83results about How to "Low installation position requirements" patented technology

The present invention relates to a method for detecting a rotation speed and a rotation direction of a rotating apparatus with the digital detection of a single sensor. In the method, a turnable which is connected with a rotation axis with a same axial center is provided on the rotating apparatus. Different directions of the circumference of the turnable are provided with a plurality of inducing pieces of a same sensor. The position angles formed by adjacent inducing pieces are not equal. The inducing pieces are arranged in the sequence of the magnitude of the position angle. When the turnable rotates, a sensor detects the pulse output generated by the inducing pieces. The pulse signal is obtained through a shaping circuit and is outputted to an arithmetic circuit and is connected to a display circuit. A time period S for rotating the turnable for a circle is the summation of a plurality of adjacent pulse interval lengths of a plurality of inducing piece compositions. The rotation speed of the turnable is digitally displayed. The arrival sequence of spacing interval of random adjacent pulse is obtained for determining that the rotation direction of the turnable is clockwise direction or counter-clockwise direction. The invention requires only one sensor for completing the digital detection to the rotation speed and rotation direction of the rotating apparatus. The installation position of the inducing piece of the sensor has no high requirement and the structure is simple. The cost for digital detection and the cost for installing the sensor are reduced.

The invention discloses a method and a device for desulfurizing the tail gas of a ship engine by an electrolytic method by using sea water. The method comprises the following steps of: feeding ship fume from which dust is removed into a first channel of a gas-to-gas heat exchanger, reducing temperature, and allowing the ship fume to flow through an absorption tower; performing electrolysis on natural sea water by using electrolysis chlorine producing equipment to produce a sodium hypochlorite sea water solution; pumping the sodium hypochlorite sea water solution into the absorption tower by a spraying pump in a certain liquid-gas ratio, forming fog drops in the tower, and allowing the fog drops to flow in a direction which is reverse to that of the fume to remove SO2; and discharging the desulfurized fume by a second channel of the gas-to-gas heat exchanger and a chimney. According to the method for desulfurizing the tail gas, the sodium hypochlorite sea water solution produced by the performing electrolysis on the sea water is used as adsorbent and replaces the original natural sea water. The sodium hypochlorite sea water solution oxidizes the sulfite ions dissolved in the sea water into sulfate radicals, so that the speed of absorbing sulfur dioxide by the sea water is improved. An aeration basin in the prior art is eliminated, the SO2 absorption rate of each unit of the sea water is improved simultaneously, the size of the absorption tower is greatly reduced, and a sea water desulfurizing process is applied to a ship.

The invention relates to the technical field related to tunnel driving equipment, in particular to a grouting structure in the tunnel driving process and a grouting method matched with the grouting structure. The grouting structure in the tunnel driving process and the grouting method aim at solving the problem that in the prior art, filling a gap in the back portion of a segment cannot be achieved through synchronous grouting. The grouting structure in the tunnel driving process sequentially comprises a rock stratum and a segment stratum inwards from the inner wall of a tunnel, and accordingly a side-top arch, in unit of blocks, is formed. A support frame is arranged between the segment stratum and the rock stratum, and accordingly a hollow interlayer is formed. A base lining platform is arranged on the bottom of the side-top arch, and reserved grouting holes communicating with the hollow interlayer are formed in the positions, corresponding to the side-top arch blocks, of the top of the segment stratum. The reserved grouting holes are moveably connected with grouting pipes, and the other ends of the grouting pipes are connected with a grouting machine. The grouting structure in the tunnel driving process and the grouting method have the beneficial effects that the grouting cost is not increased, the grouting process is smooth, the utilization rate of the grout is high, the structure of equipment is simple, repairing and later maintenance are convenient, the assembling and disassembling time is short, grouting pressure can be monitored at any time, the grouting quality can be guaranteed, and a framework layer is formed on the contact surface between the grout and water glass so that flowing of the grout to a cutterhead can be reduced.

The invention relates to a switching device and a spring operation mechanism thereof. The spring operation mechanism comprises an installation frame, wherein the installation frame is provided with an output shaft; the output shaft is provided with a closing position and an opening position; a driven connecting lever is fixedly arranged on the output shaft; the output shaft is rotationally sleeved with a driving connecting lever; the driving connecting lever has a release travel in a rotation travel; the output shaft is provided with a stop structure; the installation frame is rotationally provided with a retainer; the retainer is provided with a stop part; the stop part is used for being in stop fit with the stop structure to stop and position the output shaft at the corresponding closing position or opening position before the driving connecting lever strikes the driven connecting lever; the retainer is provided with a locking position for making the stop part and the stop structure in stop fit in the rotation travel; the retainer is also provided with an unlocking part; the unlocking part is struck by the driving connecting lever on the corresponding release travel to compel a retaining bar to rotate away from the locking position. The output shaft is prevented from rotating before the driving connecting lever strikes the driven connecting lever by using stopping and positioning of the retainer on the output shaft, and the safety performance of the switching device is improved.

The invention discloses a detection of corrosion of a stayed cable and an evaluation method thereof. The method comprises the following steps: setting up an early warning detection device for corrosion of the stayed cable, using a test cable to simulate a bridge stayed cable; detecting the test cable, when the steel wire of the test cable with median diameter lower than 2.0mm exceeds 2% of total amount of the steel wire in the stayed cable, a profile cable detection is performed to the test cable, detecting the bridge stayed cable; evaluating the residual bearing capacity; and setting up an detection interval of the stayed cable for further. Compared with the present other methods, the detection method of the invention is more accurate, and the failure of the stayed cable caused by the oversized detection interval can be avoided, and the increased maintenance cost due to the undersized detection interval can be avoided either.

The invention relates to a sleeve rotating device which comprises a limiting part, the limiting part comprises at least three U-shaped limiting blocks, each U-shaped limiting block is provided with a bus barrel mounting part used for being mounted on a bus barrel, each U-shaped limiting block comprises a limiting side wall. The limiting side wall is used for being in stopping fit with the sleeve barrel flange in the axial direction of the sleeve barrel flange; the sleeve rotating device further comprises a driving part, the driving part comprises a chain wheel and chain mechanism, and the chain wheel and chain mechanism comprises a first chain wheel, a second chain wheel and a chain wound around the two chain wheels. The first chain wheel is arranged outside a sleeve cylinder in a sleeving mode when used, the first chain wheel comprises at least two chain wheel sections which are arranged in a split mode, and the chain wheel sections are oppositely combined to form the first chain wheel. The driving part further comprises a power unit, the power unit is fixedly arranged on one U-shaped limiting block, and the second chain wheel is in transmission connection with the power unit so as to rotate around the axis of the second chain wheel.

The invention relates to a motor control method, in particular to a method for remotely controlling a motor through port replication. The motor control method is characterized in that a control port is replicated in a customized pLINK mode, and is separated from a controller body, control commands are issued remotely and executing data and real-time running data are fed back; and different supported protocols can be replaced or converted by the pLINK layer according to applications of a user, information is coded and decoded, the supported protocols can be changed or increased by upgrading driving software, each protocol is provided with an individual data channel, and communication instantaneity and communication efficiency are guaranteed. Installation, later maintenance and interface protection of a motor controller can be greatly simplified; the installation speed is increased; the number and the types of interfaces are reduced; the purchasing cost is reduced; a network can be controlled in a centralized and distributed mode; networking groups can run synchronously or asynchronously; and information of a plurality of controllers can be shared.

The invention discloses an interactive communication driving robot, which relates to a human-computer interaction technology. The interactive communication driving robot comprises a face information identification module used for collecting the face information of a driver and judging the type of expression according to the face information, a central processor used for judging the fatigue grade according to the type of expression and a pre-stored fatigue grade table, sending the fatigue grade to a human-computer interaction module and starting the human-computer interaction module, and the human-computer interaction module used for receiving the fatigue grade transmitted from the central processor and starting a corresponding dialogue list to speak to the driver according to the fatigue grade. Traffic accidents caused by fatigue driving of drivers can be reduced.

The invention discloses a ship rotary shaft system instantaneous rotational speed measurement device and method. The device comprises a magnetic grid, a magnetic read head, a signal preprocessing unit, a signal acquisition unit and a rotational speed calculation unit; the magnetic grid surrounds the surface of a to-be-measured rotary shaft of a ship, and formed round rings are coaxial with the to-be-measured rotary shaft; the magnetic read head is arranged above the magnetic grid, an effective induction face of the magnetic read head faces the magnetic grid and is tangent to the round rings ofthe magnetic grid, and a direction where a long edge of the magnetic read head is positioned should be the same with a rotation direction of the magnetic grid; the signal preprocessing unit is used for converting a magnetic grid pulse signal read by the magnetic read head into a square wave pulse signal; the signal acquisition unit is used for acquiring the magnetic grid square wave signal processed by the signal preprocessing unit and carrying out counting; and the rotational speed calculation unit is used for generating a high-frequency clock signal and combining a magnetic grid square wavepulse number to calculate an instantaneous rotational speed of the to-be-measured rotary shaft. The device disclosed by the invention is convenient to mount, high in reliability, high in rotational speed measurement accuracy and high in frequency.

The invention relates to the technical field of liquid level measurement, in particular to an electric control noninvasive installation type buoy liquid level meter which comprises a top measuring unit, a bottom detecting unit fixed to the lower end of the top measuring unit, an electromagnet and an adjusting motor. According to the electric control noninvasive installation type buoy liquid levelmeter, an internal telescopic adjusting pipe controlled by the adjusting motor is installed in a lateral connecting pipe, and a lateral containing groove internally provided with an elastic overturning control support is formed in the outer side face of the internal telescopic adjusting pipe; the lateral connecting pipe is fixedly installed on the outer wall of a container to be measured through the elastic turnover control support, punching is not needed during installation and fixation, the requirement for the installation position is low, and the application range is wider. An external manual control support is installed on the outer side of a threaded sealing cover, people can select different adjusting and control modes according to needs, and therefore the liquid level meter is simpler and more convenient to use and operate.

The invention discloses a novel large-inertia rotating-shaft braking system. The novel large-inertia rotating-shaft braking system comprises brake installing supports, brakes and a brake disc. In the brakes, guiding columns are installed on an installing base, the guiding columns are sleeved with base bodies, hydraulic cylinders and lower brake pads are installed on the base bodies respectively, upper brake pads are connected with piston rods of the hydraulic cylinders, and travel sensors are installed on the upper brake pads and used for detecting the thickness of the upper brake pads; the multiple brakes are installed on the multiple brake installing supports through installing bases of the brakes, the upper brake pads and the lower brake pads of all the brakes are located on the two sides of the brake disc respectively, and the multiple brakes are evenly distributed outside the circumference of the brake disc. According to the novel large-inertia rotating-shaft braking system, the multiple brakes are adopted, two brake pads are adopted for each brake, braking force is extremely large, the braking effect is quite remarkable, and the novel large-inertia rotating-shaft braking system is suitable for large-inertia rotating-shaft braking; the thickness of the brake pads is detected through the travel sensors in real time, and safety accidents caused by excessive abrasion failure of the brake pads are avoided.

The invention relates to the field of optical fiber installation limiting devices, in particular to a big data optical fiber wire installation limiting device which comprises a fixing structure, a telescopic structure, a first angle adjusting structure, a guiding structure, a driving structure and a second angle adjusting structure. The arrangement of the telescopic structure facilitates the adjustment of the supporting height of an optical fiber wire, enables the supporting range of the optical fiber wire to be larger, and reduces the requirements for the installation position of a telegraphpole; through the arrangement of the driving structure, limiting of the telescopic structure can be done conveniently, and the telescopic structure is more stable after height adjustment; and one endof the telescopic structure used for adjusting the supporting distance is fixed to the second angle adjusting structure, the angle between the telescopic structure and the fixing structure can be conveniently adjusted through the second angle adjusting structure, the supporting angle of the optical fiber wire in the vertical direction can be conveniently adjusted to be changed, and the supportingrange of the optical fiber wire is larger; and meanwhile, the optical fiber wire with different angles can be conveniently supported and guided, and the operation flexibility of optical fiber wire fixing is improved.

The invention discloses an automobile sag repairing tool. The automobile sag repairing tool comprises a pulling force part and a pair of adsorption chains; each adsorption chain is formed in the modethat at least four rectangular hinge blocks are hinged to one another, and the bottoms of the side faces, in the same direction, of the opposite faces of the rectangular hinge blocks are provided withhinge points used for allowing the adjacent rectangular hinge blocks to be hinged; hooks are arranged on the rectangular hinge blocks located at the corresponding ends of the sides, far away from thehinge points, of the adsorption chains; and the rectangular hinge blocks are provided with T-shaped fixing rods in a penetrating mode in the width direction, and suction cups are arranged at the ends, close to the hinge points, of the T-shaped fixing rods. According to the automobile sag repairing tool, in the repairing process, a pair of the adsorption chains are symmetrically adsorbed to the two sides of an automobile sag, a rotating handle is rotated to enable a rotating shaft to wind a first connecting rope and a second connecting rope, the first connecting rope and the second connectingrope pull the adsorption chains to rotate to repair the sag, no supporting point is needed in the repairing process, the condition that in the repairing process, counter-acting force is generated to act on an automobile to generate an adverse effect is avoided, labor is saved, operation is easy, and the automobile sag repairing tool is suitable for a green hand.

The invention belongs to the technical field of machining, and particularly relates to a grey cast iron platform surface polishing treatment system. The system comprises a milling machine, a grey cast iron platform and a detection mechanism, wherein the detection mechanism comprises a left square bracket-shaped frame, a cotton cushion, sliding blocks and a guide rail; the cotton cushion is arranged at the bottom of the inner side of the left square bracket-shaped frame, and the sliding blocks are arranged on the two sides of the bottom of the left square bracket-shaped frame; and the sliding blocks are in sliding connection with the guide rail. According to the system, by arranging the detection mechanism, the large and small cutting amount is prevented, manpower is saved, the machining time is shortened, the polishing cost is reduced, the loss of the gray ink cast iron platform is reduced, and the service life of the gray ink cast iron platform is prolonged.

The invention discloses a pipeline fixing structure and an air conditioner comprising the same. The pipeline fixing structure is used for fixing pipelines or lines in an apparatus and comprises a connecting part, a clamping part, a pipeline fixing part and a limiting part, wherein the clamping part, the pipeline fixing part and the limiting part are arranged on the connecting part; the apparatus comprises a first structure used for cooperating with the clamping part and a second structure used for cooperating with the limiting part; the pipeline fixing part is used for fixing the pipelines and/or the lines; the first structure can be clamped to the clamping part via an opening; and the limiting part comprises a limiting groove, the second structure can be limited in the limiting groove, and an opening of the limiting groove and the opening of the clamping part face towards the different directions. The pipeline fixing structure is provided with the clamping part and the limiting part and is installed through cooperation of the clamping part and the limiting part, besides, as the opening of the limiting groove of the limiting part and the opening of the clamping part face towards the different directions, the requirement of the pipeline fixing structure for the mounting position is low, the pipeline fixing structure can adapt to more mounting positions, and universality of the pipeline fixing structure is improved.

The invention relates to the technical field of traffic control pedestrian warning, in particular to a luminous zebra crossing warning device for a traffic control system. The device comprises longitudinal control pipes installed on the road surfaces at the two ends of the zebra crossing, LED warning lamps used for emitting warning light, a driving motor, an electric telescopic supporting rod, a first infrared human body sensor, a second infrared human body sensor and a solar cell panel used for supplying power. The luminous zebra crossing warning device for the traffic control system has the advantages that the structure is adjustable, the requirement on the mounting position is very low, and the application range is very wide; the LED warning lamp and an internal reflection ball controlled by the driving motor are installed in a lateral assembling cover, light of the LED warning lamp is reflected to the two sides of the zebra crossing through rotation of the internal reflection ball, and meanwhile follow-up display is formed in the outer side of the zebra crossing according to the moving direction of pedestrians; and therefore, early warning can be provided for a driving driver in a dynamic mode, and the warning effect is better and more visual.

The invention discloses a discharged water deodorization device, which comprises a main body (2) and connectors (1), wherein the connectors (1) are connected at the two ends of the main body (2) in asealed way; the connectors (1) are used for being connected with a water pipe in a sealed way; the main body (2) comprises an outer tube body and an inner post body; at least one spiral groove passageis formed between the outer tube body and the inner post body; the length of the spiral groove passage is not smaller than twice of the spiral lead. When the discharged water deodorization device provided by the invention is used, a spiral inside structure is used for forming a space U-shaped structure; the water seal deodorization effect is simply and effectively achieved; in addition, the workcan be realized only through directly connecting the connectors (1) into the water pipe; the requirements on the space occupation and installation position are reduced; the water pipe can be directlyconnected into any position of a water pipe just like a direct connector of the water pipe; the space occupation is reduced to the minimum.

The invention discloses a worm-gear clamp with a spiral spring. The worm-gear clamp comprises a washer, the spiral spring, a bolt, a clamping strip and a clamping block. The clamping strip is bent into a round worm wheel; the clamping block is provided with a worm bolt having a meshing end inserted into an inner cavity of the clamping block; the meshing end is provided with meshing teeth meshing with worm teeth of the clamping strip; the rotation forcing end of the worm bolt is sleeved with the spiral spring; the washer sleeving the worm bolt is arranged between the spiral spring and the clamping block; the washer matches with the spiral spring in diameter; the rotation forcing end of the worm bolt is provided with a bolt head; the inner side of the bolt head matches with the spiral spring in diameter so that two ends of the spiral spring are abutted between the bolt head and the washer. The worm-gear clamp has the advantages such that a clamping range is wide, spring adjustment is great, comprehensive compensation can be achieved, the requirement on a mounting position is low, breaking torque is greater, cost is low, mounting efficiency is high, the fact that tooth gnawing occurring in assembly affects free torque is avoided, and the bolt needs small space.

The invention discloses a ship rotating shaft phase angle measuring device and method. The device comprises a magnetic grating strip, a magnetic read head A, a magnetic read head B, a photoelectric switch, a reflective sheet, a discriminating decoupling circuit, a signal collecting unit and a phase angle calculating unit. The magnetic grating strip surrounds the surface of a to-be-measured rotating shaft of a ship to form a ring coaxial with the rotating shaft. The magnetic read head A and the magnetic read head B are symmetrically arranged above the magnetic grating strip, and the effective sense surfaces thereof face the magnetic grating strip and are tangent to the ring of the magnetic grating strip. The direction of the long side should be the same as the rotation direction of the magnetic grating strip. The magnetic grating pulse signals output by A and B have a phase difference. The reflective sheet is arranged on a ring face adjacent to the magnetic grating strip. The photoelectric switch is arranged above the ring face in which the reflective sheet is located. After the discriminating decoupling circuit discriminates and decouples two pulse signals. The collecting unit carries out unified counting to calculate the current phase angle of the rotating shaft. The device provided by the invention has the advantages of convenient installation, good reliability, high phase angle measurement accuracy, fast frequency and good low speed performance.

Provided is a hydroelectric impeller. A mounting frame is fixedly connected with the middle portion of a rotating body. A plurality of isolation beams are fixedly connected inside the mounting frame.The isolation beams isolate the interior of the mounting frame into a plurality of blade unit accommodating spaces. A blade unit is arranged in each blade unit accommodating space. Each blade unit iscomposed of a hinge shaft fixedly connected to the middle of the corresponding blade unit accommodating space and two blades located on the same side of the corresponding blade unit accommodating space, each hinge shaft isolates the corresponding blade unit accommodating space into two blade accommodating spaces, every two blades and the two corresponding blade unit accommodating spaces are correspondingly arranged, the connecting ends of every two blades are correspondingly hinged to the corresponding hinge shafts, and the free ends of every two blades are limited by the ends of the blade unit accommodating spaces. A limiting stop is fixedly attached to the end, away from the rotating body, of each hinge shaft. The impeller has low installation requirements, can reduce the construction cost of hydroelectric power generation and can adapt to changes in the direction of water flow, and the hydroelectric impeller can be more conveniently installed.

The invention provides a solid rocket engine three-dimensional mass center adjusting structure which comprises a supporting piece arranged at one end of a shell of a rocket engine. A limiting piece is arranged between the supporting piece and the shell of the rocket engine, high and low steps are formed between the limiting piece and the supporting piece, and the balancing weight is provided with a mounting part matched with the supporting piece and the limiting piece; the balancing weight is arranged on the supporting piece and the limiting piece in a sleeving mode, and the balancing weight and the limiting piece are connected together. The problems that in the prior art, the number of balancing weights is large, and each balancing weight needs to be provided with an installation position, so that design and machining are complex are solved. The structure is simple, the design is simple, the influence on the appearance of a product is small, and the requirement for excessive installation positions is omitted; less connection and high reliability are realized; the device is suitable for mass center and mass adjustment in a small range, can achieve small influence on space, and has the advantage of replacement.