Main connecting top frame of double-telescopic airborne temporary support

Abstract

The utility model discloses a main connecting top frame of a double-telescopic onboard temporary support, and belongs to the technical field of temporary support devices under mines. The device comprises two supporting columns which are oppositely arranged; a plurality of arched arch bar assemblies are arranged between the supporting columns; the supporting column is of a hollow column structure with the hollow interior. Side supports are arranged on the opposite side end faces of the two supporting columns. A connecting seat matched with a movable arm on the heading machine for mounting is arranged on the tail side, corresponding to the supporting column, of the side bracket; a guide groove is formed in the side wall of the supporting column. The guide groove extends towards the tail of the support column from the front end of the support column; a first-stage hydraulic rod is further arranged in an inner cavity of the supporting column. The fixed end of the first-stage hydraulic rod is mounted at the tail part of the support column, and the extending end can move along the direction of the guide groove; according to the utility model, the problems that the currently adopted multi-section telescopic temporary supporting structure is lack of a main top frame and cannot effectively provide an effective supporting effect for the rear side of the machine head of the heading machine are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of temporary support devices under mines, in particular to a main connecting top frame of a double-telescopic machine-mounted temporary support. Background Art

[0002] The hydraulic support system is a device for supporting the roof structure in the upper tunnel at the mining end. In order to solve the problem that the conventional hydraulic support structure is difficult to carry and move, and cannot provide reliable support during excavation work, the applicant has designed a patent document with application number 2023110260574, "A temporary hydraulic support device on a tunneling machine and its use method"; but in the actual use process, the staff found that its support effect still cannot meet the specific use requirements, which is mainly reflected in the fact that the overall structure of the currently used flip-type temporary support device is still large, and the hydraulic telescopic rod on the front side lacks effective protection, and the support effect is not ideal; the applicant is considering using a multi-section telescopic support structure. For this purpose, it is necessary to first design the main top frame of the telescopic support structure, which is also the original intention of proposing this application. Utility Model Content

[0003] The technical problem to be solved by the present invention is to provide a main connecting top frame for a double-telescopic machine-mounted temporary support, so as to solve the problem that the currently used multi-section telescopic temporary support structure lacks a main top frame and cannot effectively provide effective support for the rear side of the head of the tunnel boring machine.

[0004] In order to solve the above problems, the present invention provides the following technical solutions:

[0005] A main connecting top frame for a double-telescopic machine-mounted temporary support; it includes two oppositely arranged pillars; a plurality of arched arch rod assemblies are arranged between the pillars; the pillars are hollow column structures with a hollow interior; side supports are provided on the side end faces of the two pillars facing away from each other; a connecting seat for mounting with a movable arm on a tunnel boring machine is provided on the tail side of the side support corresponding to the pillar; a guide groove is provided on the side wall of the pillar; the guide groove starts from the front end of the pillar and extends toward its tail; a first-level hydraulic rod is also provided in the inner cavity of the pillar; the fixed end of the first-level hydraulic rod is installed at the tail of the pillar, and its protruding end can move along the direction of the guide groove.

[0006] Preferably, there are three groups of arch rod assemblies, which are respectively arranged at the front side, the front middle and the rear middle of the pillar; a transverse arch column is also provided at the tail of the pillar; the transverse arch column and the three arch rod assemblies are evenly arranged along the length direction of the pillar.

[0007] Furthermore, the transverse arch column includes two sections of arch columns arranged opposite to each other, one end of the arch column is respectively connected to the tail of the two pillars, and the two sections of the arch column are connected by a square frame; a locking rod is provided in the middle of the square frame; and a hanging ring is also provided on the tail side of the transverse arch column.

[0008] Furthermore, splints are provided at the tail of the pillar and the upper and lower end faces of the transverse arch column; connecting plates are also installed at the positions between the corresponding splints at the tail of the opposite end faces of the two pillars; positioning holes are opened on the connecting plate and the pillar, and the fixed end of the first-level hydraulic rod is installed at the positioning hole through a bolt.

[0009] Preferably, the arch rod assembly includes two C-shaped cross-section sleeves; the pillars on both sides are set through the corresponding sleeves, and the open side of the sleeve corresponds to the position of the guide groove on the pillar; curved plates are provided on the end planes of the upper and lower sides of the sleeve.

[0010] Preferably, the side bracket includes a positioning plate attached to the side end face of the pillar; a number of corresponding positioning holes are opened on the positioning plate and the pillar, and the two are connected at the positioning holes by a bolt assembly; a front cross plate and two rear cross plates perpendicular to the end side are respectively provided on the front and rear sides of the other end side of the positioning plate; the connecting seat is installed between the two rear cross plates; a connecting rod is also provided between adjacent front cross plates and rear cross plates.

[0011] Preferably, ribs are provided between the positioning plates and the corresponding connecting seats and the rear transverse plate.

[0012] Beneficial effects of the utility model:

[0013] The utility model designs a device that serves as the main top frame in a multi-section telescopic temporary support structure. It is improved on the overall basis of a conventional temporary support structure. A large number of hollow square steels are used as the structural main body of the original overall structure of the grating curved plate structure, and guide grooves are provided on the left and right side pillars. The hydraulic telescopic rod is installed in the inner cavity of the pillar, and its end can move along the extension direction of the guide groove. In addition, the application also transforms the arch rod part to avoid interference with the hydraulic telescopic rod during the movement, further optimizes the side support structure, and improves the bearing capacity of the main connecting bracket; it can ensure that the device can be effectively installed in conjunction with the tunneling machine; at the same time, it also has the advantage of being easy to process and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model in the embodiment;

[0015] Figure 2 yes Figure 1 A schematic diagram of the three-dimensional structure of the device in another perspective;

[0016] Figure 3 yes Figure 1 A schematic diagram of the three-dimensional structure of the device in another perspective;

[0017] Figure 4 yes Figure 1 A top view of the device;

[0018] Explanation of the accompanying reference numerals: 1. Pillar, 1A. Guide groove, 2. Arch rod assembly, 2A. Clamping sleeve, 2B. Curved plate, 3. Side bracket, 3A. Positioning plate, 3B. Front cross plate, 3C. Rear cross plate, 3D. Connecting rod, 4. Connecting seat, 5. Transverse arch column, 6. Frame, 7. Locking rod, 8. Clamping plate, 9. Connecting plate. DETAILED DESCRIPTION

[0019] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0020] Example:

[0021] Reference Figure 1 The present embodiment provides a main connecting top frame for a double-telescopic machine-mounted temporary support; it includes two oppositely arranged pillars 1; a plurality of arched arch rod assemblies 2 are arranged between the pillars 1; the pillars 1 are hollow column structures with a hollow interior; side brackets 3 are arranged on the opposite side end surfaces of the two pillars 1; a connecting seat 4 for mounting with the movable arm on the tunnel boring machine is arranged on the tail side of the side bracket 3 corresponding to the pillar 1; a guide groove 1A is opened on the side wall of the pillar 1; the guide groove 1A starts from the front end of the pillar 1 and extends toward its tail; a first-level hydraulic rod is also arranged in the inner cavity of the pillar 1; the fixed end of the first-level hydraulic rod is installed at the tail of the pillar 1, and its protruding end can move along the direction of the guide groove 1A.

[0022] There are three groups of arch rod assemblies 2, which are respectively arranged at the front side, the front middle and the rear middle of the pillar 1; a transverse arch column 5 is also provided at the tail of the pillar 1; the transverse arch column 5 and the three arch rod assemblies 2 are evenly arranged along the length direction of the pillar 1.

[0023] The transverse arch 5 consists of two opposing arch sections, one end of which is connected to the tail of each of the two pillars. The two sections are connected by a square frame 6. A locking rod 7 is provided in the middle of the square frame 6. A lifting ring is also provided at the tail of the transverse arch 5. In this embodiment, both the pillars and the transverse arch are hollow square column structures.

[0024] Clamping plates 8 are provided at the tail of the pillar 1 and the upper and lower end faces of the transverse arch column 5; connecting plates 9 are also installed at the positions between the clamping plates 8 at the tails of the opposite end faces of the two pillars 1; positioning holes are opened on the connecting plates 9 and the pillars 1, and the fixed end of the first-level hydraulic rod is installed at the positioning hole through bolts.

[0025] The arch rod assembly 2 includes two C-shaped cross-section sleeves 2A; the pillars 1 on both sides are set through the corresponding sleeves 2A, and the open side of the sleeve 2A corresponds to the position of the guide groove 1A on the pillar 1; curved plates 2B are provided on the upper and lower end planes of the sleeve 2A.

[0026] The side bracket 3 includes a positioning plate 3A attached to the side end face of the pillar 1; a number of corresponding positioning holes are opened on the positioning plate 3A and the pillar 1, and the two are connected at the positioning holes by a bolt assembly; a front cross plate 3B and two rear cross plates 3C perpendicular to the end side face are respectively provided on the front and rear sides of the other end side face of the positioning plate 3A; the connecting seat 4 is installed between the two rear cross plates 3C; a connecting rod 3D is also provided between the adjacent front cross plates 3B and rear cross plates 3C.

[0027] Ribs are provided between the positioning plate 3A and the corresponding connecting seats 4 and the rear transverse plate 3C.

[0028] In this embodiment, the utility model device is a rigid structure as a whole except for the primary hydraulic rod installed inside the support rod. When using the device, it only needs to be installed on the side support arm of the tunnel boring machine through the connecting seat.

Claims

1. A main connecting top frame for a double-telescopic airborne temporary support, comprising two oppositely arranged pillars (1); a plurality of arched arch rod assemblies (2) are arranged between the pillars (1); and characterized in that: The pillar (1) is a hollow column structure with a hollow interior; side brackets (3) are provided on the side end surfaces of the two pillars (1) facing each other; a connecting seat (4) for mounting with a movable arm on a tunnel boring machine is provided on the tail side of the side bracket (3) corresponding to the pillar (1); a guide groove (1A) is provided on the side wall of the pillar (1); the guide groove (1A) starts from the front end of the pillar (1) and extends toward the tail end thereof; a first-level hydraulic rod is also provided in the inner cavity of the pillar (1); the fixed end of the first-level hydraulic rod is installed at the tail end of the pillar (1), and the protruding end thereof can move along the direction of the guide groove (1A).

2. The main connecting top frame of the double-telescopic machine-mounted temporary support according to claim 1 is characterized in that: There are three groups of arch rod assemblies (2) arranged in total; they are arranged at the front side, the front middle and the rear middle of the pillar (1) respectively; a transverse arch column (5) is also arranged at the tail end of the pillar (1); the transverse arch column (5) and the three arch rod assemblies (2) are evenly arranged along the length direction of the pillar (1).

3. The main connecting top frame of the double-telescopic machine-mounted temporary support according to claim 2 is characterized in that: The transverse arch column (5) comprises two sections of arch columns arranged opposite to each other, one end of the arch column is connected to the tail of the two pillars respectively, and the two sections of the arch column are connected by a square frame (6); a locking rod (7) is provided in the middle of the square frame (6); and a hanging ring is also provided on the tail side of the transverse arch column (5).

4. The main connecting top frame of the double-telescopic machine-mounted temporary support according to claim 3 is characterized in that: Clamping plates (8) are provided at the tail of the pillar (1) and the upper and lower end surfaces of the transverse arch pillar (5); a connecting plate (9) is also installed at the position between the clamping plates (8) at the tail of the opposite end surfaces of the two pillars (1); positioning holes are opened on the connecting plate (9) and the pillar (1), and the fixed end of the first-level hydraulic rod is installed at the positioning hole by means of a bolt.

5. The main connecting top frame of the double-telescopic machine-mounted temporary support according to claim 1 is characterized in that: The arch rod assembly (2) includes two C-shaped cross-section sleeves (2A); the pillars (1) on both sides are arranged through the corresponding sleeves (2A), and the opening side of the sleeve (2A) corresponds to the position of the guide groove (1A) on the pillar (1); curved plates (2B) are provided on the upper and lower end planes of the sleeve (2A).

6. The main connecting top frame of the double-telescopic machine-mounted temporary support according to claim 1 is characterized in that: The side bracket (3) includes a positioning plate (3A) attached to the side end surface of the pillar (1); a plurality of corresponding positioning holes are opened on the positioning plate (3A) and the pillar (1), and the two are connected at the positioning holes by a bolt assembly; a front transverse plate (3B) and two rear transverse plates (3C) perpendicular to the end side surface are respectively provided on the front and rear sides of the other end side surface of the positioning plate (3A); the connecting seat (4) is installed between the two rear transverse plates (3C); and a connecting rod (3D) is also provided between adjacent front transverse plates (3B) and rear transverse plates (3C).

7. The main connecting top frame of the double-telescopic machine-mounted temporary support according to claim 1 is characterized in that: Ribs are provided between the positioning plate (3A) and the corresponding connecting seat (4) and the rear transverse plate (3C).

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