A drilling, loading and sealing integrated machine for rock tunnel drilling and blasting method excavation

Abstract

This invention discloses an integrated drilling, loading, and sealing machine for rock tunnel drilling and blasting, comprising a drilling and sealing assembly and a sealing assembly threadedly engaged with the inner wall of the drilling and sealing assembly. A sealing mechanism is provided at the end of the sealing assembly away from the traveling direction of the drilling and sealing assembly. The drilling and sealing assembly is driven to maintain axial rotation, thereby driving it to reciprocate laterally along the sealing assembly. A loading assembly is sleeved on the outer wall of the drilling and sealing assembly. The bottom of the loading assembly has a loading groove parallel to the drilling and sealing assembly, and the loading groove is filled with explosives. The end of the loading groove near the drilling and sealing assembly is inclined and connected to it, while the end of the loading groove away from the drilling and sealing assembly is provided with a pushing mechanism. The integrated drilling, loading, and sealing machine for rock tunnel drilling and blasting provided by this invention can drill into the rock mass through the axial rotation of the drilling and sealing assembly. At this time, the loading groove and the explosive groove begin to communicate. Through the pushing mechanism, the explosives inside the loading groove can be sequentially loaded into the explosive groove.

Description

Technical Field

[0001] This invention relates to the field of tunnel drilling and blasting technology, and in particular to an integrated drilling, loading and sealing machine for rock tunnel drilling and blasting excavation. Background Technology

[0002] The drill-and-blast method, also known as the drilling-and-blasting method, is a method of excavating rock by drilling, charging explosives, and blasting. This method has evolved from the early days of manually drilling holes with chisels and hammers and detonating individual explosive charges one by one with detonators, to drilling holes with rock drilling rigs or multi-arm drilling rigs, and applying blasting techniques such as millisecond blasting, pre-splitting blasting, and smooth blasting. Before construction, the tunneling method must be selected based on geological conditions, cross-section size, support method, construction period requirements, and construction equipment and technology conditions, such as patent CN101749987A, which discloses a long-hole blasting charging device.

[0003] In actual operation, most drill-and-blast charging devices first require drilling a borehole, and then manually inserting the explosive, detonator, clay and fuse in sequence. However, the pre-drilled borehole is relatively deep, which makes it difficult to insert the explosive to the bottom. It requires manual pushing inward, and also manual insertion of the detonator and clay, which can easily lead to danger.

[0004] It is evident that the aforementioned problems with existing technologies urgently need to be addressed. Summary of the Invention

[0005] The purpose of this invention is to provide an integrated drilling, loading, and sealing machine for drilling and blasting excavation in rock tunnels, in order to solve the problems existing in the prior art. By rotating the drilling and sealing assembly axially, a hole can be drilled into the rock mass. At this time, the loading slot and the explosive slot begin to communicate. Through the pushing mechanism, the explosives inside the loading slot can be sequentially loaded into the explosive slot.

[0006] To achieve the above objectives, the present invention provides the following solution: The present invention provides an integrated drilling, loading, and sealing machine for drilling and blasting excavation in rock tunnels, comprising...

[0007] A drill-sealing assembly, comprising a drill-sealing shell, an explosive compartment communicating with the outside of the drill-sealing shell, and a drill bit at the front end of the drill-sealing shell; a drive mechanism drives the drill-sealing assembly to rotate and causes the drill-sealing assembly to reciprocate laterally along the sealing assembly; and

[0008] A plugging assembly, wherein the inner wall of the drill sealing assembly is threadedly engaged with the plugging assembly, and a plugging mechanism is provided at the end of the plugging assembly away from the direction of travel of the drill sealing assembly; stemming material and a detonator are provided on the front side of the plugging mechanism, and a lead wire is connected to the detonator; and

[0009] The explosive loading assembly is sleeved on the outer wall of the drilling and sealing assembly. The bottom of the explosive loading assembly has a loading groove, and the loading groove is filled with explosives. The end of the loading groove near the drilling and sealing assembly is inclinedly connected to the drilling and sealing assembly, and the end of the loading groove away from the drilling and sealing assembly is provided with a pushing mechanism.

[0010] Preferably, the front end of the drill seal shell is provided with drill bits arranged in a circumferential array, and a soil discharge trough arranged in a circumferential array is provided between each drill bit and the explosive trough.

[0011] Preferably, the sealing assembly includes a sealing shell, and a pushing slot is provided on the front side of the interior of the sealing shell, and a sealing mechanism is provided inside the pushing slot.

[0012] Preferably, the sealing mechanism includes a push plate, the end of the push plate away from the drill-sealing assembly is compressed with a spring, and the end of the push plate near the drill-sealing assembly is abutted with a release mechanism.

[0013] Preferably, the release mechanism includes a second stop bar, and a mechanism groove is provided on the bottom outer wall of the sealing shell. A first stop bar is provided inside the mechanism groove, and the first stop bar and the second stop bar are in contact. Both the first stop bar and the second stop bar are provided with ratchet wheels inside.

[0014] Preferably, the drill sealing assembly and the sealing assembly are kept separate to drive the first stop rod to maintain axial rotation, and the first stop rod maintains axial rotation to drive the second stop rod to maintain axial rotation in the opposite direction to drive the push slot to remain flat.

[0015] Preferably, the propellant loading assembly includes a propellant loading shell, which has a fitting slot and a filling slot. The fitting slot fits onto the outer wall of the drill sealing shell, and the filling slot is located at the bottom of the sealing assembly.

[0016] Preferably, sliders are symmetrically arranged on the end of the socket near the sealing component, and the outer wall of the drill seal housing is provided with a groove corresponding to the slider, and the slider is slidably engaged in the inside of the groove.

[0017] Preferably, a clay bar is provided at the push slot on the outer wall of the push plate away from the spring, and a detonator is inserted into the clay bar away from the outer wall of the push plate, with a lead wire wound around the outer wall of the detonator.

[0018] Preferably, a drive mechanism is provided at the end of the plugging assembly away from the drill-sealing assembly. The drive mechanism is powered by a drive power supply, the output of which is connected to the drill-sealing assembly and drives the drill-sealing assembly to rotate axially.

[0019] The present invention achieves the following beneficial technical effects compared to the prior art:

[0020] The present invention relates to an integrated drilling, loading, and sealing machine for drilling and blasting excavation in rock tunnels, comprising a drilling and sealing assembly, a sealing assembly, and a charging assembly. A drive mechanism is located at the end furthest from the drilling and sealing assembly. The drive mechanism uses an electric high-energy power supply. The drilling and sealing assembly and the sealing assembly are threadedly connected. The output end of the power supply is connected to the outer shell of the drilling and sealing assembly. Through the threaded connection between the drilling and sealing assembly and the sealing assembly, the drilling and sealing assembly can drill into the rock mass during axial rotation. The drilling and sealing assembly is inclinedly connected to a charging trough via an explosive trough. A significant portion of the explosive trough is exposed to the outside. The end of the charging trough near the drilling and sealing assembly is inclinedly connected to the drilling and sealing assembly. A pushing mechanism is located at the end furthest from the drilling and sealing assembly. The pushing mechanism consists of a hydraulic cylinder and a pushing baffle. When the drilling and sealing assembly moves into the rock mass, the pushing mechanism drives the pushing baffle axially via the hydraulic cylinder, sequentially loading explosives through the inclined surface of the charging trough into the explosive trough to complete the charging. The explosives are automatically transferred from the charging trough to the explosive trough via the pushing mechanism, and all explosives are tightly connected. The drill sealing assembly is moved to its maximum distance, causing the push mechanism to stop working and separating the explosive compartment from the loading compartment, preventing the explosive from being loaded further in. During this process, the drill sealing shell impacts the first stop rod during axial movement, causing the first stop rod to rotate clockwise around the ratchet. While the first stop rod is rotating, it simultaneously drives the second stop rod to rotate counterclockwise around the ratchet, keeping the push slot level and pushing the push plate into the explosive compartment to push the stemming material. The ratchet inside the first and second stop rods prevents automatic rotation. Finally, the loading assembly and sealing shell are slid off, leaving the drill sealing shell, along with the explosive and stemming material, inside the rock mass. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the integrated drilling, loading, and sealing machine provided in an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the side cross-section of the drilling, loading, and sealing integrated machine provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the drill-sealing assembly provided in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the structure of the loading assembly provided in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the side cross-section of the sealing assembly provided in an embodiment of the present invention;

[0027] Figure 6 This is a structural schematic diagram showing the side cross-sectional details of the sealing component provided in an embodiment of the present invention.

[0028] Key reference numerals:

[0029] 1. Drill sealing assembly; 2. Charge assembly; 3. Sealing assembly; 4. Rock mass; 5. Explosive; 6. Stemmed mud; 7. Power supply; 8. Pushing mechanism; 101. Drill sealing shell; 102. Explosive trough; 103. Drill bit; 104. Soil discharge trough; 105. Slide groove; 201. Charge shell; 202. Connecting slot; 203. Filling slot; 204. Sliding block; 301. Sealing shell; 302. Mechanism slot; 303. Pushing slot; 304. Push plate; 305. Spring; 306. First stop; 307. Second stop; 308. Ratchet. Detailed Implementation

[0030] 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.

[0031] The purpose of this invention is to provide an integrated drilling, loading, and sealing machine for drilling and blasting excavation in rock tunnels, in order to solve the problems existing in the prior art. By rotating the drilling and sealing assembly axially, a hole can be drilled into the rock mass. At this time, the loading slot and the explosive slot begin to communicate. Through the pushing mechanism, the explosives inside the loading slot can be sequentially loaded into the explosive slot.

[0032] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] like Figures 1-6 As shown, the present invention provides a drilling, loading and sealing integrated machine for drilling and blasting tunneling in rock tunnels, including a drilling and sealing assembly 1, and a sealing assembly 3 that is threadedly engaged with the inner wall of the drilling and sealing assembly 1. The sealing assembly 3 is provided with a sealing mechanism at the end away from the traveling direction of the drilling and sealing assembly 1. The drilling and sealing assembly 1 is driven to maintain axial rotation so as to drive the drilling and sealing assembly 1 to maintain transverse reciprocating motion along the sealing assembly 3.

[0034] The explosive loading assembly 2 is fitted onto the outer wall of the drill sealing assembly 1. The bottom of the explosive loading assembly 2 has a loading groove 203 that is parallel to the drill sealing assembly 1. The loading groove 203 is filled with explosive 5. The end of the loading groove 203 near the drill sealing assembly 1 is inclined and connected to the drill sealing assembly 1. The end of the loading groove 203 away from the drill sealing assembly 1 is provided with a pushing mechanism 8.

[0035] The main purpose of this drill-and-fill-seal integrated machine for drilling and blasting in rock tunnels is to allow the drill-and-fill assembly 1 to drill into the rock mass 4 during axial rotation via the threaded connection between the drill-and-fill assembly 1 and the sealing assembly 3. Furthermore, the inclined connection between the explosive trough 102 and the loading trough 203, along with the significant external exposure of the explosive trough 102, allows the explosives 5 to be automatically transferred sequentially from the loading trough 203 to the explosive trough 102 via the pushing mechanism 8 as the drill-and-fill assembly 1 moves into the rock mass 4, ensuring that all explosives 5 are tightly connected. Additionally, by moving the drill-and-fill assembly 1 to its maximum distance, the explosive trough... 102 is separated from the loading slot 203 to prevent the explosive 5 from being loaded further in. When the drill seal shell 101 moves axially, it impacts the first stop 306, thereby driving the first stop 306 to rotate clockwise around the ratchet 308. During the rotation of the first stop 306, the second stop 307 is simultaneously driven to rotate counterclockwise around the ratchet 308, keeping the inside of the push slot 303 level. This causes the push plate 304 to push the gun clay 6 into the explosive slot 102. The ratchet 308 inside the first stop 306 and the second stop 307 prevents automatic rotation.

[0036] In one embodiment, by Figure 1 , Figure 2 and Figure 3 It is known that the drilling and sealing assembly 1 includes a drilling and sealing shell 101, and the interior of the drilling and sealing shell 101 is provided with an explosive trough 102 that communicates with the outside. Three-quarters of the outer wall of the drilling and sealing shell 101 is open, so that the explosive trough 102 is in communication with the outside. The end of the drilling and sealing shell 101 away from the explosive loading assembly 2 is also provided with drill bits 103 arranged in a circumferential array. By rotating the axial direction of the drilling and sealing shell 101, the rock mass 4 can be drilled. Furthermore, a soil discharge trough 104 arranged in a circumferential array is provided between each drill bit 103 and the explosive trough 102, which can discharge the rock and soil layers from the borehole to both sides.

[0037] In one embodiment, by Figure 1 , Figure 2 , Figure 3 , Figure 5 and Figure 6 It is known that the sealing component 3 includes a sealing shell 301, and the sealing shell 301 is provided with a push slot 303 inside, and the push slot 303 is provided with a sealing mechanism that can seal the clay 6 to the end of the explosive tank 102.

[0038] In one embodiment, the sealing mechanism specifically includes a push plate 304, and a spring 305 is compressed at the end of the push plate 304 away from the drill sealing assembly 1, and a release mechanism is abutted at the end of the push plate 304 near the drill sealing assembly 1, which can drive the push plate 304 to move laterally along the push slot 303 to squeeze the drilling mud 6 and the explosive 5 into contact.

[0039] In one embodiment, the release mechanism specifically includes a second stop 307 that can maintain directional rotation, and the second stop 307 is vertically protruding from the push slot 303, thereby abutting against the push plate 304 to prevent the spring 305 from being released under normal circumstances. The bottom outer wall of the sealing shell 301 is also provided with a mechanism slot 302, which is also provided with a first stop 306 that can maintain directional rotation. The bottom of the first stop 306 and the second stop 307 are kept in contact, and both the first stop 306 and the second stop 307 are provided with ratchet 308 inside, which can drive the two to rotate in opposite directions.

[0040] In one embodiment, when the drill seal shell 101 slides toward the rock mass 4, the end of the explosive groove 102 can hook the first stop 306, thereby driving the first stop 306 to rotate, thereby driving the second stop 307 to rotate in the opposite direction, so that the push groove 303 is kept flat, and the spring 305 is released, which can drive the drilling mud 6 to squeeze and contact the explosive 5.

[0041] In the technical solution provided by this invention, by Figure 1 , Figure 2 , Figure 3 and Figure 4 It is known that the charge assembly 2 includes a charge housing 201, and the charge housing 201 has a vertically parallel fitting slot 202 and a filling slot 203. The fitting slot 202 fits onto the outer wall of the drill sealing housing 101, driving the filling slot 203 to always be located at the bottom of the drill sealing assembly 1. When the drill sealing assembly 1 moves laterally, the explosive 5 can be sequentially filled into the interior of the explosive slot 102. The drill sealing assembly 1 always maintains lateral movement until the explosive slot 102 is separated from the filling slot 203, preventing the explosive 5 from being continuously filled inward.

[0042] In one embodiment, a slider 204 is symmetrically provided at the end of the socket 202 near the sealing component 3, and a groove 105 is provided on the outer wall of the drill sealing shell 101 corresponding to the slider 204. When the explosive groove 102 is separated from the filling groove 203, the slider 204 can be driven to slide and engage inside the groove 105 to prevent the explosive component 2 from falling off.

[0043] In one embodiment, the drilling sealing assembly 1 is detached from the outer wall of the sealing assembly 3 and is covered with rock mass 4. By rotating the drilling sealing assembly 1, the drilling sealing shell 101 is extended into the interior of the rock mass 4, thereby bringing each explosive 5 into the interior of the rock mass 4. The outer wall of the push plate 304 away from the spring 305 is also provided with drilling mud 6, and the outer wall of the drilling mud 6 away from the push plate 304 is also connected with detonators and fuses. When the explosive trough 102 is separated from the loading trough 203, the end of the explosive trough 102 can hook the first stop bar 306, driving the drilling mud 6 to come into close contact with the explosive 5.

[0044] In one embodiment, the end of the sealing component 3 away from the drilling and sealing component 1 is also provided with a driving power supply 7, and the output end of the driving power supply 7 is connected to the drilling and sealing component 1, which can drive the drilling and sealing component 1 to rotate axially, thereby drilling into the rock mass 4.

[0045] The working principle of the drilling, loading, and sealing integrated machine for rock tunnel drilling and blasting excavation of the present invention is as follows:

[0046] First, a large amount of explosives 5 are loaded into the loading slot 203 in sequence. Then, the loading assembly 2 is aligned with the drill bit 103 and pressed against the outer wall of the rock mass 4.

[0047] Then turn on the drive power supply 7 to drive the drill sealing assembly 1 to rotate axially, thereby drilling into the interior of the rock mass 4.

[0048] At this time, the filling trough 203 and the explosive trough 102 begin to communicate, and through the pushing mechanism 8, the explosives 5 inside the filling trough 203 can be sequentially filled into the explosive trough 102.

[0049] As the drill seal shell 101 continues to slide toward the rock mass 4 until the filling groove 203 separates from the explosive groove 102, to prevent the explosive 5 from being continuously filled in, the end of the explosive groove 102 can hook the first stop 306, thereby driving the first stop 306 to rotate, thereby driving the second stop 307 to rotate in the opposite direction, so that the push groove 303 is kept flat, and the spring 305 is released, which can drive the drilling mud 6, detonator and fuse to squeeze and contact the explosive 5;

[0050] Finally, simply slide off the explosive charge assembly 2 and the sealing shell 301, leaving the drill sealing shell 101, along with the explosive 5 and the drilling mud 6, inside the rock mass 4.

[0051] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

[0052] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A drilling, loading, and sealing integrated machine for drilling and blasting excavation in rock tunnels, characterized in that: include A drill sealing assembly includes a drill sealing shell, an explosive compartment communicating with the outside is provided inside the drill sealing shell, and a drill bit is provided at the front end of the drill sealing shell; a drive mechanism drives the drill sealing assembly to rotate and drives the drill sealing assembly to perform lateral reciprocating motion along the sealing assembly; as well as A plugging assembly, wherein the inner wall of the drill sealing assembly is threadedly engaged with the plugging assembly, a plugging mechanism is provided at the end of the plugging assembly away from the direction of travel of the drill sealing assembly, and stemming material and a detonator are provided on the front side of the plugging mechanism, with a lead wire connected to the detonator; and The explosive loading assembly is sleeved on the outer wall of the drill sealing assembly. A loading groove is provided at the bottom of the explosive loading assembly. Explosives are filled inside the loading groove. The end of the loading groove near the drill sealing assembly is inclined and connected to the drill sealing assembly. A pushing mechanism is provided at the end of the loading groove away from the drill sealing assembly. The pushing mechanism consists of a hydraulic cylinder and a pushing baffle. After drilling is completed, the pushing baffle is driven axially by the hydraulic cylinder to load the explosives sequentially through the inclined surface of the loading groove into the explosive groove to complete the loading process.

2. The drilling, loading, and sealing integrated machine for rock tunnel drilling and blasting excavation according to claim 1, characterized in that: The front end of the drill seal shell is provided with drill bits arranged in a circumferential array, and a soil discharge channel arranged in a circumferential array is opened between each drill bit and the explosive tank.

3. The drilling, loading, and sealing integrated machine for rock tunnel drilling and blasting excavation as described in claim 1, characterized in that: The sealing assembly includes a sealing shell, and a push slot is provided on the front side of the interior of the sealing shell. A sealing mechanism is provided inside the push slot.

4. The drilling, loading, and sealing integrated machine for rock tunnel drilling and blasting excavation according to claim 3, characterized in that: The sealing mechanism includes a push plate, the end of the push plate away from the drilling and sealing assembly is compressed with a spring, and the end of the push plate near the drilling and sealing assembly is abutted with a release mechanism.

5. The drilling, loading, and sealing integrated machine for rock tunnel drilling and blasting excavation according to claim 4, characterized in that: The release mechanism includes a second stop bar. A mechanism groove is provided on the bottom outer wall of the sealing shell. A first stop bar is provided inside the mechanism groove. The first stop bar and the second stop bar are in contact. Both the first stop bar and the second stop bar are provided with ratchet wheels. The bottom of the first stop bar is used to contact the drill seal shell.

6. The drilling, loading, and sealing integrated machine for rock tunnel drilling and blasting excavation according to claim 5, characterized in that: The sealing assembly is equipped with a drive mechanism at its end away from the drilling and sealing assembly. The drive mechanism uses a drive power supply, the output end of which is connected to the drilling and sealing assembly and drives the drilling and sealing assembly to rotate axially. The drilling and sealing assembly is driven to maintain axial rotation so as to drive the drilling and sealing assembly to maintain lateral reciprocating motion and separation along the sealing assembly. When the drilling and sealing shell slides into the rock body, the end of the explosive slot can hook the first stop bar to drive the first stop bar to rotate. When the first stop bar rotates, it collides with and drives the second stop bar, and through a ratchet, drives the second stop bar to maintain axial rotation in the opposite direction so as to push the slot opening to keep it flat.

7. The drilling, loading, and sealing integrated machine for rock tunnel drilling and blasting excavation according to claim 1, characterized in that: The propellant loading assembly includes a propellant loading shell, which has a fitting slot and a filling slot. The fitting slot fits onto the outer wall of the drill sealing shell, and the filling slot is located at the bottom of the sealing assembly.

8. The drilling, loading, and sealing integrated machine for rock tunnel drilling and blasting excavation according to claim 7, characterized in that: The end of the socket near the sealing component is symmetrically provided with sliders, and the outer wall of the drill seal housing is provided with a groove corresponding to the slider, and the slider is slidably engaged in the inside of the groove.

9. The drilling, loading, and sealing integrated machine for rock tunnel drilling and blasting excavation according to claim 4, characterized in that: A clay bar is provided at the push slot on the outer wall of the push plate away from the spring. A detonator is inserted into the clay bar away from the outer wall of the push plate, and a lead wire is wound around the outer wall of the detonator.

10. The drilling, loading, and sealing integrated machine for rock tunnel drilling and blasting excavation according to claim 1, characterized in that: The plugging assembly is provided with a drive mechanism at the end away from the drill-seal assembly. The drive mechanism is an electric drive power supply. The drill-seal assembly and the plugging assembly are connected by a thread. The output end of the drive power supply is connected to the outer shell of the drill-seal assembly. The drive mechanism is used to drive the drill-seal assembly to rotate axially and drill into the rock mass.

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