512results about How to "High transmission precision" patented technology

The invention provides a multi-station numerical control gear grinding machine tool which comprises a machine tool body, a rotary indexing table stand column, a sliding table, a mounting base, a rotary shaft and a grinding wheel spindle, quick switching of workpieces can be achieved only through rotation of the rotary indexing table stand column, the distance between the workpiece spindle and the center of the rotary indexing table stand column is shortened by arranging a workpiece containing concave position, and the machining efficiency is improved. And the transmission precision can be improved. The rotating shaft is arranged in the second installation space, the second installation space communicates with the first installation space, a rotating drive of the rotating shaft can be arranged in the first installation space, the overall gravity center of the grinding wheel spindle and the sliding table is located in the sliding table, the stability of the structure can be improved, and then the transmission precision is improved. Therefore, the multi-station numerical control gear grinding machine tool can effectively improve the transmission stability and the transmission precision, so that the machining quality is improved, and the stability of equipment is improved.

The invention discloses manual control type multi-degree-of-freedom operating forceps, and relates to the technical field of surgical operating instruments. In order to solve the problems that an existing minimally invasive surgical operating instrument is numerous and jumbled in structure and lacks a degree-of-freedom locking structure, and opening and closing of a forceps head are easily interfered by pitching and deflection of a handle, the following technical scheme is provided: the minimally invasive surgical operating instrument comprises the handle, a shell, an actuating part, a connecting rod, a transmission wire and the forceps head, and a locking part is arranged close to the front end of the handle; the action of the operating forceps in the corresponding degree-of-freedom direction is locked or unlocked; a transmission part is arranged in the shell, an arch-shaped arm is arranged at the tail end of the shell, the arch-shaped end of the arch-shaped arm is arranged around the top of the shell, the front end of the arch-shaped arm is connected with a connecting rod, and a tong head is arranged at the front end of the connecting rod. The transmission wire is arranged in the arch-shaped arm, and the transmission part transmits the action of the actuating part to the tong head through the transmission wire. According to the operating forceps, the accuracy of operation of the operating forceps is improved, the visual effect of operation control is improved, and the operation of controlling and locking / unlocking the forceps heads is simple and convenient.

The ship anchor chain automatic welding equipment comprises a base and an anchor chain arranged at the top of the base, a welding structure is arranged at the top of the base, the welding structure can weld the anchor chain, and the welding structure comprises a frame fixedly connected to the top of the base; the side, away from the base, of the frame is fixedly connected with a welding gun assembly, and the welding gun assembly is located at the top of the anchor chain and makes contact with a welding seam on the surface of the anchor chain. According to the anchor chain welding equipment, the welding structure with the fixing structure is arranged, welding seams on the surface of an anchor chain can be accurately welded, the welding quality is ensured through the direct contact design of the welding gun assembly, the welding efficiency and precision are improved, and through the integrated base, the welding structure, the fixing structure, the transmission structure, the traction structure and the linkage structure, the welding quality is improved. The automatic welding process of the ship anchor chain is achieved, due to the integrated design, the production efficiency is improved, manual intervention is reduced, and the welding quality and safety are ensured.

The utility model provides a large-drift-diameter headstock of a cylindrical grinding machine, and belongs to the technical field of machine tool machining equipment. The device comprises a body shell and a main shaft channel horizontally arranged in the body shell, a main shaft is arranged in the main shaft channel in a penetrating mode, the front end of the main shaft is connected with a large-drift-diameter chuck, the main shaft is rotationally connected with the main shaft channel through a rotary connecting assembly, and a lengthened positioning groove coaxially arranged with a chuck positioning groove in the large-drift-diameter chuck is horizontally formed in the main shaft in a penetrating mode. The rear end of the main shaft is sleeved with a driven wheel, the driven wheel is connected with a driving assembly, and the driven wheel is connected with the rear end of the main shaft through a radial positioning structure. The driven wheel and the main shaft are positioned at high precision, the position of the driven wheel on the main shaft is accurate and stable, and the main shaft is high in transmission precision and small in transmission error; a rear-mounted direct transmission main shaft is adopted to rotate, the structure is compact, the transmission links are few, and the transmission error is small; and the workpiece is fixed more stably and reliably.

The invention discloses an ultra-large type high-speed plastic extrusion flat film and flat filament unit which comprises an extruder, a water tank, a film lifting and filament cutting device, a hot air oven, a drafting mechanism, a shaping mechanism and a filament collecting mechanism. The drafting mechanism comprises a drafting rack, a drafting transmission shaft, a drafting shaft unloading device, a drafting roller, a drafting roller connecting sleeve, a drafting roller tensioning sleeve and a drafting roller motor; the number of the drafting transmission shafts is at least three, the drafting transmission shafts are arranged in parallel, the drafting shaft unloading devices extend to the middles of the drafting transmission shafts from one ends of the drafting transmission shafts, and at least two drafting roller connecting sleeves arranged in the radial direction of the drafting roller are arranged in the drafting roller. And a drafting roller tensioning sleeve is arranged between the drafting roller connecting sleeve far away from the drafting rack and the drafting transmission shaft. The ultra-large type high-speed plastic extrusion flat film and flat filament unit is high in operation speed, high in production efficiency, good in stability, low in energy consumption, capable of effectively reducing the production cost, excellent in product mechanical performance and stable in quality.

The ultra-miniature harmonic speed reducer with the double-flexible-gear structure comprises a steel wheel, an input shaft, a supporting bearing structure, a multi-stage flexible gear structure and an output shaft, an upper cover and a lower cover are fixedly installed on the upper side and the lower side of the steel wheel correspondingly, and the input shaft and the output shaft are rotationally connected with the steel wheel through the supporting bearing structure; the input shaft and the output shaft are in driving connection through a multi-stage flexible gear structure, and the multi-stage flexible gear structure is formed by connecting a plurality of flexible gear structures in series. The harmonic speed reducer is provided with the double flexible gear structures which are connected in series, the harmonic speed reducer is large in transmission ratio, high in bearing capacity and high in transmission precision, and compared with a traditional harmonic speed reducer, the harmonic speed reducer can be of an ultra-micro structure, has the high transmission ratio and large torque, can be suitable for the small-space use environment, is higher in applicability and has the good market prospect in the field of miniature equipment.

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 clamping mechanism comprises a chuck body and four sets of air cylinders evenly arranged in the circumferential direction, and piston rods of the air cylinders are arranged in the radial direction of the chuck and fixedly installed at the front end of the chuck body. A clamping jaw assembly is fixedly installed on the cylinder body, an organ protective cover is connected between the cylinder body and the end of the piston rod, two synchronous gear rings are coaxially arranged at the rear end of the chuck body, and the cylinder bodies of the two adjacent air cylinders are in transmission connection with the two synchronous gear rings correspondingly. And therefore, the two groups of symmetrically arranged air cylinders synchronously act through the same synchronous gear ring. According to the embodiment, the power source is externally arranged, the internal space of the chuck is saved, meanwhile, later maintenance is facilitated, the power source is directly connected with the clamping execution end, transmission loss is avoided, larger clamping force is achieved, meanwhile, a sliding block structure is avoided, and the phenomenon of sliding clamping stagnation is eradicated.

The invention discloses a reverse planet roller screw rod based on an integral planet carrier. The reverse planetary roller screw rod comprises a long nut, a screw rod shaft, a roller, an integral planet carrier and a sliding bearing assembly, the integral planet carrier designs a traditional left-side split planet carrier and a traditional right-side split planet carrier into an integral structure, and therefore the phenomenon that the left side and the right side of an original split structure are tiny and asynchronous due to a gear transmission gap is avoided. The integral planet carrier is provided with the rollers, so that the rollers are uniformly borne, the transmission stability and reliability are improved, meanwhile, the sliding bearings are additionally arranged between the integral planet carrier and the rollers and between the integral planet carrier and the lead screw shaft, friction is reduced, and the transmission efficiency is improved.

The utility model discloses a material conveying mechanism for laser welding. The material conveying mechanism comprises an adjusting clamp set, a driving motor and a conveying assembly. The adjusting clamp set comprises a fixed seat, a guide seat, a first clamping flap and a second clamping flap, and the guide seat is in sliding connection with the clamping flaps through guide pins and used for driving the clamping flaps to be opened and closed and adjusting the clamping distance; the driving motor comprises a driving motor body and a lead screw, the lead screw is sleeved with the guide base through a screw hole, and automatic adjustment of the clamping structure is achieved; the conveying assembly comprises peristaltic petals installed at the ends of the clamping petals and eccentric wheels, the eccentric wheels are driven by the output shaft sleeve to rotate, and materials are clamped and conveyed in a peristaltic mode. The mechanism can realize self-adaptive clamping and stable propelling of welding materials with different specifications, has the advantages of compact structure, stable transmission, high universality and the like, and is suitable for material precision conveying requirements in automatic laser welding equipment.

The utility model discloses a shipborne three-axis antenna turntable, which belongs to the technical field of antennas and comprises a base, the base is rotatably connected with a turntable surface through a turntable bearing, the turntable surface is connected with a power supply and an azimuth motor seat, the azimuth motor seat is connected with an azimuth motor through a first planetary reducer, and the azimuth motor is connected with a second planetary reducer through a second planetary reducer. The base is connected with an outer ring of the collector ring, and the base is connected with a shifting piece of the rotary joint; according to the utility model, the turntable main body is formed by splicing aluminum alloy materials, so that the weight is reduced, the cost is reduced, the turntable azimuth, pitching and transverse rolling three shafts of the turntable adopt gear transmission, the turntable has the characteristics of high reliability, high transmission precision and the like, and the turntable can realize azimuth, pitching and transverse rolling large-angle and high-speed rotation; swing and displacement (below five-level sea conditions) simultaneously generated by the ship in the course direction, the transverse direction and the longitudinal direction are counteracted, and the uninterrupted interactive transmission function of the antenna and the satellite is achieved.

The invention relates to the technical field of mechanical design and manufacturing, and provides a single-motor anti-backlash mechanical rotating platform. The rotating platform comprises a horizontal adjusting mechanism, a gear anti-backlash mechanism, a truss mechanism and an optical platform. The gear anti-backlash mechanism is arranged on the side face of the rotating base. The single-motor high-elasticity compensation gear anti-backlash mechanism is easy and convenient to control and low in cost, meanwhile, the influence of backlash backlash is solved, backlash errors and kick errors are reduced when an optical platform rotates in the forward direction and the reverse direction, transmission precision and stability are improved, and gear abrasion is reduced. Through the splicing type truss mechanism designed in a lightweight mode, the multi-unit optical platform and the adjusting mechanism, the mechanical rotating platform which is good in rigidity, high in plane precision and large in assembling space can be spliced, assembling is easy, and hoisting is convenient; the rotating platform is especially suitable for large precise instruments such as large telescopes and the like requiring large assembly space.

The utility model relates to the technical field of ball screws, in particular to a ball screw pair with a ball circulating mechanism on a screw body. Comprising a lead screw, a nut, balls and two ball circulators arranged at the two ends of a threaded body of the lead screw respectively. The lead screw and the nut are matched and jointly form a spiral raceway used for rolling of the balls. The ball circulator is provided with a circulating raceway and a ball inlet and outlet threaded raceway which are communicated with each other; the ball inlet and outlet threaded raceway is jointed with the spiral raceway on the thread body fitting surface of the screw rod; a ball reverse channel is arranged in the threaded body of the screw rod and communicated with the circulating raceway, so that the ball circulator can be applied to a ball screw rod pair applied by functional parts with limited space, and the transmission precision and stability are further enhanced while the transmission efficiency is improved by utilizing the ball circulating raceway; a closed-loop circulation system is formed, smooth operation of the balls is guaranteed, different space requirements are flexibly met, and the same efficient and reliable effect is achieved in a space limited scene.

The invention relates to the technical field of transmission devices, in particular to a high-precision planet small-tooth-difference speed reducing mechanism which comprises a fixed inner gear ring, an output inner gear ring, a center shaft, a sun gear and a planet carrier. The fixed inner gear ring and the output inner gear ring are rotationally connected through a bearing, tooth number difference exists between the fixed inner gear ring and the output inner gear ring, and the sun gear sleeves the middle of the center shaft and is integrally formed with the center shaft. The planet carrier comprises a planet plate, a cylinder and a fulcrum shaft; the planetary plate, the column body and the fulcrum shaft are of an integrally formed structure; a planet gear A and a planet gear B are mounted on a fulcrum shaft of the planet carrier, and at least one of the planet gear A and the planet gear B is in meshing transmission with the sun gear; meanwhile, the planet wheel A is in meshing transmission with the fixed inner gear ring; the planet gear B is in meshing transmission with the output inner gear ring, and a radius difference exists between the planet gear A and the planet gear B. A traditional eccentric shaft mechanism is omitted, manufacturing is easy, dynamic balance is good, noise is low, transmission precision is high, and the speed reduction requirement for the small space and the large speed ratio is met.

The invention relates to the technical field of robots, and provides an actuator, a joint module, a joint arm, a biped robot, a quadruped robot, a four-wheel-foot robot, a humanoid robot and a robotic.The actuator comprises a shell roughly in a hollow cylindrical shape, a motor assembly and a speed reducer assembly, and the speed reducer assembly comprises an inner gear ring roughly in a hollow cylindrical shape; the inner gear ring is embedded in the shell and fixedly connected with the shell through a plurality of first fasteners, and the first fasteners are arranged in the radial direction of the shell so that the shell can be fixedly connected with the inner gear ring in the radial direction. The actuator can be set to be smaller in axial size and radial size, the requirements for compactness and miniaturization of products in the field of robots at present are met, meanwhile, matching and installation of the shell and the inner gear ring are facilitated, assembly errors are reduced, and the transmission precision and stability of the actuator are improved.

The utility model provides a film pasting device. The film pasting device comprises a base, a toothed rail and a roller assembly. The base is provided with an accommodating groove which is used for fixing the electronic equipment and the protective film; the toothed rail is fixedly connected to the base; the roller assembly is slidably connected to the base in the extension direction of the toothed rail. The roller assembly comprises a roller and a gear part connected to the roller, the gear part is assembled on the toothed rail, and the gear part can move along the toothed rail to drive the roller to move in the extending direction of the toothed rail; when the roller moves to the second end of the base from the first end of the base in the extension direction of the toothed rail, the roller can push and press the protective film, so that the protective film is pasted to the electronic equipment. Compared with the mode that a roller moves through a common sliding rail, the transmission precision of the gear piece and the toothed rail is high, movement is more stable, the error of the sliding rail moving track is reduced, the film pasting precision and the film pasting quality are improved, more labor is saved when a user moves the roller, and the film pasting efficiency is further improved.

The invention relates to the technical field of precise mechanical equipment parts, and discloses a high-precision hollow rotating platform which comprises a fixing seat, a hollow cylinder table is arranged in an inner cavity of the fixing seat, two crossed roller bearings are fixedly connected to the side wall of the hollow cylinder table, and two annular caulking grooves are formed in the cavity wall of the fixing seat; the outer rings of the two crossed roller bearings are embedded into the two annular caulking grooves respectively and fixed, the top and bottom of the inner ring of each crossed roller bearing and the top and bottom of the outer ring have height difference, the part, protruding out of the outer ring, of the side wall of each inner ring is attached to the wall of the fixing base, and the two crossed roller bearings are used for averagely sharing the load force borne by the hollow cylinder table; the two crossed roller bearings are arranged to connect the hollow cylinder table with the fixing seat, and the weight borne by the device after installation can be uniformly distributed to the two crossed roller bearings, so that the loading force of the device is improved, and meanwhile, the situation that the transmission precision is affected due to the fact that friction force is increased due to the fact that a single crossed roller bearing bears large weight is avoided.

The invention discloses a hinge assembly, a mechanical joint and a robot. A plurality of structural members of the hinge assembly comprise a first structural member, a second structural member and a third structural member. The plurality of bearings of the hinge assembly includes a first bearing and a second bearing. In the axial direction, the bearing seat of the second structural part is located between the bearing seat of the first structural part and the third structural part, the first bearing ring is located between the first bearing and the second bearing, and the two end faces of the first bearing ring abut against the inner ring of the first bearing and the inner ring of the second bearing correspondingly. The second bearing ring is located between the second bearing and the third structural part, and the two end faces of the second bearing ring abut against the inner ring of the second bearing and the third structural part correspondingly. The hinge assembly further comprises a fastening assembly, and the fastening assembly fastens the inner ring of the first bearing, the first bearing ring, the inner ring of the second bearing, the second bearing ring and the third structural part together in the axial direction. Therefore, linkage of the third structural part, the inner ring of the first bearing and the inner ring of the second bearing can be achieved.

The invention discloses a walking transmission mechanism, a walking device and a three-dimensional storage robot, the walking transmission mechanism comprises a box body and a gear set arranged in the box body, and the gear set comprises a primary rail transmission gear set, a reversing gear set and a secondary rail transmission gear set; the mother rail transmission gear set comprises a driving mother rail gear and a driven mother rail gear which are meshed with each other, the driving mother rail gear serves as a walking power input end, and the driven mother rail gear serves as a first walking power output end; the reversing gear set comprises a reversing output shaft, a reversing input bevel gear and a reversing output bevel gear, the reversing input bevel gear and the reversing output bevel gear are meshed with each other, the reversing input bevel gear is arranged on one side of the driven mother rail gear and keeps static relative to the driven mother rail gear, and the reversing output shaft is connected with the reversing output bevel gear. The sub-rail transmission gear set comprises a driving sub-rail gear and a driven sub-rail gear which are meshed with each other, the driving sub-rail gear is connected with the reversing output shaft, and the driven sub-rail gear is a second walking power output end. According to the invention, the secondary rail transmission shaft and the primary rail transmission shaft can be prevented from being vertically crossed.

The invention relates to a harmonic gear meshing pair with a cycloid tooth profile and a design method of the harmonic gear meshing pair, and belongs to the technical field of mechanical transmission. The tooth profile of the harmonic gear meshing pair is mainly composed of a flexible gear profile, a rigid gear profile and a wave generator profile. Wherein the end face tooth profile or the normal face tooth profile of the flexible gear is a cycloid tooth profile, the cycloid tooth profile is formed by combining a cycloid curve section and an arc curve section, and the tooth profiles at the two ends are in smooth connection; the rigid gear is a thin-wall internal gear, and the tooth profile is an arc tooth profile or is obtained through enveloping calculation of the tooth profile of the deformed flexible gear; the contour of the wave generator is an elliptic curve. According to the harmonic gear meshing pair, the multi-tooth meshing characteristic is brought into full play in the meshing process, meanwhile, the number of meshed teeth accounts for 50% or above of the total tooth number, and the transmission precision and the bearing capacity of harmonic gears can be effectively improved.

The utility model discloses a high-precision transmission shaft of a high-frequency welded pipe unit, which belongs to the technical field of transmission shafts and comprises a shaft sleeve, a spline shaft inserted in the shaft sleeve, a spline groove formed in the shaft sleeve and matched with the spline shaft, and a shaft rod fixed at the end part of the spline shaft, cruciform universal joints are installed in the first movable connecting pieces, and second movable connecting pieces are installed at the ends of the cruciform universal joints. The fins are uniformly arranged at one end, close to the first movable connecting piece, of the shaft sleeve and one end, close to the first movable connecting piece, of the shaft rod in the circumferential direction, so that the fins can rotate along with the transmission shaft in the rotating process of the transmission shaft, wind flowing towards the cross universal joint is generated, the flowing speed of air at the cross universal joint is increased, the cooling effect on the cross universal joint is accelerated, and the service life of the cross universal joint is prolonged. Abrasion to the cross universal joint is reduced, the service life of the device is prolonged, and the transmission precision of the device is improved.

The utility model discloses a high-precision ATC automatic tool changing mechanism which comprises a tool magazine assembly and a driving assembly which are vertically installed on a machine tool, the bottom of the driving assembly is connected with a tool changing arm, the tool magazine assembly comprises a tool magazine back plate close to the driving assembly, and a protruding sleeve is arranged on the side, away from the driving assembly, of the center of the tool magazine back plate. A rotating disc is installed on the sleeve, a mounting plate is fixed to the other end of the sleeve, a tool magazine driving motor and a tool changing air cylinder are arranged on the mounting plate, tool clamping mechanisms distributed annularly are arranged on the peripheral face of the rotating disc, and a tool changing groove is formed under the tool magazine back plate. The actions of taking down and replacing tools are completed below the tool magazine through the bidirectional tool changing arm structure, the tool changing efficiency is improved, the motor drives the rotating disc through the pressing wheel, the transmission precision is high, and the failure rate in the tool changing process is reduced.

The utility model relates to the technical field of control valves, in particular to an automatic control multi-stage adjustable duplex V-shaped hemisphere adjusting ball valve, which comprises a valve body component (1), a valve seat component (3), a valve rod component (4), a lengthened valve cover component (6), a transmission component (7), a rack transmission position adjusting mechanism (8) and a power mechanism (9). The valve rod assembly (4) is arranged on the valve body assembly (1), and the transmission assembly (7) drives the valve rod assembly (4) to rotate under the action of the rack transmission position adjusting mechanism (8) and the power mechanism (9) so that the valve body assembly (1) can be opened or closed. The ball valve has the advantages of being compact in structure, light in weight, high in adjusting precision, high in sealing performance and capable of achieving automatic control, meanwhile, a multi-stage flow adjusting mode is achieved, and accurate flow control can be achieved under various severe working conditions.

A coupler assembly between rolling mill motors comprises a first crowned tooth coupler, a second crowned tooth coupler and a flange coupler, the first crowned tooth coupler and the flange coupler are installed on a first motor shaft of a first motor, and the first crowned tooth coupler is provided with a radial flange. The radial flange is fixedly connected with a connecting flange on the flange coupling through a bolt; the second crowned tooth coupling is installed on a second motor shaft of the second motor, and an outer gear sleeve of the second crowned tooth coupling is fixedly connected with an outer gear sleeve of the first crowned tooth coupling through a bolt. According to the utility model, the structure of the original coupler is improved, and the coupler assembly is adopted, so that the service life of the coupler between the motors is prolonged, the production efficiency and the transmission precision are improved, and the production cost is reduced.

The utility model relates to a double-layer film automatic pipe bending machine which is characterized in that a machine head mounting frame is slidably arranged on a rack along a Y-Z axis, and a power output shaft of a first driving motor is fixedly connected with a driving gear; a rotating shaft is rotatably connected to the machine head mounting frame, and a driven gear meshed with the driving gear is coaxially and fixedly connected to the rotating shaft; a first pipe bending assembly is further fixedly connected to the rotating shaft, a second pipe bending assembly is arranged on the machine head mounting frame, and at least two first pipeline clamping blocks used for positioning and supporting a pipeline are arranged on an action output part of the first pipe bending assembly. Two or more sets of pipe bending mechanism clamping dies and clamps of different models are arranged on one machine head, the pipe bending mechanism clamping dies and clamps are adjusted to be aligned and matched with the steel pipe, in the one-time machining process, the multi-bending-radius machining requirement of the steel pipe is met, the product machining diversity is improved, and the machining efficiency is improved. And by arranging the pipe bending mechanism and the pipe feeding mechanism, the production efficiency and the machining precision are improved.

The utility model discloses a kind of two-stage planetary reduction module suitable for frameless motor, belong to robot movement field, to solve the problem of poor integration when existing frameless motor adapts reduction module, insufficient reduction capacity.The module includes motor, two-stage planetary reduction mechanism, motor shell, shell end cover and output flange;Motor contains coaxially arranged stator winding and motor rotor, and motor rotor is ladder shaft structure;Two-stage planetary reduction mechanism is composed of primary reduction unit and secondary reduction unit, primary sun gear is connected with motor rotor by first sun shaft, secondary sun gear is connected with primary planetary gear by first planet carrier, and output flange is connected with second planet shaft, and first gear ring is arranged on the inner wall of motor shell.The utility model does not need transition component, and integration is high, two-stage reduction can realize high transmission ratio, and transmission precision is high, support is stable, effectively improve equipment load capacity and operating reliability.

The invention relates to an integrated vacuum transmission device and relates to the technical field of vacuum transmission equipment, the integrated vacuum transmission device comprises a speed reducer and a motor, the speed reducer comprises a shell, an output shaft is rotatably arranged in the shell, one end of the output shaft extends to the outer side of the shell, and the other end of the output shaft is in transmission connection with the motor through a speed reduction transmission assembly; a magnetic sealing assembly is arranged between the end, away from the motor, of the output shaft and the shell, and the magnetic sealing assembly forms dynamic sealing between the output shaft and the shell. According to the device, the leakage problem of a traditional vacuum transmission device is effectively solved through the magnetic sealing assembly, and the operation reliability of the device is improved.

The utility model discloses an edge grinding device for processing a protective air-tight door, which comprises a working table, a first supporting piece is arranged on one side of the upper surface of the working table, the first supporting piece is rotatably connected with two groups of first belt wheels, one end of a shaft rod of one group of first belt wheels is connected with a driving assembly, and the two groups of first belt wheels are in transmission connection with an abrasive belt. The abrasive belt can be tensioned through the tensioning assembly, a limiting roller is arranged on the inner side of the abrasive belt, and the limiting roller can move in the horizontal direction through the moving assembly and can also be matched with the lifting assembly to push the abrasive belt to move downwards to make contact with the air-tight door. The limiting rollers can flexibly move in the horizontal direction and the vertical direction, so that accurate polishing of different positions and shapes of the air-tight door is achieved, the flexibility greatly improves the efficiency and accuracy of polishing operation, and due to the fact that the limiting rollers can freely move in the horizontal direction and the vertical direction, the polishing efficiency is greatly improved. Therefore, the device can meet the polishing requirements of the air-tight doors of different sizes and shapes.

The application relates to a gear expansion sleeve structure for coaxially fastening a gear on a connecting shaft, which comprises an inner pressure expansion sleeve, an outer pressure expansion sleeve and adjusting screws, the inner pressure expansion sleeve is axially symmetrically sleeved on the outer surface of the connecting shaft, the inner surface of the inner pressure expansion sleeve is gradually abutted against the outer surface of the connecting shaft; the outer pressure expansion sleeve is axially symmetrically sleeved on the inner diameter of the gear, and the end portion is abutted against the end surface of the gear, the outer surface of the outer pressure expansion sleeve is gradually abutted against the inner surface of the inner pressure expansion sleeve; the adjusting screws are provided with a plurality of end portions penetrating through the inner pressure expansion sleeve and the outer pressure expansion sleeve, and the inner pressure expansion sleeve is axially moved by being extruded through the axial movement of the adjusting screws, and is abutted against the inner surface of the outer pressure expansion sleeve and the outer surface of the connecting shaft, and the outer surface of the outer pressure expansion sleeve is extruded to the inner surface of the gear. The application realizes the stability between the gear and the connecting shaft, makes the component combination force more reasonable, and ensures the stability of the overall structure.

The utility model relates to the technical field of speed reducer drive structure, and disclose a gear drive structure for speed reducer, including sun gear, gear ring and buffer shock component, the sun gear middle part is equipped with the taper mounting hole, with the taper mounting head of drive link is connected through buffer shock component, and buffer shock component contains the first installation platform of taper mounting hole inner wall, the second installation platform of taper mounting head outer periphery, the disc spring between both and the rubber sleeve of disc spring outer periphery, the inner periphery of gear ring is engaged with planetary gear, and the planetary gear is engaged with sun gear, and the oil cavity is equipped in the planetary gear, and the oil supply groove of outer periphery annular array, the oil supply groove is equipped with oil storage groove in the tooth surface of second wheel tooth two sides, and the oil supply groove is connected with oil storage groove. The utility model can buffer impact, strengthen engagement lubrication, reduce the wear and tear of wheel tooth, promote transmission stability and efficiency, prolong the service life of speed reducer, and be applicable to the speed reducer of industrial, engineering machinery and other fields.