CN220469823U - Dual-drive pitching mechanism of airborne drilling machine - Google Patents
Dual-drive pitching mechanism of airborne drilling machine Download PDFInfo
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- CN220469823U CN220469823U CN202322280429.8U CN202322280429U CN220469823U CN 220469823 U CN220469823 U CN 220469823U CN 202322280429 U CN202322280429 U CN 202322280429U CN 220469823 U CN220469823 U CN 220469823U
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- 238000005553 drilling Methods 0.000 title claims abstract description 70
- 230000007246 mechanism Effects 0.000 title claims abstract description 24
- 230000009977 dual effect Effects 0.000 claims description 11
- 238000006073 displacement reaction Methods 0.000 claims description 7
- 239000011435 rock Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 230000005641 tunneling Effects 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000004873 anchoring Methods 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The utility model relates to the technical field of roadway mechanical equipment, in particular to a double-drive pitching mechanism of an airborne drilling machine, which comprises a base, a support piece, a drilling tool mounting platform, a pair of primary retractors and a pair of secondary retractors, wherein the base is provided with a first driving mechanism and a second driving mechanism: one end of the supporting piece is hinged to the top end of the base, and the other end of the supporting piece is hinged to the bottom end of the drilling tool mounting platform; one end of the secondary expansion joint is hinged with the drilling tool mounting platform, and the other end of the secondary expansion joint is hinged with the supporting piece; the paired secondary retractors are arranged in a mirror image mode by taking the supporting piece as the center; one end of the primary expansion joint is hinged to the bottom end of the base, and the other end of the primary expansion joint is hinged to the supporting piece; the paired primary retractors are arranged in a mirror image mode by taking the supporting piece as the center; the primary telescopic device and the secondary telescopic device can drive the drilling tool mounting platform to swing in the height direction of the roadway, and the heights of the two swinging can be overlapped. The whole occupation space of the double-drive pitching mechanism is smaller, and the adaptability to small-sized roadway operation is higher.
Description
Technical Field
The utility model relates to the technical field of roadway mechanical equipment, in particular to a double-drive pitching mechanism of an airborne drilling machine.
Background
The stability of the forming tunnel is closely related to the transportation of subsequent equipment and materials, the working environment of operators and the transportation of mineral aggregate out of the well. The stress state of the original rock is destroyed in the process of tunnel excavation, the stress of surrounding rock of the tunnel is redistributed, and the surrounding rock moves to the tunnel space; when the stress reaches the strength of the surrounding rock, the surrounding rock is damaged, and the tunnel is propped up, and the side is sliced, etc. along with the damage. Therefore, along with the continuous increase of the depth and the intensity of coal mining, the method has the advantages of reducing the stress of surrounding rock, transferring the high stress of the surrounding rock, homogenizing the stress of the surrounding rock, avoiding the excessive concentrated stress, and ensuring the stability and the safety of a roadway.
At present, most mines use a method of organically combining supporting, reinforcing and pressure relief, and cooperatively operate to control surrounding rock deformation. Based on the method, a batch of equipment with advanced drilling and advanced support, such as an advanced drilling machine, is designed in the coal mine equipment industry, and the equipment is widely applied at home and abroad, but due to the limitation of the swing angle of a drill bit, the roadway is difficult to drill in all directions, the pressure of the surrounding rock of the roadway cannot be effectively relieved, and the stability problem of the surrounding rock of the roadway still cannot be solved.
The existing airborne drilling machine is generally arranged above a large cutting arm of the tunneling and anchoring complete equipment or is arranged at the front part or the tail part of an anchor rod drill carriage, and is more limited by the size of the whole machine and the roadway space, and has lower adaptability to small roadway operation. The on-board drilling machine is generally only provided with one swing oil cylinder or a group of swing oil cylinders which are symmetrically arranged, the drilling range of the transfer unit in the height direction of the roadway is smaller due to the design of one swing oil cylinder, namely the swing angle of the swing oil cylinder driving the drilling tool is smaller, effective drilling of the roadway wall surface beyond the drilling range is difficult, subsequent pressure relief operation is carried out on drilling dead angles through manual work, and the construction efficiency is lower.
Disclosure of Invention
First, the technical problem to be solved
In view of the above-mentioned shortcomings and drawbacks of the prior art, the present utility model provides a dual-drive pitching mechanism of an airborne drilling machine, which solves the technical problem that the drilling range of the existing airborne drilling machine in the roadway height direction is smaller.
(II) technical scheme
In order to achieve the above purpose, the dual-drive pitching mechanism and the tunneling and anchoring complete equipment of the airborne drilling machine comprise a base, a supporting piece, a drilling tool mounting platform, a pair of primary retractors and a pair of secondary retractors:
one end of the supporting piece is hinged to the top end of the base, and the other end of the supporting piece is hinged to the bottom end of the drilling tool mounting platform;
one end of the secondary telescopic device is hinged with the drilling tool mounting platform, and the other end of the secondary telescopic device is hinged with the supporting piece; the paired secondary retractors are arranged in a mirror image mode by taking the supporting pieces as the centers;
one end of the primary expansion joint is hinged to the bottom end of the base, and the other end of the primary expansion joint is hinged to the supporting piece; the paired primary retractors are arranged in a mirror image mode by taking the supporting pieces as the center;
the primary telescopic device and the secondary telescopic device can drive the drilling tool mounting platform to swing in the height direction of a roadway, and the heights of the two swinging can be overlapped.
Optionally, the support member is provided with a first ear plate and a second ear plate;
the first ear plate is arranged at the bottom end of the supporting piece, and the primary telescopic device is hinged with the first ear plate;
the second lug plate is arranged at the side end of the supporting piece, and the secondary expansion device is hinged with the second lug plate.
Optionally, a first connection plate is connected between the pair of first ear plates, and a second connection plate is connected between the pair of second ear plates.
Optionally, a first hinge pin is arranged on the base;
the support member is rotatably connected with the first hinge pin shaft.
Optionally, a hinge block is arranged at the bottom end of the drilling tool mounting platform, and a second hinge pin shaft is arranged on the support piece;
the hinge block is rotatably connected with the second hinge pin shaft.
Optionally, displacement sensors are disposed on the primary telescopic device and the secondary telescopic device.
Optionally, the dual drive pitch mechanism further comprises a turntable;
the base set up in on the carousel, the carousel can drive the base rotates.
(III) beneficial effects
The beneficial effects of the utility model are as follows:
the primary telescopic device and the secondary telescopic device can drive the drilling tool mounting platform to swing in the height direction of the roadway, and the heights of the two swinging can be overlapped, so that the swinging range of the drilling tool mounting platform in the height direction of the roadway is increased, the pressure relief dead angle is reduced or eliminated, and the pressure relief and tunneling efficiency is greatly improved.
The paired secondary retractors are arranged in a mirror image mode by taking the supporting piece as a center, and the paired primary retractors are arranged in a mirror image mode by taking the supporting piece as a center. Mirror image arrangement is beneficial to improving the telescoping synchronism of the paired secondary retractors (or paired primary retractors), thereby improving the overall stability of the device.
One end of the supporting piece is hinged to the top end of the base, and the other end of the supporting piece is hinged to the bottom end of the drilling tool mounting platform. The drilling tool mounting platform, the supporting piece and the base are arranged from top to bottom in the height direction of the roadway, so that the occupied space is small; and one end of the primary expansion joint is hinged to the bottom end of the base, so that the secondary expansion joint can be arranged above the primary expansion joint in the roadway height direction, and the occupied space is small. Therefore, the whole occupied space of the double-drive pitching mechanism is smaller, and the adaptability to small roadway operation is higher.
Drawings
FIG. 1 is a schematic structural view of a dual drive pitch mechanism of an on-board rig of the present utility model;
fig. 2 is an exploded schematic view of the dual drive pitch mechanism of the on-board rig of the present utility model.
[ reference numerals description ]
1: a base; 11: a first hinge pin; 12: a third hinge point; 13: an oil cylinder seat; 14: a fourth hinge point;
2: a support; 21: a first ear plate; 211: a first hinge point; 22: a second ear plate; 221: a second hinge point; 23: the second hinge pin shaft; 24: a fifth hinge point;
3: a drilling tool mounting platform; 31: a hinge block;
4: a primary retractor;
5: a secondary expansion device;
7: a turntable.
Detailed Description
The utility model will be better explained by the following detailed description of the embodiments with reference to the drawings.
It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.
Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the present utility model, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; "coupled" may be mechanical or electrical; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
Referring to fig. 1, the present utility model provides a dual drive pitch mechanism of an on-board drilling machine, which includes a base 1, a support 2, a drilling tool mounting platform 3, a pair of primary retractors 4 and a pair of secondary retractors 5: one end of the support piece 2 is hinged to the top end of the base 1, and the other end of the support piece 2 is hinged to the bottom end of the drilling tool mounting platform 3; one end of the secondary expansion device 5 is hinged with the drilling tool mounting platform 3, and the other end is hinged with the support piece 2; the paired secondary retractors 5 are arranged in a mirror image manner with the supporting piece 2 as a center; one end of the primary expansion piece 4 is hinged to the bottom end of the base 1, and the other end of the primary expansion piece is hinged to the supporting piece 2; the paired primary retractors 4 are arranged in a mirror image manner with the supporting piece 2 as a center; wherein, primary expansion bend 4 and secondary expansion bend 5 all can drive drilling tool mounting platform 3 and swing in the direction of the height in tunnel, and the height of two swings can carry out the stack. The primary expansion device 4 and the secondary expansion device 5 can be hydraulic cylinders, air cylinders or electric push rods, and oil cylinders are selected in the embodiment. The drilling tool is arranged on the drilling tool mounting platform 3, and the drilling tool mounting platform 3 can swing synchronously with the drilling tool and can drive the drilling tool to rotate.
The primary telescopic device 4 and the secondary telescopic device 5 can drive the drilling tool mounting platform 3 to swing in the height direction of a roadway, and the heights of the two swings can be overlapped, so that the swing range of the drilling tool mounting platform 3 in the height direction of the roadway is increased, the pressure relief dead angle is reduced or eliminated, and the pressure relief and tunneling efficiency is greatly improved.
The paired secondary retractors 5 are mirror-image-disposed centering around the support 2, and the paired primary retractors 4 are mirror-image-disposed centering around the support 2. The mirror image arrangement is advantageous for improving the synchronicity of the telescoping of the paired secondary retractors 5 (or paired primary retractors 4), thereby improving the overall stability of the device.
One end of the support member 2 is hinged to the top end of the base 1, and the other end of the support member 2 is hinged to the bottom end of the drilling tool mounting platform 3. The drilling tool mounting platform 3, the supporting piece 2 and the base 1 are arranged from top to bottom in the roadway height direction, so that the occupied space is small; and one end of the primary expansion joint 4 is hinged to the bottom end of the base 1, so that the secondary expansion joint 5 can be arranged above the primary expansion joint 4 in the roadway height direction, and the occupied space is small. Therefore, the whole structure of the double-drive pitching mechanism occupies smaller space and has higher adaptability to small roadway operation.
As shown in fig. 2, the support 2 is provided with a first ear plate 21 and a second ear plate 22; the first ear plate 21 is arranged at the bottom end of the supporting piece 2, and the primary telescopic device 4 is hinged with the first ear plate 21 through a first hinging point 211; the second ear plate 22 is disposed at a side end of the support 2, and the secondary telescopic 5 is hinged to the second ear plate 22 through a second hinge point 221. In this embodiment, the first hinge point 211 and the second hinge point 221 are disposed on the same side of the support 2, and the third hinge point 12 of the support 2 and the base 1 is disposed on the other side of the support 2, so that when the secondary telescopic device 5 stretches and contracts, the first hinge point 211 can be used as a support point to drive the drilling tool mounting platform 3 to swing, so that the primary telescopic device 4 can support the secondary telescopic device 5, and stability of the drilling tool mounting platform 3 in the swinging process is improved.
Further, a first connection plate is connected between the pair of first ear plates 21, and a second connection plate is connected between the pair of second ear plates 22. The first connecting plate can be connected with the first lug plates 21 arranged on the left side and the right side of the supporting piece 2, so that the primary telescopic device 4 on any side can push the first connecting plate to swing, namely, the supporting piece 2 and the drilling tool mounting platform 3 can be stably pushed to swing, the synchronous error of the telescopic operation of the primary telescopic device 4 in pairs is greatly reduced, the running stability of equipment is improved, and the service life of the equipment is prolonged. The second connecting plate is the same and will not be described again.
Secondly, a first hinge pin 11 is arranged on the base 1; the support 2 is rotatably connected to a first hinge pin 11. In the present embodiment, the support 2 and the primary telescopic 4 are both hinged to the inner side of the base 1, and both side ends of the support 2 can abut against the base 1; meanwhile, the inner side of the base 1 is provided with a pair of oil cylinder seats 13, the primary telescopic device 4 is hinged between one oil cylinder seat 13 and the inner wall of the base 1 through a fourth hinging point 14, and the secondary telescopic device 5 is hinged between the other oil cylinder seat 13 and the inner wall of the base 1 through a third hinging point 12. The oil cylinder base 13 can effectively strengthen the structural strength of the base 1 and improve the stability of the transmission of the primary telescopic device 4 and the secondary telescopic device 5. Therefore, the acting forces of the support 2 and the primary telescopic 4 can be efficiently transmitted to the base 1, and the operation stability of the drilling tool in the pressure relief process is enhanced. In addition, in this embodiment, the cross section of the support member 2 is arranged in a right triangle, and the third hinge point 12 and the fourth hinge point 14 are arranged on opposite sides of the right angle of the triangle, so that the acting force of the device can be efficiently conducted to the right angle end of the support member 2, and finally conducted to the rigid structure fixedly connected with the base 1, thereby further enhancing the operation stability of the drilling tool in the pressure relief process.
In addition, the bottom end of the drilling tool mounting platform 3 is provided with a hinge block 31, and the support 2 is provided with a second hinge pin 23; the hinge block 31 is rotatably connected to the second hinge pin 23. Specifically, the hinge point of the support 2 and the drilling tool mounting platform 3 is a fifth hinge point 24, and a clearance groove is correspondingly formed on the support 2 to cooperate with the hinge block 31 to rotate around the fifth hinge point 24. The first hinge points 211, the second hinge points 221, the third hinge points 12 or the fifth hinge points 24 are connected through hinge pins or connecting plates, so that stability of the device in the running process is improved, and synchronization errors of a double-cylinder driving mode are reduced.
Further, displacement sensors are arranged on the primary telescopic device 4 and the secondary telescopic device 5, and the displacement sensors can be internally or externally arranged on the primary telescopic device 4 or the secondary telescopic device 5. The displacement sensor can monitor the telescopic travel of the primary telescopic device 4 or the secondary telescopic device 5 in real time so as to improve the telescopic precision of the primary telescopic device 4 or the secondary telescopic device 5 and further improve the drilling precision; meanwhile, based on the monitoring data of the displacement sensor and the monitoring data of the displacement sensor, the synchronization of the paired primary retractors 4 or the paired secondary retractors 5 can be improved through compensation adjustment of the rear end controller, and the construction safety is further improved.
Secondly, the double-drive pitching mechanism further comprises a turntable 7; the base 1 is arranged on the turntable 7, and the turntable 7 can drive the base 1 to rotate. The turntable 7 can rotate, so that the base 1 can be driven to rotate, and the drilling tool mounting platform 3 is driven to rotate; the bottom end of the turntable 7 can be provided with a rotary speed reducer, and the turntable 7 and the base 1 are driven to synchronously rotate by the rotary speed reducer. The rotary table 7 can correspondingly realize the rotation and the swing of the drilling tool mounting platform 3 by matching the primary telescopic device 4 and the secondary telescopic device 5, so that the drilling range is enlarged. In addition, the turntable 7 can drive the drilling tool mounting platform 3 to rotate so as to drill the left side wall part or the right side wall part of the roadway, and compared with the technical scheme that two drilling tools are arranged to drill the left side wall part and the right side wall part of the roadway respectively, the utility model adds the turntable, so that one drilling tool can finish the drilling requirements on the two side wall parts of the roadway, the occupied space is small, and the adaptability to small-sized roadway operation is higher.
It should be understood that the above description of the specific embodiments of the present utility model is only for illustrating the technical route and features of the present utility model, and is for enabling those skilled in the art to understand the present utility model and implement it accordingly, but the present utility model is not limited to the above-described specific embodiments. All changes or modifications that come within the scope of the appended claims are intended to be embraced therein.
Claims (7)
1. The double-drive pitching mechanism of the airborne drilling machine is characterized by comprising a base (1), a supporting piece (2), a drilling tool mounting platform (3), a pair of primary retractors (4) and a pair of secondary retractors (5):
one end of the supporting piece (2) is hinged to the top end of the base (1), and the other end of the supporting piece (2) is hinged to the bottom end of the drilling tool mounting platform (3);
one end of the secondary telescopic device (5) is hinged with the drilling tool mounting platform (3), and the other end of the secondary telescopic device is hinged with the supporting piece (2); the paired secondary retractors (5) are arranged in a mirror image mode by taking the supporting piece (2) as a center;
one end of the primary telescopic device (4) is hinged to the bottom end of the base (1), and the other end of the primary telescopic device is hinged to the supporting piece (2); the paired primary retractors (4) are arranged in a mirror image mode by taking the supporting piece (2) as a center;
the primary telescopic device (4) and the secondary telescopic device (5) can drive the drilling tool mounting platform (3) to swing in the height direction of a roadway, and the heights of the two swinging can be overlapped.
2. The dual drive pitch mechanism of an on-board rig according to claim 1, characterized in that the support (2) is provided with a first ear plate (21) and a second ear plate (22);
the first ear plate (21) is arranged at the bottom end of the supporting piece (2), and the primary telescopic device (4) is hinged with the first ear plate (21);
the second lug plate (22) is arranged at the side end of the supporting piece (2), and the secondary expansion device (5) is hinged with the second lug plate (22).
3. The dual drive pitch mechanism of an on-board drilling machine according to claim 2, wherein a first connection plate is connected between the pair of the first ear plates (21), and a second connection plate is connected between the pair of the second ear plates (22).
4. A dual drive pitch mechanism of an on-board drilling machine according to any of claims 1-3, characterized in that the base (1) is provided with a first articulation pin (11);
the support (2) is rotatably connected with the first hinge pin (11).
5. A dual drive pitch mechanism of an on-board drilling machine according to any of claims 1-3, characterized in that the bottom end of the tool mounting platform (3) is provided with a hinge block (31), and the support (2) is provided with a second hinge pin (23);
the hinge block (31) is rotatably connected with the second hinge pin shaft (23).
6. A dual drive pitch mechanism of an on-board drilling machine according to any of claims 1-3, characterized in that displacement sensors are provided on both the primary jack (4) and the secondary jack (5).
7. A dual drive pitch mechanism of an on-board drilling machine according to any of claims 1-3, characterized in that the dual drive pitch mechanism further comprises a turntable (7);
the base (1) is arranged on the rotary table (7), and the rotary table (7) can drive the base (1) to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322280429.8U CN220469823U (en) | 2023-08-24 | 2023-08-24 | Dual-drive pitching mechanism of airborne drilling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322280429.8U CN220469823U (en) | 2023-08-24 | 2023-08-24 | Dual-drive pitching mechanism of airborne drilling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220469823U true CN220469823U (en) | 2024-02-09 |
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ID=89798181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322280429.8U Active CN220469823U (en) | 2023-08-24 | 2023-08-24 | Dual-drive pitching mechanism of airborne drilling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220469823U (en) |
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2023
- 2023-08-24 CN CN202322280429.8U patent/CN220469823U/en active Active
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