153 results about "Balance shaft" patented technology

An internal combustion engine for a vehicle includes: a crankshaft; a balancer shaft that is connected to the crankshaft and is rotated by rotational power transmitted from the crankshaft; a crankcase including a crank chamber that accommodates the crankshaft and the balancer shaft; and a filler that fills a space around the balancer shaft in the crank chamber and is a member different from a wall surrounding the crank chamber.

A motorcycle (1000) comprises an engine (100), a frame (200), a walking system (300) and a suspension system (400), the engine (100) comprises a crankshaft (21), a balance shaft (22), an output gear (23), a balance gear (24), a main shaft (31), an auxiliary shaft (32), multiple sets of variable-speed driving gears (33) and multiple sets of variable-speed driven gears (34), and the output gear (23) is in meshing transmission with the balance gear (24) so as to drive the balance shaft (22) to rotate; a first plane (101) is determined by the axis of the main shaft (31) and the axis of the crankshaft (21), a second plane (102) is determined by the axis of the main shaft (31) and the axis of the auxiliary shaft (21), and an included angle theta of 0 degree lt is formed between the first plane (101) and the second plane (102); theta < lt >; and 180 degrees.

The invention discloses an assembling structure and method for a pure electric steering gear with double speed reducing mechanisms, and relates to the technical field of pure electric steering gear. According to the structure, a speed reducing shell and a motor controller are arranged on a steering gear shell, and a first-stage speed reducing mechanism composed of a small gear and a large gear is sequentially arranged in the speed reducing shell; one end of the worm is connected with the large gear through a transmission balance shaft, and a spring and a bearing are arranged in the transmission balance shaft to achieve radial elastic supporting and mechanical balance. The assembling method is carried out according to the sequence of the self-adaptive adjusting assembly, the worm, the transmission balance shaft, the speed reduction shell, the steering gear shell and the motor controller, and through a rotation test, the meshing clearance of the gear pair and the worm and gear pair is subjected to self-adaptive compensation by utilizing elastic deformation of a spring and a rubber element. Under the condition of a single motor, a large total transmission ratio and a large steering output torque are obtained, and meanwhile transmission stability, noise vibration performance and long-term use reliability are considered.

The present disclosure is directed generally to automated trailer door systems for use at vehicle loading docks. At least a portion of the trailer door system can be externally driven for opening and closing trailer doors at the loading dock. The automated trailer door system can include a counterbalance shaft that moves the trailer door between a closed position and an open position; and a drive unit having a torsion member operably coupled to the counterbalance shaft; and a drive member rotatably engaged with the torsion member, the drive member having an engagement portion accessible external to the trailer door. Rotation of the drive member via the engagement portion can rotate the torsion member to move the trailer door between the closed and open positions. A door winder can be coupled to a centering body and have a motor to rotate the drive member via the engagement portion.

The utility model discloses a kind of marine pump unit installation pedestals, belong to marine pump technical field, including base and the hydraulic vibration isolation mechanism of setting in the lower end surface of base, the hydraulic vibration isolation mechanism includes installation frame, vertically arranged support shaft is in the installation frame, hydraulic cylinder assembly is provided in the installation frame, the hydraulic cylinder assembly includes hydraulic cylinder, the upper end portion of support shaft is externally extended to the outside through installation frame, and is connected with base by connecting member, the lower end portion of connecting member is connected with the piston in the hydraulic cylinder through installation frame, and it provides the support force upwards for support shaft and connecting member;Bearing assembly for balancing axial force and radial force is provided in the installation frame of the lower end portion of support shaft.This utility model can effectively isolate vibration impact, reduce vibration transmission and the generation of noise, significantly reduce the mechanical stress of key equipment, wear and fatigue damage, prolong its service life.

This invention relates to the field of balance shaft machining technology, and provides a balance shaft machining device and method. The device includes a frame with a rotary spindle and a centering fixture. The centering fixture can center and clamp the shaft head of the balance shaft and drive the balance shaft to rotate as a whole. A support frame is disposed on one side of the frame, and a swing bracket is rotatably mounted on the support frame. The swing bracket can swing and move between a lifting position and a working position. The balance frame has a main body and a clamping assembly. The clamping assembly can clamp onto the outer wall of the balance shaft cylinder, so that the balance frame can rotate with the balance shaft. The balance frame and the shaft support on the balance shaft are respectively located on both sides of the cylinder, so that the center of mass of the balance shaft and the balance frame as a whole can be located on the axis of the balance shaft. This invention achieves rapid installation of the balance frame through the swing bracket and adjusts the center of mass of the balance shaft as a whole through the balance frame, solving the technical problem that existing rotary machine tools cannot perform machining with a shaft support.

The invention relates to the technical field of balance shaft machining, and provides a balance shaft machining device and method.The balance shaft machining device comprises a frame provided with a rotary main shaft and a centering clamp, and the centering clamp can clamp a shaft head of a balance shaft in a centering mode and drive the balance shaft to rotate integrally; the supporting frame is arranged on one side of the frame body, a swing bracket is rotationally arranged on the supporting frame, and the swing bracket can swing to move between a lifting position and a working position; the balance frame is provided with a main body and a clamping assembly, the clamping assembly can be clamped on the outer wall of a shaft barrel of the balance shaft so that the balance frame can rotate along with the balance shaft, and the balance frame and a shaft frame on the balance shaft are located on the two sides of the shaft barrel respectively so that the mass center of the balance shaft and the whole mass center of the balance frame can be located on the axis of the balance shaft; rapid installation of the balance frame is achieved through the swing bracket, adjustment of the overall mass center of the balance shaft is achieved through the balance frame, and the technical problem that in the prior art, a workpiece rotary machine tool cannot be provided with a shaft frame for machining is solved.

A device (6) for autonomous adjustment of the active length of a spiral (5), for oscillators (4, 5) of the balance-spiral type, comprising a cock (12) mounted on a plate (13) of a horological movement (2) and in which a balance shaft pivots, the spiral (5) including an inner end secured to the balance shaft and an outer end secured to a balance spring stud (8) fastened to a balance spring stud holder (10), the balance spring stud holder (10) being pivotably mounted on the cock (12) concentrically to the balance shaft, and means for modifying the active length of the spiral (5).

This utility model relates to the field of gear hole machining technology, specifically to a device for machining balance shaft gear holes. It includes a connecting plate with several limiting grooves on one side. A gripper slides within these grooves. A worm gear ring rotates inside the connecting plate, with spiral teeth fixed to one side. Several arc-shaped tooth grooves meshing with the spiral teeth are formed on one side of the gripper. A worm rotates inside the connecting plate, meshing with the worm gear ring. A slot is formed at one end of the gripper, with a pair of positioning blocks rotating within it. A gear body is clamped between the grippers. This utility model solves the problem that in existing gear machining, machine tool clamps often grip only the outer edge of the gear, making single-tooth clamping prone to displacement. Furthermore, the self-locking mechanism between the grippers and the spiral teeth inevitably leads to loosening over time.

The utility model relates to a balance shaft shell plate spring positioning tool, which belongs to the technical field of balance shaft shell processing and comprises a workbench, a front positioning block and a rear positioning block are respectively mounted at two ends of the upper surface of the workbench, the front positioning block is mounted on an L-shaped base through a vertically mounted first threaded rod, and the inner side end of the front positioning block is a cambered surface. An arc-shaped groove is formed in the lower edge of the center of the inner side end, a first round through hole allowing a first threaded rod to penetrate through is formed in the upper surface of the front positioning block, the first round through hole communicates with the second round through hole, and a first fixing nut is installed on the first threaded rod; the rear positioning blocks are fixed to the left side and the right side of the rear installation base through horizontally-installed second threaded rods, the rear positioning blocks are vertically provided with inserting grooves used for allowing the second threaded rods to penetrate through, second fixing nuts are installed on the second threaded rods, and horizontal limiting blocks are arranged between the rear positioning blocks and the rear installation base and fixed to the workbench through bolts. According to the utility model, the modular design is adopted, the balance shaft housing can be stably positioned, and the disassembly and the assembly are convenient.

The invention relates to a magnetic attraction tray, a rigid balance shaft support and a heavy vehicle, the magnetic attraction tray comprises a bottom plate, a permanent magnet and a switch mechanism, the bottom plate is horizontally and fixedly arranged, and the permanent magnet is installed on the bottom plate; the switching mechanism is mounted on the bottom plate, is in transmission connection with the permanent magnet and is used for opening and closing the permanent magnet. The balance bearing hub assembly has the beneficial effects that the structure is simple, the design is reasonable, the opening or closing of the permanent magnet can be realized, so that the balance shaft bracket can be quickly adsorbed, fixed and unlocked, and the stability of the balance bearing hub assembly is ensured; in addition, any part and part of the magnetic tray do not interfere with each other, and the operation efficiency is high.

The utility model discloses a balance axle hoist device, including base, the bottom of base is equipped with a plurality of trundle, the top rotatable of base is equipped with L type support, install the lifting coil on L type support, two unloading buckles are hung on the lifting coil, the top along its length direction of base is equipped with two lifting mechanism, the lifting mechanism includes the sleeve pipe of fixed mounting at the top of base, the top opening of sleeve pipe can slide and is equipped with the installation screw rod of inside, the outer wall cooperation sleeve of screw rod is located the nut of sleeve pipe top, the outer wall fixed connection of nut has a plurality of pole rod, the utility model discloses set up L type support, lifting coil, lifting mechanism, baffle rod etc, are convenient for to balance axle assembly and turn over, and balance axle assembly moves to the truck chassis below, can to balance axle assembly and carry out the jacking, thereby facilitate on the car chassis to balance axle assembly and install, easy operation, convenient to use.

The utility model discloses a compact high-performance parallel double-cylinder engine, which comprises an engine main body, a crankshaft assembly and a speed change assembly are symmetrically arranged in the engine main body, and a balance shaft assembly connected with the crankshaft assembly is arranged in the engine main body between the crankshaft assembly and the speed change assembly. A cylinder head is arranged at the top of the engine body, an air inlet assembly and an exhaust assembly are arranged on the cylinder head, a piston assembly connected with the crankshaft assembly is arranged in the cylinder head, a first transmission wheel and a second transmission wheel are rotationally arranged on the side wall of the engine body, the first transmission wheel is connected with the crankshaft assembly, and the second transmission wheel is connected with the second transmission wheel. The first transmission wheel is connected with a driving shaft in the speed change assembly, the second transmission wheel is connected with a driving shaft in the speed change assembly, and meanwhile the first transmission wheel and the second transmission wheel are sleeved with the transmission belt, so that the engine has the beneficial effects that the occupied space of the engine during installation is reduced, and the compactness of the engine is guaranteed.

The utility model provides a beating-up mechanism of a hydraulic loom, and relates to the technical field of hydraulic looms. The swing shafts are connected to the two ends of the balance shaft; one end of the spline shaft is connected with one end of the swing shaft; one end of the rocker is in spline connection with the other end of the spline shaft, and the beating-up mechanism improves the weaving adaptability of large-width cloth between the beating-up mechanism and a weaving machine.

The invention discloses an engine, and belongs to the technical field of engines, the engine comprises a box body, a crankshaft system, a speed change system and a transmission shaft are arranged in the box body, the crankshaft system comprises a balance shaft assembly, and the balance shaft assembly comprises a first balance shaft and a second balance shaft; the first balance shaft and the second balance shaft are symmetrically arranged on the two sides of the crankshaft system. The transmission shaft is arranged below the crankshaft system and the transmission system and is in transmission connection with the transmission system; a driving device is arranged outside the box body, and the first balance shaft is arranged below the driving device. According to the scheme, the crankshaft system, the speed control system and the transmission shaft are all arranged in the box body, the crankshaft system and the speed control system are communicated and adjacently arranged, and the transmission shaft is arranged below the speed control system and the crankshaft system, so that the structures of the crankshaft system, the speed control system and the crankshaft system are compactly arranged.

The utility model discloses a shaft sleeve structural member, which relates to the technical field of mechanical transmission, and comprises a shaft sleeve body, a polygonal hole, a limiting groove, a limiting lug and hollow structures on two side end surfaces, the octagonal hole is arranged in the shaft sleeve body, and the torque is transmitted through a polygonal contact surface to prevent the relative sliding of a shaft and the shaft sleeve; five sets of symmetrically-distributed hollowed-out structures are arranged on the end faces of the two sides, each set comprises four hollowed-out grooves, a first inclined rib, a straight rib and a second inclined rib are formed, a second straight rib is formed between every two adjacent sets, stress is dispersed through the design of the symmetrical ribs, and balance of light weight and high strength is achieved. Outer convex rings are arranged on the outer sides of the two ends of the shaft sleeve body, a multi-stage limiting mechanism is formed by combining limiting grooves and convex blocks, and the axial and circumferential stability is ensured; the utility model has the advantages of high-efficiency torque transmission, accurate positioning, light weight and economical efficiency, and is suitable for mechanical systems with higher requirements on weight and stability.

The utility model discloses a balanced shaft static balance detection device, including bottom plate and install on the support frame of bottom plate, is installed on the support frame a pair of bearings, and the top of bearing is provided with the stand, and the stand is detachably equipped with cleaning pad and cleaning brush, and the control structure of support frame is provided with the control of stand movement, the utility model discloses through the automatic cleaning of bearing surface pollutant of moving stand drive cleaning pad and cleaning brush, avoids the detection error, and promotes the precision and efficiency.

The invention relates to the technical field of motorcycle part machining, in particular to a motorcycle balance shaft assembling device which comprises a base, a rack assembly, a positioning assembly, a control assembly and a press fitting assembly. The rack assembly comprises guide columns, spring space rings, limiting rings, a movable mold and reset springs, the two guide columns are fixedly connected with the base and located on the top of the base, the spring space rings are connected with the guide columns and located on the outer sides of the guide columns, the two limiting rings are fixedly connected with the guide columns and located on the tops of the guide columns, and the reset springs are arranged on the movable mold. The movable die is connected with the spring space ring and located on the outer side of the guide column, the two reset springs are fixedly connected with the guide column and located between the spring space ring and the base, the positioning assembly is connected with the base, the control assembly is connected with the positioning assembly, and the press-fitting assembly is connected with the movable die. The problem that high size and position precision must be guaranteed in the process of assembling the balance shaft is solved.

The invention relates to the field of high-pressure boiler feed pumps, and particularly discloses an energy-saving balanced type high-pressure boiler feed pump which comprises a pump body, a pump shaft, a tail cover and a bearing cover, the pump body is provided with a liquid inlet section and a liquid outlet section, the pump shaft is provided with a plurality of impellers, and the pump shaft is provided with a synchronous barrel abutting against the back faces of the impellers close to the non-driving end. A coarse adjustment plate is fixedly connected to the synchronous cylinder, a throttling gap is reserved between the coarse adjustment plate and the pump body, a fine adjustment plate is arranged on the peripheral wall of the coarse adjustment plate, a fine balance cavity is reserved between the back face of the fine adjustment plate and the pump body, and a control mechanism used for controlling hydraulic pressure of the fine balance cavity is arranged in the pump body. A separation mechanism used for separating the coarse balance cavity and the fine balance cavity is arranged in the pump body, and a supply mechanism used for supplying balance liquid into the coarse balance cavity is arranged on the pump body. The pump has the advantages that the axial thrust is balanced, the pump shaft does not need to axially float, the stability is high, and the rough adjustment plate and the fine adjustment plate cannot be abraded.

The utility model relates to the technical field of aluminum veneer processing, and discloses a honeycomb aluminum veneer positioning and punching device which comprises a punching machine, a punching head is movably installed on the punching machine, an installation frame is arranged on one side of the punching machine, a cross-shaped sliding table is fixedly installed on the installation frame, and a clamping frame is installed on the installation frame in a sliding mode. A clamping detection assembly is arranged on the clamping frame, two sets of fixing frames are fixedly installed on each of the two sides of the punching machine, and a balance supporting assembly is arranged between the two sets of fixing frames on each side. Through the arrangement of the balance supporting assembly, the balance shaft supports the parts, extending to the two sides of the punching machine, of the aluminum veneer so that the balance degree of the aluminum veneer can be guaranteed, and the punching and punching effect can be improved; and meanwhile, when the friction roller is matched with the angle sensor, the movement of the aluminum veneer can be detected, and the position of the mounting plate is flexibly adjusted according to the movement track of the friction roller, so that the supporting effect on the aluminum veneer is guaranteed, and the balance degree during stamping and punching operation of the aluminum veneer is guaranteed, so that the overall machining effect is improved.

The utility model relates to a direct-current brushless rotor heat dissipation mechanism, which comprises a rotor body, a balance shaft is sleeved in the rotor body, a stator winding is sleeved on the periphery of the rotor body, a stator iron core is arranged outside the stator winding, heat dissipation fins are arranged outside the stator iron core, and the balance shaft is sleeved on the balance shaft. And a water-cooling heat dissipation structure is arranged in the balance shaft and the stator iron core. According to the direct-current brushless rotor heat dissipation mechanism, by arranging a water cooling heat dissipation structure 7, when the direct-current brushless rotor heat dissipation mechanism is used, cooling cold water is introduced into a first spiral conveying pipe 703 and a second spiral conveying pipe 704 by opening a blocking head 701, the first spiral conveying pipe 703 is arranged in a positioning iron core 5, heat generated by high-speed rotation of a rotor body 1 can be adsorbed, and the heat dissipation efficiency is improved; and the two ends of the first spiral conveying pipe 703 are used for inputting and outputting cold water respectively, and the subsequent water can be circulated, so that the heat generated by the operation of the rotor body 1 can be better dissipated.

The present application belongs to the technical field of cold rolling pipe mill, and particularly relates to a balancing device and method for coaxial bidirectional rotation of a crankshaft segment block of a high-speed cold rolling pipe mill. The device is composed of a frame assembly, a driving motor, a shaft coupling, a high-speed shaft, a first gear, a second gear, a connecting rod mechanism, an idler wheel, an idler wheel shaft, a first balancing mechanism, a large gear, a crankshaft, a second balancing mechanism and a base. The first balancing mechanism arranged between the high-speed shaft and the crankshaft integrates the balancing shaft and the segment block in the double-shaft balancing shaft system of the prior art into the crankshaft shaft system. The present application not only inherits the balancing effect of the double-shaft balancing, but also greatly reduces the size and weight of the crankshaft transmission system along the rolling direction, greatly reduces the investment of the equipment, greatly reduces the alternating force and bending moment acting on the crankshaft, prolongs the service life of important components such as the crankshaft and bearings, improves the reliability of the equipment, and reduces the maintenance cost.

The utility model relates to the field of helicopter manufacturing, in particular to balance detection equipment for a double-rotor unmanned helicopter. The detection equipment comprises a device main body, an embedded protection plate, an extended balance shaft, an embedded sleeve shaft, a penetrating movable shaft, a movable balance plate, a connecting table, a supporting column, a connecting disc, a movable rolling shaft, a connecting plate shaft and a bottom balancing instrument.

The invention provides a balance mechanism and an engine, the balance mechanism comprises a balance shaft, the axial direction of the balance shaft is parallel to the axial direction of a crankshaft of a horizontally opposed two-cylinder engine; the axial direction of the crankshaft is parallel to or the same as the Y-axis direction; the two cylinders are located on the two sides of the crankshaft in the X-axis direction respectively and distributed in the Y-axis direction at intervals. The balance shaft is used for being connected with the crankshaft through the preset gear assembly, so that when the crankshaft rotates, the balance shaft is driven to rotate in the direction opposite to the rotating direction of the crankshaft at the same rotating speed; the balance assembly comprises a bevel gear assembly and a balance part, and the bevel gear assembly is connected with the balance shaft and the balance part, so that the rotating axis of the balance part is parallel to or the same as the Z-axis direction; the two balance assemblies are distributed in the axial direction of the balance shaft. The two balance parts are oppositely arranged in the X-axis direction, and the rotation directions of the two balance parts are opposite, so that the two balance parts generate force in the X-axis direction to balance the reciprocating inertia force of the two cylinders correspondingly.

Provided are a rotatable armrest and a console assembly provided with the rotatable armrest. The rotatable armrest includes a case, a knob system, and a hinge system, in which the knob system and the hinge system are mounted in the case. The hinge system includes a counterbalance shaft, and the rotatable armrest may be rotatable about the counterbalance shaft and fixed in a first position, a second position, and a third position. In the first position, the rotatable armrest is positioned in a folded down position, in the second position, the rotatable armrest is positioned in a horizontally forward-facing position, and in the third position, the rotatable armrest is positioned in a horizontally backward-facing position.

The utility model discloses a commercial vehicle balance shaft support structure which comprises a support body, the outer surface wall of the support body is fixedly connected with a first connecting end and a second connecting end, a plurality of sets of screw holes are formed in the second connecting end, and a reinforcing assembly used for connecting the multiple sets of screw holes in series is integrated on the outer side of the second connecting end. A reinforcing rib is fixedly connected between the first connecting end and the support body. According to the invention, the radian of the bending section is increased, so that the length ratio of the vertical section is reduced, and the stress can be more uniformly distributed in the whole structure through smooth arc transition, so that the local stress peak value is reduced, the overall bearing capacity is improved, and meanwhile, a plurality of screw holes are connected in series through the convex seat; by means of the structure, loads acting on each screw hole can be dispersed to a certain degree, stress is more evenly distributed on the whole protruding base structure instead of being concentrated around a single screw hole, the product structure is more reasonable, and the pressure bearing capacity of the commercial vehicle balance shaft support structure is effectively improved.

A transmission arrangement includes a planetary transmission and a differential. The planetary transmission includes a planetary sun gear, a ring gear, a gear carrier, planetary gear shafts, and stepped planetary gears. The planetary gears are mounted in the gear carrier and engaged with the planetary sun gear and the ring gear. The differential includes first and second sun gears, balance shafts axially overlapping the planetary gear shafts, and first and second pinion gears. The first pinion gears are arranged on the balance shafts and engaged with the first sun gear, and the second pinion gears are engaged with the first pinion gears and the second sun gear. The planetary gear shafts or the balance shafts have an end face recess, or the planetary gear carrier has first receptacles for the planetary gear shafts and second receptacles for the balance shafts, with the balance shafts contacting the planetary gear shafts.

The utility model discloses a forging die for a high-stability motorcycle balance shaft, which comprises two die holders, namely a lower die and an upper die, and each die comprises a die block and a boss; half cavities are formed in the two die holders; each half cavity comprises a half shaft cavity, a half shallow balance cavity and a half deep balance cavity; the parting surface comprises a surrounding part, a concave part, a transition part and a convex part, the concave part, the transition part and the convex part are distributed in the length direction of the half-shaft cavity, the distances between the concave part, the transition part and the convex part and the corresponding modules are sequentially increased, the concave part is connected with the side, away from the half-shaft cavity, of the half-deep balance cavity, and the convex part is connected with the side, away from the half-shaft cavity, of the half-shallow balance cavity. According to the forging die for the high-stability motorcycle balance shaft, the distance between the convex part and the corresponding die block is increased, and the distance between the concave part and the corresponding die block is reduced, so that the flash forming position during forging is changed, flashes are concentrated in the middle of the eccentric block, deformation of the corresponding position of the eccentric block of a blank during trimming is avoided, and the quality of a forged product is improved.

The utility model relates to a balance shaft post-processing measuring tool, and relates to the field of balance shafts, the balance shaft post-processing measuring tool comprises a tool table, a positioning clamp arranged on the tool table and a sample clamp arranged on the tool table, the tool table is provided with a supporting frame, and the supporting frame is slidably connected with a mounting seat; a first measuring rod and a second measuring rod are slidably connected to the mounting seat, a transmission gear is rotatably connected to the mounting seat, the first measuring rod and the second measuring rod are meshed with the transmission gear and located on the two opposite sides of the transmission gear respectively, the mounting seat is provided with a driving part, and the driving part drives the first measuring rod to abut against the surface of the calibration part. The second measuring rod abuts against the balance shaft to be measured, the installation base is located between the positioning clamp and the sample clamp, and the second measuring rod is provided with a detection piece used for detecting the bending degree. When the surface curvature of the to-be-measured workpiece is different from that of the sample, the indication value of the detection piece at the second measuring rod changes, the results of the calibration piece and the to-be-measured balance shaft do not need to be compared respectively, and the detection steps are simplified.