Spacing-adjustable steel structure connection node device

Abstract

The invention relates to the technical field of steel structural parts, and discloses a spacing-adjustable steel structure connecting node device which comprises a connecting node assembly, the connecting node assembly comprises a first connecting plate, a first connecting hole is formed in the first connecting plate, and a second connecting plate is fixedly connected to the top of the first connecting plate. A multi-stage transmission system composed of a main shaft driving shaft, a driving meshing fluted disc, a stress gear, a closed-loop transmission chain link and a driving worm gear is driven by a double-shaft servo motor, a worm is driven to generate controllable axial displacement in a high-precision thread pair of a mounting seat, and a lead screw transmission mechanism is combined with a connecting bearing to constrain movement of a clamping plate; and a composite guide system is formed by a radial constraint sleeve supported by a load dispersion beam frame, and is matched with a flexible coupling mechanism formed by a main pivoting support, an auxiliary pivoting joint, a connecting block and a flexible compensation connecting rod to drive the improvement of the anti-interference capability of the system.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of steel structure, and particularly relates to a steel structure connecting joint device with adjustable spacing. BACKGROUND

[0002] With the development of building industrialization and intelligent construction technology, in the process of high-rise building steel structure modular assembly, long-span space grid structure construction and fabricated bridge erection, the axial gap between components, angle deviation and thermal expansion and contraction effect need to be dynamically adjusted and temporarily fixed with high precision, so a connecting joint with multi-directional adjustment capacity is needed.

[0003] The steel structure connecting joint disclosed in the patent with the publication number CN119392814A has solved the various defects of the prior connecting joint mainly using a bolt-welding hybrid joint, welding the upper and lower flanges of the beam wing with the column on site, and bolt connecting the beam end web plate with the column through a shear plate. Because of the large welding area, large residual stress is easily generated, which affects the stress performance of the joint and causes the fracture between the cross beam and the longitudinal beam. Further search has found that the steel structure connecting joint disclosed in the patent with the publication number CN118793165A has solved the problem that the design of the wedge block has achieved moderate adjustment of the steel structure connecting joint to a certain extent, but the manufacturing cost is relatively high, and the installation process is relatively complex. However, the connecting joint with the similar structure still has many defects in actual use, for example, the traditional connecting joint lacks fault tolerance in the original welding or riveting mode, and needs to be reworked due to slight alignment deviation. Therefore, a steel structure connecting joint device with adjustable spacing needs to be designed. SUMMARY

[0004] To solve the above technical problems, the present application provides a steel structure connecting joint device with adjustable spacing.

[0005] The present application adopts the following technical scheme: a steel structure connecting joint device with adjustable spacing, comprising a connecting joint assembly, the connecting joint assembly comprising a first connecting plate, the inside of the first connecting plate being provided with a first connecting hole, and the top of the first connecting plate being fixedly connected with a second connecting plate, further comprising:

[0006] a connecting assembly, the connecting assembly comprising a transition support frame screw-connected to the outer surface of the first connecting plate, and the outer surface of the transition support frame being provided with a mounting seat;

[0007] a spacing adjustment assembly, the spacing adjustment assembly comprising a worm screw-connected to the inner wall of the mounting seat, and the worm being provided with a clamping plate on one side through a connecting bearing;

[0008] The force receiving assembly comprises a driving worm wheel rotatably connected to the outer surface of the transition support frame through a mounting frame, and the top of the driving worm wheel is provided with a force receiving gear rotatably connected to the inner wall of the mounting frame through a closed-loop transmission chain link;

[0009] The driving assembly comprises a double-shaft servo motor fixedly connected to the top of the second connecting plate through a motor mounting base, and the output end of the double-shaft servo motor is fixedly connected with a driving meshed gear disc through a main shaft driving shaft.

[0010] As a further improvement of the above scheme, the outer surface of the first connecting plate is fixedly connected with a base fixing bottom plate through external fixing bolts, the inside of the base fixing bottom plate is provided with a third connecting hole, the third connecting hole is matched with the first connecting hole, and the inside of the third connecting hole and the first connecting hole is threadedly connected with external fixing bolts.

[0011] Through the above technical scheme, the external fixing bolts penetrate through the third connecting hole and the first connecting hole to form double positioning reference, and this laminated fastening mode makes the connecting node assembly and the external steel structure form a rigid whole, effectively preventing loosening caused by vibration.

[0012] As a further improvement of the above scheme, the inside of the transition support frame is provided with a second connecting hole, the central position of the outer surface of the transition support frame is fixedly connected with a mounting seat, and the inner wall of the mounting seat is threadedly connected with a worm.

[0013] Through the above technical scheme, the worm is directly installed on the mounting seat in the center of the transition support frame, the length of the transmission chain is shortened, the energy loss is reduced, the modular design facilitates maintenance and replacement, and the spatial layout of the force receiving assembly is reasonable.

[0014] As a further improvement of the above scheme, the worm is rotatably connected to the inside of a connecting bearing, the outer surface of the connecting bearing is fixedly connected with a clamping plate, the inside of the clamping plate is provided with a fourth connecting hole, and the fourth connecting hole is matched with the second connecting hole.

[0015] Through the above technical scheme, the worm drives the clamping plate through the connecting bearing to convert rotary motion into precise linear displacement, and the matching design of the fourth connecting hole and the second connecting hole ensures synchronous action of multiple clamping devices, thereby improving batch assembly efficiency.

[0016] As a further improvement of the above scheme, the outer surface of the transition support frame is fixedly connected with a mounting frame, the bottom of the inner wall of the mounting frame is rotatably connected with a driving worm wheel, the driving worm wheel is meshed with the worm, the top of the inner wall of the mounting frame is rotatably connected with a force receiving gear, the outer surface of the force receiving gear is sleeved with a closed-loop transmission chain link, and the side away from the force receiving gear of the closed-loop transmission chain link is sleeved to the outer surface of the driving worm wheel.

[0017] Through the technical scheme, the driving worm wheel and the force receiving gear form a closed loop through the closed loop transmission chain, and bidirectional power transmission is realized.

[0018] As a further improvement of the above scheme, the top of the second connecting plate is fixedly connected with a motor mounting base, the top of the motor mounting base is fixedly connected with a double-shaft servo motor, the output end of the double-shaft servo motor is fixedly connected with a main shaft driving shaft, the outer surface of the main shaft driving shaft is fixedly connected with a driving meshing gear disc, and the driving meshing gear disc is in meshing engagement with the force receiving gear.

[0019] Through the technical scheme, the double-shaft servo motor directly drives the main shaft driving shaft, eliminates the risk of belt transmission slip, and ensures that the backlash of the straight-tooth meshing of the driving meshing gear disc and the force receiving gear is zero, which is suitable for high-precision positioning scenarios.

[0020] As a further improvement of the above scheme, the two sides of the top of the second connecting plate are fixedly connected with load dispersion beam frames, the inner wall of the load dispersion beam frame is fixedly connected with a main pivot support, the top of the inner wall of the load dispersion beam frame is fixedly connected with a connecting block, and the central position of the connecting block is fixedly connected with a radial constraint sleeve.

[0021] Through the technical scheme, the main pivot support, the connecting block and the radial constraint sleeve built in the load dispersion beam frame constitute a triangular stable frame, and the inertia force during equipment operation is dispersed. The radial constraint of the radial constraint sleeve to the main shaft driving shaft improves the rigidity of the system.

[0022] As a further improvement of the above scheme, the inside of the radial constraint sleeve is rotatably connected with the main shaft driving shaft, the outer surface of the connecting block is fixedly connected with a secondary pivot joint, the inside of the secondary pivot joint is rotatably connected with a flexible compensation connecting rod, and the side away from the secondary pivot joint of the flexible compensation connecting rod is rotatably connected to the inside of the main pivot support.

[0023] Through the technical scheme, the two ends of the flexible compensation connecting rod are respectively hinged to the main pivot support and the secondary pivot joint, allowing a small angle deviation between components without stress transmission. This design effectively compensates for the center offset problem caused by manufacturing errors and thermal deformation.

[0024] Compared with the prior art, the present application has the following advantages:

[0025] The application drives the main shaft driving shaft, the driving gear, the force gear, the closed loop transmission link, the driving worm gear by the multi-stage transmission system of the double-shaft servo motor, drives the worm to produce controllable axial displacement in the high-precision screw pair of the mounting seat, the screw transmission mechanism is combined with the connecting bearing to constrain the movement of the clamping plate, realizes the accurate conversion of the rotary motion to the linear displacement, so that the micron-level position adjustment during the connection of the steel structure is realized, the seamless butt joint between different specifications of components is ensured, and the assembly efficiency and the connection precision are significantly improved.

[0026] The application forms a composite guide system by the radial constraint sleeve supported by the load dispersion beam frame, forms a flexible coupling mechanism by the main pivoting support, the secondary pivoting node, the connecting block and the flexible compensation connecting rod, drives the system to improve the anti-interference ability and generate the dynamic error compensation mechanism, the third connecting hole of the base fixed bottom plate and the first connecting hole of the first connecting plate are strictly centered, the straightness of the power transmission path is ensured, so that the stable operation of the equipment under complex working conditions is realized, the vibration and impact load are effectively absorbed, the service life of the device is prolonged, and the reliability of long-term work is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is the overall structure schematic diagram of the application;

[0028] Figure 2 It is the internal schematic diagram of the overall structure of the application;

[0029] Figure 3 It is the overall structure schematic diagram of the application; Figure 2 It is the enlarged schematic diagram of the structure at A in the application;

[0030] Figure 4 It is the overall structure schematic diagram of the application; Figure 2 It is the enlarged schematic diagram of the structure at B in the application;

[0031] Figure 5 It is the structure schematic diagram of the distance adjusting assembly of the application;

[0032] Figure 6 It is the overall structure schematic diagram of the application; Figure 5 It is the enlarged schematic diagram of the structure at C in the application;

[0033] Figure 7 It is the structure schematic diagram of the driving assembly of the application.

[0034] MAIN SYMBOL EXPLANATION:

[0035] 1, connecting node assembly; 101, first connecting plate; 102, first connecting hole; 103, second connecting plate; 2, connecting assembly; 201, transition support frame; 202, second connecting hole; 203, base fixed bottom plate; 204, third connecting hole; 205, mounting seat; 3, spacing adjustment assembly; 301, worm; 302, connecting bearing; 303, clamping plate; 304, fourth connecting hole; 4, force receiving assembly; 401, mounting frame; 402, driving worm gear; 403, force receiving gear; 404, closed-loop transmission link; 5, driving assembly; 501, motor mounting base; 502, double-shaft servo motor; 503, main shaft drive shaft; 504, driving meshing tooth disc; 505, load dispersion beam frame; 506, main pivot support; 507, connecting block; 508, radial constraint sleeve; 509, auxiliary pivot node; 510, flexible compensation connecting rod. DETAILED DESCRIPTION

[0036] In the following, the application will be further described in conjunction with the drawings and specific embodiments, it should be noted that the following described embodiments or technical features can be combined to form new embodiments without conflict.

[0037] Embodiments:

[0038] Please combine Figures 1-7 The adjustable spacing steel structure connecting node device of the embodiment comprises a connecting node assembly 1, the connecting node assembly 1 comprises a first connecting plate 101, the first connecting plate 101 is internally provided with a first connecting hole 102, and the top of the first connecting plate 101 is fixedly connected with a second connecting plate 103, and further comprises:

[0039] A connecting assembly 2, the connecting assembly 2 comprises a transition support frame 201 which is screw-connected to the outer surface of the first connecting plate 101, and the outer surface of the transition support frame 201 is provided with a mounting seat 205;

[0040] A spacing adjustment assembly 3, the spacing adjustment assembly 3 comprises a worm 301 which is screw-connected to the inner wall of the mounting seat 205, and the worm 301 is provided with a clamping plate 303 on one side through a connecting bearing 302;

[0041] A force receiving assembly 4, the force receiving assembly 4 comprises a driving worm gear 402 which is rotationally connected to the outer surface of the transition support frame 201 through a mounting frame 401, and the top of the driving worm gear 402 is provided with a force receiving gear 403 which is rotationally connected to the inner wall of the mounting frame 401 through a closed-loop transmission link 404;

[0042] The driving assembly 5 comprises a double-shaft servo motor 502 fixedly connected to the top of the second connecting plate 103 through a motor mounting base 501, and the output end of the double-shaft servo motor 502 is fixedly connected with a driving meshed disc 504 through a main shaft driving shaft 503.

[0043] The outer surface of the first connecting plate 101 is fixedly connected with a base fixing bottom plate 203 through external fixing bolts, the inside of the base fixing bottom plate 203 is provided with a third connecting hole 204, the third connecting hole 204 is matched with the first connecting hole 102, and the inside of the third connecting hole 204 and the first connecting hole 102 is threadedly connected with external fixing bolts.

[0044] After the preliminary positioning is completed, the operator inserts external fixing bolts into the second connecting hole 202 and the fourth connecting hole 304, and realizes double reinforcement by the coaxiality of the two hole systems.

[0045] The inside of the transition support frame 201 is provided with a second connecting hole 202, the central position of the outer surface of the transition support frame 201 is fixedly connected with a mounting seat 205, and the inner wall of the mounting seat 205 is threadedly connected with a worm 301.

[0046] The worm 301 is rotationally connected to the inside of a connecting bearing 302, the outer surface of the connecting bearing 302 is fixedly connected with a clamping plate 303, the inside of the clamping plate 303 is provided with a fourth connecting hole 304, and the fourth connecting hole 304 is matched with the second connecting hole 202.

[0047] The outer surface of the transition support frame 201 is fixedly connected with a mounting rack 401, the bottom of the inner wall of the mounting rack 401 is rotationally connected with a driving worm gear 402, the driving worm gear 402 is meshed with the worm 301, the top of the inner wall of the mounting rack 401 is rotationally connected with a force receiving gear 403, the outer surface of the force receiving gear 403 is sleeved with a closed-loop transmission chain link 404, and the side, away from the force receiving gear 403, of the closed-loop transmission chain link 404 is sleeved to the outer surface of the driving worm gear 402.

[0048] With the continuous rotation of the driving worm gear 402, the worm 301 which is precisely meshed with the driving worm gear 402 produces axial displacement due to the helix angle characteristics, the outer wall of the worm 301 is tightly matched with the high-precision threads processed in the mounting seat 205, forming a reliable screw transmission mechanism, at the same time, the other end of the worm 301 is constrained by the connecting bearing 302 to make the clamping plate 303 move linearly along the predetermined track, this design of converting rotary motion into linear displacement enables the clamping plate to accurately reach the target position and firmly clamp the steel structure to be connected.

[0049] The top of the second connecting plate 103 is fixedly connected with a motor mounting base 501, the top of the motor mounting base 501 is fixedly connected with a double-shaft servo motor 502, the output end of the double-shaft servo motor 502 is fixedly connected with a main shaft driving shaft 503, the outer surface of the main shaft driving shaft 503 is fixedly connected with a driving meshing gear plate 504, and the driving meshing gear plate 504 is in meshing connection with the force receiving gear 403.

[0050] The two sides of the top of the second connecting plate 103 are fixedly connected with load dispersion beam frames 505, the inner walls of the load dispersion beam frames 505 are fixedly connected with main pivot supports 506, the top of the inner wall of the load dispersion beam frame 505 is fixedly connected with a connecting block 507, and the central position of the connecting block 507 is fixedly connected with a radial constraint sleeve 508.

[0051] The inside of the radial constraint sleeve 508 is rotationally connected with the main shaft driving shaft 503, the outer surface of the connecting block 507 is fixedly connected with a secondary pivot joint 509, the inside of the secondary pivot joint 509 is rotationally connected with a flexible compensation connecting rod 510, and the side, away from the secondary pivot joint 509, of the flexible compensation connecting rod 510 is rotationally connected to the inside of the main pivot support 506.

[0052] After the preliminary positioning is completed, an external fixing bolt is inserted into the second connecting hole 202 and the fourth connecting hole 304, the coaxiality of the two hole systems is utilized to realize double reinforcement, the load dispersion beam frame 505 supports the radial constraint sleeve 508 to form a composite guide system, the main pivot support 506, the secondary pivot joint 509 and the connecting block 507 inside the composite guide system constitute a flexible coupling mechanism through the flexible compensation connecting rod 510, and dynamic compensation under a slight angle deviation is allowed; the third connecting hole 204 of the base fixing bottom plate 203 is strictly centered with the first connecting hole 102 of the first connecting plate 101, and efficient power transmission along the main shaft is ensured.

[0053] The implementation principle of the adjustable spacing steel structure connecting joint device in the embodiment of the application is as follows: when the double-shaft servo motor 502 is started, the main shaft driving shaft 503 at the output end of the double-shaft servo motor 502 starts to rotate at high speed, and drives the coaxially fixed driving meshing gear plate 504 to rotate synchronously, since the driving meshing gear plate 504 is in meshing connection with the force receiving gear 403, under the tension of the closed loop transmission chain 404, the force receiving gear transmits the torque to the driving worm gear 402 in the mounting frame 401, with the continuous rotation of the driving worm gear 402, the worm 301 in precise meshing connection with the driving worm gear 402 generates axial displacement due to the helix angle characteristics, the outer wall of the worm 301 is in close cooperation with the high-precision threads processed in the mounting seat 205, and a reliable lead screw transmission mechanism is formed, at the same time, the other end of the worm 301 is constrained by the connecting bearing 302, so that the clamping plate 303 moves along the predetermined track in a straight line, the design of converting the rotary motion into linear displacement enables the clamping plate to accurately reach the target position and firmly clamp the steel structure to be connected.

[0054] The above embodiments are only the preferred embodiments of the present application, and cannot be used to limit the scope of protection of the present application. Any non-essential changes and substitutions made by those skilled in the art based on the present application shall fall within the scope of protection of the present application.

Claims

1. An adjustable-spacing steel structure connection node device, comprising a connection node assembly (1), the connection node assembly (1) comprising a first connection plate (101), the first connection plate (101) having a first connection hole (102) inside, and a second connection plate (103) fixedly connected to the top of the first connection plate (101), characterized in that, Also includes: The connecting component (2) includes a transition support frame (201) threaded to the outer surface of the first connecting plate (101), and the outer surface of the transition support frame (201) is provided with a mounting base (205). The spacing adjustment assembly (3) includes a worm (301) threaded to the inner wall of the mounting base (205), and a clamping plate (303) is provided on one side of the worm (301) via a connecting bearing (302); The force-bearing component (4) includes a drive worm gear (402) rotatably connected to the outer surface of the transition support frame (201) via a mounting bracket (401), and a force-bearing gear (403) rotatably connected to the inner wall of the mounting bracket (401) via a closed-loop transmission chain link (404) is provided on the top of the drive worm gear (402). The drive assembly (5) includes a dual-axis servo motor (502) fixedly connected to the top of the second connecting plate (103) via a motor mounting base (501). The output end of the dual-axis servo motor (502) is fixedly connected to an active meshing gear disk (504) via a main spindle drive shaft (503).

2. The adjustable-spacing steel structure connection node device as described in claim 1, characterized in that: The outer surface of the first connecting plate (101) is fixedly connected to a base fixing plate (203) by an external fixing bolt. The base fixing plate (203) has a third connecting hole (204) inside. The third connecting hole (204) matches the first connecting hole (102). The third connecting hole (204) and the first connecting hole (102) are threadedly connected by an external fixing bolt.

3. The adjustable-spacing steel structure connection node device as described in claim 1, characterized in that: The transition support frame (201) has a second connecting hole (202) inside. A mounting base (205) is fixedly connected to the center of the outer surface of the transition support frame (201). A worm gear (301) is threadedly connected to the inner wall of the mounting base (205).

4. The adjustable-spacing steel structure connection node device as described in claim 3, characterized in that: The worm gear (301) is rotatably connected to the inside of the connecting bearing (302). A clamping plate (303) is fixedly connected to the outer surface of the connecting bearing (302). A fourth connecting hole (304) is opened inside the clamping plate (303), and the fourth connecting hole (304) matches the second connecting hole (202).

5. The adjustable-spacing steel structure connection node device as described in claim 1, characterized in that: The outer surface of the transition support frame (201) is fixedly connected to a mounting bracket (401). The bottom of the inner wall of the mounting bracket (401) is rotatably connected to a drive worm gear (402). The drive worm gear (402) meshes with the worm (301). The top of the inner wall of the mounting bracket (401) is rotatably connected to a force-bearing gear (403). A closed-loop transmission chain link (404) is sleeved on the outer surface of the force-bearing gear (403). The side of the closed-loop transmission chain link (404) away from the force-bearing gear (403) is sleeved on the outer surface of the drive worm gear (402).

6. The adjustable-spacing steel structure connection node device as described in claim 1, characterized in that: A motor mounting base (501) is fixedly connected to the top of the second connecting plate (103). A dual-axis servo motor (502) is fixedly connected to the top of the motor mounting base (501). A main spindle drive shaft (503) is fixedly connected to the output end of the dual-axis servo motor (502). An active meshing gear disk (504) is fixedly connected to the outer surface of the main spindle drive shaft (503). The active meshing gear disk (504) meshes with the force-bearing gear (403).

7. The adjustable-spacing steel structure connection node device as described in claim 6, characterized in that: The top two sides of the second connecting plate (103) are fixedly connected to load-distributing beams (505), the inner wall of the load-distributing beams (505) is fixedly connected to a main pivot support (506), the top of the inner wall of the load-distributing beams (505) is fixedly connected to a connecting block (507), and a radial constraint sleeve (508) is fixedly connected to the center of the connecting block (507).

8. The adjustable-spacing steel structure connection node device as described in claim 7, characterized in that: The radial constraint sleeve (508) is rotatably connected to the main shaft drive shaft (503), and the outer surface of the connecting block (507) is fixedly connected to the secondary pivot node (509). The secondary pivot node (509) is rotatably connected to the interior of the flexible compensation link (510), and the side of the flexible compensation link (510) away from the secondary pivot node (509) is rotatably connected to the interior of the main pivot support (506).

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