32results about How to "Reduce displacement distance" patented technology

The invention relates to an agricultural piston bale press. This press includes a pressing piston arranged in a bale chamber, an intake device to take in crop material, and a stuffing device, wherein the stuffing device includes a feed passage and a stuffing mechanism, the stuffing mechanism includes an arm supporting tines, wherein said arm is movable by a first driving device to at least move the tines in and out of the feed passage and wherein said arm is pivotably supported by a fulcrum, the fulcrum being displaceable to selectively move the arm along the stuffing trajectory or load trajectory. The stuffing device includes a second driving device to displace the fulcrum, and in that the second driving device is mechanically independent of the main driving mechanism.

The invention relates to a method and device for emergency braking of an elevator. The method comprises the steps of: receiving an emergency braking command, acquiring the current speed of the elevator and comparing the current speed with a predetermined speed value; if the current speed is greater than or equal to the predetermined speed value, controlling switch elements in an inverter to switch on/off, respectively, wherein any two phases in three phase outputs of the inverter are short-circuited; and if the current speed is smaller than the predetermined speed value, controlling switch elements in an inverter to switch on/off, respectively, wherein three phase outputs of the inverter are short-circuited; the three phase outputs of the inverter correspond to three phase inputs of a motor, respectively. According to the method and device provided by the invention, free operation of a car during emergency braking of the elevator can be eliminated, so that the safety of the elevator is improved.

An optical disk player, which comprises: a shell, a plummer fixed in the shell, an optical disk transport mechanism, a guiding mechanism, an optical disk loading final position detection mechanism, and a control part; the shell is 80-90 millimeters wide at the optical disk insertion direction; the detection parts of the guiding mechanism are located between the plummer and the delivery roll of the transport mechanism; the optical disk loading final position detection mechanism comprises a support part and a trigger bar; one end of the support part is rotatablely fixed to the upper base plate near the detection part of one detection bar, and its middle is provided with an assorted part interacting with the detection bar; the middle of the trigger bar is rotatablely fixed to the free end of the support part, of which one end is provided with a contact part for contacting the periphery of an optical disk, and the other end is connected to the control part. When an optical disk is at the playing position, a part of the optical disk will be exposed out of the shell of the optical disk player, so, when the optical disk is played, the status of the optical disk in the optical disk player can be intuitively seen from the outside.

The invention relates to a clamping tool for crankshaft repairing and an application method thereof. The clamping tool for crankshaft repairing comprises a workbench, wherein a length adjusting mechanism is arranged in the workbench; a welding moving mechanism is arranged at the end, close to the length adjusting mechanism, of the workbench; clamping mechanisms are arranged at one end of the top of the length adjusting mechanism; a scraping mechanism is arranged between the clamping mechanisms; a waste discharging mechanism is arranged at the top of the workbench; a damping mechanism is arranged at the bottom of the workbench; and the length adjusting mechanism comprises a movable supporting plate. The clamping tool for crankshaft repairing provided by the invention achieves the beneficial effects that hydraulic rods are used for driving top plates to move, so that rapid clamping of the device is facilitated; a first motor is used for driving two bidirectional threaded rods to rotate, so that crankshafts with different sizes can be conveniently clamped and fixed; a moving block is driven by a handle to move to a proper position, so that redundant residues on the crankshaft are conveniently scraped by a scraper, and influence on use of the device is prevented; a vibration motor drives an inclined plate to vibrate, so that waste is conveniently discharged; and screw rods rotate to extrude and penetrate through springs, so that the displacement distances of movable rods are reduced, and damping is facilitated.

The invention relates to a device for gas and/or vacuum distribution (1) for a sheet processing machine (100). The device for gas and/or vacuum distribution (1) comprises: at least one controllable pilot valve (4; 40), a fixed body (5) comprising: at least one main gas inlet (7) intended to be connected to a gas or vacuum source, at least one main gas outlet (8) intended to be connected to at least one suction cup and/or to at least one nozzle, at least a first and a second control gas openings (10, 11), at least one control gas opening (10, 11) being connected to the controllable pilot valve(4; 40), at least one housing (9) comprising a first chamber (9a) communicating with said main gas inlet (7) and outlet (8) and a second chamber (9b) communicating with the first and second control gas openings (10, 11), at least one mobile piston (6) axially movable in the housing (9) by the action of a control gas or vacuum supplied in the second chamber (9b) through the at least one control gasopening (10, 11) connected to the controllable pilot valve (4; 40), the mobile piston (6) being movable between : a closed position in which the mobile piston (6) blocks a gas path (16) between saidmain gas inlet (7) and outlet (8) in the first chamber (9a), and -an open position in which the mobile piston (6) releases the gas path (16), first and second chambers (9a, 9b) being isolated from each other by cooperation of shapes between the mobile piston (6) and the housing (9) without frictional seal between the mobile piston (6) and the housing (9). The invention also relates to a suction unit and a feeder comprising such a device for gas and/or vacuum distribution. The invention further relates to a sheet processing machine comprising such feeder or such a device for gas and/or vacuum distribution.

The invention discloses a fracturing and imbibition method for a low-permeability oil reservoir, and belongs to the technical field of oil reservoir development. The method comprises the following steps: preparing a first liquid amount of dry layer energizing fluid, a second liquid amount of gel fracturing fluid with a first sand content, and a foaming type imbibition agent with a target concentration, and injecting the dry layer energizing fluid into an adjacent dry layer of a target oil layer under the condition that the injection pressure of the target oil layer is greater than the fracture pressure of the target oil layer, and gel fracturing fluid and a foaming type imbibition agent are sequentially injected into the target oil layer. According to the technical scheme provided by the embodiment of the invention, the dry layer energizing fluid is adopted, the bottom layer energy of the target oil layer is increased, the gel fracturing fluid is adopted, the underground flowing environment of crude oil can be improved, the flow conductivity is improved, the foaming type imbibition agent is adopted, and the foaming type imbibition agent can be converted into a foam state from a liquid state under the crude oil shearing condition, so that the foaming type imbibition agent can be converted into the foam state from the liquid state. The displacement distance of crude oil can be reduced, the backflow difficulty of the crude oil is reduced, and the purpose of improving the recovery efficiency is achieved.

The invention discloses a high-strength aluminum film. The high-strength aluminum film comprises a first fixing layer, a second fixing layer, two bonding layers and a surface layer, wherein the top ofthe first fixing layer and the top of the second fixing layer are both fixedly connected with the surface layer, and the two bonding layers are fixedly installed at the bottom of the first fixing layer and the bottom of the second fixing layer correspondingly; a movable groove is formed in one side of the first fixing layer, a fixed base is slidably connected in the movable groove, and one side of the fixing base extends to the outer side of the first fixing layer and is fixedly connected with one side of the second fixing layer; and a connecting groove is formed in the top of the fixing base, a gear is rotationally connected to the inner wall of the top of the moving groove, and the gear is located in the connecting groove. According to the film, the operation is simple, when an aluminumfilm body is subjected to tensile force, under the actions of an extension spring, a torsion spring and a supporting spring, and the displacement distance between the first fixing layer and the second fixing layer is greatly reduced so that the surface layer can be effectively prevented from being damaged.

The invention relates to the technical field of textile machinery, and provides a constant-tension yarn feeder. The constant-tension yarn feeder comprises a single-chip microcomputer control circuit,a rotary encoder, a first magnet, a motor for feeding super yarn, a motor drive control circuit, a display screen, a tension setting circuit, a power supply circuit and a yarn tension detection device, the yarn tension detection device comprises a base, a lever arranged on the base, a second magnet, a spring and a Hall sensor, the Hall sensor detects yarn tension compression pressure of yarn feeding in real time and sends the yarn tension compression pressure to the single-chip microcomputer control circuit, the rotary encoder divides a motor shaft of the motor into 4096 parts after rotating for one circle and 360 degrees, accurately identifies the rotation angle of the motor shaft of the motor and the real-time position of a motor rotor by sensing the first magnet, and sends the rotationangle and the real-time position to the motor driving control circuit; the single-chip microcomputer control circuit controls the speed of the motor through the motor drive control circuit to adjust the tension of the yarn. The constant-tension yarn feeder solves the problem that an existing constant-tension yarn feeder cannot effectively achieve tension balance control yarn feeding.

The invention provides plastic mold multi-station machining equipment, and relates to the technical field of plastic mold machining. The plastic mold multi-station machining equipment is composed of a base, a supporting column, a cross beam, a rotating motor, a grinding piece, a station body, a vertical plate, a center rod, a connecting plate, a side rod, a scraping plate and an auxiliary mechanism, wherein the position, close to the edge, of the top surface of the base is fixedly equipped with the supporting column; the cross beam is fixedly installed at the top end of the supporting column, the rotating motor is fixedly installed on the top face of the cross beam, the grinding piece is installed at the output end of the rotating motor, the station body is fixedly installed on the top face of the base, and the vertical plate is fixedly installed at the position, close to the edge, of the top face of the base. According to the grinding device, after grinding operation is completed, the top face of the base can be conveniently cleaned through the arranged scraping plate, meanwhile, a shielding plate on a side rod can also block a part of chippings, then the chippings generated in the grinding process can be concentrated on the base, cleaning operation is further facilitated, and actual use is facilitated.

The invention discloses explosion-proof glass which comprises box body main glass, sound insulation glass is arranged at the rear end of the main glass, a partition plate is arranged at the upper end of the main glass, a protection mechanism is arranged at one end of the main glass, and the protection mechanism comprises a protection frame, a threaded hole, a fixing groove, a fixing block, a fixing plate, a sliding groove, a sliding block, a triangular plate and a first threaded rod. A buffer mechanism is arranged at one end of the protection mechanism. The triangular plate is fixed to the corner of the main glass, the situation that the main glass explodes due to the fact that a sharp instrument strikes the corner of the main glass is avoided, the displacement distance of the main glass is greatly reduced by means of stretching and compression of a buffer spring, the glass exploding probability is reduced, and by means of limiting of a limiting rod and fixing of a third threaded rod, the service life of the main glass is prolonged. The firmness between the glass and the wall body is improved, the development of the glass manufacturing industry is further promoted, and the use requirements are better met.

The invention discloses a cleaning and cutting device for traditional Chinese medicine decoction pieces, and relates to the technical field of traditional Chinese medicine production. The cleaning and cutting device for the traditional Chinese medicine decoction pieces comprises a cleaning outer cylinder, wherein the cleaning outer cylinder is in rolling connection with a roller body; anti-blocking bristles are inlaid in a connecting vertical plate; a draining inner cylinder is fixedly connected with a universal wheel; a stirring rotating rod is fixedly connected with a spiral blade and a stirring supporting rod; an inner cylinder end cover is fixedly connected with a cleaning and dust removing nozzle; a dust removing fan is sleeved with a dust removing cloth bag; and the cleaning outer cylinder is connected with a supporting assembly in a riveting mode. The cleaning and cutting device for the traditional Chinese medicine decoction pieces provided by the invention solves the problems that a motor of a cleaning and cutting device for the traditional Chinese medicine decoction pieces generally bears too heavy pressure, the traditional Chinese medicine decoction pieces are prone to being stacked together when pre-dedusting is conducted in a spraying mode, the device is prone to vibration when the motor rotates, and meshes are prone to being blocked by disintegrating slag of the traditional Chinese medicine decoction pieces.