Four-way precision adjusting, positioning and supporting integrated device

Abstract

The application discloses a four-direction precise adjusting, positioning and supporting integrated device, and relates to the technical field of wave-shaped steel web continuous rigid frame installation. The device comprises a transmission mechanism, a guide wheel, a first guide rail, a second guide rail, a main body frame, a special brake device, a buckle and a guide rail clamp device. The transmission mechanism is composed of a cubic nut, a special ball guide column assembly, the special brake device and a high-strength screw rod. The main body frame is connected by a bolt connection auxiliary bolt through a supporting plate, a bottom plate, an extension column and a scissor support. The transmission mechanism, the guide wheel, the first guide rail and the second guide rail are connected through a linkage rod and play a role in the main body frame together with the special brake device and the guide rail clamp device. The device is used for positioning and installing a first section FB0 of a wave-shaped steel web continuous rigid frame, can adjust the component elevation and the axis deviation in four directions with high precision, and can play a temporary supporting role after the adjustment and positioning are completed.

Description

Technical Field

[0001] This invention relates to the field of continuous rigid frame installation technology for corrugated steel webs, and particularly to the precision adjustment technology for the elevation and axial misalignment of the FB0 segment of the corrugated steel web of block 0. Background Technology

[0002] With the application of steel structures in the bridge field, various types of long-span steel structure bridges are constantly emerging in China. Among them, corrugated steel web continuous rigid frames are increasingly favored in the bridge construction industry due to their lightweight, novel structure, and reasonable stress distribution. However, they also have the characteristics of high construction difficulty, complex construction procedures, and high construction precision requirements. Therefore, how to control the manufacturing and installation precision of corrugated steel webs has always been an important research topic.

[0003] The positioning and installation accuracy of the first segment FB0 of the corrugated steel web continuous rigid frame has a crucial impact on the positioning control of subsequent segments. Therefore, in actual hoisting construction, the hoisting of the first segment FB0 is one of the key aspects of controlling the corrugated steel web continuous rigid frame. The hoisting of the corrugated steel web FB0 segment is carried out after the installation of the bottom and side formwork of block 0#, and a truck crane is used for positioning. After the truck crane is roughly in place, one end of the bottom plate of the corrugated steel web FB0 segment is placed on the bottom formwork of block 0#, while the other end facing the mid-span is suspended. This end will remain suspended until the concrete of block 0# is poured. Therefore, after the corrugated steel web FB0 segment is roughly in place by the truck crane, a stable support needs to be provided for the suspended end. At the same time, in order to ensure that the installation axis deviation and elevation of the corrugated steel web meet the expected requirements, precise positioning adjustments are also required for the roughly positioned FB0 segment. To address this, we propose a four-way precision adjustment, positioning, and support integrated device to solve the problems of precision adjustment after the corrugated steel web FB0 segment is roughly in place and temporary support before the concrete pouring of block #0. Summary of the Invention

[0004] The purpose of this invention is to provide a four-way precision adjustment, positioning, and support integrated device. This device is used for the positioning and installation of the first segment FB0 of a continuous rigid frame with corrugated steel web. It can make high-precision adjustments to the elevation and axial deviation of the component in four directions, and can also provide temporary support after the adjustment and positioning are completed.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a four-way precision adjustment, positioning, and support integrated device, the four-way precision adjustment, positioning, and support integrated device comprising:

[0006] The main frame includes a support plate and a base plate. A first guide rail is fixed to the end of the support plate facing the base plate, and a second guide rail is fixed to the end of the base plate facing the support plate. There are two of each of the first and second guide rails. A single first guide groove is opened on the first guide rail, and two symmetrically arranged second guide grooves are opened on the second guide rail. The frame also includes telescopic columns located between the base plate and the support plate. Two telescopic columns are provided at the first and second guide rails on the same side. A scissor brace is hinged between the two telescopic columns on the same side, and a linkage rod is hinged between the two scissor braces on opposite sides. The two ends of the linkage rod pass through the two guide grooves and connect to the telescopic columns.

[0007] The transmission mechanism includes a cubic nut fixedly connected to the outside of one of the linkage rods and a special braking device fixedly connected to the outside of another linkage rod. A high-strength lead screw is inserted inside the cubic nut and the special braking device. A drive motor is connected to the high-strength lead screw. The cubic nut is located between a first guide groove and a second guide groove. The special braking device is located between two opposing second guide grooves.

[0008] Guide wheel, which slides along two guide grooves, and is screwed to the telescopic column and scissor brace;

[0009] A sliding braking mechanism is slidably connected inside a second guide groove near the specially designed braking device.

[0010] Preferably, the telescopic column includes two movable strip plates, each strip plate having a waist-shaped groove, and the two strip plates are tilted and limited by a bolt connection pair passing through the waist-shaped groove.

[0011] Preferably, the transmission mechanism further includes a specially made ball guide post assembly. The main body of the specially made ball guide post assembly is a specially made ball guide post assembly frame. The specially made ball guide post assembly frame is provided with a first guide sleeve and a guide post. The two ends of the guide post are coaxially fixedly connected to the high-strength screw. A plurality of first balls are provided between the guide post and the first guide sleeve.

[0012] Preferably, a first gap area is provided between the guide post and the specially designed ball guide post assembly frame.

[0013] Preferably, the cubic nut is threadedly connected to the high-strength lead screw.

[0014] Preferably, the main body of the special braking device is a special braking device frame. The special braking device frame is provided with a second guide sleeve and a pulley toothed screw outer steel sleeve. A number of second balls are provided between the second guide sleeve and the pulley toothed screw outer steel sleeve. Brake switches are provided on both sides of the pulley toothed screw outer steel sleeve and are threadedly connected to the special braking device frame. After the brake switches are screwed into the special braking device frame, they abut against the surface of the pulley toothed screw outer steel sleeve.

[0015] In the above scheme, the special braking device frame is provided with bolt holes, the brake switch is moved through the bolt holes, the outer steel sleeve of the pulley toothed screw is combined with the second guide sleeve through the second ball, the second guide sleeve is firmly connected to the special braking device frame, the outer steel sleeve of the pulley toothed screw is not in direct contact with the special braking device frame, and the high-strength screw is bolted to the special braking device through the screw hole inside the outer steel sleeve of the pulley toothed screw.

[0016] Preferably, a second gap area is provided between the outer steel sleeve of the pulley toothed screw and the frame of the specially designed braking device.

[0017] Preferably, the support plate is also provided with a buckle track, a buckle slides inside the buckle track, and a limit nut is provided outside the buckle. After the limit nut is tightened, the buckle is tightly attached to the support plate for limiting.

[0018] Preferably, the sliding braking mechanism includes a guide rail clamp that is slidably connected inside the second guide rail.

[0019] In the above scheme, the guide rail clamp is located in the guide rail. When the guide rail clamp is unlocked, it can move along the direction of the guide rail. When locked, it can stably fix any position in the length direction of the guide rail and can also restrict the movement of the guide wheels on the same guide rail.

[0020] The beneficial effects of this invention are:

[0021] 1. This invention utilizes a high-strength lead screw to drive the linkage shaft to move along the second guide rail under external drive. At the same time, a special braking device is set up. The braking switch realizes the transformation between two states: the position remains unchanged when the high-strength lead screw rotates and the movement along the lead screw. This enables the high-precision positioning of the component in four directions and can be used as a temporary stable support after the adjustment point is reached. It is suitable for widespread use.

[0022] 2. The positioning precision in four directions can be adjusted by adjusting the spacing of the high-strength lead screw thread. The smaller the thread spacing of the high-strength lead screw, the more accurate the positioning precision in four directions of this invention. Therefore, this invention has the effect of high-precision adjustment component positioning in four directions and has wide applicability.

[0023] 3. This invention is equipped with a guide rail clamp and a telescopic column. The guide rail clamp provides a more stable limiting function when the specially designed braking device is in a position that does not move with the rotation of the lead screw. After the telescopic column is precisely adjusted, the bolt connection pair on it is tightened, which transforms the invention into a more stable frame structure, thereby better playing the role of temporary support. Therefore, this invention has a more stable effect.

[0024] 4. The four buckles of the present invention can move and be fixed freely on the buckle track, thereby adapting to the actual size of the component and better fixing the component completely on the support plate. Therefore, the present invention has the effect of adjusting the buckle position and completely locking the component according to the size of the component.

[0025] 5. This invention is a frame structure, which is lightweight and has a stable structure. When used in conjunction with a motor, it is suitable for use under various working conditions. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of a four-way precision adjustment, positioning and support integrated device provided by the present invention;

[0027] Figure 2 This is an internal view schematic diagram of a four-way precision adjustment, positioning, and support integrated device provided by the present invention;

[0028] Figure 3 This invention provides an integrated four-way precision adjustment, positioning, and support device. Figure 1 A schematic diagram of the side elevation of the book;

[0029] Figure 4 This is a schematic diagram of a cubic filament structure of a four-way precision adjustment, positioning, and support integrated device provided by the present invention;

[0030] Figure 5 This is a schematic diagram of a specially designed ball bearing guide post assembly for a four-way precision adjustment, positioning, and support integrated device provided by the present invention.

[0031] Figure 6 This is a schematic diagram of a specially designed braking device for a four-way precision adjustment, positioning, and support integrated device provided by the present invention.

[0032] In the diagram: 1. Buckle; 2. Buckle rail; 3. Support plate; 4. High-strength lead screw; 5. Guide rail clamp; 6. Telescopic column; 7. First guide rail; 8. Second guide rail; 9. Base plate; 10. Scissor brace; 11. Cubic lead screw nut; 12. Special ball bearing guide post assembly; 13. Special braking device; 14. Linkage rod; 15. Guide wheel; 16. Special ball bearing guide post assembly frame; 17. First gap area; 18. Second gap area; 19. First guide sleeve; 20. First ball; 21. Guide post; 22. Special braking device frame; 23. Brake switch; 24. Second gap area; 25. Outer steel sleeve of pulley toothed lead screw; 26. Second guide sleeve; 27. Second ball; 28. First guide groove; 29. ​​Second guide groove; 30. Limit nut. Detailed Implementation

[0033] To further understand the invention's content, features, and effects, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0034] In this embodiment, the transmission mechanism of the present invention is composed of a cubic screw nut 11, a specially made ball bearing guide post assembly 12, a specially made braking device 13, and a high-strength screw 4. The guiding mechanism of the present invention is composed of a first guide rail 7, a second guide rail 8, and six guide wheels 15. The main frame of the present invention is formed by bolting together a support plate 3, a base plate 9, a telescopic column 6, and a scissor brace 10 through bolted connections and circular and rectangular washers used in the bolted connections. In addition to the specially made braking device 13 mentioned above, the braking mechanism also includes a sliding braking mechanism, namely a guide rail clamp 5. The guide rail clamp 5 can move and be fixed on the second guide rail 8. The guide rail clamp 5 is an existing, commercially available part. The transmission mechanism and the guiding mechanism are connected by a linkage rod and work together with the braking mechanism in the main frame.

[0035] The transmission mechanism includes a cubic nut 11 bolted to a high-strength lead screw 4. When the high-strength lead screw 4 rotates, the nut 11 can move along the length of the high-strength lead screw 4. Figure 4 As shown; further as Figure 5 As shown, the specially designed ball guide post assembly 12 includes a first guide sleeve 19, a first ball 20, and a guide post 21. The guide post 21 is combined with the first guide sleeve 19 through the first ball 20. Only the first guide sleeve 19 contacts the frame of the specially designed ball guide post assembly 12. There is a first gap area 17 between the guide post 21 and the frame of the specially designed ball guide post assembly 12. The guide post 21 is connected to the high-strength screw 4 and their axes coincide. When the high-strength screw 4 drives the guide post 21 to rotate together, the guide post 21 will continuously rotate freely due to the action of the first guide sleeve 19 and the first ball 20. The specially designed ball guide post assembly 12 is fixed to the base plate 9 by bolts. Therefore, the relative position of the specially designed ball guide post assembly 12 and the high-strength screw 4 remains unchanged. In subsequent movements under different working conditions, the specially designed ball guide post assembly 12 positions the high-strength screw 4.

[0036] The specially designed braking device 13 includes a brake switch 23, a pulley toothed screw outer steel sleeve 25, a second guide sleeve 26, and a second ball bearing 27. The internal structure of the specially designed braking device 13 is as follows: Figure 6As shown, the brake switch consists of three parts: a torsion handle, a screw, and a friction contact surface. The specially designed brake device 13 frame has bolt holes, through which the brake switch 23 moves. The outer steel sleeve 25 of the pulley toothed screw is combined with the second guide sleeve 26 via the second ball 27. The second guide sleeve 26 is securely connected to the frame of the specially designed brake device 13. The outer steel sleeve 25 of the pulley toothed screw does not directly contact the frame 22 of the specially designed brake device. The high-strength screw 4 is bolted to the specially designed brake device 13 through the screw hole inside the outer steel sleeve 25 of the pulley toothed screw. When the brake switch 23 is loosened so that its friction contact surface no longer contacts the outer steel sleeve 25 of the pulley toothed screw, the motor... When the high-strength lead screw 4 is rotated, the outer steel sleeve 25 of the pulley toothed lead screw continuously spins freely due to the action of the second guide sleeve 26 and the second ball 27. Therefore, when the brake switch 23 is loosened, the relative position between the special braking device 13 and the high-strength lead screw 4 remains unchanged. When the brake switch 23 is tightened so that its friction contact surface contacts the outer steel sleeve 25 of the pulley toothed lead screw, the outer steel sleeve 25 of the pulley toothed lead screw is tightly connected to the frame 22 of the special braking device as a whole through the brake switch 23. Therefore, when the brake switch 23 is tightened, the high-strength lead screw 4 is rotated, and the special braking device 13 can move along the length direction of the high-strength lead screw 4.

[0037] Based on the above, for elevation adjustment, before the high-precision adjustment in all four directions is completed, the bolt connection pairs of the telescopic column 6 remain loose to prevent the telescopic column 6 from jamming and preventing the overall height from rising or falling. During the specific height adjustment process, the brake switch 23 in the braking device is loosened and the guide rail clamp 5 is locked against the rectangular shim. At this time, the transmission system is connected to the external power (motor). Under the action of the motor, the high-strength lead screw 4 rotates, and at the same time, the cubic lead screw nut 11 drives the guide system to move along the second guide rail 8 through the linkage rod. The position of the special braking device 13 and its linkage rod 14 remains unchanged under this working condition. The guide mechanism then drives the shear brace 10 to rotate, ultimately achieving a change in elevation of the support plate 3 while keeping the coordinate along the length direction of the high-strength lead screw 4 unchanged. When the shear brace 10 is compressed in the elevation direction, the support plate 3 descends; when the shear brace 10 is compressed perpendicular to the elevation direction, the support plate 3 rises or falls.

[0038] Secondly, for the adjustment in the length direction, the brake switch 23 in the braking device is tightened and the guide rail clamp 5 is unlocked. At this time, the transmission system is connected to the external power (motor). Under the action of the motor, the high-strength screw 4 rotates. At the same time, the cubic screw nut 11 and the special braking device 13 drive the guide mechanism to move along the second guide rail 8 through their respective linkage rods 14. Under this working condition, the cubic screw nut 11 and the special braking device 13 move in the same direction and the distance between them remains unchanged. The guide mechanism then drives the shear brace 10 to move along the direction of the high-strength screw 4 without rotating. Finally, the support plate 3 moves along the length direction of the high-strength screw 4 while the elevation remains unchanged.

[0039] In particular, the realization of the above functions also requires the bottom surface of the base plate 9 to be firmly fixed to the underlying foundation by bolting or welding.

[0040] In use, the bottom surface of the invention base plate 9 is fixed to the underlying foundation by bolting or welding to ensure that the support plate 3 is on the approximate coordinates of the front end base plate 9 of the corrugated steel web FB0 segment. Then, a truck crane is used to lift the corrugated steel web FB0 segment to the approximate position, at which point the front end base plate 9 of the segment falls onto the support plate 3 of the invention.

[0041] Adjust the position of buckle 1 along the track direction of buckle 1, such as... Figure 1 As shown, during adjustment, loosen the limiting nut 30, ensuring that the square shims on the four clips 1 are fully in contact with the edge of the front bottom plate 9 of the FB0 segment, and then tighten the limiting nuts on the four clips 1 to stably fix the FB0 segment on the support plate 3; then connect the power system (motor) to the transmission mechanism of the present invention through the end of the high-strength screw 4, and lock the guide rail clamp 5 against the rectangular shims and loosen the brake switch 23 of the special braking device 13. At this time, start the motor, and the support plate 3 of the present invention is connected to the power mechanism, transmission mechanism, guide mechanism and clips 1. Under the coordinated operation, the elevation of the FB0 segment can be adjusted vertically. Similarly, after connecting to the power system, the guide rail clamp 5 is unlocked and the brake switch of the special braking device 13 is tightened. At this time, the motor is started. Under the coordinated operation of the power system, transmission mechanism, guide mechanism and buckle 1, the elevation of the FB0 segment of the support plate 3 of the present invention is locked and only the left and right adjustment of the axial deviation direction is achieved. After the elevation and axial deviation adjustment are completed, the bolt connection pairs on the four telescopic columns 6 are tightened to lock the structure, thereby transforming the invention into a more stable frame structure, so as to better play the role of temporary support.

[0042] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A four-way precision adjustment, positioning, and support integrated device, characterized in that, This four-way precision adjustment, positioning, and support integrated device includes: The main frame includes a support plate (3) and a base plate (9). A first guide rail (7) is fixed to the end of the support plate (3) facing the base plate (9), and a second guide rail (8) is fixed to the end of the base plate (9) facing the support plate (3). Both the first guide rail (7) and the second guide rail (8) have two sections. The first guide rail (7) has a single first guide groove (28), and the second guide rail (8) has two symmetrically arranged second guide grooves (29). The frame also includes a telescopic column located between the base plate (9) and the support plate (3). 6) Two telescopic columns (6) are provided on the same side of the first guide rail (7) and the second guide rail (8). A scissor brace (10) is hinged between the two telescopic columns (6) on the same side. A linkage rod (14) is hinged between the two scissor braces (10) on opposite sides. The two ends of the linkage rod (14) pass through two guide grooves and are connected to the telescopic column (6). The telescopic column (6) includes two mutually movable strip plates. A waist-shaped groove is opened on the strip plate. The two strip plates are inclined and limited by a bolt connection pair passing through the waist-shaped groove. The transmission mechanism includes a cubic nut (11) fixedly connected to the outside of one of the linkage rods and a special braking device (13) fixedly connected to the outside of another linkage rod (14). A high-strength lead screw (4) is inserted inside the cubic nut (11) and the special braking device (13). The high-strength lead screw (4) is externally connected to a drive motor. The cubic nut (11) is located between a first guide groove (28) and a second guide groove (29). The special braking device (13) is located between two opposing second guide grooves (29). The main body of the special braking device (13) is a special braking device frame (22). The special brake device frame (22) is provided with a second guide sleeve (26) and a pulley toothed screw outer steel sleeve (25). A number of second balls (27) are provided between the second guide sleeve (26) and the pulley toothed screw outer steel sleeve (25). The pulley toothed screw outer steel sleeve (25) is provided with brake switches (23) threadedly connected to the special brake device frame (22) on both sides. After the brake switches (23) are screwed into the special brake device frame (22), they abut against the surface of the pulley toothed screw outer steel sleeve (25). A second gap area (24) is provided between the pulley toothed screw outer steel sleeve (25) and the special brake device (13) frame. The guide wheel (15) slides along two guide grooves and is screwed to the telescopic column (6) and the scissor brace (10). A sliding braking mechanism is slidably connected inside a second guide groove (29) near the special braking device (13).

2. The four-way precision adjustment, positioning, and support integrated device according to claim 1, characterized in that, The transmission mechanism also includes a special ball guide post assembly (12). The main body of the special ball guide post assembly (12) is a special ball guide post assembly frame (16). The special ball guide post assembly frame (16) is provided with a first guide sleeve (19) and a guide post (21). The two ends of the guide post (21) are coaxially fixedly connected to the high-strength screw (4). A number of first balls (20) are provided between the guide post (21) and the first guide sleeve (19).

3. The four-way precision adjustment, positioning, and support integrated device according to claim 2, characterized in that, A first gap region (17) is provided between the guide post (21) and the specially designed ball guide post assembly frame (16).

4. The four-way precision adjustment, positioning, and support integrated device according to claim 1, characterized in that, The cubic nut (11) is threadedly connected to the high-strength screw (4).

5. The four-way precision adjustment, positioning, and support integrated device according to claim 1, characterized in that, The support plate (3) is also provided with a buckle track (2), and a buckle (1) slides inside the buckle track (2). A limiting nut (30) is provided outside the buckle (1). After the limiting nut (30) is tightened, the buckle (1) is close to the support plate (3) for limiting.

6. The four-way precision adjustment, positioning, and support integrated device according to claim 1, characterized in that, The sliding braking mechanism includes a guide rail clamp (5) that is slidably connected inside the second guide rail (8).

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