48results about How to "Not prone to wear and tear" patented technology

The invention discloses a high-pressure-resisting movable connection device for a liquid conveying pipeline. The device comprises a whole fixing sleeve, two sealing pads, two sealing pad supports and a spring ball assembly, an axial mounting hole for containing the spring ball assembly is formed in the annular portion of the whole fixing sleeve, the two sealing pad supports are arranged at the upper end and the lower end of the whole fixing sleeve respectively, ball grooves which are formed in the two sealing pad supports and used for being matched with balls are towards the whole fixing sleeve, and the two sealing pads are arranged at the outer ends of the two sealing pad supports respectively. The device drives the upper portion and the lower portion to do relative rotation through moving of the sealing pad supports on the balls, friction motion of sealing pads and the pipeline in the prior art is replaced with rolling motion between the balls and the ball grooves, rotation is stable, the sealing performance is good, abrasion is small, service life is long, and the device is particularly suitable for the high-pressure liquid conveying pipeline and the occasions where the space is limited or the pipeline needs to be flexibly rotated under the special condition.

The invention relates to the field of a machining center box type part jig calibration and aims at providing a box type part jig accuracy calibration device and an accuracy calibration method. The box type part jig accuracy calibration device comprises an accuracy calibration base and an infrared probe system. The accuracy calibration base comprises a bottom plate and a vertical calibration plate, wherein the bottom plate is provided with at least two connecting blocks at the lower end surface, and the vertical calibration plate has one end surface provided with a calibration surface perpendicular to the bottom plate and is connected to the bottom plate at the lower end. The calibration surface is provided with at least a calibration hole penetrating through the other end surface of the vertical calibration plate. The lower end surface of each of the two connecting blocks is provided with a connecting through hole penetrating through the upper end surface of the bottom plate and a positioning hole. The infrared probe system comprises an infrared probe with a knife shank and a data transmission unit and a data receiver electrically connected to a controller of a machining center. The box type part jig accuracy calibration device is small in accuracy calibration errors and free of fouling and abrasion affecting calibration results.

The invention discloses a full-automatic sheet unlimited lengthening machine, which at least comprises a sheet cutting and chamfering mechanism, a sheet unlimited lengthening mechanism and a double-station sheet conveying mechanism; the sheet cutting and chamfering mechanism has the advantages that a notch is flat and smooth, machining precision is high, a large amount of flying dust cannot be generated during a machining process, and the like; the sheet unlimited lengthening mechanism is used for completing splicing between sheets and conveyance after splicing to ensure that spliced parts of the sheets are subjected to a small force during a conveying process, therefore the spliced parts are prevented from being disengaged or staggered; the double-station sheet conveying mechanism is used for completing reclaiming and synchronous conveyance of machining stations to ensure that two machining stations are capable of synchronously obtaining sheets to be machined, so that the requirement of synchronous and continuous machining is met. According to the full-automatic sheet unlimited lengthening machine, all machining procedures from cutting to splicing of the sheets are completed in a full-automatic manner by matching the mechanisms, therefore splicing quality of the sheets is ensured while production efficiency is effectively increased.

The invention provides a surgical instrument and a surgical robot adopting the surgical instrument. The surgical instrument comprises a front end, a wrist part, a foundation base, a guide mechanism and a traction unit, wherein the front end is rotatably connected with the wrist part and a first rotation axis is formed, the wrist part is rotatably connected with the foundation base and a second rotation axis is formed, and the first rotation axis and the second rotation axis are non-coplanar and are vertical to each other; the traction unit comprises a first traction body, a second traction body, a third traction body and a fourth traction body; the four traction bodies surround and are partially fixedly connected with the front end, extend, are restrained by the guide mechanism, and then are connected with an external mechanism; the second traction body surrounds the front end in the direction opposite to that of the first traction body, and the fourth traction body surrounds the front end in the direction opposite to that of the third traction body; the first traction body and the second traction body are distributed on one side of the second rotation axis, and the third traction body and the fourth traction body are distributed on the other side of the second rotation axis.

The invention discloses a battery cover device, comprising a battery cover compartment. The battery cover compartment is provided with: a hook for extending to realize the installation between the battery cover device and the battery case, and a hook for passing the circumferential direction of the battery cover device. The knob is rotated to drive the retraction of the hook, the knob is rotatably arranged on the battery cover compartment, the hook is provided with an inclined surface that is easy to be pushed into the battery case, and the hook and the battery cover compartment are compressed and arranged to make the hook pop out of the battery cover. The first elastic part of the battery cover compartment. The battery cover device provided by the present invention is simple and convenient to install and disassemble, and the process of installing and disassembling does not require multiple rotations, which can avoid the phenomenon of easy wear and tear during use, and can improve the speed of installing and disassembling the device. wear and tear. The invention also discloses a battery installation device, comprising the above-mentioned battery cover device and a battery case, and the battery installation device has the advantages of easy use and long service life.

The invention relates to a coating machine, which comprises a casing, a feeding device arranged in the casing and capable of uniformly transporting medicine granules into the casing, a material bearing device arranged in the casing and receiving the medicinal granules, A spray device for spraying coating dressings, a drying device installed in the cabinet and evaporating the solvent in the coating dressing, the material receiving device includes two receiving plates arranged inside the cabinet, and the two receiving plates are installed in the cabinet and drive the two receiving plates to move relative to each other. And the rotating bearing plate driving mechanism, the feeding device includes a feeding pipe that is slidably connected to the inside of the chassis and can extend into between the two bearing plates, a storage box arranged at one end of the feeding tube away from the bearing plate, and a material storage box. And the box vibration mechanism that makes the storage box vibrate, and the feeding tube moving mechanism that is located inside the chassis and drives the feeding tube to move in the direction of the axis of rotation of the receiving plate, has the medicine particles evenly distributed on the receiving plate, so that the medicine particles can be more uniformly distributed. Coating, the effect of improving the uniformity of product coating.

The invention discloses a compressor, an air conditioner and a water heater. The compressor comprises a shell and a compression device, wherein refrigerant oil is arranged at the bottom of the shell; the compression device is arranged in the shell; the compression device comprises a crankshaft, a main bearing, a secondary bearing and a cylinder; the main bearing and the secondary bearing are arranged at the top and the bottom of the cylinder respectively and used together with the cylinder for defining a compression cavity; the lower end of the crankshaft penetrates through the main bearing and stretches into the compression cavity; a ratio of the eccentricity e of an eccentric part of the crankshaft relative to the central axis of the cylinder to the inner diameter Phi of the cylinder satisfies the following expression: e / Phi is more than or equal to 0.05 and less than or equal to 0.12. According to the compressor, the ratio of the eccentricity e to the inner diameter Phi of the cylinder is set as the following expression: e / Phi is more than or equal to 0.05 and less than or equal to 0.12. The degree of wear-out failure of a sliding sheet and the crankshaft in the compression device when the compressor runs at a high pressure and a high temperature can be reduced; the compressor is hardly worn, so that the service life of the compressor can be effectively prolonged, thus the reliability of the compressor can be improved.