Foam generation tunneling impact anchor rod construction drilling machine

Abstract

The invention provides a foam generation tunneling impact anchor rod construction drilling machine. The drilling machine comprises a construction drill bit assembly; a foam generating assembly; the foam mixer is used for mixing alkali liquor and air to obtain foam; the energy supply assembly is connected with the foam generation assembly; the energy supply assembly is connected with the construction drill bit assembly; the energy supply assembly is used for driving the construction drill bit assembly to complete hammering operation. The energy supply assembly is used for driving the foam generation assembly to generate foam. According to the device provided by the invention, a foam generation system and an impact tunneling technology are integrated, so that the drilling machine aims to fundamentally optimize the tunneling process, not only are drilling instability and collapse risks caused by foundation weakness effectively resisted, but also the construction efficiency is remarkably improved by utilizing an efficient impact drilling mechanism, slurry wall protection is performed by utilizing sodium carbonate foam, and the drilling efficiency is improved. And potential safety accidents in foundation pit construction are greatly reduced. And powerful technical support and demonstration are provided for related fields for promoting efficient, safe and green development of foundation pit engineering.

Description

Technical Field

[0001] The invention belongs to the technical field of building construction, and more specifically, relates to a foam generation excavation impact anchor construction drilling machine. Background Art

[0002] In the construction of some tunnels, bolt excavation operations face extremely harsh conditions and complex and changeable geological environments. These geological environments include but are not limited to fault fracture zones, soft rock deformation zones, high ground stress zones, and sudden water and mud surges. These geological conditions place high demands on tunneling equipment, and traditional tunneling equipment often suffers from problems such as insufficient rock breaking capacity, severe equipment wear, and increased energy consumption when facing hard rock formations or fracture zones, resulting in slow construction progress and low efficiency.

[0003] In order to meet these challenges, it is necessary to continuously develop and improve tunneling equipment to improve its adaptability and operating efficiency under complex geological conditions. Summary of the invention

[0004] The purpose of the present invention is to provide a foam generation excavation impact anchor construction drilling rig, aiming to solve the technical problem of low operating efficiency under complex geological conditions in the existing construction process.

[0005] To achieve the above object, the technical solution adopted by the present invention is: to provide a foam generation excavation impact anchor construction drilling rig, comprising:

[0006] Construction drill bit assembly;

[0007] Foam generating component; used to mix alkali solution and air to obtain foam;

[0008] An energy supply component is connected to the foam generating component; the energy supply component is connected to the construction drill bit component; the energy supply component is used to drive the construction drill bit component to complete the hammering operation; the energy supply component is used to drive the foam generating component to generate foam.

[0009] Preferably, when the lower shell of the gas bin moves away from the first part, the reset sealing structure is reset, and the volume of the alkali solution storage space increases to an initial state.

[0010] Preferably, the energy supply component comprises:

[0011] Drilling rig motor;

[0012] Transmission structure; connected to the drilling rig motor;

[0013] The bearing structure is connected to the transmission structure; the bearing structure includes a movable part; under the transmission of the transmission structure, the movable part generates an up and down reciprocating motion;

[0014] A cylinder connected to the movable part;

[0015] A hammer, disposed adjacent to the cylinder;

[0016] firing pin;

[0017] Under the action of reciprocating motion, by controlling the compression and release of air between the cylinder and the hammer, a strong driving force is achieved on the hammer, thereby causing it to hammer the firing pin.

[0018] Preferably, the bearing structure:

[0019] A bearing body, drivingly connected to the transmission structure;

[0020] The outer ring of the bearing is connected to the bearing body; the outer ring of the bearing is connected to the cylinder;

[0021] When the bearing body rotates, the bearing outer ring reciprocates up and down relative to the bearing body.

[0022] Preferably, the transmission structure comprises:

[0023] A driving gear meshing with the drilling rig motor;

[0024] The driven gear is arranged perpendicularly to the driving gear, and the driven gear is meshed with the driving gear; the driven gear is transmission-connected with the bearing body.

[0025] Preferably, the construction drill bit assembly comprises:

[0026] Drill bit body;

[0027] Auxiliary excavation blades are arranged on the drill bit body, and a plurality of auxiliary excavation blades are arranged along the circumference of the drill bit body;

[0028] A main excavation blade is arranged on the drill bit body, and a plurality of the main excavation blades are arranged along the circumference of the drill bit body;

[0029] A channel structure is provided on the drill bit body; the channel structure is used to realize one or more functions of collecting and discharging mud chips generated by cutting, injecting foam, and increasing pressure;

[0030] The cutting drill spike is arranged on the auxiliary excavation blade and / or the main excavation blade.

[0031] Preferably, the energy supply assembly performs impact mode operation and rotation mode operation together.

[0032] Preferably, the channel structure comprises:

[0033] A positive pressure channel is provided on the drill bit body;

[0034] A mud and cuttings back pressure adsorption channel is provided on the drill bit body;

[0035] The foam filling channel is arranged on the drill bit body.

[0036] Preferably, the foam generating assembly comprises:

[0037] Drive structure;

[0038] The gas bin upper shell includes a first part and a second part which are connected to each other;

[0039] The gas bin inner shell is arranged in the gas bin upper shell; one end of the gas bin inner shell contacts the inner wall surface of the first part, and the other end is a connecting end; the first part and the internal space of the gas bin inner shell constitute an alkali solution storage space;

[0040] A reset sealing structure is arranged in the alkali solution storage space; one end of the reset sealing structure is in sealing contact with the inner wall surface of the first part, and the other end extends out of the connection end to be a movable connection end;

[0041] The gas bin lower shell has one end in sealing contact with the inner wall surface of the second part; the gas bin lower shell is in contact with the gas bin inner shell;

[0042] The outer wall surface of the gas bin inner shell, the gas bin lower shell and the second part cooperate to form a gas storage space;

[0043] When the driving structure is forced to drive the lower shell of the gas bin to move toward the first part away from the second part, the gas storage space allows the gas to leak out; the reset sealing structure is deformed, and the alkali liquid storage space allows the alkali liquid to leak out; the gas and the alkali liquid are mixed.

[0044] Preferably, when the lower shell of the gas bin moves away from the first part, the reset sealing structure is reset, and the volume of the alkali solution storage space increases to an initial state.

[0045] The beneficial effect of the foam generation excavation impact anchor construction drilling rig provided by the present invention is that: compared with the prior art, by integrating the foam generation system and the impact excavation technology, the drilling rig provided by the present invention aims to fundamentally optimize the excavation process, not only effectively resisting the risk of drilling instability and collapse caused by the weakness of the foundation, but also using the efficient impact drilling mechanism to significantly improve the construction efficiency, using soda ash foam for mud wall protection, and greatly reducing the potential safety accidents in foundation pit construction. It provides strong technical support and demonstration for related fields to promote the efficient, safe and green development of foundation pit engineering. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0047] Figure 1 A schematic structural diagram of a foam generating assembly used in a foam generating tunneling impact anchor construction drilling rig provided by an embodiment of the present invention; Figure 2 A structural schematic diagram of a column valve structure provided by an embodiment of the present invention; Figure 3 A schematic structural diagram of a ball valve structure provided by an embodiment of the present invention; Figure 4 A schematic diagram of the structure of a gas bin inner shell provided by an embodiment of the present invention; Figure 5 A schematic diagram of the structure of a gas bin upper shell provided by an embodiment of the present invention; Figure 6 A schematic diagram of the structure of a gas bin lower shell provided by an embodiment of the present invention; Figure 7 A schematic diagram of a driving structure provided by an embodiment of the present invention; Figure 8 A schematic diagram of the structure of a gas chamber spring tongue structure provided by an embodiment of the present invention; Fig. 9 A schematic diagram of the structure of a firing pin provided by an embodiment of the present invention; Fig.10 A schematic diagram of the structure of a hammer provided by an embodiment of the present invention; Fig.11 A schematic diagram of the structure of a cylinder provided by an embodiment of the present invention; Fig.12 A schematic diagram of the structure of a Tesla valve provided in an embodiment of the present invention; Fig.13 A structural schematic diagram of a drill bit connecting shaft sleeve provided by an embodiment of the present invention; Fig.14 A schematic diagram of the structure of a fixing clip provided by an embodiment of the present invention; Fig.15 A schematic diagram of a structure of an energy supply component provided in an embodiment of the present invention Figure 1 ; Fig.16 A schematic diagram of a structure of an energy supply component provided in an embodiment of the present invention Figure 2 ; Fig.17A schematic structural diagram of an anchor drilling device provided in an embodiment of the present invention. Fig.18 A schematic structural diagram of a construction drill bit assembly provided in an embodiment of the present invention. Fig.19 An impact mode operation and a rotation mode operation of an energy supply component provided in an embodiment of the present invention Figure 1 . Fig. 20 An impact mode operation and a rotation mode operation of an energy supply component provided in an embodiment of the present invention Figure 2 . DETAILED DESCRIPTION

[0048] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0049] Please also read Figures 1 to 18 Now, a foam-generating tunneling impact anchor construction drill provided by the present invention is described. A foam-generating tunneling impact anchor construction drill comprises: a construction drill bit assembly 1, a foam-generating assembly 3 and an energy supply assembly 2, wherein the foam-generating assembly 3 is used to mix alkali liquid and air to obtain foam; the energy supply assembly 2 is connected to the foam-generating assembly 3; the energy supply assembly 2 is connected to the construction drill bit assembly 1; the energy supply assembly 2 is used to drive the construction drill bit assembly 1 to complete the hammering operation; the energy supply assembly 2 is used to drive the foam-generating assembly 3 to generate foam

[0050] As a specific implementation of the embodiment of the present invention, the construction drill bit assembly includes: a drill bit body 1; an auxiliary excavation blade 102; a main excavation blade 101; a channel structure and a cutting drill spike 106. The auxiliary excavation blade 102 is arranged on the drill bit body 1, and multiple auxiliary excavation blades 102 are arranged along the circumference of the drill bit body 1; the main excavation blade 101 is arranged on the drill bit body 1, and multiple main excavation blades 101 are arranged along the circumference of the drill bit body 1; the channel structure is arranged on the drill bit body 1; the channel structure is used to realize one or more functions of collecting and discharging mud chips generated by cutting, injecting foam, and increasing pressure; the cutting drill spike 106 is arranged on the auxiliary excavation blade 102 and / or the main excavation blade 101.

[0051] In this embodiment, the main tunneling blade 101 and the auxiliary tunneling blade 102 are centrally symmetrical around the center of the drill bit body 1 .

[0052] In this embodiment, the channel structure includes: a positive pressure channel 103, a mud and debris back pressure adsorption channel 104 and a foam filling channel 105, the positive pressure channel 103 is arranged on the drill bit body 1; the mud and debris back pressure adsorption channel 104 is arranged on the drill bit body 1; the foam filling channel 105 is arranged on the drill bit body 1.

[0053] The main excavation blade 101 and the auxiliary excavation blade 102 work together to enhance the penetration and cutting efficiency of complex geological structures. The positive pressure channel 103 is used to facilitate the smooth progress of the cutting process. The mud chip back pressure adsorption channel 104 effectively collects and discharges the mud chips generated by cutting to keep the working environment clean. The introduction of the foam filling channel 105 provides the drill bit with the dual functions of lubrication and cooling. At the same time, the injection of soda ash foam also helps to improve the quality of the cutting surface. The equipment of the most cutting drill nail 106 further enhances the cutting ability and stability of the drill bit, ensuring efficient and accurate excavation operations under extreme geological conditions.

[0054] As a specific implementation of the embodiment of the present invention, the energy supply component 2 includes: a drilling motor 201, a transmission structure, a bearing structure, a cylinder 207, a hammer 208 and a striker 2010, the transmission structure is connected to the drilling motor 201; the bearing structure is connected to the transmission structure; the bearing structure includes a movable part; under the transmission of the transmission structure, the movable part generates an up and down reciprocating motion; the cylinder 207 is connected to the movable part; the hammer 208 is arranged adjacent to the cylinder 207;

[0055] Under the action of reciprocating motion, by controlling the compression and release of air between the cylinder 207 and the hammer 208, a strong driving force is achieved on the hammer 208, thereby causing it to accurately hammer the striker 2010.

[0056] In this embodiment, the transmission structure includes: a driving gear 202 and a driven gear 203, the driving gear 202 is meshed with the drilling rig motor 201; the driven gear 203 is vertically arranged with the driving gear 202, and the driven gear 203 is meshed with the driving gear 202;

[0057] In this embodiment, the bearing structure includes a bearing body 204 and a bearing outer ring 205. The bearing body 204 is transmission-connected to the driven gear 203. The bearing outer ring 205 (i.e., the movable part) is connected to the bearing body 204. When the bearing body 204 rotates, the bearing outer ring 205 reciprocates up and down relative to the bearing body 204.

[0058] The operation process of the energy supply component 2 in the impact mode: the drilling rig motor 201 serves as the core power source, driving the driving gear 202, and then driving the driven gear 203 to rotate, thus constructing the initial link of power transmission. The driven gear 203 transmits the rotational power to the bearing body 204, and the bearing body 204 drives the bearing outer ring 205 to reciprocate up and down during the rotation process. This movement mode creates conditions for the subsequent impact action. The cylinder 207 tightly connected to the bearing outer ring 205, under the action of reciprocating motion, achieves a strong driving force on the hammer 208 by precisely controlling the air compression and release between the cylinder 207 and the hammer 208, thereby causing it to accurately hammer the striker 2010. In this embodiment, the striker 2010 is connected to the hammer 208 through the Tesla valve 209. Tesla valve 209, as a key gas control device, ensures the unidirectionality of gas flow, effectively guides part of the gas to exert reverse thrust on striker 2010 from the bottom, helps it return to its original position quickly, and provides a strong guarantee for the start of the next hammering cycle. Finally, striker 2010 efficiently transfers the impact energy to drill connecting shaft 2011, driving drill body 1 to complete the expected hammering operation.

[0059] The operation process of the rotation mode of the energy supply component 2: the drilling rig motor 201 is used as the initial power source. The driving gear 202 is driven to rotate, and then the driven gear 203 meshing with it is driven to rotate synchronously. This step provides a stable power input for the subsequent transmission chain. As the driven gear 203 rotates, its power is further transmitted to the transmission main shaft 2012. Specifically, the driven gear 203 is welded to the transmission main shaft 2012. When the power is transmitted from the driving gear 202, the driven gear 203 and the transmission main shaft 2012 both rotate at the same time. At the same time, the power is also indirectly transmitted to the transmission secondary shaft 2013 and the drill bit connecting shaft 2011. As the end point of power transmission, the drill bit connecting shaft 2011 is directly responsible for converting the power from the previous stage transmission into the rotational motion of the excavation drill bit body 1. Through precise matching and tightening, the excavation drill bit is firmly mounted on the drill bit connecting shaft, ensuring the continuity and stability of power transmission.

[0060] More specifically, the impact mode operation and the rotation mode operation of the energy supply component are carried out together. Fig.19 and Fig. 20, wherein the transmission secondary shaft 2013 is provided with main and secondary shaft meshing teeth 20131, transmission meshing teeth 20132, and core drilling meshing teeth 20133, and the main and secondary shaft meshing teeth 20131 and the transmission meshing teeth 20132 are connected by a conveyor belt 20134. The core drilling transmission shaft 2015 is provided with a core drilling transmission shaft spring 20151, and the core drilling transmission shaft spring 20151 is connected with the core drilling and transmission secondary shaft meshing teeth 20152. When the power is transmitted from the transmission main shaft 2012 to the transmission secondary shaft 2013, the power is transmitted from the main and secondary shaft meshing teeth 20131 to the transmission meshing teeth 20132 via the conveyor belt 20134, and the power is converted from horizontal rotation to vertical drive through the transmission meshing teeth 20132, so that the power is transmitted from the transmission secondary shaft and core drilling meshing teeth 20133 to the core drilling and transmission secondary shaft meshing teeth 20152, completing the rotation function of the energy supply component. When impact occurs, the energy supply assembly introduces a core drill transmission shaft spring 20151 as a buffer element. The introduction of the spring significantly improves the system's anti-impact capability, so that under impact, the meshing between the transmission countershaft and the core drill meshing teeth 20133 and between the core drill and the transmission countershaft meshing teeth 20152 can be kept stable, thereby ensuring the continuity and reliability of power transmission and effectively preventing power interruption or transmission failure caused by impact.

[0061] As a specific implementation of the embodiment of the present invention, please refer to Figures 1 to 18 The foam generating assembly 3 comprises: a driving structure, a gas bin upper shell 301, a gas bin inner shell 309, a reset sealing structure, a gas bin lower shell 3010 and a gas bin spring tongue structure, wherein the gas bin upper shell 301 comprises a first part and a second part which are connected; the gas bin inner shell 309 is arranged in the gas bin upper shell 301; one end of the gas bin inner shell 309 contacts the inner wall surface of the first part, and the other end is a connecting end; the internal space of the first part and the gas bin inner shell 309 constitutes an alkali liquid storage space; the reset sealing structure is arranged in the alkali liquid storage space; one end of the reset sealing structure contacts the first part; the internal space of the gas bin inner shell 309 constitutes an alkali liquid storage space; the reset sealing structure is arranged in the alkali liquid storage space; one end of the reset sealing structure contacts the first part; the internal space of the gas bin inner shell 309 constitutes an alkali liquid storage space; the reset sealing structure The gas storage space is formed by the outer wall of the gas storage tank and the outer wall of the gas storage tank is sealed in contact with the inner wall of the second part, and the other end of the gas storage tank extends out of the connection end as a movable connection end; one end of the gas storage tank lower shell 3010 is sealed in contact with the inner wall of the second part; the gas storage tank lower shell 3010 is in contact with the gas storage tank inner shell 309; the outer wall of the gas storage tank inner shell 309, the gas storage space and the second part cooperate to form a gas storage space; when the driving structure is driven by force to drive the gas storage tank lower shell 3010 to move in the direction away from the second part toward the first part, the gas storage space allows gas to leak out; the reset sealing structure is deformed, and the alkali liquid storage space allows alkali liquid to leak out; the gas and the alkali liquid are mixed. When the gas storage tank lower shell 3010 moves away from the first part, the reset sealing structure is reset, and the volume of the alkali liquid storage space increases to the initial state. The reset sealing structure is in sealed contact with the contact end of the gas storage tank inner shell 309.

[0062] In this embodiment, please refer to Figures 1 to 18The reset sealing structure includes: a ball valve structure, a column valve structure 304 and a reset body 306. The ball valve structure is arranged in the alkali liquid storage space, one end of the ball valve structure is in sealing contact with the alkali liquid storage space, and the other end is a connecting end; the column valve structure 304 is arranged in the alkali liquid storage space, and one end of the column valve structure 304 is movably connected to the connecting end of the ball valve structure; one end of the reset body 306 is connected to the ball valve structure, and the other end is connected to the column valve structure 304.

[0063] In this embodiment, the ball valve structure includes: a ball valve body 303 and a ball 302, the ball valve body 303 includes a hole body portion and a sliding connection portion connected to the hole body portion; the sliding connection portion is provided with a sliding groove adapted to the column valve structure 304; the hole body portion is provided with a through hole connected to the sliding groove; the ball 302 is located at one end of the hole body portion away from the sliding connection portion, and the ball 302 is adapted to the through hole.

[0064] In this embodiment, the reset body 306 includes a spring, which is sleeved outside the ball valve body 303 and / or the column valve structure 304, one end of the spring is connected to the ball valve body 303, and the other end is connected to the column valve structure 304. Exemplarily, the spring is sleeved outside the ball valve body 303 and the column valve structure 304, one end of the spring is connected to the ball valve body 303, and the other end is connected to the column valve structure 304.

[0065] In this embodiment, please refer to Figures 1 to 18 , the gas bin lower shell 3010 contacts the gas bin inner shell 309 through the gas bin spring tongue structure. The gas bin spring tongue structure is connected to the gas bin lower shell 3010; the gas bin spring tongue structure contacts the gas bin inner shell 309; the outer wall of the gas bin inner shell 309, the gas bin spring tongue structure, the gas bin lower shell 3010 and the second part cooperate to form a gas storage space; when the driving structure is forced to drive the gas bin lower shell 3010 to move in the direction away from the second part toward the first part, the gas bin spring tongue structure is forced, and the gas storage space allows gas to leak out; the gas bin spring tongue structure drives the reset sealing structure to deform, and the alkali liquid storage space allows the alkali liquid to leak out; the gas and the alkali liquid are mixed. The gas bin spring tongue structure includes: a spring tongue structure body 305, a connector 3051 and a deformation body 3052, wherein the spring tongue structure body 305 is connected to the gas bin lower shell 3010; the connector 3051 is connected to the spring tongue structure body 305; the connector 3051 is in contact with the gas bin lower shell 3010; the deformation body 3052 is connected to the spring tongue structure body 305, a part of the spring tongue structure body 305 is in contact with the gas bin lower shell 3010; a part of the spring tongue structure body 305 is in contact with the gas bin inner shell 309. In this embodiment, a receiving groove adapted to the spring tongue structure body 305 is provided on the gas bin lower shell 3010.

[0066] In this embodiment, please refer to Figures 1 to 18The driving structure includes: a paddle transmission member 308 and a reciprocating paddle 307. The reciprocating paddle 307 is connected to the paddle transmission member 308; when the paddle transmission member 308 is subjected to force, the reciprocating paddle 307 is driven to rotate in one direction, thereby driving the gas tank lower shell 3010 to reciprocate up and down.

[0067] The lye foam generation process is as follows:

[0068] Alkali liquid introduction: A channel is provided on the upper part of the gas bin upper shell 301. Alkali liquid is introduced from the ground surface into the alkali liquid storage space through the channel on the upper part of the gas bin upper shell 301, ready to be mixed with the gas released later.

[0069] Reciprocating paddle movement: the paddle transmission member 308 starts to work under force, driving the reciprocating paddle 307 to rotate in one direction. The rotation of the reciprocating paddle 307 drives the gas bin lower shell 3010 connected thereto to reciprocate up and down, which is the key driving step of the entire foam generation process.

[0070] Gas bin changes: When the gas bin lower shell 3010 moves upward, the volume of the gas storage space decreases, and the pressure in the gas storage space increases accordingly. The increased pressure acts on the gas bin spring tongue structure, especially the connector 3051, which pushes it open, allowing the gas in the gas bin to leak out. At the same time, the deformation body 3052 remains sealed due to the atmospheric pressure to prevent external gas from entering.

[0071] Changes in the alkali liquid warehouse: As the gas warehouse lower shell 3010 rises, the volume of the alkali liquid storage space also decreases accordingly, resulting in an increase in the pressure in the alkali liquid warehouse. The increased pressure compresses the reset body 306 and leaves a gap between the column valve structure 304 and the gas warehouse inner shell 309, allowing the alkali liquid to mix with the gas leaking from the gas warehouse. In this process, the sphere 302 is lifted up under the action of the air pressure, further promoting the full mixing of the alkali liquid and the air.

[0072] Foam generation: After the above steps, the alkali solution and air are fully mixed inside the device to generate foam.

[0073] Reset process: When the reciprocating paddle 307 rotates through a certain angle, the gas bin lower shell 3010 loses the active upward power source. At this time, under the thrust of the reset body 306, the volume of the alkali liquid storage space begins to increase and the pressure gradually decreases. As the pressure decreases, the column valve structure 304, the ball 302 and other components return to their initial state. Under the action of gravity, the alkali liquid re-flows into the alkali liquid bin to prepare for the next foam production cycle.

[0074] The foam generating assembly 3 provided by the present invention effectively solves the technical problems encountered in the anchor excavation process through its unique foam generating assembly and the superior performance of the soda ash foam, and effectively improves the construction efficiency, operation quality and environmental protection level.

[0075] Foamy soda ash liquid has the following effects during the construction process: Improve drilling efficiency: Soda ash foam can better cover the well wall and fully contact with acidic substances, thereby more effectively neutralizing acidic substances and maintaining the acid-base balance of the drilling fluid. Increase cleaning ability: Soda ash foam has a large surface area and can better carry water-soluble substances, increase the cleaning ability of mud, and reduce formation pollution. Promote the hydration reaction of mud bentonite: Soda ash foam can promote the hydration reaction of mud bentonite, increase the stability of mud, and facilitate the smooth progress of drilling projects. Harden the well wall: Soda ash foam can promote the hardening effect of lime, form a layer of hardened well wall, improve the strength and stability of the well wall, and reduce the risk of well wall collapse.

[0076] The present invention provides a foam generation excavation impact anchor construction drilling rig. Compared with the prior art, the drilling rig provided by the present invention aims to fundamentally optimize the excavation process by integrating the foam generation system and the impact excavation technology. It not only effectively resists the risk of drilling instability and collapse caused by the weakness of the foundation, but also significantly improves the construction efficiency by using an efficient impact drilling mechanism, and uses soda ash foam for mud wall protection, which greatly reduces the hidden dangers of safety accidents in foundation pit construction. It provides strong technical support and demonstration for related fields that promote the efficient, safe and green development of foundation pit engineering. The energy supply component 2 integrates the powerful impact force with the efficient rotary cutting mechanism, so that during the excavation process, it can not only use the impact force to directly break the rock layer and penetrate the hard geological structure, but also can use the precise control of rotary cutting to achieve the rapid formation and precise adjustment of the excavation path. It reduces the operation cycle and effectively guarantees the operation quality, providing strong technical support and solutions for anchor construction in the engineering field.

[0077] The present invention provides a foam generation excavation impact anchor construction drill, which cleverly integrates the foam generation system with the excavation impact anchor construction drill, thereby improving the efficiency and stability during the construction process. Specifically, the present invention significantly improves the effect of anchor excavation operations through the following aspects: by increasing the pH value of the mud, the alkali solution can also increase the colloid rate and stability of the mud and reduce the water loss of the mud. This helps to form a stable mud wall during the drilling process, prevent the hole wall from collapsing, and achieve the purpose of improving the drilling conditions.

[0078] First, the present invention significantly improves construction efficiency. The present invention integrates the dual high-efficiency operation modes of impact and rotary cutting through the energy supply component 2, combines the powerful impact force and the efficient rotary cutting mechanism, and directly responds to challenging geological conditions such as hard rock formations and broken zones, and can quickly break the rock formations and achieve rapid excavation. At the same time, the built-in foam generation system immediately injects soda ash foaming agent, which effectively improves the lubrication and cooling conditions during the drilling process, reduces the wear and replacement frequency of the drill bit, and further improves the construction efficiency.

[0079] Secondly, the present invention has achieved a significant improvement in the quality of operations. The introduction of soda ash foam not only optimizes the mud performance, but also enhances the mud's adsorption and discharge efficiency of drill cuttings. This allows the impurities and waste cuttings generated during the drilling process to be more effectively removed from the borehole, maintaining the cleanliness and stability of the borehole. At the same time, the hardening effect of the foam forms a protective layer on the well wall, which enhances the strength and durability of the well wall and reduces the risk of well wall collapse. These improvements together ensure the high-quality completion of the drilling operation.

[0080] Furthermore, the present invention also focuses on environmental protection and the health and safety of construction workers. The use of soda ash foam effectively reduces the generation and diffusion of dust during the drilling process, creating a safer and healthier working environment for on-site workers. In addition, the cleaning ability of the foam reduces stratum pollution, which is beneficial to environmental protection and sustainable development.

[0081] In summary, the present invention has achieved significant improvements in bolt construction efficiency, operation quality, environmental protection and other aspects through its innovative integrated design and unique foam generation technology. This invention not only solves the problems encountered by traditional bolt excavation equipment under complex geological conditions, but also provides strong support for technological progress and industrial upgrading in the fields of coal mining and tunnel construction. Its practicality and innovation have been fully verified, and it has broad application prospects and promotion value.

[0082] The construction steps of this foam generation tunneling impact anchor construction drilling rig include:

[0083] After all components are prefabricated in the factory, the appropriate drilling location is selected in advance at the required location of the construction site according to the design requirements and the actual situation on site. The anchor drilling device is firmly installed at the designated location to ensure that it will not move or tilt during the drilling process.

[0084] After the drilling is completed, high-pressure air or water is used to clean the rock powder, debris and other debris remaining in the hole. And use measuring tools to check whether the hole depth and hole diameter meet the design requirements, and then continue the subsequent anchor placement operation.

[0085] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A foam generation excavation impact anchor construction drilling rig, characterized in that: include: Construction drill bit assembly (1); A foam generating component (3) is used to mix the alkali solution with air to obtain foam; The energy supply component (2) is connected to the foam generating component (3); the energy supply component (2) is connected to the construction drill bit component (1); the energy supply component (2) is used to drive the construction drill bit component (1) to complete the hammering operation; the energy supply component (2) is used to drive the foam generating component (3) to generate foam.

2. A foam generation excavation impact anchor construction drilling rig as claimed in claim 1, characterized in that: The energy supply component (2) comprises: Drilling machine motor (201); A transmission structure; in transmission connection with the drilling rig motor (201); The bearing structure is connected to the transmission structure; the bearing structure includes a movable part; under the transmission of the transmission structure, the movable part generates an up and down reciprocating motion; A cylinder (207) connected to the movable part; A hammer (208) is disposed adjacent to the cylinder (207); Strike Pin (2010); Under the action of reciprocating motion, by controlling the compression and release of air between the cylinder (207) and the hammer (208), a strong driving force is achieved on the hammer (208), thereby causing it to hammer the firing pin (2010).

3. A foam generation excavation impact anchor construction drilling rig as claimed in claim 2, characterized in that: The bearing structure: A bearing body (204) is transmission-connected to the transmission structure; The outer ring of the bearing (205) is connected to the bearing body (204); the outer ring of the bearing (205) is connected to the cylinder (207); When the bearing body (204) rotates, the bearing outer ring (205) performs up and down reciprocating motion relative to the bearing body (204).

4. A foam generation excavation impact anchor construction drilling rig as claimed in claim 3, characterized in that: The transmission structure comprises: A driving gear (202) meshing with the drilling rig motor (201); The driven gear (203) is arranged perpendicular to the driving gear (202), and the driven gear (203) is meshed with the driving gear (202); the driven gear (203) is transmission-connected to the bearing body (204).

5. A foam generation excavation impact anchor construction drilling rig as claimed in claim 4, characterized in that: The energy supply assembly (2) is rotatably connected to the construction drill bit assembly (1).

6. A foam generation excavation impact anchor construction drilling rig as claimed in claim 5, characterized in that: The construction drill bit assembly comprises: Drill bit body (1); Auxiliary excavation blades (102) are arranged on the drill bit body (1), and a plurality of auxiliary excavation blades (102) are arranged along the circumference of the drill bit body (1); A main tunneling blade (101) is arranged on the drill bit body (1), and a plurality of the main tunneling blades (101) are arranged along the circumference of the drill bit body (1); A channel structure is arranged on the drill bit body (1); the channel structure is used to realize one or more functions of collecting and discharging mud chips generated by cutting, injecting foam, and increasing pressure; A cutting drill spike (106) is arranged on the auxiliary tunneling blade (102) and / or the main tunneling blade (101).

7. A foam generation excavation impact anchor construction drilling rig as claimed in claim 6, characterized in that: The energy supply components jointly perform impact mode operation and rotation mode operation.

8. A foam generation excavation impact anchor construction drilling rig as claimed in claim 7, characterized in that: The channel structure comprises: A positive pressure channel (103) is provided on the drill bit body (1); A mud and debris back-pressure adsorption channel (104) is provided on the drill bit body (1); The foam filling channel (105) is arranged on the drill bit body (1).

9. A foam generation excavation impact anchor construction drilling rig as claimed in claim 8, characterized in that: The foam generating component (3) comprises: Drive structure; The gas bin upper shell (301) comprises a first part and a second part which are connected to each other; The gas bin inner shell (309) is arranged in the gas bin upper shell (301); one end of the gas bin inner shell (309) is in contact with the inner wall surface of the first part, and the other end is a connecting end; the internal space of the first part and the gas bin inner shell (309) constitutes an alkali liquid storage space; A reset sealing structure is arranged in the alkali solution storage space; one end of the reset sealing structure is in sealing contact with the inner wall surface of the first part, and the other end extends out of the connection end to be a movable connection end; The gas bin lower shell (3010) has one end in sealing contact with the inner wall surface of the second part; the gas bin lower shell (3010) is in contact with the gas bin inner shell (309); The outer wall surface of the gas bin inner shell (309), the gas bin lower shell (3010) and the second part cooperate to form a gas storage space; When the driving structure is forced to drive the gas bin lower shell (3010) to move toward the first part away from the second part, the gas storage space allows the gas to leak out; the reset sealing structure is deformed, and the alkali liquid storage space allows the alkali liquid to leak out; the gas and the alkali liquid are mixed.

10. An anchor drilling device using a foam generating assembly as claimed in claim 9, characterized in that: When the gas bin lower shell (3010) moves away from the first part, the reset sealing structure is reset, and the volume of the alkali solution storage space increases to an initial state.

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