A kind of corridor construction drilling rig

Abstract

The present invention relates to a corridor construction drilling rig, comprising a chassis, a drilling assembly is arranged in front of the chassis, and a control console is arranged in the rear; the drilling assembly comprises a variable amplitude, a drill mast and a power head assembly; the variable amplitude assembly comprises a lifting arm, the rear end of the lifting arm is hinged to a base frame on the chassis, a direction-changing head is arranged at the front end, a rotating disk with a disk facing forward is arranged on the direction-changing head, the disk surface is rotatable, the direction-changing head is hinged to the front end of the lifting arm to drive the rotating disk to change the disk surface direction when rotating along its hinged position; a reversing member is detachably connected on the disk surface of the rotating disk, and the reversing member comprises a mounting plate perpendicular to the disk surface of the rotating disk; the drill mast assembly comprises two parallel guide rails, the power head assembly comprises a guide rail groove adapted to the two guide rails and can be slidably connected to the two guide rails; the drill mast assembly is detachably connected to the mounting plate, the plane formed by the two guide rails is perpendicular to the disk surface of the rotating disk, and the length direction of the two guide rails is parallel to the disk surface of the rotating disk. When the drilling rig is circumferentially drilling, the two guide rails are subjected to more balanced forces and are easy to observe.

Description

Technical Field

[0001] The invention belongs to the technical field of soil or rock drilling equipment, and in particular relates to a gallery construction drilling rig. Background Art

[0002] When drilling in corridors and tunnels, multi-directional drilling construction is usually required. Due to space limitations, it is not convenient to turn around or change direction after the drilling rig enters the road, so a special construction drilling rig is required to perform multi-directional drilling operations. The drilling rig should at least be able to achieve forward and circumferential drilling operations, that is, the power head can drill forward and drill on the wall of the corridor. There are similar devices in the prior art that can achieve the above functions, such as CN209469381U, CN209568974U, CN304858067S, etc., but there are problems such as imperfect functions or overly complex structures.

[0003] The applicant has developed and tested a corridor construction drilling rig, as shown in the attached Figure 1 As shown, it includes a chassis 1, on which a drilling assembly is provided, and at the rear of the drilling assembly is provided a control console assembly 3; the drilling assembly includes a variable amplitude assembly, a drill mast assembly 22 and a power head assembly 23; the variable amplitude assembly includes a lifting arm 211, the rear end of the lifting arm 211 is hinged to a base frame fixed on the chassis 1 and the lifting arm 211 is driven by a first oil cylinder, and the front end of the lifting arm 211 is hinged with a changing head 213, and the changing head 213 is provided with a rotating disk 214 with a disk facing upward, and the disk of the rotating disk 214 is rotatable, and the changing head 213 is driven by a second oil cylinder connected above the lifting arm 211. When the second oil cylinder is extended, the changing head 213 rotates along its hinged position and drives the rotating disk 214 to make its disk face forward, see the attached Figure 2 The drill mast assembly 22 includes two parallel rows of guide rails, and the power head assembly 23 includes two guide rail grooves adapted to the two rows of guide rails and can be slidably connected to the two rows of guide rails through the two guide rail grooves to achieve drilling action; the drill mast assembly 22 is connected and installed on the surface of the rotary disk 214 so as to rotate with it, and the plane formed by its two rows of guide rails is parallel to the surface of the rotary disk 214. When the surface of the rotary disk 214 faces upward, the rotary disk 214 drives it to rotate to an appropriate position, and forward drilling operation can be achieved. When the surface of the rotary disk 214 faces forward, the drill mast assembly 22 rotates with the surface of the rotary disk 214, and circumferential drilling operation can be achieved.

[0004] However, two prominent problems were found during the circumferential drilling operation. First, the power head was facing forward, while the console assembly 3 was located at the rear, making it difficult for the operator to visually observe the drilling process and the effect, and basically impossible to observe; second, during non-vertical drilling operations, especially when the rotary disk 214 rotates and drives the drill mast assembly 22 to a horizontal state, during horizontal drilling operations, please refer to the attached Figure 3 The wear of one side of the guide rail is particularly serious (when the two guide rails are located between the two guide rail grooves of the power head assembly 23, the upper guide rail is seriously worn, and when the two guide rail grooves of the power head assembly 23 are located between the two guide rails, the lower guide rail is seriously worn). The sliding of the power head assembly 23 is not flexible, and even wedging occurs. Further improvement is needed to improve the functional structure design. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a corridor construction drilling rig to avoid the problems of inconvenient observation during drilling operations and severe wear of the guide rails, thereby achieving an overall simple structure and a more perfect functional structure design.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A corridor construction drilling rig comprises a chassis, a drilling assembly is arranged on the chassis, and a control console assembly is arranged at the rear of the drilling assembly; the drilling assembly comprises a variable amplitude assembly, a drill mast assembly and a power head assembly; the variable amplitude assembly comprises a lifting arm, the rear end of the lifting arm is hinged to a base frame fixed on the chassis and the lifting arm is driven by a first oil cylinder, a direction-changing head is arranged at the front end of the lifting arm, a rotating disk with a disk facing forward is arranged on the direction-changing head, and the disk surface of the rotating disk is rotatable, and the direction-changing head is hinged to the front end of the lifting arm so that the rotating disk can be driven to change its position when the direction-changing head rotates along its hinged position The disk surface is facing, and the changing head is driven by a second oil cylinder connected to the lifting arm; a reversing member is detachably connected to the disk surface of the turntable, and the reversing member includes a mounting plate perpendicular to the disk surface of the turntable; the drill mast assembly includes two parallel rows of guide rails, and the power head assembly includes two guide rail grooves adapted to the two rows of guide rails and can be slidably connected to the two rows of guide rails through the two guide rail grooves to realize the drilling action; the drill mast assembly is detachably connected to the mounting plate, and the plane formed by the two rows of guide rails is also perpendicular to the disk surface of the turntable and the length direction of the two rows of guide rails is parallel to the disk surface of the turntable.

[0008] To further improve the above technical solution, the mounting plate is fixedly connected to the flange plate and is detachably connected to the surface of the turntable through the flange plate, and the flange plate is parallel to and in contact with the surface of the turntable.

[0009] Furthermore, a plurality of oblique reinforcing rib plates are provided between the mounting plate and the flange plate.

[0010] Furthermore, a plane formed by the two rows of guide rails is parallel to the mounting plate.

[0011] Furthermore, the first oil cylinder is located below the lifting arm, with a rear end hinged to the base frame and a front end hinged to a support ear protruding from the middle of the lower surface of the lifting arm.

[0012] Furthermore, the second oil cylinder is located above the lifting arm, the rear end is hinged to the raised support ear on the rear part of the upper surface of the lifting arm, the front end is hinged to the second hinge of the changing head, the hinge between the changing head and the front end of the lifting arm is the first hinge of the changing head, and the second hinge is located above the first hinge.

[0013] Furthermore, a crawler traveling assembly is connected below the chassis, and a hydraulic system serving as a power source for the entire machine is also provided on the chassis.

[0014] Furthermore, the hydraulic system is located between the drilling assembly and the control console assembly.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] In the drilling rig of the present invention, the amplitude changing assembly drives the lifting arm through the first oil cylinder to achieve the height adjustment of the front end thereof, and drives the direction-changing head through the second oil cylinder to achieve the adjustment of the disk surface of the rotary disk toward the top and the front, and in combination with the rotation of the disk surface of the rotary disk, drives the drill mast assembly and the power head assembly, and can achieve forward and circumferential drilling construction, with a simple structure and reliable mechanism operation; the additional reversing member connects the drill mast assembly to the disk surface of the rotary disk through the reversing member, and changes the spatial position relationship of the two rows of guide rails of the drill mast assembly relative to the disk surface of the rotary disk, so that during the circumferential drilling construction, no matter how the rotary disk rotates, the forces of the power head assembly carried by the two rows of guide rails through the guide rail grooves are always balanced, effectively reducing the wear of the guide rails, and the sliding movement of the power head assembly on the guide rails is also more flexible, which is conducive to reducing energy consumption; because the power head assembly is no longer facing the front, but facing the wall of the corridor, the operator at the control console assembly position can also at least observe the side of the power head assembly, which is convenient for visually observing the drilling process and the effect from the side angle, thereby improving the control degree of the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the original design of the drilling rig mentioned in the background technology (the dotted line power head part represents its stroke);

[0018] Figure 2 for Figure 1 The schematic diagram of the gallery construction drilling rig's turning head switching to a circular construction posture (vertical);

[0019] Figure 3 for Figure 2 The schematic diagram of the gallery construction drilling rig is in a horizontal drilling posture for circular construction;

[0020] Figure 4 It is a structural schematic diagram of a corridor construction drilling rig according to a specific embodiment;

[0021] Figure 5 for Figure 4 A partial enlarged view (mainly showing the drilling assembly);

[0022] Figure 6 for Figure 4 A schematic diagram of a corridor construction drilling rig with a turning head switched to a forward construction posture is shown;

[0023] Figure 7 It is a schematic diagram of disassembling the direction-changing head and related connecting parts in a specific embodiment;

[0024] Among them, chassis 1, base frame 11, drilling assembly 2, control console assembly 3, variable amplitude assembly 21, lifting arm 211, first cylinder 212, changing head 213, turntable 214, second cylinder 215, first hinge 216, second hinge 217, drill mast assembly 22, guide rail 221, power head assembly 23, guide rail groove 231, crawler walking assembly 4, hydraulic system 5, reversing member 6, mounting plate 61, flange plate 62, oblique reinforcing rib plate 63. DETAILED DESCRIPTION

[0025] The specific implementation modes of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] See also Figure 4-7 A corridor construction drilling rig according to a specific embodiment includes a chassis 1, a drilling assembly 2 is provided on the chassis 1, and a control console assembly 3 is provided at the rear of the drilling assembly 2; the drilling assembly 2 includes a variable amplitude assembly 21, a drill mast assembly 22 and a power head assembly 23; the variable amplitude assembly 21 includes a lifting arm 211, the rear end of the lifting arm 211 is hinged to a base frame 11 fixed on the chassis 1 and the lifting arm 211 is driven by a first oil cylinder 212, a direction-changing head 213 is provided at the front end of the lifting arm 211, a rotating disk 214 with a disk facing forward is provided on the direction-changing head 213, and the disk surface of the rotating disk 214 is rotatable, and the direction-changing head 213 is hinged to the front end of the lifting arm 211 so that the rotating disk 214 can be driven when the direction-changing head 213 rotates along its hinged position 4 changes the direction of its disk surface, and drives the change-head 213 through the second oil cylinder 215 connected to the lifting arm 211; the disk surface of the rotating disk 214 is detachably connected with a reversing member 6, and the reversing member 6 includes a mounting plate 61 perpendicular to the disk surface of the rotating disk 214; the drilling mast assembly 22 includes two parallel rows of guide rails 221, and the power head assembly 23 includes two guide rail grooves 231 adapted to the two rows of guide rails 221 and can be slidably connected to the two rows of guide rails 221 through the two guide rail grooves 231 to achieve drilling action; the drilling mast assembly 22 is detachably connected to the mounting plate 61, and the plane formed by the two rows of guide rails 221 is also perpendicular to the disk surface of the rotating disk 214, and the length direction of the two rows of guide rails 221 is parallel to the disk surface of the rotating disk 214.

[0027] In the drilling rig of the embodiment, the amplitude changing assembly 21 drives the lifting arm 211 through the first oil cylinder 212 to adjust the height of its front end, and drives the direction changing head 213 through the second oil cylinder 215 to adjust the surface of the rotating disk 214 to the top and the front, and in combination with the rotation of the surface of the rotating disk 214, drives the drill mast assembly 22 and the power head assembly 23, so as to realize forward and circumferential drilling construction, with a simple structure and reliable mechanism operation; the additional reversing member 6 connects the drill mast assembly 22 to the surface of the rotating disk 214 through the reversing member 6, changes the spatial position relationship between the two rows of guide rails 221 of the drill mast assembly 22 and the surface of the rotating disk 214, so that the plane formed by the two rows of guide rails 221 is also perpendicular to the rotating disk 214, of course, the length direction of the two rows of guide rails 221 is still parallel to the disk surface of the turntable 214, so that during the circumferential drilling construction of drilling holes toward the wall of the corridor, no matter how the turntable 214 rotates, the force of the two rows of guide rails 221 carrying the power head assembly 23 through the guide rail grooves 231 is always balanced, which effectively reduces the wear of the guide rails 221, and the sliding movement of the power head assembly 23 on the guide rails 221 is also more flexible, which is beneficial to reducing energy consumption; because the power head assembly is no longer facing the front, but facing the wall of the corridor, the operator at the control console assembly 3 can at least observe the side of the power head assembly, which is convenient for visually observing the drilling process and the effect from the side angle, thereby improving the operator's control.

[0028] The mounting plate 61 is fixedly connected to the flange plate 62 and is detachably connected to the surface of the rotating disk 214 through the flange plate 62 . The flange plate 62 is parallel to and in contact with the surface of the rotating disk 214 .

[0029] In this way, a specific structure and connection form of the reversing member 6 is provided, the flange plate 62 can be connected to the disk surface of the rotating disk 214 by bolts, and the mounting plate 61 and the flange plate 62 can be welded and fixedly connected to form a whole so as to facilitate assembly and disassembly.

[0030] A plurality of oblique reinforcing ribs 63 are provided between the mounting plate 61 and the flange plate 62 .

[0031] In this way, the structural strength of the reversing member 6 is improved, and the stability of the drilling process is guaranteed.

[0032] The plane formed by the two rows of guide rails 221 is parallel to the mounting plate 61 .

[0033] In this way, the structural design of the drill mast assembly 22 can be simplified, and two rows of parallel guide rails 221 can be provided on the surface of the turntable 214 by connecting to the ordinary profile of equal thickness; the direction of the two rows of guide rails 221 is consistent with the mounting plate 61, that is, the drilling direction is consistent with the mounting plate 61, which can facilitate the angle adjustment during circumferential construction without conversion.

[0034] The first oil cylinder 212 is located below the lifting arm 211, with its rear end hinged to the base frame 11, and its front end hinged to the lug protruding from the middle of the lower surface of the lifting arm 211. The second oil cylinder 215 is located above the lifting arm 211, with its rear end hinged to the lug protruding from the rear of the upper surface of the lifting arm 211, and its front end hinged to the second hinge 217 of the direction-changing head 213. The hinge between the direction-changing head 213 and the front end of the lifting arm 211 is the first hinge 216 of the direction-changing head 213, and the second hinge 217 is located above the first hinge 216. A crawler walking assembly 4 is connected below the chassis 1, and a hydraulic system 5 serving as the power source of the whole machine is also provided on the chassis 1. The hydraulic system 5 is located between the drilling assembly 2 and the control console assembly 3.

[0035] In this way, the width of the whole machine is effectively reduced, the volume is smaller, the applicability is improved, and it is suitable for more drilling operations in small-sized corridors or tunnels. In this embodiment, the direction-changing head 213 is a structural member with a cross-section similar to a right-angled triangle, the two acute angles determine the first hinge 216 and the second hinge 217, and the surface where the right angle side is located determines the installation orientation of the rotating disk 214.

[0036] It should be noted that in the above structure, when working forward, please refer to Figure 6 , and there is a problem that the two rows of guide rails 221 of the drill mast assembly 22 are one high and one low, so it is preferred to refer to Figure 7 , remove the detachably connected reversing member 6 and the drill mast assembly 22, and directly install the drill mast assembly 22 on the surface of the rotary disk 214, and return to Figure 1 The posture shown is also connected by bolts (in specific implementation, in order to facilitate the consistency of the bolt connection hole and the flange plate 62, a connecting plate can be added between the drill mast assembly 22 and the rotary plate 214), and the oil circuit is connected through a quick-connect connector, and then the forward drilling operation is carried out. This will not increase too much loading and unloading operations and affect the construction efficiency, because in the actual production operation process, the forward and circumferential drilling operations are usually carried out at different stages, and the drilling operation of the same process (posture) will continue for a period of time. When the forward and circumferential postures are switched, the drilling rig is usually in the waiting operation period of exiting the corridor, and the assembly and disassembly and posture switching can be conveniently carried out, and then when the drilling operation is required, it can enter the corridor to carry out the drilling operation of the process required in the next stage, which does not affect the construction efficiency.

[0037] During implementation, if the posture switching operation caused by the above-mentioned problem is to be avoided, the second oil cylinder 215 can be located on the side of the lifting arm 211, on the left or right side, from the perspective of structural design, with the rear end hinged to the protruding ear at the rear of the corresponding side of the lifting arm 211, and the front end hinged to the second hinge 217 of the changing head 213. The hinge between the changing head 213 and the front end of the lifting arm 211 is the first hinge 216 of the changing head 213, and the rotation axis of the first hinge 216 and the second hinge 217 is vertical. Then, after the second oil cylinder 215 retracts and drives the changing head 213 to rotate, the drill mast assembly 22 is located on the side of the lifting arm 211. Combined with the rotation of the turntable 214, the mounting plate 61 can be horizontal, and the two rows of guide rails 221 of the drill mast assembly 22 are also horizontal. However, the drill mast assembly 22 is located on the side of the lifting arm 211, and the structural strength and rigidity of the relevant parts must also be designed to match. Figure 4 The structure shown can be slightly improved on the existing drilling rig by adding a reversing member 6.

[0038] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A corridor construction drilling rig, comprising a chassis, a drilling assembly is arranged on the chassis, and a control console assembly is arranged behind the drilling assembly; the drilling assembly comprises a variable amplitude assembly, a drill mast assembly and a power head assembly; characterized in that: The variable amplitude assembly includes a lifting arm, the rear end of the lifting arm is hinged to a base frame fixed on the chassis and the lifting arm is driven by a first oil cylinder, a direction-changing head is provided at the front end of the lifting arm, a rotating disk with a disk facing forward is provided on the direction-changing head, and the disk of the rotating disk is rotatable, the direction-changing head is hinged to the front end of the lifting arm so that the rotating disk can be driven to change the direction of its disk when the direction-changing head rotates along its hinged position, and the direction-changing head is driven by a second oil cylinder connected to the lifting arm; A reversing member is detachably connected to the surface of the turntable, and the reversing member includes a mounting plate perpendicular to the surface of the turntable; the drill mast assembly includes two rows of guide rails parallel to each other, and the power head assembly includes two guide rail grooves adapted to the two rows of guide rails and can be slidably connected to the two rows of guide rails through the two guide rail grooves to achieve drilling action; the drill mast assembly is detachably connected to the mounting plate, and the plane formed by the two rows of guide rails is also perpendicular to the surface of the turntable and the length direction of the two rows of guide rails is parallel to the surface of the turntable.

2. A corridor construction drilling rig according to claim 1, characterized in that: The mounting plate is fixedly connected to the flange plate and detachably connected to the disk surface of the turntable through the flange plate. The flange plate is parallel to and in contact with the disk surface of the turntable.

3. A corridor construction drilling rig according to claim 2, characterized in that: A plurality of oblique reinforcing rib plates are arranged between the mounting flat plate and the flange plate.

4. A corridor construction drilling rig according to claim 1, characterized in that: The plane formed by the two rows of guide rails is parallel to the installation plate.

5. A corridor construction drilling rig according to claim 1, characterized in that: The first oil cylinder is located below the lifting arm, with a rear end hinged to the base frame and a front end hinged to a support ear protruding from the middle of the lower surface of the lifting arm.

6. A corridor construction drilling rig according to claim 1, characterized in that: The second oil cylinder is located above the lifting arm, with the rear end hinged to the raised support ear on the rear part of the upper surface of the lifting arm, and the front end hinged to the second hinge of the changing head. The hinge between the changing head and the front end of the lifting arm is the first hinge of the changing head, and the second hinge is located above the first hinge.

7. A corridor construction drilling rig according to any one of claims 1 to 6, characterized in that: A crawler walking assembly is connected below the chassis, and a hydraulic system serving as a power source for the entire machine is also provided on the chassis.

8. A corridor construction drilling rig according to claim 7, characterized in that: The hydraulic system is located between the drilling assembly and the control console assembly.

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