556results about How to "Does not affect rotation" patented technology

The invention provides a numerical control machine tool cutting force load simulation device and method. The device comprises a simulation tool device capable of bearing a radial force and an axial force simultaneously, a fixed device is installed at one end of the simulation tool device, a detection device for detecting magnitude of three-way acting forces of the simulation tool device is installed on the fixed device, and the detection device is further fixedly connected with a power device for providing three-way simulation cutting forces for the simulation tool device. After the devices are connected well, the pressure of the power device is adjusted, displacement and deformation of a measuring point are measured in the operating state of a machine tool, and therefore the rigidity of the whole machine tool and the rigidity of the parts can be obtained. According to the device, the three-way acting forces can be simultaneously applied to a machine tool spindle in the normal operating state of the machine tool spindle to simulate an actual machine tool cutting force, and therefore a rigidity chain composed of the rigidity of the whole machine tool and the rigidity of the parts of the machine tool is tested. A weak link in the rigidity chain is found out according to a test result, optimization design is performed on the weak link, and therefore the machining accuracy of the whole machine tool is improved.

The invention discloses rotational flow blowing type self-cleaning anti-blocking dust collection equipment, which comprises a purification dust collection tank body, rotation flow blades, a deflectorouter tube, a filtering tube and a rotating nozzle, wherein the deflector outer tube is arranged on the top end of the purification dust collection tank body, a deflector inner tube is arranged in thedeflector outer tube, a through hole is formed in the side wall of the middle part of the deflector inner tube, a driving axle is arranged inside the deflector inner tube, and the bottom end of the driving axle is connected with a diversion pipe through a coupling; the diversion pipe is vertically arranged in the purification dust collection tank body, and the filtering tube is arranged in the purification dust collection tank body outside the diversion pipe; a plurality of rotational flow blades are arranged on the side wall of the diversion pipe at equal intervals, the outer sides of the rotational flow blades are connected with a cleaning brush. The rotation of the driving axle and the diversion pipe cannot be influenced while air conveniently flows in; the dusty air can be evenly filtered conveniently through the filtering tube, the even filtering pressure situation can be avoided, the filtering effect of the filtering tube can be enhanced, the dust aggregation effect can be improved, and the dust collection is facilitated.

The invention provides a method and device for detecting the rotation angle of a vehicle steering wheel based on an image, and belongs to the technical field of automobiles. The steering wheel is marked, and then a marking image is obtained and identified, so that the rotation direction of the steering wheel and the rotation angle of the steering wheel are judged. By the method, the rotation angle of the steering wheel can be detected in real time, the detection result is accurate, and when the rotation angle of the steering wheel is more than one circle, the rotation angle of the steering wheel is also accurately obtained; by the device, sight of a driver for observing an instrument is not blocked; and the device is convenient to install and demount and strong in portability, and experimental requirements of conventional vehicles are met.

The invention discloses a rotary cleaning platform for the outer wall of a pipeline. The rotary cleaning platform comprises a cleaning platform body. A water storage tank is arranged on the left sideof the cleaning platform body. A water pump is arranged on the right side of the water storage tank. A motor case is arranged on the right side wall of the cleaning platform body. A drive motor is mounted in the motor case. Support rings are fixed to the tops of supporting rods on the two sides of the top surface of the cleaning platform body. A rolling device is arranged in the support rings. Thewall of the pipeline is sleeved with a cleaning sleeve. A drain pipe communicates with the interior of the cleaning sleeve. A cleaning device is arranged in the cleaning sleeve. The cleaning sleeve is clamped in a cleaning sliding groove through a supporting column sliding block at the bottom of a sleeve supporting column. The cleaning sliding groove is transversely formed in the middle of the top surface of the cleaning platform body. An inner wall fixing box is fixed to the outer end of a motor rotary rod and is supported on the inner wall of the periphery of the pipeline through a fastening mechanism. The rotary cleaning platform for the outer wall of the pipeline can rotatably clean the outer wall of the pipeline and can also move left and right to achieve fine cleaning of different positions of the pipeline.

The invention discloses a high-integration wheel-leg composite mechanism. The high-integration wheel-leg composite mechanism comprises a wheel, a shank arm, a wheel-leg composite driving motor, a power switching device used for respectively transmitting the power of the wheel-leg composite driving motor to the wheel or the shank arm, and a mutual exclusion type locking device used for locking thewheel or the shank arm respectively. An output shaft of the wheel-leg composite driving motor is connected with an input shaft of the power switching device; a first output shaft of the power switching device is connected with the wheel axle; the top end of the shank arm is connected to a second output shaft of the power switching device in a sleeved mode; the wheel axle, a first output shaft of the power switching device and the second output shaft of the power switching device are coaxially arranged; and the mutual exclusion type locking device is located between the wheel and the shank armand fixedly connected with the wheel axle and the shank arm. Wheel type and leg type rapid switching can be achieved, the structure is compact and simple, implementation is easy, movement is stable, and manufacturing and popularization are facilitated.

The invention relates to an electric balance car, in particular to a double-wheel electric balance swing car which is more reasonable in design and more flexible to control. The double-wheel electric balance swing car comprises an upper cover, a middle supporting frame and a lower cover. Two symmetrically-distributed empty grooves are formed in the upper cover. Pedals are arranged in the empty grooves and formed by connecting rubber pedal covers and pedal plastic parts. After the outer faces are abraded, only the pedal covers need to be replaced. Evenly-distributed arch-shaped protrusions are arranged on the upper surface of the rubber pedal covers, abrasion is not prone to happening, and the damping effect is good. A spindle is arranged in the middle segment of the middle supporting frame and sleeved with a left sleeve pipe and a right sleeve pipe. A copper ring is arranged between the left sleeve pipe and the right sleeve pipe. After the copper ring is fixed, no deviation happens to mounting of the left sleeve pipe and the right sleeve pipe, and therefore the rotating effect of a car body cannot be influenced. The left sleeve pipe and the right sleeve pipe are fixed to the middle supporting frame through clamp springs. A cycle of optical sensing rubber is arranged on the outer edge of a gyroscope. When the double-wheel electric balance swing car is used at night, speed is correspondingly reduced, and potential safety hazards are eliminated when a user goes out at night.

The invention discloses a non-contact symmetrical labyrinth type waterproof-dustproof carrier roller sealing device. The non-contact symmetrical labyrinth type waterproof-dustproof carrier roller sealing device comprises a center shaft. The center shaft is sleeved with a roller, bearing bases are installed between the two ends of the roller and the center shaft, a bearing is installed in each bearing base, base sealing devices in close fit with the bearing bases are installed in the portions, outside the bearings, of the bearing bases, and shaft sealing devices in close fit with the center shaft are installed on the center shaft; each base sealing device comprises an inner base sealing piece and an outer base sealing piece, each shaft sealing device comprises an inner shaft sealing piece and an outer shaft sealing piece, the outer circumference of each inner shaft sealing piece extends into the portion between the corresponding inner base sealing piece and the corresponding outer base sealing piece and is in clearance fit with the inner base sealing piece and the outer base sealing piece, and the inner circumference of each outer base sealing piece extends into the portion between the corresponding inner shaft sealing piece and the corresponding outer shaft sealing piece and is in clearance fit with the inner shaft sealing piece and the outer shaft sealing piece; each inner base sealing piece, the corresponding inner shaft sealing piece, the corresponding outer base sealing piece and the corresponding outer shaft sealing piece are arranged in a staggered manner, multi-stage sealing is formed, and the sealing effect is good; and all the sealing pieces are in clearance fit, rotation of a carrier roller can not be influenced, and the service life of the carrier roller is prolonged.

Disclosed is a drilling and rolling combination cutter disc structure for a TBM (tunnel boring machine). The drilling and rolling combination cutter disc structure for the TBM is characterized in that a working face of the drilling and rolling combination cutter disc structure is a spherical face which is protruded outwards, a plurality of hob sets different in radius are arranged on the working face and around the center of a cutter disc body, each hob set comprises a plurality of disc type hobs, drilling machine operation holes are formed between each two adjacent disc type hobs, a rail and a rock drilling machine which slides along the rail are arranged on one side of the cutter disc body and along the direction opposite to the TBM work direction, drill bits of the rock drilling machine can stretch out or retract through the drilling machine operation holes, soil and stone discharge holes are located between each two adjacent hob sets and used to discharge excavated soil and stone from the soil and stone discharge holes, and the other rock drilling machine is arranged at the center of the cutter disc body in the same mode. According to the drilling and rolling combination cutter disc structure for the TBM, the rock drilling machines are added on the cutter disc body, and therefore a combination of the drilling machines and the hobs is achieved, rock breaking efficiency is improved, torque of the cutter disc body and the disc type hobs is reduced, and the excavation area of a cutter disc is increased by improving the structure of the cutter disc body and optimizing the arrangement mode of the hobs.

The invention discloses an unmanned aerial vehicle shell with an omnidirectional anti-collision structure. The unmanned aerial vehicle shell with the omnidirectional anti-collision structure comprises an unmanned aerial vehicle. Screw propellers are arranged on four corners of the top part of the unmanned aerial vehicle; a circular groove is concavely arranged in the center of a shell on the top part of the unmanned aerial vehicle; a guide pillar is vertically connected into the circular groove; the bottom end of the guide pillar is in threaded connection with the shell of the unmanned aerial vehicle; an annular rubber sheet is embedded into the circular groove in a way of surrounding the bottom end of the guide pillar; a top plate is fixedly connected to the top end of the guide pillar; a spring is arranged on the guide pillar in a sleeving way; protective screen plates are hinged to two sides of the top plate and cover the screw propellers; semi-circular rings are welded to the lower side faces of the protective screen plates; a movable pipe sleeve is arranged on a position, located under the spring, of the guide pillar in a sleeving way; and lifting blocks are symmetrically arranged on the outer side wall of the lower part of the movable pipe sleeve. According to the unmanned aerial vehicle shell with the omnidirectional anti-collision structure provided by the invention, partial structures of a shell and a support of an existing unmanned aerial vehicle are improved, the protective screen plates are additionally arranged, a support frame of the unmanned aerial vehicle is improved, and a protective frame is arranged, so that the protection on the unmanned aerial vehicle is realized, and the stability of the unmanned aerial vehicle is improved.

The present invention provides a roundness measurement system, including a round frame, including a vertically extending rotating shaft, a connecting arm extending horizontally and fixed to a point aof the rotating shaft, a measuring arm vertically extending and fixed to a point b of the connecting arm; a sensing device, fixed to a point c of the measuring arm, where the sensing direction is parallel to the connecting arm, to detect a distance M between a sensing end and a surface of the measured circular component in a sensing direction; an inclination angle sensing device is configured to sense an inclination angle theta of the connecting arm relative to a horizontal plane in actual measurement, a data acquisition and conditioning device, communicating with the distance sensing device and the inclination angle sensing device to collect and condition a detection signal to form detection data; a data processing device, receiving the detection data, according to a distance L1 between the point a and the point b, a distance L2 between the point b and the point c, and a distance L3 between the sensing end and the point c, M, and theta, calculating a radial distance N between the sensing end and the surface of the measured circular part when the connecting arm is in a horizontal state at each angle, and calculating a roundness value of the measured circular part according to N byusing a preset procedure.

The invention provides a seedling-raising plate cleaning device, and belongs to the field of cleaning machinery. The seedling-raising plate cleaning device comprises a rack, a conveyer belt and a plurality of cleaning units; a water inlet pipe is arranged on the rack; transmission wheels driven by a first motor are arranged on two ends of the inner side of the conveyer belt; the transmission wheels are arranged rotatably on the rack; a plurality of first slots for blocking the seedling-raising plates are arranged at intervals on the outer surface of the conveyer belt, the seedling-raising plates are embedded in the first slots; the larger side of each seedling-raising plate is parallel to the heading direction of the conveyer belt; the conveyer belt penetrates through the cleaning units; each cleaning unit comprises a box body, at least two water spray pipes and at least two vertically arranged brush rods. The seedling-raising plates are driven to move forwards by the conveyer belt and cleaned by the cleaning units, the cleaning of the seedling-raising plates is realized by arranging and taking the seedling-raising plates by manpower, the cleaning process is realized by machines, the manpower cleaning is not required, so the labor intensity of workers is reduced and the cleaning efficiency is improved.

The invention provides a roadway drilling and anchoring equipment comprising a drilling rod drilling device, a drilling rod automatic mounting device, an anchoring agent automatic filling device and an anchor rod automatic penetrating device. The drilling rod automatic mounting device mounts a drilling rod on the drilling rod drilling device, then the drilling rod drilling device drills an eye position in a roadway, the anchoring agent automatic filling device sends an anchoring agent into the eye position, and finally the anchor rod automatic penetrating device anchors the anchor rod in the eye position, so that advance drilling and anchoring of the roadway are achieved. The roadway drilling and anchoring equipment has the advantages that the functions are diverse, switching is convenient, the function of a heading machine is not influenced, advance drilling and anchoring of the roadway are achieved conveniently and fast, construction safety is guaranteed, and the equipment has good popularization prospects.

The invention discloses a filtering device for a lithium sulfate concentrate for lithium mica production. The filtering device comprises a first kettle body and a first liquid outlet pipe. The upper end of the first kettle body is provided with a liquid inlet. The lower end of a filter plate frame is provided with a first filter net. The first liquid outlet pipe is disposed on the right side surface of the first kettle body. The first liquid outlet pipe passes through a second kettle body and is connected to a first feeding pipe. The fixed upper end of the second kettle body is provided with areagent cartridge. The middle of a connection rod is provided with a flow passage. The lower end of a liquid discharge tray is provided with a reaction tank. The left end of the reaction tank passesthrough the second kettle body and is connected to a first motor. The outer side of the right end of the second kettle body is connected to a second liquid outlet pipe. The filtering device can control the use amount of sodium carbonate, guarantee the reaction stability and prevent individual stirring and washing, has a small occupied area, realizes a low cost and has good centrifugal filtration effects.

The invention relates to a bearing comprising an outer bearing ring (1), a rolling body (3) and an inner bearing ring (4). The bearing is structurally characterized in that the inner rackway surface of the outer bearing ring (1) comprises a plurality of bulges (11) protruding towards the inner side of the outer bearing ring (1), the bulges (11) are connected in sequence, and a concave part (12) is formed at a connecting part of every two adjacent bulges (11). The bearing is used for ensuring that the matching surface between the outer bearing ring and a bearing saddle bore is not easy to slip under the working condition of high-speed light load, and the rotation performance of the bearing is ensured, thus, the service life of the bearing is prolonged.

The invention belongs to the technical field of air conditioners, and particularly provides an air conditioner and a control method thereof. The invention aims to solve the problems that an outlet direction of an existing snow protection cover is fixed and cannot be adjusted according to a wind direction change so as to easily cause the backward blowing of wind and snow and influence a ventilationeffect. Therefore, the air conditioner provided by the invention comprises an outdoor unit and a control system, wherein an air outlet is formed in the top part of a tank of the outdoor unit. The airconditioner further comprises a snow protection cover communicating with the air outlet, a rotary drive device connected with the snow protection cover, and a wind direction detection device arrangedon the tank, wherein the snow protection cover and the top part of the tank are rotatably arranged; and the rotary drive device and the wind direction detection device are in communication with the control system. According to the air conditioner and the control method thereof provided by the invention, an outlet direction of the snow protection cover can be adjusted according to the wind direction change, and the outlet direction and the wind direction keep consistent or keep within a small included angle, so that the backward blowing of wind and snow can be effectively prevented, and the ventilation efficiency is improved.

The invention relates to a hydraulic motor with an integrated self-locking mechanism; a brake mechanism is arranged between a shell and a rear cover of the hydraulic motor, and comprises a brake cylinder, a brake spring, a dynamic friction plate and a static friction plate; the brake spring is arranged between the rear cover and the brake cylinder; the dynamic friction plate is matched with a rotor of the motor by a spline; the static friction plate is arranged between the brake cylinder and the dynamic friction plate, and is fixed on the shell; an internal oil cavity is arranged between the brake cylinder and the shell, and is communicated with a control hole; a shuttle valve is arranged in the rear cover of the hydraulic motor; an oil inlet and an oil returning hole are connected with two inlets of the shuttle valve, and an outlet is arranged in the middle of the shuttle valve; and the outlet of the shuttle valve is connected with the control hole of the brake mechanism. The hydraulic motor is small in appearance, compact in structure and short in axle base; and the self-locking function of the hydraulic motor is independent of external high-pressure oil, so that the safety of hydraulic equipment can be improved. When the high-pressure oil is not available at the oil inlet, the speed is rapidly reduced, and the self-locking function can be realized, so that the occurrence of accidents can be prevented.

The invention discloses a polycarboxylic acid water reducing agent with narrow molecular weight distribution and a preparation method thereof, belonging to the technical field of slump retaining agentpreparation. The polycarboxylic acid water reducing agent with narrow molecular weight distribution and the preparation method thereof realize that the molecular weight distribution and controllability of the obtained polycarboxylic acid high-efficiency water reducing agent are greatly improved. After propyl polyoxyethylene ether is mixed with a water-soluble initiator and a water-soluble activechain transfer agent, the obtained molecular weight distribution is narrower, and the dispersibility of the product is better. At the same time, sodium methacrylate sulfonate and modified acrylate compounds are added to facilitate improving of the early strength, slump retention, reinforcement and other properties of the prepared polycarboxylic acid water reducing agent; moreover, a heat preservation interlayer with an automatic regulation function is arranged in a reaction kettle, is beneficial to realizing the conversion of heat transfer and cold transfer in the heat preservation interlayer,improving the lifting sensitivity of the temperature in the reaction kettle, eliminating the need for manual temperature regulation, and effectively avoiding the influence on the preparation of the polycarboxylic acid water reducing agent caused by large temperature control difficulty.

The invention provides a roundness measuring frame and a roundness measurement system having the same. The roundness measuring frame comprises a positioning base, a rotating shaft, a motor, a connection arm, a measuring arm. A central axis is vertically extended and a plurality of positioning holes which are rotated symmetrically relative to the central axis are possessed. The rotating shaft is rotatably installed around the central axis and a positioning pin is possessed. The motor is used for driving the rotating shaft to rotate. The connection arm is fixed to the rotating shaft. A top end of the measuring arm is detachably fixed to the connection arm so as to install a distance sensing device. The roundness measuring frame is configured to make the rotating shaft be manually rotated, and make the positioning pin be inserted into a positioning hole to prohibit the rotation of the rotating shaft when the rotating shaft is rotated to make the positioning pin be opposite to a preset positioning hole so that the distance sensing device detects a radial spacing with a surface of a detected circular component; or the roundness measuring frame is configured to make the positioning pin be separated from the positioning hole, make the motor drive the measuring arm to rotate continuously and make the distance sensing device continuously detect the radial spacing with the surface of thedetected circular component. Suitable ranges of the roundness measuring frame and the roundness measurement system having the roundness measuring frame are wide.

The invention discloses an elevating machine for fermented grains, and belongs to the technical field of wine-making equipment. The elevating machine comprises a lifting platform and an elevating mechanism, wherein the lifting platform is capable of moving up and down along a vertical direction under the action of a hydraulic lifting truck; the elevating mechanism comprises a rotary shaft, an outer sleeve, an auger and a power mechanism used for driving the rotary shaft to rotate; the auger is a spiral blade; an auger housing is installed outside the auger in a sleeving manner; the auger housing is made of a hose; the auger and the auger housing form a flexible conveying pipeline; the outer sleeve is installed at the outer side of the rotary shaft in a sleeving manner; the auger housing is connected with the lower end of the outer sleeve; the upper end of the auger is connected with the rotary shaft; a charge port is arranged in the lower end of the auger housing; a fixed seat is arranged on the outer sleeve and a discharge port is arranged in the outer sleeve; a discharge tube corresponding to the discharge port is arranged on the fixed seat; and the fixed seat is installed on the lifting platform. The elevating machine disclosed by the invention is simple in structure, convenient to operate, time-saving and labour-saving, low in the labour intensity of workers, and high in elevating efficiency for the fermented grains; and the whole process of elevating, transferring and storing the fermented grains is sanitary and environment-friendly.

The invention relates to a double-medium high-pressure rotating joint. A main shaft is supported and arranged in a shell through a bearing assembly; a second core tube is arranged above the bearing assembly, and the lower end of the second core tube is spaced from the upper end of the bearing assembly through a first spacer bush; an upper blocking ring, a thrust ball bearing and a lower blocking ring are sequentially arranged in the core tube and sleeve the main shaft, and the upper blocking ring and the lower blocking ring cling to an upper seat ring and a lower seat ring of the thrust ball bearing; an upper seat is connected with the upper end of the shell, a first core tube is connected to the upper end of the main shaft, a connecting tube is arranged in an inner hole of the main shaft, the upper end of the connecting tube is connected with the lower end of the core tube through a first joint, and the lower end of the connecting tube is connected with a second joint; and a small cover is connected to the upper end of the upper seat, the upper end of the core tube extends into the small cover, the upper seat is provided with an air inlet joint, and a cement slurry port in the small cover is connected with a cement slurry joint assembly. By using the double-medium high-pressure rotating joint, mediums can be replaced or overlaid under the condition that a device is not replaced and parts are also not disassembled or replaced; in addition, double mediums can be simultaneously injected, so that the working time is shortened, and the work efficiency is increased.