49results about How to "Control lifting speed" patented technology

The invention relates to a process and a device for rapidly growing a sapphire crystal material of a corundum system by virtue of a flame fusion method and belongs to the field of processes and devices for preparing crystals of the corundum system by virtue of the flame fusion method. By improvement on the crystal growth process, the rapid growth method is effectively broken through, the difficulty of not large growth size of the crystal is completely solved, the production efficiency is greatly improved and the production cost is further effectively controlled. Furthermore, at a high temperature of 2050 DEG C, the low-melting-point impurity in gamma-Al2O3 powder is gasified, the high-melting-point impurity is oxidized under an oxidizing atmosphere, the growth process of the crystal is fully realized, the repurification and recrystallization processes of the crystal are completed in fact, therefore, under the new process condition, the purity of alpha-Al2O3 sapphire crystal reaches up to 99.9998% and the requirement of users on the purity of the crystal is fully met. The whole set of device has simple and reasonable structure and design, is scientific and practical and suitable for being popularized in the industry and the crystal growth operation is efficiently performed in high quality manner.

The invention relates to an evaporation coating device which comprises a crucible main body, a side surface heating device and a bottom heating device, wherein the side surface heating device is arranged around the crucible main body, and the bottom heating device is arranged under the crucible main body. The bottom heating device can move up and down in the height direction of the side surface heating device and support the crucible main body to rise to a position which is higher than the side surface heating device. According to the evaporation coating device, by means of the arrangement ofthe heating device on the bottom of the crucible main body, the crucible main body is made to be capable of moving up and down, the maintenance efficiency is improved, the maintenance time is shortened, and unnecessary procedures are reduced.

The invention relates to the field of solid mineral sample preparation, and discloses a feeding device and a control method thereof. The feeding device comprises a sliding rail support, a lifting hopper, a discharging plate, first pulleys, a lifting mechanism and discharging sliding rails. The lifting hopper is connected with lifting sliding rails of the sliding rail support in an abutting mode and is slidably connected with the lifting sliding rails of the sliding rail support, and an accommodating cavity penetrating the upper and lower ends of the lifting hopper is formed in the lifting hopper. The discharging plate is in pivot joint with the lifting hopper. The first pulleys are installed on the discharging plate and is rotatably connected with the discharging plate, the first pulleys are connected with the lifting sliding rails in an abutting mode and are slidably connected with the lifting sliding rails, and when the first pulleys are connected with the lifting sliding rails in anabutting mode, the discharging plate can seal the bottom of the accommodating cavity. The lifting mechanism is connected with the lifting hopper and used for driving the lifting hopper to slide alongthe lifting sliding rails. The discharging sliding rails are arranged horizontally, one ends of the discharging sliding rails are connected with the lifting sliding rails, and the first pulleys are slidably connected with the discharging sliding rails and can slide to the discharging sliding rails to be connected with the discharging sliding rails in an abutting mode. When the first pulleys slideto the discharging sliding rails, the lifting hopper is continued to be lifted, the discharging plate is rotated relative to the lifting hopper, the bottom end of the accommodating cavity is opened,discharging can be realized, and the lifting hopper is not needed to be turned over.

The invention belongs to the technical field of detection devices and particularly relates to a depth detection device for water conservancy and hydropower. The device comprises a main body, wherein supporting blocks for supporting a roller are arranged at an upper end of the main body, the supporting blocks are connected through rotating shafts, and the rotating shafts of the supporting blocks are sleeved with the roller for sleeving a rope; connecting blocks for limiting and sliding the T-shaped sliding rod are arranged at two ends of the supporting block, the roller is connected with a speed regulating box through a rope, a motor is arranged at the speed regulating box and drives a rack mechanism to rotate through a main shaft, and the rack mechanism drives a first transmission gear mechanism to rotate through a second transmission gear mechanism; the first transmission gear mechanism drives the third gear mechanism to rotate through a connecting shaft, and the rotating speed of the third gear mechanism is controlled through the motor, so the lifting speed of the rope is controlled, stress difference caused by uneven speed is reduced, conversion of the extending distance of the rope is effectively improved, and detection precision is improved.

The invention discloses an efficient hot dipping device. The efficient hot dipping device comprises a hot dipping furnace and a crucible. A jacket is arranged on the outer wall of the hot dipping furnace and provides with an upper jacket layer and a lower jacket layer. An air cavity is formed in the upper jacket layer. An air blowing nozzle is formed in the top of the hot dipping furnace. A heating coil pipe is arranged in the lower jacket layer. A stand column is arranged on one side of the hot dipping furnace. A lifting lead screw is installed on the stand column. Two guide rails are installed on the two sides of the lifting lead screw. A horizontal sliding rod is installed on the lifting lead screw. Sliding blocks are arranged on the two sides of the horizontal sliding rod. A plated part hanging device is arranged on the horizontal sliding rod. A plated part stretching into the hot dipping furnace can be hung on the plated part hanging device. By the adoption of the structure, the uniformity of a plating layer and the stability of structures are improved, fast cooling can be conducted on the plated part which is subjected to hot dipping and cooled with air, thus, the hot dipping effect is further guaranteed, the problem that a plating layer is non-uniform is completely solved, and the quality of the plating layer is improved.

The invention discloses an efficient hot dipping device. The efficient hot dipping device comprises a hot dipping furnace and a crucible. A jacket is arranged on the outer wall of the hot dipping furnace and provides with an upper jacket layer and a lower jacket layer. An air cavity is formed in the upper jacket layer. An air blowing nozzle is formed in the top of the hot dipping furnace. A heating coil pipe is arranged in the lower jacket layer. A stand column is arranged on one side of the hot dipping furnace. A lifting lead screw is installed on the stand column. Two guide rails are installed on the two sides of the lifting lead screw. A horizontal sliding rod is installed on the lifting lead screw. Sliding blocks are arranged on the two sides of the horizontal sliding rod. A plated part hanging device is arranged on the horizontal sliding rod. A plated part stretching into the hot dipping furnace can be hung on the plated part hanging device. By the adoption of the structure, the uniformity of a plating layer and the stability of structures are improved, fast cooling can be conducted on the plated part which is subjected to hot dipping and cooled with air, thus, the hot dipping effect is further guaranteed, the problem that a plating layer is non-uniform is completely solved, and the quality of the plating layer is improved.

The invention relates to an intelligent anti-collision guardrail structure. The intelligent anti-collision guardrail structure consists of a power system, an anti-collision system, a car preventing system, a violation and evidence obtaining system, an intelligent system, an alarming and reminding display system and a control system. The power system consists of a solar cell panel, a storage battery, a motor, a speed changing box, a hydraulic motor and a hydraulic pump. The anti-collision system consists of a lifting subsystem, a flexible protection subsystem, a semi-rigidity protection subsystem, a rigidity protection subsystem, an air cushion protection subsystem and a magnetic protection subsystem. The violation and evidence obtaining system consists of a camera, a video camera, a radar tachymeter, a wifi device, a GPS device and a data rod. The intelligent anti-collision guardrail structure has the advantages of being high in intellectualization, capable of adjusting a collision angle, high in construction speed, convenient to maintain and long in service life.

The invention discloses a concrete telescopic conduit based on wireless remote control type dry operation. The concrete telescopic conduit comprises a micro winch, a control device and conduits sequentially connected from top to bottom in multistage and sleeving mode. Diameters of the sleeved conduits increase from top to bottom. A fixing ring connected with a concrete pump truck by a pump pipe isarranged at the top of the first stage conduit at the top. A limiting device used for preventing the conduits from relatively sliding off is arranged between each stage of the conduit and the next stage of the conduit. The conduits are stacked in a sleeving mode retractably, and can naturally drop and extend under action of gravity. The micro winch is fixed to the first stage of the conduit at the top. The micro winch is connected with the conduit at the bottom by a lifting rope. The control device comprises a receiver electrically connected with the micro winch and a remote controller arranged at the ground. The conduits require no assembling and disassembling, can automatically retract and move with movement of the pump pipe. Pouring efficiency of the concrete pump truck can be greatlyimproved, and the construction cost can be lowered.

The invention discloses an automatic feeding and unloading equipment for a veneer hot press, which comprises a board loading and unloading lifting assembly and a conveying mechanism (4). The board loading and unloading lifting assembly includes a lifting mechanism (1). ), a jacking mechanism (7), a pushing mechanism (8) and several receiving mechanisms (2). The present invention has the advantages of high work efficiency, reduced energy consumption, manpower saving, high conveying precision, and the hot pressing machine can hot press both sides at the same time.

The invention discloses an auxiliary training device capable of preventing ligament strain. The auxiliary training device comprises a bottom board and a support frame, wherein a guide rod is embeddedin each accommodating groove, a sliding sleeve rod, a spring and a limiting baffle plate sleeve the surface of the outer end of each guide rod, a support plate is fixedly connected to the top end of the surface of each sliding sleeve rod, sliding wheels are mounted on two sides of the surface of the bottom end of each support plate, the lower half parts of central shafts of the sliding wheels areembedded in sliding chutes, a drive box is mounted at the bottom end of the inside of the support frame, a motor and a frequency converter are mounted inside the drive box, one end of a lifting rope bypasses a first winding post and a second winding post and is connected with a constraint waistcoat, and holding rods are mounted on two sides of the surface of one side, close to the bottom board, ofthe support frame. For the auxiliary training device, training can be carried out and completed by one person, meanwhile, the training intensity can be freely adjusted according to self practical conditions, moreover, the body is protected during the training races, and thus the condition of ligament strain is avoided.

The invention discloses conveying equipment for a to-be-machined laminated board. The conveying equipment comprises a jacking mechanism (1), a conveying mechanism (2) and a conveying mechanism supporting frame (3). The conveying mechanism supporting frame (3) is fixed to the ground; the jacking mechanism (1) is arranged in front of the conveying mechanism (2); the jacking mechanism (1) comprises a jacking mechanism framework (16); a supporting cushion plate (18) is arranged on the upper portion of the jacking mechanism framework (16); a lifting table (12) is arranged on the supporting cushion plate (18); a lifting table driving piece (13) is arranged in the middle of the supporting cushion plate (18); the lifting table driving piece (13) drives the lifting table (12) to move up and down; and a plurality of material jacking supports (11) are uniformly arranged on the lifting table (12) at intervals. The conveying equipment has the advantages that the working efficiency is high, energy consumption is reduced, manpower is saved, conveying precision is high, and the product qualification rate can be increased.

The invention discloses a volleyball training device, which mainly relates to the field of sports equipment. It includes a support frame, a ball storage device is arranged on the support frame, a ball pushing device is arranged under the ball storage device, a lifting device is arranged at one end of the ball pushing device, and a ball serving device is arranged on the top of the lifting device. The beneficial effect of the present invention lies in that it can replace auxiliary players to perform simulated spiking, and can improve training efficiency.

The invention particularly provides an intelligent blowing flag raising and lowering device. The intelligent blowing flag raising and lowering device comprises a flagpole, a flag surface fixing plate, a raising and lowering mechanism and a blowing mechanism. The flagpole is of a hollow structure; the flag surface fixing plate is connected to the flagpole in a sliding manner through the raising and lowering mechanism; and the blowing mechanism is arranged on the lower portion of the flagpole. A plurality of air doors which are symmetrically and longitudinally arranged at equal intervals are arranged on the flagpole and are placed on the side where the flagpole is in contact with the flag surface fixing plate; each air door is composed of a door frame and a hinge air door body; the hinge air door bodies are movably connected to the door frames; multiple opening air doors are arranged on the two sides of the flag surface fixing plate, and the distance between every two adjacent opening air doors is consistent with the distance between every two adjacent air doors; and an air door jacking ring is fixed to one side, close to each flagpole air door, of the corresponding opening air door. According to the intelligent blowing flag raising and lowering device, through artificial wind generation, in the raising and lowering process of the flag surface, or after the flag surface is fixed, the flag surface can constantly keep in the slowly-waving state even if the flag surface is in the state without natural wind. Meanwhile, a flag does not need to be manually pulled up, and the intelligent blowing flag raising and lowering device can intelligently control the raising and lowering speed of the flag and control whether the flag is constantly waved or not.

The invention discloses a wood board loading and unloading lifting assembly which comprises a lifting mechanism (1), a jacking mechanism (7), a push mechanism (4) and a plurality of bearing and connecting mechanisms (2). The wood board loading and unloading lifting assembly has the advantages that working efficiency is high, energy consumption is reduced, manpower is saved, conveying precision is high, and a hot press can conduct hot pressing on the two faces simultaneously.

The invention discloses an automatic lifting device for a manual-transmission vehicle starting clutch pedal. The automatic lifting device comprises a roll train, a gear train and a low-speed direct-current motor, the roll train is composed of a pair of a roll and an eccentric roll which are in transmission connection through a flexible steel wire rope, and the gear train is arranged on a gear stand and composed of a driving incomplete gear and a driven incomplete gear which are mutually meshed; the roll is connected with a central shaft of the clutch pedal through a solid shaft, the driving incomplete gear is connected with an output shaft of the low-speed direct-current motor, and the eccentric roll and the driven incomplete gear are coaxially arranged on a gear fixing support. The automatic lifting device which is high in stability, simple to operate and convenient to use has the advantages that lifting-up speed of the clutch pedal can be effectively controlled, the embarrassing situation that starting flameout happens when a greenhand is on the road can be avoided, safety in starting a vehicle is improved, and clutch friction plate abrasion caused by unreasonable starting can be reduced.

The invention provides a shock excitation beam protection device and a resonance crusher, and relates to the field of cement pavement crushing equipment, the shock excitation beam protection device comprises a position sensor arranged on a lifting hydraulic cylinder, and the position sensor is used for detecting the extension length of the lifting hydraulic cylinder; the device also includes a pressure sensor that is arranged at the hinged position of the balance weight beam and the lifting hydraulic cylinder or at one of the hinged positions of the balance weight rod and the balance weight beam as well as the exciting beam and is used for detecting whether the exciting beam is in a suspended state or not. The stroke position of the lifting hydraulic cylinder is detected and the pressure sensor is arranged in a matched mode to guarantee that a hammer head of the shock excitation beam makes reliable contact with the ground, and damage caused by empty vibration of the shock excitation beam is avoided.