11results about How to "Coaxiality error is small" patented technology

The utility model discloses a kind of two-stage planetary reduction module suitable for frameless motor, belong to robot movement field, to solve the problem of poor integration when existing frameless motor adapts reduction module, insufficient reduction capacity.The module includes motor, two-stage planetary reduction mechanism, motor shell, shell end cover and output flange;Motor contains coaxially arranged stator winding and motor rotor, and motor rotor is ladder shaft structure;Two-stage planetary reduction mechanism is composed of primary reduction unit and secondary reduction unit, primary sun gear is connected with motor rotor by first sun shaft, secondary sun gear is connected with primary planetary gear by first planet carrier, and output flange is connected with second planet shaft, and first gear ring is arranged on the inner wall of motor shell.The utility model does not need transition component, and integration is high, two-stage reduction can realize high transmission ratio, and transmission precision is high, support is stable, effectively improve equipment load capacity and operating reliability.

The utility model discloses a pump room fire-fighting pipeline modularization rapid installation structure, and relates to the technical field of fire fighting. The device comprises a first pipeline and a second pipeline, wherein a modularized fixing assembly is fixedly connected between the first pipeline and the second pipeline. The six threaded rods can be synchronously driven to rotate at a constant speed through the driving gear-gear ring meshing transmission mechanism, the traditional manual one-by-one screwing operation is shortened to be within 2 minutes, the single pump room pipeline installation efficiency is greatly improved, the driven gear and the threaded rods are coaxially fixed, the consistency of pretightening force of all bolts is ensured, errors are reduced, and the working efficiency is improved. A hexagonal groove in the top of the driving shaft is compatible with an electric wrench and a hydraulic driving device, mechanical operation is supported, dependence on artificial experience is thoroughly eliminated, and the device is particularly suitable for pump room construction in high altitude or narrow space; and operators are liberated from high-strength stooping and climbing operation.

The utility model discloses a grooving cutter with a vibration reduction cutter bar, and relates to the technical field of grooving cutters. The tool bar comprises a tool bar sleeve, one side of the tool bar sleeve is fixedly connected with an end head, and one side of the end head is provided with a tool; a vibration reduction assembly is arranged in an inner cavity of the cutter bar sleeve and comprises a damper fixedly connected to the inner cavity of the cutter bar sleeve. Through the design of the vibration reduction assembly, the vibration resistance of the grooving cutter is effectively improved, the service life of the grooving cutter is effectively prolonged, cutting vibration energy can be efficiently absorbed through the combination of the damper and the vibration reduction plate, vibration is converted into multi-directional movement through the sliding rod, the sliding sleeve and the connecting rod mechanism, and intelligent rigidity adjustment of the memory alloy tension spring is matched. Compared with a traditional vibration reduction material, the mechanical vibration reduction structure has the advantages that the problem of consumable abrasion is solved, excellent vibration reduction performance can still be maintained after long-term use, the roughness of a machined surface can be effectively reduced, and the service life of a cutter can be prolonged.

The utility model discloses a tool for connecting a hose and a connector in a matched mode, the tool comprises a base, a hose clamping assembly, a connector clamping assembly and a driving assembly, and the base comprises an assembly axis alpha; the hose clamping assembly is connected to the base in a sliding mode. The connector clamping assembly is rotatably connected to the base; the driving assembly is used for driving the connector clamping assembly so that the connector clamping assembly can be close to or away from the hose clamping assembly while rotating around the assembling axis alpha. The driving assembly can drive the connector clamping assembly to rotate around the assembling axis alpha, and meanwhile the connector clamping assembly gets close to or gets away from the hose clamping assembly in the axis direction, so that the connector synchronously completes axial propelling in the rotating process. The composite motion mode of rotation and linear feeding remarkably shortens the matching time, and is particularly suitable for quick assembly scenes with precision requirements.

The invention relates to a milling machine spindle dynamic balance testing device, which relates to the field of mechanical balance testing, and comprises a magneto-rheological damper array arranged around a spindle, a sensing assembly used for collecting multi-source vibration signals, a double-closed-loop control mechanism and a chuck assembly, the magneto-rheological damper array comprises a plurality of damping units which are evenly distributed in the circumferential direction of the main shaft, an acute included angle is formed between the force application direction of each damping unit and the axis of the main shaft, and the sensing assembly comprises an axial acceleration sensor located on the end face of the main shaft and a plurality of radial acceleration sensors distributed in the axis direction of the main shaft. The double-closed-loop control mechanism comprises an inner ring damping control unit and an outer ring counterweight decision-making unit, and the chuck assembly is matched with the main shaft positioning conical surface. The method and the device have the effects of realizing active suppression of high-frequency vibration and rapid identification of the unbalance amount.

This utility model provides a clamping assembly for testing the peel force of optical fiber coatings. It relates to the field of material adhesion testing technology. The clamping assembly includes a single-column tensile testing machine. A lower clamp and an upper clamp are fixedly mounted on the single-column tensile testing machine. A mounting block is fitted onto the lower clamp. Two support frames are fixedly mounted between the inner walls of both sides of the mounting block, and both support frames are in contact with the lower clamp. Two rectangular blocks are fixedly mounted on one side of the mounting block. A threaded sleeve is rotatably mounted between the two rectangular blocks. Two threaded rods are threaded onto the threaded sleeve. Connecting arms are fixedly mounted at the ends of the two threaded rods that are far apart from each other. Adapter blocks are fixedly mounted on the tops of the two connecting arms. This utility model has the advantages of being able to calibrate the center lines of the lower clamp and the upper clamp, reducing coaxiality errors between them, and being quick and convenient to operate.

The utility model discloses a stainless steel pipe joint laser welding tool which comprises an abutting seat and a fixing seat, an abutting ring slope and a columnar portion are coaxially arranged on the abutting seat, an embedded column is arranged on the fixing seat, and the embedded column coaxially abuts against the inner ring side of a joint seat in an expanding mode. The columnar part penetrates through the pipe body and the connector base to be coaxially inserted into a mounting hole formed in the embedding column, and the abutting ring slope of the abutting base abuts against the slope part so that the abutting base and the fixing base can be axially clamped to the two sides of the pipe body and the two sides of the connector base. According to the tool for laser welding of the stainless steel pipe connector, the abutting base and the fixing base are used for axially pressing and clamping the pipe body and the connector base, and coaxial alignment of the slope portion and the columnar portion of the abutting base and the fixing base is used for improving coaxial stability when the pipe body and the connector base are fixed. And the coaxiality error between the pipe body and the joint seat during welding is reduced.

The application relates to a motor double-layer cooling water channel shell based on additive manufacturing and an immersed cooling system, and belongs to the technical field of motor structures and thermal management. The shell comprises, from outside to inside, an inlet and outlet water jacket, a shunt outer water jacket and a shunt inner water jacket which are coaxially arranged in sequence; the inlet and outlet water jacket comprises two annular cavities as liquid inlet channels and liquid outlet channels; a shunt plate is coaxially arranged at the middle part of the shunt outer water jacket, and the shunt plate divides the inner cavity of the shunt outer water jacket into a shunt liquid inlet channel and a shunt liquid outlet channel; the shunt liquid inlet channel is uniformly provided with a layer of drainage holes which are in communication with the liquid inlet channels in the circumferential direction; the shunt liquid outlet channel is provided with another layer of drainage holes which are in communication with the liquid outlet channels in the circumferential direction; the shunt inner water jacket is provided with a plurality of distribution holes in the circumferential direction, and the circumferentially adjacent distribution holes are respectively in communication with the shunt liquid inlet channel and the shunt liquid outlet channel. The application realizes a spatial cross-flow channel network of "axial double-layer + radial layered", realizes precise cooling, and greatly improves the utilization rate of the cooling medium.

The utility model provides a cold rolling mill for pressing pattern aluminum plate belongs to aluminum plate processing technical field, includes, support subassembly, including shock attenuation base, fixedly connected in the support frame of shock attenuation base top, fixedly connected in the slide rail of shock attenuation base top, the sliding block of slide connection in the inside of slide rail, and the support plate of fixedly connected in support frame side wall, pressing subassembly, including setting first motor in the support plate top, the first service pole of fixedly connected in first motor output shaft end portion, the upper pattern roller of inserting in the first service pole outer wall, and the upper positioning sleeve of setting in first service pole both ends. The utility model has the advantages of: the equipment adaptability is strong, can adapt to different aluminum plate through the adjustment pressing subassembly, the upper pattern roller can replace, satisfies the diversified product demand. The pressing precision is high, and the pattern quality is stable, reduces the machine vibration and the aluminum plate deviation through each component cooperation, improves the pressing precision and the quality.

This utility model discloses a torsion beam bushing pressing machine, including a machine base, a positioning component mounted on the machine base for supporting and positioning the torsion beam, two mounting components symmetrically arranged on the machine base, and an electrical cabinet electrically connected to the mounting components. The mounting components include a base that can be horizontally rotated and adjusted in angle, a pressing seat slidably connected to the upper end of the base, a first drive unit electrically connected to the electrical cabinet for driving the pressing seat to move horizontally reciprocally, a fixing mechanism mounted on the pressing seat for fixing the torsion beam, and a pressing mechanism. The pressing mechanism includes a pressing head corresponding to the position of the fixing mechanism, a second drive unit electrically connected to the electrical cabinet, and a guide mechanism connected to the pressing head. The pressing head can reciprocate in a direction closer to or away from the fixing mechanism under the guidance of the guide mechanism. When the pressing head moves in a direction closer to the fixing mechanism, it can press the bushing onto the torsion beam. The pressing head angle and pressing position are adjustable to make the bushing pressing position more accurate.

This utility model relates to the field of planetary reducer technology, specifically disclosing a fixing frame for processing planetary reducer housings, including: a base, a clamping mechanism on the top surface of the base, a top frame connected to the clamping mechanism via a support rod, and a pressing mechanism between the top frame and a pressing plate; the clamping mechanism drives the clamping plate to move via an adjustable bidirectional lead screw and sprocket chain transmission, and the pressing mechanism presses down on the pressing plate via a displacement bidirectional lead screw. Furthermore, the clamping plate is equipped with a rubber buffer pad, which, together with the auxiliary positioning mechanism's double-headed motor, unidirectional lead screw, and guide structure, achieves multi-directional coordinated fixing and adaptive positioning of the housing. This utility model solves the problems of insufficient positioning constraints and clamping deformation in traditional fixing frames, improves the stability and precision of housing processing, and enhances the applicability to housings of different specifications.