91 results about "Hammer drill" patented technology

The utility model discloses a damping device with a better damping effect in a hammer drill shell. The damping device comprises a front shell and a rear shell, the front shell and the rear shell can be connected in a relative axial sliding mode, a movable gap is formed between the front shell and the rear shell, a damping device is arranged at the movable gap between the front shell and the rear shell and comprises a front positioning plate, a damping gasket and a rear positioning plate, and the front positioning plate and the rear positioning plate are installed on the two sides of the damping gasket respectively. And the two sides of the damping washer are respectively positioned and propped against the front shell and the rear shell through the front positioning plate and the rear positioning plate. According to the utility model, the damping device is arranged between the front shell and the rear shell, and the damping device is arranged at the movable gap between the front shell and the rear shell to buffer the vibration between the front shell and the rear shell, so that the vibration acting on the grip during the use and operation of the drill rod can be effectively reduced, the use comfort of an operator is improved, and the adverse effect caused by operation and use is improved; and better positioning, supporting and buffering effects are achieved.

A suction device for a releasable connection to a hand-held power tool, in particular to a hammer drill, includes a housing with a drive unit arranged in the housing for generating a suction flow, and at least one locking unit for a mechanical coupling with the hand-held power tool. The coupling includes at least one locking element for direct locking with the hand-held power tool and at least one actuating element used to release the lock of the at least one locking element. The actuating element and / or the locking element are arranged at least partially adjacent the drive unit.

A hammer drill includes a motor, a cylindrical tool holder, an intermediate shaft, a rotation conversion portion, a mode switching member, a restricting member, and an operation member. A first switch state of the restricting member by the operation member causes a first operation mode in which rotation of the tool holder and a striking motion of a striking portion allowed to be performed simultaneously in conjunction with retreat of the tool holder. A second switch state of the restricting member by the operation member causes a second operation mode in which the retreat of the tool holder from the advance position is restricted and the tool holder is allowed to be rotated only. The restricting member is provided with a plurality of restricting portions that contact the mode switching member to restrict the retreat of the mode switching member.

1. Name of the product in this design: Chamfering, punching, and reaming hammer drill. 2. Application of this design: for punching positioning holes, chamfering and deburring, and enlarging holes for wood veneer. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D view 1.

To improve convenience of a working machine.SOLUTION: A hammer drill includes a handle part housing 12 for supporting a motor, a battery mounting part housing 16, and an elastic body 21 interposed between the handle part housing 12 and the battery mounting part housing 16. The handle housing 12 has a handle upper sidewall part 12a located above the elastic body 21 and a handle lower sidewall part 12b located below the elastic body 21. The battery mounting part housing 16 has a battery mounting part lower sidewall part 12a positioned on the lower side of the elastic body 21 and interposing the elastic body 21 with the handle part upper sidewall part 16a, and a battery mounting part upper sidewall part 12b positioned on the upper side of the elastic body 21 and interposing the elastic body 21 with the handle part lower sidewall part 16b.SELECTED DRAWING: Figure 2

Rotary drive for driving a tool fitting of a hand-held power tool, in particular of a combination hammer or hammer drill, wherein the rotary drive is configured, with respect to a working axis of the tool fitting, to convert a thrust input movement into a rotary output movement, wherein the rotary drive is in the form of a slotted-link mechanism with a freewheel-mounted track body and a ball cage arranged coaxially with the track body, wherein, when the ball cage is subjected to the thrust input movement, at least one ball of the ball cage slides along in an endless track contour formed on an outer surface of the track body and thus brings about a rotation of the freewheel-mounted track body.

The utility model discloses a broken hammer drill rod grabbing device belongs to engineering machinery technical field. It includes I -section frame, triangular crossbeam, fixed finger, movable finger, oil cylinder and connecting plate. I -section frame is used to connect industrial robot or forklift, and triangular crossbeam enhances structural strength, and fixed finger is hinged with movable finger through hinge shaft, and oil cylinder drives movable finger opening and closing through connecting plate. The device is equipped with arc clamping surface and antiskid line and is guaranteed to clamp stably, and triangular crossbeam is equipped with reinforcing rib, and the hinge part is equipped with bearing and wear -resisting gasket and improves durability. Optional sensor identifies that drill rod is in place, and oil cylinder control valve linkage external equipment controller realizes automatic grabbing and relaxation. The device structure is stable, and the adaptability is strong, can promote operation efficiency and security.

The present application relates to a tool holder and an electric hammer, which comprises a first spring for providing the pressure of locking the tool head and a second spring for providing the pressure of locking the tool holder on the electric hammer, the first and second springs at least partially overlap along the axial direction of the holder base, which makes the overall length of the tool holder shortened, thus facilitating the miniaturization of the whole machine when the tool holder is installed on the electric hammer; meanwhile, the second spring keeps the original pressure state unchanged when the first locking mechanism is driven to unlock the tool head, avoiding the influence of the operator's operation comfort when pulling the first sleeve to overcome the force of the first and second springs during the release of the tool head.

The utility model discloses an excavator breaking hammer drill rod protection device which comprises a drill rod and is characterized in that a protection cover is arranged on the lower portion of the drill rod, the protection cover is in a square conical bucket shape, an opening of the protection cover faces downwards, the protection cover comprises a square frame at the bottom end, a cover plate in the middle and a tightening pipe at the top end, the tightening pipe penetrates through the drill rod in a sleeved mode and is tightened through a threaded sleeve, and the cover plate is a transparent rubber plate. An annular plate is arranged at the bottom of the tightening pipe, and a spring is arranged on the upper portion of the annular plate, surrounds the lower portion of the tightening pipe and is elastically matched with the threaded sleeve. The square frame is a square frame, the four corners of the square frame are chamfers, cover plates of the four main faces of the protective cover are transparent rubber plates, and the chamfered faces are wire nets. The square frame is a metal frame. The protective device for the drill rod of the breaking hammer of the excavator can play a role of a protective cover, prevents broken stones or disintegrating slag from splashing out, meanwhile greatly reduces dust fleeing, prevents nearby pedestrians from being injured or influenced by crashing, and is convenient to use and low in cost, and the wire net can ventilate and dissipate heat.

1. The name of the design product: dust cover for electric hammer drill. 2. The use of the design product: for dustproof of products. 3. The design points of the design product: in the perspective view. 4. The picture or photo that best shows the design points: perspective view.

1. Name of the designed product: electric hammer. 2. Use of the designed product: for hammer drill, hole making. 3. Design points of the designed product: in shape. 4. Picture or photo best indicating the design points: front view.

1. Name of the designed product: electric hammer drill bit (straight line). 2. Use of the designed product: drill bit for making holes in concrete or brick. 3. Design points of the designed product: in shape. 4. Picture or photo that best shows the design points: design 1 perspective view. 5. Design 1 is designated as the basic design.

The utility model relates to the technical field of deslagging devices, in particular to a rotary blade deslagging device for a drill rod of a down-the-hole hammer drill, which improves the deslagging efficiency of rock slag, improves the dust absorption effect and reduces dust pollution. Comprising a cylinder body and a down-the-hole hammer, and the down-the-hole hammer is arranged below the cylinder body; the rotating shaft is rotatably installed in the barrel, the bottom end of the rotating shaft is connected with the top end of the down-the-hole hammer, the spiral blade is installed on the outer side wall of the rotating shaft, the driving motor is installed at the top end of the barrel, and the output end of the driving motor is concentrically connected with the rotating shaft; the collecting device is used for collecting rock disintegrating slag in the barrel and sucking air into the barrel, an inlet is formed in the bottom end of the barrel, and the crushing device is arranged at the air inlet.

The utility model relates to the technical field of five-pit electric hammer drill bits, and discloses a five-pit electric hammer drill bit which comprises a drill rod, the top end of the drill rod is fixedly connected with a fixing rod, a first flow guide groove is formed in the outer wall of the drill rod, and a second flow guide groove is formed in the position, close to the edge, of the outer wall of the drill rod. A liquid drainage hole is formed in the inner wall of the first flow guide groove, a liquid inlet hole is formed in the inner wall of the second flow guide groove, cooling grooves are formed in the bottoms of the inner walls of the liquid drainage hole and the liquid inlet hole, a plurality of annular grooves are formed in the inner walls of the cooling grooves, and a plurality of positioning rings are fixedly connected to the upper middle side of the outer wall of the drill rod. According to the cooling device, when the drill rod rotates, the liquid inlet sleeve is kept relatively static between the positioning rings, meanwhile, cooling liquid is drained into the second flow guide groove through the liquid groove and is discharged through the liquid groove in the other side, the purpose of rapidly cooling the drill bit in a circulating mode is achieved, the working efficiency is improved, and the use cost is reduced.

The utility model relates to the technical field of bale breaker hydraulic hammer drill rods, in particular to a bale breaker hydraulic hammer drill rod installing and storing device which is provided with a base, a top plate, supporting legs and inserting holes, when an old drill rod needs to be replaced, a hammer head of a bale breaker hydraulic hammer is moved, the angle of the hammer head is adjusted, the old drill rod is inserted into the inserting holes, and then the old drill rod is replaced. And the bottom end of the old drill rod abuts against the upper surface of the base. And then the shaft pin for connecting the old drill rod with the hammer head is detached, so that the old drill rod can be separated from the hammer head. And at the moment, the old drill rod leans against the side wall of the inserting hole, so that the old drill rod is stored. And then, the hammerhead of the bale breaker hydraulic hammer continues to be moved to the position of the new drill rod, the angle of the hammerhead is adjusted, the new drill rod is inserted into the hammerhead, then the shaft pin is installed on the hammerhead, and installation of the new drill rod can be achieved. The whole installation and replacement process does not need manual carrying of a new drill rod or an old drill rod, and time and labor are saved.

The invention discloses a lightweight high-strength electric hammer drill and a preparation process thereof, and belongs to the technical field of electric hammer drills. The light-weight high-strength electric hammer drill comprises an electric hammer drilling machine and an electric hammer drill bit body, a cutting tool bit is installed at the front end of the electric hammer drill bit body, a carbon fiber composite rod is arranged in a hollow drill rod, and a penetrating rod is installed between the carbon fiber composite rod and the electric hammer drill bit body. The electric hammer drill bit solves the problems that in the actual using process of an existing drill bit body, the weight of the drill bit affects operation, and the working life of the drill bit cannot be guaranteed in long-term work, by introducing the ceramic tool bit, the wear-resisting life of the electric hammer drill bit body is increased by the order of magnitude, and when the ceramic tool bit drills reinforced concrete, the service life of the electric hammer drill bit body is prolonged. The electric hammer drill bit is high in abrasion resistance, the three-dimensional woven carbon fiber structure is adopted, the pulse impact load of an electric hammer can be effectively resisted, and the electric hammer drill bit body is not prone to layering and cracking under high-frequency impact and excellent in toughness performance.

A construction method of an inverted trapezoidal anchor cable anchoring structure belongs to the field of geotechnical engineering anchoring, and comprises the following steps: conventionally drilling to a hard rock stratum, and switching to other drilling tools for continuous drilling; the casing pipe is synchronously lowered for stepped reaming, an inverted trapezoidal hole is formed, and forming of the inverted trapezoidal anchor cable anchoring structure is completed; and drill rod recovery triggers hole wall reinforcement. Three continuous time sequence actions of drilling, reaming and recycling are adopted to form a construction closed loop, the geometrical shape of an anchoring body is reconstructed through inverted trapezoidal multi-stage reaming, hole opening stress concentration is eliminated, the hole forming precision of a complex stratum is guaranteed through synchronous wall protection of a sleeve, and systematic improvement of anchoring force is achieved. The drill bit can be switched into a down-the-hole hammer drill bit for continuous drilling, casing stepped reaming is completed at the same time, and the problem that existing hard rock drilling is interrupted is solved. Hole wall finishing is automatically activated through lifting movement of the drill rod, manual intervention is avoided, the physical effect is triggered through the gravity direction change of the drill rod, and the slurry penetration depth reaches 15 mm.

The utility model discloses an anti-splashing protection device of a breaking hammer front shell, which relates to the related field of engineering machinery and comprises a shell component, an anti-splashing component, a control component and a cooling component, the outer wall of the shell component is in sliding connection with the anti-splashing component, and the inner wall of the shell component is fixedly connected with the control component. The lower end of the anti-splashing assembly is fixedly connected with the cooling assembly, the shell assembly further comprises a shell, and the outer wall of the shell is slidably connected with the anti-splashing assembly; the thread grooves are formed in the left end and the right end of the shell; the pin shaft is fixedly connected to the upper end of the shell; the short screws are in threaded connection with the rear sides of the left end and the right end of the shell through the threaded grooves; and by arranging the cooling assembly capable of cooling the drill rod of the breaking hammer, the device can spray water to cool the drill rod during breaking work, so that the situation that the material hardness is reduced, microcosmic cracks are expanded, and abrasion or breakage is accelerated due to the fact that the temperature is too high is avoided.

The present application provides a kind of impact tool.Hammer drill (1) includes tool holder (10), two balls (35,35) being arranged in the receiving hole (45,45) of tool holder, the guide washer (33) of the front side of ball to the receiving hole by helical spring (34) force, press ring (32) is arranged adjacent to the front side of guide washer and the operation sleeve (31) of the front and back movement of press ring between the locking position and the locking release position of two balls.In the front surface of guide washer, protruding portion (42) is provided to the side of press ring, by protruding portion (42), in the locking position of press ring guide washer becomes the inclined attitude from the axis (A) of tool holder, so that one ball (35) can be more rearward than the other ball (35) moves.Accordingly, by making two balls reliably retreat, tip tool can be smoothly inserted into tool holder.

The invention discloses an electric hammer drill with a replaceable tool bit, and belongs to the technical field of drilling equipment, the electric hammer drill comprises a first cutting body, one end of the first cutting body is connected with a second tool bit, the other end of the first cutting body is detachably connected with a second cutting body, the second cutting body is connected with a first tool handle, and the first tool handle is used for being assembled with an electric drill clamping component. The electric hammer drill has the advantages that the service life is long, the cost is low, the electric hammer drill can be flexibly adjusted and assembled according to different drilling conditions, the drilling accuracy is high, and damage to the periphery of a drilled hole is small.

A central vent hole and a piston outer wall are formed in a piston, the lower end portion of a gas transmission needle is connected into the central vent hole in a matched and sliding mode, a gas transmission hole is formed in the lower end portion of the gas transmission needle, and a return stroke air inlet hole is formed in the upper portion of the piston. The upper end of the return air inlet is communicated with the central vent hole, the lower end of the return air inlet penetrates through the outer wall of the piston, a stroke air inlet is formed in the upper portion of the piston, the axis of the stroke air inlet and the axis of the central vent hole form an acute angle, and the lower end of the stroke air inlet is communicated with the central vent hole. The upper end of the stroke air inlet penetrates through the outer wall of the piston; a sealing sleeve is arranged in the sleeve in a matched mode, and the inserting end of the piston can be connected into the upper portion of the sealing sleeve in a matched and sliding mode. The gas circuit structure of the down-the-hole hammer drilling tool is favorable for improving the durability of the down-the-hole hammer drilling tool and is favorable for enabling the piston to move back and forth flexibly.

The invention provides a fishing socket, a fishing method and application, the fishing socket comprises an upper connector, a socket body and a fishing tile which are sequentially connected, the upper end of the upper connector is provided with a connecting buckle to be connected with a drilling tool, and the lower end of the upper connector is in threaded connection with the upper end of the socket body; the cylinder body is provided with a hollow first axial cavity; the fishing tile is installed on the lower section of the first axial cavity. The fishing method is realized by adopting the fishing barrel. The fishing socket is applied to fishing of the air hammer drill bit or short fish head falling objects. According to the fishing barrel, the air hammer drill bit which cannot be fished by a conventional fishing tool can be fished smoothly, rotation is not needed during operation, and operation is simpler and more convenient.

A down-hole hammer drill tool, the drill tool comprising a percussive piston, a drive sub, a drill bit shank comprising a rearward external annular shoulder and a drill bit head, wherein the drill bit shank and the drill bit head are threadably connected.

The invention relates to a machine tool (1), in particular a hammer drill or chisel hammer, having a housing (5) which has a rear grip region (7), an assembly (9) which comprises a percussion mechanism device (11) and a drive device (13), the assembly being provided at least partly within the housing and mounted movably with respect to the housing, the percussion mechanism device having a percussion axis (19) which defines a longitudinal direction (Z), and the assembly having a center of mass (15), and at least one rear longitudinal-(Z)-direction decoupling device (35) which is provided between the assembly and the housing and compresses when the assembly is moved towards the grip region in the longitudinal direction. The percussion axis and the center of mass define a sagittal plane, the percussion axis and the center of mass lying on the sagittal plane, the percussion axis and the sagittal plane define a frontal plane, the frontal plane extending orthogonally to the sagittal plane and the percussion axis lying on the frontal plane, and the frontal plane delimits an upper half-space which does not comprise the center of mass. The machine tool is characterized in that the longitudinal-(Z)-direction decoupling device is provided in the upper half-space at least in some regions.

In the brushless motor disposed in a hammer drill, while a stator core of a stator is formed by joining a plurality of divided cores divided in a circumferential direction, varnishes are applied over a coil and joining portions between the divided cores.

The utility model relates to the technical field of electric hammer drill bits, and discloses a round handle electric hammer drill bit which comprises a hollow long cylinder, a groove is formed in the top of the hollow long cylinder, a plurality of sawteeth are fixedly connected to the left side of the inner wall of the groove at equal intervals, and an outer tooth groove plate is slidably connected to the interior of the groove. A square short plate is rotatably connected to the front side of the outer wall of the outer tooth groove plate, a fixing circular ring is fixedly connected to the front side of the outer wall of the square short plate, a plurality of springs are fixedly connected to the front side of the outer wall of the fixing circular ring at equal intervals, and a fixing ring is fixedly connected to the other ends of the springs. According to the electric drill, the outer tooth groove plate slides to move to the front side, force is transmitted to the outer tooth groove plate through the spring to absorb and release the force, and therefore the situation that after the arm of a worker is subjected to vibration impact force generated when the electric drill drills holes for a long time, the hand of the worker is fatigued, and the hand holding the electric drill loses control over a drill bit is avoided; and serious safety accidents are caused.

An electric working machine with the same or more prevention or suppression of the transmission of the vibration than that of a related art because of having the less components and the less man-hours for assemblies than those of the related art is achieved. A hammer drill includes a motor serving as a driving source and is equipped with a drill bit driven by a driving force that is output from the motor. The hammer drill includes a main-body housing and a handle housing forming at least a part of an outer shell, and the main-body housing and the handle housing are connected to each other through an elastic body to be relatively movable. The elastic body is formed on the main-body housing and the handle housing by a double-layer molding, and is a part of a continuous resin cover covering surfaces of the main-body housing and the handle housing.

The invention provides an impact tool. A hammer drill (1) is provided with a motor (2), a drive mechanism, a main body case (11), a handle case (15), a front guide section (61), and a rear guide section (62). The drive mechanism is capable of executing at least an impact action for linearly driving the tip tool along a drive axis (A1) parallel to a rotation axis (A2) of the motor shaft (25). The handle housing (15) includes a gripping portion (17) and is formed in a ring shape. The handle housing (15) is connected to the main body housing (11) via an elastic member (51). The front guide section (61) and the rear guide section (62) guide the relative sliding of the main body case (11) and the handle case (15) in the front-rear direction. The rear-side guide section (62) is disposed further away from the front-side guide section (61) and further toward the rear than the front-side guide section (61). Therefore, the sliding of the main body shell and the handle shell can be stably guided in the front-back direction with high precision.

The invention relates to a machine tool, in particular a hammer drill or chisel hammer, having a housing which has a grip region; an assembly which comprises a percussion mechanism device and a drive device, the percussion mechanism device having a percussion axis which defines a longitudinal direction, and the assembly being provided at least partly within the housing and mounted so as to be movable with respect to the housing at least in the longitudinal direction and in a vertical direction running perpendicularly with respect to the longitudinal direction; and at least one rear longitudinal-(Z)-direction decoupling spring which is provided between the assembly and the housing and compresses when the assembly is moved towards the grip region in the longitudinal direction. At least one plug-in connection having a plug-in axis extending in the longitudinal direction is provided between the assembly and the housing, the plug-in connection being unplugged when the assembly is moved towards the grip region in the longitudinal direction.

The invention relates to a machine tool (1), in particular a hammer drill or chisel hammer, comprising a housing (5) having a rear grip region (7), comprising an assembly (9) comprising a striking mechanism device (11) and a drive device (13), wherein the assembly (9) is arranged at least partially within the housing (5) and is arranged movably relative to the housing (5), wherein the striking mechanism device (11) has a striking axis (19) defining a longitudinal direction (Z), and comprising a linear guide (61) with which the assembly (9) is mounted on the housing (5) such that it can move in the longitudinal direction (Z), wherein the housing (5) has a side grip securing region (62) which can be encircled by the strap of a side grip, wherein the striking axis (19) runs though the side grip securing region (62), characterised in that the linear guide (61) is arranged spaced apart from the side grip securing region (62) in the longitudinal direction (Z).