A reaming head for a shaft drill

Abstract

The present application relates to the technical field of reaming cutter, and particularly provides a slag cleaning type reaming cutter for a shaft drilling machine, which comprises a base frame, a cutter body installed on the base frame, a first cavity formed in the middle part of the cutter body, and a first slag inlet arranged on the upper end surface of the first cavity; cutter arms arranged in a ring array around the central axis of the cutter body, a second slag inlet arranged on the upper end surface of each cutter arm, the second slag inlet being communicated with the first cavity to form a first channel; a crushing wheel installed on the cutter body near the first slag inlet and on the cutter arm near the second slag inlet; a spiral stacking conveying mechanism arranged in the first cavity along the axis of the cutter body and extending to a slag outlet of the cutter body; and a rotary power mechanism installed on the base frame and connected with the cutter body to drive the cutter body to rotate. The present application effectively solves the problem that the reaming cutter in the prior art does not have a slag cleaning function.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of reaming cutter head, and particularly provides a slag cleaning type reaming cutter head for a shaft drilling machine. BACKGROUND

[0002] The shaft drilling machine is a large mechanical equipment for vertical well drilling, and is widely applied in the fields of coal mining and the like. When working, site leveling and installation of basic equipment are firstly performed, and then vertical well drilling operation is performed. After drilling into the underground coal roadway (i.e. drilling through the tunnel between the ground and the underground), the drilling head is manually replaced by a reaming cutter head with a larger diameter. Then, reverse reaming is performed upwardly by the rotation of the reaming cutter head until the ground. In this way, a shaft with a larger diameter can be obtained.

[0003] In the process of reverse reaming of the existing reaming cutter head, a large amount of rock and soil will fall into the coal roadway, which needs to be intermittently cleaned by manual or cleaning vehicle, thereby hindering the continuous operation of the coal roadway. For example, the utility model patent with the application number 201420728311.5 and the name "Reverse Drilling Machine Reaming Cutter Head" only has the advantages of good stability and detachability, and does not have the slag cleaning function.

[0004] Therefore, it is of great significance to design a reaming cutter head with a slag cleaning function. SUMMARY

[0005] The present application provides a slag cleaning type reaming cutter head for a shaft drilling machine, which solves the problem that the existing reaming cutter head does not have a slag cleaning function.

[0006] The present application provides a slag cleaning type reaming cutter head for a shaft drilling machine, which includes:

[0007] a base frame;

[0008] a cutter head body installed on the base frame, a first cavity being formed in the middle part of the cutter head body, and a first slag inlet being formed in the upper end surface of the first cavity;

[0009] a plurality of cutter arm portions, which are annularly arranged around the central axis of the cutter head body, connected to the cutter head body, and provided with a second slag inlet in the upper end surface thereof, the second slag inlet being communicated with the first cavity and forming a first channel;

[0010] a plurality of crushing wheels, which are installed on the cutter head body near the first slag inlet and installed on the cutter arm portions near the second slag inlet;

[0011] a spiral stacking conveying mechanism, which is rotatably arranged in the first cavity along the axis of the cutter head body and extends to the slag outlet of the cutter head body.

[0012] A rotating power mechanism is installed on the base frame and is drivingly connected to the cutter head body for driving the cutter head body to rotate.

[0013] According to the application, the clear residue reaming cutter head for the shaft drill includes:

[0014] A first rotating shaft is coaxially and rotatably installed in the first cavity and extends to the residue outlet;

[0015] Stacked spiral blades are arranged on the outer wall of the first rotating shaft in the axial direction of the first rotating shaft;

[0016] The residue outlet is formed by the pipe opening of the connecting pipe rotatably arranged on the cutter head body in the axial direction; one end of the first rotating shaft close to the residue outlet is provided with a first assembly structure for assembly connection with the stacked spiral transmission shaft in the drill rod of the shaft drill, thereby forming synchronous rotation.

[0017] According to the application, the first assembly structure includes a cross-shaped slot formed in the end of the first rotating shaft.

[0018] According to the application, the base frame is formed with a second cavity, the first rotating shaft extends through the first cavity and extends to the second cavity and is rotatably connected to the bottom of the second cavity;

[0019] The rotating power mechanism includes:

[0020] An inner gear ring is arranged in the second cavity and is fixedly connected to the inner wall of the second cavity;

[0021] A sun gear is coaxially installed on the first rotating shaft and is located in the second cavity;

[0022] A plurality of planet gears are arranged in the vicinity of the sun gear in a ring array with the axis of the first rotating shaft as the rotation axis and are rotatably connected to the base frame;

[0023] The planet gears are respectively engaged with the sun gear and the inner gear ring, and the diameter of the planet gears is greater than the diameter of the sun gear.

[0024] According to the application, the first channel is formed with a slope towards the first cavity;

[0025] Further comprising:

[0026] A rolling cutter assembly is rotatably arranged in the first channel for conveying residue soil to the first cavity;

[0027] A driving mechanism is in driving connection with the rolling cutter assembly and used for driving the rolling cutter assembly to rotate.

[0028] According to the application, the driving mechanism comprises:

[0029] A first conical gear is coaxially fixedly installed on the first rotating shaft and below the first cavity;

[0030] A second conical gear is in engagement with the first conical gear and has a plurality of teeth;

[0031] A universal shaft assembly is coaxially connected to one end of the second conical gear and coaxially connected to the other end of the rolling cutter assembly, and used for driving the rolling cutter assembly to rotate.

[0032] According to the application, the cutter arm is a telescopic arm, and the diameter changing mechanism is connected with the telescopic arm and used for driving each telescopic arm to extend or retract.

[0033] According to the application, the diameter changing mechanism comprises:

[0034] A plurality of sliding frames are connected with the movable parts of the cutter arms respectively and in sliding connection with the base frame;

[0035] A diameter changing unit is coaxially arranged on the base frame;

[0036] A plurality of push rods are connected with the sliding frames at one end and connected with the diameter changing unit at the other end;

[0037] A locking mechanism is connected with the push rods and used for locking the push rods after the push rods are moved to target positions;

[0038] The diameter changing unit is used for synchronously extending or retracting the plurality of push rods.

[0039] According to the application, the diameter changing unit comprises:

[0040] A threaded disc is coaxially and rotatably installed on the base frame and has a first threaded surface;

[0041] A plurality of threaded sliding blocks are arranged in an annular array around the axis of the threaded disc, each of the threaded sliding blocks has a second threaded surface, and the second threaded surface is in engagement with the first threaded surface;

[0042] A guide disc is coaxially fixedly connected with the base frame and has a plurality of guide grooves radially arranged on the guide disc;

[0043] The threaded sliding block is embedded in the guide groove and can slide in the guide groove.

[0044] The reaming cutter head for the shaft drilling machine provided by the application further comprises a rolling disc coaxially and rotatably installed on the base frame and below the threaded disc; a second tooth ring is formed on the upper end surface of the rolling disc.

[0045] A first tooth ring is formed on the threaded disc end surface away from the first threaded surface; the first tooth ring has the same parameters as the second tooth ring.

[0046] The first tooth ring and the second tooth ring have a first gap therebetween.

[0047] The reaming cutter head for the shaft drilling machine provided by the application comprises a first cavity formed in the base frame, which provides a cavity basis for temporarily storing the rock debris generated when the reaming cutter head reams; a first debris inlet is formed on the first cavity, which provides a channel for the rock debris to flow into the first cavity; the cutter head arms arranged in an annular array in the cutter head body have a second debris inlet formed on the upper end surface thereof, and a first channel is formed between the second debris inlet and the first cavity, so that more rock debris can enter the first cavity through the second debris inlet; the first debris inlet and the second debris inlet are provided with crushing wheels, so that the debris generated after the rock is broken can be directly discharged into the first cavity and the first channel through the first debris inlet and the second debris inlet, respectively, thereby avoiding the rock debris from falling into the roadway.

[0048] The rock debris can be discharged from the first cavity to the debris outlet through the stacked-screw conveying mechanism and the debris outlet provided on the cutter head body, so that the problem that the rock debris generated during the reverse reaming process of the reaming cutter head falls into the coal mining roadway and needs to be manually cleaned intermittently, thereby causing the coal mining roadway to be unable to continuously work, can be solved.

[0049] The rotating power mechanism drivingly connected to the cutter head body can provide rotating power for the rotation of the cutter head body, so that the cutter head body and the cutter head arms connected to the cutter head body can be rotated, and the rock stratum can be fully mined by the crushing wheels on the cutter head body and the cutter head arms.

[0050] Additional aspects and advantages of the application will be made apparent by the following description. BRIEF DESCRIPTION OF DRAWINGS

[0051] In order to more clearly illustrate the technical solutions in the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the accompanying drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort.

[0052] Figure 1 is a first perspective view of the slag removal type reaming cutter for the shaft drill provided by the present application;

[0053] Figure 2 is a third perspective view of the slag removal type reaming cutter for the shaft drill provided by the present application;

[0054] Figure 3 is a longitudinal planing inclined perspective view of the slag removal type reaming cutter for the shaft drill provided by the present application;

[0055] Figure 4 is a longitudinal planing front view of the slag removal type reaming cutter for the shaft drill provided by the present application;

[0056] Figure 5 is an enlarged view of the first assembly mechanism of the slag removal type reaming cutter for the shaft drill provided by the present application;

[0057] Figure 6 is a longitudinal planing perspective view of the rotating power mechanism of the slag removal type reaming cutter for the shaft drill provided by the present application;

[0058] Figure 7 is a transverse planing perspective view of the rotating power mechanism of the slag removal type reaming cutter for the shaft drill provided by the present application;

[0059] Figure 8 is a longitudinal planing perspective view of the cutter assembly of the slag removal type reaming cutter for the shaft drill provided by the present application;

[0060] Figure 9 is a longitudinal planing perspective view of the driving mechanism of the slag removal type reaming cutter for the shaft drill provided by the present application;

[0061] Figure 10 is Figure 9 an enlarged view of C;

[0062] Figure 11 is a longitudinal planing perspective view of the variable-diameter structure of the slag removal type reaming cutter for the shaft drill provided by the present application;

[0063] Figure 12is a schematic diagram of a variable diameter unit of a slag cleaning reaming cutter disc for a shaft drilling rig provided by the present application;

[0064] Figure 13 is Figure 12 an enlarged view of D;

[0065] Figure 14 is a schematic diagram of a variable diameter unit of a slag cleaning reaming cutter disc for a shaft drilling rig provided by the present application;

[0066] Figure 15 is Figure 14 an enlarged view of E;

[0067] Figure 16 is a schematic diagram of a roller disc of a slag cleaning reaming cutter disc for a shaft drilling rig provided by the present application;

[0068] Figure 17 is a schematic diagram of a roller disc of a slag cleaning reaming cutter disc for a shaft drilling rig provided by the present application;

[0069] Figure 18 is a schematic diagram of a roller disc of a slag cleaning reaming cutter disc for a shaft drilling rig provided by the present application;

[0070] Reference signs:

[0071] 1, base frame; 101, second cavity; 2, cutter disc main body; 201, first cavity; 202, first slag inlet; 203, slag outlet; 204, connecting pipe; 3, cutter disc arm; 301, second slag inlet; 302, first channel; 303, telescopic arm; 3021, inclined surface; 4, crushing wheel; 5, stacked screw conveying mechanism; 501, first rotating shaft; 502, stacked screw blade; 503, first assembly mechanism; 5011, cross-shaped groove; 6, rotating power mechanism; 601, inner gear ring; 602, sun gear; 603, planetary gear; 7, rolling cutter assembly; 8, driving mechanism; 801, first conical tooth; 802, second conical tooth; 803, universal shaft assembly; 9, variable diameter mechanism; 901, sliding frame; 902, variable diameter unit; 903, push rod; 904, locking mechanism; 9021, threaded disc; 9022, first threaded surface; 9023, threaded sliding block; 9024, second threaded surface; 9025, guide disc; 9026, guide groove; 10, roller disc; 1001, first tooth ring; 1002, second tooth ring; 11, twisting wrench. DETAILED DESCRIPTION

[0072] In order to make the objects, technical solutions and advantages of the present application clearer, the following will clearly and completely describe the technical solutions in the present application with reference to the drawings in the present application. Obviously, the described embodiments are only a part of embodiments of the present application, but not all embodiments of the present application. Based upon the embodiments in the present application, all other embodiments obtained by those ordinarily skilled in the art without creative effort should fall into the scope of the present application.

[0073] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the embodiments of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second" and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0074] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, or electrically connected; can be directly connected, or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0075] In the embodiments of the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the horizontal height of the first feature is less than that of the second feature.

[0076] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms is not directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any suitable manner in any one or more embodiments or examples. In addition, different embodiments or examples described in the present specification and the features of different embodiments or examples can be combined and combined by those skilled in the art without contradiction.

[0077] The technical solutions of the present application are described below in combination with the embodiments shown in the drawings: Figures 1 to 18

[0078] The embodiments of the present application provide a slagging reaming cutter for a shaft drilling machine, as shown in the drawings, comprising a base frame 1, a cutter body 2, cutter arms 3, crushing wheels 4, a stacked screw conveying mechanism 5 and a rotating power mechanism 6; wherein: Figures 1 to 3

[0079] The cutter body 2 is installed on the base frame 1, and a first cavity 201 is formed in the middle part, and a first slag inlet 202 is formed on the upper end face of the first cavity 201;

[0080] The cutter arms 3 are arranged in a ring array around the central axis of the cutter body 2 and are connected to the cutter body 2, and a second slag inlet 301 is formed on the upper end face of the cutter arm 3, and the second slag inlet 301 is in communication with the first cavity 201 to form a first channel 302;

[0081] The crushing wheels 4 are arranged in a ring array around the central axis of the cutter body 2 and are connected to the cutter body 2, and a second slag inlet 301 is formed on the upper end face of the cutter arm 3, and the second slag inlet 301 is in communication with the first cavity 201 to form a first channel 302;

[0082] The stacked screw conveying mechanism 5 is arranged in the first cavity 201 along the axis of the cutter body 2 and extends to the slag outlet 203 of the cutter body 2;

[0083] The rotating power mechanism 6 is installed on the base frame 1 and is drivingly connected to the cutter body 2 for driving the cutter body 2 to rotate.

[0084] In some embodiments, the cutter arm 3 can be selected as a whole circular truncated cone cutter, and is connected to the cutter body 2 at an angle, and the second slag inlet 301 is arranged on the cutter arm 3 and is in communication with the first cavity 201 to form the first channel 302, and the first channel 302 is in communication with the second slag inlet 301 and the first cavity 201, so that the cutter arm 3 can realize the transportation of rock slag from the second slag inlet 301 to the first cavity 201; ​​

[0085] The stacking screw conveying mechanism 5 can be a combination of various conveying components, which can realize the transportation of the rock slag in the first cavity 201 to the slag outlet 203;

[0086] The rotating power mechanism 6 can be a combination of various rotating components, which can also be directly mounted on the bottom of the cutter head main body 2, which can drive the rotation of the cutter head main body 2.

[0087] The embodiment provides a slag removal type reaming cutter for a shaft drilling machine, as shown in Figure 1 and Figure 2 The broken wheel 4 provided on the first slag inlet 202 is provided with a plurality of cylindrical cutters with the same diameter, and a plurality of conical cutters with decreasing diameters are provided on the second slag inlet 301. Each cutter is provided with a protruding rivet. Different from the cylindrical cutters of the first slag inlet 202, the conical cutters of the second slag inlet 301 make the pressure on the rock slag greater, which is beneficial to the rock slag being squeezed into the first channel 302 when the cutter arm 3 rotates.

[0088] The first cavity 201 formed in the middle of the base frame 1 provides a temporary storage cavity for the rock slag generated during the reaming of the reaming cutter. The first slag inlet 202 opened on the first cavity 201 provides a channel for the rock slag to flow into the first cavity 201.

[0089] The cutter arms 3 are arranged in an annular array around the central axis of the cutter head main body 2. The second slag inlet 301 is opened on the upper end surface of the cutter arm 3, and the first channel 302 is formed by the communication between the second slag inlet 301 and the first cavity 201, so that more rock slag can enter the first cavity 201 through the second slag inlet 301. The broken wheel 4 is arranged at the first slag inlet 202 and the second slag inlet 301, and the slag generated after the rock is broken is directly discharged into the first cavity 201 and the first channel 302 through the first slag inlet 202 and the second slag inlet 301, respectively, to avoid the rock slag from falling into the roadway.

[0090] The rock slag can be discharged from the first cavity 201 to the slag outlet 203 through the stacking screw conveying mechanism 5 and the slag outlet 203 extending to the cutter head main body 2. In this way, the problem that the rock slag generated during the reverse reaming process of the reaming cutter falls into the coal mining roadway and needs to be manually cleaned intermittently, causing the coal mining roadway to be unable to work continuously, can be solved.

[0091] The rotating power mechanism 6 mounted on the cutter head main body 2 for driving connection can provide rotating power for the rotation of the cutter head main body 2, so as to realize the rotation of the cutter head main body 2 and the cutter arm 3 connected with the cutter head main body 2, and the broken wheel 4 on the cutter head main body 2 and the cutter arm 3 can perform omnidirectional mining on the rock stratum.

[0092] According to the embodiment of the present application, the slag removal type reaming cutter for the shaft drilling machine is provided, which comprises Figure 3 and Figure 4 As shown in the figure, the spiral conveying mechanism 5 comprises a first rotating shaft 501 and spiral blades 502, wherein the first rotating shaft 501 is coaxially rotatably arranged in the first cavity 201 and extends to the slag outlet 203; the spiral blades 502 are arranged on the outer wall of the first rotating shaft 501 in the axial direction of the first rotating shaft 501.

[0093] The slag outlet 203 is formed by the pipe opening of the connecting pipe 204 rotatably arranged on the cutter body 2 in the axial direction; the end of the first rotating shaft 501 close to the slag outlet 203 is provided with a first assembly mechanism 503, which is used to be assembled and connected with the spiral transmission shaft in the brick shaft of the shaft, and then the synchronous rotation is formed.

[0094] In some embodiments, the rotatable rod body and the bottom plate with a diameter smaller than the connecting pipe 204 and carrying the rock slag can be selected as the spiral conveying mechanism 5, which can transport the rock slag to the slag outlet 203.

[0095] In the embodiment, the slag outlet 203 is formed by the pipe opening of the connecting pipe 204, so that the reaming cutter can be connected with multiple pipes in stages, which can be applied to mines of various depths; meanwhile, the connecting pipe 204 is rotatably arranged, so that the brick rod matched with the first rotating shaft 501 can drive the connecting pipe 204 to rotate; when the motor drives the brick rod to rotate, the spiral transmission shaft in the brick rod can drive the first assembly mechanism 503 to rotate, and then drive the first rotating shaft 501 to rotate; the spiral blades 502 on the outer wall of the first rotating shaft 501 rotate to drive the rock slag to be transported from the first cavity 201 to the slag outlet 203, and then further transported to the outside of the mine through the spiral transmission shaft.

[0096] According to the embodiment of the present application, the slag removal type reaming cutter for the shaft drilling machine is provided, which comprises Figure 5 As shown in the figure, the first assembly mechanism 503 comprises a cross-shaped slot 5011 opened in the end of the first rotating shaft 501.

[0097] In some embodiments, the inner threaded pipe matched with the spiral transmission shaft can be selected as the first assembly mechanism 503, which is welded on the end of the first rotating shaft 501, or the first assembly mechanism 503 is arranged on the end of the first rotating shaft 501 through the external connection of the bayonet structure with the inner threaded pipe, and the like, which can indirectly connect the spiral transmission shaft and the first rotating shaft 501.

[0098] In the embodiment, the cross-shaped slot 5011 opened in the end of the first rotating shaft 501 is selected as the first assembly mechanism 503, and the end of the spiral transmission shaft in the brick rod is a protruding cross-shaped block matched with the cross-shaped slot 5011, which is convenient, fast and firmly assembled.

[0099] The slag removal type reaming cutter for the shaft drilling machine provided by the embodiment of the application has the advantages that Figure 6 and Figure 7 As shown in the figures, the base frame 1 is formed with a second cavity 101, the first rotating shaft 501 penetrates the first cavity 201 and extends to the second cavity 101, and is rotationally connected to the bottom of the second cavity 101;

[0100] The rotating power mechanism 6 comprises:

[0101] The inner ring gear 601 is arranged in the second cavity 101 and is fixedly connected to the inner wall of the second cavity 101;

[0102] The sun gear 602 is coaxially arranged on the first rotating shaft 501 and is located in the second cavity 101;

[0103] The planet gears 603 are arranged in a ring array around the sun gear 602 and are rotationally connected to the base frame 1, and each planet gear 603 has a rotating shaft axis that is the same as that of the first rotating shaft 501;

[0104] The planet gears 603 are respectively in meshing connection with the sun gear 602 and the inner ring gear 601, and the diameter of the planet gears 603 is greater than that of the sun gear 602.

[0105] In some embodiments, the rotating power mechanism 6 can be a separate hydraulic motor acting on the cutter body 2, a separate gear installed on the first rotating shaft 501, and in meshing connection with the inner ring gear 601 on the inner wall of the second cavity 101, etc., which can realize the rotation of the base frame 1 or the cutter body 2, and the rock layer can be broken by the breaking wheel 4 on the cutter body 2.

[0106] In the embodiment, the second cavity 101 formed by the base frame 1 provides a cavity basis for the installation of the rotating power mechanism 6; the first rotating shaft 501 penetrates the first cavity 201 and extends to the second cavity 101 and is connected to the bottom of the second cavity 101, so that the power source of the rotating power mechanism 6 is provided by the first rotating shaft 501, and a set of power systems is shared, which reduces the mechanical structure of the reaming cutter and reduces consumption compared with the separate design of the power system;

[0107] The sun gear 602 is coaxially installed on the first rotating shaft 501, so that when the first rotating shaft 501 rotates, the sun gear 602 can be driven to rotate. Since the planetary gears 603 are arranged in an annular array around the sun gear 602, when the sun gear 602 rotates, the planetary gears 603 are driven to rotate. Since the planetary gears 603 are in meshing connection with the inner gear ring 601, and the inner gear ring 601 is fixedly connected with the inner wall of the second cavity 101, and the second cavity 101 is formed by the base frame 1, the first rotating shaft 501 can drive the sun gear 602, the planetary gears 603 and the inner gear ring 601 to rotate, thereby driving the base frame 1 to rotate, and realizing the rotation of the cutter head main body 2.

[0108] The diameter of the planetary gear 603 is greater than the diameter of the sun gear 602, and according to the transmission ratio formula:

[0109]

[0110] In the above transmission ratio formula, represents the number of gear teeth of the gear ring, represents the number of gear teeth of the sun gear, is the transmission ratio, so it can be concluded that when the diameter of the planetary gear 603 is increased, it will not directly affect the transmission ratio relationship between the sun gear 602, the planetary gear 603 and the inner gear ring 601. Therefore, in this embodiment, by increasing the diameter of the planetary gear 603, the torque on the cutter head main body 2 is high torque and low speed, and the torque on the first rotating shaft 501 is low torque and high speed, so that the speed of the rock slag entering the first channel 302 is less than the speed of the rock slag carried out by the spiral conveying mechanism 5, thereby preventing the phenomenon of rock slag blocking the first cavity 201.

[0111] According to the rock slag removing type reaming cutter head for a shaft drill provided by the embodiment of the present application, as shown in Figure 8 The first channel 302 is formed with a slope 3021 facing the first cavity 201;

[0112] Further comprising:

[0113] The rolling cutter assembly 7 is rotationally arranged in the first channel 302 and is used for conveying the rock slag to the first cavity 201;

[0114] The driving mechanism 8 is in driving connection with the rolling cutter assembly 7 and is used for driving the rolling cutter assembly 7 to rotate.

[0115] In some embodiments, the rolling cutter assembly 7 can be two groups of cutters arranged in an upper and lower side-by-side connection, and then extended to the outer wall of the cutter head arm 3 by a coaxial rotating rod, and then connected with a separate speed reducer motor as the driving mechanism 8, so as to realize the rotation of the rolling cutter assembly 7 and transport the rock slag into the first cavity 201.

[0116] In the embodiment, the slope 3021 can flow the rock slag into the first cavity 201, prevent the rock slag from accumulating at the second slag inlet 301, and cause the rock slag to fall into the roadway;

[0117] The cutter assembly 7, as shown in the figure, is a rod body coaxially connected to one end of the universal shaft assembly 803, and a plurality of half-moon type rotary cutters are arranged on the rod body. Figure 8 The driving mechanism 8 drives the cutter assembly 7 to rotate, further transports the rock slag flowing into the first channel 302 from the second slag inlet 301 to the first cavity 201, and makes the rock slag faster carried out of the reamer head by the stacking screw conveying mechanism 5, thereby reducing the probability of the rock slag blocking the first cavity 201.

[0118] According to the embodiment of the present application, the reamer head with slag removal for a shaft drilling machine is provided, as shown in the figure, Figure 9 and Figure 10 The driving mechanism 8 includes:

[0119] The first conical tooth 801 is coaxially fixedly installed below the first cavity 201;

[0120] The second conical tooth 802 has a plurality of teeth and is engaged with the first conical tooth 801;

[0121] The universal shaft assembly 803 is coaxially connected to one end of the second conical tooth 802 and coaxially connected to the other end of the cutter assembly 7, and is used to drive the cutter assembly 7 to rotate.

[0122] In some embodiments, the driving mechanism 8 can be directly articulated to the first rotating shaft 501 at the end of the universal shaft assembly 803, so that the universal shaft assembly 803 can be driven to rotate by the driving mechanism 8.

[0123] In the embodiment, the first conical tooth 801 is coaxially installed on the first rotating shaft 501, so that the first rotating shaft 501 can drive the first conical tooth 801 to rotate, and the first conical tooth 801 and the second conical tooth 802 are engaged at an angle of 90°, so that the radial rotation force received by the first conical tooth 801 can be converted into an axial rotation force acting on the second conical tooth 802.

[0124] The radial rotation force can be converted into an axial rotation force acting on the second conical tooth 802, and through the connection of the universal shaft assembly 803 and the cutter assembly 7, the axial rotation force acting on the second conical tooth 802 is applied to the universal shaft assembly 803, which is used to drive the cutter assembly 7 to move.

[0125] According to the embodiment of the present application, the reamer head with slag removal for a shaft drilling machine is provided, as shown in the figure, Figure 9 The reamer arm 3 is a telescopic arm 303; and the variable diameter mechanism 9 is connected with the telescopic arm 303 and is used to drive each telescopic arm 303 to extend or retract.

[0126] In some embodiments, the variable-diameter mechanism 9 can be a telescopic connecting rod in direct contact with the telescopic arm 303, carried on the base frame 1 by a small servo motor, and then controls the telescopic connecting rod to drive the telescopic arm 303 to extend or retract; or a hydraulic piston connected with the telescopic arm 303, which can realize the driving of the telescopic arm 303 to extend or retract by hydraulic oil, servo motor driving, etc.

[0127] In this embodiment, the cutter arm 3 is a telescopic arm 303, which provides a basis for the variable-diameter mechanism 9 to change diameter;

[0128] The variable-diameter mechanism 9 is connected with the telescopic arm 303, and by controlling the operation of the variable-diameter mechanism 9, the telescopic arm 303 can reciprocate, so that the reaming cutter head assembled can increase the size of the cutter arm 3 under the action of the variable-diameter mechanism 9, and then the reaming area can be continuously increased by the crushing wheel 4 on the cutter arm 3, without repeated disassembly and adjustment.

[0129] According to the embodiment of the present application, the slag removal type reaming cutter for the shaft drilling machine is provided, Figure 11 As shown in the figure, the variable-diameter mechanism 9 comprises a sliding frame 901, a variable-diameter unit 902, a push rod 903 and a locking mechanism 904; wherein:

[0130] The sliding frame 901 has a plurality of sliding frames, which are respectively connected with the movable parts of the cutter arm 3 and are in sliding connection with the base frame 1;

[0131] The variable-diameter unit 902 is coaxially arranged on the base frame 1;

[0132] The push rod 903 has a plurality of push rods, one end of each push rod 903 is connected with the sliding frame 901, and the other end is connected with the variable-diameter unit 902;

[0133] The locking mechanism 904 is connected with the push rod 903, and is used to lock the push rod 903 after the push rod 903 moves to the target position;

[0134] Among them, the variable-diameter unit 902 is used to make the plurality of push rods 903 extend or contract synchronously.

[0135] In some embodiments, the telescopic push rod or the like can be selected as the push rod 903, and the sliding frame 901 can be driven to move forward and backward; therefore, the locking mechanism 904 can be selected as a clamping type lock, and when the telescopic push rod is selected as the push rod 903, a control clamp can be arranged at a position that can be touched outside the base frame 1, the telescopic rod can be elongated by opening the clamp, and after being placed at a proper position, the telescopic push rod can be locked by the clamp, or a chain tooth and a slot can be selected as the locking mechanism 904, a protruding chain tooth is arranged on the fixed section of the telescopic rod, a slot is arranged on the telescopic section, and a rotating screw is arranged on the surface of the slot, the chain tooth can drive the telescopic rod to move, and after being placed at a proper position, the locking effect can be achieved by rotating the screw in the slot, so the locking mechanism 904 can achieve the locking effect after the push rod 903 is placed at a proper position.

[0136] In the embodiment, the sliding frame 901 can provide a support basis for the movement of the cutter arm 3; the variable-diameter unit 902 is arranged on the base frame 1 and can move synchronously in all directions; the push rod 903 can move together with the push rod 903 connected to the variable-diameter unit 902 along with the movement of the variable-diameter unit 902, and then the cutter arm 3 can be used to carry out omnidirectional mining on the rock layer through the crushing wheel 4; the locking mechanism 904 can lock the position of the push rod 903 after the movement of the push rod 903, so that when the first rotating shaft 501 drives the cutter arm 3 to rotate, the reverse rotation force acting on the push rod 903 cannot cause the cutter arm 3 to retract, and the device body cannot be damaged.

[0137] According to the embodiment of the present application, the slag removal type reaming cutter for the shaft drilling machine is provided. Figures 12 to 15 As shown in the figure, the variable-diameter unit 902 comprises:

[0138] The threaded disc 9021 is coaxially and rotatably installed on the base frame 1 and has a first threaded surface 9022;

[0139] The threaded sliding blocks 9023 are arranged in a ring array with the axis of the threaded disc 9021 as the rotation axis, and each threaded sliding block 9023 has a second threaded surface 9024, and the second threaded surface 9024 is engaged with the first threaded surface 9022.

[0140] The guide disc 9025 is coaxially and fixedly connected to the base frame 1 and has a plurality of guide grooves 9026 radially arranged;

[0141] The threaded sliding blocks 9023 are fixedly connected to the push rod 903, the threaded sliding blocks 9023 are embedded in the guide grooves 9026 and can slide in the guide grooves 9026.

[0142] In some embodiments, the threaded disc 9021 may be selected as a square or other shape, and similarly the threaded slider 9023 may also be other shapes, as long as the first threaded surface 9022 on the threaded disc 9021 and the second threaded surface 9024 on the threaded slider 9023 can mesh.

[0143] In this embodiment, the threaded disc 9021 and the threaded slider 9023 are respectively provided with a first threaded surface 9022 and a second threaded surface 9024. Therefore, adjusting the threaded disc 9021 can drive the threaded slider 9023 to move in all directions. One end of the threaded slider 9023 is fixedly connected to the push rod 903. Therefore, the movement of the threaded slider 9023 causes the push rod 903 to move, which in turn drives the cutter head arm 3 to move in all directions, so that the well enlargement cutter head can increase the well enlargement diameter. The guide disc 9025 provides a carrier base for mounting the threaded slider 9023. The guide groove 9026 constrains the movement distance of the threaded slider 9023.

[0144] The slag-removing reamer for vertical shaft drilling rigs provided in the embodiments of the present invention, such as... Figure 16 and Figure 18 As shown, it also includes a roller 10, which is coaxially rotatably mounted on the base frame 1 and located below the threaded disc 9021; a second toothed ring 1002 is provided on the upper end face of the roller 10.

[0145] A first toothed ring 1001 is provided on the end face of the threaded disc 9021 that is opposite to the first threaded surface 9022; the first toothed ring 1001 has the same parameters as the second toothed ring 1002.

[0146] There is a first gap between the first toothed ring 1001 and the second toothed ring 1002.

[0147] In this embodiment, the roller 10 is configured with a slot that provides leverage for the torsion of the torsion wrench 11.

[0148] Through the first toothed ring 1001 on the threaded disc 9021 and the second toothed ring 1002 on the roller disc 10, it is possible to pass through as follows: Figure 18 The external torsion wrench 11 is used to position it in the gap between the first toothed ring 1001 and the second toothed ring 1002. Then, by using the torsion wrench 11, the threaded disc 9021 where the first toothed ring 1001 is located can be moved, thereby driving the variable diameter unit 902 to change.

[0149] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A cleanout reamer head for a shaft drill rig, characterized in that, The utility model relates to a cutting disc, including: a base frame; a cutting disc body mounted on the base frame, a first cavity formed in the middle part of the cutting disc body, and a first slag inlet formed on the upper end surface of the first cavity; a plurality of cutting disc arms, each of which is arranged in a ring array around the central axis of the cutting disc body and connected to the cutting disc body, and a second slag inlet formed on the upper end surface of the cutting disc arm, the second slag inlet being in communication with the first cavity and forming a first channel; a plurality of crushing wheels, each of which is mounted on the cutting disc body near the first slag inlet and on the cutting disc arm near the second slag inlet; a spiral conveying mechanism arranged in the first cavity along the axis of the cutting disc body and extending to the slag outlet of the cutting disc body; a rotary power mechanism mounted on the base frame and drivingly connected to the cutting disc body for driving the cutting disc body to rotate; the cutting disc arm is a telescopic arm; a diameter changing mechanism connected to the telescopic arm for driving each telescopic arm to extend or retract; the diameter changing mechanism includes: a plurality of sliding frames, each of which is connected to the movable part of the cutting disc arm and slidingly connected to the base frame; a diameter changing unit coaxially arranged on the base frame; a plurality of push rods, each of which has one end connected to the sliding frame and the other end connected to the diameter changing unit; a locking mechanism connected to the push rod for locking the push rod after it moves to a target position; the diameter changing unit is used to synchronize the extension or retraction of the plurality of push rods; the diameter changing unit includes: a threaded disc coaxially and rotatably mounted on the base frame and having a first threaded surface; a plurality of threaded sliders, each of which is arranged in a ring array around the axis of the threaded disc and has a second threaded surface, the second threaded surface being engaged with the first threaded surface; a guide disc coaxially and fixedly connected to the base frame and having a plurality of guide grooves formed in the radial direction; the threaded slider is fixedly connected to the push rod, the threaded slider is embedded in the guide groove and can slide in the guide groove; the cutting disc further includes a rolling disc coaxially and rotatably mounted on the base frame below the threaded disc, and the upper end surface of the rolling disc is provided with a second gear ring; the end surface of the threaded disc away from the first threaded surface is provided with a first gear ring, and the first gear ring has the same parameters as the second gear ring; the first gear ring and the second gear ring have a first gap therebetween; the cutting disc further includes a twisting wrench, the rolling disc provides a slot for the twisting wrench to provide a force for twisting, the twisting wrench is located in the gap between the first gear ring and the second gear ring, and the threaded disc where the first gear ring is located is moved by the twisting wrench, thereby driving the diameter changing unit to change.

2. The cleanout reamer head for a shaft drill rig of claim 1, wherein, the spiral conveying mechanism includes: a first rotating shaft coaxially and rotatably mounted in the first cavity and extending to the slag outlet; spiral blades arranged in a spiral manner on the outer wall of the first rotating shaft along the axial direction of the first rotating shaft; The slag outlet is formed by a pipe opening of a connecting pipe arranged on the cutter head body in an axial direction.

3. The cleanout reamer head for a shaft drill rig of claim 2, wherein, The first assembly structure is arranged on one end of the first rotating shaft close to the slag outlet, and is used for assembly connection with a screw stack transmission shaft in a drill rod of a shaft drill, so as to form synchronous rotation.

4. The cleanout reamer head for a shaft drill rig of claim 2, wherein, The first assembly structure comprises a cross-shaped slot opened in the end of the first rotating shaft. The base frame is formed with a second cavity, the first rotating shaft penetrates the first cavity and extends to the second cavity, and is rotationally connected with the bottom of the second cavity. The rotating power mechanism comprises: An inner gear ring is arranged in the second cavity and is fixedly connected with the inner wall of the second cavity; A sun gear is coaxially installed on the first rotating shaft and is located in the second cavity; A plurality of planet gears are arranged in an annular array around the sun gear and are rotationally connected with the base frame, with the axis of the first rotating shaft as the rotation axis.

5. The cleanout reamer head for a shaft drill rig of claim 2, wherein, The planet gears are respectively engaged with the sun gear and the inner gear ring, and the diameter of the planet gears is greater than the diameter of the sun gear. The first channel is formed with a slope towards the first cavity. Further comprising: A rolling cutter assembly is rotationally arranged in the first channel and is used for conveying slag to the first cavity; 6. The cleanout reamer cutterhead for a shaft drill according to claim 5, wherein, A driving mechanism is drivingly connected with the rolling cutter assembly and is used for driving the rolling cutter assembly to rotate. The driving mechanism comprises: A first conical gear is coaxially fixedly installed on the first rotating shaft and is located below the first cavity; A plurality of second conical gears are engaged with the first conical gear; A universal shaft assembly is coaxially connected with the second conical gear at one end and is coaxially connected with the rolling cutter assembly at the other end, and is used for driving the rolling cutter assembly to rotate.

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