116results about How to "Avoid tremors" patented technology

The invention relates to a dental orthodontic archwire bending robot. The robot mainly comprises a pedestal, an orthodontic archwire feeding mechanism, an orthodontic archwire rotation mechanism, an orthodontic archwire clamping and supporting mechanism and an orthodontic archwire bending module, wherein the orthodontic archwire feeding mechanism is fixed on the pedestal, and an orthodontic archwire rotating motor is connected with the orthodontic archwire feeding mechanism through an L-shaped support frame of the orthodontic archwire rotating motor, so that rotation and feeding of an orthodontic archwire can be realized; the orthodontic archwire clamping and supporting mechanism consists of an orthodontic archwire clamping mechanism and a supporting mechanism, and is used for avoiding vibrating in an orthodontic archwire bending process; the orthodontic archwire bending module consists of an orthodontic archwire bending module position adjustment mechanism, a synchronous cog belt transmission mechanism and an orthodontic archwire bending module, and the spatial three-dimensional bending of the orthodontic archwire can be realized under cooperation of the orthodontic archwire feeding mechanism and the orthodontic archwire rotation mechanism. The dental orthodontic archwire bending robot has a simple structure, quantified bending of hyperelastic orthodontic archwires can be realized, and the bending efficiency and accuracy of orthodontic archwires can be improved.

The invention relates to the technical field of heat dissipation systems. A liquid cooling heat dissipation module comprises a heat dissipation module comprises a power pump and a pressure regulatingmodule, the power pump provides power for the heat dissipation loop; the pressure regulating module and the power pump are connected in a heat dissipation loop in series. During work, at the same moment, the sum of the pump cavity volume variation caused by the power pump and the pressure regulating cavity volume variation of the pressure regulating module approaches zero, so that the pressure inthe pipeline is in a balanced state, the problem of sudden stop of working medium circulation caused by clamping stagnation of a single power pump is solved, and meanwhile flow channel tremor is avoided. Meanwhile, due to the fact that a liquid storage tank is omitted, the problems that a traditional liquid cooling heat dissipation module is large in size and not high in integration degree are effectively solved, the size of a heat dissipation system is smaller, and miniaturization of products is facilitated.

The invention relates to a vibration damping tool for machining thin-wall cylindrical workpieces. The vibration damping tool for machining the thin-wall cylindrical workpieces comprises a tool base, wherein the tool base is provided with an inner supporting device, and the inner supporting device comprises workpiece inner wall support pieces, a support piece top pushing block and a pushing block drive unit; at least three or more workpiece inner wall support pieces are uniformly arranged around the axis of the tool base and movably arranged on the tool base along the radial direction of the tool base; the support piece top pushing block is arranged in a middle space enclosed by each workpiece inner wall support piece and matched with each workpiece inner wall support piece in a wedge surface mode; the pushing block drive unit is connected between the tool base and the support piece top pushing block, and used for the support piece top pushing block to move up and down so as to achievesynchronous movement of each workpiece inner wall support piece along the radial direction of the base through the wedge surface. Compared with a scheme that hydraulic cylinders are arrayed along thecircumferential direction of cylindrical workpieces to support the cylindrical workpieces, the vibration damping tool for machining the thin-wall cylindrical workpieces has the advantages of being simple in structure and low in cost.

The invention discloses a single-acting piston type buffering hydraulic oil cylinder comprising a cylinder body, a piston and a plunger rod, wherein the lower part of the cylinder body is a cylinder bottom; an oil cavity is arranged between the cylinder bottom and a piston; an oil port is communicated from the cylinder bottom and communicated with the oil cavity; the center of the cylinder bottom is provided with a hollow plunger extending into the oil cavity in a one-piece way; the bottom of the piston is provided with a blind hole permitting to be inserted by the plunger; a plunger body is provided with a plurality of radial holes; and the radial holes are communicated with the oil cavity and the oil port. The single-acting piston type buffering hydraulic oil cylinder prevents a piston body from impacting the cylinder bottom, also prevents tremble caused by a second-level movable door frame and a first-level fixed door frame due to intense impact, and ensures the strength and the stable work of a hydraulic oil cylinder and a whole hydraulic system of a fork lift.

The invention discloses rail maintenance equipment based on a suspension type magnetic levitation rail transit system. The system mainly comprises a suspended crane module, a track dust removal module, a video monitoring module, a vehicle-mounted communication module, a track sampling detection module and a vehicle-mounted operation control module. The six modules are matched with one another andoperate cooperatively to support the rail maintenance equipment on a suspension type track beam, foreign matters such as dust and magnetic scraps on a magnetic suspension track are cleaned through mechanical rubber wheels or brushes, the foreign matters and the track state are sampled and detected at the same time, and track anomaly detection data are diagnosed.

The invention discloses an automatic-focusing high-precision large-stroke precision positioning workbench. The automatic-focusing high-precision large-stroke precision positioning workbench comprises a motor, a high-precision ball screw, a high-precision ball screw lower support, a supporting rod, piezoelectric ceramic, a triangular laser emission device, a high-precision ball screw nut, a high-precision ball screw upper support and a platen. Compared with the prior art, the double control scheme is adopted for the automatic-focusing high-precision large-stroke precision positioning workbench in the aspect of an overall mechanical structure, the automatic-focusing high-precision large-stroke precision positioning workbench can have low cost while meeting the requirement for high precision, and meanwhile vibration produced by the direct current motor during driving is avoided. An automatic positioning system used in the automatic-focusing high-precision large-stroke precision positioning workbench is more stable than the prior art, contrast calculation carried out by a computer is not needed, and particularly, the automatic-focusing high-precision large-stroke precision positioning workbench is simple in structure, low in cost, high in rigidity, high in reliability and convenient to use, and has popularization value.

The invention relates to a composition for improving symptoms of a cerebrovascular disease. The composition is composed of Ligusticum wallichii, rhizoma Gastrodiae and nervonic acid, and has advantages of synergistic and complementary pharmacological effects, high content of active ingredients, quick taking-effect, controllable quality, small taking dose and definite therapeutic effect. The composition can be prepared into various healthcare product dosage forms suitable for clinical application.

The invention relates to an external column type voltage limiter for an urban rail catenary. The external column type voltage limiter comprises a cross arm of a tower and further comprises a lightning arrester body and a post insulator. A spherical electrode is installed on the lightning arrester body, the lightning arrester body is connected with the post insulator through a conductive metal bar, a run-on plate is further installed between the tower cross arm and the post insulator and is in tight electric connection with the tower cross arm, the lightning arrester body is in tight electric connection with a fitting positioned on the post insulator, and an air gap is formed between the run-on plate and the spherical electrode. The external column type voltage limiter can be installed away from the insulator and provide multiple protections for the insulator and is suitable for being used on an urban rail catenary system.

The invention belongs to a javelin grinding machine tool which comprises a tool body, a rotating shaft, an abutting mechanism and a grinding mechanism. The rotating shaft is arranged at one end of the tool body, the abutting mechanism is arranged at one end of the tool body and corresponds to the rotating shaft, the grinding mechanism is arranged on the tool body through a sliding rail and positioned between the rotating shaft and the abutting mechanism, a locking mechanism is arranged between the abutting mechanism and the tool body, and an adjusting screw pushing the grinding mechanism to be in reciprocating motion is arranged between the grinding mechanism and the tool body. Two ends of a javelin blank are supported, the javelin blank is rotated by the rotating shaft, and at the same time, an abrasive belt machine matched with an abutting wheel grinds a javelin; radian of the surface which is ground is controlled jointly by an auxiliary adjusting screw and the adjusting screw, so that grinding of the surface of the javelin blank can be completed accurately, quickly and efficiently to meet standards, mechanization level is high, and the grinding process of the javelin blank can be completed quickly, efficiently and accurately; the whole javelin grinding machine tool automatically controls a running track of the abrasive belt machine in the whole process through a control system, and strict standardization can be realized.

The invention discloses a car trunk assembly, which comprises an outer plate and an inner plate with a gel groove, and is characterized in that: a left lower sunken table, a left upper sunken table, a right upper sunken table and a right lower sunken are arranged in a registration mark plate mounting region at the lower part of the outer plate, and a left flanging and a right flanging which are in a square shape and eudipleural are arranged on the inner plate corresponding to the registration mark plate mounting region; the gel groove at the upper part of the inner plate is injected with swelling gel, and the outer plate and the inner plate are overlapped and are connected together through the swelling gel; the left flanging at the lower part of the inner plate and the left upper sunken table and the left lower sunken table at the lower part of the outer plate are welded together, and the right flanging at the lower part of the inner plate and the right upper sunken table and the right lower sunken table at the lower part of the outer plate are welded together; and the outer plate is connected with the inner plate through a buckling wrapping edge. The invention has the following advantages: the inner plate and the outer plate of the trunk are more firmly connected into a whole, thereby increasing the stiffness and strength of the trunk assembly, and being favorable for preventing the trunk assembly from shaking.

The invention discloses a novel single-blade wheel type power generation device for an electricity company. The novel single-blade wheel type power generation device for the electricity company comprises a bracket, wherein supporting legs are mounted on the inner wall of the bracket; the outer walls of the supporting legs are connected to the inner walls of the bracket; pull rods are mounted between the inner walls of the bracket; the outer walls of the pull rods are connected to the inner walls of the bracket; a filter drum is mounted between the inner walls of the bracket; the outer wall ofthe filter drum is connected to the inner walls of the bracket; a rotary shaft is mounted on the inner wall of the filter drum; the outer wall of the rotary shaft is movably connected to the inner wall of the filter drum; and a rack is mounted on the outer wall of the left side of the bracket. According to the novel single-blade wheel type power generation device for the electricity company disclosed by the invention, by matching the bracket, the supporting legs and the rack, the product quality of the novel single-blade wheel type power generation device for the electricity company is improved, the procurement cost of a user is reduced, and waste of resources of the novel single-blade wheel type power generation device for the electricity company is avoided, and the novel single-blade wheel type power generation device for the electricity company is suitable for being popularized and used.