes (32) respectively and synchronously lift the bracket unit (4) from four horizontal coplanar lifting points to lift the patching block (7) on the bracket unit (4).

9. A method for installing and positioning a steel bridge patch block, using the steel bridge patch block installation and positioning device as claimed in any one of claims 1 to 8, characterized in that: The steps include: S001. According to the size of the patch block (7), the suspension unit (1) is fixedly installed on the steel bridge (6) on the left and right sides of the patch block (7) installation position in a symmetrical manner; the bracket unit (4) is fixedly installed on the patch block (7) in a symmetrical manner; S002, installing the power unit (3) and the steel wire rope (32): one end of the steel wire rope (32) is fixedly connected to the steel wire rope eye (413) of the bracket unit (4); the other end of the steel wire rope (32) is passed around the fixed pulley (11) of the suspension unit (1) and then fixedly connected to the winding shaft of the motor (31) in the power unit (3); S003, four motors (31) in the power unit (3) are fixedly mounted in a coplanar manner at four points directly below the mounting position of the patch block (7); S004, the four motors (31) in the power unit (3) are started simultaneously, the four motors (31) synchronously reel in the steel wire ropes (32) to drag and lift the bracket unit (4), and the bracket unit (4) lifts the patching block (7) and sends the patching block (7) to the installation position; S005, after the patching block (7) enters the guide unit (5) at the installation position, the four motors (31) of the power unit (3) are decelerated simultaneously to slow down the lifting speed; S006, the patch block (7) is lifted into place, and the patch block (7) and the steel bridge (6) are spot welded and fixedly connected into one; S007, remove the bracket unit (4) on the patching block (7) and the suspension unit (1) on the steel bridge (6), and complete the positioning and installation of the patching block (7).

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