44results about How to "Prevent de-grooving" patented technology

A movable pulley traction connecting device used for inclined drift transportation heavy equipment is composed of an auxiliary transport cart and a movable pulley unit which is arranged on the upper portion of the auxiliary transport cart and hinged to the auxiliary transport cart, wherein a connecting hole is formed in a connecting plate at the rear end of a pulley frame of the movable pulley unit, the front end of the pulley frame is composed of an upper supporting plate and a lower supporting plate, a mandrel is arranged in a shaft hole of the pulley frame, a stop collar, a rope sheave and a thrust bearing are sequential arranged between the upper supporting plate of the pulley frame and the lower supporting plate of the pulley frame in series from top to bottom, the rope sheave can rotate around the mandrel between the upper supporting plate of the pulley frame and the lower supporting plate of the pulley frame, rope blocking rollers are arranged on the left side of the pulley frame and the right side of the pulley frame respectively, and rope supporting rollers are arranged on the left side of the front end of the pulley frame and the right side of the front end of the pulley frame in an inclined mode respectively. When the movable pulley traction connecting device is used for the inclined drift transportation heavy equipment, a steel wire rope is twined on the rope sheave through a rope groove, rope ends are fixed near a winch, the connecting hole in the rear end of the pulley frame is used for being connected with a heavily loaded vehicle, therefore, the transportation capacity of the winch is doubled, and the whole machine transportation requirement for some heavy equipment can be met.

The invention discloses a mowing table transmission device of a pedestrian-controlled lawn mower. The mowing table transmission device comprises a flat belt, an engine belt pulley, two cutter belt pulleys and a tensioning wheel mechanism, wherein a mechanism for preventing the flat belt from falling out of grooves is arranged on the outer side of the flat belt between the engine belt pulley and the other cutter belt pulley, and belt blocking hoods are respectively arranged on the outer sides of the two cutter belt pulleys; the upper and lower sides of the flat belt are located between the upper and lower horizontal rods of a belt support rack; the groove width of the engine belt pulley is larger than the width of the flat belt. The mowing table transmission device has the advantages that the device is simple in structure, low in cost and high in use efficiency; when the terrain clearance of a mowing table is adjusted, the flat belt can move vertically to adapt to the height change of the mowing table, and the service life of the flat belt is prolonged; the mechanism for preventing the flat belt from falling out of the grooves uses the belt support rack to prevent the flat belt from falling out of the grooves and can drive the flat belt to move up and down so as to adjust the terrain clearance of the mowing table.

The invention provides a novel high-speed lift door which includes a door frame, a door panel, a rotating shaft, chains, a pair of tension springs and a power unit, wherein the door frame includes vertical door frames and a horizontal door frame which is perpendicular to the vertical door frames and fixed at the top ends of the vertical door frames; door panel sliding rails in smooth connection are arranged on both sides of the door frame in an opposite manner; clamping positions of the door panel are mounted in the sliding rails of the door panel; the rotating shaft is horizontally fixed at the top ends of the vertical door frames; a transmission chain wheel is fixedly arranged on each of both sides of the rotating shaft; one ends of the pair of tension springs are fixed on both sides of the tail end of the door frame, and the other ends of the tension springs are fixedly connected with one ends of the pair of chains; the other ends of the chains bypass the transmission chain wheels and are fixedly connected with both sides of the bottom end of the door panel; the output shaft of the power unit is fixedly connected with the rotating shaft. According to the novel high-speed lift door provided by the invention, the chains, tension springs and transmission chain wheels are used to replace the conventional steel wire rope and rope pulley, so that the problem of derail during the high-speed running of the steel wire rope is avoided, and the high-speed lifting of the lift door is realized.

The invention discloses a cable disengagement-proof pulley rack device for a portal crane. The pulley rack device comprises a pulley rack and a pulley, wherein V-shaped mounting plates are mounted at the two ends of the pulley rack; a shaft is mounted on the V-shaped supporting plate; a roller is arranged on the shaft; a plurality of L-shaped hanger plates are fixed on the pulley rack; supporting shafts are arranged at the lower parts of all L-shaped hanger plates; rolling shafts are mounted on the supporting shafts; separation plates are arranged between every two adjacent rolling shafts. The cable disengagement-proof pulley rack device for the portal crane can effectively avoid a phenomenon that the cable is disengaged from a pulley groove to be abraded or broken, and is beneficial to ensure regular production and reduce the production cost.

The invention discloses a double-roller hydraulic winch, and aims to solve the problems that an existing hydraulic winch needs an external motor and a speed reducer when in operation, so that the existing hydraulic winch occupies a larger space, and the existing hydraulic winch is only provided with one winding drum, so that the working efficiency is low, and meanwhile, a steel wire rope is easy to get out of a groove when in operation. The double-roller hydraulic winch comprises a support, two winding drums and a motor, wherein the motor is mounted on the side wall of the support; a hydraulicvalve group is connected to the bottom of the motor; the two winding drums connected with the motor are mounted inside the support; a rope pressing device fixed to the support is arranged at the upper parts of the two winding drums' the rope pressing device is connected with two pressing rods correspondingly positioned at the upper part of one winding drum, and a plurality of uniformly distributed wire rope clamps are arranged on the side wall, far away from each other, of each winding drum; and the motor side wall is connected with an input sleeve which is connected into a winding drum closeto the motor side wall.

The invention provides a novel traction machine brake device, which comprises a traction sheave, a brake device, a motor and a rack, wherein the traction sheave, the brake device and the motor are arranged on the rack respectively; the heights of groove walls on two sides of a rope groove of the traction sheave are not smaller than the width of the groove; and the brake device is arranged outside the traction sheave. According to the novel traction machine brake device, the structure of a traction machine is modified and simplified, and all parts are integrated into a whole, so that the size is reduced, the self weight of the traction machine is reduced, the production cost is decreased, the brake device is easy and convenient to transport and mount, and the probability that a steel wire rope is separated or jumps from the rope groove of the traction sheave when an elevator cage crushes to the top or collapses to the bottom is effectively reduced.

The invention is applicable to the technical field of transmissions, and provides a gap adjusting mechanism for a gear selecting component of a gearbox. The mechanism comprises a shell and a motor, and a coupler, a lead screw and a sealing block are arranged in the shell; an output shaft of the motor is in transmission connection with the lead screw through the coupler, the lead screw is in threaded connection with a sealing plug block, the sealing plug block is located in a concave hole in the shell, an elastic check ring is further installed between the sealing plug block and the coupler, the sealing plug block is in a circular ring shape, the concave hole is a round hole, external threads are arranged on the peripheral face of the sealing plug block, and internal threads matched with the external threads are arranged in the concave hole. The mechanism reduces the workload in the assembly process, and is beneficial to the batch production of the full-motor-driven transmission.

The invention discloses a front door and window guide rial sealing strip assembly. The front door and window guide rial sealing strip assembly comprises a triangular window, a vertical sealing strip,an upper fixing part, a lower fixing part, a first stabilizing part and a second stabilizing part. The vertical sealing strip is arranged on the vertical edge of the triangular window, and the upper fixing part and the lower fixing part are arranged at the upper end and the lower end of the vertical edge of the triangular window correspondingly. The vertical sealing strip is fixed to car door sheet metal through the first stabilizing part and the second stabilizing part. The front door and window guide rial sealing strip assembly has sealing performance, dustproof performance, waterproof performance and sound insulation performance, the view angle range is widened, the overall appearance is attractive, and the overall firmness is enhanced.

The invention discloses a groove disengaging preventing excrement clearing machine. The machine comprises a driving motor, a traction rope and an excrement clearing plate, the driving motor comprisesa rack, rope wheels and a motor, two rope wheels are arranged and installed at both ends of the rack, the motor is installed on the rack and used for driving the two rope wheels to rotate, an disengaging preventing plate is installed on the rack, at least parts of the sides, winded by the traction rope, of the rope wheels are covered with the disengaging preventing plate, the width of the disengaging preventing plate is arranged to be capable of covering reach rope grooves of the rope wheels, the shortest distance from the disengaging preventing plate to the outermost edge of reach rope grooveis smaller than the diameter of the traction rope, excrement clearing teeth are installed on the rack, parts of the excrement clearing teeth extend into the rope grooves, and extending points are located on the sides, which are not winded by the traction rope, of the rope wheels. The machine has the advantages that the blockage of the disengaging preventing plate impacts on the excrement clearingteeth to achieve the clearing effect to prevent the groove disengaging of the traction rope.

The invention discloses a discharging lifting cylinder lower limit detection device for lifting loading. The discharging lifting cylinder lower limit detection device for lifting loading comprises a mounting plate, a fixing plate is fixedly connected to one side of the top of the mounting plate, a processor is fixedly mounted at the end, close to the mounting plate, of the outer side of the fixingplate, and a first sliding groove is formed in the middle of the fixing plate; and a connecting plate of an L-shaped structure is fixedly connected to the position, located above the first sliding groove, of the outer portion of the fixing plate, and a second sliding groove is formed in the side, away from the fixing plate, of the connecting plate. According to the discharging lifting cylinder lower limit detection device for lifting loading, when a lifting cylinder descends to a supporting object below, it is timely detected that a detecting pulley moves, then a lower limit signal is emittedto warn surrounding workers, and a winding wheel is controlled to stop rotating; meanwhile, the device does not have a fixed lower limit and is not affected by the loading height of a vehicle, and asignal is sent to stop descending as long as the loading lifting cylinder is subjected to the supporting effect below, so that the situations that a copper rope is disengaged from a groove and a lifter is pulled to be damaged can be thoroughly prevented, and an automatic and dynamic lower limit detection signal is realized.

The invention provides an organic component sintering device for a perc solar cell. The organic component sintering device for a perc solar cell comprises: a sintering box; a placing plate which is fixedly mounted in the sintering box; a plurality of mounting openings which are formed in the inner wall of the top of the sintering box; a plurality of glands which are respectively mounted in the plurality of mounting openings in a sliding manner, wherein the tops of the plurality of glands are all positioned outside the sintering box; a plurality of spray pipes which are respectively arranged on the plurality of glands in a sliding manner, wherein the bottom ends of the plurality of spray pipes extend into the sintering box, and the top ends of the plurality of spray pipes respectively extend out of the plurality of glands; and a protective shell which is mounted at the top of the sintering box through a flange. The perc solar cell organic component sintering device provided by the invention has the advantages that: the height of the spray pipe can be independently adjusted, the height of the spray pipe can also be integrally adjusted, and the sintering effect is improved.

The invention discloses a protective cover for a fixed pulley of a crane trolley. The protective cover comprises a trolley frame, and consists of an arc-shaped plate and bent plates; the arc-shaped plate is in the shape of semi-circular ring, and is not sealed; the upper parts of the bent plates are semi-circular, and the lower parts of the bent plates are outwards folded; the two end surfaces of the arc-shaped plate are separately equipped with the bent plates; folded sides on the lower parts of the bent plates are equipped with bolt holes, and are fixedly arranged on the trolley frame through bolts; and at least two or more observation holes are formed in the arc-shaped plate. The protective cover is in clearance fit to a pulley sheet. The semicircular shapes of the upper parts of the bent plates just fit to those of end surfaces of the arc-shaped plates; and the bolts are combined with nuts for regulating height of the protective cover and the slide wheel sheet. According to the technical scheme adopted by the invention, the protective cover achieves the protection effect, further can observe a condition when a steel wire rope works, can prevent the steel wire rope from dropping out of a slot, and has the advantages of being simple in structure, convenient to regulate, and the like.

The invention relates to a test device for tethered satellite ground release and recovery. The test device for tethered satellite ground release and recovery comprises a tether winding mechanism, a wire arranging mechanism, a tension detection mechanism, a tether length detection mechanism, an output tether angle detection and control mechanism and a shell. The test device for tethered satellite ground release and recovery can be used for a research test on release and recovery dynamic characteristics of a ground tethered satellite, not only can measure and control the tension of a tether and complete tether length measurement of child satellite release and recovery, but also can measure and control the attitude entrance angle of the tether, carry out corresponding feedback control on the output angle of the tether, and control the attitude entrance angle, and can adjust the attitude entrance angle, so that release and recovery of the satellite are more controllable. The test device for tethered satellite ground release and recovery has the advantages that the structure is simple and clear, the tether path is clear and smooth, and the problems that the tether slips in the releasing and recovery process and catastrophic winding occurs in the tether due to loosening of the tether are solved.

The invention discloses a self-adaptive deformation driving unit and a deformation driving mechanism, and belongs to the technical field of variant driving. One of the main purposes of the invention is to provide the self-adaptive deformation driving unit, and the self-adaptive deformation driving unit converts the linear displacement output by the piezoelectric stack into the angular displacement, so that the angular displacement output of the self-adaptive deformation driving unit is realized, namely, the self-adaptive angular deformation driving is realized. The second main purpose of the invention is to provide a deformation driving mechanism which is realized based on the self-adaptive deformation driving unit, a plurality of self-adaptive deformation driving units are arranged in an array manner, the units are connected through driving arms, the linear displacement of the piezoelectric stack is converted into angular displacement through the piezoelectric deformation unit, and the linear displacement of the piezoelectric stack is converted into angular displacement. The amplification and superposition of the angular displacement of the piezoelectric deformation units are realized through the unit array layout, and the multi-form deformation driving can be realized as required. The mechanism has the advantages of being simple, compact, large in angle deformation range and high in response driving speed.

The invention relates to a semi-circle guide groove improvement mechanism used for photovoltaic tracking support ropes. The semi-circle guide groove improvement mechanism is characterized in that two ends of a semi-circle guide groove is connected with a swing support in a rigid mode, the middle cantilever segment of the guide groove is meshed with two pulley assemblies arranged on a fixed support, the meshing clearances between the semi-circle guide groove and pulleys are smaller than the diameters of the pulling ropes, and the pulling ropes are effectively prevented from slipping from the groove; an axial supporting function is conducted on the cantilever segment of the semi-circle guide groove by the pulley assemblies, the stress forced state of the semi-circle guide groove in the axial direction is improved, on the premise that the rigid of the semi-circle guide groove in the axial direction is met, the usage amount of the materials can be saved, and therefore the manufacture cost of a photovoltaic tracking support is lowered.

The invention relates to a window glass lifter steel wire rope outlet angle debugging design method. The method comprises the following steps that an input upper guide wheel, a lower guide wheel, a winding wheel, an upper dead center sliding block side face, a lower dead center sliding block side face and a guide rail sliding face are designed; establishing a debugging reference; creating debugging parameters; an upper guide wheel, a lower guide wheel and a winding wheel are adjusted, steel wire rope center line reference circles c1 and c2 are established on the adjusted upper guide wheel and the adjusted lower guide wheel respectively, and then steel wire rope center line reference circles c3 and c4 of the winding wheel are established when a sliding block is located at an upper dead center and a lower dead center; creating an upper steel wire rope center line; creating a lower steel wire rope center line; creating steel wire ropes; adjusting the angle of the steel wire rope. According to the design method, for the design of glass lifters of different vehicle types, the angle of the steel wire rope can be adjusted only by changing preset parameters, the steel wire rope does not need to be modeled again, the design time is greatly saved, and the working efficiency is improved.