31results about "Picks" patented technology

The utility model discloses an electric pick with a dual protection mechanism, which comprises a shell, a motor and a rotary impact component are arranged in the shell, one end of the rotary impact component is fixedly connected with a clamp, a drill bit is mounted on the clamp, a first gear is fixedly connected onto a rotating shaft of the motor, and a first transmission shaft is rotatably mounted in the shell. The upper end of the first transmission shaft is fixedly connected with a second gear, the edge of the second gear is hinged to a piston in the rotary impact assembly through a crankshaft connecting rod, the lower end of the first transmission shaft is fixedly connected with a third gear, and the third gear is in transmission connection with a transmission gear on an air cylinder in the rotary impact assembly through a clutch assembly. When the drill bit is locked, torsion is transmitted to the second transmission shaft through the transmission gear, and when the torsion value is larger than the elastic force of the spring, the clamping ball is forced to rotate to be separated from the coupling groove and pressed into the groove, so that the fourth gear cannot drive the disc to rotate, the machine reaches a no-load state, and the safety of a user is guaranteed.

The utility model discloses a kind of electric grab convenient for motor disassembly and assembly.The utility model includes: shell, the bottom of the shell is provided with motor compartment, the bottom end inside the motor compartment is provided with fixed frame and motor, the bottom of the motor compartment is provided with base;Base, the middle position of the top of the both sides of base is rotatably provided with knob, the middle position of the top of one side inside the base is provided with locking structure.The utility model is provided with locking structure, by locking structure and abutment cooperation, the disassembly and assembly between base and motor compartment are facilitated, then by clamping block and fixed frame cooperation, the disassembly and assembly between motor and motor compartment are facilitated, motor disassembly and assembly procedure are simplified, unnecessary component disassembly and assembly procedure is reduced, disassembly and assembly work hour is reduced, and work efficiency is improved.

The utility model discloses an electric pick with dustproof and cooling functions, which belongs to the field of electric picks and comprises an electric pick main body, a piston cylinder is arranged on the electric pick main body, a piston rod is arranged in the piston cylinder, and a mounting head is arranged at the tail end of the piston rod. The heat dissipation cover is arranged, the exhaust fan is arranged on the inclined face of the heat dissipation cover and used in cooperation with heat dissipation fins, heat in the piston cylinder is extracted while heat in the electric pick body is exhausted, heat dissipation and cooling can be effectively conducted, a dustproof air inlet structure is adopted, a sliding block is arranged in a movable hole and used in cooperation with a rotating rod and a scraping plate, and the heat dissipation effect is good. The dust screen can be cleaned regularly, the air inlet effect of the dust screen is guaranteed, the rotating rod is rotated through the control rod during dust cleaning, the scraping plate makes contact with the dust screen to conduct cleaning work, after the control rod is loosened, the scraping plate rotates and resets through the rotating rod under the action of the V-shaped elastic piece, at the moment, the scraping plate does not make contact with the dust screen, and normal use of the dust screen is not affected.

The electric pick comprises an electric pick body, buffer grooves are formed in the two sides of the electric pick body, floating type damping mechanisms are installed in the buffer grooves in a sliding mode, grab handles are fixedly installed at one ends of the floating type damping mechanisms and penetrate out of the buffer grooves, and rubber ring pads are fixedly installed on the upper surfaces and the lower surfaces in the buffer grooves. And the rubber ring pad is propped against the grab handle. According to the electric pick, through the design of the floating type damping mechanism, double buffering can be applied to the electric pick body, the double buffering mechanism of the electric pick can more thoroughly reduce residual vibration, the electric pick can provide effective buffering under different vibration frequencies and strengths, and through the design, vibration absorption is more comprehensive, and adaptability is higher.

The application relates to the field of electric excavators, in particular to an electric excavator with an angle positioning function, which comprises an electric excavator body, a handle is arranged on the left side of the electric excavator body, an electric excavator shovel is arranged through the right side of the electric excavator body, a dust falling mechanism is arranged in the electric excavator body, the dust falling mechanism comprises a horizontal pipe, a partition plate is connected to the inner wall of the horizontal pipe, an extension pipe is connected to the right side of the partition plate, a connecting plate is connected to the right side of the extension pipe, a one-way liquid outlet valve is communicated with the top of the extension pipe, a first hose is communicated with the top of the one-way liquid outlet valve, a first circular ring pipe is communicated with the right side of the first hose, and a spray head is communicated with the right side of the first circular ring pipe. The application can extrude the liquid in the inner cavity of the extension pipe, the liquid is sprayed out through the spray head, the external concrete is treated, the external dust is prevented from being scattered in the air to pollute the environment, the working environment is protected, and the operator is protected.

The utility model discloses a pickaxe head easy to carry and store, which is characterized in that one end of an adjusting handle is fixedly connected with a connecting stud, the outer side of the connecting stud is in threaded connection with a pickaxe handle, a hanging sleeve is embedded into the outer side of one end of the pickaxe handle, the outer side of the adjusting handle is respectively provided with a mounting groove and a sliding groove, and the inner side of the sliding groove is movably connected with a sliding block; a mounting frame is movably connected to the inner side of the mounting groove, a fixing pin is movably connected to one side of the mounting frame in a penetrating mode, a pickaxe sleeve is fixedly connected to the outer side of the mounting frame through the fixing pin, a threaded groove is formed in the outer side of one end of the adjusting handle, and a fixing sleeve is in threaded connection to the outer side of the adjusting handle through the threaded groove; according to the portable pickaxe, the fixed sleeve, the mounting groove, the mounting frame, the sliding groove and the sliding block are arranged, so that the pickaxe can be folded, the position of the pickaxe can be adjusted after the pickaxe is folded, the space occupied by the pickaxe during carrying is reduced, and the pickaxe is convenient to carry and store.

The utility model discloses an electric pick for construction in the technical field, which comprises an electric pick main body, the outer side wall of the electric pick main body is sleeved with a fixing sleeve, the lower wall of the fixing sleeve is provided with an auxiliary grip, the side wall of the auxiliary grip is provided with a dust falling mechanism, and the dust falling mechanism comprises a water spraying pipe, an atomizing nozzle, a connecting sleeve, a protective net cover and a positioning ring. A water spraying pipe is rotationally installed on the side wall of the auxiliary grip, an atomizing nozzle is inserted into the end of the water spraying pipe, a connecting sleeve is connected to the outer side of the water spraying pipe in a sleeving mode and can slide on the outer side of the water spraying pipe, a protective net cover is rotationally installed on the inner wall of the connecting sleeve and arranged in front of the atomizing nozzle, and a positioning ring is installed on the inner side wall of the connecting sleeve. According to the electric pick, the dust falling mechanism is arranged at the auxiliary grip of the electric pick, water mist is sprayed out through the atomizing nozzle, dust falling treatment can be conducted on smoke dust generated when the electric pick body is used, and therefore the smoke dust is prevented from affecting the body health of constructors.

The present invention discloses an electric pick, including a stator, a handle, a crankcase, a stator shell, an impact piece and a steering sleeve, wherein the inner side of the bottom of the stator shell is fixedly installed with the outer side of the bottom of the stator, and a rotating shaft is movably installed at the bottom of the handle. The electric pick is provided with an oil seal cover, and when the electric pick is used, the handle is held by hand, and the damping plate is pressed down. After the switch capacitor supplies power to the motor, the motor drives the large gear to rotate through the rotor gear shaft, and an eccentric wheel is clamped on one side of the top of the large gear through an eccentric shaft pin. When the eccentric wheel rotates at the top of the large gear, the top of the eccentric shaft pin slides inside the sleeve, and the sleeve limits the eccentric shaft pin to prevent the eccentric shaft pin from driving the eccentric gear due to the increase in the shaking range, thereby damaging the impact hammer and the piston cylinder. At the same time, the first bearing and the first skeleton oil seal limit the rotor gear shaft to prevent the rotor gear shaft from swinging violently when the rotor gear shaft rotates at high speed, thereby protecting the rotor gear shaft and the teeth of the large gear from being damaged.

The utility model relates to an ice beating pickaxe for a tunnel, and relates to the technical field of railway contact networks. The pickaxe comprises a pickaxe insulating plate, a through hole is formed in the center of the pickaxe insulating plate, and a pickaxe insulating rod is inserted into the through hole; the arc-shaped plate is arranged at the position, corresponding to the through hole, of the pickaxe insulating plate; the connecting assembly is arranged in the pickaxe insulating rod, and the connecting assembly comprises a movable sleeve which is arranged in a sliding mode; the mechanical strength of the ice breaking pickaxe head is effectively improved, the problem that an original applicable product is frequently broken due to high-strength use can be effectively solved, the operation completion rate is better guaranteed, and meanwhile time wasted by replacement of a new tool and the cost for purchasing the new tool are reduced; and a novel connecting method is adopted, so that the ice-beating pickaxe is more convenient to disassemble and assemble, the operation time is reduced, and potential safety hazards caused by inconvenient disassembly and assembly of the ice-beating pickaxe can be reduced.

The utility model discloses an auxiliary dismantling device for municipal pipeline replacement, which relates to the technical field of pipeline dismantling devices, and comprises an air pick assembly consisting of an air pick main body and a pick head, and a dustproof intercepting assembly, the dustproof interception assembly comprises an interception unit, a telescopic guide unit and a dust falling unit; the intercepting unit is used for intercepting stone particles splashing upwards; the telescopic guiding unit is used for providing guiding and resetting force for stretching and retracting of the intercepting unit. And the dust falling unit is used for performing spraying and dust falling on dust generated by crushing. By arranging the dustproof intercepting assembly, stone particles splashing upwards can be intercepted through the conical corrugated cover, so that the stone particles are prevented from splashing upwards to the face of an operator and hurting the face of the operator, meanwhile, water mist is sprayed out through a plurality of spray heads to annularly cover a crushing area, dust generated by crushing can be intercepted, and the crushing efficiency is improved. And the dust is prevented from scattering to influence the breathing health of operators.

The utility model discloses an electric draft disassembling and assembling structure which comprises a shell, a cavity is formed in the shell and used for containing a motor assembly, the motor assembly comprises a motor barrel, a stator and a rotor, the motor barrel is arranged in the cavity in a clamped mode, a bearing is arranged at the bottom of the motor barrel and connected with the rotor, and the stator is arranged in the cavity. The stator is arranged on the outer side of the rotor and is clamped with the motor barrel; at least two lifting convex parts are arranged at the bottom of the motor barrel in the radial direction, the lifting convex parts are arranged at the tail of the motor barrel, fixing claws of a puller can be arranged on the lifting convex parts, a middle limiting rod abuts against a motor shaft, the motor barrel and a stator are directly pulled out through the puller, a rotor can be conveniently taken out, and the disassembly and assembly process is more convenient and faster.

The utility model relates to an air pick which comprises a pick barrel, an inner cavity is formed in the middle of the pick barrel, a hammer body matched with the inner cavity in a sliding mode is arranged in the inner cavity, and the inner cavity comprises a movable cavity used for allowing the hammer body to move and an air inlet cavity used for air inlet. A first air hole communicated with the outside and a second air hole located on the adjacent side of the first air hole are formed in the side wall of the movable cavity, and the first air hole and the second air hole are distributed in the axis direction of the pickaxe barrel. The utility model has the characteristics that the exhaust speed can be increased when the hammer body moves, the impact speed and the impact frequency of the hammer body are improved, and the like.

The mining hammer comprises a quick release rod, an elastic frame is sleeved outside the quick release rod, a handle is fixedly connected to the tail of the elastic frame, a rotating ring is rotatably mounted on the head of the elastic frame, a pickaxe and a hammer head are fixedly connected to the periphery of the rotating ring, and the quick release rod penetrates through the rotating ring. The elastic frame comprises an elastic frame body, the head of the elastic frame body is fixedly connected with a clamping ring, and one side of the clamping ring is fixedly connected with an annular shaft. The elastic frame further comprises a reinforcing sleeve, and the reinforcing sleeve is fixedly connected to the tail of the elastic frame body. The elastic frame further comprises hemispherical blocks, and the hemispherical blocks are evenly and fixedly connected to one face of the clamping ring. The rotating ring comprises a ring body, the quick release rod is loosened, the elastic frame loosens the rotating ring, the rotating ring restores rotation, the rotating ring is rotated to switch the pickaxe and the hammer head, the quick release rod is pressed tightly, the elastic frame is tightened through the quick release rod, the rotating ring is clamped and fixed through the elastic frame, and the pickaxe or the hammer head can be switched conveniently according to target ore needs.

The utility model discloses a mining air pick capable of automatically removing slag, and relates to the technical field of air picks. The mining air pick capable of automatically removing slag comprises an air pick shell, the slag removal assembly comprises a connecting cover, the surface of the connecting cover is rotatably connected with a protective cover, the inner wall of the protective cover is fixedly connected with a plurality of blades, the lower end of the connecting cover is provided with a plurality of vent holes, and the lower end of the protective cover is fixedly connected with a connecting plate; a plurality of second cleaning brushes are fixedly connected to the lower end of the connecting plate, a plurality of first cleaning brushes are fixedly connected to the upper end of the protective cover, the blades are driven to rotate by waste gas generated by impact of the piston, the first cleaning brushes and the second cleaning brushes are driven to synchronously remove slag, and the first cleaning brushes annularly distributed at the upper end remove dust particles; and the second cleaning brush at the lower end quickly sweeps rock debris accumulated around the pickaxe drill rod at high frequency through rotating centrifugal force, so that the slag removal efficiency is improved, and the automation degree of the device is improved.

The utility model relates to the technical field of mechanical equipment manufacturing, in particular to efficient waste bolt disassembling equipment which comprises a fixing support, an integral moving component is slidably mounted on the fixing support, a pneumatic pick damping fixing frame is arranged below the integral moving component, and a pneumatic pick is mounted on the pneumatic pick damping fixing frame. A bolt breaking shovel head is installed on the pneumatic pick, an angle adjusting groove is formed in the pneumatic pick damping fixing frame so that the angle of the pneumatic pick can be adjusted to meet different working conditions, and a damping spring is arranged in the pneumatic pick damping fixing frame so that it can be guaranteed that impact vibration of the pneumatic pick cannot affect overall moving parts. The overall moving component comprises a transverse moving assembly and a longitudinal moving assembly, the transverse moving assembly comprises a gear motor, a servo motor, a rack and a gear, the rack and the gear are in an engaged state, and the longitudinal moving assembly comprises a lifting servo motor, a lifting speed reducer, a lead screw and a nut. According to the mechanism, a worker only needs to operate the movement mechanism to disassemble the bolt, so that the labor intensity is greatly reduced.

The utility model provides an electric pick with a novel head holding, locking and adjusting structure. The problem that the angle of an existing chisel head is inconvenient to adjust is solved. According to the utility model, the chisel head is inserted into the insertion hole, the steel ball is clamped on the chisel head, the locking piece buckled on the periphery of the through hole is used for pressing the steel ball on the chisel head all the time to complete locking of the chisel head, and during adjustment, the adjusting sleeve is driven to move upwards, and the second spring is used for driving the locking piece to move upwards, so that the locking piece is separated from the through hole; the steel ball moves outwards along the channel and is separated from the chisel head, the chisel head is directly taken down, adjusted to a required angle and inserted again, locking can be completed again by loosening the adjusting sleeve, and adjustment is convenient.

The utility model discloses an air pick convenient to use, and belongs to the field of air picks. The air pick comprises an air pick body, a handle is fixedly connected to the upper portion of the air pick body, an air inlet is formed in the right side of the air pick body, a handle assembly is arranged on the left side of the air pick body, and the handle assembly comprises two supporting pieces; the two supporting pieces are fixedly connected with the left side of the pneumatic pick body, the front faces of the two supporting pieces penetrate through and are rotationally connected with a rotating column, the outer surface of the rotating column is fixedly connected with a handle, a threaded rod penetrates through the left side of the handle in a threaded mode, a threaded hole is formed in the left side of the pneumatic pick body, and the threaded hole is matched with the threaded rod. According to the pneumatic pick, the handle assembly is arranged so that a user can better control the pneumatic pick body, the handle assembly can be folded, the handle can droop after being folded, the effect of not occupying extra space is achieved, and meanwhile the user can conveniently use the pneumatic pick.

The utility model discloses an electric pick capable of reducing the temperature of an internal piston mechanism, which comprises an electric pick body, a piston cylinder fixedly mounted at the lower part of the electric pick body, a piston guide cavity formed in the piston cylinder, an impact piston slidably mounted in the piston guide cavity, and an impact hammer fixedly mounted at one end of the impact piston in the piston guide cavity, a spiral hole is formed in the periphery in the piston guide cavity, a cooling mechanism is fixedly installed in the spiral hole, and the cooling mechanism can absorb and conduct the temperature in the piston guide cavity. Through the design of the cooling mechanism, heat generated by friction between the impact piston and the piston guide cavity can be continuously cooled, it is ensured that the electric pick body is efficiently cooled in long-time use, and equipment overheating can be prevented through effective heat management, so that the piston and the piston guide cavity are protected, abrasion and material fatigue are reduced, and the service life of the electric pick is prolonged. And the overall durability of the equipment is improved.

The utility model discloses a convenient to assemble dismount's electric grab, including electric grab main part, the front end of electric grab main part is provided with the assembling mechanism, the assembling mechanism includes the assembling seat of fixed connection in the front end of electric grab main part, the front end of assembling seat is opened with the sliding slot, the inboard inner wall of assembling seat is fixedly connected with the support frame, the inboard of support frame is fixedly connected with the limiting rod. The utility model discloses a convenient to assemble dismount's electric grab, through pulling the push block, make the spacer drive control lever movement to with make control ring along the spring extrusion limiting rod, simultaneously make control lever drive telescopic head movement, reach convenient for telescopic head to separate the purpose of handle, and then convenient for dismounting handle, so convenient for construction personnel to carry electric grab main part, and loosen the push block to spring will control lever upward push, and then convenient for telescopic head to be inserted into handle, thereby convenient for installing handle.

The invention relates to the field of electric picks, in particular to an electric pick with an angle positioning function, which comprises an electric pick body, a handle is mounted on the left side of the electric pick body, an electric pick shovel is mounted on the right side of the electric pick body in a penetrating manner, a dust falling mechanism is mounted in the electric pick body, and the dust falling mechanism comprises a transverse pipe. The inner wall of the transverse pipe is connected with a partition plate, the right side of the partition plate is connected with a telescopic pipe, the right side of the telescopic pipe is connected with a connecting plate, the top of the telescopic pipe communicates with a one-way liquid outlet valve, the top of the one-way liquid outlet valve communicates with a first hose, and the right side of the first hose communicates with a first circular ring pipe; and the right side of the first circular ring pipe communicates with a spray head. Liquid in an inner cavity of the telescopic pipe can be extruded and sprayed out through the spray head, external concrete is subjected to reduction treatment, the situation that external dust drifts in air to pollute the environment is avoided, the working environment is protected, and operators are protected.

The utility model belongs to the technical field of air picks, and particularly relates to an air pick with a replaceable pick rod, which comprises a main body, a handrail arranged on one side of the main body, a driving part arranged below the main body, a mounting part arranged below the driving part, a mounting groove arranged on one side inside the mounting part, and a threaded groove arranged inside the lower part of the mounting part. A limiting sleeve is arranged on one side of the exterior of the mounting part, and a fixing pin is arranged in the limiting sleeve; a fixing mechanism is arranged below the mounting part, a pickaxe drill rod body is arranged in the fixing mechanism, a limiting mechanism is arranged in the mounting groove, and a connecting mechanism is arranged on one side of the limiting mechanism; the limiting mechanism comprises a connecting rod, a clamping block, a limiting disc and a reset spring. According to the pneumatic pick, through the cooperation of the limiting mechanism installed in the installation part and the connecting mechanism installed at one end of the pick rod body, the pick rod is easier and more convenient to install and detach, and therefore the practicability of the pneumatic pick is effectively improved.

The utility model provides a multifunctional pickaxe capable of being rapidly adjusted, a drill bit and a drill rod are respectively provided with a connecting end, the multifunctional pickaxe comprises a connector used for being connected with the connecting end of the drill rod, a clamping hook used for fishing the drill bit and an extension connecting rod, and the connector and the clamping hook are fixedly connected with the two ends of the extension connecting rod respectively. The connector is provided with a plurality of connecting holes used for being connected with a drill rod through screws.

The utility model relates to an electric pick with a protection function, which is characterized by comprising an electric pick, a pick head, a mounting plate, sleeve rods, telescopic rods, flexible cloth, fixing screws, reset springs and a dust falling component, the pick head is mounted at the lower end of the electric pick, the mounting plate is connected to the lower end of the electric pick, the sleeve rods are connected to the four ends of the bottom surface of the mounting plate, the telescopic rods are slidably connected into the sleeve rods, and the flexible cloth is arranged on the telescopic rods. The fixing screws are in threaded connection with the sleeve rods and the telescopic rods, flexible cloth is connected between the adjacent sleeve rods through the fixing screws, flexible cloth is connected between the adjacent telescopic rods through the fixing screws, reset springs are arranged in the sleeve rods, the bottoms of the reset springs are connected with the telescopic rods, and a dust falling assembly for absorbing dust is arranged on the bottom side of the mounting plate. The pickaxe has the advantages that through cooperation of the flexible cloth, the sleeve rod and the telescopic rod, the flexible cloth wraps the pickaxe, the function of blocking splashing chippings is achieved, and finally the purpose of protecting the safety of operators and the surrounding environment is achieved.

The utility model discloses an adjustable electric pick which comprises a shell, a plate body is fixed at one end of the shell, a pick head assembly is installed at the bottom of the shell, a driving piece used for driving the pick head assembly is installed at the top of the shell, the driving piece comprises a driving motor and an eccentric disc, the driving motor is fixed on the outer wall of one side of the plate body, and the eccentric disc is fixed on the outer wall of the other side of the plate body. The eccentric disc is connected with the output end of the driving motor through a coupler, the inner wall of a through hole formed in the surface of the eccentric disc is in threaded connection with a threaded column, the inner wall of the through hole is movably connected with a sliding block, the sliding block is in threaded connection with the threaded column, a limiting plate is welded between the inner walls of the two sides of the shell, and the surface of the limiting plate is movably connected with a reciprocating rod; a swing arm is movably connected between one end of the reciprocating rod and the sliding block. The swing arm is arranged to convert the circular motion of the eccentric disc into the reciprocating motion of the rolling ball along the limiting plate, and the rolling ball impacts the hammering rod when doing progress motion, so that the hammering rod impacts and crushes an object.

A pick (5) for an ice axe (1) which has a shaft (2) and at a head end (3) of the shaft (2) a pick holder (6) for attaching the pick (5) to the shaft (2), - wherein the pick (5) has a holding area (7) for attaching the pick (5) to the shaft (2) and a tip area (11) which is turned away from the holding area (7) in a pick longitudinal direction (X), - wherein the pick (5) has a pick underside (12) which, when the pick (5) is attached to the shaft (2), faces the shaft (2), and a pick upperside (13) which faces away from the pick underside (12) in a pick height direction (Z), - wherein the hoe (5) has a base (14) having the underside of the hoe (12) and a blade (15), - wherein the blade (15) extends from a blade start (16) located in the tip region (11) over at least 30% of the hoe (5) in the hoe longitudinal direction (X) to a blade end (17) located away from the tip region (11), which has a blade edge (18) running along the top surface (13) of the hoe and which has a blade thickness (19) measured in a hoe transverse direction (Y) and a blade height (20) measured in the hoe height direction (Z), which extends from the blade edge (18) to a transition edge (21) at which the blade (15) transitions into the base (14), - wherein the base (14) has a base thickness (22) measured in the transverse direction (Y) of the hoe and a hoe height (23) measured in the vertical direction (Z), extending from the top of the hoe (13) to the bottom of the hoe (12), - where the blade thickness (19) outside the transition edge (21) is smaller than the base thickness (22), - wherein the blade height (20) extends at least at the blade beginning (16) over at least 50% of the hoe height (23), - wherein the blade height (20) decreases continuously along the hoe longitudinal direction (X) from the blade beginning (16) to the blade end (17), - wherein the hoe (15) has a hoe point (25) in the tip area (11) which tapers towards the front, - wherein the hoe point (25) transitions directly into the blade (15) at the rear.

The invention provides a pickaxe drill rod, a pickaxe tool and application, and belongs to the technical field of engineering machinery tools. The pickaxe drill rod is provided with a first end and a second end which deviate from each other in the extension direction of the pickaxe drill rod, the first end of the pickaxe drill rod is provided with a gradually-shrunk structure, the pickaxe drill rod is made of alloy steel, and the alloy steel comprises the following chemical components in percentage by mass: 0.30-1.20% of carbon, 0.30-1.20% of nickel, 0.30-1.20% of nickel, 0.30- 0.10% to 1.20% of silicon; 0.20% to 0.90% of manganese; 3.00% to 9.00% of chromium; 1.20% to 2.00% of molybdenum; 0.20-0.50% of vanadium, less than or equal to 0.030% of phosphorus, less than or equal to 0.030% of sulfur, and the balance of iron and inevitable impurities. The pickaxe drill rod provided by the invention is based on reasonable proportioning of the chemical components, and has relatively high wear resistance and relatively excellent impact fatigue resistance when being subsequently applied to cold forging hardening treatment of a high-manganese steel casting.

This utility model provides an electric pick with a double-link structure, including a cylinder liner, a chuck body, a gearbox, and a motor. A main cylinder is housed within the cylinder liner, and a pick drill bit is inserted into the chuck body and fixed by a chuck sleeve assembly. An impact rod and a hammer are sequentially arranged within the main cylinder, with one end of the pick drill bit extending into the impact rod. A double-link structure is also provided between the main cylinder and the gearbox, and this double-link structure is connected to a secondary cylinder within the gearbox. The output shaft of the motor meshes with the double-link structure, driving the double-link structure to perform eccentric rotation, causing the double-link structure to alternately compress air into the main cylinder and the secondary cylinder. This electric pick, through the design of the double-link structure, enables the double-link to perform eccentric rotational motion, allowing the main link to undertake the primary crushing work, improving the crushing efficiency of the electric pick, while the secondary link plays a role in mitigating machine vibration and assisting in crushing, reducing vibration during the operation of the electric pick.

The utility model relates to the technical field of filters, in particular to an air inlet filter for an air pick, which comprises a mounting sleeve, a filtering mechanism is arranged in the mounting sleeve, and a connecting mechanism is arranged on the outer wall of the mounting sleeve and close to the filtering mechanism. The filter mechanism comprises connecting rods which are slidably connected to the top, the bottom and the two sides of the inner wall of the mounting sleeve, and the filter mechanism is arranged in the mounting sleeve, so that the filter screen can be taken out from the mounting sleeve by utilizing the connecting rods and limiting blocks in the filter mechanism through a positioning structure; therefore, in the use process of the mounting sleeve, the filter screen is taken out more conveniently and quickly, the device is more convenient to use, and the problems that a filter screen is arranged at an air inlet of an existing air pick to prevent impurities in compressed air from entering the air pick, and the filter screen is fixedly mounted in the air inlet and is inconvenient to disassemble and clean are solved.

The utility model provides a double-swing-rod mechanism of an electric pick, which comprises a connecting seat arranged in an electric pick shell and a double-swing-rod driving assembly arranged on the connecting seat, a hammer rod sleeve is rotationally arranged in one end of the connecting seat, a connecting rod is movably arranged in the hammer rod sleeve, and a hammer rod is arranged in the connecting rod. One end of the connecting rod extends out of the hammer rod sleeve and is rotationally provided with a piston; the double-swing-rod driving assembly comprises a mounting shaft, a driving gear, a circular mounting base, a first spherical block, a second spherical block, a first swing rod bearing, a guide sleeve, a cylindrical guide block and a second swing rod bearing. According to the double-swing-rod mechanism of the electric pick, the guide sleeve, the cylindrical guide block, the second swing rod, the second rotating shaft, the second swing rod bearing and the second spherical block are matched with one another to achieve the guiding purpose, the first swing rod bearing, the first swing rod and the piston cylinder can move stably, and therefore the working process of the electric pick is stable, and the service life of the electric pick is prolonged. And the crushing performance of the electric pick can be ensured.