8568results about "Spanners" patented technology

A power tool includes a housing, a motor being controlled to run at a speed between 15,000 rpm and 32,000 rpm, an output spindle, a rotary impact assembly configured to transmit rotational motion with intermittent rotational impacts from a cam shaft to the output spindle, a hammer of the rotary impact assembly having an inertia between 400 kg·mm2 and 3,000 kg·mm2, and a single stage compound planetary transmission including a first planet gear meshed with a sun gear and a second planet gear meshed with a ring gear, the compound planet gear being carried by a planet carrier to achieve a gear reduction ratio between 14:1 and 30:1. The power tool is configured to achieve a fastening torque of at least 900 foot-pounds (a) in a time of less than 3.5 seconds, and / or (b) with an input energy of less than 2,500 Joules.

The present invention provides a micro-action ratchet wrench. a wrench has a main hole arranged thereon and a first and a second arc surfaces recessed in the wall surface of the main hole for correspondingly forming the first and second chambers, so that the centerlines of the first and second chambers intersect with the center of the main hole to maintain a set angle. The main hole is coupled with a ratchet. The ratchet has an outer connection portion and an outer teeth portion. The first and second chambers are correspondingly equipped with the first and second detents and the first and second springs. The first and second detents are provided with pawls, the first and second springs actuate the corresponding first and second detents, so that the pawls of the first and second detents can differentially engage the outer teeth portion of the ratchet through the set angle configuration.

A tool (1) and a method for assembling and / or for disassembling a sanitary insert part (2), in particular a sanitary outflow orifice (3), are provided. Here, the tool (1) is designed with a latching element (4) and / or mating latching element (5) for a preferably releasable and / or captive connection (6) to the sanitary insert part (2).

One or more settings of a power tool device can be automatically adjusted based on a location of the power tool device relative to a work object. Work object data that indicate a work object type for the work object can be determined, and work location data can be determined based on the work object data. The work location data indicate work locations on the work object where a power tool device action is to be performed. A position of the power tool device is also determined. An electronic controller can determine a power tool device setting corresponding to the power tool device action to be performed at the work location nearest to the power tool device position. The power tool device setting is transmitted to the power tool device by the electronic controller, where the power tool device setting indicates an operating parameter of the power tool device.

The ratchet mechanism comprises a head portion with a circular central housing, the inner surface adjoining the handle portion having a further recess characterized by a plurality of engagement ramp profiles arranged not unlike low angled gear teeth within the recess arc. A pawl is located within the recess, with a corresponding plurality of engagement ramp profiles abutting the recess engagement ramp profiles and incorporating an inner facing toothed face of similar corresponding pitch and profiles as the drive element teeth in order that they can mechanically mesh into one another when ratchet is operated in the drive direction, the pawl inward force being substantially evenly distributed along the pawl toothed front face by the use of several similar engagement ramp profiles urging all the pawl teeth into the required locking engagement with the drive element simultaneously.

The invention provides a fixed axial force construction device for detecting bolt pre-tightening force in real time, and relates to the technical field of bolt detection and control. Temperature changes of all parts of a bolt can be monitored in real time through a temperature data acquisition module, and a historical temperature change data set is formed; secondly, a warning threshold value is set through a warning threshold value setting module according to the average temperature and historical data of all parts of the bolt, and the stability and reliability of the pretightening force of the bolt at different environment temperatures are ensured; and furthermore, through an index generation module, the environment temperature, the assignment evaluation coefficient and the thermal expansion coefficient are comprehensively considered, a pre-tightening force fine adjustment index is generated, compensation fine adjustment is performed on the bolt pre-tightening force after the torque is applied currently, and dynamic adjustment and accurate control of the pre-tightening force are realized.

A rotary impact tool includes a motor and an impact mechanism. The impact mechanism includes a cam shaft with a first cam groove rotatably driven by the motor, a cam ring received over the cam shaft with a second cam groove on its inner surface and a third cam groove on its outer surface, a hammer received over the cam ring with a fourth cam groove on its inner surface, an anvil with an output shaft and configured to be selectively engaged by the hammer, a spring configured to bias the hammer toward the anvil, a first ball received in the first and second cam grooves to couple the cam ring to the cam shaft, and a second ball received in the third and fourth cam grooves to couple the hammer to the cam ring.

A power tool includes a housing, a motor mounted within the housing and including a stator with an outer diameter and a rotor having a shaft configured to rotate about an axis relative to the stator. The power tool also includes a gear assembly operably coupled to the motor and including a ring gear fixed relative to the housing and planet gears meshed with the ring gear. A drive assembly is operably coupled to the gear assembly to receive torque from the shaft through the gear assembly. The power tool also includes a rear bearing rotatably supporting a rearward portion of the shaft and a forward bearing rotatably supporting a forward portion of the shaft. A distance measured between a front edge of the rear bearing and a rear edge of the forward bearing is less than the outer diameter of the stator.

The present disclosure is of an assembly between the drive head of a ratcheting wrench and a ratcheting wrench handle. A fastener is provided between the drive head and the handle. The drive head is pivotably connected to the handle by the fastener. The fastener is inserted through apertures of the drive head and the handle. The fastener is threaded at one end. An aperture of the handle is correspondingly threaded. The threads of the fastener and / or the handle do not extend the entire length of the aperture. The aperture with the thread may further have an unthreaded counterbore. The unthreaded counterbore mates with or abuts directly against an unthreaded portion of the fastener.

A power tool includes a motor, an output part, a housing, a control circuit board, and a panel. The motor includes a rotor rotatable about a motor rotation axis extending in a front-rear direction. The output part is disposed forward of the motor and is rotated by a rotational force of the rotor. The housing includes: a motor housing part that houses the motor; a grip part that extends downward from the motor housing part; and a battery holding part that is connected to a lower end of the grip part. The control circuit board is housed in the grip part and is configured to control the motor. The panel is disposed at a rear portion of the battery holding part and is manipulated to change a control method of the motor.

A mechanical percussion mechanism for a striking drive of an insertion tool of a handheld power tool includes a rotatably supported intermediate shaft, an impact body, and a rotatably supported output shaft. The intermediate shaft and the impact body each include at least one guide groove for guiding at least one guide body. A guide surface of the guide groove of the intermediate shaft and / or a guide surface of the guide groove of the impact body is configured as a kink-free and / or edge-free surface.

The invention relates to the technical field of hot chamber dismounting tools, and provides a hot chamber dismounting device and method for an active area of an irradiation device. The device comprises a fixed base used for placing an active area, a first limiting piece used for limiting the active area from moving upwards, a wrench used for screwing a sunk screw, a cross-shaped gripper used for grabbing a hanging connector, a second limiting piece used for limiting a single sample module from moving upwards, and a grabbing piece used for grabbing a positioning pressing plate. The single-hook tool is used for grabbing a separation blade; and the double-hook tool is used for grabbing a sample plate. According to the invention, each dismounting tool is combined with the manipulator, each part in the active area can be dismounted, and in addition, the pins at the bottom of the active area are inserted into the positioning holes in the fixed base, so that the active area can be prevented from toppling over in the operation process; meanwhile, the first limiting piece can limit the upward movement of the active area, and the second limiting piece can limit the upward movement of a single sample module, so that other parts are prevented from being taken away when a single tool is matched with a manipulator to disassemble a certain part, and the operation is more convenient.

An insertion tool is provided. The tool includes a flexible section comprising a plurality of rigidizable links, an end effector actuator, and an end effector coupled to the flexible section. A flexible is shaft inserted through the flexible section, wherein torque is transferred from the end effector actuator to the distal end via the flexible shaft to cause a rotation of the end effector. A tool may include a tool-less disconnect interface between the end effector and the flexible shaft.

Tool (1) for assembling and / or disassembling a sanitary insert (2), in particular a sanitary outlet nozzle (3), characterized in that the tool (1) has locking means (4) and / or counter-locking means (5) to form a preferably detachable and / or captive connection (6) with the sanitary insert (2).

The invention discloses a tooth-shaped structure of a bolt fixing tool. The tooth-shaped structure comprises a drive part, a looping part is concavely arranged inside the drive part; the inner periphery of the looping part is a hollow structure and is approximately a polygonal structure, the intersectional angle between edges of the polygonal structure of the looping part are respectively provided with an escape groove, the escape groove is a recessed arc structure, an opening of the escape groove and an opening of the adjacent escape groove take on a straight edge, the straight edge is a lank line section; a top surface is respectively arranged at the center of the straight edges between two adjacent escape grooves, the top surface is in a planar straight line section structure, the top surface is arranged at the straight edge between the two adjacent escape grooves and is superposed on the straight edge; a first groove and a second groove are respectively recessed between the escape groove and the top surface, the first groove is closer to the escape groove, the second groove is closer to the top surface, the first and the second grooves are arranged in line symmetry with another first and second grooves; based on the intermediate vertical line of the distance between the two side walls of the escape groove with the arc structure, the first and the second grooves are arranged in line symmetry with another first and second grooves by the central vertical line of the distance between the two side walls of the arc structure of the escape grooves. The tooth-shaped structure of a bolt fixation tool can not cause slipping and bruting of the bolt fixing part resulting from the stress concentration of point contact.

A hand-held power tool is configured to receive an input indicative of a clutch setting for an electronic clutch from the tool operator, where the clutch setting is selectable from a drill mode, an automated drive mode and one or more user-defined drive modes. Each of the user-defined drive modes specifies a different value of torque at which to interrupt transmission of torque to the output spindle. In an automated drive mode, the controller interrupt torque to the output spindle in an automated manner when a fastener being driven reaches a desired stopping position. In a selected one of the user-defined drive modes, the controller sets a value of a maximum current threshold in accordance with the selected one of the user-defined drive modes and interrupts torque to the output spindle when current measures exceeding the maximum current threshold.

An impact tool includes: an impact mechanism, where the impact mechanism includes an impact block driven by a drive shaft and a hammer anvil receiving an impact from the impact block, and the hammer anvil is connected to an output shaft; and a controller configured to control an electric motor. The controller is configured to, when the impact tool is in a low-speed mode and it is detected that the impact mechanism applies an impact force to the output shaft, perform the operations periodically: determining that the impact mechanism impacts a preset number of times and controlling the electric motor to shut down for a preset period and then restart.

An electric tool includes a body and a display device. The body has a main body portion and an operating portion. The body has a head portion and a rear portion that are located on a straight axis which is virtual. The operating portion has a connecting portion and a holding portion. Two ends of the connecting portion are respectively connected to the rear portion and the holding portion. The holding portion is located on the straight axis. A distance is provided between the holding portion and the rear portion. The rear portion has a mounting wall facing the holding portion. The display device is disposed on the rear portion and has a display portion exposed outside the mounting wall to show an operational status of the electric tool. Therefore, the holding portion could shield the display portion, reducing the likelihood of damage to the display portion due to collisions.

A nested locknut wrench system includes a first wrench and a second wrench. Each wrench has a base portion having a flat portion including at least one magnet. Each wrench has a first extension portion extending perpendicularly from a first end of the base portion. Each wrench has a first arc-shaped finger extending perpendicularly from the first extension portion and having a first hook member extending radially inward from the first arc-shaped finger. Each wrench has a second extension portion extending perpendicularly from a second end of the base portion opposite the first end. Each wrench has a second arc-shaped finger extending perpendicularly from the second extension portion and having a second hook member extending radially inward from the second arc-shaped finger.

An impact tool includes a controller configured to control power being delivered to the and operable in one of: (a) a normal mode where the controller allows power to be delivered to the motor so that the impact mechanism transitions from operation in the rotary mode to operation in the impacting mode when an output torque exceeds a normal transition torque; and (b) a control mode where the controller controls power being delivered to the motor so that the impact mechanism transitions from operation in the rotary mode to operation in the impacting mode when an output torque exceeds a control transition torque that is greater than the normal transition torque.

A power tool includes a housing, a motor supported within the housing, the motor including a stator and a rotor, and a PCBA supported within the housing, the PCBA including a sensor configured to detect rotation of the rotor and an indicator assembly. The indicator assembly is configured to indicate an operational parameter of the power tool.

A light unit is less likely to have lower light emission performance upon receiving a shock. An electric work machine includes a motor, a housing including a motor compartment accommodating the motor and a grip protruding downward from the motor compartment, an output unit located frontward from the motor and operable with a rotational force from the motor, a substrate extending above, on a left, and on a right of the output unit, and a plurality of light emitters mounted on a front surface of the substrate at intervals in a circumferential direction of the output unit. A light emitter of the plurality of light emitters nearest an apex of the substrate immediately above the output unit is at a position shifted circumferentially by a predetermined angle from the apex.

A fastening device for keeping at least first and second parts assembled, the fastening device comprising a tubular body passing through the first and second parts, an expansion nut and a screw that is seated in the tubular body and cooperates with the expansion nut. To facilitate the removal of the fastening device, the screw has at least one shape, such as a recess positioned on the transverse face thereof, to prevent it from rotating using a first tool, and the expansion nut has at least one shape, such as a flat, to unscrew it using a second tool. Also an assembly comprising at least one such assembly device as well as a removal method.

A hand tool holder structure includes a first body, a second body, and a third body. The first body is provided with a receiving face, multiple first receiving grooves, a first limit portion, a first pivot portion, a recess, multiple first resting blocks, a snap-fit portion, and a first inclined face. The second body is provided with multiple second receiving grooves, a first receiving chamber, a third pivot portion, a first pivot hole, a second inclined face, a first locking block, a second limit portion, a first locking section, and a second locking section. The third body is provided with multiple third receiving grooves, a second receiving chamber, a fourth pivot portion, a second pivot hole, a third inclined face, a second locking block, a third limit portion, a third locking section, and a fourth locking section.

A powered ratchet tool includes a housing and a motor disposed within the housing. The motor has an output shaft rotatable about a first axis. The powered ratchet tool further includes a ratchet mechanism supported by the housing and operably coupled to the output shaft to be driven by the motor. The ratchet mechanism has a crankshaft assembly defining a variable crank radius configured to change an extent of each rotational stroke of the ratchet mechanism. Moreover, the powered ratchet tool includes an output drive operably coupled to the ratchet mechanism to be rotated about a second axis perpendicular to the first axis.

A power tool including a housing, a brushless direct current (DC) motor, an impact mechanism including a hammer and an anvil, an output drive device, a position sensor, and a controller. The position sensor is adjacent to a relief feature, which may be a recessed relief feature or a raised relief feature, and is configured to generate an output signal indicative of a position of the anvil. The controller is configured to calculate a drive angle based on the determined position of the anvil, and control the brushless DC motor based on the drive angle of the anvil.

A clamping tool is provided comprising a body, containing control circuits and electronic processing circuitry and having, at one end, a handle for gripping by an operator making the clamping, and on the other end, an arm. The arm comprises, at its free end, a seat that can be alternatively pluggable to a plurality of inserts suitable for engaging the tool with a corresponding type and / or dimension of a mechanical member on which the tool is configured to operate to perform a clamping operation. Sensor means are provided on the arm for detecting tightening conditions exerted on the mechanical member. Furthermore, a microprocessor electronic card is provided on the arm for receiving analogic signals from the sensor means, converting the signals into digital format, and handling transfer of the signals in digital format to the electronic processing circuitry.

A reversible, multiple-bit, hand tool for driving threaded fasteners and nuts includes a handle and a reversible tool holder assembly. The reversible tool holder assembly is insertable into the handle in either of two orientations to present two different ends provide multiple different configurations for driving different types of threaded fasteners and nuts. The reversible tool holder assembly includes a reversible adapter barrel, a first tool holder, a second tool holder, a first reversible bit holder, and a second reversible bit holder. Each of the tool holders can be selectively used as a nut driver with the holder assembly inserted in either orientation in the handle or can be removed from the adapter barrel and used separately as a power bit driver or a power nut driver (PND) that is received in any conventional chuck of a powered rotary tool.

The invention relates to the technical field of intelligent calibration, and discloses an intelligent calibration recognition method, device and equipment for an electric screwdriver head of an intelligent electric screwdriver and a storage medium, and the method comprises the steps: carrying out the data collection and feature extraction of the electric screwdriver head, and obtaining a feature data set; writing the equipment identification code and the feature data set into a storage chip of the electric screwdriver; constructing a projection neural network for back propagation training to obtain an intelligent calibration recognition model; when the electric screwdriver head is connected with a host, the equipment identification code and the feature data set in the storage chip are transmitted to the host; inputting the real-time working parameters and the feature data set into an intelligent calibration recognition model for parameter recognition and Kalman filtering calibration to obtain filtered calibration parameters; and judging a deviation value between the filtered calibration parameter and the initial calibration parameter, when the deviation value exceeds a preset threshold value, writing the filtered calibration parameter into the storage chip, and updating the calibration coefficient of the host, thereby solving the problem of inaccurate torsion caused by mixed use of the electric screwdriver heads.

An electric work machine can be compact. An electric work machine includes a motor, a tool holder rotatable with a rotational force generated by the motor, a substrate, a first light emitter including a first light-emitting element on a front surface of the substrate, and a second light emitter including a second light-emitting element on a back surface of the substrate.