Structure for adjusting large angle of inclination of crawler belt of drilling rig

Abstract

The application discloses a structure for adjusting the inclination angle of left and right caterpillar belts of a drilling rig, and relates to the technical field of drilling rigs. First and second adjusting oil cylinders are arranged on the supporting frames of the left and right caterpillar belts respectively, and the piston rods of the first and second adjusting oil cylinders arranged in the vertical direction are rotatably connected with the supporting frames of the left and right caterpillar belts respectively. When the piston rods of the first and second adjusting oil cylinders are extended outward or retracted inward, the supporting frames of the left and right caterpillar belts are lifted or lowered respectively to produce forward and backward inclination. One of the first and second adjusting oil cylinders is rotatably arranged between the drilling rig base. The application can adjust the inclination angle of the left and right caterpillar belts of the drilling rig respectively, and can keep the center of gravity of the drilling rig from being inclined beyond the process requirement during the walking or drilling construction process of the drilling rig, so that the safety hidden danger is eliminated and the safety performance is improved. In addition, the inclination angle of the left and right caterpillar belts of the drilling rig can reach more than 40 degrees, the walking on a larger steep slope road surface is adapted, and the adaptability of the drilling rig to the field environment is improved.

Description

Technical Field

[0001] This invention relates to the field of drilling equipment technology, and specifically to a structure that allows for large-angle adjustment of the tilt angle of the left and right tracks of a drilling rig to adapt to all terrains. Background Technology

[0002] Drilling rigs are mainly used for geological drilling. They use drilling equipment to obtain underground rock strata samples. The parameter analysis of the rock strata samples can provide data support for mineral evaluation, mineral resources, mineral distribution, and geological composition. They are also used to drill pile holes, anchor holes, etc.

[0003] For drilling rigs that use tracks for movement, such as the folding geological exploration drilling device disclosed in CN116291194B and the fully hydraulic power head core drilling rig for rock and soil treatment disclosed in CN112554792A, they have self-propelled capabilities and can move and drill normally on relatively flat ground using their tracks. However, during movement, if there is a certain slope or a slight difference in height between the left and right sides of the road, the drilling rig will tilt forward and backward or left and right with the slope or height difference. If the slope or height difference is within a small range, it will not cause significant adverse consequences. However, if the slope or height difference is large, it will first cause a significant shift in the center of gravity of the drilling rig, affecting movement or normal drilling operations, and may even pose a risk of overturning (because the center of gravity of the drilling rig is usually high), which is a significant safety hazard. Secondly, it will also cause the oil inside the drilling rig, such as hydraulic oil and diesel, to spill out with the tilt, resulting in waste and also a safety hazard. Summary of the Invention

[0004] In view of the shortcomings of the prior art, the technical problem to be solved by the present invention is: how to provide a structure for adjusting the tilt angle of the left and right tracks of a drilling rig at a large angle, so as to adjust the tilt angle of the left and right tracks of the drilling rig separately, and maintain the center of gravity of the drilling rig from tilting beyond the process requirements in steep slope sections with an incline of more than 30 degrees or in cases where there is a large difference in height between the left and right sides of the road, thereby eliminating safety hazards.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A structure for adjusting the tilt angle of the left and right tracks of a drilling rig at a large angle includes a drilling rig base, a left track, and a right track on the left and right sides of the drilling rig base. The structure is characterized by having a first adjusting cylinder and a second adjusting cylinder respectively mounted on the support frame of the left and right tracks. The piston rods of the vertically mounted first and second adjusting cylinders are rotatably connected to the support frame of the left or right track, respectively. When the piston rods of the first and / or second adjusting cylinders extend outward or retract inward, they can drive the support frames of the left and / or right tracks to rise and fall respectively, causing them to tilt forward and backward relative to the drilling rig base. At least one of the first and second adjusting cylinders is rotatably mounted between the cylinder and the drilling rig base, and tilting is generated by the rotation of the cylinder itself around the connection point with the drilling rig base.

[0006] This invention can adjust the tilt angle of the left and right tracks of the drilling rig separately, during drilling operations. During operation, the drilling rig's center of gravity can be kept from tilting beyond the process requirements, eliminating safety hazards and improving safety performance. In addition, the tilt angle of the tracks on both sides of the drilling rig can reach more than 40 degrees, which can adapt to walking on steep slopes and improve the drilling rig's ability to adapt to the field environment.

[0007] Furthermore, the first and second adjusting cylinders are respectively located on the inner side near the drilling rig base. This facilitates the overall arrangement of the first and second adjusting cylinders and simplifies the structure.

[0008] Furthermore, the first and second adjusting cylinders include cylinder bodies, with a square sleeve on the outside of the cylinder body, which is fixedly or rotatably connected to the drilling rig base; a square inner cylinder is engaged at the lower end of the square sleeve, and the piston rod of the first or second adjusting cylinder is connected to the square inner cylinder, pushing the square inner cylinder to move up and down inside the square sleeve; the lower end of the square inner cylinder is movably connected to the connection point of the left track or the right track support frame.

[0009] This invention employs a square sleeve and a square inner cylinder that are interlocked, which firstly enhances the strength and rigidity of the first and second adjusting cylinders, preventing the drilling rig from overturning under special circumstances; furthermore, the square sleeve and square inner cylinder, being square tubes, do not rotate during the extension and retraction process, thus preventing the cylinders from rotating.

[0010] Furthermore, the square sleeve and square inner cylinder are square tubes.

[0011] In summary, the beneficial effects of the present invention are as follows: 1. This invention can adjust the tilt angle of the left and right tracks of the drilling rig separately, so that the center of gravity of the drilling rig will not tilt beyond the process requirements during the drilling process, thus eliminating safety hazards and improving safety performance. 2. The tilt angle of the tracks on both sides of the drilling rig can reach more than 40 degrees, which can adapt to walking on steep slopes and improve the drilling ability to adapt to the field environment.

[0012] 3. The tilt angles of the tracks on the left and right sides of the drilling rig can be adjusted separately, making it easier to adjust the horizontal position during drilling operations, significantly shortening the operation time for adjusting the horizontal position, and improving work efficiency.

[0013] 4. During the movement of the drilling rig, the center of gravity of the rig remains basically vertical to prevent hydraulic oil, diesel oil, etc. from spilling out, thus avoiding waste and eliminating this safety hazard.

[0014] 5. The present invention uses a square sleeve and a square inner cylinder that are interlocked, which firstly enhances the strength and rigidity of the first and second adjusting cylinders, and can prevent the drilling rig from overturning under special circumstances; in addition, the square sleeve and square inner cylinder, which are square tubes, will not rotate during the extension and retraction process, thus preventing the cylinder from rotating. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the drilling rig of the present invention; Figure 2 This is a schematic diagram showing the left and right tracks in the first tilt state (at different horizontal heights); Figure 3 yes Figure 2 The main view; Figure 4 This is a schematic diagram of the drilling rig's left and right tracks in a second inclined state. Figure 5 This is a schematic diagram of the drilling rig's left and right tracks in a third tilted state.

[0016] 1—Drilling rig base, 2—Left track, 3—Right track, 4—First adjusting cylinder, 5—Second adjusting cylinder. Detailed Implementation

[0017] To make the purpose, technical solution, and advantages of the invention clearer, the invention will now be described in further detail with reference to the accompanying drawings.

[0018] The present invention provides a structure for adjusting the tilt angle of the left and right tracks of a drilling rig at a large angle, such as... Figure 1 , 2As shown in Figures 3, 4, and 5, the drilling rig includes a base 1 on which the main body of a conventional drilling rig is mounted, such as a support frame, hydraulic system, drilling mechanism, rotary power unit, mast or rotary clamping mechanism, and traveling mechanism, forming a fully functional drilling rig.

[0019] For drilling rigs with tracked walking mechanisms, a left and right tracked structure is usually set up, including a left track 2 and a right track 3 set on the left and right sides of the drilling rig base 1. The left track 2 and the right track 3 are respectively connected to the drilling rig hydraulic system through hydraulic pipelines, and rotate in a controlled state to move forward or backward. The structure of the left track 2 and the right track 3 and the control of their forward or backward movement are existing technologies and will not be further described here.

[0020] In this invention, a first adjusting cylinder 4 and a second adjusting cylinder 5 are provided on the drilling rig base 1, corresponding to the left track 2 and the right track 3. The piston rods of the first adjusting cylinder 4 and the second adjusting cylinder 5, which are arranged vertically, are rotatably connected to the support frames of the left track 2 and the right track 3, respectively. The first adjusting cylinder 4 and the second adjusting cylinder 5 on the same side are located on the inner side of the track on that side, that is, the side close to the drilling rig base 1. One or both of the first adjusting cylinder 4 and the second adjusting cylinder 5 are rotatably connected to the drilling rig base 1. The piston rods of the first adjusting cylinder 4 and the second adjusting cylinder 5 can be connected to the support frames of the left track 2 and the right track 3 using ball joints with a large rotation angle and more flexible rotation. When the piston rods of the first adjusting cylinder 4 and / or the second adjusting cylinder 5 extend outward or retract inward, they can drive the support frames of the left track 2 and / or the right track 3 to rise or fall respectively, thereby tilting (pitching) with the drilling rig base 1 and forming a large tilt angle.

[0021] As the piston rods of the first adjusting cylinder 4 and the second adjusting cylinder 5 extend outward or retract inward, the support frames of the left track 2 and the right track 3 rotate accordingly. The distance between these support frames and the vertical piston rods of the first adjusting cylinder 4 and the second adjusting cylinder 5 gradually changes, causing a shift in the horizontal distance between the lower end of the piston rod and the movable connection point of the left track 2 and the right track 3. This shifts the centerline of the piston rod, leading to jamming. In severe cases, the piston rods of the first adjusting cylinder 4 and the second adjusting cylinder 5 may become stuck in the piston cavity. Therefore, to enable the piston rods of the first adjusting cylinder 4 and the second adjusting cylinder 5 to adapt to the tilt of the left track 2 and the right track 3, this invention rotatably connects at least one of the first adjusting cylinder 4 and the second adjusting cylinder 5 to the drilling rig base 1. The rotation of this cylinder around its connection point with the drilling rig base 1 generates a corresponding tilt (tilt along the track length direction) to adapt to the tilt of the left track 2 and the right track 3, thus achieving the purpose of this invention.

[0022] like Figure 4 As shown, a specific embodiment of the structure of the first adjusting cylinder 4 and the second adjusting cylinder 5 of the present invention includes a cylinder body, a square sleeve 10 provided on the outside of the cylinder body, and a fixed or rotatable connection between the square sleeve 10 and the drilling rig base 1. A square inner cylinder 11 is engaged at the lower end of the square sleeve 10, and the square inner cylinder 11 can move up and down within the square sleeve 10. The piston rod of the first adjusting cylinder 4 or the second adjusting cylinder 5 is respectively connected to the square inner cylinder 11, pushing the square inner cylinder 11 to move up and down. The lower end of the square inner cylinder 11 is then movably connected to the connection point of the support frame of the left track 2 or the right track 3. The present invention employs a square sleeve 10 and a square inner cylinder 11 that are interlocked, which firstly enhances the strength and rigidity of the first adjusting cylinder 4 and the second adjusting cylinder 5, preventing the drilling rig from overturning under special circumstances; secondly, the square sleeve 10 and the square inner cylinder 11, which are in the shape of square tubes, do not rotate during the extension and retraction process, preventing the cylinders from rotating. During the extension and retraction of the piston rod, the first adjusting cylinder 4 and the second adjusting cylinder 5 drive the left track 2 or the right track 3 to tilt smoothly, and as important load-bearing components, they support the entire drilling rig.

[0023] The connection structure, control structure, and control method between the first adjusting cylinder 4 and the second adjusting cylinder 5 and the drilling rig hydraulic system, as well as the locking of the cylinders, can adopt existing technologies and are not considered as innovative points of this invention, and will not be further explained here.

[0024] This invention includes a first adjusting cylinder 4 and a second adjusting cylinder 5 on the left track 2 and right track 3, respectively. By controlling the piston rods of the first adjusting cylinder 4 or the second adjusting cylinder 5 to extend outward or retract inward, the left track 2 or the right track 3 is rotated, generating a forward and backward tilt, forming a large tilt angle. Tests have shown that this angle can reach a maximum of 45º. This allows the drilling rig to compensate for the height difference between the front and rear ends of the left track 2 or the right track 3 when traveling on steep slopes, ensuring that the drilling rig's center of gravity does not tilt beyond the required forward and backward tilt on steep slopes (e.g., ...). Figure 4 , 5 As shown in the diagram, the rig remains essentially perpendicular to the drilling rig base, eliminating safety hazards. Furthermore, when the drilling rig travels on sections of road with a significant height difference between the left and right sides, the height difference between the left and right tracks (e.g., track 2 or track 3) can be compensated by adjusting the relative height of the left track 2 or right track 3 to the horizontal plane. Figure 2 , 3As shown in the diagram, the angle of the drilling rig tilting to the left and right is significantly reduced, and the center of gravity of the drilling rig is kept to the left and right without tilting beyond the process requirements. It is basically kept perpendicular to the drilling rig base, which can eliminate safety hazards. In addition, during drilling, by adjusting the tilt angle of the left track 2 or the right track 3, it can adapt to uneven ground caused by tilting, potholes and other factors during construction, thus expanding the application range of the drilling rig.

[0025] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described with reference to preferred embodiments, those skilled in the art should understand that various changes in form and detail can be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A structure for adjusting the tilt angle of the left and right tracks of a drilling rig at a large angle, comprising a drilling rig base (1), a left track (2) and a right track (3) on the left and right sides of the drilling rig base (1); characterized in that, On the support frame of the left track (2) and the right track (3), a first adjusting cylinder (4) and a second adjusting cylinder (5) are respectively provided. The piston rods of the first adjusting cylinder (4) and the second adjusting cylinder (5) arranged vertically are rotatably connected to the support frame of the left track (2) or the right track (3). When the piston rods of the first adjusting cylinder (4) and / or the second adjusting cylinder (5) extend outward or retract inward, they can drive the support frames of the left track (2) and / or the right track (3) to rise and fall respectively, and respectively generate a front-to-back tilt with the drilling rig base (1). At least one of the first adjusting cylinder (4) and the second adjusting cylinder (5) is rotatably connected to the drilling rig base (1), and tilting is generated by the rotation of the cylinder itself around the connection point with the drilling rig base (1); The first adjusting cylinder (4) and the second adjusting cylinder (5) include a cylinder body, a square sleeve (10) is provided on the outside of the cylinder body, and the square sleeve (10) is fixedly or rotatably connected to the drilling rig base (1); a square inner cylinder (11) is snapped into the lower end of the square sleeve (10), the piston rod of the first adjusting cylinder (4) or the second adjusting cylinder (5) is connected to the square inner cylinder (11), and pushes the square inner cylinder (11) to move up and down inside the square sleeve (10); the lower end of the square inner cylinder (11) is movably connected to the connection point of the support frame of the left track (2) or the right track (3).

2. The structure for adjusting the tilt angle of the left and right tracks of a drilling rig at a large angle according to claim 1, characterized in that, The first adjusting cylinder (4) and the second adjusting cylinder (5) are respectively located on the inner side near the drilling rig base (1).

3. The structure for adjusting the tilt angle of the left and right tracks of a drilling rig at a large angle according to claim 1 or 2, characterized in that, The square sleeve (10) and the square inner cylinder (11) are square tubes.

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