136 results about "Layshaft" patented technology

A drive module assembly for use in a vehicle includes a housing defining a housing interior, and an electric machine including a rotor and a stator. The drive module assembly also includes a differential rotatably coupled to the rotor, a first input shaft rotatably coupled to the differential, a second input shaft rotatably coupled to the differential, a first counter shaft rotatably coupled to the first input shaft, a second counter shaft rotatably coupled to the second input shaft, a first output shaft rotatably coupled to the first counter shaft, and a second output shaft rotatably coupled to the second counter shaft. The differential is configured to receive rotational torque from the electric machine and configured to transmit rotational torque from the electric machine to the first and second input shafts.

A system performs a method for operating a vehicle. A raw total axle torque request for the vehicle is received at a processor of the vehicle. The vehicle includes a primary axle, one or more electric motors on the primary axle, an engine coupled to the primary axle, a secondary axle, and an additional electric motor on the secondary axle. The processor performs an optimization to determine a primary axle torque target and a secondary axle torque target that meets the raw total axle torque request while locating a value representative of a minimum of an objective cost function for the vehicle, controls the one or more electric motors and the engine at the primary axle using the primary axle torque target; and controls the additional electric motor at the secondary axle using the secondary axle torque target.

A system performs a method for operating a vehicle. A raw axle torque request for the vehicle is received at a processor of the vehicle. The vehicle includes a main shaft, one or more electric motors on the main shaft, an engine coupled to the main shaft, a countershaft, and an additional electric motor on the countershaft. The processor performs optimization to determine a primary shaft torque target and a secondary shaft torque target that meet the original shaft torque request while locating a value representing a minimum value of a target cost function of the vehicle, using the primary shaft torque target to control one or more electric motors and engines at the primary shaft; and controlling the additional motor at the countershaft using the countershaft torque target.

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 disclosure relates to a bicycle transmission comprising an axle, such as a wheel axle or a countershaft in a crank transmission, configured to be non-rotatably fixed to a frame of the bicycle; at least one sun gear rotatably mounted about the axle; at least one clutch mechanism for selectively preventing rotation of the at least one sun gear in at least one direction of rotation about the axle; and a camshaft mounted inside the axle to actuate the at least one clutch mechanism.

The utility model discloses a kind of efficient submersible motor, comprising: motor shell assembly, motor shell assembly inside one end is fixedly provided with motor assembly, the outer side one end of motor shell assembly is rotatably connected with pump liquid paddle assembly, and the one end of motor shell assembly is screw-connected and provided with fixed bolt;In the utility model, drive pinion is rotated by driving pinion, to drive driven gear rotation, drive paddle shaft rotation in trident adapter frame, to drive pump liquid rotary propeller rotation, so that external water liquid can be pumped into to the inside of circulating pipeline by water inlet pipe mouth, and discharge by water outlet pipe mouth end, so that it can be through the efficient heat dissipation cooling of mutually adhering fin groove and limiting heat conduction fin to motor, and the spiral groove set can make water flow turbulent flow to improve heat exchange efficiency.

A power take-off (PTO) assembly comprises a PTO shaft, a rear PTO assembly with a rear PTO output shaft extending from the transmission and coupling to a first gear set driven by the rotational power from the PTO shaft, and a countershaft coupling to the first gear set to receive rotational power from the PTO shaft. The countershaft has an output gear at an intermediate point in the transmission upstream of the rear PTO assembly and near an access port in the transmission housing. The PTO assembly further comprises an additional detachable central PTO arrangement, which can be detachably attached to the gearbox housing at the access opening and has an output shaft of the central PTO and a second gear set configured to mesh with the output gear of the countershaft, driving the output shaft of the central PTO with the rotational power from the PTO shaft.

The utility model provides a lubricating grease torque testing device. The lubricating grease torque testing device comprises a testing box body, a bearing seat, a lifting device, a force measuring rope and a rotating motor, the testing box body is used for providing a low-temperature environment required by testing in the testing box body; the bearing seat is positioned in the test box body and is connected with an auxiliary shaft; the lifting device is placed in the test box body, and the lifting device is used for bearing the bearing seat in a lifting manner; the force measuring rope is arranged in the test box body, the upper end of the force measuring rope is connected to the top wall of the test box body, and the lower end of the force measuring rope is used for connecting a bearing seat; the rotating motor is located outside the testing box body and connected with a main shaft, the main shaft partially penetrates through the testing box body and is detachably connected to the auxiliary shaft, and the rotating motor drives the bearing seat through the main shaft and the auxiliary shaft which are connected.

The swing-arm double-gear power transmission mechanism is a type of engine that eliminates the crankshaft structure of the traditional cylinder piston connecting rod crankshaft engine, replacing it with a swing-arm double-gear power transmission mechanism. This mechanism consists of a straight rod fixed to the piston, a U-shaped gear carrier fixed to the straight rod, and two fork plates under the U-shaped gear carrier, each with a long, narrow opening in the middle. At the rear end of each fork plate, there is also a shaft hole. Between the two fork plates of the U-shaped gear carrier, a pair of meshing gears are installed. A connecting plate is installed on each side of the gears, and each connecting plate has a shaft hole corresponding to the gear shaft position, allowing for sliding fit with the gear shaft or a rolling bearing fit. After passing through the connecting plates, both ends of the gear shaft are fixed to a pair of swing arms. The other end of the upper gear's swing arm is fixed to the power output main shaft and the flywheel energy storage sub-shaft, respectively. The lower gear's swing arm... At the other end, it engages with the shaft holes or rolling bearings on the two fork plates of the U-shaped gear carrier. Driven by the engine starter, the main shaft transmits rotation to the upper gear of this structure, which in turn transmits it to the meshing lower gear. This, in turn, drives the U-shaped gear carrier to move along the direction of the cylinder piston, preparing the engine for the four-stroke power stroke. When the engine ignites and begins the power stroke, the piston drives the U-shaped gear carrier, and through the initial operating mode, the gear set, in turn, pushes the main shaft to continue rotating in the direction it began to rotate, performing power. At the end of the power stroke, the flywheel releases its stored energy, continuing to complete the other strokes of the engine, forming a continuous cycle of power delivery. Because of this continuous cycle, the main shaft continuously outputs power, eliminating all the defects of traditional crankshaft engines. This swing arm double-gear power transmission mechanism has an extremely simple structure, reliable operation, is very easy to manufacture, process, install, and maintain, has low cost, and extremely high thermal efficiency. It is suitable for all applications and equipment using traditional cylinder piston crankshaft engines.

A horizontal axis rotational force generator is introduced, utilizing fluid flow to drive motion. The system includes one or more rotating mechanisms, each with multiple blades positioned at equal phase angle intervals. These blades revolve around a horizontal shaft while simultaneously rotating around parallel sub-shafts when exposed to fluid pressure, producing torque on the main shaft. A support structure holds the shaft and allows stable axial rotation at designated heights. A gear interlocking unit adjusts angular velocities, shifting blade revolution speeds to half their value in the opposite direction, and transfers the result to the main shaft. As blades pass vertically above the shaft, their orientation is controlled so that surfaces align horizontally or vertically relative to the shaft. This ensures blades consistently generate maximum rotational force on the horizontal plane, efficiently converting fluid flow into usable mechanical energy.

The utility model relates to the technical field of magnesium alloy processing, in particular to a uniformly-heated magnesium alloy heat treatment device which comprises a heat treatment chamber, heating elements distributed circumferentially are mounted on the inner wall of the heat treatment chamber, and a moving assembly is arranged on the heat treatment chamber and used for controlling magnesium alloy to move. Comprising a sealing cover installed at the upper end of a heat treatment cavity, a ring base is fixed to the upper end in the sealing cover, a gear ring is fixed to the inner wall of the ring base, a main shaft rod is rotatably installed in the center in the sealing cover in a penetrating mode, and a circular plate is fixed to the outer wall of the main shaft rod and located in the sealing cover in a rotating mode; a gear is fixed to the upper end of the auxiliary shaft rod and is in meshing transmission with the gear ring. The magnesium alloy is uniformly heated at multiple angles through composite rotation of rotation of the revolution frame; the modular design can quickly expand the number of loading layers, is suitable for different batch production, improves the efficiency, reduces the energy consumption, and ensures the stable heat treatment quality.

The utility model discloses a low-noise rotor of a small and micro energy-saving refrigeration motor, and relates to the technical field of motor rotors. Comprising a rotor core and a shaft connecting structure arranged in the rotor core, the shaft connecting structure comprises a main shaft piece, an auxiliary shaft piece, a plurality of connecting rods, a plurality of bolts, a limiting ring and a clamping and embedding ring, the sides, close to each other, of the main shaft piece and the auxiliary shaft piece are embedded in the rotor core, one ends of the connecting rods are fixedly arranged on the main shaft piece, and the other ends of the connecting rods are fixedly arranged on the clamping and embedding ring. And the other ends of the plurality of connecting rods are fixedly embedded in the auxiliary shaft piece through a plurality of bolts respectively. Through the main shaft piece, the auxiliary shaft piece, the connecting rod, the bolt and the limiting ring, the overall weight of the rotor can be effectively reduced, the operation efficiency of equipment can be improved, the lighter rotor can reduce the burden of a bearing and a driving system, the service life of the equipment is prolonged, meanwhile, the proper centrifugal force can ensure that the motor rotor keeps stable in the operation process, and the service life of the equipment is prolonged. And vibration and noise are reduced, so that the overall performance and reliability of equipment are improved.

The utility model relates to a wood cutting machine with an automatic oil supplementing function, and belongs to the field of wood cutting machines, the wood cutting machine comprises a wood cutting box, a main shaft, an auxiliary shaft and a driving shaft, the main shaft, the auxiliary shaft and the driving shaft are all rotatably connected in the wood cutting box, the main shaft and the auxiliary shaft are both provided with wood cutting assemblies, the auxiliary shaft is arranged right above the main shaft, the driving shaft is arranged right below the main shaft, and the main shaft and the driving shaft are arranged in the wood cutting box. The main shaft, the auxiliary shaft and the driving shaft are all coaxially connected with gears, every two adjacent gears are meshed, a plurality of sets of oil supplementing assemblies are arranged on the wood cutting box, the main shaft, the auxiliary shaft and the driving shaft all correspond to one set of oil supplementing assemblies, and the oil supplementing assemblies are externally connected with oil pumps. In the using process, the oil pump is matched with the oil supplementing assembly, oil is automatically supplied to the main shaft, the auxiliary shaft and the driving shaft, the abrasion possibility of the main shaft, the auxiliary shaft and the driving shaft in the using process is reduced, and therefore the wood cutting efficiency of the wood cutting machine is improved.

The utility model provides a metal support polishing device, which relates to the technical field of metal support polishing, and comprises an operation table, a conveyor belt, a fixed plate, a support table, a storage box, a base, a top plate, a stand column, a mounting frame, a first spring, a screw rod, a knob, a stop block, a sliding block and a second spring, the grinding and polishing device further comprises an annular abrasive belt arranged on the outer surface of the driving wheel and the outer surface of the driven wheel in a sleeving mode, and a motor used for driving the main shaft to rotate is arranged on the mounting frame. Compared with traditional equipment, the metal support polishing device has the advantages that movement control over the metal support is omitted, the time spent on repeatedly placing the metal support to be machined on the conveying belt is saved, and the polishing efficiency is improved.

The utility model relates to lifting machine technical field especially is lifting machine equipment with automatic height limiter, including lifting mechanism and is used for jacking and moving object, and lifting mechanism includes: main part assembly, the vertical support of fixed middle part in car frame upper end, lifting assembly includes the mount frame fixed in the front and back both ends of vertical support, and the left and right both ends of mount frame all are fixed with guide rod, and the longitudinal sliding installation of both end guide rods has the sliding frame between, anti -falling subassembly, the base plate of fixed in the bottom of sliding frame, the left and right both ends of base plate all are rotatably installed with main shaft rod through the shaft seat, and the front and back both ends of main shaft rod all are fixed with the shaft seat, and the inner end between both end shaft seat is fixed with the baffle, and the auxiliary shaft rod is fixed between both end shaft seat, and the electric push -rod of both sides of base plate bottom all are hinged, and the output end of electric push -rod is hinged with the connecting piece, horizontal baffle constitutes the anti -falling barrier, and can fix goods after overturning, convenient to move, and the stable support of supporting plate is provided when heavy load, ensures the safe and stable operation.

The present patent application relates to the technical field of vehicle control. Disclosed are a mid-drive transmission, a mid-drive electric motor and a vehicle. The mid-drive transmission comprises: a bottom bracket axle, which is rotatably supported on a vehicle frame and a torque is inputted therefrom; a countershaft, which is parallel to the bottom bracket axle; a transmission mechanism, which is connected to the bottom bracket axle and the countershaft respectively and has at least two transmission ratios; a gear-shifting mechanism, which is linked to the transmission mechanism and is configured to change the transmission ratios of the transmission mechanism; a driving device, which is connected to the gear-shifting mechanism; and a front chainring, which is fixed to the transmission mechanism and by means of which the torque is outputted. In the mid-drive transmission of the present application, after the torque is inputted from the bottom bracket axle, the transmission mechanism can be driven to operate, and finally, the torque is outputted by means of the front chainring connected to the transmission mechanism; by means of controlling the driving device, the gear-shifting mechanism can be controlled to change the transmission ratios of the transmission mechanism, thereby achieving an automatic gear shifting function, and thus enriching the types of transmissions and expanding a user's options in terms of transmissions; and the structural composition of the transmission is clear and concise, and the functions of various components are explicit, which facilitates achieving a modular design.

The utility model discloses a kind of tire dismounting auxiliary electric lift, including the pedestal frame of universal wheel, double-axis synchronous double shear fork lifting mechanism, battery-powered electric drive system, movable bearing platform and integrated tool management system, double shear fork mechanism is inserted into synchronous lifting by main shaft and auxiliary shaft, shear fork arm both ends are semicircular, main shaft both ends are inserted into the main shaft long axis of auxiliary shaft, sliding bearing is loaded in auxiliary shaft hole.Using double-axis synchronous shear fork structure and battery-powered system, special for tire lifting operation, avoid the safety risk of artificial handling, realize flexible operation under outdoor scene;Platform, drum mechanism and magnetic tool management design significantly improve tire positioning accuracy and operation efficiency, especially suitable for automobile repair workshop, tire replacement site and road rescue.

Gear arrangement (2) with a main axis (H), with a driven gear section (3), wherein the driven gear section (3) is arranged coaxially to the main axis (H), with a secondary axle (N), with an output pinion (4), wherein the output pinion (4) is arranged coaxially to the secondary shaft (N) and meshes with the output gear section (3), wherein an annular space section (5) is formed coaxially and concentrically to the output gear section (3), an insert component (14), wherein the insert component (15) has at least one oil guide structure (15), wherein the oil guide structure (15) is arranged at least section by section in the annular space section (5). characterized by the fact that the oil guide structure (15) has a ramp section (16), wherein the ramp section (16) is designed to rise in the axial direction in the direction of rotation around the skin axis (H).

The application discloses a bevel gear positioning machining tool, and belongs to the technical field of workpiece loading devices. The bevel gear positioning machining tool comprises a transmission assembly. The transmission assembly comprises a driven shaft arranged horizontally. A socket is formed in the end of the driven shaft. The socket extends along the radial direction of the driven shaft and forms a separate support piece at the end of the driven shaft. A stabilizing box comprises a secondary shaft. The secondary shaft and the driven shaft are coaxially arranged. The secondary shaft is opposite to one end of the driven shaft and is provided with a taper head matched with the socket. The improvement of the elastic support piece at the end of the driven shaft, the taper head on the secondary shaft and the gear key cooperation can generate deformation of the support piece by extrusion of the taper head to tighten the workpiece. At the same time, the gear key fills the gap to achieve meshing and clamping. The cantilever support is converted into double-end support, the shafting rigidity is significantly improved, the transmission slip is prevented, the eccentric rotation and vibration caused by the suspension installation of the large-section bevel gear with a large bevel angle are effectively avoided, and the surface smoothness of the tooth surface machining is ensured.

The utility model provides a detection device for automation equipment, which relates to the field of automation equipment and comprises a detection shell, an opening is arranged on the front side shell wall of the detection shell, a detection head is arranged at the opening, and two mounting lugs are fixedly connected on the upper end shell wall of the detection shell. The rack at the telescopic end of the electric telescopic rod drives the gear meshed with the rack to rotate, and the gear and the connecting shaft are utilized to drive the two auxiliary shafts to rotate relative to the two rotating lugs, so that the two auxiliary shafts can stably drive the protection plate to rotate along with the auxiliary shafts to abut against the detection shell, and the detection head is protected. Dust is effectively prevented from being attached to the detection head; the connecting shaft drives the transmission wheel at the upper end of the vertical shaft to rotate through the transmission wheel and the transmission belt, the vertical shaft drives the middle shaft to rotate along with the vertical shaft through the main gear and the auxiliary gear, the middle shaft can drive the curved brush to swing once along with the middle shaft, the detection head can be automatically cleaned through the curved brush, and it is guaranteed that the detection effect is not affected.

Conventionally, the rotation transmitted from the input shaft to the counter shaft is returned and transmitted to the harvesting main shaft via gears for standard speed and lodging speed, which presents the problem of transmission loss. [Solution] The output rotation of the engine 22 is transmitted from the output shaft 24 of the continuously variable transmission 20 to the first shaft 29, second shaft 32 and third shaft 26 of the transmission 23 via the input shaft 25 of the transmission 23. The first shaft 29 is provided with a first gear 30 that is always meshed with the gear 27 of the input shaft 25, a second gear 43, and a clutch 48 that rotates integrally with the first shaft 29 between the first gear 30 and the second gear 43. The second shaft 32 is provided with a third gear 46 that is always meshed with the first gear 30, a fourth gear 45 that is always meshed with the second gear 43, and a fifth gear 47 that transmits rotation to the third shaft 26. The first gear 30 is provided with an engagement portion 50 that engages with the engagement portion 48A of the clutch 48, and the second gear 43 is provided with an engagement portion 51 that engages with the engagement portion 48B of the clutch 48.

This invention discloses a crankshaft assembly and a compressor. The crankshaft assembly includes a crankshaft body and a piston. The crankshaft body includes a main shaft, a first eccentric shaft, a connecting shaft, a second eccentric shaft, and a secondary shaft connected in sequence. The end of the second eccentric shaft connected to the connecting shaft has an outer chamfer. The piston has a sleeve hole with an inner chamfer at the opening. The piston is sequentially sleeved onto the first eccentric shaft or the second eccentric shaft via the secondary shaft. The diameters of the first and second eccentric shafts are both b, and the eccentricity of both the first and second eccentric shafts is Es. The diameter of the main shaft is g, the axial length of the connecting shaft is c, and the axial length of the piston along the sleeve hole is h, where b / 2 - Es - g / 2 ≤ 0, and c / h ≤ 0.87. The crankshaft assembly and compressor of this invention can improve the rigidity of the crankshaft body while reducing the installation difficulty of the piston.

The utility model relates to the technical field of cleaning devices, and discloses an air compression type stirring structure and a nickel alloy rinsing bath thereof, the air compression type stirring structure comprises a driving assembly, and the driving assembly comprises a pneumatic motor, a transmission unit and a rotating main shaft; the transmission unit comprises a flywheel gear ring and a limiting mounting part, and the limiting mounting part comprises a lantern ring and a connecting rod; the bottom end of the rotating main shaft is fixedly connected with a plurality of groups of rotating rods, the stirring unit is arranged at one ends, far away from the rotating main shaft, of the plurality of groups of rotating rods, and the stirring unit comprises a gear, a rectangular block and a stirring rod. A flywheel gear ring is movably meshed with a gear, so that a stirring unit rotates around a rotating countershaft in the rotating process, the stirring effect of the device is better, a stirring rod is movably clamped with a rectangular block, the stirring rod can elastically move in the stirring process when colliding with an object, and damage to the material caused by collision with the material is reduced; and through reasonable structural design, the practicability of the device is improved.

The invention relates to a power train for a generator set, a generator set and a method for manufacturing a power train for a generator set. A gearbox for a generator includes an input shaft coupled to an input gear and an output shaft coupled to an output gear. The gearbox also includes a first countershaft coupled to a first pair of transfer gears, where one of the first pair of transfer gears is configured to mesh with the input gear and the other of the first pair of transfer gears is configured to mesh with the output gear. The gearbox also includes a second countershaft coupled to a second pair of transfer gears, where one of the second pair of transfer gears is configured to mesh with the input gear and the other of the second pair of transfer gears is configured to mesh with the output gear.

The invention relates to a locking device for a driveline transmission in a vehicle, comprising: an electric motor (6) having a rotor (60) having an axis (A1); a first pinion (21) that rotates integrally with the rotor; a countershaft (2) fitted to rotate about a second axis (A2) and equipped with a second pinion (22) and a third pinion (23), the second pinion meshing with the first pinion; an output ring gear (3) meshing with the third pinion and in a kinematic relationship with the wheels of the vehicle; a locking sleeve (1) centered on a first axis and axially displaceable between an unlocked position (P1) and a locked position (P2); a shift fork (4) for axially displacing the locking sleeve between an unlocked position and a locked position in which the locking sleeve directly rotationally connects the first pinion to the output ring gear.

Transmission for vehicles comprising a drive motor (4), a main transmission (6), an auxiliary transmission (2) and a clutch device (5) arranged between the drive motor (4) and the main transmission (6), wherein the main transmission (6) comprises a drive shaft (7) connected to the clutch device (5), a countershaft (9) and a main shaft (26), wherein the countershaft (9) is connected to the drive shaft (7) and the main shaft (26) via a splitter gear assembly (11) and a splitter gear assembly (12), respectively.a main gear assembly (13) is connected, and wherein the auxiliary transmission (2) comprises a planetary gear (14) with a ring gear (22), a sun gear (18) and a planet carrier (20) on which at least one planet gear (24) is rotatably mounted, wherein the ring gear (22) and the sun gear (18) engage with the at least one planet gear (24) via teeth (32), wherein the planetary gear (14) is connected to the main shaft (26) of the main transmission (6), and wherein a first braking device (54) is arranged on the countershaft (9) to slow down the countershaft (9) when shifting in the transmission (3), characterized in that: a second braking device (56) is arranged on the drive shaft (7) to slow down the drive shaft (7) when shifting in the transmission (3).

Vehicle drive unit (1) comprising: a plurality of actuators (2) generating torques, a plurality of drive shafts (3, 310a) to which the torques generated by the actuators (2) are applied, an axle (4) transmitting force to a wheel (6) of a vehicle, and a reduction mechanism (5, 501, 601) reducing a rotational speed between the drive shaft (3, 310a) and the axle (4), wherein the torques applied to the drive shafts (3, 310a) are transmitted to the axle (4) while being multiplied to generate at least one of a driving force and a braking force of the vehicle, wherein the reduction mechanism (5, 501, 601) comprises: a planetary gear unit (7) having a sun gear (10), a ring gear (11) and a carrier (12), an external gear (14) being mounted in an outer circumferential section of the gear ring (11) is formed, at least one outer gear set (9),which comprises the following: a first planet gear (21) that is meshed with the external gear (14), a second planet gear (22) that is arranged on the same axis of rotation as the first planet gear (21) and rotates integrally with the first planet gear (21), and at least one planet gear shaft (23, 31, 91) that rotates integrally with the first planet gear (21) and the second planet gear (22), a center gear (18) that is arranged on the same axis of rotation as the sun gear (10) and rotates integrally with the sun gear (10), a pilot gear (19) that is arranged between the center gear (18) and the second planet gear (22) and is meshed with both the center gear (18) and the second planet gear (22), at least one sun gear shaft (15) that rotates integrally with the center gear (18) and the sun gear (10), a carrier shaft (16) that rotates integrally with the carrier (12) rotates and is designed as the axis (4), and at least a countershaft (20, 41),which rotates integrally with the countershaft (19), wherein the drive shafts (3) comprise at least one of: the at least one sun gear shaft (15), the at least one planet gear shaft (23, 31, 91) or the at least one countershaft (20, 41), wherein the vehicle drive unit (1) comprises: several outer gear sets (9) or several countershafts (20, 40), wherein the actuators (2) comprise several drive actuators (51, 52, 71, 81, 82) which generate drive torques, and the drive torques generated by the drive actuators (51, 52, 71, 81, 82) are each applied to the drive shaft (3).

This invention belongs to the field of transmission technology, and specifically relates to a mid-shaft transmission and a mid-mounted motor. The mid-shaft transmission provided in this application includes: a mid-shaft, rotatably supported on a vehicle frame, from which torque is input; a hollow sub-shaft, parallel to the mid-shaft; a transmission mechanism connected to both the mid-shaft and the sub-shaft, having at least two transmission ratios; a drive unit connected to a shifting mechanism and concealed within the sub-shaft; a shifting mechanism linked to the transmission mechanism for changing the transmission ratios of the transmission mechanism; and a front sprocket fixed to the transmission mechanism for outputting torque. The mid-shaft transmission and mid-mounted motor of this application conceal the drive unit within the sub-shaft, making efficient use of the space within the sub-shaft, resulting in a more compact mid-shaft transmission and a reduced overall size.