13 results about "Shrink-fitting" patented technology

A friction stir welding device includes: a pin extending along an axis; a shoulder having a cylindrical shape and coaxially surrounding an outer periphery of the pin; and a driver that allows the pin and the shoulder to rotate about the axis and to advance and retract along the axis individually. The shoulder includes a shoulder main body having a distal end to be plunged into a welding target, and a shoulder adapter having a fit hole in which a proximal end of the shoulder main body is shrink-fitted and connecting the shoulder main body and the driver to each other.

A task of insertion of a tool is continued even when the insertion of the tool is failed in a shrink fitting method. A shrink fitting system for shrink-fitting a tool to a holder includes: a heating device that heats the holder; an insertion device that inserts the tool into the heated holder; and a control device for the shrink fitting system. The insertion device includes a sensor that detects a failure of insertion of the tool into the holder. Based on the failure of the insertion of the tool into the holder being detected, the control device performs at least one of outputting, to the insertion device, a command for adjusting an insertion position of the tool or for replacing the tool and outputting, to the heating device, a command for re-heating the holder.

The utility model relates to the technical field of liquid cooling transmission, and discloses a corrugated hose special for liquid cooling. Comprising a first corrugated pipe and a second corrugated pipe, the top end of the first corrugated pipe is connected with the surface of the second corrugated pipe in a clamped mode, a connecting mechanism is arranged at the contact end of the first corrugated pipe and the second corrugated pipe, and the connecting mechanism comprises a connecting block fixedly connected to the surface of the first corrugated pipe. A clamping and pressing structure is designed on the inner conical surface of the first corrugated pipe, a conical surface connector is designed to have the taper of 5 degrees and is matched with a butt joint rod, radial shrinkage is generated during pressing, and metal-rubber dual sealing is achieved in cooperation with a shrinkage clamping ring. When the poke rod is pressed, the spring lock catch below the conical surface connector is connected with a clamping hole formed in the second corrugated pipe in a clamping mode, and rapid clamping is achieved. And when disassembly is needed, clamping between the spring lock catch and the clamping hole can be canceled only by pressing the poke rod again, so that quick disassembly is achieved, and meanwhile, the spring lock catch supports the IP protection level and can be suitable for more use scenes.

The utility model relates to the technical field of stamping part machining, in particular to stamping part edge grinding equipment which comprises a workbench, a moving structure and a grinding structure. The two ends of the bottoms of the two moving structures are slidably connected with the edges of the two sides of the upper surface of the working table top. The grinding structure is hung on the surface of one side of the moving structure and comprises a base plate, hanging rods are fixedly installed at the bottoms of the two sides of the base plate, an electric push rod is hinged to the bottom of one side of the base plate, the lower ends of the two hanging rods are hinged to the two sides of the connecting base, and the output end of the electric push rod is hinged to one side of the connecting base. According to the automatic polishing device, the polishing structure is carried by the moving structure to be close to the position, needing to be polished, of a workpiece and continuously moves and polishes the workpiece, meanwhile, the connecting base can be controlled to conduct angle deflection through contraction of the electric push rod in cooperation with hoisting of the hoisting rod, and then angle adjustment is conducted on the polishing end of the polishing structure so that the polishing end can be attached to edge structures of various shapes of different stamping parts; and the working adaptability is extremely high.

The present invention provides a rotating electromachine that can reduce the compressive stress generated when connecting the stator to the casing by shrink fitting. [Solution] The stator (21) has a connecting portion (100) that connects to the casing (11). The connecting portion (100) has a first hole (101) whose radial length (a1) is longer than the length (b1) perpendicular to the radial direction when viewed from the axial direction, and a second hole (102) whose radial length (a2) is shorter than the length (b2) perpendicular to the radial direction. The first hole (101) and the second hole (102) are arranged alternately.

A method operates a shrink-fitting device having an induction coil for heating the sleeve section of a tool holder while avoiding temperatures that are detrimental to the sleeve section. Provision is made for a plurality of different characteristic variables of the induction process that change during heating, in particular if the sleeve section reaches a critical temperature, to be monitored, and for heating of the sleeve to be ended if at least one of the characteristic variables exceeds a previously defined limit value.

In accordance with a method for operating a shrink fit device having an induction coil for heating a sleeve section of a tool holder while avoiding temperatures detrimental to the sleeve section, the method proposes to monitor a plurality of different characteristic variables that vary during heating during the induction process, a plurality of different characteristic variables which vary when the sleeve section reaches the critical temperature, in particular when the sleeve section reaches the critical temperature, and terminating the heating of the sleeve if at least one of the characteristic variables exceeds a previously defined limit value.

In a motor for an electric compressor, when a housing and a stator are fixed by shrink fitting, if fastening is too strong, an excessive force is applied, and there is a problem that the stator is deformed or an interval (air gap) between the stator and a rotor deviates from a design specification.SOLUTION: In the motor for the electric compressor provided with a stator and a rotor in a housing, the housing is provided with a recessed part on an inner wall of a projecting part projecting inward in the radial direction, the stator is provided with a projecting part corresponding to the recessed part on an outer peripheral surface, and the projecting part and the recessed part are fixed by shrinkage fitting.SELECTED DRAWING: Figure 5

Graduated mold (1) for powder forming of metal powder, comprising: an inner ring (2) formed from a sintered hard alloy and having a cylindrical shape, and an outer ring (3) having a cylindrical shape, which is attached to an outer circumference of the inner ring (2) by shrink fit, wherein a recessed section (4) for forming, comprising a step section (7), is formed on an inner side of the inner ring (2), wherein a flange section (6) which engages in a punch plate (5) is formed on an outer circumference of the outer ring (3), wherein only the flange section (6) of the stepped shape (1) is held by the punch plate (5), while a lower surface of the stepped shape (1) is not held by any further element, and wherein a shrinkage fit ratio of the outer ring (3) to the inner ring (2) is set to a value which falls within a range of 0.12% to 0.25%.

A task of insertion of a tool is continued even when the insertion of the tool is failed in a shrink fitting method. A shrink fitting system for shrink-fitting a tool to a holder includes: a heating device that heats the holder; an insertion device that inserts the tool into the heated holder; and a control device for the shrink fitting system. The insertion device includes a sensor that detects a failure of insertion of the tool into the holder. Based on the failure of the insertion of the tool into the holder being detected, the control device performs at least one of outputting, to the insertion device, a command for adjusting an insertion position of the tool or for replacing the tool and outputting, to the heating device, a command for re-heating the holder.

The utility model discloses a concrete structure detection device for constructional engineering quality detection, which comprises a rebound apparatus, one side of the outer wall of the rebound apparatus is provided with a buffer holding frame, one end of the rebound apparatus is connected with a buffer seat, the buffer holding frame comprises a holding handle, the outer wall of one side of the holding handle is provided with a finger groove, and the finger groove is connected with the buffer seat. Buckle plates are distributed on the inner walls of the two sides of the grip, rebound apparatuses are clamped to the inner walls of the buckle plates, buffer grooves are formed in the two ends of the buckle plates, springs are distributed on one sides of the inner walls of the buffer grooves, and damping blocks are connected to the other ends of the springs. When the detection device detects the springback stress, the generated linear acting force can be transmitted to the holding position of the holding handle through the instrument, at the moment, the buckle plates on the inner walls of the two sides of the holding handle contract through the springs in the buffer grooves and are matched with the damping blocks for connection to reduce the acting force of linear impact, and therefore the buffering effect is achieved; therefore, the holding stability in the use process is kept.

The utility model discloses a kind of waste recovery devices for forklift counterweight casting, it is related to forklift counterweight production technical field, including hydraulic support platform and recovery support frame, the upper wall surface of recovery support frame is installed in hydraulic support platform, four anti-vibration dampers are installed in the upper wall surface of recovery support frame, the rear wall surface of recovery support frame is hinged with auxiliary fixing frame, the two sides of recovery support frame inside are respectively equipped with auxiliary support frame, two auxiliary sliding grooves are opened in hydraulic support platform, two hydraulic telescopic rods are connected in hydraulic support platform, the inner wall surface of recovery support frame is equipped with counterweight crusher;The utility model has the advantages that: through four anti-vibration dampers repeatedly contract, cooperate four reset springs to further relieve impact force, prolong the service life of feeding guide frame, solve the problem that the feeding inlet of existing waste recovery device for forklift counterweight casting is rigidly connected with recovery support frame, is frequently impacted and is easily damaged.

The invention relates to a module (10) for an aircraft turbine engine, the module (10) including: • - a rotor including an impeller (20) of a centrifugal compressor (12) and a wheel (22) of a turbine (16), the impeller (20) and the wheel (22) being connected to each other by a shaft (18) which is movable about an axis (A); • - a stator including a rectifier-diffuser (26) mounted at the outlet of the impeller (20) and a turbine nozzle (28) mounted upstream of the wheel (22), • - an annular combustion chamber (14) also forming part of the stator and positioned axially between the rectifier-diffuser (26) and the nozzle (28); and • - an arrangement of metal sheets (32) connecting the rectifier-diffuser (26) to the nozzle (28), this arrangement of metal sheets (32) also being part of the stator and defining an annular cavity (54) which extends around and at a distance from the shaft (18) and is surrounded at a distance by the chamber (14), the arrangement of metal sheets (32) comprising a first annular metal sheet (32b) which defines an inner periphery of the cavity (54) and which comprises an upstream end (32b1) including an outer cylindrical surface (60) for shrink-fitting onto a portion of the arrangement of metal sheets (32), and a downstream end (32b2) which includes an inner cylindrical surface (62) able to slide axially over another portion of the arrangement of metal sheets (32) or an element connected to this arrangement of metal sheets (32).