138 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.

The invention provides a comprehensive construction method of a large-diameter tubular pile for supporting a foundation pit in a deep and thick rock-filled sand layer, which adopts a double-machine cooperation segmented construction mode and comprises the following construction steps: deploying a while-drilling tubular pile machine A equipped with a down-the-hole hammer and a steel casing at a target pile position; steel casing synchronous hole guiding; transferring the pile machine A; backfilling a soil body in the steel casing in which the hole is led; the steel casing is pulled out through hoisting equipment; in a hole section formed by backfill soil, the large-diameter tubular pile is driven by a while-drilling and tubular pile machine B to follow up and sink along with drilling; forming a pile; the pile machine A is used for hole guiding and steel casing supporting, the pile machine B is used for pipe pile forming, and the pile machine A and the pile machine B work independently in parallel. According to the construction method, the down-the-hole hammer leads the hole to be matched with the steel casing to follow up to the bottom of the rock-fill layer to effectively control the drilling quality and efficiency of the rock-fill layer, the large-diameter while-drilling pipe pile effectively controls hole collapse of the sand layer, and the construction method effectively solves the problems that pile forming is difficult, the construction efficiency is low, and the pile forming quality is poor in the construction process of foundation pit supporting piles in deep and thick rock-fill and sand layer areas.

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.

The utility model belongs to the technical field of drilling auxiliary devices, and particularly relates to a drilling auxiliary device for deep hole curtain grouting, which comprises a drilling tool positioning disc, a groove is arranged in the center of the top of the drilling tool positioning disc, and a universal positioning level bubble is embedded in the groove. The center of the bottom of the drilling tool positioning disc is fixedly provided with a positioning rod inserted into a hole formed in advance through a hammer drill, and the adjusting assembly is arranged at the bottom of the drilling tool positioning disc and used for being matched with the universal positioning level bubble to adjust the hole forming angle. When the auxiliary drilling tool is used, the drilling angle can be accurately approved during drilling assistance, so that the construction quality is ensured; the device is convenient to operate, easy to use and convenient to carry; the loss caused by follow-up hole deviation correction or re-trepanning due to the fact that the trepanning angle is wrong can be avoided; and one-time investment meets the construction requirement for designing the opening angle, repeated use can be achieved, and the investment cost of high-standard construction quality is obviously reduced.

A cordless, hand-held power tool, such as a hammer drill / driver, an impact driver, an impact wrench, etc., that includes a brushless direct current (“BLDC”) motor. Each of the hand-held power tool includes a removable and rechargeable battery pack, electronics, and a BLDC motor that have been designed and balanced to produce high-performance-capable (e.g., high-power, high-current, high-torque) hand-held power tool. The hand-held power tool is capable of delivering high instantaneous (i.e., short duration) current to the BLDC motor for short-duration high power operation and high continuous (i.e., long duration) current to the BLDC motor for long duration high power operation. Additionally, the short and long duration power is capable of being provided in a smaller (in size) and lighter (in weight) power tool.

The present application provides a kind of impact tool.The hammer drill (1) has motor (2), drive mechanism, main body shell (11), handle shell (15), front side guide (61) and rear side guide (62).Drive mechanism can at least execute the impact action of linearly driving top end tool along the drive axis (A1) parallel with the rotation axis (A2) of motor shaft (25).Handle shell (15) includes grip (17), and is formed into annular shape.Handle shell (15) is connected with main body shell (11) via elastic component (51).Front side guide (61) and rear side guide (62) guide the relative sliding of main body shell (11) and handle shell (15) in front and back direction.Rear side guide (62) is away from front side guide (61), and is configured at the position more rear than front side guide (61).Accordingly, the sliding of main body shell and handle shell can be guided in front and back direction with high precision and stability.

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

The utility model discloses a handheld concrete vibrating device, and relates to the technical field of concrete treatment. Comprising an electric hammer, a connecting rod and a vibrating plate, one end of the connecting rod is inserted into the output end of the electric hammer, a sleeve is arranged on one side of the vibrating plate, and the other end of the connecting rod is correspondingly inserted into the sleeve to be connected with the vibrating plate; the sleeve is further provided with an insertion limiting groove, and the other end of the connecting rod is correspondingly provided with an insertion limiting piece. According to the handheld concrete vibrating device, the vibrating plate is tightly attached to the formwork, so that vibration of the electric hammer can be transmitted to the formwork through the vibrating plate and further transmitted to concrete, and the handheld concrete vibrating device is used for rapidly compacting the concrete so as to achieve the construction operation that the concrete can be vibrated without stretching into the concrete; and moreover, the vibrating plate and the connecting rod are detachably connected in a limiting manner, and the vibrating plate can be replaced by a specific plate body according to actual requirements, so that the vibrating efficiency is effectively improved, and the operation difficulty is reduced.

The present invention improves the convenience of a handle and a work machine. This hammer drill is provided with: a handle holder 21 that connects to a cylinder housing that extends along a first axis of a work machine body so as to be able to rotate in a first circumferential direction around the first axis; and a side handle 20 that connects to the handle holder 21 so as to be able to rotate in a second circumferential direction. Furthermore, the hammer drill is provided with a fixing section 9 that can fix the handle holder 21 to the cylinder housing and can fix the side handle 20 to the handle holder 21. The fixing section 9 allows independent adjustment of a first fixing force for fixing the handle holder 21 to the cylinder housing and a second fixing force for fixing the side handle 20 to the handle holder 21.

The invention relates to the field of drill rod quenching, in particular to a mining prying trolley breaking hammer drill rod quenching device which comprises a rectangular plate, a rectangular frame is arranged on the rectangular plate, through grooves are formed in the two sides of the rectangular frame, transverse plates are arranged in the through grooves in a sliding mode, sliding grooves are formed in the transverse plates, and sliding plates are arranged in the sliding grooves in a sliding mode. One side of the sliding plate extends out of the through groove and is provided with a bearing unit, rotating lead screws are rotatably arranged on the inner walls of the two sides of the rectangular frame in a penetrating mode, the rotating lead screws are in threaded connection with the transverse plate, a heating frame is arranged on one side of the rectangular frame, a plurality of heating cavities are jointly formed in the outer walls of the heating frame and the rectangular frame, and heating detection units are arranged in the heating cavities; the transverse plate is driven by the rotating lead screw to slide back and forth along the through groove, the sliding plate is finely adjusted left and right in the sliding groove of the transverse plate through meshing of the driving gear and the movable rack, the position of the bearing unit can be accurately controlled through cooperation of the sliding plate and the sliding plate, it is ensured that the drill rod can accurately enter the cleaning unit, the heating unit and other treatment units, and it is ensured that all procedures are conducted in order.

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.

A hammer drill (1) comprises a motor (6), a cylindrical tool holder (35), an intermediate shaft (36), a rotation conversion section (58), a mode switching component (43), a restricting component (71), and an actuating component (73). A first switching state of the restricting component (71) by the actuating component (73) effects a first operating mode in which the rotation of the tool holder (35) and an impact movement of the impact section (50) can be carried out simultaneously in conjunction with a retraction of the tool holder (35). A second switching state of the restricting component (71) by the actuating component (73) effects a second operating mode in which the retraction of the tool holder (35) from the advance position is restricted and the tool holder (35) can only be rotated.The restriction member (71) is provided with a plurality of restriction portions (76) contacting the mode switching member (43) for restricting the retraction of the mode switching member (43).

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.

A cordless, hand-held power tool, such as a hammer drill / driver, a drill / driver, an impact driver, an impact wrench, etc., that includes a brushless direct current (“BLDC”) motor. Each of the hand-held power tool includes a removable and rechargeable battery pack, electronics, and a BLDC motor that have been designed and balanced to produce a high-performance-capable (e.g., high-power, high-current, high-torque) hand-held power tool. The hand-held power tool is capable of delivering high instantaneous (i.e., short duration) current to the BLDC motor for short-duration high power operation and high continuous (i.e., long duration) current to the BLDC motor for long duration high power operation. Additionally, the short and long duration power is capable of being provided in a smaller (in size) and lighter (in weight).

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.

A hammer drill assembly is arranged for coupling to a drill string, wherein the drill bit is releasably attached to a driver sub via a retaining sleeve. The retaining sleeve includes a body that extends between a ring at its forward end and a plurality of tips at its rearward end. Also, methods of attaching and detaching a drill bit from the rest of the assembly are provided.

A handheld electric power tool, in particular a hammer drill and / or a cutting hammer, has an electro-pneumatic impact mechanism, which has a transmission housing, a guide tube at least partially arranged in the transmission housing, an excitation piston movable in the guide tube in the axial direction, a connecting rod connected to the excitation piston, and an eccentric wheel, which is connected to the connecting rod on one side and is rotatably mounted relative to the transmission housing via an end plate of the transmission housing on the other side, wherein the transmission housing is subdivided into at least a main housing and a cover housing separate from the main housing, so that the guide tube is at least partially supported on the main housing by the cover housing.

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.

To provide a hammer drill that can further select rotation modes having different aspects without depending on a mechanical structure and can be still compacted and is excellent in usability.SOLUTION: A hammer drill 1 includes a motor 6, a controller 16, a tool holder 35, an intermediate shaft 36, a rotation converting part 58 and a change plate 43, and can select a hammer drill mode in which rotation of the tool holder 35 and striking operation by a striking part 50 can be performed simultaneously and a rotation-only mode in which only rotation of the tool holder 35 can be performed, by active / non-active switching of the rotation converting part 58 by the change plate 43, When selecting the rotation-only mode, the hammer drill can further select a first rotation mode (clutch mode) and a second rotation mode (drill mode) in which rotation control of the motor 6 by the controller 16 is different from each other.SELECTED DRAWING: Figure 2

A hammer drill is provided including at least one cylinder, in which at least one piston is mounted such that it can be moved axially between an upper and a lower end position, wherein the cylinder has at least one lower fluid supply, which can be cyclically supplied with a drive fluid, wherein the cylinder is closed with an upper cover and a lower cover, wherein, in the lower end position, the piston is in contact with an inner side of the lower cover and a ring gap is formed between the entire casing surface of the piston and the inner wall of the cylinder. A method for deep drilling using a hammer drill of this type is also provided.

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 present invention provides a power tool. A hammer drill (1A) has a motor (2), a housing (10), a battery holder (5A), and a buffer member (6A). The housing (10) is for accommodating the motor (2). The battery holder (5A) is configured to detachably hold a battery (8) for supplying electric power to the motor (2). The battery holder (5A) is held by the housing (10) in a state capable of moving relative to the housing (10). The buffer member (6A) is held by the housing (10). The buffer member (6A) is arranged so as to cross the moving direction of the battery holder (5A), and is interposed between the battery (8) and the housing (10) when the battery (8) is mounted on the battery holder (5A). According to the present invention, a technique for protecting a battery in a power tool configured to detachably hold a battery can be provided.