Assembly type structure of end part of boom of drill jumbo

Abstract

The utility model relates to the technical field of mine tunnel equipment, and discloses a drill jumbo boom end assembly structure which comprises an outer boom weldment, an inner boom weldment arranged on the right portion of the outer boom weldment, a scraper plate arranged on the left portion of the inner boom weldment, a scraper base plate arranged on the right side of the scraper plate, and a scraper base plate arranged on the right side of the scraper base plate. The scraper base plate and the scraper plate are fixed through a bolt, the bolt is used for providing stable fixation between the scraper plate and the scraper base plate, and a positioning pin hole is formed in the scraper plate and used for accurate installation between the scraper plate and the scraper base plate. According to the utility model, the outer arm weldment, the inner arm weldment, the doctor blade plate and the doctor blade base plate all use standardized interfaces and fixing modes, so that the requirements on special tools or special technologies in the assembly process are reduced, the whole assembly process is simplified, and meanwhile, the disassembly and replacement can be quickly completed under the condition that no special tools are used.

Description

Technical Field

[0001] The utility model relates to the technical field of mine tunnel equipment, in particular to an assembled structure of an end portion of a rock drilling trolley arm. Background Art

[0002] A drilling rig is also called a drilling rig. It is a kind of rock drilling equipment frequently used in tunnel and underground engineering construction. A drilling rig generally includes a drill rod, a boom (the support, positioning and propulsion mechanism of the rock drill), a car body, a traveling mechanism and other necessary ancillary equipment.

[0003] A telescopic boom assembly for a drilling rig consists of an outer boom and an inner boom. When the two are connected, mounting plates and mounting pads are typically installed. This is typically a monolithic structure, which can be difficult to maintain after assembly. Therefore, a prefabricated structure for the boom end of a drilling rig is provided to address the issues raised in the background art. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides an assembled structure for the end of the boom of a drilling rig, aiming to improve the problem that a telescopic arm assembly of a drilling rig in the prior art has an outer boom and an inner boom. When the two are connected, a mounting plate and a mounting pad are installed, which are generally an integral structure. This structure is difficult to maintain in the later stage of assembly.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an assembled structure at the end of a drilling rig arm, comprising an outer arm weldment, an inner arm weldment being provided on the right side of the outer arm weldment, a scraper plate being provided on the left side of the inner arm weldment, a scraper pad being provided on the right side of the scraper plate, and the scraper pad being fixed to the scraper plate by bolts.

[0006] Furthermore, the bolts are used to provide a firm fixation between the scraper plate and the scraper backing plate.

[0007] Furthermore, the scraper plate is provided with a positioning pin hole for accurate installation between the scraper plate and the scraper pad.

[0008] Furthermore, the bolt is threadedly connected inside the scraper pad and the scraper plate.

[0009] The utility model has the following beneficial effects:

[0010] 1. In the present invention, the outer arm weldment, inner arm weldment, scraper plate and scraper pad all use standardized interfaces and fixing methods, which reduces the need for special tools or special techniques during the assembly process, thereby simplifying the overall assembly process. The bolts adopt a quick-disassembly design, which can be quickly disassembled and replaced without the use of special tools.

[0011] 2. In the present invention, the stability of the scraper plate and the scraper pad is ensured by bolts, so that the force between the scraper plate and the scraper pad can be evenly distributed, reducing local stress concentration and enhancing the stability and durability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a three-dimensional diagram of the assembled structure of the boom end of a drilling rig proposed in the present invention;

[0013] Figure 2 This is a partial structural diagram of an assembled structure at the end of a rock drilling rig boom proposed in the present invention;

[0014] Figure 3 This is a schematic diagram of the scraper pad structure of an assembled structure at the end of the rock drilling rig arm proposed in the utility model.

[0015] Legend:

[0016] 1. Outer arm weldment; 2. Inner arm weldment; 3. Bolts; 4. Scraper plate; 5. Scraper pad. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] Reference Figure 1 、 Figure 2 and Figure 3 The utility model provides an embodiment: an assembled structure of the end of a rock drilling rig boom, comprising an outer arm weldment 1, an inner arm weldment 2 is provided on the right side of the outer arm weldment 1, a scraper plate 4 is provided on the left side of the inner arm weldment 2, a scraper pad 5 is provided on the right side of the scraper plate 4, and the scraper pad 5 is fixed to the scraper plate 4 by bolts 3;

[0019] The outer arm weldment 1 and the inner arm weldment 2 are connected, and the scraper pad 5 and the scraper plate 4 are fixed with bolts 3. The scraper pad 5 and the scraper plate 4 are separated into two upper and lower assembly structures, which have strong fixation and are not easy to loosen, and the later maintenance is simple and convenient.

[0020] Reference Figure 1 、 Figure 2 and Figure 3The bolt 3 is used to provide a firm fixation between the scraper plate 4 and the scraper pad 5. The scraper plate 4 is provided with a positioning pin hole for accurate installation between the scraper plate 4 and the scraper pad 5. The bolt 3 is threadedly connected to the inside of the scraper pad 5 and the scraper plate 4.

[0021] Working principle: When using this device, the outer arm weldment 1 and the inner arm weldment 2 are connected, and the scraper pad 5 and the scraper plate 4 are fixed with bolts 3. They are separated into two upper and lower assembly structures, which have strong fixation and are not easy to loosen. Later maintenance is simple and convenient.

[0022] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An assembled structure for the end of a drilling rig boom, comprising an outer arm weldment (1), characterized in that: An inner arm weldment (2) is provided on the right side of the outer arm weldment (1), a scraper plate (4) is provided on the left side of the inner arm weldment (2), a scraper pad (5) is provided on the right side of the scraper plate (4), and the scraper pad (5) and the scraper plate (4) are fixed by bolts (3).

2. The assembled structure of the boom end of a drilling rig according to claim 1, characterized in that: The bolts (3) are used to provide a firm fixation between the scraper plate (4) and the scraper backing plate (5).

3. The assembled structure of the boom end of a drilling rig according to claim 1, characterized in that: The scraper plate (4) is provided with a positioning pin hole for accurate installation between the scraper plate (4) and the scraper pad (5).

4. The assembled structure of the boom end of a drilling rig according to claim 1, characterized in that: The bolt (3) is threadedly connected to the interior of the scraper pad (5) and the scraper plate (4).

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