CN116696407A - Anti-slip steering connecting piece, steel pipe arch-shaped supporting system and construction method - Google Patents

Abstract

An anti-slip steering joint of the present invention comprises: the clamp assembly is sleeved and fixed on the steel pipe arch support and is in interference fit with the steel pipe arch support, and the connecting rod connecting piece is used for clamping the oblique connecting rod so as to realize oblique connection of two anti-sliding connecting structures on two adjacent steel pipe arch supports; the connection parts between the two steering connecting pieces, the steering connecting piece and the clamp assembly and the connecting piece between the steering connecting piece and the connecting rod connecting piece adopt a connection mode of concave-convex tooth mouth occlusion. The steel pipe arch support system comprises a plurality of steel pipe arch supports, and two adjacent steel pipe arch supports are connected through a plurality of longitudinal connecting rods and a plurality of oblique connecting rods; two ends of the oblique connecting rod are respectively connected with the steel pipe arch support through anti-slip steering connecting pieces.

Description

An anti-slip steering connector, steel pipe arch support system and construction method

technical field

The invention belongs to the technical field of roadway support, and relates to an anti-slip steering connector, a steel pipe arch support system and a construction method.

Background technique

With the further increase of coal mine mining depth, the roadway mine pressure becomes more intense, and the deep mine roadway support and soft rock roadway support have become important problems to be solved in coal mine roadway support. At present, U-shaped steel metal supports are widely used in coal mine roadway support. In actual engineering, U-shaped steel brackets often slide at the collars where adjacent segments are connected. In addition, because the U-shaped steel support cannot be connected in the longitudinal direction, its overall stability is poor. For large-section coal mine roadways or when the surrounding rock pressure of the roadway is high, this support structure faces the problem of insufficient bearing capacity.

Contents of the invention

In order to solve the above technical problems, the object of the present invention is to provide an anti-skid steering connector, a steel pipe arch support system and a construction method.

The invention provides an anti-slip steering connector, comprising: a clamp assembly connected in sequence, two steering connectors and a connecting rod connector, the clamp assembly is sleeved and fixed on the steel pipe arch support and Shaped support interference fit, the connecting rod connecting piece is used to clamp the oblique connecting rod to realize the oblique connection of the two anti-slip connecting pieces on the arch supports of two adjacent steel pipes; the connection between the two steering connecting pieces The connection between the steering connector and the clamp assembly, the steering connector and the connecting rod connector adopts the connection form of concave and convex teeth.

Further, the steering connector includes two circular connecting surfaces perpendicular to each other, a threaded hole is provided at the center of the circular connecting surface, and a concave-convex tooth structure is provided on the edge of the circular connecting surface; the two steering connecting surfaces After the concave-convex tooth mouth structure of the parts is engaged, they are locked by bolts; the axes of the two connected steering parts are perpendicular to each other.

Further, the hoop assembly includes two arc hoops, and the two arc hoops are fastened to the steel pipe arch support through bolt connection; the arc hoop connected with the steering connector is provided with concave-convex teeth The structure, the clamp assembly and the steering connector are occluded and connected by two concave-convex teeth structures and then locked by bolts.

Further, the connecting rod connecting piece includes two semicircular clamps, and the two semicircular clamps are connected by bolts to clamp the oblique connecting rod; the semicircular clamp connected with the steering connecting piece is provided with The concave-convex tooth structure, the connecting rod connecting piece and the steering connecting piece are occluded and connected by two concave-convex tooth structure, and then locked by bolts.

The present invention also provides a steel pipe arch support system, which includes multiple steel pipe arch supports, and two adjacent steel pipe arch supports are connected by a plurality of longitudinal connecting rods and a plurality of oblique connecting rods; the oblique connecting rods The two ends are respectively connected to the steel pipe arch support through corresponding connecting pieces; the connecting pieces adopt the above-mentioned anti-slip steering connecting pieces.

The present invention also provides a construction method for a steel pipe arch support system, comprising:

Step 1: Connect two adjacent steel pipe arch supports through multiple longitudinal connecting rods to complete the assembly of multiple steel pipe arch supports along the extension direction of the roadway;

Step 2: Hoop the clamp assembly to the steel pipe arch support, and lock the two arc clamps with bolts;

Step 3: After adjusting the connection direction of the two steering connectors, bite and lock through the concave-convex tooth structure, and then fix the connection with bolts;

Step 4: Adjust the connection direction of one steering connector and the clamp assembly, and at the same time adjust the connection direction of the other steering connector and the connecting rod connector, so that the steering connector and the clamp assembly, the steering connector and the connecting rod The connection direction is fixed by the concave-convex teeth bite and lock between the rod connectors, and then locked by bolts;

Step 5: Repeat steps 2-4 to install another anti-skid steering connector to the adjacent steel pipe arch support;

Step 6: Clamp the two ends of the oblique connecting rod through the connecting rod connectors of the two anti-slip steering connectors, so as to realize the oblique support between the arched supports of two adjacent steel pipes;

Step 7: Repeat steps 2-6 to connect multiple oblique connecting rods to complete the assembly of the steel tube arch support system.

An anti-slip steering connector, steel pipe arch support system and construction method of the present invention have at least the following technical effects:

The steel pipe arch support system of the present invention is a closed type, and has a higher bearing capacity than the semi-closed U-shaped steel support system. Moreover, multiple longitudinal and oblique supports can be set between two adjacent steel pipe arches, which enhances the overall stability of the support system. The hoop assembly is set and fixed on the steel pipe arch support and has an interference fit with the steel pipe arch support, which can prevent the connection from loosening and relative slippage, and can also transmit a certain torque. The arched support of the steel pipe is clamped by the clamp assembly, which is applicable to the arched support of the steel pipe with different diameters, and the angle can be adjusted by setting two steering connectors. By setting multiple sets of anti-slip steering connectors, two adjacent steel pipe arch supports can form multiple oblique supports. The setting of oblique supports can provide sufficient support for the steel pipe arch support along the axial direction. , increase the longitudinal stiffness of the entire support system, and make the steel pipe arch support more stable. Compared with ordinary connectors, the anti-slip steering connector of the present invention can adjust the connection direction and number of oblique connecting rods according to requirements, add oblique supports, and increase the bearing capacity of the support system.

Description of drawings

Fig. 1 is a structural schematic diagram of an anti-skid steering connector of the present invention;

Fig. 2 is a schematic structural view of the steering connector of the present invention;

Fig. 3 is a schematic structural view of the connecting rod connector of the present invention;

Fig. 4 is the structural representation of steel pipe arch support system of the present invention;

1-clamp assembly, 11-arc clamp, 2-steering connector, 21-circular connecting surface, 22-threaded hole, 3-connecting rod connector, 31-semicircular clamp, 4-steel pipe arch Shape support, 5-diagonal connecting rod, 6-concave-convex tooth structure, 7-bolt, 8-longitudinal connecting rod.

Detailed ways

As shown in Figures 1 to 3, an anti-slip steering connector of the present invention includes: a clamp assembly 1 connected in sequence, two steering connectors 2 and a connecting rod connector 3, the clamp assembly 1 set Set to be fixed on the steel pipe arch support 4 and interference fit with the steel pipe arch support 4, the connecting rod connector 3 is used to clamp the oblique connecting rod 5 to realize two adjacent steel pipe arch supports. Angled connections for anti-slip connections. The connections between the two steering connectors 2 , between the steering connector 2 and the clamp assembly 1 , and between the steering connector 2 and the connecting rod connector 3 adopt the connection form of concave-convex teeth bite.

As shown in Figure 2, the steering connector 2 includes two mutually perpendicular circular connecting surfaces 21, a threaded hole 22 is provided at the center of the circular connecting surface 21, and a concave-convex surface is provided on the edge of the circular connecting surface 21. Tooth mouth structure6. The concave-convex tooth mouth structures 6 of the two steering connectors 2 are engaged and then locked by the bolts 7; the axes of the connected two steering connectors 2 are perpendicular to each other.

As shown in Figure 1, the clamp assembly 1 includes two arc clamps 11, which are connected and fastened to the steel pipe arch support 4 by bolts 7; the arc connected to the steering connector The clamp 11 is provided with a concave-convex tooth gap structure 6 , and the clamp assembly 1 and the steering connector 2 are occluded and connected by the two concave-convex tooth gap structures 6 and then locked by the bolt 7 .

As shown in Figure 3, the link connector 3 includes two semicircular hoops 31, and the two semicircular hoops 31 are connected by bolts 7 to clamp the oblique connecting rod 5; The semicircular hoop 31 is provided with a concave-convex tooth gap structure 6, and the connecting rod connector 3 and the steering connector 2 are locked through the bolt 7 after the two concave-convex tooth gap structures 6 are occluded and connected.

As shown in Figure 4, the steel pipe arch support system of the present invention includes multiple steel pipe arch supports 4, and the adjacent two steel pipe arch supports 4 are connected by a plurality of longitudinal connecting rods 8 and a plurality of oblique connecting rods 5 . Both ends of the oblique connecting rod 5 are respectively connected to the steel pipe arch support 4 through corresponding anti-slip steering connectors.

A construction method for a steel pipe arch support system of the present invention comprises the following steps:

Step 1: Connect two adjacent steel pipe arch supports through multiple longitudinal connecting rods to complete the assembly of multiple steel pipe arch supports along the roadway extension direction;

Step 2: Hoop the clamp assembly to the steel pipe arch support, and lock the two arc clamps with bolts;

Step 3: After adjusting the connection direction of the two steering connectors, bite and lock through the concave-convex tooth structure, and then fix the connection with bolts;

Step 4: Adjust the connection direction of one steering connector and the clamp assembly, and at the same time adjust the connection direction of the other steering connector and the connecting rod connector, so that the steering connector and the clamp assembly, the steering connector and the connecting rod The connection direction is fixed by the concave-convex teeth bite and lock between the rod connectors, and then locked by bolts;

Step 5: Repeat steps 2-4 to install another anti-skid steering connector to the adjacent steel pipe arch support;

Step 6: Clamp the two ends of the oblique connecting rod through the connecting rod connectors of the two anti-slip steering connectors, so as to realize the oblique support between the arched supports of two adjacent steel pipes;

Step 7: Repeat steps 2-6 to connect multiple oblique connecting rods to complete the assembly of the steel tube arch support system.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the idea of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the present invention. within the scope of protection.

Claims (6)

1. An anti-slip steering connector, characterized in that it comprises: a hoop assembly connected in sequence, two steering connectors and a connecting rod connector, the hoop assembly is sleeved and fixed on the steel pipe arch support and Interference fit with the steel pipe arch support, the connecting rod connector is used to clamp the oblique connecting rod to realize the oblique connection of the two anti-slip connectors on the adjacent two steel pipe arch supports; the two steering The joints between the connecting parts, between the steering connecting part and the hoop assembly, between the steering connecting part and the connecting rod connecting part adopt the connection form of concave-convex teeth bite. 2. The anti-slip connector according to claim 1, wherein the steering connector comprises two mutually perpendicular circular connecting surfaces, a threaded hole is provided at the center of the circular connecting surface, and the circular connecting surface The edge of the shaped connecting surface is provided with a concave-convex tooth gap structure; the concave-convex tooth gap structures of the two steering connectors are engaged and then locked by bolts; the axes of the connected two steering connectors are perpendicular to each other. 3. The anti-slip connector according to claim 2, wherein the clamp assembly comprises two arc clamps, and the two arc clamps are fastened to the steel pipe arch support by bolt connection; The arc-shaped clamp connected with the steering connector is provided with a concave-convex tooth gap structure, and the clamp assembly and the steering connector are occluded and connected by the two concave-convex tooth gap structures and then locked by bolts. 4. The anti-slip connector according to claim 2, wherein the connecting rod connector includes two semicircular clamps, and the two semicircular clamps are connected by bolts to clamp the diagonal connection. Rod; the semicircular clamp connected to the steering connector is provided with a concave-convex tooth structure, and the connecting rod connecting piece and the steering connector are occluded and connected by two concave-convex tooth structures and then locked by bolts. 5. A steel pipe arch support system, characterized in that it comprises multiple steel pipe arch supports, and the adjacent two steel pipe arch supports are connected by a plurality of longitudinal connecting rods and a plurality of oblique connecting rods; The two ends of the connecting rod are respectively connected to the arched support of the steel pipe through corresponding connecting pieces; the connecting piece adopts the anti-slip steering connecting piece as described in any one of claims 1 to 4. 6. A construction method for a steel pipe arch support system, characterized in that it comprises: Step 1: Connect two adjacent steel pipe arch supports through multiple longitudinal connecting rods to complete the assembly of multiple steel pipe arch supports along the extension direction of the roadway; Step 2: Hoop the clamp assembly to the steel pipe arch support, and lock the two arc clamps with bolts; Step 3: After adjusting the connection direction of the two steering connectors, bite and lock through the concave-convex tooth structure, and then fix the connection with bolts; Step 4: Adjust the connection direction of one steering connector and the clamp assembly, and at the same time adjust the connection direction of the other steering connector and the connecting rod connector, so that the steering connector and the clamp assembly, the steering connector and the connecting rod The connection direction is fixed by the concave-convex teeth bite and lock between the rod connectors, and then locked by bolts; Step 5: Repeat steps 2-4 to install another anti-skid steering connector to the adjacent steel pipe arch support; Step 6: Clamp the two ends of the oblique connecting rod through the connecting rod connectors of the two anti-slip steering connectors, so as to realize the oblique support between the arched supports of two adjacent steel pipes; Step 7: Repeat steps 2-6 to connect multiple oblique connecting rods to complete the assembly of the steel tube arch support system.