Rock drilling jumbo for underground engineering with all-time collapse prevention

Abstract

The invention provides a full-time anti-collapse underground engineering drilling jumbo, comprising a tracked mechanical chassis, a rock drill, two support modules and a centering module. The rock drill is fixed to the front end of the tracked mechanical chassis; the two support modules are symmetrically arranged at the front and rear ends of the load-bearing platform of the tracked mechanical chassis; each support module comprises a support assembly, a longitudinal driving assembly and a top plate, the top of the support assembly is fixed to the bottom of the top plate, the longitudinal driving assembly is arranged on the support assembly to drive the support assembly to move the top plate up and down, so that the bottom of the support assembly and the ground of the mine tunnel and the top of the top plate and the top of the inner wall of the mine tunnel can be in separable contact; the centering module comprises two transverse driving assemblies and a support frame arranged on the load-bearing platform, the two transverse driving assemblies are symmetrically arranged on the support frame to drive the support assembly and drive the top plate to move alternately in the forward direction of the tracked mechanical chassis. The scheme provided by the invention can ensure that the top of the inner wall of the mine tunnel is always in a supported state during the movement of the drilling jumbo.

Description

Technical Field

[0001] This invention relates to the field of mine tunnel construction technology, and more specifically, to an underground engineering rock drilling rig designed to prevent collapse at all times. Background Technology

[0002] During underground rock drilling, the roof rock mass is highly susceptible to loosening and collapse due to the combined effects of geological stress and tunneling vibration. Therefore, providing continuous and stable support for the mine roof throughout the entire operation and equipment movement process is a core requirement for ensuring construction safety. However, existing rock drilling equipment mostly uses rubber discs as support components. When the equipment is moved or the work position is changed, all support components must be separated from the inner wall of the mine, resulting in an unavoidable "window period" of unsupported space at the top of the mine, posing a significant safety hazard.

[0003] Existing patents have made related improvements. For example, Chinese patent CN118391044B discloses an underground engineering anti-collapse rock drilling device, which includes a vehicle body with a drive and steering function. The top surface of the vehicle body is equipped with two first turntables. The vehicle body is equipped with an adjustment device that drives the two first turntables to rotate synchronously in opposite directions. Two first hydraulic rods are rotatably installed at the eccentric part of the first turntables. A top plate is set on the corresponding first hydraulic rods on the left and right sides. Slide grooves are opened on both sides of the bottom surface of the top plate, and slide bars are set in the slide grooves. When the vehicle body of this patent moves, there is always a top plate in contact with the top surface of the inner wall of the mine tunnel, thereby ensuring the safety of the vehicle body during the forward movement.

[0004] However, analysis of existing technology reveals that, in order to prevent mine tunnel collapses during rock drilling, the aforementioned device, used for alternating support of the tunnel's inner wall, requires the rear roof plate to retract and separate from the tunnel's inner wall as the vehicle moves forward. A turntable then rotates the device to cross over to the front for renewed support. During this replacement cycle, although theoretically one roof plate remains in contact, the local support area is instantly halved, reducing the overall system's support stiffness. More importantly, during the alternating movement of the front and rear roof plates, a physical gap inevitably remains between the old and new support positions, not effectively covered by the roof plate. This means that as the vehicle advances, a periodic "blind spot" of support appears at the top of the tunnel's inner wall, leaving it unsupported and suspended. Due to the complex geological conditions of the surrounding rock and the rapid changes in rock stress during underground engineering, this intermittent, locally gapped support method cannot achieve continuous and seamless protection for the tunnel's top. The remaining unsupported areas are highly susceptible to rock loosening and detachment, posing a significant risk of collapse. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an underground engineering rock drilling rig that is resistant to collapse at all times, so as to ensure that the top of the inner wall of the mine tunnel is always in a back-supported state during the movement of the device, thereby ensuring the safety of the underground engineering implementation.

[0006] To address the aforementioned technical problems, embodiments of the present invention provide an all-weather, collapse-resistant underground engineering rock drilling rig, comprising:

[0007] Tracked machinery chassis;

[0008] A rock drill is fixed to the front end of the tracked machinery chassis with its drill head facing the mine tunnel.

[0009] Two support modules are symmetrically arranged at the front and rear ends of the tracked machinery chassis platform. Each support module includes a support assembly, a longitudinal drive assembly, and a top plate. The top of the support assembly is fixedly connected to the bottom of the top plate. The longitudinal drive assembly is mounted on the support assembly and is used to drive the support assembly to move up and down, so that the bottom of the support assembly can be separated from the mine floor. The up and down movement of the support assembly causes the top of the top plate to be separated from the top of the mine inner wall.

[0010] The centering module includes two lateral drive components and a support frame. The support frame is mounted on the platform of the tracked machinery chassis and located between the two support modules. The two lateral drive components are symmetrically arranged on the support frame, and one end of each lateral drive component is fixedly connected to the support components at the front and rear ends, respectively. They are used to drive the support components and move the top plate along the forward direction of the tracked machinery chassis when the bottom of the support component separates from the mine road surface. The two lateral drive components run synchronously in opposite directions, and the horizontal movement speed of the support components is the same as the movement speed of the tracked machinery chassis.

[0011] In one embodiment, each support component includes:

[0012] Two support units are symmetrically arranged on both sides of the end of the tracked machine chassis; and

[0013] A connecting unit is disposed between two support units. The two ends of the connecting unit are slidably connected to the support units on both sides of the tracked machinery chassis. The inner side of the middle part of the connecting unit is fixedly connected to one end of the lateral drive component. The outer side of the middle part of the connecting unit is fixedly connected to one side of the longitudinal drive component. The output end of the longitudinal drive component is transmittedly connected to the support units on both sides of the tracked machinery chassis to drive the support units to move up and down.

[0014] In one embodiment, each support unit includes:

[0015] A push rod is disposed on one side of the end of the tracked machine chassis. The top of the push rod is fixedly connected to the bottom of the top plate, and the bottom of the push rod is slidably sleeved on the upper part of one end of the connecting unit. The bottom end of the push rod is also connected to the output end of the longitudinal drive assembly.

[0016] The bottom rod is disposed on the same end and side of the tracked machinery chassis opposite to the top rod. The top of the bottom rod is slidably sleeved on the lower part of one end of the connecting unit, and the top end of the bottom rod is connected to the output end of the longitudinal drive assembly. The bottom of the bottom rod can be separated from the mine surface.

[0017] In one embodiment, the connection unit includes:

[0018] A connecting plate is disposed between two support units. Each end of the connecting plate is symmetrically provided with fixing blocks, and each fixing block has a first through hole that matches the outer diameter of the support unit for sliding insertion of the support unit. A first rotating hole is provided at a preset position in the middle of the connecting plate.

[0019] Limiting plates are symmetrically arranged at the ends of the connecting plate, and the limiting plates at each end of the connecting plate are located between two fixing blocks at that end; and

[0020] A fixed frame is fitted onto the connecting plate and located in the middle of the connecting plate. One side of the fixed frame is fixedly connected to the inner side of the connecting plate, and the other side of the fixed frame is fixedly connected to the longitudinal drive assembly. A second rotating hole is provided on the fixed frame at a position opposite to the preset position in the middle.

[0021] In one embodiment, each longitudinal drive component includes:

[0022] A turntable is disposed within the fixed frame and located outside the connecting plate. The turntable is rotatably disposed within the fixed frame through a first rotating shaft passing through the first rotating hole and the second rotating hole.

[0023] A drive motor is disposed on the other side of the fixed frame, and the output end of the drive motor is fixed coaxially with the first rotating shaft; and

[0024] Two transmission units are centrally symmetrically arranged on the edge of the turntable. One end of each transmission unit is rotatably connected to the edge of the turntable, and the other end of each transmission unit is rotatably connected to support units symmetrically arranged on both sides of the end of the tracked machine chassis.

[0025] In one embodiment, each transmission unit includes:

[0026] The first connecting rod is rotatably connected at one end to the edge of the turntable;

[0027] A T-shaped rod is disposed at the other end of the first connecting rod. The longitudinal end of the T-shaped rod is slidably sleeved on the outside of a T-shaped positioning block disposed on the outside of the connecting plate, and the longitudinal end of the T-shaped rod is rotatably connected to the other end of the first connecting rod; and

[0028] The second connecting rods are symmetrically arranged at both ends of the transverse end of the T-shaped rod; one end of one second connecting rod is rotatably connected to one end of the transverse end of the T-shaped rod, and the other end is rotatably connected to the bottom of the top rod in the support unit; the other second connecting rod is rotatably connected to the other end of the transverse end of the T-shaped rod, and the other end is rotatably connected to the top of the bottom rod in the support unit.

[0029] In one embodiment, each lateral drive component includes:

[0030] A hydraulic unit is mounted on the support frame, and the telescopic end of the hydraulic unit is fixedly connected to the inner side of the connecting unit in the support assembly.

[0031] First guide units are symmetrically arranged on the support frame and located on both sides of the hydraulic unit. The bottom of each first guide unit is fixedly connected to the support frame, and one end of each first guide unit is fixedly connected to the inner side of the connecting unit in the support assembly.

[0032] The second guide unit is disposed on the support platform and located below the connecting unit. The top of the second guide unit is fixedly connected to the bottom side of the middle part of the connecting unit, and the top of the second guide unit is slidably connected to the support platform.

[0033] In one embodiment, each first guide unit includes:

[0034] A guide block, fixed to the support frame and located on the side of the hydraulic unit, has a first through hole; and

[0035] A first guide rod is slidably inserted into the guide block, and one end of the first guide rod is fixedly connected to the inner side of the connecting unit; and / or

[0036] The second guiding unit includes:

[0037] A slider is disposed on the support platform and slidably connected to the support platform; and

[0038] A sliding bracket is fixed to the slider, and the top of the sliding bracket is fixedly connected to the bottom side of the middle part of the connecting unit.

[0039] In one embodiment, the all-weather collapse-prevention underground engineering rock drilling rig further includes a buffer module disposed between the support assembly and the top plate, the buffer module comprising:

[0040] A first buffer unit is disposed at the bottom of the top plate, with its top fixedly connected to the bottom of the top plate to provide longitudinal buffering force when the top plate contacts the top of the inner wall of the mine tunnel, allowing the top plate to make elastic contact with the inner wall of the mine tunnel; and

[0041] The second buffer unit is disposed between the first buffer unit and the support assembly to provide lateral buffering force when the support assembly drives the top plate to move along the forward direction of the tracked machinery chassis, so as to avoid the movement of the tracked machinery chassis being obstructed.

[0042] In one embodiment, the first buffer unit includes:

[0043] Intermediate plates, spaced apart below the top plate; and

[0044] Multiple elastic structures, wherein the multiple elastic structures are evenly distributed between the top plate and the intermediate plate; and / or

[0045] The second buffer unit includes:

[0046] A fixing seat is disposed between the first buffer unit and the support assembly, and the fixing seat has a groove.

[0047] Multiple second guide rods are evenly arranged in the groove along the forward direction of the tracked machine chassis, and the two ends of the second guide rods are fixedly connected to the two side walls of the groove, respectively.

[0048] A sliding plate, fitted onto the second guide rod, has its top fixedly connected to the bottom of the first buffer unit, and its bottom slidingly contacting the bottom wall of the groove; and

[0049] The second spring is symmetrically arranged on both sides of the slide plate and respectively sleeved on the second guide rods on both sides of the slide plate, and the two ends of the second spring are in contact with the side wall of the groove and the wall of the slide plate, respectively.

[0050] The above-described solution of the present invention has at least the following beneficial effects:

[0051] (1) The present invention provides two top plates for contacting the top of the inner wall of the mine tunnel. The two top plates are respectively placed on the front and rear sides of the entire trolley. The present invention also provides a centering module for centering the two top plates. In the initial stage, the centering module makes the two top plates close to each other. When the entire trolley moves by the tracked mechanical chassis, the front top plate is not supported and the rear top plate is supported. At this time, the centering module makes the two top plates move away from each other. After the two top plates are separated to the maximum position, the front top plate is supported and the rear top plate is not supported. At this time, the centering module makes the two top plates close to each other, thereby ensuring that the inner wall of the mine tunnel is supported throughout the entire movement of the rock drilling trolley.

[0052] (2) Each top plate of the present invention is supported by a support assembly. Each support assembly consists of a top rod and a bottom rod. The two support units in each support assembly move synchronously through the same longitudinal drive assembly, and the forces are balanced, thereby ensuring the stability of the support.

[0053] (3) When the support module of the present invention is providing support, the two second connecting rods in the transmission unit of the longitudinal drive assembly, the T-head end (lateral end) of the T-shaped rod, the bottom rod, and the top rod are coaxial and vertical. In this way, the support module has multiple dead points, so that the support force application point of the support module is on the mine road surface, and the pressure on the top of the roof plate is transmitted to the mine road surface through the guidance of the support module, thereby reducing the support force provided by the entire tracked machinery chassis, reducing the energy used to provide support, and reducing the power consumption of the entire rock drilling rig. Attached Figure Description

[0054] Figure 1 This is a schematic diagram of the overall structure of the rock drilling rig provided in an embodiment of the present invention;

[0055] Figure 2 yes Figure 1 A magnified structural diagram at point A;

[0056] Figure 3 This is a three-dimensional structural diagram of the connection between the support component and the longitudinal drive component provided in an optional embodiment of the present invention;

[0057] Figure 4 This is a front view schematic diagram of the connection between the support component and the longitudinal drive component provided in an optional embodiment of the present invention;

[0058] Figure 5 This is a partial structural diagram of the connection between the support unit and the transmission unit provided in an optional embodiment of the present invention;

[0059] Figure 6 This is a partial sectional view of the T-shaped bar and vertical plate provided in an optional embodiment of the present invention;

[0060] Figure 7 This is a three-dimensional structural diagram of the connection between the buffer module and the top plate provided in an optional embodiment of the present invention;

[0061] Figure 8 This is a side view of an optional embodiment of the present invention showing the connection between the buffer module and the top plate;

[0062] Figure 9 This is a three-dimensional structural diagram of the centering module portion provided in an optional embodiment of the present invention.

[0063] Reference numerals: 1. Second guide unit; 2. Tracked machine chassis; 3. Rock drill; 4. Top plate; 5. Elastic structure; 6. Intermediate plate; 7. Second buffer unit; 8. Centering module; 9. Support module; 10. Horizontal plate; 11. Fixing frame; 12. Reducer; 13. Servo motor; 14. Turntable; 15. First connecting rod; 16. T-bar; 17. Limiting plate; 18. Second connecting rod; 19. Vertical plate; 20. 21. Top rod; 22. Bottom rod; 23. Guide rail; 24. Sliding bracket; 25. Slider; 26. Fixing block; 27. First rotating shaft; 28. Second rotating shaft; 29. ​​Double-section telescopic cylinder; 30. First spring; 31. Fixing seat; 32. Groove; 33. Slide plate; 34. Second spring; 35. Second guide rod; 36. Support frame; 37. Hydraulic rod; 38. First guide rod; 39. Guide block; 30. T-shaped positioning block. Detailed Implementation

[0064] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0065] In the description of this invention, it should be understood that the terms "comprising / including," "consisting of," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a product, apparatus, process, or method that comprises a list of elements includes not only those elements but may also include, where necessary, other elements not expressly listed, or elements inherent to such a product, apparatus, process, or method. Without further limitation, an element defined by the phrases "comprising / including," "consisting of," does not exclude the presence of additional identical elements in the product, apparatus, process, or method that includes said element.

[0066] It should also be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device, component or structure referred to must have a specific orientation, be constructed or operated in a specific orientation, and should not be construed as a limitation of the present invention.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0068] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0069] like Figure 1 As shown, an embodiment of the present invention provides an all-weather, anti-collapse underground engineering rock drilling rig, which may include a tracked machinery chassis 2, a rock drill 3, two support modules 9, and a centering module 8. The rock drill 3 is fixed to the front end of the tracked machinery chassis 2 with its drill head facing the mine tunnel, and is used for rock drilling. The two support modules 9 are symmetrically arranged at the front and rear ends of the tracked machinery chassis 2's support platform. Each support module 9 includes a support component, a longitudinal drive component, and a top plate 4. The top of the support component is fixedly connected to the bottom of the top plate 4. The longitudinal drive component is disposed on the support component and is used to drive the corresponding end of the tracked machinery chassis 2 to move up and down, so that the bottom of the support component can be separated from the mine tunnel surface. The up and down movement of the support component causes the top of the top plate 4 to be separated from the top of the mine tunnel inner wall, thereby supporting the top of the mine tunnel inner wall.

[0070] Here, the centering module 8 is mounted on the tracked machinery chassis 2 and located between the two support modules 9. The centering module 8 is used to drive the support components in each support module 9 to move closer or further away. The movement of the support components causes the corresponding top plate 4 to move closer or further away, so that the two top plates 4 alternately support the top of the mine tunnel inner wall. The centering module 8 may include two transverse drive components and a support frame 35; the support components, longitudinal drive components, top plates 4, and transverse drive components correspond one-to-one to ensure the stability and consistency of the two front and rear support components and the corresponding top plates during the movement and support process.

[0071] Here, the support frame 35 is fixed on the carrier platform of the tracked machinery chassis 2 and located between the two support modules 9. Two lateral drive components are symmetrically arranged at both ends of the support frame 35. One side of each lateral drive component is fixedly connected to the top of the support frame 35, and one end of each lateral drive component is fixedly connected to the support components at the front and rear ends, respectively. On the one hand, the support module 9 is supported on the tracked machinery chassis 2. On the other hand, when the bottom of the support component is separated from the mine floor, the lateral drive component is used to drive the support component at the corresponding end of the tracked machinery chassis 2 and drive the top plate 4 to move in the forward direction of the tracked machinery chassis 2, so that the two top plates 4 are closer or farther away, so as to achieve alternating support for the top of the inner wall of the mine during the process of the tracked machinery chassis 2 driving the entire drilling rig forward. Here, the two lateral drive components operate synchronously in opposite directions, and the horizontal movement speed of the drive support component is the same as the movement speed of the tracked mechanical chassis 2, so as to drive the front and rear top plates 4 to move alternately in the forward direction of the tracked mechanical chassis 2, thereby ensuring that the inner wall of the mine tunnel is supported throughout the entire movement of the rock drilling rig (the entire movement of the rock drilling rig is the entire process of the rock drilling rig moving forward).

[0072] In the initial stage of rock drilling by the drilling rig, the two roof plates 4 approach each other under the action of the lateral drive components, and the entire drilling rig is driven to move by the tracked mechanical chassis 2. During the movement, the front roof plate 4 is not supported, while the rear roof plate 4 is supported. At this time, the two lateral drive components drive the two roof plates 4 away from each other (the linear velocity when separating is the same as the linear velocity of the tracked mechanical chassis 2). After the two roof plates 4 are separated to their maximum position, the front roof plate 4 is supported, while the rear roof plate 4 is not supported. At this time, the two lateral drive components drive the two roof plates 4 to approach each other (the linear velocity when approaching is the same as the linear velocity of the tracked mechanical chassis 2), thus ensuring that the inner wall of the mine tunnel is supported during the movement, avoiding collapse, and thus ensuring the safety of the underground engineering.

[0073] See Figures 1 to 5In an optional embodiment of the present invention, each support component may include two support units and a connecting unit. The two support units are symmetrically arranged on both sides of the end of the tracked machinery chassis 2 (the two support units of the front support component are located on both sides of the front end of the tracked machinery chassis 2, and the two support units of the rear support component are located on both sides of the rear end of the tracked machinery chassis 2), and are located below the top plate 4 at the corresponding end of the tracked machinery chassis 2 to stably support the top plate 4. The connecting unit is disposed between the two support units, with both ends slidably connected to the support units on both sides of the tracked machinery chassis 2. The inner side of the middle portion of the connecting unit at the corresponding end of the tracked machinery chassis 2 is fixedly connected to one end of the transverse drive component at the corresponding end, and the outer side of the middle portion of the connecting unit at the corresponding end of the tracked machinery chassis 2 is fixedly connected to one side of the longitudinal drive component at the corresponding end. The output end of the longitudinal drive component at this end is drively connected to the support units on both sides of the tracked machinery chassis 2 at this end to drive the support units at this end to move up and down. The up and down movement of the support units at this end drives the top plate 4 at its top to move up and down, thereby achieving contact and separation between the top plate 4 and the top of the inner wall of the mine tunnel.

[0074] See Figures 3 to 5 Here, each support unit may include a top rod 20 and a bottom rod 21. The top rod 20 is located on one side of the end of the tracked machinery chassis 2, with its top fixedly connected to the bottom of the top plate 4. The bottom of the top rod 20 is slidably sleeved on the upper part of one end of the connecting unit, and its bottom end is drive-connected to the output end of the longitudinal drive component at the corresponding end of the tracked machinery chassis 2. The bottom rod 21 is located opposite the top rod 20 on the same end and side of the tracked machinery chassis 2. The top of the bottom rod 21 is slidably sleeved on the lower part of one end of the connecting unit, and its top end is drive-connected to the output end of the longitudinal drive component at the corresponding end of the tracked machinery chassis 2. The bottom of the bottom rod 21 can be separably contacted with the mine surface.

[0075] In this embodiment, under the driving action of the longitudinal drive assembly at the corresponding end of the tracked machinery chassis 2, the top rod 20 slides upward to push the top plate 4 to contact the top of the inner wall of the mine tunnel, and the bottom rod 21 slides downward to contact the ground of the mine tunnel, forming vertical support to directly transmit the mine tunnel pressure borne by the top plate 4 to the ground, thereby reducing the support load of the tracked machinery chassis 2, reducing the energy required for support, and reducing the power consumption of the rock drilling rig. Here, the top rod 20 and the bottom rod 21 in the two support units (support components) on both sides of the corresponding end of the tracked machinery chassis 2 are driven by the same longitudinal drive assembly at that end, so that the two support units on both sides of the corresponding end of the tracked machinery chassis 2 are synchronously linked and subjected to balanced force, thereby ensuring the stability of the support.

[0076] See Figures 2 to 5In an optional embodiment of the present invention, the connecting unit may include a connecting plate, a limiting plate 17, and a fixing frame 11. The connecting plate is disposed between two supporting units, and each end of the connecting plate is symmetrically provided with fixing blocks 25, and each fixing block 25 has a first through hole that matches the outer diameter of the supporting unit for sliding insertion of the supporting unit. A first rotating hole is provided at a preset position in the middle of the connecting plate. Here, the connecting plate can be an I-shaped connecting plate. The top and bottom of the I-shaped connecting plate (located on both sides of the corresponding ends of the tracked machinery chassis 2) are slidably connected to the support units on both sides of the corresponding ends of the tracked machinery chassis 2. Specifically, two fixing blocks 25 are arranged opposite each other on the top two ends of the I-shaped connecting plate. Each of the two fixing blocks 25 has a first through hole in the vertical direction. The size of the first through hole matches the outer diameter of the top rod 20 and the bottom rod 21 so as to slide into the top rod 20 and the bottom rod 21 of the top side support unit of the I-shaped connecting plate. The bottom two ends of the I-shaped connecting plate are set in the same way as the top two ends so as to slide into the top rod 20 and the bottom rod 21 of the bottom side support unit of the I-shaped connecting plate. This will not be described in detail here.

[0077] See Figure 3 and Figure 4 In one feasible example of the present invention, the connecting plate may include a horizontal plate 10 and vertical plates 19 respectively disposed at both ends of the horizontal plate 10. The horizontal plate 10 is perpendicular to the two support units, and the two vertical plates 19 are parallel to the two support units. The vertical side of the vertical plate 19 is fixedly connected to the end of the horizontal plate 10, and fixing blocks 25 are fixedly connected to the upper and lower ends of the vertical plate 19 respectively. Here, the fixing blocks 25 are provided to restrict the top rod 20 and the bottom rod 21, so that the top rod 20 and the bottom rod 21 can slide up and down in the vertical direction. The inner side of the middle part of the horizontal plate 10 is fixedly connected to one end of the transverse drive assembly, and the outer side of the middle part of the horizontal plate 10 is fixedly connected to one side of the longitudinal drive assembly.

[0078] Limiting plates 17 are symmetrically arranged at the ends of the connecting plates. Specifically, the limiting plates 17 can be vertically fixed to the other side of the vertical plate 19, and the limiting plates 17 at each end of the connecting plate are located between the two fixing blocks 25 at that end; the two limiting plates 17, the two vertical plates 19, and the horizontal plate 10 form a U-shaped structure. The fixing frame 11 is sleeved on the connecting plate and located in the middle of the connecting plate. One side of the fixing frame 11 is fixedly connected to the inner side of the connecting plate, and the other side of the fixing frame 11 is fixedly connected to the longitudinal drive assembly; a second rotating hole is opened on the fixing frame 11 at a position opposite to the preset position in the middle.

[0079] In this embodiment, the fixing frame 11 can be configured as a U-shaped structure, specifically it can be sleeved in the middle of the horizontal plate 10, and the inner wall of one side of the fixing frame 11 is attached and fixed to the inner side of the horizontal plate 10, the outer wall of the same side is fixedly connected to one end of the horizontal drive component, and the outer wall of the other side of the fixing frame 11 is fixedly connected to one side of the vertical drive component.

[0080] See Figures 2 to 4 In an optional embodiment of the present invention, each longitudinal drive assembly may include a turntable 14, a drive motor, and two transmission units. The turntable 14 is disposed within the fixed frame 11 and located outside the connecting plate. The turntable 14 is rotatably disposed within the fixed frame 11 via a first rotating shaft 26 passing through a first rotating hole and a second rotating hole. The drive motor is disposed on the other side of the fixed frame 11, and the drive motor housing is fixedly connected to the outer wall of the other side of the fixed frame 11. The output end of the drive motor is coaxially fixed with the first rotating shaft 26 so as to synchronously drive the turntable 14 to rotate when the drive motor is started.

[0081] Two transmission units are centrally symmetrically positioned on the edge of the turntable 14. One end of each transmission unit is rotatably connected to the edge of the turntable 14, which can be achieved through a second rotating shaft 27. The other ends of each transmission unit are rotatably connected to support units symmetrically positioned on both sides of the end of the tracked machinery chassis 2, specifically to the bottom of the top rod 20 and the top of the bottom rod 21 in the support unit. When the drive motor starts and drives the turntable 14 to rotate, the turntable 14 rotates and transmits the driving force generated by the drive motor to the top rod 20 and the bottom rod 21 in the same support unit through the transmission units, thereby driving the top rod 20 and the bottom rod 21 to move up and down.

[0082] Continue reading Figures 2 to 4 The drive motor may include a reducer 12 and a servo motor 13. The housing of the reducer 12 is fixed to the housing of the servo motor 13. The other side of the housing of the reducer 12 is fixedly connected to the outer wall of the other side of the fixed frame 11. The output end of the servo motor 13 is coaxially fixed to the input shaft of the reducer 12. The output end of the reducer 12 is coaxially fixed to the first rotating shaft 26. Preferably, the reducer 12 can be a worm gear type. The worm gear type reducer 12 has self-locking properties, which prevents the first rotating shaft 26 from rotating when the reducer 12 is not working, thereby ensuring the stability of the entire structure.

[0083] By setting up a reducer 12, after the reducer 12 starts, it applies a high torque to the first rotating shaft 26. The servo motor 13 provides power to the reducer 12. The servo motor 13 drives the input shaft of the reducer 12 to rotate through its output shaft. The output shaft of the reducer 12 drives the first rotating shaft 26 to rotate. The rotation of the first rotating shaft 26 drives the turntable 14 to rotate. The rotation of the turntable 14 further drives the two transmission units symmetrically arranged on its edge to rotate. At this time, the two transmission units transmit the driving force to the two support units on both sides, which in turn drive the top rods 20 and bottom rods 21 on both sides to move up and down, so as to achieve contact or separation between the top plate 4 and the top of the inner wall of the mine tunnel. When in contact, it provides support. When separated, it cooperates with the corresponding end transverse drive component to drive the corresponding end support module 9 to move in the direction of the tracked mechanical chassis 2. It should be noted that during the entire movement of the rock drilling rig, the drive motors at the front and rear ends of the tracked mechanical chassis 2 run synchronously and in opposite directions, so that the two support modules 9 at the front and rear ends of the tracked mechanical chassis 2 run in opposite directions, thereby achieving alternating support of the top plate 4.

[0084] See Figures 3 to 6 In an optional embodiment of the present invention, each transmission unit may include a first connecting rod 15, a T-shaped rod 16, and a second connecting rod 18. One end of the first connecting rod 15 is rotatably connected to the edge of the turntable 14; preferably, the two can be rotatably connected via a second rotating shaft 27. The T-shaped rod 16 is disposed at the other end of the first connecting rod 15, and its longitudinal end (non-T-shaped end) is slidably sleeved on the outside of a T-shaped positioning block 39 disposed on the outside of the connecting plate, and the longitudinal end of the T-shaped rod is rotatably connected to the other end of the first connecting rod 15.

[0085] like Figure 6 As shown, the T-shaped positioning block 39 can be specifically set on the outside of the vertical plate 19, and the T-shaped end of the T-shaped positioning block 39 extends towards the longitudinal end (non-T-shaped end) of the T-shaped rod 16. Preferably, the T-shaped positioning block 39 can be set between the two fixing blocks 25 at the end of the vertical plate 19. By setting the T-shaped positioning block 39, a rigid guiding constraint is formed on the T-shaped rod 16, thereby limiting the T-shaped rod 16 to only move horizontally in a straight line along the extension direction of the T-shaped positioning block 39, and preventing it from rotating.

[0086] The second connecting rods 18 are symmetrically arranged at both ends of the transverse end (T-shaped end) of the T-shaped rod 16; one end of one second connecting rod 18 is rotatably connected to one end of the transverse end of the T-shaped rod 16, and the other end is rotatably connected to the bottom of the top rod 20 in the support unit; the other second connecting rod 18 is rotatably connected to the other end of the transverse end of the T-shaped rod 16, and the other end is rotatably connected to the top of the bottom rod 21 in the support unit. All of these can be rotatably connected via the second rotating shaft 27.

[0087] In this embodiment, the drive motor drives the first rotating shaft 26 to rotate the turntable 14 which is fixed coaxially with it. When the turntable 14 rotates, one end of the first connecting rod 15 moves in a circular motion with the turntable 14, and the other end of the first connecting rod 15 is subject to the sliding constraint of the T-shaped rod 16, which converts the circular motion into the horizontal linear movement of the T-shaped rod 16 along the extension direction of the T-shaped positioning block 39 (the extension direction of the horizontal plate 10). Since one end of the second connecting rod 18 is rotatably connected to both ends of the T-shaped end of the T-shaped rod 16, and the other end of the second connecting rod 18 is rotatably connected to the top rod 20 and the bottom rod 21 respectively, the horizontal linear movement of the T-shaped rod 16 is converted into the vertical reverse movement of the top rod 20 and the bottom rod 21 through the second connecting rod 18, and finally realizes the action of the top plate contacting support or separating.

[0088] It should be understood that, since the two first connecting rods 15 are centrally symmetrical, when the drive motor drives the support assembly at one end of the tracked mechanical chassis 2 and causes the top plate 4 to perform a contact support action, the two T-shaped rods 16 move horizontally away from each other, that is, the T-shaped rods 16 move closer to the limiting plates 17 adjacent to each other; when the drive motor drives the support assembly at one end of the tracked mechanical chassis 2 and causes the top plate 4 to perform a separation action, the two T-shaped rods 16 move horizontally closer to each other, that is, the T-shaped rods 16 move away from the limiting plates 17 adjacent to each other.

[0089] During the driving contact process, when the T-shaped end of the T-shaped rod 16 contacts the limiting plate 17, the T-shaped end of the T-shaped rod 16, the top rod 20, the bottom rod 21, and the two second connecting rods 18 are coaxially arranged and in a vertical state. At this time, the T-shaped end of the T-shaped rod 16 and the first connecting rod 15 are both in a horizontal state, so that the transmission unit forms a locking point in the horizontal and vertical directions. With the T-shaped end of the T-shaped rod 16, the top rod 20, the bottom rod 21, and the two second connecting rods 18 coaxially arranged and in a vertical state, the entire support module 9 has multiple dead points in the vertical direction. This makes the support force application point of the support module 9 on the mine road surface, thereby reducing the support force provided by the entire tracked machinery chassis 2, reducing the energy used to provide support, and lowering the power consumption of the entire rock drilling rig. When the T-shaped end of the T-shaped rod 16 and the first connecting rod 15 are both in a horizontal state, the entire support module 9 has multiple dead points in the horizontal direction, reducing the energy used to provide lateral support, and further reducing the power consumption of the entire rock drilling rig.

[0090] See Figure 1 , Figure 2 and Figure 9 In an optional embodiment of the present invention, each lateral drive assembly may include a hydraulic unit, a first guide unit, and a second guide unit 1. The hydraulic unit is disposed on the support frame 35, and the telescopic end of the hydraulic unit is fixedly connected to the inner side (the side closest to the support frame 35) of the connecting unit in the support assembly.

[0091] Here, the hydraulic unit can be a hydraulic rod 36. The telescopic end of the hydraulic rod 36 can be fixedly connected to the outer wall of the fixed frame 11 (the side close to the support frame 35) sleeved in the middle of the connecting plate, so as to drive the connecting plate to move in the forward direction along the tracked machine chassis 2 through telescopic movement, thereby driving the entire support module 9 to move in the forward direction along the tracked machine chassis 2.

[0092] Here, the two hydraulic rods 36 at the front and rear ends of the tracked machinery chassis 2 are of the same specification, and both hydraulic rods 36 are equipped with displacement sensors for monitoring the telescopic distance, so as to accurately control the movement distance of the support module 9 along the forward direction of the tracked machinery chassis 2. Since one side of the hydraulic rod 36 is fixed to the top of the support frame 35, and the telescopic end of the hydraulic rod 36 is fixedly connected to the inner side of the connecting plate, when the hydraulic rod 36 telescopically moves, the hydraulic rod 36 will push the connecting plate to move the support unit away from the end of the support frame 35 or pull the connecting plate to move the support unit closer to the end of the support frame 35. The two hydraulic rods 36 move synchronously in opposite directions. That is, when the tracked machinery chassis 2 moves forward, the front hydraulic rod 36 extends and the rear hydraulic rod 36 retracts synchronously to ensure that the two top plates 4 can be supported alternately in a step-by-step manner, thereby eliminating the support gap period at the top of the mine tunnel. This ensures that the top of the inner wall of the mine tunnel is always initially supported during the entire time the drilling rig is moving, thus preventing collapse.

[0093] In the design of the rock drilling rig, the linear velocity of the extension and retraction of the hydraulic rod 36 is consistent with the linear velocity of the movement of the tracked mechanical chassis 2. Through the synchronous reverse movement of the front and rear hydraulic rods, the retraction movement of the rear hydraulic rod in the supported state precisely cancels the forward displacement of the tracked mechanical chassis 2, thereby ensuring that the stressed roof plate 4 remains absolutely horizontal and stationary relative to the mine wall, avoiding hard sliding friction that would damage the structural stability. At the same time, the extension of the front hydraulic rod smoothly pushes the front roof plate on the separated side to the next position. Only after it is fully stressed does the rear roof plate separate, thus achieving seamless connection of the supporting action. In addition, the synchronous reverse differential complementary displacement of the front and rear hydraulic rods not only ensures the dynamic stability of the center of gravity when the whole machine moves, but also ensures that the two roof plates 4 always maintain a preset fixed overlap in the horizontal direction.

[0094] Here, the fixed overlap refers to the pre-defined overlapping area on the horizontal projection surface of the two top plates 4 in the forward direction, which aims to provide a physical connection basis for the alternating movement of the top plates 4 and fundamentally eliminate the support gap period.

[0095] See Figure 9The first guide unit is symmetrically arranged on the support frame 35 and located on both sides of the hydraulic unit (each hydraulic unit has a first guide unit on both sides). The bottom of each first guide unit is fixedly connected to the support frame 35, and one end of each first guide unit is fixedly connected to the inner side of the connecting unit in the support assembly. Specifically, it can be fixedly connected to the outer wall of the fixed frame 11 sleeved outside the middle of the connecting plate.

[0096] See Figure 1 and Figure 2 The second guide unit 1 is disposed on the support platform and located below the connecting unit. The top of the second guide unit 1 is fixedly connected to the bottom side of the middle part of the connecting unit, and the top of the second guide unit 1 is slidably connected to the support platform. Here, the second guide unit 1 may be located below the fixed frame 11 sleeved outside the middle part of the connecting plate, and its top is fixedly connected to the bottom outer wall of the fixed frame 11.

[0097] By setting the first guide unit and the second guide unit 1, the connecting plate (horizontal plate 10) is restricted to moving smoothly only in the forward direction of the tracked mechanical chassis 2 (when the hydraulic rod 36 extends or retracts, it directly pulls or pushes the connecting plate; the first guide unit and the second guide unit 1 can counteract the lateral force, ensuring precise movement without deviation). Here, the two hydraulic units drive the front and rear support modules 9 to move synchronously in opposite directions, and the linear velocity of the separation or approach of the two support modules 9 is completely consistent with the moving speed of the tracked mechanical chassis 2, so that during the movement of the rock drilling rig, "one top plate supports, one top plate moves" is always maintained. That is, when the rear top plate is supported, the front end of the front top plate moves to the new support position with the extension of the hydraulic rod 36. After it is in place, the front longitudinal drive component is immediately activated to drive contact and support. When the front top plate contacts the support, the hydraulic rod 36 at the rear end of the rear top plate shortens and resets. During the reset process, it does not disengage from the support until the front top plate is fully stressed, with no gaps in the connection, so as to avoid support gaps.

[0098] See Figure 9 In an optional embodiment of the present invention, each first guide unit may include a guide block 38 and a first guide rod 37. The guide block 38 is fixed to the support frame 35 and located on the side of the hydraulic unit, and a first through hole is provided on the guide block 38. The first guide rod 37 is slidably inserted into the guide block 38, and one end of the first guide rod 37 is fixedly connected to the inner side of the connecting unit, specifically, it may be fixedly connected to the outer wall of one side of the fixed frame 11 sleeved outside the middle of the connecting plate. One end of each of the two first guide rods 37 is located on both sides of the telescopic end of the hydraulic unit.

[0099] In this embodiment, the two first guide rods 37 on both sides of the hydraulic unit cooperate with the corresponding guide blocks 38 to form a guide and limiting track for the extension and retraction movement of the hydraulic unit. When the hydraulic unit extends and retracts and pulls or pushes the connecting plate to move, the first guide rods 37 extend and retract in the first through holes in the corresponding guide blocks 38. Through the cooperation of the first guide rods 37 on both sides and the guide blocks 38, the lateral forces on both ends of the connecting plate caused by the extension and retraction movement of the hydraulic unit are offset, thereby ensuring the stability of the movement of the connecting plate and further ensuring the stability of the movement of the entire support module 9.

[0100] See Figure 1 and Figure 2 In an optional embodiment of the present invention, the second guide unit 1 may include a slider 24 and a sliding bracket 23. The slider 24 is disposed on the support platform and slidably connected to the support platform; the sliding bracket 23 is fixed on the slider 24, and the top of the sliding bracket 23 is fixedly connected to the bottom side of the middle part of the connecting unit, which may be fixedly connected to the bottom outer wall of the fixed frame 11 sleeved outside the middle part of the connecting plate.

[0101] Preferably, a guide rail 22 is provided on the support platform of the tracked machinery chassis 2. The guide rail 22 is fixed to the support platform, and the slider 24 is slidably sleeved on the outside of the guide rail 22. The top of the slider 24 is fixedly connected to the bottom of the sliding bracket 23, thereby forming a complete vertical connection and force transmission path of "fixed frame 11-sliding bracket 23-sliding slider 24-guide rail 22-support platform". Here, the second guide unit composed of the sliding bracket 23, slider 24 and guide rail 22 is not only completely aligned with the bottom middle side of the fixed frame 11, but also in the same vertical motion plane as the guide rail system.

[0102] When the hydraulic unit extends and retracts and pulls or pushes the connecting plate, the connecting plate drives the sliding bracket 23 below it, together with the slider 24, to move along the guide rail 22. The sliding bracket 23 can provide reliable vertical support and horizontal guidance for its horizontal reciprocating motion, effectively offsetting the lateral force during the extension and retraction of the hydraulic unit, and ensuring the accuracy and stability of the horizontal movement of the entire support module. At the same time, the setting of the second guide unit 1 also provides upward support force for the connecting plate, further ensuring the structural stability of the entire rock drilling rig.

[0103] See Figure 1 , Figure 7 and Figure 8In an optional embodiment of the present invention, the aforementioned all-time anti-collapse underground engineering drilling rig may further include a buffer module. This buffer module is disposed between the support assembly and the top plate 4, specifically between the bottom of the top plate 4 and the top of the top rods 20 of the two support units of the support assembly. The buffer module may include a first buffer unit and a second buffer unit 7. The first buffer unit is disposed at the bottom of the top plate 4, with its top fixedly connected to the bottom of the top plate 4, to provide longitudinal buffering force when the top plate 4 contacts the top of the inner wall of the mine tunnel, allowing the top plate 4 to make elastic contact with the inner wall of the mine tunnel. The second buffer unit 7 is disposed between the first buffer unit and the support assembly, specifically between the bottom of the first buffer unit and the top of the top rods 20 of the two support units of the support assembly, to provide lateral buffering force when the support assembly drives the top plate 4 to move along the forward direction of the tracked machinery chassis 2, preventing the movement of the tracked machinery chassis 2 from being obstructed.

[0104] See Figure 7 and Figure 8 In an optional embodiment of the present invention, the first buffer unit may include an intermediate plate 6 and a plurality of elastic structures 5. The intermediate plate 6 is spaced apart below the top plate 4, and the plurality of elastic structures 5 are evenly distributed between the top plate 4 and the intermediate plate 6. Preferably, each elastic structure 5 may include a double-section telescopic cylinder 28 and a first spring 29. The double-section telescopic cylinder 28 is disposed between the top plate 4 and the intermediate plate 6, and its two ends are fixedly connected to the bottom of the top plate 4 and the top of the intermediate plate 6, respectively. The first spring 29 is sleeved on the outside of the double-section telescopic cylinder 28, and its two ends are in contact with the bottom of the top plate 4 and the top of the intermediate plate 6, respectively.

[0105] By setting the first buffer unit, when the top plate 4 contacts the top of the inner wall of the mine tunnel, the double-section telescopic cylinder 28 shortens, and the first spring 29 is compressed. The entire elastic structure 5 makes elastic contact between the top plate 4 and the top of the inner wall of the mine tunnel. That is, when the top plate 4 contacts the top of the inner wall of the mine tunnel, it allows the top plate 4 to have a downward dynamic range. This ensures that when the T-shaped end of the T-rod 16 contacts the limiting plate 17, the T-shaped end of the T-rod 16, the top rod 20, the bottom rod 21, and the two second connecting rods 18 are coaxially arranged and... Vertical setting; without the elastic structure 5, the top plate 4 will make rigid contact with the inner wall of the top of the mine tunnel. If the height of the top of the inner wall of the mine tunnel is too low, the top plate 4 will contact the top of the inner wall of the mine tunnel in advance, and the T-shaped end of the T-rod 16 will not be able to contact the limiting plate 17. The T-shaped end of the T-rod 16, the top rod 20, the bottom rod 21 and the two second connecting rods 18 cannot be coaxial. At this time, the support assembly is in an unstable support state. If a stable support is to be maintained, a large support energy is required, which leads to a high power consumption of the entire rock drilling rig.

[0106] See Figure 1 , Figure 7 as well as Figure 8 In an optional embodiment of the present invention, the second buffer unit 7 may include a fixed seat 30, a plurality of second guide rods 34, a sliding plate 32, and a second spring 33. The fixed seat 30 is disposed between the first buffer unit and the support assembly, specifically between the bottom of the intermediate plate 6 and the top of the top rods 20 of the two support units of the support assembly, and the bottom of the fixed seat 30 is fixedly connected to the top of the top rods 20 of the two support units of the support assembly. A groove 31 is provided on the fixed seat 30. A plurality of second guide rods 34 are evenly disposed in the groove 31 along the forward direction of the tracked machine chassis 2, and the two ends of the second guide rods 34 are fixedly connected to the two side walls of the groove 31 respectively. The sliding plate 32 is sleeved on the second guide rods 34, and the top of the sliding plate 32 is fixedly connected to the bottom of the first buffer unit, specifically at the middle position of the bottom of the intermediate plate 6. The bottom of the sliding plate 32 slides in contact with the bottom wall of the groove 31. The second springs 33 are symmetrically disposed on both sides of the sliding plate 32 and respectively sleeved on the second guide rods 34 on both sides of the sliding plate, and the two ends of the second springs 33 are in contact with the side wall of the groove 31 and the side of the sliding plate 32 respectively.

[0107] By setting the second buffer unit 7, when the top plate 4 at the front or rear end of the tracked machinery chassis 2 contacts the top of the inner wall of the mine, the top plate 4 at the corresponding other end is separating from the top of the inner wall of the mine. At this time, the separation process is not immediate. During this process, the tracked machinery chassis 2 continues to move. The slide plate 32 under the top plate 4 that has not separated in time will move along the second guide rod 34. If the top plate 4 on the front support module 9 is separating from the top of the inner wall of the mine, the second spring 33 on the front side of the slide plate 32 in the front second buffer unit (the side with the same forward direction as the tracked machinery chassis 2) is compressed. If the top plate 4 on the rear support module 9 is separating from the top of the inner wall of the mine, the second spring 33 on the rear side of the slide plate 32 in the rear second buffer unit (the side with the opposite forward direction to the tracked machinery chassis 2) is compressed. The elastic force generated by the compression of the second spring 33 provides lateral buffer force, thereby avoiding obstruction of the movement of the tracked machinery chassis 2, and thus ensuring the stability and safety of the entire rock drilling rig.

[0108] In practical applications, the specific support change process of the support module 9 of the rock drilling rig provided in the above embodiments of the present invention is as follows:

[0109] Step 11, Initial Stage: The two roof plates 4 are close to each other. At this time, the two roof plates 4 are at their minimum distance in the horizontal direction (the forward direction of the tracked machinery chassis 2). Both roof plates 4 are suspended and not in contact with the top of the mine tunnel wall, which is a "waiting-to-be-supported" posture. Here, the two roof plates 4 are at their minimum distance in the horizontal direction. The minimum distance at this time refers to the two roof plates 4 being horizontally close to the designed limit position, which is the fixed overlap reserved in the design. This ensures the continuity of support coverage while reserving the necessary movement margin for the lifting and horizontal reciprocating movement of the roof plates. It effectively avoids mechanical interference, collision or friction with the mine tunnel wall during the movement of the two roof plates 4, thereby ensuring the smoothness and stability of the alternating support action, avoiding friction with the mine tunnel wall or jamming during movement, and eliminating the support blind spot at the top of the mine tunnel.

[0110] In the initial stage, servo motor 13 is not powered on and started. During this stage:

[0111] The top rod 20, bottom rod 21, T-shaped end of T-rod 16 and two second connecting rods 18 are in the initial reset state (the five are in the following relationship: not on the same axis, not vertically set, not forming a dead point structure, and only maintaining the natural reset posture after mechanical assembly).

[0112] The two first links 15 are stationary with the turntable 14, and the two first links 15 are tilted (not horizontal). Since the two second rotating shafts 27 connecting the two first links 15 and the turntable 14 are symmetrical, the two first links 15 move closer to the inside of the fixed frame 11.

[0113] The non-T-shaped end of the T-shaped rod 16 is fitted in the middle of the T-shaped positioning block 39 and does not move toward the limiting plate 17. The two T-shaped rods 16 are in a "close to each other" state.

[0114] Both the top rod 20 and the bottom rod 21 are in a retracted state, causing the top of the top plate 4 to separate from the top of the inner wall of the mine tunnel, and the bottom of the bottom rod 21 to separate from the ground of the mine tunnel.

[0115] Step 12: The servo motor 13 at the rear of the tracked mechanical chassis 2 starts. The servo motor 13 drives the input shaft of the reducer 12 to rotate via its output shaft. The output shaft of the reducer 12 drives the first rotating shaft 26 to rotate. The first rotating shaft 26 drives the turntable 14, which is coaxially fixed to it, to rotate. The turntable 14 causes the two T-shaped rods 16 to move linearly away from each other via two centrally symmetrical first connecting rods 15; that is, the two T-shaped rods 16 move linearly towards the adjacent limiting plates 17. The two ends of the T-shaped ends of the T-shaped rods 16 are respectively connected by two second connecting rods 15. The connecting rod 18 separates the top rod 20 and the bottom rod 21. The top rod 20 moves upward and the bottom rod 21 moves downward. When the T-shaped end of the T-rod 16 contacts the limiting plate 17, the T-shaped end of the T-rod 16, the top rod 20, the bottom rod 21, and the two second connecting rods 18 are coaxially and vertically arranged. The top rod 20 moves the top plate 4 upward through the intermediate plate 6, the elastic structure 5, and the second buffer unit 7. When the top plate 4 contacts the top of the inner wall of the mine, the double-section telescopic cylinder 28 shortens, and the first spring 29 is compressed. The bottom rod 21 contacts the ground of the mine.

[0116] Step 13: The tracked mechanical chassis 2 moves, and the two hydraulic rods 36 move synchronously in opposite directions (at this time, the front hydraulic rod 36 extends and the rear hydraulic rod 36 retracts), and the linear velocity of the extension or retraction of the hydraulic rods 36 is consistent with the linear velocity of the tracked mechanical chassis 2. The displacement sensor inside the hydraulic rod 36 detects the moving distance of the telescopic end. When the telescopic end of the hydraulic rod 36 is about to extend to the maximum distance, the front servo motor 13 starts, the front support module 9 performs the work of step 12 above, and the output shaft of the rear servo motor 13 rotates. During this process, when the front top plate 4 contacts the top of the inner wall of the mine, the top plate 4 at the rear position is separating from the top of the inner wall of the mine. This process is not immediate. The tracked mechanical chassis 2 continues to move. At this time, the slide plate 32 of the second buffer unit 7 in the corresponding rear buffer module does not separate in time and moves along the second guide rod 34. Then the second spring 33 on the front side of the slide plate 32 of the second buffer unit 7 in the front buffer module is compressed.

[0117] Step 14: After the front top plate 4 contacts the top of the inner wall of the mine tunnel, and the rear top plate 4 separates from the top of the inner wall of the mine tunnel, the two hydraulic rods 36 move in opposite directions synchronously (the front hydraulic rod 36 extends, and the rear hydraulic rod retracts). Similarly, the linear velocity of the extension and retraction of the hydraulic rods 36 is consistent with the linear velocity of the tracked mechanical chassis 2. When the extension and retraction end of the hydraulic rods 36 is about to shorten to the minimum distance, the rear servo motor 13 is started, and the rear support module 9 performs the work of step 12 above. At the same time, the front servo motor 13 rotates. During this process, when the rear top plate 4 is separating from the top of the inner wall of the mine tunnel, the second spring 33 on the rear side of the slide plate 32 of the second buffer unit 7 in the rear buffer module is compressed.

[0118] Steps 12 to 14 are repeated sequentially to ensure that the inner wall of the top of the mine tunnel is always supported during the entire time the drilling rig is moving, thus preventing collapse and ensuring the safety of the underground engineering project.

[0119] The above description represents the preferred embodiments of the present invention. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A rock drilling rig for underground engineering with all-weather collapse prevention, characterized in that, include: Tracked machinery chassis; A rock drill is fixed to the front end of the tracked machinery chassis with its drill head facing the mine tunnel. Two support modules are symmetrically arranged at the front and rear ends of the tracked machinery chassis platform. Each support module includes a support assembly, a longitudinal drive assembly, and a top plate. The top of the support assembly is fixedly connected to the bottom of the top plate. The longitudinal drive assembly is mounted on the support assembly and is used to drive the support assembly to move up and down, so that the bottom of the support assembly can be separated from the mine floor. The up and down movement of the support assembly causes the top of the top plate to be separated from the top of the mine inner wall. The centering module includes two lateral drive components and a support frame. Each lateral drive component includes a hydraulic unit mounted on the support frame, which is located on the platform of the tracked machinery chassis between the two support modules. The two lateral drive components are symmetrically arranged on the support frame, with one end of each component fixedly connected to the front and rear support components, respectively. They are used to drive the support components and move the top plate along the forward direction of the tracked machinery chassis when the bottom of the support component separates from the mine surface, thus moving the two top plates closer together or further apart. The two lateral drive components operate synchronously in opposite directions and drive... The horizontal movement speed of the support assembly is the same as the movement speed of the tracked machinery chassis; the two top plates always maintain a preset fixed overlap in the horizontal direction; during the movement of the rock drilling rig, when the top plate at the rear end of the tracked machinery chassis is supported, the top plate at the front end of the tracked machinery chassis extends and moves to the new support position with the front hydraulic unit, and after it is in place, the longitudinal drive assembly at the front end is activated to drive contact and support. When the top plate at the front end of the tracked machinery chassis contacts the support, the top plate at the rear end of the tracked machinery chassis is shortened and reset by the hydraulic unit at the rear end, and does not detach from the support during the reset process until the top plate at the front end of the tracked machinery chassis is fully stressed, with a gapless connection.

2. The all-weather anti-collapse underground engineering rock drilling rig according to claim 1, characterized in that, Each support component includes: Two support units are symmetrically arranged on both sides of the end of the tracked machine chassis; and A connecting unit is disposed between two support units. The two ends of the connecting unit are slidably connected to the support units on both sides of the tracked machinery chassis. The inner side of the middle part of the connecting unit is fixedly connected to one end of the lateral drive component. The outer side of the middle part of the connecting unit is fixedly connected to one side of the longitudinal drive component. The output end of the longitudinal drive component is transmittedly connected to the support units on both sides of the tracked machinery chassis to drive the support units to move up and down.

3. The all-weather anti-collapse underground engineering rock drilling rig according to claim 2, characterized in that, Each support unit includes: A push rod is disposed on one side of the end of the tracked machine chassis. The top of the push rod is fixedly connected to the bottom of the top plate, and the bottom of the push rod is slidably sleeved on the upper part of one end of the connecting unit. The bottom end of the push rod is also connected to the output end of the longitudinal drive assembly. The bottom rod is disposed on the same end and side of the tracked machinery chassis opposite to the top rod. The top of the bottom rod is slidably sleeved on the lower part of one end of the connecting unit, and the top end of the bottom rod is connected to the output end of the longitudinal drive assembly. The bottom of the bottom rod can be separated from the mine surface.

4. The all-weather anti-collapse underground engineering rock drilling rig according to claim 2, characterized in that, The connection unit includes: A connecting plate is disposed between two support units. Each end of the connecting plate is symmetrically provided with fixing blocks, and each fixing block has a first through hole that matches the outer diameter of the support unit for sliding insertion of the support unit. A first rotating hole is provided at a preset position in the middle of the connecting plate. Limiting plates are symmetrically arranged at the ends of the connecting plate, and the limiting plates at each end of the connecting plate are located between two fixing blocks at that end; and A fixed frame is fitted onto the connecting plate and located in the middle of the connecting plate. One side of the fixed frame is fixedly connected to the inner side of the connecting plate, and the other side of the fixed frame is fixedly connected to the longitudinal drive assembly. A second rotating hole is provided on the fixed frame at a position opposite to the preset position in the middle.

5. The all-weather anti-collapse underground engineering rock drilling rig according to claim 4, characterized in that, Each longitudinal drive component includes: A turntable is disposed within the fixed frame and located outside the connecting plate. The turntable is rotatably disposed within the fixed frame through a first rotating shaft passing through the first rotating hole and the second rotating hole. A drive motor is disposed on the other side of the fixed frame, and the output end of the drive motor is fixed coaxially with the first rotating shaft; and Two transmission units are centrally symmetrically arranged on the edge of the turntable. One end of each transmission unit is rotatably connected to the edge of the turntable, and the other end of each transmission unit is rotatably connected to support units symmetrically arranged on both sides of the end of the tracked machine chassis.

6. The all-weather, collapse-resistant underground engineering drilling rig according to claim 5, characterized in that, Each transmission unit includes: The first connecting rod is rotatably connected at one end to the edge of the turntable; A T-shaped rod is disposed at the other end of the first connecting rod. The longitudinal end of the T-shaped rod is slidably sleeved on the outside of a T-shaped positioning block disposed on the outside of the connecting plate, and the longitudinal end of the T-shaped rod is rotatably connected to the other end of the first connecting rod; and The second connecting rods are symmetrically arranged at both ends of the transverse end of the T-shaped rod; one end of one second connecting rod is rotatably connected to one end of the transverse end of the T-shaped rod, and the other end is rotatably connected to the bottom of the top rod in the support unit; the other second connecting rod is rotatably connected to the other end of the transverse end of the T-shaped rod, and the other end is rotatably connected to the top of the bottom rod in the support unit.

7. The all-weather anti-collapse underground engineering rock drilling rig according to claim 1, characterized in that, Each lateral drive component includes: A hydraulic unit is mounted on the support frame, and the telescopic end of the hydraulic unit is fixedly connected to the inner side of the connecting unit in the support assembly. First guide units are symmetrically arranged on the support frame and located on both sides of the hydraulic unit. The bottom of each first guide unit is fixedly connected to the support frame, and one end of each first guide unit is fixedly connected to the inner side of the connecting unit in the support assembly. The second guide unit is disposed on the support platform and located below the connecting unit. The top of the second guide unit is fixedly connected to the bottom side of the middle part of the connecting unit, and the top of the second guide unit is slidably connected to the support platform.

8. The all-weather anti-collapse underground engineering rock drilling rig according to claim 7, characterized in that, Each first guide unit includes: A guide block, fixed to the support frame and located on the side of the hydraulic unit, has a first through hole; and A first guide rod is slidably inserted into the guide block, and one end of the first guide rod is fixedly connected to the inner side of the connecting unit; and / or The second guiding unit includes: A slider is disposed on the support platform and slidably connected to the support platform; and A sliding bracket is fixed to the slider, and the top of the sliding bracket is fixedly connected to the bottom side of the middle part of the connecting unit.

9. The all-weather anti-collapse underground engineering rock drilling rig according to claim 1, characterized in that, It also includes a buffer module disposed between the support assembly and the top plate, the buffer module comprising: A first buffer unit is disposed at the bottom of the top plate, with its top fixedly connected to the bottom of the top plate to provide longitudinal buffering force when the top plate contacts the top of the inner wall of the mine tunnel, allowing the top plate to make elastic contact with the inner wall of the mine tunnel; and The second buffer unit is disposed between the first buffer unit and the support assembly to provide lateral buffering force when the support assembly drives the top plate to move along the forward direction of the tracked machinery chassis, so as to avoid the movement of the tracked machinery chassis being obstructed.

10. The all-weather anti-collapse underground engineering rock drilling rig according to claim 9, characterized in that, The first buffer unit includes: Intermediate plates, spaced apart below the top plate; and Multiple elastic structures, wherein the multiple elastic structures are evenly distributed between the top plate and the intermediate plate; and / or The second buffer unit includes: A fixing seat is disposed between the first buffer unit and the support assembly, and the fixing seat has a groove. Multiple second guide rods are evenly arranged in the groove along the forward direction of the tracked machine chassis, and the two ends of the second guide rods are fixedly connected to the two side walls of the groove, respectively. A sliding plate, fitted onto the second guide rod, has its top fixedly connected to the bottom of the first buffer unit, and its bottom slidingly contacting the bottom wall of the groove; and The second spring is symmetrically arranged on both sides of the slide plate and respectively sleeved on the second guide rods on both sides of the slide plate, and the two ends of the second spring are in contact with the side wall of the groove and the wall of the slide plate, respectively.

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