357results about "Auxillary saw devices" patented technology

An apparatus has a tool having a tool plane and a handle. A longitudinal direction runs in the direction from the handle to the tool. An outer housing has an opening for cooling air. An electric motor is disposed in the housing and an air filter disposed on or in the opening. In a resting position on a horizontal plane, the base faces the plane. A cover lies opposite the base. A lateral surface interconnects cover and base. The outer housing, in a lateral view perpendicularly onto the tool plane, possesses a contour which in a projection onto the tool plane in the direction perpendicular to the tool plane delimits an imaginary housing surface. The filter in a projection onto the tool plane in the direction perpendicular to the tool plane possesses an outer contour delimiting an imaginary surface of at least 5% of the imaginary housing surface.

The invention belongs to the technical field of wood sawing, and particularly relates to wood sawing and segmenting equipment based on papermaking raw materials and an operation method thereof.The wood sawing and segmenting equipment comprises a base, a sliding plate is slidably connected to the top of the base, two supports are fixedly connected to the top of the sliding plate, and a supporting plate is rotatably connected between the two supports; according to the wood sawing and segmenting equipment based on the papermaking raw materials and the operation method of the wood sawing and segmenting equipment, a hydraulic cylinder controls a guide wheel to be pushed upwards, one side of a supporting plate tilts upwards, then a chain is in an inclined state, and after the chain tilts, logs slide downwards under the action of gravity and then are attached to a push plate; when the logs are conveyed upwards in an inclined mode, a third motor controls a cam to rotate, the cam is matched with a square groove, a chain swings left and right, the supported logs can be corrected through swinging of the chain, and the situation that the logs cannot be corrected due to the fact that the friction force between the logs and the chain is too large after the logs are inclined is avoided.

A dustless compound sliding miter saw with a built-in dust collection system is disclosed. The dustless compound sliding miter saw uses an extraction turbine to create a vacuum region at the end of the blade exist from the cut wood piecework, the blade housing has an external extraction channel and an external suction tube to maximize the dust collection. A retractable dust guard is utilized to confine the sawdust in the vacuum region to further maximize the dust collection. The compound sliding miter saw also utilizes anti-dust blade guard and air flow guide fins to optimize the airflow and the dust extraction. The compound sliding miter saw has a rail system that slides the blade from front to back and extends the maximum cutting length. The compound sliding miter saw has a built-in beveling mechanism to tile the blade and cut down through the wood at an angle.

A power tool operator protection system comprises a plurality of wearable position sensors configured to be worn by an operator of a handheld power tool; a power tool position sensor configured to detect the position of a handheld power tool; and processing equipment configured to generate a model of the operator based on the mutual positions of the respective wearable sensors relative to each other, the mutual positions defining the operator's posture; associate each of a plurality of limbs (32a-g) of the operator with a respective protection volume (30a-g); and based on the position and / or motion of the power tool in relation to the protection volume (30a-g) indicating an imminent danger that the working implement enters a protection volume (30a-g), generate a protection signal.

A cutter machine may include a cutter unit, a prime mover configured to drive the cutter unit, a housing including a housing body and a grip, wherein the housing body holds the cutter unit and houses the prime mover, and the grip extends from the housing body and is configured to be grasped by a user's hand, and a hand guard attached to the housing, configured to protect fingers of the user's hand grasping the grip, and being more deformable than the housing.

A circular saw includes a support surface for a workpiece and which has a saw blade slot, a main drive motor arranged below the support surface for driving a saw blade in rotational movement, and a saw blade holder connected to the main drive motor for the purpose of transmitting the rotational movement A height-adjustment apparatus, with a height actuator and a transmission element coupled to the saw blade holder are arranged to set the spacing between a saw blade holder and the support surface An electronic interface provides the input of a saw blade projection. A protection apparatus is connected by signals to a monitoring apparatus and the height actuator and is adapted to activate the height actuator for quick lowering of the saw blade holder when a dangerous situation is recorded by the monitoring apparatus.

The utility model discloses a portable lithium battery chain saw which comprises a cutting assembly, the cutting assembly comprises a shell, a mounting groove is formed in one side of the shell, a brushless motor is arranged on the inner wall of the shell, one end of the brushless motor is connected with a connecting shaft, one end of the connecting shaft rotatably penetrates through the shell, and a driving gear is detachably arranged at one end of the connecting shaft. The driving gear is located in the mounting groove, two sets of fixing frames are fixedly arranged on the inner wall of one side of the mounting groove through welding, a guide plate is detachably mounted through the fixing frames, open holes matched with the fixing frames are formed in one end of the guide plate, a saw blade is rotatably arranged on the outer wall of the guide plate, and one end of the saw blade is connected with the driving gear. A control handle is connected to one side of the shell, a start button is arranged on one side of the control handle, a grip is fixedly arranged on the outer wall of one side of the shell through bolts, a cover plate is fixedly arranged on the outer wall of one side of the shell through bolts, the cover plate is matched with the mounting groove, and a spraying assembly used for dedusting and cooling is connected to one side of the shell.

The invention relates to the technical field of chain saws, and discloses a chain saw with a safety protection structure, a second rotating shaft movably penetrates through the interior of a fixed cylinder, a protection frame is fixedly connected to one end of the second rotating shaft and is located on the outer side of a fixed cover body and the outer side of a shell, and the other end of the second rotating shaft is located in the fixed cylinder and movably sleeved with a second torsional spring; the other end of the second rotating shaft is fixedly connected with a push block on the outer side of the second torsional spring, and a touch switch is mounted on the outer side of the fixed cylinder and in the shell. When the chain saw moves downwards to be close to the leg of a person, a blocking frame on a protection frame abuts against the leg of the person, the protection frame is stressed to abut against the bottom of a limiting block and drives a second rotating shaft to rotate, the chain saw is supported through the protection frame, and a saw chain on a guide plate is prevented from being close to the leg of the person; meanwhile, the second rotating shaft rotates to drive the push block to abut against and press the outer side of the touch switch, the circuit is disconnected, the driving motor stops rotating, personnel are prevented from being injured, and guarantee is provided for personnel safety.

The application provides a handheld power tool, and relates to the technical field of electric tools.The handheld power tool comprises a housing, a handle arranged on the housing, a motor arranged in the housing, a transmission mechanism comprising a transmission component, a coaxially arranged output disc and a chain wheel, the transmission component being connected with the motor, and the output disc being matched with the transmission component, and a saw chain sleeved on the chain wheel; wherein the center line L1 of the saw chain intersects with the center line L2 of the motor at a first intersection point S1, the center line L1 of the saw chain intersects with the center line L3 of the handle at a second intersection point S2, and the first intersection point S1 and the second intersection point S2 are both arranged on the outer side of the output disc. By arranging the first intersection point S1 and the second intersection point S2 on the outer side of the output disc, the included angle between the saw chain and the motor and the handle is reasonably arranged.

A chainsaw is provided, enabling to remove sawdust conveyed inside a main body efficiently, which has a main body including: a guide bar; a saw chain wound around the guide bar and the drive sprocket; a drive sprocket disposed behind the guide bar, having a rotation shaft in a right / left direction of the main body and rotated to move the saw chain along the guide bar; and a guide wall including an arcuate first wall along the drive sprocket with a predetermined gap from the saw chain and a second wall extended rearward via a connecting portion to the first wall, and when seen from the right / left direction, a angle between: a first direction along a vertical direction of the main body; and a second direction passing through the center of the rotation shaft and an apex of the connecting portion is between 0° and 30°.

The utility model relates to the technical field of woodworking tools, in particular to an inner support special for a woodworking table dog hole. The device comprises a supporting piece, a pressing piece and an expansion piece. The pressing piece is arranged on the supporting piece in a threaded fit mode. The expansion piece is arranged on the supporting piece and located between the supporting piece and the pressing piece. According to the inner support special for the woodworking table dog hole, the expansion piece can generate radial expansion through screwing-in of the threads between the pressing piece and the supporting piece so as to form radial tensioning force, and the expansion piece can elastically recover through screwing-out of the threads so as to facilitate disassembly of the inner support; therefore, the operation is convenient, the mounting and dismounting efficiency is high, and the dog hole of the workbench cannot be damaged.

The utility model discloses a chain saw mechanism applied to a mechanical arm. The chain saw mechanism comprises an automatic tool changing electric spindle, a connecting base, a transmission mechanism, a lubricating oil supply system and a chain saw. A quick-change chuck is arranged at the output end of the automatic tool changing electric spindle; a first positioning plate is fixed to a shell of the automatic tool changing electric spindle, and a positioning hole is formed in the first positioning plate. The transmission mechanism, the lubricating oil supply system and the chain saw are all mounted on the connecting seat; the lubricating oil supply system is connected with the chain saw; a pin is fixed on the connecting seat, and the automatic tool changing motorized spindle is connected with the connecting seat through the matching of the positioning hole and the pin; a quick-change cutter handle is arranged at the input end of the transmission mechanism, and the automatic cutter-change motorized spindle drives the transmission mechanism through the cooperation of the quick-change chuck and the quick-change cutter handle; the transmission mechanism is used for transmitting the driving force of the automatic tool changing electric spindle to the lubricating oil supply system and the chain saw; the chain saw cutting device can be applied to mechanical production and is matched with a mechanical arm to cut a chain saw, so that the production efficiency and quality are improved.

A sawing device has a frame, a circular disc-shaped saw blade mounted rotatably with respect to the frame, and an emergency brake unit. The emergency brake unit has a blocking element, an actuator unit and a control unit. The blocking element has a bearing portion and a head portion designed to engage into the saw blade selectively for braking. The actuator unit is coupled to the blocking element in a normal blocking element position, such that the blocking element engages with the saw blade selectively with the actuator unit. The blocking element can be selectively disassembled from the frame separately from the actuator unit and / or from the control unit. A triggered emergency brake unit of a sawing device ready for operation may be provided. In this regard, a blocking element is disassembled separately from the actuator unit and / or separately from the control unit and an unused blocking element is mounted.

The utility model relates to the technical field of planing and sawing all-in-one machines, and discloses a heat dissipation device for a planing and sawing all-in-one machine, which comprises a base, the upper side of the base is connected with a supporting plate, the upper side of the supporting plate is provided with a cutting device, the lower end of a hydraulic rod is connected with a saw blade, one side of the saw blade is connected with a third motor, and the other side of the saw blade is connected with a fourth motor. The interior of the supporting plate is connected with a mounting box, the interior of the mounting box is connected with a gas collecting hood, the interior of the mounting box is connected with a first motor, the first motor drives a first fan to rotate, the first fan rotates to form airflow, meanwhile, a water tank is opened, and water in the water tank is sprayed out of an atomization spray head through a water pipe; the first fan blows water mist to the heat dissipation fins, heat on the heat dissipation fins is rapidly taken away in a water cooling and air cooling combined mode, meanwhile, under the action of the radiator, air circulation is further enhanced, hot air in the mounting box is rapidly discharged, and the heat dissipation effect of the first motor is improved.

The utility model relates to a full hydraulic control multifunctional firewood processor which comprises a main machine frame, a feeding conveying mechanism is arranged at the front end of the main machine frame, a locking mechanism is arranged above the feeding conveying mechanism, the locking mechanism comprises a locking piece, a locking hydraulic cylinder and a locking rotating shaft, the locking piece is fixedly arranged on the locking rotating shaft, and the locking hydraulic cylinder is arranged on the locking rotating shaft. The locking hydraulic cylinder drives the locking rotating shaft to rotate back and forth; a cutting mechanism is arranged behind the feeding conveying mechanism and comprises a cutting saw, a cutting hydraulic cylinder and a cutting rotating shaft, the cutting saw is fixedly arranged on the cutting rotating shaft, and the cutting hydraulic cylinder drives the cutting rotating shaft to rotate in a reciprocating mode; a sliding way is arranged below the cutting mechanism, a wood splitting blade is arranged in the sliding way, a wood splitting hydraulic cylinder is arranged at the front end of the sliding way and can push wood to abut against the wood splitting blade, and a discharging and conveying mechanism is arranged behind the sliding way. The automatic wood sawing and splitting machine integrates automatic feeding, hydraulic locking and fixing, hydraulic wood sawing, hydraulic wood splitting and automatic discharging, and is high in automation degree, strong in power output and high in working efficiency.

The invention relates to a safety device for a machine tool, comprisinga detection device which is designed to detect a potentially hazardous state for a part of the body of a user of the machine tool caused by a component of the machine tool which could cause injurya safety measure device which is designed to carry out a safety measure by means of which a hazardous state of the user of the machine tool is reduced or avoided by a component of the machine tool,a control device which is coupled to the detection device and the safety measure device in terms of signal technology and is designed to carry out an evaluation of a potentially hazardous state detected by the detection device on the basis of predetermined criteria and, depending on the evaluation, to trigger the safety measure device to carry out a safety measure,characterized in thatthe capture device comprises a head mount for attachment to the user's head and an image capture device attached to the head mount and aligned to perform image capture in the user's field of view, andthe control device is designed to perform the evaluation on the basis of images captured by the image capture device.

The invention relates to a sawing device (10) comprising a frame, a disc-shaped saw blade (12) rotatably mounted relative to the frame, and an emergency braking unit (24). The emergency braking unit (24) comprises a blocking element (26), an actuator unit (32) and a control unit (34). The blocking element (26) comprises a bearing portion (38) and a head portion (42) designed to selectively engage into the saw blade (12) in order to brake the saw blade. The actuator unit (32) is coupled to the blocking element (26) at least in a normal position of the blocking element (26) such that the blocking element (26) can be selectively engaged with the saw blade (12) by means of the actuator unit (32). In addition, the blocking element (26) can be selectively detached from the frame separately from the actuator unit (32) and / or separately from the control unit (34). The invention also relates to a method for preparing an activated emergency braking unit (24) of a sawing device (10) for operation. In this regard, the blocking element (26) is detached separately from the actuator unit (32) and / or separately from the control unit (34) and an unused blocking element (26) is mounted.

A work apparatus (1 figure 1) has a tool (9 figure 1) which can be driven in a rotating manner around a rotational axis 11 and a protective hood 10 which extends over at least a part of the periphery

The invention relates to a method for automatically determining cleaning, maintenance and / or repair information (Info) of a motor-driven machining tool (2), wherein the machining tool (2) has residues (RS) which are optically detectable from the outside and which are caused during operation of the machining tool (2), wherein the method comprises the following steps: a) optically detecting the residues (RS); b) classifying the detected residues (RS) depending on the kind (AT) of the residues (RS); c) determining cleaning, maintenance and / or repair information (Info) on the basis of the classification; and d) outputting the determined cleaning, maintenance and / or repair information (Info).

The present invention relates to a portable handheld saw machine including a saw unit (11) having a sawing tool holder (14) for a sawing tool (15) and a sawing drive motor (12) for driving the sawing tool holder (14), and a guide device (17), wherein the guide device includes a guide body (18) having a guide surface (19) extending along a longitudinal axis (L) for guiding the handheld saw machine (10) along a working direction (AR) on a workpiece (W) or a guide rail (200), and the guide surface (19) is moved during sawing operation of the handheld machine tool. The present invention relates to a portable hand-held saw machine capable of making saw cuts (SAE) in a workpiece (W) along a working direction (AR) using a saw tool (15) that protrudes in front of a saw drive motor (12) (19), and the hand-held saw machine has a safety device (100) for safely fixing a sawing tool holder (14) for tool replacement of the saw tool (15), the safety device (100) safely fixing the sawing tool holder (14) so ​​that it is not driven by a sawing drive motor (12) in a safety position (SG) and releasing it in a saw operating position (FS). The handheld saw (10) comprises a creasing unit (31) having a creasing tool holder (34) for a creasing tool (35), in particular a creasing tool saw blade, arranged in a guide device (17) in front of the saw unit (11) in a working direction (AR), and a creasing tool drive (32A), in particular a creasing tool drive motor (32) for driving the creasing tool holder (34), so that during creasing operation of the handheld saw tool, a creasing tool (35) protruding in front of the guide surface (19) can be used to make a creasing mark (RI) in a workpiece (W) that is positioned in front of a saw cut (SAE) to be made in the working direction (AR), and a safety device (100) safely fixes the creasing tool holder (34) in a safety position (SG) so that it cannot be driven by the creasing tool drive (32A) and releases it in a saw operating position (FS).

Electric work equipment includes a body case, a work tool formed to protrude forward from a front portion of the body case, a motor housed in the body case and configured to drive the work tool, a battery removably disposed in the body case and configured to supply power to the motor, a handle protruding from the body case and configured to be gripped, a trigger lever disposed on a lower surface of the handle and configured such that power is supplied from the battery to the motor when pulled, and a switch panel disposed on an upper surface of the handle and including a power switch, the power switch being configured to make the motor operable when turned on and to stop operation of the motor when turned off, and is inclined downward from a right to left side thereof or from the left to right side thereof.

According to examples, a power tool may include a chassis and a guide bar mounted to the chassis, the guide bar having a central axis. The power tool may also include a handle attached to the chassis above the central axis of the guide bar and a motor housed within the chassis to drive a chain around the guide bar, in which the motor is positioned beneath the central axis of the guide bar and a central axis of the motor is at a certain angle with respect to the central axis. The handle, the motor, and the battery pack mount may be positioned with respect to the chassis to cause the power tool to substantially be balanced in both lateral and longitudinal directions about a location near the trigger mechanism when the battery pack is mounted to the battery pack mount.

The present invention provides a chainsaw, specifically relating to the field of cutting tools. The chainsaw comprises a housing, a guide plate, a saw chain, a tool guard, and a bolt. A guide block and a first connecting hole are provided on one side of the housing. The guide plate is provided with a retaining groove that cooperates with the guide block. The saw chain is mounted on the guide plate and driven by a drive device disposed within the housing. The tool guard is provided with a second connecting hole corresponding to the first connecting hole. The bolt is rotatably retained on the tool guard and axially movable along the second connecting hole. When the guide plate is installed, the bolt passes through the guide plate and is threadedly connected to the first connecting hole to secure the guide plate between the tool guard and the housing. The chainsaw of the present invention is simple to assemble, and because the bolt remains attached to the tool guard, it can be prevented from being lost during assembly.

A circular saw may include a base plate and a blade guard assembly coupled to the base plate, the blade guard assembly including an upper blade guard and a lower blade guard movable between an extended position and a retracted position. A circular saw may include a housing assembly coupled to a saw blade guard assembly, an output shaft, and a saw blade clamp coupled to the output shaft, the saw blade clamp configured to hold a saw blade. The circular saw may include a brushless direct current (DC) motor positioned within the housing assembly and operable to rotate the output shaft. The circular saw may include an electronic controller configured to perform a field weakening operation on the brushless DC motor.

The invention discloses a fully automatic wood sawing equipment, including a wood feeding device and an automatic wood sawing device. The transmission frame of the wood feeding device has a transmission belt, a clamping cylinder is fixed on a conveyor mounting plate, a piston rod of the clamping cylinder is connected to the clamping plate, an infrared sensor is arranged in the transmission frame, and a controller is arranged in a control cabinet in the wood feeding device; the automatic wood sawing device includes a fixed support platform, a liftable wood saw working platform is arranged on the fixed support platform, a wood saw is placed on the wood saw working platform, a temperature sensor and a speed sensor are installed on the wood saw, a wood saw grip clamping tool, an automatic start wood saw tool, and a wood saw throttle loading tool are arranged on the wood saw working platform, and an industrial computer, a fuel storage tank, a chain plate oil storage tank, and a fuel consumption meter are also arranged on the fixed support platform. The invention can effectively reduce labor intensity and realize automatic wood sawing operation. At the same time, the parameters of the wood saw engine can be monitored in real time during the operation.

The present invention provides a hand-held electric tool comprising a housing and an operating component. The housing has a main body section and a grip section extending from the rear side of the main body section, and the front end of the main body section is provided with a mounting interface. The operating component is mounted at the mounting interface of the housing and protrudes from the housing. A chip removal hole is formed in the bottom wall of the main body section of the housing, and a protective portion that extends downwards at least partially is provided at the bottom end at the position where the main body section joins the grip section. The bottom of a hand-held electric tool of the present invention is substantially closed, except for being provided with a chip removal hole, which allows removal of chips while preventing a user's hand from being inadvertently extended into the housing and contacting a component operating at a high speed. Moreover, chips removed through the chip removal hole are blocked by the protective portion, without reaching the grip section, which offers considerable advantages in terms of safety and hygiene.