476 results about "Reamer" patented technology

The invention discloses a reamer electromechanical driving mechanism and method capable of detecting the position state of a blade, and relates to the technical field of tools of petroleum drilling engineering, the reamer electromechanical driving mechanism comprises a power assembly, a lead screw assembly, an ejector rod, a locking assembly, a rotation detector and a displacement detector which are mounted in a drill collar; the power assembly is connected with the lead screw assembly, the lead screw assembly is connected with the ejector rod, the ejector rod is connected with the reamer blade, the power assembly rotates and drives the ejector rod to move up and down through the lead screw assembly, and the ejector rod moves up and down to drive the reamer blade to be unfolded or folded. The locking assembly is assembled on the ejector rod, and after the reamer blade is unfolded in place, mechanical self-locking is conducted on the ejector rod. The rotation detector is assembled beside the lead screw assembly to detect rotation of the lead screw assembly, and the displacement detector is assembled beside the ejector rod to detect up-and-down movement of the ejector rod. The opening and closing state of the cutter wing is measured and uploaded through the rotating detector and the displacement detector, the cutter wing is expanded in place, the underground condition can be judged easily, and controllable multiple reaming is achieved.

The invention relates to the technical field of program control, in particular to a reamer machining path intelligent optimization method and system based on artificial intelligence, and the method comprises the following steps: collecting a reamer main shaft load torque and a Z-axis feed current in the process that a reamer cuts into a workpiece, and generating a reaming contact area resistance characterization quantity; and mapping the resistance characterization quantity of the reaming contact area to generate a hardness distribution characteristic value of the workpiece material. According to the method, differential operation is carried out on a generated nonlinear track, the acceleration change rate of the nonlinear track is extracted, the dynamic complexity of a motion state is quantitatively evaluated, the dynamic complexity is combined with a contour error predicted by AI, a dynamically weighted feed-forward compensation amount is formed, and when a motion instruction is complex and the system following capability faces challenges, the compensation effect is enhanced; according to the predictive compensation mechanism, active suppression can be carried out before the servo error actually occurs, and the contour tracking precision of a complex nonlinear instruction is improved.

The invention relates to the field of reaming machines, and discloses an automobile safety belt bulb tube reaming tool which comprises a reaming table, a fixing seat is arranged in the middle of the upper face of the reaming table, a clamping structure is arranged on the fixing seat, a bulb tube is clamped and fixed on the reaming table through the clamping structure, and the reaming structure is moved to move back and forth. According to the ball tube reaming device, automatic reaming work is conducted on tube openings of ball tubes, the ball tubes can be automatically switched in the process that the movable reaming structure moves back and forth in a reciprocating mode in cooperation with a rotary switching structure, a lifting structure, a gear structure and a driving structure, reaming work of the tube openings in the two ends of the ball tubes is achieved while the positions of the ball tubes do not need to be adjusted again, and operation is more labor-saving and convenient. And meanwhile, by arranging the adjusting structure, the rotating angle can be flexibly adjusted according to the position of the port of the bulb tube, so that the position of the port of the bulb tube can be smoothly switched for reaming in the reaming process of the movable reaming structure, and the use is more flexible and convenient.

A reamer includes a shank portion extending from a rear end and a cutting portion extending from the shank portion to a front end. The cutting portion includes a plurality of cutting teeth separated by gashes. Each cutting tooth having a cutting edge extending in a longitudinal direction from the front end to proximate the shank portion. The cutting portion includes a margin trailing each cutting edge and extends along each cutting edge to proximate the shank portion. Each cutting tooth also has a primary relief formed between the cutting edge and the front end and a secondary relief extending longitudinally between the margin of one cutting tooth to the cutting edge of an adjacent cutting tooth. A width, W, of each cutting tooth increases in a radially outward direction with respect to the central, longitudinal axis when viewed from the front end of the reamer.

The invention discloses an expansion pin assembly for a split reamer bit, the split reamer bit and an assembling method. The expansion pin assembly for the split type reamer bit comprises an expansion pin shaft sleeve, an expansion pin bolt and an expansion pin nut. An expansion head is arranged at one end of the expansion pin shaft sleeve, a first circular truncated cone through hole is formed in the expansion head, and the hole wall surface of the first circular truncated cone through hole is a first circular truncated cone surface; a locking head is arranged at one end of the expansion pin bolt, and the outer surface of the locking head is a second circular truncated cone face matched with the first circular truncated cone face. And when the expansion pin bolt is completely inserted into the expansion pin shaft sleeve, the second circular truncated cone surface is tightly attached to the first circular truncated cone surface. According to the expansion pin assembly, through the self-locking effect between the first circular truncated cone face and the second circular truncated cone face, the loosening phenomenon in the construction process can be effectively prevented, mechanical self-locking is achieved, an anti-loosening device such as a locking nut or a cotter pin does not need to be additionally arranged, and the connection reliability is greatly improved.

This invention relates to a reamer assembly (6) for enlarging a substantially horizontal pilot hole (14) in the ground to produce a bore hole (18), including a cutter (21) which is rotatable about an axis X-X. A gear box (20) is positioned on a first side of the cutter (21) for interacting with a drive shaft (33) which is rotated about the axis X-X by a drive apparatus (2) outside the pilot bore hole (14) and a body (15) positioned on a second side of the cutter (21) for transferring thrust from a thrust apparatus (4) outside of the enlarged bore hole (18) to the cutter (21).

The application provides a novel reaming drill bit device and a reaming method thereof, which comprises a reaming drill bit and a drill rod connector, the reaming drill bit comprises a drill bit base, a hollow bolt, a limiting block, a spring, a sliding rod and a cutter, one end of the drill rod connector is connected with a drill rod, and the other end of the drill rod connector is connected with the drill bit base; symmetric sliding grooves are formed on both sides of a cutting seam of the drill bit base; the cutter is fixed in the sliding groove through a sliding rail, and is automatically opened by sliding down along the sliding groove under resistance to rotate and ream; the cutter pushes the sliding rod to slide down to compress the spring, the drill rod is withdrawn after reaming, the spring pushes the sliding rod to slide up to drive the cutter to slide up, and the cutter returns to the original position; the drill rod in the hole is completely withdrawn, and cylindrical reaming is formed; the application only needs to replace the drill bit after drilling a relatively short hole, realizes reaming while drilling, and forms the reaming structure at one time, so that the workload of replacing the reaming drill bit can be greatly reduced; and the rock breaking capacity is relatively high, and the application is suitable for a relatively wide range of rock layers.

The application discloses a pipeline worm cooperation type pipeline back dragging method, which comprises the following steps: a, construction of a guide hole, including a guide entry hole, a guide hole channel and a guide exit hole, and hole cleaning work; b, preparation of a back dragging pipeline on the ground, and preparation of a pipeline worm, connection of the pipeline worm and the back dragging pipeline through a buckle, connection of a reamer and a drill rod at the other end of the pipeline worm; the drill rod, the reamer, the pipeline worm and the back dragging pipeline enter the guide entry hole, and then the drill rod pulls the reamer, the pipeline worm and the back dragging pipeline to conduct pipeline back dragging in the guide hole channel. The pipeline worm cooperation type back dragging can reduce anticorrosive layer damage, ensure smooth pipeline entry into a hole, reduce construction risks such as drill tool fracture, and can play a lever role to avoid pipe clamping caused by a non-smooth hole curve, improve one-time back dragging success rate, indirectly protect an ecological environment, shorten a construction period and reduce engineering cost.

The utility model discloses a guide drilling tool for horizontal directional drilling pipe laying construction, which comprises a drill rod, a probe chamber and a replaceable drilling tool which are connected in sequence, and during complex stratum construction, a guide drill bit at the front end of the probe chamber can be quickly replaced by a drill bit suitable for different geological conditions for drilling operation through a second connecting sleeve. Or the reamer is replaced for reverse reaming operation. According to the utility model, the drill bit is quickly and conveniently detached; besides, during reverse reaming operation, due to the fact that the probe chamber is reserved, when the drill bit or the reamer is clamped by debris such as broken stones and metal pieces in the ground layer, the accurate clamping position of the drill bit or the reamer can be obtained by means of a detection signal sent by the probe in the probe chamber, accurate basis is provided for troubleshooting treatment, and construction efficiency is improved.

The utility model relates to a seeding machine with soil splitting and pressing functions, which comprises a rack, a self-propelled pressing roller, a soil splitting pressing roller, a rotary tillage cutter shaft, a main gear box, a reamer shaft, a fertilizer box connected with a fertilizer discharging pipe, a seed box connected with a seed discharging pipe and a land wheel, the land wheel, the reamer shaft, the rotary tillage cutter shaft, the soil splitting press roller and the self-propelled press roller are rotatably supported on the rack in sequence from front to back according to the advancing direction of the seeder, the main gear box, the fertilizer box and the seed box are arranged on the rack, and the main gear box is in transmission connection with the rotary tillage cutter shaft; the first transmission pair is in transmission connection with the reamer shaft; the reverse transmission shaft and the second transmission pair are in transmission connection with the soil dividing and pressing roller, and the rotation direction of the soil dividing and pressing roller is opposite to that of the rotary tillage cutter shaft. The device has the beneficial effects that the problem of uneven depth caused by soil sinking after soil compaction and sowing is solved, and a good soil condition is created for sowing.

The present invention is a hydraulic control apparatus (10) that activates and deactivates a downhole tool, such as a reamer, at a desired downhole location in a borehole. The apparatus includes a piston (20), a housing (40), a coil spring (48), and a guide pin (80). The piston (20) has a cam portion (26) with a continuous slotted groove (62). There is a slide member (64) and a force member (66) within the slotted groove so that the piston moves longitudinally and rotationally within the housing according to the guide pin within the slotted groove. At the desired downhole location, drilling fluid pressure passes a pressure threshold to move a front outlet of the piston to an opened position past an end of the housing, while rotating the piston according to the slide member and force member in the slotted groove. The apparatus alternately extends and retracts the reamer by opening and closing the front outlet by hydraulic control.

Reaming tool for reaming very precise bores, especially in gray and ductile iron, comprising a clamping element adapted for clamping in the clamping devices of machine tools, and a cutting element according to the invention, on the circumferential part of which at least two cylindrical longitudinal support surfaces with an angular distance of 60° to 160° are formed, and on the remaining circumference of the cutting element at least three cutting teeth with longitudinal cutting edges and face cutting edges are formed, wherein a cylindrical longitudinal support surface is formed behind the first cutting tooth in the working direction of rotation and the other cylindrical longitudinal support surface is formed in front of the last cutting tooth in the working direction of rotation, characterized in that at the first cutting tooth (4) the distance (L1) of the intersection point (P1), i.e. the longitudinal cutting edge (9) and the inclined cutting edge (10), from the face plane (π) is smallest and at the last cutting tooth (4'') the distance (L1'') of the intersection point (P1'')that is, the longitudinal cutting edge (9'') and the inclined cutting edge (10'') are greatest from the face plane (π), and at least one cutting tooth (4') is formed between the cutting teeth (4) and (4'') with a distance (L1') of the intersection point (P1'), i.e., the longitudinal cutting edge (9') and the inclined cutting edge (10'), from the face plane (π), wherein, for individual cutting teeth (4') and (4), the distances (L1') and (L1) of the intersection points (P1') and (P1) from the face plane (π) decrease from the distance (L1'') in the working direction of rotation, and the distances (L2) and (L2') between the face plane (π) and the intersection points (P2) and (P2'), i.e., the cylindrical longitudinal support surfaces (6) and (6') and the lead-in surfaces (5) and (5'), decrease by at least 0.2 mm as the distance (L1'') between the frontal plane (π) and the intersection point (P1'') are larger.

The present application belongs to the field of coal mine drilling, and particularly relates to a reamer for directional long drilling of coal seams; the reamer comprises a reamer barrel, a strip-shaped groove is uniformly formed on the inner wall of the reamer barrel along the circumferential direction, a cutter seat is slidably arranged in the strip-shaped groove, and a cutter wing is mounted on the cutter seat; a top plate penetrating through the cutter seat is further hingedly arranged on the cutter seat, a driving part for driving all the cutter seats to synchronously slide up and down in the strip-shaped groove is further arranged in the reamer barrel, and the cutter wing is used for adjusting the position of the cutter wing protruding from the outer wall of the reamer barrel and further adjusting the cutting diameter during the up-and-down sliding of the cutter seat in the strip-shaped groove; the driving part further cooperates with the top plate to drive the top plate to swing and remove the coal ash in the gap of the cutter wing; the present application reduces the abrasion from layered cutting, cooperates with self-cleaning and heat dissipation to maintain the cutting efficiency, dynamically adjusts the hole diameter and real-time performs the hole wall trimming during the reaming process, and forms a functional closed loop from the local to the whole to jointly solve the problems of tool life, chip removal and hole forming accuracy in the reaming of hard coal seams.

The utility model belongs to the technical field of product processing equipment, and particularly relates to a crusher. Comprising a frame, a progressive part end cover, a progressive wheel, a guide shaft and a smashing wheel, the progressive part end cover is arranged at the upper end of the frame, the progressive wheel is rotationally connected to the front end of the progressive part end cover, the guide shaft is arranged at the rear end of the progressive part end cover, and the smashing wheel is arranged on the progressive part end cover. The rear end of the progressive part end cover is rotationally connected with the frame through the guide shaft; the crushing wheel is rotationally connected to the frame, the progressive wheel is located on the front side of the crushing wheel, and a reamer is arranged on the crushing wheel. Materials are placed at the lower end of the progressive wheel, the progressive wheel tightly presses the materials under the gravity of the end cover of the progressive part, the progressive wheel rotates to drive the materials to move backwards, it is ensured that the materials are tightly pressed and then transferred to the smashing wheel, the materials are conveniently smashed and cut through rotation of the smashing wheel, and the good smashing effect is achieved.

The mechanical reamer for the rock burst mine well disclosed by the application comprises a drill rod, one end of the drill rod is connected with a drill bit, the other end of the drill rod is provided with a screw thread in the outer periphery, the drill bit is provided with a plurality of spray holes, the outer side of the drill rod is symmetrically provided with embedding grooves consistent with the length direction of the drill rod, the embedding grooves are all provided with telescopic reaming cutters, the drill rod is further provided with high-pressure pipelines, the high-pressure pipelines are respectively communicated with the embedding grooves and the spray holes, springs are arranged in the high-pressure pipelines, and the springs are connected with the telescopic reaming cutters. The mechanical reamer for the rock burst mine well can adjust the size of the reaming pressure relief drilling hole diameter, and also has the advantages of the forward and backward reaming modes, and has the better rock burst prevention effect.

The drilling and reaming integrated cutter for the engine cylinder block relates to the technical field of engine cylinder block machining and comprises a drill bit and a reinforcing assembly, a cutter containing groove is formed in the side edge of the drill bit, a reamer is arranged in the cutter containing groove, a fixing hole is formed in the side edge of the reamer, an inserting rod is installed at the lower end of the reamer, and the inserting rod is connected with the reinforcing assembly. The reinforcing assembly used for installation and reinforcement is arranged at the lower end of the interior of the cutter containing groove and comprises a reinforcing plate, a limiting hole, a spring and an inner groove, the limiting hole is formed in the middle of the upper end of the reinforcing plate, the spring is installed at the lower end of the reinforcing plate, and the inner groove is formed in the outer portion of the spring. According to the drilling and reaming integrated cutter for the engine cylinder body, the cutter containing groove is used for positioning and rapid installation of the reamer, after the cutting edge of the detachable and replaceable reamer is abraded, the cutter can be continuously used by replacing the blade, the grinding and replacing cost of the cutter is reduced, the service life of the cutter is prolonged, and the machining efficiency of the cutter is improved.

The invention discloses a horizontal directional drilling pipe laying construction device and a construction method thereof, and relates to the technical field of drilling pipe laying construction. The device comprises a drill rod, one end of the drill rod is in threaded connection with a reamer, the end, away from the drill rod, of the reamer is provided with a mounting frame, one end of the mounting frame is rotationally connected with a butt joint block in threaded connection with the reamer, and the end, away from the reamer, of the mounting frame is provided with a transmission assembly; and the transmission assembly comprises a fixing rod fixedly connected with the center position of the mounting frame, the top end of the fixing rod communicates with the butt joint block, and compaction assemblies are arranged on the two sides of the fixing rod. The compaction assembly is used for conducting compaction operation on the inner wall of a hole synchronously through the pressing plate while reaming is conducted, the construction efficiency and safety are improved, meanwhile, multi-directional compaction on the hole wall is achieved, the risk of hole collapse is reduced to a certain degree, and the problem that the stability of the hole wall is insufficient after traditional reaming is conducted is solved.

The utility model relates to the technical field of high-precision reamers, and discloses a fine-adjustable reamer which comprises a reamer handle, an adjusting fixing block is fixedly connected to the top of the reamer handle, and a T-shaped sliding groove is formed in the top of the adjusting fixing block. The limiting ring is rotated through the operation groove, so that the limiting ring rotates along the limiting groove, the limiting ring drives the hexagonal adjusting block, the hexagonal adjusting block rotates the threaded rod through the hexagonal avoiding groove, and the threaded rod rotates and descends towards the interior of the reamer handle along the adjusting fixing block; the inner wall of the threaded rod slides downwards along the outer wall of the adjusting block through the hexagonal receding groove, meanwhile, the threaded rod pulls down the adjusting block, so that the adjusting block extrudes the reamer outwards through the inclined face, the reamer drives the T-shaped sliding block to expand outwards along the T-shaped sliding groove, the size of the reamer after abrasion is made up, and the flexibility of the reamer is improved. And the scrapping probability of the reamer is reduced, so that higher machining precision and flexibility are ensured.

The utility model discloses a device for detecting the expansion degree of an expansion body anchoring structure and the expansion degree of a reaming drilling tool in construction, which comprises a system controller and a display arranged outside a drill hole, and an angular displacement sensor and / or a linear displacement sensor arranged in the expansion body anchoring structure or on an overhanging component or in the reaming drilling tool and connected with the system controller; the expansion anchoring structure comprises a front disc, a rear disc, a folding rod, a hinge and an anchor bar which are fixedly connected or fixedly connected in a one-way mode or arranged on the expansion anchoring structure in a U-shaped penetrating mode; the chambering drilling tool is an umbrella-shaped chambering drilling tool or a forward and reverse rotation retractable chambering drilling tool; the umbrella-shaped chambering drilling tool comprises a front disc, a rear disc, a long rod, a short rod, a front hinge, a middle hinge, a rear hinge and a longitudinal column B; the forward and reverse rotation retractable chambering drilling tool comprises a chambering cutter and a chambering cutter hinge. And the umbrella-shaped reaming drilling tool and the forward and reverse rotation retractable reaming drilling tool are connected with the drilling machine through a drill rod. Furthermore, the linear displacement sensor cannot be contacted.

1. The name of the design product: reamer. 2. The use of the design product: the cutter for enlarging the inner hole or cutting the end face of various plastic pipes (such as PVC pipes, etc.), usually used with electric drill. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view.

1. Name of the product in this design: Tool Diameter Measuring Instrument. 2. Purpose of this design: to quickly measure the diameter of milling cutters, drill bits, and reamers. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model belongs to the field of feeding equipment, and particularly relates to feeding equipment for rice processing, which comprises a feeding box, a vibrating mechanism is arranged on the outer side of the feeding box, a spindle is mounted in a feeding pipe of the feeding box through a bearing, a reamer is fixedly connected to the outer side of the spindle, a first motor is fixedly mounted at the upper end of the feeding box, and a second motor is fixedly mounted at the lower end of the feeding box. A screening plate is slidably connected to the upper end of a hopper of the feeding box, a storage hopper is fixedly connected to the upper end of the screening plate, four evenly-distributed connecting frames are fixedly connected to the outer side of the screening plate, and guide frames are slidably connected to the interiors of the connecting frames. The screening plate, the driving ring, the storage hopper and other structures are additionally arranged on the feeding box, the screening plate can be driven by the driving ring to move front and back in the feeding process of the feeding box, and raw materials in the storage hopper can be screened in the moving process of the screening plate; and therefore, sundries such as stones can be effectively prevented from entering the interior of the feeding box.

A reaming device including reamers that are prevented from cutting until the reaming device encounters a wellbore restriction, such as a restricted diameter of the wellbore or a ledge. The reamers arc shielded in the reaming device's default position until the device is activated by a wellbore restriction, thereby moving the device into the activated position in which the reamers are allowed to cut or clean the wellbore. The reaming device of the present invention is passively activated; no communication with the surface is necessary for activation.

The utility model provides an oxygen-free copper hardware small hole drilling reamer which is mainly composed of a cutter bar, and the cutter bar is divided into a cutting edge section and a cutter handle section. The cutting edge section is provided with the cutter tip end and the four cutting main edges spirally arranged in the axial direction of the cutter bar, the width of the cutting main edges is controlled to range from 0.1 mm to 0.2 mm, the contact area in the cutting process is effectively reduced, the adhesive force is reduced, and the cutter sticking phenomenon is reduced. The spiral arrangement of the cutting main edge enhances the shearing effect in the cutting process and promotes smooth separation and discharge of cuttings. The four cutting main blades are symmetrically arranged, and the included angle is controlled between 89.85 degrees and 90.15 degrees, so that chips are ensured to be subjected to uniform cutting force and shearing force, and the cutting chips are favorably broken and fragmented. Due to the design of the chip grooves, the chip discharging process is less blocked, chips can be smoothly and rapidly discharged out of the hole, accumulation and winding of the chips are avoided, and the chip breaking performance is improved. The drilling reamer is reasonable in design, and the machining efficiency and quality of the oxygen-free copper hardware small hole are effectively improved.

The invention relates to the technical field of machining tools, and discloses a vertical double-station damper cylinder reaming machine which comprises a rack, a chip removal mechanism, a workpiece part and a cutter part, the workpiece part and the cutter part are arranged on the rack, the workpiece part comprises a first clamping piece and a second clamping piece which are arranged in a vertically spaced mode, and the first clamping piece is vertically and rotatably arranged on the rack; the workpiece part further comprises a first driving part and a second driving part, the first driving part drives the second clamping part to descend to clamp a workpiece between the first clamping part and the second clamping part, and the second driving part drives the first clamping part to rotate and drives the workpiece to rotate synchronously. And the cutter part comprises a reamer and a driving piece III for driving the reamer to vertically lift. When the reamer is used for machining, scrap iron generated during machining and cooling liquid on the reamer can fall off from the through hole, are collected and discharged by the scrap discharging mechanism and cannot be accumulated in a hole of a workpiece, and the machining precision is effectively improved.

The invention relates to a conveying device, in particular to a carbon powder conveying device and method for aluminum carbon flue gas treatment. Comprising a carbon powder adsorption reactor, wherein an arch breaking device is arranged below the carbon powder adsorption reactor; wherein the carbon powder adsorption reactor structurally comprises a shell, a material mixing and arch breaking cone is arranged at the center in a cavity of the shell, the material mixing and arch breaking cone is fixed by a supporting piece, a feeding pipe inserted into the cavity of the shell is arranged at the lower part of the shell, and the bottom of the shell is connected with a throat; the arch breaking device is structurally characterized in that a reamer is arranged at the bottom in a cavity of the ash bucket and fixed on a reamer shaft, two ends of the reamer shaft respectively penetrate through the wall of the ash bucket, one end of the reamer shaft is connected with a motor driving device, and the other end of the reamer shaft is connected with a shaft seat. The equipment is convenient to overhaul and maintain. And the carbon powder conveying process is short, the contact between the carbon powder and the external environment, especially low-temperature gas, is small, and the carbon powder hardening probability is fundamentally reduced.

The utility model discloses a reaming device for spinneret plate processing, which relates to the field of spinneret plate processing and comprises a driving motor. The top of the reamer bit is in transmission connection with the output end of the driving motor; the protection mechanism is arranged outside the reamer bit, and the protection mechanism is used for supporting and protecting the reamer bit; and the positioning mechanism is arranged on the protection mechanism, and the positioning mechanism is used for installing and fixing the protection mechanism. The nut is rotated on the mounting rod, so that the nut horizontally moves along the mounting rod, the nut pushes the mounting base to move on the mounting rod, the mounting base drives the top of the supporting rod to move together, the bottom of the supporting rod drives the protective sleeve to move upwards, and the inner wall of the protective sleeve is tightly attached to the outer wall of the reamer bit. The reamer bit is protected, the supporting rod supports the protection sleeve and the reamer bit, damage to the reamer bit is reduced, and the service life of the reamer bit is prolonged.

The utility model relates to the technical field of flange processing, concretely to a kind of flat welding flange reaming device, including workbench, reaming subassembly and bearing assembly, the bearing assembly is arranged to two groups of symmetry and is arranged on the workbench, the bearing assembly includes support plate, mounting plate and bearing plate, the support plate is close to the bearing plate being arranged on the upper side of workbench center one end, the support plate is close to the mounting plate being arranged below workbench center one end, several groups of reamer under lifting plate can be aligned simultaneously in the reaming position of flat welding flange in bearing groove, and the reaming operation of multiple holes can be completed in single action;The bearing groove of bearing plate is designed according to the shape of flat welding flange, and horizontal displacement can be limited by groove wall after flange is placed;The reaming position is positioned in advance in the processing hole on the bearing groove, manual calibration is not needed repeatedly, two groups of bearing assemblies are symmetrically arranged, there is gap between two groups of bearing assemblies, it is convenient to clean equipment, and then guarantee subsequent material fixation stability.

The utility model belongs to the technical field of constructional engineering, and particularly relates to a reamer for constructional engineering, which comprises a support frame and an adjusting device, the surface of the support frame is slidably connected with a driving part, and the bottom end of the driving part is fixedly connected with a drill cylinder; the adjusting device is arranged at the bottom end of the supporting frame and comprises a containing frame, the containing frame is located under the supporting frame, two sliding rods are fixedly connected to the surface of the containing frame, the surfaces of the two sliding rods are slidably connected with the inner wall of the supporting frame, a threaded rod is rotatably connected to the surface of the containing frame, and a moving block is fixedly connected to the side wall of the supporting frame. A positioning device is arranged on the surface of the placement frame and comprises a connecting block, the two sides of the connecting block are fixedly connected with the surface of the supporting frame, the inner wall of the connecting block is in threaded connection with a push rod, and the side wall of the push rod is rotationally connected with a top block; by arranging the whole device, the position of the supporting frame can be conveniently adjusted, and meanwhile the device can adapt to materials of different specifications according to requirements.

The utility model discloses an in-situ test device for testing hot melt settlement of frozen soil. The in-situ test device comprises a steel pipe, a conversion joint connected to the center of the top of the steel pipe, and a drill rod connected with the top of the conversion joint, the upper part of the drill rod is connected with a drill; a spiral and hollow copper pipe is tightly attached to the interior of the steel pipe, the lower portion of the adapter is connected with a piston located in the steel pipe through a connecting rod, the space between the bottom of the piston and the bottom of the steel pipe is a heating cavity, and the interior of the heating cavity is used for containing a frozen soil sample; the bottom of the steel pipe is in screwed connection with a reamer, the bottom of the reamer is connected with a drill bit, and the heating cavity is filled with a cylinder sample cut by the drill bit through the reamer. The device disclosed by the utility model has the advantages of simple structure, clear principle, less material consumption, low manufacturing cost, convenience in assembly and strong adaptability, avoids the problem that an indoor test and a field test need a non-disturbance sample, and improves the accuracy of acquired data and the success rate of the test.