566 results about "Cycloid" patented technology

The invention discloses a high-precision and high-reliability harmonic reducer tooth profile simulation machining design method, and belongs to the field of precision transmission. A composite cycloid flexible gear tooth profile is designed by establishing a harmonic reducer geometrical relationship model, deducing a flexible gear deformation equation, an accurate rotation angle relationship and a meshing theory based on an envelope method, and a conjugate region and a conjugate tooth profile are calculated by utilizing MATLAB. Actual deformation and theoretical deformation errors of the flexible gear are analyzed through finite element simulation, flexible gear profile parameters are optimized, an actual neutral layer curve is generated, and then a rigid gear profile is enveloped and calculated. The tooth profile design adopts a non-zero inclination angle composite cycloid, so that the meshing area is expanded by more than 30%, and the maximum stress of the flexible gear is reduced by 22.75% in combination with a linear modification method and a finite element modification method. In addition, through a multi-physical field simulation verification system (including static deformation, dynamic contact and fatigue life prediction) and a neural network optimization tooth shape parameter, the transmission performance is remarkably improved. According to the method, the torsional rigidity can be improved by 66%, and the transmission error is controlled within a high-precision range.

The present invention discloses a cycloid motor and a braking method thereof. The cycloid motor comprises: a motor assembly, a brake housing, one end of the brake housing being connected to the motor assembly; an output shaft, the output shaft being connected to the other end of the brake housing and one end of the output shaft being located within the brake housing; a linkage shaft, the linkage shaft being located within the output shaft, one end of the linkage shaft being connected to the motor assembly and the other end of the linkage shaft being connected to the output shaft; a brake assembly, the brake assembly being located within the brake housing and sleeved on the output shaft; an elastic member, the elastic member being installed within the brake housing and being located on one side of the brake assembly; and a piston, the piston being installed within the brake housing and being located on the other side of the brake assembly. The present invention arranges the elastic member and the piston on both sides of the brake assembly, respectively. While achieving a braking function, it can also significantly reduce wear on the piston and increase the service life of the cycloid motor.

The invention relates to the technical field of cycloid cyclone separation machining, in particular to a cycloid cyclone separation machining machine tool, system and method capable of synchronously machining multiple teeth. The cutter shafts are used for fixing and driving cutters, and the number of the cutter shafts is at least two; the workpiece driving piece is used for driving the workpiece shaft; the cutter shaft driving part is used for driving the cutter shaft; the cutter shaft regulation and control unit is used for regulating and controlling the position of the cutter shaft; when the machine tool runs, the cutter shaft driving part and the workpiece driving part run according to a preset rotating speed ratio, and the rotating speeds of the cutter shafts are the same. According to the cycloid rotational separation machining tool, multi-tooth synchronous machining can be achieved, and the cycloid rotational separation machining efficiency and precision can be further improved by combining the cycloid rotational separation machining tool with the cycloid rotational separation machining system and method.

The invention relates to the technical field of oil field workover treatment, in particular to a rapid blowout wrecking device and method for minor repair operation. According to the technical scheme, a lifting mechanism is installed on workover treatment equipment through a fixing mechanism, a rotary speed reducer is installed at the upper end of the lifting mechanism, a blowout wrecking rotating arm is installed on the upper portion of the rotary speed reducer, the outer end of the blowout wrecking rotating arm is fixedly connected with a fixing base, a turbine is installed in the fixing base, and a rotating short section is installed in the center of the turbine. The lower end of the rotary short section is movably connected with a full-bore plug valve; the worm is installed on one side of the turbine, the worm is driven by the hydraulic cycloid motor to rotate, the worm drives the turbine and the rotary short section to rotate, then the full-bore plug valve is driven to be rotationally connected to an oil pipe of a wellhead, then the switch knob is closed, and blowout wrecking is completed. The full-bore plug valve is installed through mechanical rotation, the follow-up loading function is achieved, potential safety hazards caused by manual installation of the full-bore plug valve are avoided, and rapid blowout wrecking work of blowout is achieved.

The invention is suitable for the field of cycloidal speed reducers, and provides a cycloidal speed reducer which comprises a shell, an input mechanism, an output mechanism, a speed reduction mechanism and a limiting assembly, and is characterized in that the shell comprises a speed reduction supporting front shell and a speed reduction supporting rear shell, and threaded holes are formed in the speed reduction supporting front shell and the speed reduction supporting rear shell; threaded holes are formed in the speed reduction supporting front shell and the speed reduction supporting rear shell in an annular mode, the speed reduction supporting front shell and the speed reduction supporting rear shell are installed in a matched mode through screws, the machining cost of the cycloid speed reducer is reduced, the service life is prolonged, the loss of parts is smaller, meanwhile, the service life can be prolonged by replacing a quick-wear shaft sleeve, and the service life of the cycloid speed reducer is prolonged. And the use cost of the cycloidal-pin wheel speed reducer is further reduced.

The invention discloses a built-in cycloid speed reducer of a humanoid robot joint pin type output structure and a joint module. The problems that an existing robot joint module is large in size, complex in structure, insufficient in transmission reliability and bearing capacity and the like are solved. According to the invention, the frameless torque motor and the cycloidal-pin wheel speed reducer are designed in an integrated built-in manner, so that the structure is highly compact; an output mechanism of the cycloidal speed reducer adopts a pin type output structure, a plurality of transmission pin shafts arranged on an output flange are directly meshed with pin holes in a cycloidal gear, planetary motion of the cycloidal gear is accurately converted into pure rotation motion of the output flange, and the pin type output structure has the advantages of being simple in structure, reliable in transmission and high in bearing capacity. In addition, a parabola modification method is adopted for the tooth profile of the cycloidal gear, the meshing characteristic of the gear is optimized, the transmission stability is improved, and noise is reduced. The joint module has the advantages of being high in integration degree, high in torque density, high in rigidity, high in impact resistance and the like, and is particularly suitable for humanoid robot joints with strict requirements for space and performance.

The automobile part torsional fatigue test bench comprises a bench body, a driving mechanism is arranged at one end of the top surface of the bench body, a workpiece carrying structure is arranged at the other end of the top surface of the bench body, a force application structure is arranged at the position, close to the driving mechanism, of the top surface of the bench body, and the driving mechanism comprises a driving bin. The end, away from the force application structure, of the driving bin is fixedly connected with a servo motor, and the two sides of the middle of the interior of the driving bin are fixedly provided with a cycloidal-pin wheel speed reduction assembly and a planetary speed reduction assembly correspondingly. The driving mechanism is driven by the servo motor, a huge oil supply hydraulic system does not need to be used, the occupied area is small, the output torsion load can be switched through the cycloidal-pin wheel speed reduction assembly or the planetary speed reduction assembly, the load output through the planetary speed reduction assembly is low, constant loads can be repeatedly applied to a workpiece for a long time, and the working efficiency is improved. The output load of the cycloidal-pin wheel speed reduction assembly is high, destructive testing of the maximum load can be carried out, and two detection modes can be considered.

The utility model discloses a TMTB high-voltage cycloid motor brake increasing device which comprises an output shaft and a shell, the output shaft rotationally penetrates through the middle of the shell, a connecting plate is connected to the side face of the shell, a rear shell is connected to the side face of the connecting plate, the output shaft is fixedly connected to a large connecting shaft, and the large connecting shaft is fixedly connected to the shell. The large connecting shaft is located in the shell, the connecting plate and the rear shell, the end of the large connecting shaft is connected with a small linkage shaft, the small linkage shaft is rotationally arranged in the rear shell, a rear partition plate is arranged between the rear shell and the stator and rotor pair, the rear partition plate is arranged on the outer side of the small linkage shaft in a sleeving mode, and a wet-type copper-based friction plate is adopted. The brake has the advantages that the belleville spring serves as a brake composition unit, the copper-based friction plate does not pollute the cleanliness of oil in the motor, the integrated shuttle valve is used in a matched mode, the brake can be released when the motor is started, synchronous braking is achieved when the motor stops running, the braking state during stopping can be effectively guaranteed, and safety and reliability are achieved.

The invention relates to a speed reducer for a robot joint. The speed reducer comprises an inner gear shell, a high-speed input hollow shaft, a first cycloidal gear, a second cycloidal gear, a first roller pin set, a second roller pin set, a pin shaft, an output flange plate and a low-speed output hollow shaft. A first cam and a second cam are integrally arranged on the circumferential outer wall of the high-speed input hollow shaft; the high-speed input hollow shaft is sleeved with the first cycloidal gear and the second cycloidal gear. The first roller pin set and the second roller pin set are arranged along the driving contours of the first cam and the second cam respectively. A plurality of pin shafts which are circumferentially distributed along the rotation axis of the output flange plate are fixedly arranged on the output flange plate; the pin shaft correspondingly penetrates through the pin shaft holes in the first cycloidal gear and the second cycloidal gear in sequence; the output flange plate is rotationally arranged in the inner gear housing; and the low-speed output hollow shaft on the output flange plate penetrates through the high-speed input hollow shaft. The invention has the characteristics of small axial size, high torque and high rigidity.

The three-phase cycloidal planetary reducer comprises eccentric shaft assemblies, cycloidal gears, a planet carrier and a pin wheel housing, the eccentric shaft assemblies are arranged in the circumferential direction of the planet carrier at intervals of 120 degrees, and each eccentric shaft assembly comprises an eccentric shaft, a falling-off type needle bearing and a second needle bearing. The eccentric shaft is provided with three sections of eccentric parts with the same eccentricity, the eccentric directions of the eccentric parts are distributed at intervals of 120 degrees, the eccentric part located in the middle is provided with a falling-off type needle bearing, and the eccentric parts located on the two sides are provided with second needle bearings; one end of the eccentric shaft is connected with a planetary gear through a spline; the eccentric shaft is connected with the planet carrier through a bearing; the cycloidal gear is in transmission connection with the eccentric shaft through a falling-off needle bearing or a second needle bearing at the corresponding position; the planet carrier is connected with the pin wheel housing through a main bearing; a roller pin is installed on the inner side of the pin wheel housing, and the cycloidal gear is meshed with the roller pin. The transmission mechanism has the advantages of being good in integrity, small in transmission error and convenient to assemble.

The invention aims to solve the problem that an existing motor needs to be externally provided with a speed reducer in order to obtain large torque; according to the hypocycloid motor with the floating male rotor, the floating stator is arranged and matched with the inner pin roller, the outer pin roller, the rotor and the oil supply structure, oil pressure distribution in the first gap is changed, under the limiting effect of the outer pin roller, the floating stator is made to deviate and swing, the inner pin roller on the inner side of the floating stator is pushed, the inner pin roller drives the rotor to rotate under the thrust effect, and the floating male rotor is driven to rotate. Finally, the purpose that the output shaft outputs large-torque rotation is achieved. In addition, the floating stator in eccentric offset motion is arranged, so that the rotor can move around the axis of the rotor, and convenience is provided for integrating a sensor, a speed reducer and other structures at the follow-up shaft end of the rotor and the output shaft.

An electric drill reduction structure and an electric drill. The present invention relates to an electric drill reduction structure and an electric drill, and provides an electric drill reduction structure, wherein the electric drill reduction structure comprises a wheel-type continuously variable transmission and a cycloidal pinwheel reducer. The present invention also provides an electric drill, which has the above-mentioned electric drill reduction structure. The electric drill reduction structure comprises a wheel-type continuously variable transmission and a cycloidal pinwheel reducer, and has the characteristics of a wide speed regulation range, stepless speed regulation, balanced operation, low noise, etc., and overcomes the problems of gear box grease easily flowing out of the shift hole and gear shift jamming in traditional structures. The electric drill equipped with the electric drill reduction structure is far superior to traditional gear box hand drills in terms of speed, torque and impact rate in screwdriver mode. Because stepless speed regulation can be achieved, no matter how much power is required, the user can always adjust the speed ratio of the reduction to make the power motor always operate under the maximum power or highest energy efficiency condition.

The invention discloses a double-cycloid speed reducer belonging to the technical field of speed reducers, which comprises an input shaft, a first cycloid mechanism and an output shaft, and is characterized in that a second cycloid mechanism is arranged between the first cycloid mechanism and the output shaft, the second cycloid mechanism is connected in series with the first cycloid mechanism through a transmission shaft, the transmission shaft is linked with the first cycloid mechanism, and the output shaft is connected with the output shaft. The input shaft rotates to drive the transmission shaft to rotate at a reduced speed through the first cycloid mechanism, and the transmission shaft rotates to drive the output shaft to rotate at a reduced speed through the second cycloid mechanism. The first cycloid mechanism and the second cycloid mechanism are arranged in series through the transmission shaft to form a two-stage speed reduction structure of the speed reducer, large-speed-ratio transmission of the speed reducer is achieved, and low noise, low temperature rise, high bearing capacity and high rigidity of the speed reducer in the operation process are kept.

The invention relates to a hypocycloid mechanism comprising: a shaft (4); a gearwheel (7) rotatable about its center and coupled to the shaft (4); a pinion (8) parallel to the gearwheel (7), the pinion being rotatably mounted on an axle eccentrically passing through the gearwheel (7); a cylinder (1) having a piston (2); a connecting rod (3), one side of which is connected to the piston (2) and the other side of which is rotatably connected to the pinion (8), such that the rotation of the gearwheel (7) and the pinion (8) is associated with the reciprocating movement of the piston (2); at least one bearing-supported stationary part (6) in which the gearwheel (7) is rotatably mounted. The present invention is characterized in that: a fixed member (6) is an annular member provided with teeth on the inner side, and a pinion gear (8) provided with teeth on the outer side and meshing with internal teeth (6 ') of the fixed member (6); the gearwheel (7) is provided with teeth on the outside and is rotatably mounted in the stationary part (6) by means of a bearing (6 '') such that the teeth (6 ') of the stationary part (6) extend over a portion of the thickness of the stationary part, and the stationary part further comprises a toothless surface extending over a portion of the thickness of the stationary part and having a bearing support (6''), a gearwheel (7) having a toothless surface complementary to the bearing (6 '') of the stationary part, the gearwheel (7) being coupled by its teeth (7'') to the shaft (4); the connecting rod (3) has two arms (3a, 3b) extending on both sides of the gear assembly (7, 8) wherein a first arm (3a) is connected to the pinion (8) at a first pivot point (O) on one side of the gear assembly (7, 8) and a second arm (3b) is connected to the pinion (8) at a second pivot point (O) on one side of the gear assembly (7, 8). And the second arm (3b) is connected to the pinion (8) at a second pivot point (O ') on the other side of the gear assembly (7, 8) wherein the orthographic projection of the first point (O) on the plane of the gearwheel (7) and the orthographic projection of the second point (O') on the same plane of the gearwheel (7) are always equal. The invention also relates to an engine and a compressor comprising such a mechanism.

The utility model provides a kind of light six-axis robot belongs to mechanical hand technical field.It solves the problem of slow start, brake and low response speed of six-axis robot in prior art due to its heavy weight.The utility model includes turbine box, driving arm seat, light driving arm, connecting rod, intermediate seat, driving wrist and forepaw assembly, turbine flange is installed at the top of turbine box, driving arm seat is connected and fixed with turbine box by turbine flange, the inside of light driving arm is hollow structure and the both ends of light driving arm are formed with large connecting seat and small connecting seat respectively, large connecting seat is connected with driving arm seat, the both ends of driving arm seat are fixedly connected with cycloidal reducer and servo motor, servo motor extends motor shaft, and motor shaft is connected with connecting rod transmission shaft, connecting rod lower end is connected with connecting rod transmission shaft, connecting rod is set along the direction of light driving arm, and the other end of connecting rod is connected with the bottom of intermediate seat, side plate is formed on the both sides of intermediate seat, and small connecting seat is connected with side plate.The utility model has the advantages of light weight and compact structure.

The present invention discloses a grab hydraulic system capable of vibrating and grabbing soil, comprising: a first pipeline and a second pipeline, which are selectively connected to a pressure oil source and an oil tank respectively; a main push cylinder, whose piston rod is used to be connected with a grab to drive the grab to open or close the grab. The rodless cavity of the main push cylinder is connected to the first pipeline, and the rod chamber of the main push cylinder is connected to the second pipeline; a cycloid motor, a first switching valve is connected between its oil inlet and the first pipeline, and a second switching valve is connected between its oil outlet and the second pipeline. The first switching valve is used to control the on-off between the cycloid motor and the first pipeline, and the second switching valve is used to control the on-off between the cycloid motor and the second pipeline; the cycloid motor is connected with an eccentric block, and the eccentric block is connected with the grab, so that when the cycloid motor drives the eccentric block to rotate, the grab vibrates reciprocally along a preset direction. By superimposing vibration and impact while closing the grab, the grabbing force of the grab is improved, and the grab can adapt to harder rock and soil layers.

A single shaft suspension system includes right and left dampers, first and second hydraulic circuits, a first pressurization mechanism in fluid communication with the first and second hydraulic circuits, and a second pressurization mechanism connected in series with the first pressurization mechanism. The first pressurization mechanism is a cycloid pump and provides roll control by generating a pressure difference between the first hydraulic circuit and the second hydraulic circuit, which raises the fluid pressure in the first working chamber of the right damper and the second working chamber of the left damper. Or hydraulic pressure within the first working chamber of the left damper and the second working chamber of the right damper to provide stiffness against roll of the vehicle while turning. The second pressurization mechanism regulates static pressure within the first hydraulic circuit and the second hydraulic circuit by adding hydraulic fluid to and removing hydraulic fluid from the first hydraulic circuit and the second hydraulic circuit.

The invention relates to the technical field of hydraulic motors, in particular to a cycloid hydraulic motor integrating self-lubricating and cooling functions, which can establish an oil return channel inside to smoothly discharge leaked oil, can take away heat and scrap iron generated by friction of a thrust bearing, and can form oil film lubrication between the front end of a shaft and a shell to ensure normal operation of the motor. The motor comprises a motor body, the motor body is provided with a first oil port and a second oil port, the first oil port and the second oil port are communicated with an internal oil duct, an output shaft is arranged in the motor body, and a thrust bearing and a thrust gasket are arranged between the front end of the output shaft and a shell of the motor body. An oil return channel is arranged between the thrust bearing and a shell of the motor body, an oil return through hole communicated with the oil return channel and the in-shaft counter bore is formed in the output shaft, the oil return channel is communicated with the first oil port and provided with a first one-way valve, and the second oil port is communicated to the peripheral face of the front end of the output shaft through an inner flow channel. The oil return channel communicates with the inner flow channel and is provided with a second one-way valve.

The invention relates to the technical field of cycloidal pin gear speed reducers, in particular to a cycloidal pin gear speed reducer assembling method which comprises the following steps that S1, lines are drawn at the same positions of a pair of cycloidal gears for marking; s2, the end cover assembled with the input shaft is laid flat; S3, the first cycloidal gear is placed in a pin wheel housing; s4, the pin gear sleeve is installed in the pin gear housing, and the positioning pin is inserted into the pin gear housing and the pin gear sleeve; s5, a cylindrical roller bearing is installed on an eccentric sleeve, and then the eccentric sleeve is installed in the cycloidal gear; s6, then the other cycloidal gear is put in, the cylindrical roller bearing of the second cycloidal gear is arranged on the eccentric sleeve in a sleeving mode, and the line drawing marks of the two cycloidal gears are staggered by 180 degrees; and S7, then, the positioning pin is pulled out, the gear pin is installed, finally, the output shaft, the machine base and the rear cover are installed, all bolts are tightened, and assembling of the cycloidal pin gear speed reducer is completed. The cycloidal gear has the technical effects that the cycloidal gear can be conveniently mounted, and the possibility of damage to the cylindrical roller bearing is reduced.

The present invention relates to the technical field of aircraft mass characteristic measurement, and discloses a simple aircraft mass characteristic measurement device and measurement method. The measurement device includes a horizontally arranged measurement platform, on which two support mechanisms are installed. The support mechanisms include a base and two hydraulic telescopic rods vertically fixed to the base. A horizontally arranged crossbeam is installed on the top of the two hydraulic telescopic rods. The outer wall of the crossbeam is provided with a plurality of sleeves. A universal joint is fixed to the bottom of the outer wall of the sleeve, and a suspension rope is provided on the universal joint. The present invention suspends the aircraft above the measurement platform, and uses the equilibrium equation of the moment taken at the suspension point to calculate the position of the center of mass relative to the suspension point, thereby determining the position of the center of mass of the aircraft; then, the moment of inertia of the aircraft is measured using the double cycloid method. The operation is simple, the method is reliable, and it can be widely used to measure the mass characteristics of aircraft.

A primary speed reducer and a secondary speed reducer are integrated in a shell, the primary speed reducer comprises a worm and a disc-shaped end face worm gear in transmission fit with the worm, and power is output to a pin gear housing and a pin gear ring of a secondary cycloidal pin gear speed reducer through the disc-shaped end face worm gear; and finally, the power is transmitted to the first cycloidal end cover, the power is output, the transmission efficiency and the total reduction ratio are high, and torque transmission between the first-stage speed reducer and the second-stage speed reducer is achieved. The upper shell and the lower shell are integrated into a whole, the functions of power transmission, torque measurement and the like are integrated together, precise control over the rotating angle of the rotating joint is achieved, the extremely high total reduction ratio is achieved through the small size, the good integration effect is achieved, certain rigidity is achieved, meanwhile, the design and preparation difficulty is low, and the production cost is reduced.

The utility model relates to the technical field of hydraulic driving, in particular to a cycloid hydraulic motor with a driving gear, which comprises an output shaft, a front cover, a body shell, a separation disc, a rotor and stator pair and a rear cover, and the outer side end of the output shaft is axially sleeved with an external driving gear. According to the cycloid hydraulic motor with the driving gear, the rotor profile tolerance of the rotor and stator pair forms a special hill-shaped profile, so that mechanical interference is formed in the operation process, the motor obtains large starting pressure, and the motor has an oil cut-off locking function; the two end faces of the stator pin tooth part are of a double-counter-bore pressure equalizing groove structure, an end face friction pair forms an oil film, and the friction coefficient is reduced. The outer side end of the output shaft is axially sleeved with the external driving gear with the sinking groove, the baffle internally provided with the end bolts is inserted into the sinking groove for assembly, stability is improved, and the structural layout is more reasonable.

A method for winding small and medium-sized coiled rebar is disclosed. The rebar is wound using a horizontal coiled rebar winder. A force-driven clamping wheel mechanism is installed on the slider of the winder. When loaded, the force-driven clamping wheel mechanism clamps and conveys the rebar backward. Two limiting wheels are rotatably installed at the tail end of the rebar guide tube. Behind the limiting wheels is a force-driven and release-enabled rebar pressure bending mechanism. When loaded, the rebar after passing the limiting wheels is bent into an arc shape. The rebar does not rotate before reaching the retractable drum. Before the rebar begins to rotate, the retractable drum is in a retracted state. The force-driven clamping wheel mechanism loads and conveys the rebar backward, while the rebar pressure bending mechanism, after passing the limiting wheels, bends the rebar into an arc shape and winds it onto the retracted drum. When the number of turns of the rebar is greater than or equal to 10, the retractable drum expands, and simultaneously, a motor drives the retractable drum to rotate. This invention improves winding efficiency.

The invention relates to an eVTOL nacelle tilting steering engine based on high reduction ratio transmission and a working method, and relates to the field of electric vertical take-off and landing aircrafts. According to the technical scheme, the design that the double-cycloid speed reducer is combined with the parallel shaft speed reduction gear set is adopted, the wiring harness passing ability problem from the aircraft end to the nacelle is solved, the single-point failure risk that a lead screw of a traditional linear steering engine is stuck is avoided, and the safety and reliability of the steering engine are improved; moreover, depending on the dual-redundancy winding, the dual-redundancy electromagnetic brake and the dual-redundancy rotating speed feedback of the dual-redundancy servo motor, the dual-redundancy design is realized from the electrical level, and the safety performance is further enhanced. In addition, external disturbance can be reduced through high-reduction-ratio transmission, the influence of aerodynamic load disturbance on nacelle actuation is reduced, and the tilting stability is greatly improved.

The invention relates to the technical field of speed reducers, in particular to a cycloidal-pin gear speed reducer for a stirring device, which comprises a supporting seat, a cycloidal-pin gear speed reducer body is fixedly connected to the top of the supporting seat, an oil storage assembly is arranged at the top end of the cycloidal-pin gear speed reducer body, and a damping assembly is arranged at the top of the supporting seat; the oil storage assembly comprises an oil storage pipe, a fixed circular truncated cone, a motor, a movable cover, a plugging plate, a notch, a communicating pipe and a rotating rod. The oil storage pipe fixedly communicates with the top end of the cycloidal pin gear speed reducer body, and the motor is arranged in the top end of the oil storage pipe. According to the device, through a motor, a movable cover, a blocking plate and a notch in the oil storage assembly, the oil injection amount is controlled; the problems of waste of lubricating oil, increase of use cost, increase of running resistance and acceleration of aging of parts caused by excessive oil injection are avoided, and the defects of insufficient lubrication of transmission parts, aggravated part abrasion, shortened service life of equipment and even failure caused by insufficient oil injection are overcome.

The present invention belongs to the field of cycloid hydraulic motors, and specifically relates to a hydraulic cycloid motor for improving the deformation of a balance disk, which includes a motor housing. An output structure is provided inside the motor housing, as well as a flow distribution disk, a stator-rotor pair, a balance disk, and a rear cover connected to the motor housing. A working chamber is enclosed by the rear cover and the balance disk. The motor housing is also provided with a first oil port and a second oil port, and both the first oil port and the second oil port are communicated with the working chamber. A second sealing ring is also provided between the rear cover and the balance disk. By means of the second sealing ring, the working chamber is divided into an inner working chamber and an outer working chamber, such that when the balance disk is fed oil through different oil ports, the area of the working oil chamber on the balance disk side is different, which can well adapt to the different liquid pressures on the rotor side, improve the working efficiency of the motor when the first oil port is fed oil, and make the efficiency of the motor similar when the motor is fed oil through different oil ports.

This invention belongs to the field of propulsion and control technology for vertical takeoff and landing (VTOL) aircraft, and discloses a cycloidal propeller control mechanism and method for driving trailing edge flap deflection using a dual four-bar linkage mechanism. Based on the traditional single four-bar linkage mechanism used to control the periodic pitch motion of the cycloidal blades, this mechanism adds a four-bar linkage mechanism with a similar structure and principle, specifically designed to independently drive the trailing edge flaps for periodic deflection. By separately setting the pitch eccentricity and pitch eccentricity angle of the pitch control four-bar linkage, and the deflection eccentricity and deflection eccentricity angle of the flap deflection four-bar linkage, the pitch motion of the blades and the deflection motion of the flaps can be independently controlled. Through numerical optimization design, a preset phase difference can be established and maintained between the deflection motion of the flaps and the pitch motion of the blades, and the maximum deflection angle of the flaps is constrained within the target amplitude range, thereby achieving effective improvement and active control of the cycloidal propeller's aerodynamic performance.

The utility model provides a cycloid disc reduction gearbox which is applied to the technical field of reduction gearboxes. The cycloidal disc reduction gearbox comprises a reduction gearbox body, an input shaft is arranged at one end of the reduction gearbox body, a first eccentric block is fixedly installed on the outer wall of the input shaft, a first cycloidal gear is fixedly connected to the outer wall of the first eccentric block, and a second eccentric block is fixedly installed on the outer wall of the input shaft. According to the cycloidal disc reduction gearbox, through the arrangement of the reduction gearbox body, the input shaft, the first eccentric block, the first cycloidal gear, the second eccentric block and the second cycloidal gear, when speed reduction work is conducted, the input shaft rotates, and the rotating input shaft drives the first cycloidal gear and the second cycloidal gear to conduct planetary motion through the first eccentric block and the second eccentric block; when the first cycloidal gear and the second cycloidal gear do planetary motion, the pin can drive the output shaft to rotate through the connecting plate, at the moment, the rotating speed of the output shaft is much lower than that of the input shaft, and speed reduction work is achieved. In this way, the speed reduction effect and maintenance convenience of the cycloid disc reduction gearbox are improved.

The dynamic lubrication type cycloid speed reducer comprises a base, a supporting seat is fixedly installed in the middle of the upper surface of the base, a protective sleeve is arranged on the upper portion of the supporting seat, a speed reduction gear module is arranged in the protective sleeve, and a filtering assembly is installed at the position, located at one end of the protective sleeve, of the upper surface of the base. An oil pumping assembly is mounted at the other end of the protective sleeve on the upper surface of the base; the filtering assembly and the oil pumping assembly are both communicated with the protective sleeve. According to the dynamic lubrication type cycloid speed reducer, an innovative lubrication circulation system is combined with a multi-stage cycloid speed reduction structure, the transmission efficiency is remarkably improved, and the service life is remarkably prolonged. The lubricating device has the core advantages that a closed-loop lubricating system composed of the filtering assembly and the oil pumping assembly is adopted, lubricating oil continuously and circularly flows in the protective sleeve, impurities are effectively removed through multi-stage filtering of the filtering cotton, the liquid separation plate and the porous filtering material, the cleanliness of the lubricating oil is kept, and gear abrasion is greatly reduced.

The utility model discloses a rear oil inlet DR series cycloid hydraulic motor which comprises a shell and a rear shell, the rear shell is connected with the shell, an output shaft is rotatably arranged in the middle of the shell, a stator and rotor pair is arranged at the joint of the shell and the rear shell, a linkage shaft is arranged at the center in the shell, and a motor is arranged in the linkage shaft. Two sealing oil cavities are formed through the commutator partition plate and the piston, high-pressure oil is distributed through the commutator, the high-pressure oil is continuously led into the oil distribution disc, and the high-pressure oil is continuously led into the oil distribution disc, so that the high-pressure oil is evenly distributed in the oil distribution disc. The rotor in the stator and rotor pair is pushed to rotate, the linkage shaft is driven at the same time, the output rotating speed and torque are output outwards through the output shaft, the output shaft is supported through the high-pressure seal and the heavy-duty bearing, meanwhile, a hole is drilled in the middle of the linkage shaft, the linkage shaft is cooled and lubricated through hydraulic oil in the shell, and the service life is prolonged.