255 results about "Balance shaft" patented technology

The invention relates to the technical field of multi-stage centrifugal pumps, and discloses an axial balance assembly which comprises a balance shaft sleeve, a pump shaft and a high-pressure throttling ring connected to a water inlet and outlet section, the balance shaft sleeve is connected to the pump shaft and arranged on the periphery of the pump shaft in a sleeving mode, and the high-pressure throttling ring is arranged on the periphery of the balance shaft sleeve in a sleeving mode. The high-pressure throttling ring and the periphery of the balance shaft sleeve are limited to form a flow blocking cavity, the flow blocking cavity is provided with a high-pressure flow blocking inlet and a high-pressure flow blocking outlet, the high-pressure flow blocking inlet and the high-pressure flow blocking outlet are oppositely arranged at the two ends of the flow blocking cavity in the axial direction of the balance shaft sleeve, and the high-pressure throttling ring is provided with a high-pressure ring end face. The balance shaft sleeve is provided with a high-pressure shaft end face, and the high-pressure choke flow inlet is located between the high-pressure ring end face and the high-pressure shaft end face. According to the axial balance assembly, generation of residual axial force from the high-pressure section to the low-pressure section is reduced, the service life of the water pump is prolonged, and the operation reliability of the water pump is improved.

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.

The invention discloses a wear-resistant coating for an automobile balance shaft gear set and a preparation method thereof, and the wear-resistant coating comprises the following components by weight: 500-2000 parts of an organic solvent, 300-520 parts of polymer resin, 18-126 parts of a lubricating phase, 0-50 parts of a reinforcing phase, 15-60 parts of an auxiliary agent, and 1-4 parts of a pigment filler. The preparation method comprises the following steps: adding the modified lubricating phase into the organic solvent to prepare a mixed solution, adding the mixed solution and other components into a ball milling tank, and carrying out filtering and vacuum defoaming after ball milling to obtain the high-molecular wear-resistant coating. And spraying the wear-resistant coating on the gear, and carrying out third-order curing to obtain a gear product coated with the macromolecular wear-resistant coating. The wear-resistant coating prepared by the invention has excellent wear resistance and damping characteristic, can buffer the impact force of gear transmission, improves the knocking noise problem in the gear operation process, and improves the NVH performance of the whole gear.

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 pipeline support and a vehicle with the same, the pipeline support comprises a step part, the step part is constructed into a step shape and is provided with an upper step part, a side step part and a lower step part, the side step part is connected between the upper step part and the lower step part, the side step part, the upper step part and the lower step part form obtuse-angle bends, and the upper step part and the lower step part form obtuse-angle bends; the upper step part is suitable for being installed on a balance shaft cross beam, the side step part and the lower step part extend to the front side of the balance shaft cross beam, the lower step part is provided with a ribbon hole, and a ribbon can penetrate through the ribbon hole to bind a brake tube bundle; and the side extension part is connected to the side step part and extends forwards in the length direction of the frame longitudinal beam, and the side extension part is suitable for bundling the wire harness and guiding the wire harness to extend along the side extension part. The pipeline support has the advantages of reducing pipeline bundle abrasion, avoiding resonance, being good in safety and the like.

1. Name of the product in this design: Balance Shaft Housing. 2. Application of this design: Mining car parts. 3. The key point of the design of this product lies in its shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The invention relates to the technical field of machining and measurement, in particular to a balance shaft plane measuring tool which comprises a base, a positioning mechanism and a measuring mechanism. The measuring mechanism comprises a sliding block arranged on the front face of the base in a sliding mode and two symmetrical mounting rods fixedly arranged on the upper surface of the sliding block, dial indicators are rotationally arranged at the top ends of the two mounting rods through adjusting bolts, and probes are arranged at the measuring ends of the dial indicators. Through the arrangement of the positioning mechanism and the measuring mechanism, the balance shaft main body can be abutted and fixed, then the slide block is moved to enable a probe on the dial indicator to reach a specified detection position on the surface of the balance shaft main body, the dial indicator is subjected to zero comparison, finally, the slide block is moved to drive the dial indicator and the probe to move, and the reading change of the dial indicator is observed. Whether the balance shaft main body is qualified or not can be quickly judged by judging whether the reading change of the dial indicator is within a specified range or not, so that the tool has the advantages of low manufacturing cost and high measurement efficiency.

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 present invention discloses a design method for a high-lift, high-speed, two-stage shielded pump capable of balancing axial forces. By differentiating and refining the front and rear cover plates of the centrifugal impeller, the force difference between the front and rear cover plates of the two-stage impeller is used to balance the axial force directed toward the inlet of the first-stage impeller due to the high pressure at the inlet of the secondary impeller of the two-stage shielded pump. The steps are as follows: determining the basic performance parameters of the pump to be designed; determining the basic structure of the pump; allocating the outlet head of the two-stage impeller; determining the impeller parameters; respectively calculating the axial force generated by the asymmetry of the front and rear cover plates of the two-stage impeller, the fluid dynamic reaction force on the impeller, and the axial force generated by the pressure difference between the inlets of the two-stage impeller; calculating the axial resultant force. If it is less than the maximum pressure that the thrust bearing assembly can withstand, the design is completed. Otherwise, the outlet head of the two-stage impeller is redistributed and the impeller geometric parameters are adjusted until the requirements are met. This method does not add additional axial force balancing measures. The centrifugal pump designed by this method is highly efficient and reliable in operation.

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.

A mechanical movement impact resistance testing tool comprises a test support, a test base plate, a pendulum clamp, a shock absorber unit, and a position limiting assembly. The test support is provided with at least one mounting hole. The test base plate is fixed in the mounting hole. The upper surface of the test base plate is provided with a groove for receiving a balance wheel. The bottom surface of the groove is provided with a recess for receiving two discs. The bottom surface of the recess is provided with a middle hole for inserting the lower shaft tip of the balance shaft. The bottom surface of the recess is provided with a positioning hole for inserting a disc nail. The pendulum clamp is fixed to the test base plate and forms a cantilever above the groove. The shock absorber unit includes a shock absorber mounted on the cantilever. The lower surface of the shock absorber is provided with a socket for allowing the upper shaft tip of the balance shaft to enter the center hole of the shock absorber. The position limiting assembly includes an outer stud fixedly connected to the shock absorber and an inner clamp. The bottom of the outer stud is provided with a first slit for receiving the end of a hairspring, and the bottom of the inner clamp is provided with a second slit for receiving the outermost arc portion of the hairspring. An assembly method for the mechanical movement impact resistance testing tool is also disclosed.

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 balancer device includes: an idler shaft having an idler sprocket around which a drive chain is wound, and an idler gear integrated with the idler sprocket; and a balancer housing accommodating, thereinside, balancer shafts generating a vibratory force by the rotation force transmitted from the idler gear. The balancer housing includes: a support part which is provided on the outer part of an upper housing, and supports an end portion of the idler shaft; a boss portion which is provided at a position away from the support part; and a first reinforcing part and second reinforcing part which are disposed between the support part and the fixing portion to reinforce the lower part on the lower housing side of the support part. Consequently, it is possible to suppress the occurrence of noise and vibration between an idle gear and a drive side gear.

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 invention relates to the technical field of artificial intelligence, in particular to an automobile balance shaft forging forming and heat treatment method and system.The automobile balance shaft forging forming and heat treatment method comprises the steps that a balance shaft blank is subjected to heat treatment operation through a heat treatment program to obtain a balance shaft test piece; comparing the balance shaft standard structure with the balance shaft test piece to obtain a deformation information set, and performing stress test on the balance shaft test piece to obtain residual stress distribution; performing problem flow identification on the heat treatment program according to the deformation information set and the residual stress distribution to obtain a problem flow set and an optimization direction; querying a recommendation scheme set in the optimization direction; performing simulation modeling according to the material structure of the balance shaft, performing parameter assignment on the recommended scheme set to obtain a process solution set, and updating the heat treatment program according to the process solution set to obtain an updated heat treatment program; and according to the updated heat treatment program, heat treatment operation is conducted on the balance shaft blank, and the target automobile balance shaft is obtained. The forging efficiency and the qualified rate of the automobile balance shaft can be improved.

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.