A steel truss pushing device

Abstract

The utility model relates to the technical field of bridge construction, and discloses a steel truss pushing device, including a support column, a sliding frame fixedly connected to the lower end of the support column, a slide rail slidably connected to the lower part of the sliding frame, a plurality of slide rails are provided and are spliced ​​and installed mutually, a positioning mechanism is interspersed and movably connected to the middle of the front end and the middle of the rear end of the sliding frame, a pushing mechanism is fixedly connected to the middle of the right end of the support column, a controller is fixedly connected to the middle of the front end of the support column, and a reinforcing plate is fixedly connected between the support column and the front left part, the front right part, the rear left part, and the rear right part of the sliding frame. The steel truss pushing device described in the utility model can firmly splice the plurality of slide rails and make the surface smooth by providing a plurality of slide rails, thereby ensuring the pushing effect, and can realize strong pushing of the steel truss by providing a positioning mechanism and a pushing mechanism, thereby enhancing the pushing effect, and is suitable for wide use.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a steel truss jacking device. Background Art

[0002] Most steel truss bridges are constructed by hoisting and splicing. The construction method is mature and the construction period is short. It occupies a dominant position in the construction of municipal bridges in my country. However, steel structure bridges with larger spans are limited by the scale of hoisting equipment. Traditional hoisting schemes are difficult to meet their design and construction requirements. They must be constructed by jacking construction method, which will use jacking devices.

[0003] In the Chinese patent with publication number CN220433416U, a steel truss pushing device is mentioned, in which the slide rail is formed by splicing a plurality of track monomers, which is convenient for partial disassembly and can quickly support and fix the truss after the position adjustment is completed, and the operation efficiency is high; however, the slide rail on the pushing device is formed by splicing a plurality of track monomers, but the splicing between the plurality of track monomers is not firm enough, resulting in errors in the spliced ​​slide rails, thereby affecting the pushing effect of the pushing device and reducing the practicality. Therefore, we introduce a steel truss pushing device. Utility Model Content

[0004] The main purpose of the utility model is to provide a steel truss pushing device, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A steel truss pushing device comprises a support column, the lower end of the support column is fixedly connected to a sliding frame, the lower part of the sliding frame is slidably connected to a slide rail, the slide rail is provided with a plurality of rails and is spliced ​​and installed with each other, the middle part of the front end and the middle part of the rear end of the sliding frame are both interspersed with a positioning mechanism for active connection, the middle part of the right end of the support column is fixedly connected to a pushing mechanism, the middle part of the front end of the support column is fixedly connected to a controller, and a reinforcing plate is fixedly connected between the support column and the front left part, the front right part, the rear left part and the rear right part of the sliding frame;

[0007] The pushing mechanism includes a pushing hydraulic cylinder, and three pushing hydraulic cylinders are provided. A mounting plate is fixedly connected between the left ends and output ends of the three pushing hydraulic cylinders. Mounting holes are provided at the four corners of the opposite surfaces of the two mounting plates. The right end of the mounting plate on the right side is fixedly connected to a pushing seat by bolts. A sliding groove is provided in the middle of the lower end of the pushing seat. The left end of the mounting plate on the left side is fixedly connected to the right end of the support column by bolts.

[0008] Preferably, positioning grooves are provided in the middle of the front rail wall and the middle of the rear rail wall of several of the slide rails, fixing grooves are provided at the four corners of the left ends of several of the slide rails, connecting strips are fixedly connected to the middle of the left ends of several of the slide rails, the first magnetic plate is inserted and fixedly connected to the middle of the left ends of several of the connecting strips, and positioning holes are provided in the middle of the lower ends of several of the connecting strips.

[0009] Preferably, the four corners of the right ends of several of the slide rails are fixedly connected with fixed blocks, the middle part of the right ends of several of the slide rails are provided with connecting grooves, the middle part of the groove walls of several of the connecting grooves are interspersed and fixedly connected with second magnetic plates, and the middle part of the lower groove walls of several of the connecting grooves are fixedly connected with positioning columns.

[0010] Preferably, the fixing block and the fixing groove are both configured as convex structures, the connecting groove and the connecting strip are both configured as dovetail structures, and the magnetic poles of the second magnetic plate are opposite to those of the first magnetic plate.

[0011] Preferably, the positioning mechanism comprises an electric push rod, the output end of which passes through the output end of the sliding frame and is fixedly connected to a positioning clamping plate, the upper and lower ends of the positioning clamping plate are provided with a plurality of slots, and balls are movably clamped inside the plurality of slots.

[0012] Preferably, the electric push rod and the three push hydraulic cylinders are all electrically connected to the controller, the positioning clamp is configured as a convex structure, and the outer surface of the positioning clamp and the outer surfaces of the plurality of balls are in contact with the rail wall of the slide rail.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. In the utility model, multiple slide rails are arranged, and the connecting strips are inserted into the adjacent connecting grooves for clamping and fixing, so that the positioning column is inserted into the positioning hole for positioning, and the fixing block is also inserted into the fixing groove for clamping and fixing, and then the suction force generated by the first magnetic plate and the second magnetic plate can firmly splice the two adjacent slide rails, and the surface of the spliced ​​slide rails is smooth without error, which can ensure the pushing effect;

[0015] 2. In the utility model, by setting a positioning mechanism and a pushing mechanism, the positioning clamp is inserted into the positioning groove by extending the electric push rod, so that the sliding frame and the slide rail can be clamped and fixed firmly, and then the three pushing hydraulic cylinders are synchronously extended and retracted to achieve a strong pushing of the steel truss. The three pushing hydraulic cylinders form a triangle with strong stability, which can enhance the pushing effect of the truss. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall structure of a steel truss jacking device of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall structure of a slide rail of a steel truss pushing device of the utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of a positioning mechanism of a steel truss pushing device of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the overall structure of a jacking mechanism of a steel truss jacking device.

[0020] In the figure: 1. support column; 2. sliding frame; 3. slide rail; 4. positioning mechanism; 5. push mechanism; 6. controller; 7. reinforcement plate; 8. positioning groove; 9. fixing groove; 10. connecting strip; 11. first magnetic plate; 12. positioning hole; 13. fixing block; 14. connecting groove; 15. second magnetic plate; 16. positioning column; 41. electric push rod; 42. positioning clamping plate; 43. slot; 44. ball; 51. push hydraulic cylinder; 52. mounting plate; 53. mounting hole; 54. push seat; 55. slide groove. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0023] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] See also Figure 1-4 , the utility model provides a technical solution:

[0025] A steel truss pushing device comprises a support column 1, a sliding frame 2 is fixedly connected to the lower end of the support column 1, a slide rail 3 is slidably connected to the lower part of the sliding frame 2, a plurality of slide rails 3 are provided and are spliced ​​and installed with each other, a positioning mechanism 4 is inserted and movably connected to the middle of the front end and the middle of the rear end of the sliding frame 2, a pushing mechanism 5 is fixedly connected to the middle of the right end of the support column 1, a controller 6 is fixedly connected to the middle of the front end of the support column 1, and a reinforcing plate 7 is fixedly connected between the support column 1 and the front left part, the front right part, the rear left part and the rear right part of the sliding frame 2;

[0026] The pushing mechanism 5 includes a pushing hydraulic cylinder 51, and there are three pushing hydraulic cylinders 51. A mounting plate 52 is fixedly connected between the left ends and the output ends of the three pushing hydraulic cylinders 51. Mounting holes 53 are provided at the four corners of the opposite surfaces of the two mounting plates 52. The right end of the right mounting plate 52 is fixedly connected to a pushing seat 54 by bolts. A slide groove 55 is provided in the middle of the lower end of the pushing seat 54. The left end of the left mounting plate 52 is fixedly connected to the right end of the support column 1 by bolts.

[0027] In this embodiment, a plurality of rails 3 are provided with positioning grooves 8 in the middle of the front rail wall and the middle of the rear rail wall, a plurality of rails 3 are provided with fixing grooves 9 at the four corners of the left ends, a plurality of rails 3 are provided with connecting strips 10 in the middle of the left ends, a plurality of connecting strips 10 are provided with first magnetic plates 11 in the middle of the left ends, and a plurality of connecting strips 10 are provided with positioning holes 12 in the middle of the lower ends; a plurality of rails 3 are provided with fixing blocks 13 in the four corners of the right ends, and a plurality of rails 3 are provided with connecting grooves 14 in the middle of the right ends. The middle part of the groove wall of the dry strip connecting groove 14 is interspersed and fixedly connected with a second magnetic plate 15, and the middle part of the lower groove wall of several connecting grooves 14 is fixedly connected with a positioning column 16; the fixing block 13 and the fixing groove 9 are both arranged as a convex structure, and the fixing block 13 and the fixing groove 9 are firmly connected, and the connecting groove 14 and the connecting strip 10 are both arranged as a dovetail structure, so that the connecting groove 14 and the connecting strip 10 are firmly connected, and the magnetic pole of the second magnetic plate 15 is opposite to the magnetic pole of the first magnetic plate 11, so that the second magnetic plate 15 and the first magnetic plate 11 are adsorbed and fixed by suction.

[0028] In this embodiment, the positioning mechanism 4 includes an electric push rod 41, the output end of the electric push rod 41 passes through the output end of the sliding frame 2 and is fixedly connected to a positioning clamping plate 42, the upper and lower ends of the positioning clamping plate 42 are provided with a plurality of slots 43, and the interiors of the plurality of slots 43 are movably clamped with balls 44; the electric push rod 41 and the three push hydraulic cylinders 51 are all electrically connected to the controller 6, and the positioning clamping plate 42 is configured as a convex structure, which is convenient for inserting the positioning clamping plate 42 into the positioning slot 8 for clamping and positioning, and the outer surface of the positioning clamping plate 42 and the outer surfaces of the plurality of balls 44 are in contact with the rail wall of the slide rail 3, so that the slide rail 3 limits the positioning clamping plate 42 and allows the positioning clamping plate 42 to move smoothly.

[0029] It should be noted that the utility model is a steel truss pushing device. During use, the connecting strip 10 is first inserted into the adjacent connecting groove 14 for clamping and fixing. At this time, the positioning column 16 is also inserted into the positioning hole 12 for positioning, so that the two adjacent slide rails 3 can be fixedly connected together. At the same time, the four fixing blocks 13 are also inserted into the corresponding four fixing grooves 9 for clamping and fixing. The connection between the two slide rails 3 can be fixed again, and then the magnetic force generated between the first magnetic plate 11 and the second magnetic plate 15 can be adsorbed, so that the two adjacent slide rails 3 can be firmly spliced ​​with each other, and the surface of the spliced ​​slide rails 3 is smooth without any error, which can ensure the pushing effect of the pushing seat 54 on the steel truss, and improve the pushing effect of the steel truss. The practicability is improved. When the steel truss needs to be pushed, the steel truss is first placed on the pushing seat 54, and then the two electric push rods 41 are controlled to start by the controller 6. The two electric push rods 41 are extended at the same time to insert the positioning clamping plate 42 into the positioning groove 8, so that the sliding frame 2 and the slide rail 3 can be clamped and fixed firmly to achieve the firm positioning of the support column 1. Then the three pushing hydraulic cylinders 51 are controlled to extend synchronously by the controller 6 to push the pushing seat 54 and the steel truss thereon, so that the pushing seat 54 slides on the multiple slide rails 3 through the slide groove 55, which can achieve a strong pushing of the steel truss. The three pushing hydraulic cylinders 51 form a triangle, which can have strong stability and can enhance the pushing effect of the steel truss.

[0030] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A steel truss pushing device, comprising a support column (1), characterized in that: The lower end of the support column (1) is fixedly connected to a sliding frame (2), the lower part of the sliding frame (2) is slidably connected to a sliding rail (3), the sliding rail (3) is provided with a plurality of rails and is spliced ​​and installed with each other, the middle part of the front end and the middle part of the rear end of the sliding frame (2) are both interlaced and movably connected with a positioning mechanism (4), the middle part of the right end of the support column (1) is fixedly connected to a pushing mechanism (5), the middle part of the front end of the support column (1) is fixedly connected to a controller (6), and a reinforcing plate (7) is fixedly connected between the left front end, the right front end, the left rear end and the right rear end of the support column (1) and the sliding frame (2); The pushing mechanism (5) comprises a pushing hydraulic cylinder (51), three of which are provided, a mounting plate (52) being fixedly connected between the left ends and the output ends of the three pushing hydraulic cylinders (51), mounting holes (53) being provided at four corners of the opposite surfaces of the two mounting plates (52), the right end of the right mounting plate (52) being fixedly connected to a pushing seat (54) by bolts, a slide groove (55) being provided in the middle of the lower end of the pushing seat (54), and the left end of the left mounting plate (52) being fixedly connected to the right end of the support column (1) by bolts.

2. A steel truss pushing device according to claim 1, characterized in that: A plurality of the slide rails (3) are provided with positioning grooves (8) in the middle of the front rail wall and the middle of the rear rail wall, a plurality of the slide rails (3) are provided with fixing grooves (9) at the four corners of the left ends, a plurality of the slide rails (3) are provided with connecting strips (10) in fixed connection at the middle of the left ends, a plurality of the connecting strips (10) are provided with first magnetic plates (11) in fixed connection at the middle of the left ends, and a plurality of the connecting strips (10) are provided with positioning holes (12) in the middle of the lower ends.

3. A steel truss pushing device according to claim 2, characterized in that: The four corners of the right ends of several of the slide rails (3) are fixedly connected with fixed blocks (13), the middle parts of the right ends of several of the slide rails (3) are provided with connecting grooves (14), the middle parts of the upper groove walls of several of the connecting grooves (14) are interspersed with second magnetic plates (15) and fixedly connected, and the middle parts of the lower groove walls of several of the connecting grooves (14) are fixedly connected with positioning columns (16).

4. A steel truss pushing device according to claim 3, characterized in that: The fixing block (13) and the fixing groove (9) are both configured as convex structures, the connecting groove (14) and the connecting strip (10) are both configured as dovetail structures, and the magnetic poles of the second magnetic plate (15) are opposite to those of the first magnetic plate (11).

5. The steel truss pushing device according to claim 4, characterized in that: The positioning mechanism (4) comprises an electric push rod (41), the output end of the electric push rod (41) penetrates the output end of the sliding frame (2) and is fixedly connected to a positioning clamping plate (42), the upper end and the lower end of the positioning clamping plate (42) are both provided with a plurality of slots (43), and a plurality of the slots (43) are movably clamped with balls (44) inside.

6. The steel truss pushing device according to claim 5, characterized in that: The electric push rod (41) and the three push hydraulic cylinders (51) are all electrically connected to the controller (6); the positioning clamping plate (42) is configured as a convex structure, and the outer surface of the positioning clamping plate (42) and the outer surfaces of the plurality of balls (44) are in contact with the rail wall of the slide rail (3).

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