A kind of engineering drilling rig arm structure

Abstract

A construction drilling rig boom structure, comprising an open groove-shaped main boom body formed by integrally bending a plate, the open groove surface of the main boom body being covered with an upper sealing plate, the main boom body and the upper sealing plate being welded and fixed as a whole, reinforcing rib plates being welded and fixed on both sides of the main boom body, the head of which protrudes from the upper and lower ends of the main boom body, and upper cylinder hinge seats are provided at the upper and lower ends of the head, and a lower cylinder hinge seat is provided at the lower end, and an outer swivel arm hinge seat is provided at the tail of the reinforcing rib plate, and the outer swivel arm hinge seat is overlapped with the inner swivel arm hinge seat at the tail end of the main boom body. The beneficial effect of the present invention is that reinforcing rib plates are provided on both sides of the main boom body, and the reinforcing rib plates are connected to the upper cylinder hinge seat, the lower cylinder hinge seat and the swivel arm hinge hole, which can enhance the bearing capacity of the main boom body while also strengthening the supporting structure of the upper cylinder and the lower cylinder, thereby providing greater supporting force for the main boom.

Description

Technical Field

[0001] The invention relates to an engineering drill accessory, in particular to an engineering drill boom structure. Background Art

[0002] At present, engineering drills, rock drills and other engineering drills are widely used in earthwork excavation and blasting projects such as mining, hydropower, and transportation. With the development of engineering scale and technology, new requirements are put forward for engineering drills. The beam on which the drill bit is installed needs to pitch and swing at a larger angle to meet the needs of various working conditions. The existing patent number: 201520084117.2 discloses a large-angle pitch and swing engineering drill. The boom of the engineering drill is spliced ​​with metal plates, so its bearing capacity is weak during work. After long-term use, the boom is prone to bending and deformation, and even fracture in severe cases. Therefore, it is necessary to make further improvements to it. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an engineering drilling rig boom structure with simple structure, strong bearing capacity, and durability.

[0004] The object of the present invention is achieved in the following way: a large arm structure of an engineering drilling rig, characterized in that: it includes an open groove-shaped main arm body formed by integrally bending a plate, the open groove surface of the main arm body is covered with an upper sealing plate, the main arm body and the upper sealing plate are welded and fixed as a whole to form a hollow rectangular box, and reinforcing rib plates are welded and fixed on both sides of the main arm body. The reinforcing rib plates are T-shaped, and their heads protrude from the upper and lower ends of the main arm body, and an upper cylinder hinge seat is provided at the upper end of their heads, and a lower cylinder hinge seat is provided at the lower end, and an outer swivel arm hinge seat is provided at the tail of the reinforcing rib plate, and the outer swivel arm hinge seat is overlapped with the inner swivel arm hinge seat at the tail end of the main arm body; the top of the main arm body is provided with a connecting seat hinge hole and a main arm hinge hole, and a reinforcing ear plate is welded between the connecting seat hinge hole and the main arm hinge hole.

[0005] The head of the reinforcing rib plate is in a rhombus shape, and a first circle of welding holes is arranged in the middle thereof, and the first circle of welding holes is welded and fixed to the main arm body.

[0006] The first circle of welding holes is rhombus-shaped and is a through hole arranged on the reinforcing rib plate.

[0007] A plurality of reinforcing plates are transversely arranged in the opening groove of the main arm body, and the two side surfaces and the bottom surface of the reinforcing plates are welded and fixed to the main arm body.

[0008] An upper cylinder hinge seat reinforcement plate is arranged between the reinforcement rib plate and the upper sealing plate, and the upper cylinder hinge seat reinforcement plate is welded and fixed to the reinforcement rib plate and the upper sealing plate.

[0009] The reinforcing ear plate is L-shaped, the head and middle parts of which are connected to the hinge hole of the connecting seat and the hinge hole of the main arm, and the tail part of which is welded and fixed to the main arm body.

[0010] The tail of the reinforcing ear plate is provided with a second circle of welding holes for welding and fixing to the main arm body.

[0011] The second circle welding holes are waist-shaped holes, which are through holes arranged on the reinforcing ear plate.

[0012] The beneficial effects of the present invention are: 1. Simple structure, low production cost and improved market competitiveness; 2. Reinforcing rib plates are arranged on both sides of the main arm body, and the reinforcing rib plates are connected to the upper cylinder hinge seat, the lower cylinder hinge seat and the swing arm hinge hole, which can enhance the bearing capacity of the main arm body while also strengthening the supporting structure of the upper cylinder and the lower cylinder, thereby providing greater supporting force for the main arm; 3. Ring welding holes are arranged between the reinforcing rib plates and the reinforcing ear plates and the main arm body, and the ring welding holes can increase the welding area between the main arm body, making the connection between the two more firm and stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a state effect diagram used in the present invention.

[0014] Figure 2 This is the overall assembly effect diagram of the big arm structure in the present invention.

[0015] Figure 3 , 4 , 5 are structural assembly drawings of the present invention. DETAILED DESCRIPTION

[0016] The present invention is further described in detail below in conjunction with the accompanying drawings. A construction drilling rig boom structure, characterized in that: it includes an open groove-shaped main boom body 1 formed by integral bending of a plate, the surface of the open groove 2 of the main boom body 1 is covered with an upper sealing plate 3, the main boom body 1 and the upper sealing plate 3 are welded and fixed as a whole to form a hollow rectangular box, and reinforcing ribs 4 are welded and fixed on both sides of the main boom body 1, the reinforcing ribs 4 are T-shaped, and its head protrudes from the upper and lower ends of the main boom body 1, and an upper cylinder hinge seat 41 is provided at the upper end of its head, and a lower cylinder hinge seat 42 is provided at the lower end, and an outer swivel arm hinge seat 43 is provided at the tail end of the reinforcing ribs 4, and the outer swivel arm hinge seat 43 is arranged to overlap with the inner swivel arm hinge seat 11 at the tail end of the main boom body 1; the top end of the main boom body 1 is provided with a connecting seat hinge hole 12 and a main arm hinge hole 13, and a reinforcing ear plate 5 is welded between the connecting seat hinge hole 12 and the main arm hinge hole 13.

[0017] As described above, the head of the reinforcing rib plate 4 is in a rhombus shape, and a first circle of welding holes 44 is provided in the middle thereof. The first circle of welding holes 44 is welded and fixed to the main arm body 1 .

[0018] The first circle welding holes 44 are rhombus-shaped and are through holes provided on the reinforcing rib plate 4 .

[0019] A plurality of reinforcing plates 21 are transversely arranged in the opening groove 2 of the main arm body 1 , and the two side surfaces and the bottom surface of the reinforcing plates 21 are welded and fixed to the main arm body 1 .

[0020] An upper cylinder hinge seat reinforcement plate 31 is arranged between the reinforcement rib plate 4 and the upper sealing plate 3 , and the upper cylinder hinge seat reinforcement plate 31 is welded and fixed to the reinforcement rib plate 4 and the upper sealing plate 3 .

[0021] The reinforcing ear plate 5 is L-shaped, with its head 51 and middle part 52 connected to the connection seat hinge hole 12 and the main arm hinge hole 13, and its tail 53 fixed to the main arm body 1 by welding.

[0022] The tail portion 53 of the reinforcing ear plate 5 is provided with a second circle welding hole 54 for welding and fixing to the main arm body 1 .

[0023] The second ring welding hole 54 is a waist-shaped hole, which is a through hole arranged on the reinforcing ear plate 5 .

[0024] Working principle: In this case, the main arm body is formed by bending a plate into an open groove shape, and the surface of the open groove 2 of the main arm body 1 is covered with an upper sealing plate 3, and the main arm body 1 and the upper sealing plate 3 are welded and fixed as a whole. Among them, in order to increase the supporting force inside the main arm body, in this case, a number of reinforcing plates 21 are horizontally arranged in the open groove 2 of the main arm body 1, and the two side surfaces and bottom surfaces of the reinforcing plates 21 are welded and fixed to the main arm body 1. The reinforcing plates can play a supporting role inside the main arm body, preventing the main arm body from sinking inward and bending and deforming during use.

[0025] Further: reinforcing rib plates 4 are welded and fixed on both sides of the main arm body. The reinforcing rib plates 4 are T-shaped, and their heads protrude from the upper and lower ends of the main arm body 1, and upper cylinder hinge seats 41 are provided at the upper and lower ends of their heads, and lower cylinder hinge seats 42 are provided at their lower ends. An outer swivel arm hinge seat 43 is provided at the tail of the reinforcing rib plate 4, and the outer swivel arm hinge seat 43 overlaps with the inner swivel arm hinge seat 11 at the tail end of the main arm body 1; when the reinforcing rib plate is welded and fixed to the main arm body, the reinforcing rib plate serves to connect the upper cylinder hinge seat 41, the lower cylinder hinge seat 42 and the swivel arm hinge seat 11. In actual use, the main arm body and the reinforcing rib plate serve to bear force synchronously and support each other. Therefore, compared with the traditional large arm, the structure in this case has stronger supporting force and impact resistance, which is conducive to ensuring the long-term stable operation of the equipment.

[0026] Furthermore: The top of the main arm body in this case is provided with a connection seat hinge hole and a main arm hinge hole, and a reinforcing ear plate is welded between the connection seat hinge hole and the main arm hinge hole. Among them, the reinforcing ear plate is L-shaped, and its head and middle part are connected to the connection seat hinge hole and the main arm hinge hole, and its tail is welded and fixed to the main arm body. The unique reinforcing ear plate structural design enables it to be connected to the connection seat hinge hole and the main arm hinge hole, and plays a supporting role for the above two hinge holes. At the same time, the tail of the reinforcing ear plate extends outward and is welded and fixed to the main arm body, so that it plays a role in enhancing the connection strength between the main arm body and the connection seat hinge hole and the main arm hinge hole, ensuring the connection strength between the main arm body and the drilling rig, so it can be widely promoted and used.

[0027] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A big arm structure of an engineering drilling rig, characterized in that: The invention comprises an open groove-shaped main arm body (1) formed by integrally bending a plate, the surface of the open groove (2) of the main arm body (1) is covered with an upper sealing plate (3), the main arm body (1) and the upper sealing plate (3) are welded and fixed as a whole to form a hollow rectangular box body, and reinforcing rib plates (4) are welded and fixed on both sides of the main arm body (1), the reinforcing rib plates (4) are in a T shape, the head of which protrudes from the upper and lower ends of the main arm body (1), and an upper cylinder hinge seat (4) is provided at the upper end of the head 41), a lower cylinder hinge seat (42) is provided at its lower end, an outer swing arm hinge seat (43) is provided at the tail of the reinforcing rib plate (4), and the outer swing arm hinge seat (43) is arranged to overlap with the inner swing arm hinge seat (11) at the tail end of the main arm body (1); a connecting seat hinge hole (12) and a main arm hinge hole (13) are provided at the top end of the main arm body (1), and a reinforcing ear plate (5) is welded between the connecting seat hinge hole (12) and the main arm hinge hole (13); An upper cylinder hinge seat reinforcement plate (31) is provided between the reinforcement rib plate (4) and the upper sealing plate (3), and the upper cylinder hinge seat reinforcement plate (31) is welded and fixed to the reinforcement rib plate (4) and the upper sealing plate (3); The reinforcing ear plate (5) is L-shaped, with its head (51) and middle part (52) connected to the connecting seat hinge hole (12) and the main arm hinge hole (13), and its tail (53) being welded and fixed to the main arm body (1).

2. The engineering drilling rig boom structure according to claim 1, characterized in that: The head of the reinforcing rib plate (4) is in a rhombus shape, and a first circle of welding holes (44) is provided in the middle thereof. The first circle of welding holes (44) is welded and fixed to the main arm body (1).

3. The engineering drilling rig boom structure according to claim 2, characterized in that: The first circle of welding holes (44) is rhombus-shaped and is a through hole provided on the reinforcing rib plate (4).

4. The engineering drilling rig boom structure according to claim 1, characterized in that: A plurality of reinforcing plates (21) are transversely arranged in the opening groove (2) of the main arm body (1), and the two side surfaces and the bottom surface of the reinforcing plates (21) are welded and fixed to the main arm body (1).

5. The engineering drilling rig boom structure according to claim 1, characterized in that: The tail portion (53) of the reinforcing ear plate (5) is provided with a second circle of welding holes (54) for being welded and fixed to the main arm body (1).

6. The engineering drilling rig boom structure according to claim 5, characterized in that: The second circle welding hole (54) is a waist-shaped hole, which is a through hole provided on the reinforcing ear plate (5).

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