An auxiliary support device for bridge erection

Abstract

This invention discloses an auxiliary support device for bridge erection, including a bridge erecting equipment crossbeam, a support structure below the crossbeam, and a translation structure on the crossbeam. The translation structure includes a concave connecting frame and a translation drive mechanism. The concave connecting frame has an installation slot at its end, within which a rail roller is rotatably mounted. A connecting structure connects the translation structure and the support structure, including a fixing block. A T-shaped connecting rod is inserted at the top of the fixing block, and a connecting plate is fixedly mounted at the bottom of the T-shaped connecting rod. A hydraulic cylinder is mounted at the bottom of the connecting plate. This invention improves the smoothness of movement of the translation structure on the bridge erecting equipment crossbeam by incorporating the concave connecting frame, installation slot, and rail roller. Combined with the connecting structure between the translation structure and the support structure, it allows for separation of the support structure from the bridge erecting equipment crossbeam during movement, thereby improving the effectiveness of the auxiliary support device.

Description

Technical Field

[0001] This invention relates to the field of bridge erection equipment technology, and in particular to an auxiliary support device for bridge erection. Background Technology

[0002] During the construction of a bridge, prefabricated beams need to be placed on prefabricated piers. Currently, bridge erection equipment is generally used to erect the beams on the piers.

[0003] Traditional bridge erecting equipment is generally equipped with auxiliary support devices. These devices move on the crossbeams of the bridge erecting equipment to provide auxiliary support at different positions of the main body of the bridge erecting equipment, thus maintaining the stability of the bridge erecting equipment.

[0004] In the existing technology, the auxiliary support device currently used on the bridge erecting equipment has a large frictional resistance with the bridge erecting equipment when it moves on the crossbeam of the bridge erecting equipment. This results in a large motion power of the auxiliary support device when it moves on the crossbeam of the bridge erecting equipment, which leads to a large power consumption. At the same time, the auxiliary support device wears out more with the increase of the usage time, which not only shortens its service life, but also reduces the auxiliary support effect of the auxiliary support device on the bridge erecting equipment. Therefore, the use effect and service life of the auxiliary support device are reduced. Summary of the Invention

[0005] The purpose of this invention is to provide an auxiliary support device for bridge erection to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary support device for bridge erection, comprising: A crossbeam for bridge erecting equipment, with a supporting structure provided below the crossbeam; The bridge erecting equipment has a translation structure on its crossbeam for driving the support structure to move. The translation structure includes a concave connecting frame and a translation drive mechanism. The translation drive mechanism is fixedly installed at the top of the bridge erecting equipment crossbeam and is used to drive the concave connecting frame to move. The bottom end of the concave connecting frame has two mounting slots, and rail rollers are rotatably installed in the mounting slots. A connecting structure is provided between the translation structure and the support structure. The connecting structure includes a fixing block fixedly installed on both sides of the concave connecting frame. Two T-shaped connecting rods are symmetrically slidably inserted at the top of the fixing block. A connecting plate is fixedly installed at the bottom of the T-shaped connecting rod. Two hydraulic cylinders are symmetrically fixedly installed at the bottom of the connecting plate.

[0007] Preferably, strip plates are fixedly connected to the bottom of both sides of the crossbeam of the bridge erecting equipment, and strip guide rails are fixedly connected to the middle of the top of the two strip plates. The outer wall of the strip guide rails is slidably interlocked with the corresponding rail rollers.

[0008] Preferably, a rotating shaft is rotatably inserted at the center of the rail roller via a bearing, the two ends of the rotating shaft are fixedly connected to the inner walls of the two sides of the mounting slot, and a reinforcing rib is fixedly inserted in the middle of the rotating shaft.

[0009] Preferably, a first spring is sleeved on the outer wall of the T-shaped connecting rod, and the two ends of the first spring are fixedly connected to the opposite side of the fixing block and the connecting plate, respectively. A positioning sensor is fixedly embedded at the top of the connecting plate, and the positioning sensor is electrically connected to the hydraulic cylinder.

[0010] Preferably, the translation drive mechanism includes a mounting housing, a translation screw is rotatably disposed on the bottom of the inner side of the mounting housing, a translation connecting block is threaded through the outer wall of the translation screw, the bottom end of the translation connecting block is fixedly connected to the top end of the concave connecting frame, a servo motor that is drivenly connected to the translation screw is fixedly disposed on one side of the mounting housing, and a guide rod that slides through the translation connecting block is fixedly disposed on the top of the inner side of the mounting housing.

[0011] Preferably, the support structure includes a horizontal column, the top of which is fixedly connected to the telescopic end of the hydraulic cylinder, and a bearing base plate is fixedly provided below the horizontal column, the bearing base plate being in the shape of an isosceles trapezoid.

[0012] Preferably, multiple sets of diagonal bracing columns are arranged parallel to each other between the horizontal column and the supporting base plate. Each set of diagonal bracing columns consists of two columns arranged in an inverted V-shape. The two ends of the diagonal bracing columns are fixedly connected to the opposite side of the horizontal column and the supporting base plate, respectively.

[0013] Preferably, an auxiliary support structure is provided between the connecting plate and the cross column. The auxiliary support structure includes two sets of hinge rods. The two sets of hinge rods are fixedly installed on opposite sides of the connecting plate and the cross column, respectively. Each set of hinge rods consists of two rods and is symmetrically arranged. A hollow cross column is rotatably installed between the ends of the two hinge rods at opposite vertical positions. An elastic telescopic member is fixedly installed between the two hollow cross columns.

[0014] Preferably, the elastic telescopic member comprises a limiting slide rod and a second spring. The limiting slide rod and the outer wall are respectively slidably interlocked with two hollow cross columns. The second spring is sleeved on the outer wall of the limiting slide rod, and the two ends of the second spring are respectively fixedly connected to the opposite ends of the two hollow cross columns.

[0015] Preferably, the bottom of the mounting housing is provided with protrusions on both sides, and the width between the mounting housing and the crossbeam of the bridging equipment matches the thickness of the concave connecting frame.

[0016] The technical effects and advantages of this invention are as follows: (1) By setting the concave connecting frame, the mounting slot and the rail roller in the translation structure on the crossbeam of the bridge erecting equipment, the present invention can reduce the frictional resistance between the concave connecting frame and the crossbeam of the bridge erecting equipment and improve its smoothness of movement. In addition, with the connection structure between the translation structure and the support structure consisting of a fixed block, a T-shaped connecting rod, a connecting plate and a hydraulic cylinder, the connection between the two can be realized at the same time, and the separation between the support structure and the crossbeam of the bridge erecting equipment can be realized when the support structure moves. This avoids the frictional resistance caused by the contact between the two, which leads to increased power consumption and wear, affecting its service life and cost of use, thereby improving the use effect of the auxiliary support device. (2) The present invention utilizes multiple sets of diagonal bracing columns set between the horizontal column and the bearing base plate in the support structure. Each set consists of two inverted V-shaped diagonal bracing columns, which can not only reduce the overall weight of the support structure and facilitate the lifting of the support structure by the connecting structure, but also enhance the support strength of the support structure for the crossbeam of the bridge erecting equipment, thereby enhancing the auxiliary support effect on the crossbeam of the bridge erecting equipment. (3) The present invention supports the rail rollers by setting strip plates and strip guide rails on both sides of the crossbeam of the bridge erecting equipment, which can limit the bearing and guide the translation of the concave connecting frame, increase its smoothness and stability, and eliminate the load on the concave connecting frame of the translation drive mechanism in the translation mechanism, further reducing the power consumption of the translation drive mechanism on the translation drive of the concave connecting frame, so as to save energy and enhance the use effect. Attached Figure Description

[0017] Figure 1 This is a partial three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a partial cross-sectional view of the front of the translation drive mechanism of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the connection structure of the present invention.

[0020] Figure 4 This is a side cross-sectional view of the concave connecting frame of the present invention.

[0021] Figure 5 This is a schematic diagram of the side structure of the connecting plate of the present invention.

[0022] Figure 6 For the present invention Figure 5 A magnified schematic diagram of the structure at point A.

[0023] Figure 7 This is a three-dimensional structural diagram of the support structure of the present invention.

[0024] In the diagram: 1. Bridge erecting equipment crossbeam; 11. Strip plate; 12. Strip guide rail; 2. Support structure; 21. Horizontal column; 22. Bearing base plate; 23. Diagonal brace column; 3. Translation structure; 31. Mounting housing; 32. Translation screw; 33. Translation connecting block; 34. Servo motor; 35. Concave connecting frame; 36. Mounting slot; 37. Rotating shaft; 38. Guide rod; 39. Rail roller; 4. Connection structure; 41. Fixing block; 42. T-shaped connecting rod; 43. Connecting plate; 44. First spring; 45. Hydraulic cylinder; 46. Hinge rod; 47. Hollow horizontal column; 471. Limiting slide rod; 48. Position sensor; 49. Second spring. Detailed Implementation

[0025] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0026] This invention provides, for example Figure 1-7 The auxiliary support device for bridge erection shown includes a bridge erection equipment beam 1. A support structure 2 is provided below the bridge erection equipment beam 1. The support structure 2 includes a horizontal column 21. The top of the horizontal column 21 is fixedly connected to the telescopic end of a hydraulic cylinder 45. A bearing base plate 22 is fixedly provided below the horizontal column 21. The bearing base plate 22 is in the shape of an isosceles trapezoid. The shape of the bearing base plate 22 makes the support more stable and has an anti-tipping function. Multiple sets of diagonal bracing columns 23 are arranged parallel to each other between the horizontal column 21 and the bearing base plate 22. Each set of diagonal bracing columns 23 consists of two columns arranged in an inverted V shape. The two ends of the diagonal bracing columns 23 are fixedly connected to the opposite side of the horizontal column 21 and the bearing base plate 22, respectively. The inverted V-shape of each set of diagonal bracing columns 23 can utilize the principle of triangular support to increase the load-bearing capacity of the support structure 2, while reducing the material used in the entire support structure 2, reducing costs, and increasing support strength. A translation structure 3 is provided on the crossbeam 1 of the bridge erecting equipment to drive the translation of the supporting structure 2. The translation structure 3 includes a concave connecting frame 35 and a translation drive mechanism. The translation drive mechanism is fixedly installed at the top of the crossbeam 1 of the bridge erecting equipment and is used to drive the translation of the concave connecting frame 35. The bottom ends of the concave connecting frame 35 are provided with mounting slots 36. Rail rollers 39 are rotatably installed in the mounting slots 36. Strip plates 11 are fixedly connected to the bottom of both sides of the crossbeam 1 of the bridge erecting equipment. Strip guide rails 12 are fixedly connected to the middle of the top of the two strip plates 11. The outer wall of the strip guide rails 12 slides and intersects with the corresponding rail rollers 39. The rail roller 39 is engaged with the strip guide rail 12 on the strip plate 11, so that the rail roller 39 rolls on the strip guide rail 12 to play a moving guiding role, increasing the smoothness and stability of the translation structure 3. A rotating shaft 37 is rotatably inserted at the axis of the rail roller 39 through the bearing. The two ends of the rotating shaft 37 are fixedly connected to the inner walls of the two sides of the mounting slot 36, respectively. A reinforcing rib is fixedly inserted in the middle of the rotating shaft 37. The rotation and installation of the rail roller 39 by the rotating shaft 37 with the reinforcing rib in the middle and the bearing can improve the load of the rail roller 39, meet the support requirements, and enhance the practicality of the structure. The translation drive mechanism includes a mounting housing 31. A translation screw 32 is rotatably mounted on the bottom inner side of the mounting housing 31. A translation connecting block 33 is threaded through the outer wall of the translation screw 32. The bottom end of the translation connecting block 33 is fixedly connected to the top end of the concave connecting bracket 35. A servo motor 34, which is driven by the translation screw 32, is fixedly mounted on one side of the mounting housing 31. A guide rod 38, which slides through the translation connecting block 33, is fixedly mounted on the top inner side of the mounting housing 31. Protrusions are provided on both sides of the bottom end of the mounting housing 31. The mounting housing 31 and the bridge... The width between the equipment beams 1 matches the thickness of the concave connecting frame 35. By using the bottom end of the mounting shell 31 in the translation drive mechanism as the translation output end connection point, the translation drive mechanism can be rainproof and dustproof, increasing the protection of the translation screw 32 and translation connecting block 33 inside the mounting shell 31. The servo motor 34 drives the translation screw 32 to rotate clockwise or counterclockwise, and the guide rod 38 guides the movement of the translation connecting block 33, so that the translation connecting block 33 can stably drive the concave connecting frame 35 to translate. A connecting structure 4 is provided between the translation structure 3 and the supporting structure 2. The connecting structure 4 includes fixed blocks 41 fixedly installed on both sides of the concave connecting frame 35. Two T-shaped connecting rods 42 are symmetrically slidably inserted at the top of the fixed blocks 41. The connecting plates 43 are connected by the T-shaped connecting rods 42 sliding on the fixed blocks 41. In the initial position, the connecting plates 43 use their own weight to make the T-shaped connecting rods 42 slide to the lowest position to connect the connecting plates 43. This ensures that the top of the connecting plates 43 does not contact the bottom of the crossbeam 1 of the bridge erecting equipment, thereby eliminating frictional resistance. The T-shaped connecting rods 42... A connecting plate 43 is fixedly installed at the bottom end. Two hydraulic cylinders 45 are symmetrically fixedly installed at the bottom end of the connecting plate 43. The hydraulic cylinders 45 can lift or lower the support structure 2 to facilitate the separation of the support structure 2 from the ground for easy operation. At the same time, after the support structure 2 contacts the ground, the connecting plate 43 can be lifted again to make the connecting plate 43 contact the bottom end of the bridge erecting equipment beam 1. This achieves support for the bridge erecting equipment beam 1, which reduces the frictional resistance when the support structure 2 moves, while maintaining the stable support of the support structure 2 for the bridge erecting equipment beam 1, reducing energy consumption and lowering the operating cost. A first spring 44 is sleeved on the outer wall of the T-shaped connecting rod 42. The two ends of the first spring 44 are fixedly connected to the opposite side of the fixing block 41 and the connecting plate 43, respectively. The first spring 44 plays the role of automatic reset and increases the stability of the resetting of the connecting plate 43. A position sensor 48 is fixedly embedded at the top of the connecting plate 43. The position sensor 48 is electrically connected to the hydraulic cylinder 45. The position sensor 48 can monitor whether the connecting plate 43 is in contact with the bottom end of the crossbeam 1 of the bridge erecting equipment. When the connecting plate 43 contacts the crossbeam 1 of the bridge erecting equipment, the hydraulic cylinder 45 is automatically controlled to close and stop the extension, which enhances the overall automation level and avoids damage to the components caused by excessive extension of the hydraulic cylinder 45.

[0027] An auxiliary support structure is provided between the connecting plate 43 and the horizontal column 21. The auxiliary support structure includes two sets of hinge rods 46. The two sets of hinge rods 46 are fixedly installed on opposite sides of the connecting plate 43 and the horizontal column 21, respectively. Each set of hinge rods 46 consists of two rods and is symmetrically arranged. A hollow horizontal column 47 is rotatably installed between the ends of the two hinge rods 46 at opposite positions. An elastic telescopic member is fixedly installed between the two hollow horizontal columns 47. By cooperating with the hinge rods 46 and the hollow horizontal column 47, when the hydraulic cylinder 45 extends or retracts, it can drive the two adjacent hinge rods 46 to rotate and unfold or retract, thereby achieving auxiliary connection and support between the connecting plate 43 and the horizontal column 21 and increasing the overall stability of the auxiliary support device. The elastic telescopic component consists of a limiting slide rod 471 and a second spring 49. The second spring 49 is an elastic tension spring, which is in a stretched state in the initial position. The limiting slide rod 471 and the outer wall are respectively slidably interlocked with the two hollow horizontal columns 47. The second spring 49 is sleeved on the outer wall of the limiting slide rod 471. The two ends of the second spring 49 are respectively fixedly connected to the opposite ends of the two hollow horizontal columns 47. Through the elastic restoring force of the second spring 49, the hinge rod 46 can play an auxiliary support role between the connecting plate 43 and the horizontal column 21, thereby achieving auxiliary support for the connecting plate 43 and enhancing the stability of the connection between the support structure 2 and the connecting structure 4.

[0028] The working principle of this invention is as follows: Initially, the hydraulic cylinder 45 is kept in a shortened state, so that the bottom end of the support structure 2 is separated from the ground. The T-shaped connecting rod 42 is used to connect and support the connecting plate 43, so that the top end of the connecting plate 43 is separated from the crossbeam 1 of the bridge erecting equipment. Then, the rail roller 39 rolls on the strip guide rail 12 on the strip plate 11, so that the concave connecting frame 35 does not contact the top end of the crossbeam 1 of the bridge erecting equipment. When the servo motor 34 is powered on and rotates clockwise or counterclockwise, it drives the translation screw 32 to rotate, thereby driving the translation connecting block 33 to move, driving the concave connecting frame 35 to move horizontally, and driving the rail roller 39 to move on the strip guide rail 12. Thus, the supporting structure 2 is driven to move horizontally through the connecting structure 4, adjusting the position of the auxiliary support device on the crossbeam 1 of the bridge erecting equipment. When auxiliary support is needed, the hydraulic cylinder 45 extends. The extension of the hydraulic cylinder 45 first drives the lower support structure 2 to contact the ground. After the support structure 2 contacts the ground, the hydraulic cylinder 45 continues to extend. At this time, the hydraulic cylinder 45 lifts the upper connecting plate 43, so that the connecting plate 43 contacts the bottom end of the bridge erecting equipment crossbeam 1. At the same time that the connecting plate 43 contacts the bridge erecting equipment crossbeam 1, the position sensor 48 senses the position and closes the hydraulic cylinder 45 through the control unit, thereby realizing the support of the support structure 2 on the bridge erecting equipment crossbeam 1. At the same time, the opposite movement of the connecting plate 43 and the supporting structure 2 causes the two hinge rods 46 on the same hollow cross column 47 to rotate and unfold, which shortens the distance between the two hollow cross columns 47. The second spring 49 on the limiting slide rod 471 gradually returns to its original state from the tensile deformation state. By utilizing the elastic restoring effect of the second spring 49, auxiliary support is provided to the connecting plate 43, further enhancing the stability of the support for the cross beam 1 of the bridge erecting equipment.

[0029] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An auxiliary support device for bridge erection, comprising: A bridge erecting equipment beam (1) is provided with a support structure (2) below the bridge erecting equipment beam (1). The features are as follows: the bridge erecting equipment crossbeam (1) is provided with a translation structure (3) for driving the support structure (2) to translate. The translation structure (3) includes a concave connecting frame (35) and a translation driving mechanism. The translation driving mechanism is fixedly set at the top of the bridge erecting equipment crossbeam (1) and is used to drive the concave connecting frame (35) to translate. The concave connecting frame (35) has two mounting slots (36) at its bottom ends. A rail roller (39) is rotatably set in the mounting slot (36). The bottom of both sides of the bridge erecting equipment crossbeam (1) is fixedly connected with strip plates (11). The middle of the top of the two strip plates (11) is fixedly connected with strip guide rails (12). The outer wall of the strip guide rail (12) and the corresponding rail roller (39) are slidably interlocked. A connecting structure (4) is provided between the translation structure (3) and the support structure (2). The connecting structure (4) includes a fixing block (41) fixedly installed on both sides of the concave connecting frame (35). Two T-shaped connecting rods (42) are symmetrically slidably inserted at the top of the fixing block (41). A connecting plate (43) is fixedly installed at the bottom of the T-shaped connecting rod (42). Two hydraulic cylinders (45) are symmetrically fixedly installed at the bottom of the connecting plate (43).

2. The auxiliary support device for bridge erection according to claim 1, characterized in that, The rail roller (39) has a rotating shaft (37) inserted through a bearing at its axis. The two ends of the rotating shaft (37) are fixedly connected to the inner walls of the two sides of the mounting slot (36), and a reinforcing rib is fixedly inserted in the middle of the rotating shaft (37).

3. The auxiliary support device for bridge erection according to claim 1, characterized in that, The outer wall of the T-shaped connecting rod (42) is fitted with a first spring (44). The two ends of the first spring (44) are fixedly connected to the opposite side of the fixing block (41) and the connecting plate (43), respectively. The top of the connecting plate (43) is fixedly embedded with a positioning sensor (48), which is electrically connected to the hydraulic cylinder (45).

4. The auxiliary support device for bridge erection according to claim 1, characterized in that, The translation drive mechanism includes a mounting housing (31), a translation screw (32) is rotatably provided on the bottom of the inner side of the mounting housing (31), a translation connecting block (33) is threaded through the outer wall of the translation screw (32), the bottom end of the translation connecting block (33) is fixedly connected to the top end of the concave connecting frame (35), a servo motor (34) is fixedly provided on one side of the mounting housing (31) and is drivenly connected to the translation screw (32), and a guide rod (38) is fixedly provided on the top of the inner side of the mounting housing (31) and slides through the translation connecting block (33).

5. The auxiliary support device for bridge erection according to claim 1, characterized in that, The support structure (2) includes a horizontal column (21), the top of which is fixedly connected to the telescopic end of the hydraulic cylinder (45), and a bearing base plate (22) is fixedly provided below the horizontal column (21), the bearing base plate (22) being in the shape of an isosceles trapezoid.

6. The auxiliary support device for bridge erection according to claim 5, characterized in that, Multiple sets of diagonal bracing columns (23) are arranged parallel to each other between the horizontal column (21) and the supporting base plate (22). Each set of diagonal bracing columns (23) consists of two columns arranged in an inverted V-shape. The two ends of the diagonal bracing columns (23) are fixedly connected to the opposite side of the horizontal column (21) and the supporting base plate (22), respectively.

7. The auxiliary support device for bridge erection according to claim 6, characterized in that, An auxiliary support structure is provided between the connecting plate (43) and the horizontal column (21). The auxiliary support structure includes two sets of hinge rods (46). The two sets of hinge rods (46) are fixedly installed on opposite sides of the connecting plate (43) and the horizontal column (21). Each set of hinge rods (46) consists of two rods and is symmetrically arranged. A hollow horizontal column (47) is rotatably installed between the ends of the two hinge rods (46) at opposite positions. An elastic telescopic member is fixedly installed between the two hollow horizontal columns (47).

8. The auxiliary support device for bridge erection according to claim 7, characterized in that, The elastic telescopic component consists of a limiting slide rod (471) and a second spring (49). The outer wall of the limiting slide rod (471) is slidably interlocked with two hollow horizontal columns (47). The second spring (49) is sleeved on the outer wall of the limiting slide rod (471). The two ends of the second spring (49) are fixedly connected to the opposite ends of the two hollow horizontal columns (47).

9. The auxiliary support device for bridge erection according to claim 4, characterized in that, The mounting housing (31) has protrusions on both sides of its bottom end, and the width between the mounting housing (31) and the crossbeam (1) of the bridge erecting equipment matches the thickness of the concave connecting frame (35).

Images