Large arm extension cylinder reinforcing structure of tunneling drill jumbo

Abstract

The utility model discloses a big arm extension cylinder reinforcing structure of a tunneling drill jumbo, which belongs to the field of tunneling drill jumbo and comprises a jumbo big arm extension cylinder, a connecting flange and a reinforcing piece, the connecting flange is mounted at the outer end of the jumbo big arm extension cylinder, and the reinforcing piece is inserted into the jumbo big arm extension cylinder. The reinforcer is of a tubular structure with the outer diameter smaller than or equal to the inner diameter of the trolley big arm extending cylinder, and the outer edge of the reinforcer is connected with the outer end of the trolley big arm extending cylinder in a welded mode. According to the utility model, the reinforcer is inserted into the large-arm extension cylinder of the trolley, the reinforcer is fixed in a welding manner, and the reinforcer is used for supporting the interior of the large-arm extension cylinder of the trolley, so that the anti-bending strength near the connecting part of the large-arm extension cylinder of the trolley and the connecting flange is improved; by using the reinforcing structure to reinforce, the installation is fast, and the operation rate of the equipment is further improved.

Description

Technical Field

[0001] The utility model relates to the field of tunneling and rock drilling trolleys, in particular to a reinforcement structure of a boom extension tube of a tunneling and rock drilling trolley. Background Art

[0002] The boom extension tube of the existing drilling rig, such as the boom extension tube 1 of the Boomer281 drilling rig, is prone to small arc bending deformation at the joint of the boom extension tube connected to the turning cylinder if it is improperly operated and suddenly subjected to force during production operations. Figure 1 As shown in Part A, Figure 1 It includes a trolley boom extension tube 1 and a connecting flange 2 for connection. After bending and deformation, the turning cylinder will not turn over at the right angle during the turning process, which seriously affects the construction quality and production efficiency. Utility Model Content

[0003] The utility model aims to solve the problems raised in the background technology and designs a reinforcement structure of a boom extension tube of a tunneling and rock drilling trolley.

[0004] To achieve the above-mentioned purpose, the technical solution of the utility model is a tunneling and rock drilling trolley boom extension tube reinforcement structure, including a trolley boom extension tube, a connecting flange, and a reinforcement member, the outer end of the trolley boom extension tube is installed with a connecting flange, the trolley boom extension tube is inserted with a reinforcement member, the reinforcement member is a tubular structure with an outer diameter less than or equal to the inner diameter of the trolley boom extension tube, and the outer edge of the reinforcement member is welded to the outer end of the trolley boom extension tube.

[0005] Furthermore, a tapered portion is formed on the inner wall of the reinforcing member, and the thickness of the reinforcing member of the tapered portion gradually decreases from the inside to the outside.

[0006] Furthermore, a welding cone surface is formed on the outer wall of the outer end of the reinforcement member close to the connecting flange end, and the welding cone surface is filled with a welding part, and the welding part is the welding material after welding is completed.

[0007] Furthermore, a positioning rod is detachably mounted on the outer end of the reinforcement, and the length of the positioning rod is longer than the inner diameter of the extension tube of the trolley boom.

[0008] Furthermore, a connecting screw rod passes through the positioning rod, and a thread groove is formed on the reinforcing member. The positioning rod is screwed into the thread groove by the connecting screw rod and can be detachably mounted on the reinforcing member.

[0009] Beneficial effects:

[0010] The utility model provides a reinforcement structure for an extension tube of the boom of a tunneling and rock drilling trolley, which has the following beneficial effects. Through its structural design, the device inserts a reinforcement member in the extension tube of the boom of the trolley, fixes the reinforcement member by welding, and supports the inside of the extension tube of the boom of the trolley by the reinforcement member, thereby increasing the bending strength near the connection between the boom extension tube of the trolley and the connecting flange. Compared with repairing after a break, the reinforcement installation using the reinforcement structure is faster, thereby improving the operation rate of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of the boom extension tube of the prior art excavation and rock drilling trolley described in the utility model;

[0012] Figure 2 It is a structural schematic diagram of the reinforcement structure of the boom extension tube of the excavation and rock drilling trolley of the utility model;

[0013] Figure 3 It is a structural schematic diagram of the reinforcement structure of the boom extension tube of the excavation and rock drilling trolley of the utility model;

[0014] Figure 4 It is a structural schematic diagram of the reinforcement structure of the boom extension tube of the tunneling and rock drilling trolley described in the utility model.

[0015] In the figure, 1. extension tube of the trolley boom; 2. connecting flange; 3. reinforcement; 4. cone; 5. welding cone surface; 6. welding part; 7. positioning rod; 8. connecting screw; 9. threaded groove. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present invention, it should be noted that the terms "upper / lower end", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0018] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "setting / sleeving", "sleeve connection", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0019] See also Figure 2-4 The utility model provides a technical solution: a reinforcement structure of a boom extension tube of a tunneling and rock drilling trolley, comprising a trolley boom extension tube 1, a connecting flange 2, and a reinforcement member 3. The outer end of the trolley boom extension tube 1 is installed with a connecting flange 2, and the trolley boom extension tube 1 is inserted with a reinforcement member 3. The reinforcement member 3 is a tubular structure with an outer diameter less than or equal to the inner diameter of the trolley boom extension tube 1. The outer edge of the reinforcement member 3 is welded to the outer end of the trolley boom extension tube 1.

[0020] In the utility model, a tapered portion 4 is provided on the inner wall of the inner side of the reinforcement member 3, and the thickness of the reinforcement member 3 of the tapered portion 4 gradually decreases from the inside to the outside. Since the main bending position of the boom extension tube 1 occurs at a position close to the connecting flange 2, and the bending degree at a position away from the connecting flange 2 is relatively low, the tapered portion 4 reduces the thickness of the reinforcement member 3 at a position away from the connecting flange 2, thereby reducing the weight of the reinforcement member 3, thereby preventing the overweight reinforcement member 3 from affecting the normal operation of the excavation drilling trolley.

[0021] In the utility model, a welding cone 5 is opened on the outer wall of the outer end of the reinforcement 3 close to the connecting flange 2, and the welding cone 5 is filled with a welding part 6. The welding part 6 is the welding material after welding is completed. The welding cone 5 increases the welding connection area between the reinforcement 2 and the trolley boom extension tube 1, thereby increasing the connection strength of the reinforcement 2.

[0022] In the utility model, a positioning rod 7 is detachably installed on the outer end of the reinforcement 3. The length of the positioning rod 7 is longer than the inner diameter of the trolley boom extension tube 1. The positioning rod 7 is used to position the reinforcement 3 when the reinforcement 3 is inserted into the trolley boom extension tube 1, thereby facilitating subsequent welding work.

[0023] In the utility model, a connecting screw 8 passes through the positioning rod 7, and a threaded groove 9 is opened on the reinforcement 3. The positioning rod 7 is screwed into the threaded groove 9 by the connecting screw 8 and can be detachably installed on the reinforcement 3. The threaded connection is convenient for disassembly and assembly. During processing, the position of the reinforcement 3 is first fixed by spot welding, and then the connecting screw 8 is removed and then the positioning rod is removed, and then welding is performed until the welding material welding portion 6 fills the gap between the welding cone surface 5 and the trolley boom extension tube.

[0024] In this embodiment:

[0025] By inserting the reinforcement 3 into the trolley boom extension tube 1 and fixing the reinforcement 3 by welding, the reinforcement 3 is used to support the inside of the trolley boom extension tube 1, thereby increasing the bending strength near the connection between the trolley boom extension tube 1 and the connecting flange 2. Compared with repairing after a break, the reinforcement installation efficiency using this reinforcement structure is higher, thereby improving the operation rate of the equipment.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reinforcement structure for a boom extension tube of a tunnel drilling trolley, comprising a trolley boom extension tube (1), a connecting flange (2), and a reinforcement member (3), characterized in that: The outer end of the trolley boom extension tube (1) is provided with a connecting flange (2), and a reinforcing member (3) is inserted into the trolley boom extension tube (1). The reinforcing member (3) is a tubular structure with an outer diameter less than or equal to the inner diameter of the trolley boom extension tube (1), and the outer edge of the reinforcing member (3) is welded to the outer end of the trolley boom extension tube (1).

2. The reinforcement structure of the boom extension tube of the excavation drilling rig according to claim 1 is characterized in that: The inner wall of the reinforcing member (3) is provided with a tapered portion (4), and the thickness of the reinforcing member (3) of the tapered portion (4) gradually decreases from the inside to the outside.

3. The reinforcement structure of the boom extension tube of the excavation drilling rig according to claim 1 is characterized in that: A welding cone surface (5) is formed on the outer wall of the outer end of the reinforcement member (3) close to the connecting flange (2), and a welding portion (6) is filled in the welding cone surface (5). The welding portion (6) is welding material after welding is completed.

4. The reinforcement structure of the boom extension tube of the excavation drilling rig according to claim 1 is characterized in that: A positioning rod (7) is detachably mounted on the outer end of the reinforcement member (3), and the length of the positioning rod (7) is longer than the inner diameter of the trolley boom extension tube (1).

5. The reinforcement structure of the boom extension tube of the excavation drilling rig according to claim 4 is characterized in that: The positioning rod (7) is penetrated by a connecting screw rod (8), the reinforcing member (3) is provided with a thread groove (9), and the positioning rod (7) is screwed into the thread groove (9) by the connecting screw rod (8) and can be detachably mounted on the reinforcing member (3).

Images