35results about How to "Reduce swing frequency" patented technology

The invention relates to a cutting machine of fodder for giant salamanders. The cutting machine comprises a machine frame, a first cutting mechanism and a driving mechanism. The machine frame is arranged close to an extrusion opening of a fodder hot-extrusion machine; the first cutting mechanism comprises a rotating shaft and a push rod, the rotating shaft is coaxially and fixedly connected with arotating disc, and the eccentric position of the rotating disc is fixedly connected with a supporting column; the lower portion of the push rod is rotatably connected to the machine frame, a slidinggroove is formed in the upper portion of the push rod in the length direction of the push rod, and the supporting column is slidably connected into the sliding groove; the bottom end of the push rod is fixedly connected with a sector gear, the sector gear is engaged with a rack, the rack is slidably connected to the machine frame, and cutting knife sets used for cutting the fodder are arranged atthe end of the rack; and the driving mechanism comprises a supporting plate rotatably connected to the machine frame, a swing rod is fixedly connected to the supporting plate, the two ends of the supporting plate are rotatably connected with a driving gear and a notched gear correspondingly, the rotating shaft is coaxially and fixedly connected with a rotating gear, and both the driving gear and the notched gear are engaged with the rotating gear intermittently. The cutting machine can cut the fodder in different lengths.

The invention discloses a secondary reheat boiler and a steam temperature regulating method. Through the method that high-temperature flue gas of an outlet of a furnace is directly introduced into a flue of the tail part of the boiler and then low-temperature reheat steam is heated, the temperature control accuracy and temperature regulating sensitivity of the reheat steam can be effectively improved, and that is, the secondary reheat steam temperature is regulated by regulating the flow rate of the flue gas entering the tail flue. Due to great thermal inertia of the secondary reheat boiler, in order to satisfy temperature stability control of the reheat steam in the fast variable load transient process, the flue gas at the high temperature can be directly introduced into the flue of the tail part of boiler, and then fast regulating of the reheat steam temperature is realized. According to the steam temperature regulating method, the quality of reheat steam parameters is effectively improved, the control precision of the reheat steam parameters can be improved, and the current situation of long control cycle and frequent fluctuation of the secondary reheat steam is improved; and frequent swing of the swinging angle of a burner (or frequent swing of a baffle of the tail part of the boiler) can be reduced by changing the flow rate of the flue gas entering the tail part, and thengreat significance is achieved for stable combustion in the boiler.

The invention discloses a floating aquaculture feeding device which comprises a bearing plate. A floating box is embedded in the lower end of the bearing plate, a starting assembly is arranged in thefloating box, a balancing assembly is arranged in the floating box, one end of the balancing assembly is in transmission connection with one end of the starting assembly, a navigation starting assembly is fixedly installed at the lower end of the floating box, one end of the navigation starting assembly is in transmission and rotation connection with one end of the balancing assembly, and a storage box is fixedly installed at the upper end of the bearing plate. Through the arrangement of a material scattering mechanism, an auxiliary recycling mechanism, the starting assembly, the balancing assembly, the navigation starting assembly, a reverse flow preventing assembly and a wind energy assembly, navigation and feeding treatment of the whole device is achieved through driving of one motor, and the stability of the whole device is further improved; and the situation that accurate feeding cannot be achieved due to uncertain fluctuation in the feeding process of the device is avoided, and wind power resources can be utilized for garbage recycling and environment purification treatment of the aquaculture water area.

The invention relates to the technical field of bicycles and discloses a rear derailleur which comprises a derailleur assembly and a chain tensioning assembly hinged to the derailleur assembly. The chain tensioning assembly comprises a base and a swing arm hinged to the base. A one-way damping mechanism and a reset torsional spring are arranged between the swing arm and the base, the one-way damping mechanism comprises a one-way bearing, a damping sleeve and an elastic hoop, the damping sleeve is fixed to the base, the one-way bearing is arranged in the damping sleeve, and the elastic hoop isarranged on the damping sleeve in a sleeving mode and enables the damping sleeve to be pressed on the one-way bearing. The invention designs a rear derailleur with a one-way damping function. When theswing arm rotates in one direction, no damping force exists, when the swing arm rotates in the other direction, the damping effect is achieved, it is guaranteed that enough tensioning force is provided for the tensioning wheel, meanwhile, rotation of the swing arm in the chain disengaging direction is limited, and the problem that a chain is prone to falling off when a vehicle runs on a bumpy road surface is solved.

The invention belongs to the technical field of rice special fertilizer production, particularly relates to a filtering device for producing a special rice fertilizer, and provides the following scheme that the filtering device comprises a bottom plate and a fixing frame. By arranging a buffer reciprocating assembly, when the special fertilizer is filtered, the special fertilizer is guided into a limiting frame, a vibration motor is started, the vibration motor drives a first filter screen and a second filter screen to vibrate at high frequency, and under reciprocating buffering of reciprocating springs, the special fertilizer located on a first buffer plate and a second buffer plate is subjected to lowest vibration damage, and meanwhile, after the special fertilizer is poured into the limiting frame, the special fertilizer impacts the first buffer plate and the second buffer plate, and the reciprocating elastic potential energy of the reciprocating springs drives the special fertilizer on the first buffer plate and the second buffer plate to continuously reciprocate, so that the filtering effect is further improved; and the first buffer plate and the second buffer plate are guided by filter holes in the first filter screen and the second filter screen, so that the filtering speed is increased.

The invention discloses a hoist fastening tool. The hoist fastening tool comprises a cross rod and two supporting arms. A hanging plate is installed at the bottom of the cross rod. A connecting hole and a through hole are formed in the hanging plate, the connecting hole communicates with the through hole, and the axis of the connecting hole is perpendicular to the axis of the through hole. The lower section of an adjustment rod movably penetrates through the cross rod and the through hole in sequence and extends into the connecting hole. A thread is arranged on the outer wall of the lower section of the adjustment rod. The adjustment rod is in thread fit with the cross rod. A pressing block is connected to the end of the lower section of the adjustment rod through a universal joint. An upper hook and the hanging plate are made to form a whole through the downward movement of the adjustment rod and the pressing of the upper hook by the pressing block, and the swing frequency and the swing amplitude of a carrying stand are reduced; meanwhile, the swing movement tendency of the carrying stand is counteracted by means of the self weight of the carrying stand and the self weight of a building material in the lifting process, so that stable rising of the carrying stand and the building material is guaranteed; and furthermore, the situation that in the lifting process, the carrying stand collides with a local part of a lifting opening or a building near the lifting opening is prevented.

The invention discloses a U-shaped capsule concave-convex coupling type outer windshield and a railway vehicle. The outer windshield comprises a front windshield, a rear windshield, a front mounting base and a rear mounting base, wherein the front windshield is connected to the front mounting base, the rear windshield is connected to the rear mounting base, The U-shaped capsule structures of the front windshield and the rear windshield are each provided with straight wall parts which are symmetrical left and right and an arc-shaped part located between the tops of the straight wall parts; eachstraight wall part comprises a bottom with the thickness gradually decreased, a middle with the unchanged thickness and a top with the side thickness gradually decreased from the inner side degree; the arc-shaped part of the front windshield comprises a first arc-shaped front end and an arc-shaped boss section; and the arc-shaped boss section of the front windshield makes contact with the arc-shaped concave table section of the rear windshield in a concave-convex coupling mode. The outer windshield can realize smooth connection of adjacent vehicle body end walls, improve the lateral deformation rigidity of the outer windshield, reduce the vibration of the windshield, reduce the driving resistance of a vehicle, reduce the cabin noise of a passenger car and prolong the service life of a product.

The invention discloses a pointer rotameter, which comprises a tapered tube gradually enlarged from bottom to top, a rotor and a pointer assembly which are placed in the tapered tube and can move freely up and down along the center line of the tube, and a damping device. The damping device is installed under the dial of the pointer and is integrated with the dial. The damping device includes a frame composed of two metal plates and connectors, and a magnetic steel that is attracted to the inside of the two metal plates. There is a gap between the magnetic steels , forming a closed magnetic field, and the counterweight in the pointer assembly can swing freely in this gap. The structure of the invention is reasonable, which can improve the use effect of the flowmeter, greatly reduce the frequency and amplitude of the pointer swing, make the pointer indication stable, and the scale Value reading becomes easy and reading accuracy improves.

The present application provides a data reading method and apparatus based on a RAID disk array. The method comprises: determining target logical partitions corresponding to to-be-read video data, wherein the number of the target logical partitions is M, M is a natural number that is greater than 1 and is not greater than S, S is the total number of logical partitions included in a RAID disk array, and S is not less than 2; assigning the target logical partitions to each mirror group; and reading video data in the assigned target logical partition on a member disk of each mirror group. Application of the method can improve data reading efficiency during multi-channel video playback in a video surveillance application scenario.

The invention discloses equipment used for catalytic combustion of waste gas and capable of recycling energy, belonging to the technical field of waste gas treatment. The equipment comprises a base, wherein a box is fixedly connected to the top of the base, a gas inlet pipe is fixedly connected to the middle of the bottom of the box, an activation mechanism is fixedly connected to the top of the box, the activation mechanism comprises a fixed wall, the surface of the fixed wall is fixedly connected with the surface of the box body, the top of the fixed wall is fixedly connected with a rubber wall, the bottom of the inner side face of the fixed wall is fixedly connected with an air cylinder, the inner side face of the air cylinder is slidably connected with a push rod, and the top end of the push rod is fixedly connected with an air inlet valve. According to the equipment used for catalytic combustion of waste gas and capable of recycling energy, the catalytic mechanism, the activation mechanism, an irregular mechanism, a damping mechanism and other mechanisms are used in cooperation, and the problem of how to improve the use efficiency of a catalyst by changing the motion state of the catalyst and the problem that the surface of a catalyst is carbonized and inactivated due to long-time use in the prior art are solved.

The invention discloses a pointer rotameter, which comprises a tapered tube gradually enlarged from bottom to top, a rotor and a pointer assembly which are placed in the tapered tube and can move freely up and down along the center line of the tube, and a damping device. The damping device is installed under the dial of the pointer and is integrated with the dial. The damping device includes a frame composed of two metal plates and connectors, and a magnetic steel that is attracted to the inside of the two metal plates. There is a gap between the magnetic steels , forming a closed magnetic field, and the counterweight in the pointer assembly can swing freely in this gap. The structure of the invention is reasonable, which can improve the use effect of the flowmeter, greatly reduce the frequency and amplitude of the pointer swing, make the pointer indication stable, and the scale Value reading becomes easy and reading accuracy improves.

The invention relates to a floating satellite relay antenna. The floating satellite relay antenna comprises a floating assembly and signal processing equipment, wherein the floating assembly comprises a floating ball mechanism and an exhausting mechanism; the floating ball mechanism comprises a main floating air ball and balance balls fixed around the main floating air ball in an annular array; the floating assembly further comprises a balancer, the balancer comprises a connecting seat for fixing the signal processing equipment, an annular exhaust groove is coaxially formed in the connecting seat, an opening of the exhaust groove is at the back of the floating ball mechanism, the balance balls are connected onto the exhaust groove through pressure relief hoses, a fixed rod is further arranged on the connecting seat, the tail end of the fixed rod is sharp, the signal processing equipment is arranged on the fixed rod, the signal processing equipment comprises an annular shell, a plurality of air guide plates are arranged on the shell in the annular array, the signal processing equipment of the relay antenna is mounted inside the shell, and an antenna connecting line of the signal processing equipment is connected onto the air guide plates.

The invention discloses an anti-explosion double-power telescopic arm type diesel engine concrete pump car. The anti-explosion double-power telescopic arm type diesel engine concrete pump car comprises a car head, wheels, a concrete roller, a car body frame and an unfolding arm frame; the car head is mounted and connected with the car body frame; the wheels are mounted on the car head and the carbody frame; the concrete roller is mounted on the car body frame; the unfolding arm frame is embedded in the car head and the car body frame; the unfolding arm frame consists of double extension arms,a middle frame, an outer frame and a clamping structure; when single arms extend, the double extension arms are of double arm structures; the middle frame achieves a fixation reinforcing effect; theclamping structure realizes auxiliary improvement of the transmission stability of the double extension arms; extension joints and plate embedding structures realize stable extension of the single arms, so that the stability and the safety of the whole equipment are effectively guaranteed during operation in weathers with higher wind power; transmission shaft rods are used for quickly unbuckling or locking the extension joints at abnormal times to further improve the safety; and the clamping structure realizes auxiliary improvement of the transmission stability of the double extension arms, and accelerates the extension moving speed of the double extension arms to achieve high operation efficiency.

The invention relates to an unmanned ship underwater archaeology control system and method based on bionic fishes. The system comprises an unmanned ship and a bionic fish, wherein the unmanned ship isprovided with a positioning system, a sonar, a control center, a bionic fish throwing and recycling device, a data arrangement module, a first communication module and a first storage module, and ismainly responsible for depth measurement and data fusion storage of an investigation target, and the bionic fish is provided with an inertial navigation system, a high-definition camera, a driving system, a control system, a data analysis module, a second communication module and a second storage module, and is mainly responsible for detection and data screening of the investigation target. According to the invention, the unmanned ship is used as a carrier, and the bionic fish is used as an underwater archaeology investigation target detection main body, so that the problems of limited sinkingdepth and limited underwater operation time can be effectively solved, the risk and personnel cost of underwater archaeology investigation work are reduced, the investigation range is enlarged, and the investigation efficiency is improved.