Net rack node structure

Abstract

The utility model relates to the technical field of cement clinker warehouse net racks, in particular to a net rack node structure which comprises a supporting beam, a supporting base fixed to the supporting beam, a ball rack assembly fixed to the supporting base, a roof truss assembly fixedly connected with the ball rack assembly and a cover plate assembly fixed to the roof truss assembly. The ball rack assembly comprises a lower bolt ball fixed to the supporting base, an upper bolt ball fixed to the roof truss assembly and a rod piece connected between the lower bolt ball and the upper bolt ball in a threaded mode, a connecting sleeve is fixed to the rod piece, a threaded hole is formed in the middle of the connecting sleeve, and the two ends of the rod piece can be connected into the threaded hole in a threaded mode. The connecting sleeve is provided with a concave face attached to the spherical face of the upper bolt ball and the spherical face of the lower bolt ball. Machining and mounting errors possibly existing in the grid structure can be effectively coped with, local stress concentration of the mounting assembly is avoided, and the overall stability of the cement clinker silo is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cement clinker warehouse grids, in particular to a grid node structure. Background Art

[0002] Cement clinker silo is a warehouse for storing cement clinker. The bottom of the clinker silo is a concrete silo structure, and the silo is used to store cement clinker. The top of the clinker silo is a steel-structured roof house, which is located above the silo. A conveying corridor is provided on the roof house, which is connected to the kiln head for preparing cement clinker. The cement clinker is transported from the kiln head to the roof house through the zipper machine in the conveying corridor, and then falls from the discharge port of the roof house into the silo below for storage.

[0003] In order to facilitate installation and construction, the roof of cement clinker silo usually adopts a grid structure, which is composed of multiple rods and bolt ball nodes connected to each other. Multiple threaded holes are opened on the bolt balls, and external threads are opened at both ends of the rods. Multiple bolt balls are threadedly connected through rods to form a three-dimensional grid structure. This structure can make full use of the tensile and compressive properties of the material, so that the grid maintains the stability and bearing capacity of the structure under large spans and heights.

[0004] For example, the prior art "A steel roof structure of a clinker warehouse using a combination of welded balls and bolted balls" (publication number: CN114482379A) ​​discloses a connection structure between the vertical beams of the warehouse roof and the roof beams, but this structure still has the following technical problems:

[0005] Since the grid structure is formed by splicing multiple bolt balls and rods, during installation, it is easy for the distance between some bolt balls to exceed the standard distance due to processing errors and installation errors of the bolt balls and rods, resulting in the rod length being insufficient to allow the threads at both ends of the rod to be completely screwed into the threaded holes of the bolt balls. The threaded depth is insufficient, resulting in insufficient contact area between the rod and the bolt ball threads, which will cause the load stress on the rod to increase and the stress distribution between the bolt balls to be uneven, which can easily lead to plastic deformation or even fracture of the rod, and finally cause the risk of collapse of the entire grid. Utility Model Content

[0006] The utility model provides a grid node structure, which can solve the problem that the roof grid structure of the prior art is prone to processing errors and installation errors of bolt balls and rods, resulting in the thread of the rod being unable to be completely screwed into the bolt ball, thereby causing the load stress on the rod to increase, the grid structure to be unstable, and even causing the grid to collapse.

[0007] The present application provides the following technical solutions: a grid node structure, comprising a support beam, a support seat fixed on the support beam, a ball rack assembly fixed on the support seat, a roof truss assembly fixedly connected to the ball rack assembly, and a cover plate assembly fixed on the roof truss assembly;

[0008] The ball rack assembly comprises a lower bolt ball fixed on a support seat, an upper bolt ball fixed on a roof truss assembly, and a rod member threadedly connected between the lower bolt ball and the upper bolt ball, a connecting sleeve is fixed on the rod member, a threaded hole is provided in the middle of the connecting sleeve, both ends of the rod member can be threadedly connected to the threaded hole, and a concave surface is provided on the connecting sleeve to fit with the spherical surfaces of the upper bolt ball and the lower bolt ball;

[0009] The roof truss assembly includes a vertical beam fixed on the supporting beam and an inclined beam fixed on the upper end of the vertical beam. The vertical beam is arranged on the outside of the upper bolt ball and the lower bolt ball. A support is fixed between the upper bolt ball and the vertical beam, and a support is fixed between the lower bolt ball and the vertical beam and the inclined beam.

[0010] Beneficial effects:

[0011] 1. Improve the bearing capacity: The ball rack assembly can effectively deal with the processing and installation errors that may exist in the grid structure, ensuring that even if the length of the rod or the position of the bolt ball is slightly deviated, the length of the threaded hole of the bolt ball can be extended through the connecting sleeve, so that the excess thread of the rod can be screwed into the thread of the connecting sleeve, ensuring that the entire thread surface of the rod can be stressed, increasing the stress area of ​​the rod, and distributing the load to all thread surfaces on all rods, avoiding local stress concentration on the rod, and improving the bearing capacity of the ball rack assembly; at the same time, since the vertical beam forms the outer wall skeleton of the roof room, and the inclined beam constitutes the skeleton of the roof, fixing the support between the lower bolt ball and the vertical beam can make the side of the lower bolt ball and the vertical beam form a stress-bearing whole, and the upper bolt ball is fixed with a support on the vertical beam and the inclined beam at the same time, so that the upper bolt ball and the vertical beam and the inclined beam form a stress-bearing whole, and then under the action of the rod and the connecting sleeve, the upper bolt ball, the lower bolt ball, the vertical beam, and the inclined beam form a complete stress-bearing whole, which can effectively disperse the heavy weight load, thereby improving the bearing capacity and support strength of the overall structure.

[0012] 2. Improve structural stability: The rod will transfer the stress to the bolt ball through the connecting sleeve, and the concave surface of the connecting sleeve can fit with the spherical surface of the bolt ball, so that part of the stress can be dispersed on the bolt ball, ensuring the connection strength between the rod and the bolt ball and enhancing the overall stability of the structure.

[0013] Furthermore, the cover plate assembly includes a side plate fixed on the vertical beam and an inclined plate fixed on the inclined beam, and the vertical plate and the inclined plate are respectively fixed to the outside of the side plate and above the inclined beam through a slat.

[0014] Beneficial effect: Through the close combination of the side panels and inclined panels with the vertical beams and inclined beams, the outer surface of the entire grid is covered to form a closed shell, which can resist external rain and snow and protect the cement clinker under the roof of the warehouse from being soaked and agglomerated by rainwater.

[0015] Furthermore, a steel plate is pre-embedded on the support beam, the support seat is welded and fixed on the steel plate, and the upper end of the support seat is welded to the lower bolt ball.

[0016] Beneficial effect: Since the support beam is usually made of concrete, pre-embedded steel plates on the support beam facilitate welding and fixing the support seat on the top of the support beam, which is beneficial to supporting the lower bolt ball and improving the supporting stability of the entire ball rack assembly.

[0017] Furthermore, water retaining bricks are fixed on the support beam, and the water retaining bricks are fixed on the inner side of the lower bolt ball and form a circle.

[0018] Beneficial effect: The water retaining bricks are fixed on the inner side of the lower bolt ball and form a circle to form an effective waterproof barrier, which can effectively prevent rainwater or other water sources from penetrating into the center of the roof room from the structural gaps, and prevent rainwater from flowing into the silo under the roof room and soaking the cement clinker. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the structural front view of the utility model.

[0020] Figure 2 for Figure 1 A magnified view of center. DETAILED DESCRIPTION

[0021] The following is further described in detail through specific implementation methods:

[0022] The marks in the drawings of the specification include: supporting beam 1, steel plate 101, retaining brick 2, sandalwood strip 3, vertical plate 4, support 5, vertical beam 6, inclined beam 7, inclined plate 8, support seat 9, lower bolt ball 10, rod 11, connecting sleeve 12, upper bolt ball 13, silo 14, warehouse roof 15, connecting rod 16, node ball 17.

[0023] Embodiment 1

[0024] like Figure 1 and Figure 2 As shown, a grid node structure is located at the connection between the side wall and the roof of the warehouse top room 15, including a support beam 1 fixed on the top plate of the silo 14, a support seat 9 fixed above the support beam 1, a ball rack assembly fixed on the support seat 9, a roof truss assembly fixedly connected to the ball rack assembly, and a cover plate assembly fixed on the roof truss assembly. The support beam 1 is made of concrete, a steel plate 101 is pre-embedded on the upper surface of the support beam 1, and the support seat 9 is welded and fixed on the steel plate 101.

[0025] The ball rack assembly includes a lower bolt ball 10 welded and fixed on a support seat 9, an upper bolt ball 13 located above the lower bolt ball 10, and a rod 11 threadedly connected between the lower bolt ball 10 and the upper bolt ball 13. The lower bolt ball 10 is welded above the support seat 9, and a plurality of threaded holes are provided on the upper bolt ball 13 and the lower bolt ball 10. External threads are provided at both ends of each rod 11. The ball rack assembly also includes a plurality of node balls 17 and a plurality of connecting rods 16 threadedly connected between the node balls 17. The node balls 17 are also provided with a plurality of threaded holes. External threads are provided at both ends of the connecting rods 17. The rod 11 is vertically connected between the upper bolt ball 13 and the lower bolt ball 10. The connecting rods 17 are mutually connected between the upper bolt ball 13, the lower bolt ball 10 and the node balls to form an integral grid. The connecting parts of the rod 11 and the upper bolt ball 13 and the lower bolt ball 10 are respectively provided with connecting sleeves 12, which are cylindrical, and one end of the cylindrical body is provided with a concave surface, and the concave surface of the connecting sleeve 12 fits with the spherical surface of the upper bolt ball 13 and the lower bolt ball 10 at the corresponding position, and a threaded hole is axially provided in the middle of the connecting sleeve 12, and the two ends of the rod 11 can be screwed into the threaded holes of the connecting sleeve 12 and then extended into the threaded holes of the upper bolt ball 13 or the lower bolt ball 10 for fixing. Water retaining bricks 2 are also laid on the support beam 1, and the water retaining bricks 2 are located on the inner side of the lower bolt ball 10 and form a circle around the ground of the entire warehouse roof 15.

[0026] The roof truss assembly includes a vertical beam 6 welded and fixed on the supporting beam 1 and an oblique beam 7 welded and fixed to the upper end of the vertical beam 6. The vertical beam 6 is a square tube. The vertical beam 6 is arranged on the outside of the upper bolt ball 13 and the lower bolt ball 10. A support 5 is fixed between the vertical beam 6 and the upper bolt ball 13 and the lower bolt ball 10. A support 5 is fixed between the oblique beam 7 and the upper bolt ball 13. One end of the support 5 is fixedly connected to the vertical beam 6 and the oblique beam 7 by screws, and the other end of the support 5 is fixed to the upper bolt ball 13 or the lower bolt ball 10 by welding.

[0027] The cover plate assembly includes side plates fixed on the vertical beam 6 and an inclined plate 8 fixed on the inclined beam 7. A steel bar 3 is provided between the vertical plate 4 and the vertical beam 6 and between the inclined beam 7 and the inclined plate 8. The steel bar 3 is a C-shaped steel beam. Screws can be driven into the steel bar 3 to connect and fix the vertical plate 4 and the inclined plate 8 to the vertical beam 6 and the inclined beam 7 respectively.

[0028] The application works as follows:

[0029] When installing the ball rack assembly, after screwing the connecting sleeves 12 at both ends of the rod 11, screw the ends of the rod 11 into the threaded holes of the upper bolt ball 13 or the lower bolt ball 10, and twist the connecting sleeve 12 so that the concave surface of the connecting sleeve 12 is close to the spherical surface of the upper bolt ball 13 or the lower bolt ball 10. Even if there are processing errors and installation errors in the various components of the entire grid, the length of the threaded hole of the bolt ball can be extended through the connecting sleeve 12, so that the excess thread of the rod 11 can be screwed into the thread of the connecting sleeve 12, and the stress of the rod 11 can be transmitted to the spherical surface of the bolt ball through the connecting sleeve 12. At the same time, it is ensured that the entire threaded surface of the rod 11 can be stressed, thereby increasing the stress-bearing area of ​​the rod 11 and distributing the load to all rods 11. The threaded surface can avoid local stress concentration of the rod 11 and improve the bearing capacity of the ball rack assembly. At the same time, since the vertical beam 6 forms the outer wall skeleton of the roof room, and the inclined beam 7 constitutes the skeleton of the roof, the support 5 is fixed between the lower bolt ball 10 and the vertical beam 7, so that the side of the lower bolt ball 10 and the vertical beam 6 can form a force-bearing whole, and the upper bolt ball 13 is fixed with the support 5 with the vertical beam 6 and the inclined beam 7 at the same time, so that the upper bolt ball 13 and the vertical beam 6 and the inclined beam 7 form a force-bearing whole, and under the connecting action of the rod 11 and the connecting sleeve 12, the upper bolt ball 13, the lower bolt ball 10, the vertical beam 6, and the inclined beam 7 form a complete force-bearing whole, which can effectively disperse the heavy weight load, thereby improving the bearing capacity and supporting strength of the overall structure.

[0030] The above is only an embodiment of the utility model. The utility model is not limited to the field involved in this implementation case. The common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the utility model, which should also be regarded as the protection scope of the utility model, and these will not affect the effect of the implementation of the utility model and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A grid node structure, comprising a support beam, a support seat fixed on the support beam, a ball rack assembly fixed on the support seat, a roof truss assembly fixedly connected to the ball rack assembly, and a cover plate assembly fixed on the roof truss assembly, characterized in that: The ball rack assembly comprises a lower bolt ball fixed on a support seat, an upper bolt ball fixed on a roof truss assembly, and a rod member threadedly connected between the lower bolt ball and the upper bolt ball, wherein a connecting sleeve is sleeved on the rod member, a threaded hole is provided in the middle of the connecting sleeve, and the end of the rod member can be threadedly connected to the threaded hole, and a concave surface is provided on the connecting sleeve to fit the spherical surfaces of the upper bolt ball and the lower bolt ball; The roof truss assembly includes a vertical beam fixed on the supporting beam and an inclined beam fixed on the upper end of the vertical beam. The vertical beam is arranged on the outside of the upper bolt ball and the lower bolt ball. A support is fixed between the upper bolt ball and the vertical beam, and a support is fixed between the lower bolt ball and the vertical beam and the inclined beam.

2. A grid node structure according to claim 1, characterized in that: The cover plate assembly comprises a side plate fixed on the vertical beam and an inclined plate fixed on the inclined beam. The vertical plate and the inclined plate are respectively fixed on the outer side of the side plate and above the inclined beam through a truss.

3. A grid node structure according to claim 2, characterized in that: A steel plate is also pre-buried on the support beam, the support seat is welded and fixed on the steel plate, and the upper end of the support seat is welded to the lower bolt ball.

4. A grid node structure according to claim 3, characterized in that: Water retaining bricks are also fixed on the support beam, and the water retaining bricks are fixed on the inner side of the lower bolt ball and form a circle.

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