8results about How to "Avoid tremors" patented technology

This invention relates to the field of vapor phase etching (VPE) apparatus technology, specifically a double-sided VPE apparatus for semiconductor silicon wafers. The apparatus includes a VPE apparatus body, a silicon wafer transfer mechanism at the upper end of the apparatus body, an etching chamber fixedly mounted on the outer side of the apparatus body, and a mounting base fixedly mounted on the upper end of the etching chamber. By combining the VPE mechanism with a central air-guiding mechanism, stable adsorption of the semiconductor silicon wafer is ensured during the etching process, avoiding vibration and improving etching efficiency and precision. A Bernoulli-style chuck structure is formed by the cooperation of the air-guiding support stage and the central stage, stably "fixing" the silicon wafer above the air-guiding support stage, minimizing contact with the semiconductor silicon wafer, avoiding physical damage and contamination, and simultaneously enabling multi-directional airflow distribution to meet auxiliary heat dissipation needs for the semiconductor silicon wafer, further improving the accuracy and etching efficiency of the VPE process.

The application discloses a kind of wire tin-coating quick cooling mechanism, including fixedly arranged on base frame and air-cooled track, the upper end of frame is provided with traction assembly, wire is after being coated with tin in base and is connected with traction assembly again after passing air-cooled track upward, further include: flap, which is hinged with air-cooled track, for controlling the opening and closing of the side of air-cooled track;Isolation component is isolated and arranged in air-cooled track, and a plurality of air holes for communicating outside air with positioning channel are symmetrically arranged on the side wall thereof for wire to pass through.The application can close the open side of air-cooled track when air-cooled track is working, and under the cooperation of first blowing assembly and second blowing assembly, the airflow in air-cooled track blows from middle to up and down sides, so that the wire is balanced, in addition, the airflow opposite to the upper and lower ends can pull the wire tight to the two ends, to avoid wire relaxation.

The utility model discloses a kind of infinitely variable gearbox body combination tooling fixtures, including basic support module, one sequence blank positioning and clamping module and two sequence semi-finished product positioning and clamping module, one sequence blank positioning and clamping module is used to position and clamping to one sequence box body blank, two sequence semi-finished product positioning and clamping module is used to position and clamping to semi-finished product box body after completing one sequence processing, basic support module simultaneously carries one sequence blank positioning and clamping module and two sequence semi-finished product positioning and clamping module;One sequence blank positioning and clamping module is composed of adjustable support column, three groups of pressing plate, lateral jackscrew, anti-vibration clamp plate, mistake-preventing limiting column and positioning pin, complete rough machining;Two sequence semi-finished product positioning and clamping module utilizes the support seat of eight with M8 thread hole of top plate even distribution, semi-finished product flange edge is compressed by M8 bolt, continue finish machining.The combination tooling fixture of the utility model, two sequence processing can be continuously completed in one clamping of same fixture, reference is unified, production efficiency is greatly improved.

The present application relates to the technical fields of tank truck filling, and discloses a liquid chlorine tank truck filling device, which comprises a supporting column, the outer wall of the supporting column is provided with a plurality of conveying pipes, the outer wall of each conveying pipe is fixedly connected with a flange plate, the side of each conveying pipe away from the flange plate is rotatably connected with a rotary joint, and the outer wall of each conveying pipe is fixedly connected with a balancer, when the second fixing disc suddenly rotates, the limiting rod moves to the right side under the influence of centrifugal force, the limiting rod is in contact with the side wall of the second limiting groove, so that relative stillness is generated between the first fixing disc and the rotary joint, the rotation of the conveying pipe at the inner wall of the rotary joint is limited, the problem that if the balancer matched with the crane pipe suddenly fails when the crane pipe is connected with the tank truck and enters the medium conveying operation stage, the conveying pipe body rotates uncontrollably at the rotary joint under the influence of the relatively large dead weight of the crane pipe body, and the structural damage of the filling joint and safety accidents are caused is effectively prevented.

The utility model relates to the technical field of circuit board production, and particularly discloses a circuit board milling groove clamping device which comprises a supporting box body, two limiting columns are fixedly connected to the interior of the supporting box body, two sliding rings are slidably connected to the outer portions of the limiting columns, and a connecting plate is fixedly connected to the outer portions of the two sliding rings. A mounting plate is fixedly connected to the close sides of the two connecting plates, two limiting plates are slidably connected into the mounting plate, a sliding groove is formed in the mounting plate, fixing plates are fixedly connected to the exteriors of the limiting plates, a sliding groove is formed in the top of each fixing plate, fixing columns are fixedly connected to the exteriors of the connecting plates, and driving assemblies are fixedly connected to the close sides of the two fixing columns. When the clamp is used, the motor of the driving assembly is started to drive the two-way threaded rod, so that the internal threaded blocks move oppositely, the fixed plate is pulled to shorten the distance for adaptation, time and energy consumption of frequent disassembly and reassembly of the clamp by operators are reduced, cost and clamp abrasion are reduced, and production efficiency is improved.

The invention relates to the technical field of boiler waste gas treatment, in particular to a biomass boiler low-temperature catalytic absorption method desulfurization and denitrification device which comprises a liquid injection unit, a reaction unit and a proportioning unit which are sequentially distributed from left to right, and the reaction unit comprises a reduction tower body and a reactor fixedly communicated with the outer wall of the reduction tower body; a feeding pipe communicated with the proportioning unit is fixed on the outer wall of the reactor, and an exhaust funnel is fixed on the top side of the reduction tower body; a supporting assembly and a treatment device are arranged outside the reactor. According to the desulfurization and denitrification device adopting the low-temperature catalytic absorption method for the biomass boiler, outward expansion is achieved through the centrifugal effect, the vibration assembly is driven to clean ash of the reactor, meanwhile, the positioning block abuts against the inner wall of the guide frame, locking of the machine shell is achieved, the working efficiency and stability of the device are greatly improved, extra vibration is reduced, and the service life of the device is prolonged. The stability of the treatment device in the ash removal process is guaranteed, and the situation that the ash removal effect is affected by position deviation caused by vibration is avoided.

The utility model provides a kind of motor brake device, it is related to motor brake technical field, the utility model provides the motor brake device including brake assembly and motor assembly, brake assembly includes brake disc, base and the first brake pad of being installed on base, motor assembly includes end cover and the power output shaft of being rotationally cooperated with end cover, end cover and base adopt integrated structure, power output shaft is fixedly connected with brake disc.The utility model provides the motor brake device has reduced production cost and weight, improves brake system overall strength, enhances mechanical stability, satisfies high-strength brake demand and the like advantages.

The utility model discloses a broken bridge heat insulation aluminum alloy window with a noise reduction structure, which relates to the technical field of aluminum alloy windows and comprises a window frame and a noise reduction component. A window body is hinged to one end of the front side face of the window frame, a handle is installed on the front side face of the window body, a noise reduction assembly is installed in the window body, and a sealing unit is arranged in the window frame; the noise reduction assembly comprises low-radiation glass, a glue injection layer, tempered glass, an anti-explosion film and a protective film, the low-radiation glass and the tempered glass are both fixed in the window body, the glue injection layer is filled between the low-radiation glass and the tempered glass, and the anti-explosion film is bonded to the inner side face of the tempered glass. The multi-layer composite structure can effectively absorb noise of different frequency bands, the glue injection layer inhibits low-frequency resonance, the explosion-proof film enhances high-frequency reflection, and the micropore sound absorption layer improves low and medium frequency sound insulation performance, so that good sound insulation and noise reduction effects are achieved.