Propulsion device for a rock drill and a rock drilling jumbo

Abstract

The application discloses a propelling device for a rock drill and a rock drilling jumbo, relates to the technical field of drilling rig equipment, and comprises a rock drill body, a propelling device arranged outside the rock drill body, a drill bit body in transmission connection with the propelling device, and a water injection hole body arranged on the inner wall of the drill bit body, and further comprises: a blockage detection mechanism arranged on the inner wall of the drill bit body; and an adjusting and expanding mechanism arranged on the outer wall of the water injection hole body, wherein the propelling device can automatically detect the water pressure change inside the water injection hole body through the blockage detection mechanism and the adjusting and expanding mechanism; the blockage detection mechanism can be triggered in the first time when the water pressure inside the water injection hole body changes, and drives the adjusting plate to move to form an expanding or shrinking state, the diameter of the water injection hole body can be dynamically changed from the outside, the stone block clamped inside the adjusting plate can be washed away by water flow, and the drill bit body can be prevented from being overheated due to the blockage of the water injection hole, so that the equipment is more stable during work.

Description

Technical Field

[0001] This invention relates to the field of drilling equipment technology, specifically to a propulsion device and a drilling rig for a rock drill. Background Technology

[0002] The propulsion device and drilling rig used for rock drills are rock drilling equipment used in tunnel and underground engineering construction using the drill-and-blast method. They can move and support multiple rock drills to perform drilling operations simultaneously.

[0003] The working principle of a rock drill is to install the propulsion device on the drill arm guide rail, move it to the work site through the traveling mechanism, then the drill arm positions the rock drill at the position where drilling is required, the propeller provides axial thrust to the rock drill, so that the drill bit of the rock drill comes into contact with the rock, and then the rock drill breaks the rock by impact and rotation.

[0004] When the rock drill is in operation, the drill bit sprays high-pressure water from the hole through the water jet hole to reduce dust and cool the drill bit. The water flow can also be used to remove the mud, sand and rock debris that have been drilled out.

[0005] When a rock drill is working, the drill bit breaks rocks, producing rock fragments of varying sizes. Some of these fragments are close in diameter to the water jet hole, often getting stuck inside. This causes blockages, preventing water from flowing properly. The drill bit temperature rises rapidly, reducing its cutting efficiency. Furthermore, rock dust cannot be effectively suppressed, and operators inhale air containing large amounts of rock dust, negatively impacting their health.

[0006] To address the aforementioned issues, there is an urgent need for innovative designs based on the existing propulsion devices and drilling rigs used in rock drills. Summary of the Invention

[0007] The present invention addresses the problem of overly simplistic solutions in existing technologies by providing a significantly different solution. Specifically, the present invention aims to provide a propulsion device and a drilling rig for rock drills to solve the problem mentioned in the background art where rock cuttings during drill operation may cause blockage of water jet holes.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a propulsion device and a rock drilling rig for a rock drill, comprising a rock drill body, a propulsion device disposed outside the rock drill body, a drill bit body connected to the propulsion device in a transmission manner, a water jet hole body formed on the inner wall of the drill bit body, and further comprising:

[0009] A blockage detection mechanism installed on the inner wall of the drill bit body;

[0010] An adjustment and expansion mechanism is installed on the outer wall of the water jet hole body;

[0011] The inner wall of the drill bit body is provided with a cavity;

[0012] The blockage detection mechanism includes a pressure plate movably disposed in the drill bit body cavity, a connecting rod disposed on one side of the bottom of the outer wall of the pressure plate, a driven wheel movably disposed on one side of the connecting rod, and a linkage wheel movably disposed on one side of the driven wheel;

[0013] The adjustment and expansion mechanism includes a turntable movably disposed on the outer wall of the water spray hole body, a slider movably disposed on the outer wall of the turntable, and an adjustment plate connected to one end of the slider.

[0014] Preferably, a telescopic rod is provided at the bottom of the outer wall of the pressure plate, and a spring is provided around the outer wall of the telescopic rod;

[0015] A rack is provided at one end of the connecting rod, a drive wheel is movably provided on one side of the rack, and a rotating rod is movably connected to the outer wall of the drive wheel.

[0016] Preferably, the outer wall of the turntable is provided with an arc-shaped groove, and the outer wall of the slider is provided with a slide rod;

[0017] The diameter of the slide bar is matched with the diameter of the groove on the turntable.

[0018] Preferably, the bottom of the outer wall of the pressure plate is circular, and the top of the outer wall of the pressure plate is arc-shaped;

[0019] The top of the outer wall of the pressure plate is adapted to the inner wall of the water spray hole body.

[0020] Preferably, the three-dimensional view of the adjustment plate is arc-shaped, and multiple adjustment plates are provided, all of which have the same diameter.

[0021] Preferably, the inner wall of the drill bit body is further provided with a circular cavity, and the linkage wheel is disposed in the circular cavity of the drill bit body;

[0022] The linkage wheel is movably connected to the turntable.

[0023] Preferably, the slide bar is movably disposed within an arc-shaped groove on the outer wall of the turntable, and the three-dimensional view of the slide bar is cylindrical.

[0024] Preferably, the tooth grooves of the rack mesh with the tooth grooves of the drive wheel, and the rack and the drive wheel form a transmission connection.

[0025] Preferably, the tooth groove of the driven wheel meshes with the tooth groove of the driven wheel, and the turntable and the driven wheel form a transmission connection through the driven wheel.

[0026] Preferably, one end of the rotating rod is movably connected to the driving wheel, and the other end of the rotating rod is movably connected to the driven wheel.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. This invention utilizes a blockage detection mechanism and an adjustment and expansion mechanism to ensure that when the water jet body becomes blocked, the internal water pressure increases. The water then needs an outlet, and the movable pressure plate is pushed downwards by the water pressure, triggering subsequent mechanisms to automatically detect changes in the internal water pressure of the water jet body. This automatic detection method allows the blockage detection mechanism to be triggered immediately when the internal water pressure changes, causing the adjustment plate to move in an "expansion" and "contraction" state. This allows for a "dynamic change" in the diameter of the water jet body from the outside, enabling the water flow to wash away any stones stuck inside the adjustment plate. This method prevents the drill bit from overheating due to water jet blockage, providing stable protection for the drill bit, reducing drill bit maintenance costs, and making the equipment more stable during operation.

[0029] 2. After the stones are washed away by the water flow, the water pressure inside the spray nozzle returns to normal. The telescopic rod and spring then drive the pressure plate to reset. After the pressure plate resets, the connecting rod also resets. The rack then drives the drive wheel, rotating rod, driven wheel, linkage wheel, and turntable to reset. After the turntable resets, the adjusting plate also closes synchronously. After the adjusting plate closes, its diameter is the same as the diameter of the spray nozzle, so that the water sprayed from the spray nozzle continues to maintain a high pressure, thus not affecting the efficiency of the water flow. This allows the equipment to continue discharging sewage under high water pressure. Because the problem of spray nozzle blockage is solved, the dust generated when the equipment is opened can be further reduced, ensuring the safety of the operators. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0031] Figure 2 This is a schematic diagram of the drill bit body, the adjusting expansion mechanism, and the water outlet of the present invention.

[0032] Figure 3 This is a cross-sectional view of the internal structure of the drill bit body, the blockage detection mechanism, and the adjustment and expansion mechanism of the present invention.

[0033] Figure 4 This is a cross-sectional side view of the drill bit body, the blockage detection mechanism, and the adjustment and expansion mechanism of the present invention.

[0034] Figure 5 This is a partial structural schematic diagram of the blockage detection mechanism and the adjustment and expansion mechanism of the present invention;

[0035] Figure 6This is a partial structural schematic diagram of the blockage detection mechanism and the adjustment and expansion mechanism of the present invention;

[0036] Figure 7 This is a schematic diagram of the driven wheel, the driving wheel, and the turntable of the present invention;

[0037] Figure 8 This is a schematic diagram illustrating the motion principle and disassembled structure of the adjustment and expansion mechanism of the present invention;

[0038] Figure 9 This is a schematic diagram of the driven wheel and the driven wheel of the present invention;

[0039] Figure 10 This is a schematic diagram of the structure of the pressure plate, connecting rod, and rack of the present invention;

[0040] Figure 11 This is a schematic diagram of the structure of the adjusting plate and the sliding rod of the present invention.

[0041] In the diagram: 1. Rock drill body; 2. Propulsion device; 3. Drill bit body; 4. Blockage detection mechanism; 401. Pressure plate; 402. Telescopic rod; 403. Spring; 404. Connecting rod; 405. Rack; 406. Drive wheel; 407. Rotating rod; 408. Driven wheel; 409. Linkage wheel; 5. Adjustment and expansion mechanism; 501. Turntable; 502. Slider; 503. Adjustment plate; 504. Slide rod; 6. Water jet body. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] Please see Figures 1 to 11 The present invention provides a technical solution: a propulsion device and a rock drilling rig for a rock drill, comprising a rock drill body 1, a propulsion device 2 disposed outside the rock drill body 1, a drill bit body 3 connected to the propulsion device 2 in a transmission manner, a water jet body 6 formed on the inner wall of the drill bit body 3, and further comprising:

[0044] Blockage detection mechanism 4 is installed on the inner wall of drill bit body 3;

[0045] An adjustment and expansion mechanism 5 is installed on the outer wall of the water spray hole body 6;

[0046] The inner wall of the drill bit body 3 has a cavity;

[0047] The blockage detection mechanism 4 includes a pressure plate 401 movably disposed in the cavity of the drill bit body 3. A connecting rod 404 is disposed on one side of the bottom of the outer wall of the pressure plate 401. A driven wheel 408 is movably disposed on one side of the connecting rod 404. A linkage wheel 409 is movably disposed on one side of the driven wheel 408.

[0048] The adjustment and expansion mechanism 5 includes a turntable 501 movably disposed on the outer wall of the spray hole body 6, a slider 502 movably disposed on the outer wall of the turntable 501, and an adjustment plate 503 connected to one end of the slider 502.

[0049] In this embodiment, the pressure plate 401 will slide downward along the cavity of the inner wall of the drill bit body 3 due to the increased water pressure. When the pressure plate 401 slides downward, the connecting rod 404 provided on one side of the bottom of its outer wall will also move downward synchronously. When the connecting rod 404 moves, the rack 405 at one end will drive the driving wheel 406 to rotate. When the driving wheel 406 rotates, it will drive the rotating rod 407 to rotate. When the rotating rod 407 rotates, it will drive the driven wheel 408 to rotate. When the driven wheel 408 rotates, it will drive the linkage wheel 409 to rotate synchronously. Since the linkage wheel 409... 09 is movably connected to turntable 501, so turntable 501 will also rotate synchronously with linkage wheel 409 (when the water nozzle body 6 is blocked, the water pressure inside it will become stronger due to the blockage. At this time, the water needs to find a "vent". The pressure plate 401, which is movably set, will be pushed down by the water pressure, which will trigger the subsequent mechanism to form an "automatic detection" structure for the water nozzle body 6. This "automatic detection" method can make the water pressure inside the water nozzle body 6 "monitored" in real time by the blockage detection mechanism 4, and the blockage can be judged based on the water pressure).

[0050] A telescopic rod 402 is provided at the bottom of the outer wall of the pressure plate 401, and a spring 403 is arranged around the outer wall of the telescopic rod 402;

[0051] A rack 405 is provided at one end of the connecting rod 404, and a drive wheel 406 is movably provided on one side of the rack 405. A rotating rod 407 is movably connected to the outer wall of the drive wheel 406.

[0052] In this embodiment, after the stones are washed away by the water flow, the water pressure inside the spray hole body 6 returns to normal. The telescopic rod 402 and the spring 403 will drive the pressure plate 401 to reset. After the pressure plate 401 resets, the connecting rod 404 will also reset. The rack 405 will drive the drive wheel 406, the rotating rod 407, the driven wheel 408, the linkage wheel 409, and the turntable 501 to reset. After the turntable 501 resets, the adjusting plate 503 will also close synchronously. After the adjusting plate 503 closes, its diameter is the same as the diameter of the spray hole body 6, so that the water sprayed from the spray hole body 6 will continue to maintain a high pressure state. (The telescopic rod 402 and the spring 403 are reset components. When the spray hole body 6 does not change, the water pressure inside the spray hole body 6 is directly connected to the outlet. When the water inside the spray hole body 6 is blocked, the water pressure becomes stronger and the pressure plate 401 is forced to move.)

[0053] The outer wall of the turntable 501 is provided with an arc groove, and the outer wall of the slider 502 is provided with a slide rod 504;

[0054] The diameter of the slide bar 504 is matched with the diameter of the groove in the turntable 501.

[0055] In this embodiment, because the outer wall of the turntable 501 is provided with an arc-shaped groove, and the diameter of the groove is compatible with that of the slide rod 504 provided on the outer wall of the slider 502, the slide rod 504 will be displaced by the groove of the turntable 501. At this time, the slide rod 504 will slide, and the slider 502 will slide synchronously along the arc-shaped groove provided on the outer wall of the turntable 501. At this time, the adjusting plate 503 will be driven by the slider 502 to present a synchronous outward expansion motion, thereby causing it to be stuck in the adjusting plate 503. The stones in the part are washed away by the water flow (the arc-shaped groove opened on the turntable 501 can drive the slide rod 504 to move along the groove, so that the slider 502 moves in a straight line along the arc-shaped groove of the turntable 501, thereby making the adjusting plate 503 form an "expansion" and "shrinking" state, which can make the diameter of the water spray hole body 6 "dynamically change" from the outside. This dynamic change actually only happens in an instant, because once the fragments are washed away, the pressure plate 401 will quickly reset after the water pressure of the water spray hole body 6 returns to normal).

[0056] The bottom of the outer wall of the pressure plate 401 is circular, and the top of the outer wall of the pressure plate 401 is arc-shaped;

[0057] The top of the outer wall of the pressure plate 401 is adapted to the inner wall of the water spray hole body 6.

[0058] In this embodiment, when the pressure plate 401 slides downward, the connecting rod 404 provided on one side of the bottom of its outer wall will also move downward synchronously. When the connecting rod 404 moves, the rack 405 at one end will drive the driving wheel 406 to rotate. When the driving wheel 406 rotates, it will drive the rotating rod 407 to rotate. When the rotating rod 407 rotates, it will drive the driven wheel 408 to rotate. When the driven wheel 408 rotates, it will drive the linkage wheel 409 to rotate synchronously. Since the linkage wheel 409 is movably connected to the turntable 501, the turntable 501 will also rotate synchronously with the linkage wheel 409. (The shape of the pressure plate 401 is set so that it is the same as the inner wall of the water spray hole body 6. This will not only not affect the water flow, but also form a principle similar to a "piston" being pushed by water pressure after the water pressure increases, thus causing displacement.)

[0059] The three-dimensional view of the adjustment plate 503 is arc-shaped. Multiple adjustment plates 503 are provided, and all adjustment plates 503 have the same diameter.

[0060] In this embodiment, since the linkage wheel 409 is movably connected to the turntable 501, the turntable 501 will also rotate synchronously with the linkage wheel 409. Since the outer wall of the turntable 501 is provided with an arc-shaped groove, and the diameter of the groove is matched with the diameter of the slide rod 504 provided on the outer wall of the slider 502, the slide rod 504 will be moved by the groove of the turntable 501. At this time, the slide rod 504 will slide. When the slide rod 504 slides, the slider 502 will slide synchronously along the arc-shaped groove provided on the outer wall of the turntable 501. At this time, the adjusting plate 503 will be driven by the slider 502 to present a synchronous outward expansion motion state (the adjusting plate 503 will form a "spray hole" with the same diameter as the spray hole body 6 in the default state, and because the adjusting plate 503 covers the outside of the spray hole body 6, the gravel will be stuck in the adjusting plate 503 which can "dynamically change").

[0061] The inner wall of the drill bit body 3 is also provided with a circular cavity, and the linkage wheel 409 is disposed in the circular cavity of the drill bit body 3.

[0062] The linkage wheel 409 is connected to the turntable 501.

[0063] In this embodiment, the linkage wheel 409 is movably connected to the turntable 501, so the turntable 501 will also rotate synchronously with the linkage wheel 409. Since the outer wall of the turntable 501 is provided with an arc-shaped groove, and the diameter of the groove is matched with the diameter of the slide rod 504 provided on the outer wall of the slider 502, the slide rod 504 will be moved by the groove of the turntable 501. At this time, the slide rod 504 will slide. When the slide rod 504 slides, the slider 502 will slide synchronously along the arc-shaped groove provided on the outer wall of the turntable 501 (the linkage wheel 409 can rotate in the circular cavity of the drill bit body 3).

[0064] The slide bar 504 is movably disposed in the arc-shaped groove on the outer wall of the turntable 501, and the three-dimensional view of the slide bar 504 is cylindrical.

[0065] In this embodiment, rock fragments of varying sizes are generated during drilling on the drill bit body 3. These fragments may become stuck on the outer wall of the water jet body 6 because some of their diameters are close to the diameter of the water jet body 6. Since the outer wall of the water jet body 6 is provided with adjusting plates 503 (the default state of the adjusting plates 503 is that they fit together to form a circular hole with the same diameter as the water jet body 6, and the adjusting plates 503 cover the outside of the water jet body 6), these fragments may become stuck in the inner wall of the adjusting plates 503, causing blockage of the water jet body 6. When the water jet body 6 is blocked, the water flow continues, increasing the water pressure inside the water jet body 6. When the slide bar 504 slides, the slider 502 slides synchronously along the arc-shaped groove on the outer wall of the turntable 501. At this time, the adjusting plates 503 are driven by the slider 502 to exhibit a synchronous outward expansion motion (the slider 502 can slide along the arc-shaped groove on the outer wall of the turntable 501, exhibiting a reciprocating linear motion, such as...). Figure 8 and Figure 11 As shown, the other end of the slider 504 is in a movable latching state with the other side of the outer wall of the turntable 501, so there is no need to worry about the slider 502 falling off during movement.

[0066] The tooth groove of rack 405 meshes with the tooth groove of drive wheel 406, and rack 405 and drive wheel 406 form a transmission connection.

[0067] In this embodiment, when the connecting rod 404 moves, the rack 405 at one end drives the driving wheel 406 to rotate. When the driving wheel 406 rotates, it drives the rotating rod 407 to rotate. When the rotating rod 407 rotates, it drives the driven wheel 408 to rotate. When the driven wheel 408 rotates, it drives the linkage wheel 409 to rotate synchronously. Since the linkage wheel 409 is movably connected to the turntable 501, the turntable 501 will also rotate synchronously with the linkage wheel 409. Because the outer wall of the turntable 501 is provided with an arc-shaped groove, and the diameter of the groove is matched with the diameter of the sliding rod 504 provided on the outer wall of the slider 502, the sliding rod 504 will be displaced by the groove of the turntable 501. At this time, the sliding rod 504 will slide. When the sliding rod 504 slides, the slider 502 will slide synchronously along the arc-shaped groove provided on the outer wall of the turntable 501. At this time, the adjusting plate 503 will be driven by the slider 502 to present a synchronous outward expansion motion.

[0068] The tooth groove of the driven wheel 408 meshes with the tooth groove of the driven wheel 409, and the turntable 501 and the driven wheel 409 form a transmission connection through the driven wheel 408.

[0069] In this embodiment, when the driven wheel 408 rotates, it drives the linkage wheel 409 to rotate synchronously. Since the linkage wheel 409 is movably connected to the turntable 501, the turntable 501 will also rotate synchronously with the linkage wheel 409. Because the outer wall of the turntable 501 is provided with an arc-shaped groove, and the diameter of the groove is matched with the diameter of the slide rod 504 provided on the outer wall of the slider 502, the slide rod 504 will be displaced by the groove of the turntable 501. When the connecting rod 404 moves, the rack 405 at one end will drive the driving wheel 406 to rotate. When the driving wheel 406 rotates, it will drive the rotating rod 407 to rotate. When the rotating rod 407 rotates, it will drive the driven wheel 408 to rotate. When the driven wheel 408 rotates, it will drive the linkage wheel 409 to rotate synchronously. Since the linkage wheel 409 is movably connected to the turntable 501.

[0070] One end of the rotating rod 407 is movably connected to the driving wheel 406, and the other end of the rotating rod 407 is movably connected to the driven wheel 408.

[0071] In this embodiment, because the outer wall of the water jet body 6 is provided with an adjustment plate 503 (the default state of the adjustment plate 503 is that they fit together to form a circular hole with the same diameter as the water jet body 6, and the adjustment plate 503 covers the outside of the water jet body 6), these fragments will get stuck in the inner wall of the adjustment plate 503, causing the water jet body 6 to become blocked. When the water jet body 6 is blocked, the water flow is still spraying out, which will increase the water pressure inside the water jet body 6. After the pressure plate 401 is reset, the connecting rod 404 will also be reset, and the rack 405 will drive the drive wheel 406, the rotating rod 407, the driven wheel 408, the linkage wheel 409 and the turntable 501 to be reset. After the turntable 501 is reset, the adjustment plate 503 will also close synchronously. After the adjustment plate 503 is closed, its diameter is the same as the diameter of the water jet body 6, so that the water sprayed out by the water jet body 6 will continue to maintain a high pressure state.

[0072] Working principle: When using the propulsion device and drilling rig of this rock drill, the operator first drives the rock drill body 1 to control the propulsion device 2 and the drill bit body 3 to drill a hole in the rock wall. At this time, the drill bit body 3 will spray water through the water jet body 6. When the drill bit body 3 is drilling, it will produce rock fragments of different sizes. These fragments may get stuck on the outer wall of the water jet body 6 because some of their diameters are close to the diameter of the water jet body 6. Because the outer wall of the water jet body 6 is equipped with an adjustment plate 503 (adjustable... In the default state, the adjustment plates 503 will fit together to form a circular hole with the same diameter as the water jet body 6, and the adjustment plate 503 covers the outside of the water jet body 6. These fragments will get stuck in the inner wall of the adjustment plate 503, causing the water jet body 6 to become blocked. When the water jet body 6 is blocked, the water flow is still spraying out, which will increase the water pressure inside the water jet body 6. At this time, the pressure plate 401 will be pressed down along the cavity of the inner wall of the drill bit body 3 by the water flow due to the increased water pressure.

[0073] Secondly, when the pressure plate 401 slides downward, the connecting rod 404 on one side of the bottom of its outer wall also moves downward synchronously. When the connecting rod 404 moves, the rack 405 at one end drives the drive wheel 406 to rotate. The rotation of the drive wheel 406 drives the rotating rod 407 to rotate, which in turn drives the driven wheel 408 to rotate. The rotation of the driven wheel 408 then drives the linkage wheel 409 to rotate synchronously. Since the linkage wheel 409 is movably connected to the turntable 501, the turntable 501 also forms a synchronous rotation with the linkage wheel 409. As the turntable rotates, the outer wall of the turntable 501 is provided with an arc-shaped groove, and the diameter of the groove is matched with that of the sliding rod 504 on the outer wall of the slider 502. Therefore, the sliding rod 504 will be moved by the groove of the turntable 501 and slide. When the sliding rod 504 slides, the slider 502 will slide synchronously along the arc-shaped groove on the outer wall of the turntable 501. At this time, the adjusting plate 503 will be driven by the slider 502 to present a synchronous outward expansion motion, thereby causing the stones stuck inside the adjusting plate 503 to be washed away by the water flow.

[0074] Finally, after the stones are washed away by the water flow, the water pressure inside the spray hole body 6 returns to normal. The telescopic rod 402 and the spring 403 will then drive the pressure plate 401 to reset. After the pressure plate 401 resets, the connecting rod 404 will also reset. The rack 405 will then drive the drive wheel 406, the rotating rod 407, the driven wheel 408, the linkage wheel 409, and the turntable 501 to reset. After the turntable 501 resets, the adjusting plate 503 will also close synchronously. After the adjusting plate 503 closes, its diameter is the same as the diameter of the spray hole body 6, so that the water sprayed from the spray hole body 6 will continue to maintain a high pressure, thus not affecting the efficiency of the water flow. The invention is now complete.

[0075] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A propulsion device and a rock drilling rig for a rock drill, comprising a rock drill body (1), a propulsion device (2) disposed outside the rock drill body (1), a drill bit body (3) connected to the propulsion device (2) in a transmission manner, and a water jet body (6) formed on the inner wall of the drill bit body (3), characterized in that, Also includes: A blockage detection mechanism (4) is installed on the inner wall of the drill bit body (3); Adjustment and expansion mechanism (5) is provided on the outer wall of the water jet body (6); The inner wall of the drill bit body (3) is provided with a cavity; The blockage detection mechanism (4) includes a pressure plate (401) movably disposed in the cavity of the drill bit body (3). A connecting rod (404) is provided on one side of the bottom of the outer wall of the pressure plate (401). A driven wheel (408) is movably disposed on one side of the connecting rod (404). A linkage wheel (409) is movably disposed on one side of the driven wheel (408). The adjustment and expansion mechanism (5) includes a turntable (501) movably disposed on the outer wall of the spray hole body (6), and a slider (502) movably disposed on the outer wall of the turntable (501), and an adjustment plate (503) is connected to one end of the slider (502). A telescopic rod (402) is provided at the bottom of the outer wall of the pressure plate (401), and a spring (403) is provided around the outer wall of the telescopic rod (402). A rack (405) is provided at one end of the connecting rod (404), a drive wheel (406) is movably provided on one side of the rack (405), and a rotating rod (407) is movably connected to the outer wall of the drive wheel (406). The outer wall of the turntable (501) is provided with an arc-shaped groove, and the outer wall of the slider (502) is provided with a slide rod (504); the diameter of the slide rod (504) is adapted to the diameter of the groove on the turntable (501); The tooth groove of the rack (405) meshes with the tooth groove of the drive wheel (406), and the rack (405) and the drive wheel (406) form a transmission connection; The tooth groove of the driven wheel (408) meshes with the tooth groove of the linkage wheel (409), and the turntable (501) and the linkage wheel (409) form a transmission connection through the driven wheel (408).

2. The propulsion device and drilling rig for a rock drill according to claim 1, characterized in that: The bottom of the outer wall of the pressure plate (401) is circular, and the top of the outer wall of the pressure plate (401) is arc-shaped; The top of the outer wall of the pressure plate (401) is adapted to the inner wall of the water jet body (6).

3. The propulsion device and drilling rig for a rock drill according to claim 1, characterized in that: The three-dimensional view of the adjustment plate (503) is arc-shaped, and multiple adjustment plates (503) are provided, all of which have the same diameter.

4. The propulsion device and drilling rig for a rock drill according to claim 1, characterized in that: The inner wall of the drill bit body (3) is also provided with a circular cavity, and the linkage wheel (409) is disposed in the circular cavity of the drill bit body (3); The linkage wheel (409) is movably connected to the turntable (501).

5. The propulsion device and drilling rig for a rock drill according to claim 3, characterized in that: The slide bar (504) is movably disposed in the arc-shaped groove on the outer wall of the turntable (501), and the three-dimensional view of the slide bar (504) is cylindrical.

6. The propulsion device and drilling rig for a rock drill according to claim 1, characterized in that: One end of the rotating rod (407) is movably connected to the driving wheel (406), and the other end of the rotating rod (407) is movably connected to the driven wheel (408).

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