15results about How to "Small backlash" patented technology

The present invention discloses a planetary gear reducer with a large-caliber hollow structure, which solves the problem that when the existing planetary gear reducer is applied to a robot, the robot's cables cannot be built-in, resulting in a large device volume, and the existing reducer has a large axial size and weak rigidity. The reducer uses an end cover to axially position the planetary wheel of the first-stage planetary gear reduction mechanism, the current-stage planetary carrier axially positions the planetary wheel bearing, and the upper-stage planetary carrier axially positions the first external tooth of the next-stage sun wheel. At the same time, the same-stage planetary wheel and the planetary carrier directly contact each other to achieve mutual axial positioning; the reducer realizes power input from one side and output from the other side through the cooperation between the hollow sleeve, the input gear and the sun wheel of the first-stage planetary gear reduction mechanism, and the internal cavity of the hollow sleeve, the central through hole of each stage sun wheel and the through hole set in the center of the planetary carrier are connected in sequence, thereby forming a hollow structure for passing the line.

The utility model discloses a kind of synchronous servo paw with protection, can realize high-precision synchronous action, while solving the deficiency existing in dustproof performance of existing servo paw. It includes paw main body, finger assembly and the driving assembly, synchronous transmission mechanism and dust cover installed in paw main body, finger assembly includes two fingers in left and right sides, synchronous transmission mechanism includes a pair of rack, a pair of finger slide plate and a pair of linear guide rail, the output end of driving assembly is equipped with driving gear, two racks are oppositely arranged in the front and back sides of driving gear, and correspondingly connected with two finger slide plates, two finger slide plates are correspondingly connected with two fingers, two finger slide plates are correspondingly slidably connected with two linear guide rails, driving gear is driven by engaging transmission with two racks, drives two finger slide plates to correspond along two linear guide rails sliding, and two fingers are opened and closed by two finger slide plates, dust cover is equipped with driving gear and two rack covers.

The utility model relates to the technical field of vacuum coating equipment, in particular to a multifunctional adjustable target distance rotating stand for magnetron sputtering equipment, which comprises a target distance rotating stand and a target distance adjusting mechanism arranged on the target distance rotating stand, and the target distance adjusting mechanism comprises a transmission gear set and a plurality of target distance telescopic pieces. The transmission gear set comprises a control gear and a power gear which are meshed with each other, each target distance telescopic piece is in transmission connection with the control gear and used for clamping a part to be coated, the power gear is driven by a motor, and when the power gear drives the control gear to rotate, the target distance telescopic pieces are close to or away from the target distance rotating frame. According to the utility model, the target distance can be accurately adjusted in the coating process, so that the coating uniformity, the process flexibility and the film layer quality are improved.

The utility model relates to the technical field of casting ladle tool mechanisms, and discloses a casting equipment casting ladle tool mechanism adopting chain transmission, which comprises a tool arm, a heat insulation cover shell is fixedly arranged on the side edge of the top of the tool arm, a connecting flange is fixed on the top of the heat insulation cover shell, a servo motor is arranged in the heat insulation cover shell, and a chain is arranged in the servo motor. By means of the design that the servo motor serves as a driving mechanism and a position and speed control mode, the servo motor driving mechanism is accurate in action, good in flexibility and suitable for various casting processes, the speed reducer is a precise planetary speed reducer, and the servo motor driving mechanism is large in transmission torque, good in rigidity, small in back clearance and stable in operation. The servo motor and the speed reducer are covered with the heat insulation cover shell, the influence of the environment temperature is effectively prevented, the problem that according to an existing casting equipment casting ladle tool mechanism, the temperature is too high in the casting ladle casting process, and consequently the casting ladle rotation action is not coherent is solved, and the casting quality is guaranteed.

The present invention discloses a method for optimal assembly of a high-precision planetary gear reducer, the method comprising: hierarchical optimal planetary gear; hierarchical optimal sun gear; planetary gear mechanism assembly; hierarchical optimal single-stage gear ring housing assembly; assembly and fixing of input shaft and rear flange; assembly and fixing of output shaft and front flange; housing assembly and fixing. In the present invention, after hierarchical optimal planetary gear, sun gear and single-stage gear ring housing are optimally graded, the eccentric direction of the inner hole of the planetary gear is marked in the optimal process, and the eccentric direction of the four planetary gears is directed to the same direction after being installed in the assembly process, and the corresponding sun gear and single-stage gear ring housing are adapted to ensure that the sun gear always has a clearance in one direction and is in a tight fit in the other direction, so as to avoid the problems of jamming and vibration under high-precision meshing conditions, further improve the transmission accuracy and stability of the reducer, and achieve multiple performance indicators such as high precision, low side clearance, low noise, and low starting torque.

The application relates to a parking space lock technical field, and discloses a curbstone lock which comprises a lock box, a vehicle blocking arm and a driving mechanism, the lock box is provided with a containing cavity; one end of the vehicle blocking arm is hinged to the lock box and can rotate along a second direction around the hinge point, so that the vehicle blocking arm can extend out of the containing cavity or retract into the containing cavity; the driving mechanism comprises a driving piece fixed to the lock box, a moving block arranged in the containing cavity and at least one connecting strip, one end of the connecting strip is connected with the moving block, the other end is connected with the vehicle blocking arm, the driving piece is in transmission connection with the moving block and is used for driving the moving block to reciprocate, so as to drive the connecting strip to drive the vehicle blocking arm to switch between a storage state and an extending state; when the vehicle blocking arm is in the extending state, an included angle is formed between the connecting strip and the lock box. The curbstone lock can effectively prevent the vehicle from violently pushing away the vehicle blocking arm to escape the toll, can significantly reduce the transitional shaking or deformation of the vehicle blocking arm caused by the impact, can reduce the fatigue damage caused by repeated impact, and can prolong the service life of the vehicle blocking arm.

The invention discloses a structure and method for reducing the inclination amount of a sliding block guide rail lifting device, belongs to the technical field of panel carrying and transferring, and aims to solve the problems that the inclination amount exceeds the industrial specified range when a lifting taking and placing device takes and places due to the fact that a guide rail bears large unbalance loading torque, safe operation of equipment is affected, and carried goods can be damaged seriously. Comprising a walking frame, and two racks are arranged on the two opposite sides of the inner side wall of the walking frame correspondingly; the lifting frame assembly is arranged in the middle of the walking frame, and four side plates are fixed to the two opposite side faces of the outer side wall of the lifting frame assembly correspondingly; when the lifting frame assembly moves, limiting on gravity and acting force can be kept all the time, and therefore the inclination amount of the telescopic taking and placing device can be effectively reduced when the telescopic taking and placing device stretches out, safe operation of equipment is guaranteed, and the situation that the heavy object carrying precision is insufficient due to the too large inclination amount is prevented; the economic loss caused by damage of carried goods due to overlarge inclination amount is avoided, and meanwhile, the bearing capacity of the equipment is improved.

The invention provides a high-precision human-shaped finger joint structure, and relates to the technical field of human-shaped finger joints, the high-precision human-shaped finger joint structure comprises a first finger section and a second finger section, and a joint rotating structure is arranged between the first finger section and the second finger section; the joint rotating structure comprises a joint rotating shaft arranged in the width direction of the first finger section, harmonic speed reducers coaxial with the joint rotating shaft are installed at the two ends of the joint rotating shaft correspondingly, and the fixed ends and the output ends of the two harmonic speed reducers are connected with the first finger section and the second finger section correspondingly. A motor with the axis arranged in the length direction of the first finger section or the second finger section is installed in the first finger section or the second finger section, an output bevel gear coaxial with the motor is installed at the end, close to the joint rotating shaft, of the motor, an input bevel gear coaxial with the joint rotating shaft and located between the two harmonic speed reducers is further installed on the joint rotating shaft, and the output bevel gear is meshed with the input bevel gear. Input is achieved through the bevel gears, output is achieved through the double-harmonic speed reducers on the two sides of the finger joints, the transmission precision, rigidity and impact resistance of the joints are greatly improved, and the performance requirement for a motor is lowered.

The present invention relates to the technical field of reducers, and in particular to an RV reducer, which comprises: two crankshafts, two cycloid wheels, a pinion disk, an end cover, a driving mechanism, and a gear shaft. The two crankshafts are driven to rotate by the driving mechanism, thereby driving the two cycloid wheels to swing, and the cycloid wheels mesh with the pinions on the inner circumference of the pinion disk, thereby driving the pinion disk to rotate. When the driving mechanism drives the two crankshafts to rotate, the planetary wheels installed on the two crankshafts are simultaneously driven to rotate, thereby driving the gear shaft meshing with the planetary wheels to rotate. Since the planetary wheels located on the periphery of the gear shaft are driving wheels, the gear shaft located in the middle is subjected to pressure from the planetary wheels when rotating, so that the planetary wheels and the gear shaft are meshed very tightly, thereby reducing the return clearance of the RV reducer, improving the transmission accuracy of the RV reducer, and making the RV reducer suitable for high-precision machining.

The utility model provides a drive-by-wire mechanical brake, and belongs to the field of automobiles. The problems that a traditional braking system is heavy in weight, low in response speed and not easy to arrange, assemble and maintain are solved. The cycloid disc speed reducing caliper comprises a caliper body which is arranged on a caliper seat in a sliding mode, two friction blocks which are oppositely arranged are arranged on the caliper seat, and the rotating end of a motor is connected with the input end of a cycloid disc speed reducing assembly through an eccentric shaft. A locking ring; one end of the cylindrical cam shaft is coaxially arranged in the locking circular ring and is provided with bulges which are in one-to-one correspondence with all the shifting blocks; the ejector rod roller and the cylindrical cam shaft are coaxially arranged, the ejector rod roller is matched with the driving sliding groove, and the motor drives the eccentric shaft to rotate and drives the cylindrical cam shaft to rotate after speed reduction of the cycloid disc speed reduction assembly; the cylindrical cam shaft rotates to drive the ejector rod roller through the driving sliding groove to push the friction block on the corresponding side to press the brake disc, and then the reacting force drives the caliper body to press the friction block on the other side, so that the friction blocks on the two sides press the brake disc. The brake is mainly used for vehicle braking.

This utility model discloses a rotating telescope, belonging to the technical field of telescopes. It includes a telescope body, a rotating base, and a mounting base. The telescope body is mounted on the rotating base, and the rotating base is mounted on the mounting base. A control main board is disposed within the telescope body. A rotating assembly is disposed within the cavity of the rotating base. The rotating assembly includes: a drive component electrically connected to the control main board; a gear connected to the output shaft of the drive component; an external gear ring fixedly connected to the mounting base, the external gear ring meshing with the gear; an encoder electrically connected to the drive component via the control main board; and a knob mounted on the rotating base, one end located outside the rotating base, and the other end located inside the cavity and connected to the encoder. This utility model, by incorporating the encoder within the rotating base and using the connected knob, allows for precise control of the rotation angle of the rotating base.

The invention discloses a planet carrier assembly, a planetary reducer, an assembly of the planetary reducer and an anti-backlash installation method.The planet carrier assembly comprises a first frame and a second frame located in the first frame, and a planet wheel is fixed to the second frame through a bearing; the two end faces of the second frame and the two end faces, close to the second frame, of the first frame are fixedly installed in a matched mode through fasteners, at least part of a frame body of the second frame is of an elastic structure and / or a split structure so that the frame body can generate elastic deformation, and in the expansion process of the second frame, the first planet gear and the fixed gear ring can be meshed more tightly. Before a sun gear is installed on the planetary reducer, an expansion tool is used for expanding the pitch diameter of the axis of a planet gear on a second frame and reducing the meshing gap between a fixed gear ring and a first planet gear, and when the fixed gear ring is tightly meshed with the first planet gear, a second bolt is screwed, so that the adjacent end faces of the first frame and the second frame are in contact; and then the expansion tool is taken out, and then other assemblies are installed.

The utility model provides a kind of worm gear speed reducer for pipe bender, including shell, the worm as input end is rotationally arranged in the shell, the worm gear shaft with worm wheel is rotationally arranged in the shell, worm gear shaft and worm are perpendicular to each other, the hollow portion of worm gear shaft is worn and is equipped with output shaft, output shaft is coaxially connected with worm gear shaft by the mode of key connection.This worm gear speed reducer for pipe bender realizes ninety degrees vertical steering of power input end and output end using intermeshing worm wheel and worm, this transmission mode not only can ingeniously adapt the space layout requirement of pipe bender operation, avoid the interference of power transmission path and processing station, but also can reduce power loss and vibration in steering process by the inherent low back gap, high transmission stability characteristics of worm gear drive.

The utility model discloses a reinforced eddy current sensor relates to eddy current sensor technical field, including signal processor, sensor probe and positioning adjusting mechanism, the signal processor is connected with sensor probe through the connecting cable, the utility model adopts servo motor drive ball screw to adjust sensor probe, has reduced the complexity of manual operation, and because ball screw has smaller friction coefficient and lower wear, the return gap is smaller in the adjustment process, and the error is smaller when repeating positioning, and, after adjusting, lock through the band brake function of servo motor, compares traditional double nut locking, servo motor initiative lock axle, locking force is big, and the anti -vibration and impact performance is excellent, even in complex environment also can keep stable, thereby can keep the positioning performance of stable, has greatly promoted the precision and reliability of equipment, is applicable to the occasion that sensor probe needs frequently adjusting or precision adjustment.

The utility model discloses a speed reducing motor capable of adjusting back clearance, which comprises a box body, a box cover, a transition flange, a motor main body, a transmission assembly and an output shaft, the box cover is fixedly arranged on the box body, the surface of the box cover is provided with a circular mounting groove, a through hole is arranged in the circular mounting groove, and the axis of the through hole deviates from the axis of the circular mounting groove; the transition flange is of a hollow annular structure, the transition flange is rotatably mounted in the circular mounting groove, and the transition flange is connected with the box cover through a detachable connecting piece; the motor main body is fixedly arranged on the transition flange, and a rotating shaft of the motor main body is inserted into the through hole; a gear shaft is integrally formed on the rotating shaft; the output shaft is rotationally arranged on the box body, an output tooth piece is fixedly arranged on the output shaft, and the transmission assembly is arranged between the gear shaft and the output tooth piece in a transmission mode. The gear motor has the advantages that the gap between the gear shaft and the transmission gear sheet can be adjusted by rotating the transition flange, so that the gear motor has higher transmission precision.