Vehicle body leveling mechanism of heavy down-the-hole drill

Abstract

The vehicle body leveling mechanism of the heavy down-the-hole drill comprises a drill chassis and a track frame, installation frames are welded to the left side and the right side of the drill chassis respectively, leveling oil cylinder assemblies are connected to the installation frames in a rotating mode, the lower portions of the leveling oil cylinder assemblies are connected to the track frame in a rotating mode, and the number of the leveling oil cylinder assemblies is two. According to the large-scale down-the-hole drill, the gravity center position of the large-scale down-the-hole drill is adjusted by synchronously controlling the oil cylinders to stretch out and draw back through the leveling oil cylinders and the electromagnetic valve assemblies, leveling is achieved, and the large-scale down-the-hole drill is suitable for large-angle climbing operation by adjusting the gravity center position of the large-scale down-the-hole drill.

Description

Technical Field

[0001] The utility model belongs to the technical field of heavy-duty down-the-hole drills, and in particular relates to a body leveling mechanism of a heavy-duty down-the-hole drill. Background Art

[0002] With the continuous integration and expansion of mines, the market demand for equipment with large blasting diameters is increasing. Large-diameter down-the-hole drills mean greater overall machine quality.

[0003] For example, Chinese Utility Model Publication No. CN212003079U discloses a stable and reliable mining drill rig, comprising a drill dust collector, a dust hood, and a water tank. The drill dust collector is fixedly connected to the propulsion beam of the drill rig, the dust hood is fixedly connected to the propulsion beam, and the water tank is installed on one side of the drill rig's drive cab.

[0004] Although the above patent can achieve dust removal, it has been found in actual use that it cannot perform large-angle climbing operations. During the climbing process, the down-the-hole drill needs to be leveled to change the center of gravity to adapt to the current climbing work. Utility Model Content

[0005] The utility model aims to provide a body leveling mechanism for a heavy-duty down-the-hole drill, so as to solve the technical defect that the existing heavy-duty down-the-hole drill has no leveling mechanism and cannot perform large-angle climbing operations.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a body leveling mechanism of a heavy-duty down-the-hole drill rig, comprising a drill rig chassis and a crawler frame, mounting frames are welded to the left and right sides of the drill rig chassis respectively, a leveling cylinder assembly is rotatably connected to the mounting frame, the lower part of the leveling cylinder assembly is rotatably connected to the crawler frame, and two leveling cylinder assemblies are provided.

[0007] As a further solution of the present invention, the leveling cylinder assembly includes a cylinder, an upper portion of the cylinder is fixedly connected to a connecting plate, and a through hole is formed on the connecting plate.

[0008] As a further preferred solution of the present invention, the connecting plate is connected to the mounting bracket via a first leveling pin.

[0009] As a preferred solution of the present invention, a leveling locking piece is connected to the mounting frame by screws.

[0010] As a further preferred embodiment of the present invention, a connecting ring is fixedly connected to the lower end of the telescopic rod of the oil cylinder.

[0011] As a further preferred solution of the present invention, a leveling cylinder seat is fixedly connected to the crawler frame, and the leveling cylinder seat is connected to the connecting ring through a second leveling pin.

[0012] As a preferred solution of the present invention, it further comprises a leveling solenoid valve assembly, which comprises a left leveling solenoid valve and a right leveling solenoid valve.

[0013] As a further preferred embodiment of the present invention, the left leveling solenoid valve is electrically connected to the left leveling cylinder assembly, and the right leveling solenoid valve is electrically connected to the right leveling cylinder assembly.

[0014] Compared with the prior art, the body leveling mechanism of a heavy-duty down-the-hole drill provided by the present invention has the following beneficial effects:

[0015] 1. Add a set of oil cylinders between the drilling rig chassis and the left and right crawler frames. The center of gravity of the large down-the-hole drilling rig is adjusted by synchronously controlling the extension and contraction of the oil cylinders through the leveling cylinder and the solenoid valve assembly to achieve leveling.

[0016] 2. By adjusting the center of gravity of the large down-the-hole drill, it can adapt to large-angle climbing operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only examples of the embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the upper installation structure of the leveling cylinder assembly according to an embodiment of the present utility model;

[0020] Figure 3 This is a schematic diagram of the lower installation structure of the leveling cylinder assembly according to an embodiment of the present utility model;

[0021] Figure 4 This is a schematic structural diagram of a leveling solenoid valve assembly according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic structural diagram of the working principle of an embodiment of the present utility model.

[0023] Reference numerals:

[0024] 1. Track frame; 2. Leveling cylinder assembly; 21. Cylinder; 22. Telescopic rod; 23. Connecting ring; 24. Connecting plate; 3. Mounting frame; 4. First leveling pin; 5. Leveling cylinder seat; 6. Second leveling pin; 7. Drilling rig underframe; 8. Leveling solenoid valve assembly; 9. Leveling lock plate; Y111, left leveling solenoid valve; Y112, right leveling solenoid valve. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clearly understood, the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0026] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying 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 a limitation on the embodiments of the present invention.

[0027] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0028] See attached Figure 1-4 As shown, an embodiment of the utility model is a body leveling mechanism of a heavy-duty down-the-hole drill, comprising a drill rig chassis 7 and a crawler frame 1, a mounting frame 3 is welded to the left and right sides of the drill rig chassis 7, a leveling cylinder assembly 2 is rotatably connected to the mounting frame 3, the lower part of the leveling cylinder assembly 2 is rotatably connected to the crawler frame 1, and two leveling cylinder assemblies 2 are provided.

[0029] See attached Figure 2-3 As shown, the leveling cylinder assembly 2 includes a cylinder 21 , and a connecting plate 24 is fixedly connected to the upper portion of the cylinder 21 . A through hole is formed on the connecting plate 24 , and the through hole on the connecting plate 24 is used for sleeve connection with the first leveling pin 4 .

[0030] The connecting plate 24 is connected to the mounting bracket 3 via the first leveling pin 4 .

[0031] A leveling locking piece 9 is connected to the mounting frame 3 by screws, and the leveling locking piece 9 plays a role in protecting and shielding the end surface of the first leveling pin 4.

[0032] The lower end of the telescopic rod 22 of the oil cylinder 21 is fixedly connected with a connecting ring 23 , and the connecting ring 23 is used to be sleeved on the second leveling pin 6 .

[0033] A leveling cylinder seat 5 is fixedly connected to the crawler frame 1 , and the leveling cylinder seat 5 is connected to the connecting ring 23 via a second leveling pin 6 .

[0034] The body leveling mechanism of a heavy-duty down-the-hole drill according to an embodiment of the present invention further includes a leveling solenoid valve assembly 8 , which includes a left leveling solenoid valve Y111 and a right leveling solenoid valve Y112 , which are used to level the left and right crawler frames 1 , respectively.

[0035] The left leveling solenoid valve Y111 is electrically connected to the leveling cylinder assembly 2 on the left side, and the right leveling solenoid valve Y112 is electrically connected to the leveling cylinder assembly 2 on the right side.

[0036] See attached Figure 5 As shown, when a heavy-duty vehicle is climbing a slope, the left and right leveling solenoid valves Y111 and Y112 are closed, oil flows into TDL2 / TDR2 and out of TDR1 / TDR2, extending the telescopic rod 22 of cylinder 21. After the vehicle reaches the proper center of gravity, the left and right leveling solenoid valves Y111 and Y112 are disconnected, and leveling cylinder 21 maintains its position.

[0037] In the embodiment of the present invention, a set of oil cylinders 21 is added between the drilling rig chassis 7 and the left and right crawler frames 1. The center of gravity position of the large down-the-hole drilling rig is adjusted to adapt to large-angle climbing operations by synchronously controlling the extension and contraction of the set of oil cylinders 21 through the leveling oil cylinder 21 and the solenoid valve assembly 8.

[0038] This embodiment of the utility model consists of three main parts: a leveling cylinder base 5 fixed to the crawler frame 1, a leveling cylinder telescopic rod 22 connected to the pin of the leveling cylinder base 5, and a leveling cylinder 21 connected to the pin of the mounting frame 3. The leveling mechanism controls the movement of the cylinder 21 via a leveling solenoid valve, thereby changing the center of gravity of the drilling rig to achieve climbing operation.

[0039] The leveling mechanism of the embodiment of the utility model has a large bearing capacity, is reliable and stable, and has a low maintenance cost.

[0040] The above shows and describes the basic principles of the present invention. The above is only a preferred embodiment of the present invention and is not intended to limit the present invention. The above embodiments and descriptions in the specification are only to illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent substitutions and improvements made within the spirit and scope of the present invention should be included in the scope of protection of the present invention.

Claims

1. A body leveling mechanism for a heavy-duty down-the-hole drill, characterized by: It comprises a drilling rig chassis (7) and a crawler frame (1), wherein mounting frames (3) are respectively welded to the left and right sides of the drilling rig chassis (7), a leveling oil cylinder assembly (2) is rotatably connected to the mounting frame (3), the lower part of the leveling oil cylinder assembly (2) is rotatably connected to the crawler frame (1), and the number of the leveling oil cylinder assemblies (2) is set to two; The leveling oil cylinder assembly (2) includes an oil cylinder (21), the upper portion of the oil cylinder (21) is fixedly connected to a connecting plate (24), a through hole is provided on the connecting plate (24), the connecting plate (24) is connected to the mounting frame (3) via a first leveling pin (4), a leveling lock plate (9) is connected to the mounting frame (3) via screws, the lower end of the telescopic rod (22) of the oil cylinder (21) is fixedly connected to a connecting ring (23), the crawler frame (1) is fixedly connected to a leveling oil cylinder seat (5), and the leveling oil cylinder seat (5) is connected to the connecting ring (23) via a second leveling pin (6); It also includes a leveling solenoid valve assembly (8), the leveling solenoid valve assembly (8) including a left leveling solenoid valve (Y111) and a right leveling solenoid valve (Y112), the left leveling solenoid valve (Y111) being electrically connected to the leveling oil cylinder assembly (2) on the left side, and the right leveling solenoid valve (Y112) being electrically connected to the leveling oil cylinder assembly (2) on the right side.

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