73 results about "Drill bushing" patented technology

The utility model discloses a gear rapid inclined hole drilling clamp which is characterized in that the gear rapid inclined hole drilling clamp comprises an installation bottom plate, a vertical plate, an inclined supporting plate and an inclined bottom plate, the vertical plate and the inclined supporting plate are vertically arranged on the installation bottom plate, the inclined bottom plate is arranged on the top face of the vertical plate and the top face of the inclined supporting plate, a tooth-shaped positioning block is arranged on the inclined bottom plate, and the tooth-shaped positioning block is arranged on the inclined bottom plate. The tooth-shaped positioning block is provided with a tooth-shaped positioning face meshed with a gear, a V-shaped block is arranged on the inclined bottom plate on one side of the opposite direction of the tooth-shaped positioning block in a sliding mode, a driving device for driving the V-shaped block is arranged on the vertical plate, and a drill jig base is arranged on the inclined bottom plate. And a drill bushing of which the axis direction is vertical to the mounting bottom plate is arranged on the drill jig seat. The clamp has the advantages that the clamp is simple in structure and low in manufacturing cost, the gear is convenient to clamp and position, rapid drilling can be achieved, the machining efficiency can be improved, the position precision of oil hole machining is high, and it can be repeatedly guaranteed that the oil hole is aligned with the tooth groove of the gear in the center.

The utility model discloses a gear drilling clamp, characterized in that: including clamp base, support plate, clamp base plate, wherein the clamp base plate is set up on the clamp base through the support plate, the middle part of clamp base plate is provided with the vertical positioning shaft of elevating, be provided with the locating block on the clamp base plate, the one side of locating block is provided with the drill jig seat, the drill jig seat upper portion is provided with the drill jig board that extends to the above of locating block horizontally, be provided with the drill bushing on the drill jig board, be provided with the horizontal sliding tooth groove locating block on the drill jig seat, the front end of tooth groove locating block has with the gear tooth groove structure to the adaptation of fixed tooth taper, be provided with the pressure cylinder of pressing the gear upper end face on the clamp base plate. The utility model has the beneficial effects including: the clamp structure is simple, and workpiece clamping is convenient, and the positioning accuracy is high, and the processing error is little, and the gear drilling processing efficiency and product qualification rate have been improved significantly.

The utility model discloses an aviation structural member blind bolt dismantling frock, the vertical rectangular through -hole is set up in the inside of rectangular positioning frame, the horizontal threaded through -hole is set up on positioning frame circumferential four side wall surface respectively, rectangular movable block is located in rectangular through -hole, the vertical positioning through -hole is set up in movable block inside, the strip -shaped mortise is set up on movable block circumferential four side wall surface respectively, and the length direction of strip -shaped mortise is with movable block length direction same direction, and the wave pearl positioning bolt is set up in threaded through -hole to its front end and stretches into strip -shaped mortise bottom surface and is combined, is installed a plurality of sucking disc on positioning frame one side surface, and drill bushing inserts positioning through -hole, and the lower end face on drill bushing is equipped with the positioning dog corresponding with the blind bolt of to be removed, and sucking disc and positioning dog are in the upside or downside of positioning frame. The dispersedly distributed sucking disc guarantees and different parts effective adsorption, and positioning frame, movable block, wave pearl positioning bolt form adjusting mechanism, after having been adsorbed to complete through sucking disc in positioning frame, still can adjust movable block and drill bushing in a certain range.

The utility model belongs to the technical field of nut drilling, and particularly relates to a precise positioning adjustable drilling device which comprises a nut positioning block, an adjusting positioning block is detachably connected to the outer wall of the nut positioning block, the adjusting positioning block is in threaded connection with a first adjusting screw rod, a guide assembly is arranged on the outer wall of the nut positioning block, and a second adjusting screw rod is arranged on the guide assembly. A nut positioning opening is formed in the side, away from the adjusting positioning block, of the nut positioning block, the guide assembly comprises a drill bushing, the upper side of the drill bushing is fixedly connected with a trapezoidal block, and the trapezoidal block is slidably connected with a mounting block; and the limiting block is rotationally connected to the outer wall of the mounting block, and the upper side of the mounting block is rotationally connected with a second adjusting screw rod. According to the adjustable drilling device capable of achieving accurate positioning, after a nut is fixed, the position of the nut can be adjusted by adjusting the position of the device, operation is flexible, meanwhile, the drilling position is limited through the design of the drilling sleeve, and the drilling quality is guaranteed.

The invention belongs to the field of radome manufacturing, and particularly relates to a method for accurately manufacturing a rubber sealing belt connecting hole for a composite cover body. As the rubber sealing belt is soft, a drill bit cannot be used for drilling, and generally, a blade is used for cutting the rubber sealing belt along the hole edge of the manufactured composite cover body for drilling. The invention provides a method for accurately manufacturing a rubber sealing belt connecting hole for a composite cover body, which is characterized in that a composite cover body punching device is designed based on the appearance and the punching position of the composite cover body, and firstly, a composite cover body rubber sealing belt is positioned and placed at the upper end of a limiting punching die; then, a pressing plate is placed at the upper end of the rubber sealing belt of the composite cover body, and the pressing plate is pressed through a rapid pressing device; and the punch is controlled to quickly pass through the drill bushing upwards at the lower end of the table board so as to cut a connecting hole of the rubber sealing belt of the composite cover body. The consistency of the rubber sealing belt connecting holes of the composite cover body and the hole positions of the composite cover body is guaranteed, and the efficiency of accurately manufacturing the rubber sealing belt connecting holes is improved.

The utility model provides a vertical drill bushing for aeronautical part machining, relates to the technical field of vertical drill bushings, and aims to solve the problems that when an existing vertical drill bushing is used, the height of the vertical drill bushing cannot be conveniently adjusted according to requirements to meet the punching requirements, and the practicability is poor. A main body is slidably mounted in the fixing part; a contact piece is arranged at the top of the lower fixing piece; the top of the locking piece is connected with the fixing piece above the locking piece through a spring; an inner groove is formed in the locking piece; a contact piece is slidably installed in the inner groove. The locking piece is pulled upwards, so that the locking piece moves on the connecting rod and compresses the spring, the sliding depth of the main body in the positioning piece is freely adjusted, the bottom of the main body makes better contact with a workpiece, the locking piece is driven to move through reset of the spring, and the top of an inner groove of the locking piece makes contact with the inclined face of the top of the contact piece. And the contact piece is extruded, so that the contact piece locks the position of the main body, and the practicability is higher.

The utility model provides a drilling soil sampling device for roadbed compactness detection, a twist drill is sleeved in the middle of a sheath, two ends of the twist drill penetrate through two ends of the sheath, the twist drill is connected with the lower end of a rotating handle through an upper end connecting block, a collecting mechanism is arranged on the inner side of the upper end of the sheath, and the collecting mechanism is detachably connected with the upper end of the sheath through a lower end fixing column of the collecting mechanism. A scraping rod is arranged on the inner side of the collecting disc, the scraping rod extends into the inner side of a thread of the twist drill and is used for scraping a soil sample taken by the twist drill, a fixing mechanism is arranged on the outer side of the sheath, and the sheath is arranged above a soil sampling point through the fixing mechanism. The problems that a drilling and soil sampling device is not easy to disassemble and replace and soil sampling is inconvenient are solved.

The present application belongs to the technical field of steam turbine rotor impeller processing, in particular to a drill jig for fork type impeller pin hole of steam turbine rotor and a processing method, comprising a workbench, a positioning assembly and a drill jig assembly; the drill jig assembly comprises a pressure plate, a hydraulic cylinder, a movable sleeve, a drill jig plate, a side edge plate, a drill sleeve and a punching mechanism; the side surface of the pressure plate is provided with an annular guide rail; the movable sleeve is slidably connected to the annular guide rail; the drill jig plate is slidably connected to the inside of the movable sleeve; through the cooperative work of the positioning assembly and the drill jig assembly, the precise control of the angle and position in the impeller pin hole processing process is realized, the hole position deviation problem caused by manual line drawing error in the traditional processing mode is effectively avoided, and after one-time punching, the side edge plate, the drill jig plate and the movable sleeve can be rotated as a whole to adjust to the next punching angle, so that the processing of all different angle pin holes can be continuously completed without repeated disassembly of the drill jig, and the processing efficiency is significantly improved.

An adjustable navigated surgical drill sheath includes a handle, main body, and adjustment arrangement. The main body can receive a separate surgical drill bit through a top opening, a hollow region therethrough, and a bottom opening. The adjustment arrangement can facilitate setting a specific drill depth corresponding to the maximum distance that the drill bit can extend past the bottom opening and allows for multiple different specific drill depths. The adjustment arrangement can include a removable insert having locking features than can be moved up and down within the hollow region and a latching mechanism that interacts with the locking features to lock the insert at a specific position relative to the main body to set the specific drill depth. Fiducial markers coupled to the main body can facilitate use of the surgical drill sheath as a navigated device in an augmented reality environment.

This utility model belongs to the technical field of engine parts, specifically a drilling and positioning fixture for an engine crankshaft inclined oil hole. It includes a base with a support block on it. The support block has a right-angled triangular cross-section with a 60° inclined surface. A working plate is provided on the inclined surface, with a first strip-shaped hole and a first locking hole. A drill sleeve is installed in the first locking hole. The drill sleeve includes a locking block and a guide block. The guide block is cylindrical and engages with the first locking hole. The locking block is located at one end of the guide block. The other end of the guide block has a milled inclined surface facing the side wall, with an angle of 30 degrees between the milled inclined surface and the central axis of the guide block. A guide hole is provided on the milled inclined surface, perpendicular to it. The milled inclined surface is horizontally upward. The eccentric hole at the crankshaft's machining end is fitted onto the drill sleeve, with one end inserted into the first strip-shaped hole. The crankshaft is positioned by the drill sleeve. The inclined oil hole is vertical. The drill sleeve supports and positions the crankshaft, improving the clamping and positioning efficiency of the crankshaft while reducing the workload of workers and increasing work efficiency.

The application discloses a mixed driving accumulator head deep drawing drilling device, and relates to the technical field of hydraulic machine deep drawing drilling automation, which comprises an upper die part, a lower die part and a drilling part. The upper die part comprises an upper die plate, a blank holding oil cylinder, a male die seat, a male die, a blank holder pad, and a blank holder. The lower die part comprises a lower die seat, a lower die seat vertical plate, a female die, a female die seat, a material removing plate and a material removing spring. The drilling part comprises a drilling power part and a drilling feeding part. The drilling power part comprises a direct current speed regulating motor, a motor mounting seat, a lifting plate, a drill bit, a drill sleeve, a drill sleeve fixing seat, a lifting rod, a lifting plate, a lifting plate screw, a lifting plate spring, a wire gauge seat and a wire gauge mounting plate. The drilling feeding part comprises a servo motor, a bevel gear, a ball screw, a screw nut, a bearing and a screw rod moving mounting plate. The application has high automation degree, can complete two processes of drawing and drilling at one time, avoids positioning errors caused by secondary clamping, can eliminate part of deformation stress after drilling and improves the stability of the blank.

1. The name of the design product: tripod type vertical drill bushing. 2. The use of the design product: used for high-precision manual drilling in aircraft assembly operations. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

The application provides a processing tool for inverted-cone-shaped groove holes and a use method, and belongs to the field of mechanical manufacturing and processing. The processing tool comprises a guide hole vertical drill sleeve, a fixing support, a swinging support arm, a fastening light pole bolt positioning pin, a fastening bolt, a positioning fastener, a dovetail groove slide rail, a positioning side plate, an outer contour side plate, a transmission rod, an auxiliary transmission rod, a scale ruler I and a scale ruler II. The tool has a novel structure, high matching precision, can be applied to the determination and processing of inverted-cone-shaped groove inner holes in various narrow operation spaces, and solves the problem of inaccurate line drawing of inverted-cone-shaped grooves and incorrect determination of hole positions.

A shell breaking device for electrolytic aluminum smelting relates to the technical field of electrolytic aluminum and comprises a rack, a lifting device, a shell breaking drilling device and a spiral feeder, a motor drives a drill rod and a drill bit to drill holes and is matched with a hammer to hammer and open holes, and the spiral feeder synchronously lifts to feed aluminum oxide; the crust breaking and drilling device is exquisite in structure, and all the parts work cooperatively to guarantee the tapping quality; the hammering mechanism comprises a fixed seat, an annular slide way and the like, a limiting shaft is matched with the annular slide way when the drill bushing rotates, so that the drill bushing axially reciprocates to realize hammering action, and a hammer head and a drill bit relatively move to clean adhered objects; the lifting device can be a telescopic cylinder or a lifting sliding table, the motor and the driving motor can be the same motor, and the motor is in transmission connection with the lead screw through an electromagnetic clutch. The device can accurately drill, hammer and put aluminum oxide, improve the operation efficiency, ensure the tapping quality, prevent the discharge pipe from being blocked, and ensure the normal supply of aluminum oxide.

This invention belongs to the field of machining assembly technology and discloses a drilling template assembly, including a drilling template, a bushing, a drill sleeve, and a locking component. The drilling template is used to press the workpiece and has a through hole thereon; the bushing has a C-shaped ring structure and is located in the through hole, and the central hole of the bushing includes a tapered section; the first end of the drill sleeve is connected to an upstream device, and the second end passes through the tapered section and abuts against the workpiece. The drill sleeve has an mounting cone surface corresponding to the tapered section, and the mounting cone surface abuts against the inner wall of the tapered section; the locking component can lock or unlock the drill sleeve and the bushing. Compared with a drilling template, the drill sleeve reduces the contact area with the workpiece, allowing the drill sleeve to fit more tightly against the workpiece surface. Furthermore, by precision machining the drill sleeve, its height can be controlled, ensuring that the axial distance from the cutting tool on the drilling device to the workpiece surface is determined after the drilling device abuts against the workpiece surface, thus allowing for precise control of the drilling depth. It also has the advantages of simple structure and convenient operation.

The application discloses a kind of overall sample plate devices of super large rod piece drilling positioning hole, including by movable sample plate assembly of sample plate and framework, sample plate includes riser sample plate and node plate sample plate, multiple riser hole group windows are opened in the length direction of riser sample plate, at least two node plate hole group windows in different angles are opened in node plate sample plate, arc-shaped channel is equipped in node plate sample plate and is connected with the downside of node plate hole group window, first fine adjustment guide rail frame and second fine adjustment guide rail frame are equipped in the length direction of riser sample plate and are located in the left and right ends of arc-shaped channel, movable drill sleeve device is equipped on the guide rail of the side facing bridge plate in first fine adjustment guide rail frame, positioning guide rail frame is equipped in node plate hole group window, adjusting device for moving adjustment drill sleeve device is equipped in node plate sample plate.The overall sample plate device of the application can guarantee the adjustment of different rod piece hole distance, can realize the drilling of entire project upper and lower chord, and satisfies the drilling of different models of plate.

This invention relates to a tooling for drilling inclined holes in gears, belonging to the field of inclined hole drilling tooling. It includes a pressure cap, a connecting device, and a drill bushing. The workpiece is positioned between the pressure cap and the connecting device. The pressure cap has a mating boss that matches the end face of the inclined hole on the workpiece. The mating boss has a mounting hole, the axis of which coincides with the axis of the inclined hole. The drill bushing is positioned within the mounting hole. This invention clamps the workpiece between the connecting device and the pressure cap. The pressure cap has drill bushings matching the position and number of inclined holes to be machined on the workpiece. The drill bushings are close to the entry point of the inclined surface on the workpiece. By using the drill bushings, the drill bit is protected, preventing slippage and breakage on the inclined surface at the entry point. The workpiece, clamped between the pressure cap and the connecting device, can be fixed at various angles, ensuring the axis of the inclined hole is vertically aligned to complete the machining of the desired inclined hole.

The application provides a quick sleeve pressing device and method for a drill template type tire, which comprises a pressing fixing assembly and a sleeve pressing assembly. The pressing fixing assembly is used for fixing the drill template type tire to avoid movement of the drill template type tire during sleeve pressing. The sleeve pressing assembly comprises a mandrel, sleeve pressing guide columns and locking cross pins. The main body of the sleeve pressing guide column is a guide column, and a mounting plate is fixed to the lower end of the sleeve pressing guide column. The bottom surface of the mounting plate is fixed with the sleeve pressing guide column through the locking cross pins. The number and position of the sleeve pressing guide columns correspond to drill template holes on the drill template type tire, and the sleeve pressing guide columns are axially perpendicular. The sleeve pressing guide columns are used for mounting the bushings to be pressed. The application no longer needs to knock each drill sleeve for sleeve pressing, and all drill sleeves can be pressed into the drill template type tire by one-time knocking.

The invention provides a pin shaft thread drilling device which comprises a base with a positioning groove, a support capable of being adjusted in a lifting mode is arranged on the base, a guide sleeve located above the positioning groove is rotationally installed on the support, and the guide sleeve is provided with a plurality of drill bushings of different sizes. The device achieves the dual functions of guiding and positioning, is simple and reliable in clamping, improves the working efficiency, achieves the precise machining of holes in the surface of the threaded section, can meet the use requirements, is wide in application range, can machine pin shafts of various sizes, and can guide drill bits of various specifications according to the requirements.

The application discloses a concentric product piece machining tool and method, which comprises a bottom plate, a positioning plate, positioning pins, a first drilling template, a second drilling template, a first drill sleeve, a second drill sleeve, a fixing plate and a pressing push rod. The positioning plate is vertically installed on the bottom plate, and a plurality of positioning pins are arranged on the positioning plate. The first drilling template and the second drilling template are installed on the bottom plate, and are arranged in parallel and at intervals and parallel to the bottom plate. The first drilling template and the second drilling template are respectively embedded with the first drill sleeve and the second drill sleeve, and the first drill sleeve and the second drill sleeve are coaxially arranged. The axes of the first drill sleeve and the second drill sleeve are parallel to the positioning plate. The projection of the axes of the first drill sleeve and the second drill sleeve on the positioning plate is consistent with the distance between the positioning pins. The fixing plate is fixedly installed in the gap between the second drilling template and the bottom plate. The pressing push rod is slidingly arranged in the sliding hole in the fixing plate. The application can process the required product and ensure the product processing quality.

The utility model relates to the field of oil tank drilling, disclose a kind of magnetic oil tank reconstruction drill sleeve, including shell, the shell central position is provided with center cylinder drill bushing, and shell both sides are respectively fixedly installed with transmission assembly, the both sides of shell inside are respectively fixedly installed with magnetic attraction subassembly, and each magnetic attraction subassembly one end is respectively fixedly connected with the middle part of mutually close one end of transmission assembly, the transmission assembly mutually far away one end is respectively fixedly connected with handle, and center cylinder drill bushing side wall is fixedly installed with cross line type laser emitter, the both sides of center cylinder drill bushing are symmetrically provided with chip groove, and shell outside is fixedly installed with the switch of cross line type laser emitter electric connection, the utility model's structure uses the mode of magnetic attraction, so that dismounting is convenient, installation is reliable and will not damage oil tank surface, positioning is accurate and improves production efficiency.

A square hole drill suitable for an electric hammer comprises an electric hammer handle, a shockproof directional sleeve, a contraction guide sliding sleeve, a drill sleeve and a drill core, a directional round pipe arranged on the shockproof directional sleeve is sleeved on a cylindrical pipe on the upper portion of the drill sleeve, a melt nut is arranged on the directional round pipe, a positioning screw hole communicated with the melt nut on the directional round pipe is arranged on the cylindrical pipe, and the drill core is arranged in the positioning screw hole. A bolt is inserted into the melt nut of the directional circular tube and the positioning screw hole; the drill core is arranged in the drill bushing, an internal thread arranged in the electric hammer handle is connected with an external thread arranged on the drill core, and a locking sleeve inserted into the electric hammer is arranged at the upper part of the electric hammer handle; a guide sliding sleeve arranged on the contraction guide sliding sleeve is sleeved with a depth cylinder on the side edge of the electric hammer, meanwhile, a bolt is inserted into an arc-shaped through hole formed in the contraction guide sliding sleeve and a melt nut arranged on the shockproof directional sleeve, and after the position of the arc-shaped through hole is moved, the melt nut on the shockproof directional sleeve is locked through the bolt. The problem of adjustment of different distances between the side edge depth columns of the electric hammers and the drill bushings due to the electric hammers of different sizes can be solved.

The utility model discloses a shaft type pneumatic pressing drilling clamp which comprises a positioning seat, a V-shaped groove and a pressing rod hinged to the top of the positioning seat are arranged on the positioning seat, a top plate is arranged above the positioning seat in an overhead mode, and a drilling sleeve corresponding to the V-shaped groove and a pressing air cylinder capable of pressing the pressing rod downwards are arranged on the top plate. The V-shaped groove has the function of automatically centering the cylinder, and circular shafts with different shaft diameters can be stably supported. When the positioning device is used, a circular shaft workpiece is placed in the V-shaped groove of the positioning seat, the pressing rod is pressed through the pressing air cylinder, and the circular shaft workpiece is pressed from the top, so that the circular shaft workpiece is reliably positioned. Due to the fact that the positioning seat has good applicability to the circular shafts with different shaft diameters, the circular shaft drilling fixture does not need to be frequently replaced to adapt to workpieces with different specifications, generality to circular shaft products is greatly enhanced, switching and dismounting steps of the fixtures with different specifications can be greatly reduced, working hours are saved, and efficiency and quality of circular shaft drilling are remarkably improved.

The application provides a drill bushing assembly and a drill box for automatic anchor support operation, and belongs to the technical field of roadway support. The drill box comprises a drill box body, a drill box motor, a motor transmission shaft, a damping piece, a damping type anchor rod, a drill bushing and a supporting column. The drill box motor and a liquid distribution plate are installed on the drill box body, the drill bushing is connected with the motor transmission shaft to transmit torque, the tray clamping claws are symmetrically assembled on the drill box body in a detachable manner to limit the anchor rod tray, the drill bushing has a damping piece escape hole in the form of double inclined surfaces, the damping piece can escape through the channel during anchoring, and the drill bushing adopts a multi-surface limiting form to make the drill rod more convenient to disassemble. The drill box improves the reliability, prolongs the service life, reduces the labor intensity of automatic anchor support operation, improves the safety and efficiency of operation, and promotes the automation and standardization process of anchor support operation.

The utility model relates to the technical field of machine tool fixtures, in particular to a clamping mechanism for a special-shaped part processing machine tool, which includes a bottom plate, a vertical plate and a top plate. The V-shaped centering frame is slidably connected to the bottom plate through an adjusting device. A supporting device is arranged at the lower end of the second special-shaped end. A pressing device is arranged on the surface of the top plate. The second special-shaped end is pressed against the vertical plate through the pressing device. A first sliding groove is formed on the surface of the top plate, and a drill bushing assembly is slidably connected inside the first sliding groove. In the utility model, since a supporting device is arranged at one end of the special-shaped part close to the vertical plate, by placing the second special-shaped end of the special-shaped part on the supporting bracket, when the special-shaped part is fixed through the pressing device, there is no need to hold the special-shaped part by hand, and the operation is very convenient; the distance between the arranged vertical plate and the V-shaped centering frame can be adjusted, and special-shaped workpieces of different specifications can be clamped, and the use range is wide.

The utility model discloses an adjustable drill bushing tooling, which relates to the technical field of drill bushing tooling, and comprises a fixed seat and a clamping seat, the upper wall surface of the fixed seat is fixedly provided with a fixed frame, the upper wall surface of the clamping seat is connected with a clamping frame in a sliding manner, a reference adjusting table is arranged in the fixed seat in a sliding manner, and the reference adjusting table is connected with the clamping frame in a sliding manner. A lead screw driven by a motor is rotationally connected into the fixing base, the lead screw is connected with the reference adjusting table in a screwed mode, two inserting holes are formed in the connecting end of the reference adjusting table, and a clamping adjusting table is slidably connected into the clamping frame. The reference adjusting table is driven by the lead screw to move up and down, and the clamping adjusting table moves along with the reference adjusting table in cooperation with the inserting block and the inserting hole, so that the height of the drill bushing body is adjusted, and the drill bushing is adaptive to drilling workpieces with different thicknesses; the problems that an existing tool cannot flexibly adjust the machining position according to the thickness of a workpiece, and use limitation is large are solved.

The application discloses a portable multifunctional well washing device, which comprises a support frame, a first support frame which is arranged on the support frame in a liftable mode, a second support frame which is arranged on the first support frame in a liftable mode, a sleeve assembly which is arranged on the first support frame in an upper end mode, a drill rod assembly, a rotary joint, a drill sleeve, a drill bit which is arranged at a lower end of the drill sleeve, a spraying assembly which is arranged on an outer wall of the drill sleeve at the lower end, and a locking piece which is arranged between the drill rod assembly and the drill sleeve; the drill sleeve is coaxially arranged at the lower end inside the sleeve assembly; an inner wall of the drill sleeve is provided with a first chamber and a second chamber; an exhaust port is arranged in the first chamber; and a liquid discharge port which is communicated with the spraying assembly is arranged in the second chamber; the drill rod assembly is coaxially arranged inside the sleeve assembly; an upper end of the drill rod assembly is rotatably arranged on the second support frame; a lower end of the drill rod assembly is rotatably and up-and-down slidably arranged inside the drill sleeve; and a passage which is sealed at the lower end is formed in the drill rod assembly; the passage is communicated with a gas source or a water source through the rotary joint at an upper end; and a through hole is arranged on an outer side wall of the passage at a lower end. The well washing device has the advantages of light structure, various functions, high well washing efficiency and small workload.

The utility model provides a folding type turnover drill jig which comprises a base, a connecting base is installed at one end of the base, a positioning block is installed above the connecting base, a workpiece can be placed on the positioning block and can be positioned in the horizontal direction, and a first pressing assembly used for pressing the workpiece is installed at one end of the connecting base. The two drill plates are arranged on the base and can be turned over; the drilling jig is simple and reasonable in design structure, the positioning block is matched with a step on the bottom face of a workpiece, the workpiece can be preliminarily positioned, the problem that the workpiece moves in the horizontal direction is avoided, the workpiece is fixed through the first pressing assembly, and the two drilling jig plates can be arranged on the two sides of the workpiece at the same time during drilling; the center of the two drill bushings at the ends is coaxial, the requirement for coaxiality of holes in the two sides of a workpiece is met, after machining is completed, the ends of the drill bushings leave a machining area by turning over the folding plates, and the drilling tool has the advantages of being high in positioning precision, easy to operate and wide in application range.

The utility model discloses a ground auger drill bit structure capable of achieving rapid installation, which comprises a ground auger main body, a gear output shaft is arranged on the ground auger main body, and one side or multiple sides of the end part of the gear output shaft are milled to be flat, so that one side or multiple sides of the section of the end part of the gear output shaft are D-shaped; a drill sleeve is fixed to the end of the drill bit, an insertion hole is formed in the drill sleeve, and the shape of the section of the insertion hole is the same as that of the section of the end of the gear output shaft; the gear output shaft and the drill bushing are both provided with mounting holes in the radial direction, after the gear output shaft is inserted into the drill bushing, the mounting holes in the gear output shaft and the drill bushing are aligned, the cross section of the end of the gear output shaft and the cross section of an insertion hole are in a single-side-milled D shape or a double-side-milled double-D shape or a polygon, and during mounting, the end of the gear output shaft is inserted into the drill bushing. A conventional ground drill does not need to rotate a gear output shaft to align a mounting hole, and fool-proof mounting is achieved.

This utility model discloses a drilling sleeve device for mining, including a header, a drill barrel, a spindle, a bracket, a feed header, a drive mechanism, and a hydraulic cylinder. The drill barrel is movably installed inside the header. The front end of the spindle is coaxially connected to the drill barrel via a center drill. The bracket is rotatably connected to the spindle via bearings, and both ends of the bracket are slidably connected to the header. The feed header is fixedly connected to the header. The drive mechanism includes a motor and a slide block. The motor is fixed to the slide block, and the motor output shaft is connected to the spindle. The slide block is slidably connected to the feed header. The cylinder body of the hydraulic cylinder is fixed inside the header, and the piston rod is connected to the motor of the drive mechanism. The base is fixedly connected to the feed header. This utility model adopts a double-protrusion-slide groove fit between the bracket and the slide block to form a two-stage axial guide. It synchronously constrains radial displacement from the middle of the spindle and the drive end, significantly suppressing drilling vibration, reducing wear on the drill barrel and drill rod, and improving drilling accuracy and equipment life.